Results 41 to 50 of about 249,220 (266)

Use of mineral magnetic concentration data as a particle size proxy: a case study using marine, estuarine and fluvial sediments in the Carmarthen Bay area, South Wales, U.K. [PDF]

open access: yes, 2007
Compositional (non-magnetic) data can correlate strongly with particle size, which deems it appropriate as a particle size proxy and, therefore, a reliable means of normalising analytical data for particle size effects.
Walden, John   +3 more
core   +1 more source

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

open access: yesFEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez   +2 more
wiley   +1 more source

Analysis on intelligent upgrading and transformation of seismic stations in Hebei Province

open access: yes地震科学进展
With the increasing number of earthquake stations and scaling up of unmanned stations, the traditional operation and maintenance mode of stations is facing various challenges such as frequent power supply, communication, and instrument failures.
Qin Tian, Kainan Chen, Pengjie Zhang
doaj   +1 more source

Bioaccumulation of PCBs and PBDEs in Fish from a Tropical Lake Chapala, Mexico

open access: yesToxics, 2021
Lake Chapala is the largest natural freshwater reservoir in Mexico and the third largest lake in Latin America. Lakes are often considered the final deposit of polluting materials; they can be concentrated in the organisms that inhabit them, the water ...
Ernesto Oregel-Zamudio   +4 more
doaj   +1 more source

Distribution and origin of lead in stream sediments from small agricultural catchments draining Miocene molassic deposits (SW France) [PDF]

open access: yes, 2009
Total Pb concentrations and isotopic composition were determined in stream-bed sediments and bedrock from 29 small agricultural or forested catchments in the Gascogne area (SW France). The contribution of Pb from various natural and anthropogenic sources
Probst, Jean-Luc   +3 more
core   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

DIATOM COMPLEXES OF THE IMANDRA LAKE SEDIMENTS IN THE AREA AFFECTED BY HEATED WATER FROM THE KOLA NUCLEAR POWER PLANT

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
Diatom assemblages in Lake Imandra sediments (Kola Peninsula) were investigated in the area affected by heated discharges from the Kola NPP. Diatoms responses to the environmental changes were analyzed; the main stages in the lake ecosystem development ...
Dmitry Denisov   +2 more
doaj   +1 more source

Transient Electromagnetic (TEM) Surveys as a First Approach for Characterizing a Regional Aquifer: The Case of the Saint-Narcisse Moraine, Quebec, Canada

open access: yesGeosciences, 2021
Geological contexts that lack minimal stratigraphic and piezometric information can be challenging to produce an initial hydrogeological map in remote territories.
Yan Lévesque   +2 more
doaj   +1 more source

Fate of metals in coastal sediments of a Mediterranean flood-dominated system: An approach based on total and labile fractions [PDF]

open access: yes, 2011
The dynamics of sediment-bound metals (Cs, Cu, Ni, Pb, Ti and Zn) were studied off the Têt River (western Gulf of Lion), a typical Mediterranean coastal river punctuated by short and violent flash-floods.
Buscail, Roselyne   +20 more
core   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy