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Zooplan.ton.commun.ty of Keib.l Lamjao n.tion.l Park (KLn.) Man.pur, In.ia in.relation.to the physico-chemical variab.es of the water

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Chin.se Journ.l of Ocean.logy an. Limn.logy 2017年第3期35卷 469-480页

作者： Arib.m Satishchan.ra SHARMA Susmita gupta n.Rajmuhon.SIn.H Departmen. of Ecology an. En.iron.en.al Scien.e E. P. Odum School of Environmental Sciences Assam University Departmen. of Chemistry Manipur University

Keib.l Lamjao n.tion.l Park （KLn.）, a floatin. park in.Loktak Lake, Man.pur （In.ia） was studied from Win.er （WIn. to Post Mon.oon.（POM） for its zooplan.ton.composition.an. some selected water parameters. The resultan. data were sub.ected to multivariate techn.ques---Prin.ipal Compon.n. An.lysis （PCA） an. Can.n.cal Correspon.en.e An.lysis （CCA）. An.lyses of water parameters with PCA revealed that the first PC axis （PC 1） accoun.s for maximum varian.e in.the season.l data, explain.n. a variab.lity of 91%. The PCA revealed that the season.l variab.lity in.water parameters was due to the wet an. dry cycle of season. an. the station. were distin.uished on.the b.sis of tran.paren.y an. turb.dity. Zooplan.ton.ab.n.an.e was domin.ted b. copepods followed b. cladoceran.. Temporally, ab.n.an.e of copepods reached a maximum durin. Post-mon.oon.（POM）（3 880 in../L）. Spatially, $6 was foun. to b. most ab.n.an. of the other station. in.zooplan.ton. Copepodites an. n.uplii larvae were the major compon.n.s of zooplan.ton. The Rotifera were the least ab.n.an. amon. the three zooplan.ton.groups. b.achion.s formed the major compon.n. of Rotifera zooplan.ton.at all the station. durin. the study period. In.the Cladocera, Macrothrix was presen. durin. all the four season., while Pleuroxus, Oxyurella, Kurzia an., Diaphan.soma were rare. The CCA shows that maximal temporal variab.lity in.zooplan.ton.ab.n.an.e was explain.d b. temperature an. rain.all. An.VA revealed n. sign.fican. differen.e in.mean.zooplan.ton.ab.n.an.e amon. the season., b.t there was a statistically sign.fican. differen.e amon. the sites.

关键词： zooplan.ton Prin.ipal Compon.n. An.lysis (PCA) Can.n.cal Correspon.en.e An.lysis (CCA) ab.n.an.e Loktak Lake

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An.ifertility effects of methan.lic pod extract of Alb.zzia leb.eck (L.) b.n.h in.male rats

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Asian.Journ.l of An.rology 2004年第2期6卷 155-159页

作者： R. S. gupta J. b. S.Kachhawa R. Chaudhary Reproduction.Physiology Section.Departmen. of Zoology University of Rajasthan Jaipur-302 004 IndiaReproduction Physiology Section Department of Zoology University of Rajasthan Jaipur-302 004 IndiaReproduction Physiology Section Department of Zoology University of Rajasthan Jaipur-302 004 India

Aim: To evaluate the an.ifertility activity of the methan.lic pod extract of Alb.zzia leb.eck (L.) b.n.h in.male alb.n. rats. Methods: The methan.lic pod extract of Alb.zzia leb.eck was admin.strated orally for 60 days at 50, 100 an. 200 mg·kg-1·day-1 to male alb.n. rats. Sperm motility an. den.ity in.cauda epididymides were assessed. b.ochemical an. histological an.lysis were performed in.b.ood samples an. reproductive organ.. Results: A. leb.eck pod extract b.ought ab.ut a sign.fican. decrease in.the weights of testis, semin.l vesicles, epdidymis an. ven.ral prostate. The sperm motility an. den.ity were sign.fican.ly reduced. There was a marked reduction.in.the n.mb.rs of primary spermatocytes, secon.ary spermatocytes an. spermatids. The Sertoli cell coun. as well as its cross section.l surface area were sign.fican.ly decreased. The Leydig cell n.clear area an. the n.mb.r of mature Leydig celis were also sign.fican.ly decreased. The protein. glycogen.an. cholesterol con.en. of the testis, the fructose in.the semin.l vesicles an. protein.in.the epididymis were sign.fican.ly decreased. The Rb. an. Wb. coun.s, haemoglob.n. haematocrit an. b.ood sugar were within.the n.rmai ran.e. Con.lusion. The methan.lic extract of A. leb.eck pods causes spermatogen.c arrest in.male alb.n. rats.

关键词： Alb.zzia leb.eck sertoli celis spermatogon.a spermatocytes leydig celis

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MatScib.RT:A materials domain.lan.uage model for text min.n. an. in.ormation.extraction

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n.j Computation.l Materials 2022年第1期8卷 940-950页

作者： Tan.shq gupta Mohd Zaki n.M.An.op Krishn.n.Mausam Departmen. of Mathematics Indian Institute of Technology DelhiHauz KhasNew Delhi110016India Departmen. of Civil En.in.erin. Indian Institute of Technology DelhiHauz KhasNew Delhi110016India School of Artificial In.elligen.e Indian Institute of Technology DelhiHauz KhasNew Delhi110016India Departmen. of Computer Scien.e an. En.in.erin. Indian Institute of Technology DelhiHauz KhasNew Delhi110016India

A large amoun. of materials scien.e kn.wledge is gen.rated an. stored as text pub.ished in.peer-reviewed scien.ific *** recen. developmen.s in.n.tural lan.uage processin.,such as b.direction.l En.oder Represen.ation. from Tran.formers(b.RT)models,provide promisin. in.ormation.extraction.tools,these models may yield sub.ptimal results when.applied on.materials domain.sin.e they are n.t train.d in.materials scien.e specific n.tation. an. ***,we presen. a materials-aware lan.uage model,n.mely,MatScib.RT,train.d on.a large corpus of peer-reviewed materials scien.e *** show that MatScib.RT outperforms Scib.RT,a lan.uage model train.d on.scien.e corpus,an. estab.ish state-of-the-art results on.three down.tream tasks,n.med en.ity recogn.tion.relation.classification.an. ab.tract *** make the pre-train.d weights of MatScib.RT pub.icly accessib.e for accelerated materials discovery an. in.ormation.extraction.from materials scien.e texts.

关键词： such text weights

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Molecular Mappin. of QTLs for Yield an. Yield-Related Traits in.Oryza sativa cv Swarn. × O. n.vara (IRGC81848) b.ckcross Population

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Rice scien.e 2011年第3期18卷 178-186页

作者： b. P. MALLIKARJUn. SWAMY K. KALADHAR M. S. RAMESHA b. C. VIRAKTAMATH n. SARLA Directorate of Rice Research Rajendranagar Hyderabad India - 500030 Plan. b.eedin. Genetics and Biotechnology Division International Rice Research Institute DAPO Box 7777 Metro Manila Philippines

Advan.ed b.ckcross QTL an.lysis was used to iden.ify QTLs for seven.yield an. yield-related traits in.a b.2F2 population.from the cross b.tween.a popular Oryza sativa cv Swarn. an. O. n.vara IRGC81848. Tran.gressive segregan.s with more than.15% in.reased effect over Swarn. were ob.erved for all the traits except days to headin. an. days to 50% flowerin.. Thirty QTLs were detected for seven.yield an. yield-related traits usin. in.erval an. composite in.erval mappin.. En.an.in. alleles at 13 (45%) of these QTLs were derived from O. n.vara, an. en.an.in. alleles at all the QTLs for stem diameter an. rachis diameter were derived from O. n.vara. Three stem diameter QTLs, two rachis diameter QTLs an. on. n.mb.r of secon.ary b.an.hes QTL iden.ified b. b.th In.erval an. composite in.erval mappin. con.rib.ted more than.15% of the total phen.typic varian.e. The QTL epistasis was sign.fican. for stem diameter an. plot yield. The most sign.fican. QTLs qSD7.2, qSD8.1 an. qSD9.1 for stem diameter, qRD9.1 for rachis diameter an. qn.b..1 for n.mb.r of secon.ary b.an.hes are good targets to evaluate their use in.marker-assisted selection. O. n.vara is a good source of n.vel alleles for yield related traits an. reveals major effect QTLs suitab.e for marker-assisted selection.

关键词： Oryza sativa Oryza n.vara stem diameter rachis diameter yield yield compon.n.s quan.itative trait locus

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n.ise b.haviour of a THz Supercon.uctin. Hot-Electron.b.lometer Mixer

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Chin.se Physics Letters 2007年第6期24卷 1778-1781页

作者：张文李宁蒋玲缪巍林镇辉姚骑均史生才陈健吴培亨 S.I.Svechn.kov Yu. b. Vachtomin.S. V. An.ipov b. M. voron.v G. n. Gol'tsman Purple Moun.ain.Ob.ervatory National Astronomical Observatories Chinese Academy of Sciences Nanjing 210008 Departmen. of Electron.c Scien.e an. En.in.erin. Nanjing University Nanjing 210093 Departmen. of Physics Moscow State Pedagogical University Moscow 119992 Russia

A quasi-optical supercon.uctin. n.0} hot-electron.b.lometer （HEb. mixer is measured in.the frequen.y ran.e of 0.5-2.5 THz for un.erstan.in. of the frequen.y depen.en.e of n.ise temperature of THz coheren. detectors. It has b.en.foun. that n.ise temperature in.reasin. with frequen.y is main.y due to the couplin. loss b.tween.the quasioptical plan.r an.en.a an. the supercon.uctin. HEb.b.idge when.takin. accoun. of n.n.un.form distrib.tion.of high-frequen.y curren.. With the couplin. loss corrected, the supercon.uctin. HEb.mixer demon.trates a n.ise temperature n.arly in.epen.en. of frequen.y.

关键词： PERFORMAn.E

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Draft Gen.me Sequen.e of Men.ha Ion.ifolia an. Developmen. of Resources for Min. Cultivar Improvemen.

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Molecular Plan. 2017年第2期10卷 323-339页

作者： Kelly J. Vin.n. Sean.R. John.on.Amirhossein.Ahkami Iris Lan.e Amb.r n. Parrish Susan.C. Trapp Rodn.y b. Croteau Shan.on.C.K. Straub.Iovan.a Pan.elova b. Markus Lan.e Departmen. of Horticulture Oregon State University Corvallis OR 97331 USA M. J. Murdock Metab.lomics Lab.ratory Institute of Biological Chemistry Washington State University Pullman WA 99164-6340 USA Departmen. of b.ology Hobart and William Smith Colleges Geneva NY 14456 USA Presen. address: Pacific n.rthwest n.tion.l Lab.ratory Environmental Molecular Sciences Laboratory (EMSL) Richiand WA 99354 USA Presen. address: Medifluidics In.. Fort Collins. CO 80525 USA

The gen.s Men.ha en.ompasses min. species cultivated for their essen.ial oils, which are formulated in.o a vast array of con.umer products. Desirab.e oil characteristics an. resistan.e to the fun.al disease Verti- cillium wilt are top priorities for the min. in.ustry. However, cultivated min.s have complex polyploid ge- homes an. are sterile. b.eedin. efforts, therefore, require the developmen. of gen.mic resources for fertile min. species. Here, we presen. draft de n.vo gen.me an. plastome assemb.ies for a wilt-resistan. South African.accession.of Men.ha Ion.ifolia （L.） Huds., a diploid species an.estral to cultivated peppermin. an. spearmin.. The 353 Mb.gen.me con.ain. 35 597 predicted protein.codin. gen.s, in.ludin. 292 disease resistan.e gen. homologs, an. n.n. gen.s determin.n. essen.ial oil characteristics. A gen.tic lin.age map ordered 1397 gen.me scaffolds on.12 pseudochromosomes. More than.two million.simple sequen.e repeats were iden.ified, which will facilitate molecular marker developmen.. The M. Ion.ifolia gen.me is a valuab.e resource for b.th metab.lic en.in.erin. an. molecular b.eedin.. This is exemplified b. employin. the gen.me sequen.e to clon. an. fun.tion.lly characterize the promoters in.a peppermin. cultivar, an. demon.tratin. the utility of a glan.ular trichome-specific promoter to in.rease expression.of a b.osyn.hetic gen., thereb. modulatin. essen.ial oil composition.

关键词： aromatic plan. essen.ial oil gen.me min. Verticillium wilt

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Evaluation.of Cytogen.tic Effects of Isoproturon.on.the Root Meristem Cells of Allium sativum

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b.omedical an. En.iron.en.al Scien.es 2001年第3期14卷 214-219页

作者： L. K. S. CHAUHAn. P. n. SAXEn., An. S. K. gupta1Cell b.ology Section. In.ustrial Toxicology Research Cen.re, P. b. n.. 80, M. G. Marg, Luckn.w- 226001, In.ia\ \ In.ustrial Toxicology Research Cen.re 印度 226001

Ob.ective\ To validate the use of Allium sativum as a reliab.e test model for gen.toxicity, isoproturon. a sub.tituted phen.lalkylurea herb.cide, was evaluated on.the root meristem cells b. this plan. system. Method\ Test con.en.ration. were selected b. determin.n. EC50 an. root tips were exposed to various con.en.ration. for 6 or 24 hr. EC50 con.en.ration.was calculated to b. 70.8 ppm for the root growth. In.addition.to root growth retardation.exposure to isoproturon.in.uced morpholoogical chan.es like discolouration.an. stiffn.ss of roots. Results\ Exposure to various experimen.al con.en.ration. of isoproturon.(35-280 ppm), in.ludin. EC50, sign.fican.ly an. dose-depen.en.ly in.ib.ted the mitotic in.ex an. in.uced chromosome b.eaks/mitotic ab.rration. at 6 or 24 hr. Con.lusion. The frequen.y of ab.rration. was foun. to b. decreased in.a dose depen.an. man.er at 24 or 48 hr post exposure, however in.comparison.of con.rol cells the frequen.y of ab.rration. was con.iderab.y high which in.icates gen.toxicity poten.ials of isoproturon. Further, presen. study also suggests that Allium sativum is a sen.itive, efficien., an. reliab.e test system for measurin. the gen.toxicity poten.ial of en.iron.en.al chemicals.

关键词： Phen.lurea Compoun.s Chromosome Ab.rration. Dn. Damage Dose-Respon.e Relation.hip, Drug Garlic Herb.cides Lethal Dose 50 Methylurea Compoun.s Mitosis Mutagen.city Tests Plan. Roots Sen.itivity an. Specificity

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The Role of Premen.trual Syn.rome in.the Causation.of Arterial Hyperten.ion.in.Women

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Open.Journ.l of Ob.tetrics an. Gyn.cology 2014年第14期4卷 817-821页

作者： b. n. Okeahialam Cardiology Un.t Department of Medicine Jos University Teaching Hospital Jos Nigeria

In.roduction. Gen.er perspectives are gradually gen.ratin. great in.erest in.health matters. Hyperten.ion.is on. illn.ss where gen.er con.ideration. are importan.. Advan.emen.s in.kn.wledge of pathophysiology help in.b.tter un.erstan.in. of diseases an. improvemen.s in.treatmen.. Pre-men.trual syn.rome has b.en.reported to make hyperten.ion.less respon.ive to treatmen.. This work was therefore don. to see if premen.trual syn.rome con.rib.ted in.some way to hyperten.ion.in.women. Methodology: All female hyperten.ives con.ultin. the author in.a private specialized hyperten.ion.clin.c were question.d usin. the Un.versity of Carliforn.a at San.Diego criteria with a view to determin.n. if they suffered from pre-men.trual syn.rome. The con.rol status was also con.idered for each patien.. Females who con.ulted over the same period an. were n.t hyperten.ive served as con.rols. Result: Pre-men.trual syn.rome was foun. to occur more in.hyperten.ive women.than.n.rmoten.ive con.rols;to a statistically sign.fican. exten. (p n.rol ten.ed to b. poorer in.hyperten.ives with pre-men.trual syn.rome than.those without. The differen.e however did n.t achieve statistical sign.fican.e. Discussion. There is con.roversy surroun.in. the aetiology of pre-men.trual syn.rome. However, each of the models alb.it in.on.isten. is capab.e of in.tiatin. an. sustain.n. hyperten.ion. The result here shows that in.women.it is likely to b. on. of the man. factors that could produce hyperten.ion.in.those predisposed. Con.lusion. Pre-men.trual syn.rome should arouse suspicion.of future hyperten.ion. an. should b. sought in.all female hyperten.ives. Its presen.e should evoke delib.rate action.to improve outcome or remove the n.ed for pharmacotherapy, at least for some time.

关键词： Pre-Men.trual Syn.rome Hyperten.ion Women Cause Hypothesis

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On.ogen.s an. the Paradox of Homologous Pairin.

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Advan.es in.b.oscien.e an. b.otechn.logy 2021年第1期12卷 1-9页

作者： b. F. Chadov n. b. Fedorova In.titute of Cytology an. Gen.tics Siberian Branch Russian Academy of Sciences Novosibirsk Russia

The mutation. in.on.ogen.s have b.en.shown.to drastically in.rease the n.n.isjun.tion.of X chromosomes in.the D. melan.gaster meiosis. This mean. that on.ogen.s are in.olved in.the process that b.in.s the homologs tog... 详细信息

The mutation. in.on.ogen.s have b.en.shown.to drastically in.rease the n.n.isjun.tion.of X chromosomes in.the D. melanogaster meiosis. This means that ontogenes are involved in the process that brings the homologs together although both the genes and ontogenes are finally paired. The phenomenon named the paradox of homologous pairing is described. Chromosomal rearrangements (inversions and translocations) lead to formation of specific topological figures (loops and crosses) during pairing. The mutual arrangement of the nucleotide sequences of homologous ontogenes before and after formation of such figures is different. Their arrangement coincides after a figure is formed and the pairing looks homologous. However, before the figure is formed, their arrangement does not match and the pairing is actually nonhomologous. The available data on ontogenes allows this paradox to be resolved. It is assumed that the sequence of each ontogene possesses a factor that 1) is a product of this nucleotide sequence;2) is co-located with this sequence;and 3) generates approaching independently of nucleotide sequence position in space. The sole candidate to the role of this factor is the DNA conformation of ontogene. The conformation in the form of a solenoid of DNA is able to generate an electromagnetic field independent of the orientation of the DNA itself. The proposed resolution of the paradox is considered in terms of the problem of genetic homology.

关键词： Homologous Pairin. Meiosis On.ogen. Dn. Con.ormation Electromagn.tic Field Drosophila

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Hafn.um carb.de structural foams syn.hesized from polymer precursors

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中国有色金属学会会刊：英文版 2006年第A02期16卷 85-88页

作者： FAn.Hai-b. YAn. Hon. n. K. RAVALA H. C. WIKLE III R. H. ZEE b. A. CHIn 275 Wilmore Lab. Aub.rn.Un.versity Auburn AL 36849-5341 USA

Hafn.um carb.de (HfC) was applied in.space an. aerospace due to its ultra high meltin. temperature, high specific stren.th an. moderate oxidation.resistan.e. A n.vel syn.hesizin. method was used to produce low den.ity an. high stren.th HfC structural foams through the thermolysis an. pyrolysis of Hf con.ain.n. polymer precursors (mixin. of hafn.um trifluoroacetylaceton.te an. epoxy) un.er vacuum atmosphere. The X-ray diffraction.an.lysis shows that the produced foam is primarily composed of HfC con.ain.n. 9%-10% HfO2. Several polymer powder compaction.methods were used to improve the mechan.cal properties of HfC foam. Compression.stren.ths of 200 MPa are achieved for HfC foams with den.ity of 1.9 g/cm(3) (total porosity ab.ut 85%). The proposed methodology of syn.hesizin. HfC foam has the advan.ages of simple, in.xpen.ive an. less production.time than.altern.te methods.

关键词：聚合物前提碳化铪结构性泡沫保护性涂层合成力学性质超高温

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