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47.621  Articles
1 of 4.763 pages  |  10  records  |  more records»
Admission. Atrial fibrillation is the most commonly encountered arrhythmia today. The risk of her occurrence increases with age. Atrial fibrillation is associated with serious complications, mainly thromboembolic disease, which is therefore a significant ... see more

The global energy demand enhances the environmental and operational benefits of natural gas as an energy alternative, due to its composition, mainly methane (CH4), it has low polluting emissions and benefits in energy and combustion systems. In the presen... see more

1. SPZ (sanitary-protection zone) – 50 m from poultry yards;2. OD – 1 (observation district) 500 m beyond SPZ;3. OD – 2 (observation district) 1700 m beyond SPZ;4. Control 10 km from poultry enterprises.Poultry enterprises are situated... see more

This study was carried out to evaluate the effect of modified atmospheric conditions (MAC) created in large capacity hermetically sealed soybean storage in comparison to ambient warehouse soybean storage. Change of physiochemical properties of soybean suc... see more

Frictional convergence in an atmospheric boundary layer topped by a stable free troposphere is considered. In agreement with extensive previous work, we find that atmospheric stability reduces the vertical scale of the free tropospheric secondary circulat... see more

The descriptive study related to the evolution of O3, NO, NO2, CO, SO2, CH4, NMHC and PM10 concentrations in downtown Sfax showed, during the period October 1996-June 1997, that the city is significantly influenced by many source... see more

To explore the polychlorinated biphenyl (PCB) pollution characteristics of atmospheric particles, influential factors, and dry deposition fluxes, 28 PCB congeners were examined over a 2-year period in the environment of an isolated island in Fujian Provin... see more

The study aimed to seek for the effect of meteorological parameters and conditions on wave transport for both radio wave band that used by mobile phone communication and microwave band that used in 'TV' satellites by showing which atmospheric variable and... see more

We analyzed the effects of regional and local natural conditions on the process of construction and functioning of road landscape-engineering systems (RLES) – modern actively developing operating roads with the required infrastructure. It has been reporte... see more

1 of 4.763 pages  |  10  records  |  more records»