168 research outputs found
Assessment of Growth Disturbance in Japanese Children with IBD
In Japan, there is as yet no report on growth retardation in children with IBD. We therefore investigated the cause of growth retardation in Japanese children with IBD. We investigated the height, body weight, serum levels of albumin, IGF-I, CRP, and cytokines, and the amount of corticosteroid administered in children with Crohn's disease (CD, n = 15) and ulcerative colitis (UC, n = 18). Our results suggest that growth retardation is already present before the initial visit in children with CD, and chronic inflammation may be responsible this growth disturbance. Moreover, the amount of PSL used may contribute to growth retardation by decreasing the serum levels of IGF-I in children with IBD
Dependence of alkyl-substituent length for bulk heterojunction solar cells utilizing 1,4,8,11,15,18,22,25-octaalkylphthalocyanine
Tetsuro Hori, Yasuo Miyake, Tetsuya Masuda, Takeshi Hayashi, Kaoru Fukumura, Hiroyuki Yoshida, Akihiko Fujii, Masanori Ozaki, and Yo Shimizu "Dependence of alkyl-substituent length for bulk heterojunction solar cells utilizing 1,4,8,11,15,18,22,25-octaalkylphthalocyanine," Journal of Photonics for Energy 2(1), 021004 (2 March 2012). DOI: https://doi.org/10.1117/1.JPE.2.02100
Ambipolar Carrier Transport of Discotic Liquid Crystalline Phthalocyanine and Its Application for Solar Cells
Low-temperature Magnetic Fluctuations Investigated by Te-NMR on the Uranium-based Superconductor UTe
To investigate the static and dynamic magnetic properties on the
uranium-based superconductor UTe, we measured the NMR Knight shift
and the nuclear spin-lattice relaxation rate in by
Te-NMR on a Te-enriched single-crystal sample. in is much smaller than in and , and
magnetic fluctuations along each axis are derived from the measured in
parallel to all three crystalline axes. The magnetic fluctuations are
almost identical at two Te sites and isotropic at high temperatures, but become
anisotropic below 40 K, where heavy-fermion state is formed. The character of
magnetic fluctuations in UTe is discussed with the comparison to its static
susceptibility and the results on other U-based superconductors. It is
considered that the magnetic fluctuations probed with the NMR measurements are
determined by the magnetic properties inside the two-leg ladder formed by U
atoms, which are dominated by the = 0 ferromagnetic fluctuations.Comment: 10 pages, 6 figures
125Te-NMR Study on a Single Crystal of Heavy Fermion Superconductor UTe2
We report 125Te-NMR studies on a newly discovered heavy fermion
superconductor UTe2. Using a single crystal, we have measured the 125Te-NMR
Knight shift K and spin-lattice relaxation rate 1/T1 for fields along the three
orthorhombic crystal axes. The data confirm a moderate Ising anisotropy for
both the static (K) and dynamical susceptibilities (1/T1) in the paramagnetic
state above about 20 K. Around 20 K, however, we have observed a sudden loss of
NMR spin-echo signal due to sudden enhancement of the NMR spin-spin relaxation
rate 1/T2, when the field is applied along the easy axis of magnetization (=a
axis). This behavior suggests the development of longitudinal magnetic
fluctuations along the a axis at very low frequencies below 20 K.Comment: 5 pages, 7 figures, accepted for publication in J. Phys. Soc. Jp
Large Reduction in the -axis Knight Shift on UTe with = 2.1 K
Spin susceptibility in the superconducting (SC) state was measured in the
higher-quality sample of uranium-based superconductor UTe by using
Knight-shift measurements for a magnetic field along all three crystalline
axes. In the higher-quality sample, the SC transition temperature
is about 2.1 K, and the residual electronic term in the specific heat is almost
zero. The NMR linewidth becomes narrower and is almost half of that in the
previous sample with K when and .
Although the Knight-shift behavior was not so different from the previous
results for , and , a large reduction in Knight shift along
the axis was observed, in contrast with the previous -axis Knight shift
result. We discuss the origin of the difference between the previous and
present results, and the possible SC state derived from the present results.Comment: 7 pages, 6 figures, including supplemental material
A prospective cohort study of soy product intake and stomach cancer death
The relationship between intake of soy products and death from stomach cancer was examined in a community-based prospective study of Japanese men and women in Takayama, Japan. Over 7 years of follow-up, 121 deaths from stomach cancer (81 men and 40 women) occurred among 30 304 (13 880 men and 16 424 women) participants who were at least 35 years of age. Diet including the intake of soy products and isoflavones was assessed by a validated semiquantitative food–frequency questionnaire at the beginning of the study. In men, the highest compared to the lowest tertile of total soy product intake was significantly inversely associated with death from stomach cancer after controlling for covariates (hazard ratios=0.50; 95% confidence intervals (CIs) 0.26-0.93, P for trend=0.03). Decreased hazard ratios for the highest compared to the lowest tertiles of total soy product intake (hazard ratios=0.49; 95% CI 0.22–1.13) was observed in women, although this association was of marginal significance. These data suggest that soy intake may reduce the risk of death from stomach cancer
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