{"id":"https://openalex.org/A5111546579","orcid":null,"observed_orcids":[],"display_name":"Dick Van der Helm","raw_author_names":["DICK VAN DER HELM","Dick Helm","Dick VAN DER Helm","Dick Van Der Helm","Dick Van der Helm","Dick van Der Helm","Dick van der Helm","Dick van\u2005der\u2005Helm","Dick. Van der Helm","Dick. van der Helm"],"full_name":"Dick Van der Helm","works_count":179,"cited_by_count":6324,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":40,"i10_index":118},"ids":{"openalex":"https://openalex.org/A5111546579","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I115475287","ror":"https://ror.org/01g9vbr38","display_name":"Oklahoma State University","country_code":"US","type":"education","lineage":["https://openalex.org/I115475287"]},"years":[1996,1982]},{"institution":{"id":"https://openalex.org/I1282311441","ror":"https://ror.org/041nk4h53","display_name":"Lawrence Livermore National Laboratory","country_code":"US","type":"facility","lineage":["https://openalex.org/I1282311441","https://openalex.org/I1330989302","https://openalex.org/I198811213","https://openalex.org/I4210138311"]},"years":[1998]},{"institution":{"id":"https://openalex.org/I130769515","ror":"https://ror.org/04p491231","display_name":"Pennsylvania State University","country_code":"US","type":"education","lineage":["https://openalex.org/I130769515"]},"years":[1996]},{"institution":{"id":"https://openalex.org/I133529467","ror":"https://ror.org/024c2fq17","display_name":"Sharif University of Technology","country_code":"IR","type":"education","lineage":["https://openalex.org/I133529467"]},"years":[1998]},{"institution":{"id":"https://openalex.org/I1336856363","ror":"https://ror.org/039zvsn29","display_name":"Natural History Museum","country_code":"GB","type":"archive","lineage":["https://openalex.org/I1336856363"]},"years":[1996]},{"institution":{"id":"https://openalex.org/I1344073410","ror":"https://ror.org/006w34k90","display_name":"Howard Hughes Medical Institute","country_code":"US","type":"facility","lineage":["https://openalex.org/I1344073410"]},"years":[1999]},{"institution":{"id":"https://openalex.org/I155093810","ror":"https://ror.org/03hbp5t65","display_name":"University of Idaho","country_code":"US","type":"education","lineage":["https://openalex.org/I155093810"]},"years":[1998,1996]},{"institution":{"id":"https://openalex.org/I183935753","ror":"https://ror.org/0220mzb33","display_name":"King's College London","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I183935753"]},"years":[1996]},{"institution":{"id":"https://openalex.org/I192454743","ror":"https://ror.org/058m7ey48","display_name":"Sandia National Laboratories California","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I192454743","https://openalex.org/I198811213","https://openalex.org/I4210104735"]},"years":[1998]},{"institution":{"id":"https://openalex.org/I204465549","ror":"https://ror.org/01yc7t268","display_name":"Washington University in St. Louis","country_code":"US","type":"education","lineage":["https://openalex.org/I204465549"]},"years":[1997]},{"institution":{"id":"https://openalex.org/I212119943","ror":"https://ror.org/04s5mat29","display_name":"University of Victoria","country_code":"CA","type":"education","lineage":["https://openalex.org/I212119943"]},"years":[2014,2002]},{"institution":{"id":"https://openalex.org/I44461941","ror":"https://ror.org/048sx0r50","display_name":"University of Houston","country_code":"US","type":"education","lineage":["https://openalex.org/I44461941"]},"years":[1998,1996]},{"institution":{"id":"https://openalex.org/I49332381","ror":"https://ror.org/0457zbj98","display_name":"University of Oklahoma Health Sciences Center","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I49332381"]},"years":[1996]},{"institution":{"id":"https://openalex.org/I63072094","ror":"https://ror.org/03ykbk197","display_name":"University of Portsmouth","country_code":"GB","type":"education","lineage":["https://openalex.org/I63072094"]},"years":[1996]},{"institution":{"id":"https://openalex.org/I79576946","ror":"https://ror.org/00b30xv10","display_name":"University of Pennsylvania","country_code":"US","type":"education","lineage":["https://openalex.org/I79576946"]},"years":[1997]},{"institution":{"id":"https://openalex.org/I867280407","ror":"https://ror.org/05byvp690","display_name":"The University of Texas Southwestern Medical Center","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I867280407"]},"years":[1999]},{"institution":{"id":"https://openalex.org/I8692664","ror":"https://ror.org/02aqsxs83","display_name":"University of Oklahoma","country_code":"US","type":"education","lineage":["https://openalex.org/I8692664"]},"years":[2014,2010,2006,2002,2001,1999,1998,1997,1996,1995,1994,1993,1992,1991,1990,1989,1988,1987,1986,1984,1983,1982,1981,1980,1979,1978,1977,1974,1973,1969]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10464","display_name":"Crystal structures of chemical compounds","count":67,"subfield":{"id":"https://openalex.org/subfields/1604","display_name":"Inorganic 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/T10252","display_name":"Microbial Natural Products and Biosynthesis","count":49,"subfield":{"id":"https://openalex.org/subfields/2736","display_name":"Pharmacology"},"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/T11340","display_name":"Marine Sponges and Natural Products","count":32,"subfield":{"id":"https://openalex.org/subfields/1305","display_name":"Biotechnology"},"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/T12748","display_name":"Molecular spectroscopy and chirality","count":29,"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/T12410","display_name":"Structural and Chemical Analysis of Organic and Inorganic Compounds","count":26,"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"}}],"topic_share":[{"id":"https://openalex.org/T11340","display_name":"Marine Sponges and Natural Products","value":0.0002372,"subfield":{"id":"https://openalex.org/subfields/1305","display_name":"Biotechnology"},"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/T13971","display_name":"Synthesis and Biological Activity","value":0.000228,"subfield":{"id":"https://openalex.org/subfields/1306","display_name":"Cancer Research"},"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/T12530","display_name":"Bioactive Natural Diterpenoids Research","value":0.0002212,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular 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/T12748","display_name":"Molecular spectroscopy and chirality","value":0.0001668,"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/T13239","display_name":"Phosphorus compounds and reactions","value":0.0001279,"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"}}],"x_concepts":[{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.9917469024658203},{"id":"8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","score":0.7493676543235779},{"id":"71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","score":0.7297321557998657},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.5616329908370972},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.49480074644088745}],"counts_by_year":[{"year":1962,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1968,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1969,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1970,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1971,"works_count":2,"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":4,"oa_works_count":0,"cited_by_count":0},{"year":1974,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1975,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1976,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":1977,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1978,"works_count":5,"oa_works_count":0,"cited_by_count":0},{"year":1979,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1980,"works_count":10,"oa_works_count":0,"cited_by_count":0},{"year":1981,"works_count":16,"oa_works_count":0,"cited_by_count":0},{"year":1982,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1983,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1984,"works_count":16,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1986,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":8,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":7,"oa_works_count":0,"cited_by_count":0},{"year":1994,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":10,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1998,"works_count":8,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2001,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":181},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":145},{"year":2014,"works_count":1,"oa_works_count":0,"cited_by_count":194},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":122},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":133},{"year":2017,"works_count":1,"oa_works_count":0,"cited_by_count":129},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":98},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":107},{"year":2020,"works_count":1,"oa_works_count":0,"cited_by_count":123},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":127},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":94},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":73},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":93},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":76},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":57}],"display_name_alternatives":["DICK VAN DER HELM","Dick Helm","Dick VAN DER Helm","Dick Van Der Helm","Dick Van der Helm","Dick van Der Helm","Dick van der Helm","Dick van\u2005der\u2005Helm","Dick. Van der Helm","Dick. van der Helm"],"block_key":"d helm","works_api_url":"https://api.openalex.org/works?filter=author.id:A5111546579","updated_date":"2026-11-03T12:34:24","created_date":"2016-06-24T00:00:00"}
