LEAD EXPOSURE IN A MIDDLE CLASS POPULATION OF ANCIENT ROME
Why this work is in the frame
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Bibliographic record
Abstract
The cemetery population of Isola Sacra dates to the 2nd and 3rd centuries AD and consisted of middle class traders and craftsmen as suggested by tomb inscriptions. We present data to show that most of the skeletal remains (humans as well as domestic animals) at the site have become diagenetically contaminated with lead. Analysis of 22 bones from protected monumental tombs, believed to be free of post-mortem changes, shows average lead concentration of 10 μg/g, with the range being 0.87-36 μg/g. The observed bone lead levels are comparable to values that have been reported for many modern urban populations. Calculated average blood lead level was 10 μg/dL (range, 0.89-36 μg/dL) and suggest that exposure to lead was not just restricted to the aristocracy but was pervasive among all social classes of the Roman population. The health risk of the suspected lead exposure dose would have been marginal for the adult population but likely inimical to children. The isotopic composition of the bone lead suggests that the cemetery population obtained their lead from multiple ancient sources. The aim of releasing this report is to encourage further debate and research on the role of lead poisoning in the decline of the ancient Roman Empire
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| 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 it