Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W1999814206', 'doi': 'https://doi.org/10.1073/pnas.58.2.719', 'title': 'Energy transfer: a spectroscopic ruler.', 'display_name': 'Energy transfer: a spectroscopic ruler.', 'publication_year': 1967, 'publication_date': '1967-08-01', 'ids': {'openalex': 'https://openalex.org/W1999814206', 'doi': 'https://doi.org/10.1073/pnas.58.2.719', 'mag': '1999814206', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/5233469', 'pmcid': 'https://www.ncbi.nlm.nih.gov/pmc/articles/335693'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1073/pnas.58.2.719', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S125754415', 'display_name': 'Proceedings of the National Academy of Sciences', 'issn_l': '0027-8424', 'issn': ['0027-8424', '1091-6490'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320052', 'host_organization_name': 'National Academy of Sciences', 'host_organization_lineage': ['https://openalex.org/P4310320052'], 'host_organization_lineage_names': ['National Academy of Sciences'], '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': True, 'oa_status': 'green', 'oa_url': 'https://europepmc.org/articles/pmc335693?pdf=render', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5063427188', 'display_name': 'Lubert Stryer', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'L Stryer', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5029761510', 'display_name': 'Richard P. Haugland', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'R P Haugland', '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': 6.533, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 1847, 'citation_normalized_percentile': {'value': 0.999889, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 99, 'max': 100}, 'biblio': {'volume': '58', 'issue': '2', 'first_page': '719', 'last_page': '726'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10911', 'display_name': 'Peptide Synthesis and Drug Discovery', 'score': 0.994, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10911', 'display_name': 'Peptide Synthesis and Drug Discovery', 'score': 0.994, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T11667', 'display_name': 'Breath Analysis Technology', 'score': 0.9911, 'subfield': {'id': 'https://openalex.org/subfields/2204', 'display_name': 'Biomedical Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10913', 'display_name': 'Molecular Electronic Devices and Systems', 'score': 0.9908, 'subfield': {'id': 'https://openalex.org/subfields/2208', 'display_name': 'Electrical and Electronic Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/ruler', 'display_name': 'Ruler', 'score': 0.8880168}, {'id': 'https://openalex.org/keywords/conductance-switching', 'display_name': 'Conductance Switching', 'score': 0.531032}], 'concepts': [{'id': 'https://openalex.org/C165743212', 'wikidata': 'https://www.wikidata.org/wiki/Q104555', 'display_name': 'Ruler', 'level': 2, 'score': 0.8880168}, {'id': 'https://openalex.org/C106447425', 'wikidata': 'https://www.wikidata.org/wiki/Q11379', 'display_name': 'Energy transfer', 'level': 2, 'score': 0.56802976}, {'id': 'https://openalex.org/C186370098', 'wikidata': 'https://www.wikidata.org/wiki/Q442787', 'display_name': 'Energy (signal processing)', 'level': 2, 'score': 0.41707766}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.38671845}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.27735257}, {'id': 'https://openalex.org/C159467904', 'wikidata': 'https://www.wikidata.org/wiki/Q2001702', 'display_name': 'Chemical physics', 'level': 1, 'score': 0.17732146}, {'id': 'https://openalex.org/C62520636', 'wikidata': 'https://www.wikidata.org/wiki/Q944', 'display_name': 'Quantum mechanics', 'level': 1, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D004735', 'descriptor_name': 'Energy Transfer', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D010455', 'descriptor_name': 'Peptides', 'qualifier_ui': 'Q000138', 'qualifier_name': 'chemical synthesis', 'is_major_topic': True}, {'descriptor_ui': 'D011392', 'descriptor_name': 'Proline', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D013057', 'descriptor_name': 'Spectrum Analysis', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D055598', 'descriptor_name': 'Chemical Phenomena', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D002627', 'descriptor_name': 'Chemistry, Physical', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005453', 'descriptor_name': 'Fluorescence', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D010455', 'descriptor_name': 'Peptides', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D011048', 'descriptor_name': 'Polarography', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D013223', 'descriptor_name': 'Statistics as Topic', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 4, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1073/pnas.58.2.719', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S125754415', 'display_name': 'Proceedings of the National Academy of Sciences', 'issn_l': '0027-8424', 'issn': ['0027-8424', '1091-6490'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320052', 'host_organization_name': 'National Academy of Sciences', 'host_organization_lineage': ['https://openalex.org/P4310320052'], 'host_organization_lineage_names': ['National Academy of Sciences'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': True, 'landing_page_url': 'https://europepmc.org/articles/pmc335693', 'pdf_url': 'https://europepmc.org/articles/pmc335693?pdf=render', 'source': {'id': 'https://openalex.org/S4306400806', 'display_name': 'Europe PMC (PubMed Central)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1303153112', 'host_organization_name': 'European Bioinformatics Institute', 'host_organization_lineage': ['https://openalex.org/I1303153112'], 'host_organization_lineage_names': ['European Bioinformatics Institute'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': True, 'landing_page_url': 'https://www.ncbi.nlm.nih.gov/pmc/articles/PMC335693', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S2764455111', 'display_name': 'PubMed Central', 'issn_l': None, 'issn': None, 'is_oa': True, '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': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/5233469', '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': {'is_oa': True, 'landing_page_url': 'https://europepmc.org/articles/pmc335693', 'pdf_url': 'https://europepmc.org/articles/pmc335693?pdf=render', 'source': {'id': 'https://openalex.org/S4306400806', 'display_name': 'Europe PMC (PubMed Central)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1303153112', 'host_organization_name': 'European Bioinformatics Institute', 'host_organization_lineage': ['https://openalex.org/I1303153112'], 'host_organization_lineage_names': ['European Bioinformatics Institute'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [{'score': 0.9, 'display_name': 'Affordable and clean energy', 'id': 'https://metadata.un.org/sdg/7'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 5, 'referenced_works': ['https://openalex.org/W1521958691', 'https://openalex.org/W2009578701', 'https://openalex.org/W2059126503', 'https://openalex.org/W2261550524', 'https://openalex.org/W2335552270'], 'related_works': ['https://openalex.org/W4387497383', 'https://openalex.org/W2948807893', 'https://openalex.org/W2899084033', 'https://openalex.org/W2778153218', 'https://openalex.org/W2748952813', 'https://openalex.org/W2607424097', 'https://openalex.org/W2606230654', 'https://openalex.org/W2384464875', 'https://openalex.org/W2319480705', 'https://openalex.org/W1531601525'], 'abstract_inverted_index': {'Electronic': [0], 'excitation': [1], 'energy': [2, 10], 'transfer': [3, 11], 'as': [4, 14], 'function': [5], 'of': [6], 'distance': [7], 'measured,': [8], 'noting': [9], 'process': [12], 'use': [13], 'spectroscopic': [15], 'ruler': [16]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W1999814206', 'counts_by_year': [{'year': 2024, 'cited_by_count': 41}, {'year': 2023, 'cited_by_count': 44}, {'year': 2022, 'cited_by_count': 51}, {'year': 2021, 'cited_by_count': 54}, {'year': 2020, 'cited_by_count': 58}, {'year': 2019, 'cited_by_count': 51}, {'year': 2018, 'cited_by_count': 69}, {'year': 2017, 'cited_by_count': 57}, {'year': 2016, 'cited_by_count': 64}, {'year': 2015, 'cited_by_count': 68}, {'year': 2014, 'cited_by_count': 76}, {'year': 2013, 'cited_by_count': 89}, {'year': 2012, 'cited_by_count': 87}], 'updated_date': '2024-09-19T12:18:40.452170', 'created_date': '2016-06-24'}