Results 91 to 100 of about 145,218 (264)

Phase-diagram of condensed and isolated skyrmions in chiral magnetic films

Communications Physics
Skyrmions in chiral magnetic films exist either in the isolated phase, confined within the sample, or the condensed phase, occupying it entirely. The stability of magnetic structures in generic perpendicularly magnetized chiral magnetic films is fully ...
Moditha Viraj Wijethunga, Xuchong Hu, Xiangrong Wang   +2 more
doaj   +1 more source

Analysis of the Channel Influence to Power Line Communications Based on ITU-T G.9904 (PRIME)

Energies, 2016
ITU-T G.9904 standard, also known as PoweRline Intelligent Metering Evolution (PRIME), is a Power Line Communications standard for advanced metering, grid control and asset monitoring defined by the International Telecommunication Union (ITU).
Asier Llano, Itziar Angulo, Pablo Angueira, Txetxu Arzuaga, David de la Vega   +4 more
doaj   +1 more source

Identifying transcription factors controlling the basal expression of human MRP4 highlights a substantial role for Sp1

FEBS Open Bio, EarlyView.
The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer, Angelique Kragl, Katrin Ziems, Juliane Glaubitz, Sophie Grammbauer, Susanne Hildebrandt, Mladen V. Tzvetkov, Gabriele Jedlitschky   +7 more
wiley   +1 more source

Dihedral Congruence Primes and Class Fields of Real Quadratic Fields

Journal of Number Theory, 2002
The author characterizes the primes \(p\) such that the congruence \(f\equiv f\otimes\mod{\wp}\) holds for primitive cusp forms \(f\) of weight \(k\geq 2\) and quadratic nebentypus \(\chi=\chi_1\chi_2\), and a prime \(\wp\) of \(\overline{\mathbb Q}\) above \(p\), where \(\chi_1\) is even quadratic. Such primes are called dihedral. They are essentially
Brown, Alexander F., Ghate, Eknath P.
openaire   +1 more source

Versatile vector tools for efficient protein screening across multiple expression systems

FEBS Open Bio, EarlyView.
A unified vector toolkit enables rapid protein expression screening across E. coli, insect, and mammalian cells. A single primer pair amplifies the target gene, which is inserted into any vector via a standardized interface. This streamlined workflow eliminates repeated cloning steps, accelerating the identification of optimal expression conditions for
Zhimin Zhu, Yaqing Liu, Lei Qin, Feng Yu, Qisheng Wang, Yahui Liu   +5 more
wiley   +1 more source

A Hardware-Accelerated ECDLP with High-Performance Modular Multiplication

International Journal of Reconfigurable Computing, 2012
Elliptic curve cryptography (ECC) has become a popular public key cryptography standard. The security of ECC is due to the difficulty of solving the elliptic curve discrete logarithm problem (ECDLP).
Lyndon Judge, Suvarna Mane, Patrick Schaumont   +2 more
doaj   +1 more source

Improvements to the number field sieve for non-prime finite fields

CoRR, 2014
We propose various strategies for improving the computation of discrete logarithms in non-prime fields of medium to large characteristic using the Number Field Sieve. This includes new methods for selecting the polynomials; the use of explicit automorphisms; explicit computations in the number fields; and prediction that some units have a zero virtual ...
Razvan Barbulescu, Pierrick Gaudry, Aurore Guillevic, François Morain   +3 more
openaire   +2 more sources

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

Guiding AlphaFold to predict how Munc13‐1 opens Syntaxin‐1

FEBS Open Bio, EarlyView.
The syntaxin‐1 Habc‐domain (orange), linker (pink) and SNARE motif (yellow) form a closed conformation that binds to Munc18‐1 (violet) and is opened by the Munc13‐1 MUN domain (cyan) to form the SNARE complex that triggers neurotransmitter release.
Madhurima Chattopadhyay, Junjie Xu, Josep Rizo   +2 more
wiley   +1 more source

A note on expansion in prime fields

, 2018
Let $β,ε\in (0,1]$, and $k \geq \exp(122 \max\{1/β,1/ε\})$. We prove that if $A,B$ are subsets of a prime field $\mathbb{Z}_{p}$, and $|B| \geq p^β$, then there exists a sum of the form $$S = a_{1}B \pm \ldots \pm a_{k}B, \qquad a_{1},\ldots,a_{k} \in A,$$ with $|S| \geq 2^{-12}p^{-ε}\min\{|A||B|,p\}$.
Orponen, Tuomas, Venieri, Laura
openaire   +2 more sources