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2,105 results on '"Hecht, S."'

210. 2395

Author

Lindel, K., primary, Hecht, S., additional, Simon, C., additional, Dietz, A., additional, and Debus, J., additional

Published
2006
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228. Engineered Proteins in Materials Research

Author

Hecht, S., Tirrell, David A., Turell, June G., Mason, Thomas L., Fournier, Mourille J., Hecht, S., Tirrell, David A., Turell, June G., Mason, Thomas L., and Fournier, Mourille J.

Abstract

Peptides and proteins have attracted scientific and technological interest largely because of their intriguing properties as catalysts, receptors, signalling molecules, and therapeutic agents. In attempts to understand and exploit these properties, protein engineering has been used primarily to obtain precious proteins in increased quantities, or to explore systematic alterations in protein sequence through site-directed mutagenesis. Design of protein structures de novo ("from scratch") has attracted less attention, and has been directed in the main toward studies of protein folding (Kamtekar et al., 1993). Such studies represent a key element in the current vigorous investigation of the connections between amino acid sequence and the three-dimensional structures of isolated protein chains in aqueous solution. This chapter describes protein engineering of quite another sort, in which the proteinacious nature of the product is less important than its macromolecular character.

Published
1998

235. An external evaluation of the first three years of operations of the SANREM cooperative research support program 1992-1994

Author

Sustainable Agriculture and Natural Resource Management (SANREM) Knowledgebase, Swindale, L. D., Grove, T. L., Hecht, S., Herdt, R. W., Sustainable Agriculture and Natural Resource Management (SANREM) Knowledgebase, Swindale, L. D., Grove, T. L., Hecht, S., and Herdt, R. W.

Abstract

EXCERPT FROM The Sustainable and Natural Resource Management Collaborative Research Support Program (SANREM CRSP) is a USAID-supported program being implemented in half a dozen locatiosn around the gloabe by a group of US university, local university, national and international agricultural research organizations, and NGO staff members…USAID mandates that projects such as the SANREM CRSP have an External Evaluation Panel. In this case the Panel consists of Les Swindale, former Director General of ICRISAT, Susanna Hecht, Associate Professor in Development Studies at UCLA, Thurman Grove, Dean of International Agricultural Programs, The Rockefeller Foundation. The Terms of References for the External Evaluation Panel include three key issues

Published
1995

236. DNA isolation, quantification and RAPD analysis of captive wild turkeys

Author

Jones, M.D., Ellerbe, M., Martin, B., Buchholz, R., Hecht, S., and Findley, A.M.

Subjects
Turkeys -- Comparative analysis, Turkeys -- Genetic aspects, Wild turkeys -- Comparative analysis, Wild turkeys -- Genetic aspects, Science and technology, University of Mississippi -- Research, Grand Valley State College -- Research
Abstract

Blood samples from a captive flock of game-farm bred wild turkeys were subjected to random amplified polymorphic DNA (RAPD) analysis in order to ascertain the degree of general heterozygosity present. [...]

Published
2000

237. Distribution of Ehrlichia and Borrelia spp. in northeast Louisiana ticks

Author

Knobloch, A., Hecht, S., and Bounds, H.

Subjects
Identification and classification, Location, Research, Causes of, Tick-borne diseases -- Identification and classification -- Location -- Research, Lyme disease -- Causes of -- Research
Abstract

Human granulocytic ehrlichious and Lyme borrelosis are two tick-borne pathogens that infect more humans and animals every year. To determine local prevalence, approximately 300 ticks were collected from sites in [...]

Published
2000

246. Cascade energy transfer versus charge separation in ladder-type oligo(p-phenylene)/ZnO hybrid structures for light-emitting applications.

Author

Bianchi, F., Sadofev, S., Schlesinger, R., Kobin, B., Hecht, S., Koch, N., Henneberger, F., and Blumstengel, S.

Subjects
ORGANIC semiconductors, ZINC oxide, ENERGY transfer, LIGHT emitting diodes, RADIATIONLESS transitions
Abstract

Usability of inorganic/organic semiconductor hybrid structures for light-emitting applications can be intrinsically limited by an unfavorable interfacial energy level alignment causing charge separation and nonradiative deactivation. Introducing cascaded energy transfer funneling away the excitation energy from the interface by transfer to a secondary acceptor molecule enables us to overcome this issue. We demonstrate a substantial recovery of the light output along with high inorganic-to-organic exciton conversion rates up to room temperature. [ABSTRACT FROM AUTHOR]

Published
2014
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