Search results for " region"
showing 10 items of 3758 documents
C5a complement and cytokine signaling mediate the pronociceptive effects of complex regional pain syndrome patient IgM in fracture mice.
2020
It has been proposed that complex regional pain syndrome (CRPS) is a posttraumatic autoimmune disease. Previously, we observed that B cells contribute to CRPS-like changes in a mouse tibia fracture model, and that early (12 months duration) CRPS patient IgM antibodies have pronociceptive effects in the skin and spinal cord of muMT fracture mice lacking B cells. The current study evaluated the pronociceptive effects of intraplantar or intrathecal injections of early CRPS IgM (5 µg) in muMT fracture mice. Skin and lumbar spinal cord were collected for immunohistochemistry and polymerase chain reaction analyses. Wild-type mice exhibited postfracture increases in complement component C5a and it…
La legislazione regionale siciliana in materi di aiuti pubblici alle imprese dinanzi al controllo della Commissione europea
2000
Il saggio esamina la questione della compatibilità della legislazione regionale siciliana con la politica europea della concorrenza, mettendo in lice le criticità emerse dalle posizioni della Commissione europea
América en la escena operística
2015
El argumento del primer encuentro cultural entre europeos y americanos fue terreno fértil para ejercitar dos representaciones diferentes del extranjero. Para los compositores europeos América fue parangón y pretexto tanto para sublimar al otro desde el iluminismo que escamoteaba su diversidad, como desde la visión exotizante que hacía del extraño ocasión de pintoresquismos. Ambas perspectivas resultaron ser muy afines a las que en el siglo XIX preocuparon a compositores sudamericanos. Cuando estos trataron de elaborar por fin un repertorio lírico propio, no hicieron otra cosa que recorrer otra vez más uno de aquellos dos senderos que la ópera de los italianos ya había trazado, es decir, o b…
Interactions, spillovers de connaissance et croissance des économies modernes. Faut-il préférer la globalisation ou la proximité géographique ?
2009
Globalisation and metropolisation in modern economies induce some locational strategies of knowledge based activities towards cities and deeply increase trade and move of ideas across cities. In that context, we study the way knowledge spillovers have influenced the economic growth of 82 European Metropolises over the 1990-2005 period. We model knowledge spillovers across cities according to three specific interaction patterns depending either on geography or on global advanced services or thought a combination of these patterns. We show that the mixed pattern matters the best for economic growth of cities in Europe.
No phylogeographic structure in the circumpolar snowy owl (Bubo scandiacus)
2008
The snowy owl (Bubo scandiacus) is a nomadic species with a circumpolar distribution. It has recently declined in the western Palearctic and may thus be worthy of special consideration for conservation. We investigated genetic structure in three well separated geographic regions within the snowy owls’ breeding range. We sequenced two mitochondrial genes; the control region and cytochrome b, and two Z-chromosome introns; VLDLR-9 and BRM-15. We found no phylogeographic structure among the sampled regions, indicating high levels of gene flow in the recent past and possibly still today. Intra-population diversity did not vary between regions for the control region, but for Cyt b, North American…
Elucidating geological and biological processes underlying the diversification of Sulawesi tarsiers.
2009
Because of their exceptionally long independent evolution, a range diminution of their Eocene relatives, and a remarkable subsequent diversification in Southeast Asia, tarsiers are of particular importance to evolutionary primatologists. Little is known, however, on the processes shaping the radiation of these small enigmatic primates—especially on the Indonesian island of Sulawesi, their center of endemism. Geological reconstructions and progress in applying DNA sequence information to divergence dating now provide us with the tools and background to comprehend tarsier dispersal. Here, we describe effects of plate-tectonic movements, Pleistocene sea level changes, and hybridization on the…
Phylogeography of a Palaearctic sedentary passerine, the willow tit (Parus montanus)
2001
We analysed variation of the mitochondrial control region from willow tits through its Palaearctic distribution range. Although we found high amount of genetic variation (π=1.114%), there was almost no differentiation between subspecies or geographical localities. This may be because of a combination of several ecological and genetic factors, including a relatively homogenic habitat through the distribution range, lack of geographical barriers, high gene flow and a large long-term effective population size. On the contrary, in the songar tit, which is sometimes considered to be conspecific with the willow tit, the mitochondrial lineages seem to correlate with the geographical locality and a…
Environmental features of deep-sea habitats linked to the genetic population structure of a crustacean species in the Mediterranean Sea
2009
The deep-sea habitat, from 200 to 2000 m depth, has long been thought as an ecosystem where biotic and abiotic factors vary very little and consequently species are not disturbed by processes and phenomena which could promote fast evolutionary mechanisms. Unfortunately, biological information relating to deep water is limited, especially regarding the population genetics of species inhabiting the Mediterranean Sea, and general patterns cannot be inferred. In this study we report data on the population genetic structure of Aristeus antennatus, a deep-sea decapod crustacean species which has been widely studied due to its important economic value. We surveyed and examined the variation in a 3…
Towards a comprehensive understanding of new regional industrial path development
2019
Path creation is a key concept in economic geography. So far, particularly scholars within evolutionary economic geography have pioneered research on this topic. This paper critically discusses the...
Web social et multimédia : propriétés d'une relation symbiotique
2011
International audience; Les notions inhérentes aux principes du web social placent les contenus multimédias au cÉur de nouvelles pratiques communicationnelles. Les relations entre les nouveaux espaces de médiation ouverts par le web 2.0 et l'univers du multimédia ne s'inscrivent pas simplement dans un rapport linéaire et séquentiel de transfert d'innovations mais procèdent davantage d'une relation symbiotique aux bénéfices multiples. Dans une première partie nous mettrons en exergue les spécificités de ces relations puis nous questionnerons les nouveaux usages et les nouvelles pratiques qu'elles induisent. Dans une seconde partie, nous présenterons un ensemble de résultats obtenus suite à u…