Results 31 to 40 of about 5,332,863 (278)

Expansive Subdynamics [PDF]

Transactions of the American Mathematical Society, 1997
This paper provides a framework for studying the dynamics of commuting homeomorphisms. Let α \alpha be a continuous action of Z d \mathbb {Z}^d on an infinite compact metric space. For each subspace V V of R d \mathbb ...
Boyle, Mike, Lind, Douglas
openaire   +1 more source

Three steps to accelerated expansion [PDF]

, 2010
We study the dynamics of a non-minimally coupled scalar field cosmology with a potential function. We use the framework of dynamical systems theory to investigate all evolutional paths admissible for all initial conditions.
Chevallier, Hrycyna, Hrycyna, Kurek, Linder, Szydlowski, Szydlowski   +6 more
core   +2 more sources

Westernmost occurrence of the dusky spinefoot Siganus luridus (Osteichthyes, Siganidae) along North African coasts

Arxius de Miscel-lània Zoològica, 2016
A specimen of dusky spinefoot Siganus luridus (Rüppel, 1829) was recorded in the peri-Mediterranean Lagoon of Bizerte located in northern Tunisia. This record constitutes the northernmost extension range of the species in the Tunisian waters, and the ...
K. Ounifi-Ben Amor, S. Rafrafi-Nouira, O. El Kamel-Moutalibi, M. M. Ben Amor   +3 more
doaj   +1 more source

Global analysis of DEF damage to concretes with and without fly-ash

Revista IBRACON de Estruturas e Materiais, 2021
Delayed Ettringite formation (DEF) is an internal expansive reaction that can damage concrete. DEF is strongly influenced by the temperature, above about 60-65°C, and other factors involving cement chemistry especially, but also its physical ...
Nicole Pagan Hasparyk, Dioice Schovanz, Francieli Tiecher, Selmo Chapira Kuperman   +3 more
doaj   +1 more source

Expansion in perfect groups

, 2012
Let Ga be a subgroup of GL_d(Q) generated by a finite symmetric set S. For an integer q, denote by Ga_q the subgroup of Ga consisting of the elements that project to the unit element mod q.
A. Borel, A. Cano, A. Eskin, A. Gamburd, A. Gamburd, A. Lubotzky, Alireza Salehi Golsefidy, D. Richardson, D.A. Kazhdan, D.D. Long, E. Breuillard, E. Breuillard, E. Breuillard, F. Grunewald, F. Grunewald, G.A. Margulis, H. Abels, H. Kesten, H.A. Helfgott, H.A. Helfgott, H.H. Kim, I. Farah, J. Bourgain, J. Bourgain, J. Bourgain, J. Bourgain, J. Bourgain, J. Bourgain, J. Bourgain, J. Dodziuk, L. Clozel, M. Burger, M. Lackenby, M.V. Nori, N. Alon, N. Alon, N. Nikolov, O. Dinai, P. Sarnak, P.P. Varjú, Péter P. Varjú, R.M. Guralnick, S. Hoory, T. Becker, T. Springer, V. Landazuri, W.T. Gowers, Y. Shalom   +47 more
core   +1 more source

Expansive learning

, 2019
Chapter six explores the concept of ‘expansive learning’ taken from Fuller and Unwin’s (2003) research of apprenticeships where they identified a ‘restrictive- expansive continuum’ that classified the type of learning environment presented in the work place.
Holbery, Natalie, Morley, Dawn, Mitchell, Joady   +2 more
openaire   +2 more sources

Adiabatic Product Expansion

, 1996
The time-evolution operator for an explicitly time-dependent Hamiltonian is expressed as the product of a sequence of unitary operators. These are obtained by successive time-dependent unitary transformations of the Hilbert space followed by the ...
Ali Mostafazadeh, Berry, Bohm, Jackiw, Messiah, Mostafazadeh   +5 more
core   +2 more sources

Wind Performance of New and Existing Continuous Beam Bridges During Construction Stages

Buildings
This study assesses the wind resistance and vortex-induced vibration (VIV) risks of the Dongzhou River Bridge in China reconstruction during critical construction stages.
Fulin Yang, Xinmin Zhang, Zeen Xie, Jianming Hao   +3 more
doaj   +1 more source

Alternating N-Expansions

Integers, 2021
See the abstract in the attached pdf.
Dajani, Karma, Langeveld, Niels
openaire   +4 more sources

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski, Michael C. Frühwald, Gudrun Fleischhack, Stephan Tippelt, Pablo Hernáiz‐Driever, Olaf Witt, Astrid Gnekow, Christof Kramm, Matthias Eyrich, Johannes E. A. Wolf, Hermann Müller, Carsten Friedrich, Uwe R. Kordes, Denise Obrecht‐Sturm, Petra Ketteler, Barbara von Zezschwitz, Pascal Johann, Dominik Sturm, Karoline Nemes, Stefan Schönberger, Till Milde, Brigitte Bison, Monika Warmuth‐Metz, Torsten Pietsch, Ulrich Schüller, Arend Koch, David Capper, Martin Hasselblatt, Christian Thomas, Christian Hagel, Stefan M. Pfister, Felix Sahm, David T. W. Jones, Martin U. Schuhmann, Jürgen Krauss, Pedram Emami, Ahmed El Damaty, Rolf D. Kortmann, Rudolf Schwarz, Jürgen Debus, Mechthild Krause, Fabian Pohl, Holger Ottensmeier, Lisa Bußenius, Katja Baust, Andreas Faldum, Cecile Ronckers, Desiree Grabow, Martin Benesch, Thomas Perwein, Karin Dieckmann, Irene Slavc, Johannes Gojo, Nicolas U. Gerber, André O. von Bueren, Katrin Scheinemann, Gabriele Calaminus, Beate Timmermann, Ulrich‐Wilhelm Thomale, Martin Mynarek   +59 more
wiley   +1 more source