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  • Polymer and Materials Science  (9)
  • Biochemistry and Biotechnology  (4)
  • Opioid antagonists  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Distribution and characterization of two putative endogenous opioid antagonist peptides in bovine brain
    Amsterdam : Elsevier
    Peptides 8 (1987), S. 657-662 
    Details
    ISSN: 0196-9781
    Keywords: Bovine brain ; Distribution ; FMRF-NH"2-like peptides ; HPLC analysis ; Opioid antagonists ; Radioimmunoassay
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0196-9781(87)90041-6
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  • 2
    Electronic Resource
    Electronic Resource
    Effects of mammalian FMRF-NH"2-related peptides and IgG from antiserum against them on aggression and defeat-induced analgesia in mice
    Amsterdam : Elsevier
    Peptides 12 (1991), S. 235-239 
    Details
    ISSN: 0196-9781
    Keywords: Aggression ; Defeat ; FMRF-NH"2-related peptides ; Opioid analgesia ; Opioid antagonists ; Stress-induced analgesia
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0196-9781(91)90005-A
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  • 3
    Electronic Resource
    Electronic Resource
    IgG from antiserum against endogenous mammalian FMRF-NH"2-related peptides augments morphine- and stress-induced analgesia in mice
    Amsterdam : Elsevier
    Peptides 10 (1989), S. 741-745 
    Details
    ISSN: 0196-9781
    Keywords: FMRF-NH"2-like peptides ; Immobilization ; Morphine ; Nociception ; Opioid analgesia ; Opioid antagonists ; Stress-induced analgesia
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0196-9781(89)90106-X
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  • 4
    Electronic Resource
    Electronic Resource
    Charge transfer complexes of polyimines containing trans-1,2-bis-9-carbazolylcyclobutane (1992)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 30 (1992), S. 1953-1959 
    Details
    ISSN: 0887-624X
    Keywords: charge transfer complexes ; carbazole-containing polyimines ; electron-acceptors ; solid-state NMR ; decomplexation ; complex conformation ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Polyimines containing trans-1,2-bis-9-carbazolylcyclobutane (CzD) and a spacer of a variable number of methylene groups (3-10 and 12) were synthesized from the diformylated CzD and the corresponding aliphatic diamine. The charge transfer complexes (CTCs) of these polyimines with electron-acceptors such as tetracyanoethylene (TCNE) and 2,4,7-trinitro-9-fluorenone (TNF) were analyzed in solution and in the solid state using electronic and CP-MAS 13C-NMR spectra. Model studies indicate that TCNE does not form a stable complex in the solid state with CzD, while TNF forms a complex in the molar ratio of 1 : 1. Solid-state CTCs of the polyimines with either acceptor retain some solvent which helps in formation of some supramolecular organization. After the solvent is eliminated the CTCs are amorphous and do not show decomplexation. Cross-polarization experiments and T1ρH measurements in the solid-state NMR spectra demonstrate that the polymer CTCs are very mobile, with a solution-like behavior. © 1992 John Wiley & Sons, Inc.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1992.080300918
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  • 5
    Electronic Resource
    Electronic Resource
    Measurement and simulation of the morphological development of filamentous microorganisms (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 39 (1992), S. 44-48 
    Details
    ISSN: 0006-3592
    Keywords: directional growth ; modeling ; morphology ; pellet formation ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Growth of Streptomyces tendae was investigated in submerged culture. Images of several mycelia were analyzed by means of an image-processing system. The studies revealed that tip growth angles and branching outgrowth angles could be regarded as normally distributed. Based on these results, a random model for directional growth of hyphal tips as well as directional growth of branches is proposed. This model shows curved elongation of hyphal tips, so that the morphological development of a mycelium up to the formation of a pellet is predicted, similar to that observed in nature.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260390108
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  • 6
    Electronic Resource
    Electronic Resource
    Mathematical model for apical growth, septation, and branching of mycelial microorganisms (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 39 (1992), S. 49-58 
    Details
    ISSN: 0006-3592
    Keywords: mycelial growth ; model ; simulation ; streptomycetes ; fungi ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A mathematical model for apical growth, septation, and branching of mycelial microorganisms is presented. The model consists of two parts: the determinstic part of the model is based on fundamental cellular and physical mechanisms; it represents the kinetics for growth of hyphal tips and septation of apical as well as intercalary compartments. In regard to random occurrences of hyphal growth and branching, the stochastic part deals with branching processes, tip growth directions, and outgrowth orientations of branches. The model can explain the morphological development of mycelia up to the formation of pellets. The results, as predicted by the model, correspond very closely to those observed in experiments. In addition, some unmeasured states can be ascertained, such as the distribution functions of hyphal length (biomass) and tips along pellet radii.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260390109
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  • 7
    Electronic Resource
    Electronic Resource
    Factors influencing fungal degradation of lignin in a representative lignocellulosic, thermomechanical pulp (1980)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 22 (1980), S. 65-77 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: This research examined culture parameters influencing the rate of degradation of lignin in lignocellulosic substrates by the Basidiomycete Phanerochaete chrysosporium. Thermomechanical pulps prepared from western hemlock (Tsuga heterophylla) and red alder (Alnus rubra) were chosen as model substrates. Degradation of lignin in shallow, liquid-phase, stationary cultures was 10 times as rapid as in agitated cultures. Lignin degradation was at least 50% more rapid in cultures under 100% O2 than in those under air. Addition of 0.12% nutrient N (dry pulp basis) increased the rate of lignin degradation two- to fivefold; 1.2% added N at first suppressed, then stimulated, lignin degradation. Lignin in the alder pulp was degraded over five times as rapidly as in the hemlock pulp. Addition of glucose (35% of dry pulp) to the pulps containing 0.12% added N completely suppressed polysaccharide depletion during two weeks, but did not influence lignin degradation. The maximum rate of lignin degradation was 3%/day over a two-week incubation, or approximately 2.9 mg/mg fungal cell protein/day. The influence of the examined parameters was in complete accord with those found earlier for synthetic 14C-lignin metabolism by P. chrysosporium.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260220106
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  • 8
    Electronic Resource
    Electronic Resource
    Selective dehydrogenation of progesterone in the presence of 11-keto progesterone (1981)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 23 (1981), S. 2881-2884 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260231221
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  • 9
    Electronic Resource
    Electronic Resource
    Poly(ethylene oxide) electrolytes containing mixed salts (1993)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 31 (1993), S. 157-163 
    Details
    ISSN: 0887-6266
    Keywords: polyelectrolytes, PEO-based, conductivity enhancement by mixed salts in solutions of ; conductivity, ionic, of PEO-based polyelectrolytes, mixed-salt enhancement of ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: An unusual conductivity enhancement occurs in PEO-based ZnBr2/LiBr electrolytes of composition, [xZnBr2 + (1 - x)LiBr](PEO)16 with x = 0.00, 0.05, 0.50, 0.75, 1.00. The conductivity of the mixed-salt electrolytes is higher than that of either pure salt electrolyte. The highest conductivity, observed for x = 0.5, is two orders of magnitude higher than that of pure LiBr(PEO)16 and one order higher than ZnBr2(PEO)16. In contrast, the conductivity of mixed Mg (CIO4)2/LiCIO4 electrolytes, [xMg(CIO4)2 + (1 - x) LiCIO4](PEO)16 where x = 0.00, 0.20, 0.50, 0.80, 1.00, increases monotonically with the mole fraction of the higher conductivity component, LiCIO4(PEO)16. The conductivity and differential scanning calorimetry (DSC) results suggest that the conductivity enhancement in the ZnBr2/LiBr electrolytes results from a change in charge carrier type and concentration, whereas the conductivity change in the Mg(CIO4)2/LiCIO4 electrolytes arises from a change in the microscopic viscosity of the electrolytes. © 1993 John Wiley & Sons, Inc.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/polb.1993.090310204
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  • 10
    Electronic Resource
    Electronic Resource
    Competition between micellization and adsorption of diblock copolymers in a colloidal system (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 58 (1995), S. 265-269 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Significant adsorption of polystyrene-poly(ethylene oxide) (PS-PEO) diblock copolymers onto PS latex particles in an aqueous dispersion is accomplished through suppression of micelle formation by adding tetrahydrofuran (THF) as a cosolvent. We add THF, a good solvent for the micelle core, to weaken the micelle and allow free chains for adsorption to the colloidal particles. Choosing a PS colloidal particle as the adsorption substrate (thus the adsorbed PS block can fully wet the subsurface), we eliminate the complications which arise from micelle formation on the colloidal surface. Since the PS particles swell in the mixed solvent, the adsorbed PS block may penetrate into the swollen latex core, which is favored for entropic reasons. A subsequent water quench of the system to a low THF solution shrinks the PS particle to its original size while retaining most of the adsorbed polymers. The adsorbed chains cannot be removed by adding surfactants or raising temperature to 90°C, indicating that the adsorbed layer is tightly attached to the surface due to kinetic hinderance of the chains in a confined environment. Neutron scattering experiments is being carried out to settle whether the PS penetrates the PS particle. © 1995 John Wiley & Sons, Inc.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1995.070580205
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