Can leadership withstand the ravages of a crisis?
The sudden collapse of Lehman Brothers and the fall of AIG have not just shaken the financial community to its core, which has sent reverberations worldwide, its leaders have also come under fire.


But there's more to these highly-publicised institutional collapses than meets the eye, according to Subramanian Rangan, Associate Professor of Strategy and Management at INSEAD.

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Using the Central Limit Theorem
Alexander Holmes

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Tracking fingers with the Wii Remote

Using an IR led array and some reflective tape, you can track fingers in thin air using the Wii Remote by Johnny Chung Lee, Carnegie Mellon University. The grid software is a custom program written using a C# wiimote library and DirectX.

read mo
Author(s): EduTube

Description et exploitations des traces du logiciel d’algèbre Aplusix
Cet article porte sur l’emploi de traces dans un contexte éducatif et sur leur utilisation dans un EIAH. La première partie présente le logiciel Aplusix, un micromonde pour l'apprentissage de l'algèbre qui permet l’enregistrement de productions d’élèves, comme celles obtenues dans l'environnement classique papier, mais comportant de plus d'autres informations, comme le temps, les hésitations, les corrections. Ce recueil produit une trace brute qui représente une modélisation comporte
Author(s): Chaachoua Hamid,Croset Marie-Caroline,Bouhineau De

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A Bayesian Student Model without Hidden Nodes and Its Comparison with Item Response Theory
The Bayesian framework offers a number of techniques for inferring an individual's knowledge state from evidence of mastery of concepts or skills. A typical application where such a technique can be useful is Computer Adaptive Testing (CAT). A Bayesian modeling scheme, POKS, is proposed and compared to the traditional Item Response Theory (IRT), which has been the prevalent CAT approach for the last three decades. POKS is based on the theory of knowledge spaces and constructs item-to-item gra
Author(s): Desmarais Michel C,Pu Xiaoming

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Une analyse automatique de cartes conceptuelles pour modéliser l'apprenant
Les hypermédias adaptatifs dédiés à l'enseignement souffrent généralement d'une modélisation soit trop rigide, les destinant à l'apprentissage d'un champ disciplinaire déterminé a priori, soit trop grossier, ne permettant pas la construction d'un modèle suffisamment riche pour adapter finement le document produit. Notre objectif est d'aller à l'encontre de ces problèmes, en proposant une modélisation de l'apprenant plus riche car non basée sur une modélisation par recouvrement. L
Author(s): Delorme Fabien,Delestre Nicolas,Pécuchet Jean-Pie

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Middle School Portal: Math and Science Pathways (MSP2)
The popular Learning Adventures series at DiscoverySchool.com (last mentioned in the March 8, 2002 NSDL Physical Science Report) has a feature on the International Space Station. Its assembly is one of the most ambitious engineering projects ever, and this site explains a few of the details of the multi-year process. In the Mission Basics section, there are specific facts, discussions about various aspects of the station, and virtual tours of some of the stations modules. Astronaut profiles and
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Social Media Collaboratory: Introduction to Social Media
Understand the benefits and challenges of effectively engaging with social media. Learn how participate and organize online discussions in forums, mailing-lists, blogs and video discussion sites. Understand how a blog can give you a voice and learn the basics of publishing a blog. Understand how social bookmarking can be a very effective way to gather and share information about online resources. Learn how to use wikis and understand their use as a collaborative writing (collabowriting) tool
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Basics of Fluid Mechanics
This book describes the fundamentals fluid mechanics phenomena for engineers and others. This book is designed to replace all introductory textbook(s) or instructor's notes for the fluid mechanics in undergraduate classes for engineering/science students but also for technical peoples. It is hoped that the book could be used as a reference book for people who have at least some basics knowledge of science areas such as calculus, physics, etc.
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Dive and Discover's Deeper Discovery: Hydrothermal Vents
Explore vent basics, vents around the world, vent chemistry, boiling points, videos, and test what you've learned with a quiz!
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Linear Systems and Optimization: Convex Optimization I
Concentrates on recognizing and solving convex optimization problems that arise in engineering. Convex sets, functions, and optimization problems. Basics of convex analysis. Least-squares, linear and quadratic programs, semidefinite programming, minimax, extremal volume, and other problems. Optimality conditions, duality theory, theorems of alternative, and applications. Interiorpoint methods. Applications to signal processing, control, digital and analog circuit design, computational geometry,
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Using older and refurbished computers
This unit covers the basics of older and refurbished computers: what they are, the benefits and risks of using them, who should use them, and where to get them.
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Entrepreneurship and Corporate Venturing
Course Goals: a) Students will gain an understanding the economic, technological, societal, and global dimensions of entrepreneurship and intrapreneurship. b) Students will understand the major differences between personal entrepreneurship and intrapreneurship, which often occurs in larger mature organizations. c) Students will understand the relationships between personal goals, competencies, and experience to assess what they bring to all types of ventures. d) Students will understand and prac
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Pathophysiology of Endocrinology, Diabetes and Metabolism
In addition to covering the basics in the Concepts in Endocrine Pathophysiology lecture, the lectures in this course cover a wide range of subjects, from Pituitary Neoplasia to Diabetes and Obesity - Treatment to Goiter and Thyroid Nodular Disease. The course also contains Small Group Discussion sessions which consolidate the concepts and facts acquired during the lectures and pursues the ability to solve common clinical problems in Endocrinology and Metabolism with sample cases and solutions.
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First Distinguished Bristol-Myers Squibb Lecture in Immunology

This is the first Distinguished Lecture in Immunology supported by Bristol-Myers Squibb. UC IRVINE INSTITUTE FOR IMMUNOLOGY presents Michael D. Cahalan, Ph.D., Professor and Chair Department of Physiology and Biophysics Institute for Immunology University of California, Irvine. Lecture delivered on June 17, 2010.

Dr. Cahalan was recently elected to the National Academy of Sciences.


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Doing Science and Technology: The Process of Scientific Inquiry
This site helps students understand the basics of scientific inquiry. Lessons progress from what students already know about scientific inquiry, or think they know, toward a more complete and accurate perspective. Activities include distinguishing questions that can be tested by a scientific investigation from those that cannot and participating in a computer-based scientific investigation as members of a fictitious community health department.
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RobertNiles.com: Statistics Every Writer Should Know
Robert Niles, a journalist and producer for the LA Times, created this site to help other writers learn the basics of statistics. He explains many key concepts that are essential to report accurate, meaningful numbers and facts. After starting with the fundamentals of mean, median, and percent, Niles goes on to describe more advanced topics like normal distribution, margin of error, and data analysis. For each section, an example or two are provided to demonstrate proper usage of the techniques.
Author(s): Niles, Robert.

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Fast Scan Voltammetry
A short presentation of theory and practice of electrochemistry focused on use of microelectrodes and micro-bands in flow cells. Problems encountered are addressed and response characteristics discussed.
Author(s): Richard C. Compton

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Copyright 2003 Oxford University

1.3 Attending to sounds

From the earlier sections, you will appreciate that the auditory system is able to separate different, superimposed sounds on the basis of their different source directions. This makes it possible to attend to any one sound without confusion, and we have the sensation of moving our ‘listening attention’ to focus on the desired sound. For example, as I write this I can listen to the quiet hum of the computer in front of me, or swing my attention to the bird song outside the window to my ri
Author(s): The Open University

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Copyright © 2013 The Open University

Inside the Human Body: The Respiratory System
This Web site from the Canadian Lung Association contains an excellent collection of learning resources about the respiratory system for grades 1-12. Content varies according to grade range; for instance, the section for grades 1-3 covers basics of lungs and their function with an illustrated story, coloring book, interactive games, and downloadable worksheets. Older students focus in on smoking, air pollution, and other issues in addition to covering respiratory system biology. As with the sect
Author(s): Saskatchewan. Lung Association

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