<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0185-2574</journal-id>
<journal-title><![CDATA[Estudios de cultura maya]]></journal-title>
<abbrev-journal-title><![CDATA[Estud. cult. maya]]></abbrev-journal-title>
<issn>0185-2574</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Investigaciones Filológicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-25742019000100205</article-id>
<article-id pub-id-type="doi">10.19130/iifl.ecm.53.951</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Sincronía de tiempos rituales y solares en las estructuras de 4 x 65 días de los códices mayas]]></article-title>
<article-title xml:lang="en"><![CDATA[Synchrony of ritual and solar times in the 4 x 65-day structures of the maya codices]]></article-title>
<article-title xml:lang="fr"><![CDATA[Synchronie des temps rituels et solaires dans les structures de 4 x 65 jours des codex mayas]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrera Atuesta]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,aff1  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>53</volume>
<fpage>205</fpage>
<lpage>238</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-25742019000100205&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-25742019000100205&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-25742019000100205&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Este documento presenta una metodología viable para mantener en sincronía fechas solares características del ciclo agrícola mesoamericano con reconocidos ciclos calendáricos y celestes. El procedimiento establecido combina técnicas simples de aritmética modular con el desarrollo de estructuras de 4 x 65 días centradas sobre la referencia solar de origen más probable del calendario civil maya: el solsticio de invierno. Los resultados obtenidos revelan nuevas dimensiones de cómputo entre fechas rituales, representadas por múltiples intervalos canónicos y astronómicos que se desarrollan paralelamente en ambos sentidos del tiempo. El alcance general de los intervalos oscila entre el orden de los días y los siglos, y su precisión suele ser menor de ±1 día.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This paper presents a viable methodology to maintain synchronicity between solar dates characteristic of the Mesoamerican agricultural cycle with recognized calendrical and celestial cycles. The established procedure combines simple techniques of modular arithmetic with the development of 4 x 65 day-structures centered on the solar reference of most probable origin of the Maya civil calendar: the winter solstice. The results obtained reveal new dimensions of computation between ritual dates, represented by multiple canonical and astronomical intervals that develop in parallel in both directions of time. The general scope of the intervals ranges from the order of days to centuries, and their accuracy is usually less than ±1 day.]]></p></abstract>
<abstract abstract-type="short" xml:lang="fr"><p><![CDATA[Resume Ce document propose une méthodologie pratique pour maintenir en synchronie des dates solaires caractéristiques du cycle agricole mésoaméricain avec des cycles calendaires et célestes. Le procédé établi combine des techniques simples d'arithmétique modulaire et le développement de structures de 4 x 65 jours centrées sur la référence solaire, probablement issue du calendrier civil maya: le solstice d'hiver. Les résultats obtenus révèlent de nouvelles modalités de calcul entre les dates rituelles, représentées par des intervalles multiples, canoniques et astronomiques, qui se développent en parallèle dans les deux sens du temps. La portée générale des intervalles oscille entre des durée de l'ordre de plusieurs jours à plusieurs siècles et sa précision est souvent inférieure à ± 1 jour.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[cuenta ritual de 260 días]]></kwd>
<kwd lng="es"><![CDATA[astronomía maya]]></kwd>
<kwd lng="es"><![CDATA[ciclos agrícolas]]></kwd>
<kwd lng="es"><![CDATA[códices mayas]]></kwd>
<kwd lng="es"><![CDATA[calendarios de horizonte]]></kwd>
<kwd lng="en"><![CDATA[260-day ritual count]]></kwd>
<kwd lng="en"><![CDATA[Maya astronomy]]></kwd>
<kwd lng="en"><![CDATA[agricultural cycles]]></kwd>
<kwd lng="en"><![CDATA[Maya codices]]></kwd>
<kwd lng="en"><![CDATA[horizon-based calendars]]></kwd>
<kwd lng="fr"><![CDATA[compte rituel de 260 jours]]></kwd>
<kwd lng="fr"><![CDATA[astronomie maya]]></kwd>
<kwd lng="fr"><![CDATA[cycles agricoles]]></kwd>
<kwd lng="fr"><![CDATA[codex mayas]]></kwd>
<kwd lng="fr"><![CDATA[calendriers d'horizon]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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