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Evaluation of adenosine triphosphate bioluminescence-based system in rooms occupied by patients with methicillin resistant Staphylococcus

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Infectious Medicine 2022年第3期1卷 217-220页

作者： Anna Montgomery Kimberly Hammer Dubert Guerrero tze shien lo Department of Research San Francisco VA Medical CenterSan FranciscoCAUSA Department of Medicine University of California San FranciscoSan FranciscoCAUSA Department of Medicine University of North Dakota School of Medicine and Health SciencesGrand ForksNDUSA Department of Infection Prevention Fargo VA Healthcare SystemFargoNDUSA Department of Infection Prevention Sanford HealthFargoNDUSA

Background:Adenosine triphosphate(ATP)-based monitoring systems can detect the amount of organic matter that remains on hospital surfaces after *** evaluated an ATP-based monitoring system in assessing con-tamination of high touched objects in rooms occupied by patients on methicillin resistant *** ***:We compared the ATP to standard aerobic cultures as well as to gloved hand culture to predict risk of healthcare-worker hand ***:More than a third of high touch object surfaces were measured unclean with ATP yet only reflects about 5%chance of contaminating healthcare-workers’***:Our study emphasizes the shortcomings of using the ATP system even in pathogen specific environ-ment such as surfaces in methicillin resistant *** rooms.

关键词： Environment Healthcare-associated infections Hand hygiene Infection prevention Infection control MRS

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Evaluating the performance of the Alere PBP2a SA Culture Colony Test with the Vitek 2 Antimicrobial Susceptibility Test Card System as reference standard in coagulase-negative Staphylococcus species

Infectious Medicine

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Infectious Medicine 2024年第3期3卷 69-72页

作者： tze shien lo Michihiko Goto Kimberly D.P.Hammer Fargo VA Health Care System 2101 Elm StreetFargoND 58102USA University of North Dakota School of Medicine&Health Sciences 1919 Elm StreetFargoND 58102USA Iowa City VA Health Care System 601 Highway 6 WestIowa CityIA 52246USA University of Iowa Carver College of Medicine 451 Newton RoadIowa CityIA 52242USA

Background The Alere PBP2a SA Culture Colony Test is an FDA-cleared in vitro immunochromatographic assay for rapid detection of penicillin-binding protein2a(PBP2a)in Staphylococcus *** We investigated the performance of the PBP2a SA Culture Colony Test with 78 coagulase-negative Staphylococcus(CoNS)isolates from different body sites,with the Vitek 2 Antimicrobial Susceptibility Test(AST)as a reference *** The CoNS species were 62 ***;6 ***;3 ***;2 ***;2 ***;and 1 each of ***,***,and *** the 78 CoNS isolates,68 showed concordance in the PBP2a IC assay and Vitek 2 *** was seen for 10 *** isolates,which showed negative in the PBP2a assay,despite oxacillin-resistance detection using the Vitek 2 AST(66.7%sensitivity and 100%specificity).All *** CoNS were identified with 100%concordance using the PBP2a IC assay and Vitek 2 *** We demonstrated that,while the PBP2a IC assay has low sensitivity in determining the susceptibility of *** to oxacillin,it highly accurately predicted the susceptibility of *** CoNS to *** diagnostic accuracy for *** CoNS needs further assessment with more isolates to confirm our findings.

关键词： PBP2a IC assay Staphylococcus epidermidis Non-epidermidis coagulase-negative Staphylococcus

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美国感染控制专业认证体系介绍及对我国的启示

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中华医院管理杂志 2019年第9期35卷 785-788页

作者：同俏静 tze shien lo 浙江大学医学院附属邵逸夫医院医院感染管理科杭州310016 北达科塔大学医学院医学系美国北达科他州法戈市58102

美国感染控制专业认证是对从事感染预防和控制工作的人员提供标准化的一种测量方法,其追求的是一种卓越的职业标准,目的是为了持续提升感染控制专职人员的专业技能,从而确保向患者提供高品质的安全医疗。借鉴美国感染控制专业认证体系,... 详细信息

美国感染控制专业认证是对从事感染预防和控制工作的人员提供标准化的一种测量方法,其追求的是一种卓越的职业标准,目的是为了持续提升感染控制专职人员的专业技能,从而确保向患者提供高品质的安全医疗。借鉴美国感染控制专业认证体系,有助于促进我国感染控制专业认证的发展与成熟。

关键词：感染控制专业认证体系美国启示

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Structure and species composition of tree stands on verges and slopes along a major highway in Hong Kong

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Journal of Forestry Research 2023年第5期34卷 1347-1358页

作者： louis Shing Him Lee Hao Zhang Kathy tze Kwun Ng Shun Cheong lo Alan Siu Lun Yu Faculty of Design and Environment Technological and HigherEducation Institute of Hong KongHong KongPeople’s Republic of China Landscape Division Highways DepartmentHong KongPeople’s Republic of China Greening Landscape and Tree Management SectionDevelopment BureauHong KongPeople’s Republic of China

Arboricultural research focusing on transport land use was lacking in Hong *** highway slopes were registered in the Systematic Identification of Maintenance Responsibility of Slopes in the Territory(SIMAR),abbreviated as SIMAR *** aimed to analyze patterns in the structure and species composition of the tree stock along a highway in Hong Kong and examined how a slope registration system could help explain the characteristics of urban *** 53 slopes and 52 verges along San Tin Highway,Hong Kong were randomly *** trees on each slope and verge were collectively sampled as a tree *** variables,namely tree abundance,species richness,maximum tree height,Shannon-Wiener diversity,Simpson's dominance,and Pielou's evenness were measured for each *** addition,a limited visual tree risk assessment was *** 7,209 trees in 23 species were *** richness was low,ranging from one to eight species per *** and non-SIMAR slopes were *** slopes had significantly higher species richness,diversity,evenness but lower dominance,with mean difference of 1.41 species,0.17,0.17 *** slopes were associated with lower tree risk *** training regression models,boosting as an ensemble method arbitrarily raised the explanatory power and the predictive accuracy of some *** height,length,angle and area could be significant predictors of the biodiversity-related *** research can sample more habitat characteristics related to the structure and species composition of slopes and verges which were important components of urban forestry.

关键词： Highway greenery Roadside tree management Tree risk assessment Monospecific urban forest Slope geophysical environment Urban forests

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平炉炼钢过程中的脱硫和锰硫平衡

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金属学报 1957年第4期 321-333页

作者：邹元爔孟宪智潘鸿芳王伟杰中国科学院冶金陶瓷研究所

在本文中,我们提出了三个考察碱性平炉渣、钢间硫分配平衡的方法:（i）硫分配比（S）/[S]与新碱度,（ii）硫氧比（S）/[S][O]与总酸量Σα=NSiO2+4/3NP2O5+4/3NAl2O3,（iii）硫铁比（S）/[S]（ΣFe）与（%SiO2）+0.5（%P2O5）+0.2（%Al... 详细信息

在本文中,我们提出了三个考察碱性平炉渣、钢间硫分配平衡的方法:（i）硫分配比（S）/[S]与新碱度,（ii）硫氧比（S）/[S][O]与总酸量Σα=NSiO2+4/3NP2O5+4/3NAl2O3,（iii）硫铁比（S）/[S]（ΣFe）与（%SiO2）+0.5（%P2O5）+0.2（%Al2O3）。计算结果颇能符合平衡的要求。锰硫平衡用相似于（ii）的方法来处理,即将(αMnO)（S）/（[Mn][S]）与Σα作图,得出与硫氧比相似的曲线。此外,我们将Chipman等的硫氧比—%SiO2（分子）由线适当延长以包括酸性渣区域,并从离子观点介释碱性区域曲线的形状。

关键词：硫分配比氧比总酸量酸性渣硫平衡静算碱度脱硫化工单元操作

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