Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2171687215', 'doi': 'https://doi.org/10.1016/0739-7240(87)90010-5', 'title': 'LHRH and β-endorphin in the hypothalamus of the ram in relation to photoperiod and reproductive activity', 'display_name': 'LHRH and β-endorphin in the hypothalamus of the ram in relation to photoperiod and reproductive activity', 'publication_year': 1987, 'publication_date': '1987-07-01', 'ids': {'openalex': 'https://openalex.org/W2171687215', 'doi': 'https://doi.org/10.1016/0739-7240(87)90010-5', 'mag': '2171687215', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/2977110'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/0739-7240(87)90010-5', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S105143944', 'display_name': 'Domestic Animal Endocrinology', 'issn_l': '0739-7240', 'issn': ['0739-7240', '1879-0054'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], '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/A5060226730', 'display_name': 'Francis J. P. Ebling', 'orcid': 'https://orcid.org/0000-0002-7316-9582'}, 'institutions': [{'id': 'https://openalex.org/I4210116174', 'display_name': 'MRC Centre for Reproductive Health', 'ror': 'https://ror.org/02f4tsf92', 'country_code': 'GB', 'type': 'facility', 'lineage': ['https://openalex.org/I4210087105', 'https://openalex.org/I4210116174', 'https://openalex.org/I90344618', 'https://openalex.org/I98677209']}], 'countries': ['GB'], 'is_corresponding': True, 'raw_author_name': 'F.J.P. Ebling', 'raw_affiliation_strings': ['MRC Reproductive Biology Unit, 37 Chalmers Street Edinburgh EH3 9EW, UK'], 'affiliations': [{'raw_affiliation_string': 'MRC Reproductive Biology Unit, 37 Chalmers Street Edinburgh EH3 9EW, UK', 'institution_ids': ['https://openalex.org/I4210116174']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5008916095', 'display_name': 'G. A. Lincoln', 'orcid': 'https://orcid.org/0000-0003-4131-2521'}, 'institutions': [{'id': 'https://openalex.org/I4210116174', 'display_name': 'MRC Centre for Reproductive Health', 'ror': 'https://ror.org/02f4tsf92', 'country_code': 'GB', 'type': 'facility', 'lineage': ['https://openalex.org/I4210087105', 'https://openalex.org/I4210116174', 'https://openalex.org/I90344618', 'https://openalex.org/I98677209']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'G.A. Lincoln', 'raw_affiliation_strings': ['MRC Reproductive Biology Unit, 37 Chalmers Street Edinburgh EH3 9EW, UK'], 'affiliations': [{'raw_affiliation_string': 'MRC Reproductive Biology Unit, 37 Chalmers Street Edinburgh EH3 9EW, UK', 'institution_ids': ['https://openalex.org/I4210116174']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5103205136', 'display_name': 'Graeme B. Martin', 'orcid': 'https://orcid.org/0000-0002-1905-7934'}, 'institutions': [{'id': 'https://openalex.org/I4210116174', 'display_name': 'MRC Centre for Reproductive Health', 'ror': 'https://ror.org/02f4tsf92', 'country_code': 'GB', 'type': 'facility', 'lineage': ['https://openalex.org/I4210087105', 'https://openalex.org/I4210116174', 'https://openalex.org/I90344618', 'https://openalex.org/I98677209']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'G.B. Martin', 'raw_affiliation_strings': ['MRC Reproductive Biology Unit, 37 Chalmers Street Edinburgh EH3 9EW, UK'], 'affiliations': [{'raw_affiliation_string': 'MRC Reproductive Biology Unit, 37 Chalmers Street Edinburgh EH3 9EW, UK', 'institution_ids': ['https://openalex.org/I4210116174']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5109113403', 'display_name': 'Philip L. Taylor', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210116174', 'display_name': 'MRC Centre for Reproductive Health', 'ror': 'https://ror.org/02f4tsf92', 'country_code': 'GB', 'type': 'facility', 'lineage': ['https://openalex.org/I4210087105', 'https://openalex.org/I4210116174', 'https://openalex.org/I90344618', 'https://openalex.org/I98677209']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'P.L. Taylor', 'raw_affiliation_strings': ['MRC Reproductive Biology Unit, 37 Chalmers Street Edinburgh EH3 9EW, UK'], 'affiliations': [{'raw_affiliation_string': 'MRC Reproductive Biology Unit, 37 Chalmers Street Edinburgh EH3 9EW, UK', 'institution_ids': ['https://openalex.org/I4210116174']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': ['https://openalex.org/A5060226730'], 'corresponding_institution_ids': ['https://openalex.org/I4210116174'], 'apc_list': {'value': 3210, 'currency': 'USD', 'value_usd': 3210, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 0.559, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 23, 'citation_normalized_percentile': {'value': 0.790183, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 87, 'max': 88}, 'biblio': {'volume': '4', 'issue': '3', 'first_page': '149', 'last_page': '156'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10584', 'display_name': 'Reproductive Physiology in Livestock', 'score': 0.9951, 'subfield': {'id': 'https://openalex.org/subfields/1102', 'display_name': 'Agronomy and Crop Science'}, '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/T10584', 'display_name': 'Reproductive Physiology in Livestock', 'score': 0.9951, 'subfield': {'id': 'https://openalex.org/subfields/1102', 'display_name': 'Agronomy and Crop Science'}, '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/T10960', 'display_name': 'Hypothalamic control of reproductive hormones', 'score': 0.9863, 'subfield': {'id': 'https://openalex.org/subfields/2743', 'display_name': 'Reproductive Medicine'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, {'id': 'https://openalex.org/T10152', 'display_name': 'Animal Nutrition and Physiology', 'score': 0.9603, 'subfield': {'id': 'https://openalex.org/subfields/1103', 'display_name': 'Animal Science and Zoology'}, 'field': {'id': 'https://openalex.org/fields/11', 'display_name': 'Agricultural and Biological Sciences'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}], 'keywords': [], 'concepts': [{'id': 'https://openalex.org/C126322002', 'wikidata': 'https://www.wikidata.org/wiki/Q11180', 'display_name': 'Internal medicine', 'level': 1, 'score': 0.74542713}, {'id': 'https://openalex.org/C2777003273', 'wikidata': 'https://www.wikidata.org/wiki/Q164386', 'display_name': 'Hypothalamus', 'level': 2, 'score': 0.7367875}, {'id': 'https://openalex.org/C134018914', 'wikidata': 'https://www.wikidata.org/wiki/Q162606', 'display_name': 'Endocrinology', 'level': 1, 'score': 0.722185}, {'id': 'https://openalex.org/C55969652', 'wikidata': 'https://www.wikidata.org/wiki/Q259028', 'display_name': 'photoperiodism', 'level': 2, 'score': 0.6436386}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.43179804}, {'id': 'https://openalex.org/C15744967', 'wikidata': 'https://www.wikidata.org/wiki/Q9418', 'display_name': 'Psychology', 'level': 0, 'score': 0.35818118}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.27604038}], 'mesh': [{'descriptor_ui': 'D007987', 'descriptor_name': 'Gonadotropin-Releasing Hormone', 'qualifier_ui': 'Q000032', 'qualifier_name': 'analysis', 'is_major_topic': True}, {'descriptor_ui': 'D007031', 'descriptor_name': 'Hypothalamus', 'qualifier_ui': 'Q000032', 'qualifier_name': 'analysis', 'is_major_topic': True}, {'descriptor_ui': 'D008027', 'descriptor_name': 'Light', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D010507', 'descriptor_name': 'Periodicity', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D012726', 'descriptor_name': 'Sexual Behavior, Animal', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': True}, {'descriptor_ui': 'D012756', 'descriptor_name': 'Sheep', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': True}, {'descriptor_ui': 'D001615', 'descriptor_name': 'beta-Endorphin', 'qualifier_ui': 'Q000032', 'qualifier_name': 'analysis', 'is_major_topic': True}, {'descriptor_ui': 'D000818', 'descriptor_name': 'Animals', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D007987', 'descriptor_name': 'Gonadotropin-Releasing Hormone', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D007031', 'descriptor_name': 'Hypothalamus', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008297', 'descriptor_name': 'Male', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012726', 'descriptor_name': 'Sexual Behavior, Animal', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012756', 'descriptor_name': 'Sheep', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D001615', 'descriptor_name': 'beta-Endorphin', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/0739-7240(87)90010-5', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S105143944', 'display_name': 'Domestic Animal Endocrinology', 'issn_l': '0739-7240', 'issn': ['0739-7240', '1879-0054'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/2977110', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, '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', 'score': 0.74, 'id': 'https://metadata.un.org/sdg/14'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 34, 'referenced_works': ['https://openalex.org/W122625909', 'https://openalex.org/W1495189256', 'https://openalex.org/W1531520887', 'https://openalex.org/W154588542', 'https://openalex.org/W1565455927', 'https://openalex.org/W1965584350', 'https://openalex.org/W1968827393', 'https://openalex.org/W1970943579', 'https://openalex.org/W1978308275', 'https://openalex.org/W1985908853', 'https://openalex.org/W1989464551', 'https://openalex.org/W1990896300', 'https://openalex.org/W1991754372', 'https://openalex.org/W2000470884', 'https://openalex.org/W2000901537', 'https://openalex.org/W2006080244', 'https://openalex.org/W2007192230', 'https://openalex.org/W2009122075', 'https://openalex.org/W2010233658', 'https://openalex.org/W2033775177', 'https://openalex.org/W2040486830', 'https://openalex.org/W2040838388', 'https://openalex.org/W2062745050', 'https://openalex.org/W2069007958', 'https://openalex.org/W2071599591', 'https://openalex.org/W2075503328', 'https://openalex.org/W2077170823', 'https://openalex.org/W2088121632', 'https://openalex.org/W2102462083', 'https://openalex.org/W2107570993', 'https://openalex.org/W2113301538', 'https://openalex.org/W2120611113', 'https://openalex.org/W228864229', 'https://openalex.org/W2406453486'], 'related_works': ['https://openalex.org/W4249176446', 'https://openalex.org/W2748952813', 'https://openalex.org/W2132898409', 'https://openalex.org/W2037631372', 'https://openalex.org/W2030889776', 'https://openalex.org/W1984079239', 'https://openalex.org/W1979139803', 'https://openalex.org/W1974041167', 'https://openalex.org/W1966775726', 'https://openalex.org/W1966504330'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2171687215', 'counts_by_year': [{'year': 2013, 'cited_by_count': 1}], 'updated_date': '2024-12-16T03:37:57.760853', 'created_date': '2016-06-24'}