Shaping the Geographical Imagination of Slovenian Landscapes in EducationThis volume focuses on Slovenian students’ geographical imaginations of Slovenian landscapes and the impact of curricula, ...syllabuses for selected subjects, and textbooks for them. It proceeds from the premise that photographs play an important role in shaping and maintaining individual and collective conceptions of landscapes. The introduction builds a theoretical framew`rk based on the concepts of landscape, geographical imaginations, and visuality. This is followed by a chapter presenting results of an analysis of twenty-five syllabuses for seventeen primary- and secondary-school subjects referring to shaping landscape imaginations. The third chapter brings results of an analysis of 949 photogrῡphs from fifty primary- and secondary-school textbooks. The fourth chapter presents the results of the analysis of questionnaires completed by 722 students and twenty-seven teachers from seventeen Slovenian primary schools and eight secondary schools. The fifth chapter synthesizes all of the findings.
The Catalogue of Good Practices of Sustainable Culinary Heritage Experiences in Mediterranean Area provides a detailed description of 18 culinary experiences from 8 different Mediterranean countries: ...Italy, France, Spain, Portugal, Croatia, Greece, Cyprus and Slovenia. The good practices cover various types of culinary experiences, namely tourist sites networks dedicated to food or culinary products, services connected to food products, professional activities linked to food highlighted through a touristic activity, culinary events, specific tourist sites dedicated to food or culinary products. The Catalogue reveals how culinary experiences work, who is involved, and what are the “ingredients” which make them successful. Each culinary experience is described through a story in which you will find valuable information on: local (territorial) anchoring and relationship to heritage, organising and managing aspects, relation to existing policies and strategies, sustainability aspects, innovative aspects, monitoring and stakeholders’ views.
Abstract A number of reports on potential toxicity of nanoparticles are available, but there is still a lack of knowledge concerning bioaccumulation. The aim of this work was to investigate how ...different sources of zinc, such as uncoated and unmodified ZnO nanoparticles, ZnCl2 in solution, and macropowder ZnO influence the bioaccumulation of this metal in the terrestrial isopod Porcellio scaber. After exposure to different sources of Zn in the diet, the amount of assimilated Zn in whole body, the efficiency of zinc assimilation, and bioaccumulation factors (BAFs) were assessed. The bioaccumulation potential of Zn was found to be the same regardless of Zn source. The amount of assimilated Zn and BAF were dose-dependent, and Zn assimilation efficiency was independent of exposure concentrations. The Zn assimilation capacity was found to be up to 16% of ingested Zn. It is known that as much as approximately 20% of Zn can be accreted from ZnO particles by dissolution. We conclude that bioaccumulation of Zn in isopods exposed to particulate ZnO depends most probably on Zn dissolution from ZnO particles and not on bioaccumulation of particulate ZnO.
Micro-proton induced X-ray emission (micro-PIXE) method was applied to study the micro-localization of silver (Ag) in digestive glands of a terrestrial arthropod (Porcellio scaber) after feeding on ...silver nanoparticles (nano-Ag) dosed food. The aim of our work was to assess whether feeding on nano-Ag results in the assimilation of silver (Ag) in digestive gland cells. To study micro-localization and elemental distribution of Ag, the animals were fed on food dosed with nanoparticles for 14days under controlled laboratory conditions. At the end of the feeding exposure, the animals were dissected and digestive glands prepared for micro-PIXE analyses and TEM investigation. The results obtained by micro-PIXE documented high amounts of Ag inside S-cells of the digestive gland epithelium; however, TEM investigation did not show particle aggregates inside digestive gland cells. Also no adverse effect on feeding behavior was recorded what is a measure of toxic effects. We explain the presence of Ag inside the cells as a result of the assimilation of dissoluted Ag ions from ingested nano-Ag particles. Assimilation of excessive amounts of ingested metal ions in S-cells is a well known metal detoxification mechanism in isopods. We discuss the advantages of using micro-PIXE for the micro-localization of elements in biological tissue in studies of interactions between nanoparticles and biological systems.
A number of reports on potential toxicity of nanoparticles are available, but there is still a lack of knowledge concerning bioaccumulation. The aim of this work was to investigate how different ...sources of zinc, such as uncoated and unmodified ZnO nanoparticles, ZnCl
2 in solution, and macropowder ZnO influence the bioaccumulation of this metal in the terrestrial isopod
Porcellio scaber. After exposure to different sources of Zn in the diet, the amount of assimilated Zn in whole body, the efficiency of zinc assimilation, and bioaccumulation factors (BAFs) were assessed. The bioaccumulation potential of Zn was found to be the same regardless of Zn source. The amount of assimilated Zn and BAF were dose-dependent, and Zn assimilation efficiency was independent of exposure concentrations. The Zn assimilation capacity was found to be up to 16% of ingested Zn. It is known that as much as approximately 20% of Zn can be accreted from ZnO particles by dissolution. We conclude that bioaccumulation of Zn in isopods exposed to particulate ZnO depends most probably on Zn dissolution from ZnO particles and not on bioaccumulation of particulate ZnO.
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