Käppala wastewater treatment plant situated on the island of Lidingö northeast of Stockholm is running a project during 2004 and 2005 with the purpose to map out the capacity of anaerobic digestion in the digesters that treat primary and excess sludge. The purpose of this thesis work, which is part of that project, was to characterize the present anaerobic digestion process and to investigate its capacity to treat other organic wastes such as restaurant waste and waste from water works. To decide the potential of both methane and biogas production from different substrates batch laboratory tests were carried out. To imitate the anaerobic digestion process at Käppala continuous tests with small scale reactors were carried out. These reactors were later fed with restaurant waste.The batch laboratory tests showed that primary sludge had a potential biogas and methane production of 0,62 and 0,35 Ndm3/g VS respectively after 40 days of digestion.

The purpose of this study is to discuss the use of social media by the Swedish Police for democratic purposes. The idea of citizen empowerment is closely related to the development of new communication technologies such as social media. Yet many studies indicate that governmental institutions rarely make use of the assumed potentials of social media.In this study, the democratic potential of social media is derived from Habermas normative concept of deliberative participation. Operational definitions emphasize discursive equality, interactive reciprocity and external impact. The analytical framework is combined with qualitative text analysis to highlight the conditions of interaction between representatives of the Police and citizens.In conclusion: the democratic potential of social media, from a Habermasian point of view, is to a significant extent neglected at the expense of its strategic advantages.

The aim of this study is through a policy analysis to illuminate the decisions that the EU has taken to respond to the terrorist attacks in the US, Madrid and London and through this analysis try to explain the problem of each decision and find out if these decisions might risk the individual rights of the European Union?s citizens.In order to reach this purpose the following questions are to be answered: In what way has the EU?s decision-making process, regarding its fight on terrorism, been affected by the terrorist attacks in Madrid and London? What consequences may the EU?s decisions against terrorism have on the individual rights?The method that has been used is qualitative studies of literature and the main material is overarching policy documents from the EU.The conclusions are that the bombings in Madrid and London have increased the speed of the decision-making process and more areas have been included in the union?s fight against terrorism. If individual rights are at risk by the union?s decisions there are reasons to be concerned. But my conclusion is that the European Union has to have strong and effective instruments to answer to the threat of terrorism..

The Swedish security policy has changed from stressing neutrality to embrace co-operation within the EU and other organisations. New threats like terrorism, boarder-crossing criminality and natural disasters require new ways to deal with this type of problems to protect the society. Since the beginning of 21st century the high Russian economic growth has made it possible for the country to play an increasingly role as a superpower on the international political stage. In the same time the democratic development has been replaced by an autocratic rule which has obstructed the Russian- European relations. From a Swedish security policy view the Russian political development is of importance and the picture of Russian as a threat has changed from 1996 to 2008/09.

The purpose of this article is to describe the discourse in which public-private partnership (PPP) resides, within the Swedish parliament, in the field of infrastructure. I have chosen to look at the latest three years deliberation where PPP appears in parliament bills.This case study is based upon discourse as a qualitative method. Five indicator signs which is history, comparison, geographic location, vision of growth potential and solution controls the context of PPPThe result of the analysis was that a clear discourse was unravelled. A first rather surprising conclusion shows that it is possible to disconnect the discourse from PPP. PPP is not important by itself, the result shows that it only play the part of possible solution to the problems related to the discourse and does not have any value in its own.This result lead the conclusion that PPP is no more than a tool for politicians to get as much out of their infrastructural aims as possible, as rational vote-maximizing actors.

Various electromagnetic (EM) treatments has been investigated for their potential in improving crop productivity over the past century. There is today an increasing amount of scientists advocating EM treatments as an organically compatible method for improving plant growth and yield. However, failure to produce repeatable effects and defining causal mechanisms has made it a study of much controversy and debate. The subject requires indepth interdisciplinary knowledge, making it inaccessible for the majority of biologists, horticulturists and growers. In this combined literature review and pilot study, these issues are addressed by providing a comprehensive introductory review of the topic plant bioelectromagnetics and its potential horticultural usability.

I uppsatsen analyseras representationer av den groteska kvinnliga kroppen i feministisk konst. Alltfler konstnärer väljer att i sin konst utforska gränslanden i uttryck, så som det karnevalistiska, hysteriska och motbjudande. Utifrån en fallstudie som fokuserar på tre nutida konstnärer vilka arbetar med det groteska uttrycket vid framställningar av kvinnliga kroppar studeras intentionerna bakom deras verk. Kropparnas emancipatoriska potential problematiseras därefter utifrån postkoloniala teorier, feministisk konstvetenskap och queerteori. Att använda representationer av en kropp som definieras som kvinnlig är inte ett ofarligt projekt.

As the Swedish governments long term goals include a reduction of fossil fuel dependency, increasing pressure is placed upon energy companies to create and develop new solutions for renewable energy. The following case study was done in collaboration with the company Sydved Energileveranser AB and one of their contractors, Enarssons Skogsentreprenad AB. The objective of the study is to examine the bioenergy situation in region of Skåne and evaluate the potential solutions in the region for a forest-fuel assortment, based on a bioenergy-cutting-system. As a part of this study I have compared ordinary manual cuttings done with a chain saw and cuttings made using the new ?bio- energy cutting system?. The cuttings made under both systems were tested in areas near agricultural fields or pasture land in order to maintain an open landscape.

Augmented reality is an interesting technology which has increased in popularity the last couple of years. Even though we see more and more of this technology the use of it doesn?t match up to its true potential. This paper aims to investigate the possibilities of this technology and illustrate how companies can use it in their business to reach out to customers in a new and exciting way. The study consists of three parts.

VEP, visual evoked potential is an electrophysiologic test that can be used for evaluating the higher visual pathways. The aim of this study was to investigate if it is possible to adapt this method to horses. This method could have a clinical use in addition to the existing diagnostic methods that are available to evaluate vision in horses. Firstly, this study contains a summary of relevant studies done on animals and, secondly, an experimental part where the possibility of recording VEP in nonsedated and sedated horses is investigated and where to position the recording electrode to obtain the best results. Our results show that it is possible to record VEP in horses in a clinical setting. VEP was best recorded in the sedated horse to avoid movement artifacts and other disturbances.

One important issue faced by companies is to secure their information and resources from intrusions. For accessing a resource almost every system uses the approach of assigning a unique username and a password to all legitimate users. This approach has a major drawback. If an intruder gets the above information then he can become a big threat for the company and its resources. To strengthen the computer security there are several biometric methods for identity verification which are based on the human body?s unique characteristics and behavior including fingerprints, face recognition, retina scan and signatures.

The purpose of this study is to discuss the use of social media by the Swedish Police for democratic purposes. The idea of citizen empowerment is closely related to the development of new communication technologies such as social media. Yet many studies indicate that governmental institutions rarely make use of the assumed potentials of social media.In this study, the democratic potential of social media is derived from Habermas normative concept of deliberative participation. Operational definitions emphasize discursive equality, interactive reciprocity and external impact. The analytical framework is combined with qualitative text analysis to highlight the conditions of interaction between representatives of the Police and citizens.In conclusion: the democratic potential of social media, from a Habermasian point of view, is to a significant extent neglected at the expense of its strategic advantages.

Most of the city of Uppsala rests on postglacial clay with a varying content of sulphur. The sulphur occurs naturally in the clay in reduced form as sulphide and the clay is for that reason usually called ?sulphide clay?. Excavation during construction activities gives rise to large amounts of excavation material, of which the sulphide clay is a considerable part.When the clay is exposed to air and water, an oxidation of the sulphides occurs which may produce an acid leachate and the mobilisation of heavy metals bound in the clay or underlying material. The aim of the work has been to improve our understanding of the behaviour of sulphide clays and produce a basis for risk assessment in the future handling of excavation material with high sulphide content.

Poland has since 2021 dealt with the migration crisis at its border with Belarus and when the new government took power in 2023, many had high hopes for its management of the crisis. But the government has opposed the EU's migration policy and continues the strict migration policies of the last government, which earlier studies have theorized, if it?s sign of a securitization of EU?s own migration policies. This essay examines the experiences of activists who work at the border, by performing interviews and a thematic analysis regarding the Polish state?s handling of the migration crisis with the change of government in 2023 and how they see that it has affected Poland and EU?s relationship.

I det här arbetet undersöks och jämförs två olika sökalgoritmer när de används för implementation av AI-spelare till brädspelet Pentago. De två algoritmerna som användes var alfa-betabeskärning och en nyare algoritm som kombinerar genetiska algoritmer och minimax, kallad genetisk minimax. Utvärderingen av resultaten visar att alfa-betabeskärning passar bättre vid implementation av en AI till Pentago än genetisk minimax. Alfa-betabeskärning med ytterligare optimeringar har potential att lämpa sig väldigt väl för implementation av spelare till Pentago. Ytterligare visar resultaten att genetisk minimax inte är en passande algoritm för AI till Pentago.