Firewalls protect network traffic and decide witch traffic to send further and witch traffic will be blocked. All this depends on the rules in the firewall. The firewall is installed between the internal network and the Internet. It is difficult to find a firewall that can protect us against different threats. Firewalls have both advantages and disadvantages and all this make them vulnerable.

Marknaden för mobila system har utvecklats enormt snabbt de senaste åren. Idag är det ett område med en allt större omsättning och det har vuxit fram som en helt ny gren inom Software Engineering. Utvecklare av mobila applikationer står ständigt inför en utmaning när det gäller att välja vilket mobilt system man ska satsa på när man utvecklar applikationer. Valet av system kan vara helt avgörande för om man hittar rätt målgrupp av konsumenter och därmed kan generera tillräckligt med omsättning för att driva lönsam utveckling av applikationer. Det räcker inte att enbart kolla på vilket system som har mest användare eller vilket system som genererar mest omsättning, utan man bör noggrant överväga de förhållande som gäller för just den applikation som ska utvecklas.

Den här uppsatsen behandlar den västerländska säkerhetsdiskursen. Syftet är att åskådliggöra den världsordning som skapas inom diskursen. Till grund för analysen ligger två säkerhetsstrategier: USA:s National Security Strategy och EU:s En Europeisk Säkerhetsstrategi.Diskursanalysen är vår metod och teori och det innebär att språket står i centrum för vår analys. Vi vill med uppsatsen lyfta fram hur diskursen konstruerar den sociala verkligheten och vilka konsekvenser det får.Vi koncentrerar oss på två områden som vi menar är centrala inom diskursen: Konstruerandet av sociala identiteter, ?de andra? och ?oss?, samt säkerhet och den ?säkerhetisering? som sker i diskursen.

Uppsatsens huvudsyfte är att undersöka om det finns en gemensam kultur bland företagarna på ett kontorshotell. Studien har ett socialpsykologiskt perspektiv där interaktionen mellan de olika aktörerna antas vara den viktigaste komponenten i uppkomsten av en kultur. De frågeställningar som studien avser att besvara handlar om interaktionen mellan aktörerna och på vilka olika sätt kulturen uttrycks. Den teoretiska referensramen utgörs framförallt av teorier kring organisationskultur. I första hand har Scheins tre kulturnivåer och Bangs fyra former av kulturuttryck legat till grund för kartläggningen av kulturens uttryckssätt.

This research paper is a thesaurus construction for the interdisciplinary subject of landscape planning. The personnel doing the indexing of documents at the Swedish University of Agricultural Sciences had earlier expressed a need for such a work within the fields of Landscape Architecture and Landscape Engineering. However our objective was not to create a complete thesaurus, but instead a basic construction which the personnel at the Agricultural University could expand upon. The actual construction is based upon ISO 2788-1986, Documentation Ð Guidelines for the establishment and development of monolingual thesauri, and Aitchison, Gilchrist and BawdenÕs Thesaurus Construction (1997). The line of enquiry taken has dealt with the problems relating to the collection, selection and control of indexing terms.

The management of information is one of the key aspects within a successful andefficient product development process, particularly regarding complex products.Scania CV AB is at the moment developing a new IT-system, OAS, which aims tomanage the company?s product data. With this as a background, the purpose of thismaster thesis is to identify the cross-functional user needs within Scania?s organizationconcerning product data and the management around it.To fulfill the purpose, an empirical study consisting of 40 personal interviews with 50representatives from different functions within Scania?s organization was carriedthrough. The empirical data was then analyzed focusing on identifying thecross-functional needs and issues.The study points out that there is a big potential regarding improvement among themanagement of product data.

The aim of this study was to investigate preschool teacher?s perceptions about the curriculum goal concerning simple chemical processes. The result was based on narratives received by a qualitative study and semi-structured interviews of six preschool teachers. The results of the study showed that preschool teachers perceive that they actually are working in a relatively small scale with simple chemical processes and they do not really know what simple chemical processes are, and do not feel very familiar with the subject. Water, dough, mud, paint and baking were the most common activities that were used when working towards the curricular goal. However, it was never explained to the children that it was simple chemical processes they were working with during the activities, neither was it discussed among colleagues because of the uncertainty about the concept.

Sten Jonsson wants to start a production of an advertising catalogue for small companies in Sweden. Acatalogue where the advertisingcost is so low that most of the companies can afford to participate. Thecompanies who will advertise should be manufacturing companies in trades of carpentry, sheet metalworkshops, forging workshops and engineering workshops.The catalogue will facilitate for the manufacturer to reach the costumer without any middleman.Without a middleman creates a possibility for an opinion about the product at the same time as theprice can be held low. A catalogue of this type would benefit the marketing of the companies at the sametime as it would generate an occasion for innovations.The possible target groups are property companies, construct companies and farmers.A market research has been carried out contained a postal interview and a phone interview. Themarket research carried out to get an understanding in what the companies think about the idea butalso to see if the companies are in interest of advertise in the catalogue.

Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.

The purpose of the survey was to find out how early childhood teachers work with the curriculum of I Ur och Skur with children between 1-3 years in the forest and how such educators are using the outdoor pedagogy in the forest environment in preschool.In order to answer the study's aim and objectives interviews were performed with six teachers in I Ur och Skur kindergartens.What emerged from this study is that forest excursions are a central part of the curriculum and is seen as their educational place. The teachers are working to create a feeling of security among the youngest children of enjoying the woods and also to raise an interest in the children. Natural materials are used during the forest stay and no other toys or materials.The results reveal that educators work to get the smallest children to use and develop their imagination at play and at the same time they are involved with the children in their discovery of the woods. With the smallest children in kindergarten it involves being on the level of children and as a teacher to have the flexibility to change the forest stay environment if needed..

Människan har genom sin industriella framfart bidragit till ökade nivåer av växthusgaser i atmosfären och på så sätt rubbat den balans av gaser som naturligt förekommer. En klimatutveckling med trender som tyder på en framtid med varmare klimat är en av konsekvenserna av den process vi i alldagligt tal benämner växthuseffekten.Ett varmare klimat förväntas medföra förändringar av en rad faktorer, där medelvattenståndet i världshaven är en. Med en geografisk lokalisering i direkt anknytning till kusten och en topografisk lokalisering på dryga 2.65 m över havet skulle Karlshamnsverket kunna vara i farozonen för de konsekvenser en höjning av intilliggande hav kan medföra. Karlshamnsverket är ett värmekraftverk som ägs och drivs av Karlshamn Kraft AB. Anläggningen ligger utanför Karlshamn, vid Blekinges kust, och redan idag råder viss problematik vid högvattenstånd.

Stockholm är en växande stad och för att bemöta det behov av bostäder som expansionen medför, krävs att befintliga fastigheter utvecklas och får nya, bättre anpassade ändamål. Det är framförallt viktigt att utveckla de fastigheter som är belägna i attraktiva områden med pågående stadsutveckling eller goda möjligheter för ny stadsutveckling.Denna rapport behandlar utvecklingen av Vandenbergh 9, ett kontorskomplex från tidigt 1970-tal till ett modernt bostadshus. Rapporten resulterar i förslagshandlingar över hur den invändiga gestaltningen kan komma att se ut. Förslaget följer alla de lagar, stadgar och rekommendationer som idag ställs för byggnation i Sverige.Detta resulterade i sex individuella plan, men för att främja hållbart och rationellt byggande har ett stort fokus lagts på modulbyggande. Rapporten redogör för hur en fastighet i en stor skala kan utvecklas och erhålla ett nytt syfte..

Can you ensure that your smoke detector will sense fire and sound the alarm in the middle of the night?In 80 percent of the cases where emergency pulls out, smoke detectors are missing where the fire occurred. In the year of 2009, 118 people in Sweden died in fires ? most of them would have survived if there had been a functioning smoke detector.Earlier development of smoke detectors has mainly been focusing on components that sense smoke and alert in case of fire. But in most cases the problem has not been whether the smoke detector was working or not as fully assembled, but rather that it was missing.

When building a house or similar the stress on the ground increases and deformations can arise. The deformations create a foundation that the building is not constructed for and damages on the building arise. The increased stress on the ground can be derived back to the building, but it is possible that the increased stress may well derive from different sources such as other buildings or trees.       The building is an older property, built in the late 19th century alternatively early 20th century, and is today used for rental housing and has suffered severe damages due to subsidence. The goal of the thesis is to find possible causes for these subsidences. The thesis was executed as a combination between literature- and casestudie. After careful studies it has been found that a probable cause for these subsidences is trees. Through field- and lab studies it has been found that the trees has effected the ground through there accumulation of water.

This report will try to evaluate the use of rented concrete casting moulds, which are used to build walls and system of joists. The evaluation is only examining the economical aspects.The cost of using concrete casting moulds is a big part of the total production expenses. Therefore it is important that the calculated price not exceeds the final costs of the casting moulds. The calculated price is the price used in the process of making an offer.The evaluation consists of a comparison of the calculated price and the final costs for three building projects. It also evaluates the exploitation of the concrete casting moulds for each project.The report is made by Sven Gynne and Anders Alexandersson at School of Engineering, Jonkoping University, in cooperation with PEAB Jonkoping.