Morphometric multivariate analysis has been performed based on 23 characters observed on 113 herbariumspecimens from throughout Fennoscandia. This demonstrates that four taxa can be recognised withinErigeron acris L. sensu lato, viz. E. acris L. subsp. acris, E. acris subsp. decoloratus (H. Lindb.) Hiitonen,E. acris subsp. droebachiensis (O. F. Müll.) Arcang. and E. acris subsp. politus (Fr.) H. L

Executive functions (EF) denote the host of top-down mental processes that mediate self-regulation to achieve a goal. Among other things, EF support cognitive flexibility by allowing inhibition of automatic responses in favour of obtaining future goals. Corvids, the bird group that is comprised of ravens, crows and jays, are distinguished by their cognitive flexibility. This thesis investigates tw

Karlfeldtforskningen beskrivs, och vilka nya vägar kan den gå. Två föreslås: dels forskning om Karlfeldts positioner i den litterära offentligheten, dels forskning om Karlfeldts egendomliga bildspråk (Jean Paul, C F Dahlgren ) som är en del av en svensk tradition (Tegner, Tranströmer)

The aim of this article is to develop an understanding of what happens when Instagram photography is used for branding a place. Questions raised are which photographs are taken and published, does the practice result in novel ways of representing a place, and, in turn the image of a place. A practice approach to photography is used where focus is directed to the performative aspect of photography.

Den här avhandlingen handlar om luftburna designade nanopartiklar och hur mantar reda på vilka egenskaper de har. Luftburna partiklar eller aerosoler är något sommänniskan alltid har haft omkring sig. Oavsett om det varit i form av pollen, rök fråneldstaden, eller från astmainhalatorn så har de alltid varit där och påverkat oss. I varjeandetag drar vi in flera tusen partiklar, men vilken typ de ärThis thesis will explore parts of the life of engineered nanoparticles, from generation in research environments andprocess monitoring, to emissions in an industrial setting. The aim is to give insights into how the particles can becharacterized in different settings and how different characterization methods can be applied depending on need ordemand.Airborne nanoparticles have been around forever

Agroecology is gaining ground within the debate on how to address systemic social and environmental problems in agriculture. However, it remains marginalized in agricultural research and development plans around the world. This paper analyzes agroecology as a socio-technical niche in Uganda, where its emergence in part can be seen as an unintended consequence of neoliberalist development. The case

Laptops and smartphones are now challenging the traditional boarders of work and have contributed to new ways of combining work and other parts of life. Both time and room dimensions have been resolved or taken new forms through the new information and communication technology. Questions like when and where you are supposed to, or can or want to work are likewise important to companies and employeLaptops and smartphones are now challenging the traditional boarders of work and have contributed to new ways of combining work and other parts of life. Both time and room dimensions have been resolved or taken new forms through the new information and communication technology. Questions like when and where you are supposed to, or can or want to work are likewise important to companies and employe

Anion exchange membrane fuel cells (AEMFCs) are considered as one of the most important next-generation energy conversion technologies. AEMFCs convert chemical energy into useful electrical energy and have great potential forachieving high conversion efficiencies. In addition, the faster oxygen reduction kinetics under alkaline conditions are advantageous for the use of non-noble metal catalysts (

Nuklearmedicinsk bildtagning med hjälp av radiofarmaka är ett viktigt verktyg för att studera biologiska processer och humansjukdomar. Bildtagning sker ofta med en detektor i kombination med en kollimator. En typ av kollimering är pinnhålskollimering, där ett pinnhål i ett opakt material placeras mellan en källa och en detektor. Pinnhålet fyller samma funktion som en optisk lins då emitterade fotoThe focus of this dissertation is the use of pinhole collimation in Nuclear Medicine. A pinhole is a single aperture in an opaque material that is placed between the detector and source of interest, and photons must pass through the hole to reach the detector. The choices of pinhole parameters, e.g. the pinhole material and size of the opening, are closely linked to the performance of the detector

In the course of 2000s, the region of Campania in southern Italy and its capital city Naples became global icons of waste mismanagement after the images of piles of rubbish occluding their urban areas hit the headlines. Conventional explanations, in Italy and elsewhere, pointed to administrative failure, cultural backwardness and mafia infiltration as the main causes of waste mishandling. In the s

Skogar täcker ca 31% av jordens landyta och lagrar stora mängder kol i biomassa och i marken. I klimatavtalet från Paris 2015 lyfts skogars roll som sänkor och reservoarer av kol fram och undertecknande länder uppmanas att implementera strategier för hållbart skogsbruk som ytterligare förstärker skogars roll som sänkor av växthusgaser. Ett aktivt skogsbruk påverkar klimat och miljö på många olika Forest ecosystems cover 31% of the terrestrial land area and store large amounts of carbon in biomass and in soils. The 2015 Paris Agreement recognizes the importance of sinks and reservoirs of greenhouse gases (GHGs) in forests and the importance of enhancing them through sustainable forest management policies. Managing forests for climate mitigation purposes is, however, complex since management