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Decreased bioavailability of aminomethylphosphonic acid(AMPA)in genetically modified corn with activated carbon or calcium montmorillonite clay inclusion in soil

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journal of Environmental Sciences 2021年第2期33卷 131-143页

作者： Sara E.Hearon Meichen Wang Thomas j.McDonald Timothy D.Phillips Veterinary Integrative Biosciences Department College of Veterinary Medicine and Biomedical Sciences Texas A&M Uniuersity College StationTx 77845USA Department of Environmental and Occupational Health School of Public Health Texas A&M UniversityCollege Station400 Bizzell St College StationTX 77843USA

The widespread use of pesticides has resulted in detectable residues throughout the environment,sometimes at concentrations well above regulatory ***,the development of safe,effective,field-practical,and economically feasible strategies to mitigate the effects of pesticides is *** is an organophosphorus herbicide that is degraded to aminomethylphosphonic acid(AMPA),a toxic and persistent metabolite that can accumulate in soil and sediment and translocate to *** this study,we investigated the binding efficacy of activated carbon(AC)and calcium montmorillonite(CM)clay to decrease AMPA bioavailability from soil and AMPA translocation to *** isotherms and thermodynamic studies on AC and CM were conducted and showed tight binding(enthalpy values>-20 k j/mol)for AMPA with high capacities(0.25 mol/kg and 0.38 mol/kg,respectively),based on derivations from the Langmuir model.A hydra assay was utilized to indicate toxicity of AMPA and the inclusion of 1%AC and CM both resulted in 90%protection of the hydra(**p≤0.01).Further studies in glyphosate-contaminated soil showed that AC and CM significantly reduced AMPA bioavailability by 53%and 44%,*** in genetically modified(GM)corn showed a conversion of glyphosate to AMPA in roots and sprouts over a 10-day exposure *** of AC and CM reduced AMPA residues in roots and sprouts by 47%-61%.These studies collectively indicate that AC and CM are effective sorbents for AMPA and could be used to reduce AMPA bioavailability from soil and AMPA residues in GM corn plants.

关键词： Glyphosate AMPA Activated carbon Calcium montmorillonite Sorbent

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Urban invaders are not bold risk-takers: a study of 3 invasive lizards in Southern California

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Current Zoology 2020年第6期66卷 657-665页

作者： Breanna j.Putman Gregory B.Pauly Daniel T.Blumstein Department of Ecology and Evolutionary Biology University of CaliforniaLos AngelesCA90095-1606USA Department of Herpetology and Urban Nature Research Center Natural History Museum of Los Angeles County900 Exposition BoulevardLos AngelesCA90007USA Department of Biology California State UniversitySan BernardinoCA 92407USA

Biological invasions threaten biodiversity worldwide,and therefore,understanding the traits of successful invaders could mitigate their *** comm only invasive species do well in disturbed habitats,such as urban environments,and their abilities to effectively respond to disturbarices could con tribute to their ***,there are non invasive species that also do well in disturbed *** question remains whether urban invaders behave differently in urban environments than noninvaders,which could suggest an"urban-exploiting"*** Southern California,the co-occurrence of in vasive Italia n wall lizards Pod arc is siculus,brown anoles Anolis sagrei,and green anoles ***,and native western fence lizards Sceloporus occidentalis offers an opportunity to test whether invasives exhibit consistent differences in risk-taking within human-altered habitats compared with a native *** predicted that invasive lizards would exhibit more bold behavior by having shorter flight-initiation distances(FIDs)and by being found farther from a refuge(behaviors that would presumably maximize foraging in low-risk environments).Invasive populations had similar or longer FIDs,but were consistently found at distances closer to a ***,invasive lizards in urban habitats were not bolder than a native *** on nearby refuges might help species successfully invade urban habitats,and if a general pattern,may pose an added challenge in detecting or eliminating them.

关键词： antipredator boldness escape behavior invasion reptile urban ecology

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Visualising the heart of chaos

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Light(Science & Applications) 2021年第12期10卷 2256-2257页

作者： Nicholas j.Lambert Harald G.L.Schwefel Department of Physics University of OtagoDunedinNew Zealand The Dodd-Walls Centre for Photonic and Quantum Technologies DunedinNew Zealand

The intra-cavity electro-magnetic field distribution in a microdisk resonator can be visualised by inducing a phase shift via a scanning probe beam.

关键词： resonator chaos Visual

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3D printing of ABS *** of processing and effects of multi-wall and single-wall carbon nanotubes on thermal,mechanical and electrical properties

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journal of Materials Science & Technology 2022年第26期121卷 52-66页

作者： Sithiprumnea Dul Brenda j.Alonso Gutierrez Alessandro Pegoretti jaime Alvarez-Quintana Luca Fambri Department of Industrial Engineering and INSTM Research Unit University of TrentoTrento 38123Italy Centro de Investigación en Materiales Avanzados S.C.Unidad MonterreyApodaca 66600Mexico Facultad de Ingeniería Mecánica y Eléctrica Universidad Autónoma de Nuevo LeónAvenida Universidad s/nCiudad UniversitariaSan Nicolás de los Garza 66451México

The following paper reports on a comparative study of the effects of two types of carbon nanotubes,namely multiwall(MWCNT)and single-wall(SWCNT)carbon nanotube,on the properties of 3D-printed parts produced with acrylonitrile-butadiene-styrene(ABS)nanocomposites with various CNT loadings of5-10 wt.%.Quasi-static tensile properties and Vicat softening temperature of 3D-printed parts were enhanced with the increasing CNT *** highest enhancement in tensile properties was observed for the ABS/CNT nanocomposites at 10 wt.%filler loading.3D-printed ABS/SWCNT composites showed higher tensile modulus,better creep stability and higher Vicat ***,the strength of ABS/SWCNT 3D samples is relatively lower than that of ABS/*** addition,3D-printed parts exhibited anisotropic electrical conductive behaviour,which has a conductivity of through-layer of about2-3 orders of magnitude higher than *** highest conductivity of 3D-printed samples reached25.2 S/m,and 9.3 S/m for ABS/MWCNT and ABS/SWCNT composites at 10 wt.%,*** results obtained,*** successful fuse filament fabrication and the consequent electromechanical properties,confirm that these 3D printable nanocomposite could be properly utilized for the production,and application up to about 90°C,of thermoelectric devices and/or resistors for flexible circuits.

关键词： Fuse filament fabrication Conductive polymers Nanocomposites Mechanical properties Creep behavior Resistivity

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无创左室压力-应变环技术评估不同心率甲亢患者左室心肌功能

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武汉大学学报（医学版） 2024年第7期45卷 825-830,855页

作者：王末凤甘玲张加琪尹家保锦州医科大学湖北医药学院附属襄阳市第一人民医院研究生联合培养基地超声影像科湖北襄阳441000 湖北医药学院附属襄阳市第一人民医院超声影像科湖北襄阳441000

目的:研究无创左室压力-应变环(LV-PSL)技术评估不同心率甲亢患者心肌功能的临床应用价值。方法:根据纳入及排除标准在湖北医药学院附属襄阳市第一人民医院收集71名初次确诊且未经治疗的甲亢患者。依据是否心动过速分为A组[心率(HR)100... 详细信息

目的:研究无创左室压力-应变环(LV-PSL)技术评估不同心率甲亢患者心肌功能的临床应用价值。方法:根据纳入及排除标准在湖北医药学院附属襄阳市第一人民医院收集71名初次确诊且未经治疗的甲亢患者。依据是否心动过速分为A组[心率(HR)100次/min,n=33),对照组纳入健康志愿者(n=50)。比较各组参数的差异;探讨HR与心肌做功参数[整体做功指数(GWI)、整体有用功(GCW)、整体无用功(GWW)、整体做功效率(GWE)]的相关性。绘制受试者工作特征(ROC)曲线,分析左室整体纵向应变(GLS)与心肌做功参数评估甲亢患者左室心肌功能的效能。结果:相较于对照组,A组和B组的收缩压(SBP)、HR、游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)、病程、主动脉舒张末期内径(AOEDD)、GWW均增高,而促甲状腺素(TSH)、GLS、GWI、GCW、GWE均降低,差异具有统计学意义(P<0.05)。相较于A组,B组的SBP、HR、FT3、FT4、病程、GWW增高,而GWE降低,差异具有统计学意义(P<0.05)。相关性分析显示,HR与GLS、GWI、GCW、GWE呈负相关,与GWW呈正相关。GLS、GWI、GCW、GWW及GWE评估甲亢患者左室功能的曲线下面积分别为:0.754、0.795、0.728、0.836及0.850。其中,GWW与GWE评估效能较高。结论:无创LV-PSL技术可早期定量评估不同心率甲亢患者左心室功能,可为临床早期预警、早期干预提供参考价值。

关键词：甲亢左室压力-应变环心率心肌功能

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Can intracellular Staphylococcus aureus in osteomyelitis be treated using current antibiotics?A systematic review and narrative synthesis

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Bone Research 2022年第4期10卷 661-678页

作者： Anja R.Zelmer Renjy Nelson Katharina Richter Gerald j.Atkins Centre for Orthopaedic and Trauma Research Faculty of Health and Medical SciencesUniversity of AdelaideAdelaideSA 5000Australia Department of Infectious Diseases Central Adelaide Local Health NetworkAdelaideSA 5000Australia Royal Adelaide Hospital AdelaideSA 5000Australia Richter Lab Department of SurgeryBasil Hetzel Institute for Translational Health ResearchUniversity of AdelaideAdelaideSA 5011Australia

Approximately 40%of treatments of chronic and recurrent osteomyelitis fail in part due to bacterial *** aureus,the predominant pathogen in human osteomyelitis,is known to persist by phenotypic adaptation as small-colony variants(SCVs)and by formation of intracellular reservoirs,including those in major bone cell types,reducing susceptibility to *** infections with *** are difficult to treat;however,there are no evidence-based clinical guidelines addressing these infections in *** conducted a systematic review of the literature to determine the demonstrated efficacy of all antibiotics against intracellular *** relevant to osteomyelitis,including protein biosynthesis inhibitors(lincosamides,streptogramins,macrolides,oxazolidines,tetracyclines,fusidic acid,and aminoglycosides),enzyme inhibitors(fluoroquinolones and ansamycines),and cell wall inhibitors(beta-lactam inhibitors,glycopeptides,fosfomycin,and lipopeptides).The PubMed and Embase databases were screened for articles related to intracellular *** infections that compared the effectiveness of multiple antibiotics or a single antibiotic together with another treatment,which resulted in 34 full-text articles fitting the inclusion *** combined findings of these studies were largely inconclusive,most likely due to the plethora of methodologies ***,the reported findings in the context of the models employed and possible solutions for improved understanding are explored *** rifampicin,oritavancin,linezolid,moxifloxacin and oxacillin were identified as the most effective potential intracellular treatments,the scientific evidence for these is still relatively *** advocate for more standardized research on determining the intracellular effectiveness of antibiotics in *** osteomyelitis to improve treatments and patient outcomes.

关键词： treatment finding synthesis

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Functional nasal surgery in the office-based setting

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World journal of Otorhinolaryngology-Head and Neck Surgery 2023年第3期9卷 236-241页

作者： Alia j.Mowery Christopher R.Razavi Department of Otolaryngology Johns Hopkins MedicineBaltimoreMarylandUSA Department of Otolaryngology School of MedicineOregon Health&Science UniversityPortlandOregonUSA

Objective:Nasal obstruction is a very common problem often addressed by functional nasal ***,these procedures are being performed in the office setting secondary to decreased down time,cost,and obviation of general *** goal with this review is to discuss how to appropriately select patients for office-based procedures,what procedures may be considered,and current outcomes with in-office functional nasal *** Sources:PubMed,Scopus,Google ***:Research databases were searched for articles discussing techniques for performing functional nasal surgery in an office setting,and outcomes of various in-office functional nasal ***:Studies found and included in this review discuss many aspects of office-based functional nasal surgery,including practical points on patient selection and office set-up,what procedures can safely be performed,and outcomes of different techniques to address specific ***,procedures amenable to performance in the office address the internal and external nasal valves,the nasal septum,and the inferior ***:A wide range of techniques to aaddress the nasal valves,septum,and inferior turbinates can be performed in a safe and effective manner without the need for an operative suite.

关键词： nasal obstruction nasal surgical procedures office surgery reconstructive surgery

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Lagoonal carbonate deposition preceding rifting-related uplift:evidence from the Bartonian-Priabonian(Eocene)of the northwestern Gulf of Suez(Egypt)

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journal of Palaeogeography 2022年第1期11卷 8-30页

作者： Emad S.Sallam Dmitry A.Ruban A.j.(Tom)Van Loon Department of Geology Faculty of ScienceBen ha UniversityFarid Nad a Street 15Ben ha 13518Egypt K.G.Razumovsky Moscow State University of Technologies and Management(the First Cossack University) Zemlyanoy Val Street 73Moscow 109004Russia c College of Earth Science and Engineering Shandong University of Science and TechnologyQingdao 266590ShandongChina

Sedimentary successions in the northwestern Gulf of Suez provide important clues to the understanding of the geological evolution of NE Africa during the middle and late *** study focuses on detailed facies analyses in order to characterize the depositional environments and system tracts of the Bartonian-Priabonian succession cropping out in this ***-Priabonian carbonate deposits in five stratigraphic sections constitute,from base to top,the Gebel Hof,Observatory,Sannur,Qurn,and Wadi Hof *** formations contain four local assemblage zones of larger benthic *** of litho-,bio-,and microfacies in the succession resulted in the recognition of 12 lithofacies *** lithofacies are represented by packages of lime-mudstones,wackestones,packstones,pack-to grainstones,grainstones,rudstones,boundstones and *** lithofacies have been grouped into four geneticallyrelated facies associations that represent,respectively,tidal flats/shallow subtidal,restricted-shelf/lagoonal,shoal bar,and outer-shelf lagoon/reefal depositional environments in a downslope shallow-marine inner-ramp *** vertical transitions of these facies associations,representing facies changes through time,imply fluctuations of the regional sea *** two peaks in the Bartonian correspond to well-known global eustatic sea-level rises;the pronounced Priabonian regression must be ascribed to the known global eustatic sea-level fall in combination with regional tectonic *** facies distribution suggests that the study area was located in the direct vicinity of some islands during the Bartonian-Priabonian.

关键词： Lagoonal facies Sea-level fluctuations Middle Eocene Late Eocene Eastern Desert

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Precision of Radiation Chemistry Networks: Playing jenga with Kinetic Models for Liquid-Phase Electron Microscopy

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Precision Chemistry 2023年第10期1卷 592-601页

作者： Birk Fritsch Paolo Malgaretti jens Harting Karl j.j.Mayrhofer Andreas Hutzler Helmholtz Institute Erlangen-Nürnberg for Renewable Energy(IEK-11) Forschungszentrum Jülich GmbH91058 ErlangenGermany Department of Chemical and Biological Engineering and Department of Physics Friedrich-Alexander-Universität Erlangen-Nürnberg91058 ErlangenGermany

Liquid-phase transmission electron microscopy(LP-TEM)is a powerful tool to gain unique insights into dynamics at the *** electron probe,however,can induce significant beam effects that often alter observed phenomena such as radiolysis of the aqueous *** magnitude of beam-induced radiolysis can be assessed by means of radiation chemistry simulations potentially enabling quantitative application of ***,the computational cost of these simulations scales with the amount of reactants *** minimize the computational cost,while maintaining accurate predictions,we optimize the parameter space for the solution chemistry of aqueous systems in general and for diluted HAuCl4 solutions in *** results indicate that sparsened kinetic models can accurately describe steady-state formation during LP-TEM and provide a handy prerequisite for efficient multidimensional *** emphasize that the demonstrated workflow can be easily generalized to any kinetic model involving multiple reaction pathways.

关键词： Electron beam effects gold radiolysis kinetic modeling simulation efficiency liquid cell transmission electron microscopy

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Coping with COVID-19 in Sub-Saharan Africa:What Might the Future Hold?

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Virologica Sinica 2020年第6期35卷 875-884页

作者： Franck j.D.Mennechet Guy R.Takoudjou Dzomo Institute of Molecular Genetic of Montpellier CNRSUniversity of MontpellierMontpellier 34090France University Hospital Complex the"Bon Samaritain" N’DjamenaBP 456Republic of Chad

The African COVID-19 Scenario On December 31st,2019 an unexplained case of pneumonia was reported in Wuhan,Hubei Province,China(Zhou et al.2020).On january 9th,2020,Chinese authorities and the World Health Organization(WHO)officially announced the discovery of a new type of coronavirus called SARS-Co V-2 that causes the coronavirus disease 2019(COVID-19)。

关键词： COV Africa authorities

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