Institution
University of Coimbra
Education•Coimbra, Portugal•
About: University of Coimbra is a education organization based out in Coimbra, Portugal. It is known for research contribution in the topics: Population & Mitochondrion. The organization has 14318 authors who have published 43067 publications receiving 994733 citations. The organization is also known as: UC & Universidade dos Estudos Gerais.
Papers published on a yearly basis
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Spanish National Research Council1, University of Coimbra2, Swiss Federal Institute for Forest, Snow and Landscape Research3, ETH Zurich4, Aix-Marseille University5, Wageningen University and Research Centre6, University of Ulm7, Royal Museum for Central Africa8, Vrije Universiteit Brussel9, University of Helsinki10, National University of Río Negro11, University of Ljubljana12, Center for International Forestry Research13, Dresden University of Technology14, United States Forest Service15, Transilvania University of Brașov16, Humboldt State University17, Siberian Federal University18, Sukachev Institute of Forest19, National University of Comahue20, National Scientific and Technical Research Council21, Weizmann Institute of Science22, Pablo de Olavide University23, University of Innsbruck24, Agricultural University of Athens25, University of Valladolid26, University of Novi Sad27, Autonomous University of Barcelona28
TL;DR: It is found that trees that died during drought were less resilient to previous dry events compared to surviving conspecifics, but the resilience strategies differ between angiosperms and gymnosperms.
Abstract: Severe droughts have the potential to reduce forest productivity and trigger tree mortality. Most trees face several drought events during their life and therefore resilience to dry conditions may be crucial to long-term survival. We assessed how growth resilience to severe droughts, including its components resistance and recovery, is related to the ability to survive future droughts by using a tree-ring database of surviving and now-dead trees from 118 sites (22 species, >3,500 trees). We found that, across the variety of regions and species sampled, trees that died during water shortages were less resilient to previous non-lethal droughts, relative to coexisting surviving trees of the same species. In angiosperms, drought-related mortality risk is associated with lower resistance (low capacity to reduce impact of the initial drought), while it is related to reduced recovery (low capacity to attain pre-drought growth rates) in gymnosperms. The different resilience strategies in these two taxonomic groups open new avenues to improve our understanding and prediction of drought-induced mortality.
197 citations
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TL;DR: A 3D perception system based on voxel-grid model for static and moving obstacles detection using discriminative analysis and ego-motion information and a complete framework for ground surface estimation and static/moving obstacle detection in driving environments is proposed.
197 citations
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TL;DR: Results provide the first direct evidence that A2A and mGluR5 receptors are co‐located in more than half of the striatal glutamatergic terminals where they facilitate glutamate release in a synergistic manner and emphasizes the role of the modulation of glutamate release as a likely mechanism of action of these receptors both in striatal neuroprotection and in Parkinson's disease.
Abstract: The anti-Parkinsonian effect of glutamate metabotropic group 5 (mGluR5) and adenosine A(2A) receptor antagonists is believed to result from their ability to postsynaptically control the responsiveness of the indirect pathway that is hyperfunctioning in Parkinson's disease. mGluR5 and A(2A) antagonists are also neuroprotective in brain injury models involving glutamate excitotoxicity. Thus, we hypothesized that the anti-Parkinsonian and neuroprotective effects of A(2A) and mGluR5 receptors might be related to their control of striatal glutamate release that actually triggers the indirect pathway. The A(2A) agonist, CGS21680 (1-30 nM) facilitated glutamate release from striatal nerve terminals up to 57%, an effect prevented by the A(2A) antagonist, SCH58261 (50 nM). The mGluR5 agonist, CHPG (300-600 mum) also facilitated glutamate release up to 29%, an effect prevented by the mGluR5 antagonist, MPEP (10 microm). Both mGluR5 and A(2A) receptors were located in the active zone and 57 +/- 6% of striatal glutamatergic nerve terminals possessed both A(2A) and mGluR5 receptors, suggesting a presynaptic functional interaction. Indeed, submaximal concentrations of CGS21680 (1 nM) and CHPG (100 microm) synergistically facilitated glutamate release and the facilitation of glutamate release by 10 nM CGS21680 was prevented by 10 microm MPEP, whereas facilitation by 300 microm CHPG was prevented by 10 nM SCH58261. These results provide the first direct evidence that A(2A) and mGluR5 receptors are co-located in more than half of the striatal glutamatergic terminals where they facilitate glutamate release in a synergistic manner. This emphasizes the role of the modulation of glutamate release as a likely mechanism of action of these receptors both in striatal neuroprotection and in Parkinson's disease.
197 citations
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TL;DR: In this paper, it is shown that the underlying wave vector space may be regarded as the Riemann sphere and sufficient conditions that the pseudo-Hamiltonian that describes the electrodynamics of the continuous material is well behaved so that the Chern numbers are integers.
Abstract: Here, we formally develop theoretical methods to topologically classify a wide class of bianisotropic continuous media. It is shown that for continuous media, the underlying wave vector space may be regarded as the Riemann sphere. We derive sufficient conditions that ensure that the pseudo-Hamiltonian that describes the electrodynamics of the continuous material is well behaved so that the Chern numbers are integers. Our theory brings the powerful ideas of topological photonics to a wide range of electromagnetic waveguides and platforms with no intrinsic periodicity and sheds light over the emergence of edge states at the interfaces between topologically inequivalent continuous media.
197 citations
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TL;DR: In this study, among a collection of Ni-resistant bacterial strains isolated from the rhizosphere of Alyssum serpyllifolium and Phleum phleoides grown on serpentine soil, five plant growth-promoting bacteria were selected based on their ability to utilize 1-aminocyclopropane-1-carboxylate (ACC) as the sole N source and promote seedling growth.
197 citations
Authors
Showing all 14693 results
Name | H-index | Papers | Citations |
---|---|---|---|
P. Chang | 170 | 2154 | 151783 |
Yang Gao | 168 | 2047 | 146301 |
Bin Liu | 138 | 2181 | 87085 |
P. Sinervo | 138 | 1516 | 99215 |
Filipe Veloso | 128 | 887 | 75496 |
Panagiotis Kokkas | 128 | 1234 | 81051 |
Nuno Filipe Castro | 128 | 960 | 76945 |
Robert Gardner | 128 | 1015 | 77619 |
Francois Corriveau | 128 | 1022 | 75729 |
Peter Krieger | 128 | 1171 | 81368 |
João Carvalho | 126 | 1278 | 77017 |
Helmut Wolters | 126 | 851 | 75721 |
Nicola Venturi | 126 | 796 | 69518 |
Sai-Juan Chen | 121 | 1211 | 73991 |
Harinder Singh Bawa | 120 | 798 | 66120 |