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13 Nov 2007
doc

Mushroom Toxicity

Tutorials/exercises - 3 pages - Biology

Mushrooms are often considered the vermin of the vegetable world, likened to snakes, slugs, and worms. Some are regarded as mystical and others as delicacies. The location of tasty morels is passed from generation to generation, closely guarded from strangers. Each autumn and spring, foragers...

13 Nov 2007
doc

Toxic Plant Ingestions

Tutorials/exercises - 6 pages - Biology

Plants have served as both poisons and medicines. Dioscorides listed several hundred plant species in his first Materia Medica in 78 BC. Galen, in second-century Rome, catalogued plants, including those containing opiates, ergotamines, and other alkaloids. Pharmacognosy was established as an...

13 Nov 2007
doc

The Effect of Ampicillin Amounts and Incubation Time on E. Coli Growth

Tutorials/exercises - 5 pages - Biology

Penicillin, derived from the soil mold Penicillium, was the primary antibiotic used to cure bacterial infections after being discovered in 1928 by Alexander Fleming. Briefly following its discovery and mass production bacteria began expressing resistance to this Nobel Prize winning medical...

13 Nov 2007
ppt

Generating Electricity

Presentation - 10 pages - Physics

The blade of a turbine is tilted an angle. Movement of the air is channeled creating low and high pressures on the blade that force it to move. The blade is connected to a shaft which in turn is connected to an electrical generator. The mechanical energy of the turning blades is changed into...

23 Oct 2007
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Bear Attacks

Tutorials/exercises - 5 pages - Biology

Bears are one of the most widely distributed animals in the world. At least one of the eight bear species currently exists in Asia, Europe, North and South America, and the Arctic. Bears in Africa became extinct several million years ago. Australia and Antarctica are the only continents where...

23 Oct 2007
doc

Development in LSD Synthesis

Essay - 3 pages - Physics

LSD, the common abbreviation for Lysergic Acid Diethylamide-25, often termed “acid” in the streets, is one of the most potent hallucinogenic substances known to man. The chemical was actually synthesized for the first time in 1938 by a German scientist named Albert Hoffman. However, in...

23 Oct 2007
doc

Crohn's Disease

Essay - 2 pages - Medical studies

Crohn's Disease is a form of ileitis, or inflammation of the ileum, which is the terminal portion of the small intestine. It is characterized by abdominal pain, ulceration, and fibrous tissue buildup in the terminal portion of the ileum. This is a relatively new disease, with proper medical...

23 Oct 2007
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Fermentation Lab Report

Case study - 4 pages - Biology

Cells need energy to do work to carry out metabolic processes that keep them alive and functioning. This energy is stored in the form of ATP, which stands for adenosine triphosphate. All plant and animal cells use a process known as cellular respiration to make ATP from carbohydrates. Plant cells...

23 Oct 2007
doc

Bacterial transformation lab report

Case study - 2 pages - Medical studies

Bacterial transformation is the transforming of a bacterial cell using plasmids spliced with various types of DNA from other cells (Miyazaki, 201). Instead of a nucleus with chromosomes, bacterial cells have one large circular chromosome in their cell. They also have much smaller rings of DNA...

23 Oct 2007
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Osmolarity and Body Volume

Case study - 3 pages - Medical studies

Water comprises a very large part of an organism's body. The delicate balances within the systems of an organism involve the concentrations of, to name a few, Na+, K+, Cl-, and Ca2+ salts (Dilger and Collins, p. 9). There are two types of fluids within organisms; the ICF (intracellular fluid) and...

23 Oct 2007
doc

Frog CV Lab Report

Case study - 3 pages - Medical studies

One of the most important organs in the body is the heart. Of course, this organ is of great importance not only in humans but in all vertebrates. Blood, which carries nutrients, oxygen, and wastes from organ to organ within the body is pumped by the heart. Without the heart's pumping action,...

23 Oct 2007
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Reflex Physiology Lab Report

Case study - 4 pages - Medical studies

Our experiment was concerned with the reflex response in humans, and how it compares to a voluntary neural pathway as well as how it is enhanced by what is known as the Jendrassik Maneuver. Our hypothesis was that the reflex response would be faster than the voluntary response, and that with the...

09 Oct 2007
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Bacterial Transformation

Case study - 2 pages - Medical studies

The process of genetic transformation is an important tool used in biotechnology. It has been used in agriculture to create plants that are resistant to different kinds of conditions. In medicine it is being used to try and create bacteria that produce insulin which can be used to treat diabetes....

09 Oct 2007
doc

ATP Production through Fermentation

Case study - 2 pages - Biology

Many people are already indirectly familiar with the processes of fermentation, from the baker to the body builder. The baker, when baking his bread, adds yeasts that produces CO2, which makes the bread rise. Alcohol is also produced during this fermentation but it quickly evaporates during the...

09 Oct 2007
doc

Ka and Buffer Titrations

Case study - 2 pages - Physics

As living things, we are highly sensitive to changes in our environment; this doesn't only mean changes outside our body, but changes from within also. For the cells in our bodies to function properly a certain temperature and pH has to be maintained. Even a slight change in pH inside our bodies...

09 Oct 2007
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Lab report on reflexology

Case study - 8 pages - Medical studies

Reflexes are the body's involuntary responses to various stimuli. They are controlled in large part by the human nervous system which has three main functions: sensory input, integration, and motor output. Sensory input is due to sensory receptors throughout the body collecting information about...

05 Oct 2007
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Information Systems Studies

Essay - 2 pages - Computer science

Ever since Microsoft released its newest installment in the Windows operating system line-up, titled Vista, computer users around the globe have been having mixed feelings about the highly anticipated product. Since its release in November of 2006, Vista has been slowly attempting to dominate the...

02 Oct 2007
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Reflex Physiology

Case study - 5 pages - Medical studies

A human specimen can contain a number of involuntary responses (responses not consciously controlled) to outside stimuli; science calls this response a reflex. Some reflexes disappear as e mature into adults, such as suckling, grasp reflex, Moro reflex and several others (Wikipedia, the Free...

02 Oct 2007
doc

Osmolarity and Body Volume - published: 02/10/2007

Case study - 2 pages - Biology

Our bodies and many other animals' cells extracellular and intracellular fluids are mainly comprised of water with ionized salts in solution. These salts, mainly Na+, K+, Cl-, Ca2+, and Mg2+ ( Foundations Of Biology: Cell and Organ Physiology, Faculty of the Department of Neurobiology and...

02 Oct 2007
doc

Frog Cardiovascular System

Case study - 3 pages - Biology

The heart is probably one of the most important muscles in an organism's body. It is what drives the flow of nutrients, oxygen, and other vital cells across an organism's body. In different organisms the heart can have slightly different anatomical features as compared to other organisms. In...

02 Oct 2007
doc

Hydronium Concentration of Water and its Effect on Fast Plant Growth

Case study - 4 pages - Biology

Acid rain has always been said to damage the plant life which absorbs the acid water as it would regular water. In this experiment we have decided to see whether this is true and if acid content of water has any effect on plant growth. We have setup an experiment and predict that pH will affect...

02 Oct 2007
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Not 'To Study or Not to Study,' But How?

Essay - 5 pages - Biology

To highlight what constitutes the foundation of Man, anthropologists, ethnographers, and theologians like Jonathan Smith, Claude Lévi-Strauss, and Clifford Geertz constantly study “savage” societies, societies very different from our own. Scholars endlessly debate which characteristics...

02 Oct 2007
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Lab Report: Fermentation

Essay - 2 pages - Biology

Fermentation is the anaerobic conversion of sugar to carbon dioxide and alcohol by yeast. It uses the NADH produced by glycolysis and “regenerates” more NAD+ which is then again used by glycolysis. The process of Alcohol fermentation is the one we will be focusing on. In this process...

02 Oct 2007
doc

Life vs. Politics

Essay - 4 pages - Biology

Thousands of years ago, before the thought of a cell had ever crossed anybody's mind, man revolutionized society with advances such as fire, the wheel, irrigation and the telescope. Man has now arrived at the next step, shall we say “the wheel” of our lifetime, stem cells and in...

02 Oct 2007
doc

DNA I & II

Essay - 2 pages - Biology

DNA technology is vital to our technological progress as a society. Without such things as gene therapy which is part of DNA technology many medical feats would not have been accomplished. DNA manipulation is used in many aspects of life, ranging from farms to hospitals and the gene cloning we...

02 Oct 2007
doc

Effects of Decreasing pH on Freshwater Ecosystems Inhabited by Snails and Salvinia

Essay - 3 pages - Biology

The ecosystem of a freshwater lake, stream, and river is greatly influenced by the environment it is in. Temperature, light, nutrients, rainfall amounts, species composition and organic or inorganic pollutant levels all differ from lake to lake, depending on the circumstances of their...

28 Sep 2007
doc

The Goodness of Meat

Tutorials/exercises - 2 pages - Medical studies

Imagine a life where people are weak and constantly ill. Imagine everyone being bed ridden and unable to operate the human body at the level appreciated today. By removing meat from a diet, this is a scenario that becomes a real life horror movie. Eating meat is an essential part of everyone's...

26 Sep 2007
doc

Experiment: Mole Ratios, Limiting and Excess Reactants and Precent Yield

Case study - 4 pages - Physics

The purpose of this lab is as follows: To use mole ratios to predict the amount of precipitate formed, to use mole ratios to study the effect of reactant molarity on the yield of product, to use mole ratios to study limiting and excess reactants, and to design an experiment which achieves the...

26 Sep 2007
doc

Chemical Changes

Case study - 6 pages - Physics

The purpose of this lab was to find out the indications of chemical changes and reactions when mixing two different substances, which are listed specifically in the Observations section. The purpose is also to find out how a percent by mass solution is made up. The data and observations that is...

26 Sep 2007
ppt

Neuropathic Pain

Presentation - 33 pages - Medical studies

Neuropathic pain is defined as pain in association with nerve injury or dysfunction. It may be triggered by numerous insults including direct nerve injury, infection, metabolic dysfunction, autoimmune disease, neoplasm, drugs, and neurovascular disorders. It may reflect the pathologic operation...