bluuebunny/crossref_metadata_2025_split huggingface dataset:
Piff, paff, kan ikke dere bare danse litt? En kvalitativ intervjustudie om dansepedagogikkens kår i kulturskolen
Authors: Meriaux Laurence , Bandlien Bjørn-Terje 
Published: February 2025

I denne artikkelen belyser vi hvordan fem kulturskolelærere i dans har erfart forutsetningene for undervisning i dans i kulturskolen. Gjennom en narrativ tilnærming forteller forskerne om framtredende tematikker som beskriver dansepedagogikkens kår i kulturskolen ut fra informantenes fortellinger om sine opplevde erfaringer. Profesjonsteori og praksisarkitekturteori benyttes for å utvikle forståelser omkring disse fortellingene. Framtredende resultater dreier seg om at danselærerne har opplevd frustrasjoner omkring utfordringer med å bli forstått og respektert som representanter for et autonomt og sterkt utviklet fagfelt med bestemte verdier, normer, kunnskaper, forutsetninger og praksiser. Dette innebærer at danselærerne ofte opplever utfordringer rundt samarbeid med ledere og andre ansatte i kulturskolen. Vi finner også noen kropps- og aldersrelaterte utfordringer som har betydning for danselærernes yrkeslivsutvikling og for hvordan maktkonstellasjoner formes i kulturskolen. Ut fra dette foreslår vi reelle interprofesjonelle reforhandlinger av kulturskolens innhold på tvers av kulturskolens ulike fagområder, der bærere av de ulike fagprofesjonene deltar aktivt og likeverdig.
ENGLISH ABSTRACT
“Pfft, can’t you just dance a little?” An investigation of five dance teachers’ experiences in the kulturskole
n this article, we shed light on how five dance teachers have experienced the conditions for teaching dance in the kulturskole. Through a narrative approach, the researchers explore prominent themes that describe the state of dance pedagogy in the kulturskole based on the participants’ accounts of their lived experiences. Theory about profession and practice architectures are used to develop understandings of these narratives. Key findings reveal that the dance teachers have experienced frustrations regarding challenges in being understood and respected as representatives of an autonomous and well-developed professional field with specific values, norms, knowledge, conditions, and practices. This often involves challenges in collaborating with leaders and other staff members in the kulturskole. We also identify certain body- and age-related challenges that influence the professional development of dance teachers and the formation of power dynamics within the kulturskole. Based on these findings, we propose genuine interprofessional renegotiations of the kulturskole’s content across its various subject areas, where representatives of the different professional fields actively and equally participate.
Pengaruh Penggunaan Jenis Litter Sekam padi dan Serutan Kayu Terhadap Kadar Amonia, pH dan Suhu Litter pada Kandang Closed House
Authors: Anggoro Rifki Dwi , Riyanti Riyanti , Santosa Purnama Edy , Nova Khaira 
Published: February 2025

Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan jenis litter sekam padi dan serutan kayu di closed house terhadap kadar amonia litter, pH litter, dan suhu litter, serta untuk mengetahui jenis litter yang terbaik dalam pemeliharaan broiler di closed house terhadap kadar amonia litter, pH litter, dan suhu litter. Penelitian ini dilaksanakan 28 Maret—26 April 2022, di kandang closed house Jurusan Peternakan, Fakultas Pertanian, Universitas Lampung. Penelitian ini dilakukan dengan menggunakan metode eksperimental. Perlakuan yang diberikan terdiri atas jenis bahan litter serutan kayu dan sekam padi. Peubah yang diamati meliputi kadar amonia, pH, dan suhu litter. Data yang diperoleh dianalisis dengan menggunakan analisis uji T dengan membandingkan dua perlakuan antara litter serutan kayu dan sekam padi. Hasil penelitian menunjukkan bahwa litter serutan kayu dan sekam padi tidak berpengaruh nyata (P>0,05) terhadap suhu litter, namun berpengaruh nyata (P<0,05) terhadap pH dan kadar amonia pada minggu ketiga dan keempat. Dapat disimpulkan kedua bahan litter serutan kayu dan sekam padi masih memberikan yang baik terhadap kualitas litter.
Pregnancy Outcome in Women with Gestational Diabetes Mellitus: Age and Pre-pregnancy BMI-Matched Prospective Cohort Study in Ulaanbaatar of Mongolia
Authors: Minjuurdorj Nomin-Erdene , Khasag Altasaikhan , Batbold Chuluunbileg , Jamsranjav Enkhtsetseg 
Published: February 2025

Objective: This study aimed to assess maternal outcomes in women with Gestational Diabetes Mellitus. Method: A multicenter, age, and pre-pregnancy body mass index-matched prospective cohort study was conducted in five maternity hospitals across Ulaanbaatar, Mongolia, between February and April 2022. All participants (24-28 weeks pregnant) underwent an oral glucose tolerance test (OGTT; 75 g, oral glucose, capillary), and the results were considered as GDM (ADA, 2022). The GDM and non-GDM groups were followed from pregnancy to delivery. Maternal and neonatal delivery outcome data were extracted from the clinical records of five maternity hospitals. Results: The mean age and pre-pregnancy BMI were 35.05±3.8 years and 26.21±3.7 kg/m2, respectively. According to the univariate analysis, women with gestational diabetes had higher rates of pregnancy-induced hypertension, cesarean delivery, and labor induction than the non-GDM group. On the multivariate analysis, the risk of undergoing cesarean delivery and developing pregnancy-induced hypertension were 2.8 (aOR=2.83 CI=1.07-7.47) and 6.9 (aOR=6.91 CI=1.35-35.23) times higher, respectively, in the case group compared to the non-GDM group. Conclusion: Women with GDM had more complications during pregnancy and delivery than those without.
The Origin Of Electric Charge And Its Relation To Closed And Open Strings In The Early Universe
Authors: McGraw Jr. David 
Published: February 2025

The C-Neutralino, a particle of immense significance, is the primary particle that drives the beginning of our universe. The C-Neutralino decays into other particles, including protons and electrons. The C-Neutralino existed before the beginning of time. They were the catalyst for the start of our universe. As the C-Neutralinos start to collide in the early universe, temperatures rise. When temperatures become as hot 10100 degrees celsus our universe gets its start. We understand this as the Big Bang that happened at the beginning of our universe. The electric charge starts in the early universe during the first few minutes. The first moments after the Big Bang are called the quark-gluon plasma phase. In this phase, there are two different periods. The first period occurs right after the beginnings of the universe. The temperatures are so hot during the first few minutes that the quarks and gluons are strings. The top quark and the antibottom quark are strings during this time in the early universe. As they collide, they start to spin, oscillate, and rotate, becoming one quark. This heavy quark called the cd-quark, was responsible for developing electric charges in the early universe. This change in mass of the cd-quark is the true origin of electric charges. Electric charge is not mass dependent on mass amount but on mass change in the early universe. Charged particles have finite lifetimes. They are not stable like other particles.
On the thermodynamics of homolytic C—H bond cleavage in linear and branched alkanes: Comparison of DFT and composite G4 and G4(MP2) methods
Authors: Štellerová Dagmar , Lukeš Vladimír 
Published: February 2025

Abstract
This work provides a systematic theoretical study on gas-phase bond dissociation enthalpies for homolytic C—H bond cleavage in linear and branched alkanes. Quantum chemical calculations were performed using the density functional theory (DFT) and ab initio composite (G4(MP2), G4) methods. In case of DFT calculations, the M06-2X and B3LYP functionals combined with 6-311++G**, aug-cc-pVDZ, aug-cc-pVTZ, and aug-cc-pVQZ basis sets were covered. In linear molecules, the best agreement with experiment was observed for B3LYP/aug-cc-pVQZ. In both composite approaches, as the number of C atoms increases, the BDE values are affected by the systematic error of the method. For example, G4 BDE of terminal —CH3 group of hexane is 422.6 kJ·mol−1 while for undecane it is 415.5 kJ·mol−1. On the contrary, the composite methods are in better agreement with experiments compared to the DFT approaches for simple branched hydrocarbons.
The Effect of Design and the Accelerated Wear Test of Agricultural Nozzles on the Resulting Droplet Size
Authors: Subr Alaa , Parafiniuk Stanisław , Al-Ahmadi Ameer , Milanowski Marek 
Published: February 2025

Abstract
The change in the size of the droplets during the pesticide application process could have a negative impact on the percentage of drift or the losses of pesticides to the environment. One of the factors that could affect the droplet size produced from a single nozzle is the internal design of the nozzle itself, in addition to the wear of the nozzle orifice as a result of the usage time. In this research, three types of nozzles with different internal designs were used (Turbo TeeJet (TT), Turbo TwinJet (TTj 6011003), and Drift Guard (DG 11003)). The nozzles were subjected to an accelerated wear test for one hundred hours, and different droplet size parameters (Dv 0.1, Dv 0.5, Dv 0.9), relative span (RS), and Sauter mean diameter (SMD) were measured during and after this test. The measurements were made using the Sympatec HELOS-VARIO/KR device in fifteen positions along the spray swath. The results of the study showed that the droplet size (Dv 0.5) generally increased for the DG 11003 and TTj 6011003 nozzles after the accelerated wear test (worn nozzles), while there was a decrease in Dv 0.5 for the TT 11003 nozzles. The DG 11003 nozzles (before and after the wear test) had the highest percentage of droplets with a size smaller than 150 μm (%< 150 μm) compared to the TT 11003 and TTj 6011003 nozzles. Moreover, the %< 150 μm was higher in the middle position of the spray swath for the three types of nozzles and the new and worn nozzles.
The level of motor coordination is associated with sports club participation in late childhood
Authors: Mononen Kaisu , Blomqvist Minna , Konttinen Niilo 
Published: February 2025

Abstract

Study aim: This study examined the associations between gender, the nature of sports club participation, training volume, and motor coordination in late childhood.

Material and methods: 10- to 11-year-old children (n = 900) completed a questionnaire assessing anthropometrics, gender, the nature of sports club participation, and coach-led training volume. The Körperkoordinationstest für Kinder (KTK) test battery was used to evaluate motor coordination.

Results: In total motor quotient reflecting overall motor coordination, no gender differences were found. However, some differences in KTK sub-tests were found. Children participating in sports club activities performed better than their non-participating peers. The mastering of motor coordination was especially apparent in the competing children. Also, the volume of coach-led training was positively associated with motor coordination. Furthermore, participation in sports club activities and a higher level of motor coordination measured in the fourth grade seemed to promote continued sport participation two years later.

Conclusions: Participation in sports clubs, particularly in competitive settings, may play a crucial role in enhancing children’s motor coordination and, consequently, their overall motor competence. This, in turn, may foster greater engagement in physical activity, offering additional opportunities for development of motor competence and health-related fitness. Therefore, sports clubs, in conjunction with non-organized physical activities and unstructured outdoor play, may serve as an essential environment for fostering children’s long-term engagement in an active and healthy lifestyle.
Assessing the Economic and Environmental Advantages of Circular Economy Practices in Civil Construction
Authors: Wimalasena Sulaksha , Upendra Sanath Mahesh , Silva Hashindu 
Published: February 2025

Abstract
The construction industry plays an important part in economic growth but notably contributes to environmental deterioration owing to excessive resource use and waste generation. The implementation of circular economy (CE) principles provides a revolutionary strategy for reducing these unfavourable consequences by encouraging resource efficiency, material reuse, and waste reduction. The article assesses the economic and environmental benefits of principles of CE in civil construction, with a specific emphasis on their use in Sri Lanka. The research contains an analytical examination of current trends, an assessment of economic implications, and an evaluation of environmental sustainability improvements provided by CE adoption. It incorporates global and local case studies to find best practices and obstacles in circular economy implementation. The study technique comprises statistical analysis, including Pearson correlation analysis, to explore links between CE methods such as material recycling, waste management, and energy efficiency. The results demonstrate that CE principles greatly cut operating costs, boost energy efficiency, and minimize carbon footprints. These observations emphasize the significance of concerted efforts among policymakers, industry stakeholders, and regulatory agencies to promote the adoption of sustainable construction practices. The article continues by underlining the significance of organized legislative frameworks and technical advancements to assist the circular transition within the construction industry.
What is the Main Mechanism of Earth’s Temperature Changes?
Authors: Zarzycki Roman 
Published: February 2025

Abstract
The prevailing consensus among most of the society is that the observed increase in global temperature is primarily attributed to greenhouse gas emissions, particularly CO2 resulting from the combustion of fossil fuels. The forthcoming analysis will demonstrate that the primary factors responsible for the Earth’s temperature are changes in the heat flux from the Sun and the heat generated within the Earth. These factors subsequently impact the composition of the Earth’s atmosphere. While human-generated greenhouse gases do contribute to this process, their influence is relatively minor. The results obtained should be crucial in shaping global policies related to industry and the environment.
Estimating the Relevance of First Offensive Shot Tactics in Table Tennis via Simulation Based on a Finite Markov Chain Model
Authors: Rothe F. , Liu R. , Lames M. 
Published: February 2025

Abstract
Finite Markov chain modelling is a commonly used type of stochastic modelling employed in performance analysis of net games. Finite Markov chains are based on a state transition model which can be used to depict the game structure of net games as a succession of states which are defined as equivalence classes for game situations, e.g. service and return. Furthermore, the theory of finite Markov chains allows for the calculation of model variables which are of significant interest not only for validation but also for performance analysis, like wining probabilities or expected rally lengths starting from different states. By simulation, of a more-or-less of tactical behaviors one may study the impact of these tactics on overall success. A novel state transition model for table tennis is introduced in this study as extension of an existing model in the literature containing only the first offensive shot. The new model additionally contains subsequent shots since they may be perceived as being influenced by the first offensive shot. A sample of 105 single matches (49 female, 56 male) at the 2020 Tokyo Olympics was examined. The validation of the Markov property resulted in satisfactory results. The relevance of 26 transitions denoting specific tactical behaviors was obtained using simulation and subsequently compared between sexes. Results provide insights concerning the game structure of table tennis with a particular emphasis on the transition from the initial phase of rallies to the first offensive shot.
Exploring the Labor Market Implications of the Pandemic for Women
Authors: Stănilă Larisa , Belu Maria Berta , Vasilescu Maria Denisa , Militaru Eva 
Published: February 2025

Abstract
The labour market has been profoundly impacted by the pandemic. Efforts to preserve employment during lockdowns have led to a significant shift toward remote work across various sectors, intensifying challenges in balancing work and family responsibilities. Our paper investigates how women were affected by the pandemic in terms of work and family. We rely on data from the Eurobarometer ‘Women in times of COVID-19’ to assess the experiences of women aged 15 and above in the 27 Member States of the European Union. A logistic regression-based approach is employed to evaluate which women were most impacted by the pandemic in terms of labour market participation and income reductions. The results revealed that women in rural areas or those being self-employed were more likely to be vulnerable. Furthermore, women caring for children under 15 encountered substantial difficulties in the labour market. Income reduction and decreased labour market participation were also challenging for women who experienced a negative impact on their mental health due to government measures during the pandemic or those who became more financially dependent on partners or family members.
Gender Gaps in Undergraduate Mathematics Performance in Romania: An Analysis Using General Linear Models
Authors: Perţa Emanuelle-Ioana , Roman Monica , Oana Eugenia 
Published: February 2025

Abstract
This paper investigates gender gaps in mathematics performance among Romanian Baccalaureate students across four educational profiles: Mathematics-Informatics, Natural Sciences, Technological, and Pedagogical, between 2017 and 2023. Using descriptive statistics, and statistical analyses such as t-tests and General Linear Models, the study reveals consistent gender disparities in mathematics performance, with female students generally outperforming male students. The results highlight significant variations in performance across the different educational profiles, pointing to a need for profile-specific educational interventions. The spatial analysis underscores the need for targeted strategies that address not only gender gaps, but also regional inequalities. The findings suggest that Romania’s policy of equal access to education may not fully address the differences in educational outcomes, thereby calling for tailored interventions to bridge the performance gaps across gender, profile, and region.
Understanding Young Informal Workers in the European Union: Pre-Pandemic Labour Market Dynamics
Authors: Aldea Anamaria Beatrice 
Published: February 2025

Abstract
Young people are one of the most important groups in the labour market, but also one of the most vulnerable. They do not find it easy to enter the labour market, which may have a negative impact on the growth of undeclared work among this group. The main objective of this study is to establish a baseline understanding of the situation of young informal workers prior to the pandemic by developing a comprehensive profile of these workers at the EU27 level. This profile is based on statistical analysis of undeclared work data from Eurobarometer 92.1/2019. The results of this study include: the share of young informal workers in the EU27, the types of activities they perform, the sectors of the labour market in which they perform these activities and the reasons why they perform them. By creating this profile, this study aims to contribute to future research that will provide a clearer understanding of how the Covid-19 pandemic has led to labour market changes in youth informality.
Computationally Efficient Model Predictive Control of Delta-Connected CHB-Based Active Power Filter
Authors: Kehl Zdeněk , Glasberger Tomas , Peroutka Zdeněk 
Published: February 2025

Abstract
This paper introduces a novel control strategy for shunt-type active power filters (APF) using a cascaded H-bridge (CHB) topology in a delta connection. The control is tailored particularly for low-cost microcontrollers with limited computation power and resources. The control combines the modified instantaneous active-reactive power (PQ) theory for power grid control and subordinated optimized (two-step) finite control set model predictive control (FCS-MPC) for control of CHB converters. The power grid control generates setpoints for CHB converters, i.e. grid compensation currents and current references securing active power delivery for DC-links of CHB converters of the APF. The two-step FCS-MPC controls the CHBs, generates phase grid compensation currents, and balances the DC-link capacitors of the CHBs. Extensive simulations and experiments on the developed 60 kW prototype of APF validate the proposed control. The results show that the control quality is comparable to the full-state FCS-MPC, while its computation time and complexity are notably reduced.
Further Investigations on Unconventional Slot Numbers in Concentrated Winding Electric Motors: Rotor Eccentricity and Conventional Methods for Torque Ripple Reduction
Authors: Königs Mike , Harmel Michael , Loehlein Bernd 
Published: February 2025

Abstract
Electric motors with unconventional slot numbers, especially prime numbers, have been shown to reduce cogging torque and torque ripple. Our previous study investigated an 8p12s servo motor topology known to be prone to cogging torque and torque ripple; in this publication, the research is expanded to a more robust 10p12s servomotor, including a comparison of the novel unconventional winding with a conventional topology with breadloaf magnets. Furthermore, Finite element method (FEM) simulations with rotor eccentricities are conducted to evaluate the impact of the novel topology on forces and torques under imperfect manufacturing. It is shown that the novel quadruple-layer topology with prime number of slots can effectively reduce cogging torque and torque ripple. Furthermore, the commonly used 10p12s servomotor topology can achieve similar performance using skewing and breadloaf permanent magnets. The novel topology is shown to be prone to torque ripple due to rotor eccentricity. Similar results to conventional concentrated windings can be achieved under imperfect manufacturing conditions.
Attempt at Determination of Susceptibility to Sea Sickness on the Basic of the Autonomic Nervous System Reactions After Excitation of the Vestibular Organ
Authors: Dolatkowski Augustyn , Łokucijewski Bogdan 
Published: February 2025

Abstract
55 men were submitted to examination with method of electric resistance of the skin of the forehead after excitation of the vestibular organ („swing” according to Hulk and Henkes). In group of 43 people with a history of a disposition to sea-sickness, na 28 cases a lowering of electric resistance was stated and in the majotity of cases a simultaneous acceleration of the pulse rate was also observed. In group of 7 people especially sensitive (sweating, turning pale, headache, nausea – the necessity of checking the examination because of vomiting) the lowering of elctric resistance of the skin was stated in 6 cases. 17 people were examined under maritime conditions with the results depending on the method used. It is concluded that the method of vegetative reaction of the vestibular organ may give valuable results in cases of overexcitability of the labyrinth. In other cases consideration should be given to a possibility of an adaptation to sea conditions. The results must be confirmed on larger material.