{"id":"https://openalex.org/A5113664640","orcid":null,"observed_orcids":[],"display_name":"K. Ruhnau","raw_author_names":["K J Ruhnau","K Ruhnau","K. J. Ruhnau","K. Ruhnau","K. \u2010J. Ruhnau","Klaus-J\u00fcrgen Ruhnau\u2020"],"full_name":"Klaus-J\u00fcrgen Ruhnau\u2020","works_count":10,"cited_by_count":1223,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":7,"i10_index":7},"ids":{"openalex":"https://openalex.org/A5113664640","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I4210119759","ror":"https://ror.org/02na8dn90","display_name":"Essen University Hospital","country_code":"DE","type":"funder","lineage":["https://openalex.org/I4210119759"]},"years":[1984]},{"institution":{"id":"https://openalex.org/I4210120892","ror":"https://ror.org/02s0rxx79","display_name":"Deutsche Diabetes Gesellschaft","country_code":"DE","type":"other","lineage":["https://openalex.org/I4210120892"]},"years":[2013]},{"institution":{"id":"https://openalex.org/I4210147495","ror":"https://ror.org/05h1ag309","display_name":"Marienhospital Gelsenkirchen","country_code":"DE","type":"healthcare","lineage":["https://openalex.org/I4210147495"]},"years":[1999]},{"institution":{"id":"https://openalex.org/I4210152419","ror":"https://ror.org/04ews3245","display_name":"Deutsches Diabetes-Zentrum e.V.","country_code":"DE","type":"facility","lineage":["https://openalex.org/I315704651","https://openalex.org/I4210152419","https://openalex.org/I44260953"]},"years":[1999]},{"institution":{"id":"https://openalex.org/I44260953","ror":"https://ror.org/024z2rq82","display_name":"Heinrich Heine University D\u00fcsseldorf","country_code":"DE","type":"education","lineage":["https://openalex.org/I44260953"]},"years":[1999]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10105","display_name":"Osteoarthritis Treatment and Mechanisms","count":3,"subfield":{"id":"https://openalex.org/subfields/2745","display_name":"Rheumatology"},"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/T10196","display_name":"Pain Mechanisms and Treatments","count":3,"subfield":{"id":"https://openalex.org/subfields/2737","display_name":"Physiology (medical)"},"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/T10442","display_name":"Knee injuries and reconstruction techniques","count":3,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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/T11570","display_name":"Periodontal Regeneration and Treatments","count":3,"subfield":{"id":"https://openalex.org/subfields/3506","display_name":"Periodontics"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12915","display_name":"Biochemical Acid Research Studies","count":3,"subfield":{"id":"https://openalex.org/subfields/1303","display_name":"Biochemistry"},"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/T12915","display_name":"Biochemical Acid Research Studies","value":7.01e-05,"subfield":{"id":"https://openalex.org/subfields/1303","display_name":"Biochemistry"},"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/T12533","display_name":"Aldose Reductase and Taurine","value":5.26e-05,"subfield":{"id":"https://openalex.org/subfields/1307","display_name":"Cell Biology"},"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/T12269","display_name":"Effects of Vibration on Health","value":2.98e-05,"subfield":{"id":"https://openalex.org/subfields/2732","display_name":"Orthopedics and Sports 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/T13044","display_name":"Biofield Effects and Biophysics","value":1.13e-05,"subfield":{"id":"https://openalex.org/subfields/2707","display_name":"Complementary and alternative 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/T10442","display_name":"Knee injuries and reconstruction techniques","value":1.12e-05,"subfield":{"id":"https://openalex.org/subfields/2746","display_name":"Surgery"},"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":0.9605326652526855},{"id":"29456083","wikidata":"https://www.wikidata.org/wiki/Q1221899","display_name":"Gynecology","score":0.7702701091766357},{"id":"141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","score":0.42203235626220703},{"id":"142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","score":0.14032670855522156},{"id":"204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","score":0.0}],"counts_by_year":[{"year":1983,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1984,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1999,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":1,"oa_works_count":0,"cited_by_count":55},{"year":2013,"works_count":2,"oa_works_count":0,"cited_by_count":53},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":58},{"year":2015,"works_count":1,"oa_works_count":0,"cited_by_count":27},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":43},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":40},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":39},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":31},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":53},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":56},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":32},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":27},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":27},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":32},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":29}],"display_name_alternatives":["K J Ruhnau","K Ruhnau","K. J. Ruhnau","K. Ruhnau","K. \u2010J. Ruhnau","Klaus-J\u00fcrgen Ruhnau\u2020"],"block_key":"k ruhnau","works_api_url":"https://api.openalex.org/works?filter=author.id:A5113664640","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}