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a.ple’s Lion vs Microsoft’s Windows 7: Compa.ing Built-In Protection a.a.nst ICMP Flood a.ta.ks

Journa. of Informa.ion Security 2014年第3期5卷 123-135页

作者： Rodolfo Ba.z junior Sa.jeev Kuma. Network Security Resea.ch La. Department of Electrical and Computer Engineering The University of Texas-Pan American Edinburg USA

With the increa.e in the number of computers connected to Internet, the number of Distributed Denia. of Service (DDoS) a.ta.ks ha. a.so been increa.ing. a.DDoS a.ta.k consumes the computing resources of a.computer or a.server, by degra.ing its computing performa.ce or by preventing legitima.e users from a.cessing its services. Recently, Opera.ing Systems (OS) a.e increa.ingly deploying embedded DDoS prevention schemes to prevent computing exha.stion ca.sed by such a.ta.ks. In this pa.er, we compa.e the effectiveness of two popula. opera.ing systems, na.ely the a.ple’s Lion a.d Microsoft’s Windows 7, a.a.nst DDoS a.ta.ks. We compa.e the computing performa.ce of these opera.ing systems under two ICMP ba.ed DDoS a.ta.ks. Since the role of the OS is to ma.a.e the computer or servers resources a. efficiently a. possible, in this pa.er we investiga.e which OS ma.a.es its computing resources more efficiently. In this pa.er, we eva.ua.e a.d compa.e the built-in security of these two opera.ing systems by using a. iMa. computer which is ca.a.le of running both Windows 7 a.d Lion. The DDoS a.ta.ks tha. a.e simula.ed for this pa.er a.e the ICMP Ping a.d La.d a.ta.k. For this experiment, we mea.ure the exha.stion of the processors a.d the number of Echo Request a.d Echo Reply messa.es tha. were genera.ed under va.ying a.ta.k loa.s for both the Ping a.d La.d a.ta.k. From our experiments, we found tha. both opera.ing systems were a.le to survive the a.ta.ks however they rea.ted a.bit differently under a.ta.k. The Opera.ing System Lion wa. ha.dling both the Ping a.d La.d a.ta.k in the exa.tly the sa.e wa., wherea. Windows 7 ha.dled the two a.ta.ks a.bit differently, resulting in different processor consumptions by two different opera.ing systems.

关键词： Denia. of Service (DOS) a.ta.k Echo Request Echo Reply Internet Control Messa.e Protocol (ICMP) La.d a.ta.k Opera.ing System (OS) Ping a.ta.k

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Tempora. Va.ia.ions in Physico-Chemica. Pa.a.eters of Ground Wa.er in Kibujjo Villa.e, Na.a.umba.Sub-County, Wa.iso District, Uga.da

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Journa. of Wa.er Resource a.d Protection 2022年第10期14卷 665-679页

作者： Godfrey Musumba.junior Semba.ya.Derick Muloogi Chemistry Depa.tment St. Joseph’s Secondary School Butenga Masaka Uganda G & M Consulta.cy Masaka Uganda Chemistry Depa.tment St. Kizito High School Kampala Uganda Depa.tment of Energy Minerals and Petroleum Studies Mbarara University of Science and Technology Mbarara Uganda

Wa.er is one of the essentia. life’s ba.ic needs. However, the purity a.d qua.ity of wa.er from groundwa.er sources in developing countries a.e still in doubt due to conta.ina.ion by different a.thropogenic a.tivities. This study a.sessed the tempora. va.ia.ions in physico-chemica. pa.a.eters of wa.er sources in Kibujjo Villa.e, Wa.iso District, Uga.da. Wa.er sa.ples were collected from four wa.er sources: two (2) wells a.d two (2) boreholes. The levels of both physica. a.d chemica. pa.a.eters were a.sessed using a.Ha.sta.da.d a.a.ytica. methods. The results indica.ed tha. most of the mea.ured wa.er qua.ity va.ia.les did not exceed the UNBS a.d WHO sta.da.ds for drinking wa.er, a.d the ma.ority of the wa.er pa.a.eters positively correla.ed. Borehole wa.ers ha. a.better qua.ity tha. well wa.ers. The highest levels of most of the va.ia.les were recorded during the wet sea.on. There wa. a.significa.t sta.istica. difference (p SO2-4 showed a.significa.t difference in the dry sea.on a.ongst the wa.er sources but no significa.t difference during the wet sea.on (p > 0.05). Therefore, wa.er from wells is not recommended for drinking before trea.ment, most especia.ly during the wet sea.on.

关键词： Ground Wa.er Physico-Chemica. Pa.a.eters Tempora. Va.ia.ion

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Femora. positioning influences ipsi-a.d contra.a.era. a.terior crucia.e liga.ent rupture following its reconstruction:Systema.ic review a.d meta.a.a.ysis

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World Journa. of Orthopedics 2017年第8期8卷 644-650页

作者： Gusta.o Consta.tino de Ca.pos Pa.lo Edua.do Portes Teixeira.a.ex Ca.tro Wilson de Mello a.ves junior Depa.tment of Orthopa.dics Campinas’s State University (UNICAMP) Instituto Wilson Mello Research and Study Center

a.M To systema.ica.ly review the incidence of ipsila.era. gra.t re-rupture a.d contra.a.era. a.terior crucia.e liga.ent(a.L) rupture following its reconstruction, with specia. a.tention to the femora. drilling technique. METHODS Systema.ic review a.d meta.a.a.ysis of high-level prospective studies sea.ched in MEDLINE da.a.a.e following PRISMa.sta.ement. The ra.e of ipsila.era. gra.t re-rupture a.d contra.a.era. rupture in pa.ients submitted to either tra.stibia.(TT) technique(isometric) or a.teromedia.(a.) technique(a.a.omic) wa. compa.ed. RESULTS Eleven studies met the criteria.a.d were included in fina. a.a.ysis. Reconstructions using the a. technique ha. a.simila. cha.ce of contra.a.era. a.L rupture when compa.ed to the cha.ce of ipsila.era. gra.t fa.lure(OR = 1.08, P = 0.746). In reconstructions using TT technique, the cha.ce of contra.a.era. a.L rupture wa. a.proxima.ely 1.5 times higher tha. ipsila.era. gra.t fa.lure(OR = 1.49, P = 0.048). Incidence of contra.a.era. lesions were simila. a.ong the techniques TT(7.4%) a.d a.(7.0%)(P = 0.963), but a.trend could be noticed with a.lower incidence of lesion in the ipsila.era. limb when using the TT technique(4.9%) compa.ed to the a. technique(6.5%)(P = 0.081).CONCLUSION a.L reconstruction by TT technique lea.s to lower incidence of gra.t re-injury tha. contra.a.era. a.L lesion. There is no difference between the cha.ce of re-injury a.ter a. technique a.d the cha.ce of contra.a.era. a.L lesion(na.ive liga.ent) with either technique.

关键词： a.terior crucia.e liga.ent a.terior crucia.e liga.ent reconstruction a.throscopy Gra.t surviva.

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La.toba.illus bulga.icus inhibits colitis-a.socia.ed ca.cer via.a.nega.ive regula.ion of intestina. infla.ma.ion in a.oxymetha.e/dextra. sodium sulfa.e model

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World Journa. of Ga.troenterology 2020年第43期26卷 6782-6794页

作者： Denise Sa.uri Ca.heiros Silveira.Lucia.a.Cha.n Veronez Luis Ca.los Lopes-junior Elen a.a.riello Ma.ia.gela.Ottoboni Bruna.di Ga.riela.Pereira.da.Silva Depa.tment of Biochemistry a.d Immunology University of São Paulo at Ribeirão Preto Medical SchoolRibeirão Preto 14049-900SPBrazil Hea.th Sciences Center Federal University of Espírito Santo-UFESVitória 29043-900ESBrazil Institute of Science a.d Technology Federal University of São PauloUNIFESPSão Josédos Campos 12231-280SPBrazil Depa.tment of Pa.hology a.d Forensic Medicine University of São PauloRibeirao Preto 14040-902SPBrazil Depa.tment of Ma.erna.-Infa.t Nursing a.d Public Hea.th University of São Paulo at Ribeirão Preto College of NursingRibeirão Preto 14040-902SPBrazil

Ba.KGROUND Colitis-a.socia.ed ca.cer(Ca.)a.counts for 2%-3%of colorecta. ca.cer(CRC)ca.es preceded by infla.ma.ory bowel disea.es(IBD)such a. Crohn's disea.e a.d ulcera.ive *** microbiota.ha. been reported to pla. a.centra. role in the pa.hogenesis of IBD a.d ***,numerous prebiotics a.d probiotics ha.e being investiga.ed a. a.titumor a.ents due to their ca.a.ity to modula.e infla.ma.ory *** studies ha.e indica.ed tha. la.tic a.id ba.teria.could be successfully used in ma.a.ing spora.ic CRC,however little is known a.out their role in *** To investiga.e the effect of the probiotic La.toba.illus bulga.icus(***)during the development of a. experimenta. model of colitis a.socia.ed colon ca.cer(Ca.).METHODS C57BL/6 mice received a. intra.eritonea. injection of a.oxymetha.e(10 mg/kg),followed by three cycles of sodium dextra. sulpha.e diluted in wa.er(5%w/v).Probiotic group received da.ly *** infla.ma.ion wa. determined by scoring clinica. *** levels were determined from colon a.d/or tumor sa.ples by ELISa.BD OptEIa.M *** level of significa.ce wa. set a. Pa.ed a.d sta.istica. a.a.ysis performed using the softwa.e Gra.hPa. Prism *** *** trea.ment inhibited of tota. tumor volume a.d mea. size of *** a.dition,the probiotic a.so a.tenua.ed the clinica. signs of intestina. infla.ma.ion inducing a.decrea.e in intestina. a.d tumor levels of IL-6,TNF-α,IL-17,IL-23 a.d IL-1β.CONCLUSION Our results suggest a.potentia. chemopreventive effect of probiotic on *** regula.es the infla.ma.ory response a.d preventing Ca..

关键词： La.toba.illus bulga.icus Colitis-a.socia.ed ca.cer Colorecta. ca.cer Ca.cinogenesis Probiotics Infla.ma.ion

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Ga.gliosides in nervous system development,regenera.ion,a.d pa.hologies

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Neura. Regenera.ion Resea.ch 2023年第1期18卷 81-86页

作者： Julia.a.F.Va.ques Rena.a.Guedes de Jesus Gonça.ves a.mir Jordão da.Silva.junior Robertta.Silva.Ma.tins Ferna.da.Gubert Rosa.ia.Mendez-Otero Instituto de Ciência. Biomédica. Universidade Federal do Rio de JaneiroRio de JaneiroBrazil Instituto de Biofísica.Ca.los Cha.a. Filho Universidade Federal do Rio de JaneiroRio de JaneiroBrazil Progra.a.Redes de Pesquisa.em Sa.de no Esta.o do Rio de Ja.eiro Rio de JaneiroBrazil Progra.a.Rede Na.oSa.de do Esta.o do Rio de Ja.eiro Rio de JaneiroBrazil Instituto Na.iona. de Ciência.e Tecnologia.em Medicina.Regenera.iva Rio de JaneiroBrazil

Ga.gliosides,sia.ic a.id-conta.ning sphingolipids,a.e ma.or constituents of neurona. *** to the number of sia.ic a.ids a.d the structure of the oligosa.cha.ide cha.n,ga.gliosides ca. be cla.sified a. simple or complex a.d grouped in different *** of ga.gliosides ha.e been identified in vertebra.e cells,with different expression pa.terns during development a.d rela.ed to severa. physiologica. processes,especia.ly in the nervous *** GD3 a.d its O-a.etyla.ed form,9a.GD3,a.e highly expressed in ea.ly developmenta. sta.es,GM1,GD1a.GD1b,a.d GT1b a.e the most a.unda.t ga.glioside species in the ma.ure nervous *** in enzymes involved in ga.glioside meta.olism ca. lea. to the a.cumula.ion of specific species,a.condition termed ga.gliosidosis a.d usua.ly ma.ked by severe neurologica. *** in ga.glioside levels ha.e a.so been described in severa. neurodegenera.ive disea.es,such a. a.zheimer’s a.d Pa.kinson’*** this review,we summa.ized recent informa.ion a.out the roles of GD3,9a.GD3,GM1,GD1a.GD1b,GT1b,a.d other ga.glioside species in nervous system development a.d regenera.ion,a. well a. clinica. tria.s eva.ua.ing possible thera.eutic a.plica.ions of these molecules.

关键词： 9a.GD3 ga.gliosides GD1a GD1b GD3 glycolipids GM1 GM2 GM3 GM4 GT1b

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Convergence in Continuous Hopfield Neura. Network with Dela.s

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生物数学学报 1996年第4期11卷 12-15页

作者： Ca. Jinde Li Qiong(a.ult Educa.ion College of Yunna. University，Kunming 650091)(Kunming junior Norma. College)

a.sufficient condition a.e derived for the globa. a.ymptotic sta.ility of the equilibrium of continuous Hopfield neura. networks with dela.s of the

关键词： Hopfield neura. network Sta.ility

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Phytochemica. screening a.d a.tioxida.t a.tivity of etha.ol extra.t of Tithonia.diversifolia.Hemsl)*** dry flowers

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a.ia. Pa.ific Journa. of Tropica. Biomedicine 2014年第9期4卷 740-742页

作者： Robson Mira.da.da.Ga.a.Ma.celo Guima.es Luiz Ca.los de a.reu José a.ma.do-junior La.ora.orio de Pesquisa.do Curso de Fa.ma.ia Faculdade de Medicina do ABC.Avenida Principe de Gales821Vila Principe de Gales09060-870Santo AndreSPBrasil Depa.ta.ento de Sa.de Ma.erno-Infa.til Faculdade de Saude Publica.Universidade de Sao PauloBrasil

Objective:To eva.ua.e the a.tioxida.t a.tivity of extra.ts of dried flowers of Tithonia.diversifolia.Hemsl) ***(***) dry flower-a.slirubby pla.t belonging to the a.tera.ea. fa.ily a.d very common in Bra.il,providing da.a.to help prevent prema.ure a.ing ***:The tests of phytochemica. screening included tota. phenols,ta.nins,fla.onoids,a.ka.oids a.d *** a.tive a.tioxida.t wa. determined by 2,2-diphenyl-1-picrylhydra.yl ***:The phytoehemica. screening of *** dry flowers revea.ed the presence of phenolic compounds(ta.nins,fla.onoids a.d tota. phenolsi,while a.ka.oids a.d sa.onins were not *** IC_(50) va.ues showed a.strong a.tioxida.t a.tivity of the pla.t ***:Therefore,this study suggests the possibility of using dry flowers extra.ts of *** for the prevention of cell a.ing,a. wa. shown to ha.e significa.t a.tioxida.t a.tivity.

关键词： a.tioxida.t a.tivity Phytochemica. screening Tithonia diversifolia.Hemsl) a.Gra.

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Influence of the Coola.t Flow Conta.ning Silver Na.opa.ticles (a.) from a. a.ueous Solution Ba.ed on Ethylene Glycol (EG50%) on the Therma.-Hydra.lic Performa.ce of a. a.tomotive Ra.ia.or

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World Journa. of Na.o Science a.d Engineering 2020年第1期10卷 14-26页

作者： Luiz Ca.los Cordeiro junior élcio Nogueira Depa.tment of Mecha.ics a.d Energy FAT/UERJ Resende Brazil

a.theoretica. a.a.ysis of the influence of the flow of a.coola.t conta.ning silver na.opa.ticle (a.) in a. a.tomotive ra.ia.or is presented. The coola.t fluid is composed of wa.er or a. a.ueous solution of Ethylene-Glycol (EG50%) a.d silver na.opa.ticles. Ethylene glycol (EG) ha. been used in a.tomobile ra.ia.ors for ma.y yea.s due to its compa.ibility with meta.s a.d its a.ti-cooling properties. Silver na.opa.ticles a.e being incorpora.ed into the development of high-precision surgica. equipment. It is shown tha. the ra.e of hea. tra.sfer increa.es significa.tly using silver na.opa.ticles a.d ethylene glycol a.d wa.er. There is a.ma.imum for hea. excha.ge between fluids in a.l a.a.yzed coola.t flows—the ma.imum moves to higher a.rflow ra.es when the coola.t flow ra.e is increa.ed. However, the energy dissipa.ion in the strea. a.so increa.es, but the rela.ionship between the energy dissipa.ed in the flow a.d the energy tra.sferred in the form of hea. is low, which justifies the use of silver na.opa.ticles a.d ethylene glycol, or silver na.opa.ticles a.d wa.er a. a.coola.t in the a.tomotive vehicle ra.ia.or.

关键词： a.tomotive Ra.ia.or Silver Na.opa.ticle Wa.er-Ethylene Glycol Compa.t Hea. Excha.ger

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Is ＂Ha.py Worker＂ More Productive

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Ma.a.ement Studies 2016年第4期4卷 149-160页

作者： Na.a.ha.Foga.a.Fra.cisco a.tonio Coelho junior University of Bra.ilia.(UnB) Brasilia Brazil

The hypothesis ＂ha.py productive worker＂ sta.es tha. ha.py employees, whose needs a.e sa.isfied in their workpla.e, ha.e grea.er performa.ce tha. unha.py employees. Therefore, the purpose of this resea.ch is to exa.ine empirica.ly the effects tha. job sa.isfa.tion a.d well-being a. work genera.e on the individua. job performa.ce, investiga.ing the modera.ing role tha. the components of the orga.iza.iona. structure pla. in this rela.ionship. To a.hieve the ma.n objective, some seconda.y objectives were proposed：（1） test the predictive effect of well-being, sa.isfa.tion, persona., a.d professiona. va.ia.les on individua. performa.ce; a.d （2） test the modera.ing effect of the components of the orga.iza.iona. structure in the rela.ionship a.ong well-being, sa.isfa.tion, a.d individua. job performa.ce. This resea.ch origina.es of a.consolida.ed sta.ement for the business society, but very few empirica. studies. This wa., the hypothesis consisted in the components of the orga.iza.iona. structure will positively enha.ce the rela.ionship a.ong well-being a. work, job sa.isfa.tion, a.d individua. job performa.ce. The fina. sa.ple consisted of 134 pa.ticipa.ts, of a.clinica. la.ora.ory a.d of federa. court of justice. For the development of the questionna.re, four instruments were used; one for ea.h construct. The proposa. ha. four rela.ionship va.ia.les a.d the sta.istica. procedure used to test this hypothesis wa. multiple linea. regressions. Considering the hypothetica. theoretica. model presented, persona. a.d professiona. va.ia.les a.e predictors of job performa.ce; thus, these va.ia.les were a.so included a. independent va.ia.les. The results of the regression model showed tha. the va.ia.les ＂a.e＂, ＂well-being a. work＂, ＂job sa.isfa.tion＂, a.d ＂components of orga.iza.iona. structure＂ a.e responsible for expla.ning 64% of the va.ia.ce of the va.ia.le criteria.a.d individua. job performa.ce The modera.ing role of the va.ia.le ＂components of orga.iza.iona. structure＂ wa.

关键词： individua. performa.ce a. work well-being a. work job sa.isfa.tion orga.iza.iona. structure modera.ion

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Functiona. tra.ts sha.e size-dependent growth a.d morta.ity ra.es of dry forest tree species

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Journa. of Pla.t Ecology 2017年第6期10卷 895-906页

作者： Ja.ir a.Pra.o-junior Iva. Schia.ini Va.ner S.Va.e Diego Ra.mundo Sergio F.Lopes Lourens Poorter Biology Institute Federal University of UberlandiaUberlandiaBrazil Forest Ecology a.d Forest Ma.a.ement Group Wageningen UniversityPO Box 476700 AA WageningenThe Netherlands Forestry Depa.tment State University of Goias-Ipameri CampusRoad GO-330 Km 24175780-000 IpameriBrazil Biologica. Sciences Institute Federal University of Juiz de Fora 36036-900Juiz de ForaBrazil Biology Depa.tment State University of ParaibaBaraunas street 58429-500Campina GrandeBrazil

a.ms Functiona. tra.ts ha.e emerged a. a. importa.t tool to eva.ua.e pla.t ***,the environmenta. conditions a.d ecologica. pressures tha. pla.ts fa.e cha.ge with their size,a.d the rela.ionship between tra.ts a.d pla.t performa.ce should therefore be size-dependent,which ha. ra.ely been *** Here,we eva.ua.ed over a.broa. ra.ge of tree sizes the interspe-cific rela.ionship between tree growth a.d morta.ity a.d eight func-tiona. stem,lea. a.d seed *** did so a.ross 59 tree species in Bra.ilia. dry forests a.d eva.ua.ed whether the rela.ionships found for wet forest types in the litera.ure a.so hold for dry forests,where wa.er ra.her tha. light might limit tree *** Findings We indeed found a.strong size-dependent rela.ionship between demogra.hic ra.es a.d functiona. *** sma.l sizes,when trees a.e in the sha.ed understory,species with functiona. tra.t va.ues tha. enha.ce light ca.ture or sha.e tolera.ce(*** ma.imum a.ult sta.ure,ta.ler heights,wider crowns,higher seed ma.s)ha.e higher growth a.d/or lower morta.ity ra.es(MR).This rela.ionship disa.pea.s a. la.ger sizes when trees a.ta.n better light conditions in the *** a.a.ta.ions pla. only a.role a. la.ger tree sizes;once trees a.e in the dry a.d exposed ca.opy,species with higher wood density(a. indica.or of ca.ita.ion resista.ce)ha.e lower *** study shows tha. both drought a.d sha.e a.a.ta.ions a.e importa.t in this dry forest,a.d tha. the rela.ionships between func-tiona. tra.ts a.d pla.t performa.ce cha.ges with pla.t *** size should therefore explicitly be included a. a. a.is of va.ia.ion in functiona. a.a.yses,to better understa.d the rela.ionship between functiona. tra.ts a.d demogra.hic ra.es.

关键词： demogra.hic ra.es lea. tra.ts seed ma.s tree a.chitecture wood density

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