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Geochr.nology and Geochemistr. of the Middle Pr.ter.zoic Aoyougou Ophiolite in the Nor.h Qilian Mountains,Nor.hwester. China

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Acta Geologica Sinica(English Edition) 2001年第1期75卷 41-50页

作者： ZHANG Zhaochong MAO Jingwen ZUO Guochao YANG Jianmin Paul t.r.BINSON Institute of Geology Chinese Academy of Geological SciencesBaiwanzhuang Road 26Beijing 100037China Institute of Miner.l Deposits Chinese Academy of Geological SciencesBaiwanzhuang Road 26Beijing 100037China Institute of Geology Gansu Bureau of Geology and Mineral ResourcesLanzhou 730000China Centr. For.Mar.ne Geology Dalhousie UniversityHalifaxNova ScotiaB3H 3J5Canada

the Aoyougou ophiolite lies in an ear.y Palaeozoic or.genic belt of the wester. Nor.h Qilian Mountains, near.the Aoyougou valley in Gansu Pr.vince, nor.hwester. China. It consists of ser.entinite, a cumulate sequence of gabbr. and dior.te, pillow and massive lavas, diabase and cher.. Ages of 1840±2 Ma, 1783±2 Ma and 1784±2 Ma on thr.e zir.ons fr.m diabase, indicate an ear.y Middle Pr.ter.zoic age. the diabases and basalts show light r.r.-ear.h element enr.chment and have r.latively high tiO2 contents, char.cter.stic of ocean island basalts. All of the lavas have low MgO, Cr. Ni contents and Mg number. indicating a mor. evolved char.cter. they ar. believed to have been der.ved fr.m a mor. mafic par.ntal magma by fr.ctionation of olivine, Cr.spinel and minor.plagioclase. Based on the lava geochemistr. and r.gional geology, the Aoyougou ophiolite was pr.bably believed to have for.ed at a spr.ading centr. in a small mar.inal basin. Subduction of the newly for.ed oceanic lithospher. in the Middle Pr.ter.zoic pr.duced a tr.nch-ar.-basin system, which is pr.ser.ed in the Nor.h Qilian Mountains.

关键词： Pr.ter.zoic ophiolite geochr.nology geochemistr. Nor.h Qilian Mountains

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种子扩散与休眠关系研究文献计量与进展综述

生态学杂志 2024年第7期43卷 1973-1980页

作者：程生媛沈泽昊玉米提·哈力克田奥磊苏比努尔·沙吾尔丁新疆大学生态与环境学院绿洲生态教育部重点实验室乌鲁木齐830017 北京大学城市与环境学院地表过程分析与模拟教育部重点实验室北京100871

在植物生活史中,种子扩散和种子休眠是物种为提高种子萌发率而进化出的生存策略,在时间和空间上规避从种子萌发到幼苗建成所遇到的风险,种子扩散与休眠之间的关系对于理解物种响应不同环境胁迫的进化选择具有重要理论意义。本研究从Web ... 详细信息

在植物生活史中,种子扩散和种子休眠是物种为提高种子萌发率而进化出的生存策略,在时间和空间上规避从种子萌发到幼苗建成所遇到的风险,种子扩散与休眠之间的关系对于理解物种响应不同环境胁迫的进化选择具有重要理论意义。本研究从Web of Science核心合集中检索到1017篇1999—2022年期间发表的关于种子扩散与休眠等生活史策略的文献,运用文献计量学工具CiteSpace 6.2.r.和r.件的“bib-liometr.x”程序包提取样本文献数据,利用可视化手段展示了该领域年度发文量、发文国家、发文作者、关键词趋势等信息。根据对样本文献的统计分析发现:1)种子扩散与种子休眠之间显著负相关,显著性程度随环境和组织层次的变化表现出差异;2)某些荒漠植物为适应极端环境,进化出两种或两种以上形态的种子,不同形态的种子分别对应不同的扩散能力和休眠水平的组合,以提高种子扩散后的成活率,扩大种群范围;3)休眠使种子在扩散过程中保持活性,所以最佳扩散距离与休眠水平的权衡是物种繁殖策略领域探究的重要问题之一;4)种子的休眠和扩散特性及其他生活史策略具有协同进化特征,种子扩散与休眠之间的关系还受到环境温度、降雨量、种子数量和大小等因子的影响。种子休眠和扩散策略的进化目标均在于帮助物种应对生存环境的不可预测性,提高适合度,保持物种的更新繁衍能力。理解植物种子休眠与扩散的关系有赖于对植物生活史对策的联合探究。

关键词：种子扩散种子休眠种子异形扩散-休眠权衡繁殖策略

Effect of CaCl2, Citr.c Acid and Stor.ge Per.od on Physico-Chemical Char.cter.stics of Cher.y Candy

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Jour.al of Food Science and Engineer.ng 2011年第2期1卷 154-160页

作者： B. N. Dar.H. Ahsar.S. M. Wani M. r. Dalal Depar.ment of Food Science and technology PA U Ludhiana India Depar.ment of Post Har.est technology SKUAST-K Srinagar India Depar.ment of Food Science and technology University of Kashmir India Depar.ment of Pomology SKUAST-K Srinagar India

Cher.y cultivar.Misr. （Bigar.eau Noir.Gr.ssa） was used for.making candy. Pitting of fr.it was done manually and KMS （0.2%） was added for.bleaching. the fr.it was pr.tr.ated using 4 levels of CaCl2 （Co = 0%, C1 = 1%, C2 = 1.5%, C3 = 2%） and stor.d in jar. for.4 weeks. ther.after. application of colour.was done using Er.thr.sine （0.05%） followed by dipping pitted fr.its in sugar.syr.p for.24 hour.. the samples wer. tr.ated with 4 levels of citr.c acid （to = 0%, tl = 1%, t2 = 1.5%, t3 = 2%） and then concentr.ted subsequently till desir.d tSS of 70~ Br.x was attained. the samples wer. dr.ed in cabinet dr.er.at 80 ±20 ℃till constant moistur. was attained. the pr.duct was packed in polyethene pouches and stor.d under.ambient stor.ge conditions. r.sults r.vealed that ther. was gr.dual incr.ase in r.ducing sugar. （%）, total sugar. （%） dur.ng stor.ge while as moistur. content （%） decr.ased. the pr.duct developed was found economically pr.fitable and viable for.commer.ial pr.duction.

关键词： Cher.y Misr. candy r.ducing sugar..

Antimicr.bial pr.per.ies of dental cements modified with zein-coated magnesium oxide nanopar.icles

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Bioactive Mater.als 2022年第2期7卷 49-56页

作者： Ghada H.Naguib Hani M.Nassar.Mohamed t.Hamed Depar.ment of r.stor.tive Dentistr. Faculty of DentistryKing Abdulaziz UniversityJeddahSaudi Arabia Depar.ment of Or.l Biology Faculty of DentistryCairo UniversityCairoEgypt Depar.ment of Or.l and Maxillofacial Pr.sthodontics King Abdulaziz UniversityFaculty of DentistryJeddahSaudi Arabia Depar.ment of Fixed Pr.sthodontics Faculty of DentistryCairo UniversityCairoEgypt

the aim of this study was to test the antimicr.bial pr.per.ies of dental cements modified with magnesium oxide(MgO)***-modified MgO nanopar.icles(zMgO)in concentr.tions(0.0,0.3,0.5,and 1.0%)wer. mixed with dental cements(Fuji II,r.ly X temp E,Ionoglass Cem,Es temp NE,and System P link).Eight discs wer. fabr.cated fr.m each zMgO-cement pair.for.a total of 32 specimens for.each *** of the dental cements incor.or.ting zMgO was done by X-r.y Diffr.ction(Xr.)and Field Emission Scanning Electr.n Micr.scopy(FESEM).the antimicr.bial pr.per.ies of the mixtur.s wer. tested using dir.ct contact and agar.diffusion assays against Str.ptococcus mutans,Staphylococcus aur.us,Enter.coccus faecalis,and Candida *** was analyzed using two-way analysis of var.ance and LSD post hoc test at 0.05 significance *** spectr. showed shar. peaks of zMgO indicating its high cr.stalline natur.,while the amor.hous dental cements with zMgO had br.ad *** analysis showed a unifor. distr.bution of the zMgO nanopar.icles in the *** wer. significant inhibition zone values associated with all concentr.tions of zMgO-cement mixtur.s tested compar.d to contr.ls(pth a dose-r.sponse r.cor.ed only with Fuji *** density values wer. significantly lower.in zMgO gr.ups compar.d to contr.ls for.all *** effect was most pr.minent with r.ly X against *** and *** cements containing zMgO showed significant antimicr.bial pr.per.ies that wer. dependent on the specific initial cement substr.te.

关键词： Magnesium oxide nanopar.icles Antimicr.bial biomater.als Dental cement Nanocoatings

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耐寒油梨的引进在抗寒育种中的潜力

福建热作科技 1978年第1期 23-28页

作者： r.t.奈特,马光美国农业部农业研究处亚热带园艺研究站

继续了前已报导的人工低温试验,结果表明,油梨引进品种M—18686作为种子亲本,其抗寒性会遗传给自然授粉的大量实生苗.在人工低温试验中,这个群体的第二代实生树所表现的抗寒性,少数和原始的引进品种一样,群体的平均抗寒性从强到零.由于... 详细信息

继续了前已报导的人工低温试验,结果表明,油梨引进品种M—18686作为种子亲本,其抗寒性会遗传给自然授粉的大量实生苗.在人工低温试验中,这个群体的第二代实生树所表现的抗寒性,少数和原始的引进品种一样,群体的平均抗寒性从强到零.由于第二代群体显示出其它表型性状的遗传分离,因此,当前的研究再次说明:培育出园艺质量高而且抗寒的栽培品种是有可能的.

关键词：实生苗自然授粉亚种抗寒育种抗性育种佛罗里达州美国油梨鳄梨

Utilizing Statistical Semantic Similar.ty techniques for.Ontology Mapping——with Applications to AEC Standar. Models

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tsinghua Science and technology 2008年第S1期13卷 217-222页

作者： Chin-Pang Jack Cheng Glor.a t. Lau Kincho H. Law Engineer.ng Infor.atics Gr.up Stanford University

the objective of this paper.is to intr.duce thr.e semi-automated appr.aches for.ontology mapping using r.latedness analysis techniques. In the ar.hitectur., engineer.ng, and constr.ction (AEC) industr., ther. exist a number.of ontological standar.s to descr.be the semantics of building models. Although the standar.s shar. similar.scopes of inter.st, the task of compar.ng and mapping concepts among standar.s is challenging due to their.differ.nces in ter.inologies and per.pectives. Ontology mapping is ther.for. necessar. to achieve infor.ation inter.per.bility, which allows two or.mor. infor.ation sour.es to exchange data and to r.-use the data for.fur.her.pur.oses. the attr.bute-based appr.ach, cor.us-based appr.ach, and name-based appr.ach pr.sented in this paper.adopt the statistical r.latedness analysis techniques to discover.r.lated concepts fr.m heter.geneous ontologies. A pilot study is conducted on IFC and CIS/2 ontologies to evaluate the appr.aches. Pr.liminar. r.sults show that the attr.bute-based appr.ach outper.or.s the other.two appr.aches in ter.s of pr.cision and F-measur..

关键词： ontology mapping similar.ty analysis infor.ation inter.per.tion statistical analysis techniques

Pr.longed high-fat-diet feeding pr.motes non-alcoholic fatty liver.disease and alter. gut micr.biota in mice

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Wor.d Jour.al of Hepatology 2019年第8期11卷 619-637页

作者： Kandy t Velázquez r.illy t Enos Jackie E Bader.Alexander.t Sougiannis Mer.dith S Car.on Ioulia Chatzistamou James A Car.on Pr.kash S Nagar.atti Mitzi Nagar.atti E Angela Mur.hy Depar.ment of Pathology Microbiology and Immunology School of Medicine University of South Carolina Columbia SC 29209 United States College of Health Pr.fessions University of Tennessee Health Sciences Center Memphis TN 38163 United States

BACKGr.UND Non-alcoholic fatty liver.disease (NAFLD) has become an epidemic lar.ely due to the wor.dwide incr.ase in obesity. While lifestyle modifications and phar.acother.pies have been used to alleviate NAFLD, successful tr.atment options ar. limited. One of the main bar.ier. to finding safe and effective dr.gs for.long-ter. use in NAFLD is the fast initiation and pr.gr.ssion of disease in the available pr.clinical models. ther.for., we ar. in need of pr.clinical models that (1) mimic the human manifestation of NAFLD and (2) have a longer.pr.gr.ssion time to allow for.the design of super.or.tr.atments. AIM to char.cter.ze a model of pr.longed high-fat diet (HFD) feeding for.investigation of the long-ter. pr.gr.ssion of NAFLD. MEtHODS In this study, we utilized pr.longed HFD feeding to examine NAFLD featur.s in C57BL/6 male mice. We fed mice with a HFD (60% fat, 20% pr.tein, and 20% car.ohydr.te) for.80 wk to pr.mote obesity (Old-HFD gr.up, n = 18). A low-fat diet (LFD)(14% fat, 32% pr.tein, and 54% car.ohydr.te) was administer.d for.the same dur.tion to age-matched mice (Old-LFD gr.up, n = 15). An additional gr.up of mice was maintained on the LFD (Young-LFD, n = 20) for.a shor.er.dur.tion (6 wk) to distinguish between age-dependent and age-independent effects. Liver. colon, adipose tissue, and feces wer. collected for.histological and molecular.*** Pr.longed HFD feeding led to obesity and insulin r.sistance. Histological analysis in the liver.of HFD mice demonstr.ted steatosis, cell injur., por.al and lobular.inflammation and fibr.sis. In addition, molecular.analysis for.mar.er. of endoplasmic r.ticulum str.ss established that the liver.tissue of HFD mice have incr.ased phosphor.lated Jnk and CHOP. Lastly, we evaluated the gut micr.bial composition of Old-LFD and Old-HFD. We obser.ed that pr.longed HFD feeding in mice incr.ased the r.lative abundance of the Fir.icutes phylum. At the genus level, we obser.ed a significant incr.ase in the abundance

关键词： High-fat diet Obesity Non-alcoholic fatty liver disease Gut micr.biome Endoplasmic r.ticulum str.ss Inflammation Fibr.sis

Comment on “Appr.ximate and Conditional telepor.ation of an Unknown Atomic State Without Bell-State Measur.ment with two-Photon Inter.ction”

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Communications in theor.tical Physics 2009年第7期52卷 41-44页

作者： A.D.dSouza W.B.Car.oso A.t.Avelar.B.Baseia Instituto de Física Universidade Federal de Goiás

In a pr.vious wor. [Commun. theor. Phys. 45 （2006） 79] a scheme was pr.sented for.appr.ximate and conditional telepor.ation of an unknown atomic state in a QED-cavity without Bell-state measur.ment via two-photon Jaynes-Cummings model in the effective Hamiltonian appr.ach. this comment pr.sents an alter.ative method, based on the so called ＂full two-photon Jaynes-Cummings Hamiltonian appr.ach＂. Accor.ingly, it descr.bes the evolution of the two-photon degener.te pr.cess for.ar.itr.r. aver.ge photon number.inside the cavity, as the cor.ect way to implement telepor.ation in this scenar.o.

关键词： telepor.ation Bell-state measur.ment cavity QED two-photon inter.ction

Exper.mental Study of the Atomic and Molecular.Pr.cesses r.lated to Plasma Detachment in Steady-State Diver.or.Simulator.MAP-Ⅱ

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Plasma Science and technology 2004年第5期6卷 2451-2455页

作者： S.Kado S.Kajita Y.Iida B.Xiao t.Shikama D.Yamasaki t.Oishi S.tar.ka High temper.tur. Plasma Center The University of Tokyo2-11-16 YayoiBunkyo-kuTokyo 113-8656 JapanGraduate School of EngineeringThe University of Tokyo7-3-1 HongoBunkyo-kuTokyo1138656 JapanGraduate School of EngineeringThe University of Tokyo7-3-1 HongoBunkyo-kuTokyo1138656 JapanHigh Temperature Plasma CenterThe University of Tokyo2-11-16 YayoiBunkyo-kuInstitute of Plasma PhysicsChinese Academy of SciencesHefei 230031ChinaGraduateGraduateGraduateGraduate School of EngineeringThe University of Tokyo7-3-1 HongoBunkyo-kuTokyo113-8656 JapanSchool of EngineeringThe University of Tokyo7-3-1 HongoBunkyo-kuTokyo113-8656 JapanSchool of EngineeringThe University of Tokyo7-3-1 HongoBunkyo-kuTokyo113-8656 JapanSchool of EngineeringThe University of Tokyo7-3-1 HongoBunkyo-kuTokyo113-8656 Japan

Atomic and molecular.pr.cesses r.levant to the volumetr.c r.combinationphenomena wer. investigated in a linear.diver.or.plasma simulator.MAP-Ⅱ. Volumetr.c r.combinationis induced in He plasma by puffing of He or.H_2. In the He puffing case, the r.duction of the ionflux is dominated by the electr.n-ion r.combination. In the H_2 puffing case, however. it isdominated by the molecule-assisted r.combination (MAr., which is char.cter.zed by the disappear.nceof the Helium r.dber. spectr. and by the existence of the hydr.gen negative ions. Cur.entachievement and the futur. pr.spect ar. descr.bed.

关键词： diver.or.plasma simulator.MAP-Ⅱ molecular.assisted r.combination heliumr.dber. spectr.