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

151. Stoffstromanalysen. Grundlage des Umweltmanagements

Author

Jürgens, G., Steinaecker, J. von, Hecht, S., and Publica

Abstract

Wie ist ein Umweltmanagementsystem aufzubauen, das eine systematische Integration des Umweltschutzes in die internen Untemehmensabläufe konsequent unterstützt? Von großer Wichtigkeit ist zum einen der Aufbau eines durchgängigen Zielsystems, das für Mitarbeiter aller Hierarchieebenen geeignete Ziele und Vorgaben enthält, die beider täglichen Arbeit zu erreichen sind. Ein bisher zu wenig beachteter Punkt betrifft die Verfügbarkeit von Umweltinformationen: Nur wenn ein Unternehmer die Auswirkungen seiner Handlungsalternativen auf die Umwelt kennt, kann er sich für einen geeigneten Weg entscheiden.

Published
1999

152. Dezentrales Umweltmanagement

Author

Hecht, S., Jürgens, G., Steinaecker, J. von, and Publica

Abstract

Die Einrichtung eines betrieblichen Umweltmanagementsystems hängt im wesentlichen davon ab, ob und wie umweltrelevante Informationen im Unternehmen vorliegen und wie daraus Bezugsgrößen und Kennzahlen ermittelt werden können. Im Rahmen eines BMBF-geförderten Projektes wurde bei der Firma TRUMPF GmbH + Co. Maschinenfabrik in Ditzingen die Einführung eines Informationssystems im Rahmen eines dezentralen Umweltmanagements erprobt.

Published
1999

161. Repeated Famotidine Administration Results in a Diminished Effect on Intragastric pH in Dogs.

Author

Tolbert, M.K., Graham, A., Odunayo, A., Price, J., Steiner, J.M., Newkirk, K., and Hecht, S.

Subjects
FAMOTIDINE, DRUG administration, DRUG efficacy, ANIMAL health, DOGS, VETERINARY internal medicine, THERAPEUTICS
Abstract

Background Famotidine is an acid suppressant commonly administered to dogs. Prolonged famotidine use in people results in decreased efficacy, but the effect in dogs is unknown. Hypothesis/Objectives To compare the effect of repeated oral administration of famotidine or placebo on intragastric pH and serum gastrin in dogs. We hypothesized that famotidine would have a diminished effect on intragastric pH on day 13 compared to day 1. Animals Six healthy adult colony Beagles. Methods Randomized, 2-factor repeated-measures crossover design. All dogs received oral placebo or 1.0 mg/kg famotidine q12h for 14 consecutive days. Intragastric pH monitoring was used to continuously record intragastric pH on treatment days 1-2 and 12-13. Mean pH as well as mean percentage time ( MPT) that intragastric pH was ≥3 or ≥4 were compared between and within groups by analysis of variance. Serum gastrin was measured on days 0, 3, and 12 for each treatment. Results Continued administration of famotidine resulted in a significant decrease in mean pH, MPT ≥3, and MPT ≥4 ( P < .0001) on day 12 and 13. This resulted in a mean decrease in pH by 1.63 on days 12 and 13 compared to days 1 and 2. Furthermore, a mean decrease of MPT ≥3 and MPT ≥4 by 33 and 45% was observed for the same time period, respectively. Conclusions and Clinical Importance Continued administration of famotidine results in a diminished effect on intragastric pH in dogs. Caution is advised when recommending long-term, daily oral administration of famotidine to dogs. [ABSTRACT FROM AUTHOR]

Published
2017
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162. Failure as teacher

Author

Hecht, S T

Subjects
Fatal Outcome, Risk Factors, Humans, Female, Thrombolytic Therapy, Case Reports, Intracranial Embolism and Thrombosis, Tomography, X-Ray Computed, Urokinase-Type Plasminogen Activator, Pericardial Effusion, Aged, Cerebral Angiography, Heart Rupture, Post-Infarction
Abstract

We report a case of fatal cardiac rupture occurring during intraarterial thrombolytic therapy for acute embolic stroke in a patient with recent myocardial infarction.

Published
1997

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

Author

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

Subjects
Participatory processes, Institutional capacity building, Sustainable agriculture, Natural resource management, Ecosystem Farm/Enterprise Scale Field Scale Governance Watershed
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

188. The effect of macromolecular architecture in nanomaterials : A comparison of site isolation in porphyrin core dendrimers and their isomeric linear analogues

Author

Harth, E. M., Hecht, S., Helms, B., Malmström, Eva, Frechet, J. M. J., Hawker, C. J., Harth, E. M., Hecht, S., Helms, B., Malmström, Eva, Frechet, J. M. J., and Hawker, C. J.

Abstract

The influence of macromolecular architecture on the physical properties of polymeric materials has been studied by comparing poly(benzyl ether) dendrons with their exact linear analogues. The results clearly confirm the anticipation that dendrimers are unique when compared to other architectures. Physical properties, from hydrodynamic volume to crystallinity, were shown to be different, and in a comparative study of core encapsulation in macromolecules of different architecture, energy transduction from the polymer backbone to a porphyrin core was shown to be different for dendrimers as compared to that of isomeric four- or eight-arm star polymers. Fluorescence excitation revealed strong, morphology dependent intramolecular energy transfer in the three macromolecular isomers investigated, Even at high generations, the dendrimers exhibited the most efficient energy transfer, thereby indicating that the dendritic architecture affords superior site isolation to the central porphyrin it surrounds., QC 20100525

Published
2002
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