Biosensor it affects marine organisms, especially plankton (floating microorganisms) and viruses that attack plankton. Plankton form the base of the marine food chains and are believed to affect our planet's temperature and weather by uptake of CO for photosynthesis. Deneb Karentz, a researcher at the Laboratory of Radio-biology and Environmental Health (University of California, San Francisco) has devised a simple method for measuring ultraviolet penetration and intensity. Working in the Antarctic Ocean, she submerged to various depths thin plastic bags containing special strains of "E. coli" that are almost totally unable to repair ultraviolet radiation damage to their DNA. Bacterial death
Anthropology of food of food anthropology" for his work "Sweetness and Power (1985)," which linked British demand for sugar with the creation of empire and exploitative industrial labor conditions. Research has traced the material and symbolic importance of food, as well as how they intersect. Examples of ongoing themes are food as a form of differentiation, commensality, and food's role in industrialization and globalizing labor and commodity chains. Several related and interdisciplinary academic programs exist in the US and UK (listed under Food studies institutions). Anthropology of food Anthropology of food is a sub-discipline of anthropology that connects an ethnographic and historical perspective