E-J properties of Bi2212 tape in the practical current region
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
Authors: Takahashi, K; Awaji, S; Nishijima, G; Watanabe, K; Togano, K
Abstract
In order to investigate the E-J properties in a practical current region, we performed the E-J measurement for a PAIR processed Bi2212 short sample using a pulsed current power supply. We could measure the E-J properties in a wide range of electric fields from 0.05 to 100 muV cm(-1) at transport currents up to a few tens of amperes without the thermal effect due to the Joule heating in a cryocooling condition.
Expression pattern and first functional characterization of riok-1 in Caenorhabditis elegans
GENE EXPRESSION PATTERNS
Authors: Weinberg, Florian; Schulze, Ekkehard; Fatouros, Chronis; Schmidt, Enrico; Baumeister, Ralf; Brummer, Tilman
Abstract
Rio kinases are atypical serine/threonine kinases that emerge as potential cooperation partners in Ras-driven tumors. In the current study, we performed an RNAi screen in Caenorhabditis. elegans to identify suppressors of oncogenic Ras signaling. Aberrant Ras/Raf signaling in C elegans leads to the formation of a multi-vulva (Muv) phenotype. We found that depletion of riok-1, the C elegans orthologue of the mammalian RioK1, suppressed the Muv phenotype. By using a promoter GFP construct, we could show that riok-1 is expressed in neuronal cells, the somatic gonad, the vulva, the uterus and the spermatheca. Furthermore, we observed developmental defects in the gonad upon riok-1 knockdown in a wildtype background. Our data suggest that riok-1 is a modulator of the Ras signaling pathway, suggesting implications for novel interventions in the context of Ras-driven tumors. (C) 2014 Elsevier B.V. All rights reserved.