Results 21 to 30 of about 9,881 (262)

Relationship Between G-Quadruplex Sequence Composition in Viruses and Their Hosts

open access: yesMolecules, 2019
A subset of guanine-rich nucleic acid sequences has the potential to fold into G-quadruplex (G4) secondary structures, which are functionally important for several biological processes, including genome stability and regulation of gene expression ...
Emilia Puig Lombardi   +2 more
doaj   +1 more source

Homologous recombination risk in baculovirus expression vector system

open access: yesVirus Research, 2022
The baculovirus expression vector system (BEVS) is widely used for producing recombinant proteins. To achieve high expression level of recombinant proteins, baculoviral elements, such as enhancers, promoters, signal peptide coding sequences and 3′-UTR ...
Jianan Huang, Huanlei Liu, Xiaodong Xu
doaj   +1 more source

Technique for Fixation of Semitendinosus to the Patella in Patellar Tendon Reconstruction

open access: yesArthroscopy Techniques, 2020
Chronic patellar tendon injuries are rare yet challenging to treat. Timing of surgery and graft choices are debatable. Many techniques and methods of fixation have been described with pros and cons.
Ahmed Abdel-Aziz, M.Sc., M.D.   +4 more
doaj   +1 more source

Harnessing a Refinement Theory to Compute Loop Functions

open access: yesElectronic Notes in Theoretical Computer Science, 2009
AbstractWe consider a while loop on some space S and we are interested in deriving the function that this loop defines between its initial states and its final states (when it terminates). Such a capability is useful in a wide range of applications, including reverse engineering, software maintenance, program comprehension, and program verification. In
Ali Mili 0001   +3 more
openaire   +1 more source

Improved Sampled-Data Asynchronous Control for T-S Fuzzy Systems by Fuzzy Line Integral and Looped Functional

open access: yesIEEE Access
The sampled-data asynchronous control problem for T-S fuzzy systems is investigated in this paper. Firstly, a new fuzzy Lyapunov functional that contains the fuzzy line integral function and an improved looped functional is constructed, in which two new ...
Zongming Yin, Weihua Zhang
doaj   +1 more source

Arabidopsis PCH2 Mediates Meiotic Chromosome Remodeling and Maturation of Crossovers. [PDF]

open access: yesPLoS Genetics, 2015
Meiotic chromosomes are organized into linear looped chromatin arrays by a protein axis localized along the loop-bases. Programmed remodelling of the axis occurs during prophase I of meiosis.
Christophe Lambing   +10 more
doaj   +1 more source

Stability and Stabilization of Sampled-Data Systems via Inter-Sample State Prediction

open access: yesIEEE Access
This paper investigates improved stability and stabilization criteria for sampled-data systems by explicitly incorporating inter-sample state prediction. Unlike most existing studies, which rely on the conventional zero-order hold and thereby neglect the
Khanh Hieu Nguyen
doaj   +1 more source

On loop functions in the theory of topological LA-semigroups

open access: yesFilomat, 2022
In theory of topological LA-semigroups, we introduce the concepts of LA-loop functions for LA-lifting functions in theory of LA-fibrations. We prove that the LA-lifting function and LA-loop function for any LA-fibration are not necessarily unique.
openaire   +1 more source

Characterization of the Gut Microbiota of the Antarctic Heart Urchin (Spatangoida) Abatus agassizii

open access: yesFrontiers in Microbiology, 2020
Abatus agassizii is an irregular sea urchin species that inhabits shallow waters of South Georgia and South Shetlands Islands. As a deposit-feeder, A.
Guillaume Schwob   +5 more
doaj   +1 more source

Analysis of Loop Function of Dihydrofolate Reductase

open access: yesSeibutsu Butsuri, 2004
To elucidate the role of flexible loops in the stability and function of Escherichia coli dihydrofolate reductase (DHFR), glycine-67, glycine-121, and alanine-145 in the three different loops were substituted with several amino acids by site-directed mutagenesis.
GEKKO, Kunihiko, OHMAE, Eiji
openaire   +2 more sources

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