{"id":"https://openalex.org/W3117316669","doi":"https://doi.org/10.3390/e22121439","title":"Bivariate Entropy Analysis of Electrocardiographic RR\u2013QT Time Series","display_name":"Bivariate Entropy Analysis of Electrocardiographic RR\u2013QT Time Series","publication_year":2020,"publication_date":"2020-12-20","ids":{"openalex":"https://openalex.org/W3117316669","doi":"https://doi.org/10.3390/e22121439","mag":"3117316669","pmid":"https://pubmed.ncbi.nlm.nih.gov/33419293"},"language":"en","primary_location":{"id":"doi:10.3390/e22121439","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e22121439","pdf_url":"https://www.mdpi.com/1099-4300/22/12/1439/pdf?version=1608774310","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1099-4300/22/12/1439/pdf?version=1608774310","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101452715","display_name":"Bo Shi","orcid":"https://orcid.org/0000-0003-0445-0095"},"institutions":[{"id":"https://openalex.org/I169351748","display_name":"Bengbu Medical College","ror":"https://ror.org/01f8qvj05","country_code":"CN","type":"education","lineage":["https://openalex.org/I169351748"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Bo Shi","raw_affiliation_strings":["School of Medical Imaging, Bengbu Medical College, Bengbu 233030, China"],"affiliations":[{"raw_affiliation_string":"School of Medical Imaging, Bengbu Medical College, Bengbu 233030, China","institution_ids":["https://openalex.org/I169351748"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084766876","display_name":"Mohammod Abdul Motin","orcid":"https://orcid.org/0000-0003-1618-3772"},"institutions":[{"id":"https://openalex.org/I165779595","display_name":"The University of Melbourne","ror":"https://ror.org/01ej9dk98","country_code":"AU","type":"education","lineage":["https://openalex.org/I165779595"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Mohammod Abdul Motin","raw_affiliation_strings":["Department of Electrical and Electronic Engineering, University of Melbourne, Melbourne, VIC 3110, Australia"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronic Engineering, University of Melbourne, Melbourne, VIC 3110, Australia","institution_ids":["https://openalex.org/I165779595"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086484316","display_name":"Xinpei Wang","orcid":"https://orcid.org/0000-0003-2981-7957"},"institutions":[{"id":"https://openalex.org/I154099455","display_name":"Shandong University","ror":"https://ror.org/0207yh398","country_code":"CN","type":"education","lineage":["https://openalex.org/I154099455"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xinpei Wang","raw_affiliation_strings":["School of Control Science and Engineering, Shandong University, Jinan 250061, China"],"affiliations":[{"raw_affiliation_string":"School of Control Science and Engineering, Shandong University, Jinan 250061, China","institution_ids":["https://openalex.org/I154099455"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001203013","display_name":"Chandan Karmakar","orcid":"https://orcid.org/0000-0003-1814-0856"},"institutions":[{"id":"https://openalex.org/I149704539","display_name":"Deakin University","ror":"https://ror.org/02czsnj07","country_code":"AU","type":"education","lineage":["https://openalex.org/I149704539"]}],"countries":["AU"],"is_corresponding":true,"raw_author_name":"Chandan Karmakar","raw_affiliation_strings":["School of Information Technology, Deakin University, Geelong, VIC 3225, Australia"],"affiliations":[{"raw_affiliation_string":"School of Information Technology, Deakin University, Geelong, VIC 3225, Australia","institution_ids":["https://openalex.org/I149704539"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100457855","display_name":"Peng Li","orcid":"https://orcid.org/0000-0002-4684-4909"},"institutions":[{"id":"https://openalex.org/I1283280774","display_name":"Brigham and Women's Hospital","ror":"https://ror.org/04b6nzv94","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1283280774","https://openalex.org/I48633490"]},{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]},{"id":"https://openalex.org/I4210138174","display_name":"Circadian (United States)","ror":"https://ror.org/03rqvr941","country_code":"US","type":"company","lineage":["https://openalex.org/I4210138174"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Peng Li","raw_affiliation_strings":["Division of Sleep and Circadian Disorders, Brigham and Women\u2019s Hospital, Harvard Medical School, Boston, MA 02115, USA","Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA"],"affiliations":[{"raw_affiliation_string":"Division of Sleep and Circadian Disorders, Brigham and Women\u2019s Hospital, Harvard Medical School, Boston, MA 02115, USA","institution_ids":["https://openalex.org/I1283280774","https://openalex.org/I136199984"]},{"raw_affiliation_string":"Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA","institution_ids":["https://openalex.org/I1283280774","https://openalex.org/I136199984","https://openalex.org/I4210138174"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5001203013","https://openalex.org/A5100457855"],"corresponding_institution_ids":["https://openalex.org/I1283280774","https://openalex.org/I136199984","https://openalex.org/I149704539","https://openalex.org/I4210138174"],"apc_list":{"value":2000,"currency":"CHF","value_usd":2165},"apc_paid":{"value":2000,"currency":"CHF","value_usd":2165},"fwci":0.2996,"has_fulltext":true,"cited_by_count":5,"citation_normalized_percentile":{"value":0.63971452,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"22","issue":"12","first_page":"1439","last_page":"1439"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10745","display_name":"Heart Rate Variability and Autonomic Control","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10745","display_name":"Heart Rate Variability and Autonomic Control","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10217","display_name":"Cardiac electrophysiology and arrhythmias","score":0.9894000291824341,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11021","display_name":"ECG Monitoring and Analysis","score":0.9864000082015991,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/heart-rate-variability","display_name":"Heart rate variability","score":0.7925621271133423},{"id":"https://openalex.org/keywords/sample-entropy","display_name":"Sample entropy","score":0.651409387588501},{"id":"https://openalex.org/keywords/bivariate-analysis","display_name":"Bivariate analysis","score":0.651191771030426},{"id":"https://openalex.org/keywords/repolarization","display_name":"Repolarization","score":0.642883837223053},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.6049893498420715},{"id":"https://openalex.org/keywords/conditional-entropy","display_name":"Conditional entropy","score":0.5110977292060852},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.44416895508766174},{"id":"https://openalex.org/keywords/qt-interval","display_name":"QT interval","score":0.4386938512325287},{"id":"https://openalex.org/keywords/entropy","display_name":"Entropy (arrow of time)","score":0.4147787094116211},{"id":"https://openalex.org/keywords/internal-medicine","display_name":"Internal medicine","score":0.3947164714336395},{"id":"https://openalex.org/keywords/cardiology","display_name":"Cardiology","score":0.3240968883037567},{"id":"https://openalex.org/keywords/heart-rate","display_name":"Heart rate","score":0.2561447024345398},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.21117523312568665},{"id":"https://openalex.org/keywords/time-series","display_name":"Time series","score":0.18954044580459595},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.1478082537651062},{"id":"https://openalex.org/keywords/principle-of-maximum-entropy","display_name":"Principle of maximum entropy","score":0.13020062446594238},{"id":"https://openalex.org/keywords/blood-pressure","display_name":"Blood pressure","score":0.1063162088394165},{"id":"https://openalex.org/keywords/thermodynamics","display_name":"Thermodynamics","score":0.10240831971168518}],"concepts":[{"id":"https://openalex.org/C71635504","wikidata":"https://www.wikidata.org/wiki/Q933954","display_name":"Heart rate variability","level":4,"score":0.7925621271133423},{"id":"https://openalex.org/C66696666","wikidata":"https://www.wikidata.org/wiki/Q17105612","display_name":"Sample entropy","level":3,"score":0.651409387588501},{"id":"https://openalex.org/C64341305","wikidata":"https://www.wikidata.org/wiki/Q4919225","display_name":"Bivariate analysis","level":2,"score":0.651191771030426},{"id":"https://openalex.org/C146403970","wikidata":"https://www.wikidata.org/wiki/Q205729","display_name":"Repolarization","level":3,"score":0.642883837223053},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6049893498420715},{"id":"https://openalex.org/C101721835","wikidata":"https://www.wikidata.org/wiki/Q813908","display_name":"Conditional entropy","level":3,"score":0.5110977292060852},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.44416895508766174},{"id":"https://openalex.org/C118441451","wikidata":"https://www.wikidata.org/wiki/Q12074763","display_name":"QT interval","level":2,"score":0.4386938512325287},{"id":"https://openalex.org/C106301342","wikidata":"https://www.wikidata.org/wiki/Q4117933","display_name":"Entropy (arrow of time)","level":2,"score":0.4147787094116211},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.3947164714336395},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.3240968883037567},{"id":"https://openalex.org/C2777953023","wikidata":"https://www.wikidata.org/wiki/Q1073121","display_name":"Heart rate","level":3,"score":0.2561447024345398},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.21117523312568665},{"id":"https://openalex.org/C151406439","wikidata":"https://www.wikidata.org/wiki/Q186588","display_name":"Time series","level":2,"score":0.18954044580459595},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1478082537651062},{"id":"https://openalex.org/C9679016","wikidata":"https://www.wikidata.org/wiki/Q1417473","display_name":"Principle of maximum entropy","level":2,"score":0.13020062446594238},{"id":"https://openalex.org/C84393581","wikidata":"https://www.wikidata.org/wiki/Q82642","display_name":"Blood pressure","level":2,"score":0.1063162088394165},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.10240831971168518},{"id":"https://openalex.org/C185263204","wikidata":"https://www.wikidata.org/wiki/Q1154774","display_name":"Electrophysiology","level":2,"score":0.0}],"mesh":[],"locations_count":7,"locations":[{"id":"doi:10.3390/e22121439","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e22121439","pdf_url":"https://www.mdpi.com/1099-4300/22/12/1439/pdf?version=1608774310","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy","raw_type":"journal-article"},{"id":"pmid:33419293","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/33419293","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:76fdb2bc2f8a4516a44cbb06a872f3b0","is_oa":true,"landing_page_url":"https://doaj.org/article/76fdb2bc2f8a4516a44cbb06a872f3b0","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Entropy, Vol 22, Iss 12, p 1439 (2020)","raw_type":"article"},{"id":"pmh:oai:dro.deakin.edu.au:DU:30146876","is_oa":false,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4306401102","display_name":"Own your potential (DEAKIN)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I149704539","host_organization_name":"Deakin University","host_organization_lineage":["https://openalex.org/I149704539"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Journal Article"},{"id":"pmh:oai:figshare.com:article/20680699","is_oa":true,"landing_page_url":"https://figshare.com/articles/journal_contribution/Bivariate_entropy_analysis_of_electrocardiographic_rr_qt_time_series/20680699","pdf_url":null,"source":{"id":"https://openalex.org/S4377196282","display_name":"Figshare","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210132348","host_organization_name":"Figshare (United Kingdom)","host_organization_lineage":["https://openalex.org/I4210132348"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"},{"id":"pmh:oai:mdpi.com:/1099-4300/22/12/1439/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/e22121439","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Entropy; Volume 22; Issue 12; Pages: 1439","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:7766536","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7766536","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Entropy (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/e22121439","is_oa":true,"landing_page_url":"https://doi.org/10.3390/e22121439","pdf_url":"https://www.mdpi.com/1099-4300/22/12/1439/pdf?version=1608774310","source":{"id":"https://openalex.org/S195231649","display_name":"Entropy","issn_l":"1099-4300","issn":["1099-4300"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Entropy","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Good health and well-being","score":0.5799999833106995,"id":"https://metadata.un.org/sdg/3"}],"awards":[{"id":"https://openalex.org/G2087396116","display_name":null,"funder_award_id":"China","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3317480652","display_name":null,"funder_award_id":"Science","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3627103173","display_name":null,"funder_award_id":"61601263","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G391238517","display_name":null,"funder_award_id":", and","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5994120800","display_name":null,"funder_award_id":"Natural","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G662518627","display_name":null,"funder_award_id":"BYKC201905","funder_id":"https://openalex.org/F4320324774","funder_display_name":"Bengbu Medical College"},{"id":"https://openalex.org/G7060444079","display_name":null,"funder_award_id":"31600862","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7608752429","display_name":null,"funder_award_id":"Talent","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320324774","display_name":"Bengbu Medical College","ror":"https://ror.org/01f8qvj05"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3117316669.pdf","grobid_xml":"https://content.openalex.org/works/W3117316669.grobid-xml"},"referenced_works_count":33,"referenced_works":["https://openalex.org/W1513638558","https://openalex.org/W1540743515","https://openalex.org/W1541478257","https://openalex.org/W1862394037","https://openalex.org/W1967947759","https://openalex.org/W2003228697","https://openalex.org/W2006803905","https://openalex.org/W2019198092","https://openalex.org/W2019292983","https://openalex.org/W2021080383","https://openalex.org/W2026992277","https://openalex.org/W2055489520","https://openalex.org/W2060642847","https://openalex.org/W2066147696","https://openalex.org/W2067149824","https://openalex.org/W2107289664","https://openalex.org/W2109741389","https://openalex.org/W2132333355","https://openalex.org/W2136429434","https://openalex.org/W2140338859","https://openalex.org/W2142771398","https://openalex.org/W2147588638","https://openalex.org/W2158379031","https://openalex.org/W2168642109","https://openalex.org/W2256815008","https://openalex.org/W2314140765","https://openalex.org/W2344992449","https://openalex.org/W2537260959","https://openalex.org/W2765571681","https://openalex.org/W2800270162","https://openalex.org/W2939160235","https://openalex.org/W3035170475","https://openalex.org/W7066285046"],"related_works":["https://openalex.org/W2314914269","https://openalex.org/W2006708776","https://openalex.org/W3082889039","https://openalex.org/W1976653534","https://openalex.org/W2142558988","https://openalex.org/W2062266966","https://openalex.org/W2318442968","https://openalex.org/W3047088213","https://openalex.org/W2765571681","https://openalex.org/W2007805422"],"abstract_inverted_index":{"QT":[0],"interval":[1],"variability":[2,7],"(QTV)":[3],"and":[4,23,63,73,99,113,151,194,196],"heart":[5],"rate":[6],"(HRV)":[8],"are":[9],"both":[10],"accepted":[11],"biomarkers":[12],"for":[13],"cardiovascular":[14],"events.":[15],"QTV":[16,33,46,62,193],"characterizes":[17],"the":[18,58,131,145,154,170,174,179,198],"variations":[19],"in":[20,110,169],"ventricular":[21],"depolarization":[22],"repolarization.":[24],"It":[25,160],"is":[26,34,51,187],"a":[27,138],"predominant":[28],"element":[29],"of":[30,61],"HRV.":[31],"However,":[32],"also":[35,136],"believed":[36],"to":[37,53,71,74,81,144,153,162,166],"accept":[38],"direct":[39],"inputs":[40],"from":[41,69,142],"upstream":[42],"control":[43],"system.":[44],"How":[45],"varies":[47],"along":[48],"with":[49,128],"HRV":[50,64],"yet":[52],"be":[54,163],"elucidated.":[55],"We":[56,76],"studied":[57],"dynamic":[59],"relationship":[60,191],"during":[65,124,130,149,158,173,178],"different":[66,116],"physiological":[67,117],"conditions":[68],"resting,":[70],"cycling,":[72],"recovering.":[75,159],"applied":[77],"several":[78],"entropy-based":[79],"measures":[80],"examine":[82],"their":[83],"bivariate":[84],"relationships,":[85],"including":[86],"cross":[87,91,95],"sample":[88],"entropy":[89,93,97,102],"(XSampEn),":[90],"fuzzy":[92],"(XFuzzyEn),":[94],"conditional":[96],"(XCE),":[98],"joint":[100],"distribution":[101],"(JDistEn).":[103],"Results":[104],"showed":[105,137],"no":[106],"statistically":[107],"significant":[108,122],"differences":[109],"XSampEn,":[111],"XFuzzyEn,":[112],"XCE":[114],"across":[115],"states.":[118],"Interestingly,":[119],"JDistEn":[120,135,199],"demonstrated":[121],"decreases":[123],"cycling":[125,143],"as":[126],"compared":[127],"that":[129,185,197],"resting":[132,171],"state.":[133],"Besides,":[134],"progressively":[139],"recovering":[140,180],"trend":[141],"first":[146],"3":[147,156,176],"min":[148,157,177],"recovering,":[150],"further":[152],"second":[155,175],"appeared":[161],"fully":[164],"recovered":[165],"its":[167],"level":[168],"state":[172],"phase.":[181],"The":[182],"results":[183],"suggest":[184],"there":[186],"certain":[188],"nonlinear":[189],"temporal":[190],"between":[192],"HRV,":[195],"could":[200],"help":[201],"unravel":[202],"this":[203],"nuanced":[204],"property.":[205]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1}],"updated_date":"2026-04-13T07:58:08.660418","created_date":"2025-10-10T00:00:00"}