Extended architecture of knowledge management system with Web 2.0 technologies
Knowledge management systems (KMS) become increasingly important in periods of crises and economic slowdown, as many organizations are forced to lay off people, to reduce research and ICT budgets, to restructure departments and to optimize their costs. Subsequently, organizational knowledge assets, and mainly the existing tacit knowledge are threatened. This raises the importance of technologies that could assist organizational efforts to capture the existing knowledge and to mobilize it in orde
CSCL Scripts: Modelling Features and Potential Use
The design of collaboration scripts is a new focus of research within the CSCL community. In order to support the design, communication, analysis, simulation and even execution of collaboration scripts, a general specification language to describe collaboration scripts is needed. In this paper, we analyse the suitability and limitations of IMS LD for modelling collaborative learning processes. Based on the analysis, we propose a CSCL scripting language. This paper presents the conceptual framewo
Une introduction à la théorie des situations didactiques (Master "Mathématiques, Informatique" de
À l'origine du mouvement théorique sous l'étiquette (malheureuse) "didactique des mathématiques" en France est l'idée qu'il est possible de décrire, d'expliquer de façon rationnelle les phénomènes d'enseignement, phénomènes qui suscitent en général davantage l'empirisme ou l'opinion que le discours raisonné Un des soucis largement partagés au sein de la communauté française de didactique des mathématiques est celui de l'établissement d'un cadre théorique original développan
A note on organizational learning and knowledge sharing in the context of communities of practice
The knowledge management (KM) literature emphasizes the impact of human factors forsuccessful implementation of KM within the organization. Isolated initiatives for promoting learning organization and team collaboration, without taking consideration of the knowledge sharing limitations and constraints can defeat further development of KM culture. As an effective instrument for knowledge sharing, communities of practice (CoP) are appearing to overcome these constraints and to foster human collabo
Middle School Portal: Math and Science Pathways (MSP2)
New from The Biology Project of the University of Arizona, this online tutorial introduces the dynamic complexes of proteins, carbohydrates, and lipids that comprise cell membranes, and relates how membranes are important for regulating ion and molecular traffic flow between cells. Each section of this Web site takes the form of a multiple choice question. Answer the question correctly, and a brief explanation of each answer choice will be displayed. Answer the question incorrectly, and a short
Church and State, Maryland Legislature Floor Remarks, Jewish Record Transcript (Box 4, Folder 7) und
Box 4, Folder 7 contains a transcript of the Legislative Floor Remarks of Maryland concerning the separation of church and state.,The digitization of the Board of Delegates of American Israelites records at the Center for Jewish History was supported in part by funds from the Metropolitan New York Library Council (METRO) through the New York State Regional Bibliographic Databases Program.,Box 4, Folder 7 contains a transcript of the Legislative Floor Remarks of Maryland concerning the separation
David McNally: "Beyond the Market: Radical Alternatives to Market Socialism" DAVID MCNALLY is Professor of Political Science at York University,
Toronto. He is the author of five previous books: Political Economy and
the Rise of Capitalism (1988); Against the Market: Political Economy
Market Socialism and the Marxist Critique (1993); Bodies of Meaning:
Studies on Language, Labor and Liberation (2001); Another World is
Possible: Globalization and Anti-Capitalism (2002; second revised
edition 2006); and Monsters of the Market: Zombies
DAVID MCNALLY is Professor of Political Science at York University,
Samuel Farber: "Cuba Today: Current Trends and Future Developments" SAMUEL FARBER was born and raised in Cuba and received his Ph.D. in
Sociology from the University of California, Berkeley in 1969. He has
written numerous books and articles on Cuba including Revolution and
Reaction in Cuba, 1933-1960, and most recently, The Origins of the
Cuban Revolution Reconsidered published by the University of North
Carolina Press in 2006. He is currently working on a book on Cuba since
the 1959 Revolution for Haymarket Press. He is a
SAMUEL FARBER was born and raised in Cuba and received his Ph.D. in
This introductory course in "Modern Biology" covers topics found in the fields of cellular biology, molecular biology, biochemistry, and genetics. It does not cover organismal biology or taxonomy. This course is a requirement for biology majors at Carnegie Mellon University. The course is carefully planned to provide the background biology students will need for advanced biology classes. Non-biology majors will also find this course useful as it explains many of the concepts and techniques curre
Molecular Stepping Stones
A molecular approach to biology must develop in students an understanding of molecules, their interactions and the consequences of these interactions. Biological phenomenon now more than ever rely on chemical and physical principles for molecular explanations of the phenomenon. We have selected 10 physical-chemical principles that underlie many biological processes: we call them "Molecular Stepping Stones." Below are links to entry level model-based activities for the Stepping Stones.
Amplification of Biochemical Signals: the ELISA Test
Students are introduced to the role of molecular shape, weak attractions and charge in biology and biochemistry, and then undertake a simulated Direct ELISA test.
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.
Chemical Equilibria: The Law of Mass Action
Fundamental ideas and terminology of equilibria from a general chemistry perspective. A focus on closed systems, reversible chemical reactions, the law of mass action, Q and K. Also included are several multiple-choice questions that test the theories discussed. This site provides supplementary material that could be useful to beginning students in general and analytical chemistry.
This site provides an excellent experiment involving cyclic voltammetry at a gold electrode. The experiment includes a detailed introduction to the topics of electrode capacitance, electrode reactions, and flux of the electroactive species to electrode surface. Lab report guidelines and post-lab questions are included.
GEM: Greener Education Materials for Chemists
This site is a resource for green chemistry principles and literature. It provides links for making green organic experiments and teaching the principles of green synthesis. Although it does not have many links specifically to chemical analysis, it provides an extensive overview and source of information regarding the important area of green chemistry.
Dual axis moment exchange inverted pendulum
Hardware demonstration and explanation of an inverted pendulum, stabilized by two independently controlled reaction wheels connected to DC motors. Made as part of a master's thesis at the System and Identification and Control Laboratory at the University of California, San Diego.
Virtual Textbook of Organic Chemistry
This virtual textbook allows for visualization of 3D-molecular models while teaching principles of Organic Chemistry.
Economic analysis of electric energy storage
This thesis presents a cost analysis of grid-connected electric energy storage. Various battery energy storage technologies are considered in the analysis. Life-cycle cost analysis is used. The results are presented in term of incremental cost of electricity stored and discharged, in US$/kWh,Thesis (M.S.)--Wichita State University, Dept. of Electrical and Computer Engineering.,"May 2006.",Includes bibliographic references (leaves 47-49)
Soil community analysis along a salt gradient using denaturing gradient gel electrophoresis of PCR-a
Many studies of hyper saline environments have been performed, mainly on aquatic systems. However, the microbial community in terrestrial thallasohaline environments has not been studied extensively. To our knowledge, this is the first study of a natural terrestrial thallasohaline environment using polymerase chain reaction (PCR) and denaturing gradient gel electrophoresis (DGGE). We studied the great salt plains (GSP) for this purpose. The GSP is a perfect example of an extreme environment. The
Reassessment of intra- and extra-ovarian expression of growth differentiation factor-9
Mammalian ovarian organogenesis is characterized temporally by oogonial mitosis, oogonial apoptosis, rescue of germ cells via interaction with somatic cells to form primordial follicles, and entrance into meiosis. Recent studies suggest that germ cell’s activity participate in this process via the production of local regulatory factors. Growth differentiation factor-9 (GDF-9), a novel transforming growth factor-family member, is expressed in ovaries of various species as a crucial factor in ov