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  • LUNAR AND PLANETARY EXPLORATION  (723)
  • Organic Chemistry  (688)
  • Cell & Developmental Biology  (317)
  • 1975-1979  (1,728)
  • 1977  (1,728)
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Keywords
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  • 1975-1979  (1,728)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Anatomical observations on the ending of the human thoracic ductSupported by FundaççãTo de Amparo a Pesquisa do Estado de São Paulo, Brazil. (1977)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 153 (1977), S. 363-369 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Fifty-one cadavers of human adults of both sexes were examined for the raminfications and site of opening of the cervical segment of the thoracic duct. It was found that the duct opened into veins of the neck through either one (84.31%) or two branches (15.69%). The most frequent site of opening was in the junction of the left internal jugular vein with the subclavian vein (18 individuals), but another frequent site (15 individuals) was in the internal jugular vein. The duct opened at the angle formed by the internal jugular vein and the internal posterior jugular vein in five individuals, and at a variety of the other locations in the remaining cadavers. These results are compared with the findings of previous investigators.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051530303
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  • 2
    Electronic Resource
    Electronic Resource
    Thalliumverbindungen als Katalysatoren für Umesterungen mit Glycidol und für Esteraustauschreaktionen mit Glycidylacetat (1977)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 60 (1977), S. 1845-1860 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Thallium compounds as catalysts for transesterifications and ester exchange reactionsThe transesterification of di-, tri- and tetracarboxylic alkyl esters with 2,3-epoxy-propanol was investigated in the presence of various metal compounds as catalysts. It was found that only thallium compounds catalyse the reactions under mild conditions without decomposition of 2,3-epoxypropanol. Many thallium compounds also proved to be very good catalysts for the reactions of 2,3-epoxypropanol with alkoxysilanes and the ester exchange reactions of di-, tri- and tetracarboxylic alkyl esters with 2,3-epoxypropyl-acetate.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19770600603
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  • 3
    Electronic Resource
    Electronic Resource
    Folgeprodukte halogenierter Aldehyde. XI [1]. Substitutionen am 2,5-Bis-trichlormethyl- und 2-Trichlormethyl-5-dichlormethylen-1,3-dioxolan-4-on-oxim (1977)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 319 (1977), S. 317-323 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Derivatives of Halogenated Aldehydes. XI. Substitution Reactions of 2,5-Bis-Trichloromethyl- and 2-Trichloromethyl-5-dichloromethylene-1,3-dioxolan-4-one Oxime2,5-Bis-trichloromethyl- (1) and 2-trichloromethyl-5-dichloromethylene-1,3-dioxolan-4-one oxime 2 are acylated with acyl halides, alkyl chlorocarbonates and N,N-dimethylcarbamyl chloride to give the corresponding O-acyl oximes 4-6, 9, 11 and 13. The addition of the oximes 1 and 2 to isocyanates yields the oxime carbamates 7 and 10, and the addition to N-acetyl-2,2,2-trichloroacetaldimine leads to the O-(1-acetamino-2,2,2-trichloroethyl) oximes 8 and 12. Oxime 2 forms a sodium salt 3 which gives the O-alkyl (15), the O-aryl (16) and the O-sulphonyl oximes (14) by reactions with alkyl halides or dialkyl sulfates, with activated aryl halides or with sulphonyl chlorides, respectively.
    Notes: 2,5-Bis-trichlormethyl- (1) und 2-Trichlormethyl-5-dichlormethylen-1,3-dioxolan-4-on-oxim 2 werden durch Acylieren mit Carbonsäurechloriden, Chlorkohlensäureestern und N,N-Dimethylcarbamoylchlorid in die entsprechenden O-Acyl-oxime 4-6, 9, 11 und 13 übergeführt. Durch Addition der Oxime 1 und 2 an Isocyanate entstehen die Oxim-carbamate 7 und 10 und durch Addition an N-Acetyl-2,2,2-trichloracetaldimin die O-(1-Acetamino-2,2,2-trichloräthyl)-oxime 8 und 12. Das Oxim 2 bildet ein Natriumsalz 3, das bei den Umsetzungen mit Alkylhalogeniden oder Dialkylsulfaten die O-Alkyl-oxime 15, mit aktivierten Arylhalogeniden die O-Aryl-oxime 16 und mit Sulfonsäurechloriden die O-Sulfonyl-oxime 14 ergibt.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19773190220
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  • 4
    Electronic Resource
    Electronic Resource
    Folgeprodukte halogenierter Aldehyde. XII [1]. O-Alkyl-O, O-bis-(1,2,2,2-tetrachloräthyl)- und O-Aryl-O, O-bis-(1,2,2,2-tetrachloräthyl)-phosphorsäureester (1977)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 319 (1977), S. 702-704 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Derivatives of Halogenated Aldehydes. XII. Alkyl-di(1,2,2,2-tetrachloroethyl) and Aryl-di(1,2,2,2-tetrachloroethyl) phosphates
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19773190424
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  • 5
    Electronic Resource
    Electronic Resource
    Folgeprodukte halogenierter Aldehyde IX. Die Synthese von Dialkyl-1,2,2,2-tetrachloräthyl- und Alkyl-phenyl-1,2,2,2-tetrachloräthyl-phosphaten (1977)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 319 (1977), S. 23-28 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Derivatives of Halogenated Aldehydes. IX. The Synthesis of Dialkyl-1,2,2,2-tetrachloroethyl- and Alkyl-phenyl-1,2,2,2-tetrachloroethyl PhosphatesDialkyl-1,2,2,2-tetrachloroethyl- (3a-t) and alkyl-phenyl-1,2,2,2-tetrachloroethyl phosphates 3u, v are prepared by reactions of 1,2,2,2-tetrachloroethyl phosphorodichloridate 1 with one mole of an alcohol or phenol to give alkyl(phenyl)-1,2,2,2-tetrachlorethyl phosphorochloridates 2a-k, followed by treatment of the latter with a second alcohol. The n.m.r. spectra of 2 and 3 are discussed.
    Notes: Dialkyl-1,2,2,2-tetrachloräthyl- (3a-t) und Alkyl-phenyl-1,2,2,2-tetrachloräthyl-phosphate 3u, v werden dargestellt durch Umsetzungen von 1,2,2,2-Tetrachloräthyl-dichlorphosphat 1 mit einem Mol eines Alkohols oder Phenol zu den Alkyl(Phenyl)-1,2,2,2-tetrachloräthyl-chlorphosphaten 2a-k und deren Reaktionen mit einem zweiten Alkohol. Die 1H-NMR-Spektren von 2 und 3 werden diskutiert.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19773190105
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  • 6
    Electronic Resource
    Electronic Resource
    Synthesen von Heterocyclen, CCV. Reaktionen mit cyclischen Oxalylverbindungen, XX Reaktionen von 4-Benzoyl-5-phenyl-2,3-dihydrofuran-2,3-dion mit aliphatischen Nitrilen (1977)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1977 (1977), S. 1751-1757 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Syntheses of Heterocyclic Compounds, CCV. - Reactions of Cyclic Oxalyl Compounds, XX. - Reactions of 4-Benzoyl-5-phenyl-2,3-dihydrofuran-2,3-dione with Aliphatic NitrilesThe reaction of 4-benzoyl-5-phenyl-2,3-dihydrofuran-2,3-dione (1) with butyro-. isobutyro-, and phenylacetonitrile under thermolysis conditions leads via the dibenzoylketene-intermediate 2 to the 2-alkyl-5-benzoyl-6-phenyl-1,3-oxazin-4-ones 3, which can be converted by hydrolysis into the N-acylacrylamides 4. 2-Benzoyl-3-phenyl-5,6-dihydro-1 H-pyrano[2,3-c]isoquinoline-1,6-dione (5) is formed as a by-product in the reaction of 1 and phenylacetolnitrile. The structure of 5 is confirmed by alkylation and oxidation reactions.
    Notes: 4-Benzoyl-5-phenyl-2,3-dihydrofuran-2,3-dion (1) reagiert mit Butyro-, Isobutyro- und Phenylacetonitril unter Thermolysebedingungen über die Dibenzoylketen-Zwischenstufe 2 zu den 2-Alkyl-5-benzoyl-6-phenyl-1,3-oxazin-4-onen 3, die sich zu den N-Acylacrylsäureamiden 4 hydrolysieren lassen. Aus 1 und Phenylactonitril entsteht als Nebenprodukt 2-Benzoyl-3-phenyl-5,6-dihydro-1 H-pyrano[2,3-c]isochinolin-1,6-dion (5), dessen Struktur durch Alkylierung sowie Oxidation mit KMnO4 gesichert wurde.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.197719771022
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  • 7
    Electronic Resource
    Electronic Resource
    Thrombin potentiates the mitogenic response of cultured fibroblasts to serum and other growth promoting agents (1977)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 92 (1977), S. 233-239 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Thrombin may stimulate the proliferation of resting fibroblasts by itself or by potentiating the mitogenic effects of other growth stimulating agents. When added alone to a dense quiescent culture of chick embryo fibroblasts in either a serum-free or a low serum medium, thrombin stimulates these cells to proliferation at a rate comparable to that seen with 5% serum. In the case of rabbit corneal fibroblasts neither fibroblast growth factor nor thrombin is particularly effective as a growth stimulant when added alone but exhibited a pronounced synergism on cell proliferation when present together. Established cell lines in the resting state, including 3T3, SV-3T3, 3T6, BHK-21 and 3T3 injected with avian sarcoma virus strain B77 (B77-3T3), are not responsive to thrombin alone. When the serum concentration in the medium equals or exceeds 2%, thrombin potentiates the mitogenic response of 3T3 cells to serum factors. With the exception of 3T3 and SV3T3 cells, the other cell lines show a potentiation of growth when thrombin is added to a low-serum (0.5%) medium containing epidermal growth factor and prostaglandin F2α. The addition of thrombin to cultures of B77-3T3 cells growing in the presence of epidermal growth factor and prostaglandin F2α does not increase the initial growth rate of these cells but increases significantly the final cell density of these cultures.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1040920211
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  • 8
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    Asteroid families - Observational evidence for common origins (1977)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: Colors of minor planets in the UBV system indicate compositions quite distinct from those of the field population in each of three Hirayama families. The Eos and Koronis families apparently originated from the collisional fragmentation of undifferentiated silicate bodies, and the Nysa group from a geochemically differentiated parent body
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Science; 197; July 15
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
    Electronic Resource
    Electronic Resource
    Zur Bindungsisomerisierung von Acetylen- und Allen-Kohlenwasserstoffen. II [1]. Kinetische Untersuchungen über die Isomerisierung von Propin und Allen an einem sauren Molekularsiebkatalysator in der Gasphase (1977)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 319 (1977), S. 655-666 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: About the Bond Isomerization of Acetylenic and Allenic Hydrocarbons. II. Kinetic Studies on the Isomerization of Propine and Allene with an Acidic Molecular Sieve Catalyst in the Gas PhaseThe gas phase isomerization of propine and allene (propadiene) was studied on a molecular sieve 13X, modified with Ni and Ca, in the temperature range of 108-173 °C with the aid of a close circulation apparatus. The bond isomerization may be considered as an example of a monomolecular, reversible, heterogeneous catalyzed reaction of the type A ⇌ B. For the studied isomerizations the rate equations of the Langmuir-Hinshelwood-type were derived by kinetic analysis of the experimentally obtained dependence of the mole fractions from the residence time. The rate and adsorption constants of the Langmuir-Hinshelwood equations were determined, their physical interpretation was possible.
    Notes: Die Gasphasen-Isomerisierung des Propins und Allens (Propadiens) wurde an einem mit Ni und Ca modifizierten Molekularsieb vom Typ 13 X im Temperaturbereich von 108 bis 173 °C in einer Zirkulationsapparatur mit geschlossenem Kreislauf kinetisch verfolgt. Für die als Prototyp einer monomolekularen, reversiblen, heterogen katalysierten Reaktion vom Typ A ⇌ B anzusehende Bindungsisomerisierung wurden vollständige Geschwindigkeitsausdrücke vom Langmuir-Hinshelwood-Typ abgeleitet und durch kinetische Analyse der experimentell bestimmten Molenbruch-Kontaktzeit-Verläufe die Geschwindigkeits- und Adsorptionsgleichgewichtskonstanten ermittelt. Sämtliche Konstanten sind physikalisch interpretierbar.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19773190416
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  • 10
    Electronic Resource
    Electronic Resource
    Struktur von Cantharidin, C10H12O4 (1977)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 60 (1977), S. 740-742 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Structure of Cantharidine, C10H12O4An X-ray structure determination of the title compound confirms the correctness of the molecular stereochemistry as deduced earlier from chemical considerations.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19770600307
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