Application Of Modern Technology Research Articles

Research on the Cultivation Mode of Management Accounting Talents in Applied Undergraduate Colleges in the Age of Digital Intelligence — Taking Guangzhou Huashang College as an Example

The in-depth application of modern information technology in the accounting industry, such as big data and artificial intelligence, has brought profound changes to the accounting industry, and the enterprises have put forward new requirements for the professional competence of accounting talents, which also poses challenges to the cultivation of undergraduate accounting talents. The paper first analyzes the demand for the professional competence of accounting talents by enterprises in the era of digital intelligence, as well as the dilemmas faced by applied undergraduate colleges and universities in the cultivation of talents. Combined with the Framework of China’s Professional Competence in Management Accounting and the competency model of management accountants, Guangzhou Huashang College actively explores the path of talent cultivation, and puts forward the creative “Three Constructions and Four Combinations”. It provides an exploratory path for undergraduate colleges and universities to cultivate accounting talents in the era of digital intelligence from the aspects of target orientation, curriculum system, practical teaching, and faculty.

Enhancing Hydrogels with Quantum Dots

This manuscript explores the interdisciplinary integration of quantum dot–hydrogel composites and smart materials and their applications across a spectrum of fields, including biomedical engineering, environmental sensing, and energy harvesting. It covers the synthesis of novel materials like fluorescent hydrogel nanocomposites that display enhanced chemical stability, mechanical strength, and thermal resistance, highlighting their utility in environmental monitoring and catalysis. In the biomedical sector, innovations include hydrogel composites for targeted drug delivery and advanced therapies such as photothermal DNA hydrogels for tumor treatment. This review also discusses the application of these materials in imaging, diagnostics, and the development of smart sensors capable of detecting various biological and environmental changes. Its scope further extends to optoelectronics and the design of energy-efficient systems, underscoring the versatile functionalities of hydrogels in modern technological applications. Challenges remain in scaling up these technologies for commercial use and ensuring their long-term stability and safety, necessitating future research focused on sustainable, scalable solutions that can be integrated into existing systems.

The impact of cleaner production strategy on Sustainable supply chain performance

Abstract There is a paradigm shift occurring in organizations towards sustainable production through cleaner production strategies. This cleaner production concept has been proven to be cost-effective, result-oriented, environment-savvy and provides the organizations a cutting edge over their counterparts. However, there is a lack of awareness about cleaner production practices in Iraq while the current study analyzed one of the most important factories in Iraq for sugar production to understand the factors required for successful application of cleaner production strategy and the challenges to be expected. In this study, the researchers followed an exploratory research approach. For this study, a questionnaire was designed, validated and distributed randomly among 700 potential respondents working in various departments of the organization under study. Out of the total responses, 482 responses were considered and SEM-PLS analysis was conducted. The cleaner production strategies were applied through nine dimensions and the relationship between the performance of the factory and sustainable supply chain was found to be prominent. With a few limitations such as the choice of a single factory, weak relationship between the variables identified from hypothesis testing, the study is a first-of-its-kind in this domain, especially in dealing with sugar refineries. Based on the outcomes, policy recommendations were made to the decision makers and the government. It can be concluded that the application of modern technologies and effective resource management can help in achieving the goal of the study.

Research on the Model of Public Physical Teaching in Universities in the Context of Modern Information Technology

With the advent of the information and network era, new opportunities have emerged for the development of educational and teaching work. In the context of public physical teaching in universities, the rational application of modern information technology based on actual development situations plays a significant role. It can enrich teaching methods, improve teaching efficiency, meet students' diverse learning experiences, and ensure the quality and efficiency of teaching. However, due to objective factors, there are still some problems in the actual application process, such as the limited ability of some teachers to use information technology and the lack of investment in teaching resources, which directly limit the advantages of information technology and even affect the final teaching effectiveness, leading to counterproductive effects. Therefore, in the future development, it is necessary to strengthen the information technology training for teachers, improve their application ability and information literacy, so that they can better integrate modern information technology with physical teaching. When conditions permit, increase the investment in information technology, improve infrastructure construction, and provide necessary hardware support for public physical teaching in universities.

Wide-incident-angle, polarization-independent broadband-absorption metastructure without external resistive elements by using a trapezoidal structure

The absorption of electromagnetic waves in a broadband frequency range with polarization insensitivity and incidence-angle independence is greatly needed in modern technology applications. Many structures based on metamaterials have been suggested for addressing these requirements; these structures were complex multilayer structures or used special materials or external electric components, such as resistive ones. In this paper, we present a metasurface structure that was fabricated simply by employing the standard printed-circuit-board technique but provides a high absorption above 90% in a broadband frequency range from 12.35 to 14.65 GHz. The metasurface consisted of structural unit cells of 4 symmetric substructures assembled with a metallic bar pattern, which induced broadband absorption by using a planar resistive interaction in the pattern without a real resistive component. The analysis, simulation, and measurement results showed that the metasurface was also polarization insensitive and still maintained an absorption above 90% at incident angles up to 45°. The suggested metasurface plays a role in the fundamental design and can also be used to design absorbers at different frequency ranges. Furthermore, further enhancement of the absorption performance is achieved by improved design and fabrication.

Application of Modern Technology in Minimal Invasive Dentistry - A Narrative Review

Preserving human anatomy and physiology is the ultimate goal of all health-related endeavours.The conservation of healthy tooth structure is the goal of minimal-intervention dentistry. The concept of "minimum/minimal intervention dental care" first appeared in the early 1980s. From its origins in general medicine, the minimum intervention philosophy in dentistry was created, focusing patient-oriented oral and dental care to prevent and treat oral disorders and maintaining over all oral health. A more conservative approach to tooth preparation and restoration in operative dentistry is called minimally invasive restorative dentistry. This terminology is relatively new. It comprises prompt identification prior to the onset of cavitation, sealing fissures and pits in uninfected areas, fluoride administration, minimum surgical repair of carious lesions, caries risk evaluation, and patient education regarding self-care. A wide range of methods are used, from initial identification of any demineralized tooth structure to evaluation and therapy, including air abrasion, laser cavity preparation, chemo-mechanical caries removal, and hand instrumentation. Adopting the current advanced method requires sufficient knowledge. The trio that comprises tissue histology, dental biomaterials science and professional patient care and management of materials are considered by the "golden triangle" of minimally invasive treatment options for dental caries in order to enable the successful application of minimally invasive dentistry in all patients. The term "minimal intervention dentistry" (MID) was first used in the early 2000s in a policy statement. Maintaining the greatest amount of healthy tooth structure and keeping teeth functional for life are the goals of MID. This approach is endorsed by the World Dental Federation (FDI) as the modern approach to dental caries management

Protection of drilling equipment against vibrations during drilling

The article is devoted to the study of important problem of influence of vibrations on drilling and drilling equipment. Vibration can adversely affect the condition of equipment, reducing its durability and productivity, as well as creating the risk of breakdowns and accidents for workers. Various vibration protection methods and technologies are considered, such as use of shock absorbers, vibration dampers, active control and intelligent control systems. The main attention is paid to methods of measurement and analysis of vibration spectrum, which allow to understand the nature of vibrations and to determine their main parameters. This helps to establish criteria for evaluating the level of vibration for drilling equipment and to make necessary protection decisions. Application of modern technologies and innovative approaches, such as the use of intelligent control and management systems, allows to achieve better results and reduce the impact of vibrations on drilling and drilling equipment. In general, the implementation of vibration protection systems in drilling is an important step in improving the quality and safety of work, saving equipment and reducing maintenance costs. The use of modern technologies and innovative approaches helps to achieve optimal drilling productivity and efficiency, which is a key success factor in well drilling.

Interview as a research method in teaching: a case study

Although the application of modern technologies in the education system of Serbia shows signs of progress in the last few years, it is still not at a satisfactory level. Hence the demands for improvement of learning methods and means are imposed. In order to determine to what extent each form of work is represented in the teaching of informatics and computer science, we conducted an interview with teachers of informatics and computer science in elementary schools in the territory of the cities of Belgrade and Novi Sad. The sample includes 19 teachers. The teachers answered 23 questions, which we divided into five groups. The research was conducted in two phases in May 2022 and June 2023. Contemporary conditions require a change in the content and methods of organizing the education process, and the transformation of the traditional school into a research unit ready to accept innovations.

ОСОБЛИВОСТІ ЗМІШАНОГО НАВЧАННЯ В УМОВАХ ВІЙНИ

The article deals with the issues of applying mixed learning techniques for the formation of the students’ professional competence at higher medical educational institutions under wartime conditions. It is found out the essence of the concept of “mixed learning”, its peculiarities, methods, advantages and disadvantages, which must be taken into account to train a future healthcare worker. The need of mastering mixed learning basic techniques for the correct organization of the educational process is emphasized. English communicative approach to medical students’ professional competence is an integral aspect of professionally oriented study at the higher medical educational institution. Military actions in the country require the application of new principles and practices of higher medical education transformation. Therefore, the issue of mixed education for students of medical institutions of higher education under wartime conditions is one of the most crucial problems in Ukraine. Attention is focused on the need to organize and establish a high-quality educational process in the conditions of war using distance model of education. The issues of semantic content for English for Specific Purposes, selection of training material, and development of communicative component in the process of students’ mastering English language skills in the process of distance learning in the conditions of war are under consideration. Both theoretical and methodological aspects of mixed learning for mastering English for Specific Purposes and the Latin language, which are studied through combining the organic application of modern distance learning technologies, are covered. The main distance learning technologies using the MS Teams and Moodle platforms are characterized. The use of information technologies of mixed learning under wartime conditions at professionally targeted classes of English and Latin has been found to develop speech skills and abilities that make possible to express an opinion, develop thinking, as well as to have high motivational characteristics, taking into account the realities of today.

Review of Research on the Development of Cold-Chain Logistics of Agricultural Products in China

The growth of cold-chain logistics of agricultural products in China has become a central issue from all walks of life. With the constant growth of the economy and the growth in the standard of living, it has become increasingly prominent as a key link to ensure food safety and enhance the added value of agricultural products. Although the acceleration of urbanization and the trend of consumption upgrading have facilitated the rapid growth of the market needs for cold-chain logistics of agricultural goods, the government has accordingly entered a series of support policies to stimulate the application of modern information technology in cold-chain logistics of farm products, compared to developed nations, a significant disparity exists in terms of infrastructure, technical level, and management system in China. Therefore, it has become urgent to enhance the cold-chain logistics of farm produce in China to strengthen infrastructure construction, enhance the degree of data technology utilization, and facilitate the application of new technologies and models. This paper conducts and analyzes the rising status of cold-chain logistics of agricultural goods nationally and internationally, conducts an in-depth analysis of existing problems by existing scholars, finds out the deep-seated reasons behind it, and points out the direction for the continuous improvement and innovative development of cold-chain logistics of agricultural products in China.

Design of Capacitive Power Transfer System with Small Coupling Capacitance for Wireless Power Transfer

Wireless power transfer systems play an important role in the application of modern power supply technology. Wireless charging has been widely used in portable devices such as smartphones, laptops, and even some medical devices. Higher system efficiency can be achieved while reducing costs. This article describes the design of a capacitive power transfer (CPT) system using the Class-E amplifier method. When the capacitance of the coupling plate is small, the operation of Class-E amplifiers under Zero-Voltage-Switching (ZVS) conditions is very sensitive to their circuit parameters. By adding an additional capacitor to the Class-E amplifier, the coupling capacitance can be increased, resulting in better circuit performance. The high efficiency of the Class-E amplifier is verified by simulation and experimental results.

Особенности применения инструментов цифровой коммуникации в пространстве социальных медиа (на материалах политических кампаний в Болгарии)

The purpose of this research work is to identify the factors that determine the constructive potential of promoting Bulgarian political parties in the digital environment. To achieve this goal, the article examines the practical experience of using social networks in political campaigns in Bulgaria. At the same time, it is noted that modern digital platforms and social networks are widely used in the country under consideration to communicate with voters in the processes of forming public opinion. To achieve the goal set in the work, the methods of content analysis and discourse analysis of the political segment of the Bulgarian digital space, as well as the Case Study method in the aspect of studying the specifics of the use of digital communication tools by political parties in Bulgaria in the social media space during election campaigns, were used as a methodological basis for the study. Through content analysis, the content parameters of information and communication interaction with the electorate of leading Bulgarian politicians were analyzed in terms of their influence on public opinion. The article examines the cases of information and communication interaction with the electorate of B. Borisov, K. Ninova, R. Radev and H. Ivanov. The paper shows that as a result of the successful application of modern digital technologies of socio-political communication with target electoral audiences, the Citizens for European Development of Bulgaria party demonstrated the ability to effectively interact with voters through the successful introduction of digital technologies during the election campaign, while the Bulgarian Socialist Party, The party "We continue the Changes" and the electoral bloc "Democratic Bulgaria" have demonstrated significantly less effective work with the electorate in the social media space. Based on the results of the work, the authors conclude that digital platforms and social networks are widely used in Bulgaria today for effective socio-political communication with voters and in shaping public opinion of the country's population.

Scientometric Study of Research on AI & ML Application in Defence Technology and Military Operations

Application of AI and machine learning in different domains of defence system in increasing rapidly to bring automation and to facilitate all the benefits of modern technologies in military. This article conducts a scientometric analysis on articles that are on application of Ai and Ml in military equipment, military intelligence, cyber security, decision making, military operations, defence medical systems etc. This study has executed a search query on Web of Science for identifying peer reviewed current resources that are contributing to the application of modern technologies in military systems. With extensive query and filtering this study has identified 417 articles with in the period of 1991 to 2023. With analysing all the data, it determines that a lot of varied research is there on the defence system that promotes use of modern technologies in development of weapon, conducting strategic military operation, prioritising military society etc. Prioritising legal and ethical parameters. This study has also highlighted legal, and security concerns surrounding using autonomous systems in military applications. The authorship pattern, document types, country production over time, and most cited countries have also been studied. Bradford’s scattering law was applied to identify the core journals, and Lotka’s law to check authors’ productivity patterns.

Адаптация и применение современных технологий в анализе инфляционных тенденций

В статье представлены анализ современных методик и инструментария, применяемых в прогнозировании инфляции, а также оценка их значимости для обеспечения экономической стабильности и стимулирования развития национальной экономики. В контексте Российской Федерации, где инфляционные процессы подвержены влиянию множества внутренних и внешних факторов, включая колебания цен на энергоносители, геополитические изменения и глобальные экономические тенденции, точное прогнозирование инфляции выступает как ключевой элемент стратегического экономического планирования и формирования политики. Изучена динамика инфляционных процессов за последнее десятилетие, выявлены основные тренды и зависимости. Среди современных методологий, нашедших свое применение в условиях российской экономики, особо выделяются модели ARIMA, GARCH и методы машинного обучения, такие как «случайный лес». Приведенные в статье сравнительные характеристики этих методов позволяют не только оценить их достоинства и ограничения, но и выявить наиболее эффективный подход к прогнозированию, который был использован для формирования прогноза до 2025 г. Учитывая текущую неопределенность в мировой экономике и сложность внутренней экономической ситуации, прогнозирование инфляции в России представляет собой комплексную задачу. The article presents an analysis of modern methods and tools used in forecasting inflation, as well as an assessment of their importance for ensuring economic stability and stimulating the development of the national economy. In the context of the Russian Federation, where inflationary processes are influenced by a variety of internal and external factors, including fluctuations in energy prices, geopolitical changes and global economic trends, accurate inflation forecasting acts as a key element of strategic economic planning and policy formation. The authors study the dynamics of inflationary processes over the past decade, identifying the main trends and dependencies. Among the modern methodologies that have found their application in the conditions of the Russian economy, ARIMA, GARCH models and machine learning methods such as «random forest» stand out in particular. The comparative characteristics of these methods given in the article make it possible not only to assess their advantages and limitations, but also to identify the most effective approach to forecasting, which was used to form a forecast until 2025. Given the current uncertainty in the global economy and the complexity of the domestic economic situation, forecasting inflation in Russia is a complex task.

VISUAL ATTENTION OF TRAM DRIVERS AS A STEP TOWARDS INCREASING SAFETY IN PUBLIC TRANSPORT: A COMPARATIVE EYE-TRACKING STUDY BETWEEN NOVICE AND EXPERT TRAM DRIVERS

This paper presents an eye-tracking study capturing the dynamics of ambient and focal attention of tram drivers as an application of modern technology in improving their training. Twenty-three experts and twenty-four novices were invited to take part in the eye-tracking study. We explored the visual attention dynamics of tram drivers while they were watching tram-driving simulation videos. The tram driver’s view: The windshields and control panel were defined as areas of interest (AOIs). In line with expectations, experts were more focused than novices and maintained their concentration for a longer time than novice tram drivers. This difference was significant for regions crucial for monitoring the driving environment (the windshields AOIs). Monitoring drivers’ visual attention gives new insights into the process of gaining expertise in scanning the driving environment.

INTERPLAY OF METABOLIC DYSREGULATIONS, OBESITY, PATHOLOGIES OF ABDOMINAL ORGANS, RESPIRATORY ORGANS, CARDIOVASCULAR SYSTEM, AND CHRONIC KIDNEY DISORDERS AS POTENTIAL RISK FACTORS FOR MALIGNANT NEOPLASMS IN THE CONTEXT OF PALLIATIVE MEDICAL PRACTICE

Metabolic changes, obesity, diseases of the abdominal cavity organs, respiratory organs, cardiovascular system, and chronic kidney diseases are risk factors for the development of malignant neoplasms. This poses new challenges in palliative practice: the use of integrated methods, the study of new biomarkers, and the application of modern technologies, the formation of professional readiness of medical personnel for activities in the field of palliative and hospice care. Objective. The study aims to conduct an epidemiological analysis of the prevalence and comorbidity of malignant neoplasms among patients in northern Bukovyna and to analyze the relationship between metabolic changes, obesity, diseases of the abdominal cavity organs and respiratory organs, cardiovascular system, and chronic kidney diseases as risk factors for the development of malignant neoplasms in the context of palliative medical practice. Material and methods. Clinical data of patients, data on metabolic status and obesity, information on the condition of abdominal cavity organs, respiratory organs, cardiovascular system, and kidneys, results of diagnostic tests, as well as applied statistical methods for assessing the relationships between different factors and the risk of malignant neoplasms were utilized.Results. The obtained results indicate a significant impact of metabolic changes, obesity, and diseases of various organs on the increased risk of malignant neoplasms in patients undergoing palliative care. The identified correlations underscore the necessity of an integrated approach to treatment, focused on managing metabolic status and systemic diseases. The discussion complements this by highlighting potential interaction mechanisms and pointing out opportunities for improving palliative care through emphasis on prevention and management of these risk factors.Conclusion. The research highlights the importance of understanding and managing metabolic, organic, and systemic risk factors, as they are interdependent in palliative practice, pointing to potential opportunities for improving treatment outcomes and the quality of life for patients with malignant diseases.

Physics mechanisms underlying the optimization of coherent heat transfer across width-modulated nanowaveguides with calculations and machine learning

Optimization of heat transfer at the nanoscale is necessary for efficient modern technology applications in nanoelectronics, energy conversion, and quantum technologies. In such applications, phonons dominate thermal transport and optimal performance requires minimum phonon conduction. Coherent phonon conduction is minimized by maximum disorder in the aperiodic modulation profile of width-modulated nanowaveguides, according to a physics rule. It is minimized for moderate disorder against physics intuition in composite nanostructures. Such counter behaviors call for a better understanding of the optimization of phonon transport in non-uniform nanostructures. We have explored mechanisms underlying the optimization of width-modulated nanowaveguides with calculations and machine learning, and we report on generic behavior. We show that the distribution of the thermal conductance among the aperiodic width-modulation configurations is controlled by the modulation degree irrespective of choices of constituent material, width-modulation-geometry, and composition constraints. The efficiency of Bayesian optimization is evaluated against increasing temperature and sample size. It is found that it decreases with increasing temperature due to thermal broadening of the thermal conductance distribution. It shows weak dependence on temperature in samples with high discreteness in the distribution spectrum. Our work provides new physics insight and indicates research pathways to optimize heat transfer in non-uniform nanostructures.

The Application of Wheat Farmers to Modern Agriculture Technology Related to Improve Crop Production in Thi-Qar

The research aim is to determine the level of application farmers of Modern Agricultural Technology have in improving wheat crop production in Thi-Qar Province. A multistage sample probability proportionates of size (P.P.S.) was used to conduct this study. The sample number was (75 farmers from the Qalat Sukkar district, 105 farmers from the AL-Rifai district, 45 farmers from the AL-Shatrah district, and 29 farmers from the ALNasr district) (15% of the total number of farmers) it was 254 farmers. Questionnaire techniques and interviews with the farmers were adopted to collect the data (March to May 2019). The study has revealed that the highest percentage (62.6 %) belonged to the medium category in applying modern agricultural technology to improve wheat crop production. The application level of modern agricultural technology was significant and positive at a 1% probability level under six variables. Multiple regression analyses have been studied with ten variables: social class, age, Education, Occupation, Farm power, Size of land holding, Family type, Family size, social participation, and Source of information utilized. This research has contributed nine independent variables with significant levels of variation to the extent of the application level of modern agricultural technology in improving wheat crop production (R2= 0.759). The importance of farmers using modern agricultural technology with the parts (Soil preparation, Planting and crop service, harvesting processes and marketing) was high according to (72.12, 70.72, and 68.41) respectively. The data were used for analysis: Frequency, percentage, mean, Standard deviation, and multiple regression analysis. According to the result, farmers' application of modern technology in improving wheat crop production was good. Modern agricultural technology will reduce costs, increase productivity, and save soil quality. The importance of farmers with the parts (Soil preparation, planting, crop service, harvesting processes, and marketing) was high according to (72.12, 70.72, and 68.41) respectively. Because of this, it is necessary to improve the cultivation of wheat crops to achieve high productivity and reduce the problems that happen during agricultural production. Keywords: Technology, Independent variables, Farmers, Harvesting, Size of land holding

The Application of Wheat Farmers to Modern Agriculture Technology Related to Improve Crop Production in Thi-Qar

The research aim is to determine the level of application farmers of Modern Agricultural Technology have in improving wheat crop production in Thi-Qar Province. A multistage sample probability proportionates of size (PPS) was used to conduct this study. The sample number was (75 farmers from the Qalat Sukkar district, 105 farmers from the AL-Rifai district, 45 farmers from the AL-Shatrah district, and 29 farmers from the AL-Nasr district) (15% of the total number of farmers) it was 254 farmers. Questionnaire techniques and interviews with the farmers were adopted to collect the data (March to May 2019). The study has revealed that the highest percentage (62.6 %) belonged to the medium category in applying modern agricultural technology to improve wheat crop production. The application level of modern agricultural technology was significant and positive at a 1% probability level under six variables. Multiple regression analyses have been studied with ten variables: social class, age, Education, Occupation, Farm power, Size of land holding, Family type, Family size, social participation, and source of information utilized. This research has contributed nine independent variables with significant levels of variation to the extent of the application level of modern agricultural technology in improving wheat crop production (R2= 0.759). The importance of farmers using modern agricultural technology with the parts (Soil preparation, Planting and crop service, harvesting processes and marketing) was high according to (72.12, 70.72, and 68.41) respectively. The data were used for analysis: Frequency, percentage, mean, Standard deviation, and multiple regression analysis. According to the result, farmers' application of modern technology in improving wheat crop production was good. Modern agricultural technology will reduce costs, increase productivity, and save soil quality. The importance of farmers with the parts (Soil preparation, Planting, crop service, harvesting processes, and marketing) was high according to (72.12, 70.72, and 68.41) respectively. Because of this, it is necessary to improve the cultivation of wheat crops to achieve high productivity and reduce the problems that happen during agricultural production. Keywords: Technology, Independent variables, Farmers, Harvesting, Size of land holding

Diagnostic and therapeutic cholangioscopy performed by various accesses to the bile ducts

Aim. To summarize data, define indications and estimate outcomes of cholangioscopy performed by various accesses to the bile ducts. Materials and methods. In the period of 2017–2024, 68 cholangioscopies were performed in 24 (35.3 %) men and 44 (64.7 %) women. The age of patients ranged from 18 to 85 years (mean age comprises 61 years). 10 (14.7 %) cholangioscopies were performed by retrograde access, 42 (61.8 %) by antegrade access, and 16 (23.5 %) were performed intraoperatively. Results. The total amount of interventions include 21 (30.9 %) lithoextractions, 16 (23.5 %) targeted biopsies, 12 (17.6 %) recanalizations of anastomosis strictures, and 1 (1.79 %) case involved a retrieval of the “lost” bile duct stent. In 7 (10.3 %) cases cholangioscopy failed due to a small diameter of the bile ducts. Conclusion. Contemporary minimally invasive endoscopic methods considerably enlarge the possibilities for treatment of complex lesions of the bile ducts. Antegrade cholangioscopy contributes to a wider application of modern technologies for direct examination of the bile ducts and to expansion of the range of therapeutic manipulations. The introduction of antegrade cholangioscopy avoids extensive traumatic reconstructive interventions with their potential risk of complications.