Bibliographic record
Abstract
2010 sees the 50th anniversary of the introduction of the oral contraceptive pill in 1960. This development was made possible by the synthesis of the first orally active progestin some 9 years earlier. The contraceptive pill is the most popular means of family planning in developed countries, and arguably the most effective. It is the most common method of contraception in the USA (18%), Canada (14%), Australia (27%), New Zealand (20%) and most European countries, including the UK (26%)1. Reproductive health and success have in the past and continue today to be important contributors to our survival as a species. However, even from ancient times, there have been attempts to limit the effect of Eve's curse by reducing the number of children and spacing of successive pregnancies. However, it was only with advances in both scientific knowledge and understanding, together with social reforms, that information about birth control and the means to control fertility became widely available in the last century.
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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 | 0.002 | 0.006 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.004 | 0.010 |
| Scholarly communication | 0.003 | 0.005 |
| Open science | 0.001 | 0.003 |
| Research integrity | 0.005 | 0.007 |
| Insufficient payload (model declined to judge) | 0.011 | 0.002 |
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".