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  • 1
    Electronic Resource
    Electronic Resource
    Terpenes. IV.1 The Acid-induced Cyclization of Dihydro-α-ionone (1956)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 78 (1956), S. 2622-2625 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01592a081
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  • 2
    Electronic Resource
    Electronic Resource
    Thymus stimulation and cancer prophylaxis byViscum proteins (1970)
    Springer
    Cellular and molecular life sciences 26 (1970), S. 523-525 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Die cancerostatischen Viscum-Proteine induzieren im Tierversuch mit geringsten Dosen eine Proliferation des Thymus und verhindern prophylaktisch das Angehen von Tumoren. Höhere Dosen zerstören dagegen den Immunapparat durch Überbeanspruchung und die Tumorhemmung bleibt aus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01898487
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  • 3
    Electronic Resource
    Electronic Resource
    Emotionally evoked changes in cerebral hemodynamics measured by transcranial Doppler sonography (1999)
    Springer
    Journal of neurology 246 (1999), S. 127-133 
    Details
    ISSN: 1432-1459
    Keywords: Key words Emotions ; Evoked ; cerebral blood flow ; Transcranial ; Doppler sonography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The cerebral representation of emotions has previously been investigated by the study of patients with local brain damage, experiments with selective stimulation of only one hemisphere, and more recently by imaging techniques such as positron-emission tomography or magnetic resonance imaging measuring local cerebral blood flow. We investigated the mean flow velocity (FVmean) in the middle cerebral artery (MCA) by transcranial Doppler sonography during emotional stimulation with video scenes in 24 healthy test persons. The videos consisted of an erotic scene and a violent scene shown in contrast to a calming scene. Blood pressure, heart rate, and breathing frequency were monitored continuously by noninvasive measurement. FVmean increased during the erotic scene to 108.5 ± 11.9% (P 〈 0.05) of the baseline value in the right MCA and to 109.0 ± 10.6% (n.s.) in the left MCA. During the violent scene FVmean reached 109.0 ± 8.7% (P 〈 0.05) on the right side and 108.1 ± 13.0% (n.s.) on the left side. The FVmean time course showed a close relationship to the video sequence. During scenes involving great tension FVmean showed a plateaulike state and peaked during sudden actions. Blood pressure, heart rate, and respiratory rate showed no significant changes. However, we observed a tendency towards lower heart rates (lowest value 94.5 ± 13.6%) during the erotic scene and two peaks (103.2 ± 13.3%, 104.8 ± 16.8%) coinciding with sudden violent actions. The significant increase in FVmean in the right MCA supports the theory of a right hemisphere dominance for the processing of emotions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004150050319
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  • 4
    Electronic Resource
    Electronic Resource
    C-banding and non-homologous associations in Gryllus argentinus (1974)
    Springer
    Chromosoma 48 (1974), S. 367-390 
    Details
    ISSN: 1432-0886
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A comparative study of C-banded mitotic and meiotic chromosomes of Gryllus argentinus (Gryllidae) is reported. Improved cytological procedures were followed to establish karyotypes and to detect C-segments. Twenty-eight autosomes plus a sexual system XX, XO were found. Terminal C-heterochromatin in both arms and paracentric segments were detected in most of the chromosomes of the complement. Microdensitometric tracings confirmed the distribution of C-banded segments. Manifold connections through condensed terminal chromomeres were observed at pachytene occurring between two or more bivalents during meiosis. These heterologous associations involved the whole karyotype. End-to-end pachytene associations reacted intensely to the C-procedure. C-segments detected at diakinesis allowed the measurement of the centromere indices of bivalents which resulted in a more precise identification of given chromosome pairs. The relationship of the presence of terminal heterochromatin in mitotic chromosomes, the end-to-end associations through C-segments, the attachment of pachytene filaments to the nuclear membrane and their molecular implications is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00290994
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  • 5
    Electronic Resource
    Electronic Resource
    Pattern of elevation of urine catecholamines in intracerebral haemorrhage (1995)
    Springer
    Acta neurochirurgica 132 (1995), S. 42-47 
    Details
    ISSN: 0942-0940
    Keywords: Intracerebral haemorrhage ; intracranial pressure ; metanephrine ; normetanephrine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Autonomic nervous system dysfunction is a common complication of severe intracranial disease. The aim of this study was to reveal the autonomic changes in patients suffering from acute intracerebral haemorrhage (ICH). 25 patients with spontaneous ICH within 24 hours of onset of symptoms were included. All patients were treated with standardised medical management and the meta- and normetanephrines were detected by high performance liquid chromatography (HPLC) in 24-hour urine every day. The mean level of normetanephrine (709±579 μg/day) and metanephrine (244±161 mg/day) were significantly elevated in comparison with a control group, p⩽0,01. The norepinephrine elevation was of greater diagnostic and prognostic importance. Maximum urinary catecholamine metabolite levels occurred between day 3 to 10 after the bleeding. Normetanephrines correlated with the prognosis and the complications of ICH: intraventricular involvement resulted in significantly elevated normetanephrine levels (896±520 μg/day versus 311±78 μg/day) p⩽0,01. Patients with a great volume of haematoma developed severe autonomic dysregulation (normetanephrines 1114±493 μg/day), whereas patients with smaller haematoma did not (339±125 μg/day) p⩽0,0001; patients with bad outcome (1014±620 mg/day) had higher levels of normetanephrines than those with a good prognosis (322±110 μg/day) p⩽0,001. A close relationship to elevated intracranial pressure was established. This study demonstrated the feasibility of detecting autonomic nervous system dysfunction in neurological intensive care patients by means of examination of the metabolites of the catecholamines in the urine. The pattern of elevation in ICH and the relation to the clinical situation is presented. Norepinephrine offers the chance of simple and feasible monitoring of autonomic dysfunction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01404846
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  • 6
    Electronic Resource
    Electronic Resource
    Volatile Carbonyl Constituents of Dairy Butter (1963)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 28 (1963), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Volatile constituents of fresh butter were separated from fat and other components of high molecular weight by vacuum steam distillation. The carbonyl compounds in the aqueous distillate were converted to their 2, 4-dinitro-phenylhydrazones. Separation of these by column and paper chromatography gave the derivatives of formaldehyde, acetaldehyde, isobutyraldehyde, isovaler-aldehyde, n-hexanal, n-nonanal, phenylacetaldehyde, acetone, 2-heptanone, 2-nonanone, diacetyl and (-)-acetoin, all identified by comparison with authentic samples. Possible biosyntheses of these flavor constituents are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1963.tb00242.x
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  • 7
    Electronic Resource
    Electronic Resource
    Optical properties of nickel in the visible and near infra-red
    Amsterdam : Elsevier
    Solid State Communications 8 (1970), S. 1207-1210 
    Details
    ISSN: 0038-1098
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0038-1098(70)90361-3
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  • 8
    Electronic Resource
    Electronic Resource
    Isoorientin 3'-O-sophoroside and 3'-O-neohesperidoside from the moss Plagiomnium affine
    Amsterdam : Elsevier
    Phytochemistry 25 (1986), S. 669-671 
    Details
    ISSN: 0031-9422
    Keywords: Mniaceae ; Musci ; Plagiomnium affine ; flavone-C-glycosides ; isoorientin-O-diglycosides. ; moss
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0031-9422(86)88021-9
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  • 9
    Electronic Resource
    Electronic Resource
    Infra-red resonance in nickel: A direct determination of the exchange energy?
    Amsterdam : Elsevier
    Solid State Communications 11 (1972), S. 437-441 
    Details
    ISSN: 0038-1098
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0038-1098(72)90026-9
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  • 10
    Electronic Resource
    Electronic Resource
    Lack of association of SPINK5 polymorphisms with nonsyndromic atopic dermatitis in the population of Northern Germany (2005)
    Oxford, UK : Blackwell Science Ltd
    British journal of dermatology 152 (2005), S. 0 
    Details
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2133.2005.06602.x
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