Institution
University of Alcalá
Education•Alcalá de Henares, Spain•
About: University of Alcalá is a education organization based out in Alcalá de Henares, Spain. It is known for research contribution in the topics: Population & Context (language use). The organization has 10795 authors who have published 20718 publications receiving 410089 citations. The organization is also known as: University of Alcala & University of Alcala de Henares.
Topics: Population, Context (language use), Medicine, Receptor, Computer science
Papers published on a yearly basis
Papers
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TL;DR: In this article, the authors present a signalling exercise with a view to trace emerging dynamics in the development of the service economy in Europe and identify the most promising service innovation dynamics, and foresight scenarios demonstrate possible future trends of the new service economy.
90 citations
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TL;DR: In this article, the properties of massive, galactic-scale outflows of molecular gas and their impact on galaxy evolution were investigated, and it was shown that the presence of an AGN can boost the outflow rate by a large factor, which increases with the L_AGN/L_bol ratio.
Abstract: We study the properties of massive, galactic-scale outflows of molecular gas and investigate their impact on galaxy evolution. We present new IRAM PdBI CO(1-0) observations of local ULIRGs and QSO hosts: clear signature of massive and energetic molecular outflows, extending on kpc scales, is found in the CO(1-0) kinematics of four out of seven sources, with measured outflow rates of several 100 Msun/yr. We combine these new observations with data from the literature, and explore the nature and origin of massive molecular outflows within an extended sample of 19 local galaxies. We find that starburst-dominated galaxies have an outflow rate comparable to their SFR, or even higher by a factor of ~ 2-4, implying that starbursts can indeed be effective in removing cold gas from galaxies. Nevertheless, our results suggest that the presence of an AGN can boost the outflow rate by a large factor, which is found to increase with the L_AGN/L_bol ratio. The gas depletion time-scales due to molecular outflows are anti-correlated with the presence and luminosity of an AGN in these galaxies, and range from a few hundred million years in starburst galaxies, down to just a few million years in galaxies hosting powerful AGNs. In quasar hosts the depletion time-scales due to the outflow are much shorter than the depletion time-scales due to star formation. We estimate the outflow kinetic power and find that, for galaxies hosting powerful AGNs, it corresponds to about 5% of the AGN luminosity, as expected by models of AGN feedback. Moreover, we find that momentum rates of about 20 L_AGN/c are common among the AGN-dominated sources in our sample. For "pure" starburst galaxies our data tentatively support models in which outflows are mostly momentum-driven by the radiation pressure from young stars onto dusty clouds.
90 citations
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TL;DR: Evidence is found for an upward shift of Q. ilex recruits towards areas with colder conditions in pine forests, which could be explained by a possible facilitative effect of the pine canopy on seedling establishment.
Abstract: Questions: What is the current distribution of pine and oak species along environmental gradients in southern Spain? Do pine and oak regeneration niches differ from the environmental niches of adults? Is oak species regeneration favoured under the canopy of pine forests? Location: Forest areas of Andalusia (87600km 2 , southern Spain). Methods: We compiled extensive forest inventory data to explore differences in abundance (basal area, m 2 ha 1 ) patterns of adults (dbh 47.4cm) and regeneration (dbh 7.4cm) of five pine and five oak species. Canonical correspondence analysis (CCA) and generalized linear models were applied to explore species‐environment relationships along climatic, edaphic, topographic and fire-frequency gradients. Results: Both pines and oaks segregated along complex environmental gradients, with pines generally dominating in more severe (colder and drier) environments, while oaks dominated in milder, wetter winter areas. In 40-55% of mature pine stands there was a lack of regeneration in the understorey, while in two oak species (Q. suber and Q. canariensis) 70% of stands did not show regeneration. Pine recruits were found at a higher frequency and abundance under the canopy of their congeners, whereas some oaks (Q. ilex) had greater regeneration under mixed pine‐oak canopies. Conclusions: Climatic limitations and soil properties partly explained the regional distribution of pines and oaks. We found evidence for an upward shift of Q. ilex recruits towards areas with colder conditions in pine forests, which could be explained by a possible facilitative effect of the pine canopy on seedling establishment.
90 citations
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TL;DR: As a result of the Prestige oil-spill and the clean-up activities, beach populations were reduced, with Eurydice and S. squamata as the most affected taxa.
90 citations
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TL;DR: A series of lithium, sodium, and potassium complexes with phenoxo-imine ligands M[(O-2-(RN═CH)C6H4] [R = C6H5; 2-tBuC 6H5, 2,6-iPr2C6 H3] and [O- 2-(RN)-CH)-4,6tBu2C 6 H4] 1−3(a-f) have been synthesized.
90 citations
Authors
Showing all 10907 results
Name | H-index | Papers | Citations |
---|---|---|---|
José Luis Zamorano | 105 | 695 | 133396 |
Jesús F. San Miguel | 97 | 527 | 44918 |
Sebastián F. Sánchez | 96 | 629 | 32496 |
Javier P. Gisbert | 95 | 990 | 33726 |
Luis M. Ruilope | 94 | 841 | 97778 |
Luis M. Garcia-Segura | 88 | 484 | 27077 |
Alberto Orfao | 85 | 597 | 37670 |
Amadeo R. Fernández-Alba | 83 | 318 | 21458 |
Rafael Luque | 80 | 693 | 28395 |
Francisco Rodríguez | 79 | 748 | 24992 |
Andrea Negri | 79 | 242 | 35311 |
Rafael Cantón | 78 | 575 | 29702 |
David J. Grignon | 78 | 301 | 23119 |
Christophe Baudouin | 74 | 553 | 22068 |
Josep M. Argilés | 73 | 310 | 19675 |