Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2990915700', 'doi': None, 'title': 'A compound specific nitrogen isotope record utilizing multiple geoporphyrins and chlorins for Oceanic Anoxic Event 2 at Demerara Rise', 'display_name': 'A compound specific nitrogen isotope record utilizing multiple geoporphyrins and chlorins for Oceanic Anoxic Event 2 at Demerara Rise', 'publication_year': 2007, 'publication_date': '2007-12-01', 'ids': {'openalex': 'https://openalex.org/W2990915700', 'mag': '2990915700'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://ui.adsabs.harvard.edu/abs/2007AGUFMPP51D..07J/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/A5086540894', 'display_name': 'Christopher K. Junium', 'orcid': 'https://orcid.org/0000-0002-4786-8822'}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'C. K. Junium', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5012673184', 'display_name': 'Michael A. Arthur', 'orcid': 'https://orcid.org/0000-0002-7996-4915'}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'M. A. Arthur', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5017091780', 'display_name': 'Brendan J. Keely', 'orcid': 'https://orcid.org/0000-0002-8560-1862'}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'B. J. Keely', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5011497856', 'display_name': 'Katherine H. Freeman', 'orcid': 'https://orcid.org/0000-0002-3350-7671'}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'K. H. Freeman', 'raw_affiliation_strings': [], 'affiliations': []}], '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': 63}, 'biblio': {'volume': '2007', 'issue': None, 'first_page': None, 'last_page': None}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12073', 'display_name': 'Application of Stable Isotopes in Trophic Ecology', 'score': 0.9365, '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'}}, 'topics': [{'id': 'https://openalex.org/T12073', 'display_name': 'Application of Stable Isotopes in Trophic Ecology', 'score': 0.9365, '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': 0.483735}], 'concepts': [{'id': 'https://openalex.org/C108970007', 'wikidata': 'https://www.wikidata.org/wiki/Q568324', 'display_name': 'Anoxic waters', 'level': 2, 'score': 0.8147273}, {'id': 'https://openalex.org/C2779662365', 'wikidata': 'https://www.wikidata.org/wiki/Q5416694', 'display_name': 'Event (particle physics)', 'level': 2, 'score': 0.57575035}, {'id': 'https://openalex.org/C111368507', 'wikidata': 'https://www.wikidata.org/wiki/Q43518', 'display_name': 'Oceanography', 'level': 1, 'score': 0.4768228}, {'id': 'https://openalex.org/C537208039', 'wikidata': 'https://www.wikidata.org/wiki/Q627', 'display_name': 'Nitrogen', 'level': 2, 'score': 0.4605443}, {'id': 'https://openalex.org/C39432304', 'wikidata': 'https://www.wikidata.org/wiki/Q188847', 'display_name': 'Environmental science', 'level': 0, 'score': 0.39621487}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.3661297}, {'id': 'https://openalex.org/C127313418', 'wikidata': 'https://www.wikidata.org/wiki/Q1069', 'display_name': 'Geology', 'level': 0, 'score': 0.27448487}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.109499425}, {'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/C62520636', 'wikidata': 'https://www.wikidata.org/wiki/Q944', 'display_name': 'Quantum mechanics', 'level': 1, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://ui.adsabs.harvard.edu/abs/2007AGUFMPP51D..07J/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': 'Life below water', 'id': 'https://metadata.un.org/sdg/14', 'score': 0.83}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W3201250466', 'https://openalex.org/W3092744544', 'https://openalex.org/W3092440530', 'https://openalex.org/W3088605420', 'https://openalex.org/W3086436621', 'https://openalex.org/W3046166150', 'https://openalex.org/W3042811199', 'https://openalex.org/W3035467957', 'https://openalex.org/W3015319318', 'https://openalex.org/W3013951737', 'https://openalex.org/W3009809394', 'https://openalex.org/W3009556889', 'https://openalex.org/W2999606141', 'https://openalex.org/W2995792004', 'https://openalex.org/W2990662621', 'https://openalex.org/W2990652927', 'https://openalex.org/W2986592845', 'https://openalex.org/W2966539561', 'https://openalex.org/W2765838212', 'https://openalex.org/W2588236826'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2990915700', 'counts_by_year': [], 'updated_date': '2024-08-21T15:08:24.426609', 'created_date': '2019-12-05'}