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移民政策困扰休斯敦灾后重建遭遇阻力

商业周刊（中文版） 2017年第19期 29-31页

作者： margaret newkirk Thomas Black Prashant Gopal 永年

荷塞·萨默迪奥（José Zamudio）在达拉斯郊区打零工，每小时最多能挣到15美元。他正在考虑搬到休斯敦，在飓风“哈维”过后帮助该城市重建。只是他心里还有一丝警惕：“如果我看到警察抓了很多人，或是移民经常遭到警方突击检查，那... 详细信息

荷塞·萨默迪奥（José Zamudio）在达拉斯郊区打零工，每小时最多能挣到15美元。他正在考虑搬到休斯敦，在飓风“哈维”过后帮助该城市重建。只是他心里还有一丝警惕：“如果我看到警察抓了很多人，或是移民经常遭到警方突击检查，那我会去其他州。”萨默迪奥是非法移民，他的妻子和三个孩子住在墨西哥城市塞拉亚，他是在15个月前北上美国找工作的。

关键词：移民政策休斯敦灾后重建阻力非法移民达拉斯墨西哥城市

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共和党遇上大麻难题

商业周刊（中文版） 2018年第2期 34-36页

作者： Karen Weise Sahij Kapur Jennifer Kaplan margaret newkirk Drake Bennett Steven T.Dennis 汪泽

唐纳德·特朗普（Donald Trump）在竞选总统期间承诺，将大麻是否合法的问题留给各州自行决定。然后他选择了杰夫·塞申斯（Jeff Sessions）出任司法部长，他的上述承诺出现变化就只是时间问题了。塞申斯长久以来都希望打击大麻。

关键词：大麻共和党司法部长时间问题特朗普承诺

Weldability and Microstructure of Nickel-Silicon Based Alloys

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Journal of Iron and Steel Research International 2006年第3期13卷 61-67页

作者： LIU Qing-cai LIU Yi YANG Jian J. W. newkirk ZHANG Shan-hong State Key Laboratory of Mechanical Transmissions Chongqing University Chongqing 400044 China Department of Metallurgical Engineering University of Missouri-Rolla Rolla MO 65401 USA Yuanda Environmental Protection Co Ltd Chorgqing 400060 China

The NiSix based alloy typically has poor weldability due to its lower ductility. A limited amount of work has been performed on the weldability of NiSix based alloys. Therefore, the effect of heat treatment and welding parameters on weldability of the alloys, and the relationship between the weldability and microstructure were studied. The results show that the as-cast Ni-Si-Nb-B alloy （Ni 76. 5%, Si 20%, Nb 3%, and B 0. 5%） could be successfully welded after preheating at 600 ℃. The welding procedure should be performed on the alloys before any heat treatment and a preheating at 600 ℃ should be used. The fusion zone is harder than the matrix due to a large amount of 7 phase and a finer microstructure. The cracks are predominantly intergranular in heat affected zone and associated with the needle-like ）, phase. The heat treatment before welding increases the tendency of cracking in the fusion zone.

关键词： weldability Ni3Si based alloy heat treatment heat affected zone

Microstructures and Corrosion Resistance of Al_2O_3-C Based Refractories to the Melts Containing Titania

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China's Refractories 2002年第1期11卷 3-8页

作者： LIUQingai W.newkirk 等 CollegeofMaterialsScienceandEngineering ChongqingUniversityChongqingP.R.China400044 DepartmentofMetallurgicalEngineering UniversityofMissouri－RollaRollaMO65409USA

The corrosion resistance of the Al2O3-C based refractories in melts containing titania has been studied by quasi-station immersion and rotary immersion. The corrosionrate is decreased with the addition of graphite carbon, and ZrO2 in the refractories . The corrosion, mechanism of Al2O3-C refractories, is. the oxidization of graphite carbon by the oxides of the melts the formation of deteriorate layer, For the Al2O3-C-ZrO2 refractories, the corrosion behavior is due to the, interaction between melts and refractories . The new compounds of FeO. SiO2, SiZrO4, FeO. 3 CaO, 2CaO. SiO2 and CaO. SiO2 are formed in the deteriorate layer.

关键词： Melts Alumina-carbon based refractory Immersion test Corrosion resistance

Diet medication and beta-glucanase affect ileal digesta soluble betaglucan molecular weight,carbohydrate fermentation,and performance of coccidiosis vaccinated broiler chickens given wheatbased diets

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Animal Nutrition 2023年第4期15卷 288-296页

作者： Namalika D.Karunaratne Henry L.Classen Andrew Gvan Kessel Michael R.Bedford Nancy P.Ames Rex W.newkirk Department of Animal and Poultry Science University of SaskatchewanSaskatoonSK S7N5A8Canada AB Vista MarlboroughWiltshireSN84ANUnited Kingdom Agriculture and Agri-Food Canada WinnipegR3T 2E1ManitobaCanada

Exogenous enzymes as alternatives to feed antibiotics in poultry has become an emerging research area with the emergence of antibiotic *** objective was to evaluate the effects of diet medication(antibiotics)andβ-glucanase(BGase)on digesta solubleβ-glucan depolymerization,carbohydrate fermentation,and performance of coccidiosis-vaccinated broiler chickens fed wheat-based diets.A total of 1,782 broilers were raised on litter floor pens,and each treatment was assigned to 1 pen in each of the9 *** 3 dietary treatments were based on wheat as the sole grain(control,control+medication and control+0.1%BGase),and the birds were fed the respective treatments ad libitum from 0 to 33 *** were arranged in a randomized complete block design and analyzed as a one-way ***-glucanase reduced the peak molecular weight,weight average molecular weight(Mw)and maximum molecular weight for the smallest 10%β-glucan molecules(MW-10%)in ileal digesta at d 11and 33,whereas diet medication reduced Mw and MW-10%at d 33 compared to the control(P<0.01).Beta-glucanase and medication reduced the ileal viscosity at d 11 compared to the control(P=0.010).Ileal propionic acid concentration at d 11 and caecal total SCFA,acetic,and butyric acid concentrations at d 33 were lower in the BGase-supplemented diet than in the control(P<0.05).The BGase-added diet had higher duodenal p H compared to the control at d 33(P=0.026).The effect of medication on carbohydrate fermentation was *** medication increased weight gain after d 11,whereas BGase increased the gain for the total trial period compared to the control(P<0.001).Feed intake was not affected by the dietary *** and BGase improved feed efficiency after d 11 compared to the control(P<0.001).The response to diet medication was larger than BGase,considering weight gain and feed efficiency after d 11(P<0.001).In conclusion,diet medication and BGase depolymerized high molecular weight ileal solubleβ-g

关键词： Beta-glucan Prebiotic Non-starch polysaccharide Soluble fiber Feed antibiotic

Hulless barley and β-glucanase affect ileal digesta soluble β-glucan molecular weight and digestive tract characteristics of coccidiosis-vaccinated broilers

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Animal Nutrition 2021年第3期7卷 595-608页

作者： Namalika D.Karunaratne Rex W.newkirk Nancy P.Ames Andrew G.Van Kessel Michael R.Bedford Henry L.Classen Department of Animal and Poultry Science University of SaskatchewanSaskatoonS7N 5A8SaskatchewanCanada Agriculture and Agri-food Canada WinnipegR3T 2E1ManitobaCanada AB Vista MarlboroughWiltshireSN84ANUnited Kingdom

Exogenousβ-glucanase(BGase)in barley-based feed has been shown to reduce digesta viscosity in chickens,and thereby improve *** well studied is the potential for BGase to convert barleyβ-glucan into low molecular weight carbohydrates,which might influence digestive tract function and enteric ***-vaccinated broiler chickens were fed graded levels of hulless barley(HB)and BGase to determine their effects onβ-glucan depolymerization and digestive tract *** were fed highβ-glucan HB(0%,30%and 60%replacing wheat)and BGase(0%,0.01%and 0.1%)in a 3×3 factorial arrangement.A total of 5,346 broilers were raised in litter floor pens and vaccinated for coccidiosis on d *** treatment was assigned to 1 pen in each of 9 *** significance level was set at P≤*** both 11 and 33 d of broiler ages,peak molecular weight ofβ-glucan in ileal digesta decreased with increasing BGase for 30%and 60%*** maximum molecular weight for the smallest 10%β-glucan molecules(MW-10%)decreased with BGase at both ages for 30%and 60%HB;for birds fed 0%HB,only 0.1%BGase decreased MW-10%.The 0.1%BGase increased caecal short chain fatty acids(SCFA)compared to the 0.01%BGase at d 11 only for the 60%*** pH increased with increasing HB and BGase at d 11 and *** pH was lower for 0.1%BGase than 0%BGase for 60%HB at d *** mRNA expression of interleukin 6(IL-6)and IL-8 in the ileum increased with 0.1%BGase at d 11 and 33,respectively,whereas expression of ileal mucin 2(MUC2)decreased with 0.1%BGase at d *** the caeca,interactions between HB and BGase were significant for monocarboxylate transporter 1(MCT1)and mucin 5AC(MUC5AC)on d 11,but no treatment effects were found at d *** conclusion,BGase depolymerized high molecular weightβ-glucan in HB in a dose-dependent *** barley and BGase did not increase SCFA concentrations(except for 60%HB with 0.1%BGase at d 11)and caused minor effects on digestive tract histomorphological

关键词： Prebiotic Non-starch polysaccharide Fermentation Short-chain fatty acid Feed enzyme

POLYCULTURE OF SCALLOP CHLAMYS FARRERI AND KELP LAMINRIA JAPONICA IN SUNGO BAY

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Chinese Journal of Oceanology and Limnology 1996年第4期14卷 322-329页

作者：方建光孙惠玲燕敬平匡世焕李锋 GaryF.newkirk Jon Grant Yellow Sea Fisheries Research Institute Chinese Academy of Fisheries Science Qingdao 266003 Biology Department Dalhousie University Halifax Nova Scotia Canada B3H 4J1 Department of Oceanography Dalhousie University Halifax Nova Scotia Canada. B3H 4J1

Several polyculture models of scallop Chlamys farreri and kelp Laminaria japonica currently employedin Sungo Bay and other parts of northern China are described in this paper. Economic benefits of differ-ent polyculture models are analysed based on the growth rate, culture density and market price. In addi-tion, site selection, critical environmental conditions and polyculture problems are discussed in detail.

关键词： polyculture scallop kelp shallow sea economic benefit

Nanoparticle-Mediated Genetic Engineering of Plants

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Molecular Plant 2019年第8期12卷 1037-1040页

作者： Jeffrey W.Wang Eduardo G.Grand io Gregory M.newkirk Gozde S.Demirer Salwan Butrus Juan Pablo Giraldo Markita P.Landry Department of Chemical and Biomolecular Engineering University of CaliforniaBerkeleyCA 94720USA Department of Chemical Engineering University of MichiganAnn ArborMI 48103USA Department of Botany and Plant Sciences University of CaliforniaRiversideCA 92521USA Institute of Integrative Genome Biology (IIGB) RiversideCA 92521USA Innovative Genomics Institute (IGI) BerkeleyCA 94720USA California Institute for Quantitative Biosciences QB3University of CaliforniaBerkeleyCA 94720USA Chan-Zuckerberg Biohub San FranciscoCA 94158USA

Genetic engineering of plants is at the core of sustainability efforts,natural product synthesis,and agricultural crop *** past several decades have brought remarkable progress in biotechnology with the improvement of genome editing and sequencing tools,which stand to advance plant synthetic biology and *** agriculture,genetic engineering can be employed to create crops that have in creased yields and nu tritio nal value,are resista nt to herbicides,in sects,diseases,and abiotic stresses,in cludi ng drought and heat .In pharmaceuticals and therapeutics,genetically engineered plants can be used to synthesize valuable small-molecule drugs and recombinant proteins.

关键词： Nanoparticle-Mediated Genetic Engineering Plants biotechnology