bluuebunny/crossref_metadata_2025_split huggingface dataset:
ELECTROCHEMICAL SYNTHESIS OF MOLYB­DENUM CARBIDES IN MOLTEN SALTS: THEROMODYNAMIC ASPECT.
Authors: Kuleshov Serhii , Novoselova Inessa , Omel’chuk Anatoliy 
Published: January 2025

This paper presents thermodynamic calculations to identify optimal conditions for reducing oxygen-containing molybdenum and carbon compounds, suitable precursors for the electrochemical synthesis of molybdenum and molybdenum carbides in molten salts. A thermodynamic analysis of the high-temperature electrochemical synthesis (HTES) of molybdenum carbide was carried out based on calculations and analysis of thermochemi­cal decomposition voltages of molybdenum and carbon oxygen-containing compounds. The analysis have showed that the following pairs of compounds can be used as synthesis precursors for the electrochemical production of molybdenum carbides in the a wide range of cathodic current density: (1) BaMoO4–Li2CO3; (2) MoO2–CO2; (3) MoO2–CaCO3; (4) Li2MoO4–Li2CO3; (5) K2MoO4–Na2CO3; (6) MgMoO4–CO2; (7) CaMoO4–СaCO3; (8) ВaMoO4–ВaCO3; (9) Na2MoO4–Na2CO3; (10) СаMoO4–СО2; (11) Li2MoO4–СО2; (12) MoO2–Li2CO3; (13) ВаMoO4–СО2. The diffe­rence in the equilibrium potentials of molybdenum and carbon deposition from them does not exceed 0.2 V. For the first time, thermodynamic calculations have shown that alkali/alkaline earth metal cations, which are part of carbonates and molybdates composition, have an inverse effect on the potentials of carbon and molybdenum deposition from the corresponding compounds, depending on their polarization (electrostatic) force (Z/r2, where Z is the charge number of the cation, r is the cation radius). The higher the polarization force of the cation, the less energy consumption is required for the electrolytic deposition of carbon or molybdenum. It has been shown that the cathodic decomposition potentials of NaCl and KCl are more negative compared to the synthesis precursor compounds, which makes it possible to use an equimolar mixture of NaCl–KCl as a background electrolyte. The specified tem­pe­rature range of 700–750 °C ensures the stability of the electrolytic bath and the completeness of the reaction of formation of molybdenum carbides. Thermodynamic analysis of the HTES of molybdenum carbides allowed one to select the optimal compositions of pairs of synthesis precursors and background electrolyte, to propose minimum regimes of temperature and energy consumption for the electrolysis with the maximum of current yield for the final product due to the prevention of side reactions.
Harmonizing population health data into OMOP common data model: a demonstration using COVID-19 sero-surveillance data from Nairobi Urban Health and Demographic Surveillance System
Authors: Ochola Michael , Kiwuwa-Muyingo Sylvia , Bhattacharjee Tathagata , Amadi David , Ng’etich Maureen , Kadengye Damazo , Owoko Henry , Igumba Boniface , Greenfield Jay , Todd Jim , Kiragga Agnes 
Published: January 2025

BackgroundObservational health data are collected in different formats and structures, making it challenging to analyze with common tools. The Observational Medical Outcome Partnership (OMOP) Common Data Model (CDM) is a standardized data model that can harmonize observational health data.ObjectiveThis paper demonstrates the use of the OMOP CDM to harmonize COVID-19 sero-surveillance data from the Nairobi Urban Health and Demographic Surveillance System (HDSS).MethodsIn this study, we extracted data from the Nairobi Urban HDSS COVID-19 sero-surveillance database and mapped it to the OMOP CDM. We used open-source Observational Health Data Sciences and Informatics (OHDSI) tools like WhiteRabbit, RabbitInAHat, and USAGI. The steps included data profiling (scanning), mapping the vocabularies using the offline USAGI and online ATHENA, and designing the extract, transform, and load (ETL) process using RabbitInAHat. The ETL process was implemented using Pentaho Data Integration community edition software and structured query language (SQL). The target OMOP CDM can now be used to analyze the prevalence of COVID-19 antibodies in the Nairobi Urban HDSS population.ResultsWe successfully mapped the Nairobi Urban HDSS COVID-19 sero-surveillance data to the OMOP CDM. The standardized dataset included information on demographics, COVID-19 symptoms, vaccination, and COVID-19 antibody test results.ConclusionsThe OMOP CDM is a valuable tool for harmonizing observational health data. Using the OMOP CDM facilitates the sharing and analysis of observational health data, leading to a better understanding of disease conditions and trends and improving evidence-based population health strategies.
Strategies for inclusive digital education: problem/project-based learning, cooperative learning, and service learning for students with special educational needs
Authors: D’Elia Paola , Stalmach Aleksandra , Di Sano Sergio , Casale Gino 
Published: January 2025

IntroductionInclusive digital education is a growing field that aims to provide equitable learning opportunities for all students, including those with special educational needs (SEN). This study investigates the effectiveness of three pedagogical methods - problem/project-based learning (PBL), cooperative learning (CL), and service learning (SL) - in promoting inclusive digital education.MethodsWe adopted a quantitative approach, collecting data through a structured questionnaire administered to nine media education and pedagogy experts from Italy and Austria.ResultsResults showed that PBL, CL, and SL are generally effective but require differentiated implementation approaches to maximize inclusivity. Practical implementation in the inclusive context of PBL requires promoting student reflection and self-assessment adapted to students’ individual needs; in CL, group projects supported by digital collaboration tools (e.g., Google Docs) facilitate structured dialogue, peer collaboration, and shared responsibility, thereby increasing engagement; in SL, linking learning to real-world practice and designing experiences that reflect students’ abilities and interests emerge as crucial, especially for students with SEN.DiscussionThe implications of these findings suggest that educators should adopt flexible and adaptive strategies to successfully implement PBL, CL, and SL to ensure that they meet the diverse needs of students in digital environments. Limitations of the study and recommendations for future investigations are discussed to further develop this area of research.
Self-assessment of didactic performance of psychology and education professors in Mexico and Peru
Authors: Bazán-Ramírez Aldo , Capa-Luque Walter , Chávez-Nava Roberto , Dávila-Navarro Mónica C. , Ango-Aguilar Homero , Hervias-Guerra Edmundo , Bello-Vidal Catalina 
Published: January 2025

IntroductionThe evaluation of teaching performance in didactic interactions has generally been approached from the student’s perspective, with little literature on evaluation based on the teacher’s own perspective. Having an instrument that allows self-evaluation of teaching performance during didactic interactions will contribute to improving the quality of teaching and learning at the university level.ObjectivesThe validity and reliability evidence for the scores of the self-evaluation questionnaire of the teacher’s didactic performance are examined. The self-assessment of didactic performance is analyzed and the general didactic performance of the teacher and of his interactive episodes is contrasted according to some socio-academic characteristics. Method: Methodological, instrumental, descriptive, comparative and predictive cross-sectional study. A total of 203 teachers participated, of whom 64 were professors from a public university in northwestern Mexico, and 139 professors from two public universities in Peru.ResultsSatisfactory evidence of content-based validity was found, Aiken’s V estimates were higher than 0.70 for all items in the criteria: clarity, pertinence and relevance. As for the evidence of validity based on the internal structure of the construct, satisfactory results were found with the confirmatory factor analysis strategy for a multidimensional model of seven oblique factors (CFI = 0.99, TLI = 0.98, RMSEA = 0.05, SRMR = 0.06) and a second-order factor model made up of two general factors and seven specific first-order factors (CFI = 0.98, TLI = 0.98, RMSEA = 0.06, SRMR = 0.07). Evidence of convergent and discriminant validity was also acceptable. The reliability for the overall score of the questionnaire as well as for the interactive episodes evidenced McDonald’s ordinal alpha and omega coefficients ≥0.94 and H coefficient ≥ 0.95. With respect to the comparative analyses according to the professional training discipline and the sex factor, differences were found for a small effect size (d &gt; 0.20) in favor of education teachers and women both in general didactic performance and in the teaching and formative evaluation factors. Likewise, being an education teacher and a woman is more than twice as likely to have optimal teaching performance. As for the nationality of the teachers, no significant differences were found.
Spatiotemporal distribution patterns of cephalopods and their responses to changes in the marine environment in the coastal waters of Zhejiang, China
Authors: Liang Jun , Zhou Yongdong , Wu Tian , Chen Feng , Xu Kaida , Fang Guangjie , Zhang Yazhou 
Published: January 2025

IntroductionLike pelagic fishes, cephalopods represent fishery resources with high worldwide potential and an important evolutionary node animal group. Thus, exploring the spatial and seasonal variations in cephalopod distribution and their associations with environmental factors is important for elucidating cephalopod diversity and the distribution of cephalopods under changing environmental conditions and for developing reasonable resource management and conservation measures.MethodsOn the basis of trawl survey data from 123 stations in the coastal waters of Zhejiang, China, in the spring and autumn of 2021, the relationships among the cephalopod species composition and diversity characteristics and the spatial and seasonal changes and environmental factors were investigated via the relative importance index (IRI), the alpha diversity index, and the GAM.ResultsThe results revealed that the cephalopods in the coastal waters of Zhejiang belonged to three orders, six families, and 10 genera and that the dominant species were gradually replaced by species of minor economic importance and endemic small-scale fishery species. In spring, Uroteuthis duvaucelii was the dominant species, the resource density in the southern coastal waters of Zhejiang was relatively high, and the overall distribution increased from northeast to southwest. In autumn, U. duvaucelii and Abralia multihamata were the dominant species, and the coastal waters of Zhejiang presented two high-density distribution areas in the northern and central waters, with lower resource density in the southern waters. Analysis of the alpha diversity index revealed relatively low cephalopod community diversity, with significant differences in spatial and seasonal distributions. The GAM revealed that, in spring, surface dissolved oxygen and sea bottom temperature led to significant changes in cephalopod resource density (p&lt;0.05), and water depth significantly affected cephalopod resource density (p&lt;0.01); in autumn, only water depth significantly affected cephalopod resource density (p&lt;0.01).DiscussionThe cephalopod resources in the coastal waters of Zhejiang are under the dual stresses of fishing and environmental changes. The protection and restoration of traditional economic cephalopod resources are needed to ensure their sustainable development and utilization.
Neural correlates of the non-optimal price: an MEG/EEG study
Authors: Gorin Aleksei , Kuznetsova Elizaveta , Kislov Andrew , Levchenko Egor , Klucharev Vasily , Moiseeva Victoria , Yurchenko Anna , Luzhin Alexander , Galkina Natalia , Shestakova Anna N. 
Published: January 2025

IntroductionSetting the right price is crucial for effectively positioning products in the market. Conversely, setting a “non-optimal price”—one that is perceived as much lower or higher than the product's true market value—can negatively influence consumer decisions and business results.MethodsWe conducted two electroencephalography (EEG) studies and one magnetoencephalography (MEG) study to investigate brain mechanisms underlying the perception of prices during a price judgment task. In each trial, participants were exposed to a mobile phone image (iPhone, Nokia, or Xiaomi) followed by a price, and instructed to judge whether the price was high or low based on a target word (“cheap” or “expensive”).ResultsIn both EEG experiments, we found a strong N400-like response to the incongruent target words following prices that substantially differed from the real market value of the mobile phone. The MEG experiment extended these findings by localizing the brain source of the price-related, M400-like response, the magnetic counterpart to the N400 component, in the ventromedial prefrontal cortex (vmPFC) and anterior cingulate cortex (ACC) implicated in value-based and reward-based learning, respectively. Our results demonstrate that both the brain sources and the timing of the price-related M400 response differed from those of the standard M400 evoked by semantically incongruent words.DiscussionOverall, our results suggest that the N400-like response can serve as a neural marker of price-product incongruity, with potential applications in consumer research.
Global hotspots and trends of nutritional supplements for sick populations from 2000 to 2024
Authors: Shi Chaofan , Liu Haitao , Fu Te , Li Yuanquan , Zhao Haichang , Liu Feiyue 
Published: January 2025

BackgroundNutritional supplements (NS) can help patients by providing various nutrients such as essential vitamins and minerals, helping to prevent and recover from diseases. This study provides a broad overview of the field of NS for sick people through bibliometrics and visualization analysis, to analyze the status and development dynamics, explore the popular research questions and directions, and reveal the development trends and research frontiers.MethodsWe searched the Web of Science Core Collection databases for literature related to NS for diseased populations from 2000 to 2024. A total of 1,550 articles were included in the analysis after screening. Analyses performed using CiteSpace and VOSviewer software.ResultsThe field of NS for the sick population has witnessed an overall rapid growth in the number of publications, which is divided into three phases: 2000–2008 was the exploratory phase, 2009–2017 was the sustained development phase, and 2018 to date is in the rapid development phase. Research focuses on dietary supplementation, oxidative stress, in vitro injections, development, antioxidant activity, double-blind trials, lipid supplements, functional foods, the health of diseased populations, and the risks of NS.ConclusionDifferent supplements each possess unique benefits and should be chosen according to the type of disease to ensure they contain the corresponding nutrients. Vitamin supplements are widely mentioned among patient populations across the globe. Future trends may focus on applying nutritional supplements in gut microbiota and bioactive compounds. Researchers frequently mention the application of NS in women, infants, and children. It should continue to be monitored and optimized in the future to enhance its therapeutic effects, thereby accelerating patients’ recovery and improving their quality of life.
Detection of melatonin and 5-HTP in dietary supplements based on multiple spectra
Authors: Yang Huiyu , Zhang Xinrui , Gao Yang , Peng Zhuang , Su Bo , Li Kai , Zhang Cunlin 
Published: January 2025

IntroductionMelatonin and 5-hydroxytryptophan (5-HTP), known for benefits in regulating sleep and combating depression, respectively, are incorporated into dietary supplements. Rapid and accurate identification of dietary supplement types and their contents remains a significant challenge in ensuring food safety.MethodsIn this study, qualitative and quantitative analysis of melatonin and 5-HTP was performed using Raman spectroscopy, powder X-ray diffraction (PXRD), and terahertz time-domain spectroscopy (THz-TDS). Purity and crystal structures of the samples were investigated using Raman spectroscopy and PXRD, establishing the foundation for terahertz (THz) simulations.Results and discussionThe Raman spectroscopy results demonstrate that the characteristic Raman peaks of melatonin and 5-HTP in the range from 170 cm−1 to 1700 cm−1 were observed at 1356 cm−1 and 1,304 cm−1, respectively. Results of THz revealed that melatonin and 5-HTP each have five THz characteristic peaks, which distinguish these substances. The peak of melatonin at 1.23 THz shows a good linear fit with the mass fraction, while 5-HTP has a similar relationship at 1.14 THz. Then, L-tryptophan, a common contaminant in the production of melatonin and 5-HTP, was successfully identified within the mixture. Finally, it is demonstrated that THz technology can effectively detect melatonin and 5-HTP in commercial dietary supplements. This study establishes a rapid, efficient, and non-destructive approach for the regulation and quantitative analysis of dietary supplements.
Coalitions, coordination, and contestation: a systematic review of the advocacy coalition framework and its implications for sustainability transitions research
Authors: Wesche Julius P. , Dütschke Elisabeth , Negro Simona O. , Hekkert Marko P. 
Published: January 2025

IntroductionAchieving sustainability transitions requires substantial policy changes, often driven by coalitions of actors advocating for institutional change and transformative agendas. While the transitions literature highlights the importance of coalition coordination, the underlying processes remain insufficiently understood. This study explores the Advocacy Coalition Framework (ACF) to derive insights into the coordination and dynamics of advocacy coalitions relevant to sustainability transitions.MethodsA systematic review of ACF literature was conducted, encompassing an initial corpus of over 700 articles and refining it to a final set of 45 documents. These documents were analyzed using qualitative coding to identify key factors influencing coalition coordination and to conceptualize coalition dynamics across the phases of sustainability transitions.ResultsThe review identifies four categories of factors shaping coalition coordination: prerequisites for coordination, reasons to coordinate, instrumental factors that influence coordination, and internal organization of coalitions. Additionally, it outlines how coordination patterns evolve across four sustainability transition phases, leading to the development of a typology that integrates dynamics within coalitions and across coalitions with two transition pathways: technological substitution and reconfiguration.DiscussionThis study advances the understanding of the political processes underpinning sustainability transitions by integrating ACF insights into transition studies. It underscores the importance of belief systems, resource access, and trust in fostering effective coalition coordination. The proposed typology offers a conceptual framework to guide future empirical research on coalition dynamics and their role in accelerating sustainability transitions.
A study on the impact of sports participation support on the level of sports participation of urban junior high school girls in China
Authors: Dong Mingyuan , Niu Mingtian , Jiang Zhengxin , Choi Yongchul , Li Ning 
Published: January 2025

BackgroundSocial support has been identified as a key factor influencing adolescents’ engagement in physical activities. However, the relationship between middle school girls’ physical activity levels and the actual social support they receive remains unclear.AimThis study aims to explore the support mechanisms that promote increased physical activity participation among middle school girls.MethodsA survey was conducted with 1,371 middle school girls from 16 regions and cities in China. The questionnaire included the Physical Activity Questionnaire (PAQ), the Social Support and Exercise Survey, the Physical Activity Rank Scale, and the Family Affluence Scale (FAS). Linear regression was used to examine the relationships among family support, out-of-school exercise behavior, in-school exercise behavior, and the physical activity levels of middle school girls.ResultsIn-school physical activity participation (6.6%) was higher than out-of-school participation (5.5%) among urban middle school girls. Physical activity levels were significantly positively correlated with social support from family, peers, and teachers (p &lt; 0.01). Linear regression and descriptive statistics consistently showed that family support was the highest (3.50 ± 1.06), followed by teacher support (3.17 ± 0.96) and peer support (2.88 ± 0.96). Emotional support was notably higher, while instrumental support was relatively low. The physical activity levels of urban middle school girls were associated with the age and grade of the individual, the economic conditions of the family, and the highest level of education of the parents.ConclusionFamily support significantly enhances urban middle school girls’ participation in physical activities. Higher parental education levels may reduce girls’ activity participation, while improved family economic conditions may decrease emotional support but increase informational support. The support of friends and teachers will make up for the decrease in family support. A school-based social support network is essential to address disparities in activity support and implement health intervention programs for middle school girls.
Psychometric evaluation of the exercise-related cognitive errors questionnaire among Chinese emerging adults
Authors: Guo Mengyao , Kuang Jin , Wang Ting , Herold Fabian , Taylor Alyx , Ng Jonathan Leo , Hossain M. Mahbub , Kramer Arthur F. , Schinke Robert , Cheng Zhihui , Zou Liye 
Published: January 2025

BackgroundCognitive errors involve negatively biased or distorted thinking patterns that can hinder effective decision-making. When such a phenomenon occurs in the exercise domain, this is referred to as exercise-related cognitive error. Such exercise-related cognitive errors are typically assessed via a questionnaire, but a validated instrument for the application in Chinese-speaking populations is lacking. Thus, this study aims to validate the Chinese version of the Exercise-related Cognitive Errors Questionnaire (E-CEQ-C) among Chinese emerging adults, a self-report measure to evaluate cognitive errors of context-relevant information related to exercise.MethodsFollowing a forward-backward translation of the E-CEQ (N = 24 items), the E-CEQ-C and the Chinese version of the Cognitive Distortions Questionnaire (CD-Quest-C) for gathering evidence of criterion-related validity were administered among a sample of Chinese emerging adults (N = 376, 29.0% male) through an online survey. After a two-week interval, 105 out of 376 participants attended a re-test of the E-CEQ-C. Item analysis, confirmatory factor analysis (CFA), internal consistency, test–retest reliability, and concurrent validity were analyzed.ResultsThe findings from the CFA support the 24-item informed six-factor structure among Chinese emerging adults (χ2 = 699.038, RMSEA = 0.073, CFI = 0.919, TLI = 0.904, and SRMR = 0.055). Cronbach’s α of the six dimensions of the E-CEQ-C were all above 0.7. The test–retest reliability coefficients of each subscale and total scale were acceptable, ranging from 0.60 to 0.81. In accordance with the literature, we also observed positive associations between the six dimensions of E-CEQ-C and the constructs of the CD-Quest-C, which provided concurrent validity evidence for the E-CEQ-C.ConclusionThis study showed that E-CEQ-C is a psychometrically sound measure to assess exercise-related cognitive errors in Chinese-speaking populations.