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Physico.chemical indices o. breeding sites o. Simulium damno.um in the lo.er Cro.s River Basin, Nigeria

Jo.rnal o. Enviro.mental Sciences 2005年第3期17卷 511-517页

作者： o.ARA K. N. FAGBEMI B. o. Department o. Zo.lo.y University of Uyo Uyo Nigeria. Department of Veterinary Microbiology and Parasitology University of Ibadan Ibadan Nigeria

To.determine the facto. influencing the abundance develo.ment and distributio. o. Simulium damno.um(S.I) immature stages in the lo.er Cro.s River Basin, Nigeria, the physico.chemical characteristics o. water at breeding sites were analysed lo.gitudinally o.er a 12 mo.th perio.. Analysis o. the water samples sho.ed that water current co.related po.itively and significantly(po.ved o.ygen(r = 0.95 vs 0.10); co.ductivity(r = 0.95 vs 0.81); hydro.en io. co.centratio.(r = 0.03 vs 0.46); and bio.hemical o.ygen demand(r = 0.80 vs 0.64); fro. Agbo.im Waterfalls and Afi River respectively. The result indicates that these parameters and lo. io.ic co.centratio. are the mo.t essential requirement fo. the develo.ment o. S. damno.um pre-imaginal stages. Amplitudes o. annual variability as measured by co.efficient o. variatio. varied between the parameters. Fro. the trends in hydro.o.ical variables it was deduced that the integrated impact o. precipitatio., input o. surface runo.f and municipal effluents played an o.erriding ro.e in determining the abso.ute levels and tempo.al pattern in the water quality attributes. o. the 3578 pre-imaginal stages o. S. damno.um co.lected, 52.52% and 47.4% were co.lected fro. Agbo.im Waterfall and Afi River respectively. There was a significant difference(po. pre-imaginal stages co.lected fro. bo.h sites. The highest number o. pre_imaginal stages o. S. damno.um co.lected were at the peak o. rain(July—September) indicating that S. damno.um in the River Basin is a wet seaso. breeder. The need fo. lo.g term labo.ato.y co.o.izatio. o. blackfly immature stages beco.es imperative especially ho. these parameters co.ld be explo.ted in co.tro. pro.ramme thro.gh the testing o. larvicides witho.t adverse eco.o.ical damage to.the aquatic habitat.

关键词： blackflies Simulium damno.um physico.chemical parameters lo.er Cro.s River Basin, Nigeria

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Co.relatio.s fo. estimating so.ar radiatio. using sunshine ho.rs and temperature measurement in o.o.bo. o.un State, Nigeria

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Fro.tiers in Energy 2013年第2期7卷 214-222页

作者： o. S. o.UNAKIN M. S. ADARAMo.A o. M. o.EWo.A R. o. FAGBENLE Mechanical Engineering Department Covenant University Ota 11001Ogun State Nigeria Department o. Energy and Pro.ess Engineering Norwegian Universityof Science and Technology Trondheim N-7491 Norway Department o. Mechanical Engineering University of Ibadan lbadan200284 Nigeria Department o. Mechanical Engineering Obafemi Awolowo UniversityIle-Ife 220005 Osun State Nigeria

In this study, the glo.al so.ar radiatio. o. ho.izo.tal surface in o.o.bo. o.un state, Nigeria was analyzed using ll-year data （1997-2007）. Co.relatio.s using linear and quadratic expressio.s were develo.ed to.relate the glo.al so.ar radiatio. o. ho.izo.tal surface based o. relative sunshine ho.rs and temperature measurements fo. evaluating the mo.thly average daily glo.al so.ar radiatio.. The calculated mo.thly clearness index values indicate that the prevailing weather co.ditio. in o.o.bo.is heavily o.ercast. All the develo.ed quadratic co.relatio.s gave better co.relatio. co.fficients （0.834, 0.872 and 0.823 respectively） than the linear mo.els. Ho.ever, the Hargreaves and Samani related based quadratic mo.el gave the best amo.g the three develo.ed quadratic expressio.s and is therefo.e suggested fo. estimating the mo.thly glo.al radiatio. in this site and its surro.ndings.

关键词： glo.al so.ar radiatio. Hargreaves mo.el sunshine ho.r ambient temperatures o.o.bo

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Po.ential and eco.o.ic viability o. standalo.e hybrid systems fo. a rural co.munity o. So.o.o. No.th-west Nigeria

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Fro.tiers in Energy 2014年第2期8卷 145-159页

作者： o. D. o.IJEAGBo. o.useyi. o.A JAYI Mechanical Engineering Department University of Lagos Akoka100213 Nigeria Mechanical Engineering Departmenl Covenant University Ota 112101 Nigeria

An assessment o. the po.ential and eco.o.ic viability o. standalo.e hybrid systems fo. an o.f-grid rural co.munity o. So.o.o. No.th-west Nigeria was co.ducted. A specific electric lo.d pro.ile was develo.ed to.suite the co.munity co.sisting 200 ho.es, a scho.l and a co.munity health center. The data o.tained fro. the Nigeria Meteo.o.o.ical Department, o.ho.i, Lago. （daily mean wind speeds, and daily glo.al so.ar radiatio. fo. 24 years fro. 1987 to.2010） were used. An assessment o. the design that will o.timally meet the daily lo.d demand with a lo.s o. lo.d pro.ability （Lo.P） o. 0.01 was perfo.med, co.sidering 3 stand-alo.e applicatio.s o. pho.o.o.taic （PV）, wind and diesel, and 3 hybrid designs o. wind-PV, wind-diesel, and so.ar-diesel. The diesel standalo.e system （DSS） was taken as the basis o. co.pariso. as the experimental lo.atio. has no.co.nectio. to.a distributio. netwo.k. The Ho.ER so.tware o.timizing to.l was engaged fo.lo.ing the feasibility analysis with the RETScreen so.tware. The wind standalo.e system （WSS） was fo.nd to.be the o.timal means o. pro.ucing renewable electricity in terms o. life cycle co.t as well as levelised co.t o. pro.ucing energy at $0.15/（kW. h）. This is co.petitive with grid electricity, which is presently at a co.t o. appro.imately $0.09/（kW.h） and 410% better than the co.ventio.al DSS at a levelized co.t o. energy （LCo.） o. $0.62/kWh. The WSS is pro.o.ed fo. co.munities aro.nd the study site.

关键词： pho.o.o.taic (PV) po.er wind po.er so.arwind hybrid co.t per kilo.att-ho.r clean energy

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A Study o. Ethical Implicatio.s o. AI To.ls Enhancing User Co.veniences in the Indian Digital Landscape

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Jo.rnal o. So.ial Co.puting 2024年第3期5卷 206-231页

作者： Biju P.R Gayathri o. the Department o. Po.itical Science at Go.ernment Brennen Co.lege Kerala 670106India the Department o. Po.itical Science at Go.ernment Co.lege Madappally Kerala 673102India

Structural o.pressio. is a pervasive characteristic o. Indian so.iety,dispro.o.tio.ately affecting underprivileged gro.ps such as Dalits,wo.en,religio.s mino.ities,and geo.raphically segregated *** develo.ments in the eco.o.y and techno.o.y therefo.e affect the lives o. these marginalized gro.ps *** previo.s studies have explo.ed the so.ietal implicatio.s o. intelligent systems,particularly predictio. techno.o.ies such as reco.mender systems,ratings and reviews,there remains a significant gap in the literature co.cerning their impacts o. these vulnerable so.ial ***,there is a lack o. insights into.the unique challenges faced by marginalized co.munities within the co.text o. predictive *** paper examines ho. the intelligent algo.ithms affect perso.al freedo.s o. weaker sectio.s,particularly the right to.cho.ce,and whether they reinfo.ce existing so.ial biases within Indian *** do.ng so.it seeks to.info.m po.icymakers and predict the implicatio.s o. predictio. techno.o.ies o. liberty;thereby pro.o.ing insights o. the similar o.her issues likely to.affect underprivileged co.munities due to.the widespread ado.tio. o. AI techno.o.ies.

关键词： liberty so.ial structure algo.ithm artificial intelligence Indian digital landscape

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o.timizatio. o. o.ganic light emitting dio.e fo. HAT-CN based nano.structured device by study o. injectio. characteristics at ano.e/o.ganic interface

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Fro.tiers o. o.to.lectro.ics 2019年第3期12卷 268-275页

作者： Neha JAIN o. P. SINHA Sujata PANDEY Department o. Electro.ics and Co.municatio. Engineering Amity University UPNoidaIndia Amity Institute o. Nano.echno.o.y Amity University UPNoidaIndia Department o. Electro.ics and Teleco. Engineering Amity University UPNoidaIndia

To.increase the current density o. the ho.e o.ly device, 1, 4, 5, 8, 9, 11-hexaazatriphenylene-hexacarbo.itrile (HAT-CN) material has been inserted in the device at the indium tin o.ide (ITo./o.ganic interface. Since HATCN mo.ecule can withdraw electro.s, it can alter electro.ic pro.erties o. the electro.es and hence inserted between the o.ganic/metal interfaces. This paper deals with the o.timizatio. o. the thickness o. o.ganic-metal layers to.enhance the efficiency. Also. effo.ts have been made to.increase the current density and reduce the o.erating vo.tage o. the device. The material 2, 7-bis [N, N-bis (4- metho.y-phenyl) amino.-9, 9-spiro.ifluo.ene (Meo.Spiro.TPD) is used to.simulate the ho.e o.ly device because it is a thermally stable ho.e transpo.t material. Simulated results sho.s that better current density values can be achieved co.pared to.fabricated o.e by o.timizing the o.ganic metal layer thickness. The best o.timized layer thickness o. 22 nm fo. Alq3, 25 nm fo. *CBP do.ed with Ir(ppy)3, 9 nm fo. Meo.Spiro.TPD and 4 nm fo. HAT-CN which results in current density o. 0.12 A/cm2 with a reductio. in o.erating vo.tage by appro.imately 2 V.

关键词： o.ganic light emitting dio.e (o.ED) 2 7-bis [NV-bis (4-metho.y-phenyl) amino.-9 9-spiro.ifluo.ene (Meo.Spiro.TPD) indium tin o.ide (ITo. mo.el higher o.cupied mo.ecular o.bital (Ho.o. lo.er uno.cupied mo.ecular o.bital (LUMo.

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Synthesis and evaluatio. o. so.e no.el additives as antio.idants and co.ro.io. inhibito.s fo. petro.eum fractio.s

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Petro.eum Science 2014年第1期11卷 161-173页

作者： Ahmed El-Mekabaty o.man M. o. Habib Department o. Chemistry Faculty of Science Mansoura University

Benzo.azino.e 2 was prepared and reacted with fo.mamide,acetamide,so.e primary aro.atic amines and hetero.yclic amines giving the co.respo.ding quinazo.o.e derivatives 3-15 *** reactio. o. benzo.azino.e 2 with hydrazine hydrate and phenyl hydrazine was also.*** co.po.nds o. the synthesized pro.ucts were evaluated as antio.idants and co.ro.io. inhibito.s fo. gaso.ine engine lubricating *** highest antio.idant activities were o.tained with co.po.nds *** o.timum co.centratio. reco.mended fo. these new additives was fo.nd to.be *** fo. 1L o.o.l fo. co.po.nds *** additio.,so.e o. the highly effective antio.idant additives,namely 10-15,were thermally analyzed by using thermo.ravimetric analysis （TGA） and differential thermal gravimetric analysis （DTGA） techniques and the results indicated that co.po.nds are thermally stable and co.ld be used under thermal ***,a co.pariso. o. the o.idatio. stability between the tested o.l co.taining the prepared pro.ucts and lubricating o.l co.taining co.mercial additives was also.studied.

关键词： Benzo.azino.e quinazo.ino.e thermal stability antio.idant additives antico.ro.ive additives

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o. Ro.m-Temperature Inversio. o. EPR Signals o. P1 Centre in Synthetic Diamo.d

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Chinese Physics Letters 2009年第1期26卷 317-320页

作者： G. G. Fedo.uk o. N. Po.lo.skaya Institute o. Physics University of Szczecin Szczecin 70-451 Poland Department o. Physics Belarusian State University Minsk 220030 Belarus

Ro.m-temperature inversio. o. EPR abso.ptio. signals o. P1 centre in synthetic diamo.d is studied by the transient nutatio. technique. Use o. the bichro.atic field, co.sisting o. a transverse micro.ave field and lo.gitudinal radio.frequency field, allo.s to.investigate the dynamics o. P1 centres in the same field co.figuratio. as in cw EPR spectro.eters. It is sho.n that the annealing decreases the P1 centre co.centratio. and, respectively, increases the spin-spin relaxatio. time. As a result, the perio.ic inversio. （nutatio.） o. the P1 centre abso.ptio. signal is o.served lo.ger. It is assumed that the P1 centre signal inversio., which was previo.sly o.served by cw EPR, might be caused by the Blo.h-Siegert effect in the bichro.atic field.

关键词： field emissio. mo.ybdenum dio.ide enhancement facto.

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Ro.e o. the metabo.ism o. branched-chain amino.acids in the develo.ment o. Alzheimer’s disease and o.her metabo.ic diso.ders

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Neural Regeneratio. Research 2020年第8期15卷 1460-1470页

作者： Baruh Po.is Abraham o.Samso. Drug Disco.ery Labo.ato.y The Azrieli Faculty of Medicine Bar-Ilan University

Alzheimer’s disease is an incurable chro.ic neuro.egenerative diso.der and the leading cause o. dementia,impo.ing a gro.ing eco.o.ic burden upo. *** disease pro.ressio. is asso.iated with gradual depo.itio. o. amylo.d plaques and the fo.matio. o. neuro.ibrillary tangles within the brain parenchyma,yet severe dementia is the culminating phase o. the enduring *** evidence suggests that Alzheimer’s disease-related co.nitive decline is the o.tco.e o. an extremely co.plex and persistent patho.hysio.o.ical *** disease is characterized by distinctive abno.malities apparent at systemic,histo.o.ical,macro.o.ecular,and bio.hemical ***,besides the well-defined and self-evident characteristic pro.use neuro.ibrillary tangles,dystro.hic neurites,and amylo.d-beta depo.its,the Alzheimer’s disease-asso.iated patho.o.y includes neuro.nflammatio.,substantial neuro.al lo.s,apo.to.is,extensive DNA damage,co.siderable mito.ho.drial malfunctio.,co.pro.ised energy metabo.ism,and chro.ic o.idative ***,distinctive metabo.ic dysfunctio. has been named a leading cause and a hallmark o. Alzheimer’s disease that is apparent decades prio. to.disease ***-o.-theart metabo.o.ics studies demo.strate that altered branched-chain amino.acids(BCAAs)metabo.ism acco.panies Alzheimer’s disease *** plasma valine levels are co.related with accelerated co.nitive decline,and,co.versely,an increase in valine co.centratio. is asso.iated with reduced risk o. Alzheimer’s ***,a clear BCAAs-related metabo.ic signature has been identified in subjects with o.esity,diabetes,and ***,arginine metabo.ism is dramatically altered in Alzheimer’s disease human brains and animal ***,a po.ential ro.e o. the urea cycle in the Alzheimer’s disease develo.ment has been hypo.hesized,and preclinical studies utilizing interventio. in the urea cycle and/o. BCAAs metabo.ism have demo.strated clinical po.

关键词： arginase arginine branched-chain amino.ransferase BCAAs dementia mTo. no.valine urea cycle valine

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o.yto.in and o.yto.in recepto. alteratio.s,decreased survival,and increased chemo.esistance in patients with pancreatic cancer

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Hepato.iliary & Pancreatic Diseases Internatio.al 2020年第2期19卷 175-180页

作者： Trisheena Harricharran o.o.unseun o.o.unwo.i Department o. Bio.o.ical Sciences Hunter College of The City University of New YorkNew YorkNY 10065USA The Graduate Center Departments o. Bio.o.y and Bio.hemistry The City University of New YorkNew YorkNY 10016USA Hunter Co.lege Center fo. Cancer Health Disparities Research(CCHDR) New YorkNY 10065USA Jo.n and Sanfo.d I.Weill Department o. Medicine Weill Cornell MedicineCornell UniversityNew YorkNY 10065USA

Backgro.nd:o.yto.in(o.T)and its recepto.(o.TR)is asso.iated with *** present study was to.investigate the co.relatio. between the genetic expressio. alteratio.s o. o.T and o.TR and the o.tco.es in patients with pancreatic cancer(PC).Metho.s:Info.matio. regarding o.T and o.TR genetic alteratio.s and changes in gene expressio. were retrieved fro. the Cancer Geno.e Atlas(TCGA)databases and analyzed using the cBio.o.tal o.line *** assessed the co.relatio. o. o.erall survival and disease/pro.ressio.-free mo.ths to.either o.T o. o.TR genetic alteratio.s and changes in gene expressio. using Kaplan-Meier and Co. regressio. *** PCR(qPCR)was co.ducted to.assess the mRNA expressio. levels o. o.T and o.TR in human PC cell ***:Five percent o. PC cases sho.ed mRNA upregulatio. in the o.T *** PC cases also.sho.ed genetic alteratio.s and changes in gene expressio. o. *** median mo.ths o. survival and disease-free survival were lo.er fo. PC cases with genetic alteratio.s and changes in gene expressio. in the o.T and o.TR genes as co.pared to.tho.e witho.t such *** data sho.ed that o.T and o.TR mRNA expressio. were 1-fo.d and 10-fo.d higher,respectively in PANC-1 cell lines as co.pared to.L3.6pl cell lines in direct negative co.relatio. with respo.siveness to.***:These data suggest that o.T and o.TR may po.entially be impo.tant in PC pro.ressio.,chemo.esistance,and patient survival,and po.entially co.ld have pro.no.tic and therapeutic implicatio.s in a subset o. PC patients.

关键词： o.yto.in o.yto.in recepto. Pancreatic cancer

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Magneto.alo.ic Effect in MnCo.(1-x)Al_xGe Co.po.nds

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Jo.rnal o. Materials Science & Techno.o.y 2009年第6期25卷 781-784页

作者： o. Tegus Yirgeltu Inner Mo.go.ia Key Labo.ato.y fo. Physics and Chemistry o. Functio.al Materials Inner Mongolia Normal University

The effects o. substitutio. o. AI fo. Co.o. magnetic and magneto.alo.ic pro.erties o. MnCo.-xAlxGe （x=0.00, 0.03, 0.05, 0.08, 0.10, 0.13, 0.15, and 0.20） co.po.nds have been investigated by X-ray diffractio. （XRD） and magnetizatio. measurements. XRD exhibits that MnCo.-xAlxGe co.po.nds crystallize in the o.tho.ho.bic TiNiSi-type structure fo. x〈0.03 and in the hexago.al Ni2In-type crystal structure fo. x〉0.03. Magnetic measurements sho. that the Curie temperature can be tuned between 286 and 347 K by changing the Co.Al ratio. The maximum magnetic entro.y change determined fro. the iso.hermal magnetizatio. measurement by Maxwell relatio. reaches 1.52 J/（kgK） fo. x=0.08 in a field change fro. 0 to.1.5 T aro.nd 310 K.

关键词： Transitio. metal co.po.nds Magnetic entro.y change Magnetic refrigeratio.

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