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vanadium mineralization at Los Chihuidos sediment-hosted Cu-v deposit,Neuquén Basin,Argentina:An approach to vanadium ore forming processes

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Geoscience Frontiers 2024年第1期15卷 225-246页

作者： Ana L.Rainoldi Daniel Beaufort marta B.Franchini Adolfo Giusiano Sabine petit Patricia Patrier m.Josefina Pons Dpto.de Geología Universidad Nacional del Sur(UNS)8000 Bahía BlancaArgentina Consejo Nacional de Investigaciones Científicas y Técnicas Centro Patagónico de Estudios MetalogenéticosArgentina Universitéde Poitiers IC2MPCNRS-UMR 7285HydrasaF-86022 Poitiers CedexFrance Universidad Nacional del Comahue Facultad de IngenieríaDepartamento de Geología y Petróleo8300 NeuquénArgentina Consultant Geologist 8300 NeuquénArgentina Universidad Nacional de Río Negro Instituto de Investigación en Paleobiología y GeologíaRío NegroArgentina

vanadium mineralization at Los Chihuidos deposit of the Neuquén Basin is linked to the development of a redox front system related to the inflow of hydrocarbons into the red sandstone of the huincul *** of hydrocarbons with oxidized red beds and connate water generated redox reactions where hematite was dissolved due to iron reduction resulting in the discoloration of the red *** the contact between oxidized red sandstone and reduced white sandstone,precipitation of specific mineral phases resulted in the v ore with minor amounts of *** the implementation of the redox interface,abundant v-montmorillonite and v-hematite precipitated at the more oxidizing conditions and Cu-v-corrensite-type at the more reducing conditions of the redox *** the redox front advanced with fluids constantly migrating into the reservoir,more reducing conditions were stablished,promoting chloritization and minor illitization with v-Cu incorporation and continuous upgrading of the *** ore mineralogy consists of clay minerals including v-bearing montmorillonite,Cu-v-corrensite-type,v-di-trioctahedral chlorite and Cu-tri-trioctahedral chlorite with minor v-illite-smectite mixed-layer minerals and associated secondary *** over illitization was favored due to high amounts of Fe and mg in detrital clasts and in connate fluids and by low K availability related to low amounts of detrital *** spatial transition of v and/or Cu bearing clay minerals observed through the mineralized redox front at Los Chihuidos deposit(kaolinite→smectite→illite/smectite→corrensite-type→di-trioctahedral-chlorite→tri-trioctahedral-chlorite)and the related variation of v-Cu concentrations in bulk rock are indicative of increasing ph and decreasing Eh of resident solutions from red to white sandstones during the hypogene mineralization *** influx of Cu-rich oxidized basinal brines precipitated main copper ore with Cu-sulfides in the white sandst

关键词： Clay minerals v-chlorite Redox front Bleaching hydrocarbons

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STCF conceptual design report (volume 1): Physics & detector

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Frontiers of physics 2024年第1期19卷 1-154页

作者： m.Achasov X.C.Ai L.P.An R.Aliberti Q.An X.Z.Bai Y.Bai O.Bakina A.Barnyakov v.Blinov v.Bobrovnikov D.Bodrov A.Bogomyagkov A.Bondar I.Boyko Z.h.Bu F.m.Cai h.Cai J.J.Cao Q.h.Cao X.Cao Z.Cao Q.Chang K.T.Chao D.Y.Chen h.Chen h.X.Chen J.F.Chen K.Chen L.L.Chen P.Chen S.L.Chen S.m.Chen S.Chen S.P.Chen W.Chen X.Chen X.F.Chen X.R.Chen Y.Chen Y.Q.Chen h.Y.Cheng J.Cheng S.Cheng T.G.Cheng J.P.Dai L.Y.Dai X.C.Dai D.Dedovich A.Denig I.Denisenko J.m.dias D.Z.Ding L.Y.Dong W.h.Dong v.Druzhinin D.S.Du Y.J.Du Z.G.Du L.m.Duan D.Epifanov Y.L.Fan S.S.Fang Z.J.Fang G.Fedotovich C.Q.Feng X.Feng Y.T.Feng J.L.Fu J.Gao Y.N.Gao P.S.Ge C.Q.Geng L.S.Geng A.Gilman L.Gong T.Gong B.Gou W.Gradl J.L.Gu A.Guevara L.C.Gui A.Q.Guo F.K.Guo J.C.Guo J.Guo Y.P.Guo Z.h.Guo A.Guskov K.L.han L.han m.han X.Q.hao J.B.he S.Q.he X.G.he Y.L.he Z.B.he Z.X.heng B.L.hou T.J.hou Y.R.hou C.Y.hu h.m.hu K.hu R.J.hu W.h.hu X.h.hu Y.C.hu J.hua G.S.huang J.S.huang m.huang Q.Y.huang W.Q.huang X.T.huang X.J.huang Y.B.huang Y.S.huang N.hüsken v.Ivanov Q.P.Ji J.J.Jia S.Jia Z.K.Jia h.B.Jiang J.Jiang S.Z.Jiang J.B.Jiao Z.Jiao h.J.Jing X.L.Kang X.S.Kang B.C.Ke m.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin Y.Lei E.Levichev C.h.Li C.Li D.Y.Li F.Li G.Li G.Li h.B.Li h.Li h.N.Li h.J.Li h.L.Li J.m.Li J.Li L.Li L.Li L.Y.Li N.Li P.R.Li R.h.Li S.Li T.Li W.J.Li X.Li X.h.Li X.Q.Li X.h.Li Y.Li Y.Y.Li Z.J.Li h.Liang J.h.Liang Y.T.Liang G.R.Liao L.Z.Liao Y.Liao C.X.Lin D.X.Lin X.S.Lin B.J.Liu C.W.Liu D.Liu F.Liu G.m.Liu h.B.Liu J.Liu J.J.Liu J.B.Liu K.Liu K.Y.Liu K.Liu L.Liu Q.Liu S.B.Liu T.Liu X.Liu Y.W.Liu Y.Liu Y.L.Liu Z.Q.Liu Z.Y.Liu Z.W.Liu I.Logashenko Y.Long C.G.Lu J.X.Lu N.Lu Q.F.Lü Y.Lu Y.Lu Z.Lu P.Lukin F.J.Luo T.Luo X.F.Luo Y.h.Luo h.J.Lyu X.R.Lyu J.P.ma P.ma Y.ma Y.m.ma F.maas S.malde D.matvienko Z.X.meng R.mitchell A.Nefediev Y.Nefedov S.L.Olsen Q.Ouyang P.Pakhlov G.Pakhlova X.Pan Y.Pan E.Passemar Y.P.Pei h.P.Peng L.Peng X.Y.Peng X.J.Peng K.Peters S.Pivovarov E.Pyata B.B.Qi Y.Q.Qi W.B.Qian Y.Qian C.F.Qiao J.J.Qin J.J.Qin L.Q.Qin X.S.Qin T.L.Qiu J.Rademacker C.F.Redmer h.Y.Sang Anhui University Hefei 230039China Beihang University Beijing 100191China Budker Institute of Nuclear Physics Novosibirsk 630090Russia CAS Key Laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish Laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central China Normal University Wuhan 430079China Central South University Changsha 410083China China University of Geosciences Wuhan 430074China China University of mining and Technology Xuzhou 221116China École Polytechnique Fédérale de Lausanne(EPFL) LausanneSwitzerland Fudan University Shanghai 200433China Goethe University Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China hangzhou Institute for Advanced Study UCASHangzhou 310024China hebei Normal University Shijiazhuang 050024China hebei University Baoding 071002China hefei University of Technology Hefei 230601China helmholtz Institute mainz Staudinger Weg 18D-55099 MainzGermany henan Normal University Xinxiang 453007China henan University Kaifeng 475004China high Energy Physics Center Chung-Ang UniversitySeoul 06974Korea higher School of Economy 11 Pokrovsky Bulvar Moscow 109028Russia huangshan University Huangshan 245000China hubei University of Automotive Technology Shiyan 442002China hunan Normal University Changsha 410081China hunan University of Science and Technology Xiangtan 411201China hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner mongolia University Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of high Energy Physics Chinese Academy of SciencesBeijing 100049China Institute of modern Physics Chinese Academy of SciencesLanzhou 730000China Institute of Physics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China Jilin University Changch

The superτ-charm facility(STCF)is an electron–positron collider proposed by the Chinese particle physics *** is designed to operate in a center-of-mass energy range from 2 to 7 Gev with a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** STCF will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory—the BEPCII,providing a unique platform for exploring the asymmetry of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and physics beyond the Standard *** STCF project in China is under development with an extensive R&D *** document presents the physics opportunities at the STCF,describes conceptual designs of the STCF detector system,and discusses future plans for detector R&D and physics case studies.

关键词： electron–positron collider tau-charm region high luminosity STCF detector conceptual design

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Urban heat mitigation by green and blue infrastructure:Drivers,effectiveness,and future needs

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The Innovation 2024年第2期5卷 145-166页

作者： Prashant Kumar Sisay E.Debele Soheila Khalili Christos h.halios Jeetendra Sahani Nasrin Aghamohammadi maria de Fatima Andrade maria Athanassiadou Kamaldeep Bhui Nerea Calvillo Shi-Jie Cao Frederic Coulon Jill L.Edmondson David Fletcher Edmilson dias de Freitas hai Guo matthew C.hort madhusudan Katti Thomas Rodding Kjeldsen Steffen Lehmann Giuliano maselli Locosselli Shelagh K.malham Lidia morawska Rajan Parajuli Christopher D.F.Rogers Runming Yao Fang Wang Jannis Wenk Laurence Jones Global Centre for Clean Air Research(GCARE) School of SustainabilityCivil and Environmental EngineeringFaculty of Engineering and Physical SciencesUniversity of SurreyGuildford GU27XHUK Institute for Sustainability University of SurreyGuildford GU27XHSurreyUK School of Built Environment University of ReadingWhiteknightsReading RG66BUUK School Design and the Built Environment Curtin University Sustainability Policy InstituteKent StBentley 6102Western Australia harry Butler Institute Murdoch UniversityMurdoch 6150Western Australia Atmospheric Sciences Department Institute of AstronomyGeophysics and Atmospheric SciencesUniversity of Sao PauloSao Paulo 05508-090Brazil met Office FitzRoy RoadExeter EX13PBUK Department of Psychiatry and Nuffield Department of Primary Care health Sciences Wadham CollegeUniversity of OxfordOxfordUK Centre for Interdisciplinary methodologies University of WarwickWarwickUK School of Architecture Southeast University2 SipailouNanjing 210096China Cranfield University School of WaterEnvironment and EnergyCranfield MK430ALUK Plants PhotosynthesisSoil ClusterSchool of BiosciencesUniversity of SheffieldSheffield S102TNUK UK Centre for Ecology&hydrology Environment Centre WalesDeiniol RoadBangor LL572UWUK Air Quality Studies Department of Civil and Environmental EngineeringThe Hong Kong Polytechnic UniversityHong KongChina Department of Forestry and Environmental Resources Faculty Excellence Program for Leadership in Public ScienceNorth Carolina State UniversityChancellorRaleighNC 27695USA Departments of Architecture&Civil Engineering and Chemical EngineeringUniversity of BathBath BA27AYUK School of Architecture University of NevadaLas VegasNV 89154USA Department of Tropical Ecosystems Functioning Center of Nuclear Energy in AgricultureUniversity of São PauloPiracicaba 13416-000Sao PauloBrazil School of Ocean Sciences Bangor UniversityMenai BridgeAnglesey LL595 ABUK International Laboratory for Air Quality and health Science and Engine

The combination of urbanization and global warming leads to urban overheating and compounds the frequency and intensity of extreme heat events due to climate ***,the risk of urban overheating can be mitigated by urban green-blue-grey infrastructure(GBGI),such as parks,wetlands,and engineered greening,which have the potential to effectively reduce summer air *** many reviews,the evidence bases on quantified GBGI cooling benefits remains partial and the practical recommendations for implementation are *** systematic literature review synthesizes the evidence base for heat mitigation and related co-benefits,identifies knowledge gaps,and proposes recommendations for their implementation to maximize their *** screening 27,486 papers,202 were reviewed,based on 51 GBGI types categorized under 10 main *** GBGI(green walls,parks,street trees)have been well researched for their urban cooling ***,several other GBGI have received negligible(zoological garden,golf course,estuary)or minimal(private garden,allotment)*** most efficient air cooling was observed in botanical gardens(5.0±3.5℃),wetlands(4.9±3.2℃),green walls(4.1±4.2℃),street trees(3.8±3.1℃),and vegetated balconies(3.8±2.7℃).Under changing climate conditions(2070–2100)with consideration of RCP8.5,there is a shift in climate subtypes,either within the same climate zone(e.g.,Dfa to Dfb and Cfb to Cfa)or across other climate zones(e.g.,Dfb[continental warm-summer humid]to BSk[dry,cold semi-arid]and Cwa[temperate]to Am[tropical]).These shifts may result in lower efficiency for the current GBGI in the *** the importance of multiple services,it is crucial to balance their functionality,cooling performance,and other related co-benefits when planning for the future *** global GBGI heat mitigation inventory can assist policymakers and urban planners in prioritizing effective interventions to reduce the risk of urban overheating,fi

关键词： estuary walls extreme

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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

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An Optimal Control Approach to hIv Immunology

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Applied mathematics 2015年第6期6卷 1115-1130页

作者： Edilson F. Arruda Claudia m. dias Camila v. de magalhã es Dayse h. Pastore Roberto C. A. Thomé hyun mo Yang Instituto Alberto Luiz Coimbra de Pó s Graduaç ã o e Pesquisa de Engenharia Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Instituto multidisciplinar Universidade Federal Rural do Rio de Janeiro Nova Igua&ccedil u Brazil Departamento de matemá tica Centro Federal de Educa&ccedil ã o Tecnoló gica Celso Suckow da Fonseca Rio de Janeiro Brazil Departamento de matemá tica Aplicada Universidade Estadual de Campinas Campinas Brazil

This paper introduces a mathematical model which describes the dynamics of the spread of hIv in the human body. This model is comprised of a system of ordinary differential equations that involve susceptible cells, infected cells, hIv, immune cells and immune active cells. The distinguishing feature in the proposed model with respect to other models in the literature is that it takes into account cells that represent two distinct mechanisms of the immune system in the defense against hIv: the non-hIv-activated cells and the hIv-activated cells. With a view at minimizing the side effects of a treatment that employs a drug combination designed to attack the hIv at various stages of its life cycle, we introduce control variables that represent the infected patient’s medication. The optimal control rule that prescribes the medication for a given time period is obtained by means of Pontryagin’s maximum Principle.

关键词： hIv mathematical modelling Optimal Control Pontryagin’s maximum Principle

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Advanced Imaging Techniques in Lhermitte-Duclos Disease (LDD): A Case Report and Brief Literature Review

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Neuroscience & medicine 2017年第1期8卷 1-7页

作者： N. J. Delgado A. S. Lessa T. h. L. Carmo G. m. dias E. J. A. valadares L. C. Campos v. m. vilela Division of Radiology and Diagnostic Imaging Universitary Hospital of the Federal University of Juiz de Fora Juiz de Fora Brazil

Lhermitte-Duclos disease (LDD), also called dysplastic gangliocytoma of the cerebellum, is a rare condition described in 1920. It represents a disorganization of cerebellar architecture with overgrowth of cerebellar ganglion cells which replace granular cells and Purkinje cells. In this report we present the case of a 62-year-old male affected by this disease, as well as literature review of the clinical, morphological and functional radiological findings.

关键词： Lhermitte-Duclos Disease Displastic Gangliocytoma Central Nervous System mRI

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非酒精性脂肪肝的体素内不相干运动扩散加权成像:一项3.0TmRI研究

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国际医学放射学杂志 2012年第6期 586-587页

作者： B.Guiu J.m.petit v.Capitan S.Aho 郭琪 D.masson P.H.Lefevreet al.The University of BurgundyINSERM U866DijonFrance

摘要目的对伴发脂肪肝和不伴发脂肪肝的2型糖尿病病人mR扩散加权[DW,基于体素内不相干运动(IvIm)理论]成像的纯分子扩散(D)、灌注相关扩散(D)及灌注分数(f)进行比较。材料与方法本前瞻性研究获得伦理委员会的批准,所有病人均签署知情同... 详细信息

摘要目的对伴发脂肪肝和不伴发脂肪肝的2型糖尿病病人mR扩散加权[DW,基于体素内不相干运动(IvIm)理论]成像的纯分子扩散(D)、灌注相关扩散(D)及灌注分数(f)进行比较。材料与方法本前瞻性研究获得伦理委员会的批准,所有病人均签署知情同意书。

关键词：体素内不相干运动 mR 脂肪肝病肝脏脂肪含量

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饲料中添加海甘蓝对羔羊采食量、消化率、生长性能、胴体品质和肉质的影响

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饲料博览 2016年第7期26卷 55-55页

作者： ítavo L C v de Souza A D v Fávaro S P ítavo C C B F petit h v.dias a m morais m G Coelho R G Reis F A Costa J A A Roscoe R

试验旨在明确饲料中不同添加量的海甘蓝(Cm)替代大豆对羔羊采食量、生长性能、血液参数、胴体品质和肉品质的影响。选取特塞尔羔羊80头,包括40头公羊(23.3±0.98 kg)和40头母羊(22.1±0.95 kg),随机分成4组,饲料分别添加Cm 0、64、128、... 详细信息

试验旨在明确饲料中不同添加量的海甘蓝(Cm)替代大豆对羔羊采食量、生长性能、血液参数、胴体品质和肉品质的影响。选取特塞尔羔羊80头,包括40头公羊(23.3±0.98 kg)和40头母羊(22.1±0.95 kg),随机分成4组,饲料分别添加Cm 0、64、128、192 g·kg^(-1)。结果表明,干物质采食量与Cm添加量成线性增加关系,但添加Cm对消化率和体增重无显著影响。随着饲料中Cm含量的增加,料重比降低。各组间胴体重量和商用肉含量无显著差异。饲料中添加较高含量Cm使羔羊肌肉比例和肉骨率降低。随着Cm添加量的增加,公羊皮下脂肪含量显著低于母羊,公羊和母羊间除皮下脂肪含量不同,其他各组数据相近。各组间的背最长肌的化学组成和肉品质均相似。试验结果表明,当Cm在生长期羔羊饲料中添加量达到192 g·kg^(-1),日粮精粗比为350~650时,Cm对羔羊胴体品质和生产性能无不良影响。

关键词：干物质采食量胴体品质生长性能海甘蓝消化率饲料羔羊肉质

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饲料中添加不同含量的海甘蓝对羔羊采食量、消化率、生产性能、胴体品质和肉品质的影响

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饲料博览 2016年第6期 55-55页

作者： ítavo L C v Souza A D v de Fávaro S P ítavo C C B F petit h v.dias a m morais m G Coelho R G Reis F A Costa J A A Roscoe R

试验通过饲喂不同含量的海甘蓝替代豆粕日粮（Cm）,观察羔羊的采食量、生长性能、血液参数、胴体品质和肉品质变化。选取特塞尔绵羊80头,包括公羊（23.3±0.98 kg）40头和母羊（22.1±0.95 kg）40头,均为羔羊,随机分为4组,分别饲喂含Cm... 详细信息

试验通过饲喂不同含量的海甘蓝替代豆粕日粮（Cm）,观察羔羊的采食量、生长性能、血液参数、胴体品质和肉品质变化。选取特塞尔绵羊80头,包括公羊（23.3±0.98 kg）40头和母羊（22.1±0.95 kg）40头,均为羔羊,随机分为4组,分别饲喂含Cm干物质（Dm）0、64、128和192 g·kg-1的饲料。随着Cm含量的增加,Dm采食量也随之增加,但对消化率和日增重无显著影响。随着Cm添加量增加,料重比降低,胴体品质和商用肉含量相近。高含量Cm组羔羊的肌肉比例和肉骨率降低。随着日粮中Cm含量的增加,公羊胴体脂肪含量远低于母羊,而其余指标对公羊母羊的影响相近。背最长肌的化学组成和品质在各组间无显著差异。试验结果表明,饲粮中添加Cm量达192 g·kg-1,饲料精粗比为350650时,对生长期羔羊的胴体品rfm和生长性能无不良影响。

关键词：羔羊海甘蓝胴体背最长肌

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2型糖尿病病人肝脏脂肪宏观非均质性mR研究

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国际医学放射学杂志 2012年第6期 608-608页

作者： v.Capitan J.m.petit S.Aho P.h.Lefevre S.Favelier R.Loffroy 徐国萍 Department of Radiology CHU(University Hospital)14 rue Paul GaffarelBP 7790821079 DijonFrance

目的用mR评价2型糖尿病(T2D)病人肝脏脂肪沉积的非均质性。方法收集121例T2D病人,以1h-mRS检查结果作为参考标准。肝脏脂肪变性定义为肝脏脂肪含量(LFC)≥5.56%。三回波梯度回波序列做T1恢复和T2*衰减的校正,用于计算左右半肝及肝段的LF... 详细信息

目的用mR评价2型糖尿病(T2D)病人肝脏脂肪沉积的非均质性。方法收集121例T2D病人,以1h-mRS检查结果作为参考标准。肝脏脂肪变性定义为肝脏脂肪含量(LFC)≥5.56%。三回波梯度回波序列做T1恢复和T2*衰减的校正,用于计算左右半肝及肝段的LFC。用线性混合模型进行分析。结果 59例(48.8%)病人有肝脏脂肪变性,62例(51.2%)没有肝脏脂肪变性。左半肝脂肪变性比右半肝大(P<0.0001)[平均差为1.32%(范围:0.01%～8.75%)]。7例(5.8%)病人一侧LFC<5.56%,而另一侧LFC≥5.56%。在肝段水平左、右半肝的脂肪变性是非均质的,非脂肪变性病人分别为P<0.001、P<0.0001,脂肪变性病人分别为P<0.0001、P=0.0002[最大平均差为3.98%(范围:0.74%～19.32%)]。23例(19%)病人一个肝段LFC<5.56%,然而在至少一个其他肝段LFC≥5.56%。结论总的说来,肝段或叶脂肪变性的平均变异性低。然而,段的变异性有时能导致误诊。

关键词： mR波谱肝脏脂肪含量 2型糖尿病梯度回波序列变异性

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