Local System Research Articles

DZ-SLAM: A SAM-based SLAM algorithm oriented to dynamic environments

Precise localization is a fundamental prerequisite for the effective operation of Simultaneous Localization and Mapping (SLAM) systems. Traditional visual SLAM is based on static environments and therefore performs poorly in dynamic environments. While numerous visual SLAM methods have been proposed to address dynamic environments, these approaches are typically based on certain prior knowledge. This paper introduces DZ-SLAM, a dynamic SLAM algorithm that does not require any prior knowledge, based on ORB-SLAM3, to handle unknown dynamic elements in the scene. This work first introduces the FastSAM to enable comprehensive image segmentation. It then proposes an adaptive threshold-based dense optical flow approach to identify dynamic elements within the environment. Finally, combining FastSAM with optical flow method and embedding it into the SLAM framework to eliminate dynamic objects and improve positioning accuracy in dynamic environments. The experiment shows that compared with the original ORB-SLAM3 algorithm, the algorithm proposed in this paper reduces the absolute trajectory error by up to 96%; Compared to the most advanced algorithms currently available, the absolute trajectory error of our algorithm can be reduced by up to 46%. In summary, the proposed dynamic object segmentation method without prior knowledge can significantly reduce the positioning error of SLAM algorithm in various dynamic environments.

Surface-derived groundwater contamination in Gulu District, Uganda: Chemical and microbial tracers

Groundwater is consumed by over 2 billion people globally, though it can be impacted by microbial and chemical contamination in both rural and (peri-)urban areas. This issue is particularly pertinent in regions like East Africa, where rapid urbanisation has strained local infrastructure, including water and sanitation systems. We use selected tracers of human and animal waste to assess the quality of community drinking sources with regards to surface-derived groundwater inputs and to compare urban versus rural water quality, under the rapidly developing urban area of Gulu, Northern Uganda. Specifically, we examine bulk and fluorescent dissolved organic matter (DOM), microorganisms (total coliforms, E.coli) and inorganic tracers of anthropogenic waste (NO3−, SO42−, Cl/Br) from various sources: boreholes (12–76 m depth; n = 90), protected springs (n = 11) and municipal taps (n = 4). Our results show that NO3− and SO42− were elevated in groundwater sources in the Gulu city urban area and the Cl/Br ratio was elevated in springs, compared to concentrations in the more rural Aswa and Omoro County area (p < 0.05). Interestingly, human and animal waste indicators E.coli and Tryp:FA (the ratio of tryptophan-like to fulvic-like fluorescence) displayed no significant difference between rural and urban settings (p > 0.05), though total coliforms were significantly higher in rural boreholes (p < 0.05). The presence of a pollution source, pollution carrier and a breakdown of a sanitary barrier at the borehole, as spot-checked by a visual sanitary risk assessment, was significantly associated with groundwater E.coli abundances. Evidence suggests monitoring and mitigation should be improved for all water types in Gulu District to meet WHO and Uganda Standard guidelines for potable water. This study offers valuable insights for water management planning and risk assessment of community water sources particularly in the context of East Africa and similar settings.

Rural community-centred co-planning for sustainable rural health systems.

Sustaining rural healthcare services is challenging because of numerous systemic factors. Rural communities can inform the design of sustainable rural health models; however, further evidence of effective co-design is needed to guide implementation. The study aim was to co-design a series of place-based and evidence-informed rural health models, to improve local health system sustainability. A rural region (categorised as Modified Monash Model 5) defined by three adjoining Shires in Central and Northwest Victoria, Australia. A health executive co-planning network led the co-design, with input and oversight from a broader cross-sector group. Healthcare professionals (n = 44) and consumers and carers (n = 21) participated in interviews, and an online survey was completed by healthcare professionals (n = 11) and consumers and carers (n = 7) to provide feedback on the preliminary results. Community-based participatory action research was applied incorporating co-design methods and systems thinking. Data were collected through qualitative interviews followed by an online feedback survey. Mixed method data analysis (QUAL-quant) was conducted with qualitative directed content analysis of interview transcripts and quantitative descriptive analyses of survey responses to aid prioritisation. Healthcare priorities, strengths and challenges, and proposed rural health models are described. A rural health system sustainability strategy was developed with three integrated pillars: 1. Workforce strengthening, 2. Integrated health services and 3. Innovative models of care. Community-centred co-design with rural health stakeholders was effective for generating locally tailored ideas and potential health models that emulate community strengths and resources, and provide a foundation for further planning, implementation and evaluation.

Thermosensitive multivesicular liposomal hydrogel: a potential platform for loco-regional drug delivery in the treatment of osteomyelitis caused by antibiotic-resistant biofilm-forming bacteria.

Biofilm-mediated osteomyelitis presents significant therapeutic challenges. Given the limitations of existing osteomyelitis treatment approaches, there is a distinct need to develop a localized drug delivery system that is biocompatible, biodegradable, and capable of controlled antibiotic release. Multivesicular liposomes (MVLs), characterized by their non-concentric vesicular structure, distinct composition, and enhanced stability, serve as the system for a robust sustained-release drug delivery platform. In this study, various hydrogel formulations composed of poloxamer 407 and other hydrogels, incorporating vancomycin hydrochloride (VAN HL)-loaded MVLs (VAN HL-MVLs), were prepared and evaluated. The optimized VAN HL-MVL sol-gel system, consisting of poloxamer 407 and hyaluronic acid, successfully maintained drug release for up to 3 weeks and exhibited shear-thinning behavior at 37°C. While complete drug release from MVLs alone took place in 312 h, the hydrogel formulation extended this release to 504 h. The released drug effectively inhibited the Staphylococcus aureus biofilms growth within 24 h and methicillin-resistant S. aureus biofilms within 72 h. It also eradicated preformed biofilms of S. aureus and methicillin-resistant S. aureus in 96 and 120 h, respectively. This injectable in situ gel system incorporating VAN HL-MVLs holds potential as an alternative to undergoing multiple surgeries for osteomyelitis treatment and warrants further studies.

Enzyme-responsive microgel with controlled drug release, lubrication and adhesion capability for osteoarthritis attenuation

The treatment of osteoarthritis (OA) remains challenging due to the narrow therapeutic window and rapid clearance of therapeutic agents, even with intra-articular administration, resulting in a low treatment index. Recent advancements in local drug delivery systems have yet to overcome the issues of uncontrolled burst release and short retention time, leading to suboptimal OA treatment outcome. Herein, we developed a methacrylate-crosslinking hyaluronic acid (HA) microgel (abbreviated as CXB-HA-CBP) that covalently conjugates the anti-inflammatory drug celecoxib (CXB) via a metalloproteinase-2 (MMP-2)-responsive peptide linker (GGPLGLAGGC) and a collagen II binding peptide (WYRGRLC). The GGPLGLAGGC linker is specifically cleaved by the overexpressed MMP-2 enzyme within the OA joint, enabling the sustained and on-demand release of CXB entity. The synergistic action of CXB and HA effectively inhibited macrophage activation and reduced the production of pro-inflammatory cytokines, protecting chondrocytes from damage. Furthermore, the collagen II peptide introduced on the microgel surface enabled a cartilage-binding function to form an artificial lubrication microgel layer on the cartilage surface to reduce cartilage wear. The CXB-HA-CBP microgel showed an extended retention time of up to 18 days in the affected joint, leading to an effective OA treatment in rats. This sophistically designed microgel, characterized by the prolonged retention time, sustained drug delivery, and enhanced lubrication, presents a promising biomedicine for OA treatment. Statement of SignificanceA new methacrylate-crosslinking hyaluronic acid (HA) microgel, covalently conjugated with the celecoxib (CXB)-GGPLGLAGGC and the collagen II binding peptide (CBP, peptide sequence: WYRGRLC), was developed. The overexpressed MMP-2 in OA joint cleaved the GGPLGLAGGC linker to trigger the CXB moiety release. Besides, the CBP on the surface of microgels enabled a cartilage-attaching ability, resulting in a prolonged retention time and an improved lubrication property in joint. This advanced drug-loading microgel remarkably reduced macrophage activation and pro-inflammation cytokine production, while protecting the chondrocytes via a dual action of CXB and HA. This study demonstrated that the enzyme-responsive drug-loading microgel could serve as an platform to efficiently attenuate osteoarthritis.

Lessons for Strengthening a Resilient Health System from the View of Health Facilities During the COVID-19 Pandemic: A Qualitative Study.

Coronavirus disease 2019 caused significant negative damage to the health status of populations and health systems globally. In Uganda, our previous study revealed that the strict Public Health and Social measures (PHSMs) and the closure of Entebbe Regional Referral Hospital (ERRH) led to missed healthcare access among the citizens in the Entebbe municipality. Limited studies, however, exist on the impact of the response measures on the local health systems. This study aims to explore the impacts of these measures on the local health service provision from the views of health facilities in Entebbe. We used a thematic framework method, grounded by the health systems resilience framework consisting of five components: (1) health service delivery; (2) medical products and technology; (3) health workforce; (4) public health functions; and (5) governance and financing. Key informant interviews with eight representatives from four private hospitals and four health centers were conducted from September to October 2022. Fifteen themes and 25 subthemes were identified. With the closure of the ERRH and the strict PHSMs, the citizens faced various difficulties in accessing the needed health services. The facilities received an overwhelming number of patients and faced various challenges, such as a lack of medicine, healthcare workers, facility capacity, and no means to transfer patients. Nevertheless, the facilities made efforts to maintain the required services. Moreover, mobilizing vertical and horizontal actors through a flexible network, from the district health office to community health volunteers, helped to coordinate the medicines, transportation for both patients and healthcare workers, conduct patient tracking, etc. Our study suggested the importance of an integrated system of public health and health service delivery systems, the formalization of a vertical cooperative mechanism, and the introduction of public health insurance for strengthening resilient health systems. These insights may benefit other sub-Saharan cities.

Medical Tourism for Cancer Treatment: Trends, Trajectories, and Perspectives From African Countries.

Cancer continues to be a significant public health concern. Sub-Saharan Africa (SSA) struggles with a lack of proper infrastructure and adequate cancer care workforce. This has led to some countries relying on referrals of cancer care to countries with higher income levels. In some instances, patients refer themselves. Some countries have made it their goal to attract patients from other countries, a term that has been referred to as medical tourism. In this article, we explore the current status of oncology-related medical tourism in SSA. This was a cross-sectional study. The study participants included oncologists, surgeons, and any other physicians who take care of patients with cancer. A predesigned questionnaire was distributed through African Organization for Research and Training in Cancer member mailing list and through study team personal contacts and social media. A total of 52 participants from 17 African countries with a 1.6:2 male to female ratio responded to the survey. Most (55.8%) of the respondents were from Eastern African countries. The majority (92%) of study participants reported that they knew patients who referred themselves abroad, whereas 75% referred patients abroad, and the most common (94%) referral destination was India. The most common (93%) reason for referral was perception of a higher quality of care in foreign health institutions. The findings suggest the need to improve local health care systems including building trust of the system among general population. The study highlights potential financial toxicity, and it adds to the current emphasis on return of investment on homegrown workforce and cancer treatment infrastructure.

DISCUSSING THE ISSUES OF BUILDING A SYSTEM OF TRAINING LOCAL CHINESE LANGUAGE TEACHERS IN KAZAKHSTAN

Under the framework of the Belt and Road Initiative, this study focuses on the construction and optimisation of the local Chinese language teacher education system in Kazakhstan. By examining in detail, the structure and function of the current system of Chinese language teacher training in Kazakhstan and the multiple challenges it faces, we use comparative pedagogical methods and refer to successful models of teacher education at home and abroad, with the aim of proposing a set of actionable strategic recommendations. These proposals aim not only to promote the professional growth and stability of local Chinese language teachers, but also to enhance the quality and effi-ciency of Chinese language teaching, thus promoting the popularisation and application of Chinese language in Kazakhstan. Srengthening international co-operation in the field of language education, especially exchanges with China, iscrucial for enhancing understanding and deepening the human-istic bond between the two peoples. Therefore, this study also aims to provide theoretical support and practical guidance for the construction of a shared linguistic and cultural platform connected two countries and promoted of the regional practice of the concept "community of human destiny", thus contributing to the pluralistic dialogue and harmonious coexistence among the countries along the "Belt and Road".

X-law operation for energy-efficient time-of-arrival positioning to achieve higher accuracy with lower bandwidth: A game-changer for UWB localization devices

Ultra-wideband (UWB) technology is a good candidate for low-latency high-resolution localization. This paper proposes the x-law operation (XLO) to boost the positioning accuracy of UWB localization systems. The proposed scheme significantly reduces the contribution of low-SNR samples and increases the time resolution of the pulse. Thus, the XLO achieves a time-of-arrival (ToA) positioning accuracy that existing methods require more energy and bandwidth to attain. The significant performance gain of the XLO for localization makes the XLO a good candidate for simultaneous positioning and communication with low complexity, high performance, and low power consumption suited for Internet of Things (IoT) devices.

Collecting Duct Pro(Renin) Receptor Contributes to Unilateral Ureteral Obstruction-Induced Kidney Injury via Activation of the Intrarenal RAS.

Although the concept of the intrarenal renin-angiotensin system (RAS) in renal disease is well-described in the literature, the precise pathogenic role and mechanism of this local system have not been directly assessed in the absence of confounding influence from the systemic RAS. The present study used novel mouse models of collecting duct (CD)-specific deletion of (pro)renin receptor (PRR) or renin together with pharmacological inhibition of soluble PRR production to unravel the precise contribution of the intrarenal RAS to renal injury induced by unilateral ureteral obstruction. We examined the impact of CD-specific deletion of PRR, CD-specific deletion of renin, and S1P (site-1 protease) inhibitor PF429242 treatment on renal fibrosis and inflammation and the indices of the intrarenal RAS in a mouse model of unilateral ureteral obstruction. After 3 days of unilateral ureteral obstruction, the indices of the intrarenal RAS including the renal medullary renin content, activity and mRNA expression, and Ang (angiotensin) II content in obstructed kidneys of floxed mice were all increased. That effect was reversed with CD-specific deletion of PRR, CD-specific deletion of renin, and PF429242 treatment, accompanied by consistent improvement in renal fibrosis and inflammation. On the other hand, renal cortical renin levels were unaffected by unilateral ureteral obstruction, irrespective of the genotype. Similar results were obtained via pharmacological inhibition of S1P, the key protease for the generation of soluble PRR. Our results reveal that PRR-dependent/soluble PRR-dependent activation of CD renin represents a key determinant of the intrarenal RAS and, thus, obstruction-induced renal inflammation and fibrosis.

Women's Knowledge of Local Plants and Their Gastronomic Heritage in Chitral, NW Pakistan.

Women are the "guardians of the kitchen" and central to household food security, yet their role has never been studied across the Hindukush region or Pamiri Knot. This study explores the women's knowledge (specifically from the Khowar (Kho) and Wakhi linguistic groups) of local food systems and determines their role in ensuring household food security and sustainability in the mountain regions of northern Pakistan. Based on in-depth semi-structured interviews with female informants in the Rech and Broghil valleys of upper Chitral, 91 different types of food products were recorded, including wild and cultivated species. Eremurus stenophyllus and Allium barsczewskii were the commonly utilized plant species, though distinct preferences between the Kho and Wakhi groups were noted. Prominent differences were perceived in using certain cultivated plants among the two ethnic groups. For instance, Kho preferred plants like Beta vulgaris, Zea mays, and Brassica napus as indicated by the use reports, while Wakhi concentrated on Thymus serpyllum, Zygophyllum obliquum and Papaver involucratum. Both groups had shared dairy practices, but cottage cheese and curd were highly cited among Kho, while double-fermented curd and Qurut for Wakhi. The study recorded some new food uses for specific plants, such as Atriplex hortensis, Carthamus tinctorius, Hylotelephium spp., and Saxifraga sibirica. Cross-culture analyses revealed a mosaic pattern of homogenous and heterogenous trends based on reported food species of plants/animals and their use reports. Our findings emphasize the significant role of women in sustaining local food diversity, food sustainability, and the preservation and security of the local food systems, cultural legacy, and household food management. Therefore, inclusive research addressing their social, economic, and environmental issues must be conducted. Furthermore, policies must incorporate women's traditional knowledge to build resilient food systems.

지방교육자치의 현안 진단과 향후 과제

This study aims to diagnosis the current issues of local educational autonomy and reveal its future tasks. For this, the author analyze broadly the precedent articles and a lot of policy documents which have been produced by Ministry of Education, and so on. The results of this study are as follows. Firstly the author summarizes that the current issues, which have been observed since Yoon Suk Yeol Government(Yoon Government), are the following three catergories; ⑴ reorganizing of educational governance and minimizing of local educational automomy, ⑵ the conflict of local educational finance system, ⑶ controversy over superintendent electoral system. Secondly it is found that the first future task is the emancipation of the ideology of political neutrality of education, which is necessary for epistemological maintenance. Thirdly the second future task is the democratization of education (administration) that produces effective solving method of controversy over superintendent electoral system. Fourthly the third future task is the conversionary approach for innovating local educational finance system, which needs the open minded holistic approach.

Post-growth agrifood systems: Towards an emancipatory politics

Abstract A world without hunger demands a post-growth rewiring of the global agrifood system predicated on emancipatory politics that enables reform of actors and institutions outside agriculture. This is necessary to shift out of the prevalent growth-hegemonic framing of agriculture and its contributions to economic growth, where the structural injustice of hunger is rendered invisible. Recent International Relations (IR) scholarship highlights the institutional arrangements underpinning global agrifood problems. This paper uses critical IR theory to understand the structural mechanisms and relations of power through which the growth-hegemonic theorisation of agriculture is produced and reproduced, sustaining hunger within an exceedingly financialised agro-industrial complex. The structural power of knowledge shaping the interlocking structures of finance, production, and security is evident in the extremely high multilevel concentration in modern agrifood systems. This structural power evident in local decentralised agroecological systems and in transnational agrarian movements reflects post-growth principles of sufficiency, shared prosperity, care, ecological and social justice.Together, they are the counter-hegemonic voices, cooperative social systems, and class interests championed by post-growth politics.

Demographic and food frequency survey of a marginalized community in Almora, Uttarakhand, India

The demography and eating behaviour of the marginalized communities residing in the Almora district of Uttarakhand, India, was investigated. It was observed that agriculture was the main income source along with other work such as labourer, black-smith, etc. Food consumption was mainly dependent upon either the Government Public Distribution System or on traditional coarse grains which were being produced only for their own consumption. Traditional food crops were being neglected in the Himalayan region due to the deterioration of local food systems, changing food habits, and lack of awareness of the uses and nutritional value of traditional crops.

A High-Precision Inverse Finite Element Method for Shape Sensing and Structural Health Monitoring

In the contemporary era, the further exploitation of deep-sea resources has led to a significant expansion of the role of ships in numerous domains, such as in oil and gas extraction. However, the harsh marine environments to which ships are frequently subjected can result in structural failures. In order to ensure the safety of the crew and the ship, and to reduce the costs associated with such failures, it is imperative to utilise a structural health monitoring (SHM) system to monitor the ship in real time. Displacement reconstruction is one of the main objectives of SHM, and the inverse finite element method (iFEM) is a powerful SHM method for the full-field displacement reconstruction of plate and shell structures. However, existing inverse shell elements applied to curved shell structures with irregular geometry or large curvature may result in element distortion. This paper proposes a high-precision iFEM for curved shell structures that does not alter the displacement mode of the element or increase the mesh and node quantities. In reality, it just modifies the methods of calculation. This method is based on the establishment of a local coordinate system on the Gaussian integration point and the subsequent alteration of the stiffness integration. The results of numerical examples demonstrate that the high-precision iFEM is capable of effectively reducing the displacement difference resulting from inverse finite element method reconstruction. Furthermore, it performs well in practical engineering applications.

Деятельность Н.И. Буланова на посту городского Головы Ставропольской городской Думы

In 1873, the City Duma was established in Stavropol (now Tolyatti) as the highest body of local government. It was in charge of various issues: the formation of the external appearance of the city, the organization of cultural events, the development of education and healthcare. The functioning of the local government system remains one of the main issues today. Having studied this problem, it can be noted that, based on the accumulated experience, there is a transformation of the relationship between the government and the heads of local government. The authors made an attempt to address the history of the Stavropol City Duma of the 19th century and analyze one of the key figures in the system of self-government – the city Mayor, who occupied a fairly high status due to the concentration of both legislative and executive power in his hands. The focus of the study is on the activities of the City Head of the Stavropol Duma, Nikolai Ivanovich Bulanov, who was born into a merchant family and was able to receive a higher education, which made him very different from his fellow officers. Nikolai Bulanov worked for more than 30 years in the Stavropol city government and during this time made a significant contribution to the development of city infrastructure. The source base is includes materials from the Tolyatti archive: journals of City Duma meetings on issues of city improvement, formal lists, ballot papers for city mayor election, reports of city councils.

Assessing the Relationship between Urban Heat Islands and Local Climate Zones during a Winter Period in the Coastal City of Balneário Camboriú/SC, Brazil

This research seeks to understand the link between urban heat island and urban cool island, which are the Local Climatic Zones (LCZ) and atmospheric systems during the winter season in the city of Balneário Camboriú, Southern Brazil. First, meteorological data on the urban environment was collected at 11 permanent points in the Balneário Camboriú metropolitan region. Next, a synoptic analysis of the dates was performed to understand the atmospheric systems operating in the region. Finally, the LCZs map created for the city in the World Urban Database and Access Portal Tools was used to correlate the magnitudes of the heat and cool islands found in Balneário Camboriú in the winter period. The results indicate that the increasing verticalization as a result of the construction of skyscrapers in Balneário Camboriú has a significant influence on local conditions for the occurrence of heat and cold islands. The findings indicate that LCZs with sparsely distributed buildings (LCZs 6, 8 and 9) and LCZs with dense vegetation (LCZ A) have lower intensity magnitudes of heat and cool conditions. The biggest magnitudes of heat and cool islands were reported in LCZs 1 and 3 during the timeframe. The synoptic analysis supports earlier research that points to atmospheric stability (Anticyclonic domain) as a favorable atmospheric setting for the emergence of urban heat and coolness islands.

Assessment of Pollution of the Waters in the South Kuril Fishing Zone of Russia by Radioactive Waters from the Fukushima-1 NPP Based on Lagrangian Modeling

The study investigates the potential hazard arising from the actions taken by the Japanese government regarding the discharge of technical radioactive water from the Fukushima-1 nuclear power plant storage facilities. The contamination of the South Kuril Fishing Zone (SKFZ), which is one of the most promising fishing areas for the Russian Federation, with radioactive particles, is considered. Based on the modeling of passive markers simulating radioactive contamination, the study analyzes the pathways and mechanisms of pollution transfer into the SKFZ. The research is conducted using altimetric data on geostrophic currents for the period from August 24, 2022, to August 24, 2023. The pollution transfer into the SKFZ is determined by a set of conditions related to the current development regime of the First Kuril Meander and the local vortex system with varying characteristics, both near the discharge site and at the SKFZ border. A seasonal dependence of the speed and quantity of polluted water infiltration toward the Russian Federation’s shores is established. The possibility of rapid pollution advection into the SKFZ within 13 days has been discovered. This speed is due to the entrainment of contamination by the Kuril Meander and its further transport by the mesoscale vortex system to the SKFZ border. The study reveals periodicity in the influx of pollution into the SKFZ. Graphs depicting the distribution of the quantity of “dirty” markers over their release times and the arrival of polluted water at the SKFZ border have been created.

MEASURING GLOBALIZATION: ANALYZING INTERNATIONALIZATION OF HIGHER EDUCATION (IOHE) THROUGH STEM EDUCATION IN PAKISTAN

The concepts of 'internationalization' and 'globalization' are closely intertwined, impacting both tangible and intangible aspects of higher education. Internationalization refers to the internal transformations that occur within an educational setting as a result of frequent cross-border interactions within a local governmental system. Currently, developing countries like Pakistan are adapting and shaping their higher education systems in response to the global knowledge economy but neglecting the introduction of STEM education in the areas of social sciences like mathematics, statistics, entrepreneurship, IT, and other courses that are considered the need of time may leads to lack social scientist’s ability to estimate &amp; forecasting and critically evaluate the situations as these deficiencies lead to reduce the cognitive skill of the workforce. This qualitative study employed Wallenstein’s World System analysis framework to examine student mobility and educational policy aspects in Pakistan critically. The findings suggest that the internationalization of higher education may lead to unequal exchange of educational services between core and peripheral countries in the global system.

Adaptive Bug Localization Framework for Precision-Driven Bug Localization in Software Engineering

Software development always looks for automated methods to improve productivity and accuracy in issue detection. The paper conducts a comparative examination of several machine-learning techniques to tackle the bug localization difficulty. Our study compared the performance of Logistic Regression (LR), Random Forest Classifier (RFC), Support Vector Machine (SVM), Gradient Boosting Classifier (GBC), and Adaptive Bug Localization System (ABLS) on five dataset versions. The results demonstrate the superior performance of ensemble learning methods. The ABLS model regularly beats other models regarding F1 score, accuracy, and recall, indicating its strong potential for precise problem localization. The study highlights the necessity of continuously adapting models to tackle idea drift in dynamic datasets. Our research suggests a path for future endeavours involving improving feature engineering and integrating real-time online learning to sustain high performance in bug localization activities.