Results 41 to 50 of about 1,604,213 (297)

Matrix regularization of classical Nambu brackets and super p-branes

Journal of High Energy Physics, 2021
We present an explicit matrix algebra regularization of the algebra of volume-preserving diffeomorphisms of the n-torus. That is, we approximate the corresponding classical Nambu brackets using sl N n 2 ℂ $$ \mathfrak{sl}\left({N}^{\left\lceil \frac{n}{2}
Meer Ashwinkumar, Lennart Schmidt, Meng-Chwan Tan   +2 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

On Generalized p,q-Euler Matrix and Associated Sequence Spaces

Journal of Function Spaces, 2021
In this study, we introduce new BK-spaces bsr,tp,q and b∞r,tp,q derived by the domain of p,q-analogue Br,tp,q of the binomial matrix in the spaces ℓs and ℓ∞, respectively.
Taja Yaying, Bipan Hazarika, Mohammad Mursaleen   +2 more
doaj   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

FEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino, Meijie Li, Cécile Fizames, Mattia Adamo, Laurence Lejay, Christian Dubos, Matthieu Platre, Antoine Martin   +7 more
wiley   +1 more source

P- 80 DIFFERENTIAL EXPRESSION OF MATRIX METALLOPROTEINASE 7 IN CHRONIC LIVER DISEASES

Annals of Hepatology, 2023
Introduction and Objectives: We recently published that in the serum of patients with chronic Hepatitis C, there are high concentrations of inactive Matrix Metalloproteinases (MMP). However, the MMP has not been studied in other liver diseases.
Daniel Montes de Oca-Angeles, M. Lemus-Peña, A. Hernandez-Barragan, M. Hernández-Santillán, Moisés Martinez-Castillo, Z. Medina-Avila, D. Santana-Vargas, A. Torre-Delgadillo, J.L. Pérez-Hernández, F. Higuera-De la Tijera, P. Cordero-Pérez, L. Muñoz-Espinosa, D. Kershenobich, G. Gutiérrez-Reyes   +13 more
doaj   +1 more source

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

FEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

On general fixed point method based on matrix splitting for solving linear complementarity problem

Journal of Numerical Analysis and Approximation Theory, 2022
In this article, we introduce a modified fixed point method to process the large and sparse linear complementarity problem (LCP) and formulate an equivalent fixed point equation for the LCP and show the equivalence.
Bharat Kumar, Deepmala, A. K. Das
doaj  

P-Matrix analysis of the dibaryon1 D 2 resonance

Zeitschrift für Physik C Particles and Fields, 1984
We study the relation between intermediate energy nucleon-nucleon scattering and the eigenstates of the bag model using theP-matrix formalism. Data of existing phase-shift analyses are employed to calculate theP-matrix for the coupled1D2(pp) and5S2(NΔ) channels in the energy region above the Δ-isobar production threshold. TheP-matrix calculated for the
I. L. Grach, I. M. Narodeskii, M. Zh. Shmatikov   +2 more
openaire   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source