Results 71 to 80 of about 723,628 (294)

Chameleon fragmentation [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2014
A scalar field dark energy candidate could couple to ordinary matter and photons, enabling its detection in laboratory experiments. Here we study the quantum properties of the chameleon field, one such dark energy candidate, in an "afterglow" experiment designed to produce, trap, and detect chameleon particles.
Brax, Philippe, Upadhye, Amol
openaire   +2 more sources

Translophagy—A potential link between autophagy impairment and translational errors

open access: yesFEBS Letters, EarlyView.
Neurodegenerative diseases are characterised by the accumulation of abnormal proteins and protein aggregates, but their origin often remains unknown. We propose that selective autophagy removes damaged protein‐making machinery, preventing errors during protein synthesis.
Mykola V. Korolchuk   +11 more
wiley   +1 more source

Gains from Fragmentation at the Firm Level: Evidence from Japanese Multinationals in East Asia [PDF]

open access: yes
The unprecedented development of production networks in East Asia has been investigated, both theoretically and empirically, employing the conceptual framework of fragmentation theory and its extensions.
Toshiyuki Matsuura   +2 more
core   +2 more sources

Investigation of an object-detection approach for estimating the rock fragmentation in the open-pit conditions

open access: yesКомпьютерная оптика
Optimization of open-pit mining is one of significant tasks to date, with the blasting quality estimation being a key factor. The blasting quality is determined through evaluating the number of fragments and block size distribution, the so-called ...
K. Reshetnikov, M. Ronkin , S. Porshnev
doaj   +1 more source

‘Guide and Prejudice’— How Argonautes recognize targets across domains of life

open access: yesFEBS Letters, EarlyView.
Argonaute proteins use short nucleic‐acid guides to locate and regulate specific targets across all domains of life. Despite striking diversity—from human gene silencing to bacterial immune defence—all Argonautes share a conserved three‐stage recognition logic: guide‐directed sampling, progressive target pairing with a conformational checkpoint and ...
Jack P. K. Bravo
wiley   +1 more source

Spatio-temporal variation in snow cover area and its fragmentation in Northeast China

open access: yesFrontiers in Earth Science
Under the backdrop of climate warming and changes in snow cover area, the spatial fragmentation characteristics of snow cover need to be studied in depth.
Jiakai Gu   +7 more
doaj   +1 more source

Fragmentation, Orality and Magic Realism in Kezilahabi's Novel Nagona

open access: yesNordic Journal of African Studies, 2003
This article is a response to Gromov's article entitled Nagona and Mzingile: Novel, Tale or Parable? Contrary to Gromov's thesis on the structural ambiguity of the novel, we posit that the structure of this novel is discernible if we consider the ...
Said A. M. Khamis
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Can Hediste diversicolor Speed Up the Breakdown of Cigarette Butts in Marine Sediments?

open access: yesApplied Sciences
Cigarette butts (CBs) are non-biodegradable harmful residues of synthetic origin and are widespread in marine environments around the world. Although environmental factors are often primarily responsible for the fragmentation of microplastics in the ...
Mercedes Conradi   +3 more
doaj   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

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