bluuebunny/crossref_metadata_2025_split huggingface dataset:
Contribution a l'etude sedimentologique de la formation des 'gres a Roseaux' (Keuper moyen) dans la region de Hinckange (Moselle)
Authors: Desprairies Alain , Palain Christian , Plaziat Jean Claude 
Published: March 2020

Abstract
In the arenaceous facies of the middle Keuper (Triassic) Roseaux sandstone formation (Moselle, France) channel sandstones occur above obliquely cross-bedded sandstones. A rhythmic succession is observed in which the initial unit is a breccia derived from erosion of older units. The erosion scars can be recognized almost solely by the presence of the breccias, but the extent of reworking can be determined by granulometric and clay mineral studies. Rhaetian (upper Triassic) sandstones are clearly distinguishable on the basis of their clay minerals. On the other hand, broad analogies can be recognized between the Roseaux sandstone, the sandstones of the Lettenkohle formation, and the paralic-type Swiss molasse deposits.
Le cratere de Tenoumer (Mauritanie) et ses laves
Authors: Monod Theodore , Pomerol Charles 
Published: March 2020

Abstract
In this preliminary study of the Guelb Tenoumer, the authors determine the distribution of the lavas and their nature: they are not basalts as might be supposed from their appearance, but rhyodacites. No fact can at present support the hypothesis of a meteoritic or explosive origin of this crater which the authors consider as a collapse caldera, apparently of a type with ring-dikes.
Chrome, nickel et cobalt dans les laves de la region du Mont-Dore
Authors: Letolle Rene , Kulbicki G. 
Published: March 2020

Abstract
These three elements [chromium, nickel, and cobalt] have been determined by UV spectrography in 150 eruptive rocks from Mont-Dore [France], ranging from the Miocene to the present. The behavior of the elements studied is analyzed as a function of the contents of iron and magnesium. The evolution of the series is compared from this angle with that of a certain number of foreign [volcanic] series.
La fin de la nappe de Morcles dans le massif du Haut-Giffre
Authors: Debelmas Jacques , Uselle Jean Pierre 
Published: March 2020

Abstract
The Plate and Haut-Giffre massifs in Haute-Savoie (France) and the Dents du Midi massif in Switzerland are described. The Morcles nappe of Switzerland apparently does not extend southward into France, one of the rare cases where a geologic boundary corresponds closely to a political boundary.
Nouvelles observations stratigraphiques sur le Cretace superieur du synclinal de Glandage-Creyers (Drome); repercussions paleogeographiques
Authors: Porthault Bernard 
Published: March 2020

Abstract
New paleontologic data, especially the discovery of Globotruncana concavata (foraminifer) and an Inoceramus (I. sp. ex gr. muelleri) in the gray-blue upper Cretaceous limestones of Glandage-Creyers (Drome, French Prealps), indicate that the limestones are essentially Santonian, possibly extending upward into the lower Campanian. The underlying Gas conglomeratic complex is now assigned to the upper Turonian and, at the top, to the Coniacian. The Gas complex consists of two conglomerate layers separated by sandy limestones. Thus the so-called pre-Senonian orogeny apparently took place in at least two phases, one early Turonian (pre-Senonian), the other late Coniacian (early Senonian). The Coniacian, not the Turonian, is the major phase.
Etude tectonique et morphologique de la vallee du Loup, entre Le Foulon et Courmes (Alpes-Maritimes)
Authors: Rousset Claude 
Published: March 2020

Abstract
Between Le Foulon and Courmes (Alpes-Maritimes, southeast France) the Loup river flows south-southeast. On the east side of the river, imbricate structures overthrust to the southwest are cut by northeast-southwest-trending faults. The rocks of the west bank are folded but much simpler in structure. The highly fractured nature of the eastern part of the area is believed to be the result of overthrusting onto a topography of high relief. The morphology and evolution of the Loup valley are described, including successive phases of karst formation, glaciation, and renewed downcutting.
Decouverte d'une discordance de ravinement dans le complexe de base de l'Adrar mauritanien
Authors: Sougy Jean , Trompette Roland 
Published: March 2020

Abstract
The Paleozoic formations of the Adrar are divided into three parts, from base to top: the Agueni sandstone-quartzites, the Azougui shales, and the Foum Chor sandstones. Recognition of a strong erosional break between the middle and upper units permits definition of the Char group, including the lower and middle units which are between the major Precambrian unconformity and the discordance described here.
Observations geologiques en Sierra de Lujar (cordilleres Betiques internes, Espagne)
Authors: Boulin Jean , Dimpault Darcy Patrick , Leroy Henry 
Published: March 2020

Abstract
The Sierra de Lujar is composed of Triassic sedimentary rocks, mostly limestones and dolomites, in a reversed series. This unit seems to be the inverted flank of a recumbent fold of which the Lanjaron nappe is the normal flank, the fold being inclined toward the inner zones of the range. A lead deposit is associated with the carbonate rocks. It is of the stratiform type and appears to be related to a shoal zone that existed during the sedimentation of the ore host rock, and perhaps also to reworking and concentration of the latter, in which case it would be synsedimentary. These Triassic shoals, which have probably shifted somewhat, lie parallel to the northeast-southwest direction of the minor alpine (Cenozoic) folds that make up the Sierra. These minor folds are themselves parallel to the general alignment of the range.
Etude stratigraphique et tectonique des formations dolomitiques de la zone centrale de la chaine de l'Etoile, au nord de Marseille
Authors: Guieu Gerard 
Published: March 2020

Abstract
In the central zone of the Etoile range, north of Marseilles (southern France), a thick mass of dolomite (800 m), up to now considered upper Jurassic, actually comprises five formations: the Jurassic middle and upper Kimmeridgian and Portlandian, and the Cretaceous Valanginian and Hauterivian. The age of the formations has been determined on the basis of fossils (those not obliterated by dolomitization) and marker horizons, as well as by lateral tracing into well-dated units. Breccias and silicified horizons were examined. The Etoile dolomites were deposited in a basin of hypersedimentation bordered by thin limestone facies. A close analogy exists between the series studied in Etoile and correlative dolomitic sequences of the Marseilles region (in particular of Carpiagne and Sainte-Baume).
Contribution a l'etude du Quaternaire des Idjibitene et de la bordure meridionale de l'Adrar (El Gletat, Mauritanie)
Authors: Taieb Maurice 
Published: March 2020

Abstract
Two morphologically different regions are distinguished in the Quaternary of the Idjibitene mountains and along the southern border of the Adrar (El Gletat, Mauritania). Along the south and southwest border of the Adrar, deposits resulting from slope erosion are observed; to the south, dune structures and lake formations with white sands, brown sands, rare ferruginous crusts, and sand cemented by calcite (tarous) are seen. By observation of the terrain, collection of in place Acheulean industries, and study of the sands (granulometric and morphometric) it has been possible to reach an understanding of the stratigraphy. A chronology of Quaternary deposits of the Idjibitene is proposed. Close analogies with the Quaternary formations of Majabat are established.
Precisions sur le volcanisme acide dinantien a l'ouest de la butte Saint-Michel (region de Saint-Martin-des-Pres, Cotes-du-Nord)
Authors: Sagon Jean Paul 
Published: March 2020

Abstract
To the south of Saint-Martin-des-Pres (Cotes-du-Nord) [France], the author has discovered important acid volcanism, composed of rhyolites and potassic tuffs. The K &lt;sub&gt;2&lt;/sub&gt; O contents are very high, above 8 percent. These rocks were emplaced at the beginning of the Dinantian [Carboniferous] and are superposed on the 'dolerites of Bosmeleac.'
Quelques observations morphologiques et sedimentologiques effectuees a bord du bathyscaphe 'Archimede' au large des Maures et de l'Esterel
Authors: Bellaiche Gilbert , Pautot Guy 
Published: March 2020

Abstract
This submarine study constitutes a verification in place of data obtained from the surface by current oceanographic methods, such as bathymetric measurements, cores, and drag samples. It poses various problems, such as the origin of the adherence of mud to steeply inclined surfaces and the difficulty of interpreting morphologic sections.
A propos de l'age des calcaires senoniens mineralises de Tunisie septentrionale
Authors: Kujawski H. 
Published: March 2020

Abstract
Lead-zinc deposits occur in Tunisia in a Senonian limestone formerly assigned to the Campanian. The close of the Cretaceous is represented by two limestone units, however, one Campanian and the other Maestrichtian. Microfaunal evidence indicates that the commercially significant ores occur in the Maestrichtian limestone.
Phacopidella (Prephacopidella) hupei nov. sp., nouveau trilobite de l'Ordovicien du Finistere
Authors: Nion Joel , Henry Jean Louis 
Published: March 2020

Abstract
A new trilobite species discovered in Llandeilian shales of the Crozon peninsula is discussed; this species, at the present state of knowledge, is the oldest known representative of the subgenus Phacopidella (Prephacopidella), first described in 1963 by J. Destombes from the Ashgillian of the Anti-Atlas (Morocco) and up to now unknown in Brittany.
Chaines andines et chaines alpines; regard sur la geologie de la Cordillere des Andes au parallele de l'Argentine moyenne
Authors: Aubouin Jean , Borrello Angel V. 
Published: March 2020

Abstract
The tectonic evolution of the Andes was generally contemporaneous with the Alpine orogeny (Mesozoic-Tertiary). Pre-Andean tectonic cycles (Hercynian) involved Infracambrian and Paleozoic sediments. Comparison of the Andean cycle with the Alpine cycle shows a similar evolution in three major periods: a Mesozoic period characterized by strong compressional movements during which the thick sediments of the Chilean slopes were thrust over the relatively thin sediments of the Argentine slopes; an Eocene-Oligocene-Miocene period characterized by the deformation of terrigenous formations as a result of andesitic volcanism and reverse faulting; and a Plio-Quaternary period marked by basalt flows and the accumulation of thick terrigenous sediments in faulted, deformed basins. The absence of flysch deposits, ophiolites, major thrust sheets, and widespread metamorphism in the Andes, however, distinguishes them from the Alpine ranges. Thus, two main types of pericratonic mountain ranges (as opposed to intracratonic ranges) should be differentiated: precursory (or Andean) ranges developed on the periphery of continents but within their margins and geosynclinal (or Alpine) ranges part of which are extracratonic.
Etude des terrains eocenes et oligocenes du bassin liguro-piemontais dans la region de San Sebastiano Curone-Varzi (Apennin septentrional)
Authors: Labesse Bernard 
Published: March 2020

Abstract
The lower Tertiary formations of the Liguria-Piedmont basin (Italy) are characterized by epicontinental detrital deposits rich in clastic material. The biofacies generally have a littoral character. The general abundance of planktonic microfaunas suggests the existence of an open sea. Lower and middle Eocene sediments are absent in the area. The Oligocene was apparently affected by intense periods of erosion as indicated by local conglomeratic intervals. Variations in thickness of the Eocene-Oligocene section are related to submarine morphology and the hydrographic regime of the continent. Major tectonic disturbances occurred in the lower Miocene.
Collapse and Bending Analysis of Slotted Liners with Laboratory Tests and 3D FEM
Authors: Liu Xiaoda , Morita Nobuo 
Published: March 2020

Summary
The goal of this research is to study the structural integrity and slot width change of slotted liners by comparing them with a 3D finite element analysis and experimental study. Slotted liners are widely used because of their ability to ensure wellbore integrity and sand control. During installation and operations, the slotted liners must be strong enough to hold axial loads and radial compression to prevent excessive buckling and deformation of slots. Laboratory collapse and bending tests were conducted with commercially available slotted liners. Experiments were designed to select the grades of materials, diameter/thickness of pipes, and slot patterns. Finite element models were developed to predict the integrity of slotted liners and acceptable slot width changes. The study considered slotted liner design and analyzed how much material grades, casing/tubing dimension, and slot patterns affect the risk of slotted liner failure. The practical implications of this work to the oil fields are (1) a numerical simulation model can predict the closure of slots with reasonable accuracy if the work hardening stress-strain curve after elastic limit is accurately input; therefore, we may select the slotted liner design with sufficient stability after installation, and (2) the strength gains due to work hardening are significantly larger for a lower-grade base pipe than a higher-grade base pipe. Therefore, we need to re-evaluate using a lower-grade base pipe before using a thinner high-grade base pipe for some applications.
Near-Fracture Capillary End Effect on Shale-Gas and Water Production
Authors: Elputranto Riza , Yucel Akkutlu I. 
Published: March 2020

Summary
Capillary end effect (CEE) develops in tight gas and shale formations near hydraulic fractures during flowback of the fracturing-treatment water and extends into the natural-gas-production period. In this study, a new multiphase reservoir-flow-simulation model is used to understand the role the CEE plays on the removal of the water from the formation and on the gas production. The reservoir model has a matrix pore structure mainly consisting of a network of microfractures and cracks under stress. The model simulates high-resolution water/gas flow in this network with a capillary discontinuity at the hydraulic-fracture/matrix interface.
The simulation results show that the CEE causes significant formation damage during the production period by holding the water saturation near the fracture at higher levels than that using only the spontaneous imbibition of water. The effect makes water less mobile, or trapped, in the formation during the flowback, and tends to block gas flow during the production. The effect during the production is more important relative to the changing stress. We showed that the CEE cannot be removed completely but can be reduced significantly by controlling the production rate.
Antimicrobial resistance and novel mutations detected in the gyrA and parC genes of Pseudomonas aeruginosa strains isolated from companion dogs
Authors: Park Youjin , Oh Jaeyoung , Park Sowon , Sum Samuth , Song Wonkeun , Chae Jongchan , Park Hee-Myung 
Published: March 2020

Abstract
Background: Fluoroquinolone agents, such as enrofloxacin and marbofloxacin, are commonly used in for pseudomonal infection in veterinary medicine. However, the rate of resistance rate to fluoroquinolone s is rapidly increasing , according to multiple studies in various countries. The p P oint mutation s in the quinolone resistance - determining region (QRDR) is are closely related to the increased fluoroquinolone resistance of Pseudomonas aeruginosa . The aim of this study was to investigate current antimicrobial susceptibility and fluoroquinolone resistance in P. aeruginosa strains isolated from dogs. The presence of the point mutations in the QRDR was confirmed by gyrA and parC polymerase chain reaction and nucleotide sequencing analysis.

Results: A total of 84 nonduplicated P. aeruginosa strains were obtained from 228 healthy dogs (healthy group) and 260 dogs with clinical signs (infected group). From Of Among these isolates , 38 strains from the healthy group were detected in several sample type s, whereas 46 strains from the infected group were mostly obtained mostly from dogs’ ears with otitis externa (41/260, 15.8%). All strains were resistant to nalidixic acid, while some were also resistant to enrofloxacin (23/84, 27.4%), marbofloxacin (17/84, 20.2%), levofloxacin (12/84, 14.3%), or ciprofloxacin (11/84, 13.1%). Enrofloxacin resistance was significantly higher in strains from the infected group than in th ose at of from the healthy group ( p <0.05). Among the 23 fluoroquinolone-resistant strains, 8 and 4 different mutations were detected in the gyrA and parC genes, respectively. Mutations in gyrA were significantly common in the infected group ( p <0.05). Hotspots for the gyrA and parC mutations were Thr83 (34.8%, 8/23) and Pro116 (91.3%, 21/23), respectively. Double and triple mutations were also found in 5 of the strains.

Conclusion: Novel mutations in the gyrA and parC genes were first found in P. aeruginosa isolated from companion dogs in South Korea. These findings suggest that it is important to alert encourage the prudent use of fluoroquinolone antibiotics in canine pseudomona l s infection treatment.

Keywords: companion dogs, P. aeruginosa , novel mutations, gyrA , parC
Effect of luseogliflozin on bone microarchitecture in elderly patients with type 2 diabetes: Study protocol for a randomized controlled pilot trial using second-generation high-resolution peripheral quantitative computed tomography (HR-pQCT)
Authors: Haraguchi Ai , Shigeno Riyoko , Horie Ichiro , Morimoto Shimpei , Ito Ayako , Chiba Ko , Kawazoe Yurika , Tashiro Shigeki , Miyamoto Junya , Sato Shuntaro , Yamamoto Hiroshi , Osaki Makoto , Kawakami Atsushi , Abiru Norio 
Published: March 2020

Abstract
Background Elderly patients with type 2 diabetes mellitus (T2DM) have an increased risk of bone fracture independent of their bone mineral density (BMD), which is explained mainly by the deteriorated bone quality in T2DM compared to non-diabetic adults. Sodium-glucose co-transporter (SGLT) 2 inhibitors have been studied in several trials in T2DM, and the Canagliflozin Cardiovascular Assessment Study showed an increased fracture risk related to treatment with the SGLT2 inhibitor canagliflozin, although no evidence of increased fracture risk with treatment with other SGLT2 inhibitors has been reported. The mechanism of the difference in the fracture risk between the SGLT2 inhibitors is unknown, but the differences among the SGLT2 inhibitors in the selectivity of SGLT2 against SGLT1 may affect bone metabolism, since among the SGLT2 inhibitors the selectivity of canagliflozin is lowest. We will investigate whether the SGLT2 inhibitor luseogliflozin, which has higher SGLT2 selectivity, affects bone metabolism by using high-resolution peripheral quantitative computed tomography (HR-pQCT) which provides direct in vivo morphometric information about the bone microarchitecture. Methods This is a single-center, randomized, open-label, active-controlled, parallel pilot trial. Eligible participants are elderly (age ≥60 years) individuals with T2DM with HbA1c levels at 7.0%–8.9%. A total of 24 participants will be allocated to either the luseogliflozin group (taking luseogliflozin) or control group (taking metformin) in a 1:1 ratio to compare the groups' changes in bone microarchitecture of radius and tibia which are analyzed by HR-pQCT before and 48 weeks after the administration of each medication. The laboratory data associated with glycemic control and bone metabolism will be collected every 12 weeks during the study. Recruitment began in June 2019. Discussion The reason we use metformin as an active control is to avoid yielding differences in glycemic control between the luseogliflozin and control groups. Besides, metformin is considered to have neutral effect on bone. This trial will reveal the effect of luseogliflozin on bone metabolism in elderly patients with T2DM.
Burnout level and associated factors in a Sub-Saharan African medical setting: prospective cross-sectional survey.
Authors: MACKANGA Jean-Rodolphe , MOULOUNGUI Emeline Gracia MOUENDOU , IBA-BA Josaphat , POTTIER Pierre , KOMBILA Jean-Baptiste MOUSSAVOU , BOGUIKOUMA Jean Bruno 
Published: March 2020

Abstract
Background: burnout in the hospital environment is a problem that affects care and training. Often explored in the high-income medical context, burnout is poorly studied in low and middle-income countries characterized by a precarious hospital situation and a high stake linked to the Millennium Development Goals. The aim of our study was to determine in medical practitioners, in a sub-Saharan African country’s medical context, the burnout level and associated factors.
Methods: a prospective cross-sectional study by using a self-administered Likert-scale questionnaire addressed to doctors and doctoral medical students in Gabon. Maslach Burnout Inventory scale has been used. Burnout symptoms were defined by high level in at least one of the 3 dimensions. Severe burnout defined by high level in all dimensions. Explored factors: socio-demographic and psychometric. Multiple logistic regression has been performed.
Results: among 104 participants, severe burnout prevailed at 1.9% (95% CI: 0.2% -6.8%) and burnout symptoms at 34.6% (95% CI: 25, 6% -44.6%). The associated factors with burnout symptoms: age (OR = 0.86, p = 0.004), clinical activity in a university hospital center (OR = 5.19, p = 0.006), the easy access to the hospital (OR = 0.59, p = 0.012), number of elderly dependents living with the practitioner (OR = 0.54, p = 0.012), to live in the borough where the hospital is located (OR = 0.24, p = 0.039) and to be favorable to traditional medicine (OR = 1.82, p = 0.087). Nagelkerke’s R-squared:53.1%.
Conclusion: in Gabon, middle-income country, almost one practitioner in two has burnout symptoms. The young age, the university hospital center, the difficulty to access to hospital and to live in the borough where the hospital is located increase the probability of burnout symptoms. These results must put question to relevant authorities regarding health and medical education, to set up: a public transport for practitioners, an optimal primary health care system, a regulation of medical tasks in hospitals, a training in clinical supervision.