465 research outputs found
Notch: Filling a Hole in T Helper 2 Cell Differentiation
In this issue of Immunity, Amsen et al. (2007) and Fang et al. (2007) propose a direct role for Notch signaling in the expression of GATA-3 transcription factor and T helper 2 cell differentiation
Recent progress in silica aerogel Cherenkov radiator
In this paper, we present recent progress in the development of hydrophobic
silica aerogel as a Cherenkov radiator. In addition to the conventional method,
the recently developed pin-drying method for producing high-refractive-index
aerogels with high transparency was studied in detail. Optical qualities and
large tile handling for crack-free aerogels were investigated. Sufficient
photons were detected from high-performance aerogels in a beam test.Comment: Proceedings of 2nd International Conference on Technology and
Instrumentation in Particle Physics (TIPP 2011), to be published in Physics
Procedia, 8 pages, 7 figure
Light Higgs boson scenario in the SUSY seesaw model
It is demonstrated that the light Higgs boson scenario, which the lightest
Higgs mass is less than the LEP bound, mh > 114.4 GeV, is consistent with the
SUSY seesaw model. With the assumptions of the universal right-handed neutrino
mass and the hierarchical mass spectrum of the ordinary neutrinos, the bounds
for the right-handed neutrino mass is investigated in terms of lepton flavor
violating charged lepton decays. We also discuss the effect of the modification
of renormalization group equations by the right-handed neutrinos on the b to s
gamma process and the relic abundance of dark matter in the light Higgs boson
scenario.Comment: 17 pages, 5 figure
Robot arm system for automatic satellite capture and berthing
Load control is one of the most important technologies for capturing and berthing free flying satellites by a space robot arm because free flying satellites have different motion rates. The performance of active compliance control techniques depend on the location of the force sensor and the arm's structural compliance. A compliance control technique for the robot arm's structural elasticity and a consideration for an end-effector appropriate for it are presented in this paper
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