The greater wax moth, Galleria mellonella, is a serious pest of honey bees, Apis mellifera, damaging the quality of honey produced and creating a problem for bee industry. Mating behaviour in this species takes place with the help of a male-released pheromone tracked by females over long distances. Previously, the male pheromone was identified to be a blend of nonanal and undecanal but this aldehy

The easy way to find out whether or not there is a certain Swedish archival collection preserved in any archival institution, is to make a quick search in a free and public reference database named Nationell arkivdatabas (National Archival Database), NAD, preferably if you don’t have any clear geographical area to narrow the research. But if there isn’t any relevant result to retrieve in NAD, what

Syftet med studien var att undersöka individers attityder till internetdejting, om internetdejting utgör ett alternativ i sökandet av partners för seriösa förhållanden och kortvariga sexuella relationer samt om det kan finnas skillnader i vem, utifrån personlighetstyp som använder eller inte använder dejtingsidor och/eller dejtingappar. Hypoteserna var att det skulle finnas positiva samband mellanThis study examined people’s attitudes to online dating, if online dating is an alternative when searching for a partner and for a short-term sexual relationship and if there is a differences in who uses online dating sites and/or dating-apps, based on personality. The hypothesis was that there would be a positive correlation between; the use of dating sites and the intention to find someone for a

This study concerns two photorealistic oil paintings by Ola Billgren: Venetian Blind, 1965 and Interior, 1971-1972. These paintings are from his neorealist period and are representative for Billgren’s style in the 1960s and early1970s. There is a subtle underlying feeling of anxiety imbedded in these two paintings. A sense of distance is also present. The purpose of this thesis is to investigate h

This thesis studies if and when the size of the financial sectors starts to have a negative effect on economic growth. The size of the financial sector is modelled using employment in the sector. The study uses a panel data model with the EU15 countries covering the years from 1970 to 2007 (1985 to 2005 for some regressions). The results show that the positive contribution to growth of labour and

The Tomten-1 drilling at Torbjörntorp in Västergötland, southern Sweden, penetrated 29.85 m of Cambrian Series 2 and 3, Furongian, and Lower and Middle Ordovician strata. The biostratigraphy, sedimentology and carbon isotope (δ13Corg) stratigraphy of the core have been analysed. The succession is interrupted by numerous stratigraphic gaps (i.e. hiatuses) of variable magnitudes. There also appear t

This study investigated how a set-size manipulation (as published in Fitzgibbon, Cragg & Carroll, 2014) could affect switch-cost in a switching-task, and the relation to working memory capacity. A student sample of 29 participants was recruited. Results revealed that decreasing the set-size might facilitate switching. Working memory capacity was negatively correlated with repeating a task (i.

The aim of this interdisciplinary study is to consider how teachers of English as a second language (ESL) might engage with critical pedagogy through the use of literature. This is illustrated by, on the one hand, applying a Black feminist lens to Octavia E. Butler’s 1979 science fiction novel Kindred, which is argued to constitute an appropriate novel for upper secondary students to read. On the

This study examines the interaction of exchange rates between the Asian developed economies: Japan and Singapore and emerging economies: China, India, Malaysia, Sri Lanka and Thailand over the period January 1, 2006 to December 31, 2014. The volatility spillover is modeled through a GARCH-BEKK model. Significant results are found for unidirectional spillover from Japan and Singapore to emerging ec

This thesis aims to present different ways of handling the vibrations for large displacement single cylinder engines (test beds). These test beds are used for development purposes at Scania. The imbalances causing the vibrations are discretized which are then suppressed using counter weights and carefully designed balance shafts. It is found that with some unconventional designs, balance shafts ca

The latest standard within video compression, HEVC/H.265, was released during 2013 and provides a significant improvement from its predecessor AVC/H.264. However, with a constantly increasing demand for high denition video and streaming of large video files, there are still improvements that can be done. Difficult content in video sequences, for example smoke, leaves and water that moves irregular

The HIE-ISOLDE post accelerator at CERN has recently come online, en- abling the use of radioactive ion beams with energies of up to 10 MeV/u. An active target gaseous detector is under development for use in some of the experiments. The first investigation of the electron amplification stage with gas electron multipliers has been performed. To this end, a small prototype GEM detector was built an

Vi har i denna uppsats intervjuat ungdomar som genomgått anknytningsbaserad familjeterapi om deras upplevelse av terapin efter avslutad behandling. Uppsatsen syftar till att diskutera och skapa en fördjupad förståelse för ungdomarnas upplevelse av behandlingen. Uppsatsen utgår ifrån en fenomenologisk, hermeneutisk metodik. Vi har frågat ungdomarna om upplevelsen före, under och efter terapin och bIn this thesis we have made interviews with young people who have completed attachment based family therapy about their experience of the treatment. The thesis aims to discuss and create a deeper understanding of what young people describe as their experience of the therapy. The paper is based on phenomenological, hermeneutic methodology. We asked the young people about their experience before, un

Every summer the Australian Bogong moth migrates from southern Queensland to the Australian Alps in southern New South Wales. Other migrants such as the monarch butterfly use a time-compensated sun compass. However, the Bogong is nocturnal and only has access to skylight cues such as the moon, polarized light or the Milky Way. Since these are considerably unreliable only being visible short period

With global warming and increased uncertainty about future vehicle fuel supply, the need for fuel efficient vehicles is growing. In this Master Thesis, design and implementation of a control strategy for fuel efficient deceleration is presented. The resulting deceleration controller, implemented in Embedded Matlab and Simulink, provides autonomous deceleration functionality to a vehicle cruise con

Measurements of a room have been done at the institution Byggnadskonstruktionslära, and I would like to thank the institution and especially Kurt Källblad for the help. Measurements have been done at three different warming types, radiant-, convective- and radiator warming. I have two inputs. One is the temperature of the heating apparatus, and the other one the outdoor temperature. The output i