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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food safety 16 (1996), S. 0 
    ISSN: 1745-4565
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The previously published (Palumbo et al. 1991) response surface model for describing the influence of temperature, pH, NaCl, and sodium nitrite on the aerobic growth of Aeromonas hydrophila K144 in BHI broth has been expanded to incorporate additional data. The effects of the variables on A. hydrophila aerobic growth kinetics were modeled by response surface analysis using quadratic and cubic polynomial models of (1) natural logarithm transformation of both the Gompertz B and M parameters and the lag phase duration (LPD) and generation time (GT), and (2) the square root transformation of B and 1/M calculated from 268 cultures (212 of which supported growth) from 81 variable combinations. In addition, the six models generated also were subjected to backward elimination regression analysis to remove nonsignificant variables. Based on examination of the adjusted R2 values of the resulting 12 models, three were selected for further evaluation by comparing their observed and predicted T1000-values (time for a 1000-fold increase in number; this concept incorporates the influence of the variables on both lag and generation times), LPDs and GTs. Using this method of comparison and evaluation, models based on cubic polynomial, natural logarithm transformation of GT and LPD gave the best “first estimates” of the aerobic growth characteristics of A. hydrophila.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1745-4565
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The effects and interactions of heating temperature (70–90C), pH (5–6.5), sodium chloride (0–3%), and sodium pyrophosphate (0–0.3%) on the heat resistance of a six strain mixture of spores of nonproteolytic Clostridium botulinum type B and type E in turkey were examined. Thermal death times were determined in submerged vials heated using a water bath. Heated spores were recovered on Reinforced Clostridial Medium (RCM) supplemented with lysozyme (10 μg/ml). Decimal reduction times (D-values) were calculated by fitting a survival model to the data with a curve fitting program. The D-values were analyzed by second order response surface regression for temperature, pH, salt (sodium chloride) and sodium pyrophosphate levels. The four variables interacted to effect the inactivation of spores. Confidence intervals (95%) predicted heat resistance of spores in turkey. The data suggest that the effect of reduced pH in increasing the inactivation was more pronounced at high temperatures and may provide an adequate degree of protection from nonproteolytic C. botulinum spores in minimally processed foods, particularly if employed in conjunction with combinations of salt and sodium pyrophosphate.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0160-4953
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Information Science and Librarianship
    Notes: The Reference Use Study Group of the University of Toledo's William S. Carlson Library utilized a questionnaire to determine how faculty used the reference collection, as well as their reasons for using it. This questionnaire was part of a comprehensive study of local reference collection use that employed a variety of evaluation methods. Some of the findings corroborated those identified in the literature. The results of this component of the study, as well as other components, will be used to weed the collection, to improve collection management, and may suggest strategies to develop channels of communication with the faculty. This article provides a description of the methodology used to query faculty, selected questionnaire results, brief analysis of these results and a copy of the questionnaire.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Six families in which familial PPH was segregating were chosen for microsatellite genotyping and linkage analysis (Fig. 1). Inspection of the pedigrees clearly indicated an autosomal dominant mode of inheritance for PPH; although, the presence of multiple unaffected obligate carriers, along with ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    New York : Cambridge University Press
    International labor and working class history 51 (1997), S. 216-219 
    ISSN: 0147-5479
    Source: Cambridge Journals Digital Archives
    Topics: History , Sociology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    Theatre research international 23 (1998), S. 275-282 
    ISSN: 0307-8833
    Source: Cambridge Journals Digital Archives
    Topics: Media Resources and Communication Sciences, Journalism
    Notes: Nathalie Sarraute has written six plays over a period of some fifteen years (1967–82). Her latest play, Pour un oui ou pour un non, was first performed in 1982. Given their relative success, however, one is forced to wonder why she has not continued to write for the theatre (though, since 1982, she has published four major works of narrative, Enfance, Tu ne t'aimes pas, Ici and Ouvrez). When I put this question to Nathalie Sarraute in October 1996, at the Institut Français in London, she replied that she had ‘found more amusing things to do’. Her failure to answer the question directly perhaps suggests an unawareness of the real answer, at least at conscious levels. The theatre, an inescapably physical medium, which requires the bodily presence of men and women as gendered beings, was, in fact, never really suited to a writer who continually takes refuge from the physical and even the sexual, hi words. It seems plausible, then, to conjecture that Sarraute gave up writing for the theatre, because her radio plays had, by reason of their success, been translated onto the stage, and the author did not know how to deal with a medium that privileged the physical as opposed to the emotional and psychological dimensions of human relationships which had been her territory since Tropismes. The frequently impersonal voices of her fiction work well on radio, but less so on a live stage, upon which the actors are physically as well as audibly present: ‘Le person-nage de théâtre’, says Alain Robbe-Grillet, ‘est en scène, c'est sa première qualité: il est là.’ In Sarraute's theatre, however, this physical presence is no more than a kind of contingency, wholly superfluous to the action. The characters find themselves together for no particular reason and they hardly ever interact physically. The very lack of stage directions, which the author justifies on the grounds of textual purity, is itself indicative of an absence of movement, the main signifier of physical presence. Textual purity depends for Sarraute on words alone.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Reactive oxygen (RO) has been identified as an important effector in ageing and lifespan determination. The specific cell types, however, in which oxidative damage acts to limit lifespan of the whole organism have not been explicitly identified. The association between mutations in the gene ...
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-198X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Behavioral ecology and sociobiology 37 (1995), S. 337-342 
    ISSN: 1432-0762
    Keywords: Visual signals ; Dominance Hypothermia ; Green iguana ; Signature display
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Iguanid lizards communicate threat, courtship and territorial advertisement through stereotyped headbob displays. It has been hypothesized that slight interindividual differences in these displays might enhance individual recognition and maintain dominance relationships within populations, but the precise display elements responsible have not been determined. The purpose of this study was to examine if experimentally induced differences in displays would decrease recognition of individual conspecifics. Specifically, social interactions between adult male green iguanas (Iguana iguana) were examined at normothermic and hypothermic body temperatures. Whereas the cadence (rate of muscle contraction) of stereotypic displays of individual lizards was slowed at hypothermic body temperature (Q 10 ≃ 1.6), the amplitude (maximal muscle contraction) of hypothermic displays remained constant relative to normothermic displays. Normothermic lizards viewing a display from a hypothermic lizard responded to that display as if it were performed at a normothermic cadence. During paired encounters between lizards (one hypothermic, one normothermic), dominant/subordinate dyads within the group were unusually maintained regardless of which individual was hypothermic. The exception occurred when dominant individuals at the lowest experimental body temperatures retreated from subordinate individuals. The results suggest that individual lizards recognized their relative social status even when cadence of displays was radically altered, indicating that cadence alone probably does not function in individual recognition. Other morphological, display elements, or scent cues may provide information useful in individual recognition.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Behavioral ecology and sociobiology 37 (1995), S. 337-342 
    ISSN: 1432-0762
    Keywords: Key words Visual signals ; Dominance ; Hypothermia ; Green iguana ; Signature display
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Iguanid lizards communicate threat, courtship and territorial advertisement through stereotyped headbob displays. It has been hypothesized that slight interindividual differences in these displays might enhance individual recognition and maintain dominance relationships within populations, but the precise display elements responsible have not been determined. The purpose of this study was to examine if experimentally induced differences in displays would decrease recognition of individual conspecifics. Specifically, social interactions between adult male green iguanas (Iguana iguana) were examined at normothermic and hypothermic body temperatures. Whereas the cadence (rate of muscle contraction) of stereotypic displays of individual lizards was slowed at hypothermic body temperature (Q 10 ≃ 1.6), the amplitude (maximal muscle contraction) of hypothermic displays remained constant relative to normothermic displays. Normothermic lizards viewing a display from a hypothermic lizard responded to that display as if it were performed at a normothermic cadence. During paired encounters between lizards (one hypothermic, one normothermic), dominant/subordinate dyads within the group were unusually maintained regardless of which individual was hypothermic. The exception occurred when dominant individuals at the lowest experimental body temperatures retreated from subordinate individuals. The results suggest that individual lizards recognized their relative social status even when cadence of displays was radically altered, indicating that cadence alone probably does not function in individual recognition. Other morphological, display elements, or scent cues may provide information useful in individual recognition.
    Type of Medium: Electronic Resource
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