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100篇 您的检索式:作者名="David Stein"
    题名 作者 年代 出处 被引量
1数据驱动下的在线学习状态分析模型及应用研究显示文摘学习状态是决定学习者在线学习效果的重要指标。针对在线学习中学习者学习状态的测量方法,探究学习者的学习状态与学习行为之间的关系,可以为教师、学习者和教育管理者提供评估、预测与干预的依据。基于'云平台'上269名学习者的12912条在线学习操作数据,构建数据驱动的学习状态分析模型,对投入、挫折、困惑、分心四种学习状态的行为特征进行了分析。其精确度和科恩的一致性的结果表明:机器分析结果与自我报告结果一致性较高,具有一定参考性。对其的进一步应用研究结果表明:学习者的学习状态与其学习效果显著相关,这为基于学习者学习行为数据的状态分析研究提供了参考。王洋 刘清堂 张文超 David Stein 2019远程教育杂志2019,37,2:16
2Anemia and iron deficiency in gastrointestinal and liver conditions显示文摘Iron deficiency anemia(IDA) is associated with a number of pathological gastrointestinal conditions other than inflammatory bowel disease, and also with liver disorders. Different factors such as chronic bleeding, malabsorption and inflammation may contribute to IDA. Although patients with symptoms of anemia are frequently referred to gastroenterologists, the approach to diagnosis and selection of treatment as well as follow-up measures is not standardized and suboptimal. Iron deficiency, even without anemia, can substantially impact physical and cognitive function and reduce quality of life. Therefore, regular iron status assessment and awareness of the clinical consequences of impaired iron status are critical. While the range of options for treatment of IDA is increasing due to the availability of effective and well-tolerated parenteral iron preparations, a comprehensive overview of IDA and its therapy in patients with gastrointestinal conditions is currently lacking. Furthermore, definitions and assessment of iron status lack harmonization and there is a paucity of expert guidelines on this topic. This review summarizes current thinking concerning IDA as a common co-morbidity in specific gastrointestinal and liver disorders, and thus encourages a more unified treatment approach to anemia and iron deficiency, while offering gastroenterologists guidance on treatment options for IDA in everyday clinical practice.Jürgen Stein Susan Connor Garth Virgin David Eng Hui Ong Lisandro Pereyra 2016World Journal of Gastroenterology2016,22,35:5
3The DA VINCI Study: Phase 2 Primary Results of VEGF Trap-Eye in Patients with Diabetic Macular Edema显示文摘Diana V. Do Ursula Schmidt-Erfurth Victor H. Gonzalez Carmelina M. Gordon Michael Tolentino Alyson J. Berliner Robert Vitti Rene Rückert Rupert Sandbrink David Stein Ke Yang Karola Beckmann Jeff S. Heier 2011Ophthalmology2011,,9:3
4Association of Holter-based measures including T-wave alternans with risk of sudden cardiac death in the community-dwelling elderly: the Cardiovascular Health Study显示文摘Phyllis K. Stein Devang Sanghavi Nona Sotoodehnia David S. Siscovick John Gottdiener 2010Journal of Electrocardiology2010,,3:2
5Single-Port Transvesical Simple Prostatectomy: Initial Clinical Report显示文摘Mihir M. Desai Monish Aron David Canes Khaled Fareed Oswaldo Carmona Georges-Pascal Haber Sebastien Crouzet Juan Carlos Astigueta Roy Lopez Robert de Andrade Robert J. Stein James Ulchaker Rene Sotelo Inderbir S. Gill 2008Urology2008,,5:1
6Mathematical models of binary spherical-motion encoders显示文摘David Stein Edward R Scheinerman Gregory S Chirikjian 2003IEEE/ASME Transactions on Mechatronics2003,8,2:1
7Herd Behavior and Investment 显示文摘Scharfstein David and Jeremy Stein 1990American Economic Review1990,80,:1
815-YEAR EXPERIENCE WITH THE MANAGEMENT OF EXTRINSIC URETERAL OBSTRUCTION WITH INDWELLING URETERAL STENTS显示文摘STEVE Y. CHUNG ROBERT J. STEIN DOUGLAS LANDSITTEL BENJAMIN J. DAVIES DAVID C. CUELLAR RONALD L. HREBINKO TATUM TARIN TIMOTHY D. AVERCH 2004The Journal of Urology2004,,2:1
9Identification, sequence and developmental expression of invertebrate flotillins from Drosophila melanogaster 1 The nucleotide sequences reported in this paper have been submitted to the GenBank/EMBL Data Bank with accession Nos AF044734 and AF044916. 1显示文摘Ferruccio Galbiati Daniela Volonté Jason S Goltz Zac Steele Jonaki Sen Jennifer Jurcsak David Stein Leslie Stevens Michael P Lisanti 1998Gene1998,,2:1
10Herd behavior and investment显示文摘David S Scharfstein Jeremy C Stein 0,,:1
11The Dark Side of Internal Capital Markets:Divisional Rent-Seeking and Inefficient Investment显示文摘Scharfstein David S Jeremy C Stein 2000Journal of Finance2000,55,6:1
12Left Ventricular Thrombus Enhancement After Intravenous Injection of Echogenic Immunoliposomes: Studies in a New Experimental Model显示文摘Andrew Hamilton Shao-Ling Huang Drew Warnick Adam Stein Mark Rabbat Taruna Madhav Bonnie Kane Ashwin Nagaraj Melvin Klegerman Robert MacDonald David McPherson 2002Circulation: Journal of the American Heart Association2002,,23:1
13A real-time national GPS network for atmospheric research and education显示文摘Randolph H Ware David W Fulker Seth A Stein 2004Bull Amer Meteor Soc2004,81,4:1
14Cloning of a developmentally regulated tegument antigen of Schistosoma mansoni显示文摘Stein LD David JR 1986Molecular and Biochemical Parasitology1986,20,3:1
15Kinematic design and commutation of a spherical stepper motor显示文摘Gregory S Chirikjian David Stein 1999IEEE/ASME Transactions on Mechatronics1999,4,4:1
16Preparation and characterization of macroporous α-- Alumina显示文摘Sergey Sokolov David Bell Andreas Stein 2003J Am Ceram Soc2003,86,9:1
17The Dark Sike of Internal Capital Markets:Divisional Rent-Seeking and Inefficicent Investment显示文摘 Jeremy Stein 2003Journal of Finance2003,55,:1
18Mathematical models of binary spherical-motion encoders显示文摘David Stein Gregory S Chirikjian 2003IEEE/ASME Transactions on Mechatronics2003,8,2:1
19Herd behavior and investment显示文摘 David S Stein Jeremy C 1990American Economic Review1990,80,:1
20RAGE Drives the Development of Glomerulosclerosis and Implicates Podocyte Activation in the Pathogenesis of Diabetic Nephropathy显示文摘Thoralf M. Wendt Nozomu Tanji Jiancheng Guo Thomas R. Kislinger Wu Qu Yan Lu Loredana G. Bucciarelli Ling Ling Rong Bernhard Moser Glen S. Markowitz Gunther Stein Angelika Bierhaus Birgit Liliensiek Bernd Arnold Peter P. Nawroth David M. Stern Vivette D. 2003The American Journal of Pathology2003,,4:1
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