{"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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0003474834,0.000403933,0.0002920523,0.001040278,0.0002875641,0.0004390569,0.0002579039,0.0002407287,0.0009464943],"category_scores_gemma":[0.001481052,0.0002975403,0.0002390392,0.0005702578,0.0003703203,0.0004461309,0.0005574237,0.0002100409,0.0002246041],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002535733,"about_ca_system_score_gemma":0.0001859562,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00477811,"about_ca_topic_score_gemma":0.006393417,"domain_scores_codex":[0.9994078,0.00007869504,0.00004190569,0.0000860983,0.0002877002,0.00009774748],"domain_scores_gemma":[0.9993094,0.0001462313,0.0001556314,0.00002817939,0.0003124797,0.00004806376],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0007795834,0.0001625663,0.2074772,0.000272752,0.00009272507,0.0006599054,0.0007450387,0.005053452,0.7536124,0.0001044296,0.0002172993,0.03082269],"study_design_scores_gemma":[0.000009711903,0.001272403,0.7215737,0.00005928668,0.00007463185,0.0006557329,0.001462629,0.009080509,0.2647737,0.00008751915,0.0008982771,0.00005188771],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9988585,0.0001128764,0.0006210015,0.000006570565,0.000003110207,0.00001048212,0.00007758756,0.00001097462,0.0002989873],"genre_scores_gemma":[0.9990927,0.00009335427,0.0005005706,0.000007707938,0.000002740171,0.00001162026,0.0001134448,0.000006089379,0.0001718235],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.00477811,"threshold_uncertainty_score":0.009500623,"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."}}