Science Essays
Argumentative environment
Argumentative environment Arguementative Environment Currently, a controversy is swirling over the issues raised by the despoiling of the world's natural environment. Poet Stanley Kunitz in "The War Against the Trees" depicts a man watching his neighbor, "who sold his lawn to standard oil" (Kunitz 122), laugh as bulldozers ruin the natural beauty of the grounds with its "forsythia-forays and hydrangea-raids" (Kunitz 123). As industry wages war not just against flowers and shrubbery, but...
Armadillo
Armadillo Armadillo The Armadillo is a very different creature. It has tremendous claws, but no fighting instinct. They have teeth, but not in front, except for the milk teeth some have during infancy. They have long tongues because they catch insects. A strange thing which these animals have is a coat armor, unique among other animals. They have bony plate armor on the outside of their bodies'. Each species has a different pattern for every little plate they carr...
Aromatherapy
Aromatherapy AROMATHERAPY Aromatherapy according to Aromatherapy by Anna Selby is derived from the ancient practice of using natural plant essences to promote health and well-being. It consists of the use of pure essential oils obtained from a wide assortment of plants, which have been steam distilled or cold-pressed from flowers, fruit, bark and roots. Aromatherapy is also the therapeutic use of aromatic substances. Therapeutic use covers both mind and body, whereas aromat...
Appalachian
Appalachian The Appalachian Mountains The Appalachian mountain system dominates the Eastern United States and seperates the Eastern seaboard from the interior with a belt of uplands that extends nearly 1,500 miles from northeastern Alabama to the Canadian border.; They are old, complex mountains, eroded from much older and greater ranges. The present topography is a result of erosion that has carved the weak rocks away, leaving a skeleton of resistant rocks behind as highlands. Becaus...
Apple computers biography of the cfo
Apple computers: biography of the cfo 11/17/99 Gary Whipfler, Corporate Treasurer of Apple Computers gave a very informative presentation about the field of Finance from his own 13 years of experience. As an MBA graduate at Santa Clara, he returned here and gave students some excellent advice about entering the workforce. I think this was the best part of his presentation that I personally took to heart. He gave three, solid advice that will help me evaluate who I am as a person befo...
Aquaria in relation to science
Aquaria in relation to science The hobby of fish keeping is much more difficult than it seems. It is also directly dependant on science. The bacterial cycle is one aspect related to science. As is how different filters work. Water conditions such as temperature, ph, and salinity play a big role in successful fish keeping as well. Science and Fish keeping go hand in hand. When a tank is first started fish waste and excess food begins to decompose at the bottom. One type of bacteria ...
Aquired dyslexia
Aquired dyslexia DISCUSS SOME OF THE WAYS IN WHICH RESEARCH IN ADULT AQUIRED DYSLEXICS HAS ENHANCED OUR UNDERSTANDING OF HOW PEOPLE READ. The use of language is one of the most complex tasks the human brain must carry out. The way in which children acquire language is studied very carefully. This acquisition is enhanced by teaching from skilled language users, but in itself acquired by the child�s own observation and learning. For this reason the acquisition of spoken language is perh...
Archaeology
Archaeology Archaeology There is a saying that goes: One must first have an understanding of the past in order to proceed into the future. An archaeologist�s job, therefore, is very important because they have the crucial role of interpreting the past through archaeological finds. How does an archaeologist go about doing this? How does he interpret his findings? How are the artifacts that he finds related to the behaviors of past humans? Concepts such as patterning and middle range...
Antibiotic resistance 2
Antibiotic resistance 2 During 1997, an event doctors had been fearing finally occurred. In three geographically separate patients, an often deadly bacterium, Staphylococcus aureus, responded poorly to a once reliable antidote--the antibiotic vancomycin. Fortunately, in those patients, the bacteria remained susceptible to other drugs and was eradicated. But the appearance of S. aureus not readily cleared by vancomycin foreshadows trouble. Worldwide, many strains of S. aureus are already r...
Antibiotic resistance in bacteria
Antibiotic resistance in bacteria For about 50 years, antibiotics have been the answer to many bacterial infections. Antibiotics are chemical substances that are secreted by living things. Doctors prescribed these medicines to cure many diseases. During World War II, it treated one of the biggest killers during wartime - infected wounds. It was the beginning of the antibiotic era. But just when antibiotics were being mass produced, bacteria started to evolve and became resistant to thes...
Ants, Little But Mighty
Ants, Little But Mighty Ants, Little but Mighty What is an ant? Ants are insects, they have six legs and each leg has three joints. Ants legs are very strong. With it�s little legs it can lift twenty-five time its own body weight. They have two stomachs. One stomach holds its food, and the second holds food to be shared with other ants. The out side of their body is covered with a hard armor. This is called the exoskeleton. Ants have four growing stages, the egg, ...
Anxiety Disorders
Anxiety Disorders ANXIETY DISORDERS Anxiety is a normal reaction to a threatening situation and results from an increase in the amount of adrenaline from the sympathetic nervous system. This increased adrenaline speeds the heart and respiration rate, raises blood pressure, and diverts blood flow to the muscles. These physical reactions are appropriate for escaping from danger but when they cause anxiety in many situations throughout the day, they may be detrimental to a normal lifestyle....
Anatomy of a muscle cell
Anatomy of a muscle cell Anatomy of Muscle Cells There are three types of muscle tissue in the human body. These muscle tissues are skeletal muscles, smooth muscles and cardiac muscles. Each of these muscle tissues has it very own anatomical makeup, which vary from muscle to muscle. The muscle cells in a muscle are referred to as muscle fibers, these fibers are skeletal muscle fibers, smooth muscle fibers and cardiac muscle fibers. The anatomy of a skeletal muscle fiber is...
Angina
Angina Angina 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, palpitations of the heart, and generally lasts a matter of minutes. Similar pain syndromes may be caused by other diseases,including esophagi...
Animal Research
Animal Research Animal Research For the past 20 years, there has a been an on going heated debate on whether experiments on animals for the benefit of medical and scientific research is ethical. Whether it is or isn't, most people believe that some form of cost-benefit test should be performed to determine if the action is right. The costs include: animal pain, distress and death where the benefits include the collection of new knowledge or the development of new medical therapi...
Animal Testing
Animal Testing Animal Testing Using Animals for testing is wrong and should be banned. They should be entitled to the rights we have. Every day humans are using defenseless animals for cruel and most often useless tests. The animals cannot fight for themselves therefore we must. There should be stronger laws to protect them from laboratory experiments. Although private companies run most labs, experiments are often conducted by public organizations. The U.S. government, the Army an...
Animal captivity
Animal captivity Should Animals be Released Back into the Wild or Kept in Captivity? Many people have heard about Keiko, the killer whale, who starred in the movie Free Willy. After seeing the movie, audiences discovered that the friendly whale in the movie was in a tank too small and in bad health because of that and other complications that come with being taken from its natural habitat to a place where it can't meet it's own needs. Soon a foundation was set u[ and money started pour...
An investigation into electrical resistance
An investigation into electrical resistance Background Knowledge Resistance, in electricity, is a property of any object or substance to resist the flow of an electrical current. The quantity of resistance in an electric circuit determines the amount of current flowing in the circuit for any given voltage applied to the circuit. The resistance of an object is determined by the nature of the substance of which it is composed, its resistivity, accounting for its dimensions and its tempe...
Anabolic steroids just the facts
Anabolic steroids just the facts ANABOLIC STEROIDS JUST THE FACTS Report #5 - 6/28/00 Anabolic steroids are widely abused drugs that promote protein synthesis and decrease protein catabolism in muscle cells. They have been also called performance enhancing drugs because of their ability to dramatically aid the increase of strength, endurance and recovery in athletes. Recent statistics report that over 3 million athletes and bodybuilders in this country alone have used anabolic steroids. ...
Anabolic steroids
Anabolic steroids Are Anabolic Steroids Safe Even if you didn�t have any or little knowledge of steroids and were asked this question, you would probably answer no. Why? Would it be because a high school kid somewhere in California died from taking them? Or would it be because you read it in Readers Digest? Many people think you are selling your soul to the devil when you take steroids. There is an incredible amount of myths, misinformation, and misconceptions about anabolic steroi...
Analysis on electronic data imaging
Analysis on electronic data imaging INTRODUCTION DigiFile has been serving the Houston community since 1992. Originally a litigation support company, they evolved into a total solution service organization for electronic document management. They offer conversion services, both at their production facility and on-site, as well as open architecture data management solutions. While initially servicing the legal industry they have ventured into other markets through associations develop...
Alzhiemers
Alzhiemers Brain cell research offers hope for Alzheimer's NEW YORK, Feb 28 (Reuters Health) -- Taking cells from a region of the brain known as the hippocampus, an international team of researchers have grown functional brain cells in lab cultures. The findings may have profound implications for restoring damaged or degenerative brain cells, which occurs in diseases such as Alzheimer's and Parkinson's. The brain has recently been shown to regenerate some of its...
American alligator
American alligator Alligator mississippiensis is in the family Crocodylidae. This family has existed since the upper Triassic period, but the modern family members appear in the fossil record as little as 80 million years ago. There are three subfamilies, Alligatorinae, Crocodylinae, and Gavaialinae. Some people also include a fourth subfamily, Tomistominae, which contains a single species, the False Gharial. Alligatorinae includes the American and Chinese alligators and the caimans. Cr...
American crocodile
American crocodile The American Crocodile ��How doth the little crocodile Improve his shining tail, And pour the waters of the Nile On every golden scale! How cheerfully he seems to grin, How neatly spreads his claws, And welcomes little fishes in With gently smiling jaws!�� Table of Contents �H Introduction �H Evolution �H Family �H Subfamily �H Anatomy �H Differences between the crocodile and alligator �H Sa...
Amyotrophic Lateral Sclerosis
Amyotrophic Lateral Sclerosis Amyotrophic Lateral Sclerosis (ALS), sometimes referred to as "Lou Gehrig's Disease," is a progressive fatal neuromuscular disease that attacks nerve cells and pathways in the brain and spinal cord. Motor neurons, among the largest of all nerve cells, reach from the brain to the spinal cord and from the spinal cord to muscles throughout the body with connections to the brain. When they die, the ability of the brain to start and control muscle movement dies with ...