The ammonia emissions are an environmental issue since they contribute to eutrophication. By far the largest source of ammonia emissions is manure from agriculture and should therefore be reduced. Loss of ammonia is not only negative for the environment but also to the farmer who loses nitrogen that could have been used by the crop. The focus of this study has been emissions from spreading slurry where the loss can vary widely depending on slurry-, soil-, and weather conditions. There are mainly two different ways to reduce the emissions. One is to inject or mix the slurry into the ground to avoid air contact. The other way is to use acid to reduce the pH in the slurry to a level between 5 and 6 where the equilibrium is so strongly pushed to NH4+ that hardly any NH3 can be lost.

Bakgrund: Sexualitet hos äldre är precis som hos yngre en viktig del av livskvaliteten. Den sexuella förmågan och de sexuella behoven fortsätter långt upp i åren. Ett aktivt sexualliv har visat sig vara bra för välbefinnandet.Syfte: Syftet var att undersöka vilka faktorer som har en positiv påverkan på äldre kvinnors sexuella välbefinnande.Metod: En kvantitativ metod har används på ett redan insamlat datamaterial. Detta material består av omfattande enkäter som samlades in under åren 2000-2003. Huvudvariabel sexuellt välbefinnande har testats mot flera relevanta variabler.

Automatic milking systems (AMS) provide the opportunity for less manual labour and an increased milking frequency. But in order to reach an optimal milking frequency a well-functioning cow traffic is crucial. There are many factors affecting cow traffic but one factor that has not been studied thoroughly yet is the effect of different light intensities during the night, 22.00 h to 05.00 h. Therefore the aim of this study was to determine the effect of different light intensities during the night on number of selection gate passages (GP), milking frequency and milk yield. The study was conducted as a Latin square were three light intensities were applied: LOW (11 ± 3 lux), INT (33 ± 1 lux) and HIGH (74 ± 6 lux), in three different herds.

Stump treatment today requires large quantities of clean water mixed with the protective product Rotstop, to fully cover the stump surface. In order to reduce the water consumption without reducing the coverage of the stump surface, the pressure in the stump treatment device can be increased. Therefore, the Phlebiopsis gigantea (Fr.) Jül. suspension used as a biological control agent to prevent Heterobasidion annosum (Fr.) Bref. infection was pressure-tested.

Under det senaste decenniet har media och forskare talat om att ett stillasittande beteende inte är bra för dig, och att du därför måste du träna regelbundet för att hålla upp en god hälsa. Nyligen publicerade rapporter visar nu att ett stillasittande beteende, definierat som muskulär inaktivitet ökar risken för de flesta av dagens folksjukdomar och förtida död. Dessa risker är oberoende av fysisk aktivitet mellan dina stillasittande perioder. Stillasittande tid bör betraktas som en separat hälsorisk och livsstilsvariabel.Vissa är mycket stillasittande på sin fritid och andra har ett mycket stillasittande jobb. Men det finns en grupp människor som inte kan påverka sin egen stillasittande tid under vardagar, nämligen barnen och ungdomarna i skolan.

This bachelor thesis is about an ultrasonic sensor, implemented in a bubble chamber in Artis. The sensor consists of the piezoelectric sensor and an electronic control circuit. The control circuit consists of a programmable microprocessor, PIC18F2420 and a circuit, which sends the excitation signal to the piezoelectric sensor, and later receives the echo. This bachelor thesis consists also of a theoretical study, which examines different techniques of liquid level sensing in a chamber. The study discusses which factors are important in liquid level sensing and examine accepted methods.

Uppsalas nya konstmuseum har fått sina proportioner från det som redan innan fanns på platsen. Godsmagasinet, en låg avlång tegelbyggnad från 1908, har gett det nya museet dess form. Magasinet och museet sträcker ut sig längs varandra. Mellan dem byggs ett nytt torg på vad som tidigare var en parkeringsplats. I båda ändarna av byggnaderna leder trappor upp till torget som är upphöjt en bit ovanför trotoaren, i samma höjd som godsmagasinets gamla lastkaj. Idag inrymmer magasinet ett kafé, två butiker och en jazzklubb.

The Stockholm office market segment have for a long time been considered a safe havenwhen it comes to withstand negative turmoil in the form of rental compression due toeconomic fluctuation, especially in the CBD demographic. Recently however, a large numberof banks and institutions, amounting to some 200000 square meters, have decided to relocateto more peripheral locations with the aim of cost reductions on rent. This mass exodus isstudied with focus on rental dynamics as the result of increased vacancies. Other variables arestock changes and employment. The method is econometric combined with an interviewseries.

This work consists of two studies. One is based on an inquiery to nurseries with production of woody plants, and the other on visits to gardencenters, primarily in Skåne but also in Stockholm. Inquieries where sent to 87 nurseries, 48 of them replied. The purpous of the inquiery was to make a thorough investigation of the ligneous production at the Swedish nurseries, what is produced and in what quantities. Within the inquiery was also a thorough look at the fruit tree production. This to be able to conclude what cultivars that are produced and how large part of that production that is certified according to the Swedish Board of Agriculture (SJV).

During 2012, the employer of this essay carried out a telephone survey with 18000 participants and a web panel survey with 708 participants. Those who partook in the telephone survey were given a choice to join the web panel. The purpose of this work is to study the participants of the telephone survey and see if they reflect the Swedish population with regards to several socio-demographic factors. Also, we intend to investigate if the propensity to join the web panel differs for participants of the telephone survey with regards to various socio-demographic affiliations. It is also of interest to study if the response pattern is different for participants of the telephone survey that would like to join the web panel and those who reject.

The key purpose of this research has been to study and understand how young people with Syriac ethnicity experience their identity, when living in two different cultures. The Syriac minority is something of a special case when it concerns establishing the identity of an individual, since syriac´s do not have an official country.To be able to do this research an interview has been done with four young students with syriac ethnicity. The four of them is attending their final year at ?gymnasiet? in Sweden which is equivalent to USA?s senior year in high school.The multicultural school is today a fact and many immigrants attending the Swedish schools today feels misplaced when they meet the Swedish culture through fellow students and society. A clash between cultures occurs and most of the students, with non-Swedish ethnicity, live some kind of dual life.

Campylopus introflexus is a moss species that originates from the southern hemisphere and has spread worldwide during the 20th century. Today it is classified as an invasive alien species in many countries, and it has been seen during inventories that it has become widespread in Sweden as well. The purpose of this essay is to contribute to new knowledge about how this moss affects species diversity on Calluna heathlands in Sweden. The study includes both fieldwork and an analysis of scientific literature on the subject, and the question that is answered is if C. introflexus has an impact on species richness in the heather peat.

Enköping?s Rugby Club has long lacked a bigger hall to gather their members in, where they can meet and socializes outside trainings and games. Thanks to Enköping?s municipality, The Swedish Inheritance Fund, Swedish Sports Confederation, sponsors and club members the clubhouse will be built out with additional 100 square meters.The project is planned in two phases of which phase one is the buildup of the new clubhouse and phase two is the renovation of the existing part. Phase one started with the first groundbreaking in December 2006 and was finished for the season 2007.

The Swedish potential of electricity production from roof mounted solar panels has been determined in three steps: accessing the existing roof top areas, simulating the amount of electricity solar panels can produce on these areas and finally analyzing how large the necessary economical change is to make the solar cells profitable.The total existing amount of roof top areas are 319 square kilometers and the area distribution follows the distribution of people. This leads to an installed power of 47,9 GW which are expected to produce 49,0 TWh electricity per year. If the quality of the electricity is prioritized the highest the power is reduced to 3,7 GW, generating 3,8 TWh yearly, but if the hosting capacity is calculated from Sweden?s total electricity need, the capacity is 42 TWh per year.Today, solar panels are not profitable in Sweden for houses, even though there is a subsidy of 35 % of the investment costs, discounted in 25 years. The profitability is calculated with a cost of capital of 5 %, a price on electricity of 1 SEK/kWh and an investment cost of 20 SEK/Wp.

The purpose of this study is to examine the change in consumer behaviour regarding the intention towards buying fruit when the layout of the fruit section has been altered. We want to increase the probability of making impulse purchases by altering the layout. In our study we have combined structured quantitative observations with structured quantitative as well as qualitative interviews, with secondary data in the form of sales data from two selected ICA-stores. We chose to use this triangulated approach in order to cross-examine our findings and overcome the limitations of one method by the use of another. Further, the Latin square design was used for the observations as a means to acknowledge the calendar effect during the experiment.