Results 31 to 40 of about 2,105,092 (295)
Diversity, 2020 The input of new nutrients by upwelling in shelf waters, and the associated carbon and nitrogen fluxes, can be traced by their stable isotope signatures in organic matter.
Antonio Bode +2 more
doaj +1 more source
Centrifugal Separation of Carbon Isotopes Using Heptafluoropropane as Processing Gas
Journal of Isotopes, 2020 The demand for stable isotopes has increased in the field of medical diagnosis, biopharming, quantum communication and so on. Natural carbon has two stable isotopes: 12C (98.89%) and 13C (1.11%). 13C in high abundance is mainly used in tracer field.
SUN Qiming;JIAN Conghui;ZHOU Mingsheng;PEI Gen
doaj +1 more source
Frontiers in Environmental Science, 2022 Lakes are currently responsible for a significant amount of total natural methane emission. Microbial oxidation of methane plays a central role in Arctic carbon cycling, potentially reducing methane emissions from lakes, though little is known about ...
Sarah B. Cadieux +6 more
doaj +1 more source
Conduits of contamination to contemporary food webs of the Norfolk Broads [PDF]
, 2011 PhDDuring the 1960s-1980s antifouling applications containing the organotin tributyltin (TBT) were applied to craft on the Norfolk Broads, leaving a legacy of contaminants in sediments.
Laws, Jacob
core +4 more sources
Ecosphere, 2021 Tracing the flow of dietary energy sources, especially in systems with a high degree of omnivory, is an ongoing challenge in ecology. In aquatic systems, one of the persistent challenges is in differentiating between autochthonous and allochthonous ...
Ariana M. Chiapella +2 more
doaj +1 more source
EXOTIC STRUCTURE OF CARBON ISOTOPES [PDF]
Frontiers of Collective Motions, 2003 31 pages, 19 eps ...
Suzuki, Toshio +2 more
openaire +2 more sources
Radiocarbon reservoir effects in human bone collagen from northern Iceland [PDF]
, 2012 Human bone collagen from a series of Icelandic human pagan graves was radiocarbon (14C) dated to aid understanding of early settlement (landnám) chronologies in northern Iceland. These individuals potentially consumed marine protein.
Dugmore, A.J. +8 more
core +1 more source
Petroleum Research, 2017 Carbon and oxygen isotopes of marine carbonate rocks or fossil shells could indicate global sea-level relative change. Generally, heavier carbon isotopes or lighter oxygen isotopes reflected rise of global sea-level relative changes, and vice versa.
Zongju Zhao, Jianguo Wang, Peixi Wang
doaj +1 more source
Research Progress on Spatiotemporal Distribution Characteristics of Carbon Stable Isotopes in Wines from New and Old World Countries [PDF]
Shipin Kexue, 2023 With the continuous development of economic globalization, the production and consumption of wine in New and Old World countries have shown a steady growth trend. Wines of different grades and styles have been developed, which are related to geographical
MA Yanfei, SU Yingyue, WANG Lishan, QI Pengyu, KANG Tianhao, WANG Li, MA Haiyan, XU Guoqian, ZHANG Ang
doaj +1 more source
Seasonally resolved growth of freshwater bivalves determined by oxygen and carbon isotope shell chemistry [PDF]
, 2010 By means of a monitoring experiment in two rivers in the Netherlands, we establish a relationship between seasonally resolved growth rates in unionid freshwater bivalves and their environment.
Dick Kroon +18 more
core +2 more sources