Search results for "temporal"
showing 10 items of 1095 documents
Climate and agriculture: empirical evidence for countries and agroecological zones of the Sahel
2022
International audience; ow heterogenous is the impact of climate change across space and the type of agricultural production? In this paper, we investigate the relationship between climate change and variability, measured by temperature and rainfall, and agricultural production at the country and agroecological zone levels of the Sahel. We consider a crop production index and five cereals (maize, millet, sorghum, wheat and rice). Based on an original climate database and an agricultural production function estimated for the period 1961–2016, we show that average rainfall and temperature during the growing season indeed have highly heterogeneous effects on agricultural production, depending …
Effects of density, species interactions, and environmental stochasticity on the dynamics of British bird communities
2022
Our knowledge of the factors affecting species abundances is mainly based on time-series analyses of a few well-studied species at single or few localities, but we know little about whether results from such analyses can be extrapolated to the community level. We apply a joint species distribution model to long-term time-series data on British bird communities to examine the relative contribution of intra- and interspecific density dependence at different spatial scales, as well as the influence of environmental stochasticity, to spatiotemporal interspecific variation in abundance. Intraspecific density dependence has the major structuring effect on these bird communities. In addition, envi…
(Re)constuire la temporalité d’un événement médiatique sur Twitter : une étude contrastive
2016
International audience; En examinant la temporalité d’un « événement » sur Twitter, à travers les tweets d’acteurs politiques dans quatre pays, cette étude contribue à enrichir notre compréhension du processus de médiatisation de la communication politique via les réseaux socio-numériques. A partir des traces laissées sur le réseau par ses utilisateurs, la contribution cherche à identifier un « événement » médiaté qui se manifesterait dans des discours des acteurs politiques comparés à la twittosphère. This study proposes to enrich our understanding of the mediatization of political communication via digital social networks, by examining the temporality of an “event” on Twitter, through the…
Utilisation de la Dominance temporelle des sensations pour la caractérisation sensorielle des produits de la filière blé-farine-pain
2012
Eurogerm is specialized in flour correctors, bread improvers and technological ingredients for the wheat, flour and bread sector. The company gives great importance to sensory analysis as a diagnostic tool of finished products and has four expert panels; each panel is specialized in one category of products and is trained to standard sensory profiling. Today, in addition to the traditional method, Eurogerm wants to explore new methods in order to offer new services to its customers. This paper describes the development of Temporal Dominance of Sensations (TDS) created in the “Centre des Sciences du Goût et de l’Alimentation” (CSGA) (PINEAU et al., 2009). TDS provides information on the perc…
High frequency rTMS over the left parietal lobule increases non-word reading accuracy
2012
Increasing evidence in the literature supports the usefulness of Transcranial Magnetic Stimulation (TMS) in studying reading processes. Two brain regions are primarily involved in phonological decoding: the left superior temporal gyrus (STG), which is associated with the auditory representation of spoken words, and the left inferior parietal lobe (IPL), which operates in phonological computation. This study aimed to clarify the specific contribution of IPL and STG to reading aloud and to evaluate the possibility of modulating healthy participants' task performance using high frequency repetitive TMS (hf-rTMS). The main finding is that hf-rTMS over the left IPL improves non-word reading accu…
Hsp60 response in experimental and human temporal lobe epilepsy due to hyppocampal sclerosis
2015
Hsp60 is widely distributed in the brain, and its alteration has been involved in different neurological disorders. Epilepsy is considered one of the most common neurological disorders and typically involves the hippocampal formation. Compelling evidence describes a role of mitochondria, oxidative stress and both innate and adaptive immunity during epileptogenesis in temporal lobe epilepsy due to hyppocampal sclerosis (TLE-HS). Here, we investigate the Hsp60 involvement in experimental and human epilepsy. Firstly, expression and distribution of Hsp60 in epileptic hippocampi of a rat model of temporal lobe epilepsy (TLE), based on the phenomenon of maximal dentate gyrus activation (MDA), usi…
Reading changes in children and adolescents with dyslexia after transcranial direct current stimulation.
2016
Noninvasive brain stimulation offers the possibility to induce changes in cortical excitability and it is an interesting option as a remediation tool for the treatment of developmental disorders. This study aimed to investigate the effect of transcranial direct current stimulation (tDCS) on reading and reading-related skills of children and adolescents with dyslexia. Nineteen children and adolescents with dyslexia performed different reading and reading-related tasks (word, nonword, and text reading; lexical decision; phonemic blending; verbal working memory; rapid automatized naming) in a baseline condition without tDCS and after 20 min of exposure to three different tDCS conditions: left …
Reduction in site fidelity with smaller spatial scale may suggest scale-dependent information use
2014
Animals change the strategy that they use to select breeding sites at the spatial scales of habitat, patch, and microhabitat. In this regard, breeding site fidelity is expected to vary according to environmental predictability, which, in turn, is expected to differ between each spatial scale. However, whether or not animals change their degree of site fidelity at different spatial scales remains unclear. We captured and released males of the terrestrial frog Pseudophryne bibronii into alternative patches within a breeding habitat and determined the extent to which site fidelity influenced individual nest-site choice. We found that males tended to return to their original patch rather than r…
La variabilidad glucémica como marcador de riesgo cardiovascular y diabetes en niños y adolescentes obesos
2022
Entendemos por variabilidad glucémica (VG) la medición de las excursiones en sentido ascendente y descendente de la concentración de glucosa en un periodo de tiempo. Desde el desarrollo de la medición continua subcutánea de glucosa (MCG) se ha podido determinar la VG de forma sencilla y con mayor exactitud. Cierto grado de variabilidad glucémica es normal en sujetos sanos y está en estrecha relación con la capacidad funcional de la célula beta pancreática en situación postprandial, resultando máxima en situaciones de nula reserva insulínica como la diabetes mellitus (DM) tipo 1 de mal control. Estudios en niños DM tipo 1 han demostrado asociación entre la mayor VG y las complicaciones micro…
Political Action Beyond Resistance: Arendt and "Revolutionary Spirit" in Egypt
2016
The article examines what it calls the "politics-as-resistance" frame in contemporary political theory, originating in the works of Michel Foucault and Judith Butler. This way of organizing political experience is contrasted with Hannah Arendt's political thought, particularly her writings on revolutionary action. Arendt's often overlooked – and partly unpublished – passages on virtù and fortuna are further suggested as important additions to her thinking on action. I argue that Arendt's "world-centric" approach can illuminate certain aspects of political experience that remain dimmed in the more subject-oriented politics-as-resistance frame. Particular focus is paid to the austere notion o…