A common problem in postal surveys of human populations
arises when some of the sampled people fail to respond to the questionnaire.
The problem is that the answers provided by the respondents
may not be typical of the answers the nonrespondents would
provide if these had been solicited more successfully....
The transcriptional promoter sequences for the Rhizobium meliloti
nitrogen fixation genes nifA and nifB were cloned to a β-galactosidase gene
fusion plasmid vector and transferred by homologous recombination to a
specialized transducing phage. The promoter fusions were then transduced
to a recombination deficient strain of Escherichia coli as single-copy
lysogens...
The Pacific Salmon Treaty was established by Canada and the United States
to secure sustainability of salmon harvests within the Pacific Northwest. Renewed
in June 1999, the treaty functions to legitimize and empower the Pacific Salmon
Commission as the agent of fishery sustainability. The Pacific Salmon
Commission serves as a...
Gas hydrates, pervasive in continental margin sediments, are expected to release methane in
response to ocean warming, but the geographic range of dissociation and subsequent flux of methane to
the ocean are not well constrained. Sediment column thermal models based on observed water column
warming trends offshore Washington (USA) show...
Gas hydrates, pervasive in continental margin sediments, are expected to release methane in
response to ocean warming, but the geographic range of dissociation and subsequent flux of methane to
the ocean are not well constrained. Sediment column thermal models based on observed water column
warming trends offshore Washington (USA) show...
Full Text:
Cascadia margin gas hydrates
in response to contemporary ocean warming
Susan L. Hautala1, Evan A. Solomon1
