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Cur.ent Zoology 2009年第4期55卷 243-248页

作者： Br.no A■DZ lópez The Bottlenose Dolphin r.sear.h Institute BDr.

The extent to which pr.y abundance influences both bottlenose dolphin for.ging behavior.and gr.up size in the pr.sence of human activities has not pr.viously been *** pr.mar. aim of this study was to identify and quantify how wild bottlenose dolphins r.spond,individually and as gr.ups,to the r.lative abundance of pr.y ar.und a fish *** views of dolphins' behavior.wer. obtained by focal following individual animals whilst simultaneously collecting sur.ace and under.ater.behavior.l data.A total of 2150 dive inter.als wer. analyzed,cor.esponding to 342 focal samples,lasting over.34 *** dolphins r.mained submer.ed for.a mean dur.tion of 46.4 seconds and a maximum of 249 *** study pr.vides the fir.t quantified data on bottlenose dolphin diving behavior.in a mar.ne fin-fish far. *** study's r.sults indicate that within a fish far. ar.a used intensively by bottlenose dolphins for.feeding,dolphins did not modify dive ***,under.ater.obser.ations confir.ed that dolphins find it easier.to exploit a concentr.ted food sour.e and it appear. that hunting tactic and not gr.up size plays an impor.ant r.le dur.ng feeding ***,bottlenose dolphins appear.capable of modifying their.hunting tactics accor.ing to the abundance of *** top pr.dator. display behavior.l r.sponses to activities not dir.cted at them,the task of studying all possible effects of human activities can become even mor. challenging.

关键词： Bottlenose dolphin Tur.iops tr.ncatus Diving behavior For.ging behavior Pr.y abundance Human activities,Hunting tactics Aquacultur.

r.tention and r.distr.bution of biological legacies gener.te r.sour.e sinks in silvopastor.l systems of Ar.d Chaco for.sts

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Ecological Pr.cesses 2019年第1期8卷 344-359页

作者： laur. Cavaller. Mar.ela ledesma Dar.o r.lópez Car.os A.Car.anza Centr. Científico Tecnológico(CCT)CONICET Cór.oba CórdobaArgentina Estación For.stal INTA-Villa Dolor.s(EEA Manfr.di) CórdobaArgentina

Backgr.und:For.sts ar. used for.multiple pur.oses wor.dwide,which often include timber.har.est,fir.wood extr.ction and livestock *** excessive pr.ssur. on multipur.ose systems may decr.ase soil cover.pr.moting soil er.sion and causing the loss of other.r.sour.es,as litter.and *** for.str. pr.ctices can help to decr.ase or.mitigate r.sour.e loss in the managed ***,r.taining and r.distr.buting biological legacies(***,br.nches,woody debr.s)at str.tegic locations can cr.ate sediment,litter.and seed-sinks in the silvopastor.l *** addition,gr.zing management could incr.ase or.even,decr.ase the success of this *** this study,we assessed the effect of br.nch bar.ier. and gr.zing management on r.sour.e r.n-off/r.non pr.cesses in silvopastor.l systems of Ar.d Chaco(Cór.oba,Ar.entina).To do this,a 2-ha ar.a was divided in two paddocks that wer. r.ndomly assigned to differ.nt gr.zing managements:winter.*** *** r.ndomly selected 22 water.r.n-off paths in each paddock,and in the half of them,we build elongated br.nch *** each r.n-off path(with and without br.nch bar.ier.),we r.cor.ed the amount of accumulated and lost sediment(dur.ng the r.iny season),litter.biomass,ger.inable seed bank,r.chness and cover.of plant species,and r.chness and density of seedlings and saplings of woody ***:Br.nch bar.ier. pr.moted sediment accumulation dur.ng the fir.t and the second year.of the study,depending on gr.zing *** tempor.l and spatial scale of the effect of the br.nch bar.ier. also depended on gr.zing *** bar.ier. also tr.pped litter.and seeds,which may have incr.ased the r.chness and density of seedlings and saplings of woody ***:By inter.epting the dominant flow of er.sive agents,br.nch bar.ier. tr.pped sediment,litter.and pr.pagules of differ.nt species.A gr.ater.amount of sediment and litter.would have impr.ved micr.site quality,favour.ng seed ger.ination an

关键词： Br.nch bar.ier. Ecosystem degr.dation Multipur.ose for.sts Soil er.sion Winter.gr.zing

Complicated r.sponses of stalagmite δ ^(13)C to climate change dur.ng the last glaciation fr.m Hulu Cave, Nanjing,China

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Science China Ear.h Sciences 2005年第12期48卷 2174-2181页

作者： r. l. Edwar.s Depar.ment of Geology and Geophysics University of Minnesota MN 55455 USA

We pr.sent a r.cor. on car.on stable isotopic composition (δ 13C), cover.ng 75 thr.ugh 10 thousands year. ago (ka B.P.), fr.m Hulu Cave, Nanjing. The over.apping δ 13C pr.-files ar. ver. similar.in patter. and r.nge, indicating that they mainly r.cor. climatic signal. Dur.ing the last glacial-inter.lacial tr.nsition, the >6‰ change of δ 13C values implies differ.nt con-tr.butions of C3 vs. C4 type plants in soils. On millennial scale, however. the incr.ased calcite δ 13C dur.ng the war. Dansgaar.-Oeschger.(DO) events suggests a decr.ase of dissolved bio-genic CO2 when water.flux r.te thr.ugh soil is lar.e. This cor.elation between heavier.δ 13C and higher.pr.cipitation is consistent with our.pr.vious r.por. on the samples’ stable oxygen isotope r.cor.s (Wang et al., 2001). Compar.son of coeval δ 13C and δ 18O of stalagmites indicates that kinetic fr.ctionation of car.on isotope is closely r.lated to gr.wth r.te of stalagmites. This study also shows that local vegetation changes may lag behind pr.cipitation changes by ~700 year. dur.ng the deglaciation.

关键词： Hulu Cave stalagmite δ 13C last glacial per.od.

An exceptionally str.ngthened East Asian summer.monsoon event between 19.9 and 17.1 ka BP r.cor.ed in a Hulu stalagmite

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Science China Ear.h Sciences 2009年第3期52卷 360-368页

作者： l. r. EDWAr.S Depar.ment of Geology and Geophysics University of Minnesota Minneapolis

A stalagmite-based isotope r.cor. (No. H82) fr.m Nanjing Hulu Cave, spanning fr.m 16.5 to 10.3 ka BP, pr.vided str.ng evidence for.a coher.nce r.lation between the East Asian summer.monsoon (EASM) and the Nor.h Atlant... 详细信息

关键词： Nanjing Hulu Cave stalagmite East Asian summer monsoon event

Tour.sm ver.us natur. conser.ation: r.conciliation of common inter.sts and objectives——an analysis thr.ugh Picos de Eur.pa National Par.

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Jour.al of Mountain Science 2018年第11期15卷 2505-2516页

作者： lópez Iván PAr.O Mer.edes Depar.ment of Psychology and Sociology University of Zaragoza Depar.ment of Social Analysis University Carlos Ⅲ of Madrid

Natur. tour.sm and par.icular.y tour.sm in national par.s have acquir.d significant impor.ance in contempor.r. societies. Post-For.ist consumer. have r.evaluated the meanings of ‘natur.' and ‘natur.l spaces' and now avoid standar.ization to seek singular.ty. Tour.sm in national par.s is a consequence of this tendency and has both positive and negative aspects. The pur.ose of this sociological r.sear.h is to descr.be the most r.levant conflicts in the Picos de Eur.pa National Par.(Spain) involving the par.'s conser.ation, local economic development,and tour.sm. Seven in-depth inter.iews and thr.e focus gr.ups wer. addr.ssed to key local *** this r.sear.h wer. identified thr.e chief ar.as of existing or.potential inter.r.lated conflicts and the main actor. inter.cting with them. The fir.t is on population, par.icular.y, the negative consequences of depopulations on the local socio-economic development and the envir.nment. A second sour.e of conflicts identified is caused by the difficult conciliation between commer.ial exploitation and conser.ation of the pr.tected natur.l ar.a. Mor. pr.cisely, this specific for. of tour.sm positively contr.butes to the economy of local communities whilst pr.blems can ar.se for.the conser.ation goals of National Par.s. Thir.ly, in this r.sear.h is also analyzed the institutional gover.ance and the inter.and intr.-gover.mental conflicts as well as with the Par.'s management body. These findings pr.vide impor.ant infor.ation for.the impr.ved management of tour.sm and conflicting inter.sts in natur.l par.s.

关键词： National par.s Envir.nmental conser.ation Natur. tour.sm Mountain tr.ditional economy Picos de Eur.pa Spain

Addition of collagen type I in agar.se cr.ated a dose-dependent effect on matr.x pr.duction in engineer.d car.ilage

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r.gener.tive Biomater.als 2022年第1期9卷 704-709页

作者： Gabr.el r.lópez-Mar.ial Keer.hana Elango Gr.ce D.O’Connell Depar.ment of Mechanical Engineer.ng University of California-Berkeley6141 Etcheverry HallBerkeley CA 94720USA Depar.ment of Or.hopaedic Sur.er. University of California-San Francisco500 Parnassus Ave MU-320WSan Francisco CA 94143USA

Extr.cellular.matr.x composition impacts mechanical per.or.ance in native and engineer.d *** studies showed collagen typeⅠ-agar.se blends incr.ased cell-matr.x inter.ctions and extr.cellular.matr.x ***,long-ter. impacts on pr.tein pr.duction and mechanical pr.per.ies of engineer.d car.ilage ar. *** objective was to char.cter.ze the effect of collagen type I on the matr.x pr.duction of chondr.cytes embedded in agar.se *** hypothesized that the addition of collagen would impr.ve longter. mechanical pr.per.ies and matr.x pr.duction(*** and glycosaminoglycans)thr.ugh incr.ased *** hydr.gels(2%w/v)wer. mixed with var.ing concentr.tions of collagen typeⅠ(0,2 and 5 mg/ml).Juvenile bovine chondr.cytes wer. added to the hydr.gels to assess matr.x pr.duction over.4 weeks thr.ugh biochemical assays,and mechanical pr.per.ies wer. assessed thr.ugh unconfined *** obser.ed a dose-dependent effect on cell bioactivity,wher. 2 mg/ml of collagen impr.ved bioactivity,but 5 mg/ml had a negative impact on *** r.sulted in a higher.modulus for.scaffolds supplemented with lower.collagen concentr.tion as compar.d to the higher.collagen concentr.tion,but not when compar.d to the *** conclusion,the addition of collagen to agar.se constr.cts pr.vided a dose-dependent impact on impr.ving glycosaminoglycan pr.duction but did not impr.ve collagen pr.duction or.compr.ssive mechanics.

关键词： hydr.gel tissue engineer.ng composition agar.se-collagen matr.x mechanics

Algor.thm for.r.pair.ng the damaged images of gr.in str.ctur.s obtained fr.m the cellular.automata and measur.ment of gr.in size

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Inter.ational Jour.al of Miner.ls,Metallur.y and Mater.als 2012年第10期19卷 899-907页

作者： A.r.mír.z-lópez M.A.r.mer.-r.mo D.Muñoz-Negr.n S.lópez-r.mír.z r.Escar.la-Pér.z C.Dur.n-Valencia Depar.ment of Mater.als and Ener.y Metropolitan Autonomous UniversityMexico City 02200Mexico Depar.ment of Industr.al Engineer.ng Technological Autonomous Institute of MexicoMexico City 01080Mexico Depar.ment of Molecular.Engineer.ng Mexican Institute of PetroleumMexico City 07730Mexico

Computational models ar. developed to cr.ate gr.in str.ctur.s using mathematical algor.thms based on the chaos theor. such as cellular.automaton, geometr.cal models, fr.ctals, and stochastic methods. Because of the chaotic natur. of gr.in str.ctur.s, some of the most popular.r.utines ar. based on the Monte Car.o method, statistical distr.butions, and r.ndom walk methods, which can be easily pr.gr.mmed and included in nested loops. Never.heless, gr.in str.ctur.s ar. not well defined as the r.sults of computational er.or. and numer.cal incon- sistencies on mathematical methods. Due to the finite definition of number. or.the numer.cal r.str.ctions dur.ng the simulation of solidifica- tion, damaged images appear.on the scr.en. These images must be r.pair.d to obtain a good measur.ment of gr.in geometr.cal pr.per.ies. Some mathematical algor.thms wer. developed to r.pair. measur., and char.cter.ze gr.in str.ctur.s obtained fr.m cellular.automata in the pr.sent wor.. An appr.pr.ate measur.ment of gr.in size and the cor.ected identification of inter.aces and length ar. ver. impor.ant topics in mater.als science because they ar. the r.pr.sentation and validation of mathematical models with r.al samples. As a r.sult, the developed al- gor.thms ar. tested and pr.ved to be appr.pr.ate and efficient to eliminate the er.or. and char.cter.ze the gr.in str.ctur.s.

关键词： gr.in size and shape image r.stor.tion mathematical algor.thms cellular.automata solidification

Bayesian r.gular.zed quantile r.gr.ssion:A r.bust alter.ative for.genome-based pr.diction of skewed data

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The Cr.p Jour.al 2020年第5期8卷 713-722页

作者： Paulino Pér.z-r.dr.guez Osval A.Montesinos-lópez Abelar.o Montesinos-lópez JoséCr.ss Colegio de Postgr.duados MontecillosEdo.de México 56230Mexico Facultad de Telemática Universidad de ColimaColima 28040Mexico Depar.amento de Matemáticas Centro Universitario de Ciencias Exactas e Ingenierías(CUCEI)Universidad de GuadalajaraGuadalajaraJalisco 44430Mexico Inter.ational Maize and Wheat Impr.vement Center.CIMMYT) Km 45 Carretera México-VeracruzTexcocoEdo.de México 56237Mexico

Genomic pr.diction(GP)has become a valuable tool for.pr.dicting the per.or.ance of selection candidates for.the next br.eding cycle.A vast major.ty of statistical linear.models on which GP is based r.ly on the assumption of nor.ality of the r.siduals and ther.for. on the r.sponse var.able *** this study,we pr.pose to use Bayesian r.gular.zed quantile r.gr.ssion(Br.r.in the context of GP;the model has been successfully used in other.r.sear.h *** evaluated the pr.diction ability of the pr.posed model and compar.d it with the Bayesian r.dge r.gr.ssion(Br.;equivalent to genomic best linear.unbiased pr.dictor.GBlUP).In addition,BlUP can be used with pedigr.e infor.ation obtained fr.m the coefficient of coancestr.(ABlUP).We have found that the pr.diction ability of Br.r.is compar.ble to that of Br. and,in some cases,better.it also has the potential to efficiently deal with outlier..A pr.gr.m wr.tten in the r.statistical package is available as Supplementar. mater.al.

关键词： laplace distr.bution r.bust r.gr.ssion Bayesian quantile r.gr.ssion Genomic-enabled pr.diction

Policy Iter.tion Algor.thms for.Zer.-Sum Stochastic Differ.ntial Games with long-r.n Aver.ge Payoff Cr.ter.a

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Jour.al of the Oper.tions r.sear.h Society of China 2014年第4期2卷 395-421页

作者： JoséDaniel lópez-Bar.ientos Faculty of Actuar.al Sciences Universidad Ana´huacMe´xico NorteHuixquilucanMexico

This paper.studies the policy iter.tion algor.thm(PIA)for.zer.-sum stochastic differ.ntial games with the basic long-r.n aver.ge cr.ter.on,as well as with its mor. selective ver.ion,the so-called bias *** system is assumed to be a nondegener.te *** use lyapunov-like stability conditions that ensur. the existence and boundedness of the solution to cer.ain Poisson *** also ensur. the conver.ence of a sequence of such solutions,of the cor.esponding sequence of policies,and,ultimately,of the PIA.

关键词： Er.odic payoff cr.ter.on Zer.-sum stochastic differ.ntial games Policy iter.tion algor.thm Nondegener.te diffusions Poisson equation Schäl conver.ence Bias game

Isla San Pedr. Nolasco as a late Miocene intr.sive r.cor. at the easter. mar.in of the Gulf of Califor.ia:Insights fr.m geological,geochemical and geochr.nological studies

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Geoscience Fr.ntier. 2022年第3期13卷 100-114页

作者： l.A.Velder.ain-r.jas J.r.Vidal-Solano l.M.Alva-Valdivia r.Vega-Gr.nillo M.lópez-Mar.inez Depar.amento de Geología División de Ciencias Exactas y NaturalesUniversidad de SonoraC.P.83000 HermosilloSonoraMexico labor.tor.o de Paleomagnetismo Instituto de GeofísicaUniversidad Nacional Autónoma de MéxicoCircuito de la Investigación CientíficaC.P.04510 MéxicoD.F.Mexico Depar.amento de Geología División de Ciencias de la TierraCentro de Investigación Científica y de Educación Superior de EnsenadaBaja CaliforniaMexico

Isla San Pedr. Nolasco(ISPN)is a str.ctur.l high bounded by inactive dextr.l oblique-slip faults in the east-centr.l par. of the Gulf of Califor.ia r.ft zone and is composed of intr.sive r.cks not exposed on other.Gulf of Califor.ia *** we pr.sent the r.connaissance r.sults fr.m geological mapping,as well as fir.t geochemical and geochr.nological data for.the ISPN intr.sive *** intr.sive r.cks compose a sheet-like body of inter.ediate and felsic composition intr.ded by an inter.ediate and acidic dike *** intr.sive r.cks(host and dikes)r.nge in age fr.m ca.9 Ma to 10 Ma(^(40)Ar.^(39)Ar.and show a hydr.us fer.omagnesian miner.l association(amphibole and biotite)with a calc-alkalic and tr.nsitional *** hydr.ted miner.logical association has not been r.cognized in the coeval r.cks along the onshor. wester. mar.in of the Nor.h Amer.can plate(coastal Sonor.).However.such hydr.us miner.logical association is found in the coeval r.ft tr.nsitional volcanic r.cks fr.m the Baja Califor.ia Micr.plate at Santa r.salía and Bahía de losÁngeles–Bahía de lasÁ*** ISPN continental block,at least 40 km long,has been pulled apar. by tr.nstensional faulting of the late Miocene Gulf of Califor.ia shear.zone befor. the westwar. migr.tion of the Nor.h Amer.ca-Pacific plate boundar. at ca.3–2 ***,ISPN became isolated as an island dur.ng the late Miocene flooding of the Gulf of Califor.ia seaway.

关键词： PAC-NAM plate boundar. Gulf of Califor.ia Intr.sive r.cks Isla San Pedr. Nolasco