The mouse (Mus musculus) is the most commonly used mammal in biomedical research and can easily be restrained by both hand and by a device. Restraining animals causes stress that not only decreases the animal?s wellbeing, but may also influence the research results. The first aim of this study was to train mice to voluntarily stand still using positive reinforcement training. Another benefit of teaching a mouse to stand still is that you can avoid anaesthesia for some procedures.

This thesis will address a problem concerning availability of information systems at an enterprise within the financial sector and its external suppliers, so called trusted third party. The information system resides on the internal network of the enterprise and must be available to both employees of the enterprise and the trusted third party simultaneously. This contradicts the company policy which disallows third parties access to the internal network. The HAVECA-model introduced in this thesis provides a framework of methods, each solving a sub problem identified in the model. The identified methods are hardening, verification, control and assurance, together supplying a method for continuously securing the internal network against a trusted third party.

Most of the portable electronic devices use a battery as a primary power source. Nowadays, when the applications are becoming smaller and smaller and more power efficient, the designer needs to concentrate more on reducing power consumption, using secondary power sources and introducing power storage devices. Multiple power source availability and a power storage device on the board will make the applications much more useful and efficient in everyday use. This thesis proposes a power supply unit (PSU) for wireless sensor platforms which is capable of supplying a sensor node with energy from multiple sources, as well as status information from the PSU. Present power storage devices, like electric double-layer capacitors (EDLCs) and batteries, have become more and more common as their characteristics have developed.

Today's climate and environmental issues have now been up for discussion for quite long. Various environmental measures have been taken, but it is not always certain that those measures actually are for the better because of the complexity of our environment. Therefore, studies of whole life cycles are very important even if they are time and resource intensive.Real estate accounts for 15% of global carbon emissions, but also affects our environment in many other aspects. In Sweden this number is even higher. About 30 % of its carbon dioxide emissions originates from building sector and changes are therefore of great importance.

We are getting smarter. Our knowledge of the world around us is increasing rapidly and our population spend a big portion of their time in school studying it. But art and craft are moving out to give room for more theoretical subjects. Today many of us can not even fix a torn shirt without help. We buy new ones, they are cheap enough.

Today's climate and environmental issues have now been up for discussion for quite long. Various environmental measures have been taken, but it is not always certain that those measures actually are for the better because of the complexity of our environment. Therefore, studies of whole life cycles are very important even if they are time and resource intensive.Real estate accounts for 15% of global carbon emissions, but also affects our environment in many other aspects. In Sweden this number is even higher. About 30 % of its carbon dioxide emissions originates from building sector and changes are therefore of great importance.

This thesis is the result of the investigation and solution of a mechanicalproblem regarding flywheel malfunctions. A flywheel is, in short, a devicethat relies on a rotating object?s moment of inertia to store energy overshort time spans. This project is part of the development of a fourthflywheel prototype at the division for electricity at Uppsala university,which uses magnetic levitation to keep a hollow cylinder rotating at veryhigh speeds inside a vacuum chamber. Should the magnets fail however, orsome other error occur that leads to an uncontrolled state of rotation, thecylinder needs to be stabilized mechanically by a device usually referredto as ?back-up bearing?.

Bachelor essay in political science by Andreas Byfeldt, autumn 2007?The practice of deliberative democracy- limitations or enhancements of representative democracy??Supervisor: Erik AmnåThe purpose of this study is to find out what impact the practice of deliberative democracy might have on a representative democracy. What effects deliberative democracy could have in this context are scientifically as well as publically relevant seeing that participation in representative democracies as well as the forms of representation is altering.The essay contains both a theoretical segment and a case study. The information regarding the case is based on the results from a questioner, conversations by and observations from the author. In addition an analysis is performed in the case study.The conclusion of the essay is that there is too little empirical research on the subject of deliberative democracy to make a qualified conclusion about what effects the practice of deliberative democracy could have on a representative democracy.

Bakgrund och problem; Den svenska staten har tidigare beslutat att de statliga företagen skall ligga i framkant och vara föredömen i allt sitt arbete. I arbetet mot en hållbar utveckling har inte detta varit fallet och det beslutades därför, år 2007, att från och med 2008 skulle alla de statliga företagen publicera en hållbarhetsredovisning. Då tre av de statliga företagen, Vattenfall, SAS och Green Cargo fått utmärkelser av FAR SRS för sina hållbarhetsredovisningar undrar vi om inte de statliga företagen i viss mån redan är föredömen och ställer oss därför frågan ?Varför regleras hållbarhetsredovisning för de statligt ägda företagen?Syfte; Syftet med denna uppsats är att får förståelse för beslutet. Genom att granska de belönade företagen, Vattenfall, SAS och Green Cargo, hoppas vi att kunna få detta.

The exclusion of visually impaired from the information flow presented to us through signs was what led me into this project. With a growing amount of information being presented to us on signs and digital information surface the need of communicating this information in a way that could be read by visually impaired is evident. Looking into different ways of communication, my goal was to create something that filled the need of the visually impaired without branding them as disabled. Having a close relative with bad eyesight is became evident on how much it limited her in her everyday life, not being able to navigate herself without the support of her husband. Through interviews with her and others with varying diagnoses I reached an insight in their situation. To my surprise they still favored a visual form of communication before an auditory or tactile form, because it?s easy to survey and quick to interpret.

I denna studie har fyra svenska storföretag studerats med avseende på hur de definierar begreppet hållbar utveckling, hur deras förhållningssätt är till hållbar utveckling samt hur de arbetar med socialt ansvar, även kallat samhällsansvar i ett vidare perspektiv. De intervjuade företagen är Volvo Lastvagnar, Skanska, Tetra Pak och Green Cargo. Studien är baserad på intervjuer via telefon med företagens miljöchefer, dessutom har företagens hållbarhetsredovisningar studerats. Studien belyser definitionen hållbar utveckling och pekar på att det finns många olika tolkningar av begreppet. Slutsatserna från intervjuerna och det studerade materialet är dock att företagen utgår från det grundläggande dokumentet från Brundtlandkommissionen.

Snabba leveranser har länge varit viktiga för företags logistikstruktur och skapat nyttaför verksamheten. Flygfrakt har i det avseendet varit ett fördelaktigt alternativ överlånga sträckor. På grund av höga kostnader i jämförelse med andra transportslag hargodset som fraktats ofta varit högvärdigt och volymerna små. Användningen avflygfrakt har haft en stabil långsiktig tillväxt men alltid varit beroende avmakroekonomiska trender som konjunktur och bränslepris. Konjunkturkänslighetenberor på de höga transportkostnaderna och företags vilja att minska dessa vid sämreekonomiska förutsättningar och bränslepriset har en betydande del av kostnaderna vidflygfrakt vilket gör att prisförändringar får stort utslag.Syftet med denna uppsats är att undersöka hur användningen av flygfrakt harförändrats historiskt, hur den ser ut idag och vilka trender, utöver ovan nämnda, sompåverkar den framtida utvecklingen av flygfrakt.

Today a lot of goods is transported on wood pallets because it?s practical and enabels a fast way to load cargo. The drawbacks with pallets are that they weight a lot, are big and are relatively expensive. Therefore IKEA has developed plastic lists that can replace the europallet in some applications. In this examwork an automatic handling equipment for plastic lists are design from a requirement specification to a finished machine.

As requested by the company Husqvarna AB, we have developed a prototype of an electrical start device to a chainsaw. This was done through the development of new details in Catia, which has been integrated with existing details. Electrical components have been purchased by HAB electronics. In parallel with the modeling calculations was done, which was the basis for determine dimensions and the choice of an electric motor and gears. Prototype 1 improved gradually and led to prototype number 2, which became the final result.

The exclusion of visually impaired from the information flow presented to us through signs was what led me into this project. With a growing amount of information being presented to us on signs and digital information surface the need of communicating this information in a way that could be read by visually impaired is evident. Looking into different ways of communication, my goal was to create something that filled the need of the visually impaired without branding them as disabled. Having a close relative with bad eyesight is became evident on how much it limited her in her everyday life, not being able to navigate herself without the support of her husband. Through interviews with her and others with varying diagnoses I reached an insight in their situation. To my surprise they still favored a visual form of communication before an auditory or tactile form, because it?s easy to survey and quick to interpret.