简介：ThefirstAsia-PacificComparisonofAbsoluteGravimeters(APMP.M.G-K1)wasorganizedbytheNationalInstituteofMetrology(NIM)ofChinafromDecember21,2015toMarch25,2016inChangping,Beijing.Ourcompactcoldatomgravimeter(CCAG)wastransportedfromHangzhoutoBeijingwithalongdistanceofabout1200kmtoparticipateinthiscomparison.TheCCAGistheonlyone,tothebestofourknowledge,thatisbasedontheprincipleofatominterferometryamongalltheinstruments.Absolutegravityintheindicatedthreetestsiteshasbeenmeasuredasrequestedbytheorganizer.ThesensitivityofourCCAGisestimatedtobe90μGal∕Hzp,evenwhenthemeasurementsarecarriedoutwithoutanyvibrationisolation.Besides,theaccuracyofthisgravimeterhasbeenevaluatedtobeabout19μGalbyconsideringthesignificantsystemerrors.Ourresultsshowagoodagreementwiththegivenreferencevalue.

简介：Purpose:Toverifyevidenceofsubclinicalalterationsthroughself-reportedparticipationrestrictionsinnormalhearingindividualsandcongenitalhypothyroidismpatients.Methods:Ananalytical,quantitative,cross-sectionalexploratorystudywitha1:1ratio,consistingofaconveniencesampleof86normalhearingindividualswith(n=42)andwithout(n=44)congenitalhypothyroidismdiagnosis.Allparticipantsunderwenttonalandspeechaudiometry,immitanceanddistortionproductotoacousticemissions.Theresearchersexcludedpeoplewithhearingloss,geneticsyndromesandmetabolicdiseases.Theinstrumentusedforevaluateofself-reportedparticipationrestrictionswastheHHIE-adaptedquestionnaire,composedof25questions,12ofwhichweresocialdomainand13emotionaldomain.Student'sttestandchi-squaretestwereusedforstatisticalanalysisatasignificancelevelof5%.Results:Therewasasignificant(p<0.001)self-reportedparticipationrestrictionsinCH(61.9%),withagreaterrelevanceforthesocialdomain(p=0.002).Therewasagreaterfrequencyofmild/moderate(40.5%)andhigherprevalenceofassociationwithclinicalfactorsandadherencetotreatment.Conclusion:Thefindingsindicatethatself-reportedparticipationrestrictionsinnormalhearingindividualswithcongenitalhypothyroidismwasmoresignificantthaninthenon-exposedgroup,suggestingevidenceofsubclinicalauditoryabnormalitiesinthispopulation.