Nonequilibrium Perturbative Formalism and Spectral Function for the Anderson Model

The present work is based on the nonequilibrium perturbative formalism. There the self-energies are derived up to the forth-order. In consequence, it proves that the nonequilibrium (real-time) perturbative expansion can be connected with the Matsubara imaginary-time perturbative expansion for equilibrium. As the numerical results, the Kondo resonance still disappears for bias voltage exceeding the Kondo temperatures, as observed in experiments of two terminal systems.Comment: Some conclusions and typos are corrected;the derived expressions and numerical results are unchange

Estimation of Power System Inertia Using Nonlinear Koopman Modes

We report a new approach to estimating power system inertia directly from time-series data on power system dynamics. The approach is based on the so-called Koopman Mode Decomposition (KMD) of such dynamic data, which is a nonlinear generalization of linear modal decomposition through spectral analysis of the Koopman operator for nonlinear dynamical systems. The KMD-based approach is thus applicable to dynamic data that evolve in nonlinear regime of power system characteristics. Its effectiveness is numerically evaluated with transient stability simulations of the IEEE New England test system.Comment: 10 pages, 4 figures, conferenc

Study of a high performance evaporative heat transfer surface

An evaporative surface is described for heat pipes and other two-phase heat transfer applications that consists of a hybrid composition of V-grooves and capillary wicking. Characteristics of the surface include both a high heat transfer coefficient and high heat flux capability relative to conventional open-faced screw thread surfaces. With a groove density of 12.6 cm/1 and ammonia working fluid, heat transfer coefficients in the range of 1 to 2 W/sq cm have been measured along with maximum heat flux densities in excess of 20 W/sq cm. A peak heat transfer coefficient in excess of 2.3 W/sq cm was measured with a 37.8 cm/1 hybrid surface

Cell-mediated immunity against digestive organ cancers : leucocyte migration inhibitory factor activity as an immunological parameter

The present study was conducted to investigate the usefulness of the direct leucocyte migration agarose method for studying cell-mediated immunity in vitro. Comparative studies of the purified protein derivative (PPD) skin test and the leucocyte migration inhibition test (LMIT) in which PPD was used as test antigen indicated a significant qualitative and a weak quantitative correlation between these two tests. Furthermore a positive correlation was found between the LMIT and the macrophage migration inhibition test (MIT) using ultrasonicated authochthonous tumor antigen. Comparative studies of the LMIT, MIT, PPD skin and DNCB tests on the same patients showed that cases responding positively to the the PPD skin and DNCB tests tended to respond positively to the LMIT and MIT. Patients with digestive organ cancers were examined by the LMIT. With the advance of cancer, decreased positive test test rates were found. After gastric cancer operations the LMIT findings were divided into two groups: one type changed from positive to negative, and the other type changed from negative to positive. The former response was suggestive of a successful operation, and the latter response was suggestive of a non-curative operation. These results indicated that the direct leucocyte migration inhibition agarose test was useful investigating cell-mediated immunity.</p

Effects of Resistance Training on Autonomic Nervous Function in Older Individuals

Skeletal muscle mass, strength, and function decline with aging are the symptoms that characterize sarcopenia, which has become a significant problem in aging societies. Aging is also associated with arterial stiffness and autonomic nervous dysfunction, leading to increase in the risk of cardiovascular disease (CVD) and mortality. Resistance training (RT) is effective for improving muscle fitness in older individuals as well as young healthy individuals. However, the effects of RT on autonomic nervous function (ANF) in the elderly have not been fully elucidated. The author reviewed the current evidence regarding RT and ANF in older individuals. Whole-body, high-intensity or progressive RT had either no effect on ANF or perhaps an unfavorable effect on ANF. On the other hand, local isometric, moderate-intensity RT may have a beneficial effect on ANF in older individuals. The combination of RT and aerobic exercise had a favorable effect on ANF in older patients with comorbidities. However, the optimal intensity, frequency, and duration of RT for improving ANF in older individuals remain unknown. Further studies with a large number of subjects are warranted

Singing in their genealogical trees : the emergence of contemporary Hawaiian poetry in English

This study is primarily an examination of three contemporary Hawaiian poets. The three poets, Dana Naone Hall, Wayne Kaumuali'i Westlake (1947-1984) and Joseph P. Balaz, are of Hawaiian ancestry, and they are among the first ethnic Hawaiian writers to publish a significant body of contemporary poetry written primarily in English

Physical Activity and Obesity in Adults

Both obesity and physical inactivity are global health problems responsible for the risk increment of non-communicable diseases. Obese individuals usually cannot perform the recommended level of physical activity because of their low physical fitness and comorbidities. The purpose of this chapter is summarizing and evaluating the effects of physical activity on obesity. The author also focuses on the association between non-exercise activity thermogenesis (NEAT) and obesity. The author has reviewed 13 systematic reviews and meta-analyses of randomized controlled trials investigating the effects of physical activity on obesity. Exercise is essential for the management of obesity. However, exercise alone is not sufficient for long-term weight loss and improving cardiovascular disease (CVD) risk factors. Diet seems to be more effective for treating obesity than exercise. On the other hand, exercise improves cardiorespiratory fitness and skeletal muscle fitness, which leads to prevent sarcopenic obesity in the elderly. Exercise therapy should be performed in conjunction with diet therapy to improve obesity. NEAT is the main determinant of variability in daily energy expenditure, which considerably contributes to weight change in humans. The current evidence regarding NEAT is limited; however, NEAT appears to be effective for the management of metabolic diseases as well as weight loss. To reveal the optimal mode of physical activity and to elucidate the effects of NEAT on health beyond weight lowering, further well-designed studies are warranted

Ethnic assimilation: A study of Japanese families in the United States and Hawaii

There are many definitions and possible interpretations of ethnic assimilation. It can mean anything from elevation of economic status and adaptation to new standards of civilization, to changing of the color of skin. However, in the final analysis, ethnic assimilation divides into two phases, physical and cultural. When we speak of physical assimilation, we immediately think of two or more racees blending into a dominant race and losing all former identities. This theory of assimilation may occur in a democratic country but is most improbable