A Study on Testicular Development in Apteronotus albifrons
Bibliographic record
Abstract
Apteronotus albifrons has its cloacal aperture located in the front of the body and on the back of the lower jaw. A. albifrons possess a pair of testes attached on the mesentery below its liver on the back of the abdominal cavity. In the early days of development, the testes are in translucent elongated thin strips in nude colour. As they develop, the testes will grow thicker and become white or creamy white in color. The rear end of the testes will split whereas the front end will merge to form the vas deferens which is connected to the external environment through the cloacal aperture. Testes of A. albifrons are lobular. There are six stages in its development. At 6 months of age, the testis structure shows clear medium with primary spermatocytes and abundant spermatogonia, suggesting that development is into the stageⅡ. At 8 months of age, testes in male A. albifrons are in the shape of a thin rod in white with blood vessels in presence. Germ cells consist of spermatogonia, primary spermatocytes and spermatocytes, indicating stageⅢ development. At 11 months of age, testes in male A. albifrons grow fuller and are in creamy white with apparent blood vessels present. Primary spermatocytes, secondary spermatocytes, spermatids and a small amount of sperms are president, indicating stageⅣ of development. At 15 months of age, testes in male A. albifrons swells and consist of a large amount of sperms, reaching full maturity. This is the stageⅥof development, after which is the stage featured by testes after spermiation.
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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 | 0.002 | 0.003 |
| 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 | 0.001 |
| 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".