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Solar-assisted photocatalytic water splitting using defective UiO-66 solids from modulated synthesis

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nano Research 2024年第5期17卷 4134-4150页

作者： celia M.Rueda-navarro maría Cabrero-Antonino Paula Escamilla Valentín Díez-Cabanes Dong Fan Pedro Atienzar Belén Ferrer Ignacio Vayá Guillaume Maurin Herme G.Baldoví Sergio navalón Departamento de Química Universitat Politècnica de ValènciaCamino de Vera s/nValencia 46022Spain Instituto de Ciencia Molecular(ICMOL) Universitat de ValènciaPaterna 46980Spain ICGM Univ.MontpellierCNRSENSCMMontpellier34095France Instituto de Tecnología Química(UPV-CSIC) Universitat Politècnica de ValènciaAvenida de los Naranjos s/nValencia 46022Spain

Metal-organic frameworks(MOFs)are attracting increasing interests as photocatalysts for solar-driven hydrogen production from *** paper reports on a comparative study of using either acetic acid(AA)or trifluoroacetic acid(TFA)as the representative UiO-66 organic modulators for synthesizing visible light responsive UiO-66(Zr)-X(X:nH_(2) or nO_(2))photocatalysts for water *** results show that photocatalytic hydrogen generation from a water/methanol mixture can be improved by varying the nature and amount of the modulator employed to prepare the different UiO-66(Zr)-X(X:nH_(2) or nO_(2))solid ***-66(Zr)-nH_(2) was the most active photocatalyst,followed by UiO-66(Zr)-nO_(2),both prepared with 12 equivalents of AA with respect to the organic *** UiO-66(Zr)-nH_(2) solid was more active than the parent MOF in photocatalytic overall water splitting(OWS)(H_(2) and O_(2) production of 450 and 160μmol·g^(-1),respectively,in 5 h;apparent quantum yield(AQY)at 400 nm of 0.06%)in the absence of methanol and compares favourably with analogous *** on the photocatalytic activity of the most active solids of both series was obtained by means of a series of techniques,including ultraviolet-visible(UV-vis)diffuse reflectance,X-ray photoelectron spectroscopy(XPS),laser flash photolysis(LFP),electron spin resonance(ESR),photoluminescence and photoelectrochemical measurements together with density functional theory(DFT)*** results showed that organic acid modulators can be used to enhance the photocatalytic activity of missing linker UiO-66 defective materials in solar-powered water splitting.

关键词： heterogeneous photocatalysis metal-organic frameworks(MOFs) UiO-66 materials carboxylic acid modulators water splitting solar light

Convective drying of yellow discarded onion (Angaco InTA): Modelling of moisture loss kinetics and effect on phenolic compounds

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Information Processing in Agriculture 2020年第2期7卷 333-341页

作者： marıa celia Roman maria Paula Fabani Lorena Celina Luna Gabriela Egly Feresin German Mazza Rosa Rodriguez Instituto de Ingeniera Quımica-Grupo Vinculado al PROBIEn(COnICET-UnCo) Facultad de IngenierıaUniversidad Nacional de San JuanArgentina Instituto de Biotecnologıa Facultad de IngenierıaUniversidad Nacional de San JuanArgentina Instituto de Investigacio´n y Desarrollo en Ingenierıa de Procesos Biotecnologı´a y Energı´as AlternativasCONICET-Universidad Nacional del ComahueNeuquenArgentina

The Angaco InTA onion variety is the most cultivated and its production,mostly is destined for *** to their high-quality standards of these markets,many onions are *** drying process seems to be a promising solution that not only give added value to this product,but also extend shelf *** this work,the influence of convective drying process,at 60 and 70C,on the kinetic behavior,antioxidant activity,phenolic and flavonoid contents of discarded onion slices were *** that,the Angaco InTA onion is a variety genetically developed to have shorter cultivation times in this region;the phenolic compounds content in this onion variety,the drying kinetics and its influence on this content have never been *** this study,the phenolic compounds contributions to dehydrated product quality was evaluated,observing that the convective drying increased the total soluble phenolic and flavonoid contents and antioxidant properties for both temperatures,being highest at 70*** rehydration ratios were similar to the slices dried at 60 and 70*** models were used for describing the obtained drying curve equation of onion slices,being the Midilli’s model the one that presented the best ***’s model of water diffusion fitted all experimental data with acceptable correlation *** the achieved findings,70C is the optimum temperature to produce the dehydrated Angaco InTA onion.

关键词： Drying Antioxidant activity Phenolic content Kinetic model

Using fused filament fabrication to improve the tribocorrosion behaviour of 17-4 PH SS in comparison to other metal forming techniques

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Friction 2024年第10期12卷 2325-2343页

作者： Cristina GARCÍA-CABEZÓn Juan Alfonso nARAnJO celia GARCÍA-HERnÁnDEZ Cristina BERGES Gemma HERRAnZ Fernando marTÍn-PEDROSA Materials Engineering E.I.I.Universidad de ValladolidValladolid 47011Spain InEI-Escuela Técnica Superior de Ingeniería Industrial(ETSII) Universidad de Castilla La ManchaCastilla-La Mancha 13071Spain

Fused filament fabrication(FFF)is one of the additive manufacturing processes which has gained more interest because of its simplicity and *** technology is similar to the conventional metal injection moulding(MIM)process,consisting of the feedstock preparation of metal powder and polymer binders,followed by layer-by-layer 3D printing(FFF)or injection(MIM)to create green parts and,finally,debinding and ***,both technologies provide near-dense *** work presents an in-depth study of the processing method’s *** porosity,microstructure,hardness,corrosion,and tribocorrosion behaviour are compared for 17-4 PH SS samples processed from powder by additive manufacturing using FFF and MIM,as well as conventional powder metallurgy(PM)*** samples exhibited the highest macro and microhardness,while corrosion behaviour was similar for both MIM and FFF samples,but superior in comparison to conventional PM ***,the FFF-as fabricated samples displayed a significant improvement in tribocorrosion resistance that could be explained by the higher proportion of delta ferrite and retained austenite in their microstructure.

关键词： 17-4 PH SS fused filament fabrication(FFF) metal injection moulding(MIM) corrosion behaviour powder metallurgy(PM) tribocorrosion behaviour

Comparison of climatic threshold of geographical distribution between dominant plants and surface pollen in China

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Science China Earth Sciences 2008年第8期51卷 1107-1120页

作者： CHEDDADI Rachid BEAUDOUIn celia Institut des Sciences de l'Evolution Universite Montpellier II Montpellier 34095France Department of Earth Sciences Sun Yat-sen UniversityGuangzhou 510275China

The geographical distribution of dominant plant species in China was georeferenced and climatic variables were interpolated into all ***,the percentage distributions of principal pollen taxa based on 1860 surface pollen sites in China were selected and the related climate values were interpolated with the same method. The geographical and climatic comparison between the two data-sets indicated that the climate threshold of most pollen taxa from surface pollen is coherent with plant distributions. The climatic envelopes of dominant plant are mostly accordant with those of pollen taxa at certain levels. However, some distinct offsets of the climate ranges exist between the two datasets for most pollen taxa identified at family level, such as Ericaceae,Asteraceae, Poaceae and Chenopodiaceae. The present study provides for the first time rich information on temperature and precipitation in relation to pollen and plant distribution based on the datasets on a continental scale useful for global ecological modeling and Quaternary palaeoclimate reconstruction.

关键词： surface pollen dominant plant species geographical distribution climate global changes

When the sum adds up:Using public procurement to avoid intersectoral cooperation barriers in lagging regions

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International Journal of Innovation Studies 2023年第4期7卷 291-300页

作者： celia Díaz-Catalán Josep Lobera Department of Sociology:Methods and Theory of the Universidad Complutense de Madrid Spain Department of Sociology Universidad Autonoma de MadridSpain

This study examined the application of an instrument that supports intersectoral collaboration in *** the strategic action field(SAF)approach,we analyze a precommercial public procurement instrument developed in Andalusia(Spain).Drawing on qualitative and quantitative data,we shed light on the dynamics of collaboration between public and private innovation *** show how a change in dynamics can generate a reduction in barriers to intersectoral *** presents an opportunity to promote the transfer of knowledge and strengthen a strategic field of action,such as the agroindustry,which is the main source of income for several people in Andalusia,a European region that is developmentally lagging.

关键词： Pre-commercial public procurement Innovation Regional innovation system Valley of death

Highly graphitized carbon nanosheets with embedded ni nanocrystals as anode for Li-ion batteries

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nano Research 2020年第1期13卷 86-94页

作者： Francisco Javier Soler-Piña celia Hernández-Rentero Alvaro Caballero Julián Morales Enrique Rodríguez-Castellón Jesús Canales-Vázquez Dpto.Química Inorgánica e Ingeniería Química Instituto de Química Fina y NanoquímicaUniversidad de Córdoba14071CórdobaSpain Dpto.Química Inorgánica Cristalografía y MineralogíaFacultad de CienciasUniversidad de Málaga29071MálagaSpain Instituto de Energías Renovables Universidad de Castilla-La ManchaPaseo de La Investigación 102071AlbaceteSpain

A C/ni composite was prepared via thermal decomposition of a nickel oleate complex at 700℃,yielding disperse ni nanocrystals with an average size of 20 nm,encapsulated by carbon nanosheets as deduced from transmission electron microscopy(TEM)images and confirmed from X-ray photoelectron spectroscopy(XPS).Furthermore,the X-ray diffraction pattern revealed a good ordering of the carbon layers,forced by the ni encapsulation to adopt a bending *** the close interaction between the graphitized framework and the metallic nanoparticles we have studied the properties of the composite as an anode for Li-ion *** with other nanostructured synthetic carbons,this carbon composite has a low voltage hysteresis and a modest irreversible capacity value,properties that play a significant role in its behaviour as electrodes in full cell *** moderate rate values,0.25 C,the electrode delivers an average capacity value around 723 mAh·g^−1 on cycling,among the highest values so far reported for this carbon *** higher rate values,1 C,the average capacity values delivered by the cell on cycling decrease,around 205 mAh·g^−1,but it maintains good capacity retention,a coulombic efficiency close to 100%after the first cycles and recovery of the capacity values when the rate is restored from 3 to 0.1 C.

关键词： carbon nanosheets nickel nanoparticles anode lithium batteries

Interleukin 6 and interferon gamma haplotypes are related to cytokine serum levels in dogs in an endemic Leishmania infantum region

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Infectious Diseases of Poverty 2023年第1期12卷 62-70页

作者： LuisÁlvarez Pablo-Jesús marín-García Pilar Rentero-Garrido celia Pilar martinez-Jimenez Lola Llobat Department of Animal Production and Health Public Health and Food Science and TechnologyVeterinary Medicine FacultyFacultad de VeterinariaUniversidad Cardenal Herrera-CEUCEU UniversitiesValenciaSpain Precision Medicine Unit INCLIVA Biomedical Research InstituteValenciaSpain Helmholtz Pioneer Campus(HPC) Helmholtz Zentrum MünchenNeuherbergGermany

Background The Ibizan Hound is a canine breed native to the Mediterranean region,where leishmaniasis is an endemic *** studies indicate a low prevalence of this disease in Ibizan Hound dogs,whereas other canine breeds present a high ***,the underlying molecular mechanisms still remain *** aim of this work is to analyse the relationship between serum levels of cytokines and the genomic profiles in two canine breeds,Ibizan Hound(resistant canine breed model)and Boxer(susceptible canine breed model).Methods In this study,we analyse the haplotypes of genes encoding cytokines related to immune response of Leishmania infantum infection in twenty-four Boxers and twenty-eight Ibizan Hounds apparently healthy using CanineHD DnA Analysis BeadChip including 165,480 mapped *** *** extension of *** was used to perform a General Linear Model(GLM)regression to estimate the magnitude of individual haplotype effects within each *** Mean levels of interferon gamma(IFn-γ),interleukin 2(IL-2)and IL-18 in Boxer dogs were 0.19±0.05 ng/ml,46.70±4.54 ng/ml,and 36.37±30.59 pg/ml,whereas Ibizan Hound dogs present 0.49±0.05 ng/ml,64.55±4.54 ng/ml,and 492.10±31.18 pg/ml,*** GLM regression shows fifteen haplotypes with statistically significant effect on the cytokine serum levels(Pnt are IL6-CGAAG and IFnG-GCA haplotypes,which increase and decrease the IL-2,IL-8 and IFn-γserum levels,*** Haplotypes in the IFnG and IL6 genes have been correlated to serum levels of IFn-γ,IL-2 and IL-18,and a moderate effect has been found on IL8 haplotype correlated to IL-8 and IL-18 serum *** results indicate that the resistance to *** infection could be a consequence of certain haplotypes with a high frequency in the Ibizan Hound dog breed,while susceptibility to the disease would be related to other specific haplotypes,with high frequency in *** studies are nee

关键词： Cytokine Haplotype Dog Immune response Regulatory mechanism Resistance Susceptibility

How 'Sustainable' are Post-disaster Measures? Lessons to Be Learned a Decade After the 2004 Tsunami in the Indian Ocean

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International Journal of Disaster Risk Science 2017年第1期8卷 33-45页

作者： Christiane Stephan celia norf Alexander Fekete Institute of Rescue Engineering and Civil Protection TH Koln University of Applied Sciences50679 CologneGermany Department of Geography Rheinische Friedrich Wilhelms Universitat Bonn53113 BonnGermany Department of Environmental Sociology and Technology Assessment University of Stuttgart70174 StuttgartGermany

This article addresses the sustainability implications of post-disaster measures in the context of the 2004 Indian Ocean Tsunami by presenting an analysis of the current situations and changes in some of the affected regions. Sustainability implications of measures are captured by investigating the persistence of the social and economic living conditions in relation to post-disaster measures, and the alignment of the measures with basic environmental aspects. Based on major concepts relevant in disaster science and sustainability research, the study explored sustainability aspects of post-disaster measures implemented after the 2004 tsunami, by conducting selected interviews among the participants of the 2015 international seminar ‘‘11 Years after the Indian Ocean Tsunami 2004'' and a broader online survey. Information was sought about(1) the current state of vulnerability of the local population in the regions affected;(2) the main lessons that have been identified to improve project design and management of recovery and vulnerability reduction;and(3) project sustainability implications with respect to the state of today's vulnerability. Based on the analysis of the information on these three priority areas, selected tasks for future disaster risk management are identified, such as more integrative planning and improved coordination with international organizations and local people.

关键词： Disaster risk management Recovery Sustainability Indian Ocean Tsunami Post-disaster measures Vulnerability

Promotion of structural plasticity in area V2 of visual cortex prevents against object recognition memory deficits in aging and Alzheimer's disease rodents

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neural Regeneration Research 2024年第8期19卷 1835-1841页

作者： Irene navarro-Lobato mariam Masmudi-martín Manuel F.López-Aranda Juan F.López-Téllez Gloria Delgado Pablo Granados-Durán celia Gaona-Romero marta Carretero-Rey Sinforiano Posadas maría E.Quiros-Ortega Zafar U.Khan Laboratory of neurobiology Centro de Investigaciones Médico Sanitarias(CIMES)University of MalagaMalagaSpain Department of Medicine Faculty of MedicineUniversity of MalagaMalagaSpain Centro de Investigación Biomédica en Red de Enfermedades neurodegenerativas(CIBERnED) Institute of Health Carlos IIIMadridSpain the Donders Institute for Brain Cognition and Behaviour Radboud UniversityNijmegenThe Netherlands the Brain Metastasis Group National Cancer Research Centre(CNIO)MadridSpain the Department of neurobiology University of California-Los AngelesLos AngelesCAUSA

Memory deficit,which is often associated with aging and many psychiatric,neurological,and neurodegenerative diseases,has been a challenging issue for *** till now,all potential drug candidates have failed to produce satisfa ctory ***,in the search for a solution,we found that a treatment with the gene corresponding to the RGS14414protein in visual area V2,a brain area connected with brain circuits of the ventral stream and the medial temporal lobe,which is crucial for object recognition memory(ORM),can induce enhancement of *** this study,we demonstrated that the same treatment with RGS14414in visual area V2,which is relatively unaffected in neurodegenerative diseases such as Alzheimer s disease,produced longlasting enhancement of ORM in young animals and prevent ORM deficits in rodent models of aging and Alzheimer’s ***,we found that the prevention of memory deficits was mediated through the upregulation of neuronal arbo rization and spine density,as well as an increase in brain-derived neurotrophic factor(BDnF).A knockdown of BDnF gene in RGS14414-treated aging rats and Alzheimer s disease model mice caused complete loss in the upregulation of neuronal structural plasticity and in the prevention of ORM *** findings suggest that BDnF-mediated neuronal structural plasticity in area V2 is crucial in the prevention of memory deficits in RGS14414-treated rodent models of aging and Alzheimer’s ***,our findings of RGS14414gene-mediated activation of neuronal circuits in visual area V2 have therapeutic relevance in the treatment of memory deficits.

关键词： behavioral performance brain-derived neurotrophic factor cognitive dysfunction episodic memory memory circuit activation memory deficits memory enhancement object recognition memory prevention of memory loss regulator of G protein signaling