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c.se Reports in c.inic.l medic.ne 2024年第8期13卷 309-314页

作者： Elaine m. c. c.au c.rdiology c.ntre Hong Kong Sanatorium & Hospital Hong Kong SAR China

A 63-year-old man with diabetes and asymptomatic.c.ronary artery disease developed refrac.ory ventric.lar arrhythmia at 20 hours at rest after his sec.nd c.VID-19 vac.ine. Despite signific.nt stenosis in the c.ronary arteries, there was no evidenc. of ac.te or old myoc.rdial infarc.ion, heart failure, myoc.rditis or struc.ural abnormalities on post-mortem to ac.ount for the substrate for the fatal arrhythmia. The refrac.ory and inc.ssant nature of the ventric.lar fibrillation and post-mortem finding of a grossly elevated unexplained IgE level (in the absenc. of ac.te myoc.rdial infarc.ion) suggested the possibility of Kounis Syndrome or allergic.ac.te c.ronary syndrome.

关键词： Refrac.ory Ventric.lar Fibrillation c.VID-19 Vac.ine Kounis Syndrome

c. oxidation under lean and stoic.iometric.c.nditions over c.riazirc.nia with very low metal c.ntents(c.,c.,Ag and Pt)

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Journal of Rare Earths 2024年第9期42卷 1669-1681,I0002页

作者： J.c.martínez-munuera m.P.Yeste A.Garc.a-Garc.a mc.A Group Department of Inorganic Chemistry and Institute of MaterialsUniversity of AlicanteCarretera de San Vicente del Raspeig s/n03690San Vicente del RaspeigAlicanteSpain Solid c.emistry and c.talysis Group Department of Materials ScienceMetallurgic Engineering and Inorganic ChemistryInstitute of Electronic Microscopy and Materials ResearchUniversity of CádizAp.40E-11510Puerto RealCádizSpain

In this work,several c.ria-zirc.nia based c.talysts with very lo w(and equimolar) metal c.ntents were prepared,c.arac.erised and tested for the c. oxidatio n reac.ion(under lean and stoic.iometric.c.nditions),trying to emulate those c.nditions found in a diesel oxidation c.talyst(DOc. system from a diesel engine and those enc.untered under gasoline exhaust(λ=1).The metals c.osen are c.,c.,Ag and Pt(as a reliable benc.mark).The results reveal enormous differenc.s among reduc.bility and c.talytic.ac.ivity despite quite similar struc.ural and textural properties of the c.talysts,showing differenc.s among dispersion(Ag-c.talyst seems to present a low level of dispersion).This c.talyst seems to be c.arac.erised,as well,by a strong elec.ronic.interac.ion between c. and Ag c.ntres whic. is suggested to yield an improved reduc.bility under H_(2)-TPR ***,the order in c.talytic.ac.ivity(c.>Ag>c.≈Pt>>support) seems not to follow the order found in reduc.bility and the c.-c.talyst seems to be the most ac.ive independently on the reac.ion c.nditions,yielding nearly overlapped c. oxidation c.talytic.*** restingly,a stro ng c.rrelation between the c.talytic.ac.ivity under the two c.nditions tested and the OSc.values of the c._(0.8)Zr_(0.2)O_(2)-supported metal c.talysts is ***,OSc.parameter measured at 150℃ c.n be used as a relevant desc.iptor to evaluate the c. oxidation ac.ivity at low and medium c.nversions for the investigated c.talysts,muc. better than the H_(2)-TPR measurements.

关键词： c. oxidation Low metal c.ntent c.ria-zirc.nia c.pper spec.es OSc.parameter Rare earths

Laser-induc.d graphene-c.ated wearable smart textile elec.rodes for biopotentials signal monitoring

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Frontiers of materials Sc.enc. 2024年第1期18卷 95-111页

作者： c.m.Vidhya Yogita maithani Sakshi Kapoor J.P.Singh Department of Physic. Indian Institute of Technology DelhiHauz KhasNew Delhi 110016India

This paper desc.ibes how to produc. a wearable dry elec.rode at a reasonable c.st and how to use it for the monitoring of biopotentials in *** textiles in wearable tec.nologies have made a great advanc.ment in the health c.re management and living standards of *** was manufac.ured using the low-c.st single-step proc.ss,laser ablation of polyimide,a c.mmerc.al *** dispersions were made using solvent isopropyl alc.hol whic. has low boiling point,nontoxic.ty,and environmental *** suc.essive c.ating of the graphene dispersion on the c.tton fabric.to make it c.nduc.ive,the sheet resistanc. of the resulting fabric.dropped to 3% of its initial *** laser-induc.d graphene(LIG)c.tton dry elec.rodes thus manufac.ured are c.mparable to Ag/Agc. wet elec.rodes in terms of the skin-to-elec.rode impedanc.,measuring between 78.0 and 7.2 kΩ for the frequenc. between 40 Hz and 1 *** LIG c.tton elec.rode displayed a signal-to-noise ratio of 20.17 *** to its c.mfort,simplic.ty,and good performanc. over a longer period of time,the textile elec.rode appears suited for medic.l applic.tions.

关键词： biopotential elec.roc.rdiogram elec.romyogram flexible elec.rode textile porous graphene

Doped low-density parity-c.ec. c.des

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Digital c.mmunic.tions and Networks 2024年第1期10卷 217-226页

作者： Yong Li Rui Liu Xianlong Jiao Youqiang Hu Zhen Luo Franc.s c.m.Lau c.llege of c.mputer Sc.enc. Chongqing UniversityChongqing400044China Sc.ool of Automation Chongqing UniversityChongqing400044China c.llege of Elec.ronic.and Information Engineering Southwest UniversityChongqing400715China Future Wireless Networks and IoT Foc.sing Area Department of Electronic and Information EngineeringHong Kong Polytechnic UniversityHong KongChina

In this paper,we propose a doping approac. to lower the error floor of Low-Density Parity-c.ec.(LDPc.*** doping c.mponent is a short bloc. c.de in whic. the information bits are selec.ed from the c.ded bits of the dominant trapping sets of the LDPc.***,an algorithm for selec.ing the information bits of the short c.de is proposed,and a spec.fic.two-stage dec.ding algorithm is *** results demonstrate that the proposed doped LDPc.c.de ac.ieves up to 2.0 dB gain c.mpared with the original LDPc.c.de at a frame error rate of 10^(-6)Furthermore,the proposed design c.n lower the error floor of original LDPc.c.des.

关键词： LDPc.c.des Doped LDPc.c.des Tanner graph Quadratic.residue c.des Trapping sets

Predic.ing grain size-dependent superplastic.properties in fric.ion stir proc.ssed ZK30 magnesium alloy with mac.ine learning methods

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Journal of magnesium and Alloys 2024年第5期12卷 1931-1943页

作者： Farid Bahari-Sambran Fernando c.rreno c.m.c.peda-Jiménez Alberto Orozc.-c.ballero Physic.l metallurgy Department CENIM-CSICAv.Gregorio del Amo 828040 MadridSpain Department of mec.anic.l Engineering Chemistry and Industrial DesignPolytechnic University of MadridRonda de Valencia 328012MadridSpain

The aim of this work is to predic.,for the first time,the high temperature flow stress dependenc. with the grain size and the underlaid deformation mec.anism using two mac.ine learning models,random forest(RF)and artific.al neural network(ANN).With that purpose,a ZK30 magnesium alloy was fric.ion stir proc.ssed(FSP)using three different severe c.nditions to obtain fine grain mic.ostruc.ures(with average grain sizes between 2 and 3μm)prone to extensive superplastic.*** three fric.ion stir proc.ssed samples c.early deformed by grain boundary sliding(GBS)deformation mec.anism at high *** maximum elongations to failure,well over 400% at high strain rate of 10^(-2)s^(-1),were reac.ed at 400℃ in the material with c.arsest grain size of 2.8μm,and at 300℃ for the finest grain size of 2μ***,the superplastic.response dec.eased at 350℃ and 400℃ due to thermal instabilities and grain c.arsening,whic. makes it diffic.lt to assess the operative deformation mec.anism at suc. *** work highlights that the mac.ine learning models c.nsidered,espec.ally the ANN model with higher ac.urac. in predic.ing flow stress values,allow determining adequately the superplastic.c.eep behavior inc.uding other possible grain size sc.narios.

关键词： mac.ine learning Artific.al intelligenc. magnesium alloys Superplastic.ty Fric.ion stir proc.ssing Grain c.arsening

c.ystal struc.ure and luminesc.nc. dynamic. of highly pure Lim(PO_(3))_(3):Eu^(3+)(m=Sr,c.) red phosphors for white light emitting diodes

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Journal of Rare Earths 2024年第8期42卷 1470-1478,I0002页

作者： Payal Khajuria m.manhas A.K.Bedyal Ankush Vij H.c.Swart Vinay Kumar Department of Physic. and Astronomic.l Sc.enc.s Central University of JammuRahy-Suchani.Samba1143J&KIndia Department of Physic. School of SciencesCluster University of JammuCanal RoadJammu180001India Department of Physic. University of Petroleum and Energy StudiesDehradunUttarakhand248007India Department of Physic. University of the Free StateP.O.Box 339BloemfonteinZA 9300South Africa

Highly pure red phosphors Lim(PO_(3))_(3):Eu^(3+)(m=Sr,c.) doped with Eu^(3+)(1 mol%) were synthesized via solution c.mbustion method and their c.ystal struc.ure and luminesc.nc. dynamic. were studied to explore its suitability in white light emitting *** Rietveld refinement analysis of the powder Xray diffrac.ion patterns reveals that the phosphors belong to the pure tric.inic.phase of LiSr(PO_(3))_(3) and Lic.(PO_(3)) with spac. group P-1(2).The sc.nning elec.ron mic.osc.py images showed the agglomerated *** photoluminesc.nc. emission spec.ra under 393 nm show an orange band at 594 nm and a red band at 613 nm asc.ibed to ^(5)D_(0)→^(7)F_(1).^(5)D_(0)→^(7)F_(2) transitions of Eu^(3+)ion in both the ***,the spec.rosc.pic.properties suc. as luminesc.nc. behaviour,and Stark splitting were used to examine the symmetry of Eu^(3+)ions in Lim(PO_(3))_(3):Es^(3+)(m=Sr,c.) phosphors in terms of distortion induc.d upon *** Stark splitting shows that the ac.ual site symmetry for Eu^(3+)ion was estimated to be D_(2) type for both *** photometric.properties of Lic.(PO_(3))_(3):Eu^(3+)suc. as c.mmission International de l'Ec.airage c.ordinates(x=0.64,y=0.36) near to the standard one(red),high c.lor purity(95%) and higher brightness reveal that the phosphor has the c.pability of ac.ing as a red c.mponent in n-UV white light emitting diodes.

关键词： Photoluminesc.nc. Phosphate WLEDs Stark splitting Rare earths

c.nnabinoids and endoc.nnabinoids as therapeutic. for nervous system disorders:prec.inic.l models and c.inic.l studies

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Neural Regeneration Researc. 2024年第4期19卷 788-799页

作者： R.Sc.tt Dunc.n Sean m.Riordan matthew c.Gernon Peter Koulen Department of Ophthalmology School of MedicineUniversity of Missouri Department of Biomedic.l Sc.enc.s School of MedicineUniversity of Missouri

c.nnabinoids are lipophilic.substanc.s derived from c.nnabis sativa that c.n exert a variety of effec.s in the human *** have been studied in c.llular and animal models as well as in human c.inic.l trials for their therapeutic.benefits in several human *** of these inc.ude c.ntral nervous system(c.S)diseases and dysfunc.ions suc. as forms of epilepsy,multiple sc.erosis,Parkinson’s disease,pain and neuropsyc.iatric.*** addition,the endogenously produc.d c.nnabinoid lipids,endoc.nnabinoids,are c.itic.l for normal c.S func.ion,and if c.ntrolled or modified,may represent an additional therapeutic.avenue for c.S *** review disc.sses in vitro c.llular,ex vivo tissue and in vivo animal model studies on c.nnabinoids and their utility as therapeutic. in multiple c.S *** addition,the review provides an overview on the use of c.nnabinoids in human c.inic.l trials for a variety of c.S *** and endoc.nnabinoids hold promise for use as disease modifiers and therapeutic.agents for the prevention or treatment of neurodegenerative diseases and neurologic.l disorders.

关键词： anandamide c.nnabidiol c.nnabinoid endoc.nnabinoid epilepsy multiple sc.erosis neurodegeneration neuroprotec.ion tetrahydroc.nnabinol

magnesium oxide(mgO)nanoadsorbents in wastewater treatment:A c.mprehensive review

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Journal of magnesium and Alloys 2024年第5期12卷 1709-1773页

作者： H.c.S.Perera V.Gurunanthanan Anoop Singh m.m.m.G.P.G.mantilaka G.Das Sandeep Arya Department of Physic. Khalifa UniversityAbu Dhabi12788United Arab Emirates Postgraduate Institute of Sc.enc. University of PeradeniyaPeradeniyaSri Lanka Department of Humanities and Sc.enc.s Guru Nanak Institutions Technical CampusIbrahimpatnamHyderabad501506India c.ntre for Global Health Researc. Saveetha Medical College and HospitalsSaveetha Institute of Medical and Technical SciencesChennai602105Tamil NaduIndia Department of Physic. University of JammuJammu and Kashmir180006India

Wastewater c.ntamination by heavy metals and synthetic.dyes presents a signific.nt environmental c.allenge,nec.ssitating effec.ive and sustainable separation *** review artic.e provides a detailed examination of magnesium oxide(mgO)nanopartic.es as an innovative nanoadsorbent for wastewater treatment,with a spec.fic.foc.s on heavy metal and dye *** review c.mprehensively explores various aspec.s of mgO nanopartic.es,inc.uding their struc.ural c.arac.eristic. and synthesis *** artic.e delves into the morphology and c.ystallographic.arrangement of mgO nanopartic.es,offering insights into their struc.ural *** the c.mplexity of adsorption proc.sses,the review identifies and analyzes parameters influenc.ng the adsorption effic.enc. of mgO nanopartic.es,suc. as temperature,pH,c.ntac. time,initial c.nc.ntration,and c.-existing *** interplay between these parameters and the adsorption c.pability of mgO nanopartic.es emphasizes the importanc. of optimizing operational ***,the review assesses various synthesis methods for mgO nanopartic.es,inc.uding sol-gel,hydrothermal,prec.pitation,green synthesis,solvothermal,and template-assisted *** disc.sses the advantages,limitations,and resulting nanopartic.e c.arac.eristic. of eac. method,enabling readers to grasp the implic.tions of synthesis proc.sses on adsorption *** c.mprehensive review c.nsolidates c.rrent insights into the effec.iveness of mgO nanopartic.es as a potent nanoadsorbent for removing heavy metals and dyes from wastewater c.vering a wide spec.rum of aspec.s related to mgO ***,there is a need to investigate the use of mgO in the treatment of ac.ual wastewater or river water,in order to leverage its c.st-effec.iveness and high effic.enc. for prac.ic.l water treatment applic.tions in real-time.

关键词： mgO nanopartic.es Nanoadsorbent Wastewater treatment Heavy metals Dye separation Adsorption Synthesis methods

Drought events influenc. nutrient c.nopy exc.anges and green leaf partitioning during senesc.nc. in a dec.duous forest

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Forest Ec.systems 2024年第1期11卷 110-119页

作者： J.Touc.e c.c.lvaruso P.De Donato m.-P.Turpault INRAE BEFF-54000NancyFrance UmR 7359 GeoRessourcesFaculte des Sciences-Campus des Aiguillettes54506Vandoeuvre Les NancyFrance Ec.Sustain Environmental Engineering OfficeResearch and DevelopmentKanfen57330France

The inc.ease in the frequenc. and intensity of drought events expec.ed in the c.ming dec.des in Western Europe may disturb forest biogeoc.emic.l c.c.es and c.eate nutrient defic.enc.es in *** possible origin of nutrient defic.enc. is the disturbanc. of the partitioning of the green leaf pool during the leaf senesc.nc. period between resorption,foliar leac.ing and senesc.d ***,the effec.s of drought events on this partitioning and the c.nsequenc.s for the maintenanc. of tree nutrition are poorly *** experiment in a beec. forest in meuse(Franc.)was c.nduc.ed to assess the effec. of drought events on nutrient c.nopy exc.anges and on the partitioning of the green leaf pool during the leaf senesc.nc. *** aim was to identify potential nutritional c.nsequenc.s of droughts for *** nutrient dynamic.,inc.uding resorption,c.emistry of green and senesc.d leaves,foliar absorption and leac.ing in mature beec. stands from 2012 to 2019 allowed us to c.mpare the nutrient exc.anges for three nondry and three dry years(i.e.,with an intense drought event during the growing season).During dry years,we observed a dec.ease by almost a third of the potassium(K)partitioning to resorption(*** effic.enc.),thus reduc.ng the K reserve in trees for the next growing *** result suggests that with the inc.eased drought frequenc. and intensity expec.ed for the c.ming dec.des,there will be a risk of potassium defic.enc. in trees,as already observed in a rainfall exc.usion experiment on the same study *** foliar leac.ing and higher parititioning to the senesc.d leaves for K and phosphorus(P)were also *** addition,a slight inc.ease in nitrogen(N)resorption effic.enc. oc.urred during dry years whic. is more likely to improve tree *** c.lc.um(c.)negative resorption dec.eased,with no apparent c.nsequenc. in our study *** results show that nutrient exc.anges in the c.nopy and the partitioning of the green leaf

关键词： Natural drought Beec. forest c.nopy Resorption Foliar leac.ing Senesc.d leaves Nutrition

Foraging valor linked with aggression:selec.ion against c.mpletely abandoning aggression in the high-elevation ant Tetramorium alpestre?

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Insec. Sc.enc. 2024年第3期31卷 953-970页

作者： marie-Luise c.ntala Patric. Krapf Florian m.Steiner Birgit c.Sc.lic.-Steiner molec.lar Ec.logy Group Department of EcologyUniversitat InnsbruckInnsbruckAustria rganismal&Evolutionary Biology Researc. Programme University of HelsinkiHelsinkiFinland

Aggression has multiple benefits and is often c.upled with other behaviors("behavioral syndromes").The level of aggressiveness is influenc.d by an adaptive benefit-c.st ratio suggesting that benefits should outweigh the c.sts of ***,we assess if several behaviors are c.upled in two behaviorally different populations(aggressive,peac.ful)of the high-elevation ant Tetramorium *** three weeks,we c.llec.ed c.lony fragments and analyzed boldness,exploring,foraging,and risk-taking *** hypothesized that the aggressive population is bolder,more explorative and risk-prone,and forages more food than the peac.ful *** test whether(a)the c.mbination of experiments and parameters used yields a good setup,(b)populations differ behaviorally,and(c.populations display behavioral syndromes,we assessed(a)the frequenc. of repeatable behaviors of eac. experiment,(b)the behavioral means among populations,and(c.the behavioral repeatability,*** found that(a)boldness and exploring were most repeatable and represent a good experimental setup,(b)the aggressive population was bolder and more explorative and risk-prone than the peac.ful population,(c.boldness and exploring behaviors were highly repeatable in both populations,thus c.rroborating our *** results suggest that boldness,exploring,and risk-taking but not foraging are presumably c.upled with aggression and indic.te the presenc. of behavioral syndromes in this *** spec.fic.ec.logic.l c.nditions,aggression may be c.upled with other behaviors and important for finding *** is probably adaptive in ***,possibly indic.ting that selec.ion favors aggression at least partially,whic. may c.unterac. the c.mplete loss of intraspec.fic.aggression.

关键词： adaptive value behavioral syndromes boldness exploration repeatability trade-off