Search results for "Hess"
showing 10 items of 97 documents
Los caminos de la gobernanza, Expo Zaragoza 2008 España
2005
Am 16. Dezember 2004 wählte das Bureau international des expositions (B.I.E.) Spanien und seine Kandidatenstadt, die Metropole Saragossa, als Organisationsland für die nächste internationale Ausstellung „International Exhibition of Zaragoza Spain 2008: Water and Sustainable Development“. Wir analysieren zunächst die Entwicklung "der Wege" der Kandidaturen zur Wahl der Gastgeberstadt der Internationalen Ausstellung 2008, dann greifen wir in einem zweiten Mal den gesamten Vorgang der Ausarbeitung, Begründung und Durchführung der Internationalen Ausstellung 2008 in Saragossa auf im Kontext der Globalisierung neue städtische Formen und Formen des Regierens hervorbringen, indem alle finanziellen…
The Coming Crisis in the Spanish Wine Industry
1993
It appears quite likely that the worldwide demand for wine has been declining for over a decade now. While a number of reasons for this changing consumer behaviour have been advanced, no one really knows what factors are driving this market downward. This changing demand structure has very serious implications for Spanish wine makers because the fastest decline in demand is at the low priced end of the market. That is exactly the part of the market where Spanish wine makers have their strongest position. Four endgame strategies available to Spanish wine makers are presented and analyzed. Finally, a four step action program is outlined that is intended to give Spanish makers their best chanc…
Extrapolation des inventaires de biodiversité incomplets : comment estimer au mieux le nombre d’espèces manquantes et prévoir l’effort additionnel d’…
2016
While approaching or even reaching total completeness remains the idealgoal of any species inventory, incomplete samplings are deemed to become more often the rule, that are significantly more difficult to cope with (such as (micro-) invertebrates, for example).However, once post-operated appropriately, incomplete samplings may provide farmore data than it would seem and it is indeed possible to obtain valuable extra information froma reliable mode of extrapolation of the so-called Species Accumulation Curve.In fact, numerous tools designed for the exploitation of incomplete samplings havealready been proposed in the literature but the concern, with these numerous different tools, isprecise…
Le "Siddhartha" de Hermann Hesse: Une intégration jungienne de l'Orient
2004
International audience
Anne (duchesse)
2008
Entrée de dictionnaire; Dictionnaire d'histoire de Bretagne
Variations spatiales et temporelles de communautés adventices des cultures annuelles en France
2010
Résumé de thèse; National audience
Gestion territoriale des adventices : effets des propriétés du paysage sur les communautés adventices et sur leur régulation par les carabidae
2015
Landscape-scale management is known to affect pest and biodiversity levels in agroecosystems. Here, we focus on the lanscape drivers of arable weeds, first by reviewing evidence of direct landscape effects on weed species richness and abundance and then by analyzing current knowledge on landscape effects on carabids, which are well-known weed seed predators that contribute to the biological regulation of weeds. Our analysis shows that (i) heterogeneous landscapes usually harbor higher species richness and more diversified communities than simple ones, (ii) total weed and carabid abundances appear seldomly affected by the landscape context of arable fields and (iii) weed seed predation in fi…
Le syndrome des basses richesses de la betterave sucrière en Bourgogne, un modèle de maladies infectieuses émergentes - Bilan des recherches 1997-2007
2008
National audience; Une maladie inconnue de la betterave sucrière est apparue en Côte d'Or au début des années 1990 et a gagné le reste du bassin sucrier du Centre-est (Bourgogne et Jura). Les programmes d'étude financés par la filière betterave-sucre et Conseil régional de Bourgogne de 1997 à 2007, ont permis d'en élucider entièrement l'étiologie et la transmission, de développer des méthodes de diagnostic moléculaire, et de parvenir à une compréhension globale de son épidémiologie. Les méthodes de lutte directes et agronomiques préconisées ont montré leur efficacité pour limiter les pertes de rendement en sucre associées à cette maladie. Par ailleurs, la biologie de bactéries pathogènes ha…
Rôle étiologique du phytoplasme du stolbur et d'un bacterium-like organism (BLO) dans le syndrôme des basses richesses (SBR) de la betterave sucrière…
2002
*UMR Biochimie, biologie cellulaire et écologie des interactions plantes/microorganismes domaine d'Epoisses 21110 Bretenières Diffusion du document : UMR Biochimie, biologie cellulaire et écologie des interactions plantes/microorganismes domaine d'Epoisses 21110 Bretenières Diplôme : Dr. d'Université
The syndrome "basses richesses" of sugar beet in France is associated with different pathogen types and insect vectors
2007
International audience; The syndrome “basses richesses” (SBR) of sugar beet in France is associated with two phloem-restricted uncultivable bacteria: a stolbur phytoplasma and a y-3 proteobacteria. The known vector of proteobacteria is a cixiid planthopper, Pentastiridius leporinus (Hemiptera Cixiidae), formerly shown to transmit both the prokaryotes. The role of P. leporinus and of two other planthopper species, Cixius wagneri and Hyalesthes obsoletus, in spreading the two pathogens to sugar beet were compared and quantified. Because of its abundance and high infection rates with proteobacterium, P. leporinus was confirmed to be the economic vector of SBR disease. P. leporinus and C. wagne…