"Although the animals in the ocean's oxygen minimum zone have adapted over millions of years to the very low oxygen of this extreme and widespread midwater habitat, they are living at the very limits of their physiological capability," said Karen Wishner, a professor of oceanography at URI's Graduate School of Oceanography and lead author of a new paper on deoxygenation
and zooplankton in the Eastern Tropical North Pacific OMZ.
This current article confirms the dramatic effect of surgical interruption of IVC blood return on cerebral deoxygenation
because both the absolute value and relative change exceeded commonly used thresholds in cardiac surgical patients.
While this is an important concern, and likely to be exacerbated by climate change, deoxygenation
of the open ocean is a distinct issue, happening on a much larger scale.
Although the coprecipitation [33, 34] and chemical grafting [35, 36] methods have been used under relatively mild conditions (~80[degrees]C reaction temperature), the presence of bases at elevated temperatures inevitably results in partial deoxygenation
of the GO framework [37, 38].
Leung, "Pathways for the deoxygenation
of triglycerides to aliphatic hydrocarbons over activated alumina," Energy & Fuels, vol.
poses a serious threat to marine life and ecosystems.
Near infrared spectroscopy (NIRS), in particular, is an optical method that allows transcutaneous monitoring of skeletal muscle deoxygenation
(deoxi-Hb), an index of fractional [O.sub.2] extraction (8,9).
Acute hematomas: Effects of deoxygenation
, hematocrit, and fibrin-clot formation and retraction on T2 shortening.
of the wine can be a solution to decrease DO, but it has to be well executed without being detrimental to wine quality.
Cheng and colleagues (5) reported that inspiratory muscle warm-up attenuated muscle deoxygenation
during a cycling exercise in women athletes.
Other articles explore such topics as satellite-based Lagrangian view on phytoplankton dynamics; improving marine ecosystem models with biochemical tracers; how pelagic species respond to climate change; ecology, biogeochemistry, and optical properties of coccolithophores; dispersion, diffusion, and confusion: lateral mixing in the ocean; the bottom boundary layer; and manifestation, drivers, and emergence of open ocean deoxygenation
. ([umlaut] Ringgold, Inc., Portland, OR)