För att alla elever ska kunna uppnå scientific literacy bör man utgå från barnens erfarenheter där naturorienterade ämnen, NO, knyts till ett sammanhang ? en kontext. I kontexten synliggörs naturvetenskapens mänskliga sida, och därmed visa att NO är mer än fakta. Elever behöver lära om naturvetenskapen, vilket kallas nature of science, NOS. Vårt syfte är att ta reda på hur lärare aktualiserar nature of science genom ett Linné-tema.

The employer is obligated to call for negotiation on his own initiative, before he makes decisions in questions, which constitute important changes of the employer?s business or of the worker?s working conditions and terms of employment. The obligation to negotiate is reserved to the organisations, which the employer has collective agreements with. But what does the concept of important changes mean? What areas are included in the concept of important changes, according to legal framework and case law? How extensive is in fact the employer?s obligation to negotiate? The purpose of this report has been to seek answers to the above-mentioned questions, through partly describing how the employer?s obligation to negotiate has developed, and partly describing how the codes of negotiations in the Employment (Co-Determination in the Workplace) Act of 1976 are raised and applied.

Barn och ungdomar ägnar idag en betydande del av sin fritid till datoranvändning. I denna uppsats har vi valt att undersöka datoranvändningens eventuella effekter på ungdomarnas betyg i språk. Uppsatsens syfte är att undersöka om man kan se samband mellan, dvs. positiva eller negativa effekter på, betygen i engelska hos elever i år 9 och deras datoranvändning utanför skoltid. Utifrån detta har vi även undersökt vilken typ av datoranvändning som har dessa effekter, hur lång tid framför datorn som motsvarar dessa resultat, samt om det finns skillnader mellan flickors och pojkars datoranvändning och deras mätbara språkkunskaper.

Denna rapport jämför prestandan mellan state-of-the-art AI-botar i racing spelet TORCS och en AI-bot som kör med hjälp av ett artificiellt neuralt nätverk (ANN-bot). ANN-boten, som implementerades som en del av arbetet, använder en feedforward arkitektur och backpropagation för inlärning. Ett separat program som användes för att träna det neurala nätverket med träningdata som spelats in från TORCS implementerades också. Som state-of-the-art AI-botar användes AI-botar som har använts i en tävling. De fyra AI-botarna testades på åtta olika banor och data om hur lång tid varje varv tog och hur snabbt AI-botarna körde sparades och sammanställdes. Resultaten visar att på banorna som ANN-boten klarar av att köra runt så är ANN-boten snabbare än en den långsamaste state-of-the-art boten, men ANNboten klara inte av majoriteten av banorna som den testades på.

Objective: The aim of this study was to study the prevalence of depression among patients with arrhythmia, and to investigate if there was any gender difference in the study population regarding depression. Furthermore, differences considering depressive symptoms between patients with arrhythmia and the general population were to be investigated. Method: The self-rating scale MADRS-S was distributed during two weeks to 24 patients with arrhythmia. Twenty-one patients completed the study. Results: 28.5 % of the participants showed symptoms of some level of depression.

This study where designed to investigate if there are any positive relationship between the extent of physical activity during adolescent's leisure time and the academic performance, and also if there are any negative relationship between the academic performance and the time spent in front of the television or computers. Another part of the study tried to find out if physical activity has a direct and immediate influence on the performance in school. 91 pupils (51 girls and 40 boys) in the 8:th year of the Swedish primary school, from three different schools participated in the study. All 91 pupils first responded to a questionnaire concerning there activities in leisure time. They where then tested in a mathematical test and the results where compared with the extent of physical activity and TV/computer time they had stated in the questionnaire.

Science Fiction har sedan sin uppkomst gestaltat samhället och de samhällsfrågor som för sin tid är aktuella. Alltifrån ifall människans existens är kroppslig eller andlig, till vad som händer när livsformer från andra planeter kommer till Jorden, har diskuteras i Science Fiction. I tv-serien Battlestar Galactica gestaltas och problematiseras vår samtid. Genom att flytta mänskligheten från Jorden och ut i rymden, där de konfronteras med en mängd etiska och moraliska frågor ? tvingade att se över vad de själva är och vad de håller på att bli.

The purpose of this study was to investigate the reason behind thedecision by a company regarding the desire to use mobile access to theirERP-system and to discover whether this will involve any loss offunctionally in comparison to using the ERP-system on a computer atthe office. In addition, the pros and cons involved in using mobiledevices for accessing the ERP-system will also be examined. Semistructured telephone interviews were conducted with companies whicheither used or did not use mobile devices in relation to their work. Atelephone interview was also conducted with a consultant who isworking with the implementation of ERP-systems and mobile solutions.The survey showed that companies with staff working in the field assellers, service personnel and construction workers want to gain directaccess to their ERP-system so as to be able to act directly and takedecisions, to have the ability to provide more efficient order processingand to send out invoices more quickly. Those companies which have notopted to use mobile devices at work within this field are those whichare unsure of the connection to the Internet and the capacities availablewithin cellphones.

The aim of this thesis is to study different aspects of the public libraries' investment in public access computers connected to the Internet. What level of accessibility can be found at the surveyed libraries concerning the number of computers open to the public, as well as chat and email services? What activities have been taking place with the computers in focus, and what have the goals of these activities been? Is there any control of content, and what aspects of the Internet are, if that is the case, subject to censorship. And how do the governmental policies relate to the surveyed libraries' intentions and activities regarding the Internet? In order to answer these questions, each main library in the 42 largest towns of Sweden was surveyed response rate: 100 %.

Detta arbete är en magisteruppsats i Systemvetenskap med inriktning data och systemvetenskap, 10 poäng, vid Luleå Tekniska Universitet. Uppsatsen klargör vilka faktorer som avgör en användning eller icke-användning av Case-teknologin. Case-teknologin möjliggör ett ingenjörsmässigt närmande till mjukvaruproduktion och systemutveckling genom att tillföra nödvändig systematik, standardisering, automation och kvalitetssäkring. Ett stort antal undersökningar är gjorda genom årens lopp med syfte att förstå och förklara varför det som teoretiskt borde vara lösningen på problemet med undermåliga system inte tycks ha blivit detta. Resultatet av undersökningen tyder på att de variabler som Prekumar och Potter kom fram till i sin forskningsmodell ? relativa fördelar, kostnad, komplexitet, kompabilitet, produkt förespråkare, stöd från ledningen och operativ expertkunskap har störst påverkan på användningsbenägenheten av Case-teknologi..

What role should science play in democracy? Political scientists often assume that it is possible to demarcate between ?instrumental? and ?moral? knowledge, and argue that citizens and/or politicians should use their moral knowledge to agree upon political goals and then apply the instrumental knowledge of scientists to achieve them. This straightforward view is challenged by writers in science studies, who identify three major problems in the use of science in democracy: uncertainty, risk and hidden values. They suggest that these problems could be solved through citizen participation.In this essay I perform an analysis of the internal logic of their suggestion. Is it likely that citizen participation enhances the democratic decision making process so as to reduce the problems? The internal analysis shows that it is rational to advocate citizen participation by reasons of legitimacy.

The emphasize of this study is to evaluate security issues for home users having a personal computer connected to the Internet. It focus on the usage of advantages and disadvantages when using a firewall while connected to the Internet. The hypothesis is that it gives a better protection to install and use a firewall compared not to do so, due to security flaws in the operating system. The prediction was tested on a home user's personal computer. The testwork was divided into two major tests, each of them performed with, respectively without, a firewall.

ABSTRACT The main purpose of IT security policies is to protect companies against intrusion and unwanted spread of information. Statistics show that IT related crimes tend to increase and because of that it is important, from the company?s side of view, to be well prepared. The IT security policy is an important part of that preparation. A lot of the crimes related to IT can be deduced indirectly to employees at the companies where the crime takes place.

This thesis has been carried out in cooperation with Burseryds Bruk AB.Burseryds Bruk is a company that manufactures steel strapping. The thesis isabout developing a concept of protection that should be used to protect theoperators from the rotating parts of the machinery lines. The aim of the projectwas to improve work safety for operators working at the machines by producing aconcept for a protective device. The project's first part was based on ergonomic data collection methods tounderstand the operations performed on the machine and the hazard occurringduring the process. The methods used to collect data were, interviews,observations and questionnaires with the operators of the company. This was thenused to make the ergonomic analyzes hierarchical task analysis and link analysis. The data collected from the company's operators was used create 10 conceptswhich were then evaluated.

This thesis is a case study which describes the automation of a university library in Sub-Saharan Africa. The aim of the case study is, firstly; to find out which actors and factors have started and influenced the automation and the implementation of ICT at Makerere University Library in Kampala, Uganda. Secondly; it also discusses if the automation has changed the librarys condition. The empirical material consists of fifteen interviews with librarians and students. The empirical material itself has functioned as a base when discerning the analytical themes.