Results 51 to 60 of about 6,998,665 (296)
Spatial distribution of oxygen-18 and deuterium in stream waters across the Japanese archipelago [PDF]
Hydrology and Earth System Sciences, 2015 The spatial distribution of oxygen and hydrogen isotopic composition (δ18O and δ2H) of stream waters across Japan was clarified with a data set by compiling sample data obtained from 1278 forest catchments during the summer of 2003.
M. Katsuyama, T. Yoshioka, E. Konohira
doaj +1 more source
Liver organoids: modelling complexity in homeostasis and disease
FEBS Letters, EarlyView.Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley +1 more source
Oxygen supply and consumption in soilless culture: evaluation of an oxygen simulation model for cucumber [PDF]
, 2001 A soil oxygen simulation model (OXSI) was tested and evaluated for evaluating growing media with respect to aeration. In the model, local oxygen concentrations are calculated from coefficients of diffusion and consumption (respiration), assuming ...
Baas, R. +4 more
core +1 more source
Hydrochemical and isotope groundwater investigations in Sorško polje
Geologija, 2008 From the hydrogeological point of view Sorško polje area is a sink, filled with conglomerate,sandand gravel,where large quantities of groundwater are accumulated.
Brigita Jamnik, Janko Urbanc
doaj
Planetary fertility during the past 400 ka based on the triple isotope composition of O2 in trapped gases from the Vostok ice core [PDF]
Climate of the Past, 2012 The productivity of the biosphere leaves its imprint on the isotopic composition of atmospheric oxygen. Ultimately, atmospheric oxygen, through photosynthesis, originates from seawater.
J. C. von Fischer +3 more
doaj +1 more source
Epigenetic reprogramming of lineage switching in cancer
FEBS Letters, EarlyView.Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı +4 more
wiley +1 more source
GRIP Oxygen-18 of Atmospheric Oxygen
, 1999 GRIP Oxygen-18 of Atmospheric ...
A Fuchs (6980042) +3 more
core +2 more sources
The microbiome in human skin aging
FEBS Letters, EarlyView.Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana +3 more
wiley +1 more source
Spatial oxygen heterogeneity in a Hediste diversicolor irrigated burrow [PDF]
, 2011 The heterogeneity of oxygen distribution in a Hediste diversicolor burrow environment was investigated in a laboratory experiment using a 6-mm thick tank equipped with oxygen planar optodes. The twodimensional oxygen distribution in a complete burrow was
Franck Gilbert +11 more
core +1 more source
Journal of Hydrology and Hydromechanics, 2012 Príspevok syntetizuje dostupné údaje o izotopickom zložení zrážok na území Slovenska (Západné Karpaty). Hodnotí koreláciu hodnôt δ18O v kumulatívnych mesačných zrážkach z rokov 1988-1997 medzi jednotlivými stanicami, vplyv nadmorskej výšky, teploty ...
Holko Ladislav +3 more
doaj +1 more source