Results 61 to 70 of about 1,386,588 (292)
Improving the Satellite-Based Winter Wheat Monitoring by Using UAV-Derived Leaf Chlorophyll Content
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingMapping regional leaf chlorophyll content (LCC) still faces challenges of the scale mismatch between ground sampling points and satellite pixels. To improve the satellite-based model, this study explored the potential of using high-resolution unmanned ...
Jiale Jiang +4 more
doaj +1 more source
Extreme drought–accelerated dissolved carbon metabolism triggers pulsed CO2 outgassing in karst lakes [PDF]
Hydrology and Earth System SciencesKarst aquatic ecosystems are important reservoirs of dissolved carbon (C), supporting dynamic CO2 fluxes through the biological C pump. However, our current understanding of how sophisticated interactions between aquatic microbiomes and dissolved C ...
M. Ni +8 more
doaj +1 more source
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source
Aspects of forest biomass in the earth system: Its role and major unknowns
, 2019 Forests are a major and diverse land cover occupying a third of the terrestrial vegetated surface; they store 50 to 65% of terrestrial organic carbon (including the soil) and contribute half to terrestrial productivity. Forest biomass stores close to 80%
Carvalhais, N., Reichstein, M.
core +1 more source
Molecular Oncology, EarlyView.This work identified serum proteins associated with pancreatic epithelial neoplasms (PanINs) and early‐stage PDAC. Proteomics screens assessed genetically engineered mice with abundant PanINs, KPC mice (Lox‐STOP‐Lox‐KrasG12D/+ Lox‐STOP‐Lox‐Trp53R172H/+ Pdx1‐Cre) before PDAC development and also early‐stage PDAC patients (n = 31), compared to benign ...
Hannah Mearns +10 more
wiley +1 more source
Terrestrial Carbon Cycle Variability [PDF]
F1000Research, 2016 A growing literature is reporting on how the terrestrial carbon cycle is experiencing year-to-year variability because of climate anomalies and trends caused by global change. As CO2 concentration records in the atmosphere exceed 50 years and as satellite records reach over 30 years in length, we are becoming better able to address carbon cycle ...
Baldocchi, Dennis +2 more
openaire +4 more sources
E2A selectively regulates TGF‐β–induced apoptosis in KRAS‐mutant non‐small cell lung cancer
Molecular Oncology, EarlyView.Ability to induce apoptosis by TGF‐β is frequently lost in advanced lung adenocarcinoma despite intact TGF‐β signaling. We identify E2A as a mutant KRAS–dependent mediator of resistance to TGF‐β–induced apoptosis. TGF‐β induces E2A via SMAD3 in mutant KRAS cells, and E2A silencing restores apoptosis and enhances radiation response in cell lines ...
Sergei Chuikov +3 more
wiley +1 more source
Global Wetland Methane Emissions From 2001 to 2020: Magnitude, Dynamics and Controls
Earth's FutureThe large uncertainties in estimating CH4 emissions from wetland ecosystems, the leading natural source to the atmosphere, substantially hinder the quantification of the global CH4 budget.
Han Xiao +6 more
doaj +1 more source
Response of carbon- and water-use efficiency to climate change and human activities in China
Ecological IndicatorsCarbon-use efficiency (CUE) and water-use efficiency (WUE) are critical parameters for evaluating the exchange of carbon and water in ecosystems, influenced by climate change and human activities.
Jinke Chen +3 more
doaj +1 more source
More frequent burning increases vulnerability of Alaskan boreal black spruce forests
Environmental Research Letters, 2016 Much recent research has investigated the effects of burning on mature black spruce ( Picea mariana ) forests in interior Alaska, however little research has focused on how frequent reburning affects soil organic layer (SOL) vulnerability in these ...
Elizabeth E Hoy +2 more
doaj +1 more source