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Good Scalability of Study of Spin Torque Transfer MRAMs with Perpendicular Magnetization MTJs
H. Yoda,T. Kishi,T. Nagase,M. Yoshikawa,E. Kitagawa,T. Daibou,K. Nishiyama,T. Kai,N. Shimomura,M. Nakayama,M. Amano,H. Aikawa,S. Takahashi,S. Ikegawa,M. Nagamine,J. Ozeki,S. Yuasa,Y. Nakatani,M. Oogan 한국자기학회 2008 한국자기학회 학술연구발표회 논문개요집 Vol.- No.-
Genetic Structure of Mongolian Goat Populations Using Microsatellite Loci Analysis
Takahashi, H.,Nyamsamba, D.,Mandakh, B.,Zagdsuren, Yo.,Amano, T.,Nomura, K.,Yokohama, M.,Ito, S.,Minezawa, M. Asian Australasian Association of Animal Productio 2008 Animal Bioscience Vol.21 No.7
We studied genetic diversity and relationships among Mongolian goat populations on the basis of microsatellite DNA polymorphisms. DNA samples from eight populations (Bayandelger, Ulgii Red, Zavkhan Buural, Sumber, Zalaajinst White, Erchim Black, Dorgon, and Gobi Gurvan Saikhan) from geographically distinct areas of Mongolia were analyzed by using 10 microsatellite DNA markers. Since the 10 markers were highly polymorphic, the genetic characteristics of these native goat populations could be estimated. Genetic diversity within populations, as estimated by the expected heterozygosities, was high, ranging from 0.719 to 0.746, but genetic differentiation between populations was low, representing only 1.7% of the total genetic variation. The results suggest that Mongolian native goat populations still have a semi-wild genetic structure reflecting traditional Mongolian nomadism and the short history of artificial selection. The genetic relationships among the populations were not clear in the neighbor-joining tree generated from the modified Cavalli-Sforza chord genetic distances. By using principal components analysis, the five core populations of Mongolian native goats (Bayandelger, Ulgii Red, Zavkhan Buural, Sumber, and Dorgon) and the populations crossed with Russian breeds (Zalaajinst White, Erchim Black, and Gobi Gurvan Saikhan) were distinguished. There was no correlation between genetic relationships among the populations and the geographical distribution of the populations.
Future lunar mission Active X-ray Spectrometer development: Surface roughness and geometry studies
Naito, M.,Hasebe, N.,Kusano, H.,Nagaoka, H.,Kuwako, M.,Oyama, Y.,Shibamura, E.,Amano, Y.,Ohta, T.,Kim, K.J.,Lopes, J.A.M. Elsevier 2015 Nuclear instruments & methods in physics research. Vol.788 No.-
<P><B>Abstract</B></P> <P>The Active X-ray Spectrometer (AXS) is considered as one of the scientific payload candidates for a future Japanese mission, SELENE-2. The AXS consists of pyroelectric X-ray generators and a Silicon Drift Detector to conduct X-Ray Fluorescence spectroscopy (XRF) on the Moon to measure major elements: Mg, Al, Si, Ca, Ti, and Fe; minor elements: Na, K, P, S, Cr and Mn; and the trace element Ni depending on their concentration. Some factors such as roughness, grain size and porosity of sample, and the geometry of X-ray incidence, emission and energy will affect the XRF measurements precision. Basic studies on the XRF are required to develop the AXS. In this study, fused samples were used to make homogeneous samples free from the effect of grain size and porosity. Experimental and numerical studies on the XRF were conducted to evaluate the effects from incidence and emission angles and surface roughness. Angle geometry and surface roughness will be optimized for the design of the AXS on future missions from the results of the experiment and the numerical simulation.</P>
Aline C. C. Tritto,Mariane T. Amano,Maria E. De Cillo,Vinicius A. Oliveira,Sandro H. Mendes,Caroline Yoshioka,Hamilton Roschel,Niels Olsen S. Camara,Bruno Gualano,Guilherme G. Artioli 한국운동재활학회 2018 JER Vol.14 No.1
The role of plasma glutamine concentration and glutamine supplemen-tation on immunosuppression was investigated in combat athletes. Twenty-three male athletes were randomly assigned to receive gluta-mine (21 g/day, n=12) or placebo (ovalbumin, n=11) for 10 days. Six athletes who did not lose weight served as controls. Athletes were as-sessed 21 days before (-21d), 1 day before (-1d) and 5 days after (+5d) a competition. Weight reduction was similar between glutamine (-8.2%± 4.1%) and placebo (-8.5%±2.4%) and negligible in control (-0.6%±1.4%). In both weight-loss groups, the majority of athletes reported symptoms of upper respiratory symptoms, as assessed by the Wisconsin upper respiratory symptom survey questionnaire. Only two athletes reported symptoms in the control group. Immune cell function remained un-changed throughout the study except for an increase in neutrophil phagocytic activity (placebo: -21d=5,251±2,986; -1d=17,428±22,374; +5d=21,125±21,934; glutamine: -21d=6,096±3,549; -1d=11,029±17,113; +5d=28,186±21,032 FI) and a minor change in monocyte phagocytic activity (placebo: -21d=4,421±3,634; -1d=3,329±6,283; +5d=3,243± 2,553; glutamine: -21d=4,051±3,186; -1d=3,106±2,625; +5d=4,981± 4,598) in both glutamine and placebo after weight loss. Plasma gluta-mine and cortisol remained unchanged across the study. creatine ki-nase levels were increased in placebo (-21d=125.2±54.1; -1d=187.2± 73.5; +5d=111.3±59.1 U/L) but not in glutamine (-21d=136.2±58.2; -1d= 168.8±65.0; +5d=129.7±64.0 U/L). Rapid weight loss increased the fre-quency and severity of infection symptoms, but this was neither associ-ated with plasma glutamine depletion nor counteracted by glutamine supplementation.
Robin, Y.,Evropeitsev, E. A.,Shubina, T. V.,Kirilenko, D. A.,Davydov, V. Yu.,Smirnov, A. N.,Toropov, A. A.,Eliseyev, I. A.,Bae, S. Y.,Kushimoto, M.,Nitta, S.,Ivanov, S. V.,Amano, H. The Royal Society of Chemistry 2019 Nanoscale Vol.11 No.1
<P>Transient photoluminescence (PL) characteristics and localization phenomena in InGaN/GaN core-shell nanorods (NRs) were investigated from 6 K up to 285 K. The NRs exhibit three well-defined PL bands in the near-UV, blue, and green range ascribed to the emission of quantum well (QW) areas situated at the (1.00) sidewalls, (10.1) top facets, and (00.1) tip, respectively. At low temperature, time-resolved PL shows a fast decay time of about 0.5 ns for the semi- and non-polar QWs, while the polar QWs exhibit at least a twice-longer time. Rapid delocalization of carriers above 50 K indicates shallow potential fluctuations in the QWs. At room temperature, the characteristic fast PL decay time of the three QW bands stabilizes around 300 ps. The slow decaying PL components have different characteristic decay times that are explained by additional localization at basal stacking faults (BSFs), taking into account the quantum confined Stark effect. In addition, narrow excitonic luminescence lines are observed in the BSF-enriched polar QWs, providing direct evidence of the impact of the BSF/QW crossings on the optical properties of the NRs. A PL rise time of about 100 ps does not show any deviation between bands. These findings are suggestive of similar transport mechanisms in temperature equilibrium without inter-facet transport between different QWs. We believe that predictable transient characteristics can play a key role in creating uniform NR ensembles for device applications.</P>