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36 Uppsatser om Booby traps - Sida 2 av 3
Föroreningar orsakade av stenar inblandade i barrmassaved
Holmen Skog AB is an important supplier of conifer pulpwood to the Iggesund Paperboard mill. After logging and transport to the landing by a forwarder, the wood is loaded on trucks for further transport, often by using separate loaders. During this handling process considerable amounts of stone material is sometimes mixed into the pulpwood and this causes problems for the industry. The aim of this study is to identify which part of the chain from forest to pulpmill, that contributes the most to this contamination. Sizes and total volumes of the contaminating stones were also investigated.
"Barnens bästa". En poststrukturalistisk studie av debatten om en individualiserad föräldraförsäkring.
The thesis explores the meaning of the concept "children's best" in relation to the social Swedish parental insurance debate from a post-structuralist view. The main material has been taken from daily news papers and the methodological as well as theoretical basis is provided for by Laclau & Mouffes discourse theory. In particular has the concept "empty signifiers" been of use when investigating "children's best" as a strong argument on both the "pro" and "against" sides of the debate of an individualized parental insurance. The theoretic purpose of the thesis is also to examine the poststructuralist/feminist dilemma in order to approach a more pragmatic and useful model of the two combined provided by Alcoff and Fraser. One conclusion is that "children's best" may never have an objective answer and will be a changing concept in time, ideology preference and discoursive field.
Förtroliga medarbetarsamtal : chefers och medarbetares uppfattningar
This master?s paper first presents some of the principal theories and concepts developed by the poverty researchers Rowntree, Titmuss, Townsend, Sen and Lister. These theoretical frameworks are then related to two documents from the EU and Sweden concerning combating poverty and social exclusion, bearing on the establishment of the ?Year 2010 against Poverty?. Finally, I discuss the value in practice of these theories and policy documents, as regards reducing poverty in Europe.It has become clear in this investigation that the theories and concepts from earlier research are still relevant to the formulation of contemporary policy programmes, and that earlier research helps us to avoid old traps in fighting poverty.
Om europeiska fattigdomsteorier och deras tillämpbarhet, relaterade till policydokument för EU:s fattigdomsår 2010.
This master?s paper first presents some of the principal theories and concepts developed by the poverty researchers Rowntree, Titmuss, Townsend, Sen and Lister. These theoretical frameworks are then related to two documents from the EU and Sweden concerning combating poverty and social exclusion, bearing on the establishment of the ?Year 2010 against Poverty?. Finally, I discuss the value in practice of these theories and policy documents, as regards reducing poverty in Europe.It has become clear in this investigation that the theories and concepts from earlier research are still relevant to the formulation of contemporary policy programmes, and that earlier research helps us to avoid old traps in fighting poverty.
Lycklig är den, vars arbete är en lek : Att skapa lust och undvika lustfällor i musiklekandet med förskolebarn
Med hjälp av denna vetenskapliga essä undersöker jag hur man kan uppmärksamma och värna leken och glädjen i musicerandet med förskolebarn. Detta belyser jag inte enbart ur barnens perspektiv utan även ur mitt eget och mina kollegors. Med hjälp av berättelser från min vardag på förskolan och utifrån min praktiska kunskap, ger jag en bild av hur detta kan te sig. Dessa berättelser är ett fundament för mina vidare reflektioner. Vad lek och leklust är skärskådar jag genom att bena upp begreppen i mindre beståndsdelar.
The efficiency of the newly launched predatory mite Amblydromalus limonicus : biological control of thrips in cucumber
In this study, the efficiency of a newly launched predatory mite, Amblydromalus limonicus, has been
examined for its potential to use as a biological control agent in cucumber production. A. limonicus
can be used for biological control of two thrips species, Frankliniella occidentalis and Thrips tabaci.
Field trials were conducted in greenhouses of two conventional cucumber growers in Scania, the
southern part of Sweden. The basic control agent used against thrips was the predatory mite
Amblyseius swirskii. In selected areas, additional A.
Olika typer av täckning och samodling och dess påverkan på antalet skadegörare i en Pak choi odling :
The purpose of this report is to examine the possibilities to decrease the number of insects and other pathogens in a crop of pak choi (Brassica rapa), grown with different types of cover and living mulches. Included in the report is a study of literature where amongst others, a summary on the vegetable pak choi and theories of living mulches and different kind of covers are to be found. To examine the amount of predators in the field, traps were used.
During the autumn 2002 the tests were conducted in Alnarp. The pak choi and the living mulches were planted/sawn at the same time, the different covers were also applied at this time. The total experiment was divided into six different treatments (plus control) of which three were with covers and three were with living mulches.
Once a week the number of leaves, the height and damages were read on ten of the plants from each parcel.
Prognososäerhet.
Although research on gothic fiction has given limited attention to children?s fiction, the last two decades have witnessed an increasing interest. To date the focus has been mainly on English literature with a recurring tendency to define children?s gothic fiction as a text corpus separate from gothic fiction in general. As a result, children?s gothic fiction has become isolated and is not considered as part of the gothic genre, neither the literature nor its adaptations.The aim of this study is to view children?s gothic fiction as an integral part of the gothic genre.
Sand pits as habitat for ground beetles (Carabidae) : does the area affect species number and composition?
Sand pits are a valuable habitat which can hold many sand living species including several endangered ones. As many sand habitats with exposed sand are declining, sand pits have a potential as a substitute habitat. This study was conducted to see what effect the area of a sand pit has on species number and composition of ground beetles (Coleoptera: Carabidae). Also, the effects of other environmental variables were tested, for example the proportion open sand, vegetation cover, sun exposure and tree cover. The study was conducted in the county of Uppsala in 2008 and included 13 sand pits with areas between 200 and 180,000 m2.
Sedimentprovtagning av dagvattendammar som ett alternativ till flödesproportionell vattenprovtagning
Stormwater run-off from surfaces such as roads or rooftops is often polluted with heavy metals and nutrients. Many of these substances can cause great damage in biota if they end up in the recipient. In Sweden constructed wetlands and ponds for treatment of stormwater are frequently used, since research has shown that these treatment ponds are reducing stormwater pollution considerably to a low cost. The knowledge of these pollutant removal mechanisms and how follow-up and assessment of the ponds should be performed is still limited.To determine the pollutant removal efficiency of the stormwater ponds it is recommended that flow-weighted water samples are collected from both the inflow and the outflow of the pond. This method demands considerable resources of time and money for installations and analysis.
Hemsökta gränser. En studie av gotisk barnfiktion och dess position i den gotiska genren
Although research on gothic fiction has given limited attention to children?s fiction, the last two decades have witnessed an increasing interest. To date the focus has been mainly on English literature with a recurring tendency to define children?s gothic fiction as a text corpus separate from gothic fiction in general. As a result, children?s gothic fiction has become isolated and is not considered as part of the gothic genre, neither the literature nor its adaptations.The aim of this study is to view children?s gothic fiction as an integral part of the gothic genre.
AHA in northern Sweden ? a case study : conservation values of deciduous trees based on saproxylic insects
AHA is a Swedish abbreviation of "reveal threatened park and avenue trees" and is a method to assess the conservation value of individual trees, mainly in the park environments but also in natural stands. This method has previously only been practiced in southern Sweden (Sörensson 2008). To see if this method could provide satisfactory results in northern Sweden, I have studied it in areas around the Umeå River. This was done by studying the relationship between trees with different classifications of conservation value (as classed by the AHA method) and their content of species (species richness and abundance). Insects were collected using trunk window traps in a period of 13 weeks during the summer of 2014.
Val av tidpunkt för markberedning vid naturlig föryngring under skärm av Pinus sylvestris i Svealand : Timing of scarification when using natural regeneration in seed tree stands of Pinus sylvestris in Central Sweden
This thesis is built on a field study that was carried out in two seed-tree stands near by Götbrunna in Uppland, Sweden. The aim was to examine if scarification carried out in spring time could generate a more dense seedling establishment when using natural generation, than scarification carried out in autumn. It was also investigated whether there were differences in mortality the first season between the two plot-types. Plots were established block-wise with 50 blocks (pairs) on each site. The spring scarification was made with a hoe during 22-23 of April.
Evaluating six crop mixes used for game fields in southwest Sweden : biomass production, fallow deer preference and species diversity
Game fields are one way to divert animals away from sensitive areas, create shelter and forage, and also to increase the biological diversity. In this study I investigated how the plant composition in six different crop mixes used for game fields affected the biomass production, biomass consumption and biological diversity at the Koberg estate in southwestern Sweden. Six experimental fields were used and each field contained six plots, approximately 1500 m2 each, that was sown with a different crop mix. The crop mixes ranged from a pure grass mix (A), 70 % grass and 30 % leguminous plants (B), 53 % grass, 21 % leguminous plants and 26 % other herbs (C), 100 % leguminous plants (D) to the most complex mixes constituting of 91 % leguminous plants and 9 % other herbs (E) and 87 % leguminous plants and 13 % other herbs (F). The fields were cut weekly during the summer in 2010, to estimate weekly biomass production.
Diversitet hos jordlöpare (Col: Carabidae) i hävdade strandnära gräsmarker :
Diversity of ground beetles (Col: Carabidae) in managed riparian grasslands.
The carabid community in moist seminatural grasslands was studied at three different sites in mid-Sweden. Pitfall trapping was carried out during six weeks in spring and early summer 2003. Eight transects, each containing seven pitfall traps, were placed in three different management regimes, either late or continous grazing, or meadow.
The species composition was analysed by ordination analyses, i.e. DCA and CCA.