Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W3003854587', 'doi': None, 'title': 'The nitrogen and oxygen isotope values of nitrate in various Korean fertilizers', 'display_name': 'The nitrogen and oxygen isotope values of nitrate in various Korean fertilizers', 'publication_year': 2012, 'publication_date': '2012-12-01', 'ids': {'openalex': 'https://openalex.org/W3003854587', 'mag': '3003854587'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'http://ui.adsabs.harvard.edu/abs/2012AGUFM.H53J1664K/abstract', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306501062', 'display_name': 'AGU Fall Meeting Abstracts', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': None, 'host_organization_name': None, 'host_organization_lineage': [], 'host_organization_lineage_names': [], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': [], '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/A5040788849', 'display_name': 'I. Kim', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'I. Kim', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5102643571', 'display_name': 'Je-Ho Ryu', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'J. Ryu', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5088844072', 'display_name': 'K‐S Lee', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'K. Lee', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5015192611', 'display_name': 'K. Kim', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'K. Kim', 'raw_affiliation_strings': [], 'affiliations': []}], 'institution_assertions': [], 'countries_distinct_count': 0, 'institutions_distinct_count': 0, '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': 65}, 'biblio': {'volume': '2012', 'issue': None, 'first_page': None, 'last_page': None}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T14137', 'display_name': 'Meta-analysis in Ecology and Agriculture Research', 'score': 0.9959, 'subfield': {'id': 'https://openalex.org/subfields/1105', 'display_name': 'Ecology, Evolution, Behavior and Systematics'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, 'topics': [{'id': 'https://openalex.org/T14137', 'display_name': 'Meta-analysis in Ecology and Agriculture Research', 'score': 0.9959, 'subfield': {'id': 'https://openalex.org/subfields/1105', 'display_name': 'Ecology, Evolution, Behavior and Systematics'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T12073', 'display_name': 'Application of Stable Isotopes in Trophic Ecology', 'score': 0.923, 'subfield': {'id': 'https://openalex.org/subfields/2303', 'display_name': 'Ecology'}, 'field': {'id': 'https://openalex.org/fields/23', 'display_name': 'Environmental Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/carbon-and-nitrogen', 'display_name': 'Carbon and Nitrogen', 'score': 0.542715}], 'concepts': [{'id': 'https://openalex.org/C537208039', 'wikidata': 'https://www.wikidata.org/wiki/Q627', 'display_name': 'Nitrogen', 'level': 2, 'score': 0.6387149}, {'id': 'https://openalex.org/C2776384668', 'wikidata': 'https://www.wikidata.org/wiki/Q182168', 'display_name': 'Nitrate', 'level': 2, 'score': 0.6230875}, {'id': 'https://openalex.org/C39432304', 'wikidata': 'https://www.wikidata.org/wiki/Q188847', 'display_name': 'Environmental science', 'level': 0, 'score': 0.5343615}, {'id': 'https://openalex.org/C71468253', 'wikidata': 'https://www.wikidata.org/wiki/Q785643', 'display_name': 'Isotopes of oxygen', 'level': 2, 'score': 0.47548997}, {'id': 'https://openalex.org/C540031477', 'wikidata': 'https://www.wikidata.org/wiki/Q629', 'display_name': 'Oxygen', 'level': 2, 'score': 0.45227414}, {'id': 'https://openalex.org/C107872376', 'wikidata': 'https://www.wikidata.org/wiki/Q321355', 'display_name': 'Environmental chemistry', 'level': 1, 'score': 0.39037076}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.30736125}, {'id': 'https://openalex.org/C178790620', 'wikidata': 'https://www.wikidata.org/wiki/Q11351', 'display_name': 'Organic chemistry', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C13965031', 'wikidata': 'https://www.wikidata.org/wiki/Q243545', 'display_name': 'Nuclear chemistry', 'level': 1, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'http://ui.adsabs.harvard.edu/abs/2012AGUFM.H53J1664K/abstract', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306501062', 'display_name': 'AGU Fall Meeting Abstracts', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': None, 'host_organization_name': None, 'host_organization_lineage': [], 'host_organization_lineage_names': [], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'display_name': 'Zero hunger', 'score': 0.77, 'id': 'https://metadata.un.org/sdg/2'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W3154198278', 'https://openalex.org/W3134290383', 'https://openalex.org/W3130511166', 'https://openalex.org/W3082580485', 'https://openalex.org/W3026340687', 'https://openalex.org/W3023171522', 'https://openalex.org/W3015724286', 'https://openalex.org/W3003683560', 'https://openalex.org/W3000327836', 'https://openalex.org/W3000151529', 'https://openalex.org/W2998576498', 'https://openalex.org/W2995731874', 'https://openalex.org/W2994586489', 'https://openalex.org/W2991459316', 'https://openalex.org/W2991406683', 'https://openalex.org/W2990760037', 'https://openalex.org/W2990624106', 'https://openalex.org/W2989678321', 'https://openalex.org/W2277444343', 'https://openalex.org/W2004103833'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3003854587', 'counts_by_year': [], 'updated_date': '2024-09-15T11:45:05.733140', 'created_date': '2020-02-07'}