F1000Research最新文献

{"title":"Intertextual Reimagining of Desdemona: Feminist Revision, Postcolonial Memory, and Shakespearean Adaptation.","authors":"Majed Al-Anzy, Ayman Elhalafawy, Eman Darwish, Mohammed Abou Adel, Ahmad Al Mahamed, Samir Khalifa","doi":"10.12688/f1000research.190656.1","DOIUrl":"https://doi.org/10.12688/f1000research.190656.1","url":null,"abstract":"<p><strong>Background: </strong>In an age increasingly concerned with gender justice, racial memory, and the decolonization of literary canons, Shakespeare's Desdemona remains a critical site for rethinking how women's voices are silenced, revised, and restored across cultures and historical moments. This study examines the intertextual reimagining of Desdemona in William Shakespeare's <i>Othello</i>, Toni Morrison's <i>Desdemona</i>, and Paula Vogel's <i>Desdemona: A Play About a Handkerchief</i>, arguing that these works should not be read as isolated dramatic texts but as a tri-textual field of feminist revision and postcolonial critique. Addressing a gap in previous scholarship, which has largely treated Morrison's and Vogel's adaptations separately, the article offers a theoretically grounded comparative reading that brings the three plays into dialogue.</p><p><strong>Methods: </strong>Methodologically, the study employs qualitative intertextual analysis and close reading, drawing on Julia Kristeva's intertextuality, Gérard Genette's hypotext/hypertext model, Adrienne Rich's feminist re-vision, Linda Hutcheon's theory of adaptation, and Chandra Talpade Mohanty's postcolonial feminism. It shows how Morrison and Vogel transform Desdemona from a passive, silenced figure within Shakespearean tragedy into a complex site of agency, resistance, memory, and feminist critique.</p><p><strong>Results: </strong>The findings reveal that Morrison restores Desdemona's voice through purgatorial self-knowledge, Barbary's recovered Black female memory, and cross-racial solidarity, whereas Vogel uses parody, class consciousness, sexual agency, and chamber-space disruption to dismantle patriarchy.</p><p><strong>Conclusions: </strong>This study has re-framed the problem of Desdemona's representation not as a question of character revision alone, but as a broader inquiry into how canonical drama can be reread, contested, and politically reactivated through feminist and postcolonial intertextuality.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"15 ","pages":"1604"},"PeriodicalIF":0.0,"publicationDate":"2026-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13662385/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149192238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrating Big Five Personality Traits and TPACK: A Pedagogical Framework for Collaborative Learning Management System (C-LMS) in Higher Education.","authors":"Daniel Lai, Sook Ling Lew, Shih Yin Ooi","doi":"10.12688/f1000research.183549.2","DOIUrl":"https://doi.org/10.12688/f1000research.183549.2","url":null,"abstract":"<p><strong>Background: </strong>The current research assesses whether students can achieve better academic performance through the proposed collaborative learning management system (C-LMS) developed as the primary virtual collaborative learning environment. It is intended to examine the relationship between students' personality traits and their technological, pedagogical, and content knowledge (TPACK) proficiency and to determine their continued use of technology.</p><p><strong>Methods: </strong>The current research initiated an investigation of the issue from psychological perspectives, using students' Big Five Personality Traits (BFPT) as predictors and extending the study by grounding it in the TPACK framework. It aimed to explain the relationship between BFPT and TPACK among students regarding their continued use of technology. The research experiment was conducted using the developed proposed C-LMS integrated into the virtual collaborative learning environment. Participants completed the provided pre-module knowledge-checking test after completing the BFPT questionnaire. Then, they needed to complete a post-module knowledge-checking test, a TPACK questionnaire, and course feedback. Their course feedback indicates their intention to continue using technology.</p><p><strong>Results: </strong>Based on the findings, the students' BFPT had a significant effect on their TPACK and continued use of technology, except for extraversion, neuroticism and TCK towards TPACK. Using PLSpredict, the proposed model demonstrated substantial predictive power over the LM model, consistently achieving lower RMSE and MAE across most indicators. Engagement within the C-LMS was positively associated with students' academic performance, suggesting that collaborative features align with higher academic outcomes.</p><p><strong>Conclusions: </strong>The current research demonstrated the proposed structural model, adopting the Big Five Personality Traits (BFPT) and the TPACK framework, and integrating the proposed C-LMS to improve students' collaborativeness through a dedicated online course. Moreover, students' understanding of the enrolled online course improves significantly when the proposed C-LMS is integrated as the primary virtual collaborative learning environment. The phenomenon explained the positive impact of the proposed C-LMS on students' academic performance in collaboration and knowledge co-creation.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"15 ","pages":"1288"},"PeriodicalIF":0.0,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13646544/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149170507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sentiment Analysis of Acceptance TVET Online Courses on the Skill Academy App from Google Play: Leveraging Text Mining with Comparison Machine Learning Model.","authors":"Darmono Darmono, Yanuar Agung Fadlullah, Khakam Ma'ruf, Muhamad Riyan Maulana, Apry Aditya Saputra, Ramzy Bin Sulaiman, Bagus Banjar Bagaskara, Rizal Justian Setiawan, Sahril Sahril","doi":"10.12688/f1000research.181728.2","DOIUrl":"10.12688/f1000research.181728.2","url":null,"abstract":"<p><strong>Background: </strong>Online Technical and Vocational Education and Training (TVET) has expanded rapidly in Indonesia through platforms such as Skill Academy. User reviews provide valuable insights into user acceptance, but their volume makes manual analysis impractical. Therefore, this study applies text mining to analyze user sentiment and compare eight machine learning models for sentiment classification.</p><p><strong>Methods: </strong>The study used 3,000 reviews collected via web scraping using the google-play-scraper library. The data was then anonymized, cleaned, translated into English, and automatically sentiment-labeled using VADER. The validity of the labeling was verified by comparing it with TextBlob and the original star-rating categories using Cohen's Kappa. Eight classification algorithms Naive Bayes, SVM, Logistic Regression, Random Forest, Decision Tree, KNN, XGBoost, and LightGBM were trained using a TF-IDF pipeline with GridSearchCV and five-fold cross-validation.</p><p><strong>Results: </strong>The labeling validation results showed moderate agreement, with a Cohen's Kappa of 0.500 for TextBlob and 0.533 for the original star rating categories. On the test data, Logistic Regression achieved the best performance with an accuracy of 85.48%, a macro-F1 score of 76.08%, a balanced accuracy of 80.86%, and a macro-AUC of 0.9486, followed by SVM and XGBoost. The sentiment distribution was dominated by positive reviews at 75.31%, followed by negative reviews at 15.57%, and neutral reviews at 9.12%. The SMOTETomek experiment improved balanced accuracy and recall for the minority class but reduced macro-precision. Word cloud and word frequency analysis revealed that the main complaints were related to the app being slow, resource-intensive, and prone to errors, while user appreciation centered on ease of learning and the quality of the material.</p><p><strong>Conclusions: </strong>Research shows that logistic regression achieved the best classification performance. While user sentiment was largely positive, improving application stability remains essential for sustaining user acceptance, enhancing learning experiences, and supporting long-term adoption of online TVET platforms.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"15 ","pages":"899"},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13310357/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148351443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Youth Labour Market Participation in Africa: A Cross-National Analysis of Employment, Unemployment, Sectoral Distribution, and Educational Attainment Among the 15-35 Age Cohort, 2026.","authors":"Said Maizzou, Abdelhak Anajar, Mohamed Rahmo","doi":"10.12688/f1000research.179407.3","DOIUrl":"10.12688/f1000research.179407.3","url":null,"abstract":"<p><strong>Background: </strong>Africa hosts the world's largest youth cohort, yet its labour markets remain characterised by structural imbalances, agricultural dependence, gender inequalities, and educational credential mismatches. This study provides a cross-national analysis of youth labour market participation across the 54 African Union member states in 2026, disaggregated by sex, age group, economic sector, and educational attainment.</p><p><strong>Methods: </strong>A cross-sectional descriptive-correlational study was conducted using harmonised International Labour Organization (ILO) modelled estimates for youth aged 15-35 years. Youth unemployment (YUR), labour force participation (LFPR), and not-in-employment, education, or training (NEET) rates were analysed by country, sub-region, sex, age group, and education level. Pearson's correlation assessed the association between YUR and NEET rate, while four nested ordinary least squares (OLS) models identified cross-country correlates of YUR.</p><p><strong>Results: </strong>Among 545.1 million African youth, 57.1% were employed, 4.2% unemployed, 15.0% inactive, and 23.6% in education. The continental YUR was 6.91%, ranging from 0.4% in Niger to 37.4% in Eswatini, with higher unemployment in North Africa (11.09%) than sub-Saharan Africa (6.40%). The NEET rate reached 19.23%, agriculture accounted for 45.9% of youth employment, and female unemployment exceeded male unemployment (7.56% vs. 6.40%). Upper secondary and tertiary graduates represented 52.7% of unemployed youth. YUR was strongly correlated with the NEET rate (r = 0.720, <i>p</i> < 0.001). OLS models showed that agricultural employment share was the strongest negative correlate of YUR (β = -0.255, <i>p</i> < 0.001), whereas the share of educated unemployed was positively associated with YUR ( <i>p</i> = 0.043).</p><p><strong>Conclusions: </strong>African youth labour markets exhibit substantial cross-country heterogeneity, persistent informality, and education-employment mismatches. Policies promoting structural transformation, skills alignment, gender equality, and social protection are needed. These findings highlight the limitations of unemployment rates alone as indicators of youth labour market performance.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"15 ","pages":"604"},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13560831/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148955290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of transcutaneous electrical stimulation on peripheral nerve regeneration after digital neurorrhaphy: A randomized clinical trial.","authors":"Enilton de Santana Ribeiro de Mattos, Alex Guedes, Yossi Zana, Paulo Itamar Ferraz Lessa, César Romero Antunes Júnior, Eduardo Silva Reis Barreto, Abrahão Fontes Baptista","doi":"10.12688/f1000research.169801.4","DOIUrl":"10.12688/f1000research.169801.4","url":null,"abstract":"<p><strong>Background: </strong>Sensory recovery following digital nerve neurorrhaphy is often incomplete, and strategies to enhance regeneration remain under investigation. Low-frequency transcutaneous electrical stimulation has been proposed as a potential adjunctive therapy, but its efficacy in clinical settings is uncertain.</p><p><strong>Methods: </strong>In this randomized controlled trial, 32 patients with isolated traumatic digital nerve injuries underwent surgical neurorrhaphy at a tertiary care hospital. Participants were randomly allocated to an intervention group (n = 16) or sham group (n = 16). The intervention consisted of a single postoperative session of square-pulsed, biphasic transcutaneous electrical stimulation at 20 Hz for 1 hour. The sham group received identical conditions without active stimulation. After stimulation, patients underwent physiotherapy sessions for three months. Sensory recovery was assessed using Semmes-Weinstein monofilament testing and two-point discrimination at baseline, 1 week, 1 month, and 3 months postoperatively.</p><p><strong>Results: </strong>Both groups showed progressive sensory improvement throughout follow-up, approaching normal values at 3 months. No statistically significant differences were observed between groups in any outcome measure. Confidence intervals for group comparisons overlapped, and no clinically meaningful differences were detected. No adverse effects were reported.</p><p><strong>Conclusions: </strong>In this model, a single postoperative session of low-frequency transcutaneous electrical stimulation did not significantly enhance sensory recovery after digital nerve repair. Further research with varied stimulation protocols, repeated sessions, or extended follow-up may be warranted to clarify its potential role in peripheral nerve regeneration.</p><p><strong>Level of evidence: </strong>Therapeutic Level I.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"14 ","pages":"1222"},"PeriodicalIF":0.0,"publicationDate":"2026-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13250519/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148224144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Mediating Role of ICTs in the Relationship Between Pedagogical Innovation and Student Satisfaction in Private Universities in Northern Peru.","authors":"Marilú Trinidad Flores Lezama, Yanet Vanessa Vásquez Romero, Rosario Mercedes Huerta Soto, Pablo Valentino Aguilar Chávez, Ana Elizabeth Paredes Morales","doi":"10.12688/f1000research.183195.2","DOIUrl":"https://doi.org/10.12688/f1000research.183195.2","url":null,"abstract":"<p><strong>Background: </strong>Private universities in northern Peru face the challenge of aligning pedagogical innovation with effective technological integration to improve student satisfaction. Most Peruvian studies rely on bivariate analyses and rarely examine the pathways linking pedagogical innovation to satisfaction. This study analyzes whether ICT integration mediates the relationship between pedagogical innovation and student satisfaction at private universities in northern Peru.</p><p><strong>Methods: </strong>A quantitative, non-experimental, cross-sectional design was applied to 341 undergraduate students from the northern macroregion of Peru (La Libertad, Lambayeque, Piura, and Áncash), selected through stratified probability sampling. Data were collected using a 40-item self-administered online questionnaire rated on a five-point Likert scale, validated by five expert judges (Aiken's V = 0.92), with excellent construct reliability (α = 0.91-0.97; ω = 0.93-0.98; AVE = 0.60-0.71). The mediation model was estimated using Model 4 of Hayes' PROCESS macro with 5,000 bootstrap resamples.</p><p><strong>Results: </strong>All five hypotheses were confirmed. Pedagogical innovation positively predicted ICT integration (β = 0.856, p < 0.001) and student satisfaction both directly (β = 0.340, p < 0.001) and indirectly through ICT integration (indirect effect β = 0.480; 95% bootstrap CI [0.367; 0.585]), confirming partial mediation with a variance accounted for (VAF) of 58.5%. The model explained 75.6% of the variance in student satisfaction and 73.3% in ICT integration, with large effect sizes and positive predictive validity (Q ² > 0). Importance-performance analysis (IPMA) identified pedagogical innovation as the construct with the greatest potential impact on satisfaction.</p><p><strong>Conclusions: </strong>ICT integration partially mediates the relationship between pedagogical innovation and student satisfaction, accounting for more than half of the total effect. Pedagogical innovation also exerts a significant direct effect on satisfaction, indicating that non-technological channels - such as human interaction quality, curricular relevance, and meaningful assessment - remain important. These findings suggest that simultaneous and complementary investment in pedagogical innovation and ICT integration, prioritized through IPMA, offers the greatest return for private universities in northern Peru seeking to improve the quality of the student experience.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"15 ","pages":"1016"},"PeriodicalIF":0.0,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13601789/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149059538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating Mycelium as an insulation material: A comparative study on thermal performance, comfort, and energy efficiency.","authors":"Bassant Khaled, Nermine Hany, Gihan Mosaad","doi":"10.12688/f1000research.162989.3","DOIUrl":"10.12688/f1000research.162989.3","url":null,"abstract":"<p><strong>Background: </strong>Since the building sector contributes significantly to carbon emissions, using sustainable materials is more crucial than ever. Mycelium is investigated in this study as a natural substitute for conventional insulation materials like rock wool and XPS. Its thermal performance has been evaluated in a residential building in New Cairo, Egypt, using Design-Builder simulations, paying particular attention to U-values, discomfort hours, PPD-PMV, and energy consumption. The results demonstrate that mycelium is environmentally safe, biodegradable, and provides insulation that is comparable to XPS. This demonstrates its promise as a sustainable option for building in the future.</p><p><strong>Methods: </strong>This research uses Design-Builder software version 7.3.0.046 integrated with Energy-Plus to simulate the thermal conductivity of mycelium compared to two of the most frequently utilized traditional materials for insulation in Egypt, in Janna Compound, New Cairo. The analysis examines energy consumption, thermal comfort, Predicted Mean Vote (PMV), and Predicted Percentage of Dissatisfaction (PPD%). The study provides a comparative evaluation of mycelium insulation compared to traditional materials like XPS and Rockwool.</p><p><strong>Results: </strong>According to the simulation results, mycelium insulation performs comparably to XPS regarding U-values, discomfort hours, PPD-PMV, and energy consumption. Specifically, mycelium achieved a 0.323 U-value, reduced discomfort hours percentage to 16.9%, and achieved a ratio of energy reduction of 15.8% compared to the base case. These results demonstrate how mycelium has the potential to compete with traditional insulation materials while offering significant sustainability advantages, such as biodegradability and a lower carbon footprint.</p><p><strong>Conclusion: </strong>In Janna Compound, New Cairo, the research shows how mycelium insulation can improve thermal comfort and save energy usage. It performs similarly to XPS but has more positive environmental effects. These results support the integration of mycelium into Egypt's sustainable housing practices, providing key insights for architects, developers, and policymakers focused on energy-efficient and sustainable urban development.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"14 ","pages":"459"},"PeriodicalIF":0.0,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12954402/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147354450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inclusive Education without Paradigm Change: Explaining Thailand's Misalignment with the Salamanca Vision.","authors":"Pongmanut Deeod","doi":"10.12688/f1000research.188764.2","DOIUrl":"10.12688/f1000research.188764.2","url":null,"abstract":"<p><strong>Background: </strong>Thailand has formally committed to inclusive education for three decades, yet its schools continue to fall short of the transformative vision set out in the Salamanca Statement. Existing explanations attribute this gap to implementation failure insufficient resources, weak enforcement, or inadequate training. Implementation factors alone do not sufficiently explain this persistence, which also reflects a paradigm misalignment between Thailand's welfare-oriented policy architecture and the rights-based model of disability underpinning international inclusive education norms.</p><p><strong>Methods: </strong>The analysis integrates policy paradigm theory, the rights-based model of disability under the Convention on the Rights of Persons with Disabilities, and Universal Design for Learning as a combined analytical framework. Thai legal instruments enacted since 1999, together with the empirical literature on their implementation, are synthesised to trace the depth of policy change achieved and to identify the structural conditions that have constrained it.</p><p><strong>Results: </strong>Legislative reform since 1999 has produced first- and second-order change new instruments, budget allocations, and support services without disturbing the single-standard logic that continues to organise curriculum, assessment, and teacher practice. Four interlocking structural conditions sustain this misalignment: a school system built around the average learner, a charity-oriented framing of disability, a standardised assessment regime, and a teacher role confined to curriculum implementation rather than learning design. The analysis proposes a theoretical mechanism, termed the \"moral trap,\" describing how a culturally legitimised charity ethic absorbs rights-based reform and shields the existing paradigm from structural challenge even after formal legal transformation.</p><p><strong>Conclusions: </strong>Building on these findings, the article proposes a Universal Design for Learning-Based Paradigm Realignment Framework, together with a four-question diagnostic tool, as a pathway toward third-order change that is potentially compatible with, rather than disruptive of, Thailand's existing administrative structure across curriculum, assessment, and teacher professional development one that does not require dismantling Thailand's centralised bureaucratic structure.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"15 ","pages":"1395"},"PeriodicalIF":0.0,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13579026/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148988847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"No link between polymetallic nodules and anomalous oxygen concentration increases in benthic experiments from the Clarion Clipperton Zone.","authors":"Alexander P Webber, Patrick Downes, Joaquim Bento, Leigh Marsh, Felipe S Freitas, Michael Clarke","doi":"10.12688/f1000research.181486.2","DOIUrl":"10.12688/f1000research.181486.2","url":null,"abstract":"<p><strong>Background: </strong>Polymetallic nodules in the deep sea of the Clarion Clipperton zone (CCZ) have been implicated in the abiotic production of oxygen during benthic chamber respirometer experiments. The hypothesis, termed \"dark oxygen\", was supported with a correlation between average nodule surface area and oxygen production rates, given as a Spearman's correlation coefficient of <i>⍴</i> = 0.664, <i>p</i> = 0.031, n = 11, suggesting that polymetallic nodules were responsible for the oxygen concentration rises and that larger polymetallic nodules cause more oxygen production. However, this correlation and the dark oxygen hypothesis appears to be incompatible with the observation that experiments in the western CCZ and a control experiment recorded increasing oxygen with no nodules present.</p><p><strong>Methods: </strong>To investigate the dark oxygen hypothesis, we repeated the surface area analysis using image segmentation, and expanded the dataset with three additional chamber images, the weight of the nodules recovered from the chambers and a further three experiments for which nodule weight data are available.</p><p><strong>Results: </strong>We find no significant correlations between total nodule area, average area, total nodule weight or average nodule weight and net oxygen concentrations, increase in the chambers. The inclusion of the three additional chamber images in the analysis reduces the significance of the previously stated correlation to <i>⍴</i> = 0.433, <i>p</i> = 0.122, with confidence intervals that cross zero (-0.13, 0.78).</p><p><strong>Conclusion: </strong>On further scrutiny the correlation between oxygen production and nodule surface area is spurious, and consequently, there is no established causal link between polymetallic nodules and increasing oxygen concentration in the benthic chamber respirometer experiments. Since oxygen concentration increased in experiments regardless of the size, abundance, or presence of polymetallic nodules, we find it likely that polymetallic nodules are not related to the rising oxygen concentration in any of these experiments.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"15 ","pages":"729"},"PeriodicalIF":0.0,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13560710/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148955362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reflections on the Development and Implementation of a University Student Health and Well-being Online Survey: the BOOST-Well Project.","authors":"Justin Keogh, Evelyne Rathbone, Wendy J Brown, Beth Mozolic-Staunton, Gregory Cox, James Furness, Jaclyn Szkwara","doi":"10.12688/f1000research.168558.4","DOIUrl":"10.12688/f1000research.168558.4","url":null,"abstract":"<p><strong>Background: </strong>First year university students may be at risk of poor health behaviours and outcomes. Unfortunately, online surveys assessing multiple aspects of the health and well-being of university students have poor response rates, meaning the representativeness of such data may be questionable. This study sought to develop and implement an online survey to examine the health and well-being behaviours of medical and allied health students, with higher participation and response rate than have been reported in previous surveys.</p><p><strong>Methods: </strong>A cross-sectional online survey was developed following recommendations to maximise the participation and response rates. All new students (defined as commencing a degree in May or September 2024) from undergraduate medical and postgraduate allied health programs from one Australian university were requested to participate. The survey included 136 items, most of which were validated questionnaires commonly used in national surveys. Participants were requested to complete the survey on their own device during scheduled class time within the first two weeks of their degree.</p><p><strong>Results: </strong>Of 273 eligible students, 217 (79.5%) accessed the survey, with 201 (73.6%) completing it at least partially and 63.7% completing it fully. Median completion time was 14.4 (IQR: 12.3-16.8) minutes, and item-level response rates were high across disciplines. Differences in completion rates and survey duration were observed, with occupational therapy students taking the longest time to complete the survey (17.4 min).</p><p><strong>Conclusions: </strong>The BOOST-Well survey achieved markedly higher response rates than comparable studies. This may reflect the student-informed survey design, concise format, strategic timing, and evidence-based recruitment and implementation strategies.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"14 ","pages":"808"},"PeriodicalIF":0.0,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13616052/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149074247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}