Periodicity versus selection effects in the redshift distribution of QSOs
β Scribed by D. Basu
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 177 KB
- Volume
- 322
- Category
- Article
- ISSN
- 0004-6337
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π SIMILAR VOLUMES
Planets such as the Earth cannot form unless elements heavier than helium are available. These heavy elements, or "metals," were not produced in the Big Bang. They result from fusion inside stars and have been gradually building up over the lifetime of the Universe. Recent observations indicate that
## BACKGROUND. Aspirin therapy is accepted widely for secondary prevention in patients with documented cardiovascular disease, but there is a growing trend among healthy individuals to use aspirin as primary chemoprevention for both cardiovascular and oncologic diseases. Accruing evidence suggests