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Characteristics and source attribution of PM2.5 during 2016 G20 Summit in Hangzhou: efficacy of radical measures to reduce source emissions

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Journal of environmental Sciences 2021年第8期33卷 47-65页

作者： Ke Chen sarah e.metcalfe Huan Yu Jingsha Xu Honghui Xu Dongsheng Ji Chengjun Wang Hang Xiao Jun He Department of Chemical and environmental engineering University of Nottingham Ningbo ChinaNingbo315100China School of Geography University of NottinghamNottinghamNG72RDUK Department of Atmospheric Science School of Environmental StudiesChina University of GeosciencesWuhan430074China School of Geography Earth and Environmental SciencesUniversity of BirminghamEdgbastonBirminghamB152TTUnited Kingdom Zhejiang Institute of Metrological Sciences Hangzhou310008China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing100029China College of Resources and environmental Science South-Central University for NationalitiesWuhan430074China Centre for excellence in Regional Atmos.environ.Institute of Urban environment Chinese Academy SciencesXiamen361021China Key Laboratory of Carbonaceous Wastes Processing and Process Intensification Research of Zhejiang Province University of Nottingham Ningbo ChinaNingbo315100China

A field campaign was conducted to study the PM2.5 and atmospheric gases and aerosol’s components to evaluate the efficacy of radical measures implemented by the Chinese government to improve air quality during the 2016 G20 Summit in Hangzhou *** lower level of PM2.5(32.48±11.03μg/m3)observed during the control period compared to precontrol and post-control periods showed that PM2.5 was alleviated by control *** on the mass concentrations of particulate components,the emissions of PM2.5 from local sources including fossil fuel,coal combustion,industry and construction were effectively reduced,but non-exhaust emission was not reduced as effectively as *** accumulation of SNA(SO42-,NO3-,NH4+)was observed during the control period,due to the favourable synoptic weather conditions for photochemical reactions and heterogeneous *** of transboundary transport during the control period,air masses from remote areas contributed significantly to local ***,secondary organic carbon(OCsec)exhibited more sensitivity than primary organic carbon(OCpri)to control measures,and the increased nitrogen oxidation ratio(NOR)implied the regional transport of aged sec-ondary aerosols to the study ***,the results from various approaches revealed that local pollution sources were kept under control,indicating that the implementation of mitigation measures were helpful in improving the air quality of Hangzhou during G20 *** reduce ambient levels of PM2.5 further in Hangzhou,regional control policies may have to be taken so as to reduce the impact of long-range transport of air masses from inland China.

关键词： G20 Summit PM2.5 Long-range transport CMB model

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墨西哥两个水文封闭型高原湖泊沉积物记录到受人类活动影响的敏感度

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AMBIO－人类环境杂志 2005年第6期34卷 464-470页

作者： sarah J.Davies sarah e.metcalfe Fernando Bernal-Brooks Arturo Chacón-Torres John G.Farmer A.B.MacKenzie Anthony J.Newton 李四海 Aberystwyth威尔士大学地理和地球科学研究所第四纪环境变化科研小组诺丁汉大学地理学院 de Investigaciones Sobre Recursos Naturales研究所爱丁堡大学地球科学学院苏格兰大学环境研究中心

本文提供了墨西哥中部两个高原湖泊近期环境快速变化的证据。从济拉温湖(米却肯州)和胡安艾卡特兰湖(哈利斯科州)获得了多个沉积物钻芯,利用^(210)Pb和^(14)C,以及火山灰年代测定法确定年代,进行了硅藻组合、磁化率和金属含量分析。在... 详细信息

本文提供了墨西哥中部两个高原湖泊近期环境快速变化的证据。从济拉温湖(米却肯州)和胡安艾卡特兰湖(哈利斯科州)获得了多个沉积物钻芯,利用^(210)Pb和^(14)C,以及火山灰年代测定法确定年代,进行了硅藻组合、磁化率和金属含量分析。在殖民时期,两盆地内有汇水区被扰动的迹象,但这两个地方最显著的特征是,最近20年来硅藻种群组合特征的快速变化,这指示着富营养化的开始。尽管在胡安艾卡特兰湖还没获得这方面的任何数据,但济拉温湖的湖泊学数据支持这种解释。古湖泊学在跟踪近期变化过程,特别是在缺乏常规湖泊监测计划的情况下是一种强有力的工具。这些湖泊对汇水区的开发变化特别敏感,必须在将来的流域管理中予以考虑。

关键词：湖泊沉积物高原湖泊人类活动影响敏感度墨西哥封闭型水文 ^210Pb 快速变化硅藻组合

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Assessing bioactivity of environmental water samples filtered using nanomembrane technology and mammalian cell lines

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eco-environment & Health 2024年第3期3卷 347-354页

作者： sarah e.Morgan Lisa A.DeLouise Department of environmental Medicine University of Rochester Medical CenterRochesterNY 14642USA Department of Biomedical engineering University of RochesterRochesterNY 14627USA Department of Dermatology University of Rochester Medical CenterRochesterNY 14642USA Lake Ontario Center for Microplastics and Human Health in a Changing environment University of Rochester Medical CenterRochesterNY 14642USA

This project reports on the use of a novel nanomembrane filtering technology to isolate and analyze the bioactivity of microplastic(MP)-containing debris from Lake Ontario water *** MPs are a complex mixture of polymers and sorbed chemicals that are persistent and can exhibit a wide range of toxic *** human exposure to MPs is unavoidable,it is necessary to characterize their bioactivity to assess potential health *** work seeks to quantify MP presence in the nearshore waters of Lake Ontario and begin to characterize the bioactivity of the filtrate containing *** utilized silicon nitride(SiN)nanomembrane technology to isolate debris sized between 8 and 20μm from lake water samples collected at various times and *** were identified with Nile red ***-based assays were conducted directly on the filtered debris to test for cell viability,aryl hydrocarbon receptor(AhR)activity,and interleukin 6(IL-6)levels as a measure of proinflammatory *** samples contained *** of the isolated debris impacted cell ***,AhR activity and IL-6 levels varied over ***,no associations were observed between the amount of plastic and *** differences in activity are likely due to variations in the physiochemical properties of debris between *** results highlight the need for increased sampling to fully characterize the bioactivity of MPs in human cells and to elucidate the role that sample physiochemical and spatiotemporal properties play in this activity.

关键词： Microplastics SiN nanomembranes Lake Ontario Aryl hydrocarbon receptor(AhR)activity IL-6 levels Bioactivity

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Steroidal scaffold decorations in Solanum alkaloid biosynthesis

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Molecular Plant 2024年第8期17卷 1236-1254页

作者： Rosalind Lucier Mohamed O.Kamileen Yoko Nakamura Sofiia Serediuk Ranjit Barbole Jens Wurlitzer Maritta Kunert sarah Heinicke sarah e.O'Connor Prashant D.Sonawane Department of Natural Product Biosynthesis Max Planck Institute for Chemical Ecology07745 JenaGermany Research Group Biosynthesis and NMR Max Planck Institute for Chemical Ecology07745 JenaGermany Biochemical Sciences Division CSIR-National Chemical LaboratoryPune 411008MaharashtraIndia

Steroidal glycoalkaloids(SGAs)are specialized metabolites produced by hundreds of Solanum species,including important vegetable crops such as tomato,potato,and *** it has been known that SGAs play important roles in defense in plants and“anti-nutritional"effects(e.g.,toxicity and bitterness)to humans,many of these molecules have documented anti-cancer,anti-microbial,antiinflammatory,anti-viral,and anti-pyretic *** these,α-solasonine andα-solamargine isolated from black nightshade(Solanum nigrum)are reported to have potent anti-tumor,anti-proliferative,and anti-inflammatory ***,α-solasonine andα-solamargine,along with the core steroidal aglycone solasodine,are the most widespread SGAs produced among the Solanum ***,it is still unknown how plants synthesize these bioactive steroidal *** comparative metabolomictranscriptome-guided approach,biosynthetic logic,combinatorial expression in Nicotiana benthamiana,and functional recombinant enzyme assays,here we report the discovery of 12 enzymes from *** that converts the starting cholesterol precursorto solasodine aglycone,and the downstreamα-solasonine,α-solamargine,and malonyl-solamargine SGA *** further identified six enzymes from cultivated eggplant that catalyze the production ofα-solasonine,α-solamargine,and malonyl-solamargine SGAs from solasodine aglycone via glycosylation and atypical malonylation *** work provides the gene tool box and platform for engineering the production of high-value,steroidal bioactive molecules inheterologoushosts usingsyntheticbiology.

关键词： steroidal glycoalkaloids Solanum biosynthetic pathway α-solamargine malonyl-solamargine specialized metabolites

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Linear endoscopic ultrasound:Current uses and future perspectives in mediastinal examination

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World Journal of Gastroenterology 2024年第33期30卷 3803-3809页

作者： eyad Gadour sarah Al Ghamdi Bogdan Miutescu Hossam e Shaaban Zeinab Hassan Aymen Almuhaidb Hussein H Okasha Department of Gastroenterology and Hepatology King Abdulaziz National Guard HospitalAhsa 36428Saudi Arabia Department of Internal Medicine Zamzam University CollegeSchool of MedicineKhartoum 11113Sudan Department of Medicine Division of GastroenterologyKing Abdulaziz UniversityJeddah 3646Saudi Arabia Department of Gastroenterology and Hepatology Victor Babes University of Medicine and PharmacyTimisoara 300041Romania Advanced Regional Research Center in Gastroenterology and Hepatology Victor Babes University of Medicine and PharmacyTimisoara 300041Romania Department of Internal Medicine and Gastroenterology NhtmriCairo 11796Egypt Department of Internal Medicine Stockport Hospitals NHS Foundation TrustManchester SK27JEUnited Kingdom Department of Gastroenterology King Faisal Specialist Hospital and Research CenterRiyadh 11211Saudi Arabia Department of Internal Medicine Division of Gastroenterology and HepatologyKasr Al-Aini School of MedicineCairo UniversityCairo 11562Egypt

This editorial elaborates on the current and future applications of linear endoscopic ultrasound(eUS),a substantial diagnostic and therapeutic modality for various anatomical *** scope of endosonographic assessment is broad and,among other factors,allows for the evaluation of the mediastinal anatomy and related pathologies,such as mediastinal lymphadenopathy and the staging of central malignant lung ***,eUS assessment has proven more accurate in detecting small lesions missed by standard imaging examinations,such as computed tomography or magnetic resonance *** focus on its current uses in the mediastinum,including lung and esophageal cancer staging,as well as evaluating mediastinal lymphadenopathy and submucosal *** editorial also explores future perspectives of eUS in mediastinal examination,including ultrasound-guided therapies,artificial intelligence integration,advancements in mediastinal modalities,and improved diagnostic approaches for various mediastinal lesions.

关键词： Linear endoscopic ultrasound Mediastinal examination Lung cancer Computed tomography Magnetic resonance imaging

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Implementation and evaluation of exercise is Medicine in primary care clinics within a large academic health system

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Family Medicine and Community Health 2024年第1期12卷 16-27页

作者： John Kevin Ong Dayao Caroline e L Duffy Amalia M Cristiano Gene'Rusty'Kallenberg sarah e Linke University of California San Diego School of Medicine La JollaCaliforniaUSA Milken Institute of Public Health The George Washington UniversityWashingtonDistrict of ColumbiaUSA The University of Texas Medical Branch at Galveston School of Medicine GalvestonTexasUSA Scripps Family Medicine Residency Scripps Mercy Hospital Chula VistaChula VistaCaliforniaUSA Herbert Wertheim School of Public Health&Human Longevity Science University of California San DiegoLa JollaCaliforniaUSA Department of Family Medicine University of California San DiegoLa JollaCaliforniaUSA Omada Health San FranciscoCaliforniaUSA

Objective exercise is Medicine(eIM)is a global initiative encouraging healthcare providers to routinely assess and promote physical activity(PA)among *** objective of this study was to evaluate the feasibility,adoption,implementation and effectiveness of eIM from patient,clinician and healthcare staff perspectives using a combination of electronic health record(eHR),survey and interview *** This study used a combination of the Practical Robust Implementation and Sustainability Model(PRISM)and the Learning evaluation model to implement *** captured from the eHR,including Physical Activity Vital Sign(PAVS)scores,and data collected from qualitative surveys and interviews were used to evaluate the programme’s Reach,effectiveness,Adoption,Implementation,Maintenance(Re-AIM,which is embedded within PRISM)from provider,staff and patient *** Five primary care clinics within a large academic health *** A total of 24443 patients from all participating clinics had at least one PAVS score during the study period.A total of 17 clinicians completed surveys,and 4 clinicians,8 medical assistants and 9 patients completed *** Implementation fidelity metrics varied widely between components and across clinics but were generally consistent over time,indicating a high degree of programme *** was highest during the first 6 months of the COVID-19 pandemic when most visits were *** PAVS scores increased from 57.7(95%CI:56 to 59.4)to 95.2(95%CI:91.6 to 98.8)min per week at 6 months for patients not meeting PA guidelines at baseline and decreased from 253.84(95%CI:252 to 255.7)to 208.3(95%CI:204.2 to 212.4)min per week at 6 months for patients meeting PA guidelines at *** eIM implementation,clinician-estimated time spent discussing PA with patients increased for 35%of providers and stayed the same for 53%.Conclusion Overall,this study established eIM’s feasibility,adoption,implementation

关键词： routine qualitative completed

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Oryza CLIMtools:A genome–environment association resource reveals adaptive roles for heterotrimeric G proteins in the regulation of rice agronomic traits

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Plant Communications 2024年第4期5卷 145-165页

作者： Angel Ferrero-Serrano David Chakravorty Kobie J.Kirven sarah M.Assmann Biology Department Pennsylvania State University208 Mueller LaboratoryUniversity ParkPA 16802USA Intercollege Graduate Degree Program in Bioinformatics and Genomics Pennsylvania State University208 Mueller LaboratoryUniversity ParkPA 16802USA

Modern crop varieties display a degree of mismatch between their current distributions and the suitability of the local climate for their *** address this issue,we present Oryza CLIMtools(https://***/CLIMtools/oryza_v1.0/),thefirst resource for pan-genome prediction of climate-associated genetic variants in a crop *** CLIMtools consists of interactive web-based databases that enable the user to(1)explore the local environments of traditional rice varieties(landraces)in South-east Asia and(2)investigate the environment by genome associations for 658 Indica and 283 Japonica rice landrace accessions collected from georeferenced local environments and included in the 3K Rice Ge-nomes *** demonstrate the value of these resources by identifying an interplay betweenflowering time and temperature in the local environment that is facilitated by adaptive natural variation in OsHD2 and disrupted by a natural variant in *** quantitative trait locus analysis has suggested the impor-tance of heterotrimeric G proteins in the control of agronomic ***,we analyzed the climate associations of natural variants in the different heterotrimeric G protein *** identified a coordi-nated role of G proteins in adaptation to the prevailing potential evapotranspiration gradient and revealed their regulation of key agronomic traits,including plant height and seed and panicle *** conclude by highlighting the prospect of targeting heterotrimeric G proteins to produce climate-resilient crops.

关键词： Oryza sativa rice G by e adaptation flowering time GWAS OsHD2 OsSOC1 heterotrimeric G pro-tein OsRGA1 d1 OsGS3 OsDeP1 OsGGC2

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Comparison of fungal vs bacterial infections in the medical intensive liver unit:Cause or corollary for high mortality?

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World Journal of Hepatology 2024年第3期16卷 379-392页

作者： sarah Khan Hanna Hong Stephanie Bass Yifan Wang Xiao-Feng Wang Omar T Sims Christine e Koval Aanchal Kapoor Christina C Lindenmeyer Department of Internal Medicine Cleveland ClinicClevelandOH 44195United States Cleveland Clinic Lerner College of Medicine Cleveland ClinicClevelandOH 44195United States Department of Pharmacy Cleveland ClinicClevelandOH 44195United States Department of Quantitative Health Sciences/Biostatistics Section Cleveland ClinicClevelandOH 44195United States Department of Gastroenterology Hepatology and NutritionCleveland ClinicClevelandOH 44195United States Department of Infectious Disease Cleveland ClinicClevelandOH 44195United States Department of Critical Care Medicine Cleveland ClinicClevelandOH 44195United States

BACKGROUND Due to development of an immune-dysregulated phenotype,advanced liver disease in all forms predisposes patients to sepsis acquisition,including by opportunistic pathogens such as *** data exists on fungal infection within a medical intensive liver unit(MILU),particularly in relation to acute on chronic liver *** To investigate the impact of fungal infections among critically ill patients with advanced liver disease,and compare outcomes to those of patients with bacterial *** From our prospective registry of MILU patients from 2018-2022,we included 27 patients with culture-positive fungal infections and 183 with bacterial *** compared outcomes between patients admitted to the MILU with fungal infections to bacterial *** was extracted through chart *** All fungal infections were due to Candida species,and were most frequently blood *** among patients with fungal infections was significantly worse relative to the bacterial cohort(93%vs 52%,Pe majority of the fungal cohort developed grade 2 or 3 acute on chronic liver failure(ACLF)(90%vs 64%,P=0.02).Patients in the fungal cohort had increased use of vasopressors(96%vs 70%,P=0.04),mechanical ventilation(96%vs 65%,Pe to acute kidney injury(78%vs 52%,P=0.014).On MILU admission,the fungal cohort had significantly higher Acute Physiology and Chronic Health evaluation(108 vs 91,P=0.003),Acute Physiology Score(86 vs 65,P=0.003),and Model for end-Stage Liver Disease-Sodium scores(86 vs 65,P=0.041).There was no significant difference in the rate of central line use preceding culture(52%vs 40%,P=0.2).Patients with fungal infection had higher rate of transplant hold placement,and lower rates of transplant;however,differences did not achieve statistical *** Mortality was worse among patients with fungal infections,likely attributable to severe ACLF *** studies examinin

关键词： Fungal Infection Sepsis Acute on chronic liver failure Intensive care

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Design and synthesis of synthetic promoters for consistency of gene expression across growth phases and scale in ***

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Synthetic and Systems Biotechnology 2024年第2期9卷 330-339页

作者： Kristin V.Presnell Omar Melhem sarah M.Coleman Nicholas J.Morse Hal S.Alper McKetta Department of Chemical engineering The University of Texas at Austin200E Dean Keeton St.Stop C0400AustinTX78712USA Institute for Cellular and Molecular Biology The University of Texas at Austin2500 Speedway AvenueAustinTX78712USA

Metabolic engineering and synthetic biology endeavors benefit from promoters that perform consistently(or robustly)with respect to cellular growth phase(exponential and stationary)and fermentation scale(microtiter plates,tubes,flasks,and bioreactors).However,nearly all endogenous promoters(especially in Saccharomyces cerevisiae)do not perform in this *** this work,a hybrid promoter engineering strategy is leveraged to create novel synthetic promoters with robustness across these *** a multi-dimensional RNA-seq dataset,promoters with specific phase dependencies were *** enriched with functional transcription factors were identified using MeMe *** motif-containing fragments could impart activity dependence in the opposing ***,we obtain two new promoters with high and consistent expression across both phases by increasing the exponential phase activity of the starting stationary-phase scaffold by 38 and 23-fold ***,we show that these promoters function consistently across various laboratory growth scales over time in a microtiter plate and in ***,this work presents and validates a new strategy for engineering promoters in *** with high levels of expression that are robust to cellular growth phase and the scale of the culture.

关键词： endogenous synthetic stationary

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Surgical intervention combined with weight-bearing walking training promotes recovery in patients with chronic spinal cord injury:a randomized controlled study

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Neural Regeneration Research 2024年第12期19卷 2773-2784页

作者： Hui Zhu James D.Guest sarah Dunlop Jia-Xin Xie Sujuan Gao Zhuojing Luo Joe e.Springer Wutian Wu Wise Young Wai Sang Poon Song Liu Hongkun Gao Tao Yu Dianchun Wang Libing Zhou Shengping Wu Lei Zhong Fang Niu Xiaomei Wang Yansheng Liu Kwok-Fai So Xiao-Ming Xu Kunming Tongren Hospital KunmingYunnan ProvinceChina Neurological Surgery and the Miami Project to Cure ParalysisMiller School of MedicineUniversity of MiamiMiamiFLUSA School of Biological Sciences The University of Western AustraliaPerthWAAustralia Minderoo Foundation PerthWAAustralia Clinical Center for Spinal Cord Injury Kunming General Hospital of Chengdu Military CommandKunmingYunnan ProvinceChina Department of Biostatistics and Health Data Science Indiana University School of MedicineIndianapolisINUSA Department of Orthopedic Spinal Surgery Xijing HospitalFourth Military Medical UniversityXi’anShaanxi ProvinceChina Spinal Cord and Brain Injury Research Center Department of Physical Medicine and RehabilitationUniversity of Kentucky College of MedicineLexingtonKYUSA Guangdong-HongKong-Macao Institute of CNS Regeneration Jinan UniversityGuangzhouGuangdong ProvinceChina W.M.Keck Center for Collaborative Neuroscience Rutgers UniversityPiscatawayNJUSA Neurosurgery Department Chinese University of Hong KongPrince of Wales HospitalHong Kong Special Administration RegionChina Spinal Cord and Brain Injury Research Group Stark Neurosciences Research InstituteDepartment of Neurological SurgeryIndiana University School of MedicineIndianapolisINUSA

For patients with chronic spinal cord injury,the co nventional treatment is rehabilitation and treatment of spinal cord injury complications such as urinary tract infection,pressure sores,osteoporosis,and deep vein *** is rarely perfo rmed on spinal co rd injury in the chronic phase,and few treatments have been proven effective in chronic spinal cord injury *** of effective therapies fo r chronic spinal co rd injury patients is *** conducted a randomized controlled clinical trial in patients with chronic complete thoracic spinal co rd injury to compare intensive rehabilitation(weight-bearing walking training)alone with surgical intervention plus intensive *** clinical trial was registered at ***(NCT02663310).The goal of surgical intervention was spinal cord detethering,restoration of cerebrospinal fluid flow,and elimination of residual spinal cord *** found that surgical intervention plus weight-bearing walking training was associated with a higher incidence of American Spinal Injury Association Impairment Scale improvement,reduced spasticity,and more rapid bowel and bladder functional recovery than weight-bearing walking training ***,the surgical procedures and intensive rehabilitation were *** Spinal Injury Association Impairment Scale improvement was more common in T7-T11 injuries than in T2-T6 *** combined with rehabilitation appears to have a role in treatment of chronic spinal cord injury patients.

关键词： chronic spinal cord injury intensive rehabilitation locomotor training neurological recovery surgical intervention weightbearing walking training

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