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  • 1
    Electronic Resource
    Electronic Resource
    Pinocytosis and locomotion in amoebae (1979)
    Springer
    Protoplasma 100 (1979), S. 33-43 
    Details
    ISSN: 1615-6102
    Keywords: Amoeba proteus ; Ca++-binding sites ; Cytochemical demonstration ; Induced pinocytosis ; Plasma membrane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Different methods were used to demonstrate the existence of Ca++-binding sites (Ca++-bs) at the plasma membrane ofAmoeba proteus. In pinocytoting animals the number (indicated by the average distanced in nm) and size (average longitudinal axiss in nm) of Ca++-bs at the cytoplasmic surface of the cell membrane were significantly increased (d=162±15;n=41 ands=93±5;n=47) in comparison to controls (d=208 ±21;n=37 ands=59±8;n=45). The ratio of P: Ca obtained by X-ray microanalysis was in the range of 1.5. The differences observed in the two experimental groups of amoebae are explained by conformational changes in the molecular structure and an increased Ca++-permeability of the plasma membrane during induced pinocytosis. Microplasmodia of the acellular slime moldPhysarum polycephalum investigated for comparison were found to have no Ca++-bs at the interior cell surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01276299
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  • 2
    Electronic Resource
    Electronic Resource
    Pinocytosis and locomotion of amoebae: XII. Dynamics and motive force generation during induced pinocytosis in A. proteus (1979)
    Springer
    Cell & tissue research 197 (1979), S. 263-279 
    Details
    ISSN: 1432-0878
    Keywords: Induced pinocytosis ; Dynamics ; Motive force generation ; Light and electron microscopy ; Amoeba proteus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The mechanism of induced pinocytosis was investigated in Amoeba proteus by light and electron microscopy. The application of nine different inducing substances revealed that pinocytotic channel formation, elongation, vesiculation, shortening and disappearance are the result of the successive or simultaneous action of both traction and pressure forces, which are produced by the contractile activity of a plasma membrane-associated layer of filaments ranging from a few hundred nm to several μ in thickness. The initial phase of channel formation is caused by traction forces according to the membrane flow concept, whereas channel elongation and vesiculation mainly result from pressure forces in conjunction with the extrusion of small hyaline pseudopodia. Shortening and disappearance of the pinocytotic channels are brought about by local contractions of the cortical filament layer in the basal region of the hyaline pseudopodia. Experiments using latex beads as marker particles together with inducing substances show that a rapid membrane turnover during pinocytosis can be excluded, and that the plasma membrane slides as an entire structure over the underlying cytoplasm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00233919
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  • 3
    Electronic Resource
    Electronic Resource
    Analysis of diers venting tests: Validation of a tool for sizing emergency relief systems for runaway chemical reactions (1986)
    New York, NY : Wiley-Blackwell
    Plant/Operations Progress 5 (1986), S. 1-10 
    Details
    ISSN: 0278-4513
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A one-dimensional computer model of multiphase, chemically reacting flow has been used to analyze a number of DIERS Phase III venting tests.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prsb.720050103
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  • 4
    Electronic Resource
    Electronic Resource
    27. Untersuchung von regenerativen Rotor-Wärmeübertragern mit Kondensation und Verdampfung (1996)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 68 (1996), S. 1079-1080 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330680929
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  • 5
    Electronic Resource
    Electronic Resource
    O-Phthalsäuredialkylester als PVC-weichmacher (1955)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 16 (1955), S. 1-9 
    Details
    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: 38 Dialkylesters of o-phthalic acid are examined as plasticizers for polyvinyl chloride. The plasticizer efficiency is determined by means of dielectric measurements for the molar plasticizer concentration c = 0.1. In the case of isomeric esters the n-alkylesters always have the highest plasticizer efficiency while with the n-alkylesters the efficiency increases proportionally with the length of the alkyl chain. The influence of chain length and branching of the alkylgroup also shows itself in the viscosity of the pure plasticizer. From the graphical representation of the relationship between plasticizer efficiency Δ T and viscosity η conclusions may be drawn concerning the structure of the alkyl groops.
    Notes: 38 o-Phthalsäuredialkylester werden als Weichmacher für Polyvinylchlorid (PVC) untersucht. Die Weichmacher-Wirksamkeit wird, wie in früheren Arbeiten, mit Hilfe dielektrischer Messungen bestimmt, für die molare Weichmacher-Konzentration c = 0,1. Bei isomeren Estern hat der n-Alkylester immer die höchste Weichmacher-Wirksamkeit und bei den n-Alkylestern steigt die Weichmacher-Wirksamkeit mit der Länge des Alkyls linerar an. Die Länge und Verzweigung des Alkyls macht sich auch in der Viskosität des reinen Weichmachers bemerkbar. Die Kombination von Weichmacher-Wirksamkeit Δ T und Viskosität in dem Diagramm Δ T = f (η) führt zu Hinweisen auf den strukturellen Aufbau der Alkyle.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1955.020160101
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  • 6
    Electronic Resource
    Electronic Resource
    Das Dimethylphosphinomethanid-Ion, (CH3)2PCH2⊖, ein neuer Ligand für Übergangsmetalle (1975)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 87 (1975), S. 630-631 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19750871711
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  • 7
    Electronic Resource
    Electronic Resource
    Determination of Stress Tensors in thin textured copper films by grazing incidence diffraction (1995)
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 26 (1995), S. 553-559 
    Details
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Bestimmung der Spannungstensoren in dünnen, texturierten Kupferschichten mittels Röntgenbeugung bei streifendem EinfallIonenplattierte Kupferschichten wurden mittels Röntgenbeugung hinsichtlich Texturen und Eigenspannungen untersucht. Die vollständigen Orientierungsverteilungsfunktionen wurden bestimmt und scharfe (111)-Fasertexturen gefunden. Die Messung der Dehnungen erfolgte unter streifendem Strahleinfall. Zur Berechnung der Spannungstensoren wurden sowohl texturgewichtete elastische Moduln als auch texturunabhängige elastische Moduln verwendet. Die Bedeutung der Texturmessung für die Spannungstensorbestimmung wird diskutiert. Die gefundenen Spannungen können als thermisch verursacht verstanden werden.
    Notes: Ion-platted thin copper films were examined for residual stresses and texture by X-ray diffraction. The complete orientation distribution functions were determined and sharp (111)-fibre textures were found. The strains were measured by grazing incidence diffraction. The stress tensors were calculated using both texture-weighted elastic compliances and texture-independent X-ray elastic constants. The importance of the texture measurement for the stress tensor determination is discussed. The found stresses can be interpreted as thermally induced.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mawe.19950261012
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  • 8
    Electronic Resource
    Electronic Resource
    Cation selective tubular carrier-PVC-membranes containing polymeric plasticizer with low tendency of migration for Solid State Contact Electrodes (1994)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 336 (1994), S. 575-580 
    Details
    ISSN: 0941-1216
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The lifetime of cation selective carrier-PVC-membranes partially depends on the components' remaining in the membrane. An exchange of monomeric by polymeric plasticizers with low tendency to migrate lengthens the function time drastically. Other than for Na+ - and NH4+-selective membranes, it is essential for K+ - and Ca2+-selective membranes and optional for H+-selective membranes to incorporate lipophilic anions in order to make the phase transfer catalysis more efficient. The resistence to saponification of phthalic acid polyester gives H+-selective membranes a high stability of measured values even in the alkaline range.For anion selective PVC-membranes, instead of cation selective plasticizers the plasticizing qualities of a liquid charged ligand should be used.The tubular carrier-PVC-membranes of our ion selective flow through measuring systems are diffusion welded to the ends of two PVC-tubes [1] so that they are absolutely tight with no risk of potential leakage. Migration of the membrane components plasticizer and ionophore across this border as well as their extraction [2, 3] into the measuring solution [4] will naturally reduce the membrane's functionning time [5].
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19943360703
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  • 9
    Electronic Resource
    Electronic Resource
    Substituierte Alkinyle als axiale Liganden an häminähnlich gebundenem Eisen(III) - Einordnung in eine spektrochemische SerieHerrn Professor Dr. E. Hoyer zum 60. Geburtstag gewidmet (1991)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 333 (1991), S. 423-430 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Substituted Alkinyles as Axial Ligands at Hemine Like Bound Iron(III) - Incorporation into a Spectrochemical Series.Substituted lithium alkynyles Li—C≡C—R (R = tBu, Ph, p-Cl—C6H4, Me3Si, iPr3Si, Ph3Si) react with the hemine like macrocyclic iron(III) complex 6,13-di(ethoxycarbonyl)-5, 14-dimethyl-1, 4, 8, 11-tetraazatetradeca-4,6,12,14-tetraenato[2-]iron(III)-iodide (formula 2;) in tetrahydrofuran to form anionic low-spin di-adducts [fe(C≡C—R)2]-. The incorporation of the alkynyles into a spectrochemical series of the axial ligands (studied by the sharp equatorial-ligand-to-metal CT absorption band) results in the wavelength-sequence (nm): OH- (≍ 510) « N3- (≍ 625) 〈 tBu—C≡C- (664) 〈 NH3 (666) 〈 Ph—C≡C- (692) 〈 Ph—NH2 (695) 〈 Me3Si—C≡C- (698) 〈 SCN- (713) 〈 Ph3Si—C ≡ C- (716) 〈 CN- (739) 〈 4-picoline (759) 〈 pyridine (765) 〈 nicotinamide (776) 〈 methylnicotinat (788) 〈 pyrazine (798) and points to a significant π-acceptor ability of the silyl substituents.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19913330307
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  • 10
    Electronic Resource
    Electronic Resource
    Ein neuer Beitrag zur Phosphazoreaktion (1973)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 399 (1973), S. 225-230 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A New Contribution to the Phosphazo ReactionThe reaction of acrylonitrile with phosphorus pentachloride gives ClCH2CCl2CCl2NPCl3 (I) and a hexachlorophosphate with the composition C3H2Cl14NP3 (II). For the first time the structure of (II) has been exactly determined by using 1H- and 31P-NMR-spectra. The course of reaction was studied in detail. 3-chloropropionitrile has been found as the product of a secondary reaction. The reaction of butyramide with PCl5 has also been investigated, and was found to be analogous.
    Notes: Bei der Umsetzung von Acrylnitril mit PCl5 entsteht neben ClCH2CCl2CCl2NPCl3 (I) auch das Hexachlorophosphat mit der Zusammensetzung C3H2Cl14NP3 (II). Die Struktur von (II) konnte durch 1H- und 31P-NMR-Untersuchungen erstmals eindeutig bestimmt werden. Der gesamte Reaktionsablauf wurde untersucht. Infolge einer Sekundärreaktion entsteht u. a. 3-Chlorpropionitril. Die Umsetzung von Butyramid mit PCl5 wird ebenfalls beschrieben. Sie zeigt einen analogen Verlauf.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19733990213
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