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  • 2005-2009  (106)
  • 1985-1989  (1,159)
  • 1980-1984  (867)
  • 1940-1944  (245)
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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 85 (1981), S. 94-97 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of chemical & engineering data 28 (1983), S. 148-150 
    ISSN: 1520-5134
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of chemical & engineering data 31 (1986), S. 273-274 
    ISSN: 1520-5134
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 4
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    Unknown
    Saranac Lake, N.Y., etc. : Periodicals Archive Online (PAO)
    Management Review. 71:4 (1982:Apr.) 42 
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 231 (1981), S. 51-56 
    ISSN: 1432-0711
    Keywords: Dizygotic twinning ; Implantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two ova implanted in one uterus were found at the autopsy of a 28-year-old woman. The ovulation age of both implantations has been estimated to be 10–12 days. The presence of two equally large corpora lutea, one in each ovary, indicates that the implanted ova originated from different ovaries. Thus, an “ovulatio biovarialis” seems to be the basis for the dizygotic twinning in this case. The case is believed to be the only documented example of a very early dizygotic, fraternal pregnancy in humans.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 36 (1984), S. 662-667 
    ISSN: 1432-0827
    Keywords: Vitamin D ; Hyp ; X-linked hypophosphatemia ; Metabolic bone disease ; Mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary Hyp mice are a model for human X-linked hypophosphatemia (vitamin D-resistant rickets.) To determine whether an abnormality of vitamin D metabolism exists in this disease, the profiles of the metabolites of vitamin D were determined in normal andHyp mouse plasma.Hyp and normal mice were fed a vitamin D-deficient diet and received 1,23H-vitamin D3 at 16 Ci/mmol by stomach tube at 5 ng/g body weight (0.21 µCi/g b.w.) on alternate days for 14 days. The dose of vitamin D given maintained near normal plasma 25-OH-vitamin D. Thus the mice were in a vitamin D-replete state with all metabolite pools labeled with3H. Plasma was collected from 4 normal and 4Hyp mice. The plasma was extracted, and the extracts were chromatographed separately for each mouse on an LH-20 column. Each major peak of radioactivity was rechromatographed using high performance liquid chromatography on a Zorbax-Sil column using solvent systems known to resolve several vitamin D metabolites. Twenty-one radioactive peaks were identified. The disintegrations per minute of3H in each peak were quantified and converted to plasma concentration using the known specific activity of the administered vitamin D. The 25-OH-vitamin D accounted for 55% of the circulating radioactivity, and 24,25-(OH)2-vitamin D accounted for 22%. The plasma levels of 24,25-(OH)2-vitamin D were similar to levels previously reported by us using protein binding assays. No peaks of radioactivity were missing in the plasma extracts of theHyp mice. Also there was no evidence that plasma 24,25-(OH)2-vitamin D was elevated in theHyp mice.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-1459
    Keywords: Multiple sclerosis ; MS-related material ; Leucocyte adherence inhibition test
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Zur Ermittlung der Wertigkeit von als Tests für die Multiple Sklerose (MS) vorgeschlagenen Verfahren wurde die Reaktivität der Leukozyten gegenüber einer Antigenpräparation aus dem Blut von Patienten mit einer MS (MS-bedingte Substanz — MSRM) im Leukozyten-Adhärenz-Inhibitions-(LAI) Test untersucht. Die Ergebnisse lassen auf die Existenz einer antigenen Substanz im Blut von MS-Patienten schließen. Mit dem modifizierten LAI-Test, unter Zusatz von Kälberserum, ergibt sich eine signifikante Reaktion der Leukozyten der MS-Fälle gegenüber anderen neurologischen Erkrankungen und Kontrollen. Die relativ hohe positive Nachweisrate bei der MS, wie sie Angers u. Mitarb. [1] fanden, war nicht feststellbar. Daher sind vor der diagnostischen Anwendung der Methode weitere Analysen zur Charakterisierung des Antigens und zu den Voraussetzungen des Testsystems erforderlich.
    Notes: Summary To determine the value of laboratory methods proposed as tests for multiple sclerosis (MS), the reactivity of leucocytes to a preparation of an antigen from the blood of patients with MS (MS-related material) was studied in the leucocyte adherence inhibition (LAI) test. The results point to the existence of an antigenic substance in the blood of MS patients. When the LAI test was modified by the addition of calf serum there was a significant reaction of the leucocytes of MS compared to other neurological diseases and controls. The relatively high positive rate in MS previously reported was not detected. Therefore, further analyses concerning the characterisation of the antigen and the conditions of the test system will be necessary before the method can be used for diagnosis.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Zusammenfassung der Ergebnisse 1. Die Absorption ultravioletten Lichtes von der Wellenlänge λ=3500–2750 Å durch verschiedene Pflanzenwachse wurde photographisch und spektrophotometrisch untersucht. DasKutinwachs vonClivia nibilis, dasKorkwachs Friedelin sowie dieOberflächenwachse vonPinus silvestris, Ricinus communis, Brassica oleracea undCopernicia cerifera wurden geprüft. 2. Photographische Aufnahmen im genannten Wellenlängengebiet ergeben nur eine geringe Absorption des Lichtes durch die Wachse. Als Ausnahme konnte beiClivia-Epidermen durch die Wachsextraktion eine erhebliche Zunahme der Durchlässigkeit für langwelliges, ultraviolettes Licht festgestellt werden. 3. Die spektrophotometrische Untersuchung von Lösungen desPinus-, Copernicia- undKorkwaches in Chloroform ergibt einemaximale Extinktion bei λ=3000–2900 Å. Die Extinktionskurve desRicinus-Wachses weist im untersuchten Spektralgebiet kein Maximum auf, sondern steigt stetig mit abnehmender Wellenlänge. 4. Die Berechnung der Absorption für die auf den Pflanzen vorkommenden, kompakten Wachsschichten ergibt, daß durch Wachsauflagerungen von 1–2 μ Dicke eine Schwächung des auffallenden ultravioletten Lichtes um das 1,1–1,3 fache eintritt. Beim Durchgang durch Schichten von 15 μ Dicke wie beiCopernicia, wird die ursprüngliche Lichtintensität auf etwa 1/9 reduziert.Pinus-Wachs weist die weitaus stärkste Absorption der untersuchten Substanzen auf. Die Untersuchungen wurden zum Teil im pflanzenphysiologischen Institut der Eidgenössischen Technischen Hochschule in Zürich durchgeführt. Wir sprechen dessen Vorstand, Herrn Prof. Dr.Frey-Wyssling, für das Interesse, welches er unserer Arbeit entgegenbrachte, den besten Dank aus.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1573-0700
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    International journal of infrared and millimeter waves 3 (1982), S. 83-95 
    ISSN: 1572-9559
    Keywords: molecular infrared spectroscopy ; Stark effect ; methylacetylene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The υ5 band of methylacetylene has been studied simultaneously by means of CO2 Laser Stark spectroscopy and high resolution infrared absorption spectroscopy (0.012 cm−1). The primary aim of this work was to assign all the Stark coïncidences. Effective vibration-rotation parameters and the dipole moment of the v5=1 state have been determined.
    Type of Medium: Electronic Resource
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