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131.
This paper reports on an initial effort to develop survey items that measure Japanese American interpersonal style. Based upon the theoretical work of Miyamoto. Fugita, and Kashima (2002) it was hypothesized that Japanese American interpersonal style is an important factor in their forming large numbers of voluntary organizations both historically and contemporarily. A survey was administered to 344 Japanese Americans living in the Seattle, WA and San Jose, CA areas. An initial pool of 16 items yielded a 10-item measure with three subscales that was related to involvement in Japanese American organizations and other indicators of ethnic community participation.
相似文献132.
N Oriuchi K Miyamoto K Hoshino J Imai Y Takahashi S Sakai A Shimada K Endo 《Canadian Metallurgical Quarterly》1997,18(5):400-404
Radionuclide renography has a role in evaluating perfusion of transplanted kidneys. In the course of rejection, cortical perfusion decreases before urinary excretion changes. Based on the facts that 99Tcm-MAG3 has different pharmacokinetics and shows a higher kidney-to-background count ratio than 99Tcm-DTPA, we postulated that 99Tcm-MAG3 was a sensitive and reproducible agent to measure cortical perfusion of transplanted kidneys. To clarify the feasibility of using 99Tcm-MAG3 to measure the cortical perfusion index (CPI), sequential renography was performed using 99Tcm-DTPA and 99Tcm-MAG3 in 14 patients with stable renal transplants, who had changes in serum creatinine concentration of less than 50% between the two studies. The CPI was calculated with 99Tcm-DTPA and 99Tcm-MAG3 and these were then compared and correlated with concurrent serum creatinine concentration. The CPI with 99Tcm-MAG3 was 1.43 times that with 99Tcm-DTPA in patients with changes in serum creatinine concentration equal to or less than 20%, and regression analysis revealed that the difference in CPI was larger in patients with more severely decreased renal perfusion than in patients with normal or mildly decreased renal perfusion. This preliminary study has indicated that the CPI with 99Tcm-MAG3 is a sensitive index for detecting changes in renal function, and thus is a feasible indicator of cortical perfusion when evaluating the rejection of transplanted kidneys. 相似文献
133.
Susceptibility to intergranular corrosion of asymmetric grain boundaries in pure copper was well correlated with a geometric criteria, i.e. the effective interplanar spacing of grain boundaries rather than coincidence site lattice (CSL) scheme if we rationally assume that the grain boundary structure relaxes to be formed by low-index planes, therefore resulting in high interplanar spacing. 相似文献
134.
Gain and the threshold of three-dimensional quantum-box lasers 总被引:7,自引:0,他引:7
Gain and threshold current density are analyzed for quantum-box lasers where electrons are confined in quantum well three-dimensionally, based on the density-matrix theory of semiconductor lasers with relaxation broadening. The electronic dipole moment and its polarization dependence are first analyzed, and it is shown that the gain becomes maximum when the electric field of light is parallel to the longest side of the quantum box. Calculated gain is about 10 times that of bulk crystal for 100 Å × 100 Å × 100 Å GaAs/Ga0.8 Al0.2 As quantum box, and 15 times for Ga0.47 In0.53 As/InP quantum box with the same size, respectively. The threshold current density are 45 A/cm2and 62 A/cm2for GRINSCH GaAs/(Ga0.8 Al0.2 As-Ga0.4 Al0.6 As) and Ga0.47 In0.53 As/(Ga0.28 In0.72 As0.6 P0.4 -InP), respectively, where for the GaInAs/ GaInAsP/InP system the intervalence band absorption and nonradiative recombinations have been assumed to be the same as those obtained for bulk crystals experimentally. These results show the possibility of remarkable reduction in the laser threshold by the quantum-box structures. 相似文献
135.
136.
137.
Hiroyuki Usui Ousuke Miyamoto Teruaki Nomiyama Yuji Horie Tomoyuki Miyazaki 《Solar Energy Materials & Solar Cells》2005,86(1):123-134
The film electrodes of TiO2, which have two functions of opto-electric conversion and storage of electrochemical energy, were prepared by pulsed laser deposition. To investigate the relationship between the photo-rechargeability and the surface structure, the TiO2 film electrodes with different surface morphology were prepared by changing the inert gas pressure during the deposition. The photo-charged quantity was found to be proportional to the third power of the rms of surface roughness. The results suggest that not only the surface but also the interstices between crystal grains near the surface contribute to the photo-charging with low photo-emf. 相似文献
138.
Fuma S Ban-nai T Doi M Fujimori A Ishii N Ishikawa Y Kawaguchi I Kubota Y Maruyama K Miyamoto K Nakamori T Takeda H Watanabe Y Yanagisawa K Yasuda T Yoshida S 《Radiation protection dosimetry》2011,146(1-3):295-298
Some studies for radiological protection of the environment have been made at the National Institute of Radiological Sciences (NIRS). Transfer of radionuclides and related elements has been investigated for dose estimation of non-human biota. A parameter database and radionuclide transfer models have been also developed for the Japanese environments. Dose (rate)-effect relationships for survival, growth and reproduction have been investigated in conifers, Arabidopsis, fungi, earthworms, springtails, algae, duckweeds, daphnia and medaka. Also genome-wide gene expression analysis has been carried out by high coverage expression profiling (HiCEP). Effects on aquatic microbial communities have been studied in experimental ecosystem models, i.e., microcosms. Some effects were detected at a dose rate of 1 Gy day(-1) and were likely to arise from interspecies interactions. The results obtained at NIRS have been used in development of frameworks for environmental protection by some international bodies, and will contribute to environmental protection in Japan and other Asian countries. 相似文献
139.
Tautenhahn R Patti GJ Kalisiak E Miyamoto T Schmidt M Lo FY McBee J Baliga NS Siuzdak G 《Analytical chemistry》2011,83(3):696-700
Mass spectrometry-based untargeted metabolomics often results in the observation of hundreds to thousands of features that are differentially regulated between sample classes. A major challenge in interpreting the data is distinguishing metabolites that are causally associated with the phenotype of interest from those that are unrelated but altered in downstream pathways as an effect. To facilitate this distinction, here we describe new software called metaXCMS for performing second-order ("meta") analysis of untargeted metabolomics data from multiple sample groups representing different models of the same phenotype. While the original version of XCMS was designed for the direct comparison of two sample groups, metaXCMS enables meta-analysis of an unlimited number of sample classes to facilitate prioritization of the data and increase the probability of identifying metabolites causally related to the phenotype of interest. metaXCMS is used to import XCMS results that are subsequently filtered, realigned, and ultimately compared to identify shared metabolites that are up- or down-regulated across all sample groups. We demonstrate the software's utility by identifying histamine as a metabolite that is commonly altered in three different models of pain. metaXCMS is freely available at http://metlin.scripps.edu/metaxcms/. 相似文献
140.
Glass welding by ultrashort laser pulses allows joining without the need of an absorber or a preheating and postheating process. However, cracks generated during the welding process substantially impair the joining strength of the welding seams. In this paper a sample preparation method is described that prevents the formation of cracks. The measured joining strength of samples prepared by this method is substantially higher than previously reported values. 相似文献