{"id":"W2008260548","doi":"10.1016/j.jmr.2006.01.007","title":"A simple proof that third-order quadrupole perturbations of the NMR central transition of half-integral spin nuclei are zero","year":2006,"lang":"en","type":"article","venue":"Journal of Magnetic Resonance","topic":"Advanced NMR Techniques and Applications","field":"Chemistry","cited_by":25,"is_retracted":false,"has_abstract":false,"ca_institutions":"McMaster University","funders":"","keywords":"Quadrupole; Simple (philosophy); Zero (linguistics); Spin (aerodynamics); Order (exchange); Zero order; Physics; Chemistry; Computational chemistry; Condensed matter physics; Mathematics; Atomic physics; First order; Thermodynamics; Applied mathematics","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":[0.00008859153,0.0001282584,0.0002562548,0.00003611464,0.00007728246,0.00001173823,0.0003143411,0.00008723058,0.000197275],"category_scores_gemma":[0.00004280248,0.00009126955,0.0002043584,0.0001831107,0.0001505606,0.00009618999,0.00002146584,0.0002622569,4.777431e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00004973378,"about_ca_system_score_gemma":0.00007064599,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00009032058,"about_ca_topic_score_gemma":0.00006289478,"domain_scores_codex":[0.9987652,0.00002248794,0.000561601,0.0001221571,0.0003361932,0.0001923035],"domain_scores_gemma":[0.9986839,0.00005245371,0.0006902833,0.0002915746,0.0002402374,0.00004155221],"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":[0.0007618771,0.003676416,0.03559406,0.001171071,0.00008139669,0.00003256989,0.002506969,0.01462271,0.753347,0.02941291,0.05018947,0.1086036],"study_design_scores_gemma":[0.00236836,0.000392412,0.1722624,0.001444433,0.0001954345,0.0001795067,0.001160103,0.007102258,0.5366961,0.04544747,0.2322408,0.0005106615],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9648069,0.006477185,0.01993134,0.00321396,0.00003768063,0.0003099631,0.0001824244,0.00003131564,0.005009249],"genre_scores_gemma":[0.9926733,0.0001533203,0.006025086,0.00005317804,0.00009119855,0.00001241957,0.000004084724,0.00001737637,0.0009699833],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2166508,"threshold_uncertainty_score":0.3721864,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01027627931811114,"score_gpt":0.2476158901469646,"score_spread":0.2373396108288534,"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."}}