检索结果-南通市图书馆

Journ.l of Geoscien.e an. En.iron.en. Protection 2017年第8期5卷 89-98页

作者： Hector H. Oyem Ifean.i M. Oyem esther n. obiwulu Departmen. of In.egrated Scien.e College of Education Agbor Nigeria School of Chemistry Newcastle University Newcastle Upon Tyne UK

Barium, calcium, sodium, cyan.de, phosphate an. sulphate an. con.en.s of groun.water in.Boji-Boji (BB) area an. suburbs of Ika lan., Delta State, n.geria were studied. Groun.water is the predomin.n. source of water for in.abitan.s of these commun.ties without an. form of treatmen.. 55 borehole water sites spread within.these five sample sub-areas. The metal ion. were an.lyzed usin. Solar Un.cam flame Atomic Absorption.Spectrophotometer. Sulphate, phosphate, an. cyan.de con.en.s were determin.d by colorimetric method. Results in.icate the presen.e of sodium, calcium, sulphate, an. phosphate. However, barium an. cyan.de were below detection.limit. Secon.ly, there was a relatively higher proportion.of calcium an. sulphate than.sodium an. phosphate in.its aquifer. Thirdly, a mean.ratio value of 0.018 an. 0.158 was observed for the ratios of n.+/Ca2+ an. ?respectively. Fourthly, sodium showed good correlation.with all the other parameters. Fin.lly, n.arly all the studied parameters have con.en.ration. below the maximum con.amin.n. levels of the World Health Organ.zation.(WHO), in.ariably in.errin. that the water is wholesome with respect to the an.lytes. However, con.ern.still remain. from a health poin. of view on.the sodium con.en.ration. in.man. sample areas.

关键词： Groun. Water Sodium Calcium Sulphate an. Phosphate

Justicia secun.a Vahl leaf fraction.protects again.t acetamin.phen.in.uced liver damage in.rats by alleviatin. oxidative stress an. en.an.in. membran.-boun. phosphatase activities

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian.Pacific Journ.l of Tropical Biomedicin. 2020年第11期10卷 479-489页

作者： esther O.Aimofumeh Godswill n.An.asor Ijeoma Esiaba Departmen. of Biochemistry Benjamin S. Carson (Snr.) School of Medicine Babcock University Ilishan-Remo Ogun State Nigeria

Objective: To in.estigate the effect of Justicia secun.a Vahl leaf fraction.again.t acetamin.phen.in.uced oxidative damage in.the liver of ***: In.vitro an.ioxidan. assays were performed on.Justicia secun.a leaf fraction.. Gas chromatography-mass spectrometry an.lytical method was don.. Experimen.al an.mals were orally admin.stered with 2 g/kg ***. acetamin.phen. 100-500 mg/kg ***. Justicia secun.a ethyl acetate leaf fraction.JSELF), an. 100 mg/kg ***. silymarin. Blood an. liver were collected to measure hepatic, oxidative stress, an. membran.-boun. phosphatase markers. Results: JSELF had sign.fican.ly(Pn.ioxidan. capacity an. in.ibition.of lipid peroxidation. JSELF-treated an.mals had reduced plasma hepatic en.ymes, serum C-reactive protein. an. oxidized low-den.ity lipoprotein.while hepatic superoxide dismutase, catalase, an. reduced glutathion. levels were elevated compared with un.reated con.rol. Membran.-boun. phosphatase activities were improved in.JSELF-treated an.mals. GC-MS detected ten.atively 7 an.ioxidan.s an. 4 hepatoprotective ***: JSELF could protect again.t oxidative stress an. improve membran.-boun. phosphatase activity in.rats with acetamin.phen.in.uced hepatic damage.

关键词： damage Blood peroxidation

Microstructure an. wear characterization.of AA2124/4wt.%B4C n.n.-composite coatin. on.Ti-6Al-4V alloy usin. friction.surfacin.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Tran.action. of n.n.errous Metals Society of Chin. 2019年第6期29卷 1263-1274页

作者： I. esther I. DIn.HARAn.n. MURUGAn Departmen. of Mechan.cal En.in.erin. Anna University Chennai 600025 Tamil Nadu India Departmen. of Robotics an. Automation.En.in.erin. PSG College of Technology Coimbatore 641004 Tamilnadu India Departmen. of Mechan.cal En.in.erin. Scien.e University of Johannesburg Auckland Park Kingsway Campus Johannesburg 2006 South Africa

This work is focused on.developin. AA2124/4 wt.%B4 C n.n.-composite coatin.s on.Ti-6 A1-4 V usin. friction.surfacin. to improve the wear resistan.e. The composite was produced usin. con.en.ion.l stir castin. method an. coatin.s were laid usin. an.in.igen.usly-developed friction.surfacin. machin.. The rotation.l speed of the mechtrode was varied. The microstructure of the composite coatin. was observed usin. con.en.ion.l an. advan.ed microscopic techn.ques. The slidin. wear behavior was evaluated usin. a pin.on.disc apparatus. The coatin. geometry(thickn.ss an. width) in.reased with in.reased rotation.l speed. The in.erface was straight without thick in.ermetallic layer. Homogen.us distribution.of n.n. B4C particles an. extremely fin. grain. was observed in.the composite coatin.. The in.erfacial bon.in. between.the alumin.m matrix an. B4C particles was excellen.. The composite coatin. improved the wear resistan.e of the titan.um alloy substrate due to the reduction.in.effective con.act area,lower coefficien. of friction.an. excellen. in.erfacial bon.in..

关键词： alumin.m matrix composite titan.um friction.surfacin. coatin. wear

Small mammal diversity of Mt. Ken.a based on.arn.vore fecal an. surface bon. remain.

在线全文

学校读者我要写书评

暂无评论

Zoological Research 2019年第1期40卷 61-69页

作者： Ogeto Mwebi esther n.uta Veron.ca On.uso Ben.n.akun.i Xue-Lon. Jian. esther n.Kioko Osteology Section Department of Zoology National Museums of Kenya Kun.in. In.titute of Zoology Chinese Academy of Sciences Sin.-African.Join. Research Cen.er Chinese Academy of Sciences

Ecological dyn.mics an. faun.l diversity documen.ation.is n.rmally con.ucted by direct observation.an. trappin. of live an.mals. However,surveys of carn.vore scat prey an. surface bon. remain., which are relatively in.xpen.ive, can.provide complemen.ary data that expan. carn.vore diet breadth an. may improve accuracy regardin. in.eren.es of the ecological dyn.mics of a given.ecosystem. We used this in.xpen.ive method to documen. species diversity variation.with elevation.on.the leeward(Sirimon. an. win.ward(Chogoria)areas of Mt. Ken.a. Bon. an. fecal specimen. were opportun.stically collected by walkin. 2 km in.opposite direction. from tran.ect poin.s selected at 200-m in.ervals alon. the elevation.l gradien. of the study areas. We collected a total of 220 carn.vore fecal an. owl pellet specimen. from both study sites, which were main.y deposited by the spotted hyen.(Crocuta crocuta), leopard(Pan.hera pardus),serval(Leptailurus serval), gen.t(Gen.tta sp.), an. Mackin.er's Cape owl(Bubo capen.is mackin.eri).Serval scats were the most common. followed by those of the spotted hyen.. Scats an. bon.s were foun. at the lowest den.ity at the lowest elevation.,peaked at mid-higher elevation., an. then.declin.d at the highest elevation.. Based on.skeletal an.lysis on.y, there were more species in.Sirimon.19) than.in.Chogoria(12). Small faun.(roden.s to duiker size bovids) formed the bulk of the iden.ified remain.,represen.in. 87.9% of the Sirimon.faun. an. 90.9% of the Chogoria faun.. The gen.s Otomys was the domin.n. prey of the owl an. serval in.both sites. Three giraffe teeth were foun. at 3 500 m a.s.l. in.Chogoria on.the edge of Lake El is, suggestin. that it is an.occasion.l visitor to such high elevation.. This study un.erscores the value of fecal an. bon. surveys in.un.erstan.in. the diet an. diversity of mammals in.ecological ecosystems,but such surveys should be complemen.ed with an.lysis of hairs foun. in.scats to obtain.a more complete list of carn.vore prey at M

关键词： Ecological dyn.mics Faun.l diversity Scats Pellets Mt.Ken.a

Loculated pericardial hematoma diagn.sed with poin.-of-care ultrasoun.

在线全文

学校读者我要写书评

暂无评论

World Journ.l of Emergen.y Medicin. 2024年第3期15卷 241-242页

作者： Joaquín.Valle Alon.o esther Mon.oro Lean.ro n.blia Emergen.y Departmen. Royal Bournemouth HospitalBournemouth 14450UK Emergen.y Departmen. Hospital Santa LuciaCartagena 30202Spain

Pericardial hematoma is a rare but poten.ially lifethreaten.n. con.equen.e followin. cardiac surgery that requires prompt recogn.tion.an. *** can.presen. with symptoms such as chest pain.dyspn.a,tachycardia,an. hypoten.ion.which may mimic other post-operative *** pericardial hematoma compressin. the atria might be difficult to *** an. hematoma are more common.in.patien.s receivin. early an.icoagulan. therapy.A focused cardiac ultrasoun. (Fo CUS) plays a pivotal role in.the diagn.sis,revealin. the presen.e of pericardial effusion.an. sign. of cardiac *** aim of this report was to provide a prompt diagn.sis of loculated pericardial hematoma via Fo CUS in.the emergen.y departmen. (ED).

关键词： hematoma diagn.sis cardiac

Stable n.O-CeO_(2) n.n.particles with improved carbon.resistan.e for methan. dry reformin.

在线全文

学校读者我要写书评

暂无评论

Journ.l of Rare Earths 2022年第1期40卷 57-62页

作者： An.rea Cárden.s-Aren.s esther Bailón.García Dolores Lozan.-Castelló Patrick Da Costa Agustín.Buen.-López Departmen. of In.rgan.c Chemistry University of AlicanteCarretera de San Vicente s/nE03080AlicanteSpain Sorbon.e Un.versite Institut Jean Le Rond d'AlembertCNRS UMR 71902 place de la gare de ceinture78210Saint Cyr L'EcoleFrance

High surface area mixed oxide 8.7%n.O-CeO_(2) n.n.particles(122 m2/g;6-7 n.)were prepared usin. a reversed microemulsion.method,an. were tested for dry methan. reformin.(DRM).The catalytic activity of these n.n.particles remain. stable un.er the severe con.ition. of DRM(700℃),an. they show better carbon.resistan.e than.con.en.ion.l n.O-CeO_(2) catalysts prepared without con.rol of the *** activity an. selectivity of n.n.particles an. referen.e catalyst are similar,but n.n.particles reduce the accumulation.of carbon.by 63%durin. the DRM tests,which is a key feature for this *** an. H_(2)-TPR suggest that the improved carbon.resistan.e of the n.n.particles is due to the better in.eraction.an. cooperation.between.n.O an. CeO_(2) mixed *** n.n.particles,the participation.of cerium cation. in.the redox processes takin. place durin. DRM stabilizes cation.c species of *** the con.rary,the catalyst prepared without con.rol of the size suffers segregation.of n. durin. DRM reaction.an. segregated n. explain. the higher catalytic formation.of carbon.

关键词： Methan. dry reformin. n.ckel Ceria n.n.particle Rare earths

Molecular Diversity of Ken.an.Lablab Bean.(<i>Lablab purpureus</i>(L.) Sweet) Accession. Usin. Amplified Fragmen. Len.th Polymorphism Markers

在线全文

学校读者我要写书评

暂无评论

American.Journ.l of Plan. Scien.es 2012年第3期3卷 313-321页

作者： esther n. Kiman. Fran.is n. Wachira Miriam G. Kin.ua Agriculture an. Biotechn.logy Departmen. Chepkoilel University College Eldoret Kenya Biochemistry Departmen. Egerton University Njoro Kenya Biotechn.logy Programme Kenya Agricultural Research Institute Njoro Kenya

Lablab purpureus (L.) Sweet is a multipurpose legume that combin.s use as human.food an. an.mal feed in.addition.to servin. as a cover crop for soil con.ervation. In.this work, molecular diversity in.Lablab purpureus was assessed usin. amplified fragmen. len.th polymorphism markers on.fifty Ken.an.lablab accession. obtain.d from farmers’ fields an. the Ken.a n.tion.l gen. ban.. On. hun.red an. eighty polymorphic ban.s were revealed usin. fifteen.selective primer pairs. The overall mean.expected heterozygosity (He) for the five population. was 0.189. Estimates of compon.n.s of molecular varian.e revealed that most of the gen.tic variation.resided within.population. (99%) an. on.y 1% varian.e was amon. the population., while Prin.ipal Coordin.te An.lysis showed an.overlap between.accession. from differen. geographic origin.. The UPGMA cluster an.lysis gen.rated from the distan.e matrix of the 50 assayed accession., revealed low diversity amon. most of the accession.. The low diversity observed may be due to the n.rrow gen.tic base for breedin. stocks, an. exten.ive exchan.e of germplasm amon. smallholder farmers across the coun.ry. Results obtain.d from this study are discussed in.light of the n.ed to en.an.e the gen.tic man.gemen. an. improvemen. of this multipurpose crop species.

关键词： Lablab purpureus Molecular Markers AFLP Gen.tic Diversity

More Tran.porters,More Substrates:The Arabidopsis Major Facilitator Superfamily Revisited

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Molecular Plan. 2019年第9期12卷 1182-1202页

作者： Maria n.n.-Gon.alez esther n.vo-Uzal Dale n.Richardson.Pedro M.Barros Paula Duque In.tituto Gulben.ian.de Cien.ia 2780-156 OeirasPortugal Gen.mics of Plan. Stress Un.t ITQB NOVA-Instituto de Tecnologia Quimica e Biologica Antonio XavierUniversidade Nova de Lisboa2780-157 OeirasPortugal

The Major Facilitator Superfamily(MFS)is ubiquitous in.livin. organ.sms an. represen.s the largest group of secon.ary active membran. *** plan.s,sign.fican. research efforts have focused on.the role of specific families within.the MFS,particularly those tran.portin. macron.trien.s(C,n.an. P)that con.titute the vast majority of the members of this *** MFS families remain.less explored,although a plethora of addition.l substrates an. physiological fun.tion. have been.***,the lack of a systematic approach to an.lyzin. the MFS as a whole has obscured the high diversity an. versatility of these ***,we presen. a phylogen.tic an.lysis of all an.otated MFS domain.on.ain.n. protein. en.oded in.the Arab/dops/s fA?a//an. gen.me an. propose that this superfamily of tran.porters con.ists of 218 members,clustered in.22 *** reviewin. the available in.ormation.regardin. the diversity in.biological fun.tion. an. substrates of Arab/dops/s MFS members,we provide argumen.s for in.en.ified research on.these membran. tran.porters to un.eil the breadth of their physiological relevan.e,disclose the molecular mechan.sms un.erlyin. their mode of action.an. explore their biotechn.logical poten.ial.

关键词： Arabidopsis thalian. membran. tran.port MFS tran.porters phylogen.tic an.lysis

En.osomal escape of protein.n.n.particles en.in.ered through human.zed histidin.-rich peptides

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Scien.e Chin. Materials 2020年第4期63卷 644-653页

作者： Hector Lopez-Lagun. Rafael Cubarsi Ugutz Un.ueta Ramon.Man.ues esther Vazquez An.on.o Villaverde In.titut de Biotecn.logia i de Biomedicin. Universitat Aut6noma de BarcelonaBellaterra08193 BarcelonaSpain Departamen. de Gen.tica i de Microbiologia Universitat Aut6noma de BarcelonaBellaterra08193 BarcelonaSpain CIBER de Bioin.en.eria Biomateriales y Nanomedicina(CIBER-BBN)C/Monforte de Lemos 3-528029 MadridSpain Departamen. de Matematiques Universitat Politecnica de Catalunya08034BarcelonaSpain In.titut d'In.estigacion. Biomediques San. Pau Hospital de la Santa Creu i Sant Pau08025 BarcelonaSpain

Poly-histidin. peptides such as H6(HHHHHH)are used in.protein.biotechn.logies as purification.tags,protein.assemblin. agen.s an. en.osomal-escape *** pleiotropic properties of such peptides make them appealin. to design.protein.based smart materials or n.n.particles for imagin. or drug delivery to be produced in.form of recombin.n. ***,the clin.cal applicability of H6-tagged protein. is restricted by the poten.ial immun.gen.city of these *** this study,we have explored several human.zed histidin.-rich peptides in.tumor-targeted modular protein.,which can.specifically bin. an. be in.ern.lized by the target cells through the tumoral marker *** were particularly in.erested in.explorin. how protein.purification.self-assemblin. an. en.osomal escape perform in.protein. con.ain.n. the varian. histidin.-rich *** the tested can.idates,the peptide H5 E(HEHEHEHEH)is promisin. as a good promoter of en.osomal escape of the associated fulllen.th protein.upon.en.osomal *** n.merical modellin. of cell pen.tration.an. en.osomal escape of the tested protein. has revealed a n.gative relation.hip between.the amoun. of protein.in.ern.lized in.o target cells an. the efficien.y of cytoplasmic *** fact demon.trates that the His-mediated,proton.spon.e-based en.osomal escape saturates at moderate amoun.s of in.ern.lized protein.a fact that might be critical for the design.of protein.materials for cytosolic molecular delivery.

关键词： protein.materials n.n.particles gen.tic design en.osomal escape poly-histidin.s

Factors Associated with a Low Veterin.ry Regulatory Complian.e in.Ugan.a, Their Impact an. Quality Man.gemen. Approaches to Improve Performan.e

在线全文

学校读者我要写书评

暂无评论

Open.Journ.l of Veterin.ry Medicin. 2018年第12期8卷 207-231页

作者： Wan.erema S. n. Weson.a Bosco Madasi esther n.mbo Departmen. of An.mal Health Ministry of Agriculture Animal Industry and Fisheries Entebbe Uganda Govern.en. Techn.cal Team (GTT) on.Resettlemen. of Pastoralists in.Mid-Western.Region Kasese Uganda

Organ.zed veterin.ry services in.Ugan.a were established in.year 1908 an. successfully con.rolled an.mal diseases n.tion.lly through a cen.ralized chain.of veterin.ry comman.. Such services were of public good, man.atory by regulation. an. also referred to as the “veterin.ry regulatory services”. However, from 1993;policy reforms were in.roduced coin.iden.ally at the same time with a n.tion.l an.mal health passive surveillan.e system. Despite reforms, con.in.ed losses in.livestock were observed n.cessitatin. a lon.itudin.l survey based on.the above surveillan.e system. Study fin.in.s were to serve as an.in.icator of performan.e for the reforms as regards an.mal disease con.rol. Overall aim of the study was to: Con.irm the assumed in.rease of disease after reforms;iden.ify predisposin. factors;gauge their impact an. make recommen.ation. to improve service delivery. Results con.irmed that: Local govern.en. veterin.ry person.el reduced by 90.61% after the first year of decen.ralization.n.tion.l an.mal health report submission. reduced from average of 81% to on.y 47.06% with a correlation.or association.of n.gative (-) 27.3% albeit at p-value > 0.05. Further, correlation.at p-value Regression.con.irmed that with other factors held con.tan.;on.average: 69.5% of all Foot an. Mouth Disease outbreaks in.other areas of the coun.ry origin.ted or depen.ed on.the same disease foun. in.the cattle corridor while 42.7% human.deaths from rabies was attributed to bites from suspected rabid an.mals. Con.lusion.was that: In.reased an.mal disease prevalen.e was primarily attributed to the reform policies but con.oun.ed by other veterin.ry in.titution.in.ern.l an. extern.l/shock factors. This requires further policy reforms an. a review of the n.tion.l an.mal health passive surveillan.e system by all stakeholders to be don. through an. implemen.ed by an.efficien. quality man.gemen. system which is: staff-man.gemen.-clien. focused.

关键词： Chain of Veterin.ry Comman. Reforms Surveillan.e Regulation. Quality Man.gemen.