A growing problem in Swedish herbicide free agriculture, the Canadian thistle has been the object of several new trials, seeking methods for non-chemical weed control. The new trials have mainly confirmed earlier experiences; that the most successful methods of control are springtime ploughing, repeated cutting and competition from a stout crop. Row hoeing has also been proven effective. As opposed to earlier recommendations, half season fallow has shown to be a risky and often ineffective method of control. Trials regarding biological methods have shown that above others thistle rust (Puccinia punctiformis) may have the potential of controlling Canadian thistle the future. .

This study is about how changed light conditions induce dormancy in plants. It is divided in two parts. First a literature study where quantification of light, the concept dormancy, photoperiod and light quality are discussed. Second an experimental part, where the importance of light for sprouting capacity in root buds of perennial sow thistle (Sonchus arvensis L.) is investigated.In the science in how flowering in plants are induced the concepts short day/long day plants and light dominant/dark dominant are well-established. These concepts can also be applied to how light induce dormancy in plants.

This study forms part of the R&D project "Improved survival of bird chicks in organic fields" managed by the Rural Economy & Agricultural society in Uppsala. The skylark (Alauda arvensis) is a species that has decreased drastically in Sweden as a consequence of more intensive cropping. Studies in England have shown that skylark reproduction can be greatly improved within conventional fields, at a low cost, by establishing patches of bare ground (skylark plots). Within conventional farming, herbicides can be used in case a weed problem arises due to implementation of these skylark plots, whereas this is not allowed in organic farming. This study examined the effects of skylark plots on the weed culture in organic autumn-sown (winter) cereals and whether weeds might cause long-term problems to farmers. The study was conducted in two parts; a field study and a review of the literature regarding the weeds observed. The field study was carried out in 2007 during three weeks in June and three weeks in July, on eleven organic fields with winter cereal in the vicinity of Uppsala.

The Swedish Board of Agriculture initiated this undergraduate thesis. There is a database on their homepage that includes chemical treatments for different weed species. There is also space for preventive and mechanical control methods. This is an undergraduate thesis that reviews these control methods for the most important weeds in Sweden. The species reviewed are: Creeping perennials: Common Couch Elytrigia repens (L.) Desv. ex Nevski Creeping Thistle Cirsium arvense (L.) Scop. Perennial Sow-thistle Sonchus arvensis L. Field Horsetail Equisetum arvense L. Colt's-foot Tussilago farfara L. Stationary perennials: Dock Rumex L. Mugwort Artemisia vulgaris L. Dandelion Taraxacum F.

Syftet med uppsatsen var att undersöka synskadade personers upplevelser av hur den fysiska miljön påverkar val och utförande av fritidsaktiviteter. Fyra synskadade personer i arbetsför ålder deltog i studien. Intervjuer utan standardiserat frågeformulär användes som metod. Materialet klassificerades först utifrån de fyra miljöer som beskrivs i Canadian Model of Occupational Performance (CMOP). Där efter klassificerades materialet utifrån indelningen av fritidsaktiviteter enligt Canadian Occupational Performance Measure (COPM).

The objective of this study was to determine the mineral content in ten New Zealand monofloral honeys, in order to distinguish whether New Zealand monofloral honeys are a good source of minerals compared to honeys from other parts of the world. The ten monofloral honeys were collected from a local honey factory (Airborne Honey Ltd, Leeston), Clover, Honeydew, Kamahi, Manuka, Nodding Thistle, Rata, Rewarewa, Tawari, Thyme and Vipers Bugloss honeys were been investigated. The water content, water activity, pH, conductivity, colour and mineral content were evaluated. The water activity was averaged for all the ten New Zealand monofloral honeys and set to 0.59 aw, which indicates a high stability and long shelf life as a food stuff. A strong correlation between total mineral content, pH, conductivity and colour was obtained.

The purpose of this study was to examine domestic adoptions in Sweden, and also compare the Swedish adoption system to the Canadian adoption system. I wanted to find out why there are so few domestic adoptions in Sweden, and how it has changed over the years. I also wanted to know why there is such a large difference between Sweden and Canada regarding adoptions.I interviewed five social workers to find out what attitudes the social services have regarding adoptions. My other questions were how the childs best interest is considered when a parent wants to place a child in an adoptivefamily, and which parents decide to place their child instead of keeping it.I found that the social services are reluctant to place children in adoptivefamilies because their main goal is to keep biological families intact. In Canada the social services goal is to provide the child with a safe and stable home.There is no longer any stigma surrounding single mothers and well developed welfaresystems enable most to keep their children.

The aim of this thesis is to examine the impact that clothing has in Margaret Atwood?s novel The Blind Assassin from 2000. The essay begins with a brief overview of how clothing has been acknowledged in different areas of research. The overview leads up to the conclusion that fashion, as well as clothing in large, has been overly ignored as a potentially fruitful subject of academic status. This is much due to the fact that fashion is traditionally regarded as being a classically feminine subject, as well as it can be said to be a result of fashion?s very elusive character.

När en person inte kan vara delaktig i meningsfulla aktiviteter kan hjälpmedel vara ett måste för att underlätta. Studier har visat att elrullstol möjliggör delaktighet, och detta kan därmed leda till en ökad livskvalitet. Fyra personer medverkade i denna studie, baserad på Canadian Model of Occupational Performance, CMOP. Två tekniker användes för datainsamlingen. Dels utfördes en intervju och dels skattade informanterna, med hjälp av VAS, sin upplevelse av delaktighet och livskvalitet före och efter att de fått sin elrullstol.

I Sverige ökar stressrelaterade sjukdomar som sjukskrivningsorsak och det blir allt viktigare att satsa på preventiva insatser. Studenter i allmänhet, och däribland arbetsterapeutstudenter, konstateras i tidigare studier vara utsatta för stress. Upplevelse av stress under studietiden samt konsekvenser på aktivitetsutförandet ökar risken för att ta med beteendet in i kommande yrkesliv där arbetsterapeuter träffar patienter med stressrelaterade besvär. Därför är det viktigt att de själva inte har dessa problem. Syftet var att kartlägga om arbetsterapeutstudenter upplever stress i samband med studierna, och i så fall vad som utlöser den samt vilka konsekvenser detta får för aktivitetsutförandet i det dagliga livet.

This study investigates whether the site index curve method (SICM) and the growth intercept method (GIM) can be used for site index predictions in younger Norway spruce (Picea abies (L.) Karst.) stands than recommended by current guidelines. For SICM it was thus investigated whether the method could be used for stands younger than ten years, and for GIM it was tested whether a starting point for the intercept measurements could be used below the recommended 2.5 meter. This was tested based on measurements taken from experimental stands in Tönnersjöheden Research Forest. For GIM it was found that the method can only be used when the TH-trees of a stand have five complete intercepts above 2.5 meters. For the method to be applicable beyond this, it will be necessary to adapt the underlying equations, perhaps following the Canadian example where a 1.3 meter intercept start is used. In conclusion it is not currently possible to apply the approach beyond the current recommendations. For SICM, SI predictions are accurate for the study area already form year three.

Långvarig smärta är ett problem för många människor i hela världen och kan innebära svårigheter att utföra de aktiviteter man vill, måste eller förväntas utföra. Syftet med uppsatsen var att beskriva vilka dagliga aktiviteter patienter med långvarig smärta ansåg vara viktigast att förändra samt att undersöka om aktivitetsutförande och aktivitetstillfredsställelse förändrades efter smärtrehabilitering. Studien genomfördes efter avslutad rehabilitering på en multimodal smärtrehabilitering i Skåne. Undersökningsgruppen bestod av 46 patienter, 11 män och 35 kvinnor. Instrumentet Canadian Occupational Performance Measure (COPM) användes samt patienternas egna kommentarer till förändringen kategoriserades och sammanställdes.

The Arctic region is rich in natural resources such as oil, gas, minerals and fish. Climate change causes the Arctic ice melt, making resource extraction possible as well as opening up new transport routes through the Northwest Passage and the Northeast Passage. This has led to competition and cross-border strife among the Arctic States. The two largest states in the Arctic are Russia and Canada, which are also members of the Arctic Council. Russia and Canada are at the moment involved in several disputes regarding the Arctic territory where the ownership of the North Pole is one example.

Beef cattle wintering outdoors should be provided a shelter, e.g. a type of barn or corresponding. This type of production requires appropriate soil types and secured animal welfare. For example, a clean and dry resting place needs to be provided to the animals. To receive an exemption for buildings the farmer has to have something equivalent that provides an adequate shelter.

In the latest edition of NRC (2007) the feeding recommendations for Ca and P to growing horses were increased with 35 and 25 %, respectively, based on results from a Canadian study showing that daily endogenous fecal losses of Ca and P were greater than previously suggested. A Ca absorption efficiency of 50 % is used for all horses. However, the true absorption efficiency might be as high as 70 % in young horses. P absorption efficiency is assumed to be higher for growing horses because their diets are often supplemented with inorganic P. Thus, an efficiency of 45 % is used for growing horses as compared to 35 % for mature horses.