Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Chemistry  (10)
  • Calcium  (2)
  • Carbohydrate-rich diet  (2)
  • Eye  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Free Radical Biology and Medicine 8 (1990), S. 217-222 
    ISSN: 0891-5849
    Keywords: Aging ; Alpha-crystallin ; Eye ; High molecular weight protease ; Irradiation ; Lens ; Macroxyproteinase (M.O.P.) ; Oxidation ; Oxidative stress ; Proteolysis
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Free Radical Biology and Medicine 3 (1987), S. 371-377 
    ISSN: 0891-5849
    Keywords: ATP ; Aging ; Antioxidants ; Cataract ; Eye ; Free radicals ; Oxidative stress ; Protein cross-linking ; Protein degradation ; Proteolysis ; Ubiquitin
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 7 (1971), S. 93-102 
    ISSN: 1432-0827
    Keywords: Strontium ; Vitamin D3 ; Calcium ; Absorption ; Bone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Description / Table of Contents: Résumé Des poulets, âgés de 2 semaines, après a voir été soumis pendant 7 jours à un régime pauvre en calcium (0,1%), riche en vitamine D3, à contenu stable en strontium à une concentration équimolaire à 1,2% de calcium, reçoivent à nouveau une alimentation normale. Les graves lésions osseuses, provoquées par le régime au strontium, disparaissent au bout de 3 jours d'alimentation normale. L'inhibition du mécanisme d'absorption intestinal du calcium et l'action inhibitrice initiale du strontium alimentaire sont totalement abolies. Cependant les troubles de la minéralisation ne disparaissent que partiellement.
    Abstract: Zusammenfassung Nachdem normale, 2-wöchige Kücken während 7 Tagen eine calciumarme (0,1%), Vitamin D3-reiche und 2,62% kaltes Strontium (molaraequivalent mit 1,2% Calcium) enthaltende Nahrung erhielten, wurden sie wieder auf normales Futter gesetzt. Die schwere Knochenläsion, die sich durch die Strontiumfütterung entwickelt hatte, bildete sich zu einem großen Teil schon nach 3 Tagen normaler Nahrung wieder zurück. Die Hemmung der Calciumabsorption im Darm, die anfängliche inhibierende Wirkung des Strontiums aus der Nahrung, wurde vollständig aufgehoben; dagegen besserte sich der Mineralisationsdefekt nur teilweise.
    Notes: Abstract Two week old normal chicks, after having been fed a low-calcium (0.1%), vitamin D3-replete diet containing stable strontium at a level equimolar to 1.2% calcium for 7 days, were transferred back to a normal diet. The severe bone lesion that developed with strontium feeding was, to a large extent, reversed after only 3 days on the normal diet. The inhibition of the intestinal calcium absorptive mechanism, the initial inhibitory action of dietary strontium, was fully reversed whereas the recovery from the defect in mineralization was only partially reversed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 7 (1971), S. 81-92 
    ISSN: 1432-0827
    Keywords: Strontium ; Vitamin D3 ; Calcium ; Absorption ; Bone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Description / Table of Contents: Résumé Des poulets normaux, âgés de 2 semaines, présentent une condition voisine d'une rachitisme grave, lorsqu'on les soumet pendant 7 jours à un régime pauvre en calcium (0,1%), riche en vitamine D3, et contenant une quantité stable de strontium, équimolaire à 1,2% de calcium. Alors que l'on pensait que le rachitisme induit par le strontium était lié à une inhibition directe de la calcification, il apparait qu'avant toute modification osseuse apparente, le strontium inhibe la production du CaPB induit par la vitamine D3, ainsi que le mécanisme d'absorption intestinale du calcium. Il semble que cet effet du strontium soit lié à sa participation dans le mécanisme normal de la régulation du calcium au cours de la synthèse de CaBP.
    Abstract: Zusammenfassung Normale, 2wöchige Kücken gerieten innerhalb von 7 Tagen in einen schweren, rachitisänhlichen Zustand, wenn sie eine calciumarme (0,1%0 und Vitamin D3-reiche Nahrung erhielten, welcher kaltes Strontium in einer Konzentration von 2,62% (molaraequivalent mit 1,2% Calcium) zugesetzt wurde. Während man früher vermutete, daß die “Strontium-Rachitis” nur durch eine direkte Inhibition der Verkalkung entstehe, konnte nun gezeigt werden, daß — bevor eine sichtbare Knochenveränderung eintritt — die Vitamin D3-gesteuerte Bildung von CaBP (calciumbindendes Protein) und gleichzeitig der Mechanismus der Calciumabsorption im Darm durch Strontium gehemmt wird. Die gefundenen Resultate weisen auf die Möglichkeit hin, daß dieser Strontiumeffekt auf dessen Interferenz mit dem normalen Mechanismus der Calciumregulation durch die CaBP-Syntheses zurückgeführt werden kann.
    Notes: Abstract Normal 2-week-old chicks, when fed a low-calcium (0.1%), vitamin D3-replete diet containig stable strontium at a level equimolar to 1.2% calcium, developed a severe rachiticlike condition within 7 days. Whereas formerly it was suspected that “strontium rickets” resulted from direct inhibition of calcification only, it was shown that, preceding any detectable bone change, strontium inhibited vitamin D3-induced CaBP production and, simultaneously, the intestinal calcium absorptive mechanism. The results suggest the possibility that this effect of strontium may be due to its interference with the normal mechanism of calcium regulation of CaBP synthesis.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    European journal of applied physiology 57 (1988), S. 70-74 
    ISSN: 1439-6327
    Keywords: Energy metabolism ; Carbohydrate-rich diet ; Glycogen ; Low-carbohydrate diet
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of simple-carbohydrate (CHO)- and complex-CHO-rich diets on skeletal muscle glycogen content were compared. Twenty male marathon runners were divided into four equal groups with reference to dietary consumption: depletion/simple, depletion/complex, non-depletion/simple, and nondepletion/complex. Subjects consumed either a low-CHO (15% energy [E] intake), or a mixed diet (50% CHO) for 3 days, immediately followed by a high-CHO diet (70% E intake) predominant in either simple-CHO or in complex-CHO (85% of total CHO intake) for another 3 days. Skeletal muscle biopsies and venous blood samples were obtained one day prior to the start of the low-CHO diet or mixed diet (PRE), and then again one day after the completion of the high-CHO diet (POST). The samples were analysed for skeletal muscle glycogen, serum free fatty acids (FFA), insulin, and lactate and blood glucose. Skeletal muscle glycogen content increased significantly (p〈0.05) only in the nondepletion/simple group. When groups were combined, according to the type of CHO ingested and/or utilization of a depletion diet, significant increases were observed in glycogen content. Serum FFA decreased significantly (p〈0.05) for the nondepletion/complex group only, while serum insulin, blood glucose, and serum lactate were not altered. It is concluded that significant increases in skeletal muscle glycogen content can be achieved with a diet high in simple-CHO or complex-CHO, with or without initial consumption of a low-CHO diet.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 1439-6327
    Keywords: Energy metabolism ; Carbohydrate-rich diet ; Lipoprotein lipase ; Free fatty acids ; Insulin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A comparison of the influence of simple and complex carbohydrate (CHO) consumption on adipose tissue- and skeletal muscle-lipoprotein lipase activity (AT-LPLA, SM-LPLA) was examined. Twenty male marathon runners were divided into two equal dietary groups: simple-CHO and complex-CHO. Half of the subjects in each group consumed either a low-CHO (15% energy [E] intake), or a mixed diet (50% CHO) for 3 days. Immediately following this dietary period, the subjects consumed a CHO-rich diet (70% E intake) predominant in simple-CHO or in complex-CHO for an additional 3 days. Thereafter, all subjects returned to a normal mixed diet. Skeletal muscle biopsies, adipose tissue aspirations, and venous blood samples were obtained prior to dietary manipulation (PRE), upon completion of the 6 day diet (POST I), and 2 weeks after returning to a normal diet (POST II). The samples were analysed for AT-LPLA, SM-LPLA, serum insulin, and free fatty acids (FFA), and blood glucose, and lactate. SM-LPLA fell 71% from PRE values of 0.39±0.30 μ mol · g−1 · h−1 to POST I values of 0.11 ±0.09 μ mol · g−1 · h−1 (means±SD) (p〈0.05), after a complex-CHO diet. However, the simple-CHO diet did not alter SM-LPLA. AT-LPLA similarly decreased (p〈0.05) after the complex-CHO diet, and no significant decrease was noted after the simple-CHO diet. Serum FFA decreased significantly (p〈0.05) after a simple-CHO diet (0.82±0.13 to 0.65±0.10 mmol l−1) but were unchanged after a complex-CHO diet. Blood glucose and lactate, and serum insulin were not altered following a CHO-rich diet.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 36 (1998), S. 2069-2079 
    ISSN: 0887-624X
    Keywords: Candida antarctica lipase ; Novozym 435® ; polyester ; enzymatic polymerization ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Preliminary enzymatic polymerization studies in the simple stoichiometric adipic acid/butane-1,4-diol system using lipase B from Candida antarctica, immobilized as Novozym 435®, suggest that in solvent-free conditions a step-growth mechanism operates involving the sequential addition of an AB synthon by esterification mode only. Conversely, in toluene as solvent there is a change to the more facile transesterification mode in line with the conventional polyesterification procedure, pointing to a change in specificity of the lipase. Evidence is drawn from qualitative studies using a series of synthetic intermediates, enabling authentication of product mixtures together with an indication of the comparative reactivity of species along the proposed reaction pathway. © 1998 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 36: 2069-2080, 1998
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 8 (1985), S. 290-292 
    ISSN: 0935-6304
    Keywords: Liquid chromatography, HPLC ; Post column, colorimetric detection ; Sugars ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 20 (1974), S. 454-461 
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Turbulent pipe flow was examined by measuring the radial dispersion of dyed fluid introduced at an axial point source within the flow. From the classical theoretical results of G. I. Taylor it was possible thereby to calculate various parameters that characterize the structure of the turbulent flow field. A comparison was made between water, and aqueous solutions of polyethylene oxide (Polyox) at concentrations up to 50 ppm (by weight). Results indicate that Polyox affects the turbulence in the following ways: (1) intensity is reduced, (2) the energy spectrum is shifted toward low frequency, (3) dispersion occurs largely through large scale motion, and intermittency is increased. Indication is also seen that a simple exponential form for the Lagrangian correlation coefficient is superior to other often recommended models.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Advanced Materials for Optics and Electronics 7 (1997), S. 215-224 
    ISSN: 1057-9257
    Keywords: silicon ; epitaxy ; kinetics ; dynamics ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: The value of in situ monitoring to study growth dynamics and surface reaction kinetics in a gas source molecular beam epitaxy process is illustrated with reference to the growth of Si films on Si(001) substrates using a beam of disilane (Si2H6). By using a combination of reflection high-energy electron diffraction (RHEED) and reflection anisotropy spectroscopy (RAS), we show first how morphological (long-range order) and local electronic structure effects can be separated in the evaluation of growth dynamics. This involves the measurement of step density changes by RHEED concomitantly with the variation in domain coverage on the Si(001) (2×1)+(1×2) reconstructed surface by RAS. This approach is then extended to investigate the kinetics of hydrogen desorption, which is the rate-limiting step in Si growth from Si2H6. It is shown that over a significant temperature range, zeroth-order kinetics are obeyed and this is explained on the basis of a step-mediated desorption process. Finally we show how this influences the growth rate on substrates of differing degrees of vicinality. © 1997 John Wiley & Sons, Ltd.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...