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High-k oxides on InAs 100 and 111B surfaces

Al2O3 and HfO2 high-k oxides deposited by atomic layer deposition have been studied on InAs 100 and 111B surfaces. By using a low-frequency fitting routine, interface defect densities have been extracted. In general, both HfO2 and Al2O3 show similar D-it profiles, with a D-it minimum around 2x10(12) eV(-1)cm(-2).

Operational Improvements for Startup Time Reduction in Solar Steam Turbines

Solar steam turbines are subject to high thermal stresses as a result of temperature gradients during transient operation, which occurs more frequently due to the variability of the solar resource. In order to increase the flexibility of the turbines while preserving lifting requirements, several operational modifications for maintaining turbine temperatures during offline periods are proposed and

Health education to prevent anemia among women of reproductive age in southern India

In this study, we used a narrow, but easily measured, indicator of how communication proceeded among health workers and women in Southern India. Anemia prevention during pregnancy was studied using a semistructured questionnaire. Participants included 5 nurses, 10 health aides, and 10 (traditional birth attendants) TBAs working with maternal health care and education, as well as 32 women seeking m

Joint owned companies as instrument of Local Government: Comparative evidence from the Swedish and Italian water sector

The combination of features from the public and private sectors in jointly owned companies imposes challenges to the governance and control mechanisms of these organisations, which have been criticised for lacking accountability. Where there is fragmented ownership, the interests of different owners need to be coordinated. The aim of this article is to consider how such companies can be governed i

On the distribution of saline groundwater in the Poopo Basin, central Bolivian Highland

Lake Poopó is a terminal lake of the Bolivian Altiplano, with high salinity and heavy anthropogenic pollution from centuries of extensive mining activity. This study aims to describe how the water quality of groundwater and surface water system in different subwater-sheds of the Lake Poopó varies with geology and hydrology. Measurements of total dissolved solids (TDS) in wells show groundwater bec