Results 61 to 70 of about 2,139,344 (304)
Trophic structure in a seabird host-parasite food web: insights from stable isotope analyses [PDF]
, 2010 Ecological studies on food webs rarely include parasites, partly due to the complexity and dimensionality of host-parasite interaction networks. Multiple co-occurring parasites can show different feeding strategies and thus lead to complex and cryptic ...
Gómez-Díaz Elena +3 more
core +1 more source
Frontiers in NutritionPurpose of reviewThis study aimed to discuss the use of the pulse stable isotope tracer approach to study changes in metabolism in healthy individuals and critically ill patients.Recent findings and conclusionWe found that in the postabsorptive state and
Nicolaas E. P. Deutz +1 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg +6 more
wiley +1 more source
Lubricants, 2022 Because of the impact of lubrication on the efficiency and the lifecycle cost and emissions, the lubricating-oil consumption (LOC) is one of the key indicators in the research and development of internal combustion engines.
Martin Vareka +4 more
doaj +1 more source
Stable Calcium Isotopes as Tracers in Studies of Mineral Metabolism [PDF]
Acta Orthopaedica Scandinavica, 1965 (1965). Stable Calcium Isotopes as Tracers in Studies of Mineral Metabolism. Acta Orthopaedica Scandinavica: Vol. 36, No. sup78, pp. 3-86.
openaire +2 more sources
Stable cerium isotopes as a tracer of oxidation reactions
Geochemical Perspectives Letters, 2023 Redox conditions in past oceans have attracted significant interest and many proxies have been used to probe redox changes through time. For example, the redox dependent behaviour of Ce, resulting in negative or positive elemental Ce anomalies, has been widely used.
Bonnand, Pierre +2 more
openaire +3 more sources
The use of the stable oxygen isotope (18O) to trace the distribution and uptake of water in riparian woodlands [PDF]
, 2002 Streamside vegetation forming narrow "corridors" in temperate regions, is typically dominated by deciduous tree species reflecting strong influences by human activities.
Lambs, L. +5 more
core +1 more source
Advanced Functional Materials, EarlyView.USe3 is introduced as an actinide van der Waals semiconductor that mirrors the quasi‐one‐dimensional physics of transition‐metal trichalcogenides. Polarization‐resolved Raman spectroscopy on exfoliated flakes maps strong in‐plane phonon anisotropy and strain‐tunable mode shifts.
Aljoscha Söll +17 more
wiley +1 more source
Data in Brief, 2018 We present four datasets that provide information on primary production, nitrogen (N) uptake and allocation in two salt marsh grasses, short-form Spartina alterniflora and Distichlis spicata.
Troy D. Hill +4 more
doaj +1 more source
Metabolic Flux Analysis—Linking Isotope Labeling and Metabolic Fluxes
Metabolites, 2020 Metabolic flux analysis (MFA) is an increasingly important tool to study metabolism quantitatively. Unlike the concentrations of metabolites, the fluxes, which are the rates at which intracellular metabolites interconvert, are not directly measurable ...
Yujue Wang +4 more
doaj +1 more source