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Epidemiological and Diagnostic Profile of Patients with Chronic Hepatitis B Virus from 2017 to 2021 in Parakou, Republic of Benin

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Advances in Infectious Diseases 2024年第1期14卷 147-161页

作者： Khadidjatou Saké Cossi Angelo Attinsounon Aboudou Raϊmi Kpossou Morayo Omm Ani Salami Astrid Alexandrine Hountondji Kofi-Mensa Savi de Tovè rhonel ahanhanzo-glèlè Kpémahoun René Kèkè Sossa Edmond Gbédo Jean Sehonou Nicolas Kodjoh Department of Medicine and Medical Specialties Faculty of Medicine University of Parakou Parakou Benin Department of Medicine and Medical Specialties Faculty of Health Sciences University of Abomey-Calavi Cotonou Benin Health Program to Fight AIDS Cotonou Benin National Program for the Control of Hepatitis Cotonou Benin

Introduction: Viral hepatitis B is a public health problem worldwide. The objective of this study was to determine the epidemiological and diagnostic profile of chronic carriers of hepatitis B virus seen for gastroenterology consultations in Parakou, Republic of Benin. Patients and Methods: This was a cross-sectional and descriptive study with retrospective data collection. Patients seen for gastroenterology consultations from January 1, 2017 to June 30, 2021 at the Regional Teaching Hospital of Borgou/Alibori (CHUD-B/A) and having been diagnosed as chronic carriers of hepatitis B virus were included. A minimum initial assessment was required to be included. The minimum sample size was calculated with Schwartz formula. The variable of interest was the detection of HBsAg twice and at least 6 months apart. The other variables studied were sociodemographic, clinical and paraclinical data. The data collected were analyzed using SPSS 17 software. Results: A total of 2786 patients were seen for gastroenterology consultations, including 1126 (40.4%) HBsAg-positive patients. Among them, 417 patients met the inclusion criteria and were the subject of the present study. The average age of the patients was 34.8 ± 10.5 years. Two hundred and forty-seven patients (65.7%) were male, representing a sex ratio of 1.9. The discovery of positive HBsAg status was made during systematic screening in 231 patients (55.4%). Scarifications were noted in 373 patients (89.4%). Asthenia was reported in 184 patients (44.1%). Co-infections with human immunodeficiency virus, hepatitis C and D viruses were 0% (0 in 92), 2.8% (4 in 146) and 14.3% (2 in 146), respectively. During the initial assessment, 274 patients (65.7%) were sero-negative for chronic HBeAg infection, 21 (5%) had clinically significant fibrosis including 16 (3.8%) at the stage of cirrhosis and 7 patients (5.4%) had hepatocellular carcinoma. Conclusion: In Parakou, chronic hepatitis B virus infection is common and affects young pe

关键词： Chronic Infection HBV Epidemiology Diagnosis Parakou

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Prevalence and Factors Associated with HIV Serodiscordance among Infected Couples in the City of Parakou (Benin)

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Open Journal of Internal Medicine 2023年第4期13卷 351-363页

作者： Sègnon Eurydice Elvire Djossou Charles Sossa Georgia Barikissou Damien rhonel ahanhanzo-glèlè Ignace Tokpanoudé Gottfried Agballa Ariano Vigniavo Nouatin Ireti Nethania Elie Ataïgba Eric Dettin Badirou Aguemon Public Health Unit of the Faculty of Health Sciences (FHS) University of Abomey-Calavi (UAC) Cotonou Benin Comlan Alfred Quenum Regional Institute of Public Health University of Abomey-Calavi (UAC) Ouidah Bénin Regional Center for Prospective Information and Advice on HIV and STD of Borgou/Alibori Parakou Bénin Institute of Nursing and Obstetrics Training University of Parakou School of Medicine Parakou Bénin Department of Psychiatry Departmental University Hospital of Borgou and Alibori Parakou Bénin Internal Medicine Department Armed Forces Training Hospital—University Hospital Parakou Bénin

Introduction: Achieving the goal of “zero new human immunodeficiency virus (HIV) infections by 2030” requires the elimination of HIV transmission within serodiscordant couples. In Benin, the phenomenon of HIV serodiscordance remains poorly documented. Objective: the aim of this study was to determine the prevalence of HIV serodiscordance and its associated factors among infected couples in the city of Parakou. Study Framework and Method: This was a descriptive cross-sectional study with an analytical focusing on qualitative and quantitative plans. It was carried out on thirty approved sites in the city of Parakou between July and December 2022. We used a non-exhaustive convenience sample of people living with HIV (PlHIV) whose partner’s status was known. Data collection took place in two phases: an interview phase during which sociodemographic, economic, behavioral and marital/social data were collected. The second phase focused on clinical and therapeutic data which were collected from the patients’ personal records. Results: A total of 417 study subjects were recruited. The average age (SD) of the subjects was 38.17 (±10.25) years [37.19 - 39.16]. Females accounted for the largest proportion (79.62%). Most respondents (74.11%) were married. Monogamous unions were the most frequent, involving 67.87% of participants, most of whom (44.60%) had been infected for between 1 and 5 years. Couples in union for less than 10 years were the most numerous (218 people or 52.28%). The respondent was head of household among only 140 respondents (33.57%) of which 84 men (60.00%) and 56 women (40.00%). Female heads of household were mainly divorcees and widows. Around 75% of PlHIV had monthly incomes of less than 50,000F CFA (81.16 USD). Prevalence of HIV serodiscordance was 71.70%. It was 70.91% [65.54% - 76.28%] at care sites and 73.24% [65.95% - 80.52%] at sites involved in preventing mother-to-child transmission (PMTCT sites). Potential predictors of HIV serodiscordance were: h

关键词： Serodiscordance HIV Prevalence Associated Factors Benin

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Exploring the Factors Associated with 12-Month Non-Return to Work among Motorcyclists Involved in Road Accidents

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Open Journal of Preventive Medicine 2024年第1期14卷 1-16页

作者： Yolaine glèlè-ahanhanzo Donatien Daddah Alphonse Kpozehouen Bella Hounkpè Dos Santos Moussiliou N. Paraiso Multidisciplinary Research Unity for Road Crashes Prevention (ReMPARt) Department of Epidemiology and Bio-Statistics Regional Institute of Public Health University of Abomey-Calavi Ouidah Benin Regional Direction of Health Lokossa Benin Regional Direction of Health Abomey-Calavi Benin Health Promotion Department Regional Institute of Public Health Ouidah Benin

Introduction: Motorcyclists bear a disproportionate burden of morbidity and mortality from road accidents. In addition, the consequences of these accidents affect the ability of victims to return to work. This study aimed to determine the prevalence and factors associated with non-return to work among surviving motorcyclists involved in road accidents 12 months after the event. Materials and Methods: It was a cross-sectional study conducted using data from a cohort of motorcyclists involved in accidents and recruited in five hospitals in Benin from July 2019 to January 2020. The dependent variable was non-return to work 12 months after the accident (yes vs no). The independent variables were categorized into two groups: baseline and 12-month follow-up variables. logistic regression was used to determine the factors associated with non-return to work at 12 months among the participants. Results: Among the 362 participants, 55 (15.19%, 95% CI = 11.84 - 19.29) had not returned to work 12 months after the accident. Risk factors for non-return to work identified were: smoking (aOR = 4.41, 95% CI = 1.44 - 13.56, p = 0.010), hospitalization (aOR = 2.87, 95% CI = 1.14 - 7.24, p Conclusion: The prevalence of non-return to work at 12 months was high among surviving motorcyclists involved in road accidents in Benin. Integrated support for patients based on identified risk factors should effectively improve their return to work.

关键词： Road Accident Return to Work Motorcyclists Hospital Mental Health Cohort Benin

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Prevalence and Factors Associated with Sharing of Human Immunodeficiency Seropositivity Status among Serodiscordant Couples in the City of Parakou (Benin)

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Open Journal of Epidemiology 2024年第1期14卷 1-18页

作者： Djossou Sègnon Eurydice Elvire Damien Georgia Barikissou Meba Bio Mamatou Tokpanoude Ignace ahanhanzo-glele rhonel Ataigba Iretinethania Elie Agossoukpe Benoit Kakpo-Zannou Rodrigue Kamoutchoni Corneille Aguemon Badirou Unité de santé publique de la Faculté des Sciences de la santé (FSS) Universitéd’Abomey-Calavi (UAC) Cotonou Bénin Association des Médecins Communautaires de Bénin (AMCB) Parakou Bénin Association Béninoise pour la Promotion de la Famille (ABPF) Parakou Bénin Centre d’Information de Prospective d’Ecoute et de Conseil sur les IST/VIH/Sida du Borgou et de l’Alibori (CIPEC/B-A) Parakou Bénin Institut de Formation enSoinsInfirmiers et Obstétricaux (IFSIO) Faculté de Médecine (FMP) Parakou Bénin Service de Psychiatrie Centre HospitalierUniversitaireDépartemental du BorgouAlibori (CHUD/B-A) Parakou Bénin Service de Médecine Interne H&#244pital Saint-Jean de Dieu de Boko N’Dali Bénin

Introduction: In serodiscordant couples, sharing serostatus is a crucial step in the HIV risk management process. The aim of this study was to determine the prevalence and factors associated with serostatus sharing among HIV serodiscordant couples in the city of Parakou. Setting and methods: This study was carried out in the city of Parakou, capital of northern Benin. It was a descriptive, analytical cross-sectional study with non-probability sampling for convenience. Socio-demographic data, as well as data on antecedents, behaviours, social and marital life, were collected using a questionnaire gave to the participants. Clinical and therapeutic data were collected from patients’ medical records and follow-up charts. Data were analyzed and processed using R 4.3.1 software. The significance level was set at 5%, and logistic regression was used to identify potential predictors of shared serostatus among serodiscordant couples in the city of Parakou in 2022. Results: A total of 299 participants in long-term serodiscordant relationships were included in our study. The average age of the subjects was 37.55 ± 10.25 years. Women were the infected partner in 80.27% of cases. The most common level of education was secondary (33.45%). Most respondents (230 subjects, 76.92%) were married. The average duration of the couple’s relationship was 121.68 months ± 96.32. The most frequent screening circumstances were: Prevention of mother-to-child transmission (PMTCT) (50.84%) and hospital screening (26.09%). The infected partner shared his or her serostatus with his or her spouse in 47.83% of cases. Potential predictors of serostatus sharing within the couple were: marital status (p Conclusion: The sharing of serostatus within serodiscordant couples needs to be managed in a way that takes into account the social and marital characteristics of the couple.

关键词： Serodiscordance Sharing of Serostatus HIV Partner Benin

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Prediction and control of cholera outbreak:Study case of

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Infectious Disease Modelling 2024年第3期9卷 892-925页

作者： C.Hameni Nkwayep R.glèlèKakaï S.Bowong laboratory of Mathematics Department of Mathematics and Computer ScienceUniversity of DoualaPO Box 24157DoualaCameroon IRD Sorbonne UniversityUMMISCOF-93143BondyFrance Biomathematics and Forest Modeling University of Abomey-CalaviCalaviBenin

This paper deals with the problem of the prediction and control of cholera outbreak using real data of *** first develop and analyze a deterministic model with seasonality for the cholera,the novelty of which lies in the incorporation of undetected *** present the basic properties of the model and compute two explicit threshold parametersR_(0)and R_(0).that bound the effective reproduction number,from below and above,that is R_(0)≤R_(0)≤R_(0).We prove that cholera tends to disappear whenR_(0)≤1,while when R_(0)>1,cholera persists uniformly within the ***,assuming that the cholera transmission rates and the proportions of newly symptomatic are unknown,we develop the EnKf approach to estimate unmeasurable state variables and these unknown parameters using real data of cholera from 2014 to 2022 in *** use this result to estimate the upper and lower bound of the effective reproduction number and reconstructed active asymptomatic and symptomatic cholera cases in Cameroon,and give a short-term forecasts of cholera in Cameroon until *** simulations show that(i)the transmission rate from free Vibrio cholerae in the environment is more important than the human transmission and begin to be high few week after May and in October,(ii)90%of newly cholera infected cases that present the symptoms of cholera are not diagnosed and(iii)60.36%of asymptomatic are detected at 14%and 86%of them recover *** future trends reveals that an outbreak appeared from July to November 2023 with the number of cases reported monthly peaked in October *** impulsive control strategy is incorporated in the model with the aim to avoid or prevent the cholera *** the first year of monitoring,we observed a reduction of more than 75%of incidences and the disappearance of the peaks when no control are available in Cameroon.A second monitoring of control led to a further reduction of around 60%of incidences the following year,showing how

关键词： Vibrio cholerae Mathematical models Ensemble Kalman filterBasic reproduction number Impulsive control

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Optimizing building retrofit through data analytics:A study of multi-objective optimization and surrogate models derived from energy performance certificates

Energy and Built Environment

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Energy and Built Environment 2024年第6期5卷 889-899页

作者： G.R.Araújo Ricardo Gomes Paulo Ferrão M.glória Gomes IN+ DEMTécnico LisboaUniversidade de lisboaAv Rovisco PaisLisboa1049-001Portugal CERIS DECivilTécnico LisboaUniversidade de LisboaAv Rovisco PaisLisboa1049-001Portugal

The building stock is responsible for a large share of global energy consumption and greenhouse gas emissions,therefore,it is critical to promote building retrofit to achieve the proposed carbon and energy neutrality *** of the policies implemented in recent years was the Energy Performance Certificate(EPC)policy,which proposes building stock benchmarking to identify buildings that require ***,research shows that these mechanisms fail to engage stakeholders in the retrofit process because it is widely seen as a mandatory and complex *** study makes use of an EPC database to integrate machine learning techniques with multi-objective optimization and develop an interface capable of(1)predicting a building’s,or household’s,energy needs;and(2)providing the user with optimum retrofit solutions,costs,and return on *** goal is to provide an open-source,easy-to-use interface that guides the user in the building retrofit *** energy and EPC prediction models show a coefficient of determination(R2)of 0.84 and 0.79,and the optimization results for one case study EPC with a 2000€budget limit inÉvora,Portugal,show decreases of up to 60%in energy needs and return on investments of up to 7 in 3 years.

关键词： Building energy performance Building optimization Multi-Objective surrogate models Building retrofitting

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Removal of endocrine disrupting chemicals from water through urethane functionalization of microfiltration membranes via electron beam irradiation

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Frontiers of Environmental Science & Engineering 2024年第4期18卷 61-74页

作者： Zahra Niavarani Daniel Breite Muhammad Yasir Vladimir Sedlarik Andrea Prager Nadja Schönherr Bernd Abel Roger gläser Agnes Schulze leibniz Institute of Surface Engineering eV.(IOM) Permoserstrasse 1504318 LeipzigGermany Centre of Polymer Systems University InstituteTomas Bata University in ZlinTrida Tomase Bati 567876001 ZlinCzech Republic Institute of Chemical Technology Leipzig UniversityLinnestrasse 304103 LeipzigGermany

Polyethersulphone(PES)membranes modified with urethane functional groups were prepared through an interfacial reaction using electron beam *** removal of eight endocrine disrupting chemicals(EDCs)was studied using both pristine and functionalized PES *** prepared membranes underwent characterization using several techniques,including attenuated total reflectance-Fourier transform infrared(ATR-FTIR)spectroscopy,scanning electron microscopy,contact angle analysis,and measurements of pure water ***,dynamic adsorption experiments were conducted to evaluate the adsorption mechanism of the prepared membrane toward the eight *** urethane functionalized membranes were hydrophilic(52°contact angle)and maintained a high permeate flux(26000 l/h m^(2) bar)throughout the filtration *** adsorption results demonstrated that the introduction of urethane functional groups on the membranes significantly enhanced the removal efficiency of 17β-estradiol,estriol,bisphenol A,estrone,ethinylestradiol,and *** adsorption loading of 17β-estradiol on the functionalized PES membrane was 6.7±0.7 mg/m^(2),exhibiting a 5-fold increase compared to the unmodified PES *** membranes were successfully regenerated and reused for three adsorption cycles without experiencing any loss of adsorption capacity.

关键词： Surface functionalization Electron beam irradiation Microfiltration Endocrine disrupting chemicals

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Implementation of the Acclimatization Process for Ginger Plantlets (Zingiber officinale Roscoe)

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Open Journal of Applied Sciences 2024年第8期14卷 2236-2248页

作者： Florentin Danton Kango Gilles Habib Todjro Cacaï Serge Sètondji Houédjissin Jerome Anani Hounguè Jaures Riwan Uriel Kouke David Dègbé Allotchémè Corneille ahanhanzo Central laboratory of Plant Biotechnology and Plant Breeding Department of Genetic and Biotechnology Faculty of Science and Technology University of Abomey-Calavi Cotonou Benin

Ginger (Zingiber officinale Roscoe) is an important culinary and medicinal spice but is rarely cultivated due to the unavailability of seeds. Given the difficulties in adapting to plantlets produced in natural environments, it is important to analyze the survival conditions of ginger plantlets. For this reason, we varied the incubation temperature and humidity as well as the substrate during the weaning phase. Then, we varied the nutrients contained in the watering solution during the hardening phase. The statistical analysis showed that physical factors and substrates significantly influenced (p lantlet survival. Nutrient solutions significantly influenced the phylogenesis, rhizogenesis, and height growth of the plantlets. The suitable physical factors for good development of plantlets are a temperature of 26.54˚C and a humidity of 96.16%. The 1C2T2TC substrate (1 Compost + 2 Soil + 2 Coconut Peat) had a significant survival rate of approximately 92.5%. During hardening, the Plantzym solution promoted good growth in terms of plantlet height (0.6 cm) and good development of roots (30 roots) and leaves (03 leaves). This work will make it possible to develop a technical seed production sheet for better development of ginger cultivation in Benin.

关键词： Acclimatization Zingiber officinale Weaning Nutrient Solutions Substrates

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On the functions of astrocyte-mediated neuronal slow inward currents

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Neural Regeneration Research 2024年第12期19卷 2602-2612页

作者： Balázs Pál Department of Physiology Faculty of MedicineUniversity of DebrecenDebrecenHungary

Slow inward currents are known as neuronal excitatory currents mediated by glutamate release and activation of neuronal extra synaptic N-met hyl-D-aspartate receptors with the contribution of *** events are significantly slower than the excitatory postsynaptic *** of slow inward currents are determined by seve ral factors including the mechanisms of astrocytic activation and glutamate release,as well as the diffusion pathways from the release site towards the extra synaptic recepto *** are stimulated by neuronal network activity,which in turn excite neurons,forming an astrocyte-neuron feedback *** as a consequence of brain edema,astrocytic swelling can also induce slow inward currents under pathological *** is a growing body of evidence on the roles of slow inward currents on a single neuron or local network *** events often occur in synchro ny on neurons located in the same astrocytic *** synchronization of neuronal excitability,slow inward currents also set synaptic strength via eliciting timing-dependent synaptic *** addition,slow inward currents are also subject to non-synaptic plasticity triggered by long-la sting stimulation of the excitatory *** note,there might be important regionspecific differences in the roles and actions triggering slow inward *** greater networks,the pathophysiological roles of slow inward currents can be better understood than physiological *** inward currents are identified in the pathophysiological background of autism,as slow inward currents drive early hypersynchrony of the neural *** inward currents are significant contributors to paroxysmal depolarizational shifts/interictal *** events are related to epilepsy,but also found in Alzheimer's disease,Parkinson's disease,and stroke,leading to the decline of cognitive *** with features overlapping with slow inward currents(excitatory,N-methyl-Dasp

关键词： astrocyte cortical spreading depolarization gliotransmission glutamate neural synchronization NMDA receptor paroxysmal depolarizational shift slow inward current

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On calculating glacial isostatic adjustment

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Geodesy and Geodynamics 2024年第5期15卷 441-452页

作者： l.M.Cathles Cornell University IthacaNY 14853USA

Modeling the earth's fluid and elastic response to the melting of the glaciers of the last ice age is the most direct way to infer the earth's radial viscosity ***,we compare two methods for calculating the viscoelastic response to surface *** one,the elastic equation of motion is converted to a viscoelastic equation using the Correspondence *** the other,elastic deformation is added to the viscous flow as isostatic adjustment *** two modeling methods predict adjustment histories that are different enough to potentially impact the interpretation of the observed glacial isostatic adjustment(GIA).The differences arise from buoyancy and whether fluid displacements are subjected to hydrostatic *** methods agree if they use the same equations and boundary *** origin of the differences is determined by varying the boundary conditions and pre-stress application.

关键词： glacial isostatic adjustment Viscoelastic normal modes Hydrostatic pre-stress Elastic buoyancy Correspondence principle

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