Towards a Generic Platform for Developing CSCL Applications Using Grid Infrastructure
The goal of this paper is to explore the possibility of using CSCL component-based software under a Grid infrastructure. The merge of these technologies represents an attractive, but probably quite laborious enterprise if we consider not only the benefits but also the barriers that we have to overcome. This work presents an attempt toward this direction by developing a generic platform of CSCL components and discussing the advantages that we could obtain if we adapted it to the Grid. We then pro
A Model for the Efficient Representation and Management of Online Collaborative Learning Interaction
This study aims to explore the importance of the efficient representation and management of the event information generated from group activity in online collaborative learning practices so that we can use it to provide awareness about individual and group behaviour. The achievement of this goal first involves the design of a conceptual model of collaborative learning interaction that structures and classifies the information generated in an online collaborative learning situation at several lev
Using a Grid Platform for Enabling Real Time User Modeling in On-line Campus
User modelling in on-line distance learning is an important research field focusing on two important aspects: describing and predicting students actions and intentions as well as adapting the learning process to students features, habits, preferences, and so on. The aim is to greatly stimulate and improve the learning experience. Indeed, on the one hand, students intentions may change during the realization of learning activities and thus their actions evolve accordingly as the learning pr
An Approach to Analyzing the Role and Structure of Reflective Dialogue
Several intelligent tutoring systems contain modules that support reflection after practice exercises. However, there is very little research on reflective dialogue and its relation to dialogue during problem solving that can guide this effort. The approach to analyzing educational dialogue described in this paper was developed to address this problem. Using statistical and machine learning methods, we compared the frequency and structure of speech acts by avionics students and experts during pr
MetaLinks: Authoring and Affordances for Conceptual and Narrative Flow in Adaptive Hyperbooks
MetaLinks, an authoring tool and web server for adaptive hyperbooks, is described. MetaLinks hyperbooks provide textbook-like content in a flexible manner that supports opportunistic processes of active reading and learning. Through adaptive methods a single on-line artifact can address the diverse needs of a variety of user goals and backgrounds. The system is designed to support inquiry, exploratory, or curiosity-driven learning in richly interconnected material and to ameliorate a number of u
Self-directed learning in simulation-based discovery environments
SIMQUEST1 is an authoring system for designing and creating simulation-based learn-ing environments. The special character of SIMQUEST learning environments is that they include cognitive support for learners which means that they provide learners with support in the discovery process. In SIMQUEST learning environments we try to find the balance between direct guidance of the learning process and sufficient free-dom for learners to regulate the learning process themselves. In this article we de-
Accessing NCPEA Content in Workgroups
How to access NCPEA content in a workgroup for reviewing.
Directory of Open Access Journals
Directory of Open Access Journals. This service covers free, full text, quality controlled scientific and scholarly journals. We aim to cover all subjects and languages. There are now 1964 journals in the directory. Currently 482 journals are searchable at article level. As of today 81975 articles are included in the DOAJ service. The aim of the Directory of Open Access Journals is to increase the visibility and ease of use of open access scientific and scholarly journals thereby promoting thei
Alcohol from the course Introduction to Human Nutrition
Introduction to Human Nutrition - Fall 2006.This course provides an overview of digestion and metabolism of nutrients. Foods are discussed as a source of nutrients, and the evidence is reviewed as to the effects of nutrition on health. The emphasis of the course is on issues of current interest and on worldwide problems of food and nutrition. Students are required to record their own diet, calculate its composition, and evaluate its nutrient content in light of their particular needs.
BANG! Calendar review
This is a fun and exciting way for students to review calendar skills. The game can also be used to review skills from other content areas.
The UChannel (also known as the University Channel) makes videos of academic lectures and events from all over the world available to the public. It is a place where academics can air their ideas and present research in a full-length, uncut format. Participating universities contribute video and audio recordings of lectures, seminars, panels and interviews to a virtual pool of academic content. Participants produce their own content, under their own name. The UChannel provides the audience for
This site features World Wind 1.3, a NASA Learning Technologies application that lets the user zoom from any satellite altitude into any place on Earth. It features 3D Engine, Blue Marble, Landsat 7, SRTM, Animated Earth, MODIS, GLOBE, Country & State Borders, Place Names, Visual Tools and Landmark Set. The user can download World Wind, reference an online manual, post to an online forum, view screen shot examples from various satellites, and read press coverage about World Wind.
Jack Miles: America, Islam and the 'ground zero mosque', at ANU
Professor Jack Miles of the University of California at Irvine gives this lecture entitled 'America, Islam and the 'ground zero mosque'' at The Australian National University on 9 September 2010. Plans to build an Islamic centre near the site of the 9/11 bombing have become a flashpoint for debate over the nature of America's relations with Islam. Eminent American religion scholar and journalist Professor Jack Miles argues that the conservative critics of the "ground zero mosque" are Osama bin
The Probability Pipe Organ
This site provides a Java-based simulation that uses a random number generator to demonstrate the principles of probability.
This site features Flash animations that illustrate how the Global Positioning System (GPS) works. The animations depict how GPS signals are derived, compare geostationary and polar orbits, and explain satellites, ground control, and user segments, which comprise the three main GPS components. These resources are suitable for use in lectures, labs, or other teaching activities.
CoVis: A National Science Education Collaboratory
Why Financial Markets Need Referees
Outgoing U.S. Commodity Futures Trading Commission head Gary Gensler talks about how the agency has created a regulatory regime to rein in yesterday’s excesses.
Geology Labs on Line
This site provides a gateway to a comprehensive project that is developing interactive lab activities for the teaching and learning of geology and earth sciences.
8.3.4 Etchants and protectants: sulphur hexafluoride/oxygen plasma etching of siliconL A high etch rate requires a highly reactive etchant, forming a gaseous reaction product that we don't have to remove in a separate process. We have considered chlorine and bromine as etchants, but the reactivity series for simple radicals is F > O > Cl > N > Br > H, so we would prefer to use fluorine or oxygen. Oxides are almost always solids, with the notable exception of carbon dioxide. This makes O2 the plasma etchant of choice for carbon compounds, as the rapid etch selec
A high etch rate requires a highly reactive etchant, forming a gaseous reaction product that we don't have to remove in a separate process. We have considered chlorine and bromine as etchants, but the reactivity series for simple radicals is F > O > Cl > N > Br > H, so we would prefer to use fluorine or oxygen.
Oxides are almost always solids, with the notable exception of carbon dioxide. This makes O2 the plasma etchant of choice for carbon compounds, as the rapid etch selec
Distinguished Innovator Lecture Series: In-Sik Rhee
In-Sik Rhee, Co-Founder Opsware Inc. In Sik Rhee has co-founded 2 successful startup companies and has developed technologies across a wide spectrum of domain knowledge - from end-user packaged software to high-end mission critical enterprise systems. In Sik self-taught software programming at the age of 12 and began developing commercial software as a 19-year old. In Sik was most recently a co-founder and Chief Tactician at Opsware (NASDAQ: OPSW), formerly Loudcloud. There he played a diverse