Svälter Kaliforniens humlor? Bin är viktiga pollinatörer, de hjälper växter att föröka sig inom både jordbruket och i naturen. Tyvärr minskar många bipopulationer i storlek, vilket kan innebära ett hot för matproduktion och naturliv. Jag vill med mitt arbete undersöka om en vanlig Kalifornisk humla är begränsad av tillgången på blommor som finns i landskapet kring deras kolonier, eftersom blommorGlobal pollinator populations are declining. One of the causes is land use change, which results in reduced flower resources in the landscape. Bumblebees have small stores of nectar and pollen and are therefore vulnerable to loss of flower resources. I test if forbs plantings, which enhance forage resources, can support colony development and reproductive success of bumblebee colonies in Californi

Längs Kaledonidernas östra erosionsfront finns den världskända bly- och zinkfyndigheten vid Laisvall (totalt 64 miljoner ton bruten malm) och mineraliseringen vid Granberget samt flertalet mindre malmkroppar av impregnationstyp bestående av blyglans och zinkblände som kristalliserat i klastiska bergarter. I äldre litteratur har mineraliseringsprocesserna och tidsspannet för mineralisationen diskutThe eastern Caledonian erosional front hosts the world-class Pb-Zn deposit at Laisvall (64 Mt mined) and Granberget mineralization, northern Sweden, along with several other smaller, related types of deposits consisting of impregnation mineralization of galena and sphalerite in clastic host rocks. Previous work have discussed the nature of the ore-forming processes and constraints for the timing o

Wind energy is one of the fastest growing renewable energies in Sweden. To support this growth, it is essential to give stakeholders, such as investors, municipalities and policy planers, access to high accuracy and high-resolution wind speed data. Essential components for an accurate wind energy potential prediction are the average long-term wind speed and the probability of occurrence of wind

Looking from a PR perspective, sport can be seen as a microcosm of social life, and be used to reveal underlying values as power relations in society. This qualitative case study concerned itself with the social identity construction of female athletes and the effect of social change on this identity, in order to analyse gender issues in society. While taking a constructionist approach, the theore

Trade and economic growth have boomed over the latest centuries, and trade has for long been seen as an engine of economic growth. Research over the years has been consistent of the fact that there is a relationship between the two but it has not been established how this relationship works. This study contributes to earlier research by examining whether it is beneficial for domestic economic grow

Habitatminskning är ett stort hot mot den biologiska mångfalden, som ofta orsakar sämre spridning mellan habitat. I och med att kunskapen om landskapssamband har växt, har GIS-verktyg för att rumsligt analysera landskapssamband för olika arter blivit allt vanligare. Idag finns flera programvaruverktyg, men få studier har jämfört deras skillnader och hur de kan användas inom naturvårdsplanering. I Habitat loss is a major threat to biodiversity, and often causes decreased connectivity between habitats. Geographical Information System (GIS) tools for spatially analysing landscape connectivity for different species have become increasingly common with the expansion of the field of landscape connectivity. Today several software tools are available, but few studies have compared their difference

The thesis examined typological similarities across the fifteen languages listed on the World Atlas of Language Structures (WALS) website as having object-initial constituent orders in transitive clauses. Based on previous work by Derbyshire (1981, 1987) and Andersen (1988), who have attempted to account for diachronic developments in Hixkaryana and Päri respectively, a matrix was created to check

Social media plays an increasingly important role in organizational communication and stakeholder relationship management. The last few years has seen a growing number of studies examining how big organizations utilize social media channels for stakeholder relationship cultivation. However, research so far has overlooked startup companies, which are new players in the market and have the most to g

Solzhenitsyn was a famous nationalist who clearly stated his stance in non-fiction literature. In this study his stance will be further investigated by searching for expression of nationalism in three of his earliest fiction. The three works are the two short stories One Day in the Life of Ivan Denisovich and Matryonas Home and the novel Cancer Ward. The analysis found that the nationalism of Sol

The superconductivity under doping in the famous cuprate compounds is believed to originate in the CuO2 planes. The mediator of pairing is generally accepted to be induced from electronic degrees of freedom. While many mechanisms, such as spin fluctuations, have been proposed throughout the years, little research has been carried out on the role of the retarded attraction due to electronic overscr

The attempts to make use of a compulsory licensing provision under the TRIPS Agreement brought human rights, notably, the right to health, into the foreground of the debate between patents and access to medicines. This whole thesis is about the existing tensions between the two regimes – patents and human rights. The growing scholarship that has been devoted to these tensions can be divided into t

Idag betraktas lönearbete som någonting självklart och som en naturlig del i livet, men historiskt sett har det inte varit det för alla medborgare. Länge tillskrevs till exempel kvinnor enbart det reproduktiva arbetet. Trots dagens jämställdhetsagenda tar kvinnor fortfarande ut majoriteten av dagarna med föräldrapenning och utför huvudparten av allt hushållsarbete i hemmet jämförelsevis med män, p

This thesis defined and investigated a general workflow based on model-based design using the Functional Mock-up Interface (FMI), involving Hardware-in-the- Loop (HiL) simulation. The thesis was a direct continuation of Sara Gunnarsson’s master’s thesis "Evaluation of FMI-based Workflow for Simulation and Testing of Industrial Automation Applications", where a Software-in-the-Loop (SiL)

Free Electron Lasers (FEL) are one of the most brilliant light sources in the world and due to their unique properties they are used to push the frontier of knowledge in fields such as biochemistry and protein crystallography. This is the reason why there is a lot of research worldwide about understanding and improving them. Although there are numerous papers describing the output of the FEL in te

The recent success story of gender equality in Sweden puts a shadow over the circumstances during Swedish industrialization when women both lost and won important positions in the economy and in society. Female labor force participation rates developed differently around the Swedish regions between 1870 and 1950 and regional heterogeneity can explain some of the variations where higher urbanizatio

Huge amounts of greenhouse gases continuously released into the atmosphere is of large global concern. Carbon dioxide makes up a large part of released greenhouse gases. Especially the aircraft industry, which is experiencing a steady annual increase as air travel grows in popularity. This business sees 72% of all its combustion products in aircraft exhausts to be carbon dioxide. Swedavia, a compa

This study examines the Refugees Welcome Movement campaign in Malmö between the period September 2015 and June 2016. The purpose of this study derives from the identification of a knowledge gap of descriptive, as well as analytical accounts that conceptualises the many and long withstanding occurrences of collective action within Social movement theory. This study aims therefore to tackle this kno