The use of slang among teenagers in Medan City has become a compelling social phenomenon to study. Slang, which tends to be informal and expressive, now dominates the communication patterns of youth, even in contexts that should require the use of standard language. This research aims to describe the forms of slang used by teenagers, identify the challenges in fostering standard language, and propose strategies to harmonize the use of slang and standard Indonesian. The method used in this study includes literature review and simple observations of teenagers' daily language use in Medan. The results show that slang serves as a means of expressing identity and group solidarity but also raises concerns about the decline in the ability to use proper and correct Indonesian. The main challenges include the dominance of social media, lack of role models in standard language use, and low motivation among youth to use formal language. Therefore, innovative and communicative strategies are needed so that the younger generation can shift language contexts appropriately without abandoning the richness of standard Indonesian.
 

Purpose : The study evaluates the relationship between the elements perceptions of a good tax system – simplicity and fairness – and tax compliance.
Method : The survey was conducted using Cochran’s sampling technique with 384 respondents, drawn from personal and corporate income taxpayers, tax professionals, and tax officials across Nigeria. This study uses Partial Least Square Structural Equation Modelling (PLS-SEM) to analyse the relationship of tax simplicity and tax fairness with tax compliance.
Findings : The study found that there is a significant relationship between tax simplicity and tax compliance. It was also found that tax fairness perception has a substantial relationship with tax compliance.
Novelty : Some earlier studies have identified varied factors affecting tax compliance behaviour such as audits, tax education, trust in tax authorities and tax morale. This study identifies the interplay of tax simplicity and fairness in determining the tax compliance behaviour. It underscores that in a well-structured tax system, characterised by streamlined tax laws, if tax can be levied on taxable objects (people or organisations), then tax can provide benefits to both taxable objects and the government.

The quality of human resources is an important aspect in regional development, which is reflected through the Human Development Index (HDI). HDI is influenced by various factors, including the economic conditions and education of the community. This study aims to analyze the effect of Gross Regional Domestic Product (GRDP) per capita and Average Length of Schooling (RLS) on HDI in South Kalimantan Province. The data used comes from the Central Statistics Agency (BPS) with a coverage of 13 regencies/cities during the period 2018 to 2023. The analysis method used is multiple linear regression with the help of R Studio software. The results of the study show that both GRDP per capita and RLS have a significant effect on HDI, both simultaneously and partially. The resulting model has an adjusted R² value of 0.8627, which indicates that 86.27% of the variation in HDI can be explained by these two variables. The classical assumption test including linearity, conditional zero error expectation, absence of multicollinearity, autocorrelation, homoscedasticity, and residual normality shows that the model used has met all the criteria as the Best Linear Unbiased Estimator (BLUE). Thus, this regression model is valid for use in estimating and making inferences on the factors that influence the HDI in South Kalimantan Province. This finding confirms that increasing education and economic growth are strategic steps in accelerating human development in South Kalimantan.

This study explores students’ perceptions of podcast media used by English teachers in teaching listening comprehension at MA Darul Ulum Palangka Raya. Using a qualitative case study design, data were collected from 27 tenth-grade students through questionnaires, semi-structured interviews, observation, and documentation. The findings show that students generally held positive perceptions toward podcasts. Despite initial difficulties such as understanding native speakers’ accents, rapid speech, and limited vocabulary students overcame these challenges using strategies like repetition, subtitles, note-taking, and translation tools. Podcasts were found to support improvements in pronunciation, vocabulary, and overall listening comprehension. Students also appreciated the flexibility, accessibility, and engaging content podcasts offer, which enhanced their motivation in learning. However, some obstacles such as lack of consistency and motivation were also reported. Still, students developed adaptive strategies to stay engaged. This study concludes that podcast media can be an effective tool for improving EFL students’ listening skills when integrated with proper guidance and regular practice. The findings highlight the potential of podcasts as a supportive and accessible medium in English language instruction.

 
This study focuses on strategies to prevent stunting prevalence, which to date have shown inconsistent results. Several previous studies have stated that stunting prevalence cannot be prevented optimally because it is influenced by other factors, such as early marriage and low family literacy. This study uses a qualitative approach with in-depth interview techniques with a number of key informants, including families, community leaders, and health workers. The purpose of the interviews was to gain a deeper understanding of the effectiveness of stunting prevention efforts. The research findings show that the mechanism for preventing stunting prevalence is starting to show improvement. However, these efforts will be more optimal if there is synergy between families, community institutions, and the government in providing education, especially regarding the negative impacts of early marriage. Multi-party collaboration is an important key in building collective awareness and strengthening efforts to prevent stunting sustainably.

Perkembangan teknologi digital telah mendorong transformasi besar dalam pendidikan, khususnya dalam pembelajaran fisika yang selama ini dianggap abstrak dan sulit dipahami. Artikel ini bertujuan untuk mengkaji secara kritis integrasi teknologi Augmented Reality (AR), Artificial Intelligence (AI), dan Mixed Reality (MR) dalam pembelajaran fisika berbasis pendekatan STEM. Penelitian ini menggunakan pendekatan kualitatif deskriptif dengan metode studi literatur sistematis, yang melibatkan analisis tematik terhadap berbagai publikasi ilmiah dari database bereputasi. Hasil penelitian menunjukkan bahwa AR mampu meningkatkan pemahaman konseptual siswa terhadap konsep fisika abstrak hingga 30%, AI menyediakan pembelajaran adaptif dan diagnostik kesulitan belajar secara real-time, dan MR memberikan pengalaman belajar kontekstual yang lebih mendalam. Integrasi ketiga teknologi ini terbukti memperkuat pembelajaran lintas disiplin serta memperluas akses pembelajaran yang inklusif. Penelitian ini memberikan kontribusi signifikan terhadap pengembangan kurikulum STEM yang lebih adaptif dan berbasis teknologi, sekaligus memperkaya literatur pedagogi digital di Indonesia. Meskipun terbatas pada data sekunder, temuan ini membuka peluang besar untuk eksplorasi lanjutan melalui pendekatan eksperimen di ruang kelas nyata guna memvalidasi dampak empiris dari teknologi tersebut.

The purpose of the study was to determine the implementation of the Village Head's Leadership Style in Increasing Community Participation in Drainage Infrastructure Development in Ampibabo in Ampibabo Village, Ampibabo District, Parigi Moutong Regency. The type of research is descriptive with a qualitative approach; purposive informant determination technique; data collection through observation, interviews, documentation; and data analysis techniques using interactive models, namely data condensation, data presentation, and drawing conclusions. The results of the study showed that the Village Head's Leadership Style in Increasing Community Participation in Drainage Infrastructure Development in Ampibabo in Ampibabo Village, Ampibabo District, Parigi Moutong Regency has been implemented but has not been optimal. This can be seen in the instructive and consultative leadership styles, both of which have been implemented well. While the participation and delegation leadership styles have not been implemented as expected. The village head is expected to be able to encourage the community to participate so that drainage development runs quickly and smoothly for the progress of Ampibabo Village development. In addition, village officials (subordinates) can also increase their knowledge through formal and informal education so that the delegation given by the village head can be understood so that the task runs well.

This research analyzes user sentiment reviews of the KAI Access application from Google Play Store to improve customer service at PT Kereta Api Indonesia. The study uses a Natural Language Processing (NLP) approach with the Latent Dirichlet Allocation (LDA) algorithm to extract main topics from 10,000 reviews collected from April 2024 to April 2025. Analysis results show 40.7% positive sentiment reviews and 49.3% negative. After data preprocessing through case folding, normalization, tokenization, stopword removal, and stemming, seven optimum topics were found from negative sentiment with a coherence score of 0.508343 and two optimum topics from positive sentiment with a coherence score of 0.511673. Analysis based on five service quality dimensions (tangibles, reliability, responsiveness, assurance, and empathy) reveals that the reliability dimension becomes the main issue, including system instability, transaction failures, login difficulties, and data inaccuracy. The responsiveness dimension is the second priority, with users expecting fast and responsive service to complaints. The results of this study provide recommendations for PT KAI to prioritize improvements in system reliability and responsiveness aspects to enhance the overall user experience, which will ultimately impact customer satisfaction and loyalty.
 
 

Indonesia sebagai negara tropis memiliki sumber daya alam yang melimpah, salah satunya yaitu tanaman kelapa (Cocos nucifera L.). Sabut kelapa merupakan produk samping dari tanaman kelapa yang memiliki berbagai manfaat. Pada penelitian ini diperoleh rendemen selulosa dari sabut kelapa sebesar 58,72%. Keberhasilan isolasi selulosa ditunjukan dengan munculnya puncak gugus fungsi O-H, C-H, dan C-O pada spektrum FTIR. Sintesis selulosa asetat telah dilakukan dengan memvariasikan perbandingan antara berat selulosa dan volume anhidrida asetat (1:10 dan 1:20) (b/v). Rendemen selulosa asetat hasil sintesis berturut-turut yaitu 30,44% dan 28,22%. Hasil sintesis menunjukan bahwa jenis selulosa asetat yang dihasilkan adalah selulosa monoasetat dengan derajat substitusi (DS) berturut-turut yaitu 0,48 dan 0,44. Keberhasilan sintesis selulosa asetat ditunjukan dengan munculnya puncak gugus fungsi O-H, C-H, C=O, dan C-O pada spektrum FTIR. Pada penelitian ini, selulosa asetat diaplikasikan dalam bioplastik dengan variasi konsentrasi 0%, 10%, 15%, 20%, dan 25% (b/b) dari berat tepung nasi aking. Aplikasi tersebut bertujuan untuk mengetahui pengaruh konsentrasi selulosa asetat terhadap sifat mekanik dan fisik bioplastik. Hasil analisis menunjukan bahwa penambahan konsentrasi selulosa asetat menghasilkan nilai tertinggi untuk kuat tarik sebesar 13,58 MPa, persen elongasi sebesar 3,66%, modulus elastisitas sebesar 9,64 MPa, dan mampu menahan air sebesar 49,90%. Berdasarkan hasil pengujian sifat mekanik, bioplastik berbasis selulosa asetat belum memenuhi standar bioplastik pada SNI-7188.7:2016.

This study aims to analyze the influence of Gross Regional Domestic Product (GRDP), Average Years of Schooling (AYS), Provincial Minimum Wage (PMW), and realized foreign investment on the Labor Force Participation Rate (LFPR). The background of this research is based on the urgency of understanding labor market dynamics as a strategic indicator of economic development, particularly following the COVID-19 pandemic. A quantitative approach is utilized in this study, applying panel data regression across 34 provinces in Indonesia during the period 2020–2023. The analysis results indicate that GRDP, AYS, PMW, and foreign investment have a positive and significant influence on LFPR. An increase in the average years of schooling reflects an improvement in human resource quality, which encourages labor force participation. The rise in the Provincial Minimum Wage plays a role in strengthening incentives to enter the formal labor market. GRDP growth demonstrates an economic expansion effect that broadens job opportunities, while foreign investment serves as a catalyst in the creation of new employment opportunities.These findings offer important implications for the formulation of strategic policies in the fields of employment, education, and investment, specifically in strengthening the involvement of the productive workforce in Indonesia's development and output creation.