bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Lama Penyimpanan Telur Herbal Ayam Ras Herbal pada Refrigerator terhadap Penurunan Berat Telur, Diameter Rongga Udara, dan Indeks Kuning Telur
Authors: Nugraha Yoga Indra , Nova Khaira , Septinova Dian , Riyanti Rr
Published: February 2025

Penelitian ini bertujuan untuk: (1) mengetahui pengaruh lama penyimpanan pada refrigerator terhadap penurunan berat telur, diameter rongga udara, dan indeks kuning telur ayam ras herbal, (2) mengetahui lama simpan yang dapat mempertahankan kualitas telur ayam ras herbal pada refrigerator. Penelitian ini dilaksanakan pada Januari--Maret 2024, bertempat di Kampung Baru, Kedaton, Bandar Lampung sebagai tempat penyimpanan telur selama penelitian dan Laboratorium Produksi Ternak, Jurusan Peternakan, Fakultas Pertanian, Universitas Lampung. Materi penelitian menggunakan 100 butir sampel telur ayam ras herbal dengan berat rata-rata 58,6±3,97 g dari ayam ras strain Isa Brown fase kedua (umur 72 minggu). Penelitian dilakukan dengan percobaan Rancangan Acak Lengkap (RAL) yang terdiri atas 4 perlakuan meliputi penyimpanan 0, 12, 24, 36 hari dan 5 ulangan. Setiap satuan percobaan terdiri dari 5 butir telur. Data yang diperoleh dianalisis berdasarkan Analysis of Variance pada taraf nyata 5%. Hasil yang berpengaruh nyata diuji lanjut menggunakan uji Beda Nyata Terkecil (BNT). Hasil penelitian menunjukkan bahwa perlakuan lama penyimpanan telur ayam ras herbal di refrigerator memberikan pengaruh nyata (P<0,05) terhadap penurunan berat telur, diameter rongga udara, dan indeks kuning telur ayam ras herbal. Simpulan pada penelitian ini adalah lama penyimpanan 24 hari memberikan pengaruh terbaik terhadap penurunan berat telur (1,95%), diameter rongga udara (22,1mm), dan nilai indeks kuning telur (0,39) dibandingkan dengan lama simpan 24 dan 36 hari.
Pengaruh Lama Penyimpanan Telur Herbal Ayam Ras pada Suhu Ruang terhadap Penurunan Berat Telur, Nilai Haugh Unit (HU), dan pH Telur
Authors: Damayanti Revina , Nova Khaira , Riyanti Rr , Septinova Dian
Published: February 2025

Penelitian ini bertujuan untuk mengetahui pengaruh lama penyimpanan telur herbal ayam ras pada suhu ruang terhadap penurunan berat telur, nilai haugh unit (HU), dan pH telur dan mengetahui lama simpan yang dapat mempertahankan kualitas telur ayam ras herbal pada suhu ruang. Penelitian ini dilaksanakan pada 29 Januari 2024--27 Februari 2024 di Laboratorium Produksi Ternak, Jurusan Peternakan, Fakultas Pertanian, Universitas Lampung. Penelitian ini menggunakan metode Rancangan Acak Lengkap (RAL) dengan 4 perlakuan lama penyimpanan (0, 10, 20, 30 hari) dan 5 ulangan. Pada setiap perlakuan menggunakan 25 butir telur herbal dengan jumlah seluruh sampel 100 butir telur. Data yang diperoleh diuji sesuai dengan analisis ragam. Hasil penelitian ini menunjukkan bahwa perlakuan penyimpanan telur herbal memberikan pengaruh nyata (P<0,05) terhadap penurunan berat telur, nilai haugh unit (HU), dan pH telur. Lama penyimpanan telur herbal selama 30 hari pada suhu ruang dapat mempertahankan persentase penurunan berat telur, penurunan nilai haugh unit (HU), dan peningkatan pH telur.
EFFECTS OF CASH, ACCOUNTS RECEIVABLE AND CORPORATE PAYMENTS ON PROFITABILITY OF DRINKING WATER SUPPLIES
Authors: Fitriani Dini , Nur Izzati  , Puja Lestari Putri
Published: February 2025

This study aims to find out how cash turnover, receivables, and furniture affect the profitability of the Gapura Tirta Rahayu Purwakarta Regional Public Company for Drinking Water from 2016 to 2021. The profitability reflected in ROA is one of the independent variables in this study, and the dependent variables are cash turnover, billing, and inventory. The causal associative method is used in this quantitative research. This study uses purposive sampling and secondary data. Meanwhile, the data was analyzed using SPPS Version 26, descriptive statistics, multiple linear regression, t-test, f-test, and determination coefficient analysis. The results showed that only one component affected profitability inventory turnover. Profitability is partly influenced by cash and debit turnover. The results of the f test showed that the significance value was 0.035, which was below 0.05, and the f value of 27.883 was below the table f 9.28. As a result, the calculation results showed that Ha was accepted. This shows that the turnover of goods, credit and cash affects profitability simultaneously.
THE INFLUENCE OF LEADERSHIP AND STRATEGIC PLANNING TOWARD LOCAL REVENUE (AT WEST BANDUNG REGENCY)
Authors: Panjaitan Biller , Djogo Ony
Published: February 2025

The goal of this research is to describe the influence of leaderships and strategic planning toward local revenue at West Bandung Regency. Research method is Quantative research and collect data by quessioner, interview, observation and documentation. The variables were leaderships and strategic planning. as the independent variables, the dependent variable was local revenue. Data have been analyzed through (Multiple Regresion). The result of this research showed that leaderships and strategic planning. influence the local revenue The influence of leaderships and strategic planning toward local revenue is positive it means that the more higher leaderships and the strategic planning the more higher local revenue and it has mean in real rank p < 0.01. By this research, the hypothesis, which has been proposed, leaderships and strategic planning will influence local revenue. The result has showed that the mean of local revenue is 0. 4570 or the grade variation of local revenue is 45,70 percent depending on leaderships and strategic planning.
ECONOMIC EMPOWERMENT THROUGH BUYING INTENTION ON ONLINE MARKETING IN INDONESIA
Authors: Setiawan Nugraha Deden Novan
Published: February 2025

Community economic empowerment is an effort to make the economy strong, large, modern and highly competitive in the right market mechanism. The constraints of people's economic development are structural constraints; the empowerment of the people's economy must be carried out through structural change. One of them is structural change through technology by online shopping application. The purpose of this research is to find out how the influence of online marketing variables which consist of Personal Relevance, Online Interactivity, Message, and Brand Familiarity Brand towards buying intention. In this study, researchers took objects on the online shopping application Qlapa.com which specifically sells handmade products. The sampling technique used by researchers is a non-probability sampling technique, because not all samples have criteria which are in accordance with what the researcher determined. Based on the calculations made, the sample used in this study was 100 people. The research method used in this research is quantitative methods. The analysis was conducted using the method of multiple regression analysis to explain the effect of the variables. The problems examined in this study are Personal Relevance (X1), Online Interactivity (X2), Message (X3), Brand Familiarity (X4), and Buying Intention (Y). The results of the study found that simultaneously and partially the variables Personal Relevance, Online Interactivity, Message, and Brand Familiarity have a significant influence on buying intention
MIDDLE ECONOMIC GROWTH TOWARDS TO DEVELOPMENT OF E-COMMERCE IN SOUTHEAST ASIA
Authors: Hastuti Ika Sari , Jauhari Asep Kusdiman
Published: February 2025

The rapid development of information and communication technology has resulted in the emergence of a new economy marked by the phenomenon of internet-based business or e-commerce. The economic growth of the middle class of Southeast Asian people in the digital economy era is moving towards a non-cash transaction system and changing the lifestyle of people who depend on the internet for traveling, shopping and doing business online as well as creating new phenomena for the growth of the e-commerce industry or electronic commerce is attractive and growing rapidly. What is interesting is how the influence of middle class economic growth on the development of e-commerce in Southeast Asia. The method used in conducting this research is descriptive qualitative which aims to describe the phenomenon of the growth of the middle class in the development of e-commerce in Southeast Asia systematically for research and problem solving. The estimation results of this study are that with the increasing number of middle class people who use technology for business activities in the network, the development of e-commerce in ASEAN is marked by the use of electronic payment methods or cashless payments where business transaction processes become more efficient and stimulate economic growth. The emergence of new startups. The challenge for the use of e-commerce is readiness in overcoming problems related to ICT such as cyber security, internet networks and adequate ICT infrastructure. Every country in Southeast Asia has advantages and limitations in the use of e-commerce but digital globalization forces countries in Southeast Asia that are experiencing an economic growth to be prepared to build e-commerce infrastructure, especially for MSMEs by utilizing e-commerce to open new markets that are more and the government must prepare infrastructure and regulations that support entrepreneurs to compete in the current e-commerce era.
BUSINESS PLANNING AT BUMDES SARI LUYU WARNASARI VILLAGE PANGALENGAN DISTRICT, BANDUNG REGENCY
Authors: Kania Trisa Nur , Adnani Latifah
Published: February 2025

The purpose of this research is to analyze the Sari Luyu Village-Owned Enterprise that has been running for 5 years, but does not yet have an independent business because all the business units it works are carried out through business partnerships with villagers who already have a business. Its business activities include: selling melon gas cylinders, beef cattle farms, 2 units of rafting boat rentals, rental of wedding party equipment and circumcision rentals. In the early 2020, BUMDes management Sari Luyu and Warnasari Village Head had thought about the need to start a business unit that would be managed directly by the BUMDes management, which would establish a BUMDes stall which would be located next to the Warnasari village office building. The main factor that caused the emergence of the business idea was because in the village office area there were already potential potential customers, namely community members who came for treatment at the puskesmas and community members who had an interest in the village office as well as a number of people who worked at the Warnasari village office. Another supporting factor is the presence of students in the Warnasari public elementary school, where the location of the school building is right in front of the village office. The research method used was a case study with interviews as technical data collection to informants and non-participant observation as well as literature study. Data analysis uses data credibility, transferability, dependability and confirmability tests. The plan to open a BUMDes stall is expected to further strengthen the position of BUMDes as a reliable business entity in gaining profits for BUMDes because the location is relatively far from other stalls owned by villagers.
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.
Effectiveness of Cognitive Behavioral Therapy on Multi-drug Resistant Tuberculosis Patients in Mongolia: 10 years experiences
Authors: Dashdavaa Dorjmaa , Rash Bolor , Khuyagaa Ser-Od , Purevdagva Anuzaya , Oh Kyung Hyun , Davaasuren Oyunsuren , Dambaa Naranzul , Oidov Baatarkhuu , Zuunnast Khishigsuren
Published: February 2025

Objective: During multidrug-resistant tuberculosis (MDR-TB) treatment, patients face de­pression and anxiety. This study aims to evaluate the effects of cognitive behavioral therapy (CBT) on the psychological status and risk of loss to follow-up (LTFU) during MDR-TB treat­ment in Mongolia. Method: Eligible participants were randomly assigned to intervention and control groups. Intervention group participants underwent CBT, while control group par­ticipants received standard patient education. Psychological status was assessed before and after CBT. MDR-TB treatment outcomes were evaluated as internationally defined. Results: The study included a total of 83 patients. After CBT, depression and anxiety levels decreased by 12% and 16%, respectively, in the intervention group, whereas the control group showed a 4% decrease in depression and an 8.5% increase in anxiety levels. MDR-TB treatment outcomes revealed an 8% higher treatment success rate and a fivefold reduction in LTFU rate in the intervention group compared to the control group. In multivariable logistic regression, risk factors associated with increased LTFU were living alone (OR 12.7, p=0.031) and not being provided CBT (OR 16.1, p=0.040). Conclusion: Our study suggests that CBT not only alleviates these psychological challenges but also diminishes the risk of LTFU during treat­ment, leading to improved MDR-TB treatment success.
Identifying Endometrial Delay Improves Treatment Outcome in Women with Thin Endometrium and Infertility
Authors: Namshir Narangerel , Darmaa Yanjinsuren , Davaatseren Munkhtsetseg , Choi Bum Chae
Published: February 2025

Objective: To determine the impact of endometrial delay on reproductive outcomes.
Method: We enrolled 62 infertility women with thin endometrium pre- and post-study in 2020-2023. Infertile women with an endometrial thickness of <7 mm were included and followed in the study. All participants had endometrial delay determined and adjusted be­fore initial Assisted reproductive technologies (ART). After, infertility treatment was started. ART outcomes were evaluated by endometrial thickness and implantation rate. Endometrial thickness was compared to pre-hormone replacement treatment at 48 and 72 hours post-hor­mone therapy. Results: The study included 62 women aged 26-45 who were diagnosed with infertility and thin endometrium. Endometrial thickness was sufficiently increased before and after treatment for all participants. Histological analysis diagnosed endometrial delay (not ap­propriate WOI) in 73.6% of all women. After adjusting the WOI in study participants, there was a statistically significant increase in endometrial thickness post-hormone replacement therapy. The study participants were women who had failed at least one implantation, and the im­plantation rate after WOI adjustment was 58.5%. Conclusions: In 70% of infertility women, endometrial is delayed. In women with thin endometrium, the precise determination of WOI increases ART treatment outcomes.
Determinants of Attitude Towards Depression and Suicidal Ideation Among Postpartum Women in Southern Nigeria
Authors: Obi Andrew Ifeanyichukwu , Ifeoma Nkem
Published: February 2025

Objective: The objective of this study was to assess the determinants of attitude towards depression and suicidal ideation among postpartum women in Southern Nigeria. Methods: An analytical cross-sectional study using interviewer-administered structured questionnaires involved 480 mothers attending the postnatal clinics at the University of Benin Teaching Hospital, Benin City, Edo State. Data collected was analyzed using SPSS version 25. 0 statistical software with statistical significance set at P < 0.050. Results: The mean age of respondents studied was 31.3 ± 5.7 years. Four hundred and forty-four (92.5%) and 36 (7.5%) respondents had negative and positive attitudes towards depression and suicidal ideation, respectively. Age (OR = 0.809; 95%CI = 0.725 – 0.905; P <0.001), marriage type (OR = 0.177; 95% CI = 0.045 – 0.696; P = 0.013), and skill level (OR = 30.240; 95% CI = 2.991 – 305.78; P = 0.004) of respondents were significant predictors of positive attitude. Conclusion: The majority of respondents studied had negative attitudes towards depression and suicidal ideation. Women should be encouraged to seek professional help when they notice symptoms and signs suggestive of depression and suicidal ideation.
Impact of Oocyte Morphologic Abnormalities on Embryo Development
Authors: Damdinsuren Erdenesuvd , Naidansuren Purevjargal , Choi Bum Chae , Young Park Hyo , Gochoo Mendsaikhan , Baldandorj Bolorchimeg
Published: February 2025

Objectives: This study aimed to investigate the relationship between oocyte morphologic features and embryo development following an Intracytoplasmic Sperm Injection (ICSI) procedure. Methods: In this retrospective study, 485 mature oocytes were obtained from 70 patients undergoing ICSI cycles. Controlled ovarian stimulation was performed using a standard antagonist protocol. Morpho kinetic variables were analyzed using Time-Lapse Monitoring (TLM). The primary outcome measures were fertilization and reasonable embryo rate. Results: The patients’ age ranged from 22 to 45 years (34.9±4.9 on average). From all retrieved MII oocytes, 285 (59.0%) showed at least one morphologic aberration. The organelle cluster and ovoid shape were related to a lower fertilization rate (OR: 0.35 p-value 0,045 and OR:0.137; p-value 0,048, respectively). Time to 5 cells (t5) and time to 7 cells (t7) were different between normal and abnormal morphologic oocytes (P-value 0.016 and 0.017, respectively). Average Oocyte Quality Index (AOQI) negatively correlated with the number of good embryos. Conclusions: In our study, the fertilization potential of organelle clusters and ovoid-shaped oocytes was lower. The t5 and t7 were significantly longer in the abnormal oocyte group.
Religious and Cultural Values In The Mapacci Traditional Of The Bugis Indigenous Community
Authors: Indatono Pulung Revastianto , Rodiah Ita , Aminah Siti
Published: February 2025

The Mappacci ritual contains various symbols related to identity and social status. This process involves a series of actions that aim to physically cleanse the bride and groom and prepare them mentally and spiritually to enter a new phase in their lives. Thus, this study provide deeper insight into how the Bugis community interprets marriage as a sacred institution entirely of responsibility. This research investigates the Mappacci procession, comprehensively including the procedures, the roles of the actors, and the symbolic meaning of each stage of the ritual, along with their relationship to the belief system and social structure of the Bugis tribe. The method employed is a type of field research with a qualitative approach, observations, interviews, and documentation for data collection. Descriptive data analysis techniques are also used. The results of the research show that religious values are found in the Mappacci tradition, namely in the Mappasau Botting procession (taking care of the bride), the Cimme Passilli procession (bathing the bride), and Mappanre Temme (completing the recitation of the Qur'an). In addition, the cultural value in the Mappacci tradition lies in the tools or objects used in the Bugis traditional Mappacci process area, which contain meaning and messages, namely head pillows, Bugis sarongs/silk sarongs, banana leaf shoots, jackfruit leaves, pacci leaves, jasmine rice, candles, brown sugar, coconut, and pacci holders or containers
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

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

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

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

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

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

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

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

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

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

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

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

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.
Diseases of the Nervous System as a Cause of Disability
Authors: Skorupa Aleksandra , Pawłowska Paulina , Nowińska Aleksandra , Nieradko-Iwanicka Barbara
Published: February 2025

Disability, in most cases, is caused by the devastation of the body by a chronic disease or cancer. Therefore, the aspect of prevention is extremely important, which we can only apply with knowledge of the most common diseases leading to disability. It is clear that the number of patients suffering from diseases of the nervous systems is increasing with age. Specifically, we can highlight severe strokes with evident neurological deficits, tumors of the central nervous system, encephalopathies, peripheral nerve damage, neurologic inflammatory diseases, epilepsy, back pain as the most common diseases in the nervous system. Patients affected by these conditions have various levels of disability, which also largely depends on the severity of the diseases at the time of diagnosis.

The main objective of the study was to find what is the incidence of disability certificate issuing due to neurological diseases in Lublin.

Material and methods Data was obtained through query to the Municipal Disability Assessment Centre in Lublin for the period 2006-2021.

Results The highest number of disability certificates due to neurological diseases, as many as 966, was issued in Lublin in 2015. Disability certificates of a moderate degree prevailed. The most numerous group of beneficiaries were people aged 41-60. In the period under study, such a certificate was received mostly by women. Persons with secondary education predominated. The overwhelming majority of these persons were not professionally employed. Analyzing the reasons for issuing disability certificates, the most frequent were diseases of the locomotor system, second were circulatory and respiratory system diseases and third were neurological diseases.

Conclusions Diseases of the nervous system are the 3rd most common cause of issuing disability certificates in Lublin from 2006-2021. The recipients were mainly middle-aged women with a secondary education. The problem is getting more and more common, therefore the prevention is crucial to decrease the number of patients with disability due to the diseases of the nervous system.
Possible Immunomodulating Effect Ketoprofen and Ketoprofen Lysine Salt on the Brain
Authors: Nieradko-Iwanicka Barbara , Ruszel Kinga , Herbet Mariola , Pawłowski Kamil
Published: February 2025

Ketoprofen lysine salt (KL) is a new non steroidal antiinflammatory drug (NSAID) competing with ketoprofen (K) on the market. The former is believed to have gastroprotective properies, the latter to kill acute pain. Many people drink ethanol and use NSAIDs on the days after.The aim of the study was to find out if K and KL have any immunomodulating effect on the brain after ethyl alcohol intoxication in a rat model.

The experiment was carried out on 36 female Wistar rats. Animals were bred at the Experimental Medicine Centre at the Medical University of Lublin. The ethanol, NaCl, K and KL were administered by gavage. The animals were randomly divided into groups of 6.On day 7 all animals were sacrificed. Their brains and blood were collected for laboratory tests.

There were no statistically significant differences in the concentration of IL-10 in the central nervous system between the study groups. We observed a positive correlation between brain IL-10 levels and body weight, also a correlation between brain IL-6 and brain weight. The level of IL-10 in the brain correlated with the concentration of IL-6 of all animals.

Conclusions KL and K have some immunomodulating effect on the brain. There is a positive correlation between the level of IL-6 and IL-10 in rat brains.
Geoinformation modelling of the watershed area of small and medium-sized rivers for environmental audit
Authors: Iryna Omelych , Natalia Neposhyvailenko , Krzysztof Bakuła , Stephen Mykhalevych
Published: February 2025

Developing and improving environmental audit methodologies is integral to natural resource management. This paper presents an innovative approach to studying and analysing anthropogenic impacts on the territories whose boundaries are limited by the watershed area of a small or medium-sized river. Using geoinformation technologies and high-resolution digital elevation models allowed us to create an accurate geospatial model of anthropogenic transformations of the Oril River watershed area within the Dnipropetrovsk region (Ukraine). The proposed approach to identifying potentially hazardous objects is based on surface slopes and their distance from the riverbed within the watershed area. Based on the modelling results, a refined watershed area of the Oril River with a total area of 11.1 thousand square kilometres was developed. Digitalisation and categorisation of anthropogenically transformed lands allocated for residential development, industrial enterprises, farms, agricultural land, roads, and railwayswithin the Oril River watershed in the Dnipropetrovsk region (3963 km2) were conducted. It was found in the investigation that 79% of the study area comprises anthropogenically transformed land primarily used for agricultural and industrial activities. The modelling results underscore that agricultural activity serves as the principal source of anthropogenic pressure on the ecosystems of the studied area. The proposed improvements to the environmental audit methodology can be used in developing regulations to limit the negative impact of economic activity on the environment. This will ensure the region’s sustainable development and fulfil Ukraine’s obligations to preserve natural resources including international standards. The conclusions of the article point to the need to further improve the tools for assessing anthropogenic impact and planning environmental protection measures.
Socio-Environmental Analysis in the Nigua Basin: Foundations For the Integrated Management of Its Natural Resourcesenglish Title
Authors: Maldonado-Santana Casimiro , Duval Juan Luis Ramírez , Billini Carol Franco , Jauregui-Haza Ulises Javier
Published: February 2025

Objective: This work analyzes the Nigua River basin, located in the province of San Cristóbal, Dominican Republic, highlighting its socio-environmental and historical relevance.
 
Theoretical Framework: The research analyzes key studies from the last decade on the Nigua basin, focusing on land use, ecosystem services, climate change and governance. It proposes a comprehensive approach that includes the restoration of degraded areas, sustainable agriculture, mining regulation and strengthening governance. It also highlights the importance of involving local communities, promoting environmental education and environmental education.
 
Method: The evaluation of the surface environment of the basin was carried out qualitatively through field work, satellite images and processing tools. Base cartography from the Ministry of the Environment and the National Institute of Hydraulic Resources was used. To evaluate the environmental condition of the Nigua River basin, the DPSIR (Drivers, Pressures, States, Impacts, Responses) model was applied, analyzing environmental problems from five aspects: driving force, pressure, state, impact and response.
 
Results and Discussion: The basin, known for its biodiversity and cultural wealth, faces significant environmental challenges such as deforestation, water pollution, soil erosion and indiscriminate extraction of construction materials. Through a comprehensive diagnosis, problems were identified in the management of its natural resources and the lack of a sustainable comprehensive management model.
 
Research Implications: It is emphasized that the comprehensive management of the Nigua basin is essential to preserve its ecological integrity, ensure equitable access to water and guarantee the well-being of dependent communities.
 
Originality/Value: This research analyzed the natural resources of the Nigua basin, seeking to promote social well-being and support sustainable economic development.