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1506篇 您的检索式:作者名="Franks W"
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1Sharing Clinical Trial Data: A Proposal from the International Committee of Medical Journal Editors显示文摘The International Committee of Medical Journal Editors (ICMJE) believes that there is an ethical obligation to responsibly share data generated by interventional clinical trials because participants have put themselves at risk.In a growing consensus,many funders around the world-foundations,government agencies,and industry-now mandate data sharing.Here,we outline ICMJE's proposed requirements to help meet this obligation.We encourage feedback on the proposed requirements.Anyone can provide feedback at www.icmje.org by April 18,2016.Darren B Taichman Joyce Backus Christopher Baethge Howard Bauchner Peter W de Leeuw Jeffrey M Drazen John Fletcher Frank Frizelle Irish Groves Abraham Haileamlak Astrid James Christine Laine Larry Peiperl Anja Pinborg Peush Sahni Si-Nan Wu 2016Chinese Medical Journal2016,,2:20
2Pain sensation in pancreatic diseases is not uniform: The different facets of pancreatic pain显示文摘AIM: To systematically characterize specific pain patterns in the most frequent pancreatic diseases.METHODS: Pain in patients with chronic pancreatitis(n = 314), pancreatic cancer(n = 469), and other pancreatic tumors(n = 249) including mucinous(n = 20) and serous cystadenoma(n = 31), invasive(n = 37) and non-invasive intraductal papillary mucinous neoplasia(IPMN; n = 48), low stage(n = 18) and high stage neuroendocrine neoplasia(n = 44), and ampullary cancer(n = 51) was registered and correlated with clinicopathological data. Survival times were estimated by the Kaplan-Meier method. Patients alive at the follow-up time were censored. Survival curves were compared statistically using the log-rank test.RESULTS: Forty-nine point one percent of pancreatic cancer patients revealed no pain, whereas in chronic pancreatitis only 18.3% were pain free. In contrary, moderate/severe pain was registered in 15.1% in pancreatic cancer patients that was increased in chronic pancreatitis with up to 34.2%. Serous cystadenoma was asymptomatic in most cases(58.1%), whereas 78.9% of all mucinous cystadenoma patients suffered pain. In neuroendocrine neoplasia pain was not a key clinical symptom since 64% of low stage neuroendocrine neoplasia and 59% of high stage neuroendocrine neoplasia patients were pain free. Cancer localization in the pancreatic body and patients with malignant pancreatic neoplasms were associated with more severe pain. Tumor grading and stage did not show any impact on pain. Only in pancreatic cancer, pain was directly associated with impaired survival.CONCLUSION: Pancreatic pain depicts different patterns of abdominal pain sensation according to the respective pancreatic disorder and does not allow a unification of the term pancreatic pain.Jan G D'Haese Mark Hartel Ihsan Ekin Demir Ulf Hinz Frank Bergmann Markus W Büchler Helmut Friess Güralp O Ceyhan 2014World Journal of Gastroenterology2014,20,27:8
3睾丸主要血管或睾丸网旁取精点与取精成功率不具显著相关性:以220例非梗阻性无精子症患者行传统或显微睾丸取精术为例显示文摘采用传统与显微睾丸取精术相结合方式对220例梗阻性无精症患者行精子提取术,如果传统手术方式未见精子即为阴性取精位点,然后选取2—3个阴性取精位点行显微睾丸取精术。术中通过手术显微镜评价睾丸血管系统,同时记录阳性取精位点与睾丸血供的关系。总的精子获取率为58-2%,早期应用传统手术方式精子获取率为46.8%,而后行显微睾丸取精术则精子获取率增加11.7%。故显微睾丸取精术的应用可显著增加精子获取率(P=0.017),且在睾丸网或睾丸主要血管处并不能显著增加阳性取精位点。J Ullrich Schwarzer Heiko Steinfatt Heiko Steinfatt Manfred Schleyer Frank M Kōhn Klaus Fiedler2, Irene von Hertwig Gottfried Krüsmann Wolfgang Würfel 2013Asian Journal of Andrology2013,15,6:5
4Emission properties of nanolasers during the transition to lasing显示文摘This review addresses ongoing discussions involving nanolaser experiments,particularly those related to thresholdless lasing or few-emitter devices.A quantum-optical(quantum-mechanical active medium and radiation field)theory is used to examine the emission properties of nanolasers under different experimental configurations.The active medium is treated as inhomogeneously broadened semiconductor quantum dots embedded in a quantum well,where carriers are introduced via current injection.Comparisons are made between a conventional laser and a nanolaser with a spontaneous emission factor of unity,as well as a laser with only a few quantum dots providing the gain.It is found that the combined exploration of intensity,coherence time,photon autocorrelation function and carrier spectral hole burning can provide a unique and consistent picture of nanolasers in the new regimes of laser operation during the transition from thermal to coherent emission.Furthermore,by reducing the number of quantum dots in the optical cavity,a clear indication of non-classical photon statistics is observed before the single-quantum-dot limit is reached.Weng W Chow Frank Jahnke Christopher Gies 2014Light(Science & Applications)2014,3,1:5
5Coxsackievirus mutants that can bypass host factor PI4KIIIβ and the need for high levels of PI4P lipids for replication显示文摘Hilde M van der Schaar Lonneke van der Linden Kjerstin H W Lanke Jeroen R P M Strating Gerhard Purstinger Erik de Vries Cornelis A M de Haan Johan Neyts Frank J M van Kuppeveld 2012Cell Research2012,22,11:3
6Diagnostic accuracy of tests for Helicobacter pylori in an Alaska Native population显示文摘AIM:To evaluate the accuracy of two non-invasivetests in a population of Alaska Native persons. Highrates of Helico bacter pylori(H. pylori) infection,H. pylori treatment failure,and gastric cancer in this population necessitate documentation of infection status atmultiple time points over a patient's life.METHODS:In 280 patients undergoing endoscopy,H. pylori was diagnosed by culture,histology,rapidurease test,13C urea breath test(UBT) ,and immuno-globulin G antibodies to H. pylori in serum. The performances of 13C-UBT and antibody test were compared to a gold standard defined by a positive H. pylori testby culture or,in case of a negative culture result,bypositive histology and a positive rapid urease test.RESULTS:The sensitivity and specificity of the 13C-UBT were 93% and 88%,respectively,relative to thegold standard. The antibody test had an equivalents ensitivity of 93% with a reduced specificity of 68%.The false positive results for the antibody test were as-sociated with previous treatment for an H. pylori infection [relative risk(RR) = 2.8]. High levels of antibodiesto H. pylori were associated with chronic gastritis and male gender,while high scores in the 13C-UBT testwere associated with older age and with the H. pyloribacteria load on histological examination(RR = 4.4) .CONCLUSION:The 13C-UBT out performed the anti-body test for H. pylori and could be used when a non-invasive test is clinically necessary to document treatment out come or when monitoring for reinfection.Dana L Bruden Michael G Bruce Karen M Miernyk Julie Morris Debby Hurlburt Thomas W Hennessy Helen Peters Frank Sacco Alan J Parkinson Brian J McMahon 2011World Journal of Gastroenterology2011,17,42:3
7Cholangiocarcinoma, gone without the Wnt?显示文摘Cholangiocarcinoma(CCA) is a relatively rare malignancy of the intra- or extra-hepatic bile ducts that is classified according to its anatomical localization as intrahepatic, perihilar or distal. Overall, CCA has a dismal prognosis due to typical presentation at an advanced irresectable stage, lack of effective non-surgical treatments, and a high rate of disease recurrence. CCA frequently arises on a background of chronic liver inflammation and cholestasis. Chronic inflammation is accompanied by enhanced cell turnover with generation of additional inflammatory stimuli, and a microenvironment rich in pro-inflammatory mediators and proliferative factors that enable accumulation of mutations, transformation and expansion of mutated cells. A recent study by Boulter et al implicates the Wnt signaling cascade in cholangiocarcinogenesis. Wnt ligands Wnt7 B and Wnt10 A were found to be highly overexpressed in human CCA tissue. Wnt7 B protein was present throughout the tumor stroma, and often co-localized with a subset of CD68+ macrophages. To address in a direct manner whether Wnt signaling is engaged in development of CCA, Boulter et al explored the Wnt signaling pathway in an experimental model that recapitulates the multi-stage progression of human CCA.Wnt ligands found to be elevated in human CCA were also upregulated during the course of CCA development following thioacetamide treatment. Wnt10 a increased during the(pre-cancerous) regenerative phase, while Wnt7 b induction paralleled tumor growth. Along with upregulation of target genes, the findings demonstrate that the canonical Wnt pathway is progressively activated during cholangio-carcinogenesis. Macrophage depletion,eliminating a major source of Wnt7 b, prevented activation of the canonical Wnt cascade, and resulted in reduced number and volume of tumors in this model. Moreover,specific inhibitors of the canonical Wnt pathway(ICG-001 and C-59) caused reduction of tumor area and number,in xenograft and thioacetamide models of CCA. The aggregated findings show that experimental, and presumably human CCA, is a Wnt-driven tumor. Modulation of Wnt signaling, alone or in combination with surgicalor chemotherapy approaches, holds promise in the management of this fatal malignancy.Anne T R Noll Thorsten Cramer Steven W M Olde Damink Frank G Schaap 2016World Journal of Hepatology2016,8,26:3
8Emission from quantum-dot high-β microcavities: transition from spontaneous emission to lasing and the effects of superradiant emitter coupling显示文摘Measured and calculated results are presented for the emission properties of a new class of emitters operating in the cavity quantum electrodynamics regime.The structures are based on high-finesse GaAs/AlAs micropillar cavities,each with an active medium consisting of a layer of InGaAs quantum dots(QDs)and the distinguishing feature of having a substantial fraction of spontaneous emission channeled into one cavity mode(highβ-factor).This paper demonstrates that the usual criterion for lasing with a conventional(lowβ-factor)cavity,that is,a sharp non-linearity in the input–output curve accompanied by noticeable linewidth narrowing,has to be reinforced by the equal-time second-order photon autocorrelation function to confirm lasing.The paper also shows that the equal-time second-order photon autocorrelation function is useful for recognizing superradiance,a manifestation of the correlations possible in high-βmicrocavities operating with QDs.In terms of consolidating the collected data and identifying the physics underlying laser action,both theory and experiment suggest a sole dependence on intracavity photon number.Evidence for this assertion comes from all our measured and calculated data on emission coherence and fluctuation,for devices ranging from light-emitting diodes(LEDs)and cavity-enhanced LEDs to lasers,lying on the same two curves:one for linewidth narrowing versus intracavity photon number and the other for g(2)(0)versus intracavity photon number.Sören Kreinberg Weng W Chow Janik Wolters Christian Schneider Christopher Gies Frank Jahnke Sven Höfling Martin Kamp Stephan Reitzenstein 2017Light(Science & Applications)2017,6,1:2
9Identification of protein IT of the intestinal cytoskeleton as a novel type I cytokeratin with unusual properities and expression patterns显示文摘Moll R Schiller D L Franke W W 1990J Cell Biol1990,111,2:2
10The herpes simplex virus proeapsid: structure, conformational changes upon maturation, and roles of the triplex proteins VP19c and VP23 in assembly显示文摘Benes L T Frank P B William W 1996J MoL BioL1996,263,:1
11Motor Learning of a Dynamic Balancing Task After Stroke:Implicit Implications for Stroke Rehabilitation显示文摘Alison J Otrell Frank F Eves Rich S W Masters 2006Physical Theropy2006,3,86:1
12Multi-objective conditioning of a simple SVAT model显示文摘Franks S W Beven K J Gash H C 1999Hydrology and Earth System Sciences1999,3,4:1
13MR-guided interstitial laser-induced thermotherapy of hepatic metastasis combined with arterial blood flow reduction:technique and first clinical results in an open MR system显示文摘Frank K W Klaus R Jorg P R 2001JMRI2001,13,:1
14Chronic alcoholism causes deleterious conditioning of innate immnnity显示文摘Frank J Witte K Schrodl W 2004Alcohol Alcohol2004,9,35:1
15Oral N-carbamylglu- tamate supplementation inereases protein synthesis in skeletal muscle of piglets显示文摘Frank J W Escobar J Nguyen H V 2007J Nutr2007,137,2:1
16Reliability and va lidity of the combined heart rate and movement sensor Actiheart 显示文摘BRAGE S BRAGE N FRANKS P W 2005Eur J Clin Nutrit2005,59,4:1
17Catching up and Convergence: Long- run Growth in East Asia 显示文摘Hsiao Frank S T Hsiao Mei - Chu W 2004Review of Development Economics2004,8,2:1
18Design Strategies for Stray Inductance optimized Wire-Bond Power Modules显示文摘Ole Muhlfeld W-Toke Franke Friedrich W Fuchs 2010PCIM2010,,:1
19The effects of thermal environment and spray-dried plasma on the acute-phase re- sponse of pigs challenged with lipopolysac-charide 显示文摘Frank J W Carroll J A Allee G L 2001Anim Sci2001,81,5:1
20Physiological rise in plasma leucine stimulates muscle protein synthesis in neonatal pigs by enhancing translation initiation factor activation显示文摘Escobar J Frank J W Suryawan A 2005American Journal of PhysiologFEndocrinology and Metabolism2005,288,:1
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