World academy of science, engineering and technology最新文献

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Development and Usability Assessment of a Connected Resistance Exercise Band Application for Strength-Monitoring. 用于力量监测的连接阻力运动带应用程序的开发和可用性评估。
World academy of science, engineering and technology Pub Date : 2019-01-01 DOI: 10.5281/zenodo
J A Batsis, G G Boateng, L M Seo, C L Petersen, K L Fortuna, E V Wechsler, R J Peterson, S B Cook, D Pidgeon, R S Dokko, R J Halter, D F Kotz
{"title":"Development and Usability Assessment of a Connected Resistance Exercise Band Application for Strength-Monitoring.","authors":"J A Batsis, G G Boateng, L M Seo, C L Petersen, K L Fortuna, E V Wechsler, R J Peterson, S B Cook, D Pidgeon, R S Dokko, R J Halter, D F Kotz","doi":"10.5281/zenodo","DOIUrl":"10.5281/zenodo","url":null,"abstract":"<p><p>Resistance exercise bands are a core component of any physical activity strengthening program. Strength training can mitigate the development of sarcopenia, the loss of muscle mass or strength and function with aging. Yet, the adherence of such behavioral exercise strategies in a home-based setting are fraught with issues of monitoring and compliance. Our group developed a Bluetooth-enabled resistance exercise band capable of transmitting data to an open-source platform. In this work, we developed an application to capture this information in real-time, and conducted three usability studies in two mixed-aged groups of participants (n=6 each) and a group of older adults with obesity participating in a weight-loss intervention (n=20). The system was favorable, acceptable and provided iterative information that could assist in future deployment on ubiquitous platforms. Our formative work provides the foundation to deliver home-based monitoring interventions in a high-risk, older adult population.</p>","PeriodicalId":90395,"journal":{"name":"World academy of science, engineering and technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6570823/pdf/nihms-1028161.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37334092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
dynr.mi: An R Program for Multiple Imputation in Dynamic Modeling. dynr.mi:用于动态建模中的多重脉冲的R程序。
World academy of science, engineering and technology Pub Date : 2019-01-01 DOI: 10.5281/zenodo.3298841
Yanling Li, Linying Ji, Zita Oravecz, Timothy R Brick, Michael D Hunter, Sy-Miin Chow
{"title":"dynr.mi: An R Program for Multiple Imputation in Dynamic Modeling.","authors":"Yanling Li,&nbsp;Linying Ji,&nbsp;Zita Oravecz,&nbsp;Timothy R Brick,&nbsp;Michael D Hunter,&nbsp;Sy-Miin Chow","doi":"10.5281/zenodo.3298841","DOIUrl":"https://doi.org/10.5281/zenodo.3298841","url":null,"abstract":"<p><p>Assessing several individuals intensively over time yields intensive longitudinal data (ILD). Even though ILD provide rich information, they also bring other data analytic challenges. One of these is the increased occurrence of missingness with increased study length, possibly under non-ignorable missingness scenarios. Multiple imputation (MI) handles missing data by creating several imputed data sets, and pooling the estimation results across imputed data sets to yield final estimates for inferential purposes. In this article, we introduce dynr.mi(), a function in the <i>R</i> package, <i>Dynamic Modeling in R</i> (<i>dynr</i>). The package <i>dynr</i> provides a suite of fast and accessible functions for estimating and visualizing the results from fitting linear and nonlinear dynamic systems models in discrete as well as continuous time. By integrating the estimation functions in <i>dynr</i> and the MI procedures available from the <i>R</i> package, <i>Multivariate Imputation by Chained Equations</i> (<i>MICE</i>), the dynr.mi() routine is designed to handle possibly non-ignorable missingness in the dependent variables and/or covariates in a user-specified dynamic systems model via MI, with convergence diagnostic check. We utilized dynr.mi() to examine, in the context of a vector autoregressive model, the relationships among individuals' ambulatory physiological measures, and self-report affect valence and arousal. The results from MI were compared to those from listwise deletion of entries with missingness in the covariates. When we determined the number of iterations based on the convergence diagnostics available from dynr.mi(), differences in the statistical significance of the covariate parameters were observed between the listwise deletion and MI approaches. These results underscore the importance of considering diagnostic information in the implementation of MI procedures.</p>","PeriodicalId":90395,"journal":{"name":"World academy of science, engineering and technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6702040/pdf/nihms-1040450.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41223243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Development of an Indoor Drone Designed for the Needs of the Creative Industries 为满足创意产业需求而设计的室内无人机的开发
World academy of science, engineering and technology Pub Date : 2018-04-05 DOI: 10.1999/1307-6892/10009012
Virginia Santamarina Campos, María de-Miguel-Molina, Stephan Kröner, Blanca de-Miguel-Molina
{"title":"Development of an Indoor Drone Designed for the Needs of the Creative Industries","authors":"Virginia Santamarina Campos, María de-Miguel-Molina, Stephan Kröner, Blanca de-Miguel-Molina","doi":"10.1999/1307-6892/10009012","DOIUrl":"https://doi.org/10.1999/1307-6892/10009012","url":null,"abstract":"With this contribution, we want to show how the AiRT system could change the future way of working of a part of the creative industry and what new economic opportunities could arise for them. Remotely Piloted Aircraft Systems (RPAS), also more commonly known as drones, are now essential tools used by many different companies for their creative outdoor work. However, using this very flexible applicable tool indoor is almost impossible, since safe navigation cannot be guaranteed by the operator due to the lack of a reliable and affordable indoor positioning system which ensures a stable flight, among other issues. Here we present our first results of a European project, which consists of developing an indoor drone for professional footage especially designed for the creative industries. One of the main achievements of this project is the successful implication of the end-users in the overall design process from the very beginning. To ensure safe flight in confined spaces, our drone incorporates a positioning system based on ultra-wide band technology, an RGB-D (depth) camera for 3D environment reconstruction and the possibility to fully pre-program automatic flights. Since we also want to offer this tool for inexperienced pilots, we have always focused on user-friendly handling of the whole system throughout the entire process. Keywords—Virtual reality, 3D reconstruction, indoor positioning system, UWB, RPAS, aerial film, intelligent navigation, advanced safety measures, creative industries.","PeriodicalId":90395,"journal":{"name":"World academy of science, engineering and technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84213579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Understanding the Notion between Resiliency and Recovery through a Spatial-Temporal Analysis of Section 404 Wetland Alteration Permits before and after Hurricane Ike. 通过对“艾克”飓风前后404湿地改造许可的时空分析,理解弹性和恢复之间的概念。
Md Y Reja, Samuel D Brody, Wesley E Highfield, Galen D Newman
{"title":"Understanding the Notion between Resiliency and Recovery through a Spatial-Temporal Analysis of Section 404 Wetland Alteration Permits before and after Hurricane Ike.","authors":"Md Y Reja,&nbsp;Samuel D Brody,&nbsp;Wesley E Highfield,&nbsp;Galen D Newman","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Historically, wetlands in the United States have been lost due to agriculture, anthropogenic activities, and rapid urbanization along the coast. Such losses of wetlands have resulted in high flooding risk for coastal communities over the period of time. In addition, alteration of wetlands via the Section 404 Clean Water Act permits can increase the flooding risk to future hurricane events, as the cumulative impact of this program is poorly understood and under-accounted. Further, recovery after hurricane events is acting as an encouragement for new development and reconstruction activities by converting wetlands under the wetland alteration permitting program. This study investigates the degree to which hurricane recovery activities in coastal communities are undermining the ability of these places to absorb the impacts of future storm events. Specifically, this work explores how and to what extent wetlands are being affected by the federal permitting program post-Hurricane Ike in 2008. Wetland alteration patterns are examined across three counties (Harris, Galveston, and Chambers County) along the Texas Gulf Coast over a 10-year time period, from 2004-2013 (five years before and after Hurricane Ike) by conducting descriptive spatial analyses. Results indicate that after Hurricane Ike, the number of permits substantially increased in Harris and Chambers County. The vast majority of individual and nationwide type permits were issued within the 100-year floodplain, storm surge zones, and areas damaged by Ike flooding, suggesting that recovery after the hurricane is compromising the ecological resiliency on which coastal communities depend. The authors expect that the findings of this study can increase awareness to policy makers and hazard mitigation planners regarding how to manage wetlands during a long-term recovery process to maintain their natural functions for future flood mitigation.</p>","PeriodicalId":90395,"journal":{"name":"World academy of science, engineering and technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6178950/pdf/nihms-989660.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36584414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structuring and Visualizing Healthcare Claims Data Using Systems Architecture Methodology. 使用系统架构方法构建和可视化医疗保健索赔数据。
Inas S Khayal, Weiping Zhou, Jonathan Skinner
{"title":"Structuring and Visualizing Healthcare Claims Data Using Systems Architecture Methodology.","authors":"Inas S Khayal,&nbsp;Weiping Zhou,&nbsp;Jonathan Skinner","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Healthcare delivery systems around the world are in crisis. The need to improve health outcomes while decreasing healthcare costs have led to an imminent call to action to <i>transform the healthcare delivery system.</i> While Bioinformatics and Biomedical Engineering have primarily focused on biological level data and biomedical technology, there is clear evidence of the importance of the delivery of care on patient outcomes. Classic singular decomposition approaches from reductionist science are not capable of explaining complex systems. Approaches and methods from systems science and systems engineering are utilized to structure healthcare delivery system data. Specifically, systems architecture is used to develop a multi-scale and multi-dimensional characterization of the healthcare delivery system, defined here as the Healthcare Delivery System Knowledge Base. This paper is the first to contribute a new method of structuring and visualizing a multi-dimensional and multi-scale healthcare delivery system using systems architecture in order to better understand healthcare delivery.</p>","PeriodicalId":90395,"journal":{"name":"World academy of science, engineering and technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6549687/pdf/nihms-1027194.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37038969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Speciation of Iron (III) Oxide Nanoparticles and Other Paramagnetic Intermediates during High-Temperature Oxidative Pyrolysis of 1-Methylnaphthalene. 1-甲基萘高温氧化热解过程中氧化铁纳米颗粒及其他顺磁中间体的形态研究
Michael P Herring, Lavrent Khachatryan, Barry Dellinger
{"title":"Speciation of Iron (III) Oxide Nanoparticles and Other Paramagnetic Intermediates during High-Temperature Oxidative Pyrolysis of 1-Methylnaphthalene.","authors":"Michael P Herring,&nbsp;Lavrent Khachatryan,&nbsp;Barry Dellinger","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Low Temperature Matrix Isolation - Electron Paramagnetic Resonance (LTMI-EPR) Spectroscopy was utilized to identify the species of iron oxide nanoparticles generated during the oxidative pyrolysis of 1-methylnaphthalene (1-MN). The otherwise gas-phase reactions of 1--MN were impacted by a polypropylenimine tetra-hexacontaamine dendrimer complexed with iron (III) nitrate nonahydrate diluted in air under atmospheric conditions. The EPR fine structure of Fe (III)<sub>2</sub>O<sub>3</sub> nanoparticles clusters, characterized by g-factors of 2.00, 2.28, 3.76 and 4.37 were detected on a cold finger maintained at 77 K after accumulation over a multitude of experiments. Additionally, a high valence Fe (IV) paramagnetic intermediate and superoxide anion-radicals, O<sub>2</sub><sup>•-</sup> adsorbed on nanoparticle surfaces in the form of Fe (IV) --- O<sub>2</sub><sup>•-</sup> were detected from the quenching area of Zone 1 in the gas-phase.</p>","PeriodicalId":90395,"journal":{"name":"World academy of science, engineering and technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4581597/pdf/nihms723136.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34109240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bioinformatics and Molecular Biological Characterization of a Hypothetical Protein SAV1226 as a Potential Drug Target for Methicillin/Vancomycin-Staphylococcus aureus Infections. 假设蛋白SAV1226作为甲氧西林/万古霉素-金黄色葡萄球菌感染的潜在药物靶点的生物信息学和分子生物学特性
Nichole Haag, Kimberly Velk, Tyler McCune, Chun Wu
{"title":"Bioinformatics and Molecular Biological Characterization of a Hypothetical Protein SAV1226 as a Potential Drug Target for Methicillin/Vancomycin-<i>Staphylococcus aureus</i> Infections.","authors":"Nichole Haag,&nbsp;Kimberly Velk,&nbsp;Tyler McCune,&nbsp;Chun Wu","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Methicillin/multiple-resistant <i>Staphylococcus aureus</i> (MRSA) are infectious bacteria that are resistant to common antibiotics. A previous <i>in silico</i> study in our group has identified a hypothetical protein SAV1226 as one of the potential drug targets. In this study, we reported the bioinformatics characterization, as well as cloning, expression, purification and kinetic assays of hypothetical protein SAV1226 from methicillin/vancomycin-resistant <i>Staphylococcus aureus</i> Mu50 strain. MALDI-TOF/MS analysis revealed a low degree of structural similarity with known proteins. Kinetic assays demonstrated that hypothetical protein SAV1226 is neither a domain of an ATP dependent dihydroxyacetone kinase nor of a phosphotransferase system (PTS) dihydroxyacetone kinase, suggesting that the function of hypothetical protein SAV1226 might be misannotated on public databases such as UniProt and InterProScan 5.</p>","PeriodicalId":90395,"journal":{"name":"World academy of science, engineering and technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4572700/pdf/nihms708250.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34088290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Forecasting for Financial Stock Returns Using a Quantile Function Model 用分位数函数模型预测金融股收益
World academy of science, engineering and technology Pub Date : 2015-01-01 DOI: 10.5281/ZENODO.1109383
C. Yuzhi
{"title":"Forecasting for Financial Stock Returns Using a Quantile Function Model","authors":"C. Yuzhi","doi":"10.5281/ZENODO.1109383","DOIUrl":"https://doi.org/10.5281/ZENODO.1109383","url":null,"abstract":"In this talk, we introduce a newly developed quantile function model that can be used for estimating conditional distributions of financial returns and for obtaining multi-step ahead out-of-sample predictive distributions of financial returns. Since we forecast the whole conditional distributions, any predictive quantity of interest about the future financial returns can be obtained simply as a by-product of the method. We also show an application of the model to the daily closing prices of Dow Jones Industrial Average (DJIA) series over the period from 2 January 2004 8 October 2010. We obtained the predictive distributions up to 15 days ahead for the DJIA returns, which were further compared with the actually observed returns and those predicted from an AR-GARCH model. The results show that the new model can capture the main features of financial returns and provide a better fitted model together with improved mean forecasts compared with conventional methods. We hope this talk will help audience to see that this new model has the potential to be very useful in practice. Keywords—DJIA, Financial returns, predictive distribution, quantile function model.","PeriodicalId":90395,"journal":{"name":"World academy of science, engineering and technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89801843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advances on LuGre friction model LuGre摩擦模型研究进展
World academy of science, engineering and technology Pub Date : 2013-09-01 DOI: 10.5281/ZENODO.1088126
Mohammad Fuad, F. Ikhouane
{"title":"Advances on LuGre friction model","authors":"Mohammad Fuad, F. Ikhouane","doi":"10.5281/ZENODO.1088126","DOIUrl":"https://doi.org/10.5281/ZENODO.1088126","url":null,"abstract":"LuGre friction model is an ordinary differential equation that is widely used in describing the friction phenomenon for mechanical systems. The importance of this model comes from the fact that it captures most of the friction behavior that has been observed including hysteresis. In this paper, we study some aspects related to the hysteresis behavior induced by the LuGre friction model.","PeriodicalId":90395,"journal":{"name":"World academy of science, engineering and technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74554151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Knowledge, Perceptions and Acceptability to Strengthening Adolescents' Sexual and Reproductive Health Education amongst Secondary Schools in Gulu District. 加强鼓卢区中学青少年性健康和生殖健康教育的知识、观念和可接受性。
Lule Herman, E Ovuga, M Mshilla, S Ojara, G Kimbugwe, A P Adrawa, N Mahuro
{"title":"Knowledge, Perceptions and Acceptability to Strengthening Adolescents' Sexual and Reproductive Health Education amongst Secondary Schools in Gulu District.","authors":"Lule Herman,&nbsp;E Ovuga,&nbsp;M Mshilla,&nbsp;S Ojara,&nbsp;G Kimbugwe,&nbsp;A P Adrawa,&nbsp;N Mahuro","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Adolescents in Northern Uganda are at risk of teenage pregnancies, unsafe abortions and sexually transmitted infections (STIs). There is silence on sex both at home and school. This cross sectional descriptive analytical study interviews a random sample of 827 students and 13 teachers on knowledge, perception and acceptability to a comprehensive adolescent sexual and reproductive health education in \"O\" and \"A\" level secondary schools in Gulu District. Quantitative data was analysed using SPSS 16.0. Directed content analysis of themes of transcribed qualitative data was conducted manually for common codes, sub-categories and categories. Of the 827 students; 54.3% (449) reported being in a sexual relationship especially those aged 15-17 years. Majority 96.1% (807) supported the teaching of a comprehensive ASRHE, citing no negative impact 71.5% (601). Majority 81.6% (686) agreed that such education could help prevention of STIs, abortions and teenage pregnancies, and that it should be taught by health workers 69.0% (580). Majority 76.6% (203) reported that ASRHE was not currently being taught in their schools. Students had low knowledge levels and misconceptions about ASRHE. ASRHE was highly acceptable though not being emphasized; its success in school settings requires multidisciplinary culturally sensitive approaches amongst which health workers should be frontiers.</p>","PeriodicalId":90395,"journal":{"name":"World academy of science, engineering and technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3991165/pdf/nihms564996.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32275589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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