Bibliographic record
Abstract
The pecten oculi of the diurnally active pigeon (Columba livia) has been examined by light and electron microscopy. In this species the pecten is of the pleated type. It is situated over the optic nerve head and extends out into the vitreous. Fifteen to 17 accordion folds are joined apically by a heavily pigmented ridge of tissue which holds the pecten in a fan-like shape, widest at the base. The entire pecten is enclosed by a fine basal lamina. Within each fold are numerous capillaries, larger blood vessels and melanocytes. The capillaries are surrounded by thick fibrillar basal laminae which often contain pericytes. These capillaries display numerous microfolds on both the luminal and abluminal borders. The endothelial cell body is extremely thin with most organelles present in a paranuclear location. The melanocytes which are more plentiful in the bridge region form an incomplete sheath around the capillaries and other blood vessels. The morphology of the pecten in the pigeon is indicative of a heavy involvement in the transport of materials.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".