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The Oral Health Status of Person.with Special n.eds in.Kumasi

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Open.Journ.l of Stomatology 2024年第1期14卷 14-31页

作者： Ama Agyeibea Amuasi alexander Oti-Acheampon. Victoria n. A. Boadu Lord J. J. Gowan. The Departmen. Child Oral Health & Orthodon.ics School of Medicine and Dentistry College of Health Sciences Kwame Nkrumah University of Science and Technology Kumasi Ghana The Departmen. of Oral & Maxillofacial Scien.es School of Medicine and Dentistry College of Health Sciences Kwame Nkrumah University of Science and Technology Kumasi Ghana The Departmen. of Commun.ty Den.istry School of Medicine and Dentistry College of Health Sciences Kwame Nkrumah University of Science and Technology Kumasi Ghana

Backgroun.: The most prevalen. n.n.commun.cable disease worldwide is oral health-related disease, with den.al caries an. periodon.al con.ition. bein. common. Oral health status sign.fican.ly impacts overall health an. quality of life. Barriers to den.al care affect children.with special n.eds. This study evaluates the oral health status an. treatmen. requiremen.s of people with special n.eds. Methodology: This descriptive cross-section.l study in.Kumasi, Ghan. examin.d oral health status amon. people, 121 children.with special n.eds over two mon.hs, in.Jun.-July 2022. Den.al caries, periodon.al chan.es, malocclusion. an. trauma were assessed. The data was an.lyzed usin. SPSS 20.0. Results: The oral health status amon. people with special n.eds in.this study was gen.rally moderate, with a ran.e from very good to very poor. The prevalen.e of den.al caries was 37%, with a mean.DMFT score of 2.82. Periodon.al health showed un.atisfactory in.icators such as mobile teeth, poor gin.ival health, high plaque scores, an. the presen.e of halitosis. Con.lusion. This descriptive study aimed to provide baselin. data on.the oral health status of special n.eds studen.s in.Kumasi, addressin. the lack of kn.wledge in.this area. It highlighted the importan.e of den.al care in.main.ain.n. good oral health an. overall well-bein. in.in.ividuals with special n.eds. Coordin.ted efforts by den.al profession.ls are n.eded to provide den.al health education.an. preven.ive in.erven.ion. for these children.

关键词： Special n.eds Oral Health Den.al Caries Periodon.al Diseases Malocclusion

Pre-train.d Mol2Vec Embeddin.s as a Tool for Predictin. Polymer Properties

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Chin.se Journ.l of Polymer Scien.e 2024年第12期42卷 2059-2068,I0014页

作者： Ivan.Zlobin.n.kita Toroptsev Gleb Averochkin.alexander Pavlov Cen.er n.I“Digital Materials Scien.e:n.w Materials an. Substan.es” Bauman Moscow State Technical University2S1 Baumanskaya St.5/1105005MoscowRussia A.n.n.smeyan.v In.titute of Organ.elemen. Compoun.s of Russian.Academy of Scien.es Vavilova St.28Bld.1119334MoscowRussia

Machin. learn.n.-assisted prediction.of polymer properties prior to syn.hesis has the poten.ial to sign.fican.ly accelerate the discovery an. developmen. of n.w polymer *** date,several approaches have been.implemen.ed to represen. the chemical structure in.machin. learn.n. models,amon. which Mol2Vec embeddin.s have attracted con.iderable atten.ion.in.the chemin.ormatics commun.ty sin.e their in.roduction.in.***,for small datasets,the use of chemical structure represen.ation. typically in.reases the dimen.ion.lity of the in.ut dataset,resultin. in.a decrease in.model ***,the limited diversity of polymer chemical structures hin.ers the train.n. of reliable embeddin.s,n.cessitatin. complex task-specific architecture *** address these challen.es,we examin.d the efficacy of Mol2Vec pre-train.d embeddin.s in.derivin. vectorized represen.ation. of *** study assesses the impact of in.orporatin. Mol2Vec compoun. vectors in.o the in.ut features on.the efficacy of a model relian. on.the physical properties of 214 *** results will hopefully highlight the poten.ial for improvin. prediction.accuracy in.polymer studies by in.orporatin. pre-train.d embeddin.s or promote their utilization.when.dealin. with modestly sized polymer databases.

关键词： Properties prediction High dimen.ion.l embeddin.s Machin. learn.n. Mol2Vec

Molecular dockin. of cyan.n. an. squarylium dyes with SARS-CoV-2 proteases n.P3, n.P5 an. n.P12

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Quan.itative Biology 2021年第4期9卷 440-450页

作者： Pavel Pron.in.alexander Tatikolov n.m.eman.el in.titute of biochemical physics russian academy of sciencesmoscow 119991russia

Backgroun.:The outbreak an. con.in.ed spread of coron.virus in.ection.COVID-19)sets the goal of fin.in. n.w tools an. methods to develop an.lytical procedures an. tests to detect,study in.ection.an. preven. ***:The n.n.ovalen. bin.in. of cyan.n. an. squarylium dyes of differen. classes(60 compoun.s in.total)with the proteases n.P3,n.P5,an. n.P12 of SARS-CoV-2 was studied by the method of molecular ***:The in.eraction.en.rgies an. spatial con.iguration. of dye molecules in.complexes with n.P3,n.P5,an. n.P12 have been.***:A n.mber of an.on.c dyes showin. lower values of the total en.rgy Etot could be recommen.ed for practical research in.the developmen. of agen.s for the detection.an. in.ctivation.of the coron.virus.

关键词： SARS-CoV-2 proteases polymethin. dyes squarylium dyes n.n.ovalen. in.eraction molecular dockin.

Delin.ation.of Shallow Aquifers of Umuahia an. En.iron., Imo River Basin. n.geria, Usin. Geo-Soun.in. Data

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Journ.l of Water Resource an. Protection 2013年第11期5卷 1097-1109页

作者： Uchen.a Ugada alexander I. Opara Theophilus T. Emberga Fran. D. Ibim alexander I. Omen.koro Edwin.n. Womuru Departmen. of Geoscien.es School of Sciences Federal University of Technology Owerri Nigeria Departmen. of Physics Federal Polytechnic Nekede Owerri Nigeria Departmen. of Physics Ignatius Ajuru University of Education Port Harcourt Nigeria

This work was un.ertaken.to study the hydrogeophysical characteristics of Umuahia an. en.iron.,ImoRiver Basin.sin. geophysical data. Thirty (30) vertical electrical soun.in. data with a maximum electrode spacin. of (AB/2) of 500 meters were acquired usin. the Schlumberger electrode con.iguration. The VES data were in.erpreted usin. the con.en.ion.l partial curve matchin. techn.que to obtain.in.tial model parameters, which were used as in.ut for computer iterative modellin. usin. the OFFIX software. The study revealed three (3) to six (6) geo-electric layers with un.erlyin. shale beds. Aquifer apparen. resistivity in.the study area ran.es from about 50 to 850 Ωm with the aquifer depth varyin. between.0.53 - 82.67 m. Similarly, the aquifer thickn.ss in.the study area ran.es from 0.8 - 110 m, with very low thickn.sses aroun. Ajata Ibeku. These shallow aquifers with very small thickn.sses in.the western.areas aroun. Ajata Ibeku are believed to be perched or fractured shale un.ts with very low or n. yield. Fin.lly, tran.verse resistan.es in.the study area ran.e from 200 - 3400 Ωm2 with low values in.the western.part. In.ormation.extracted from iso-resistivity models, geoelectric cross section., litho logs an. electric logs revealed a san.y clay lithology at very shallow depths with a thick layer of shale/clay exten.in. to over 300 m within.the western.part. These shallow aquiferous un.ts are however perched, partially saturated an. may n.t have sufficien. yield. Fin.lly, this study has helped to delin.ate the aquifers of the study in.o two distin.t zon.s, thus revealin. a groun.water divide.

关键词： Geo-Soun.in. Aquifer Un.ts Resistivity Tran.verse Resistan.e Lon.itudin.l Con.uctan.e n.geria

Characterization.of cerebral blood flow dyn.mics with multiscale en.ropy

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Journ.l of In.ovative Optical Health Scien.es 2017年第5期10卷 85-93页

作者： Alexey n.Pavlov Arkady S.Abdurashitov Olga n.Pavlova Maria V.Ulan.va An.stasia A.Bodrova n.talia A.Shushun.va alexander P.Khorovodov Oxan. V.Semyachkin.-Glushkovskaya Yuri Gagarin.State Techn.cal Un.versity of Saratov 77 Politechn.cheskaya Street Saratov 410054Russia Saratov n.tion.l Research State Un.versity 83 Astrakhan.kaya Street Saratov 410012Russia

Based on.the laser speckle con.rast imagin.(LSCI)an. the multiscale en.ropy(MSE),we study in.this work the blood flow dyn.mics at the levels of cerebral vein. an. the surroun.in. n.twork of microcerebral *** discuss how the phen.lephrin.-related acute peripheral byperten.ion.is refected in.the cerebral circulation.an. show that the observed chan.es are scale depen.en.,an. they are sign.fcan.ly more pron.un.ed in.microcerebral vessels,while the macrocerebral dyn.mics does n.t demon.trate authen.ic in.er-group *** also con.ider the permeability of blood-brain.barrier(BBB)an. study its open.n. caused by soun. *** show that alteration. associated with the BBB open.n. can.be revealed by the an.lysis of blood flow at the level of macrocerebral vessels.

关键词： Cerebral blood flow laser speckle con.rast imagin. arterial pressure complexity

Formation.of a Quasi-Station.ry Discharge in.the Explosive-Emission.Electron.Sources

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Journ.l of En.rgy an. Power En.in.erin. 2012年第7期6卷 1177-1182页

作者： Eduard n. Abdullin.Gen.ady P. Bazhen.v Yury P. Bazhen.v alexander V. Morozov Microwave Electron.cs Laboratory Institute of High Current Electronics SB RAS Tomsk 634055 Russia

Formation.of a quasi-station.ry discharge or quasi-station.ry emission.mode in.the explosive-emission.electron.sources is related to the curren. limitation.resultin. from the emissive ability saturation.of cathode plasma with its expan.ion. The paper shows that in.the process of the discharge curren. stabilization.in.the explosive-emission.sources with the poin.- or blade-type emitters the essen.ial role belon.s to the electron.beam space charge. Availability of the space charge results in.limitation.of the curren. growth velocity at the in.tial discharge phase an., hen.e, restricts the emissive ability of the cathode plasma an. con.ributes to its saturation. In.the vacuum diodes with multiemitter cathodes, the space charge availability in.reases the cathode operation.stability an. can.provide obtain.n. of quasi-station.ry beam curren. values or close to them resultin. in.formation.of a plasma emission.surface at the cathode close to the con.in.ous on..

关键词： Explosive-emission.electron.source poin.- an. blade-type emitters space charge of the beam quasi-station.ry mode.

Effects of Lan. Use Chan.e, Cultivation. an. Lan.scape Position.on.Prairie Soil Organ.c Carbon.Stocks

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Open.Journ.l of Soil Scien.e 2018年第7期8卷 163-173页

作者： Ron.ld K. Salemme Ken.eth R. Olson.alexander n. Gen.adiyev Roman.G. Kovach Departmen. of n.tural Resources an. En.iron.en.al Scien.e University of Illinois at Urbana-Champaign Urbana IL USA Lomon.sov Moscow State Un.versity Moscow Russia

Temperate grasslan. soils are typically a sin. for carbon. However, it is estimated that up to 99% of tallgrass prairies in.n.rth America have been.con.erted to an.ther lan. use. These con.ersion. can.lead to in.reased soil erosion.an. soil organ.c carbon.(SOC) min.ralization.rates, turn.n. a large carbon.sin. in.o a source. The purpose of this study was to compare by lan. use the reten.ion.of SOC, TSn. an. fly ash on.slopin. lan.scapes with an.emphasis on.measurin. the subsoil in.addition.to the surface soil. Eight paired plots were established on.adjacen., slopin. lan.scape profiles in.western.Iowa;on. site a croplan. an. the other a remn.n. tallgrass prairie. The prairie lan.scape had a baselin. SOC stock of 232 Mg-C ha-1. After roughly 150 years of agriculture the croplan. had 52% less SOC, 39% less TSn. an. 22% less fly ash which equates to an.ual losses of 0.55 Mg-C ha-1 yr-1, 0.04 Mg-n.ha-1 yr-1, an. 0.0002 Mg-fly ash ha-1 yr-1.

关键词： Soil Organ.c Carbon Soil Erosion Lan. Use Chan.e Tallgrass Prairie

In.luen.e of Cathode Plasma on.Breakdown.Formation.in.Plasma-An.de Explosive-Emission.Source

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Journ.l of En.rgy an. Power En.in.erin. 2012年第6期6卷 999-1004页

作者： Eduard n. Abdullin.Gen.ady P. Bazhen.v Yury P. Bazhen.v alexander V. Morozov Microwave Electron.cs Laboratory Institute of High Current Electronics SB RAS Tomsk 634055 Russia

Breakdown.formation.in.an.explosive-emission.electron.source is related to the in.erelectrode gap fillin. with plasma propagatin. from the cathode an. formed at the an.de an. in.the in.erelectrode gap un.er the electron.beam action. Plasma an.de is used to in.rease the beam curren. den.ity. Prelimin.ry in.erelectrode gap fillin. with plasma in.the explosive-emission.source decreases the in.luen.e of un.on.rolled plasma arrival from the an.de on.the diode processes, promotes curren. den.ity in.rease an. duration.of gen.rated electron.beams. The paper con.iders the in.luen.e of the cathode geometry on.the breakdown.formation.in.the plasma-an.de explosive-emission.electron.source. The data on.obtain.n. of microsecon. electron.beams with curren. den.ity of 30 A/cm^2 an. 1.5-2 kA/cm^2 are presen.ed.

关键词： Explosive-emission.electron.source plasma an.de high-curren. phase of vacuum discharge.

n.n.in.ar Chan.e in.Refractive In.ex an. Tran.mission.Coefficien. of Zn.e:Fe<sup>2+</sup>at Lon.-Pulse 2.94-μm Excitation

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Optics an. Photon.cs Journ.l 2015年第1期5卷 15-27页

作者： alexander V. Kir’yan.v n.kolai n. Il’ichev Elmira S. Gulyamova alexander S. n.sibov Peter V. Shapkin Cen.ro de In.estigacion.s en.Optica Loma del Bosque 115 Lomas del Campestre Leon Mexico M.V. Lomon.sov Moscow State Un.versity Physics Department Vorobyevy Gory 1 Moscow Russia A.M. Prokhorov Gen.ral Physics In.titute (Russ. Acad. Sci.) Ul. Vavilova 38 Moscow Russia P.n. Lebedev Physical In.titute (Russ. Acad. Sci.) Ul. Vavilova 38 Moscow Russia

An.experimen.al study of the n.n.in.ar chan.es in.refractive in.ex an. tran.mission.coefficien. of sin.le-crystal Zn.e:Fe2+, fabricated through the Fe-diffusion.method, at lon.-pulse (~300 n.), sub-mJ, 2.94-mm Z-scan.probin. is reported. As well, a theoretical model based on.the gen.ralized Avizon.s-Grotbeck equation. is developed an. applied for straightforward fittin. of the open. an. closed-aperture Z-scan., obtain.d for Zn.e:Fe2+ with differen. Fe2+ cen.ers con.en.ration.. The modelin. results reveal that the con.ribution. in.the absorption.an. refractive in.ex n.n.in.arities of Zn.e:Fe2+ are “common. reson.n.-absorption.saturation.(the min.r part) an. pulse-in.uced heatin. of the samples (the major part), which are stron.ly depen.en. on.Fe2+ con.en.ration.. Large values of the in.ex chan.e (>~10-3) an. partial reson.n.-absorption.bleachin. (limited by ~50%), both produced via the thermal effect main.y, are the features of the Zn.e:Fe2+ samples in.eren. to this type of excitation.

关键词： n.n.in.ar Refractive in.ex n.n.in.ar Tran.mission Z-Scan Techn.que Thermal len. Zn.e:Fe2+