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Search Results (1,031)

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34 pages, 9378 KiB  
Article
Contribution of Glazed Additions as Passive Elements of the Reduction in Energy Consumption in Detached Houses
by Hristina Krstić, Dušan Ranđelović, Vladan Jovanović, Marko Mančić and Branislava Stoiljković
Buildings 2025, 15(15), 2715; https://doi.org/10.3390/buildings15152715 - 1 Aug 2025
Viewed by 125
Abstract
If implemented properly in architectural design, passive measures can contribute to achieving the desired comfort in a building while reducing its energy consumption. Glazed additions in the form of sunspaces or greenhouses can influence the improvement of building energy efficiency and, at the [...] Read more.
If implemented properly in architectural design, passive measures can contribute to achieving the desired comfort in a building while reducing its energy consumption. Glazed additions in the form of sunspaces or greenhouses can influence the improvement of building energy efficiency and, at the same time, create appealing and pleasant building extensions. Through energy simulations performed using EnergyPlus software, this study aims to analyze the potential contribution of glazed additions to a detached house to reducing energy consumption and creating additional space for living. Research was performed as a case study at the following locations: Niš (Serbia), Berlin (Germany), and Tromsø (Norway). For the purposes of this study, five models (M0–M4) were developed and subjected to analysis across two different scenarios. The results of the conducted research showed that the integration of glazed elements can significantly contribute to energy savings: maximum total annual savings regarding heating and cooling go from 21% for Tromsø, up to 32% for Berlin and 40% for Niš, depending on whether the building to which the glazed element(s) is/are attached is insulated or not and the number and the position of glazed elements. Although glazed additions can create a pleasant microclimate around the house, the overheating observed in the study indicates that proper ventilation and shading are mandatory, especially in more southern locations. Full article
(This article belongs to the Section Architectural Design, Urban Science, and Real Estate)
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23 pages, 480 KiB  
Article
Executive Functions and Reading Skills in Low-Risk Preterm Children
by Miguel Pérez-Pereira, Constantino Arce and Anastasiia Ogneva
Children 2025, 12(8), 1011; https://doi.org/10.3390/children12081011 - 31 Jul 2025
Viewed by 226
Abstract
Background/Objectives. Previous research with extremely and very preterm children indicates that these children obtain significantly lower results in executive functions (EFs) and in reading skills than full-term (FT) children. The comparison results do not seem to be so clear when other PT children [...] Read more.
Background/Objectives. Previous research with extremely and very preterm children indicates that these children obtain significantly lower results in executive functions (EFs) and in reading skills than full-term (FT) children. The comparison results do not seem to be so clear when other PT children in lower-risk conditions are studied. Many studies with typically developing and preterm (PT) children indicate that reading ability is determined, in part, by EFs. Therefore, the study of EFs and reading and their relationships in low-risk PT children is pertinent. Methods. In the present study, 111 PT children, classified into three groups with different ranges of gestational age (GA), and one group of 34 FT children participated in a longitudinal study, carried out from 4 to 9 years of age. The results obtained from the four groups in different EFs measured at 4, 5, and 8 years of age, and in reading skills at 9 years of age were compared. The possible effects of EFs on reading skills were studied through multiple linear regression analyses. Results. The results obtained indicate that no significant difference was found between FT children and any of the GA groups of PT children, either in EFs or reading skills. The effect of EFs on reading skills was low to moderate. Verbal and non-verbal working memory had a positive significant effect on decoding skills (letter names, same–different, and word reading), but not on reading comprehension processes. Higher-order EFs (cognitive flexibility and planning), as well as inhibitory control, showed positive effects on reading comprehension skills. The effects of the different EFs varied depending on the reading process. Conclusions. In conclusion, low-risk PT children do not differ from FT children in their competence in EFs or reading skills. There are long-lasting effects of EFs, measured several years before, on reading skills measured at 9 years of age. Full article
(This article belongs to the Special Issue Advances in Neurodevelopmental Outcomes for Preterm Infants)
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15 pages, 1843 KiB  
Article
Genotype-Specific HPV mRNA Triage Improves CIN2+ Detection Efficiency Compared to Cytology: A Population-Based Study of HPV DNA-Positive Women
by S. Sørbye, B. M. Falang, M. Antonsen and E. Mortensen
Pathogens 2025, 14(8), 749; https://doi.org/10.3390/pathogens14080749 - 30 Jul 2025
Viewed by 694
Abstract
Background: Effective triage of women testing positive for high-risk HPV DNA is essential to reduce unnecessary colposcopies while preserving cancer prevention. Cytology, the current standard, has limited specificity and reproducibility. The genotype-specific 7-type HPV E6/E7 mRNA test (PreTect HPV-Proofer’7), targeting HPV types 16, [...] Read more.
Background: Effective triage of women testing positive for high-risk HPV DNA is essential to reduce unnecessary colposcopies while preserving cancer prevention. Cytology, the current standard, has limited specificity and reproducibility. The genotype-specific 7-type HPV E6/E7 mRNA test (PreTect HPV-Proofer’7), targeting HPV types 16, 18, 31, 33, 45, 52, and 58, detects transcriptionally active infections and may enhance risk stratification. Methods: Between 2019 and 2023, 34,721 women aged 25–69 underwent primary HPV DNA screening with the Cobas 4800 assay at the University Hospital of North Norway, within the national screening program. Of these, 1896 HPV DNA-positive women were triaged with liquid-based cytology with atypical squamous cells of undetermined significance or worse (≥ASC-US) and the 7-type HPV mRNA test. Histological outcomes were followed through October 2024. Diagnostic performance for CIN2+ was evaluated overall and by genotype. Results: CIN2+ prevalence was 13.3%. The mRNA test reduced test positivity from 50.3% to 33.4% while maintaining comparable sensitivity (70.6% vs. 72.2%) and improving specificity (72.3% vs. 53.0%) and PPV (28.1% vs. 19.1%). Genotype-specific PPVs were highest for HPV16 mRNA (47.7%), followed by HPV33 (39.2%) and HPV31 (32.2%), all exceeding corresponding DNA-based estimates. Conclusion: Genotype-specific HPV mRNA triage offers superior risk discrimination compared to cytology, supporting more targeted, efficient, and accessible cervical cancer screening. Full article
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14 pages, 1859 KiB  
Article
Into the Blue: An ERC Synergy Grant Resolving Past Arctic Greenhouse Climate States
by Jochen Knies, Gerrit Lohmann, Stijn De Schepper, Monica Winsborrow, Juliane Müller, Mohamed M. Ezat and Petra M. Langebroek
Challenges 2025, 16(3), 36; https://doi.org/10.3390/challe16030036 - 30 Jul 2025
Viewed by 240
Abstract
The Arctic Ocean is turning blue. Abrupt Arctic warming and amplification is driving rapid sea ice decline and irreversible deglaciation of Greenland. The already emerging, substantial consequences for the planet and society are intensifying and yet, model-based projections lack validatory consensus. To date, [...] Read more.
The Arctic Ocean is turning blue. Abrupt Arctic warming and amplification is driving rapid sea ice decline and irreversible deglaciation of Greenland. The already emerging, substantial consequences for the planet and society are intensifying and yet, model-based projections lack validatory consensus. To date, we cannot anticipate how a blue Arctic will respond to and amplify an increasingly warmer future climate, nor how it will impact the wider planet and society. Climate projections are inconclusive as we critically lack key Arctic geological archives that preserved the answers. This “Arctic Challenge” of global significance can only be addressed by investigating the processes, consequences, and impacts of past “greenhouse” (warmer-than-present) climate states. To address this challenge, the ERC Synergy Grant project Into the Blue (i2B) is undertaking a program of research focused on retrieving new Arctic geological archives of past warmth and key breakthroughs in climate model performance to deliver a ground-breaking, synergistic framework to answer the central question: “Why and what were the global ramifications of a “blue” (ice-free) Arctic during past warmer-than-present climates?” Here, we present the proposed research plan that will be conducted as part of this program. Into the Blue will quantify cryosphere (sea ice and land ice) change in a warmer world that will form the scientific basis for understanding the dynamics of Arctic cryosphere and ocean changes to enable the quantitative assessment of the impact of Arctic change on ocean biosphere, climate extremes, and society that will underpin future cryosphere-inclusive IPCC assessments. Full article
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12 pages, 474 KiB  
Article
The Role of Gubernatorial Affiliation, Risk Perception, and Trust in COVID-19 Vaccine Hesitancy in the United States
by Ammina Kothari, Stephanie A. Godleski and Gerit Pfuhl
COVID 2025, 5(8), 118; https://doi.org/10.3390/covid5080118 - 28 Jul 2025
Viewed by 151
Abstract
Background/Objectives: Vaccine hesitancy is becoming an increasing concern, leading to preventable outbreaks of infectious diseases. During the COVID-19 pandemic, the United States served as an intriguing case study for exploring how risk perception and trust in health authorities, including scientists, are influenced by [...] Read more.
Background/Objectives: Vaccine hesitancy is becoming an increasing concern, leading to preventable outbreaks of infectious diseases. During the COVID-19 pandemic, the United States served as an intriguing case study for exploring how risk perception and trust in health authorities, including scientists, are influenced by government policies and how these factors affect vaccine hesitancy. Methods: We conducted a secondary analysis using the MIT COVID-19 Survey dataset to investigate whether risk perception and trust differ between states governed by Democratic or Republican governors. Results: Our analysis (n = 6119) found that participants did not vary significantly by state political affiliation in terms of their sociodemographic factors (such as age, gender, self-rated health, education, and whether they live in a city, town, or rural area), their perceived risk for the community, or their ability to control whether they become infected. However, there was a difference in the perceived risk of infection, which was higher in states governed by Republicans. Trust also varied by gubernatorial affiliation, with higher levels of trust reported among residents of Democratic-leaning states. We also found a strong mediation effect of trust on vaccine hesitancy, but this was not the case for risk perception. Conclusion: Therefore, it appears that vaccine acceptance relies on trust in health authorities, which is influenced by governmental policies. State officials should work with local health officials to build trust and increase timely responses to public health crises. Full article
(This article belongs to the Section COVID Public Health and Epidemiology)
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4 pages, 164 KiB  
Editorial
Recombinant DNA the Bio-Revolution, Between Promise, Hurdles, and Achievements
by Mohamed Raafat El-Gewely
Int. J. Mol. Sci. 2025, 26(14), 6611; https://doi.org/10.3390/ijms26146611 - 10 Jul 2025
Viewed by 239
Abstract
Not too long after the discovery of restriction enzymes, by Warner Arbor group in 1962 and 1963 [...] Full article
(This article belongs to the Special Issue Recombinant Proteins, Protein Folding and Drug Discovery)
14 pages, 236 KiB  
Article
“Here Comes the Teacher”: Navigating the Complexities of Being a Teacher in Rural Finland
by Unn-Doris K. Bæck and Outi Autti
Educ. Sci. 2025, 15(7), 880; https://doi.org/10.3390/educsci15070880 - 10 Jul 2025
Viewed by 989
Abstract
This study examines the complexities faced by teachers in rural Finland, focusing on tensions between professional roles and social lives within tight-knit communities. This research addresses the challenges of maintaining well-qualified teaching staff in rural schools. The purpose of the study is understanding [...] Read more.
This study examines the complexities faced by teachers in rural Finland, focusing on tensions between professional roles and social lives within tight-knit communities. This research addresses the challenges of maintaining well-qualified teaching staff in rural schools. The purpose of the study is understanding the experiences of rural teachers and the challenges they face, including high visibility, community expectations, and blurred boundaries between personal and professional lives. The study uses a qualitative research design, employing in-depth interviews with 21 teachers across two rural locations in Northern Finland. The interviews focused on work experiences, roles, and reflections on the local educational context. The findings highlight that rural teachers experience a blurring of professional and social roles, leading to feelings of being constantly “on the job” and a lack of privacy. Community expectations often dictate their behavior outside of school. The study also reveals divisions within the teaching staff between local and commuting teachers. The study concludes that the cultural narrative of being a teacher in rural contexts includes traditional expectations of teachers, clashing with modern notions of teaching as a profession. The study emphasizes the importance of preparing teachers to be community-ready, acknowledging the challenges of rural teaching. Full article
(This article belongs to the Special Issue Practice and Policy: Rural and Urban Education Experiences)
19 pages, 22827 KiB  
Article
Numerical Weather Modelling and Large Eddy Simulations of Strong-Wind Events in Coastal Mountainous Terrain
by Yngve Birkelund
Appl. Sci. 2025, 15(14), 7683; https://doi.org/10.3390/app15147683 - 9 Jul 2025
Viewed by 254
Abstract
This study investigates high-resolution numerical weather modelling and large eddy simulations (LESs) for wind resource assessment in complex coastal mountainous terrain. The main purpose is to investigate strong-wind events, where earlier research indicates that high wind speeds are underestimated. Using the Weather Research [...] Read more.
This study investigates high-resolution numerical weather modelling and large eddy simulations (LESs) for wind resource assessment in complex coastal mountainous terrain. The main purpose is to investigate strong-wind events, where earlier research indicates that high wind speeds are underestimated. Using the Weather Research and Forecasting model (WRF), simulations were conducted for the Fakken wind power plant in northern Norway, a region characterised by steep mountains, fjords, and challenging wind patterns. The study evaluates the impact of increasing model resolution, from mesoscale to LESs, on wind speed and power production estimates. Results show that higher-resolution models improve the representation of terrain features, leading to better estimations of wind speed and direction, particularly during strong-wind events such as the Ylva storm in 2017. The LES model demonstrated the ability to capture high-wind events, including localised speed-ups and lee-side amplification, which is critical for accurate wind speed modelling. Comparison with power production data shows the potential of WRF LESs to optimise wind farm operations in complex terrains. Full article
(This article belongs to the Section Energy Science and Technology)
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24 pages, 3242 KiB  
Article
Integrating Clinical and Transcriptomic Profiles Associated with Vitamin D to Enhance Disease-Free Survival in Cervical Cancer Recurrence Using the CatBoost Algorithm
by Geeitha Senthilkumar, Renuka Pitchaimuthu, Seshathiri Dhanasekaran and Prabu Sankar Panneerselvam
Diagnostics 2025, 15(13), 1579; https://doi.org/10.3390/diagnostics15131579 - 21 Jun 2025
Viewed by 577
Abstract
Background/Objectives: Cervical cancer is a leading cancer-related cause of death among women, with recurrence being a serious clinical issue. Recent evidence demonstrates that long non-coding RNAs (lncRNAs) affect cancer recurrence. This research investigates vitamin D’s regulatory actions in the recurrence of cervical [...] Read more.
Background/Objectives: Cervical cancer is a leading cancer-related cause of death among women, with recurrence being a serious clinical issue. Recent evidence demonstrates that long non-coding RNAs (lncRNAs) affect cancer recurrence. This research investigates vitamin D’s regulatory actions in the recurrence of cervical cancer, centering on the involvement of lncRNA. Clinical data on 738 patients shows that greater serum vitamin D levels are linked to reduced recurrence rates and enhanced disease-free survival (DFS). Methods: A transcriptomic analysis of CaSki cervical cancer cells using data from the GEO dataset GSE267715 identified that vitamin D controls genes that prevent cervical cancer recurrence. Machine learning predictors CatBoost, LightGBM, Extra Trees, and Logistic Regression and feature selection methods such as ANOVA F-test, mutual information, Chi-squared test, and Recursive Feature Elimination (RFE) are used to identify predictors of recurrence, evaluating model performance using accuracy, precision, recall, ROC AUC, confusion matrices, and ROC curves. Result: CatBoost performs the best overall, producing an accuracy of 95.27%. CatBoost provided an ROC AUC of 0.9930, a precision of 0.9296, and a recall of 0.9706, and this implies a significant trade-off between the ability to detect metastatic cases correctly. Conclusions: These data identify the therapeutic potential of vitamin D as a regulatory compound and lncRNA as a potential therapeutic target in the recurrence of cervical cancer. Full article
(This article belongs to the Section Machine Learning and Artificial Intelligence in Diagnostics)
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15 pages, 1085 KiB  
Article
Road Weather Forecasts in Norway with the METRo Model
by Fabio A. A. Andrade, Torge Lorenz, Marcos Moura, Thomas Spengler, Manoel Feliciano and Stephanie Mayer
Meteorology 2025, 4(2), 16; https://doi.org/10.3390/meteorology4020016 - 17 Jun 2025
Viewed by 698
Abstract
We present a model evaluation of road weather forecasts in Norway with the METRo model in a quasi-operational setting. The road weather forecasts are initialized with measurements made by road weather stations and driven by mesoscale weather forecast data from the Norwegian Meteorological [...] Read more.
We present a model evaluation of road weather forecasts in Norway with the METRo model in a quasi-operational setting. The road weather forecasts are initialized with measurements made by road weather stations and driven by mesoscale weather forecast data from the Norwegian Meteorological Institute. One important source of hazardous driving conditions in Norway are freezing road-surface temperatures. We quantify the skill of our model setup to predict such conditions by computing the hit rates and false-alarm rates for incidences of freezing temperatures, relative to the climatological rates of occurrence. The METRo forecasts consistently add skill in wintertime and the crucial transitional seasons of spring and fall. Our study illustrates a successful proof-of-concept for novel, operational road weather forecasts in Norway, that could easily be realized with an open-source prediction model and readily available input data. Full article
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17 pages, 471 KiB  
Article
Health-Related Quality of Life and Unmet Healthcare Needs in the First Year Following Moderate-to-Severe Traumatic Injuries—An Observational Study
by Joanna N. Selj, Paul B. Perrin, Solveig L. Hauger, Cecilie Røe, Håkon Ø. Moksnes, Christoph Schäfer, Vilde M. Danielsen, Torgeir Hellstrøm, Nada Andelic and Mari S. Rasmussen
J. Clin. Med. 2025, 14(12), 4213; https://doi.org/10.3390/jcm14124213 - 13 Jun 2025
Viewed by 1221
Abstract
Background: Traumatic injuries often lead to long-lasting impairments and complex rehabilitation needs. Trauma patients report lower health-related quality of life (HRQoL) and increased needs for healthcare and social support. This study aimed to describe HRQoL trajectories in a Norwegian cohort with moderate-to-severe trauma [...] Read more.
Background: Traumatic injuries often lead to long-lasting impairments and complex rehabilitation needs. Trauma patients report lower health-related quality of life (HRQoL) and increased needs for healthcare and social support. This study aimed to describe HRQoL trajectories in a Norwegian cohort with moderate-to-severe trauma over 12 months and assess the relationship between unmet needs and HRQoL. Methods: A multicenter prospective cohort study with follow-up at six and twelve months post-injury included adults aged 18+ with a New Injury Severity Score (NISS) > 9 and a minimum hospital stay of two days. HRQoL was assessed using the EQ-5D-5L. Needs and unmet needs were evaluated using the Needs and Provision Complexity Scale. Hierarchical linear modeling (HLM) examined predictors of HRQoL trajectories. Results: Of 538 participants, 83% were followed up at six and/or twelve months. Mean age was 52 years, falls were the most common cause of injury (44%), and 76% had a severe injury (NISS > 15). HRQoL remained stable, except for improvements in usual activities and anxiety-depression domains. HLM showed that older age (b = −2.698), longer hospital stay (b = −4.108), and unmet healthcare (b = −1.094) and social support needs (b = −3.132) were associated with worse HRQoL over time. Unmet personal care needs were linked to improved HRQoL (b = 2.654). The only significant predictor*time interaction was between unmet healthcare needs and overall HRQoL. Conclusions: HRQoL largely remained stable, with improvements in some domains. Unmet healthcare needs predicted a decline in HRQoL, highlighting the importance of timely support and targeted interventions from health professionals. Full article
(This article belongs to the Section Mental Health)
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11 pages, 989 KiB  
Editorial
Natural Ice/Snow and Humans: From Mountain to Sea
by Zhijun Li, Li Zhou, Sasan Tavakoli and Ove Tobias Gudmestad
Water 2025, 17(12), 1754; https://doi.org/10.3390/w17121754 - 11 Jun 2025
Viewed by 351
Abstract
The cryosphere constitutes a vital component of the Earth’s system [...] Full article
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19 pages, 1626 KiB  
Article
Association Between Dietary Intake and Blood Concentrations of One-Carbon-Metabolism-Related Nutrients in European Prospective Investigation into Cancer and Nutrition
by Jin Young Park, Heleen Van Puyvelde, Lea Regazzetti, Joanna L. Clasen, Alicia K. Heath, Simone Eussen, Per Magne Ueland, Mattias Johansson, Carine Biessy, Raul Zamora-Ros, José María Huerta, Maria-Jose Sánchez, Marga Ocke, Matthias B. Schulze, Catarina Schiborn, Tonje Bjørndal Braaten, Guri Skeie, Carlotta Sacerdote, Jesús Castilla, Therese Karlsson, Ingegerd Johansson, Cecilie Kyrø, Anne Tjønneland, Tammy Y. N. Tong, Verena Katzke, Rashmita Bajracharya, Cristina Lasheras, Øivind Midttun, Stein Emil Vollset, Paolo Vineis, Giovanna Masala, Pilar Amiano, Rosario Tumino, Ivan Baldassari, Elisabete Weiderpass, Elio Riboli, Marc J. Gunter, Heinz Freisling, Sabina Rinaldi, David C. Muller, Inge Huybrechts and Pietro Ferrariadd Show full author list remove Hide full author list
Nutrients 2025, 17(12), 1970; https://doi.org/10.3390/nu17121970 - 10 Jun 2025
Viewed by 848
Abstract
Background/Objectives: We examined the association between dietary intake and blood concentrations of one-carbon metabolism (OCM)-related nutrients in the European Prospective Investigation into Cancer and Nutrition (EPIC). Methods: Blood concentrations and dietary intake of the vitamins riboflavin (B2), Pyridoxal 5′-phosphate (PLP and B6), folate [...] Read more.
Background/Objectives: We examined the association between dietary intake and blood concentrations of one-carbon metabolism (OCM)-related nutrients in the European Prospective Investigation into Cancer and Nutrition (EPIC). Methods: Blood concentrations and dietary intake of the vitamins riboflavin (B2), Pyridoxal 5′-phosphate (PLP and B6), folate (B9), B12, and methionine, concentrations of homocysteine, and dietary intake of betaine, choline, and cysteine were pooled from 16,267 participants in nine EPIC nested case–control studies. Correlation analyses between dietary intakes and blood concentrations were carried out. Principal component (PC) analysis identified latent factors in the two sets of measurements. Results: Pearson correlations between dietary intakes and blood concentrations ranged from 0.08 for methionine to 0.12 for vitamin B2, 0.15 for vitamin B12, 0.17 for vitamin B6, and 0.19 for folate. Individual dietary intakes showed higher correlations (ranging from −0.14 to 0.82) compared to individual blood concentrations (from −0.31 to 0.29). Correlations did not vary by smoking status, case–control status, or vitamin supplement use. The first PC of dietary intakes was mostly associated with methionine, vitamin B12, cysteine, and choline, while the first PC of blood concentrations was associated with folate and vitamin B6. Conclusions: Within this large European study, we found weak to moderate associations between dietary intakes and concentrations of OCM-related nutrients. Full article
(This article belongs to the Section Clinical Nutrition)
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14 pages, 966 KiB  
Review
A Novel Marine Oil from the Copepod Calanus finmarchicus: Source, Harvesting, Chemistry and Potential Application in Human Health
by Ellen Aasum, Alice M. Pedersen, Andreas Hahn, Terje S. Larsen and Kurt S. Tande
Lipidology 2025, 2(2), 11; https://doi.org/10.3390/lipidology2020011 - 1 Jun 2025
Viewed by 745
Abstract
In the first part of this paper, we introduce the marine copepod Calanus finmarchicus, its lifecycle and ecology, and describe the technologies developed for harvesting and extracting oil from this copepod. Calanus oil has a unique composition, with its fatty acids—including a [...] Read more.
In the first part of this paper, we introduce the marine copepod Calanus finmarchicus, its lifecycle and ecology, and describe the technologies developed for harvesting and extracting oil from this copepod. Calanus oil has a unique composition, with its fatty acids—including a high concentration of long-chain omega-3 polyunsaturated fatty acids (PUFAs) and monounsaturated fatty acids (MUFAs)—bound to long chain fatty alcohols in the form of wax esters. In the second part of this paper, we review pre-clinical and clinical studies conducted over the last two decades, which demonstrate the potential health benefits of Calanus oil. These studies highlight its role in preventing obesity-related metabolic distortions, such as inflammation and reduced insulin sensitivity. Full article
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18 pages, 263 KiB  
Article
Investigating AI Chatbots’ Role in Online Learning and Digital Agency Development
by Irina Engeness, Magnus Nohr and Trine Fossland
Educ. Sci. 2025, 15(6), 674; https://doi.org/10.3390/educsci15060674 - 29 May 2025
Viewed by 2321
Abstract
The integration of artificial intelligence (AI) chatbots in online learning environments has transformed the way students engage with educational content, offering personalised learning experiences, instant feedback, and scalable support. This study investigates the role of AI-driven chatbots in the Pedagogical Information and Communication [...] Read more.
The integration of artificial intelligence (AI) chatbots in online learning environments has transformed the way students engage with educational content, offering personalised learning experiences, instant feedback, and scalable support. This study investigates the role of AI-driven chatbots in the Pedagogical Information and Communication Technology (ICTPED) Massive Open Online Course (MOOC), a professional development course aimed at enhancing teachers’ Professional Digital Competence (PDC). The study pursues two connected aims: (1) to examine how chatbots support content comprehension, self-regulated learning, and engagement among pre- and in-service teachers, and (2) to explore, through a cultural-historical perspective, how chatbot use contributes to the development of students’ digital agency. Based on data from 46 students, collected through structured questionnaires and follow-up interviews, the findings show that chatbots functioned as interactive learning partners, helping students clarify complex concepts, generate learning resources, and engage in reflection—thereby supporting their PDC. At the same time, chatbot interactions mediated learners’ development of digital agency, enabling them to critically interact with digital tools and navigate online learning environments effectively. However, challenges such as over-reliance on AI-generated responses, inclusivity issues, and concerns regarding content accuracy were also identified. The results underscore the need for improved chatbot design, pedagogical scaffolding, and ethical considerations in AI-assisted learning. Future research should explore the long-term impact of chatbots on students’ learning and the implications of AI-driven tools for digital agency development in online education. Full article
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