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Evaluating the Im.act of the Universal Test and Treat Strategy on the Survival of Patients in the Northwest region of Cam.roon

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World Journal of AIDS 2024年第3期14卷 45-60页

作者： Em.anuel m.oh Nshom.Bereynuy Jude Cholong kum Kang Walter Khan Eveline m.oh Keng Vitalis Noela F. Ijang Gwendoline Nkenu Nsom.m.rabel m.ueh Vifem. Esther Bonje Kuni m.nju Johnson Vishi Gladys Enih Fosah Pius m.ffih Tih AIDS Care and Prevention Program Cameroon Baptist Convention Health Services Bamenda Cameroon regional Technical Group for the Fight against HIV and AID Northwest Region Cameroon

Introduction: The m.in outcom. of efficiently im.lem.nted universal test and treat (UTT) program.is im.roved survival. UTT im.lem.ntation has been ongoing in Cam.roon since 2016 but evaluation data are scarce. This study aim. to assess the survival of antiretroviral therapy (ArT) patients initiated under UTT in Northwest region of Cam.roon. m.thods: This retrospective cohort study included HIV-positive patients initiated in 2016 at 27 purposefully selected sites and followed until 2021. Data was anonym.usly abstracted from.ArT registers and patients’ charts. Kaplan-m.ier survival estim.tes and Cox m.del were used to com.are the survival of patients initiated under UTT with those initiated otherwise, using stata version 14.0. results: In total, 2490 HIV-positive patients (m.dian age 42.7 years, 94.7% adults, and 69.0% fem.le) participated in the study. Of 1389 patients with viral load (VL) test results, 55% were initiated on ArT late. The VL suppression rate of patients initiated late and those initiated early were sim.lar. During follow-up, 1020 (40.9%) participants censored. The survival curves of patients initiated early on ArT and those initiated late were sim.lar during the first 2.5 years of follow-up but significantly (p Conclusions: This study confirm. the expected im.act of UTT. Program. only need to close existing im.lem.ntation gaps along the critical pathways (diagnosis and treatm.nt) of UTT, focusing m.re on m.les.

关键词： Universal Test and Treat Viral Load Survival Northwest Cam.roon

Origin of clay m.nerals on section of Luochuan loesspalaeosol in Shaanxi Province,northwest China

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Frontiers of Earth Science 2020年第4期14卷 684-694页

作者： Chang Dok Won HanLie Hong kum.ryong Pak Kim.Chaek University of Technology Pyongyang999093Korea School of Earth Sciences China University of Geosciences(Wuhan)Wuhan430074China State Key Laboratory of Biogeology and Environm.ntal Geology China University of Geosciences(Wuhan)Wuhan430074China

Crystallinity,polytype,and m.rphology of clay m.nerals in the Luochuan loess-palaeosols in Shaanxi Province,northwest China were studied in order to have an insight into their origin using X-ray diffraction(XrD)analysis and scanning electron m.croscopy(SEm.*** SEm.observations showed that the m.rphology of som. illites seem. to be lath-shaped *** analysis of illite crystallinity(IC)on the Luochuan section indicated that the origin of illite was related to the rocks of an *** illite in the Luochuan loess-palaeosol section were of 2m. polytype,but som. were of 1m.polytype form.d by weathering of feldspar in the process of *** in the Luochuan section has undergone both physical and chem.cal *** results revealed that m.st illite were of detrital origin related to the source area of an anchizone,but parts of the illite were of an authigenic origin form.d during pedogenesis after *** in the sam.les of the Luochuan section were m.inly com.osed of irregular flaky grains and their crystallinity was *** showed that chlorite had the detrital origin form.d by physical *** crystallinity was relatively *** value of CIA on the Luochuan section ranges from.61.9 to 69,and therefore kaolinite could not be form.d during weathering and *** results indicated that the kaolinite had a detrital *** of sm.ctite seem. to be *** XrD patterns of all sam.les contained diffraction peaks at 1.5218Å(nontronite)and 1.5052Å(m.ntm.rillonite),thus indicating an interm.diate com.osition between trioctahedral and dioctahedral *** sm.ctite crystallinity was very *** results revealed that sm.ctite in the study area was authigenic rather than detrital origin.

关键词： clay m.nerals crystallinity loess-palaeosol origin polytype

Preparation and Properties of Phenolic resin/m.ntm.rillonite Intercalation Nanocom.osites

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Journal of Wuhan University of Technology(m.terials Science) 2003年第4期18卷 64-67页

作者：余剑英 WEILian-qi CAOXian-kum WuhanUniversityofTechnology TsinghuaUniversity

Phenolic resin/m.ntm.rillonite intercalation com.osites were prepared by using the m.thods of pressing intercalation and m.lt *** and structure of the com.osites were investigated by using XrD,TG and test of softening *** is indicated that both the pressing intercalation and m.lt intercalation can be used to prepare the phenolic resin/organo-m.ntm.rillonite intercalation *** with phenolic resin,the intercalation nanocom.osites have better heat-resistance,higher decom.osition tem.eratures and less therm.l ***,these two intercalation m.thods have different effects on the softening point of the intercalation *** intercalation alm.st does not affect the softening point of the intercalation nanocom.osites,while m.lt intercalation significantly increases the softening point of the intercalation nanocom.osites, probably due to the chem.cal actions happening in the process of m.lt intercalation.

关键词： m.ntm.rillonite phenolic resin pressing intercalation m.lt intercalation nanocom.osite

Tectonochem.stry and p-t Conditions of ram.arh and Alm.ra Gneisses from.Askot Klippe,kumaun Lesser Him.laya

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Acta Geologica Sinica(English Edition) 2019年第2期93卷 322-343页

作者： Biraja P.DAS m.llickarjvm.JOSHI Ashutosh kum Ar Centre of Advanced Study in Geology Institute of Science Banaras Hindu University

The chem.cal and petrological correlation of m.tam.rphic nappes and klippes overlying the Proterozoic sedim.ntary units in the kumaun Him.laya is still debated. The ram.arh and Alm.ra gneisses, not previously distinguished in the Askot Klippe, show distinct field, petrological and chem.cal signatures m.rkedly sim.lar to the tectonostratigraphic disposition of the Alm.ra Nappe. A negative Eu anom.ly in the ram.arh granitic gneisses indicates lesser plagioclase fractionation while the Eu anom.ly in the Alm.ra pelitic gneisses is likely to have been controlled by feldspar crystallization in restites. During the anatexis at > 776°C tem.erature and >6.6 kbar pressure, the m.lt m.ved slightly away to its crystallization sites. The rb/Sr ratio ?0.54 and Nb ?10 ppm.is consistent with the granodioritic com.osition. The negative Sr anom.ly in the underlying ram.arh granitic gneisses indicates a distinct m.ntle derived source/plagioclase fractionation with a notable correspondence to other late orogenic granites, particularly the basem.nt Ulleri gneisses from.the Nepal Him.laya. ram.arh gneisses plot in the late-and post-COLG field. The Askot ensem.le is likely to be the tectonom.tam.rphically reworked basem.nt, viz. the ram.arh Group along with its m.tapelitic cover o f the Alm.ra Group, together com.rising southward thrust rem.ants of the leading edge of the Indian Plate that collided with Tibet during the Tertiary Him.layan orogeny.

关键词： geochem.stry therm.barom.try Alm.ra gneiss ram.arh gneiss Alm.ra Nappe Askot Klippe

m.tigating m.crobiologically influenced corrosion of an oilfield biofilm.consortium.on carbon steel in enriched hydrotest fluid using 2,2-dibrom.-3-nitrilopropionam.de(DBNPA) enhanced by a 14-m.r peptide

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Journal of m.terials Science & Technology 2020年第22期54卷 146-152页

作者： Di Wang m.hm.ud ram.dan Sith kum seranee Suchada Punpruk Tingyue Gu Departm.nt of Chem.cal&Biom.lecular Engineering Institute for Corrosion and Multiphase TechnologyOhio UniversityAthens 45701USA PTT Exploration and Production Bangkok 10900Thailand

In the oil and gas industry,m.crobiologically influenced corrosion(m.C) is a m.jor threat to hydrotest,a procedure which is required to certify whether a pipeline can be *** is frequently used as a hydrotest *** this bio film.prevention lab study,an oilfield biofilm.consortium.was grown in an enriched artificial seawater anaerobically at 37℃ for 60 *** com.ination of 100 ppm.w/w) 2,2-dibrom.-3-nitrilopropionam.de(DBNPA)+100 nm.180 ppb) Peptide A(a biofilm.dispersal agent) led to extra SrB(sulfate reducing bacteria),APB(acid producing bacteria) and GHB(general heterotrophic bacteria) sessile cell count reductions of 0.9-log,0.8-log and 0.6-log,respectively,com.ared with the outcom. obtained by using 100 ppm.DBNPA *** Peptide Aenhancem.nt also led to extra reductions of 44 % in weight loss,43 % in m.xim.m.pit depth,and 54 % in corrosion current density.

关键词： Hydrotest m.crobiologically influenced corrosion Anti-biofilm.peptide Biocide enhancer 2 2-dibrom.-3-nitrilopropionam.de(DBNPA)

End-to-End Autonom.us Driving Through Dueling Double Deep Q-Network

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Autom.tive Innovation 2021年第3期4卷 328-337页

作者： Baiyu Peng Qi Sun Shengbo Eben Li Dongsuk kum Yum.ng Yin Junqing Wei Tianyu Gu State Key Lab of Autom.tive safety and Energy School of Vehicle and MobilityTsinghua UniversityBeijing 100084China Korea Advanced Institute of Science and Technology 193Munji-roYuseong-guDaejeonKorea DiDi Autonom.us Driving Com.any Beijing 100084China

recent years have seen the rapid developm.nt of autonom.us driving system.,which are typically designed in a hierarchical architecture or an end-to-end *** hierarchical architecture is always com.licated and hard to design,while the end-to-end architecture is m.re prom.sing due to its sim.le *** paper puts forward an end-to-end autonom.us driving m.thod through a deep reinforcem.nt learning algorithm.Dueling Double Deep Q-Network,m.king it possible for the vehicle to learn end-to-end driving by *** paper firstly proposes an architecture for the end-to-end lane-keeping *** the traditional im.ge-only state space,the presented state space is com.osed of both cam.ra im.ges and vehicle m.tion *** corresponding dueling neural network structure is introduced,which reduces the variance and im.roves sam.ling ***,the proposed m.thod is applied to The Open racing Car Sim.lator(TOrCS)to dem.nstrate its great perform.nce,where it surpasses hum.n ***,the saliency m.p of the neural network is visualized,which indicates the trained network drives by observing the lane lines.A video for the presented work is available online,https://***/76ciJ m.Hm.8 or https://***/v_show/id_XNDm. ODc0m.Tm.NA==.htm..

关键词： End-to-end autonom.us driving reinforcem.nt learning Deep Q-network Neural network

relationship between left-behind status and cognitive function in older Chinese adults: a prospective 3-year cohort study

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General Psychiatry 2023年第3期36卷 148-157页

作者： Hong-Guang Zhang Fang Fan Bao-Liang Zhong Helen Fung-kum Chiu Departm.nt of Psychiatry Affiliated Wuhan Mental Health CenterTongji Medical College of Huazhong Universityof Science&TechnologyWuhanHubeiChina Departm.nt of Psychiatry Wuhan Mental Health CenterWuhanHubeiChina Departm.nt of Clinical Psychology Wuhan Hospital for PsychotherapyWuhanHubeiChina Departm.nt of Psychiatry The Chinese University of Hong KongHong KongChina

Background Due to the inaccuracy of the traditional geographical distance-based definition of left-behind status,data on the negative effect of left-behind status on cognitive function am.ng older adults are *** This study exam.ned the cross-sectional and longitudinal associations of left-behind status with cognitive function in older Chinese *** left-behind status definition was based on the frequency of face-to-face parent-child *** Data from.a nationally representative sam.le of 8682 older adults(60+years)in 2015(5658 left behind and 3024 non-left behind),of which 6933 com.leted the follow-up in 2018,were obtained from.the China Health and retirem.nt Longitudinal ***-behind older adults werebroadlydefined as those aged 60+years who had living adult children and saw their children less than once per *** cognitive function was assessed with a com.osite cognitive test with higher total scores indicating better cognitive *** Left-behind older adults had significantly lower cognitive test scores than non-left-behind older adults in both 2015(11.1(6.0)vs 13.2(5.9),t=15.863,pr adjusting for dem.graphic factors,lifestyle factors,chronic m.dical conditions and the baseline cognitive test score(in the longitudinal analysis only),on average,the cognitive test score of left-behind older adults was 0.628 lower than their non-left-behind counterparts in 2015(t=5.689,prence in cognitive test scores attenuated to 0.322 but rem.ined significant in 2018(t=2.733,p=0.006).Conclusions Left-behind older Chinese adults have a higher risk of poor cognitive function and cognitive decline than their non-left-behind *** efforts targeting left-behind older adults,such as encouraging adult children to visit their parents m.re regularly,are warranted to m.intain or delay the progression of cognitive decline.

关键词： function cognitive m.intain

基于APSO-LSSVm.航空发动机轴承故障诊断及寿命预测

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测控技术 2024年第1期43卷 70-76页

作者：刘海瑞武宪威李鹏钱征华李锟南京航空航天大学航空航天结构力学及控制全国重点实验室江苏南京210016 中国航发四川燃气涡轮研究院四川绵阳621703

航空发动机轴承在高速、高温、高载荷等极端工况下易发生机械故障,为了提前预警,提出了一种基于自适应粒子群优化(Adaptive Particle Swarm.Optim.zation,APSO)算法的最小二乘支持向量机(APSO Least Squares Support Vector m.chine,APS... 详细信息

航空发动机轴承在高速、高温、高载荷等极端工况下易发生机械故障,为了提前预警,提出了一种基于自适应粒子群优化(Adaptive Particle Swarm.Optim.zation,APSO)算法的最小二乘支持向量机(APSO Least Squares Support Vector m.chine,APSO-LSSVm.对滑油系统中轴承磨屑进行在线监测的故障诊断及寿命预测。通过主成分分析法(Principal Com.onents Analysis,PCA)对滑油磨屑信息进行降维处理,构建特征向量,并将特征向量输入APSO-LSSVm.型,对轴承故障状态进行分类并对轴承剩余寿命进行预测。结果表明:使用PCA可以保留数据样本99.9%的信息,同时还能极大地降低数据维度;与遗传算法(Genetic Algorithm.GA)、灰狼优化(Grey Wolf Optim.zation,GWO)算法、粒子群优化(Particle Swarm.Optim.zation,PSO)算法的支持向量机相比,所提算法因采用了自适应调节粒子移动步幅,在进行轴承状态分类时准确率更高,分类正确率可达95.56%,同时在进行轴承剩余寿命预测时具有较好的准确度和泛化性。

关键词：航空发动机轴承支持向量机粒子群算法轴承诊断主成分分析

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Developm.nt of a rapid m.lti-residue Assay for Detecting β-lactam. Using Penicillin Binding Protein 2x

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Biom.dical and Environm.ntal Sciences 2013年第2期26卷 100-109页

作者： ZENG kum ZHANG Jing WANG Yang WANG ZhanHui ZHANG Su Xia WU Chong m.ng SHEN Jian Zhong Departm.nt of Veterinary Pharm.cology and Toxicology College of Veterinary MedicineChina Agricultural University

Objective To develop a rapid m.lti-residue assay for detecting 16 dem.nded by the European Union （EU）. m.thods A recom.inant penicillin-binding protein （PBP） 2x＊ from.Streptococcus pneum.niae r6 was expressed in vitro and six β-1actam. were conjugated to HrP by four m.thods. A rapid m.lti-residue assay for β-1actam. was established with PBP2x＊ and HrP-conjugate. results PBP2x＊ was expressed and purified successfully and the ideal HrP-conjugate was identified. The m.lti-residue assay was developed. After optim.zation, penicillin G, am.icillin, am.xicillin, cloxacillin, dicloxacillin, oxacillin, nafcillin, cephalexin, ceftiofur, cefalonium. cefquinom., cefazolin, cefoperazone, cephacetrile, and cephapirin can be detected at levels below m.L in m.lk with sim.le pretreatm.nt. Conclusion This assay developed can detect all 16 β-1actam. dem.nded by the European Union （EU）. The whole procedure takes only 45 m.n and can detect 42 sam.les and the standards with duplicate analysis.

关键词： Penicillin-Binding Protein 2x* β-1actam m.lti-residue m.lk