Fixing A Computer :: essays research papers

Fixing A Computer   Ã‚  Ã‚  Ã‚  Ã‚  Fixing computers is easy. The paragraphs to follow contain information on labeling parts, problems, and repairing vs. fixing. In these paragraphs will also compare a computer to the human circulatory system.   Ã‚  Ã‚  Ã‚  Ã‚  The internal parts of computers are very easy to recognize, once they are labeled. We will start by opening the case into the computer. Before opening the case don’t forget to have the computer turned off and unplugged, we don’t want to fry the computer parts. Once inside, we have a look around, and see a lot of parts that are unrecognizable to us. We will start from a top to bottom process of labeling parts. First look towards the bottom the big green board that everything else lies on is called the motherboard. A motherboard acts like the arteries of a human taking the blood all over allowing the blood places to travel, except the motherboard does this with electrical signals. The motherboard has three cards on it; they are the graphics card, sound card, and modem. They act like the voice, the eyes and the mouth of a human. You can tell the difference between them by how they connect in the back of the computer. The graphics card has a prong plug i n, the sound card has a place where speaker plugs can go and modems have a place where you can put your phone line. Next to the left of the cards we see there is a little chip with a fan on top, this is the processor. The processor acts like the heart of a human sending blood all over the body, but instead of blood the processor sends electrical signals. Straight above the processor in the little slot is the hard drive. The hard drive acts kind of like the brain of the whole computer, by storing information on it and sending and receiving electrical signals. Finally we have the cd-rom. This is located above the hard drive. The cd-rom is the mouth of the human. But the cd-rom takes in data instead of food. Next on the motherboard is three little chips, sitting next to the processor, these are called Random Access Memory, or RAM. The ram acts like the quick storage in the brain it remembers the stuff that you are working on right then. There now that we know the computers insides, I will give examples of problems and explain how to fix them.

Causes of Food Allergy

What Causes Food Allergy? Food allergies occur when the immune system mounts an attack on certain proteins in certain foods. The substances in the food that cause this immune system response are called allergens. The immune system is a complex network of cells and molecules that help defend the body against unknown substances. When a properly functioning immune system detects an unknown substance, it responds to this threat by producing proteins called antibodies against the invaders. The antibodies will recognize and attack this foreign substance when they next encounter it.This â€Å"battle† is what causes the allergy symptoms. In food allergy the immune system mistakenly sees a harmless substance in the food as harmful, and churns out antibodies known as immunoglobulin to attack it. These antibodies will circulate in the blood, attached to special cells called mast cells, which are part of the immune system. This occurs in order to protect against future invasion by that su bstance. The next time a person eats that food, the substance to which he is allergic the allergen enters the body, and attaches to the immunoglobulin on mast cells.The mast cells respond by releasing a host of powerful chemicals, including histamine, to protect the body. This produces allergic symptoms. Histamine contributes to inflammation and causes symptoms such as swelling on the skin and itching. It is responsible for the hives, or welts, that appear on the skin when a doctor tests for allergy. These hives show the presence of immunoglobulin and are one of the best indications of allergy. What are the Symptoms of Food Allergy? In an allergy attack, the symptoms experienced depend on where in the body histamine is released.Allergic reactions to foods most often involve the skin, the stomach and intestines, and the mouth and the respiratory system. A life threatening reaction may involve all parts of the body including the cardiovascular system so that the individual goes into s hock this will lead to blood pressure to fall dangerously low. A severe reaction could start very suddenly and involve only a fall in blood pressure or shock. It is important to know that a life threatening reaction may occur with no skin symptoms. Symptoms may appear within minutes or as long as several hours after eating the allergy provoking food.An allergy reaction in the skin may cause hives, itchy, scaly rash called eczema, redness or flushing, and swelling. In the digestive system an allergy reaction may cause stomach pain, nausea, vomiting, and diarrhea. An the common respiratory symptoms from an allergic reaction may include sneezing, coughing, runny nose, wheezing, closing of the throat and breathing difficulties, as part of a severe allergic reaction known as anaphylaxis and, itchy, watery eyes are often included with respiratory symptoms. Life-Threatening Reactions (Anaphylaxis)The most severe allergic reaction is anaphylaxis, or anaphylactic shock, a severe reaction tha t involves most of the body. Anaphylaxis can affect several parts of the body at the same time, including the skin and the digestive and respiratory systems or it might just involve respiratory or cardiovascular symptoms. In addition to producing the symptoms of food allergy, it may also lead to difficulty in breathing, falling blood pressure and unconsciousness. Although very rare, anaphylaxis can be fatal. Each year, about 150 people in the United States die of food-related anaphylaxis.Which Foods Cause Allergic Reactions? Virtually any food can trigger an allergic response. However, studies have found that 80 to 90 percent of children with food allergies are allergic to one or more of these foods for example eggs, peanuts, milk, wheat, and soy. Other common triggers include tree nuts such as almonds, pecans, cashews, Brazil nuts and walnuts, and fish and shellfish for example, crab and shrimp. Various other foods and certain food additives and spices may cause allergic reactions. Cross ReactionsSometimes, an individual's allergic reaction to a particular food extends to other foods that contain similar allergens, a phenomenon called cross reactivity. For example, someone who is allergic to peanuts may also have a problem with other legumes, such as soybeans or peas. However, it may be surprising to know that the vast majority of food allergic individuals rarely react to other legumes. In fact, more peanut allergic children seem to be allergic to eggs or tree nuts than to other legumes. Cross reactions can develop between foods with allergens similar to those of other allergy provoking substances, such as plant pollens.Researchers have found, for example, that some people who suffer hay fever symptoms when they inhale birch pollen also have an allergic reaction when they eat kiwi fruit or apples. How do u find out if u have Food Allergies? If you think you have food allergies, you should see an allergist, a physician who specializes in diagnosing and treatin g allergies. If you try to diagnose the problem yourself, you run the risk of removing too many foods from your diet and losing important nutrients. Before making a diagnosis, an allergist will take your medical history and ask whether you have a family history of allergies.The doctor will ask detailed questions aimed at uncovering a possible relationship between the symptoms and your diet, such as, what kinds of symptoms does the suspected food or foods produce? How much time elapses between eating the food and the onset of symptoms? How much of the food do you have to eat to trigger a reaction? How many times has eating the food caused a reaction? When was the last time you had a reaction to the food? These are several questions that the doctor will ask. Controversial Tests and TreatmentsThere are some questionable practices for diagnosis and treatment of food allergies. Tests that are not scientifically valid and are considered experimental including, Blood tests that determine f ood immune complexes and IgG food antibodies. This tests measure substances that all normal people have in their blood. Food immune complexes form after food digestion. IgG includes most of the protective antibodies, including those that form when you receive a vaccine or after an infection. It is unclear whether people with allergies make abnormal amounts of these substances.Cytotoxic test, this test involves adding a food allergen to someone's blood sample and examining the reaction of white blood cells under a microscope. If the cells change shape, decrease or die, the person is thought to be allergic to that food. No proof exists that this test is effective for diagnosing food allergy. Provocation and neutralization, in the subcutaneous under the skin form of this test, a food extract is injected under the skin. In the sublingual under the tongue form, the food extract is placed under the person's tongue.If the person has an allergic reaction, he or she receives more of the subs tance. The belief is that the second dose neutralizes, or relieves, the symptoms. In reality, it can cause a severe allergic reaction. Some doctors use provocation and neutralization to try to desensitize allergic people to foods. But the technique has been found to be ineffective for both diagnosis and treatment of allergies. How to Cope With Food Allergy Most people with food allergies will be put on an elimination diet one from which foods suspected of causing an allergic reaction are removed.It may be difficult to stop eating some foods, such as those made with wheat or milk. Fortunately, there are many foods on the market that substitute for the more common allergy provoking foods. Creating a Food Plan For help in restricting your diet after a food allergy diagnosis, consult your doctor or a registered dietitian. Dietitians can help design a food plan, suggest alternative foods or ingredients to replace forbidden ones, and provide instruction on reading food labels. You may fin d it helpful to use an allergy free cookbook, which gives recipes that omit common food allergens.Prepared allergen free items, such as rice bread and soy beverages, are available at health food stores and some grocery stores. It is not always possible to avoid the offending food. Your physician may give you medication to treat symptoms resulting from food allergies. Avoiding Accidental Ingestion Despite precautions, people with histories of food reactions sometimes unknowingly consume a food to which they are allergic. This can happen when the person is unaware of an ingredient in a dish someone else has prepared.Or perhaps the offending ingredient is not on the label or is expressed in a term that does not clearly describe the ingredient. People with severe food allergies need to be aware that tiny amounts of allergens left on pots, pans, and cooking utensils can contaminate other foods. To avoid this kind of danger, people with severe food allergies are advised to make certain th at pots, pans, and cooking utensils are carefully washed with soap and water after each use to remove any traces of forbidden foods.How Is Food Allergy Treated? Once an allergy is diagnosed, strict avoidance of the offending food or foods is the only proven method of managing the allergy. There is no medical cure for food allergy. However, within the next few years there will be safe and effective vaccines for food allergies. By strictly avoiding the food for one or two years, approximately one third of children and adults can lose their sensitivity to that food. But few children or adults outgrow their allergies to peanuts, tree nuts, and shellfish.Although there are no medications currently available to treat food allergies, there are drugs on the market to treat symptoms of food allergies. The proper treatment depends on the severity of the allergic reaction. Antihistamines can help control mild reactions. These drugs have side effects, however. Over the counter Antihistamines ca use drowsiness. Your doctor can prescribe an antihistamine that will not make you sleepy. Asthma medication can be useful for people who wheeze during an allergic reaction.In rare instances, food allergies may bring on an asthma attack. These attacks may be very severe. Epinephrine is used to treat anaphylaxis, a life threatening complication of food allergy. Doctors advise people with severe food allergies always to carry a self injecting device loaded with epinephrine or a kit containing a needle and syringe and to inject themselves at the first sign or symptoms. References (2005). Common food allergies. Cortlandt Forum, 18(11), 38-45. Retrieved from Academic Search Complete database.

Essay about Elizabethan Theater - 1308 Words

Elizabethan Theater Drama changed literature and theater into what it is today. I. History of Elizabethan Theater a. forming of theater 1. medieval church 2. mystery and morality b. actors 1. rogues and thieves 2. acting guilds II. Influences and people a. commanding actors 1. Shakespeare 2. Burbage b. other 1. wars of the roses (other historical influences) 2. laws restricting theater III. The theaters a. prices 1. seating 2. stage b. the theater and the globe 1. locations and characteristics 2. Burbage and other accomplishment Elizabethan Drama During the reign of Queen Elizabeth I, England underwent a dramatic change in priorities. The importance of art and literature became highly prevalent. The impact of the Elizabethan drama and†¦show more content†¦When Christopher Marlowe, the most famous playwright in his time (Lace, 79), died, William Shakespeare was his successor. Shakespeare decided drama was to be his career after seeing the Queen’s Players during a visit to his hometown of Stratford-on-Avon in 1587 (Lace, 79). By the time of Marlowe’s death, Shakespeare was already well known for his three part â€Å"Henry VI† in 1592 (Lace, 79). His plays â€Å"Love’s Labour’s Lost† and â€Å"Romeo and Juliet†, both in 1594, were performed and he became the most outstanding playwright of his time (Lace, 79). Before Elizabeth’s reign was over, â€Å"Richard II†, â€Å"Julius Caesar†, â€Å"Henry V†, and â€Å"Hamlet† had been performed (Lace, 79). James Burbage was the second most influential actor of the Elizabethan period, but not only for his acting talent. Burbage built the first ever public playhouse in England, opening in 1576 (Unknown, 218). Burbage financed the building of â€Å"The Theater† alone, a well off man but was still considered a rogue. Actors were not the only influence on theater. When Mary Tudor decided the throne was rightfully hers, the War of the Roses ensued (L ace, 73). Because of the War of the Roses, many nobles, that employed actors, were killed (Lace, 73). This forced actors to form their own troupes (Lace, 73). In 1572, parliament passed the Poor Laws, making it a criminal offense to be a vagabond (Lace, 75). This reduced the number of acting companies and required them to beShow MoreRelatedThe Elizabethan Age: Is There a History Behind the Theater? Essay examples1668 Words   |  7 Pages There’s always history behind a theater, right? Right! The Elizabethan Theater was part of an age where body of works reign while Elizabeth I was queen (1558-1603). During the Elizabethan era, there was a mass production of inspired drama, poetry and other forms of literature, as well as growth in humanism and significantly the birth of professional theater in England. 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