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A 500-kiloton airburst over Chelyabinsk and an enhanced hazard from small impactors.
Brown PG, Assink JD, Astiz L, Blaauw R, Boslough MB, Borovička J, Brachet N, Brown D, Campbell-Brown M, Ceranna L, Cooke W, de Groot-Hedlin C, Drob DP, Edwards W, Evers LG, Garces M, Gill J, Hedlin M, Kingery A, Laske G, Le Pichon A, Mialle P, Moser DE, Saffer A, Silber E, Smets P, Spalding RE, Spurný P, Tagliaferri E, Uren D, Weryk RJ, Whitaker R, Krzeminski Z. Brown PG, et al. Among authors: campbell brown m. Nature. 2013 Nov 14;503(7475):238-41. doi: 10.1038/nature12741. Epub 2013 Nov 6. Nature. 2013. PMID: 24196713 Free article.
This suggests a non-equilibrium (if the population were in a long-term collisional steady state the size-frequency distribution would either follow a single power law or there must be a size-dependent bias in other surveys) in the near-Earth asteroid population for objects …
This suggests a non-equilibrium (if the population were in a long-term collisional steady state the size-frequency distribution would …
Scottish gynaecologists: their views on hormone replacement therapy.
Campbell-Brown M, McEwan HP. Campbell-Brown M, et al. Health Bull (Edinb). 1992 May;50(3):248-51. Health Bull (Edinb). 1992. PMID: 1506194
Several problems associated with the use of the therapy were indicated. These included uncertainties about the risks of long term use and the management of unscheduled vaginal bleeding, but there was also concern over the administrative and prescribing costs if the therapy …
Several problems associated with the use of the therapy were indicated. These included uncertainties about the risks of long term use …