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Methane is a product of biogeochemical processes which respond to changes in climate. The history of atmospheric methane is recorded by ice cores providing insight into past changes in these biogeochemical processes. This dissertation is comprised of three studies which focus on centennial- and millenial-scale variability of methane from ice...
The albedo of Arctic sea ice depends greatly on the formation of melt ponds. These ponds form in depressions on the ice as surface snow melts during the summer months, and their location is determined mainly by the initial snow topography. Using a high resolution sea ice model forced with...
The economic status of the Black Americans has lagged far behind that of non-Black Americans in the last four centuries. The major reasons are manifested in (1) discrimination in employment
practices by: employers, public and private employment agencies, labor organizations, and apprenticeship agencies; and (2) discrimination in distribution of factor...
Many aquatic habitats in coastal Oregon have been impacted by historic land use practices that led to losses of in-stream wood and associated degraded fish habitats. Many of these streams are now bordered by stands of dense second growth forests (30–80 years) that are incorporated into riparian buffer zones with...
We investigated DNA methylomes of pediatric B-cell
acute lymphoblastic leukemias (B-ALLs) using
whole-genome bisulfite sequencing and high-definition
microarrays, along with RNA expression
profiles. Epigenetic alteration of B-ALLs occurred in
two tracks: de novo methylation of small functional
compartments and demethylation of large intercompartmental
backbones. The deviations were exaggerated
in lamina-associated...
We investigated DNA methylomes of pediatric B-cell
acute lymphoblastic leukemias (B-ALLs) using
whole-genome bisulfite sequencing and high-definition
microarrays, along with RNA expression
profiles. Epigenetic alteration of B-ALLs occurred in
two tracks: de novo methylation of small functional
compartments and demethylation of large intercompartmental
backbones. The deviations were exaggerated
in lamina-associated...
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Lee, S. T., Muench, M. O., Fomin, M. E., Xiao, J., Zhou, M., de Smith, A., ... &
Wiemels, J. L. (2015
We report on geochemical data from anoxic sequences of the Nicobar Fan, recovered during International Ocean Discovery Program (IODP) expedition 362 to the Sumatra subduction zone. Analyses include strontium and carbon isotope composition of pore fluids, elemental and isotopic composition of carbonate concretions, and whole sediment analyses.
