Buscador de Tesis y publicaciones académicas

Artículo 2027 Acceso abierto Revisado por pares

Reassigning an amber codon to selenocysteine using a functional cysteine suppression pair in Escherichia coli

Shaopeng Niu · Jingyan Wei · Mengna Li · Borui Guo · y 4 más

Selenoproteins, characterized by the presence of selenocysteine (Sec) residues, are widely distributed across all domains of life. The unique attributes of selenoproteins are conferred by Sec, which is genetically encoded into nascent polypeptide chains through the recoding of the UGA codon. Human glutathione peroxidas...

basic medicine medical and health sciences Original Research Article

• Elsevier BV
• English
• DOI: 10.1016/j.synbio.2026.06.011

Leer el documento

Artículo 2027 Acceso abierto Revisado por pares

A new test method to assess the cleanability of open process equipment

Roman Murcek · Enrico Fuchs · Matthias Joppa · Vincent Eisenrauch · y 2 más

The hygienic design of food processing machines and facilities is essential for ensuring food safety, as it enables reliable and efficient cleaning. While a standardized laboratory test procedure for assessing cleanability is available for closed equipment, comparable methods for open equipment are still lacking. This...

• Elsevier BV
• English
• DOI: 10.1016/j.jfoodeng.2026.113328

Leer el documento

Artículo 2027 Acceso abierto Revisado por pares

Matrix norm shrinkage estimators and priors

Xiao Li · Takeru Matsuda · Fumiyasu Komaki

We develop a class of minimax estimators for a normal mean matrix under the Frobenius loss, which generalizes the James--Stein and Efron--Morris estimators. It shrinks the Schatten norm towards zero and works well for low-rank matrices. We also propose a class of superharmonic priors based on the Schatten norm, which g...

Statistics Theory FOS: Mathematics Statistics Theory (math.ST)

• Elsevier BV
• English
• DOI: 10.1016/j.jspi.2026.106470

Leer el documento

Artículo 2027 Acceso abierto Revisado por pares

Explicit lower bounds on the conductors of elliptic curves and abelian varieties over number fields

Pierre Tchamitchian

Following the work of Mestre, we use Weil's explicit formulas to compute explicit lower bounds on the conductors of elliptic curves and abelian varieties over number fields. Moreover, we obtain bounds for the conductor of elliptic curves and abelian varieties over $\mathbb{Q}$ with specified bad reduction and over numb...

11G40, 11F72 (Primary) 11G10, 11G05 (Secondary) Number Theory FOS: Mathematics Number Theory (math.NT)

• Elsevier BV
• English
• DOI: 10.1016/j.jnt.2026.06.014

Leer el documento

Artículo 2027 Acceso abierto Revisado por pares

Efficient tensor decomposition via moment matrix extension

Bobby Shi · Julia Lindberg · Joe Kileel

Motivated by a flurry of recent work on efficient tensor decomposition algorithms, we show that the celebrated moment matrix extension algorithm of Brachat, Comon, Mourrain, and Tsigaridas for symmetric tensor canonical polyadic (CP) decomposition can be made efficient under the right conditions. We first show that the...

FOS: Computer and information sciences Numerical Analysis FOS: Mathematics Symbolic Computation

• Elsevier BV
• English
• DOI: 10.1016/j.jsc.2026.102612

Leer el documento

Artículo 2027 Acceso abierto Revisado por pares

Group zero-norm regularized robust loss minimization: Proximal MM method and statistical error bound

Ling Liang · Shujun Bi

This study focuses on solving group zero-norm regularized robust loss minimization problems. We propose a proximal Majorization-Minimization (PMM) algorithm to address a class of equivalent Difference-of-Convex (DC) surrogate optimization problems. First, we present the core principles and iterative framework of the PM...

Optimization and Control (math.OC) Optimization and Control FOS: Mathematics mathematics

• Elsevier BV
• English
• DOI: 10.1016/j.cam.2026.118173

Leer el documento

Artículo 2027 Acceso abierto Revisado por pares

The positivity technique and low-lying zeros of Dirichlet L-functions

Tianyu Zhao

Assuming the generalized Riemann hypothesis, we sharpen the error terms in a number of estimates related to the distribution of low-lying zeros of Dirichlet $L$-functions. The refinements, building upon earlier work of Omar, come from the use of the positivity technique, which involves choosing certain test functions i...

Number Theory FOS: Mathematics 11M06, 11M26, 11M41 Number Theory (math.NT)

• Elsevier BV
• English
• DOI: 10.1016/j.jnt.2026.06.013

Leer el documento

Artículo 2027 Acceso abierto Revisado por pares

The structure of almost Cohen-Macaulay 3-generated ideals of codimension 2 in terms of matrix theory

Ricardo Burity · Thiago Fiel · Zaqueu Ramos · Aron Simis

Let $R$ be a standard graded polynomial ring over a field $k$. The paper focuses on homogeneous ideals $J \subset R$ of codimension $2$ generated by three forms of the same degree $d \geq 2$ that are almost Cohen--Macaulay, i.e., of homological dimension $2$. Based on the structure of the minimal graded free resolution...

Commutative Algebra FOS: Mathematics mathematics Commutative Algebra (math.AC)

• Elsevier BV
• English
• DOI: 10.1016/j.jalgebra.2026.07.019

Leer el documento

Artículo 2027 Acceso abierto Revisado por pares

Selective catalytic removal of carbon monoxide from ethylene-containing model pyrolysis gas streams

Aleksi Vartiainen · Ville Nikkanen · Pekka Simell · Michal Jeremiáš

Pyrolysis is a promising chemical recycling route for plastic waste that is unsuitable for mechanical recycling. High-temperature pyrolysis can be used to increase the olefin-rich pyrolysis gas yield. The aim is to feed the pyrolysis gas directly to the recovery section of a steam cracker, thereby bypassing the cracker...

Water–gas shift Plastic waste recycling Methanation engineering and technology

• Elsevier BV
• English
• DOI: 10.1016/j.fuel.2026.141123

Leer el documento

Artículo 2027 Acceso abierto Revisado por pares

An audio-visual fusion emotion generation model based on neuroanatomical alignment

Haidong Wang · Qia Shan · JianHua Zhang · PengFei Xiao · y 1 más

In the field of affective computing, traditional methods for generating emotions predominantly rely on deep learning techniques and large-scale emotion datasets. However, deep learning techniques are often complex and difficult to interpret, and standardizing large-scale emotional datasets are difficult and costly to e...

Human-Computer Interaction FOS: Computer and information sciences Artificial Intelligence (cs.AI) Artificial Intelligence

• Elsevier BV
• English
• DOI: 10.1016/j.inffus.2026.104739

Leer el documento