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  • 1
    Electronic Resource
    Electronic Resource
    Relation of RNA/DNA ratios to growth for the scallop Euvola (Pecten) ziczac in suspended culture (1996)
    Springer
    Marine biology 126 (1996), S. 245-251 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We examined the relation of RNA/DNA ratios to growth for three size groups of the tropical scallop Euvola ziczac maintained in suspended culture at 8, 21 and 34 m in depth in the Golfo de Cariaco, Venezuel. Various growth parameters indicated that production decreased with depth. This was more likely due to a decrease in seston quality with depth than to temperatures or seston abundance (which were similar at the various depths studied). The RNA/DNA ratio was correlated with the G-index of muscle growth for juveniles (r 2=0.55). A much weaker correlation was observed for the maturing scallops (r 2=0.18), probably because of the interaction between reproductive and somatic growth. In fully mature scallops, somatic growth was negligible and the RNA/DNA ratios appeared to be inversely related to the level of physiological stress of the scallops. Whereas RNA/DNA ratios are difficult to interpret for maturing E. ziczac, because an increased ratio can be due to either increased gonadal or somatic growth, they are useful in predicting growth in juveniles and physiological stress in fully mature scallops.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00347449
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  • 2
    Electronic Resource
    Electronic Resource
    Generalized deformed algebra
    Amsterdam : Elsevier
    Physics Letters A 183 (1993), S. 363-370 
    Details
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9601(93)90589-R
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  • 3
    Electronic Resource
    Electronic Resource
    q-deformed classical mechanics
    Amsterdam : Elsevier
    Physics Letters A 191 (1994), S. 71-76 
    Details
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9601(94)90561-4
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  • 4
    Electronic Resource
    Electronic Resource
    Effects of a generalized presheath source in flowing magnetized plasmas (1991)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 3 (1991), S. 3053-3058 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This paper extends the previous kinetic model [Phys. Rev. A 38, 4721 (1988)] of probing objects in flowing magnetized plasmas by generalizing cross-field transport and adding ionization to the source in the Boltzmann equation along the presheath. Ion sheath current density and ratio (R) of upstream to downstream current are obtained as a function of normalized plasma drift velocity (M), equivalent viscosity ratio (α), ion temperature (Ti∞), and ionization rate (σi). The form R=exp(M/Mc) fits the results very well and the calibration factor (Mc) is obtained. Here Mc decreases as α increases, Ti∞ increases, or σi increases. Comparisons with fluid and kinetic models are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859784
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  • 5
    Electronic Resource
    Electronic Resource
    Plasma flow measurements along the presheath of a magnetized plasma (1989)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 1 (1989), S. 2229-2238 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Plasma flow measurements in the presheath have been performed using two types of directional electric "Mach'' probes, in the PISCES facility at UCLA [J. Nucl. Mater. 121, 277 (1984)]. A fast scanning versatile probe combination has been developed, which operates simultaneously as a "magnetized'' Mach probe, an "unmagnetized'' Mach probe (with characteristic probe size greater than and smaller than ion gyroradius, respectively), and an emissive probe. Presheaths have been investigated by inserting a small object at the center of the plasma column. Variations in plasma flow velocity, density, and potential along the presheath have been deduced by fluid and kinetic theories. A comparison is made between Mach numbers obtained from the magnetized probe and the unmagnetized probe. Incorporation of shear viscosity of order ∼0.5nmiD⊥ in the cross-field transport along the presheath seems best to model the results. The cross-field diffusivity (D⊥) is found to scale approximately proportional to B−1/2, with magnitude about 4× larger than Bohm in the PISCES plasma. The effect of an electrical bias applied to the object on the presheath characteristics is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859039
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  • 6
    Electronic Resource
    Electronic Resource
    White microbeam diffraction from distorted crystals (2001)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 79 (2001), S. 749-751 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We present a general description of white-beam (Laue) scattering from grains with dislocations. This approach is applied to examples with equal numbers of positive and negative Burger's vectors (paired) and with unpaired dislocations of one sign (geometrically necessary). We find that streaking of the Laue reflections is sensitive to both long-range geometrical rotations introduced by unpaired edge dislocations and to local rotation fluctuations introduced by the total number of dislocations (paired and unpaired). We demonstrate the technique by analyzing the dislocation distribution in a nanoindented Cu single crystal. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1389321
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  • 7
    Electronic Resource
    Electronic Resource
    Activities of the Federation of Asian Chemical Societies (FACS)
    Amsterdam : Elsevier
    TrAC Trends in Analytical Chemistry 6 (1987), S. IV-V 
    Details
    ISSN: 0165-9936
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0165-9936(87)87060-7
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  • 8
    Electronic Resource
    Electronic Resource
    Rate of acclimation of the tropical salt-marsh fish Cyprinodon dearborni to temperature changes (1981)
    Springer
    Hydrobiologia 78 (1981), S. 177-181 
    Details
    ISSN: 1573-5117
    Keywords: Acclimation rate ; thermal tolerance ; critical thermal maximum ; temperature changes ; tropical fish
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The acclimation rates of temperature changes in Cyprinodon dearborni, collected from Laguna Los Patos, Cumana, Venezuela, were determined by the critical thermal maximum method. At an increase in temperature (from 24 to 31°C) fish started to gain acclimation level after 3 hours and took 3 days to fully get up to a higher level of resistance to heat death; however, at a decrease in temperature (from 3 t to 24°C) fish began to lose its acclimation level after 12 days and required 39 days to reach a lower level of resistance to thermal death.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00007593
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  • 9
    Electronic Resource
    Electronic Resource
    Expression of recombinant human interleukin 6 ( rhIL6) in Saccharomyces cerevisiae by the modified phosphoglycerate kinase and chelatin promoter (1997)
    Springer
    Biotechnology letters 19 (1997), S. 1169-1173 
    Details
    ISSN: 1573-6776
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Using the modified yeast expression vectors that contained phosphoglycerate kinase or chelatin promoter with the adenine (A) base at –3 position from the ATG coding sequences and the leu-2 gene, recombinant human inter-leukin-6 ( rhIL-6) was produced as a b-galactosidase ( lacZ) fusion protein in Saccharomyces cerevisiae. Expression level of the IL-6-lacZ was 12 times higher than that from the unmodified wild type plasmids and IL-6 activity was 9–9.8 x 10 5 unit/mg yeast total protein. Thus these modified yeast vectors are useful for high expression of foreign genes in yeast
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018421517371
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  • 10
    Electronic Resource
    Electronic Resource
    The fourth-dimention concept in the finite element analysis of transient heat transfer problems (1981)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 17 (1981), S. 315-325 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: This study presents the finite element analysis for the transient heat transfer problems by introducing the Fourth-dimension concept. Time is treated as an additional dimension in the solution domain thereby Increasing the number of dimensions by one. For instance, a three-dimensional transient problem can be considered as a four-dimensional problem in the x, y, z, t domain and a two-dimensional transient problem can be considered as a three-dimensional steady-state problem in the x, y, t domain, respectively. The variational principle of the finite element method and the techniques existing for steady-state problems can be directly utilized. Numerical calculations were performed for heat conduction problems, laminar-turbulent convective heat transfer problems, and radiative heat transfer problems.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620170302
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