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  • 1
    Electronic Resource
    Electronic Resource
    Alopecia induced in young mice by exposure to excess dietary zinc (1986)
    Springer
    Cellular and molecular life sciences 42 (1986), S. 551-553 
    Details
    ISSN: 1420-9071
    Keywords: Alopecia ; zinc excess ; mice ; copper deficiency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Second generation mice were exposed to normal (50 ppm, Group I) or excess (2000 ppm, Group II) zinc in the maternal diet during gestation and lactation, then weaned and continued on the mother's diet until sacrifice at 8 weeks. Tibia zinc reflected dietary intake. Group II had reduced plasma copper, body weight, and hematocrit; the second coat of hair appeared late and was lighter in color than Group I, possibly as an effect of copper and pigmentation development and hair growth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01946698
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  • 2
    Electronic Resource
    Electronic Resource
    Haematological and lymphocyte subset analyses in sheep inoculated with bovine immunodeficiency-like virus (1994)
    Springer
    Veterinary research communications 18 (1994), S. 471-482 
    Details
    ISSN: 1573-7446
    Keywords: bovine immunodeficiency-like virus ; haematology ; infectivity ; lentivirus ; lymphocyte ; polymerase chain reaction ; provirus ; reverse transcriptase ; serology ; sheep
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Bovine immunodeficiency-like virus (BIV) was passagedin vivo by intraperitoneal transfusion of ovine whole blood. Prior to transfusion, the recipient sheep were given sodium thioglycolate intraperitoneally to induce mild non-suppurative inflammation. The anti-BIV antibody response, haematology, and peripheral blood lymphocyte subsets (B, γδ, CD2+, CD4+ and CD8+) of recipient sheep were assessed for one year following transfusion. Passaging was successful since serum anti-BIV antibody responses were detected in 5 of the 6 recipient sheep; 1 of the 5 remained seropositive throughout the study. Lentivirus was not isolated from the recipient sheep, but provirus was detected by the polymerase chain reaction in DNA from peripheral blood leukocytes in 3 of the 5 sheep that seroconverted. In the BIV-inoculated sheep, neutrophils and eosinophils were significantly increased (p⩽0.05) at 3 months and between 6 and 8 months postinoculation, respectively. B, CD2+ and CD4+ cells and the CD4+/CD8+ ratios were significantly increased (p⩽0.05) 2 months postinoculation. Mild, transient haematological changes occurred in BIV-exposed sheep, but illness was not detected in the year.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01839424
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  • 3
    Electronic Resource
    Electronic Resource
    Prediction of pressure drop in two-phase single-component fluid flow (1962)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 8 (1962), S. 18-25 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Data on pressure drop in two-phase, single-component fluid flow, both with and without heat transfer, are presented in terms of the Lockhart and Martinelli correlation parameters. The fluids used were trichloromonofluoromethane and hydrogen.The results are compared with the correlation curve recommended by Martinelli and Nelson and give frictional pressure drops that are about 40% lower than the curve. The reasons for the deviations are discussed in terms of the effects of friction factors, the existence of metastable equilibrium, accuracy of data and instrumentation, and calculation procedures.It is concluded that the Martinelli and Nelson correlation and a simple momentum pressure drop computation can be superposed to predict roughly the total pressure drop in tubes containing steady state, two-phase, single-component fluid flow with appreciable vaporization.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690080108
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  • 4
    Electronic Resource
    Electronic Resource
    Production and related variables in bovine leukaemia virus-infected cows (1991)
    Springer
    Veterinary research communications 15 (1991), S. 463-474 
    Details
    ISSN: 1573-7446
    Keywords: bovine leukaemia virus ; cattle ; dot blot ; fat ; milk ; production ; protein ; reproduction ; serology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A newly developed milk dot blot test was used to detect anti-bovine leukaemia virus (BLV) antibody in milk samples from 2079 lactating adult cows from among 61 herds. The milk dot blot test was highly repeatable; the concordance rate, compared with the agar gel immunodiffusion test performed on serum, was 83.5%. All herds contained BLV-positive cows; the prevalence rate was 36%. BLV-positive cows tended to come from larger herds and were older and more often later in lactation. Fourteen production and related variables (herd size, age, days open, days in milk, milk somatic cell count, milk, fat, and protein produced in the current lactation, projected production of milk, fat, and protein, and breed class average deviations for milk, fat, and protein) were compared between BLV-positive and BLV-negative cows. Although somatic cell count, milk produced, and projected production of milk and protein were related significantly to BLV status using simple tests of association, once the variables herd size, age and days in milk were controlled, these differences were removed. Further analyses using logistic (outcome: individual cow BLV status) and least-squares regression (outcome:herd proportion of BLV-positive cows) failed to show an association between any of the measured production or related variables and BLV-positivity. We concluded that the effect of BLV on production and related variables in dairy cows was below the sensitivity of our analytical techniques or was non-existent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00346546
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  • 5
    Electronic Resource
    Electronic Resource
    Morphology of polyethylene blends. II: Formation of a range of morphologies in blends of polyethylene with increasing content of styrene-isoprene-styrene triblock copolymers during extrusion-blowing (1992)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 32 (1992), S. 6-13 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Blends containing polyethylene (LDPE, LLDPE, or LDPE-LLDPE) with different weight percent of styrene-isoprene-styrene (SIS) triblock copolymers have been obtained by extrusion-blowing. The morphology of the blends, investigated by scanning electron microcopy (SEM), has been related to composition but also to different parameters such as viscosity, nature of the polyethylene phase, and extrusion conditions. A large range of morphologies is observed and indicates that the main factors determining the morphology of the blends are the composition, the elongational fields at the exit of the die and, in certain limits, the relative viscosities of the components of the blends.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760320103
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  • 6
    Electronic Resource
    Electronic Resource
    Photo-Oxidation and photo-stabilization of blends of low-density polyethylene and styrene-butadiene-styrene copolymersPresented at the Symposium Polymer Blends, University of Warwick, September 1981. (1982)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 22 (1982), S. 912-916 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The photo-oxidation of blends of low-density polyethylene and styrene-butadiene-styrene block copolymers has, been shown to result mainly from the degradation of the pollybutadiene part of the material. The solution infra-red and fluorescence spectra, and mechanical properties have been studied as a function of the irradiation time. Evidence of some interaction between the components of the blend could be obtained.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760221410
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