简介：在日常生活中，我们经常会谈到交通方式，比如，步行、骑车、自驾车，坐公共汽车、乘火车或飞机等等。作为学生的你是怎样去学校的呢？你知道如何表达交通方式吗？请看下面的短文吧。

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简介：Whetherthegenerationaffectedbythefamilyplanningwillbenefitdirectlyisthekeytotestwhetherthepolicyimplicationsarethesametocollectiveandindividual.Thereareresearchesonthefamilyplanning'sconsequencesareusuallyinthemacro-level.Inordertodiscoveryhowfamilyplanningdirectlyaffectstheindividual,thispaperusemicrodatafromChinaFamilyPanelStudies(CFPS)2010totesttheimpactoffamilyplanningonchildren'spersonalincome.Theresultsshowsthat'quantity-qualitytradeoff'hypothesisholdsonhumancapitallevelsinChina,andtheimplementationoffamilyplanningpolicyeffectivelyincreaseschildren'seducationlevel,butthesocialcapitaleffectofsiblingsisalsoreducedbythefamilyplanningpolicy.Consideringthetwokindsofeffects,thefamilyplanningpolicyhasnotsignificantlyaffectchildren'spersonalincome.

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简介：Cardiologistswhoseepatientsonageneralcardiologyservicearebeginningtoseeanincreasingnumberofpatientswhohavereceivedaprimarypreventionimplantablecardiacdefibrillator(ICD)buthaveneverhaditfire.ThereareadditionallyanumberofpatientswhohaveinappropriatefiringofICDs.Inappropriateshocksoccurinupto40%ofpatientswithanICD.Themaincauseissupraventriculartachyarrhythmia,includingsinustachycardia,atrialfibrillation,andotherrapidsupraventriculararrhythmias.

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简介：Background:Apreviousstudyhasreporteda50%reductionindisuseatrophyofthequadricepsduringthefirst14daysafteranteriorcruciateligament(ACL)reconstruction.Afollow-uptrialisneededtoconfirmthesepromisingresults.ThepresentstudyaimstoinvestigatetheeffectofanocclusionstimulusonquadricepsatrophyafterACLreconstruction.Methods:Atotalof24subjectsparticipatedinthestudy.Theywererandomizedintotwogroups.Startingthe2nddayaftersurgery,theocclusiongroupreceivedanocclusionstimulusfor5min,followedbyremovaloftheocclusivepressurefor3min.Thiswasrepeatedfivetimesinonetrainingsession,twicedaily.Duringtheperiodofocclusivestimulus,thesubjectsperformed20lowloadexercisesforthequadriceps.Thecontrolgroupfollowedthesameexerciseprotocol,butwithouttheocclusionstimulus.Changesinquadricepsanatomicalcrosssectionarea(ACSA)weremeasuredusingaxialmagneticresonance(MR)imagesat40%and50%ofthelengthofthefemur.Results:BothgroupshadasignificantreductionofquadricepsACSAfrom2daysbeforesurgeryto16daysaftersurgery.Duringtheinterventionperiod,theocclusiongrouplost13.8%±1.1%(mean±SEM)andthecontrolgrouplost13.1%±1.0%oftheirquadricepsACSA,respectively.Therewasnosignificantdifferencebetweentheocclusionandcontrolgroupswithregardstoatrophyofthequadricepsmuscles.Conclusion:Inconflictwithotherstudiesusingasimilarprotocol,applicationofbloodflowrestrictionthefirst14daysafterACLreconstructiondidnotreducequadricepsACSAmuscleatrophymeasuredbyMRinapopulationofathletes.

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简介：WeinvestigateinthispapertheinfluenceofslowlightonthebalancebetweentheKerrandtwo-photonabsorption(TPA)processesinsiliconslottedhybridnonlinearwaveguides.Threetypicalsiliconphotonicwaveguidegeometriesarestudiedtoestimatetheinfluenceofthelightslow-downfactoronthemodefieldoverlapwiththesiliconregion,aswellasonthecomplexeffectivenonlinearsusceptibility.Itisfoundthatslottedphotoniccrystalmodestendtofocalizeintheirhollowcorewithincreasinggroupindex(n_G)values.Consideringahybridintegrationofnonlinearpolymersinsuchslottedwaveguides,arelativedecreaseoftheTPAprocessbymorefactorof2ispredictedfromn_G=10ton_G=50.Asawhole,thisworkshowsthattherelativeinfluenceofTPAdecreasesforslottedwaveguidesoperatingintheslowlightregime,makingthemasuitableplatformforthird-ordernonlinearoptics.