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2054篇 您的检索式:作者名="HARVEY J"
    题名 作者 年代 出处 被引量
1Management of femoral neck fractures in the young patient: A critical analysis review显示文摘Femoral neck fractures account for nearly half of all hip fractures with the vast majority occurring in elderly patients after simple falls.Currently there may be sufficient evidence to support the routine use of hip replacement surgery for low demand elderly patients in all but non-displaced and valgus impacted femoral neck fractures.However for the physiologically young patients,preservation of the natural hip anatomy and mechanics is a priority in management because of their high functional demands.The biomechanical challenges of femoral neck fixation and the vulnerability of the femoral head blood supply lead to a high incidence of non-union and osteonecrosis of the femoral head after internal fixation of displaced femoral neck fractures.Anatomic reduction and stable internal fixation are essentials in achieving the goals of treatment in this young patient population.Furthermore,other management variables such as surgical timing,the role of capsulotomy and the choice of implant for fixation remaincontroversial.This review will focus both on the demographics and injury profile of the young patient with femoral neck fractures and the current evidence behind the surgical management of these injuries as well as their major secondary complications.Thierry Pauyo Justin Drager Anthony Albers Edward J Harvey 2014World Journal of Orthopedics2014,5,3:70
2环氧沥青混合料动态模量及其主曲线研究显示文摘为建立大跨径钢桥面铺装所用的热固性环氧沥青混合料动态模量的主曲线方程,首先采用动态频率扫描试验测试了3组不同温度、11个不同加载频率下的环氧沥青混合料动态模量,然后利用时温等效原理和基因遗传算法对不同温度间的动态模量进行了移位分析,最后采用γ分布函数和指数函数对20℃环氧沥青混合料动态模量主曲线方程和不同温度间的动态模量移位因子公式进行了拟合回归。结果表明:环氧沥青混合料的动态模量随温度的升高而降低,在固定温度下随加载频率的减小而减小;10℃和30℃环氧沥青混合料动态模量移至20℃时的最佳移位因子分别为5.002 256和-3.990 583;环氧沥青混合料动态模量主曲线的建立为大跨径钢桥面铺装动态设计方法的形成提供了材料参数方程。罗桑 钱振东 HARVEY J 2010中国公路学报2010,23,6:32
3环氧沥青混合料疲劳衰变特性试验显示文摘为获取钢桥面铺装环氧沥青混合料的疲劳衰变特性,首先基于正交异性桥面板-铺装层组成的复合结构模型,计算出标准胎压、超载50%以及超载100%胎压作用下铺装层的最大拉应变,作为疲劳试验应变水平的选取标准;然后,采用小梁四点弯曲疲劳试验对3组不同温度和不同应变条件下的环氧沥青混合料疲劳性能进行测试;最后,利用威布尔公式对不同温度与应变条件下的环氧沥青混合料疲劳寿命与疲劳裂纹扩展时的作用次数进行预测。结果表明:环氧沥青混合料初始模量大小仅与温度相关,与应变水平无关;在10℃和20℃时,1.38 MPa以下胎压以及30℃时0.7MPa胎压作用500万次均不发生疲劳破坏;30℃时,1.1 MPa和1.38 MPa胎压分别作用66 833次和35 480次出现疲劳损坏现象;相同应变作用下,试验温度越低,小梁疲劳破坏越快;环氧沥青混合料疲劳曲线可明显分为试验设备稳定、疲劳裂缝启裂、疲劳裂缝扩展3个阶段。研究结果可为环氧沥青混合料铺装疲劳寿命预估以及预防性养护提供理论依据。罗桑 钱振东 HARVEY J 2013中国公路学报2013,26,2:19
4新生儿VitK营养状况的研究显示文摘为了通过凝血酶原前体蛋白 (PIVKA- ) ,研究足月新生儿 Vit K的营养状况 ,对 96例健康的足月新生儿脐血 ,采用针对凝血酶原前体蛋白 (PIVKA- )的单克隆抗体酶联免疫吸附法 (EL ISA)进行了凝血酶原前体蛋白检测。结果 :96例新生儿脐血标本中 2 4例凝血酶原前体蛋白 (PIVKA- )阳性 ,检测值高于 0 .15 AU/ ml,阳性率是 2 5 %。范围 0 .170~ 8.86 0 AU/ ml。大约有 2 5 %的新生儿处于 Vit K缺乏状态。张会丰 阎华 田秀巧 安秀书 刘岩平 范士英 Julia Harvey Martin J Shearer 陈连元 2000中国妇幼保健2000,15,8:9
5Cytoreductive surgery and intraperitoneal chemotherapy for colorectal peritoneal metastases显示文摘AIM:To systematically review the available evidence regarding cytoreductive surgery(CRS) and intraperitoneal chemotherapy(IPC) for colorectal peritoneal metastases(CPM).METHODS:An electronic literature search was carried out to identify publications reporting oncological outcome data(overall survival and/or disease free survival and/or recurrence rates)following CRS and IPC for treatment of CPM.Studies reporting outcomes following CRS and IPC for cancer subtypes other than colorectal were only included if data were reported independently for colorectal cancer-associated cases;in addition studies reporting outcomes for peritoneal carcinomatosis of appendiceal origin were excluded.RESULTS:Twenty seven studies,published between1999 and 2013 with a combined population of 2838patients met the predefined inclusion criteria.Included studies comprised 21 case series,5 case-control studies and 1 randomised controlled trial.Four studies provided comparative oncological outcome data for patients undergoing CRS in combination with IPC vs systemic chemotherapy alone.The primary indication for treatment was CPM in 96%of cases(2714/2838)and recurrent CPM(rCPM)in the remaining 4%(124/2838).In the majority of included studies(20/27)CRS was combined with hyperthermic intraperitoneal chemotherapy(HIPEC).In 3 studies HIPEC was used in combination with early post-operative intraperitoneal chemotherapy(EPIC),and 2 studies used EPIC only,following CRS.Two studies evaluated comparative outcomes with CRS+HIPEC vs CRS+EPIC for treatment of CPM.The delivery of IPC was performed using an'open'or'closed'abdomen approach in the included studies.CONCLUSION:The available evidence presented in this review indicates that enhanced survival times can be achieved for CPM after combined treatment with CRS and IPC.Reza Mirnezami Brendan J Moran Kate Harvey Tom Cecil Kandiah Chandrakumaran Norman Carr Faheez Mohamed Alexander H Mirnezami 2014World Journal of Gastroenterology2014,20,38:6
6基于非局部损伤的环氧沥青混凝土疲劳裂缝仿真(英文)显示文摘基于连续介质损伤力学理论,以环氧沥青混凝土的疲劳开裂过程为研究对象,建立了梯度增强的非局部损伤模型用于表征材料的疲劳损伤,并进行有限单元数值格式化;利用FEAP有限元软件仿真分析了环氧沥青混凝土在不同温度(10℃、20℃、30℃)、加载应变与饱水状态下小梁试件的四点弯曲疲劳试验。室内疲劳试验结果与仿真结果具有很好的一致性,表明所构建的梯度增强非局部损伤模型具有很好的可靠性。通过疲劳试验数据,回归拟合出不同温度与饱水状态下的环氧沥青混凝土的疲劳损伤参数,为环氧沥青混凝土材料在路面结构中的疲劳特性研究提供了基础材料参数。研究成果为沥青混凝土类材料的疲劳特性研究与性能设计提供了依据与借鉴。罗桑 钱振东 陆庆 HARVEY J 2016中国公路学报2016,29,7:5
7Silvicultural 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 2015Forest Ecosystems2015,2,2:4
8晚发型VitK缺乏性出血高发区孕妇及新生儿VitK状况的研究显示文摘研究晚发型VitK缺乏性出血高发地区孕妇及其新生儿的VitK营养状况。山东省栖霞县是迄今为止晚 发型VitK缺乏性出血发病率最高的地区。采用凝血酶原前体蛋白(PIVKA-Ⅱ)的ELISA法测定了栖霞县76名健康孕 妇及其新生儿血清凝血酶原前体蛋白(PIVKA-Ⅱ)水平。结果显示:孕妇凝血酶原前体蛋白阳性率为31.58%;新生儿为 55.26%。凝血酶原前体蛋白阳性孕妇,其新生儿凝血酶原前体蛋白阳性的几率为70.83%。凝血酶原前体蛋白同时阳性 的17例孕妇及其新生儿中,孕妇和新生儿水平有相关性(相关系数为0.526,P<0.05)。母亲凝血酶原前体蛋白阴性,其 新生儿阳性的几率为48.08%。提示:当孕妇有亚临床VitK缺乏时,其分娩的新生儿大部分将发生VitK缺乏。孕妇VitK 缺乏会导致新生儿VitK缺乏。即使孕产妇不存在亚临床VitK缺乏,由于胎盘屏障的作用,仍有48.08%的新生儿会发 生亚临床VitK缺乏。张会丰 王小康 李伟 李芳 李根山 贾俊娟 吕志华 林秀芝 李华忠 刘秀萍 Shearer MJ Harvey J 2001中国妇幼保健2001,16,10:4
9Positron emission tomography scanning in the evaluation of hepatocellular carcinoma显示文摘M.Akram Khan Connie S Combs Elizabeth M Brunt Val J Lowe Michael K Wolverson Harvey Solomon Brian T Collins Adrian M.Di Bisceglie 2000Journal of Hepatology2000,,5:2
10Molecular cytogenetic analysis reveals sequence differences between the sex chromosomes of Oreochromis niloticus: evidence for an early stage of sex-chromosome differentiation 显示文摘Harvey S C Masabanda J Carrasco L A 2002Cytogenet Gen Res2002,79,:1
11Hormone-regulated genes-(pS2,PIP,FAS) in breast cancer and nontumoral mammary tissue显示文摘 Harvey J Robbins P 1995Pathobiology,1995,62,:1
12Isomniac's attributions:psychometric properties of the dysfunctinal beliefs and attitudes about sleep scale and the sleep disturbance questionnaire显示文摘Espie C A Inglis S J Harvey L 2000Journal of Psychosomatic Research2000,48,:1
13Leptin activates ATP-sensitive potassium channels in the rat insulin-secreting cell line,CRI-G显示文摘HARVEY J MCKENNA F HERSON P S 1997J Physiol1997,504,3:1
14Helical CT pneumocolon to assess colonic tumors: radiologic-pathologic correlation 显示文摘Harvey C J Amin Z Hare CM 1998A JR1998,170,6:1
15Photodynamic therapy induces rapid cell death by apoptosis in LS178Y mouse lymphoma cells显示文摘Agarwal ML Clay ME Harvey E J 1991Cancer Res1991,51,21:1
16Prognostic and predictive factors in breast cancer by immunohistochemical analysis显示文摘ALLRED D C HARVEY J M BERARDO M 1998Mod Pathol1998,11,2:1
17Lack of efficacy of long-term,low-dose azithromycin in chronic rh- inosinusitis: a randomized controlled trial 显示文摘VIDELER WJ BADIA L HARVEY R J 2011Allergy2011,66,11:1
18The metal complexes of N - confused porphyrin as heme model compounds 显示文摘Harvey J D Ziegler C J 2006Journal of Inorganic Biochemistry2006,100,4:1
19Physically-based network modeling of multiphase flow in intermedia-wet porous media 显示文摘Martin J Blunt Harvey Scher 1998Joumal of Petroleum Science and Engineering1998,20,34:1
20Guidelines for the management of spontaneous pneumothorax显示文摘Henry M Arnold T Harvey J 2008Thorax2008,58,11:1
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