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Mass-flowering crops provide forage for bees but also contain pesticides. Such pesticide exposure can harm bees, but our understanding of how this cost is balanced by forage benefits is limited. To provide insights into benefits and costs, we placed bumblebee colonies in 18 landscapes with conventional red clover fields treated with the neonicotinoid thiacloprid (flowers + pesticide), untreated or
BACKGROUND: Triticum aestivum (wheat) is one of the world's oldest crops and has been used for >8000 years as a food crop in North Africa, West Asia and Europe. Today, wheat is one of the most important sources of grain for humans, and is cultivated on greater areas of land than any other crop. As the human population increases and soil salinity becomes more prevalent, there is increased pressure
Recent studies suggest that oncogenic processes (from precancerous lesions to metastatic cancers) are widespread in wild animal species, but their importance for ecosystem functioning is still underestimated by evolutionary biologists and animal ecologists. Similar to what has been observed in humans, environmental modifications that often place wild organisms into an evolutionary trap and/or expo
Agricultural production systems are affected by complex interactions between social and ecological factors, which are often hard to integrate in a common analytical framework. We evaluated differences in crop production among farms by integrating components of several related research disciplines in a single socio-ecological analysis. Specifically, we evaluated spring barley (Hordeum vulgare, L.)
Realizing that a changing society is in constant need of redefinition, the rural-urban distinction is especially important to look systematically into. One reason is that although the outdatedness of the rural-urban dichotomy is widely acknowledged, it is still largely sustained, not least in ‘rural’ and ‘urban’ development endeavors, which are often conducted separately. Such practice may seem qu
We report here on a peptide hydrogel system, which in contrast to most other such systems, is made up of relatively short fibrillar aggregates, discussing resemblance with colloidal rods. The synthetic model peptides A8K and A10K, where A denotes alanine and K lysine, self-assemble in aqueous solutions into ribbon-like aggregates having an average length 〈L〉 on the order of 100 nm and with a diame
The European Union is often portrayed as a soft, civilian power. In this thesis we question this view of the Union, by comparing it to the United States of America; usually described as a hard power user. We compare the foreign policy actions of the EU and the US in the seventeen conflicts of 2004. With help from K. J. Holsti's division of strategies to exercise power we create our own tool fo
Since Denmark's ?no? to the Maastricht treaty in 1992, public opinion and support for European Integration has been the subject of increasing study. Now that referendums play a greater role in the construction of the European Union, as demonstrated by the forthcoming ratification of the European Constitution, European leaders are finding it necessary to pay more attention to Eurosceptic factio
The aim of this thesis is to examine the effect changes in oil, coal, natural gas and electricity prices have on the stock market. Using a linear regression approach, we study nine market sectors in Sweden and Norway from January 1996 to November 2010. Previous research has in some cases shown that oil prices have a impact on the stock market. We expand this research by including more energy varia
This paper investigates the exchange rate movements for EUR/USD, EUR/SEK and EUR/NOK using an OLS regression. Movements are tested against traditional and nontraditional explanatory variables for exchange rate movements. Traditional variables consists of current account, inflation, productivity and interest rate differentials while the nontraditional are equity returns and risk appetite. Results i
This paper uses an autoethnographic approach to analyze the work of an entrepreneur on a the new venture, AirOhMail, in regards to intellectual property and product protection. By comparing AirOhMail with the failed start-up, SurPrise - both companies attempting to commercialize the same product - this paper demonstrates how a low-level innovation product can better achieve success in the start-up
The countries of the European Union are in an ongoing phase of integration. The influences on individual states domestic structures are unquestionable and the governing prerequisites have changed significantly. Poland, a relatively new member state is in the middle of the process and so this study analyses the effects of Europeanization on polishes domestic structures. The study examines four pub-
