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
Psychological Intervention for Patients with Biopsychosocial Late Effects Following Surgery for Colorectal Cancer with Peritoneal Metastases—A Feasibility Study
(2025-04) Balachandran, Rogini; Thaysen, Henriette Vind; Christensen, Peter; Nissen, Eva Rames; O’Toole, Mia Skytte; Knutzen, Sofie Møgelberg; Buskbjerg, Cecilie Dorthea Rask; Wu, Lisa Maria; Tauber, Nina; Amidi, Ali; Danielsen, Josefine Tingdal Taube; Zachariae, Robert; Iversen, Lene Hjerrild; Department of Psychology
Background: Up to 80% of patients experience late effects (LE) one year after surgery for peritoneal metastases (PM) from colorectal cancer (CRC). We tested the feasibility and outcome of a treatment strategy to address LEs. Methods: During January 2021–May 2023, patients who had undergone surgery for CRC-PM in Denmark were screened for biopsychosocial LEs (anxiety, depression, fear of cancer recurrence, insomnia, cognitive impairment, pain, fatigue). Patients scoring according to clinical cut-offs were referred to a Multi-Disciplinary Team conference (MDT). The patients, surgeon(s), nurse(s), and psychologists participated in the MDT, identified key concerns and proposed a personalized intervention. Pre- and post-intervention, patients completed a “Measure Yourself Concerns and Wellbeing” (MYCaW) questionnaire, rating the two most distressing LEs and general wellbeing on a 7-point Likert scale. Results: Of 28 eligible patients, 13 (59 years (mean), 85% women) accepted referral, participated in the MDT, and were offered a personalized intervention. The intervention was completed by 11 patients. Improvement in MYCaW score was observed 1 month postintervention for all three items: (1) the primary LE (p = 0.003, Hedges’s g 1.54), (2) the secondary LE (p < 0.001, Hedges’s g 1.65), and (3) general wellbeing (p = 0.005, Hedges’s g 1.09). This improvement was sustained 6 months postintervention. The 15 non-participants were, in general, older (66 years (mean), men 73%). Conclusions: Screening for LEs and conducting an MDT can provide a personalized intervention plan, which patients are able to complete and may benefit from.
Cognitive impairment in patients with melanoma before adjuvant immune checkpoint inhibitor therapy and associations with brain gray matter, catechol-O-methyltransferase genotype, and psychological factors
(2025-01-15) Danielsen, Josefine T.; Zachariae, Robert; Schmidt, Henrik; Kallehauge, Jesper F.; Thomadsen, Julie K.; Wefel, Jeffrey S.; Wu, Lisa M.; Amidi, Ali; Department of Psychology
Background: Cancer-related cognitive impairment (CRCI) is a significant concern in patients with cancer but understanding its prevalence and risk factors in patients with malignant melanoma (MMPs) remains limited. This study explores CRCI via a multifaceted approach integrating neurobiological, genetic, and psychological assessments. Methods: Cognitive functioning across multiple domains was assessed via neuropsychological tests in 47 MMPs before adjuvant immune checkpoint inhibitor therapy, compared with 53 matched healthy controls (HCs). Self-reported cognitive complaints, brain gray matter (GM) properties, catechol-O-methyltransferase (COMT) genotype, and psychological and behavioral factors were evaluated. Between-group differences were analyzed with t-tests and χ2 tests, and associations were explored with correlation analyses. GM properties were assessed in a subset of 23 MMPs and 47 HCs. Results: MMPs exhibited significantly lower cognitive functioning across multiple tests (all p <.05), with a high CRCI prevalence (68.1% vs. 26.4% in HCs). MMPs reported higher fatigue, anxiety, and insomnia severity and poorer sleep quality and quality of life (all p <.01). Self-reported cognitive complaints in MMPs were associated with some cognitive test scores (all p <.05), fatigue (p <.001), and anxiety (p =.045). GM analyses revealed a smaller left cuneus volume in MMPs and significant associations between MMPs' processing speed and cortical thickness (right precentral and left inferior parietal regions) and between delayed verbal memory and right postcentral GM volume (all p <.01). Conclusions: These findings underscore the need for comprehensive assessments in MMPs to better understand and address CRCI. A multifaceted approach would provide valuable insights that could inform future interventions and improve patient outcomes and quality of life.
SUSTAINABILITY REPORTS, CORPORATE GOVERNANCE, AND ORGANIZATIONAL UNITS
(2026) Claessen, Arni; Sigurjonsson, Throstur Olaf; Wendt, Stefan; Department of Business and Economics
This study examines how Icelandic companies disclose sustainability-related governance practices and evaluates the impact of the new Corporate Sustainability Reporting Directive (CSRD) and the European Sustainability Reporting Standards (ESRS) (European Commission, 2025) on future disclosure practices. Building on Claessen’s (2023) approach and using qualitative methodology, the research combines document analysis of sustainability reports from ten leading Icelandic firms with semi-structured interviews with company representatives. The study finds that current governance disclosures cover only 20–30 percent of ESRS minimum requirements. Key challenges include limited knowledge of ESRS among board members and consultants, weak communication structures, insufficient metrics and verification procedures, and resource constraints. The recent changes introduced by the 2025 Omnibus Act (European Council, 2025) further complicate compliance, intensifying the urgency for firms to adapt. The findings underscore the need for Icelandic companies to invest in training, enhance internal governance systems, and build robust reporting frameworks to meet regulatory demands. Without such efforts, companies risk legal and reputational repercussions. This research provides timely, country-specific insights into governance disclosure gaps and offers practical recommendations for aligning with the European Union’s (EU’s) evolving sustainability reporting landscape.
Erratum to : I Keep my Problems to Myself: Negative Social Network Orientation, Social Resources, and Health-Related Quality of Life in Cancer Survivors
(2017-12-01) Rini, Christine; Symes, Yael; Campo, Rebecca A.; Wu, Lisa M.; Austin, Jane; Department of Psychology
Interplay between Aharonov-Bohm and Altshuler-Aronov-Spivak oscillations in phase-pure GaAs/InAs core/shell nanowires of different lengths
(2026-10) Basarić, Farah; Wang, Kaiwen; Dumitru, Tudor Gabriel; Manolescu, Andrei; Alvarado Cesar, Francisco; Sanchez, Ana M.; Krause, Christoph; Grützmacher, Detlev; Pawlis, Alexander; Schäpers, Thomas; Department of Engineering
In GaAs/InAs core/shell nanowires, comprising a tubular conducting shell, interference phenomena observed under an axial field and originating from closed-loop states encircling the insulating core provide an ideal platform for superconducting quantum devices that utilize effects such as Aharonov-Bohm–type or Altshuler-Aronov-Spivak–type conductance oscillations. Both effects are different in nature with respect to phase rigidity because of interference of non-time-reversed or time-reversed paths, respectively. Since their occurrence is largely governed by averaging effects, which depend on sample dimensions and the transport regime, we present a systematic study of flux-periodic oscillations of phase-pure zinc-blende GaAs/InAs core/shell nanowires as a function of gate voltage for samples with different contact separation lengths. Our analysis shows that with increasing contact separation length, averaging effects result in gradual reduction of h/e-periodic Aharonov-Bohm–type oscillations, while relative to that the h/2e-periodic Altshuler-Aronov-Spivak oscillations and its h/4e-periodic higher harmonics are enhanced. The additional phase rigidity seen in the h/3e-periodic oscillations is attributed to phase rigidity propagating from the neighboring lower harmonics. Our tight-binding transport simulations on nanowires of different lengths which contain only a few scattering centers confirm the experimental observations regarding the different harmonics and their phase rigidity. Together, our experimental and simulation findings indicate quasiballistic transport with persistent Aharonov-Bohm–type and phase-rigid Altshuler-Aronov-Spivak–type oscillations despite few scattering centers.
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