På bullriga arbetsplatser använder personal ofta hörselskydd med inbyggda högtalare för att lyssna på exempelvis musik i underhållningssyfte. Om användaren lyssnar på höga ljudnivåer under långa perioder kan bullerskador uppstå i dennes öron. Enligt lagstiftning måste nivån därför begränsas i förebyggande syfte.Bullernivån är ett genomsnitt av de ljudnivåer användaren exponerats för under en arbetsdag. Användaren måste vila öronen om gränsvärdet för bullernivån nås.Om man utnyttjar att det är ett genomsnitt kan användaren tillåtas lyssna på en hög ljudnivå under en begränsad tid för att sedan sänka den. Det går att bevara både säkerheten och lyssningsupplevelsen om en sänkning införs långsamt.Detta arbete beskriver hur en algoritm till en digital signalprocessor kan konstrueras för att reglera ljudnivån.Målsättningen var att algoritmen skulle skydda användarens hörsel utan att försämra lyssningsupplevelsen, och utan att förbruka mer energi än nödvändigt.I algoritmen ingick en prediktor som predikterar mängden buller användaren riskerar att utsättas för, om denne fortsätter lyssna på samma nivå.Långsamma sänkningar av ljudnivån kan då utföras i tid innan gränsvärdet nås.Det visade sig att algoritmen endast behövde ett fåtal samplingar per sekund för att skatta och reglera ljudnivån tillräckligt precist, vilket reducerade energiförbrukningen.Resultatet visar möjligheten att kombinera målen för säkerhet, lyssningsupplevelse och energieffektivitet i hörselskydd.Algoritmen implementerades inte på ett skarpt system.Den hade enbart tillgång till ljudsignalen användaren ämnade lyssna på i underhållningssyfte..

Background: A large number of companies works as a link between manufacturers and final users. These companies buys and stores goods to be able to deliver when a need comes up later in the chain. The storage could have a negative effect on profitability and therefore places great demands on the management control systems. ABC as a method has been used with some success in manufacturing for over ten years. In wholesale companies the method is not frequently used.

Objective: To investigate the experiences of ambulance nurses when using Boussignac CPAPcompared to their previous model, and their suggestions for possible improvements in the use of CPAP in the care of patients with pulmonary oedema. Method: A qualitative study with a descriptive and exploratory approach. Data was collected through ten semi-structured interviews with ambulance nurses, seven men and three women. The analysis was conducted using Lundman and Graneheim?s content analysis.

Ett Film som projekt, en film om ljud, en film om ljudet i film. En film inspelad professionellt med professionella medarbetare. Kandidatarbetet gick ut på både skapa en film inriktad på ljud och skapa ett fungerande filmteam. Arbetet tar upp både det tekniska inom filmljud men även processen i ett filmteam. I arbetet följer vi processen från dess början till dess slut.

We have ourselves met misunderstandings about the tasks of librarians. The general opinion is that librarians are positioned behind the charging desk or are putting books on shelves. Other tasks are invisible and unknown to the public. The aim for this study is to explore the tasks that a selection of Swedish librarians does. The questions we have answered are: what do the librarians themselves claim to work with, which competences are necessary for this job, what does our study show regarding the librarian as generalist or specialist and finally; can the tasks that we find in our study help to understand the conceptions profession and status in relation to librarians.

Purpose: The purpose of this study is to examine how travel companies have adapted to a digital society and how they use the Internet as a marketing channel.Problem: How have current travel companies adapted to the development of the Internet and how do they use Internet as a marketing channel? Are there any differences in the marketing strategies of different types of travel companies and does the clientele have any impact on the selected marketing method?Method:  This study has been formed by a qualitative approach. Interviews have been conducted with employees at different travel companies across Sweden. The qualitative approach has been chosen to create a deeper understanding and give a broader knowledge to our study.Conclusion: Companies today use the Internet as one of their primary marketing channels, these are mainly websites and social media. The companies agree that aligning themselves after a digital society and new innovations is key to compete in the market.

Problem solving is a big part of design, however a lot of emphasis is put on creativity in research related to the effects of stress. Research has shown that the amount of stress we feel affects idea generation. Stress may also affect the ability to solve problems, however the researchers don?t seem to agree about what the effect of stress actually does.The study was made through experimental sessions where the respondents were asked to solve 4 matchstick puzzles of similar difficulty. Depending on their outcome they experienced more or less stress.

Abstract Thou there are much written about management, are there, according to Mintzberg no simple definitions regarding how managers should operate towards other co-workers or employees. This essay outlines a perspective for study of managers, from an employees point of view. The study was preformed at one private company, and the empirical data was gathered from five employees. The methodological approach contained qualitative methods based on semi-structured interviews. By using this method, a deeper understanding regarding the questions was desired.

The purpose of this essay is to examine whether the descriptions of Stalin's terror in history textbooks for high school changed from the 1950s until the 2010s. Since previous research shows that textbook content is influenced from different directions and that it dominates in teaching, therefore I want to find out what similarities and differences that exist in the textbooks. The survey is based on a qualitative approach because I want to have a profound picture of the descriptions of Stalin's terror. The results of the survey show that the number of casualties and the descriptions on the famine has changed over time. Furthermore, textbooks also found it difficult to distinguish between terror, politics and ideology.

ternal communication in an organization by using CSM Communication Situations Model [18[upps-01.gif The topic of this master thesis is internal organizational communication and factors influencing the way people in an organization communicate with each other. The purpose of the study is to, by using a specific model called Communication Systems/Situations Model CSM, identify the social context of a given organization and examine how it relates to the dimensions of communicational behaviour which are presented in CSM. We would also like to see how the different parts of CSM affects the choice of communication channels. The thesis is based on interviews with eight employees in the specific organization, whom we have asked a number of questions regarding how they communicate with each other and through which channels. The results show that the social context is very informal within the organization and the relationships between the employees are very open and personal.

This master thesis was initiated with the aim to answer at what level of installed capacity of wind power in the northern parts of Sweden it would be beneficial to improve the transmission capacity from the northern Sweden. During the process of this work the aim has changed to try and create a model that can be used to analyze how well the hydro power installed in the northern Sweden can even out the quick changes in wind power production.To create a good model of all hydro power in northern Sweden is a very large job, unfortunately too large for a master thesis. This report therefore ends with an extensive analysis of the simplifications that have been made and their effects as well as a list of the future work that has to be done.The model that has been created have shown to be effective and produce good results. The conclusions that can be made is that the northern Swedish hydro power have very good possibilities to balance the wind power production. Only a few cases where water have been spilled even though there has been some free capacity has been discovered.

Background: From the beginning of the 60´s until the beginning of the 80´s the swedish local government has expand enourmously. The expansion didn´t lead to any discussions about how the local government should be controlled or organized. The local government should instead be organized and controlled as administrations. Lately it has became more usual to have these discussions about how local government should be controlled and organized. Nowadys it´s not unusual that local governments imitate private companies.

After the tsunami disaster in December 2004 many arguments were heared that one oft the major reasons behind the poor Swedish effort connected to the evacuation and health care of the Swedish citizens in Thailand right after the incident is the Swedish model with independent government authorities. By comparing the constitution, the political decision making tradition by the ministers and the handling of the catastrophe in the tree Scandinavian countries Denmark, Norway and Finland, plus analysing the behaviour of the Swedish foreign and prime minister from a rational choose inspired individual decision making theory the research shows that there is no proof that a constitutional change in Sweden into the traditional model with government authorities controlled by the ministers alone would led to a more effective crisis handling by the government due to crises concerning Swedish citizens out states. Although the research shows that the constitution and the tradition of decision making in the government provides the basic condition of the ministers individual rational decision making.

Samhällets digitalisering innebär stora möjligheter till spridning och återbruk av informationsamtidigt som digitala klyftor skapas. Bland de medborgare som inte till fullo anammat den nyatekniken återfinns en stor grupp äldre, något som påverkar dessa individers möjligheter till en höglivskvalité i form av delaktighet, oberoende och god rörlighet. En aspekt i detta sammanhang äräldres möjligheter att åka kollektivt och på egen hand planera och genomföra resor, något somförutsätter en god tillgång till och förståelse av kollektivtrafikinformation. Föreliggandeexamensarbete avser här att belysa kognitiva effekter av det skifte i interaktionsmiljön som sker närkollektivtrafikens tids- och linjeinformation digitaliseras. Studien baserar sig på en situerad ansats tillmänniskans kognition, ett teoretiskt perspektiv som innebär att tänkandet baserar sig påmultimodala konceptuella erfarenheter.

Risk management is a key competency that is constantly being researched how it can be improved within project management. The risk management process consists of four major steps: identify risks, assess the risks? significance on the project, evaluate and address the key risks and follow up.The majority of companies seem to neglect certain identified risks, and decide not to mitigate if the risk does not cause adverse effects to the business. To counteract undesirable consequences and help organisations to become more effective at managing risks an initial work has been conducted for a risk repository.The project develops a proposal on the design of a risk repository which aim to effectively support a database implementation. The study includes literature studies which resulted in a relational model for database implementation.