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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">geomorf</journal-id><journal-title-group><journal-title xml:lang="ru">Геоморфология и палеогеография</journal-title><trans-title-group xml:lang="en"><trans-title>Geomorfologiya i Paleogeografiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2949-1789</issn><issn pub-type="epub">2949-1797</issn><publisher><publisher-name></publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31857/S0435428121020115</article-id><article-id custom-type="elpub" pub-id-type="custom">geomorf-1547</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Методика научных исследований</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Scientific Research Methods</subject></subj-group></article-categories><title-group><article-title>Сравнительный анализ распределений площадей озер в пределах озерно-термокарстовых и эрозионно-термокарстовых равнин</article-title><trans-title-group xml:lang="en"><trans-title>Comparative analysis of lake area distributions for lacustrine thermokarst plains and thermokarst plains with fluvial erosion</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Викторов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Victorov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><email xlink:type="simple">dist@geoenv.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Орлов</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Orlov</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дорожко</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Doroghko</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт геоэкологии им. Е.М. Сергеева РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Sergeev Institute of Environmental Geoscience RAS (IEG RAS)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>11</day><month>10</month><year>2021</year></pub-date><volume>52</volume><issue>2</issue><issue-title>Геоморфология</issue-title><fpage>29</fpage><lpage>38</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Викторов А.С., Орлов Т.В., Дорожко А.Л., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Викторов А.С., Орлов Т.В., Дорожко А.Л.</copyright-holder><copyright-holder xml:lang="en">Victorov A.S., Orlov T.V., Doroghko A.L.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://geomorphology.igras.ru/jour/article/view/1547">https://geomorphology.igras.ru/jour/article/view/1547</self-uri><abstract><p>Целью исследований являлся сравнительный анализ распределения площадей озер в пределах эрозионно-термокарстовых и озерно-термокарстовых равнин на основе подходов математической морфологии ландшафта с использованием материалов дистанционных съемок. В основу проводимого исследования был положен анализ математических моделей морфологических структур ландшафтов озерно-термокарстовых и эрозионно-термокарстовых равнин в условиях “синхронного старта” термокарстовых процессов. Эмпирический анализ охватывал 22 эталонных участка. Участки расположены в различных геоморфологических условиях и относятся как к зоне сплошного развития многолетнемерзлых пород, так и к зонам развития прерывистой и островной мерзлоты. Теоретически обосновано и эмпирически подтверждено, что вероятностное распределение площадей озер в пределах озерно-термокарстовых равнин в разных физико-географических условиях подчиняется преимущественно логнормальному распределению, гамма-распределение почти не встречается. Напротив, для вероятностного распределения площадей озер в пределах эрозионно-термокарстовых равнин в разных физико-географических условиях в соответствии с моделью в большинстве случаев справедливо одновременно как гамма-распределение, так и логнормальное распределение площадей озер. Это не исключает развития эрозионно-термокарстовых равнин с асинхронным стартом, на которых будут реализовываться другие виды распределений. Таким образом, выполненное исследование подтверждает справедливость математических моделей развития морфологической структуры ландшафтов (морфологических комплексов) озерно-термокарстовых и эрозионно-термокарстовых равнин для случая синхронного старта. При количественной оценке вероятности поражения инженерного сооружения в пределах озерно-термокарстовых и в пределах эрозионно-термокарстовых равнин должны использоваться разные методы, которые могут быть получены на основе анализа соответствующей математической модели.</p></abstract><trans-abstract xml:lang="en"><p>A comparative analysis of lake area distributions for lacustrine thermokarst plains and thermokarst plains with fluvial erosion has been performed using he mathematical morphology of landscapes and remote sensing. We applied mathematical models of landscape patterns for lacustrine thermokarst plains and thermokarst plains with fluvial erosion under the “synchronous start” of the thermokarst conditions. Twenty-two key sites were included in the empirical testing. The empirical testing involves 22 key sites. These sites have different geomorphological environments within the areas of either continuous and discontinuous permafrost or sporadic permafrost. We have theoretically revealed and validated it empirically that in different natural environments, the lake area distribution within lacustrine thermokarst plains generally corresponds to the lognormal distribution while the gamma-distribution is almost absent. On the contrary, the model shows that lake area distribution within thermokarst plains with fluvial erosion generally corresponds to both the lognormal and gamma-distributions. This result does not exclude different scenarios of lake area distribution patterns for the plains with fluvial erosion under an asynchronous start of the thermokarst. The empirical testing proves the validity of the mathematical models of that the morphological patterns for the lacustrine thermokarst plains and thermokarst plains with fluvial erosion under the synchronous start of thermokarst processes. Therefore, different techniques should be used for the quantitative assessment of the impact probability of the thermokarst processes on engineering structures for the lacustrine thermokarst plains and thermokarst plains with fluvial erosion. The mathematical model used in this study proved to be a good instrument for such assessment.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>эрозионно-термокарстовые равнины</kwd><kwd>математическая морфология ландшафта</kwd><kwd>термокарстовые озера</kwd><kwd>математическое моделирование</kwd><kwd>распределение площадей озер</kwd></kwd-group><kwd-group xml:lang="en"><kwd>thermokast plains with fluvial erosion</kwd><kwd>mathematical morphology of landscape</kwd><kwd>thermokarst lakes</kwd><kwd>mathematical modeling</kwd><kwd>lake area distribution</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при поддержке гранта РНФ № 18-17-00226 (создание моделей) и темы государственного задания (оценка опасности поражения инженерного сооружения).</funding-statement><funding-statement xml:lang="en">The study was done with the support of RSF grant No. 18-17-00226 (creation of models) and in terms of the state assignment regarding hazard assessment of an engineering structures.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Арэ Ф.Э., Балобаев В.Т., Босиков Н.П. Особенности переработки берегов термокарстовых озер Центральной Якутии // Озера криолитозоны Сибири. Новосибирск: Наука, 1974, С. 39–52.</mixed-citation><mixed-citation xml:lang="en">Are F.E., Balobaev V.T., and Bosikov N.P. Osobennosti pererabotki beregov termokarstovykh ozer Tsentral’noi Yakutii (Features of the processing of the shores of thermokarst lakes in Central Yakutia). Ozera kriolitozony Sibiri. Novosibirsk: Nauka (Publ.), 1974. P. 39–52. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Днепровская В.П., Брыксина Н.А., Полищук Ю.М. Изучение изменений термокарста в зоне прерывистого распространения вечной мерзлоты Западной Сибири на основе космических снимков // Исследование Земли из космоса. 2009. № 4. С. 88–96.</mixed-citation><mixed-citation xml:lang="en">Dneprovskaya V.P., Bryksina N.A., and Polishchuk Yu.M. Izuchenie izmenenii termokarsta v zone preryvistogo rasprostraneniya vechnoi merzloty Zapadnoi Sibiri na osnove kosmicheskikh snimkov (Study of thermokarst changes in the zone of intermittent distribution of permafrost in Western Siberia based on satellite images). Issledovanie Zemli iz kosmosa. 2009. No. 4. P. 88–96. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Кирпотин С.Н., Полищук Ю.М., Брыксина Н.А. Динамика площадей термокарстовых озер в сплошной и прерывистой криолитозонах Западной Сибири в условиях глобального потепления // Вестник ТГУ. 2008. № 311. С. 185–189.</mixed-citation><mixed-citation xml:lang="en">Kirpotin S.N., Polishchuk Yu.M., and Bryksina N.A. Dinamika ploshchadei termokarstovykh ozer v sploshnoi i preryvistoi kriolitozonakh Zapadnoi Sibiri v usloviyakh global’nogo potepleniya (Dynamics of areas of thermokarst lakes in continuous and intermittent cryolithozone of Western Siberia in the context of global warming). Vestnik TGU. 2008. No. 311. P. 185–189. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Полищук В.Ю., Полищук Ю.М. Геоимитационное моделирование полей термокарстовых озер в зонах мерзлоты. Ханты-Мансийск: УИП ЮГУ, 2013. 129 с.</mixed-citation><mixed-citation xml:lang="en">Polishchuk V.Yu. and Polishchuk Yu.M. Geoimitatsionnoe modelirovanie polei termokarstovykh ozer v zonakh merzloty. (Geo-simulation modeling of thermokarst lakes fields in permafrost zones). Khanty-Mansiysk: UIP YUGU (Publ.), 2013. 129 p. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Кравцова В.И., Тарасенко Т.В. Изучение и картографирование динамики термокарстовых озер на территории Западной Сибири по разновременным космическим снимкам // Восьмое сибирское совещание по климато-экологическому мониторингу. Материалы российской конференции 8–10 октября 2009. Томск: Аграф-Пресс, 2009. С. 273–275.</mixed-citation><mixed-citation xml:lang="en">Kravtsova V.I. and Tarasenko T.V. Geoimitatsionnoe modelirovanie polei termokarstovykh ozer v zonakh merzloty (Study and mapping of the dynamics of thermokarst lakes in Western Siberia using multi-temporal satellite images). Vos’moe sibirskoe soveshchanie po klimato-ekologicheskomu monitoringu. Materialy rossiyskoi konferentsii 8–10 oktyabrya 2009. Tomsk: AgrafPress (Publ.), 2009. P. 273–275. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Burn C.R. and Smith M. W. Development of Thermokarst Lakes During the Holocene at Sites Near Mayo, Yukon Territory // Permafrost and Periglacial Processes. 1990. Vol. 1. P. 161–176.</mixed-citation><mixed-citation xml:lang="en">Burn C.R. and Smith M.W. Development of Thermokarst Lakes During the Holocene at Sites Near Mayo, Yukon Territory. Permafrost and Periglacial Processes. 1990. Vol. 1. P. 161–176.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Smith L.C., Sheng Y., Macdonald G.M., and Hinzman L.D. Disappearing Arctic Lakes // Science. Vol. 308. No. 3. 2005. P. 14.</mixed-citation><mixed-citation xml:lang="en">Smith L.C., Sheng Y., Macdonald G.M., and Hinzman L.D. Disappearing Arctic Lakes. Science. 2005. Vol. 308. No. 3. P. 14.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Шур Ю.Л. Термокарст (к теплофизическим основам учения о закономерностях развития процесса). М.: Недра, 1977. 80 с.</mixed-citation><mixed-citation xml:lang="en">Shur Yu.L. Termokarst (k teplofizicheskim osnovam ucheniya o zakonomernostyakh razvitiya protsessa) (Thermokarst (to the thermophysical fundamentals of the theory of the development of the process)). M.: Nedra (Publ.), 1977. 80 p. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Викторов А.С. Математическая модель термокарстовых озерных равнин как одна из основ интерпретации материалов космических съемок // Исследование Земли из космоса. 1995. № 5. С. 42–50.</mixed-citation><mixed-citation xml:lang="en">Victorov A.S. Matematicheskaya model' termokarstovykh ozernykh ravnin kak odna iz osnov interpretatsii materialov kosmicheskikh s"emok (A mathematical model of thermokarst lake plains as one of the foundations for the interpretation of remote sensing data). Issledovanie Zemli iz kosmosa. 1995. No. 5. P. 42–50. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Викторов А.С., Капралова В.Н. Количественная оценка природных рисков на основе материалов космических съемок (на примере озерно-термокарстовых равнин) // Исследования Земли из космоса. 2013. № 4. С. 33–38</mixed-citation><mixed-citation xml:lang="en">Victorov A.S. and Kapralova V.N. Kolichestvennaya otsenka prirodnykh riskov na osnove materialov kosmicheskikh s"emok (na primere ozerno-termokarstovykh ravnin) (Quantitative assessment of natural risks based on remote sensing data (a case study of lacustrine thermokarst plains)). Issledovaniya Zemli iz kosmosa. 2013. No. 4. P. 33–38. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Grosse G., Jones B.M., Nitze I., Lindgren P.R., Walter Anthony K.M., and Romanovsky V.E. Massive thermokarst lake area loss in continuous ice-rich permafrost of the northern Seward Peninsula, Northwestern Alaska, 1949–2015 // XI International Conference 20–24 June 2016, Potsdam, Germany. Bibliothek Wissenschaftspark Albert Einstein, 2016. P. 703–705. https://doi.org/10.2312/GFZ.LIS.2016.001</mixed-citation><mixed-citation xml:lang="en">Grosse G., Jones B.M., Nitze I., Lindgren P.R., Walter Anthony K.M., and Romanovsky V.E. Massive thermokarst lake area loss in continuous ice-rich permafrost of the northern Seward Peninsula, Northwestern Alaska, 1949–2015. XI International Conference on Permafrost – Book of Abstracts, 20 – 24 June 2016, Potsdam, Germany. Bibliothek Wissenschaftspark Albert Einstein, 2016. P. 739–740. doi:10.2312/GFZ.LIS.2016.001</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Викторов А.С., Капралова В.Н., Орлов Т.В., Трапезникова О.Н., Архипова М.В., Березин П.В., Зверев А.В., Панченко Е.Н., Садков С.А. Анализ развития морфологической структуры озерно-термокарстовых равнин на основе математической модели // Геоморфология. 2015. № 3. С. 3–13.</mixed-citation><mixed-citation xml:lang="en">Victorov A.S., Kapralova V.N., Orlov T.V., Trapeznikova O.N., Arkhipova M.V., Berezin P.V., Zverev A.V., Panchenko E.N., and Sadkov S.A. Analiz razvitiya morfologicheskoi struktury ozerno-termokarstovykh ravnin na osnove matematicheskoi modeli (The Mathematical Model of Thermokarst Lakes Surface as One of the Bases of the Space Survey Interpretation). Geomorfologiya (Geomorphology RAS). 2015. No. 3. P. 3–13. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Polishchuk Yu.M. and Polishchuk V.Yu. Geo-simulation approach to modeling spatial objects and its application to creating thermokarst lake model using remote sensing data // BioClimLand. No. 1. P. 53–69.</mixed-citation><mixed-citation xml:lang="en">Polishchuk Yu.M. and Polishchuk V.Yu. Geo-simulation approach to modeling spatial objects and its application to creating thermokarst lake model using remote sensing data. BioClimLand. No. 1. P. 53–69.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Sejourne A., Costard F., Fedorov A., Gargani J., Skorve J., Masse M., and Mege D. Evolution of the banks of thermokarst lakes in Central Yakutiya (Central Siberia) due to retrogressive thaw slump activity controlled by insolation // Geomorphology. 2015. No. 241. P. 31–40.</mixed-citation><mixed-citation xml:lang="en">Sejourne A., Costard F., Fedorov A., Gargani J., Skorve J., Masse M., and Mege D. Evolution of the banks of thermokarst lakes in Central Yakutiya (Central Siberia) due to retrogressive thaw slump activity controlled by insolation. Geomorphology. 2015. No. 241. P. 31–40.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Bondurant A.C., Arp C., Jones B., and Engram M. Rates and mechanisms of expansion in thermokarst lakes with bedfast and floating ice regimes on the Arctic Coastal Plain of northern Alaska 2015 // XI International Conference on Permafrost – Book of Abstracts, 20–24 June 2016, Potsdam, Germany. Bibliothek Wissenschaftspark Albert Einstein, 2016. P. 703–705. https://doi.org/10.2312/GFZ.LIS.2016.001</mixed-citation><mixed-citation xml:lang="en">Bondurant A.C., Arp C., Jones B., and Engram M. Rates and mechanisms of expansion in thermokarst lakes with bedfast and floating ice regimes on the Arctic Coastal Plain of northern Alaska 2015. XI International Conference on Permafrost – Book of Abstracts, 20–24 June 2016, Potsdam, Germany. Bibliothek Wissenschaftspark Albert Einstein, 2016. P. 703–705. doi:10.2312/GFZ.LIS.2016.001</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Романовский Н.Н. Эрозионно-термокарстовые котловины на севере приморских низменностей Якутии и Новосибирских островах // Мерзлотные исследования. 1961. Вып. 1. С. 124–144.</mixed-citation><mixed-citation xml:lang="en">Romanovskii N.N. Erozionno-termokarstovye kotloviny na severe primorskikh nizmennostei Yakutii i Novosibirskikh ostrovakh (Erosion-thermokarst hollows in the north of the coastal lowlands of Yakutia and the Novosibirsk islands). Merzlotnye issledovaniya. 1961. Vyp. 1. P. 124–144. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Викторов А.С., Капралова В.Н., Орлов Т.В., Трапезникова О.Н., Архипова М.В., Березин П.В., Зверев А.В., Садков С.А., Панченко Е.Г. Математическая морфология ландшафтов криолитозоны. М.: РУДН, 2016. 232 с.</mixed-citation><mixed-citation xml:lang="en">Victorov A.S., Kapralova V.N., Orlov T.V., Trapeznikova O.N., Arkhipova M.V., Berezin P.V., Zverev A.V., Sadkov S.A., and Panchenko E.G. Matematicheskaya morfologiya landshaftov kriolitozony (Mathematical morphology of cryolithozone landscapes). M.: RUDN (Publ.), 2016. 232 p. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Victorov A.S. Mathematical Models of Thermokarst Erosion Plains // GIS and Spatial Analysis. Proceedings of IAMG 2005, Toronto, Canada. P. 62–67.</mixed-citation><mixed-citation xml:lang="en">Victorov A.S. Mathematical Models of Thermokarst Erosion Plains // GIS and Spatial Analysis. Proceedings of IAMG 2005, Toronto, Canada. P. 62–67.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Викторов А.С. Основные проблемы математической морфологии ландшафта. М.: Наука, 2006. 252 с.</mixed-citation><mixed-citation xml:lang="en">Victorov A.S. Osnovnye problemy matematicheskoi morfologii landshafta (The main problems of mathematical morphology of landscape). M.: Nauka (Publ.), 2006. 252 p. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Методическое руководство по инженерно-геологической съемке масштаба 1:200000 (1:100 000, 1:50 000). М: Недра, 1978. 391 с.</mixed-citation><mixed-citation xml:lang="en">Metodicheskoe rukovodstvo po inzhenerno-geologicheskoi s"emke masshtaba 1:200000 (1:100 000, 1:50 000) (Methodical guide for geotechnical survey of 1: 200 000 scale (1: 100 000, 1:50 000)). M.: Nedra (Publ.), 1978. 391 p. (in Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Крамер. Г. Математические методы статистики. М.: Мир, 1970. 648 с.</mixed-citation><mixed-citation xml:lang="en">Kramer. G. Matematicheskie metody statistiki (Mathematical methods of statistics). M.: Mir (Publ.), 1970. 648 p.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
