Radiology of the Heart
Presentation - 62 pages - Medical studies
The heart casts a homogeneous shadow on the chest film. No internal detail can be seen within its contours because the radiodensities of blood, myocardium, and other cardiac tissues are so similar that one cannot be distinguished from the others. Only two borders of the heart, where it contacts...
Cardiac Function and Circulatory Control
Presentation - 90 pages - Medical studies
The heart is a muscular pump connected to the systemic and pulmonary vascular systems. Working together, the job of the heart and vasculature is to maintain adequate circulation of blood to the organs at rest and during periods of exercise. To understand perturbations that cause symptoms and...
Myocardial Perfusion Imaging
Presentation - 44 pages - Medical studies
The techniques of nuclear cardiology permit the noninvasive imaging of myocardial perfusion under stress and resting conditions and of resting regional and global function using radionuclide imaging agents and gamma or positron cameras with associated computer processing. Myocardial perfusion...
Epidemiology of Cardiovacular Disease
Presentation - 56 pages - Medical studies
The three major clinical manifestations of atherosclerotic cardiovascular disease (CVD) are coronary heart disease (CHD), stroke, and peripheral arterial disease (PAD). Atherosclerosis also can be found in other arterial beds, especially the renal arteries, where it causes about two thirds of...
Principales of Occupational and Environmental Medicine
Presentation - 46 pages - Medical studies
In their work, people can be exposed to dangerous chemicals, hazardous physical agents, emotional stress, and trauma. Any of these occupational exposures can cause disease—sometimes immediately and sometimes after an interval of years or decades. In addition, tens of millions of people of...
Drug Abuse Treatment and Relapse Prevention
Presentation - 28 pages - Medical studies
Patients who use illicit drugs benefit from treatment if they recognize that their substance use is a problem. The transtheoretical model considers a patient on a continuum from precontemplation (denial) toward maintenance (abstinence/recovery). The clinical approach should be tailored to the...
Complementary and Alternative Medicine
Presentation - 70 pages - Medical studies
Despite dramatic advances in medical science and evidence-based practice, many people turn to other healing approaches, some derived from ancient medical traditions and others from new-age concepts. Although extraordinarily diverse in their nature and purpose, these approaches share enormous...
Tobacco and Health
Presentation - 64 pages - Medical studies
Currently, about 46 million individuals in the United States are cigarette smokers, including 26% of men and 22% of women. People who are less well educated and/or have unskilled occupations are more likely to smoke. Smoking is responsible for about 430,000 preventable U.S. deaths annually. A...
Ionizing Radiation Injury
Presentation - 52 pages - Medical studies
Ionizing radiation occurs as electromagnetic waves of extremely short wavelength and as accelerated atomic particles (e.g., electrons, protons, neutrons, a-particles). The injuries caused by ionizing radiation include mutagenic, carcinogenic, and teratogenic effects and various acute and...
Inborn errors of metabolism
Presentation - 84 pages - Medical studies
Metabolism is a collective term for integrated biochemical processes of the intact organism, differentiated organ, cell, and subcellular organelle. Normal metabolism enables homeostasis for the organism by maintaining anabolic and catabolic flow of substrates to products. In the early 20th...
Biology of Ageing
Presentation - 48 pages - Medical studies
It is useful to think of organisms as protein-synthesizing factories. If that factory is to function at very high levels of efficiency and stability for very long periods of time, the builder should start with an excellent set of blueprints (hence the importance of understanding the...
Urinary Incontinence
Presentation - 34 pages - Medical studies
Urinary incontinence is defined as involuntary loss of urine of sufficient severity to be a health and/or social problem. Although it is commonly hidden and not discussed with health professionals, urinary incontinence is a prevalent, morbid, and expensive condition. Half of young and...
Violence and Injury
Presentation - 41 pages - Medical studies
Serious violence and injury have life-altering consequences for victims and their families that often cannot be reversed. Prevention and treatment must be priorities. Violence in the United States is a public health epidemic that is caused by institutional and personal actions. The root causes...
Gonococcal Infections
Presentation - 82 pages - Medical studies
Gonorrhea is a sexually transmitted infection of epithelium and commonly manifests as cervicitis, urethritis, proctitis, and conjunctivitis. If untreated, infections at these sites can lead to local complications such as endometritis, salpingitis, tuboovarian abscess, bartholinitis, peritonitis,...
Richard Dawkins, "The selfish gene"
Book review - 3 pages - Biology
In The Selfish Gene, Richard Dawkins elaborates on another perspective of Charles Darwin's theory of evolution, basing his argument on the recent discovery of the DNA molecule's structure. The theory of evolution, which relevance had been largely suffering from a lack of physical validation, now...
Ferromagnetism and the Curie-Weiss Law
Course material - 3 pages - Physics
In "Ferromagnetism and the Curie-Weiss Law" the author will start by giving a more complete derivation of the Curie-Weiss law, which might make a few points clearer. Then he will try to address some of your questions more directly. The author hopes that the derivation itself will make things...
Position of the Fermi Level for Extrinsic Semiconductors: Additional Notes for Solid State Physics
Course material - 2 pages - Physics
In "Position of the Fermi Level for Extrinsic Semiconductors" the author will talk a little more in detail about doped semiconductors. Here, the author answers the following questions: (i) What is the position of the Fermi level for an extrinsic semiconductor? (ii) What is the concentration of...
Quantum Dots : A Brief Overview
Essay - 5 pages - Physics
Over the past few decades there has been immense interest in Quantum Dots. In this report the author will outline some of the fabrication techniques, basic theory, and a few important properties of QDs. There are various different kinds of Quantum Dots. The author will focus mainly on...
The disposable DVD (DVD-D)
Worksheets - 3 pages - Electronics, mechanics, engineering & technology
The DVD-D is a standard DVD that can be used only for several hours after the card board sleeve has been opened. But the sleeve can be opened anytime: now, in one day, in one week, in one month or in several years. Then the DVD-D has a restricted lifespan of eight hours, after which it will be...
Studying the soybean nodulation at McGill University
Essay - 32 pages - Biology
This summer I had the great opportunity to do my three months training in McGill University in Quebec, Canada. It is one of the oldest Canadian universities, considered one of the most prestigious universities in Canada and one of the best in North America. According to the Times Higher Education...
Universal Serial Bus (USB)
Essay - 4 pages - Computer science
With increasing use of the Internet, cellular telephones, communications and media in general, interconnectivity has been growing at a rate that no one could have imagined ten years ago. As a result, problems have arisen in the wireless industry related to limited bandwidth as well as connections...
Variants on the game of Nim
Essay - 12 pages - Mathematics
Long before rock and roll, television, and computer generated dinosaurs, a group of stones was all that was needed to provide hours of entertainment and learning for the Chinese. Thousands of years ago in China, the fascinating game of Nim was created and continues to challenge minds today. Nim...
Computer simulation study of ionic and non ionic hydration
Essay - 10 pages - Physics
Liquids, solution, and liquid crystals present local, but not long-range order. On one hand particles in liquids interacts much strongly than the particles in gas, and this prevents the use of the usual statistical mechanics methods to predict their structure and properties since the needed...
Chikungunya, a silent disease?
Presentation - 21 pages - Biology
Do you want to travel in the Indian ocean? Stock of Chikungunya Some light on this silent epidemic?
History of mathematics in China
Essay - 24 pages - Mathematics
“Chinese mathematics” was defined by Chinese in ancient times as the “art of calculation”. This art was both a practical and a spiritual one. Like in Europe, many traces of calculations and solutions of equations were found by archaeologists. Today, these archaeological...
Designing a centrifugal pump for agricultural purposes
Dissertation - 17 pages - Physics
The purpose of this project was to calculate the dimensions of a centrifugal pump, for a determined application, to write a report and then to make an oral presentation, in English, to an auditorium. Therefore, this is a complete project from the choice of the specifications with documented...
Security through identification versus security of privacy
Essay - 16 pages - Computer science
In today's world we are often required to produce some form of identification. We also know about 'the European identity'. We can be a 'student' but at the same time be 'a Jew', 'a communist' and so forth. Identity is multiple. But what is 'identity' ?
Motor Speed Control
Essay - 7 pages - Physics
The aim of this report is to examine the main properties of a DC motor, its main applications and the characteristics of certain circuits that are used to control it. The report also seeks to give a general background on the equipment, including a slightly more in depth explanation of the DC...
The Linux Operating System
Essay - 11 pages - Computer science
The report will cover the history of Linux, its business operations and its purpose. The report will also describe Linux's popular software in comparison to other commercials systems.
