Bibliographic record
Abstract
The phenomenon of obligate embryonic diapause, comprising developmental arrest at the blastocyst stage, has been recognized to occur in more than 60 species in three families in the Order Carnivora.The evolutionary advantage believed to be conferred by this trait is that it permits mating and parturition to occur at the most favorable times of year for reproductive success and offspring survival.The carnivore blastocyst in diapause consists of hundreds of cells, configured in the classic mammalian compartments of inner cell mass and trophoblast.It is encapsulated in a glycoprotein coat, derived, at least in part, from the zona pellucida of the parent oocyte.The temporal uncoupling of mating from parturition is regulated by changes in the annual photoperiod, mediated through the pineal gland, pars tuberalis a pars distalis of the pituitary and thyroid glands.In the best-studied species, the pituitary signal that awakes the embryo from arrest is prolactin, acting on the ovary and on the uterus.Ovarian signals, other than progesterone are not well understood, but it appears that there is an ovarian peptide essential for the reactivation of the embryo in mink.New studies have identified the uterine signals in the mink, and it has been shown that the synthesis and secretion of polyamines activates the mink embryo from diapause.While extensive progress has been made, it is not clear whether the regulatory mechanisms that have been identified in the better-known species are universal to carnivore diapause.As many of the carnivore species are endangered, further research on diapause is essential to their survival.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 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".