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51.
Eric J Baitchman Paul P Calle Stephanie B James Michael J Linn Bonnie L Raphael 《Journal of zoo and wildlife medicine》2006,37(2):182-185
Two adult Wied's marmosets (Callithrix kuhlii) presented with jaundice, anemia, and weight loss. Death of one individual was attributed to renal tubular necrosis; liver and kidney were positive for Leptospira antigen by immunohistochemical (IHC) staining. The second animal was negative for antigen by IHC staining, but serologically positive for Leptospira borgpetersenii serovar ballum with an eightfold titer increase in paired samples, and was euthanized because of unresponsiveness to treatment. Environmental contamination by mice was suspected as the Leptospira source. 相似文献
52.
F. Calle J. C. Perez W. Gaitán N. Morante H. Ceballos G. Llano E. Alvarez 《Euphytica》2005,144(1-2):177-186
There is a limited knowledge on the inheritance of traits with agronomic relevance in cassava. A diallel study among 10 parental
clones was conducted in the acid-soils environment in the eastern savannas of Colombia. Thirty clones were obtained for each
F1 cross. Each clone was represented by six plants, which were distributed in three replications at two locations. Therefore,
the same 30 genotypes of each F1 cross were planted in the three replications at the two locations. Analysis of variance suggested
significant effects for five of the six variables analyzed (harvest index, dry matter content, height of first branching,
reaction to super elongation disease, and plant type scores). Fresh root yield showed strong genotype × environment interaction
and differences between crosses reached statistical significance in only one of the two environments analyzed. General and
specific combining ability effects and their interaction with the environment were significant for most of the variables as
well. Results suggested that dominance plays an important role particularly in the cases of fresh root yield and harvest index. 相似文献
53.
Büttner T Geier J Frison G Harmer J Calle C Schweiger A Schönberg H Grützmacher H 《Science (New York, N.Y.)》2005,307(5707):235-238
Metal-stabilized phenoxyl radicals appear to be important intermediates in a variety of enzymatic oxidations. We report that transition metal coordination also supports an aminyl radical, resulting in a stable crystalline complex: [Rh(I)(trop2N.)(bipy)]+OTf- (where trop is 5-H-dibenzo[a,d]cycloheptene-5-yl, bipy is 2,2'-bipyridyl, OTf- is trifluorosulfonate). It is accessible under mild conditions by one-electron oxidation of the amide complex [Rh(I)(trop2N)(bipy)], at a potential of -0.55 volt versus ferrocene/ferrocenium. Both electron paramagnetic resonance spectroscopy and density functional theory support 57% localization of the unpaired spin at N. In reactions with H-atom donors, the Rh-coordinated aminyl behaves as a nucleophilic radical. 相似文献