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  • 1970-1974  (12)
  • 1974  (12)
Source
Material
Years
  • 1970-1974  (12)
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Structure of the Cesium Salt of an Ethylene-Methacrylic Acid Copolymer from Its Radial Distribution Function (1974)
    s.l. : American Chemical Society
    Macromolecules 7 (1974), S. 95-100 
    Details
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ma60037a019
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Waves in the Solar Atmosphere (1974)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Astronomy and Astrophysics 12 (1974), S. 407-435 
    Details
    ISSN: 0066-4146
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.aa.12.090174.002203
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Meningeal branch of the posterior cerebral artery (1974)
    Springer
    Neuroradiology 7 (1974), S. 129-131 
    Details
    ISSN: 1432-1920
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les auteurs ont identifié une branche méningée de l'artère cérébrale postérieure. Cette artère inédite vascularise la face médiale de la tente du cervelet et le segment postérieur de la faux cérébrale.
    Abstract: Zusammenfassung Bei 3 Patienten wurde ein meningealer Ast der A. cerebri posterior beobachtet. Diese Arterie, die früher nicht beschrieben wurde, versorgt den medialen Anteil des Tentoriums und das posteriore Segment der Falx cerebri.
    Notes: Summary A meningeal branch of the posterior cerebral artery was visualized in three patients. This artery, not previously identified by angiography, supplies the medial aspect of the tentorium and the posterior segment of the flax cerebri.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00344317
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Radiographic anatomy of normal cerebral deep medullary veins: Criteria for distinguishing them from their abnormal counterparts (1974)
    Springer
    Neuroradiology 7 (1974), S. 75-84 
    Details
    ISSN: 1432-1920
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La visualisation angiographique per se des veines cérébrales profondes péri-ventriculaires n'est pas forcément anormale. Leur visualisation spontanée dépend de la sélectivité de l'injection, de la qualité de l'image radiographique et de la quantité de produit de contraste injectée. Les veines cérébrales profondes péri-ventriculaires normales furent observées sur la phase veineuse tardive dans 2/3 des angiographies carotidiennes internes sélectives normales; leurs situations étaient le plus souvent adjacentes à l'atrium et à la partie postérieure du corps du ventricule latéral. Les veines cérébrales profondes périventriculaires normales et anormales peuvent être distinguées par le temps d'apparition, le calibre, la longueur et la distribution régionale.
    Abstract: Zusammenfassung Die angiographische Darstellung der normalen tiefen Mark-Venen ist nicht als unbedingt pathologisch anzusehen. Ihre Darstellung unter normalen Bedingungen ist von der selektiven Injektion, der Qualität der Röntgenbilder und der Quantität des injizierten Kontrastmittels abhängig. Diese normalen Venen stellen sich in der späten venösen Phase bei zwei Drittel der normalen Carotis-interna-Angiographien dar. Sie sind an den Seitenventrikeln lokalisiert. Die normalen können von pathologischen Venen aufgrund der Zeit der Darsteliung, des Kalibers und der regionalen Zuordnung unterschieden werden.
    Notes: Summary The angiographic demonstration per se of cerebral deep medullary veins does not necessarily indicate abnormality. Their visualization, under normal conditions, depends on the selectivity of injection, the quality of radiographic imaging, and the quantity of contrast material injected. Normal deep medullary veins were recognized in the late venous phase of two-thirds of normal selective internal carotid angiographies; their location most often was adjacent to the atrium and posterior body of the lateral ventricle. Normal and abnormal deep medullary veins can be differentiated in terms of appearance-time, caliber, length and regional distribution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00341874
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Genome DNA content and chromosome organization in Gossypium (1974)
    Springer
    Chromosoma 47 (1974), S. 309-326 
    Details
    ISSN: 1432-0886
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The ascending genome size in Gossypium is assumed to be D, A, B, E and F, and C. Feulgen cytophotometry revealed that mean value of DNA content for each genome was D= 10.95, B = 13.88, F = 14.31, E = 18.24, A = 18.66, and C = 20.30, and that there is a close relationship of genomic chromosome size and DNA content. Evidence suggests that the five genomes with large chromosomes arose from a D genome-like progenetor by large scale, saltatory replication of repetitive DNA distributed uniformly through the ancestral genome. Corresponding adjustment in recombination units did not accompany the two-fold divergence in DNA value of the two homoeologous A and D genomes in the allotetraploid species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00328864
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Properties of small neural networks (1974)
    Springer
    Biological cybernetics 14 (1974), S. 223-230 
    Details
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract Networks containing neuronal models of the type considered in the previous paper can be described by a set of first order differential equations. Steady-state solutions and the stability of these solutions to small perturbations can be obtained. Networks of physiological interest which give rise to second, third and fourth order linear equations are analysed in detail. Conditions are derived under which such networks can be condensed into a single neuron of similar order. Simple mechanisms for memory storage, for the generation of oscillatory activity and for decision making in neural systems are suggested.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00274808
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  • 7
    Electronic Resource
    Electronic Resource
    Improved neuronal models for studying neural networks (1974)
    Springer
    Biological cybernetics 15 (1974), S. 1-9 
    Details
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract Previous neuronal models used for the study of neural networks are considered. Equations are developed for a model which includes: 1) a normalized range of firing rates with decreased sensitivity at large excitatory or large inhibitory input levels, 2) a single rate constant for the increase in firing rate following step changes in the input, 3) one or more rate constants, as required to fit experimental data for the adaptation of firing rates to maintained inputs. Computed responses compare well with the types of neuronal responses observed experimentally. Depending on the parameters, overdamped increases and decreases, damped oscillatory or maintained oscillatory changes in firing rate are observed to step changes in the input. The integrodifferential equations describing the neuronal models can be represented by a set of first-order differential equations. Steady-state solutions for these equations can be obtained for constant inputs, as well as the stability of the solutions to small perturbations. The linear frequency response function is derived for sufficiently small time-varying inputs. The linear responses are also compared with the computed solutions for larger non-linear responses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00270755
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Isolation of candida tropicalis from an orbital infection as a complication of maxillar osteomyelitis (1974)
    Springer
    Infection 2 (1974), S. 111-112 
    Details
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Kasuistik handelt von einem 3 Monate alten Säugling, der als Komplikation einer Oberkiefer-Osteomyelitis an einer Orbital-Infektion erkrankt war. Als ätiologisch verantwortlicher Keim konnte Candida tropicalis aus der Inzision und aus der Drainage isoliert werden. Blut- und Liquorkulturen waren steril. Als Behandlung wurden chirurgische Maßnahmen ergriffen (Inzision und Drainage der Maxilla).
    Notes: Summary The following is a report of a three months old infant, suffering from an orbital infection as complication of maxillar osteomyelitis. The yeast-like fungus Candida tropicalis was isolated from material taken after incision and drainage of maxilla. Blood and cerebrospinal fluid cultures were sterile. Surgical treatment was undertaken (incision and drainage of the maxilla).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01642030
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  • 9
    Electronic Resource
    Electronic Resource
    Gram-negative bacteria isolated from external eye infections (1974)
    Springer
    Infection 2 (1974), S. 162-165 
    Details
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die bei den Infektionen des Auges isolierten Bakterien gehören verschiedenen Arten an und zeigen ein vielfältiges klinisches Bild. Pathogene Bakterien wie Pseudomonas (15 Fälle) und Proteus-Spezies (11 Fälle) wurden bei eitrigen Konjunktivitiden und Lidinfektionen gefunden. Diese Keime waren gegen die üblichen Antibiotika resistent, aber mit einer Gentamicin-Behandlung gut beeinflußbar. Die opportunistisch-pathogenen Keime Herellea vaginicola (2 Fälle), Enterobacter agglomerans (11 Fälle), Comamonas terrigena (2 Fälle), Serratia macrescens (2 Fälle), E. coli (2 Fälle), Citrobacter freundii (1 Fall), Citrobacter diversus (1 Fall), Klebsiella pneumoniae (8 Fälle), Aeromonas hydrophilia (2 Fälle) und Enterobacter aerogenes (8 Fälle) wurden bei einer Keratitis, einer Konjunktivitis, einer Keratokonjunktivitis und einer Keratoiritis isoliert. Die Bakterien waren gegenüber den üblichen Chemotherapeutika sensibel, und bei allen war Chloramphenicol wirksam. Enterobacter aerogenes wurde beinahe immer in Verbindung mit anderen Mikroorganismen gefunden, wie z. B. Herpes simplex-Virus oder bei Candida-Arten.
    Notes: Summary In this study the bacteria isolated from eye infections belonged to different groups and showed a varied clinical picture. The pathogenic bacteria, Pseudomonas (15 cases) and Proteus sp. (11 cases), were associated with purulent infections of the conjunctiva and eyelids. These bacteria were resistant to the usual antibiotics, but responded to treatment with gentamicin. The potential opportunistic pathogens, Herellea vaginicola (2 cases), Enterobacter agglomerans (11 cases), Comamonas terrigena (2 cases), Serratia marcescens (2 cases), Escherichia coli (2 cases), Citrobacter freundii (1 case), Citrobacter diversus (1 case), Klebsiella pneumoniae (8 cases), Aeromonas hydrophilia (2 cases), and Enterobacter aerogenes (8 cases), were isolated from keratitis, conjunctivitis, keratoconjunctivitis and keratoiritis. The bacteria were sensitive to the usual antibiotic substances, and all of them responded to chloramphenicol. The Enterobacter aerogenes was almost always found in association with other microorganisms, such as Herpes simplex virus and Candida sp.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01642238
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  • 10
    Electronic Resource
    Electronic Resource
    Yeasts associated with ocular infections (1974)
    Springer
    Mycopathologia 54 (1974), S. 31-34 
    Details
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Discussion of 16 yeast species isolated from patients treated in an Ophthalmological Department and the association with ocular infections.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02055970
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