Ultrastructure of irregular collagen fibrils of shark mandible
Bibliographic record
Abstract
Sawada T. and Inoue S. 2011. Ultrastructure of irregular collagen fibrils of shark mandible. —Acta Zoologica (Stockholm) 92: 62–66. Collagen fibrillogenesis was investigated in developing fibrous connective tissue (tooth band) in shark mandible by transmission electron microscopy. Fibrils varied considerably in shape and size. Both thin and thick fibrils 40–200 and 400–500 nm in width, respectively, were observed, with the latter showing irregular contours. Examination of both transverse and longitudinal sections of fibril suggested that the irregular, thick fibrils were formed by fusion of the thin fibrils. This was in agreement with a previously proposed mechanism of collagen fibrillogenesis in a variety of tissues, in which formation of thin fibrils is followed by their coalescence into thicker fibrils. Detailed high resolution ultrastructural examination revealed decorin-like, 4.5- to 5.5-nm-wide polygonal frames and 3-nm-wide ribbon-like structures previously identified as chondroitin sulfate proteoglycan ‘double tracks’ localized within the interfibrillar spaces. These structures may be closely involved in collagen fibrillogenesis.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".