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Mecanismos de toxicidade do inseticida imidacloprido no fígado de rato
(Universidade Estadual Paulista (Unesp), 2018-02-16)
O imidacloprido (IMD) é um inseticida neonicotinóide largamente utilizado em diversas culturas agrícolas e em animais para o controle de pragas. O IMD é rapidamente absorvido pelo trato gastrointestinal e por contato, sendo ...
Some ionospheric storm effects at an antarctic station
(Elsevier, 2016-03)
In this paper, the ionospheric response of a high latitude station to some intense geomagnetic storms occurred in 2000 and 2001 is analyzed. For that, data of the critical frequency of the F2-layer foF2 and the virtual ...
Unusual nighttime impulsive foF2 enhancements at low latitudes: Phenomenology and possible explanations
(Elsevier, 2013-05)
This paper is focused on unusual nighttime impulsive electron density enhancements that are rarely observed at low latitudes on a wide region of South America, under quiet and medium/high geomagnetic conditions. The ...
Unusual nighttime impulsive foF2 enhancement below the southern anomaly crest under geomagnetically quiet conditions
(American Geophysical Union, 2011-12)
An unusual nighttime impulsive electron density enhancement was observed on 6 March 2010 over a wide region of South America, below the southern crest of the equatorial anomaly, under low solar activity and quiet geomagnetic ...
Catálogo de Grupos de Galaxias del SDSS DR12
Se presentan dos catálogos de grupos identificados en el SDSS DR12 y sus respectivos catálogos de galaxias. Para la construcción de estos catálogos se definió a los grupos como sistemas de las galaxias ligados gravitacionalmente ...
On the inclusion of data from solar cycle 19 to estimate F2 layer characteristic long term trend
(Editrice Compositori Bologna, 2015-04)
The effect of including solar cycle 19 (1954-1964) in ionospheric trend estimation is assessed using experimental foF2 values. The dominant influenceon the F2 layer is solar EUV radiation. In fact, around 90% of inter-annual ...
Short-term relationship between solar irradiances and equatorial peak electron densities
(American Geophysical Union, 2006-06)
The short-term relationship of the equatorial peak electron density and the solar short-wavelength irradiance is examined using foF2 observations from Jicamarca, Peru and recent solar irradiance measurements from satellites. ...