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Multidrug-Resistant of Escherichia coli and Salmonella spp. strains in Chicken Feces Intended for Consumption in Open Spaces of Ouagadougou, Burkina Faso

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Open Journal of Applied Sciences 2024年第4期14卷 881-892页

作者： stéphanie Lynseh Carine Sita Bénao Dabiré Amana Métuor Abdoul Karim Ouattara Rahimatou Yasmine Wendkouni Tiemtoré Nicolas Ouédraogo Blandine Ouédraogo Rhaina Olivia Badini Lionel Eliada Benoit Bambara Serge Sougué Jacques Simporé Biomolecular and Genetic Laboratory (LABIOGENE) Pietro Annigoni Biomolecular Research Center (CERBA) Department of Biochemistry-Microbiology University Joseph Ki-Zerbo Ouagadougou Burkina Faso Department of Biochemistry-Microbiology University of D&#233dougou D&#233dougou Burkina Faso National Malaria Research and Training Centre (CNRFP) Ouagadougou Burkina Faso

Resistant bacteria can be transmitted to humans through feces or contaminated meat from local chickens. Bacterial strains were isolated from the intestinal contents of 400 local chicken samples from various sales sites. These strains were then characterized using bacteriological and biochemical methods to identify resistant strains. In a study conducted in Ouagadougou, we systematically collected chicken fecal samples from 20 locations across the city, followed by isolation and identification of Salmonella spp. using specific enrichment and culture methods, as well as Escherichia coli. Bacterial strains were characterized using antibiotic resistance profiles were determined through agar diffusion tests, revealing sensitivity or resistance to a range of antibiotics based on established scientific criteria. The results showed that out of the 400 samples collected, 81.25% and 63.5% were contaminated by Escherichia coli and Salmonella spp., respectively. Among these, 86.15% of identified Escherichia coli and 50.78% of Salmonella spp. displayed resistance to at least one tested antibiotic. Among 280 Escherichia coli isolates identified resistant to at least one antibiotic, 31.07% were resistant to cefotaxime (CTX), 20.35% to ceftazidime (CAZ), 21.07% to ceftriaxone (CTR), 75% to amoxicillin clavulanic acid (AMC), 23.57% aztreoname (ATM) and 27.14% were resistant to imipenem (IMP). In the case of the 129 Salmonella spp. isolates resistant to at least one tested antibiotic, 34.88% were resistant to CTX;41.08% to CAZ;35.65% to CTR, 92% to AMC, 39.53% to ATM and finally 47.28% were resistant to IMP. Our study revealed high prevalence of resistance in bacterial strains isolated from local chickens sold outdoors in Ouagadougou. These findings raise significant public health concerns, due to the possible transmission of these resistant strains to humans through the consumption of contaminated meat, thus complicating the treatment of bacterial infections.

关键词： Multidrug-Resistant Chicken Ouagadougou Escherichia coli Salmonella spp. Antibiotic

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Geophysical evidence of large-scale silica-rich fluid flow above the continental subduction interface

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Science China Earth Sciences 2024年第9期67卷 2796-2809页

作者： Yuantong MAO Liang ZHAO Marco G.MALUSA stefano SOLARINO Silvia PONDRELLI Baolu SUN Coralie AUBERT Simone SALIMBENI Elena EVA stéphane GUILLOT state Key Laboratory of Lithospheric and Environmental Coevolution Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China Department of Earth and Environmental Sciences University of Milano-BicoccaMilan 20126Italy Istituto Nazionale di Geofisica e Vulcanologia Osservatorio Nazionale TerremotiGenova 16145Italy Istituto Nazionale di Geofisica e Vulcanologia Sezione di BolognaBologna 40127Italy Université Grenoble Alpes Université Savoie Mont BlancCNRSIRDUGEISTerreGrenoble 38000France

Fluids in subduction zones can have major effects on subduction ***,geophysical constraints on the scale and impact of fluid flow during continental subduction are still *** we analyze the VP/VS ratios in the Western Alpine region,hosting one of the best-preserved fossil continental subduction zones worldwide,to investigate the impact of fluid flow during continental *** found a belt of high VP/VS ratios>1.9 on the upper-plate side of the subduction zone,consistent with a partially serpentinized upper-plate mantle,and a belt of unusually low VP/VS ratiosst fluid flow along the continental subduction *** results suggest that past fluid flow may have reduced the effective stress along the subduction interface thus favoring continental subduction.

关键词： Western Alps Crustal structure Receiver function Vp/Vs ratio Silica enrichment

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3D finite element analysis of a two-surface wear model in fretting tests

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摩擦:英文版 2023年第12期11卷 2278-2296页

作者： stéphanie BASSEVILLE Djamel MISSOUM-BENZIANE Georges CAILLETAUD Universitéde Versailles Saint-Quentin Versailles 78000France MINES Paristech PSL Research UniversityMATCentre des MatériauxCNRS UMR 7633Evry Cedex BP 8791003France

This article aims at developing a computationally efficient framework to simulate the erosion of two contact surfaces in three-dimensional(3D),depending on the body *** framework involves finite element(FE)resolution of a fretting problem,wear computation via a non-local criterion including a wear distribution parameter(WDP),as well as updating of the geometry and automatic *** originality is based on the capability to capture the damage on each surface and obtain local and global results for a quantitative and qualitative *** simulations are carried out for two 3D contact specimens with different values of *** results highlight the importance of correctly modelling wear:One-surface wear model is sufficient from a global point of view(wear volume),or whenever the wear resistance for a body is much higher than that of another one,whereas a 3D two-surface wear model is essential to capturing local effects(contact pressure,wear footprint,etc.)related to the difference in wear resistance of the bodies.

关键词： three-dimensional(3D)finite element(FE)simulations fretting two-surface wear model titanium alloys

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Spatial Analysis of structural Changes and Floristic Distribution of Forest Landscapes in the Centre-West Region of Burkina Faso

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Journal of Geoscience and Environment Protection 2024年第9期12卷 246-268页

作者： stéphane Koudougou Oumar Kaboré Space and Society Dynamics Laboratory Université Joseph KI-ZERBO Ouagadougou Burkina Faso National Center for Scientific and Technological Research/Institute for Environment and Agricultural Research (CNRst/INERA) Space and Society Dynamics Laboratory of Université Joseph Ki-Zerbo Ouagadougou Burkina Faso

Land use and occupation dynamics impact landscape structure, diversity, richness and balance of vegetation cover. The aim of this study is to describe the process of fragmentation of the forest landscape from 1990 to 2020 and its effects on the degradation of the floristic characteristics of the vegetation in the Central West region of Burkina Faso. To achieve this, satellite data were collected and processed as part of a mapping approach to describing the landscape and the different types of landscape fragmentation. Mapping indices of landscape fragmentation (relative richness, change process, patch zones, Shannon diversity index) were also calculated. These indices were programmed in Idrisi Selva’s Landscape Pattern and change process analysis module. Spatio-temporal analysis revealed that in 1990, the landscape was dominated by natural vegetation formations, covering 66.33% of the territory. By 2020, these had been degraded to 44.80% by farmlands. The mapping analysis of indices also showed that the study area is characterized by four types of landscape fragmentation, including attrition, aggregation, creation and dissection. We also observed an abundant homogeneity, diversity and richness of conservation areas with legal and land tenure status. However, the structure is heterogeneous in landscapes outside protected areas and in areas under human occupation. This shows the crucial role played by conservation areas in preserving and balancing the diversity of vegetative cover in the study area.

关键词： Change Process Fragmentation Remote Sensing Landscape Burkina Faso

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Orbits of Real Semisimple Lie Groups on Real Loci of Complex Symmetric Spaces

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Acta Mathematica Sinica,English Series 2018年第3期34卷 439-453页

作者： stéphanie CUPIT-FOUTOU Dmitry A.TIMASHEV Ruhr-Universitat Bochum Fakultat fiir Mathematik D-44780 Bochum Germany Lomonosov Moscow state University Faculty of Mechanics and Mathematics Department of Higher Algebra 119991 Moscow Russia

Let G be a complex semisimple algebraic group and X be a complex symmetric homogeneous G-variety. Assume that both G, X as well as the G-action on X are defined over real *** G（R） acts on X（R） with finitely many orbits. We describe these orbits in combinatorial terms using Galois cohomology, thus providing a patch to a result of Borel and Ji.

关键词： Semisimple group symmetric space real point orbit Galois cohomology

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Enlarged and uncommon indications for ALPPS-where do we stand?

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Hepatobiliary Surgery and Nutrition 2022年第5期11卷 743-745页

作者： stéphanie Truant Department of Digestive Surgery and Transplantation CHU LilleUniv.LilleLilleFrance CANTHER Laboratory“Cancer Heterogeneity Plasticity and Resistance to Therapies”UMR-S1277Team“MucinsCancer and Drug Resistance”LilleFrance

Associating liver partition and portal vein ligation for staged hepatectomy(ALPPS)has been introduced in 2012 as an innovative surgical option that offers patients curative resection in otherwise nonresectable *** the high morbi-mortality rates and poor oncologic outcome in the early experience,indications of ALPPS have been restricted to young patients with colorectal liver metastases(CRLM)following the first report on the international ALPPS registry(1).ALPPS further gained in safety after the first International ALPPS Meeting held in 2015(2)in Hamburg,which prompted surgeons to better patient selection by chemotherapy(3),technical refinements toward less invasive ALPPS procedures(4),and better inter-stage decision making(5).

关键词： ALPPS indications mortality

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Parallelization of frequency domain quantum gates:manipulation and distribution of frequency-entangled photon pairs generated by a 21 GHz silicon microresonator

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Advanced Photonics 2024年第3期6卷 60-69页

作者： Antoine Henry Dario A.Fioretto Lorenzo M.Procopio stéphane Monfray Frédéric Boeuf Laurent Vivien Eric Cassan Carlos Alonzo-Ramos Kamel Bencheikh Isabelle Zaquine Nadia Belabas Institut Polytechnique de Paris LTCI Université Paris-Saclay CNRS Centre for Nanosciences and Nanotechnology Weizmann Institute of Science stMicroelectronics SAS

Harnessing the frequency dimension in integrated photonics offers key advantages in terms of scalability, noise resilience, parallelization, and compatibility with telecom multiplexing *** ring resonators have been used to generate frequency-entangled states through spontaneous four-wave mixing. However, state-of-the-art integrated resonators are limited by trade-offs among size,spectral separation, and efficient photon pair generation. We have developed silicon ring resonators with a footprint below 0.05 mm2providing more than 70 frequency channels separated by 21 GHz. We exploit the narrow frequency separation to parallelize and independently control 34 single qubit-gates with a single set of three off-the-shelf electro-optic devices. We fully characterize 17 frequency-bin maximally entangled qubit pairs by performing quantum state tomography. We demonstrate for the first time, we believe, a fully connected five-user quantum network in the frequency domain. These results are a step towards a generation of quantum circuits implemented with scalable silicon photonics technology, for applications in quantum computing and secure communications.

关键词： frequency domain integrated photonics quantum gates quantum networks

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Combining motor learning and brain stimulation to enhance post-stroke neurorehabilitation

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Neural Regeneration Research 2015年第8期10卷 1218-1220页

作者： Yves Vandermeeren stéphanie Lefebvre Université catholique de Louvain CHU Dinant-Godinne UcL Namur Neurology Department Université catholique de Louvain (UcL) Institute of Neuro Science (IoNS) Université catholique de Louvain Louvain Bionics UcL Louvain-la-Neuve Belgium

Worldwide,stroke is a leading cause of life-long disability resulting in dramatic restrictions in patient’s independence and in a growing economic burden for the *** majority of stroke survivors suffers from chronic sequels among which hemiparesis is one of the most *** quick progresses over the last 20 years,the impact of neurorehabilitation on post-stroke recovery remains unsatisfactory.

关键词： disability stimulation independence skill retention burden dramatic hemisphere suffers likely

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A primer on model selection using the Akaike Information Criterion

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Infectious Disease Modelling 2020年第1期5卷 111-128页

作者： stéphanie Portet Department of Mathematics University of ManitobaWinnipegManitobaR3T 2N2Canada

A powerful investigative tool in biology is to consider not a single mathematical model but a collection of models designed to explore different working hypotheses and select the best model in that *** these lecture notes,the usual workflow of the use of mathematical models to investigate a biological problem is described and the use of a collection of model is *** depend on parameters that must be estimated using observations;and when a collection of models is considered,the best model has then to be identified based on available ***,model calibration and selection,which are intrinsically linked,are essential steps of the ***,some procedures for model calibration and a criterion,the Akaike Information Criterion,of model selection based on experimental data are *** derivation,practical technique of computation and use of this criterion are detailed.

关键词： Collection of models Model calibration Model selection Akaike information criterion

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Neurocognitive Profile of People Living with Human Immunodeficiency Virus Initiating Treatment in Kinshasa in the Dolutegravir Era, Democratic Republic of Congo

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Neuroscience & Medicine 2024年第1期15卷 1-22页

作者： Candide About Kabamba Berry Ikolango Bongenya Jocelyn Ewuti Nonga Lambert Omombo Losenga Noëlla Maketi Dikati Thérèse Kasaka Ntumba Grace Ipaya Booto Rosalie Djamba Dembo stéphanie Mauwa Selenge Benoit Obel Kabengele Guy Makila Mabe Bumoko Marie-Thérèse Ayane Safi Sombo Erick Ntambwe Kamangu Department of Neurology Faculty of Medicine University of Kinshasa Kinshasa Democratic Republic of Congo Faculty of Medicine Bel Campus Technological University Kinshasa Democratic Republic of Congo “Focus HIV/AIDS” Research Group Kinshasa Democratic Republic of Congo Department of Internal Medicine University Clinic of Kinshasa Kinshasa Democratic Republic of Congo Molecular Biochemistry Department Department of Basic Sciences Faculty of Medicine University of Kinshasa Kinshasa Democratic Republic of Congo

Context: Antiretroviral therapies improve the prognosis of NeuroAIDS contrasting with a high frequency of Minor Neurocognitive Disorders (MND) even in aviremic subjects. Objective: The objective of this study is to present the neurological and cognitive profile of People Living with HIV (PLHIV) initiating antiretroviral treatment in Kinshasa in the era of Dolutegravir (DTG). Methods: This is a multicenter, cross-sectional study with a descriptive aim carried out in 16 HIV Outpatient Treatment Centers (OTC) in Kinshasa from October 4, 2021 to February 15, 2022. The International HIV Dementia Scale (IHDS) correlated with the Activities of Daily Living (IADL) scale facilitated the categorization of NeuroCognitive Disorders (NCD) of PLHIV evaluated after carrying out a summary neurological examination. Results: Of the 96 patients recruited, 56.3% were women with a sex ratio of 0.68. The average age was 40.1 ± 12.1 years. The secondary education level was the majority at 64.6%. Malaria (44.8%) and tuberculosis (32.3%) were more common as opportunistic infections. They were alcoholics in (30.2%). Their history was heart disease (15.6%), high blood pressure (18.8%);drug abuse (10.4%). The IHDS score was light in 55.2% of cases. The correlation between IHDS/IADL watches asymptomatic neurocognitive impairments (ANI) in 77.1%, almost all of subjects are found with normal overall functioning (94.8%) and a disturbed neurological examination in 53.1% of cases with a predominance of motor impairments in 79.1%. Conclusion: In view of these results, early and systematic screening of NCD and associated factors remains necessary in our context. .

关键词： IHDS Dolutegravir Initiation Kinshasa Neurological Profile PLHIV

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