scholarly journals Emergence of adaptive global movement from a subjective inference about local resource distribution

2021 ◽  
pp. 101518
Author(s):  
Tomoko Sakiyama
Keyword(s):  
Resource Distribution ◽  
Local Resource ◽  
Global Movement

scholarly journals Emergence of an Adaptive Movement from a Subjective Inference about Resource Distribution

2020 ◽  
Author(s):  
Tomoko Sakiyama
Keyword(s):  
Random Walk ◽  
Search Strategy ◽  
Resource Distribution ◽  
Simple Random Walk ◽  
Food Distribution ◽  
Local Resource ◽  
Random Walkers ◽  
Resource Searching ◽  
Proposed Model ◽  
Global Food

Abstract Background: In animal foraging, the optimal search strategy in an unknown environment varies according to the context. When food is distributed sparsely and randomly, super-diffusive walks outperform normal-diffusive walks. However, super-diffusive walks are no longer advantageous when random walkers forage in a resource-rich environment. It is not currently clear whether a relationship exists between an agent’s use of local information to make subjective inferences about global food distribution and an optimal random walk strategy. Methods: Therefore, I investigated how flexible exploration is achieved if an agent alters its directional rule based on local resource distribution. In the proposed model, the agent, a Brownian-like walker, estimates global resource distribution using local resource patterns and makes a decision by altering its rules. Results: I showed that the agent behaved like a non-Brownian walker and the model adaptively switched between diffusive properties depending on the resource density. This led to a more effective resource-searching performance compared with that of a simple random-walk model. Conclusion: These results demonstrate a process of optimal searching dependent on context.

Spatial dependency in local resource distributions.

2018 ◽  
Vol 12 (3) ◽  
pp. 163-172 ◽  
Author(s):  
Andreas Wilke ◽  
Josie Lydick ◽  
Valaree Bedell ◽  
Taylor Dawley ◽  
Jordan Treat ◽  
...  
Keyword(s):  
Spatial Dependency ◽  
Local Resource ◽  
Resource Distributions

Becoming Present, Becoming Absent: Movement and Visual Form in the Film Adaptation of Comédie

2012 ◽  
Vol 21 (2) ◽  
pp. 157-180
Author(s):  
David Foster
Keyword(s):  
The Other ◽  
Film Adaptation ◽  
Visual Form ◽  
Sergei Eisenstein ◽  
Basic Framework ◽  
Global Movement ◽  
Local Movement

This article examines the use of movement and visual form in the film adaptation of Samuel Beckett's Comédie (Marin Karmitz, 1966). The article broaches the kinetic elements of the work through addressing the manner in which the diegetic motion of the film can be seen to reflect extra-diegetic cinematic processes. The sense of movement that is created through Comédie's montage is then considered at length, making use of work on this theme by two quite different (though tangentially related) theorists: Sergei Eisenstein and Jean-François Lyotard. The article then charts the film's different manifestations of formal movement, and a basic framework is proposed to explain the manner in which the film creates moments of intensity, through what is termed the ‘local movement’ of the montage, and the manner in which the film manifests an overall curve of intensity, through what is termed the montage's ‘global movement’. It is argued that each form of montagic motion is reflected in the other, and that ultimately these movements might be seen to dramatise a human drive towards, and a concomitant flight from, an impossible state of ontological totality.

The Transnational Women's Rights Movement and the World Economy

2020 ◽  
Vol 6 (2) ◽  
pp. 145-173 ◽  
Author(s):  
Heidi E. Rademacher
Keyword(s):  
Women's Rights ◽  
Small Body ◽  
World System ◽  
World Society ◽  
Women’S Rights ◽  
Social Movement Organizations ◽  
Global Movement ◽  
Negative Effect ◽  
Society Perspective ◽  
The Impact

Promoting the ratification of the Convention on the Elimination of All Forms of Discrimination against Women (CEDAW) was a key objective of the transnational women's movement of the 1980s and 1990s. Yet, few studies examine what factors contribute to ratification. The small body of literature on this topic comes from a world-society perspective, which suggests that CEDAW represented a global shift toward women's rights and that ratification increased as international NGOs proliferated. However, this framing fails to consider whether diffusion varies in a stratified world-system. I combine world-society and world-systems approaches, adding to the literature by examining the impact of women's and human rights transnational social movement organizations on CEDAW ratification at varied world-system positions. The findings illustrate the complex strengths and limitations of a global movement, with such organizations having a negative effect on ratification among core nations, a positive effect in the semiperiphery, and no effect among periphery nations. This suggests that the impact of mobilization was neither a universal application of global scripts nor simply representative of the broad domination of core nations, but a complex and diverse result of civil society actors embedded in a politically stratified world.

Of Whales and Dugongs: Examining the Rise of Colonial Conservation as Development in Madagascar’s Marine History

2020 ◽  
Author(s):  
Merrill Baker-Médard
Keyword(s):  
Conservation Policy ◽  
Marine Conservation ◽  
Colonial Period ◽  
Marine Resources ◽  
Current Conservation ◽  
Dual Purpose ◽  
Local Resource ◽  
Conservation And Development ◽  
The Way

This work explores how colonial marine conservation policy in Madagascar had the dual purpose of facilitating the expansion of capital and ‘civilising’ the way Malagasy fishers used marine resources. I analyse how the legacy of narratives that emerged to bolster state-led conservation intervention during the colonial period are still present in current conservation and development narratives, perpetuating in some cases the coloniser–colonised relationship between conservation organisations and local resource users. These findings indicate a need to revamp certain aspects of marine conservation legislation in Madagascar and the need for conservation organisations to explicitly acknowledge this history when working with local resource users in order to avoid reproducing historical injustices.

Sign in / Sign up

Export Citation Format

Share Document