Results 21 to 30 of about 4,966,010 (287)

Australian climate-carbon cycle feedback reduced by soil black carbon [PDF]

open access: yes, 2008
Annual emissions of carbon dioxide from soil organic carbon are an order of magnitude greater than all anthropogenic carbon dioxide emissions taken together1.
Jan Skjemstad   +20 more
core   +1 more source

Contents of black carbon in some surface dusts from Zhejiang Province

open access: yes浙江大学学报. 农业与生命科学版, 2012
To understand the effects of human activity on accumulation of black carbon in surface dusts, 174 of surface dust samples were collected from Zhejiang Province. The surface dust samples were taken from different areas which included indoor in countryside,
HUANG Jia-ming   +3 more
doaj   +1 more source

Effect of carbon black content on the microwave absorbing properties of CB/epoxy composites [PDF]

open access: yesJournal of Nanostructures, 2016
To prevent serious electromagnetic interference, a single-layer and double layer wave-absorbing coating employing complex absorbents composed of carbon black with epoxy resin as matrix was prepared. The morphologies of carbon black /epoxy composites were
Pourya Mehdizadeh, Hasan Jahangiri
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

Dissolved black carbon in Antarctic lakes: Chemical signatures of past and present sources

open access: yesGeophysical Research Letters, 2016
The perennially ice‐covered, closed‐basin lakes in the McMurdo Dry Valleys, Antarctica, serve as sentinels for understanding the fate of dissolved black carbon from glacial sources in aquatic ecosystems.
Alia L. Khan   +3 more
doaj   +1 more source

Smaller is better: nanobodies meet NMR

open access: yesFEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

Source-sink processes of marine black carbon in the context of "carbon neutrality"

open access: yes地质科技通报
Objective Black carbon is a carbonaceous mixture formed by the incomplete combustion of biomass and fossil fuels. Since black carbon has a high carbon content and an aromatized molecular structure, it can persist in the natural environment, suggesting ...
Cuimei XIA   +5 more
doaj   +1 more source

Isotopes in pyrogenic carbon: a review [PDF]

open access: yes, 2012
Pyrogenic carbon (PC; also known as biochar, charcoal, black carbon and soot) derived from natural and anthropogenic burning plays a major, but poorly quantified, role in the global carbon cycle.
Michael I. Bird   +5 more
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular 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

Microstructure and tensile properties of magnesium nanocomposites fabricated using magnesium chips and carbon black

open access: yesJournal of Magnesium and Alloys, 2020
In this study, carbon black (0, 0.01, 0.03 and 0.08 wt%) and AZ31 (Mg–3Al–1Zn) magnesium chips were used to fabricate carbon black-reinforced magnesium matrix composites with extrusion or a combination of extrusion and high-ratio differential speed ...
T.J. Lee, W.J. Kim
doaj   +1 more source

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