{"id":"https://openalex.org/A5057306366","orcid":"https://orcid.org/0000-0002-5098-1578","observed_orcids":["https://orcid.org/0000-0002-5098-1578"],"display_name":"\u00dclk\u00fc Say\u0131n","raw_author_names":["SAYIN, \u00dcLK\u00dc","Sayin, Ulku","Say\u0131n, \u00dclk\u00fc","U. Sayin","Ulku Akpinar Sayin","Ulku Sayin","\u00dc. Sayin","\u00dc. Say\u0131n","\u00dclk\u00fc Sayin","\u00dclk\u00fc Say\u0131n"],"full_name":"Ulku Akpinar Sayin","works_count":68,"cited_by_count":375,"summary_stats":{"2yr_mean_citedness":1.6666666666666667,"h_index":11,"i10_index":14},"ids":{"openalex":"https://openalex.org/A5057306366","orcid":"https://orcid.org/0000-0002-5098-1578","observed_orcids":["https://orcid.org/0000-0002-5098-1578"]},"affiliations":[{"institution":{"id":"https://openalex.org/I137996928","ror":"https://ror.org/045hgzm75","display_name":"Sel\u00e7uk University","country_code":"TR","type":"education","lineage":["https://openalex.org/I137996928"]},"years":[2025,2023,2022,2021,2020,2019,2018,2017,2016,2015,2014,2013,2012,2011,2010,2006]}],"last_known_institutions":[{"id":"https://openalex.org/I137996928","ror":"https://ror.org/045hgzm75","display_name":"Sel\u00e7uk University","country_code":"TR","type":"education","lineage":["https://openalex.org/I137996928"]}],"topics":[{"id":"https://openalex.org/T12468","display_name":"Radiation Effects and Dosimetry","count":26,"subfield":{"id":"https://openalex.org/subfields/1106","display_name":"Food Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12381","display_name":"Electron Spin Resonance Studies","count":25,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14047","display_name":"Marine and environmental studies","count":22,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10017","display_name":"Geology and Paleoclimatology Research","count":20,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10087","display_name":"Archaeology and ancient environmental studies","count":14,"subfield":{"id":"https://openalex.org/subfields/3302","display_name":"Archeology"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"topic_share":[{"id":"https://openalex.org/T12468","display_name":"Radiation Effects and Dosimetry","value":0.0002943,"subfield":{"id":"https://openalex.org/subfields/1106","display_name":"Food Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12381","display_name":"Electron Spin Resonance Studies","value":0.0001765,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13013","display_name":"Free Radicals and Antioxidants","value":8.31e-05,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14047","display_name":"Marine and environmental studies","value":7.98e-05,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10612","display_name":"Magnetism in coordination complexes","value":4.77e-05,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.9799723625183105},{"id":"187961010","wikidata":"https://www.wikidata.org/wiki/Q260463","display_name":"Electron paramagnetic resonance","score":0.951496958732605},{"id":"46141821","wikidata":"https://www.wikidata.org/wiki/Q209402","display_name":"Nuclear magnetic resonance","score":0.48553702235221863},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.39804649353027344},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.3791482746601105}],"counts_by_year":[{"year":2006,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":2,"oa_works_count":0,"cited_by_count":11},{"year":2013,"works_count":2,"oa_works_count":1,"cited_by_count":10},{"year":2014,"works_count":3,"oa_works_count":0,"cited_by_count":12},{"year":2015,"works_count":1,"oa_works_count":0,"cited_by_count":13},{"year":2016,"works_count":11,"oa_works_count":1,"cited_by_count":17},{"year":2017,"works_count":11,"oa_works_count":1,"cited_by_count":16},{"year":2018,"works_count":7,"oa_works_count":2,"cited_by_count":20},{"year":2019,"works_count":7,"oa_works_count":3,"cited_by_count":23},{"year":2020,"works_count":1,"oa_works_count":1,"cited_by_count":27},{"year":2021,"works_count":2,"oa_works_count":2,"cited_by_count":38},{"year":2022,"works_count":3,"oa_works_count":2,"cited_by_count":24},{"year":2023,"works_count":6,"oa_works_count":4,"cited_by_count":43},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":31},{"year":2025,"works_count":3,"oa_works_count":2,"cited_by_count":40},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":30}],"display_name_alternatives":["SAYIN, \u00dcLK\u00dc","Sayin, Ulku","Say\u0131n, \u00dclk\u00fc","U. Sayin","Ulku Akpinar Sayin","Ulku Sayin","\u00dc. Sayin","\u00dc. Say\u0131n","\u00dclk\u00fc Sayin","\u00dclk\u00fc Say\u0131n"],"block_key":"u akpinar sayin","works_api_url":"https://api.openalex.org/works?filter=author.id:A5057306366","awards_count":2,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5057306366","updated_date":"2026-11-13T15:08:24","created_date":"2016-06-24T00:00:00"}
