999 resultados para Dahlstrom, Grant Edward.


Relevância:

80.00% 80.00%

Publicador:

Resumo:

El presente documento es un estudio detallado del problema conocido bajo el título de Problema de Alhacén. Este problema fue formulado en el siglo X por el filósofo y matemático árabe conocido en occidente bajo el nombre de Alhacén. El documento hace una breve presentación del filósofo y una breve reseña de su trascendental tratado de óptica Kitab al-Manazir. A continuación el documento se detiene a estudiar cuidadosamente los lemas requeridos para enfrentar el problema y se presentan las soluciones para el caso de los espejos esféricos (convexos y cóncavos), cilíndricos y cónicos. También se ofrece una conjetura que habría de explicar la lógica del descubrimiento implícita en la solución que ofreció Alhacén. Tanto los lemas como las soluciones se han modelado en los software de geometría dinámica Cabri II-Plus y Cabri 3-D. El lector interesado en seguir dichas modelaciones debe contar con los programas mencionados para adelantar la lectura de los archivos. En general, estas presentaciones constan de tres partes: (i) formulación del problema (se formula en forma concisa el problema); (ii) esquema general de la construcción (se presentan los pasos esenciales que conducen a la construcción solicitada y las construcciones auxiliares que demanda el problema), esta parte se puede seguir en los archivos de Cabri; y (iii) demostración (se ofrece la justificación detallada de la construcción requerida). Los archivos en Cabri II plus cuentan con botones numerados que pueden activarse haciendo “Click” sobre ellos. La numeración corresponde a la numeración presente en el documento. El lector puede desplazar a su antojo los puntos libres que pueden reconocerse porque ellos se distinguen con la siguiente marca (º). Los puntos restantes no pueden modificarse pues son el resultado de construcciones adelantadas y ajustadas a los protocolos recomendados en el esquema general.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Vols. 1-2, 1865; v. 3, 1864.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Top Row: Cathy Agree, Carol Bass, Nancy Bernadic, Barbara Bettman, Wendy Bittker, Judy Brown, Barbara Cassavoy, Nacy Cohen, Julie Coon, Mary Dawson, Susanne Dean, Barbara Diebolt, Joan Dzenowagis

Row 2: Donna Dziyba, Marla Erbin, Frederick Fiedler, Megan Forester, Lynn Babington, Keverne Popma, Barbara Cloutier, Catherine Doele, Barbara DeBenham, Alta Gaines, Susan Grant, Edward Greca, Pamela Griesbach

Row 3: Karen Haske, Janis Harris, Cherisse Hoffman, Wendy Jelinek, Judy Jenks, Barb Kakenmaster, Karen Kitchen, Kay Klass

Row 4: Kathryn Laing, Rachel Lapinski, Cheryl Marinett, Marta Monroe, Jackie Mrlik, Susan Mulkiten, Michele Olzack, Carol Osborn

Row 5: Deborah Parker, Linnae Pierskalla, Mary Prather, Terry Proctor, Karen Rech, Nancy reddaway, Nancy Reynolds, Mary Ridley

Row 6: Catherine Rhodes, Patricia Roggenbeck, Barbara Ruppal, Victoria Russum, Suzanne Sanders, Elizabeth Saviano, Diane Scarpace, Nola Schramm, Paula Schroeder, Carolyn Schroth, Barbara Scott

Row 7: Deborah Scullon, Denise Shough, Belvayuna Simpson, Joyce Smith, Barbara Stang, Elizabeth Sullivan, Molly thibault, Debbie Varney, Margaret Walters, Desiree White, Janice Winfree, Meg Williams, Nancy Zuelch

Relevância:

30.00% 30.00%

Publicador:

Resumo:

The format of grant applications should be updated to incorporate multimedia video. This would help researchers to convey complex topics to grant-review panels. If time-poor research panels cannot quickly grasp the scientific ideas presented in a paper application, other factors, such as author affiliations and track records, may disproportionately influence project rankings...

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Digital image

Relevância:

30.00% 30.00%

Publicador:

Resumo:

This layer is a georeferenced raster image of the historic paper map entitled: Map of the route explored by Captns. Speke & Grant from Zanzibar to Egypt : showing the outfall of the Nile from the Victoria Nyanza (Lake) and the various Negro territories discovered by them. It was published by Edward Stanford in 1863. Scale [ca. 1:5,800,000]. Covers portions of north and eastern Africa including parts of Sudan, Eritrea, Ethiopia, Uganda, Kenya, Rwanda, Burundi, and Tanzania. The image inside the map neatline is georeferenced to the surface of the earth and projected to the 'World Mercator' projection. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, expedition routes of John Speke and James Grant, cities and other human settlements, tribe and territorial boundaries, and more. Relief is shown by hachures. Includes location map and text. This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection and the Harvard University Library as part of the Open Collections Program at Harvard University project: Organizing Our World: Sponsored Exploration and Scientific Discovery in the Modern Age. Maps selected for the project correspond to various expeditions and represent a range of regions, originators, ground condition dates, scales, and purposes.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Appendix of v. 2 ("reproduced from one of FitzGerald's commonplace books which he himself called 'The museum book'") contains 24 plates (part colored) including 9 facsimiles.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

"Life of Schuyler Colfax": p. [381]-425.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Ulysses S. Grant, Schuyler Colfax, James G. Blaine, Hamilton Fish, John A. Rawlins, Jacob D. Cox, George S. Boutwell, Adolph E. Borie, John A.J. Creswell, Ebenezer R. Hoar.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Acknowledgement: The research presented in this paper was conducted as part of the EU FP7 research project PACT (http://www.projectpact.eu), grant agreement number 285635.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Focusing primarily on Anglophone countries, this article begins by looking at the changing environment of foundations, the pressures on foundations and some responses to those pressures. It then focuses on the potential of a structural change approach - often known as 'social change' or 'social justice' grant-making - as a solution to some of the modern dilemmas of foundations, and considers why this approach has, with some exceptions, gained relatively little support. This raises the wider issues of why and how resource-independent, endowed foundations change when conventional explanations of organisational change do not easily apply. Researching a 'lack' is clearly difficult; this article adopts an analytic perspective, examining the characteristics of the structural change approach as a mimetic model, and draws on the work of Rogers (2003) on the characteristics required for the successful diffusion of innovations. It suggests that the structural change approach suffers from some fundamental weaknesses as a mimetic model, failing to meet some key characteristics for the diffusion of innovations. In conclusion, the article looks at conditions under which these weaknesses may be overcome.