Echinacoside and Alkamide Distribution in<i>Echinacea angustifolia</i>Root
Bibliographic record
Abstract
The con cen tra tion of three marker com pounds in Echinacea angustifolia, echinacoside, undeca-2E/Z-en 8, 10-diyonic acid isobutyl -amide (alkamide 1), and dodeca-2E, 4E, 8Z, 10E/Z-tetraenoic acid isobutylamide (alkamide 2), as a func tion of root depth was quan ti fied. These com pound con cen tra tions were con stant for echinacoside and alkamide 1, but de creased with root depth for alkamide 2. E. angustifolia root-har vest ing prac tices could there fore be based on root mass max i mi-za tion. Cul ti va tion in sandy loam soil re sulted in a sig nif i cantly greater mass of alkamide 2 than in soil with higher con cen tra tions of clay and silt par ti cles. Di rect-seed ing pro duced greater masses of echinacoside, alkamide 1, and alkamide 2 over trans plant ing. The three-year plant age pro -vided greater masses of echinacoside, alkamide 1, and alkamide 2 when com pared to the two-year-old plants.
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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 | 0.000 | 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) | 0.001 | 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".