117 research outputs found
A quantum probabilistic approach to Hecke algebras for -adic
The subject of the present paper is an application of quantum probability to
-adic objects. We give a quantum-probabilistic interpretation of the
spherical Hecke algebra for , where is a -adic field. As
a byproduct, we obtain a new proof of the Fourier inversion formula for
Borehole video observation of Langhovde Glacier, Antarctica
第3回極域科学シンポジウム 横断セッション「海・陸・氷床から探る後期新生代の南極寒冷圏環境変動」11月27日(火) 国立国語研究所 2階講
The change of terminus and ice velocity field and grounding line estimation in Langhovde Glacier, Antarctica.
第3回極域科学シンポジウム 横断セッション「海・陸・氷床から探る後期新生代の南極寒冷圏環境変動」11月27日(火) 国立国語研究所 2階講
The limit theorem with respect to the matrices on non-backtracking paths of a graph
We give a limit theorem with respect to the matrices related to
non-backtracking paths of a regular graph. The limit obtained closely resembles
the th moments of the arcsine law. Furthermore, we obtain the asymptotics of
the averages of the th Fourier coefficients of the cusp forms related to
the Ramanujan graphs defined by A. Lubotzky, R. Phillips and P. Sarnak
Lattice sums of -Bessel functions, theta functions, linear codes and heat equations
We extend a certain type of identities on sums of -Bessel functions on
lattices, previously given by G. Chinta, J. Jorgenson, A Karlsson and M.
Neuhauser. Moreover we prove that, with continuum limit, the transformation
formulas of theta functions such as the Dedekind eta function can be given by
-Bessel lattice sum identities with characters. We consider analogues of
theta functions of lattices coming from linear codes and show that sums of
-Bessel functions defined by linear codes can be expressed by complete
weight enumerators. We also prove that -Bessel lattice sums appear as
solutions of heat equations on general lattices. As a further application, we
obtain an explicit solution of the heat equation on whose
initial condition is given by a linear code
Hot water drilling and measurements beneath the grounding zone of Langhovde Glacier, East Antarctica
第3回極域科学シンポジウム 横断セッション「海・陸・氷床から探る後期新生代の南極寒冷圏環境変動」11月27日(火) 国立国語研究所 2階講
Anti-Obesity and Anti-Diabetic Effects of Acacia Polyphenol in Obese Diabetic KKAy Mice Fed High-Fat Diet
Acacia polyphenol (AP) extracted from the bark of the black wattle tree (Acacia meansii) is rich in unique catechin-like flavan-3-ols, such as robinetinidol and fisetinidol. The present study investigated the anti-obesity/anti-diabetic effects of AP using obese diabetic KKAy mice. KKAy mice received either normal diet, high-fat diet or high-fat diet with additional AP for 7 weeks. After the end of administration, body weight, plasma glucose and insulin were measured. Furthermore, mRNA and protein expression of obesity/diabetic suppression-related genes were measured in skeletal muscle, liver and white adipose tissue. As a result, compared to the high-fat diet group, increases in body weight, plasma glucose and insulin were significantly suppressed for AP groups. Furthermore, compared to the high-fat diet group, mRNA expression of energy expenditure-related genes (PPARα, PPARδ, CPT1, ACO and UCP3) was significantly higher for AP groups in skeletal muscle. Protein expressions of CPT1, ACO and UCP3 for AP groups were also significantly higher when compared to the high-fat diet group. Moreover, AP lowered the expression of fat acid synthesis-related genes (SREBP-1c, ACC and FAS) in the liver. AP also increased mRNA expression of adiponectin and decreased expression of TNF-α in white adipose tissue. In conclusion, the anti-obesity actions of AP are considered attributable to increased expression of energy expenditure-related genes in skeletal muscle, and decreased fatty acid synthesis and fat intake in the liver. These results suggest that AP is expected to be a useful plant extract for alleviating metabolic syndrome
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