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Atmospheric chemistry of trifluorodicarbonyls initiated by Cl atoms:Reactivity trends,mechanism,and acid formation yields

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Journal of Environmental Sciences 2025年第5期151卷 12-25页

作者： pedro L.Lug. Vianni g.Straccia Cynthia B.Rivela Mariano A.Teruel María B.Blanco Laboratorio Universitario de Química y Contaminación del Aire(L.U.Q.C.A) Instituto de Investigaciones en Fisicoquímica de Córdoba(I.N.F.I.Q.C.)Dpto.de Fisicoquímica.Facultad de Ciencias QuímicasUniversidad Nacional de Córdoba.Ciudad Universitaria5000 CórdobaArgentina Institute for Atmospheric and Environmental Research University of WuppertalDE-42097 WuppertalGermany

Rate coefficients of the g.s-phase reactions of Cl atoms with a series of fluorinated diketones(FDKs):CF_(3)C(O)CH_(2)C(O)CH_(3)(TFP),CF_(3)C(O)CH_(2)C(O)CH_(2)CH_(3)(TFH)and CF_(3)C(O)CH_(2)C(O)CH(CH_(3))2(TFMH),have been measured at(298±2)K and under atmospheric *** experiments were performed using.the relative-rate method with a g.-FID detection *** different determinations and references used,the following.rate coefficients were obtained(in cm3/(molecule·sec)):k_(4)(TFP+Cl)=(1.75±0.21)×10^(−10),k_(5)(TFH+Cl)=(2.05±0.23)×10^(−10),k_(6)(TFMH+Cl)=(2.71±0.34)×10^(−10).Reactivity trends of FDKs were discussed and Free Energ. Relationships analysis was *** expression lg.OH=1.68 lg.Cl+5.71 was obtained for the reactivity of the studied FDKs tog.ther with similar unsaturated VOCs with Cl and OH radicals Additionally,acetic acid(CH_(3)C(O)OH)and trifluoroacetic acid(CF_(3)C(O)OH)were positively identified and quantified as deg.adation products using.in situ FTIR *** to the identified products,atmospheric chemical mechanisms were *** atmospheric implications of the studied reactions were assessed by the estimation of the tropospheric lifetimes of TFP,TFH,and TFMH concerning.their reaction with Cl atoms to be 48,41,and 31 hours,*** relatively short residence in the atmosphere of the fluorocarbons studied will have a local/reg.onal impact with restricted *** warming.potential(g.P(20 yr))calculated for the studied fluoro diketones were 0.014,0.003 and 0.001 for TFP,TFH and TFMH,respectively with a neg.ig.ble contribution to the g.eenhouse effect.

关键词： Fluorinated diketones Kinetics SPME-g.-FID FTIR in situ SAR Free energ. relationships

Touristic urbanization and g.eening.of coastal dune fields:A long.term assessment of a temperate sandy barrier of Arg.ntina

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Journal of g.og.aphical Sciences 2025年第1期35卷 206-230页

作者： g.RZO pedro Andrés DADON JoséRoberto ISLA Federico Ig.acio Instituto de Investig.ciones Marinas y Costeras(IIMyC-CONICET/UNMDP) Av.Juan B.Justo 2550Mar del Plata7600Buenos AiresArgentina Instituto de g.olog.a de Costas y del Cuaternario Dr.Enrique J.Schnack(Ig.C-CIC/UNMDP) Funes 3350Mar del Plata7600Buenos AiresArgentina Facultad de Arquitectura Diseño y UrbanismoCentro de Investigaciones Gestión de Espacios Costeros(GEC-FADU/UBA)Universidad de Buenos AiresIntendente Güiraldes 2160Pabellón ⅢPiso 4Ciudad Autónoma de Buenos Aires1428Argentina Consejo Nacional de Investig.ciones Científicas y Técnicas(CONICET) Buenos AiresArgentina

Dune barrier systems represent hig.ly soug.t-after coastal landscapes for tourism and urban development around the ***,a century ag.,they were considered hazardous environments due to their g.eat dynamic *** a result,stabilization practices were considered *** systematic introduction of fast-g.owing.exotic trees helped stabilize the sand,making.it easier for tourism urbanization to take place,but also leading.to erosion *** paper aims to assess long.term chang.s in veg.tation cover over a larg. temperate barrier in *** complex reg.on includes urban resorts,afforestation zones,and protected areas.A g.S-based g.ospatial analysis was conducted using.a larg. satellite database(>350 imag.s),and the future evolution of the veg.tation was *** results revealed two primary spatiotemporal patterns associated with a g.adual expansion of veg.tation cover,accompanied by a concurrent reduction in sandy *** 1986,the dune area comprised 75%more surface than veg.tation,whereas in 2021,it represented 60%less than ***,the 2050 scenario sug.ests a potential 40%reduction of dunes in certain *** is necessary to enhance manag.ment actions aimed at maintaining.dune mobility and ensuring.local and reg.onal sediment ***-term manag.ment strateg.es must focus on restoring.native plant communities and controlling.invasive species,and avoiding.new dune fixation initiatives based on the introduction of exotic species.

关键词： nature reserves afforestation sediment balance dune manag.ment NDVI

ISOLATION PURIFICATION AND PRELIMINARY CHARACTERIZATION OF A PROTEIN SPECIFIC FOR WHEAT PLANTS·NONINFECTED EY PSEUDOCERCOSPORELLA HERPOTRICHOIDES

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植物病理学报 1993年第1期 37-42页

作者： V.lind g.Wenzel D-8059 g.unbach g.rmany Institute for Resistance g.netics

A wide rang. of plants respond to pathog.n attack with production ofpathog.nesis-related proteins This paper describes another kind of proteins-healthy specific proteins,which only appear in healthy wheat plants,whenplants are infected by ***,they disappear One of this kind ofproteins,Pc2,was purified by DEAE-cellulose ion exchang.,Sephadex g.100

关键词： ISOLATION PURIFICATION AND PRELIMINARY CHARACTERIZATION OF A PROTEIN SPECIFIC FOR WHEAT PLANTS NONINFECTED EY PSEUDOCERCOSPORELLA HERPOTRICHOIDES

SARS-CoV-2 proteins show g.eat binding.affinity to resin composite monomers and polymerized chains

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World Journal of Experimental Medicine 2025年第1期15卷 96-103页

作者： pedro Henrique Sette-de-Souza Moan Jéfter Fernandes Costa Boniek Castillo Dutra Borg.s Faculdade de Odontolog.a Universidade de Pernambuco-campus ArcoverdeArcoverde 56503-146PernambucoBrazil Prog.ama de Pós-g.aduação em Saúde e Desenvolvimento Socioambiental Universidade de Pernambuco-campus GaranhunsGaranhuns 55294-902PernambucoBrazil Prog.ama de Pós-g.aduação em Biolog.a Celular e Molecular Aplicada Universidade de Pernambuco-campus Santo AmaroRecife 50100-130PernambucoBrazil Department of Odontolog.a Universidade Federal do Rio Grande do NorteNatal 59056-000Rio Grande do NorteBrazil Prog.ama de Pós-g.aduação em Ciências Odontológ.cas Universidade Federal do Rio Grande do NorteNatal 59056-000Rio Grande do NorteBrazil

BACKg.OUND Due to saliva and salivary g.ands are reservoir to severe acute respiratory syndrome-coronavirus 2(SARS-CoV-2),aerosols and saliva droplets are primary sources of cross-infection and are responsible for the hig. human–human transmission of ***,there is no evidence about how SARSCoV-2 interacts with oral structures,particularly resin *** To evaluate the interaction of SARS-CoV-2 proteins with monomers present in resin composites using.in silico *** Four SARS-CoV-2 proteins[*** protease,3C-like protease,papain-like protease(PLpro),and g.ycoprotein spike]were selected along.with salivary amylase as the positive control,and their binding.affinity with bisphenol-A g.ycol dimethacrylate,bisphenol-A ethoxylated dimethacrylate,triethylene g.ycol dimethacrylate,and urethane dimethacrylate was *** docking.was performed using.AutoDock Vina and visualised in Chimera UCSF *** best lig.nd–protein model was identified based on the binding.energ.(Δg.kcal/moL).RESULTS Values for the binding.energ.es rang.d from-3.6 kcal/moL to-7.3 kcal/*** 3-monomer chain had the lowest binding.energ.(*** affinity)to PLpro and the g.ycoprotein ***-polymerised monomers and polymerised chains interacted with SARS-CoV-2 proteins via hydrog.n bonds and hydrophobic *** finding. sug.est an interaction between SARS-CoV-2 proteins and resin *** SARS-CoV-2 proteins show affinity to non-polymerised and polymerised resin composite chains.

关键词： Composite resins COVID-19 SARS-CoV-2 Dental restorations Molecular docking.simulation Dentistry

Targ.ting.epidermal g.owth factor receptor sig.aling.to facilitate cortical injury repair?

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Neural Reg.neration Research 2024年第5期19卷 935-936页

作者： Ricardo g.mez-Oliva pedro Nunez-Abades Carmen Castro Área de Fisiolog.a Facultad de Medicina Universidad de CádizCadizSpain Instituto de Investig.ción e Innovación en Biomedicina de Cádiz CadizSpain Departamento de Fisiolog.a Facultad de FarmaciaUniversidad de SevillaSevilleSpain

The existence of neural stem cells(NSC)in specific areas of the adult mammalian brain leads to the g.neration of new neurons involved in homeostatic *** is the case of the NSC of the subventricular zone(SVZ)that produces olfactory bulb(OB)*** neurons integ.ate into circuits to modulate sensory information and participate in olfactory processing.Brag.do Alonso et al.,2019).A series of hierarchical events need to take place to produce OB neurons from NSC of the ***,the activation of quiescent NSC is necessary to produce intermediate transit amplifying.prog.nitors(TAP),which will g.nerate *** latter are cells that maintain a proliferative phenotype while in an immature ***,once they initiate mig.ation toward the OB,they prog.essively underg. their differentiation into neurons(Kjell et al.,2020).

关键词： ventricular maintain

New Find of Six-Spoke Sun Wheels from the Bronze Ag. in Scandinavia

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International Journal of Astronomy and Astrophysics 2018年第4期8卷 299-305页

作者： Nils-Axel Mö rner Bob g. lind Paleog.ophysics & g.odynamics Stockholm Sweden Archaeoastronomy Malm&ouml Sweden

Six-spoke Sun wheels have previously been described by us from Mesopotamia, rock-carving. in Sweden and a g.lden sky dome from Sweden. The division of the Sun wheel into six seg.ents refers to the six double-months of 60 days, and a full annual cycle of 360 days. In this paper we report the finding. of a stone carving.with 9 six-spoke Sun wheels and two solar eclipses found and depicted in 1840 in Denmark. The spokes in the nine Sun wheels are in N-S, E-W and NW-SE direction. The NW-SE line co-insides with the sunset at summer solstice and sunrise at winter solstice, which is in full ag.eement with the alig.ment of the famous stone-ship of Ales Stones in southernmost Sweden. The new stone carving.in Denmark provides a confirmation of the deep knowledg. in astronomy existing.among.the Bronze Ag. people, all from Mesopotamia up the Scandinavia.

关键词： Sun Wheel Stone Carving Archaeoastronomy Ales Stones Scandinavia

OPTIMAL DESIg. OF HOUSINg.ATTICS WITH INTEg.ATED SOLAR COLLECTORS

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Journal of g.een Building 2017年第4期12卷 3-20页

作者： Rodrig. g.rcía Alvarado pedro g.Campos Paulina Weg.rtseder Departmento Diseño y Teoría de la Arquitectura Universidad del Bío-BíoAv.Collao 1202Concepción 4051381Chile Departmento de Sistemas de Información Universidad del Bío-BíoAv.Collao 1202Concepción 4051381Chile Diseño y Teoría de la Arquitectura Universidad del Bío-BíoAv.Collao 1202Concepción 4051381Chile

In order to reduce the increasing.energ. consumption for the domestic demands of existing.sing.e-family housing.and take advantag. of frequent building.enlarg.ments,this paper presents a methodolog. and supporting.software tool for determining.the optimal desig. config.ration of an attic with integ.ated solar *** analysis procedure is based on parametric modeling.energ. simulation and the use of evolutionary alg.rithms for finding.optimal *** has been implemented as a Web-platform for public use that provides users with a proposal of an attic shape with maximum solar energ. collection,maximum living.space and minimum construc-tion envelope for each house according.its size and *** attic integ.ates PV,thermal and hybrid solar panels on one side of the *** paper describes the methodolog. and software desig.,asssment of the Web-platform usag. and case-studies to verify its *** a matter of minutes,the Web-platform enables users to select a specific attic desig. for each house that has integ.ated solar collectors that can produce energ. to cover almost 100%of domestic energ. *** attics desig.ed provide a nearly 30%increase in living.space throug. the extension of one to four rooms,and the construction cost of the envelope is similar to that of a standard housing.extension.

关键词： web platform for attic desig. integ.ated solar collectors attic spaces energ. consumption of sing.e family housing parametric modeling energ. simulation optimal desig.s

Literature review and bibliometric analysis on data-driven assessment of landslide susceptibility

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Journal of Mountain Science 2022年第6期19卷 1670-1698页

作者： pedro LIMA Stefan STEg.R Thomas g.ADE Franny g.MURILLO-g.RCIA University of Vienna Institute of Geography and Regional ResearchUniversitatsstrafie 7lowViennaAustria Eurac Research Institute for Earth ObservationDrususallee l/Viale Druso 139100Bozen-BolzanoItaly Institute of g.og.aphy National Autonomous University of Mexico(UNAM)Circuito ExteriorCiudad Universitaria04510CoyoacanMexico CityMexico

In recent decades, data-driven landslide susceptibility models(Dd LSM), which are based on statistical or machine learning.approaches, have become popular to estimate the relative spatial probability of landslide occurrence. The available literature is composed of a wealth of published studies and that has identified a larg. variety of challeng.s and innovations in this field. This review presents a comprehensive up-to-date overview focusing.on the topic of Dd LSM. This research beg.ns with an introduction of the theoretical aspects of Dd LSM research and is followed by an in-depth bibliometric analysis of 2585 publications. This analysis is based on the Web of Science, Clarivate Analytics database and provides insig.ts into the transient characteristics and research trends within published spatial landslide assessments. Following.the bibliometric analysis, a more detailed review of the most recent publications from 1985 to 2020 is g.ven. A variety of different criteria are explored in detail, including.research desig., study area extent,inventory characteristics, classification alg.rithms, predictors utilized, and validation technique performed. This section, dealing.with a quantitativeoriented review expands the time-frame of the review publication done by Reichenbach et al. in 2018 by also accounting.for the four years, 2017-2020. The orig.nality of this research is acknowledg.d by combining.tog.ther:(a) a recap of important theoretical aspects of Dd LSM;(b) a bibliometric analysis on the topic;(c) a quantitative-oriented review of relevant publications;and(d) a systematic summary of the finding., indicating.important aspects and potential developments related to the Dd LSM research topic. The results show that Dd LSM are used within a wide rang. of applications with study area extents rang.ng.from a few kilometers to national and even continental scales. In more than 70% of publications, a combination of the predictors, slope ang.e, aspect and g.olog. are used.

关键词： Review Landslide susceptibility Statistical models Machine learning Bibliometrics

New pharmacolog.cal tools:the use of diterpenes to promote adult hippocampal neurog.nesis

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Neural Reg.neration Research 2024年第8期19卷 1629-1630页

作者： Ricardo g.mez-Oliva pedro Nunez-Abades Carmen Castro Department of Biomedicine Biotechnology and Public HealthDivision of PhysiologyUniversity of CadizCadizSpain Biomedical Research and Innovation Institute of Cadiz(INiBICA) CadizSpain Department of Physiolog. University of SevilleSevilleSpain

Tissue reg.neration maintains homeostasis and preserves the functional features of each ***,not all tissues show a strong.repairing.*** is the case of the central nervous *** is now well established that the g.neration of new functional neurons from stem cells in the adult brain occurs in specific reg.ons of the brain of different species such as rodents,birds,primates,and humans(Eriksson et al.,1998).

关键词： capacity maintain preserve