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The importance of data mining in Indonesia is increasing along with the growth of big data in various strategic sectors. Data mining plays an important role in transforming complex data into useful information to support data-driven decision making, which is urgently needed in the face of competitive challenges and operational complexity. This research aims to examine the development of data mining techniques and applications in Indonesia over the last decade (2015-2024). Through a systematic literature review approach, data was collected from academic publications in SCOPUS indexed databases. From the initial 95 papers found, a further selection was made based on accessibility, title, and abstract until 64 papers were included in the article review. The results show that techniques such as K-Means, Naive Bayes, and Decision Tree are most commonly used. In the business sector, clustering through K-Means is widely applied for market segmentation and consumer pattern analysis. The healthcare sector mainly utilizes classification techniques, such as Naive Bayes and Decision Tree, for disease risk prediction and early diagnosis. Meanwhile, the education sector uses data mining to assess student performance and predict potential dropouts, assisting institutions in optimizing learning strategies.

Dysmenorrhea is pain during menstruation experienced by women of childbearing age. Risk factors that can cause dysmenorrhea include age of menarche, family history, duration and menstrual cycle, stress, physical activity, nutritional status, and nutrient intake. Some nutrients that are related to the incidence of dysmenorrhea include fat, calcium, and magnesium. This study aims to determine the relationship between fat, calcium, magnesium, and physical activity intake with the severity of dysmenorrhea in students of the Faculty of Sport and Health Sciences, Surabaya State University. This study used a cross-sectional approach. The sampling technique used stratified random sampling with a total of 119 samples. Data collection used the NRS (Numeric Rating Scale) questionnaire for the incidence of dysmenorrhea, SQ-FFQ (Semi Quantitative Food Frequency) for fat, calcium, and magnesium intake, and IPAQ-SF (International Physical Activity Questionnaire-Short Form) for physical activity. The results showed that students of the Faculty of Sport and Health Sciences, Surabaya State University had low fat intake (79%), low calcium intake (58%), normal magnesium intake (47,9%), heavy physical activity (47,1%) and mild dysmenorrhea pain (40,3%). Data analysis using the Spearman Rank test showed a value of p = 0.000 (fat), p = 0.023 (calcium), p = 0.023 (magnesium), and p = 0.039 (physical activity). Based on the results of the study, it can be concluded that there is a significant relationship between fat, calcium, magnesium, and physical activity intake with the severity of dysmenorrhea (p <0.05).

Crime represents unlawful acts contrary to societal norms. In 2021, Jayapura City experienced a high number of criminal cases, predominantly involving crimes against property and goods. This study maps the distribution of crime rates and identifies contributing factors in Jayapura City using the K-Means Clustering and Analytical Hierarchy Process (AHP) methods. K-Means Clustering analysis revealed five crime levels: high, relatively high, moderate, quite low, and low. North Jayapura District exhibited the highest crime rates among all districts, with Gurabesi Village similarly showing elevated criminal activity. The clustering results were subsequently mapped to visualize the spatial distribution patterns of crime. AHP analysis identified economic factors and low educational attainment as primary contributors to criminal behavior in Jayapura City. Among various intervention alternatives, job creation emerged as the most effective strategy, achieving the highest comparative value for simultaneously improving educational quality and security conditions. These findings provide crucial insights for law enforcement agencies and policymakers to develop targeted crime prevention strategies, focusing on economic development and educational improvement in high-risk areas, particularly North Jayapura District and Gurabesi Village.

Acute Respiratory Infection (ARI) is an infectious disease that often affects the upper and lower respiratory tract. This disease is one of the main causes of death in children under five, especially in areas with less favourable environmental conditions. This study aims to map the distribution of ARI in Central Java Province using the K-Means clustering method. Through data analysis that includes inputting, transforming, processing, and visualisation, this study successfully identified three clusters of areas with different levels of ARI distribution. Cluster 0 indicates areas with low risk, such as Demak and Semarang Regency, Cluster 1 indicates areas with medium risk, such as Klaten, Magelang Regency, Pati, while cluster 2 indicates areas with high risk, including Semarang City and Surakarta City. The results of this analysis are presented as a map using QGIS to spatially visualise the distribution of ARI across Central Java. Thus, local governments can design more effective and targeted ARI prevention and control strategies.

Rapid advances in information technology have fuelled the emergence of digital currencies such as Bitcoin as an increasingly popular means of transaction in Indonesia. However, behind the convenience and speed offered, the use of Bitcoin also poses a high risk of fraud in online transactions. The main objective of this research is to analyse the nature of legal protection for Bitcoin users in Indonesia. This research applies normative juridical method with statutory approach, conceptual approach, case study analysis, and refers to legal protection theory, online transaction theory, and legal economic theory. One of the case studies studied is the High Court Decision 1240/Pid.Sus/2022/PN Tng which reflects the existence of a vacuum and vagueness of legal norms in the protection of Bitcoin users. The analysis shows that although Bitcoin has been regulated under the legal framework of digital asset trading, there are still inefficiencies in the application of legal protection in a comprehensive and effective manner. This research emphasises the need for more progressive regulatory reforms, as well as strengthening the role of law enforcement agencies and financial technology supervisors to ensure fair, certain and comprehensive protection for Bitcoin users in the territory of Indonesia. It is hoped that the results of this research can strengthen theoretical contributions in enriching the development of digital economy law and become a practical reference for policy makers.

The crime of defamation in the digital era has become an increasingly complex phenomenon along with the rapid development of information technology. This study aims to analyze the problem of criminal defamation from the perspective of Hadith At-Tirmidzi Number 1894 and Article 27A of the ITE Law. The main focus of the study is on the dynamics of criminal defamation in the context of information and media ethics, the role of hoax news that contributes to the rampant criminal defamation cases, and legal analysis related to both sources. The method used in this study is a qualitative approach with normative analysis of Islamic legal doctrine and positive legal provisions. The results of the study show that Hadith At-Tirmidzi Number 1894 emphasizes the importance of honesty and prohibits lying as part of moral ethics in Islam. Meanwhile, Article 27A of the ITE Law acts as a legal instrument to address criminal defamation violations in the digital realm. A comparison of these two sources shows that although Islamic law and positive law have similarities in maintaining individual honor, the resolution mechanisms are different. Therefore, this study recommends preventive measures such as increasing digital literacy and legal education to reduce the risk of defamation and increase public awareness of the ethics of communicating in cyberspace

Information technology companies rely heavily on databases to store critical data that is vulnerable to leaks that can be financially and reputationally detrimental. This study aims to analyze the effectiveness of database security mechanisms, especially encryption and access control, in preventing data leaks. The method used is a case study with a qualitative approach through observation and interviews at information technology companies, as well as technical analysis of database protection implementation. The results of the study show that to maintain data security, companies need to use end-to-end encryption and a biometric login system so that only authorized people can access it. Smart technology such as AI is also important for detecting threats quickly. In addition, using special tools to monitor devices and routinely test security helps reduce risks. No less important, providing security training to employees so that they are more vigilant and do not become a gap for data leaks. In this way, companies can be better prepared to face various threats in today's digital era.  

Jorong Lubuk Sao, located in Nagari Dalko, Agam Regency, has great potential in the plantation, fisheries, and agriculture sectors. This study systematically examines the external factors influencing economic development in Jorong Lubuk Sao through an integrated PESTEL-SWOT analytical framework. Qualitative research methods were applied through observation and interviews with local economic actors. The findings reveal that six key external dimensions – political, economic, socio-cultural, technological, ecological, and regulatory aspects – substantially influence the village's economic progression. Furthermore, the SWOT examination pinpoints internal capabilities and limitations, along with external prospects and risks, which collectively shape the community-driven tourism development initiatives. This study recommends the need to enhance community awareness, improve promotion efforts, and secure government support to achieve sustainable economic development.

Criminalistics is an important supporting science in the criminal justice system, especially at the investigation stage. This science is used by investigators to uncover crimes scientifically through analysis of physical evidence, fingerprints, traces of wounds, poisons, objects used, and reconstruction of the incident. In cases of premeditated murder committed by children, criminalistics plays a crucial role in proving the elements of the crime. This study raises two problem formulations, namely: (1) What is the role of criminalistics in revealing the crime of premeditated murder by children? and (2) What are the inhibiting factors of criminalistics in the disclosure process? This study uses a normative and empirical legal approach, by combining primary data through interviews and secondary data from literature studies. The results of the study indicate that criminalistics is very important in helping investigators uncover facts and compile a scientific picture of criminal events. The factors that inhibit the role of criminalistics include: limited means and facilities for forensic investigation, legal aspects that limit the time of investigation, lack of coordination between law enforcement officers, and community and cultural factors. Among these factors, the most dominant are the lack of forensic facilities, limited investigation time, and weak coordination between institutions. This study suggests that investigators be provided with comprehensive criminalistic training and authorities increase the provision of forensic equipment, especially in regional areas, to support the effectiveness of disclosing crimes involving children as perpetrators.  

Chronic Energy Deficiency (CED) in pregnant women is a nutritional problem that has serious impacts on the health of both the mother and the fetus, such as increased risk of preterm birth, low birth weight, and labor complications. In Jambi City, CED cases have continued to rise year by year. This study aims to identify the determinants of CED among pregnant women in the working area of Putri Ayu Public Health Center, Jambi City. This study employed a quantitative approach with an analytical observational design using a cross-sectional method. The sample consisted of 82 pregnant women selected through purposive sampling. Data were collected using questionnaires and anthropometric measurements using MUAC. Data were analyzed using the Chi-Square test to examine the relationship between independent variables and the incidence of CED. The study found that the prevalence of Chronic Energy Deficiency (CED) among pregnant women was 28%. Statistical analysis revealed that infectious diseases (p=0.000), personal hygiene (p=0.009), environmental sanitation (p=0.037), education (p=0.004), occupation (p=0.000), and income (p=0.040) were significantly associated with CED in pregnant women. There is a significant relationship between infectious diseases, personal hygiene, environmental sanitation, education, occupation, and income with Chronic Energy Deficiency (CED) in pregnant women at Putri Ayu Public Health Center, Jambi City. It is expected that efforts to address chronic energy deficiency (CED) among pregnant women at Putri Ayu Public Health Center can be carried out through an integrated approach, including improvements in personal hygiene, environmental sanitation, prevention of infectious diseases, as well as enhancement of education, employment, and family income.

This study identifies and validates critical risk factors in storage tank construction projects through a Systematic Literature Review (SLR) and expert judgment using Aiken’s V method. Initially, 103 journal articles were screened, with 43 selected for in-depth analysis, revealing 33 causal factors and six key risk categories. A Focus Group Discussion (FGD) involving industry professionals (project managers, QA personnel, safety officers) enriched the findings by incorporating practical insights missing in academic literature. Eight experts then evaluated these factors using Aiken’s V, validating 13 causal factors and four risk factors as highly significant. Key causal factors included Structure Design, Material Delivery, and Foundation Design, while major risk factors were financial loss, non-compliance, workplace accidents, and poor-quality outcomes. The study establishes a structured risk model for storage tank projects, supporting future quantitative risk analysis and mitigation strategies.

The Russian invasion of Ukraine, which began in February 2022, has not only caused a humanitarian crisis but also triggered severe environmental consequences, particularly along the Ukrainian-Russian border. This study explores how military actions, occupation of sensitive ecological zones, and the targeting of industrial and critical infrastructure have led to widespread environmental degradation. Using a qualitative approach grounded in document analysis and legal frameworks, the research highlights how security actors have influenced the scale and nature of environmental damage. The findings reveal serious threats to soil quality, water safety, air purity, and biodiversity, as well as disruptions to waste management and energy systems. The paper also discusses the role of ecocide as a potential legal category for holding actors accountable for deliberate environmental harm. By situating the war within the broader context of environmental security and conflict ecology, the study argues for stronger international mechanisms to address ecological risks in armed conflict and post-war recovery.

This study aims to analyze the toxic effects brought about by amphetamine use and its association with suicides. Suicide is an act of ending one's own life that is often associated with mental health disorders and life pressures. Amphetamines are classified as Class II psychotropic drugs that have a strong stimulant effect on the central nervous system, causing changes in behavior and mental activity, including hallucinations, thought disorders, and emotional changes. This study was conducted based on a literature review, identifying and analyzing various suicide cases involving amphetamine use through relevant literature. The results of the literature analysis indicate that amphetamine use significantly increases the risk of suicidal behavior, which can affect neurotransmitters, potentially triggering psychosis, nerve damage, and cardiovascular issues. Chronic use leads to dependence, cognitive impairment.

Business planning and business development are crucial steps to maintain business continuity and progress in a highly competitive market environment. Business planning refers to the systematic formulation of strategies to achieve a company's long-term growth goals. This includes identifying opportunities and challenges in the market, designing strategies for marketing and sales, human resource development, and innovation and technology analysis, and environmental sustainability management. The purpose of this planning is to produce clear and organized guidelines so that the company can achieve its long-term vision and objectives. The methodology used in this study is qualitative descriptive which aims to describe the phenomena surrounding business planning and development. This planning process is also important for detecting risks, improving operational efficiency, and ensuring business continuity in the future. 

In the digital era, paying zakat has become more convenient through digital platforms such as BAZNAS, Gopay, and OVO. However, this convenience also comes with risks, such as the leakage of personal data, which can affect Generation Z’s interest in paying zakat digitally. Furthermore, zakat literacy in Indonesia remains relatively low. This study aims to analyze the influence of religiosity, zakat literacy, and trust on the interest of Muslim Generation Z in paying digital zakat. A quantitative approach was used with data analysis conducted through Structural Equation Modeling (SEM) using the Partial Least Square (PLS) method via SmartPLS 4.0 software. The results show that religiosity and trust have a significant effect on the intention to pay digital zakat, while zakat literacy does not have a significant impact. These findings imply that zakat institutions should focus on strategies that strengthen trust and religiosity to increase Generation Z’s participation in digital zakat payment.

The COVID-19 pandemic triggered a major transformation in the education system, bringing both opportunities and challenges due to the unfamiliar nature of remote learning. This study aims to explore how online English instruction has been implemented in public senior high schools across Bali, particularly by examining its strengths, limitations, potential benefits, and inherent risks. Employing a qualitative research design, the study involved four English teachers from four different public high schools. Data collection methods included literature analysis, in-depth interviews, and classroom observations.. The study found that online English instruction was shaped by the English for Specific Purposes (ESP) approach, with a particular emphasis on content relevant to the tourism and hospitality sectors. A variety of platforms—such as Zoom, WhatsApp, and other digital tools—were employed to deliver instruction. One of the key advantages identified was the flexibility in time and location, which allowed both students and teachers to access learning materials anytime and anywhere. Furthermore, the availability of diverse digital tools enabled teachers to creatively adapt their teaching strategies. Nonetheless, the implementation also encountered significant barriers, including inconsistent internet access and a lack of adequate digital infrastructure. The study also highlighted opportunities arising from increasing student digital literacy and the expanding use of online learning platforms, which fostered more interactive and engaging learning environments. However, several challenges remained, including low awareness among parents and varying levels of digital competence among educators, which affected the overall effectiveness of the program. The findings underscore the urgent need for sustained teacher training and institutional

This research explores the key challenges in child protection efforts carried out by UNICEF in armed conflict areas, focusing on the case of the Central African Republic (CAR). It adopts a qualitative approach with a descriptive-analytical design, drawing on a literature review of UNICEF reports, UN documents, academic publications, and other credible sources. The analysis reveals that child protection failures stem not only from technical obstacles in the field but also from deeper structural problems, including the state’s weak presence, political compromises with armed groups, and limited institutional capacity. Three major categories of barriers are identified: structural and access-related obstacles, socio-cultural and political constraints, and institutional and operational limitations. UNICEF faces significant challenges in reaching high-risk areas, gaining community trust, and ensuring program sustainability amid high dependence on external funding. Using the human security framework, this research highlights the need to understand child protection in conflict zones as a multidimensional issue requiring a long-term, contextualized approach that strengthens state structures and empowers local communities.

This study investigates doctor–patient communication strategies in overcoming verbal and non-verbal language barriers within the Pain Clinic of RSUD Genteng Banyuwangi, a public hospital in East Java, Indonesia. Pain clinics pose unique communicative challenges, as patients often struggle to express their discomfort clearly due to limited health literacy, cultural norms, or emotional inhibitions. This research aims to identify and analyze the communicative methods employed by doctors to facilitate accurate information exchange and build therapeutic rapport with patients experiencing chronic pain. Utilizing a qualitative approach, this study applies Conversation Analysis (CA) to naturally occurring doctor–patient consultations recorded through non-intrusive video methods. Verbal and non-verbal interactions were transcribed and analyzed to uncover recurring communicative patterns. The data were interpreted through sociolinguistic and pragmatic lenses to account for the local language diversity and cultural context of Banyuwangi. Findings reveal that doctors employ multiple strategies to clarify meaning and adapt communication: repetition, strategic questioning, utterance correction, and linguistic adaptation. Additionally, doctors interpret and respond to patients' non-verbal cues, including vocal tone, facial expressions, and body gestures, to supplement incomplete verbal communication. These strategies not only enhance diagnostic accuracy but also promote empathy, trust, and patient-centered care. The study concludes that effective communication in pain clinics must account for linguistic diversity, cultural sensitivities, and emotional dynamics. Adaptive and empathetic communication fosters better understanding, reduces the risk of diagnostic error, and improves treatment outcomes. The findings offer practical implications for clinical training and healthcare policy, particularly in multicultural and linguistically diverse settings.

The National Health Insurance (JKN) program, managed by BPJS Kesehatan, has formed strategic partnerships with micro and small enterprises (MSEs) to support the national healthcare service ecosystem. However, the accumulation of unsettled receivables from BPJS to its MSE partners has created significant challenges to the financial stability of this sector. Based on 2023 data, over 449,000 micro and small businesses were recorded as having outstanding receivables, with a total value exceeding IDR 2 trillion. This study adopts a descriptive quantitative approach to examine the impact of these receivables on the liquidity, solvency, and productivity of MSEs. The findings reveal that although most receivables are classified as “current,” payment delays continue to disrupt cash flow, reduce production capacity, and increase the risk of default. The analysis is grounded in the theoretical frameworks of receivables management, cash flow theory, institutional economics, and the strategic contribution of MSEs to national GDP. The results highlight the urgent need for payment system reform within BPJS, the provision of short-term financial facilities, and the implementation of delay compensation policies to ensure the sustainability of Indonesia’s micro and small enterprise sector.

This study aims to analyze the cash disbursement accounting system for building maintenance at PT Bernofarm Pharmaceutical Company, a national pharmaceutical firm that has implemented an Enterprise Resource Planning (ERP) system. The primary issue addressed is the effectiveness of internal control mechanisms in handling cash disbursements, particularly cash transactions that are susceptible to errors and fraud. A qualitative descriptive case-study approach was adopted, using the COSO Framework—including control environment, risk assessment, control activities, information & communication, and monitoring. Data were collected through direct observation, interviews, and internal document analysis. Findings indicate that PT Bernofarm has implemented segregation of duties, tiered authorizations, and effective use of ERP for recording and disbursing funds. Nonetheless, weaknesses were found regarding the timely submission of cash transaction receipts and delays in physical document reporting, which affect data accuracy. Consequently, strengthened reporting procedures and a more comprehensive digital archiving system are recommended. This research offers practical contributions to reinforcing digital-based cash disbursement accounting systems and highlights the importance of adaptive internal control in the context of cash transactions.