78 research outputs found
Migration and Settlement: 14. United States
Like many countries, the US is experiencing a change in patterns of migration and natural increase. Adopting the traditional US Census Bureau's four-region aggregation, the authors examine the multiregional demographic implications of this emerging spatial reallocation process. Special emphasis is placed on intraregional city-suburb redistribution, and a model is presented, which links such intraregional shifts with the national interregional redistribution within the US
Caracterizacion de nueve genotipos de maiz (Zea mays L.) en relacion a area foliar y coeficiente de extincion de luz
Checklist dos percevejos-do-mato (Hemiptera: Heteroptera: Pentatomoidea) do Estado de SĂŁo Paulo, Brasil
Recovery of Mollicutes from the reproductive tract of dairy cattle in the state of Pernambuco, Brazil
Linear Collider Physics Resource Book for Snowmass 2001, 3: Studies of Exotic and Standard Model Physics
This Resource Book reviews the physics opportunities of a next-generation e+e- linear collider and discusses options for the experimental program. Part 3 reviews the possible experiments on that can be done at a linear collider on strongly coupled electroweak symmetry breaking, exotic particles, and extra dimensions, and on the top quark, QCD, and two-photon physics. It also discusses the improved precision electroweak measurements that this collider will make available.This Resource Book reviews the physics opportunities of a next-generation e+e- linear collider and discusses options for the experimental program. Part 3 reviews the possible experiments on that can be done at a linear collider on strongly coupled electroweak symmetry breaking, exotic particles, and extra dimensions, and on the top quark, QCD, and two-photon physics. It also discusses the improved precision electroweak measurements that this collider will make available
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Energetic particle influence on the Earth's atmosphere
This manuscript gives an up-to-date and comprehensive overview of the effects of energetic particle precipitation (EPP) onto the whole atmosphere, from the lower thermosphere/mesosphere through the stratosphere and troposphere, to the surface. The paper summarizes the different sources and energies of particles, principally
galactic cosmic rays (GCRs), solar energetic particles (SEPs) and energetic electron precipitation (EEP). All the proposed mechanisms by which EPP can affect the atmosphere
are discussed, including chemical changes in the upper atmosphere and lower thermosphere, chemistry-dynamics feedbacks, the global electric circuit and cloud formation. The role of energetic particles in Earthâs atmosphere is a multi-disciplinary problem that requires expertise from a range of scientific backgrounds. To assist with this synergy, summary tables are provided, which are intended to evaluate the level of current knowledge of the effects of energetic particles on processes in the entire atmosphere
OcorrĂȘncia de Mollicutes e Ureaplasma spp. em surto de doença reprodutiva em rebanho bovino no Estado da ParaĂba
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