Results 171 to 180 of about 242,361 (288)

Nineteenth-century Ship-based Catches of Gray Whales, Eschrichtius robustus, in the Eastern North Pacific [PDF]

open access: yes, 2010
The 19th century commercial ship-based fishery for gray whales, Eschrichtius robustus, in the eastern North Pacific began in 1846 and continued until the mid 1870’s in southern areas and the 1880’s in the north.
Josephson , Elizabeth A.   +4 more
core  

Predicting DNA fragmentation: A non-destructive analogue to chemical assays using machine learning [PDF]

open access: yesarXiv
Globally, infertility rates are increasing, with 2.5\% of all births being assisted by in vitro fertilisation (IVF) in 2022. Male infertility is the cause for approximately half of these cases. The quality of sperm DNA has substantial impact on the success of IVF.
arxiv  

Whales, dolphins, and porpoises of the eastern North Pacific and adjacent Arctic waters: a guide to their identification [PDF]

open access: yes, 1982
This is an identification guide for cetaceans (whales, dolphins, and porpoises), that was designed to assist laymen in identifying cetaceans encountered in eastern North Pacific and Arctic waters.
Evans, William E.   +4 more
core  

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