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  • Citrate  (2)
  • Antiprogesterone  (1)
  • Chemical Engineering  (1)
  • 1
    Electronic Resource
    Electronic Resource
    ZK98299, a novel antiprogesterone that does not interact with chicken oviduct progesterone receptor
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Molecular Cell Research 1094 (1991), S. 185-192 
    Details
    ISSN: 0167-4889
    Keywords: (Chicken oviduct) ; Antiprogesterone ; Progesterone receptor
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0167-4889(91)90007-K
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Chronobiology of urinary citrate excretion amongst stone-formers and healthy males from North Western India (1991)
    Springer
    Urological research 19 (1991), S. 203-206 
    Details
    ISSN: 1434-0879
    Keywords: Urinary calculi ; Citrate ; Circadian rhythm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Urinary citrate excretion was estimated colorimetrically from urine samples collected every 3 h for 24 h from 25 healthy adult males (non-stone formers; mean age 39±7 years) and 25 male patients suffering from calcium nephrolithiasis (stone formers; mean age 41±6 years). The 24 h citrate excretion was 2.47±0.65 mmol in non-stone formers and 2.02±0.71 mmol in stone formers. This difference was not significant. However, cosinor rhythmometry revealed a significant circadian rhythmicity in urinary citrate excretion in the healthy males which was absent in the stone formers; the amplitude was 0.06 mmol in non-stone formers and 0.017 mmol in stone formers. The acrophase was located at 14:25 h in non-stone formers and at 23:30 h in stone formers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00303752
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Inhibition of Calcium Oxalate Monohydrate (COM) crystal growth by pyrophosphate, citrate and rat urine (1986)
    Springer
    Urological research 14 (1986), S. 299-303 
    Details
    ISSN: 1434-0879
    Keywords: COM crystal growth ; Pyrophosphate ; Citrate ; Rat urine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary An assay system for the measurement of the rate of Calcium Oxalate Monohydrate (COM) seed crystal growth in a metastable solution of calcium chloride and sodium oxalate containing traces of 14C-oxalic acid was used to assess the inhibitory activity of pyrophosphate (10−5 M-10−4 M), citrate (10−4 M-10−3 M) and urines of normal and pyridoxine deficient rats. Both pyrophosphate and citrate were strong inhibitors of COM crystal growth and caused a 50% decrease in crystal growth rate at 1.50×10−5 M and 2.85×10−4 M respectively. Normal rat urine strongly inhibited the COM crystal growth, while pyridoxine deficient animals showed a significant (p〈 0.01) decrease in mean inhibitory activity as compared to pair-fed controls. A lowered urinary inhibitory potential accompanied with hyperoxaluria and hypercalciuria, which is known to be associated with pyridoxine deficiency, may be a contributory risk of calcium oxalate crystallization and stone formation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00262379
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Evolutionary synthesis of separation processes (1981)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 27 (1981), S. 578-587 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: This paper deals with the problem of finding, among many alternatives, the sequence of separation units that will isolate desired products from given feed at the minimum cost. Multicomponent products can be specified. An evolutionary procedure is presented. This method consists of two phases. In the first phase, a good initial structure is created by heuristic methods. In the second phase, the initial structure is successively modified by making evolutionary structural changes. This logic has been programmed on a digital computer and has been tested on several problems.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690270407
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    Paper (German National Licenses)
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