Results 21 to 30 of about 4,775 (232)

A Coiflets-Based Wavelet Laplace Method for Solving the Riccati Differential Equations

Journal of Applied Mathematics, 2014
A wavelet iterative method based on a numerical integration by using the Coiflets orthogonal wavelets for a nonlinear fractional differential equation is proposed.
Xiaomin Wang
doaj   +1 more source

A comparative analysis of preprocessing techniques of cardiac event series for the study of heart rhythm variability using simulated signals

Brazilian Journal of Medical and Biological Research, 1998
In the present study, using noise-free simulated signals, we performed a comparative examination of several preprocessing techniques that are used to transform the cardiac event series in a regularly sampled time series, appropriate for spectral analysis
H.N. Guimarães, R.A.S. Santos
doaj   +1 more source

A convolution integral equation solved by Laplace transformations [PDF]

Journal of Computational and Applied Mathematics, 1985
The author analyzes the Volterra equation \(p(t)=\int^{t}_{0}K(t- s)p(s)ds+r(t),\) \(t\geq 0\), where K(t), r(t) grow as \(\exp (\alpha t^ 3)\), \(\alpha >0\), for \(t\to \infty\). This rapid growth excludes the straightforward use of Laplace transform techniques; instead the equation is solved using a complex independent variable.
openaire   +3 more sources

On the generalized convolution for F c , F s , and K–L integral transforms [PDF]

Ukrainian Mathematical Journal, 2012
New generalized noncommutative convolutions with weight function \(\gamma(y) = y\) are introduced on the spaces \(L^1(\mathbb R_+, x^\alpha e^{-\beta x}).\) They satisfy the usual factorization equalities with respect to various integral transforms (Fourier sine, Fourier cosine and Kontorovich-Lebedev). Several applications are listed.
Virchenko, N.O., Thao, N.X.
openaire   +2 more sources

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Integral Transforms of Fourier Cosine Convolution Type

Journal of Mathematical Analysis and Applications, 1999
The author investigates integral transforms of the type \[ g(x)= \int^\infty_0 [k(x+ y)+ k(| x-y|)] f(y)dy,\quad x\in\mathbb{R}_+ \] in spaces \(L_p(\mathbb{R}_+)\), \(1\leq p\leq 2\). It is proved that this transformation is a bounded operator from \(L_p(\mathbb{R}_+)\), \(1\leq p\leq 2\) into \(L_q(\mathbb{R}_+)\), \(p^{-1}+ q^{-1}= 1\). Furthermore,
openaire   +2 more sources

ZW4864‐mediated inhibition of the β‐catenin/BCL9/BCL9L complex reveals therapeutic potential in bladder cancer

Molecular Oncology, EarlyView.
BCL9 and BCL9L drive bladder cancer progression by enhancing β‐catenin signaling, promoting proliferation, migration, invasion, and organoid growth. Genetic depletion of BCL9(L) suppresses malignant phenotypes, while pharmacological disruption of the β‐catenin/BCL9(L) complex with ZW4864 inhibits canonical Wnt signaling and tumor‐associated cellular ...
Roland Kotolloshi, Mandy Berndt‐Paetz, Eileen Lerner, Gregoire Najjar, Anca Azoitei, Krishna Pal Singh, Shailendra Kumar Gupta, Olaf Wolkenhauer, Cagatay Günes, Otmar Huber, Marc‐Oliver Grimm, Daniel Steinbach   +11 more
wiley   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source

Rapid screening of staphylokinase protein variants using an unpurified cell‐free expression system

FEBS Open Bio, EarlyView.
An unpurified cell‐free protein synthesis (CFPS) platform enables rapid functional screening of staphylokinase variants. Direct plasminogen‐activation assays performed in microplate format provide real‐time activity readouts, allowing rapid identification and ranking of variants with improved or reduced fibrinolytic activity without protein ...
Maria Tomková, Veronika Hovanová, Jiri Damborsky, Erik Sedlák   +3 more
wiley   +1 more source

Isometry property and inversion of a spherical mean Radon transform with centers on a hyperplane

AIP Advances
The spherical mean Radon transform maps a suitable function f to the integral of f over a sphere. This transform is used in photoacoustic tomography based on the wave equation.
Jeongmin Kim, Sunghwan Moon
doaj   +1 more source