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Fletta eftir deild "Raunvísindadeild (HÍ)"
Atriði 1-20 af 128
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(Springer Nature, 2017-04-25)Several copy number variants have been associated with neuropsychiatric disorders and these variants have been shown to also influence cognitive abilities in carriers unaffected by psychiatric disorders. Previously, we associated the 15q11.2(BP1–BP2) ... -
(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2019-09-02)An active field of research in magnetism today involves studies of solitons -- localised magnetic textures possessing particle-like properties. They are considered promising for various applications but are also intriguing from a fundamental point of ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2017-06)Electron paramagnetic resonance (EPR) spectroscopy is routinely used to study the structure and dynamics of nucleic acids, to obtain information about their functions. A prerequisite for most EPR studies of nucleic acids is the incorporation of ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2020-02-01)Rafeindasegullitrófsgreiningu (e. Electron Paramagnetic Resonance, EPR) er reglubundið beitt í rannsóknum á byggingu og hreyfingu kjarnsýra til að fá upplýsingar um starfsemi þeirra og hlutverk. Innleiðing meðseglandi kjarna á ákveðinn stað í kjarnsýrum ...
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(Aalto University School of Science, 2019)Chemical reactions and other transitions involving rearrangements of atoms can be studied theoretically by analyzing a potential energy surface defined in a high-dimensional space of atom coordinates. Local minimum points of the energy surface correspond ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2020)Nature has been successful in self-assembling simple building blocks to complex functional architectures and the concept of supramolecular chemistry has enabled chemists to mimic nature's self-assembly principles. The understanding of the assembly/reassembly ...
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(Springer Nature, 2017-09-20)Understanding how edge misfit dislocations (MDs) form in a GeSi/Si(001) film has been a long standing issue. The challenge is to find a mechanism accounting for the presence of these dislocations at the interface since they are not mobile and cannot ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2022-06-27)The research described in this thesis is part of a network project involving the growth of metal nanostructures on surfaces of solids, a Horizon 2020 project titled ELENA. The part of the project described here involved the use of various approaches ...
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(Copernicus GmbH, 2018-07-11)Bayesian hierarchical modeling can assist the study of glacial dynamics and ice flow properties. This approach will allow glaciologists to make fully probabilistic predictions for the thickness of a glacier at unobserved spatiotemporal coordinates, and ...
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bcTol: a highly water-soluble biradical for efficient dynamic nuclear polarization of biomolecules (Royal Society of Chemistry (RSC), 2016)Dynamic nuclear polarization (DNP) is an efficient method to overcome the inherent low sensitivity of magic-angle spinning (MAS) solid-state NMR. We report a new polarizing agent (bcTol), designed for biological applications, that yielded an enhancement ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2020-12-15)Dynamic nuclear polarization (DNP) has emerged as an important technique to enhance the signal intensity of nuclear magnetic resonance (NMR) spectroscopy by transferring spin polarization from unpaired electrons to nuclei of interest. Persistent organic ...
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(Wiley, 2019-06-17)Oligonucleotides containing nitroxide spin labels, used in biophysical studies of nucleic acids, are frequently prepared by chemical synthesis. However, during the synthesis of spin‐labeled oligonucleotides, the nitroxides are partially reduced to the ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2023-02)Today, society is reliant on nonrenewable fossil fuels and petrochemical derivatives. As the global population increases, energy and materials are rapidly diminishing, and a drastic, responsive change is needed to achieve a more sustainable world. It ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2021-04)Application of external beam radiation therapy (EBRT) to localized cancer has long been regarded as a standard treatment option with its purpose being to deliver a ho- mogeneous high-dose distribution within the tumor volume while protecting organs at ...
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(2021-04-09)Direct optimization methods for the calculation of ground and excited electronic states are presented for both total density and orbital-density-dependent functionals. The methods have been developed for various types of basis sets including localized ...
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(American Chemical Society (ACS), 2018-04-23)CO2 can be reduced electrochemically to form valuable chemicals such as hydrocarbons and alcohols using copper electrodes, whereas the other metal electrodes tested so far mainly form CO or formate, or only the side product, H2. Accurate modeling of ...
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(Elsevier BV, 2016-07)Alkaline phosphatase is a homodimeric metallo-hydrolase where both Zn2+ and Mg2+ are important for catalysis and stability. Cold-adapted alkaline phosphatase variants have high activity at low temperatures and lower thermal stability compared with ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2017-10)The physics of light-matter interactions is a rapidly developing interdisciplinary research area, combining methods and phenomena both from condensed matter physics and quantum optics. One of the most common realizations of strong coupling regime implies ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2020-06-18)The advent of ecosystem-based fisheries management (EBFM) in recent years has expanded the scope of fisheries management, where policies are aimed not only at maximizing production (or biological yield) but also maintaining an optimal balance between ...
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(Royal Society of Chemistry (RSC), 2017)An investigation of the active site cofactors of the molybdenum and vanadium nitrogenases (FeMoco and FeVco) was performed using high-resolution X-ray spectroscopy. Synthetic heterometallic iron–sulfur cluster models and density functional theory ...
Atriði 1-20 af 128