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Hepatitis B can be prevented with a highly effective vaccine, but this year ten to thirty million people will become infected with the hepatitis B virus. I feel that because this disease is preventable, only knowledge can help reduce the number of people infected. Hepatitis B is a serious liver disease caused by the hepatitis B virus...
Laser is an acronym for light amplification by stimulated emission of radiation. In the last century many types of lasers have been used for many different applications from welding to surgery to military and even many uses in every day life by harnessing the principles of light and stimulated emission. To understand how lasers work we m...
Inhalants Inhalants are very dangerous. The come from ordinary house hold products like aerosols. Inhalants are used to get a high. They are being use by younger people. Inhalant use is intentionally breathing in a vapor of gas with the purpose of reaching a high. Inhalants are legal everyday product, which have a useful purpose....
Compounds That Compose the Human Body There are five major groups of compounds that compose the human body. They are carbohydrates, lipids, proteins, nucleotides, and water. These are all very important to humans and without them we would not be able to survive. They have many functions that encourage a human cell and a human body to f...
Mars Mars,is a planet in the solar system.I'ts named for the Roman god of war Ares.Mars is the fourth planet from the sun.Mars has two small heavily craterd moons,Phobos and deimos,astronomers think they are areastroid like objects captured by the planet very early in history.Phobos is about 13 miles across;Deimos,is only 7.5 miles.Ma...
Computer Monitoring, Forging Tools for the Future Computer Monitoring is most often intended to improve efficiency and effectiveness in the workplace, but with good intentions comes the opportunity for abuse by employers and employees alike. An example of both can be found in an article taken from The Futurist. Kristen Bell De Tienne...
A LOOK AT ANEMIA RELATED TO NUTRITIONAL ISSUES TABLE OF CONTENTS INTRODUCTION.........................................................................................1 REVIEW OF LITERATURE......................................................................... METHODOLOGY..............................................................
refers to the pain arising from lack of adequate blood supply to the heart muscle. Typically, it is a crushing pain behind the breastbone in the center of the chest, brought on by exertion and relieved by rest. It may at times radiate to or arise in the left arm, neck, jaw, left chest, or back. It is frequently accompanied by sweating, palpi...
Solar cells today are mostly made of silicon, one of the most common elements on Earth. The crystalline silicon solar cell was one of the first types to be developed and it is still the most common type in use today. They do not pollute the atmosphere and they leave behind no harmful waste products. Photovoltaic cells work effectiv...
"The Health Risks of Secondhand Smoke Are Exaggerated," according to an article written by W. Kip Viscusi, which is published in 1997 in Smoking, Opposing Viewpoints. The article, is not effective. Not only are the sources of the evidence not clearly identified, but also Viscusi uses logical fallacies, and the organization is confusing. The...
Mononucleosis is a disease caused by the Epstein-Barr virus (EBV), which is a member of the herpes family. The herpes family also includes viruses that cause cold sores, chicken pox, genital herpes, and birth defects (7). Mono, short for mononucleosis (3) ?gets its name from the fact that it causes a person?s white blood cells to become disto...
On the approach to the second millennia, 'cloning' and the ability to manipulate and modify DNA has increased immensely. The field of genetic reproduction is creating a variety of unknown social and ethical consequences that are particular to our present time. Such consequences, although unknown now, of the manipulation of nature at such a prim...
Hurricanes A natural hazard is when extreme events which cause great loss of life and or property and create severe disruption to human lives, such as a hurricane. Editor Philip Whitefield brings up an important point in ? Our Mysterious Planet? when he comments; ?At a time when we know how to aim a space probe directly at M...
"" is the force with which your heart pumps blood through the body. Occasional increases in blood pressure levels are not unusual. Hypertension Hypertension is high blood pressure. When heart beats (contracts and relaxes) it pumps out a certain volume of blood. The maximum arterial pressure, measured in mm Hg, determines the sys...
