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Effects of vitamin E on stroke: a systematic review with meta- analysis and trial sequential analysis

Stroke & Vascular Neurology 2021年第1期6卷 109-120页

作者： Hong chuan Loh Renly Lim Kai Wei Lee Chin Yik Ooi deik roy chuan Irene Looi Yuen Kah Hay Nurzalina Abdul Karim Khan Clinical Research Center Hospital Seberang JayaMinistry of Health MalaysiaSeberang JayaMalaysia Clinical and Health Sciences University of South AustraliaAdelaideSouth AustraliaAustralia Department of Pre-Clinical Sciences Faculty of Medicine and Health SciencesUniversiti Tunku Abdul Rahman-Kampus Bandar Sungai LongKajangMalaysia Medical Department Hospital Seberang JayaMinistry of Health MalaysiaSeberang JayaMalaysia School of Pharmaceutical Sciences Universiti Sains MalaysiaMindenMalaysia

There are several previous studies on the association of vitamin E with prevention of stroke but the findings remain *** have conducted a systematic review,meta-analysis together with trial sequential analysis of randomised controlled trials to evaluate the effect of vitamin E supplementation versus placebo/no vitamin E on the risk reduction of total,fatal,non-fatal,haemorrhagic and ischaemic *** studies were identified by searching online databases through Medline,PubMed and Cochrane Central Register of Controlled Trials.A total of 18 studies with 148016 participants were included in the *** was no significant difference in the prevention of total stroke(RR(relative risk)=0.98,95% CI 0.92-1.04,p=0.57),fatal stroke(RR=0.96,95% CI 0.77-1.20,p=0.73)and non-fatal stroke(RR=0.96,95% CI 0.88-1.05,p=0.35).Subgroup analyses were performed under each category(total stroke,fatal stroke and non-fatal stroke)and included the following subgroups(types of prevention,source and dosage of vitamin E and vitamin E alone vs control).The findings in all subgroup analyses were statistically *** stroke subtypes analysis,vitamin E showed significant risk reduction in ischaemic stroke(RR=0.92,95% CI 0.85-0.99,p=0.04)but not in haemorrhagic stroke(RR=1.17,95%CI 0.98-1.39,p=0.08).However,the trial sequential analysis demonstrated that more studies were needed to control random *** of this study include the following:trials design may not have provided sufficient power to detect a change in stroke outcomes,participants may have had different lifestyles or health issues,there were a limited number of studies available for subgroup analysis,studies were mostly done in developed countries,and the total sample size for all included studies was insufficient to obtain a meaningful result from *** conclusion,there is still a lack of statistically significant evidence of the effects of vitamin E on the risk reduction of str

关键词： vitamin prevention dosage

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Early Tumor Diagnosis in Brain MR Images via Deep Convolutional Neural Network Model

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Computers, Materials & Continua 2021年第8期68卷 2413-2429页

作者： Tapan Kumar Das Pradeep Kumar roy Mohy Uddin Kathiravan Srinivasan chuan-Yu Chang Shabbir Syed-Abdul School of Information Technology and Engineering Vellore Institute of TechnologyVellore632014India Department of Computer Science and Engineering Indian Institute of Information TechnologySurat395007India Research Quality Management Section King Abdullah International Medical Research CenterKing Saud bin Abdulaziz University for Health SciencesMinistry of National Guard-Health AffairsRiyadh11426Kingdom of Saudi Arabia Department of Computer Science and Information Engineering National Yunlin University of Science and TechnologyYunlin64002Taiwan Graduate Institute of Biomedical Informatics Taipei Medical UniversityTaipeiTaiwan

Machine learning based image analysis for predicting and diagnosing certain diseases has been entirely trustworthy and even as efficient as a domain expert’s ***,the style of non-transparency functioning by a trained machine learning system poses a more significant impediment for seamless knowledge trajectory,clinical mapping,and delusion *** this proposed study,a deep learning based framework that employs deep convolution neural network(Deep-CNN),by utilizing both clinical presentations and conventional magnetic resonance imaging(MRI)investigations,for diagnosing tumors is *** research aims to develop a model that can be used for abnormality detection over MRI data quite efficiently with high *** research is based on deep learning and Deep-CNN was deployed to examine the MR brain image for tracing the *** system runs on Tensor flow and uses a feature extraction module in DeepCNN to elicit the factors of that part of the image from where underlying issues are identified and subsequently succeeded in prediction of the disease in the MR *** results of this study showed that our model did not have any adverse effect on classification,achieved higher accuracy than the peers in recent years,and attained good detection outcomes including case of *** the future work,further improvement can be made by designing models that can drastically reduce the parameter space without affecting classification accuracy.

关键词： Deep learning convolutional neural network brain tumor magnetic resonance imaging

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Freestanding carbon fiber-confined yolk-shelled silicon-based anode for promoted lithium storage applications

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Rare Metals 2023年第11期42卷 3718-3728页

作者： Dong-Chen Jia Yuan-Yong Feng chuan-Long Zhang Jian-Jiang Li Bin-Wei Zhang Yu-Hai Dou Jagadish Chandra roy Xiao-Yi Zhu Lei Zhang School of Environmental Science and Engineering Qingdao UniversityQingdao266071China Department of Oral and Maxillofacial Surgery The Affiliated Hospital of Qingdao UniversityQingdao266071China Centre for Catalysis and Clean Energy Gold Coast CampusGriffith UniversitySouthportQLD4222Australia Center of Advanced Energy Technology and Electrochemistry Institute of Advanced Interdisciplinary StudiesSchool of Chemistry and Chemical EngineeringChongqing UniversityChongqing400044China Institute of Energy Materials Science University of Shanghai for Science and TechnologyShanghai200093China

A flexible carbon fiber-confined yolk-shelled silicon-based composite is reported as an anode material for lithium storage *** nanoparticles(Si NPs)are confined by the N-doped hollow carbon cages(SiNHC)and these uniform dispersed yolk-shell-structured Si-NHC units were encapsulated by the carbon fibers within an interconnected three-dimensional(3D)framework(Si-NHC@CNFs).For the encapsulated yolkshelled Si-NHC,the void space between the inner Si NPs and outer NHC can accommodate the structural changes of Si NPs during charging/discharging processes,leading to effectively improved structural stability and cycling *** importantly,all the Si-NHC units were bridged together through a conductive CNFs"highway"to enhance the overall conductivity and tap density *** observed,Si-NHC@CNFs exhibited an initial discharge capacity of 1364.1 mAh·g^(-1)at 1000 mA·g^(-1)and678.9 mAh·g^(-1)at 2000 mA·g^(-1).Furthermore,the reversible capacity was well maintained at 752.2 mAh·g^(-1)at500 mA·g^(-1)after 6000 ultra-long cycles.

关键词： Silicon ZIF-8 Carbon fibers Anode Lithium-ion battery(LIB)

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Leakage pressures for gasketless superhydrophobic fluid interconnects for modular lab-on-a-chip systems

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Microsystems & Nanoengineering 2021年第5期7卷 213-226页

作者： Christopher R.Brown Xiaoxiao Zhao Taehyun Park Pin-chuan Chen Byoung Hee You Daniel S.Park Steven A.Soper Alison Baird Michael C.Murphy Center for Bio-Modular Multi-Scale Systems Louisiana State UniversityBaton RougeLA 70803USA Department of Mechanical&Industrial Engineering Louisiana State UniversityBaton RougeLA 70803USA Department of Mechanical and Industrial Engineering University of TorontoTorontoON M5S 3GBCanada School of Mechanical Engineering Kyungnam UniversityChangwonSouth Korea Department of Engineering Technology Texas State UniversitySan MarcosTX 78666USA Department of Mechanical Engineering The University of KansasLawrenceKS 66045USA Department of Chemistry The University of KansasLawrenceKS 66045USA SUNY Downstate Stroke Center University Hospital of BrooklynBrooklynNY 11203USA

Chip-to-chip and world-to-chip fluidic interconnections are paramount to enable the passage of liquids between component chips and to/from microfluidic ***,most interconnect designs add additional physical constraints to chips with each additional interconnect leading to over-constrained microfluidic *** competing constraints provided by multiple interconnects induce strain in the chips,creating indeterminate dead volumes and misalignment between chips that comprise the microfluidic system.A novel,gasketless superhydrophobic fluidic interconnect(GSFI)that uses capillary forces to form a liquid bridge suspended between concentric through-holes and acting as a fluid passage was *** GSFI decouples the alignment between component chips from the interconnect function and the attachment of the meniscus of the liquid bridge to the edges of the holes produces negligible dead *** passive seal was created by patterning parallel superhydrophobic surfaces(water contact angle>150°)around concentric microfluidic ports separated by a *** relative position of the two polymer chips was determined by passive kinematic constraints,three spherical ball bearings seated in v-grooves.A leakage pressure model derived from the Young-Laplace equation was used to estimate the leakage pressure at failure for the liquid ***-molded,Cyclic Olefin Copolymer(COC)chip assemblies with assembly gaps from 3 to 240μm were used to experimentally validate the *** maximum leakage pressure measured for the GSFI was 21.4 kPa(3.1 psig),which corresponded to a measured mean assembly gap of 3μm,and decreased to 0.5 kPa(0.073 psig)at a mean assembly gap of 240μ*** effect of radial misalignment on the efficacy of the gasketless seals was tested and no significant effect was *** may be a function of how the liquid bridges are formed during the priming of the chip,but additional research is required to test that hypothesis.

关键词： passive interconnection fluid

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有机硫对维多利亚褐煤液化的催化作用之穆斯堡尔研究

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江苏师范大学学报（自然科学版） 1989年第2期19卷 33-42页

作者： Peter S.Cook Lim Soon chuan 杭桂生 W.roy Jackson Peter J.Cassidy 徐州师范学院物理系

我们以Morwell和Coolungoolun两种维多利亚褐煤进行实验,对铁和锡在煤的液化中的催化作用进行了比较,发现锡对低硫的Morwell煤较为有效,而铁则更适合于高硫的Coolungoolun煤。对液化余渣的穆斯堡尔分析的结果,使我们可以用低硫煤中元素... 详细信息

我们以Morwell和Coolungoolun两种维多利亚褐煤进行实验,对铁和锡在煤的液化中的催化作用进行了比较,发现锡对低硫的Morwell煤较为有效,而铁则更适合于高硫的Coolungoolun煤。对液化余渣的穆斯堡尔分析的结果,使我们可以用低硫煤中元素态锡的形成以及在高硫煤中磁黄铁矿（Fe_(0.92)S）的形成来对观察到的现象作出解释。硫的损耗数据表明,磁黄铁矿的存在使得煤中的硫转化为气相的量增加了。

关键词：煤液化有机硫穆斯堡尔谱

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练习太极拳时心血管呼吸和代谢功能的改变

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中山大学学报(医学科学版) 1987年第3期 22-25页

作者：卓大宏,roy J.Shephard,Michael J.Plyley,Glen M.Davis 中山医科大学加拿大多伦多大学加拿大多伦多大学加拿大多伦多大学

太极拳是中国传统的武术健身运动。近二、三十年来,北美和西方其他国家许多医学界和武术界人士对太极拳的健身作用越来越感兴趣。太极拳被认为是一种柔和的、放松的运动,可作为对慢性病者的一种放松性的康复性体操,同时,也是一种对一般... 详细信息

太极拳是中国传统的武术健身运动。近二、三十年来,北美和西方其他国家许多医学界和武术界人士对太极拳的健身作用越来越感兴趣。太极拳被认为是一种柔和的、放松的运动,可作为对慢性病者的一种放松性的康复性体操,同时,也是一种对一般中老年和青年人的健身运动。

关键词：太极拳运动心率简化太极拳练习

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优秀棒球投手之研究

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湖北体育科技 2018年第9期37卷 796-798,846页

作者：张耀川马瑞华李卫华郑州西亚斯国际学院体育科研创新中心河南郑州450000

棒球是一项战术多元的团体运动项目,比赛着重于攻击及防守。棒球运动专家roy Umstattd认为棒球比赛投手临场表现具有60~80%影响胜负的结果。本文采用文献、访谈等研究方法,并依据相关的训练基础及运动科学理论,配合训练实务以及实际比... 详细信息

棒球是一项战术多元的团体运动项目,比赛着重于攻击及防守。棒球运动专家roy Umstattd认为棒球比赛投手临场表现具有60~80%影响胜负的结果。本文采用文献、访谈等研究方法,并依据相关的训练基础及运动科学理论,配合训练实务以及实际比赛的经验,研究探讨并分析棒球投手所需要的专项技能、身体训练与心理调适等。期能藉由科学的理论及根据运用于实际训练上,进而培训出更多优秀的投手,使投手更具攻击力,掌握比赛的优势创造胜绩。

关键词：专项技能体能训练心理调适

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