Results 61 to 70 of about 10,209,746 (308)

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

Noise: towards a definition [PDF]

open access: yes
The research aims to explore the perceptual affects of noise on the relationship between performers, their instruments and listeners. The portfolio of compositions and accompanying thesis demonstrates the results of this treatment of sound and space ...
Riley, Thomas Richard
core   +2 more sources

A novel pulse-current waveform circuit for low-energy consumption and low-noise transcranial magnetic stimulation

open access: yesFrontiers in Neuroscience
IntroductionTranscranial magnetic stimulation (TMS) is widely used for the noninvasive activation of neurons in the human brain. It utilizes a pulsed magnetic field to induce electric pulses that act on the central nervous system, altering the membrane ...
Xinhua Tan   +5 more
doaj   +1 more source

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

open access: yesFEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source

Low-discrepancy blue noise sampling [PDF]

open access: yesACM Transactions on Graphics, 2016
We present a novel technique that produces two-dimensional low-discrepancy (LD) blue noise point sets for sampling. Using one-dimensional binary van der Corput sequences, we construct two-dimensional LD point sets, and rearrange them to match a target spectral profile while preserving their low discrepancy.
Abdalla G. M. Ahmed   +7 more
openaire   +4 more sources

Airfoil noise reductions through leading edge serrations [PDF]

open access: yes, 2015
This paper provides an experimental investigation into the use of leading edge (LE) serrations as a means of reducing the broadband noise generated due to the interaction between the aerofoil’s LE and impinging turbulence.
Joseph, P.F.   +14 more
core   +1 more source

Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization

open access: yesMolecular Oncology, EarlyView.
In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu   +13 more
wiley   +1 more source

A Two-Step A/D Conversion and Column Self-Calibration Technique for Low Noise CMOS Image Sensors

open access: yesSensors, 2014
In this paper, a 120 frames per second (fps) low noise CMOS Image Sensor (CIS) based on a Two-Step Single Slope ADC (TS SS ADC) and column self-calibration technique is proposed.
Jaeyoung Bae   +4 more
doaj   +1 more source

A low‐noise current‐reused CMOS active inductor by exploiting Gm‐boosting technique

open access: yesIET Microwaves, Antennas & Propagation, 2021
This work introduces a new low‐noise current‐reused CMOS active inductor (AI) based on Gyrator‐C configuration. In the proposed AI, a simple common‐source amplifier is utilised for boosting effective Gm and improving noise performance of the AI.
Abdollah Sabbaghi, Emad Ebrahimi
doaj   +1 more source

A low noise cascode amplifier

open access: yesJournal of Research of the National Bureau of Standards, 1987
We describe the design, schematics, and performance of a very low noise FET cascode input amplifier. This amplifier has noise performance of less than [Formula: see text] and 0.25 [Formula: see text] over the 500 Hz to 50 kHz frequency range. The amplifier is presently being used in conjunction with a Penning ion trap but is applicable to a wide ...
Jefferts, Steven R., Walls, F. L.
openaire   +1 more source

Home - About - Disclaimer - Privacy