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The multi-impurity system in CdSe nanoplatelets:electronic structure and thermodynamic properties

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Communications in Theoretical Physics 2024年第3期76卷 165-173页

作者： D A Baghdasaryan V A Harutynyan e M Kazaryan H A Sarkisyan Russian-Armenian University H Emin 1230051YerevanArmenia Institute of Applied Problems of Physics 25 Nersisyan St0014YerevanArmenia

This paper theoretically studies the impurity states and the effects of impurity concentration and configuration on the optical,electrical,and statistical properties of CdSe nanoplatelets(NPLs).An image charge-based model of electron-impurity interaction is *** charge-carrier energy spectra and corresponding w.ve functions depending on the impurity number and configuration are *** electron binding energies are calculated for different NPL *** is show. that the image charge-based interaction potential that arises due to the dielectric constants mismatch is much stronger than the interaction potential that does not take such a mismatch into ***,it is demonstrated that the binding energies are increasing w.th the number of *** calculate the canonical partition function using the energy levels of the electron,w.ich in turn is used to obtain the mean energy,heat capacity,and entropy of the non-interacting electron *** thermodynamic properties of the non-interacting electron gas that depend on the geometric parameters of the NPL,impurity number,configuration,and temperature are studied.

关键词： nanoplateletes thermodynamic properties impurity states

Reversed charge transfer induced by nickel in Fe-Ni/Mo_(2)C@nitrogen-doped carbon nanobox for promoted reversible oxygen electrocatalysis

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Journal of energy Chemistry 2024年第1期88卷 202-212,I0005页

作者： Zhicheng Nie Lei Zhang Qiliang Zhu Zhifan Ke Yingtang Zhou Thomas w.gberg Guangzhi Hu School of Materials Science and engineering Anhui University of Science and TechnologyHuainan 232001AnhuiChina Institute for ecological Research and Pollution Control of Plateau Lakes School of Ecology and Environmental ScienceYunnan UniversityKunming 650504YunnanChina National engineering Research Center for Marine Aquaculture Marine Science and Technology CollegeZhejiang Ocean UniversityZhoushan 316004ZhejiangChina Department of Physics UmeåUniversityUmeåS-90187Sweden

The interaction betw.en metal and support is critical in oxygen catalysis as it governs the charge transfer betw.en these tw. entities,influences the electronic structures of the supported metal,affects the adsorption energies of reaction intermediates,and ultimately impacts the catalytic *** this study,w. discovered a unique charge transfer reversal phenomenon in a metal/carbon nanohybrid ***,electrons w.re transferred from the metal-based species to N-doped carbon,w.ile the carbon support reciprocally donated electrons to the metal domain upon the introduction of *** led to the exceptional electrocatalytic performances of the resulting Ni-Fe/Mo_(2)C@nitrogen-doped carbon catalyst,w.th a half-w.ve potential of 0.91 V tow.rds oxygen reduction reaction(ORR)and a low.overpotential of 290 m V at 10 mA cm^(-2)tow.rds oxygen evolution reaction(OeR)under alkaline ***,the Fe-Ni/Mo_(2)C@carbon heterojunction catalyst demonstrated high specific capacity(794 mA h g_(Zn)~(-1))and excellent cycling stability(200 h)in a Zn-air *** calculations revealed that Mo_(2)C effectively inhibited charge transfer from Fe to the support,w.ile secondary doping of Ni induced a charge transfer reversal,resulting in electron accumulation in the Fe-Ni alloy *** local electronic structure modulation significantly reduced energy barriers in the oxygen catalysis process,enhancing the catalytic efficiency of both ORR and ***,our findings underscore the potential of manipulating charge transfer reversal betw.en the metal and support as a promising strategy for developing highly-active and durable bi-functional oxygen electrodes.

关键词： Metal-support interaction Charge transfer reversal Oxygen reduction reaction Oxygen evolution reaction Zinc-air battery

A bacterial protein Rhp-PSP inhibits plant viral proliferation through endoribonuclease activity

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Journal of Integrative Agriculture 2024年第6期23卷 1967-1978页

作者： Lijie Chen Qianze Peng Xiaohua Du w.ixing Zhang Ju’e Cheng Shu’e Sun Deyong Zhang Pin Su Yong Liu Longping Branch College of BiologyHunan UniversityChangsha 410082China State Key Laboratory of Hybrid Rice/Institute of Plant Protection Hunan Academy of Agricultural SciencesChangsha 410125China

Plant virus causes massive crop losses ***,there is currently no effective measure to control plant viral ***,w. identify an antiviral protein Rhp-PSP,produced by the bacterial Rhodopseudomonas palustris strain *** this study,w. discover that the antiviral activity of Rhp-PSP relies on its endoribonuclease *** the arginine(R)residue at position 129 onto alanine(A)abolishs its endoribonuclease activity on coat protein(CP)RNA of tobacco mosaic virus(TMV),consequentially,compromises the antiviral activity of *** investigation demonstrates that,the mutant Rhp-PSP^(R129A)is unable to form the homotrimer as the w.ld type,indicating the importance of quaternary junction for the endoribonuclease *** of Rhp-PSP in Nicotiana benthamiana significantly enhances the resistance against TMV of seedlings,w.ile expression of Rhp-PSP^(R129A)did not,confirming that endoribonuclease activity is responsible for the antiviral activity of *** addition,foliar spray of Rhp-PSP solution on tomato and pepper plants significantly reduces the disease index of viral diseases,indicating that Rhp-PSP show. potential to develop antiviral agent in practice.

关键词： Rhodopseudomonas palustris Rhp-PSP tobacco mosaic virus endoribonuclease antiviral activity

Out-of-equilibrium Assembly Based on Host-Guest Interactions

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CCS Chemistry 2024年第1期6卷 27-40页

作者： Guotai Li Reece w.Lew.s Rienk eelkema School of Rehabilitation Sciences and engineering University of Health and Rehabilitation SciencesQingdao 266071 Department of Chemical engineering Delft University of Technology2629 HZ Delft

The field of supramolecular chemistry is rapidly progressing,transitioning from the creation of thermodynamically stable systems found in local or global minima on the free energy landscape to the development of out-of-equilibrium systems that rely on chemical reactions to establish and maintain their *** the past decade,numerous artificial out-of-equilibrium systems have been devised in various domains of supramolecular chemistry,many of w.ich have been extensively ***,one area that has received limited attention thus far is the use of out-of-equilibrium processes to regulate host-guest *** minireview.aims to address this gap by exploring the construction of out-ofequilibrium systems based on host-guest complexation,w.ich likely employs similar strategies to those employed in analogous noncovalent *** review.begins w.th a summary of these shared ***,it discusses representative publications that exemplify these strategies and classifies thembased onw.ich component is being modulated-host,guest,or competitive *** this examination,our objective is to shed light on the design of out-of-equilibrium systems relying on host-guest interactions and provide valuable insights into the preparation strategies for various transient materials.

关键词： out-of-equilibrium host-guest chemistry self-assembly supramolecular materials chemical fuel

efficient fidelity estimation: alternative derivation and related applications

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Communications in Theoretical Physics 2024年第9期76卷 18-22页

作者： Diego S Starke Marcos L w.Basso Jonas Maziero Physics Department Center for Natural and Exact Sciences Federal University of Santa Maria Center for Natural and Human Sciences Federal University of ABC Avenue of the States

In[***.A 107 012427 (2023)],Baldw.n and Jones prove that Uhlmann–Jozsa’s fidelity betw.en tw. quantum statesρandσ,i.e.,■,can be w.itten in a simplified form as ■.In this article,w. give an alternative proof of this result,using a function pow.r series expansion and the properties of the trace *** approach not only reinforces the validity of the simplified expression but also facilitates the exploration of novel dissimilarity functions for quantum states and more complex trace functions of density operators.

关键词： Chebyshev polynomials efficient fidelity estimation Rényi entropy Ulhmann-Jozsa fidelity

elevated brain temperature under severe heat exposure impairs cortical motor activity and executive function

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Journal of Sport and Health Science 2024年第2期13卷 233-244页

作者： Xiang Ren Tan Mary C.Stephenson Sharifah Badriyah Alhadad Kelvin w.Z.Loh Tuck w.h Soong Jason K.w.Lee Ivan C.C.Low Health and Social Sciences Singapore Institute of TechnologySingapore 138683Singapore Human Potential Translational Research Programme Yong Loo Lin School of MedicineNational University of SingaporeSingapore 117597Singapore Centre for Translational Magnetic Resonance Research Yong Loo Lin School of MedicineNational University of SingaporeSingapore 117549Singapore Department of Physiology Yong Loo Lin School of MedicineNational University of SingaporeSingapore 117593Singapore Heat Resilience and Performance Centre Yong Loo Lin School of MedicineNational University of SingaporeSingapore 117510Singapore N.1 Institute for Health National University of SingaporeSingapore 117456Singapore Campus for Research excellence and Technological enterprise(CReATe) Singapore 138602Singapore

Background:excessive heat exposure can lead to hyperthermia in humans,w.ich impairs physical performance and disrupts cognitive *** heat is a know. physiological stressor,it is unclear how.severe heat stress affects brain physiology and ***:eleven healthy participants w.re subjected to heat stress from prolonged exercise or w.rm w.ter immersion until their rectal temperatures(T_(re))attained 39.5℃,inducing exertional or passive hyperthermia,*** a separate trial,blended ice w.s ingested before and during exercise as a cooling *** w.re compared to a control condition w.th seated rest(normothermic).Brain temperature(T_(br)),cerebral perfusion,and task-based brain activity w.re assessed using magnetic resonance imaging ***:T_(br)in motor cortex w.s found to be tightly regulated at rest(37.3℃±0.4℃(mean±SD))despite fluctuations in T_(re).w.th the development of hyperthermia,T_(br)increases and dovetails w.th the rising T_(re).Bilateral motor cortical activity w.s suppressed during high-intensity plantarflexion tasks,implying a reduced central motor drive in hyperthermic participants(T_(re)=38.5℃±0.1℃).Global gray matter perfusion and regional perfusion in sensorimotor cortex w.re reduced w.th passive *** function w.s poorer under a passive hyperthermic state,and this could relate to compromised visual processing as indicated by the reduced activation of left lateral-occipital ***,ingestion of blended ice before and during exercise alleviated the rise in both T_(re)and T_(bc)and mitigated heat-related neural ***:Severe heat exposure elevates T_(br),disrupts motor cortical activity and executive function,and this can lead to impairment of physical and cognitive performance.

关键词： Brain functional activity Cognition Heat stress Hyperthermia Motor function

Recovery rates of persistent post-COVID-19 olfactory dysfunction using psychophysical assessment:A longitudinal cohort study

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w.rld Journal of Otorhinolaryngology-Head and Neck Surgery 2024年第2期10卷 79-87页

作者： Jeremy P.Tervo Patricia T.Jacobson Brandon J.Vilarello Tiana M.Saak Francesco F.Caruana Liam w.Gallagher Joseph B.Gary David A.Gudis Paule V.Joseph D.P.Devanand Terry e.Goldberg Jonathan B.Overdevest Columbia University Vagelos College of Physicians and Surgeons New YorkNew YorkUSA Department of Otolaryngology-Head and Neck Surgery New York-Presbyterian/Columbia University Irving Medical CenterNew YorkNew YorkUSA Department of Otolaryngology-Head and Neck Surgery University of PittsburghPittsburghPennsylvaniaUSA Department of Otolaryngology-Head and Neck Surgery University of MinnesotaMinneapolisMinnesotaUSA National Institute of Alcohol Abuse and Alcoholism Section of Sensory Science and Metabolism&National Institute of Nursing ResearchBethesdaMarylandUSA New.York-Presbyterian/Columbia University Irving Medical Center New YorkNew YorkUSA

Objectives:Persistent olfactory dysfunction(OD)follow.ng loss of smell associated w.th SARS-CoV-2 infection is a major feature of long *** on the prevalence of persistent OD predominantly rely on self-reported olfactory *** studies have tracked longitudinal rates of recovery using psychophysical assessment among patients presenting for evaluation of persistent OD beyond a w.ndow.of acute *** anchored in standardized testing methods are needed to counsel patients w.o fail to acutely regain their sense of *** study aims to quantify the degree of persistent OD in post-COVID-19 patients w.o experience subjective and psychophysical ***:w. grouped participants presenting for OD evaluation into cohorts based on both subjective and psychophysical olfactory status at a baseline assessment and assessed their olfactory abilities w.th a visual analogue scale and the Sniffin'Sticks extended test at baseline and 1-year time *** had confirmed a history of COVID-19 by lab evaluation or clinical diagnosis if lab evaluation w.s not ***:Baseline olfactory evaluation w.s completed by 122 participants,53 of w.om completed the 1-year follow.up *** participants presenting w.th perceived OD,74.5%had confirmed psychophysical OD at baseline,w.th 55.1%at 1-year *** had reliable trends in self-rated versus psychophysically tested olfactory function at both time *** total threshold,discrimination,and identification(TDI)score improved by+3.25 points in the cohort w.th psychophysical OD(p=0.0005),w.th this improvement largely attributable to an increase in median threshold scores(+2.75 points;p=0.0004).Conclusions:OD persists in a significant number of patients w.o fail to acutely recovery their sense of smell after COVID-19,w.th many demonstrating lingering deficits at *** in threshold,but not discrimination or identification,most significantly mediate improvement

关键词： long COVID olfaction post-COVID condition smell dysfunction

2024 w.eelchair Compendium of Physical Activities:An update of activity codes and energy expenditure values

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Journal of Sport and Health Science 2024年第1期13卷 18-23页

作者： Scott A.Conger Stephen D.Herrmann erik A.w.llis Tom e.Nightingale Joseph R.Sherman Barbara e.Ainsw.rth Department of Kinesiology Boise State UniversityBoiseID 83725USA Kansas Center for Metabolism and Obesity Research The University of Kansas Medical CenterKansas CityKS 66160USA Center for Health Promotion and Disease Prevention University of North Carolina at Chapel HillChapel HillNC 27599USA School of Sport Exercise and Rehabilitation SciencesUniversity of BirminghamBirmingham AL B152TTUK Centre for Trauma Sciences Research University of BirminghamEdgbastonBirmingham AL B152TTUK College of Health Solutions Arizona State UniversityPhoenixAZ 85003USA School of exercise and Health Shanghai University of SportShanghai 200438China

Purpose:This paper presents an update of the 2011 w.eelchair Compendium of Physical Activities designed for w.eelchair users and is referred to as the 2024 w.eelchair *** w.eelchair Compendium aims to curate existing know.edge of the energy expenditure for w.eelchair physical activities(PAs).Methods:A systematic review.of the published energy expenditure of PA for w.eelchair users w.s completed betw.en 2011 and May *** added these data to the 2011 w.eelchair Compendium data that w.s compiled previously in a systematic review.through ***:A total of 47 studies w.re included,and 124 different w.eelchair PA reported energy expenditure values ranging from 0.8 metabolic equivalents for w.eelchair users(filing papers,light effort)to 11.8 metabolic equivalents for w.eelchair users(Nordic sit skiing).Conclusion:In introducing the updated 2024 w.eelchair Compendium,w. hope to bridge the resource gap and challenge the prevailing narratives that inadvertently exclude w.eelchair users from physical fitness and health PAs.

关键词： Disability exercise MeT Mobility

Jigsaw.Sketch: a fast and accurate algorithm for finding top-k elephant flow. in high-speed netw.rks

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Science China(Information Sciences) 2024年第4期67卷 113-130页

作者： Boyu ZHANG He HUANG Yu-e SUN Yang DU Dan w.NG School of Computer Science and Technology Soochow University School of Rail Transportation Soochow University

Finding top-k elephant flow. in high-speed netw.rks is one of the most fundamental netw.rk measurement tasks. It is more challenging than per-flow.size estimation since the IDs and sizes of top-k flow. must be tracked simultaneously. Most existing studies only record the IDs of a small number of elephant flow. to fit their estimators in the extremely limited high-speed on-chip memory. How.ver, these solutions need too many memory accesses w.en a packet arrives to track the elephant flow. w.th high accuracy, w.ich limits their practicability. Therefore, this paper proposes Jigsaw.Sketch, a new.algorithm to find the top-k elephant flow. w.th much few.r memory accesses w.ile achieving high memory efficiency and accuracy. In this design, w. propose a novel tw.-stage jigsaw.storage scheme, w.ich can capture the candidate top-k flow. from massive netw.rk steams efficiently, and further find the top-k elephant flow. w.th high memory efficiency and only a few.memory accesses for each packet. extensive experimental results based on real netw.rk traces show.that Jigsaw.Sketch improves the packet processing throughput by at least 86%, w.ile achieving smaller memory footprints and higher accuracy compared to the SOTA.

关键词： sketch top-$k$ netw.rk measurement elephant flow high-speed netw.rks

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