Greinar - HR: Síðast bætt við

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    Development and Guiding Principles of the Icelandic Model for Preventing Adolescent Substance Use 
    Kristjansson, Alfgeir; Mann, Michael J.; Sigfusson, Jon; Thorisdottir, Ingibjorg; Allegrante, John P.; Sigfúsdóttir, Inga Dóra (SAGE Publications, 2020-01)
    Adolescent substance use-the consumption of alcohol, tobacco, and other harmful drugs-remains a persistent global problem and has presented ongoing challenges for public health authorities and society. In response to the high rates of adolescent substance ...
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    Design-Oriented Two-Stage Surrogate Modeling of Miniaturized Microstrip Circuits With Dimensionality Reduction 
    Koziel, Slawomir; Pietrenko-Dabrowska, Anna; Al-Hasan, Mu'ath (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Contemporary microwave design heavily relies on full-wave electromagnetic (EM) simulation tools. This is especially the case for miniaturized devices where EM cross-coupling effects cannot be adequately accounted for using equivalent network models. ...
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    Current Status and Future Prospects of Genome-Scale Metabolic Modeling to Optimize the Use of Mesenchymal Stem Cells in Regenerative Medicine 
    Sigmarsdóttir, Þóra; McGarrity, Sarah; Rolfsson, Óttar; Yurkovich, James T.; Sigurjónsson, Ólafur E. (Frontiers Media SA, 2020-03-31)
    Mesenchymal stem cells are a promising source for externally grown tissue replacements and patient-specific immunomodulatory treatments. This promise has not yet been fulfilled in part due to production scaling issues and the need to maintain the correct ...
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    Cost-Efficient Bi-Layer Modeling of Antenna Input Characteristics Using Gradient Kriging Surrogates 
    Pietrenko-Dabrowska, Anna; Koziel, Slawomir; Al-Hasan, Mu'ath (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Over the recent years, surrogate modeling has been playing an increasing role in the design of antenna structures. The main incentive is to mitigate the issues related to high cost of electromagnetic (EM)-based procedures. Among the various techniques, ...
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    Concrete mixing truck as a rheometer 
    Wallevik, Jon Elvar; Wallevik, Olafur Haralds (Elsevier BV, 2020-01)
    An increasing interest has emerged in correlating the output of the concrete mixing truck to values obtained by rotational rheometers. The output of the former has usually been the hydraulic pressure needed to turn the drum. In such research, experimental ...
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    Comparison of Spasticity in Spinal Cord Injury and Stroke Patients using Reflex Period in Pendulum Test 
    Kristinsdóttir, Kristjana; Magnusdottir, Gigja; Chenery, Belinda; Guðmundsdóttir, Vilborg; Gudfinnsdottir, Halla; Kárason, Halldór; Ludvigsdóttir, Guðbjörg; Helgason, Thordur (PAGEPress Publications, 2020-04-01)
    Spasticity is a motor impairment present in patients with both stroke and spinal cord injury. In this research, the results from the Wartenberg pendulum test, performed on stroke and spinal cord injury patients using goniometers and electromyogram ...
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    Clinical Usefulness of Bright White Light Therapy for Depressive Symptoms in Cancer Survivors: Results from a Series of Personalized (N-of-1) Trials 
    Kronish, Ian M.; Cheung, Ying Kuen; Julian, Jacob; Parsons, Faith; Lee, Jenny; Yoon, Sunmoo; Valdimarsdottir, Heiddis; Green, Paige; Suls, Jerry; Hershman, Dawn L.; Davidson, Karina W. (MDPI AG, 2019-12-30)
    Purpose: Little is known about the effectiveness of bright white light therapy (BWL) for depressive symptoms in cancer survivors, many of whom prefer non-pharmacological treatments. The purpose of this study was to compare the effectiveness of BWL ...
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    Circular Polarization Diversity Implementation for Correlation Reduction in Wideband Low-Cost Multiple-Input-Multiple-Output Antenna 
    Ullah, Ubaid; Al-Hasan, Muath; Koziel, Slawomir; Mabrouk, Ismail Ben (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    In this paper, a multiple-input-multiple-output (MIMO) antenna featuring circular polarization diversity, and designed on a common coplanar ground is presented. The proposed antenna design utilizes a coplanar waveguide (CPW) feeding technique with three ...
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    A systematic review and meta-analysis comparing the effect of aquatic and land exercise on dynamic balance in older adults 
    Vakula, Michael N.; Waller, Benjamin; Bressel, Eadric; Kim, Youngwook (Springer Science and Business Media LLC, 2020-08-25)
    Abstract Background: Balance impairments are the leading causes of falls in older adults. Aquatic-based exercises have been broadly practiced as an alternative to land-based exercises; however, the effects on dynamic balance have not been comprehensively ...
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    Longitudinal association between social media use and psychological distress among adolescents 
    Thorisdottir, Ingibjorg; Sigurvinsdottir, Rannveig; Kristjansson, Alfgeir; Allegrante, John P.; Lilly, Christa L.; Sigfúsdóttir, Inga Dóra (Elsevier, 2020-12)
    This study aimed to examine in a longitudinal cohort design whether social media use among adolescents is related to symptoms of social anxiety, depressed mood, and physical symptoms of anxiety over time. As part of the LIFECOURSE study of risk and ...
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    The devil is not only in the details: gist and detail elaboration in intoxicated witnesses’ reports of interpersonal violence 
    Hildebrand Karlén, Malin; Roos af Hjelmsäter, Emma; Gudjonsson, Gisli (Informa UK Limited, 2018-10-06)
    The empirical base relating to alcohol's effects on underlying memory mechanisms among witnesses is sparse. Therefore, the effect of alcohol intoxication on memory mechanisms was investigated, as well as how degree of intoxication and interview delay ...
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    Stories vs. facts: triggering emotion and action-taking on climate change 
    Morris, Brandi S.; Chrysochou, Polymeros; Christensen, Jacob Dalgaard; Lund Orquin, Jacob; Barraza, Jorge; Zak, Paul J.; Mitkidis, Panagiotis (Springer Science and Business Media LLC, 2019-04-06)
    Climate change is an issue which elicits low engagement, even among concerned segments of the public. While research suggests that the presentation of factual information (e.g., scientific consensus) can be persuasive to some audiences, there is also ...
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    Variable-Fidelity Simulation Models and Sparse Gradient Updates for Cost-Efficient Optimization of Compact Antenna Input Characteristics 
    Koziel, Slawomir; Pietrenko-Dabrowska, Anna (MDPI AG, 2019-04-15)
    Design of antennas for the Internet of Things (IoT) applications requires taking into account several performance figures, both electrical (e.g., impedance matching) and field (gain, radiation pattern), but also physical constraints, primarily concerning ...
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    Twenty-three unsolved problems in hydrology (UPH) – a community perspective 
    Blöschl, Günter; Bierkens, Marc F.P.; Chambel, Antonio; Cudennec, Christophe; Destouni, Georgia; Fiori, Aldo; Kirchner, James W.; McDonnell, Jeffrey J.; Savenije, Hubert H.G.; Sivapalan, Murugesu; Stumpp, Christine; Toth, Elena; Volpi, Elena; Carr, Gemma; Lupton, Claire; Salinas, Josè; Széles, Borbála; Viglione, Alberto; Aksoy, Hafzullah; Allen, Scott T.; Amin, Anam; Andréassian, Vazken; Arheimer, Berit; Aryal, Santosh K.; Baker, Victor; Bardsley, Earl; Barendrecht, Marlies H.; Bartosova, Alena; Batelaan, Okke; Berghuijs, Wouter R.; Beven, Keith; Blume, Theresa; Bogaard, Thom; Borges de Amorim, Pablo; Böttcher, Michael E.; Boulet, Gilles; Breinl, Korbinian; Brilly, Mitja; Brocca, Luca; Buytaert, Wouter; Castellarin, Attilio; Castelletti, Andrea; Chen, Xiaohong; Chen, Yangbo; Chen, Yuanfang; Chifflard, Peter; Claps, Pierluigi; Clark, Martyn P.; Collins, Adrian L.; Croke, Barry; Dathe, Annette; David, Paula C.; de Barros, Felipe P. J.; de Rooij, Gerrit; Di Baldassarre, Giuliano; Driscoll, Jessica M.; Duethmann, Doris; Dwivedi, Ravindra; Eris, Ebru; Farmer, William H.; Feiccabrino, James; Ferguson, Grant; Ferrari, Ennio; Ferraris, Stefano; Fersch, Benjamin; Finger, David C.; Foglia, Laura; Fowler, Keirnan; Gartsman, Boris; Gascoin, Simon; Gaume, Eric; Gelfan, Alexander; Geris, Josie; Gharari, Shervan; Gleeson, Tom; Glendell, Miriam; Gonzalez Bevacqua, Alena; González-Dugo, María P.; Grimaldi, Salvatore; Gupta, A. B.; Guse, Björn; Han, Dawei; Hannah, David; Harpold, Adrian; Haun, Stefan; Heal, Kate; Helfricht, Kay; Herrnegger, Mathew; Hipsey, Matthew; Hlaváčiková, Hana; Hohmann, Clara; Holko, Ladislav; Hopkinson, Christopher; Hrachowitz, Markus; Illangasekare, Tissa H.; Inam, Azhar; Innocente, Camyla; Istanbulluoglu, Erkan; Jarihani, Ben; Kalantari, Zahra; Kalvans, Andis; Khanal, Sonu; Khatami, Sina; Kiesel, Jens; Kirkby, Mike; Knoben, Wouter; Kochanek, Krzysztof; Kohnová, Silvia; Kolechkina, Alla; Krause, Stefan; Kreamer, David; Kreibich, Heidi; Kunstmann, Harald; Lange, Holger; Liberato, Margarida L. R.; Lindquist, Eric; Link, Timothy; Liu, Junguo; Loucks, Daniel Peter; Luce, Charles; Mahé, Gil; Makarieva, Olga; Malard, Julien; Mashtayeva, Shamshagul; Maskey, Shreedhar; Mas-Pla, Josep; Mavrova-Guirguinova, Maria; Mazzoleni, Maurizio; Mernild, Sebastian; Misstear, Bruce Dudley; Montanari, Alberto; Müller-Thomy, Hannes; Nabizadeh, Alireza; Nardi, Fernando; Neale, Christopher; Nesterova, Nataliia; Nurtaev, Bakhram; Odongo, Vincent O.; Panda, Subhabrata; Pande, Saket; Pang, Zhonghe; Papacharalampous, Georgia; Perrin, Charles; Pfister, Laurent; Pimentel, Rafael; Polo, María J.; Post, David; Prieto Sierra, Cristina; Ramos, Maria-Helena; Renner, Maik; Reynolds, José Eduardo; Ridolfi, Elena; Rigon, Riccardo; Riva, Monica; Robertson, David E.; Rosso, Renzo; Roy, Tirthankar; Sá, João H.M.; Salvadori, Gianfausto; Sandells, Mel; Schaefli, Bettina; Schumann, Andreas; Scolobig, Anna; Seibert, Jan; Servat, Eric; Shafiei, Mojtaba; Sharma, Ashish; Sidibe, Moussa; Sidle, Roy C.; Skaugen, Thomas; Smith, Hugh; Spiessl, Sabine M.; Stein, Lina; Steinsland, Ingelin; Strasser, Ulrich; Su, Bob; Szolgay, Jan; Tarboton, David; Tauro, Flavia; Thirel, Guillaume; Tian, Fuqiang; Tong, Rui; Tussupova, Kamshat; Tyralis, Hristos; Uijlenhoet, Remko; van Beek, Rens; van der Ent, Ruud J.; van der Ploeg, Martine; Van Loon, Anne F.; van Meerveld, Ilja; van Nooijen, Ronald; van Oel, Pieter R.; Vidal, Jean-Philippe; von Freyberg, Jana; Vorogushyn, Sergiy; Wachniew, Przemyslaw; Wade, Andrew J.; Ward, Philip; Westerberg, Ida K.; White, Christopher; Wood, Eric F.; Woods, Ross; Xu, Zongxue; Yilmaz, Koray K.; Zhang, Yongqiang (Informa UK Limited, 2019-07-02)
    This paper is the outcome of a community initiative to identify major unsolved scientific problems in hydrology motivated by a need for stronger harmonisation of research efforts. The procedure involved a public consultation through online media, ...
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    Sequence variants associating with urinary biomarkers 
    Benonisdottir, Stefania; Kristjansson, Ragnar P; Oddsson, Asmundur; Steinthorsdottir, Valgerdur; Mikaelsdottir, Evgenia; Kehr, Birte; Jensson, Brynjar O; Arnadottir, Gudny A; Sulem, Gerald; Sveinbjornsson, Gardar; Kristmundsdóttir, Snædís; Ívarsdóttir, Erna V.; Tragante, Vinicius; Gunnarsson, Bjarni; Runolfsdottir, Hrafnhildur Linnet; Arthur, Joseph G; Deaton, Aimee M; Eyjolfsson, Gudmundur I; Davidsson, Olafur B; Asselbergs, Folkert W; Hreidarsson, Astradur B; Rafnar, Thorunn; Thorleifsson, Gudmar; Edvardsson, Vidar; Sigurdsson, Gunnar; Helgadottir, Anna; Halldórsson, Bjarni; Masson, Gisli; Holm, Hilma; Önundarson, Páll Torfi; Indridason, Olafur S; Benediktsson, Rafn; Palsson, Runolfur; Gudbjartsson, Daniel F; Olafsson, Isleifur; Thorsteinsdottir, Unnur; sulem, patrick; Stefansson, Kari (Oxford University Press (OUP), 2018-11-24)
    Urine dipstick tests are widely used in routine medical care to diagnose kidney and urinary tract and metabolic diseases. Several environmental factors are known to affect the test results, whereas the effects of genetic diversity are largely unknown. ...
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    Refractometric Sensing with Periodic Nano-Indented Arrays: Effect of Structural Dimensions 
    Carney, Daniel; Svavarsson, Halldor; Hemmati, Hafez; Fannin, Alexander; Yoon, Jae; Magnusson, Robert (MDPI AG, 2019-02-21)
    Fabrication and sensor application of a simple plasmonic structure is described in this paper. The sensor element consists of nano-patterned gold film brought about from two-dimensional periodic photoresist templates created by holographic laser ...
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    Active and Passive Social Media Use and Symptoms of Anxiety and Depressed Mood Among Icelandic Adolescents 
    Thorisdottir, Ingibjorg; Sigurvinsdottir, Rannveig; Asgeirsdottir, Bryndis Bjork; Allegrante, John P.; Sigfusdottir, Inga (Mary Ann Liebert Inc, 2019-08)
    Adolescent use of social media platforms such as Facebook, Instagram, and Snapchat has increased dramatically over the last decade and now pervades their everyday social lives. Active and passive social media use may impact emotional health differently, ...
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    A comparative study of electrolyte concentration-symmetry and gate voltage effects on the heterogenous surface charge in a nanofluidic FET 
    Kateb, Movaffaq; Fathipour, Morteza; Kolahdouz, Mohammadreza (Reykjavik University, 2020)
    The present study aims to investigate utilizing field-effect for inducing heterogeneous surface charge and consequently changing the fluid flow in a solid-state nanochannel with converging-diverging periodicity. It is shown that the combination of ...
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    Improving the Efficiency of Pyrolysis and Increasing the Quality of Gas Production through Optimization of Prototype Systems 
    Fogarassy, Csaba; Toth, Laszlo; Czikkely, Marton; Finger, David C. (MDPI AG, 2019-12-15)
    Pyrolysis is a thermochemical process that consists of the degradation of organic polymers and biomass minerals in lignocellulose materials. At low pyrolysis temperature (300-400 degrees C), primarily carbon is produced during the reaction time. Rapid ...
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    Improved distributed algorithms for coloring interval graphs with application to multicoloring trees 
    Halldórsson, Magnús M.; Konrad, Christian (Elsevier BV, 2020-04)
    We give a distributed (1+eps)-approximation algorithm for the minimum vertex coloring problem on interval graphs, which runs in the LOCAL model and operates in O((1/eps) log* n) rounds. If nodes are aware of their interval representations, then the ...