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  • 1
    Electronic Resource
    Electronic Resource
    Structure of a second crystal form of Bence-Jones protein Loc: strikingly different domain associations in two crystal forms of a single protein (1989)
    s.l. : American Chemical Society
    Biochemistry 28 (1989), S. 4066-4072 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00435a065
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  • 2
    Electronic Resource
    Electronic Resource
    Evidence of the ozone(1-) radical in irradiated sodium bromate by electron spin resonance (1967)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 71 (1967), S. 4129-4129 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100871a066
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  • 3
    Electronic Resource
    Electronic Resource
    ‘RED DELICIOUS’ APPLE RESPONSE TO LOW DOSE RADIATION (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food quality 12 (1989), S. 0 
    Details
    ISSN: 1745-4557
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: ‘Red Delicious’ apples were tested for response to irradiation, at levels (0 to 1.0 KGy) sufficient for quarantine treatment, delivered up to 10 months post-harvest. Treatment regimes simulated marketing sequences including a 60 day holding period following removal from controlled atmosphere storage. Irradiated apples were softer and had less acid, but there was a retardation of the hydrolysis of starch. Irradiation effects were not accentuated with longer storage or during ripening. After 11 months of storage all the apples in this study were 6.7 (N) firmer than the Washington State export standard. The quality of all treated fruit were acceptable for marketing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-4557.1989.tb00314.x
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  • 4
    Electronic Resource
    Electronic Resource
    Characterization of mercury, arsenic, and selenium in the product streams of a bench-scale, inert-gas, oil shale retort (1990)
    s.l. : American Chemical Society
    Environmental science & technology 24 (1990), S. 258-263 
    Details
    ISSN: 1520-5851
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/es00072a016
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  • 5
    Electronic Resource
    Electronic Resource
    Effects of kinship on growth and movements of brown trout in field enclosures (2002)
    Oxford, UK : Munksgaard International Publishers
    Ecology of freshwater fish 11 (2002), S. 0 
    Details
    ISSN: 1600-0633
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract  – The effect of kinship on growth and use of space by individually PIT-tagged 1+ brown trout was studied for 11 weeks in eight stream enclosures. Each enclosure consisted of two sections, separated by a region containing PIT-detecting antennae, which enabled us to measure use of sections by all individuals. Two types of sibling groups were tested, a single sibling group, F1, consisting of four individuals that were reared together in hatchery tank ‘a’ (F1a) plus four additional siblings of the same family but raised in hatchery tank ‘b’ (F1b), and a mixed sibling group, consisting of four F1a individuals plus four siblings from a second family, F2. Based on kin theory and earlier laboratory studies, we expected that growth of the F1a individuals in the single sibling group to be greater than that of F1a individuals in the mixed family sibling group, but instead we found just the opposite. The variance of growth did not differ between treatments. Nor was there a difference in time F1a individuals spent together when they were in mixed versus single sibling groups. We did find that F1a individuals changed habitat more frequently than F2 individuals in the mixed sibling group but less frequently than F1b in the single sibling groups. Thus, our predictions based on kin theory for growth and behavior of brown trout were not supported by our data, and we suggest that the role of kin recognition for the ecology of salmonids deserves further attention.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1600-0633.2002.00018.x
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  • 6
    Electronic Resource
    Electronic Resource
    Sibling recognition in juvenile Arctic charr, Salvelinus alpinus (L.) (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 34 (1989), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Juvenile Arctic charr, Salvelinus alpinus (L.), from two full sibling groups were studied concerning the possible existence of chemical cues with information about kinship. Each full sibling group was divided into two groups with the same number of specimens and placed in two separate aquaria. The division coincided with the start of exogenous feeding. Preference tests were performed about 7 and 10–13 months after the division. Due to the increasing size of experimental fish, two different sizes of apparatus were used. The first series of experiments was performed in a small Y-maze fluviarium and the second series in the large standard fluviarium. The momentary positions of one fish at a time in the test area were recorded by time-lapse photography with a 16-mm film camera and filtered flashlight (no transmittance 〈670 nm). The fish were given a choice between two water qualities; thus the following comparisons were made: (i) unconditioned water ν. water scented by siblings from the same aquarium; (ii) unconditioned water ν. unfamiliar non-siblings; (iii) siblings from the same aquarium ν. unfamiliar non-siblings; (iv) siblings from a separate aquarium ν. unfamiliar non-siblings; (v) siblings from the same aquarium ν. siblings from a separate aquarium. The test fishes preferred water scented by siblings over non-siblings, even though the siblings were taken from a separate aquarium. Nevertheless, they were attracted to water scented by unfamiliar non-siblings in preference to unconditioned water. No preference was shown between chemical cues from siblings taken from the same and a separate aquarium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1989.tb03336.x
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  • 7
    Electronic Resource
    Electronic Resource
    The role of F-series prostaglandins as reproductive priming pheromones in the brown trout (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 60 (2002), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Electrophysiological studies demonstrated that the olfactory epithelium of mature male brown trout Salmo trutta parr was acutely sensitive to F-series prostaglandins (PGFs) PGF1α and PGF2α, with detection threshold concentrations of 10−11 M. The olfactory epithelium was also sensitive to the PGF metabolite 15-ketoPGF2α (threshold 10−8 m), but did not detect a further metabolite, 13,14,-dihydro-15-ketoPGF2α Immature brown trout did not detect any of the prostaglandins tested. Exposure of mature male brown trout parr to waterborne PGF1α and PGF2α (concentration 10−8 m), resulted in significant increases in levels of expressible milt and the plasma concentrations of 17,20β-dihydroxy-4-pregnen-3-one, testosterone and 11-ketotestosterone. The olfactory epithelium of both immature and mature male brown trout parr was sensitive to the urine and ovarian fluid from ovulated female brown trout. Exposure of mature male brown trout parr to ovarian fluid resulted in an increase in the levels of plasma 17,20β-dihydroxy-4-pregnen-3-one whilst exposure to urine increased the levels of expressible milt. In addition, PGF2α was found to be present within both the urine and ovarian fluid of mature female brown trout. It is suggested that the F-series prostaglandins have a role as priming pheromones in male brown trout.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.2002.tb01688.x
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  • 8
    Electronic Resource
    Electronic Resource
    The influence of dominance and diet on individual odours in MHC identical juvenile Arctic charr siblings (2003)
    Oxford, UK : Blackwell Science Ltd
    Journal of fish biology 63 (2003), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: No difference in attraction was observed in sibling Artic charr Salvelinus alpinus between water scented by dominant or subordinate major histocompability complex (MHC) identical fish observed in a two-choice fluviarium. In a second experiment, MHC identical sibling donors were given different types of food pellets before the preference test. The test fish showed a significant attraction to the sibling given the same kind of food as the test fish itself during the first 6 h of the fluviarium tests. The results suggest that diet has an influence on the odours released and can, in addition to MHC related odours, be used for information relating to group member identity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1095-8649.2003.00185.x
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  • 9
    Electronic Resource
    Electronic Resource
    Chemo-attraction between juveniles of two sympatric stocks of Arctic charr, Salvelinus alpinus (L.), and their gene frequency of serum esterases (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 28 (1986), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Juvenile Arctic charr, Salvelinus alpinus (L.), from two spawning locations, Åbränna stock and Holderströmmen stock, in Lake Torrön, Sweden, were used crosswise as odour donors and receivers in fluvarium tests concerning attraction to stock-specific odours. The momentary positions of the odour-receiving charr were recorded with a film camera and filtered flash light (no transmittance 〈 670 nm). One test fish at a time was placed in the test area to choose in darkness between two water qualities, viz. (i) control tests were run with pure water all over the test yard; (ii) pure water and water having passed 20 specimens of their own stock; (iii) pure water and water conditioned by the presence of 20 specimens of the sympatric stock; (iv) water conditioned by passing 20 specimens of either stock. Specimens of both stocks were attracted to water scented by either stock. The åbränna (AB) but not the Holderströmmen stock (HO) showed significantly stronger attraction to scent of their own stock than to the sympatric stock. This was supported in tests with simultaneous supply of AB and HO-scented water, when AB significantly preferred the water having passed specimens of its own stock, while HO did not prefer any water quality. Out of 300,65 specimens from each stock were analyzed as to the gene frequency of serum esterases. The HO sample, in contrast to AB, was heterogeneous as the frequency of heterozygotes was lower than that expected under Hardy-Weinberg equilibrium. No heterogeneity in gene frequencies was observed between AB and HO. The results of both odour attraction tests and the gene frequency analysis points to AB, in contrast to HO, as being offspring from a discrete stock.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1986.tb05160.x
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  • 10
    Electronic Resource
    Electronic Resource
    Effects of kinship on aggression and RNA content in juvenile Arctic charr (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 51 (1997), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The behaviour of juvenile Arctic charr Salvelinus alpinus was studied in groups of four siblings composed of familiar and unfamiliar individuals or in mixed groups of four where both siblings and unrelated individuals were present. The frequency of aggressive acts was significantly higher in the mixed groups compared to the pure sibling groups and the difference was present at all levels of the hierarchy rank order, based on a dominance index, except the lowest ranked individuals. The difference was significant after but not before feeding, implying that competition with non-kin for a food resource increased the aggression. No significant difference in weight gain was observed between sibling and mixed groups during the 6 days of the experiment, but the RNA contents of lateral musculature in dominant individuals from sibling groups were significantly higher than the corresponding fish in the mixed group, suggesting a difference in growth rate when the experiments ended. No significant difference in RNA content was observed between subordinate fish of the two treatments, i.e. siblings v. mixed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1997.tb01676.x
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