{"id":"https://openalex.org/W4388760446","doi":"https://doi.org/10.3390/s23229252","title":"Unobstructive Heartbeat Monitoring of Sleeping Infants and Young Children Using Sheet-Type PVDF Sensors","display_name":"Unobstructive Heartbeat Monitoring of Sleeping Infants and Young Children Using Sheet-Type PVDF Sensors","publication_year":2023,"publication_date":"2023-11-17","ids":{"openalex":"https://openalex.org/W4388760446","doi":"https://doi.org/10.3390/s23229252","pmid":"https://pubmed.ncbi.nlm.nih.gov/38005638"},"language":"en","primary_location":{"id":"doi:10.3390/s23229252","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s23229252","pdf_url":"https://www.mdpi.com/1424-8220/23/22/9252/pdf?version=1700231806","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"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":"Sensors","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/1424-8220/23/22/9252/pdf?version=1700231806","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5006783681","display_name":"Daisuke Kumaki","orcid":null},"institutions":[{"id":"https://openalex.org/I112524849","display_name":"Yamagata University","ror":"https://ror.org/00xy44n04","country_code":"JP","type":"education","lineage":["https://openalex.org/I112524849"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Daisuke Kumaki","raw_affiliation_strings":["Research Center for Organic Electronics, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Research Center for Organic Electronics, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan","institution_ids":["https://openalex.org/I112524849"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074680969","display_name":"Yuko Motoshima","orcid":null},"institutions":[{"id":"https://openalex.org/I112524849","display_name":"Yamagata University","ror":"https://ror.org/00xy44n04","country_code":"JP","type":"education","lineage":["https://openalex.org/I112524849"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yuko Motoshima","raw_affiliation_strings":["Faculty of Education, Art and Science, Yamagata University, 1-4-12 Kojirakawa-machi, Yamagata City 990-8560, Yamagata, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Education, Art and Science, Yamagata University, 1-4-12 Kojirakawa-machi, Yamagata City 990-8560, Yamagata, Japan","institution_ids":["https://openalex.org/I112524849"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112768684","display_name":"Fujio Higuchi","orcid":null},"institutions":[{"id":"https://openalex.org/I112524849","display_name":"Yamagata University","ror":"https://ror.org/00xy44n04","country_code":"JP","type":"education","lineage":["https://openalex.org/I112524849"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Fujio Higuchi","raw_affiliation_strings":["Research Center for Organic Electronics, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Research Center for Organic Electronics, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan","institution_ids":["https://openalex.org/I112524849"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108418333","display_name":"Katsuhiro Sato","orcid":null},"institutions":[{"id":"https://openalex.org/I112524849","display_name":"Yamagata University","ror":"https://ror.org/00xy44n04","country_code":"JP","type":"education","lineage":["https://openalex.org/I112524849"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Katsuhiro Sato","raw_affiliation_strings":["Research Center for Organic Electronics, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Research Center for Organic Electronics, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan","institution_ids":["https://openalex.org/I112524849"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086103866","display_name":"Tomohito Sekine","orcid":"https://orcid.org/0000-0002-2821-1104"},"institutions":[{"id":"https://openalex.org/I112524849","display_name":"Yamagata University","ror":"https://ror.org/00xy44n04","country_code":"JP","type":"education","lineage":["https://openalex.org/I112524849"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tomohito Sekine","raw_affiliation_strings":["Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan","Research Center for Organic Electronics, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan","institution_ids":["https://openalex.org/I112524849"]},{"raw_affiliation_string":"Research Center for Organic Electronics, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan","institution_ids":["https://openalex.org/I112524849"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5044149992","display_name":"Shizuo Tokito","orcid":"https://orcid.org/0000-0001-8426-2742"},"institutions":[{"id":"https://openalex.org/I112524849","display_name":"Yamagata University","ror":"https://ror.org/00xy44n04","country_code":"JP","type":"education","lineage":["https://openalex.org/I112524849"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shizuo Tokito","raw_affiliation_strings":["Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan","Research Center for Organic Electronics, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan","institution_ids":["https://openalex.org/I112524849"]},{"raw_affiliation_string":"Research Center for Organic Electronics, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Yamagata, Japan","institution_ids":["https://openalex.org/I112524849"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5006783681"],"corresponding_institution_ids":["https://openalex.org/I112524849"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2673},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2673},"fwci":0.7286,"has_fulltext":true,"cited_by_count":9,"citation_normalized_percentile":{"value":0.64267972,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":98},"biblio":{"volume":"23","issue":"22","first_page":"9252","last_page":"9252"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11021","display_name":"ECG Monitoring and Analysis","score":0.9973000288009644,"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/T12419","display_name":"Phonocardiography and Auscultation Techniques","score":0.9936000108718872,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory 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/heartbeat","display_name":"Heartbeat","score":0.7584283351898193},{"id":"https://openalex.org/keywords/vital-signs","display_name":"Vital signs","score":0.6771746873855591},{"id":"https://openalex.org/keywords/sudden-infant-death-syndrome","display_name":"Sudden infant death syndrome","score":0.5309747457504272},{"id":"https://openalex.org/keywords/phonocardiogram","display_name":"Phonocardiogram","score":0.5191042423248291},{"id":"https://openalex.org/keywords/polyvinylidene-fluoride","display_name":"Polyvinylidene fluoride","score":0.4990420341491699},{"id":"https://openalex.org/keywords/audiology","display_name":"Audiology","score":0.46801578998565674},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.45505291223526},{"id":"https://openalex.org/keywords/abnormality","display_name":"Abnormality","score":0.41079437732696533},{"id":"https://openalex.org/keywords/pediatrics","display_name":"Pediatrics","score":0.3547776937484741},{"id":"https://openalex.org/keywords/cardiology","display_name":"Cardiology","score":0.30975624918937683},{"id":"https://openalex.org/keywords/anesthesia","display_name":"Anesthesia","score":0.2622125744819641},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.16704785823822021},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.15880268812179565}],"concepts":[{"id":"https://openalex.org/C13852961","wikidata":"https://www.wikidata.org/wiki/Q17021880","display_name":"Heartbeat","level":2,"score":0.7584283351898193},{"id":"https://openalex.org/C2776890885","wikidata":"https://www.wikidata.org/wiki/Q1067560","display_name":"Vital signs","level":2,"score":0.6771746873855591},{"id":"https://openalex.org/C2987955292","wikidata":"https://www.wikidata.org/wiki/Q161801","display_name":"Sudden infant death syndrome","level":2,"score":0.5309747457504272},{"id":"https://openalex.org/C159693508","wikidata":"https://www.wikidata.org/wiki/Q3301075","display_name":"Phonocardiogram","level":2,"score":0.5191042423248291},{"id":"https://openalex.org/C2776254723","wikidata":"https://www.wikidata.org/wiki/Q146393","display_name":"Polyvinylidene fluoride","level":3,"score":0.4990420341491699},{"id":"https://openalex.org/C548259974","wikidata":"https://www.wikidata.org/wiki/Q569965","display_name":"Audiology","level":1,"score":0.46801578998565674},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.45505291223526},{"id":"https://openalex.org/C50965678","wikidata":"https://www.wikidata.org/wiki/Q2724302","display_name":"Abnormality","level":2,"score":0.41079437732696533},{"id":"https://openalex.org/C187212893","wikidata":"https://www.wikidata.org/wiki/Q123028","display_name":"Pediatrics","level":1,"score":0.3547776937484741},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.30975624918937683},{"id":"https://openalex.org/C42219234","wikidata":"https://www.wikidata.org/wiki/Q131130","display_name":"Anesthesia","level":1,"score":0.2622125744819641},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.16704785823822021},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.15880268812179565},{"id":"https://openalex.org/C118552586","wikidata":"https://www.wikidata.org/wiki/Q7867","display_name":"Psychiatry","level":1,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C521977710","wikidata":"https://www.wikidata.org/wiki/Q81163","display_name":"Polymer","level":2,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D002648","descriptor_name":"Child","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D002648","descriptor_name":"Child","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D002648","descriptor_name":"Child","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D002675","descriptor_name":"Child, Preschool","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D002675","descriptor_name":"Child, Preschool","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D002675","descriptor_name":"Child, Preschool","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D005465","descriptor_name":"Fluorocarbon Polymers","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006339","descriptor_name":"Heart Rate","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006339","descriptor_name":"Heart Rate","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006339","descriptor_name":"Heart Rate","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007223","descriptor_name":"Infant","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007223","descriptor_name":"Infant","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D007223","descriptor_name":"Infant","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011145","descriptor_name":"Polyvinyls","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D011145","descriptor_name":"Polyvinyls","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D011145","descriptor_name":"Polyvinyls","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012119","descriptor_name":"Respiration","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012119","descriptor_name":"Respiration","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012119","descriptor_name":"Respiration","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012815","descriptor_name":"Signal Processing, Computer-Assisted","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012815","descriptor_name":"Signal Processing, Computer-Assisted","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012815","descriptor_name":"Signal Processing, Computer-Assisted","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012890","descriptor_name":"Sleep","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012890","descriptor_name":"Sleep","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012890","descriptor_name":"Sleep","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true}],"locations_count":5,"locations":[{"id":"doi:10.3390/s23229252","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s23229252","pdf_url":"https://www.mdpi.com/1424-8220/23/22/9252/pdf?version=1700231806","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"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":"Sensors","raw_type":"journal-article"},{"id":"pmid:38005638","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/38005638","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":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:pubmedcentral.nih.gov:10674719","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/10674719","pdf_url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC10674719/pdf/sensors-23-09252.pdf","source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"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":"Sensors (Basel)","raw_type":"Text"},{"id":"pmh:oai:doaj.org/article:e0f2abd334b74cf7a74e62c796db5e98","is_oa":true,"landing_page_url":"https://doaj.org/article/e0f2abd334b74cf7a74e62c796db5e98","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors, Vol 23, Iss 22, p 9252 (2023)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/23/22/9252/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s23229252","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":"Sensors","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s23229252","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s23229252","pdf_url":"https://www.mdpi.com/1424-8220/23/22/9252/pdf?version=1700231806","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"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":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/3","score":0.699999988079071,"display_name":"Good health and well-being"}],"awards":[{"id":"https://openalex.org/G663946902","display_name":"\u30d5\u30ed\u30f3\u30c6\u30a3\u30a2\u6709\u6a5f\u30b7\u30b9\u30c6\u30e0\u30a4\u30ce\u30d9\u30fc\u30b7\u30e7\u30f3\u62e0\u70b9","funder_award_id":"JPMJCE1312","funder_id":"https://openalex.org/F4320334789","funder_display_name":"Japan Science and Technology Agency"}],"funders":[{"id":"https://openalex.org/F4320334789","display_name":"Japan Science and Technology Agency","ror":"https://ror.org/00097mb19"}],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W4388760446.pdf"},"referenced_works_count":40,"referenced_works":["https://openalex.org/W1195902387","https://openalex.org/W1978824841","https://openalex.org/W1988170188","https://openalex.org/W1994302090","https://openalex.org/W1999020670","https://openalex.org/W2027795683","https://openalex.org/W2055757722","https://openalex.org/W2055973142","https://openalex.org/W2058684026","https://openalex.org/W2083278499","https://openalex.org/W2101399973","https://openalex.org/W2118875876","https://openalex.org/W2137619789","https://openalex.org/W2139284748","https://openalex.org/W2148325642","https://openalex.org/W2162437343","https://openalex.org/W2255281415","https://openalex.org/W2294639349","https://openalex.org/W2301763122","https://openalex.org/W2519059642","https://openalex.org/W2811152287","https://openalex.org/W2897425389","https://openalex.org/W2947545851","https://openalex.org/W2991140510","https://openalex.org/W2996299673","https://openalex.org/W3006201860","https://openalex.org/W3027532648","https://openalex.org/W3049358781","https://openalex.org/W3090694640","https://openalex.org/W3128412567","https://openalex.org/W3165191906","https://openalex.org/W3194375834","https://openalex.org/W4210480668","https://openalex.org/W4282551051","https://openalex.org/W4311664146","https://openalex.org/W4313334021","https://openalex.org/W4384133576","https://openalex.org/W4385986875","https://openalex.org/W6677514457","https://openalex.org/W6697341767"],"related_works":["https://openalex.org/W2612231299","https://openalex.org/W2392190959","https://openalex.org/W2387004671","https://openalex.org/W4385151264","https://openalex.org/W2066804906","https://openalex.org/W2184139745","https://openalex.org/W2163299290","https://openalex.org/W2801164705","https://openalex.org/W4311602935","https://openalex.org/W4226059311"],"abstract_inverted_index":{"Techniques":[0],"for":[1,28,172],"noninvasively":[2],"acquiring":[3],"the":[4,17,35,60,69,86,89,100,112,118,146,155,158,174],"vital":[5,43,122,148],"information":[6],"of":[7,19,37,72,88,141,163,176],"infants":[8,30,73,90,127,137,164],"and":[9,21,31,63,74,91,160,165],"young":[10,32,75,92,166],"children":[11,33,167],"are":[12,66],"considered":[13],"very":[14],"useful":[15],"in":[16,79,126,157],"fields":[18],"healthcare":[20],"medical":[22],"care.":[23],"An":[24],"unobstructive":[25,180],"measurement":[26],"method":[27],"sleeping":[29],"under":[34,138],"age":[36,142],"6":[38],"years":[39],"using":[40,129],"a":[41,46,130],"sheet-type":[42],"sensor":[44,132],"with":[45,111],"polyvinylidene":[47],"fluoride":[48],"(PVDF)":[49],"pressure-sensitive":[50],"layer":[51],"is":[52,170],"demonstrated.":[53],"The":[54,77,94,121],"signal":[55,80],"filter":[56],"conditions":[57,82],"to":[58],"obtain":[59],"ballistocardiogram":[61],"(BCG)":[62],"phonocardiogram":[64],"(PCG)":[65],"discussed":[67],"from":[68,99,117],"waveform":[70],"data":[71],"children.":[76,93],"difference":[78],"processing":[81],"was":[83],"caused":[84],"by":[85,179],"physique":[87],"peak-to-peak":[95],"interval":[96,114],"(PPI)":[97],"extracted":[98,116],"BCG":[101],"or":[102],"PCG":[103],"during":[104,150,168],"sleep":[105,169],"showed":[106],"an":[107],"extremely":[108],"high":[109],"correlation":[110],"R-to-R":[113],"(RRI)":[115],"electrocardiogram":[119],"(ECG).":[120],"changes":[123,149,156],"until":[124],"awakening":[125,151],"monitored":[128],"sheet":[131],"were":[133,152],"also":[134],"investigated.":[135],"In":[136],"one":[139],"year":[140],"that":[143],"awakened":[144],"spontaneously,":[145],"distinctive":[147],"observed.":[153],"Understanding":[154],"heartbeat":[159],"respiration":[161],"signs":[162],"essential":[171],"improving":[173],"accuracy":[175],"abnormality":[177],"detection":[178],"sensors.":[181]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":2}],"updated_date":"2026-07-22T07:51:19.307946","created_date":"2025-10-10T00:00:00"}