Opin vísindi
Opin vísindi er varðveislusafn vísindaefnis og doktorsritgerða í opnum aðgangi á vegum íslenskra háskóla og Landsbókasafns Íslands - Háskólabókasafns.
Opinn aðgangur að rannsóknaniðurstöðum er í samræmi við 10. gr. laga nr. 3/2003 um opinberan stuðning við vísindarannsóknir sem og kröfur innlendra og erlendra rannsóknasjóða. Markmiðið með opnum aðgangi er að niðurstöður rannsókna séu aðgengilegar sem flestum óhindrað og án endurgjalds á rafrænu formi. Vistun í varðveislusafninu er varanleg og ætlað að tryggja aðgang að vísindaefni íslenskra háskóla í opnum aðgangi um ókomna tíð. Varðveislusafnið Opin vísindi er tengt við rannsóknagáttina IRIS og rannsóknaniðurstöður í opnum aðgangi sem eru skráðar í IRIS eru um leið vistaðar og gerðar aðgengilegar til framtíðar í varðveislusafninu. Með því að safna þessu efni saman í eitt safn verður aðgangur að því einfaldur og þægilegur fyrir alla sem vilja kynna sér það og geta þannig notið þess öfluga vísindastarfs sem fram fer í háskólum landsins.
Varðveislusafnið er OpenAIRE / OpenAIREplus samhæft og samrýmist kröfum sem gerðar eru um birtingu rannsóknaniðurstaðna úr verkefnum sem styrkt eru úr evrópsku rannsóknaáætlununum FP7 og H2020.
Varðveislusafnið notar opna hugbúnaðinn DSpace.
Opinn aðgangur að rannsóknaniðurstöðum er í samræmi við 10. gr. laga nr. 3/2003 um opinberan stuðning við vísindarannsóknir sem og kröfur innlendra og erlendra rannsóknasjóða. Markmiðið með opnum aðgangi er að niðurstöður rannsókna séu aðgengilegar sem flestum óhindrað og án endurgjalds á rafrænu formi. Vistun í varðveislusafninu er varanleg og ætlað að tryggja aðgang að vísindaefni íslenskra háskóla í opnum aðgangi um ókomna tíð. Varðveislusafnið Opin vísindi er tengt við rannsóknagáttina IRIS og rannsóknaniðurstöður í opnum aðgangi sem eru skráðar í IRIS eru um leið vistaðar og gerðar aðgengilegar til framtíðar í varðveislusafninu. Með því að safna þessu efni saman í eitt safn verður aðgangur að því einfaldur og þægilegur fyrir alla sem vilja kynna sér það og geta þannig notið þess öfluga vísindastarfs sem fram fer í háskólum landsins.
Varðveislusafnið er OpenAIRE / OpenAIREplus samhæft og samrýmist kröfum sem gerðar eru um birtingu rannsóknaniðurstaðna úr verkefnum sem styrkt eru úr evrópsku rannsóknaáætlununum FP7 og H2020.
Varðveislusafnið notar opna hugbúnaðinn DSpace.
Nýlega bætt við
Smartphone app-delivered Acceptance and Commitment Therapy (ACT) for post-traumatic stress disorder and gambling harm in veterans : A pilot feasibility study
(2025-10) Williams, Jess M.; Heath, Conor; Leightley, Daniel; Murphy, Dominic; Dymond, Simon; Department of Psychology
Gambling harm and post-traumatic stress disorder (PTSD) tend to be prevalent among veterans. Globally, help-seeking rates for gambling are low, and veterans may experience obstacles in accessing mental health support due to stigma. Digital health interventions may increase treatment uptake and improve outcomes for veterans. Here, we report findings from a pilot feasibility study of a novel smartphone application-based intervention, “ACT Vet”, based on Acceptance and Commitment Therapy (ACT) for veterans experiencing PTSD symptoms, gambling harm, or both. A 10-week, within-subjects design was employed with 24 veterans (21 men, 2 women, 1 undisclosed; Mage = 45.29 years; SD = 10.70). Outcome measures assessed PTSD symptoms, gambling severity, psychological flexibility, anxiety, alcohol use, suicidality, and loneliness. We also examined participants' quality of life and app usability and acceptability ratings. Findings demonstrated significant reductions in both PTSD and gambling symptoms across the intervention, with a corresponding increase in psychological flexibility. Alcohol use also decreased post-intervention. High usability scores suggest the app was well-received by participants. Overall, the sustained improvements post-intervention indicates the successful deployment of ACT-based methods in an app format. ACT Vet has potential scalability as a first-line digital intervention for PTSD and/or gambling harm.
Revisiting the playbook : Coaches’ opinions and current views of performance, development and load monitoring in highly-trained male youth basketball players
(2025-10) Lever, Jonathon R.; Murray, Andrew; Bartlett, Jonathan D.; Aurellado, Isabela; Duffield, Rob; Fullagar, Hugh H.K.; Department of Sport Science
This study examines basketball coaches’ perceptions and current views on performance, player development, and training load monitoring in highly trained male youth academy basketball players. Through semi-structured interviews with nine coaches, we explore their philosophies on player performance, key indicators of success, and the integration of training load monitoring into their coaching practices. Reflexive thematic analysis identified 37 lower-order themes and 14 higher-order themes, which were categorized into four dimensions: Holistic Preparation, Physical and Athletic Performance, Measurement of Physical Output, and Integration of Data. Coaches emphasized psychological, skill-based, and physical aspects of player development, particularly lateral quickness, explosive movements, and coachability. While some coaches value data-informed approaches to optimize training and mitigate injury risk, others remain skeptical about its practical impact. By investigating how coaches perceive and apply performance monitoring, this study provides insights into bridging subjective coaching expertise with objective data analysis. The findings offer practical applications for sport scientists and coaching staff seeking to enhance developmental pathways for highly trained youth basketball players.
Longitudinal investigation of sleep and circadian rest-activity rhythms in non-small cell lung cancer patients during immunotherapy and associations with fatigue, depression, and perceived stress
(2025-10) Strøm, Louise; Zachariae, Robert; Wu, Lisa M.; Meldgaard, Peter; Ancoli-Israel, Sonia; Lekander, Mats; Mroczek, Daniel; Amidi, Ali; Department of Psychology
Background: Patients with advanced non-small cell lung cancer (NSCLC) face poor prognosis. However, new therapies like immune checkpoint inhibitors (ICIs) have improved survival. Nevertheless, ICIs act through immune activation – a proposed underlying mechanism of frequently reported symptoms such as sleep and circadian disturbances. The objective of this study was to longitudinally investigate sleep and circadian rest-activity rhythms and associations with psychological symptoms in NSCLC during ICI treatment. Methods: Newly diagnosed NSCLC patients were included in this prospective study, assessing insomnia severity, total sleep time, circadian rest-activity rhythms, and psychological symptoms (fatigue, depression, and stress) during the first five months of ICI treatment, using validated questionnaires, sleep diaries and actigraphy. Results: Forty-nine patients were included. Prior to treatment, patients slept on average 5.8 hours/night and 49 % reported clinical levels of insomnia. Spontaneous improvements in insomnia severity and total sleep time were observed, along with marginal but non-significant improvements in circadian rest-activity rhythm robustness. Insomnia severity was significantly associated with higher levels of fatigue (p = .004), depression (p = .007), and perceived stress (p = .033). Moreover, lower circadian rest-activity robustness was associated with more fatigue (p = .021). At baseline, mean levels of fatigue, depression, and perceived stress were below clinical levels and declined further over time. Conclusion: Sleep disturbances, circadian disruption, and psychological symptom burden in NSCLC patients were greatest prior to and shortly after initiation of ICI treatment, with gradual improvement over the first five months. However, inter-individual differences in sleep and circadian disturbances were evident and linked to psychological symptoms.
Investigating Aberrant Salience in Autism Spectrum Disorder and Psychosis Risk : A Cross-Group Analysis
(2025-10) Fiori Nastro, Federico; Pelle, Martina; Clemente, Alice; Corinto, Fernando; Prosperi Porta, Davide; Sonnino, Yael; Gelormini, Carmine; Di Lorenzo, Giorgio; Ribolsi, Michele; Department of Engineering
Aim: This study investigates the expression of aberrant salience (AS) in individuals with autism spectrum disorder (ASD), those at clinical high risk for psychosis (CHR-P) and help-seeking individuals without formal diagnoses. Methods: Ninety-nine participants, 44 males and 55 females (age range 17–39 years), met the inclusion criteria of absence of major neurological disorders, intellectual disabilities or substance-related conditions. None were receiving antipsychotic treatment. Based on clinical evaluations, participants were categorised into three groups: ASD (n = 23), Attenuated Psychosis Syndrome (APS) (n = 27) and help-seekers (n = 49). The Aberrant Salience Inventory (ASI) was administered. Results: Significant differences were observed in ASI total and subscale scores among groups. Post hoc analyses showed significantly higher ASI scores in the ASD and APS groups compared to help-seekers, but no significant differences between ASD and APS. Conclusions: These findings suggest an overlap in AS processing between ASD and psychosis-spectrum conditions, supporting AS as a transdiagnostic construct.
Dynamic membership management for a permissioned blockchain
(2025-10) Hjartarson, Hafsteinn; Thrastarson, Fjölnir; Islind, Anna Sigridur; Hjálmtýsson, Gísli; Department of Computer Science
Permissioned blockchains have gained prominence as a means of decentralizing trust while retaining controlled access, particularly in enterprise settings and regulated peer-to-peer environments. These systems offer advantages in scalability, performance, and security; however, challenges persist in effectively managing membership and its interaction with consensus protocols. Ethereum’s transition to Proof-of-Stake has also been a transition to managed membership, where validators are actively monitored and penalized for non-performance. This paper examines the dynamic tension between membership management and consensus protocols in permissioned blockchains, as well as the benefits of active management in improving overall system performance. In this paper, we propose a framework for dynamic membership management that includes actively admitting, monitoring, and ejecting members. Our approach decouples membership management from the underlying blockchain construction process. Our simulations confirm the potential benefits of managed membership, in part to facilitate lightweight mechanisms for improved performance and reliability. Our findings suggest that dynamic membership management is a critical area of study with significant implications for the future design of permissioned blockchains. Our contributions provide a conceptual foundation for designing dynamic membership protocols in permissioned blockchains, filling a gap in the literature and offering practical solutions to enhance blockchain performance in controlled environments.
Flokkar í Opnum vísindum
Veldu flokk til að skoða.
- University of Iceland
- University of Akureyri
- Bifröst University
- Hólar University College
- IRIS
- Agricultural University of Iceland
- National and University Library of Iceland
- Iceland University of the Arts