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  • 1985-1989  (11)
  • 1986  (11)
Source
Material
Years
  • 1985-1989  (11)
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Inactivation of spinach ribulose-1,5-bisphosphate carboxylase/oxygenase by 1-hydroxy-3-buten-2-one phosphate (1986)
    s.l. : American Chemical Society
    Biochemistry 25 (1986), S. 4699-4704 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00364a037
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Plant regeneration from seedling cotyledons, leaves and petioles of Glycine clandestina (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 68 (1986), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A B5-based culture medium containing 4.4 μM N6-benzyladenine (BA) and 0.025 μM indole-3-butyric acid (IBA) induced callus from seedling cotyledons, leaves and petioles of Glycine clandestina Wendl. Only hard, green, nodular callus tissues were capable of producing shoot buds and of five accessions examined, only two (G1231 and G1145) were morphogenetically competent. Callus that did not regenerate could often be induced to produce shoot buds after subculture to fresh regeneration medium. Buds developed into shoots following transfer of callus to a medium containing 0.9 μM BA and 0.025 μM IBA. Shoots were rooted in hormone-free, half-strength B5 medium supplemented with 0.2% activated charcoal. The application of these results is discussed in relation to somatic hybridisation between the cultivated soybean and wild Glycine species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1986.tb06606.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Earth albedo and the orbit of Lageos (1986)
    Springer
    Celestial mechanics and dynamical astronomy 38 (1986), S. 233-296 
    Details
    ISSN: 1572-9478
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The long-period perturbations in the orbit of Lageos satellite due to the earth's albedo have been found using a new analytical formalism. The earth is assumed to be a sphere whose surface diffusely reflects sunlight according to Lambert's law. Specular reflection is not considered. The formalism is based on spherical harmonics; it produces equations which hold regardless of whether the terminator is seen by the satellite or not. Specializing in the case of a realistic zonal albedo shows that Lageos' orbital semimajor axis changes periodically by only about a centimeter and the eccentricity by two parts in 105. The longitude of the node increases secularly by about 6×10−4 arc sec yr−1. The effect considered here can explain neither the secular decay of 1.1 mm day−1 in the semimajor axis nor the observed along-track variations in acceleration of order 2×10−12 ms−2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01231110
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    Paper (German National Licenses)
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  • 4
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    Unknown
    Pelayo H. Fernández, "La Paradoja en Ortega y Gasset" (Book Review) (1986)
    Philadelphia : Periodicals Archive Online (PAO)
    Hispanic Review. 54:4 (1986:Autumn) 481-483 
    Details
    ISSN: 0018-2176
    Topics: Romance Studies
    Notes: REVIEWS
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:1098-1986-054-04-000019
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  • 5
    Electronic Resource
    Electronic Resource
    Lack of a direct effect of the autonomic nervous system on glucose-stimulated gastric inhibitory polypeptide (GIP) secretion in man (1986)
    Springer
    Digestive diseases and sciences 31 (1986), S. 929-935 
    Details
    ISSN: 1573-2568
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To determine whether the autonomic nervous system has a direct effect on GIP secretion, six normal subjects received a 4-hr intraduodenal perfusion of glucose (225 mg/min) and polyethylene glycol on four successive days. During the latter 2 hr, either normal saline, propranolol, phentolamine, or atropine were infused intravenously. Glucose absorption was calculated by measuring glucose and polyethylene glycol following luminal aspiration distal to the perfusion site. Basal and peak or nadir values in the saline study of plasma glucose, insulin, glucagon, and GIP were similar to the other three studies prior to autonomic blockade. During the latter 2 hr of the glucose perfusion, the plasma glucose and glucagon responses to saline did not differ from responses to the three blocking agents. Phentolamine but not atropine or propranolol resulted in a greater insulin response compared to saline (3247±762 vs 1348±388 μU/ml/120 min,P〈0.01). GIP was not significantly affected by phentolamine (18,146±4574), propranolol (7585±5854), or atropine (15,797±6297) compared to saline (11,717±5204 pg/ml/120 min). Glucose absorption was unaffected by infusions of saline, phentolamine, and propranolol, but was increased following atropine infusion (5841±1120 vs 1044±808 mg/120 min,P〈0.02). There appears to be no direct effect of the autonomic nervous system on glucose-induced secretion of GIP.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01303213
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Diffusion of bound water in wood (1986)
    Springer
    Wood science and technology 20 (1986), S. 309-328 
    Details
    ISSN: 1432-5225
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary Choong's (1963) data for isothermal sorption of water vapor by wood are used to compute pressures, chemical potentials, and entropies of water in the wood specimens of his nonisothermal mass equilibrium experiments. Entropies of both the bound water and water vapor were reasonably constant. A balance existed between thermal diffusion and mass diffusion, as indicated by gradients in temperature and chemical potential. This balance also is suggested by opposing gradients in spreading pressure and vapor pressure. Equal chemical potentials showed that the vapor and bound water were in equilibrium. The model proposed by Siau (1980) for nonisothermal diffusion is consistent with these results. Expressions are given for the two unknown parameters in this model: moisture conductivity and heat of transfer. The constant entropy of water vapor is used to show that the heat of transfer exceeds the activation energy for bound water diffusion by about 25 percent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00351584
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  • 7
    Electronic Resource
    Electronic Resource
    Diffusion of bound water in wood (1986)
    Springer
    Wood science and technology 20 (1986), S. 125-135 
    Details
    ISSN: 1432-5225
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary Fick's law states that during steady-state diffusion, moisture flux is proportional to the gradient in moisture concentration, making concentration gradient the driving force for diffusion. Although Fick's law permits convenient comparisons between predicted and measured moisture contents, fundamental and experimental difficulties with it have been reported. In this paper, the dependence of spreading pressure on vapor pressure and temperature is developed. This information is used to show that gradients in spreading pressure and chemical potential are not proportional. Spreading pressure gradient is considered the correct driving force because the associated transport law can be derived from first principles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00351024
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  • 8
    Electronic Resource
    Electronic Resource
    Diffusion of bound water in wood (1986)
    Springer
    Wood science and technology 20 (1986), S. 235-251 
    Details
    ISSN: 1432-5225
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary A model for isothermal bound water diffusion in wood is derived from Babbitt's (1950) analysis of diffusion in adsorbing solids. Calculations of the energy required for water molecules to become dissociated from their sites is identified as one component of the activation energy for diffusion. Consideration of the resistance to diffusion leads to a second component of activation energy associated with overcoming the attraction of water molecules for themselves. Also, an approximate expression for the resistance coefficient is developed. These results are combined into a transport model for bound water. The model shows that equations for bound water movement based on fluid mechanics (Babbitt 1950) and thermodynamics (Katchalsky, Curran 1965) are identical when the driving force for diffusion is defined as the moisture flux per unit transport coefficient. Activation energies and diffusion coefficients derived from the model compare favorably with literature values.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00350982
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  • 9
    Electronic Resource
    Electronic Resource
    Polymorphonuclear leukocyte, T-lymphocyte, and natural killer cell activities in elderly nursing home residents (1986)
    Springer
    European journal of clinical microbiology & infectious diseases 5 (1986), S. 468-471 
    Details
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02075713
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Dynamic behavior of a single screw plasticating extruder part I: Experimental study (1986)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 26 (1986), S. 144-151 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    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: The dynamic responses of a 2-1/2 inch single screw plasticating extruder and extrusion line were investigated. Step changes in screw speed, take-up speed, back pressure, and processing materials were used to determine the transient responses of barrel pressures, die pressure, melt temperature, and extrudate thickness. Dynamic responses of the entire extrusion line can be explained by the flow mechanism of the extruder and the logical properties of the polymer used. A capillary rheometer was also used to determine if it could simulate pressure responses in the extruder for screw speed changes. Results showed that capillary rheometer was helpful in estimating the short term pressure responses in the die.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760260206
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