Tuberculosis Is An Infectious Disease - 1217 Words

World Health Organization estimated one-third of the world’s population is suffering with this disease at present even though there is vaccine widely available, there is still a high morbidity rate in some countries every year. Africa, Western and Southeast Asia are the most affected areas, making approximately 86 percent of tuberculosis cases in the world. This research paper will discuss, tuberculosis in New Zealand. It will discuss the biology of the bacterium, risks factors and the importance of immunisation and prevention. Tuberculosis is an infectious disease caused by a bacterium called Mycobacterium tuberculosis (Marieb, 2012). Tuberculosis is a contagious infection that begins in the lungs and spread to other organs in the body including the kidneys, brain and bones. Tuberculosis is spread by inhaling airborne droplets from an infected person. These airborne particles are spread when the infected person sneezes, coughs or laughs. Tuberculosis cannot be spread, by contact. Tuberculosis is caused by a rod shaped bacterium or bacillus called Mycobacterium tuberculosis. These droplets are discharged into the air by a person with active tuberculosis (Britannica, 2012). The spreading progress is very effective. These droplets can remain in the air for several hours in addition it only needs ten bacilli to start an infection. When the infected air is breathed in, the bacilli enter the lungs through the bronchioles and into the alveoli. The bacilli then infect the alveoliShow MoreRelatedTuberculosis As An Infectious Disease1515 Words   |  7 PagesINFECTIOUS DISEASE: TUBERCULOSIS Tuberculosis is one of the leading infectious diseases around the world. Globally, infectious diseases like tuberculosis among others continue to be one of the leading causes of death in children, adolescents and of the leading causes in adults (WHO). The purpose of this article is to examine and discuss mostly the etiology of tuberculosis, as well as its cause and spread. To better understand the subject of tuberculosis as an infectious disease and the problem itRead MoreTuberculosis As A Infectious Disease1339 Words   |  6 PagesTuberculosis (TB) is a highly infectious disease that can harm any organ of the body, especially the lungs. Every year about over a million people die due to tuberculosis and even more are infected. A person in contact with an infected individual can easily put themselves at risks of getting TB. Due to the emergence of human immunodeficiency virus (HIV), tuberculosis infections commenced to increment more rapidly. A person with HIV has an impotent immun e system which is not able to fight infectionsRead MoreTuberculosis : A Infectious Disease Essay1685 Words   |  7 PagesTuberculosis; often referred to as the silent killer, is a highly infectious disease that is contracted annually by 9.3 million individuals globally, and causes 1.8 million deaths. It’s high mortality rate led to the formation of the American Lung Association in the United States in 1904, after it was declared the leading cause of death during the nineteenth century and early twentieth century. The origin of tuberculosis is not certain; the first documented deaths were recorded in ancient Egypt andRead MoreTuberculosis Is The Infectious Disease923 Words   |  4 Pages Tuberculosis is the infectious disease, that cause mortality worldwide and is the actual issue for worldwide health system. Tuberculosis (TB) is a communicable disease, that may presented in an active or a latent form. It affects a various body systems, but mostly a respiratory system. This disease is triggered by the bacterium Mycobacterium tuberculosis. It is transmitted through the air; therefore, a person gets infected by an inhaled bacterium from a person with active form of TB, and who isRead MoreTuberculosis : An Infectious Disease1399 Words   |  6 PagesInfectious diseases can attack the human body in many forms and varieties. Tuberculosis is one type of these infectious diseases that is a bacterial infection which spreads throughout the lymph nodes and within the bloodstream enabling it to affect all organs in the human body, commonly termed TB. TB is caused by the members of the Mycobacterium tuberculosis complex. The M. tuberculosis complex includes the species M. africanum, M. bovis, M. canettii, M. microti and M. tuberculosis, these can beRead MoreTuberculosis : An Infectious Disease Essa y2029 Words   |  9 PagesTuberculosis, also known as (TB) has been around for decades and is still active across the globe. It was a huge threat to Europe and America in The 19th century. Tuberculosis is an infectious disease caused by the bacteria Mycobacterium tuberculosis. An individual can become infected with the disease while breathing in the bacteria that is spread through the air droplets when a person coughs or speaks. TB mainly affects the lungs, however, it can attack other organs also. Tuberculosis can be fatalRead MoreTuberculosis Is An Infectious Disease Essay1230 Words   |  5 PagesMinistries of Health, states there is still an increase of number of cases of tuberculosis diagnosed each year in New Zealand, approximately 300 cases. Tuberculosis is known to be one of the oldest disease among humans and today is one of the leading causes infection and death in adults. According to the World Health Organization (WHO, 2016) about one-third of the world’s popul ation is suffering with this disease at present even though there are vaccine widely available. Though there is still a highRead MoreTuberculosis As An Infectious Disease1033 Words   |  5 PagesIntroduction Tuberculosis is an infectious disease that has afflicted individuals from the Old World for several thousands of years. This has been well documented in the archaeological record. However, the origins and development of tuberculosis in the New World have been the subject of multiple controversies. These controversies have stemmed from the discussion of whether or not Europeans introduced tuberculosis to the Americas. Evidence from South America has clearly shown that tuberculosis was presentRead MoreTuberculosis As A Infectious Disease1329 Words   |  6 PagesTuberculosis Tuberculosis (TB) is a highly infectious disease that can harm any organ of the body, especially the lungs. Every year about over a million people die due to tuberculosis and even more are infected. A person in contact with an infected individual can easily put themselves at risks of getting TB. Due to the emergence of human immunodeficiency virus (HIV), tuberculosis infections began to increase more rapidly. A person with HIV has a weak immune system which is not able to fight infectionsRead MoreTuberculosis : An Infectious Disease931 Words   |  4 PagesEven though the idea of tuberculosis being hereditarily was present, tuberculosis was still agreed to be an infectious disease at this time. Tuberculosis, as many other bacterial infections, needs a host. The bacterium is not found outside of the animal’s body. The main way that tuberculosis, and many other bacteria-caused diseases spread is through sputum. It is estimated that â€Å"a fairly well advanced consumptive spit s out from one and a half to four and a third billion bacilli in twenty-four hours†

The British s Involvement During The 1947-1948 War Of...

Chenika Bukes Over 20,000 people were murdered during the 1947-1948 War of Independence. The British s involvement in the conflict during the 1910 s-1940 s is responsible for those deaths through a narrative of events in the upcoming years to the war. The British fuelled the Arab-Israeli conflict by antagonising the Palestinian Arabs, by sentencing the Jewish people to death and by beginning the 1947-1948 Mandatory Palestine war of independence. The Arab-Israeli conflict roughly began with minor disagreements and altercations since the late 19th century up until present day. Whenever the British got involved in the conflict, something seemed to go wrong. The Arabs were antagonised by the British when the McMahon agreement was not seen through. The White paper, commissioned by the British, created a death sentence for the Jewish people- Dr.Weizmann (1939, June), and when the British withdrew from the conflict a series of events led to the 1947-1948 war of independence. The McMahon Agreement was constituted on the 24th of October 1915 between the Meccans and the British. Upon the rise of Arab nationalism, the Arabs (Meccans) pursued independence from the Ottoman Empire. Amir Abdullah, son of Hussein Bin Ali the Sharif of Mecca, visited the British general consul in Egypt in February of 1914. His incentive was to verify that the British will recognise Arab independence if they support the British in war with purpose to abdicate the Ottoman Turks. Then in 1917 theShow MoreRelatedArab Israeli Conflict 883 Words   |  4 Pagesessentially a dispute over the area known up until 1948 as Palestine, which is considered holy to all three major monotheistic religions.2 The primary parties in the conflict are Israeli (formerly Zionist) Jews and Palestinian Arabs (who are predominately Muslim).3 It is one of the unresolved problems bequeathed to the region by the British and French imperialist powers following the division of the Ottoman Empire between them at the end of World War 1.4 There are many features of the Middle East,Read MoreThe During World War II1567 Words   |  7 PagesDuring World War II, Singapore was conquered and occupied by the Japanese Empire from 1942 to 1945. British Military Administration was formed to govern the island until March 1946. Much of the infrastructure had been destroyed during the war, including electricity and water supply systems, telephone services, as well as the harbor facilities at the Port of Singapore. There was also a shortage of food leading to malnutrition, disease, and rampant crime and violence. High food prices, unemploymentRead MoreThe Creation Of Israel By John F. Kennedy1990 Words   |  8 PagesImmigrants, and World War II. â€Å"In the 1920’s, The League of Nations established a mandate for Great Britain in Palestine† (Benson). This means that Great Britain serves as the ruling power of Palestine. A few years later, Jewish Immigrants began to immigrate to Palest ine because of the mass discrimination they faced around the world (Benson). This later became a problem because both Jews and Arabs were fighting for the same land and the leaders both longed for power. â€Å"Later in the 1930’s, many Jews beganRead MoreThe Palestinian And Palestinian State3134 Words   |  13 Pages 4 Introduction 5 Israel and Palestine Early Affairs 6 UN Involvement 10 US and UK Government Relations 12 Conclusion Read MoreGlobal Effects Of The Cold War1311 Words   |  6 PagesAmanda Fuchs The Global Effects of the Cold War and Decolonization The Cold War, also known as what could have been the third world war, conquered the second half of the 20th century. This international crisis, beginning at the end of World War II, is defined as the period of tension between the United States and the Soviet Union. There are numerous reasons as to why many believed the Cold War commenced, one being that the Soviet Union wanted to spread its belief of communism worldwide, which inRead MoreQuaid E Azam7455 Words   |  30 PagesGovernor-General of Pakistan In office August 15, 1947 – September 11, 1948 Monarch George VI Prime Minister Liaquat Ali Khan Preceded by The Earl Mountbatten of Burma (as Viceroy of India) Succeeded by Khwaja Nazimuddin 1st Speaker of the National Assembly of Pakistan In office August 11, 1947 – September 11, 1948 Preceded by None Succeeded by Maulvi Tamizuddin Khan Born December 25, 1876 Karachi, Bombay Presidency, British India Died September 11, 1948 (aged 71) Karachi, Dominion of Pakistan EthnicityRead MoreThe Asian African Conference Of 19551250 Words   |  5 PagesAmerica s role in the project was, both as a regional bloc, and from the point of view of individual actors. It will bring nuance to the ways in which it was being conceived by the West, by the Third World, and by Latin Americans. I argue that Latin America’s engagement with the Third World Project followed multiple paths, intersecting with constituent groups within the broader collective tide of the Third World Project. The setting of this dissertation takes place during the Cold War, which isRead MoreIndi A Very Respectful Man And An Intellectual Leader1780 Words   |  8 Pagesis that many of Sardar Vallabhai Patel s actions greatly motivated individuals to aid India to overcome some of its struggles during and after India s independence; especially, by leading in protests such as the 1917 No Tax campaign, his achievement of uniting over five hundred Princely States after India had won independence, and his duties as Home Minister (1946) and Deputy Prime Minister (1947) of India, alongside with his involvement in India’s 1950’s Constitution. Resembling many importantRead MoreThe Arab Israeli Conflict And Arab Palestinian Conflict3221 Words   |  13 Pagesmany historical events in the development of Islam. This struggle between the two religions led to a battle for attaining sovereignty in the Middle East. The tension between the two peoples eventually escalated into the Israeli–Palestinian conflict in 1947, which in turn evolved and developed into the broader  Arab-Israeli conflict. To fully understand the viewpoints of both sides of this conflict and the history that comes with it, it is necessary to know the movements that are at the root of all theRead More20th Century Somalia1656 Words   |  7 Pagesformer British Protectorate of Somaliland and Italy’s former Trust Territory of Somalia. Somalia’s modern history began in the late 1800’s, when European powers began to trade and settle in the Somalia area. These events and the events that occurred during the 20th century helped shape the modern Somalia government and culture today. In 1886, the British gained control over northern Somalia through treaties by guaranteeing British protection to Somali chiefs who agreed to them. The British were

Biology Gcse Revision free essay sample

Small living organisms; there are 3 types * Bacteria – ecoli, salmonella * Fungi – mushrooms, athletes foot * Virus – influenza (flu), HIV * When they enter our body, they multiply and release toxins / harmful chemicals into our blood * They duplicate every 20 minutes Physical barriers: eyelashes prevent MO’s from entering through our eyes, nasal hairs reduce them, skin is a barrier to them (although they can enter through cuts), chemicals in tears and sweat, acid in the stomach kills most MO’s * Also called pathogens (microorganisms that cause disease) * Our body provides MO’s with ideal conditions to multiply in (warm and moist) The immune system: * All white blood cells are part of this system * Phagocyte – a type of white blood cell that will eliminate the virus by engulfing then digesting the bacteria, the process of this is called phagocytosis. Lymphocyte – a type of white blood cell that carry antibodies * Antigen  œ certain chemicals that are foreign to the body in pathogens * E. We will write a custom essay sample on Biology Gcse Revision or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page g. : 1. James is infected by some bacteria that cause a disease. 2. The bacteria reproduce and produce toxins that make James ill 3. A white blood cell detects the bacteria and it makes antibodies to attach to it. Other white blood cells engulf the labelled bacteria and destroy them 4. The white blood cells that produce the right antibodies reproduce meaning there are lots of them making antibodies 5. Most of the white blood cells that make this antibody die, but there are few that stay in the blood called memory cells 6. The bacteria are killed and James gets better 7. He is then infected by the same bacteria 8. The memory cells that stayed in James’ blood from last time respond quickly and kill the bacteria before he becomes ill * Memory cell – a type of white blood cell that stay in the blood after the infection has been fought off * They respond quickly when it meets a microorganism for the econd time and produce the right antibody for the particular microorganism and destroy it before you feel unwell meaning you become immune to a disease. Vaccinations: * Vaccination involves exposing the body’s immune system to a dead or inactive version of the pathogen in order to stimulate white blood cells to produce antibodies for a disease or group of diseases * People can be immunised against a pathogen through vaccination. Different vaccines are needed for different pathogens * The vaccine contains only a weakened or harmless version of a pathogen, which means that the vaccinated person is in no danger of developing the disease * Epidemic – a widespread occurrence of an infectious disease in a community at a particular time * To prevent epidemics a large percentage of the population needs to be vaccinated Antimicrobials: Chemicals that inhibit the growth of MO’s or kill them, but don’t kill viruses * Antibiotics – type of antimicrobial that kill bacteria but don’t kill viruses * MO’s can sometimes become resistant to antimicrobials (leads to a gene for resistance being passed down to offspring) * Antibiotic resistance – when some of the bacteria are resistant to the antibiotics, this can be slowed down by finishing the course and only taking them when needed * The main steps in the development of resistance are: 1. Random changes or mutations occur in th e genes of individual bacterial cells 2. Some mutations protect the bacterial cell from the effects of the antibiotic 3. Bacteria without the mutation die or cannot reproduce with the antibiotic present 4. The resistant bacteria are able to reproduce with less competition from normal bacterial strains * Mutations in bacteria can result in them becoming resistant to antibiotics, turning the bacteria into a ‘superbug’ * MRSA is a superbug resistant to almost all antibiotics Clinical trials: * When a new drug is tested on humans to find out whether or not it is afe and if it works * Groups are chosen at random to make sure that the results of the study are reliable * The control group is the group that will be given the same drug again, or a placebo * Placebo – a ‘fake’ drug in the form of a medicine that doesn’t do anything, it just dissolves in your system * In some trials where patients are seriously ill, placebos aren’t used because it is unethical not to allow them to get the potential benefits of the new drug * Blind trial – patients don’t know if they’ve been given a drug or placebo because a patient who knows they are being treated might feel better for psychological reasons even if there hasn’t been any improvement * Double-blind trial – as well as the patients, the scientists carrying out the research also don’t find out until the end which patients were given real drugs/placebos * Open-label trials – the patients and the scientists are both aware of the treatments that have been used because they can’t be masked, e. g. if one is a drug and the other is exercise Circulatory system: * Blood is circulated around the body in tubes called blood vessels * Oxygen and nutrients are carried in the blood to the body cells and waste substances (e. g. arbon dioxide) are carried away from the cells * Cell – a basic unit of life * The heart is a pumping organ that keeps the blood flowing through the vessels * The heart is a double pump * The right side pumps deoxygenated blood to the lungs to collect oxygen and remove carbon dioxide * The left pumps oxygenated blood around the body * Aorta – biggest artery in the body * Coronary arteries – branch from the aorta and provide the heart with oxygen, blood and nutrients * Lumen – the inside space of a vessel Blood vessel| Structure and adaptation| Arteries| * Carry blood away from the heart to the body cells * The blood comes out of the heart at a high pressure so the artery walls ave to be thick, strong and elastic| Veins| * Carry blood back to the heart * The blood is at a lower pressure so the walls are thinner * The lumen is bigger than arteries so the blood can flow more easily * The valves keep the blood flowing in the right direction| capillaries| * Carry blood really close to every cell in the body to exchange substances (the walls are permeable to substances diffuse in and out) * Branches of very small arteries (a microscope is needed to see them) * Supply nutrients and oxygen and remove wastes (e. g. carbon dioxide) * Walls are only one cell thick which increases the rate of diffusion| Heart rate / blood pressure: Blood needs to be under pressure to be able to travel around our body * The pressure is kept up by the heart continuously pumping * Heart rate – number of times the heart beats in one minute * Pulse rate  œ number of times an artery pulsates in one minute * The pulsation of an artery is caused by blood being pumped through it by a heart beat * When the heart muscle contracts, blood is forced out of the heart and increases blood pressure * When the heart muscle relaxes, the heart fills with blood and blood pressure decreases * Blood pressure measurements – e. g. 135/85 the higher value is the pressure when the heart contracts and the lower value is when it relaxes * Normal / average blood pressure – 80-110/60-80 * Normal / average heart rate – 60-100bpm High blood pressure increases the risk of heart disease * High blood pressure can damage the smooth and unbroken lining of an artery * Fatty deposits can build up in these damaged areas and they restrict blood flow, increasing the blood pressure to increase * If a fatty deposit breaks through the inner lining of an artery, a blood clot can form around it which could completely block the artery * If a coronary artery becomes completely blocked, an area of the heart muscle will be totally cut off from its blood supply, receiving no oxygen – this causes a heart attack * A heart attack can cause serious damage to the heart or cause death of the heart muscle Heart disease: * Heart disease can be caused by genes but is often linked to lifestyle factors * Poor diet – cholesterol makes up a large part of fatty deposits increasing blood cholesterol which increases the risk of heart disease, food with a lot of salt increases blood pressure * Smoking – carbon monoxide reduces how much oxygen the blood can transport and nicotine increases heart rate * Stress – increases blood pressure Drugs – ecstasy and cannabis increase heart rate which increases blood pressure * Excessive alcohol – increases blood pressure * Regular moderate exercise reduces the risk of developing heart disease * Heart disease is more common in industrialised countries (e. g. UK and USA) because they can afford high fat food and don’t need to be very active because they can afford cars, etc Epidemiological studies: * Epidemiology is the study of patterns of diseases and the factors that affect them * Lifestyle factors – studying a group of people who all died from heart disease to look for similarities in their lifestyle that may be linked to heart disease, e. g. hey were all smokers or they had poor diets * Genetic studies – studying the genetic makeup of a large group of people and looking out for genetic similarities between the people who affected by heart disease Homeostasis: * Balancing inputs with outputs to maintain a constant internal environment * Body temperature and water levels are both kept constant * The environment is constantly ch anging so the conditions inside the body need to be kept steady in order for cells to function properly * Automatic control systems maintain body temperature and water levels * The three main parts to maintaining homeostasis are: 1. The receptors – detect a change in the environment 2. Processing centres – receive information and determine how the body systems respond 3. Effectors – produce the response * Negative feedback – information that causes a reversal in a control system, e. g. when we get too hot our body responds by bringing our temperature back to normal (37 degrees) * Vasodilation – when blood vessels become wider and closer to the skins surface * When body temperature goes over 37 degrees, it is detected by the receptors and a message is sent to the processing centre in the brain (hypothalamus). The effectors produce the response and the blood vessels vasodilate so that heat is lost and temperature drops. The vessels then return to their normal diameter. The kidneys maintain levels of water, urea, salts and other chemicals in the blood * Urea comes from broken down proteins and needs to be excreted because it has poisonous chemicals that can get into the blood stream * Inputs – water can be gained from drinks, food an d respiration * Outputs – water can be lost through sweating, breathing and in faeces and urine * The kidneys balance water levels by producing dilute or concentrated urine * Blood plasma – the liquid that carries blood cells and dissolved substances * The concentration of urine depends on the concentration of blood plasma (which varies with external temperature, exercise levels and the intake of fluids and salt) External temperature| Exercise | Intake of fluids and salts| * Sweat contains water so sweating causes water loss * When it’s hot, the kidneys reabsorb more water back into the blood * A small amount of concentrated urine will be produced| * Exercise makes you hotter so you sweat to cool down * Same effect as heat produced * Small volume of concentrated urine| * Not drinking enough water or eating too much salt will produce concentrated urine * Drinking lots of water will produce lots of dilute urine| * The concentration of urine is controlled by a hormone called ADH (anti-diuretic hormone) * The pituitary gland releases ADH into the bloodstream * The process of water content regulation is controlled by negative feedback When the concentration of blood plasma falls†¦| When the concentration of blood plasma rises†¦| The pituitary gland secretes†¦| Less ADH| More ADH| The kidneys reabsorb†¦| Less water| More water| The urine volume†¦| Increases| Decrease s| The urine concentration†¦| Decreases| Increases| 1. A receptor in the brain detects that the water content is too high 2. The processing centre in the brain receives the information and coordinates a response 3. The pituitary gland releases less ADH so the kidneys reabsorb less water Or 1. A receptor in the brain detects that the water content is too low 2. The processing centre in the brain receives the information and coordinates a response 3. The pituitary gland releases more ADH so the kidneys reabsorb more water * ADH production can be affected by drugs * Alcohol suppresses (restrains or forcibly stops) ADH production so the kidneys will reabsorb less water * Drinking alcohol can result in a larger amount of more dilute urine being produced * More water passes out of the body as urine which can cause dehydration * Ecstasy is an illegal recreational drug * Taking it can result in a smaller amount of more concentrated urine being produced * Ecstasy causes the production of ADH to increase so the kidneys will reabsorb more water * Less water passes out of the body as urine

marry Essays - Salem Witch Trials, Mary Eastey, Rebecca Nurse, Towne

Mary Easty, a wealthy mother of seven, was shockingly accused of witchcraft in the infamous Salem Witch Trials. Mass hysteria broke out when Easty, the sister of Rebecca Nurse, was accused of witchcraft. ?Considering the assumption that witchcraft was hereditary, Mary (Towne) Easty was certain to be accused of witchcraft after her sister, Rebecca (Towne) Nurse, was condemned for her unwavering appeal of innocence? (Austin). The Salem Witch Trials were not the greatest part of history, but they mark a knowing for the unknown in the particular situation. Those who were affected were women of the elder age, town crazies, those with a not so clean reputation, and those who resisted against the church and government. The Salem Witch Trials are almost, yet not quite, on the same levels as the Holocaust of World War Two. Easty was clearly innocent of this absurdity, she was wealthy, religious and fit the strict Puritan mold. It is believed that Mary Easty was accused due to jealousy of land and wealth. (Salem Witch Trials - The People - Mary Easty - DiscoverySchool.com) The Easty family had valuable land in Salem Village which made many greedy families, such as the Putnams, want their land. In this case, Putnam didn?t accuse Mrs. Easty, unlike Sarah Osborne?s case, where the Putnams were the main accusers. The Putnam?s seemed to play in the ignorance now known as the Salem Witch Trials. The Easty family was popular by default due to all of the land they own. ?As land became scar...

How to write for a global audience - Emphasis

How to write for a global audience How to write for a global audience The growth in global commerce means it is more likely than ever that your writing will have an international audience. Increasingly, we need to communicate with people who speak English as a second language, whether they are based in the UK or overseas. But your words can easily get lost in translation when writing for this readership, especially if you arent adapting your copy. To ensure all your readers fully understand your message, it is essential to make your writing as clear as possible, and bear some rules in mind. Emails between colleagues Even informal emails between co-workers need thinking about. Heres a reply to a colleague who has suggested you visit her office. Hi Mariela Thanks for the invitation. Phil and I are definitely up for it, but as its on the firms time, Ill need to get the go ahead from Tony Ill talk to him asap and get back to you. Jan At first sight this seems to be a perfectly clear email, but Mariela is a second-language speaker of English. This means we have to re-examine our writing. Language barriers Lets take a closer look at the language in the email to recognise the traps we can fall into: Clusters of meaningless words Phil and I are definitely up for it: the English language has hundreds of these clusters, eg put up with, look up to, top it up, which together have specific meanings. They are called phrasal verbs and we can often replace them with a one-word simple alternative, eg tolerate, admire, fill. Confusing words On the firms time: company or organisation are more recognisable words than firm in the context of work. Also, firm has more than one meaning, which could be confusing. And a literal translation of on the time wouldnt make sense. Colloquial expressions To get the go ahead: second-language speakers often enjoy these expressions once they know them. But we cant guarantee they know them yet. So, unless youre sure, avoid them. Abbreviations Asap: again, unless youre confident your reader knows the abbreviations, they will be meaningless. Heres a rewrite of the email: Hi Mariela Thanks for the invitation. Phil and I definitely want to come. Ill need to get Tonys permission as its during the working week. Ill talk to him as soon as I can and tell you what he says. Jan Its still informal and natural, but so much clearer to non-native English speakers.

The Weather and Folklore of Altocumulus Clouds

The Weather and Folklore of Altocumulus Clouds An altocumulus cloud is a middle-level cloud that lives between 6,500 to 20,00 feet above ground and is made of water. Its name comes from the Latin Altus meaning high Cumulus meaning heaped. Altocumulus clouds are of the stratocumuliform cloud family (physical form) and are one of the 10 basic cloud types. There are four species of cloud underneath the altocumulus genus: altocumulus lenticularis (stationary lens-shaped clouds that are often mistaken for UFOs)altocumulus castellanus (altocumulus with tower-like sproutings that billow upwards)altocumulus stratiformis (altocumulus in sheets or relatively flat patches)altocumulus floccus (altocumulus with scattered tufts and fringy lower parts) The abbreviation for altocumulus clouds is (Ac). Cotton Balls in the Sky Altocumulus are commonly seen on warm spring and summer mornings. Theyre some of the simplest clouds to identify, especially since they look like balls of cotton stuck into the blue background of the sky. Theyre often white or gray in color and are arranged in patches of wavy, rounded masses or rolls. Altocumulus clouds are often called sheepback or mackerel sky because they resemble the wool of sheep and scales of mackerel fish. Bellwethers of Bad Weather Altocumulus clouds that appear on a clear humid morning can indicate the development of thunderstorms later in the day. Thats because altocumulus clouds often precede cold fronts of low-pressure systems. As such, they also sometimes signal the onset of cooler temperatures. While they are not clouds from which precipitation falls, their presence signals convection and instability at mid-levels of the troposphere. Altocumulus in Weather Folklore Mackerel sky, mackerel sky. Never long wet and never long dry.Mackerel scales and mares tails make lofty ships carry low sails. If youre a fan of weather folklore, youve likely heard the above sayings, both of which are true. The first piece of lore warns that if altocumulus clouds are seen and air pressure begins to fall, the weather wont be dry for much longer because it may start raining within 6 hours time. But once the rain does come, it wont be wet for long because as the warm front passes, so too will the precipitation. The second rhyme warns ships to lower and take in their sails for the same reason; a storm may be approaching soon and the sails should be lowered to protect them from the accompanying high winds.

Courtroom Technology Essay Example | Topics and Well Written Essays - 750 words

Courtroom Technology - Essay Example The result was a massive media spectacle. Some judges disapprove of cameras in the courtroom, suggesting that judges may end up playing up to the camera. It is generally considered a negative thing to have a great deal of media attention surrounding a trial as it may prejudice those involved. Different jurisdictions have different rules relating to this issue. Indeed, even some Supreme Court Justices have been somewhat schizophrenic on this issue. A few years ago, Justice Antonin Scalia, who has always taken a hard line against technology in the courtroom, expanded the notion of where technology was acceptable during a public speech he gave: During an April 7 speech by Scalia at a high school in Hattiesburg, a deputy federal marshal, Melanie Rube, demanded that AP reporter Denise Grones and Hattiesburg American reporter Antoinette Konz erase recordings of the justice's remarks. The reporters had not been told before the speech that they could not use tape recorders. When Grones resis ted, the marshal took the digital recorder out of her hands. The reporter then showed Rube how to erase the recording (AP). This issue caused a great deal of controversy at the time, and eventually led to an apology. Nevertheless, it has been reported that Justice Scalia is fond of the Ipad and uses it regularly. Clearly, the position of courts have everywhere have been evolving over the years. A timeline would suggest they have moved from conservative restriction to a more permissive, liberal approach. Standards vary from one jurisdiction and one judge to another. Indeed, other supreme court judges have been equally happy about the result of technology in the courtroom. One of the court's recent appointees, Justice Kagan, has the following to say about the huge amount of legal pleadings that justices have to work their way through: â€Å"At times there are as many as 50 friend-of-the-court briefs for one case. That is on top of the motions submitted directly by the named parties. So there is a lot of reading . . . And you know that's a big part of the job and if a Kindle or an iPad can make it easier, that's terrific" (Beahm). We see that people intimately involved in the judicial system have embraced technology in some ways, while rejecting it in others. We need to find ways to effectively implement technology across the board so long as it is helpful. There are a number of other ways that technology can be useful to those involved in the legal profession. For example, electronic discovery has made life very difficult for many lawyers. The sheer quantity of electronic documents involved in some cases makes it impossible to physically go through every document or email by hand. Special software is required to deal with these large quantities. This software can search through keywords to find important phrases or names. It can dramatically shorten the amount of time required to find what a lawyer is looking for. Both courts and lawyers can work together as pa rtners to develop and implement technologies in the courtroom. One system currently being used is called Digital Evidence Presentation System and allows for electronic, integrated presentation in the courtroom. As one expert says: â€Å"Although attorneys have significant control over the systems in the courtroom, the court has instantaneous override capability. With the touch of a button, a judge can turn off every screen in the courtroom, including the screens in the jury box and the large screen displaying

Multicultural Experience Assignment Example | Topics and Well Written Essays - 750 words

Multicultural Experience - Assignment Example I am a young white woman who has disbelief in religion and God. I visited a black church, Mount Zion Nashville recently in order to learn more about the communication and cultural traits of the African community in America. â€Å"Black Churches are one of the few institutions in America that brings many African-Americans together across demographic and socioeconomic lines†. This paper Analyzes the effect of group influence on the self especially in a multicultural environment taking into the account of my experience at Mount Zion Nashville church. I had the lot of concerns about how the black community may welcome me, before going to their church. Even though slavery is abolished by law in America, still many of the blacks believe that slavery is appearing in America in different forms now. Because of such beliefs blacks normally keeps some reservations while mingling with the whites. So, I visited the black church with a half-hearted mind. But to my utter surprise, the black community in the church welcomed me warmly and many of them gathered around me in order to convey their warm regards. The visit of a young woman like me to their church treated as an honor by many of the blacks. Even though different black ethnic groups were present in the church, none of them try to dominate in any of the church activities even though they are not so outside the walls of the church. Earlier, I thought that the activities in black churches might reflect their crazy lifestyles in the society. But I have noticed that the entire blacks, and a few whites who attended the mass, remain calm and focused in their communication with the God. â€Å"The opportunity of learning from others and viewing the world through the worldview of the other has been an eye-opening experience for† me.

Mexican Cival Rights Essay Example for Free

Mexican Cival Rights Essay George I. Sanchez, Ideology, and Whiteness in the Making of the Mexican American Civil Rights Movement, 1930-1960 By CARLOS K . BLANTON Let us keep in mind that the Mexican-American can easily become the front-line of defense of the civil liberties of ethnic minorities. The racial, cultural, and historical involvements in his case embrace those of all of the other minority groups. Yet, God bless the law, he is white! So, the Mexican-American can be the wedge for the broadening of civil liberties for others (who are not so fortunate as to be white and Christian!). George L Sanchez (1958) By embracing whiteness, Mexican Americans have reinforced the color line that has denied people of African descent full participation in American democracy. In pursuing White rights, Mexican Americans combined Latin American racialism with Anglo racism, and in the process separated themselves and their political agenda from the Black civil rights struggles of the forties and fifties. Neil Foley (1998) 1 HE HISTORY OF RACE AND CIVIL RIGHTS IN THE AMERICAN SoUTH IS complex and exciting. The history of Mexican American civil rights is also promising, particularly so in regard to understanding the role of whiteness. Both selections above, the first from a Mexican American The epigraphs are drawn from George I. Sanchez to Roger N. Baldwin, August 27, 1958, Folder 8, Box 31, George I. Sanchez Papers (Nettie Lee Benson Latin American Collection, University of Texas Libraries, Austin); and Neil Foley, Becoming Hispanic: Mexican Americans and the Faustian Pact with Whiteness, in Foley, ed.. Reflexiones 1997: New Directions In Mexican American Studies (Austin, 1998), 65. The author would like to thank the Journal of Southem Historys six anonymous reviewers and Texas AM Universitys Glasscock Center for Humanities Research for their very helpful intellectual guidance on this essay. MR. BLANTON is an assistant professor of history at Texas AM University. THE JOURNAL OF SOUTHERN HISTORY Volume LXXII, No. 3, August 2006 570 THE JOURNAL OF SOUTHERN HISTORY intellectual of the mid-twentieth century and the last a recently published statement from a historian of race and identity, are nominally about whiteness. But the historical actor and the historian discuss whiteness differently. The quotation from the 1950s advocates exploiting legal whiteness to obtain civil rights for both Mexican Americans and other minority groups. The one from the 1990s views such a strategy as inherently racist. The historical figure writes of Mexican Americans and African Americans cooperating in the pursuit of shared civil rights goals; the historian writes of the absence, the impossibility of cooperation due to Mexican American whiteness. This contrast is worth further consideration. This essay examines the Mexican American civil rights movement by focusing on the work and ideas of George I. Sanchez—a prominent activist and professor of education at the University of Texas—in the 1930s, 1940s, and 1950s. Sanchez is the most significant intellectual of what is commonly referred to as the Mexican American Generation of activists during this period. As a national president of the major Mexican American civil rights organization of the era, however, Sanchezs political influence within the Mexican American community was just as important as his intellectual leadership. Sanchez pondered notions of whiteness and actively employed them, offering an excellent case study of the making of Mexican American civil rights. ^ First, this work examines how Sanchezs civil rights efforts were vitally informed by an ideological perspective that supported gradual, integrationist, liberal reform, a stance that grew out of his activist research on African Americans in the South, Mexican Americans in the Southwest, and Latin Americans in Mexico and Venezuela. This New Deal ideological inheritance shaped Sanchezs contention that Mexican Americans were one minority group among many needing governmental assistance. Second, this liberal ideology gave rise to a nettlesome citizenship dilemma. During the Great Depression and World War II, Mexican Americans strategic emphasis on American citizenship rhetorically placed them shoulder-to-shoulder with other U. S. minority groups. It also marginalized immigrant Mexicans. The significance of ^ For more on Sanehez see Gladys R. Leff, George I. Sanchez: Don Quixote of the Southwest (Ph. D. dissertation. North Texas State University, 1976); James Nelson Mowry, A Study of the Educational Thought and Aetion of George I. Sanehez (Ph. D. dissertation. University of Texas, 1977); Amerieo Paredes, ed.. Humanidad: Essays in Honor of George 1. Sanchez (Los Angeles, 1977); Steven Sehlossman, Self-Evident Remedy? George I. Sanchez, Segregation, and Enduring Dilemmas in Bilingual Education, Teachers College Record, 84 (Summer 1983), 871-907; and Mario T. Garcia, Mexican Americans: Leadership, Ideology, and Identity, J930-1960 (New Haven, 1989), chap. 10. WHITENESS AND MEXICAN AMERICAN CIVIL RIGHTS 571 citizenship was controversial within the Mexican American community and coincided with the emergence of an aggressive phase of Mexican Americans civil rights litigation that implemented a legal strategy based on their whiteness. Third, Sanchezs correspondence with Thurgood Marshall of the National Association for the Advancement of Colored People (NAACP) in the 1940s and 1950s reveals early, fragmentary connections between the Mexican American and African American civil rights movements. All these topics address important interpretive debates about the role of whiteness. This essay fuses two historiographical streams: traditional studies on Mexican American politics and identity and the new whiteness scholarships interpretation of Mexican American civil rights. In traditional works the Mexican American civil rights experience is often examined with little sustained comparison to other civil rights experiences. Conversely, the whiteness scholarship represents a serious attempt at comparative civil rights history. Taking both approaches into account answers the recent call of one scholar for historians to muster even greater historical imagination in conceiving of new histories of civil rights from different perspectives. ^ Traditional research on Mexican Americans in the twentieth century centers on generational lines. From the late nineteenth century to the Great Depression, a large wave of Mexican immigrants, spurred by dislocation in Mexico as well as by economic opportunity in the U. S. , provided low-wage agricultural and industrial labor throughout the Southwest. Their political identity was as Mexicans living abroad, the Mexicanist Generation. They generally paid little heed to American politics and eschewed cultural assimilation, as had earlier Mexicans who forcibly became American citizens as a result of the expansionist wars of the 1830s and 1840s. However, mass violence shortly before World War I, intensifying racial discrimination throughout the early twentieth century, and forced repatriations to Mexico during the Great Depression heralded the rise of a new political ethos. The community had come to believe that its members were endangered by the presumption of foreignness and disloyalty. ^ By the late 1920s younger Charles W. Eagles, Toward New Histories of the Civil Rights Era, Journal of Southern History, 66 (November 2000), 848. See Emilio Zamora, The World of the Mexican Worker in Texas (College Station, Tex., * 1993); George J. Sanchez, Becoming Mexican American: Ethnicity, Culture, and Identity in Chicano Los Angeles, 1900-1945 (New York, 1993); Benjamin Heber Johnson, Revolution in Texas: How a Forgotten Rebellion and Its Bloody Suppression Turned Mexicans into Americans (New Haven, 2003); and Amoldo De Leon, The Tejano Community, 1836-1900 (1982; new ed. , Dallas, 1997). 572 THE JOURNAL OF SOUTHERN HISTORY leaders—the Mexican American Generation—urged adoption of a new strategy of emphasizing American citizenship at all times. They strove to speak English in public and in private settings, stressed education, asked for the gradual reform of discriminatory practices, emulated middle-class life, and exuded patriotism as a loyal, progressive ethnic group. They also desired recognition as ethnic whites, not as racial others. The oldest organization expressing this identity was the League of United Latin American Citizens (LULAC). This ethos of hyphenated Americanism and gradual reform held sway until the late 1960s and early 1970s. ^ Studies of whiteness contribute to historians understanding of the interplay of race, ethnicity, and class by going beyond a black-white binary to seek the subtleties and nuances of race. This new scholarship examines who is considered white and why, traces how the definition of white shifts, unearths how whiteness conditions acts of inclusion and exclusion and how it reinforces and subverts concepts of race, and investigates the psychological and material rewards to be gained by groups that successfully claim whiteness. Class tension, nativism, and racism are connected to a larger whiteness discourse. In other words, this is a new, imaginative way to more broadly interrogate the category of race. Works on whiteness often share a conviction that thoughts or acts capitalizing on whiteness reflect racist power as well as contribute to that insidious powers making. They also generally maintain that notions of race, whether consciously employed or not, divide ethnic and racial minorities from each other and from workingclass whites, groups that would otherwise share class status and political goals. ^ In recent reviews of the state of whiteness history, Eric Amesen, See Mario Garcia, Mexican Americans; George J. Sanchez, Becoming Mexican American; David G. Gutierrez, Walls and Mirrors: Mexican Americans, Mexican Immigrants, and the Politics of Ethnicity (Berkeley, 1995); Ignacio M. Garcia, Viva Kennedy: Mexican Americans in Search of Camelot (College Station, Tex. , 2000); Carl Allsup, The American G. I. Forum: Origins and Evolution (Austin, 1982); Richard A. Garcia, Rise of the Mexican American Middle Class: San Antonio, 1929—1941 (College Station, Tex. , 1991); David Montejano, Anglos and Mexicans in the Making of Texas, 1836-1986 (Austin, 1987), chaps. 12 and 13; Julie Leininger Pyeior, LBJ and Mexican Americans: The Paradox of Power (Austin, 1997); Juan Gomez-Quinones, Chicano Politics: Reality and Promise, 1940-1990 (Albuquerque, 1990); and Guadalupe San Miguel Jr. , Brown, Not White: School Integration and the Chicano Movement in Houston (College Station, Tex. , 2001). ^ David R. Roediger, The Wages of Whiteness: Race and the Making of the American Working Class (1991; rev. ed.. New York, 1999); Roediger, Towards the Abolition of Whiteness: Essays on Race, Politics, and Working Class History (New York, 1994); Matthew Frye Jacobson, Whiteness of a Different Color: European Immigrants and the Alchemy of Race (Cambridge, Mass. , 1998); George Lipsitz, The Possessive Investment in Whiteness: How White People Profit From Identity Politics (Philadelphia, 1998). WHITENESS AND MEXICAN AMERICAN CIVIL RIGHTS. 573 Barbara J. Fields, Peter Kolchin, and Daniel Wickberg offer much criticism. These historians argue that scholars using whiteness as an analytical tool are shoddy in their definitions, read too finely and semantically into documents and literary texts, and privilege discursive moments that have little or nothing to do with actual people or experiences. More specifically, Kolchin and Amesen argue that many studies of whiteness incautiously caricature race as an unchanging, omnipresent, and overly deterministic category. In such works whiteness is portrayed as acting concretely and abstractly with or without historical actors and events. Ironically, studies of whiteness can obscure the exercise of power. Fields explains that studying race and racial identity is more attractive than studying racism because racism exposes the hoUowness of agency and identity . . . [and] it violates the two-sides-to-every-story expectation of symmetry that Americans are peculiarly attached to. ^ Research that applies the idea of whiteness to Mexican American history is sparse and even more recent. Several of these studies focus upon the use of whiteness as a legal strategy while others take a broader approach. ^ Historian Neil Foley offers the most significant and ambitious arguments by moving beyond an analysis of how white people viewed Mexican Americans to look instead at the construction of whiteness in the Mexican American mind. He shifts the perspective from external whiteness to internal whiteness and argues that Mexican Americans entered into a Faustian Pact by embracing racism toward African Americans in the course of trying to avoid de jure discrimination. Foley claims that Mexican Americans consciously curried the favor of racist whites: In pursuing White rights, Mexican Americans Peter Kolchin, Whiteness Studies: The New History of Race in America, Journal of American History, 89 (June 2002), 154-73; Eric Arnesen, Whiteness and the Historians Imagination, International Labor and Working-Class History, 60 (Fall 2001), 3-32; Barbara J. Fields, Whiteness, Racism, and Identity, International Labor and Working-Class History, 60 (Fall 2001), 48-56 (quotations on p.48); Daniel Wickberg, Heterosexual White Male; Some Recent Inversions in American Cultural History, Journal of American History, 92 (June 2005), 136-57. *Ian F. Haney Lopez, White By Law: The Legal Construction of Race (New York, 1996); Neil Foley, The White Scourge: Mexicans, Blacks, and Poor Whites in Texas Cotton Culture (Berkeley, 1997); Steven Harmon Wilson, The Rise of Judicial Management in the U. S. District Court, Southern District of Texas, 1955-2000 (Athens, Ga., 2002); Wilson, Brown over Other White; Mexican Americans Legal Arguments and Litigation Strategy in School Desegregation Lawsuits, Law and History Review, 21 (Spring 2003), 145-94; Clare Sheridan, Another White Race: Mexican Americans and the Paradox of Whiteness in Jury Selection, Law and History Review, 21 (Spring 2003), 109^14; Ariela J. Gross, Texas Mexicans and the Polities of Whiteness, Law and History Review, 21 (Spring 2003), 195-205; Carlos Kevin Blanton, The Strange Career of Bilingual Education in Texas, 1836-1981 (College Station, Tex., 2004); Patrick J. Carroll, Felix Longorias Wake: Bereavement, Racism, and the Rise of Mexican American Activism (Austin, 2003). 574 THE JOURNAL OF SOUTHERN HISTORY combined Latin American racialism with Anglo racism, and in the process separated themselves and their political agenda from the Black civil rights struggles of the forties and fifties. ^ Missing from such interpretations of whitenesss meaning to Mexican Americans is George I. Sanchezs making of Mexican American civil rights. Analyzing Sanchezs views is an excellent test of Foleys interpretation because Sanchezs use of the category of whiteness was sophisticated, deliberate, reflective, and connected to issues and events. An internationalist, multiculturalist, and integrationist ideology shaped by New Deal experiences in the American Southwest, the American South, and Latin America informed George L Sanchezs civil rights activism and scholarship. Sanchez regarded Mexican Americans as one of many American minority groups suffering racial, ethnic, and religious bigotry. Though Sanchez regarded Mexican Americans racial status as white, he also held that they were a minority group that experienced systematic and racialized oppression. Sanchezs articulation of whiteness was qualified by an anti-racist ideological worldview and supports Eric Amesens criticism of overreaching by whiteness scholars who appreciate neither ambiguity nor counter-discourses of race, the recognition of which would cast doubt on their bold claims. Â ° Sanchez was very much a New Deal service intellectual who utilized academic research in an attempt to progressively transform society. The term service intellectual is an appropriate description of Sanchez, who propagated his civil rights activism through academic research with governmental agencies (the Texas State Department of Education, the New Mexico State Department of Education, the U. S. Bureau of Indian Affairs, and the Office of the Coordinator of Inter-American Affairs) and national philanthropic organizations (the General Education Board, the Julius Rosenwald Eund, the Carnegie Foundation, and the Marshall Civil Liberties Trust). The pinnacle of Sanchezs scholarly contribution as a service intellectual was his evocative 1940 portrayal of rural New Mexican poverty and segregation in The Forgotten People: A Study of New Mexicans. Foley, Becoming Hispanic, 53-70 (quotation on p. 65); Foley, Partly Colored or Other White: Mexican Americans and Their Problem with the Color Line, in Stephanie Cole and Alison M. Parker, eds. , Beyond Black and White: Race, Ethnicity, and Gender in the U. S. South and Southwest (College Station, Tex. , 2004), 123-44. For an older whiteness study that discusses the external imposition of racial concepts on Mexican Americans and other groups, see Roediger, Towards the Abolition of Whiteness, chap. 10. Amesen, Whiteness and the Historians Imagination, 24. Richard S. Kirkendall, Social Scientists and Farm Politics in the Age of Roosevelt WHITENESS AND MEXICAN AMERICAN CIVIL RIGHTS 575 Sanchez particularly sought to transform society through the field of education. In the early 1930s he published blistering critiques of the shoddiness of IQ tests conducted on Mexican American children. Mexican Americans bad just challenged separate schools in Texas and California and were told by the courts that because they were technically white, racial segregation was illegal; however, the courts then claimed that pedagogical segregation based upon intellectual or linguistic deficiency was permissible. In challenging racist IQ science, Sanchez essentially advocated integration. ^ A decade of service intellectual work came together for Sanchez in Forgotten People. He called for a comprehensive federal and state program to uplift downtrodden Hispanic New Mexicans: Remedial measures will not solve the problem piecemeal. Poverty, illiteracy, and ill-health are merely symptoms. If education is to get at the root of the problem schools must go beyond subject-matter instruction. . . . The curriculum of the educational agencies becomes, then, the magna carta of social and economic rehabilitation; the teacher, the advance agent of a new social order. ^ Sanchez regarded Mexican Americans as similar to Japanese Americans, Jewish Americans, and African Americans. To Sanchez these were all minority groups that endured varying levels of discrimination by white, Anglo-Saxon, Protestant America. Sanchez was uninterested in divining a hierarchy of racial victimization; instead, he spent considerable energy on pondering ways for these groups to get the federal government, in New Deal fashion, to help alleviate their plight. Even in the mid-1960s when many Mexican Americans had come to favor a separate racial identity over an ethnic one, Sanchez still conceived of Mexican Americans as a cultural group, ignoring concepts of race altogether unless discussing racial discrimination. ^ Sanchez engaged the struggles of other minority groups and linked them to Mexican American activism. In 1948, for example, Sanchez (Columbia, Mo. , 1966), 1-6; George I. Sanchez, Forgotten People: A Study of New Mexicans (1940; reprint, Albuquerque, 1996), xvi-xvii. Befitting the service intellectual ideal of freely diffusing knowledge, the Carnegie Foundation gave the book away. Carnegie provided four thousand dollars for Sanchezs research at the same time it supported work on a much larger study on African Americans—Gunnar Myrdals classic An American Dilemma: The Negro Problem and Modern Democracy (New York, 1944). ^ Carlos Kevin Blanton, From Intellectual Deficiency to Cultural Deficiency: Mexican Americans, Testing, and Public School Policy in the American Southwest, 1920-1940, Pacific Historical Review, 72 (February 2003), 56-61 (quotations on p. 60). Sanchez, Forgotten People, 86. George I. Sanchez, History, Culture, and Education, in Julian Samora, ed.. La Raza: Forgotten Americans (Notre Dame, 1966), 1-26; Mario Garcia, Mexican Americans, 267-68. 576 THE JOURNAL OF SOUTHERN HISTORY published through the United States Indian Service a government study on Navajo problems called The People: A Study of the Navajos. ^^ In 1937-1938 Sanchez transferred his New Deal, reformist ideology across borders as a Latin American education expert with a prestigious administrative post in Venezuelas national government. Writing to Edwin R. Embree, director of the Julius Rosenwald Fund, Sanchez described his work as the chief coordinator of the countrys teachertraining program in familiar New Deal terms: the hardest task is breaking down social prejudices, traditional apathy, obstructive habits (political and personal) and in-bred aimlessness. His first program report was appropriately titled Release from Tyranny. ^ During World War II Sanchez was appointed to the Office of the Coordinator of Inter-American Affairs under Nelson A. Rockefeller, where he continued work on Latin American teacher-training programs as part of the war effort. Sanchez was deeply committed to progressive reform in Latin America that would lift educational and living standards. ^ Sanchez also took on African American issues. From 1935 to 1937 he worked as a staff member with the Chicago-based Julius Rosenwald Eund. This philanthropic organization was concerned with African American rural education in the South, and in this capacity Sanchez collaborated with Eisk Universitys future president, the eminent sociologist Charles S. Johnson, on preparing the massive Compendium on Southem Rural Life. Sanchez was listed in the studys budget as the highest-paid researcher for the 1936-1937 academic year with a $4,500 salary and a $2,000 travel budget. Sanchezs work with the Rosenwald Eund also involved numerous activities beyond his role as the groups pedagogical expert. In November and December 1936 he lobbied the Louisiana State Department of Education on behalf of a Dr. Sanchez Seeks Fulfillment of U. S. Promise to Navajos, Austin Daily Texan, November 16, 1946, in George I. Sanchez Vertical File (Center for American History, Austin, Texas; hereinafter this collection will be cited as Sanchez Vertical File and this repository as Center for American History); George I. Sanchez, The People: A Study of the Navajos ([Washington, D. C], 1948). ^ G. I. Sanchez to Edwin R. Embree, October 17, 1937, Folder 4, Box 127, Julius Rosenwald Fund Archives (Special Collections, John Hope and Aurelia Franklin Library, Fisk University, Nashville, Tennessee; hereinafter this collection will be cited as Rosenwald Fund Archives and this repository as Franklin Library) (quotation); Embree to Sanchez, October 29, 1937, ibid. Sanchezs work for the Instituto Pedagogico occurred just after its creation in 1936 during a brief liberal phase of Venezuelan politics. For more on its creation, see Judith Ewell, Venezuela: A Century of Change (Stanford, 1984), 75. Dave Cheavens, Soft-Spoken UT Professor Loaned to Coordinator of Latin-American Affairs, Austin Statesman, December 3, 1943, in Sanchez Vertical File; Texan Will Direct Training of Teachers, Dallas Morning News, November 3, 1943, ibid. ; George I. Sanchez, Mexican Education As It Looks Today, Nations Schools, 32 (September 1943), 23, ibid. ; George I. Sanchez, Mexico: A Revolution by Education (New York, 1936). WHITENESS AND MEXICAN AMERICAN CIVIL RIGHTS 511 Rosenwald teacher-training program and the broader issue of school equalization. Equalization had been the primary avenue of African American activism that culminated with the Gaines v. Canada decision of 1938, which mandated that the University of Missouri either admit a black law student or create a separate, equal law school for African Americans. Sanchez also lobbied in Washington, D. C. , in February 1937, consulting with the Progressive Education Association and various government agencies on Rosenwald projects. ^ As one of his duties on the compendium project, Sanchez studied rote learning for rural African American children who lived in homes lacking in formal education. This study was inspired by Charles Johnsons mentor at the University of Chicago, Robert E. Park. Johnson, Sanchez, and other young researchers such as famed historian Horace Mann Bond were to look at ways to educate populations handicapped by the lack of books and a tradition of formal education in the home. This venture was affiliated with the Tennessee Valley Authority and chiefly concerned with raising the cultural level of poor, rural African Americans more effectively than standard textbooks and pedagogies developed for privileged students in other parts of the country. The project aimed to equip teachers to integrate the knowledge which the school seeks to inculcate with the experiences of its pupils and with the tradition of the local community. Sanchezs comparable work with bilingual education in New Mexico and Latin America fit well within the scope of the new undertaking. ^ Sanchezs biggest project with the Rosenwald Fund was creating a well-recognized teacher-training program at the Louisiana Negro Normal and Industrial Institute at Grambling. Charles S. Johnson later described this Grambling teacher-training program as among the most progressive of the community-centered programs for the education of teachers in the country. He praised the Grambling endeavor for offering African American teachers opportunities for the development of creativeness and inventiveness in recognizing and solving * Charles S. Johnson to Edwin R. Embree, October 16, 1936, Folder 1, Box 333, Rosenwald Fund Archives; Embree to Johnson, October 23, 1936, and enclosed budget manuscripts Supplementary Budget on Rural Education Compendium and Rural School Exploration, Tentative Budget 1936-37, ibid. ; undated project time sheet [October 7, 1936 to April 27, 1937], Folder 3, Box 127, ibid. ; Numan V. Bartley, The New South, 1945-1980 (Baton Rouge, 1995), 15; Compendium on Southern Rural Life with Reference to the Problems of the Common School (9 vols. ; [Chicago? ], 1936). Charles S. Johnson to Edwin R. Embree, January 21, February 25, 1937, Folder 5, Box 335, Rosenwald Fund Archives; Johnson to Dorothy Elvidge, June 23, 1937, and study proposal by Robert E. Park, Memorandum on Rote Learning Studies, March 3, 1937, pp. 2 (first and second quotations), 3 (third quotation), ibid. Sanchez left shortly after the project began. 578 THE JOURNAL OF SOUTHERN HISTORY the problems to be found in rural communities, homes, and schools . . . .^Â ° Sanchez oversaw this project from its inception in September 1936 until he left for Venezuela in the middle of 1937. He set up the curriculum, the budgets, the specialized staff (nurses, agricultural instructors, home economists, and rural school supervisors), and equipment (the laboratory school and a bus for inspections). These duties involved close coordination with Grambling administrators, Louisiana health officials, and state education and agriculture bureaucrats. Difficulties arose due to Sanchezs departure. One Rosenwald employee summarized the programs problems, As long as George [Sanchez] was here he was the individual who translated that philosophy to the people at Grambling, and I am sure that you agree with me that he could do it far more effectively than the rest of us. But now that Sanchez [sic] is not here it is the job of the president of the institution to do both this interpretation and this stimulation. . . . I do not believe [President] Jones knows them. ^ Fisks Charles S. Johnson was elite company for Sanchez. Johnsons devastating attacks on southem sharecropping influenced public policy and garnered praise from President Franklin D. Roosevelt. He and others spurred the creation of Roosevelts Black Cabinet. ^^ Sanchez practiced a similar combination of academic research and social activism. When he began his work at Grambling he had recently lost his position in the New Mexico State Department of Education due to his pointed advocacy of reform as well as his penchant for hard-hitting, publicly funded academic research on controversial topics such as the segregation of Mexican Americans in schools. He had long sparked controversy with his research on racial issues. What especially limited ^Â ° Charles S. Johnson, Section 8—The Negro Public Schools, in Louisiana Educational Survey (7 vols, in 8; Baton Rouge, 1942), IV, 216 (first quotation), 185 (second quotation). A copy of this volume is in Folder 5, Box 182, Charles Spurgeon Johnson Papers (Franklin Library). ^ A. C. Lewis to G. I. Sanchez, October 14, 1936, Folder 13, Box 207, Rosenwald Fund Archives; Sanchez to Dr. R. W. Todd, September 28, 1936, ibid. \ Sanchez to Miss Clyde Mobley, September 28, 1936, ibid. ; Sanchez to J. W. Bateman, September 28, 1936, ibid. \ Sanchez to Lewis, September 28, 1936, ibid. ; Edwin R. Embree to Lewis, September 29, 1936, ibid. ; Sanchez to Lewis, September 30, 1936, ibid. ; Dorothy A. Elvidge to Lewis, November 27, 1936, ibid. ; Lewis to Sanchez, July 9, 1937, Folder 14, Box 207, ibid.; i. C. Dixon to Lewis, March 17, 1938, Folder 15, Box 207, ibid, (quotation on p. 2); Sanchez, The Rural Normal Schools TeacherEducation Program Involves . . . , September 17, 1936, Folder 16, Box 207, ibid. ; Sanchez, Suggested Budget—Grambling, April 9, 1937, ibid. ; Sanchez, Recommendations, December 9, 1936, ibid. ^^ John Egerton, Speak Now Against the Day: The Generation Before the Civil Rights Movement in the South (New York, 1994), 91-92; George Brown Tindall, The Emergence of the New South, ? 913-1945 (Baton Rouge, 1967), 543, 544 (quotation); Matthew William Dunne, Next Steps: Charles S. Johnson and Southem Liberalism, Journal of Negro History, 83 (Winter 1998), 10-11. WHITENESS AND MEXICAN AMERICAN CIVIL RIGHTS 579 Sanchezs future in New Mexico was a 1933 furor over his distribution of another scholars Thurstone scale (a psychometric technique developed in the 1920s) on racial attitudes to pupils in New Mexicos public schools. Governor Arthur Seligman publicly demanded that Sanchez be ousted and that the General Education Board (GEB) cancel the grant funding his position in the state bureaucracy. Partly due to the influence of New Mexicos U. S. senator Bronson Cutting, a progressive Republican champion of Mexican Americans, Sanchez survived an ugly public hearing that resulted in the resignation of the University of New Mexico faculty member who devised the scale. Nevertheless, the incident severely constrained Sanchezs future in the New Mexican educational and political arena. ^^ But Sanchez was not pushed into African American education simply out of desperation for employment. He appreciated the opportunities that the Rosenwald Fund provided to broaden his activism as a service intellectual beyond the Southwest. He was direct about this to his most ardent supporter. President James F. Zimmerman of the University of New Mexico: Im sorry the [Rosenwald] Fund is virtually prohibited from extending its interests and experiments into the Southwest. This is the only disappointment I feel in connection with my present work. I feel it keenly, however, as you know how deeply I am bound up with that area and its peoples. At the same time, though, being here has given me a wider viewpoint and experience that may well be directed at my first love sometime. Zimmerman was disappointed; he had groomed Sanchez for a faculty and administrative future at the University of New Mexico. Despite the uproar in 1933 Sanchezs talents were in high demand, however, as GEB agent Leo Favrot and Rosenwald director Edwin Embree coordinated which agency would carry Sanchezs salary with the New Mexico State Department of Education in early 1935 (GEB) and during a yearlong research project on Mexican higher education from 1935 to the middle of 1936 (Rosenwald Fund) until he joined the staff of the Rosenwald Fund on a full-time basis for his work at Grambling. ^* ^^ G. I. Sanchez to Leo M. Favrot, April 27 and May 11, 1933, Folder 900, Box 100, G.

Social Reproduction Essay -- Canadian Government, Capitalism

The growth of capitalism and the decline in government help with social reproduction along with cuts to social serves within Canada have lead to many issues within the privet sector. These cut backs leave families struggling, and while the family struggles the main care taker who is majority of the time the women, they are also the ones struggling with more responsibilities in the privet sphere of life. However, the home is not the only place that deteriorates when cut backs take place. When the individual struggles in the privet sector, the public sector along with employment and work take a toll as well. While the women tend to be the care givers of the home they skill contribute to a capitalist society meaning they are now working two jobs. They take care of the home, and still tend to a job in the public aspect of life. Until improvements are made in both privet and public sectors through social reproduction many areas in Canada will continue to suffer. The book Social Reproduct ion focuses on specific issues that are happening in Canada. Chapter four is specific to the topic on social reproduction and the issues that it causes to Canadian individuals, along with how unions are working to change the government to better help the people of Canada. I will focus on how chapter four entitled Bargaining for Collective Responsibility for Social Reproduction by Alice Wolff, deals with the material at hand and also if I believe Wolff presents the material in a well mannered argument. I will start off by looking at what issues Wolff presents in this chapter, and move on to the difficulties it is causing individuals, while finishing off with a critique of the chapter. Social reproduction to Alice Wolff is an important issue that is ... ... would have brought a real life situation at hand for those who are reading about this topic for the first time. I enjoy how the entire chapter focuses specifically within Canada which gives us as Canadians who are reading it a realisation of where Canada stands on this issues and where we possibly need to go. Another area I think she could have spent some more research on would have been how social reproduction differs between the different cultures we have represented in Canada. Canada especially has many different cultures and nationalities represented throughout; it would have been interesting to see how things differed from each culture. Overall I believe Wolff did a great job with the topic and I agree with what she has stated and how it is important to get this message out to others so that possibly soon we can find a way to help relive work-life tensions.

Most Power In Modern Western Societies Essay

Assess the view that most power in modern western societies is held by people who have not been democratically elected. It is believed that people who have not been democratically elected hold most power in western societys, however how true is this? Throughout history people have been born into positions of power, if your father was a lord, you would most likely also be a lord. Marxists believe that this division of power still exist in modern society today. Unlike Functionalists who believe in a fair merocratic society, Marxists believe that the social class you are born in is where you’ll most likely end up staying. However this theory is critised for being far to deterministic as many people from the working classes are able to make there way up the social ladder. Marxists believe that everything designed in society is there to favour the bourgeois, from the State to the legal system. Althusser believes that economic determinism needs to be rejected. According to Althusser, societies comprise of 3 levels: The economic, the political and the ideological. Although the economy is ‘determinant’ in the last instance’, the political and ideological levels are not mere reflections of the economy but have ‘relative autonomy’ and don’t have effects on the economy. Stephen Lukes identified three ways in which sociologists have approached the study of power. Each involves studying a different dimension or ‘face’ of power. He argues that an understanding of power requires an awareness of all three faces. The first face of power is success in decision-making (this has been adopted by pluralists). The second face of power is managing the agenda and the third is manipulation the views of others. Weber is usually considered the starting point in the study of power. Unlike Marx he believed that power was not automatically linked to ownership of wealth. Ordinary people with little or no money could exercise power by joining parties, not only political parties but pressure groups. He defined power as ‘the chance of a man or a number of men to realise their own will in a communal action even against the resistance of others’. Weber defined 3 types of authority: Charismatic Authority (The type of authority based on charisma), Traditional Authority (The type of power based on established customs) and Rational-legal authority (The type of authority devised from impersonal rules). Weber saw rational-legal authority as the dominant form of authority in modern societies, not only armies but also political, religious and educational organisations. He believed that they were organised on bureaucratic lines with structures of authority and rational rules designed to ensure that power is used to achieve the goals of organisations. Weber’s work has been critised as the types of authority he described are ideal types. Ideal is a model of the purest type and in reality ideal types do not exists. Political scientist Robert Dahl developed Weber’s ideas into what has become classical pluralism. Classical pluralism represents the way in which many people believe liberal democrats such as the UK and USA operate. It suggests that such political systems are truly democratic and that power is distributed throughout society. Classical pluralists except that they have very little direct involvement in political decision-making however this doesn’t mean that these societies are undemocratic. They are seen as representative democracies where citizens elect political leaders who are charged with carrying out the wishes of those who elected them. Pluralists see political parties and pressure groups as crucial for the democratic process, as through political parties we seek to gain power by putting up candidates into elections with the aim of forming a government and through pressure groups seek to influence those in government to follow policies which individual groups favour. Robert Dahl conducted a study of local government in New Haven and found that no-one group is seen to actually dominate the decision-making; power is therefore shared among a range of groups. The idea is rejected by pluralists that democracy is possible in a one-party state, since there must be opposition parties and a range of pressure groups to represent the views of those who disagree with the governing party. Pluralists claim to have solid evidence for their view of the distribution of power from case studies of decision-making on a local level (Dahl) and at a national level (Hewitt) There have been many criticisms of pluralism, first of all it is believed that measuring power by examining decisions ignores non-decision making. It also ignores the fact that that people may accept and even welcome decisions which are against their interests and its is shown that some groups exercise more power than others and so is an unequal representation of interests and many interests may not be represented at all. Marxists also argue that the pluralists’ focus on the decisions taken by local and national governments ignores the possibility that the real centre of power is elsewhere. As a result of the criticisms of pluralism many classical pluralism supporters modified or changed their positions. Robert Dahl has accepted that the unequal distribution of wealth and income in the USA makes equal political influence impossible. David Marsh describes this position as elite pluralism. Elite Pluralists accept that many political interests are under represented. However, since they constitute a significant number of voters the government will eventually be forced to take note of their interests. It is accepted that some groups have greater access to the government than others, however they point out that governments must minimise conflict by consulting with a range of interest groups. Elite Pluralism answers some of the criticisms of classical pluralism. It acknowledges the existence of under-represented interests and accepts that power is to some degree concentrated in the hands of a few elites. However there are also criticisms of this theory. It’s said to undermine the pluralist position that power is widely dispersed in capitalist societies. Also the assumption that elites or leaders act in the interests of their members is also open to question. Finally Elite pluralism like Classical pluralism fails to take into account the third face of power the ability to shape and manipulate the desires of others. Elite theorists reject the pluralist view that power in liberal democracies is widely dispersed. They argue that power is concentrated in the hands of a small minority called the elite. The elite theory was originally developed as a response to Marxism, which claimed that democracy was only possible under communism. They asserted that rule by elites was inevitable in all societies, even communist ones. However not all views of elite theory are so pessimistic. Many modern elite theorists argue that rule by elites results from the way in which societies are organised, rather than being n inevitable feature of human society. Vilfredo Pareto and Gaetano Mosca rejected the idea that real democracy was possible in either liberal democracies or under communism. They argue that in all societies and elite, a minority of individuals with superior personal qualities, would monopolise power. While Pareto and Mosca saw the elite as an inevitable thing Wright Mills saw the elite rule as a result of the structure of society which allowed a disproportionate amount of power to be held by a few individuals who occupied what he called the command posts. These individuals are called the power elite. He identified 3 key institutions as the centres of power, The Federal government, the major corporations and the military. Mills believed that these 3 elites are closely related because of their similar origins, education and kinship and because there interests are in twined. Critics of Mills argue that he only showed that the elites in the USA have potential for control, he failed to show that they had actual hold control. In addition pluralist disagree with this theory and argue that there are many other elites such as pressure group leaders, religious, trade unions and so on, who can provide a counterbalance to these more powerful elites. Marxists also reject the notion of a power elite, arguing that real power in capitalist societies derives not from positions in institutions but from ownership and control of the means of production. In conclusion it seems as though there are many different approaches to the view on power in society, whether the people are in power because they were democratically elected or whether there, there because they were born into it. However many of the views tend to ignore the problems with black people and women. Why are there only 25% of women in parliament and why are there only 6 black MP’s? Although functionalist believe we live in a fair merocratic society it’s becoming fairly obvious that we don’t. Though many views have may have some truth behind them it extremely hard say that one person’s opinion of power in society is wrong. It really depends if you believe in the power of the people or not.

Development Of Mathematical Understanding Education Essay

1.0 Introduction1.1 What is seminal fluid ; how it is made and what is it composed ofSeminal fluid is a substance found in many male species sexual generative secretory organs. Semen is the nebulose white organic structure fluid that is emitted from the urethra of the phallus during interjection. It is made up of a assortment of molecules and cells such as leukocytes, proteolytic and other enzymes every bit good as fruit sugar and is a medium for elimination and transit of sperm cell. In the human male species, production occurs in the prostate secretory organs and gonadal which are slightly thankless sex accoutrement secretory organs until they malfunction or cease to work at all with the prevailing effects being drastically lower the rates of birthrate. Semen is composed largely of H2O, likely about 90 % by weight. After that, it ‘s a mixture of amino acids ( proteins ) , minerals, saccharides ( sugars ) , and a little figure of other things. Semen has a basic pH degree intending it is the antonym of acidic by nature – this is to antagonize and neutralize the vagina ‘s acidic pH and increase the sperm cell ‘s opportunities of endurance. Beginning: ( hypertext transfer protocol: //www.orgasmpower.net/semen-production.html ) Besides sperm, seeds is made of secernments from the seven lower urinary piece of land constructions. These constructions include: seminal cysts ( which account for 60-70 % of the fluid ) , prostatic secretory organ ( which accounts for 20-30 % ) and the staying per centum is shared by the epididymis, vessel deferens, ampullae of the vessel, Cowper ‘s secretory organs and secretory organs of Littre. Semen itself has high concentrations of K, Zn, citric acid, fructose, phosphorylcholine, spermine, free amino acids, prostaglandins and enzymes, which nourish and protect the sperm. Beginning: ( hypertext transfer protocol: //www.menstuff.org/issues/byissue/semen.html # funfacts )SourceA : hypertext transfer protocol: //www.proceptin.com/phc/sperm-cell.phpMain Production sitesASeminal fluid is largely produced in four topographic points ; in the seminal cysts, the male testicles, the prostate secretory organ and in the Cowper ‘s secretory organs. The Seminal Vesicles: This is where the milklike white protein based substance ( semenogelin I and II ) that seeds largely consists of is chiefly produced ( Ulvsback et al. 1992 ) .A These semenogelins interact with each other and coagulumate after interjection ( Aumuller and Riva 1992 ) . ( Spermatozoa wellness depends on this substance for foods which they will utilize to prolong them on their manner to fertilise the female ova.A This fluid is besides alkalic in nature and helps to neutralize the acidic conditions within the female generative system. The Male Testes: This is the organ where the production of sperm cells occurs. Spermatozoa cells are cultivated here until they mature. After that they are so stored in the Ampulla where they wait to be ejaculated out of the organic structure. They are besides protected by glycocalyx secernments from the testicle, motorial canals, epididymis and accessary secretory organs ( Schroeter et al. 1999 ) . The Prostate Gland: The prostate secretory organ besides produces an alkalic solution that acts as a protective barrier for the sperm cells against the sourness of the female sexual generative environment. The pH of the fluid is maintained above 7 by the action of prostate prostasomes ( et Al. 1999 ) . The fluid produced, is a protastic serine peptidase and helps the liquification of the semenogelins clot ( Peter et al. 1998 ) The prostate is besides an of import beginning of superoxide anion aggregators in worlds ( Gavella et al. 1996 ) A The Cowper ‘s Glands: These secretory organs produce a clear slippery liquid besides known as pre-cum which is excreted during arousal or sexual stimulation.A It is produced by the Cowper ‘s or bulbouretheral secretory organs and creates a medium for which sperm can be transported and swim in through the male generative piece of land and acts as a lubricator to cut down clash during sexual activity.Seminal fluid Composition and mapsSemens contains citric acid, free amino acids, fructose, enzymes, phosphorylcholine, prostaglandin, K, and Zn. The mean volume of seeds produced in a individual interjection varies from 2 to 5 milliliter. The seeds from a individual interjection may incorporate between 40 million and 600 million sperm, depending on the volume of the semen and the length of clip since the last interjection. Samples used for medical intents are obtained by holding the giver masturbate. If a sample can non be produced without sexual intercourse, non-reactive rub bers can be used to roll up the seeds. The procedure of secernment of seminal fluid in male mammals is finally under androgenic and estrogenic control, with a intensifying consequence happening between these two types of gonadal steroids ( Reaside et al. 1999 ) . Oxytocin secreted by the posterior hypophysis, lactogenic hormone secreted by the front tooth can besides command activity of sexual accoutrement secretory organs in mammals ( Gemmell and Sernia 1989 ; Kumar and Farooq 1994 ; Gonzalez et Al. 1994 ; Watson et Al. 1999 ) . There is a general consensus that the three major functional facets of seminal fluid are, its function in sperm competition, its map to help birthrate and in conclusion its function in the transmittal of venereal diseases. This is due to the composing of the seminal fluid being attributed to the secernment of many different tissues and that are under the control of a assortment of different constituents of the neuroendocrine system. The functionality of the seminal fluid constituents may be duplicated but in the procedure they will synergize and complement each other. As an illustration, increased immunosuppressive action of the seminal fluid on the female generative piece of land aimed at increasing sperm viability may besides ease the transmittal of sexually catching pathogens, therefore increasing the choice force per unit area on females to get the better of immunosuppression. ( Birkhead et al. 1993 ) . Seminal fluid is responsible for sperm capacitation for the ability to fertilise female ‘s egg cell. Besides some proteins secreted by male accessary secretory organs have been implicated in the procedure of sperm capacitation. ( Gillott 1996 ) . Structural proteins of the spermatophre that are secreted by sex accoutrement secretory organs, such as trehalase and sugars such as trehalose, may play a function in the activation of sperm within the female ‘s Bursa copulatrix ( Yaginuma et al. 1996 ) . The procedure of capacitation of sperm involves the acquisition of a coat of saccharides that from the glycocalyx ( Schroeter et al. 1999 ) . Most of those saccharides are attached to proteins organizing glycoprotein composites that are produced by accessary secretory organs and other tissues of the male generative system. Acquisition of a glycocalyx is indispensable in some taxa for the attainment of full capacitation of sperm and fertilizing ability. ( Schroeter et al.1999 ) . In work forces, accessary secretory organs secrete 5†²-necleotidase, an enzyme that hydrolyses nuleotides into phosphate and nucleosides, which may play a function in the alteration of sperm surface during capacitation ( Konrad et al. 1998 ) . Capacitation in human sperm is besides increased by tripeptide amides found in seminal plasma ( Khan et al. 1992 ) . Other endocrines and substances are besides found in seminal fluid such as, edothelin which facilitates transit of sperm and besides heighten sperm motions through the womb by myometrial contraction stimulation ( casey et Al. 1992 ) . The same is the instance with bradykinin which helps transporation by its smooth musculus loosen uping belongingss ( Charlse Worth et Al. 1999 ) .1.2 Which metals have been found in seminal fluid and why?The interaction between metals and biomeolecules are important and major in biological categorizations. The metals preponderantly determine many metabolic reactions and fewer of them cat as the aetiological agents in environmentally induced neurological upsets. Aluminum, Zinc, Mg, Ca and lead hints can be round in seminal fluid in edge ionic signifier. These metals are of course found in minor hints and have an array of effects and utilizations and are collected in different avenues. It has been suggested that heavy metals may hold inauspicious impacts on male generative wellness [ Benoff S, Jacob A, Hurley, 2000 ; Telisman.S et Al, 2000 ] even at comparatively low exposures [ ; Telisman.S et Al 2007 ] . The heavy metals may adversely impact the male generative system, either by bring oning hypothalamic-pituitary axis break or by direct seeds quality decrease during spermatogenesis [ Wyrobek AJ et Al 1997 ] . Several metals are suspected endocrinal disruptor compounds and/or generative poisons such as chiefly lead ( Pb ) and Cd ( Cd ) . Human populations could be exposed to heavy metals at hint concentrations normally through consumption of contaminated H2O and nutrient or contact with contaminated air or dirt. Blood and seminal Pb concentrations every bit good as seeds quality among both occupationally exposed and unexposed work forces has been studied and concluded to hold a important opposite association [ De Rosa M et Al 2003 ; JurasoviA†¡ J et Al 2004 ; Telisman.S et Al, 2000, Eibensteiner L et Al 2005 ] . Cadmium has been connected to impaired seeds quality and altered hormonal degrees in work forces [ Pant N et Al 2003, Telisman.S et Al, 2000, Akinloye O et Al 2006 ; Zeng X et Al 2002 ] . Although Cd has been considered as an hormone disruptor, the mechanisms involved are non yet clear [ Henson MC et Al 2004 ] . Mercury ( Hg ) has been found to bring on abnormalcies in sperm morphology and motility in animate being vito surveies [ Mohamed MK et Al, 1987 ; Rao Mv et Al, 1989 ] . Choy et Al. [ Choy CM et Al, 2002 ] described Hg concentrations in seminal fluid and sperm abnormalcies in subfertile males. But contrary to that, Meeker et Al. [ Meeker JD et Al 2008 ] discounted that cl aim after happening no relationship between seeds quality and Hg degrees in blood. hypertext transfer protocol: //www.ehjournal.net/content/10/1/6ZincThe intent of seminal plasma Zn on sperm maps has been a subject of involvement to many scientists. Zinc organs from the prostate is good established and found in seminal plasma as Zn citrate or edge to glycoprotein derived from seminal cysts ( Marmar et al. 1975, Arver 1982, Arver and Eliasson 1982 ; Kavanagh 1983 ; Lafond et Al. 1986 ) has been recognised since 1921 ( Bertrand and Vladesco, 1921 ) It has been found that Zn is indispensable to the decondensation of chromatin at the right clip every bit good as stableness. ( kvist et Al. 1987,1988 ) . Zinc is thought to play a function as a refinisher of an built-in mechanism for head-tail withdrawal of sperm cell ( Bjorndahl and Kvist, 1982 ) . The entire benefit or injury of Zn is vague because it has been reported that high degrees of Zn concentrations have been related to lowered sperm mortality, whilst others have reported that high Zn content in seminal plasma to be associated with a high grade of sperm cell motility ( Stankovic and Mikac-Devic, 1976 ; Caldamone et Al. 1979 ) . Zinc lack is associated with hypogonadism and deficient development of secondary sex features in worlds ( Prasad, 1991 ) . Besides high Zn concentrations have been reported to deject oxygen consumption in the sperm cell ( Huacuja et al. , 1973 ; Foresta et al. , 1990 ) , and albumin-induced acrosome reaction ( Foresta et al. , 1990 ) . Zinc has besides been found to be responsible for the antibacterial activity of seminal plasma ( Fair et al. 1976 ) and decreases in degrees are seen in prostate infections ( Marmar et al. 1975, Abyholm et Al. 1981 ; Papadimas et Al. 1983 ) . The entire Zn content in seeds from mammals was found to be at high degrees, and Zn has been found to be critical to spermatogenesis. But Zn can besides do wasting of the seminiferous tubules in the rat and ensuing in the failure in spermatogenesis ( Millar et al. , 1958 ; Underwood, 1977 ; Endre et al. , 1990 ) . Besides, high concentrations of Zinc have been reported to deject oxygen consumption in the sperm cell ( Huacuja et al. , 1973 ; Foresta et al. , 1990 ) , and albumin-induced acrosome reaction ( Foresta et al. , 1990 ) . Consiquently there have been conflicting studies on the consequence of seminal Zn on sperm motility ( Stankovic and Mikac-Devic, 1976 ; Danscher et al. , 1978 ; Caldamone et al. , 1979 ; Lewis-Jones et al. , 1996 ) . One such struggle arises when it is demonstrated that chelation of Zn ions affects sperm motility ( Saito et al. , 1967 ; Danscher and Rebbe, 1974 ) , and it has been suggested that bioavailable Zn edge to vesicular high molecular weight proteins instead than entire seminal Zn should be a step of the consequence of Zn on sperm map ( Bjorndahl et al. , 1991 ; Carpino et al. , 1998 ) . hypertext transfer protocol: //molehr.oxfordjournals.org/content/5/4/331.full.pdf+html Like zinc Mg besides originates chiefly from the prostate secretory organ and the degrees of this component in seminal plasma reflect prostate map ( Eliasson and Lindhomer, 1972 ) . The Mg degrees normally closely correlative with those of zinc concentrations ( Adamopoulos and Deliyiannis, 1983 ) .Lead a metal best known for being environmentally harmful doing it teratogenic and abortifacient. Lead disposal in animate beings causes sterility. Lead is non of course present in high sums in the organic structure but can be increased due to industrial exposure. The lead exposure has been observed to do teratospermia and to expose positive correlativity to blood lead degrees ( Lancranjan et al.1975 ) . Seminal fluid is rich in Ca and helps modulate sperm map as the concentration of Ca in seeds determines sperm motility, the ability of sperm to travel. However surveies show that an increased concentration of Ca ion was damaging to human sperm motility.Calcium is of import for sperm physiology including motility ( Morton et al. , 1974 ; Lindemann et al. , 1987 ) , metamorphosis ( Peterson and Freund, 1976 ) , acrosome reaction, and fertilisation ( Yanagimachi and Usui, 1974 ; Yanagimachi, 1981 ) . The function of seminal Ca in sperm motility is, nevertheless, non to the full understood. Thomas and Meizel ( 1988 ) found chelation of extracellular Ca ions with EGTA to suppress acrosome reaction, but at the same clip to hold no consequence on motility.Metals are omnipresent at low degree concentrations and are ingested by the general population either voluntarily through addendums or involuntarily through consumption of contaminated nutrient and H2O or contact with contaminated dirt, du st, or air. Some metals, such as Cd, lead, arsenic, and quicksilver, are incidental xenobiotics that can be measured in most of the general popu- lation [ Centers for Disease Control and Prevention ( CDC ) 2005 ] . Because widespread human exposure and organic structure load have been demonstrated, there is turning concern for inauspicious wellness effects associated with low-level exposures encountered in the environment. Human and carnal grounds suggests that these metals may hold inauspicious impacts on male generative wellness at comparatively low lev- ELs. For illustration, Cd has been linked to hapless human seeds quality and DNA harm ( Telisman et al. 2000 ; Xu et Al. 2003 ) ; Pb may adversely impact sperm form, motility, and DNA unity ( Eibensteiner et al. 2005 ; Hernandez-Ochoa et Al. 2005 ; Jurasovic et Al. 2004 ; Telisman et al. 2007 ) ; and methyl- quicksilver is associated with sperm abnormalcies in subfertile males ( Choy et al. 2002 ) . However, human informations on nonoccupation al Exposure to these metals has been limited ( e.g. , Hg ) , missing ( e.g. , As ) , or inconsistent across surveies ( e.g. , Cd ) . We designed the present survey to research relationships between these incidental metals and seeds quality among work forces with exposure degrees that are likely to be representative of those found among the U.S. general population. Several other metals, such as Cr, Cu, manganese, Mo, Se, and Zn, are indispensable for good wellness but may be harmful above certain degrees [ Agency for Toxic Substances and Disease Registry ( ATSDR ) 2003, 2004, 2005 ; Greger 1999 ; Institute of Medicine ( IOM ) 2001 ] . For exam- ple, Cr, Mn, and Cu, which act as cofactors for a assortment of of import enzymes, have been associated with decreased seeds quality in gnawers and in worlds ( Adejuwon et al. 1996 ; Huang et Al. 2000 ; Kumar et Al. 2005 ; Telisman et al. 2000 ; Wirth et Al. 2007 ) . Mo is besides an of import cofactor for a limited num- ber of human enzymes and has demonstrated generative toxicity in carnal surveies ( IOM 2001 ) . On the other manus, low doses of metals such as Cu, Se, and Zn may hold protective effects on male generative results ( Benofft al. 1997 ; Evenson et Al. 1993 ; Lyubimov et Al. 2004 ; Olson et Al. 2005 ) and may help in antagonizing the effects of Cd, Pb, or other metals ( Telisman et al. 2000 ; Xu et Al. 2003 ) . Because the possible exists for a figure of metals to positively or negatively affect male reproduction either separately or together, we besides included these metals in our analysis. This wk represents the most comprehensive survey to day of the month on metal exposures at environ- mental degrees and human seeds quality.hypertext transfer protocol: //www.scribd.com/doc/7905524/Cadmium-Lead-and-Other-Metals-in-Relation-to-Semen-Quality-Human-Evidence-for-Molybdenum-as-a-Male-Reproductive-ToxicantTable 1.1 demoing the effects of different metals on male generative systemThe tabular array below shows what Marthur and her co-workers found on how different metals affect the human male and male animate beings ‘ generative systems. Table taken from Journal of Biological Science by Marthur et al. , 2010 The human race is going more and more industrialised and at the same time urbanised. This is one of many factors which has induced the effects of ionic edge metals in male generative systems and caused worldwide qui vive ( Chowdhury, 2009 ; Turgut et Al. 2003 ) . Marthur et al. , 2010 were looking at one of the most toxic and inauspicious effects with in the human males generative system. An inflow in natural stuffs ingestion rates and graduated table has made the presence of metal compounds in the environment of all time more omnipresent. Anthropogenetic activities have been established as one of the prima causes for ecotoxicological effects. Metallic elements are various in composing and toxic stoping points, so they can non portion an exact chemical footing in toxicology. Metallic elements in ionic signifier have a inclination to be sensitive and extremely reactive which means that they can respond with biological elements, such as the human male generative system in a figure of different ways. This in consequence allows exogenic metals to exercise toxic effects that are straight linked to steric re-arrangement which has been found to be responsible for biomolecule mal map. ( Kasprzak, 2002 and Kasprzak et al. , 2003 ) . After consumption, metals can easy flux to the male generative system where the procedure of spermatogenesis is left vulnerable to changes. Similarly, the metals can interact and respond with familial make-up of the human male endocrines. Low sperm mortality and has been established to be a direct consequence of exposure to metals. Looking back at this reappraisal it can be easy deduced that the toxicity and sensitiveness of metals can be mostly attributed to the hormonal change and spermatogenesis break and or malfunction. ( hypertext transfer protocol: //scialert.net/fulltext/ ? doi=jbs.2010.396.404 & A ; org=11 )1.3 A brief debut to aluminiumAluminum can be found bounteously in our environment. It is the 3rd most abundant component in the Earth ‘s crust, stand foring 8 % by weight of the entire constituents ( Martin, 1997 ) . The worlds are necessarily and invariably exposed to aluminium. High contents of aluminum can be found in some stones after the lithospheric rhythm where it is introduced into the Earth ‘s crust. Weathering of these stones is what causes aluminium-rich minerals to fade out, which forms indissoluble clay-like stuffs that finally are re-introduced into the Earth ‘s crust by deposit. Aluminium returns into the magma by farther subduction, which in bend completes the rhythm ( Exley, 2003 ) The attendant clay like stuffs play a important function in the lithospheric rhythm of aluminum so efficient ( Exely, 2003 ) these along with the hydroxyaluminosilicates, startle the aluminum content so that it does non over concentrate the biotic rhythm. Normally aluminium enters the encephalon through the blood-brain barrier ( BBB ) . It is suspected that the aluminum enters the encephalon by receptor-mediated endocytosis as a compound with beta globulin ( Roskams and Connor, 1990 ) . it has been reported that aluminum can come in into the encephalon as a compound with beta globulin which is bound to citrate through a specific transporter, Xca?’ ( l-glutamate/l-cysteine ) system money changer is the most likely agent as explained by Nagaswa. ( Nagasawa et al 2005 ) . High aluminum consumption has been related to the appearence a neurodegenerative disease ( Perl & A ; Moalem, 2006 ; Kawahara, 2005 ) . Aluminium has no biological benefit ( Yokel 2002 ) . It is a poison associated with some medical conditions such dialysis brain disorder ( Alfrey etA al. , 1976 ) , osteomalacia ( Parkinson etA al. , 1979 ) , and it has been found to hold links with many other diseases including Alzheimer ‘s disease ( Exley 1999 ; Gupta etA al. , 2005 ) , Parkinson ‘s disease ( PD ; Yasui etA al. , 1992 ) , and amyotrophic sidelong induration ( Kurland, 1988 ) .1.4 How are worlds exposed to aluminium?There are several avenues which worlds can be exposed to aluminium due to its natural copiousness in the environment. Traces can be found in nutrient, H2O and air and even more sums can be intentionally introduced by worlds ( Miller et al. , 1984 ; Cech and Montera. , 2000 ; Lettermann and Driscoll. , 1988 ) . Aluminium compounds can be found in pharmaceuticals like alkalizers, anodynes and antiperspirants. They are besides used in H2O intervention processes as coagulators and can even be fou nd as metal in mundane consumer merchandises like foil paper and take away nutrient boxes. Aluminium compounds are besides found in about all workss. Edible workss that are of course high in aluminum include murphies, Spinacia oleracea and tea foliages ( WHO, 1998 ) . A recent survey at Keele University besides warned that unnecessarily high sums of aluminum are being used in the fabrication of baby powdered milk and that the aluminum content of expressions prepared from powdery milks was significantly higher than ready-made milks, ensuing in babies consuming up to 600 I?g of aluminum per twenty-four hours Exley and Burrell, 2010. Pregnant adult females may be potentially exposed to aluminium through the diet ( including imbibing H2O ) , dust and dirt consumption and some medicines ( Roig et al. , 2006 ) . Surveies have proven that aluminum is a major subscriber to pathologies such as dialysis dementedness, iron-adequate microcytic anemia, osteomalacia ( [ Suwalsky et al. , 2004 ] a nd [ Domingo, 2006 ] ) Over the past 40 old ages the controversial inquiry refering the possible function for aluminium neurotoxicity in lending to the pathogenesis of Alzheimer ‘s disease has been debated but remains unsolved.hypertext transfer protocol: //www.sciencedirect.com/science? _ob=ArticleURL & A ; _udi=B6TCN-4P6VDVC-2 & A ; _user=128592 & A ; _coverDate=10 % 2F08 % 2F2007 & A ; _rdoc=1 & A ; _fmt=high & A ; _orig=gateway & A ; _origin=gateway & A ; _sort=d & A ; _docanchor= & A ; view=c & A ; _acct=C000010620 & A ; _version=1 & A ; _urlVersion=0 & A ; _userid=128592 & A ; md5=ab46010ee2e9fa0fa7782f2dba6ebd0e & A ; searchtype=a1.5 What do we already know about aluminum and seminal fluidSo far I have found out that although aluminum is largely a harmful metal with no direct biological benefit ( Yokel, 2002 ) , it is found in copiousness in our environment. ( Martin, 1997 ) .Aluminium in high concentrations was linked to reduced sperm motility ability ( Hovatta et al. , 1998 ) . It is besides responsible for impaired sperm quality. Research was undertaken to detect the underlying disagreements between sperm quality and geographic location by Hovatta and co-workers. Due to miss of elucidation as to factors doing the diminution, surveies to analyze seeds quality and the concentrations of aluminum, Cd and lead in sperm cell and seminal plasma in a group of employees of a refinery and a polyolefin mill and the consequences were compared with informations obtained from samples from sperm bank seeds quality ( Hovatta et al.,1998 ) . The survey discovered that the average sperm concentrations were similar in the mill employees ( 96H106/ml ) . The sperm giver campaigners of the comparing group had a important difference of ( 104H106/ml ) in 352 giver campaigners at the sperm bank of the Family Federation of Finland ( 107H106/ml ) between May 1993 and May 1995 ( Hovvatta et al. , 1998 ) . Research done in Finland discovered that high and unchanged sperm counts have been found ( Suominen and Vierula, 1993 ; Vierula et al. , 1996 ) . In contrast to that, two necropsy series of middle-aged Finnish work forces showed an addition in the incidence of upsets of spermatogenesis between the old ages 1981 and 1991 was unveiled ( Pajarinen et al. , 1997 ) . Meanwhile, decreased birthrate in Britain ran parallel with that in Finland, based on differences in the clip to construct ( Joffe, 1996 ) . Regional differences were besides apparent in the USA, with the highest mean sperm concentration being found in New York ( 131.03106/ml ) and ( A © European Society for Human Reproduction and Embryology ) 115 the lowest in California ( 72.73106/ml ) ( Fisch et al. , 1996 ) . A little addition in sperm concentration between the old ages 1972 and 1993 was seen in Seattle, Washington ( Paulsen et al. , 1996 ) . It has been suggested that environmental factors played a function in the diminution observed in Europe, particularly environmental oestrogens ( Sharpe and Skakkebaek, 1993 ) . Oestrogens have besides been suggested to hold caused the addition seen in the incidence of cryptorchidy and testicular malignant neoplastic disease ( Sharpe and Skakkebaek, 1993 ; Skakkebaek and Keiding, 1994 ) . Heavy metals are potentially pollutants that may be harmful to sperm production. Exposure due to business or geographics to several metals is known to impair sperm quality ( Schrag and Dixon, 1985 ) . Substances such as lead and Cd concentrations have been measured in human seeds, seminal plasma, sperm cell, blood and piss, and high concentrations have been found to be related to impaired sperm quality ( Lancranjan et al. , 1975 ; Plechaty et al. , 1977 ; Braunstein et al. , 1978 ; Pleban and Mei, 1983 ; Stanwell-Smith et al. , 1983 ; Thomas and Borgan, 1983 ; Saaranen et al. , 1987, 1989 ; Chia et a l. , 1992 ; Hu et al. , 1992 ; Xu et al. , 1993 ) . In several experiments, many metals have besides been shown to be harmful with respect to testicular map and sperm production ( Alabi et al. , 1985 ) . Aluminum may good be one of the possible pollutants, because it reduces the weight of the testicles and was seen to do reduced epididymal sperm counts in the mouse ( Llobet et al. , 1979 ) . When aluminum is ingested in big sums, it leads to accumulation in certain mark variety meats such as the homo and animate being testicular tissues which consequences in harm occurring. The of long-run ingestion of aluminum showed suppressive effects on sexual behavior, lessening in birthrate and aggressive behavior ( Bataineh et al. , 1998 ) . There is grounds implicating androgenic endocrines involved in mechanisms of aluminum toxicity on male reproduction ( Sharpe, 1990 ) . To add to that, Guo et Al. ( 2005a ) carried out trials that proved that aluminium disposal significantly increased azotic oxide ( NO ) production and decreased both testicular adenosine 3aˆ?,5aˆ?-cyclic monophosphate ( camp ) and testosterone degrees. They demonstrated that inordinate NO activated inducible NO synthase ( NOS ) which may be involved in generative toxicity of aluminum. Information refering the generative toxicity and testicular disfunction of aluminum still needs more research. Besides, the function of propolis against aluminum induced impairments in the generative ability of rats has non yet been discovered. The survey taken on by ( Yousef and Salama,2009 ) , was aimed at finding the generative toxicity of aluminum chloride in grownup male rats. It showed that aluminum enhanced lipid peroxidation in plasma, testicles, encephalon, kidney, lung and liver of coneies, and besides in civilization of coney sperm ( [ Yousef, 2004 ] , [ Yousef et al. , 2005 ] and [ Yousef et al. , 2007 ] ) . Besides, to measure the protective consequence of propolis against the possible testicular disfunction caused by aluminum chloride. Table 1. Relative weights ( g/100A g organic structure weight ) of sex variety meats of male rats treated with AlCl3, propolis and AlCl3 + propolis.ParameterExperimental groupsControlAlCl3PropolisAlCl3+PropolisTestiss 0.72A A ±A 0.093 0.58A A ±A 0.061** 0.78A A ±A 0.0739*** 0.66A A ±A 0.091* Seminal cyst 0.35A A ±A 0.061 0.20A A ±A 0.081** 0.39A A ±A 0.105*** 0.31A A ±A 0.119* Epididymis 0.27A A ±A 0.036 0.19A A ±A 0.037** 0.30A A ±A 0.036*** 0.24A A ±A 0.041* Prostate gland 0.16A A ±A 0.023 0.14A A ±A 0.021 0.16A A ±A 0.017 0.15A A ±A 0.02 Full-size tabular array Valuess are expressed as meansA A ±A SD ; nA =A 10 for each intervention group. Significant difference from the control group at **PA & lt ; A 0.01. Treatment of male rats with AlCl3 significantly ( PA & lt ; A 0.01 ) decreased sperm concentration and motility rate. Meanwhile increased dead and unnatural sperm, as compared to command and propolis groups were seen in Table 2. Treatment with propolis entirely showed no important effects on sperm concentration and motility. while caused important ( PA & lt ; A 0.05 ) lessening in dead and unnatural sperm compared to command group. On the other manus, intervention with propolis in combination with AlCl3 caused significantly alleviated the diminution in sperm concentration and motility, and significantly decreased the per centum of dead and unnatural sperm compared to AlCl3 group. This means that propolis minimized the toxicity of AlCl3.ignificant difference from the AlCl3-intoxicated group at # PA & lt ; A 0.05 and # # PA & lt ; A 0.01. Table 2. Changes in sperm concentration ( Sp. Conc. , A-106/ml ) , motility ( % ) , and dead ( % ) and unnatural ( % ) sperm of male rats treated with AlCl3, propolis and AlCl3A +A propolis.ParameterExperimental groupsControlAlCl3PropolisAlCl3 + PropolisSp. Conc. 212A A ±A 15.5 148A A ±A 8.1** 233A A ±A 12.1 # # 199A A ±A 7.5 # # Motility 72.4A A ±A 1.89 50.9A A ±A 2.64** 79.7A A ±A 1.64 # # 70.5A A ±A 1.43 # # Dead 25.2A A ±A 1.95 45.1A A ±A 2.21** 20.2A A ±A 1.78* # # 28.8A A ±A 3.01 # # Abnormal 14.6A A ±A 1.96 21.3A A ±A 2.312** 11.6A A ±A 1.27* # # 16.7A A ±A 1.337 # # Full-size tabular array Valuess are expressed as meansA A ±A SD ; nA =A 10 for each intervention group.Significant difference from the control group at *PA & lt ; A 0.05 and **PA & lt ; A 0.01.Significant difference from the AlCl3-intoxicated group at # PA & lt ; A 0.05 and # # PA & lt ; A 0.01. This survey observed the consequence of aluminum chloride on sperm motility. ( Table 2 ) . Additionally, Dawson et al. , 1998 E.B. Dawson, S. Ritter, W.A. Harris, D.R. Evans and L.C. Powell, Comparison of sperm viability with seminal plasma metal degrees, Biol. Trace Elem. Res. 64 ( 1998 ) , pp. 215-223.Dawson et Al. ( 1998 ) found that high concentrations of aluminum in human sperm cell and seminal plasma are correlated with reduced sperm motility and viability. Motility is important in enabling the sperm to swim through the female generative piece of land and make the egg cell to accomplish fertilisation ( Aitken, 1995 ) . The observation can be concluded by stating that the lessening in sperm motility was caused in portion to the attendant decrease in testosterone production ( [ Guo et al. , 2005a ] and [ Yousef et al. , 2005 ] ) following aluminum intervention. Table 3. Plasma testosterone concentration ( ng/ml ) and activity of testicular 17- ketosteroid reductase enzyme ( U/min/mg protein ) , and testes protein content ( mg/g tissue ) of male rats treated with AlCl3, propolis and AlCl3 + propolis.ParametersExperimental groupsControlAlCl3PropolisAlCl3 + PropolisTestosterone 1.31A A ±A 0.244 1.00A A ±A 0.115* 1.51A A ±A 0.113* # 1.15A A ±A 0.064 # 17-Ketosteroid Reductase enzyme 14.6A A ±A 2.02 10.2A A ±A 1.13** 19.1A A ±A 1.49** # # 12.8A A ±A 2.03* # Protein content 76A A ±A 4.4 60A A ±A 4.7** 105A A ±A 5.3** # # 75A A ±A 5.2 # # Full-size tabular array Valuess are expressed as meansA A ±A SD ; nA =A 10 for each intervention group.Significant difference from the control group at *PA & lt ; A 0.05 and **PA & lt ; A 0.01.Significant difference from the AlCl3-intoxicated group at # PA & lt ; A 0.05 and # # PA & lt ; A 0.01. Datas in Table 3 showed important lessening in plasma testosterone concentration ( PA A 0.05 ) and testicular protein ( PA A 0.01 ) in rats treated with AlCl3 compared to command. While, propolis significantly increased testosterone and protein content and alleviated the negative effects for AlCl3 in group 4 on these parametric quantities. Aluminium chloride exposure displayed gonadotoxic effects in male rats and maternal decease was associated with foetal decease in pregnant rats. The exposure to aluminum increases the incidence of fetal abnormalcies in rats and mice ( Belles et al. , 1999 ) . The survey of Guo et Al. ( 2005a ) demonstrated that exposure to aluminium lowered plasma and testicular testosterone degrees in mice. It was suggested that the terrible decrease in male libido and birthrate following the aluminium disposal might be a consequence from inordinate aluminum accretion in the testicles and low testosterone concentrations. High degrees of aluminum in aluminium-treated mice were evident at hebdomad 3 before the effects on male libido and birthrate manifested. The disagreement was reasoned such that aluminium accretion failed to instantly impact the enzymes for androgen biogenesis or bring forth a possible perturbation in hypothalamic-pituitary-gonadal axis. However, the present survey showed that AlCl3 caused important diminution in the activity of 17-ketosteroid reductase after 70A yearss intervention ( Table 3 ) . Table 4. Changes in the activities of catalase ( CAT ; mol/h/g tissue ) and glutathione S-transferase ( GST ; I?mol/min/g tissue ) , and the degrees of thiobarbituric acid-reactive substances ( TBARS ; nmol/g tissue ) and reduced glutathione ( GSH ; mM/g tissue ) in testicles of rats treated with AlCl3, propolis and AlCl3A +A propolis.ParameterExperimental groupsControlAlCl3PropolisAlCl3+PropolisCat 6.96A A ±A 1.140 3.01A A ±A 0.578 ** 9.95A A ±A 1.050 ** # # 5.89A A ±A 0.793 # # GST 1.08A A ±A 0.100 0.59A A ±A 0.154** 1.43A A ±A 0.299 ** # # 0.96A A ±A 0.125 # # TBARS 71.8A A ±A 5.58 195.9A A ±A 10.62 ** 60.4A A ±A 6.18 * # # 97.4A A ±A 9.58 * # # GSH 6.02A A ±A 0.694 4.15A A ±A 0.690 * 8.25A A ±A 0.902 * # # 5.74A A ±A 1.863 # Full-size tabular array Valuess are expressed as meansA A ±A SD ; nA =A 10 for each intervention group.Significant difference from the control group at *PA & lt ; A 0.05 and **PA & lt ; A 0.01.Significant difference from the AlCl3-intoxicated group at # PA & lt ; A 0.05 and # # PA & lt ; A 0.01. The control testicles are surrounded by a dense hempen tissue capsule known as the adventitia albuginea The histological survey showed that.The testies are divided into lobules by thin hempen septa ; the interstitial tissue surrounds the lobules which contain several seminiferous tubules within them. The tubules are lined with germ cells in assorted phases of spermatogonia, some primary and secondary spermatocytes, spermatids and mature sperm cell that occupy the Centre of the tubule. Between the spermatogonia and the balance of the basal lamina are the sertoli cells. The interstitial tissue is supported by Leydig cells in chief. They occur singly or in bunchs and are embedded in the rich rete of blood and lymph capillaries. Observations of testicles treated with AlCl3 revealed several changes. The accretion of exfoliated source cells within some seminiferous tubules affected their architecture and left them disorganized. Some tubules exhibited ripening apprehension. And moreover, so me source cells had little and darkly stained nuclei. Marked dilation and congestion of blood vass were noticed in the interstitial infinites. Hyperplasia of Leydig was detected in the interstitial tissue. The Leydig cells became crowded and formed dense bunchs that surrounded most of the seminiferous tubules ( Fig. 2 ) . Some subdivisions of testicles of the rats treated with propolis entirely showed that they were less or more similar to the control subdivisions ( Fig. 3 ) . Testis of rats treated with aluminium plus propolis revealed that it regained about all of its original construction and singular Restoration of the normal image of seminiferous tubules was attained. The germ cells appeared regular in form with disappearing of most cytoplasmatic vacuolization. Most of the karyon became vesicular ( Fig. 4 ) . Testes accumulate high aluminium over age in rats ( Gomez et al. , 1997 ) . Light microscopy of silver-stained paraffin subdivisions of the testicles demonstrated legion i ntracytoplasmic black-stained all right farinaceous inclusions in Leydig cells ( Reusche et al. , 1994 ) . The histological alterations in testicles of rats treated with AlCl3 ( Fig. 2 ) is coincident with the obtained informations by Khattab ( 2007 ) who studied the consequence of AlCl3 on the testicles of rats after an intraperitoneal injection was administered. The testicles showed histological disturbance including terrible harm within the seminiferous tubules and vascular devolution on the spermatogenic and sertoli cells cytol. The originative epithelial tissue of the seminiferous tubules was thinner in topographic points and spermatids became really scarce in presence. Sperm Numberss was low and there were no sperm in the lms. Besides, up on negatron microscopic surveies, in the aluminium-treated group, there were some anomalousnesss in the atomic membrane, amendss to some chondriosomes, ribosomes population lessening, and an addition in the figure of lysosomes in the sertoli cell cytol. In the primary spermatocyte cytol, there was an addition in the unsmooth endoplasmic Reticulum. Guo et Al. ( 2005b ) found that after 2 hebdomads of aluminum intervention, hurtful effects and histopathological alterations of testicular tissues were observed. However, noticeable spermatogenetic loss was viewed as necroses in the spermatids and sperm cell in aluminium-treated group at hebdomad 5. The damage caused by aluminum was accompanied chiefly by the drawn-out accretion of aluminum in the mice testest. Fig. 1.A Photomicrograph of control testicle subdivision demoing interstitial cells ( I ) and germ cells ( G ) . H & A ; E discoloration ( 400A- ) . Fig. 2.A Photomicrograph of testicle subdivision that treated with aluminum demoing germ cells ( G ) , exfoliated source cells ( E ) , hyperplasia of Leydig cells ( I ) and vacuolization ( V ) . H & A ; E discoloration ( 400A- ) . Fig. 3.A Photomicrograph of testicle that treated with propolis demoing germ cells ( G ) . H & A ; E discoloration ( 400A- ) . Fig. 4.A Photomicrograph of testicle subdivision that treated with Aluminium and propolis demoing germ cells ( G ) . H & A ; E discoloration ( 400A- ) .1.6 Purposes and aims of my undertakingIn this undertaking my chief purpose was to find the presence of aluminum in seminal fluid and sperm cell. I had to found out if aluminum was present in the seminal fluid or the sperm cell.DiscussionTHE EFFECT OF ORAL HIGH ALUMINIUM INTAKE ONRAT SPERMATOGENESISI.M.D. Rashidi. Head of section & A ; member of adept commission Dept of pathology Medical school Ahwaz medical university, Ahwaz Iran Aluminum is one of the most abundant elements in the Earth crust and enters to the organic structure through imbibing H2O, foods and drugs like antacids. Aluminium poising causes broad scope of upsets, including: a lessening in the release of neurotransmiters and suppression of electromotive force dependent Ca channels. The function of Ca on GnRH release and its action is detected so, in this perusal, the consequence of high aluminum consumption on rats spermatogenesis is investigated. The experiment performed in four groups, a control group and three experimental groups consumed 0.625, 1.25 and 2.5 milligram aluminum per gm diet for 60 yearss. Epididymis and vessel deferens were dissected cut and diluted with normal salin. In all groups weight of vessel deferens, epididymis, testicle and whole animate being, sperm count per gm deferens and epididymis tissues were determined so, the testicular tissues fixed in formol for survey of histopathology. The consequences have shown that in experimental groups which consumed 1.25 and 2.5 milligram aluminum per gm diet, the vessel deferens, epididymis, testicle and carnal weight were significantly decreased. In this animals the figure of sperm per gm tissues from vessel deferens, epididymis were reduced. The ripening apprehension is seen in seminoferous canal and it have n't spermatogenesis. Therefore, this analyzing indicated that high aluminum consumption in rat have an suppressing consequence on spermatogenesis and this consequence is dose dependant. hypertext transfer protocol: //www.sciencedirect.com/science? _ob=MImg & A ; _imagekey=B6TCR-4CB7K82-GF-1 & A ; _cdi=5177 & A ; _user=128592 & A ; _pii=S0378427403904048 & A ; _origin=gateway & A ; _coverDate=09 % 2F28 % 2F2003 & A ; _sk=998559999.8998 & A ; view=c & A ; wchp=dGLzVtb-zSkzV & A ; md5=1f1a3377fb5ad50ff2bd8ffd8947d810 & A ; ie=/sdarticle.pdf Read and summarize but cite hypertext transfer protocol: //humrep.oxfordjournals.org/content/13/1/115.full.pdf