Azaspiracid-1, a novel marine toxin that contains 9 rings and 20 stereogenic centers, has drawn considerable attention from synthetic groups worldwide due to its structural complexity, which includes a unique trioxabisspiroketal fused to a tetrahydrofuran ring (ABCD rings), a piperidine-tetrahydrofuran spiroaminal system fused to a 2,9-dioxabicyclo[3.3.1]nonane system (FGHI rings), a...
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been completed by Yadav,
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Kozmin,
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Crimmins
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and Panek.
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Carbon and energy fluxes were measured with the eddy covariance technique
above two semi-arid ecosystems, ponderosa pine and juniper/sagebrush, located in
central Oregon. The two ecosystems have low LAI and a very open canopy structure.
The energy closure was ~70-80% at both ecosystems, equivalent to an imbalance of
150-250 W...
The fatty acids of coho salmon were identified and then a study
was conducted to determine the effects of exercise on the fatty acids
of salmon forced to swim against water velocities of 52, 54, 56, and
59 cm/sec, The shorter and lighter salmon were less competent at
a given...