<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Kazan medical journal</journal-id><journal-title-group><journal-title xml:lang="en">Kazan medical journal</journal-title><trans-title-group xml:lang="ru"><trans-title>Казанский медицинский журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0368-4814</issn><issn publication-format="electronic">2587-9359</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">64023</article-id><article-id pub-id-type="doi">10.17816/kazmj64023</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Chronobiology of labor activity</article-title><trans-title-group xml:lang="ru"><trans-title>Хронобиология родовой деятельности</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Bayteryak</surname><given-names>I. К.</given-names></name><name xml:lang="ru"><surname>Байтеряк</surname><given-names>И. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Department of Obstetrics and Gynecology No. 2</p></bio><bio xml:lang="ru"><p>Кафедра акушерства и гинекологии № 2</p></bio><email>info@eco-vector.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Kazan State Medical University</institution></aff><aff><institution xml:lang="ru">Казанский государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="1998-05-15" publication-format="electronic"><day>15</day><month>05</month><year>1998</year></pub-date><volume>79</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>193</fpage><lpage>195</lpage><history><date date-type="received" iso-8601-date="2021-03-23"><day>23</day><month>03</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-03-23"><day>23</day><month>03</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 1998, Bayteryak I.К.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 1998, Байтеряк И.К.</copyright-statement><copyright-year>1998</copyright-year><copyright-holder xml:lang="en">Bayteryak I.К.</copyright-holder><copyright-holder xml:lang="ru">Байтеряк И.К.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by-nc-sa/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://kazanmedjournal.ru/kazanmedj/article/view/64023">https://kazanmedjournal.ru/kazanmedj/article/view/64023</self-uri><abstract xml:lang="en"><p>Circadian biologic rhythms are studied and the coefficient of their partici pation in labor is revealed. By means of cosinor — analysis of labor histories of 6572 women the polar acrophases of labor activity and their relativity to photoperiods of twenty—four hours in discrete ages are established.</p></abstract><trans-abstract xml:lang="ru"><p>К настоящему времени существует более сорока методов родовызывания, однако практический опыт показывает, что ни одному из них нельзя отдать предпочтение, ибо итоги зависят не только от избранного метода, но и от готовности организма роженицы к родам.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Kazan Medical archive</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Казанский медицинский архив</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Асланян Н.Л. Хронобиология выделительной функции почек. — Ереван, 1989.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Баевский Р.М. Временная организация функций. — М.—Новосибирск, 1976.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Деряпа Н.Р., Мошкин М.П., Посный В. С. Проблемы медицинской биоритмологии. — М., 1985.</mixed-citation></ref></ref-list></back></article>
