Results 71 to 80 of about 4,183,748 (324)

Adaptive probabilities of crossover and mutation in genetic algorithms

IEEE Transactions on Systems, Man and Cybernetics, 1994
In this paper we describe an efficient approach for multimodal function optimization using genetic algorithms (GAs). We recommend the use of adaptive probabilities of crossover and mutation to realize the twin goals of maintaining diversity in the ...
M. Srinivas, L. Patnaik
semanticscholar   +1 more source

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

FEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source

Social context prevents heat hormetic effects against mutagens during fish development

FEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere, Claudio Silva De Freitas, Adam Bates, Kenneth B. Storey, Pedro Beltran‐Alvarez, Katharina C. Wollenberg Valero   +5 more
wiley   +1 more source

A cellular system to study responses to a collision between the transcription complex and a protein‐bound nick in the DNA template

FEBS Letters, EarlyView.
We present the cellular transcription‐coupled Flp‐nick system allowing the introduction of a Top1‐mimicking cleavage complex (Flpcc) at a Flp recognition target site within a controllable LacZ gene. LacZ transcription leads to the collision of RNA polymerase II (RNAPII) with Flpcc, and this causes RNAPII stalling, ubiquitination, and degradation.
Petra Herring, Morten Roedgaard, Camilla Myrup Holst, Helene Christensen, Birgitta R. Knudsen, Lotte Bjergbaek, Anni Hangaard Andersen   +6 more
wiley   +1 more source

Ion channel function of polycystin‐2/polycystin‐1 heteromer revealed by structure‐guided mutagenesis

FEBS Letters, EarlyView.
Mutations in polycystin‐1 (PC1) or polycystin‐2 (PC2) cause autosomal‐dominant polycystic kidney disease (ADPKD). We generated a novel gain‐of‐function PC2/PC1 heteromeric ion channel by mutating pore‐blocking residues. Moreover, we demonstrated that PC2 will preferentially assemble with PC1 to form heteromeric complexes when PC1 is co‐expressed ...
Tobias Staudner, Juthamas Khamseekaew, M. Gregor Madej, Linda Geiges, Bardha Azemi, Christine Ziegler, Christoph Korbmacher, Alexandr V. Ilyaskin   +7 more
wiley   +1 more source

Phenotypic diversity in mutagenized population of urdbean (Vigna mungo (L.) Hepper)

Heliyon, 2021
The present study was conducted to assess the extent of induced genetic variability and to determine the inheritance pattern of various yield contributing phenotypic traits in M2 and M3 generations of urdbean following mutagenesis with single and ...
Sonu Goyal, Mohammad Rafiq Wani, Aamir Raina, Rafiul Amin Laskar, Samiullah Khan   +4 more
doaj  

Decoding the dual role of autophagy in cancer through transcriptional and epigenetic regulation

FEBS Letters, EarlyView.
Transcriptional and epigenetic regulation controls autophagy, which exerts context‐dependent effects on cancer: Autophagy suppresses tumorigenesis by maintaining cellular homeostasis or promotes tumor progression by supporting survival under stress. In this “In a Nutshell” article, we explore the intricate mechanisms of the dual function of autophagy ...
Young Suk Yu, Ik Soo Kim, Sung Hee Baek
wiley   +1 more source

An adaptive mutation operator for particle swarm optimization [PDF]

, 2008
Copyright @ 2008 MICParticle swarm optimization (PSO) is an effcient tool for optimization and search problems. However, it is easy to betrapped into local optima due to its in-formation sharing mechanism.
Korejo, I, Li, C, Yang, S
core  

The Differential Role of Human Cationic Trypsinogen (PRSS1) p.R122H Mutation in Hereditary and Nonhereditary Chronic Pancreatitis: A Systematic Review and Meta-Analysis. [PDF]

, 2017
Background:Environmental factors and genetic mutations have been increasingly recognized as risk factors for chronic pancreatitis (CP). The PRSS1 p.R122H mutation was the first discovered to affect hereditary CP, with 80% penetrance.
Deng, Lihui, Hu, Cheng, Lugea, Aurelia, Pandol, Stephen J, Su, Hsin-Yuan, Waldron, Richard T, Wen, Li, Xia, Qing, Zhang, Chenlong   +8 more
core   +3 more sources

Timing the initiation of multiple myeloma

Nature Communications, 2020
The initial mutational processes and how these lead to progression in multiple myeloma (MM) are unclear. Here, the authors identify mutational signatures that occur over time in a large cohort of MM patients and suggest features that may help in early ...
Even H. Rustad, Venkata Yellapantula, Daniel Leongamornlert, Niccolò Bolli, Guy Ledergor, Ferran Nadeu, Nicos Angelopoulos, Kevin J. Dawson, Thomas J. Mitchell, Robert J. Osborne, Bachisio Ziccheddu, Cristiana Carniti, Vittorio Montefusco, Paolo Corradini, Kenneth C. Anderson, Philippe Moreau, Elli Papaemmanuil, Ludmil B. Alexandrov, Xose S. Puente, Elias Campo, Reiner Siebert, Herve Avet-Loiseau, Ola Landgren, Nikhil Munshi, Peter J. Campbell, Francesco Maura   +25 more
doaj   +1 more source