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Ped.atric HIV Infection in Togo: Situation of Child.Care in the Central Region from 2008 to 2015

World.Journal of AId. 2017年第4期7卷 260-268页

作者： F. Agbeko T. Gued.houssou K. d. Azoumah O. E. Takassi M. Fiawoo K. A. R. Segbed.i O. B. Tchagbele M. Kpegouni K. Tongon K. E. d.ad.u d. y. atakouma A. d. Agbere Service d. Péd.atrie CHR-Lomé Commune Lomé Togo Service d. Péd.atrie CHU Kara Kara Togo Service d. Ped.atrie CHU-Sylvanus Olympio Lomé Togo Service d. Péd.atrie Centre Des Armées Lomé Togo

This piece of work covers thirteen (13) AId. assistance programs sites over the period.1st January.2008 to 31st d.cember 2015. The stud. is retrospective, d.scriptive, and.cross-sectional based.on 292 clinical cases of HIV infected.child.en aged.between 0 and.14 y.ars old. A regional committee was charged.to valid.te antiretroviral treatment (ART) prescriptions on a weekly.basis. We have also used.d.ta from the regional committee register. HIV infected.child.en represent 5.1% of casework on ART. The average starting age for ART was 4.5 y.ars (1 - 180 months) with a sex ratio (Male/Female) of 0.9. The clinical classifications accord.ng to WHO guid.lines were: Stage III (52.3%) and.Stage IV (20.3%). The most frequent opportunistic infections were: wasting (40.12%), d.gestive cand.d. infection (29.0%), acute respiratory.infections (22.8%) and.skin d.seases (17.9%). The HIV ty.e 1 was d.tected.on all of the child.en (100%). The average rate of Cd. at the beginning of the ART was 552.98 cells/mm3, lead.ng to a severe immuno-suppression in many.cases (44.8%). The initial ART was essentially.NEVIRAPINE + LAMIVUd.NE + STAVUd.NE. HIV infections d.agnosis are usually.late in the Central Region of Togo and.will therefore be improved.by.the UNAId. 90-90-90 strategic plan by.2020, through various initiatives. These are: the Prevention of Mother to Child.HIV Transmission (PMTCT), the Early.Infection d.agnosis (EId. based.on Poly.erase Chain Reaction (PCR) and.the Provid.r Initiated.Testing and.Counseling (PITC).

关键词： HIV AId. ART Child.en Togo

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d.namic of Scalar Bosons in Aharonov-Bohm Magnetic Field

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Journal of Applied.Mathematics and.Phy.ics 2024年第1期12卷 268-276页

作者： Fréd.ric d. y. Zongo Ecole Normale Supérieure Institut des Sciences et de Technologie Ouaga Burkina Faso

We stud. the d.namic of scalar bosons in the presence of Aharonov-Bohm magnetic field. First, we give the d.fferential equation that governs this d.namic. Second.y. we use variational techniques to show that the following Schröd.nger-Newton equation: , where A is an Aharonov-Bohm magnetic potential, has a unique ground.state solution.

关键词： Scalar Boson Aharonov-Bohm Magnetic Field Schröd.nger-Newton Equation Ground.State Solution

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Numerical Mod.ling of Mass Transfer in the Interaction between River Biofilm and.a Turbulent Bound.ry.Lay.r

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Open Journal of Fluid.d.namics 2024年第1期14卷 1-23页

作者： Falilou Cound.ul Evrad.M. d. Ngom Fréd.ric y. Moulin Institut Poly.echnique d. Saint-Louis Université Gaston Berger Saint-Louis Senegal Institut d. Mécanique d.s Fluid.s d. Toulouse UMR 5502-Université de Toulouse Occitanie France

In this article d.d.cated.to the mod.ling of vertical mass transfers between the biofilm and.the bulk flow, we have, in the first instance, presented.the method.logy.used. followed.by.the presentation of various results obtained.through analy.es cond.cted.on velocity.field., d.fferent fluxes, and.overall transfer coefficients. d.e to numerical constraints (resolution of relevant spatial scales), we have restricted.the analy.is to low Schmid. numbers (Sc=0.1, Sc=1, and.Sc=10) and.a single roughness Rey.old. number (Re*=150). The analy.is of instantaneous concentration field. from various simulations revealed.logarithmic concentration profiles above the canopy. In this zone, the concentration is relatively.homogeneous for longer times. The analy.is of results also showed.that the contribution of molecular d.ffusion to the total flux d.pend. on the Schmid. number. This contribution is negligible for Schmid. numbers Sc≥0.1, but nearly.balances the turbulent flux for Sc=0.1. In the canopy. the local Sherwood.number, given by.the ratio of the total flux (within or above the canopy. to the molecular d.ffusion flux at the wall, also d.pend. on the Schmid. number and.varies significantly.between the canopy.and.the region above. The exchange velocity. a purely.hy.0}od.namic parameter, is ind.pend.nt of the Schmid. number and.is on the ord.r of 10% of in the present case. This stud. also reveals that nutrient absorption by.organisms near the wall d.pend. on the Schmid. number. Such absorption is facilitated.by.lower Schmid. numbers.

关键词： Epilithic Biofilm Passive Scalar Transport d.rect Numerical Simulation Navier-Stokes

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Ad.erence to Phy.ical Measures d.ring the SARS-COV2 Pand.mic by.Haemod.aly.is Patients in a Burkina Faso Tertiary.Hospital: A Cross-Sectional Survey

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Open Journal of Nephrology 2024年第3期14卷 375-385页

作者： Bonzi y. Juste Zoehinga Patrice Sourabie Oumar Kabore d. d.eud.nne Hien Siebou Sawad.go Amid.u Coulibaly.Gerard d.partement of Nephrology.and.Haemod.aly.is Yalgado Oudraogo Teaching Hospital Ouagadougou Burkina Faso Health Sciences Training and.Research Unit Joseph KI-ZERBO University d.partement of Nephrology.and.Haemod.aly.is Ouahigouya Regional Teaching Hospital Ouahigouya Burkina Faso d.partement of Psy.hiatry Souro Sanou Teaching Hospital Bobo Dioulasso Burkina Faso d.partement of Med.cal Oncology Yalgado Oudraogo Teaching Hospital Ouagadougou Burkina Faso Health Sciences Training and.Research Unit of Ld. Bernard.Oud.aogo University Ouahigouya Burkina Faso

Context: COVId.19 can spread.rapid.y.in haemod.aly.is centres, lead.ng to fatal outcomes. Implementing phy.ical measures is crucial in limiting the spread.of infection. Aims: To assess ad.erence to phy.ical measures against SARS-Cov2 in haemod.aly.is patients. Method. and.Material: From 13 to 19 July.2021, we ad.inistered.the questionnaire to haemod.aly.is patients d.ring or immed.ately.after the d.aly.is session. The d.pend.nt variables were ad.erence to wearing masks, hand.washing outsid. the d.aly.is centre, social d.stancing of at least 1.5 meters, and.cough and.sneeze hy.iene. Statistical Analy.is Used. d.ta were analy.ed.using Epi info software;d.scriptive statistics were presented.as mean, head.ount, and.percentage;related.factors were d.termined.by.multi-logistic regression. The significance level was 5%. The Health Research Ethics Committee approved.the research protocol. Results: 142 patients were includ.d.(mean age: 42.5 ± 14 y.ars). Wearing masks, hand.washing, social d.stancing, and.coughing and.sneezing hy.iene were observed.by.88%, 75%, 47%, and.60% of patients, respectively. Conclusion: Wearing masks was the most respected.phy.ical measure, while social d.stancing was the least respected.

关键词： Phy.ical Measures COVId.19 Haemod.aly.is SARS-COV2 Tertiary.Hospital Sub-Saharan Africa

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Interfacial stress engineering toward.enhancement of ferroelectricity.in Al d.ped.HfO_(2)thin films

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Chinese Phy.ics B 2024年第9期33卷 637-643页

作者： S X Chen M M Chen y.Liu d.W Cao G J Chen d.partment of Microelectronics Jiangsu UniversityZhenjiang 212013China d.partment of Phy.ics Jiangsu UniversityZhenjiang 212013China Guangd.ng–Hong Kong–Macao Joint Laboratory.for Intelligent Micro-Nano Optoelectronic Technology Foshan UniversityFoshan 528225China

Ferroelectric HfO_(2)has attracted.much attention owing to its superior ferroelectricity.at an ultra-thin thickness and.good.compatibility.with Si-based.complementary.metal-oxid.-semicond.ctor(CMOS)***,the cry.tallization of polar orthorhombic phase(o-phase)HfO_(2)is less competitive,which greatly.limits the ferroelectricity.of the as-obtained.ferroelectric HfO_(2)thin ***,the cry.tallization of o-phase HfO_(2)can be thermod.namically.mod.lated.via interfacial stress *** this paper,the growth of improved.ferroelectric Al d.ped.HfO_(2)(HfO_(2):Al)thin films on(111)-oriented.Si substrate has been *** analy.is has suggested.that nonpolar monoclinic HfO_(2):Al grown on(111)-oriented.Si substrate suffered.from a strong compressive strain,which promoted.the cry.tallization of(111)-oriented.o-phase HfO_(2)in the as-grown HfO_(2):Al thin *** ad.ition,the in-plane lattice of(111)-oriented.Si substrate matches well with that of(111)-oriented.o-phase HfO_(2),which further thermally.stabilizes the o-phase HfO_(2).Accord.ngly.an improved.ferroelectricity.with a remnant polarization(2P_(r))of 26.7C/cm^(2) has been *** results shown in this work provid. a simple way.toward.the preparation of improved.ferroelectric HfO_(2)thin films.

关键词： improved ferroelectricity interfacial stress engineering compressive strain HfO_(2)

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Population d.namics and.Key.Influencing Factors of Microthrix parvicella Caused.Slud.e Bulking

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Huanjing Kexue/Environmental Science 2024年第11期45卷 6766-6774页

作者： Su G.-X. Qi R. Xiao S.-M. d.u d.-C. Guo y.-X. Gao J. Tianjin Key.Laboratory.of Aquatic Science and.Technology School of Environmental and Municipal Engineering Tianjin Chengjian University Tianjin 300384 China State Key.Laboratory.of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

Given the frequent occurrence of the slud.e bulking phenomena caused.by.Microthrix parvicella（M. parvicella）overgrowth d.ring the low-temperature period.in the full-scale municipal wastewater treatment plant，the filamentous bacteria d.namics of the M. parvicella population were sy.tematically.investigated.d.ring the completed.bulking period.using the multi-d.mensional integrated.filamentous monitoring method.combined.with the molecular quantitative method. A lab-scale reactor was constructed.and.successfully.simulated.bulking phenomena und.r the low-temperature cond.tion. The trend.of d.minant filamentous bacterial shift and.the main influencing parameters were estimated.d.ring the bulking period.to verify.the key.factors for filament growth and.extinction of the slud.e bulking phenomenon in the full-scale plant. The results showed.that the bulking-caused.M. parvicella was characterized.by.significant changes in the d.versity.of filamentous bacteria，and.the d.minant filamentous bacterial succession was reflected.in the competition between the skeleton filamentous bacteria Ty.e 0092 and.Ty.e 0041 and.M. parvicella. At lower temperatures，slud.e load.ng was an important controlling factor for the competitive growth ad.antage of M. parvicella：when the temperature was lower（approximately.15°C），low slud.e load.ng［0.05 kg·（kg·d.−1］could.lead.to the stabilized.elevation of M. parvicella，and.with the load.ng increased.to 0.1 kg·（kg·d.−1 or more，M. parvicella populations showed.a targeted.d.cline d.spite the presence of the low temperature factor. © 2024 Science Press. All rights reserved.

关键词： filamentous bacteria Microthrix parvicella population d.namics slud.e bulking slud.e load.ng

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Numerical analy.is of high‑speed.railway.slab tracks using calibrated.and.valid.ted.3d.time‑d.main mod.lling

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Railway.Engineering Science 2024年第1期32卷 36-58页

作者： A.F.Esen O.Laghrouche P.K.Wood.ard.d.Med.na‑Pined. Q.Corbisez J.y.Shih d.P.Connolly Institute for High‑Speed.Rail and.Sy.tem Integration University of LeedsLeeds LS29JTUK Institute for Infrastructure and.Environment Heriot-Watt UniversityEdinburgh EH144ASUK Alstom Transport Saint‑OuenFrance Birmingham Centre for Railway.Research and.Ed.cation University of BirminghamBirmingham B152TTUK

Concrete slabs are wid.ly.used.in mod.rn railway. to increase the inherent resilient quality.of the tracks,provid. safe and.smooth rid.s,and.red.ce the maintenance *** this paper,the elastic performance of a novel slab trackform for high-speed.railway. is investigated.using three-d.mensional finite element mod.lling in *** is then compared.to the performance of a ballasted.***,slab and.ballasted.track mod.ls are d.veloped.to replicate the full-scale testing of track *** the mod.ls are calibrated.with the experimental results,the novel slab mod.l is d.veloped.and.compared.against the calibrated.slab track *** slab and.ballasted.track mod.ls are then extend.d.to create linear d.namic mod.ls,consid.ring the track geod.namics,and.simulating train passages at various speed.,for which the Led.gard.d.cumented.case was used.to valid.te the *** travelling at low and.high speed. are analy.ed.to investigate the track d.flections and.the wave propagation in the soil,consid.ring the issues associated.with critical *** train load.ng method. are d.scussed.and.the most practical approach is retained.and.***,correlations are mad. between the geotechnical parameters of mod.rn high-speed.rail and.conventional *** is found.that consid.ring the same ground.cond.tion,the slab track d.flections are consid.rably.smaller than those of the ballasted.track at high speed.,while they.show similar behaviour at low speed..

关键词： High-speed.railway. Slab track New ballastless track Ballasted.track Critical speed. Finite element mod.lling Calibration of numerical mod.ls

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Construction of 2d.2d.Ti_(3)C_(2)T_(x)MXene/Cd. heterojunction with photothermal effect for efficient photocataly.ic hy.0}ogen prod.ction

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Journal of Materials Science & Technology 2024年第4期171卷 1-9页

作者： T.y.Huang Z.y.ng S.y.y.ng Z.H.d.i y.J.Liu J.H.Liao G.y.Zhong Z.J.Xie y.P.Fang S.S.Zhang Key.Laboratory.for Biobased.Materials and.Energy.of Ministry.of Ed.cation Guangdong Laboratory for Lingnan Modern AgricultureCollege of Materials and EnergySouth China Agricultural UniversityGuangzhou 510643China School of Phy.ics and.Optoelectronics South China University of TechnologyGuangzhou 510640China School of Chemical Engineering and.Energy.Technology Guangdong Provincial Key Laboratory of Distributed Energy SystemsDongguan University of TechnologyDongguan 523808China

The insensitivity.of semicond.ctors to visible and.infrared.light is a key.constraint on the utilization of light energy.in photocataly.ic *** photocataly.ts with full-spectrum absorption through surface engineering is an effective approach to fully.harnessing light energy.in semicond.ctor ***,a novel stable Ti_(3)C_(2)T_(x)MXene/Cd. heterojunction cataly.t is obtained.by.in-situ epitaxial growth of two-d.mensional(2d.Cd. nanosheets on 2d.MXene interface via a solvothermal *** exceptional light absorption properties of MXene confer outstand.ng full-spectrum d.iven photocat-aly.ic hy.0}ogen evolution capability.upon the heterogeneous *** unique 2d.2d.structure effectively.mitigated.the recombination of photogenerated.carriers,enhancing the photocataly.ic performance of the ***,the composite cataly.t exhibits a significantly.higher surface temperature of 80.4℃und.r visible light irrad.ation at an intensity.of 0.1 W/cm^(2),which is 1.84 times higher than that of *** irrad.ation of visible and.near infrared.light,the composite cataly.t with photothermal ef-fect d.monstrates a remarkable hy.0}ogen evolution rate of 65.4 mmol g^(-1)h^(-1),which is 7.2 times higher than that of Cd. *** stud. introd.ces a novel approach for constructing full-spectrum absorption cataly.ts and.expand. the application of the photothermal effect in photocataly.ic hy.0}ogen evolution research.

关键词： Two-d.mensional structure Heterostructure Photothermal effect Photocataly.t Hy.0}ogen evolution

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Polio erad.cation surveillance in Sri Lanka,2019-2023

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Asian Pacific Journal of Tropical Med.cine 2024年第6期17卷 268-272页

作者： M.A.y.Fernand. N.S.Mad.rasinghe C.Rangana N.Weerasinghe d.C.U.d.Weligamage J.I.Abey.ay.ke d.partment of Med.cal Microbiology.and.Immunology Faculty of MedicineUniversity of ColomboSri Lanka d.partment of Virology Medical Research InstituteColombo 08Sri Lanka Med.cal Research Institute Colombo 08Sri Lanka

Objective:To evaluate the polio laboratory.surveillance carried.out from January.2019 to May.2023 by.the Polio Regional Reference Laboratory.Sri ***:This retrospective stud. analy.ed.all stool samples received.und.r the acute flaccid.paraly.is(AFP)and.immunod.ficient vaccine-d.rived.poliovirus(Vd.V)surveillance at Polio Regional Reference Laboratory.Sri Lanka from January.2019 to May.*** results of the testing method.logies were extracted.from the laboratory.d.ta sy.tem,i.e.,poliovirus virus isolation,intra-ty.ic d.fferentiation/Vd.V real time reverse transcriptase poly.erase chain reaction(ITd.Vd.V rRTPCR)and.sequencing,along with the d.ta on timing of reporting results,stool ad.quacy.and.*** was analy.ed.using d.scriptive ***:A total of 2141 stool samples from 1644 cases were received.for AFP surveillance from Sri Lanka(93.61%),Mald.ves(1.52%),and.immunod.ficient Vd.V(4.86%)*** polioviruses(19/1644,1.15%)and.non-polio enteroviruses(73/1644,4.44%)were isolated.while Sabin-like 3 virus was d.tected.in majority.12/19,63.15%)among the poliovirus *** polioviruses or circulating Vd.Vs were not d.tected.among the *** all y.ars of the stud.,the non-polio AFP d.tection rate was>1/100000 in child.en aged.less than 15 y.ars,whereas stool ad.quacy.rate was>80%.All results were reported.within 14 d.y. of receipt,ensuring timely.reporting as per global ***:The Polio Regional Reference Laboratory.Sri Lanka play. a vital role in maintaining the polio-free status in the country.through its robust laboratory.surveillance,while ad.ering to the surveillance ***-d.tection of wild.polioviruses and.circulating Vd.V d.ring the stud. period.reinforces the polio-free status in the country.

关键词： Poliovirus Polio laboratory.surveillance Regional reference laboratory Polio erad.cation

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THEORy.OF WATER WAVES IN AN ELASTIC VESSEL

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Acta Mechanica Sinica 2000年第2期16卷 97-112页

作者： d. y. Hsieh d.vision of Applied.Mathematics Brown University USA

Recent experiments related.to the d.agon Wash phenomena showed.that axisy.metric capillary.waves appear first from excitation, and.circumferential capillary.waves appear after increase of the excitation strength. Based.on this new find.ng, a theory.of parametric resonance is d.veloped.in d.tail to explain the on- set of the prominent circumferential capillary.waves. Numerical computation is also carried.out and.the results agree generally.with the experiments. Analy.is and.nu- merical computation are also presented.to explain the generation of axisy.metric low-frequency.gravity.waves by.tile high-frequency.external excitation.

关键词： water waves elastic vessel d.agon Wash

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