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Povzetek: Two new species of the genus Nitocrella are described from a karstic spring in Loei Province, northeast Thailand. They are the first representatives of the genus Nitocrella Chappuis, 1924, described from Thailand. Nitocrella grandicaudis sp. nov. and N. thailandensis sp. nov. show the peculiar shapes of the inner element of the male P1 basis, the basis of the mandible, and the proximal endite of the maxilla, differing from their congeners. While N. grandicaudis sp. nov. belongs to the chappuisi group according to the absence of a proximal inner seta on the third exopodal segment of the fourth swimming leg, N. thailandensis sp. nov. belongs to the vasconica group because the seta is present on the segment. Despite the low degree of differentiation in morphological characters, the shape of the female caudal ramus and the proximal seta of the male fifth segment of the antennule suggest that N. grandicaudis sp. nov. differs significantly from the other new species in its mating behavior. A detailed description and illustrations of two new species are provided, as well as a discussion on the divergence of both new species. Some comments on the basic understanding of the reproductive behavior of Harpacticoida are included.
Ključne besede: Ameiridae, biodiversity, groundwater species, karstic springs, Nitocrella grandicaudis, Nitocrella thailandensis, saturated karstic aquifer, Southeast Asia
Objavljeno v DiRROS: 24.06.2025; Ogledov: 457; Prenosov: 263
Celotno besedilo (5,11 MB)
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Povzetek: Cellulose is a renewable, biodegradable, cost-effective, and easy-to-process natural biopolymer. Because of its dielectric, piezoelectric, and mechanical performance, cellulose and its composites are often used as a matrix, filler, substrate, gel electrolyte, and dielectric layer for flexible energy storage devices. They offer easy fabrication strategies and excellent mechanical properties. In this mini-review, we summarized the principles of dielectric and energy storage features of cellulose composites and factors affecting their dielectric properties, mainly exploring the incorporation of various filler materials in the cellulose matrices and cellulose materials acting as different types of fillers. Moreover, the fabrication strategies, structural design, and matrix-filler interactions of cellulose composites enhance their dielectric properties as systematically reviewed. This review summarizes the current state-of-the-art progress of cellulose dielectric composites, challenges, and future outlook for green dielectric and energy storage devices. The review suggests that optimizing the filler type, cellulose fiber content, fabrication techniques, and structural design can significantly enhance the dielectric properties and energy storage capacity of cellulose composites.
Ključne besede: cellulose composites, dielectric properties, energy storage, natural biopolymers, filler–matrix interaction, flexible electronic devices, sustainable materials, piezoelectric properties, gel electrolyte, composite structural design
Objavljeno v DiRROS: 24.06.2025; Ogledov: 369; Prenosov: 139
Celotno besedilo (12,96 MB)
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Povzetek: The genetic diversity of forest trees, as provided by Forest Genetic Resources (FGR) and being the basis for the production of Forest Reproductive Material (FRM), is fundamental for maintaining forest resilience, adaptability, health, productivity, and biological diversity. Despite their importance, stakeholder governance of genetic diversity remains under-studied. This study aims to address this gap by mapping the forest stakeholder landscape FGR governance. Using the Quadruple Helix Approach, we categorised stakeholders into academia, industry, government, and civil society identifying relevant sub-communities. The mapping process involved iterative revisions through expert consultations, workshops, and literature scoping. Results show that the FGR sub-community is situated between strict conservation efforts and applied forestry, supporting both genetic conservation and productive forest management. The FRM sub-community, dealing specifically with the production and deployment of FRM, prioritises tree breeding, seed production, and afforestation/reforestation programmes. Meanwhile, the Protected Forests (PF) sub-community focuses on strict nature conservation, advocating minimal human intervention while facing pressures from resource extraction, tourism, and land-use conflicts. The diverging attitudes and values of close-to-nature forest management, intensive forestry, and strict protections, respectively, exist within same stakeholder groups, as well as among different ones, and are spanning all sub-communities. The study uncovers key tensions such as competing land-use priorities between forestry, agriculture, infrastructure and energy sectors, limited flow of knowledge between stakeholder categories and governance misalignments between local, national, and international regulations. The findings are particularly relevant for policymakers, forest managers, forest nurseries, conservation organisations, and industry stakeholders to balance conservation with sustainable forest utilisation. By integrating stakeholder perspectives and highlighting key governance challenges, this study shows where a common ground can be found and where divergent opinions are strong, opening the way for more integrated strategies and policies
Ključne besede: natural resource governance, actors' identification, social-ecological systems, quadruple helix approach, forestry, forest management, biodiversity conservation
Objavljeno v DiRROS: 24.06.2025; Ogledov: 482; Prenosov: 358
Celotno besedilo (1,47 MB)
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Povzetek: This open access book explores how polycrises not only generate new forms of inequality and social exclusion but also inspire new political activism, solidarity, and citizenship. It examines how social movement organizations frame their responses to exclusionary policies and regimes, and sheds light on their strategies for mobilization. By focusing on contemporary movements and their framing of social issues in times of crisis, the book offers valuable insights into social movement studies, urban studies, political communication, and frame analysis. It also engages with broader theoretical and public discussions on solidarity and citizenship. This book is ideal for scholars and students interested in social movements, political struggles, and fields such as migration, housing, and care.
Ključne besede: solidarity, social movements, crises, acts of citizenship, translocality, commons, diagnoses, prognoses, care, migration, housing
Objavljeno v DiRROS: 23.06.2025; Ogledov: 416; Prenosov: 134
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Ključne besede: javno mnenje, izražanje mnenja, javnost
Objavljeno v DiRROS: 23.06.2025; Ogledov: 444; Prenosov: 190
Celotno besedilo (1,12 MB)