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This study examines the stock market reaction to the Christmas and New Year holidays by analyzing abnormal return and trading volume activity for companies consistently listed in the LQ45 Index during 2021–2023. Using a quantitative causal approach and an event study design, the research observes market behavior within a 10 day estimation window and a 10 8day event window surrounding the holiday period. The findings show that abnormal return exhibits limited but notable reactions, with a significant decline observed before the holiday, indicating that investors tend to reduce risk exposure prior to market closure. After the holiday, significant movements still appear, but they remain negative, suggesting that investor activity and confidence have not fully recovered. In contrast, trading volume activity does not show significant differences either before or after the holiday, implying that changes in prices are influenced more by sentiment and price adjustments rather than shifts in trading intensity. These results indicate that the Indonesian capital market demonstrates characteristics of a semi-strong form efficiency, where public information such as national holidays is largely anticipated and absorbed by the market.

This study aims to increase student interest in Social Studies (IPS) through the use of varied learning media in third-grade students at SD Pembangunan Laboratorium UNP. The typically boring nature of Social Studies learning can be addressed by presenting engaging media tailored to student characteristics. Varied learning media, such as educational videos, images, interactive games, and props, are expected to engage students, engage them, and enhance their understanding of the material. This study used a qualitative approach through observation and interviews to determine students' responses to the use of these media. The results showed that the use of diverse learning media increased student motivation and interest in Social Studies lessons. Students appeared more enthusiastic in discussions, asking questions, and completing assigned assignments. Thus, the use of varied media not only increased student interest but also strengthened their understanding of the material presented. This study recommends that educators at SD Pembangunan Laboratorium UNP optimize the use of varied learning media to improve the quality of Social Studies learning, thereby making the teaching and learning process more enjoyable and effective.

This study examines the phonological disorder in the form of mild articulatory dysarthria experienced by actress Junior Roberts in an entertainment media interview on the Cinema 21 YouTube channel. The study was conducted using a phonological approach, specifically articulatory phonetics, to analyze the inaccuracy of pronunciation of language sounds in spontaneous speech. This study used a qualitative descriptive method with the Free Listening and Speaking (SBLC) technique as a means of data collection. The analysis results indicate that the phonological disorder experienced by the subject is evident in the phoneme /r/ through three main processes: substitution (/r/ is replaced by /l/ or /y/), elision (the /r/ sound is lost), and distortion (the /r/ sound is heard muffled). This disorder is caused by articulatory muscle weakness due to neuromotor dysfunction. Despite this, the subject displayed a positive attitude and made her speech characteristics a personal identity in the entertainment world. This study confirms that the study of phonology does not only focus on the sound aspects of language but also encompasses the physiological, psychological, and social dimensions that influence human speech production.

This study employs the Systematic Literature Review (SLR) method following the PRISMA 2020 Statement guidelines to identify the main models and indicators used in measuring the performance of Micro, Small, and Medium Enterprises (MSMEs). The literature selection process includes the stages of identification, screening, eligibility assessment, and inclusion, resulting in ten articles from reputable Q1 international journals. The analysis reveals that the most frequently used performance measurement models are integrated performance models such as the Balanced Scorecard, Performance Prism, and models based on resource capability, customer, internal process, and financial perspectives. Commonly used indicators include sales growth, profitability, market share, customer satisfaction, process flexibility, technology adoption, and business sustainability. The study concludes that although financial measures remain dominant, non-financial dimensions—such as digital capability, stakeholder engagement, and internal process effectiveness—are increasingly important for MSMEs operating in the context of global market dynamics and digital transformation. The implications of this study provide theoretical contributions to the development of MSME performance measurement frameworks and offer practical guidance for MSME managers in selecting indicators that align with the characteristics of small and medium-sized enterprises.

This study examines the influence of internal communication and leadership style on employee work motivation at Public Relation Agency XYZ. The research focuses on understanding how these two organizational factors shape the motivation levels of employees, particularly freelance experts who contribute significantly to the agency’s performance and service quality. Using a quantitative approach, data were collected through a structured survey designed to capture employees’ perceptions of communication effectiveness, leadership characteristics, and motivational conditions within the agency. The collected data were then analyzed using SmartPLS to test the proposed relationships. The findings indicate that both internal communication and leadership style exert a significant and positive influence on work motivation, highlighting the crucial role of clear information flow and supportive leadership behavior. Moreover, the results suggest that enhancing communication practices and applying a more transformational leadership style can substantially improve employee motivation. This study offers practical recommendations for strengthening internal communication systems and leadership development initiatives to foster higher engagement, productivity, and overall motivation among employees at Public Relation Agency XYZ.

Carbonate rocks are one of the most important geological resources with a significant role in various industrial sectors, particularly as the main raw material in cement, lime, and construction industries. This study aims to review the characteristics, quality, and industrial potential of three major carbonate rock types—limestone, dolomite, and marble—based on relevant scientific literature. The research employed a literature review method using a qualitative-descriptive approach through analysis and synthesis of previous studies. Data were collected from scientific publications addressing the mineralogical, chemical, and physical aspects of carbonate rocks and their implications for industrial performance. The findings indicate that the quality of carbonate rocks is largely determined by mineral composition (calcite and dolomite), chemical purity (CaO and MgO), and the presence of impurities such as silica, alumina, and iron oxides. High-purity limestone rich in calcite is identified as the most efficient raw material for cement and lime industries due to its stable processing behavior and lower energy requirements. Conversely, dolomite with high magnesium content requires process adjustments to prevent excessive MgO formation during calcination. Marble, both in natural and waste powder form, shows promising potential as a supplementary material in sustainable cement production. Overall, this study emphasizes that understanding the mineralogical and chemical variations of carbonate rocks is essential for optimizing their processing strategies and promoting sustainable industrial utilization 

This experiment investigates the heat transfer characteristics of an ice bag gel phase change material (PCM) incorporated within bricks. The study seeks to investigate the performance of ice bag gel as PCM in improving thermal behavior of building material. The experiment consisted of subjecting brick samples with and without ice bag gel PCM to thermal cycles in a semi-automated laboratory setup. The results indicate that ice bag gel PCM incorporated in bricks exhibited minimal changes and better heat transfer as compared to the dry bricks. It was observed that the ice bag gel PCM registered lower peak temperature and slower rates of temperature drop which means their heat storage and release characteristics were efficient. Furthermore, the ice bag gel system produced a steady radiation flux, indicating that it was able to minimize the effects of temperature variations. These results imply that ice bag gel PCM has the potential to be a green and economical option for enhancing thermal comfort and decrease energy consumption in buildings.

The School-Based Curriculum (KSP) is an operational curriculum developed by educational units to align learning objectives with the characteristics of students, local potentials, and the evolving needs of society. KSP provides schools with autonomy to develop curricula that are relevant to their local context, allowing for variations in the approach to learning. This article aims to discuss the basic concept of KSP, the challenges in its implementation, and its evaluation in the context of Indonesian education. The research method used is a literature review, analyzing theories and regulations related to KSP. The results show that KSP plays a strategic role in providing schools with the flexibility to develop curricula that meet the needs of the region and students. However, the implementation of KSP still faces various challenges, such as limited teacher competencies, insufficient understanding of curriculum principles, and weak evaluation and supervision of curriculum implementation. To address these challenges, the evaluation of KSP implementation needs to be strengthened by improving teachers' competencies, developing relevant learning materials, and enhancing ongoing curriculum supervision. By doing so, KSP can be optimized to achieve better educational outcomes in Indonesia.  

Background: Mental health during pregnancy is influenced by multiple factors, including the social environment. Family support, peer interactions, and community engagement are critical determinants of psychological well-being, yet their impact local community health settings remains underexplored. Objective: This study aimed examine the influence the social environment the mental health pregnant women Tilongka Billa Community Health Center. Methods: A quantitative correlational study was conducted with 70 pregnant women selected through purposive sampling. Data were collected using structured questionnaires assessing demographic characteristics, social support (family, peer, and community), and mental health status (Perceived Stress Scale and Edinburgh Postnatal Depression Scale). Descriptive statistics summarized the participants’ characteristics, while Pearson Spearman correlation tests analyzed relationships between social environment factors mental health outcomes (p < 0.05). Results: The results indicated that family support had the highest mean score (4.1 ± 0.7), followed by peer support (3.8 ± 0.8) and community involvement (3.5 ± 0.9). Mental health assessments revealed moderate stress levels (18.2 ± 5.0) and mild depression risk (9.5 ± 4.3). Correlation analysis showed significant negative relationships between social support and mental health indicators, with family support exhibiting the strongest correlation with reduced stress (r = -0.48, p = 0.002) and depression (r = -0.52, p = 0.001). Conclusion: The study demonstrates that supportive social environment, particularly family and peer support, plays crucial role in reducing stress and depressive symptoms among pregnant women. Strengthening social support networks through counseling, peer groups, and community engagement programs may enhance maternal mental health and promote positive pregnancy outcomes.

Cervical cancer remains a major public health problem and is one of the leading causes of cancer-related mortality among women in Indonesia. Early detection through Visual Inspection with Acetic Acid (VIA) is an effective and feasible screening method at the primary health care level. However, the coverage of VIA screening among women of reproductive age (WRA) remains low. Knowledge is considered an important predisposing factor that may influence women’s motivation to undergo VIA screening. This study aimed to analyze the association between cervical cancer knowledge and motivation to undergo VIA screening among women of reproductive age. This study employed a quantitative analytic design with a cross-sectional approach. A total of 105 women of reproductive age were recruited using consecutive sampling at the Payangan Community Health Center, Gianyar Regency, Indonesia. Data were collected using validated and reliable structured questionnaires measuring cervical cancer knowledge and motivation to undergo VIA screening. Univariate analysis was performed to describe respondent characteristics, while bivariate analysis using the chi-square test was applied to examine the association between knowledge and motivation at a significance level of 5%. The results showed that 61.9% of respondents had good knowledge of cervical cancer, while 52.4% demonstrated low motivation to undergo VIA screening. A statistically significant association was found between cervical cancer knowledge and motivation to undergo VIA screening (p = 0.043). Women with higher levels of knowledge tended to have greater motivation to participate in VIA screening. In conclusion, cervical cancer knowledge is significantly associated with motivation to undergo VIA screening among women of reproductive age. These findings suggest that strengthening health education interventions at primary health care facilities is essential to enhance motivation and increase participation in early cervical cancer detection programs.

This article examines the implications of parental verbal violence on the socio-emotional development of early childhood aged 3–6 years. The study was conducted through an extensive literature review supported by general field observations in community settings. The purpose of this research is to describe the phenomenon of verbal violence experienced by young children, analyze its effects on their emotional security, self-confidence, and social adaptation, and identify contributing factors from both the family environment and parental characteristics. Using a qualitative descriptive approach, relevant books, journal articles, and institutional reports were synthesized to construct a comprehensive understanding of how negative communication patterns shape children’s socio-emotional development. The findings indicate that verbal violence such as yelling, scolding, insulting, labeling, and threatening can disrupt children’s emotional regulation, lower their self-esteem, and hinder their ability to interact positively with peers. Repeated exposure to harsh language also increases the risk of anxiety, aggression, and social withdrawal. Conversely, positive, supportive, and empathetic parental communication fosters emotional resilience, empathy, and healthy social behavior. This article highlights the urgent need for parents, educators, and communities to strengthen awareness regarding the harmful impact of verbal violence and to promote nurturing communication practices that support the holistic development of young children.

This research is motivated by the author's desire to improve student abilities and to  Educational quality refers to the level of excellence of an educational system or process in a school, measured by the institution’s ability to meet established standards in terms of input, process, output, and outcome. Therefore, this study aims to describe the forms of collaboration between subject teachers in suporting the improvement of learning quality at the UPT SPF SD Inpres Malengkeri Bertingkat I. The study employs a descriptive qualitative approach. Data were collected through observations, interviews, and document analysis, and were analyzed through the stages of deconstruction, interpretation, and reconstruction. The findings show that teacher collaboration occurs actively and continuously through meetings, routine discussions, item reviews, and informal activities such as the Teacher Working Group (TWG). The main supporting factors of collaboration include participatory school leadership, open communication, and an inclusive work culture, while the primary obstacles involve differences in opinions related to teaching strategies and student characteristics. The established collaboration has a positive impact on improving learning effectiveness, professional reflection, teacher creativity, and student learning outcomes through the transfer of best practices and structured feedback mechanisms. Thus, teacher collaboration plays a significant role in strengthening the culture of quality and enhancing learning quality in elementary schools.

This study aims to examine customer segmentation through K-Means clustering from a customer data management perspective, emphasizing the interpretive value of analytical results rather than solely their computational outcomes. The research addresses a critical issue in contemporary data-driven organizations, where customer analytics is often reduced to technical modeling without sufficient translation into managerial insights. To respond to this gap, the study adopts a qualitative interpretive approach embedded within a quantitative clustering process, positioning clustering as part of a broader information management cycle. The empirical analysis is based on the Mall Customers Dataset obtained from Kaggle, consisting of 200 customer records with numerical attributes representing age, annual income, and spending score. Quantitative processing using K-Means clustering was employed to identify customer segments, while qualitative interpretation was applied to analyze the managerial meaning of each cluster. Data interpretation was supported by analytical documentation, visualization outputs, and reflective analysis of cluster characteristics. The findings reveal four distinct customer segments with different behavioral and economic profiles, each carrying specific strategic implications for customer relationship management and marketing decision-making. The study demonstrates that the primary value of clustering lies not merely in segment formation, but in its ability to transform raw customer data into actionable managerial knowledge. In conclusion, this research contributes to customer analytics literature by integrating data mining techniques with qualitative interpretation, offering a more human-centered and decision-oriented framework for customer data management. Future research is encouraged to extend this approach using organizational case studies or participatory decision-making contexts.

Acute Respiratory Infections (ARI) in the working area of Mulyorejo Public Health Center, where an aluminum factory is located, rank first among the ten most common diseases. This study aims to analyze the influence of sociodemographic characteristics and PM2.5 exposure on ARI complaints in the aluminum factory area of Payageli Village, Deli Serdang Regency. The cross-sectional observational study involved 160 housewives living within a radius of 10–1500 meters from the factory’s chimney. The analysis included univariate, bivariate, and multivariate methods. Results showed that 58.1% of respondents experienced ARI symptoms in the past month. The average ambient (outdoor) PM2.5 concentration measured from three sampling points was 12.3 µg/m³, which did not exceed the WHO standard (<15 µg/m³). The highest concentration was recorded in the southern direction (15.5 µg/m³). Bivariate analysis indicated that education (p = 0.010), direction of house location (p = 0.001), and indoor PM2.5 concentration (p = 0.006) were significantly associated with ARI. Multivariate logistic regression analysis showed that the most dominant factor influencing ARI was indoor PM2.5 concentration (p = 0.039), followed by education (p = 0.013) and direction of house location (p = 0.001). This study provides a scientific basis for air quality control and housing environment improvement to reduce the risk of environmentally related diseases in industrial zones.

Nata de corn is nata made from corn. Corn contains the element carbon which can fulfill the needs of Acetobacter xylinum in the formation of nata. This study used corn extract to replace coconut water and used natural nitrogen sources from mung bean sprout extract, soybean sprout extract and cowpea sprout extract. The aimed study to determine characteristics of nata  which the thickest and highest fiber. This study used factorial RAL, with 2 factors, namely factor 1 was the percentage of corn extract (10%; 20% and 30%) and factor 2 was the variation of nitrogen sources (mung bean sprout extract, soybean sprout extract and cowpea sprout extract). The purpose of this study was to determine the physicochemical characteristics of Nata de corn and determine the best formulation for Nata de corn. The results of the best treatment formulation in the manufacture of Nata de corn were 30% corn seed extract formulation with 7.5 ml soybean sprout extract, 2.05% crude fiber chemical characteristic test, 0.15% total sugar and 0.97% water content. The resulting nata de corn has organoleptic characteristics of a yellowish-white color with a value of 1.95; less elastic with an elasticity value of 2.06 and slightly springy with a value of 2.72. The results of physical observations with a thickness of 0.72 cm, a weight of 599.8 grams and a volume of 4 ml of fermented residual liquid. Nata de corn has the potential to be a source of food fiber.

This study aims to examine the contribution of educational psychology in the context of Christian education, particularly for educators, school principals, Christian Religious Education (CRE) teachers, Sunday school teachers, pastors, elders, and church servants. This theoretical study shows that educational psychology helps in understanding the characteristics of learners, optimizing teaching methods, building effective teacher-student relationships, and enhancing motivation and involvement in the learning and preaching process. The research method used is a descriptive qualitative approach, collecting data through a review of books, literature, journals, notes, and relevant reports. Educational psychology plays a significant role for all those involved in Christian education and ministry. CRE teachers and Sunday school teachers have a crucial role in instilling faith values in the younger generation by understanding the learning needs of children according to their cognitive and spiritual development stages. This enables them to deliver God's word in an engaging and meaningful way. Meanwhile, pastors, elders, and church servants require an understanding of educational psychology to carry out more wise pastoral ministry. Psychological understanding helps them provide spiritual guidance, counseling, and support for members who are struggling. Educational psychology also equips church servants to lead with empathy, listen with their hearts, and guide the congregation towards true spiritual restoration. The integration of educational psychology with Christian faith significantly impacts the improvement of learning and church ministry, producing individuals who are intellectually, emotionally, and spiritually balanced.

This study examines and provides a descriptive analysis of Omah Pulung, a residential house located in Banyumanik, Semarang City, Central Java. The focus of the research is directed at the application of a minimalist architectural style that emphasizes simplicity of form, spatial efficiency, and aesthetic aspects that are in harmony with the characteristics of the building. The principles of minimalist architecture are applied through the selection of simple but functional materials, optimal natural lighting arrangements, and air circulation systems that are suitable for Indonesia's tropical climate. The research method uses a qualitative approach with observation, documentation, and descriptive analysis techniques to explore the physical and functional characteristics of the house. The results of the study show that Omah Pulung successfully represents the principle of minimalism through simple geometric shapes, efficient use of space, and natural lighting that supports the comfort of residents. In addition, good air circulation strengthens the adaptation of the house to tropical climatic conditions so that healthy and sustainable housing is created. This research contributes to the understanding of the application of minimalist architecture in the local context, as well as a reference for the development of residential design that is environmentally friendly and according to the needs of urban communities in Indonesia.

The purpose of this study is to analyse the comparison of sensory characteristics between original putu ayu cake and a variant with a 25% substitution of kale leaf flour. The substitution of kale leaf flour is expected to serve as a natural alternative for coloring while also improving the cake's nutritional value. This research utilized a quantitative experimental approach, involving organoleptic testing with 62 panelists from the Brangsong Baru Housing. The panelists evaluated four sensory aspects: aroma, color, taste, and texture. The results from the organoleptic tests showed that substituting kale leaf flour positively influenced the aroma of the putu ayu cake without compromising its texture. However, the color and taste still require improvements to enhance the overall consumer acceptance of the cake. These findings highlight the potential of kale leaf flour as a functional ingredient in traditional cakes, offering a healthier alternative while maintaining the sensory qualities that consumers expect.

This research examines the thought of Khawarij and Murji'ah in contemporary Islamic context with a focus on the relevance and application of these historical theological concepts to issues of extremism and moderation in the modern era. Through a qualitative approach with library research method, this study analyzes the doctrines of both groups and contemporary manifestations of their thinking. The results show that contemporary religious extremism phenomena have ideological connections with classical Khawarij characteristics such as takfirism, textual literalism, and tendency toward violence, while excessive political apathy reflects similarities with Murji'ah. The main challenges identified are how to balance religious commitment with tolerance in plural societies, and to overcome extreme tendencies in religious interpretation. In conclusion, a deep understanding of the historical roots of this thought can contribute to the development of a comprehensive approach to religious moderation in the modern era, with significant implications for social harmony and deradicalization efforts.

Indonesia's adolescent pregnancy prevalence necessitates comprehensive determinant identification for evidence-based preventive strategy formulation. This research analyzes correlations between reproductive health knowledge, parental role functioning, and peer influence on teenage pregnancy among female adolescents in Ciseeng Health Center, Bogor Regency, West Java Province. Cross-sectional design employed among 65 adolescents aged 15-19 years during October 2024-January 2025 using stratified random sampling. Data collection utilized validated questionnaires based on WHO Adolescent Sexual and Reproductive Health Indicators, Parental Monitoring and Support Scale, and Peer Pressure Inventory with Cronbach Alpha (α=0.84; 0.81; 0.79). Demographic characteristics showed 60% aged 17-19 years, 40% aged 15-16 years, with 55.4% experienced pregnancy validated through medical records. Univariate analysis identified knowledge deficiency (64.6%), parental dysfunction (63.1%), and high peer influence (66.2%). Chi-Square analysis confirmed associations of low knowledge (p=0.001; OR=3.5; 95% CI=1.8-6.7), inadequate parental roles (p=0.002; OR=3.2; 95% CI=1.6-6.1), and dominant peer influence (p=0.001; OR=3.8; 95% CI=1.9-7.2) with adolescent pregnancy. Multivariate logistic regression identified peer influence as strongest predictor (AOR=3.80; 95% CI=1.67-8.65).