894 resultados para Nature of Science


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Structural and magnetic transformations in the Heusler-based system Ni0.50Mn0.50¿xSnx are studied by x-ray diffraction, optical microscopy, differential scanning calorimetry, and magnetization. The structural transformations are of austenitic-martensitic character. The austenite state has an L21 structure, whereas the structures of the martensite can be 10M , 14M , or L10 depending on the Sn composition. For samples that undergo martensitic transformations below and around room temperature, it is observed that the magnetic exchange in both parent and product phases is ferromagnetic, but the ferromagnetic exchange, characteristic of each phase, is found to be of different strength. This gives rise to different Curie temperatures for the austenitic and martensitic states.

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Today higher education system and R&D in science & Technology has undergone tremendous changes from the traditional class room learning system and scholarly communication. Huge volume of Academic output and scientific communications are coming in electronic format. Knowledge management is a key challenge in the current century .Due to the advancement of ICT, Open access movement, Scholarly communications, Institutional repositories, ontology, semantic web, web 2.0 etc has revolutionized knowledge transactions and knowledge management in the field of science & technology. Today higher education has moved into a stage where competitive advantage is gained not just through access of infonnation but more importantly from new Knowledge creations.This paper examines the role of institutional repository in knowledge transactions in current scenario of Higher education.

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Resumen tomado de la publicaci??n

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Created using the LLAC LOC tool, this includes links and activities with feedback. The content is an introduction to medicines for healthcare practitioners. It does not inlcude the Rights of Administration which are considered in separate LOC resource.

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Resources for coursework 2 of INFO 2009. A video made to promote the public awareness of science as a topic. It goes through interesting facts and explains what you can do to make a difference. A flyer made to advertise the video, explaining what it is and how it can be used.

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La primera guía de la ciencia para los niños de seis a ocho años debe abrir sus mentes a ésta y hacerles comprender que es todo lo que hay a su alrededor. Para ello ,se presentan y explican los temas de la ciencia, referidos siempre a experiencias cotidianas que conoce bien el niño. Así, se captura su interés e imaginación, y también, es una forma de dar respuestas para la realización de sus trabajos escolares.

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Obra de referencia para los estudiantes de física, química a biología del General Certificate of Secundary Education (GCSE). Está organizada en secciones temáticas que abarcan todos los aspectos del currículo de ciencias. Los conceptos clave y las ideas básicas se explican con un texto sencillo completado con imágenes y diagramas. Incluye una sección de gráficos, tablas y conversiones. Tiene glosario, índice y, además, enlaces a sitios web educativos para ampliar el aprendizaje de estas materias.

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Abarca todos los aspectos de la práctica docente, desde la planificación hasta la enseñanza y la evaluación. También, proporciona detallada información sobre las actividades que se realizan en la etapa 3 (key stage 3) de la estrategia nacional en ciencias (National Sciences Strategy), que se corresponde con el nivel de secundaria.