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Effects of resistance training on cardiovascular health in non-obese active adolescents

World Journal of Clinical Pediatrics 2016年第3期5卷 293-300页

作者： Clare Chung-Wah Yu Alison Mary McManus Hung-Kwan So ping Chook Chun-Ting Au Albert Martin Li Jack Tat-Chi Kam Raymond Chi-Hung So Christopher Wai-Kei lam Iris Hiu-Shuen Chan Rita Yn-Tz Sung Department of Health and Physical Education the Education University of Hong Kong Institute of Human Performance the University of Hong Kong Centre for Heart Lung and Vascular HealthSchool of Health and Exercise SciencesUniversity of British Columbia Department of Paediatrics the Chinese University of Hong Kong Hong Kong Sports Institute Faculty of Health Sciences and University Hospital Macao University of Science and Technology Department of Chemical Pathology Prince of Wales Hospitalthe Chinese University of Hong Kong

AIM:To determine the benefits of a 10-wk resistance training programme on cardiovascular health in nonobese and active ***:This is a pragmatic randomised controlled *** study was carried out in a Hong Kong Government secondary ***-eight lean and active boys and girls were randomised to either the resistance training group or the control *** in the resistance training group received in-school 10-wk supervised resistance training twice per week,with each session lasting 70 *** outcome measures taken before and after training included brachial endothelial dependent flow-mediated dilation,body composition,fasting serum lipids,fasting glucose and insulin,high sensitive C-reactive protein,24-h ambulatory blood pressure and aerobic ***:The only training related change was in endothelial dependent flow-mediated dilation which increased from 8.5%to 9.8%.A main effect of time and an interaction(P<0.005) indicated that this improvement was a result of the 10-wk resistance *** effects for time(P<0.05) in a number of anthropometric,metabolic and vascular variables were noted;however,there were no significant interactions indicating the change was more likely an outcome of normal growth and development as opposed to a training ***:Ten weeks of resistance training in school appears to have some vascular benefit in active,lean children.

关键词： Strength training Children Cardiometabolic risk factors Endothelial function School-based training program High sensitive C-reactive protein 24-h ambulatory blood pressure Aerobic fitness

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基于能量指标的DELTA并联机器人拾放轨迹参数优化及验证

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计算机集成制造系统 2018年第12期24卷 3073-3081页

作者：解则晓李斌任凭中国海洋大学工程学院山东青岛266100

为了减少DELTA机器人高速工作时的能耗,对该机器人拾放轨迹的优化问题进行了研究。基于lamé,Clothoid,分段多项式解决Adept Cycle轨迹的直角过渡问题,实现对轨迹的三维形状规划;基于Bang-bang,7次多项式与6次多项式解决轨迹插补点位置... 详细信息

为了减少DELTA机器人高速工作时的能耗,对该机器人拾放轨迹的优化问题进行了研究。基于lamé,Clothoid,分段多项式解决Adept Cycle轨迹的直角过渡问题,实现对轨迹的三维形状规划;基于Bang-bang,7次多项式与6次多项式解决轨迹插补点位置、速度、加速度的设计,实现对轨迹的一维位移与速度的规划。仿真通过DELTA机器人的运动学与动力学模型,求解映射到驱动关节上的速度与力矩分量,并参考电机输入电能与机器人机械能耗两种能耗指标对9种轨迹进行几何参数优化。在计算能耗的过程中考虑电机再生能量的问题,对现有的能耗计算方式进行了改进。在已搭载DELTA的平台上进行测试,验证仿真结果,找出具有最低能耗的轨迹。经过比较发现9种轨迹中,Bang-bang运动规律的分段多项式曲线为最优轨迹,且具有空间与时间可重复性。

关键词： DELTA并联机器人拾放轨迹能耗指标轨迹参数优化

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Special prognostic phenomenon for patients with mid-range ejection fraction heart failure:a systematic review and meta-analysis

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Chinese Medical Journal 2020年第4期133卷 452-461页

作者： Pan Guo Jian-Feng Dai Chao Feng Shu-Tao Chen Jin-ping Feng Department of Cardiology Tianjin Chest HospitalTianjin 300222China Graduate School of Medicine Tianjin Medical UniversityTianjin 300070China

Background:Clinical features and outcomes of heart failure(HF)with mid-range ejection fraction(HFmrEF)remain ***,we systematically reviewed literatures of clinical research to assess and analyze characteristics and prognosis of patients with ***:PubMed,Embase,and Web of Science were searched for cohort studies up to April 23,*** features and multivariate adjusted hazard ratios(HRs)of endpoints of short-term all-cause mortality(SAM),long-term all-cause mortality(lam),long-term cardiovascular death(LCD)and long-term HF rehospitalization(LHR)among patients with HFmrEF and HF with preserved ejection fraction(HFpEF),HF with reduced ejection fraction(HFrEF)were well *** primary outcome was ***:Totally 19 studies were included in this study with 164,678 patients *** follow-up time of lam was 3.6±2.5 *** of lam,SAM,LCD,LHR indicated that the risks of patients with HFmrEF were higher than HFpEF patients but lower than HFrEF patients,as for lam,HFmrEF:HFpEF(reference)HR:1.07,95%confidence interval(CI):1.00-1.15(I2=63%,P=0.0005);HFmrEF:HFrEF(reference)HR:0.80,95%CI:0.73-0.88(I2=70%,Plam(30.94%),SAM(2.73%),LCD(17.45%),LHR(26.36%)compared with the other two ***:This systematic review and meta-analysis compared features and prognosis between patients with HFmrEF and HFpEF,HFrEF by *** appeared a special"separation phenomenon"showing rates of endpoints were inconsistent with their hazards in patients with HFmrEF compared with HFpEF patients.

关键词： Heart failure Ejection fraction Mid-range Prognosis Meta-analysis

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Umbilical Cord Blood Mononuclear Cell Treatment for Neonatal Rats with Hypoxic Ischemia

Umbilical Cord Blood Mononuclear Cell Treatment for Neonatal...

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第十六届中国医师协会神经外科医师年会

作者： Hao LYU Dong Ming SUN Chi ping NG Wendy S CHENG Jun Fan CHEN Yu Zhong HE Sin Yu lam Zhi Yuan ZHENG Guo Dong HUANG Chi Chiu WANG Wise Young Wai Sang POON Division of Neurosurgery Department of SurgeryFaculty of MedicineThe Chinese University of Hong Kong Department of Neurosurgery Shenzhen Key Laboratory of Neurosurgerythe Shenzhen Second People's HospitalFirst Affiliated Hospital of Shenzhen University W.M.Keck Center for Collaborative Neuroscience RutgersState University of New Jersey Department of Neurosurgery Hainan Hospital of People's Liberation Army General Hospital Department of Obstetrics and Gynecology The Chinese University of Hong Kong

Background:Hypoxic-Ischemic Encephalopathy(HIE) occurs when an infant’s brain has not received adequate oxygen and blood supply,resulting in ischemic and hypoxic ***,supportive care and hypothermia therapy have been the standard treatment for ***,there are still over 20% of treated infants died and 19-30% survived with significant *** animal model was first established by Vannucci et al,involving the ligation of one common carotid artery followed by *** this study,we investigated human umbilical cord blood(HUCB) and its two components mononuclear cell(MNC) and red cell fraction(RCF) in both short and long term study using a modified HIE rat ***:In this modified HIE model,both common carotid arteries were occluded,breathing 8% oxygen in a hypoxic chamber for 60-minute,followed by the release of the common carotid arteries ligature,mimicking reperfusion *** cell therapeutic study,cells were intravenously injected to HIE rat pups,and both behavioral and histological changes were assessed at selected time ***:Statistically significant behavioral improvements were demonstrated on Day 7 and 1 month between saline treated HIE rats and UCB/MNC treated ***,at 3 months,the therapeutic improvements were only showed between saline treated HIE animals and MNC treated HIE *** histological analysis one month after cell injection,the number of functional neurons were statistically increased between saline treated HIE and UCB/MNC/RCF treated HIE *** 3 months,the significant increase in functional neurons was only present in MNC treated HIE ***:We have used a bilateral temporary occlusion of 60 minutes,a moderately brain damaged model,for cell therapeutic *** umbilical cord blood(HUCB) mononuclear cell(MNC) therapy showed benefits in neonatal HIE rats in both short and long term behavioral and histological assessments.

关键词： Hypoxic Ischemic Encephalopathy animal model cell therapeutic

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新型冠状病毒肺炎疫情中一次性使用医用口罩重复使用及消毒方法的可行性探讨

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护理管理杂志 2020年第4期20卷 280-284页

作者：林清黄韵芝孙桂萍香港理工大学护理学院香港中山职业技术学院社会工作教研室中山市528400

经呼吸道飞沫传播可能是新型冠状病毒主要的传播途径,佩戴一次性使用医用口罩能有效减少呼吸道传染病人传人的机会,在一次性使用医用口罩缺乏的情况下是否能重复使用是当前公众关注的问题。文章归纳了国内的口罩种类及重复使用的观点及... 详细信息

经呼吸道飞沫传播可能是新型冠状病毒主要的传播途径,佩戴一次性使用医用口罩能有效减少呼吸道传染病人传人的机会,在一次性使用医用口罩缺乏的情况下是否能重复使用是当前公众关注的问题。文章归纳了国内的口罩种类及重复使用的观点及消毒方法,分析了现有消毒方法,包括紫外线、阳光、高温及化学消毒法可能存在的利弊。在新型冠状病毒肺炎疫情影响下,公众可以根据所处的地区、自身的健康情况,以及家庭中一次性使用医用口罩的存储量等情况综合考虑是否重复利用一次性使用医用口罩。

关键词：新型冠状病毒肺炎一次性使用医用口罩重复使用消毒

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The economic burden of influenza-associated outpatient visits and hospitalizations in China: a retrospective survey

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Infectious Diseases of Poverty 2015年第1期4卷 371-381页

作者： Juan Yang Mark Jit Kathy S.Leung Ya-ming Zheng Lu-zhao Feng Li-ping Wang Eric H.Y.Lau Joseph T.Wu Hong-jie Yu Key Laboratory of Surveillance and Early-warning on Infectious Disease Division of Infectious DiseaseChinese Center for Disease Control and Prevention155 Changbai RoadChangping DistrictBeijing 102206China Modelling and Economics Unit of Public Health in England LondonUK Department of Infectious Disease Epidemiology London School of Hygiene and Tropical MedicineLondonUK WHO Collaborating Centre for Infectious Disease Epidemiology and Control School of Public HealthLi Ka Shing Faculty of MedicineThe University of Hong Kong2/F North WingPatrick Manson Building7 Sassoon RoadPok Fu LamHong Kong Special Administrative RegionChina

Background:The seasonal influenza vaccine coverage rate in China is only 1.9%.There is no information available on the economic burden of influenza-associated outpatient visits and hospitalizations at the national level,even though this kind of information is important for informing national-level immunization policy ***:A retrospective telephone survey was conducted in 2013/14 to estimate the direct and indirect costs of seasonal influenza-associated outpatient visits and hospitalizations from a societal *** participants were laboratory-confirmed cases registered in the National Influenza-like Illness Surveillance Network and Severe Acute Respiratory Infections Sentinel Surveillance Network in China in ***-reported costs from the survey were validated by a review of hospital accounts for a small sample of the ***:The study enrolled 529 outpatients(median age:eight years;interquartile range[IQR]:five to 20 years)and 254 inpatients(median age:four years;IQR:two to seven years).Among the outpatients,22.1%(117/529)had underlying diseases and among the inpatients,52.8%(134/254)had underlying *** average total costs related to influenza-associated outpatient visits and inpatient visits were US$155(standard deviation,SD US$122)and US$1,511(SD US$1,465),*** medical costs accounted for 45 and 69%of the total costs related to influenza-associated outpatient and inpatient visits,*** influenza outpatients,the mean cost per episode in children aged below five years(US$196)was higher than that in other age groups(US$129–153).For influenza inpatients,the mean cost per episode in adults aged over 60 years(US$2,735)was much higher than that in those aged below 60 years(US$1,417–1,621).Patients with underlying medical conditions had higher costs per episode than patients without underlying medical conditions(outpatients:US$186 ***$146;inpatients:US$1,800 ***$1,189).In the baseline ana

关键词： Influenza Cost analysis China

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Co60丙种射线对地里红恙虫的发育及生殖能力之影响的研究

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昆虫学报 1963年第Z1期 578-585页

作者：徐秉锟黎家灿陈心陶中山医学院寄生虫学教研组

射线的处理对昆虫的影响已经引起科学界极大的注意;特别是在一些地区应用这种方法消灭害虫获得十分好的效果之后。本试验的目的不在这一方面,因为恙虫成虫并不进行交配,雄虫产精胞于地上,雌虫通过某种方式得到精子(温廷桓,1958)。我们... 详细信息

射线的处理对昆虫的影响已经引起科学界极大的注意;特别是在一些地区应用这种方法消灭害虫获得十分好的效果之后。本试验的目的不在这一方面,因为恙虫成虫并不进行交配,雄虫产精胞于地上,雌虫通过某种方式得到精子(温廷桓,1958)。我们试图探

关键词：生活史 Co 生殖能力

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数字人文视角下lam资源整合路径研究

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情报科学 2021年第4期39卷 157-164页

作者：贾琼王萍吉林大学管理学院吉林长春130022

【目的/意义】以跨领域协作为特征的数字人文理念,将为lam资源的数据化转变、组织与知识服务带来积极影响,也为lam资源整合提供了新的视角与思路。【方法/过程】基于文献知识图谱,可视化透视了二者在资源、技术与服务层面的契合度,并据... 详细信息

【目的/意义】以跨领域协作为特征的数字人文理念,将为lam资源的数据化转变、组织与知识服务带来积极影响,也为lam资源整合提供了新的视角与思路。【方法/过程】基于文献知识图谱,可视化透视了二者在资源、技术与服务层面的契合度,并据此构建了数字人文视角下lam资源整合的逻辑框架,最后从机构协同合作、数据驱动、技术驱动与需求导向四个层面,总结了数字人文视角下lam资源整合的可行路径。【结果/结论】数字人文与lam资源整合理念存在一定的契合度;数字人文从机构、资源、技术与服务四个层面,丰富lam资源整合的路径。【创新/局限】从理论层面较为完整的阐述了数字人文视角下lam资源整合的逻辑与路径,在实践层面仍存在资源样本选择与验证等局限与拓展空间。

关键词：数字人文 lam资源资源整合机构协同整合路径

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基于lamé曲线的Delta并联机器人拾放操作轨迹的优化与试验验证

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机械工程学报 2015年第1期51卷 52-59页

作者：解则晓商大伟任凭中国海洋大学工程学院青岛266100

提出了高速Delta并联机器人拾放操作轨迹的一种实现及优化的方法。在笛卡儿空间中利用lamé曲线平滑竖直运动与水平运动之间的直角过渡部分,确定运动轨迹形状。用高阶多项式运动特性对一维曲线弧位移进行三维规划,获得运动轨迹插补点的... 详细信息

提出了高速Delta并联机器人拾放操作轨迹的一种实现及优化的方法。在笛卡儿空间中利用lamé曲线平滑竖直运动与水平运动之间的直角过渡部分,确定运动轨迹形状。用高阶多项式运动特性对一维曲线弧位移进行三维规划,获得运动轨迹插补点的位置、速度和加速度信息。通过Delta机器人运动学模型和动力学模型将笛卡儿空间内的轨迹信息映射到机器人关节空间,以关节电动机的近似输出能量函数为目标优化lamé曲线的参数。在试验样机平台上进行测试,测量不同lamé曲线参数的运动轨迹在运动停止后机构残余振动的情况,通过比较验证了参数优化后的轨迹具有良好的实际性能,能够获得满足实践要求的轨迹曲线。

关键词： Delta并联机器人拾放操作轨迹规划 lamé曲线参数优化

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不同温度下的棉铃虫实验种群生命表

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昆虫学报 1978年第4期21卷 385-392页

作者：吴坤君陈玉平李明辉中国科学院动物研究所

组建了棉铃虫在五种恒温条件下的种群生命表。分析结果表明,卵期孵化率在25℃中最高,在35℃中孵化率显著下降。在20°—35℃范围内,幼虫存活率变化不大;在15℃中幼虫死亡率显著增加,低温对幼虫存活的影响主要发生在4—6龄期间。在试验... 详细信息

组建了棉铃虫在五种恒温条件下的种群生命表。分析结果表明,卵期孵化率在25℃中最高,在35℃中孵化率显著下降。在20°—35℃范围内,幼虫存活率变化不大;在15℃中幼虫死亡率显著增加,低温对幼虫存活的影响主要发生在4—6龄期间。在试验的温度范围内,蛹期存活率与温度呈直线相关。世代存活率以30℃中为最高,25℃中次之。在25°—30℃范围内,雌蛾平均产卵量最大,产卵率最高;15℃低温主要影响卵的形成,持续35℃高温主要影响成虫的产卵行为。在五种温度中的世代存活率和雌蛾平均产卵量均呈抛物线趋势。在试验温度范围内的种群增长指数可以用二次抛物线方程表示。计算结果表明,在15.05°—36.08℃范围内,棉铃虫种群世代数量都是上升的趋势,在最适温度下繁殖一代,种群的数量约增加350倍;在15.05℃或36.08℃中,种群世代数量基本保持稳定。

关键词：棉铃虫不同温度棉铃实夜蛾棉花害虫实验种群生命表世代存活率种群数量变动

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