{"id":"https://openalex.org/A5111631819","orcid":null,"observed_orcids":[],"display_name":"Yukiko Nakajo","raw_author_names":["Nakajo Yukiko","Y. Nakajo","YUKIKO NAKAJO","Yukiko Nakajo"],"full_name":"Yukiko Nakajo","works_count":65,"cited_by_count":687,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":14,"i10_index":16},"ids":{"openalex":"https://openalex.org/A5111631819","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I112524849","ror":"https://ror.org/00xy44n04","display_name":"Yamagata University","country_code":"JP","type":"education","lineage":["https://openalex.org/I112524849"]},"years":[2008]},{"institution":{"id":"https://openalex.org/I201537933","ror":"https://ror.org/01dq60k83","display_name":"Tohoku University","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]},"years":[2008]},{"institution":{"id":"https://openalex.org/I4210118089","ror":"https://ror.org/01qw4g764","display_name":"Mitsui (Japan)","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210118089"]},"years":[2009]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T11156","display_name":"Reproductive Health and Technologies","count":62,"subfield":{"id":"https://openalex.org/subfields/2743","display_name":"Reproductive 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/T10364","display_name":"Reproductive Biology and Fertility","count":57,"subfield":{"id":"https://openalex.org/subfields/2743","display_name":"Reproductive 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/T11732","display_name":"Assisted Reproductive Technology and Twin Pregnancy","count":34,"subfield":{"id":"https://openalex.org/subfields/2735","display_name":"Pediatrics, Perinatology and Child Health"},"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/T10116","display_name":"Sperm and Testicular Function","count":15,"subfield":{"id":"https://openalex.org/subfields/2743","display_name":"Reproductive 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/T11505","display_name":"Reproductive biology and impacts on aquatic species","count":11,"subfield":{"id":"https://openalex.org/subfields/1314","display_name":"Physiology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11732","display_name":"Assisted Reproductive Technology and Twin Pregnancy","value":0.0002359,"subfield":{"id":"https://openalex.org/subfields/2735","display_name":"Pediatrics, Perinatology and Child Health"},"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/T11156","display_name":"Reproductive Health and Technologies","value":0.0002283,"subfield":{"id":"https://openalex.org/subfields/2743","display_name":"Reproductive 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/T10364","display_name":"Reproductive Biology and Fertility","value":0.0001269,"subfield":{"id":"https://openalex.org/subfields/2743","display_name":"Reproductive 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/T11505","display_name":"Reproductive biology and impacts on aquatic species","value":4.44e-05,"subfield":{"id":"https://openalex.org/subfields/1314","display_name":"Physiology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10116","display_name":"Sperm and Testicular Function","value":3.77e-05,"subfield":{"id":"https://openalex.org/subfields/2743","display_name":"Reproductive Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.8197303414344788},{"id":"16685009","wikidata":"https://www.wikidata.org/wiki/Q335057","display_name":"Andrology","score":0.8035266399383545},{"id":"196843134","wikidata":"https://www.wikidata.org/wiki/Q33196","display_name":"Embryo","score":0.7376775741577148},{"id":"86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","score":0.5238425731658936},{"id":"54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","score":0.24345707893371582}],"counts_by_year":[{"year":2002,"works_count":6,"oa_works_count":6,"cited_by_count":0},{"year":2003,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":2004,"works_count":7,"oa_works_count":7,"cited_by_count":0},{"year":2005,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":2006,"works_count":5,"oa_works_count":5,"cited_by_count":0},{"year":2007,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":4,"oa_works_count":3,"cited_by_count":0},{"year":2009,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":2010,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":2011,"works_count":4,"oa_works_count":3,"cited_by_count":0},{"year":2012,"works_count":2,"oa_works_count":0,"cited_by_count":40},{"year":2013,"works_count":5,"oa_works_count":5,"cited_by_count":33},{"year":2014,"works_count":3,"oa_works_count":3,"cited_by_count":30},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":32},{"year":2016,"works_count":3,"oa_works_count":1,"cited_by_count":23},{"year":2017,"works_count":3,"oa_works_count":3,"cited_by_count":22},{"year":2018,"works_count":2,"oa_works_count":2,"cited_by_count":28},{"year":2019,"works_count":1,"oa_works_count":1,"cited_by_count":30},{"year":2020,"works_count":2,"oa_works_count":2,"cited_by_count":41},{"year":2021,"works_count":3,"oa_works_count":3,"cited_by_count":59},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":48},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":41},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":37},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":35},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":17}],"display_name_alternatives":["Nakajo Yukiko","Y. Nakajo","YUKIKO NAKAJO","Yukiko Nakajo"],"block_key":"y nakajo","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111631819","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5111631819","updated_date":"2026-11-12T13:17:38","created_date":"2016-06-24T00:00:00"}
