Results 91 to 100 of about 2,358,015 (296)

A simulation of suspension flow in an artificial porous medium [PDF]

open access: yesActa Montanistica Slovaca, 2006
The paper presents research results of a computer simulation of the suspension flow. One of the most difficult problems in petroleum industry is to optimally use different drilling fluids. It is usually a suspension interacting with a porous medium.
Dariusz Knez
doaj  

CALCULATION OF THE FILTRATION PROBLEM AT THE FILTER INLET

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2017
Filtration of the suspension in a porous medium with a geometric particle capture mechanism is con-sidered. The porous medium has an initial deposit unevenly distributed across the filter.
Ludmila I. Kuzmina, Yuri V. Osipov
doaj   +1 more source

Loss of AMBRA1 activates MAPK and angiogenesis signaling pathways in melanoma cells

open access: yesFEBS Open Bio, EarlyView.
Loss of AMBRA1 in melanoma cells activates multiple oncogenic pathways associated with tumor progression. Transcriptomic and protein network analyses revealed that AMBRA1 depletion enhances MAPK/ERK signaling, angiogenesis, TGF‐β/EMT signaling, and Wnt/axon guidance pathways.
Milad Ibrahim   +4 more
wiley   +1 more source

Calculation of the filtration at the porous medium outlet

open access: yesMATEC Web of Conferences, 2018
The study of fluid filtration with solid impurities in a porous medium is necessary for the construction of tunnels, hydraulic structures and underground storage of radioactive waste.
Osipov Yuri   +2 more
doaj   +1 more source

Importin 7 mediates the nuclear import of HIV‐1 integrase via a specific interacting interface

open access: yesFEBS Open Bio, EarlyView.
HIV‐1 integrase enables viral DNA integration into the host genome. By binding to the core domain of the host protein Importin 7 via its C‐terminal domain, the integrase is transported across the nuclear membrane into the nucleus, where integration of the viral genome into host DNA takes place. This translocation is a critical step for subsequent viral
Juana Bana   +5 more
wiley   +1 more source

Ionomycin suppresses cancer cell growth by disrupting mitochondrial transcription

open access: yesFEBS Open Bio, EarlyView.
In this study, we identify a new function for the selective Ca2+ ionophore, ionomycin, as an inhibitor of mitochondrial transcription. Both total and nascent RNA analyses revealed that ionomycin treatment reduces the transcription of mitochondrial genes.
Lishen Wang   +10 more
wiley   +1 more source

Identifying and characterising a plant GH1 β‐glucosidase that exhibits hydrolytic activity on N‐linked glucopyranoside

open access: yesFEBS Open Bio, EarlyView.
We report the first β‐glucosidase with demonstrated hydrolytic activity on an N‐linked glycopyranoside. The enzyme, native to maize, was biochemically characterised for this novel reaction, and structural modelling of the enzyme–substrate complex revealed several clues to the underlying reduced catalytic rate relative to its native O‐glycopyranoside ...
Hani Gharabli   +3 more
wiley   +1 more source

Revisiting the methods for gas permeability measurement in tight porous medium

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
Permeability is a key parameter to describe fluid transport properties of porous medium; however, the permeability measurement is extremely difficult for tight porous medium, e.g. fine-grained rock or dense soil.
Diansen Yang   +4 more
doaj   +1 more source

Effect of wind characteristics on gas dispersion in porous media

open access: yes, 2017
9th International Conference on Porous MediaGreenhouse gases have the key role in global warming. Soil is a source of greenhouse gases such as methane (CH4).
Wilkinson, Stephen
core   +3 more sources

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

open access: yesFEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen   +5 more
wiley   +1 more source

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