Results 41 to 50 of about 22,261 (260)

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

open access: yesFEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero   +5 more
wiley   +1 more source

Chaos Synchronization of Nonlinear Fractional Discrete Dynamical Systems via Linear Control

open access: yesEntropy, 2017
By using a linear feedback control technique, we propose a chaos synchronization scheme for nonlinear fractional discrete dynamical systems. Then, we construct a novel 1-D fractional discrete income change system and a kind of novel 3-D fractional ...
Baogui Xin   +3 more
doaj   +1 more source

Small RNA pathways in mammalian oocytes

open access: yesFEBS Open Bio, EarlyView.
Three distinct small RNA pathways operate in mammalian oocytes: RNAi interference (RNAi), the microRNA (miRNA) pathway, and the PIWI‐associated RNA (piRNA) pathway. These pathways use small RNAs to guide sequence‐specific repression and contribute to oocyte biology by targeting genes and mobile elements or appear insignificant since different ...
Petr Svoboda, Josef Pasulka
wiley   +1 more source

VISUALIZATION TOOLS FOR FUZZY DISCRETE DYNAMICAL SYSTEMS [PDF]

open access: yesFiabilitate şi Durabilitate
The purpose of this paper is to provide visualization tools for the fuzzy discrete dynamical systems introduced in [7].
Iuliana Carmen BĂRBĂCIORU   +1 more
doaj  

Martelli Chaotic Properties of a Generalized Form of Zadeh’s Extension Principle

open access: yesJournal of Applied Mathematics, 2014
Let X denote a compact metric space and let f : X→X be a continuous map. It is known that a discrete dynamical system (X,f) naturally induces its fuzzified counterpart, that is, a discrete dynamical system on the space of fuzzy compact subsets of X.
Yaoyao Lan, Chunlai Mu
doaj   +1 more source

Evolution of an Exponential Polynomial Family of Discrete Dynamical Systems

open access: yesMathematical and Computational Applications, 2019
In this paper, we introduce and analyze a family of exponential polynomial discrete dynamical systems that can be considered as functional perturbations of a linear dynamical system.
Francisco Solis
doaj   +1 more source

Completeness of Lyapunov Abstraction [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2013
In this work, we continue our study on discrete abstractions of dynamical systems. To this end, we use a family of partitioning functions to generate an abstraction.
Rafael Wisniewski, Christoffer Sloth
doaj   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

open access: yesFEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas   +6 more
wiley   +1 more source

Evolution‐guided yeast complementation reveals functional differences in human PSPH variants

open access: yesFEBS Open Bio, EarlyView.
Ancient genomes can help guide which human genetic variants are tested experimentally. This study applies that idea to PSPH, a gene involved in serine biosynthesis, and uses high‐throughput yeast complementation to compare variant function. The findings reveal measurable differences among selected alleles and illustrate the value of evolution‐guided ...
Mauricio Campa‐Álvarez   +6 more
wiley   +1 more source

Level Set Structure of an Integrable Cellular Automaton

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2010
Based on a group theoretical setting a sort of discrete dynamical system is constructed and applied to a combinatorial dynamical system defined on the set of certain Bethe ansatz related objects known as the rigged configurations.
Taichiro Takagi
doaj   +1 more source

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