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  • 1
    Electronic Resource
    Electronic Resource
    THE SOLVENT EFFECT OF FERRIC AND CUPRIC SALT SOLUTIONS UPON GOLD. (1909)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 31 (1909), S. 1261-1270 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01942a001
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Apatite and Spodiosite (1911)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 15 (1911), S. 463-470 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j150122a002
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  • 3
    Electronic Resource
    Electronic Resource
    The Chemical and Mineralogical Examination of Some Chinese Tea Soils. (1910)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 2 (1910), S. 462-463 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie50023a009
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  • 4
    Electronic Resource
    Electronic Resource
    Observations on the effects of long-term withdrawal on carcass composition and residue concentrations in clenbuterol-medicated cattle (1993)
    Springer
    Veterinary research communications 17 (1993), S. 459-468 
    Details
    ISSN: 1573-7446
    Keywords: β-agonists ; clenbuterol ; immunoassay ; pharmacokinetics ; residues ; ultrasound ; withdrawal
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The detection of the illegal use of clenbuterol (CBL) as a growth promoter has relied on detecting residual concentrations of the drug in body fluids or tissues. Analysis of retinal extracts has recently been shown to considerably extend the detection period following withdrawal. The withdrawal periods required to eliminate residues from the liver and retina were investigated by medicating 20 cattle with CBL for 30 days; 6 control animals remained unmedicated. Residual concentrations were monitored throughout this period and for the subsequent 140 days. Concurrent changes in muscle areas and backfat thicknesses were recorded by ultrasound. CBL was detectable in liver up to the 56th day of withdrawal (0.35 ng/g, SD=0.5), but retinal concentrations remained well above detectable concentrations throughout the withdrawal period (22.5 ng/g, SD=6.5). There were small gains (3–4%) in the muscle areas of treated cattle during medication as compared to controls (p〉0.05). These comparative gains remained during withdrawal. Backfat thicknesses in treated animals were 40% lower than in controls at the end of medication (p〈0.01). However, by 70 days after withdrawal this difference had disappeared (p〉0.05) owing to accelerated fat deposition in the treated group. The retina has been shown to be a highly effective target matrix for detecting CBL administration after long withdrawal periods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01839213
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  • 5
    Electronic Resource
    Electronic Resource
    Vaginal electrical resistance in cows: 1. Measurements in isolated reproductive tracts (1981)
    Springer
    Veterinary research communications 5 (1981), S. 73-76 
    Details
    ISSN: 1573-7446
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Measurements of vaginal electrical resistance (VER) taken post mortem from selected sites in the genitalia of 28 cows showed that the optimum site for this purpose is the anterior vagina.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02214971
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  • 6
    Electronic Resource
    Electronic Resource
    Vaginal electrical resistance in cows: 2. Relationship to milk progesterone concentrations during the reproductive cycle (1981)
    Springer
    Veterinary research communications 5 (1981), S. 77-84 
    Details
    ISSN: 1573-7446
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract When the vaginal electrical resistance (VER) was measured in the anterior vagina in 4 cows during a total of 12 oestrous cycles, there was a close correlation between VER, milk progesterone levels and visual observations of oestrus. The cyclic changes in both VER and milk progesterone ceased in 2 cows which became pregnant during the study. In a pregnant cow, the VER was found to be constant both pre-partum and immediately post-partum. These results show that measurement of VER can be a useful aid in the confirmation of oestrus and suggest that the technique may also be applicable to the early diagnosis of pregnancy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02214972
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  • 7
    Electronic Resource
    Electronic Resource
    Pregnancy diagnosis in cattle by measuring vaginal electrical resistance (1981)
    Springer
    Veterinary research communications 5 (1981), S. 85-90 
    Details
    ISSN: 1573-7446
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The results of early pregnancy diagnosis using a milk progesterone assay and a measurement of electrical resistance of the vaginal mucosa made on 135 dairy cows in two herds are compared. The tests were carried out on the day of insemination and 21 days later. Ninety-eight cows were diagnosed as pregnant by both tests. Of these, 92 calved and there were 6 cases of suspected embryonic mortality. Thirty animals were diagnosed as non-pregnant by both tests and none calved. One cow, diagnosed as non-pregnant by the vaginal electrical resistance method, calved later. Of the remaining 6 cows, 4 had extended postparturition anoestrus, one had cystic ovarian disease and another had a long oestrus cycle. The results of this study suggest that measurements of the electrical resistance of the vaginal mucosa in dairy cows may have a part to play in on-farm pregnancy diagnosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02214973
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  • 8
    Electronic Resource
    Electronic Resource
    Experimental intrauterine inoculation of pregnant ewes with ureaplasmas (1985)
    Springer
    Veterinary research communications 9 (1985), S. 35-43 
    Details
    ISSN: 1573-7446
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The pregnancies of 13 ewes which were inoculated intrauterine with one of two strains of ovine ureaplasmas resulted in 9 normal and 3 abnormal births, and one ewe was found to be no longer pregnant on postmortem examination. Vaginal ureaplasma infection was detected in the majority of ewes only after lambing. Of the 12 ewes examined at postmortem, ureaplasmas were isolated from the uterus of 5 out of the 6 necropsied up to 21 days post-partum. The vulvar/preputial areas of the majority of lambs that survived were infected with ureaplasmas for the duration of the experiment, but infections of the nasal cavity and eye areas, detected at birth in 4 lambs, were resolved within 8 days post-partum. The only pathological effects detected that could possibly be attributed to ureaplasma infection were a placentitis in an ewe that aborted, and the resorption of the foetus in another.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02215126
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  • 9
    Electronic Resource
    Electronic Resource
    The physical appearance of the vulva in ureaplasma infected ewes (1985)
    Springer
    Veterinary research communications 9 (1985), S. 123-125 
    Details
    ISSN: 1573-7446
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The vulvar labia of ewes naturally infected with ureaplasma were significantly more swollen and red than those of uninfected ewes. Similar changes were observed following experimental infection of previously uninfected ewes. These differences, although statistically significant, were not sufficiently marked to be useful in diagnosing infection by clinical examination.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02215134
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