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  • 1
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 156 (1972), S. 321-324 
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 145 (1971), S. 163-168 
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Vinylformate has been polymerized by free radicals in bulk, acetone, chloroform, and dimethylformamide at temperatures between +60 and -20°C. The differences (ΔHi≠ - ΔHs≠) of the activation enthalpies and (ΔSi≠ - ΔSs≠) of activation entropies were calculated from the temperature dependence of the ratio Xi/Xs of the mole fractions of isotactic and syndiotactic dyads, resp., formed in the different solvents. A compensation effect exists between (ΔHi≠ - ΔHs≠) and (ΔSi≠ - ΔSs≠) resp. The compensation temperature for the stereocontrol was determined as T0 = 344°K. This numerical value points towards a stereocontrol by hydrogen bonds during the transition state.
    Notes: Vinylformiat wurde in Substanz, Aceton, Chloroform bzw. Dimethylformamid bei Temperaturen zwischen +60 und -20°C radikalisch polymerisiert. Aus der Temperaturabhängigkeit des Verhältnisses Xi/Xs an isotaktischen und syndiotaktischen Diaden wurde die Differenz der Aktivierungsenthalpien (ΔHi≠ - ΔHs≠) bzw. -entropien (ΔSi≠ - ΔSs≠) für die Polymerisation in den einzelnen Lösungsmitteln berechnet. Zwischen (ΔHi≠ - ΔHs≠) und (ΔSi≠ - ΔSs≠) besteht ein Kompensationseffekt. Aus der Kompensationstemperatur T0 = 344°K der Stereokontrolle wird geschlossen, daß die Stereokontrolle mindestens teilweise durch Wasserstoffbrückenbindungen im übergangszustand bedingt ist.
    Additional Material: 1 Ill.
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  • 3
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 12 (1974), S. 129-130 
    ISSN: 0360-6384
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
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  • 4
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-1: Polymer Chemistry 8 (1970), S. 2713-2716 
    ISSN: 0449-296X
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A new technique to determine the reactivity ratios for monomers is described. It is based on vapor-phase chromatography and can be used for any volatile monomer. A new simplified equation was deduced which permits the direct use of the retention times to obtain the pair r1r2. The method is suggested for use in determination of the molar ratios of the chemical units in the polymer chain, regardless of chemical composition or constitution. The simplicity of this technique allows its use for monomer-polymer systems composed of any number of volatile monomers. The validity of this method was checked by using the pair methyl methacrylate-styrene. This technique is also being applied to the study of kinetics in polymerizations, since it allows the measurements of several samples taken from a single experiment.
    Additional Material: 1 Tab.
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  • 5
    Publication Date: 2013-03-02
    Description: Prenatal infection and exposure to traumatizing experiences during peripuberty have each been associated with increased risk for neuropsychiatric disorders. Evidence is lacking for the cumulative impact of such prenatal and postnatal environmental challenges on brain functions and vulnerability to psychiatric disease. Here, we show in a translational mouse model that combined exposure to prenatal immune challenge and peripubertal stress induces synergistic pathological effects on adult behavioral functions and neurochemistry. We further demonstrate that the prenatal insult markedly increases the vulnerability of the pubescent offspring to brain immune changes in response to stress. Our findings reveal interactions between two adverse environmental factors that have individually been associated with neuropsychiatric disease and support theories that mental illnesses with delayed onsets involve multiple environmental hits.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Giovanoli, Sandra -- Engler, Harald -- Engler, Andrea -- Richetto, Juliet -- Voget, Mareike -- Willi, Roman -- Winter, Christine -- Riva, Marco A -- Mortensen, Preben B -- Feldon, Joram -- Schedlowski, Manfred -- Meyer, Urs -- New York, N.Y. -- Science. 2013 Mar 1;339(6123):1095-9. doi: 10.1126/science.1228261.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Physiology and Behavior Laboratory, Swiss Federal Institute of Technology (ETH) Zurich, 8603 Schwerzenbach, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23449593" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cytokines/immunology ; Disease Models, Animal ; Female ; Humans ; Mental Disorders/*immunology ; Mice ; Mice, Inbred C57BL ; Poly I-C/immunology/pharmacology ; Pregnancy ; Prenatal Exposure Delayed Effects/*immunology/virology ; Puberty/*immunology ; Stress, Physiological/*immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 2014-08-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gaggioli, Andrea -- Riva, Giuseppe -- England -- Nature. 2014 Aug 7;512(7512):28. doi: 10.1038/512028b.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Catholic University; and Istituto Auxologico, Milan, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25100471" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Phones ; Cognitive Therapy ; Evidence-Based Medicine/instrumentation ; Humans ; Internet ; Mental Disorders/*therapy ; Mobile Applications ; Monitoring, Ambulatory/instrumentation ; Neurophysiological Monitoring/instrumentation ; Virtual Reality Exposure Therapy
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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