Results 41 to 50 of about 179,998 (337)

Size-Change Termination, Monotonicity Constraints and Ranking Functions [PDF]

open access: yes, 2009
Size-Change Termination (SCT) is a method of proving program termination based on the impossibility of infinite descent. To this end we may use a program abstraction in which transitions are described by monotonicity constraints over (abstract) variables.
Amir Ben-Amram   +8 more
core   +4 more sources

Necessary conditions for reaction-diffusion system with delay preserving positivity

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
We consider the reaction--diffusion system with delay \begin{equation*} \left\{\begin{aligned} &\frac{\partial u}{\partial t}=A(t,x)\Delta u-\sum_{i=1}^{k}\gamma_{i}(t,x)\partial_{x_{i}}u +f(t,u_{t}) , &x\in \Omega; \\ &B(u)|_{\partial \Omega}=0.\\ \
Lirui Feng   +3 more
doaj   +1 more source

Sophisticated Statistics Cannot Compensate for Method Effects If Quantifiable Structure Is Compromised

open access: yesFrontiers in Psychology, 2022
Researchers rely on psychometric principles when trying to gain understanding of unobservable psychological phenomena disconfounded from the methods used.
Damian P. Birney   +3 more
doaj   +1 more source

Monotonic cocycles

open access: yesInventiones mathematicae, 2015
We develop a "local theory" of multidimensional quasiperiodic $\SL(2,\R)$ cocycles which are not homotopic to a constant. It describes a $C^1$-open neighborhood of cocycles of rotations and applies irrespective of arithmetic conditions on the frequency, being much more robust than the local theory of $\SL(2,\R)$ cocycles homotopic to a constant.
Artur Avila, Raphaël Krikorian
openaire   +2 more sources

Detecting homologous recombination deficiency for breast cancer through integrative analysis of genomic data

open access: yesMolecular Oncology, EarlyView.
This study develops a semi‐supervised classifier integrating multi‐genomic data (1404 training/5893 validation samples) to improve homologous recombination deficiency (HRD) detection in breast cancer. Our method demonstrates prognostic value and predicts chemotherapy/PARP inhibitor sensitivity in HRD+ tumours.
Rong Zhu   +12 more
wiley   +1 more source

Testing Top Monotonicity [PDF]

open access: yes, 2014
Top monotonicity is a relaxation of various well-known domain restrictions such as single-peaked and single-crossing for which negative impossibility results are circumvented and for which the median-voter theorem still holds.
Aziz, Haris
core  

Uniqueness and monotonicity of solutions for fractional equations with a gradient term

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
In this paper, we consider the following fractional equation with a gradient term $$(-\Delta)^{s} u(x)= f(x,u (x), \nabla u (x)),$$ in a bounded domain and the upper half space.
Pengyan Wang
doaj   +1 more source

Soft‐Layered Composites with Wrinkling‐Activated Multi‐Linear Elastic Behavior, Stress Mitigation, and Enhanced Strain Energy Storage

open access: yesAdvanced Engineering Materials, EarlyView.
In this study, exciting new bi‐/multi‐linear elastic behavior of soft elastic composites that accompany the activation of wrinkling in the embedded interfacial layers is analyzed. The new features and performance of these composite materials, including dramatic enhancements in energy storage, can be tailored by the concentration of interfacial layers ...
Narges Kaynia   +2 more
wiley   +1 more source

Is more health always better? Exploring public preferences that violate monotonicity [PDF]

open access: yes, 2009
Abásolo and Tsuchiya (2004a) report on an empirical study to elicit public preferences regarding the efficiency-equality trade-off in health, where the majority of respondents violated monotonicity.
Abásolo, I., Tsuchiya, A.
core  

A Novel Simulation Approach for Damage Evolution during Tailored Forming

open access: yesAdvanced Engineering Materials, EarlyView.
Traditional damage models are struggling to accurately and efficiently simulate large‐scale three‐dimensional models with a great number of degrees of freedoms. A new gradient‐enhanced damage model based on the extended Hamilton principle can significantly reduce the computation time while ensuring mesh‐independence which is suitable to use in tailored
Fangrui Liu   +2 more
wiley   +1 more source

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