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Search results 2761 - 2770 of 7924 matching essays
- 2761: How Nutrients Get in, and Wastes Out.
- ... the dextrin into maltose. The salivary glands can be activated when food is thought of, while the actual presence of food will produce a continuous flow. Since food remains in the mouth for a very short period, very little of the digestive process actually occours in the mouth. Following digestion in the mouth, the semisolid food mass is passed by peristaltic movements of the esophagus, a long muscular tube that connects ... filtration. As the fluid moves down the tubule, many of the nutrients that escaped the cell such as sodium ions and glucose are reabsorbed so that the body can use them, and will not become short of these substances. The fluid is now urine, and collects in a hollow region of the kidney. From the kidney, the urine enters the urinary bladder, a storage container for the urine. When this bag ...
- 2762: Current Status of Malaria Vaccinology
- ... human hepatoma cells. Despite such encouraging animal and in vitro data, evidence linking protective immunity in humans to levels of CS antibody elicited by natural infection have been inconclusive possibly this is because of the short serum half-life of the antibodies. This study involved the volunteering of 199 Thai soldiers. X percentage of these were vaccinated using R32 Tox -A prepared in the way previously mentioned and as mentioned before ... he identified using antibodies from people immune to malaria, and injected these antigens into monkeys and eventually found four that provided some immunity to malaria. He then sequenced these four antigens and reconstructed dozens of short fragments of them. Again using monkeys (more than a thousand) he tested these peptides individually and in combination until he hit on what he considered to be the jackpot vaccine. But the WHO a 31 ...
- 2763: The Circulatory System
- ... heart is thrown forward and upward with a slight rotary motion then this impulse, called the apex beat, can be detected between the fifth and sixth ribs. The heart is entirely at rest for a short time after the ventricular systole occurs. The entire cycle can be divided into three periods then in the first, the auricles contract and in the second, the ventricles contract; in the third, both the auricles ... 3 second. Thus, the heart is completely at rest for about 0.4 second, or during perhaps half of each cardiac cycle. With every beat, the heart emits two sounds, which are followed by a short pause. The first sound, coinciding with the ventricular systole, is dull and protracted. The second sound, made by the sudden closure of the semilunar valves, is shorter and much sharper. Diseases of the heart valves ...
- 2764: The Human Brain
- ... equipment is a brand new addition to the family of body scanners. It is still in experimental mode at several United States hospitals, but it has received much positive criticism. The SPECT, which is the short form for Single Photon Emission Computed Tomography, is a device which resembles the PET. However, it uses radiation which is less harmful and the tracers which are injected into the patient are non- radioactive isotopes ... disease is the most important degenerative disease. It is a form of dementia, a type of disorder in which various tissues of the brain are gradually destroyed. The results of such process include speech disturbances, short-term memory loss, disorientation, loss of mental faculties and death. Alzheimer's is not bound by age limits. It affects not only the elderly, as most dementias do, but sometimes even attacks young adults. There ...
- 2765: Angina Pectoris
- ... or ear lobe - Pains in the back or between the shoulder blades Angina can be so severe that a person may feel frightened, or so mild that it might be ignored. Angina attacks are usually short, from one or two minutes to a maximum of about four to five. It usually goes away with rest, within a couple of minutes, or ten minutes at the most. Different Forms of Angina There ... blood vessels, allowing the arteries to dilate. They have a tendency to produce flushing and headaches because the arteries in the head and other parts of the body will also dilate. Glyceryl trinitrate is a short-acting drug in the form of small tablets. It is taken under the tongue for maximum and rapid absorption since that area is lined with capillaries. It usually relieves the pain within a minute or ...
- 2766: Bronchitis
- ... breath only occurs during exercise and other strenuous activity. The bronchitic with a great deal of emphysema, who has lost a lot of his or her oxygen cc exchanging ability, due to the condition, is short of breath at all times. The bronchitic with emphysema very often are underweight and, as the disease comes worse, develops a barrel chest. The Chronic bronchitic also wheezes because of the obstruction. NOTE: Emphysema is ... diagram 1) and they begin to expand and swell up. As they expand, they squeeze the trachea (see pg 5 cc diagram 2). As a result, less air can pass through the trachea causing a short of breath. Generally, bronchitis occurs with greater frequency in winter, in damp, cold climates, and in heavy polluted environments. The best treatment for acute bronchitis is bed rest in a warm room. Cough medicines will ...
- 2767: Smoking
- ... smokes. (e) greater alcohol consumption than baseline. Multivariant results compared groups A, B, and C individuals with group D (those who abstained for 365 days). The most significant baseline predictors in descending strength are: (a) short term confidence in maintain abstinence. (b) not equalling prior longest quit time. (c) started smoking to maintain weight. In comparison, between group A and D, a person with one standard deviation higher in confidence is ... more likely not to relapse, and men were more likely to they use the weight motive. While results for comparing groups B and C with group D have basically the same predictors of relapse; less short- term confidence and baseline alcohol consumption. This study has found that relapse in the first early weeks of cessation are higher than recent literature suggests, compared to those who attend stop smoking type clinics. Example ...
- 2768: Schitzophrenia and Other Mental Disorders
- ... disorder means psycological and behavioral syndromes that deviate signicantly from those typical of human beings enjoying good mental health. All that mumbo jumbo means that a person with a mental disorder was a few cards short of a full deck. This is probably not the persons fault that they are like this they were just born this way. These people are not all a like. They are not even in exact ... Earnie took of because he thought Cat was going to kill him with his knife. Now that situation showed the mean side of Jimmy Sanders. That mean side I will call Bluegill #2. So the short term for schitzophrenia is Split Minded and that is definetly Jimmy. Jimmy has two mindes the nice Cat (Bluegill #1) is when Jimmy is seen with not so weird clothes on and he usually is ...
- 2769: Dreaming: Function And Meaning
- ... dream every night, about one dream period every 90 minutes. People who say they never dream simply never remember their dreams. You may have more than one dream during a REM (dream) period, separated by short arousals that are most often forgotten. It is generally accepted among sleep researchers that dreams are not recalled unless the sleeper awakens directly from the dream, rather than after going on to other stages of ... long dream story at 3 AM, note down key points of the plot. Also write down the precise content of any dialogue from the dream, because words will almost inevitably be forgotten in a very short time.
- 2770: The Sources Of Public Policy
- ... one course of action from several options with the expectation that the selections will serve the policymakers purposes. 4- Discerning the Alternatives In searching for alternative courses of action, policymakers usually begin with the short list of ideas with which they are familiar, each of these ideas is suggested or mandated by the definition that influential people have already given the problem. If time is short or political pressures exist, policymakers often satisfice with the information they have. This means that the end the search before they analyze every alternative and decide on the basis of what they do know. But ...
Search results 2761 - 2770 of 7924 matching essays
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