Dust is an ubiquitous inhabitant of the interstellar medium, and leaves an unmistakable signature in its optical properties, and physico-chemical evolution. Although there is little direct knowledge of the true nature of interstellar dust grains, strong evidences point toward the…

Descripción completa.

Descripción completa.

Despite the many assumptions that usually surround the importance of science education for scientific practice, scholarship on the history of subject has been scattered and usually undertaken en route to other pursuits. In this research, I aim to bring to…

by Guru Prasanna., Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001., Page 123 blank., Includes bibliographical references (p. 121-122).

En este trabajo se establece un acercamiento conceptual entre el constructo deconstrucción desde la perspectiva del desaprendizaje y la teoría de la equilibración de Piaget como marcos explicativos acerca de la construcción de conocimiento en el sujeto. Primeramente, se presenta…

by Roberta E. Bivins., Thesis (Ph. D.)--Massachusetts Institute of Technology, Program in Science, Technology, and Society, 1997., Includes bibliographical references (leaves 226-237).

by Nira Granott., Thesis (Ph. D.)--Massachusetts Institute of Technology, Program in Media Arts & Sciences, 1993., Includes bibliographical references (p. 431-442).

In this article we develop a measure to approximate the diffusion of product-embodied R&D that takes place by means of the intermediate purchases of KIBS in 19 of the EU27 countries over the period 2000-2005. The results obtained confirm a…

Characterization of defect is one of the important objectives of nondestructive evaluation (NDE) for condition assessment of structures. Among many other NDE techniques, ultrasonic methods play a prominent role in the both quantitative and qualitative assessment of discontinuities in reinforced…