Fruit flies (Tephritidae) are serious pests that cause enormous losses for farmers in many countries. The frequent use of insecticides in controlling fruit flies in fruits and vegetable has not resulted in sustainable management of the pest. Problems associated with this complete reliance on chemical control are many residues of insecticides in crops, health problems for farmers, contamination of water and soil, insecticide resistance development and decrease in natural enemy populations. The implementation of control measures that do not imply an added burden to the environment and/or the farmers is urgent. More knowledge about the ecology of fruit flies is the basis for finding new and better ways to control this pest.

Library architecture today is a complicated history. Public libraries are no longer merely a place for book storage, but also a virtual library a social meeting place and a place for study. All these diverse tasks and roles emerge in the democratic designing process of a new library and also transform into the architecture. The underlying process is the evaluation and negotiation of the libraries overall tasks and ideas, ideals and values. Multiple ideologies are incorporated in library architecture.

I denna uppsats underso?ker vi hur principer fo?r spelmekanik pa?verkar anva?ndares bena?genhet att bidra med inneha?ll pa? interaktiva webbplatser. Genom en empirisk studie av kvalitativ art ja?mfo?r vi tva? versioner av en testsajt, med spelmekanik implementerat i den ena versionen. Vi kommer fram till att spelmekanik fo?r att motivera anva?ndare att skapa inneha?ll kan designas utefter tre huvudsakliga delar; regler/struktur, ma?l och delma?l samt vinster. Regler och struktur a?r vad som a?r mo?jligt eller tilla?tet att producera samt kvalitetskrav pa? inneha?llet.

In my study I have participated at the Fifth Dimension / Active Worlds site in Villa Gymnastiken in Ronneby, where I have worked both as an assistant to the project leader and as a researcher, but also as a participant together with the children. The children are working in a virtual world called Femtedim, created in a internet-based program named Active Worlds Education Universe. The Femtedim-world are bridging together two physical worlds in Ronneby and Copenhagen. My main focus is on an intervention that occurred in the 12th of March when the research-team in Copenhagen, which runs the project in Denmark, decided to create a new challenge for the children since some of them started to get bored. They added gravitation to the Femtedim-world, which lead to a few different reactions among the children. Most of the children didn´t like it and were very hostile towards the idea that they would not be able to fly around freely in the Femtedim-world.

Society today is characterized by the transforming effect IT has had, the majority of the activities we perform on a daily basis involves one way or another digital technology. One area which has not yet seen the positive effects of IT is education. Despite the progress of technology, the school education has barely changed since it first saw the light of day. Our goal with this study is to investigate the possibility of implementing Gamification elements in educational environments and examine whether it could increase our young students learning motivation. We believe that this kind of implementation will have a positive effect for these young people since they have been interacting with games since they were small and are familiar with the driving force of a reward system.With this study we want to examine the opportunities and challenges that Gamification implementation brings out in a learning environment and therefore encourage and motivate our young ones to study even harder..

With a new digital world that runs parallel with our physical one, we are also facing a new type of architecture and new materials that this new architecture is built on. In this thesis I examine pixels and vectors, two of the digital materials used to create pictures. By approaching them as digital materials, I have mapped their different qualities, when and where one or the other is more or less applicable and the reason behind it. My main research question asked was the following: Are the (digital) materials challenged outside their primary fields of application, and in that case, in which way? With this question in mind, I carried out a semiotic picture analysis on four pictures, later on dividing them into four different categories, based on their different qualities and their ability to deliver information.

Quadrotor UAVs are self-stabilizing, autonomous flying machines that has recently become more popular than ever. Unmanned Aerial Vehicles have their roots in the military, where they were developed for use in reconnaissance and combat. During the last few years, advances in the fields of electronic sensors, electric motors and microcontrollers have enabled smaller designs and autonomic flight control even for private use. The quadrotor, which is the particular kind of UAV we are looking closer at in this paper, has 4 rotors in an X-like formation. This configuration has many advantages such as good lift capacity, non-complex mechanical structure and serviceability.In this project we aquired a current overview of the domain and determine whether it is possible to construct a quadrotor UAV designed for use in a WISENET sensor network on a low budget and short time schedule.Based on existing community project AeroQuad, a quadrotor is constructed with a budget of about 500 euro.

In industry applications, such as power supply plants, the issue of interaction between fluid and structure is always presented. More precisely, the fluid flow affects the structure by applying force(s) on it and vice versa. As a result, the structure can move (vibrate) or deform. A good understanding of this problem can help to design the system in term of safety, stability and efficiency.This project aims to optimize and test the Unicorn FSI solver from the FEniCS project [1] to simulate the interaction of fluid and structure in an experiment, which was carried out at Vattenfall Research and Development. The target is to improve the Unicorn FSI solver to cope with a real industrial problem.

This study analyzes how the Swedish climate policy has changed during the years 1990-2008. Thisis done through a comparative analysis of three climate bills that were developed during this period.With a constructivist approach, and theories about discursive indicators and discursive fields,discursive changes in the bills' content are identified. The results show that changes have occurredin how the problem is described, how the issue is framed, which problem solutions that areadvocated, which legitimizing arguments and key concepts that are used and the extent of theknowledge that the bills are based upon. The conclusions drawn from the results describe adiscursive change between the bills in the form of a shift from a discourse that in a greater extentadvocates active policy responses, based on ethical arguments about fairness towards othercountries and caution towards the environment, to a discourse that more often favor market actionsbased on arguments about the economic viability of Sweden..

Avatarer är vanligt förekommande i datorspel och används för nöjes skull men avatarer används även i seriösa spel. Rapporten undersöker hur en persons självkänsla och body image kan stärkas med hjälp av en avatar och vilka egenskaper avataren behöver ha. Undersökningen genomförs som en litteraturstudie. Slutsatsen är att det troligen går att skapa en avatar för detta ändamål, men att det är många aspekter att ta hänsyn till och att det inte är helt självklart vilka val som behöver göras. Viktigt verkar dock att användaren själv får välja sin avatar, att till exempel typen av klädsel påverkar liksom avatarens längd.

The purpose of this study is to extend the understanding of how professionals in modern organisations want to be managed. We especially investigate professionals changing industries to describe if, and how, aprofessional in this situation is becoming a professional again after the change. This to find connections between intrinsic motivation and attitudes towards professionalism on one side, and applicable managerial methodson the other. Best practice in managing professionals is traditionally considered to be non-invasive methodologies such as indoctrination and training. Beyond that, operational-level management is usually considered to be bound to fail.The analysis suggests the following:? A professional changing industry will become professional again.? The driving force for becoming professional again is the strive for horisontal specialization, induced by higher education.? Management of professionals needs to account for the integrity of the horizontal specialization of the professional.

The network with its virtual business structure challenge the established vertical business structure. Part of the network theory that has developed focuses on relationships that forms B2Bnetworks. One way to create a B2B-network is for independent businesses to form a organization promoting co-operation. For co-operation to be successful it requires well thought-out actions, but a lack of how these actions are implemented have been noticed. This study explores how encouragement of co-operation can be done practically.

We got in contact with Marco AB, who we?ve had contact with before concerning earlier projects, to find out if they were interested in arranging a larger project for our last class (Examensarbete 15hp). They were very positive to this proposition, and soon they offered us a project regarding reconstruction of their current mechanical device that absorbs all the force from the lift itself when it is at a predefined level (sv. sjunkspärr). The current solution does fulfill the requirements that are given, however it is not a solution that gives a high level of satisfactory.

The student project Elba at KTH started in 2011 and is a project where a battery driven prototype car is developed. The vehicle competes in Eco Shell Marathon in Rotterdam, Holland. In this competition the vehicle that travels a certain distance including several starts and stops with the lowest energy consumption wins. To minimize the consumption is therefore very important, which requires knowledge of the vehicles energy losses.A vehicle's energy losses depends on several factors and can be divided into the powertrain efficiency and the driving resistance. The driving resistance can then be divided in to rolling and air resistance, if smaller losses like vibrations are ignored.

In this thesis I discuss and analyse the relationship between USA and Europe since the end of the Cold War. Many authors claimed that the Soviet threat was the glue that kept the continents together. Now that threat is gone and new challenges have risen. In what way has this relationship been influenced by the new challenges this new era stands for? By doing a case study and by using two quite different theorists, John Mearsheimer an offensive realist and Joseph Nye who is a liberal institutionalist, I?ll try to show how for example September 11, anti-amerikanism and NATO can be explained and understood.