Severe Combined Immunodificincy The exact incidence of Severe Combined Immunodeficiency (SCID) is unknown, except that it is recognized as rare in most population groups. It is believed that its incidence is in the neighborhood of 1 in 100,000. This number may vary though, due to misdiagnosis, unreported cases, and the like. SCID is actually a group of disorders. These diseases are eith

Snakes Snake is an animal with a long, legless body covered by dry scales. To move about on land, a snake usually slides on its belly. Many snakes have such a flexible body that they can coil into a ball. The eyes of a snake are covered by clear scales instead of movable eyelids. As a result, its eyes are always open. Snakes have a narrow, forked tongue, which they repeatedly flick out.

Aluminum 1. Name & symbol: (*1) Aluminum / Al 2. Atomic number & weight: (*1) 13 / 26.98 3. Common isotope: (*2) Aluminum isotopes’ mass numbers range from Al-23 to Al-30. Only Al-27 (stable isotope) and Al-26 (radioactive isotope) occur naturally. 4. Group number: 13 5. Common uses: (*3) Aluminum has many uses ranging from kitchen utensils to the siding used f

Sphagnum Peat Moss: Ecological And Economical Factors Sphagnum Peat Moss: Ecological and Economical Factors This paper focuses on some important examples of ecological and environmental factors of a simple phenomenon called Sphagnum peat moss. First, a general definition of what peat moss is will be given. Following the definition, important ecological factors such as where peat mo

Shoreline When waves approach shore and "feel the bottom", water piles up and breakers form. This process proves that a shoreline is not static. Primarily these waves, breaking at an angle to the shoreline, are what generate a long shore current that parallels the shore. The long shore current not only moves water in the surf zone, it also moves sediment parallel to the shoreline. Lon

Silent Spring Silent Spring Book Review Rachel Louise Carson (1907-64) was an American marine biologist, and author of widely read books on ecological themes. Carson was born in Springdale, Pennsylvania, and educated at the former Pennsylvania College for Women and Johns Hopkins University. Rachel Carson taught Zoology at the University of Maryland from 1931 to 1936. She was an

Spain Spain is a country in western Europe famous for its colorful bullfights, sunny climate, and beautiful castles. Spain was once a great empire with colonies throughout the world. Spanish language and culture took root and became a part of the culture of many nations. Today, Spain is a prosperous nation with a well-developed economy based on service industries and manufacturing Food

Staphylococcus Streptococci In a healthy human, the internal tissues such as blood, brain, and muscle are generally free of microorganisms. On the other hand, the surface tissues, such as skin, all of the mucous membrane in the mouth, nasal cavity and intestinal tract can easily and readily become available for microorganism to colonize and grow. Depending on the location in the human b

Amazon Rainforest The Amazon Rainforest: Causes and Effects of Deforestation and Resulting Climate Changes With the advancements in technology, and humans becoming more populated and mobile, there became a need and desire for land expansion for agriculture and settlement. These demands for land led to the initial steps of “the transformation from an agrarian to an industrial societ

Sleeping Disorders “Sleeping Disorders” Sleeping disorders can affect ones’ life in many ways. I just found out about some disorders that some people might not even think really exist. In chapter five they give examples of some sleeping disorders that many people have heard of like sleep walking, insomnia, and so on. In class we watched a video were this guy was sound asleep and w

Stickler Syndrome Stickler Syndrome Stickler syndrome is a connective tissue disorder, a genetic malfunction in the tissue that connects bones, heart, eyes, and ears. This disorder is associated with problems of vision, hearing, bone and joint , facial and cleft palate, and heart. More serious problems include the gel which fills the eye deteriorating, the retina deteri

Stem Cell Stem cells are primitive cells found in embryos, fetuses, and recently adults that can grow into 210 types of cells in the body. James A. Thomson, an embryologist at the University of Wisconsin, and John D. Gearhart of the Johns Hopkins University School of Medicine announced on Thursday, November 8 1998 that they and their colleagues had isolated the cell. Scientists have trie

Stem Cell Report Stem cell research, recently a huge issue of debate among Congress, lobby groups, and the general American public is perhaps the single most important decision to be made right now regarding medical research. There are two main groups with differing viewpoints, the “conserve life at any cost” faction and the “medical research for the goodwill of humankind” faction. Bot

Stem Cell Research Stem Cell Research: Promise or Peril' Stem cell research has been one of the most debated issues of the year. It is a subject that has divided political parties, governments and religions. Though there are rewards and benefits to stem cell research, the moral and ethical ramifications behind it are causing a paradigm shift. Though I view the situation as a clear-cu

Stem Cell Research “Stem Cell Research” is a term that has yielded plenty of promising results over the past 10 years. Stem cells are tiny cells that contain the information needed to develop a minuscule embryo into a fully functioning living organism. These cells can be extracted from embryos in early stages of development and can be used to grow or regenerate a wide range of tissue.

Stem Cell Research Stem Cell Research and The Government Is stem cell research wrong' This is a question that most of society faces daily. Until several years ago many people had never heard of stem cells, much less knew what they did. Today though information regarding stem cells and how they function is everywhere. A person can now learn about this subject just by reading a n

Stem Cells Before giving this assignment to work on I was 100 percent against stem cells research. But due to extension research I found out that stem cells can provide us with a myriad of possibilities in medical technology, but not without bringing with it serious moral and ethical dilemmas. For the sake of our children and their children after them, it is imperative that

Stem Cells Stem Cell Research, it’s Past and Current Policy Stem cells are the latest controversial topic in the forefront biological research. No other ongoing areas of research have been the focus of Presidential and Congressional scrutiny, ethical debates and numerous other national media. This lengthy focus on this research is attributed to their amazing but controversial po

Stem Cells After a typical delivery the umbilical cord and the blood within it is discarded. Now researchers have discovered that this blood contains valuable stem cells which can be used in the treatment of several blood disorders. Stem cells are simply undeveloped cells that develop into platelets or red and white blood cells. Stem cells will continue to produce blood cells for an inde

Strokes A stroke is simply defined as a brain attack. It is a cerebrovascular disease, meaning it affects parts of the brain which can effect the way your body works, and the way you think. A stroke occurs when the blood flow to the brain is cut off or clogged. The reason is because the brain needs a constant flow of blood. When the flow is disrupted, a stroke is lurking in the distan

Albert Bandura SOCIAL LEARNING THEORY of Albert Bandura If you've taken an introductory course in economics, you're already familiar with the policy planner's dilemma of deciding whether to allocate limited resources for guns or for butter. The problem is usually posed to illustrate the impersonal market forces of supply and demand, profit and loss. Yet planners are people, and most ind

Space Colonization Space Colonization The human race has always held an irresistible urge to venture out into the unknown for the benefit of man, science, and civilization. Throughout the ages the human race has always had an unquenchable curiosity for the unknown. We have always fed that curiosity by expanding our boundaries for the purpose of knowledge. We strive to get a better

Space Exploration Space Exploration Have you ever wondered if sometime in the near future, if human beings will be able to colonize other planets' For centuries, people have dreamed of leaving the Earth and traveling through space to visit other planets and stars. During the past thirty years, some of these dreams have become a reality. Spacecrafts have orbited the Earth and

Speciel Creation Man Rocks! Geology, the largest “supporter” of evolution, actually gives the theory the biggest problem. Many theories of rock formations and even the fossil record, which are based on the evolutionary model, are contradictions to the theory that they are supposed to support. The field of geology is not limited to the rock formations found upon the earth, but they also

Spiders Table of Contents Classification and Description 3 Ticks and Mites 4 Scorpions 5 Tarantulas Black Widows 6 Brown Recluse Reported Cases of Poisonous Arachnid Bites 7 The Australian Menace 8 Arachnid Description, Sizes 9 First Aid for Arachnid Bites Conclusion 10 Bibliography 11

Sputnik Forty-five years ago, a shiny aluminum sphere made its way into Earth orbit, stunning Americans and changing history. This Earth-orbiting satellite, weighing a mere 184 pounds, was called Sputnik. It all began in 1952, when it was determined that the period from July 1, 1957 to December 31, 1958 would be one with high cycles of solar activity. With this knowledge, the Internati

States Of Matter The definition of matter is something that takes up space and has a mass. It has to have inertia and weight when gravity is present. Matter is commonly known to exist in three states: solid, liquid, and gas. Scientists also acknowledge two other states: plasma and Bose-Einstein condensate (A). The general properties of matter come from having mass and taking up s

American Alligators The American Alligator is one of the largest reptiles in the world weighing from 450 to 500 pounds. The length of an adult varies from 13 to 18 feet. The tail is about half of the length. The alligator and the crocodile are very similar in appearance but there is a difference. The crocodile has a different jaw structure and habitat. The American alligator has a stock

Stress Management Stress Management The first step in combating stress is identifying its origin. Stress can attack from every aspect of our life. The workplace is one of the most common places. There is the everyday threat of downsizing and losing your job, taking on a change of responsibilities and work overload. “ In the 1980’s companies would talk about developing, nurturi

System Aspect Neurotransmitters are chemicals that communicate between nerves. In some ways, neurons are like computers: they receive messages, process those messages, and send out the results as new messages to other cells. In the case of neurons, messages consist of chemicals that interact with the outer surface of the cell membrane. This chemical interaction with the cell membrane cau