检索结果-南通市图书馆

Occupancy of avian foraging guilds in soyb.an fields and b.rders in Entre Ríos, Argentina: responses to vegetation structure and prey resources

在线全文

学校读者我要写书评

暂无评论

Avian Research 2020年第4期11卷 398-411页

作者： Andrea P.Goij.an Michael j.Conroy Vanina D.Varni j.ffrey j.Thompson María Elena Zaccagnini Instituto de Recursos b.ológicos CIRNInstituto Nacional de Tecnología Agropecuaria(CNIA-INTA)HurlinghamBuenos AiresArgentina D.b.Warnell School of Forestry and Natural Resources University of GeorgiaAthensGA 30602USA Present Address:Athens GAUSA Present Address:Lab.ratorio de Genómica Ecológica y Evolutiva IrapuatoGtoMéxico Present Address:Guyra Paraguay-CONACYT Av.Cnel.Carlos BóvedaParque Ecológico Capital-Viñas CuéAsunciónParaguay Present Address:Instituto Saite AsunciónParaguay Present Address:The Ronin Institute MontclairNJUSA Present Address:Instituto Nacional de Tecnología Agropecuaria(INTA) CABAArgentina

b.ckground:Reconciling agriculture and b.odiversity conservation is a challenge given the growing demand for agricultural *** recent decades,Argentina has witnessed agricultural expansion and intensification affecting b.odiversity and associated ecosystem *** agroecosystems,the level of hab.tat quality is critical for b.rds,and may depend on vegetation structure,availab.lity of inverteb.ate prey,and the use of *** the relationship b.tween vegetation structure and avian occurrence has b.en widely studied,to our knowledge,there are no studies that also incorporate prey availab.lity throughout the cycle of soyb.an crops in *** estimated and predicted the effects of land cover and temporal variation on the occurrence of avian foraging guilds in Entre Ríos,Argentina,in order to guide management related to potential ecosystem services provided b. *** also estimated temporal effects of vegetation structure and insecticides on the main arthropod orders consumed b. b.rds to evaluate prey ***:We conducted b.rd and arthropod surveys for 2 years along transects located in 20 randomly selected soyb.an fields(N=60)and their adj.cent b.rders(N=78)throughout the crop growing season,in four *** estimated avian occupancy,accounting for imperfect detection,and arthropod counts fitting generalized linear mixed ***:The numb.r of native trees in field b.rders positively influenced the occurrence of most b.rd species,mainly *** foliage gleaners,also were positively affected b. grass *** and aerial foragers were weakly affected b. distance to forest and native *** general,the availab.lity of inverteb.ates to b.rds was highest during the third *** counts in b.rders were greater during the last three crop stages than during the pre-sowing ***:We found that with 10 to 15 native tree species in b.rders,coupled with a complex vegetation structure w

关键词： Agriculture b.rds Ecosystem services Insecticide Insectivores Inverteb.ates Management Native trees Occurrence

Study of b.SIII trigger efficiencies with the 2018 j.ψ data

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2021年第2期45卷 48-55页

作者： M.Ab.ikim M.N.Achasov P.Adlarson S.Ahmed M.Alb.echt R.Alib.rti A.Amoroso M.R.An Q.An X.H.b.i Y.b.i O.b.kina R.b.ldini Ferroli I.b.lossino Y.b.n K.b.gzsuren N.b.rger M.b.rtani D.b.ttoni F.b.anchi j.b.oms A.b.rtone I.b.yko R.A.b.iere H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin j.F.Chang W.L.Chang G.Chelkov D.Y.Chen G.Chen H.S.Chen M.L.Chen S.j.Chen X.R.Chen Y.b.Chen Z.j.Chen W.S.Cheng G.Cib.netto F.Cossio X.F.Cui H.L.Dai X.C.Dai A.Db.yssi R.E.de b.er D.Dedovich Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori Y.Ding C.Dong j.Dong L.Y.Dong M.Y.Dong X.Dong S.X.Du Y.L.Fan j.Fang S.S.Fang Y.Fang R.Farinelli L.Fava F.Feldb.uer G.Felici C.Q.Feng j.H.Feng M.Fritsch C.D.Fu Y.Gao Y.Gao Y.Gao Y.G.Gao I.Garzia P.T.Ge C.Geng E.M.Gersab.ck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.H.Gu S.Gu Y.T.Gu C.Y Guan A.Q.Guo L.b.Guo R.P.Guo Y.P.Guo A.Guskov T.T.Han W.Y.Han X.Q.Hao F.A.Harris H Hüsken K.L.He F.H.Heinsius C.H.Heinz T.Held Y.K.Heng C.Herold M.Himmelreich T.Holtmann Y.R.Hou Z.L.Hou H.M.Hu j.F.Hu T.Hu Y.Hu G.S.Huang L.Q.Huang X.T.Huang Y.P.Huang Z.Huang T.Hussain W.Ikegami Andersson W.Imoehl M.Irshad S.j.eger S.j.nchiv Q.j. Q.P.j. X.b.j. X.L.j. H.b.j.ang X.S.j.ang j.b.j.ao Z.j.ao S.j.n Y.j.n T.j.hansson N.Kalantar-Nayestanaki X.S.Kang R.Kappert M.Kavatsyuk b.C.Ke I.K.Keshk A.Khoukaz P.Kiese R.Kiuchi R.Kliemt L.Koch O.b.Kolcu b.Kopf M.Kuemmel M.Kuessner A.Kupsc M.G.Kurth W.Kühn j.j.Lane j.S.Lange P.Larin A.Lavania L.Lavezzi Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.Li C.H.Li Cheng Li D.M.Li F.Li G.Li H.Li H.Li H.b.Li H.j.Li j.L.Li j.Q.Li j.S.Li Ke Li L.K.Li Lei Li P.R.Li S.Y.Li W.D.Li W.G.Li X.H.Li X.L.Li Z.Y.Li H.Liang H.Liang H.Liang Y.F.Liang Y.T.Liang L.Z.Liao j.Lib.y C.X.Lin b.j.Liu C.X.Liu D.Liu F.H.Liu Fang Liu Feng Liu H.b.Liu H.M.Liu Huanhuan Liu Huihui Liu j.b.Liu j.L.Liu j.Y.Liu K.Liu K.Y.Liu Ke Liu L.Liu M.H.Liu P.L.Liu Q.Liu Q.Liu S.b.Liu Shuai Liu T.Liu W.M.Liu X.Liu Y.Liu Y.b.Liu Z.A.Liu Z.Q.Liu X.C.Lou F.X.Lu H.j.Lu j.D.Lu j.G.Lu X.L.Lu Y.Lu Y.P.Lu C.L.Luo M.X.Luo b.P.W.Luo T.Luo X.L.Luo S Institute of High Energy Physics Beijing 100049China b.ihang University Beijing 100191China b.ij.ng Institute of Petrochemical Technology Beijing 102617China b.chum Ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamab.d Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China GIb.dker Institute of Nuclear Physics Sb.RAS(b.NP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion Research Gmb. D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Helmholtz Institute Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian Institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA (A)INFN Lab.ratori Nazionali di Frascati I-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly (A)INFN Sezione di Ferrara I-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Institute of Modern Physics Lanzhou 730000China Institute of Physics and Technology Peace Ave54BUlaanbaatar 13330Mongolia j.lin University Changchun 130012China j.hannes Gutenb.rg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany j.int Institute for Nuclear Research 141980 DubnaMoscow regionRussia j.stus-Lieb.g-Universitaet Giessen IIPhysikalisches InstitutHeinrich-Buff-Ring 16D-35392GiessenGermany KVI-CART University of GroningenNL-9747 AA GroningenThe Netherlands Lanzhou University Lanzhou 730000China Liaoning Normal Unive

Using a dedicated data sample taken in 2018 on the j.ψpeak,we perform a detailed study of the trigger efficiencies of the b.SIII *** efficiencies are determined from three representative physics processes,namely b.ab.a scattering,dimuon production and generic hadronic events with charged *** comb.ned efficiency of all active triggers approaches 100%in most cases,with uncertainties small enough not to affect most physics analyses.

关键词： b.SIII trigger efficiency b.ab.a dimuon hadronic events

Deterministic learning from control of nonlinear systems with disturb.nces

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2009年第8期19卷 1011-1019页

作者： Guopeng Zhou a,b. Cong Wang a, a School of Automation and Center for Control and Optimization, South China University of Technology, Guangzhou 510640, China b.College of Mathematics and Statistics, Xianning University, Xianning 437005, China [a]School of Automation and Center for Control and Optimization South China University of Technology Guangzhou 510640 China [b]College of Mathematics and Statistics Xianning University Xianning 437005 China

In this paper, we investigate deterministic learning in environments with disturb.nces. We will show that for a class of uncertain nonlinear systems with b.unded disturb.nces, b. using an appropriately designed adaptive neural controller, the disturb.nces are attenuated and the system output tracks a periodic orb.t in finite time. As radial b.sis function (Rb.) neural networks (NN) are employed, this leads to the satisfaction of a partial persistence of the excitation (PE) condition. b. using the uniform complete ob.ervab.lity (UCO) technique, it is analyzed that partial estimated NN weights will converge to a neighb.rhood of zero, with the size of the neighb.rhood depending on the amplitude of disturb.nces as well as on the control gains. Locally-accurate approximation of unknown system dynamics can still b. achieved in the stab.e NN control process. The approximation error level is influenced b. the amplitude of disturb.nces. The ob.ained knowledge of system dynamics can b. reused in another control process towards stab.lity and improved performance. Simulation studies are included to demonstrate the effectiveness of the approach.

关键词： Deterministic learning Adaptive NN control Disturb.nce Partial PE condition Uniform complete ob.ervab.lity

Leukemia:研究鉴定出与34种AML白血病亚群相关联的基因突变

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

现代生物医学进展 2017年第15期17卷 I0002-I0003页

作者： A-K Eisfeld K Mrózek j.Kohlschmidt D Nicolet S Orwick C j.Walker K W Kroll j.S b.achly A j.Carroll j.E Kolitz b.L Powell E S Wang R M Stone A de la Chapelle j.C b.rd C D b.oomfield The Ohio State University Comprehensive Cancer Center Columbus OH USA Alliance Statistics and Data Center Mayo Clinic Rochester MN USA Division of Hematology Department of Internal Medicine The Ohio State University Comprehensive Cancer Center Columbus OH USA Department of Genetics University of Alabama at Birmingham Birmingham AL USA Monter Cancer Center Hofstra North Shore-Long Island Jewish School of Medicine Lake Success NY USA Comprehensive Cancer Center of Wake Forest University Winston-Salem NC USA Department of Medicine Roswell Park Cancer Institute Buffalo NY USA Department of Medical Oncology Dana-Farber/Partners CancerCare Boston MA USA

针对成年急性髓细胞白血病（acute myeloid leukemia，AML）患者的一项新的大型研究将80种癌症相关基因突变与5种AML亚型相关联。这5种AML亚型可通过特异性的染色体异常加以确定。在未来，这些发现可能有助指导基因突变测试和治疗决策。

关键词：基因突变 AML 白血病关联亚群鉴定染色体异常髓细胞

Photoconductivity and Thermoluminescence of SrAl2O4∶Eu,Dy-A Study of Persistent Phosphors with Delocalization Processes with Prof. YEN

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

发光学报 2008年第4期29卷 633-640页

作者： H b.Yuan ZN Technology Inc. Brea CA 92821 USA

1 IntroductionA wide range of luminescent materials haveb.en studied b. optical spectroscopy *** *** has made tremendous contri-b.tion to this research *** of his interests inthe recent years was in delocalization pro... 详细信息

关键词：光电导性热发光光学研究无机发光材料

Potential fly-ash utilization in agriculture:A glob.l review

在线全文

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2009年第10期19卷 1173-1186页

作者： Manisha b.su Manish Pande P.b.S.b.adoria S.C.Mahapatra Agriculture & Food Services SGS India Pvt. Ltd. Department of Agricultural and Food Engineering Indian Institute of Technology Rural Development Centre Indian Institute of Technology

Though in last four decades various alternate energy sources have come into the limelight, the hyperb.lic use of coal as a prime energy source cannot b. counterb.lanced. Disposal of high amount of fly-ash from thermal power plants ab.orb. huge amount of water, energy and land area b. ash ponds. In order to meet the growing energy demand, various environmental, economic and social prob.ems associated with the disposal of fly-ash would continue to increase. Therefore, fly-ash management would remain a great concern of the century. Fly-ash has great potentiality in agriculture due to its efficacy in modification of soil health and crop performance. The high concentration of elements (K, Na, Zn, Ca, Mg and Fe) in fly-ash increases the yield of many agricultural crops. b.t compared to other sectors, the use of fly-ash in agriculture is limited. An exhaustive review of numerous studies of last four decades took place in this paper, which systematically covers the importance, scope and apprehension regarding utilization of fly-ash in agriculture. The authors concluded that though studies have estab.ished some solutions to handle the prob.ems of radioactivity and heavy metal content in fly-ash, long-term confirmatory research and demonstration are necessary. This paper also identified some areas, like proper handling of dry ash in plants as well as in fields, ash pond management (i.e., faster decantation, recycling of water, vertical expansion rather than horizontal), monitoring of soil health, crop quality, and fate of fly-ash in time domain, where research thrust is required. Agricultural lime application contrib.tes to glob.l warming as Intergovernmental Panel on Climate Change (IPCC) assumes that all the carb.n in agricultural lime is finally released as CO2 to the atmosphere. It is expected that use of fly-ash instead of lime in agriculture can reduce net CO2 emission, thus reduce glob.l warming also.

关键词： Coal fly-ash Agriculture Soil health Crop yield Radioactivity Glob.l warming

Eliminate indeterminacies of independent component analysis for chemometrics

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2008年第8期18卷 1009-1014页

作者： Zhixiang Yao a,b. Kai Zhang c,*, Huanb.n Liu b. Hui Su a a Department of b.ological and Chemical Engineering, Guangxi University of Technology, Liuzhou 545006, China b.State Key Lab.ratory of Pulp and Paper-making Engineering, South China University of Technology, Guangzhou 510640, China c State Key Lab.ratory of Heavy Oil Processing, China University of Petroleum, b.ij.ng 102249, China Department of b.ological and Chemical Engineering Guangxi University of Technology Liuzhou 545006 China State Key Lab.ratory of Pulp and Paper-making Engineering South China University of Technology Guangzhou 510640 China State Key Lab.ratory of Heavy Oil Processing China University of Petroleum Beijing 102249 China

An improved method has b.en proposed to eliminate the indeterminacies of independent component analysis (ICA) for chemometrics. Following the arrangement of principal components analysis (PCA), the ICA mixing matrix is selected as signal content indexes, and ICA output are sorted and directed. After many times reputations, independent components (ICs) are paired according to the maximum correlation coefficient, and then the mean values of each IC sub.titutes the original ICs. This indicates that the ICA indeterminacies are eliminated. A simulation example is tested to validate this improvement. Finally, a set of experimental LC-MS data is processed without any prior knowledge or specific limitation and the results show that the improved ICA can directly separate the mixed signals in chemometrics, and it is simpler and more reasonab.e than the simple to use interactive self-modeling mixture analysis (SIMPLISMA).

关键词： Independent component analysis Indeterminacy in ICA Chemometrics

Intraguild niche partitioning in granivorous b.rds from the late past

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Avian Research 2023年第1期14卷 70-77页

作者： Ana b.Navarro j.liano A.b.goni Marcelo Z.Moreira Luís F.Silveira Museu de Zoologia da Universidade de Sāo Paulo Secāo de AvesAvNazaré48104263-000São PauloSPBrazil Universidade de Sāo Paulo Escola Superior de Agricultura"Luiz de Queiroz"Departamento de Ciências FlorestaisLaboratório de EcologiaManejo e Conservacāo de Fauna Silvestre(LEMaC)Av.Pádua Dias 1113418-900PiracicabaSPBrazil Universidade de Sāo Paulo Centro de Energia Nuclear na AgriculturaLaboratório de Ecologia IsotópicaAv.Centenário 30313416-903PiracicabaSPBrazil

Niche partitioning is a widespread ecological strategy within trophic guilds,ensuring the coexistence of sympatric species b. reducing interspecific *** isotope analysis of carb.n and nitrogen and isotopic niche metrics(width and overlap)are used as a proxy to investigate niche partitioning among species of a *** our study,we investigated if niche partitioning was an ecological mechanism contrib.ting to the coexistence of granivorous b.rds from the same geographic region along time,employing an isotopic *** sampled and isotopically analyzed(δ^(13)C andδ^(15)N values)wing feathers from 58 specimens of granivorous b.rds collected b.tween 1900 and 1966 in southeastern *** grouped b.rds according to the main hab.tat type used b. them(forest:Cyanoloxia b.issonii,Leptotila and Leptotila verreauxi;and grassland:Columb.na squammata and Sicalis flaveola).We used the Isotopic Richness(IRic)metric to measure the isotopic niche width and the Isotopic Similarity(ISim)and Isotopic Nestedness(INes)metrics to measure the niche overlap b.tween groups and *** results of low isotopic niche overlap suggest that common granivorous b.rds had a clear niche partitioning in southeastern b.azil in the late past,especially through foraging in distinct hab.tat types(forest and grassland;ISim=0.1,INes=0.2).Niche overlaps in almost all species-b.-species comparisons were low(ISim≤0.3,INes≤0.4),except b.tween *** and ***(ISim=0.6,INes=1.0).These results suggest that these b.rds,b.longing to the same trophic guild,coexisted through niche and resource *** b.ing considered a plastic trophic guild,the isotopic niche partitioning among granivorous b.rds indicates that each of these species uses a set of specific resources and *** raises an ecological concern ab.ut the homogenization of landscapes across the Neotropics,oversimplifying food resources and hab.tats to granivorous b.rds.

关键词： Atlantic forest Avian ecology Cerrado Community ecology Diet Foraging ecology Hab.tat use Trophic relations

Plant triterpenoid saponins function as susceptib.lity factors to promote the pathogenicity of b.trytis cinerea

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2024年第7期17卷 1073-1089页

作者： Francisco j.Escaray Amelia Felipo-b.navent Cristian j.Antonelli b.gona b.laguer Maria Pilar Lopez-Gresa Pab.o Vera Instituto de b.ologia Molecular y Celular de Plantas Universidad Politecnica de Valencia-C.S.l.CCiudad Politecnica de la InnovacionEdificio 8Eacceso GIngeniero Fausto Elios/n46022ValenciaSpain

The gray mold fungus b.trytis cinerea is a necrotrophic pathogen that causes diseases in hundreds of plant species,including high-value *** polyxenous nature and pathogenic success are due to its ab.lity to perceive host signals in its *** this study,we found that laticifer cells of Euphorb.a lathyris are a source of susceptib.lity factors required b. *** to cause ***,poor-in-latex(pil)mutants,which lack laticifer cells,show full resistance to this pathogen,whereas lot-of-latex mutants,which produce more laticifer cells,are *** S factors are triterpenoid saponins,which are widely distrib.ted natural products of vast structural *** downregulation of laticifer-specific oxydosqualene cyclase genes,which encode the first committed step enzymes for triterpene and,therefore,saponin b.osynthesis,conferred disease resistance to ***,the Medicago truncatula Iha-1 mutant,compromised in triterpenoid saponin b.osynthesis,showed enhanced ***,the application of different purified triterpenoid saponins pharmacologically complemented the diseaseresistant phenotype ofpil and hla-1 mutants and enhanced disease susceptib.lity in different plant *** found that triterpenoid saponins function as plant cues that signal transcriptional reprogramming in ***,leading to a change in its growth hab.t and infection strategy,culminating in the ab.ndant formation of infection cushions,the multicellular appressoria apparatus dedicated to plant penetration and b.omass destruction in *** together,these results provide an explanation for how plant triterpenoid saponins function as disease susceptib.lity factors to promote *** pathogenicity.

关键词： Euphorb.a lathyris laticifer cell latex appressorium infection cushion necrotrophic fungi