<?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>2529-850X</journal-id>
<journal-title><![CDATA[Journal of Negative and No Positive Results]]></journal-title>
<abbrev-journal-title><![CDATA[JONNPR]]></abbrev-journal-title>
<issn>2529-850X</issn>
<publisher>
<publisher-name><![CDATA[Research and Science S.L.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2529-850X2020000200001</article-id>
<article-id pub-id-type="doi">10.19230/jonnpr.3316</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Tan fácil (o difícil) como hervir un huevo]]></article-title>
<article-title xml:lang="en"><![CDATA[As easy (or difficult) as boiling an egg]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castellanos-Ruelas]]></surname>
<given-names><![CDATA[Arturo F]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-Rodríguez]]></surname>
<given-names><![CDATA[Francisco J]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Flores]]></surname>
<given-names><![CDATA[Virginia M]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castañeda Pérez]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Yucatán Facultad de Ingeniería Química ]]></institution>
<addr-line><![CDATA[Yucatán ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<volume>5</volume>
<numero>2</numero>
<fpage>137</fpage>
<lpage>140</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S2529-850X2020000200001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S2529-850X2020000200001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S2529-850X2020000200001&amp;lng=en&amp;nrm=iso"></self-uri></article-meta>
</front><back>
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<source><![CDATA[Joy of Cooking]]></source>
<year>1975</year>
<publisher-loc><![CDATA[Indianapolis, NY, USA ]]></publisher-loc>
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<source><![CDATA[The science of boiling an egg]]></source>
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<publisher-name><![CDATA[University of Exeter]]></publisher-name>
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<label>3</label><nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Norma Oficial Mexicana NOM-159-SSA1-2016. Productos y servicios. Huevo y sus productos. Disposiciones y especificaciones sanitarias. Método de prueba.]]></article-title>
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<year>2018</year>
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</person-group>
<article-title xml:lang=""><![CDATA[Air-impingement cooling of boiled eggs: Analysis of flow visualization and heat transfer]]></article-title>
<source><![CDATA[J of Food Engineering]]></source>
<year>2007</year>
<volume>79</volume>
<page-range>920-8</page-range></nlm-citation>
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</back>
</article>
