{"id":"https://openalex.org/A5010600288","orcid":"https://orcid.org/0000-0002-3339-7126","observed_orcids":["https://orcid.org/0000-0002-3339-7126"],"display_name":"Tetty Natalia Sipayung","raw_author_names":["Sipayung, Tetty","Sipayung, Tetty Natalia","T N Sipayung","Tetty Natalia Sipayung"],"full_name":"Tetty Natalia Sipayung","works_count":44,"cited_by_count":248,"summary_stats":{"2yr_mean_citedness":0.5,"h_index":8,"i10_index":3},"ids":{"openalex":"https://openalex.org/A5010600288","orcid":"https://orcid.org/0000-0002-3339-7126","observed_orcids":["https://orcid.org/0000-0002-3339-7126"]},"affiliations":[{"institution":{"id":"https://openalex.org/I254887060","ror":"https://ror.org/01kknrc90","display_name":"Universitas Sumatera Utara","country_code":"ID","type":"education","lineage":["https://openalex.org/I254887060"]},"years":[2022]},{"institution":{"id":"https://openalex.org/I4210102140","ror":"https://ror.org/01bwbjs64","display_name":"Universitas Katolik Santo Thomas","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210102140"]},"years":[2025,2024,2023,2022,2021,2020,2019,2018,2017]}],"last_known_institutions":[{"id":"https://openalex.org/I4210102140","ror":"https://ror.org/01bwbjs64","display_name":"Universitas Katolik Santo Thomas","country_code":"ID","type":"education","lineage":["https://openalex.org/I4210102140"]}],"topics":[{"id":"https://openalex.org/T12522","display_name":"Mathematics Education and Pedagogy","count":39,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10130","display_name":"Mathematics Education and Teaching Techniques","count":13,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12590","display_name":"STEM Education","count":12,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10636","display_name":"Innovative Teaching and Learning Methods","count":9,"subfield":{"id":"https://openalex.org/subfields/3204","display_name":"Developmental and Educational Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11101","display_name":"Online Learning Methods and Innovations","count":8,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"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/T11101","display_name":"Online Learning Methods and Innovations","value":0.0001006,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13566","display_name":"Global Educational Reforms and Inequalities","value":8.27e-05,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12590","display_name":"STEM Education","value":6.56e-05,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12522","display_name":"Mathematics Education and Pedagogy","value":5.43e-05,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T14040","display_name":"Problem Solving Skills Development","value":2.69e-05,"subfield":{"id":"https://openalex.org/subfields/3202","display_name":"Applied Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"x_concepts":[{"id":"145420912","wikidata":"https://www.wikidata.org/wiki/Q853077","display_name":"Mathematics education","score":0.784029483795166},{"id":"33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","score":0.6533729434013367},{"id":"15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","score":0.6467999815940857},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.5669986605644226},{"id":"154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","score":0.31880754232406616}],"counts_by_year":[{"year":2016,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2017,"works_count":6,"oa_works_count":5,"cited_by_count":0},{"year":2018,"works_count":11,"oa_works_count":9,"cited_by_count":4},{"year":2019,"works_count":2,"oa_works_count":2,"cited_by_count":6},{"year":2020,"works_count":3,"oa_works_count":3,"cited_by_count":17},{"year":2021,"works_count":9,"oa_works_count":9,"cited_by_count":22},{"year":2022,"works_count":5,"oa_works_count":5,"cited_by_count":40},{"year":2023,"works_count":3,"oa_works_count":3,"cited_by_count":49},{"year":2024,"works_count":2,"oa_works_count":2,"cited_by_count":49},{"year":2025,"works_count":2,"oa_works_count":1,"cited_by_count":35},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":26}],"display_name_alternatives":["Sipayung, Tetty","Sipayung, Tetty Natalia","T N Sipayung","Tetty Natalia Sipayung"],"block_key":"t sipayung","works_api_url":"https://api.openalex.org/works?filter=author.id:A5010600288","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5010600288","updated_date":"2026-11-10T14:30:39","created_date":"2017-06-15T00:00:00"}
