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842篇 您的检索式:作者名="Stephens M J"
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1Computed tomography and patient risk:Facts,perceptions and uncertainties显示文摘Since its introduction in the 1970s, computed tomography(CT) has revolutionized diagnostic decision-making. One of the major concerns associated with the widespread use of CT is the associated increased radiation exposure incurred by patients. The link between ionizing radiation and the subsequent development of neoplasia has been largely based on extrapolating data from studies of survivors of the atomic bombs dropped in Japan in 1945 and on assessments of the increased relative risk of neoplasia in those occupationally exposed to radiation within the nuclear industry. However, the association between exposure to low-dose radiation from diagnostic imaging examinations and oncogenesis remains unclear. With improved technology, significant advances have already been achieved with regards to radiation dose reduction. There are several dose optimization strategies available that may be readily employed including omitting unnecessary images at the ends of acquired series, minimizing the number of phases acquired, and the use of automated exposure control as opposed to fixed tube current techniques. In addition, new image reconstruction techniques that reduce radiation dose have been developed in recent years with promising results. These techniques use iterative reconstruction algorithms to attain diagnostic quality images with reduced image noise at lower radiation doses.Stephen P Power Fiachra Moloney Maria Twomey Karl James Owen J O'Connor Michael M Maher 2016World Journal of Radiology2016,8,12:7
2Radial artery access site complications during cardiac procedures,clinical implications and potential solutions: The role of nitric oxide显示文摘Percutaneous coronary intervention for the treatment of coronary artery disease is most commonly performed in the UK through the radial artery,as this is considered to be safer than the femoral approach.However,despite improvements in technology and techniques,complications can occur.The most common complication,arterial spasm,can cause intense pain and,in some cases,procedural failure.The incidence of spasm is dependent on several variables,including operator experience,artery size,and equipment used.An antispasmolytic cocktail can be applied to reduce spasm,which usually includes an exogenous nitric oxide(NO)donor(glyceryl trinitrate).NO is an endogenous local vasodilator and therefore is a potential target for anti-spasm intervention.However,systemic administration can result in unwanted side-effects,such as hypotension.A method that adopts local delivery of NO might be advantageous.This review article describes the mechanisms involved in radial artery spasm,discusses the advantages and disadvantages of current strategies to reduce spasm,and highlight the potential of NO-loaded nanoporous materials for use in this setting.Emma M Coghill Timothy Johnson Russell E Morris Ian L Megson Stephen J Leslie 2020World Journal of Cardiology2020,12,1:4
3Interprofessional, multiple step simulation course improves pediatric resident and nursing staff management of pediatric patients with diabetic ketoacidosis显示文摘AIM To investigate the use of a multidisciplinary, longitudinal simulation to educate pediatric residents and nurses on management of pediatric diabetic ketoacidosis.METHODS A multidisciplinary, multiple step simulation course was developed by faculty and staff using a modified Delphi method from the Pediatric Simulation Center and pediatric endocrinology department. Effectiveness of the simulation for the residents was measured with a pre- and post-test and a reference group not exposed to simulation. A follow up post-test was completed 3-6 mo after the simulation. Nurses completed a survey regarding the education activity. RESULTS Pediatric and medicine-pediatric residents(n = 20) and pediatric nurses(n = 25) completed the simulation course. Graduating residents(n = 16) were used as reference group. Pretest results were similar in the control and intervention group(74% ± 10% vs 76% ± 15%, P = 0.658). After completing the intervention, participants improved in the immediate post-test in comparison to themselves and the control group(84% ± 12% post study; P < 0.05). The 3-6 mo follow up post-test results demonstrated knowledge decay when compared to their immediate post-test results(78% ± 14%, P = 0.761). Residents and nurses felt the interdisciplinary and longitudinal nature of the simulation helped with learning.CONCLUSION Results suggest a multidisciplinary, longitudinal simulation improves immediate post-intervention knowledge but important knowledge decay occurs, future studies are needed to determine ways to decrease this decay.Linnea M Larson-Williams Amber Q Youngblood Dawn Taylor Peterson J Lynn Zinkan Marjorie L White Hussein Abdul-Latif Leen Matalka Stephen N Epps Nancy M Tofil 2016World Journal of Critical Care Medicine2016,5,4:4
4IL 28 B genotype is not useful for predicting treatment outcome in A sian chronic hepatitis B patients treated with pegylated interferon‐α显示文摘Jacinta A Holmes Tin Nguyen Dilip Ratnam Neel M Heerasing Jane V Tehan Sara Bonanzinga Anouk Dev Sally Bell Stephen Pianko Robert Chen Kumar Visvanathan Rachel Hammond David Iser Ferry Rusli William Sievert Paul V Desmond D Scott Bowden Alexander J Thomps 2013J Gastroenterol Hepatol2013,,5:2
5Evidence That the Diabetes Gene Encodes the Leptin Receptor: Identification of a Mutation in the Leptin Receptor Gene in db / db Mice显示文摘Hong Chen Olga Charlat Louis A Tartaglia Elizabeth A Woolf Xun Weng Stephen J Ellis Nathan D Lakey Janice Culpepper Karen J More Roger E Breitbart Geoffrey M Duyk Robert I Tepper Jay P Morgenstern 1996Cell1996,,3:2
6Effect of rapamycin on hepatic osteodystrophy in rats with portasystemic shunting显示文摘瞄准:如果与推延的 portasystemic 有关的 T 房间激活通过 RANKL 依赖的小径引起调停骨破折的骨头损失,学习。如果用 rapamycin 的 T 房间抑制将在老鼠免于骨头损失,我们也调查了。方法:推延的 Portasystemic 在男 Sprague-Dawley 老鼠和 rapamycin 被执行 0.1 mg/kg 被管饲法为 15 wk 管理。老鼠收到了 powderized 食物并且补加喂在骨头作文上阻止营养不良的效果。重量获得和生长在推延的动物在外科以后被恢复。在结束,骨头周转和量的骨头组织学的生物化学的参数被估计。T 房间激活,煽动性的 cytokine 生产,和 RANKL 依赖的小径的标记被测量。另外, IGF-1 和性腺机能减退的角色被调查。结果:推延的 Portasystemic 引起了是 RANKL 独立人士的低周转骨质疏松症。包括 IL-1, IL-6 和 TNFalpha,骨头再吞 cytokine 层次没在浆液和 TNFalpha 被增加, RANKL 表示不起来在 PBMC 调整了。推延的 Portasystemic 增加了传播 CD8+T 房间人口。Rapamycin 减少了传播 CD8+T 房间人口,增加了 CD8+CD25+T 规章的房间人口并且改进了骨头周转的所有参数。结论:推延的 portasystemic 引起的骨质疏松症可以被 rapamycin 部分在肝的骨营养不良的老鼠模型改善。Schalk W van der Merwe Maria M Conradie Robert Bond Brenda J Olivier Elongo Fritz Martin Nieuwoudt Rhena Delport Tomas Slavik Gert Engelbrecht Del Kahn Enid G Shephard Maritha J Kotze Nico P de Villiers Stephen Hough 2006World Journal of Gastroenterology2006,12,28:2
7Chronic pancreatitis显示文摘Joan M Braganza Stephen H Lee Rory F McCloy Michael J McMahon 2011The Lancet . 2011 (9772)2011,,:2
8Effect of donor–recipient HLA matching at HLA A, B, C, and DRB1 on outcomes after umbilical-cord blood transplantation for leukaemia and myelodysplastic syndrome: a retrospective analysis显示文摘Mary Eapen John P Klein Guillermo F Sanz Stephen Spellman Annalisa Ruggeri Claudio Anasetti Maria Brown Richard E Champlin Joan Garcia-Lopez Gareth Hattersely Gesine Koegler Mary J Laughlin Gerard Michel Samir K Nabhan Franklin O Smith Mary M Horowitz Eli 2011Lancet Oncology2011,,13:2
9Cancer Genome Scanning in Plasma: Detection of Tumor-Associated Copy Number Aberrations, Single-Nucleotide Variants, and Tumoral Heterogeneity by Massively Parallel Sequencing显示文摘Chan K C Allen Jiang Peiyong Zheng Yama W L Liao Gary J W Sun Hao Wong John Siu Shing Shun N Chan Wing C Chan Stephen L Chan Anthony T C Lai Paul B S Chiu Rossa W K Lo Y M D 2013Clinical Chemistry2013,,1:2
10Electrospray ionisation-mass spectrometric characterisation of selected anti-psychotic drugs and their detection and determination in human hair samples by liquid chromatography-tandem mass spectrometry显示文摘STEPHEN M C EDMUND J 2000Journal of Chromatography B2000,,740:1
11Predicting the service life of concrete marine structures; an environmental methodology显示文摘Stephen L A Dwayne A J Matthew A M 1998ACI Structural Journal1998,95,1:1
12A New Approach to Low-level Image Processing显示文摘Stephen M Michael J 1997International Journal of Computer Vision1997,23,1:1
13Computer simulations of electrokinetic injection techniques in microfluidic devices 显示文摘Sergey V E Stephen C J Ramsey J M 2000Anal Chem2000,72,15:1
14The potential to mitigate global warming with no-tillage management is only realized when practised in the long term显示文摘Six J Stephen M O Breidt F J 2004Global Change Biology2004,10,2:1
15Clinical presentation and pre-mortem diagnosis of variant Creutzfeldt-Jakob disease associated with blood transfusion: a case report显示文摘Stephen J Wroe Suvankar Pal Durrenajaf Siddique Harpreet Hyare Rebecca Macfarlane Susan Joiner Jacqueline M Linehan Sebastian Brandner Jonathan DF Wadsworth Patricia Hewitt John Collinge 2006The Lancet2006,,9552:1
16Water-holding by di- etary fibre in vitro and its relationship to faecal output in man 显示文摘STEPHEN A M CUMMINGS J H 1979Gut1979,20,:1
17Association mapping in structured popula-tions显示文摘PRITCHARD J K STEPHENS M ROSENBERG NA 2000Am J Hum Genet2000,67,1:1
18Determination of Absolute Configuration Using Ab Initio Calculation of Optical Rotation显示文摘STEPHENS P J DEVLIN F J CHEESEMAN J R FRISCH M J 2003Chirality2003,15,:1
19Epigeneticevents underlie‘pathogenesis of sinonasal papillomas显示文摘STEPHEN J K VAUGHT L E CHEN K M 2007Modern Pathology2007,20,:1
20In situ investigation of the calcium-induced proteolytic and salting-in mechanisms causing tenderization in calcium-enhanced muscle显示文摘Lawrance T E Dikeman M E Stephens J W 2003Meat Sci2003,66,:1
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