{"id":"https://openalex.org/A5083447683","orcid":"https://orcid.org/0000-0002-8889-7451","observed_orcids":["https://orcid.org/0000-0002-8889-7451"],"display_name":"Bachtiar Efendi","raw_author_names":["Bachtiar Efendi"],"full_name":"Bachtiar Efendi","works_count":15,"cited_by_count":11,"summary_stats":{"2yr_mean_citedness":0.3,"h_index":2,"i10_index":0},"ids":{"openalex":"https://openalex.org/A5083447683","orcid":"https://orcid.org/0000-0002-8889-7451","observed_orcids":["https://orcid.org/0000-0002-8889-7451"]},"affiliations":[{"institution":{"id":"https://openalex.org/I4210154162","ror":"https://ror.org/051t2jr69","display_name":"Universitas Pembangunan Panca Budi Medan","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210154162"]},"years":[2022]},{"institution":{"id":"https://openalex.org/I4405256614","ror":"https://ror.org/04bxscs93","display_name":"Politeknik Negeri Indramayu","country_code":"ID","type":"education","lineage":["https://openalex.org/I4405256614"]},"years":[2026,2025,2024,2022,2021]}],"last_known_institutions":[{"id":"https://openalex.org/I4405256614","ror":"https://ror.org/04bxscs93","display_name":"Politeknik Negeri Indramayu","country_code":"ID","type":"education","lineage":["https://openalex.org/I4405256614"]}],"topics":[{"id":"https://openalex.org/T14495","display_name":"Public Health and Nutrition","count":3,"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/T10343","display_name":"Hydrogels: synthesis, properties, applications","count":2,"subfield":{"id":"https://openalex.org/subfields/2502","display_name":"Biomaterials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10452","display_name":"Iron Metabolism and Disorders","count":2,"subfield":{"id":"https://openalex.org/subfields/2720","display_name":"Hematology"},"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/T10610","display_name":"Advanced Cellulose Research Studies","count":2,"subfield":{"id":"https://openalex.org/subfields/2502","display_name":"Biomaterials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10645","display_name":"Cardiac Arrest and Resuscitation","count":2,"subfield":{"id":"https://openalex.org/subfields/2711","display_name":"Emergency Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"topic_share":[{"id":"https://openalex.org/T13846","display_name":"Mangiferin and Mango Extracts","value":0.000183,"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/T14354","display_name":"Emergency Medicine Education and Research","value":2.28e-05,"subfield":{"id":"https://openalex.org/subfields/2711","display_name":"Emergency 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/T14408","display_name":"Coastal Management and Development","value":2.02e-05,"subfield":{"id":"https://openalex.org/subfields/2308","display_name":"Management, Monitoring, Policy and Law"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10610","display_name":"Advanced Cellulose Research Studies","value":1.39e-05,"subfield":{"id":"https://openalex.org/subfields/2502","display_name":"Biomaterials"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12790","display_name":"Nursing Diagnosis and Documentation","value":1.27e-05,"subfield":{"id":"https://openalex.org/subfields/2922","display_name":"Research and Theory"},"field":{"id":"https://openalex.org/fields/29","display_name":"Nursing"},"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":0.7010297179222107},{"id":"159110408","wikidata":"https://www.wikidata.org/wiki/Q121176","display_name":"Nursing","score":0.6954830884933472},{"id":"17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","score":0.6129999756813049},{"id":"144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","score":0.39183539152145386},{"id":"138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","score":0.03183865547180176}],"counts_by_year":[{"year":2021,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2022,"works_count":4,"oa_works_count":4,"cited_by_count":0},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2024,"works_count":3,"oa_works_count":3,"cited_by_count":1},{"year":2025,"works_count":5,"oa_works_count":5,"cited_by_count":2},{"year":2026,"works_count":2,"oa_works_count":2,"cited_by_count":5}],"display_name_alternatives":["Bachtiar Efendi"],"block_key":"b efendi","works_api_url":"https://api.openalex.org/works?filter=author.id:A5083447683","awards_count":0,"updated_date":"2026-11-07T12:08:38","created_date":"2022-11-09T00:00:00"}