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  • 1995-1999  (4)
  • 1970-1974
  • 1940-1944
  • High protein diet  (2)
  • Polymer and Materials Science  (2)
  • 1
    Electronic Resource
    Electronic Resource
    A diet enriched in protein accelerates diabetes manifestation in NOD mice (1996)
    Springer
    Acta diabetologica 33 (1996), S. 236-240 
    Details
    ISSN: 1432-5233
    Keywords: Key words Non-obese-diabetic (NOD) mouse ; High protein diet ; Insulin secretion ; Perfusion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Diet modifies the development of insulin-dependent diabetes mellitus in animals and in humans. We examined female non-obese-diabetic (NOD) mice, a diabetes-prone mouse strain with 70% spontaneous diabetes incidence and metabolic abnormalities in non-overtly diabetic litters. They were fed a diet containing 55% (n=27) or 15% (n=26) protein, respectively, after weaning. At an age of 30 weeks, non-diabetic NOD mice were submitted to an intravenous glucose tolerance test (0.5 g/kg body weight; blood samples were taken after 2, 4, 8, 10, 15, 20 and 30 min) and to perfusion of the pancreas (stimulation media were Krebs-Ringer-Hepes buffer with 5 mmol/l glucose, 30 mmol/l glucose and 5 mmol/l glucose plus 19 mmol/l arginine). Diabetic mice were removed from the experiment. Serum glucose concentration and body weight were monitored weekly. Food ingestion was checked at an age of 11 weeks. On average, the onset of diabetes was diagnosed in mice on a high-protein diet (19.7±1.3 weeks) 4 weeks earlier than in mice on a low-protein diet (23.5±1.1 weeks; P〈0.05). Non-diabetic NOD mice on a high-protein diet showed significantly better glucose tolerance (as determined by the glucose disappearance rate) and mean insulin secretion (at 30 mmol/l glucose). No difference in the serum glucose concentration between non-diabetic mice on the low-protein diet or high-protein diet could be proved. In non-diabetic mice on the high-protein diet the body weight and food ingestion exceeded those of mice on the low-protein diet (P〈0.05). High insulin secretion and glucose tolerance in non-diabetic mice may reflect the capacity of beta-cells to adapt; however, beta-cells tend to be destroyed under such circumstances. Thus, a high-protein diet promoted the onset of diabetes, but it did not increase significantly the incidence of the disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02048550
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    A diet enriched in protein accelerates diabetes manifestation in NOD mice (1996)
    Springer
    Acta diabetologica 33 (1996), S. 236-240 
    Details
    ISSN: 1432-5233
    Keywords: Non-obese-diabetic (NOD) mouse ; High protein diet ; Insulin secretion ; Perfusion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Diet modifies the development of insulin-dependent diabetes mellitus in animals and in humans. We examined female non-obese-diabetic (NOD) mice, a diabetes-prone mouse strain with 70% spontaneous diabetes incidence and metabolic abnormalities in non-overtly diabetic litters. They were fed a diet containing 55% (n=27) or 15% (n=26) protein, respectively, after weaning. At an age of 30 weeks, non-diabetic NOD mice were submitted to an intravenous glucose tolerance test (0.5 g/kg body weight; blood samples were taken after 2, 4, 8, 10, 15, 20 and 30 min) and to perfusion of the pancreas (stimulation media were Krebs-Ringer-Hepes buffer with 5 mmol/l glucose, 30 mmol/l glucose and 5 mmol/l glucose plus 19 mmol/l arginine). Diabetic mice were removed from the experiment. Serum glucose concentration and body weight were monitored weekly. Food ingestion was checked at an age of 11 weeks. On average, the onset of diabetes was diagnosed in mice on a high-protein diet (19.7±1.3 weeks) 4 weeks earlier than in mice on a low-protein diet (23.5±1.1 weeks;P〈0.05). Non-diabetic NOD mice on a high-protein diet showed significantly better glucose tolerance (as determined by the glucose disappearance rate) and mean insulin secretion (at 30 mmol/l glucose). No difference in the serum glucose concentration between non-diabetic mice on the low-protein diet or high-protein diet could be proved. In non-diabetic mice on the high-protein diet the body weight and food ingestion exceeded those of mice on the low-protein diet (P〈0.05). High insulin secretion and glucose tolerance in non-diabetic mice may reflect the capacity of beta-cells to adapt; however, beta-cells tend to be destroyed under such circumstances. Thus, a high-protein diet promoted the onset of diabetes, but it did not increase significantly the incidence of the disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02048550
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Delaminationsverhalten von langfaserverstärkten thermoplastischen UD-Verbunden hergestellt aus unterschiedlichen Hybridgarnstrukturen (1997)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 28 (1997), S. 465-474 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Characterisation of the delamination behaviour of thermoplastic UD-composites made by different hybrid yarn structuresIn order to determine delamination behaviour of glass-fibre-reinforced polyamid composites the compression shear test and the DCB (Double Cantilever Beam)-, SEN- and NBT-test for mode-I- and the ENF (End Notched Flexure)-test for mode II-loading were used.By these tests the energy release rate G respectively K and the R cure (crack resistance curve) have been measured which characterise the crack resistance of the material against delamination.The composites were made by different hybrid yarn structures produced by air texturing (commingled yarn: COM), side-by-side arrangement (SBS), friction spinning (FS), Kemafil (KEM)- and Schappe(SCH)-technology. The influence of different glass fibre sizings was investigated.The results demonstrate the significant influence of different hybrid yarn structures and glass fibre coatings on fracture thoughness during crack propagation along the fibre/matrix interface. The best values were obtained for composites produced on the basis of commingled yarn structure.
    Notes: Zur Charakterisierung der Widerstandsfähigkeit gegen Delamination und Rißfortschritt wurde an thermoplastischen UD-Verbunden, die aus unterschiedlichen Hybridgarnstrukturen hergestellt worden sind, die Druckscherfestigkeit sowie interlaminare Bruch-zähigkeit mittels „Double Cantilever Beam“-Test (DCB), „Single Edge Notched“-Test (SEN) und „Notched Bending“-Test (NBT) für Mode I-Belastung und dem „End Notched Flexure“-Test (ENF) für Mode II-Belastung untersucht. Die Hybridgarnstrukturen unterscheiden sich ihrer Herstellugstechnologie entsprechend in der Anordnung der Verstärkungs-und thermoplastischen Matrixfilamente im Garn. In die Untersuchungen einbezogen wurden außerdem Verbunde mit unterschiedlicher Grenzschichtgestaltung. Ermittelt wurden die kritischen Energiefreisetzungstraten Gc bzw. die kritischen Spannungsintensitätsfaktoren Kc und für Mode I-Belastung die entsprechenden Rißausbreitungskurven, die die interlaminare Rißausbreitung charakterisieren. Die besten Ergebnisse wurden mit der lufttexturierten Hybridgarnstruktur erreicht.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19970281008
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Dynamische Simulation der Wechselwirkung von Turbulenz und chemischer Reaktion am Beispiel der Chloroformpyrolyse (1995)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 67 (1995), S. 1131-1132 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330670971
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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