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Greinar- HÍ: Síðast bætt við
Atriði 521-540 af 1778
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(Wiley, 2020-05-12)1,3‐Bis(diphenylene)‐2‐phenylallyl (BDPA)‐based radicals are of interest as polarizing agents for dynamic nuclear polarization (DNP). For this purpose, a BDPA‐nitroxide biradical, employing a phosphodiester linkage, was synthesized. Contrary to what ... -
(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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(Royal Society of Chemistry (RSC), 2018)In the first example of site-directed spin-labeling of unmodified RNA, a pyrrolidine-nitroxide derivative of tetramethylrosamine (TMR) was shown to bind with high affinity to the malachite green (MG) aptamer, as determined by continuous-wave (CW) ...
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(Wiley, 2018-08-13)The investigation of the structure and conformational dynamics of biomolecules under physiological conditions is challenging for structural biology. Although pulsed electron paramagnetic resonance (like PELDOR) techniques provide long‐range distance ...
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(The Educational Research Institute, 2020-02-06)Markmið öndvegisverkefnisins Greining á málfræðilegum afleiðingum stafræns málsambýlis, sem lýst er í þessari grein, er að kanna stöðu íslensku á tímum mikilla samfélags- og tæknibreytinga, með sérstöku tilliti til hugsanlegra áhrifa ensku, einkum í ...
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(Eurasian Society of Educational Research, 2019-04-15)The paper is part of the qualitative research project Educational Aspirations, Opportunities and Challenges for Immigrants in University Education in Iceland, conducted in Iceland’s three biggest universities. The main goal of the paper is to investigate ...
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(Menntavísindasvið Háskóla Íslands, 2016-12-31)Fjölgun innflytjenda í háskólum á Íslandi kallar á viðbrögð háskólayfirvalda, kennara og háskólasamfélagsins. Íslenskar og erlendar rannsóknir sýna að menntastofnanir, einkum á háskólastigi, gegna mikilvægu hlutverki við að tryggja félagslegt jafnrétti, ...
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(Oslo and Akershus University College of Applied Sciences, 2019-05-28)The paper is based on the first, extensive, qualitative study on immigrant students’ experiences of university education in Iceland. The theoretical framework is based on culturally responsive teaching that derives from multicultural education theory ...
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(Emerald, 2018-11-06)Purpose: Iceland, along with the other Nordic countries, is seen as an international frontrunner in gender equality and equal sharing of responsibility for paid and unpaid work is part of the official ideology. Nevertheless, the number of women in ...
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(Informa UK Limited, 2018-07-18)The image of the warrior as the ultimate symbol of manhood is familiar across cultures and countries. There is a large quantity of research that demonstrates the connection between militarism and masculinity, and militarized masculinities have been ...
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(Informa UK Limited, 2018-01-02)In both academic literature and policy discourse, ex-combatants are at times depicted as a threat to peace rather than agents of positive change. However, many of my ex-combatant interlocutors in Burundi were working actively on conflict resolution and ...
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(Royal Society of Chemistry (RSC), 2018)A new isoindoline-derived benzimidazole nitroxide spin label, ImUm, was synthesized and incorporated into RNA oligoribonucleotides. ImUm is the first example of a conformationally unambiguous spin label for RNA, in which the nitroxide N–O bond lies on ...
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(Royal Society of Chemistry (RSC), 2017)Distance measurements are performed between a pair of spin labels attached to nucleic acids using Pulsed Electron–Electron Double Resonance (PELDOR, also called DEER) spectroscopy which is a complementary tool to other structure determination methods ...
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(Royal Society of Chemistry (RSC), 2016)An isoindoline-nitroxide derivative of guanine (G, "G-spin") was shown to bind specifically and effectively to abasic sites in duplex RNAs. Distance measurements on a G-labeled duplex RNA with PELDOR (DEER) showed a strong orientation dependence. Thus, ...
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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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(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), 2015)Two aromatic isothiocyanates, derived from isoindoline nitroxides, were synthesized and selectively reacted with 2′-amino groups in RNA. The spin labels displayed limited mobility in RNA, making them promising candidates for distance measurements by ...
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(Royal Society of Chemistry (RSC), 2015)Mn2+ localization in hairpin 92 of the 23S ribosomal RNA (HP92) was obtained using W-band (95 GHz) DEER (double electron-electron resonance) distance measurements between the Mn2+ ion and nitroxide spin labels on the RNA. It was found to be preferably ...
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(Wiley, 2015-01-23)A novel heterogeneous dirhodium catalyst has been synthesized. This stable catalyst is constructed from dirhodium acetate dimer (Rh2(OAc)4) units, which are covalently linked to amine‐ and carboxyl‐bifunctionalized mesoporous silica (SBA‐15NH2COOH). ...
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(Informa UK Limited, 2014-11-20)Electron paramagnetic resonance (EPR) spectroscopy is a powerful and widely used technique for studying structure and dynamics of biomolecules under bio-orthogonal conditions. In-cell EPR is an emerging area in this field; however, it is hampered by ...
Atriði 521-540 af 1778