Search results for " agricole"
showing 10 items of 196 documents
The Agr communication system provides a benefit to the populations of Listeria monocytogenes in soil
2014
International audience; In this study, we investigated whether the Agr communication system of the pathogenic bacterium Listeria monocytogenes was involved in adaptation and competitiveness in soil. Alteration of the ability to communicate, either by deletion of the gene coding the response regulator AgrA (response-negative mutant) or the signal pro-peptide AgrD (signal-negative mutant), did not affect population dynamics in soil that had been sterilized but survival was altered in biotic soil suggesting that the Agr system of L. monocytogenes was involved to face the complex soil biotic environment. This was confirmed by a set of co-incubation experiments. The fitness of the response-negat…
Mapping and determinism of soil microbial community distribution across an agricultural landscape.
2015
Article en open access; International audience; Despite the relevance of landscape, regarding the spatial patterning of microbial communities and the relative influence of environmental parameters versus human activities, few investigations have been conducted at this scale. Here, we used a systematic grid to characterize the distribution of soil microbial communities at 278 sites across a monitored agricultural landscape of 13km(2). Molecular microbial biomass was estimated by soil DNA recovery and bacterial diversity by 16S rRNA gene pyrosequencing. Geostatistics provided the first maps of microbial community at this scale and revealed a heterogeneous but spatially structured distribution…
Impact des digestats de méthanisation sur la qualité biologique des sols agricoles : nécessité de générer de nouvelles données pour objectiver
2021
National audience; La méthanisation est une technologie basée sur la dégradation par des micro-organismes de la matière organique, en conditions contrôlées et en l'absence dioxygène. Cette dégradation aboutit à la production d'un biogaz utilisé comme énergie renouvelable et d'un co-produit riche en matière organique appelé digestat. Ce digestat est au cœur de nombreuses interrogations, concernant les impacts engendrés par son épandage sur les sols. Avec l'essor de la méthanisation, la recherche s'intéresse à ses effets, afin de conserver des sols de qualité.
Pimasertib Versus Dacarbazine in Patients With Unresectable NRAS-Mutated Cutaneous Melanoma: Phase II, Randomized, Controlled Trial with Crossover
2020
This study investigated the efficacy and safety of pimasertib (MEK1/MEK2 inhibitor) versus dacarbazine (DTIC) in patients with untreated NRAS-mutated melanoma. Phase II, multicenter, open-label trial. Patients with unresectable, stage IIIc/IVM1 NRAS-mutated cutaneous melanoma were randomized 2:1 to pimasertib (60 mg
CADASTRAL MODELS IN EU MEMBER STATES
2019
Abstract Cadastres are always related to land: they are a creation of man as effect of his relationship with land. The different conditions of the Cadastre in 14 EU Member States, including the former EU Candidate States (that nowadays are also EU members), are shown in this paper. Half of EU countries store cadastral and registration data in the same database. Basically two original models of cadastral system exist in the EU, related with systems of land registration : 1) in the Central European model (beyond the area of the Germanic “Grundbuch”) Cadastre emerges as a graphic basis (map) of land registration (Land Registry), so that physical changes must be reflected in the Cadastre and le…
Contribution to development of microbial bioindicators for assessing the impact of agricultural pratices on soil
2015
Soil is the support of agricultural production. It performs many functions essential to the provision of ecosystem services necessary for the well-being of our societies. Soil physicochemical and biological properties have been altered by the development of intensive agriculture while it is a non-renewable resource, revealing the need to develop new management practices suitable for the sustainability of soil quality. This also marked the entry into the “Agroecology” era, which promotes the development of new agricultural systems optimizing services provided by biodiversity to reduce the use of inputs and energy use. To achieve this aim, the development of a range of indicators to assess th…
L'agriculture urbaine : une agriculture juridiquement comme les autres?
2019
International audience; En plein essor, l'agriculture urbaine se présente comme un défi pour le droit agricole, construit sur un paradigme géographique et sociologique : la ruralité. Dès lors, comment saisir juridiquement ces nouveaux projets productifs, aux formes variées et aux modèles économiques souvent hybrides ? Est-ce aux acteurs urbains de s'adapter à des règles venues d'ailleurs, ou au droit de se tordre pour accompagner le mouvement d'une agriculture des villes, qui questionne celle des champs ?
Potential predictability of crop impacting climate variables for East Africa and application to sorghum in the Mt Kenya area
2013
In Southern countries with rural low income populations, the vulnerability of rainfed agriculture to rainfall variability requires effective solutions to mitigate the effects of climatic hazards on crops. Predicting the characteristics of rainy seasons some time before they start should help the establishment of agricultural adaptation strategies to rainfall hazards. This is the objective of the present study, focused on East Africa (Kenya and northern Tanzania), and divided in three parts:- Define and document intra-seasonal descriptors (ISD) that will be considered in the predictability study. A new methodological approach has been developed in order to define the onset date (ORS) and the…
Déclaration et vérification des créances. Les caisses de mutualité sociale agricole peuvent déclarer les créances des organismes dont elles recouvren…
2006
International audience; (Cass. com., 21 févr. 2006, Caisse de mutualité sociale agricole du Gard c/ EARL Deydier, pourvoi n° 04-20.211, arrêt n° 257 FS-P+B+I+R, D. 2006, AJ p. 718, obs. A. Lienhard ; Juris-Data, n° 2006-032304 ; JCP 2006, I, 139, n° 6, obs. P. Pétel)