Domesticated plant taxa cannot be regarded as evolutionarily discrete from their wild relatives. Most domesticated plant taxa mate with wild relatives somewhere in the world, and gene flow from crop taxa may have a substantial impact on the evolution of wild populations. In a literature review of the world's 13 most important food crops, we show that 12 of these crops hybridize with wild relatives

Ett lokalt drama och en tragedi som genast fortplantades, och blev en konfliktfylld nationell vridningspunkt i en händelsekedja som skulle förändra villkoren på svensk arbetsmarknad och kasta om dittillsvarande politiska mönster och lojaliteter i svensk inrikespolitik. Händelsen gav eko, levde vidare, också utanför landets gränser, och ställde viktiga frågor: om maktens anspråk och gränser för att

Mot slutet av 1800-talet växte en ny stark rörelse fram i världen - arbtare förenade sig och blev en politisk kraft.

A large amount of information on health-related issues is today distributed via the internet, including in user-directed forums. People seeking to inform themselves can thereby access contradictory information, stemming from health care institutions as well as other actors. Such information can concern claimed adverse effects of established medical interventions. An example is alternative knowledg

The EU's Common Agricultural Policy (CAP) has had limited success in mitigating agriculture's environmental degradation. In this paper we simulate the impacts of the 2013 “greening” reform on biodiversity and ecosystem services in environmentally contrasting landscapes. We do this by integrating an agent-based model of structural change with spatial ecological production functions, and show that t

The decoupling of direct payments from production represents a substantial reform of the Common Agricultural Policy (CAP). Farmers are no longer required to produce commodities to be entitled to support but only to keep land in Good Environmental and Agricultural Condition. If output declines as a result, there is concern that landscape services produced jointly with commodities will also decline.

We aim to show how some of the important interdisciplinary fixes or solutions to diverse problems observed in fisheries can complement each other. This can be achieved through methodical allocation of the rights pertaining to fisheries and simultaneous implementation of policy instruments to correct for market failures and equity concerns. We emphasize via a roadmap that there are some general pri

Arable nitrogen emissions contribute to serious water-quality problems around the globe. To reduce pollution of the Baltic Sea, Sweden has implemented a comprehensive scheme of nitrogen abatement instruments; a uniform nitrogen fertilizer tax, green payments (subsidies), and land-use regulations. The purpose of this study was to evaluate the relative cost-efficiency of the scheme and to analyze th

We develop an optimal control model for cost-effective management of pollution, including two state variables, pollution stock and ecosystem quality. We apply it to Baltic Sea pollution by nitrogen leachates from agriculture. We present a sophisticated, non-linear model of leaching abatement costs, and a simple model of nitrogen stocks. We find that significant abatement is achievable at reasonabl

A well-functioning arterial system for the transport of oxygen to the cells is essential for human health. The aorta has a key role for the provision of this physiological effect. Disturbances to aortic function can lead to majorsymptoms and even death due to ruptured abdominal aortic aneurysm (AAA). Multiple diseases may exacerbate, or alleviate the symptoms of aortic conditions.This thesis exami

Vad är ett landskapsperspektiv? Jordbrukslandskap är multifunktionella – det vill säga att de bidrar direkt och indirekt med många olika värden. De är helt avgörande för produktionen av livsmedel och för lantbrukarens inkomster, men genererar också andra värden som inte alltid är lika synliga.

Syndecan-2 is a heparan sulfate proteoglycan that has a cell adhesion regulatory domain contained within its extracellular core protein. Cell adhesion to the syndecan-2 extracellular domain (S2ED) is β1 integrin dependent; however, syndecan-2 is not an integrin ligand. Here the protein tyrosine phosphatase receptor CD148 is shown to be a key intermediary in cell adhesion to S2ED, with downstream β

The ligand-binding domain of Fbl (the fibrinogen binding protein from Staphylococcus lugdunensis) shares 60% sequence identity with ClfA (clumping factor A) of Staphylococcus aureus. Recombinant Fbl corresponding to the minimum fibrinogen-binding region (subdomains N2N3) was compared with ClfA for binding to fibrinogen. Fbl and ClfA had very similar affinities for fibrinogen by surface plasmon res

Malaria is a potentially life-threatening disease with approximately half of the world’s population at risk. Young children and pregnant women are hit hardest by the disease. B cells and antibodies are part of an adaptive immune response protecting individuals continuously exposed to the parasite. An infection with Plasmodium falciparum can cause dysregulation of B cell homeostasis, while antibodi

Sediment transport in the cross-shore (CS) and associated changes in the beach profile, especially during storms, have been topics of widespread concern. Since storms are often accompanied by high water levels and large waves, large quantities of sand from the beach and the dune are typically transported offshore, leading to severe beach and dune erosion, which threatens the integrity of buildings

Analysis of a 13-year long, high-resolution data series on beach profiles, surveyed from 1981 to 1993 by the Army Field Research Facility (FRF) at Duck, North Carolina, in the United States, was analyzed in order to understand the temporal and spatial characteristics of the dune response. Various statistical methods were employed in this analysis. The profile survey data set was analyzed with rega