Resistivity measurements were performed on Pr1−xLaxOs4Sb12 single crystals at temperatures down to 20 mK and in fields up to 18 T. The results for dilute-Pr samples x=0.3 and 0.67 are consistent with model calculations performed assuming a singlet crystalline-electric-field CEF ground state. The residual resistivity of these crystals features a smeared step centered around 9 T, the predicted cr...

M. Reehuis,1 C. Ulrich,2,3 P. M. Abdala,4 P. Pattison,4,5 G. Khaliullin,6 J. Fujioka,7 S. Miyasaka,7 Y. Tokura,7,8 and B. Keimer6 1Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany 2School of Physics, The University of New South Wales, Sydney, NSW 2052, Australia 3Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW 2234, Australia 4Swiss-Norweg...

X-Ray diffraction, ac susceptibility and electrical resistivity measurements were performed in order to investigate the effect of Ag substitution for Pr in the polycrystalline Pr1−xAgxMnO3 (0.0≤x≤0.25) manganites. The XRD results show that the samples crystallize in the O’orthorhombic structure with a cooperative Jahn-Teller deformation. We give evidence that the Ag is not substituted at the Pr...

In an initial attempt to characterise single-spore isolates from Metarhizium anisopliae wild-type strain V275, three genetically identical spontaneous pr1A- and pr1B-deficient mutants were detected. These mutants were identified by Nested-PCR amplification and verified by Southern hybridisation. Sequencing and comparison of the highly conserved sequences of 28S rDNA domains 9-11 confirmed that ...

We have raised antisera against human prothrombin activation fragment F2 in rabbits and have chromatographed the respective immunoglobulin G fractions on prothrombin-Sepharose, Pr1-Sepharose, and F2-Sepharose immunoadsorbents. The specific antibody population obtained was utilized to construct a double antibody radioimmunoassay capable of measuring as little as 0.8 ng/ml of this component. Our ...

Glufosinate ammonium diminished developments of rice (Oryza sativa) blast and brown leaf spot in 35S:bar-transgenic rice. Pre- and postinoculation treatments of this herbicide reduced disease development. Glufosinate ammonium specifically impeded appressorium formation of the pathogens Magnaporthe grisea and Cochliobolus miyabeanus on hydrophobic surface and on transgenic rice. In contrast, con...

The use of replication-deficient adenoviral vectors in gene therapy may become a powerful method to achieve efficient but safe transfer of anti-tumor agents. Introduction of the wild-type p53 gene into tumor cells has, in general, been associated with growth suppression. In this study, infection of androgen-independent human prostate Tsu-pr1 cells lacking functional p53 alleles resulted in high...