Results 81 to 90 of about 7,833,680 (354)

Diffusion‐based size determination of solute particles: a method adapted for postsynaptic proteins

FEBS Open Bio, EarlyView.
We present a diffusion‐based approach for measuring the size of macromolecules and their complexes, and demonstrate its use on postsynaptic proteins. The method requires fluorescein‐labelled protein samples, a microfluidic device that maintains laminar flow for said samples, a microscope recording the emitted fluorescent signals, and an analytic ...
András László Szabó, Eszter Nagy‐Kanta, Soma Varga, Edit Andrea Jáger, Csaba István Pongor, Mária Laki, András József Laki, Zoltán Gáspári   +7 more
wiley   +1 more source

Some Combined Results from Eneström–Kakeya and Rouché Theorems on the Generalized Schur Stability of Polynomials and the Stability of Quasi-Polynomials-Application to Time-Delay Systems

Mathematics
This paper derives some generalized Schur-type stability results of polynomials based on several forms and generalizations of the Eneström–Kakeya theorem combined with the Rouché theorem.
Manuel De la Sen
doaj   +1 more source

Positive Real Zeros in Flexible Beams

Shock and Vibration, 1995
Feedback control of flexible structures naturally involves actuators and sensors that often cannot be placed at the same point in the structure. It has been widely recognized that this noncollocation can lead to difficult control problems and, in ...
Eric H. Maslen
doaj   +1 more source

Synthesis of Fully Canonical Wideband Bandpass Filters With Complex Reflection Zeros

IEEE Access, 2019
The paper presents a synthesis of fully canonical wideband bandpass filters with complex reflection zeros (RZs), which can realize the bandpass filters with the same number of transmission zeros (TZs) as the order of filters. Three functions are proposed
Yu Zhu, Kaijun Song, Yong Fan
doaj   +1 more source

Phase response reconstruction for non‐minimum phase systems using frequency‐domain magnitude values

IET Science, Measurement & Technology, 2021
It is often more complicated to measure the phase response of a large system than the magnitude. In that case, one can attempt to use the Kramers–Kronig (KK) relations for magnitude and phase, which relates magnitude and phase analytically. The advantage
Taco Boland, Rik Naus, Peter Zwamborn
doaj   +1 more source

Convergence of random zeros on complex manifolds

, 2007
We show that the zeros of random sequences of Gaussian systems of polynomials of increasing degree almost surely converge to the expected limit distribution under very general hypotheses.
A. Edelman, B. Shiffman, B. Shiffman, B. Shiffman, Bernard Shiffman, D. Catlin, E. Bogomolny, G. Tian, J. H. Hannay, J. M. Hammersley, J. M. Rojas, M. Kac, M. Shub, M. Sodin, M. Wschebor, P. Bleher, P. Bleher, P. J. Forrester, S. Nonnenmacher, S. Zelditch, T. Bloom, T. Bloom, T. Bloom   +22 more
core   +1 more source

Short‐term actions of epigalocatechin‐3‐gallate in the liver: a mechanistic insight into hypoglycemic and potential toxic effects

FEBS Open Bio, EarlyView.
Epigallocatechin‐3‐gallate (EGCG) acutely inhibited gluconeogenesis and enhanced glycolysis, glycogenolysis, and fatty acid oxidation in perfused rat livers. Mechanistic assays revealed mitochondrial uncoupling, inhibition of pyruvate carboxylation and glucose‐6‐phosphatase, shift of NADH/NAD+ ratios toward oxidation, and loss of membrane integrity ...
Carla Indianara Bonetti, Bruna Lopes Correia, Francielle Cristina Nakamura Manicardi, Nairana Mithieli de Queiroz Eskuarek Melo, Vanesa de Oliveira Pateis, Jurandir Fernando Comar, Anacharis Babeto de Sá‐Nakanishi, Adelar Bracht, Lívia Bracht   +8 more
wiley   +1 more source

Replica analysis of partition-function zeros in spin-glass models

, 2011
We study the partition-function zeros in mean-field spin-glass models. We show that the replica method is useful to find the locations of zeros in a complex parameter plane.
Derrida B, Derrida B, Fisher M E, Kazutaka Takahashi, Matsuda Y, Matsuda Y, Mézard M, Nishimori H, Obuchi T, Parisi G, Parisi G, Parisi G   +11 more
core   +1 more source

Interplay between RNA‐protein interactions and RNA structures in gene regulation

FEBS Open Bio, EarlyView.
Methodological advances in mapping transcriptome‐wide RNA‐protein interactions and RNA structures have started to uncover the potential of RNP conformations in gene regulation. Competing RNA–RNA, RNA‐protein and protein–protein interactions shape the compaction and function of RNPs throughout their lifetime and may provide novel therapeutic targets in ...
Jenni Rapakko, Mauro Scaravilli, Minna‐Liisa Änkö   +2 more
wiley   +1 more source

Exact Fisher zeros and thermofield dynamics across a quantum critical point

Physical Review Research
By setting the inverse temperature β loose to occupy the complex plane, Fisher showed that the zeros of the complex partition function Z, if approaching the real β axis, reveal a thermodynamic phase transition.
Yang Liu, Songtai Lv, Yuchen Meng, Zefan Tan, Erhai Zhao, Haiyuan Zou   +5 more
doaj   +1 more source