Dokumentet är ett resultat av studier gjorda under kursen Kandidatarbete I Datavetenskap. Arbetet utforskade, genom fallstudie, två egenskaper av distribuerade informationssystem och relation mellan dessa: säkerhet och prestanda. Målet med fallstudien har varit att belysa nackdelen med användning av Secure Socker Layer (SSL) dvs. dess effekt på hastigheten och fördelen med SSL, dvs. SSL:s roll i informationssäkerhetsarbetet.

Stormwater in urban areas has been treated as a problem for a long time. The large proportion of impermeable surfaces inhibits the water from infiltrating in the ground to the same extent that it does in nature. This causes intensive surface flow during rain, which in turn causes inconveniences such as decreased accessability, floods and increased risk of desease spreading. Drainage through pipes is the traditional and usually functional metod for storm water disposal. That is as long as water flows are moderate. But precipitation varies naturally in amount and intensity and additional impermeable surfaces make some pipes insufficient for heavy or lasting precipitation.

During the last few decades a new kind of business operation have developed and this hasforced organisations to adapt themselves to a new competitive environment characterized byincreased customer demands as well as a larger amount of competitors. Therefore companieshave had a shift in their strategies from focusing on sales numbers to focusing on thecustomer. To build lasting customer relationships, in order to create customer loyalty, havebecome an important part of the organisational strategy and the collection of consumer datais essential in achieving this loyalty. Customer relationship management systems assistorganisations in managing information about individual customers as well as managing allaspects of customer contact, with the purpose of increasing customer loyalty towards thecompany. The collection of consumer data also enables for companies to design personalizedoffers to individual customers in the form of direct marketing.

Today's unsustainable resource use is influenced by many factors. One key factor isproduction methods and patterns. Trough change of production patterns enterprises can bepart of the solution to a more sustainable society. This case study has analyzed environmentalperformance of the printer company Edita Västra Aros Ltd (EVA), who has gained awards forits environmental work, and what driving forces they have had during this work. The survey isbased on a qualitative method and the collected data consists of documents and staffinterviews, which have been analyzed with content analysis.

Regulations on the exhaust emissions of HD-diesel engines are becoming more and more stringent, and therefore, emission after-treatment systems are commonly used. These systems rely on catalytic conversion of NOx,CO , and HC emissions, and are thus dependant on temperature. At low load of the engine, exhaust temperatures are not sufficient for the after-treatment components. Therefore, means to increase the exhaust temperature while maintaining low emissions and fuel consumption are needed.The focus of this project has been to develop strategies for the lift profiles of exhaust and intake valves in the engine, with the goal to raise exhaust temperature in combination with low emissions and fuel consumption. The strategies have been tested in a single-cylinder research engine equipped with a hydraulic variable valve actuation system.

ALMI Business Partner operating in the years 2008-2010 a project called Vivan which is about innovations made by staff in the health care profession. The project Vivian is to bring new products to the market by establishing new companies. We have looked at why health care professionals to a lesser extent than other professionals choose to start businesses. Another question raised is why it is mostly men who have chosen to start their own business in the female-dominated health profession. Traditionally, men have as an advantage over women in the corporate market in Sweden.

VoIP-system inom fo?retag blir mer vanligt. Sa?kerheten bo?r da? beaktas fo?r att undvika hot som riskerar konfidentialitet, integritet och tillga?nglighet. Denna rapport visar resultat fra?n tva? olika VoIP-systems sa?kerhet med hja?lp av praktiska penetrationstestscenarion i labbmiljo?.

In the middle of Australia there is a city called Alice Springs. The city has one of the highest amounts of daily sunshine hours and sun irradiation in the world. The Australian Government runs a project called Solar Cities, and Alice Springs is one of the participators. The main part of the goal with the Solar Cities project is to increase the amount of electricity generated by solar power and by doing that lower the impact on the environment. This thesis examines the possibilities for construction of a large scale solar power plant in Alice Springs. This is done to determine the potential of creating a more sustainable energy system in the city.

Study: Degree project in teacher education, Advanced level, 15pUniversity of SkövdeTitle The Battle of the School ? The attempt of four organizations to influence the Swedish school and the good citizen.Number of pages: 43Author: Christoffer HärsjöTutor: Erik AnderssonDate: January 2009 Keywords: Democracy, organizations, school, influence, citizen This exam discusses the influence of four different organizations in the public school. The chosen organizations are the Confederation of Swedish Enterprise, LO, the Enforcement Authority and the political party Feminist Initiative. They all have different agendas about what they think the school should teach children. These agendas will be analyzed from the point of view of lobbying, corporatism, influencing of public opinion and the theory of curriculum, to find out what impact they have on the Swedish school system.

Systems development methods has always been an important part of the systems development process. It affects not only the product, but also the organization itself. Today more and more companies are abandoning the more rigid traditional methods for the more flexible agile ones. A transition like this is bound to affect the product and the organization, but in what ways? Is it a difficult transition to make, and how does it affect social environment and dynamics? Does it change how people communicate information to each other? This study was conducted at a local branch of a larger international IT-company.

Insufficient intake of vegetables is a reason for micronutrient deficiencies and malnutrition in developing countries. With urbanization, globalization and a growing world population it is of major importance to secure sufficient food supply for the world?s population. Part of the solution to increased food security among the world?s poor could be the introduction of vegetable home gardens, plots for small scale vegetable production which can provide households with sufficient vegetables as well as serve as an extra income source. The study Improving peri-urban home gardens aims at examining the existence of vegetable home gardens in the peri-urban areas of Hyderabad, India.

This paper investigates how students in the humanities in four universities in Sweden reflect on their education and the current view on the humanities as an education and a science. I want to investigate what impact the past few years public debate about the humanities have had on the students. What kind of beliefs and identities do the students of the humanities form and how do they discuss the universities, the choices they made in life and how do they feel about the future.This study is based on interviews with seventeen students in Sweden from four different universities. The research is also based upon a report that The Confederation of Swedish Enterprise (Svenskt Näringsliv) published in 2011 and the debate following that report. I have also made participant observations on the four universities to make a broader description for the reader.

Deep litter is a system for animals kept in separate stalls, loafing and bedding in wind shelters. The litter can consist of different bedding, like straw and peat. The system is allowed to build over and to ensure optimal proportions it is necessary to add new straw regularly and to have good conditions. Important conditions are aerobic state, humidity, amount of organic substance and acceptable temperatures in the litter. The micro organisms are depending on temperature for their living conditions and to get the bottom layer in the litter to start burning.

This study shows how to plan a pond with an ecosystem which although it will have turtles living in it will not need to be cared. I will also demonstrate how this pond would be designed to work in the natural landscape on Mallorca. The background to the study is that I am interested to investigate how plants that we in Sweden are using as indoor plants are growing in their natural landscape and how to build a land-scape with them. The study highlights different cleaning-systems that can be used to clean a pond in a natural way. A comparison will be made between the conditions of an exterminated turtle-species which will live in this environment and a species that is easier to care for.

In Sweden, the demand for bio energy has increased in recent years due to the current energy and climate debate. In 2008, the energy supply of Sweden was 612 TWh, biofuels accounted for 123 TWh of these. Stumps have been highlighted as a potential fuel in recent years and the Swedish Forest Agency expects a technically and biologically feasible potential of 20.7 TWh annually between 2010 and 2019. The idea of utilize stumps is not new. During the 19th century stumps were used for tar production and during the 70?s and 80?s attempts were made to use stumps in the pulp industry.