• phenanthrene
  • Residents of Qidong, People's Republic of China, are at high risk for development of hepatocellular carcinoma, in part due to consumption of aflatoxin-contaminated foods, and are exposed to high levels of phenanthrene, a sentinel of hydrocarbon air toxics. (aacrjournals.org)
  • Oceanic
  • Coccolithophores are unicellular calcifying marine phytoplankton that can form large and conspicuous blooms in the oceans and make significant contributions to oceanic carbon cycling and atmospheric CO 2 regulation. (hindawi.com)
  • This is surprising given the ecological importance of coccolithophorid algae, which by forming calcified scales (coccoliths) contribute significantly to the production of pelagic carbonate, as well as making a significant contribution to oceanic carbon cycling and regulation of atmospheric CO 2 levels [ 4 ]. (hindawi.com)
  • toxic
  • We have previously evaluated two chemopreventive strategies through randomized clinical trials in the Qidong region that sought to attenuate the toxic manifestations of aflatoxins by ( a ) blocking carcinogen bioavailability and ( b ) altering the metabolic phenotype of exposed individuals, thereby enhancing the detoxication and elimination of aflatoxin. (aacrjournals.org)
  • The toxicity of CBNP has been attributed to their large surface area, and through adsorbing intrinsically toxic substances, such as polycyclic aromatic hydrocarbons (PAH). (biomedcentral.com)
  • resonance
  • The selectivity for alpha over beta substitution can be rationalized in terms of the resonance structures of the intermediate: for the alpha substitution intermediate, seven resonance structures can be drawn, of which four preserve an aromatic ring. (wikipedia.org)
  • For beta substitution, the intermediate has only six resonance structures, and only two of these are aromatic. (wikipedia.org)
  • species
  • Considered a global biodiversity hotspot, the Niger Delta wetlands play a vital role in preserving seascape biodiversity, ensuring regional water and food security, preventing mainland inundation, housing various critical species, and serving as a site of carbon storage. (wikipedia.org)
  • found
  • Mangrove forests are found in 118 countries and territories worldwide, 75% of mangrove vegetation zones are located in intertidal tropic and sub-tropic habitats situated between 25° N and 25° S . Typically surrounding salient river deltas, mangrove regions support a variety of halophytes. (wikipedia.org)
  • Marine
  • Part of the marine carbon cycle transforms carbon between non-living and living matter. (wikipedia.org)
  • Although the amount of carbon stored in marine biota (~3 Gt C) is very small compared with terrestrial vegetation (~610 GtC), the amount of carbon exchanged (the flux) by these groups is nearly equal - about 50 GtC each. (wikipedia.org)
  • Marine organisms link the carbon and oxygen cycles through processes such as photosynthesis. (wikipedia.org)
  • The marine carbon cycle is also biologically tied to the nitrogen and phosphorus cycles by a near-constant stoichiometric ratio C:N:P of 106:16:1, also known as the Redfield Ketchum Richards (RKR) ratio, which states that organisms tend to take up nitrogen and phosphorus incorporating new organic carbon. (wikipedia.org)
  • Based on the publications of NASA, World Meteorological Association, IPCC, and International Council for the Exploration of the Sea, as well as scientists from NOAA, Woods Hole Oceanographic Institute, Scripps Institute of Oceanography, CSIRO, and Oak Ridge National Laboratory, the human impacts on the marine carbon cycle are significant. (wikipedia.org)
  • Marine carbon is further separated into particulate and dissolved phases. (wikipedia.org)
  • biological
  • Based on the CARTS data, the amount of protected area in the Mixedwood Plains is the lowest of any of the terrestrial ecozone + in Canada and well below the Convention on Biological Diversity's target to protect 10% of each of the world's ecological regions. (biodivcanada.ca)
  • eastern
  • Hepatocellular carcinoma can account for up to 10% of adult deaths in some rural townships, such as He Zuo, in the Qidong region of eastern Jiangsu Province ( 2 ). (aacrjournals.org)
  • oxygen
  • Exploration and application ofnaturally-occurring isotopes, including actinide decay-series nuclides,cosmogenic 10Be, 26Al and 36Cl, andstable isotopes of oxygen and carbon, as time and property tracers in the ocean and onland. (usc.edu)
  • multiple
  • The carbon cycle is a result of many interacting forces across multiple time and space scales that circulates carbon around the planet, ensuring that carbon is available globally. (wikipedia.org)
  • amount
  • On November 22, 2016, NASA reported finding a large amount of underground ice in the Utopia Planitia region of Mars. (wikipedia.org)
  • physical
  • These pools are operationally defined by physical separation - dissolved carbon passes through a 0.2 μm filter, and particulate carbon does not. (wikipedia.org)