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Laparoscopic Management of Renal Paratransplant Hernia

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International Journal of Clinical Medicine 2015年第1期6卷 60-63页

作者： duncan Yoder Reza Ghasemian Medstar Georgetown Transplant Institute Washington DC USA

A renal paratransplant hernia is an unusual and potentially serious variant of an internal hernia. It is caused by entrapment of bowel through a defect in the peritoneum adjacent to the transplanted kidney. Abdominal pain and vomiting with or without distention are the main symptoms. Prompt diagnosis and early surgical intervention are critical to prevent serious morbidity and even mortality. Historically, renal paratransplant hernias were repaired via an exploratory laparotomy. we present our experience in two patients with renal paratransplant hernia who were treated with laparoscopic repair.

关键词： Renal Transplant Hernia Paratransplant Hernia Laparoscopic Repair

The PX Scanner:Room Temperature X-ray Data Collection from Protein Crystals In-situ.

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The PX Scanner:Room Temperature X-ray Data Collection from P...

wide-bandwidth drift-scan pulsar surveys of globular clusters:application to early science observations with FAST

中国晶体学会第四届全国会员代表大会暨学术会议

作者： James duncan Jiwen Cai Oxford Diffraction（Hong Kong） Limited

＜正＞The PX scanner is a umque instrument from Oxford Diffraction enabling the collection of X-ray data from protein crystals,in-situ,in the crystallisation *** PX Scanner addresses the bottleneck in high-throughput crystallisation allowing a quantitative evaluation of the diffraction properties of crystals without needing to manually extract crystals from the crystallisation plate. Coupling an optical imaging system with a powerful,high brilliance Cu X-ray source,CCD detector and intuitive user software provides an essential laboratory resource for all researchers involved in complex biological crystallography projects.

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Research in Astronomy and Astrophysics 2016年第10期16卷 11-20页

作者： Lei Zhang George Hobbs Di Li duncan Lorimer Jie Zhang Meng Yu You-Ling Yue Pei wang Zhi-Chen Pan Shi Dai School of Physics and Space Science China West Normal University National Astronomical Observatories Chinese Academy of Sciences Australia Telescope National Facility CSIRO Key Laboratory of Radio Astronomy Chinese Academy of Sciences Department of Physics and Astronomy White HallWest Virginia University National Radio Astronomy Observatory Green Bank Observatory

The Five-hundred-meter Aperture Spherical Telescope （FAST） will begin its early-science oper- ations during 2016. Drift-scan pulsar surveys will be carried out during this period using an ultra-wide-band receiver system （covering - 270 to 1620 MHz）. we describe a method for accounting for the changes in the telescope beam shape and the pulsar parameters when searching for pulsars over such a wide bandwidth. we applied this method to simulated data sets of pulsars in globular clusters that are visible to FAST and found that a representative observation would have a sensitivity of -40 ply. Our results showed that a sin- gle drift-scan （lasting less than a minute） is likely to find at least one pulsar for observations of four globular clusters. Repeated observations will increase the likely number of detections. we found that pulsars in - 16 clusters are likely to be found if the data from 100 drift-scan observations of each cluster are incoherently combined.

关键词： pulsars -- drift-scan pulsar surveys -- globular clusters

wireless Boom Is Hackers' Heaven

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当代外语研究 2005年第3期 23-24,28页

作者： duncan Graham-Rowe 浦焱青

如今,wi-Fi无线互联网络不仅深受电脑用户的欢迎,也为黑客提供了实施网络攻击的便利条件,数字入侵者的黑手可以穿过未受保护的无线传播空间非法伸进电脑,轻易窥探手提电脑中的内容。而大约90％的可移动上网设备目前都缺乏必要的保护。... 详细信息

如今,wi-Fi无线互联网络不仅深受电脑用户的欢迎,也为黑客提供了实施网络攻击的便利条件,数字入侵者的黑手可以穿过未受保护的无线传播空间非法伸进电脑,轻易窥探手提电脑中的内容。而大约90％的可移动上网设备目前都缺乏必要的保护。对于那些想要利用移动技术提高工作效率但又担心受到黑客和病毒攻击的公司和个人而言,wi-Fi成了一把双刃剑。请记住:"无线技术很棒,但安全问题更重要。"

关键词： net Heaven wireless Boom Is Hackers

A Composite Index-Based Approach for Mapping Ecosystem Service Production Hotspots and Coldspots for Priority Setting in Integrated watershed Management Programs

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Journal of Geoscience and Environment Protection 2022年第4期10卷 49-63页

作者： duncan Kikoyo Srinivasulu Ale Patricia Smith Texas A&M University College Station USA

Despite the potential synergism, integrated watershed management and ecosystem services frameworks are rarely used jointly to address the myriad of current water-related issues. The two frameworks are used in this study to spatially identify ecosystem hotspots and coldspots for priority setting in natural resource management programs. Inferred proxies of carbon storage, groundwater supply, surface water supply, and soil retention ecosystem service production potentials were quantified for Texas, U.S., using two complimentary hydro-ecological models, and valued using a non-monetary multi-criteria valuation approach. Maps of individual and composite ecosystem service values showed that several services were co-located and unevenly distributed with most of the high-value hotspots clustered in the eastern part of the state. Individual impacts of land use, climatic and soil properties on the distribution and value of ecosystem services across space were discernable. The study underscored the need for holistic management of landscapes to take advantage of the multiplicity of benefits provided by nature. The approach can readily be incorporated into resource management programs to identify high-value ecosystem service production areas that need conservation, low-value areas that may need restoration, and anthropogenic activities influencing the distribution of ecosystem services.

关键词： HAwQS InVEST Multi-Criteria Analysis Spatial Analysis Sustainability

Multigrid Solution of an Elliptic Fredholm Partial Integro-Differential Equation with a Hilbert-Schmidt Integral Operator

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Applied Mathematics 2017年第7期8卷 967-986页

作者： duncan Kioi Gathungu Alfio Borzì Institut für Mathematik Universit&auml t würzburg Würzburg Germany

An efficient multigrid finite-differences scheme for solving elliptic Fredholm partial integro-differential equations (PIDE) is discussed. This scheme combines a second-order accurate finite difference discretization of the PIDE problem with a multigrid scheme that includes a fast multilevel integration of the Fredholm operator allowing the fast solution of the PIDE problem. Theoretical estimates of second-order accuracy and results of local Fourier analysis of convergence of the proposed multigrid scheme are presented. Results of numerical experiments validate these estimates and demonstrate optimal computational complexity of the proposed framework.

关键词： Elliptic Problems Fredholm Operator Multigrid Schemes Finite Differences Numerical Analysis

土-作物-大气系统中动态根系生长及水动力学模拟

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浙江大学学报（工学版） 2009年第11期43卷 2048-2053页

作者：杨德军张土乔 ZHANG Ke-feng GREENwOOD duncan J 郭帅浙江大学建筑工程学院浙江杭州310058 华威大学国际园艺研究中心英国沃里克CV359EF

针对土-作物-大气连续系统的土壤水动力学模型对根系动态生长的模拟不理想,通过引入最新的根系生长模型理论、根长密度分布函数以及联合国粮农组织推荐的计算蒸发及蒸腾总量的模型理论,与现有的模拟水土运动的有限元程序相耦合,建立模拟... 详细信息

针对土-作物-大气连续系统的土壤水动力学模型对根系动态生长的模拟不理想,通过引入最新的根系生长模型理论、根长密度分布函数以及联合国粮农组织推荐的计算蒸发及蒸腾总量的模型理论,与现有的模拟水土运动的有限元程序相耦合,建立模拟土-作物-大气系统的水动力学模型.基于荷兰实验农场的小麦实验数据的模拟结果表明,在不同时期、不同深度处土壤中水的体积分数与实验值比较吻合;由于降雨和蒸发的上边界影响,上部土壤中水的体积分数随时间变化较快;除接近地表的个别根长密度模拟点偏差较大外,总体来说根长及根长密度模拟结果与实验值比较吻合;蒸腾量和蒸发量的模拟结果可靠.建立的新模型合理,可以有效地模拟土-作物-大气系统中的根系生长及水动力学.

关键词：水动力学土-作物-大气系统根长密度分布有限元方法

Nevirapine induces apoptosis in liver(HepG2) cells

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Asian Pacific Journal of Tropical Medicine 2016年第6期9卷 531-536页

作者： Jeerang wongtrakul Atchara Paemanee Phitchayapak wintachai Chutima Thepparit Sittiruk Roytrakul Thananya Thongtan Kanokwan Janphen Khuanchai Supparatpinyo duncan R.Smith Research Institute for Health Sciences Chiang Mai University Molecular Pathology Laboratory Institute of Molecular Biosciences Mahidol University Proteomics Research Laboratory Genome Institute National Center for Genetic Engineering and Biotechnology Department of Biochemistry Faculty of Medicine Chulalongkorn University Department of Medicine Faculty of Medicine Chiang Mai University

Objective: To generate insights into the mechanism of NVP induced hepatotoxicity. Methods: Liver(HepG2) cells were cultured with various concentrations of NVP. This cell line was chosen because it has low expression of cytochrome P450, allowing evaluation of the effects of NVP rather than specific metabolites. Cytotoxicity was determined using a proliferation assay and cell numbers were monitored using trypan blue exclusion assay for long term culture experiments and apoptosis induction was determined by morphological and biochemical investigation. Results: HepG2 cells treated with the highest concentration of NVP tested(819 μM) initially showed a rounded morphology and all cells had died by week three of exposure. Nuclear condensation and fragmentation, increased Annexin V/propidium iodide staining and caspase 9 activation all supported the induction of apoptosis in HepG2 cells in response to NVP treatment. Conclusions: There is a clear induction of apoptosis in response to NVP which suggests that NVP has significant cytotoxicity, over and above any cytotoxicity of metabolites and may contribute directly to patient hepatotoxicity.

关键词： Nevirapine Apoptosis Hepatotoxicity Cytotoxicity