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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
461

Det svenska områdesskyddet : Ett samspel mellan diskurs och institutioner

Farzin, Maziar January 2010 (has links)
Sweden has had laws protecting nature for about a hundred years. In this paper the views of nature and the values that serve as a rationale for protective measures are analyzed as results of a social process characterized by the dialectic relationship between institutions and discourse. Critical discourse analysis (CDA) is used to study this relationship and the discursive practices used by institutions, which reproduce or reshape views of nature that define the relationship between society and nature. Institutional design contributes to shaping discourse in the field of nature protection, while being originally shaped by discourse. In Sweden, the national park is an institution that reproduces a view of nature as the wild and untamed opposite of society, and the natural reserves reproduce a view of nature as holder of a multi-faceted set of values intertwined with society. However, the most recently formed national park, the marine national park of the Koster sea includes resource values that threaten the hegemony of arcadian discourse within the institution and indicates social change.
462

Ett sunt land i en sund kropp : Om naturnationalism och kroppsdisciplin speglad i Svenska turistföreningens årsskrifter 1908-1916

Dickson, Emil January 2008 (has links)
Nationalism during the early 20th century, was often shaped around efforts to create feelings of fellowship within the frontiers. Fellow feelings was considered as a necessity to convince the people that their efforts served mutual goals. Beginning in the 19th century, the European nations experienced a great many projects for this purpose. In the early 20th century the efforts grew. The danger of war and the competition for economic power, contributed the increase of nationalist movements. At the same time, many influential intellectuals also expressed apprehensions about the urbanized way of life; measures were necessary to secure the future success of the nation. The national movements in Sweden, played a prominent role in the creation of a greater patriotic feeling. This paper is about one of these movements: Swedish Tourist Association (STF), founded in 1885. Around the motto “Know your country”, STF promoted Swedish tourism aiming to spread knowledge of the country and its people. Benedict Anderson’s Imagined Communities and Michel Foucault’s Discipline & Punish has influenced the interpretation of STF’s yearbooks 1908-1916. This paper aims at explaining STF’s activities as a combination of efforts to create fellow feelings among the Swedes, and efforts to discipline them to a healthier way of life. STF’s vision was to construct mutual heartfelt emotions towards the Swedish nature. The sound nature was seen as a symbol for the sound nation. It was thereby desirable that the Swedes were given the opportunity to experience this nature. Tourism became a technique to solve both the need for Swedish fellowship and the need for healthy citizens. Tourism placed the Swedish bodies in the Swedish nature, which disciplined them to mutual patriotic feellings for their beautiful country, and at the same time gave them the healthy constitution and moral strength that should characterize every Swede.
463

Enligt fysiken eller enligt mig själv? : Gymnasieelever, fysiken och grundantaganden om världen

Hansson, Lena January 2007 (has links)
I avhandlingen studeras elevers grundantaganden om världen, samt de grundantaganden som eleverna förknippar med fysiken. Det är utifrån de grundantaganden vi gör om hur världen är beskaffad som vi försöker tolka och förstå nya fenomen och företeelser vi möter, t.ex. i den naturvetenskapliga undervisningen. I avhandlingen ligger intresset primärt på grundantaganden som vanligtvis tas för givna i naturvetenskapen samt sådana som är av intresse för relationen mellan naturvetenskap och religion. För de empiriska studierna har ett specifikt område, nämligen universums uppkomst och utveckling samt existentiella frågor relaterade till detta, valts som ram för elevernas resonemang. Avhandlingen bygger på två studier. I den första studeras elevers skriftliga svar och uttalanden under intervjuer och i den andra studeras elevers gruppdiskussioner. Eleverna som deltar i de båda studierna går alla det tredje året på gymnasiet och läser kursen Fysik B. Resultaten visar att det finns elever som beskriver sin egen och fysikens syn på olika sätt. Detta gäller såväl frågor om universums uppkomst och utveckling som frågor om t.ex. relationen mellan naturvetenskap och religion. Resultaten visar vidare att de grundantaganden som vanligtvis underförstås i fysiken inte med självklarhet associeras med fysiken av eleverna. Detta kan göra det svårt för dem att förstå resonemang och modeller i fysiken. Resultaten visar vidare att det är vanligt att elever associerar scientistiska synsätt med fysiken. Scientism innebär att man menar att ingenting utom det som är åtkomligt för naturvetenskapen existerar. Detta uteslutet möjligheten att andra möjliga dimensioner av verkligheten än den materiella existerar. Att förknippa fysiken med antaganden som inte av nödvändighet måste förknippas med fysiken (t.ex. scientistiska synsätt) kan göra att elever, som inte själva delar dessa antaganden, får svårare att identifiera sig med fysiken och kanske t.o.m. väljer bort studier i fysik när möjlighet ges. / Students’ presuppositions about the world are studied, together with the presuppositions the students associate with physics. It is from the starting point of our presuppositions about what the world is like that we try to interpret and understand new phenomena that we meet, for example in science class. The thesis primarily focus on presuppositions usually taken for granted in science, and presuppositions that are of interest for the relationship between science and religion. A specific content area was chosen for the students reasoning in the empirical studies: the origin and development of the universe and existential questions related to that. The thesis builds upon two studies. In the first one students’ written answers and statements during interviews have been studied, and in the second one students’ groupdiscussions were studied. Students in both studies are in their last year of upper secondary school, and all of them study the course Physics B. The results show that there are students that describe their own view and the view of physics in different ways. This is valid both for questions about the origin and development of the universe, and for questions for example about the relationship between science and religion. The results also show that presuppositions that are usually taken for granted in physics, not necessarily are easily associated with physics by the students. This can make it hard for them to understand reasoning and models in physics. In addition to this the results also show that the students associate scientistic views with physics. Scientism states that nothing more than things that are in the realm of science exists. This exclude the possiblity that other dimensions than the material one exist. Associating physics with presuppositions that are not necessary for physics (for example scientistic views) can have consequences for students not sharing those views, i.e. they will have a harder time identifing themselves with physics. Perhaps they will choose not to study physics when given a choice.
464

Arsenic in tubewell water of Bangladesh and approaches for sustainable mitigation

Jakariya, Md. January 2007 (has links)
There is an urgent need for Bangladesh to identify the arsenic (As) contaminated tubewells (TWs) in order to assess the health risks and initiate appropriate mitigation measures. This involves testing water in millions of TWs and raising community awareness about the health problems related to chronic As exposure from drinking water, and providing alternative safe water option for the exposed population of the country. The use of spatial maps in a participatory context emerged as an important tool for an effective and rational distribution of alternative safe water options for the exposed population of the country. Field test kit offers the only practical tool available to screen all the TW water considering the time frame and financial resources of the country. A comparison of the field test kit results and laboratory measurements by atomic absorption spectrometry (AAS) as “gold standard” for As in water of 12,532 TWs in Matlab upazila (sub-district) in Bangladesh, indicates that the field test kit correctly determined the status of 87% of the As levels compared to the Bangladesh Drinking Water Standard (BDWS) of 50 μg/L, and 91% of the World Health Organization (WHO) drinking water guideline value of 10 μg/L. In order to identify the sustainable alternative safe water options, different type of safe water options were distributed in Sonargaon and Jhikargachha upazilas (sub-district) in 2001 and later revisited the options in 2004 to identify the sustainable ones. It was observed that community acceptability of the distributed options was not encouraging; less than 2% of the provided options were found to be in use. However, two new approaches emerged from people’s initiatives, which were making rapid and positive contributions to safe water coverage: switching to the existing As-safe TWs and reinstalling TWs at 50-100 m depths by looking at particular type of sediment colours. A study was conducted in Matlab upazila to validate the concept of installation/reinstallation of TWs at certain depths, a new concept promoted by local drillers (masons). The study revealed that locally a thick layer of black to grey sediments overlies an oxidized unit of yellowish-grey to reddish-brown sediments. The correlation between the colour of both units and the groundwater redox conditions was investigated to provide an easy tool for targeting low-arsenic groundwater. The water abstracted from black sediments contained high amount of As concentration but the concentration decreased towards the yeallowish to red sediments. Three boreholes verified the driller's perception of the subsurface lithologic conditions. Discrepancies between the driller's and the research team description of the sediment colours were insignificant. This study shows that sediment colour is a reliable indicator of high and low As-concentrations in TW water and can be used by local drillers to install TW. Lack of financial resources and identification of an appropriate distribution tools are some of the major obstacles to provide sustainable solution to the exposed population of the country. Spatial mapping exercise along with community participation can help maximize the safe water coverage of different alternative safe water options by reducing financial involvement. Combining people’s voice with that of spatial information gave better results and the method is already been proved useful in targeting non-served areas. Participatory Rural Appraisal (PRA) methods along with geographical information system (GIS) used in the study to obtain relevant information. Participants from different focus groups were asked to determine their ‘own priorities’ for spatial planning of alternative arsenic-safe water options. The study discusses community perspectives on demand-based safe water options and reveals the suitability of using participatory geographic information system (PGIS) technique to target non-served areas for rational distribution of safe water options. / QC 20100716
465

Managing water according to river basins : Information management, institutional arrangements and strategic policy support - with focus on the EU Water Framework Directive

Nilsson, Susanna January 2006 (has links)
Today, there is a general notion that water resources are best managed according to their river basins. River basin management may be approached from a wide variety of angles. This thesis focuses on information management, institutional arrangements and strategic policy support, with special reference to the EU Water Framework Directive (WFD). The overall objective is to examine strategies, possibilities and hindrances for river basin management, with the ultimate goal of identifying key aspects to be considered - and prioritised - for “successful” European water management and WFD implementation. An assessment of the information management of three transboundary water regimes in Europe showed that a technical/scientific paradigm ap-pears to dominate in river basin accords. This is visible, for example, in the data collection, which is dominated by state and environmental impact information, and the use of passive channels for communicating with stakeholders and other interest groups. The studies addressing institutional arrangements for river basin management according to the WFD showed that the implementa-tion level of the directive is relatively low – both at national and international levels. For instance, competent authorities have not been established (strictly) according to the borders of the estab-lished River Basin District (RBDs). Further, in international RBDs, the ambitions and plans for cooperation vary considerably. Despite the general low implementation level, steps have still been taken in the “direction” of river basin management. At the national level, all examined countries have established RBDs according to river basins, and at the international level, joint river basin management plans will probably be coordinated for a majority of river basins shared by EU Member States. However, the same pattern could not be discerned for river basins extending outside the borders of the EU. In order to support strategic policy making on issues related to the implementation of the WFD, two assessments were made, one addressing international co-operation and water quality in the Baltic Sea Region, and one encompassing rankings of all the newly established RBDs based on a number of identical indicators. Although there is a need to refine these assessments, they may be regarded as simple – but yet robust – models for bench-marking. / QC 20100914
466

Med andras ögon : En intervjustudie av åsikter och värderingar om effekter och produkter av det svenska jordbruket / With others eyes : a study of views and values on the effects and products of Swedish agriculture based on interviews

Råsberg, Sara January 2008 (has links)
The majority of the Swedish population were self-provided within agriculture a hundred years ago. Times do change and today the situation is the other way around - most of us live within city boundaries and only few work with farming and related agricultural businesses. One thing that has not changed though, is the need of supplies from Swedish agriculture. What do we think of those products? Are we even aware of the connection between us and agriculture? The Federation of Swedish Farmers, LRF (Lantbrukarnas riksförbund), started their project to strengthen the link between consumers and producers in 2008.This paper is part of the project and its aim is to investigate consumers' views and values upon the effects and products from Swedish agriculture. Opinions and values have been studied through interviews influenced by phenomenology. The results show that the informants in general had a positive approach and thinking concerning the products and effects from Swedish agriculture. They thought tat the products represented high quality and they had a tendency to prefer them in front of other choices. / För hundra år sedan var större delen av befolkningen i Sverige bönder, brukare av jorden, och mer eller mindre självförsörjande. Med tiden har detta förändrats och idag är förhållandet omvänt, landsbygden avbefolkas till fördel för de ständigt växande städerna och väldigt få arbetar med att bruka jorden. Vi är dock fortfarande beroende av det som jorden ger och därför även av jordbruket, men hur ser vi på jordbruket och dess produkter och hur kopplar vi dessa till oss själva? Lantbrukarnas Riksförbund, LRF, startade under hösten 2008 (projektet) konsumentdialogen, en satsning vars syfte är att stärka och visa på relationen mellan konsument och producent. Denna uppsats är en liten del i arbetet med att förstå konsumenten. Avsikten med min studie är att belysa konsumentens åsikter och värderingar kring effekter av och produkter från det svenska jordbruket. Genom en intervjustudie med utgångspunkt i fenomenologin har jag undersökt konsumenters uppfattningar och värderingar till produkter och effekter av det svenska lantbruket inom områdena mat, energi och natur. Min studie visar att det tillfrågade generellt ser positivt på produkter som det svenska jordbruket producerar och förknippar dessa med hög och god kvalité. Merparten av de tillfrågade väljer i första hand matprodukter från Sverige och fyra av de informanterna anser att småskalig energiproduktion inom jordbruket har stora potentialer i framtiden.
467

Utomhusmiljöns betydelse för hälsa och lärande : en enkätundersökning om gymnasieungdomars upplevelser

Rösler, Sandra, Olsson , Maria January 2009 (has links)
One of our big public health problems in Sweden is that human beings are too inactive in outdoor settings. That is why stress related diseases increase and influence humans both mentally and physical. The physical activity is halved among many children when they start school and the older they become the less they enjoy school. It is also an increasing problem that children and youth in today's society have lack of worthwhile experiences in the nature. The aim of this study was therefore to examine how the experience of outdoor environment had importance for health and learning on upper secondary school pupils. The study is used a questionnaire survey where 192 upper secondary school pupils in nature and farm focused programs, respectively social programs participated. Of the result it emerged that the outside environment was a positive place in order to create health and learning. Although social- and farm focused pupils had different opinions about good outside environments and where they rather learned, the pupils at the social program were less pleased with their outside environment at school, although they already had what they wanted. The pupils at the social program also wanted more outdoor education and more practical education, as the farm focused pupils considered positive for health and learning. Our conclusion is that the pupils’ wishes should be noticed and a more varying education, that include the outdoor environment and experiences in nature, should be introduced in more schools, even in the cities, since the school also is an arena where young people spends a lot of their time. If the school creates an interest for nature it can last for the rest of life.
468

Effekter av upphörd hävd i Lurö skärgård : Har diversiteten av kärlväxtarter förändrats? / Effects of abandoned management in the Lurö archipelago : Are there any changes in the diversity of plants?

Thor, Annelie January 2008 (has links)
One of the main reasons for the massive loss in plant species diversity is the fragmentation of habitats. In Europe, open pastures and meadows are the habitats going through the most changes during the 20th century, according to the agricultural changes. In this study vascular plants were invented at five different islands in the Lurö archipelago, Vänern, Sweden. The aim of the study was to sort out whether the diversity of plants has gone through any changes in abandoned managed grasslands compared to continuous managed grasslands. The aim was also to study if a change in the landscape has made any differences for the species development or decline. The results indicate that the number of vascular plants were significantly lower in the abandoned areas than the still managed areas. Results, only from the field layer, showed same results. There was a significant difference between the number of indicators in managed lands than lands that were abandoned for 30-40 and 100 years ago. A comparison from earlier study, from a time when grazing had just ceased at some islands, showed a significant difference in plant species diversity between the years. Just a few decades can impoverish a plant community that might have taken hundreds or even thousands of years to build up. To preserve the biological diversity formed by human impact, one must continue managing the lands. / En av de största orsakerna till den massiva förlusten av växtarter, är fragmenteringen av habitat. I Europa är öppna naturbetesmarker och ängar de habitat som genomgått de största förändringarna i och med jordbrukslandskapets omstruktureringar under 1900-talet. I den här studien inventerades kärlväxter på 5 olika öar i kulturlandskapet Lurö skärgårds naturreservat. Syftet var att ta reda på hur diversiteten bland kärlväxtarter skiljer sig mellan hävdade gräsmarker och f.d. gräsmarker där hävd upphört och hur ett förändrat landskap spelat roll för artantalets utveckling eller tillbakagång. Resultat visade att antalet kärlväxter var signifikant lägre i marker som slutat hävdas, än marker som fortfarande hävdas. Även jämförelser i enbart fältskiktet visade ett signifikant högre artantal hos välhävdade marker än marker där hävd upphört. Det fanns en signifikant skillnad mellan antalet indikatorarter i marker som var under hävd och marker som slutat hävdas för 30-40 år sedan, kontra 100 år sedan. Vid jämförelser med en tidigare studie, som ägt rum precis efter att hävden upphört på ett flertal lokaler visade resultat att det fanns en signifikant skillnad i artantal mellan de båda åren. På några få decennier kan ett helt växtsamhälle som byggts upp under hundratals eller kanske till och med tusentals år utarmas. För att bevara den biologiska mångfald som formas av en störningsregim beroende av människans inverkan, måste hävd fortsätta kontinuerligt.
469

Kommunalt naturskydd som en del av markanvändningsplaneringen : en fallstudie av olika synsätt i samband med upphävande av naturreservat

Bergkvist, Tomas January 2007 (has links)
In metropolitan areas where the exploitation pressure increases, also the importance to point out nature areas grows, both for the sake of outdoor life and for biodiversity conservation. Since nature conservancy and spatial planning constitute two different parts of the municipalities land use control, a case study has been carried out in two municipalities in the Stockholm region, Huddinge and Järfälla. Both these municipalities have protected about one third of their land and today there are plans to repeal parts of the reserves to enable exploitation. This thesis shows – from the theoretical concept of sustainable development – officials, politicians and non-governmental organizations perspectives on questions concerning land use together with the work with nature reserves and repeals. The study focuses on how different basic attitudes and paradigms emphasizes different aspects of sustainable development and how this in turn affects the work to repeal nature reserves. Interviews with stakeholders in the municipalities and documents concerning land use and nature reserves demonstrates that there is distinct differences between the planning-paradigm, based on spatial planning, and the environmental-paradigm, based on nature conservation. From the planning-paradigm it is considered that nature reserves had to big impact on the munici­pality's land use and that valuable nature more frequently should be protected by the Swedish planning and building act. From the environmental-paradigms view the nature conservancy is – and should also in the future be – an important tool in the long-term prevention to stop valuable nature from being exploited. The thesis also stresses the importance to in the work with repeals take all effects that this kind of decision can lead to into account – not just in the repealed area but also for the future work with nature reserves on the whole. / I storstadsregioner där exploateringstrycket blir allt större, ökar också vikten av att peka ut naturområden, både för det rörliga friluftslivet samt för bevarande av den biologiska mångfalden. Utifrån det att naturskydd samt fysisk planering utgör varsin del av kommuners styrning av mark­användningen har en fallstudie genomförts i två kommuner i Stockholmsregionen, Huddinge och Järfälla. Båda dessa kommuner har skyddat ungefär en tredjedel av kommunens mark och idag finns planer på att upphäva delar av reservaten för att där möjliggöra exploatering. Uppsatsen visar – utifrån det teoretiska begreppet hållbar utveckling – hur tjänstemän, politiker och intresse­organisationer ser på markanvändningsfrågor samt arbetet med naturreservat och upphävande. Studien fokuserar på hur olika grundinställningar och paradigm lyfter fram olika aspekter av hållbar utveckling samt hur detta i sin tur påverkar arbetet med att upphäva naturreservat. Intervjuer med kommunala aktörer samt dokument rörande markanvändning och naturreservat visar att det finns tydliga skillnader mellan planparadigmet, med grund i den fysiska planeringen, och miljö­paradigmet, med grund i naturvården. Utifrån planparadigmet anser man att naturreservaten har fått för stor inverkan på kommunens markanvändning och att värdefull natur oftare borde skyddas med hjälp av plan- och bygglagens verktyg. Från miljöparadigmets vinkel är naturskyddet – och bör även i fortsättningen vara – ett viktigt verktyg för att långsiktigt förhindra att värdefull natur exploateras. Uppsatsen framhåller också vikten av att man vid upphävande av naturreservat tar hänsyn till alla effekter som ett sådant beslut kan leda till – inte bara i det upphävda området utan även för det fortsatta arbetet med naturreservat i stort.
470

Optimal ways to harvest and purify rainwater in the Western and Nyanza provinces, Kenya

Odevik, Anders, Nordström, Christian January 2010 (has links)
<p>The access to water in the regions around Lake Victoria varies with the rainy seasons. Today the daily labor of fetching water is a heavy burden for people in the rural areas. In the process of this study farmers in the Western and Nyanza provinces in Kenya are interviewed, water samples are analysed and present rainwater harvesting techniques and purification methods are observed. As a result, suitable solutions to the problems found are discussed. An optimal system is chosen for the region with a concept selection matrix. An elaborated dimensioning tool for roof and purpose-built harvesting systems is developed. Finally a summarized manual is attached in order to raise interest for rainwater harvesting among the farmers that the non-governmental organisation SCC-Vi Agroforestry cooperates with.</p> / <p>Tillgången till vatten i områdena kring Victoriasjön varierar med regnperioderna. Det dagliga arbetet med att hämta vatten är idag en stor börda för människor på landsbygden. Under processen av denna studie intervjuas bönder i Western och Nyanza provinserna i Kenya, vattenprover analyseras och nuvarande regnvatteninsamlingstekniker och reningsmetoder observeras. Som ett resultat diskuteras passande lösningar på de problem som hittats. Ett optimalt val av komplett system för regionerna tas fram med hjälp av en konceptvalsmatris. Ett genomarbetat verktyg för dimensionering av tak- och ändamålsbyggda insamlingssystem utvecklas. Slutligen inkluderas en sammanfattande manual för att väcka intresse för regnvatteninsamling bland de bönder som den ideella organisationen SCC-Vi Agroforestry samarbetar med.</p>

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