Hasil untuk "nlin.AO"

Menampilkan 20 dari ~153167 hasil · dari CrossRef, arXiv

JSON API
CrossRef Open Access 2021
Ka ao, ka ao, ka awatea: Emergent Māori experiences of education employment transition

Moana Mitchell

<p>The significance of genealogy on Māori transitions between education and employment is often not appreciated as a valid body of knowledge. This research seeks to consider a family history of Māori ‘education towards employment’ experiences and the ensuing conversations that have occurred as part of those experiences. Of major focus is the influence of state policy on systems that have educated Māori to become employable or unemployable, highlighting the often insidious nature of the underlying themes of assimilation, cultural adaptation and integration that have underpinned these policies.  Kaupapa Māori theory is engaged as the methodological approach for this research, while a ‘hypothetical dialogue’, counter-storying and Critical Race Theory (CRT) form the theoretical frameworks for analysing the historical and contemporary narratives provided. What this enables is the positioning of a Māori lens with which to understand the inherent values, beliefs and experiential learning that emerge through using autoethnography and more specifically, indigenous autoethnography. This research details a series of conversations that portray the education-employment transitions of different generations of the researcher’s family. It is a highly personalised account shared to provide insight into the effect of policy on these transitions. Accompanied by scholarly commentary, the thematic material is derived from the collection and analysis of primary data such as genealogical and personal experience, which includes the analysis of family narratives and the observation of hui/meetings.1 Secondary data includes literature and review of policy, which provided a baseline for the research.  The findings of the research establish deficit thinking as a distinctive, historic and recurring feature of systems that are supposed to educate Māori for employment, but which instead continue to educate and transition a significant number of young Māori into unemployment, underemployment and temporary employment arrangements. These findings contribute to the development of an initiative that supports Māori transitions between education and employment, and which looks to the design of a community hub dedicated to educating whole families at a grassroots level; specifically focusing on a group of parents and whānau studying towards an undergraduate qualification based at their local kura/school.</p>

CrossRef Open Access 2020
Longitudinal time-lapse in vivo micro-CT reveals differential patterns of peri-implant bone changes after subclinical bacterial infection in a rat model

Vincent A. Stadelmann, Keith Thompson, Stephan Zeiter et al.

AbstractSubclinical infection associated with orthopedic devices can be challenging to diagnose. The goal of this study was to evaluate longitudinal, microcomputed tomography (microCT) imaging in a rat model of subclinical orthopedic device-related infection caused byStaphylococcus epidermidisand four differentCutibacterium(previouslyPropionibacterium)acnesstrains, and compare outcomes with non-inoculated and historicalS. aureus-inoculated controls. Sterile screws or screws colonized with bacteria were placed in the tibia of 38 adult Wistar rats [n = 6 sterile screws; n = 6S. epidermidis-colonized screws; n = 26C. acnes-colonized screws (covering all three main subspecies)]. Regular microCT scans were taken over 28 days and processed for quantitative time-lapse imaging with dynamic histomorphometry. At euthanasia, tissues were processed for semiquantitative histopathology or quantitative bacteriology. All rats receiving sterile screws were culture-negative at euthanasia and displayed progressive bony encapsulation of the screw. All rats inoculated withS. epidermidis-colonized screws were culture-positive and displayed minor changes in peri-implant bone, characteristic of subclinical infection. Five of the 17 rats in theC. acnesinoculated group were culture positive at euthanasia and displayed bone changes at the interface of the screw and bone, but not deeper in the peri-implant bone. Dynamic histomorphometry revealed significant differences in osseointegration, bone remodeling and periosteal reactions between groups that were not measurable by visual observation of still microCT images. Our study illustrates the added value of merging 3D microCT data from subsequent timepoints and producing inherently richer 4D data for the detection and characterization of subclinical orthopedic infections, whilst also reducing animal use.

12 sitasi en
arXiv Open Access 2020
Pattern in non-linearly coupled network of identical Thomas oscillators

Vinesh Vijayan, Biplab Ganguli

We have investigated synchronized pattern in a network of Thomas oscillators coupled with sinusoidal nonlinear coupling. Pattern like chimera states are not only observed for many non-locally coupled oscillators but there is a signature of it even for locally coupled few oscillators. For certain range of intermediate coupling, clusters are also observed. These patterns do resemble with motion of real self propelled coupled dynamical systems.

arXiv Open Access 2015
Transient dynamics of pulse-coupled oscillators with nonlinear charging curves

Kevin P. O'Keeffe

We consider the transient behavior of globally coupled systems of identical pulse coupled oscillators. Synchrony develops through an aggregation phenomenon, with clusters of synchronized oscillators forming and growing larger in time. Previous work derived expressions for these time dependent clusters, when each oscillator obeyed a linear charging curve. We generalize these results to cases where the charging curves have nonlinearities

arXiv Open Access 2013
Event-based Bipartite Consensus on Signed Networks

Yulong Zhou, Jiangping Hu

In this paper, a bipartite consensus problem for a multi-agent system is formulated firstly. Then an event-based interaction rule is proposed for the multi-agent system with antagonistic interactions. The bipartite consensus stability is analyzed on the basis of spectral properties of the signed Laplacian matrix associated with multi-agent networks. Some simulation results are presented to illustrate the bipartite consensus with the proposed interaction rule.

en nlin.AO
arXiv Open Access 2012
Random consensus in nonlinear systems under fixed topology

Radha F. Gupta, Poom Kumam

This paper investigates the consensus problem in almost sure sense for uncertain multi-agent systems with noises and fixed topology. By combining the tools of stochastic analysis, algebraic graph theory, and matrix theory, we analyze the convergence of a class of distributed stochastic type non-linear protocols. Numerical examples are given to illustrate the results.

en nlin.AO
arXiv Open Access 2010
The Network of Mexican Cities

R. Mansilla, R. Mendozas

The network of 5823 cities of Mexico with a population more than 5000 inhabitants is studied. Our analysis is focused to the spectral properties of the adjacency matrix, the small-world properties of the network, the distribution of the clustering coefficients and the degree distribution of the vertices. The connection of these features with the spread of epidemics on this network is also discussed.

en nlin.AO, q-bio.PE
arXiv Open Access 2009
Network of Perceptions

Fariel Shafee

The role of perception in conscious behavior and decision-making is examined. The effect of spatial and temporal stochasticity in the acquisition of beliefs is discussed. The idea of an agent as a locally strongly coupled group of states leads to the creation of energy minima in an interaction potential landscape. The interaction of such agent states and environment states acting at different levels of complexity and scale, subject to stochastically expressed interaction interfaces, may lead to asymmetry in perceptions. Agents possessing different perception related beliefs are then connected in a social network.

en nlin.AO
arXiv Open Access 2008
Neighborhood Chance and Neighborhood Change

Arnout Van de Rijt, David Siegel, Michael Macy

WITHDRAWAL NOTICE This paper has been withdrawn by the authors as required by the American Journal of Sociology, which has accepted the paper for publication. AJS will not publish papers if the preprint remains posted on arXiv.

en nlin.AO, physics.soc-ph
arXiv Open Access 2008
What is a Systems Approach?

Alex J. Ryan

What is a systems approach? The first step towards answering this question is an understanding of the history of the systems movement, which includes a survey of contemporary systems discourse. In particular, I examine how systems researchers differentiated their contribution from mechanistic science - but also from holistic doctrines; and identify the similarities and sharpest differences between complex systems and other systems approaches. Having set the scene, the second step involves developing a definition of 'system' consistent with the spirit of the systems approach.

en nlin.AO
arXiv Open Access 2007
The forget-remember mechanism for 2-state spreading

J. Gu, X. Cai

A new mechanism, the forget-remember mechanism, is proposed for studying the spreading process in 2-state model. Such mechanism exhibits behaviors of message spreading influenced by some kinds of functions about time and history caring about the individuals of the spreading system, holding message or being out of message. To demonstrate the mechanism, both linear and exponential forms for forget-function and remember-function are simulated and show that a great impact on the saturation of message-spreading and the relative phase transformation.

en nlin.AO
arXiv Open Access 2007
Phase reduction of stochastic limit cycle oscillators

Kazuyuki Yoshimura, Kenichi Arai

We point out that the phase reduction of stochastic limit cycle oscillators has been done incorrectly in the literature. We present a correct phase reduction method for oscillators driven by weak external white Gaussian noises. Numerical evidence demonstrates that the present phase equation properly approximates the dynamics of the original full oscillator system.

arXiv Open Access 2000
Remarks on scaling properties inherent to the systems with hierarchically organized supplying network

V. Gafiychuk, I. Lubashevsky, A. Stosyk

We study the emergence of a power law distribution in the systems which can be characterized by a hierarchically organized supplying network. It is shown that conservation laws on the branches of the network can, at some approximation, impose power law properties on the systems. Some simple examples taken from economics, biophysics etc. are considered.

en nlin.AO
arXiv Open Access 2006
Predicting Pre-monsoon Thunderstorms -A Statistical View through Propositional Logic

Surajit Chattopadhyay

Thunderstorms very close to a monsoon and not so close to a monsoon are considered in this analysis. Some important predictors are considered. Pearson Correlation Coefficient and lag-1 autocorrelation coefficients are calculated to create necessary universes of discourse for prepositional logic. The purpose is to make regression analysis more convenient for prediction of the pre-monsoon thunderstorm weather phenomenon.

en nlin.AO
arXiv Open Access 1999
A Simple Model of the Evolution of Simple Models of Evolution

Cosma Rohilla Shalizi, William A. Tozier

In the spirit of the many recent simple models of evolution inspired by statistical physics, we put forward a simple model of the evolution of such models. Like its objects of study, it is (one supposes) in principle testable and capable of making predictions, and gives qualitative insights into a hitherto mysterious process.

en nlin.AO, q-bio.PE
arXiv Open Access 1996
Phase Structure of Systems with Multiplicative Noise

G. Grinstein, M. A. Muñoz, Yuhai Tu

The phase diagrams and transitions of nonequilibrium systems with multiplicative noise are studied theoretically. We show the existence of both strong and weak-coupling critical behavior, of two distinct active phases, and of a nonzero range of parameter values over which the susceptibility is infinite in any dimension. A scaling theory of the strong-coupling transition is constructed.

en nlin.AO, cond-mat
arXiv Open Access 1999
Number-conserving cellular automaton rules

Nino Boccara, Henryk Fuks

A necessary and sufficient condition for a one-dimensional q-state n-input cellular automaton rule to be number-conserving is established. Two different forms of simpler and more visual representations of these rules are given, and their flow diagrams are determined. Various examples are presented and applications to car traffic are indicated. Two nontrivial three-state three-input self-conjugate rules have been found. They can be used to model the dynamics of random walkers.

en nlin.AO
arXiv Open Access 1994
Belavkin-Kolokoltsov Watch-Dog Effects in Interactively Controlled Stochastic Computer-Graphic Dynamical Systems. A Summary of Mathematical Researches

Denis V. Juriev

This paper contains a summary of mathematical researches of stochastic properties of the long time behavior of a continuously observed (and interactively controlled) quantum--field top. Applications to interactively controlled stochastic computer-graphic dynamical systems are also discussed.

en nlin.AO, math.DG

Halaman 5 dari 7659