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o.en Jo.rnal o. Statistics 2016年第1期6卷 96-132页

作者： M. o. Adeno.o. V. A. Michael o. p. evans Dep.rtment o. Mathematics & Statistics The Federal Polytechnic Bida Nigeria

In time series literature, many autho.s have fo.nd o.t that multico.linearity and auto.o.relatio. usually afflict time series data. In this p.p.r, we co.p.re the p.rfo.mances o. classical VAR and Sims-Zha Bayesian VAR mo.els with quadratic decay o. bivariate time series data jo.ntly influenced by co.linearity and auto.o.relatio.. We simulate bivariate time series data fo. different co.linearity levels (﹣0.99, ﹣0.95, ﹣0.9, ﹣0.85, ﹣0.8, 0.8, 0.85, 0.9, 0.95, 0.99) and auto.o.relatio. levels (﹣0.99, ﹣0.95, ﹣0.9, ﹣0.85, ﹣0.8, 0.8, 0.85, 0.9, 0.95, 0.99) fo. time series length o. 8, 16, 32, 64, 128, 256 resp.ctively. The results fro. 10,000 simulatio.s reveal that the mo.els p.rfo.mance varies with the co.linearity and auto.o.relatio. levels, and with the time series lengths. In additio., the results reveal that the BVAR4 mo.el is a viable mo.el fo. fo.ecasting. Therefo.e, we reco.mend that the levels o. co.linearity and auto.o.relatio., and the time series length sho.ld be co.sidered in using an ap.ro.riate mo.el fo. fo.ecasting.

关键词： Vecto. Auto.egressio. (VAR) Classical VAR Bayesian VAR (BVAR) Sims-Zha p.io. Co.linearity Auto.o.relatio.

A Simulatio. Study o. the p.rfo.mances o. Classical Var and Sims-Zha Bayesian Var Mo.els in the p.esence o. Auto.o.related Erro.s

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o.en Jo.rnal o. Mo.elling and Simulatio. 2015年第4期3卷 146-158页

作者： M. o. Adeno.o. V. A. Michael o. p. evans Dep.rtment o. Mathematics & Statistics The Federal Polytechnic Bida Nigeria

It is well kno.n that a high degree o. p.0}itive dep.ndency amo.g the erro.s generally leads to.1) serio.s underestimatio. o. standard erro.s fo. regressio. co.fficients;2) p.edictio. intervals that are excessively wide. This p.p.r set o.t to.study the p.rfo.mances o. classical VAR and Sims-Zha Bayesian VAR mo.els in the p.esence o. auto.o.related erro.s. Auto.o.relatio. levels o. (-0.99, -0.95, -0.9, -0.85, -0.8, 0.8, 0.85, 0.9, 0.95, 0.99) were co.sidered fo. sho.t term (T = 8, 16);medium term (T = 32, 64) and lo.g term (T = 128, 256). The results fro. 10,000 simulatio. revealed that BVAR mo.el with lo.se p.io. is suitable fo. negative auto.o.relatio.s and BVAR mo.el with tight p.io. is suitable fo. p.0}itive auto.o.relatio.s in the sho.t term. While fo. medium term, the BVAR mo.el with lo.se p.io. is suitable fo. the auto.o.relatio. levels co.sidered excep. in few cases. Lastly, fo. lo.g term, the classical VAR is suitable fo. all the auto.o.relatio. levels co.sidered excep. in so.e cases where the BVAR mo.els are p.eferred. This wo.k therefo.e co.cludes that the p.rfo.mance o. the classical VAR and Sims-Zha Bayesian VAR varies in terms o. the auto.o.relatio. levels and the time series lengths.

关键词： Simulatio. p.rfo.mances Vecto. Auto.egressio. (VAR) Classical VAR Sims-Zha p.io. Bayesian VAR (BVAR) Auto.o.related Erro.s

Sho.t Term Fo.ecasting p.rfo.mances o. Classical VAR and Sims-Zha Bayesian VAR Mo.els fo. Time Series with Co.linear Variables and Co.related Erro. Terms

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o.en Jo.rnal o. Statistics 2015年第7期5卷 742-753页

作者： M. o. Adeno.o. V. A. Michael o. p. evans Dep.rtment o. Mathematics & Statistics The Federal Polytechnic Bida Nigeria

Fo.ecasts can either be sho.t term, medium term o. lo.g term. In this wo.k we co.sidered sho.t term fo.ecast because o. the p.o.lem o. limited data o. time series data that is o.ten enco.nter in time series analysis. This simulatio. study co.sidered the p.rfo.mances o. the classical VAR and Sims-Zha Bayesian VAR fo. sho.t term series at different levels o. co.linearity and co.related erro. terms. The results fro. 10,000 iteratio. revealed that the BVAR mo.els are excellent fo. time series length o. T=8 fo. all levels o. co.linearity while the classical VAR is effective fo. time series length o. T=16 fo. all co.linearity levels excep. when ρ = -0.9 and ρ = -0.95. We therefo.e reco.mended that fo. effective sho.t term fo.ecasting, the time series length, fo.ecasting ho.izo. and the co.linearity level sho.ld be co.sidered.

关键词： Sho.t term Fo.ecasting Vecto. Auto.egressive (VAR) Bayesian VAR (BVAR) Sims-Zha p.io. Co.linearity Erro. Terms

p.lladium-catalyzed S_(N)2 glyco.ylatio. o. p.eno.s

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Science China Chemistry 2024年第4期67卷 1037-1038页

作者： Yu Zhu p.Andrew evans Dep.rtment o. Chemistry Queen’s University90 Bader LaneKingstonK7L 3N6Canada Xiangya Scho.l o. p.armaceutical Sciences Central South UniversityChangsha 410013China

Glyco.ides are essential structural mo.ifs p.esent in an array o. imp.0}tant medicines,materials,and natural p.o.ucts[1].Nevertheless,the chemo.and stereo.elective co.structio. o. the glyco.idic linkage is a lo.g-standing challenge because relatively mino. variatio.s in the glyco.yl do.o. o. accep.o.’s structure can imp.ct stereo.electivity,thus influencing the p.o.uct's functio.al p.o.erties.

关键词： p.o.erties p.lladium catalyzed

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Enantio.elective iridium-catalyzed allylic substitutio. with a Refo.matsky reagent: direct co.structio. o. β-stereo.enic ho.o.llylic esters

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Science China Chemistry 2024年第11期67卷 3791-3797页

作者： Debasis p.l Kirana D.Veeranna Yuk Fai Wo.g p.Andrew evans Dep.rtment o. Chemistry Queen's University Xiangya Scho.l o. p.armaceutical Sciences Central South University

The Refo.matsky reagent derived fro. ethyl bro.o.cetate circumvents the challenge asso.iated with the direct regio.and enantio.elective iridium-catalyzed allylic alkylatio. with an unstabilized alip.atic ester eno.ate. No.ably, this wo.k rep.esents the first examp.e o. using a Refo.matsky reagent in a metal-allyl reactio., which p.rmits the direct co.structio. o. enantio.nriched β-stereo.enic ho.o.llylic esters witho.t p.eactivatio. o. the p.o.ucleo.hile o. p.0}t-reactio. mo.ificatio. o. the p.o.uct(e.g., thermal decarbo.ylatio. o. a 1,3-dicarbo.yl). Mo.eo.er, the p.o.ess allo.s the co.p.ing o. a bro.d range o. sterically and electro.ically diverse electro.hiles bearing aryl, hetero.ryl and alkenyl derivatives, including the significantly mo.e challenging alkyl-substituted allylic carbo.ates. The versatility o. the ester p.o.uct is exemp.ified by a series o. functio.al gro.p.manip.latio.s and the develo.ment o. a co.cise and efficient enantio.elective to.al synthesis o. the natural p.o.uct,(+)-descuraino.ide A. Finally, mechanistic studies indicate that the zinc eno.ate behaves as a so.t nucleo.hile that undergo.s o.ter-sp.ere alkylatio..

关键词： allylic substitutio. asymmetric catalysis mechanistic studies natural p.o.uct synthesis Refo.matsky reagent

Efficacy o. no.so.vent flo.er p.0}len extracts in healthy wo.en with urinary inco.tinence:A rando.ized,do.ble-blind,p.acebo.co.tro.led,p.rallel study

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Current Uro.o.y 2024年第3期18卷 203-211页

作者： Marc Mo.lin Erin D.Lewis David C.Cro.ley Co.leen E.May Malkanthi evans KGK Science Inc. LondonOntarioCanada Graminex L.L.C.SaginawMIUSA

Backgro.nd Urinary inco.tinence(UI)is a debilitating and co.mo. co.ditio. that adversely affects quality o. *** and surgical ap.ro.ches fo. managing UI symp.o.s may result in undesirable risks and *** rando.ized,do.ble-blind,p.acebo.co.tro.led,p.rallel study investigated the efficacy o. 2 no.so.vent flo.er p.0}len extracts o. UI in healthy *** and metho.s o.e-hundred and fo.rteen wo.en aged 40–75 years who.sco.ed≥5 o. the Internatio.al Co.sultatio. o. Inco.tinence Questio.naire-Urinary Inco.tinence Sho.t Fo.m(ICIQ-SF)were rando.ized to.receive either Graminex®RCT Fem™UI,Graminex®p.0}lenBerry®,o. p.acebo.fo. 24 *** p.imary o.tco.e was the change in the ICIQ-SF sco.e between the trial and p.acebo.gro.p. after 24 weeks o. *** seco.dary o.tco.es included changes in the frequency o. no.turia(reco.ded in 3-day vo.d diaries)and 24-ho.r leakage vo.ume(assessed via p.d weight)after 6,12,18,and 24 weeks o. sup.lementatio. and changes in stress-induced urinary leakage vo.ume(after co.p.etio. o. a p.o.o.ative maneuver challenge)after 24 weeks o. *** All the gro.p. demo.strated imp.o.ement in ICIQ-SF sco.es at week 24(p.0.001).The RCT Fem™UI gro.p.had the greatest imp.o.ement in ICIQ-SF sco.es(−4.07±3.4),fo.lo.ed by the p.0}lenBerry®gro.p.−3.34±2.87)and p.acebo.gro.p.−2.61±3.52).The RCT Fem™UI gro.p.had co.resp.0}ding imp.o.ements in 24-ho.r leakage vo.ume(−17.68±39.84 g)and frequency o. no.turia(−0.52±1.26)(p.0.05).p.0}lenBerry®sup.lementatio. significantly imp.o.ed stress-induced urinary leakage vo.ume(−7.12±15.64 g)at week *** study p.o.ucts demo.strated safe hemato.o.ical and chemical *** RCT Fem™UI sup.lementatio. resulted in significant and clinically meaningful reductio.s in UI severity,with co.resp.0}ding imp.o.ements in daily urinary leakage vo.ume and frequency o. ***®significantly imp.o.ed stress-induced urinary leakage vo.ume,suggesting that it may be eff

关键词： Urinary inco.tinence p.0}len extract Healthy wo.en Dietary sup.lement ICIQ-SF Urinary leakage

Effect o. baffles o. p.rfo.mance o. fluid catalytic cracking riser

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p.rticuo.o.y 2018年第3期16卷 18-30页

作者： Milinkumar T. Shah Vishnu K. p.reek Geo.frey M. evans Ranjeet p. Utikar Dep.rtment o. Chemical Engineering Curtin University Western Australia Australia Dep.rtment o. Chemical Engineering University of Newcastle New South Wales Australia

Increasing demand o. auto.o.ile fuel and a need to.p.o.ess heavier crude o.l makes it imp.rative to.find imp.o.ements to.the design o. existing fluid catalytic cracking （FCC） units. Several mo.ificatio.s to.the design o. the riser sectio. o. FCC units have been suggested in p.evio.s studies including： imp.o.ed feed no.zle designs, multip.e no.zle co.figuratio.s, internal baffles, and no.el two.stage-riser systems. In this study, we investigate the effects o. baffles o. the p.rfo.mance o. FCC risers using co.p.tatio.al fluid dynamics simulatio.s. In this study, p.edictio.s fro. a basis mo.el （witho.t baffles） are co.p.red with tho.e fro. fo.r different co.figuratio.s including：（i） 5-cm baffles at 5-m sp.cing, （ii） 7.5-cm baffles at 5- m sp.cing, （iii） 10-cm baffles with 5-m sp.cing, （iv） lo.cm baffles at 2.5-m sp.cing, and （v） lo.cm baffles at 1-m sp.cing. The baffles fo.ce the catalyst away fro. wails to.ard the center o. the riser, enhancing the radial disp.rsio. o. the catalyst and the heat transfer inside the riser. The use o. lo.ger baffles and smaller sp.cings further increases the disp.rsio., yielding mo.e ho.o.eneo.s radial p.o.iles. The changes in the radial disp.rsio. result in variatio.s in the co.versio., yields, and p.essure dro.s. The baffles increase co.versio. o. vacuum gas o.l （VGo. and the yield o. gaso.ine. Ho.ever, the simulatio.s sho.ed that lo.ger baffles and a larger number o. baffles did no. always give a higher yield o. higher co.versio.. Amo.g the simulated co.figuratio.s, the 5-cm baffles at 5-m sp.cing gave the highest co.versio. o. VGo. whereas the 10-cm baffles at 1 -m sp.cing resulted in the highest yield o. the gaso.ine. Thus, ratio.al o.timizatio. o. baffle co.figuratio.s is required to.achieve o.timal p.rfo.mance.

关键词： Fluid catalytic cracking Riser Baffles Co.p.tatio.al fluid dynamics

Effects o. the co.centratio. and nature o. to.al disso.ved so.ids in drinking water o. feed intake, nutrient digestio., energy balance,methane emissio., ruminal fermentatio., and blo.d co.stituents in different breeds o. yo.ng go.ts and hair sheep

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Animal Nutritio. 2024年第1期16卷 84-95页

作者： Amlan Kumar p.tra Luana p.ula do. Santo. Ribeiro.Hirut Yirga Adekayo.e o.So.ibare Ahmed R.Askar Ali H.Hussein Ryszard p.chala Arthur Lo.is Go.tsch American Institute fo. Go.t Research Langston University Animal and p.0}ltry Nutritio. Dep.rtment Desert Research Center Agriculture Food and Natural ResourcesEastern New Mexico University

Understanding ho. different livesto.k sp.cies and breeds resp.0}d to.co.sump.io. o. brackish water co.ld imp.o.e usage o. this ***,Ango.a,Bo.r,and Sp.nish go.t do.lings and Do.p.r,Katahdin,and *** ewe lambs (6 animals p.r animal typ.[AT];initial age=296±2.1 days)co.suming water with varying co.centratio.s o. minerals o. a natural brackish water so.rce (BR) and so.ium chlo.ide (NaCl;SL) were used to.determine effects o. water and feed intake,nutrient digestio.,heat energy,methane emissio.,ruminal fluid co.ditio.s,and blo.d co.stituent *** were 6 simultaneo.s 6 (water treatments[WT])×6 (AT) Latin squares with 3-wk *** WT were fresh (FR),BR alo.e (100-BR),a similar to.al disso.ved so.ids (TDS) co.centratio. as 100-BR via NaCl additio. to.FR (100-SL),BR with co.centratio.s o. all minerals increased by ap.ro.imately 50%(150-BR),a similar TDS level as 150-BR by NaCl additio. to.FR (150-SL),and a similar 150 TDS level achieved by additio. o. a 1:1 mixture o. BR minerals and NaCl to.100-BR (150-BR/SL).Co.centratio.s (mg/kg) in BR were 4928 TDS,85.9 bicarbo.ate,224.9 calcium,1175 chlo.ide,60.5 magnesium,4.59 p.0}assium,1387so.ium,1962 sulfate,and 8.3 bo.o.,and TDS in o.her WT were 209,5684,7508,8309,and 7319 mg/kg fo. FR,100-SL,150-BR,150-SL,and 150-BR/SL,*** were very few significant effects o. WT o. AT×WT interactio.s,altho.gh AT had numero.s *** intake was affected by AT (p.0.02)and WT (p.0.04),with greater water intake fo. 150-SL than fo. FR,100-BR,100-SL,and *** matter intake amo.g AT was lo.est (p.0.05) fo. *** o. o.ganic matter and neutral detergent fiber and heat energy differed amo.g AT (p.0.05),but nitro.en digestio. and ruminal methane emissio. were similar amo.g *** aldo.tero.e co.centratio. was higher (p.0.05) fo. FR than fo. o.her *** co.clusio.,all AT seemed resilient to.these WT regardless o. mineral so.rce and co.centratio.s,with TDS less than 8300 mg/kg,which did

关键词： Go.ts Hair sheep Nutrient utilizatio. Ruminal fermentatio. Salinity Water quality

Effect o. mucin 4 allele o. suscep.ibility to.exp.rimental infectio. with entero.o.igenic F4 Escherichia co.i in p.gs fed exp.rimental diets

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Jo.rnal o. Animal Science and Bio.echno.o.y 2019年第4期10卷 981-989页

作者： Samantha o.Sterndale Danica J.evans Jo.ep.ine p.Mansfield Julie Clarke Shafi Sahibzada Sam Abraham Mark o.Dea David W.Miller Jae Cheo. Kim Jo.n R.p.uske Agriculture Sciences College of ScienceHealthEngineering and Education Murdoch UniversityMurdochWA 6150Australia CSIRo.Health and Bio.ecurity PO BOX 10041AdelaideBC 5000Australia Antimicro.ial Resistance and Infectio.s Disease Labo.ato.y Murdoch UniversityMurdochWA 6150Australia AB Vista Asia p.e.Ltd The MezzoWhampoa 329682Singapore

Backgro.nd: This study investigated the validity o. the DNA-marker based test to.determine suscep.ibility to.ETECF4 diarrho.a by co.p.ring the results o. two.DNA sequencing techniques in weaner p.gs fo.lo.ing exp.rimental infectio. with F4 entero.o.igenic Escherichia co.i(ETEC-F4). The effects o. diet and genetic suscep.ibility were assessed by measuring the incidence o. p.glet p.0}t-weaning diarrho.a(p.D), faecal E. co.i shedding and the diarrho.a ***: A DNA marker-based test targeting the mucin 4 gene(MUC4) that enco.es F4 fimbria recep.o. identified p.gs as either fully suscep.ible(SS), p.rtially o. mildly suscep.ible(SR), and resistant(RR) to.develo.ing ETEC-F4 diarrho.a. To.further analyse this, DNA sequencing was undertaken, and a significantly higher p.o.o.tio. o. C nucleo.ides was o.served fo. RR and SR at the Xba I cleavage site geno.yp.s when co.p.red to.SS. Ho.ever, no.significant difference was fo.nd between SR and RR geno.yp.s. Therefo.e, results o.tained fro. Sanger sequencing retro.p.ctively allo.ated p.gs into.a resistant geno.yp.(MUC4–), in the case o. a C nucleo.ide, and a suscep.ible geno.yp.(MUC4+), in the case o. a G nucleo.ide, at the single nucleo.ide p.0}ymo.p.ism site. A to.al o. 72 weaner p.gs(age ~ 21 days), weighing 6.1 ± 1.2 kg(mean ± SEM), were fed 3 different diets:(i) p.0}itive co.tro.(p.) gro.p.sup.lemented with 3 g/kg zinc o.ide(Zn o.,(ii) negative co.tro.(NC) gro.p.no.Zn o.o. HAMSA),and(iii) a diet co.taining a 50 g/kg high-amylo.e maize starch p.o.uct(HAMSA) esterified with acetate. At days five and six after weaning, all p.gs were o.ally infected with ETEC(sero.yp. o.49:F4;to.ins LT1, ST1, ST2 and EAST). The p.rcentage o. p.gs that develo.ed diarrho.a fo.lo.ing infectio. was higher(p.= 0.05) in MUC4+ p.gs co.p.red to.MUC4– p.gs(50% vs. 26.8%, resp.ctively). Furthermo.e, p.gs fed Zn o.had less ETEC-F4 diarrho.a(p.= 0.009) than p.gs fed o.her diets, ho.ever faecal shedding o. ETEC was similar(p.> 0.05) between ***

关键词： Diarrho.a Escherichia co.i F4 MUC4 Weaner p.gs Zinc o.ide

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New Identities fo. Weak KAM Theo.y(Fo. Haim Brezis,in co.tinuing admiratio.)

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Chinese Annals o. Mathematics,Series B 2017年第2期38卷 379-392页

作者： Lawrence Craig evans Dep.rtment o. Mathematics University of CaliforniaBerkeleyUSA.

This p.p.r reco.ds fo. the Hamilto.ian H =1/2|p.~2+ W(x) so.e o.d and new identities relevant fo. the p.E/variatio.al ap.ro.ch to.weak KAM theo.y.

关键词： Weak KAM theo.y, Effective Hamilto.ian, Hamilto.ian dynamics

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