{"id":"W2152175027","doi":"10.1073/pnas.0800894105","title":"Directly dated starch residues document early formative maize ( <i>Zea mays</i> L.) in tropical Ecuador","year":2008,"lang":"en","type":"article","venue":"Proceedings of the National Academy of Sciences","topic":"Pacific and Southeast Asian Studies","field":"Social Sciences","cited_by":128,"is_retracted":false,"has_abstract":true,"ca_institutions":"Canadian Heritage; Canadian Food Inspection Agency; Government of Canada; University of Calgary","funders":"Social Sciences and Humanities Research Council of Canada; Killam Trusts","keywords":"Domestication; Zea mays; Starch; Radiocarbon dating; Subsistence agriculture; Geography; Paleoethnobotany; Archaeology; Accelerator mass spectrometry; Formative assessment; Agronomy; Biology; Agriculture; Ecology; Food science","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":["sts"],"consensus_categories":[],"category_scores_codex":[0.001368172,0.0000949707,0.0002074592,0.000168269,0.0006908889,0.00002526606,0.0007286111,0.00007796917,0.0000148305],"category_scores_gemma":[0.0005707603,0.00006411857,0.00006811717,0.001077475,0.00281498,0.0006816749,0.0001343735,0.0001885678,0.000003725692],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00008020435,"about_ca_system_score_gemma":0.00009495668,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0001843477,"about_ca_topic_score_gemma":0.000006257259,"domain_scores_codex":[0.9974406,0.00003559461,0.0003621727,0.0002141052,0.001667614,0.0002798584],"domain_scores_gemma":[0.9992743,0.0001600537,0.0002730199,0.000007716381,0.0002342036,0.00005076033],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0002231433,0.0002223806,0.5529275,0.00006932714,0.00006463211,2.747381e-7,0.1631497,0.00001348119,0.008269923,0.2701982,0.003659508,0.001201962],"study_design_scores_gemma":[0.0003619863,0.00008306369,0.8788387,0.0001096289,0.000007570075,0.00000305318,0.03372436,0.0000198343,0.01132274,0.074697,0.0006833457,0.0001487615],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9166942,0.0001058859,4.180746e-7,0.003689253,0.00001969674,0.0001984546,0.00001490319,0.00001556635,0.07926166],"genre_scores_gemma":[0.9984297,0.0001188517,0.0007149515,0.00009691031,0.00006680266,0.00001408579,6.388382e-8,0.000002609385,0.0005560403],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.3259112,"threshold_uncertainty_score":0.9998988,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0483783461732246,"score_gpt":0.3271883483206551,"score_spread":0.2788100021474305,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}