Science Essays
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Amphetamine
Amphetamine or Amfetamine, also known as alpha-methyl-phenethylamine, phenyl-isopropylamine, beta-phenyl-isopropylamine, and benzedrine, is a prescription stimulant commonly used to treat Attention-deficit hyperactivity disorder (ADHD) in adults and children. It is also used to treat symptoms of traumatic brain injury and the daytime drowsiness symptoms of narcolepsy and chronic fatigue syndrome. Initially
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Amphibian Decline
Amphibian decline Amphibian population has dramatically decreased in many different areas of the world. In the past twenty-five years we have been investigating possible causes for this decline. According to the published research there are factors that may contribute to the decline of amphibians such as habitat destruction, disease, and
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Amylase Case
Introduction The enzyme which is amylase is found in the saliva of humans and animals. Amylase causes a chemical reaction in the polysaccharide starch that breaks down the glucose molecules into maltose. When it dissolves into iodine solution, starch will change to a dark blue black as well as maltose.
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Amyotrophic Lateral Sclerosis
One day you’re a vibrant, healthy young individual. The next day, you find out you have a rare, currently untreatable, disease. You are diagnosed with amyotrophic lateral sclerosis (ALS), a neurodegenerative disease that causes degeneration throughout the brain and spinal cord. This disease is generally characterized by muscle weakness, but
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Amyotrophic Lateral Sclerosis (als)
Abstract: ALS is a disease in which the causes are unknown and the effects are devastating. Along with great physiological damage there is great mental damage that a patient that had ALS must endure. A disease with a great influence in today's life and the life of those in the
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An American Epidemic Diabetes
An American Epidemic Diabetes Diabetes is a disorder in which the body does not produce enough insulin, resulting in too much sugar in the bloodstream. Type 1-diabetes is a type of diabetes which is also called juvenile onset diabetes. It is an auto-immune system disease where the body's immune system
Rating:Essay Length: 484 Words / 2 Pages -
An Analysis of a Civil Action
An Analysis of A Civil Action A Civil Action is a movie based on a real life case that took place several years ago. Several families of Woburn, a small town, were alleging that chemicals spilled by local plants had contaminated their drinking water. Reckless, careless dumping of chemicals at
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An Analysis of the Structure and Culture of Strategic Mining Solutions in the Context of the External Environment with Respect to Future Challenges and Recommended Changes
EXECUTIVE SUMMARY Strategic Mining (SM) is capable of converting challenges into opportunities, as evaluated in the context of the company expanding its operations into Africa. The company promotes a participative management style which greatly benefits communication at all levels. The Directors of SMÐŽ¦s Board are technically and managerially highly skilled
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An Argument for Euthanasia
An Argument for Euthanasia Euthanasia is defined as, "The act or practice of putting to death painlessly a person suffering from an incurable disease." Euthanasia can be traced back as far back as the ancient Greek and Roman civilizations. It was sometimes allowed in these civilizations to help others die.
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An Assessment of the Greatest Medical Breakthrough - the Use of Pluripotent Stem Cells
An Assessment of The Greatest Medical Breakthrough--the use of Pluripotent Stem Cells Team B Learning Environment Res110 Mr. Hoeft August 20, 2004 Abstract A critical review of the pro and con analysis, of arguably, the most controversial issue of the 21st century--the use of pluripotent stems cells. In addition,
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An Evaluation of Three Hydrophylic Ointments in Skin Conductance Monitoring
INTRODUCTION The purpose of the research project was to evaluate the effectiveness of three different electrolyte media used for electrodermal recordings. The specific aims for this project were to determine which of three compounds, differing only in the base medium, provided optimal skin conductance monitoring, did not disrupt the skin
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An Experiment into the Effect of Sugar Concentration on Osmosis
An experiment into the effect of sugar concentration on osmosis Background information Osmosis is the movement of water molecules from a dilute solution to a concentrated solution through a partially permeable membrane. The molecules will continue to diffuse until the area in which the molecules are found reaches a state
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An Experiment to Test Whether Submaximal Tests Are Valid Predictor of V02 Max.
An experiment to test whether Submaximal tests are valid predictor of V02 max. Abstract: Introduction: Maximal oxygen uptake can be defined as the amount of 02 that a person can extract from the atmosphere and then transport and use in tissues (Kent 2006). McArdle et al (2006) explains that V02
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An Exploration of How to Prevent the Effects and Causes of Air Pollution
An Exploration of How to Prevent the Effects and Causes of Air Pollution Air pollution has not always been an area of individual problem but has always been a big major of global problem. In fact, air pollution is not a new issue to us. When I was in high
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An Inconvenient Truth
REACTION PAPER ("AN INCONVENIENT TRUTH") We have experienced a lot of changes lately: huge floods due to stronger typhoons, and noticeable changes in our weather from too much heat during daytime and sudden rain in the afternoon. Based on what I have seen in the movie, "An Inconvenient Truth", we
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An Inconvienent Truth
An Inconvenient Truth This paper is written as a post reflection on the documentary, An Inconvenient Truth. This documentary has won an academy award, and has been scrutinized by political, scientific and academic institutions for its controversial subject. Presented by Al Gore, the previous vice president and candidate for president,
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An Inducible Activator Produced by a Serratia Proteamaculans Strain and Its Soybean Growth-Promoting Activity Under Greenhouse Conditions
An inducible activator produced by a Serratia proteamaculans strain and its soybean growth-promoting activity under greenhouse conditions Yuming Bai, Alfred Souleimanov and Donald L. Smith1 Department of Plant Science, Macdonald Campus of McGill University, 21,111 Lakeshore Road, Ste Anne de Bellevue, Quebec, Canada H9X 3V9 Received 23 October 2001; Accepted
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An Innovative Automatic Teller Machine
An Innovative Automatic Teller Machine Introduction Automatic Teller Machine is an highly efficient machine which is frequently used in every bank. It makes people easy and convenient to withdraw cash from the bank without waiting in line. According to the ATMIA's (n. d.) report, there have been more than 2.2
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An Introduction to Genetics
I. An Introduction to Genetics Genetics is the science of heredity. The discipline has a rich history and involves investigations of molecules, cells, organisms, and populations, using many different experimental approaches. Not only does genetic information play a significant role during evolution, its expression influences the functioning of individuals at
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An Investigation into Measuring the Biomass of an Organism
An Investigation Into Measuring The Biomass of an Organism ABSTRACT In the investigation that was carried out, the biomass of an organism was to be measured. In order to accomplish this, the dry mass of the substance had to be determined. In this particular investigation, two pieces of beef meat
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An Investigation into the Factors Affecting the Rate of the Reaction Between Calcium Carbonate and Hydrochloric Acid
An Investigation into the Factors Affecting the Rate of the Reaction between Calcium Carbonate and Hydrochloric Acid A chemical reaction is the process by which atoms or groups of atoms are redistributed, resulting in a change in the molecular composition of substances. The reaction rate is how quickly a reaction
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An Investigation on the Effects of Light Intensity on Photosynthesis
Plan I plan to investigate how light intensity affects the rate of photosynthesis in pondweed. The rate of photosynthesis will be measured by the number of bubbles given off (considering that oxygen is produced as a waste gas during photosynthesis). The light intensity is measured by the distance between the
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An Investigation to See How Much Oxygen Is Given off When Different Concentrations of Catalase Are Added with Hydrogen Peroxide.
An investigation to see how much oxygen is given off when different concentrations of catalase are added with hydrogen peroxide. Aim: To see if changing the concentration of catalase (found in celery) with hydrogen peroxide affects the amount of oxygen given of. Background Information: (Hydrogen peroxide - H2O2 1/2O2+H2O) Enzymes:
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An Investigationin to the Effect of Ph on the Activity of Potato Tissue Catalase
An Investigation Into The Effect Of PH On The Activity Of Potato Tissue Catalase Aim The aim of my investigation is to see how pH affects the activity of potato tissue catalase, during the decomposition of hydrogen peroxide to produce water and oxygen. Catalase + 2H2O2 Catalase + 2H2O +O2
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Anabolic Steroids
The numbers are staggering; in the United States 1 to 3 million people currently use or have used anabolic steroids. These dangerous drugs are not only a controversial issue in Olympic and professional sports, but recent reports show that adolescent teens use these drugs. The image of the lean and
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Anabolic Time Bomb
The Anabolic Time Bomb Following the enormous outcry for drug tests during the Olympics and within the last year of professional sports, the integrity of many leagues and the ability of many athletes have been challenged. Some believe these accusations are being made out of spite, or the need for
Rating:Essay Length: 594 Words / 3 Pages -
Análisis Descriptivo De La Muestra
Problema 2 Análisis descriptivo de la muestra La muestra que se ha dado para analizar, está compuesta por un total de 230 personas pensionadas e ingresadas en el 2006 al sistema. En la base de datos, se puede ver que cada sujeto esta nombrado a través de un folio. Además,
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Analyse of Vertebrate Forelimbs
1. Gather information from secondary sources (including photos/diagrams/models) to observe, analyse and compare the structure of vertebrate forelimbs. Comparative anatomy is the study of the differences and similarities in structure between different organisms. An example of comparative anatomy is the pentadactyl limb which is the basic five-digit bone structure of
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Analyse Olympische Deelnemers
Analyse Olympische deelnemers Teneinde een beeld te kunnen vormen over de "staat van dienst" van olympische deelnemers is een analyse gemaakt met betrekking tot de reeds geleverde prestaties van de gekwalificeerde deelnemers aan het olympisch taekwondo toernooi te Sydney 2000. Hierdoor moet duidelijk worden aan welke voorwaarden Nederlandse topsporters moeten
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Analyse the Effectiveness of Improvements
Since the end of 1990s the internet and technologies in telecommunication, softwares and hardwares in computer science had been developed to a new level. New dimensions have been brought to our daily life, such as online banking system. It is a completely new method of interaction between users and banks
Rating:Essay Length: 1,304 Words / 6 Pages