Results 111 to 120 of about 2,535,841 (289)

Approximation of inverse problems for fractional differential equations in abstract spaces

Alexandria Engineering Journal
This article focuses on approximating a fractional-order inverse problem (IP) for an abstract differential equation in a Hilbert space. The main tools to find out the results are fixed-point methods, the α-resolvent family, and optimal control (OC ...
Santosh Ruhil, Muslim Malik, Kottakkaran Sooppy Nisar, Fahad Sameer Al Shammari   +3 more
doaj   +1 more source

A Toeplitz-like operator with rational matrix symbol having poles on the unit circle: matrix representation and spectral analysis

Afrika Matematika
In this paper we consider a class of unbounded Toeplitz operators with rational matrix symbols that have poles on the unit circle and employ state space realization techniques from linear systems theory, as used in our earlier analysis in Groenewald et ...
G. Groenewald, S. ter Horst, J. Jaftha, A. Ran   +3 more
semanticscholar   +1 more source

A note on the resolvent of a nonnegative matrix and its applications

Linear Algebra and its Applications, 2010
The main result of this paper is the following. Let \(X' = (x'_{ij} )\) be a nonnegative matrix obtained from \(X = (x_{ij} )\) by decreasing a single entry \(x_{hk}\). Then for all indices \(i,j\) and for all \(t\) in \([0,1/\max (r_X ,r_{X'} ))\), where \(r_X ,r_{X'}\) are the spectral radii of \(X\) and respectively \(X'\), the entries of \(Y = (I -
openaire   +2 more sources

PANoptosis in the pathogenesis of myelodysplastic syndromes

Molecular Oncology, EarlyView.
PANoptosis, a combination of three types of programmed cell death, is mediated by a large protein complex called a PANoptosome. In healthy bone marrow hematopoietic cells, PANoptosis is restricted by inhibitory signaling. In MDS, bone marrow cells become sensitive to the PANoptotic stimuli due to the aberrant inactivation of inhibitory signaling or ...
Rohit Thalla, Jyoti Lamichhane, Cameron Lewis, Peter Breslin, Jiwang Zhang   +4 more
wiley   +1 more source

Solution Operators for Fractional-Order Coupled Systems Governed by Distributed-Order Equations

Fractal and Fractional
This paper is devoted to the construction and analysis of solution operators for a broad class of fractional-order systems. Both coupled systems with a memory-decoupled structure and fully coupled systems are considered.
Sabir Umarov
doaj   +1 more source

Mechanisms and therapeutic opportunities of the ribotoxic stress response in cancer

Molecular Oncology, EarlyView.
Cancer cells' high translational demand creates opportunities to therapeutically target ribosome function. Ribosome stalling and collisions activate ZAKα and the ribotoxic stress response (RSR), which can trigger rapid, p53‐independent apoptosis in cancer.
Anastassiya Kim, Maryam Aslam, Elouise Torruella, Alphons Sony, Asif Rahman, Simira Smith, Columba de la Parra, Moira Sauane   +7 more
wiley   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Resolvent approaches to elliptic regularity in stationary Fokker–Planck equations

Demonstratio Mathematica
This paper investigates the local regularity of solutions to stationary Fokker–Planck equations on an open set U⊂Rd $U\subset {\mathbb{R}}^{d}$ with d ≥ 2.
Lee Haesung
doaj   +1 more source

Time‐restricted feeding prior to Mycobacterium tuberculosis infection reduces tissue CD4+ T cells with limited impact on bacterial clearance

FEBS Open Bio, EarlyView.
Time‐restricted feeding (TRF) in mice increased liver fatty acid oxidation and decreased fatty acid biosynthesis. These alterations persisted when TRF was discontinued and the host was infected with Mycobacterium tuberculosis. Pre‐exposure to TRF did not alter tissue (lung and spleen) mycobacterial burden but significantly reduced CD3+ T cells in lungs
Ashish Gupta, Nidhi Yadav, Subhasmita Das, R. Rajendra Kumar Reddy, Nupur Sharma, Amol Ratnakar Suryawanshi, Jaswinder Singh Maras, Ranjan Kumar Nanda   +7 more
wiley   +1 more source

Resolvent of matrix polynomials, pseudospecrta and inversion problems

, 2002
Summary: The author deals with a mathematical model for dynamical systems described by \(n\) ordinary differential equations of order \(m\) with constant coefficients. The formulae for resolvents of matrix polynomials (\(\lambda\)-matrices) and for ``derivative resolvents'' corresponding to the time differentiation as well as their differentiation with
openaire   +2 more sources