{"id":72117,"date":"2018-03-09T23:16:54","date_gmt":"2018-03-09T23:16:54","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estacionalidad-de-nacimientos-en-espana-1941-2000-analisis-cronobiologico\/"},"modified":"2018-03-09T23:16:54","modified_gmt":"2018-03-09T23:16:54","slug":"estacionalidad-de-nacimientos-en-espana-1941-2000-analisis-cronobiologico","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/estacionalidad-de-nacimientos-en-espana-1941-2000-analisis-cronobiologico\/","title":{"rendered":"Estacionalidad de nacimientos en espa\u00f1a (1941-2000). an\u00e1lisis cronobiol\u00f3gico"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Ram\u00f3n Cancho Candela <\/strong><\/h2>\n<p>Se han documentado fluctuaciones peri\u00f3dicas anuales (estacionalidad) en el n\u00famero de nacimientos en m\u00faltiples pa\u00edses. En el presente trabajo se ha investigado sobre la presencia de este fen\u00f3meno en el periodo 1941-2000 en espa\u00f1a, as\u00ed como las diferencias entre los patrones r\u00edtmicos provinciales, y acerca de los cambios seculares a lo largo de las d\u00e9cadas analizadas.  se analizaron 33.421.731 nacidos correspondientes al periodo citado. Las series temporales de nacidos se procesaron mediante la siguiente pauta: 1-normalizaci\u00f3n. 2- an\u00e1lisis cl\u00e1sico de series temporales. 3 &#8211; an\u00e1lisis espectral de fourier. 4-an\u00e1lisis cosinor (ajuste a curva coseno de dos arm\u00f3nicos).  se hall\u00f3 ritmo estacional significativo para el conjunto de nacidos en espa\u00f1a entre 1941-2000, tanto para el periodo de 12 meses, como para el de seis; el ritmo encontrado muestra una morfolog\u00eda bimodal, con un m\u00e1ximo de nacimientos en abril y otro menor en septiembre, correspondientes a las concepciones de julio y diciembre respectivamente.  Los patrones r\u00edtmicos cambiaron a partir de los a\u00f1os 60, en el sentido de p\u00e9rdida de amplitud y desplazamiento del m\u00e1ximo de nacimientos desde marzo en los a\u00f1os 40 al mes de mayo en los 80, no encontr\u00e1ndose ritmo estacional significativo en los 90. Existe agrupamiento geogr\u00e1fico entre provincias con ritmos de caracter\u00edsticas similares. A partir de los a\u00f1os 60, las provincias del interior muestran curvas unimodales y con m\u00e1ximos de nacimientos en el final de la primavera e inicio del verano; las provincias costeras tienden a mostrar curvas bimodales con un m\u00e1ximo principal en oto\u00f1o.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estacionalidad de nacimientos en espa\u00f1a (1941-2000). an\u00e1lisis cronobiol\u00f3gico<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estacionalidad de nacimientos en espa\u00f1a (1941-2000). an\u00e1lisis cronobiol\u00f3gico <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Ram\u00f3n Cancho Candela <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Valladolid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 20\/12\/2004<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Julio Ardura Fern\u00e1ndez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jos\u00e9 Quero jim\u00e9nez <\/li>\n<li>Jos\u00e9 L\u00f3pez sastre (vocal)<\/li>\n<li>Juan  Antonio Madrid perez (vocal)<\/li>\n<li>Antonio Mu\u00f1oz hoyos (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ram\u00f3n Cancho Candela Se han documentado fluctuaciones peri\u00f3dicas anuales (estacionalidad) en el n\u00famero de nacimientos en m\u00faltiples [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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