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Estimating steatosis and fibrosis: Comparison of acoustic structure quantification with established techniques

World Journal of Gastroenterology 2015年第16期21卷 4894-4902页

作者： Thomas Karlas Joachim Berger Nikita garnov Franziska Lindner Harald Busse Nicolas linder Alexander Schaudinn Bettina Relke Rima Chakaroun michael Trltzsch Johannes Wiegand Volker Keim IFB Adiposity Diseases Leipzig University Medical Center Department of Medicine Neurology and DermatologyDivision of Gastroenterology and RheumatologyUniversity Hospital Leipzig Department of Diagnostic and Interventional Radiology University Hospital Leipzig Internistische Hausarzt- und Diabetologische Schwerpunktpraxis Dr. Relke Department of Medicine Neurology and DermatologyDivision of Endocrinology and NephrologyUniversity Hospital Leipzig

AIM:To compare ultrasound-based acoustic structure quantification(ASQ) with established non-invasive techniques for grading and staging fatty liver ***:Type 2 diabetic patients at risk of nonalcoholic fatty liver disease(n = 50) and healthy volunteers(n = 20) were evaluated using laboratory analysis and anthropometric measurements, transient elastography(TE), controlled attenuation parameter(CAP), proton magnetic resonance spectroscopy(1H-MRS; only available for the diabetic cohort), and *** parameters mode, average and focal disturbance(FD) ratio were compared with:(1) the extent of liver fibrosis estimated from TE and nonalcoholic fatty liver disease(NAFLD) fibrosis scores; and(2) the amount of steatosis, which was classified according to CAP ***:Forty-seven diabetic patients(age 67.0±8.6 years;body mass index 29.4±4.5 kg/m2)with reliable CAP measurements and all controls(age 26.5±3.2 years;body mass index 22.0±2.7 kg/m2)were included in the *** ASQ parameters showed differences between healthy controls and diabetic patients(Pgarithmic)correlated with the CAP(r=-0.81,P0.08,respectively).CONCLUSION:ASQ parameters correlate with steatosis,but not with fibrosis in fatty liver *** estimation with ASQ should be further evaluated in biopsy-controlled studies.

关键词： Transient elastography Non-alcoholic fatty liver disease Liver stiffness Fibrosis score Controlled attenuation parameter

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Hydrogen-based direct reduction of iron oxide at 700℃:Heterogeneity at pellet and microstructure scales

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International Journal of Minerals,Metallurgy and Materials 2022年第10期29卷 1901-1907页

作者： Yan Ma Isnaldi R.Souza Filho Xue Zhang Supriya Nandy Pere Barriobero-Vila Guillermo Requena Dirk Vogel michael Rohwerder Dirk Ponge Hauke Springer Dierk Raabe Max-Planck-Institut für Eisenforschung Max-Planck-Straße 140237 DüsseldorfGermany Corrosion Center Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Institute of Materials Research German Aerospace Center(DLR)Linder Höhe51147 CologneGermany Lehr-und Forschungsgebiet Metallische Strukturen und Werkstoffsysteme für die Luft-und Raumfahrt RWTH Aachen University52062 AachenGermany Institut für Bildsame Formgebung RWTH Aachen UniversityIntzestraße 1052072 AachenGermany

Steel production causes a third of all industrial CO_(2) emissions due to the use of carbon-based substances as reductants for iron ores,making it a key driver of global ***,research efforts aim to replace these reductants with sustainably produced ***-based direct reduction(HyDR)is an attractive processing technology,given that direct reduction(DR)furnaces are routinely operated in the steel industry but with CH_(4) or CO as *** diffuses considerably faster through shaft-furnace pellet agglomerates than carbon-based ***,the net reduction kinetics in HyDR remains extremely sluggish for high-quantity steel production,and the hydrogen consumption exceeds the stoichiometrically required amount ***,the present study focused on the improved understanding of the influence of spatial gradients,morphology,and internal microstructures of ore pellets on reduction efficiency and metallization during *** this purpose,commercial DR pellets were investigated using synchrotron high-energy X-ray diffraction and electron microscopy in conjunction with electron backscatter diffraction and chemical *** the interplay of different phases with internal interfaces,free surfaces,and associated nucleation and growth mechanisms provides a basis for developing tailored ore pellets that are highly suited for a fast and efficient HyDR.

关键词： hydrogen-based direct reduction iron oxide microstructure spatial gradient metallization

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在美国,大部分咽痛仍在使用抗生素治疗

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英国医学杂志中文版 2014年第S1期17卷 68-69页

作者： michael McCarthy 宋军(译) 不详中国中医科学院医学实验中心

一项新的研究发现,尽管美国疾病控制中心和其他组织数十年来一直努力防止抗生素滥用,但美国医师继续处方抗生素给大多数因单一咽痛就诊的成人。在研究中,马萨诸塞州波士顿哈佛医学院的michael Barnett和Jeffrey linder分析了由全美急诊... 详细信息

一项新的研究发现,尽管美国疾病控制中心和其他组织数十年来一直努力防止抗生素滥用,但美国医师继续处方抗生素给大多数因单一咽痛就诊的成人。在研究中,马萨诸塞州波士顿哈佛医学院的michael Barnett和Jeffrey linder分析了由全美急诊医疗保健和国家医院急诊医疗中心收集的调查数据,这些资料勾画出全美急诊医疗的具有代表性的图像。

关键词：哈佛医学院急诊医疗抗生素滥用抗生素治疗马萨诸塞州全美咽痛调查数据

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