Noradrenergic Control of Blood Vessels in the Premature Lamb Fetus
Bibliographic record
Abstract
Experiments were conducted with fetal lambs of 113-120 days gestation (0.8 term) to assess the integrity of adrenergic neurotransmission at the level of the blood vessels. Regional blood flow and the distribution of blood from the inferior vena cava were compared when the arterial pressure was increased either by an infusion of exogenous noradrenaline or when tyramine was used to evoke a local release of the neurotransmitter. Most vascular beds perfused via the descending aorta were constricted to a similar extent by both drugs although the renal circulation did not respond to tyramine. Noradrenaline increased the distribution of blood from the inferior vena cava to the fetal lungs and both drugs increased placental blood flow. These data indicate that mechanisms for effective adrenergic control of vascular are developed in many organs of the premature lamb fetus by 0.8 of term.
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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 | 0.001 | 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".