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  • 1
    Digitale Medien
    Digitale Medien
    Molecular mapping of a locus controlling resistance to Albugo candida in Indian mustard (2001)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 120 (2001), S. 0 
    Details
    ISSN: 1439-0523
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Brassica juncea (L.) Czern & Coss is widely grown as an oilseed crop in the Indian subcontinent. White rust disease caused by Albugo candida (Pers.) Kuntze is a serious disease of this crop causing considerable yield loss every year. The present study was undertaken to identify molecular markers for the locus controlling white rust resistance in a mustard accession, BEC-144, using a set of 94 recombinant inbred lines (RILs). The screening of individual RILs using an isolate highly virulent on the popular Indian cultivar ‘Varuna’ revealed the presence of a major locus for rust resistance in BEC-144. Based on screening of 186 decamer primers employing bulked segregant analysis (BSA), 11 random amplified polymorphic DNA markers were identified, which distinguished the parental lines and the bulks. Five of these markers showed linkage with the rust resistance locus. Two markers, OPN0l000 and OPB061000, were linked in coupling and repulsion phases at 9.9 cM and 5.5 cM, respectively, on either side of the locus. The presence of only two double recombinants in a population of 94 RILs suggested that the simultaneous use of both markers would ensure efficient transfer of the target gene in mustard breeding programmes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1439-0523.2001.00658.x
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  • 2
    Digitale Medien
    Digitale Medien
    Case 1 (2002)
    Oxford, UK : Blackwell Science Ltd
    Clinical and experimental dermatology 27 (2002), S. 0 
    Details
    ISSN: 1365-2230
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2230.2002.01134.x
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  • 3
    Digitale Medien
    Digitale Medien
    Case 4 (2001)
    Oxford, UK : Blackwell Science Ltd
    Clinical and experimental dermatology 26 (2001), S. 0 
    Details
    ISSN: 1365-2230
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2230.2001.00743.x
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  • 4
    Digitale Medien
    Digitale Medien
    Sporotrichoid presentations in leprosy (2000)
    Oxford, UK : Blackwell Science Ltd
    Clinical and experimental dermatology 25 (2000), S. 0 
    Details
    ISSN: 1365-2230
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Two adult patients of leprosy, one woman and one man, presented with a clinical picture simulating sporotrichosis. The skin and regional nerve trunk was affected in one, and in the other the disease was confined to the nerve. Both had features of an upgrading reaction following anti-leprosy therapy; this was seen as erosion and scarring of the plaque, and acute onset of abscesses along the easily palpable and thickened nerve that ruptured through the skin. The diagnosis was supported by histopathology. In the light of other infections that give rise to a sporotrichoid pattern of infection it is concluded that leprosy should also be included in this category so that early diagnosis and use of corticosteroids can be implemented quickly to prevent nerve destruction.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1046/j.1365-2230.2000.00623.x
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  • 5
    Digitale Medien
    Digitale Medien
    Geometric bounds on Kaluza–Klein masses (2001)
    Springer
    The European physical journal 20 (2001), S. 193-199 
    Details
    ISSN: 1434-6052
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract. We point out geometric upper and lower bounds on the masses of bosonic and fermionic Kaluza–Klein excitations in the context of theories with large extra dimensions. The characteristic compactification length scale is set by the diameter of the internal manifold. Based on geometrical and topological considerations, we find that certain choices of compactification manifolds are more favored for phenomenological purposes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s100520100643
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  • 6
    Digitale Medien
    Digitale Medien
    Cosmologies with Variable G and Λ from Action Principle (2000)
    Springer
    General relativity and gravitation 32 (2000), S. 1439-1447 
    Details
    ISSN: 1572-9532
    Schlagwort(e): Variable gravitation constant ; variable
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Cosmologies with variable G and Λ are developed in this paper from an action principle, and some exact cosmological models are presented. These models indicate that the era of variable G and Λ must have occurred, if at all, prior to other possible eras like radiation and dust.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1001973832645
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  • 7
    Digitale Medien
    Digitale Medien
    Bianchi Cosmologies with Particle Creation and Bulk Viscosity (2000)
    Springer
    General relativity and gravitation 32 (2000), S. 1429-1438 
    Details
    ISSN: 1572-9532
    Schlagwort(e): Open thermodynamic systems ; Bianchi cosmologies
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract In the context of open thermodynamic systems, we study in this paper the evolution of Bianchi cosmologies with time-dependent bulk viscosity and particle production. The possibility of an initial non-singularity occurs with a suitable choice of parameters as seen in the case of FRW models [Desikan, K. (1997). Gen. Rel. Grav. 29, 435.].
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1001977415807
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  • 8
    Digitale Medien
    Digitale Medien
    Synthesis and phosphorylation of androgen receptor of the mouse brain cortex and their regulation by sex steroids during aging (2000)
    Springer
    Molecular and cellular biochemistry 203 (2000), S. 95-101 
    Details
    ISSN: 1573-4919
    Schlagwort(e): aging ; AR phosphorylation ; AR synthesis ; brain cortex ; sex steroids
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Medizin
    Notizen: Abstract To examine the synthesis and phosphorylation of androgen receptor (AR) and their regulation by sex steroids, adult (24 weeks) and old (65 weeks) male and female mice were gonadectomized and administered with testosterone and estradiol. AR amount, synthesis and phosphorylation were measured in the brain cortex by immunoblotting and immunoprecipitation using antibody raised against rat AR transactivation domain (TAD) which was expressed in E. coli as a fusion protein. We found that the amount of AR was high in adult and declined in old mice of both sexes. Administration of testosterone and estradiol significantly down-regulated the level of AR in old male and adult female. Similarly, the rate of AR synthesis also declined with age. Exogenous treatment of gonadectomized mice with testosterone and estradiol reduced the extent of synthesis significantly in all groups except in old female. No sex-dependent variation was noticed either in the level or synthesis of AR. In contrast, the extent of phosphorylation was higher in old mice of both sexes as compared to their adult counterparts. Testosterone and estradiol supplementation resulted in remarkable increase in AR phosphorylation in all groups. Thus it is evident from our findings that the amount and synthesis of AR decrease but phosphorylation of AR increases in the brain cortex with advancing age of mice and they are regulated by testosterone and estradiol in age and sex-specific manner.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1007064307220
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  • 9
    Digitale Medien
    Digitale Medien
    An analysis of the role of grain size on superplasticity of γ titanium aluminides (2000)
    Springer
    Journal of materials science 35 (2000), S. 147-151 
    Details
    ISSN: 1573-4803
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract The superplastic data for several microcrystalline and submicrocrystalline TiAl alloys has been analyzed to establish the rate controlling mechanism. The results show that the lattice diffusion controlled slip-accommodated grain boundary sliding mechanism is operative for the entire grain size range, 150 nm–20 μm. The detail of the nature of α2 phase, i.e. ordered or disordered, does not influence the kinetics of superplastic flow. The optimum superplastic temperature decreases with the decrease in grain size. The optimum superplastic flow stress shows an intrinsic inverse dependence on the grain size. This grain size dependence of the optimum superplastic flow stress can be explained as the stress required to nucleate dislocations from grain boundary edge during slip accommodation of grain boundary sliding. Superplasticity in nanocrystalline TiAl remains an intriguing possibility because it has the potential for increasing the optimal superplastic strain rate or alternatively, decreasing the superplastic forming temperatures.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1004713220757
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  • 10
    Digitale Medien
    Digitale Medien
    Manifestly covariant analysis of the QED Compton processin $ep\rightarrow e \gamma p$ and $e p \rightarrow e \gamma X $ (2003)
    Springer
    The European physical journal 30 (2003), S. 477-486 
    Details
    ISSN: 1434-6052
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract. We calculate the unpolarized QED Compton scattering cross section in a manifestly covariant way. Our approach allows a direct implementation to be made of the specific kinematical cuts imposed in the experiments, e.g. HERA-H1. We compare the "exact" cross section in terms of the structure functions F 1,2 (x B,Q 2), assuming the Callan-Gross relation, with the one obtained using the equivalent photon approximation (EPA) as well as with the experimental results. We find that the agreement with the EPA is better in $x_{\gamma}$ bins, where $x_{\gamma}$ is the fraction of the longitudinal momentum of the proton carried by the virtual photon, compared to the bins in the leptonic variable x l .
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1140/epjc/s2003-01308-0
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