bluuebunny/crossref_metadata_2025 huggingface dataset:
DIRECT EFFECT OF COMORBID MENTAL DISORDERS ON THE CLINICAL COURSE OF ALCOHOLISM
Authors: Axmadjonovich Gaybiyev Akmal , Mirxamzayevna Mamurova Mavludaxon , Temirpulotovich Turayev Bobir
Published: February 2025

Objective: This study focuses on the growing concern of mental disorders combined with alcohol addiction, highlighting the need for medical examination by both narcology and psychiatry specialists. The objective is to explore the challenges related to the prevention, treatment, and rehabilitation of this comorbid condition. Methods: A comprehensive review of existing research and clinical practices was conducted, with an emphasis on the collaboration between narcologists and psychiatrists in managing patients with this dual diagnosis. Various case studies and treatment protocols were analyzed to understand the multidisciplinary approach required for effective care. Results: The study reveals significant complexities in treating individuals with both mental disorders and alcohol addiction. The findings suggest that integrated care from both narcology and psychiatry specialists leads to better patient outcomes. However, challenges remain in providing effective prevention and rehabilitation strategies due to the multifaceted nature of the disorder. Novelty: This research introduces a novel perspective on the importance of a dual-specialist approach to managing comorbid mental health and alcohol addiction issues. It emphasizes the need for a more unified and collaborative treatment framework that can address the intertwined nature of these conditions.
PHARMACOEPIDEMIOLOGICAL BASIS FOR THE USE OF ANTIBACTERIAL DRUGS FOR COMMUNITY-ACQUIRED PNEUMONIA IN CHILDREN OF DIFFERENT AGES IN A MODERN INTERPRETATION
Authors: Shakhlo Salokhitdinovna Kodirova
Published: February 2025

Objective: This study addresses the urgent issue of rational antibiotic therapy for pneumonia, focusing on improving the effectiveness of treatment and minimizing negative consequences. Despite the availability of various antibacterial agents, pneumonia incidence and complications continue to rise. Methods: The study examines two main trends in antibiotic selection for pneumonia: 1) the use of selective drugs to ensure a rational and cost-effective approach, minimizing disruption to the patient's saprophytic flora, and reducing the risk of superinfection and immunosuppressive effects; 2) empirical prescription of broad-spectrum antibiotics. Results: Findings highlight the effectiveness of selective antibiotics in reducing adverse outcomes, while broad-spectrum antibiotics are commonly used in empirical treatments. However, overuse of broad-spectrum agents may lead to resistance and other complications. Novelty: The research emphasizes the importance of rational antibiotic selection, advocating for selective drugs over broad-spectrum antibiotics to reduce the risk of resistance, improve patient outcomes, and avoid unnecessary side effects. This approach proposes a more targeted and economical method of managing pneumonia, offering a potential solution to the rising incidence and worsening consequences.
CLINICAL MANIFESTATIONS OF NEUROLOGICAL DISORDERS OBSERVED IN ALCOHOLISM
Authors: Dilnoza Hamidullayevna Xushvaktova
Published: February 2025

Objective: This study aims to explore the neurological characteristics in patients with alcohol dependence, emphasizing the impact of alcohol abuse on their social adaptation. Methods: A comprehensive analysis was conducted, focusing on patients with alcohol dependence, including detailed neurological assessments and behavioral observations. Data collection involved patient histories, clinical examinations, and standardized tests for neurological dysfunction. Results: The findings highlight a significant relationship between alcohol abuse and neurological impairments, including cognitive deficits, motor dysfunction, and mental health disturbances. These impairments are linked to the disruption of social functioning, contributing to challenges in social adaptation for these individuals. Novelty: This research presents a unique perspective on the neurological manifestations of alcohol dependence, focusing on the combined effect of ethanol's pharmacological activity and its influence on the nervous system. The study also sheds light on the broader societal implications, particularly regarding social adaptation challenges faced by patients.
RISK FACTORS FOR THE DEVELOPMENT OF RENAL PATHOLOGY, CARDIOVASCULAR AND CEREBROVASCULAR SYSTEMS
Authors: Malikaxon Mirxamzayevna Mamurova , Mavludaxon Mirxamzayevna Mamurova , Bobir Temirpulotovich Turayev
Published: February 2025

Objective: This study aims to identify and analyze common risk factors contributing to the development of renal pathology, cardiovascular diseases, and cerebrovascular disorders, highlighting the interconnected pathophysiological mechanisms among these systems. Method: A comprehensive literature review and comparative analysis were conducted to examine the overlapping pathogenetic pathways and shared risk factors across renal, cardiovascular, and cerebrovascular conditions. The study synthesized data from peer-reviewed articles, clinical studies, and epidemiological reports to identify key mechanisms influencing disease progression. Results: The analysis revealed that risk factors such as hypertension, diabetes mellitus, dyslipidemia, smoking, and chronic inflammation are common to all three systems, contributing to endothelial dysfunction, atherosclerosis, and impaired vascular regulation. These shared mechanisms underscore the parallel progression of pathology within the brain, heart, and kidneys, increasing the susceptibility to comorbid conditions. Novelty: This study provides new insights into the integrated pathophysiological processes linking renal, cardiovascular, and cerebrovascular diseases, emphasizing the need for holistic prevention strategies and multidisciplinary management approaches to address these interrelated health risks effectively.
ASSESSMENT OF THE QUALITY OF LIFE OF PATIENTS WITH DIFFUSE TOXIC GOITER AGAINST THE BACKGROUND OF DRUG THERAPY AND SURGICAL TREATMENT
Authors: D.A Urunbayeva , D.T Umarova , A.E Bashirova
Published: February 2025

Objective: This study aims to evaluate the quality of life in patients with diffuse toxic goiter (DTG) undergoing drug therapy and surgical treatment. It also seeks to identify key predictors of complications associated with DTG. Methods: The study involved patients diagnosed with DTG, assessing the prevalence of subclinical and manifest thyrotoxicosis. The analysis focused on the impact of disease duration on complications such as thyrotoxic heart disease, endocrine ophthalmopathy, and toxic hepatitis. Additionally, the quality of life was compared between patients receiving thyroidectomy and those undergoing drug therapy with thyreostatics. Results: Findings indicate that DTG is more prevalent in women than men. Among the patients, subclinical thyrotoxicosis accounted for 66.7%, while manifest thyrotoxicosis was 33.3%. Disease duration was a critical factor in the progression of complications. Patients who underwent timely thyroidectomy exhibited better quality of life outcomes. Physical functioning improved by 23%, while emotional functioning, mental health, and social functioning increased by 40.7%, 22.5%, and 30.7%, respectively, compared to those receiving drug therapy. Novelty: This study highlights the significant role of thyroidectomy in improving the quality of life for DTG patients compared to drug therapy. It also emphasizes the predictive value of disease duration in the development of DTG-related complications, contributing to better clinical decision-making.
ԻՐԱԶԵԿՈՒԹՅԱՆ ՍՈՑԻԱԼ–ՄՇԱԿՈՒԹԱՅԻՆ ՊԱՅՄԱՆՆԵՐԸ ԲՈՒՀՈՒՄ
Authors: Momeni Mehrdad
Published: February 2025

The article discusses the application of new socio-cultural mechanisms for ethnoconscious development within the educational system in terms of raising awareness of the interaction of arts.
In this context, issues related to informing the subjects of the educational process about the new pedagogical system become particularly urgent. Most researchers have attempted to define the term "awareness," reveal its essence, determine its role in the educational process, and identify the conditions and factors influencing its effectiveness. Socio-cultural activity is an organized process of upbringing, teaching, and developing an individual, aimed at the assimilation of national culture, the formation of ethno-consciousness, national value orientations, and worldview.
APICULTURE AS A LIVELIHOOD ACTIVITY IN MAYO DARLE, CAMEROON: A SUSTAINABLE LIVELIHOOD FRAMEWORK ANALYSIS
Authors:   University of Fort Hare, South Africa, Neba William Shu , Shillie Peter Ngek ,   College of Technology, University of Bamenda, Cameroon, Sevidzem Ernestine Leikeki ,   Bamenda University of Science and Technology (BUST), Cameroon, Tanga Pius Tangwe ,   University of Fort Hare, South Africa
Published: February 2025

Beekeepers in Mayo Darle consider beekeeping to diversify their income sources. Nonetheless, this agricultural sub-sector is confronted with so many challenges ranging from limited knowledge and skills in production, pests and diseases, the dominance of informal sales channels, and poor-quality products are key challenges in production and marketing that affect the livelihoods of beekeepers. The main objective of this study was to explore the impact of beekeeping on people's livelihoods in the Mayo Darle Sub-Division of Cameroon. Specifically, the goal was to analyzed the financial benefits of beekeeping alongside its impact on the human, natural, social, and physical capital of beekeepers in Mayo Darle. The explanatory-sequential method was employed. Fundamental information was collected using a structured questionnaire and comprehensive interviews. A total of 175 surveys were conducted using stratified simple random sampling. The information was supplemented by secondary sources from both published and unpublished resources. Both descriptive and inferential statistics were utilized. The research results regarding the effects of beekeeping on livelihoods indicated an increase in financial, human, natural, social, and physical capital. The results from Spearman's Product Moment Correlation indicate a notable positive association between the number of bee hives owned by a farmer and the age of a farmer (r(n= 175) = 0.25, p = 0.001), the number of bee hives held by a farmer and the household size (r(n= 175) = 0.308, p = 0.000), as well as the number of bee hives held by a farmer and monthly income (r(n= 175) = 0.248, p = 0.001). The empirical research findings show that beekeeping has beneficial effects on the lives of beekeepers and should therefore be encouraged as a livelihood option in the Mayo Darle Subdivision. Essentially, the results of this research will offer valuable knowledge regarding the impact of beekeeping on livelihoods in Mayo Darle Sub-Division for groups advocating beekeeping and environmental conservation, beekeepers, and other farmers, and will guide policy to enhance management of these impacts, leading to better beekeeping methods.
Key words: Adamawa Region; Apiculture, Livelihood Effects, Mayo Darle Sub-Division, Cameroon.
DEKULAKIZATION POLICY IN KYRGYZSTAN AND KAZAKHSTAN: A COMPARATIVE ANALYSIS
Authors:   Kyrgyz-Turkish Manas University, Altymyshova Zuhra , Mamadalieva Aisuluu
Published: February 2025

The paper examines the specifics of the implementation of the dekulakization policy in Kazakhstan and Kyrgyzstan in the context of Soviet collectivization in the 1920s and 1930s. The main focus is on a comparative analysis of the process of dekulakization, economic, social and cultural conse-quences of this policy in the two republics. The work also examines the key mechanisms of dekulakiza-tion, the scale of repression, the reaction of the local population, as well as the influence of national and regional characteristics on the course and consequences of the policy. Based on the analysis of archival documents, statistical data and scientific publications, it is revealed how dekulakization affected the transformation of the agricultural sector, migration processes and the demographic situation in the region. The results obtained demonstrate that the policy of dekulakization had a devastating effect on traditional economic structures, causing large-scale demographic, social and cultural changes.
The processes of development of historical science in the post-war years
Authors:   E. A. Buketov Karaganda University, Tokasheva Aisulu
Published: February 2025

The article of 1941-1945 examines the trends and tendencies of the post-war history of Kazakhstan. Purpose and objectives. The main purpose of the research article is to compare the complex changes and trends in the development of the post-war history of Kazakhstan, a historiographical as-sessment of the research work of that time. To do this, an analysis of the main problems of the history of Kazakhstan in the 1950s was carried out, paying attention to the established trends and trends. Result. In the research article E. Bekmakhanov, A. Nusupbekov, S. B. Baishev,S. A. Neishtadt, B. N. Abisheva, M. H. Asylbekova, N. G. Pana, S. B. Nurmukhamedova, V. K. Savosko, R. B. Suleimenova, A. E.’s research is considered.Zhanova. In addition, Kazakh–Russian relations of the XVIII-XIX centuries, industrial his-tory and social, social, and economic relations of the Republic were studied. Conclusion. The research article focuses on changes and complex turns in the history of Kazakhstan, and examines scientific direc-tions.
Estrategia didáctica para personalizar el aprendizaje universitario en la era digital
Authors: Santos Mera Lisbeth Madelayne , Solórzano Alcívar Emili Alejandra , Santos Mera Valeria Viviana , Giler Cevallos Eduardo Iván
Published: February 2025

La presente investigación analizó la implementación de una estrategia didáctica para personalizar el aprendizaje universitario mediante tecnologías digitales. Se empleó un enfoque cualitativo con diseño descriptivo-exploratorio, aplicando un cuestionario estructurado a estudiantes de la carrera de Educación de la Universidad Estatal del Sur de Manabí. Los resultados evidenciaron una percepción positiva hacia la integración de tecnologías digitales en la personalización del aprendizaje, un impacto significativo de las metodologías activas en la motivación estudiantil, y una aceptación moderada del uso de plataformas LMS e inteligencia artificial en el proceso educativo. La estrategia diseñada se fundamentó en tres pilares: uso de tecnologías digitales, metodologías activas y evaluación personalizada, proporcionando un marco sistemático para la adaptación del proceso educativo a las necesidades individuales de los estudiantes. Esta investigación se vincula con el Proyecto de Vinculación: Tareas dirigidas y apoyo psicopedagógico para fortalecer el aprendizaje de los alumnos en la Educación Básica Pública de Jipijapa, Fase II 2024, y complementa el Proyecto de Investigación: Perfeccionamiento de las Prácticas Pedagógicas en las Instituciones Educativas de la Zona Sur de Manabí, contribuyendo al desarrollo de prácticas educativas innovadoras que responden efectivamente a las demandas de la era digital.
PENGARUH PERGANTIAN MANAJEMEN, FINANCIAL DISTRESS DAN OPINI AUDIT TERHADAP PUBLIC ACCOUNTANT SWITCHING DENGAN VARIABEL PEMODERASI UKURAN PERUSAHAAN (EMITEN BASIC MATERIALS DI BURSA EFEK INDONESIA PERIODE 2021-2023)
Authors: Wijayanti Yulia , Mukti Aloysius Harry , Eprianto Idel
Published: February 2025

This study aims to test and analyze the Effect of Management Change, Financial Distress and Audit Opinion on Public Accountant Switching with the Moderating Variable of Company Size. The population in this study is the Basic Materials Issuers of the Indonesia Stock Exchange for the 2021-2023 Period. The sampling technique used is the purposive sampling method and obtained 61 company samples. The analysis methods used are Descriptive Statistical Analysis, Logistic Regression Analysis, Hypothesis Testing and Moderation Regression Analysis. The results of this study indicate that partially Management Change has a positive effect on Public Accountant Switching and the variables Financial Distress and Audit Opinion do not affect Public Accountant Switching. The results of the study for the moderating variable, namely Company Size, are able to moderate (weaken) the positive effect of Management Change on Public Accountant Switching and Company Size is unable to moderate Financial Distress and Audit Opinion.
PENGARUH KUALITAS PRODUK DAN LOKASI TERHADAP KEPUASAN PELANGGAN MELALUI MINAT BELI PROPERTI GRAND DUTA CITY BEKASI PADA PT PANEN PROPERTI INDONESIA
Authors: Wardhani Dian Kusuma , Hadita Hadita , Winarso Widi
Published: February 2025

Penelitian ini bertujuan untuk menganalisis dampak kualitas produk dan lokasi terhadap kepuasan pelanggan, baik secara langsung maupun melalui minat beli, pada properti Grand Duta City Bekasi yang dikelola oleh PT Panen Properti Indonesia. Penelitian ini menggunakan pendekatan kuantitatif menggunakan metode SEM-PLS (Modeling Equation Structural-Partial Least Square). Data dikumpulkan melalui kuesioner yang dibagikan kepada 120 orang, termasuk penghuni dan potensial pembeli properti di Grand Duta City Bekasi. Hasil penelitian menunjukkan bahwa kualitas produk dan lokasi berpengaruh positif dan signifikan terhadap minat dan kepuasan pelanggan untuk membeli barang. Selain itu, terbukti bahwa minat beli merupakan faktor mediasi penting dalam hubungan antara kualitas produk, lokasi, dan kepuasan pelanggan. Hasil ini mendorong PT Panen Properti Indonesia untuk terus meningkatkan kualitas produk dan memilih lokasi yang strategis guna mendorong minat beli dan kepuasan pelanggan
Exploring the Perceptions of Customers Regarding the Impact of Multi-Channel Advertising on Satisfaction Levels
Authors: Saleem Rakshanda , Manzoor Saima , Shah Zebish , Maryem Anoosha , Saleem Bilal
Published: February 2025

The current society relies heavily on technology. As such, today's business organizations have turned to complex communication strategies, including social media, e-mail, television, and online media, to target their audience. Hence, by examining these customers' experiences and feelings, the current research aims to shed light on how these advertising strategies influence overall satisfaction. This research uses face-to-face interviews as an essential data collection technique for eliciting the richness of the customers' attitudes towards these multiple-channel marketing strategies. Since the study targets a small number of customers, taking 15 participants from different backgrounds, the study focuses on qualitative data collection and analysis that captures more of the participants' perceptions and gives insights into the viewpoints of the numerous customers in Sargodha City. Early observations propose that customers' attitudes toward Multi-Channel advertising depend on clear message(s), appealing content(s), and ease of accessing data. Besides considering the satisfaction factors of multi-channel advertising, this study also investigates possible issues or drawbacks that multi-channel advertising may experience, like information overload or data privacy, that can lower the satisfaction level. Therefore, this study is significant in showing the customers' satisfaction with multi-channel advertising across the phases and highlighting potential challenges. Similarly, the findings contribute to academia and industry by extending knowledge about the qualitative aspect of customer satisfaction regarding multi-channel advertising to establish improved advertising strategies that meet consumers' needs and expectations.
Intervenciones basadas en la comunidad para la prevención de enfermedades crónicas. Revisión sistemática [Community-based interventions for the prevention of chronic diseases. Systematic review]
Authors: González-Cano Jonathan Alexander
Published: February 2025

Objetivo: analizar intervenciones basadas en la comunidad para la prevención de enfermedades crónicas. Método: Revisión sistemática PRISMA. Se procesaron 30 articulos como población final, ubicados en base de datos como: Scopus, PubMed, Web of Science. Resultados y conclusión: Las intervenciones comunitarias representan una estrategia fundamental en salud pública para la prevención y manejo de enfermedades crónicas y transmisibles, al fomentar estilos de vida saludables y reducir factores de riesgo. Programas integrales que involucran escuelas, familias y comunidades han demostrado efectividad en la prevención de la obesidad infantil, mientras que las estrategias culturalmente adaptadas y el uso de tecnologías han optimizado el control de enfermedades como la diabetes y la hipertensión. Asimismo, los trabajadores comunitarios de salud desempeñan un rol estratégico al fortalecer el vínculo entre las comunidades y los sistemas de salud, promoviendo la adherencia a los servicios y la participación activa.
The role of customary law in Environmental Conservation: A Case Study in Dayak Indigenous communities
Authors: Khuan Hendri , Sesario Revi , Kurniawan Andi
Published: February 2025

This research examines the role of Dayak customary law in environmental conservation, focusing on sustainable natural resource management. It explores how practices such as land-use restrictions, sacred forest protection, and conservation rituals contribute to ecosystem preservation. The study also identifies conflicts between customary law and national policies, particularly regarding land tenure and resource exploitation by industries. Using a normative legal approach, the research analyzes Indonesia’s legal framework, including the 1945 Constitution, the Forestry Law, and the Environmental Protection Law. Through case studies in Kalimantan, the study highlights the effectiveness of these practices in conserving the environment. The findings indicate that while customary law plays a crucial role in conservation, its potential is hindered by insufficient recognition and alignment with national laws. The study recommends enhancing the formal recognition of customary law through clearer legal frameworks, improving collaboration with local governments, and providing capacity-building programs for indigenous communities to ensure sustainable resource management.
MÖ 7.binyıl Sonunda Anadolu da İklim Değişikliği ve İnsan Etkileşimi: Bölgelerarası Bir Değerlendirme
Authors: Göz Burhan
Published: February 2025

MÖ 7.binyılın son çeyreğinde etkili olan 8.2 ka iklim değişikliği ile çağdaş kültürel süreci, Anadolu kapsamında bölgesel farklılıklara göre ele alan bu çalışma, iklim değişikliğine verilen kültürel tepki/tepkisizliğe dayalı olarak iki bölgeli bir ayrım önermektedir. Bunlardan ilki Güneydoğu ve Orta Anadolu’yu kapsamaktadır. 8.2 ka sırasında soğuk ve kurak koşulların etkili olduğu bu bölgelerde insan topluluklarının pastoral bir yaşam biçimini benimseyerek daha yoğun bir etkileşime girdikleri görülmektedir. Söz konusu bölgelerde bazı yerleşimleri terk eden toplulukların aksine, süreklilik gösterenlerin organizasyonunda depolama birimleri önem kazanmıştır. Bu değişimlerin bölge topluluklarının iklimsel dalgalanmalara karşı bir direnç stratejisi olarak değerlendirilmesi mümkündür. İkinci bölge doğudaki kısmî terkle de ilişkili şekilde yoğun insan hareketliliğinden kaynaklı bir beşerî krizle karakterize olmaktadır. İklimsel koşulların görece daha sürdürülebilir olduğu bu bölgelerde bahsi geçen durum kendini, MÖ 6100-6000 arasında yerel toplulukların yerleşimlerini terki ve sonraki evrede ortaya çıkan savunma duvarları, artan yerleşim sayısı ile daha farklı bir kültürel manzaranın ortaya çıkmasıyla da göstermektedir.
Calculating the Age of an Olive Tree
Authors: İplikçi Ali Ertan , Akyalçın Kaya Dilek
Published: February 2025

This study presents a mathematical model developed to estimate the age of olive trees in a specific region. The decline of ecological systems has heightened concerns about the future of agricultural production. Changes in olive trees due to global warming provide essential information for environmental and ecological studies, making the sustainability of olive production critically important. Determining olive tree age is central to this effort. Previous studies have clearly demonstrated the limitations of annual growth rings and radiocarbon tests in determining the age of olive trees. To address these challenges, we propose a mathematical model based on dendrometric variables to determine olive tree age, providing a practical and less invasive approach to tree age estimations. Rather than determining the exact age of olive trees, our model aims to define an average age range. This model will help identify olive trees that should be prioritized for genetic resource research, cultural heritage preservation, conservation and archaeological studies.
Work-related Stress and Coping Mechanism among Bureau of Fire Protection Personnel in Bacolod City
Authors: Rosco Vincent Benedict , Del Carvajal Paulo , Montaño Harvey , Tajonera Chris Feli Joy , Dequilato Loriejen
Published: February 2025

What happens when our rescuers need rescuing after work? Studies show that firefighters most likely encounter different work-related stressors, especially ones that cause Post-traumatic Stress Disorder, among others. This study deals with quantitative research utilizing a survey method that measured the work-related stress and coping mechanisms of Bureau of Fire Protection personnel in Bacolod City. Seventy Bureau of Fire Protection personnel employed for the year 2019 at seven sub-stations were chosen to answer a questionnaire prepared by the researchers. The results revealed that the level of work-related stress is generally moderate. The same level was shown when the respondents were grouped according to age, sex, years of service, family income, and educational attainment. The levels of coping of the respondents in terms of active coping and acceptance coping are generally high but moderate in passive coping and avoidance coping. Moreover, low avoidance coping was shown in respondents serving five years or less and those taking or with a master’s degree. Furthermore, there are no significant differences among the respondents’ work-related stress levels. No significant differences were present in the respondents’ active, passive, acceptance, and avoidance coping levels. No significant relationships between work-related stress and active, passive, and avoidance coping were shown in correlation. Meanwhile, a significant relationship was noted between work-related stress and acceptance coping. In conclusion, the respondents’ results showed that firefighting personnel accept the consequences of their jobs as they move on to another day serving and protecting the community.
Synthesis of Cellulose Nanofiber from Cogon Grass (Imperata cylindrica) for Bioplastic Production
Authors: Abkilan Mary Novel , Atilano Lourel Nicole , Monton Araezza Ella , Gomez Lovely Charmaine , Khater Ashraf
Published: February 2025

The dependence and reliance on lightweight materials, generally plastics, for many applications has resulted in global plastic pollution and consequent environmental effects. The situation of marine garbage pollution in the Philippines is critical and concerning. Manila Bay and Pasig River, two common bodies of water in the country, are reported to be extensively polluted by plastics. With this problem, the researchers conducted a study to address the issue of water pollution caused by discarded plastics in the Philippines by utilizing cellulose nanofiber (CNF) extracted from cogon grass and reinforced with polyamide-6 (PA6) to improve the characteristics, especially biodegradability, of plastics. A percentage ratio of 60:40, 70:30, and 80:20 was used for the mixture of CNF and PA6, and outstanding tensile characteristics were found. Based on their tensile strength performed using PASCO – Wireless Force Acceleration, Sample 2 (70:30) exhibits better tensile strength than Sample 1 (60:40). Meanwhile, a T-test for independent samples was used to determine the significant difference in the tensile strength between the samples of bioplastic and commercial plastic. Results showed that Sample 2 has a higher tensile strength than Plastics. Additionally, samples 1 and 2 had a rate of weight loss of 14.81% compared to the 0% weight loss of commercial plastic within seven days. The significant difference in weight reduction between trials was determined using a one-way analysis of variance (ANOVA). There was no significant difference in the weight loss between the samples. It shows that both models have the same biodegradability.
Incidence Rates of Diseases and Injuries in Select Climate- Change-Vulnerable Coastal and Inland Communities
Authors: Khater Ashraf , Guevarra Tiffany Pearl , Herbolario Jude Xerxes , Lachica Anamae , Balinas Carryl Joy , Secondes Mona Freda , Menes Carmen
Published: February 2025

This descriptive-analytical research aimed to examine the incidence rates of five (5) categories of medical concerns in representative urban, rural, inland, and coastal areas of Negros Occidental: waterborne diseases, cardiopulmonary incidents, nutritional deficiencies, parasitic infections, and accidents and injuries. A series of medical missions was conducted between February 23 and 25, 2019 for patients in Brgy. Lopez Jaena, Murcia, Brgy. Cadiz Viejo, Cadiz City, Brgy.40, Bacolod City, and Purkos Seaside and Crossing 8 of Brgy. Sum-ag, Bacolod City. A total of 573 patients from the 4 barangays were examined by medical and allied health professionals. Medical history specific to climate change-vulnerable diseases was collected from patient-participants with written and informed consent or assent. Results showed that there were relatively high incidence rates for waterborne diseases (48.17%) and cardiopulmonary incidents (76.44%) among patient- participants. Results also showed that accidents and injuries were more likely to occur in coastal areas (8%) compared to inland areas (3%). The elderly or those aged above 64 years old were more vulnerable to climate change with a significantly higher incidence rate for cardiopulmonary diseases (96%) than any other age group.
Media Exposure and Quality of Life of Young Adults in Bacolod City
Authors: Pradela Dorothy , Castillo Alexandrea Faith , Zambales Allia Angel Lough , Magallanes Celo
Published: February 2025

The COVID-19 pandemic and the transition of physical activities to online increased the public’s media dependency. Young adults in this generation are highly exposed to media platforms, including but not limited to entertainment, recent news, and social connectedness. This study aimed to identify the Quality of Life and Media Exposure of Young Adults in Bacolod City. This study combines descriptive, comparative, and correlational quantitative research design to identify the participant’s media exposure and the status of their quality of life. The researchers used standardized questionnaires, the Quality of Life Scale from the World Health Organization, and the Content-Based Media Exposure Scale to assess the respondents. A total of 395 young adults responded to the questionnaires. Overall, the results show no relationship between Media Exposure and the Quality of Life of the young adults who reside in Bacolod City. However, there is a correlation between screen time and media exposure. A total of 70.6% responded to having less than 5 hours of media exposure, and only 29.4% responded to using more than 5 hours of media exposure. Therefore, there is an average effect on media exposure when the participants utilize longer screen time. The COVID-19 pandemic highly affected the study results as minimal physical contact was implemented throughout Bacolod City. The researchers recommend that future researchers interested in this topic thoroughly identify specific domains to explain further how these variables affect one another.
Aplicación didáctica de GeoGebra para el desarrollo del pensamiento lógico matemático de los estudiantes
Authors: Párraga Mendoza Juan Carlos , Párraga Quijano Orlando Francisco
Published: February 2025

El objetivo del estudio es analizar la aplicación didáctica de GeoGebra para el desarrollo del pensamiento lógico matemático de los estudiantes, en su desarrollo se identificaron las características de GeoGebra para el aprendizaje de las matemáticas, establece la importancia del desarrollo del pensamiento lógico matemático y se propone una metodología para la aplicación didáctica de la herramienta.  La metodología presenta un enfoque mixto, las técnicas utilizadas fueron la encuesta y observación a estudiantes. Y la entrevista a los docentes.  La población correspondió a los 26 estudiantes de Primero de Bachillerato y dos docentes del área de Matemática de la Unidad Educativa Membrillo, en la que se diseñaron tres actividades enfocadas en el desarrollo del pensamiento lógico matemático de los estudiantes. Se concluye que de GeoGebra favorece el desarrollo del pensamiento lógico matemático al mejorar la resolución de problemas de forma activa, aporta a la comprensión conceptual para un aprendizaje más holístico de los conceptos matemáticos y favorece al razonamiento lógico.
SOHO/ERNE PROTON FLUENCE IN SOLAR CYCLES 23 AND 24
Authors: Miteva R. , W. Samwel S. , Dechev M.
Published: February 2025

The focus of this study is on solar proton events detected by the SOHO/ERNE instrument during solar cycles (SC) 23 and 24. We select the output produced by the first channel of the high energy detector or at about 15 MeV. This report presents the distributions of the onset-to-peak proton fluences, in terms of their strength, location of their solar origin and mutual correlations, well as the SC trends.
COLUMN DENSITY DISTRIBUTIONS FROM DECOMPOSED MAPS OF STAR-FORMING REGIONS
Authors: Marinkova L. , V. Veltchev T. , Donkov S.
Published: February 2025

Probability distribution functions of mass- (ρ-PDF) and column density (N - PDF) in star-forming regions often display one or multiple power-law tails (PLT) in the high-density range. The correct PLT extraction is of key significance for understanding morphological and dynamical structure of star-forming regions since the PDF properties can be directly linked to the role of different factors in the star formation process: gravity, turbulence, magnetic fields, etc. Many observations indicate that the PLT regime in the N - PDF corresponds to highly fragmented, filamentary regions in a star-forming cloud - thus, it is interesting to compare N-PDFs of small-scale structures extracted in those areas with the N -PDF of the whole cloud. We present analyses of the N -PDFs in Galactic regions of various star-forming activity obtained from Herschel data, by use of a novel method (Li 2022) for decomposion of a map into multiple components containing structures of different sizes.
MAGNETIC FIELD GROWTH IN GALACTIC DISCS OF VARIOUS THICKNESS
Authors: Mikhailov E. , Khasaeva T. , Frolova M.
Published: February 2025

A large number of galaxies have regular magnetic fields of several microgauss. Their evolution is described usnig the dynamo mechanism. It is based on helicity of the turbulent motions in the interstellar medium and differential rotation of the object. The process is described by mean field dynamo equation which is quite difficult to be solve both analytically and numerically. So different models taking into account geometrical shape of the object are used. One of the most popular approaches is connected with thin disc approximation which replaces the z-derivatives by algebraic expressions. However, as for discs with large half-thickness it does not give proper results. So we consider the thick disc model which can be useful for the objects with quite large half-thickness. Here we give the estimates of the magnetic field growth rate and check them numerically. It has been shown that for thick disc it is much more difficult to obtain the growing field. One of the most interesting questions (which has not been studied before) is connected with phase diagrams for the magnetic field. We have found a stable point and describe the typical phase trajectories leading to it
PHOTOMETRIC PERIODS OF M31 LBV AF AND IDENTIFIED VIA STRUCTURE EMINENCE FUNCTION METHOD
Authors: Georgiev Ts. , Valcheva A. , Nedialkov P.
Published: February 2025

We use B-band historical light curve of AF And in the time interval 1918-1990 to search for photometric periods applying Structure eminence function (SEF) method and its derivative the Periodograph function (PGF). Periods of 3.90 ± 0.10 yr and 4.55 ± 0.10 yrare found. SEF is the dependence of the structure amplitude on the structure time lengthand extracts and uses profiles of these structures. The positions of the SEF maxima mark eminent periods and quasi periods.
THE PATH OF MILUTIN MILANKOVIĆ'S BOOK MANUSCRIPT "MATHEMATICAL THEORY OF THERMAL PHENOMENA CAUSED BY SOLAR RADIATION"
Authors: Janc N.
Published: February 2025

While working on the correspondence of Milutin Milanković (Dalj, 1879 – Belgrade, 1958) at the Serbian Academy of Sciences and Arts (SASA) in Belgrade, I came across a letter sent by Milanković to the Royal Hungarian Academy of Sciences in Budapest. In it, Milanković thanks the Academy for allowing him to spend his years of internment during the First World War in its library and enabling him to engage in scientific work. In those years, the text of his book “Mathematical theory of thermal phenomena caused by solar radiation” was written, and as a sign of gratitude he sent them its original typescript, which he wrote at the time under the title “Mathematische Grundlagen der kosmischen Strahlungslehre”. The letter is dated April 2, 1941. Given that Belgrade was bombed just a few days later, on April 6, 1941, I was interested in whether the manuscript reached the Hungarian Academy. To my inquiry, they replied that they had received it and that it was in the archive.The path of the manuscript did not go as Milutin Milanković planned. After the First World War, it was desirable that the book be printed in French. Given that Milanković did not speak French well enough, the translation from German to French was entrusted to Ivan Djaja (Le Havre, 1884 – Belgrade, 1957) and Mihailo Petrović Alas (Belgrade, 1868 – Belgrade, 1943). Milanković duly copied his original manuscript in German and handed it over to Djaja and Petrović. After completing their translation, Milanković also copied the translation. Both manuscripts are in SASA. The book was published in Paris in 1920 under the title “Théorie mathématique des phénomènes thermiques produits par la radiation solaire”. The results published in this book have attracted the attention of many scientists. Wladimir Ko¨ppen and Alfred Wegener invited Milutin Milanković to collaborate in their book “The climates of the geological past”.On April 20, 2017, in the Library and Information Centre of the Hungarian Academy of Sciences a memorial plaque in memory of Milutin Milanković was unveiled.
INTRA-NIGHT VARIABILITY OF 1722+119
Authors: D. Jovanović M. , Damljanović G.
Published: February 2025

Blazars (subclass of active galactic nuclei) eject relativistic jets near the observer’s line of sight. Their flux is highly variable in the whole electromagnetic spectrum. Variability time-scales can be divided into three classes: intra-night variability, short-term variability, and long-term variability. The one subclass of blazars is BL Lac. These are blazars with rapid and large-amplitude flux variability. Source 1722+119 is BL Lacertae. The observations have been performed from July 2013 using telescopes located at the Astronomical station Vidojevica of Astronomical Observatory of Belgrade, Serbia. During more than ten years of flux monitoring of source 1722+119 amplitude brightness change by about 2 magnitudes in V and R bands. We monitored this source for about 3 hours per night on several nights to investigate the intra-night variability, and the results are presented here.
X-RAY HARDNESS RATIO AND MID-INFRARED PARAMETERS FOR AGNS
Authors: D. Lakićević M. , Kovačević-Dojčinović J. , Č. Popović L.
Published: February 2025

We use the resulting parameters of the two different model decompositions of mid-infrared (MIR) spectra of 1) active and star-forming galaxies and 2) active galactic nuclei (AGN). These resulting parameters are the AGN, polycyclic aromatic hydrocarbons – PAH, H II and stellar contribution components, silicate contribution, etc. It is found that some of these parameters correlate with X-ray hardness ratios (especially HR1). This reveals the insight in the X-ray energy bands that influence the MIR parameters and it can point to the AGN sources that are more obscured. These correlations indicate the high attenuation of soft X-ray radiation by the dust.
THE NEW 60-cm TELESCOPE OF THE SHUMEN UNIVERSITY ASTRONOMICAL CENTER
Authors: Marchev D. , Borisov B. , Ibryamov S. , Atanasova T. , Yordanova G. , Pavlova N. , Georgiev A.
Published: February 2025

We present the 60-cm Ritchey-Chretien telescope of the Shumen University Astronomical Center (Fig.1) and its equipment allowing remote-controlled observations. We found that the unit is appropriate for observations of different types of stars up to 17 mag with precision better than 0.02 mag for short exposures. The fainter stars would require exposures in the order of several minutes. We determine the transformation equations for transfer to standard Sloan g', r', i' photometric system and standard set of UBVRI filters with response curves close to those listed in Bessell (1990).We briefly describe the telescope assembly process and calibration procedures. The telescope will mainly be used for photometric observations of variable stars and finally, we present the first observational results gathered with the new instrument.
URBAN OBSERVATORY OF BELGRADE (UrbObsBel)
Authors: Pavlović R. , Cvetković Z. , Simić Z. , Damljanović G. , Samurović S. , Rovčanin B. , Lukić D. , Bjelajac D.
Published: February 2025

We present the 3-year project of the Urban Observatory of Belgrade, funded by the Science Fund of the Republic of Serbia, a new observing station within the Astronomical Observatory of Belgrade, Serbia. One of the main goals of the project is to measure and study one of the least understood forms of pollution on Earth, light pollution. We also plan to perform observations which will provide information on the distribution of energy consumption, which has a major impact on the environment and ecosystems. Our measure- ments will be made in Belgrade and also from the Vidojevica Astronomical Station near Prokuplje run by the Astronomical Observatory of Belgrade, one of the few remaining dark areas in Serbia. The results of the project are planned to be used by the Municipality of Zvezdara and the City of Belgrade because these measurements will provide elements for making decisions in the direction of creating a better environment that will improve the health of the population of Belgrade and its surroundings.
Interacciones entre la financiación de la educación y el proceso de acumulación de capital
Authors:   Universidad Carlos III de Madrid, Boldrin Michele
Published: February 2025

Este artículo analiza un modelo de generaciones solapadas donde el capital físico y el capital humano son factores de producción que se pueden acumular privándose del consumo actual de recursos. El capital humano es el producto de un sistema escolar que puede financiarse de forma privada, mediante impuestos o a través de una combinación de ambos métodos. En un equilibrio político con mayoría de voto, la financiación pública de la educación se presenta como un instrumento para evitar el "problema del polizón". Al aumentar la cualificación de los trabajadores del siguiente periodo, incrementa la tasa esperada de rendimiento sobre el capital; este efecto no se puede conseguir sólo a través de un sistema escolar privado. Las escuelas públicas se convierten en un instrumento de redistribución de la renta entre generaciones y por esta razón se pueden preferir a las escuelas privadas. El trabajo se centra en formas funcionales concretas que permiten una solución cerrada en el equilibrio dinámico, pero se pueden reproducir todos los resultados importantes para cualquier forma general de funciones de producción y de utilidad.
El análisis económico de las crisis financieras: una visión retrospectiva
Authors:   Universidad de Vigo, Castro Ana Esther
Published: February 2025

A lo largo de la historia, se ha podido observar en muchos países la existencia de situaciones de inestabilidad financiera, caracterizadas por las siguientes manifestaciones: aumento de los niveles de endeudamiento, aumento de actividades de carácter especulativo, reducciones de los márgenes de seguridad de las distintas operaciones financieras, volatilidad del precio de los activos, aumento de la incertidumbre, racionamiento del crédito, y quiebras de instituciones bancarias. La relevancia del fenómeno en sí mismo, y sus negativas repercusiones sobre la economía en general, propiciaron el interés de los economistas por su estudio, tanto en lo que respecta a su origen como a la forma de propagación y a sus posibles vías de solución. El objetivo de este artículo es analizar retrospectivamente las distintas alternativas que el análisis económico ha planteado para dar explicación a estos episodios y proceder a un estudio comparativo.
La capacidad normativa tributaria de los Territorios Históricos del País Vasco
Authors:   Diputación Foral de Gipuzkoa, Moreno Portela Francisco Javier
Published: February 2025

En virtud de lo previsto en la Disposición Adicional Primera de la Constitución y en el Estatuto de Autonomía y en la Ley del Concierto Económico, los Territorios Históricos del País Vasco están dotados de potestad normativa para establecer, mantener y regular el régimen tributario. El Concierto, que forma parte del bloque constitucional, reconoce la existencia de un sistema tributario propio que sustituye al del Estado, con las exclusiones, principios generales y normas de armonización que el mismo prevé. En el análisis de dichas normas armonizadoras se pone de manifiesto la necesidad de respetar un equilibrio entre dichas normas y el desarrollo de la autonomía normativa.
La fiscalidad autonómica
Authors:   Universidad de Oviedo, Monasterio Escudero Carlos
Published: February 2025

El surgimiento del Estado Autonómico ha creado la necesidad de construir un sistema de financiación descentralizado, que entre otros elementos incluye el uso de impuestos por los gobiernos autonómicos. En el desarrollo de su fiscalidad propia, las Comunidades forales han actuado sobre la normativa de los tributos concertados de normativa foral, merced a las amplias facultades impositivas que permite el Concierto Económico. Las acciones han ido en la dirección de reducir la carga fiscal de sus contribuyentes. Las Comunidades de régimen común, con muy escasa autonomía fiscal, han aplicado recargos sobre las tasas del juego (tributo cedido) y creado tributos propios de carácter medioambiental y sobre juego. Por la escasa capacidad recaudatoria de estos nuevos tributos, el incremento de presión fiscal resultante ha sido moderado.
Tendencias de la fiscalidad local en España
Authors:   Universidad de Oviedo, Suárez Pandiello Javier
Published: February 2025

Este artículo revisa la evolución durante los últimos años de los impuestos municipales, en particular, el Impuesto sobre Bienes Inmuebles y el Impuesto sobre Actividades Económicas. En concreto, resume para cada tributo sus principales características técnicas y presenta una serie de cuadros y gráficos, elaborados a partir de estadísticas oficiales, sobre la base de los cuales se comentan los principales rasgos que han conformado su utilización durante los primeros años de vigencia. Finalmente, se sugieren algunas vías de reforma (no una propuesta cerrada) que podrían mejorar su configuración técnica a efectos de eludir algunos de sus problemas de diseño.