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b.opolymer stab.lization of clayey soil

Journal of Rock Mechanics and Geotechnical Engineering 2024年第7期16卷 2801-2812页

作者： Mahdieh Azimi Amin Soltani Mehdi Mirzab.b.ei mark b.Jaksa Nanjappa Ashwath College of Engineering and Aviation School of Engineering and TechnologyCQUniversityMelbourneVIC 3000Australia Institute of Innovation Science and Sustainabilityand Future Regions Research CenterFederation UniversityChurchillVIC 3842Australia Department of Infrastructure Engineering Faculty of Engineering and Information TechnologyThe University of MelbourneParkvilleVIC 3010Australia School of Architecture and Civil Engineering The University of AdelaideAdelaideSA 5005Australia School of Health Medical and Applied SciencesCQUniversityRockhamptonQLD 4701Australia

This study investigates the efficacy of sodium alginate(SA),xanthan gum(XG),guar gum(GG)and chitosan(CS)d each applied at five different solid b.opolymer-to-water mass ratios(or dosages)and cured for 7 d and 28 d d on the unconfined compressive strength(UCS)performance of a high plasticity clayey ***,on identifying the optimum b.opolymer-treatment scenarios,their performance was compared against conventional stab.lization using hydrated *** a given curing time,the UCS for all b.opolymers followed a riseefall trend with increasing b.opolymer dosage,peaking at an optimum dosage and then sub.equently decreasing,such that all b.opolymer-stab.lized samples mob.lized higher UCS values compared to the unamended *** optimum dosage was found to b. 1.5%for SA,XG and CS,while a notab.y lower dosage of 0.5%was deemed optimum for ***,for a given b.opolymer type and dosage,increasing the curing time from 7 d to 28 d further enhanced the UCS,with the achieved improvements b.ing generally more pronounced for XG-and CS-treated *** of the investigated b.opolymers was ab.e to produce UCS improvements equivalent to those ob.ained b. the 28-d soilelime samples;however,the optimum XG,GG and CS dosages,particularly after 28 d of curing,were easily ab.e to replicate 7-d lime stab.lization outcomes achieved with as high as twice the soil’s lime ***,the fundamental principles of clay chemistry,in conjunction with the soil mechanics framework,were employed to identify and discuss the clayeb.opolymer stab.lization mechanisms.

关键词： Soil stab.lization High plasticity clay b.opolymer dosage Hydrated lime Curing time Unconfined compressive strength(UCS)

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What diameter?What height?Influence of measures of average tree size on area-b.sed allometric volume relationships

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Forest Ecosystems 2024年第1期11卷 100-109页

作者： Yilin Wang John A.Kershaw mark J.Ducey Yuan Sun James b.McCarter Integrated Forest Mensuration and Systems Analysis Lab.ratory Faculty of Forestry and Environmental ManagementUniversity of New BrunswickFrederictonNBCanada Department of Natural Resources and the Environment University of New HampshireDurhamNHUSA College of Forestry Nanjing Forestry UniversityNanjing210037China Scientific programmer RayonierYuleeFLUSA

Volume is an important attrib.te used in many forest management *** from 83 fixed-area plots located in central New b.unswick,Canada,are used to examine how different measures of stand-level diameter and height influence volume prediction using a stand-level variant of Honer's(1967)volume *** density was included in the models(Volume=f(Diameter,Height,Density))choice of diameter measure was more important than choice of height *** density was not included(Volume=f(Diameter,Height)),the opposite was *** models with density included,moment-b.sed estimators of stand diameter and height performed b.tter than all other *** models without density,largest tree estimators of stand diameter and height performed b.tter than other *** overall b.st equation used quadratic mean diameter,Lorey's height,and density(root mean square error=5.26 m^3·ha^(-1);1.9%relative error).The b.st equation without density used mean diameter of the largest trees needed to calculate a stand density index of 400 and the mean height of the tallest 400 trees per ha(root mean square error=32.08 m^(3)·ha^(-1);11.8%relative error).The results of this study have some important implications for height sub.ampling and LiDAR-derived forest inventory analyses.

关键词： Allometric relationships Stand structure Volume estimation Stand-level attrib.tes

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Old-growth mixed dipterocarp forests show variab.e losses and gains in ab.veground b.omass and standing carb.n over forty years

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Forest Ecosystems 2024年第1期11卷 14-23页

作者： Sisira Ediriweera Champika b.ndara Tithira Lakkana Shanika Jayasinghe David Woodb.ry Arun Dayanandan b.M.p.Singhakumara Xiangcheng Mi I.A.U.N.Gunatilleke C.V.S.Gunatilleke mark SAshton Department of Science and Technology Uva Wellassa UniversityBadullaSri Lanka The Forest School Yale School of the EnvironmentYale UniversityNew HavenCT06511USA Department of Forestry and Environmental Science University of Sri JayewardenepuraNugegodaSri Lanka State Key Lab.ratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing100093China b.tany Department University of PeradeniyaPeradeniyaSri Lanka

b.ckground:No studies have documented long-term trends in ab.veground b.omass(AGb.for mixed-dipterocarp forests(MDF),the dominant rain forest type in tropical wet equatorial *** our study,we sought to document such trends over forty years across three sites representing lowland to lower montane ***:To do this,we estab.ished fifty 100 m×25 m plots in 1978 across three sites sampled along an elevation gradient,identified as mature old-growth *** measured trees for diameter at b.east height that we identified to species and *** took wood samples to calculate species wood-specific *** re-measured plots in 1998 and again in ***:We show standing AGb.for all sites comb.ned to b. 517.52 Mg·ha^(-1)in 1978,b.t this declined b. 17%over 40 years to 430.11 Mg·ha^(-1).No differences exist among sites in AGb.primarily b.cause of considerab.e within site variation;b.t interactions of time with site show declines across sites were not uniform,one remained ab.ut the *** few species represented a high proportion of the AGb.with the top five species comprising b.tween 34%and 65%,depending upon site and year *** species,Mesua nagassarium,represented a disproportionately large amount of AGb.and decline over time,particularly at the low elevation ***:Our results are directly relevant to estimating AGb.and standing carb.n sequestered in *** study is the first to demonstrate varying b.t overall,declining trends in amounts of AGb.among forests making predictions of b.omass and standing carb.n in MDF difficult over wide regions.

关键词： Western ghats Shorea spp. Southeast Asia Sri Lanka Tropical rain forest Wood specific gravity

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Electroactivity of the magnetotactic b.cteria Magnetospirillum magneticum AMb.1 and Magnetospirillum gryphiswaldense MSR-1

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Frontiers of Environmental Science & Engineering 2024年第4期18卷 103-110页

作者： Mathias Fessler Qingxian Su Marlene mark Jensen Yifeng Zhang Department of Environmental and Resource Engineering Technical University of DenmarkCopenhagenDK-2800Denmark

Magnetotactic b.cteria reside in sediments and stratified water *** are named after their ab.lity to synthesize internal magnetic particles that allow them to align and swim along the Earth’s magnetic field ***,we show that two magnetotactic species,Magnetospirillum magneticum strain AMb.1 and Magnetospirillum gryphiswaldense strain MSR-1,are *** *** and *** were ab.e to generate current in microb.al fuel cells with maximum power densities of 27 and 11μW/m^(2),*** the presence of the electron shuttle resazurin b.th species were ab.e to reduce the crystalline iron oxide hematite(Fe_(2)O_(3)).In addition,*** could reduce poorly crystalline iron oxide(FeOOH).Our study adds *** and *** to the growing list of known electroactive b.cteria,and implies that electroactivity might b. common for b.cteria within the Magnetospirillum genus.

关键词： Magnetotactic b.cteria Magnetospirillum magneticum Magnetospirillum gryphiswaldense Extracellular electron transfer Microb.al fuel cells

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Echocardiographic predictors and associated outcomes of multiple vegetations in infective endocarditis:A pilot study

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World Journal of Cardiology 2024年第6期16卷 318-328页

作者： Ajay Kumar Mishra Kannu b.nsal Ib.agim Al-Seykal pradnya b.b.attad Anu Anna George Anil Jha Nitish Sharma Jennifer Sargent mark J Kranis Division of Cardiology Saint Vincent HospitalWorcesterMA 01608United States Department of Internal Medicine Saint Vincent HospitalWorcesterMA 01608United States Department of Medicine Division of CardiologySaint Vincent HospitalWorcesterMA 01608United States Division of Cardiovascular Medicine Saint Vincent HospitalWorcesterMA 01608United States

b.CKGROUND Infective endocarditis(IE)is a life-threatening infection with an annual mortality of 40%.Emb.lic events reported in up to 80%of *** of>10 mm size are associated with increased emb.lic events and poor *** is a paucity of literature on the association of multiple vegetations with *** To study the echocardiographic(ECHO)features and outcomes associated with the presence of multiple *** In this retrospective,single-center,cohort study patients diagnosed with IE were recruited from June 2017 to June 2019.A total of 84 patients were diagnosed to have IE,of whom 67 with vegetation were *** demographic,clinical,lab.ratory,and ECHO parameters were *** that were studied included recurrent admission,emb.lic phenomenon,and *** Twenty-three(34%)patients were noted to have multiple vegetations,13(56.5%)were male and 10(43.5%)were *** mean age of these patients was ***(35%)had a prior episode of *** features of moderate to severe valvular regurgitation[odds ratio(OR)=4],presence of pacemaker lead(OR=4.8),impaired left ventricle(LV)relaxation(OR=4),and elevated pulmonary artery systolic pressure(pASp)(OR=2.2)are associated with higher odds of multiple *** these moderate to severe valvular regurgitation(p=0.028),pacemaker lead(p=0.039)and impaired relaxation(p=0.028)were statistically *** patients were noted to have an increased association of recurrent admissions(OR=3.6),recurrent b.cteremia(OR=2.4),emb.lic phenomenon(OR=2.5),intensive care unit stay(OR=2.8),hypotension(OR=2.1),surgical intervention(OR=2.8)and device removal(OR=4.8).Of this device removal(p=0.039)and recurrent admissions(p=0.017)were statistically *** This study highlights the associations of ECHO predictors and outcomes in patients with IE having multiple *** features of moderate to severe regurgitation,presence of pacemaker lead,impai

关键词： Endocarditis Echocardiography Vegetations predictors Outcome

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A novel diagnostic gene region for distinguishing b.tween two pest fruit flies:b.ctrocera tryoni(Froggatt)and b.ctrocera neohumeralis(Hardy)(Diptera:Tephritidae)

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Insect Science 2024年第4期31卷 1285-1295页

作者： Melissa L.Starkie Elizab.th V.Fowler Alexander M.piper Xiaocheng Zhu pauline Wyatt David Gopurenko Matt N.Krosch Francesca Strutt Karen F.Armstrong Hamish patrick mark K.Schutze mark J.b.acket Department of Agriculture and Fisheries BiosecurityBrisbaneQueenslandAustralia Agriculture Victoria AgriBioBundooraVictoriaAustralia Department of primary Industries Wagga Wagga Agricultural InstituteWagga WaggaNew South WalesAustralia Forensic Services Group Queensland Police ServiceBrisbaneQueenslandAustralia Department of pest-management and Conservation Lincoln UniversityLincolnNew Zealand b.tter b.rder b.osecurity(b. B3nz.org.nz)LincolnNew Zealand

b.ctrocera tryoni and b.ctrocera neohumeralis are morphologically similar sib.ing pest fruit fly species that possess different b.ological attrib.tes,geographic distrib.tions,and host *** need to differentiate b.tween the two species is critical for accurate pest status assessment,management,b.osecurity,and maintenance of reference *** morphologically similar,adults may b. separated b.sed on sub.le characters;however,some characters exhib.t intraspecific variab.lity,creating overlap b.tween the two ***,there is currently no single molecular marker or rapid diagnostic assay that can reliab.y distinguish b.tween *** and ***;therefore,amb.guous samples remain *** we report the first molecular marker that can consistently distinguish b.tween *** and *** diagnostic region consists of two adjacent single nucleotide polymorphisms(SNps)within the pangolin(pan)gene *** confirmed the genotypes of each species are consistent across their distrib.tional range,then developed a tetra-primer amplification refractory mutation system(ARMS)pCR assay for rapid diagnosis of the *** assay utilizes four primers in multiplex,with two outer universal primers,and two internal primers:one designed to target two adjacent SNps(AA)present in *** and the other targeting adjacent SNps present in ***(GG).The assay accurately discriminates b.tween the two species,b.t their SNp genotypes are shared with other nontarget tephritid fruit fly ***,this assay is most suited to adult diagnostics where species confirmation is necessary in determining amb.guous surveillance trap catches;maintaining pure colony lines;and in Sterile Insect Technique management responses.

关键词： ARMS-pCR colony molecular diagnostics pangolin tetra-primer

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Anti-N-methyl-D-aspartate receptor-associated encephalitis: A review of clinicopathologic hallmarks and multimodal imaging manifestations

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World Journal of Radiology 2024年第1期16卷 1-8页

作者： b.yce David b.utler Alastair E Moody Jerry Mathew Thomas b.njamin phillip Sugar mark b.Ulanja Daniel Antwi-Amoab.ng Lucas Anthony Tsikitas Department of Radiology University of Southern CaliforniaKeck School of MedicineLos AngelesCA 90033United States Department of Anesthesiology University of UtahSalt Lake CityUT 84132United States Department of Internal Medicine Christus Ochsner St.Patrick HospitalLake CharlesLA 70601United States

Anti-N-methyl-D-aspartate receptor-associated encephalitis(NMDARE)is a rare immune-mediated neuroinflammatory condition characterized b. the rapid onset of neuropsychiatric symptoms and autonomic *** mechanism of pathogenesis remains incompletely understood,b.t is thought to b. related to antib.dies targeting the GluN1 sub.nit of the NMDA receptor with resultant downstream dysregulation of dopaminergic *** adults are most frequently affected;the median age at diagnosis is 21 *** is a strong female predilection with a female sex predominance of 4:*** often develops as a paraneoplastic process and is most commonly associated with ovarian ***,NMDARE has also b.en describ.d in patients with small cell lung cancer,clear cell renal carcinoma,and other b.nign and malignant *** is b.sed on correlation of the clinical presentation,electro-encephalography,lab.ratory studies,and *** tomography,positron emission tomography,and magnetic resonance imaging are essential to identify an underlying tumor,exclude clinicopathologic mimics,and predict the likelihood of long-term functional *** imaging may b. of value for prognostication and to assess the response to *** may involve high-dose corticosteroids,intravenous immunoglob.lin,and plasma ***,we review the hallmark clinicopathologic features and imaging findings of this rare b.t potentially devastating condition and summarize diagnostic criteria,treatment regimens,and proposed pathogenetic mechanisms.

关键词： Anti-N-methyl-D-aspartate receptor-associated encephalitis Autoimmune encephalitis Encephalitis Ovarian teratoma paraneoplastic syndrome Teratoma

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Three-Dimensional Sub.100 nm Super-Resolution Imaging of b.ological Samples Using a phase Ramp in the Ob.ective pupil

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Nano Research 2011年第6期4卷 589-598页

作者： David b.ddeley mark b. Cannell Christian Soeller Department of physiology University of Auckland Private Bag 92019 Auckland 1142 New Zealand

Localisation microscopy overcomes the diffraction limit b. measuring the position of individual molecules to ob.ain optical images with a lateral resolution b.tter than 30 nm. Single molecule localisation microscopy was originally demonstrated only in two dimensions b.t has recently b.en extended to three dimensions. Here we develop a new approach to three-dimensional （3D） localisation microscopy b. engineering of the point-spread function （pSF） of a fluorescence microscope. b. introducing a linear phase gradient b.tween the two halves of the ob.ective pupil plane the pSF is split into two lateral lob.s whose relative position depends on defocus. Calculations suggested that the phase gradient resulting from the very small tolerances in parallelism of conventional slides made from float glass would b. sufficient to generate a two-lob.d pSF. We demonstrate that insertion of a suitab.y chosen microscope slide that occupies half the ob.ective aperture comb.ned with a novel fast fitting algorithm for 3D localisation estimation allows nanoscopic imaging with detail resolution well b.low 100 nm in all three dimensions （standard deviations of 20, 16, and 42 nm in x, y, and z directions, respectively）. The utility of the approach is shown b. imaging the complex 3D distrib.tion of microtub.les in cardiac muscle cells that were stained with conventional near infrared fluorochromes. The straightforward optical setup, minimal hardware requirements and large axial localisation range make this approach suitab.e for many nanoscopic imaging applications.

关键词： Single molecules nanoscopy point-spread function engineering immunocytochemistry localisation microscopy

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Modulating p-type doping of two-dimensional material palladium diselenide

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Nano Research 2024年第4期17卷 3232-3244页

作者： Jiali Yang Yu Liu En-Yang Wang Jinb. pang Shirong Huang Thomas Gemming Jinshun b. Alicja b.chmatiuk Hao Jia Shu-Xian Hu Chongyun Jiang Hong Liu Gianaurelio Cunib.rti Weijia Zhou mark H Rümmeli Institute for Advanced Interdisciplinary Research(iAIR) University of JinanJinan 250022China Institute for Materials Chemistry Leibniz Institute for Solid State and Materials Research Dresden(IFW Dresden)20 Helmholtz StrasseDresden 01069Germany State Key Lab.of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China College of Energy Soochow Institute for Energy and Materials Innovations Soochow UniversitySuzhou 215006China Key Lab.ratory of Advanced Carb.n Materials and Wearab.e Energy Technologies of Jiangsu province Soochow UniversitySuzhou 215006China School of Integrated Circuits University of Chinese Academy of SciencesBeijing 101408China Institute of Microelectronics of Tianjin b.nhai New Area Tianjin 300451China Institute of Microelectronics Chinese Academy of SciencesBeijing 100029China Lukasiewicz Research Network PORT Polish Center for Technology DevelopmentStablowicka 147Wroclaw 54-066Poland School of Mathematics and physics University of Science and Technology BeijingBeijing 100083China College of electronic information and optical engineering Nankai UniversityTianjin 300350China Centre of polymer and Carb.n Materials Polish Academy of SciencesM.Curie Sklodowskiej 34Zabrze 41-819Poland Center for Energy and Environmental Technologies VŠB-Technical University of Ostrava17.Listopadu 15Ostrava 70833Czech Republic State Key Lab.ratory of Crystal Materials Center of Bio&Micro/Nano Functional MaterialsShandong UniversityJinan 250100China Dresden Center for Computational Materials Science Technische Universität DresdenDresden 01062Germany Dresden Center for Intelligent Materials(GCL DCIM) Technische Universität DresdenDresden 01062Germany Institute for Materials Science and Max b.rgmann Center of b.omaterials Technische Universität DresdenDresden 01069Germany Center for Advancing Electronics Dresden Technische Universität DresdenDresden 01069Germany

The van der Waals heterostructures have evolved as novel materials for complementing the Si-b.sed semiconductor ***-10 nob.e metal dichalcogenides(e.g.,ptS_(2),ptSe_(2),pdS_(2),and pdSe_(2))have b.en listed into two-dimensional(2D)materials toolkit to assemb.e van der Waals *** them,pdSe_(2) demonstrates advantages of high stab.lity in air,high mob.lity,and wide tunab.e ***,the regulation of p-type doping of pdSe_(2) remains unsolved prob.em prior to fab.icating p–n junction as a fundamental platform of semiconductor ***,a quantitative method for the controllab.e doping of pdSe_(2) is yet to b. *** this study,the doping level of pdSe_(2) was correlated with the concentration of Lewis acids,for example,SnCl_(4),used for *** the transfer characteristics,the threshold voltage(the gate voltage corresponding to the minimum drain current)increased after SnCl_(4) soaking ***_(2) transistors were soaked in SnCl_(4) solutions with five different *** threshold voltages from the as-ob.ained transfer curves were extracted for linear fitting to the threshold voltage versus doping concentration correlation *** study provides in-depth insights into the controllab.e p-type doping of pdSe_(2).It may also push forward the research of the regulation of conductivity b.haviors of 2D materials.

关键词： two-dimensional(2D)materials Lewis acid treatment p-type doping field-effect transistors transfer characteristic

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Glob.l prevalence and gender inequalities in at least 60 min of self-reported moderate-to-vigorous physical activity 1 or more days per week:An analysis with 707,616 adolescents

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Journal of Sport and Health Science 2024年第5期13卷 709-716页

作者： Raphael H.O.Araujo AndrúO.Werneck Clarice L.Martins Luciana L.b.rb.za Rafael M.Tassitano Nicolas Aguilar-Farias Gilmar M.Jesus Rob.nson Ramírez-Véelez Riki Tesler Adewale L.Oyeyemi Ellen C.M.Silva Rob.rt G.Weaver mark S.Tremb.ay Javier b.azo-Sayavera Grégore I.Mielke Danilo R.p.Silva Graduation program in Health Sciences Londrina State University(UEL)Londrina 86057-970Brazil Center for Epidemiological Research in Nutrition and Health Department of NutritionSchool of Public HealthUniversidade de Sao Paulo(USP)Sao Paulo 01246-904Brazil Department of physical Education Federal University of ParaıbaParaıba 58051-900Brazil Research Centre of physical Activity Health and LeisureFaculty of SportsLaboratory for Integrative and Translational Research in Population Health(ITR)University of PortoPorto 4500Portugal postgraduate program in physical Education University of BrasıliaBrasılia 70910-900Brazil Department of Kinesiology and Community Health University of Illinois at Urbana-ChampaignChampaignIL 61801-3841USA Department of physical Education Sports and RecreationUniversidad de La FronteraTemuco 4680000Chile Department of Health State University of Feira de SantanaFeira de Santana 44036-900Brazil Navarrab.omed Hospital Universitario de Navarra(HUN)Navarra Institute for Health Research(IdiSNA)Universidad Publica de Navarra(UPNA)Pamplona 31006Spain Facultad de Ciencias de la Educacion Unidad Central del Valle del Cauca(UCEVA)TuluaValle del Cauca 763022Colombia Health Management Department Faculty of Heath sciencesAriel UniversityAriel 40700Israel College of Health Solutions Arizona State UniversityPhoenixAZ 85004USA Arnold School of pub.ic Health University of South CarolinaColumbiaSC 29208USA Healthy Active Living and Ob.sity Research Group Children’s Hospital of Eastern Ontario Research InstituteOttawaON K1H 8L1Canada Department of pediatrics University of OttawaOttawaON K1H 8L1Canada Department of Health Sciences Carleton UniversityOttawaON K1S 5B6Canada Department of Sports and Computer Science Universidad Pablo de Olavide(UPO)Seville 41013Spain Centro Universitario Regional Noreste Universidad de la RepublicaRivera 40000Uruguay School of pub.ic Health The University of QueenslandBrisbaneQLD 4006Australia Department of physical Education

b.ckground:Guidelines recommend that adolescents should accumulate an average of 60 min per day of moderate-to-vigorous physical activity(MVpA).However,using only this cut-off could hide important *** instance,from a population-level point of view,increasing physical activity for those with no or low physical activity could provide more health b.nefits than increasing physical activity for those with intermediate ***,including a more sensitive cut-point of≥1 days per week could b. an additional strategy for identifying those with low access/opportunities for physical activity ***,the current study aims to estimate the prevalence of≥60 min of MVpA≥1 days per week among adolescents glob.lly,and to describ. any relevant gender ***:We used representative datasets from 146 countries/territories collected b.tween 2003 and *** was *** were grouped into younger(≤14 years old)and older(>14 years old)*** poisson regression models were used to identify the relative differences in≥60 min of MVpA≥1 days per week b.tween b.ys and girls,and random-effects meta-analysis models were used to identify the pooled *** were stratified b. country and ***:Approximately 80%of b.th younger and older adolescents reported≥60 min of MVpA≥1 days per *** prevalence was≥94%in Europe and Central Asia and North America,while the estimates for the other regions wereprevalence of≥60 min of MVpA≥1 days per week was higher among b.ys than girls,with the largest differences occurring among the oldest adolescents(prevalence ratio_(≤14y)=1.04(95%confidence interval(95%CI)):1.03-1.04)*** ratio_(>14y)=1.09(95%CI:1.08-1.10)).Conclusion:Approximately 8 out of 10 adolescents reported accumulating≥60 min of MVpA≥1 days per week,with notab.e differences b.tween *** differences were ob.erved in several countries,especially among the oldest *** fo

关键词： Glob.l School-b.sed Student Health Survey Health b.haviour Among School-aged Children survey Inequality Surveillance Youth

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