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On Modeling Bio-Scaffolds:Structural and Fluid Transport Characterization Based on 3-D Imaging Data

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Tsinghua Science and Technology 2009年第S1期14卷 20-23页

作者： NOTARBERARDINO Bruno BAKER Matthew tabor Gavin TURNER Irene YANG Lincoln School of Engineering Computing and Mathematics University of Exeter Exeter EX4 4QF United Kingdom Department of Mechanical Engineering University of Bath Bath BA2 7AY United Kingdom Shanghai Gaitech Scientific Instruments Co. Ltd.

Bio-scaffolds which are most commonly open celled porous structures are increasingly used for tissue engineering and regenerative medicine. A number of studies have shown that the bulk properties of such irregular structures are poorly modeled using idealized unit cell approaches. The paper therefore uses novel image based meshing techniques to explore both fluid flow and bulk structural properties of a bone scaffold, as accurate modeling of bio-scaffolds with non-uniform cellular structures is very important for the development of optimal scaffolds for tissue engineering application. In this study, a porous hydroxyapatite/tricalcium phosphate (HA/TCP) bone scaffold has been scanned in a Micro-CT scanner, and converted into a volumetric mesh using image processing software developed by the authors. The resulting mesh was then exported to commercial FEA and CFD solvers for analysis. Initial FEA and CFD studies have shown promising results and have highlighted the importance of accurate modeling to understand how microstructures influence the mechanical property of the scaffold, and to analyze flow regimes through the sample. The work highlights the potential use of image based meshing for the ad hoc characterization of scaffolds as well as for assisting in the design of scaffolds with tailored strength, stiffness, and transport properties.

关键词： bio-scaffolds material characterization finite element computational fluid dynamics dynamics microstructures

Persistent ductus arteriosus in old patient with atrial fibrillation

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Journal of Geriatric Cardiology 2018年第5期15卷 372-375页

作者： Justyna Rajewska-tabor Bartosz Zabicki: Michal Hrycow Szymon Rozmiarek Malgorzata Pyda Department of Magnetic Resonance I Clinic of Cardiology Poznan University of Medical Sciences Poznan Poland Department of Diagnostic and Interventional Radiology Poznan University of Medical Sciences Poznan Poland

Persistent ductus arteriosus （PDA） is a congenital cardiovascular malformation connecting the pulmonary trunk of the proximal left pulmonary artery and the descending aorta distal to the left subclavian artery. Normally, the duct closes after birth as a result of a sudden increase in arterial oxygen saturation and a decrease in the level of vasoaetive prostaglandins. The incidence of persistent ductus arteriosus accounts for approximately 10% of all congenital heart diseases.

关键词： Angio-MR Atrial fibrillation CMR Elderly patients Persistent ductus arteriosus

The structure of colloidal polyethylenimine-silica nanocomposite microparticles

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Particuology 2023年第5期76卷 86-100页

作者： Alexandra Semenova Luke W.Giles Mark Louis P.Vidallon Bart Follink Paul L.Brown Rico F.tabor School of Chemistry Monash University19 Rainforest Walk.Clayton3800Australia Rio Tinto Bundoora Technical Development Centre1 Research AvenueBundoora3083Australia

Deposition of silica from an organosilane tetraethoxysilane(TEOS)onto parent polyethylenimine(PEI)microgel particles produces a novel PEI-silica nanocomposite,which possesses greater adsorption ca-pacity for copper ions than either parent *** study explores factors governing interactions of silica with the PEI matrix,along with structural features of resulting PEI-silica composite particles,to explain their properties and determine their application *** influence of initial TEOS/PEI mass ratio and the duration of silica deposition on the final silica content and distribution in the composite are studied.A comparative analysis of the structural architecture of chemically etched silica remnants,original PEI-silica composite particles and the parent PEI-microgel is carried out using X-ray photo-electron spectroscopy,small-angle X-ray scattering,and electron microscopy *** is found that silica sol nanoparticles are evenly distributed throughout the PEI-microgel framework and interlinked with it via electrostatic interactions,enabling a structural model of the PEI-silica nanocomposite to be *** chemical stability of resulting nanocomposite particles in parallel with the parent PEI-microgel is tested and shown to be robust for more than 100 days of storage in aqueous dispersions across a range of pH conditions,highlighting the application potential for these particles in copper capture.

关键词： Polyethylenimine Silica Organic-inorganic composite Nano-scale morphology Small angle X-ray scattering

中国对外直接投资对撒哈拉以南非洲和南美经济增长的影响

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中国对外直接投资对撒哈拉以南非洲和南美经济增长的影响

作者： Weronika tabor 华东师范大学

学位级别：硕士

在过去几十年中,中国实行改革开放,加入世界贸易组织,扩大投资贸易,发展对外关系,取得了举世瞩目的成就。中国在许多不同的领域,如原材料、制造业、运输业、服务业等,加强研究并寻找对外投资的商业机会。根据现有文献和数据可知,非洲和... 详细信息

在过去几十年中,中国实行改革开放,加入世界贸易组织,扩大投资贸易,发展对外关系,取得了举世瞩目的成就。中国在许多不同的领域,如原材料、制造业、运输业、服务业等,加强研究并寻找对外投资的商业机会。根据现有文献和数据可知,非洲和南美是中国近年来关注的投资地区。本文分析了2005年至2019年中国对外直接投资对9个撒哈拉以南非洲国家和9个南美洲国家经济增长的影响。数据主要来源于世界银行、联合国贸易和发展会议以及“中国全球投资跟踪”数据库。本文使用现代化理论来分析中国对外直接投资与东道国经济增长之间的关系,采用OLS方法和线性回归模型,通过控制变量检验中国对外直接投资可能会产生的影响,从而得出最终的结论。研究结果表明,中国对外直接投资对东道国经济增长具有显著影响,这种影响在南美国家比在撒哈拉以南非洲国家更为突出。此外,人口增长率(GPO)和外来直接投资(IFDI)具有统计学意义,并且与中国对外直接投资对东道国经济增长相关。庞大的人口规模可能会鼓励中国投资者在东道国积极行动。训练有素且合格的劳动者对于对制造业、服务业和自然资源行业感兴趣的中国投资者更具有吸引力,因为这些行业需要体力劳动者。对于国际直接投资来说,排挤效应还未出现在撒哈拉以南非洲和南美洲。有证据表明,投资所在国的国家内部和外部的投资者可能愿意合作并相互支持。他们可以进行共同投资,并从中获得更广泛的利益。此外,中国在发展中国家需要和寻找的生产能力和服务可能会增加。

关键词：中国对外直接投资对经济增长的影响南美洲撒哈拉以南非洲投资经济发展

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信息通讯技术英语教程

Colorectal cancer biomarkers: To be or not to be? Cautionary tales from a road well travelled

丛书名：大学专门用途英语系列教材

2012年

作者： Patrick Fitzgerald Marie McCullagh Carol tabor原

本书由12个单元组成。每个单元的内容基本上可以分为四个部分，第一部分主要介绍和集中训练相关词汇；第二部分集中训练专业知识背景下的听力或阅读技能，强调专业和语言学习过程中基本信息输入的质和量这两个要素；第三部分是上一环节... 详细信息

ISBN: (纸本)9787040352757

本书由12个单元组成。每个单元的内容基本上可以分为四个部分，第一部分主要介绍和集中训练相关词汇；第二部分集中训练专业知识背景下的听力或阅读技能，强调专业和语言学习过程中基本信息输入的质和量这两个要素；第三部分是上一环节的延续和发展，重点训练专业和语言学习过程中信息加工和产出所需要的基本技能；第四部分为口语或写作练习，强化产出技能训练。

关键词：通信技术

来源：畅想之星图书光盘版（南... 评论

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World Journal of Gastroenterology 2014年第4期20卷 888-898页

作者： Kim YC Fung Edouard Nice Ilka Priebe Damien Belobrajdic Aloke Phatak Leanne Purins Bruce tabor Celine Pompeia Trevor Lockett Timothy E Adams Antony Burgess Leah Cosgrove CSIRO Preventative Health National Research Flagship Department of Biochemistry and Molecular Biology Monash University CSIRO Computational Informatics CSIRO Materials Science and Engineering Walter and Eliza Hall Institute of Medical Research

Colorectal cancer(CRC)is the second most common cause of cancer-related death worldwide and places a major economic burden on the global health care *** time frame for development from premalignant to malignant disease typically spans 10-15 years,and this latent period provides an ideal opportunity for early detection and intervention to improve patient ***,early diagnosis of CRC is hampered by a lack of suitable non-invasive biomarkers that are clinically or economically acceptable for populationbased *** blood-based protein biomarkers for early detection of CRC are therefore urgently *** success of clinical biomarker discovery and validation studies is critically dependent on understanding and adjusting for potential experimental,analytical,and biological factors that can interfere with the robust interpretation of *** this review we outline some important considerations for research groups undertaking biomarker research with exemplars from our *** of experimental strategies to minimise the potential effects of these problems will facilitate the identification of panels of biomarkers with the sensitivity and specificity required for the development of successful tests for the early detection and surveillance of CRC.

关键词： Biomarker Bias Colorectal cancer Diagnostic Discovery Validation

Systematic review of outcomes for endoscopic sinus surgery and subsequent aspirin desensitization in aspirin-exacerbated respiratory disease

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2020年第4期6卷 220-229页

作者： Lindsey Ryan Daniel Segarra Mark tabor Arjun Parasher Department of Otolaryngology-Heat and Neck Surgery University of South Florida Morsani College of Medicine12901 Bruce B.Downs Blvd.MDC 73TampaFL 33612USA University of South Florida Morsani College of Medicine 12901 Bruce B.Downs BlvdTampaFL33612USA

Objective:To review and evaluate outcomes of patients with aspirin-exacerbated respiratory disease(AERD)following endoscopic sinus surgery and subsequent aspirin ***:Electronic searches of OVID MEDLINE(1948 to September 10,2019),EMBASE(1980 to September 10,2019),and PubMed were performed on September 10,2019.A systematic review of the literature was performed using the 2009 PRISMA *** with both preoperative and postoperative data for patients with AERD who underwent sinus surgery and aspirin desensitization were considered appropriate for *** were written in English and included patients aged 18 years or ***:Six studies met inclusion criteria for this systematic *** primary outcome measure was change in symptom profile measured by patient-reported quality of life *** results demonstrate statistically significant improvement in symptoms following endoscopic sinus surgery,with sustained improvement following aspirin *** surgery rates were significantly lower in patients maintained on aspirin ***:This review suggests that surgery followed by aspirin desensitization results in improvement in both subjective and objective outcome *** adjunctive use of aspirin desensitization allows for long-term stability in symptom *** of polyps and worsening symptoms requiring revision surgery occurs when aspirin maintenance therapy is inter-rupted.

关键词： AERD Aspirin-exacerbated respiratory disease Aspirin desensitization Endoscopic sinus surgery Nasal polyps Chronic sinusitis with nasal polyps

丙型肝炎病毒的流行与结构——HCV所致肝细胞癌会议概述

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国外医学（流行病学．传染病学分册） 1992年第4期19卷 158-161页

作者： tabor E 侯莉张景云

本文介绍了1991年3月由日本和美国从事丙型肝炎病毒(HCV)研究的专家参加的丙型肝炎病毒所致肝细胞癌(HCC)会议的概况.这次会议主要探讨了HCV与HCC的相关性,HCV的基因组结构,HCV的株变异,测定HCV感染的方法及抗HCV的治疗方法等.会议旨在... 详细信息

本文介绍了1991年3月由日本和美国从事丙型肝炎病毒(HCV)研究的专家参加的丙型肝炎病毒所致肝细胞癌(HCC)会议的概况.这次会议主要探讨了HCV与HCC的相关性,HCV的基因组结构,HCV的株变异,测定HCV感染的方法及抗HCV的治疗方法等.会议旨在通过交流最新研究进展,以加快了解HCC的病因.

关键词：丙肝病毒肝肿瘤细胞癌

Patient-specific arterial flow simulation with additional geometeic elements

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Patient-specific arterial flow simulation with additional ge...