The ability of dairy cows to survive and the economic importance of this have been in-creasing in dairy cattle breeding lately. Increased longevity contribute to an increased pro-portion of cows that produce milk in more productive lactations and reduces the replace-ment costs together with a good health and fertility. Unfortunately it is often argued that longevity has been decreasing due to a strong selection for production traits in dairy cattle.The aims of this study were to find Correlations between different longevity evaluations and between different estimates on longevity and other traits in the Nordic Total Merit (NTM) breeding value. The aim was also to compare different traits for cows of two differ-ent longevity groups.The data were Predicted Breeding Values (PBV) from Nordic HOL and SR bulls and records from Holstein (HOL) and Swedish Red (SR) cows estimated by the Swedish Dairy Association.The three Swedish longevity indexes were very highly correlated (>0.89) and the corre-lations between the Swedish official longevity index and the five Nordic Cattle Genetic Evaluation (NAV) longevity indexes varied between 0.73-0.83.In the sire evaluation part, the traits most negatively correlated with longevity for HOL were dairyness, protein and fat index. In SR, milk, protein, and fat index only had slightly positive Correlations with longevity.

Det förekommer mycket forskning kring brytning hos andraspråksinlärare. Många studier använder sig av modersmålstalare som har skattat brytning hos andraspråksinlärare på en Likert-skala (Jesney, 2004). Ett mål med föreliggande studie var att bidra till en ökad insikt om och hur personer med svenska som andraspråk uppfattar utländsk brytning i svenska på samma sätt som en modersmålstalare gör och om det fanns något samband mellan förmågan att uppfatta brytning och förmågan att utrycka sig på svenska.  Djupare analyser gjordes av perception och produktion hos andraspråksinlärare. Designen på studien bestod av tre grupper och omfattade 42 deltagare som representerade 15 språk . Två av grupperna innehöll andraspråksinlärare och den tredje gruppen bestod av modersmålstalare.

AbstractElectricity consumption is a globally increasing problem caused by the high share of electricity produced in coal power plants. These contribute to high carbon emissions when only about 1/3 of the heat generate electricity and the remaining 2/3 of the heat cools off. Combined heat and power plants (CHP) have high efficiency because they use the residual heat for domestic heating. The CHP plant often use fuels from renewable resources, giving them a lower carbon footprint, but are also depending on the heat demand. If electric powered products such as drying cabinets convert to heat powered products more environmentally friendly electricity will be produced by CHP plants, which can supplant electricity, produced from coal power plants and reduce carbon emissions.

The Swedish household?s savings has increased the last couple of years, according to Statistiska centralbyrån. But the amount of households that trades on the stock market has decreased from the year 2012 to 2013. The diminished interest in stock trading carries a risk by leading to a smaller yield for the private savers, and also effect the business development and the economic growth. High brokerage fees will aggravate the ability to attract venture capital.

Metan är en stark växthusgas som är viktig att ta med i beräkningarna när det gäller klimatförändringar. Feedback från myrmarker vid en ökad temperatur i samband med klimatförändringar har diskuterats, bland annat eftersom myrmarker är en källa för metan till atmosfären. Det finns många faktorer som påverkar metanemission, och en av dom är vegetation. Olika sorts vegetation tros bidra olika mycket till avgivningen av metan. Syftet med denna studie var att undersöka hur stor betydelse det har att ta med olika växtsamhällens sammansättning i beräkningarna för att uppnå korrekta uppskattningar av metanemission från myrmark på ekosystemnivå.

Som ett sätt att bygga upp en väldiversifierad portfölj har det under de senaste decennierna blivit allt mer populärt bland investerare att ta positioner i råvarufutures, då de historiskt har ansetts visa upp låg eller till och med negativ korrelation mot aktiemarknaden. Flera tidigare studier visar på ett nytt förhållande mellan dem sedan finanskrisen 2008. Studierna finner att korrelationen har ökat under det senaste decenniet. De finner en strukturell brytpunkt vid finanskrisen som skiftat korrelationen betydligt uppåt, till den grad att diversifieringseffekten av att hålla råvarufutures i sin portfölj kan vara förändrad. Studierna kommer fram till olika slutsatser angående vad som kommer att ske med korrelationen när krisen är över och marknaden åter har stabiliserats.

In the beginning of the 21th century several successful companies filed for bankruptcy. These bankruptcies have been known as large accounting scandals and the largest scandals did Enron and Worldcom stand for. These bankruptcies arose without any warning signal from the auditors about the companies? financial problems and their inability to continue as a going concern. The bankruptcies damaged the reputation of auditors and broad criticism has developed at the auditors? inability to discover companies? financial problems and their unwillingness to reveal a going concern opinion in the audit report.

Intense competition among companies and luck or unavailability of certain resources in country of company?s origin force last to cross the borders, and start to hunt for new markets and cheaper inputs. However, by investing abroad the company is not only facing and dealing with cultural differences and new regulatory framework, but also becomes dependent on decisions and actions of different and to large extend unknown government. Moreover, the majority of the investments? flows are directed to developing countries, where power and capabilities of state authorities are considered to be more extensive than in countries of developed economies.

The past and ongoing structural change in Swedish agriculture has led to an increasing number of large-scale farms. The biological factors associated with large-scale farming operations may cause increasing variability, risk and reduced yields due to sub-optimal timing and management of field operations. The theory of economies of scale suggests that largescale production may benefit from lower costs due to scale efficiencies. Thus, large-scale farms may face cost reductions in terms of long term inputs factors, e.g. agricultural machinery.

In this thesis, two studies with different drills were included. In one of the studies two drills were compared: Väderstad Rapid and Väderstad Spirit. In the other study various drills for direct drilling were compared. The study with Rapid and Spirit was placed in two locations with different autumn tillage; one on ploughed land in Uppsala and one on cultivated land in Västerås, both with relatively high clay content. Rapid drills have a single disc coulter, while the Spirit drills have a double disc coulter. Various aspects were compared such as aggregate distribution, seed placement, emergence, crop yield and economic outcome.

Hallsta paper mill uses large amounts of water during the pulp and paper making processes. The wastewater is treated in two separate activated sludge processes referred to as BIO 1 and BIO 2. The main aim is to reduce the organic substance content, measured as COD (Chemical Oxygen Demand) before the wastewater is released into the environment. Since the effluent produced is very rich in organic substances, the addition of nitrogen (N) and phosphorus (P) are necessary to give satisfactory treatment results. Problems with sludge bulking sometimes occur which lead to increased levels of suspended matter and nutrients in the effluent.

The municipality of Västervik, with support from Envipro Miljöteknik AB, is carrying out a main study of the minefields at Gladhammar. Mining of iron, copper and cobalt under different periods from the 16th century until the end of the 19th century has led to discharges of metals to the lakes situated downstream. The aim of the main study is to investigate the possibilities to reduce the environmental load on the surrounding ground and water caused by heavy metals from the mine. The present report is a part of the main study. The aim of the work is to investigate the geochemistry of the groundwater.

Syftet med denna uppsats är att utröna vilka genusnormer som förekommer inom det skoldiskursiva fältet och huruvida skönlitteratur är en del i detta. Utgångspunken i min uppsats är att genuskodat språk inverkar på flickors och pojkars möjliga språkutveckling och identitetsskapande. De frågor som ställdes var: Uppfyller dessa texter de krav som läroplanen ställer på att ge flickor och pojkar stimulans i den språkliga utvecklingen oberoende av kön, vilka beskrivningar av genus återfinns i de skönlitterära böckerna samt har de i böckerna ingående karaktärerna olika handlingsmöjligheter och egenskaper ur ett genusperspektiv? Genom en diskursanalys av sex skönlitterära böcker läst av en år 4 har jag utkristalliserat de meningar som beskriver pojk- respektive flickprotagonister. En intervju med läraren gjordes för att ringa in hur dessa elever valt sin litteratur.

To understand the motives, and perhaps more importantly the barriers, for farmers to convert from conventional to organic farming is of great interest for policy makers as well as for academics. In Sweden and in other EU countries, proposed targets of the area in organic farmland have failed to be reached in spite of different kinds of policy measures. Most studies agree that the average profitability seems to be comparable to or better in organic than in conventional farming. This would indicate that there must be other factors of importance which can explain the low particiapation rate. A higher perceived risk in organic farming with respect to yield and price is frequently brought up as a potential explanation within a qualitative framework.

Genetic parameters for four leg conformation traits in dogs (Canis lupus familiaris) are in this literature review summarized to investigate whether selective breeding could be useful to improve purebred dogs´ health and welfare. The four traits are leg length, leg weakness, hip joint and elbow joint conformation. When summarized, the genetic parameters are compared with genetic parameters affecting in pigs (Sus scrofa). Of the four traits, hip and elbow conformations were mostly studied in dogs. However, these traits were not widely studied in pigs.