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  • 1
    Digitale Medien
    Digitale Medien
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 111 (1999), S. 3278-3287 
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: Monte Carlo results for both spherical and nonspherical electrorheological (ER) particles are described. The ER particles are modeled as hard spheres or hard ellipsoids of revolution with much smaller charged hard spheres (ions) constrained to their inner surface. NVT Monte Carlo calculations show that these models display the strong polarization and chain formation characteristic of ER fluids. Both prolate and oblate ER particles align with their longest axis directed along the applied field allowing for larger induced dipole moments than those obtained for spherical ER particles of equal volume. In all cases it is found that chaining occurs at relatively high fields where the induced dipole moments are approaching their maximum value. An interesting feature of nonspherical ER particles is the field-induced orientational order. It is found that even slightly nonspherical ER particles are highly ordered by fields which are weaker than those required to induce chain formation. Very weak fields are sufficient to generate strong orientational order in prolate ER particles with moderate aspect ratios. Further, field-ordered oblate ER particles tend to align their symmetry (short) axes to form a biaxial phase at high densities. The field-induced, liquid-crystal-like behavior of nonspherical ER particles is discussed in detail. © 1999 American Institute of Physics.
    Materialart: Digitale Medien
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  • 2
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd.
    The @journal of popular culture 27 (1993), S. 0 
    ISSN: 1540-5931
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Ethnologie
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    s.l. : American Chemical Society
    Industrial & engineering chemistry 25 (1933), S. 559-562 
    ISSN: 1520-5045
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    s.l. : American Chemical Society
    The @journal of organic chemistry 25 (1960), S. 1679-1680 
    ISSN: 1520-6904
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 5
    ISSN: 1365-2109
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Two experiments were conducted to evaluate the effects of supplementing methionine hydroxy analogue (MHA) on the performance, body composition, and nutrition retention of rainbow trout. In experiment 1, a 2×4 factorial arrangement with two MHA supplemental levels (with and without) and four fish meal replacement levels (25%, 50%, 75%, and 100%, replaced with soybean meal (SBM) and wheat gluten) was used. A fish meal diet was included as a control. Results showed that fish meal replacement levels had significant effects on fish weight gain (WG), feed conversion ratio (FCR), body moisture, crude protein, crude fat, and ash (P〈0.05). In experiment 2, a fish meal reference diet and seven other diets were made using SBM and distiller's dried grain with solubles supplemented with 0, 0, 0.55, 1.1, 1.65, 2.2, and 2.75 g MHA kg−1 diet to replace 50% of fish meal. WG, FCR, and apparent retention of crude protein and phosphorus were significantly improved in rainbow trout fed the diet containing 1.65 g MHA kg−1 diet compared with fish fed an equivalent diet without MHA.
    Materialart: Digitale Medien
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  • 6
    Digitale Medien
    Digitale Medien
    Amsterdam : Elsevier
    Journal of Insect Physiology 32 (1986), S. 493-501 
    ISSN: 0022-1910
    Schlagwort(e): 20-hydroxyecdysone ; Drosophila ; Vitellogenesis ; juvenile hormone ; yolk-protein
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Amsterdam : Elsevier
    Experimental Cell Research 14 (1958), S. 175-181 
    ISSN: 0014-4827
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Medizin
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Science Ltd
    Health & social care in the community 8 (2000), S. 0 
    ISSN: 1365-2524
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: This article challenges the belief that health visiting is ineffective. Rebutting the arguments of some of health visiting’s detractors, the authors point to a wealth of evidence that health visiting is effective. They acknowledge, however, that current methods of evaluating the effectiveness of many health services are far from perfect, and that some of the benefits of services like health visiting are more easily ascertained than others. The article discusses the dangers of defining such services as health visiting as technologies, arguing that ultimately, this is leading to a restriction in the kinds of activities which are seen as the proper domain of professionals such as health visitors. It is concluded that future debates concerning the effectiveness of health visiting must acknowledge the limitations of both current definitions of health visiting, and methods of evaluating health services. Finally, in looking to the future of health visiting, it is concluded health visitors have a far broader role to play than merely assuming responsibilities cast off by doctors.
    Materialart: Digitale Medien
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  • 9
    ISSN: 1365-2214
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin , Psychologie
    Notizen: Background  To develop a multiprofessional consensus about the relative contributions of the components of children's health and well-being and to develop a questionnaire that can be used to assess these in London's children.Methods  Semi-structured interviews with health, education and social services professionals were used to identify areas to include in the questionnaire. These ideas were used as the basis for a wider Delphi consultation, with 79 experts in the area of child health. Round 1 of the Delphi asked panellists to rate 54 items as to whether they should be included in the questionnaire or not. Responses were divided into four categories: item to be included measurement method agreed, item to be included measurement method not agreed, no consensus, or excluded. In round 2, consensus was sought for the categories where there was none following round 1.Results  Themes identified by the interviews were: economic factors, ethnicity, environment, nutrition, hygiene and physical activity, growth, suffers from chronic/serious illness, development, disability and learning, accidents and hospital attendances, self-regulation, psychological well-being, significant life events. After Delphi round 1, items included, where quality measurement method was agreed, were: deprivation index (from postcode), child's ethnicity, temporary accommodation, care status, registered with general practitioner, dental visits, height, weight, special educational needs status, baseline educational assessment result, immunization status, visual and hearing function. Following round 2, items relating to chronic illness, mental health, physical functioning, general health, self-esteem, family cohesion and accident status were agreed for inclusion with a measurement method also agreed. The questionnaire was acceptable to parents.Conclusion  The validity, reliability and feasibility of this questionnaire must now be examined. This data set, if collected across London, would substantially increase the public health data available and allow trends in health to be monitored.
    Materialart: Digitale Medien
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  • 10
    ISSN: 1365-2214
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin , Psychologie
    Notizen: Objective To develop a framework for measuring the quality of preschool child health surveillance acceptable to primary health care teams and measurable at individual primary health care team level.Design Published research evidence was identified and criteria developed by a local multidisciplinary expert group. The criteria were discussed with primary health care teams. How well they were achieved was assessed.Setting Twenty-eight general practices in one health authority area.Methods Data collection included observation of baby clinics, interviews with health visitors and general practitioners (GPs), questionnaires to parents, collation of child health surveillance reviews recorded in personal child health records and immunization rates.Results The criteria for assessing preschool child health surveillance were thought to be acceptable and achievable by primary health care teams. Fifteen of the 22 criteria used to assess baby clinics were met by over 90% of practices. Almost all practices completed child health surveillance reviews within a standard time and achieved 90% coverage for primary immunizations. At many practices, less than 90% of parents felt welcome at the baby clinic, usually had enough time to talk to their health visitor or had the purpose or results of the 6 to 8 week child health surveillance review explained to them. GPs were less likely than health visitors to discuss health promotion at child health surveillance reviews (χ2 11.52, P = 0.0007). Few practices had a call-up and recall system for all reviews.Conclusion The framework that we developed for assessing preschool child health surveillance was acceptable and achievable by primary health care teams.
    Materialart: Digitale Medien
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