Results 61 to 70 of about 247,409 (283)

Inosine triphosphate pyrophosphatase activity as a potential predictor of methotrexate remission in juvenile idiopathic arthritis

open access: yesArthritis &Rheumatology, Accepted Article.
Background Methotrexate (MTX) is the first‐line therapy for juvenile idiopathic arthritis (JIA), but up to 40% of patients don't respond. Low inosine‐triphosphate‐pyrophosphatase (ITPA) activity has been associated with reduced clinical remission. We investigated ITPA role and the underlying mechanisms in vitro.
Sofia Sindici Forgiarini   +19 more
wiley   +1 more source

Noise assisted Ramsey interferometry

open access: yes, 2013
I analyze a metrological strategy for improving the precision of frequency estimation via Ramsey interferometry with strings of atoms in the presence of correlated dephasing.
Dorner, U.
core   +1 more source

Multi‐omic profiling reveals immune cell priming signature linked to lupus prognosis

open access: yesArthritis &Rheumatology, Accepted Article.
Objective Systemic lupus erythematosus (SLE) is a multi‐organ disease with widespread immune dysregulation and significant unmet clinical need. Blood‐based gene expression studies have advanced our understanding of SLE pathogenesis but may overlook critical tissue‐specific mechanisms that drive disease heterogeneity and progression.
Michael A. Smith   +23 more
wiley   +1 more source

Cycles are strongly Ramsey-unsaturated

open access: yes, 2012
We call a graph H Ramsey-unsaturated if there is an edge in the complement of H such that the Ramsey number r(H) of H does not change upon adding it to H.
Burr   +4 more
core   +1 more source

Singular Ramsey and Turán numbers

open access: yesTheory and Applications of Graphs, 2019
We say that a subgraph F of a graph G is singular if the degrees d_G(v) are all equal or all distinct for the vertices v of F. The singular Ramsey number Rs(F) is the smallest positive integer n such that, for every m at least n, in every edge 2-coloring
Yair Caro, Zsolt Tuza
doaj   +1 more source

The flexible, the stereotyped and the in‐between: putting together the combinatory tool use origins hypothesis

open access: yesBiological Reviews, EarlyView.
ABSTRACT Tool use research has long made the distinction between tool using that is considered learned and flexible, and that which appears to be instinctive and stereotyped. However, animals with an inherited tool use specialisation can exhibit flexibility, while tool use that is spontaneously innovated can be limited in its expression and facilitated
Jennifer A. D. Colbourne   +1 more
wiley   +1 more source

On the Restricted Size Ramsey Number Involving a Path P3

open access: yesDiscussiones Mathematicae Graph Theory, 2019
For any pair of graphs G and H, both the size Ramsey number ̂r(G,H) and the restricted size Ramsey number r*(G,H) are bounded above by the size of the complete graph with order equals to the Ramsey number r(G,H), and bounded below by e(G) + e(H) − 1 ...
Silaban Denny Riama   +2 more
doaj   +1 more source

Gallai-Ramsey number of an 8-cycle

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Given graphs G and H and a positive integer k, the Gallai-Ramsey number is the minimum integer N such that for any integer every k-edge-coloring of Kn contains either a rainbow copy of G or a monochromatic copy of H.
Jonathan Gregory   +2 more
doaj   +1 more source

Experimental Determination of Ramsey Numbers [PDF]

open access: yesPhysical Review Letters, 2013
Ramsey theory is a highly active research area in mathematics that studies the emergence of order in large disordered structures. Ramsey numbers mark the threshold at which order first appears and are extremely difficult to calculate due to their explosive rate of growth.
Bian, Zhengbing   +4 more
openaire   +3 more sources

Sentience in cephalopod molluscs: an updated assessment

open access: yesBiological Reviews, EarlyView.
ABSTRACT This article evaluates the evidence for sentience – the capacity to have feelings – in cephalopod molluscs: octopus, cuttlefish, squid, and nautilus. Our framework includes eight criteria, covering both whether the animal's nervous system could support sentience and whether their behaviour indicates sentience.
Alexandra K. Schnell   +4 more
wiley   +1 more source

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