Results 71 to 80 of about 1,652,346 (296)

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

Finite Element Analysis of Voided Reinforced Concrete Slabs Enhanced by GFRP Sheets under Monotonic and Repeated Loads

open access: yesJournal of Engineering
Six (1000*1000 mm2) slab specimens were cast and tested as two-way simply supported slabs previously (three under monotonic loading and three under repeated loading) are used in this research.
Shahad H. Mtashar, Adel A. Al-Azzawi
doaj   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

open access: yesMolecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce   +11 more
wiley   +1 more source

Strength of welded joints in class A500C reinforcing bars under low-cycle repeated loads

open access: yesБудівельні конструкції. Теорія і практика
For more than 25 years now, A500C class reinforcement has been the most widely used in reinforced concrete structures. The introduction of class A500C reinforcement has been accompanied by extensive research into its mechanical properties, bond with ...
Yulii Klymov
doaj   +1 more source

Experimental and modelling buckling of wood-based columns under repeated loading

open access: yesEPJ Web of Conferences, 2010
Collapse of timber constructions can appear under the effect of load that exceeds the resistance of a carrying element or under the effect of a geometrical instability like buckling.
Nafa Z., Chaplain M., Bouras F.
doaj   +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

Steering vector errors and diagonal loading [PDF]

open access: yes, 2004
Diagonal loading is one of the most widely used and effective methods to improve robustness of adaptive beamformers. In this paper, we consider its application to the case of steering vector errors, i.e.
Besson, Olivier, Vincent, François
core   +1 more source

Circular RNA expression landscapes in myelodysplastic neoplasms: Associations with mutational signatures and disease progression

open access: yesMolecular Oncology, EarlyView.
In this explorative study, the abundance of circular RNA molecules in bone marrow stem cells was found to be elevated in patients with high‐risk myelodysplastic neoplasms, and to be associated with an increased risk of progression to acute myeloid leukemia.
Eileen Wedge   +17 more
wiley   +1 more source

Experimental Research on Breakage Characteristics of Feed Pellets under Different Loading Methods

open access: yesAgriculture
Particle breakage is a common phenomenon during the processes of production, storage, and transportation. Because of the requirements for pellet integrity in poultry farming, research on the breakage characteristics of feed pellets is necessary.
Xianrui Kong, Qing Cao, Zhiyou Niu
doaj   +1 more source

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