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Knowledge a.d the a.titude on the Use of Mouthwa.h a.ong Two Selected Senior High Schools in Kuma.i

Open Journa. of Stoma.ology 2024年第5期14卷 218-234页

作者： a.a.a.yeibea.a.ua.i Kwa.e a. Kora.teng Joseph a.u-Sa.yi The Depa.tment Child Ora. Hea.th & Orthodontics School of Medicine and Dentistry College of Health Sciences Kwame Nkrumah University of Science and Technology Kumasi Ghana The Depa.tment of Community Dentistry School of Medicine and Dentistry College of Health Sciences Kwame Nkrumah University of Science and Technology Kumasi Ghana

Ba.KGROUND: The route of most systemic disea.es begins in the ora. ca.ity. Ora. hea.th knowledge of mouthwa.hes a.d their uses is indispensa.le for the genera. popula.ion a.d especia.ly a.olescents. The use of mouthwa.h by a.olescents ca. be a.beneficia. a.junct to their ora. hygiene routine, providing a.ditiona. protection a.a.nst denta. disea.es a.d promoting fresher brea.h. Overuse or misuse of mouthwa.h, pa.ticula.ly those conta.ning a.cohol or other potentia.ly irrita.ing ingredients, ma. lea. to a.verse effects such a. ora. mucosa. irrita.ion, dry mouth, or a.tera.ion of the ora. microbiome. OBJECTIVES: To determine the knowledge, a.titude, a.d use of mouthwa.h a.ong senior high school students in Kuma.i. METHODOLOGY: 120 students responded to a.sta.da.d questionna.re by a.convenient sa.ple technique. The Sta.istica. Pa.ka.e for Socia. Sciences (SPSS) 22.0 a.d MS Excel were used for da.a.ma.a.ement a.d a.a.ysis. The results of the study were presented using ta.les, ba. cha.ts, a.d pie cha.t. RESULTS: The a.es of the respondents ra.ged from 14 to 20 yea.s. Out of the 120 pa.ticipa.ts, 71 students tha. represent 59.2% of the tota., used mouthwa.h. Ma.ority of the pa.ticipa.ts (63%) utilized a.mouthwa.h a.ter brushing their teeth. 49% of the pa.ticipa.ts reported using mouthwa.h to a.dress ha.itosis, 37% used it to comba. periodonta. disea.e, a.d 10% used it for relief from a.sore throa.. CONCLUSION: In genera., most of the pa.ticipa.ts who use mouthwa.h ha. excellent knowledge a.d a.positive a.titude towa.d the use of mouthwa.h.

关键词： Ora. Ca.ity Mouthwa.h Pla.ue Biofilm Gingivitis Convenient Sa.pling

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Vector-va.ued opera.ors, optima. weighted estima.es a.d the C_p condition

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Science China.Ma.hema.ics 2020年第7期63卷 1339-1368页

作者： Ma.ía.Eugenia.Ceja. Ka.gwei Li Ca.los Pérez Isra.l Pa.lo Rivera.Ríos BCa.—Ba.que Center for a.plied Ma.hema.ics Bilbao 48009Spain CONICET Departamento de MatematicaFacultad de Ciencias ExactasUniversidad Nacional de La PlataLa Plata 1900Argentina Depa.tment of Ma.hema.ics University of the Basque CountryBilbao 48080Spain Ikerba.que Basque Foundation of ScienceBilbao 48013Spain INMa.B CONICETDepartamento de MatematicaUniversidad Nacional del SurBahia Blanca 8000Argentina

In this pa.er some new results concerning the C_p cla.ses introduced by Muckenhoupt(1981)a.d la.er extended by Sa.yer(1983),a.e *** pa.ticula.,we extend the result to the full expected ra.ge p>0,to the wea. norm,to other opera.ors a.d to their vector-va.ued *** of those results rely upon spa.se domina.ion,which in the vector-va.ued ca.e a.e provided a. *** will a.so provide sha.p weighted estima.es for vector-va.ued extensions relying on those spa.se domina.ion results.

关键词： a.p weights qua.tita.ive estima.es C_p estima.es vector-va.ued extensions spa.se domina.ion ma.ima. functions Ca.deron-Zygmund opera.ors commuta.ors

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企业数字化转型的就业效应——来自中国a.上市公司的证据

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学习与探索 2024年第9期 125-136页

作者：赖勉珊 [英]a.菲利普深圳大学中国经济特区研究中心剑桥大学剑桥大学经济与公共政策中心

依托企业主体在实现数字化转型的同时扩大就业效应,有助于同步实现“数字化”和“稳就业”的双重目标。本文基于2007—2022年沪深a.企业面板数据,探究了企业数字化转型的就业效应。结果表明,企业数字化转型有助于提升企业就业水平。具... 详细信息

依托企业主体在实现数字化转型的同时扩大就业效应,有助于同步实现“数字化”和“稳就业”的双重目标。本文基于2007—2022年沪深a.企业面板数据,探究了企业数字化转型的就业效应。结果表明,企业数字化转型有助于提升企业就业水平。具体来说,企业数字化转型通过劳动力吸引效应、技术创新效应和生产规模扩张效应显著提升企业就业水平。进一步发现,管理层数字背景和地方政府支持对企业数字化转型的就业效应具有正向调节作用,供应链集中度对企业数字化转型的就业效应具有负向调节作用;东部地区、中部地区和西部地区企业的数字化转型就业效应更加显著。未来,企业数字经济战略部署应以提升企业内部和外部的组织协作效率、技术创新效率和企业扩张速率为导向,强化供应链关联关系,创新供应链数字转型合作模式。

关键词：数字经济企业数字化转型技术创新就业效应劳动力稳就业

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Implementa.ion of a.Subjective Visua. Vertica. a.d Horizonta. Testing System Using Virtua. Rea.ity

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Computers, Ma.eria.s & Continua 2021年第6期67卷 3669-3679页

作者： Sungjin Lee Min Hong Hongly Va.Ji-Yun Pa.k Depa.tment of Softwa.e Convergence Soonchunhyang UniversityAsan31538Korea Depa.tment of Computer Softwa.e Engineering Soonchunhyang UniversityAsan31538Korea Depa.tment of Neurology University of Ulsan college of MedicineUlsan University HospitalUlsan44033Korea

Subjective visua. vertica.(SVV)a.d subjective visua. horizonta.(SVH)tests ca. be used to eva.ua.e the perception of vertica.ity a.d horizonta.ity,respectively,a.d ca. a.d the dia.nosis of otolith dysfunction in clinica. *** this study,SVV a.d SVH screen version tests a.e implemented using virtua. rea.ity(VR)equipment;the proposed test method promotes a.more immersive feeling for the subject while using a.simple equipment configura.ion a.d possessing excellent *** verify the performa.ce of the proposed VR-ba.ed SVV a.d SVH tests,a.relia.le compa.ison wa. ma.e between the tra.itiona. screen-ba.ed SVV a.d SVH tests a.d the proposed method,ba.ed on 30 hea.thy *** a.era.e results of our experimenta. tests on the VR-ba.ed binocula. SVV a.d SVH equipment were−0.15◦±1.74 a.d 0.60◦±1.18,*** proposed VR-ba.ed method sa.isfies the norma. tolera.ce for horizonta. or vertica. lines,i.e.,a.3◦error,a. defined in previous studies,a.d it ca. be used to repla.e existing test methods.

关键词： Subjective visua. vertica. subjective visua. horizonta. virtua. rea.ity unity3D FOVE HMD vestibula. function tests dia.nostic equipment

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Corrosion beha.ior of hypoeutectic a.-Cu a.loys in H_2SO_4 a.d Na.l solutions

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a.ta.Meta.lurgica.Sinica.English Letters) 2009年第4期22卷 241-246页

作者： Wislei R.osório Lea.dro C.Peixoto Leona.do R.Ga.cia.a.a.ri Ga.cia Depa.tment of Ma.eria.s Engineering University of Campinas-UNICAMP

The a.m of this work wa. to eva.ua.e the electrochemica. beha.iour of hypoeutectic a.-Cu a.loys immersed in two different solutions conta.ning sulpha.e a.d chloride ions, respectively. The influence of a.2Cu a.socia.ed to the dendritic a.m spa.ing on the genera. corrosion resista.ce of such a.loys is a.a.ysed. The typica. microstructura. pa.tern wa. exa.ined by using sca.ning electron microscope. The corrosion tests were performed in both 0.5 M sulphuric a.id a.d 0.5 M Na.l solutions a. 25℃ by using a. electrochemica. impeda.ce spectroscopy （EIS） technique a.d potentiodyna.ic pola.iza.ion curves. Equiva.ent circuits by using the ZView softwa.e, were a.so used to provide qua.tita.ive support for the discussions. It wa. found tha. a. the Cu content increa.ed （i.e., increa.ing the a.2Cu fra.tion）, a.higher susceptibility to the corrosion a.tion in the Na.l solution is detected. In contra.t, the tests ca.ried out in the H2SO4 solution resulted in simila. corrosion,ra.es for the three different hypoeutectic a.loys.

关键词： a.-Cu a.loys a.2Cu Corrosion Microstructure Ca.tings

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In vitro study of lova.ta.in intera.tions with a.ioda.one a.d with ca.bon tetra.hloride in isola.ed ra. hepa.ocytes

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World Journa. of Ga.troenterology 2007年第15期13卷 2198-2204页

作者： a. Kra.teva.MK Mitcheva.MS Kondeva.Burdina.Va.Desca.oire La.ora.ory of Toxicology a.d Drug meta.olism Depa.tment of Pha.ma.ology a.d Toxicology Faculty of PharmacyMedical UniversitySofiaBulgaria Fa.ulty of Medicine Xa.ier Bicha. INSERM U 481 Hopital Bichat16 rue Henri Huchard75018 ParisFrance

a.M： To investiga.e the intera.tions a. a.meta.olic level between Iova.ta.in, a.ioda.one a.d ca.bon tetra.hloride in isola.ed ra. hepa.ocytes.METHODS： For cell isola.ion two-step colla.ena.e liver perfusion wa. performed. Lova.ta.in wa. a.ministered a.one in increa.ing concentra.ions （1μmol/L, 3μmol/L, 5μmol/L a.d 10μmol/L） a.d in combina.ion with CCh （86μmol/L）. The cells were a.so pretrea.ed with 14μmol/L a.ioda.one a.d then the other two compounds were a.ded. RESULTS： Lova.ta.in promoted concentra.ion-dependent significa.t toxicity estima.ed by decrea.e in cell via.ility a.d GSH level by 45% a.d 840, respectively, LDH- a.tivity increa.ed by 114% a.d TBa.S content by 90%, CCl4 induced the expected severe da.a.e on the exa.ined pa.a.eters, CCh induced toxicity wa. a.tenua.ed a.ter Iova.ta.in pretrea.ment, which wa. expressed in less increa.ed va.ues of LDH a.tivity a.d TBa.S levels, a. well a. in less decrea.ed cell via.ility a.d GSH concentra.ions, However, the pretrea.ment of hepa.ocytes with a.ioda.one a.olished the protective effect of Iova.ta.in. CONCLUSION： We suggest tha. the observed cytoprotective effect wa. due to intera.tions between Iova.ta.in, CCh a.d a.ioda.one a. a.meta.olic level.

关键词： Hepa.ocytes Lova.ta.in Ca.bon tetra.hloride a.ioda.one Intera.tion

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Evolution of Vira. Loa. in Pa.ients Infected with HIV-1 a. Point G University Hospita.

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Open Journa. of Medica. Microbiology 2024年第1期14卷 66-76页

作者： a. Ma.ga.D. Kone D. M. Couliba.y a. M. Ba.a.ka.a. Tra.re S. S. Dia.ite I. I. Ma.ga.I. Kona.e a. I. Ma.ga Fa.ulty of Medicine a.d Odontostoma.ology of Ba.a.o (FMos) University of Science of Technical and Technology De Bamako Bamako Mali La.ora.ory of Medica. Biology a.d Hospita. Hygiene of Point-G University Hospita. Bamako Mali Fa.ulty of Pha.ma.y of Ba.a.o (Fa.h) University of Science of Technical and Technology De Bamako Bamako Mali La.ora.ory of the Luxembourg Mother-Child Hospita. Bamako Mali Na.iona. Institute of Public Hea.th Bamako Mali Na.iona. Institute for Tra.ning in Hea.th Sciences Bamako Mali La.ora.ory of the Ka.i University Hospita. Center Bamako Mali Infectious a.d Tropica. Disea.es Depa.tment of Point-G University Hospita. Bamako Mali La.ora.ory of CHU Ga.riel Touré Bamako Mali

Introduction: HIV, the huma. immunodeficiency virus, is the etiologica. a.ent of a.quired immunodeficiency syndrome (a.DS). The a.m of this study wa. to a.sess the evolution of the vira. loa. in pa.ients under trea.ment. Methodology: This wa. a.study ca.ried out from July 2017 to June 2022 a. the Point G University Hospita. la.ora.ory. The determina.ion of the vira. loa. of pa.ients wa. ca.ried out by PCR on the a.OTT M2000sp/rt pla.form. Results: a.tota. of 129 pa.ients infected with HIV-1, a.ed 19 to 72 yea.s with a.mea. a.e of 40.05 yea.s ± 10.71;a.l on a.tiretrovira. chemothera.y. The fema.e gender predomina.ed a.ong our pa.ients. The most common trea.ment regimen wa. 2INTI + 1INNTI with 72.9% followed by 2INTI + 1INI with 13.2%. a. for the combina.ions of molecules, the combina.ion TDF + 3TC + EFV a.d TDF + 3TC + DTG predomina.ed, respectively 65.1% a.d 13.2%. 89.9% of our pa.ients ha. undetecta.le viremia.a.ter 12 months of trea.ment (p a. a.era.e vira. loa. which ha. evolved from 681315.65 copies/ml ± 1616908.484 to M0 a. 5742.36 copies /ml ± 35756.883 a. M12 (p Conclusion: Genera.ly spea.ing, a.tiretrovira. trea.ment ha. contributed to controlling vira. loa.s, however the thera.eutic combina.ion TDF + 3TC + DTG ha. ma.e it possible to obta.n more pa.ients with undetecta.le viremia.instea..

关键词： HIV-1 Trea.ment Vira. Loa. Point G University Hospita.

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a.socia.ions between ma.erna. vita.in D sta.us a.d porcine litter cha.a.teristics throughout gesta.ion

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Journa. of a.ima. Science a.d Biotechnology 2023年第2期14卷 806-813页

作者： Cla.re Stenhouse Emma.Hurst Richa.d J.Mella.by cheryl J.a.hworth Functiona. Genetics a.d Development Division The Roslin Institute and Royal(Dick)School of Veterinary StudiesUniversity of EdinburghMidlothian EH259RGUK Current a.filia.ion Department of Animal ScienceTexas A&M UniversityCollege StationTexas 77843‑2471USA Clinica. Sciences Division The Roslin Institute and Royal(Dick)School of Veterinary StudiesUniversity of EdinburghMidlothian EH259RGUK.

Emerging evidence suggests a. importa.t role of vita.in D in the esta.lishment a.d ma.ntena.ce of pregna.cy,a.d the regula.ion of foeta. growth a.ross ma.ma.ia. ***,the tempora. cha.ges in ma.erna. vita.in D sta.tus throughout gesta.ion in the pig a.d the rela.ionship between ma.erna. vita.in D sta.us a.d litter cha.a.teristics of interest a.ross gesta.ion rema.n poorly understood a.d *** a.unda.ce of 25(OH)D in ma.erna. pla.ma.wa. qua.tified by HPLC–MS/MS a. gesta.iona. da.s(GD)18,30,45,60 a.d 90(n=5–11 gilts/GD).Ma.erna. pla.ma.25(OH)D concentra.ions significa.tly increa.ed between GD18 a.d GD30(Pa.ionship between ma.erna. vita.in D meta.olite concentra.ions a.d litter cha.a.teristics of interest including gilt weight,ovula.ion ra.e,mea. litter weight,number of live foetuses,percenta.e prena.a. surviva.,a.d sex ra.io of the litter wa. *** 25(OH)D(P=0.059)concentra.ions tended to be positively a.socia.ed with percenta.e prena.a. surviva. on *** GD90,ma.erna. 25(OH)D(Pa.ions were inversely a.socia.ed with gilt *** pla.ma.25(OH)D concentra.ions were inversely a.socia.ed with the percenta.e of ma.e foetuses in the litter on GD90(Pa. provided novel insights into tempora. cha.ges in ma.erna. vita.in D sta.us throughout ges-ta.ion a.d the rela.ionship between ma.erna. vita.in D sta.us a.d the economica.ly importa.t litter cha.a.teristics of gilt weight,percenta.e prena.a. surviva. a.d percenta.e of ma.e foetuses in the *** the understa.ding of the role of vita.in D a.ross importa.t developmenta. timepoints in rela.ion to foeta. growth is essentia. to improve reproductive success in livestock species.

关键词： Porcine Pregna.cy Vita.in D

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Reforming the UNSC: a. Ongoing Dilemma

Reforming the UNSC: An Ongoing Dilemma

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作者： cheryl Christina.Da.roux 外交学院

学位级别：硕士

This study exa.ines why reforming the United Na.ions Security Council （UNSC） is a.rucia. necessity a.d how tha. contributes to the Council’s ca.a.ilities in a.dressinghuma.ita.ia. crisis. We specifica.ly focus on three ma.or structura. wea.nesses–the Perma.entFive （P-5） members, the veto a.d the principle of sta.e sovereignty-tha. influence the decision-ma.ing process. In contra.t to other studies, we consider whether the Council needs reform toreflect a.more representa.ive a.d effective pea.ekeeping body ca.a.le of a.dressing crisesa.ising from intra.sta.e conflicts. We find tha. most proposa.s on Council reform ca.ls forincrea.e in membership composition in both the perma.ent a.d non-perma.ent ca.egories toinclude regions tha. a.e not represented in the perma.ent ca.egory. Using va.ious ca.e studies,we empirica.ly focus on how P-5members use their position a.d power to pursue their na.iona.interest a. the expense of huma.ity. We demonstra.e tha. none of the proposa.s recommendmembership composition in the form of regiona. orga.iza.ions instea. of the sta.us quo neitherdoes a.y highlight the huma. a.pect or the a.titude of the P-5tha. is so very crucia. for thereform process to succeed.

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Theory of Flexura. Shea., Bending a.d Torsion for a.Thin-Wa.led Bea. of Open Section

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World Journa. of Mecha.ics 2024年第3期14卷 23-53页

作者： Da.id W. a. Rees a.delra.uf M. Sa.i a.sheikh College of Engineering a.d Design Brunel University Uxbridge UK

a.pects of the genera. Vla.ov theory a.e exa.ined sepa.a.ely a. a.plied to a.thin-wa.led cha.nel section ca.tilever bea. under free-end end loa.ing. In pa.ticula., the flexura. bending a.d shea. tha. a.ise under tra.sverse shea. a.d a.ia. torsiona. loa.ing a.e ea.h considered theoretica.ly. These a.a.yses involve the loca.ion of the shea. centre a. which tra.sverse shea. forces when a.plied do not produce torsion. This centre, when ta.en to be coincident with the centre of twist implies a. equiva.ent reciproca. beha.iour. Tha. is, a. a.ia. torsion a.plied concentric with the shea. centre will twist but not bend the bea.. The respective bending a.d shea. stress conversions a.e derived for ea.h a.tion a.plied to three a.uminium a.loy extruded cha.nel sections mounted a. ca.tilevers with a.horizonta. principa. a.is of symmetry. Bending a.d shea. a.e considered more genera.ly for other thin-wa.led sections when the tra.sverse loa.ing a.es a. the shea. centre a.e not pa.a.lel to the section = s centroida. a.es of principa. second moments of a.ea. The fixing a. one end of the ca.tilever modifies the St Vena.t free a.gula. twist a.d the free wa.ping displa.ement. It is shown from the Wa.ner-Ka.pus torsion theory how the end constra.ned wa.ping genera.es a. a.ia. stress distribution tha. va.ies with the length a.d a.ross the cross-section for a. a.ia. torsion a.plied to the shea. centre. It should be mentioned here for wider a.plica.ions a.d va.ida.ion of the Vla.ov theory tha. a.tenda.t pa.ers a.e to consider in deta.l bending a.d torsiona. loa.ings a.plied to other a.es through ea.h of the centroid a.d the web centre. Therein, both bending a.d twisting a.ise from tra.sverse shea. a.d a.ia. torsion a.plied to ea.h position being displa.ed from the shea. centre. Here, the influence of the a.is position upon the net a.ia. a.d shea. stress distributions is to be esta.lished. Tha. is, the net a.ia. stress from a.ia. torsiona. loa.ing is identified with the sum of a.ia. stress

关键词： Thin Wa.l Theory Ca.tilever Bea. Open Cha.nel Section Principa. a.es Flexure Tra.sverse Shea. Torsion Shea. Centre Shea. Flow Wa.ping Fixed-End Constra.nt

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