Results 41 to 50 of about 1,418,308 (344)

The reinvigoration of the Southern Ocean carbon sink [PDF]

open access: yes, 2015
Several studies have suggested that the carbon sink in the Southern Ocean—the ocean’s strongest region for the uptake of anthropogenic CO2 —has weakened in recent decades.
Bronte Tilbrook   +12 more
core   +3 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Enhancing Multi-Flight Unmanned-Aerial-Vehicle-Based Detection of Wheat Canopy Chlorophyll Content Using Relative Radiometric Correction

open access: yesRemote Sensing
Unmanned aerial vehicle (UAV) remote sensing has emerged as a powerful tool for precision agriculture, offering high-resolution crop monitoring capabilities.
Jiale Jiang, Qianyi Zhang, Shuai Gao
doaj   +1 more source

Dataset on green macroprudential regulations and instruments: Objectives, implementation and geographical diffusion

open access: yesData in Brief, 2019
The dataset presented in this article contains the data gathered when surveying existing “green” macroprudential regulations and instruments. Official central banks’ documents and acts, as well as financial institutions reports, have been considered.
Paola D'Orazio, Lilit Popoyan
doaj   +1 more source

Issues Related to Incorporating Northern Peatlands into Global Climate Models [PDF]

open access: yes, 2009
Northern peatlands cover ~3–4 million km2 (~10% of the land north of 45°N) and contain ~200–400 Pg carbon (~10–20% of total global soil carbon), almost entirely as peat (organic soil).
Frolking, Steve   +2 more
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Spatial differentiation characteristics and controlling factors of the epikarst thickness in Southwest China

open access: yesGeoderma
The epikarst, a critical link between surface and subsurface in karst regions, plays a vital role in regulating groundwater cycle, sustaining biogeochemical cycles, and securing water resources.
Jinke Chen   +12 more
doaj   +1 more source

Optimal operation of MEA-based post-combustion carbon capture for natural gas combined cycle power plants under different market conditions [PDF]

open access: yes, 2015
Carbon capture for fossil fuel power generation attracts an increasing attention in order to address the significant challenge of global climate change.
Luo, Xiaobo, Wang, Meihong
core   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

open access: yesFEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas   +3 more
wiley   +1 more source

Carbon footprint and water footprint of electric vehicles and batteries charging in view of various sources of power supply in the Czech Republic [PDF]

open access: yes, 2019
In the light of recent developments regarding electric vehicle market share, we assess the carbon footprint and water footprint of electric vehicles and provide a comparative analysis of energy use from the grid to charge electric vehicle batteries in ...
Burchart-Korol, Dorota   +2 more
core   +2 more sources

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