Results 21 to 30 of about 61,847 (187)

Reverberation Measurements of the Inner Radius of the Dust Torus in Nearby Seyfert 1 Galaxies

, 2005
The most intense monitoring observations yet made in the optical (UBV) and near-infrared (JHK) wave bands were carried out for nearby Seyfert1 galaxies of NGC 5548, NGC 4051, NGC 3227, and NGC 7469.
Antonucci R., Bruce A. Peterson, Clavel J., Collin-Souffrin S., Glass I. S., Hiroyuki Tomita, Keigo Enya, Maoz D., Masahiro Suganuma, Oknyanskij V. L., Shintaro Koshida, Takeo Minezaki, Tsutomu Aoki, Winkler H., Winkler H., Yukiyasu Kobayashi, Yuzuru Yoshii   +16 more
core   +2 more sources

The fourth dimension in landscape analysis: changing of heritage and ecological values in the Évora cultural landscapes. [PDF]

, 2011
Time is one of the most important driving forces in Landscape Ecology. Time along with geosystem, biosystem and socialsystem determines landscape heterogeneity which reveals itself in different patterns and functions.
Batista, Teresa, Mascarenhas, José Manuel de, Mendes, Paula   +2 more
core  

Simultaneous EUV and X-ray variability of NGC 4051 [PDF]

, 1999
We present a flux variability study of simultaneous RXTE and EUVE observations of the highly variable Seyfert galaxy NGC4051. We find a strong correlation between variability in the EUV and medium energy X-ray bands,indicating that both are sampling the ...
A. Fruscione, Abbott, Alexander, Chiang, Clavel, Done, Edelson, Edelson, Edelson, Elvis, Fiore, Guainazzi, Guainazzi, Haardt, I. Cagnoni, I. E. Papadakis, I. M. McHardy, Lawrence, Leighly, Longair, Marshall, McHardy, McHardy, Nandra, Nowak, P. Uttley, Page, Papadakis, Posdnyakov, Ramos, Singh, Sirk, Skibo, Uttley, Wandel, Welsh, Zdziarski   +36 more
core   +3 more sources

Estudio por HPLC de la acción de dos elicitores bióticos sobre la producción in vitro de metabolitos secundarios en células de clavel (Dianthus canophyilus L)

Revista Colombiana de Química, 2010
Como parte de la investigación que busca contribuir al estudio de los mecanismos de defensa que operan en la interacción clavel (Dianthus caryophyllus L.) - Fusarium oxysporum f. sp.
Blanca Ligia Higuera M.
doaj  

Composición química y evaluación de degradabilidad de residuos tóxicos de un núcleo ensilado a base de desechos de clavel

Ciencia y Agricultura, 2013
Se determinó la composición química y se cuantificaron los niveles de residuos tóxicos en núcleos ensilados de desechos de clavel (Dianthus caryophillus); los desechos de clavel fueron tomados del cuarto de poscosecha, y se enviaron muestras de clavel ...
Néstor Dairo Roberto-López
doaj  

X-ray vs. Optical Variations in the Seyfert 1 Nucleus NGC 3516: A Puzzling Disconnectedness

, 2002
We present optical broadband (B and R) observations of the Seyfert 1 nucleus NGC 3516, obtained at Wise Observatory from March 1997 to March 2002, contemporaneously with X-ray 2-10 keV measurements with RXTE.
Alex Markowitz, Dan Maoz, Done C., Guilbert P. W., Kirpal Nandra, Rick Edelson, Timmer J.   +6 more
core   +1 more source

Determinación de razas fisiológicas de Fusariumoxysporumf.sp. Dianthien suelos cultivados y en variedades de clavel en la finca "flores las palmas".

Agronomía Colombiana, 1995
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Benavides Joaquín L., Garcés De Granada Ernira, Arbelaez German, Dukuara Frank   +3 more
doaj  

The Growing Threat of Agroterrorism and Strategies for Agricultural Defense [PDF]

, 2020
Due to the dynamic nature of human conflict, non-traditional terror tactics have evolved to undermine the socioeconomic stability of targeted societies.
Forrest, Alyssa
core   +1 more source

Power density spectrum of NGC 5548 and the nature of its variability [PDF]

, 1998
We derive power density spectra in the optical and X-ray band in the timescale range from several years down to $\sim $ a day. We suggest that the optical power density spectrum consists of two separate components: long timescale variations and short ...
Czerny, B., Loska, Z., Schwarzenberg-Czerny, A.   +2 more
core   +3 more sources

Por uma Ecologia da Somática?

Revista Brasileira de Estudos da Presença, 2014
Este texto trata do parentesco conceitual e teórico entre Somática e Ecologia Científica. Após definir a noção científica de Ecologia, procuram-se definir três conceitos-chave da Ecologia: o de potencial, que permite descrever, de forma inovadora, o ...
Isabelle, Joanne
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