Results 61 to 70 of about 290,972 (299)

From Fractal Groups to Fractal Sets [PDF]

, 2003
This paper is a survey, with few proofs, of ideas and notions related to self-similarity of groups, semi-groups and their actions. It attempts to relate these concepts to more familiar ones, such as fractals, self-similar sets, and renormalizable dynamical systems.
Bartholdi, Laurent, Grigorchuk, Rostislav, Nekrashevych, Volodymyr V.   +2 more
openaire   +3 more sources

Quantum Fractal Fluctuations [PDF]

Physical Review Letters, 2001
revtex, 4 pages, 5 ...
BENENTI, GIULIANO, CASATI, GIULIO, GUARNERI, ITALO, TERRANEO M.   +3 more
openaire   +4 more sources

Temporal and Cell‐Specific Regulation of Synaptic Homeostasis by the Chromatin Remodeler Chd1

Advanced Science, EarlyView.
Chd1, the Drosophila homologue of mammalian CHD2 ‐ a gene linked to autism, epilepsy, and intellectual disability, is required for synaptic homeostatic plasticity. Chd1 in glia is necessary for the rapid induction of synaptic homeostasis, whereas Chd1 in motoneurons, muscle, and glia is critical for long‐term maintenance.
Danielle T. Morency, Tao Cui, Yimei Cai, Chloe Lok, Rachel E. Nokku, Ruoxian Huang, Grace L. Chu, Yumeng Xie, Saleem W. Abu‐Tayeh, Kaikai He, Chengjie Qiu, Junyi Wang, Paxton M. Paganelli, Ting Wang, Gabrielle Williams, Sreejith Nair, Huadong Pei, Dion K. Dickman, Stefano Vicini, Tingting Wang   +19 more
wiley   +1 more source

Contemporaneidade e metodologias de ação: uma abordagem crítica em pesquisa [PDF]

Fractal: Revista de Psicologia
Resumo Um desafio colocado para a Psicologia Social consiste em acompanhar as transformações da contemporaneidade compreendendo, de modo crítico, os efeitos éticos e políticos que elas precipitam no cotidiano das populações.
Sonia Regina Vargas MANSANO,, Alexandre Bonetti LIMA, Joan PUJOL-TARRÉS, Marisela Montenegro MARTÍNEZ   +3 more
doaj   +2 more sources

Quantum fractal eigenstates [PDF]

Physica D: Nonlinear Phenomena, 1999
We study quantum chaos in open dynamical systems and show that it is characterized by quantum fractal eigenstates located on the underlying classical strange repeller. The states with longest life times typically reveal a scars structure on the classical fractal set.
Casati, Giulio, Maspero, Giulio, Shepelyansky, Dima L.   +2 more
openaire   +2 more sources

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

Advanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang, Xinyuan Ke, Andrew Heath, Richard J. Ball, Jiawei Xie, Jinchen Fan, Guisheng Li, Kevin Paine   +7 more
wiley   +1 more source

On the Lebesgue measure of one generalised set of subsums of geometric series

Математичні Студії
In the present paper, we study a set that can be treated as a generalised set of subsums for a geometric series. This object was discovered independently in various mathematical aspects.
O. P. Makarchuk, D. M. Karvatskyi
doaj   +1 more source

Apoio institucional: dispositivo na produção de usuária cuidadora [PDF]

Fractal: Revista de Psicologia
Resumo O presente trabalho tem como temática de estudo o Apoio Institucional, entendido como dispositivo, no campo da gestão em saúde coletiva, que visa ampliar a capacidade de análise e intervenção dos coletivos.
Aurea Maria Pires RODRIGUES,
doaj   +2 more sources

Anomalous diffusion on a fractal mesh

, 2016
An exact analytical analysis of anomalous diffusion on a fractal mesh is presented. The fractal mesh structure is a direct product of two fractal sets which belong to a main branch of backbones and side branch of fingers.
Iomin, Alexander, Kantz, Holger, Sandev, Trifce   +2 more
core   +1 more source

Fractal percolations

Banach Center Publications, 2018
One of the most well known random fractals is the so-called Fractal percolation set. This is defined as follows: we divide the unique cube in $\mathbb{R}^d$ into $M^d$ congruent sub-cubes. For each of these cubes a certain retention probability is assigned with which we retain the cube.
Simon, Károly, Vágó, Lajos
openaire   +2 more sources