Results 61 to 70 of about 1,230,227 (332)

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Studying Hueckel Edge Detector Using Binary Step Edge Image

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2017
Hueckel edge detector study using binary step edge image is presented. The standard algorithm that Hueckel presented, in his paper without any alteration is adopted.
Hameed Majeed Abdul-jabbar   +3 more
doaj  

About Edge Detection in Digital Images [PDF]

open access: yesRadioengineering, 2018
Edge detection is one of the most commonly used procedures in digital image processing. In the last 30-40 years, many methods and algorithms for edge detection have been proposed.
M. Hagara, P. Kubinec
doaj  

AN EFFICIENT BRITWARI TECHNIQUE TO ENHANCE CANNY EDGE DETECTION ALGORITHM USING DEEP LEARNING

open access: yesICTACT Journal on Soft Computing, 2022
Artificial Intelligence edge detection refers to a set of mathematical techniques used to recognize digital image locations. The picture brightness plays a vital role in detecting dissimilarities and making decisions.
S Britto Ramesh Kumar, A Bhuvaneshwari
doaj   +1 more source

Unsupervised Learning of Edges

open access: yes, 2016
Data-driven approaches for edge detection have proven effective and achieve top results on modern benchmarks. However, all current data-driven edge detectors require manual supervision for training in the form of hand-labeled region segments or object ...
Dollár, Piotr   +3 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

Robust edge-detection algorithm for runway edge detection

open access: yesSPIE Proceedings, 2008
Fog and other poor visibility conditions hamper the visibility of runway surfaces and any obstacles present on the runway, potentially creating a situation where a pilot may not be able to safely land the aircraft. Assisting the pilot to land the aircraft safely in such conditions is an active area of research.
Swathi Tandra, Zia-ur Rahman
openaire   +3 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Tripwire Detection for Landmines [PDF]

open access: yes, 1998
Pre-processed Radon transform-based detection methods were identified as the most viable technique. There are some issues that arose when testing the various methods.
Budd, Chris, Stockie, John
core  

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