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微动敏感床垫式睡眠监测系统诊断阻塞性睡眠呼吸暂停及睡眠参数一致性评价

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广东医学 2024年第3期45卷 287-293页

作者：梁锡丽许婷陈莉雅江茵谢晴娥廖生武冯媛南方医科大学第一临床学院广东广州510515 南方医科大学南方医院精神心理科(睡眠医学中心) 广东广州510515 南方医科大学南方医院医疗质量管理科广东广州510515 南方医科大学南方医院健康管理科广东广州510515

目的评价微动敏感床垫式睡眠监测系统(MSMSMS)在阻塞性睡眠呼吸暂停(OSA)诊断及睡眠评估中多参数与多导睡眠监测(PSG)相比的一致性。方法67例拟诊OSA的受试者同步使用PSG及MSMSMS记录多导睡眠参数,比较两者在OSA诊断及分度上的一致性,... 详细信息

目的评价微动敏感床垫式睡眠监测系统(MSMSMS)在阻塞性睡眠呼吸暂停(OSA)诊断及睡眠评估中多参数与多导睡眠监测(PSG)相比的一致性。方法67例拟诊OSA的受试者同步使用PSG及MSMSMS记录多导睡眠参数,比较两者在OSA诊断及分度上的一致性,以及分别在呼吸事件、血氧事件、睡眠基本信息及睡眠结构参数上的一致性。计量资料采取了配对t检验,Bland-Altman分析以及组内相关系数(ICC),等级资料采取了weighted kappa分析。结果MSMSMS与PSG对照,诊断轻度以上、中度以上、重度OSA的曲线下面积分别为1、0.999和0.967(Peighted kappa系数为0.841(95%CI:0.766~0.928,P<0.001)。其中呼吸暂停低通气指数(AHI)、呼吸暂停指数(AI)以及血氧指标组内相关系数分别为0.967(0.943,0.980)、0.937(0.900,0.961)、0.900(0.837,0.939)和0.936(0.891,0.962);两者在除低通气指数(HI)[0.181(-0.032,0.387),P=0.036]外的其他呼吸事件和血氧指标判读上具有很高的一致性(P<0.001);在睡眠结构的判读上,两者在浅睡眠比例和时间、深睡眠时间上具有中等程度的一致性。结论MSMSMS与PSG在OSA诊断和分度中具有高的敏感度和特异度。除了呼吸事件和血氧指标具有较强的一致性外,MSMSMS在评判OSA患者的睡眠结构上也有一定的意义。

关键词：微动敏感床垫式睡眠监测系统多导睡眠监测阻塞性睡眠呼吸暂停诊断试验一致性评价睡眠结构

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The silent spermatozoon： are man-made endocrine disruptors killing male fertility？

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Asian Journal of Andrology 2013年第2期15卷 165-168,I0004页

作者： Bradley d Anawalt department of Medicine University of Washington Seattle WA 98195 USA

In 1992, a danish group led by Skakkebaek , reported in a meta-analysis that global mean sperm counts were fallingandthat testicular cancer, hypospadias and cryptorchidism were increasing. They hypothesized that environmental factors were the cause. Their rectaanalysis was criticized subsequently for many methodological flaws. However, their controversial metamlysls and hypothesis spurred pubfic and scientific interest in the study of male reproductive function and stimulated more rigorous scientific work in the area. Subsequent research has not convincingly supported their hypothesis, However, it is caudal to continue high quality studies of the effects of drugs and manmade pollutants on male eeproductlve function.

关键词： deTeRIORATING SeMeN QUALITY SPeRM COUNTS ReFeReNCe VALUeS INFeRTILe MeN NO eVIdeNCe dANISH MeN HeALTHY PeRIOd deCLINe OBeSITY

Artisanal ceramic factories using wood combustion:A nanoparticles and human health study

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Geoscience Frontiers 2022年第1期13卷 488-497页

作者： Kátia Martinello James C.Hower diana Pinto Carlos e.Schnorr Guilherme L.dotto Marcos Leandro Silva Oliveira Claudete G.Ramos Instituto Inanís Rua Felizardo FurtadoPorto AlegreBrazil department of Civil and environmental Universidad de la CostaCUCCalle 58#55–66BarranquillaAtlánticoColombia University of Kentucky Department of Earth&Environmental SciencesLexingtonKY 40506USA University of Kentucky Center for Applied Energy Research2540 Research Park DriveLexingtonKY 40511USA Centro de estudos em estresse Oxidativo-departamento de Bioquímica-Instituto de Ciências Básicas da Saúde-Universidade Federal do Rio Grande do Sul(UFRGS) Porto AlegreRSBrazil Chemical engineering department Federal University of Santa MariaUFSMRoraima Avenue1000Santa MariaRS97105-900Brazil departamento de Ingeniería Civil y Arquitectura Universidad de LimaAvenida Javier Prado Este 4600–Santiago de Surco 1503Peru

The ceramics industry,resulting from developments of modern compounds,is a segment of great influence in worldwide *** ceramic factories based on wood combustion have significant risks for the creation and discharge of atmosphere nanoparticles(NPs)and ultra-fine particles(UFPs).At present,there is insufficient recognition on the influence of engineered-NPs on the atmosphere and *** improvements are indispensable to diminish contact with *** present study demonstrates the main NPs and UFPS present in an area of intense artisanal wood-combustion ceramic *** matter was sampled for morphological,chemical,and geochemical studies by sophisticated electron microbeam microscopy,X-Ray diffraction,and Raman *** NPs configuration(e identify *** amorphous NPs(>10 nm)were produced around the studied artisanal ceramic *** study presents an indication of the recent information on population and work-related contact to NPs in the artisanal ceramic factories and their influence on health.

关键词： Ceramic manufacturing Nanoparticles Advanced characterization Multiple impacts

THRFuzzy:Tangential holoentropy-enabled rough fuzzy classifier to classification of evolving data streams

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Journal of Central South University 2017年第8期24卷 1789-1800页

作者： Jagannath e.Nalavade T.Senthil Murugan department of CSe Veltech Dr.RR&Dr.SR Technical UniversityChennaiIndia

The rapid developments in the fields of telecommunication, sensor data, financial applications, analyzing of data streams, and so on, increase the rate of data arrival, among which the data mining technique is considered a vital process. The data analysis process consists of different tasks, among which the data stream classification approaches face more challenges than the other commonly used techniques. even though the classification is a continuous process, it requires a design that can adapt the classification model so as to adjust the concept change or the boundary change between the classes. Hence, we design a novel fuzzy classifier known as THRFuzzy to classify new incoming data streams. Rough set theory along with tangential holoentropy function helps in the designing the dynamic classification model. The classification approach uses kernel fuzzy c-means(FCM) clustering for the generation of the rules and tangential holoentropy function to update the membership function. The performance of the proposed THRFuzzy method is verified using three datasets, namely skin segmentation, localization, and breast cancer datasets, and the evaluated metrics, accuracy and time, comparing its performance with HRFuzzy and adaptive k-NN classifiers. The experimental results conclude that THRFuzzy classifier shows better classification results providing a maximum accuracy consuming a minimal time than the existing classifiers.

关键词：模糊分类器数据流分析粗糙集理论数据挖掘技术 fuzzy方法 k-NN分类分类模型模糊C均值

The impact of height-adjustable desks and classroom prompts on classroom sitting time,social,and motivational factors among adolescents

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Journal of Sport and Health Science 2023年第1期12卷 97-105页

作者： Bronwyn Sudholz Ana Marıa Contardo Ayala Anna Timperio david W.dunstan david e.Conroy Gavin Abbott Bernie Holland Lauren Arundell Jo Salmon Pomegranate Community Mental Health St John of God Social OutreachBallaratVIC 3350Australia Institute for Physical Activity and Nutrition(IPAN) School of Exercise and Nutrition SciencesDeakin UniversityGeelongVIC 3128Australia Physical Activity Laboratory Baker Heart and Diabetes InstituteMelbourneVIC 3004Australia Mary MacKillop Institute for Health Research Australian Catholic UniversityMelbourneVIC 3000Australia department of Kinesiology Pennsylvania State UniversityUniversity ParkPA 16802USA department of Preventive Medicine Northwestern UniversityChicagoIL 60611USA The Australian Council for Health and Physical education and Recreation AbbotsfordVIC 3067Australia

Purpose:This quasi-experimental study examined the impact of height-adjustable desks in combination with prompts to break up prolonged sitting time during class time and identified social and motivational factors associated with breaking up sitting time among ***’perceptions of strategies were also ***:Over 17 weeks,1 classroom in a government secondary school in Melbourne,Australia,was equipped with 27 height-adjustable desks and prompts(posters and desk stickers)to break up classroom sitting *** received professional development in the use of the desks and *** group of adolescents(n=55)had 2-5 lessons/week using the height-adjustable desks in an intervention classroom,and a comparison group matched by year level and subject(n=50)was taught in traditional“seated”*** wore an activPAL monitor at baseline(T0),4 weeks(T1),and 17 weeks(T2)and completed a survey at T0 and *** teachers participated in interviews at *** sizes were calculated(d).Results:Linear mixed models found that,compared to the traditional“seated”classrooms,the adolescents in the intervention classroom had significantly lower sitting time(T1:-9.7 min/lesson,d=-0.96;T2:-6.7 min/lesson,d=-0.70)and time spent in sitting bouts>15 min(T2:-11.2 min/lesson,d=-0.62),and had significantly higher standing time(T1:7.3 min/lesson,d=0.84;T2:5.8 min/lesson,d=0.91),number of breaks from sitting(T1:1.3 breaks/lesson,d=0.49;T2:1.8 breaks/lesson,d=0.67),and stepping time(T1:2.5 min/lesson,d=0.66).Intervention classroom adolescents reported greater habit strength(d=0.58),self-efficacy for breaking up sitting time(d=0.75),and indicated that having a teacher/classmate remind them to stand as helpful(d=0.50).Conclusion:This intervention shows promise for targeting sitting behaviors in the classroom and indicates that incorporating social and motivational strategies may further enhance outcomes.

关键词： Adolescent School Sedentary behavior Sitting Standing

Calibrating SeCCM measurements by means of a nanoelectrode *** intrinsic oxygen reduction activity of PtNi catalyst nanoparticles

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Nano Research 2022年第2期15卷 1564-1569页

作者： emmanuel Batsa Tetteh Tobias Loffler Tsvetan Tarnev Thomas Quast Patrick Wilde Harshitha Barike Aiyappa Simon Schumacher Corina Andronescu Richard d.Tilley Xingxing Chen Wolfgang Schuhmann Analytical Chemistry-Center for electrochemical Sciences Faculty of Chemistry and BiochemistryRuhr University BochumUniversitatsstr.150D-44780 BochumGermany Chemical Technology III Faculty of Chemistry and CENIDE-Center for NanointegrationUniversity Duisburg EssenCarl Benz Str.199D-47057 DuisburgGermany School of Chemistry and Australian Centre for NanoMedicine University of New South WalesSydney 2052Australia Research Group of Functional Materials for el

Scanning electrochemical cell microscopy(SeCCM)is increasingly applied to determine the intrinsic catalytic activity of single electrocatalyst *** is especially feasible if the catalyst nanoparticles are large enough that they can be found and counted in post-SeCCM scanning electron microscopy ***,this becomes impossible for very small nanoparticles and hence,a catalytic current measured in one landing zone of the SeCCM droplet cannot be correlated to the exact number of catalyst *** show,that by introducing a ruler method employing a carbon nanoelectrode decorated with a countable number of the same catalyst particles from which the catalytic activity can be determined,the activity determined using SeCCM from many spots can be converted in the intrinsic catalytic activity of a certain number of catalyst nanoparticles.

关键词： intrinsic electrocatalytic activity nanoelectrochemistry scanning electrochemical cell microscopy(SeCCM) PtNi nanoparticles single entity electrochemistry alkaline medium

Terahertz aqueous photonics

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Frontiers of Optoelectronics 2021年第1期14卷 37-63页

作者： Qi JIN Yiwen e Xi-Cheng ZHANG The Institute of Optics University of RochesterRochesterNY 14627USA

developing efficient and robust terahertz(THz)sources is of incessant interest in the THz community for their wide *** successive effort in past decades,numerous groups have achieved THz wave generation from solids,gases,and ***,liquid,especially liquid water has never been demonstrated as a THz *** main reason leading the impediment is that water has strong absorption characteristics in the THz frequency regime.A thin water film under intense laser excitation was introduced as the THz source to mitigate the considerable loss of THz waves from the ***-induced plasma formation associated with a ponderomotive forceinduced dipole model was proposed to explain the generation *** the one-color excitation scheme,the water film generates a higher THz electric field than the air does under the identical experimental *** the case of air,THz wave generation from liquid water prefers a sub-picosecond(200-800 fs)laser pulse rather than a femtosecond pulse(~50 fs).This observation results from the plasma generation process in *** the two-color excitation scheme,the THz electric field is enhanced by one-order of magnitude in comparison with the one-color ***,coherent control of the THz field is achieved by adjusting the relative phase between the fundamental pulse and the second-harmonic *** eliminate the total internal reflection of THz waves at the water-air interface of a water film,a water line produced by a syringe needle was used to emit THz *** expected,more THz radiation can be coupled out and *** wave generation from other liquids were also tested.

关键词： terahertz(THz)wave generation liquid water laser-induced plasma

40英尺锂电池纯电动铁路冷藏集装箱研制及试验研究

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冷藏技术 2024年第2期47卷 35-41页

作者：何远新张俊徐卫国吴帅常海岳胜娥曹志文中车长江车辆有限公司冷运装备研究所武汉430212

结合我国铁路冷链物流的发展需求,创新研制了以锂电池为动力的纯电40英尺铁路冷藏集装箱,其容积为65立方米,自重7536kg,载重27464kg,采用锂电池类型为磷酸铁锂,总电量为282kW.h,制冷机组采用变频技术和远程监控,研制了高性能隔热保温箱... 详细信息

结合我国铁路冷链物流的发展需求,创新研制了以锂电池为动力的纯电40英尺铁路冷藏集装箱,其容积为65立方米,自重7536kg,载重27464kg,采用锂电池类型为磷酸铁锂,总电量为282kW.h,制冷机组采用变频技术和远程监控,研制了高性能隔热保温箱体。对其强度和综合传热系数进行了有限元仿真和试验测试,各工况下,箱体不同材料处的最大应力均小于材料相应的许用应力、箱体强度满足要求,综合传热系数k测试结果为0.23 W/(m^(2).K)。在我国铁路上海~成都区间开展了首次铁路试运,研究分析了试运数据,表明:试运过程69 h中,运行过程中环境温度最高21.1℃,最低4.8℃,箱体内部设置温度-15℃,锂电池系统电量SOC(State Of Charge)消耗为20%(56.4 kW.h),运输过程中箱体内部温度最高-15.8℃,最低-17℃,箱体内部相对湿度变化范围为67%~44%。研究及试验和运用结果表明,铁路锂电池冷藏集装箱具有绿色节能的显著优点。

关键词：铁路冷链冷藏集装箱纯电动锂电池

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虫草素及其在生猪养殖中的应用

畜牧兽医杂志 2024年第4期43卷 1-7页

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“禁抗令”出台后,“替抗”已成为畜牧业的热门话题。虫草素是蛹虫草的核心活性成分,具有广谱抗菌、抗氧化和调节免疫等功能,且取材和化学成分天然、不易产生抗药性、在体内无有害残留等突出优点,将有可能为“替抗”做出贡献。本文主要... 详细信息

“禁抗令”出台后,“替抗”已成为畜牧业的热门话题。虫草素是蛹虫草的核心活性成分,具有广谱抗菌、抗氧化和调节免疫等功能,且取材和化学成分天然、不易产生抗药性、在体内无有害残留等突出优点,将有可能为“替抗”做出贡献。本文主要对虫草素的来源、合成方式、药理作用进行综述,并重点探讨虫草素在生猪养殖业中的应用进展,旨在为开发虫草素产品并应用于生猪养殖提供一定的参考信息。

关键词：虫草素药理作用畜禽生产

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