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高分辨率肺部CT 第3版 3

大气颗粒物中蒎烯氧化物、二元羧酸和硝基苯酚的季节变化和温度依赖性研究

2007年

作者： W. Richard Webb m.D. Nestor l.müller m.D. Ph.D. David P. Naidich m.D.原

161901

ISBN: (纸本)9787509111536

161901

关键词：计算机X线扫描体层摄影肺疾病

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大气颗粒物中蒎烯氧化物、二元羧酸和硝基苯酚的季节变化和温度依...

The effect of adsorbent textural and functional properties on model naphthenic acid adsorption

第六届全国环境化学大会暨环境科学仪器与分析仪器展览会

作者：张颖仪 l.mller R.Winterhalter G.K.moortgat T.Hoffmann U.Pschl 华南理工大学环境科学与工程学院

＜正＞本研究采用双通道采样器在德国美因茨大气环境中的粗、细颗粒物进行为期一年（2006.6～2007.5）样品采集,并使用高效液相色谱质谱联用技术（HPlC-mS）对样品中所含的包括蒎烯氧化产物蒎酸、蒎酮酸和3-甲基-1,2,3-丁三酸（3-mBTCA...

＜正＞本研究采用双通道采样器在德国美因茨大气环境中的粗、细颗粒物进行为期一年（2006.6～2007.5）样品采集,并使用高效液相色谱质谱联用技术（HPlC-mS）对样品中所含的包括蒎烯氧化产物蒎酸、蒎酮酸和3-甲基-1,2,3-丁三酸（3-mBTCA）,二元羧酸（C5-C16）和硝基苯酚等的水溶性有机物进行分析。同时,本研究还对这些水溶性有机物的季节变化、源和汇等进行了讨论。结果表明:（1）己二酸和邻苯二甲酸与壬二酸的比值表明该点主要受到生物源的影响;（2）3-mBTCA和室外温度的倒数呈强烈的阿列纽斯型相关性（Arrhenius-typecorrelation）。模型计算显示所观测到的3-mBTCA温

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Journal of Environmental Sciences 2025年第2期148卷 27-37页

作者： Tyler m.Roy Elmira Nazari Oliver K.l.Strong Paul R.Pede Andrew J.Vreugdenhil material Science Department of ChemistryTrent University1600 West BankPeterboroughOntario K9L 0G2Canada Carbonix 690 Mountain RdSuite 200Fort William First NationOntario P7J 1G8Canada

Naphthenic acids,NAs,are a major contaminant of concern and a focus of much research around remediation of oil sand process affected waters,*** activated carbon adsorbents are an attractive option given their low cost of fabrication and impl.mentation.A deeper evaluation of the effect NA structural differences have on uptake affinity is *** we provide an in-depth exploration of NA adsorption including many more model NA species than have been assessed previously with evaluation of adsorption kinetics and isotherms at the relevant alkaline pH of OSPW using several different carbon adsorbents with pH buffering to simulate the behaviour of real *** for the NA varied considerably regardless of the activated carbon used,ranging from 350 mg/g to near zero highlighting recalcitrant *** equilibrium data was explored to identify structural features of these species and key physiochemical properties that influence *** found that certainNAwill be resistant to adsorptionwhen hydrophobic adsorbents are *** isotherm modelling helped explore interactions occurring at the interface between NA and adsorbent *** identified the importance of NA hydrophobicity for activated carbon *** is also presented that indicates favorable hydrogen bonding between certain NA and surface site hydroxyl groups,demonstrating the importance of adsorbent surface functionality for NA *** research highlights the challenges associated with removing NAs from OSPW through adsorption and also identifies howadsorbent surface chemistry modification can be used to increase the removal efficiency of recalcitrant NA species.

关键词： Adsorption Activated carbon model naphthenic acids Isotherm modelling

Assessment of the heartwood contribution to carbon accumulation in Pinus sylvestris l. trees under different forest site conditions

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FOREST ECOSYSTEmS 2025年第1期12卷 159-175页

作者： Galibina, Natalia A. Nikerova, Kseniya m. moshnikov, Sergey A. Kryshen, Alexander m. Russian Acad Sci Forest Res Inst Karelian Res Ctr 11 Pushkinskaya St Petrozavodsk 185910 Karelia Russia

Background: The heartwood (HW) proportion in the trunk of mature trees is an important characteristic not only for wood quality but also for assessing the role of forests in carbon sequestration. We have for the first time studied the proportion of HW in the trunk and the distribution of carbon and extractives in sapwood (SW) and HW of 70-80 year old Pinus sylvestris l. trees under different growing conditions in the pine forests of North-West Russia. method: We have examined the influence of conditions and tree position in stand (dominant, intermediate and suppressed trees) in the ecological series: blueberry pine forest (Blu) - lingonberry pine forest (lin) - lichen pine forest (lic). We have analyzed the influence of cl.mate conditions in the biogeographical series of lin: the middle taiga subzone - the northern taiga subzone - the transition area of the northern taiga subzone and tundra. Results: We found that the carbon concentration in HW was 1.6%-3.4% higher than in SW, and the difference depended on growing conditions. Carbon concentration in HW increased with a decrease in stand productivity (Blu-lin-lic). In medium-productive stands, the carbon concentration in SW was higher in intermediate and supressed trees compared to dominant trees. In the series from south to north, carbon concentration in HW increased by up to 2%, while in SW, it rose by 2.7%-3.8%. Conclusions: Our results once again emphasized the need for an empirical assessment of the accurate carbon content in aboveground wood biomass, including various forest growing conditions, to better understand the role of boreal forests in carbon storage.

关键词： Scots pine Blueberry pine forest lingonberry pine forest lichen pine forest Tree social class Cl.mate Carbon content Extractives Cellulose lignin

Hunting for a viral proxy in bioaerosols of swine buildings using molecular detection and metagenomics

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Journal of Environmental Sciences 2025年第2期148卷 69-78页

作者： Valérie létourneau marie-Josée Gagné Jonathan m.Vyskocil Vincent Brochu Kim Robitaille martin Gauthier Julie Brassard Caroline Duchaine Quebec Heart and lung Institute Research Centre-Universitélaval 2725 Chemin Sainte-FoyQuebecG1V 4G5Canada Saint-Hyacinthe Research and Development Centre Agriculture and Agri-Food Canada3600 Casavant Boulevard WestSaint-HyacintheJ2S 8E3Canada Department of Biochemistry Microbiologyand Bio-informaticsFaculty of Science and EngineeringUniversitéLaval1045 Avenue de la MédecineQuebecG1V 0A6Canada The Swine and Poultry Infectious Diseases Research Centre Faculty of Veterinary Medicine of Universitéde Montréal3200 Rue SicotteSaint-HyacintheJ2S 2M2Canada

There are l.mited biosecurity measures directed at preventing airborne transmission of viruses in *** effectiveness of dust mitigation strategies such as oil sprinkling,to decrease risk of airborne virus transmission are *** and qPCR for common fecal viruses were used to hunt for a ubiquitous virus to serve as a proxy when evaluating the efficiency of mitigation strategies against airborne viral infectious *** particles were collected from swine buildings using high-vol.me air *** DNA and RNA were used to perform specific RT-qPCR and qPCR and analyzed by highthroughput *** astroviruses group 2 were common(from 102 to 105 genomic copies per cubic meter of air or gc/m^(3),93%positivity)while no norovirus genogroup II was recovered from air *** torque teno sus virus were detected by qPCR in low concentrations(from 101 to 102 gc/m^(3),47%positivity).Among the identified viral families by metagenomics analysis,Herelleviridae,microviridae,myoviridae,Podoviridae,and Siphoviridae were *** phage vB_Avim_AVP of Aerococcus was present in all air samples and a newly designed qPCR revealed between 101 and 105 gc/m^(3) among the samples taken for the present study(97%positivity)and banked samples from5-and 15-year old studies(89%positivity).According to the present study,both the porcine astrovirus group 2 and the phage vB_Avim_AVP of Aerococcus could be proxy for airborne viruses of swine buildings.

关键词： Bioaerosols Viral.metagenomics Astrovirus Aerococcus phage Swine buildings

Hybrid and enhanced electrokinetic system for soil remediation from heavy metals and organic matter

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Journal of Environmental Sciences 2025年第1期147卷 424-450页

作者： Faris m.Hamdi Namuun Ganbat Ali Altaee Akshaya K.Samal Ibrar Ibrar John l.Zhou Adel O.Sharif Centre for Green Technology School of Civil and Environmental EngineeringThe University of Technology Sydney15 BroadwayNSW 2007Australia Department of Civil Engineering Jazan UniversityJazan 82822Saudi Arabia Centre for Nano and material Sciences Jain UniversityRamanagaraBangaloreKarnataka 562112India School of mechanical Sciences Faculty of Engineering and Physical SciencesUniversity of SurreyAustralia

The electrokinetic(EK)process has been proposed for soil decontamination from heavy metals and organic *** advantages of the EK process include the low operating energy,suitability for fine-grained soil decontamination,and no need for *** the last three decades,enhanced and hybrid EK systems were developed and tested for improving the efficiency of contaminants removal from *** enhanced-EK processes exhibited excellent efficiency in removing contaminants by controlling the soil pH or the chemical reaction of *** hybrid systems were tested to overcome environmental hurdles or technical drawbacks of decontamination *** of the EK process with phytoremediation,bioremediation,or reactive filtermedia(RFm)improved the remediation process performance by capturing contaminants or facilitating biological agents’movement in the ***,EK process coupling with solar energy was proposed to treat off-grid contaminated soils or reduce the EK energy *** study reviews recent advancements in the enhancement and hybrid EK systems for soil remediation and the type of contaminants targeted by the *** study also covered the impact of operating parameters,imperfect pollution separation,and differences in the physicochemical characteristics and microstructure of soil/sediment on the EK ***,a comparison between various remediation processes was presented to highlight the pros and cons of these technologies.

关键词： Electrokinetic Soil remediation Reactive filter media Enhanced electrokinetic Contaminants

Emerging role of A-kinase anchoring protein 5 signaling in reward circuit function

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Neural Regeneration Research 2025年第10期20卷 2913-2914页

作者： William J.Flerlage mark l.Dell’Acqua Brian m.Cox Fereshteh S.Nugent Uniformed Services University of the Health Sciences Department of Pharmacology and Molecular TherapeuticsBethesdaMDUSA Department of Pharmacology University of Colorado School of MedicineAnschutz Medical CampusAuroraCOUSA

There is a strong evidence supporting the hypothesis of synaptic dysfunction as a major contributor to neural circuit and network disruption underlying emotional and mood dysregulation in psychiatric disorders(Simmons et al.,2024).Diverse sets of distinct molecular signaling pathways converge on the synapse to regulate synaptogenesis,synaptic function,and synaptic plasticity in brain regions and circuits through complex interactions organized by numerous multivalent protein scaffolds,including the family of proteins known as A-kinase anchoring proteins(AKAPs).

关键词： function supporting

探讨最适宜评价下颌骨髁状突骨皮质的颞下颌关节mR成像序列——以微CT为参考标准的尸体研究

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国际医学放射学杂志 2012年第5期 500-500页

作者： C.A.Karlo R.Patcas T.Kau H.Watzal l.Signorelli l.müller 史红媛 Department of Diagnostic and Interventional Radiology University Hospital ZurichRmistrasse 1008091ZurichSwitzerland

摘要目的以尸体标本的微CT成像结果作为标准,探讨最适宜评价下颌骨髁状突骨皮质的颞下颌关节mR成像矢状位序列。方法将8例头部标本(平均年龄81岁)共16例颞下颌关节进行mR成像。两名观察者在所有mRI矢状位序列上测量了下颌骨髁状突前、... 详细信息

摘要目的以尸体标本的微CT成像结果作为标准,探讨最适宜评价下颌骨髁状突骨皮质的颞下颌关节mR成像矢状位序列。方法将8例头部标本(平均年龄81岁)共16例颞下颌关节进行mR成像。两名观察者在所有mRI矢状位序列上测量了下颌骨髁状突前、上及后部的骨皮质厚度(客观分析),并且观察是否有骨皮质变薄、骨质侵蚀或骨表面不规则以及皮质下囊肿和髁状突前部骨赘形成(主观分析)。以微CT成像结果作为参考标准进行统计学分析。

关键词：下颌骨髁状突 mRI 微CT 颞下颌关节关节病

Knotting ligands to control.metal coordination geometry

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Science China Chemistry 2025年第2期68卷 403-404页

作者： Fabien B.l.Cougnon Department of Chemistry and Nanoscience Centre University of JyväskyläJyväskyläFinland

Zinc is a metal of particular importance for life[1].It is the most abundant transition metal in biological systems after iron and contributes both structural and catalytic roles to many cellular *** properties of Zn^(Ⅱ),unlike those of any other first-row transition metal ions,explain its biological *** to its filled d-shell orbitals,Zn^(Ⅱ) is redox-stable,has a ligand-field energy stabilization of zero and,consequently,no typical coordination number and *** metalloproteins exploit these features to carry a broad range of chemical reactions in mild *** metalloenzymes,unsaturated ZnII centres often act as redox-stable lewis *** protein backbone provides a highly preorganized environment around the metal centre and accompanies the changes in coordination geometry occurring as substrate transformation proceeds,thereby modulating the metal reactivity.

关键词： coordination geometry centre