Role of environmental, historical and spatial processes in the structure of Neotropical primate communities: contrasting taxonomic and phylogenetic perspectives

2012 ◽  
Vol 22 (5) ◽  
pp. 607-619 ◽  
Author(s):  
Maria Mercedes Gavilanez ◽  
Richard D. Stevens
Keyword(s):  
Spatial Processes ◽  
Primate Communities ◽  
Neotropical Primate

Role of environmental and spatial processes in structuring anuran communities across a tropical rain forest

2012 ◽  
Vol 37 (8) ◽  
pp. 865-873 ◽  
Author(s):  
DIANA PATRICIA ROJAS-AHUMADA ◽  
VICTOR LEMES LANDEIRO ◽  
MARCELO MENIN
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Spatial Processes

scholarly journals Visuo-spatial processes as a domain-general factor impacting numerical development in atypical populations

2017 ◽  
Vol 3 (2) ◽  
pp. 344-364 ◽  
Author(s):  
Virginie Crollen ◽  
Olivier Collignon ◽  
Marie-Pascale Noël
Keyword(s):  
Numerical Cognition ◽  
Verbal Learning ◽  
General Factor ◽  
Learning Disorder ◽  
Spatial Processes ◽  
Educational Strategies ◽  
Domain Specific ◽  
Numerical Development ◽  
And Mathematics

In the past few years, the role of both domain-specific and domain-general factors on numerical development and mathematics achievement has been debated. In this paper, we focus on the role of visuo-spatial processes. We will more particularly review the numerical abilities of populations presenting atypical visuo-spatial processes: individuals with blindness, hemineglect, children presenting low visuo-spatial abilities, non-verbal learning disorder or Williams syndrome. We will show that math abilities of each population are relatively unique and are not necessarily associated with generalized math impairment. We will show that a better understanding of the strengths and weaknesses of each population gives further insights into our conceptual understanding of the development of numerical cognition. We will finally demonstrate how the comparison across disorders can impact on practical rehabilitation and educational strategies.

scholarly journals Residential segregation and socio-spatial processes in Marseille. Urban social sustainability challenge

2021 ◽  
Vol 52 (52) ◽  
pp. 25-38
Author(s):  
Anna Grzegorczyk
Keyword(s):  
Residential Segregation ◽  
Economic Restructuring ◽  
Social Sustainability ◽  
Literature Analysis ◽  
Spatial Processes ◽  
Qualitative Interpretation ◽  
Social Segregation ◽  
The Social ◽  
Historical Role

Abstract The aim of the study is to determine the scale and patterns of the social segregation of Aix-Marseille-Provence Metropolis and Marseille, in the light of the socio-spatial processes it is currently undergoing and its influence on social sustainability. In the study, quantitative measures of segregation are confronted with a qualitative interpretation of existing facts gathered during literature analysis and field observations. Population groups most subject to residential segregation are revealed, together with the areas of the greatest concentration of particular population categories. Changes of concentration pattern in the decade 2007–2017 are indicated and the role of gentrification and privatiszation of land, which are all conditioned in Marseille by the city's economic restructuring, liberal housing policy and historical role of the port-industrial system.

The Structure of Ontogenies in a Model Protocell

2016 ◽  
Vol 22 (4) ◽  
pp. 499-517 ◽  
Author(s):  
Eran Agmon ◽  
Alexander J. Gates ◽  
Randall D. Beer
Keyword(s):  
Life Span ◽  
Structural Changes ◽  
Regulatory Mechanism ◽  
Analytical Techniques ◽  
Initial Step ◽  
Spatial Processes ◽  
Variable Environments ◽  
Structural Configurations ◽  
Morphology Changes

Emergent individuals are often characterized with respect to their viability: their ability to maintain themselves and persist in variable environments. As such individuals interact with an environment, they undergo sequences of structural changes that correspond to their ontogenies. Ultimately, individuals that adapt to their environment, and increase their chances of survival, persist. This article provides an initial step towards a more formal treatment of these concepts. A network of possible ontogenies is uncovered by subjecting a model protocell to sequential perturbations and mapping the resulting structural configurations. The analysis of this network reveals trends in how the protocell can move between configurations, how its morphology changes, and how the role of the environment varies throughout. Viability is defined as expected life span given an initial configuration. This leads to two notions of adaptivity: a local adaptivity that addresses how viability changes in plastic transitions, and a global adaptivity that looks at longer-term tendencies for increased viability. To demonstrate how different protocell-environment pairings produce different patterns of ontogenic change, we generate and analyze a second ontogenic network for the same protocell in a different environment. Finally, the mechanisms of a minimal adaptive transition are analyzed, and it is shown that these rely on distributed spatial processes rather than an explicit regulatory mechanism. The combination of this model and analytical techniques provides a foundation for studying the emergence of viability, ontogeny, and adaptivity in more biologically realistic systems.

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