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  • 1
    Electronic Resource
    Electronic Resource
    Light-induced alterations in cell shape and pigment displacement in chromatophores of the sea urchin Centrostephanus longispinus (1977)
    Springer
    Cell & tissue research 182 (1977), S. 165-176 
    Details
    ISSN: 1432-0878
    Keywords: Chromatophores ; Light-sensitivity ; Granule motion ; Echinoids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Alterations in cell shape of the light-sensitive chromatophores of Centrostephanus longispinus are described. Upon illumination a centrifugal pigment movement starts within extremely thin filopodia which radiate from the cell body. With continued pigment migration the cellular processes increase in length and diameter and give the cell an irregular stellate appearance. Pigment movement within the cellular processes is discontinuous in space and time and may occur independently in single filopodia. The motion of single granules shows characteristic features of a saltatory movement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00220586
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  • 2
    Electronic Resource
    Electronic Resource
    Ultrastructure of the basiepithelial nerve plexus of the sea urchin, Centrostephanus longispinus (1977)
    Springer
    Cell & tissue research 175 (1977), S. 551-562 
    Details
    ISSN: 1432-0878
    Keywords: Nerve plexus ; Vesicles ; Nerve cell bodies ; Ultrastructure ; Echinoids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The basiepithelial nerve plexus of the Echinoid, Centrostephanus longispinus, contains strands of nerve fibres, which measure between 0.1 and 2.0 μm in diameter. Nonciliated epithelial supporting cells do not contribute to the plexus. Within the fibres different vesicular inclusions are found. By means of serial sectioning the structure of multipolar cell bodies within the plexus could be demonstrated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222418
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  • 3
    Electronic Resource
    Electronic Resource
    Ebullioskopische Bestimmungen bei tiefen Temperaturen -35.7 bis -82.9° (1912)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 74 (1912), S. 297-309 
    Details
    ISSN: 0863-1778
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19120740123
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  • 4
    Electronic Resource
    Electronic Resource
    Das Zustandsdiagramm der Kupfer-Goldlegierungen (1931)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 201 (1931), S. 41-74 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19312010107
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  • 5
    Electronic Resource
    Electronic Resource
    Ultrastructural observations on changes in cell shape in chromatophores of the sea urchin Centrostephanus longispinus (1980)
    Springer
    Cell & tissue research 206 (1980), S. 21-33 
    Details
    ISSN: 1432-0878
    Keywords: Chromatophores ; Light-sensitivity ; Alteration in cell shape ; Microtubules ; Echinoids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Alterations in cell shape of the light-sensitive chromatophores of the sea urchin Centrostephanus longispinus were studied by scanning- and transmission electron microscopy. Transition of the aggregated to the dispersed state is accompanied by incorporation of vesicles into the membrane of the pigment cell. During dispersion a system of microtubules originating from centriole-like structures is established throughout the stellate cell. Within restricted areas of the cell, cytoplasmic differentiation and condensation is found. The possible functional significance of the findings is briefly discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00233604
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  • 6
    Electronic Resource
    Electronic Resource
    Application of intracellular ATP determination in lymphocytes for HLA-typing (1986)
    New York : Wiley-Blackwell
    Journal of Bioluminescence and Chemiluminescence 1 (1986), S. 47-51 
    Details
    ISSN: 0884-3996
    Keywords: ATP ; luciferin-luciferase ; bioluminescent assay ; HLA-typing ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: The amount of adenosine triphosphate (ATP) in human lymphocytes was determined using a technique based on light emission from a bioluminescent reaction with luciferin-luciferase. The amount of ATP changed when cells were incubated in the presence of specific HLA antisera and complement. For determination of intracellular ATP a modified method was applied, which was based on reduction of extracellular ATP by the addition of ATPase. The results of titration of an anti-human lymphocyte serum using the bioluminescence assay were in agreement with the results of fluorescence vitality staining. Bioluminescent HLA-determination in 57 cell samples each tested with 5 different antisera also gave good agreement (95.8%) with the conventional method. From these experimental data the calculated ATP content per lymphocyte was 0.135 ± 0.058 pg ATP.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bio.1170010202
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  • 7
    Electronic Resource
    Electronic Resource
    Herstellung makroporöser Pellets aus Aluminiumoxid (1977)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 49 (1977), S. 42-42 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330490110
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  • 8
    Electronic Resource
    Electronic Resource
    Fabric Forming Systems. Von P. SCHWARTZ, T. RHODES und M. MOHAMED. Park Ridge, New Jersey, USA: Noyes Publications 1982. 175 S., 117 Abb., $ 24.00 (1983)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 34 (1983), S. 764-764 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1983.010341130
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  • 9
    Electronic Resource
    Electronic Resource
    Synthese einiger cyclodiurethane (1961)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 43 (1961), S. 98-105 
    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: Several cyclic diurethanes were synthesized by two different methods applying RUGGLIZIEGLER'S principle of dilution. Only by preparation from diamines and diol-bis-chlorocarbonate good yields could be obtained. Using diols and diisocyanates as starting materials linear polyurethans were the main products.
    Notes: Mehrere Cyclodiurethane wurden unter Anwendung des RUGGLI-ZIEGLERschen Verdünnungsprinzips nach zwei verschiedenen Verfahren synthetisiert. Bei der Darstellung aus Diaminen und Diol-bis-chlorkohlensäureestern konnten die Verbindungen in guten Ausbeuten gewonnen werden. Dagegen werden bei Anwendung von Diolen und Diisocyanaten als Ausgangsmaterialien im wesentlichen lineare Polyurethane erhalten.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1961.020430109
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  • 10
    Electronic Resource
    Electronic Resource
    Synthese von Cyclo-urethanenHerrn Prof. Dr., Dr. h.c., Dr. e.h., Dr. h.c. OTTO BAYER zum 60. Geburtstag gewidmet (1962)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 57 (1962), S. 241-254 
    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: The bis-chlorocarbonates of some oligo-ethylene glycols HO - (CH2CH2O)nH (n = 1-6) were reacted with hexamethylene diamine, m-toluylene diamine, p-phenylene diamine respectively to form the corresponding cyclic diurethanes. The dependency of the yield regarding the ringsize shows a maximum with 17 members in the ring. Also the catalyzed reaction of diisocyanates with diols was used for the preparation of cyclic urethanes.In the presence of di-n-butyltin-dilaurate exchange reactions were observed between hydroxyl-endgroups and urethane-groups as well as between urethane-groups.
    Notes: Die Bis-chlorkohlensäureester einiger Oligoäthylenglykole HO - (CH2CH2O)nH (n = 1-6) wurden mit Hexamethylendiamin, m-Toluylendiamin bzw. p-Phenylendiamin zu den entsprechenden Cyclodi-urethanen umgesetzt. Die Ausbeute in Abhängigkeit von der Ringgröße ergibt ein Maximum bei einer Ringgliederzahl von etwa 17. Ebenso wird die katalysierte Reaktion von Diisocyanaten mit Diolen zur Darstellung von Cyclo-urethanen benutzt.In Gegenwart von Di-n-butylzinndilaurat werden Austauschreaktionen sowohl zwischen Hydroxylendgruppen und Urethangruppen als auch zwischen Urethangruppen beobachtet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1962.020570114
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