Browsing Faculty of Science / Naturvetenskapliga fakulteten by Title
Now showing items 168-187 of 785
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Early Life History of the cold-water coral Lophelia pertusa - with implications for dispersal
(2016-03-18)For sessile marine invertebrates the pelagic larval stage is the only means for dispersal, and thus govern population connectivity and maintenance of genetic diversity. It is also a kind of life insurance, i.e. it reduces ... -
Ecological aspects of marine Vibrio bacteria - Exploring relationships to other organisms and a changing environment
(2013-02-04)Heterotrophic bacteria of the genus Vibrio are indigenous in the marine environment although environmental cues regulate their growth and distribution. The attention brought to this genus is due to its many species/strains ... -
Ecological disturbances: the good, the bad and the ugly
(2010-11-02)Abstract. This thesis focuses on the definitions, characterizations and quantifications of ecological disturbances, as well as hypotheses on their impacts on biological communities. The most prominent model on effects ... -
Ecological genetics of inbreeding, outbreeding and immunocompetence in Ranid frogs
(2008-11-21)Using artificial fertilization, I crossed frogs from different populations to evaluate fitness consequences for the offspring from an inbreeding-outbreeding perspective, and to evaluate quantitative genetic effects on ... -
Ecological risk screening of metal (Pb and Zn) contaminated acidic soil using a triad approach
(2013-05-14)Lead (Pb) and zinc (Zn) are common metal contaminants in terrestrial environments. Decisions on remediation of metal contaminated soil are often based on risk estimates derived from generic guideline values. Guideline ... -
Ecophysiology of Polar Sea Ice Microorganisms in a Changing World
(2015-10-05)Earth’s oceans are predominantly cold, with nearly 90% of their volume having temperatures below 5 °C. Microorganisms commonly referred to as psychrophiles have adapted to the temperatures of these cold waters. The most ... -
Ecotoxicology of antifouling biocides - with special focus on the novel antifoulant medetomidine and microbial communities
(2013-09-16)Marine biofouling, growth on submerged surfaces, is a problem for the commercial shipping industry but also for recreational boat owners. It leads to increased fuel consumption, loss of maneuverability and is a source of ... -
Effect of Microwaves on Microtubule Structure and Function probed by Light and X-ray Scattering
(2018-02-15)We are constantly exposed to radiation in some form or another from our environment. High frequency electromagnetic radiation, including ultraviolet light and X-rays, cause damage to living organisms due to ionization ... -
The Effect of Site-Specific Mutations on hIAPP Fibril Polymorphism: A Cryo-EM Study Towards Potential Inhibitors
(2024-01-25)The development of amyloid deposits in tissues, as a consequence of the self-assembly of misfolded proteins, is a critical pathological feature in a range of diseases, including neurodegenerative disorders and metabolic ... -
Effects of carbon dioxide and ozone on wheat crop yield and grain quality
(2021-10-05)Atmospheric concentrations of carbon dioxide (CO2) and ozone (O3) have steadily increased since the industrial revolution. CO2 and O3 directly affect plant physiology, CO2 being an essential substrate for photosynthesis, ... -
Effects of contaminant mixtures on marine zooplankton diversity and function
(2023-05-02)Chemicals have important roles in our society and can be used as ingredients in personal care products, pesticides, pharmaceuticals, as well as be components of fuels used in cars or ships. More than 350 000 chemicals and ... -
Effects of future climate on carbon assimilation of boreal Norway spruce
(2008-10-10)In boreal forests, the main factors limiting biomass production are the harsh climate, which combines a short growing season and low annual levels of incoming solar energy, and the limited availability of nitrogen. These ... -
Effects of intermittent exposure of marine pollutants on sugar kelp and periphyton
(2009-01-28)Pollution in the natural aquatic environment is erratic and manifests as temporary increments of chemical concentrations, pulses. Traditional ecotoxicological testing does not consider intermittent exposures and does not ... -
Effects of mixtures of endocrine disrupting chemicals – Thyroid disruption and behavioural effects in fish models
(2022-01-07)Wildlife and humans are continuously exposed to thousands of man-made compounds, including chemicals that are able to act as endocrine disruptors (EDCs). These pollutants are able to affect vital processes including brain ... -
Effects of pharmaceuticals on natural microbial communities: Tolerance development, mixture toxicity and synergistic interactions
(2010-09-17)Due to our extensive use of pharmaceuticals, low concentrations (picomol-nanomol/L) end up in the aquatic environment. Antibiotics comprise a group of pharmaceuticals specifically designed to disrupt microbial ... -
Efficient Adaptive Algorithms for an Electromagnetic Coefficient Inverse Problem
(2017-06-08)This thesis comprises five scientific papers, all of which are focusing on the inverse problem of reconstructing a dielectric permittivity which may vary in space inside a given domain. The data for the reconstruction ... -
Efficient training of interpretable, non-linear regression models
(2023-06-30)Regression, the process of estimating functions from data, comes in many flavors. One of the most commonly used regression models is linear regression, which is computationally efficient and easy to interpret, but lacks ... -
Egg size evolution and paternal care in pipefishes.
(2010-08-30)In this thesis I explore how sexual selection, sexual conflicts, coevolution with parental care and an environmental selective agent (hypoxia) affect the evolution of different egg characteristics and embryo survival and ... -
Ekfällning med yxa
(H, 2015)Anna Johansson och Robert Carlsson fäller en ek med en medeltidsyxa. Virket ska användas i rekonstruktionen av Södra Råda medeltidskyrka. Filmen är inspelad i Ullene, Västergötland den 27 augusti 2015. Kameror, ljud, ... -
Electrocatalytic properties of Ni hydroxides with Zn or Co in the Ni matrix
(2014-01-17)The majority of the work in this thesis has been made with the improvement of the systems for electrochemical co-generation of chemicals and electricity in mind. This is an appealing but challenging way of producing chemicals ...