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Registros recuperados: 9
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Abidjan des années trente : landscapes IRD
Vidal, C..
Tipo: Text Palavras-chave: SOCIOLOGIE URBAINE; RAPPORTS SOCIAUX; DELINQUANCE; RELATIONS VILLE CAMPAGNE; CONTREBANDE; PERIODE COLONIALE; VIN DE PALME.
Ano: 1989 URL: http://www.documentation.ird.fr/hor/fdi:30688
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CFD based determination of temperature and humidity at leaf surface Inra
Roy, J.C.; Vidal, C.; Fargues, J.; Boulard, T..
A numerical model based on the energy balance has been developed for computing with the Fluent CFD code temperature and humidity at leaf surface for low light levels. Crop transpiration and aerial flows were coupled and a single parameter model for the stomatal response of leaves to radiation flux has been considered. Validation of the results at leaf level has required an experimental setup based on Mu¨ nger cells to quantify temperature, relative humidity and the different heat fluxes for single bean leaves. experiments have been performed for three alternate low light/dark periods. It was shown that the agreement between numerical and experimental results increases with the airflow intensity: the results are in good agreement for air relative humidity...
Tipo: Journal Article Palavras-chave: COMPUTER SIMULATION; LEAF SURFACE; EVAPOTRANSPIRATION; STOMATAL RESISTANCE; INTEGRATED PEST MANAGEMENT; EVAPOTRANSPIRATION; BIOINSECTICIDE.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009f337c631&uri=/notices/prodinra1/2011/04/
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Comportements et dépenses alimentaires des ménages abidjanais en 1979 IRD
Vidal, C.; Le Pape, M..
Tipo: Text Palavras-chave: COUTUME ALIMENTAIRE; PRODUIT ALIMENTAIRE; BUDGET CONSOMMATION; CITADINITE.
Ano: 1986 URL: http://www.documentation.ird.fr/hor/fdi:23875
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Effects of fluctuating moisture and temperature regimes on the persistence of quiescent conidia of Isaria fumosorosea Inra
Bouamama, N.; Vidal, C.; Fargues, J..
Conidia of Isaria fumosorosea were submitted to three regimes of temperature and moisture to simulate microclimatic conditions which prevail in temperate (43% RH and 28 degrees C to 98% RH and 15 degrees C), subtropical (75% RH and 35 degrees C to 98% RH and 25 degrees C), and arid areas (13% RH and 40 degrees C to 33% RH and 15 degrees C) with daily fluctuating cycles. Germination, conidial viability, and virulence to Spodoptera frugiperda larvae were less affected after 20 days exposure under temperate cycling conditions than under arid and subtropical conditions. Exposure of conidia for 20 days to constant nocturnal simulated conditions of any tested regime weakly affected conidial persistence, whereas diurnal conditions exerted the most detrimental...
Tipo: Journal Article Palavras-chave: ZONE ARIDE; ZONE SUBTROPICALE; PAPILLON; SPORE; INVERTEBRE ISARIA FUMOSOROSEA; QUIESCENT CONIDIA; PERSISTENCE; SIMULATED CLIMATES; ENTOMOPATHOGENS; SURVIVAL; GERMINATION; VIRULENCE.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20115b17b62e&uri=/notices/prodinra1/2011/06/
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Effects of wetting on the persistence of quiescent conidia of Isaria fumosorosea Inra
Bouamama, N.; Vidal, C.; Fargues, J..
Quiescent conidia of Isaria fumosorosea were submitted to various wetting-drying cycles under different regimes of temperature and air humidity. Germination and viability of conidia collected on cultures freshly host-passed (P2) were not affected at 25 degrees C during five cycles at increasing wet phase duration (2-12 h per daily cycle) under any moisture conditions (13-86% RH). Infectivity levels remained stable, but mortality was slightly postponed. In vitro-cultured inocula (P5) were significantly affected after only one cycle at higher air humidity (75 and 86% RH) and temperature (35 and 40 degrees C). The persistence of I. fumosorosea conidia suspended in water soluble extracts of leaf surfaces (corn and cabbage) confirmed the better persistence of...
Tipo: Journal Article Palavras-chave: SPORE; ISOLATS FONGIQUES; CONTROLE MICROBIEN; STRESS MOUILLAGE/SECHAGE; ADAPTATION ECOLOGIQUE ENTOMOPATHOGENS; ISARIA FUMOSOROSEA; CONIDIAL PERSISTENCE; WETTING-DRYING STRESS; HOST PASSAGING; LEAF SURFACE SUBSTANCES; ECOLOGICAL FITNESS.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011986a8189&uri=/notices/prodinra1/2011/06/
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Identification of deep subaqueous co-seismic scarps through specific coeval sedimentation in Lesser Antilles: implication for seismic hazard ArchiMer
Beck, C.; Reyss, J-l; Leclerc, F.; Moreno, E.; Feuillet, Nathalie; Barrier, L.; Beauducel, F.; Boudon, G.; Clement, V.; Deplus, Christine; Gallou, N.; Lebrun, J-f; Le Friant, A.; Nercessian, A.; Paterne, M.; Pichot, Thibaud; Vidal, C..
During the GWADASEIS cruise (Lesser Antilles volcanic arc, February-March 2009) a very high resolution (VHR) seismic-reflection survey was performed in order to constrain Late Quaternary to Present faulting. The profiles we obtained evidence frequent "ponding" of reworked sediments in the deepest areas, similar to the deposition of Mediterranean "homogenites". These bodies are acoustically transparent (few ms t.w.t. thick) and are often deposited on the hanging walls of dominantly normal faults, at the base of scarps. Their thickness appears sufficient to compensate (i.e. bury) co-seismic scarps between successive earthquakes, resulting in a flat and horizontal sea floor through time. In a selected area (offshore Montserrat and Nevis islands), piston...
Tipo: Text
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00089/20040/21990.pdf
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Loin d'Abidjan : les cadres, urbanistes de l'intérieur : la préfecture de Toumodi : sociologie et géographie politiques de la production de l'espace habité IRD
Dubresson, A.; Vidal, C..
Tipo: Text Palavras-chave: SOCIETE URBAINE; POLITIQUE URBAINE; AMENAGEMENT URBAIN; CENTRE URBAIN SECONDAIRE; MOBILITE SPATIALE; INVESTISSEMENT; COMMUNAUTE VILLAGEOISE; HISTOIRE; RELATIONS VILLE CAMPAGNE; FONCIER URBAIN; GESTION FONCIERE; PROPRIETE FONCIERE; MODERNISATION; VILLAGE; HABITAT RURAL; CADRE; STRATIFICATION SOCIALE; POUVOIR LOCAL.
Ano: 1991 URL: http://www.documentation.ird.fr/hor/fdi:010017799
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Modelling temperature-dependent bionomics of Bemisia tabaci (Q-biotype) Inra
Bonato, O.; Lurette, A.; Vidal, C.; Fargues, J..
The influence of temperature (17, 21, 25, 30 and 35 °C) on life-history traits of a Q-biotype Bemisia tabaci population on tomato is studied. Temperature-dependent relationships are characterized for immature developmental rate, immature survival, fecundity, longevity and intrinsic rate of increase. Development time vary from 20 days at 30 °C to 56 days at 17 °C and the lowest thermal threshold is estimated at 10.2 °C. The optimal temperature for immature development is 32.5 °C. Total fecundity (eggs per female) ranges from 105.3 (at 21 °C) to 41 (at 35 °C). The longevity decreases with temperature increase. The intrinsic rate of increase ranges from 0.0450 (at 17 °C) to 0.123 (at 30 °C). The functional relationships between temperature and life-history...
Tipo: Journal Article Palavras-chave: ALEURODE DU TABAC; BIOTYPE BIONOMICS; MODELLING; Q-BIOTYPE.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008c09f2628&uri=/notices/prodinra1/2008/08/
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Pratiques de crise et conditions sociales à Abidjan 1979-1985 IRD
Vidal, C.; Le Pape, M..
Tipo: Text Palavras-chave: SOCIETE URBAINE; ORGANISATION SOCIALE; CLASSE DOMINEE; CRISE ECONOMIQUE; MOBILITE SOCIALE; ENQUETE; MENAGE; CATEGORIE SOCIOPROFESSIONNELLE; STRUCTURE FAMILIALE; LOGEMENT; ARTISAN; OUVRIER; BOURGEOISIE; CLASSE MOYENNE; MANOEUVRE; CHEF DE MENAGE.
Ano: 1986 URL: http://www.documentation.ird.fr/hor/fdi:37757
Registros recuperados: 9
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