Consumptive orientation of anglers in Engerdal,Norway

In a study of consumptiveness among Swedish and Norwegian anglers in Engerdal, eastern Norway, three segments of low-, mid-, and high-consumptive anglers were identified by replicating a methodology of an earlier study of North American anglers. The Engerdal anglers were somewhat more catch-oriented than the North American anglers. Anglers in Norway fish to satisfy a complex set of experience preferences. Low-consumptive anglers rate nature experiences higher than mid- and high-consumptive anglers. High-consumptive anglers have a somewhat narrower range of experience preferences and are more oriented towards competitive aspects of fishing. All anglers generally support management efforts directed toward restricting other types of use of the waters, such as reducing pollution and reducing local fishermen's leisure gill-net fishing. They also support stocking of fish, but oppose actions restricting angling. However, low-consumptive anglers do not oppose angling restrictions to the same degree as mid- and high-consumptive groups. Low-consumptive fishermen show a higher degree of specialization and report higher overall satisfaction with their fishing trips than the other two groups.     

Mimic Enzyme Based Cellulose Nanocrystals/PVA Nanocomposite Membranes for Enrichment of Biogas as a Natural Gas Substitute

Journal of Polymers and the Environment - Nanocomposite membranes promoted by mimic enzyme was developed and optimized for biogas upgrading at moderately high pressure applications up to...     

Probabilistic biokinetic modelling of radiocaesium uptake in Arctic seal species: verification of modelled data with empirical observations

The necessity to provide information about radionuclide concentrations in Arctic marine species has been heightened in recent years due to a number of accidents in Arctic regions involving nuclear vessels and the presence of a large number of potential radioactive contamination sources. The provision for such information is largely dependent on the use of radionuclide uptake and transfer models. The uptake of radionuclides in Arctic seal species in this study has been modelled using a probabilistic biokinetic approach. In this paper, model results are compared with empirical data from relevant samples taken within the Arctic region. Results indicate that the model performs well when estimating concentrations of (137)Cs in two seal species for both median values and reproduction of the distribution of data values, but not as well for a third seal species. Likely factors affecting the results are the probability density functions used for the input parameters.     

Study of inexpensive oxygen carriers for chemical looping combustion

Norwegian industrial tailings and by-products, as well as naturally occurring minerals and ores have been surveyed with the purpose of identifying candidate oxygen carrier materials for use in a chemical looping combustion process. Nine materials, based on manganese and/or iron oxide, were selected for an initial screening test; six were deemed promising and were hence investigated further. Thermogravimetric experiments were performed to investigate the oxygen capacity, the reaction kinetics and reversibility of the oxygen absorption reaction. A manganese ore with a reversible capacity of 4.9 wt% oxygen at 1000 °C was selected as the most promising for chemical looping combustion applications. This material was modified by addition of calcia to explore the possibility of enhancing the kinetic, catalytic and mechanical properties. The addition of excess calcium relative to manganese resulted in formation of calcium manganite and related phases. The oxygen capacity of the modified material was 4.5 wt% at 1000 °C, but it has potential advantages in terms of kinetics and chemical and mechanical stability relative to the pure ore.     

The Responsibility of Farmers,Public Authorities and Consumers for Safeguarding Bees Against Harmful Pesticides

Journal of Agricultural and Environmental Ethics - This study examines the influence of environmental values on consumer intentions to participate in agritourism through the theory of planned...