Results 81 to 90 of about 4,270,653 (326)

On the Monadic Second-Order Transduction Hierarchy [PDF]

, 2009
We compare classes of finite relational structures via monadic second-order transductions. More precisely, we study the preorder where we set C \subseteq K if, and only if, there exists a transduction {\tau} such that C\subseteq{\tau}(K).
A. Blumensath, A. Blumensath, Achim Blumensath, B. Courcelle, B. Courcelle, B. Courcelle, B. Courcelle, B. Courcelle and J. Engelfriet, B. Courcelle and S.-I. Oum, Bruno Courcelle, D. Seese, H. L. Bodlaender, J. Ne\v set\v ril and P. Osson, M. O. Rabin, N. Robertson and P. D. Seymour, N. Robertson and P. D. Seymour, S. Shelah, Wolfgang Thomas   +17 more
core   +3 more sources

Pure second-order logic.

Notre Dame Journal of Formal Logic, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Second order tangency conditions and differential inclusions: a counterexample and a remedy

Electronic Journal of Differential Equations, 2009
In this paper we show that second order tangency conditions are superfluous not to say useless while discussing the existence condition for certain second order differential inclusions. In this regard, a counterexample is provided even in the simpler
Corneliu Ursescu
doaj  

New Oscillation Criteria for Sturm–Liouville Dynamic Equations with Deviating Arguments

Mathematics
The aim of this study is to refine the known Riccati transformation technique to provide new oscillation criteria for solutions to second-order dynamic equations over time.
Taher S. Hassan, Clemente Cesarano, Loredana Florentina Iambor, Amir Abdel Menaem, Naveed Iqbal, Akbar Ali   +5 more
doaj   +1 more source

Design and Analysis of Miniaturized Low Profile and Second-Order Multi-Band Polarization Selective Surface for Multipath Communication Application

IEEE Access, 2019
In this paper, a novel frequency selective surface (FSS) is designed; it has the characteristics of the low profile, second-order, multi-band, and the remarkable polarization selection properties.
Hui Wang, Lin Zheng, Mingbao Yan, Jiafu Wang, Shaobo Qu, Ruitao Luo   +5 more
doaj   +1 more source

Stability Analysis of Earth Dam Slopes Based on the Second-Order Work Criterion in Finite Element Modeling [PDF]

, 2023
Anthony Mouyeaux, Claudio Carvajal, François Nicot, Antoine Wautier, Laurent Peyras   +4 more
openalex   +1 more source

Second order reflected backward stochastic differential equations [PDF]

, 2013
In this article, we build upon the work of Soner, Touzi and Zhang [Probab. Theory Related Fields 153 (2012) 149-190] to define a notion of a second order backward stochastic differential equation reflected on a lower c\`adl\`ag obstacle.
Matoussi, Anis, Possamaï, Dylan, Zhou, Chao   +2 more
core   +3 more sources

SECOND-ORDER INVARIANTS AND HOLOGRAPHY [PDF]

International Journal of Modern Physics D, 2012
Motivated by recent works on the role of the holographic principle in cosmology, we relate a class of second-order Ricci invariants to the IR cutoff characterizing the holographic dark energy density. The choice of second-order invariants provides an invariant way to account the problem of causality for the correct cosmological cutoff, since the ...
Luongo, Orlando, Bonanno, Luca, Iannone, Gerardo   +2 more
openaire   +3 more sources

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source