The Evolution Of The Eye
.... of the eye, we must first have an understanding of its structure and function. On a more basic level, we must also have an understanding of basic optical principles. To gain insight into why the eyes of animals have evolved the way that they have, we must also understand the environment in which animals have needed to adapt to.
The theory of lens design has two basic models. The convex lens, or plus lens, is known as a converging lens. When light passes through this lens, it is bent towar .....
|
|
Pregnancy, Lactation, And Infancy
.... pregnancy, a woman can develop the strength she needs to carry the extra weight and maintain habts that will help her lose it after birth.
From conception to birth, all parts of the infant, bones, muscles, organs, blood cells, skin, and other tissue are made from nutrients in the foods the mother eats. Nutrients needs during pregnancy and lactation are higher than at any other time. A pregnant women needs extra food energy, but only alittle extra, 400kcalories above the allowance .....
|
|
Autism
.... absorbed in his self. (1) John Haslam also noted about a boy, who after getting measles, his behavior changed and he became aggressive, showing signs of being impulsive and other problems. In the early 1900s Lightner Witmer wrote about a boys problem, describing his behavior, which would more than likely be labeled as autism today. Several old theories about the cause of autism have been proven false. Autism is not a mental illness. Children with autism are not uncooperative kids with a behavior problem. .....
|
|
Teen Pregnancy
.... A condom is sheath that fits over the penis made of either latex, plastic or animal tissue. Condoms are also refered to as a rubber, safe or jimmy. It catches semen before, during and after a man ejaculates.It prevents pregnancy by preventing the sperm from entering the vagina. There is however a risk that you might get pregnant even with the use of condoms. It is not one hundred percent effective. However, latex condoms also protect against sexually transmitted diseases (STDs), including HIV. The .....
|
|
A Report On The Fundamentals Of Dyslexia
.... that means that there is a chance that your own child could have it. Unlike what most people think, dyslexia is not to be blamed on the parent for negligence in teaching reading and writing. Dyslexia is not any ones fault it simply occurs when the barrier in the language center of you brain cracks. In some experiments done by the University of Montreal, they are comparing good adult readers to dyslexic adult readers. In most cases the adult dyslexics were at about the high school level. When the adult .....
|
|
The Spread Of AIDS
.... such as the 1917/18 influenza pandemic which killed over 21 million people, including 50,000 Canadians. Having been lulled into false security by modern antibiotics and vaccines about our ability to conquer infections, the Western world was ill prepared to cope with the advent of AIDS in 1981. (Retro- spective studies now put the first reported U.S. case of AIDS as far back as 1968.) The arrival of a new and lethal virus caught us off guard. Research suggests that the agent responsible for AIDS p .....
|
|
Unconventional Medicines
.... the patient imagines that they are being healed, and before long, they will feel better. For example, if a patient had a bad sunburn on their back, they could imagine that a block of ice was melting inside their neck and dripping down the back. Within minutes, the pain should be gone. Imagery can also include sounds, tastes, and smells. (Nash,1996:45) The list of alternative therapies goes on and on.
For every disease known to mankind, there is probably a complementary alternative medicine to count .....
|
|
Bipolar Affective Disorder
.... of a depressive episode include anhedonia, disturbances in sleep and appetite, psychomotor retardation, loss of energy, feelings of worthlessness, guilt, difficulty thinking, indecision, and recurrent thoughts of death and suicide (Hollandsworth, Jr. 1990 ). The manic episodes are characterized by elevated or irritable mood, increased energy, decreased need for sleep, poor judgment and insight, and often reckless or irresponsible behavior (Hollandsworth, Jr. 1990 ).
Bipolar disorder is diagnosed .....
|
|
Being Physically Fit
.... them feel better about themselves, they will be glad for starting a physical fitness program.
The only way to become physically fit is to start a Physical Fitness Program however, it is important that people are healthy when they start a fitness program. Therefore, they need to check with their physician before starting any new activity or training, to insure a safe and enjoyable workout (Zuti 1). To begin a physical fitness program, people must set goals and develop plans as how they expect t .....
|
|
Alcoholism
.... strike at any age. Ten percent of the adult drinkers in the U.S. are considered alcoholics or at least experience drinking problems to some degree. Surveys have shown that more than one out of three Americans have a personal friend or relative who has had a drinking problem for ten years or longer. Almost two out of three Americans report that they know someone who drinks too much. It is estimated that there are 18 million alcoholic or problem drinkers in the U.S. For every alcoholic there are at lea .....
|
|
Myasthenia Gravis
.... be inherited but first-degree relatives have a 1000x greater risk of developing MG than the general population, suggesting a genetic predisposition.
Clinical Features
The cardinal feature of MG is muscle weakness and fatiguability. The muscles most commonly affected are the oculomotors, which cause ptosis or diplopia. MG can also commonly present with oropharyngeal muscle weakness. The patient may regurgitate food through the nose, be unable to chew meat, speak in a markedly ‘nasal’ tone, or have .....
|
|
Drugs And Steroids In Sports
.... team used them, her muscles started to bulge, her voice grew deeper, and she even had the beginnings of a mustache. These are all the usual symptoms of anabolic steroids. Steroids were not always used for sports, they started out the same way most drugs did, medicinal purposes. Victims of starvation and severe injury profited from it's ability to build new tissue quickly. They also helped prevent muscle tissue from withering in patients who had just had surgery. Steroids are used to tre .....
|
|
Skin Cancer: The Dangers Of Wanting A Dark Tan
.... indicates that the growth is deeper, but has not spread anywhere else on the body.
Stage III:
This is when the melanoma has spread to a nearby lymph basin or other tissue.
Stage IV:
This is the most serious, where the mutated cells have spread throughout distant parts of the body.
Countless reports have been done and released to the public on the dangers of too much exposure to the sun and skin cancer. This has almost been to no avail. I believe that in order to help teens rea .....
|
|
Advantage Of Nutrition, Exercise, And Well-being Programs
.... programs to assist the employee with any personal problems that they might have. Some employers offer smoking cessation programs and ergonomic supplies to prevent work-related injuries. With implementation of exercise and well-being programs, companies are not only helping employees, but also dramatically increasing the overall potential of the company.
Exercise in the work place? True this sounds unusual, but look at all the benefits exercise has to offer, and with so many exciting choices in exer .....
|
|
Syphilis
.... often than women will also have swollen lymph nodes in the groin. At this stage, the chancre is very infectious. It will heal with or without treatment, but the bacteria will remain and begin to spread if untreated.
In the secondary stage, occurring about six weeks later, a generalized rash appears. It can last for weeks or months, perhaps up to a year. Painless ulcers develop in the mouth. Most people discover raised areas around the genitals or anus. The bacteria can be easily spread through mu .....
|
|
|
|
