Curvature effects on propagation in cardiac tissue
Why this work is in the frame
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Bibliographic record
Abstract
Simulations of reentry in 1D, 2D and 3D ionic models of cardiac excitable tissue have shown that the APD(DIA) curve is a major determinant of the stability of the propagation. Curvature is also an important factor in extended tissue and kinematical (KIN) models including K and rhythm dependence of /spl Theta/ have been proposed. These models are incomplete since they do not include the effect of APD on the propagation. The authors' objective was to find functions expressing the effect of K and DIA on /spl Theta/ and APD, and to use these them to construct a more complete KIN model of propagation in 2D medium. The /spl Theta/(K,DIA) and APD(K,DIA) were obtained by fitting the results of simulations with a BRT ionic model, using an approximation of the 2D diffusion equation allowing a systematic exploration of K and DIA. The functions were used in a KIN model describing the propagation of period-1 solutions in a 2D ring of tissue.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it