Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W45150355', 'doi': 'https://doi.org/10.5951/mt.85.1.0034', 'title': 'Activities: Multiplying Integers', 'display_name': 'Activities: Multiplying Integers', 'publication_year': 1992, 'publication_date': '1992-01-01', 'ids': {'openalex': 'https://openalex.org/W45150355', 'doi': 'https://doi.org/10.5951/mt.85.1.0034', 'mag': '45150355'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.5951/mt.85.1.0034', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S2764739392', 'display_name': 'Mathematics Teacher Learning and Teaching PK-12', 'issn_l': '0025-5769', 'issn': ['0025-5769', '2330-0582'], 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/P4310315778', 'host_organization_name': 'National Council of Teachers of Mathematics', 'host_organization_lineage': ['https://openalex.org/P4310315778'], 'host_organization_lineage_names': ['National Council of Teachers of Mathematics'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5028271391', 'display_name': 'Nancy C. Whitman', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I117965899', 'display_name': 'University of Hawaiʻi at Mānoa', 'ror': 'https://ror.org/01wspgy28', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I117965899']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Nancy C. Whitman', 'raw_affiliation_strings': ['1 Teaches undergraduate and graduate courses in mathematics education at the University of Hawaii at Manoa, Honolulu, HI 96822.'], 'affiliations': [{'raw_affiliation_string': '1 Teaches undergraduate and graduate courses in mathematics education at the University of Hawaii at Manoa, Honolulu, HI 96822.', 'institution_ids': ['https://openalex.org/I117965899']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5021863447', 'display_name': 'Mary Kim Prichard', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I102149020', 'display_name': 'University of North Carolina at Charlotte', 'ror': 'https://ror.org/04dawnj30', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I102149020']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Mary Kim Prichard', 'raw_affiliation_strings': ['2 Uniuersity of North Carolina at Charlotte, Charlotte, NC 28223'], 'affiliations': [{'raw_affiliation_string': '2 Uniuersity of North Carolina at Charlotte, Charlotte, NC 28223', 'institution_ids': ['https://openalex.org/I102149020']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5030408398', 'display_name': 'Nadine Bezuk', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I26538001', 'display_name': 'San Diego State University', 'ror': 'https://ror.org/0264fdx42', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I26538001']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Nadine Bezuk', 'raw_affiliation_strings': ['3 San Diego State Uniuersity San Diego, CA 92182'], 'affiliations': [{'raw_affiliation_string': '3 San Diego State Uniuersity San Diego, CA 92182', 'institution_ids': ['https://openalex.org/I26538001']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5071888471', 'display_name': 'Mally Moody', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Mally Moody', 'raw_affiliation_strings': ['4 Oxford High School Oxford, AL 36203'], 'affiliations': [{'raw_affiliation_string': '4 Oxford High School Oxford, AL 36203', 'institution_ids': []}]}], 'countries_distinct_count': 1, 'institutions_distinct_count': 3, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.0, 'has_fulltext': False, 'cited_by_count': 0, 'citation_normalized_percentile': {'value': 0.0, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 0, 'max': 53}, 'biblio': {'volume': '85', 'issue': '1', 'first_page': '34', 'last_page': '52'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T11435', 'display_name': 'Symbolic Computing in Algebraic Geometry and Cryptography', 'score': 0.0794, 'subfield': {'id': 'https://openalex.org/subfields/1703', 'display_name': 'Computational Theory and Mathematics'}, 'field': {'id': 'https://openalex.org/fields/17', 'display_name': 'Computer Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T11435', 'display_name': 'Symbolic Computing in Algebraic Geometry and Cryptography', 'score': 0.0794, 'subfield': {'id': 'https://openalex.org/subfields/1703', 'display_name': 'Computational Theory and Mathematics'}, 'field': {'id': 'https://openalex.org/fields/17', 'display_name': 'Computer Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10963', 'display_name': 'Numerical Optimization Techniques', 'score': 0.0631, 'subfield': {'id': 'https://openalex.org/subfields/2612', 'display_name': 'Numerical Analysis'}, 'field': {'id': 'https://openalex.org/fields/26', 'display_name': 'Mathematics'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/mixed-integer-nonlinear-programs', 'display_name': 'Mixed-Integer Nonlinear Programs', 'score': 0.639958}, {'id': 'https://openalex.org/keywords/nonlinear-programming', 'display_name': 'Nonlinear Programming', 'score': 0.639823}, {'id': 'https://openalex.org/keywords/symbolic-computing', 'display_name': 'Symbolic Computing', 'score': 0.632212}, {'id': 'https://openalex.org/keywords/quadratic-programming', 'display_name': 'Quadratic Programming', 'score': 0.604811}, {'id': 'https://openalex.org/keywords/interior-point-methods', 'display_name': 'Interior-Point Methods', 'score': 0.583554}], 'concepts': [{'id': 'https://openalex.org/C33923547', 'wikidata': 'https://www.wikidata.org/wiki/Q395', 'display_name': 'Mathematics', 'level': 0, 'score': 0.48690712}, {'id': 'https://openalex.org/C94375191', 'wikidata': 'https://www.wikidata.org/wiki/Q11205', 'display_name': 'Arithmetic', 'level': 1, 'score': 0.39644736}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.5951/mt.85.1.0034', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S2764739392', 'display_name': 'Mathematics Teacher Learning and Teaching PK-12', 'issn_l': '0025-5769', 'issn': ['0025-5769', '2330-0582'], 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/P4310315778', 'host_organization_name': 'National Council of Teachers of Mathematics', 'host_organization_lineage': ['https://openalex.org/P4310315778'], 'host_organization_lineage_names': ['National Council of Teachers of Mathematics'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W4245490552', 'https://openalex.org/W3002753104', 'https://openalex.org/W2142036596', 'https://openalex.org/W2077600819', 'https://openalex.org/W2072657027', 'https://openalex.org/W2061531152', 'https://openalex.org/W2042127053', 'https://openalex.org/W2007980826', 'https://openalex.org/W1979597421', 'https://openalex.org/W1587224694'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W45150355', 'counts_by_year': [], 'updated_date': '2024-08-21T01:51:56.943950', 'created_date': '2016-06-24'}