Finite Element Analysis of a Lumbar Vertebra Reconstructed by Biocomposite Alloplastic Grafts
Why this work is in the frame
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Bibliographic record
Abstract
This research approaches the fourth lumbar (L4) vertebra reconstruction by a tronconic alloplastic graft fabricated by a powder metallurgy technology using Ca 5 (PO 4 ) 3 (OH) (hydroxyapatite), TiH 2 (titanium hydride) and CaCO 3 (calcium carbonate) particles as initial powder mixture. The high frequency of the L4 vertebra fractures due to motor vehicle traffic accidents justify the necessity of vertebral reconstruction. This approach simulates the biomechanical behavior of the ANSYS model consisting in the L4 vertebra and the tronconic biocomposite graft during the frontal impact load. The von Misses stress and strain responses from the model depend on the physical and mechanical properties of the biocomposite grafts, experimentally determined. The best simulated mechanical behavior corresponds to the mechanical shielding phenomenon occurring from the biocomposite graft on behalf of the L4 vertebra.
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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 | 0.001 |
| 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