Results 71 to 80 of about 4,711,203 (306)

Geodesic Monte Carlo on Embedded Manifolds [PDF]

open access: yes, 2013
Markov chain Monte Carlo methods explicitly defined on the manifold of probability distributions have recently been established. These methods are constructed from diffusions across the manifold and the solution of the equations describing geodesic flows
Simon Byrne   +5 more
core   +1 more source

Completeness relation in renormalized quantum systems

open access: yesFrontiers in Physics
In this work, we show that the completeness relation for the eigenvectors, which is an essential assumption of quantum mechanics, remains true if the Hamiltonian, having a discrete spectrum, is modified by a delta potential (to be made precise by a ...
Fatih Erman   +2 more
doaj   +1 more source

Joint Infrared Target Recognition and Segmentation Using a Shape Manifold-Aware Level Set

open access: yesSensors, 2015
We propose new techniques for joint recognition, segmentation and pose estimation of infrared (IR) targets. The problem is formulated in a probabilistic level set framework where a shape constrained generative model is used to provide a multi-class and ...
Liangjiang Yu   +3 more
doaj   +1 more source

Spatial biology in cancer epigenetics

open access: yesMolecular Oncology, EarlyView.
Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley   +1 more source

Smooth center manifolds for nonuniformly partially hyperbolic trajectories [PDF]

open access: yes, 2007
We establish the existence of unique smooth center manifolds for ordinary differential equations v′=A(t)v+f(t,v) in Banach spaces, assuming that v′=A(t)v admits a nonuniform exponential trichotomy.
Valls, Claudia, Barreira, Luis
core   +1 more source

Local invariant manifolds for delay differential equations with state space in $C^1((-\infty,0],\mathbb{R}^n)$

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
Consider the delay differential equation $x'(t)=f(x_t)$ with the history $x_t:(-\infty,0]\to\mathbb{R}^n$ of $x$ at 'time' $t$ defined by $x_t(s)=x(t+s)$. In order not to lose any possible entire solution of any example we work in the Fréchet space $C^1((
Hans-Otto Walther
doaj   +1 more source

Predictive and prognostic biomarkers of Bacillus Calmette‐Guérin therapy failure in bladder cancer patients: A systematic review

open access: yesMolecular Oncology, EarlyView.
High‐risk bladder cancer is typically treated with Bacillus Calmette‐Guérin (BCG), but 30–40% of patients relapse. No FDA‐ or CE‐approved biomarkers currently predict or prognosticate BCG failure. We systematically reviewed the literature and identified 72 eligible studies, revealing several promising biomarkers associated with BCG treatment response ...
Rui Ribeiro‐Pereira   +7 more
wiley   +1 more source

Vector bundles on manifolds: the cohomology of projective algebraic varieties [PDF]

open access: yes, 2004
This Thesis looks at different areas of mathematics which require the notion of a differentiable manifold. The first three chapters contain various materials such as differentiable manifolds, submanifolds, tangent bundles, differential forms ...
Al-Ofi, Abdulaziz Slaim
core  

Centers on center manifolds in a quadratic system obtained froma scalar third-order differential equation

open access: yesElectronic Journal of Differential Equations, 2011
We give affirmative answers to two questions concerning the existence of centers on local center manifolds at equilibria of a quadratic system in the three dimensional space.
Warley Ferreira da Cunha   +2 more
doaj  

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

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