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  • Chemistry  (40)
  • Adenylate kinase  (1)
  • Negative symptoms  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Purification and properties of the adenylate kinases from Rhodopseudomonas palustris, Rhodopseudomonas sphaeroides and Rhodopseudomonas rubrum (1983)
    Springer
    Archives of microbiology 134 (1983), S. 153-157 
    Details
    ISSN: 1432-072X
    Keywords: Adenylate kinase ; Chromatophores ; Membranes ; Photosynthesis ; Rhodopseudomonas ; Rhodospirillum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The adenylate kinases (EC 2.7.4.3) from photosynthetically grown Rhodopseudomonas palustris, Rhodopseudomonas sphaeroides and Rhodospirillum rubrum were purified to homogeneity by the same procedure. The purified enzymes showed optimal rates of activity with MgCl2 at 25° C and pH 8.0. They were found to be heat labile and were characterized by pI-values of 4.5. Apparent molecular weights of 33 500 for R. palustris, 34 400 for R. sphaeroides and 32 100 for R. rubrum were determined by high performance liquid chromatography. No separation into subunits was observed by use of sodium dodecylsulfate polyacrylamide gel electrophoresis. The apparent K m -values for ADP corresponded to 0.26 mM for R. palustris, 0.27 mM for R. sphaeroides and 0.24 mM for R. rubrum. ADP in excess had a strong inhibitory effect. Competitive product inhibition was found for AMP, with K i-values of 0.017 mM for R. palustris, 0.018 mM for R. sphaeroides and 0.014 mM for R. rubrum. A competitive inhibitor likewise was P1,P5-di(adenosine-5′)pentaphosphate with K i-values of 0.020 μM for R. palustris and R. sphaeroides, and 0.017 μM for R. rubrum. Sulfhydryl-reacting reagents like p-chloromercuribenzoate and iodoacetic acid were found to be non-inhibitory. All measurements of adenylate kinase activity were carried out with the stabilized and most sensitive luciferin-luciferase system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00407949
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  • 2
    Electronic Resource
    Electronic Resource
    A path-analytical approach to differentiate between direct and indirect drug effects on negative symptoms in schizophrenic patients (1995)
    Springer
    European archives of psychiatry and clinical neuroscience 245 (1995), S. 45-49 
    Details
    ISSN: 1433-8491
    Keywords: Neuroleptics ; Negative symptoms ; Risperidone ; Schizophrenia ; Haloperidol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The hypothesis that differences in drug effects of risperidone and haloperidol on negative symptoms in schizophrenia are secondary to effects on positive, extrapyramidal, and depressive symptoms was investigated by means of an analysis of the data from the USA-Canada risperidone double-blind randomized clinical trial of 523 chronic schizophrenic patients. Regression analyses in the total sample and within treatment groups confirmed a strong relationship between changes in negative symptoms and the other variables studied (R2=0.50−0.51,p〈0.001). Only depressive symptoms did not contribute significantly to these results (p〉0.10). Path analysis showed that the greater mean change (p〈0.05) of negative symptoms with risperidone compared to haloperidol could not be fully explained by correlations with favourable effects on positive and extrapyramidal symptoms. The relationship between shift in extrapyramidal symptoms and shift in negative symptoms failed to reach statistical significance; however, there was a clear tendency in the expected direction in both treatment groups.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02191543
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  • 3
    Electronic Resource
    Electronic Resource
    Untersuchungen über Mischkristalle K2Me′X6-K2Me″Y6. III. Das System K2OsBr6-K2SnCl6 (1966)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 342 (1966), S. 177-181 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Homogeneous mixed crystals between K2OsBr6 and K2SnCl6 have been prepared in any composition ratio by precipitation from concentrated solutions with concentrated hydrochloric acid. The mixed crystals are free from mixed hexa(chlorobromo)-osmate and -stannate ions. The lattice constants are larger than predicted by VEGARD's law.
    Notes: Durch Fällung konzentrierter Lösungen von K2OsBr6 und K2SnCl6 mit konzentrierter Salzsäure wurden homogene Mischkristalle in allen beliebigen Mischungsverhältnissen erhalten. Die Mischkristalle sind frei von gemischten Hexa(chlorobromo)-osmaten und -stannaten. Die Gitterkonstanten liegen über den nach der VEGARDschen Regel zu erwartenden Werten.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19663420310
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  • 4
    Electronic Resource
    Electronic Resource
    Untersuchungen über Mischkristalle K2Me′X6—K2Me″Y6. IV. Das System K2ReBr6—K2OsCl6 (1967)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 352 (1967), S. 291-294 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Homogeneous mixed crystals between K2ReBr6 and K2OsCl6 have been prepared in the composition range 2-20 mol-% K2ReBr6 by precipitation with ehtanol from hydrochloric acid solutions. The mixed crystals are free from mixed-ligand bromochloro rhenate and osmate ions.
    Notes: Durch Fällung salzsaurer Lösungen von K2ReBr6 und K2OsCl6 mit Äthanol wurden homogene Mischkristalle im Bereich von 2 bis 20 Mol-% K2ReBr6 erhalten. Die Mischkristalle sind frei von gemischten Hexa(bromochloro)-rhenaten und -osmaten.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19673520512
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  • 5
    Electronic Resource
    Electronic Resource
    Das Mischkristallsystem K2ReCl6—K2SnCl6Professor Georg Brauer zum 60. Geburtstage gewidmet (1968)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 357 (1968), S. 253-254 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Homogeneous mixed crystals between K2ReCl6 and K2SnCl6 have been prepared in any composition ratio by precipitation from concentrated solutions with concentrated hydrochloric acid. The lattice constants follow VEGARD's law.
    Notes: Durch Fällung konzentrierter Lösungen von K2ReCl6 und K2SnCl6 mit konzentrierter Salzsäure wurden homogene Mischkristalle in allen beliebigen Mischungsverhältnissen erhalten. Der Gang der Gitterkonstanten folgt der VEGARDschen Regel.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19683570413
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  • 6
    Electronic Resource
    Electronic Resource
    Untersuchungen über Mischkristalle K2Me′X6-K2Me″Y6. II. Das System K2ReBr6-K2SnCl6 (1965)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 336 (1965), S. 24-35 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Homogeneous mixed crystals between K2ReBr6 and K2SnCl6 have been prepared in any composition ratio by precipitation from concentrated solutions with concentrated hydrochloric acid. The mixed crystals are free from mixed hexa(chlorobromo)- rhenate and -stannate ions. The lattice constants are larger than predicted by VEGARD's law; the deviations are explained by uncoupling of superexchange between neighbouring ReBr62- groups as a consequence of the formation of mixed crystals.
    Notes: Durch Fällung konzentrierter Lösungen von K2ReBr6 und K2SnCl6 mit konzentrierter Salzsäure wurden homogene Mischkristalle in allen beliebigen Mischungsverhältnissen erhalten. Die Mischkristalle sind frei von gemischten Hexa(chlorobromo)-rhenaten und -stannaten. Die Gitterkonstanten liegen über den nach der VEGARDschen Regel zu erwartenden Werten. Diese Abweichung wird auf die Aufhebung der Superaustausch-Resonanz zwischen benachbarten ReBr62--Gruppen infolge der Mischkristallbildung zurückgeführt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19653360105
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  • 7
    Electronic Resource
    Electronic Resource
    Phasenverhältnisse in den Systemen Cer-Wasserstoff und Cer-Deuterium (1982)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 487 (1982), S. 63-74 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Phase Relationships in the Systems Cerium-Hydrogen and Cerium-DeuteriumThe phase relationships in the system cerium-hydrogen have been reinvestigated. Contrary to the literature a decrease of the lattice parameter with increasing hydrogen content has been observed for the cubic hydrides only up to a composition CeH2.30, for higher hydrogen content the lattice parameters remain constant. At the composition Ce3H7 a new phase with a tetragonal structure has been found. The analogous phases have been observed in the Ce—D system.
    Notes: Die Phasenverhältnisse im System Cer-Wasserstoff wurden neu untersucht. Im Gegensatz zu den bisherigen Literaturangaben konnte bei den kubischen Hydriden eine Abnahme der Gitterparameter mit steigendem Wasserstoffgehalt nur bis zu einer Zusammensetzung von CeH2,30 beobachtet werden, bei noch größeren Wasserstoffgehalten bleiben die Gitterparameter konstant. Bei der Zusammensetzung Ce3H7 wurde eine neue Phase mit tetragonaler Struktur gefunden. Im System Ce—D treten die analogen Phasen auf.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19824870107
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  • 8
    Electronic Resource
    Electronic Resource
    Darstellung gemischter Kaliumhexabromochloro-osmate(IV), K2OsBrnCl6-n (n = 1…5) und Kaliumhexabromochloro-rhenate(IV), K2ReBrnCl6-n (n = 1…5)Professor Georg Brauer zum 75. Geburtstage gewidmet (1983)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 503 (1983), S. 15-21 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation of Mixed Potassium Hexabromochloro Osmates(IV), K2OsBrnCl6-n (n = 1…5), and Potassium Hexabromochloro Rhenates(IV), K2ReBrnCl6-n (n = 1…5)Solutions of mixed hexabromochloro osmates and rhenates which were separated by ion column chromatography are extracted by tridodecylamine in ether. The potassium salts are precipitated from the extractions with potassium acetate and following further purification are characterized spectrophotometrically and by powder X-ray methods.
    Notes: Lösungen säulenchromatographisch aufgetrennter gemischter Hexabromochloro-osmate und -rhenate wurden mit Tridodecylamin in Ether extrahiert. Die hieraus mit Kaliumacetat gefällten Kaliumsalze wurden nach weiterer Reinigung spektralphotometrisch und pulverröntgenographisch charakterisiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19835030803
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  • 9
    Electronic Resource
    Electronic Resource
    Das Mischkristallsystem (NH4)2ReCl6-;(NH4)2SnCl6 (1977)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 437 (1977), S. 245-248 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Mixed Crystal System (NH4)2ReCl6—(NH4)2SnCl6Homogeneous mixed crystals between (NH4)2ReCl6 and (NH4)2SnCl6 have been prepared in any composition ratio by precipitation from concentrated solutions with concentrated hydrochloric acid. The lattice constants follow VEGARD'S rule.
    Notes: Durch Fällung konzentrierter Lösungen von (NH4)2ReCl6 und (NH4)2SnCl6 mit konzentrierter Salzsäure wurden homogene Mischkristalle in allen beliebigen Mischungsverhältnissen erhalten. Der Gang der Gitterkonstanten folgt der Vegardschen Regel.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19774370135
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  • 10
    Electronic Resource
    Electronic Resource
    Untersuchungen über Mischkristalle K2Me′X6-K2Me′Y6. I Das System K2ReCl6-K2ReBr6 (1963)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 321 (1963), S. 124-137 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Homogeneous mixed crystals between K2ReCl6 and K2ReBr6 have been prepared in any composition ratio by precipitation from weak acidic solutions with isopropanol. They were analysed spectrophotometrically. The mixed crystals are free from chlorobromorhenate ions. The lattice constants follow Vegard's law.
    Notes: Durch Fällung schwach saurer Lösungen von K2ReCl6 und K2ReBr6 mit Isopropylalkohol wurden homogene Mischkristalle in allen beliebigen Mischungsverhältnissen erhalten. Die Zusammensetzung der Fällungen wurde spektralphotometrisch bestimmt. Die Mischkristalle sind frei von gemischten Hexa(chlorobromo)-rhenaten. Der Gang der Gitterkonstanten folgt dem Vegardschen Gesetz.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19633210304
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