Environmental Setting

Galapagos ◽  
2018 ◽  
pp. 9-32
2009 ◽  
Vol 364 (1527) ◽  
pp. 2275-2289 ◽  
Author(s):  
Anders Norman ◽  
Lars H. Hansen ◽  
Søren J. Sørensen

Comparative whole-genome analyses have demonstrated that horizontal gene transfer (HGT) provides a significant contribution to prokaryotic genome innovation. The evolution of specific prokaryotes is therefore tightly linked to the environment in which they live and the communal pool of genes available within that environment. Here we use the term supergenome to describe the set of all genes that a prokaryotic ‘individual’ can draw on within a particular environmental setting. Conjugative plasmids can be considered particularly successful entities within the communal pool, which have enabled HGT over large taxonomic distances. These plasmids are collections of discrete regions of genes that function as ‘backbone modules’ to undertake different aspects of overall plasmid maintenance and propagation. Conjugative plasmids often carry suites of ‘accessory elements’ that contribute adaptive traits to the hosts and, potentially, other resident prokaryotes within specific environmental niches. Insight into the evolution of plasmid modules therefore contributes to our knowledge of gene dissemination and evolution within prokaryotic communities. This communal pool provides the prokaryotes with an important mechanistic framework for obtaining adaptability and functional diversity that alleviates the need for large genomes of specialized ‘private genes’.


2018 ◽  
Vol 37 (2) ◽  
pp. 313-330 ◽  
Author(s):  
Jane Dyson

This paper uses long-term research in an Indian village to develop Karl Mannheim’s notion of each generation’s ‘fresh contact’ with their inherited social and environmental setting. I examine how a generation of young people re-apprehend their local environment following a period of migration. I argue that young people aged between 25 and 34 who have lived outside their locality re-appraise their village economically and spiritually when they return home. I point to the social nature of this ‘fresh contact’, its spatial character, and the high degree of reflexivity that young men display in discussing their own agency as a generation – a point that emerged especially clearly in their discussion of the term ‘ mahaul,’ a Hindi word meaning ‘atmosphere’. The paper contributes to geographical and anthropological work on youth agency by highlighting the utility of notions of fresh contact in specific social conjunctures, such as the migration of a particular cohort. At the same time, it suggests the importance of placing alongside Mannheim’s work an explicit focus on the spatial nature of fresh contact, the sociality that constitutes cohorts as generations, and young people’s reflexive capacity to theorise their generational agency.


2010 ◽  
Vol 57 (12) ◽  
pp. 1561-1572 ◽  
Author(s):  
D. Van Rooij ◽  
L. De Mol ◽  
E. Le Guilloux ◽  
M. Wisshak ◽  
V.A.I. Huvenne ◽  
...  

Fjords ◽  
1987 ◽  
pp. 19-69
Author(s):  
James P. M. Syvitski ◽  
David C. Burrell ◽  
Jens M. Skei

2021 ◽  
Author(s):  
Kazuaki Maebara ◽  
Jun Yaeda

<p>This study identifies behaviours that support self-understanding for people with autism spectrum disorder (ASD) participating in vocational rehabilitation. The qualitative research (Study 1) used conceptual analysis to identify vocational rehabilitation practitioners’ concept of support for self-understanding. The quantitative research (Study 2) surveyed 155 Japanese vocational rehabilitation practitioners using a questionnaire based on the results of Study 1. Exploratory factor analysis of the survey data determined the structure of behaviours that support self-understanding for people with ASD and found three behaviour types: ‘Environmental setting of the current situation’, ‘Promoting awareness of the current situation’, and ‘Reflection based on collected information’. A practitioner was deemed to promote self-understanding support by using a combination of these three behaviours while heeding to the disabling characteristics of people with ASD. Identified support behaviours could be used as a fundamental perspective to develop a support programme to promote self-understanding for people with ASD.</p>


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