Results 31 to 40 of about 61,797 (137)

Accretion disk wind as explanation for the broad-line region structure in NGC 5548

, 2013
Supermassive black holes in the centers of active galactic nuclei (AGN) are surrounded by broad-line regions (BLRs). The broad emission lines seen in the AGN spectra are emitted in this spatially unresolved region.
Kollatschny, W., Zetzl, M.
core   +1 more source

Steps Toward Determination of the Size and Structure of the Broad-Line Region in Active Galactic Nuclei. XVI. A Thirteen-Year Study of Spectral Variability in NGC 5548 [PDF]

, 2002
We present the final installment of an intensive 13-year study of variations of the optical continuum and broad H-beta emission line in the Seyfert 1 galaxy NGC 5548.
Berlind, P., Bertram, R., Bischoff, K., Bochkarev, N. G., Borisov, N., Burenkov, A. N., Calkins, M., Carrasco, L., Chavushyan, V. H., Chornock, R., Dietrich, M., Doroshenko, V. T., Ezhkova, O. V., Filippenko, A. V., Gilbert, A. M., Huchra, J. P., Kollatschny, W., Leonard, D. C., Li, W., Lyuty, V. M., Malkov, Yu. F., Matheson, T., Merkulova, N. I., Mikhailov, V. P., Modjaz, M., Onken, C. A., Peterson, Bradley M., Pogge, R. W., Pronik, V. I., Qian, B., Romano, P., Sergeev, S. G., Sergeeva, E. A., Shapovalova, A. I., Spiridonova, O. I., Tao, J., Tokarz, S., Valdes, J. R., Vlasiuk, V. V., Wagner, R. M., Wilkes, B. J.   +40 more
core   +2 more sources

L’edició popular a Espanya. El cas de l’Editorial Cervantes Notes

Educació i Història: Revista d'Història de l'Educació, 2013
L’editor, traductor i escriptor Vicente Clavel Andrés, durant anys periodista en El Pueblo de València amb Félix Azzati, i conspicu activista republicà abans de dedicarse al negoci editorial, és, probablement, conegut en la història de l’edició a ...
Luis Miguel Lázaro
doaj  

Demographic Differentials in Facebook Usage Around the World

, 2019
We use data from the Facebook Advertisement Platform to study patterns of demographic disparities in usage of Facebook across countries. We address three main questions: (1) How does Facebook usage differ by age and by gender around the world?
Gil-Clavel, Sofia, Zagheni, Emilio
core   +1 more source

Reflection nebulae in the Galactic Center: the case for soft X-ray imaging polarimetry [PDF]

, 2015
The origin of irradiation and fluorescence of the 6.4 keV bright giant molecular clouds surrounding Sgr A*, the central supermassive black hole of our Galaxy, remains enigmatic.
Karas, V., Kunneriath, D., Marin, F., Muleri, F., Soffitta, P.   +4 more
core   +2 more sources

Resúmenes de las tesis de grado en floricultura realizadas en la Facultad de Agronomía, Universidad Nacional de Colombia. Bogotá D.C., entre 1981 y 1993

Agronomía Colombiana, 1992
<p>Reconocimiento e identificación de <em>Phialophora cinerescens </em>y <em>Fusarium oxysporum </em>f. sp. <em>dianthi </em>en el cultivo del clavel en la sabana de Bogotá.
Casas Eduardo, Arbeláez Germán, Saavedra Alejandro, Chaves José Fransico, Molina Juan Carlos, Rodríguez Arias Pedro   +5 more
doaj  

New hard X-ray sources discovered in the ongoing INTEGRAL Galactic Plane survey after 14 years of observations

, 2017
The International Gamma-Ray Astrophysics Laboratory (INTEGRAL) continues to successfully work in orbit after its launch in 2002. The mission provides the deepest ever survey of hard X-ray sources throughout the Galaxy at energies above 20 keV.
Krivonos, Roman, Lutovinov, Alexander, Mereminskiy, Ilya, Sazonov, Sergey, Sunyaev, Rashid, Tsygankov, Sergey   +5 more
core   +1 more source

Las enfermedades vasculares del clavel en Colombia y en el mundo

Agronomía Colombiana, 1993
El clavel es atacado por un gran número de enfermedades<br />causadas por hongos, bacterias, nemátodos, virus y micoplasmas, las cuales se presentan afectando diferentes partes de la planta.
Arbeláez Torres Germán
doaj  

Una lectura de los sueños diurnos y del inconsciente onírico del personaje de “Las violetas son las flores del deseo” de Ana Clavel

Ogigia, 2016
En este artículo analizamos el sueño y las fantasías diurnas del narrador-protagonista deLas Violetas son las flores del deseo (2007), novela perteneciente a la escritora mexicana contemporánea Ana Clavel.
Natalia Plaza Morales
doaj   +1 more source

The Clavel Foundation, Neurosurgery To Change Lives: 7 Years’ Experience.

Brain and Spine, 2023
Xavier Santander Espinoza, Pablo Barbero, Mario Sierra, Ignasi Catalá, Pablo Clavel   +4 more
doaj   +1 more source