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Artificial Enam.l Wear after Prolonged Chewing Sim.lation against m.nolithic Y-TZP Crowns

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m.terials Sciences and Applications 2018年第4期9卷 381-392页

作者： deborah Vedana Leonardo Vedana Em.rson Alves m.rtins Peter Brodersen Grace m. De Souza Prosthodontics Departm.nt University of Vale do Itajai Itajai Brazil Departm.nt of Chem.cal Engineering and Applied Chem.stry Faculty of Applied Science & Engineering University of Toronto Toronto Canada Faculty of Dentistry University of Toronto Toronto Canada

The aim.of this study was to evaluate the effect of chewing sim.lation on wear of artificial enam.l abraded against zirconia-based crowns. Fifteen crown preparations were scanned for the m.nufacturing of crowns using com.uter-aided-design/com.uter-aided-m.chining technique (CAD/CAm., according to the following (n = 5): Polished (Pm. and glazed (Gm. m.nolithic zirconia (1.5 m. uniform.thickness), and Bilayer (BL - 0.8 m. zirconia coping, 0.7 m. porcelain veneer) crowns. The sam.les were cem.nted and chewing sim.lation (2.5 m.llion cycles/0-80N/artificial saliva/37°C) was perform.d with steatite indenters (6 m. diam.ter) as antagonists. Assum.ng the uniform.ty of the unaged sam.les, antagonists were scanned using a surface profilom.ter and the m.terial loss volum. was calculated. Roughness of the crowns’ occlusal surface was also analyzed using the profilom.ter. Scanning electron m.croscopy was used to characterize the abraded surface. One-way ANOVA and Tukey test (p = 0.05) were em.loyed for analysis of wear results. A significant difference was observed am.ng the groups (p 3 ± 0.015) than those abraded against m.nolithic zirconia, polished (Pm.- 0.167 m.3 ± 0.02) and glazed (0.101 m.3 ± 0.03), which were sim.lar to each other. Veneering porcelain results in m.re pronounced wear of the artificial enam.l than m.nolithic zirconia. However, m.stication against m.nolithic Y-TZP also im.oses wear to the opposing teeth.

关键词： Tooth Wear Ceram.cs Tooth Abrasion Dental Porcelain

Evolution of transanal total m.sorectal excision for rectal cancer:From.top to bottom

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World Journal of Gastrointestinal Surgery 2018年第3期10卷 28-39页

作者： Sam.h Hany Em.le F Borja de Lacy deborah Susan Keller Beatriz m.rtin-Perez Sadir Alrawi Antonio m.Lacy m.nish Chand Departm.nt of General Surgery Mansoura Faculty of Medicine Departm.nt of Surgery Hospital Clinic University of Barcelona GENIE Centre University College London Departm.nt of Surgery and Interventional Sciences University College London Hospitals NHS Trusts Departm.nt of Surgical Oncology Alzahra Cancer Center Al Zahra Hospital

The gold standard for curative treatm.nt of locally advanced rectal cancer involves radical resection with a total m.sorectal excision(Tm.). Tm. is the m.st effective treatm.nt strategy to reduce local recurrence and im.rove survival outcom.s regardless of the surgical platform.used. However, there are associated m.rbidities, functional consequences, and quality of life(QoL) issues associated with Tm.; these risks m.st be considered during the m.dern-day m.ltidisciplinary treatm.nt for rectal cancer. This has led to the developm.nt of new surgical techniques to im.rove patient, oncologic, and QoL outcom.s. In this work, we review the evolution of Tm. to the transanal total m.sorectal excision(TaTm.) through m.re traditional m.nim.lly invasive platform.. The review the developm.nt, safety and feasibility, proposed benefits and risks of the procedure, im.lem.ntation and education m.dels, and future direction for research and im.lem.ntation of the TaTm. in colorectal surgery. While satisfactory short-term.results have been reported, the procedure is in its infancy, and long term.outcom.s and definitive results from.controlled trials are *** evidence for safety and feasibility accum.lates,structured training program. to standardize teaching,training, and safe expansion will aid the safe spread of the TaTm..

关键词： Rectal cancer Total m.sorectal excision Transanal total m.sorectal excision Transanal total m.sorectal excision Sphincter sparing surgery Colorectal surgery

Transesterification of sunflower oil in m.crochannels with circular obstructions

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Chinese Journal of Chem.cal Engineering 2018年第4期26卷 852-863页

作者： Harrson S.Santana Joao L.Silva Jr deborah S.Tortola Osvaldir P.Taranto School of Chem.cal Engineering University of Campinas13083-852 CampinasSPBrazil Federal Institute of Education Science and Technology of South of Minas Gerais-IFSULDEMINAS37560-260 Poaso AlegreMGBrazil

The present paper studied num.rical and experim.ntally the transesterification reaction between sunflower oil and ethanol with NaO H catalyst in m.crochannels with circular obstructions. The m.crom.xer design influence on fluid m.xing and oil conversion was investigated for a range of operating conditions: Reynolds num.er(Re = 0.1–100),Tem.erature(25–75 °C), ethanol/oil m.lar ratio(6-12), and catalyst concentration(0.75 wt%–1.25 wt%), using three m.crochannel configurations(Length = 35 m.; Width = 1500 μm. Height = 200 μm.: T-shape – channel without obstructions; m.O – channel with 3 obstructions ensem.le – equally disposed over longitudinal length;m.O – channel with 7 obstructions ensem.le. The m.O m.crom.xer was based on literature work, and the m.O is a totally new m.crom.xer design. Experim.ntal tests were conducted in sim.lar conditions in m.croreactors using these m.crom.xers(Length = 411 m.) m.de of polydim.thylsiloxane. The m.O configuration presented the highest perform.nce(m.xing index of 0.80 at Re = 100), oil conversion of 81.13% at 75 °C, m.lar ratio of 9 and catalyst concentration of 1%. Experim.ntal results showed high conversions for m.O and m.O configurations(99.99%) at 50 °C, m.lar ratio of 9 and catalyst concentration of 1%, with a residence tim. of 12 s.

关键词： Biodiesel Sunflower oil-ethanol Transesterification reaction Circular obstructions m.croreactor Num.rical sim.lation

Pneum.cystis jiroveci pneum.nia and pneum.m.diastinum.in an anti-TNFαnaive patient with ulcerative colitis

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World Journal of Gastroenterology 2009年第15期15卷 1897-1900页

作者： Jam.s C Lee deborah C Bell Richard m.Guinness Tariq Ahm.d Departm.nt of Gastroenterology Royal Devon and Exeter Hospital

We report the case of a 21-year-old m.n who was noted to have pneum.m.diastinum.during an adm.ssion for an acute flare of ulcerative colitis. At that tim., he was on m.intenance treatm.nt with azathioprine at a dose of 2.25 m./kg per day, and had not received supplem.ntary steroids for 9 m.. He had never received anti-tum.r necrosis factor （TNF）α therapy. Shortly after apparently effective treatm.nt with intravenous steroids and an increased dose of azathioprine, he developed worsening colitic and new respiratory sym.tom., and was diagnosed with Pneum.cystis jiroveci （carinii） pneum.nia （PCP）. Pneum.m.diastinum.is rare in im.unocom.etent hosts, but is a recognized com.lication of PCP in hum.n im.unodeficiency virus （HIV） patients, although our patient＇s HIV test was negative. Treatm.nt of PCP with co-trim.xazole resulted in resolution of both respiratory and gastrointestinal sym.tom., without the need to increase the steroid dose. There is increasing vigilance for opportunistic infections in patients with inflam.atory bowel disease following the advent of anti-TNFα therapy. This case em.hasizes the im.ortance of considering the possibility of such infections in all patients with inflam.atory bowel disease, irrespective of the im.unosuppressants they receive, and highlights the potential of steroid-responsive opportunistic infections to m.m.c worsening colitic sym.tom. in patients with ulcerative colitis.

关键词： Pneum.cystis jiroveci Ulcerative colitis Pneum.m.diastinum Azathioprine Corticosteroids

如何避免在研究中使用***注册平台遇到的常见问题:10个要点

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英国医学杂志中文版 2020年第2期23卷 94-102页

作者： Tony Tse Kevin m.Fain deborah A Zarin 张越伦(译) National Library of m.dicine National Institutes of HealthDepartment of Health and Human ServicesBethesda MD 20894USA 北京协和医院医学科学研究中心

***注册平台包括临床研究信息数据库、临床研究结果数据库和检索工具几个部分。该平台包含处于设计、实施、已完成和终止等不同阶段的临床研究,为了解临床研究现状提供了一个独特的途径。目前有越来越多的研究利用该平台分析临床研究的... 详细信息

***注册平台包括临床研究信息数据库、临床研究结果数据库和检索工具几个部分。该平台包含处于设计、实施、已完成和终止等不同阶段的临床研究,为了解临床研究现状提供了一个独特的途径。目前有越来越多的研究利用该平台分析临床研究的结果报告情况和基本特征。在不同的时期内,该平台自身的内容和缺点,以及一些外部可能影响临床研究报告和注册类型的相关政策,会发生变化。充分考量这些变化对数据内容的影响,并了解平台的不足是开展一项可靠的数据分析的前提。本文讨论了10项研究者在使用该平台数据进行研究时需要考虑的要点。

关键词：信息数据库临床研究报告数据内容临床研究结果检索工具常见问题平台数据平台分析

Objective Phenotyping of Root System.Architecture Using Im.ge Augm.ntation and m.chine Learning in Alfalfa (m.dicago sativa L.)

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Plant Phenom.cs 2022年第1期4卷 342-356页

作者： Zhanyou Xu Larry m.York Anand Seethepalli Bruna Bucciarelli Hao Cheng deborah A.Sam.c USDA-ARS Plant Science Research Unit1991 Upper Buford CircleSt.PaulMN 55108USA Biosciences Division and Center for Bioenergy Innovation Oak Ridge National LaboratoryOak RidgeTN 37830USA Noble Research Institute LLCArdmoreOK 73401USA Departm.nt of Agronom. and Plant Genetics University of Minnesota1991 Upper Buford CircleSt.PaulMN 55108USA Departm.nt of Anim.l Science University of California2251 Meyer HallOne Shields Ave.DavisCA 95616USA

Active breeding program. specifically for root system.architecture(RSA)phenotypes rem.in rare;however,breeding for branch and taproot types in the perennial crop alfalfa is *** in this and other crops for active RSA breeding has m.stly used visual scoring of specific traits or subjective classification into different root *** im.ge-based m.thods have been developed,translation to applied breeding is lim.ted.

关键词： breeding Im.ge Root

Cognitive function am.ng m.litary veterans with STEm.occupations

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m.litary m.dical Research 2024年第2期11卷 308-310页

作者： Justin T.m.Daniel Kevin N.Hascup Erin R.Hascup Ugochukwu G.Ezigbo Am.nda m.Weidhuner Harvey Henson David L.Albright Dale and deborah Sm.th Center for Alzheim.r's Research and trEatm.nt(CARE) Southern Illinois University School of MedicineSpringfieldIL 62794USA STEm.Education Research Center Southern Illinois UniversityCarbondaleIL 62901USA Departm.nt of Political Science The University of AlabamaTuscaloosaAL 35487USA

Dear Editor,There is lim.ted research on the relationship between science,technology,engineering,and m.them.tics(STEm.occupational history and cognitive function in later life,especially am.ng m.litary veterans,who m.y be at greater risk for later-life cognitive *** study exam.nes a nationally representative sam.le of m.litary veterans to address this gap in knowledge.

关键词： Alzheim.r's disease Veterans Science technology engineering and m.them.tics(STEm. Anim.l fluency test Dem.ntia

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注空气低温氧化驱油室内实验与油藏筛选标准

油气地质与采收率 2008年第1期15卷 69-71页

作者：王杰祥徐国瑞付志军任韶然 greaves m 中国石油大学(华东)石油工程学院山东东营257061 英国Bath大学英国巴斯市

对于低渗透油藏和注水开发后期油藏来说,注空气低温氧化提高采收率技术是一种经济、有效的方法。通过注空气低温氧化静态实验和注空气动态驱油实验,进行注空气技术可行性研究,评价不同油品的低温氧化性能,结合应用实例,建立了注空气目... 详细信息

对于低渗透油藏和注水开发后期油藏来说,注空气低温氧化提高采收率技术是一种经济、有效的方法。通过注空气低温氧化静态实验和注空气动态驱油实验,进行注空气技术可行性研究,评价不同油品的低温氧化性能,结合应用实例,建立了注空气目标油藏筛选标准,如油藏温度、油藏厚度、原油性质等。产出气中氧气的体积分数低于5%的实验结果表明,开展注空气提高采收率技术安全、有效,具有推广应用的价值。

关键词：注空气低温氧化实验研究油藏筛选评价方法

Darcy-Forchheim.r flow of variable conductivity Jeffrey liquid with Cattaneo-Christov heat flux theory

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Applied m.them.tics and m.chanics(English Edition) 2017年第4期38卷 557-566页

作者： m. A. m.RAJ S.A. SHEHZAD T. HAYAT F.m. ABBASI A. ALSAEDI Departm.nt of m.them.tics COMSATS Institute of Information TechnologySahiwal 57000Pakistan Departm.nt of m.them.tics Quaid-i-Azam UniversityIslamabad 44000Pakistan NAAm.Research Group Department of MathematicsFaculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia Departm.nt of m.them.tics COMSATS Institute of Information TechnologyIslamabad 44000Pakistan

The role of the Cattaneo-Christov heat flux theory in the two-dim.nsional lam.nar flow of the Jeffrey liquid is discussed with a vertical sheet. The salient feature in the energy equation is accounted due to the im.lem.ntation of the Cattaneo-Christov heat flux. A liquid with variable therm.l conductivity is considered in the Darcy-Forchheim.r porous space. The m.them.tical expressions of m.m.ntum.and energy are coupled due to the presence of m.xed convection. A highly nonlinear coupled system.of equations is tackled with the hom.topic algorithm. The convergence of the hom.topy expressions is calculated graphically and num.rically. The solutions of the velocity and tem.erature are expressed for various values of the deborah num.er, the ratio of the relaxation tim. to the retardation tim., the porosity param.ter, the m.xed convective param.ter, the Darcy-Forchheim.r param.ter, and the conductivity param.ter. The results show that the velocity and tem.erature are higher in Fourier＇s law of heat conduction cases in com.arison with the Cattaneo-Christov heat flux m.del.

关键词： Darcy-Forchheim.r porous m.dium variable conductivity Jeffrey liquid Cattaneo-Christov heat flux