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  • 1
    Electronic Resource
    Electronic Resource
    High resolution observations of pellet emission on TFTR (abstract)a) : Proceedings of the tenth topical conference on high temperature plasma diagnostics (1995)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 66 (1995), S. 841-841 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: High resolution, rapidly sampled measurements of the light emission from injected impurity pellets have recently been carried out on TFTR. Both wide and narrow views of the pellet light have been accomplished with a tightly collimated fanned array of fiber-optically coupled photomultipliers. Deep (≈100%), high frequency (40–90 kHz) modulation of the pellet emission has been observed in both neutral beam and rf heated discharges with as little as ≈1.5 MW of heating. This finding is consistent with recent work carried out on ASDEXb) with the exception that this modulation phenomenon is seen not only with hydrogenic pellets but also with lithium and boron pellets. This observation seems to point to an instability associated with the plasma surrounding the pellet rather than an instability which depends upon the atomic physics of the pellet. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1146243
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  • 2
    Electronic Resource
    Electronic Resource
    Local transport barrier formation and relaxation in reverse-shear plasmas on the Tokamak Fusion Test Reactor : The 38th annual meeting of the Division of Plasma Physics (DPP) of the American Physical Society (1997)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 4 (1997), S. 1736-1744 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The roles of turbulence stabilization by sheared E×B flow and Shafranov shift gradients are examined for Tokamak Fusion Test Reactor [D. J. Grove and D. M. Meade, Nucl. Fusion 25, 1167 (1985)] enhanced reverse-shear (ERS) plasmas. Both effects in combination provide the basis of a positive-feedback model that predicts reinforced turbulence suppression with increasing pressure gradient. Local fluctuation behavior at the onset of ERS confinement is consistent with this framework. The power required for transitions into the ERS regime are lower when high power neutral beams are applied earlier in the current profile evolution, consistent with the suggestion that both effects play a role. Separation of the roles of E×B and Shafranov shift effects was performed by varying the E×B shear through changes in the toroidal velocity with nearly steady-state pressure profiles. Transport and fluctuation levels increase only when E×B shearing rates are driven below a critical value that is comparable to the fastest linear growth rates of the dominant instabilities. While a turbulence suppression criterion that involves the ratio of shearing to linear growth rates is in accord with many of these results, the existence of hidden dependencies of the criterion is suggested in experiments where the toroidal field was varied. The forward transition into the ERS regime has also been examined in strongly rotating plasmas. The power threshold is higher with unidirectional injection than with balance injection. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.872275
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  • 3
    Electronic Resource
    Electronic Resource
    Photodimerization and excimer emission in a crystalline 1,4-diphenylbutadiene (1972)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 94 (1972), S. 6776-6779 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00774a034
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  • 4
    Electronic Resource
    Electronic Resource
    COMPOSITION OF CEREBRAL LIPIDS IN MURINE SUDANOPHILIC LEUCODYSTROPHY: THE JIMPY MUTANT (1970)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 17 (1970), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— The composition of sphingolipids and phospholipids of mouse brain during myelination was determined in normal animals and in mice with a genetically-determined disorder of myelin formation. Myelination was normally characterized by a two-fold increase in total phospholipids of brain, a four-fold increase in total sphingolipids, and a six-fold increase in cerebrosides. The Jimpy mutant, with defective formation of myelin in the central nervous system, demonstrated a marked deficiency of cerebrosides and a significantly lower content of total sphingolipids, without alteration of the composition of phospholipids. The increasing content of cerebrosides in the brains of the leucodystrophic mutant at the time in development when myelination is most active and the subsequent relative deficit suggest that the failure of myelin formation is not the result of a defect in biosynthesis of cerebrosides.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1970.tb00503.x
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  • 5
    Electronic Resource
    Electronic Resource
    ADENOSYLMETHIONINE DECARBOXYLASE IN DEVELOPING RAT BRAIN (1973)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 20 (1973), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Adenosylmethionine decarboxylase from rat brain has been found to be similar to the same enzyme isolated from other rat tissues in regard to kinetic parameters, pH optimum, putrescine requirement, and subcellular location. Evidence is presented that pyridoxal phosphate is not the functional cofactor in enzymatic decarboxylation by the rat brain preparation. The capacity for spermidine synthesis in developing rat brain was determined by measurement of the activity of adenosylmethionine decarboxylase. The activity increased dramatically after 10 days of postnatal age. This increase occurred after the period of maximum nucleic acid synthesis, an observation which suggests that spermidine may have a role in the functional development of the brain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-4159.1973.tb00249.x
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  • 6
    Electronic Resource
    Electronic Resource
    The effect of muscle excision before the onset of rigor mortis on the palatability of beef (1970)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of food science & technology 5 (1970), S. 0 
    Details
    ISSN: 1365-2621
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: A study has been made to determine if organoleptically and microbiologically acceptable beef could be produced by pre-rigor excision followed by rigor setting and short-term aging of bovine muscle. Six carcasses (three steers, two young bulls and one old bull) were subjected to each of three treatments: (1) the control side of each carcass was chilled at 9°C for 24 hr; (2) one sample (PRE-24) from each of five sites on the other side of each carcass was removed pre-rigor and stored at 15°C for 24 hr; (3) one sample (PRE-48) from each of five sites was stored at 15°C for 48 hr.Although the PRE-24 samples of the middle of the biceps femoris, anterior longissimus, and posterior longissimus were generally assessed to be similar to their controls in tenderness and other organoleptic properties a further 24 hr storage at 15°C resulted in a significant tenderization of the PRE-48 samples from these locations relative to their controls (P 〈 0.05). There was no treatment effect on the semimembranosus, whereas the semitendinosus toughened after being excised pre-rigor. Mean bacterial numbers were held within the range 102−105/cm2 muscle surface after 48 hr storage at 15°C in a sealed, gas-impermeable bag.The investigation shows that a procedure for the pre-rigor excision of bovine muscle can produce organoleptically acceptable beef of a satisfactory microbiological standard.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1970.tb01577.x
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  • 7
    Electronic Resource
    Electronic Resource
    USE OF WHOLE-BODY PERFUSION IN THE STUDY OF MUSCLE GLYCOLYSIS (1971)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 36 (1971), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: SUMMARY The muscles of stress-susceptible animals exhibit an extremely rapid rate of glycolysis when subjected to either excision or exsanguination anoxia. The adaptation of the whole-body perfusion technique to the intact animal makes it possible to study the influence of a wide variety of reagents while maintaining the structural integrity of the musculature. This paper outlines the perfusion technique as applied in this laboratory to adult pigs, and in addition describes a biopsy procedure which permits the use of one longissimus muscle as an untreated control for the other, thereby overcoming the problem of wide inter-animal variability. Results are presented of experiments designed to validate the perfusion and biopsy routines, and an account is given of preliminary investigations of the effects of added calcium and magnesium ions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1971.tb15125.x
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  • 8
    Electronic Resource
    Electronic Resource
    STRUCTURE AND RECIPIENT ABILITY IN E. COLI MUTANTS (1971)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 182 (1971), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1971.tb30651.x
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  • 9
    Electronic Resource
    Electronic Resource
    HOT BONING AND VACUUM PACKAGING OF EIGHT MAJOR BOVINE MUSCLES (1974)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 39 (1974), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1974.tb01008.x
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  • 10
    Electronic Resource
    Electronic Resource
    Nucleic Acids, Purines, and Pyrimidines (1950)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Biochemistry 19 (1950), S. 149-186 
    Details
    ISSN: 0066-4154
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Chemistry and Pharmacology , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.bi.19.070150.001053
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