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Supramolecular Self-assembly of Amphiphilic Alkynylplatinum(II)2,6-Bis(N-alkylbenzimidazol-2′-yl)pyridine Complexes

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Chemical Research in Chinese Universities 2021年第5期37卷 1079-1084页

作者： Andy Shun-Hoi CHEUNg Sammual Yu-Lut LEUNg Franky ka-Wah HAU Vivian Wing-Wah YAM Institute of Molecular Functional Materials and Department of Chemistry The University of Hong KongPokfulam RoadHong KongP.R.China

Alkynylplatinum(II)bzimpy complexes of trimethylammoniumbenzylethynyl ligand have been synthesized and *** with long alkyl chains have been found to exhibit interesting self-assembly properties in the acetonitrile *** amphiphilic nature of the complexes has led to the formation of nanorods,as revealed by electron microscopy *** increasing the polarity of the solvent media has given rise to the enhancement of low-energy emission.

关键词： solution. platinum alkyl

Cluster Analysis Assisted Float-Encoded genetic Algorithm for a More Automated Characterization of Hydrocarbon Reservoirs

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Intelligent Control and Automation 2013年第4期4卷 362-370页

作者： Norbert péter Szabó Mihály Dobróka Réka kavanda Department of geophysics University of Miskolc Miskolc Hungary kavreka@***

A genetic algorithm-based joint inversion method is presented for evaluating hydrocarbon-bearing geological formations. Conventional inversion procedures routinely used in the oil industry perform the inversion processing of borehole geophysical data locally. As having barely more types of data than unknowns in a depth, a set of marginally over-determined inverse problems has to be solved along a borehole, which is a rather noise sensitive procedure. For the reduction of noise effect, the amount of overdetermination must be increased. To fulfill this requirement, we suggest the use of our interval inversion method, which inverts simultaneously all data from a greater depth interval to estimate petrophysical parameters of reservoirs to the same interval. A series expansion based discretization scheme ensures much more data against unknowns that significantly reduces the estimation error of model parameters. The knowledge of reservoir boundaries is also required for reserve calculation. Well logs contain information about layer-thicknesses, but they cannot be extracted by the local inversion approach. We showed earlier that the depth coordinates of layerboundaries can be determined within the interval inversion procedure. The weakness of method is that the output of inversion is highly influenced by arbitrary assumptions made for layer-thicknesses when creating a starting model (i.e. number of layers, search domain of thicknesses). In this study, we apply an automated procedure for the determination of rock interfaces. We perform multidimensional hierarchical cluster analysis on well-logging data before inversion that separates the measuring points of different layers on a lithological basis. As a result, the vertical distribution of clusters furnishes the coordinates of layer-boundaries, which are then used as initial model parameters for the interval inversion procedure. The improved inversion method gives a fast, automatic and objective estimation to layer-boundari

关键词： Hierarchical Cluster Analysis genetic Algorithm Well-Logging Interval Inversion

基于线粒体DNA控制区序列的极边扁咽齿鱼群体遗传研究

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水产科学 2024年第1期43卷 79-87页

作者：杨濯羽杜岩岩卡伟焦文龙王太张艳萍达虎甘肃省水产研究所甘肃省冷水性鱼类种质资源与遗传育种重点实验室甘肃兰州730030 甘肃省计算中心甘肃兰州730030

极边扁咽齿鱼是黄河上游特有的裂腹鱼类,由于人类活动的加剧,使其野生数量急剧下降,近年来通过增殖放流的方式为野生资源量进行补充。为评价增殖放流过程中人工繁育群体对野生群体的种质资源的影响,笔者利用线粒体DNA控制区(D-loop)序... 详细信息

极边扁咽齿鱼是黄河上游特有的裂腹鱼类,由于人类活动的加剧,使其野生数量急剧下降,近年来通过增殖放流的方式为野生资源量进行补充。为评价增殖放流过程中人工繁育群体对野生群体的种质资源的影响,笔者利用线粒体DNA控制区(D-loop)序列来探究极边扁咽齿鱼野生和养殖的4个群体遗传多样性、遗传分化及遗传结构的差异。研究结果显示,4个群体均表现出了较高的单倍型多样性(0.950±0.011)和较低的核苷酸多样性(0.00987±0.00041),并且野生群体的单倍型数目、单倍型多样性指数、核苷酸多样性指数均高于人工繁育群体。遗传结构分析结果显示,野生群体与人工繁育群体之间已产生了一定的遗传分化。中性检验表明,2个野生群体可能经历过种群扩张事件。研究结果表明,极边扁咽齿鱼人工繁育群体可能受到亲本数量有限、人工选择等影响,遗传多样性略有降低,有必要定期开展增殖放流效果的评估,并采用科学的人工繁育方法,丰富极边扁咽齿鱼种群的遗传多样性。

关键词：极边扁咽齿鱼线粒体DNA控制区野生群体人工繁育群体遗传多样性

“Fast Track”nasogastric decompression of rectal cancer surgery

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Frontiers of Medicine 2011年第3期5卷 306-309页

作者： ka Li Zongguang Zhou Zengrong Chen Yi Zhang Cun Wang Department of gastrointestinal Surgery West China HospitalSichuan UniversityChengdu 610041China Institute of Digestive Surgery West China HospitalSichuan UniversityChengdu 610041China

This study evaluates the application of fast track(FT)nasogastric decompression in patients who underwent anterior resection of rectal cancer.A randomized control trial was performed comparing the group with the fast track treatment(n=57)and the group with traditional nasogastric decompression(n=84).preoperative characteristics and postoperative recovery indices were recorded and *** results indicate no significant differences in gender(p=0.614),age(p=0.653),tumor location(p=0.113),and TNM stages(p=0.054)were observed between the 2 *** differences in the type of resection,anastomosis,and adoption of protective colostomy were all not significant between the FT and the traditional *** the first 24 hours after surgery,the volume of nasogastric drainage averaged 197 ml in the FT group and 155 ml in the traditional group(p=0.197).The initiation of test-meal(p=0.000),semiliquid diet(p=0.002),and ordinary diet(p=0.008)were all significantly shorter in the FT ***,compared with the other group,the patients in the FT group enjoyed earlier removal of the abdominal drainage,urinary catheter,and shorter hospital stays(p=0.000).Based on a correlation test,the duration of nasogastric decompression is related to the time of test-meal and semiliquid *** routine usage of nasogastric decompression in rectal surgery is *** fast track procedure might help in facilitating postoperative functional and diet recovery,reducing the time of catheterization,and shortening hospital stay.

关键词： fast track nasogastric decompression rectal cancer surgery

Study of TiO_2 thin films on Si substrate by the photoacoustic elastic bending method

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Science China(physics,Mechanics & Astronomy) 2013年第7期56卷 1285-1293页

作者： TODOROVI Dragan M RABASOVI Mihailo D MARKUSHEV Dragan D FRANKO Mladen TANgAR Urka Lavreni Institute for Multidisciplinary Research University of Belgrade Institute of physics University of Belgrade Laboratory for Environmental Research University of Nova Gorica

The quantitative photoacoustic investigation of different TiO2 thin films on Si substrates is presented using the elastic bending method. photoacoustic signal amplitude and phase spectra versus modulation frequency were measured and analyzed using different sample thicknesses. Within the proposed method particular attention is given to the analysis of optical, thermal, elastic and structural sample parameters. Considerable focus is devoted to the fitting procedure of experimental results using the two-layer sample theoretical model. Characteristics of previously developed photoacoustic apparatus are discussed, attempting to search the ideal experimental conditions which can provide a good signal-to-noise ratio and sensitivity.

关键词： photoacoustic TiO2 thin films

2018—2020年新疆生产建设兵团生活饮用水水质影响因素

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环境与健康杂志 2024年第5期41卷 416-419页

作者：田强霞李凡卡美丽克汗·牙生石河子大学医学院预防医学系新疆石河子832008 新疆生产建设兵团疾病预防控制中心卫生科

目的了解新疆生产建设兵团饮用水卫生现状及影响因素。方法于2018—2020年枯水期(1—5月、11—12月)、丰水期(6—10月),对新疆生产建设兵团饮用水水样进行采集、分析和评价。运用多因素logistic回归分析水质的影响因素。结果2018—2020... 详细信息

目的了解新疆生产建设兵团饮用水卫生现状及影响因素。方法于2018—2020年枯水期(1—5月、11—12月)、丰水期(6—10月),对新疆生产建设兵团饮用水水样进行采集、分析和评价。运用多因素logistic回归分析水质的影响因素。结果2018—2020年共检测水样7557件,总合格率为74.29%,合格率呈逐年升高的趋势(χ^(2)=141.391,pgistic回归分析结果显示,地下水、大型集中式供水、有卫生许可证、经常规处理、消毒和按要求使用消毒设备的水样合格率较高(p<0.01)。结论新疆生产建设兵团饮用水的水质状况良好,影响水质合格率的主要因素是水源类型、供水规模、是否有卫生许可证、是否常规处理、是否消毒、是否按要求使用消毒设备。

关键词：生活饮用水合格率影响因素

FR-Ⅲ型矫治器对不同生长发育期Ⅲ类错牙合颅面结构的影响

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临床口腔医学杂志 2024年第7期40卷 402-406页

作者：王晨林沅佑陈嘉婷赵立星口腔疾病研究国家重点实验室国家口腔疾病临床医学研究中心四川大学华西口腔医院正畸科四川成都610041

目的:对不同生长发育期的安氏Ⅲ类错牙合畸形,根据颈椎骨龄分期分组,通过对正畸治疗前后头颅侧位片的测量分析,比较不同生长发育期开展FR-Ⅲ型矫治器治疗的颅面部效果差异。方法:选取34例使用FR-Ⅲ型矫治器治疗,处于生长发育期的安氏Ⅲ... 详细信息

目的:对不同生长发育期的安氏Ⅲ类错牙合畸形,根据颈椎骨龄分期分组,通过对正畸治疗前后头颅侧位片的测量分析,比较不同生长发育期开展FR-Ⅲ型矫治器治疗的颅面部效果差异。方法:选取34例使用FR-Ⅲ型矫治器治疗,处于生长发育期的安氏Ⅲ类患者,根据颈椎骨龄分期分组:生长发育高峰前期组(CVMⅠ~Ⅱ期)、生长发育高峰期组(CVMⅢ~Ⅳ期)。使用Dolphin 11.8软件对患者颅面结构进行X线头影测量分析。结果:治疗后SNA角、ANB角、U1-SN角、U1-Apog距和覆盖、NA-pA角均显著增大(p1);Z角亦增大(ppog′角、N′-Sn-pog′角和IMpA角显著减小(p1)。比较生长发育高峰前期组和高峰期组FR-Ⅲ型矫治器矫治前后的差值,高峰期组SNB角、Mp-SN差值绝对值显著大于高峰前期组(p<0.05)。结论:FR-Ⅲ型矫治器可促进上颌骨向前生长,改善软组织侧貌,但没有显著抑制下颌骨生长。在生长发育高峰前期矫治,促进上颌骨向前生长的可能性更大,在高峰期矫治会引起下颌骨顺时针旋转。

关键词：安氏Ⅲ类错牙合 FR-Ⅲ型矫治器颈椎骨龄

HEφTEГA3OHOCHOCTb 3Oh лABNHHON CEдNMEHTALINN B HEOKOME 3AлAПAдHON CNьNpN

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新疆石油地质 2001年第2期22卷 172-176页

作者： ЕpШOBC.B. kaэаненkoвB.A. kароroдиню.H. ИHCTHTYTreoпrиннефтннraaaCибнpckoroOтдениБpoccийckoйAkaдemиинayk HoBocибHpck630090PoccиБ

Resection of T4 hepatocellular carcinomas with adjacent structures, is it justified？

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Hepatobiliary & pancreatic Diseases International 2017年第1期16卷 52-57页

作者： Kenneth SH Chok ka Kin Ng Tan To Cheung Albert CY Chan See Ching Chan Chung Mau Lo Department of Surgery The University of Hong Kong

BACKgROUND： T4 hepatocellular carcinoma （HCC） with invasion to adjacent structure（s） may require resection of not only the tumor but also the invaded structure（s）. This study aims to assess whether such combined resection for T4 HCC is justifiable. METHODS： Adult patients with T4 HCC were divided into three groups. group 1： tumors and invaded adjacent structures were resected together if histopathologically confirmed tumor invasion; group 2： same as group 1 but histopathologically confirmed tumor adhesion; group 3： tumor resection only. group comparisons were made. RESULTS： Totally 144 patients were included in the study. There were 71, 14 and 59 patients in groups 1, 2 and 3, respec- tively. The groups were comparable in demographics, compli- cation and survival. Ten hospital deaths occurred （5, 0 and 5 in groups 1, 2 and 3, respectively; p=0.533）. The 5-year overall survival （hospital mortality excluded） was 17.8% in group 1, 14.3% in group 2, and 28.9% in group 3 （p=0.191）. The 5-year disease-free survival was 10.4% in group 1 and 14.5% in group 3 （no data for group 2 yet）（p=0.565）. On multivariate analysis, macrovascular invasion and poor differentiation were risk factors for survival whereas combined resection did not impact patients＇ survival. CONCLUSIONS： Combined resection achieved survival outcomes similar to tumor resection only. patients with tumor invasion and those with tumor adhesion had comparable survival after combined resection. At centers with the required expertise, combined resection should be attempted to treat T4 HCCs with clinically suspected invasion of adjacent structures.

关键词： desmosplastic reaction en-bloc resection hepatocellular carcinoma invasion recurrence