Results 11 to 20 of about 3,006,553 (325)
Concordance and Mutation [PDF]
Geometry & Topology, 2001 We provide a framework for studying the interplay between concordance and positive mutation and identify some of the basic structures relating the two. The fundamental result in understanding knot concordance is the structure theorem proved by Levine ...
Atiyah +34 more
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Are There Mutator Polymerases? [PDF]
The Scientific World JOURNAL, 2003 DNA polymerases are involved in different cellular events, including genome replication and DNA repair. In the last few years, a large number of novel DNA polymerases have been discovered, and the biochemical analysis of their properties has revealed a long list of intriguing features.
García Díaz, Miguel +4 more
openaire +6 more sources
Fushe yanjiu yu fushe gongyi xuebao, 2023 To explore the effects of absorbed dose and particle size on enzymatic hydrolysis and fermentation of reed straws (Phragmites australias), the straws were irradiated with γ-ray irradiation at different doses (0-500 kGy) and then passed through different ...
QI Hui +7 more
doaj +1 more source
The genetic equidistance result of molecular evolution is independent of mutation rates [PDF]
, 2008 The well-established genetic equidistance result shows that sister species are approximately equidistant to a simpler outgroup as measured by DNA or protein dissimilarity.
Shi Huang
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Fushe yanjiu yu fushe gongyi xuebao, 2023 We used 60Co-γ ray and electron beam irradiation to mutate Bacillus velezensis to breed genetically stable mutant strains. The mutant strains were screened and re-screened by plate confrontation and the four-point method to study their antibacterial ...
XIE Hui +9 more
doaj +1 more source
Fushe yanjiu yu fushe gongyi xuebao, 2023 The study investigated the chemical composition, supramolecular structures, particle size distribution, and enzymatic efficiency of Phragmites australis lignocelluloses (PALs) with different moisture contents and treatment with 5 MeV electron beam ...
CHEN Liang +7 more
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Generalized Hybrid Evolutionary Algorithm Framework with a Mutation Operator Requiring no Adaptation [PDF]
, 2017 This paper presents a generalized hybrid evolutionary optimization structure that not only combines both nondeterministic and deterministic algorithms on their individual merits and distinct advantages, but also offers behaviors of the three originating ...
Chan, Lipton +4 more
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Fushe yanjiu yu fushe gongyi xuebao, 2022 In this study, Triarrhena lutarioriparia was irradiated by a 5 MeV electron accelerator. The effects of temperature, formic acid concentration, and absorbed dose on the separation efficiency of cellulose from Triarrhena lutarioriparia were investigated ...
WANG Danyang +6 more
doaj +1 more source
Use of the q-Gaussian mutation in evolutionary algorithms [PDF]
, 2010 Copyright @ Springer-Verlag 2010.This paper proposes the use of the q-Gaussian mutation with self-adaptation of the shape of the mutation distribution in evolutionary algorithms.
A Obuchowicz +28 more
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Are Protein Shape-Encoded Lowest-Frequency Motions a Key Phenotype Selected by Evolution?
Applied Sciences, 2023 At the very deepest molecular level, the mechanisms of life depend on the operation of proteins, the so-called “workhorses” of the cell. Proteins are nanoscale machines that transform energy into useful cellular work, such as ion or nutrient transport ...
Laura Orellana
doaj +1 more source