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| 1 | 循证指南:弥散和灌注MRI在急性缺血性卒中诊断中的作用美国神经病学学会治疗和技术评价委员会的报告显示文摘目的 评价弥散加权成像(diffusion-weighted imaging,DWI)和灌注加权成像(perfusionweighted imaging PWI)在急性缺血性卒中患者诊断中应用的证据.方法 对1966年至2008年1月期间有关DWI和PWI诊断和预后价值的文献进行系统分析.结果和推荐 对于发病12 h内的急性缺血性卒中的诊断,DWI已被确认为有效的评价手段,且其诊断价值应高于非增强CT.为了最准确地诊断急性缺血性卒中,应进行DWI(A级推荐);然而,在疑似急性卒中患者的总体样本中,DWI诊断缺血性卒中的敏感性并不完美.DWI诊断脑出血的准确性不在本指南的范围之内.根据Ⅱ级和Ⅲ级证据,基线DWI体积可预测前循环卒中的基线卒中严重程度(B级推荐),但不能预测椎基底动脉系统卒中的基线卒中严重程度(C级推荐).基线DWI病变体积可预测(最终)梗死体积(B级推荐),并且有可能预测早期和远期临床转归(C级推荐).与DWI相比,基线PWI体积预测基线卒中严重程度的价值较小(C级推荐).尚无足够的证据支持或反对PWI在急性缺血性卒中诊断中的价值(U级推荐). | P.D. Schellinger R.N. Bryan L.R. Caplan J.A. Detre R.R. Edelman C. Jaigobin C.S. Kidwell J.P. Mohr M. Sloan A.G. Sorensen S. Warach 章娟娟(译) 王国颖(译) 汪凯(译) | 2010 | 国际脑血管病杂志2010,18,11: | 38 |
| 2 | 色氨酸耗竭对偏头痛患者运动病症状的影响 | Drummond P.D. 王孝文 | 2005 | 世界核心医学期刊文摘(神经病学分册)2005,0,12: | 11 |
| 3 | Process structuring of polymers by solid phase orientation processing显示文摘Solid phase orientation of polymers is one of the most successful routes to enhancement of polymer properties.It unlocks the potential of molecular orientation for the achievement of a range of enhanced physical properties.We provide here an overview of techniques developed in our laboratories for structuring polymers by solid phase orientation processing routes,with a particular focus on die drawing,which have allowed control of significant enhancements of a single property or combinations of properties,including Young's modulus,strength,and density.These have led to notable commercial exploitations,and examples of load bearing low density materials and shape memory materials are discussed. | COATES P.D. CATON-ROSE P. WARD I.M. THOMPSON G. | 2013 | Science China Chemistry2013,56,8: | 11 |
| 4 | 选择性头部降温在新生儿脑病后全身轻度低温中应用的多中心随机试验 | Gluckman P.D. Wyatt J.S. Azzopardi D. A. J. Gunn 郭俊 | 2005 | 世界核心医学期刊文摘(神经病学分册)2005,0,8: | 4 |
| 5 | 中国宋代龙泉青瓷釉的组成和结构显示文摘南宋青瓷是陶瓷学者和收藏家研究和珍藏的对象,出产于宋代主要产瓷区——浙江省龙泉镇。特别是色调在青绿到黄绿范围的半透明翠绿釉青瓷更受人青睐。一般认为:龙泉青瓷釉的半透明性是由气泡、未熔融原料(石英等)及坯釉间钙长石结晶层使光产生散射而获得。初步研究晶体表明:青瓷釉的断面是相当粗糙的,存在着结晶相。经测定结晶相为假硅灰石(Casi O_3)和钙长石(CaO—Al_2 O_3-2SiO_2)。 | P.D.范迪弗 W.D.金格瑞 张侃 | 1989 | 中国陶瓷1989,25,3: | 4 |
| 6 | Clinical significance of VEGF, ER and AR expression in seminoma显示文摘Objective:To evaluate the expression of vascular endothelial growth factor (VEGF),estrogen receptor(ER) and androgen receptor(AR) in the genesis and development of seminoma.Methods:The expression of VEGF,ER and AR was assayed by means of immuno-histochemical technique in 16 cases of seminoma and 10 cases of prostatic cancer (Pca).Results:The VEGF expression positive rate was significantly higher(P<0.05) in seminoma than in Pca,being 14/16(87.5%) and (4/10,40%),respectively.The AR expression positive rate was lower(P>0.05) in seminoma (9/16,56.2%) than in Pca(9/10,90%).The ER expression was negative in all the seminoma and Pca patients .Conclusion:In Seminoma,the expression of VEGF is significantly increased,which may play a role in the genesis and development of the neoplasm. | J.Z. Wang, P.D. Mao, D.L. Zeng, J.J.Wang, X.Y. Xie, Z.J. Zhu, J.Y. Zhou Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, China | 2002 | Asian Journal of Andrology2002,4,4: | 4 |
| 7 | Nd-doped ZnO as a multifunctional nanomaterial显示文摘Chemically synthesised ZnO and Nd-doped ZnO nanoparticles were investigated for structural, optical, magnetic properties along with photocatalytic activity. Transmission electron microscopy measurement was performed on the undoped and doped ZnO nanoparticles. Compared to the undoped ZnO, Nd-doped ZnO nanoparticles showed enhanced photoluminescent and ferromagnetic properties. The Nd-doped ZnO nanoparticles also showed improved photocatalytic properties compared with the undoped ZnO nanoparticles. Furthermore, the effect of UV light irradiation was studied with thermoluminescence (TL) and photoluminescence (PL) measurement techniques. It was found that in case of Nd-doped ZnO nanoparticles TL intensity increased while the green emission in PL spectra decreased with UV-light irradiation. This was attributed to the production of more surface defects on UV irradiation on Nd-doping. | Surender Kumar P.D. Sahare | 2012 | Journal of Rare Earths2012,30,8: | 3 |
| 8 | 压力管道分岔管段合理形式的研究显示文摘由钢衬和钢筋混凝土组成的复合式岔管结构 ,利用两种材料间的相互作用 ,可以提高结构的整体性和可靠性。这为发展中国家提供了一种经济可行的解决办法。就这种岔管结构形式进行了模型试验研究。 | 伍鹤皋 P.D.葛斯林 丁旭柳 | 2000 | 水利水电快报2000,21,4: | 3 |
| 9 | Two Axes Solar Tracker Based on Solar Maps, Controlled by a Low-Power Microcontroller显示文摘 | F. Duarte P.D. Gaspar L.C. Goncalves | 2011 | Journal of Energy and Power Engineering2011,5,7: | 3 |
| 10 | Synthesis of accelerograms compatible with the Chinese GB 50011-2001 design spectrum via harmonic wavelets: artifi cial and historic records显示文摘A versatile approach is employed to generate artifi cial accelerograms which satisfy the compatibility criteria prescribed by the Chinese aseismic code provisions GB 50011-2001.In particular,a frequency dependent peak factor derived by means of appropriate Monte Carlo analyses is introduced to relate the GB 50011-2001 design spectrum to a parametrically defi ned evolutionary power spectrum(EPS).Special attention is given to the def inition of the frequency content of the EPS in order to accommodate the mathematical form of the aforementioned design spectrum.Further,a one-to-one relationship is established between the parameter controlling the time-varying intensity of the EPS and the effective strong ground motion duration.Subsequently,an effi cient auto-regressive moving-average(ARMA) fi ltering technique is utilized to generate ensembles of non-stationary artifi cial accelerograms whose average response spectrum is in a close agreement with the considered design spectrum.Furthermore,a harmonic wavelet based iterative scheme is adopted to modify these artifi cial signals so that a close matching of the signals' response spectra with the GB 50011-2001 design spectrum is achieved on an individual basis.This is also done for fi eld recorded accelerograms pertaining to the May,2008 Wenchuan seismic event.In the process,zero-phase high-pass f iltering is performed to accomplish proper baseline correction of the acquired spectrum compatible artifi cial and f ield accelerograms.Numerical results are given in a tabulated format to expedite their use in practice. | P.D. Spanos A. Giaralis Li Jie | 2009 | Earthquake Engineering and Engineering Vibration2009,8,2: | 3 |
| 11 | A new constitutive model for blast damage显示文摘 | R. Yang W.F. Bawden P.D. Katsabanis | 1996 | International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts1996,,3: | 3 |
| 12 | MORPHOLOGY OF AMORPHOUS SILICA DURING ALUMINUM REACTIVE PENETRATION显示文摘The reduction of the volumes of the silica glass during aluminum reactive penetration was observed experimentally. The liquid aluminum infiltrates easily into the cavities while the released silicon solves in the liquid aluminum, and Al/A12 O3 composites could be obtained finally. The experimental result has shown that Al/A12 O3 composites could transform into A12O3 grains by oxygen in the cavities of Al/A12O3 composites during longer penetration treatment. The formation of alumina is a sintering process, in which liquid aluminum, particulate alumina and oxygen play an important role. Tin nsformed process has shown that there is a relationship of σAl2O3 | Zhou, Z. Gan, Q.S. Ding, P.D. | 2000 | Acta Metallurgica Sinica(English Letters)2000,13,4: | 3 |
| 13 | MR Imaging of Bone Oedema: Mechanisms and Interpretation显示文摘 | S. EUSTACE C. KEOGH M. BLAKE R.J. WARD P.D. ODER M. DIMASI | 2001 | Clinical Radiology2001,,1: | 2 |
| 14 | Ultrasound elastography as an adjuvant to conventional ultrasound in the preoperative assessment of axillary lymph nodes in suspected breast cancer: A pilot study显示文摘 | K. Taylor S. O’Keeffe P.D. Britton M.G. Wallis G.M. Treece J. Housden D. Parashar S. Bond R. Sinnatamby | 2011 | Clinical Radiology2011,,11: | 2 |
| 15 | Source apportionment of visibility degradation problems in Brisbane (Australia) using the multiple linear regression techniques显示文摘 | Y.C. Chan R.W. Simpson G.H. Mctainsh P.D. Vowles D.D. Cohen G.M. Bailey | 1999 | Atmospheric Environment1999,,19: | 2 |
| 16 | 儿童湿疹和哮喘对双亲睡眠和身心健康的影响:一项前瞻性比较研究显示文摘Background: The psychological impact of childhood atopic eczema on parents and carers is poorly quantified. Objectives: To compare the impact of caring for a child with atopic eczema vs. asthma on parents’sleep and well-being. Methods: Ninety two parents of 55 children who had moderate to severe atopic eczema or asthma took part in this prospective, questionnaire based study. It was conducted at regional eczema and asthma outpatient clinics within a U.K. tertiary paediatric hospital. The main outcome measures were the number and duration of parents’sleep disturbances, as well as their anxiety and depression scores. Results: Mothers caring for children with atopic eczema lost a median of 39 min of sleep per night and fathers lost 45 min sleep per night. This compared with a median of 0 min sleep lost by parents who had children with asthma (P < 0.001). These differences were independent of the age of the children, and whether the child came from a single-parent or two-parent family. There was a direct correlation between the severity of sleep disturbance and the level of maternal anxiety (rho = 0.58; P = 0.002) and depression (rho = 0.73; P < 0.001), as well as the level of paternal anxiety (rho = 0.59; P = 0.01). Conclusions: Compared with looking after a child with chronic asthma, caring for a child with chronic atopic eczema was associated with greater parental sleep disturbances. Disruption to parental sleep correlated with anxiety levels and, in the case of mothers, depression scores. | Moore K. David T.J. Murray C.S. P.D. Arkwright 李政霄 | 2006 | 世界核心医学期刊文摘(皮肤病学分册)2006,2,6: | 2 |
| 17 | Source apportionment of visibility degradation problems in Brisbane (Australia) using the multiple linear regression techniques显示文摘 | Y.C. Chan R.W. Simpson G.H. Mctainsh P.D. Vowles D.D. Cohen G.M. Bailey | 1999 | Atmospheric Environment1999,,19: | 2 |
| 18 | 用于露天和地下爆破的炸药技术新进展显示文摘利用炸药爆破一直是岩石破碎的主要手段.尽管在非炸药破碎领域已作了大量努力,然而仍可有把握地预见在未来将继续利用炸药进行爆破。在过去的一些年,炸药工业已显著成熟,同时用户对炸药性能和质量控制亦提高了要求.炸药性能可加以调节以适应一定的爆破环境,且仪表可提供有用的信息以使爆破优化.针对爆破代化已研制出可调节作用于岩体的冲击能与膨胀能之比的可控非理想性能的炸药,可获得最小破坏的低密度炸药,尽量消除故障的稳定性炸药,露天和地下矿用的散装炸药,精确的起爆系统和灵活的起爆系统.本文概述这些进展,重点探讨每种进展的合理性。 | P.D.卡扎巴尼斯 胡力行 | 1996 | 国外金属矿山1996,21,6: | 2 |
| 19 | Updated high‐resolution grids of monthly climatic observations – the CRU TS3 .10 Dataset显示文摘 | I. Harris P.D. Jones T.J. Osborn D.H. Lister | 2014 | Climatol2014,,3: | 2 |
| 20 | Degradation of the strength of porous titanium after alkali and heat treatment显示文摘 | J.G. Lin Y.C. Li C.S. Wong P.D. Hodgson C.E. Wen | 2009 | Journal of Alloys and Compounds2009,,1: | 2 |