Learning in the Age of Ubiquitous Computing: Exploring the Impact of Mobile Technologies on Individu
This paper explores the emergence of a pervasive learning culture within the context of ubiquitous computing scenarios. Furthermore, this paper examines the impact of mobile technologies on collaborative learning and highlights the key characteristics of these phenomena.
Culture, Politics, and Community: Living Public Health in Nigeria
In this lecture, Professor Brieger discusses some of the lessons he learned during his 26-year experience working in Nigeria and his subsequent work with a wider variety of African nations, focusing on on tropical diseases and their associated social, cultural, and behavioral aspects.
MPH Capstone Honors Recipients 2008
MPH candidates are required to prepare capstone projects to complete their degree program. Each year, special honors were given to ten students for the best overall capstone projects. Presentations from three of the ten 2008 honors recipients are posted.
The Future of Brazil
The old joke about Brazil is that it is the country of the future, and always will be. There are signs, however, that the Brazilian economy is finally achieving the stability necessary for it to fulfil its potential. What is particularly intriguing is that this has happened under the leadership of Lula, the former print-worker, union leader and founder of the innovative Workers’ Party, who is now in his second term as elected president of Brazil. To what extent is it possible for a radical
All Caught Up: Bycatching and Design
Bycatch, the unintended capture of animals in commercial fishing gear, is one of the hottest topics in marine conservation today. About 25% of the entire global catch is by-catch This surprisingly high level of by-catch is responsible for the decline of hundreds of thousands of dolphins, whales, porpoises, seabirds and sea turtles each year. Through this curricular unit, students will analyze the significance of by-catch in the global ecosystem and propose solutions to help reduce by-catch Stude
Using Interaction Analysis to reveal Self-Regulated
Learning in Virtual Communities
Aim of this paper is to analyse whether Interaction Analysis can help investigate the practice and development of Self-Regulated Learning (SRL) in Virtual Learning Communities (VLC). Interaction analysis is increasingly used to study learning dynamics within online activities. It proceeds by searching expressions that reveal the aspects under study in the written messages exchanged by the learners. To this end, we devised and classified a number of indicators suggesting the existence of self-re
Internet Scout Project
Operating as the nonprofit research campus of the University and Community College System of Nevada, the Desert Research Institute (DRI) conducts more than $27 million in environmental research each year with the help of its approximately 400 research faculty and support staff. The informational research page of the main Web site offers descriptions; publications; links; and other relevant facts from the various arms of the institute, which include the Division of Atmospheric Sciences, Division
Mapcar: a framework to support the elaboration of the conceptual model of a Knowledge Based System
Constructing a knowledge based system requires the identification of the conceptual primitives and problem-solving strategy that will permit capturing the expertise in an adapted way. This paper presents an approach to support the elaboration of such a conceptual model by data-abstraction. Our work is motivated by the objective of constructing models that correspond to how experts solve problems, which is required for some applications, as, for example, presenting problem-solving in an education
Internet Scout Project
One of the most important pieces of technology being used to search Iraq for evidence of weapons is a 48-year old spy plane. The U-2, which was first flown in the beginnings of the Cold War, has withstood the test of time and continues to be widely used by the US. This site provides details about the history of the U-2. It also describes many technical aspects involved in flights, such as the advanced sensor systems and pilot life support.
Internet Scout Project
This site, posted by the US Department of Energy's Sandia National Laboratories, "provides access to a comprehensive set of databases on metal-hydrogen systems, their properties, applications, literature sources, and profiles of organizations involved in metal-hydrogen development." Metal hydrides are important because they are commonly used in batteries and as hydrogen fuel storage cells for autos and power generation (a fossil fuel alternative). The technical part of the database has hydride m
Internet Scout Project
The Understanding the Universe Web site is part of Discovery.com's excellent educational resource DiscoverySchool.com site and is a joint effort with the American Museum of Natural History. This attractive site contains three major sections. The It's Awesome page has a time line of the universe that links to the Universe in One Year page -- a great way of learning the difficult concept of geologic time by showing that, if the history of the universe was compressed into one year, modern humans wo
Investigating human computer interaction issues in designing efficient virtual learning environments
Today, when an enormous number of computer-based systems exist, the human activities are being computer mediated. Usually, in designing the interface to those systems, the human-computer interaction is left behind without consideration. In this paper, a literature in human-computer interaction is to be reviewed and the technology aspect of human computer interaction is to be analyzed. Also, general design principles are to be reviewed. According to all these issues, recommendations to designing
Do two heads search better than one? Effects of student collaboration on Web search behavior and sea
This study compared Pairs of students with Single students in Web search tasks. The underlying hypothesis was that peer-to-peer collaboration encourages students to articulate their thoughts, which in turn has a facilitative effect on the regulation of the search process as well as search outcomes. Both hypotheses were supported by the results. Pairs located the target information more often and in less time than Singles did. Pairs also employed a richer repertoire of search strategies and were
Internet Scout Project
The page on the Ekati Diamond Mine, which is located in the Northwest Territories and is North America's only operating diamond mine, presents two sizes of satellite images and informational text. A nifty feature of the Ekati page is a section where users can compare the satellite imagery to ground images of particular features (e.g., tundra, glacial eskers, and heath) of the mine area. Other highlights include a satellite view of the excavated terraces and blast sites of this pit mine and a tim
Les graphes argumentatifs interactifs sur Internet : sont-ils plus efficaces comme média du débat
Nous présentons les résultats d'une expérience menée dans le cadre du projet européen SCALE. Le but de cette recherche était d'étudier l'influence du type d'utilisation du graphe argumentatif durant des débats pédagogiques sur Internet. Précisément, il s'agissait de savoir sur le graphe argumentatif était plus efficace lorsqu'il était utilisé comme médium du débat (C1) ou comme moyen de le représenter (C2). Dans cet objectif, nous avons évalué à l'aide d'une méthode original
Knowledge Convergence in Computer-Supported
Collaborative Learning: The Role of External Representat
This study investigates how two types of graphical representation tools influence the way in which learners use knowledge resources in two different collaboration conditions. In addition, the study explores the extent to which learners share knowledge with respect to individual outcomes under these different conditions. The study also analyzes the relationship between the use of knowledge resources and different types of knowledge. The type of external representation (content-specific vs. conten
Multiple Sclerosis - Cranial Nerves Exam - Hypoglossal (CN XII) Sub-exam - Patient 20
Janie is a 39-year-old Caucasian female who initially presented with weakness and L'Hermitte’s phenomena at the age of 35. Initially mistaken as a TIA, MRI of the brain revealed numerous plaques in the white matter suggesting Multiple Sclerosis. Her lumbar puncture initially failed to demonstrate the presence of oligoclonal bands, but since progression of the disease over the past few years bands have developed.
The CoVis Project: Building a Large-Scale Science Education Testbed
This paper describes the construction and research program of the Learning Through Collaborative Visualization (CoVis) Project. a testbed for exploring science education reform with telecommunications technology. The CoVis testbed is contrasted with other forms of cducational research in an "ecolo~yo f paradigms." which argues that testbeds are in fact a new setting for research with different requirements and challenges for the researcher. Two extended examples of telecommunications research ar
The greenhouse effect visualizer: a tool for the science classroom
The Greenhouse Effect Visualizer (GEV) is designed to help students visualize data sets related to the earth's energy balance. This work was inspired by the benefits scientific visualization have provided to scientists in discovering patterns and presenting the results of their work to broad communities. The hope is that scientific visualization can provide equal assistance to students trying to learn science. The philosophy underlying this approach links learning with practice. Hence, students
Neuropathy - Coordination Exam - Lower Extremities Sub-exam - Patient 7
This 61-year-old man has had slowly progressive gait disturbance and weakness of his legs for 14 years. He has developed a limp in both legs, and his feet trip on objects and on uneven floor surfaces resulting in falls. He feels uncoordinated and unbalanced especially in the dark. He has to use a cane to assist ambulation. For the last 10 years, he has had numbness and tingling in both lower extremities. This began in his toes and now has extended proximally to his knees.