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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 242 (1974), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Optical and quantum electronics 2 (1970), S. 29-35 
    ISSN: 1572-817X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract When using nitrobenzene Kerr cells and single element birefringent prisms in digital light deflectors one encounters the problem that the deflection pattern moves with a change of the operating temperature of the system. This paper describes how, by inverting the prism with the largest refracting angle, this effect can be eliminated while retaining the advantages offered by single element prisms. The operating temperature range is now of the order of 10° C compared with approximately 0.07° C for the conventional system.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 104 (1973), S. 1530-1533 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Raney nickel desulfuration of 3.6-epidithio-l-prolyl-l-proline anhydride andcis-3.6-bis(ethylthio)-l-prolyl-l-proline anhydride yields racemiccis-prolyl-proline anhydride, whereas after the reaction of 3-ethylthio-l-prolyl-l-proline anhydride no inversion of configuration was observed.—During the action of Raney nickel on one asymmetric center the configuration is only retained if steric factors inhibit an inversion.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 103 (1972), S. 736-743 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Durch Einleiten von Schwefelwasserstoff in Thiophosphonsäure-O-esterchloride (1) entstehen Thiophosphonsäureanhydride (2), die trimer sind und den Schwefel exocyclisch am Phosphor gebunden enthalten. Die 2 reagieren mit sek. Aminen zu Salzen der bisher unbekannten Thiophosphonsäuremonoamide, die durch Ansäuern in Freiheit gesetzt werden können.
    Notes: Abstract If hydrogen sulfide is passed into boiling O-alkyl-phosphonochloridothioates (1) trimer thiophosphonic anhydrides (2) are formed containing the sulfur outside the six-membered ring. The reaction of 2 with secondary amines gives salts of thiophosphonic monoamides that can be set free by acidification.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 105 (1974), S. 1044-1049 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract On photolysis of acetyl chloride (wave length 254 nm) in ethereal solution the main product is 3-ethoxy-2-butanone (1). The by-products are 2.3-diethoxy-butane (3), butane-2.3-dione, ethyl acetate and 3-acetoxy-2-butanone.1 is formed by the substitution of ether by the radical pair (CH3CO·· Cl) within the solvent cage. Diffusion of the radical pair from the cage causes H-abstraction from the ether forming the α-ether radical2. The letter combines to3. The ratio of1 to3 depends on temperature.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 28 (1972), S. 385-386 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Mit Hilfe einer Ultramikrotechnik konnte an isolierten gewundenen und geraden Hauptstücken der Rattenniere gezeigt werden, dass die alkalische Phosphatase nicht nur in der Bürstensaum-, sondern auch in der basalen Labyrinthmembran lokalisiert ist. Das Enzym ist infolgedessen kein geeignetes Leit-Enzym zur Erkennung des Bürstensaumes aus einem Plasmamembrangemisch. Es wird vorgeschlagen, das Fehlen der Na K ATPase-Aktivität als Mass für die Reinheit der Bürstensaumfraktion zu benutzen.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Human genetics 〈Berlin〉 23 (1974), S. 163-172 
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Es wird eine Familie mit zwei Kindern beschrieben, einem Jungen und einem Mädchen, bei denen eine Trisomie des kurzen Armes des Chromosoms Nr. 10 vorliegt. Die Mutter und die Großmutter sind Träger der reziproken Translokation 46,XX,t(7;10) (p22; p11). Beide Kinder erhielten durch meiotische Segregation das gleiche Translokationschromosom Nr. 7, das fast den gesamten kurzen Arm des Chromosoms Nr. 10 aufweist. Die Kinder mit der 10p—Trisomie zeigen ein klinisches Bild, das gekennzeichnet ist durch eine schwere geistige und psychomotorische Retardierung, einen dysmorphen Schädel, eine besondere Form des Gesichtes und multiple Mißbildungen der Extremitäten.
    Notes: Summary A family is described with two children, a boy and a girl, having a trisomy of the short arm of chromosome No. 10. The mother and the grandmother are carriers of the reciprocal translocation 46,XX,t(7;10) (p22; p11). Both children received through meiotic segregation the same translocation chromosome No. 7 which carries almost the total short arm of No. 10. The 10p—trisomic children show a clinical picture characterized by severe mental and psychomotoric retardation, dysmorphic skull, peculiarly shaped face, and multiple malformations of the extremities.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Lung 150 (1974), S. 211-216 
    ISSN: 1432-1750
    Keywords: Mucus Flow ; Mucociliary Function ; Cigarette Smoke
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Ratten und Hamster wurden 23–443mal Zigarettenrauch exponiert, wobei bei jeder Exposition 10–12 Zigaretten abgebrannt wurden. Die exponierten Tiere zeigten gegenüber der Kontrollgruppe eine vermehrte tracheobronchiale Sekretion. Ferner fanden sich multiple Areale mit abnormem mucociliären Mechanismus. Die Ausdehnung und Inzidenz dieser Areale waren um so größer, je länger die Tiere exponiert worden waren. Auch die Frequenz der Flimmerbewegung und die Geschwindigkeit des Schleimtransportes zeigten bei den länger exponierten Tieren signifikante Veränderungen.
    Notes: Abstract Rats and golden hamsters were exposed to cigarette smoke for a prolonged period of time. Mucus production was highly pronounced in the exposed animals. Multiple areas of mucociliary abnormalities were found in the tracheo-bronchial epithelium of these animals. The frequency of the ciliary beat and the velocity of the mucus transport were also altered after prolonged exposure to cigarette smoke.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 50 (1972), S. 797-798 
    ISSN: 1432-1440
    Keywords: Folic acid ; acute renal failure ; macula densa ; peripheral plasma renin activity ; hemorrhage ; Folsäure ; akutes Nierenversagen ; Macula densa ; periphere Plasma-Reninaktivität ; Hämorrhagie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die periphere Plasma-Reninaktivität war bei Ratten mit akutem Nierenversagen, das durch eine einmalige i.v. Injektion von Folsäure (250 mg/kg KG, gelöst in 0,3 M NaHCO3) erzeugt worden war, während der ersten 6 Std normal und nach 24 Std und 4 Tagen harabgesetzt. Hämorrhagie verursachte jedoch am 4. Tag nach Folsäuregabe einen starken Anstieg der Plasma-Reninaktivität. Für eine Beteiligung des Renins an der Entwicklung des folsäurebedingten funktionellen und morphologischen Nierenschadens ergab sich kein Anhalt.
    Notes: Summary Peripheral plasma renin activity in acute renal failure induced in rats by a single i.v. injection of folic acid (250 mg/kg b. w., dissolved in 0.3 M NaHCO3) remained normal during the first 6 hours and fell to low levels 24 hours and 4 days following the injection. Bleeding, however, induced a considerable increase of plasma renin activity on the 4th day after folate injection. There was no evidence of a participation of renin in the development of the functional and morphological renal disturbances produced by folic acid.
    Type of Medium: Electronic Resource
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