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  • 1
    Electronic Resource
    Electronic Resource
    A rapid laboratory method for developing contact prints of stained polyacrylamide gelsContribution from Soil, Water, and Air Sciences, USDA-ARS, Western Region, Akron, Colorado. (1983)
    Weinheim : Wiley-Blackwell
    Electrophoresis 4 (1983), S. 258-259 
    Details
    ISSN: 0173-0835
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: A rapid laboratory method for processing quality color prints of high resolution two-dimensional polyacrylamide gels has been developed to obtain photographs for data storage or for the presentation of results in poster formats. This method involves the contact printing of a gel directly onto the film so that the final print will be an exact duplication of the size and color of the gel. A variety of papers or films can be used to produce color prints or transparencies. This method has been adapted for use with a color or with a black and white photographic enlarger.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/elps.1150040315
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Pulse-rate effects in the photochemistry of gas-phase bromobenzene ions. A study of ion relaxation mechanisms (1983)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 87 (1983), S. 3105-3108 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100239a030
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  • 3
    Electronic Resource
    Electronic Resource
    Collisional relaxation of iodobenzene ions (1983)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 87 (1983), S. 1924-1928 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100234a019
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Vibrational spectroscopy and photodissociation properties of ions as determined by two-laser photodissociation techniques (1983)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 87 (1983), S. 3755-3758 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100242a036
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Synthesis and structural characterization of bis[bis(dimethylphenylphosphine)dichlororhenium](n+) ion (n = 0-2): a series of complexes processing metal-metal bond orders of 4, 3.5, and 3 and the dependence of bond length upon bond order (1983)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 105 (1983), S. 4950-4954 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00353a018
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  • 6
    Electronic Resource
    Electronic Resource
    Automatic postural responses in the cat: Responses to headward and tailward translation (1983)
    Springer
    Experimental brain research 50 (1983), S. 45-61 
    Details
    ISSN: 1432-1106
    Keywords: Postural reflexes ; Unexpected postural perturbations ; Electromyographic activity ; Hind limb and forelimb muscles ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary EMG responses, vertical and A-P shear forces and kinematics of “automatic postural responses” to unexpected translational perturbations in the headward and tailward directions were studied in cats. Muscles acting on the major joints of the forelimbs and hindlimbs were studied. Movement of the animals in response to perturbation were highly stereotyped and consisted of two phases: (1) motion of the feet during platform movement while the trunk remained relatively stationary followed by (2) active correction of posture by movement of the trunk in the direction of perturbation. Vertical force changes occurred after the perturbation was well underway (latency 65 ms) and were related to the displacement of the center of mass and active correction of trunk position. Shear forces showed both passive (inertial) and active components and suggested that the majority of the torque necessary for po,stural correction was generated by the hindlimb. EMG responses in forelimb and shoulder muscles were most correlated with increase in vertical force, showing a generalized co-contraction in tailward translation (when these limbs were loaded) and little activity when the forelimbs were unloaded. EMG responses in hindlimb showed reciprocal activation of agonists and antagonists during perturbation with strong synergies of thigh and foot flexors in tailward translation and thigh and foot extensors in headward translation. The forelimb EMG patterns were most consistent with the conclusion that the forelimb is used primarily for vertical support during perturbation. It was concluded that hindlimb EMG responses were appropriate for both vertical support and performance of the postural correction. The hindlimb muscle synergies observed during translation are the “mirror image” of those observed in humans by other workers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00238231
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  • 7
    Electronic Resource
    Electronic Resource
    Travelling wave solutions of diffusive Lotka-Volterra equations (1983)
    Springer
    Journal of mathematical biology 17 (1983), S. 11-32 
    Details
    ISSN: 1432-1416
    Keywords: Reaction diffusion equations ; Travelling waves ; Diffusive Lotka-Volterra equations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Mathematics
    Notes: Abstract We establish the existence of travelling wave solutions for two reaction diffusion systems based on the Lotka-Volterra model for predator and prey interactions. For simplicity, we consider only 1 space dimension. The waves are of transition front type, analogous to the travelling wave solutions discussed by Fisher and Kolmogorov et al. for a scalar reaction diffusion equation. The waves discussed here are not necessarily monotone. For any speed c there is a travelling wave solution of transition front type. For one of the systems discussed here, there is a distinguished speed c* dividing the waves into two types, waves of speed c 〈 c* being one type, waves of speed c ⩾ c* being of the other type. We present numerical evidence that for this system the wave of speed c* is stable, and that c* is an asymptotic speed of propagation in some sense. For the other system, waves of all speeds are in some sense stable. The proof of existence uses a shooting argument and a Lyapunov function. We also discuss some possible biological implications of the existence of these waves.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00276112
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  • 8
    Electronic Resource
    Electronic Resource
    Female competition for access to males affects birth rate in baboons (1983)
    Springer
    Behavioral ecology and sociobiology 13 (1983), S. 157-159 
    Details
    ISSN: 1432-0762
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Comparisons across populations of baboons (Papiospp) reveal that the birth rate is inversely related to the adult sex ratio. Evidence is adduced to show that this is a consequence of competition among females for access to males.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00293805
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  • 9
    Electronic Resource
    Electronic Resource
    Social organization of gelada baboons: Social units and definitions (1983)
    Springer
    Primates 24 (1983), S. 13-24 
    Details
    ISSN: 0032-8332
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract This paper aims to clarify terminological differences that have arisen between two different field studies of gelada baboons (Theropithecus gelada). First, a comparison of age classifications is made to show the physical correspondences between the two sets of classes. Second, the social system of the gelada baboon is outlined and the terms used to refer to the components of this system are defined and clarified. Attention is drawn to the complex structure of gelada society and to the relationship between the superficially similar social systems of the gelada and the hamadryas baboon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02381450
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  • 10
    Electronic Resource
    Electronic Resource
    The action of iontophoretically applied L-glutamate on an insect visceral muscle (1983)
    New York, NY [u.a.] : Wiley-Blackwell
    Archives of Insect Biochemistry and Physiology 1 (1983), S. 93-103 
    Details
    ISSN: 0739-4462
    Keywords: glutamate ; insect ; δ-philanthotoxin ; iontophoresis ; visceral muscle ; Locusta migratoria ; proctolin ; Chemistry ; Food Science, Agricultural, Medicinal and Pharmaceutical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: 1) lontophoretic application of L-glutamate was employed to study the distribution of glutamate receptors in the superior longitudinal (SL) muscles of the locust (Locusta migratoria) hindgut, in which spontaneous activity was inhibited using normal saline containing 5 mM MgCl2. 2) Junctional glutamate potentials with a rise time of 50-100 ms (peak) and a decay time of 250-400 ms were recorded at localized sites using ejection pulses in the range 5-10 nC. Most active sites were found in interfiber clefts and were spaced at about 250-300 μm intervals. 3) Desensitization of glutamate receptors occurred using ejection frequencies 〉 0.2 Hz. Desensitization could be irreversibly blocked using the lectin concanavalin A. 4) Depolarizing (D-) and biphasic depolarizing/hyperpofarizing (DH -) extrajunctional glutamate potentials were observed using ejection pulses 〉 15 nC. 5) δ-Philanthotoxin (δ-PTX) at concentrations 〉 0.3 Uml-1 inhibited junctional glutamate potentials in a dose-dependent manner, 50% inhibition was achieved using 0.45 Uml-1 δ-PTX. 6) Subthreshold concentrations of proctolin (up to 5 × 10-10M) had no visible effect on glutamate potentials, suggesting that proctolin possibly does not act by modulating glutamate activity. 7) It is proposed that glutamate plays a transmitter role in SL muscles, while the role of proctolin is still unclear.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/arch.940010110
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