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Dynamics of self-hybridized exciton–polaritons in 2D halide perovskites

Light(Science & Applications) 2024年第1期13卷 13-22页

作者： Surendra b.Anantharaman Jason Lynch Christopher E.Stevens Christopher Munley Chentao Li Jin Hou Hao Zhang Andrew Torma Thomas Darlington francis Coen Kevin Li Arka Majumdar PJames Schuck Aditya Mohite Hayk Harutyunyan Joshua R.Hendrickson Deep Jariwala Department of Electrical and Systems Engineering University of PennsylvaniaPhiladelphiaPA19104USA KbR Inc. BeavercreekOH45431USA Air Force Research Laboratory Sensors DirectorateWright-Patterson Air Force BaseOH45433USA Department of Physics University of WashingtonSeattleWA98195USA Department of Physics Emory UniversityAtlantaGA30322USA Department of Chemical and biomolecular Engineering Rice UniversityHoustonTX77005USA Department of Materials Science and Nanoengineering Rice UniversityHoustonTX77005USA Applied Physics Program Smalley‐Curl InstituteRice UniversityHoustonTX77005USA Department of Mechanical Engineering Columbia UniversityNew YorkNY10027USA Department of Electrical and Computer Engineering University of WashingtonSeattleWA98195USA

Excitons,bound electron–hole pairs,in two-dimensional hybrid organic inorganic perovskites(2D HoIPs)are capable of forming hybrid light-matter states known as exciton-polaritons(E–Ps)when the excitonic medium is confined in an optical *** the case of 2D HoIPs,they can self-hybridize into E–Ps at specific thicknesses of the HoIP crystals that form a resonant optical cavity with the ***,the fundamental properties of these self-hybridized E–Ps in 2D HoIPs,including their role in ultrafast energy and/or charge transfer at interfaces,remain ***,we demonstrate that>0.5µm thick 2D HoIP crystals on Au substrates are capable of supporting multiple-orders of self-hybridized E–P *** E–Ps have high Q factors(>100)and modulate the optical dispersion for the crystal to enhance sub-gap absorption and *** varying excitation energy and ultrafast measurements,we also confirm energy transfer from higher energy E–Ps to lower energy E–***,we also demonstrate that E–Ps are capable of charge transport and transfer at *** findings provide new insights into charge and energy transfer in E–Ps opening new opportunities towards their manipulation for polaritonic devices.

关键词： charge polar excitation

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Enhanced detection of freeze‒thaw induced landslides in Zhidoi county(Tibetan Plateau,China)with Google Earth Engine and image fusion

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Advances in Climate Change Research 2024年第3期15卷 476-489页

作者： Jia-Hui YANG Yan-Chen GAo Lang JIA Wen-Juan WANG Qing-bai WU francis ZVoMUYA Miles DYCK Hai-Long HE College of Natural Resources and Environment Northwest A&F UniversityYangling 712100China State Key Laboratory of Frozen Soil Engineering Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China Department of Soil Science University of Manitob1Winnipeg MB R3T 2N2Canada Department of Renewable Resources University of Albert1Edmonton AB T6G 2H1Canad

Freeze‒thaw induced landslides(FTILs)in grasslands on the Tibetan Plateau are a geological disaster leading to soil *** landslides reduce biodiversity and intensify landscape fragmentation,which in turn are strengthen by the persistent climate change and increased anthropogenic ***,conventional techniques for mapping FTILs on a regional scale are impractical due to their labor-intensive,costly,and time-consuming *** study focuses on improving FTILs detection by implementing image fusion-based Google Earth Engine(GEE)and a random forest *** of multiple data sources,including texture features,index features,spectral features,slope,and vertical‒vertical polarization data,allow automatic detection of the spatial distribution characteristics of FTILs in Zhidoi county,which is located within the Qinghai‒Tibet Engineering Corridor(QTEC).We employed statistical techniques to elucidate the mechanisms influencing FTILs *** enhanced method identifies two schemes that achieve high accuracy using a smaller training sample(scheme A:94.1%;scheme D:94.5%)compared to other methods(scheme b:50.0%;scheme C:95.8%).This methodology is effective in generating accurate results using only~10%of the training sample size necessitated by other *** spatial distribution patterns of FTILs generated for 2021 are similar to those obtained using various other training sample sources,with a primary concentration observed along the central region traversed by the *** results highlight the slope as the most crucial feature in the fusion images,accounting for 93%of FTILs occurring on gentle slopes ranging from 0°to 14°.This study provides a theoretical framework and technological reference for the identification,monitoring,prevention and control of FTILs in *** developments hold the potential to benefit the management of grassland ecosystem,reduce economic losses,and promote grassland sustainability.

关键词： Permafrost degradation Random forest Thaw slump Spatial distribution Tibetan Plateau

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Hole-Selective Contact with Molecularly Tailorable Reactivity for Passivating High-Performing Inverted Perovskite Solar Cells

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CCS Chemistry 2024年第7期6卷 1654-1661页

作者： Wenlin Jiang Yingie Hu Fengzhu Li francis R.Lin Alex K-Y.Jen Department of Materials Science and Engineering City University of Hong KongKowloonHong Kong China 999077 Department of Chemistry City University of Hong KongKowloonHong Kong China 999077 Hong Kong Institute for Clean Energy City University of Hong KongKowloonHong Kong China 999077 State Key Laboratory of Marine Pollution City University of Hong KongKowloonHong Kong China 999077

The precisely customizable attributes of self-assembled monolayers(SAMs)molecules at the atomic level hold the potential to facilitate efficient hole selection and interface passivation ***,the correlation between the exposure of passivating groups on the surface and device performance remains ***,we introduce two newly designed SAM molecules,Cbz2S and Cbz2SMe,incorporating cyclic disulfide or two flanking thiomethyls by modifying the 4,5-position of carbazole to adjust the Lewis basicity of the SAM-modified *** possessing suitable energetic alignment,Cbz2S with more-exposed sulfur atoms exhibited inferior device performance due to excessive reactivity,leading to an overpopulation of PbI2 crystallites at the buried perovskite *** contrast,the screening effect from the methyl groups of Cbz2SMe optimized SAM reactivity,exquisitely integrating buried interface passivation and hole selection ***,the champion inverted perovskite solar cell(PSC)employing Cbz2SMe achieved an impressive power conversion efficiency of 24.42%,accompanied by prolonged *** work demonstrates the feasibility of incorporating Lewis-basic passivation groups into SAM molecules and elucidates the relationship between the reactivity of SAM passivation groups and device *** findings provide valuable insights for the design of novel multifunctional SAM molecules,further advancing the performance of PSCs.

关键词： self-assembled monolayer perovskite solar cell hole-selective layer carbazole derivatives defect passivation

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Storylines of family medicine Ⅹ:standing up for diversity,equity and inclusion

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Family Medicine and Community Health 2024年第S3期12卷 89-98页

作者： William b Ventres Leslie A Stone Wayne W bryant Jr Mario F Pacheco Edgar Figueroa francis N Chu Shailendra Prasad David N blane Na'amah Razon Ranit Mishori Robert L Ferrer Garrett S Kneese Family and Preventive Medicine University of Arkansas for Medical Sciences College of MedicineLittle RockArkansasUSA Family and Community Medicine University of New Mexico School of MedicineAlbuquerqueNew MexicoUSA Medicine Weill Cornell Medical CollegeNew YorkNew YorkUSA San Jose Family Medicine Residency Kaiser PermanenteSan JoseCaliforniaUSA Family Medicine and Community Health University of Minnesota Medical School—Twin Cities CampusMinneapolisMinnesotaUSA School of Health and Wellbeing University of GlasgowGlasgowUK Family and Community Medicine University of CaliforniaDavisSacramentoCaliforniaUSA Family Medicine Georgetown University School of MedicineWashingtonDistrict of ColumbiaUSA Family and Community Medicine UT Health San Antonio Long School of MedicineSan AntonioTexasUSA UC San Diego Family Medicine Residency Program San DiegoCaliforniaUSA

Storylines of Family Medicine is a 12-part series of thematically linked mini-essays with accompanying illustrations that explore the many dimensions of family medicine as interpreted by individual family physicians and medical educators in the USA and elsewhere around the ***‘Ⅹ:standing up for diversity,equity and inclusion’,authors address the following themes:‘The power of diversity—why inclusivity is essential to equity in healthcare’,‘Medical education for whom?’,‘Growing a diverse and inclusive workforce’,‘Therapeutic judo—an inclusive approach to patient care’,‘Global family medicine—seeing the world“upside down”’,‘The inverse care law‘,‘Social determinants of health as a lens for care’,‘Why family physicians should care about human rights’and‘Toward health equity—the opportunome’.May the essays that follow inspire readers to promote change.

关键词： illustration education family

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Effects of Recreational Soccer on Health outcomes:A Narrative Review

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Journal of Science in Sport and Exercise 2019年第2期1卷 142-150页

作者： Israel Castillo-bellot Jose Mora-Gonzalez Luis Fradua francis.o b.ortega Luis Gracia-Marco Department of Physical Education and Sport Faculty of Sport SciencesUniversity of GranadaGranadaSpain PRomoting FITness and Health Through Physical Activity(PRoFITH)Research Group Department of Physical Education and SportFaculty of Sport SciencesUniversity of GranadaGranadaSpain

Soccer is a very popular team sport that involves a variety of physical actions,such as sprints,accelerations,sudden decelera-tions,and jumps,among *** has placed recreational soccer in a good position as a strategy to increase physical activity levels and promote health across the *** this regard,recreational(non-competitive)soccer promotes social interaction and has the potential to increase long-term adherence to physical activity,even in those without prior experience in this *** this narrative review,we address the effects of recreational soccer on various health outcomes across the lifespan(i.e.,from childhood to the elderly years)in both *** addition,the beneficial effects of recreational soccer for people with prevalent pathologies,such as hypertension,type II diabetes mellitus,and cancer,are discussed.

关键词： Physical fitness Physical activity Hypertension Diabetes Cancer Football

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Chemical Determination of base Status Metals in Soil Sediments and Particulate Matter in Wellington Industrial Estate Location

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open Journal of Applied Sciences 2024年第5期14卷 1338-1352页

作者： Richard Tamba Simbo Jerry Yeke Paye Fayia francis Nyuma Department of Chemistry School of Basic Sciences Njala University Freetown Sierra Leone Department of Science and Mathematics College of Arts and Sciences William V.S. Tubman University Harper Liberia Department of Fisheries and Science Thomas J.R Faulkner College of Science and Technology University of Liberia Monrovia Liberia

This research study explored the levels of base status metals in soil sediments and particulate matter in the wellington industrial estate location;the main objectives were to: 1) determine sodium and potassium, 2) determine calcium and magnesium, 3) determine available iron. The following hypotheses were put forward;Hb>0b>b>ab>: there is no significant difference in the concentration levels between Ca and Mg in the study area, Hb>1b>b>ab>: there is significant difference in the concentration levels between Ca and Mg in the study area, Hb>0b>b>bb>: there is no significant difference in the concentration levels between Na and K in the study area, Hb>1b>b>bb>: there is significant difference in the concentration levels between Na and K in the study area. Six locations were used to collect samples with the aid of scoop and gravel free auger (at varying depths of 0 - 5 cm and 5 - 10 cm) which are Wellington Industrial Estate Area 1 (WIEL 1), (WIEL 2), (WIEL 3), (WIEL 4), (WIEL 5), (WIEL 6);the samples were given laboratory treatment. Flame photometer, EDTA, and Spectrophotometer were used in the determinations of sodium and potassium, calcium and magnesium, and available iron respectively. The results indicated that levels of potassium were in medium range (moderately high);sodium levels were generally low when compared to brook’s classification table. Levels of calcium were generally low and those of magnesium were moderate based on brook’s table of classification. Levels of available iron which fall within the range of Quijano-Guerta (2003) were high;this implies such levels can lead to toxicity. In all locations, there was decrease in the levels of each metal in the samples with (5 - 10 cm) depth.

关键词： Deposition Environment Particulate Sediment Toxicity

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The effects of a 20-week exercise program on blood-circulating biomarkers related to brain health in overweight or obese children:The Activebrains project

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Journal of Sport and Health Science 2023年第2期12卷 175-185页

作者： María Rodriguez-Ayllon Abel Plaza-Florido Andrea Mendez-Gutierrez Signe Altmäe Patricio Solis-Urra Concepción M.Aguilera Andrés Catena francis.o b.ortega Irene Esteban-Cornejo PRoFITH“PRomoting FITness and Health through physical activity”research group Sport and Health University Research Institute(iMUDS)Department of Physical and Sports EducationFaculty of Sport SciencesUniversity of GranadaGranada 18071Spain Department of Epidemiology Erasmus University Medical CenterRotterdam 3015 GDthe Netherlands Department of biochemistry and Molecular biology Ⅱ School of PharmacyUniversity of GranadaGranada 18071Spain Department of biochemistry and Molecular biology Faculty of SciencesUniversity of GranadaGranada 18071Spain Nuclear Medicine Services Virgen de Las Nieves University HospitalGranada 18014Spain Faculty of Education and Social Sciences Universidad Andres BelloViña del Mar 2531015Chile Department of Experimental Psychology School of PsychologyUniversity of GranadaGranada 18011Spain Faculty of Sport and Health Sciences University of JyväskyläJyväskylä40014Finland Department of bioscience and Nutrition Karolinska InstitutetHuddingeSE 14157Sweden

background:Emerging research supports the idea that exercise positively affects ***,the mechanisms linking exercise with brain health are largely *** aimed to investigate the effect of exercise on(a)blood biomarkers selected based on previous evidence(brainderived neurotrophic factor,β-hydroxybutyrate(bHb),cathepsin b(CTSb),kynurenine,fibroblast growth factor 21(FGF21),soluble vascular cell adhesion molecule-1(sVCAM-1));and(b)a panel of 92 neurology-related proteins(discovery analysis).We also investigated whether changes in these biomarkers mediate the effects of exercise on brain health(hippocampal structure and function,cognitive performance,and mental health).Methods:We randomized 81 overweight/obese children(10.1±1.1 years,41%girls)into 2 groups:either 20 weeks of aerobic plus resistance exercise or *** biomarkers were assessed using enzyme-linked immunosorbent assay(ELISA)for kynurenine,FGF21,and CTSb;colorimetry forβ-hydroxybutyrate;and XMap for brain-derived neurotrophic factor and soluble vascular cell adhesion ***92 neurology-related proteins were analyzed by an antibody-based proteomic ***:our intervention had no significant effect on candidate biomarkers(all p>0.05).In the discovery analysis,a reduction in circulating macrophage scavenger receptor type-I was observed(standardized differences between groups=-0.3,p=0.001).This effect was validated using ELISA methods(standardized difference=-0.3,p=0.01).None of the biomarkers mediated the effects of exercise on brain ***:our study does not support a chronic effect of exercise on candidate *** observed that while chronic exercise reduced the levels of macrophage scavenger receptor type-Ⅰ,it did not mediate the effects of exercise on brain *** studies should explore the implications of this novel biomarker for overall health.

关键词： brain development Childhood MRI Physical activity Proteomic

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Impact on Soil organic C and Total Soil N from Cool- and Warm-Season Legumes Used in a Green Manure-Forage Cropping System

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Agricultural Sciences 2024年第3期15卷 333-357页

作者： Clark b. Neely francis M. Rouquette Jr. Cristine L.S. Morgan Frank M. Hons William L. Rooney Gerald R. Smith Department of Soil and Crop Science Washington State University Pullman WA USA Texas A&M AgriLife Research Overton TX USA Chief Scientific officer Soil Health Institute Morrisville NC USA Department of Soil and Crop Science Texas A&M University College Station TX USA

Annual forage legumes are important components of livestock production systems in East Texas and the southeastern US. Forage legumes contribute nitrogen (N) to cropping systems through biological N fixation, and their seasonal biomass production can be managed to complement forage grasses. our research objectives were to evaluate both warm- and cool-season annual forage legumes as green manure for biomass, N content, ability to enhance soil organic carbon (SoC) and soil N, and impact on post season forage grass crops. Nine warm-season forage legumes (WSL) were spring planted and incorporated as green manure in the fall. Forage rye (Secale cereale L.) was planted following the incorporation of WSL treatments. Eight cool-season forage legumes (CSL) were fall planted in previously fallow plots and incorporated as green manure in late spring. Sorghum-sudangrass (Sorghum bicolor x Sorghum bicolor var. sudanense) was planted over all treatments in early summer after forage rye harvest and incorporation of CSL treatments. Sorghum-sudangrass was harvested in June, August and September, and treatments were evaluated for dry matter and N concentration. Soil cores were taken from each plot, split into depths of 0 to 15, 15 to 30 and 30 to 60 cm, and soil C and N were measured using combustion analysis. Nylon mesh bags containing plant samples were buried at 15 cm and used to evaluate decomposition rate of above ground legume biomass, including change in C and N concentrations. Mungbean (Vigna radiata L. [Wilczek]) had the highest shoot biomass yield (6.24 t DM ha-1) and contributed the most total N (167 kg∙ha-1) and total C (3043 kg∙ha-1) of the WSL tested. Decomposition rate of WSL biomass was rapid in the first 10 weeks and very slow afterward. Winter pea (Pisum sativum L. spp. sativum), arrow leaf clover (Trifolium vesiculosum Savi.), and crimson clover (Trifolium incarnatum L.) were the most productive CSL in this trial. Austrian winter pea

关键词： Annual Legumes Soil N Soil organic C Green Manure Deer browse Forage Cropping Systems

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Legume Green Manure and Intercropping for High biomass Sorghum Production

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Agricultural Sciences 2024年第6期15卷 605-621页

作者： Clark b. Neely francis M. Rouquette Jr. Cristine L. S. Morgan Frank M. Hons William L. Rooney Gerald R. Smith Department of Soil and Crop Science Washington State University Pullman WA USA Texas A&M AgriLife Research Overton TX USA Soil Health Institute Morrisville NC USA Department of Soil and Crop Science Texas A&M University College Station TX USA

before the advent of cheap, synthetic fertilizers, legumes were commonly used as green manure crops for their ability to fix atmospheric nitrogen (N). A three-year study at overton, TX examined legume integration into high-biomass sorghum (Sorghum bicolor L.) production systems on a Lilbert loamy fine sand recently cultivated after a fertilized bermudagrass [Cynodon dactylon (L.) Pers.] pasture. In this split-split plot design, ‘Dixie’ crimson clover (Trifolium incarnatum L.) and ‘Iron and Clay’ cowpea (Vigna unguiculata L.) were integrated into a high-biomass sorghum production system to evaluate impacts on N concentration, C concentration, and yield of high-biomass sorghum and their impacts on soil total N and soil organic carbon (SoC). Main plots were split into crimson clover green manure (CLGM) and winter fallow (FALL) followed by three sub-plots split into warm-season crop rotations: cowpea green manure (CPGM), cowpea-sorghum intercrop (CPSR), and sorghum monocrop (SoRG). Three N fertilizer treatments (0, 45, 90 kg N∙ha−1) were randomized and applied as sub-sub plots. The CLGM increased (P sorghum biomass yield (16.5 t DM∙ha−1) 28% in year three but had no effect in the first two years. The CPSR treatment reduced sorghum yield up to 62% compared to SoRG;whereas CPGM increased sorghum yield 56% and 18% the two years following cowpea incorporation. Rate of N fertilizer had no effect on sorghum biomass yield. Decrease in SoC and soil N over time indicated mineralization of organic N and may explain why no N fertilizer response was observed in sorghum biomass yield. Cowpea showed strong potential as a green manure crop but proved to be too competitive for successful intercropping in high-biomass sorghum production systems.

关键词： High-biomass Sorghum Legumes Green Manure Intercrop Cowpea Crimson Clover Soil organic Carbon Soil Nitrogen

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Mediation role of cardiorespiratory fitness on the association between fatness and cardiometabolic risk in European adolescents: The HELENA study

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Journal of Sport and Health Science 2021年第3期10卷 360-367页

作者： Carlos Cristi-Montero Javier Courel-Ibanez francis.o b.ortega Jose Castro-Pinero Alba Santaliestra-Pasias Angela Polito Jeremy Vanhelst Ascension Marcos Luis M.Moreno Jonatan R.Ruiz IRyS Group Physical Education SchoolPontificia Universidad Catolicade ValparaisoValparaisso 2530388Chile Department of Physical Activity and Sport Faculty of Sport SciencesUniversity of MurciaMurcia 30071Spain PRomoting FITness and Health through Physical Activity Research Group(PRoFITH) Department of Physical Education and SportsFaculty of Sport SciencesUniversity of GranadaGranada 18001Spain Department of Physical Education Faculty of Education SciencesUniversity of CadizPuerto Real 11003Spain Department of Health and Human Performance School of Health SciencesUniversity of ZaragozaZaragoza 50001Spain Growth ExerciseNutrition and Development(GENUD)Research GroupZaragoza 50001Spain National Institute for Food and Nutrition Research Rome 80070Italy Lille Inflammation Research International Center University of LilleLille 59000France Immunonutrition Research Group Department Metabolism and NutritionInstitute of Food Science and Technology and Nutrition(ICTAN)Spanish National Research Council(CSIC)Madrid E-28040 Spain

Purpose:This study was aimed to analyze the mediation role of cardiorespiratory fitness(CRF)on the association between fatness and cardiometabolic risk scores(CMRs)in European ***:A cross-sectional study was conducted in adolescents(n=525;46%boys;14.1±1.1 years old,mean ±SD)from 10 European cities involved in the Healthy Lifestyle in Europe by Nutrition in Adolescence *** was measured by means of the shuttle run test,while fatness measures included body mass index(bMI),waist to height ratio,and fat mass index estimated from skinfold thicknesses.A clustered CMRs was computed by summing the standardized values of homeostasis model assessment,systolic blood pressure,triglycerides,total cholesterol/highdensity lipoprotein cholesterol ratio,and ***:Linear regression models indicated that CRF acted as an important and partial mediator in the association between fatness and CMRs in 1217-year-old adolescents(for bMI:coefficients of the indirect role b=0.058(95%confidence interval(95%CI):0.023-0.101),Sobel test z=3.11(10.0%mediation);for waist to height ratio:b=4.279(95%CI:2.242-7.059),z=3.86(11.5%mediation);and for fat mass index:b=0.060(95%CI:0.020-0.106),z=2.85(9.4%mediation);all ponclusion:In adolescents,the association between fatness and CMRs could be partially decreased with improvements to fitness levels;therefore,CRF contribution both in the clinical field and public health could be important to consider and promote in adolescents independently of their fatness levels.

关键词： Cardiovascular disease Children Fat mass Fitness Health Physical activity

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