bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Different Levofloxacin Doses on QTc Interval Prolongation in Multidrug-Resistant Tuberculosis Patients Treated with the 9-Month All-Oral Regimen
Authors: Soedarsono Soedarsono , Rampengan Vicky Reinold Christofel , Agustiyanto Catur , Cho Yong-Soon
Published: October 2024

Introduction: The World Health Organization (WHO) has recommended the 9-month all-oral regimen for multidrug-resistant tuberculosis (MDR-TB) treatment. This regimen is expected to increase the treatment success rate. Bedaquiline, levofloxacin, and clofazimine are QT-prolonging drugs included in the 9-month all-oral regimen. Bedaquiline and clofazimine are given at the same dose for all patients, while levofloxacine dose is given in 750 mg and 1,000 mg based on the body weight. This study analyzed the correlation between different levofloxacin doses and certain factors on QTc interval prolongation.
Methods: This observational retrospective study used the medical records of MDR-TB patients who underwent the 9-month all-oral regimen. Electrocardiography (ECG) for QTc interval measurement was recorded at the baseline before and 2 weeks after treatment. The measured variables included patient demographic data, body mass index (BMI), electrolyte levels, and comorbidities.
Results: Thirty MDR-TB patients were included in this study. Gender, diabetes mellitus (DM), and levofloxacin dose did not correlate with QTc interval prolongation at 2 weeks after drug administration (p-values of 0.558, 0.197, and 0.134, respectively). Age, potassium level, magnesium level, calcium level, and baseline QTc interval also did not correlate with QTc interval prolongation at 2 weeks after drug administration (p-values of 0.433, 0.479, 0.705, 0.746, and 0.333, respectively). Multivariate analysis showed that the risk factor associated with QTc interval prolongation at 2 weeks after drug administration was a BMI of 0.013.
Conclusion: Different levofloxacin doses did not correlate with QTc interval prolongation in MDR-TB patients treated with the 9-month all-oral regimen. The incidence of QTc interval prolongation was significantly associated with the lower BMI level.
Right Lung Agenesis Associated with Dextrocardia in Adulthood
Authors: Krisnanda Made Yogi , Sriandari Luh Putu Feby , Darmayanti Sheila Gerhana , Suwardana Gede Ngurah Rsi
Published: October 2024

Introduction: Pulmonary agenesis is a rare lung disease, occurring in approximately 1 out of every 100,000 births. Most cases of pulmonary agenesis result in death during the neonatal period. Although survival in cases of pulmonary agenesis is rare, it is possible to encounter lung agenesis in adults.
Case: A 26-year-old female patient presented with progressive dyspnea. On physical examination, retraction of the breathing muscles, reduced chest excursions, and decreased breath sounds on the right side were observed. A chest X-ray raised suspicion of pulmonary agenesis. A computed tomography (CT) scan showed hypoplasia of the right lung, accompanied by mediastinal shift, hyperinflation of the left lung, and retraction of the diaphragm and liver to the right. Spirometry showed moderate obstruction.
Conclusion:   Pulmonary agenesis in adult patients is extremely rare. Chest X-rays and CT scans are the main diagnostic modalities for pulmonary agenesis. There is no specific treatment for asymptomatic cases. Management focuses on conservative and symptomatic care.
A Rare Case of Pulmonary Tuberculosis Masquerading as Laryngeal Tuberculosis or Malignant Manifestation
Authors: Madolangan Jamaluddin , Fiqran Muhammad , Affan Muhammad , Herman Bumi
Published: October 2024

Introduction: Laryngeal tuberculosis (LTB) is usually accompanied by pulmonary tuberculosis (TB) involvement. Misdiagnosis often occurs because the symptoms are non-specific and resemble laryngeal malignancy. We reported a rare condition of pulmonary TB masquerading as larynx abnormalities such as malignant manifestations.
Case: A 59-year-old man presented with a main complaint of prolonged hoarseness without clinical respiratory complaints. The patient additionally reported coughing as a symptom while receiving medical treatment in the hospital. A computed tomography (CT) scan of the neck without contrast revealed a glottic tumor invading the vocal cord – T3N2cMx. Laryngoscopy examination revealed T1-T1 tonsils. The pharyngeal mucosa was slightly hyperemic. The arytenoids and epiglottis were less hyperemic. There was no edema, the left vocal fold was paralyzed, could not be adducted, and there was a lump. The glottis rima gap was narrow, size 3–4 mm, and the mass could not be evaluated. Chest X-ray examination was normal, but rapid molecular tests of TB detected very low Mycobacterium tuberculosis (MTB) levels. The patient was treated with anti-TB treatment (ATT) according to body weight. An evaluation was performed after 2 weeks, and the patient's clinical and physical condition improved.
Conclusion: Pulmonary TB patients in endemic countries can have clinical manifestations such as LTB or laryngeal malignancy in 1% of cases. The prognosis for LTB with pulmonary T involvement is quite good with ATT administration.
ADAPTATION TRAINING FOR MENTAL RESILIENCE OF ADOLESCENTS USING THE ROY ADAPTATION MODEL APPROACH
Authors: Arif Budiman M. Elyas , Yuhbaba Zidni Nuris , Erdah Suswati Wahyi Sholehah , Basri Achmad Ali
Published: October 2024

Introduction: Adolescence is a key period for mental health, as over half of mental health problems begin during this stage and often persist into adulthood. Many adolescents, however, lack access to specialized care. This research aims to examine the impact of adaptation training on mental health resilience in adolescents, utilizing the Roy Adaptation Model.
Method: This quasi-experimental study followed a pre-test-post-test control group design. The sample consisted of 100 adolescents, divided into an experimental group (50 respondents) and a control group (50 respondents), selected using purposive sampling. The experimental group participated in six weeks of adaptation training, with one session held each week. The training aimed to help adolescents better adapt to stressors, fostering mental resilience. The Adolescent Resilience Questionnaire (ARQ) was used to measure resilience, specifically evaluating the capacity to achieve positive outcomes despite facing challenges. The Wilcoxon Paired test was applied to assess differences within each group before and after the intervention, and the Mann-Whitney test was used to compare outcomes between the two groups. Both tests utilized an ordinal scale for analysis.
Results: The Mann-Whitney test results showed a significant difference between the experimental and control groups, with a p-value of 0.000. This indicates that adaptation training had a positive effect on increasing adolescent mental resilience.
Conclusion: Adaptation training is effective in improving adolescents' mental resilience. It has the potential to be integrated into school programs to support mental health promotion and prevention, offering a proactive approach to addressing adolescent mental health challenges.
DETERMINING THE RELATIONSHIP BETWEEN SOCIAL MEDIA APPEARANCE CONSCIOUSNESS AND SELF-ESTEEM IN ADOLESCENTS
Authors: Oluc Tugba , Ayran Gulsun
Published: October 2024

Introduction: Adolescents' active use of social media raises curiosity about how they appear on social media platforms. This situation may cause changes in their personality. This study was conducted to determine the relationship between social media appearance consciousness and self-esteem in adolescents.
Method: This cross-sectional study was conducted between January and March 2023. The study involved 1103 students from three different high schools located in a province in eastern Turkey. As part of the study process, data were collected using the "Questionnaire", "Appearance-Related Social Media Consciousness Scale" and "Rosenberg Self-Esteem Scale". To analyze the data, percentages, averages, independent sample t-tests, one-way ANOVA, Pearson correlation, and regression analysis were performed. The significance level in all tests was set at 0.05. Shao's method was employed to assess the conformity of the data to normal distribution. As a result, the Skewness value was 0.409, the Kurtosis value was -0.370, and it was determined that the data showed a normal distribution between -3 and +3.
Results: The mean age of the students in the study was 26.8% 15 years old, 62.2% were male, and 27% were 9th-grade students. The mean total score of the students was 41.11±17.74 for the Appearance-Related Social Media Consciousness Scale and 29.36±6.35 for the Rosenberg Self-Esteem Scale. It was determined that there was a positive correlation between the scores of the Appearance-Related Social Media Consciousness Scale and the Rosenberg Self-Esteem Scale (p<0.05).
Conclusions: In conclusion, it was observed that increasing social media appearance consciousness scores was associated with higher self-esteem levels.
FAMILY FUNCTION AND SELF-HARM BEHAVIOR IN EARLY ADOLESCENTS: A CROSS-SECTIONAL STUDY
Authors: Endah Luthfiana Sari  , Yeni Fitria  , Enggal Hadi Kurniyawan  , Erti Ikhtiarini Dewi  , Fitrio Deviantony
Published: October 2024

Introduction: Self-harm behavior is a form of maladaptive coping mechanism that is very harmful because it can cause injury and even threaten the individual's life. Several factors cause self-harm behavior in early adolescence, one of the factors is family dysfunction. This study aimed to determine the relationship between family functioning and self-harm behavior in early adolescents at the Agricultural Area of Jember.
Method: This study used a correlational design with a cross-sectional approach. The research sample was obtained through a proportional stratified random technique with a total of 376 respondents. The independent variable in this study is family function and the dependent variable is self-harm behavior in early adolescents. Data was collected using the Family APGAR and Deliberate Self-harm Inventory (DSHI) questionnaires.
Results: The result showed that family function is in the high category, 224 respondents (59,6%), and self-harm behavior is low self-harm, 319 respondents (84,8%). There is a relationship between family function and self-harm behavior in early adolescents in the agricultural area of Jember (p = 0,001 and r = -0,131) very weak and negative correlation. Poor communication between family members can lead to inner conflict and negative emotions that put individuals at risk of self-harm. The data was analyzed by Kendall's Tau C correlation test.
Conclusions: Early adolescents with low family functioning are more at risk of self-harm. This study can be used as a guideline for schools, psychiatric nurses and community nurses to develop appropriate nursing interventions for early adolescents who engage in self-harm behavior.
THE RELATIONSHIP OF FEAR OF MISSING OUT (FoMO) AND PEER SOCIAL SUPPORT WITH THE BODY IMAGE OF FEMALE ADOLESCENT AT SENIOR HIGH SCHOOL
Authors: Marfita Mayra Putri , Fitryasari Rizki , Ni'mah Lailatun
Published: October 2024

Introduction: Adolescent girls are involved and exposed to various comments regarding physical appearance, which can lead to experiences of body dissatisfaction, resulting from failing to meet the unrealistic standards of physical attractiveness set by society. This condition can be influenced by FoMO and social support from peers. This research aims to analyze the relationship between Fear of Missing Out (FoMO) and social support from peers with body image in adolescent girls at SMA Negeri 13 Surabaya. Method: This research use descriptive correlation design with cross-sectional approach. The population was 650 people, with a sample size of 191 female teenagers at senior high school in Surabaya. The sampling technique used is simple random sampling. The independent variables are FoMO and peer social support. The dependent variable is body image. Data was taken using a questionnaire and analyzed using the Spearman's rank test. Results: There is a relationship between FoMO and body image in female adolescents (p=0,031<0.05 and (r) = -0,156). For the peer social support variable, the value obtained was p=0,568>0,05, which means there is no relationship. Discussion: FoMO may be related to body image. Peer social support is not associated with body
Trade Liberalization and the Performance of the Manufacturing Subsector in Nigeria
Authors: Onuosa Collins , Eta Uyu , Ikue Nenubari John , Ikemenjima Ibimna , Njoku Bethel
Published: October 2024

Trade liberalization is a widely accepted policy for fostering economic growth, particularly in developing countries. Advocates argue that open economies, through increased competition, specialization, and access to global markets, outperform closed economies. However, the short-term effects on developing economies like Nigeria remain debated, especially within the manufacturing sector. Nigeria's trade policy has fluctuated between protectionism and openness, significantly influencing its manufacturing performance. Critics, drawing from dependency theory, argue that liberalization exposes weaker economies to exploitation by stronger nations, leading to trade imbalances and inhibiting industrial growth. This study investigates the nonlinear effects of trade liberalization on Nigeria’s manufacturing sector, addressing a gap in the literature by employing a quadratic approach to determine threshold effects. By incorporating a quadratic form of the trade variable, the study tests the hypothesis that trade liberalization initially boosts the manufacturing sector but results in diminishing returns as openness intensifies. The research is framed within the Laffer Curve of Trade, suggesting that beyond a certain threshold, excessive openness may harm the manufacturing sector. The AutoRegressive Distributed Lag (ARDL) model is used to assess both short-run and long-run effects, with findings indicating a convex relationship between trade liberalization and manufacturing output, highlighting the critical importance of identifying optimal policy thresholds to maximize industrial growth.
THE MODELLING OF CARGO TRANSSHIPMENT OPERATIONS USING THE BUSINESS PROCESS MODELLING TOOLS
Authors: POPA Catalin , GOIA Ionela
Published: October 2024

This paperwork explores the transshipment operations at the Port of Constanta, Romania, focusing on the unloading of big bags from barges. Utilizing Business Process Management (BPM) software, the study models the transshipment process to identify optimization opportunities. The investigation reveals challenges such as coordination complexities and potential cargo damage, alongside the benefits of cost-efficiency and flexibility offered by transshipment services. Through literature review and analysis, the study emphasizes the importance of efficient business processes and the role of BPM software in enhancing operational efficiency. By employing Aura Portal Modeller for simulation, the study identifies bottlenecks and proposes optimization strategies for the transshipment process. The proposed measures include real-time cargo assessment, inventory tracking systems, equipment analysis, and storage layout optimization. This research contributes to the understanding of transshipment operations and highlights the effectiveness of BPM software in process visualization and analysis, offering insights for enhancing efficiency and mitigating delays in supply chain management.
DISSIMILAR HARDOX AND LOW-ALLOY STEEL IN EXCAVATOR STRUCTURES
Authors: SZCZUCKA-LASOTA Bożena , WĘGRZYN Tomasz
Published: October 2024

In the structure of excavators and other transport vehicles, it is observed that there is an increasing necessity to weld elements from the Hardox steels. The paper verifies the possibility to obtain accurate DMW (dissimilar metal welds from totally different grades of Hardox 450 steel with S355J2 steel). The microstructure and mechanical tests of the obtained various welds were analysed. Argon-based shielding gases with micro nitrogen additions were used for MAG welding. Gas mixtures with micro nitrogen additions of up to even 2000 ppm and their use in welding are an absolute novelty. The purpose of the manuscript was to find the correct parameters of making dissimilar joints with such modern mixtures and to determine the most suitable mixture for welding Hardox steel and low-alloy steel for use in the automotive industry.
ANALYSIS OF THE CONSTRUCTION OF THE CAR TRAILER FRAME IN TERMS OF CHANGING THE ASSEMBLY TECHNOLOGY
Authors: CABAN Jacek , NIEOCZYM Aleksander , MATIJOŠIUS Jonas , KILIKEVIČIUS Artūras , DROZD Kazimierz
Published: October 2024

Car trailers are quite a popular means of transport and are offered in many versions, from single axle light trailers with a maximum permissible weight of 750 kg, through two- or more-axle specialized trailers. The issues of research car trailers focus on two directions: testing the driving properties and analysing the strength of the supporting frame system. Issues related to the construction of light trailers are often common to trailers used in agriculture or general transport. In this article, based on a mass-produced car trailer, an analysis was carried out regarding the choice in the technology of making the supporting structure consisting of a lower frame and an upper frame. The term upper frame should be understood as the structure on which the lifted load box rests. The costs of materials, assembly and technological possibilities of small-scale production were taken into account. In addition, strength analyses of the numerical models were carried out for critical areas of the frame during operation. After considering the unit costs for each of the analysed assembly technologies, it was shown that riveting would be the cheapest. However, the most suitable method of assembly is welding, as it allows the use of standard profiles.
MODERN TRENDS AND INNOVATIONS IN THE MODERNIZATION OF RAILWAY LINES BASED ON EXPERIENCE IN THE REPUBLIC OF BULGARIA
Authors: TODOROV Stoyo , PASKALEV Yonko
Published: October 2024

The modernization of the Bulgarian railways has been underway for over 20 years. Hundreds of kilometres have been rehabilitated with funds from the European Union. The aim is to join the main Trans-European network, according to Regulation No. 1315/2013 [1] of the EU. Given the complex mountainous relief, the specific engineering objects are now the design and construction of a large number of tunnels (in the SofiaPlovdiv section alone, over 16 tunnels are planned, the longest of which is 6 km long); the design and construction of railway bridges, some of which have unique dimensions; the rehabilitation of bridges; and the construction of drainage facilities, including drains, ditches, and culverts (some of the culverts have a unique length of about 80 m). The report analyses the main railway projects with a critical analysis of strengths and weaknesses, according to the EU cost-benefit analysis methodology. The analysis presented in this report is unique for Bulgarian railways, as it includes a large volume of projects in the field of designing and building railway infrastructure according to European and world rules, which have not been used in Bulgaria until now. This is only the first stage of scientific research, which involves collecting data, examining the data, and building a working hypothesis. After the completion of the construction (supposedly by around 2029), there will be measurements of the railway and a diagnosis of its condition. At this time, data will be collected again, and the credibility of the presented hypotheses will be verified. The conclusions will serve for the more adequate preparation of the technical assignments for future infrastructure projects in the field of railways.
Development of a Prediction Model for Potential Forest and Land Fires using Machine Learning Algorithms Based on Patrol Data
Authors: Santoso Angga Bayu , Sitanggang Imas Sukaesih , Hardhienata Medria Kusuma Dewi
Published: October 2024

Indonesia allocates 120 million hectares or 64% of its land area as forest areas. Indonesia's forests continue to experience deforestation; one of the causes is forest and land fires (karhutla). The government conducts forest and land fire prevention through integrated patrols with the Forest and Land Fire Prevention Patrol Information System (SIPP Karhutla) facility for patrol data management. However, the patrol data are still primarily used for data observation and simple spatial analysis in the spatial module. Patrol data has not been used for further forest and land fire prevention studies. Based on these problems, this research aims to build a prediction model of potential forest and land fires using SVM, Random Forest, and XGBoost algorithms and compare model performance to get the best model. The preprocessing stage uses the SMOTE-ENN method to handle data class imbalance, and the k-fold cross-validation stage and hyperparameter tuning use the random search method. The confusion matrix evaluation method to see the model performance in terms of accuracy is XGBoost (94.81%), Random Forest (90.23%), SVM-linear (79.58%), SVM-polynomial model (73.99%), SVM-rbf (74.26%), and SVM-sigmoid (35.04%). Therefore, the best prediction model is XGBoost (94.81%) with boosting technique. The results of this study have implications for helping early prevention of forest and land fires on the islands of Sumatra and Kalimantan.
Facing Newness and Smallness: A Multiple Case Study of Nonprofits Creating Schools
Authors: Henrekson Ebba , Andersson Fredrik
Published: October 2024

This paper utilizes the literature on liability of newness and smallness to examine new nonprofit school venture creation and explore what challenges new school ventures face. We ask the following research questions: What challenges and obstacles do new nonprofit school ventures face? How do new nonprofit school ventures manage to maneuver, mitigate, or overcome these challenges and obstacles? To answer these questions, we conducted a comparative case study of three nonprofit organizations operating schools in Sweden. Our material consisted of semi-structured interviews and archival documents. The article illuminates two salient challenges for new school ventures: the need for legitimacy from a diverse set of stakeholders and the marshalling of sufficient resources. To cope with these challenges, the organizations combined an outward conformist strategy with an inward resource replacement strategy. Moreover, even though all ventures experienced obstacles, the character and magnitude of these obstacles differed depending on their mode of emergence.
¿Será que la práctica realmente hace al maestro?
Authors: Templos Marín Brandon Yahir
Published: October 2024

La práctica constante mejora y estabiliza las representaciones de la memoria de trabajo en nuestro cerebro, lo cual se asemeja a un proceso donde la información se cristaliza y se vuelve más clara. Este descubrimiento es vital para entender cómo se crea y se conserva la memoria a corto plazo. La memoria de trabajo nos ayuda a llevar a cabo actividades diarias como leer, escribir, hablar y orientarnos, además de permitirnos imaginar situaciones futuras. Investigaciones recientes han mostrado que el buen funcionamiento de esta memoria depende de actividades continuas o en secuencia dentro del cerebro, lo cual es esencial para nuestra capacidad de recordar y usar información brevemente.
Conexiones inesperadas entre la diabetes y los trastornos neurológicos
Authors: Olivares Muñoz Kevin Iván
Published: October 2024

La diabetes mellitus es una enfermedad crónica que ocurre cuando el cuerpo no produce suficiente insulina o no la utiliza correctamente. Esto puede llevar a complicaciones graves, incluyendo posibles vínculos con trastornos psiquiátricos y neurológicos. Investigadores de la Universidad de Gannon en Estados Unidos han estudiado cómo la diabetes puede estar relacionada con enfermedades como la depresión, Parkinson y el Alzheimer, revelando conexiones importantes entre estas condiciones.
PHOTOVOICE ANALYSIS OF INDUSTRIAL PRACTICE EXPERIENCE: A COLLABORATIVE AUTOETHNOGRAPHY STUDY
Authors: Oktavia Venisa , Sumarni Sri , Isnantyo Fajar Danur
Published: October 2024

This study aims to examine the experience of implementing industrial practice with photovoice analysis through a collaborative autoethnography approach and reveal the factors that determine the success of industrial practice. This research is qualitative and uses a partial collaborative autoethnography approach. The source of research data is industrial practice activities. The sampling technique was carried out through purposive sampling. Data collection was carried out through critical autoethnography, observation, and Focus Group Discussion (FGD). The validity test technique used was FGD. Data analysis was carried out through content analysis. The results of this research include: first, the study of industrial practice learning experiences contained aspects of togetherness and cooperation (collaboration ability category); discussion (communication ability category); involvement, contribution, initiative, responsibility, and dedication (proactive category); implementation of knowledge, fast learning, self-development, obedience, and time management (adaptive category). Second, the factors determining the success of industrial practice include a supportive partner work environment, team solidarity, student competence, and student personality.
Creating entrepreneurship opportunities through mobile fish retail outlets in Telangana, India
Authors: Priyanka Mushkam  , Sharma Arpita , Soni Shubham
Published: October 2024

In recent decades, per capita consumption of aquatic foods has been significantly impacted by increased supplies, changing consumer preferences and technological advancements globally. To support the livelihood of the coastal communities, the Government of India has implemented schemes such as Mobile Fish Retail Outlet (MFRO) under the Blue Revolution (BR) and Pradhan Mantri Matsya Sampada Yojana (PMMSSY). MFRO is a mobile kiosk designed to deliver hygienic fresh fish and Ready to Eat (RTE) products to consumers, aimed at increasing fish consumption and providing employment to fishers. Telangana State where the highest number MFROs (150) have been sanctioned under BR scheme was chosen for a study to assess the profile of beneficiaries, operational details and constraints faced by them. Primary data were collected from 30 MFRO beneficiaries using an interview schedule. The profile of the beneficiaries revealed that 73% belong to backward caste and 87% have land holding between 0.01 to 0.02 acres. About 61% of the MFROs are run by both men and women. Results indicated a statistically significant increase in beneficiary’s income and quantity of fish sold after adoption of the MFROs. The study highlighted that MFROs have created entrepreneurship opportunities for both men and women. However, constraints like parking issues, poor battery backup and excess fuel consumption by vehicles were reported.
 
Keywords: Beneficiaries, Blue revolution, Fish consumption, Mobile Fish Retail Outlet, Telangana
Rethinking Landscapes in Transition through an Anthropocene Lens
Authors: Pauknerová Karolína
Published: October 2024

This article delves into the theoretical dimensions of landscapes in transition, provides a comprehensive literature review and outline summary, and contextualizes the theory within the contemporary Anthropocene framework. It is focused on synthesizing and interconnecting the theoretical approaches to landscape in transition in the articles in this special issue, the scope of which is extended by incorporating additional perspectives to supplement and enrich the understanding of the issue. Through an Anthropocene lens, the article conceptualizes landscapes as crucial intermediaries, vividly depicting the convergence of large-scale, global influences or planetary events and local occurrences. The conclusion advocates a pluralistic understanding that embraces differentiated perspectives and a more-than-human approach.
Navigating Nature’s Transitions: the Bohemian Forest and Its Temporalities in Early Tourist Literature
Authors: Kolářová Anna
Published: October 2024

The article analyses the temporalities attributed by tourism-related literature to transitions of the environment of the Bohemian Forest in the second half of the long 19th century, with a special focus on the gales and bark beetle outbreak that occurred in the 1860s and 1870s. The expansion of both individual and organised tourism in the region from the late 1870s aligned with its economic decline, which followed a period of rapid development associated with eliminating the damage caused by the outbreak, an occurrence that severely affected the health of the forest and the inhabitants of the Bohemian Forest region. The article suggests that tourism acted as a resilience strategy, enabling adaptation to socio-economic uncertainties engendered by living in a more-than-human world. In addition to nationalist motives, the perception of nature and its transitions played a key role in the establishment of tourism in the region, which was often characterised by its forests.
Landscape in Transition, Heritage in the Making: A Research Agenda for Understanding Lusatia’s Post-mining Landscape as a Practice of Past Presencing
Authors: Hagemann Jenny , Wellpott Hannah
Published: October 2024

The region of Lusatia in Germany is characterised by a permanent state of uncertainty – as a consequence of decades of resettlements due to lignite mining as well as structural changes resulting from the German reunification. This article discusses an inclusive concept of post-mining landscapes and the presencing of their pasts in regional discourses, given that lignite mining in Lusatia mainly took place in the settlement area of the autochthonous minority of the Sorbs/Wends. Since the end of lignite mining is planned for 2038, historicizing perspectives such as a World Heritage initiative are becoming increasingly important, leading to a new conceptualisation of the post-mining landscape primarily as a practice of past presencing itself, which functions as a coping mechanism for facing up to new uncertainties, thereby emerging as a new action arena for the negotiation of regional identity, belonging and power structures.
Application of innovative approaches to the infrastructure development in mountain territories using the example of educational facilities
Authors:   National Research Moscow State University of  Civil Engineering, Kisel Tatyana , Igitkhanyan Sergey ,   National Research Moscow State University of  Civil Engineering
Published: October 2024

The goal is to develop proposals for the sustainable development of mountain areas based on the use of innovative approaches to the development of social infrastructure taking into account the example of educational facilities. Methods.The set of methods was used to achieve the stated purpose of the study, namely: literature analysis – to identify the main problems of the sustainable development of mountain areas, including in the field of social infrastructure using the example of educational facilities; analogy – to develop the proposals for the development of educational organizations of higher and secondary education according to the principles of campus organization of space, methods of sociological research (including methods of data collecting and processing) – to determine the possibilities of involving small businesses in the processes of innovative construction of campuses of educational organizations in mountainous areas (construction using information modeling technologies). Results and discussion. The authors proposed some measures for the development of infrastructure in the mountainous areas using the example of educational facilities, combining management and technological innovations: – as a management innovation it is proposed to apply the principles of forming an innovative educational environment taking into account the example of campuses for educational institutions of higher, secondary vocational (and, possibly, general secondary education in some cases and with some restrictions) within the framework of the development of a network of educational institutions in the mountainous areas of our country both at newly constructed facilities and at existing ones; – as a technological innovation, the use of building information modeling was proposed within the framework of projects for the development of educational organizations, based on the campus principle, in the mountainous areas. Conclusions. The proposed measures are aimed at solving significant problems characteristic of the mountainous territories of our country, such as reducing the outflow of young people (including for education), providing conditions for the development of human capital, developing social infrastructure and creating preconditions for increasing the investment activity and business development, as well as innovative activity of enterprises in the region, including small organizations.
Rationale for a staged bolting support to accelerate roadway development in underground longwall coal mining
Authors:   Empress Catherine II Saint Petersburg Mining University, Kazanin Oleg , Aparin Aleksei ,   Empress Catherine II Saint Petersburg Mining University, Sidorenko Andrei ,   SUEK JSC
Published: October 2024

Introduction. This article substantiates the prospect of introducing the staged bolting support for roadways in Russian mines in order to increase the rate of preparatory operations. Purpose. Justification of a staged bolting support scheme in order to accelerate roadway development to insure timely preparation of new long wall panels. Methods. The development of a staged roadway support method for mining gently inclined flat-lying coal seams is presented. In the initial phase of bolting support, the reduced number of bolts are installed, which are necessary to support the roadway during its construction. In the subsequent stage, with a certain delay from the face of the roadway, but prior to the initiation of long wall advancement, the full complement of bolts is installed to ensure the stability of the roadway throughout its operational lifespan. Results of numerical studies. Numerical studies allowed to estimate the distribution of stresses in the plane of the formation and the zone of limit state formed in the ribs of the roadway, both at the first stage of support, outside the long wall affected zone, and after the end of the second stage in the long wall affected zone. Based on the results of these studies, the necessity of ribs support of the roadway at the first stage of support are shown. Results of industrial research. A comparative analysis of the work cycle employed at one of the Kuzbass mines with the work cycle utilizing staged bolting support demonstrates that the rate of roadway development can be accelerated by up to 25 % in comparison with the conventional support scheme. Discussion. 1. The proposed staged bolting support scheme is recommended for the development of gently inclined flat-lying coal seams, as it will facilitate intensive underground coal mining. 2. The finite element method can be employed to successfully estimate the limit state zones forming and developing in the ribs of a roadway at different stages of its lifespan. 3. A comparative analysis of work cycles applied at one of the Kuzbass mines and the proposed patented staged support scheme revealed that the implementation of staged bolting support can potentially enhance the rate of roadway development by 25 %. Conclusion. 1. The article outlines the importance of timely preparation of long wall panels in leading coal-mining countries and presents a rationale for the introduction of staged bolting support of roadways at coal mines in Russia. 2. The method of staged roadway support, as developed and described in the article, represents a promising approach for the preparation of long wall panels in the conditions typical of Kuzbass mines. 3. In order to provide further details on the parameters of staged bolting support a physical simulation of the roadway stability be conducted.
Geoecological monitoring during mining operations
Authors:   MIREA, Kulikova Elena , Balovtsev Sergey ,   National University of Science and Technology  MISIS, Skopintseva Olga ,   National University of Science and Technology  MISIS
Published: October 2024

In recent decades environmental quality assessment has become a fundamentally important task in the operation of mining enterprises. This assessment becomes an integral part of the strategy for determining maximum permissible loads for mining regions and is aimed at reducing geoecological risk in them. Technological processes of mining and processing plants generate emissions of various pollutants into the atmospheric air, lead to violation of adjacent territories. Monitoring, primarily of atmospheric air and soils, is necessary to ensure the ecological balance of such territories. Lebedinsky Mining and Processing Plant is one of the most significant sources of gas and dust emissions from massive explosions in quarries during ore extraction, which form a large dust and gas cloud, creating a risk of deterioration of the life of the population in the surrounding area. The article examines the main pollutants in soils and in the atmospheric air during mass explosions, and determines the areole of their distribution from the work site. The forecast of an increase in the concentrations of detected harmful substances for the next 50 years is given. A methodology for conducting geoecological monitoring during mining operations is proposed. The research results may be useful in assessing geoecological risks and developing measures to reduce them.
Chinese experience of mountain tourism management in the context of urbanization: case of Guizhou province
Authors:   Moscow City Pedagogical University, Savchenko Irina , Zolotarev Maksim ,   Moscow City Pedagogical University, Kremnyov Evgeny ,   Irkutsk  State University, Kuznetsova Olga ,   Irkutsk  State University
Published: October 2024

The study is based on analyzing urban discourse in the context of mountain tourism development in China using Guizhou Province as an example. The focus is on exploring the interaction between urban and mountain cultures, and the formation of strategies that promote the sustainable development of the tourism industry in mountainous areas. Methods. The authors used system approach and factor analysis, as well as trans-disciplinary-regionological approach to study regional aspects of mountain tourism. Analytical reports, mountain tourism development strategies and works of Chinese researchers served as the main sources for the analysis. Results. In October 2019, the Guizhou Provincial Government published a document proposing to turn Guizhou into a world-renowned sports and mountain tourism area, highlighting the region’s ambition to become a leader in this field. International conferences and seminars have confirmed the desire to utilize the natural environment to develop mountain tourism, which includes not only improving infrastructure but also preserving the province’s unique natural and cultural characteristics. Guizhou has significant potential due to its geographical location and cultural diversity, making it an ideal location for tourism development. Key strategies to effectively engage with the urban discourse include enhancing the environmental culture of the people, developing transportation accessibility and infrastructure, promoting the cultural heritage of local ethnic groups, and increasing the region’s role in tourism management. Conclusions. The study emphasizes the importance of integrating urbanist discourse in mountain tourism development, especially in multinational and geographically unique regions such as Guizhou. Four key strategies – ecological development, improving infrastructure, preserving cultural uniqueness, and strengthening regional management – provide a sustainable foundation for future growth of the tourism industry. This approach not only promotes economic development, but also preserves the unique natural and cultural resources that make Guizhou attractive to tourists. The results of this study can serve as a basis for developing similar strategies in other mountain regions of the world, thus stimulating global cooperation and knowledge sharing in mountain tourism.
Increasing the energy efficiency of an enterprise by installing hydroelectric power systems for electricity generationg in its water supply systems
Authors:   Kazakh  National Research Technical University named  after K.I. Satpayev, Aubakirova Nazira , Yelemessov Kassym ,   Kazakh  National Research Technical University named  after K.I. Satpayev, Baskanbayeva Dinara ,   Kazakh  National Research Technical University named  after K.I. Satpayev, Bortebayev Saiyn ,   Kazakh  National Research Technical University named  after K.I. Satpayev
Published: October 2024

The article presents the results of the research strategy for the development of mountainous territories of Kazakhstan. The study of the ossibilities of developing the energy system of mountainous territories is shown on the example of the city of Almaty (Kazakhstan). Materials and Methods. To study the energy efficiency indicators of enterprises in the manufacturing industry, Almaty Heavy Machinery Plant (AHMP) was selected as one of the largest machine-building enterprises in Almaty. Results. It is shown that in the conditions of supplying the water supply system with industrial water from mountain rivers, hydro turbines can be used. It was found that such hydro turbines can be placed in water supply pipelines of production shops. Discussion. An assessment was made that showed that the electricity generated by them can be used to power their own equipment, as well as to supply electricity to the general network. Conclusion. The obtained average efficiency of the hydro turbine of 39 % allows us to calculate the possible generation of electricity in real conditions up to 11 kW, while the declared capacity was 16 kW. Resume. If we consider the tasks of energy saving in production, we can confidently predict that the generation of electricity from the developed hydro turbine will reduce the total electricity consumed from the grid. Suggestions for practical applications and directions for future research. The mini-hydroelectric power station developed and presented in this work can be used in water supply systems of industrial enterprises located in mountainous regions. This system can contribute to increasing the energy efficiency of enterprises. In the future, it is planned to scale these mini-hydroelectric power stations and make smaller and larger units for use in larger and smaller enterprises.
Justification of cryogenic technology for clarification of saponite-containing recycling water of tailings dump processing plant № 1 of JSC Severalmaz
Authors:   Institute of Problems of Integrated Development of Mineral Resources named  after Academician N.V. Melnikov of the Russian  Federation Academy of Sciences, Dvoichenkova Galina , Minenko Vladimir ,   Institute of Problems of Integrated Development of Mineral Resources named  after Academician N.V. Melnikov of the Russian  Federation Academy of Sciences, Masanov Alexey ,   ALROSA, Timofeev Alexander ,   Institute of Problems of Integrated Development of Mineral Resources named  after Academician N.V. Melnikov of the Russian  Federation Academy of Sciences
Published: October 2024

Experience in the operation of the tailings pond of the processing plant No. 1 of Severalmaz JSC has established the impossibility of achieving the conditions for natural (gravitational) sedimentation of solid particles and the necessary effect of clarification of recycled saponite-containing water, the content of solid particles in which currently exceeds 300 g/l (at a rate of 10 g/l). IPKON RAS has developed and tested cryogenic methods for clarification of saponite-containing circulating water from the Plant No. 1 of Severalmaz JSC. The experimental substantiation of the technological effectiveness of cryogenic methods for clarification of saponite-containing circulating water was carried out in three stages: 1) laboratory experiments, the results of which substantiate the cryogenic method as the most effective for the sedimentation of saponite particles in samples of circulating water of a tailings pond; 2) pilot testing with assessment of the technological efficiency of the process of freezing saponite-containing circulating water using two variants of cryogenic technology in the conditions of an existing tailings pond; 3) semi-industrial testing with assessment of the technological efficiency of the process of thawing frozen saponite-containing circulating water and the stability of the saponite-containing sediment formed during their clarification of circulating water. The results of pilot industrial tests established the technological efficiency of two options for implementing cryogenic technology for clarification of saponite-containing recycled water using the method of freezing and subsequent thawing due to the established possibility of obtaining a layer of clarified water with a depth of 0.5 to 1 m with a solid content of less than 1 g/l: – with the use of thermal stabilizers due to the possibility of obtaining an ice mass with a thickness of up to 2.5 m and a volume of up to 213 m3 (37 % of the original volume); – using the layer by-layer freezing method due to the possibility of obtaining an ice mass with a thickness of up to 2 m. Based on the results obtained, cryogenic technology for clarification of saponite-containing recycled water using developed options for using methods of its sequential freezing and thawing is recommended for industrial testing for a preliminary assessment of technical and economic indicators in the natural conditions of the tailings pond No. 1 of Severalmaz JSC.
Analysis of the territorial structure of the economy of «Yenisei Siberia»
Authors:   Tuva Institute for Integrated Development of  Natural Resources of the Siberian Branch of the  Russian Academy of Sciences, Mongush Snezhana
Published: October 2024

The territorial structure of the economy is the basis on which the territorial organization of the economy is built, where the existing interrelations and interdependencies in a certain area are objectively reflected. Materials and methods. The methods of statistical analysis, as well as methods of data collection and processing were used in the work. The methodological basis for the study of territorial structure is the system approach. Results. The competitive advantages of the macro-region are its unique location on the territory of the country, while its weakness is the low level of development of transportation and communication links, which leads to an insufficient level of development of innovative developments. Discussion. Yenisei Siberia is an important part of the existing and projected transportation corridors linking Asia-Pacific countries with European countries. Conclusion. Thus, the territorial structure of the economy is a dynamically structured generalized system, for which it is necessary to search for adaptive approaches with spatial and temporal variability of interrelations optimizing the structural features of the economy depending on the inertia of the economy. Resume. The diversity of the complex of constituent parts of the territorial system, allows the system to be more stable and prone to socio-economic improvement. “Yenisei Siberia” consists of three subjects of the Federation, these are two national republics and one krai (krai – Krasnoyarsk and national republics – Tyva and Khakassia). Suggestions for practical applications and directions for future research. In connection with the turn to the East, the actualization of scientific research on the development of Yenisei Siberia may become a driver of interregional interactions, especially for regions with a low level of economic development. The results of the research may be useful in future development strategies and/or master plans of the territories of the Yenisei Siberia.