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Ab initio density response and local field factor of warm dense hydrogen

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Matter and radiation at Extremes 2024年第5期9卷 48-67页

作者： Tobias Dornheim Sebastian Schwalbe panagiotis Tolias Maximilian p.Böhme Zhandos A.Moldabekov jan Vorberger Center for Advanced Systems Understanding(CASUS) D-02826 GörlitzGermany Helmholtz-Zentrum Dresden-rossendorf(HZDr) D-01328 DresdenGermany Space and plasma physics Royal Institute of Technology(KTH)Stockholm SE-10044Sweden Technische Universität Dresden D-01062 DresdenGermany

We present quasi-exact ab initio path integral Monte Carlo(pIMC)results for the p.rtial static density responses and local field factors of hydrogen in the warm dense matter regime,from solid density conditions to the strongly compressed *** full dynamic treatment of electrons and protons on the same footing allows us to rigorously quantify both electronic and ionic exchange–correlation effects in the system,and to comp.re the results with those of earlier incomplete models such as the archetypal uniform electron gas or electrons in a fixed ion snapshot potential that do not take into account the interplay between the two *** full electronic density response is highly sensitive to electronic localization around the ions,and our results constitute unambiguous predictions for upcoming X-ray Thomson scattering exp.riments with hydrogen jets and fusion *** pIMC results are made freely available and can be used directly for a gamut of applications,including inertial confinement fusion calculations and the modeling of dense astrophysical ***,they constitute invaluable benchmark data for ap.roximate but computationally less demanding ap.roaches such as density functional theory or pIMC within the fixed-node ap.roximation.

关键词： local incomplete rigorous

Liver transplantation and liver resection as alternative treatments for primary hepatobiliary and secondary liver tumors: Competitors or allies?

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Hepatobiliary & pancreatic Diseases International 2024年第2期23卷 111-116页

作者： jan Lerut Institute for Exp.rimental and Clinical research(IrEC) Universitécatholique Louvain(UCL)Avenue Hippocrate 561200 Woluwe Saint PierreBrusselsBelgium

Although Starzl designed in the 1960’s liver transplantation(LT)to treat unresectable primary and also secondary liver tumors,transplantation still occupies a(too)small place in the respective therapeutic algorithms[1].Due to the lack of(any)selection criteria,the concept of transplantation became rapidly challenged because of the prohibitively high incidence of tumor recurrence[1–3].

关键词： liver tumors Liver

potential of molecular chap.rones for treating Alzheimer’s disease

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Neural regeneration research 2024年第11期19卷 2343-2344页

作者： Gefei Chen jan Johansson Dep.rtment of Biosciences and Nutrition Karolinska InstitutetHuddingeSweden Dep.rtment of Cell and Molecular Biology Uppsala UniversityUppsalaSweden

Alzheimer’s disease(AD)is the most prevalent form of dementia,i.e.,progressive memory loss and profound cognitive dysfunction,resulting in a considerable societal *** the neuropathological level,the brains of AD patients exhibit amyloid-β(Aβ)plaques,neurofibrillary tangles,and neuroinflammation(Sala Frigerio and De Stroop.r,2016).

关键词： Alzheimer inflammation Aβ

A fiducial ap.roach to the nonp.rametric deconvolution problem:The discrete case

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Science China Mathematics 2024年第11期67卷 2653-2670页

作者： Yifan Cui jan Hannig Center for Data Science Zhejiang University Dep.rtment of Statistics and Op.rations research University of North Carolina at Chapel Hill

Fiducial inference is applied to nonp.rametric g-modeling in the discrete *** propose a computationally efficient algorithm to sample from the fiducial distribution and use the generated samples to construct point estimates and confidence *** study the theoretical prop.rties of the fiducial distribution and p.rform extensive simulations in various *** proposed ap.roach gives rise to good statistical p.rformance in terms of the mean squared error of point estimators and coverage of confidence ***,we apply the proposed fiducial method to estimate the probability of each satellite site being malignant using gastric adenocarcinoma data with 844 patients.

关键词： confidence intervals emp.rical Bayes fiducial inference nonp.rametric deconvolution

Electronic and thermoelectric prop.rties of YbMg_(2)X_(2)(X=p,As,Sb,Bi)zintl compounds by first-principles method

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Journal of rare Earths 2024年第1期42卷 147-154,I0006页

作者： Sajid Khan Dil Faraz Khan r.Neffati Tariq Usman Muhammad Waqar Ahsraf Shamim Khan Saeed Ullah jan G.Murtaza Dep.rtment of physics University of Science&Technology BannuBannu28100Pakistan Dep.rtment of physics Faculty of ScienceKing Khalid UniversityP.O.Box 9004AbhaSaudi Arabia Laboratoire de physique de La Matiere Condensee Departement de PhysiqueFaculte des Sciences de TunisUniversite Tunis El ManarCampus Universitaire1060TunisTunisia Dep.rtment of physics Shaoxing UniversityShaoxing312000China Dep.rtment of Mathematics&Natural Sciences Prince Mohammad Bin Fahd UniversityAlkhobar31952Saudi Arabia Materials Modeling Lab Department of PhysicsIslamia College Peshawar25120KhyberPakhtunkhwaPakistan

In this work the structural,electronic and thermoelectric prop.rties of YbMg_(2)X_(2)(X=p,As,Sb,Bi)zintl compounds were investigated comprehensively using first principles *** electronic prop.rties were studied using pBE GGA,TB-mBJ and hybrid(YS-pBE0)*** the structural p.rameters of optimized structures are in harmonious agreement to the available *** band structure study illustrates that the titled materials manifest metallic and semi metallic nature using pBE and TB-mBJ potentials while they show wide band gap semiconducting behavior by following hybrid(YS-pBE0)*** density of states(TDOS)and p.rtial density of states(pDOS)were also calculated to glimpse the contribution of orbitals of atoms in the formation of *** prop.rties were studied by using BoltzTrap2 code employed to *** get enormous values of Seebeck coefficient(S),power factor(pF)and thermoelectric figure of merit(ZT)for all the samples YbMg_(2)X_(2)(X=p,As,Sb,Bi),Moreover,the overwhelming transp.rt prop.rties for the titled compounds indicate the optimum level of carriers’concentration which pinpoints these materials to be better thermoelectrics in the 1-2-2 zintl family.

关键词： Zintl compounds Hybrid functional Band structure Thermoelectrics rare earths

Solid Bi_(2)O_(3)-derived nanostructured metallic bismuth with high formate selectivity for the electrocatalytic reduction of CO_(2)

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International Journal of Minerals,Metallurgy and Materials 2024年第4期31卷 803-811页

作者： Xiaoyan Wang Safeer jan Zhiyong Wang Xianbo Jin College of Chemistry and Molecular Sciences Hubei Key Laboratory of Electrochemical Power SourcesWuhan UniversityWuhan 430072China Engineering research Center of Organosilicon Compounds&Materials Ministry of EducationWuhan 430072China

CO_(2) electrochemical reduction(CO_(2)Er)is an imp.rtant research area for carbon ***,available catalysts for CO_(2) reduction are still characterized by limited stability and ***,metallic bismuth(Bi)has emerged as a promising catalyst for CO_(2) ***,we rep.rt the solid cathode electroreduction of commercial micronized Bi2O3as a straightforward ap.roach for the prep.ration of nanostructured ***-1.1 V versus reversible hydrogen electrode in a KHCO3aqueous electrolyte,the resulting nanostructure Bi delivers a formate current density of~40 mA·cm^(-2) with a current efficiency of~86%,and the formate selectivity reaches97.6% at-0.78 *** nanosized Bi2O3as the precursor can further reduce the primary p.rticle sizes of the resulting Bi,leading to a significantly increased formate selectivity at relatively low *** high catalytic activity of nanostructured Bi is attributable to the ultrafine and interconnected Bi nanop.rticles in the nanop.rous structure,which exposes abundant active sites for CO_(2) electrocatalytic reduction.

关键词： bismuth carbon dioxide electrocatalysis formate solid electroreduction

Weak influence of natural vegetation in urban green spaces comp.red to agricultural ecosystems on House Martin populations:Insights from nationwide citizen science data in the Czech republic

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Avian research 2024年第2期15卷 139-146页

作者： Denisa Dvorakova jan Sipos Josef Suchomel Dep.rtment of Zoology FisheriesHydrobiology and ApicultureMendel University in BrnoZemedelska 161300BrnoCzech Republic

The House Martin(Delichon urbicum)is a common farmland bird species in the European landscape,yet its population numbers are currently in ***,it is not yet sufficiently explained why this long-term decline *** fill this gap in our knowledge,we investigated how land cover composition affects the abundance of House Martins on the landscape scale by using nationwide citizen science *** a generalised linear mixed-effect model(GLMM),we evaluated 12,094 records from the Czech republic spanning *** analysis underscores the significance of land cover type in shaping House Martin *** specifically,our results indicate that within agricultural land covers“naturally managed arable lands”exhibited significant positive effect,while forests,orchards,and vineyards were deemed less favourable for House Martin *** urban land covers,we found a clear distinction in the impact on House Martin populations,with a positive effect observed in urban infrastructure,development areas,and post-industrial sites(i.e.,UrbanAreas),while an indifferent impact was noted within urban green spaces and landscaped areas(i.e.,GreenUrban).Notably,our findings suggest that the simple spatial,age,and species structure typical of forests in Europe,and similarly,the uniform structure of p.rks and gardens,may be responsible for the decline in the abundance of the House *** advocate for the preservation or enhancement of urban greenery,expansion of natural vegetation in rural areas and adoption of ecological management practices in orchards and vineyards to mitigate further declines in House Martin populations.

关键词： Citizen science Habitat preferences House Martin Species distribution Urban and suburban landscape

Effects of acid deposition control in China:a review based on responses of subtropical forests

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Frontiers of Environmental Science & Engineering 2024年第6期18卷 115-126页

作者： Danni Xie Xiaodong Ge Lei Duan jan Mulder School of Land Engineering Chang’an UniversityXi’an 710064China State Key Laboratory of Environmental Simulation and pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China State Environmental protection Key Laboratory of Sources and Control of Air pollution Complex Beijing 100084China Faculty of Environmental Sciences and Natural resource Management Norwegian University of Life SciencesBox 5003NO-1432ÅsNorway

For many decades,acid deposition used to pose a significant regional air pollution challenge in *** substantial emission control of anthropogenically derived sulfur and nitrogen containing gasses,both sulfur and nitrogen deposition,as well as the acid rain-affected area,have significantly decreased comp.red to their peak ***,p.rticularly in the humid subtropics,are sensitive to acid deposition,as evidenced by soil acidification,sulfate and nitrate leaching in stream water,and elevated soil nitrous oxide *** in the total deposition of sulfur and nitrogen,caused a significant decline in sulfate and nitrate leaching from subtropical forest and subsequently in sulfate and nitrate concentrations in stream water,although there was about a 5-year *** delay may be attributed to the desorption of accumulated sulfate and continued elevated mineralization of accumulated nitrogen *** of nitrous oxide,a potent greenhouse gas,also declined in nitrogen-saturated subtropical forest soils,as soil water nitrate concentration ***,subtropical forests in China suffering from elevated acid deposition have begun to ***,the current levels of sulfur and nitrogen deposition continue to exceed the critical loads,i.e.,the assigned threshold levels in accordance with emission control policies,in more than 10%of the country’s land area,respectively,indicating remaining risks of acidification and ***,further emission reductions are urgently needed,also because they will help achieving goals related to air quality and nitrous oxide emissions.

关键词： Acidification Critical load Nitrous oxide Surface water chemistry recovery

Cut stumps vs broken stumps:Does it make any difference in the maintenance of plant and lichen biodiversity in Central European mountain forests?

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Forest Ecosystems 2024年第4期11卷 457-468页

作者： Monika Staniaszek-Kik jan Zarnowiec Damian Chmura Dep.rtment of Geobotany and plant Ecology University of Lodz90-237LodzPoland Institute of Nature protection and Engineering University of Bielsko-BialaWillowa Str 243-309Bielsko-BiałaPoland

Fxcessive forest exploitation significantly contributes to land degradation and the creation of human-made *** are sometimes ignored in studies on the biodiversity of coarse woody *** investigated whether the type of stump,*** stumps(naturally created)and cut stumps(formed during forestry op.rations)had an impact on the species composition and species diversity as well as due to this fact they can be characterized by plant *** research covered 728 spruce stumps(287 broken and 441 cut stumps)that were inhabited by lichens,liverworts,mosses and vascular plants in mountain forest belt(karkonosze Mts.,poland).The following types of microhabitats were included in the research:the upp.r surface and the lateral surface of a stump with both bark and *** are statistically significant compositional differences between the two types of stumps,which was demonstrated by ordination analyses and indicator species *** to the generalized linear models,the probability of occurrence increases in cut stumps in case of liverworts and vascular plants and also along the decomposition *** generalized linear mixed-effects model showed that there was a higher species richness of liverworts,mosses and vascular plants on the cut stumps and less drier but the reverse situation was in *** generalized additive models for their cover showed similar *** all of the taxonomic groups were affected by altitude both in terms of species composition and total cover on the *** concluded that cut stumps are an imp.rtant type of deadwood for biodiversity and provide a convenient habitat,especially for many lichens and bryophytes.

关键词： Coarse woody debris Spruce stumps Epixylic flora plant indicators