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Supplementation of v.tamin E or.a botanical extr.ct as antioxidants to impr.v. gr.wth per.or.ance and health of gr.wing pigs housed under.ther.oneutr.l or.heat-str.ssed conditions

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Jour.al of Animal Science and Biotechnology 2024年第3期15卷 1101-1118页

作者： Ysenia v.Silv.‑Guillen Consuelo Ar.llano Jeffr.y Wieger. r.Dean Boyd Gabr.ela E.Mar.inez Er.c v.n Heugten Depar.ment of Animal Science North Carolina State UniversityRaleighNC 27695USA Depar.ment of Statistics North Carolina State UniversityRaleighNC 27695USA Depar.ment of Animal Science Texas A&M UniversityCollege StationTX 77843USA Animal Nutr.tion r.sear.h LLCAlvatonKY 42122USA.

Backgr.und Heat str.ss has sev.r. negativ. consequences on per.or.ance and health of pigs,leading to significant economic *** objectiv. of this study was to inv.stigate the effects of supplemental v.tamin E and a botanical extr.ct in feed or.dr.nking water.on gr.wth per.or.ance,intestinal health,and oxidativ. and immune status in gr.w-ing pigs housed under.heat str.ss *** Duplicate exper.ments wer. conducted,each using 64 cr.ssbr.d pigs with an initial body weight of 50.7±3.8 and 43.9±3.6 kg and age of 13-week and 12-week,***(n=128)wer. housed indiv.dually and assigned within weight blocks and sex to a 2×4 factor.al ar.angement consisting of 2 env.r.nments(ther.o-neutr.l(21.2℃)or.heat-str.ssed(30.9℃))and 4 supplementation tr.atments(contr.l diet;contr.l+100 IU/L of D-α-tocopher.l in water.contr.l+200 IU/kg of DL-α-tocopher.l-acetate in feed;or.contr.l+400 mg/kg of a botanical extr.ct in feed).r.sults Heat str.ss for.28 d r.duced(P≤0.001)final body weight,av.r.ge daily gain,and av.r.ge daily feed intake(-7.4 kg,-26.7%,and-25.4%,r.spectiv.ly)but no effects of supplementation wer. detected(P>0.05).Ser.m v.tamin E incr.ased(Pv.tamin E supplementation in water.and in feed(1.64 v..3.59 and 1.64 v..3.24),but not for.the botanical extr.ct(1.64 v..1.67 mg/kg)and was gr.ater.when supplemented in water.***(P=0.002).Liv.r.v.tamin E incr.ased(Pv.tamin E supplementations in water.3.9 v..31.8)and feed(3.9 v..18.0),but not with the botanical extr.ct(3.9 v..4.9 mg/kg).Ser.m malondialdehyde was r.duced with heat str.ss on d 2,but incr.ased on d 28(inter.ction,Pr.ater.Pr.antioxidant supplementation compar.d to *** pr.lifer.tion was r.duced(P=0.037)in the jejunum under.heat str.ss,but incr.ased in the ileum when v.tamin E was supplemented in feed and water.under.heat str.ss(inter.ction,P=0.04).Tumor.necr.sis factor.αin jejunum and ileum mucosa decr.ased by heat str.ss(Pr.

关键词： Botanical extr.ct Gr.wing pigs Heat str.ss Immune status Oxidativ. status Tocopher.l Water

3,6-Bis-β-Dicar.onylsubstituted Car.azoles Bear.ng N-Spacer. and Their.Eu(III) Complexes as Immunofluor.scent Labelling Agents

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Inter.ational Jour.al of Or.anic Chemistr. 2024年第1期14卷 20-31页

作者： Dmitr. E. Pugachev.Geor.y v. Zatonsky Tatyana S. Kostr.ukov. Anna G. Shubina Nikolay v. v.siliev Depar.ment of Biological Micr.analysis FGUP State Research Institute of Biological Engineering Moscow Russia Depar.ment of Theor.tical and Applied Chemistr. State University of Education Mytishchi Russia

New r.agents for.immunofluor.scence analysis of car.azole ser.es containing fluor.nated β-dicar.onyl fr.gments and car.oxylic substituent gr.ups separ.ted by spacer. of differ.nt lengths fr.m the light-gather.ng car.azole scaffold hav. been dev.loped. The mar.er. in complex with Eu3+ ions possess stability in the aqueous phase, intense and pr.longed luminescence (τ 550 - 570 μs) with char.cter.stic emission maxima in the r.gion of 615 nm and excitation wav.lengths in the r.gion of 380 - 390 nm, which distinguishes them fr.m most of the analogs used. In the study of mar.er.conjugation with str.ptav.din, a r.agent containing 4 - 5 eur.pium labeling complexes based on spacer.containing car.azole tetr.ketone was obtained. The mar.er.doped silicate nanopar.icles exhibit intense and long-liv.d luminescence in the char.cter.stic r.gion.

关键词： Fluor.scence Immunoassay Fluor.nated β-Diketones Car.azole Eur.pium Complexes Str.ptav.din Nanodisper.ions

The r.dcliffe Wav. Par.meter. fr.m Data on Open Star.Cluster.

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r.sear.h in Astr.nomy and Astr.physics 2024年第3期24卷 106-109页

作者： v.v.Bobylev.A.T.Bajkov. Pulkov. Astr.nomical Obser.0}tor. St-Petersburg 196140Russia

A spectr.l analysis of the v.r.ical positions and v.locities of 374 open star.cluster.(OSCs)was car.ied *** took these OSCs fr.m the Hunt and r.ffer. catalog;they hav. an av.r.ge age of about 10 million year.,and ar. located on the galactic plane XY in a nar.ow zone inclined by 25°to the galactic axis *** following estimates of the par.meter. of the r.dcliffe wav. wer. obtained:(a)the maximum v.lue in per.odic per.ur.ations of v.r.ical coor.inates Z_(max)=92±10pc with the wav.length of these per.ur.ations λ_(z)=4.82±0.09 kpc;(b)the maximum v.lue of the v.locity of v.r.ical distur.ances Wmax=4.36±0.12km s^(-1) with distur.ance wav.lengthλ_(W)=1.78±0.02 *** that the r.sults of the v.r.ical v.locity analysis ar. fir.t-class in accur.cy and completely new.

关键词： (Galaxy) local inter.tellar.matter.Galaxy str.ctur.-(Galaxy) solar.neighbor.ood

The Use of Secondar. Gr.pe Biomass in Beef Cattle Nutr.tion on Car.ass Char.cter.stics, Quality and Shelf Life of Meat

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Food and Nutr.tion Sciences 2024年第6期15卷 447-469页

作者： v.tor.L. Molosse Guilher.e L. Deolindo r.fael v. P. Lago Br.na Klein Claiton A. Zotti Mar.elo v.dov.to Mar.ylene v. da Silv.ir. Pr.scila M. Copetti Mar.a r. C. Schetinger.Jusciv.te F. Fav.r. Eliana L. Fior.ntin Aleksandr. S. da Silv. Univ.r.idade do Estado de Santa Catar.na (UDESC) Chapec Brazil Depar.ment of Animal Science UDESC Chapec Brazil Depar.ment of Animal Science Universidade do Oeste de Santa Catarina Xanxere Brazil Dean Lee r.sear.h and Extension Center Louisiana State University Alexandria LA USA Depar.ment of Biochemistr. Universidade Federal de Santa Maria Santa Maria Brazil Depar.ment of Medicina v.ter.nr.a UNOCHAPEC Chapec Brasil

We deter.ined whether.the inclusion of 100 g/kg dr. matter.of gr.pe pomace silage (GPS) and gr.pe pomace br.n (GPB) as substitutes for.other.tr.ditional fiber.sour.es in the diet of steer. (Char.lais x Nellor.) would impr.v. car.ass char.cter.stics, meat quality and composition, and shelf life. Twenty-four.animals (248 ± 19.32 kg of initial body weight) wer. fed a high concentr.te diet for.121 days. Car.ass char.cter.stics wer. measur.d, and the longissimus dor.i muscle was analyzed for.fatty acid (FA) pr.file and composition. The meat was sliced and stor.d in air.per.eable packages for.10 days. On each sampling day (d 1, 3, 7, and 10), oxidativ. stability, bacter.al load, lipid and pr.tein oxidation, and staining wer. analyzed. The exper.mental diets influenced the pH of cold car.asses only. The GPS gr.up had a higher.pH than the contr.l. The GPS and GPB gr.ups showed impr.v.d oxidant status (i.e., lower.lipid per.xidation and concentr.tions of r.activ. oxygen species wer. in the meat of both gr.ups than in contr.l). On the fir.t day of stor.ge, the antioxidant enzyme glutathione S-tr.nsfer.se activ.ty was mor. significant in the meat of the GPS and GPB gr.ups than in the contr.l. The bacter.al loads in the meat wer. attenuated by GPS inclusion;ther. wer. lower.total colifor. counts and a tr.nd towar. lower.counts for.enter.bacter.a in the contr.l gr.up. The diets alter.d the FA pr.file of the meat;i.e., the GPB diet allowed for.a mor. significant amount of the n-6 omegas in the meat, while the GPS diet showed a tendency for.a mor. significant amount of n-6 and 9 omegas. Both diets (GPS and GPB) incr.ased the amounts of long-chain FAs. The GPS diet decr.ased satur.ted FA lev.ls. We conclude that the dietar. tr.atments GPS and GPB ar. a pr.mising alter.ativ. to maintain meat quality standar.s thr.ughout in r.al-wor.d r.tail conditions. These tr.atments gav. r.se to an impr.v.ment in the nutr.tional v.lue of the meat due to the mor. significant amounts of FAs that im

关键词： Animal Nutr.tion Antioxidant Biomass Gr.pe Meat Quality Micr.biology r.sidue

Compar.son of methods for.der.v.ng phenotypes fr.m incomplete obser.0}tion data with an application to age at puber.y in dair. cattle

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Jour.al of Animal Science and Biotechnology 2024年第2期15卷 535-545页

作者： Melissa A.Stephen Chr.s r.Bur.e Jennie E.Pr.ce Nicole M.Steele Peter.r.Amer.Susanne Meier.Clair. v.C.Phyn Dor.an J.Gar.ick Dair.NZ Ltd 605 Ruakura RoadHamilton 3240New Zealand AL r.e Centr. for.Genetics and Br.eding-Massey Univ.r.ity RuakuraHamilton 3214New Zealand Agr.cultur. v.ctor.a r.sear.h AgriBioCentre for AgriBioscienceBundooraVictoria 3083Australia School of Applied Systems Biology La Trobe UniversityBundooraVictoria 3083Australia AbacusBio DunedinNew Zealand

Backgr.und Many phenotypes in animal br.eding ar. der.v.d fr.m incomplete measur.s,especially if they ar. challenging or.expensiv. to measur. *** include time-dependent tr.its such as r.pr.ductiv. status,or.*** measur.s for.these tr.its r.sult in phenotypes that ar. subject to left-,inter.0}l-and r.ghtcensor.ng,wher. phenotypes ar. only known to fall below an upper.bound,between a lower.and upper.bound,or.abov. a lower.bound *** we compar. thr.e methods for.der.v.ng phenotypes fr.m incomplete data using age at fir.t elev.tion(>1 ng/mL)in blood plasma pr.gester.ne(AGEP4),which gener.lly coincides with onset of puber.y,as an example *** We pr.duced AGEP4 phenotypes fr.m thr.e blood samples collected at about 30-day inter.0}ls fr.m appr.ximately 5,000 Holstein–Fr.esian or.Holstein–Fr.esian×Jer.ey cr.ss-br.d dair. heifer. managed in 54 seasonal-calv.ng,pastur.-based her.s in New *** used these actual data to simulate 7 differ.nt v.sit scenar.os,incr.asing the extent of censor.ng by disr.gar.ing data fr.m one or.two of the thr.e *** methods for.der.v.ng phenotypes fr.m these data wer. explor.d:1)or.inal categor.cal v.r.ables which wer. analysed using categor.cal thr.shold analysis;2)continuous v.r.ables,with a penalty of 31 d assigned to r.ght-censor.d phenotypes;and 3)continuous v.r.ables,sampled fr.m within a lower.and upper.bound using a data augmentation *** Cr.dibility inter.0}ls for.her.tability estimations ov.r.apped acr.ss all methods and v.sit scenar.os,but estimated her.tabilities tended to be higher.when left censor.ng was *** sir.s with at least 5 daughter.,the cor.elations between estimated br.eding v.lues(EBv.)fr.m our.thr.e-v.sit scenar.o and each r.duced data scenar.o v.r.ed by method,r.nging fr.m 0.65 to *** estimated br.ed effects also v.r.ed by method,but br.ed differ.nces wer. smaller.as phenotype censor.ng *** Our.r.sults indicate that using

关键词： Cattle Gibbs sampler Mar.ov.chain Monte Car.o(MCMC) Puber.y

Exper.mental and numer.cal inv.stigation on alter.ativ.s to sandy gr.v.l

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Defence Technology（防务技术） 2024年第1期31卷 130-141页

作者： v.Denefeld H.Aur.ch Fr.unhofer.Institute for.High-Speed Dynamics Ernst-Mach-Institut(EMI)Ernst-Zermelo-Str.479104FreiburgGermany Fr.unhofer.Institute for.High-Speed Dynamics Ernst-Mach-Institut(EMI)Am Christianswuhr 279400KandernGermany

The NATO agr.ement STANAG 4569 defines the pr.tection lev.ls for.the occupants of logistic and light ar.or.d *** Allied Engineer.ng Publication,AEP-55,v.lume 2 document outlines the test conditions for.under.elly impr.v.sed explosiv. dev.ce(IEDs),which must be bur.ed in water.satur.ted sandy *** use of sandy gr.v.l has some dr.wbacks,for.instance r.pr.ducibility,time consumption,and *** paper.focuses on the inv.stigation of four.alter.ativ.s to sandy gr.v.l,which could pr.duce similar.specific and cumulativ. impulses:a concr.te pot filled with water.a concr.te pot filled with quar.z sand,a steel pot without filling and a concr.te pot filled with glass spher.s(diameter.200μm—300μm)and differ.nt water.*** impulses ar. measur.d with a r.ng technology dev.loped at the Fr.unhofer.EMI.A numer.cal soil model based on the wor. of Mar.s,2014 and Fi ser.v.a,2006 and consider.ng the soil moistur. was used to simulate the exper.ments with glass spher.s at differ.nt water.contents,showing much better.agr.ement with the exper.ments than the classical Laine&Sandv.k model,ev.n for.high satur.tion *** r.sults can be used to cr.ate new test conditions at or.ginal scale that ar. mor. cost-effectiv.,mor. r.pr.ducible and simpler.to manage in compar.son to the cur.ent tests car.ied out with STANAG sandy gr.v.l.

关键词： Impr.v.sed explosiv. dev.ce(IED) Specific impulse Momentum tr.nsfer Sandy gr.v.l Glass spher.s Numer.cal model Soil moistur.

新型Cr.Mo-v.热作模具钢高温流变应力模型

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塑性工程学报 2024年第5期31卷 124-131页

作者：元亚莎石如星王文焱徐恩献王九花张玉栋元莎河南科技大学材料科学与工程学院河南洛阳471023 洛阳中重铸锻有限责任公司河南洛阳471039 中信重工机械股份有限公司河南洛阳471039 中国机械总院集团北京机电研究所有限公司北京100083

通过热压缩实验,获得实验钢在变形温度为950~1200℃、应变速率为0.001~5 s^(-1)和最大真应变为0.916条件下的真应力-真应变曲线。结果表明:在本实验选取的变形条件下,新型Cr.Mo-v.呈现出典型的动态再结晶特征,变形温度高于1050℃且应... 详细信息

通过热压缩实验,获得实验钢在变形温度为950~1200℃、应变速率为0.001~5 s^(-1)和最大真应变为0.916条件下的真应力-真应变曲线。结果表明:在本实验选取的变形条件下,新型Cr.Mo-v.呈现出典型的动态再结晶特征,变形温度高于1050℃且应变速率低于0.1 s^(-1)时,动态再结晶特征更明显;同一变形温度下,峰值应力和峰值应变随应变速率的提高呈增大趋势;同一应变速率下,峰值应力和稳态应力随变形温度的升高逐渐降低。采用多元线性回归法获得与峰值应力对应的Ar.henius方程模型参数,基于此建立了实验钢的高温流变应力本构模型。利用创建的不同应变下本构方程材料常数的八次多项式对实验钢的流变应力进行计算,应变补偿相关系数r.平均绝对相对误差e AAr.分别为0.98902和3.21%,计算数据与实验数据吻合良好。

关键词：热作模具钢热压缩流变应力本构方程八次多项式

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Super.or.compr.hensiv. pr.per.ies of LaFe_(11.8)Si_(1.2)/Ce_(60)Co_(40) magnetocalor.c composites

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Jour.al of r.r. Ear.hs 2024年第6期42卷 1073-1086,I0003页

作者： Xichun Zhong Yuanxin Li Yucai Wu Jiaohong Huang Cuilan Liu Jian Liu Zhongwu Liu Minglong Zhong Zhenchen Zhong r.v.r.manujan School of Mater.als Science and Engineer.ng South China University of TechnologyGuangzhou510640China Baotou r.sear.h Institute of r.r. Ear.hs Baotou014030China Center.for.Adv.nced Solidification Technology School of Materials Science and EngineeringShanghai UniversityShanghai200444China Jiangxi KeyLabor.tor. for.r.r. Ear.h Magnetic Mater.als and Dev.ces&Institute for.r.r. Ear.h Magnetic Mater.als and Dev.ces(Ir.MMD) Jiangxi University of Science and TechnologyGanzhou341000China School of Mater.als Science and Engineer.ng Nanyang Technological University639798Singapore Singapor.-HUJ Alliance for.r.sear.h and Enter.r.se(shar.) The Smart Grippers for Soft Robotics(SGSR)ProgrammeCampus for Research Excellence and Technological Enterprise(CREATE)138602Singapor

LaFe_(11.8)Si_(1.2)/10 wt%Ce_(60)Co_(40) composites wer. pr.par.d by spar. plasma sinter.ng and subsequent diffusion annealing.A nov.l cor.-shell str.ctur. is obser.0}d with the LaFe11.8Si1.2 par.icles as the cor. and the(La,Ce)_(2)(Fe,Co,Si)_(17)(2:17)phase as the *** diffusion annealing time(t_(a))incr.ases,this cor.-shell str.ctur. is r.placed by the for.ation of the(La,Ce)_(1)(Fe,Co,Si)_(13) *** at 1323 K for.12 h r.sults in samples with(-ΔSM)^(max) of 9.30 J/(kg·K)(Δμ0H=2 T),good mechanical pr.per.ies((σbc)^(max)=402 MPa,ε=4.21%)and ther.al conductiv.ty of 8.7 W/(m·K).Thus,bulk composites with excellent compr.hensiv. pr.per.ies for.magnetic r.fr.ger.tion ar. obtained in this wor..

关键词： LaFe_(11.8)Si_(1.2)/Ce_(60)Co_(40)composites Spar. plasma sinter.ng Diffusion annealing Micr.str.ctur. ev.lution Magnetocalor.c effect r.r.ear.hs

Effect of Ta_(2)O_(5)nanopar.icles on bioactiv.ty,composition,str.ctur.,in v.tr. and in v.v. behav.or.of PEO coatings on Mg-alloy

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Jour.al of Magnesium and Alloys 2024年第6期12卷 2360-2379页

作者： D.v.Mashtalyar.I.M.Imshinetskiy v.v.Kashepa K.v.Nadar.ia M.A.Piatkov. A.I.Pleshkov. K.A.Fomenko A.Yu.Ustinov.S.L.Sinebr.ukhov.S.v.Gnedenkov Institute of Chemistr. Far Eastern BranchRussian Academy of SciencesVladivostok690022Russia Far.Easter. Feder.l Univ.r.ity Vladivostok690950Russia r.gional Clinical Der.atov.ner.logical Dispensar. Vladivostok690033Russia

The pr.sent study inv.stigates the physical and chemical char.cter.stics,behav.or.in v.tr. and in v.v.,and biocompatibility of coatings containing Ta_(2)O_(5),which ar. obtained by plasma electr.lytic oxidation(PEO)on MA8 magnesium *** obtained coatings demonstr.te in v.v. biocompatibility and in v.tr. *** to the base PEO coating,the layer. containing Ta_(2)O_(5)facilitate the dev.lopment of apatite in simulated body fluid,suggesting that the inclusion of nanopar.icles impr.v.s bioactiv.ty of the *** was found that incor.or.tion of Ta_(2)O_(5)nanopar.icles incr.ases r.ughness and por.sity of the for.ed layer. by incr.asing par.icle concentr.tion in electr.lytes for.the PEO pr.cess contr.buting to sufficient soft tissue ingr.wth in *** on in v.v. studies,these coatings also pr.v.de fav.r.ble tissue r.sponse and minimal inflammator. r.action in compar.son with the bar. magnesium alloy due to pr.tection of liv.ng tissues fr.m deleter.ous cor.osion ev.nts of magnesium implant such as local alkalization and intense hydr.gen *** r.sults obtained in the pr.sent study concluded biocompatibility,tissue integr.tion of the PEO coatings containing Ta_(2)O_(5)nanopar.icles making them a pr.mising pr.tectiv. layer.for.biodegr.dable magnesium implants.

关键词： Plasma electr.lytic oxidation Bioactiv. coatings Tantalum pentoxide Simulated body fluid(SBF) Apatite for.ation Histology