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  • Wiley-Blackwell  (35)
  • Cambridge University Press  (20)
  • prel. rep. of the Geophys. Inst., Univ. of Alaska
  • 2000-2004  (2)
  • 1980-1984  (54)
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  • 1
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    Workshop on Agroforestry for Rural Communities' held at the University of Chiang Mai, Thailand, during 12–16 November 1979 (1980)
    Cambridge University Press
    Details
    Publication Date: 1980-01-01
    Print ISSN: 0376-8929
    Electronic ISSN: 1469-4387
    Topics: Biology
    Published by Cambridge University Press
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  • 2
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    Complementarity Between Environment and Development Processes (1984)
    Cambridge University Press
    Details
    Publication Date: 1984-01-01
    Description: Environmental consequences of economic growth and development became an area of major national concern primarily in industrialized countries during the nineteen-sixties. Undesirable side-effects of development became highly visible in terms of air, water, land, and noise, pollution, and people in such countries became concerned with the continuing environmental degradation and impacts on their health and life-style. The emphasis, however, was primarily on the physical environment.Two problems received much attention: the constantly increasing resource-use in the developed countries, and population explosion in the less-developed countries. Many doomsday scenarios were put forward, and there was a clamour for ‘no-growth’ in the West. This created much apprehension in the less-developed countries, because development was urgently needed to improve the living-standards of their citizens. Thus, ‘pollution of poverty’ became an important issue at the UN Conference on the Human Environment, which was held at Stockholm in 1972.
    Print ISSN: 0376-8929
    Electronic ISSN: 1469-4387
    Topics: Biology
    Published by Cambridge University Press
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  • 3
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    Major Requirements for Environmental Education (1982)
    Cambridge University Press
    Details
    Publication Date: 1982-01-01
    Description: Environment can be better managed only if people have understanding and appreciation of it. This can be achieved only through environmental education, and that is one reason why environmental education is so important and essential at present. Another is to understand our complete dependence on The Biosphere as our only life-suppert and safeguard it against increasing population-pressures.The basic aim of environmental education is to make individuals and communities understand the complex nature of natural and Man-made environments resulting from the interaction of their biological, physical, social, economic, and cultural, aspects. There are several major requirements which are likely to contribute to its success. These are interdisciplinarity, interrelatedness, flexibility, non-dogmatism, problem anticipation, emphasis on problem-solving, and ‘practise what you preach’.Environmental education alone and by itself will not solve all environmental problems, but environmental education is a prerequisite for better environmental management and, ultimately, for safeguarding The Biosphere.
    Print ISSN: 0376-8929
    Electronic ISSN: 1469-4387
    Topics: Biology
    Published by Cambridge University Press
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  • 4
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    Indian Science Congress, 68th Session, Focal Theme: Impacts of Development of Science and Technology on Evironment, held at Banaras Hindu University, Varanasi, India, During 3–7 January 1981 (1981)
    Cambridge University Press
    Details
    Publication Date: 1981-01-01
    Print ISSN: 0376-8929
    Electronic ISSN: 1469-4387
    Topics: Biology
    Published by Cambridge University Press
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  • 5
    Electronic Resource
    Electronic Resource
    Conformational analysis of the milk oligosaccharides (1980)
    New York : Wiley-Blackwell
    Biopolymers 19 (1980), S. 1555-1566 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Possible conformations of lacto-N-tetraose, lacto-N-neotetraose, related disaccharides, and other milk oligosaccharides have been studied by an energy-minimization procedure using empirical potential functions. Lacto-N-tetraose favors a “curved” conformation, while lacto-N-neotetraose favors an approximately “straight” conformation. These two conformations differ mainly in the position of the terminal galactose residue with respect to the rest of the molecule. This difference explains the greater strength of lacto-N-neotetraose compared with lacto-N-tetraose in its ability to inhibit the cross-reaction of blood group P1 fractions with Type XIV pneumococcal antipolysaccharide. Although the favored conformation of lacto-N-tetraose (inactive) agrees with the model proposed by the earlier workers, that for lacto-N-neotetraose (active) differs. The favored conformations for the disaccharides galactose-β(1-4)-N-acetylglucosamine, galactose-β(1-3)-N-acetylglucosamine, and lactose are similar in overall shape, differing only in the nature and orientation of the side groups. This explains their nearly equal inhibitory activity. These theoretical models also explain the increased activity of lacto-N-fucopentaose I over that of lacto-N-tetraose and the relative activities of the substituted lactoses. The present studies suggest that it is the overall shape of the molecule which is important for activity, rather than the terminal β(1-4)-linked galactose residue alone.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.1980.360190811
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  • 6
    Electronic Resource
    Electronic Resource
    Conformational analysis of some mannose-containing and milk oligosaccharides: Correlation of their shape with inhibitory properties in antigen/antibody interactions (1981)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 20 (1981), S. 99-121 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Possible conformations of two mannotetraoses and several milk oligosaccharides have been studied by an energy minimization procedure using semi-empirical potential functions. Changes in the terminal residue at the reducing end (cyclic to acyclic form) of these molecules do not affect the favored conformations of the remaining oligosaccharide moiety. However, differences in the overall shape of the native and reduced forms of the mannotetraose, mannose α(1-3) mannose α(1-2) mannose α(1-2) mannose are much less marked than between the native and reduced forms of lacto-N-tetraose. These differences are related to the effectiveness of the native forms as inhibitors of antibodies produced using synthetic antigens. Changes in the linkage of the residues at the nonreducing end of these molecules affect significantly the overall shape of these molecules. These differences also are related to their effectiveness as inhibitors. In the fucose-containing milk oligosaccharides the additional fucose residues only restrict the orientation of the backbone tetrasaccharide and do not push it into a totally new conformation. The fucose residues come on a surface of the molecule which is away from the region which may be important for binding. The present studies show that it is the overall shape of the molecule which is important in determining its inhibitory properties and give information as to how best to use the immune method for identification of unknown oligosaccharide sequences by specially prepared antibodies.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560200111
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  • 7
    Electronic Resource
    Electronic Resource
    Aqueous polymerization of methyl methacrylate using quinoline-sulfur dioxide complex and tetrahydrofuran-sulfur dioxide complex as initiators (1980)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 181 (1980), S. 1331-1338 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Aqueous polymerization of MMA was kinetically studied using separately two complexes of sulfur dioxide as initiators, namely, quinoline-sulfur dioxide (Q-SO2) complex and tetrahydrofuran-sulfur dioxide (THF-SO2) complex. In each case the initiator exponent was 0,5 and the monomer exponent was 1,5. Kinetic data, inhibitory effect of hydroquinone, and incorporation of sulfoxy end groups in the polymers indicate a radical mechanism of polymerization with first order dependence on monomer for the rate of initiation while termination appears to take place bimolecularly.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1980.021810613
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  • 8
    Electronic Resource
    Electronic Resource
    Photopolymerization of methyl methacrylate in bulk and in pyridine diluted systems with pyridine-sulfur dioxide complex alone and in combination with benzoyl peroxide as photoinitiators (1981)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 182 (1981), S. 1985-1996 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: It was found that the Py-SO2 complex (4-140 mmol·1-1) initiates the photopolymerization of methyl methacrylate (MMA) in bulk at 40°C, the initiator exponent, kp2/kt, and the monomer exponent being 0,30, 1,27·10-2 1·mol-1·s-1, and 1,00, respectively. The radical generation is followed by an in-situ initiator-monomer complexation reaction. The kinetics of the photopolymerization of MMA were also studied using the (Py-SO2)-complex (0,01-0,35 mol·1-1) in redox combination with benzoyl peroxide (BZ2O2) (2 - 110 mmol·1-1) as initiator in the presence of variable concentrations of pyridine (1 - 7 mol·1-1). The initiation depends on the concentrations of all the reactants in the system, and the reaction order with respect to either component of the redox pair is equal to 0,5 or reasonably less than 0,5, depending on whether or not the initiating component in question is present in the system in excess compared to its counterpart in the redox combination. Variable monomer exponents, largely dependent on [BZ2O2], characterize the redox photopolymerization process. The monomer exponent value, unity at [BZ2O2] = 0, progressively decreases with increasing [BZ2O2] (non-ideal kinetics). The rate enhancing effect of the solvent pyridine is more prominent at higher [BZ2O2]. The kinetic nonidealities in each case were further analyzed and interpreted in terms of (a) primary radical termination and (b) degradative initiator transfer. Relative effects of the variation of the level of dilution with pyridine were also analyzed.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1981.021820711
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  • 9
    Electronic Resource
    Electronic Resource
    Cationic vinyl polymerization by the initiator system diethylzinc/phosphoryl chloride (1980)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 181 (1980), S. 1629-1635 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Et2Zn in combination with POCl3 induces the cationic polymerization of isobutyl vinyl ether and N-vinyl carbazole at ambient temperature. The rate is directly proportional to [Et2Zn]. [POCl3] up to a mole ratio of unity of the components, and thereafter it decreases. At a fixed ratio of [Et2Zn]/[POCl3] the rate is second order in [Isobutyl vinyl ether]. Rate and [η] decrease in the presence of basic additives, pyridine, and water. Unlike the system Et3Al/POCl3, the present combination does not lead to any stereoregular poly(isobutyl vinyl ether) at ambient or lower temperatures. A cationic mechanism is proposed and an appropriate kinetic scheme is suggested.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1980.021810807
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  • 10
    Electronic Resource
    Electronic Resource
    Cationic copolymerization of N-vinylcarbazole with divinylbenzene (1981)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 182 (1981), S. 261-264 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1981.021820131
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