{"id":"https://openalex.org/A5113580635","orcid":"https://orcid.org/0000-0001-5969-2900","observed_orcids":["https://orcid.org/0000-0001-5969-2900"],"display_name":"Y. Hama","raw_author_names":["Hama, Y","Hama, Y.","Y Hama","Y. HAMA","Y. Hama"],"full_name":"Yoko Hama","works_count":91,"cited_by_count":1948,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":22,"i10_index":36},"ids":{"openalex":"https://openalex.org/A5113580635","orcid":"https://orcid.org/0000-0001-5969-2900","observed_orcids":["https://orcid.org/0000-0001-5969-2900"]},"affiliations":[{"institution":{"id":"https://openalex.org/I107428990","ror":"https://ror.org/05vh67662","display_name":"Instituto Tecnol\u00f3gico de Aeron\u00e1utica","country_code":"BR","type":"education","lineage":["https://openalex.org/I107428990"]},"years":[2006]},{"institution":{"id":"https://openalex.org/I160013858","ror":"https://ror.org/005ta0471","display_name":"Istituto Nazionale di Fisica Nucleare","country_code":"IT","type":"government","lineage":["https://openalex.org/I160013858"]},"years":[1979]},{"institution":{"id":"https://openalex.org/I17974374","ror":"https://ror.org/036rp1748","display_name":"Universidade de S\u00e3o Paulo","country_code":"BR","type":"education","lineage":["https://openalex.org/I17974374"]},"years":[2013,2012,2011,2010,2009,2008,2007,2006,2005,2004,2003,2002,2001,1999,1998,1997,1996,1988,1984,1983,1982,1979,1978,1973,1971,1970,1963,1962,1961]},{"institution":{"id":"https://openalex.org/I181391015","ror":"https://ror.org/04wffgt70","display_name":"Universidade Estadual de Campinas (UNICAMP)","country_code":"BR","type":"education","lineage":["https://openalex.org/I181391015"]},"years":[2009]},{"institution":{"id":"https://openalex.org/I4210099850","ror":"https://ror.org/01vj6ck58","display_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Torino","country_code":"IT","type":"facility","lineage":["https://openalex.org/I160013858","https://openalex.org/I4210099850"]},"years":[1980,1979]},{"institution":{"id":"https://openalex.org/I55143463","ror":"https://ror.org/048tbm396","display_name":"University of Turin","country_code":"IT","type":"education","lineage":["https://openalex.org/I55143463"]},"years":[1980,1979,1972]},{"institution":{"id":"https://openalex.org/I879563668","ror":"https://ror.org/00987cb86","display_name":"Universidade Estadual Paulista (Unesp)","country_code":"BR","type":"education","lineage":["https://openalex.org/I879563668"]},"years":[2006]}],"last_known_institutions":[{"id":"https://openalex.org/I17974374","ror":"https://ror.org/036rp1748","display_name":"Universidade de S\u00e3o Paulo","country_code":"BR","type":"education","lineage":["https://openalex.org/I17974374"]}],"topics":[{"id":"https://openalex.org/T10527","display_name":"High-Energy Particle Collisions Research","count":77,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10224","display_name":"Quantum Chromodynamics and Particle Interactions","count":74,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10093","display_name":"Nuclear physics research studies","count":48,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10048","display_name":"Particle physics theoretical and experimental studies","count":46,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11012","display_name":"Gas Dynamics and Kinetic Theory","count":3,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T10527","display_name":"High-Energy Particle Collisions Research","value":0.0002008,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10224","display_name":"Quantum Chromodynamics and Particle Interactions","value":9.59e-05,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10093","display_name":"Nuclear physics research studies","value":7.69e-05,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10048","display_name":"Particle physics theoretical and experimental studies","value":4.89e-05,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13209","display_name":"Cold Fusion and Nuclear Reactions","value":3.76e-05,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.9850000143051147},{"id":"185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","score":0.6906603574752808},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.5495216250419617},{"id":"33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","score":0.4202796220779419},{"id":"62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","score":0.38353240489959717}],"counts_by_year":[{"year":1961,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1962,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1963,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1970,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1971,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1972,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1973,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1978,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1979,"works_count":4,"oa_works_count":1,"cited_by_count":0},{"year":1980,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1982,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1983,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1984,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1990,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1998,"works_count":5,"oa_works_count":1,"cited_by_count":0},{"year":1999,"works_count":5,"oa_works_count":4,"cited_by_count":0},{"year":2001,"works_count":8,"oa_works_count":6,"cited_by_count":0},{"year":2002,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":2003,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":2004,"works_count":9,"oa_works_count":9,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":6,"oa_works_count":6,"cited_by_count":0},{"year":2007,"works_count":6,"oa_works_count":4,"cited_by_count":0},{"year":2008,"works_count":4,"oa_works_count":4,"cited_by_count":0},{"year":2009,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2010,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":2011,"works_count":4,"oa_works_count":4,"cited_by_count":0},{"year":2012,"works_count":1,"oa_works_count":1,"cited_by_count":141},{"year":2013,"works_count":2,"oa_works_count":0,"cited_by_count":134},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":112},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":58},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":63},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":61},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":49},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":40},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":70},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":46},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":30},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":55},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":26},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":44},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":28}],"display_name_alternatives":["Hama, Y","Hama, Y.","Y Hama","Y. HAMA","Y. Hama"],"block_key":"y hama","works_api_url":"https://api.openalex.org/works?filter=author.id:A5113580635","awards_count":3,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5113580635","updated_date":"2026-11-10T14:30:39","created_date":"2016-06-24T00:00:00"}