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Journal of Environmental Sciences 2023年第6期128卷 55-70页

作者： dustin M.E.Lillico Nora A.S.Hussain Yemaya Y.Choo-Yin Rui Qin Zuo Tong How Mohamed Gamal El-Din James L.Stafford Department of Biological Sciences University of AlbertaAlberta T6G 2E9Canada Department of Civil and Environmental Engineering University of AlbertaAlberta T6G 2E9Canada

In this study,we provide evidence that oil sands process-affected waters(OSpW)contain factors that activate the antimicrobial and proinflammatory responses of immune ***,using the murine macrophage RAW 264.7 cell line,we establish the bioactivity of two different OSpW samples and their isolated ***,we directly compared the bioactivity of two pilot scale demonstration pit lake(DpL)water samples,which included expressed water from treated tailings(termed the before water capping sample;BWC)as well as an after water capping(AWC)sample consisting of a mixture of expressed water,precipitation,upland runoff,coagulated OSpW and added *** inflammatory(*** activating)bioactivity was associated with the AWC sample and its organic fraction(OF),whereas the BWC sample had reduced bioactivity that was primarily associated with its inorganic fraction(IF).Overall,these results indicate that at non-toxic exposure doses,the RAW 264.7 cell line serves as an acute,sensitive and reliable biosensor for the screening of inflammatory constituents within and among discrete OSpW samples.

关键词： OSpW Oil sands Tailings ponds Remediation Macrophages Bioactivity Bioindicator Immunoecotoxicology

Automated software testing : :introduction, management, and performance /

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丛书名：软件工程实践丛书

2003年

作者： dustin Elfriede

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最佳乳糖水平获得最佳收益

饲料研究 2011年第5期34卷 74-75页

作者： dustin Dean 程宗佳(摘译) 美国大豆协会国际项目北京办事处 100004 不详

给断奶仔猪提供乳糖是为了提高仔猪断奶期采食量和潜在的生长性能。乳糖的促生长作用是由于改善了饲料适口性并与饲料中的糖类相匹配,开发了仔猪断奶后的酶系统,但是研究者也建议可以采用其他复杂的机制,如：菌群的改变和对获得健康的... 详细信息

给断奶仔猪提供乳糖是为了提高仔猪断奶期采食量和潜在的生长性能。乳糖的促生长作用是由于改善了饲料适口性并与饲料中的糖类相匹配,开发了仔猪断奶后的酶系统,但是研究者也建议可以采用其他复杂的机制,如：菌群的改变和对获得健康的影响。许多因素影响仔猪饲料中乳糖的水平。

关键词：乳糖糖水饲料适口性断奶仔猪促生长作用多因素影响生长性能仔猪饲料

Social media growth of orthopaedic surgery residency programs in response to the COVID-19 pandemic

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World Journal of Orthopedics 2022年第8期13卷 693-702页

作者： Joseph S Geller dustin H Massel Michael G Rizzo Ean Schwartz Jacob Eric Milner Chester J Donnally III Department of Orthopaedic Surgery University of Miami Miller School of MedicineMiamiFL 33136United States Department of Orthopedics University of Miami Miller School of MedicineMiamiFL 33136United States University of Miami Leonard M.Miller School of Medicine University of Miami Miller School of MedicineMiamiFL 33136United States Miller School of Medicine University of MiamiMiamiFL 33136United States Texas Spine Consultants Texas Spine ConsultantsAddisonTX 75001United States

BACKGROUND In the Spring of 2020,residency programs across the country experienced rapid and drastic changes to their application process as a result of the coronavirus disease 2019(COVID-19)*** response,residency programs shifted to virtual events and began harnessing social media to communicate with *** To analyze the changes in social media usage by orthopaedic surgery programs in response to the COVID-19 *** Based on the 2019 residency and fellowship electronic database,accredited US orthopaedic surgery programs were reviewed for social media presence on Instagram and *** 47000 tweets from 2011-2021 were extracted through the Twitter application programming *** extracted:Total number of followers,accounts following,tweets,likes,date of account creation,hashtags,and *** language processing was utilized for tweet sentiment analysis and classified as positive,neutral,or *** data was collected and deemed current as of August 11,*** account foundation date analysis was based on the date recognized as the start of the COVID-19 outbreak in the United States,before or after March 1,*** A total of 85(42.3%)orthopaedic surgery residency program Twitter handles were ***-five(41.2%)programs joined Twitter in the nine months after the 2020 covid *** 2020,there was a 126.6%increase in volume of tweets by orthopaedic surgery residency accounts as compared to *** median number of followers was 474.5(interquartile range 205.0-796.5).The account with the highest number of tweets was Hospital for Special Surgery(@HSpecialSurgery)with 13776 tweets followed by University of Virginia(@UVA_Ortho)with 5063 and Yale(@OrthoAtYale)with *** analysis before 2020 revealed 30.4%positive,60.8%neutral,and 8.8%negative sentiments across ***,the positive sentiment percentage increased in 2020 from 30.4%to 34.5%.Of the 201 ACGME-accredited ortho

关键词： Social media COVID-19 Orthopaedic surgery Residency

The 5 Hallmarks of Biomaterials Success: An Emphasis on Orthopaedics

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Advances in Bioscience and Biotechnology 2014年第4期5卷 283-293页

作者： dustin L. Williams Brad M. Isaacson Bone & Joint Research Laboratory Department of Veterans Affairs Salt Lake City USA Department of Orthopaedics University of Utah Salt Lake City USA The Henry M. Jackson Foundation for the Advancement of Military Medicine Bethesda USA The Center for Rehabilitation Sciences Research De-partment of Physical Medicine and Rehabilitation Uniformed Services University of Health Sciences Be-thesda USA

Over the past 200 years, there has been significant advancements in the fields of bioengineering and orthopaedics. Investigators, clinicians and manufactures are learning that the success of implant systems is not limited to a single factor, but a combination of variables that must work in unison to provide stability and high survivorship. Innovations continue to advance these fields and include: biomimetic alterations, three-dimensional, patient-specific reconstructions and novel coatings to mitigate aseptic loosening or other pathologies. However, implant systems continue to fail in clinical practice since they do not adhere to key fundamental principles. Therefore, this article is intended to highlight 5 hallmarks of biomaterials that should be considered during design, surgery, and post-operative rehabilitation.

关键词： Biomaterials Orthopaedics Implant Bone Biofilm

Nafion含量与阴离子吸附对于铂单原子层核壳结构催化剂制备的影响（英文）

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电化学 2017年第2期23卷 170-179页

作者：杨莉君 dustin Banham Elod Gyenge 叶思宇巴拉德动力系统/9000Glenlyon parkway Burnaby加拿大英属哥伦比亚省V5J5J8 化学与生物工程学院/英属哥伦比亚大学加拿大温哥华英属哥伦比亚省V6T123

本实验利用铜的欠电位沉积技术,在旋转圆盘电极上以碳负载的钯纳米颗粒为核,制备铂单原子层核壳结构催化剂.电化学测试用于表征不同Nafion含量的添加对于核壳结构催化剂制备的影响.实验证明,Nafion的存在会影响铜的欠电位沉积,铂与铜的... 详细信息

本实验利用铜的欠电位沉积技术,在旋转圆盘电极上以碳负载的钯纳米颗粒为核,制备铂单原子层核壳结构催化剂.电化学测试用于表征不同Nafion含量的添加对于核壳结构催化剂制备的影响.实验证明,Nafion的存在会影响铜的欠电位沉积,铂与铜的置换反应,并决定最终制备的核壳结构催化剂的氧还原催化反应的活性.当催化剂薄层中Nafion的含量低于5%的时候,添加Nafion不但可以帮助催化剂附着在旋转圆盘电极表面,而且可以保证制备的催化剂具有较好的氧还原反应催化活性.在H_2SO_4溶液中,钯纳米颗粒的表面存在特殊的阴离子吸/脱附电化学信号峰,这些信号峰可以用来监测Nafion含量对于铂单原子层核壳结构催化剂制备的影响.

关键词：核壳结构催化剂氧气还原反应铜欠电位沉积 Nafion含量阴离子吸附

菲律宾马尼拉地区小微企业的社交媒体数字化应用

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菲律宾马尼拉地区小微企业的社交媒体数字化应用

作者： Aaron dustin Chua（蔡明锦）福建师范大学

学位级别：硕士

过去几年中,互联网经济呈指数级速度增长。消费者行为模式也发生根本转变,即趋向数字化,而消费者行为的这一转变将引起企业整体战略的调整。本文主要探讨在当下互联网经济发展这一背景下的社交媒体以及菲律宾马尼拉小微企业对其应用。... 详细信息

过去几年中,互联网经济呈指数级速度增长。消费者行为模式也发生根本转变,即趋向数字化,而消费者行为的这一转变将引起企业整体战略的调整。本文主要探讨在当下互联网经济发展这一背景下的社交媒体以及菲律宾马尼拉小微企业对其应用。如何应用社交媒体将因不同的企业类型(如微型、小型、中型)或不同的国家性质(如发达国家或者发展中国家)而有所不同。推动互联网经济增长的因素包含多种技术,本文将就其中一种——社交媒体平台及其如何被不同类型企业应用进行探讨。采用社交媒体是一个相对较新的企业策略,尚未得到深入探讨,因此本文希望收集社交媒体被企业应用的数据统计。只有当中小企业应用社交媒体时,这一数据才有可能被收集。因此,这就要求首先要了解影响中小微企业做出应用社交媒体决定的因素。当下,关于应用社交媒体的影响因素的研究很少,尤其是因为这些技术相对较新,比如相关影响是否应用社交媒体的因素的有关数据,以及一些企业不应用社交媒体的原因,这些研究在网上都较少出现。本文将采用演绎研究法,将定性法与定量法相结合,以达到研究目的。在菲律宾首都马尼拉,对100家中小企业进行调查,调查受访者的人口统计信息、企业信息,以及应用社交媒体与否的原因。本文采用TOE(技术、组织、环境)模型,让受访者通过自身判断,对每一组因素的重要程度进行排序。调查数据通过调查收集的数据交叉列表进行分析。根据描述性分析,马尼拉三分之二的中小微企业每一家都至少采用了一个社交媒体平台,其主要原因是为了广告和促销,这与TOE模型的结果一致,该模型表明,在技术背景下,变量:“影响范围”是采用社交媒体的最重要原因。本文所提出的研究模型可以帮助企业利益相关者更好地理解为什么一些中小企业选择使用社交媒体技术,而其他面临类似市场条件的中小企业却没有。

关键词：菲律宾马尼拉社交媒体互联网经济应用 TOE模型

精通Servlets Java平台的服务器端编程第2版第二版 4

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Comparison of 2-Acetyl-1-pyrroline (2Ap) in Rice Leaf at Different Growth Stages Using Gas Chromatography

2002年

作者： dustin R.Callaway 战晓苏译

本书主要对Web服务器端的开发组件servlet进行了详细介绍，内容包括：Web开发介绍、servlet介绍、高级servlet概念、servlet示例、Servlet ApI快速查阅参考、附录。

ISBN: (纸本)7900641408

关键词： JAVA语言程序设计

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Agricultural Sciences 2022年第2期13卷 165-176页

作者： Manoch Kongchum dustin L. Harrell Steve D. Linscombe H. Rouse Caffey Rice Research Station Louisiana State University Agricultural Center Rayne LA USA The Rice Foundation Arlington VA USA

Aromatic rice lines were examined for 2-Acetyl-1-pyrroline (2Ap) content in leaf tissue at five different growth stages (tillering, panicle initiation, 50% heading, booting, and maturity). A small plot trial with plot size of 1.42 m × 4.88 m (7 row-plots) was arranged in completely randomize design with three replications. Dry-seeded, delayed flood cultural practice was used in this study. The experiment was conducted at three locations. The average 2Ap concentrations in leaf tissue at tillering stages were higher than the other four growth stages. 2Ap levels were declined when rice plant reached booting. Ap levels decreased slightly at heading stage and decreased significantly at maturity. There was no significant different between 2Ap in leaf at 50% heading from three locations as well as the 2Ap content in rice grain. Correlations between 2Ap in leaf and 2Ap in grain were significantly in all five growth stages. The highest correlation coefficient was found between 2Ap in leaf at booting and grain (r = 0.811**) and lowest was in the leaf at harvest (r = 0.564**). Results indicated that 2Ap could be determined in leaf tissue at early growth stage.

关键词： 2-Acetyl-1-pyrroline (2Ap) Aromatic Rice Leaf Tissue Gas Chromatography

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牛奶成分中的功能性物质及其生物学活性

中国畜牧杂志 2009年第20期45卷 65-66,68页

作者： dustin Dean Kevin Halpin 刘庆平美国国际原料公司美国密苏里63026

越来越多的研究表明,牛奶中很多天然成分具有生物学活性,比如含有多种抗毒素、抗细菌和抗病毒以及刺激免疫系统的成分。这些成分包括免疫球蛋白、乳白蛋白、乳球蛋白、酪蛋白糖巨肽、乳铁蛋白及其肽产物、乳铁蛋白肽、乳过氧化物酶、溶... 详细信息

越来越多的研究表明,牛奶中很多天然成分具有生物学活性,比如含有多种抗毒素、抗细菌和抗病毒以及刺激免疫系统的成分。这些成分包括免疫球蛋白、乳白蛋白、乳球蛋白、酪蛋白糖巨肽、乳铁蛋白及其肽产物、乳铁蛋白肽、乳过氧化物酶、溶菌酶、鞘脂类、寡糖和其它物质。

关键词：生物学活性功能性物质牛奶成分乳铁蛋白肽酪蛋白糖巨肽免疫球蛋白乳过氧化物酶天然成分