43 research outputs found

    Hantering av vÀrmeböljor i den fysiska planeringen. : Ett gestaltande arbete om vÀrmeböljor.

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    Detta kandidatarbete behandlar klimatförÀndringar med sÀrskilt fokus pÄ vÀrmeböljor, hur det hanteras i den fysiska planeringen och hur stadsmiljöer kan utvecklas och utformas för att bli mer motstÄndskraftiga mot vÀrmeböljor.Forskningen sÀger att klimatet förÀndras och vÀrmeböljor kommer bli allt vanligare, bÄde globalt och i Sverige. VÀrmeböljor leder till en ökad dödlighet, sÀrskilt hos sÄrbara grupper och pÄverkar Àven övriga samhÀllsviktiga sektorer, verksamheter och fysiska miljöer. Konsekvenserna förvÀntas bli som störst i tÀtbebyggda stadsomrÄden pÄ grund av den urbana vÀrmeöeffekten.Arbetet har utgÄtt frÄn resiliens som teori, dÀr utgÄngspunkten grundar sig i att vÄra samhÀllen behöver stÀrka sin förmÄga att förbereda sig för, klara av, och ÄterhÀmta sig frÄn klimatrelaterade förÀndringar.I den avslutande fallstudien redovisas gestaltningsprinciper för tvÄ omrÄden som Àr utsatta för höga temperaturer, samtidigt som de Àr utpekade som lÀmpliga omrÄden för förtÀtning, med syftet att skapa ett svalare mikroklimat

    Conceptions of nature photography A study of nature photographers’ view of movements in nature photography

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    The purpose with this essay is to examine the role of landscape photography as a portrayer of nature. The study contains interviews with eight landscape photographers, to find out how they look at tendencies and changes in photography. The essay focuses on the discussion of authenticity and realism in landscape photography. Due to the requirement of nature as something natural and authentic, the landscape photography stands in a special position when it comes to matters of manipulation and influence. On the basis of certain analysis themes, the landscape photographers debate questions such as where landscape photography stands today, and how the future looks for the genre.Uppsatsen diskuterar naturfotografins roll som skildrare av naturen, och syftar till att undersöka hur etablerade naturfotografer sjÀlva ser pÄ sin verksamhet. Studien bestÄr av intervjuer med Ätta etablerade naturfotografer, för att fÄ reda pÄ deras syn pÄ tendenser och förÀndringar inom naturfotografin. I fokus för studien finns diskussionen kring Àkthet och verklighetsansprÄk. PÄ grund av kravet pÄ naturen som nÄgonting naturligt och Àkta befinner sig naturfotografin i en sÀrskild position vad gÀller frÄgor om manipuleringoch annan pÄverkan. Med hjÀlp av analysteman som de intervjuade naturfotograferna reflekterar kring, uppmÀrksammas de frÄgor dagens naturfotografi stÄr inför, och Àven hur framtiden ser ut för den naturfotografiska genren

    Hantering av vÀrmeböljor i den fysiska planeringen. : Ett gestaltande arbete om vÀrmeböljor.

    No full text
    Detta kandidatarbete behandlar klimatförÀndringar med sÀrskilt fokus pÄ vÀrmeböljor, hur det hanteras i den fysiska planeringen och hur stadsmiljöer kan utvecklas och utformas för att bli mer motstÄndskraftiga mot vÀrmeböljor.Forskningen sÀger att klimatet förÀndras och vÀrmeböljor kommer bli allt vanligare, bÄde globalt och i Sverige. VÀrmeböljor leder till en ökad dödlighet, sÀrskilt hos sÄrbara grupper och pÄverkar Àven övriga samhÀllsviktiga sektorer, verksamheter och fysiska miljöer. Konsekvenserna förvÀntas bli som störst i tÀtbebyggda stadsomrÄden pÄ grund av den urbana vÀrmeöeffekten.Arbetet har utgÄtt frÄn resiliens som teori, dÀr utgÄngspunkten grundar sig i att vÄra samhÀllen behöver stÀrka sin förmÄga att förbereda sig för, klara av, och ÄterhÀmta sig frÄn klimatrelaterade förÀndringar.I den avslutande fallstudien redovisas gestaltningsprinciper för tvÄ omrÄden som Àr utsatta för höga temperaturer, samtidigt som de Àr utpekade som lÀmpliga omrÄden för förtÀtning, med syftet att skapa ett svalare mikroklimat

    Environmental occurrence and behaviour of the flame retardant decabromodiphenyl ethane

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    The environmental occurrence and behaviour of the brominated flame retardant (BFR) decabromodiphenyl ethane (dbdpe) has only been studied to a limited extent. It is structurally similar to decabromodiphenyl ether (decaBDE), which makes it conceivable that dbdpe may also become an environmental contaminant of concern. A method for environmental analysis and comparative assessments of dbdpe and decaBDE was developed. Both BFRs were studied in: a mass balance of the Henriksdal WWTP in Stockholm (Paper I); an international survey of sewage sludge (Paper II); sediment along a transect from Henriksdal WWTP to the outer archipelago of Stockholm and from isolated Swedish lakes (Paper III); and a benthic food web from the Scheldt estuary (Paper IV). Dbdpe was found in sludge from every country surveyed, indicating that it may be a worldwide concern. The WWTP mass balance showed that virtually all of the BFRs were transferred from wastewater to sludge. A small fraction was emitted via the effluent, confirming emissions to the aquatic environment. In the marine sediment, the BFR levels close to the WWTP outfall were high. They decreased along the transect to low levels in the outer archipelago. The study of lake sediment showed a widespread presence of dbdpe in the Swedish environment and provided evidence that it originates from long range atmospheric transport. In the food web, dbdpe did bioaccumulate to a small extent which was similar to decaBDE. The transfer of the BFRs from sediment to benthic invertebrates was low, while transfer from prey to predator was higher. Biodilution was observed rather than biomagnification. This work suggests that the persistence, the susceptibility to long range atmospheric transport, and the potential for bioaccumulation are similar for dbdpe and the regulated decaBDE that it is replacing. Thus, there is a risk that a problematic environmental pollutant is being replaced with a chemical that is equally problematic.At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 3: Submitted. Paper 4: Manuscript

    Såmi Duodji : Såmi Duodji - jakten pÄ det samiska

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    Det muntliga minnet om den gemensamma samiska historien finns skrivet i slöjdandet. Jag har i en materialundersökning undersökt de Àkta slöjdmaterialens betydelse för den samiska slöjdtraditionens identitetsskapande egenskaper. Hur vÀrderas uttryck för samiskt kulturarv utifrÄn olika kulturella erfarenheter av att vara same

    Maybe there is more snow and ice in Nangilima : A reception study of how children can interpret Astrid Lindgren’s movie Brothers Lionheart

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    In 1973 the famous Swedish children’s author Astrid Lindgren wrote the story about the brothers Lionheart. A story about the love between two brothers, bravery and death. Ever since, there have been a widely discussion whether the story is suitable for the young readers. Although the voices heard in the discussion mostly comes from grown-ups, but what does the children actually think? The aim of this study was to display the children’s interpretations in terms of the metaphors, the semiotics and the sequence of events the film Brothers Lionheart which was screened in the first time 1977. To answer the issues we watched the movie and implemented semi-structured interviews with seven 10-11 year old children. The children in this study gave us both different and interesting interpretations in terms of the metaphors and semiotics which could depend on different experiences in life and backgrounds. This study also shows that the children’s perception of the narrative structure in the movie varies which could mean that their story scheme sometimes is more or less developed in this age

    Screening of decabromodiphenyl ethane (dbdpe) in lake sediment, marine sediment and peregrine falcon (Falco peregrinus) eggs

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    Dbdpe has been produced and used for more than 20 years (Umweltbundesamt, 2001). Presumably there have been considerable emissions to the environment. Nevertheless, few scientific studies have been conducted on the environmental behaviour of dbdpe since its introduction to the market. The main objective of this report is therefore to contribute to scientific understanding of the environmental behaviour and occurrence of dbdpe. The work will help to clarify whether dbdpe poses a threat to human health and wildlife. This report is built upon three studies. The first is a screening study of dbdpe in sediments from remote Swedish lakes. The objective of that screening survey was to determine whether dbdpe is present in Swedish lake sediments, and thereby available to the organisms dwelling there. Furthermore, the presence of dbdpe in remote lakes would indicate that long range atmospheric transport and deposition of dbdpe had occurred, because the remote lakes are not expected to have any point sources of BFRs. In the second study, marine sediments along a transect from Stockholm Harbour to the outer archipelago were analyzed for dbdpe. Wastewater treatment plants in Stockholm had been shown to emit dbdpe to Stockholm Harbour. The primary objective of this study was to determine if the marine benthic ecosystem outside Stockholm is exposed to dbdpe, and if so, how far out in the archipelago this exposure reaches. In the third study, Peregrine falcon eggs were analyzed for dbdpe. The eggs of this top predatory bird were hypothesized to be early indicators of dbdpe in Swedish wildlife, since they previously have been shown to accumulate high levels of decaBDE. A comparison of dbdpe and decaBDE concentrations in Peregrine falcon eggs would give information about the relative bioaccumulation potential of these two chemicals

    Self-reported symptoms in Swedish hairdressers and association with exposure to volatile organic compounds (VOCs), including aldehydes

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    Abstract Background Working as a hairdresser involves combined exposure to multiple chemicals in hair treatment products that may induce symptoms in airways and skin. Methods In this cross-sectional study, perceived symptoms among Swedish hairdressers at 10 hair salons were surveyed through a questionnaire. Associations with personal exposure to volatile organic compounds (VOCs), including aldehydes, and their corresponding hazard index (HI), based on the estimated risk for non-cancer health effects, were examined. The prevalence of four out of 11 symptoms was compared to available reference datasets from two other studies of office workers and school staff. Results All 11 surveyed symptoms were reported among the hairdressers (n = 38). For the whole study group, the most prevalent symptoms were dripping nose (n = 7) and headache (n = 7), followed by eczema (n = 6), stuffed nose (n = 5), cough (n = 5) and discomfort with strong odors (n = 5). Significant relationships between exposure and symptoms were scarce. The exception was total VOC (TVOC) exposure adjusted to worked years in the profession; a difference was observed for any symptom between hairdressers in the group with 20 + years compared to 0–5 years in the profession (logistic regression, OR 0.03, 95% CI 0.001–0.70). Out of the four symptoms available for comparison, the prevalence of headache and cough was significantly higher in hairdressers than in controls (OR 5.18, 95% CI 1.86–13.43 and OR 4.68, 95% CI 1.17–16.07, respectively). Conclusions Adverse health effects related to occupation was common among the hairdressers, implying a need for exposure control measures in hair salons. Symptoms of headache and cough were more frequently reported by hairdressers than staff in offices and schools. A healthy worker effect among the hairdressers was indicated in the group with 20 + years compared to 0–5 years in the profession. Significant relationships between measured exposure and symptoms were scarce but gave information about advantages and disadvantages of the different exposure measures. The study design could be improved by increasing the size of the study population, using a better match of reference data and increasing the applicability and representability over time of the measured exposure
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