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Search Results: 1 - 10 of 461810 matches for " A Ducos "
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Multivariate restricted maximum likelihood estimation of genetic parameters for growth, carcass and meat quality traits in French Large White and French Landrace pigs
A Ducos, JP Bidanel, V Ducrocq, D Boichard, E Groeneveld
Genetics Selection Evolution , 1993, DOI: 10.1186/1297-9686-25-5-475
The supply of therapeutic education for adults diabetic patients in the region of le-de-France: a challenge for equity
Ducos J
Pratiques et Organisation des Soins , 2012,
Abstract: Summary Aim: The therapeutic education of a patient (TEP) aims to provide knowledge and competencies to the patient which enable him to control his sickness and to improve his standard of life. The aim of this survey was to establish a supply-inventory of the TEP programs for adult diabetic patients, with the exception of pregnant diabetic patients, of the le-de-France region hospitals as well as in ambulatory medicine with the objective of adapting itself with the supply and to assess the equity. Methods: Following a census of structures that had obtained funding for the TEP programs in 2008, the data had been collected on the basis of a closed questionnaire conducted through telephonic interviews. The data was related to the structure of the programs, the academic training of the participants, the pluri-disciplinary characteristic of the TEP, the relations with the doctor, the kind of sessions, the number of patients followed in 2008 and the obstacles as well as the engines for the development of the TEP. Results: The TEP supply comprises 67 structures out of which 46 medical institutes (68.7%), seven networks, three health centres, six health analysis centres, one insurance agency and three co-operative associations. Regarding the collective sessions, 84.9% were conducted in medical institutes out of which 37.1% in the various departments of Medical Colleges. All included, 9.2% of the diabetic patients of le-de-France had benefitted from the TEP in 2008, out of which 6.5% had benefited from collective sessions. The supply seemed inequitable. Conclusion: The TEP supply was essentially in hospitals. In order to develop a balanced supply, with the aid of a regional management, it seemed necessary to select the patients that must benefit preferentially from the TEP programs, to train general medical practitioners and to redeploy in part the offer towards the ambulatory sector. Prat Organ Soins. 2012;43(1):1-7
L’archéozoologie au CRFJ
Pierre Ducos
Bulletin du Centre de Recherche Fran?ais de Jérusalem , 2008,
Abstract: à partir la fin du Paléolithique, une succession de changements culturels dont les plus décisifs sont sans doute la sédentarisation, la domestication des plantes, puis celle des animaux, l’invention de la poterie, et enfin l’usage des métaux, ont mené les sociétés humaines, d’une organisation en groupes mobiles de chasseurs-cueilleurs jusqu’aux débuts de l’urbanisation. La période pendant laquelle la domestication des animaux s’est réalisée et généralisée s’étend pour sa part sur plus d’un mi...
Archaeozoology at the CRFJ
Pierre Ducos
Bulletin du Centre de Recherche Fran?ais de Jérusalem , 2008,
Abstract: From the end of the Paleolithic period, a succession of cultural changes led the human societies from an organization of mobile hunter-gatherer groups to the beginnings of urbanization. Among the most decisive of the changes were undoubtedly: sedentarization, plant and then animal domestication, the invention of pottery, and lastly the use of metal. The period during which domestication of animals began extends over more than a millennium. It began in the early PPNB (Pre Pottery Neolithic B, ...
A pericentric inversion of chromosome 4 in pigs
A Ducos, A Pinton, A Séguéla, HM Berland, MF Blanc, A Darré, P Pinton, M Yerle, R Darré
Genetics Selection Evolution , 1997, DOI: 10.1186/1297-9686-29-3-383
A new Robertsonian translocation in Holstein-Friesian cattle
A Pinton, A Ducos, HM Berland, A Séguéla, MF Blanc, A Darré, S Mimar, R Darré
Genetics Selection Evolution , 1997, DOI: 10.1186/1297-9686-29-4-523
Statistically optimized inversion algorithm for enhanced retrieval of aerosol properties from spectral multi-angle polarimetric satellite observations
O. Dubovik, M. Herman, A. Holdak, T. Lapyonok, D. Tanré, J. L. Deuzé, F. Ducos, A. Sinyuk,A. Lopatin
Atmospheric Measurement Techniques (AMT) & Discussions (AMTD) , 2011,
Abstract: The proposed development is an attempt to enhance aerosol retrieval by emphasizing statistical optimization in inversion of advanced satellite observations. This optimization concept improves retrieval accuracy relying on the knowledge of measurement error distribution. Efficient application of such optimization requires pronounced data redundancy (excess of the measurements number over number of unknowns) that is not common in satellite observations. The POLDER imager on board the PARASOL micro-satellite registers spectral polarimetric characteristics of the reflected atmospheric radiation at up to 16 viewing directions over each observed pixel. The completeness of such observations is notably higher than for most currently operating passive satellite aerosol sensors. This provides an opportunity for profound utilization of statistical optimization principles in satellite data inversion. The proposed retrieval scheme is designed as statistically optimized multi-variable fitting of all available angular observations obtained by the POLDER sensor in the window spectral channels where absorption by gas is minimal. The total number of such observations by PARASOL always exceeds a hundred over each pixel and the statistical optimization concept promises to be efficient even if the algorithm retrieves several tens of aerosol parameters. Based on this idea, the proposed algorithm uses a large number of unknowns and is aimed at retrieval of extended set of parameters affecting measured radiation. The algorithm is designed to retrieve complete aerosol properties globally. Over land, the algorithm retrieves the parameters of underlying surface simultaneously with aerosol. In all situations, the approach is anticipated to achieve a robust retrieval of complete aerosol properties including information about aerosol particle sizes, shape, absorption and composition (refractive index). In order to achieve reliable retrieval from PARASOL observations even over very reflective desert surfaces, the algorithm was designed as simultaneous inversion of a large group of pixels within one or several images. Such multi-pixel retrieval regime takes advantage of known limitations on spatial and temporal variability in both aerosol and surface properties. Specifically the variations of the retrieved parameters horizontally from pixel-to-pixel and/or temporary from day-to-day are enforced to be smooth by additional a priori constraints. This concept is expected to provide satellite retrieval of higher consistency, because the retrieval over each single pixel will be benefiting from coincident aerosol information from neighboring pixels, as well, from the information about surface reflectance (over land) obtained in preceding and consequent observations over the same pixel. The paper provides in depth description of the proposed inversion concept, illustrates the algorithm performance by a series of numerical tests and presents the examples of preliminary retrieval results
Remote sensing of aerosols by using polarized, directional and spectral measurements within the A-Train: the PARASOL mission
D. Tanré, F. M. Bréon, J. L. Deuzé, O. Dubovik, F. Ducos, P. Fran ois, P. Goloub, M. Herman, A. Lifermann,F. Waquet
Atmospheric Measurement Techniques (AMT) & Discussions (AMTD) , 2011,
Abstract: Instruments dedicated to aerosol monitoring are recently available and the POLDER (POLarization and Directionality of the Earth's Reflectances) instrument on board the PARASOL (Polarization & Anisotropy of Reflectances for Atmospheric Sciences coupled with Observations from a Lidar) mission is one of them. By measuring the spectral, angular and polarization properties of the radiance at the top of the atmosphere, in coordination with the other A-Train instruments, PARASOL provides the aerosol optical depths (AOD) as well as several optical and microphysical aerosol properties. The instrument, the inversion schemes and the list of aerosol parameters are described. Examples of retrieved aerosol parameters are provided as well as innovative approaches and further inversion techniques.
Estimation of the proportion of genetically unbalanced spermatozoa in the semen of boars carrying chromosomal rearrangements using FISH on sperm nuclei
Alain Pinton, Alain Ducos, Martine Yerle
Genetics Selection Evolution , 2004, DOI: 10.1186/1297-9686-36-1-123
Abstract: (To access the full article, please see PDF)
Chromosomal rearrangements in cattle and pigs revealed by chromosome microdissection and chromosome painting
Alain Pinton, Alain Ducos, Martine Yerle
Genetics Selection Evolution , 2003, DOI: 10.1186/1297-9686-35-7-685
Abstract: (To access the full article, please see PDF)
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