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requiring farmers to recycle this element in a reactive form within their agroecosystems. This constraint is reflected in the agricultural treatise by Marcus Porcius Cato (234–143 bc)De Agri Cultura, which recommends to “save carefully goat, sheep, cattle, and all other dung”9. The inventio...
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Unlocking Alzheimer’s: Memory Complaints Can Predict Biological Changes in the Brain Researchers from Mass General Brigham have found that self-reports of cognitive decline by patients and their partners are linked to the accumulation of tau in the brain, a marker of Alzheimer’s disease. Credit:...
know until now that the birds are also likely very important for theice worms," Hotaling said. "If you are super isolated like an ice worm, you could easily become inbred. But if birds are bringing little bits of new diversity to your mountaintop glacier that could be really good for ...
(vol/vol), and then frozen in liquid nitrogen. Intracellular metabolites were extracted via the freeze/thaw cycle five times. After centrifugation and nitrogen blowing, 100 µL ddH2O was added to the sample for resuspension and was taken for derivatization reaction. The sample derivatization ...
harvested (defined by no change >±5% in either A735 or chlorophyll fluorescence Measurement of biomass and its constituents. Total C, N were determined by elemental analysis on 2 mg of freeze-dried material, and protein was determined by hot-TCA extraction followed by Lowry assay, as ...
(CoAS)2is eluted with a 40% acetone solution containing 0.028% ammonia. The solution is then concentrated under reduced pressure and the residual water removed by freeze-drying to yield the desired product. It has to be noted that this chromatographic method (without considering the charcoal ...