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| 1 | 谷氨酸柱撑水滑石超分子结构层柱材料的插层组装显示文摘用返混沉淀方法实现了谷氨酸柱撑水滑石超分子结构层柱材料的插层组装 ,得到结晶度高、晶相单一且谷氨酸在层间有序排列的超分子结构层柱材料 .用 X射线衍射、原子光谱、元素分析、红外光谱及热重-差热分析表征了超分子结构层柱材料的结构 ,给出其结构模型 . | 任玲玲 何静 EVANS David G. 段雪 | 2003 | 高等学校化学学报2003,24,1: | 22 |
| 2 | 磁性纳米固体碱催化剂MgAl-OH-LDHs/NiFe_2O_4的合成、表征与性能研究显示文摘提出用镁铝水滑石包覆镍铁尖晶石 ,制备磁性纳米固体碱催化剂MgAl OH LDHs/NiFe2 O4.用XRD ,IR ,TG DTA ,BET ,XPS ,VSM和TEM等技术及丙酮缩合反应表征了催化剂的结构和性能 .结果表明该催化剂具有以NiFe2 O4为磁核 ,以MgAl OH LDHs为Br nsted碱催化活性相 ,通过Mg O Fe(Ni)和 /或Al O Fe(Ni)连接于磁核上的包覆结构 ,给出了该催化剂的结构模型 .该催化剂用于丙酮缩合反应 ,2 73K双丙酮醇转化率略高于MgAl OH LDHs,然而经外加磁场回收所得回收率大幅度提高 ,再次用于该反应仍保持较高的催化活性 . | 张慧 徐彦红 EVANS David G. 段雪 | 2004 | 化学学报2004,62,8: | 15 |
| 3 | 上海26万妇女乳房自我检查随机试验显示文摘目的论证指导妇女进行乳房自我检查(BSE)是否能有效降低乳腺癌患者的死亡率。方法自1989年10月起,上海26.6万名年龄在30~64岁的妇女,随机进入指导组(132979名)和对照组(133085名)。在指导组,最初先由医务人员做规范的BSE手法演示,随后的4年中,使用BSE录像带进行二次强化教育,并定期进行BSE指导和在医务人员监察下进行BSE操作。本研究进行5年,全部活动均被记录。队列人群随访到2000年7月,乳腺癌患者的生存状况随访到2001年12月。统计分析采用Kaplan-Meier方法、Logrank检验以及Cox模型。结果指导组检出乳腺癌864例,其中死于乳腺癌133例;对照组检出乳腺癌896例,其中死于乳腺癌130例。两组乳腺癌病例的肿块大小、TNM分期和累积死亡率的差异均无统计学意义(P均>0.05)。但是指导组比对照组有较多和较小的纤维腺瘤被检出(P<0.01)。结论对人群开展BSE教育和指导,未能降低人群的乳腺癌死亡率;接受BSE教育的妇女比没有接受教育的妇女可检出较多的和较小的良性乳房肿块。 | 高道利 David BThomas Roberta M Ray 王文婉 Charlene J Allison 陈范良 Peggy Porter 胡永伟 赵关林 潘雷达 李雯瑾 武春园 Zakia Coriaty Ilonka Evans 林明纲 Helge Stalsberg Steven Gself | 2005 | 中华肿瘤杂志2005,27,6: | 14 |
| 4 | High-efficiency,large-area,topologyoptimized metasurfaces显示文摘Metasurfaces are ultrathin optical elements that are highly promising for constructing lightweight and compact optical systems.For their practical implementation,it is imperative to maximize the metasurface efficiency.Topology optimization provides a pathway for pushing the limits of metasurface efficiency;however,topology optimization methods have been limited to the design of microscale devices due to the extensive computational resources that are required.We introduce a new strategy for optimizing large-area metasurfaces in a computationally efficient manner.By stitching together individually optimized sections of the metasurface,we can reduce the computational complexity of the optimization from high-polynomial to linear.As a proof of concept,we design and experimentally demonstrate large-area,high-numerical-aperture silicon metasurface lenses with focusing efficiencies exceeding 90%.These concepts can be generalized to the design of multifunctional,broadband diffractive optical devices and will enable the implementation of large-area,high-performance metasurfaces in practical optical systems. | Thaibao Phan David Sell Evan W.Wang Sage Doshay Kofi Edee Jianji Yang Jonathan A.Fan | 2019 | Light(Science & Applications)2019,8,1: | 12 |
| 5 | Intentional ingestions of foreign objects among prisoners: A review显示文摘The intentional ingestion of foreign objects(IIFO) is described more commonly in prison populations than in the general population, with an estimated annual incidence of 1 in 1900 inmates in our state correctional facilities. Incidents often involve ingestion of small metal objects(e.g., paperclips, razor blades) or other commonly available items like pens or eating utensils. Despite ingestion of relatively sharp objects, most episodes can be clinically managed with either observation or endoscopy. Surgery should be reserved for those with signs or symptoms of gastrointestinal perforation or obstruction. For those with a history of IIFO, efforts should focus on prevention of recurrenceas subsequent episodes are associated with higher morbidity, significant healthcare and security costs. The pattern of IIFO is often repetitive, with escalation both in frequency of ingestions and in number of items ingested. Little is known about successful prevention strategies, but efforts to monitor patients and provide psychiatric care are potential best-practice strategies. This article aims to provide state-of-the art review on the topic, followed by a set of basic recommendations. | David C Evans Thomas R Wojda Christian D Jones Andrew J Otey Stanislaw P Stawicki | 2015 | World Journal of Gastrointestinal Endoscopy2015,7,3: | 10 |
| 6 | The joint automated repository for various integrated simulations (JARVIS) for data-driven materials design显示文摘The Joint Automated Repository for Various Integrated Simulations(JARVIS)is an integrated infrastructure to accelerate materials discovery and design using density functional theory(DFT),classical force-fields(FF),and machine learning(ML)techniques.JARVIS is motivated by the Materials Genome Initiative(MGI)principles of developing open-access databases and tools to reduce the cost and development time of materials discovery,optimization,and deployment. | Kamal Choudhary Kevin F.Garrity Andrew C.E.Reid Brian DeCost Adam J.Biacchi Angela R.Hight Walker Zachary Trautt Jason Hattrick-Simpers A.Gilad Kusne Andrea Centrone Albert Davydov Jie Jiang Ruth Pachter Gowoon Cheon Evan Reed Ankit Agrawal Xiaofeng Qian Vinit Sharma Houlong Zhuang Sergei V.Kalinin Bobby G.Sumpter Ghanshyam Pilania Pinar Acar Subhasish Mandal Kristjan Haule David Vanderbilt Karin Rabe Francesca Tavazza | 2020 | npj Computational Materials2020,,1: | 10 |
| 7 | Layer-by-layer assembly of long-afterglow self-supporting thin films with dual-stimuli-responsive phosphorescence and antiforgery applications显示文摘有长持续的光的薄电影(TF ) 的汇编能被期望在新产生的聪明的传感器,伪造反的材料,和信息加密系统的开发起一个重要作用。然而,如此的电影与他们的粉末和答案对应物相比被限制。在这学习,由利用黄磷在的组织工会二维(2D ) 在泥土 nanosheets 之间的画廊,我们由利用结合氢的 layer-by-layer (LBL ) 为长晚霞的 TF 的订的集会开发了一个方法过程。与太古的粉末相比, TF 展出高极化和起来变换房间温度磷光(RTP ) ,以及提高的量收益和光一生,允许他们被用作房间温度为湿度和氧的发磷光的传感器。而且,有多色 RTP 的修改基于泥土的混血儿能用作伪造反的标记和三倍模式的 2D barcode 显示。我们预计 LBL 汇编进程能被扩大到另外的无机器官的房间温度的制造有聪明的光传感器和 antiforgery 应用程序的发磷光的混血儿。 | Rui Gao Dongpeng Yan David G. Evans Xue Duan | 2017 | Nano Research2017,10,10: | 9 |
| 8 | 酸性橙插层锌铝水滑石的组装及其结构与性能显示文摘采用共沉淀法合成酸性橙阴离子插层锌铝水滑石(Zn/Al-AO7 LDHs),研究不同pH值及原料金属离子配比对产物结构的影响,利用X射线粉末衍射(XRD),热分析(TG-DTA),傅里叶变换红外(FT-IR)等表征手段,对插层产物的结构进行表征,确定了制备酸性橙插层锌铝水滑石的最适宜条件.用量子化学的B3PW91/6-31G(d,p)方法对Zn/Al-AO7 LDHs模型分子的空间几何构型进行了优化,通过结构组合得到的层间距为2.33 nm,接近XRD测试得到的层间距,从而说明了酸性橙离子在水滑石层板间的排列方式.进一步以甲酰胺为溶剂对水滑石层板进行剥离,得到澄清溶液,根据剥离产物的XRD谱可以确定剥离实验成功. | 何书珩 蒲敏 李军男 何静 EVANS David G. | 2010 | 物理化学学报2010,26,1: | 8 |
| 9 | Ti-MCM-41催化剂的表面性质及介质极性对苯羟化反应化学选择性的影响显示文摘用不同的铝源改性Ti MCM 41催化剂 ,得到了具有长程有序结构、n(Si) /n(Ti) =2 5的不同Si/Al比的改性Ti MCM 41.通过研究芳烃羟化反应随催化剂表面性质的变化规律发现 ,调变催化剂的表面性质 ,可控制反应物苯及目的产物苯酚与Al Ti MCM 41催化活性中心接近的程度 ,从而可实现对芳烃羟化反应化学选择性的控制 .介质极性对芳烃的化学亲和选择性也有影响 。 | 马辉 何静 David G Evans 段雪 | 2001 | 催化学报2001,22,5: | 8 |
| 10 | 选择性减胎术新进展显示文摘在过去的25年用减胎术来降低过度应用不孕症治疗技术所致的高数量的多胎妊娠的风险。近几十年多胎妊娠的人口统计学数据已经发生了如下变化:由于反对诱导排卵,导致IVF的比例增加;患者年龄偏大;使用捐赠卵子的比例增加。在行减胎术之前进行基因诊断越来越普遍,由有经验的医师来做又非常安全。对包括双胎妊娠在内的所有多胎妊娠的患者来说,减少胎儿数可以降低流产率、早产率、及胎儿死亡率和发病率。 | MarkI Evans Doina Ciorica David W.Britt John C.Fleter 郝克红 | 2010 | 中国产前诊断杂志(电子版)2010,,1: | 8 |
| 11 | Layered intercalated functional materials based on efficient utilization of magnesium resources in China显示文摘Mg-based layered intercalated functional materials of the layered double hydroxide type are a significant class of magnesium compounds.Based on long-term studies of these materials in the State Key Laboratory of Chemical Resource Engineering in Beijing University of Chemical Technology,two principles of 'using the intended application of a material as a guide to its structure design and synthesis process' and 'the design of controlled intercalation processes in the light of future production processing requirements' have been developed.To achieve these objectives,the composition of the host layers and guest interlayer anions was tailored at the microlevel,while the mesostructure and macrostructure were controlled to fabricate different kinds of Mg-based layered intercalated functional materials.These materials have diverse applications in key areas such as catalysis,the environment,and construction,and as polymer additives.Therefore,China's magnesium resources may be utilized more efficiently for the benefit of society. | David G EVANS | 2010 | Science China Chemistry2010,53,7: | 7 |
| 12 | 偶氮苯磺酸衍生物的光致顺反异构化机理显示文摘基于密度泛函理论(DFT)中的B3LYP方法,在6-311++G(d,p)水平上全优化得到了3,3′-偶氮苯磺酸(3,3′-AbS)在S0和T1态顺反异构化机理.在S0态存在两种异构化途径:绕角NNC反转和绕NC键旋转相结合的形式和单纯的绕CNNC二面角旋转形式,两种异构化途径的能垒分别为94.2和124.3kJ·mol-1.有必要指出的是,在反转与旋转结合的途径上存在二次过渡态.在T1态上仅存在旋转途径且其能垒为21.1kJ·mol-1.采用含时密度泛函理论(TD-DFT),在B3LYP/6-311++G(d,p)水平上,沿着基态的两种异构化途径计算得到了T1,S1,T2和S2态的垂直激发的势能剖面,分析了可能的光致异构化途径.当激发光波长为330nm时,反应物分子被激发到S2态,然后弛豫到较低的能态S1发生异构化反应,旋转途径存在两条活化途径:(1)沿着S1/S0的圆锥交叉点衰变到产物;(2)由S1态弛豫到T1态后,在S0-T1-S0的区域发生异构化,再转化到产物.计算结果表明,3,3′-AbS通过反转和旋转的结合形式实现在S0态的异构化,而被激发后倾向于沿着旋转坐标作为其主要的异构化途径. | 朱玥 蒲敏 何静 EVANS David G | 2009 | 物理化学学报2009,25,11: | 7 |
| 13 | Spatiotemporal microRNA profile in peripheral nerve regeneration:miR-138 targets vimentin and inhibits Schwann cell migration and proliferation显示文摘While the peripheral nervous system has regenerative ability,restoration of sufficient function remains a challenge.Vimentin has been shown to be localized in axonal growth fronts and associated with nerve regeneration,including myelination,neuroplasticity,kinase signaling in nerve axoplasm,and cell migration;however,the mechanisms regulating its expression within Schwann cell(SC) remain unexplored.The aim of this study was to profile the spatial and temporal expression profile of micro RNA(mi RNA) in a regenerating rat sciatic nerve after transection,and explore the potential role of mi R-138-5 p targeting vimentin in SC proliferation and migration.A rat sciatic nerve transection model,utilizing a polyethylene nerve guide,was used to investigate mi RNA expression at 7,14,30,60,and 90 days during nerve regeneration.Relative levels of mi RNA expression were determined using microarray analysis and subsequently validated with quantitative real-time polymerase chain reaction.In vitro assays were conducted with cultured Schwann cells transfected with mi RNA mimics and assessed for migratory and proliferative potential.The top seven dysregulated mi RNAs reported in this study have been implicated in cell migration elsewhere,and GO and KEGG analyses predicted activities essential to wound healing.Transfection of one of these,mi RNA-138-5 p,into SCs reduced cell migration and proliferation.mi R-138-5 p has been shown to directly target vimentin in cancer cells,and the luciferase assay performed here in rat Schwann cells confirmed it.These results detail a role of mi R-138-5 p in rat peripheral nerve regeneration and expand on reports of it as an important regulator in the peripheral nervous system. | Travis B.Sullivan Litchfield C.Robert Patrick A.Teebagy Shannon E.Morgan Evan W.Beatty Bryan J.Cicuto Peter K.Nowd Kimberly M.Rieger-Christ David J.Bryan | 2018 | Neural Regeneration Research2018,13,7: | 6 |
| 14 | Dispersal is associated with morphological innovation, but not increased diversification, in Cyphostemma (Vitaceae)显示文摘包括疏开,词法革新,和产地变化的多重过程经常为增加的多样化作为催化剂被引用。我们在类 Cyphostemma (Vitaceae ) 在他们之中调查这些过程和原因的连接,包括在为它生长习惯的差异的 Vitaceae 是唯一的 200 种类的 clade。我们重建 timecalibrated 在在使用五的类的 64 种类之中的进化关系原子并且叶绿体标记并且推断词法的组和 biogeographic 历史。我们测试因为在种形成的变化评估并且评估时间的协会并且用一条蒙特卡罗模拟途径关于疏开,产地变化,和词法进化事件定序。在 Cyphostemma,既不疏开也不词法进化处于种形成率与移动被联系,但是疏开在生长形式与进化移动被联系。特别地,茎多汁的进化与改编被联系到本地人,先存在在 situ 的条件列在后面 longdistance 疏开,不是产地变化。我们建议在疏开,词法革新,和多样化之间的协会的模式可以在学习下面依靠特别人物。与 evolutionarily 易变的人物一起的系例如茎多汁,未必确实遵循壁龛保守主义的观点并且相反表明显著词法改编到本地气候和土壤的条件列在后面疏开。 | David J. Hearn Margaret Evans Ben Wolf Michael McGinty Jun Wen | 2018 | Journal of Systematics and Evolution2018,56,4: | 6 |
| 15 | Liver transplantation for metastatic neuroendocrine tumor: A case report and review of the literature显示文摘Neuroendocrine tumors are divided into gastrointestinal carcinoids and pancreatic neuroendocrine tumors. The WHO has updated the classification of these lesions and has abandoned the term 'carcinoid'. Both types of tumors are divided into functional and non-functional tumors. They are characterized by slow growth and frequent metastasis to the liver and may be limited to the liver for long periods. The therapeutic approach to hepatic metastases should consider the number and distribution of the liver metastases as well as the severity of symptoms related to hormone production and tumor bulk. Surgery is generally considered as the first line therapy. In patients with unresectable liver metastases,alternative treatments are dependent on the type and the growth rate. Initial treatments consist of long acting somatostatin analogs and/or interferon. Streptozocinbased chemotherapy is usually reserved for symptomatic patients with rapidly advancing disease, but generally the therapy is poorly tolerated and its effects are short-lived.Locoregional therapy directed such as hepatic-artery embolization and chemoembolization, radiofrequency thermal ablation and cryosurgery, is often used instead of systemic therapy, if the disease is limited to the liver.However, liver transplantation should be considered in patients with neuroendocrine metastases to the liver that are not accessible to curative or cytoreductive surgery and if medical or locoregional treatment has failed and if there are life threatening hormonal symptoms. We report a case of liver transplantation for metastatic neuroendocrine tumor of unknown primary source and provide a detailed review of the world literature on this controversial topic. | Wojciech C Blonski K Rajender Reddy Abraham Shaked Evan Siegelman David C Metz | 2005 | World Journal of Gastroenterology2005,11,48: | 5 |
| 16 | Multi-dimensional, light-controlled switch of fluorescence resonance energy transfer based on orderly assembly of 0D dye@micro-micelles and 2D ultrathin-layered nanosheets显示文摘荧光回声精力转移(烦恼) 系统在视觉察觉,聪明的材料,和生物成像有宽广应用,所有哪个帮助通过多重尺寸并且在多样的方向的光的传播。此处,我们示威了多维(0D 和 2D ) 由采用 layer-by-layer (LBL ) 在一部多层的 ultrathin 电影(UTF ) 以内烦恼集会技术。(tert 丁基 acrylate-co-ethyl acrylate-co-methacrylic 酸)(PTBEM ) anionic 块共聚物 micelle poly 为二度(8-hydroxyquinolate ) 的加入被选择为一个分子的搬运人锌(Znq 2) 和开戒指的 merocyanine (MC )( 是表示了(Znq 2/MC)@PTBEM) 。或者,静电的汇编与 cationic 被执行分层的双氢氧化物(LDH ) nanosheets (是表示了[(Znq 2/MC)@PTBEM/LDH] n ) 。这[(Znq 2/MC)@PTBEM/LDH] n 系统提供多维的繁殖媒介并且保证 FRET 施主和领受人位于他们的 F 以内 ? 在每个方向的 rster 半径。系统表明能经由轮流出现被交换的 FRET 进程紫外 / 可见(UV/vis ) 照耀与悦耳的 blue-green/red 荧光,象 81.7% 一样高导致 FRET 效率。这被期望这个汇编方法,它在 2D 上使用 0D 微粒分层的材料,能为进一步的开发被扩大到另外的系统多维烦恼。 | Zhixiong Li Ruizheng Liang Simin Xu Wendi Liu Dongpeng Yan Min Wei David G. Evans Xue Duan | 2016 | Nano Research2016,9,12: | 4 |
| 17 | Pd_8簇催化氢化乙炔的反应机理显示文摘采用密度泛函理论(DFT)中的B3PW91方法研究了过渡金属Pd8簇催化氢化乙炔的反应机理.研究表明:H2进入Pd8簇后解离成H原子,并且只有当H原子吸附在Pd8簇表面上时,催化氢化反应才能发生.过渡金属Pd8簇催化氢化乙炔的反应机理的研究证实该催化反应从两种反应物出发经过两条不同的反应途径完成催化氢化反应,两种反应物分别为吸附在Pd8簇上的乙炔(Pd8(2H)-CH=CH)和其同分异构体亚乙烯基吸附物(Pd8(2H)-C=CH2).两条途径均为多步连续的加氢反应,不同之处在于从Pd8(2H)-CH=CH出发的为单一路径,解离后的H原子分步依次加成到吸附在Pd8簇上的乙炔中的C原子上,直到反应完成生成乙烷.而从Pd8(2H)-C=CH2出发的路径较为复杂,分别经过两个不同的过渡态和中间体生成次乙基中间体,该过程相对应的反应位垒相差约12.552kJ·mol-1,说明这两个过渡态同时存在,无先后次序.然后继续加成H原子直到生成乙烷完成反应.同时,两条路径分别形成一系列具有应用价值的C2有机化合物中间体,其中一些中间体通过分子内质子转移相互转化,使得原本独立的两条反应路径联系在一起,成为网状路径. | 李军男 蒲敏 何书珩 何静 EVANS David G. | 2011 | 物理化学学报2011,27,4: | 3 |
| 18 | The Cost-Effectiveness of Neoadjuvant Chemoradiation is Superior to a Surgery-First Approach in the Treatment of Pancreatic Head Adenocarcinoma显示文摘 | Daniel E. Abbott Ching-Wei David Tzeng Ryan P. Merkow Scott B. Cantor George J. Chang Matthew Harold Katz David J. Bentrem Karl Y. Bilimoria Christopher H. Crane Gauri R. Varadhachary James L. Abbruzzese Robert A. Wolff Jeffrey E. Lee Douglas B. Evans Jas | 2013 | Annals of Surgical Oncology2013,,3: | 3 |
| 19 | Eosinophilic esophagitis: Updated consensus recommendations for children and adults显示文摘 | Chris A. Liacouras Glenn T. Furuta Ikuo Hirano Dan Atkins Stephen E. Attwood Peter A. Bonis A. Wesley Burks Mirna Chehade Margaret H. Collins Evan S. Dellon Ranjan Dohil Gary W. Falk Nirmala Gonsalves Sandeep K. Gupta David A. Katzka Alfredo J. Lucendo Jo | 2011 | The Journal of Allergy and Clinical Immunology2011,,1: | 3 |
| 20 | Low-radiation and high image quality coronary computed tomography angiography in “real-world” unselected patients显示文摘AIM To determine the radiation dose and image quality in coronary computed tomography angiography(CCTA)using state-of-the-art dose reduction methods in unselected'real world'patients.METHODS In this single-centre study,consecutive patients in sinus rhythm underwent CCTA for suspected coronary artery disease(CAD)using a 320-row detector CT scanner.All patients underwent the standard CT acquisition protocol at our institute(Morriston Hospital)a combination of dose saving advances including prospective electrocardiogram-gating,automated tube current modulation,tube voltage reduction,heart rate reduction,and the most recent novel adaptive iterative dose reconstruction 3D(AIDR3D)algorithm.The cohort comprised real-world patients for routine CCTA who were not selected on age,body mass index,or heart rate.Subjective image quality was graded on a 4-point scale(4=excellent,1=non-diagnostic).RESULTS A total of 543 patients were included in the study with a mean body weight of 81±18 kg and a pre-scan mean heart rate of 70±11 beats per minute(bpm).When indicated,patients received rate-limiting medication with an oral beta-blocker followed by additional intravenous beta-blocker to achieve a heart rate below 65 bpm.The median effective radiation dose was 0.88 mSv(IQR,0.6-1.4 mSv)derived from a Dose Length Product of61.45 mGy.cm(IQR,42.86-100.00 mGy.cm).This also includes what we believe to be the lowest ever-reported radiation dose for a routine clinical CCTA(0.18 mSv).The mean image quality(SD)was 3.65±0.61,with a subjective image quality score of 3('good')or above for 93%of patient CCTAs.CONCLUSION Combining a low-dose scan protocol and AIDR3D with a 320-detector row CT scanner can provide high quality images at exceptionally low radiation dose in unselected patients being investigated for CAD. | Caryl Elizabeth Richards Stephen Dorman Patricia John Anthony Davies Sharon Evans Tishi Ninan David Martin Sriranj Kannoly Gail Roberts-Davies Mark Ramsey Daniel Rhys Obaid | 2018 | World Journal of Radiology2018,10,10: | 3 |