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Sebastien Fleuret 《GeoJournal》2011,76(2):177-189
New organizations of care and social service delivery (especially the development of coordination and networks) are leading
to the definition new spaces. This article is based on examples of restructuring of health care systems in France and in Quebec.
Both are moving towards more integration of delivery of care. In Quebec, 95 territories were created with a leading structure:
the center for health and social services. This structure is responsible for bringing all the providers of services into a
network and for giving to the population the guarantee of continuity and quality of care. It results in a new geography of
health at the local scale. In France, continuity and quality of care are also used as arguments to justify changes in the
organization of the system. 相似文献
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Zakaria ENDUT NG Tham Fatt Jasmi Hafiz ABDUL AZIZ Sebastien MEFFRE Charles MAKOUNDI 《《地质学报》英文版》2015,89(6):1914-1925
The Penjom Gold Mine is located 30 km from the Bentong-Raub Suture at the western boundary of the Central Belt in Peninsular Malaysia. Gold mineralization hosted within the vein system is associated with pyrite, arsenopyrite, and minor base metals including galena. Trace element and lead isotope analysis was undertaken on nine samples that represent two stages of galena formed during two tectonic events. Both the Pb isotopes and the trace elements show that the first stage galena within the mineralized areas at the footwall has different geochemical characteristics compared with galena in non mineralized areas in the hanging wall, suggesting that galena crystallized from two different ore fluids and probably at two different times. Higher Te, Se and Bi in the galena from the mineralized area may indicate hydrothermal fluids that migrate through the structural conduit and leached out the metal along the pathway that consist of dominant carbonaceous unit. The Pb isotopic ratio composition are transitional between the bulk crustal growth and an upper crustal growth curve, indicating that derivation was from arc rocks associated with continental crust or a crustal source that includes arc volcanic and old continental sedimentary rocks. 相似文献
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J. Todd Hoeksema Yang Liu Keiji Hayashi Xudong Sun Jesper Schou Sebastien Couvidat Aimee Norton Monica Bobra Rebecca Centeno K. D. Leka Graham Barnes Michael Turmon 《Solar physics》2014,289(9):3483-3530
The Helioseismic and Magnetic Imager (HMI) began near-continuous full-disk solar measurements on 1 May 2010 from the Solar Dynamics Observatory (SDO). An automated processing pipeline keeps pace with observations to produce observable quantities, including the photospheric vector magnetic field, from sequences of filtergrams. The basic vector-field frame list cadence is 135 seconds, but to reduce noise the filtergrams are combined to derive data products every 720 seconds. The primary 720 s observables were released in mid-2010, including Stokes polarization parameters measured at six wavelengths, as well as intensity, Doppler velocity, and the line-of-sight magnetic field. More advanced products, including the full vector magnetic field, are now available. Automatically identified HMI Active Region Patches (HARPs) track the location and shape of magnetic regions throughout their lifetime. The vector field is computed using the Very Fast Inversion of the Stokes Vector (VFISV) code optimized for the HMI pipeline; the remaining 180° azimuth ambiguity is resolved with the Minimum Energy (ME0) code. The Milne–Eddington inversion is performed on all full-disk HMI observations. The disambiguation, until recently run only on HARP regions, is now implemented for the full disk. Vector and scalar quantities in the patches are used to derive active region indices potentially useful for forecasting; the data maps and indices are collected in the SHARP data series, hmi.sharp_720s. Definitive SHARP processing is completed only after the region rotates off the visible disk; quick-look products are produced in near real time. Patches are provided in both CCD and heliographic coordinates. HMI provides continuous coverage of the vector field, but has modest spatial, spectral, and temporal resolution. Coupled with limitations of the analysis and interpretation techniques, effects of the orbital velocity, and instrument performance, the resulting measurements have a certain dynamic range and sensitivity and are subject to systematic errors and uncertainties that are characterized in this report. 相似文献
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Matching seismic data in assisted history matching processes can be a challenging task. One main idea is to bring flexibility
in the choice of the parameters to be perturbed, focusing on the information provided by seismic data. Local parameterization
techniques such as pilot-point or gradual deformation methods can be introduced, considering their high adaptability. However,
the choice of the spatial supports associated to the perturbed parameters is crucial to successfully reduce the seismic mismatch.
The information related to seismic data is sometimes considered to initialize such local methods. Recent attempts to define
the regions adaptively have been proposed, focusing on the mismatch between simulated and reference seismic data. However,
the regions are defined manually for each optimization process. Therefore, we propose to drive the definition of the parameter
support by performing an automatic definition of the regions to be perturbed from the residual maps related to the 3D seismic
data. Two methods are developed in this paper. The first one consists in clustering the residual map with classification algorithms.
The second method proposes to drive the generation of pilot point locations in an adaptive way. Residual maps, after proper
normalization, are considered as probability density functions of the pilot point locations. Both procedures lead to a complete
adaptive and highly flexible perturbation technique for 3D seismic matching. A synthetic study based on the PUNQ test case
is introduced to illustrate the potential of these adaptive strategies. 相似文献
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Nathalie Fagel Sebastien Bertrand Nadine Mattielli Delphine Gilson Luis Chirinos Gilles Lepoint Roberto Urrutia 《第四纪科学杂志》2010,25(7):1100-1112
In this paper, we compare the elemental and isotopic (C, N, Pb) geochemistry of lake sediments from two contrasted environments in south‐central Chile. The first lake, Laguna Chica de San Pedro (LCSP), is situated in the urbanised area of the Biobio Region (36°S). The second lake, Lago Puyehue (40° S), is located 400 km to the southeast of LCSP and within an Andean national park. Our aim is to identify environmental impacts associated with increasing industrial activities and land degradation during the last 150 a. In LCSP, shifts in C/N atomic ratios, δ13C and δ15N from 1915–1937 to the late 1980s are attributed to successive land degradation episodes in the lake watershed. Based on a Pb isotopic mixing model, we estimate that up to 20% of lead in LCSP sediments is supplied from urban atmospheric pollution. By contrast, human impact in the watershed of Lago Puyehue is very limited. We observe no change in organic geochemistry during the last 150 a and lead contamination remains lower than 5%, even during the last decades. Although contamination levels are much higher in LCSP than in Lago Puyehue, a peak in anthropogenic Pb is recorded during the same period (1974–1976) at both sites. This maximum contamination level is consistent with increased industrial activity in the vicinity of Concepción. Copyright © 2010 John Wiley & Sons, Ltd. 相似文献
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新疆东天山十里坡自然铜矿化区马头滩组玄武岩锆石LA-ICPMS U-Pb年龄及其意义 总被引：2，自引：8，他引：2
新疆北部东天山十里坡地区近年来新发现了与玄武岩有关的自然铜矿化这一新类型。自然铜的赋矿地层-马头滩组中的赋矿玄武岩锆石 LA-ICPMS 年龄为307±4Ma,对应于晚石炭世,显示该套赋矿地层属于上石炭统。从该区自然铜赋矿火山岩所限定的时间看,成矿背景应属于后碰撞环境。东天山十里坡地区自然铜矿化的构造背景、成矿系统和矿化类型与峨眉山玄武岩自然铜矿化和美国基威诺铜矿床均存在差异,自然铜矿化的成因可能也存在差异。 相似文献
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Tomoki Tozuka Jing-Jia Luo Sebastien Masson Swadhin K. Behera Toshio Yamagata 《Dynamics of Atmospheres and Oceans》2005,39(1-2):41
Using an output from 200-year integration of the Scale Interaction Experiment of EU project-F1 model (SINTEX-F1), the annual ENSO reproduced in the coupled general circulation model is investigated, suggesting the importance of reproducing an annual cycle in realistically simulating ENSO events. Although many features of the annual ENSO are reproduced, the northward expansion of sea surface temperature anomaly (SSTA) in the eastern tropical Pacific stays south of the equator. It is suggested that this model bias is due to the excitation of the too strong Rossby waves in the southeastern tropical Pacific, which reflect at the western boundary and intrude into the eastern equatorial Pacific. The zonal wind stress anomaly along the equator also plays an important role in generating the equatorial Kelvin waves. The amplitude of SSTA for the annual ENSO mode is reproduced, but its variance is only 20% of the observation; this is again due to the lack of northward migration of seasonal SSTA in the equatorial region and weaker coastal Kelvin waves along South America. Remedies for the model bias are discussed. 相似文献
9.
High resolution simulation of the South Asian monsoon using a variable resolution global climate model 总被引：2，自引：1，他引：1
T. P Sabin R. Krishnan Josefine Ghattas Sebastien Denvil Jean-Louis Dufresne Frederic Hourdin Terray Pascal 《Climate Dynamics》2013,41(1):173-194
This study examines the feasibility of using a variable resolution global general circulation model (GCM), with telescopic zooming and enhanced resolution (~35 km) over South Asia, to better understand regional aspects of the South Asian monsoon rainfall distribution and the interactions between monsoon circulation and precipitation. For this purpose, two sets of ten member realizations are produced with and without zooming using the LMDZ (Laboratoire Meteorologie Dynamique and Z stands for zoom) GCM. The simulations without zoom correspond to a uniform 1° × 1° grid with the same total number of grid points as in the zoom version. So the grid of the zoomed simulations is finer inside the region of interest but coarser outside. The use of these finer and coarser resolution ensemble members allows us to examine the impact of resolution on the overall quality of the simulated regional monsoon fields. It is found that the monsoon simulation with high-resolution zooming greatly improves the representation of the southwesterly monsoon flow and the heavy precipitation along the narrow orography of the Western Ghats, the northeastern mountain slopes and northern Bay of Bengal (BOB). A realistic Monsoon Trough (MT) is also noticed in the zoomed simulation, together with remarkable improvements in representing the associated precipitation and circulation features, as well as the large-scale organization of meso-scale convective systems over the MT region. Additionally, a more reasonable simulation of the monsoon synoptic disturbances (lows and disturbances) along the MT is noted in the high-resolution zoomed simulation. On the other hand, the no-zoom version has limitations in capturing the depressions and their movement, so that the MT zone is relatively dry in this case. Overall, the results from this work demonstrate the usefulness of the high-resolution variable resolution LMDZ model in realistically capturing the interactions among the monsoon large-scale dynamics, the synoptic systems and the meso-scale convective systems, which are essential elements of the South Asian monsoon system. 相似文献
10.
Sugata Kaviraj Sebastien Peirani Sadegh Khochfar Joseph Silk Scott Kay 《Monthly notices of the Royal Astronomical Society》2009,394(4):1713-1720
We demonstrate that the large scatter in the ultraviolet (UV) colours of intermediate-mass early-type galaxies in the local Universe and the inferred low-level recent star formation (RSF) in these objects can be reproduced by minor mergers in the standard Λ cold dark matter (ΛCDM) cosmology. Numerical simulations of mergers with mass ratios ≤1:4, with reasonable assumptions for the ages, metallicities and dust properties of the merger progenitors, produce good agreement with the observed UV colours of the early-type population, if the infalling satellites are assumed to have (cold) gas fractions ≥20 per cent. Early-types that satisfy ( NUV − r ) ≲ 3.8 are likely to have experienced mergers with mass ratios between 1:4 and 1:6 within the last ∼1.5 Gyr, while those that satisfy 3.8 < ( NUV − r ) < 5.5 are consistent with either recent mergers with mass ratios ≤1:6 or mergers with higher mass ratios that occurred more than ∼1.5 Gyr in the past. We demonstrate that the early-type colour–magnitude relations and colour distributions, in both the UV and optical spectral ranges, are consistent with the expected frequency of minor merging activity in the standard ΛCDM cosmology at low redshift. We present a strong plausibility argument for minor mergers to be the principal mechanism behind the large UV scatter and associated low-level RSF observed in early-type galaxies in the nearby Universe. 相似文献