The usage of computers in classrooms is becoming increasingly common in the US. Digital devices are gaining more and more relevance for teachers and their students. This study uses the TIMSS 2015 data to examine the impact of using digital tools in classrooms. To capture these effects, we use a fixed effect model and exploit the variation between the subjects maths and science. While we find only

Freeze damage is a common issue in many food items. The cellular dehydration caused by freezing can be prevented through addition of a cryoprotectant. Research has shown that it is possible to improve the freezing tolerance of plant materials by addition of cryoprotectants, which forms hydrogen bonds with water molecules. However, the cryoprotect needs to be in the cell to function. Which is where

Cykeln som färdmedel är bra för miljön och ökar folkhälsan. I syfte att öka cyklandet har ett antal prioriterande insatsområden tagits fram av Trafikverket och Sveriges Kommuner och Regioner (Trafikverket, 2018). Bland dem finns säker infrastruktur och beteendepåverkande insatser. Genom att studera användningen av den befintliga cykelinfrastrukturen ämnar detta examensarbete att ta reda på om det When aiming for increased bicycle traffic there is a need to evaluate the current bike paths in use in order to improve infrastructure. Knowing how people behave in traffic is a key to successful planning. Cyclists don’t behave like car drivers, nor like pedestrians. The goal is to allow bicyclists to have a high speed without decreasing safety. That is why this thesis aims to study the speed beha

Varje år sker det tusentals olyckor i trafiken i Sverige till följd av det stora transportbehovet i samhället. Transportstyrelsen har ett mål, Nollvisionen, som innebär att ingen ska dödas eller skadas allvarligt i trafiken. För att nå målet är en åtgärd att hastigheten sänks där gång- och cykeltrafik behöver interagera med motorfordon. Det kan man göra i form av sidoförskjutningar, avsmalning av Every year, thousands of traffic accidents occur in Sweden as a result of the transportation need in society. The Swedish Transport Agency has a goal, Vision Zero, which means that no one should die or be severely injured in traffic. To reach the goal one measure is to reduce the speed where pedestrians and cyclists need to interact with motor vehicles. This can be done by chicanes, narrowing of t

Snö. Vid en första anblick upplevs ett snötäckt landskap som kallt, livlöst och förödande. Varje år förbereder sig landskapet för vintern genom att tappa löv, gå i ide eller förflytta sig söderut. Tyvärr är det dock få som vet hur viktig snön är för vår existens. En snörik eller en torr vinter formar sommaren. Snötäcket hjälper till att bevara fukten i jorden och kan förebygga de kraftiga skogsbräSnow. At first sight a snow-covered landscape is considered cold, lifeless and destructive. Each year the landscape prepares for the winter by losing its leaves, going into hibernating or moving to a warmer climate. Snow is far from being just a lifeless white powder covering the ground. Unfortunately, only a few people know how important snow is for our existence. The previous winter season molds

The world’s population is increasing every year and the need for housing to keep up with the demand is evident. The building industry as a whole, including the discipline of fire protection are responsible to supply the housing. To achieve this, the industry must look for more effective ways to design and build, and the use of BIM could be useful to make necessary improvements in the industry. T

At the turn of the century the Commission announced its intention to introduce a ‘more economic approach’ to EU competition law. Beyond incorporating modern economic theory into its enforcement practices, such a modernised approach to competition law was also to entail bringing the Union’s competition policy objectives in line with such modern economic theory. In particular, as expressed by Mario

Vinklas information på olika sätt beroende på om den kommer från företagets egen PR-avdelning eller från journalister från en dagstidning. Med hjälp av Media Framing theory och Agenda Setting theory har detta undersökts och det tyder på att det förekommer vinklingar.

Bushfires in Australia have long been rhetorically painted in dark overtones, representing nature’s onslaught on the human realm. Yet they are a phenomenon juxtaposing both darkness and light – chiaroscuro; using the unprecedented 2019/20 bushfire season as a case study, this thesis demonstrates how exploring the political ecology of disaster can open windows into the nature of our world extending

Streptococcus pyogenes covered by a human plasma protein shell Streptococcus pyogenes is a bacterium found mainly on human skin. It can cause a number of diseases ranging from uncritical to life threatening sepsis by entering the bloodstream. Infections such as sepsis can have high mortality rates, making it essential to identify how this bacterium causes infections. It is equally important to de

Current land use change and habitat fragmentation have caused severe decline in bumble bee populations. In order to address this issue and plan future conservation measures and strategies for plant pollinator networks, it is important to understand their foraging behaviour. A few studies in the past have tried to understand foraging constancy in bumble bees. However, there is no clear information

Marginalized communities in Southern contexts are among those most vulnerable to the effects of our drastically changing climate and environmental systems. Therefore, pathways leading to the transformation of our unsustainable systems, structures, and behaviors affecting these communities must be explored. To achieve transformation, some researchers argue that social learning is one such pathway.

Sustainable development at the local level is greatly impacted by policymaking. In China’s Jingmai Mountain region, the sustainable development policies are centred mostly around the tea industry, due to the social and environmental dynamics surrounding tea in that region. However, considering the complex interlinkages between the tea industry and local environment and society, the policies concer

Sättet som världen presenterar sig för våra sinnesorgan är genom en kontinuerlig ström av information, men vår upplevelse av den är uppdelad i diskreta händelser. Enligt eventsegmenteringsteorin är den här segmenteringen en inbyggd och automatisk del av mänsklig kognition. Omfattande forskning ger inte bara stöd åt den här teorin utan tyder också på att sättet vi delar upp händelser påverkar vårt The world presents itself to our sense organs as a continuous stream of input, yet we appear to conceive experiences in terms of discrete events. According to event segmentation theory, this segmentation is an intrinsic and automatic component of human cognition. A considerable body of research provides evidence for this claim and suggests further that the way we segment events has consequences fo

I grew up in the small town of Diö where a factory called Gemla Fabrikers AB has been located for the past hundred years. They are the only company in Sweden that creates bentwood furniture today. This personal connection, combined with my interest in furniture design and manufacturing, led me to pursue this project. After a study visit to the factory and meeting up with the factory manager, I se

Damage to DNA can cause death to an individual cell and serious harm to the host organism. Photosensitized reactions are one cause of DNA damage. It can lead to destructive chemical reactions targeted to a base of the DNA as well as a breakage along one or both of the DNA strands. Due to this, quantifying and understanding photosensitized driven DNA damage is an important topic of research. From

This report elaborates on the renovation of residential housing development from Danish modernism built between the 1930s and late 1950s. The period represents a significant moment in the history of Danish architecture. Modernist ideas gained ground in the housing sector and secured attractive and healthy living conditions for Danish working- and middle-class people. The most renowned architects w

I den här uppsatsen undersöks debatten om 2018 och 2019 års Nobelpris i litteratur, med syftet att skapa en uppfattning om synen på Nobelprisets värde och dess ställning i prisekonomin. Undersökningen genomförs med ett kvalitativt angreppssätt och dess material består av 42 artiklar från fyra svenska dagstidningar och två svenska branschtidningar. Materialet analyseras med utgångspunkt i James F.