1,456 research outputs found

    Mutating loops and 2-cycles in 2-CY triangulated categories

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    We derive an algorithm for mutating quivers of 2-CY tilted algebras that have loops and 2-cycles, under certain specific conditions. Further, we give the classification of the 2-CY tilted algebras coming from standard algebraic 2-CY triangulated categories with a finite number of indecomposables. These form a class of algebras that satisfy the setup for our mutation algorithm

    Intercultural issues in the Norwegian journalism curriculum

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    This study looks into Norwegian journalism curricula and how and to what degree they focus on intercultural issues. The web pages to six different schools are analyzed to see how the objectives are formulated, and how the curricula are composed. The six schools are Oslo University College, Volda University  College, Bodø University College, University of Stavanger, Gimlekollen Schoolof Journalism and Communication and University of Bergen. The findings suggest that the schools emphasize educating for practical journalistic skills on behalf of in-depth analysis of contemporary society. Oslo University College and Gimlekollen School of Journalism and Communication focus on intercultural communication and global issues to a larger extent than the others. Based on the results, the study discussed some perspectives that might be needed to equip Norwegian future journalists for a global reality, where there are no longer given and fixed skills for a journalist. Keywords: journalism education, curriculum, intercultural, global, ethnicity,Norway. /p

    Developing a Local-First Application with Automerge

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    In modern time, cloud services have been the go-to approach to store information and documents, and cloud makes documents accessible for users and make it easier to manage items. Cloud is an excellent option to have when data need to be available, but what if collaboration is only needed a few times a week? Once a month? Or unstable connection leading to disconnection to the network? A solution is a Local-first approach. This means all items and documents a user has created is store locally on the device it is created on and provide a feeling of ownership to what is created. Local documents are treated as primary copies, and potential backups stored in an external cloud own by big companies are secondary copies. Different communication technologies are explored, tested, and evaluated in this thesis in combination with a Local-fist approach and Automerge. A prototype is developed to connect all these ideas and concepts and to better understand which technologies do fit together and provide the necessary features to achieve a Local-first application for collaboration between computers and mobile

    Exploring evapotranspiration as part of H2O-project: Model calibration and data evaluation

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    The atmosphere’s mass is about 5.1480 × 1018 kg where water vapor amounts to about 0.25 %. This tiny fraction of water vapor is a key greenhouse gas, and is essential in the hydrological, meteorological and biological processes. An important component in the land-atmosphere domain is evapotranspiration (evaporation and transpiration together). For about 75 years, studies have been conducted to give good predictive evapotranspiration models. However, results show that different models yield different accuracy in their spatiotemporal application. As part of the Norwegian Meteorological Institute’s project; Hydrometeorology to Operations (H2O), this thesis will study evapotranspiration to evaluate evapotranspirational models, Priestley- Taylor and Penman-Monteith, and evaluate evapotranspirational data from remote sensing and pan evaporation. Five versions of the Priestley-Taylor (PT) model were evaluated, of which four were hourly-based. One of the models used the standard α of 1.29. One model was based on the approach from Cristea et al. (2013) to calculate α. The two other hourly-based models required programming with curve- fitting, where one used curve-fitting to calculate α and γ, while the other one used curve-fitting for α only. The fifth PT model was daily-based with an α value calculated by curve-fitting. The best PT model had α values between 0.2755 and 0.3789 with an RMSE compared to measurements of 0.0043. Four versions of the Penman-Monteith (PM) model were evaluated, of which two were daily-based and two were hourly-based. The first daily-based PM model calculated actual evapotranspiration directly and resulted in significant underestimations. The other PM models calculated reference evapotranspiration before being multiplied by a crop coefficient. The second daily-based and the first hourly-based PM models used a crop coefficient of 0.9, while the second hourly-based PM model used curve-fitting to calculate a suitable crop coefficient of 0.588. The best PM model was the hourly-based with the calibrated crop coefficient, resulting in an RMSE value of 0.0039. Remote sensing measurements were evaluated by comparing them to eddy-covariance measure- ments. The remote sensing measurements were about 30-40 % greater than the eddy-covariance measurements. It was however not found out if this is a systematic error or just a coincidence. Pan evaporation measurements were evaluated by converting them into estimates of actual evapo- transpiration and comparing them to eddy-covariance measurements. Crop coefficients of 0.9 and 0.588 were used in this conversion. It was found that on an hourly basis, the conversion using a crop coefficient of 0.588 yielded the most accurate result compared to eddy-covariance measurements. This thesis has proven that an hourly-based PM model with crop coefficient of 0.588 is more accurate than a PT model with α of between 0.2755 and 0.3789. It has also been proven that the literature-based PM model is more accurate than the literature-based PT model. The overall conclusion of all evaluations is that more extended time series’ are needed to reach a conclusive an- swer. However, the results seem promising as proof of concept that calibrating evapotranspirational models could yield valuable predictions, and that data from remote sensing and pan evaporation could be reliable

    Smoltification in Atlantic salmon (Salmo salar L.) exposed to dietary salt feed and photoperiod treatments

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    Postponed access: the file will be accessible after 2022-06-01Masteroppgave i biologiBIO399KMAMN-BI

    Boligprisvekst og markedsstruktur i Danmark og Norge

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    I denne studien ønsker vi å avdekke om de samme faktorene har drevet veksten i boligprisene i Danmark og Norge fra 1990 til 2006, og om disse faktorene har virket på samme måte i begge land. I de første kapitlene går vi grundig igjennom teori, tidligere studier av boligprisene i de to landene og forskjeller i markedsstruktur. Dette gjør vi for å identifisere sentrale forklaringsvariabler for boligprisene, samt grunner til å forvente at de virker forskjellig over landegrensene. Videre sammenligner vi resultatene i tidligere modeller for veksten i boligprisene i Danmark og Norge. Vi utarbeider så en empirisk modell for veksten i boligprisene, og estimerer denne simultant for begge land ved hjelp av 3SLS. Den estimerte modellen forklarer minst 60 prosent av veksten i prisene i begge land. Et hovedfunn er at endringer i bokostnaden, som blant annet omfatter renten, virker sterkere på kort sikt i Norge enn i Danmark. Dette er i tråd med forskjeller i gjeldssammensetningen i de to landene. Bortsett fra dette finner vi at de samme faktorene har drevet veksten i boligprisene i begge land, og at vi ikke kan si at de har virket på forskjellige måter. Vi finner imidlertid at fundamentale forhold som inntektsvekst og redusert bokostnad forklarer utviklingen i de norske boligprisene betydelig bedre enn i de danske

    Granbarkbillen. Registrering av bestandsstørrelsene i 2015

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    Etter flere år med nedgang i billefangstene viser både fjorårets og årets fellefangster økning. Økningen i 2015 kan ha sammenheng med mange overvintrende biller etter den varme og tørre sommeren i fjor. Økningen i 2015 kunne trolig har vært enda større om forsommeren ikke hadde vært så kjølig og ugunstig for billene flukt og formering. Størst økning ble funnet i Trøndelags-fylkene, og dette settes i sammenheng med at denne regionen ble rammet av stormfellinger av granskog. En kjølig forsommer kan ha vært årsaken til at oppformering av biller i vindfall ikke førte til omfattende angrep på stående skog i disse fylkene. Vest-Agder var inkludert i barkbilleovervåkingen for første gang i 2015. Fellefangstene i indre og østre deler av Vest-Agder tilsier at dette fylket bør være en permanent del av barkbille¬over¬våkingen. Stadig mer av plantet granskog i Vestlands-fylkene når mottakelig alder for granbarkbillen, og flere episoder av vindfellinger og tørkeskader i de siste årene tilsier at det bør undersøkes om granbarkbillen også forekommer i disse områdene
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