Search results

The laccase producing fungus HC1 was isolated from a sample collected in the Bolivian Amazon region. Analysis of 5.8S and 28S rDNA, and internal transcribed spacer 1 and 2 sequences revealed that isolate HC1 belongs to genus Galerina. High production of laccase was achieved in basal salt medium supplemented with 30 g L-1 glucose, 10 g L-1 yeast extract and 0.01 g L-1 copper sulphate. The enzyme pr

Background: Microbial production of propionic acid (PA) from renewable resources is limited by the slow growth of the producer bacteria and product-mediated inhibition. The present study evaluates high cell density continuous PA fermentation from glycerol (Gly) using Acidipropionibacterium acidipropionici DSM 4900 in a membrane-based cell recycling system. A ceramic tubular membrane filter of 0.22

Dagens Nyheter etablerade under våren 2022 lokala redaktioner i Luleå och Umeå med syftet att förmedla nyhetshändelser från Norrland till en rikspublik. Sedan uppstarten i mars 2022 till tidpunkten för genomförandet av denna studie har runt 180 artiklar producerats av redaktionens reportrar. Syftet med studien är att undersöka hur Norrland representeras och gestaltas i Dagens Nyheter och ifall etaDuring the spring of 2022, the Stockholm-based newspaper Dagens Nyheter established two newsrooms in the cities Luleå and Umeå located in the north of Sweden. The purpose was to communicate news events from Norrland to a national audience. From the start of the newsrooms until the time of this study, around 180 articles were published. The aim of this study is to investigate how the region of Nor

Solcellsparker blir både allt vanligare och allt större. I denna studie undersöks hur storleken och antalet transformatorer i en solcellspark påverkar dennas förmåga att leverera el. De rådande klimatförändringarna är en av de största utmaningar mänskligheten ställts inför. Fossil elproduktion är en stor bidragande faktor till utsläpp av växthusgaser globalt. Solceller ser ut att spela en avgöranThe main focus of this thesis has been to examine and compare how the size and number of internal power transformers affects the technical performance (robustness, power quality and efficiency) of a utility-scale PV plant. The technical performance was examined in a simulation environment (MATLAB Simulink), where a PV plant with a fixed number of PV arrays and converters, corresponding to a rated

This thesis investigates the effects of monetary policy on investments by venture capital firms. Modeling central banks’ interest rates and various macroeconomic variables on venture capital investments, we find a statistically significant relationship whereby expansive monetary policy is correlated with more investment in startups by venture capital. The panel data models use data from 2000 to 20

This master's thesis explores how organisations manage and measure performance through performance measurement systems. Though as performance management systems often relies on ad-hoc, informal methods, leading to inconsistencies and misalignment with organizational objectives. This study advocates for a systematic approach to performance management system implementation, aligning it with orga

This thesis in collaboration with ESS proposes a workflow for developing, deploying, and integrating machine learning models into the control system. Machine learning offers a promising potential for control systems but often introduces technical debt, with the actual model code representing only a small fraction of the total code base. To address this a data-centric process is proposed for retrie

This thesis experiments with the data structure of a sparse voxel octree (SVO)to see if it may improve the performance of empty space ray marching in volumes. While ray marching is a somewhat new technique it is used more often in traversal of volumes. It can be used for realistic volumetric effects in computer games or it can be used in the medical field when examining and visualizing MRI scans.

Syfte: Uppsatsen syfte är att utöka förståelsen kring huruvida fakulteter vid ett universitet arbetar med sin märkesidentitet med hjälp av internal branding för att differentierar sig i en värld där konkurrensen hårdnar och ackrediteringar riskerar att likforma fakulteterna. Metod: En kvalitativ studie har genomförts med ett hermeneutistiskt fenomenologiskt förhållningssätt. Den analys och slutsaPurpose: The purpose of this thesis is to bring awareness whether the faculties at the universities is working with its brand identity by using internal branding in order to differentiate themselves, in a world where competition is intensifying and where accreditations threaten to uniform the faculties. Methodology: A qualitative study has been conducted with a hermeneutic phenomenological approa

This paper takes off in the rapidly growing fields of financial independence and financial literacy. We develop a model focusing on reaching financial independence during retirement and mitigate financial decision making for financially illiterate. The model is based on theoretical research within financial literacy, economic life-cycle and safe withdrawal rates. To ensure qualified monthly saving

Det nya direktivet om offentlig upphandling, Europaparlamentets och rådets direktiv 2014/24/EU, ska implementeras i svensk rätt senast år 2016. Denna uppsats behandlar det nya direktivets betydelse för möjligheterna att ställa krav på sociala hänsyn. Det innefattar även den utveckling som har skett på området sociala hänsyn i övrigt. Direktivet innebär inga större förändringar avseende sociala häThe new directive on public procurement, the European Parliament and Council Directive 2014/24/EU, is to be implemented in Swedish law by the year 2016. This paper discusses the new directive’s significance for opportunities to make demands on social considerations. It also includes the development that has taken place in the area of social considerations in general. The directive involves no maj

The frequent restocking of stores and constant promotional offers associated with fast fashion presents the physical cues for consumers to engage in fashion-oriented impulse buying. This consumption behaviour has led to over consumption and the underutilization of clothes, adding to the problems of textile waste all over the world. Despite the increasing interest in consumers’ disposition behaviou

Denna uppsats syftar till att utvärdera ett förslag till ett integritetsdesignmönster. Utvärde-ringen sker genom att samla in litteratur som rör integritetsfrågor och fenomen för att se vilka faktorer som är relevanta att ta i beaktande för vårt mönster. Den empiriska delen av uppsat-sen består sedan av utvärderingar från personer som har en expertis i integritetsfrågor. I mötet mellan litterature

Efforts to reform the public sectors of Zambia have been ongoing since the 1990s with objectives to ensure efficient and high-quality provision of public goods and services to all citizens and battling persistently high levels of poverty. Outcomes have however been mixed at best. This study assesses how reforms to the public sectors of Zambia have been framed in terms of what problem representati

Vindkraftverk är ett av samhällets främsta verktyg för en miljövänlig energiproduktion. Den konventionella designen av bladen är emellertid i stort sett oförändrad. Triblade är ny typ av design som har potentialen att revolutionera marknaden. Genom att använda en fackverksstruktur öppnar man för möjligheten att utforska andra materialval än de konventionella kol- och glasfibermaterial som anväIn the 21st century, wind power has emerged as a strong candidate in fulfilling societies goals of achieving carbon-free energy energy production. Windpower has evolved along with other technological developments, giving rise to larger turbines, but with the overall design trend remaining largely unchanged. Winfoor, a Swedish company based in Lund,aims to break that trend. With their new Triblade

EU är ett komplext och unikt politiskt samarbete som sedan sin expansion i och med Maastrichtfördraget 1992 har kommit att omfatta flera nya kompetensområden, såsom sociala, rättsliga och säkerhetspolitiska frågor, från att tidigare huvudsakligen ha hanterat ekonomiska frågor. Samarbetet innebär nu hantering av frågor av olika grad av känslighet för medlemsländerna. Vår undersökning ämnar till at

This thesis deals with the matter of competitive balance in European club football. Its starting point is UEFA’s new set of regulations known as Financial Fair Play. These new rules officially started to be active for the season 2013-2014. The ground rule for FFP as I will call it further on, is the so-called “break-even” criterion, and cancels the possibility for clubs to make losses at the end o

Galiellalactone (GL) is a fungal metabolite that presents antitumor activities on prostate cancer in vitro and in vivo. In this study we show that GL induced cell cycle arrest in G2/M phase, caspase-dependent apoptosis and also affected the microtubule organization and migration ability in DU145 cells. GL did not induce double strand DNA break but activated the ATR and ATM-mediated DNA damage resp