Encontrados 6 documentos, a visualizar página 1 de 1
Influence of seismic activity in the atmospheric electrical field in Lisbon (Po...
Silva, Hugo; Serrano, Cláudia; Reis, Heitor; Bezzeghoud, Mourad; Rosa, Rui; Borges, José; Caldeira, Bento; Tlemçani, M.; Biagi, F.The atmospheric electric field (AEF) can be influenced by different factors like cosmic radiation, radioactivity and aerosols [1]. Two innovative works have shown the possibility of enhanced air ionization, with consequent AEF perturbations, in the preparatory stage of earthquakes (EQ): Freund et al. [2] base their arguments on charge separation generated in the stressed volume followed by positive charges flow...
Supressão do Campo Eléctrico Atmosférico aquando do sismo de Sousel, M = 4.1
Silva, Hugo; Serrano, Cláudia; Reis, Heitor; Bezzeghoud, Mourad; Rosa, Rui; Borges, José; Caldeira, Bento; Tlemçani, M.In recent years different phenomena associated with seismic events have been referred in the literature. These include: unusual ultra-low-frequency electromagnetic emissions; anomalies in radio transmissions; variation of the ionosphere total electron content; and anomalous levels of different geochemical elements (in particular radon) in the earthquake preparation zone. Recent works shown the possibility of en...
Información, conocimiento y percepción sobre el riesgo de contraer el dengue en...
Schweigmann,Nicolas; Rizzotti,Andrea; Castiglia,Gabriela; Gribaudo,Fabio; Marcos,Edgardo; Burroni,Nora; Freire,Gabriela; D'Onofrio,VanesaCon objetivos de prevención de dengue, promoción de la salud e investigación-acción se desarrollaron dos experiencias en zonas piloto de Buenos Aires y Vicente López. En cada zona se identificaron referentes comunitarios, gubernamentales y no gubernamentales. Se realizó un diagnóstico entomológico (mediante ovitrampas), ambiental (con observaciones en terreno, encuestas y talleres), y social (utilizando cuestio...
Coal and fuel burning effects on the atmosphere as mediated by the atmospheric ...
Reis, A. Heitor; Serrano, ClaudiaAbstract: Emissions into the atmosphere of Greenhouse Gases (GHGs) and particulate matter resulting from fossil fuel burning are considered to be the main anthropogenic forcing on the global climate. We show here that the external cyclic influences of cosmic origin that modulate the earth’s climate may either reinforce or mitigate the ‘local’ terrestrial forcings. Among the external influences is cosmic radiati...
Hechos, Mitos y Creencias sobre la Electricidad Atmosférica desde una Perspecti...
Serrano, Claudia; Neto, António; Reis, A. HeitorEs indiscutible hoy el valor social de la educación en ciencias. Los fenómenos naturales observados desde temprano por los alumnos precisan explicaciones de naturaleza científica. Entre éstes está la electricidad atmosférica que, no obstante un fenómeno natural relativamente bien explicado en nuestros días, frecuentemente aparece asociado a ciertos mitos, temores y fantasmas, muchas veces sin ningún fundamento....
Influences of cosmic radiation, artificial radioactivity and aerosol concentrat...
Serrano, Claudia; Reis, A. Heitor; Rosa, Rui; Lucio, P.S.The atmospheric electric field is influenced by cosmic radiation, radioactivity and aerosols. In this work we investigate the existence of: (i) correlations between relative anomalies of annual values of atmospheric electric field and cosmic radiation intensity, artificial radioactivity and aerosol concentration; (ii) seasonal correlations between relative anomalies of the atmospheric electric field and cosmic ...
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