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2276篇 您的检索式:作者名="Freund"
    题名 作者 年代 出处 被引量
1Extending the functions of the homeotic transcription factor Cdx2 in the digestive system through nontranscriptional activities显示文摘The homeoprotein encoded by the intestinal-specific Cdx2 gene is a major regulator of gut development and homeostasis,also involved in colon cancer as well as in intestinal-type metaplasias when it is abnormally expressed outside the gut.At the molecular level,structure/function studies have demonstrated that the Cdx2 protein is a transcription factor containing a conserved homeotic DNA-binding domain made ofthree alpha helixes arranged in a helix-turn-helix motif,preceded by a transcriptional domain and followed by a regulatory domain.The protein interacts with several thousand sites on the chromatin and widely regulates intestinal functions in stem/progenitor cells as well as in mature differentiated cells.Yet,this transcription factor also acts trough original nontranscriptional mechanisms.Indeed,the identification of novel protein partners of Cdx2 and also of a splicing variant revealed unexpected functions in the control of signaling pathways like the Wnt and NF-k B pathways,in double-strand break DNA repair and in premessenger RNA splicing.These novel functions of Cdx2 must be considered to fully understand the complexity of the role of Cdx2 in the healthy intestine and in diseases.Jean-Noel Freund Isabelle Duluc Jean-Marie Reimund Isabelle Gross Claire Domon-Dell 2015World Journal of Gastroenterology2015,21,5:5
2R134a在板式换热器中的凝结换热实验研究显示文摘本文对R134a在板式换热器内的凝结换热特性进行了实验研究,通过测量换热器中冷却水及板壁温度获得了局部凝结换热系数随蒸气干度、质量流量及热流密度的变化关系.实验结果表明,凝结换热系数随着蒸气干度增加而增加.文章还将实验结果与部分文献数据进行了比较与分析.本文的研究为换热准则关系式的发展提供了实验数据.龙从勇 S Freund S Kabelac 罗行 2008工程热物理学报2008,29,2:4
3岩石破裂以及破裂前信号的演变显示文摘地震是大量的岩石破裂事件。很多大地震之前都存在瞬态信号:电磁信号、磁场变化、电离层扰动、土壤导电率的变化以及其他震前信号。令监测人员奇怪的是,在震前短时间内一些震前信号会衰弱甚至消失不见。岩石中应力活化电流的发现提供了一个可能的解释,应力能够激活岩石中的移动电荷载体,即电子空位缺陷(electron va-cancy defects,EVD),也称空穴,用h.表示。h.相当于O2-中的O-,且以电钝性及休止的状态存在于无应力岩石中。当被激活时,h.沿着应力梯度方向流动,从而产生电流。在非常高的应力速率下,位错累积成微破裂,这正是灾变破裂的开始。当h.电荷载体无法再被激活时,震前破裂信号会明显衰弱。Freund F T Dahlgren R P Chu J j 张祯(译) 田家勇(校) 2011国际地震动态2011,,1:4
4Challenges in the conduct of randomised controlled trials in cardiogenic shock complicating acute myocardial infarction显示文摘Cardiogenic shock(CS)following acute myocardial infarction(AMI)is a major challenge in cardiovascular care.Mortality remains high with 40%-50%after thirty days.Randomised controlled trials(RCTs)play a key role to generate evidence on optimal care in this field.However,the number of completed or ongoing RCTs is still relatively low compared to the gaps in evidence.Challenges in the conduct of these trials are in particular the selection of patients and ethical issues in the informed consent process.When determining eligibility criteria,special attention should be paid to the severity of CS,to the inclusion of patients with cardiac arrest and to potential age limits.Median age of AMI-CS patients is increasing.Age limits are therefore controversial as it is important to include elderly patients in RCTs in order to make the results generalisable and to address the special needs of this group.As patients with AMI-CS are in most cases unable to provide informed consent themselves,a step-wise approach with acute consent by a legal representative or independent physicians and later informed consent by the patient if possible might be established depending on regularities of the respective ethical review board and country legislation.Multicenter studies should be sought to generate adequate power.Anne Freund Steffen Desch Holger Thiele 2022Journal of Geriatric Cardiology2022,19,2:2
5Fluctuation pressure on a bio-membrane confined within a parabolic potential well显示文摘A compliant bio-membrane with a nominally flatreference configuration is prone to random transverse deflec-tions when placed in water, due primarily to the Brownianmotion of the water molecules. On the average, these fluc-tuations result in a state of thermodynamic equilibrium be-tween the entropic energy of the water and the total free en-ergy of the membrane. When the membrane is in close prox-imity to a parallel surface, that surface restricts the fluctua-tions of the membrane which, in turn, results in an increasein its free energy. The amount of that increase depends onthe degree of confinement, and the resulting gradient in freeenergy with degree of confinement implies the existence ofa confining pressure. In the present study, we assume thatthe confinement is in the form of a continuous parabolic po-tential well resisting fluctuation. Analysis leads to a closedform expression for the mean pressure resulting from thisconfinement, and the results are discussed within the broadercontext of results in this area. In particular, the results pro-vide insights into the roles of membrane stiffness, number ofdegrees of freedom in the model of the membrane and othersystem parameters.L. B. Freund 2012Acta Mechanica Sinica2012,28,4:2
6Cdx2 Controls Expression of the Protocadherin Mucdhl, an Inhibitor of Growth and β-Catenin Activity in Colon Cancer Cells显示文摘Isabelle Hinkel Isabelle Duluc Elisabeth Martin Dominique Guenot Jean–Noel Freund Isabelle Gross 2012Gastroenterology2012,,4:2
7Nonliner theory of the Free electron laser based upon a coaxial hybrid wiggler显示文摘Freund H P Jackson R H Pershing D E 1994Phys Plasmas1994,1,4:2
8A Decision-Theoretic Generalization of On-Line Learning and an Application to Boosting显示文摘Yoav Freund Robert E Schapire 1997Journal of Computer and System Sciences1997,,1:2
9Inflammatory bowel disease in rats:Bacterial and chemical interaction显示文摘AIM: To develop a novel model of colitis in rats, using a combination of iodoacetamide and enteropathogenic E. coli (EPEC), and to elucidate the pathophysiologic processes implicated in the development of ulcerative colitis (UC). METHODS: Male Sprague-Dawley rats (n = 158) were inoculated intrarectally on a weekly basis with 4 different combinations: (a) 1% methylcellulose (MC), (b) 100 μL of 6% iodoacetamide (IA) in 1% MC, (c) 200 μL containing 4 × 108 colony factor units (CFU) of EPEC, and (d) combined treatment of (IA) followed by bacteria (B) after 2 d. Thirty days post treatment, each of the four groups was divided into two subgroups; the inoculation was stopped for one subgroup and the other subgroup continued with biweekly inoculation until the end of the experiment. Colitis was evaluated by the clinical course of the disease, the macroscopic and microscopic alterations, activity of myeloperoxidase (MPO), and by TNF-α gene expression. RESULTS: Findings indicative of UC were seen in the combined treatment (IA + B) as well as the IA conti-nued treatment groups: the animals showed slow rate of increase in body weight, diarrhea, bloody stools, high colonic ulcer score, as well as histological altera- tions characteristic of UC, with an extensive inflamma- tory reaction. During the course of the experiment, the MPO activity was consistently elevated and the TNF-α gene expression was upregulated compared to the control animals. CONCLUSION: The experimental ulcerative colitis model used in the present study resembles, to a great extent, the human disease. It is reproducible with characteristics indicative of chronicity.Inaya Abdallah Hajj Hussein Rania Tohme Kassem Barada Mostafa Hassan Mostafa Jean-Noel Freund Rosalyn A Jurjus Walid Karam Abdo Jurjus 2008World Journal of Gastroenterology2008,14,25:2
10Selective vulnerability of the hippocampus in brain ischemia显示文摘Schmidt-Kastner R Freund TF 1991Neurosci1991,40,:2
11刑法以及保安与矫正处分法中所涉及的国家强制措施的相对人所具有的危险和危险性——在法学理论中和法律实践中反对刑罚一元体系显示文摘国家法律制度采取多种不同的措施来保护公民的合法利益:制定行为规范、设置刑罚和保安与矫正处分。如果没有对各种措施的具体特性以及(预防什么样的危险)目的进行斟酌,而不加以区别地使用是十分危险的。根据法治国家原则(Rechtsstaat—nzip)中对于各项措施特性的要求,我们可以确定上述各种措施的适用范围。这篇文章中还包括一份欧洲人权法院2009年12月17日的判决。Georg Freund 张正宇 2014研究生法学2014,29,5:2
12A decision-theoretic generalization of on-line learning and application to boosting显示文摘Freund Y Schapire R 1997Journal of Computer and System Sciences1997,55,1:1
13A criterion for arrest of a threading dislocation in a strained epitaxial layer due to an interface misfit dislocation in its path显示文摘Freund L B 1990Journal of Applied Physics1990,68,5:1
14A decision-theoretic generalization of on-line learning and an application to boosting 显示文摘Freund Y Schapire R E 1997Journal of Computer and System Sciences1997,55,1:1
15A Decision-Theoretic Generalization of On-Line Learning and an Application to Boosting显示文摘Freund Y Schapire R E 1997Journal of Computer and System Sciences1997,55,1:1
16Carbons as supports for industrial precious metal catalysts 显示文摘Auer E Freund A Pietsch J 1998Applied Catalysis A : General1998,173,2:1
17Three-dimensional nonlinear analysis of free-electron-laser amplifiers with planar wigglers显示文摘Freund H P 1987Phy Rev A1987,36,5:1
18A decision-theoretic generalization of on-line learning and an application to boosting显示文摘Freund Y Schapire R E 1997Journal of Computer and System Sciences1997,55,1:1
19Connective tissue polarity: optical second harmonic microscopy, crossed-beam summation, and small-angle scattering in rat-tail tendon显示文摘Freund I Deutsch M Sprecher A 1986Biophys1986,50,:1
20Type 3 neovascularization : The expanded spectrum of retinal angiomatous proliferation 显示文摘Freund KB Ho IV Barbazetto IA 2008Retina2008,28,2:1
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