938 research outputs found
GENDER INEQUALITY AT WORK
This is a chapter of the 3rd international Survey, promoted by Denki Rengo Japan Trade Union in electrical and electronic machine companies of 14 countries. The purpose is to examine gender inequality at work focusing not only job segregation and pay differentials, but also organisational change (i.e. traditional and innovative firms). These points of view are apparently far away, but really interlaced. The innovative character of the company gives some influences to change gender relation within the workplace, at least, on the structural level. The system of gender segregation as a combination of social and cultural change shows us that some positive tendency for female workers, however, at the same time, we should notice that managerial and professional jobs firmly dominate by male workers. The problem is that, where society as a whole is strongly gender-marked, this will be reproduced, albeit in a different form, in the labour market. At the same time, there is nothing irrevocable about this: the awareness and intentions of the subjects are clearly important.
Charge-noise-free Lateral Quantum Dot Devices with Undoped Si/SiGe Wafer
We develop quantum dots in a single layered MOS structure using an undoped
Si/SiGe wafer. By applying a positive bias on the surface gates, electrons are
accumulated in the Si channel. Clear Coulomb diamond and double dot charge
stability diagrams are measured. The temporal fluctuation of the current is
traced, to which we apply the Fourier transform analysis. The power spectrum of
the noise signal is inversely proportional to the frequency, and is different
from the inversely quadratic behavior known for quantum dots made in doped
wafers. Our results indicate that the source of charge noise for the doped
wafers is related to the 2DEG dopant.Comment: Proceedings of the 12th Asia Pacific Physics Conferenc
Scheme for calculating the orbital-dependent exchange-correlation potential using the virial theorem: Application to atomic systems
We present a density-functional scheme for calculating the orbital-dependent exchange-correlation potential using the virial theorem as a sum rule. In order to check the validity of this scheme, atomic-structure calculations only with the exchange potential are performed. The accuracy of this scheme is shown to be comparable to that of the optimized effective potential (OEP) method, while the computational workload is extremely reduced compared to the OEP method.ArticlePHYSICAL REVIEW A. 78(1):012501 (2008)journal articl
Density functional scheme for calculating the pair density
The density functional scheme for calculating the pair density is presented
by means of the constrained-search technique. The resultant single-particle
equation takes the form of the modified Hartree-Fock equation which contains
the kinetic contribution of the exchange-correlation energy functional as the
correlation potential. The practical form of the kinetic contribution is also
proposed with the aid of the scaling relations of the kinetic energy
functionals.Comment: 5 page
The role of convective overshooting clouds in tropical stratosphere-troposphere dynamical coupling
International audienceThis paper investigates the role of deep convection and overshooting convective clouds in stratosphere–troposphere dynamical coupling in the tropics during two large major stratospheric sudden warming events in January 2009 and January 2010. During both events, convective activity and precipitation increased in the equatorial Southern Hemisphere as a result of a strengthening of the Brewer–Dobson circulation induced by enhanced stratospheric planetary wave activity. Correlation coefficients between variables related to the convective activity and the vertical velocity were calculated to identify the processes connecting stratospheric variability to the troposphere. Convective overshooting clouds showed a direct relationship to lower stratospheric upwelling at around 70–50 hPa. As the tropospheric circulation change lags behind that of the stratosphere, outgoing longwave radiation shows almost no simultaneous correlation with the stratospheric upwelling. This result suggests that the stratospheric circulation change first penetrates into the troposphere through the modulation of deep convective activity
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