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Semimartingal. dynamics for a backward exchange rate process

2011年

作者： vicki l. gregory.

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Probabil.ty, Uncertainty and Quantitative Risk 2024年第3期9卷 371-388页

作者： gregory.Gagnon Department of Economics University of Toronto Mississauga3359 Mississauga RoadMississaugaOntarioL5L 1C6Canada

Via a forward SDE sol.tion(k_(t),t≥O)that captures money suppl. dynamics,a macroeconomic model.known as the monetary model.generates a backward exchange rate process(y_(t),t≥0).For any t≥0,y_(t)=k_(t)+α^(-1)μ_(t) where(μ_(t),t≥0)is a backward process andα>0 is a ***,(y_(t),t≥O)does not satisfy a conventional.*** paper proves(y_(t),t≥O)is a continuous semimartingal. when restrictions on the SDE for(k_(t),t≥O)capture anti-infl.tionary *** new resul. in economic dynamics does not require the fil.ration to be the Brownian fil.ration.

关键词： Backward process Semimartingal. Anti-infl.tionary SDE pol.cy

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Science Bul.etin 2024年第7期69卷 850-852页

作者：周晓东 gregory.Y.H.l.p 郑明华 Department of Cardiovascul.r Medicine the Heart Centerthe First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000China l.verpool.Centre for Cardiovascul.r Science at University of l.verpool Liverpool John Moores University and Liverpool Heart&Chest HospitalLiverpool L693BXUK Department of Cl.nical.Medicine Aalborg UniversityAalborg 9000Denmark MAFl. Research Center Department of Hepatologythe First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000China Institute of Hepatol.gy Wenzhou Medical UniversityWenzhou 325000China Key l.boratory of Diagnosis and Treatment for the Devel.pment of Chronic l.ver Disease in Zhejiang Province Wenzhou 325000China

Heart fail.re with preserved ejection fraction(HFpEF)has an estimated incidence rate of approximatel. 27 cases per 10,000 person-year[1].Furthermore,the preval.nce of HFpEF is on the rise and is expected to exceed that of heart fail.re with reduced ejection fraction(HFr EF)[2].In the near future,HFpEF is expected to become the predominant subtype of heart fail.re[2].

关键词： predominant fraction 射血分数保留型

晶粒长大对高纯Al.111}/{111}近奇异晶界的影响

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金属学报 2024年第1期60卷 80-94页

作者：冯小铮王卫国 gregory.S.Rohrer 陈松洪丽华林燕王宗谱周邦新福建理工大学晶界工程研究所福州350118 福建理工大学材料科学与工程学院福州350118 Department of Material. Science and Engineering Carnegie Mellon UniversityPittsburghPA 15213-3890USA 上海大学材料研究所上海200072

{111}/{111}近奇异晶界较比一般晶界更耐蚀,如何提高此类晶界比例以显著提高Al.其合金晶界腐蚀抗力是一个新课题。本工作选用99.99%(质量分数)高纯Al.研究对象,考察晶粒长大对{111}/{111}近奇异晶界的影响。样品经室温多向锻造和370... 详细信息

{111}/{111}近奇异晶界较比一般晶界更耐蚀,如何提高此类晶界比例以显著提高Al.其合金晶界腐蚀抗力是一个新课题。本工作选用99.99%(质量分数)高纯Al.研究对象,考察晶粒长大对{111}/{111}近奇异晶界的影响。样品经室温多向锻造和370℃再结晶退火后,再经500℃保温不同时间,采用基于EBSD和五参数分析的晶界界面匹配表征方法对样品进行测试和分析。结果表明,随着晶粒长大,{111}/{111}近奇异晶界的比例显著增加。当平均晶粒尺寸由38μm长大至77μm时,{111}/{111}近奇异晶界的比例由3.91%增加至6.56%。离线原位EBSD和晶界迹线分析表明,晶粒长大过程中,{111}/{111}近奇异晶界主要通过具有/θ(θ为取向差转角)取向差关系的两两晶粒吞并周边晶粒并相遇后形成;具有/θ取向差关系的相邻晶粒,其晶界通过再取向调整至{111}/{111}位置,亦可形成此类近奇异晶界。{111}/{111}近奇异晶界存在旋错结构,其原子排列有序度显著高于一般晶界,这是此类晶界比一般晶界更耐蚀的原因。

关键词：高纯Al 晶粒长大近奇异晶界晶界界面匹配

Different paths to sexual.size dimorphism in two praying mantids, Pseudomantis al.ofimbriata and Hierodul. majuscul.

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Insect Science 2014年第2期21卷 227-233页

作者： l.uise E. Al.en Katherine l. Barry gregory.I. Hol.el. Department of Biol.gical.Sciences Macquarie University North Ryde NSW 2109 Australia School.of Biol.gical.Sciences The University of Auckl.nd Auckland New Zealand

Sexual.size dimorphism （SSD） is widespread among diverse animal.taxa and has attracted the attention of evol.tionary biol.gists for over a century. SSD is l.kel. to be adaptive and the resul. of divergent sel.ction on different size optima for mal.s and femal.s, given their different rol.s in reproduction. The devel.pmental.trajectory l.ading to SSD may hel. us to understand how sel.ction acts on mal. and femal. size. Here, we describe the growth and devel.pment of two Austral.an praying mantids, Pseudomantis al.ofimbriata and Hierodul. majuscul. incl.ding the number of moul.s, time to adul.hood, size at each moul., and the degree of SSD. Whil. both species exhibit the common pattern of femal.-biased SSD, the number of moul.s required for individual. to reach adul.hood differed between mal.s and femal.s and between species. Despite their l.rger adul. size, P. al.ofimbriata femal.s require fewer moul.s and l.ss time than mal.s to reach adul.hood, but are significantl. l.rger than mal.s from the second instar onwards. In contrast, H. majuscul. mal.s reached adul.hood in fewer moul.s, and l.ss time than femal.s, however mal.s and femal.s did not differ in size until.femal.s went through their final.moul. into adul.hood. H. majuscul. al.o required more time and more moul.s to reach adul.hood than 17. al.ofimbriata. We discuss these different devel.pmental.pathways in l.ght of the existing knowl.dge of reproductive biol.gy for each species. We al.o suggest that these differences may rel.te to the different phenol.gies that occur in strongl. seasonal.temperate environments compared with those in the tropics. This study provides evidence that SSD can resul. from two different patterns of growth and devel.pment in cl.sel. rel.ted species.

关键词： devel.pmental.trajectories Mantodea sexual.size dimorphism

From common gardens to candidate genes:an el.gant case of homopl.id hybrid speciation

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Mol.cul.r Pl.nt 2021年第2期14卷 200-201页

作者： gregory.l.Owens Department of Biol.gy University of VictoriaVictoriaBCCanada

Homopl.id hybrid speciation(HHS),where genetic contributions from two species combine to produce a third species without a change in pioidy,remains an intriguing and enigmatic evol.tionary *** studies in the past decade have shown that introgression and admixture between species is common,and yet wel. documented cases of HHS remain rare(Schumer et al.,2014;Marques et al.,2019).This strikes at a key feature of HHS;it is a far higher bar to prove that hybridization was critical.for speciation than it is to show that introgression *** former requires us to know how reproductive isol.tion(RI)is achieved,identify hybrid ancestry,and definitivel. l.nk hybrid ancestry with reproductive *** this in mind,the work by Wang et al.(2020)ful.y documenting a case of HHS is particul.rl. impressive in terms of both the scope and cl.rity of the resul.s.

关键词： al. combine intro

Strategic management : text and cases / gregory.G. Dess, G.T. l.mpkin, Maril.n l. Tayl.r.

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Reduced texaphyrin:A ratiometric optical.sensor for heavy metal. in aqueous sol.tion

2004年

作者： gregory.G. Dess G.T. l.mpkin Maril.n l. Tayl.r.

System requirements for accompanying CD-Rom: PC Pentium based processor, Microsoft Windows 98/2000/XP, Microsoft Internet Expl.rer 5.5

ISBN: (数字)0072843829

ISBN: (纸本)0071214526

System requirements for accompanying CD-Rom: PC Pentium based processor, Microsoft Windows 98/2000/XP, Microsoft Internet Expl.rer 5.5

关键词： Strategic pl.nning.

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Frontiers of Chemical.Science and Engineering 2020年第1期14卷 19-27页

作者： Harrison D.Root gregory.Thiabaud Jonathan l.Sessl.r Department of Chemistry The University of Texas at AustinAustinTX 78712-1224USA

We report here a water-sol.bl. metal.cation sensor system based on the as-prepared or reduced form of an expanded porphyrin,*** metal.compl.xation,a change in the redox state of the l.gand occurs that is accompanied by a col.r change from red to *** l.ng empl.yed for synthesis in organic media,we have now found that this compl.xation-driven redox behavior may be used to achieve the naked eye detectabl. col.rimetric sensing of several.number of l.ss-common metal.ions in aqueous *** to In(Ⅲ),Hg(Ⅱ),Cd(Ⅱ),Mn(Ⅱ),Bi(Ⅲ),Co(Ⅱ),and Pb(Ⅱ)cations l.ads to a col.rimetric response within 10 *** process is sel.ctive for Hg(Ⅱ)under conditions of competitive ***,among the subset of responseproducing cations,In(Ⅲ)proved unique in giving rise to a ratiometric change in the l.gand-based fl.orescence features,incl.ding an overal. increase in *** cation sel.ctivity observed in aqueous media stands in contrast to what is seen in organic sol.ents,where a wide range of texaphyrin metal.compl.xes may be *** formation of metal.cation compl.xes under the present aqueous conditions was confirmed by reversed phase highperformance l.quid chromatography,ul.ra-viol.t-visibl. absorption and fl.orescence spectroscopies,and highresol.tion mass spectrometry.

关键词： texaphyrin fl.orescent sensor ion-sensing indium mercury

Association between Pl.cental.Mal.ria and Severe Pre-Ecl.mpsia in Two University Hospital. of Yaounde City

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Open Journal.of Obstetrics and Gynecol.gy 2024年第9期14卷 1488-1511页

作者： Ayissi gregory.Astrid Ruth Ndol. Kondo Ndoumba Afouba Al.ce Noa Ndoua Cl.ude Cyril.e Essiben Fél.x Meka Esther Bel.nga Etienne Metogo Junie Engo Engo Samuel.Désiré Bodo Edmond l.maire Tchente Nguefack Charl.tte Foumane Pascal.Mboudou Emil. Tél.sphore Department of Obstetrics and Gynecol.gy Faculty of Medicine and Biomedicals Sciences University of Yaound I Yaounde Cameroon Department of Obstetrics and Gynecol.gy Faculty of Medicine and Pharmaceuticals Sciences University of Douala Douala Cameroon Department of Morphol.gical.and Anatomo-Pathol.gical.Sciences Faculty of Medicine and Pharmaceutical Sciences University of Dschang Dschang Cameroon. Department of Morphol.gical.and Anatomo-Pathol.gical.Sciences Faculty of Medicine and Biomedicals Sciences University of Yaound I Yaounde Cameroon

Context: Pre-ecl.mpsia and pl.cental.mal.ria, are two diseases that share pathophysiol.gical.simil.rities, such as pl.cental.ischemia, endothel.al.dysfunction and production of pro-infl.mmatory cytokines. Objective: The objective of our study was to investigate the association between pl.cental.mal.ria l.sions and severe pre-ecl.mpsia. Methodol.gy: We conducted a prospective anal.tical.cross-sectional.study in two University Hospital. in the city of Yaounde (Yaounde Central.Hospital.and the Gynaecol.gical.Obstetrics and Paediatrics Hospital., and in the l.boratory of the Centre Pasteur in Yaounde over an eight-month period (1st January 2021 – 1st September 2021). Al. patients with pre-ecl.mpsia diagnosed according to the criteria of the International.Society for the Study of Hypertension (ISSHP) and free of chronic metabol.c or infectious pathol.gy were incl.ded in this study. The patients were divided into two groups: group 1 (mil. pre-ecl.mpsia) and group 2: severe pre-ecl.mpsia. Socio-demographic, cl.nical.and histopathol.gical.characteristics specific to pre-ecl.mpsia and pl.cental.mal.ria were investigated. Statistical.anal.sis was performed with SPSS 23.0 software, Chi 2 was used to compare categorical.variabl.s, Student t-test was used to compare means, and l.gistic regression was used to assess the association between pl.cental.mal.ria l.sions and PES. Resul.s: The mean age of our study popul.tion was 29.93 ± 7.36 years versus 28.28 ± 7.18 years in patients with mil. and severe pre-ecl.mpsia respectivel.. Pre-ecl.mpsia pl.cental.l.sions (accel.rated vil.ous maturation, infarction) were significantl. greater in patients with severe pre-ecl.mpsia (p Concl.sion: Pl.cental.mal.ria l.sions were significantl. associated with severe pre-ecl.mpsia and increased the risk of devel.ping severe pre-ecl.mpsia pl.cental.l.sions by a factor of 10.

关键词： Mil. Pre-Ecl.mpsia Severe Pre-Ecl.mpsia Mal.ria Pl.cental.l.sions Association

Transcranial.el.ctrical.stimul.tion in neurol.gical.disease

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Neural.Regeneration Research 2022年第10期17卷 2221-2222页

作者： gregory.l.Brown Michael.T.Brown Neurished HersheyPAUSA

Increased l.fespan is one of society’s greatest achievements,but this l.ngevity increases the preval.nce of diseases of aging,such as neurol.gical.***,neurol.gical.disorders are the l.ading cause of disabil.ty and the second l.ading cause of deaths(Feigin et al.,2019).Furthermore,these diseases affect peopl. in l.w-,medium-,and high-income countries(Feigin et al.,2019).Current technol.gy to modify neurol.gical.burden is scarce,which poses numerous chal.enges for heal.hcare,gl.bal.pol.cy,and economic stabil.ty(Feigin et al.,2019).To face these chal.enges,brain stimul.tion technol.gy,such as transcranial.el.ctrical.stimul.tion(TES),has displ.yed exciting *** et al.(2017)provide a detail.d overview of the safety and appl.cation of ***,el.ctrodes are attached to the head and a weak current(e.g.,1-2 mA)is appl.ed through the scal.,skul.,and into the brain for 10-30 minutes to activate neurons(Antal.et al.,2017).The technique is extremel. safe with no serious adverse effects reported from thousands of sessions(Antal.et al.,2017).The most common side effects are a tingl.ng/itching sensation or redness at the stimul.tion site(Antal.et al.,2017).However,these side effects can be minimized by reducing the el.ctrode-skin impedance,sl.wl. ramping up and ramping down TES,or using topical.anal.esics(Antal.et al.,2017).The devel.pment of TES may repair neural.dysfunction and stem the oncoming incidence of neurodegenerative disease.

关键词： stimul.tion sensation el.ctrical