6.973 Organic Optoelectronics (MIT)
The course examines optical and electronic processes in organic molecules and polymers that govern the behavior of practical organic optoelectronic devices. Electronic structure of a single organic molecule is used as a guide to the electronic behavior of organic aggregate structures. Emphasis is placed on the use of organic thin films in active organic devices including organic LEDs, solar cells, photodetectors, transistors, chemical sensors, memory cells, electrochromic devices, as well as xer
Google’s China dilemma: stay or go?
Just four years shy of setting up Google China, the leading internet search engine company has already threatened to withdraw its Chinese-language search engine Google.cn from the country over censorship and alleged cyber attacks on the e-mail accounts of Chinese human rights activists.
Mujeres Artistas y Performance. Interés desde el ámbito de la Educación y Análisis de la Cartogr
La unidad cuenta en principio con tres bloques que responden a su planteamiento inicial; por un lado contamos con una recopilación de información sobre artistas performers, fundamentalmente españolas, que trabajan desde su producción artística en vinculación con la performance; un análisis de lo que suponen, desde el ámbito de la educación, este tipo de prácticas; un estudio de la relevancia del mapeado de la información, en cuanto que ofrece datos significativos de dinámicas o corri
Non-Newtonian liquid - hole that does not disappear
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
Spherulite in poly-3-hydroxy butyrate (PHB)
Polymer melts often crystallise from heterogeneous nuclei to form ribbon-like lamellae, which have a folded chain molecular structure. They commonly radiate outwards from the nucleation point, to form spherical features called spherulites - which are often quite large. The characteristic Maltese cross pattern, seen when viewed between crossed polars, results from isoclinic fringes formed when one of the principal vibration directions is approximately parallel to the polariser. In some cases
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.