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Search Results: 1 - 10 of 366 matches for " Hisayoshi Okamura "
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Effects of Soup Intake for Fourteen Days on the Mood and the Difference in Cortisol of Awakening and Evening in the Clerical Employees: An Effectiveness Study Trial  [PDF]
Jumpei Yajima, Akira Tsuda, Hisayoshi Okamura, Hidenori Urata, Akira Matsubara, Kengo Mihara, Takashi Isomura, Kazuhiko Takeda, Naoki Midoh
Psychology (PSYCH) , 2015, DOI: 10.4236/psych.2015.69108
Abstract: In this study, an investigation based on an effectiveness study trial without special limitations was carried out regarding how 14 days’ continuous soup intake would change the mood of the participants and their salivary cortisol levels between awakening and evening. The participants consisted of 16 healthy workers who agreed to participate in the experiment. The participants led their normal daily lives without consuming soup for the first 14 days (controlled condition), and then consumed their chosen soup once a day, at approximately 3 p.m., for the next 14 days (soup condition). Their salivary cortisol levels were measured when they woke up in the morning (awakening) and at 5 p.m. on the last day of each condition, while their mood was evaluated by questionnaire at 5 p.m. every day. The irritation-anger score of the soup condition was significantly lower than that of the controlled condition, and the difference in the salivary cortisol level between awakening and evening in the soup condition was significantly higher compared with the controlled condition. As a result, this study suggests that continuous soup intake under conditions of free choice in the afternoon at the workplace may be effective in relieving stress of worker’s body and mind.
Effects of Oral Supplementation with Pyrroloquinoline Quinone on Stress, Fatigue, and Sleep
Masahiko Nakano,Tetsuro Yamamoto,Hisayoshi Okamura,Akira Tsuda
Functional Foods in Health and Disease , 2012,
Abstract: ABSTRACT:Seventeen adult male and female subjects participated in a clinical trial using an open-label trial to evaluate the effectiveness of pyrroloquinoline quinone (PQQ) on stress, fatigue, qualityof life and sleep. They ingested 20 mg of PQQ daily for 8 weeks. Changes in stress, fatigue, quality of life measures and sleep were evaluated using various inventories and questionnaires. For example, the results of the Profile of Mood States-Short Form revealed that all six measures of vigor, fatigue, tension-anxiety, depression, anger-hostility and confusion were significantly improved following PQQ administration compared with scores for thosemeasures before administration of PQQ. Measures for quality of life, appetite, sleep, obsession and pain, also improved significantly. The results of the Oguri-Shirakawa-Azumi Sleep Inventory (Middle Aged and Aged version) showed significant improvement in sleepiness at awakening, sleep onset and maintenance, and sleep duration. For validation, thePittsburgh Sleep Quality Index Japanese version also showed significant improvement in sleep-related behavior. Furthermore, the changes in these global scores were correlated withFunctional Foods in Health and Disease 2012, 2(8):307-324 changes in the cortisol awakening response (R = -0.55), i.e. the effects of PQQ on improvement of sleep quality are supported by a biomarker.
Prevalence and Characteristics of Treatment-Resistant Hypertension among Hypertensive Japanese Outpatients  [PDF]
Keisuke Okamura, Hidenori Urata
International Journal of Clinical Medicine (IJCM) , 2015, DOI: 10.4236/ijcm.2015.69083
Abstract: Aims: To retrospectively investigate the prevalence and characteristics of treatment-resistant hypertension (R-HT) among consecutive hypertensive outpatients, since patients with R-HT are candidates for catheter-based renal sympathetic denervation (RD). Methods: Consecutive hypertensive outpatients (n = 999) were recruited in our hospital. R-HT patients who were candidates for RD had clinic systolic blood pressure > 160 mmHg despite taking three or more antihypertensive drugs including at least one diuretics at higher than standard doses. Results: Our survey indicated that only 26 patients (2.6%) were potential candidates for renal denervation. Candidates for RD showed a significantly higher age (P < 0.005), brain natriuretic peptide level (P = 0.0001), urinary albumin/creatinine excretion ratio in spot urine (P < 0.005), pulse wave velocity (P < 0.01), left ventricular end-diastolic diameter (P < 0.005), and interventricular septal thickness (P < 0.005) than the other 973 patients. Candidates for denervation had a significantly lower hemoglobin (P = 0.0001), serum albumin (P < 0.001), eGFR (P < 0.0005), plasma renin activity (P = 0.0001), and plasma aldosterone level (P < 0.005) than other patients, while their urinary sodium/creatinine ratio was higher, indicating that patients with R-HT appeared to have a high salt intake. Conclusion: Our retrospective clinical survey indicated that only 0.5% of Japanese hypertensive outpatients (5/999 patients) were candidates for RD. Therefore, establishment of hypertension cohort network will be essential to recruit R-HT patients for RD.
New nephropid and glypheid lobsters from the Mesozoic of Japan
Hisayoshi, Kato;Hiroaki, Karasawa;
Revista mexicana de ciencias geológicas , 2006,
Abstract: a new nephropid lobster, hoploparia kamimurai new species is described from the lower cretaceous ishido formation (barremian), gunma prefecture, central japan. two species of glypheid lobsters, glyphea yoshiakii new species and glyphea sp. were obtained from the lower cretaceous arida formation (barremian), wakayama prefecture, southwest japan and the uppermost jurassic to lowermost cretaceous mitarai formation (tithonian-berriasian), gifu prefecture, central japan, respectively. these species are the first records of the fossil glypheidae from japan.
comment: Clinical evaluation of different therapeutic modalities in psoriasis by Pasi score
Hisayoshi Imanishi,Daisuke Tsuruta
Our Dermatology Online , 2013,
On Divergence of Decoherence Factor in Quantum Cosmology
Takashi Okamura
Physics , 1996, DOI: 10.1143/PTP.95.565
Abstract: To discuss the quantum to classical transition in quantum cosmology, we study the decoherence factor and the peak of the Wigner function, which respectively represent the degree of decoherence and the degree to which the classical motion of the Universe is defined, in a Robertson-Walker universe model coupled with a scalar field. It is known that the decoherence factor is divergent in some cases. This implies that perfect decoherence occurs, and classical correlation criterion fails. In this paper we discuss the divergence of the decoherence factor in some detail and obtain the constraints for decoherence factor to be convergent, making use of the arbitrariness defining the reduced density matrix. The result is discussed in connection with the arbitrariness of {\it system/environment} splitting.
On scattering off the extreme Reissner-Nordstr?m black hole in N=2 supergravity
Takashi Okamura
Physics , 1997, DOI: 10.1103/PhysRevD.56.4927
Abstract: The scattering amplitudes for the perturbed fields of the N=2 supergravity about the extreme Reissner-Nordstr\"om black hole is examined. Owing to the fact that the extreme hole is a BPS state of the theory and preserves an unbroken global supersymmetry(N=1), the scattering amplitudes of the component fields should be related to each other. In this paper, we derive the formula of the transformation of the scattering amplitudes.
A Comment on Non-Archimedean Character of Quantum Buoyancy
Takashi Okamura
Physics , 2000,
Abstract: In a gedankenexperiment about the generalized second law (GSL) of black hole thermodynamics, the buoyant force by black hole atmosphere (the acceleration radiation) plays an important role, and then it is significant to understand the nature of the buoyant force. Recently, Bekenstein criticizes that the fluid approximation of the acceleration radiation which is often used in the estimation of the buoyant force is invalid for the case that the size of the target is much less than a typical wavelength of the acceleration radiation, due to the diffractive effect of wave scattering. In this letter, we argue that even if it is correct that we should calculate the buoyant force as a wave scattering process, its implication in the GSL strongly depends on whether there exists any massless scalar field, that is, S-wave scattering. By reconsidering the diffractive effect by S-wave scattering, we show that if some massless scalar field exists, then the GSL can hold without invoking a new physics, such as an entropy bound for matter.
A simple method for the Kramers-Kronig analysis of reflectance spectra measured with diamond anvil cell
H. Okamura
Physics , 2012, DOI: 10.1088/1742-6596/359/1/012013
Abstract: When the optical reflectance spectrum of a sample under high pressure is studied with a diamond anvil cell, it is measured at a sample/diamond interface. Due to the large refractive index of diamond, the resulting reflectance Rd(w) may substantially differ from that measured in vacuum. To obtain optical constants from Rd(w), therefore, the usual Kramers-Kronig (KK) transform cannot be straightforwardly applied, and either a spectral fitting or a modified KK transform has been used. Here we describe an alternative method to perform KK analysis on Rd(w). This method relies on the usual KK transform with an appropriate cutoff and extrapolation to Rd(w), and may offer a simpler approach to obtain infrared conductivity from measured Rd(w).
On the range of self-interacting random walks on an integer interval
Kazuki Okamura
Mathematics , 2012,
Abstract: We consider the range of a one-parameter family of self-interacting walks on the integers up to the time of exit from an interval. We derive the weak convergence of an appropriately scaled range. We show that the distribution functions of the limits of the scaled range satisfy a certain class of de Rham's functional equations. We examine the regularity of the limits.
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