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A CMOS wide.and front-e.d chip using dire.t RF sampling mixe. with e.be.de. discre.e.time.filte.ing

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Journal of Se.iconductors 2011年第8期32卷 111-117页

作者：许江涛 Carlos e.saavedra 陈贵灿 Institute.of Microe.e.tronics Xi'an Jiaotong University Que.n's Unive.sity

A CMOS wide.and front-e.d IC is de.onstrate. in this *** consists of a low noise.transconductance.amplifie.（LNTA） and a dire.t RF sampling mixe.（DSM） with e.be.de. programmable.discre.e.time.*** LNTA has the.fe.ture. of 0.5-6 GHz wide.and,wide.and input matching and low *** e.be.de. filte. following the.DSM ope.ate. in discre.e.time.charge.domain,filte.ing the.aliasing signals and inte.fe.e.ce. while.controlling the.IF bandwidth according to the.clock *** me.sure. NF of the.front-e.d was be.ow 7 dB throughout the.whole.band from 0.5 to 6 *** shows a conve.sion gain of 12.6 dB and IP_（1dB） of-7.5 dBm at 2.4 *** occupie. a chip are. of 0.23 mm^2 and consume. 14 mA DC curre.t.

关键词： wide.and front-e.d LNTA DSM discre.e.time FIR filte.ing IIR windowe. inte.ration

Bioactive.polysaccharide. from me.icinal mushrooms:A re.ie. on the.r isolation,structural characte.istics and antitumor activity

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Food Bioscie.ce 2022年第5期49卷 119-129页

作者： Juliana Garcia Francisca Rodrigue. Maria Jos´e.saavedra Fe.nando M.Nune. Guilhe.mina Marque. CITAB-Ce.tre.for the.Re.e.rch and Te.hnology of Agro-e.vironme.t and Biological Scie.ce. University of Tr´as-os-Montes e Alto Douro5001-801Vila RealPortugal AquaValor-Ce.tro de.Valorizaç˜ao e.Transfe.ˆe.cia de.Te.nologia da´Agua-Associaç˜ao Rua Dr.Júlio Martins n.◦15400-342ChavesPortugal Re.UIMTe.LAQV-Polyte.hnic of Porto-School of e.gine.ring Rua Dr.Ant´onio Bernardino de Almeida4314249-015PortoPortugal CQ-VR-Ce.tro de.Química-Vila Re.l Food and Wine Chemistry Lab.Chemistry DepartamentUniversity of Tr´as-os-Montes e Alto Douro5001-801Vila RealPortugal

Mushrooms e.the. alone.or in combination with conve.tional cance. tre.tme.t have.be.n e.hance. the.e.ficacy of che.othe.apy and radiothe.apy improving the.patie.ts’quality of *** the.apy e.fe.ts have.be.n attribute. to polysaccharide.;the.most pote.t compounds found in the.fungi *** to the.r wide.range.of biological activity and the.backbone.of glucose.re.idue. linke. byβ-(1→3)-glycosidic bonds,ofte. with attache. side.chain glucose.re.idue. joine. byβ-(1→6)linkage.,the.mushroom’s polysaccharide.,particularly the.-glucans,are.the.most ve.satile.***,D-fraction,and schizophyllan from Le.tinula e.ode.,Grifola frondosa,and Schizophyllum commune.re.pe.tive.y are.we.l-knownβ-glucans,howe.e.,the.pre.ise.immunomodulation and anticance. me.hanisms of action re.ain to be.*** to se.e.al studie.,β-glucan can inte.act with ce.tain re.e.tors on macrophage. and de.dritic ce.ls,such as de.tin-1 and TLRs,producing diffe.e.t cytokine. and,in turn,indire.tly activating othe. immune.ce.ls including T and B ***,re.e.t findings have.prove. thatβ-glucans have.a dire.t cytotoxic e.fe.t on cance. ce.ls suppre.sing prolife.ation and e.hancing apoptosis possibly via multiple.pathways such as PI3K/Akt/mTOR,NF-κB-,e.K-,e.α-,caspase.and p53-de.e.de.t ***,this study inte.ds to provide.information on the.le.tinan,D-fraction,and schizophyllan by e.amining the.e.traction proce.ure.,che.ical composition,and immunostimulatory and antitumoral biological *** re.e.rch dire.tions should be.dire.te. toward improving the.validity and re.iability of randomize. trials to confirm the.pote.tial role.ofβ-glucans on the.immune.syste. and as anticance. the.apy.

关键词： Le.tinan D-fraction Schizophyllan Anticance. activity

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基于电流矢量和的多模QAM直接数字调制器

电子学报 2012年第1期40卷 40-46页

作者：许江涛 Carlos e.saavedra 陈贵灿西安交通大学微电子学系陕西西安710049 加拿大女皇大学电气与计算机工程系

本文提出了一种新型直接数字正交幅度调制器(QAM),可用于4-QAM,16-QAM或更高阶调制方式.其基于电流矢量相加的原理,首次采用一对跨导可调的高速运算跨导放大器产生幅值可控的基本电流矢量,开关网络在电流域中选择矢量相加,减小了非线性... 详细信息

本文提出了一种新型直接数字正交幅度调制器(QAM),可用于4-QAM,16-QAM或更高阶调制方式.其基于电流矢量相加的原理,首次采用一对跨导可调的高速运算跨导放大器产生幅值可控的基本电流矢量,开关网络在电流域中选择矢量相加,减小了非线性失真.该芯片采用0.13μmCMOS工艺进行流片.在5.4GHz载波频率、16Mbps数据率时的测试结果显示,16-QAM调制的e.M为6.2%,芯片面积0.09mm2,在1.2V电源电压下总直流功耗为20mA.

关键词： QAM调制器多模直接数字调制运算跨导放大器跨阻放大器

Hopf Bifurcation Control in a Lore.z Type.Syste.

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Journal of Applie. Mathe.atics and Physics 2018年第8期6卷 1704-1719页

作者： P. e. Calde.on-saavedra e. Munoz-Aguirre.J. Alvare.-Me.a S. Gome.-Pe.e. Unive.sidad de. Tolima Ibagué Colombia Unive.sidad Ve.acruzana Veracruz Mexico

In this pape. Hopf bifurcation control is imple.e.te. in orde. to change.the.bifurcation from supe.critical to subcritical in a diffe.e.tial e.uations syste. of Lore.z type. To achie.e.this purpose. first, a re.ion of parame.e.s is ide.tifie. whe.e.the.syste. has a supe.critical Hopf bifurcation;se.ond, a class of non-line.r fe.dback control laws is propose.;finally, it is shown that the.e.are.control laws which the.disturbe. syste. unde.goe. subcritical Hopf bifurcation.

关键词： Lore.z Type Syste.s Bifurcation Control Hopf Bifurcation Control Subcritical and Supe.critical Hopf Bifurcation

Microchanne. re.ctive.distillation for the.conve.sion of aque.us e.hanol to e.hyle.e

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Journal of e.e.gy Che.istry 2024年第11期98卷 481-493页

作者： Johnny saavedra-Lope. Ste.he. D.Davidson Paul H.Humble.Dan R.Botte.us Vane.sa Le.arbie. Dagle.Yuan Jiang Charle. J.Fre.man Ward e.Te.Grote.huis Robe.t A.Dagle Pacific Northwe.t National Laboratory 902 Battelle Blvd.RichlandWA 99354USA

He.e.we.de.onstrate.the.proof-of-conce.t for microchanne. re.ctive.distillation for alcohol-to-je. application:combining e.hanol/wate. se.aration and e.hanol de.ydration in one.unit *** is first distille. into the.vapor phase.conve.te. to e.hyle.e.and wate.,and the. the.wate. co-product is conde.se. to shift the.re.ction *** inte.sification is achie.e. through rapid mass transfe.-e.hanol stripping from thin wicks using nove. microchanne. archite.ture.-le.ding to lowe. re.ide.ce.time.and improve. se.aration *** savings are.re.lize. with inte.ration of unit *** e.ample.he.t of conde.sing wate. can offse. vaporizing ***,the.de.ydration re.ction e.uilibrium shifts towards comple.ion by imme.iate.re.oval of the.wate. byproduct upon formation while.maintaining aque.us fe.dstock in the.conde.se. *** aque.us e.hanol fe.dstock(40%_w),71% e.hanol conve.sion with 91% se.e.tivity to e.hyle.e.was de.onstrate. at 220℃,600psig,and 0.28 h^(-1) wt hour space.ve.ocity.2.7 stage. of se.aration we.e.also de.onstrate.,unde. the.e.conditions,using a de.ice.le.gth of 8.3 *** provide. a he.ght e.uivale.t of a the.re.ical plate.He.P),a me.sure.of se.aration e.ficie.cy,of ^(3).3 *** comparison,conve.tional distillation packing provide. an He.P of ^(3)0 ***,9,1 × re.uction in He.P was de.onstrate. ove. conve.tional te.hnology,providing a me.ns for significant e.e.gy savings and an e.ample.of proce.s ***,pre.iminary proce.s e.onomic analysis indicate. that by using microchanne. re.ctive.distillation te.hnology,the.ope.ating and capital costs for the.e.hanol se.aration and de.ydration portion of an e.visione. alcoholto-je. proce.s could be.re.uce. by at le.st 35% and 55%,re.pe.tive.y,re.ative.to the.incumbe.t te.hnology,provide. future.improve.e.ts to microchanne. re.ctive.distillation de.ign and ope.ability are.made.

关键词： Catalytic distillation e.hanol de.ydration Proce.s inte.sification Microchanne. Alcohol-to-je. proce.s

A history of Prote.ozoic te.rane. in southe.n South Ame.ica:From Rodinia to Gondwana

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Ge.scie.ce.Frontie.s 2012年第2期3卷 137-145页

作者： C.Casque. C.W.Rape.a R.J.Pankhurst e.G.Baldo C.Galindo C.M.Fanning J.A.Dahlquist J.saavedra De.artame.to de.Pe.rología y Ge.quimica IGe.(Unive.sidad Complute.se CSIC) Ce.tro de.Inve.tigacione. Ge.lógicas(CONICe.-UNLP) 1900 La Plata Argentina Visiting Re.e.rch Associate.British Ge.logical Surve. KeyworthNottingham NG12 5GGUnited Kingdom CICTe.RA(CONICe.-UNC) 5000 Cordoba Argentina De.artame.to de.Pe.rologia y Ge.quimica IGe.(Unive.sidad Complute.se CSIC) Re.e.rch School of e.rth Scie.ce. The.Australian National Unive.sity Instituto de.Agrobiología y Re.ursos Naturale. CSIC 37071 Salamanca Spain

The.role.playe. by Pale.prote.ozoic cratons in southe.n South Ame.ica from the.Me.opro- te.ozoic to the.e.rly Cambrian is re.onside.e. he.e. This pe.iod involve. protracte. contine.tal amal- gamation that le. to formation of the.supe.contine.t Rodinia, followe. by Ne.prote.ozoic contine.tal bre.k-up, with the.conse.ue.t ope.ing of Clyme.e.and Iape.us oce.ns, and finally contine.tal re.asse.bly as Gondwana through comple. oblique.collisions in the.Late.Ne.prote.ozoic to e.rly Cambrian. The.e.ide.ce.for this is base. mainly on a combination of pre.ise.U-Pb SHRMP dating and radioge.ic isotope.data for igne.us and me.amorphic rocks from a large.are. e.te.ding from the.Rio de.la Plata craton in the.e.st to the.Arge.tine.Pre.ordille.a in the.we.t and as far north as Are.uipa in Pe.u. Our inte.pre.ation of the.pale.ge.graphical and ge.dynamic e.olution invoke. a hypothe.ical Pale.prote.ozoic block （MARA） e.bracing base.e.t ultimate.y olde. than 1.7 Ga in the.We.te.n Sie.ras Pampe.nas （Arge.tina）, the.Are.uipa block （Pe.u）, the.Rio Apa block （Brazil）, and probably also the.Paraguaia block （Bolivia）.

关键词： Pale.prote.ozoic Cratons Gre.villian Ne.prote.ozoic rifting SW Gondwana asse.bly

Blue.e.ry e.tract Re.uce. Oxidative.Stre.s in Patie.ts with Me.abolic Syndrome

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Journal of Life.Scie.ce. 2016年第3期10卷 145-152页

作者： Raul Francisco Pastor Gonzale. e.Cassini M. S. Pastor I Saure.M saavedra e. Siman Me.e. M. I. Drago S Ie.moli R. H Inte.nalMe.icine.VChair HospitaldeClinicas"JosddeSanMartin"UniversityofBuenosAiresBuenosAiresArgentina Ce.trode.iagn6sticoMole.ularS.A.(Mole.ularDiagnosisCe.te.) BuenosAiresArgentina Ce.AN(Ce.trode.ndocrinologia SaludAlimentaci6nyNutricidn)CenterforEndocrinologyHealthEatingandNutritionBuenosAiresArgentina

Oxidative.stre.s is a he.lth condition that could pote.tially harm the.patie.t, and it is de.ine. as the.lack of balance.be.we.n the.production of oxyge. fre. radicals, which rise., and antioxidant de.e.se., which are.in de.re.se. Me.abolic syndrome.implie. a varie.y of risk factors that are.base. on abdominal obe.ity and insulin re.istance. More.ve., the.importance.of me.abolic syndrome.is e.phasize. due.to the.fact that it pre.e.ts an incre.se.in oxidative.stre.s, which is produce. by the.sum of alte.ations that e.ch risk factor produce. within the.me.abolic syndrome.pathology. Re.ucing oxidative.stre.s in the.e.patie.ts is curre.tly one.of the.most inte.e.ting challe.ge. of cardiovascular and me.abolic the.ape.tics, be.ause.it is a mole.ular biology alte.ation that is not ge.e.ally diagnose. and, the.e.ore. not tre.te.. The.incre.sing incide.ce.of ove.we.ght and obe.ity cause.an incre.se.in the.incide.ce.of me.abolic syndrome. thus turning into a huge.proble. that ke.ps growing at alarming proportions. This syndrome.s incide.ce.oscillate. be.we.n 20 and 40%, de.e.ding on the.ge.de., age. e.hnic group, and diagnostic crite.ia use. for the.de.inition of the.dise.se. Prospe.tive.studie. show that me.abolic syndrome.double. the.risk of cardiovascular dise.se.and cause. a five.fold incre.se.in the.risk of de.e.oping type.2 diabe.e.. With the.aim of de.re.sing the.oxidative.stre.s cause. by me.abolic syndrome. we.inve.tigate. the.e.fe.t of antioxidant prote.tion in DNA re.air and ce.l me.brane. through the.use.of blue.e.ry e.tract, which is the.fruit with the.highe.t antioxidant capacity, in patie.ts with me.abolic syndrome. Thirty patie.ts we.e.studie. for a pe.iod of 6 months of inte.ve.tion, and it could be.de.onstrate. that the. showe. a highly significant de.re.se.in the.damage.produce. to the.DNA, which was me.sure. by the.urinary e.cre.ion of 8-hydroxy-2＇-de.xyguanosine.（8-OHdG） and the.damage.cause. to the.vascular e.dothe.ium and ce.l me.brane., which was me.s

关键词： Me.abolic syndrome urinary biomarke.s of oxidative.stre.s blue.e.rie. antioxidants.

e.ploring the.adjustme.t to parasite.pre.sure.hypothe.is: diffe.e.ce. in uropygial gland volume.and hae.osporidian infe.tion in pale.rctic and ne.tropical birds

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Curre.t Zoology 2021年第2期67卷 147-156页

作者： Se.gio MAGALLANe. Ande.s Pape.MøLLe. Charle.e.LUJÁN-Ve.A e.te.an FONG Danie. Ve.CO We.dy FLORe.-saavedra Luz GARCÍA-LONGORIAA Flore.tino De.LOPe.JoséA.IANNACONe.Alfonso MARZAL De.artme.t of Anatomy Cellular Biology and ZoologyUniversity of ExtremaduraAvda.de Elvas S/NBadajoz ES-06006Spain e.ologie.Systématique.e.olution UniversitéParis-SudOrsay 91400France Ke. Laboratory for Biodive.sity Scie.ce.and e.ological e.gine.ring of Ministry of e.ucation College of Life SciencesBeiing Normal UniversityBeiing 100875China Pharmacology and Toxicology Graduate.Group University of CaliforniaDavisDavisCA 95616USA e.e.Gre.n Institute.San Rafae. Distrito de IndianaLoreto 16200Perú Ce.tro Urku de.e.tudios Amazónicos Tarapoto 22202Perú Unive.sidad Nacional Agraria La Molina Lima 15024Perú Mole.ular e.ology and e.olution Lab Department of BiologyLund UniversityLund 22100Sweden Laboratorio de.Inge.ie.ia Ambie.tal Universidad Cientifica del Sur-Villa el SalvadorLima 15067Perú Laboratorio de.Inve.te.rados Universidad Ricardo PalmaSantiago de Surco 15039Perú

Parasite. are.globally wide.pre.d pathoge.ic organisms,which impose.im portant se.e.tive.force. upon the.r ***,in accordance.with the.A djustm e.t to parasite.pre.sure.hypothe.is,it is e.pe.te. that de.e.se. among hosts vary re.ative.to the.se.e.tive.pre.sure.impose. by *** to the.latitudinal gradie.t in dive.sity,spe.ie. richne.s and abundance.of parasite. pe.k ne.r the.*** uropygial gland is an im portant de.e.sive.e.ocrine.gland against pathoge.s in *** of the.uropygial gland has be.n propose. to vary among spe.ie. of birds be.ause.of dive.ge.t se.e.tion by pathoge.s on the.r ***,we.should e.pe.t that bird spe.ie. from the.tropics should have.re.ative.y large. uropygial glands for the.r body size.than spe.ie. from highe. ***,this hypothe.is has not ye. be.n ***,we.analyze.the.size.of the.uropygial gland of 1719 individual birds be.onging to 36 bird spe.ie. from 3 Ne.tropical(Pe.u)and 3 te.pe.ate.are.s(Spain).Re.ative.uropygial gland volum e.was 12.52%large. in bird spe.ie. from the.tropics than from te.pe.ate.*** finding is consiste.t w ith the.re.ative.size.of this de.e.sive.organ be.ng drive. by se.e.tive.pre.sure. impose. by *** also e.plore. the.pote.tial role.of this gland as a me.ns of avoiding hae.osporidian infe.tion,showing that spe.ie. with large.uropygial glands for the.r body size.te.d to have.lowe. me.n pre.ale.ce.of hae.osporidian infe.tion,re.ardle.s o f the.r ge.graphical *** re.ult provide. additional support for the.assum ption that se.re.ions from the.uropygial gland re.uce.the.like.ihood of be.oming infe.te. with hae.osporidians.

关键词： adjustme.t to parasite.pre.sure.hypothe.is malaria Ne.tropical re.ion pre.n oil te.pe.ate.re.ion

Conformity to Traditional Ge.de. Norms in a Fe.inize. Occupation:The.Influe.ce.on He.lth Be.aviors

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He.lth 2014年第20期6卷 2775-2789页

作者： María de. Pilar Sánche.-Lópe. Ana Isabe. saavedra Virginia Dre.ch Rosa Liminana Grupo de.Inve.tigación e.tilos Psicológicos Género y SaludUniversidad Complutense de MadridMadridSpain De.artame.to de.Pe.sonalidad Evaluación y Tratamientos Psicológicos IIUniversidad Complutense de MadridMadridSpain Hospital Unive.sitario de.Ge.afe MadridSpain De.artame.to de.Psicologia Universidade Federal FluminenseRio de JaneiroBrazil De.artame.to de.Pe.sonalidad Evaluación y Tratamiento PsicológicosUniversidad de MurciaMurciaSpain

The.obje.t of this study is to e.amine.the.re.ationships be.we.n conformity to traditional ge.de. norms and he.lth in a spe.ial group of the.Spanish population, male.fe.ale.nurse.. Nursing is a particularly good e.ample.of fe.inize. occupation. Spanish male.(n = 98) and fe.ale.(n = 98) nurse. matche. in dive.se.sociode.ographic variable. comple.e.me.sure. of ge.de. norms and he.lth be.avior variable.. Me.sure. of conformity to ge.de. norms in fe.ale.and male.nurse. are.compare. with those.of the.ge.e.al population. The.analysis of the.inte.-ge.de. re.ationships and he.lth highlights a cle.rly masculine.patte.n for me. and a cle.rly fe.inine.one.for wome.. A de.aile. analysis of the.score. in e.ch of the.scale. re.e.ls a patte.n of illne.s in male.nurse. that is still masculine.de.pite.the.r lowe. conformity, as a group, to masculine.norms, and a cle.rly fe.inine.illne.s patte.n in fe.ale.nurse.. The.conside.ation of ge.de. from a multidime.sional pe.spe.tive.(the.diffe.e.t factors that make.up Masculinity and Fe.ininity, as asse.se. in this work) has allowe. us to study the.re.ations be.we.n ge.de. norms and he.lth in more.de.ail. Limitations and implications are.discusse..

关键词： He.lth Ge.de. Nursing Spain