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| 1 | 胰腺导管腺癌放射学报告模板:腹部放射协会和美国胰腺协会的共识声明显示文摘胰腺导管腺癌(PDA)是一种具有侵袭性、死亡率高的恶性肿瘤。在肿瘤分期时,通过影像学分析,合理判定肿瘤的范围,是患者治疗措施中最重要的步骤之一。考虑到不同医生在专业知识水平和疾病严重程度的判定有所差异,以及在放射学检查时经常缺乏相关影像学表现的完整报道,有必要采用标准化的影像学报告模板以及大家一致接受和认可的胰腺实性肿瘤术语。在腹部放射协会和美国胰腺协会的共同资助下,胰腺导管腺癌(PDA)多机构专家组(包括放射学专家、胃肠病学和肝胆胰外科学专家)共同发起了一份描述标准化报告模板的共识声明。采用这种标准化的影像学报告模板将能改进PDA患者的治疗决策过程,并可通过提供一份完整、相关、精准的疾病分期报告以优化治疗方案。通过对可行手术切除的患者恰当、一致的分期,标准化报告模板有助于促进临床和科研实验设计,从而实现在不同机构之间的实验结果的比较。 | Mahmoud M.Al-Hawary Isaac R.Francis Suresh T.Chari Elliot K.Fishman David M.Hough David S.Lu Michael Macari Alec J.Megibow Frank H.Miller Dushyant V.Sahani Diane M.Simeone 黄翔 孙灿辉 | 2014 | 影像诊断与介入放射学2014，23，4： | 52 |
| 2 | Measurement and Interpretation of Connectivity of Chinese Cities in World City Network,2010显示文摘This is an empirical paper that measures and interprets the position of Chinese cities in the world city network in 2010. Building on a specification of the world city network as a′interlocking network′in which business services firms play the crucial role in city network formation, information is gathered about the presence of global service firms in cities. This information is converted into data to provide the′service value′of a city for a firm′s provision of corporate services in a 526(cities)×175(firms) matrix. These data are then used as the input to the interlocking network model in order to measure cities′connectivity and its predominant geographical orientation. Here we focus on the position of some key Chinese cities in this regard, and discuss and interpret results in the context of the urban dimensions of the′opening up′of the Chinese economy. | Ben DERUDDER Peter J TAYLOR Michael HOYLER NI Pengfei LIU Xingjian ZHAO Miaoxi SHEN Wei Frank WITLOX | 2013 | Chinese Geographical Science2013，23，3： | 40 |
| 3 | 塔干南缘骆驼刺植被水分关系的研究(英文)显示文摘对塔克拉玛干沙漠———绿洲过渡带骆驼刺 (AlhagisparsifoliaShap .)水分关系的研究表明 :骆驼刺在夏季保持了正的膨压 ,一直较高较稳定的清晨水势说明植物水分恢复状况良好 ,植物得到了较好的水分供应 ;在 7月 ,干旱胁迫造成的水分亏缺并未影响植株正常的蒸腾作用 ,因而干旱引起的水分胁迫并未威胁到植被的存在。骆驼刺对干旱胁迫的水分生理适应主要体现在叶水平上 ,表现为饱和枝条的渗透势 (Πo)和膨压消失点的渗透势 (Πp)的差值 (ΔΠ)和相对含水量 (RWC)在膨压消失点间更大的变化、渗透调节的产生、较高较稳定的饱和枝条水分与干物质之比 (WCsat)和膨压消失点的相对含水量 (RWCp) ,以及较低的共质体水在总水分中的相对含量 (RWCsym)。但形态学上的特征 ,主要表现为深而发达的根系和蒸腾面积的减少 ,才是骆驼刺适应极端干旱环境的主要途径。非定期的夏季一次性灌溉对地下水位很低地区的骆驼刺植被水分状况的恢复没有帮助。 | 李向义 张希明 曾凡江 Andrea FOETZKI Frank M .THOMAS 李小明 Michael RUNGE 何兴元 | 2002 | Acta Botanica Sinica2002，44，10： | 22 |
| 4 | 南海张裂过程及其对晚中生代以来东南亚构造的启示--IODP建议书735-Full介绍显示文摘南海的形成揭示了大陆边缘张裂和盆地形成的复杂模式,尽管已经进行了广泛研究,但是关于基底岩石和深海盆沉积层的精确年代数据还很缺乏,这使得对南海张裂年代的估计存在很大的误差,对张裂机制和历史的各种假设没有得到验证。同时只有对南海的张裂过程有了精确地分析与刻画,才能更好地理解西太平洋边缘海盆地的形成以及它们在印支块体受印度—欧亚板块碰撞而向东南挤出、青藏高原隆升中可能起到的作用。2009年正式提交的国际综合大洋钻探计划(IODP)建议书735-Full建议在南海深海盆内的4个站位上实施钻探。这4个站位分布在南海盆地4个不同的次级构造单元上(南海东北部、西北次海盆、东部次海盆和西南次海盆),这样的站位设计会确保完成本建议书的整体研究目标,即揭示南海的张裂历史和它对晚中生代以来东南亚构造的启示。位于南海盆地最东北部的站位有助于确定该区域地壳的属性和验证古南海是否存在,位于西北次海盆的站位可能会提供南海的最早张裂年代,另外2个分别位于东部次海盆和西南次海盆的站位将重点确定2个次海盆的绝对年龄、基底矿物成分与磁化率以及2个次海盆的相对张裂次序。这些站位的水深大约在2910~4400m,钻探深度预计到海底以下大约700~2200m,总的钻透深度为5959m,其中5359m穿透沉积层,另外600m或400m钻入基底。所有这些站位的位置是由已有的地球物理观测数据所确定,目前计划收集更多的地质与地球物理数据以满足IODP对井位调查数据的要求。 | 李春峰 汪品先 Dieter Franke 李家彪 Randell Stephenson 许树坤 Peter Michael 周祖翼 翦知湣 李前裕 刘志飞 耿建华 木村学 阎贫 丘学林 王嘹亮 解习农 吴时国 吴能友 | 2009 | 地球科学进展2009，24，12： | 20 |
| 5 | Clinical outcome and predictors of survival after TIPS insertion in patients with liver cirrhosis显示文摘AIM:To determine the clinical outcome and predictors of survival after transjugular intrahepatic portosystemic stent shunt (TIPS) implantation in cirrhotic patients. METHODS:Eighty-one patients with liver cirrhosis and consequential portal hypertension had TIPS implantation (bare metal) for either refractory ascites (RA) (n= 27) or variceal bleeding (VB) (n = 54). Endpoints for the study were:technical success, stent occlusion and stent stenosis, rebleeding, RA and mortality. Clinical records of patients were collected and analysed. Baseline characteristics [e.g., age, sex, CHILD score and the model for end-stage liver disease score (MELD score), underlying disease] were retrieved. The Kaplan-Meier method was employed to calculate survival from the time of TIPS implantation and comparisons were made by log rank test. A multivariate analysis of factors influencing survival was carried out using the Cox proportional hazards regression model. Results were expressed as medians and ranges. Comparisons between groups were performed by using the Mann-Whitney Utest and the χ 2 test as appropriate. RESULTS:No difference could be seen in terms of age, sex, underlying disease or degree of portal pressure gradient (PPG) reduction between the ascites and the bleeding group. The PPG significantly decreased from 23.4 ± 5.3 mmHg (VB) vs 22.1 ± 5.5 mmHg (RA) before TIPS to 11.8 ± 4.0 vs 11.7 ± 4.2 after TIPS implantation (P = 0.001 within each group). There was a tendency towards more patients with stage CHILD A in the bleeding group compared to the ascites group (24 vs 6, P = 0.052). The median survival for the ascites group was 29 mo compared to > 60 mo for the bleeding group (P = 0.009). The number of radiological controls for stent patency was 6.3 for bleeders and 3.8 for ascites patients (P = 0.029). Kaplan-Meier calculation indicated that stent occlusion at first control (P = 0.027), ascites prior to TIPS implantation (P = 0.009), CHILD stage (P = 0.013), MELD score (P = 0.001) and those patients not having undergone liver transplantation (P = 0.024) were significant predictors of survival. In the Cox regression model, stent occlusion (P = 0.022), RA (P = 0.043), CHILD stage (P = 0.015) and MELD score (P = 0.004) turned out to be independent prognostic factors of survival. The anticoagulation management (P = 0.097), the porto-systemic pressure gradient (P= 0.460) and rebleeding episodes (P = 0.765) had no significant effect on the overall survival. CONCLUSION:RA, stent occlusion, initial CHILD stage and MELD score are independent predictors of survival in patients with TIPS, speaking for a close follow-up in these circumstances. | Hauke S Heinzow Philipp Lenz Michael Khler Frank Reinecke Hansjrg Ullerich Wolfram Domschke Dirk Domagk Tobias Meister | 2012 | World Journal of Gastroenterology2012，18，37： | 17 |
| 6 | Euler-Lagrange/DEM simulation of wood gasification in a bubbling fluidized bed reactor显示文摘We present an Euler–Lagrange method for the simulation of wood gasification in a bubbling fluidized bed. The gas phase is modeled as a continuum using the 2D Navier–Stokes equations and the solid phase is modeled by a Discrete Element Method(DEM)using a soft-sphere approach for the particle collision dynamic. Turbulence is included via a Large-Eddy approach using the Smagorinsky sub-grid model.The model takes into account detailed gas phase chemistry,zero-dimensional modeling of the pyrolysis and gasification of each individual particle,particle shrinkage,and heat and mass transfer between the gas phase and the particulate phase.We investigate the influence of wood feeding rate and compare exhaust gas compositions and temperature results obtained with the model against experimental data of a laboratory scale bubbling fluidized bed reactor. | Michael Oevermann Stephan Gerber Frank Behrendt | 2009 | Particuology2009，7，4： | 15 |
| 7 | Direct ex vivo analysis of dendritic cells in patients with hepatocellular carcinoma显示文摘瞄准:与肝细胞癌(HCC ) 从病人分析树枝状的房间(DC ) 的显型和功能以便在这疾病理解他们的角色。方法:骨髓的的树枝状的房间在 HCC 病人的外部血被枚举。从外部血的天真、刺激的骨髓的的树枝状的房间上的 CD80, CD83, CD86 和 HLA 医生表示被分析。骨髓的的树枝状的房间从外部血被孤立,他们的功能被测试。吞噬作用用 FITC 葡聚糖祷告被分析,肽特殊刺激,在多形核白细胞 dI:dC 之上刺激 allogeneic T 房间和 cytokines 的分泌物的能力被测试。结果:骨髓的的树枝状的房间与 HCC 在病人被减少。在 CD80, CD83, CD86 和 HLA 医生表示的差别都没从 HCC 病人和健康控制在天真、刺激的骨髓的的树枝状的房间上被发现。肽 specific T 房间的正常吞噬作用或刺激与一个损害 allo-stimulatory 能力和减少的 IL-12 分泌物相对照被观察。结论:在病人的 mDCs 的损害 IL-12 生产能导致建议指导治疗可以提高的那 IL-12 的天真的 T 房间的一个损害 stimulatory 能力在 HCC 病人的肿瘤 specific 免疫者回答。 | Lars A Ormandy Anatol Frber Tobias Cantz Susanne Petrykowska Heiner Wedemeyer Monique Hrning Frank Lehner Michael P Manns Firouzeh Korangy Tim F Greten | 2006 | World Journal of Gastroenterology2006，12，20： | 12 |
| 8 | Crustal Structure across the Northwestern Margin of South China Sea:Evidence for Magma-poor Rifting from a Wide-angle Seismic Profile显示文摘我们从宽角度的地震侧面在 OBS2006 期间在华南海(SCS ) 的西北部分获得了的 484 km 的现在的结果航行。沿着一根以前获得的多信道的地震的线(SO4918 ) 跑的线穿过北边缘的大陆人斜坡,华南海的西北 Subbasin (NWSB ) , Zhongsha 山岳并且部分华南海的海洋的盆。在 13 张海洋底部测震表上记录的地震的节被用来从外壳的层识别测定阶段并且也从外壳披风边界(莫霍) 反映了阶段。用一个简单开始模型的 traveltimes 的倒置在学习区域揭示外壳的图象。速度模型证明在大陆人斜坡下面的外壳的厚度在 14 和 23 km 之间。线的大陆人部分被描绘由轻轻向陆地披风高举并且突然的 oceanward。在更低的外壳中的速度不超过 6.9 km/s。与新数据,我们能在线的地点排除高速度的更低的外壳的身体(在 7.0 km/s 上面的速度) 。我们断定华南海边缘的这部分由岩浆穷人 rifting 发展了。两个都, NWSB 和西南亚盆(SWSB ) 与在 5 和 7 km 之间的外壳的厚度揭示为海洋的外壳典型的速度。两者之间的 Zhongsha 山岳极其被拉长, 610 仅仅 km 大陆人外壳离开了。外壳的速度在 6.5 km/s 下面;可能显示更低的外壳的缺席。多信道的地震侧面证明 Yitongansha 在斜坡区域和 Zhongsha 山岳高举仅仅温和地被使变形。当僵硬大陆堵住哪个充当了随后导致西北亚盆的形成的主要裂缝的裂缝肩膀,我们考虑了他们。延期主要被提供由一可锻降低外壳的流动,它可能极其被稀释了并且在传播阶段期间流进海洋的盆。我们沿着北边缘比较了外壳的结构并且发现了东方西方变厚在大陆斜坡下面的外壳的趋势。这可能被沿着大陆人边缘传播的东方西方海地板贡献。 | DING Weiwei Michael SCHNABEL Dieter FRANKE RUAN Aiguo WU Zhenli | 2012 | Acta Geologica Sinica(English Edition)2012，86，4： | 12 |
| 9 | Application of community-based and integrated strategy to reduce malaria disease burden in southern Tanzania:the study protocol of China-UK-Tanzania pilot project on malaria control显示文摘Background:During the past six decades,remarkable success on malaria control has been made in China.The major experience could be shared with other malaria endemic countries including Tanzania with high malaria burden.Especially,China’s 1-3-7 model for malaria elimination is one of the most important refined experiences from many years’efforts and key innovation measures for malaria elimination in China.Methods:The China-UK-Tanzania pilot project on malaria control was implemented from April,2015 to June,2018,which was an operational research with two communities receiving the proposed interventions and two comparable communities serving as control sites.The World Health Organization'Test,Treat,Track'(WHO-T3)Initiative,which calls for every suspected case to receive a diagnostic test,every confirmed case to be treated,and for the disease to be tracked,was integrated with Chinese experiences on malaria control and elimination for exploration of a proper model tailored to the local settings.Application of China’s 1-3-7 model integrating with WHO-T3 initiative and local resources aiming at reducing the burden of malaria in terms of morbidity and mortality by 30%in the intervention communities in comparison with that at the baseline survey.Discussion:The China-UK-Tanzania pilot project on malaria control was that at China’s first pilot project on malaria control in Africa,exploring the feasibility of Chinese experiences by China-Africa collaboration,which is expected that the strategies and approaches used in this project could be potential for scaling up in Tanzania and African countries,and contribute to the acceleration of malaria control and elimination in Africa. | Duoquan Wang Prosper Chaki Yeromin Mlacha Tegemeo Gavana Mihayo Gabriel Michael Rashid Khatibu Jun Feng Zheng-Bin Zhou Kang-Ming Lin Shang Xia He Yan Deus Ishengoma Susan Rumisha Sigbert Mkude Renata Mandike Frank Chacky Charles Dismasi Salim Abdulla Honorati Masanja Ning Xiao Xiao-Nong Zhou | 2019 | Infectious Diseases of Poverty2019，8，1： | 12 |
| 10 | Expression of tissue factor in pancreatic adenocarcinoma is associated with activation of coagulation显示文摘瞄准:在 thromboembolism 的开发在胰腺的癌症和它的角色学习织物因素(TF ) 的表示。方法:TF 表示被北污点和间接免疫荧光在八根人的胰腺的癌房间线学习。或者拼接的 TF (asTF ) 的表示被 RT-PCR 估计。另外, TF 表示被免疫荧光与胰腺的腺癌(PCa ) 在 19 个病人的胰腺的纸巾决定,有慢性胰炎(CP ) 的 9 个病人和 20 正常控制。血浆样品(30 PCa 病人, 13 CP 病人和 20 控制) 为可溶的 TF 层次和凝结激活标记被调查[thrombin-antithrombin III 建筑群(梭织) ,凝血素碎片 1 + 2 (F1 + 2 )] 。结果:所有胰腺的癌房间线表示了 TF (8/8 ) ,他们中的大多数表示了 asTF (6/8 ) 。在蛋白质水平的 TF 表示没与癌房间线的区别相关。几乎,二件胰腺的癌症组织样品染色了为 TF (17/19 ) 积极。在 CP 的所有样品,弱染色被限制为胰腺的管房间,而一些仅仅内皮下房间在正常控制的 9/20 是积极的。TF 并且在 PCa 病人梭织层次而 2 铺平的提高的 F1 + 没与控制相比到达统计意义,显著地与控制相比被提高。在病人们梭织的 CP 和 F1 + , 2 个层次证明了显著地与控制相比被提高,尽管梭织举起少些比在 PCa 病人被读。结论:我们结束那除了起来房间膜上的 TF 的调整表示,可溶的 TF 可能在胰腺的癌症贡献凝结系统的激活。 | Stephan L Haas Ralf Jesnowski Michael Steiner Frank Hummel Jrg Ringel Christine Burstein Horst Nizze Stefan Liebe J Matthias Lhr | 2006 | World Journal of Gastroenterology2006，12，30： | 9 |
| 11 | 肝上腔静脉成形术联合肝后腔静脉扩展术在肝移植中的应用:首次115例经验报道显示文摘目的:本文介绍原位肝移植中腔静脉成形术的方法并评估其结果。方法:1994年11月至2000年9月,我们对连续115例原位肝移植(包括6例左外侧叶及2例右叶移植)病人采用了腔静脉成形术。 在起初的4年里,53例(66.3%)移植病人需行股-腋静脉体外转流,而以后的2年内该比例降至8例(22.9%)。无一例病人需中转为背驮式或经典术式。结果:中位手术时间4.5h,中位热缺血时间25min,中位输血量6U浓缩红细胞。上述结果在首次移植及再次移植间无差异。本组无与腔静脉成形技术相关的围手术期死亡。包括活体原位肝移植在内,均未观察到肝静脉流出道梗阻。没有病人因急性肾功能衰竭而需术后血透。病人留置于ICU的中位天数2d,中位住院天数为10d。结论:腔静脉成形术无需解剖肝后腔静脉、肝静脉或肝短静脉,肝下腔静脉也得以保留,并因此更有利于肝切除及维持稳定的血流动力学,在再次移植中优势更为明显。大开口的三角形腔静脉吻合容易操作,能在较短时间内完成供肝植入,且易与吻合血管口径的匹配,并可避免流出道阻塞。操作时间的缩短减少了静脉体外转流的可能。我们认为腔静脉成形技术能适用于所有病人,且相应手术的并发症少。 | You Min Wu Michael Voigt Stephen Rayhili Daniel Kartz Rou-Yee Chenhsu Warren Schmidt Rachel Miller Frank Mtros Douglas Labrecque 周光文 | 2002 | 外科理论与实践2002，7，2： | 7 |
| 12 | Vanishing bile duct syndrome in human immunodeficiency virus: Nevirapine hepatotoxicity revisited显示文摘Vanishing bile duct syndrome (VBDS) refers to a group of disorders characterized by prolonged cholestasis as a result of destruction and disappearance ofintrahepatic bile ducts. Multiple etiologies have been indentifi ed including infections, neoplastic disorders, autoimmune conditions and drugs. The natural history of this condition is variable and may involve resolution of cholestasis or progression with irreversible damage. VBDS is extremely rare in human immunodeficiency virus (HIV)-infected patients and anti-retroviral therapy has never been implicated as a cause. We encountered a young pregnant female with HIV and VBDS secondary to anti-retroviral therapy. Here, we report her clinical course and outcome. | Rajan Kochar Moises I Nevah Frank J Lukens Michael B Fallon Victor I Machicao | 2010 | World Journal of Gastroenterology2010，16，26： | 6 |
| 13 | Three-Year Efficacy and Safety of Tenofovir Disoproxil Fumarate Treatment for Chronic Hepatitis B显示文摘 | E. Jenny Heathcote Patrick Marcellin Maria Buti Edward Gane Robert A. De Man Zahary Krastev George Germanidis Samuel S. Lee Robert Flisiak Kelly Kaita Michael Manns Iskren Kotzev Konstantin Tchernev Peter Buggisch Frank Weilert Oya Ovunc Kurdas Mitchell L | 2011 | Gastroenterology2011，，1： | 5 |
| 14 | Capsule endoscopy in suspected small bowel Crohn's disease:Economic impact of disease diagnosis and treatment显示文摘AIM: To model clinical and economic benef its of capsule endoscopy (CE) compared to ileo-colonoscopy and small bowel follow-through (SBFT) for evaluation of suspected Crohn’s disease (CD). METHODS: Using decision analytic modeling, total and yearly costs of diagnostic work-up for suspected CD were calculated, including procedure-related adverse events, hospitalizations, off ice visits, and medications. The model compared CE to SBFT following ileo-colonoscopy and secondarily compared CE to SBFT for initial evaluation. RESULTS: Aggregate charges for newly diagnosed, medically managed patients are approximately $8295. Patients requiring aggressive medical management costs are $29 508; requiring hospitalization, $49 074. At sensitivity > 98.7% and specifi city of > 86.4%, CE is less costly than SBFT. CONCLUSION: Costs of CE for diagnostic evaluationof suspected CD is comparable to SBFT and may be used immediately following ileo-colonoscopy. | Jonathan A Leighton Ian M Gralnek Randel E Richner Michael J Lacey Frank J Papatheofanis | 2009 | World Journal of Gastroenterology2009，15，45： | 5 |
| 15 | Comparison of 1,800 Laparoscopic and Open Partial Nephrectomies for Single Renal Tumors显示文摘 | Inderbir S. Gill Louis R. Kavoussi Brian R. Lane Michael L. Blute Denise Babineau J. Roberto Colombo Igor Frank Sompol Permpongkosol Christopher J. Weight Jihad H. Kaouk Michael W. Kattan Andrew C. Novick | 2007 | The Journal of Urology2007，，1： | 5 |
| 16 | Mitogenomic phylogeny of the Asian colobine genus Trachypithecus with special focus on Trachypithecus phayrei(Blyth, 1847) and description of a new species显示文摘Trachypithecus,which currently contains 20 species divided into four groups,is the most speciose and geographically dispersed genus among Asian colobines.Despite several morphological and molecular studies,however,its evolutionary history and phylogeography remain poorly understood.Phayre’s langur(Trachypithecus phayrei) is one of the most widespread members of the genus,but details on its actual distribution and intraspecific taxonomy are limited and controversial.Thus,to elucidate the evolutionary history of Trachypithecus and to clarify the intraspecific taxonomy and distribution of T.phayrei,we sequenced 41 mitochondrial genomes from georeferenced fecal samples and museum specimens,including two holotypes.Phylogenetic analyses revealed a robustly supported phylogeny of Trachypithecus,suggesting that the T.pileatus group branched first,followed by the T.francoisi group,and the T.cristatus and T.obscurus groups most recently.The four species groups diverged from each other 4.5-3.1 million years ago(Ma),while speciation events within these groups occurred much more recently(1.6-0.3 Ma).Within T.phayrei,we found three clades that diverged 1.0-0.9 Ma,indicating the existence of three rather than two taxa.Following the phylogenetic species concept and based on genetic,morphological,and ecological differences,we elevate the T.phayrei subspecies to species level,describe a new species from central Myanmar,and refine the distribution of the three taxa.Overall,our study highlights the importance of museum specimens and provides new insights not only into the evolutionary history of T.phayrei but the entire Trachypithecus genus as well. | Christian Roos Kristofer MHelgen Roberto Portela Miguez Naw May Lay Thant Ngwe Lwin Aung Ko Lin Aung Lin Khin Mar Yi Paing Soe Zin Mar Hein Margaret Nyein Nyein Myint Tanvir Ahmed Dilip Chetry Melina Urh EGrace Veatch Neil Duncan Pepijn Kamminga Marcus AHChua Lu Yao Christian Matauschek Dirk Meyer Zhi-Jin Liu Ming Li Tilo Nadler Peng-Fei Fan Le Khac Quyet Michael Hofreiter Dietmar Zinner Frank Momberg | 2020 | Zoological Research2020，41，6： | 5 |
| 17 | miR-122 regulation of lipid metabolism revealed by in vivo antisense targeting显示文摘 | Christine Esau Scott Davis Susan F. Murray Xing Xian Yu Sanjay K. Pandey Michael Pear Lynnetta Watts Sheri L. Booten Mark Graham Robert McKay Amuthakannan Subramaniam Stephanie Propp Bridget A. Lollo Susan Freier C. Frank Bennett Sanjay Bhanot Brett P. Mo | 2006 | Cell Metabolism2006，，2： | 4 |
| 18 | 焦磷酸重量法与X线粉末衍射法测定游离二氧化硅的比较显示文摘为了评价焦磷酸重量法与X线粉末衍射法测定游离SiO_2的结果,我们分别用两法对17个金属矿山和9个瓷厂生产环境中的积尘游离SiO_2进行了测定比较。结果表明:焦磷酸法的测定值高于X线粉末衍射法,且差异显著。把经焦磷酸法测定后的样品沉渣作进一步分析,发现沉渣中存在某些难溶物质未能被焦磷酸彻底除掉。建议用焦磷酸法测定金属矿尘和瓷厂积尘游离SiO_2时,有必要对难溶物质作进一步处理,这对提高分析质量,保证结果的真实可靠是十分必要的。 | 彭开良 吴植恩 Frank J.Hearl Michael A.McCawley | 1993 | 中华劳动卫生职业病杂志1993，11，5： | 4 |
| 19 | Three-dimensional analysis of the physiological foramen geometry of maxillary and mandibular molars by means of micro-CT显示文摘The aim of this study was to investigate the physiological foramen diameter, shape and distance between physiological and anatomical apex of maxillary and mandibular first and second molars. Accurate knowledge of the physiological foramina morphology; thus, inherent mechanical shaping technical hindrances, is decisive when taking the corresponding root canal final preparation decision. The morphological dimensions of a total of 1 727 physiological foramina were investigated by means of micro-computed tomography. Mean narrow and wide(to a high number, oval) diameters of the physiological foramen were 0.24,0.22 and 0.33 mm and 0.33, 0.31 and 0.42 mm in mesiobuccal(MB), distobuccal(DB) and palatal(P) roots in maxillary first molars; 0.24, 0.22 and 0.33 mm and 0.41, 0.33 and 0.44 in MB, DB, and P roots in maxillary second molars. Mandibular first molars showed mean narrow and wide diameters of 0.24 and 0.30 mm and of 0.39 and 0.46 mm in mesial(M) and distal(D)roots; second mandibular molars showed 0.25 and 0.31 mm and 0.47 mm in M and D roots. The mean distance between the physiological foramina and anatomical apex was 0.82, 0.81 and 1.02 mm and 0.54, 0.43 and 0.63 mm in MB, DB and P roots of the maxillary first and second molars, respectively. A mean distance of 0.95 mm(M) and 1.05 mm(D) in the first and0.78 mm(M) and 0.81 mm(D) in the second mandibular molars was observed. Based on the results obtained, assumable recommendations for final preparation size of the physiological foramen were calculated. However, when taking into consideration, the resulting standard deviations of marginal errors must be cautiously considered when taking a final decision in clinical endodontic treatment. | Thomas Gerhard Wolf Frank Paqué Michael Sven Patyna Brita Willershausen Benjamín Briseno-Marroquín | 2017 | International Journal of Oral Science2017，9，3： | 4 |
| 20 | Stand structure and productivity of Populus euphratica along a gradient of groundwater distances at the tarim River(NW china)显示文摘Aims Along central-Asian rivers in arid regions,lowering of the ground-water level constitutes a major threat to the riparian forests,whose tree layers are dominated by Euphrates poplar(Populus euphratica).Some of these fragile ecosystems are supplied with additional(‘eco-logical’)water for protection and conservation.We investigated interrelationships among groundwater distance,stand structure and above-ground wood production(at the tree and the stand level)in P.euphratica stands along a groundwater gradient(distances of 2.0-12.0 m)that also included a plot supplied with‘ecological water’.Methods We measured the height,diameter at breast height and basal area of poplar trees and determined the annual above-ground wood production for the three most recent years on the basis of tree-ring analyses and allometric regressions at three sites at the upper,mid-dle and lower reaches of the tarim River,Xinjiang,NW china.Important Findingsthe distribution of age classes differed significantly among the plots:in accordance with their life histories,stands growing at a larger distance to the groundwater harboured a larger fraction of old trees(>80 years)and,in most cases,a smaller fraction of young trees(≤20 years).the annual above-ground wood production per ha was highest on a plot with a short groundwater distance(2.0 m;maxi-mum of the 3-year investigation period:3.0 t ha−1 a−1)and lowest,at a plot with a large distance to the water table(6.6 m;minimum:0.23 t ha^(−1)a^(−1)).However,the plot located close to the groundwater(and to the river)at the middle reaches exhibited a relatively large interannual variation in above-ground wood production,which can be attributed to interannual variations in the river discharge.At the middle and the lower reaches,these interannual variations on plots with the most favourable water supply were even more obvious at the tree level.For the fraction of mature trees(60-99 years old),no significant differences in above-ground wood production were found between the plots with the most and the least favourable water supply.Overall,the productivity at the stand level was most closely correlated with the stand density(number of trees per ha,tree cover percentage).Productivity was negatively related to tree age,whereas groundwater distance alone was not a good predictor of above-ground wood production.In conclusion,vigorous growth of P.euphratica is possible at sites with groundwater distances of up to 12 m.Supply with‘ecological water’may be beneficial to trees growing at groundwater distances not larger than~6 m.However,allocation of water should focus on stands with a short distance to the groundwater because only under these conditions,natural gen-erative reproduction of the poplars is possible. | Frank M.Thomas Michael Jeschke Ximing Zhang Petra Lang | 2017 | Journal of Plant Ecology2017，10，5： | 4 |
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