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The Thermal Decomposition of Ammonium Meta-Vanadate under Restricted Flow Conditions

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American Journal of Analytical Chemistry 2017年第1期8卷 35-50页

作者： Lori R. brock Jeff W. Keister Michelle France Nathan Fierro thomas C. DeVore Department of Chemistry James Madison University Harrisonburg VA USA

The products obtained during the thermal decomposition of ammonium meta-vanadate depend on the configuration of the container, the mass of the sample, the heating rate and the composition of the carrier gas. The decomposition in an uncapped container produced (NH4)2V4O11, NH4V3O8, and V2O5 as the apparent stable products while the products in a capped container were NH4V3O8, and V2Ox where x was between 4 and 5. These differences are attributed to the different amounts of the evolved gases in the cell. EGA-FTIR clearly established that the reduced final product in the capped cell resulted from a reaction between NH3 and the V2O5 formed during the decomposition. A pre-equilibrium kinetics model where the rate of the reverse reaction depends on the partial pressure of the gaseous products in the cell could explain the different reaction intermediates. This model provides a possible explanation for the different apparent activation energies that have been reported for the thermal decomposition of other compounds where a reversible step could occur in the decomposition mechanism.

关键词： Ammonium Meta-Vanadate Thermal Decomposition Kinetics Activation Energy

Serotonin type 3 receptor subunit gene polymorphisms associated with psychosomatic symptoms in irritable bowel syndrome:A multicenter retrospective study

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World Journal of Gastroenterology 2022年第21期28卷 2334-2349页

作者： Sabrina Berens Yuanjun Dong Nikola Fritz Jutta Walstab Mauro D'Amato Tenghao Zheng Verena Wahl Felix Boekstegers Justo Lorenzo Bermejo Cristina Martinez Stefanie Schmitteckert egbert Clevers Felicitas Engel Annika Gauss Wolfgang Herzog Robin Spiller Miriam Goebel-Stengel Hubert Mönnikes Viola Andresen Frieling thomas Jutta Keller Christian Pehl Christoph Stein-Thöringer Gerard Clarke Timothy G Dinan Eamonn M Quigley Gregory Sayuk Magnus Simrén Jonas Tesarz Gudrun Rappold Lukas van Oudenhove Rainer Schaefert Beate Niesler Department of General Internal Medicine and Psychosomatics University Hospital HeidelbergHeidelberg 69120Germany Department of Human Molecular Genetics Institute of Human GeneticsUniversity of HeidelbergHeidelberg 69120Germany Department of General Internal Medicine and Psychosomatics Internal Medicine IIUniversity Hospital HeidelbergHeidelberg 69120Germany Department of Human Molecular Genetics University of HeidelbergHeidelberg 69120Germany Gastrointestinal Genetics Lab CIC bioGUNE-BRTADerio 48160Spain IKERBASQUE Basque Foundation for ScienceBilbao 48001Spain Unit of Clinical Epidemiology Department of Medicine SolnaKarolinska InstitutetStockholm 17177Sweden Institute of Medical Biometry and Informatics Heidelberg UniversityHeidelberg 69120Germany Lleida Institute for Biomedical Research Dr.PifarréFoundation(IRBLleida) Av.Alcalde Rovira RoureLleida 25198Spain Department of Clinical and Experimental Medicine Translational Research Center for Gastrointestinal DisordersKU LeuvenLeuven 3000Belgium Department of Gastroenterology Infectious Diseases and IntoxicationsUniversity of HeidelbergHeidelberg 69120Germany Department of General Internal Medicine and Psychosomatics Heidelberg UniversityHeidelberg 69120Germany Nottingham Digestive Diseases Centre University of NottinghamNottingham NG72QLUnited Kingdom Helios Klinikum Rottweil Rottweil 78628Germany Department of Medicine Institute of Neurogastroenterology(H.M.)Martin-Luther-HospitalBelin 14193Germany Israelitisches Krankenhaus in Hamburg Hamburg 22297Germany Internal Medicine II Helios Klinikum KrefeldKrefeld 47805Germany Israelitisches Krankenhaus Hamburg Hamburg 22297Ghana Krankenhaus Vilsbiburg Vilsbiburg 84137Germany Division of Microbiome and Cancer German Cancer Research Center(DKFZ)Heidelberg 69120Germany Department of Psychiatry and Neurobehavioral Science University College CorkCork T23Ireland Medicine in Digestive Disorders Department of MedicineLynda K.and David M.Underwood Center for Digestive DisordersHou

BACKGROUND Single-nucleotide polymorphisms(SNPs)of the serotonin type 3 receptor subunit(HTR3)genes have been associated with psychosomatic symptoms,but it is not clear whether these associations exist in irritable bowel syndrome(IBS).AIM To assess the association of HTR3 polymorphisms with depressive,anxiety,and somatization symptoms in individuals with *** In this retrospective study,623 participants with IBS were recruited from five specialty centers in Germany,Sweden,the United States,the United Kingdom,and ***,anxiety,and somatization symptoms and sociodemographic characteristics were *** functional SNPs—HTR3A c.-42C>T,HTR3B c.386A>C,HTR3C c.489C>A,and HTR3E c.*76G>A—were genotyped and analyzed using the dominant and recessive *** also performed separate analyses for sex and IBS *** scores were calculated as the number of minor alleles of the SNPs *** impact of HTR3C c.489C>A was tested by radioligand-binding and calcium influx *** Depressive and anxiety symptoms significantly worsened with increasing numbers of minor HTR3C c.489C>A alleles in the dominant model(F_(depressive)=7.475,P_(depressive)=0.006;F_(anxiety)=6.535,P_(anxiety)=0.011).A higher SNP score(range 0-6)was linked to a worsened depressive symptoms score(F=7.710,P-linear trend=0.006)in *** potential relevance of the HTR3C SNP was corroborated,showing changes in the expression level of 5-HT3AC variant *** We have provided the first evidence that HTR3C c.489C>A is involved in depressive and anxiety symptoms in individuals with *** SNP score indicated that an increasing number of minor alleles is linked to the worsening of depressive symptoms in IBS.

关键词： Irritable bowel syndrome 5-HT3 receptor subunit gene polymorphisms Single-nucleotide polymorphism score Depression Anxiety Somatization

An Investigation of the Effect of the Swamping Phenomenon on Several Block Procedures for Multiple Outliers in Univariate Samples

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Open Journal of Statistics 2013年第5期3卷 229-304页

作者： thomas W. Woolley Department of Economics Finance and Quantitative Analysis Brock School of Business Samford University Birmingham Alabama USA

In its broadest sense, this paper reviews the general outlier problem, the means available for addressing the discordancy (or lack thereof) of an outlier (or outliers), and possible strategies for dealing with them. Two alternate approaches to the multiple outlier problem, consecutive and block testing, and their respective inherent weaknesses, masking and swamping, are discussed. In addition, the relative susceptibility of several tests for outliers in normal samples to the swamping phenomena is reported.

关键词： Outliers Outlier Detection Swamping Masking

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太阳能电池的材料理念

国外科技新书评介 2015年第6期 15-15页

作者： thomas dittrich 王小珊不详中国科学院理化技术研究所

太阳能是一种清洁有效可实用化的能源。太阳能电池是通过光电效应或者光化学效应直接把太阳能转化成电能的装置，主要以半导体材料为基础，利用光电材料吸收光能后发生光电转换反应而产生能量。

关键词：太阳能电池料理光化学效应半导体材料光电效应光电转换光电材料实用化

欧林：打造工程教育的“实验室”(上)--访欧林工学院校长理查德·米勒

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高等工程教育研究 2018年第3期66卷 45-52页

作者：于海琴陶正王连江 Helen Haste 济南大学高等教育研究院美国天主教大学济南大学哈佛大学教育研究生院

访谈从米勒校长荣获布鲁克国际教育奖开始,依次展开欧林工学院独特使命、"择邻而居"缘由、师生携手"欧林伙伴年"、课程设置"有效期"、"小、新"影响大世界、全球800所高校"问道"欧林等话题。米勒校长是欧林工学院的创校校长和首位招聘教... 详细信息

访谈从米勒校长荣获布鲁克国际教育奖开始,依次展开欧林工学院独特使命、"择邻而居"缘由、师生携手"欧林伙伴年"、课程设置"有效期"、"小、新"影响大世界、全球800所高校"问道"欧林等话题。米勒校长是欧林工学院的创校校长和首位招聘教师,有着40多年工程教育经验,他从结缘欧林谈起,道出了欧林基金会意在重新思考"工程师"、重新思考"受过教育内涵"的初心,分享了欧林选址"高等教育的硅谷"、只设置3个专业的原因,回忆了在"欧林伙伴年"师生携手重新定义"工程""工程教育"的场景,讲述了欧林不设学术系部、吸引到卓越教师的故事,列出了欧林的前十年"制造火箭"、后十年"找到宇航员"的"登月计划",解读了"思考大问题""培养学生五大思维模式"的内涵。

关键词：欧林使命欧林伙伴年工程工程教育欧林事物“有效期” 登月计划五大思维模式

Performance and calibration of quark/gluon-jet taggers using 140 fb^(-1) of pp collisions at √s=13 TeV with the ATLAS detector

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Chinese Physics C 2024年第2期48卷 1-25页

作者： G. Aad B. Abbott K. Abeling N.J. Abicht S.H. Abidi A. Aboulhorma H. Abramowicz H. Abreu Y. Abulaiti B.S. Acharya C. Adam Bourdarios L. Adamczyk S.V. Addepalli M.J. Addison J. Adelman A. Adiguzel T. Adye A.A. Affolder Y. Afik M.N. Agaras J. Agarwala A. Aggarwal C. Agheorghiesei A. Ahmad F. Ahmadov W.S. Ahmed S. Ahuja X. Ai G. Aielli A. Aikot M. Ait Tamlihat B. Aitbenchikh I. Aizenberg M. Akbiyik T.P.A. Åkesson A.V. Akimov D. Akiyama N.N. Akolkar K. Al Khoury G.L. Alberghi J. Albert P. Albicocco G.L. Albouy S. Alderweireldt M. Aleksa I.N. Aleksandrov C. Alexa T. Alexopoulos F. Alfonsi M. Algren M. Alhroob B. Ali H.M.J. Ali S. Ali S.W. Alibocus M. Aliev G. Alimonti W. Alkakhi C. Allaire B.M.M. Allbrooke J.F. Allen C.A. Allendes Flores P.P. Allport A. Aloisio F. Alonso C. Alpigiani M. Alvarez Estevez A. Alvarez Fernandez M. Alves Cardoso M.G. Alviggi M. Aly Y. Amaral Coutinho A. Ambler C. Amelung M. Amerl C.G. Ames D. Amidei S.P. Amor Dos Santos K.R. Amos V. Ananiev C. Anastopoulos T. Andeen J.K. Anders S.Y. Andrean A. Andreazza S. Angelidakis A. Angerami A.V. Anisenkov A. Annovi C. Antel M.T. Anthony E. Antipov M. Antonelli F. Anulli M. Aoki T. Aoki J.A. Aparisi Pozo M.A. Aparo L. Aperio Bella C. Appelt A. Apyan N. Aranzabal S.J. Arbiol Val C. Arcangeletti A.T.H. Arce E. Arena J-F. Arguin S. Argyropoulos J.-H. Arling O. Arnaez H. Arnold G. Artoni H. Asada K. Asai S. Asai N.A. Asbah J. Assahsah K. Assamagan R. Astalos S. Atashi R.J. Atkin M. Atkinson H. Atmani P.A. Atmasiddha K. Augsten S. Auricchio A.D. Auriol V.A. Austrup G. Avolio K. Axiotis G. Azuelos D. Babal H. Bachacou K. Bachas A. Bachiu F. Backman A. Badea P. Bagnaia M. Bahmani A.J. Bailey V.R. Bailey J.T. Baines L. Baines O.K. Baker E. Bakos D. Bakshi Gupta V. Balakrishnan R. Balasubramanian E.M. Baldin P. Balek E. Ballabene F. Balli L.M. Baltes W.K. Balunas J. Balz E. Banas M. Bandieramonte A. Bandyopadhyay S. Bansal L. Barak M. Barakat E.L. Barberio D. Barberis M. Barbero M.Z. Barel K.N. Barends T. Barillari M-S. Barisits T. Barklow P. Baron D.A. Baron Mo The ATLAS Collaboration

The identification of jets originating from quarks and gluons,often referred to as quark/gluon tagging,plays an important role in various analyses performed at the Large Hadron Collider,as Standard Model measurements and searches for new particles decaying to quarks often rely on suppressing a large gluon-induced *** paper describes the measurement of the efficiencies of quark/gluon taggers developed within the ATLAS Collaboration,using √s=13 TeV proton–proton collision data with an integrated luminosity of 140 fb^(-1) collected by the ATLAS *** taggers with high performances in rejecting jets from gluon over jets from quarks are studied:one tagger is based on requirements on the number of inner-detector tracks associated with the jet,and the other combines several jet substructure observables using a boosted decision tree.A method is established to determine the quark/gluon fraction in data,by using quark/gluon-enriched subsamples defined by the jet *** in tagging efficiency between data and simulation are provided for jets with transverse momentum between 500 GeV and 2 TeV and for multiple tagger working points.

关键词： ATLAS JET QUARK GLUON TAGGING