A Language Shift Simulation Based on Cellular Automata

2011 ◽  
pp. 136-151 ◽  
Author(s):  
Francesc S. Beltran ◽  
Salvador Herrando ◽  
Violant Estreder ◽  
Doris Ferreres ◽  
Marc-Antoni Adell ◽  
...  
Keyword(s):  
Cellular Automata ◽  
Cellular Automaton ◽  
Language Shift ◽  
Automata Theory ◽  
Theory Approach ◽  
Southern Europe ◽  
Social Phenomenon ◽  
Simulation Based ◽  
The World ◽  
Traditional Language

Language extinction is a widespread social phenomenon affecting several million people throughout the world today. By the end of this century, more than 5100 of the approximately 6000 languages currently spoken around the world will have disappeared. This is mainly because of language shifts, i.e., because a community of speakers stops using their traditional language and speaks a new one in all communication settings. In this study, the authors present the properties of a cellular automaton that incorporates some assumptions from the Gaelic-Arvanitika model of language shifts and the findings on the dynamics of social impacts in the field of social psychology. To assess the cellular automaton, the authors incorporate empirical data from Valencia (a region in Southern Europe), where Catalan speakers are tending to shift towards using Spanish. Running the automaton under different scenarios, the survival or extinction of Catalan in Valencia depends on individuals’ engagement with their language. The authors discuss how a cellular automata theory approach proves to be a useful tool for understanding the language shift.

Simulating Self-Regeneration and Self-Replication Processes Using Movable Cellular Automata with a Mutual Equilibrium Neighborhood

2020 ◽  
Vol 29 (4) ◽  
pp. 741-757
Author(s):  
Kateryna Hazdiuk ◽  
◽  
Volodymyr Zhikharevich ◽  
Serhiy Ostapov ◽  
◽  
...  
Keyword(s):  
Cellular Automata ◽  
Cellular Automaton ◽  
Three Dimensional ◽  
Computer Models ◽  
The Self ◽  
Model Construction ◽  
Natural Phenomena ◽  
Different Types ◽  
Movable Cellular Automata ◽  
Self Replication

This paper deals with the issue of model construction of the self-regeneration and self-replication processes using movable cellular automata (MCAs). The rules of cellular automaton (CA) interactions are found according to the concept of equilibrium neighborhood. The method is implemented by establishing these rules between different types of cellular automata (CAs). Several models for two- and three-dimensional cases are described, which depict both stable and unstable structures. As a result, computer models imitating such natural phenomena as self-replication and self-regeneration are obtained and graphically presented.

scholarly journals Forecast Hesitancy: Why are People Reluctant to Believe, Accept, or Respond to Various Weather, Water, and Climate Hazard-Related Forecasts?

2021 ◽  
Author(s):  
Michael H. Glantz ◽  
Gregory E. Pierce
Keyword(s):  
Vaccine Hesitancy ◽  
Social Phenomenon ◽  
Targeted Interventions ◽  
Personal Risk ◽  
Societal Value ◽  
The Social ◽  
The World ◽  
Near Term ◽  
Risk Reducing ◽  
Delayed Responses

AbstractCurrent discussions of the social phenomenon of “vaccine hesitancy” with regard to Covid-19 provide an opportunity to use hesitancy as a means to shift thinking about untimely and delayed responses to forecasts of hydrometeorological hazards. Hesitancy, that is, provides a paradigm through which such regrettably delayed responses to hydromet hazards might be better understood and effectively addressed. Without exaggeration, just about every hydromet event provides an example of how hesitancy hinders individual, community, and national government risk-reducing preventive and mitigative responses to forecasts of foreseeable, relatively near-term climate, water, or weather hazards. Reasons for such hesitancy (for vaccine and forecast use alike) include—among others—lack of trust in the science, lack of confidence in government, and persistent concern about the uncertainties that surround forecasting—both meteorological and public health. As such, a better understanding of the causes that lead to individual and group hesitancy can better inform hydromet forecasters and affected communities about ways in which beneficial actions in response to timely forecasts are often delayed. This better understanding will facilitate, where necessary, targeted interventions to enhance the societal value of forecasting by reducing this long-observed challenge of “forecast hesitancy.” First, this article focuses on incidents of “vaccine hesitancy” that, for various reasons, people around the world are even now experiencing with regard to several now-available, and confirmed efficacious, Covid-19 vaccines. Reports of such incidents of indecisiveness first increased dramatically over the first few months of 2021, despite the strong scientific confidence that vaccination would significantly lower personal risk of contracting as well as spreading the virus. After, the notion of forecast hesitancy with regard to hydrometeorological hazards is discussed.It’s not what you say, it’s what people hear.-Frank Luntz (2007)

A STUDY OF BIFURCATIONS IN A CIRCULAR REAL CELLULAR AUTOMATON

1993 ◽  
Vol 03 (02) ◽  
pp. 293-321 ◽  
Author(s):  
JÜRGEN WEITKÄMPER
Keyword(s):  
Hopf Bifurcation ◽  
Dynamical Systems ◽  
Cellular Automata ◽  
Cellular Automaton ◽  
Parallel Computers ◽  
Discrete Dynamical Systems ◽  
Two Dimensional ◽  
Bifurcation Structure ◽  
Logistic Mapping ◽  
Henon Mapping

Real cellular automata (RCA) are time-discrete dynamical systems on ℝN. Like cellular automata they can be obtained from discretizing partial differential equations. Due to their structure RCA are ideally suited to implementation on parallel computers with a large number of processors. In a way similar to the Hénon mapping, the system we consider here embeds the logistic mapping in a system on ℝN, N>1. But in contrast to the Hénon system an RCA in general is not invertible. We present some results about the bifurcation structure of such systems, mostly restricting ourselves, due to the complexity of the problem, to the two-dimensional case. Among others we observe cascades of cusp bifurcations forming generalized crossroad areas and crossroad areas with the flip curves replaced by Hopf bifurcation curves.

Verbal Group Complexes Application In Palang Tamak Text Systemic Functional Linguistics Perspective

2021 ◽  
Vol 2 (2) ◽  
pp. 1-16
Author(s):  
I Ketut Suardana ◽  
Keyword(s):  
Systemic Functional Linguistics ◽  
Moral Values ◽  
Theory Approach ◽  
Narrative Texts ◽  
Moral Value ◽  
Real Condition ◽  
Functional Linguistics ◽  
Verbal Process ◽  
The World ◽  
Verbal Group

Pan Balang Tamak text is one of Balinese narrative texts developing in Balinese communities. This text contains very deep moral value that is very useful for communities to achieve happiness in the world. The moral values embed in the clauses constructing the text in metaphorical meaning. Many clauses constructing the text contain verbal group complexes in which describe kinds of actions done by the participants. This paper analyzes the application of verbal group complexes in Pan Balang Tamak text written by Suptra (2014). The theory used to analyze the verbal group complexes is the theory of group complex from Systemic Functional Linguistics from Halliday (2014). The paper used qualitative research, namely by the theory approach, the technique used is based on syntagmatic and paradigmatic based on field, tenor, mode. The result of the research suggested that both verbal group complexes in paratactic and in hypotactic were found in the text. Paratactic can be found in the way of the communities respect their bad behavior and the real condition happening to all animal living in the forest. The hypotactic were found the clauses which contain the effort to trap Pan Balang Tamak and the advantages obtained by Pan Balang Tamak from the efforts which be trap Pan Balang Tamak. Projection verb can be found in verbal process in which mean proposal, namely, the willing to trap Pan Balang Tamak

Simulation of microstructure evolution during recrystallization using a high resolution three dimensional cellular automaton

2004 ◽  
Vol 120 ◽  
pp. 225-230
Author(s):  
P. Mukhopadhyay ◽  
M. Loeck ◽  
G. Gottstein
Keyword(s):  
High Resolution ◽  
Cellular Automata ◽  
Cellular Automaton ◽  
Microstructure Evolution ◽  
Static Recrystallization ◽  
Three Dimensional ◽  
Computation Time ◽  
Recrystallization Process ◽  
Recovery Condition ◽  
Physically Based

A more refined 3D cellular Automata (CA) algorithm has been developed which has increased the resolution of the space and reduced the computation time and can take care of the complexity of recrystallization process through physically based solutions. This model includes recovery, condition for nucleation and orientation dependent variable nuclei growth as a process of primary static recrystallization. Incorporation of microchemistry effects makes this model suitable for simulating recrystallization behaviour in terms of texture, kinetics and microstructure of different alloys. The model is flexible to couple up with other simulation programs on a common database.

A Simple Three-States Cellular Automaton for Modelling Excitable Media

1998 ◽  
Vol 12 (05) ◽  
pp. 601-607 ◽  
Author(s):  
M. Andrecut
Keyword(s):  
Wave Propagation ◽  
Partial Differential Equations ◽  
Cellular Automata ◽  
Differential Equations ◽  
Cellular Automaton ◽  
Cellular Automaton Model ◽  
Excitable Media ◽  
Self Organization ◽  
Partial Differential ◽  
Bz Reaction

Wave propagation in excitable media provides an important example of spatiotemporal self-organization. The Belousov–Zhabotinsky (BZ) reaction and the impulse propagation along nerve axons are two well-known examples of this phenomenon. Excitable media have been modelled by continuous partial differential equations and by discrete cellular automata. Here we describe a simple three-states cellular automaton model based on the properties of excitation and recovery that are essential to excitable media. Our model is able to reproduce the dynamics of patterns observed in excitable media.

scholarly journals Women neurosurgeons around the world: a systematic review

2021 ◽  
Vol 50 (3) ◽  
pp. E12
Author(s):  
Tina Lulla ◽  
Rosemary T. Behmer Hansen ◽  
Cynthia A. Smith ◽  
Nicole A. Silva ◽  
Nitesh V. Patel ◽  
...  
Keyword(s):  
Systematic Review ◽  
Gender Equity ◽  
Glass Ceiling ◽  
English Language ◽  
Gender Disparity ◽  
Gender Disparities ◽  
Theory Approach ◽  
Physical Burden ◽  
The World ◽  
Country Specific

OBJECTIVEGender disparities in neurosurgery have persisted even as the number of female medical students in many countries has risen. An understanding of the current gender distribution of neurosurgeons around the world and the possible factors contributing to country-specific gender disparities is an important step in improving gender equity in the field.METHODSThe authors performed a systematic review of studies pertaining to women in neurosurgery. Papers listed in PubMed in the English language were collected. A modified grounded theory approach was utilized to systematically identify and code factors noted to contribute to gender disparities in neurosurgery. Statistical analysis was performed with IBM SPSS Statistics for Windows.RESULTSThe authors identified 39 studies describing the density of women neurosurgeons in particular regions, 18 of which documented the proportion of practicing female neurosurgeons in a single or in multiple countries. The majority of these studies were published within the last 5 years. Eight factors contributing to gender disparity were identified, including conference representation, the proverbial glass ceiling, lifestyle, mentoring, discrimination, interest, salary, and physical burden.CONCLUSIONSThe topic of women in neurosurgery has received considerable global scholarly attention. The worldwide proportion of female neurosurgeons varies by region and country. Mentorship was the most frequently cited factor contributing to noted gender differences, with lifestyle, the glass ceiling, and discrimination also frequently mentioned. Future studies are necessary to assess the influence of country-specific sociopolitical factors that push and pull individuals of all backgrounds to enter this field.

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