Electrical and Mechanical Activity of the Isolated Canine Stomach Perfused with Homologous, in vitro, Oxygenated Blood
Bibliographic record
Abstract
Electrical and mechanical activity was recorded from six totally isolated canine stomachs perfused with homologous blood oxygenated in vitro. Reactions to electrical vagal stimulation to cholinergic drugs and to pentagastrin were recorded. Electrical control activity, electrical response activity and mechanical response of isolated stomachs, observed in this in vitro system, were identical to those found in canine-isolated stomachs perfused with cross-circulated blood of living animals. It appears that when a living animal is included in the perfusion system of the isolated stomach, drugs used for gastric stimulation are rapidly metabolized and, due to this physiological clearance, repeated injections of stimulants can be given for several hours. Using the in vitro perfusion system, as in this experiment, injected drugs accumulate in the perfusion blood, as no clearance mechanism is available. Partial or total exchange of perfusion blood is therefore recommended. With these reservations, the in vitro system appears to be an easy method for the study of nonstimulated and stimulated electrical and mechanical activity of the totally isolated canine stomach.
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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 | 0.001 |
| 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".