Search results for "communitie"
showing 10 items of 385 documents
LE REGIONI D'EUROPA TRA IDENTITÀ LOCALI, NUOVE COMUNITÀ E DISPARITÀ TERRITORIALI
2019
L’Europa è oggi attraversata da una forte domanda di autonomia da parte dei territori: da un lato, a tutela dell’identità delle comunità locali e, dall’altro, per la crescente rivendicazione di una più ampia rappresentanza delle cittadinanze. Queste istanze possono, però, mettere a rischio gli obiettivi di equilibrio e di coesione economica, sociale e territoriale, da sempre al centro della riflessione e delle proposte sviluppate dagli studiosi delle scienze regionali. La recente crisi ha acuito l’instabilità e allargato i complessivi divari tra le regioni, anche nella loro dinamica interna di evoluzione. Alla resilienza economica non sempre è corrisposto, nell’attuale transizione verso un …
Coincidental loss of bacterial virulence in multi-enemy microbial communities.
2014
The coincidental virulence evolution hypothesis suggests that outside-host selection, such as predation, parasitism and resource competition can indirectly affect the virulence of environmentally-growing bacterial pathogens. While there are some examples of coincidental environmental selection for virulence, it is also possible that the resource acquisition and enemy defence is selecting against it. To test these ideas we conducted an evolutionary experiment by exposing the opportunistic pathogen bacterium Serratia marcescens to the particle-feeding ciliate Tetrahymena thermophila, the surfacefeeding amoeba Acanthamoeba castellanii, and the lytic bacteriophage Semad11, in all possible combi…
Is ecosystem size more important than locality in determining the environmental characteristics of temporary ponds?.
2017
Ecosystem size plays a key role in determining ecosystem functioning, affecting community stability and structure at both trophic and taxonomic levels. However, less is known about the influence of ecosystem size on environmental characteristics; for example, do larger ecosystems have higher nutrient availability? The nature of this relationship is important for gaining a better understanding of whether the effects of ecosystem size on community functioning are direct or indirect. Indirect effects may exist when the environmental characteristics of larger ecosystems are different from those of smaller ones, and thus the different functioning of communities observed along the ecosystem-size …
THE IMPACT OF HEADMASTER’S LEADERSHIP PRACTICE ON THE FORMATION OF A PROFESSIONAL LEARNING COMMUNITY AT SCHOOL
2019
In the context of general education content reform initiated in Latvia, which also provides change of teaching approach, the issue of the role of headmaster has raised. The introduction and implementation of competence approach requires strengthening and development of cooperation between teachers in professional learning communities (PLCs) at school, in order to address didactic issues, regularly analyze pupils` learning outcomes and find best ways to increase the learning outcomes of each pupil, and give an opportunity for teachers to improve their teaching by sharing good pedagogical practice. The change of teaching approach prompts a revision of school management practices as well. In o…
Experiences from global e-collaboration: Contextual influences on technology adoption and use
2005
The article presents a cross-case comparison of experiences from organizational adoption and use of e-collaboration technologies in two large global companies. Challenges in the global implementation process were found to increase with the organizational and geographical scope of the implementation, level of autonomy in the adoption process, cultural diversity, technological heterogeneity, and level of work process support embedded in the system. Alignment with existing collaborative work practices resulted in faster adoption of the technological solution. Highly competitive conditions restricted the resources available for training and experience transfer between projects. Clients’ prefere…
Becoming Politically Active: Life Courses and the Formation of Capitals among Young People of Migrant Origin in Finland
2020
This article focuses on the life courses of young people of migrant origin who are active in civic and political fields in Finland. The aim is to analyse, from the micro-level life course perspective, the issues in their lives that have helped them to become active. The article draws on empirical data collected using participatory methods. Four young people of migrant origin participated in the research process and contributed to the data analysis. The theoretical framework consists of Bourdieusian concepts of political habitus and emotional, cultural and social capital. The article shows that participants gained strong emotional capital during their childhood, which laid the groundwork for…
The microbiology of Lascaux Cave.
2010
Lascaux Cave (Montignac, France) contains paintings from the Upper Paleolithic period. Shortly after its discovery in 1940, the cave was seriously disturbed by major destructive interventions. In 1963, the cave was closed due to algal growth on the walls. In 2001, the ceiling, walls and sediments were colonized by the fungus Fusarium solani. Later, black stains, probably of fungal origin, appeared on the walls. Biocide treatments, including quaternary ammonium derivatives, were extensively applied for a few years, and have been in use again since January 2008. The microbial communities in Lascaux Cave were shown to be composed of human-pathogenic bacteria and entomopathogenic fungi, the for…
Human rights and the environment: A hard balance to strike
2017
This article is dedicated to the analysis of the uneasy relationship between human rights and the environment. Its first part focuses on new proposals such as the greening of human rights, the development of procedural environmental rights and the creation of specific environmental rights, aimed at the harmonization between human rights and environmental protection. The second part focuses on groups whose rights are particularly at risk vis à vis environmental protection activities: indigenous peoples and local communities. The article then analyses current trends of change in the relationship between indigenous peoples and local communities rights and the protection of the environment than…
Phytoplankton communities of polar regions–Diversity depending on environmental conditions and chemical anthropopressure
2015
The polar regions (Arctic and Antarctic) constitute up to 14% of the biosphere and offer some of the coldest and most arid Earth's environments. Nevertheless several oxygenic phototrophs including some higher plants, mosses, lichens, various algal groups and cyanobacteria, survive that harsh climate and create the base of the trophic relationships in fragile ecosystems of polar environments. Ecosystems in polar regions are characterized by low primary productivity and slow growth rates, therefore they are more vulnerable to disturbance, than those in temperate regions. From this reason, chemical contaminants influencing the growth of photoautotrophic producers might induce serious disorders…
Evaluating the citywide Edinburgh 20mph speed limit intervention effects on traffic speed and volume: A pre-post observational evaluation.
2021
Objectives Traffic speed is important to public health as it is a major contributory factor to collision risk and casualty severity. 20mph (32km/h) speed limit interventions are an increasingly common approach to address this transport and health challenge, but a more developed evidence base is needed to understand their effects. This study describes the changes in traffic speed and traffic volume in the City of Edinburgh, pre- and 12 months post-implementation of phased city-wide 20mph speed limits from 2016–2018. Methods The City of Edinburgh Council collected speed and volume data across one full week (24 hours a day) pre- and post-20mph speed limits for 66 streets. The pre- and post-sp…