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Mostrando ítems 4451-4460 de 19458
Ionospheric Scintillation Fading Coefficients for the GPS L1, L2, and L5 Frequencies
(Amer Geophysical Union, 2018-09-01)
The terrestrial ionosphere over low-latitude regions presents the unique phenomena of the equatorial ionization anomaly (characterized by global maximum in plasma concentration) and plasma-depleted regions known as equatorial ...
Follow the rain? Environmental drivers of Tyrannus migration across the New World
(Oxford Univ Press Inc, 2018-10-01)
Predictable seasonal changes in resources are thought to drive the timing of annual animal migrations; however, we currently understand little about which environmental cues or resources are tracked by different migratory ...
Análise dos conceitos do modelo de excelência em gestão na geração de benefícios para a sociedade e meio ambiente
(Universidade Estadual Paulista (Unesp), 2016-06-21)
Considering that 1% of the population controls 99% of the wealth in the world, 20,000 children die each day, 1 in 6 species are threatened with extinction and 86% of the global energy mix is dependent on non-renewable ...
O circuito espacial produtivo dos fertilizantes no território brasileiro
(Universidade Estadual Paulista (Unesp), 2015)
This paper has two main objective the study of the productive space circuit of fertilizers in Brazil. For this, we study the company's operations Vale Fertilizers SA More specifically, the production and consumption of ...
Biocrust cyanobacterial composition, diversity, and environmental drivers in two contrasting climatic regions in Brazil
(2021-03-15)
Biological soil crusts or biocrusts have critical ecological roles in dryland ecosystems including soil stabilization, erosion control and nutrient cycling. Global environmental changes are expected to impact terrestrial ...
Higher Abundance of Sediment Methanogens and Methanotrophs Do Not Predict the Atmospheric Methane and Carbon Dioxide Flows in Eutrophic Tropical Freshwater Reservoirs
(Frontiers Media Sa, 2021-03-17)
Freshwater reservoirs emit greenhouse gases (GHGs) such as methane (CH4) and carbon dioxide (CO2), contributing to global warming, mainly when impacted by untreated sewage and other anthropogenic sources. These gases can ...
Utilização de painéis solares fotovoltaicos no segmento residencial
(Universidade Estadual Paulista (Unesp), 2015-12-10)
In order to diversify the global and national energy matrix and reduce harmful impacts on the environment caused by the emission of polluting gases into the atmosphere, the use of clean and renewable energy sources is ...
Revisão teórica: cultivo de microalgas para a produção de carotenoides
(Universidade Estadual Paulista (Unesp), 2021-12-15)
The microalgae industry has received significant attention with the search for more natural products and as the concern for the environment has become increasingly frequent. These microorganisms are capable of producing ...
The Widened Pipe Model of plant hydraulic evolution
(Natl Acad Sciences, 2021-06-01)
Shaping global water and carbon cycles, plants lift water from roots to leaves through xylem conduits. The importance of xylem water conduction makes it crucial to understand how natural selection deploys conduit diameters ...
O processo sociopolítico da comunicação e as organizações intergovernamentais
(Universidade Estadual Paulista (Unesp), 2018-11-27)
The following research aims to explore the presence of Public Relations in Intergovernmental Organizations, as part of its social process. In a context of globalization and information technology development, communication ...