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  • 1
    Electronic Resource
    Electronic Resource
    Nucleic Acid, Purine and Proximate Analyses of Mechanically Separated Beef and Veal (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 48 (1983), 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: Deoxyribonucleic acid (DNA), ribonucleic acid (RNA), purine (adenine, guanine, hypoxanthine and xanthine) and proximate analyses of mechanically separated (MS) beef and veal were conducted to verify and evaluate changes in nucleic acid content which may result from mechanical separation. DNA and total nucleic acid levels were higher in both MS beef and veal whereas RNA levels were higher only in MS beef compared to hand deboned (HD) counterparts. Adenine, guanine and xanthine levels were higher in MS beef and veal, and hypoxanthine levels were lower compared to HD counterparts. Total purine content of MS beef did not differ from HD beef, whereas the purine content of MS veal was slightly higher than HD veal. It would appear that the addition of MS products to the diet would not significantly alter total purine consumption and hence should pose no risk to hyperuricemic individuals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1983.tb09232.x
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  • 2
    Electronic Resource
    Electronic Resource
    Searching for Halo Dark Matter through γ Ray Lines (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 578 (1989), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Notes: There is a considerable interest in the possible detection of dark matter1 through astrophysical observations as well as terrestrial observations.2,3 If dark matter is made up of massive, weakly interacting particles, one of the best indirect signatures would be the detection of annihilation products of these particles.4–7 It has been recently suggested8–12 that if the halo of our Galaxy is made of particles in the mass range 1 GeV to 100 GeV, and if these particles self-annihilate, as most of the potential candidates do, then monoenergetic γ rays should be observed when they annihilate directly into two photons. The energy of these γ's is very nearly equal to the mass of the (non-relativistic: v/c± 10−3) parent particles. Very narrow γ lines in the range 1 GeV to 100 GeV would provide a clear signature for dark matter annihilation, if they stand out above the background.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1989.tb50631.x
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  • 3
    Electronic Resource
    Electronic Resource
    15N2 fixation, H2 evolution and C2H2 reduction relationships in Phaseolus vulgaris (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 49 (1980), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: In a study of N2 fixation in nodules of beans (Phaseolus vulgaris L.) cv. Venezuela-350 of different ages and kept under controlled light and temperature conditions, three parameters - 15N2 fixation, C2H2 reduction and H2 evolution—were measured.C2H2 reduction was positively related to the N fixed. A standardization of sampling is necessary to keep experimental errors to a minimum. To decrease the variation between replications, the nodules should be carefully incubated (adequate time and temperature), and the samples for chromatography should also be carefully stored. No significant difference was found in C2H2 reduction in the systems studied - nodulated roots, disturbed whole plants and intact plants—during the first hour of measurement.H2 evolution was detected in nodules over 20 days of age and was positively related to N2 fixation and C2H2 reduction. This measurement was essential to account for the equilibrium between the three parameters in the electron balance ratio. Under phytotron conditions, maximum H2 evolution occurred 20–30 days after planting.Nodulated roots from different plants were used to determine the N2 fixed and C2H2 reduction, and on average the ratios C2H2:N2 varied between 7.3 and 8.3 for all ages. In vivo C2H4/(3N2+ H2) electron balance values were over 1, varying from 1.32 to 1.43. These data suggest that overestimation of actual N2 fixation might be occurring when using the C2H2 reduction technique, even if taking account for H2 evolution. In this case, this method should be used with great care to avoid an overestimation of on average 32-43% of the actual value. Variation was smaller between the measures of the three parameters when younger nodules were used.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1980.tb08643.x
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  • 4
    Electronic Resource
    Electronic Resource
    XIX. A transphyletic anti-infectious control strategy based on the killer phenomenon (1998)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS immunology and medical microbiology 22 (1998), S. 0 
    Details
    ISSN: 1574-695X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: A strategy for the prevention and control of candidiasis, pneumocystosis, and tuberculosis, based on the idiotypic network of the yeast killer effect has been envisaged. Anti-idiotypic antibodies representing the internal image of a candidacidal, pneumocysticidal, and mycobactericidal killer toxin from Pichia anomala and idiotypes of killer toxin-neutralizing monoclonal antibodies mimicking the specific cell wall receptor of sensitive microorganisms might provide a unique approach for engineering innovative antibiotics and vaccines active against taxonomically unrelated pathogenic microorganisms. The rationale of the strategy relies on a phenomenon of microbial competition which has been mutated by the immune system in the response to natural infections.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-695X.1998.tb01200.x
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