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简介：Background:RunningisbecominganincreasinglypopularactivityamongAmericanswithover50millionparticipants.Runningshoeresearchandtechnologyhascontinuedtoadvancewithnodecreaseinoverallrunninginjuryrates.Agrowinggroupofrunnersaremakingthechoicetotrytheminimalorbarefootrunningstylesofthepre-modemrunningshoeera.Thereissomeevidenceofdecreasedforcesandtorquesonthelowerextremitieswithbarefootrunning,butnocleardataregardinghowthiscorrespondswithinjuries.Thepurposeofthissurveystudywastoexaminefactorsrelatedtoperformanceandinjuryinrunnerswhohavetriedbarefootrunning.Methods:TheUniversityofVirginiaCenlcrforEnduranceSpor!createda10-questionsurveyregardingbarefootrunningthaiwa.spo.stedonavarietyofrunningblogsandFacebookpages.Percentageswerecalculatedforeachquestionacrossallsurveys.Fivehundredandnineparticipantsrespondedwithover93%ofthemincorporatingsometypeofbarefootrunningintotheirweeklymileage.Results:Amajorityoftheparticipants(53%)viewedbarefootrunningasatrainingtooltoimprovespecificaspectsoftheirrunning.However,closetohalf(46%)viewedbarefoottrainingasaviablealternativetoshoesforloggingtheirmiles.Alargeportionofrunnersinitiallytriedbarefootrunningduetothepromiseofimprovedefficiency(60%).anattempttogetpastinjury(53%)and/ortherecentmediahypearoundthepractice(52%).Alargemajority(68%)ofrunnersparticipatinginthestudyexperiencednonewinjuriesafterstartingbarefootrunning.Infact,mostrespondents(69%)actuallyhadtheirpreviousinjuriesgoawayafterstartingbarefootrunning.Runnersrespondedthattheirpreviousknee(46%),foot(19%),ankle(17%),hip(14%),andlowback(14%)injuriesallproceededtoimproveafterstartingbarefootrunning.Conclusion:Priorstudieshavefoundthatbarefootrunningoftenchangesbiomechanicscomparedtoshodrunningwithahypothesizedrelationshipofdecreasedinjuries.Thispaperreports

简介：Publicationsofarticleswithphysicalliteracyasatopichaveincreaseddramaticallysincethebeginningof2000s.Theaimofthispaperisto,throughanexplorativeliteratureoverviewwithaninductiveapproach,analyzefrequent,andsignificantthemesinpublishedpeerreviewedarticles,withafocusonphysicalliteracy.ThedatabaseEBSCOhasbeenusedwiththeidentifiers'physicalliteracy'and'physicalliteracyandevidence'.FurthermoreICSSPEBulletin'sspecialissueonphysicalliteracyhasbeenincludedintheoverview.Thefindingshaveresultedinthreekeythemes:assumptionsoftheconceptphysicalliteracyanditseducativerole,sportsdevelopmentandphysicalliteracy,andassessmentandphysicalliteracy.Futurestudiesareneededtoexamineiftheadvocatedpedagogicalstrategiesbasedontheconceptphysicalliteracyhaveledtoareorganizedandrevitalizedschoolsubject.Thereisalsoanexistingcritiquetowardsmakingphysicalliteracyanidealisticneutralconceptorsynonymwithfundamentalmovementskillsorsportstalentidentification.Theroleofhighereducationemergesascrucialforthenextstepofthedevelopmentofthescientificframeworkasthisinvolveshowphysicalliteracywillbesociallyconfigured,nurtured,andembodiedinpractice.Copyrightó2015,ShanghaiUniversityofSport.ProductionandhostingbyElsevierB.V.Allrightsreserved.

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简介：“恐龙之乡”——山东诸城惊爆恐龙考古大发现：在300多米长的斜坡上密布着巨大的恐龙骨骼化石，宛如一条浮雕长廊，成为目前世界范围内已发现曝露面积最大的恐龙化石群，也成为一道绝无仅有的自然地理奇观。

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简介：Toimproveseparateeffectofbinaryheterogeneousazeotropeinthemagneticfieldwithdifferentmagneticinductionintensity,theinfluenceofmagneticfieldontherectificationprocessofbinaryheterogeneousazeotropewasinvestigatedwith1-butanol-watersystem.Theresultsshowthatthecompositionofliquid-liquidphaseequilibriumof1-butanol-watersystemhasdefinitelychanged,thecompositionof1-butanolinlightphase(1-butanollayer)increasesby1.17%-1.63%andthecompositionofwaterinheavyphase(waterlayer)increasesby1.21%-1.58%undertheinfluenceofmagneticfield.Byseparationofmagnetization,thecompositionof1-butanolincreasesby0.8%-1.2%andtherecoveryratioof1-butanolincreasesby1.6%-2.5%.Magneticfieldhaspositiveeffect,however,themagnetizedeffectisnotinproportiontomagneticinductionintensityandhasanoptimumcondition,intherangeof0.25T-0.3T.

简介：把没有庄稼植被，广泛地在国外被使用的平衡模型，温度和湿度在完整的照明回答联合温室土壤的模型的精力基于表面被建立。就在温室，弱太阳的放射和土壤的很少表面蒸发的相对关上的环境而言，在不同土壤层的水内容的每日的变化可以被忽视，然后，温度和湿度地联合模型被简化到一个一个维的热散开模型。简化模型和湿度地联合模型采用了土壤的一样的计算方法物理参数和热散开的分离格式微分方程，并且没有庄稼植被，在完整的照明在温室土壤被用于温度地的连续模拟。通过在模拟结果和试验性的数据之间的比较，简化模型的精确被验证。在24h周期的土壤热流动变化的典型规则也被获得。

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简介：Epoxyresinlaminateontowhichapairofcopperfoilwasprintedwasemployedastestsamples.Thesampleswereplacedinanartificialatmosphericchamber,whichwasvacuumedbyarotarypumpfrom100kPato5kPa.ThemagneticfieldwasproducedbypermanentmagnetsthatwereassembledtomakeE×Bdriftawayfrom,intoandparalleltothesamplesurface,respectively.Magneticfluxdensitywasadjustedat120mT,180mTand240mTrespectively.Byapplyinganegativebiasvoltagebetweentheelectrodes,the...

简介：AcutelyisolatedmousehippocampalCA3pyramidalneuronswereexposedto3mTstaticmagneticfield,andthecharacteristicsoftransientoutwardK+channelwerestudiedusingthewhole-cellpatch-clamptechnique.Theexperimentrevealedthattheamplitudeoftransientoutwardpotassiumchannelcurrentwasreduced.Themaximumactivatedcurrentdensitiesofcontrolgroupandexposuregroupwere163.62±20.68pA/pFand98.74±16.57pA/pF(n=12,P<0.01)respectively.Thestaticmagneticfieldexposureaffectedtheactivationandinactivationprocessoftransientoutwardpotassiumchannelcurrent.Duetothemagneticfieldexposure,thehalf-activationvoltageoftheactivationcurveschangedfrom5.59±1.96mVto27.87±7.24mV(n=12,P<0.05),andtheslopefactorchangedfrom19.43±2.11mVto25.87±4.22mV(n=12,P<0.05).Thehalf-inactivationvoltageoftheinactivationcurvesalsochangedfrom-56.09±0.89mVto-57.16±1.10mV(n=12,P>0.05)andtheslopefactoroftheinactivationcurvesfrom8.69±0.80mVto10.87±1.02mV(n=12,P<0.05).TheresultsshowthatthestaticmagneticfieldcanchangethecharacteristicsoftransientoutwardK+channel,andaffectthephysiologicalfunctionsofneurons.

简介：Researchindicatesthathighlevelsofsedentarybehavior(sittingorlyingwithlowenergyexpenditure)areadverselyassociatedwithhealth.Akeyfactorinimprovingourunderstandingoftheimpactofsedentarybehavior(andpatternsofsedentarytimeaccumulation)onhealthistheuseofobjectivemeasurementtoolsthatcollectdateandtime-stampedactivityinformation.OnesuchtoolistheactivPALmonitor.Thisthigh-worndeviceusesaccelerometer-derivedinformationaboutthighpositiontodeterminethestartandendofeachperiodspentsitting/lying,standing,andstepping,aswellassteppingspeed,stepcounts,andposturaltransitions.TheactivPALisincreasinglybeingusedwithinfield-basedresearchforitsabilitytomeasuresitting/lyingviaposture.WesummarisekeyissuestoconsiderwhenusingtheactivPALinphysicalactivityandsedentarybehaviorfield-basedresearchwithadultpopulations.ItisintendedthatthefindingsanddiscussionpointsbeinformativeforresearcherswhoarecurrentlyusingactivPALmonitorsorareintendingtousethem.Pre-datacollectiondecisions,monitorpreparationanddistribution,datacollectionconsiderations,andmanualandautomateddataprocessingpossibilitiesarepresentedusingexamplesfromcurrentliteratureandexperiencesfrom2researchgroupsfromtheUKandAustralia.

简介：Thispapercapturesdatafromacollaborativeschooldistrict-universitydesignedcasestudythatlooksintosecondaryin-serviceteachers’perceptionsofwhatafirst-yearteachershouldknowandbeabletodotobepreparedtobesuccessfulinhisorherclassroom.Theseinsightshelpedtodesignateam-taughtcourseinFall2017forpreservicesocialstudiesteachersandtolaytheframeworkforfutureteaminginitiativesintheCollegeofEducationandtheschooldistrict.

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简介：Rapidprotoypemanufacturing(RPM)isanewadvancedmanufacturingtechnology,whichisbasedonthephilosophyofmaterialsincreaingoflaybylayforming,Zeroadventurerapiddesign/manufacturingcanberealizedwithrapidprototypesof3DCADofproducts,RapidprotoypinghasbeenaneffectivetoolofR&Dofnewproducts,Anovelrapidprototypingandmanufacturing(RP&M)techniqueisbroughforward,Theprincipleoftheprocessistoformlayeredsectionsandtomaketheprototypeorpartlayer-by-layerbydeflection-pro-jectionofelectricchargedpowdergranulespassingthroughelectricormagneticfileldandbycontrollablelineandfieldscanofthepowdergranulebeam.Thefeasibilityissueoftheprocessistheoreticallyandexperimentallyinvestigated,Itshowthatdeflection-projectionofelectricchagedpowdergranulesbeampassingthroughelectricfieldcanbesignificantandfeasibletotherapidprotoypingtechnique.

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