Results 21 to 30 of about 1,713,707 (269)

Logarithmically small minors and topological minors [PDF]

open access: yesJournal of the London Mathematical Society, 2014
Mader proved that for every integer $t$ there is a smallest real number $c(t)$ such that any graph with average degree at least $c(t)$ must contain a $K_t$-minor. Fiorini, Joret, Theis and Wood conjectured that any graph with $n$ vertices and average degree at least $c(t)+ε$ must contain a $K_t$-minor consisting of at most $C(ε,t)\log n$ vertices ...
openaire   +3 more sources

Bipartite minors

open access: yesJournal of Combinatorial Theory, Series B, 2016
We introduce a notion of bipartite minors and prove a bipartite analog of Wagner's theorem: a bipartite graph is planar if and only if it does not contain $K_{3,3}$ as a bipartite minor. Similarly, we provide a forbidden minor characterization for outerplanar graphs and forests.
Maria Chudnovsky   +4 more
openaire   +3 more sources

A mixed-methods evaluation of the Tobacco Retailer Advanced Compliance (TRAC) online training (e-learning) program

open access: yesTobacco Prevention and Cessation, 2022
Introduction Tobacco vendor training is recognized as an essential element to reduce youth access to tobacco. The TRAC training program was developed utilizing bestpractices in tobacco retailer training, adult instruction, and e-learning.
Fadi Hammal, Hagen Les
doaj   +1 more source

Toeplitz Minors

open access: yesJournal of Combinatorial Theory, Series A, 2002
Let \(T_{n-1} (f)\) denote the \(n\times n\) Toeplitz matrix generated by the Fourier coefficients of the function \(f\) on the unit circle \(\mathbf{T}\) and let \(D_{n-1} (f)=\det T_{n-1} (f)\). The well known strong Szegö limit theorem asserts that if \(\sigma (t)=\exp \left(\sum_{n=-\infty}^\infty c_nt^n\right)\) then \(D_{n-1}(\sigma)\sim \exp ...
Daniel Bump, Persi Diaconis
openaire   +1 more source

Fatal neurocryptococcosis in a Colombian underage patient

open access: yesJournal of Infection in Developing Countries, 2019
Cryptococcosis is a life-threatening mycosis reported mainly in human adults with low frequency in children. High mortality rates may occur in cases with late diagnosis therefore, a timely suspicion of this pathology is important. Cryptococcus gattii is
Maria Clara Noguera   +4 more
doaj   +1 more source

Fast separation in a graph with an excluded minor [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
Let $G$ be an $n$-vertex $m$-edge graph with weighted vertices. A pair of vertex sets $A,B \subseteq V(G)$ is a $\frac{2}{3} - \textit{separation}$ of $\textit{order}$ $|A \cap B|$ if $A \cup B = V(G)$, there is no edge between $A \backslash B$ and $B ...
Bruce Reed, David R. Wood
doaj   +1 more source

Minor characters in the select short stories of R. K. Narayan: A critique [PDF]

open access: yesDiversitate si Identitate Culturala in Europa, 2021
R. K. Narayan is regarded as one of India’s great short story writers. He portrays his characters in the background of local towns and its surrounding environment.
Natasha SHARMA, Naveen Kumar MEHTA
doaj  

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

The right to decide of the minor patients

open access: yesRevista Colombiana de Bioética, 2019
The object of study in this article is to analyze the complex situation that arises in the sanitary field when a minor declines medical treatment for religious, ideological or any other reasons.
Juan Manuel Alba Bermúdez
doaj   +1 more source

THE OPINION OF A LOCAL COMMUNITY ABOUT THEIR JUVENILE REFORMATORY, JUVENILE SOCIOTHERAPY CENTRE AND EMERGENCY SHELTER AS A FACTOR INFLUENCING ITS SENSE OF SECURITY [PDF]

open access: yesProbacja, 2019
The aim of this article is to identify residents’ opinions on various types of youth support centres in the context of their sense of safety. An attempt was made to answer the question to what extent the inhabitants of towns where juvenile reformatories,
Małgorzata Pychner
doaj   +1 more source

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