Pages 22 795 result(s) returned

Computer Architecture Tutorial
Students in computer science or engineering will find this tutorial on computer architecture very useful and enlightening. Contributed by Professor Prabhu at Iowa State University, the material covers beginning and intermediate topics. Beginning with an overview of basic theorems, like Amdahl's Law, Prabhu explains the most important considerations for processor performance. He then goes into more details of a computer's operation, with a particular emphasis on memory hierarchy. This constitutes
Author(s): Prabhu, Gurpur M.

Predicting Invasions of Nonindigenous Plants and Plant Pests
This Web site contains the free book Predicting Invasions of Nonindigenous Plants and Plant Pests provided by the National Academies Press. Compiled by the US Board on Life Sciences and the Board on Agriculture and Natural Resources, this 194-page book explores the difficulties in predicting the immigration and impact of exotic species. Researchers active in this field may find this free resource of use.
Author(s): Creator not set

Soccer Shootout
Students solve and reduce fractional equations by playing Soccer Shootout. Levels of difficulty range from Easy to Super Brain and users can practice the addition, subtraction, multiplication, and division of fractions. Fractions with like and unlike denominators are included. Students play against the computer and are provided with the correct answer when a wrong one is entered.
Author(s): Creator not set

Exploring Leonardo
This online exhibit on Leonardo da Vinci includes references and activities about both his scientific and artistic work. The site is divided into several sections, with each section offering background information about da Vinci, links to more in depth articles and classroom activities.
Author(s): Creator not set

The Metric System : Metric and Scientific Notation
This lesson describes the history and basic operation of the metric system as well as scientific notation. Metric to English conversions and examples of unit conversions by moving the decimal are included.
Author(s): Anthony Carpi

Who done It? Or what's that brown fuzzy stuff on my plum?
A safe and simple exercise that uses Koch's postulates to prove that an observed fungus is the cause of fruit disease. Since the fungus that causes brown rot of stone fruit is present naturally on the surface of these fruit, stone fruit purchased from the supermarket or farm stand will usually develop the disease. The fungi responsible for brown rot of stone fruit are not human pathogens. This lab requires dissecting and compound microscopes. A simplified exercise, without cultures, to demonstra
Author(s): Claudia A. Jasalavich,Gail L. Schuman

Ernest Rutherford : Nobel Prize in Chemistry 1908
This biography was first published in the book series Les Prix Nobel. It was later edited and republished in Nobel Lectures, Chemistry 1901-1921, Elsevier Publishing Company, Amsterdam, 1966. A photo is included.
Author(s): Creator not set

Totally Tessellated
This site provides a comprehensive introduction to tessellations. It explains the basic mathematics underlying tessellations and gives examples of tessellations in real life. Site also provides information on M.C. Escher's tessellations.
Author(s): ThinkQuest

Observe an animation of a thunderstorm
These animated satellite images allow Earth science students to follow the formation of a thunderstorm over central Florida. The introduction explains how thunderstorms are formed by the updrafts of warm, moist air. Students are instructed to observe the animation to see the formation of cumulonimbus clouds and to observe the effect of downdrafts on the storms. The animation is linked to a map of the United States that shows the storm's location. Movie controls allow students to repeat, pause, o
Author(s): TERC. Center for Earth and Space Science Education

Ancient Chinese mathematics
This website contains a timeline and examples of early Chinese mathematics. Included are the Chinese version of the Pythagorean Theorem, a method of solving a system of linear equations, Pascals triangle, permutations and combinations, rule of false position, rule of three, magic squares, and puzzles. Other terms: fractions, algebra, negative numbers, scholars. (Includes 11 references)
Author(s): Tommasina Tripodi,Joint Creator

Students investigate motors and electromagnets as they construct their own simple electric motors using batteries, magnets, paper clips and wire.
Author(s): Integrated Teaching and Learning Program,

7.2 Difficulties in navigating e-commerce sites
Online shopping – think of it as a shopping centre in cyberspace, with online auctions as the car-boot sale in the car park. This unit will help you understand how to use online shopping sites, how to ensure that you are using the best sites and the best ways to protect your security.
Author(s): The Open University

7.1 Worries about security of credit card and personal data
Online shopping – think of it as a shopping centre in cyberspace, with online auctions as the car-boot sale in the car park. This unit will help you understand how to use online shopping sites, how to ensure that you are using the best sites and the best ways to protect your security.
Author(s): The Open University

7 What's going on with online shopping
Online shopping – think of it as a shopping centre in cyberspace, with online auctions as the car-boot sale in the car park. This unit will help you understand how to use online shopping sites, how to ensure that you are using the best sites and the best ways to protect your security.
Author(s): The Open University

Myasthenia Gravis - Motor Exam - Muscle Strength Sub-exam - Patient 11
Patient is a 52-year-old African American male who initially presented with diplopia and dysphagia about five years ago. Serologic testing demonstrated antibodies to the acetylcholine receptor, and repetitive nerve stimulation testing showed a decrement in CMAP at slow frequency repetitive stimulation. He now presents with generalized myasthenia, dysarthria, dysphagia and diplopia during a pyridostigmine-holiday for Tensilon testing.
Author(s): No creator set

Stoichiometry and Limiting Reagents
You can access the problems below via the Load Homework dialogue in the File menu of the Virtual Lab. They have been organized by concept and ranked by difficulty (A ranking of 1 denotes an easier problem; 5 is more challenging). Word files for these problems are provided so that you may edit and distribute the assignments in your classroom. The following types of problems can be found:Determining stoichiometric coefficients, stoichiometry and solution preparation, textbook style Limiting Reagen
Author(s): No creator set

Engineers without Borders
The Ole Miss Chapter of Engineers Without Borders are working to build a water filtration system for an African town. Video by Artesha Dunning.
Author(s): No creator set

ビジネス情報システムプロジェクト
グループ学習により，ビジネス情報システムという枠組みで，情報システムの開発に関するプロジェクトを遂行する。具体的には，発想支援ツールの利用やメタファーの利用，ワークデザイン，ソフトシステムズアプローチ，などの問題設定とその定式化の仕方について学ぶ。 注：授業は原則として偶数年度は英語，奇数年度は日本語で行う。 Associate Professor SENOO Dai, Pro
Author(s): TOKYO TECH OCW

Cervical Myelopathy - Sensory Exam - Superficial Sub-exam - Patient 13
This 46-year-old African American male presented with progressive weakness of the lower extremities for three months. He had increasing difficulty with walking and balance and now is unable to walk without assistance. He also complained of numbness and "pins and needles" sensation in the upper extremities with clumsiness and decreased dexterity in his right hand. Clinical history: He did not have neck or radicular pain and had no bowel or bladder problems or sexual dysfunction, but did have some
Author(s): No creator set

Jim Vacarella Describes Avoiding the Draft During the Vietnam War
For young men like Jim Vacarella, the draft stood as the prime symbol of the war in Vietnam. Millions of young men tried to evade the draft: some fled to Canada; many feigned physical or mental illness, others used family connections to gain safe positions in the National Guard. For some, resisting the draft became an important way of protesting the war, and a few thousand men took public stands as draft resistors, burning their draft cards and challenging the government to imprison them. Jim Va
Author(s): Center for History and New Media/American Social H