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  • 1
    Electronic Resource
    Electronic Resource
    Stages of recovery from central norepinephrine lesions in enriched and impoverished environments: A behavioral and biochemical study (1978)
    Springer
    Experimental brain research 31 (1978), S. 117-130 
    Details
    ISSN: 1432-1106
    Keywords: Central norepinephrine lesions ; Enriched environments ; Functional recovery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Adult rats were injected intraventricularly with 6-OHDA and allowed to recover for varying time periods in either an enriched colony environment or in isolation cages. When tested behaviorally in a novel environment, isolated animals showed a cyclical recovery pattern, with behavioral changes at 14 days after lesioning which were different from those seen at 2 and 45 days after lesioning. In contrast, animals housed in a colony environment showed progressive improvement and better recovery than isolates. Biochemical studies of uptake of H3NE and histofluorescence indicated that colony housed animals had enrichment effects (higher cortical NE uptake), but they were also more susceptible to 6-OHDA and did not recover well from the lesions. Isolated animals showed somewhat better recovery of NE uptake following 6-OHDA injections, especially in cortex. Because behavioral recovery from 6-OHDA was dissociated from biochemical indicators of recovery in NE circuitry, these results imply that brain systems other than NE were primarily responsible for the enhanced behavioral recovery which occurs in enriched environments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00235809
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  • 2
    Electronic Resource
    Electronic Resource
    Surgical management of tumours of the pineal region (1976)
    Springer
    Acta neurochirurgica 34 (1976), S. 159-171 
    Details
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Tumours of the pineal region and posterior part of the third ventricle are rare in European and American series (0.5 to 1% of space-occupying lesions). Personal experience is usually limited and thus cooperative studies or critical reviews of reported cases are necessary to establish therapeutic criteria. We have studied 50 cases from our own material of more than 5,000 brain tumours and intracranial space-occupying lesions operated on during the last 30 years. Another 6 verified cases from Dr. F. Isamat, and more than 200 verified tumours from the literature are added. Histological distribution shows that 24% of the tumours in this locality are benign. The different surgical techniques for reaching the pineal region are reviewed. The results of palliative operations, or partial removals together with radiotherapy, and total removals are presented in 200 verified cases (Table 1), as well as the results obtained by the different surgical approaches (Table 2). Finally, some conclusions are reached regarding the surgical management of these tumours. More than two thirds are radiosensitive, and in about 50 to 70% good results may be obtained with palliative operations and radiotherapy. The remainder of the pineal tumours (about 20%) should be treated by a direct surgical approach. Recent technical improvements and the use of the surgical microscope have reduced the mortality of pineal surgery and allow verification of the histological nature of the tumour in order to establish more rational treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01405870
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Ethnopharmacology of Sacred Psychoactive Plants Used by the Indians of Mexico (1977)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Pharmacology 17 (1977), S. 647-675 
    Details
    ISSN: 0362-1642
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.pa.17.040177.003243
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  • 4
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    Unknown
    TORRES MARTÍN, Ramón: "Blas de Ledesma y el bodegón español", Madrid, 1978 (Book Review) (1978)
    Madrid : Periodicals Archive Online (PAO)
    Archivo español de arte. 51:204 (1978:oct./dic.) 449 
    Details
    ISSN: 0004-0428
    Topics: Art History
    Notes: BIBLIOGRAFÍA
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:5377-1978-051-04-000014
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  • 5
    Electronic Resource
    Electronic Resource
    A generalized stefan condition (1979)
    Springer
    Zeitschrift für angewandte Mathematik und Physik 30 (1979), S. 749-755 
    Details
    ISSN: 1420-9039
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Description / Table of Contents: Zussamenfassung In dieser Arbeit wenden wir die Theorie der Oberflächen-Thermodynamik auf die Bestimmung der Sprungbedingung für den Wärmefluss an einer Schmelzfläche an. Wir trennen die Oberflächenspannungs-Effekte von den Oberflächenenergie-Effekten und beschreiben Beziehungen zwischen den beiden, die eine Vergrösserung oder Verkleinerung der Oberflächenkrümmung bedingen können.
    Notes: Summary In this paper we apply the theory of surface thermodynamics to find the jump condition on heat flux across a melting-surface. We distinguish between the effects of surface tension and of surface energy and describe relations between the two which may ensure enhancement or diminution of the curvature of the surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01590684
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