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NUMERICAL SIMULATION OF HEMODYNAMICS IN THE HOST BLOOD VESSEL AND MICROVASCULAR NETwORK GENERATED FROM TUMOR-INDUCED ANGIOGENESIS

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Journal of Hydrodynamics 2006年第6期18卷 727-735页

作者： ZHAO Gai-ping wU Jie XU Shi-xiong COLLINS M.w. JIANG Yu-ping wANG Jian Department of Mechanics and Engineering Science Fudan University Shanghai 200433 China Brunel Institute for Bioengineering School of Engineering and Design Brunel University Uxbridge MiddlesexUB8 3PH UK Department of Neurology Huashan Hospital Fudan University Shanghai 200040 China

Numerical simulation of hemodynamics under the combined effects of both the host blood vessel and the microvascular network, which is based on a 2-D tumor inside and outside vascular network generated from a discrete mathematical model of tumor-induced angiogenesis, is performed systemically. And a ＂microvascular network-- transport across microvascular network--flow in interstitium＂ model is developed to study the flow in solid tumor. Simulations are carried out to examine the effects of the variations of the inlet Reynolds number in the host blood vessel, the hydraulic conductivity of the microvascular wall, and interstitial hydraulic conductivity coefficient on the fluid flow in tumor microcirculation. The results are consistent with data obtained in terms of physiology. These results may provide some theoretical references and the bases for further clinical experimental research.

关键词： solid tumors host blood vessel microvascular network hemodynamics numerical simulation

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哈姆雷特

Dependence of interface energetics and kinetics on catalyst loading in a photoelectrochemical system

作者： (英)w.·莎士比亚(w. Shakespeare)

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Nano Research 2019年第9期12卷 2378-2384页

作者： Yumin He Srin ivas Vanka Tianyue Gao Da He Jeremy Espano Yanyan Zhao Qi Dong Chaochao Lang Yongjie wang Thomas w. Hamann Zetian Mi Dunwei wang Department of Chemistry Merkert Chemistry CenterBoston College2609 Beacon StreetChestnut HillMassachusetts 02467USA Department of Electrical Engineering and Computer Science University of Michigan1301 Beal AvenueAnn ArborMichigan 48109USA Department of Chemistry Michigan State UniversityEast LansingMichigan 48824USA Department of Electrical and Computer Engineering McGill University3480 University StreetMontrealQuebecH3A 0E9Canada

Solar hydrogen production by the photoelectrochemical method promises a means to store solar *** it is generally understood that the process is highly sensitive to the nature of the interface between the semiconductor and the electrolyte,a detailed understanding of this interface is still *** instance,few prior studies have established a clear relationship between the interface energetics and the catalyst loading *** we aim to study this relationship on a prototypical Si-based photoelectrochemical *** types of interfaces were examined,one with GaN nanowires as a protection layer and one *** was found that when GaN was present,higher Pt loading (> 0.1 μg/cm2) led to not only better water reduction (and,hence,hydrogen evolution) kinetics but also more favorable interface energetics for greater *** the absence of the protection layer,by stark contrast,increased Pt loading exhibited no measurable influence on the interface energetics,and the main difference was observed only in the hydrogen evolution *** study sheds new light on the importance of interface engineering for further improvement of photoelectrochemical systems,especially concerning the role of catalysts and protection layers.

关键词： photoelectrochemistry water splitt ing Si hydroge n evolutio n catalyst nano wires

THE EFFECT OF MINE TAILINGS ON LEVELS OF HEAVY METALS IN SEAwATER

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Acta Oceanologica Sinica 1986年第3期5卷 401-415页

作者： C.S.wONG,F.A.wHITNEY,w.K.JOHNSON,LU XIANKUN,wUJINPING,wUSHENGSAN,LIJINXIA Ocean Chemistry Division Institute of Ocean Sciences Sidney B.C. Canada Ocean Chemistry Division Institute of Ocean Sciences Sidney B.C. Canada Ocean Chemistry Division Institute of Ocean Sciences Sidney B.C. Canada Shandong College of Oceanology Qingdao China Third Institute of Oceanography State Oceanic Administration Xiamen China Third Institute of Oceanography State Oceanic Administration Xiamen China Third Institute of Oceanography State Oceanic Administration Xiamen China

Changes in levels of heavy metals in seawater resulting from the addition of mine tailings were studied using plastic enclosures. Nominal concentrations of 10 mg l-1 and 100 mg l-1 of mine tailings from a B. C. molybdenum mine were added, and the metal levels were followed together with sedimentation rates, particle size distribution and other oceanographic and biological time-series parameters over sixteen days. No substantial elevation in levels of zinc, cadmium and copper was observed in the tailing bags compared to that in a background control bag with no addition of tailings. Lead showed a substantial increase in seawater following tailing addition and its removal apparently was with detritus settling following a plankton bloom, and inorganic settling of fine tailing particles.

关键词： Pb THE EFFECT OF MINE TAILINGS ON LEVELS OF HEAVY METALS IN SEAwATER Cd

Current laser therapy options for endoscopic treatment of upper tract urothelial carcinoma

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Current Urology 2023年第1期17卷 62-67页

作者： Benjamin w.Zollinger Ezra J.Shoen Charles F.Gresham Michael J.whalen George washington School of Medicine and Health Sciences WashingtonDCUSA Department of Urology Icahn School of MedicineMount Sinai HospitalNew YorkNYUSA Department of Urology George Washington University HospitalWashingtonDCUSA

Endoscopic management via retrograde ureteroscopic laser ablation of upper tract urothelial carcinoma(UTUC)has become the preferred treatment modality for low-risk *** most popular ablative lasers over the past 15-20 years have been the holmium:yttrium-aluminum-garnet(Ho∶YAG)and neodymium(Nd∶YAG)lasers,but recently the thulium(Th∶YAG)laser has emerged as a potential *** review compares the mechanism of action,physiological properties and effects,and oncologic outcomes of Ho∶YAG/Nd∶YAG lasers versus the Th∶YAG laser for UTUC *** advantages of the Th∶YAG laser over existing technologies are outlined,followed by a discussion of emerging laser technologies in UTUC management.

关键词： Endoscopic management Holmium laser Laser ablation Thulium laser Upper tract urothelial carcinoma

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热情或冷淡对教学能力的影响

心理学探新 1989年第2期14卷 49-52页

作者：陈纪方荆建华 w.Neil wildmeyer Tohn w.Loy 河南教育学院教育系

我们检验了凯利的热情或冷淡控制对于人的第一印象和教学能力影响的研究。一位主持人以宝座教授的身分给240名大学生上了一堂课。在他到来之前,半数受试了解到他是一个相当热情的人,另一半受试则得知他是冷淡的,照此办理,告诉上述每一... 详细信息

我们检验了凯利的热情或冷淡控制对于人的第一印象和教学能力影响的研究。一位主持人以宝座教授的身分给240名大学生上了一堂课。在他到来之前,半数受试了解到他是一个相当热情的人,另一半受试则得知他是冷淡的,照此办理,告诉上述每一组中的一半受试他是一位体育教授,另一半受试则被告知他是社会心理学教授。对2(热情或冷淡条件)×2(主持人的专业)×2(受试的性别)的多元方差分析表明:(a)预先得知主持人是热情的受试比被告知他是冷淡的受试更倾向于认为他是一个有能力的教师,一个令人愉快,和蔼可亲,温文尔雅,幽默活泼的人。(b)主持人的专业和受试的性别都不影响受试对教师的认知。结果讨论涉及到晕轮、前后关系和身分影响的问题。

关键词：教师教学能力主持人社会心理学冷淡凯利第一印象人格品质体育评价学生

Soil type limits population abundance of rodents in crop fields:case study of the multimammate rat Mastomys natalensis Smith,1834 in Tanzania

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Integrative Zoology 2008年第1期3卷 27-30页

作者： Apia w.MASSAwE winnie RwAMUGIRA Herwig LEIRS Rhodes H.MAKUNDI Loth MULUNGU V.NGOwO Robert MACHANG’U Pest Management Centre Sokoine University of AgricultureMorogoroTanzania Crop Science and Production Sokoine University of AgricultureMorogoroTanzania Evolutionary Biology Group University of AntwerpAntwerpBelgium Danish Pest Infestation Laboratory Danish Institute of Agricultural SciencesKongens LyngbyDenmark Rodent Control Centre MorogoroTanzania

Studies of populations of the multimammate rat Mastomys natalensis in Morogoro, Tanzania, show that soil textureappears to influence the population abundance and distribution of these rats in agricultural fields. The lowest rodentpopulation abundance was found on sandy clay soils (F(2, 5) = 8.42;P = 0.025). The population abundances of *** on sandy clay loam and sandy loam soils did not differ significantly (P ≤ 0.05), possibly because thesesoils have a very similar texture. The results of this study suggest that M. natalensis prefers loam-textured soilswith a high percentage of sand, which are probably better than clay soils for burrowing and nesting, particularly inthe rainy season. The lower preference for clay soils is probably related to the poor aeration in these soils and thewaterlogging that occurs during the wet season.

关键词： Mastomys population soil texture Tanzania.

Outcomes of side-to-side conversion hepaticojejunostomy for biliary anastomotic stricture after right-liver living donor liver transplantation

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Hepatobiliary & Pancreatic Diseases International 2013年第1期12卷 42-46页

作者： Kenneth SH Chok See Ching Chan Tan To Cheung Albert CY Chan william w Sharr Sheung Tat Fan Chung Mau Lo Department of Surgery The University of Hong Kong102 Pokfulam RoadHong KongChina State Key Laboratory for Liver Research The University of Hong Kong102 Pokfulam RoadHong KongChina

BACKGROUND:Conversion hepaticojejunostomy is considered the salvage intervention for biliary anastomotic stricture,a common complication of right-liver living donor liver transplantation with duct-to-duct anastomosis,after failed endoscopic *** aim of this study is to compare the outcomes of side-to-side hepaticojejunostomy with those of endto-side ***:Prospectively collected data of 402 adult patients who had undergone right-liver living donor liver transplantation with duct-to-duct anastomosis were *** of biliary anastomotic stricture was made based on clinical,biochemical,histological and radiological *** treatment was the first-line treatment of biliary anastomotic ***:Interventional radiological or endoscopic treatment failed to correct the biliary anastomotic stricture in 13 patients,so they underwent conversion *** of them received end-to-side hepaticojejunostomy and three received side-to-side *** the end-to-side group,two patients sustained hepatic artery injury requiring repeated microvascular anastomosis,two developed restenosis requiring further percutaneous transhepatic biliary drainage and balloon dilatation,and two required revision *** the side-to-side group,one patient developed re-stenosis requiring further endoscopic retrograde cholangiography and balloon *** re-operation was needed in this ***,outcomes in the two groups were similar in terms of liver function and graft ***:Despite the similar outcomes,side-to-side hepaticojejunostomy may be a better option for bile duct reconstruction after failed interventional radiological or endoscopic treatment because it can decrease the chance of hepatic artery injury and allows future endoscopic treatment if re-stricture ***,more large-scale studies are warranted to validate the results.

关键词： right-liver endoscopic treatment living donor liver transplantation biliary anastomotic stricture duct-to-duct anastomosis hepaticojejunostomy

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