Results 71 to 80 of about 3,669 (222)

On some cardinal invariants of hyperspace with (C_0,C_1) Ochan type topology

Lietuvos Matematikos Rinkinys, 2012
In the article are examined some cardinal invariants of hyperspace with Ochan type topology.
Gintaras Praninskas
doaj   +1 more source

The Contingency of Digital Reading: A Postdigital Literacy Ecologies Approach to Local Configurations of Play and Learning

Reading Research Quarterly, Volume 61, Issue 2, April/May/June 2026.
This image presents a graphical abstract summarizing research on digital reading through a postdigital lens. It contrasts techno‐optimist and techno‐alarmist narratives about technology, identifying a gap requiring nuanced understanding. The methodology involves a case study of an Australian high school’s game‐centered English curriculum.
Alexander Bacalja
wiley   +1 more source

Local Connectedness in Hyperspaces

Rocky Mountain Journal of Mathematics, 2006
\textit{W. Makuchowski} [Bull. Pol. Acad. Sci., Math. 47, No. 2, 119--126 (1999; Zbl 0929.54012)] has proved that if \(X\) is a Hausdorff compact space, then local connectedness and local arcwise connectedness of the hyperspace \(C(X)\) of all subcontinua of \(X\) and of the hyperspace \(2^X\) of all non-empty closed subsets of \(X\) are equivalent at ...
Charatonik, Janusz J., Illanes, Alejandro   +1 more
openaire   +3 more sources

Sobre los continuos tipo θ y θn

Revista Integración, 2015
En 1974 el Profesor R. W. FitzGerald definió los continuos tipo θ y θn. (Un continuo X es un continuo tipo θ (tipo θn, para algún número natural n) si para cada subcontinuo K de X, resulta que X \ K sólo tiene un número finito de componentes (X \ K ...
Sergio Macías
doaj  

Outcomes of Permanent Tooth Intrusion; Pulp Necrosis, Ankylosis and Tooth Loss

Dental Traumatology, Volume 42, Issue 2, Page 146-159, April 2026.
ABSTRACT Background/Aim The aim of this study was to examine the timing of pulp necrosis, ankylosis, and tooth loss in intruded permanent teeth based on the stage of root development, degree of intrusion, and initial treatment. Materials and Methods In this retrospective study of intruded permanent teeth between 2013 and 2021, data from 112 teeth in 77
Brittany M. Schweiger, Hancong Tang, Janice A. Townsend, Dennis J. McTigue, Ehsan N. Azadani   +4 more
wiley   +1 more source

Cu‐Catalyzed Tetrafluoroethylation of Aryl Iodides Using “Safe Supply” Tetrafluoroethylene

ChemCatChem, Volume 18, Issue 6, 27 March 2026.
Reaction of [CuH(PPh3)]6 with PMePh2 and readily obtained 1:1 CO2: tetrafluoroethylene affords Cu complex 1 that ffects the CuCl(NHC)‐catalysed tetrafluoroethylation of aryl iodides. ABSTRACT The success of Cu‐mediated, late‐stage fluoroalkylation, originally developed for CF3 transfer, has expanded to additional RF groups including C2F5, CF2H, OCF3 ...
Nicholas O. Andrella, Luana L. T. N. Porto, Nancy Xu, Christian Ehm, R. Tom Baker   +4 more
wiley   +1 more source

Some remarks on hyperspaces [PDF]

Proceedings of the American Mathematical Society, 1969
1. The purpose of this paper is to answer a question of R. Schori [3] and to provide simpler arguments for some generalizations of Schori's results. If X is a metric space, the hyperspace of X, denoted 2X, is the space of all nonvoid closed subsets of X with the usual Hausdorff metric.
openaire   +2 more sources

The cone = hyperspace property, a characterization

, 2001
Let X be a continuum. Let C(X) be the hyperspace of subcontinua of X. We say that X is said to have the cone = hyperspace property if there exists a homeomorphism h:C(X)→Cone(X) such that h(X)=vertex of (Cone(X)) and h({x})=(x,0) for each x∈X.
Illanes, Alejandro
core   +1 more source

Hyperspace pro formativní hodnocení a badatelsky orientovanou výuku: Koncepce – vývoj – aplikace

Pedagogická Orientace
Badatelsky orientovaná výuka a formativní hodnocení jsou představiteli moderních metod a postupů ve výuce. Aby mohly být smysluplně a efektivně používány, je nutné vytvořit příležitosti k tomu, aby se s nimi učitelé seznamovali, promýšleli je a ...
Iva Stuchlíková, Tomáš Janík, Lukáš Rokos, Eva Minaříková, Libuše Samková, Petr Najvar, Alena Hošpesová, Marcela Janíková   +7 more
doaj   +1 more source

Dynamic Resource Allocation for LEO Satellite Systems Under Heterogeneous Traffic Distributions

International Journal of Satellite Communications and Networking, Volume 44, Issue 2, Page 199-209, March/April 2026.
ABSTRACT This paper proposes an efficient resource allocation scheme for low Earth orbit (LEO) satellite systems. Taking into account the unique characteristics of LEO systems for 6G communication services, we introduce a dynamic bandwidth and power allocation scheme specifically designed to accommodate highly heterogeneous traffic distributions.
Jaeyoung Song, Satya Chan, Hee Wook Kim, Bon‐Jun Ku, Daesub Oh, Sooyoung Kim   +5 more
wiley   +1 more source