Influence of complex defects on electrophysical properties of GaP light emitting diodes

In order to estimate the role of complex defects on GaP light emitting diodes (LED) operation, luminescent and electrical characteristics of GaP LEDs irradiated with reactor neutrons have been studied. It has been stated that nonradiative levels of radiation defects affect electroluminescence quenching. From the analysis of the tunnel current, the density of dislocations in the depleted part of the p–n junction was obtained. Neutron induced disorder regions do not change the tunnel component of the direct current of red diodes, increasing the dislocation density, because the carrier flow along the “tunnel shunts” is blocked

The case for strategic international alliances to harness nutritional genomics for public and personal health

Nutrigenomics is the study of how constituents of the diet interact with genes, and their products, to alter phenotype and, conversely, how genes and their products metabolise these constituents into nutrients, antinutrients, and bioactive compounds. Results from molecular and genetic epidemiological studies indicate that dietary unbalance can alter gene-nutrient interactions in ways that increase the risk of developing chronic disease. The interplay of human genetic variation and environmental factors will make identifying causative genes and nutrients a formidable, but not intractable, challenge. We provide specific recommendations for how to best meet this challenge and discuss the need for new methodologies and the use of comprehensive analyses of nutrient-genotype interactions involving large and diverse populations. The objective of the present paper is to stimulate discourse and collaboration among nutrigenomic researchers and stakeholders, a process that will lead to an increase in global health and wellness by reducing health disparities in developed and developing countrie

Нетрадиційні конструкції електродинамічних транспортних систем

The arrangements of electro-dynamic transport systems with the flat track structure are described and the fluctuations and stability of levitation motion of their vehicles are evaluated. It is shown that under rational choice of main parameters of the systems a stable levitation motion of the vehicles in straight-line and curvilinear sections of the track is provided.Описаны компоновки электродинамических транспортных систем с плоской путевой структурой и оценены колебания и устойчивость левитационного движения их экипажей. Показано, что при рациональном выборе основных параметров систем обеспечивается устойчивое левитационное движение экипажей в прямолинейных и криволинейных участках пути.Описано компонування електродинамічних транспортних систем із плоскою колійною структурою й оцінені коливання й стійкість левітаційного руху їхніх екіпажів. Показано, що при раціональному виборі основних параметрів систем забезпечується стійкий левітаційний рух екіпажів у прямолінійних і криволінійних ділянках колії

THE ROLE OF THE DIFFUSION DEOXIDATION IN ACID PROCESS

The processes of diffusion deoxidation of the metal the electric furnaces with acid fettling in the production of the component parts for rolling stock are considered. The influence of the preliminary deoxidation of the metal in the furnace on the complex of indexes of the mechanical qualities, the index of the pollution density of metal by nonmetallics, their type and the character of distribution are determined

THE UNCONVENTIONAL DESIGN OF THE ELECTRODYNAMIC TRANSPORT SYSTEMS

The arrangements of electro-dynamic transport systems with the flat track structure are described and the fluctuations and stability of levitation motion of their vehicles are evaluated. It is shown that under rational choice of main parameters of the systems a stable levitation motion of the vehicles in straight-line and curvilinear sections of the track is provided

Horizons in nutritional science : The case for strategic international alliances to harness nutritional genomics for public and personal health.

Nutrigenomics is the study of how constituents of the diet interact with genes, and their products, to alter phenotype and, conversely, how genes and their products metabolise these constituents into nutrients, antinutrients, and bioactive compounds. Results from molecular and genetic epidemiological studies indicate that dietary unbalance can alter gene–nutrient interactions in ways that increase the risk of developing chronic disease. The interplay of human genetic variation and environmental factors will make identifying causative genes and nutrients a formidable, but not intractable, challenge. We provide specific recommendations for how to best meet this challenge and discuss the need for new methodologies and the use of comprehensive analyses of nutrient–genotype interactions involving large and diverse populations. The objective of the present paper is to stimulate discourse and collaboration among nutrigenomic researchers and stakeholders, a process that will lead to an increase in global health and wellness by reducing health disparities in developed and developing countries