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Scenario: Using adaptive dynamic theory, expose a monomorphic prey population to two habitat types and a visual predator. Questions: What circumstances can lead to the evolution of polymorphic crypsis? How is the outcome affected by the dispersal pattern of the prey and predator, by the amount of predation, and by the trade-off strength between the habitats? Mathematical method: I modelled three d
It is relevant to consider uncertainty in individual predictions when quantitative structure-activity (or property) relationships (QSARs) are used to support decisions of high societal concern. Successful communication of uncertainty in the integration of QSARs in chemical safety assessment under the EU Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) system can be faci
Indonesia has experienced rapid land use change over the last few decades as forests and peatswamps have been cleared for more intensively managed land uses, including oil palm and timber plantations. Fires are the predominant method of clearing and managing land for more intensive uses, and the related emissions affect public health by contributing to regional particulate matter and ozone concent
This paper focuses on future scenarios of demand and supply of grain in China. Economic development has been growing at a steady pace for decades and there are no signs of a decline in the near future. Projections of population trends show that the population will continue to expand until 2050, when a levelling- off is predicted. The growth of both population and economy drives industrialisation a
A new fragmentation model for multigluon strings is presented
This study aims to verify the effect of physically removing the outer surface of contaminated concrete on total contents and on potential mobility of pollutants by means of leaching tests. Reclaimed concrete from 3 industrial sites in Sweden were included: A tar impregnated military storage, a military tar track-depot, as well as concrete constructions used for disposing of pesticide production su
Predictive models used in decision making, such as QSARs in chemical regulation or drug discovery, call for evaluated approaches to quantitatively assess associated uncertainty in predictions. Uncertainty in less reliable predictions may be captured by locally varying predictive errors. In the current study, model-based bootstrapping was combined with analogy reasoning to generate predictive distr
Over the past 30 years a vast number of studies have demonstrated the presence of pharmaceutical residues in the environment. But still knowledge is scarce regarding the interaction of these emerging pollutants with various matrices in nature. A chromatographic system with on-line detection was devel- oped to perform a sorption study of six selected pharmaceuticals to four natural sediments and de
Fish are more sensitive to introduced disturbances from synthetic endocrine disrupting compounds during early life phases compared with mature stages. 17α-Ethinylestradiol (EE2), which is the active compound in human oral contraceptives and hormone replacement therapies, is today ever present in the effluents from sewage treatment plants. EE2 targets and interacts with the endogenous biological sy
Ancient DNA trapped in the matrices of ceramic transport jars from Mediterranean shipwrecks can reveal the goods traded in the earliest markets. Scholars generally assume that the amphora cargoes of 5th-3rd century B.C. Greek shipwrecks contained wine, or to a much lesser extent olive oil. Remnant DNA inside empty amphoras allows us to test that assumption. We show that short 100 nucleotides of an
Estrogen receptors (ers) not only are activated by hormones but also interact with many human-derived environmental contaminants. Here, we present evidence for four expressed er genes in Atlantic salmon cDNA - two more ers (erα2 and erβ2) than previously published. To determine if er gene expression differs between two adult life-stages we sampled 20 adult salmon from the feeding phase in the Balt
Since a large growth in population occurred during the 1800-1900 centuries in Sweden, an expansion of agricultural land became a necessity. The government provided farmers with an allowance to exploit wetlands. A large portion of wetlands has since then been lost and used for cultivation, in particular peat lands. The drainage of peat lands results in a loss in biodiversity, poorer water condition
Chemicals are becoming more and more important and almost essential for human life. Therefore, the human exposure of hazardous chemicals has increased substantially. Alternative assessment (AA) is a method used for substitution of hazardous chemicals and requirements for substitution are included in European health and safety legislation. As part of Region Kalmar läns environmental and sustainabil
Reducing plastic waste incineration is crucial for Sweden’s transition to a carbon neutral society in 2045. To achieve this goal, it is essential to increase the material recycling of plastics. The availability of recyclable plastics depends on the private individual’s participation in sorting their plastic waste at the municipal recycling centres. Currently, the sorting quality of the rigid plast
Electronic waste is the fastest growing waste category, seen as a consequence of the industry’s rapid technological advancement. The waste in this industry is problematic due to the inherent heterogenic property of devices, the toxicity of the waste, as well as resource intensive production of the required materials. To decrease this waste and the resource demand in the production of electrical de
Emissions from drained organic soils is a big contributor to global warming and corresponds to 5% of global and 25% of Sweden’s greenhouse gas (GHG) emissions. This study uses a GIS-analysis to map the organic soils in Kristianstad municipality in Sweden and what land use occurs on these soils. The purpose of the study is to provide the municipality with information when investigating the possibi
Packaging waste is an active environmental problem. There is an ongoing process of change in both the EU and Sweden to reduce the amount of packaging waste and create more resources for a circular flow. Considering this, there are contexts, despite new legislation, where single-use packaging will still be offered. Therefore it becomes significant to understand how the consumer can be influenced in
Environmental pollution caused by human activity is one of today's biggest dilemmas. Pollution in air, water and soil can pose risks to human health and the environment and can lead to a reduction in available resources. Investigating and remediating contaminated areas is therefore an important task. In the past 20 years, there have been two major spills of gasoline and diesel at the Energy Po
This paper explores how barriers and risks are perceived by different actors involved in Northvolt's establishment in Skellefteå, Sweden, through the Multi-Level Perspective (MLP) and risk perspective. The study employs a qualitative research design and utilizes document analysis and semi-structured interviews to collect data. The findings contribute to the existing risk framework by introduci
This study aims to investigate the ecological sustainability of different beverage packaging and compare this to consumers’ perception of the most environmentally friendly packaging type. A literature analysis was made to understand the advantages and disadvantages of different packaging as well as consumer behavior from other surveys in other studies. Lastly this study conducted and preformed its
