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Browsing Greinar- HÍ by Title
Now showing items 1250-1269 of 1761
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(American Chemical Society (ACS), 2017-07-21)Here we present a combined experimental and theoretical study on the fragmentation of o- and p-tetrafluorohydroquinone upon low energy electron attachment. Despite an identical ring-skeleton and identical functional groups in these constitutional ... -
(Springer Science and Business Media LLC, 2020-04-22)Metastatic progression is the leading cause of mortality in breast cancer. Invasive tumor cells develop invadopodia to travel through basement membranes and the interstitial matrix. Substantial efforts have been made to characterize invadopodia molecular ...
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(Springer Science and Business Media LLC, 2019-04-16)Nerve conduction (NC) studies generate measures of peripheral nerve function that can reveal underlying pathology due to axonal loss, demyelination or both. We perform a genome-wide association study of sural NC amplitude and velocity in 7045 Icelanders ...
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(Springer Science and Business Media LLC, 2019-12-10)Background: An increasing number of women are evaluated for potential breast cancer and may experience mental distress during evaluation. We aim to assess the risks of psychiatric disorders and cardiovascular diseases during the diagnostic workup of ...
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(Springer Nature, 2017-10-14)The literature on sexual minority adolescents and young adults has highlighted a poor mental status among those groups compared to their heterosexual peers. Sexual minorities are also more likely to experience stress factors such as bullying and physical ...
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(Stofnun stjórnsýslufræða og stjórnmála við Háskóla Íslands, 2018-05-30)This paper compares the number of corporatist public committees, appointed by central government, in Iceland and Scandinavia (Denmark, Norway, Sweden). Its main aim is to shed light on where Iceland stands compared to these countries in term of corporatist ...
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(Wiley, 2020-07-14)Little is known about how health insurance policies, particularly in developing countries, influence breast cancer prognosis. Here, we examined the association between individual health insurance and breast cancer-specific mortality in China. We included ...
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(MDPI AG, 2020-03-27)In recent years, there has been a gradually growing emphasis on the protection of wilderness in Iceland. This is highlighted in the current preparation of a new national park in the Icelandic central highlands, which will become Europe's largest national ...
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(Royal Society of Chemistry (RSC), 2015)Pulsed electron paramagnetic resonance (EPR) spectroscopy is a valuable technique for the precise determination of distances between paramagnetic spin labels that are covalently attached to macromolecules. Nitroxides have commonly been utilised as ...
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(Royal Society of Chemistry (RSC), 2018)A new 1.2 Å crystal structure of vanadium nitrogenase, isolated under turnover conditions, recently revealed a light atom ligand (OH or NH) replacing the bridging S2B sulfide of the FeV cofactor. QM/MM calculations on the new structure now reveal the ...
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(American Chemical Society (ACS), 2017-10-20)Nitrogenase is one of the most fascinating enzymes in nature, being responsible for all biological nitrogen reduction. Despite decades of research, it is among the enzymes in bioinorganic chemistry whose mechanism is the most poorly understood. The ...
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(Wiley, 2020-05-11)Purpose: Exposure definitions vary across pharmacoepidemiological studies. Therefore, transparent reporting of exposure definitions is important for interpretation of published study results. We aimed to assess the quality of reporting of exposure to ...
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(American Geophysical Union (AGU), 2023-01-13)The considerable effects that wind can have on estimates of mass eruption rates (MERs) in explosive eruptions based on volcanic plume height are well known but difficult to quantify rigorously. Many explicitly wind-affected plume models have the ...
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(Springer Science and Business Media LLC, 2020-03-05)Osteoarthritis is an increasingly important health problem for which the main treatment remains joint replacement. Therapy developments have been hampered by a lack of biomarkers that can reliably predict disease, while 2D radiographs interpreted by ...
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(Proceedings of the National Academy of Sciences, 2017-12-21)Do human societies from around the world exhibit similarities in the way that they are structured, and show commonalities in the ways that they have evolved? These are long-standing questions that have proven difficult to answer. To test between competing ...
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(Royal Society of Chemistry (RSC), 2017)We introduce a fully stand-alone version of the Quantum Chemistry Electron Ionization Mass Spectra (QCEIMS) program [S. Grimme, Angew. Chem. Int. Ed., 2013, 52, 6306] allowing efficient simulations for molecules composed of elements with atomic numbers ...
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(American Chemical Society (ACS), 2020-08-05)The nitrogenase enzymes are responsible for all biological nitrogen reduction. How this is accomplished at the atomic level, however, has still not been established. The molybdenum-dependent nitrogenase has been extensively studied and is the most ...
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(American Physical Society (APS), 2018-04-26)We developed the theory of electronic properties of semiconductor quantum rings with the Rashba spin-orbit interaction irradiated by an off-resonant high-frequency electromagnetic field (dressing field). Within the Floquet theory of periodically driven ...
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(Springer Science and Business Media LLC, 2019-08-01)A macroscopic version of Einstein-Podolsky-Rosen entanglement is obtained by quenching a quadratic coupling between two O(N) vector models. A quench of the mixed vacuum produces an excited entangled state, reminiscent of purified thermal equilibrium, ...
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(2015)Abstract This paper investigates the importance for pupils’ learning of being generally visibly active participant in a classroom discussion. A class of six year-old pupils was taught about the human skeletal system and other organs. To determine ...
Now showing items 1250-1269 of 1761