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Plant-substrate biochar properties critical for mediating reductive debromination of 1,2-dibromoethane

Journal of environmental Sciences 2025年第1期147卷 1-10页

作者： Jonathan H.Lindhardt Peter e.Holm Yong-Guan Zhu Changyong Lu Hans Christian b.Hansen Department of Plant and environmental Sciences Faculty of ScienceUniversity of CopenhagenThorvaldsensvej 401871 Frederiksberg CDenmark Key lab of Urban environment and Health Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Sino-Danish Center for education and research China and DenmarkDalgas Avenue 4DK-8000 Aarhus C.Denmark

Dibromoethane is a widespread,persistent organic *** are known mediators of reductive dehalogenation by layered Fe^(Ⅱ)-Fe^(Ⅲ)hydroxides(green rust),which can reduce 1,2-dibromoethane to innocuous bromide and ***,the critical characteristics that determine mediator functionality are lesser *** biochar substrates were pyrolyzed at 600℃and 800℃,characterized by elemental analysis,X-ray photo spectrometry C and N surface speciation,X-ray powder diffraction,specific surface area analysis,and tested for mediation of reductive debromination of 1,2-dibromoethane by a green rust reductant under anoxic conditions.A statistical analysis was performed to determine the biochar properties,critical for debromination kinetics and total debromination *** was shown that selected plant based biochars can mediate debromination of 1,2-dibromoethane,that the highest first order rate constant was 0.082/hr,and the highest debromination extent was 27%in reactivity experiments with 0.1μmol(20μmol/L)1,2-dibromoethane,≈22 mmol/L Fe^(Ⅱ)GR,and 0.12 g/L soybean meal biochar(7 days).Contents of Ni,Zn,N,and P,and the relative contribution of quinone surface functional groups were significantly(pely correlated with 1,2-dibromoethane debromination,while adsorption,specific surface area,and the relative contribution of pyridinic N oxide surface groups were significantly negatively correlated with debromination.

关键词： environmental remediation biochar Persistent organic pollutants(POPs) environmental catalysis Green rust

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MRI未能诊断的乳腺癌:原因分析

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国际医学放射学杂志 2012年第5期 471-471页

作者： e.b.pages I.Millet D.Hoa F.C.Doyon P.Taourel 崔文静 Department of Medical Imaging CHU Lapeyronie371 avenue du Doyen Gaston Giraud

摘要目的回顾分析在先前MR乳腺检查中为假阴性,而在MR随访中进展为乳腺癌的病人资料,并判断可能产生假阴性结果的原因。材料与方法对来自同一机构的58套乳腺MR检查资料进行评估。所有58例受试者先前的MR检查没有诊断为乳腺癌,而在随访... 详细信息

摘要目的回顾分析在先前MR乳腺检查中为假阴性,而在MR随访中进展为乳腺癌的病人资料,并判断可能产生假阴性结果的原因。材料与方法对来自同一机构的58套乳腺MR检查资料进行评估。所有58例受试者先前的MR检查没有诊断为乳腺癌,而在随访时检查出60个乳腺癌(两次MR检查平均间隔13.8个月)。

关键词：乳腺癌病人乳腺肿瘤 MRI 假阴性

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Atmospheric chemistry of trifluorodicarbonyls initiated by Cl atoms:Reactivity trends,mechanism,and acid formation yields

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Journal of environmental Sciences 2025年第5期151卷 12-25页

作者： Pedro L.Lugo Vianni G.Straccia Cynthia b.Rivela Mariano A.Teruel María b.blanco Laboratorio Universitario de Química y Contaminación del Aire(L.U.Q.C.A) Instituto de Investigaciones en Fisicoquímica de Córdoba(I.N.F.I.Q.C.)Dpto.de Fisicoquímica.Facultad de Ciencias QuímicasUniversidad Nacional de Córdoba.Ciudad Universitaria5000 CórdobaArgentina Institute for Atmospheric and environmental Research University of WuppertalDE-42097 WuppertalGermany

Rate coefficients of the gas-phase reactions of Cl atoms with a series of fluorinated diketones(FDKs):CF_(3)C(O)CH_(2)C(O)CH_(3)(TFP),CF_(3)C(O)CH_(2)C(O)CH_(2)CH_(3)(TFH)and CF_(3)C(O)CH_(2)C(O)CH(CH_(3))2(TFMH),have been measured at(298±2)K and under atmospheric *** experiments were performed using the relative-rate method with a GC-FID detection *** different determinations and references used,the following rate coefficients were obtained(in cm3/(molecule·sec)):k_(4)(TFP+Cl)=(1.75±0.21)×10^(−10),k_(5)(TFH+Cl)=(2.05±0.23)×10^(−10),k_(6)(TFMH+Cl)=(2.71±0.34)×10^(−10).Reactivity trends of FDKs were discussed and Free energy Relationships analysis was *** expression lgkOH=1.68 lgkCl+5.71 was obtained for the reactivity of the studied FDKs together with similar unsaturated VOCs with Cl and OH radicals Additionally,acetic acid(CH_(3)C(O)OH)and trifluoroacetic acid(CF_(3)C(O)OH)were positively identified and quantified as degradation products using in situ FTIR *** to the identified products,atmospheric chemical mechanisms were *** atmospheric implications of the studied reactions were assessed by the estimation of the tropospheric lifetimes of TFP,TFH,and TFMH concerning their reaction with Cl atoms to be 48,41,and 31 hours,*** relatively short residence in the atmosphere of the fluorocarbons studied will have a local/regional impact with restricted *** warming potential(GWP(20 yr))calculated for the studied fluoro diketones were 0.014,0.003 and 0.001 for TFP,TFH and TFMH,respectively with a negligible contribution to the greenhouse effect.

关键词： Fluorinated diketones Kinetics SPMe-GC-FID FTIR in situ SAR Free energy relationships

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Intrumer:A Multi Module Distributed explainable IDS/IPS for Securing Cloud environment

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Computers, Materials & Continua 2025年第1期82卷 579-607页

作者： Nazreen banu A S.K.b.Sangeetha Department of Computer Science and engineering SRM Institute of Science and TechnologyVadapalani CampusChennai600026Tamil NaduIndia

The increasing use of cloud-based devices has reached the critical point of cybersecurity and unwanted network *** environments pose significant challenges in maintaining privacy and *** approaches,such as IDS,have been developed to tackle these ***,most conventional Intrusion Detection System(IDS)models struggle with unseen cyberattacks and complex high-dimensional *** fact,this paper introduces the idea of a novel distributed explainable and heterogeneous transformer-based intrusion detection system,named INTRUMeR,which offers balanced accuracy,reliability,and security in cloud settings bymultiplemodulesworking together within *** traffic captured from cloud devices is first passed to the TC&TM module in which the Falcon Optimization Algorithm optimizes the feature selection process,and Naie bayes algorithm performs the classification of *** selected features are classified further and are forwarded to the Heterogeneous Attention Transformer(HAT)*** this module,the contextual interactions of the network traffic are taken into account to classify them as normal or malicious *** classified results are further analyzed by the explainable Prevention Module(XPM)to ensure trustworthiness by providing interpretable *** the explanations fromthe classifier,emergency alarms are transmitted to nearby IDSmodules,servers,and underlying cloud devices for the enhancement of preventive *** experiments on benchmark IDS datasets CICIDS 2017,Honeypots,and NSL-KDD were conducted to demonstrate the efficiency of the INTRUMeR model in detecting network trafficwith high accuracy for different *** outperforms state-of-the-art approaches,obtaining better performance metrics:98.7%accuracy,97.5%precision,96.3%recall,and 97.8%*** results validate the robustness and effectiveness of INTRUMeR in securing diverse cloud environments against sophisticated cyber threats.

关键词： Cloud computing intrusion detection system transformers and explainable artificial intelligence(XAI)

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Neuroinflammation revisited through the microglial lens

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Neural Regeneration Research 2025年第7期20卷 1989-1990页

作者： Renato Socodato João b.Relvas Institute of Research and Innovation in Health(i3S)and Institute for Molecular and Cell biology(IbMC) University of PortoPortoPortugal Department of biomedicine Faculty of Medicine of the University of Porto(FMUP)PortoPortugal

Neuroimmunology is emerging as a pivotal field,shedding light on the intricate dialogues between the central nervous system(CNS)and the immune *** exploration is particularly significant in understanding microglia,the CNS’s innate immune cells,beyond the conventional conflation of“neuroinflammation”and“microglial activation.”This conflation has clouded the true complexity of these processes,potentially stalling scientific progress and the development of new *** challenge the long-standing perspectives that have oversimplified these interactions,advocating for a deeper exploration of the dynamic relationship between neuroinflammation and microglial *** dissecting specific molecular pathways,we aim to illuminate their elaborate roles in neuroinflammatory responses,especially in the context of Alzheimer’s disease(AD).Here,neuroinflammation is not merely a passive observer or a direct antagonist but a complex agent in the disease’s *** article calls for a significant paradigm shift towards an integrative,multi-omics approach to *** such a comprehensive framework is crucial for advancing our understanding of neuroinflammatory conditions and paving the way for targeted therapeutic strategies for brain diseases.

关键词： inflammation simplified activation

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Federated Learning’s Role in Next-Gen TV Ad Optimization

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Computers, Materials & Continua 2025年第1期82卷 675-712页

作者： Gabriela Dobrita Simona-Vasilica Oprea Adela bâra Department of economic Informatics and Cybernetics Bucharest University of Economic StudiesBucharest010374Romania

In the rapidly evolving landscape of television advertising,optimizing ad schedules to maximize viewer engagement and revenue has become *** methods often operate in silos,limiting the potential insights gained from broader data analysis due to concerns over privacy and data *** article introduces a novel approach that leverages Federated Learning(FL)to enhance TV ad schedule optimization,combining the strengths of local optimization techniques with the power of global Machine Learning(ML)models to uncover actionable insights without compromising data *** combines linear programming for initial ads scheduling optimization with ML—specifically,a K-Nearest Neighbors(KNN)model—for predicting ad spot *** into account the diversity and the difficulty of the ad-scheduling problem,we propose a prescriptivepredictive approach in which first the position of the ads is optimized(using Google’s OR-Tools CP-SAT)and then the scheduled position of all ads will be the result of the optimization ***,this output becomes the target of a predictive task that predicts the position of new entries based on their characteristics ensuring the implementation of the scheduling at large scale(using KNN,Light Gradient boosting Machine and Random Forest).Furthermore,we explore the integration of FL to enhance predictive accuracy and strategic insight across different broadcasting networks while preserving data *** FL approach resulted in 8750 ads being precisely matched to their optimal category placements,showcasing an alignment with the intended diversity ***,there was a minimal deviation observed,with 1133 ads positioned within a one-category variance from their ideal placement in the original dataset.

关键词： Ad scheduling prescriptive-predictive approach federated learning KNN

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Protective activity of adipose-derived stem cell extracellular vesicles in ischemia and/or reperfusion

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World Journal of Stem Cells 2025年第1期17卷 1-5页

作者： Alexander e berezin Internal Medicine-II Paracelsus Medical University SalzburgSalzburg 5020Austria

Increasing evidence of the significant clinical value of protection against ischemia/reperfusion injury has contributed to the realization of the independent importance of this approach in improving prognosis and reducing cardiovascular *** vesicles(eVs)derived by adipose mesenchymal stem cells may mediate the paracrine effects of stem cells and provide regenerative and anti-inflammatory properties,which are enhanced byγ-aminobutyric *** protective effects on cardiac myocytes may result from the eV embarked by miR-21-5p,which is a target for thioredoxin-interacting protein,regulating the formation of thioredoxin-interacting protein-thioredoxin complexes and subsequently enhancing the antioxidant activity of *** has been found thatγ-aminobutyric acid governs myocardial bioenergetics through suppressing inflammation and supporting mitochondrial ***,stem cell-based cell-free therapy based on adipose-derived stem cell eVs is considered a promising approach to individualized management of ischemia-induced cardiomyopathy.

关键词： extracellular vesicles Adipose mesenchymal stem cells MicroRNA-21-5p Cardiac protection Ischemia Reperfusion

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Kinetics of the reaction of OH radical with ethylfluoroacetate,ethyl 4,4,4-trifluorobutyrate,and butylfluoroacetate

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Journal of environmental Sciences 2025年第5期151卷 273-283页

作者： Pedro L.Lugo Vianni Straccia Mariano A.Teruel María b.blanco Laboratorio Universitario de Química y Contaminación del Aire(L.U.Q.C.A) Institute for Research in Physical Chemistry of Córdoba(I.N.F.I.Q.C.)Department of Physical ChemistryFaculty of Chemical SciencesNational University of CórdobaUniversity CityCórdoba 5000Argentina Institute for Atmospheric and environmental Research University of WuppertalWuppertal DE-42097Germany

Kinetics of the gas-phase reactions of•OH radicals with a series of fluoroesters were studied for the first time at 298±3 K and atmospheric *** rate coefficients were determined by in situ FTIR spectroscopy in nitrogen and GC-FID in air to monitor the decay of reactants and *** following coefficient values(in 10^(−12)cm^(3)/(molecule•sec))were obtained for ethyl fluoroacetate(eFA),ethyl 4,4,4-trifluorobutyrate(eTb),and butyl fluoroacetate(bFA),respectively:k_(1)(eFA+OH)=1.15±0.25 by FTIR and 1.34±0.23 by GC-FID;k_(2)(eTb+OH)=1.61±0.36 by FTIR and 2.02±0.30 by GC-FID;k_(3)(bFA+OH)=2.24±0.37 by *** trends were developed and correlated with the number of CH_(3)and F substituents in the fluoroester,and structure-activity relationships(SARs)calculations were *** addition,the tropospheric lifetimes of eFA,eTb,and bFA upon degradation by OH radicals were calculated to be 9,6,and 5 days,respectively,indicating that these fluorinated compounds could have a possible regional effect from the emission *** small photochemical ozone creation potentials of 9,7,and 19 were estimated for eFA,eTb,and bFA,*** GlobalWarming Potentials(GWPs)for eFA,eTb,and bFA were calculated for different time *** a 20-year time horizon,the GWPs were 1.393,0.063,and 0.062,*** the case of a 100-year time horizon,the GWPs were 0.379,0.017,and 0.017,and for a 500-year time horizon,the GWPs were 0.108,0.005,and 0.005 for eFA,eTb,and bFA.

关键词： CFC replacements sinks in situ FTIR SAR Acidification potentials Greenhouse gases

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可降解秸秆基地膜增韧改性及其对水稻生长的影响

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林产化学与工业 2025年第1期45卷 63-71页

作者：孙恩惠陈玲范肖东彭鵾 GUeGUIM KANA e b 翟胜丞江苏省农业科学院农业资源与环境研究所农业农村部盐碱土改良与利用(滨海盐碱地)重点实验室江苏省有机固体废弃物资源化协同创新中心江苏南京210014 江苏大学农业工程学院江苏镇江212013 夸祖鲁-纳塔尔大学农业工程与科学学院斯科茨维尔3209 南京林业大学材料科学与工程学院江苏南京210037

以秸秆纤维为原料,经氯化胆碱/尿素-微生物联合预处理之后,依次通过填充不同添加量的杨木纤维、调控湿强剂组合种类以及利用自主研发的纳米木质素聚合物作表面涂层,制备改性秸秆纤维基地膜(MSFM),分析改性处理对可降解秸秆纤维基地膜力... 详细信息

以秸秆纤维为原料,经氯化胆碱/尿素-微生物联合预处理之后,依次通过填充不同添加量的杨木纤维、调控湿强剂组合种类以及利用自主研发的纳米木质素聚合物作表面涂层,制备改性秸秆纤维基地膜(MSFM),分析改性处理对可降解秸秆纤维基地膜力学性能、韧性、疏水性、降解性及水稻生长等的影响。研究结果表明:杨木纤维的填充可有效降低细小秸秆纤维流失率;优选杨木纤维与秸秆纤维质量比为4∶6,湿强剂硫酸铝(AS)添加量1.5%、阳离子分散松香胶(CDR)1.5%,纳米木质素聚合物表层涂布量2~2.5 g/m^(2)时,获得的改性秸秆纤维基地膜(MSFM)抗张指数为30.33 N·m/g、湿抗张指数9.23 N·m/g、撕裂指数5.16 mN·m^(2)/g、耐破指数2.36 kPa·m^(2)/g,应变由0.48%提高到1.13%,增幅达135.42%,且表现出优异的疏水性和湿稳定性。地膜降解试验结果表明:第9周时MSFM失重率达62%,同时盆栽试验期杂草抑制率达81.20%,且具有良好的土壤保温及水稻促生作用。生物可降解秸秆纤维地膜能够从源头减少污染物和化石资源投入,在农田土壤覆盖应用领域前景广阔。

关键词：秸秆纤维可降解地膜增韧改性力学性能杂草防控增温促生

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Altered microRNA composition in the uterine lumen fluid in cattle(bos taurus)pregnancies initiated by artificial insemination or transfer of an in vitro produced embryo

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Journal of Animal Science and biotechnology 2025年第1期16卷 76-91页

作者： Fernando H.biase Sarah e.Moorey Julie G.Schnuelle Soren Rodning Martha Sofia Ortega Thomas e.Spencer School of Animal Sciences Virginia Polytechnic Institute and State University175 W Campus DrBlacksburgVA 24061USA Department of Animal Science University of TennesseeKnoxvilleTN 37996USA Department of Clinical Sciences Auburn UniversityAuburnAL 36849USA Department of Animal Science Auburn UniversityAuburnAL 36849USA Department of Animal and Dairy Sciences University of Wisconsin MadisonMadisonWI 53706USA Division of Animal Sciences University of MissouriColumbiaMO 65211USA

background MicroRNAs(miRNAs)are presented in the uterine lumen of many mammals,and in vitro experiments have determined that several miRNAs are important for the regulation of endometrial and trophoblast *** aim was to identify and contrast the miRNAs present in extracellular vesicles(eVs)in the uterine lumen fluid(ULF)at the onset of attachment in cattle pregnancies(gestation d 18)initiated by artificial insemination(AI)or by the trans-fer of an in vitro-produced blastocyst(IVP-eT).A third group had no conceptus after the transfer of an IVP *** The abundance of 263 annotated miRNAs was quantified in the eVs collected from *** was an increase in the transcript abundance of 20 miRNAs in the ULF eVs from the AI pregnant group,while 4 miRNAs had a lower abundance relative to the group not containing a ***,4 miRNAs were more abun-dant in ULF eVs in the AI pregnant group relative to IVP-eT group(bta-mir-17,bta-mir-7-3,MIR7-1,MIR18A).Specific miRNAs in the ULF eVs were co-expressed with messenger RNAs expressed in extra-embryonic tissues and endome-trium,including genes that are known to be their *** The results provide biological insights into the participation of miRNAs in the regulation of trophoblast proliferation and differentiation,as well as in endometrium *** knowledge that in vitro cultured embryos can contribute to the altered abundance of specific miRNAs in the uterine lumen can lead to the development of cor-rective approaches to reduce conceptus losses during the first month of pregnancy in cattle.

关键词： Artificial reproductive technology Cattle Conceptus embryos endometrium Small RNA

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