Many organizations utilize decision support systems in order to handle different tasks and tosupport the decision-making process. Decision support system is a broad term used to referto several different types of systems. These types of systems can handle a wide range ofoperations within the organization. Consequently this will have an impact on differentoperations within the organization. The main aim of this study was to create a betterunderstanding regarding the impact of decision support systems on the various operationswithin the City Council's procurement units which in turn will increase effectiveness.

There are many aspects which must be taken into consideration when studying individuals? need of exercise. The study investigates if impulsivity and Health Locus of Control affect the continuity of physical practise. The main presumption was that individuals with high impulsivity, high Powerful Others and high Chance Health Locus of Control, would have a significantly harder time to maintain a continuous physical activity. The survey used two standardized tests to measure impulsivity and Health Locus of Control and in order to be able to measure the insensitivity and the periodicity of physical exercise, a test was developed by the authors.

This thesis examines the establishment of auditors as third party assurers of sustainability reports in Sweden. This is done through a qualitative case study that examines the subject from both a preparer?s and an assurer?s perspective. Empirical data was analyzed using a combination of agency- and legitimacy theory. The study reaches the conclusion that sustainability reporting companies in the study demand a verification service for reported sustainability data in order to increase creditability, meet increased stakeholder demand and increased accounting complexity.

Performance of an intersection affects the total travel time in a traffic network. An intersection with good performance can easily be described by its contribution to lower travel time than in a comparable intersection. The travel time is of importance in the cost calculations when a specific intersection is to be chosen and designed. It is important to be able to make correct and precise performance calculations so that the cost calculations will not be incorrect. For that purpose the software Capcal, which is a traffic model for intersection analysis on performance, is used in Sweden.

Detta examensarbete har varit att ta fram ett koncept för ett second-screenlager till företaget Headwebs filmuthyrningstjänst. Denna rapport visar på hur tre second-screenfunktioner kan appliceras i en video on demand-tjänst. De tre funktionerna som applicerades var att som användare via sin second-screen välja på vilken enhet man vill se sin film, kontrollera filmens playbackkontroller och välja ut små filmklipp från filmen och dela dessa på sociala medier.Resultatet blev ett lo-fi-prototyp som visar hur de tre funktionerna kan appliceras på Headwebs iPadtjänst och listar för- och nackdelar med de olika konceptet..

Much of the everyday work of teachers in pre-schools, schools and youth centers is based on experience. This study is a qualitative interview study intended to make visible the experiences of pre-school teachers in situations when children are considered to be in need of special support. I have looked at pre-school teachers? descriptions of the kinds of situations in which a child is estimated to be in need of special support, what teachers look for in a child to identify it as a child in need of special support in a specific situation, and how the teachers define special support. Both this study and previous research show that children?s estimated need of support depends on the situation and context the child is in. The pre-school teachers in this study identify common situations where children are estimated to be in need of special support, namely: in interaction with others, in structured situations, during changes of activities and during free play.

The study examines the price elasticity of demand for cigarettes in the short- and long run in Sweden. The time period for the study is 17 years and covers the years 1996-2012. The results of the study shows that the price elasticity of demand for cigarettes in the long run is higher than in the short run for the Swedish consumers, which is in line with previous studies in the area. The fact that the price elasticity of demand for cigarettes is higher in the long run, indicates that the substitution effect has a significant impact on the price elasticity of demand for cigarettes in the long run. The study was conducted in two parts where the authors investigated the effect of cigarette tax on cigarette prices and in addition the cigarette prices impact on the demand for cigarettes in Sweden.

In the recent years auditing scandals all around the world, deficient internal control has attracted a lot of attention. This has contributed to further requirements on insight and internal control. Those scandals have seriously damaged the auditor?s profession and contributed to a reduced trust among the public. Therefore an extensive work to recover and stringed the trust was started all around the world.

The aim of this essay was to obtain an understanding about company owners thinking about the connection between having an own company, and the risks for an alcoholic abuse. The risk factor I was researching was stress, alcoholic culture, accessibility and rehabilitation.I have interviewed five owners of small companies, two women and three men, which represents four different kinds of branches. The theories I used in analysing the empirical findings where the theories of psychosocial work environment of Lazarus, Karaseks demand/control model, epidemiology- and culture perspective.I have found that the main stress factors for company owners where the economical stress and great load of work. The stress was also related to the fact that company owners of small companies often were alone with all the responsibility and problems.Women did not use alcohol very often as a tool to reduce stress. If individuals were using alcohol to reduce their stress, it also had to deal with their ability of coping and also what channels they had for coping..

Deicing fluids based on Propylene glycol are used at Stockholm Arlanda airport to remove or prevent ice on aircrafts. The high oxygen demand of propylene glycol can cause oxygen depletion in rivers downstream from the airport if not collected. Mass balance calculations made by Swedavia indicate that the actual amount of gathered propylene glycol is underestimated. Suspicions that propylene glycol is degraded in the stormwatersystem designed to collect deicingfluids, called the B-glycolsystem, have to be investigated in order to establish with certainty that no propylene glycol in other ways leaves the B-glycol system.The purpose of this study was to determine if degradation of propylene glycol is present in the B-glycol system and also to estimate the extent of the degradation. Propylene glycols high biological oxygen demand can cause oxygen depletion in waters downstream from Stockholm Arlanda airport if not collected.

Denna rapport beskriver arbetet med utvecklingen av en ny modell för kaplanturbiner. Utvecklingen bygger på två kopplade differentialekvationer som under arbetets gång anpassats och implementerats i turbinmodellen.Modellen beskriver hur vattenflöde och turbinmoment påverkas av avvikelsen från den optimala kombineringskurvan för vinklarna på turbinens ledskena och löphjul, och är anpassad för ett referensaggregat med tillgängliga provdata. Även övriga enheter i vattenkraftaggregatet modelleras och sätts samman med frekvensregulator och elnät för att simulera aggregatets reglerstabilitet i önätsdrift.Verifieringen av turbinmodellen sker genom försök att återskapa de befintliga verkningsgradskurvorna med hjälp av modellen. Resultatet visar en god följning av de verkliga kurvformerna, dock med något lägre maximal verkningsgrad.Verifieringen av önätmodellen sker genom att prova stabiliteten i nätfrekvens och turbineffekt vid stegpålastningar. Resultatet ger en stabilare reglerstabilitet än i verkligheten, men uppfyller ändå förväntningarna på en fungerande modell.This report describes the development of a new kaplan turbine model.

Several studies show that the clinical reality in psychiatric care does not correspond to the demand of consumer participation from a variety of policy documents that has been produced recently. Studies also show that there is a lot to do in improving, patients with sever mental illness, becoming more involved in their own care. The nurse has a central role in this work. The Norwegian nursing theorist Jan-Ka?re Hummelvolls holistic, existentialistic model for psychiatric nursing were used as theoretical ground.The aim of this study was to examine how nurses in psychiatric outpatient units, caring for patients with psychotic disorders, experiences consumer participation.Qualitative phenomenological method was used.

An organization must manage its resource consumption and material flows in order to satisfy the demand of its products as efficiently as possible. Managing of the aforementioned requires a balance between the organizations resources (such as the capability of distribution and production) and the market demand. According to Gardner (1990), an estimation of future demand is a necessity for maintaining the balance. An instrument that is used frequently to estimate future demand is demand forecasting. The demand forecasting practice has been thoroughly studied and a plethora of academic contributions exist on the topic.

The study's purpose is to describe students' experiences of help and support in mathematics. To investigate this, I adopted the questions: What does it mean, according to the students, to get "help and support in mathematics?" Are there differences in the description of help and support depending on the age of the students? What different kinds of help and support do students feel that they get from their math teachers? What different kinds of help and support would they like to have? The study is based on a qualitative method, group interviews, with three groups of students, one from each stage of primary school in one municipality in Sweden. The students were at the time of the interview in grade 3, 5 and 8. The interviews were analysed from a sociocultural perspective. The results show that what the students primarily consider as the meaning of help and support it is to get individual support from their teacher.

This study will examine if caregivers, working with people with dementia problems, is in need of support and in what way they see how the support should be designed. Previous research shows that there are many factors in elderly care that affect all of the caregivers. Working with people in this sort if dependence, requires a lot of the caregivers, both mentally and physically. To study if the caregivers consider themselves to be in need of support, and in what way they see how the support should be designed, the study employs a qualitative approach using to types of interviews, one focus group with four assistant nurses, and two individual in-depth interviews with the administrative personnel and one nurse. The results show that the need for support for the caregivers exists. Caregivers working with people with dementia problems, daily face difficulties, some more difficult to handle than others.