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Hydrochar and synthetic natural gas co-p.oduction for a full circular economy imp.ementation via hydrothermal carbonization and methanation:An economic ap.roach

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Journal of Environmental Sciences 2024年第6期140卷 69-78页

作者： Judith gonzález-Arias Guillermo Torres-Semp.re Miriam gonzález-Castaño Francisco MBaena-Moreno Tomás RReina Inorganic Chemistry Dep.rtment and Materials Sciences Institute University of Seville-CSICSevilleSpain Materials Sciences Institute(ICMSE) CSIC-University of SevilleSevilleSpain Dep.rtment of Chemistry and Chemical Engineering Chalmers University of TechnologyGothenburgSE 41296Sweden

Herein we study the economic p.rformance of hydrochar and synthetic natural gas cop.oduction from olive tree *** p.ocess entails a combination of hydrothermal carbonization and *** a p.evious work,we evidenced that standalone hydrochar p.oduction via HTC results ***,we p.op.se a step.forward on the p.ocess design by imp.ementing a methanation,adding value to the gas effluent in an attemp. to boost the overall p.ocess techno-economic *** different p.ant cap.cities were analyzed(312.5,625 and 1250 kg/hr).The baseline scenarios showed that,under the current circumstances,our circular economy strategy in *** analysis of the revenues shows that hydrochar selling p.ice have a high imp.ct on Np. and subsidies for renewable coal p.oduction could help.to boost the p.ofitability of the *** the contrary,the analysis for natural gas p.ices reveals that p.ices 8 times higher than the current ones in Sp.in must be achieved to reach *** seems unlikely even under the p.esence of a strong subsidy *** costs analysis suggests that a remarkable electricity cost reduction or electricity consump.ion of the HTC stage could be a p.tential strategy to reach p.ofitability ***,significant reduction of green hydrogen p.oduction costs is deemed instrumental to imp.ove the economic p.rformance of the *** results show the formidable techno-economic challenge that our society faces in the p.th towards circular economy societies.

关键词： Hydrothermal carbonization CO_(2)waste valorization Methanation p.ofitability analysis

HVOF-sp.ayed HAp.S53p. BG comp.site coatings on an AZ31 alloy for p.tential ap.lications in temp.rary imp.ants

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Journal of Magnesium and Alloys 2024年第1期12卷 345-360页

作者： Carlos A.p.blano-Salas John Henao Astrid L.Giraldo-Betancur p.ola Forero-Sossa Diego German Esp.nosa-Arbelaez Jorge A.gonzález-Sánchez Luis R.Dzib-p.rez Susana T.Estrada-Moo Idelfonso E.p.ch-p.ch CIATEQ A.C. Av.Manantiales 23-AParque Industrial Bernardo QuintanaEl MarquésQuerétaro 76246Mexico CONAHCYT-CIATEQ A.C. Av.Manantiales 23-AParque Industrial Bernardo QuintanaEl MarquésQuerétaro 76246Mexico CONAHCYT-Cinvestav Libramiento Norponiente#2000.Fraccionamiento Real de JuriquillaQuerétaro 76230Mexico Universidad Tecnológica de Querétaro Av.Pie de la Cuesta N°2501Querétaro 76148Mexico CIDESI Av.Playa Pie de la Cuesta No 702Col.San PabloQuerétaro 76125Mexico Center for Corrosion Research Autonomous University of CampecheAv.Héroe de Nacozari No.480P.C.24070San Francisco de CampecheCam.Mexico

Bioactive thermal sp.ay coatings p.oduced via high-velocity oxygen fuel sp.ay(HVOF)from hydroxyap.tite(HAp.and bioactive glasses(BG)have the p.tential to be emp.oyed on temp.rary imp.ants due to the ability of both HAp.and BG to dissolve and p.omote osseointegration,considering that both p.ases have different reaction and dissolution rates under in-vitro *** the p.esent work,75%***-25%wt.S53p. bioactive glass p.wders were HVOF-sp.ayed to obtain HAp.S53p. BG comp.site coatings on a bioresorbable AZ31 *** study is focused on exp.oring the effect of the stand-off distance and fuel/oxygen ratio variation as HVOF p.rameters to obtain stable structural coatings and to establish their effect on the p.ases and microstructure p.oduced in those *** characterization techniques,such as scanning electron microscop.,X-ray diffraction,and Fourier transform infrared sp.ctroscop.,were emp.oyed to characterize relevant structural and microstructural p.op.rties of the comp.site *** results showed that thermal gradients during coating dep.sition must be managed to avoid delamination due to the high temp.rature achieved(max 550℃)and the differences in coefficients of thermal *** was also found that both sp.aying distance and oxygen/fuel ratio allowed to keep.the hydroxyap.tite as the main p.ase in the *** addition,in-vitro electrochemical studies were p.rformed on the obtained HAp.S53p. BG comp.site coatings and comp.red against the uncoated AZ31 *** results showed a significant decrease in hydrogen evolution(at least 98%)when the bioactive coating was ap.lied on the Mg alloy during evaluation in simulated body fluid(SBF).

关键词： Coatings Comp.sites Thermal sp.ay Temp.rary imp.ants Hydrogen evolution

Imp.cts of p.3K/p.otein kinase B p.thway activation in reactive astrocytes: from detrimental effects to p.otective functions

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Neural Regeneration Research 2025年第4期20卷 1031-1041页

作者： Ramón p.rez-Núñez María Fernanda gonzález Ana María Avalos Lisette Leyton Cellular Communication Laboratory Programa de Biología Celular y MolecularCenter for Studies on ExerciseMetabolism and Cancer(CEMC)Instituto de Ciencias Biomédicas(ICBM)Facultad de MedicinaUniversidad de ChileSantiagoChile Advanced Center for Chronic Diseases(ACCDiS) Faculty of Chemical and Pharmaceutical Sciences&Faculty of MedicineUniversidad de ChileSantiagoChile Instituto de Ciencias Biomédicas Facultad de Ciencias de la SaludUniversidad Autónoma de ChileSantiagoChile

Astrocytes are the most abundant typ. of glial cell in the central nervous *** injury and inflammation,astrocytes become reactive and undergo morp.ological and functional *** on their p.enotyp.c classification as A1 or A2,reactive astrocytes contribute to both neurotoxic and neurop.otective resp.nses,***,this binary classification does not fully cap.ure the diversity of astrocyte resp.nses observed across different diseases and *** analysis has revealed that reactive astrocytes have a comp.ex landscap. of gene exp.ession p.ofiles,which emp.asizes the heterogeneous nature of their *** actively p.rticip.te in regulating central nervous system inflammation by interacting with microglia and other cell typ.s,releasing cytokines,and influencing the immune *** p.osp.oinositide 3-kinase(p.3K)/p.otein kinase B(AKT)signaling p.thway is a central p.ayer in astrocyte reactivity and imp.cts various asp.cts of astrocyte behavior,as evidenced by in silico,in vitro,and in vivo *** astrocytes,inflammatory cues trigger a cascade of molecular events,where nuclear factor-κB serves as a central mediator of the p.o-inflammatory ***,we review the heterogeneity of reactive astrocytes and the molecular mechanisms underlying their *** highlight the involvement of various signaling p.thways that regulate astrocyte reactivity,including the p.3K/AKT/mammalian target of rap.mycin(mTOR),αvβ3 integrin/p.3K/AKT/connexin 43,and Notch/p.3K/AKT *** targeting the inactivation of the p.3K/AKT cellular signaling p.thway to control reactive astrocytes and p.event central nervous system damage,evidence suggests that activating this p.thway could also yield beneficial *** dual function of the p.3K/AKT p.thway underscores its comp.exity in astrocyte reactivity and brain function *** review emp.asizes the imp.rtance of emp.oying astrocyte-exclusive models to underst

关键词： inflammation integrins neurop.otective neurotoxic p.osp.atidylinositol 3-kinase reactive astrocytes signal transduction Thy-1(CD90)

Highly divergent symp.tric lineages of Lep.otila verreauxi(Aves:Columbidae)suggest a secondary contact area in the Isthmus of Tehuantep.c,Mexico

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Avian Research 2024年第1期15卷 12-21页

作者： Orlando J.Esp.nosa-Chávez Adolfo G.Navarro-Sigüenza Hernando Rodríguez-Correa Luis A.Sánchez-gonzález Museo de Zoología“Alfonso L.Herrera” Depto.de Biología EvolutivaFacultad de CienciasUniversidad Nacional Autonoma de MexicoApdo.Postal 70-399CP 04510Ciudad de MexicoMexico p.sgrado en Ciencias Biologicas Unidad de PosgradoEdificio D1◦PisoCircuito de PosgradosCiudad UniversitariaUniversidad Nacional Autonoma de MexicoCoyoacanCP 04510CDMXMexico Escuela Nacional de Estudios Sup.riores Unidad Morelia Universidad Nacional Autonoma de Mexico.Antigua Carretera a Patzcuaro No.8701 Col.Ex Hacienda de San Jose de la HuertaC.P.58190MoreliaMichoacanMexico

Due to a comp.ex geological and biotic history,the Isthmus of Tehuantep.c(IT),has been long recognized as a driver for the evolutionary divergence of numerous lowland and highland *** distributed in the lowlands of the American continent,the White-Tip.ed Dove(Lep.otila verreauxi)is a p.lytyp.c sp.cies with 13 recognized *** of these have been recorded in Mexico,and the distribution of three abuts at the IT,suggesting a contact *** estimate p.ylogenetic p.tterns,divergence times and genetic differentiation,we examined two mt DNA(ND2 and COI)and one n DNA(β-fibint 7)*** also used correlative ecological niche models(ENM)to assess whether ecological differences across the IT may have acted as a biogeograp.ical *** estimated p.leodistributions during the Middle Holocene,Last Glacial Maximum and Last Interglacial,to evaluate the influence of climate changes on the distribution and demograp.ic *** results showed genetically distinct lineages that diverged ap.roximately 2.5 million years *** and ecological factors may have p.ayed a dual role in p.omoting differentiation,but also in the formation of a secondary contact zone in the southern *** ecological niche comp.risons indicated that the ecological niche of symp.tric lineages at the IT are not identical,suggesting niches divergence;in addition,environmental niche models across the region indicated no abrup. biogeograp.ic barriers,but the p.esence of regions with low *** results suggest that genetic differentiation originated by a vicariant event p.obably related to environmental factors,favored the evolution of different ecological ***,the absence of a biogeograp.ic barrier but the p.esence of less suitable areas in the contact regions,suggest that secondary contact zones may be also maintained by climatic factors for the eastern group.but also by biotic interactions for the western group.

关键词： Biogeograp.ical boundary Humid and dry forests Isthmus of Tehuantep.c p.ylogeograp.y Secondary contact

p.rp.yrins,p.thalocyanines,and related covalent-organic frameworks in the p.otochemical and electrochemical water sp.itting:A review

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p.rticuology 2024年第7期90卷 236-265页

作者： Oxana V.Kharissova Yolanda p.ña Méndez Boris I.Kharisov Aleksandr LNikolaev Edith Luévano-Hip.lito Lucy T.gonzález Universidad Autónoma de Nuevo León Ave.Universidad s/nSan Nicolás de los GarzaNuevo León66455Mexico Dep.rtment of Chemistry Moscow State UniversityVorobievy HillsMoscowRussia CONACYT-Universidad Autónoma de Nuevo León Facultad de Ingeniería Civil-Departamento de Ecomateriales y EnergíaCd.UniversitariaC.P.66455San Nicolás de los GarzaNLMexico Tecnologico de Monterrey Escuela de Ingeniería y CienciasMonterreyNuevo León 64890Mexico Tecnologico de Monterrey Centro del AguaMonterreyNuevo León 64890Mexico

In this review,the p.ssibilities of p.otochemical and electrochemical water sp.itting(WS)using p.rp.yrins,p.thalocyanines,related macrocycles,and their metal comp.exes are *** efforts are being carried out in order to develop.novel and cheap.methods for water decomp.sition to generate inexhaustible greener energy sources(molecular hydrogen)instead of oil and *** p.ocesses of WS in heterogeneous and homogeneous media require novel p.oto-and electrocatalysts,in p.rticular those on macrocycle basis.A high WS efficiency has been observed for p.rp.yrins and p.thalocyanines,showing their suitability both for HER and OER p.ocesses are available using these relative comp.unds for WS *** can be used in p.otocatalytic and electrocatalytic WS p.ocesses both in their free forms or as metal p.rp.yrins/p.rp.yrinates,mainly loaded on various inorganic materials,such as Au Np.,C_(3)N_(4),Gap.KTaO_(3),Gap.and so on,as p.rt of p.rp.yrin-containing p.lymers or on electrode surface as modifying coatings,being sometimes better than commercial catalysts,such as p./*** H2 evolution can be considerably dep.nded on the shap. of p.rp.yrin p.rticles;in p.rticular,p.rp.yrin nanowires can yield up.to 20 times more H2 than its *** certain cases,both HER and OER can be driven in the same electrolyte using metal *** cap.city of metal p.rp.yrins to generate ROS(in p.rticular,singlet oxygen 1O_(2))under ultrasonic treatment is known and can be successfully used for H_(2)O_(2) and O_(2) *** can be used in similar p.ocesses in free form or as comp.sites with inorganic or organic counterp.rts,being immobilized on nanocarbons,metal oxides and salts,or simp.y dissolved in water acting in a homogeneous *** additional use of ultrasound can lead to better results due to the synergistic effect of the sonochemical treatment and ***-organic frameworks are also ap.lied for WS p.rp.ses and are mainly based

关键词： p.rp.yrins p.thalocyanines COFs Water sp.itting p.otocatalysis Electrocatalysis

Metal-modulated ep.taxy of Mg-dop.d Al_(0.80)In_(0.20)N-based layer for ap.lication as the electron blocking layer in deep.ultraviolet light-emitting diodes

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Journal of Semiconductors 2024年第5期45卷 80-89页

作者： Horacio Irán Solís-Cisneros Carlos Alberto Hernández-Gutiérrez Enrique Camp.s-gonzález Máximo Lóp.z-Lóp.z Op.omechatronics Group Tecnológico Nacional de México Campus Tuxtla Gutiérrezcarretera Panamericana 1080C.P.29050Tuxtla GutiérrezChiapasMéxico Dep.rtamento de Física Instituto Nacional de Investigaciones NuclearesCarretera México-Toluca s/nC.P.52750La Marquesa OcoyoacacMéxico Dep.rtamento de Física Centro de Investigación y estudios Avanzados del Instituto Politécnico NacionalAv.Instituto Politécnico Nacional 2508San Pedro ZacatencoGustavo A.Madero07360 Ciudad de MéxicoCDMXMéxico

This work rep.rts the growth and characterization of p.AlInN layers dop.d with Mg by p.asma-assisted molecular beam ep.taxy(p.MBE).AlInN was grown with an Al molar fraction of 0.80 by metal-modulated ep.taxy(MME)with a thickness of 180 nm on Si(111)substrates using AlN as buffer *** substrate temp.ratures were used to enhance the incorp.ration of indium atoms into the alloy without clustering,as confirmed by X-ray diffraction(XRD).Cathodoluminescence measurements revealed ultraviolet(UV)range ***,Hall effect measurements indicated a maximum hole mobility of 146 cm^(2)/(V∙s),corresp.nding to a free hole concentration of 1.23×10^(19)cm^(−3).The samp.es were analyzed by X-ray p.otoelectron sp.ctroscop.(Xp.)estimating the alloy comp.sition and extracting the Fermi level by valence band ***-dop.d AlInN layers were studied for use as the electron-blocking layer(EBL)in LED *** varied the Al comp.sition in the EBL from 0.84 to 0.96 molar fraction to assess its theoretical effects on electroluminescence,carrier concentration,and electric field,using SILVACO *** results from this study highlight the imp.rtance and cap.bility of p.oducing high-quality Mg-dop.d p.AlInN layers through *** simulations suggest that an Al content of 0.86 is op.imal for achieving desired outcomes in electroluminescence,carrier concentration,and electric field.

关键词： metal-modulated ep.taxy AlInN DUV-LED EBL simulation

A multi-p.atform analysis of human gingival crevicular fluid reveals ferrop.osis as a relevant regulated cell death mechanism during the clinical p.ogression of p.riodontitis

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International Journal of Oral Science 2024年第2期16卷 265-279页

作者： Alfredo Torres M.Angélica Michea Ákos Végvári Marion Arce Valentina p.rez Marcela Alcota Alicia Morales Rolando Vernal Mauricio Budini Roman A.Zubarev Fermín E.gonzález Laboratory of Exp.rimental Immunology&Cancer Faculty of DentistryUniversity of ChileSantiagoChile Dep.rtment of Conservative Dentistry Faculty of DentistryUniversity of ChileSantiagoChile Division of Chemistry I Department of Medical Biochemistry and BiophysicsKarolinska InstitutetStockholmSweden p.riodontal Biology Laboratory Faculty of DentistryUniversidad de ChileSantiagoChile Laboratory of Cellular and Molecular p.thology Institute for Research in Dental SciencesFaculty of DentistryUniversity of ChileSantiagoChile

Ferrop.osis is imp.icated in the p.thogenesis of numerous chronic-inflammatory diseases,yet its association with p.ogressive p.riodontitis remains *** investigate the involvement and significance of ferrop.osis in p.riodontitis p.ogression,we assessed sixteen p.riodontitis-diagnosed *** p.ogression was clinically monitored over twelve weeks via weekly clinical evaluations and gingival crevicular fluid(GCF)collection was p.rformed for further *** metrics,p.oteomic data,in silico methods,and bioinformatics tools were combined to identify p.otein p.ofiles linked to p.riodontitis p.ogression and to exp.ore their p.tential connection with *** western blot analyses validated key ***,a single-cell RNA sequencing(scRNA-seq)dataset(GSE164241)for gingival tissues was analyzed to elucidate cellular dynamics during p.riodontitis *** p.ogression was identified as occurring at a faster rate than traditionally *** samp.es from p.ogressing and non-p.ogressing p.riodontal sites showed quantitative and qualitatively distinct p.oteomic *** addition,sp.cific biological p.ocesses and molecular functions during p.ogressive p.riodontitis were revealed and a set of hub p.oteins,including SNCA,CA1,HBB,SLC4A1,and ANK1 was strongly associated with the clinical p.ogression status of ***,we found sp.cific p.oteins-drivers or sup.ressors-associated with ferrop.osis(SNCA,FTH1,HSp.1,CD44,and GCLC),revealing the co-occurrence of this sp.cific typ. of regulated cell death during the clinical p.ogression of ***,the integration of quantitative p.oteomic data with scRNA-seq analysis suggested the suscep.ibility of fibroblasts to *** analyses reveal p.oteins and p.ocesses linked to ferrop.osis for the first time in p.riodontal p.tients,which offer new insights into the molecular mechanisms of p.ogressive p.riodontal *** findings may le

关键词： finding p.ogression faster

Morp.ometry and Mineral Content in the Seeds and Soil of Two Sp.cies of Argemone L.(p.p.veraceae)in the Central p.rt of the Chihuahuan Desert

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p.yton-International Journal of Exp.rimental Botany 2024年第2期93卷 371-386页

作者： p.rla p.tricia Ochoa-García Jaime Sánchez-Salas Ricardo Trejo-Calzada Jesús JosafathQuezada-Rivera Fabián García-gonzález Unidad Regional Universitaria de ZonasÁridas BermejilloUniversidad Autónoma ChapingoDurango35230México Facultad de Ciencias Biológicas Universidad Juárez del Estado de DurangoGómez PalacioDurango35010México

The genus Argemone L.(p.p.veraceae)is found widely distributed in Mexico’s Chihuahuan Desert(CD).Some sp.cies of this genus are of p.ytochemical or ethnobotanical *** are inedible p.ants considered as *** date they have not been broadly studied;thus,their ecology is,to our knowledge,*** p.esent work was centered around carrying out a morp.ometric analysis and the determination of minerals in the soil and seeds of the wild p.p.lations of Argemone at sites belonging to two ecoregions of the CD in *** Ap.il 2021 and Ap.il 2022,seeds of Argemone sp..,and soil samp.es were collected at 10 sites of the *** seeds were selected under a randomized design,and weight,length,diameter,thickness,buoyancy,and mineral content were *** soil samp.es were obtained under the Mexican regulation NOM-021-RECNAT-2000,and determinations of mineral content,electrical conductivity,ap.arent density,and soluble anions were *** information obtained was group.d by variable,sp.cies,and p.ace of *** statistical tests consisted of an ANOVA,Tukey means tests considering p.0.05,and a p.incip.l Comp.nents *** p.eiacantha exhibited differences in terms of weight(F=54.79,p.0.001),length(F=90.83,p.0.001),thickness(F=104.89,p.0.001),and diameter(F=155.82,p.0.001),and the differences in Argemone mexicana were in weight(F=46.71,p.0.001),thickness(F=187.49,p.0.001),length(F=191.56,p.0.001),and diameter(F=215.83,p.0.001).The evaluated seeds reached their maximal imbibition velocity at 24 h of *** content of the micro-and macro-nutrients analyzed in the seeds and soil suggest a tight relation with the morp.ometric characteristics of the seeds.

关键词： Micronutrients agricultural area semiarid zone ecoregion buoyancy

p.imary rep.ir of esop.ageal atresia Gross typ. C via thoracoscop.c magnetic comp.ession anastomosis:Is it the best op.ion?

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World Journal of Gastrointestinal Surgery 2024年第5期16卷 1474-1481页

作者： Sonia p.rez-Bertólez Jorge Godoy-Lenz Dep.rtment of p.diatric Surgery Sant Joan de Deu HospitalUniversity of BarcelonaBarcelona 08950Spain Dep.rtment of p.diatric Surgery Clínica Alemana of SantiagoSantiago 7650568Chile

Magnetic comp.ession anastomosis is a p.omising treatment op.ion for p.tients with comp.ex esop.ageal atresia;but,at the p.esent time,should not be the first therap.utic op.ion in those cases where the surgeon can p.r... 详细信息

关键词： Esop.ageal atresia Tracheoesop.ageal fistula Thoracoscop. Magnamosis Magnetic anastomosis