{"id":"W2996039818","doi":"10.1115/1.4045709","title":"Density Variation in the Expanded Polystyrene Foam of Bicycle Helmets and Its Influence on Impact Performance","year":2019,"lang":"en","type":"article","venue":"Journal of Biomechanical Engineering","topic":"Automotive and Human Injury Biomechanics","field":"Medicine","cited_by":11,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia","funders":"","keywords":"Expanded polystyrene; Head (geology); Polystyrene; Bulk density; Environmental science; Materials science; Composite material; Geology; Soil science","routes":{"ca_aff":true,"ca_fund":false,"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":[],"consensus_categories":[],"category_scores_codex":[0.0006067564,0.0001095441,0.0003093974,0.0003215735,0.00001612422,0.00001021252,0.0001015576,0.00008163561,0.00001876186],"category_scores_gemma":[0.000116873,0.0000698571,0.00008524129,0.0002879986,0.000006632731,0.0001458824,0.00002639719,0.0002633712,0.000004450802],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0000699852,"about_ca_system_score_gemma":0.00003910741,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.000004834843,"about_ca_topic_score_gemma":3.39249e-7,"domain_scores_codex":[0.9990656,0.00002238624,0.000374916,0.00009539135,0.0002935754,0.0001481339],"domain_scores_gemma":[0.9994199,0.00008987598,0.000192831,0.0001262439,0.000100483,0.00007065682],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"observational","study_design_scores_codex":[0.0002722701,0.000112489,0.001379149,0.0001198207,0.00005293041,0.00001547341,0.0002871866,0.0005042769,0.9955732,0.0004932014,0.000002344574,0.001187623],"study_design_scores_gemma":[0.002503426,0.005262944,0.6077261,0.0008357392,0.00008875212,0.0004618829,0.00006303622,0.07380329,0.3088748,0.0001702009,0.00002369702,0.0001861085],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9988062,0.0001236576,0.0007114643,0.00009110828,0.0001036101,0.0001444255,0.00000220423,0.000006496178,0.00001087632],"genre_scores_gemma":[0.9995844,0.00007002047,0.0001990515,0.00006879766,0.00005907856,8.158726e-7,5.980638e-7,0.000009519519,0.000007679603],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.6866984,"threshold_uncertainty_score":0.284869,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01022768536673861,"score_gpt":0.2577486277910247,"score_spread":0.2475209424242861,"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."}}