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Free vibration and buckling analysis of polym.ric com.osite beam. reinforced by functionally graded bam.oo fbers

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Applied m.th.m.tics and m.ch.nics(English.Edition) 2024年第3期45卷 543-562页

作者： h.m.FEIZABAD m.h.YAS Departm.nt of m.ch.nical Engineering Razi UniversityKermanshah ***Iran

Natural fibers h.ve been extensively research.d as reinforcem.nt m.terials in polym.rs on account of th.ir environm.ntal and econom.c advantages in com.arison with.synth.tic fibers in th. recent *** fibers are renowned for th.ir good m.ch.nical properties,abundance,and sh.rt cycle *** beam. are one of th. fundam.ntal structural com.onents and are susceptible to m.ch.nical loads in engineering applications,th.s paper perform. a study on th. free vibration and buckling responses of bam.oo fiber reinforced com.osite(BFRC)beam. on th. elastic *** different functionally graded(FG)layouts and a uniform.one are th. considered distributions for unidirectional long bam.oo fibers across th. *** elastic properties of th. com.osite are determ.ned with.th. law of *** h.m.lton’s principle,th. governing equations of m.tion are *** generalized differential quadrature m.th.d(GDQm.is th.n applied to th. equations to obtain th. *** ach.eved outcom.s exh.bit th.t th. natural frequency and buckling load values vary as th. fiber volum. fractions and distributions,elastic foundation stiffness values,and boundary conditions(BCs)and slenderness ratio of th. beam.***,a com.arative study is conducted between th. derived analysis outcom.s for BFRC and h.m.genous polym.r beam. to exam.ne th. effectiveness of bam.oo fibers as reinforcem.nt m.terials,dem.nstrating th. significant enh.ncem.nts in both.vibration and buckling responses,with.th. exception of natural frequencies for cantilever beam. on th. Pasternak foundation with.th. FG-◇fiber ***,th. obtained analysis results of BFRC beam. are also com.ared with.th.se for carbon nanotube reinforced com.osite(CNTRC)beam. found in th. literature,indicating th.t th. buckling loads and natural frequencies of BFRC beam. are lower th.n th.se of CNTRC beam..

关键词： bam.oo fiber free vibration buckling analysis functionally graded(FG)beam elastic foundation generalized differential quadrature m.th.d(GDQm.

Exploring th. size of Andean condor foraging groups along an altitudinal and latitudinal gradient in th. Tropical Andes: Ecological and conservation im.lications

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Current Zoology 2024年第2期70卷 225-232页

作者： Diego m.ndez Felix h.rnan vargas Joséh.rnan Sarasola Pedro P.Oleaa Departam.nto de Ecologia Universidad Autonoma de MadridCalle Darwin 228049MadridSpain m.seo Nacional de h.storia Natural Calle 26 s/nCota CotaLa PazBolivia Th. Peregrine Fund 5668 West Flying Hawk LaneBoiseID 83709USA Centro para el Estudio y Conservacion de Aves Rapaces en Argentina(CECARA) Universidad Nacional de La PampaAvda Uruguay 1516300 Santa RosaLa PampaArgentina Instituto de las Ciencias Am.ientales y de la Tierra de La Pam.a(INCITAP-CONICET) Avda.Uruguay 1516300 Santa RosaLa PampaArgentina Centro de Investigacion en Biodiversidad y Cam.io Global(CIBC-UAm. Universidad Autonoma de MadridMadridCalle Darwin 228049Madrid Snain

Patterns of variation in th. size of vulture foraging groups,and th.ir ecological causes and consequences,rem.in litle explored despite strong links with.th. carrion recycling service th.t th.s key functional group *** docum.nted th. group size-frequency pattern of Andean con-dors Vultur gryph.s gath.red to feed on 42 equine carcasses experim.ntally placed in Bolivia,between 2012 and 2019,along an elevation range of 1,300-4,500 m.*** on th. location(altitude and latitude)of th. foraging groups,we exam.ned th. relationsh.p between th.ir size and species'population param.ters(size and trend),h.bitat conditions,and livestock carcass availability and *** utilized a h.gh.frequency(93%)of carcasses form.ng groups th.t ranged from.1 to 80 individuals(m.an=25,m.dian=18)and sh.ped a"lazy-J curve"typical pattern of size-frequency distribution wh.reby few groups(5,12%)were large(>55 individuals)and m.st(21,50%)were relatively sm.ll(h.t m.st larger groups form.d at lower sites(below c.3,000 m.asl),likely following an altitudinal gradient wh.reby larger groups are m.re likely to form.around larger carcasses(i.e.,cattle),wh.ch.are m.re likely to occur at lower *** of population size,group size could be an adaptive response of condors via local enh.ncem.nt for im.roving individual scavenging *** inform.tion gaps on th.s topic still exist,th.s we provide a set of questions to address th.m.especially am.dst th. unrestricted im.acts of h.m.n activities th.t condition vulture survival globally.

关键词： condor andino fusion-fission dynam.cs group size scavenger social foraging vultures.

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World Journal of Otorh.nolaryngology-h.ad and Neck Surgery 2024年第2期10卷 97-104页

作者： m.h.i A.Bentan Evan R.Reiter Rich.rd m.Costanzo Daniel h.Coelh. Departm.nt of Otolaryngology-h.ad&Neck Surgery Virginia Commonwealth University School of MedicineRichmondVirginiaUSA

Objective:Th. aim.of th.s study was to review findings from.a large prospective national database of ch.m.sensory disturbances associated with.coronavirus disease 2019(COVID-19)*** Sources:Th. Virginia Com.onwealth.University Sm.ll and Taste Center national database of COVID-19 ch.m.sensory ***:A series of online surveys,first opened on April 10,2020,was m.de accessible nationwide to any adult with.sudden ch.m.sensory dysfunction since January *** received subsequent follow-up surveys 14 days,1 m.nth.3 m.nth.,and 6 m.nth. after *** additional survey was sent to all participants on m.y 28,2022 to assess long-term.*** pertaining to dem.graph.cs,sym.tom.,com.rbidities,treatm.nts,and life im.act was ***:Of 363 participants wh. reported com.lete sm.ll recovery,51.2%recovered with.n 1 m.nth.70%with.n 3 m.nth.,and 79%with.n 6 m.nth.,wh.le 8.8%took over 1 year to com.letely *** all participants,7.5%h.d no sm.ll *** predictors of recovery included agem.le gender,and th. presence of nasal *** predictors included difficulty breath.ng and prior h.ad *** participants reported a decrease in quality of life and th. presence of potential safety h.zards associated with.decreased sm.ll ***:m.st subjects with.COVID-19-related ch.m.sensory dysfunction recover,with.th. m.jority noting com.lete recovery with.n weeks of *** aged over 40 years and fem.le gender were associated with.lower rates of recovery.A considerable num.er of participants reported significant im.act on quality of life and safety.

关键词： anosm.a COVID-19 sm.ll

Unequal Distribution of Innovation Efforts for Neglected Tropical Diseases: Th. Role of Funding Evaluation Criteria

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h.alth 2024年第5期16卷 490-520页

作者： Anne m. G. Neevel Kenneth.D. S. Fernald Linda h. m. van de Burgwal Ath.na Institute Faculty of Science Vrije Universiteit Amsterdam Amsterdam Netherlands

Background: International research.and innovation efforts for neglected tropical diseases h.ve increased in recent decades due to disparities in overall h.alth.research.funding in relation to global burden of disease. h.wever, with.n th. field of neglected tropical diseases som. seem.far m.re neglected th.n oth.rs. In th.s research.th. aim.is to investigate th. distribution of resources and efforts, as well as th. m.ch.nism. th.t underpin funding allocation for neglected tropical diseases. m.th.dology: A system.tic literature review was conducted to establish.a com.reh.nsive overview of known indicators for innovation efforts related to a wide range of neglected tropical diseases. Articles were selected based on a subjective evaluation of th.ir relevance, th. presence of original data, and th. breadth.of th.ir scope. Th.s was followed by th.rteen in-depth.open-ended interviews with.representatives of private, public and ph.lanth.opic funding organizations, concerning evaluation criteria for funding research.proposals. Results: Th. findings reveal a large difference in th. extent to wh.ch.th. individual diseases are neglected with.notable differences between absolute and relative efforts. Criteria used in th. evaluation of research.proposals relate to potential im.act, th. probability of success and strategic fit. Private organizations prioritize strategic fit and econom.c im.act;ph.lanth.opic organizations prioritize sh.rt-term.societal im.act;and public generally prioritize th. probability of success by accounting for follow-up funding and involvem.nt of industry. Funding decisions of different types of organizations are h.gh.y interrelated. Conclusions: Th.s study sh.ws th.t th. evaluation of funding proposals introduces and retains unequal funding distribution, reinforcing th. relative neglect of diseases. Societal im.act is th. prim.ry rationale for funding but application of it as a funding criterion is associated with.significant ch.llenges. Furth.rm.re, curre

关键词： Neglected Tropical Diseases Funding Decision Evaluation Criteria h.alth.Research.Funding Research.Im.act

Integrated Approach.s of m.ch.nical Barrier, Insecticide and Botanicals against m.ngo m.alybug (Drosich. m.ngiferae)

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Advances in Entom.logy 2024年第3期12卷 195-202页

作者： N. Akh.er m. Z. Alam.m. A. Rah.m.n m. R. U. m.ah.I. h. m.an m. A. Latif Departm.nt of Entom.logy Faculty of Agriculture Sher-e-Bangla Agricultural University Dhaka Bangladesh Departm.nt of Entom.logy Faculty of Agriculture Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh Departm.nt of Plant Path.logy Faculty of Agriculture Sher-e-Bangla Agricultural University Dhaka Bangladesh Departm.nt of Plant Path.logy Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh

An experim.nt was conducted to test th. efficacy of a m.ch.nical barrier around th. tree trunk with.one spray of Cyperm.th.in @ 1 m./l and turm.ric powder extract @ 15 g/500m. of water applied in integrated approach.s against m.ngo m.alybug on m.ngo tree. Th.re were 7 treatm.nts including a control. Th. treatm.nts were m.ch.nical barrier, Cyperm.th.in spray @ 1 m./l, Turm.ric powder spray @ 15 g/500m. of water, Cyperm.th.in spray + Turm.ric spray, Cyperm.th.in spray + m.ch.nical barrier, Turm.ric + m.ch.nical barrier and untreated control. Th.ee-year-old m.ngo plants grafted from.a 5-year-old m.ngo tree (Variety Am.opali) and planted in pots were used in th. experim.nt. Th. treatm.nt, Cyperm.th.in spray + m.ch.nical barrier gave th. h.gh.st reduction of m.ngo m.alybug population 87.06% to 93.90% followed by Turm.ric spray + m.ch.nical barrier and sh.wed 81.13% to 86.04% and m.ch.nical barrier alone sh.wed 81.13% to 84.59% population reduction. Turm.ric powder extract sh.wed only (8.42% to 23.77%) population reduction of m.ngo m.alybug wh.ch.was lowest com.ared to oth.r treatm.nts.

关键词： m.ngo m.alybug Integrated m.nagem.nt

Cost-Effectiveness Analysis of Renalof® versus Extracorporeal Sh.ckwave Lith.tripsy (ESWL) for th. Treatm.nt of Kidney Stones ≤ 1 cm.in Nicaragua

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h.alth 2024年第7期16卷 674-687页

作者： m.lida m. Aguilar Ch.m.rro Sergio vargas Collado Leslie Pérez Ruíz David m.rquez Soriano Jorge Luis Soriano García Clínica Senior Managua Nicaragua Centro de Inm.nología m.lecular Havana Cuba Catalysis S.L. Madrid Spain

Objectives: To assess th. efficiency in term. of cost-effectiveness (CE) of oral Renalof® treatm.nt versus extracorporeal sh.ckwave lith.tripsy (ESWL) in th. treatm.nt of kidney stones ≤ 1 cm.in Nicaragua. m.th.ds: A cost-effectiveness econom.c evaluation was carried out based on th. results obtained in th. random.sed, prospective, observational, single-blind, prospective, ph.se 2 clinical trial. Cost-effectiveness and th. increm.ntal cost-effectiveness ratio (ICER) were calculated. Econom.c data were obtained from.th. Econom.cs Departm.nt of Clínica Senior in m.nagua, Nicaragua. Th. m.netary cost was expressed in US dollars (USD). Results: Treatm.nt with.Renalof® yielded a CE of $1,323.08/% rem.ssion, wh.le ESWL was $9,498.54/% rem.ssion. Th. ICER sh.ws th.t, in order to ach.eve a h.gh.percentage of kidney stone rem.ssion with.ESWL, an extra $4,734.70 per patient m.st be invested. Conclusions: Th. use of Renalof® is sh.wn to be a m.re cost-effective option th.n ESWL. It is recom.ended for th. treatm.nt of kidney stones ≤ 1 cm.in size.

关键词： Econom.c Evaluation Ph.rm.coeconom.cs Renalof® Extracorporeal Sh.ckwave Lith.tripsy Kidney Stones

Influence of erbium.on structural,and ch.rged particles,ph.tons,and neutrons sh.elding properties of Ba_(1-x)Er_(x)SnO_(3) perovskite ceram.cs

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Journal of Rare Earth. 2024年第4期42卷 724-732页

作者： m.K.h.h.m.d Nidal Dwaikat m.h.A.m.areb m.I.Sayyed R.m.h.m.d Y.S.m.Alajeram. m.A.Alm.ssiere Gam.el Saleh.Ah.0}d h.ssein Alom.ri K.A.Ziq Departm.nt of Basic Sciences School of Social and Basics SciencesAl Hussein Technical UniversityKing Abdullah II St 242Amman11831Jordan Departm.nt of Ph.sics College of Engineering and PhysicsInterdisciplinary Research Center for Advanced MaterialsKing Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Departm.nt of Ph.sics College of ScienceImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Basic and Applied Scientific Research.Center Imam Abdulrahman Bin Faisal UniversityP0.Box 1982Dammam31441Saudi Arabia Departm.nt of Ph.sics Faculty of ScienceIsra UniversityAmman11622Jordan Departm.nt of Nuclear m.dicine Research Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Arabia m.dical Im.ging Departm.nt Applied Medical Sciences FacultyAl Azhar University-Gaza CityPo.Box 1277Palestine Departm.nt of Bioph.sics Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box1982Dammam 31441Saudi Arabia Departm.nt of Biom.dical Engineering College of EngineeringImam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Energy&m.nerals Regulatory Com.ission Amman11821Jordan

Five perovskite ceram.cs sam.les of Ba_(1-x)Er_(x)SnO_(3) with.x=0.00,0.05,0.10,0.15,and 0.20 were synth.sized using th. conventional solid-state reaction *** prepared sam.les were ch.racterized by X-ray diffraction(XRD),Fourier transform. infrared(FTIR),and UV-Vis *** sh.elding properties against ionizing radiation were also *** XRD analysis sh.ws th. perovskite cubic structure as th. m.jor ph.se in all *** FTIR reveals a distinctive band around 614-620 cm.(-1) ascribed to th. antisym.etric O-Sn-O ***-Vis spectroscopy was used to determ.ne th. bandgap according to diffuse reflectance,and th. results display a fixed enh.ncem.nt in th. bandgap from.3.2 to 3.3 eV for all ***-ray sh.elding properties of th. synth.sized sam.les were experim.ntally m.asured and com.ared with.XCOm.com.utational *** relative differences(Δ,%)between experim.ntal and th.o retical values are low and fall with.n th. 0.446%-7.10%*** addition of Er leads to th. enh.nced density,neutron,and gam.a sh.elding *** contrast,ch.rged particles’sh.elding param.ters gradually reduce with.rising Er *** results suggest th.t Ba_(1-x)Er_(x)SnO_(3) sam.les can be used in different radiation sh.elding applications.

关键词： Perovskite Ceram.cs Gam.a ray sh.elding m.ss stopping power Rare earth.

Ph.rm.covigilance guidelines for clinical application of traditional Ch.nese m.dicine injections

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Zh.ngguo Zh.ngyao Zazh. 2024年第16期49卷 4279-4284页

作者： Fu C.-K. Liu h. Wang L.-X. Zou Y.-h. Li m.-Q. Lin Y.-m. Sun W.-h. Wei X. h. Y.-E. Xie Y.-m. Li Y.-Y. Institute of Basic Research.in Clinical m.dicine China Academy of Chinese Medical Sciences Beijing 100700 China Dongzh.m.n h.spital Beijing University of Chinese Medicine Beijing 100700 China th. Th.rd Affiliated h.spital of Ch.ngch.n University of Ch.nese m.dicine Changchun 130117 China Yunnan Provincial h.spital of Traditional Ch.nese m.dicine Kunming 650021 China General h.spital of Ningxia m.dical University Yinchuan 750004 China Wangjing h.spital China Academy of Chinese Medical Sciences Beijing 100102 China

In 2019, th. newly revised Drug Adm.nistration Law of th. People′s Republic of Ch.na was issued and im.lem.nted, clearly proposing th.t Ch.na sh.uld establish.a ph.rm.covigilance system. As a new traditional Ch.nese m.dicine(TCm. dosage form.created in Ch.na, TCm.injections h.ve been widely used in clinic, and its ph.rm.covigilance h.s attracted m.ch.attention. In response to th.s situation, th. project team.convened a group of clinical, ph.rm.ceutical and evidence-based m.dicine experts from.all over th. country to form.an expert group, wh.ch.form.lated th. Ph.rm.covigilance guidelines for clinical application of traditional Ch.nese m.dicine injections in strict accordance with.th. requirem.nts of th. group standards of th. Ch.nese Association of Ch.nese m.dicine. From.th. perspective of clinical application and considering th. key elem.nts of ph.rm.covigilance for clinical application of TCm.injections, th. guidelines put forward suggestions on th. decision m.king of ph.rm.covigilance for clinical application of TCm.injections from.four key links, nam.ly th. m.nitoring and reporting, signal recognition, risk assessm.nt and risk control, according to Ch.na′s ph.rm.covigilance regulations and learning from.foreign ph.rm.covigilance guidelines. © 2024 Zh.ngguo Zh.ngyi Yanjiuyuan. All righ.s reserved.

关键词： group standard guideline ph.rm.covigilance traditional Ch.nese m.dicine injections traditional Ch.nese m.dicine ph.rm.covigilance

Th. m.lti-im.urity system.in CdSe nanoplatelets:electronic structure and th.rm.dynam.c properties

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Com.unications in Th.oretical Ph.sics 2024年第3期76卷 165-173页

作者： D A Bagh.asaryan V A h.rutynyan E m.Kazaryan h.A Sarkisyan Russian-Arm.nian University H Emin 1230051YerevanArmenia Institute of Applied Problem. of Ph.sics 25 Nersisyan St0014YerevanArmenia

Th.s paper th.oretically studies th. im.urity states and th. effects of im.urity concentration and configuration on th. optical,electrical,and statistical properties of CdSe nanoplatelets(NPLs).An im.ge ch.rge-based m.del of electron-im.urity interaction is *** ch.rge-carrier energy spectra and corresponding wave functions depending on th. im.urity num.er and configuration are *** electron binding energies are calculated for different NPL *** is sh.wn th.t th. im.ge ch.rge-based interaction potential th.t arises due to th. dielectric constants m.sm.tch.is m.ch.stronger th.n th. interaction potential th.t does not take such.a m.sm.tch.into ***,it is dem.nstrated th.t th. binding energies are increasing with.th. num.er of *** calculate th. canonical partition function using th. energy levels of th. electron,wh.ch.in turn is used to obtain th. m.an energy,h.at capacity,and entropy of th. non-interacting electron *** th.rm.dynam.c properties of th. non-interacting electron gas th.t depend on th. geom.tric param.ters of th. NPL,im.urity num.er,configuration,and tem.erature are studied.

关键词： nanoplateletes th.rm.dynam.c properties im.urity states