Results 51 to 60 of about 377,749 (305)
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012 Abstract River history is reflected in the nature of the sediments carried and deposited over time. Using examples drawn from around the world, this account illustrates how river sediments have been used to reconstruct past environmental changes at a variety of scales in time and space.
openaire +3 more sources
FEBS Letters, EarlyView.Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante +10 more
wiley +1 more source
Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry
FEBS Letters, EarlyView.EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri +5 more
wiley +1 more source
Single Curved Fiber Sedimentation Under Gravity
, 2008 Dynamics of single curved fiber sedimentation under gravity are simulated by using the lattice Boltzmann method. The results of migration and rotation of the curved fiber at different Reynolds numbers are reported.
Scott T +5 more
core +2 more sources
Barking up the right tree: ecological insights into the microbiome of bald cypress tree bark
Environmental MicrobiomeBackground Trees and their associated microbes provide numerous ecosystem services including carbon sequestration, nutrient cycling and phytoremediation. Tree bark represents a large and seasonably stable habitat for microbial communities.
Damien E. Barrett +4 more
doaj +1 more source
Sedimentation in Lake Biel, an eutrophic, hard-water lake in northwestern Switzerland [PDF]
, 1980 A 2-year study of sedimentation in Lake Biel reveals that three major factors can account for the spatial and temporal patterns of tripton sedimentation. Allochthonous inputs of particulate matter mostly derived from the Aare river during spring snowmelt
Wright, Richard F. +3 more
core +1 more source
Sedimentation of Reservoirs [PDF]
, 2013 S waves are seismic body waves meaning they travel through the Earth's interior. Their velocity is slower thant that of P waves, and they are normally the second major phase to be observed on a seismorgram, and are therefore also referred to as secondary waves.
openaire +1 more source
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
The impact of tillage row orientation on physical and chemical sediment enrichment
Agrosystems, Geosciences & Environment, 2020 This study aimed to better understand how tillage row orientation with respect to dominant flow‐pathway along hillslope impacts runoff and the transport of different sediment size fractions. Experimental plots were constructed in contour ridge till (CRT)
Kenneth M. Wacha +7 more
doaj +1 more source