Aquaponics is a food production system consisting of a consecutive cultivation of plants and aquatic animals, fish or shellfish, in recirculating water. The plants feed on the nutritious effluents from the fish tank and bacteria converts ammonia from the fish tank into nitrate that is absorbed by the plants. The plants receive nutrition and the fish gain purified water. The environmental impact of the production of fish meal and fish oil used in conventional fish feed includes a large consumption of fossil fuels with subsequent carbon dioxide emission. The aquaponic system can be made environmentally sustainable and self-supporting if supplemented with a vermicompost/vermiculture for the production of worm protein as a fish feed. Vegetable waste from the hydroponic part of the system can be reused as worm feed in the compost and the protein rich worms can be harvested, dried and grinded and brought back to the aquaculture as fish feed. As a first step in this direction, I have investigated the effect of recycling of vegetable waste in vermicomposts on the growth and number of earthworms (this was evaluated after harvesting). The hypotheses were that earthworms can be cultivated in the vegetable waste and that by adding manure to the vermicompost it is possible to obtain a nutrient content adequate to support a continuous worm harvest, in other words create a vermiculture. Eisenia fetida and Dendrobaena veneta were grown in 20 L bins containing peat mixed with either poultry or cattle manure. The proportions were 70% peat and 30 % manure. Discarded plant parts from lettuce cultivation was added to the vermicomposts (35 g per week) and water was supplied with 0.8 L per week.

Presently Sjöfartsverket do their maintenance according to a standard program, which means that every maintenance task will be done when the task limit occurs. This leads to a very long downtime for the aircraft in some occasions and very short downtime in others. The goal with this work is to reach a higher regularity of the aircraft operation. To reach a higher regularity for the operational needs, this work will present a hypothetic better maintenance concept for Swedish Maritime Administration. The concept is based on equalized maintenance structure, which means that every maintenance occasions are meant to take the same time to perform.

The environmental monitoring in Sweden has been developed by several different parties and is now being coordinated and made more effective in order to meet the current demands on high quality information regarding the state of the environment. Sweden has been divided into five different water districts based on watershed areas because of requirements in the Water Directive of the EU. In Sweden there are two common types of environmental monitoring programs used to gather information on changes in time and in space. Currently both these two types are used for lakes in the water district of the western sea but only one is used for watersheds. The purpose of this report is to supply basic information regarding the possible need for a second environmental monitoring program for watersheds in order to better describe the spatial variation within the district as well as to determine the number of samples necessary in order to describe the district over time and space.

When a combined heat and power plant produces heat and power it often faces a deficit of heat load during the summer or other periods of time. This heat is often unnecessarily cooled away or the power production has to be reduced or shut off. If it is possible to store heat from periods with low heat demand to periods with high heat demand one can get many benefits. Among these benefits are: increased power production, decreased operation with partial load, uniformly distributed load.To be able to store heat in situations like this long-term thermal heat storages are needed. In this thesis five different types of stores are presented: rock cavern storage, tank storage, pit water storage, borehole storage and aquifer storage.

Inbjuden av Gustaf III, den franska teaterdekoratören, konstnären och arkitekten Louis Jean Desprez, i Sverige 1784-1804, förnyade teaterdekorationen på Operan. Genom att analysera Desprez? teaterdekorationer med inspiration från de abstrakta konstnärerna Mondrian, Malevich och Rothko, utvecklar uppsatsen ett nytt tolkningssystem som tillsammans med traditionell tolkning innebär en djupare tolkningsmetod. Detta visar att Desprez? teaterdekorationer var viktiga för Gustaf III:s kulturpolitik.

The aim of the "Green forest management plans" is to help forest owners to reach the environmental goal of the forestry act. But are they able to do that? Is it possible to plan preservation of species on single estates? How do single-estate-plans differ from a landscape analysis and how can the landscape approach be used in operative planning? This work was initiated to give an answer to these questions. This study was made in a landscape of 4200 ha in Östergötland county, south-eastern Sweden. A lanscape analysis was made and then compared to the Green forest management plans in the same area. The nature conservation areas (areas that were set aside to be managed with environmenatl goals) differed quite a lot between the two alternatives.

This study aims to examine the argumentation regarding freedom of speech and the statement ?je suis Charlie? (?I am Charlie?) in eight opinion articles from different Swedish web magazines. Two doctotral dissertations who?s main topics are the freedom of speech and different types of arguments regarding freedom of speach, was used in this study. The study also uses the actual Swedish law surrounding the freedom of speech, as well as the freedom of the press and breaches of these laws.

The aim of this work was to study if the edge of the forest is more resistant to heavy winds than the trees located further in from the edge, and how this edge effect changes between different types of tree species and site types. The data was collected from an electric power line going from the north to the south of Sweden. The mean value of the clearcutted area around the power line was 120 meters. The main direction of the storm in January 2005 was west-southwest and thus the power line was a perfect place for gathering a large data set. The main parameter studied was the damage frequency at the edge of the forest compared to the trees located further in from the edge (up to 100 m from the power line). Tree species mixture, soil moisture class, soil type, topography, stand height, stand height of the stand on the other side of the power line and wind exposition was estimated. The results showed a distinct edge effect. The edge of the forest had clearly lower damage frequency for all tree species. A marked difference was observed between tree species and damage frequency.

Background: Enterprises often refer to their employees as ?Our most valuable assets? in annual reports and other written statements. In reality, employees are seen as an expense rather than an asset in annual reports and the voluntary disclosure is often insufficient. Human capital disclosure has been discussed through decades and the latest topic in voluntary disclosure is called integrated reporting. Knowledge firms should disclose more about their employees than industrial companies due to the fact that the employees are a considerably more important asset to these types of enterprises.Purpose: The purpose of this thesis is to study the disclosure of human capital, compare the disclosures between knowledge firms and industrial companies, and study the development of the human capital disclosures between the years 2003-2013.

The study describes six upper secondary school students? thoughts of and stories about mentors and mentorship in secondary school. The mentorship has been studied with a hermeneutic approach from a narrative pupil relational perspective, which is influenced by the phenomenological humanity perspective. The aim of this study is to describe a few pupils? life worlds and to try to interpret how they describe and explain their own behavior related to mentorship and their mentors.

  Author: Moa di Zazzo EilertsenTitle: ?Children should not grow up like that. They may turn out the same?: Social workers, working with foster care investigations, reasoning about family and family structures of foster homes. [translated title]Supervisor: Annika StaafAssessor: Norma MontesinoThere has been a change in family structure which shows that the nuclear family, which is still the main form of family pattern, is becoming less frequent nowadays.

Introduction: The health for individuals with intellectual disabilities is asubject that is prioritized by the Swedish Institute for Public Health. Socialsupport has been proven to be important for health and quality of life. Despitethis fact there is no research available regarding the influence social support hason health and quality of life for people with intellectual disabilities in Sweden.Aim: To describe social support and the consequence of social support forhealth and quality of life for individuals with intellectual disabilities. Method:A litterature review of research in a defined area with a descriptive design.Systematic searches for articles were done in several databases and ultimately16 articles were chosen. Themes and categories were created with respect to theaim of this study during the analysis of the articles.

The initial provisions concerning CFC-legislation were introduced 1990 and has since been subject to several revisions and adaptations. The fundamental purpose of the CFC-legislation is to prohibit and prevent tax evasion undertaken by such companies that own other foreign companies where generated income is subject to low rates of taxation. The CFC-legislation aims to provide the Swedish government with an op-portunity to tax this income. This is important in order to prevent tax avoidance and preserve the integrity of the system of taxation within Sweden. In order for the CFC-legislation to be as effective as possible there must exist a clear way of defining which activity that is to be regulated within its scope.

The initial provisions concerning CFC-legislation were introduced 1990 and has since been subject to several revisions and adaptations. The fundamental purpose of the CFC-legislation is to prohibit and prevent tax evasion undertaken by such companies that own other foreign companies where generated income is subject to low rates of taxation. The CFC-legislation aims to provide the Swedish government with an op-portunity to tax this income. This is important in order to prevent tax avoidance and preserve the integrity of the system of taxation within Sweden. In order for the CFC-legislation to be as effective as possible there must exist a clear way of defining which activity that is to be regulated within its scope.

Introduction: The health for individuals with intellectual disabilities is asubject that is prioritized by the Swedish Institute for Public Health. Socialsupport has been proven to be important for health and quality of life. Despitethis fact there is no research available regarding the influence social support hason health and quality of life for people with intellectual disabilities in Sweden.Aim: To describe social support and the consequence of social support forhealth and quality of life for individuals with intellectual disabilities. Method:A litterature review of research in a defined area with a descriptive design.Systematic searches for articles were done in several databases and ultimately16 articles were chosen. Themes and categories were created with respect to theaim of this study during the analysis of the articles.