Bibliographic record
Abstract
Partially Degenerate Helium Cores by Neutrino Loss".Mitalas first came to the University of Western Ontario (informally known as Western University) in 1964 as a postdoctoral fellow in its Department of Physics.He joined Western's newly formed Department of Astronomy as a faculty member in 1968.He retired in 1996, about the same time as the merger of the two departments into the present Department of Physics & Astronomy.As a professor emeritus, he was a regular participant in department events.Department members remember Mitalas as "a true intellectual, being extremely curious about the world and its people."Mitalas' astronomical publication record reflects his background in stellar interiors, including stellar nucleosynthesis, the physics of massive star evolution, and solar physics.His most-cited work, "Formation and Evolution of Massive Stars" (Beech and Mitalas, 1994 ApJS, 95, 517) grew out of M. Beech's 1993 Ph.D. thesis and was still being cited 25 years later.Mitalas' other graduate students included Herbert J. Falk (PhD 1979) and S.J. Shadick (MSc 1978).Mitalas had a distinctive low voice and was known as a quiet but serious lecturer who occasionally terrified graduate students with questions stemming from his deep expertise.A departmental legend that exemplifies Mitalas involves a land border crossing into Detroit with a carload of Western students enroute to a conference in the United States (possibly the June 1978 AAS meeting in Madison, Wisconsin).Mitalas was driving, and when asked about their destination by the border guard, replied, "I don't think that's any of your business."After long discussions clarifying that their destination was in fact the border guard's business, Mitalas and companions were allowed to continue.Mitalas was one of 138 Charter Members of the Canadian Astronomical Society (CASCA), founded in 1971.This obituary makes use of the 'Charter Members Obituaries' produced by the CASCA Heritage Committee.
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.003 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.086 | 0.060 |
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".