Search results for "CONSERVATION"

Education for sustainable development : assessing the development impact of environmental education (EE) on Roatan, Honduras

2014

Master thesis in development management - University of Agder 2014 This study explores the effect of environmental education for children on Roatan, Honduras. Environmental education of children is often used as a component in conservation efforts. The continuous and accelerating destruction and overuse of natural resources is a serious threat to humans, the nature and environment we depend on for our survival. There is a need to change these trends and it is believed that increased knowledge about the environmental issues, personal and societal values and attitudes towards nature are components that influence people’s behavior. The focus on educating children is based on the idea that know…

Management diversification increases habitat availability for multiple biodiversity indicator species in production forests

2022

Context Forest biodiversity is closely linked to habitat heterogeneity, while forestry actions often cause habitat homogenization. Alternative approaches to even-aged management were developed to restore habitat heterogeneity at the stand level, but how their application could promote habitat diversity at landscape scale remains uncertain. Objectives We tested the potential benefit of diversifying management regimes to increase landscape-level heterogeneity. We hypothesize that different styles of forest management would create a diverse mosaic of forest habitats that would in turn benefit species with various habitat requirements. Methods Forest stands were simulated under business-as-usua…

The Two-Jacobian Scheme for Systems of Conservation Laws

2006

An explicit unconditionally stable numerical solution of the advection problem in irrotational flow fields

2004

[1] A new methodology for the Eulerian numerical solution of the advection problem is proposed. The methodology is based on the conservation of both the zero- and the first-order spatial moments inside each element of the computational domain and leads to the solution of several small systems of ordinary differential equations. Since the systems are solved sequentially (one element after the other), the method can be classified as explicit. The proposed methodology has the following properties: (1) it guarantees local and global mass conservation, (2) it is unconditionally stable, and (3) it applies second-order approximation of the concentration and its fluxes inside each element. Limitati…

Dyes of a Shadow Theatre: Investigating Tholu Bommalu Indian Puppets through a Highly Sensitive Multi-Spectroscopic Approach

2021

Tholu Bommalu are typical leather puppets of the traditional Indian shadow theatre. Two of these objects are part of a collection in the International Puppets Museum “Antonio Pasqualino” (Palermo, Sicily, Italy), which can count on one hundred-seventy-three of artifacts. These Indian puppets were investigated to obtain information related to the use of dyes for their manufacturing through a multi-technical approach exploiting the combination of highly sensitive spectroscopic techniques. Wet cotton stubbons were used to entrap small particles of dyes on the fibers from the art objects for the consequent analyses. Visible Light Micro-Reflectance spectroscopy was employed for the preliminary i…

« Les prépositions dénominatives et déverbales en français : traces de survie de la synthèse latine en français moderne »

2011

A study on the grammaticalization of deverbal, denominal and deadjectival prepositions in French out of Latin ablative absolute (AA) constructions has highlighted two main points of contact that could have allowed the process to take place: the preservation both of the original predicative quality and of the primal circumstantial syntactic function of the item-under-change. As a by-product, this study has provided arguments for the hypothesis that a residual, osmotic relationship could persist between Latin synthetic syntax and modern-French analytic syntax. In particular, this paper focuses on three statements of fact: (1) the grammaticalization of deverbal and denominal prepositions appea…

Priorities and gaps in Mediterranean bat research evidence: a systematic review for the early twenty-first century

2022

Bat conservation is one of the top global concerns for research today; however, conservation efforts may still be limited and impotent due to inadequacy and scarcity of data. Hence, identifying research trends, threatening factors, species status, and geographical priorities is an essential tool for future conservation, protection and prioritization. Here we conduct a comprehensive systematic review to identify current research priorities, trends, general patterns and gaps regarding Mediterranean bat researches. A total of 97 studies were found in the years spanning between 2000 and 2021. There were 18 studies with sufficient data for qualitative statistical analysis to investigate the impa…

Spatially dynamic forest management to sustain biodiversity and economic returns.

2014

Production of marketed commodities and protection of biodiversity in natural systems often conflict and thus the continuously expanding human needs for more goods and benefits from global ecosystems urgently calls for strategies to resolve this conflict. In this paper, we addressed what is the potential of a forest landscape to simultaneously produce habitats for species and economic returns, and how the conflict between habitat availability and timber production varies among taxa. Secondly, we aimed at revealing an optimal combination of management regimes that maximizes habitat availability for given levels of economic returns. We used multi-objective optimization tools to analyze data fr…

Comparing Conservation Value Maps and Mapping Methods in a Rural Landscape in Southern Finland

2015

We tested to what extent conservation value maps are different if the valuation and mapping method is changed. We compared 66 different conservation value and 4 different ecosystem service maps. Using remote sensing and other georeferenced data, we produced 2 different habitat type maps, which were 50 % similar. We valued each mapped habitat type based on rarity corrected potential number of vascular plant species and naturalness using 6 different valuation alternatives. We mapped habitat type connectivity and complementarity using 2 main approaches. The habitat type valuation alternatives were quite similar, but if the habitat type naturalness was taken into account, differences were large…

Huoli kuvasta : merkitys, mieli, materiaalisuus

2017

This research is a hybrid of a monograph and a multiple-article dissertation. Its theoretical starting point is a phenomenologically based view of the being of the image, in which Georges Didi-Huberman´s work plays a central role. For him, as well as for Mieke Bal, a historical work of art is never only in the distant past only but also exists in the present actuality. This makes the temporality of the Image extremely complex. The Image can be encountered only “pre-posterously” (Bal) or by reading it “against the grain” (Didi-Huberman). The Image is necessarily anachronistic; it is not in time but opens up time. This fact should be taken into account not only in art history, but also in art…