Protein analysis of Sea Urchin sperm cells
Essay - 8 pages - Biology
Cells express different gene products in order to achieve specialization and differentiation. Sperm are highly specialized to do nothing more than fertilize an oocyte, and they are thus an excellent candidate for research into cellular specialization.1 A terminally differentiated cell like a...
Technology applications of X-ray diffraction for non-destructive testing
Essay - 8 pages - Electronics, mechanics, engineering & technology
In this article the use of X-ray diffraction in non-destructive testing of materials and machine components is examined. The article contains twelve refeX-ray diffraction finds uses in many applications of science and technology, ranging from applications in the field of pharmacy for the...
The efficacy of Needle Exchange Program
Essay - 6 pages - Medical studies
A review of the literature concerning the efficacy of needle exchange programs show that such programs work well in reducing rates of HIV and other infections among IV drug users. Further, such programs neither encourage addiction or increase rates of experimentation with intravenous drugs....
Stress and postpartum depression
Essay - 6 pages - Medical studies
Many women experience some mood changes after childbirth. The mild form of mood alteration experienced by two-thirds of mothers following the birth of a child is commonly known as postpartum blues. This is a mild, transient change in mood which usually begins within one to five days following...
Vehicle interlock systems- An introduction and overview
Essay - 9 pages - Electronics, mechanics, engineering & technology
Vehicle Interlock Systems, or “Breathalyzer” are systems of alcohol-control installed into vehicles, with the purpose of prohibiting/controlling driver alcohol consumption. The goal of this invention was to reduce or eradicate the ability and/or frequency of drunk driving on the...
Software development agreement
Standard contracts - 10 pages - Computer science
1. [ ] Limited, (Company number ), the registered office of which is at [ ](the "Client") AND 2. [ ], the registered office of which is at [Address ] (the "Developer") BACKGROUND: A. The Client wishes to have developed the Software; and B. The Client has agreed to...
Top facts about Anorexia Nervosa
Tutorials/exercises - 5 pages - Medical studies
In a society that is becoming more commercialist and consumer-driven, it is inevitable that standards of beauty become the focus of many, especially women who are the general targets of many advertisements and products. It is because of the prevalence of the idea that “thin is in” that...
Benzodiazepine/ GABAA receptor characteristics
Essay - 9 pages - Biology
GABAA (?-aminobutyric acidA) receptors are recognized as the chief inhibitory neurotransmitter receptors in the mammalian central nervous system. The GABAA receptors are pentameric membrane proteins consisting of five subunits. The subunits can combine in different ways to form GABAA receptors,...
Music as therapy: The pain and anxiety reducing properties of music
Essay - 5 pages - Medical studies
This literature review examined the effect of music on pain and anxiety in preoperative patients and burn victims as well as older people with osteoarthritis. Studies that explored the effect of music intervention generally allowed subjects to listen to self-selected music during the trial...
Huntington and the pathogenesis of Huntington's disease (HD)
Tutorials/exercises - 5 pages - Medical studies
Huntington's disease (HD) is a progressive neurodegenerative disorder with an established genetic origin. Adult onset HD is characterized by motor dysfunction, cognitive decline and psychiatric disturbance (Ranen et al., 1993 and Harper, 1996). Initially symptoms include depression, irritable...
Methods of transmission: Dengue fever
Tutorials/exercises - 6 pages - Medical studies
The adventurous tourist, obliviously hacking his way through the jungles of Brazil, is first aware of a faint buzzing noise, then a tiny sting on his arm. The smack of his hand seems to have taken care of the problem: he has merely been bitten by a mosquito, so it seems there is no reason to...
Is abortion immoral?
Thesis - 8 pages - Medical studies
Abortion is an issue that has probably become one of the most controversial issues that are debated in the United States and in other countries today. Different schools of thoughts have different ideas and opinions regarding abortion, some ideas are pro-abortion and some argue for the abolishment...
Applications of aqueous equilibria
Presentation - 90 pages - Physics
When AgNO3 is added to a saturated solution of AgCl, it is often described as a source of a common ion, the Ag+ ion. By definition, a common ion is an ion that enters the solution from two different sources. Solutions to which both NaCl and AgCl have been added also contain a common ion; in this...
Equilibrium: Heat energy
Presentation - 90 pages - Physics
Heat is energy flowing from a high temperature object to a low temperature object. When the two objects are at the same temperature, there is no net flow of energy or heat. That is why a covered cup of coffee will not be colder than or warmer than the room temperature after it has been in there...
Reconciling truth and fact: Abortifacient herbs in a medicalized world
Essay - 7 pages - Medical studies
Today, we know everything. We not only know that the stars are pretty and move through the sky with the seasons, we know what they are made of and why they appear to move. We not only notice the soothing effects of the opium poppy, but have identified the neural circuitry involved in its...
Unilateral lesions of the Nigrostriatal pathway
Tutorials/exercises - 20 pages - Biology
The nigrostriatal system through the basal ganglia is essential for regulating motor movement. Normal motor behavior requires a delicate balance between the excitatory direct pathway and the inhibitory indirect pathway modulated by the D1 and D2 receptors, respectively. Unilateral destruction...
Gender differences in food foraging behaviour in mallard duck
Essay - 4 pages - Medical studies
The species Anas platyrhynchos, or the common Mallard duck, is a very well-documented organism, being found in virtually all parts of the world, with the exception of Antarctica. Like most other dabbling ducks belonging to the Anatinae family, the mallard duck is known to be noisy (or...
Occupational hazards of emergency first responders
Essay - 5 pages - Medical studies
Emergency responders, as defined by police officers, firefighters, and emergency medical personnel, are often exposed to potential hazards within their work, due to the very nature of their work. Many of these people are heroes in that they willingly sacrifice their lives for the altruistic...
Autoimmune disease and rheumatoid arthritis
Essay - 4 pages - Medical studies
An autoimmune disease occurs when the body makes antibodies against some of its normal tissues (autoantibodies). In other words, it fails to distinguish “self” from “non-self” cells. The immune system attacks the naturally existing body tissues by causing lymphocytes to become...
Difference between Anorexia and Bulimia Nervosa
Essay - 4 pages - Medical studies
The article goes over bulimia nervosa in a brief but descriptive article which is broken up in to three pages. Individuals with bulimia nervosa periodically engage in discreet eating periods, which can be considered to be binge eating, which is then followed by act of purging. This is a recurrent...
Physician-Assisted Suicide - published: 20/07/2008
Essay - 5 pages - Medical studies
My cousin died after battling a brain tumor for six years. Before being diagnosed, she had moved to Dallas, got engaged and planned to be a teacher. At her time of death, she did not even look like the same person. One of my mother's closest friends, Joan, a registered nurse, died of cancer a few...
Hardness test of metals: An experiment using the Brinell test and the Rockwell test
Essay - 6 pages - Physics
Hardness has been defined in several ways over time, mostly by physicists, metallurgists and engineers. Different definitions range from hardness being defined as a collection of properties of a material more or less related to each other to resistance to permanent indentation. The difficulty to...
The internet is breaking: Internet and its infrastructure
Essay - 4 pages - Computer science
The Internet has been hailed as one of the greatest technological advancements of human history. It brings people together, and gives people unprecedented access to information from every part of the world. In the past decade the Internet, and its number of uses and applications, have grown...
Trip down memory lane : Hallucinogens and its effects
Essay - 3 pages - Medical studies
Taking hallucinogenic drugs can be a trip down heaven or hell. Hallucinogens are a type of drug that distorts or alters the way a person perceives the world. Taking hallucinogens is like entering into a completely different world which simultaneously became part of the human world. The emerge of...
The effect and use of plants to treat or prevent cancer
Essay - 13 pages - Medical studies
Cancer is considered one of the most dreaded diseases that have spread with increasing incidence throughout the world. Cancer is spreading at an alarming rate with an estimate of over 10 million new cases and six million deaths in the year 2000 alone and the incidence and mortality of cancer have...
Fetal alcohol syndrome: How a mother can kill her child?
Tutorials/exercises - 7 pages - Medical studies
A pregnant woman is at risk of many health problems especially because she is actually having two lives to take care of, herself and the unborn child inside her. This is the reason that a woman should be extra careful in all the activities she engage in, in order to protect both herself and the...
Stress management for ministers and church leaders
Essay - 8 pages - Medical studies
We are all familiar with the little word “stress.” What is stress? Stress is actually normal for an individual to experience since stress can act positively to motivate us to do things. The adrenaline rush keeps us alive and excited. Stress is present in everyday life; in fact, the...
Measurement of lactate threshold
Essay - 3 pages - Medical studies
In order for strenuous exercise to continue, high-energy phosphates must be resynthesised at a rapid rate (McArdle et al). Glycogen stored in the muscle is the main source of energy during intense exercise. This results in the phosphorylation of ADP through anaerobic glycolysis and leads to the...
The main architectural features of the RISC (Reduced Instruction Set Computer)
Essay - 6 pages - Electronics, mechanics, engineering & technology
The world of computer technology has evolved rather rapidly in the past two decades. Interestingly, while the number of languages and programs available has increased, the specific architectures that are used for building microprocessors have not changed that dramatically. What this effectively...
An analytical essay on kidney stones
Essay - 5 pages - Medical studies
Research on kidney stones demonstrates that this painful condition has been part of human physiology since the time of the Egyptians (Cause and…, 1998). Although kidney stones are one of the most painful disorders that can be experienced by the patient, they are also one of the most common....
