260 research outputs found
Effects of laser wavelength and density scalelength on absorption of ultrashort intense lasers on solid-density targets
Hot electron temperatures and electron energy spectra in the course of
interaction between intense laser pulse and overdense plasmas are reexamined
from a viewpoint of the difference in laser wavelength. The hot electron
temperature measured by a particle-in-cell simulation is scaled by rather
than at the interaction with overdense plasmas with fixed ions,
where and are the laser intensity and wavelength, respectively.Comment: 12th International Congress on Plasma Physics, 25-29 October 2004,
Nice (France
Multi-View Neural Surface Reconstruction with Structured Light
Three-dimensional (3D) object reconstruction based on differentiable
rendering (DR) is an active research topic in computer vision. DR-based methods
minimize the difference between the rendered and target images by optimizing
both the shape and appearance and realizing a high visual reproductivity.
However, most approaches perform poorly for textureless objects because of the
geometrical ambiguity, which means that multiple shapes can have the same
rendered result in such objects. To overcome this problem, we introduce active
sensing with structured light (SL) into multi-view 3D object reconstruction
based on DR to learn the unknown geometry and appearance of arbitrary scenes
and camera poses. More specifically, our framework leverages the
correspondences between pixels in different views calculated by structured
light as an additional constraint in the DR-based optimization of implicit
surface, color representations, and camera poses. Because camera poses can be
optimized simultaneously, our method realizes high reconstruction accuracy in
the textureless region and reduces efforts for camera pose calibration, which
is required for conventional SL-based methods. Experiment results on both
synthetic and real data demonstrate that our system outperforms conventional
DR- and SL-based methods in a high-quality surface reconstruction, particularly
for challenging objects with textureless or shiny surfaces.Comment: Accepted by BMVC 202
Effect of a mouthrinse containing rice peptide CL(14-25) on early dental plaque regrowth: a randomized crossover pilot study
Development of the salt-reduction and efficacy-maintenance program in Indonesia
We conducted a randomized, controlled trial to examine the effects of a salt-reduction and efficacy-maintenance program on the improvement and maintenance of self-care and self-efficacy in reducing the salt intake of older people with high blood pressure. A total of 51 participants with hypertension/prehypertension in Indonesia were randomly assigned to a control group or one of two intervention groups: salt-reduction training or salt-reduction and efficacy-maintenance. The salt-reduction and efficacy-maintenance group received educational training and a maintenance meeting; the participants\u27 knowledge, attitudes, self-care practices, and self-efficacy significantly improved after training and were maintained after the maintenance meeting. Participants in the salt-reduction training group showed significant effects for the same variables; however, their food salt concentrations rebounded after the maintenance meeting. No significant improvement was found in the control group. The salt-reduction and efficacy-maintenance group participants reported positive effects of salt reduction and different practices based on who prepared their meals. The salt-reduction and efficacy-maintenance group program was effective in improving and maintaining knowledge, attitudes, and self-efficacy of salt-reduction practices and could be applied with community-dwelling older people with high blood pressure. © 2016 John Wiley & Sons Australia, Ltd.Embargor Period 12 month
<Abstract of published report>Inhibitory effect of HSR-6071,a new anti-allergic agent, on experimental asthma in rats and guinea pigs.
<Abstract of published report>Potent inhibitory activity of HSR-6071,a new antiallergic agent, on passive cutaneous anaphylaxis (PCA).
An isomorphous replacement method for efficient de novo phasing for serial femtosecond crystallography.
SACLAのX線自由電子レーザーを用いた新規タンパク質立体構造決定に世界で初めて成功. 京都大学プレスリリース. 2015-09-14.Serial femtosecond crystallography (SFX) with X-ray free electron lasers (XFELs) holds great potential for structure determination of challenging proteins that are not amenable to producing large well diffracting crystals. Efficient de novo phasing methods are highly demanding and as such most SFX structures have been determined by molecular replacement methods. Here we employed single isomorphous replacement with anomalous scattering (SIRAS) for phasing and demonstrate successful application to SFX de novo phasing. Only about 20,000 patterns in total were needed for SIRAS phasing while single wavelength anomalous dispersion (SAD) phasing was unsuccessful with more than 80,000 patterns of derivative crystals. We employed high energy X-rays from SACLA (12.6 keV) to take advantage of the large anomalous enhancement near the LIII absorption edge of Hg, which is one of the most widely used heavy atoms for phasing in conventional protein crystallography. Hard XFEL is of benefit for de novo phasing in the use of routinely used heavy atoms and high resolution data collection
Promotion of IL-4- and IL-5-dependent differentiation of anti-μ-primed B cells by ascorbic acid 2-glucoside
The stable ascorbic acid derivative 2-O-alpha-D-glucopyranosyl-L-ascorbic acid (AA-2G) was used to investigate the role of ascorbic acid (AA) in B cell differentiation in vitro. AA-2G is stable in a solution unlike AA but is hydrolyzed by cellular alpha-glucosidase to release AA. Mouse spleen B cells were primed for 2 days with an anti-mu antibody in the presence of interleukin (IL)-4 and IL-5 and then washed and recultured with AA-2G in the presence of IL-4 and IL-5. AA-2G, but not AA, dose-dependently increased IgM production, the greatest enhancement being 150% at concentrations of more than 0.5 mM. In the absence of IL-4 and IL-5, primed B cells produced a negligible amount of IgM, and AA-2G had no effect. AA-2G-induced IgM production in the presence of IL-4 and IL-5 was inhibited by the alpha-glucosidase inhibitor castanospermine. Intracellular AA content, depleted during the priming period, increased by adding AA-2G at the start of reculture. Treatment of B cells with AA-2G resulted in an increase in the number of IgM-secreting cells, CD138-positive cells and CD45R/B220-negative cells. The number of viable cells in untreated cultures decreased gradually, but the decrease was significantly attenuated by AA-2G, resulting in about 70% more viable cells in AA-2G-treated cultures. AA-2G caused a slight but reproducible enhancement of DNA synthesis and a slight decrease in the number of cells with a sub-G1 DNA content. These results demonstrated that AA released from AA-2G enhanced cytokine-dependent IgM production in anti-mu-primed B cells and suggest that its effect is caused through promoting the differentiation of B cells to plasma cells and attenuating the gradual decrease in the number of viable cells
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