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dc.creatorMartín Olalla, José María
dc.date.accessioned2018-05-07T09:23:18Z
dc.date.available2018-05-07T09:23:18Z
dc.date.issued2018-03-28
dc.identifier.citationMartín-Olalla, J.M. (2018). Latitudinal Trends in Human Primary Activities: Characterizing the Winter Day as a Synchronizer. Scientific Reports, 8 (1), 5350-1-5350-21.
dc.identifier.issn2045-2322
dc.identifier.urihttps://hdl.handle.net/11441/74185
dc.description.abstractThis work analyzes time use surveys from 19 countries (17 European and 2 American) in the middle latitude (38–61 degree) accounting for 45% of world population in this range. Time marks for primary activities are contrasted against light/dark conditions. The analysis reveals winter sunrise synchronizes labor start time below 54 degree, occurring within winter civil twilight. Winter sunset is a source of synchronization for labor end times. Winter terminator punctuate meal times in Europe: dinner occurs 3 h after winter sunset time within 1 h; 40% narrower than variability of dinner local times. The sleep-wake cycle of laborers is shown to be related to winter sunrise whereas standard population’s appears to be irrespective of latitude. The significance of the winter terminator depends on two competing factors average labor time (~7 h30 m) and the shortest photoperiod. Winter terminator gains significance when both roughly matches. That is within a latitude range from 38 degree to 54 degree. The significance of winter terminator as a source of synchronization is also related to contemporary year round time schedules: the shortest photoperiod represents the worst case scenario the society faces.es
dc.publisherScientific Reportses
dc.relation.ispartofScientific Reports, 8 (1), 5350-1-5350-21.
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Estados Unidos de América*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectCircadian mechanismes
dc.subjectTime use surveyes
dc.subjectSocial physicses
dc.subjectDaily rhythmes
dc.titleLatitudinal Trends in Human Primary Activities: Characterizing the Winter Day as a Synchronizeres
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Física de la Materia Condensadaes
dc.relation.publisherversionhttp://doi.org/10.1038/s41598-018-23546-5es
dc.identifier.doi10.1038/s41598-018-23546-5
idus.format.extent21 p.
dc.journaltitleScientific Reports
dc.publication.volumen8es
dc.publication.issue1
dc.publication.initialPage5350-1
dc.publication.endPage5350-21

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