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  • Industrial Chemistry  (55)
  • Age; AGE; Approximate age of pith; BULUNLAD; Bulun river, Russia; Density, maximum; Density, minimum; Earlywood density; Earlywood width; Latewood density; Latewood width; NHD/WSL; Northern Hemispheric Dendroclimatological Network; Ring width; TREE; Tree ring sampling; WDD  (39)
  • Cell & Developmental Biology
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Keywords
Publisher
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  • 11
    Electronic Resource
    Electronic Resource
    Präparative Chromatographie (1954)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 26 (1954), S. 609-610 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Es wird eine große unterteilte Chromatographiersäule beschrieben, mit der an einer Füllung aus Cellulose-Pulver, z. B. 70 g eines Gemisches der vorgereinigten Alkaloidchloride aus Calebassencuraro, in einem Durchlauf in die Hauptfraktionen aufgetrennt werden können.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330261106
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  • 12
    Electronic Resource
    Electronic Resource
    Early development of the kelp fly, Coelopa frigida (Diptera). II. Morphology of cleavage and blastoderm formationDedicated to Prof. Dr. F. Seidel in commemoration of his 75th birthday. (1973)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 141 (1973), S. 235-255 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Cleavage and blastoderm formation in Coelopa frigida are extremely rapid developmental processes. In short (6-7 minutes) successive cell cycles, nuclei multiply and spread out through the egg. The movement seems to be aided by endoplasmic vesicles and cisternae which are in direct contact with the nuclear membrane. The first cells to separate from the egg plasmodium in early superficial cleavage stages are the pole cells.Precursor material from multivesicular bodies forms the pole cell membranes. The primary nuclei from the posterior pole region are removed from the blastoderm by the pole cell segregation. Blastoderm nuclei from the regions adjacent to the posterior pole migrate into the residual periplasm after pole cell segregation has been completed and constitute the blastoderm nuclei in that region of the egg. Nucleoli are not revealed during internal cleavage. They appear in pole cells shortly after their segregation. The generation time of the blastoderm nuclei increases after the twelfth cleavage. Concurrently, nucleoli form in the blastoderm nuclei and permanent cell membranes separate individual blastoderm cells. After blastoderm cells have been separated from each other, they remain in contact with the interior yolk sac by means of cytoplasmic canals. This contact is maintained at least during the early phases of blastokinesis. Observations on nuclear migration and rapid membrane formation are discussed as examples of protein assembly from subunits as an alternative to de novo protein synthesis in early stages of development.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051410210
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  • 13
    Electronic Resource
    Electronic Resource
    Evaluation of standard thermodynamic parameters for the sorption of n-hexane and methanol in zeolites (1990)
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 13 (1990), S. 298-303 
    Details
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Adsorption isotherms for n-hexane and methanol in mordenite and ZSM5 in the temperature range from 323 K to 473 K were found to be of type 1. The adsorbate-adsorbent interaction (C1) and adsorbate-adsorbate interaction (C2) wee computed according to Bradley and Wilkins model, whereas the Rees and Williams model predicts the adsorption characteristics. Finally, the thermodynamic parameters such as ΔGo, ΔSo, ΔHo, K, K+ have been evaluated for the sorption of n-hexane in mordenite and ZSM5.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ceat.270130140
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  • 14
    Electronic Resource
    Electronic Resource
    Particle collection in small laboratory cyclones as a basis for the design of large-scale cyclonesPaper presented by H. Büttner at the “Jahrestreffen der Verfahrens-Ingenieure”, Freiburg September 30 to October 2, 1987. (1989)
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 12 (1989), S. 295-301 
    Details
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Grade efficiencies must be measured in order to characterize particle collection in cyclones. For real, irregularly shaped partcles, the grade efficiencies depend on the shape and orientation of the particles and the flow around them. Therefore, the collection characteristics of cyclones should be defined in relation to spherical particles. Deviations occurring on the use of real, irregularly shaped dusts can then be attributed to a material influence. A fast and accurate measuring technique to determine the collection characteristic for spherical particles is described, followed by the presentation of results of extensive investigations on small model cyclones. A similarity relationship is presented. The validity of this relationship was confirmed by investigations with similar, larger cyclones.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ceat.270120141
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  • 15
    Electronic Resource
    Electronic Resource
    Investigation of a wet dust scrubber with a pneumatic nozzle: Dust collection based on turbulent diffusionPaper presented by P. Centner at the “Jahrestreffen der Verfahrens-Ingenieure”, Hannover, September 21 to 23, 1988. (1989)
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 12 (1989), S. 439-444 
    Details
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The “nozzle scrubber” is a wet scrubber in which the scrubbing water is dispersed in dust laden gas stream by means of one or more pneumatic nozzle. This scrubber is distinguished by an excellent collection efficiency for submicron dust at an unusually low energy and water consumption. So far, the physical effects affecting the separation cannot be explained by a well-defined theory. Therefore, it is sensible to investigate the collection efficiency with regard to the mechanisms of inertial impaction, turbulent diffusion and coalescence induced by turbulence. The experimental equipment is of a very simple design. A light scattering device was used to measure the particle distributions. In addition, electron micrographs were analyzed to obtain information about the submicron particles. The influence of operating parameters on grade efficiency has been demonstrated by their systematic variation. The contribution of turbulent diffusion to the collection efficiency has been confirmed; nevertheless, grade efficiencies were also measured when inertial impaction prevailed.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ceat.270120163
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  • 16
    Electronic Resource
    Electronic Resource
    Anodic dehalogenation of 1,2-dichloroethane in aqueous electrolytesDedicated to Professor Dr. Karl-Hans Simmrock on the occasion of his 60th birthday (1990)
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 13 (1990), S. 371-375 
    Details
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A solution of 0.1 M 1,2-dichloroethane in 1 M H2SO4 was anodically converted to CO2, Cl2 and HCIO4 as the main products at smooth platinum. The current efficiency for CO2 exceeds 60% at low current densities, while HClO4 is obtained with about 20% current efficiency. Chlorinated products such as 1,2′,2-trichloroethane are formed in negligible amounts. Platinum plays a distinctive role as anode material and shows a reaction limited anodic prewave. Our experimental findings lead to a mechanism, whereby DCE is initially hydroxylated to form chloroacetaldehyde chlorohydrin which releases HCl and becomes rapidly further oxidized to monochloroacetic acid. The cleavage of the C—C bond proceeds via its anodic decarboxylation. Possible practical applications in the field of anodic water purification and in the direct electrosynthesis of vinyl chloride are discussed.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ceat.270130150
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  • 17
    Electronic Resource
    Electronic Resource
    Extracellular matrix: Differential influence on growth and biosynthesis patterns of vascular smooth muscle cells from SHR and WKY rats (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 141 (1989), S. 267-274 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Smooth muscle cells from spontaneously hypertensive rats (SHR) elaborated extracellular matrix (ECM) material in culture that was more stimulatory to growth of cells from normotensive (WKY) animals than their own matrix. Both cell types elaborated ECMs consisting of glycoconjugate material (proteoglycans, glycopeptides) elastin, and collagens, but there were differences in the relative proportions of the compounds synthesized. Cells from SHR produced an ECM richer in elastin than that synthesized by WKY derived cells (∼19% vs. 11%, respectively). However, the latter elaborated ECMs containing more (∼45% for WKY vs. 29% for SHR) glycoconjugate material than the former. The lysyloxidase-mediated crosslinking of elastin was more rapid in cultured cells from SHR animals than from their normotensive counterparts and may be as a consequence of increased substrate (tropoelastin) availability in ECMs from SHR animals. The relative proportions and sulphate levels of the glycosaminoglycans associated with matrix material elaborated by the two cell types were similar. Radiolabelled glycoconjugate material was degraded by cells (SHR/WKY) when they were plated upon pre-formed ECMs, and their patterns of synthesis of new matrix was markedly altered under such conditions. New matrix material elaborated by cells plated upon ECM-coated dishes consisted predominantly of glycopeptide and proteoglycan matrix components. Epidermal growth factor promoted the incorporation of [3H]-thymidine into DNA by quiescent cells, and this was also markedly stimulated when cells were plated onto ECM-coated plasticware rather than onto plastic substratum.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1041410206
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  • 18
    Electronic Resource
    Electronic Resource
    Regulation of B lymphocyte replication and maturation (1982)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 19 (1982), S. 315-332 
    Details
    ISSN: 0730-2312
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcb.240190403
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  • 19
    Electronic Resource
    Electronic Resource
    Heparan sulfate primed on β-D-xylosides restores binding of basic fibroblast growth factor (1995)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 57 (1995), S. 173-184 
    Details
    ISSN: 0730-2312
    Keywords: heparin ; proteoglycans ; glycosaminoglycans ; receptor-binding ; heparinase ; chinese hamster ovary cell mutants ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Heparan sulfate proteoglycans (HSPG) are obligatory for receptor binding and mitogenic activity of basic fibroblast growth factor (bFGF). Mutant Chinese hamster ovary cells (pgsA-745) deficient in xylosyltransferase are unable to initiate glycosaminoglycan synthesis and hence can not bind bFGF to low- and high-affinity cell surface receptors. Exposure of pgsA-745 cells to β-D-xylopyranosides containing hydrophobic aglycones resulted in restoration of bFGF binding in a manner similar to that induced by soluble heparin or by heparan sulfate (HS) normally associated with cell sulfate. Restoration of bFGF binding correlated with the ability of the β-D-xylosides to prime the synthesis of heparan sulfate. Thus, both heparan sulfate synthesis and bFGF receptor binding were induced by low concentrations (10-30 μM) of estradiol-β-D-xyloside and naphthyl-β-D-xyloside, but not by cis/trans-decahydro-2-naphthyl-β-D-xyloside, which at low concentration primes mainly chondroitin sulfate. The obligatory involvement of xyloside-primed heparan sulfate in restoration of bFGF-receptor binding was also demonstrated by its sensitivity to heparinase treatment and by the lack of restoration activity in CHO cell mutants that lack enzymatic activities required to form the repeating disaccharide unit characteristic of heparan sulfate. Xyloside-primed heparan sulfate binds to the cell surface. Restoration of bFGF receptor binding was induced by both soluble and cell bound xyloside-primed heparan sulfate and was abolished in cells that were exposed to 0.5-1.0 M NaCl prior to the bFGF binding reaction. These results indicate that heparan sulfate chains produced on xyloside primers behave like heparan sulfate chains attached to cellular core proteins in terms of affinity for bFGF and ability to function as low-affinity sites in a dual receptor mechanism characteristic of bFGF and other heparin-binding growth promoting factors.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcb.240570202
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  • 20
    Electronic Resource
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    A combined pseudoreplica-immunochemical technique for research and diagnostic Virology (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Microscopy Research and Technique 21 (1992), S. 59-64 
    Details
    ISSN: 1059-910X
    Keywords: Vesicular stomatitis virus ; Cytomegalovirus ; Herpes simplex virus ; Human parvovirus B19 ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Natural Sciences in General
    Notes: Pseudoreplica and immunochemical techniques were combined in a single protocol for identification of virus in research and clinical specimens. Stock preparations of vesicular stomatitis virus (VSV), cytomegalovirus (CMV), and herpes simplex virus (HSV) were used to develop the technique. Traditional pseudoreplicas of viral stock solutions were prepared but not negatively stained. The virus was then immunolabeled in two stages. Virus-specific polyclonal antisera were used in the first stage; colloidal gold congugated antibodies were used as indicator antibody in the second stage. After immunolabeling, the grids were negatigvely stained. As a demonstration of the clinical usefulness of this approach, it was employed to antenatally identify human parvovirus B19 particles in ascites from a 22 week gestational fetus with nonimmune hydrops fetalis. The combined pseudoreplica-immunochemical approach offers several advantages over both the pseudoreplica and immunochemical methods when used in isolation. Advantages include relative purification of samples, concentration of virus, morphological preservation, and enhanced diagnostic specificity.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jemt.1070210109
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