Zobrazeno 1 - 10
of 5 870
pro vyhledávání: '"Helgason AS"'
Cage subsidence after instrumented lumbar spinal fusion surgery remains a significant cause of treatment failure, specifically for posterior or transforaminal lumbar interbody fusion. Recent advancements in computational techniques and additive manuf
Externí odkaz:
http://arxiv.org/abs/2406.17487
Autor:
Gudmundur Einarsson, Gudmar Thorleifsson, Valgerdur Steinthorsdottir, Florian Zink, Hannes Helgason, Thorhildur Olafsdottir, Solvi Rognvaldsson, Vinicius Tragante, Magnus O. Ulfarsson, Gardar Sveinbjornsson, Audunn S. Snaebjarnarson, Hafsteinn Einarsson, Hildur M. Aegisdottir, Gudrun A. Jonsdottir, Anna Helgadottir, Solveig Gretarsdottir, Unnur Styrkarsdottir, Hannes K. Arnason, Ragnar Bjarnason, Emil Sigurdsson, David O. Arnar, Einar S. Bjornsson, Runolfur Palsson, Gyda Bjornsdottir, Hreinn Stefansson, Thorgeir Thorgeirsson, Patrick Sulem, Unnur Thorsteinsdottir, Hilma Holm, Daniel F. Gudbjartsson, Kari Stefansson
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Mendelian Randomization studies indicate that BMI contributes to various diseases, but it’s unclear if this is entirely mediated by BMI itself. This study examines whether disease risk from BMI-associated sequence variants is mediated thro
Externí odkaz:
https://doaj.org/article/831467727cde44b696a5d980963a4278
Autor:
Lei, Fuchuan, Sun, Yi, Helgason, Óskar B., Ye, Zhichao, Gao, Yan, Karlsson, Magnus, Andrekson, Peter A, Torres-Company, Victor
Publikováno v:
Optica 11(3) 420-426(2024)
Narrow-linewidth yet tunable laser oscillators are one of the most important tools for precision metrology, optical atomic clocks, sensing and quantum computing. Commonly used tunable coherent oscillators are based on stimulated emission or stimulate
Externí odkaz:
http://arxiv.org/abs/2310.08325
Autor:
Girardi, Marcello, Helgason, Óskar B., Ortega, Carmen H. López, Rebolledo-Salgado, Israel, Torres-Company, Victor
Photonic integrated circuits utilize planar waveguides to process light on a chip, encompassing functions like generation, routing, modulation, and detection. Similar to the advancements in the electronics industry, photonics research is steadily tra
Externí odkaz:
http://arxiv.org/abs/2309.02280
Autor:
Astros Th. Skuladottir, Vinicius Tragante, Gardar Sveinbjornsson, Hannes Helgason, Arni Sturluson, Anna Bjornsdottir, Palmi Jonsson, Vala Palmadottir, Olafur A. Sveinsson, Brynjar O. Jensson, Sigurjon A. Gudjonsson, Erna V. Ivarsdottir, Rosa S. Gisladottir, Arni F. Gunnarsson, G. Bragi Walters, Gudrun A. Jonsdottir, Thorgeir E. Thorgeirsson, Gyda Bjornsdottir, Hilma Holm, Daniel F. Gudbjartsson, Patrick Sulem, Hreinn Stefansson, Kari Stefansson
Publikováno v:
npj Parkinson's Disease, Vol 10, Iss 1, Pp 1-4 (2024)
Abstract Parkinson’s disease (PD) is a debilitating neurodegenerative disorder and its rising global incidence highlights the need for the identification of modifiable risk factors. In a gene-based burden test of rare variants (8647 PD cases and 77
Externí odkaz:
https://doaj.org/article/9aa8f9c144d343d0b195882dbbc8bdcb
Autor:
Alina V. Shevchenko, Thomas R. Walter, Magnus T. Gudmundsson, Joaquín M. C. Belart, Pouria Marzban, Edgar U. Zorn, Þorsteinn Sæmundsson, Jón Kristinn Helgason, Jens M. Turowski, Magdalena S. Vassileva, Mahdi Motagh, Daniel Müller
Publikováno v:
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-17 (2024)
Abstract Calderas are subcircular depressions with near-vertical walls, which are often gravitationally unstable and prone to mass movements that sequentially widen their basins. However, the details of these erosional changes are difficult to deciph
Externí odkaz:
https://doaj.org/article/354a0d83fc574c18ab193faa68fbe0ff
Autor:
Tom L. Clegg, Signe Christensen-Dalsgaard, Vegard Sandøy Bråthen, Arnaud Tarroux, Johannis Danielsen, Sébastien Descamps, Arne Follestad, Gunnar Thor Hallgrimsson, Morten Helberg, Hálfdán H. Helgason, Jón Einar Jónsson, Yann Kolbeinsson, Hallvard Strøm, Paul Thompson, Thorkell Lindberg Thorarinsson, Tom Williams, Kim Magnus Bærum
Publikováno v:
Global Ecology and Conservation, Vol 56, Iss , Pp e03350- (2024)
Seabirds are vulnerable to bycatch in longline fisheries but for most species the impacts are largely unknown. To address this knowledge gap, studies can estimate bycatch directly using observations or calculate the theoretical risk of bycatch using
Externí odkaz:
https://doaj.org/article/0751832a25bf432382069c8729839215
Publikováno v:
The Cryosphere, Vol 18, Pp 3277-3295 (2024)
Despite decades of effort, there remains an inability to measure snow water equivalent (SWE) at high spatial resolutions using remote sensing. Passive gamma ray spectrometry is one of the only well-established methods to reliably remotely sense SWE,
Externí odkaz:
https://doaj.org/article/d09b992f19cc4884a815429aeb8c5e40
Autor:
H. B. Helgason, B. Nijssen
Publikováno v:
Earth System Science Data, Vol 16, Pp 2741-2771 (2024)
Access to mountainous regions for monitoring streamflow, snow and glaciers is often difficult, and many rivers are thus not gauged and hydrological measurements are limited. Consequently, cold-region watersheds, particularly heavily glacierized ones,
Externí odkaz:
https://doaj.org/article/9a6262e116f94a0d9108e7af4505d7f4
Publikováno v:
Frontiers in Bioengineering and Biotechnology, Vol 12 (2024)
BackgroundThe success of using bone mineral density and/or FRAX to predict femoral osteoporotic fracture risk is modest since they do not account for mechanical determinants that affect bone fracture risk. Computed Tomography (CT)-based geometric, de
Externí odkaz:
https://doaj.org/article/711181a622214a1ea166e6079cb86bcb