{"id":"W4408091198","doi":"10.1016/j.apergo.2025.104491","title":"Effects of DC-powered pistol grip tool location and orientation on operator upper extremity stiffness and damping","year":2025,"lang":"en","type":"article","venue":"Applied Ergonomics","topic":"Ergonomics and Musculoskeletal Disorders","field":"Psychology","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Waterloo","funders":"","keywords":"Stiffness; Orientation (vector space); Operator (biology); Structural engineering; Physical medicine and rehabilitation; Engineering; Computer science; Acoustics; Medicine; Physics; Mathematics; Geometry","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":[0.0003863605,0.0004590474,0.0001699695,0.0001753549,0.0001085406,0.000320779,0.0001662554,0.0003452611,0.0007610124],"category_scores_gemma":[0.003034492,0.00028458,0.0002142566,0.0001188401,0.0002664238,0.0001870121,0.0002385629,0.000141997,0.0002154686],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001520129,"about_ca_system_score_gemma":0.0002116067,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001778643,"about_ca_topic_score_gemma":0.002498304,"domain_scores_codex":[0.9997745,0.00006609157,0.00001512298,0.00005148321,0.00005280311,0.00004002953],"domain_scores_gemma":[0.9973998,0.001839019,0.0003675211,0.0001214926,0.0001731436,0.00009903515],"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":[0.01024533,0.001432655,0.30496,0.0004458587,0.0001248825,0.001064385,0.001308226,0.07996166,0.5016512,0.000084825,0.0001550251,0.09856603],"study_design_scores_gemma":[0.0000949231,0.01203085,0.8178952,0.00006136252,0.0001891819,0.0006490511,0.00159252,0.07397816,0.09280492,0.0001928534,0.0004039623,0.0001070854],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9977786,0.00002608967,0.002049671,0.000003981579,0.000001862247,0.000004727484,0.00001280611,0.00001094733,0.0001112153],"genre_scores_gemma":[0.9992353,0.00002409066,0.0006410192,0.00000325773,6.122834e-7,0.000003343373,0.00001292677,0.000002897674,0.00007664616],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.001778643,"threshold_uncertainty_score":0.003536642,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.005155846976185367,"score_gpt":0.2555383832190224,"score_spread":0.2503825362428371,"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."}}