简介：AbstractBackgrounds:Physical activity (PA) and sedentary behavior (SB) have been associated with mortality, while the joint association with mortality is rarely reported among Chinese population. We aimed to examine the independent and joint association of PA and SB with all-cause mortality in southern China.Methods:A cohort of 12,608 China Hypertension Survey participants aged ≥35 years were enrolled in 2013 to 2014, with a followup period of 5.4 years. Baseline self-reported PA and SB were collected via the questionnaire. Kaplan-Meier curves (log-rank test) and Cox proportional hazards regression were performed to evaluate the associations of PA and SB on all-cause mortality.Results:A total of 11,744 eligible participants were included in the analysis. Over an average of 5.4 years of follow-up, 796 deaths occurred. The risk of all-cause mortality was lower among participants with high PA than those with low to moderate level (5.2% vs. 8.9%; hazards ratio [HR]: 0.75, 95% confidence interval [CI]: 0.61-0.87). Participants with SB ≥ 6 h had a higher risk of all-cause mortality than those with SB <6 h (7.8% vs. 6.0%; HR: 1.37, 95% CI: 1.17-1.61). Participants with prolonged SB (≥6 h) and inadequate PA (low to moderate) had a higher risk of all-cause mortality compared to those with SB < 6 h and high PA (11.2% vs. 4.9%; HR: 1.67, 95% CI: 1.35-2.06). Even in the participants with high PA, prolonged SB (≥6 h) was still associated with the higher risk of all-cause mortality compared with SB < 6 h (7.0% vs. 4.9%; HR: 1.33, 95% CI: 1.12-1.56).Conclusions:Among Chinese population, PA and SB have a joint association with the risk of all-cause mortality. Participants with inadequate PA and prolonged SB had the highest risk of all-cause mortality compared with others.

简介：Purpose:Thisstudyaimstocompareadolescents’cardiometabolicriskscorethroughanintegrativeclassificationofphysicalactivity(PA),whichinvolvesthecombinationofmoderate-to-vigorousphysicalactivity(MVPA)andsedentarybehavior(SB).Methods:Across-sectionalstudyderivedfromtheHealthyLifestyleinEuropebyNutritioninAdolescenceCross-SectionalStudydatabase(2006-2008)wasconductedinadolescents(n=548;boys,47.3%;14.7±1.2years)from10Europeancities.MVPAandSBwereobjectivelymeasuredusingaccelerometry.Adolescentsweredividedinto4categoriesaccordingtoMVPA(meetingornotmeetingtheinternationalrecommendations)andthemedianofSBtime(aboveorbelowsex-andage-specificmedian)asfollows:High-SB&Inactive,Low-SB&Inactive,High-SB&Active,andLow-SB&Active.Aclusteredcardiometabolicriskscorewascomputedusingthehomeostaticmodelassessment,systolicbloodpressure,triglycerides,totalcholesterol/high-densitylipoproteincholesterol,sum4skinfolds,andcardiorespiratoryfitness(CRF).AnalysesofcovariancewereperformedtodiscerndifferencesoncardiometabolicriskscoresamongPAcategoriesandeachhealthcomponent.Results:ThecardiometabolicriskscorewaslowerinadolescentsmeetingtheMVPArecommendationandwithlesstimespentinSBincomparisontothehigh-SB&Inactivegroup(p<0.05).However,nodifferenceincardiometabolicriskscorewasestablishedbetweenHigh-SBorLow-SBgroupsininactiveadolescents.ItisimportanttonotethatCRFwastheonlyvariablethatshowedasignificantmodification(higher)whenchildrenwerecomparedfromthecategoryofphysicallyinactivewith"active"butnotfromhigh-tolow-SB.Conclusion:Beingphysicallyactiveisthemostsignificantandprotectiveoutcomeinadolescentstoreducecardiometabolicrisk.LowerSBdoesnotexhibitasignificantandextrabeneficialdifference.

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简介：Background:Wearablemonitors（WMs）areusedtoestimatethetimespentinsedentarybehaviors（SBs）andlight-intensityphysicalactivities（LPAs）andtheirassociatedenergycost;however,theaccuracyofWMsinmeasuringbehaviorsonthelowerendoftheintensityspectrumisunclear.Theaimofthisstudywastoassessthevalidityof3WMs（ActiGraphGT3X+;activPAL,andSenseWear2）inestimatingtheintensityofSBandLPAinadultsascomparedwiththecriterionmeasureofoxygenuptake（VO2）measuredbyindirectcalorimetry.Methods:Sixteenparticipants（age:25.38±8.58years）woretheActiGraphGT3X+,activPAL,andSenseWear2devicesduring7sedentary-to-lightactivities.VO2（mL/kg/min）wasestimatedbymeansofaportablegasanalyzer,OxyconMobile（Carefusion,YorbaLinda,CA,USA）.Alldataweretransformedintometabolicequivalentsandanalyzedusingmeanpercentageerror,equivalenceplots,Bland-Altmanplots,kappastatistics,andsensitivity/specificity.Results:MeanpercentageerrorwaslowestfortheactivPALforSB（14.9%）andLPA（9.3%）comparedwithotherWMs,whichwere>21.2%.NoneoftheWMsfellwithintheequivalencyrangeof±10%ofthecriterionmeanvalue.Bland-AltmanplotsrevealednarrowerlevelsofagreementwithallWMsforSBthanforLPA.KappastatisticswerelowforallWMs,andsensitivityandspecificityvariedbyWMtype.Conclusion:NoneoftheWMstestedinthisstudywereequivalentwiththecriterionmeasure（VO2）inestimatingsedentary-to-lightactivities;however,theactivPALhadgreateroverallaccuracyinmeasuringSBandLPAthandidtheActiGraphandSenseWear2monitors.

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简介：有分叉的烃链的酚衍生物的聚集和deaggregation行为在CH3OH和缓冲区答案被学习了。有聚集数字测量和房间粘附实验的联合，目标分子的deaggregating能力上的结构效果被讨论。结果显示2-phytyl-4-methoxylphenol(11)是在学习的系统的最有效的deaggregator。

简介：在激光，微波和类似的技术的进展导致了包含皮组织的热治疗的最近的开发。这些处理的有效性被管理由联合了影响织物的热、机械、生物、神经的回答：一个有利相互作用相对小的疼痛和没有持续副作用地导致一个过程。当前，尽管每个行为的方面到建立并且理解的某个程度，任何一个都不在学科交差的区域存在到日期。一条高度学科交差的途径为学习皮肤的biothermomechanical行为被要求，包含简历热转移，简历力学和生理学。对这个题目恰当的全面文学评论在这篇论文被介绍，盖住四个题目区域：(a)皮肤结构，(b)皮肤简历热转移和热损坏，(c)皮肤简历力学，和(d)皮肤biothermomechanics。为进一步的研究的主要问题，问题，和话题也被构画出。这评论发现在每这些方面的重要进展在最近的年里被完成了。尽管焦点被放在皮肤织物的biothermomechanical行为之上，在这篇论文考察的基本概念和方法论可能也为学习另外的软纸巾是适用的。

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简介：Theeffectsofarseniconthecathodepolarizationprocessinzincelectrowinning,itskineticsequation,parametersandpolarizationmechanismwerestudiedbymultipleelectrochemistryapproaches.Theexperimentalresultsshowthat,if[As3+]≥3mg/L,electrowinningfirstentersintostationarypassivationrange,andthenentersintoprecipitationrange,whichindicatesthatthedepolarizationfunctionofimpurityarseniciszincelectrowinning.

简介：Thephotoelectrochemicalbehaviorofpolyaniline（PAn）filmwasstudiedinaqueouselectrolytesolutioncontainingFe（CN）63-/Fe（CN）+4-redoxcouple.ItwasfoundthatPAnfilmspossessthepropertiesofp-typesemiconducterandacathodicphotocurrentashighas700μA/cm2wasobservedwhenirradiatedunderpolychromaticlightof100mW/cm2.

简介：绝缘的常数和绝缘的损失，以及silylated纤维素的绝缘的松驰的活化能从10～50度C在频率范围10**5以内被测量到10**7Hz和温度范围。测试样品是有乙烯肼的激活的纤维素，与氢氧化钠并且在silylation前后使纤维素失去活性。大小用multi-deka-meter被执行。纤维素分子是处理比与氢氧化钠与乙烯肼激活的更多。通常，silylation引起绝缘的经常、绝缘的损失的显著减少，同时，silylated样品与氢氧化钠和乙烯肼与棉绒ers的预告的处理被影响。(编辑作者摘要)28个裁判员。

简介：Basedonaseriesofnumericalcalculations,thebehaviorofflowfieldinobstructedsquarebuoyantverticaljetissummarizedandanalyzed.Basedontheaxiallinevelocitydistribution,theflowafterthedisccanbedividedintothreeregions,i.e.,recirculationregion,transitionalregionandself-similarregionThecharacteristicofself-similarityofuprightvelocitywasvalidated.Thethreeregionscanalsobedistinguishedbasedontheaxialvelocity.Theaxialvelocityinself-similarregionwasfoundtoobeythesamelawandtheformulapresentedbyintroducingthevelocityexpressionusedbyChenandRodi.Theisolinesofpressureoncross-sectionsofdifferentheightsweredisplayedandtheproduction,expansion,breakinganddisappearingofnegativepressureregionswerefound.

简介：疲劳行为在期间高测试的周期疲劳和5A06铝的张力的行为就anisotropy而言的合金被学习。标本的二种类型包括的纵的标本(与滚动平行方向)并且横向的标本(对滚动方向垂直)被准备。红外线的thermography被采用到监视温度进化在疲劳和张力的测试期间。在二个方向的温度进化曲线对比地被分析。它被发现温度进化在疲劳过程期间拥有四阶段：起始的温度上升舞台，慢温度衰落阶段，快速的温度上升阶段，和物件顶端的装饰物温度衰落舞台。产生四个阶段的机制的热被讨论。明显的差别罐头在疲劳力量在纵的标本和横向的标本之间被发现并且使生活疲劳。纵的标本的疲劳力量和疲劳生活比横向的标本的那些高。在期间张力并且疲劳测试过程，在横向的方向的破裂温度在纵的方向比那高。借助于红外线的thermography的疲劳力量预言由传统的方法与那有好一致性。

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简介：我们在一棵锯季度的白杨上使用了声学的测试在声学的波浪上学习木头anisotropy和洞缺点的效果的木材速度和旅行路径，和我们在木头调查了声学的波浪繁殖行为。木材标本首先处于未修改的状况被测试然后在在实验室的声学的波浪的播送时间调节的改变尺寸确定的洞缺点的介绍以后测试了。标本的光线的节上的二维的声学的波浪轮廓地图然后基于试验性的数据被模仿并且分析。当波浪通过木头在各种各样的方向过去了，我们测试了在木头谷物和声学的波浪速度之间的关系。伍德anisotropy在速度和通过超过的木材传递纵的波浪的声学的波浪，和速度的旅行路径上有重要效果光线的速度。而且，洞缺点在木材的光线的节上改变了声学的波浪时间轮廓。从刺激的声学的波浪运输比在未经触动的木头更慢慢地在有缺点的木头在一个洞后面指向这个区域。

简介：Thedynamicresponseofthenon-linearelasticsimplysupportedbeamsubjectedtoaxialforcesandtransverseperiodicloadisstudied.Melnikovmethodisusedtoconsiderthedynamicbehav-iorofthesystemwhosepost-bucklingpathissteady.Theeffectofthehigherordertermsinthecon-trollingequationistakenintoaccount.Itisfoundthatthefifth-ordertermshaveagreatinfluenceonthedynamicbehaviorofthesystem.Theresultshowsthatthereexisteitherhomoclinicorbitsorhete-roclinicorbitsinthesystem.Inthispaper,thecriticalvaluesofthesystementeringchaoticstatesaregiven.Thediagramofanexampleisshown.

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