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  • Articles  (118)
  • 1995-1999
  • 1980-1984  (109)
  • 1950-1954
  • 1940-1944  (9)
  • 1982  (109)
  • 1941  (9)
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  • 1995-1999
  • 1980-1984  (109)
  • 1950-1954
  • 1940-1944  (9)
Year
Journal
Topic
  • 1
    Electronic Resource
    Electronic Resource
    1,3-Dipolar cycloadditions to coordinated azide in cobalt chelate complexes of the type LCo(chelate)N3 (1982)
    s.l. : American Chemical Society
    Inorganic chemistry 21 (1982), S. 1226-1232 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic00133a069
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  • 2
    Electronic Resource
    Electronic Resource
    Photooxidation of water by p-benzoquinone (1982)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 104 (1982), S. 1103-1104 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00368a036
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  • 3
    Electronic Resource
    Electronic Resource
    Transient Raman scattering study of the initial semiquinone radical kinetics following photolysis of aqueous benzoquinone and hydroquinone (1982)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 104 (1982), S. 4789-4792 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00382a009
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  • 4
    Electronic Resource
    Electronic Resource
    Transient intermediates in the photo-Fries isomerization of phenyl acetate via spontaneous Raman spectroscopy (1982)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 104 (1982), S. 1805-1808 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00371a004
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  • 5
    Electronic Resource
    Electronic Resource
    Transient Raman scattering observation of surface reactions in aqueous titanium dioxide colloids (1982)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 104 (1982), S. 7322-7324 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00389a074
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  • 6
    Electronic Resource
    Electronic Resource
    Frost avoidance and freezing tolerance in Afroalpine ‘giant rosette’ plants (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 5 (1982), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract. The large leaf rosettes of the so-called ‘giant rosette’ plants which inhabit the alpine region of tropical mountains are composed of a great number of adult leaves surrounding a central cone of developing leaves. Upon onset of the nocturnal frost period the adult leaves nyctinastically bend inwards and form a night-bud around the central leaf bud. The insulating effect of the night-bud was analysed in four species: Senecio keniodendron, Senecio brassica. Lobelia keniensis and Lobelia telekii which grow on Mt Kenya (Kenya). Freezing is avoided by a delay of cooling which is sufficient until rewarming by the next day's sunshine. A consequence of this delay is that the temperature in the nocturnal bud remains higher than that of the outer leaves which are often stiffly frozen after cold nights. Only one freezing point was detected on the leaf temperature recordings. Depending on the water state, the freezing points were in the range — 1°C to —4.2°C. Sucrose, amounting to 38% of the leaf dry weight, may act as a cryoprotectant for the cell membranes. Frost hardiness of the leaves, as determined with a laboratory method, was sufficient to enable the plants to survive during the nocturnal frost temperatures as measured in the field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/1365-3040.ep11572080
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  • 7
    Electronic Resource
    Electronic Resource
    Determination of dependence of binding parameters on receptor occupancy (1982)
    Springer
    Bulletin of mathematical biology 44 (1982), S. 477-489 
    Details
    ISSN: 1522-9602
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Mathematics
    Notes: Abstract Measurements of the binding of ligand to receptors that are macromolecules, either free or components of biomembranes, often show deviation from what is expected of a simple reaction described by an association and a dissociation rate constant. A more versatile model and more discriminating experiments are required for a satisfactory explanation. This paper is based on a general model of the binding reaction in which the rate constants and equilibrium constant are dependent upon occupancy of receptors. The analysis of the model leads to three kinds of experiments: (1) equilibrium measurements which permit quantitative determination of a dissociation equilibrium parameter as a function of receptor occupancy; (2) measurements prior to equilibrium which yield the same information; and (3) measurements prior to equilibrium which reveal quantitatively the dependence of both association and dissociation rate parameters separately, on occupancy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02459404
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  • 8
    Electronic Resource
    Electronic Resource
    Galvanostatic cycling of graphite intercalation electrodes with anions in aqueous acids (1982)
    Springer
    Journal of applied electrochemistry 12 (1982), S. 505-515 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Natural graphite flakes (80 wt%), with polypropylene (20 wt%) as a binder, constitute a practical and non-expensive graphite electrode of high crystallinity ‘CPP’. Galvanostatic cycling of these electrodes with current densities in the range 0.3–30 mA cm−2 (charging time 5–120 min) has been investigated in aqueous acids (12, 20 and 36 mol dm−3 HF, 6 and 12 mol dm−3 H2SO4, 4 mol dm−3 HClO4). The anion of the acid is anodically intercalated and cathodically de-intercalated. In spite of the high water concentrations, quantitative current efficiencies have been obtained. From variation of the rest times after charging, a corrosion current density of less than 0.03 mA cm−2 (j ch=3 mA cm−2) has been derived. The overvoltage during charge and discharge is typically about 0.1 V. The potential at the start of the charging process coincides with the intercalation potential defined previously. A strong electrode formation effect is observed upon cycling. The electrode is initially smooth and non-porous; it acquires a high surface roughness after a few cycles, which is then stable. The initial charging curves increase witht 1/2, while the charging curve after electrode formation is linear. Both clearly indicate a linear relationship between surface concentration of intercalated anions and potential. This agrees with our previous finding of linear dependence with respect to acid concentration in the solution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00614976
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  • 9
    Electronic Resource
    Electronic Resource
    Chromosomal investigation ofCtenopharyngodon idella x Aristichthys nobilis hybrids (1982)
    Springer
    Cellular and molecular life sciences 38 (1982), S. 319-319 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Diploid, triploid, and gynogenetic offspring resulted from hybridizing femaleCtenopharyngodon idella with maleAristichthys nobilis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01949366
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  • 10
    Electronic Resource
    Electronic Resource
    Zum Nachweis von Barbitalen und Sulfamiden (1941)
    Springer
    Microchimica acta 29 (1941), S. 206-212 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary The author describes some crystalline precipitations of some barbitals i. e. Veronal, Dial, Luminal, Evipan, Numal, Phanodorm, Pernocton, Sandoptal, Prominal, and Noctal with yttrium nitrate and with the aquopentammino-, chloronitrotetrammino- and diaquotetramminocobaltiates. The sensitivities of these precipitations were determined. In the same way crystalline precipitations of sulfanilamide, “Dagénan”,p-amidobenzene-sulfamidothiazol, Prontosil, and Soluseptazine with phosphotungstic acid and other precipitants of alkaloids were investigated.
    Abstract: Résumé (W) L'auteur décrit des précipitations cristallines de quelques barbituriques (notamment Veronal, Dial, Luminal, Evipan, Numal, Phanodorme, Pernocton, Sandoptal, Prominal et Noctal), avec le nitrate d'yttrium et les complexes de cobalt: sel de cobalt-III-aquo-pentammine, sel de cobalt-III-chloronitro-tétrammine et sel de cobalt-III-diaquo-tétrammine; il détermine également la sensibilité de ces réactions. Il a entrepris aussi des précipitations cristallines de sulfanilamide, de Dagénan, dep-amidobenzolsulfamidothiazol (Cibazol), de Prontosil et de Soluseptazine avec l'acide phosphotungstique et d'autres moyens de précipitation d'alcaloïdes.
    Notes: Zusammenfassung Es wurden Kristallfällungen von einigen Barbitalen, nämlich von Veronal, Dial, Luminal, Evipan, Numal, Phanodorm, Pernocton, Sandoptal, Prominal und Noctal mit Yttriumnitrat und mit Aquopentammin-, Chloronitrotetrammin- und Diaquotetramminkobaltiaken beschrieben und ihre Empfindlichkeit bestimmt. Ebenso wurden Kristall-fällungen von Sulfanilamid, Dagénan, p-Amidobenzolsulfamidothiazol, Prontosil und Soluseptazine mit Phosphorwolframsäure und anderen Alkaloidfällungsmitteln untersucht.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01413918
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