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| 1 | Passive expansion of sub-maximally dilated transjugular intrahepatic portosystemic shunts and assessment of clinical outcomes显示文摘AIM To assess for passive expansion of sub-maximally dilated transjugular intrahepatic portosystemic shunts(TIPS) and compare outcomes with maximally dilated TIPS.METHODS Polytetrafluoroethylene covered TIPS(Viatorr) from July 2002 to December 2013 were retrospectively reviewed at two hospitals in a single institution. Two hundred and thirty patients had TIPS maximally dilated to 10 mm(m TIPS), while 43 patients who were at increased risk for hepatic encephalopathy(HE), based on clinical evaluation or low pre-TIPS portosystemic gradient(PSG), had 10 mm TIPS sub-maximally dilated to 8 mm(sm TIPS). Group characteristics(age, gender, Model for End-Stage Liver Disease score, post-TIPS PSG and clinical outcomes were compared between groups, including clinical success(ascites or varices), primary patency,primary assisted patency, and severe post-TIPS HE. A subset of fourteen patients with sm TIPS underwent follow-up computed tomography imaging after TIPS creation, and were grouped based on time of imaging(< 6 mo and > 6 mo). Change in diameter and crosssectional area were measured with 3D imaging software to evaluate for passive expansion.RESULTS Patient characteristics were similar between the sm TIPS and m TIPS groups, except for pre-TIPS portosystemic gradient, which was lower in the sm TIPS group(19.4 mm Hg ± 6.8 vs 22.4 mm Hg ± 7.1, P = 0.01). Primary patency and primary assisted patency between sm TIPS and m TIPS was not significantly different(P = 0.64 and 0.55, respectively). Four of the 55 patients(7%) with sm TIPS required TIPS reduction for severe refractory HE, while this occurred in 6 of the 218 patients(3%) with m TIPS(P = 0.12). For the 14 patients with follow-up computed tomography(CT) imaging, the median imaging follow-up was 373 d. There was an increase in median TIPS diameter, median percent diameter change, median area, and median percent area change in patients with CT follow-up greater than 6 mo after TIPS placement compared to follow-up within 6 mo(8.45 mm, 5.58%, 56.04 mm^2, and 11.48%, respectively, P = 0.01).CONCLUSION Passive expansion of sm TIPS does occur but clinical outcomes of sm TIPS and m TIPS were similar. Sub-maximal dilation can prevent complications related to overshunting in select patients. | Michael C Hsu Charles N Weber S William Stavropoulos Timothy W Clark Scott O Trerotola Richard D Shlansky Goldberg Michael C Soulen Gregory J Nadolski | 2017 | World Journal of Hepatology2017,9,12: | 11 |
| 2 | Silvicultural alternatives to conventional even-aged forest man-agement-what limits global adoption?显示文摘Background: The development of forestry as a scientific and management discipline over the last two centuries has mainly emphasized intensive management operations focused on increased commodity production, mostly wood. This 'conventional' forest management approach has typically favored production of even-aged, single-species stands. While alternative management regimes have generally received less attention, this has been changing over the last three decades, especially in countries with developed economies. Reasons for this change include a combination of new information and concerns about the ecological consequences of intensive forestry practices and a willingness on the part of many forest owners and society to embrace a wider set of management objectives. Alternative silvicultural approaches are characterized by a set of fundamental principles, including avoidance of clearcutting, an emphasis on structural diversity and small-scale variability, deployment of mixed species with natural regeneration,and avoidance of intensive site-preparation methods.Methods: Our compilation of the authors' experiences and perspectives from various parts of the world aims to initiate a larger discussion concerning the constraints to and the potential of adopting alternative silvicultural practices.Results: The results suggest that a wider adoption of alternative silvicultural practices is currently hindered by a suite of ecological, economic, logistical, informational, cultural, and historical constraints. Individual contexts display their own unique combinations and relative significance of these constraints, and accordingly, targeted efforts, such as regulations and incentives, may help to overcome specific challenges.Conclusions: In a broader context, we propose that less emphases on strict applications of principles and on stand structures might provide additional flexibility and facilitate the adoption of alternative silvicultural regimes in a broader set of circumstances. At the same time, the acceptance of alternative silvicultural systems as the 'preferred or default mode of management' wil necessitate and benefit from the continued development of the scientific basis and valuation of a variety of ecosystem goods and services. This publication is aimed to further the discussion in this context. | Klaus J Puettmann Scott McG Wilson Susan C Baker Pablo J Donoso Lars Dr?ssler Girma Amente Brian D Harvey Thomas Knoke Yuanchang Lu Susanna Nocentini Francis E Putz Toshiya Yoshida Jürgen Bauhus | 2015 | Forest Ecosystems2015,2,2: | 4 |
| 3 | Single vs dual(en bloc) kidney transplants from donors ≤ 5 years of age: A single center experience显示文摘AIM: To compare outcomes between single and dual en bloc(EB) kidney transplants(KT) from small pediatric donors. METHODS: Monocentric nonprospective review of KTs from pediatric donors ≤ 5 years of age. Dual EB KT was defined as keeping both donor kidneys attached tothe inferior vena cava and aorta, which were then used as venous and arterial conduits for the subsequent transplant into a single recipient. Donor age was less useful than either donor weight or kidney size in decision-making for kidney utilization as kidneys from donors < 8 kg or kidneys < 6 cm in length were not transplanted. Post-transplant management strategies were standardized in all patients.RESULTS: From 2002-2015, 59 KTs were performed including 34 dual EB and 25 single KTs. Mean age of donors(17 mo vs 38 mo, P < 0.001), mean weight(11.0 kg vs 17.4 kg, P = 0.046) and male donors(50% vs 84%, P = 0.01) were lower in the dual EB compared to the single KT group, respectively. Mean cold ischemia time(21 h), kidney donor profile index(KDPI; 73% vs 62%) and levels of serum creatinine(SCr, 0.37 mg/d L vs 0.49 mg/d L, all P = NS) were comparable in the dual EB and single KT groups, respectively. Actuarial graft and patient survival rates at 5-years follow-up were comparable. There was one case of thrombosis resulting in graft loss in each group. Delayed graft function incidence(12% dual EB vs 20% single KT, P = NS) was slightly lower in dual EB KT recipients. Initial duration of hospital stay(mean 5.4 d vs 5.6 d) and the one-year incidences of acute rejection(6% vs 16%), operative complications(3% vs 4%), and major infection were comparable in the dual EB and single KT groups, respectively(all P = NS). Mean 12 mo SCr and abbreviated MDRD levels were 1.17 mg/d L vs 1.35 mg/d L and 72.5 m L/min per 1.73 m^2 vs 60.5 m L/min per 1.73 m^2(both P = NS) in the dual EB and single KT groups, respectively. CONCLUSION: By transplanting kidneys from young pediatric donors into adult recipients, one can effectively expand the limited donor pool and achieve excellent medium-term outcomes. | Yousef Al-Shraideh Umar Farooq Hany El-Hennawy Alan C Farney Amudha Palanisamy Jeffrey Rogers Giuseppe Orlando Muhammad Khan Amber Reeves-Daniel William Doares Scott Kaczmorski Michael D Gautreaux Samy S Iskandar Gloria Hairston Elizabeth Brim Margaret Mangus Robert J Stratta | 2016 | World Journal of Transplantation2016,6,1: | 3 |
| 4 | 跨音速转子叶顶泄漏流/主流交界面的前移机制显示文摘采用数值计算和实验研究相结合的方法,研究了跨音速转子叶顶泄漏流与主流交界面轴向位置随流量的变化规律和机制。该跨音转子是美国圣母大学一级半跨音速压气机转子。研究发现机匣壁面脉线分布能够定性反映壁面轴向剪切应力分布,可用来识别叶顶泄漏流与主流的交界面位置。通过机匣壁面的脉线分布,可以看出机匣壁面存在两条零剪切应力线。第一条零剪切应力线表示来流与叶顶泄漏流之间交界面的时间和周向平均轴向位置,在小流量工况下交界面靠近顶部叶片的前缘。计算和实验结果都表明,随着质量流量的减小,叶顶泄漏流与主流交界面的轴向位置不断向叶片前缘移动。在近失速点,交界面到达叶片前缘,泄漏流即将溢出。泄漏流与主流的轴向动量比随流量减小不断增大的变化规律进一步说明,间隙区域泄漏流与主流的轴向动量平衡是导致交界面不断前移直至溢出的内在机制。 | 杜娟 林峰 陈静宜 Mark H Ross Joshua D Cameron Scott C Morris | 2011 | 工程热物理学报2011,32,6: | 3 |
| 5 | 钒微合金化在汽车用先进高强钢中的应用显示文摘回顾了过去10年发表的在扁平材中使用钒微合金化技术所取得的一些进步,并讨论了该技术在汽车用先进高强钢(AHSS)中的应用;探讨了该技术对系列钢种可能带来的益处,这些钢种包括双相(DP)钢、全贝氏体钢、相变诱发塑性(TRIP)钢、孪生诱发塑性(TWIP)钢,并提供了示例。此外,还提出了值得AHSS生产商提供支持、应当持续研究的领域。 | Scott C P Milbourn D Huang M Perrard F | 2013 | 钢铁钒钛2013,34,5: | 2 |
| 6 | Role of microbubble ultrasound contrast agents in the non-invasive assessment of chronic hepatitis C-related liver disease显示文摘长期地感染丙肝病毒的病人经常得长期的肝疾病,对肝损伤的严厉的评价在认为病毒的根除是治疗以前被要求。这篇文章检验从标准答案肝活体检视当前可得到的各种各样的评价方法到血清学的标记和成像。超声是在临床的实践的最广泛地使用的成像形式之一并且已经是为肝疾病的一个首要的诊断工具。Microbubble 超声对比代理人允许更高的分辨率要获得的图象和对要执行的微脉管的变化的功能的评价。在确定的这些代理人的角色肝的损害的状态作为与丙肝在病人决定肝疾病的阶段和等级的一个可行方法被讨论。尽管当前限制了到专家中心,提高对比的超声将不可避免地在临床的背景增加的微水泡的可获得性。 | Scott Grier Adrian KP Lim Nayna Patel Jeremy FL Cobbold Howard C Thomas Isobel J Cox Simon D Taylor-Robinson | 2006 | World Journal of Gastroenterology2006,12,22: | 2 |
| 7 | Freeoelectric memories 显示文摘 | SCOTT J F RAUJO C A P D | 1989 | Science1989,246,: | 2 |
| 8 | Adipocyte iron regulates adiponectin and insulin sensitivity显示文摘 | Gabrielsen J Scott Gao Yan Simcox Judith A Huang Jingyu Thorup David Jones Deborah Cooksey Robert C Gabrielsen David Adams Ted D Hunt Steven C Hopkins Paul N Cefalu William T McClain Donald A | 2012 | EN2012,,10: | 2 |
| 9 | Framework of Success Criteria for Design Build Projects 显示文摘 | A P C Chan D Scott E W M Lam | 2002 | Journal of Management in Engineering2002,18,3: | 1 |
| 10 | The efficacy of spinosad against the western flower thrips,Frankliniella occidentalis,and its impact on associated biological control agents on greenhouse cucumbers in southern Ontario显示文摘 | Jones T Scott D C Harris R | 2005 | Pest Manag Sci2005,61,: | 1 |
| 11 | Infrared optical properties and Ra man spectra of n-pentane and n-pentane-d12 显示文摘 | Keefe C D Scott J F | 2011 | Vibration al Spectroscopy2011,57,1: | 1 |
| 12 | Growth mecha- nisms for single - wall carbon nanotubes a laser ablation process 显示文摘 | Scott C D Arepalli S Nikolaev P | 2002 | Appl Phys a - Mater2002,74,1: | 1 |
| 13 | The genetic control of plant mitochondrial morphology and dynamics显示文摘 | Logan D C Scott I Tobin A K | 2003 | Plant J2003,36,: | 1 |
| 14 | The long-term supply of entrepreneurs: students career aspirations in relation to entrepreneurship 显示文摘 | Scott M C Twomey D F | 1988 | Journal for small Business Management1988,26,4: | 1 |
| 15 | PKI Elliptic Curve Cryptography,and Digital Signatures显示文摘 | William J C Edward P D Scott A R | 1999 | Computers and Security1999,18,: | 1 |
| 16 | Ferroelectric thin films in integrated microelectronic devices 显示文摘 | Scott J F Paz de Araujo C A McMillan L D | 1992 | Ferroelectrics1992,133,: | 1 |
| 17 | Development of coarsegrained facies in lacustrine rift basins, example from East of America 显示文摘 | Scholz C A Rosendahl B R Scott D L | 1990 | Geology1990,18,2: | 1 |
| 18 | Risks Of synchronous gastrointestinal Or biliary surgery with splenectomy for hematologic disease 显示文摘 | Mcaneny D Gtodek C P Scott T E | 1996 | Arch Surg1996,131,3: | 1 |
| 19 | Stem-like cells in bone sarcomas: implications for tumorigenesis显示文摘 | Gibbs C P Kukekov V G Reith J D Tchigrinova O Suslov O N Scott E W | 2005 | Neoplasia2005,7,: | 1 |
| 20 | Effects of commercial processing on the fat-soluble vitamin contentof menhaden sh oil显示文摘 | SCOTT K C LATSHAW J D | 1991 | Journal of American Chemists'' Society1991,68,: | 1 |