507 research outputs found
Безопасность медико-санитарных учреждений при стихийных бедствиях - требование времени
Centrul Medicina Calamităţilor al Centrului Naţional Ştiinţifico-Practic Medicină de Urgenţă, Biroul de Coordonare al Organizaţiei Mondiale a Sănătăţii în Republica MoldovaIn the case of the rising number of emergencies and disasters it is vital that healthcare facilities remain able to continue to offer immediate services in the times in which they are most needed. The question of the safety of these healthcare facilities in periods of disasters is an important one world-wide, so much so that in 2009 World Health Day will be dedicated to the protection of health facilities in emergencies and will be celebrated under the motto: “Save lives. Make hospitals safe in emergencies”.
Во время чрезвычайных ситуаций и стихийных бедствий, количество которых постоянно возрастает, работа медико-санитарных учреждений приобретает жизненную значимость. В то же время они также подвержены воздействию ударов стихии, которые могут вывести их из строя, тогда когда они особенно необходимы. В связи с этим проблема безопасности медико-санитарных учреждений при стихийных бедствиях приобретает всё большую актуальность во всём мире. В 2009 году Всемирный День Здоровья будет посвящен защите медицинских учреждений в чрезвычайных ситуациях и пройдет под девизом: „Спасем жизни. Обеспечим безопасность больниц в чрезвычайных ситуациях”
Detecting trends in the quality and productivity of grasslands by analyzing the historical vegetation relevés: A case study from Southeastern Carpathians, Vlădeasa Mountains (Romania)
Grassland ecosystems are essential for biomass production but are prone to degradation if management practices are inappropriate. Thus, it is necessary to optimize grazing management since the grazing practices and grassland status are interconnected. Herbage mass production and forage quality of the plant species are among the most important factors for grazing livestock performance, grassland carrying capacity, and their sustainable management. We employed optimized methods for the analysis of two historical vegetation datasets (from 1970 and 2008), along with the statistical data on livestock numbers and types from three administrative units within the Vlădeasa Mountains area, in the Romanian Carpathians. We looked for trends in grassland quality and productivity and explored their connections to grazing management descriptors and practices. We identified a small but statistically significant decreasing trend between the two periods in both pastoral value (from 63.80 to 61.43) and productivity (from 10.80 t ha-1 to 9.18 t ha-1). The decline in grassland quality and productivity may be associated with the sharp decrease in livestock numbers (from 9,688 LU to 5,085 LU) and the replacement of cattle by sheep as the dominant livestock type. The abandonment of grasslands and traditional practices also increased the deviation from the optimum of the actual stocking rate. This approach can be used as a model for other areas where time-series vegetation data are available from phytosociological literature and/or databases. These insights can be used to design adaptive grazing management plans to optimize grazing management according to the carrying capacity of the grassland ecosystems
Bringing Video Communication to the Community: Opportunities and Challenges
The rise of online social networks, the wide availability of video communication technology and the deployment of high-speed broadband networks together provide the opportunity for video to become a medium for mass social communication among communities. However, current solutions provide poor support for ad hoc social interactions among multiple groups of participants. This position paper summarises the results of more than 5 years’ research to make communication and engagement easier between groups of people separated in space. It shows how communication can be effectively combined with different shared activities, and how the technical capabilities of Communication Orchestration and Dynamic Composition work together to improve the quality of human interactions. The paper also describes ongoing work to develop the Service-Aware Network as a means of optimising the quality of a user’s communication experience while making most efficient use of network resources. We believe these developments could enable video-mediated communication to become an effective and accepted enabler for social communication within community groups globall
Superconductivity in two-band systems with variable charge carrier density. The case of MgB2
The theory of thermodynamic properties of two-band superconductor with
reduced density charge carriers is developed on the base of phonon
superconducting mechanism with strong electron-phonon interaction. This theory
is adapted to describe the behavior of critical temperature Tc, energy gaps
Delta1, Delta2, and the relative jump of electron specific heat (Cs - Cn)/Cn in
the point T = Tc along with the variation of charge carrier density in the
compound MgB2 when substitutional impurities with different valence are
introduced into the system. It is shown, that according to the filling
mechanism of energy bands which overlap on Fermi surface, the quantities Tc,
Delta1, Delta2 decrease when this compound is doped with electrons and remain
constant or weakly change when the system is doped with holes. The theory
qualitatively agrees with the experimental data. Also is shown that the
consideration of inter- and intraband scattering of electrons on impurity
potential improves this agreement.Comment: 19 pages, 6 figures, 1 table. to be published in JETP (first number
2007
Experiments with Distributed Theatre
The Tempest was probably the last play that Shakespeare wrote alone. It is unlikely that he would contemplate it being performed 400 years later, and
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