Nouvelles observations sur la stratigraphie des formations holocènes (récent) de la plaine de la Lys à Houplines (Nord)

Deux sondages mécaniques réalisés dans un vallon affluent de la Lys, près d’Houplines, permettent d’identifier une séquence organo-minérale d’époque gallo-romaine, traduisant une période de faible activité hydro-dynamique. Il apparaît également que l’incision des vallons dans les formations du Pléistocène supérieur est importante, supérieure à 7,70 m, de même que le remblaiement historique qui atteint 3,30 m sur le site d’étude.Two sections digged with a mechanical excavator were opened in a tributary valley of the Lys river, close to Houplines. They allowed to identify an organomineral sequence of Gallo-Roman period, corresponding to a period of low hydrodynamic activity. It appears also that the incision of the small valleys within late Pleistocene formations is higher than 7,70 m, whereas the historical fill reaches 3,30 m at the same site

Etude des enregistrements sédimentaires holocènes des paléoméandres du Rhône dans le secteur des basses terres (Ain, Isère, France)

Cet article présente les résultats de l’analyse du remplissage sédimentaire de plusieurs paléoméandres holocènes conservés à la surface de la plaine alluviale du Rhône dans le secteur des Basses Terres, secteur situé à 70 km en amont de Lyon. L’objectif est d’identifier les fluctuations paléohydrologiques du Rhône et d’en déterminer les causes (contrôles locaux, anthropiques, climatiques). Les premiers résultats montrent une parenté certaine des modes d’alluvionnement entraînant le colmatage des paléoméandres, avec une succession de dépôts alluvionnés par décantation ou par des courants tractifs (suspensions uniformes), ainsi que le développement de séquences organo-minérales dans la partie supérieure du remblaiement. On observe néanmoins une grande diversité de détail dans la nature des dépôts et leur répartition au sein des sondages (limons massifs ou microlaminés, limon organique, tourbe, tuf). Les vitesses d’alluvionnement distinguent deux ensembles de paléoméandres, avec des taux de l’ordre de 2,5 mm/an (Atlantique récent et Subboréal) et 6,5 mm/an (Subboréal et Subatlantique). Dans le paléoméandre des Marais, la confrontation des données issues de la susceptibilité magnétique, de la palynologie et de l’analyse granulométrique met en évidence deux périodes de forte activité hydrologique, centrées sur le début de l’Epoque romaine et le Haut-Moyen-Age.This paper points out the results on the sedimentary fill of a set of former wandering meanders that have been preserved in the Upper Rhône river alluvial plain (Basses Terres floodplain), 50 km upstream from Lyon. The objective is to attempt the reconstruction of the hydrosedimentary fluctuations of the river and their origin. Modes of sediment fills vary from one palaeomeander to the other but common features can be found. Fine silt deposits occur during the first phases by processes of mineral decantation in an open area or by tractive currents (uniform suspension). Organic layers are interstratified with silty layers in the infill’s upper part. Nevertheless, detailed stratigraphical studies specify the diversity of palaeomeander fills (homogeneous or micro-laminated silts, organic silt, gyttja, peat, tufa). Accumulation rates within the cutoffs vary from 2,5 mm yr-1 (recent Atlantic and Subboreal palaeomeanders) to 6 mm yr-1 (Subboreal and Subatlantic palaeomeanders). Informations given by magnetic susceptibility, palynology and grain-size characteristics of sediments analysis in the Marais palaeochannel point out two phases of high fluvial activity, during the beginning of the Gallo-Roman period and during the Dark Age

The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory

The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in July 2014. It pursues three core programs: APOGEE-2,MaNGA, and eBOSS. In addition, eBOSS contains two major subprograms: TDSS and SPIDERS. This paper describes the first data release from SDSS-IV, Data Release 13 (DR13), which contains new data, reanalysis of existing data sets and, like all SDSS data releases, is inclusive of previously released data. DR13 makes publicly available 1390 spatially resolved integral field unit observations of nearby galaxies from MaNGA,the first data released from this survey. It includes new observations from eBOSS, completing SEQUELS. In addition to targeting galaxies and quasars, SEQUELS also targeted variability-selected objects from TDSS and X-ray selected objects from SPIDERS. DR13 includes new reductions ofthe SDSS-III BOSS data, improving the spectrophotometric calibration and redshift classification. DR13 releases new reductions of the APOGEE-1data from SDSS-III, with abundances of elements not previously included and improved stellar parameters for dwarf stars and cooler stars. For the SDSS imaging data, DR13 provides new, more robust and precise photometric calibrations. Several value-added catalogs are being released in tandem with DR13, in particular target catalogs relevant for eBOSS, TDSS, and SPIDERS, and an updated red-clump catalog for APOGEE.This paper describes the location and format of the data now publicly available, as well as providing references to the important technical papers that describe the targeting, observing, and data reduction. The SDSS website, http://www.sdss.org, provides links to the data, tutorials and examples of data access, and extensive documentation of the reduction and analysis procedures. DR13 is the first of a scheduled set that will contain new data and analyses from the planned ~6-year operations of SDSS-IV.PostprintPeer reviewe

ECMO for COVID-19 patients in Europe and Israel

Since March 15th, 2020, 177 centres from Europe and Israel have joined the study, routinely reporting on the ECMO support they provide to COVID-19 patients. The mean annual number of cases treated with ECMO in the participating centres before the pandemic (2019) was 55. The number of COVID-19 patients has increased rapidly each week reaching 1531 treated patients as of September 14th. The greatest number of cases has been reported from France (n = 385), UK (n = 193), Germany (n = 176), Spain (n = 166), and Italy (n = 136) .The mean age of treated patients was 52.6 years (range 16–80), 79% were male. The ECMO configuration used was VV in 91% of cases, VA in 5% and other in 4%. The mean PaO2 before ECMO implantation was 65 mmHg. The mean duration of ECMO support thus far has been 18 days and the mean ICU length of stay of these patients was 33 days. As of the 14th September, overall 841 patients have been weaned from ECMO support, 601 died during ECMO support, 71 died after withdrawal of ECMO, 79 are still receiving ECMO support and for 10 patients status n.a. . Our preliminary data suggest that patients placed on ECMO with severe refractory respiratory or cardiac failure secondary to COVID-19 have a reasonable (55%) chance of survival. Further extensive data analysis is expected to provide invaluable information on the demographics, severity of illness, indications and different ECMO management strategies in these patients

The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III

The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical spectrograph, a new near-infrared high-resolution spectrograph, and a novel optical interferometer. All of the data from SDSS-III are now made public. In particular, this paper describes Data Release 11 (DR11) including all data acquired through 2013 July, and Data Release 12 (DR12) adding data acquired through 2014 July (including all data included in previous data releases), marking the end of SDSS-III observing. Relative to our previous public release (DR10), DR12 adds one million new spectra of galaxies and quasars from the Baryon Oscillation Spectroscopic Survey (BOSS) over an additional 3000 deg2 of sky, more than triples the number of H-band spectra of stars as part of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE), and includes repeated accurate radial velocity measurements of 5500 stars from the Multi-object APO Radial Velocity Exoplanet Large-area Survey (MARVELS). The APOGEE outputs now include the measured abundances of 15 different elements for each star. In total, SDSS-III added 5200 deg2 of ugriz imaging; 155,520 spectra of 138,099 stars as part of the Sloan Exploration of Galactic Understanding and Evolution 2 (SEGUE-2) survey; 2,497,484 BOSS spectra of 1,372,737 galaxies, 294,512 quasars, and 247,216 stars over 9376 deg2; 618,080 APOGEE spectra of 156,593 stars; and 197,040 MARVELS spectra of 5513 stars. Since its first light in 1998, SDSS has imaged over 1/3 of the Celestial sphere in five bands and obtained over five million astronomical spectra. \ua9 2015. The American Astronomical Society

Violent Governance, Identity and the Production of Legitimacy: Autodefensas in Latin America

This article examines the intersections of violence, governance, identity and legitimacy in relation to autodefensas (self-defence groups) in Latin America, focusing on Mexico and Colombia. By shifting focus from the question of where legitimacy lies to how it is produced and contested by a range of groups, we challenge the often presumed link between the state and legitimacy. We develop the idea of a field of negotiation and contestation, firstly, to discuss and critique the concept of state failure as not merely a Western hegemonic claim but also a strategic means of producing legitimacy by autodefensas. Secondly, we employ and enrich the notion of violent pluralism to discuss the pervasiveness of violence and the role of neoliberalism, and to address the question of non-violent practices of governance. We argue that the idea of a field of contestation and negotiation helps to understand the complexity of relationships that encompass the production of legitimacy and identity through (non)violent governance, whereby lines between (non)state, (non)violence, and (il)legitimacy blur and transform. Yet, we do not simply dismiss (binary) distinctions as these continue to be employed by groups in their efforts to produce, justify, challenge, contest and negotiate their own and others’ legitimacy and identity

Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good