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  • 1990-1994  (8)
  • 1970-1974  (12)
  • 1960-1964
  • 1992  (8)
  • 1974  (12)
  • 1
    Electronic Resource
    Electronic Resource
    Zinc diffusion in InP using diethylzinc and phosphine (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 71 (1992), S. 3234-3237 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A low pressure open tube system with diethylzinc (DEZn) and phosphine (PH3) as precursors was used to study the Zn-diffusion in InP. This system offers a flexible and precise control of the diffusion parameters. We investigated the effect of the DEZn and PH3 partial pressures and of the diffusion temperature and time on the hole and Zn concentration profiles. Annealing the samples leads to an increased hole concentration due to out-diffusion of interstitial Zn donors. The Zn and hole concentration profiles were obtained by secondary-ion mass spectroscopy and C–V etch profiling showing maximum hole concentrations between 1017 cm−3 and 4×1018 cm−3 for diffusion depths from 0.3 to 2 μm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.350969
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  • 2
    Electronic Resource
    Electronic Resource
    Nosocomial sinusitis in ventilated patients (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 47 (1992), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A total of 68 postoperative patients whose lungs were ventilated for more than 4 days were studied prospectively during a one-year study period to investigate the effect of the mode of intubation on the paranasal sinuses. After an initial X ray of the skull showing no pathological findings, patients were assigned randomly to one of the study groups; the lungs of patients in group A were ventilated via an orotracheal tube (n = 32), and patients in group B via a nasotracheal tube (n = 36). X ray examinations of the sinuses were performed at regular intervals. Diagnosis of sinusitis was confirmed by transantral needle puncture and culture of fluids obtained. Antibiotic regimens were altered according to laboratory testing. Two patients in group A developed signs of sinusitis in comparison to 15 patients in group B (p 〈 0.01). However, there were significantly more airway complications in the orotracheal group, particularly during the period of weaning from ventilation. We conclude that orotracheal intubation should be preferred as the routine route of intubation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1992.tb02177.x
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  • 3
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    Unknown
    Schlerath, B.: Awesta-Wörterbuch. Vorarbeiten II (Book Review) (1974)
    Berlin : Periodicals Archive Online (PAO)
    Orientalistische Literaturzeitung. 69:3/4 (1974:März/Apr.) 180 
    Details
    ISSN: 0030-5383
    Topics: Linguistics and Literary Studies , Ethnic Sciences , History
    Notes: Besprechungen
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4148-1974-069-03-000038
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  • 4
    Electronic Resource
    Electronic Resource
    138. Biliodigestive Fisteln (1974)
    Springer
    Langenbeck's archives of surgery 337 (1974), S. 817-818 
    Details
    ISSN: 1435-2451
    Keywords: Biliodigestive Fistulae ; Biliodigestive Fisteln
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In den letzten 10 Jahren wurden 65 Patienten wegen einer biliodigestiven Fistel operiert. In den meisten Fällen bestand eine Verbindung mit dem Duodenum. Die häufigste Ursache war eine Cholelithiasis. In über der Hälfte der Fälle mußte neben einer Cholecystektomie der Choledochus wegen einer Choledocholithiasis oder krankhaften Papillenveränderungen revidiert werden. Als Therapie der Wahl ist eine Sanierung der erkrankten Gallenblase und der Gallenwege mit Verschluß der Fistelöffnung im Magen-Darm-Trakt anzustreben, wobei der intraoperativen Cholangiographie und Manometrie eine besondere Bedeutung zukommt.
    Notes: Summary In the last ten years 65 patients have been operated on for biliodigestive fistulae. In most cases connections to the duodenum had been detected. The most frequent cause was cholelithiasis. Choledocholithiasis or a disease of the papilla made revision of the choledochus necessary as well as cholecystectomy in more than half these cases. The only true therapy is cholecystectomy and revision of the choledochus with closing of the fistula opening in the stomach and the gut. Intraoperative cholangiography and manometry are important.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01278770
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  • 5
    Electronic Resource
    Electronic Resource
    Das Perchloration als koordinierendes Anion in kristallisierten Co(II)- und Ni(II)-Solvaten (1974)
    Springer
    Monatshefte für Chemie 105 (1974), S. 653-665 
    Details
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Solvates of Ni(II) and Co(II) are prepared from perchlorate solutions in acetic anhydride, methyl acetate and acetone. Analytical, spectrophotometric and IR-spectrographic results indicate in several cases the coordination of the perchlorate group in the inner coordination sphere.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00912963
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  • 6
    Electronic Resource
    Electronic Resource
    Calcium-dotierte AgCl-Kristalle als Teilchenspur-Detektoren (1974)
    Springer
    Naturwissenschaften 61 (1974), S. 402-403 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00622624
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  • 7
    Electronic Resource
    Electronic Resource
    Retrospective approach to explain growth retardation and urolithiasis in a child with long-term nutritional acid loading (1992)
    Springer
    European journal of nutrition 31 (1992), S. 121-129 
    Details
    ISSN: 1436-6215
    Keywords: Children ; phenylketonuria ; lowphenylalanine preparations ; acidicdiet ; maximumrenal netacid excretion ; urolithiasis ; Kleinkind ; Phenylketonurie ; phenylalaninarme Diätprodukte ; alimentäre Säurelast ; maximale renale Säureausscheidung ; Harnsteine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Medicine
    Description / Table of Contents: Zusammenfassung Ein Säugling mit Phenylketonurie erhielt unbeabsichtigt für insgesamt 29 Monate eine phenylalaninarme Diät mit hoher alimentärer Säurelast. Eine vorübergehende Wachstumsretardierung und die Entwicklung von Harnsteinen dürften direkte Folgen, eine Karies im Alter von 6 Jahren möglicherweise eine langfristige Konsequenz der chronischen Säurebelastung gewesen sein. Das Beispiel dieser Krankengeschichte zeigt, daß eine chronische alimentäre Säurebelastung ernsthafte klinische Folgen haben kann.
    Notes: Summary An infant with phenylketonuria unintentionally received a highly acidic low phenylalanine diet for 29 months. Temporary growth retardation and urolithiasis were observed, probably as direct effects of chronic acid loading. Caries at the age of 6 years may be a late consequence. This case report shows that chronic dietary acid load may cause serious side effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01623070
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  • 8
    Electronic Resource
    Electronic Resource
    Über das primär multiple maligne Melanom der Haut (1974)
    Springer
    Archives of dermatological research 248 (1974), S. 391-397 
    Details
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Innerhalb von 25 Monaten wurden 76 Patienten mit malignen Melanomen operativ behandelt. Davon hatten 3 Kranke (2 Frauen, 1 Mann) jeweils 2 primäre maligne Melanome der Haut, die alle histologischen Kriterien für die Annahme von in loco entstandenen Geschwülsten erfüllten. Bei allen Zweit-Primärtumoren handelte es sich histologisch um Superficial Spreading Melanomas, was die Annahme einer Sonderstellung für diese Geschwulstform nahelegt.
    Notes: Summary Within a period of 25 months, 76 patients with malignant melanomas were treated operatively. Three of them (2 women and 1 man) suffered from two primary malignant melanomas of the skin, which showed all the histological criteria of tumors growing in loco. Each of the secondarily excised primary tumors turned out to be a Superficial Spreading Melanoma. this fact seems to emphasize the special status of this kind of tumor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00595558
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  • 9
    Electronic Resource
    Electronic Resource
    Effects of angiographic contrast media on regional cerebral blood flow and haemodynamics in man (1974)
    Springer
    Neuroradiology 7 (1974), S. 95-103 
    Details
    ISSN: 1432-1920
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Chez 33 sujets humains avec un système cireulatoire régional normal, les auteurs ont étudié les répercussions de l'injection intra-carotidienne du sodium méthylglucamine diatrizoate (Angiografine, Urografine 76%) sur le flux sanguin cérébral régional au cours de l'angiographie cérébrale. Dans le cas de l'Angiografine, on notait une augmentation du flux sanguin cérébral régional de 15.7% et 7.8% respectivement 1 et 3 min après l'injection intra-carotidienne. Avec l'Urografine 76%, l'augmentation du flux sanguin cérébral régional était de 23.0%. Les mesures pratiquées 5 et 8 min après la fin de l'injection ne montraient pas de différence sensible entre les deux produits de contraste. Chez ces malades il n'y a pas eu de modifications hémodynamiques (pression sanguine, pouls) sous l'influence du sodium méthylglucamine diatrizoate (Angiografine, Urografine 76%) au cours de l'angiographie carotidienne.
    Abstract: Zusammenfassung Bei 33 kreislaufgesunden Patienten wurden die Veränderungen der regionalen Hirndurchblutung nach Injektion von Angiografin bzw. Urografin 76% in die A. carotis interna untersucht. Dabei fand sich nach Angiografin bei Beginn der Durchblutungs-messung im zeitlichen Abstand von 1 bzw. 3 Min. nach erfolgter Injektion des Kontrastmittels eine Zunahme des rCBF um 15,7% bzw. 7,8%. Urografin rief bei Meßbeginn im zeitlichen Abstand von 3 Min. nach erfolgter Injektion des Kontrastmittels einen rCBF-Anstieg von 23% hervor. Bei Meßbeginn im zeitlichen Abstand von 5 und 8 Min. nach der Injektion war eine signifikante Differenz von der Ausgangslage nicht mehr erkennbar. Die Verfasser konnten keine Veränderungen der Kreislaufparameter (Blutdruck, Pulsfrequenz) während der Angiographie feststellen.
    Notes: Summary In 33 human subjects with a sound circulatory system regional cerebral blood flow changes, following intracarotid injection of sodium methylglucamine diatrizoate (Angiografin, Urografin 76%) during cerebral angiography, were investigated. Angiografin®, at the start of recording 1 and 3 min after intracarotid injection, caused an increase of rCBF of 15.7% and 7.8% respectively. Urografin®, 3 min after completion of intracarotid injection, brought about an increase of rCBF of 23.0%. Under the action of both X-ray radiopaque materials at the start of rCBF-measurement, 5 and 8 min after completed intracarotid injection, there no longer was a significant difference from the resting values. Changes in haemodynamics (blood pressure, pulse rate) during carotid cerebral angiography with sodium-methylglucamine diatrizoate (Angiografin, Urografin 76%) were not observed in this study.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00341877
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  • 10
    Electronic Resource
    Electronic Resource
    Effect of aconitine on the sodium permeability of the node of ranvier (1974)
    Springer
    Pflügers Archiv 349 (1974), S. 133-148 
    Details
    ISSN: 1432-2013
    Keywords: Node of Ranvier ; Sodium Permeability ; Aconitine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect of aconitine (10−5–10−6 g/ml) on membrane potentials and membrane currents of myelinated nerve fibres of Xenopus laevis was investigated. The following observations were made: a) Current clamp conditions: Slow depolarization (10–15 mV), decrease of amplitude and maximum rate of rise of action potential, finally inexcitability. With inward current pulses ‘hyperpolarizing responses’ could be elicited at membrane potentials more negative than the resting potential (E r ). Neither spontaneous activity nor repetitive responses to electrical stimuli were observed. No effects of aconitine were found in Na-free solutions or in the presence of tetrodotoxin. b) Voltage clamp conditions: Development of steady inward current at normal resting potential due to formation of a non-inactivating sodium permeability; heavily poisoned nodes therefore exhibit an N-shaped steady-state current voltage relation with negative slope at membrane potentials more negative thanE r . These non-inactivating sodium channels open more slowly than normal sodium channels, and can only be closed by hyperpolarizing the membrane by about 50 mV. The majority of sodium channels have almost normalτ m; theirm ∞ andh ∞-V relations are shifted by 10–15 mV towardsE r . It is concluded that these changes of the sodium permeability account for the changes of electrical activity observed after treatment with aconitine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00586624
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