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  • 1
    Electronic Resource
    Electronic Resource
    Isolation of Quercitrin and Quercetin from Goldenrod Material (1944)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 66 (1944), S. 1794-1795 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01238a503
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  • 2
    Electronic Resource
    Electronic Resource
    Signs of temporomandibular disorders in tinnitus patients and in a population-based group of volunteers: results of the Study of Health in Pomerania (2004)
    Oxford, UK : Blackwell Science Ltd
    Journal of oral rehabilitation 31 (2004), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: summary  The literature has documented a controversial discussion on the possible relationship of otogenous symptoms and craniomandibular dysfunction since the 1920s. Therefore, an investigation was conducted which consisted of two parts: a case study with population-based controls and a cross-sectional study. The aim of the first study was to screen a group of patients suffering from acute or chronic tinnitus for temporomandibular disorders (TMD) in comparison with a population-based group of volunteers without tinnitus. To this end, 30 patients (13 females and 17 males, age 18–71 years) suffering from acute hearing loss associated with tinnitus, isolated acute tinnitus, and chronically transient tinnitus were examined for symptoms of craniomandibular dysfunction. The results were compared with those of clinical functional analysis from 1907 subjects selected representatively and according to age distribution from the epidemiological ‘Study of Health in Pomerania’ (SHIP); the occurrence of tinnitus was ruled out in these control subjects. Statistical analysis was performed with Chi-square and Mann–Whitney U-tests. Sixty per cent of the tinnitus patients and 36·5% of the control subjects exhibited more than two symptoms of TMD (P = 0·004). Tinnitus patients had significantly more muscle palpation pain (P 〈 0·001), temporomandibular joint (TMJ) palpation pain (P 〈 0·001), and pain upon mouth opening (P 〈 0·001) than the general population group. No statistical differences were found in TMJ sounds, limitation of mandibular movement, or hypermobility of the TMJ. Furthermore, 4228 subjects of the population group examined in the epidemiological study were screened for co-factors of tinnitus with the help of a multivariate logistic regression model which was adjusted for gender, age, and a variety of anamnestic and examined data. Increased odds ratios (OR) were found for tenderness of the masticatory muscles (OR = 1·6 for one to three painful muscles and OR = 2·53 for four or more painful muscles), TMJ tenderness to dorsal cranial compression (OR = 2·99), listlessness (OR = 2·0) and frequent headache (OR = 1·84) A relationship between tinnitus and TMD was established in both examinations. Tinnitus patients seem to suffer especially from myofascial and TMJ pain. A screening for TMD should be included in the diagnostic survey for tinnitus patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2842.2003.01249.x
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  • 3
    Electronic Resource
    Electronic Resource
    KINETICS OF THE CATALYTIC VAPOR PHASE OXIDATION OF PHTHALIC ANHYDRIDE (1960)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 64 (1960), S. 781-784 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100835a020
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  • 4
    Electronic Resource
    Electronic Resource
    Rate Law and Mechanism for the Oxidation of Carbon Monoxide over a Vanadium Oxide Catalyst (1955)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 59 (1955), S. 388-391 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j150527a002
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  • 5
    Electronic Resource
    Electronic Resource
    N,N'-Dimethyl-N,N'-dinitrosoterephthalamide Blowing Agent Preparation, Properties, and General Applications (1957)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 49 (1957), S. 722-730 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie50568a038
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  • 6
    Electronic Resource
    Electronic Resource
    Preparation of Poly(vinyl Chloride) Foam at Atmospheric Pressure (1957)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 49 (1957), S. 730-736 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie50568a039
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  • 7
    Electronic Resource
    Electronic Resource
    Dissociation constants and lipophilicity of catecholamines and related compounds (1979)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 310 (1979), S. 1-9 
    Details
    ISSN: 1432-1912
    Keywords: Dissociation constants ; Lipophilicity of sympathomimetic amines ; Lipophilicity of noradrenaline metabolites ; Efflux of noradrenaline metabolites
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 1. The dissociation constants (pKa1, pKa2, pKCOOH), n-octanol/water distribution coefficients D (at pH 7.4) and partition coefficients P of a series of sympathomimetic amines and of catecholamines, their precursors and metabolites were determined. 2. The influence of different substituents of compounds bearing an amino group on lipophilicity (log D and log P) and on pKa1 values was estimated. Introduction of a hydroxyl group reduced the lipophilicity of phenylethylamines and related compounds. Hydroxylation of the phenyl ring led to a stronger reduction of lipophilicity than did β-hydroxylation. An additional methoxy group in the molecule reduced the lipophilicity to only a very small degree. Alkylation always increased lipophilicity; the degree was dependent on the position and on the size of the alkyl group. The pKa1 values of phenolic amines were more influenced by the introduction of hydrophilic groups than by lipophilic groups. Hydroxylation always decreased the pKa1 values independent of the position of the hydroxyl group, while the introduction of a methyl group at the N-terminal of phenolic amines increased it. An α-methyl group or a methoxy group at the phenyl ring was without any effect on pKa1 values. 3. For noradrenaline and its precursors the following rank order of lipophilicity was observed (at pH 7.4): tyrosine 〉 dopa 〉 dopamine 〉 noradrenaline; the rank order for the metabolites of noradrenaline was MOPEG 〉 DOPEG 〉 normetanephrine 〉 VMA 〉 DOMA. 4. The lipophilicity (at pH 7.4) of the metabolites of noradrenaline was correlated with the rate constants for efflux of these metabolites from peripheral organs (Graefe, 1976; Henseling et al., 1978; Fiebig and Trendelenburg, 1978a).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00499868
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  • 8
    Electronic Resource
    Electronic Resource
    A new view of the electronic structure of the spin-Peierls compound -NaV O (1998)
    Springer
    The European physical journal 5 (1998), S. 367-370 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 75.50.Ee Antiferromagnetics - 75.30.Et Exchange and superexchange interactions - 75.40.Cx Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The present understanding of the electronic and magnetic properties of -NaV2O5 is based on the hypothesis of strong charge disproportionation into V4+ and V5+, which is assumed to lead to a spin-1/2 Heisenberg chain system. A recent structure analysis shows, however, that the V-ions are in a mixed valence state and indistiguishable. We propose an explanation for the insulating state, which is not based on charge modulation, and show that strong correlations together with the Heitler-London character of the relevant intermediate states naturally lead to antiferromagnetic Heisenberg chains. The interchain coupling is weak and frustrated, and its effect on the uniform susceptibility is found to be small.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100510050455
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  • 9
    Electronic Resource
    Electronic Resource
    Emulsion polymerization of triallyl phosphate with halomethanesThis is a report on one phase of a program of research on the flame-resistant treatment of cotton textiles, being supported at the Southern Utilization Research Branch by funds supplied by the Office of the Quartermaster General, Department of the Army, and conducted under the general supervision of the Research and Development Command, Natick, Massachusetts. (1956)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 20 (1956), S. 307-315 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Trially phosphate has been polymerized in emulsion by itself and with four halogenated methanes: carbon tetrabromide, bromoform, bromotrichloromethane, and carbon tetrachloride. Of the four halomethanes, carbon tetrachloride enters telomer formation only to a slight extent, and bromoform and carbon tetrabromide enter to the greatest extent. In most cases a product consisting of two distinct fractions was formed, a solid-insoluble polymer, and a liquid-soluble polymer. The latter is of only a low degree of polymerization, ranging from 1.0 to 2.3 phosphate units. In the course of the reaction, the soluble fraction is formed first and then is partially converted to the insoluble fraction by crosslinking. The polymerization of trially phosphate with bromoform received the most study. In this case the ratio of insoluble to soluble fraction can be changed by varying the amount of initiator and the ratio of bromoform to phosphate. A molar ratio of bromoform to trially phosphate greater than 2.0 yields only monomeric addition products. By the proper choice of conditions a very stable emulsion of a polymer containing phosphorus and bromine can be obtained. This emulsion is suitable for direct application to cotton textiles in order to produce flame-resistant fabrics.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1956.120209507
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  • 10
    Electronic Resource
    Electronic Resource
    Ueber Dinitrodimethylamidodiphenylamin (1890)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 23 (1890), S. 2739-2740 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.189002302176
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