Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2048998542', 'doi': 'https://doi.org/10.1038/218158b0', 'title': 'Relationships between the Masses of Subatomic Particles', 'display_name': 'Relationships between the Masses of Subatomic Particles', 'publication_year': 1968, 'publication_date': '1968-04-01', 'ids': {'openalex': 'https://openalex.org/W2048998542', 'doi': 'https://doi.org/10.1038/218158b0', 'mag': '2048998542'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1038/218158b0', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S137773608', 'display_name': 'Nature', 'issn_l': '0028-0836', 'issn': ['0028-0836', '1476-4687'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319908', 'host_organization_name': 'Nature Portfolio', 'host_organization_lineage': ['https://openalex.org/P4310319908', 'https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Nature Portfolio', 'Springer Nature'], '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/A5102476879', 'display_name': 'Mohammad Saleem', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I172780181', 'display_name': 'University of the Punjab', 'ror': 'https://ror.org/011maz450', 'country_code': 'PK', 'type': 'education', 'lineage': ['https://openalex.org/I172780181']}], 'countries': ['PK'], 'is_corresponding': True, 'raw_author_name': 'MOHAMMAD SALEEM', 'raw_affiliation_strings': ['Department of Physics, University of the Panjab, Lahore, Pakistan'], 'affiliations': [{'raw_affiliation_string': 'Department of Physics, University of the Panjab, Lahore, Pakistan', 'institution_ids': ['https://openalex.org/I172780181']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': ['https://openalex.org/A5102476879'], 'corresponding_institution_ids': ['https://openalex.org/I172780181'], 'apc_list': {'value': 9750, 'currency': 'EUR', 'value_usd': 11690, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 0.0, 'has_fulltext': False, 'cited_by_count': 1, 'citation_normalized_percentile': {'value': 0.44297, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 60, 'max': 68}, 'biblio': {'volume': '218', 'issue': '5137', 'first_page': '158', 'last_page': '159'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T11960', 'display_name': 'Relativity and Gravitational Theory', 'score': 0.8918, 'subfield': {'id': 'https://openalex.org/subfields/3103', 'display_name': 'Astronomy and Astrophysics'}, 'field': {'id': 'https://openalex.org/fields/31', 'display_name': 'Physics and Astronomy'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T11960', 'display_name': 'Relativity and Gravitational Theory', 'score': 0.8918, 'subfield': {'id': 'https://openalex.org/subfields/3103', 'display_name': 'Astronomy and Astrophysics'}, 'field': {'id': 'https://openalex.org/fields/31', 'display_name': 'Physics and Astronomy'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T13650', 'display_name': 'Computational Physics and Python Applications', 'score': 0.8635, 'subfield': {'id': 'https://openalex.org/subfields/1702', 'display_name': 'Artificial Intelligence'}, 'field': {'id': 'https://openalex.org/fields/17', 'display_name': 'Computer Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/subatomic-particle', 'display_name': 'Subatomic particle', 'score': 0.96829593}, {'id': 'https://openalex.org/keywords/particle', 'display_name': 'Particle (ecology)', 'score': 0.47096115}], 'concepts': [{'id': 'https://openalex.org/C28294206', 'wikidata': 'https://www.wikidata.org/wiki/Q177013', 'display_name': 'Subatomic particle', 'level': 3, 'score': 0.96829593}, {'id': 'https://openalex.org/C206094082', 'wikidata': 'https://www.wikidata.org/wiki/Q4097', 'display_name': 'Pion', 'level': 2, 'score': 0.7651056}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.6835259}, {'id': 'https://openalex.org/C102999125', 'wikidata': 'https://www.wikidata.org/wiki/Q43116', 'display_name': 'Elementary particle', 'level': 2, 'score': 0.68255246}, {'id': 'https://openalex.org/C185544564', 'wikidata': 'https://www.wikidata.org/wiki/Q81197', 'display_name': 'Nuclear physics', 'level': 1, 'score': 0.48625052}, {'id': 'https://openalex.org/C200006409', 'wikidata': 'https://www.wikidata.org/wiki/Q102742', 'display_name': 'Meson', 'level': 2, 'score': 0.48153907}, {'id': 'https://openalex.org/C2778517922', 'wikidata': 'https://www.wikidata.org/wiki/Q7140482', 'display_name': 'Particle (ecology)', 'level': 2, 'score': 0.47096115}, {'id': 'https://openalex.org/C35048267', 'wikidata': 'https://www.wikidata.org/wiki/Q587553', 'display_name': 'Charged particle', 'level': 3, 'score': 0.46700963}, {'id': 'https://openalex.org/C109214941', 'wikidata': 'https://www.wikidata.org/wiki/Q18334', 'display_name': 'Particle physics', 'level': 1, 'score': 0.43515292}, {'id': 'https://openalex.org/C74650414', 'wikidata': 'https://www.wikidata.org/wiki/Q11397', 'display_name': 'Classical mechanics', 'level': 1, 'score': 0.3684929}, {'id': 'https://openalex.org/C62520636', 'wikidata': 'https://www.wikidata.org/wiki/Q944', 'display_name': 'Quantum mechanics', 'level': 1, 'score': 0.19653195}, {'id': 'https://openalex.org/C145148216', 'wikidata': 'https://www.wikidata.org/wiki/Q36496', 'display_name': 'Ion', 'level': 2, 'score': 0.0}, {'id': 'https://openalex.org/C111368507', 'wikidata': 'https://www.wikidata.org/wiki/Q43518', 'display_name': 'Oceanography', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C127313418', 'wikidata': 'https://www.wikidata.org/wiki/Q1069', 'display_name': 'Geology', 'level': 0, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1038/218158b0', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S137773608', 'display_name': 'Nature', 'issn_l': '0028-0836', 'issn': ['0028-0836', '1476-4687'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319908', 'host_organization_name': 'Nature Portfolio', 'host_organization_lineage': ['https://openalex.org/P4310319908', 'https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Nature Portfolio', 'Springer Nature'], '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': 2, 'referenced_works': ['https://openalex.org/W2051415642', 'https://openalex.org/W3126206051'], 'related_works': ['https://openalex.org/W4386031321', 'https://openalex.org/W4318051774', 'https://openalex.org/W4256274414', 'https://openalex.org/W4255019999', 'https://openalex.org/W2952260174', 'https://openalex.org/W2946415532', 'https://openalex.org/W2945083575', 'https://openalex.org/W2270408733', 'https://openalex.org/W2048998542', 'https://openalex.org/W162692383'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2048998542', 'counts_by_year': [], 'updated_date': '2024-12-16T09:06:26.926425', 'created_date': '2016-06-24'}