Impact of combining data from multiple instruments on performance of patient-based real-time quality control

IntroductionIt is unclear what is the best strategy for applying patient-based real-time quality control (PBRTQC) algorithm in the presence of multiple instruments. This simulation study compared the error detection capability of applying PBRTQC algorithms for instruments individually and in combination using serum sodium as an example.Materials and methodsFour sets of random serum sodium measurements were generated with differing means and standard deviations to represent four simulated instruments. Moving median with winsorization was selected as the PBRTQC algorithm. The PBRTQC parameters (block size and control limits) were optimized and applied to the four simulated laboratory data sets individually and in combination.ResultsWhen the PBRTQC algorithm were individually optimized and applied to the data of the individual simulated instruments, it was able to detect bias several folds faster than when they were combined. Similarly, the individually applied algorithms had perfect error detection rates across different magnitudes of bias, whereas the error detection rates of the algorithm applied on the combined data missed smaller biases. The performance of the individually applied PBRTQC algorithm performed more consistently among the simulated instruments compared to when the data were combined.DiscussionWhile combining data from different instruments can increase the data stream and hence, increase the speed of error detection, it may widen the control limits and compromising the probability of error detection. The presence of multiple instruments in the data stream may dilute the effect of the error when it only affects a selected instrument.     

The influence of water depth on kinematic and spatiotemporal gait parameters during aquatic treadmill walking

The purpose of this study was to investigate kinematic and spatiotemporal variables of aquatic treadmill walking at three different water depths. A total of 15 healthy individuals completed three two-minute walking trials at three different water depths. The aquatic treadmill walking was conducted at waist-depth, chest-depth and neck-depth, while a customised 3-D underwater motion analysis system captured their walking. Each participant’s self-selected walking speed at the waist level was used as a reference speed, which was applied to the remaining two test conditions. A repeated measures ANOVA showed statistically significant differences among the three walking conditions in stride length, cadence, peak hip extension, hip range of motion (ROM), peak ankle plantar flexion and ankle ROM (All p values < 0.05). The participants walked with increased stride length and decreased cadence during neck level as compared to waist and chest level. They also showed increased ankle ROM and decreased hip ROM as the water depth rose from waist and chest to the neck level. However, our study found no significant difference between waist and chest level water in all variables. Hydrodynamics, such as buoyancy and drag force, in response to changes in water depths, can affect gait patterns during aquatic treadmill walking.     

食品工程实验教学中心建设的实践与探索

从食品工程实验教学中心建设的目标和任务出发,探讨了实验教学中心在实验队伍、实验教学体系、实验教学方式、实验教学管理体制和运行机制等建设方面的实践经验。     

应用化学专业基础课程教学团队建设的探索与实践

结合南阳师范学院应用化学专业基础课程教学团队建设的实践经验,从师资队伍建设、课程建设、教学内容和教学方法的改革、科研转化为教学等方面介绍了我校团队的建设情况。     

管理理论中的理念重构

西方传统理性管理理论中过于注重经济利益的经济主义价值理念在现实中受到了愈来愈多的冲击。在充分扬弃传统理性管理理论中的经济主义管理理念的基础上，现代管理理念应树立社会综合价值管理理念。中国的社会综合价值管理理念应以西方传统管理理论中的经济主义价值理念作基础，自觉抵制其消极因素，吸收其合理成分，又要弘扬中华民族传统管理理论中的优良道德传统，重构中国企业管理中的社会综合价值管理理念。     

英国新左派内部的方法论差异——爱德华·汤普森与佩里·安德森理论论争新探

汤普森与安德森分别是第一代与第二代英国新左派的代表人物,他们之间的理论论争是国外马克思主义研究的重要课题之一.汤普森将安德森的方法论指认为经济还原论与历史一元论.安德森则认为,汤普森不能从社会总体把握社会部分,可以归因于经验主义方法论的局限.在第二次理论论争中,汤普森认为,英国第二代新左派以阿尔都塞结构主义为方法论,在研究英国历史中只能得到抽象理论而非历史事实.安德森围绕历史学三个关键问题,对汤普森的批判进行回应,把汤普森所强调的客观经验吸纳为文化霸权方法的一个逻辑环节.第一次论争形成了针锋相对的态势,其原因在于彼时英国乃至欧洲的社会主义运动形势非常有利,为路线差别奠定基础的方法论就成为了根本问题.第二次争论处于1979年以后革命前景并不乐观的历史语境中,为社会主义运动寻求新的方法论,整合新左派内部的理论分歧就成为唯一合理的选择.     

新时代高校辅导员研究的热点主题和未来展望

分析新时代高校辅导员研究的热点主题和未来展望,对我国加强辅导员队伍建设具有重要意义.研究运用CiteSpace可视化软件,对2013年至2020年中文社会科学引文索引来源期刊(CSSCI)收录的500篇以高校辅导员为主题的文献进行分析.研究发现,新时代高校辅导员研究聚焦辅导员队伍建设研究、辅导员专业化研究、大学生思政教育研究和优秀辅导员特征研究.新时代高校辅导员研究热点呈现以下四个方面特征:转向微观层面、强调"以生为本"、注重总结经验和关注自身发展.展望未来,应从三个方面着力:协同研究和研究协同、政策研究和研究政策、实效研究和研究实效.     

关注核心素养的高中生物学一轮复习课——以“激素调节”为例

以血糖调节为主线,利用相关资料作情境,通过分析胰岛素和糖皮质激素对血糖的调节作用及机理,构建激素调节血糖机理的概念模型,帮助学生深入理解反馈调节等重要概念,重点培养学生获取信息的能力,提升归纳与概括等科学思维,形成稳态与平衡的生命观念。     

高职院校Photoshop课程的线上教学实践研究

基于Photoshop课程和高职院校学生的特点分析,采用网络教学资源、屏幕录像软件及QQ群相结合的教学模式开展线上教学,旨在探索适宜学生学习的线上教学模式,增加学生的学习自主性和学习乐趣,实现分层化和个性化教学,并对教学效果进行评价分析,证明其可行性和适用性。     

媒体融合时代国内高校信息检索课教材建设情况调研与分析

通过调研分析媒体融合高速发展的2017—2019年,国内高校信息检索课程教材出版和使用情况,得出结论:信息检索课教材建设必须与时俱进,在持续发展综合性通识类教材的同时,加强专业类教材及配套教辅资料的编写,无缝对接课堂内外;契合课程教学模式更新,建设多层次立体化教材体系;对接读者需求变化,设计精准定位的场景教学内容;建立健全合作机制,联合优势力量编写精品教材。