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BPJS Health has incurred losses exceeding 200 billion rupiah over a two-year period due to the payment of contributions that were discontinued by participants who had utilized maternity services. Data show that 64.7% of mothers registered as BPJS Health participants only one month prior to childbirth, after which 43% either withdrew their membership or failed to continue paying contributions following delivery. The highest proportion of this behavior was observed among independent participants or non-wage recipients (PBPU). In Jambi Province, the highest level of contribution non-compliance occurs in Jambi City. In 2023, there were 77,489 participants with contribution arrears, resulting in financial losses amounting to 60.1 billion rupiah. Contribution non-compliance is influenced by various factors. This study aims to analyze the factors contributing to non-compliance among independent participants in paying BPJS Health contributions after utilizing childbirth services in Jambi City. The findings revealed that 33.3% of independent participants were non-compliant in paying BPJS Health contributions after using maternity services. Significant associations were found between contribution non-compliance and the number of family members (p = 0.001), level of knowledge (p = 0.000), illness perception (p = 0.001), clinical assessment (p = 0.000), and willingness to pay (WTP). Based on these findings, it is recommended that BPJS Health consider implementing a waiting period policy for participants intending to utilize maternity services. In addition, the Jambi City Government should strengthen promotive efforts to educate the public and raise awareness of the importance of health insurance in safeguarding household financial security.  

Kebutuhan akan angkutan umum berbasis rel berdampak luas terhadap pertumbuhan penduduk dan aktivitas ekonomi Jakarta. Penelitian ini bertujuan untuk membandingkan KRL Commuter Line dan MRT Jakarta dari dua aspek Kemampuan Membayar dan Kesediaan Membayar. Analisis ini dilakukan dengan pendekatan studi literatur deskriptif-komparatif. Jurnal, prosiding, tesis, dan dokumen kebijakan yang digunakan sebagai sumber sekunder melalui analisis konten. KRL dengan tarif dasar sebesar Rp. 3.000,- mendapatkan ATP Rp. 3.770,- – Rp. 4.825,- dan WTP Rp. 3.974,- – Rp. 5.057,-, yang berarti KRL berpotensi untuk perubahan tarif sebesar Rp. 770,-. MRT Jakarta untuk tarif sebesar Rp. 14.000,- untuk fase 2A, ATP menunjukkan daya beli Rp. 17.044,- dan WTP Rp. 19.000,-. Pola penumpang terikat muncul dan sangat bergantung, di sisi ujung, dengan WTP yang tinggi dan ATP yang rendah, untuk kedua moda, menandakan MRT dan KRL sangat efisien dan nyaman. Penelitian ini berpendapat agar penyesuaian tarif dilakukan dan untuk jangka panjang, tarif perlu diikuti dengan peningkatan mutu pelayanan dengan penyesuaian yang progresif dan sesuai dengan penghasilan bagi masyarakat berpendapatan menengah ke bawah, agar mutu pelayanan tidak berkualitas rendah.

BPJS Health experienced losses due to stopped payment of contributions for participants who had utilized delivery services of more than 200 billion in a period of 2 years. It was recorded that 64.7% of mothers who were about to give birth registered as participants a month before giving birth and then stopped (43%) or behaved in adverse selection in payments after delivery. The largest percentage comes from independent participants or Non-Wage Recipient Participants (PBPU). In Jambi Province, non-compliance in paying BPJS Health contributions is highest in Jambi City. It was recorded that 77,489 participants were in arrears in 2021, resulting in losses of 60.1 billion. Non-compliance with paying contributions is adverse selection behavior. The aim of this study is to analyze the factors causing adverse selection behavior among independent participants in paying post-natal JKN contributions in Jambi City.  Quantitative study approach with a cross-sectional design carried out in Jambi City. Respondents totaling 96 people were selected based on accidental sampling technique. The study instrument is a questionnaire. Data analysis consists of univariate analysis stages and bivariate analysis using the chi-square test. The study results found that as many as 33.3% of independent participants behaved in adverse selection when paying JKN contributions after giving birth. There is a significant relationship between the factors number of family members (p=0.001), knowledge (0.000), perception of illness (p=0.001), clinical assessment (p=0.000), and willingness to pay (WTP) with adverse selection behavior in independent JKN participants postpartum. It is recommended that BPJS Health consider implementing a waiting period method for participants who will utilize maternity services. As well as increasing promotive activities for the Jambi City Government in educating and increasing public awareness about the importance of health insurance in protecting household finances.

This study aims to analyze the influence of domestic wastewater management and space utilization control on pests in river-equivalent areas in Lalat Regency. The main problem raised is the low effectiveness of environmental management in the corresponding area due to the increase in domestic activities and its weakness in spatial planning. The approach used is quantitative with multiple linear regression methods. Primary data were obtained through questionnaires to 200 respondents, and secondary data were obtained through documentation studies and field observations. The results of the analysis showed that simultaneously, the five independent variables (environmental management, space availability, community participation, government supervision, and environmental infrastructure) had a significant effect on the habitat in the corresponding area (p = 0.046). Partially, only waste management (p = 0.016) and community participation (p = 0.042) had a significant effect. A determination coefficient (R²) value of 7.5% indicates that the desires of a region are also influenced by other external factors. Based on these findings, it is recommended that the need to improve the household waste management system through the construction of communal WWTP and improve the quality of household septic tanks, as well as community empowerment through the establishment of environmental forums and sustainable sanitation education to support spatial control and poverty in commensurate areas.

This study aims to estimate the economic value of the Trokon River in Rejang Lebong Regency as a natural resource with both ecotourism potential and essential ecological functions. The research applies the Contingent Valuation Method (CVM) using a Willingness to Pay (WTP) approach to determine how much visitors and local residents are willing to contribute to the conservation of the river. Data were collected through questionnaires distributed to 100 respondents, consisting of tourists and local community members. The results show that the average WTP is IDR 12,000 per visit, with a total estimated economic value of IDR 60,000,000 per year. Significant factors influencing WTP include income level, frequency of visits, and environmental awareness. These findings indicate that the Trokon River holds considerable economic value that should be integrated into community-based conservation management. The study recommends implementing a voluntary conservation fee system and strengthening local institutions to support sustainable management.

The Snail Canning Industry has the potential to impact the environment if wastewater with high organic compound content is not treated first. This study aims to analyze the performance of the Snail Canning Industry Wastewater Treatment Plant (WWTP) based on BOD, COD, and TSS parameters. The method used is descriptive, with primary data obtained through interviews and secondary data from laboratory test results. Measurements were taken at the inlet and outlet points of the WWTP, then compared with the quality standards based on the Regulation of the Minister of Environment No. 5 of 2014. The results showed that the WWTP succeeded in reducing the concentration of BOD from 201 mg/L to 6 mg/L, COD from 315 mg/L to 24 mg/L, and TSS from 25 mg/L to 6 mg/L. The reduction efficiency of each parameter was 97.01% for BOD, 92.38% for COD, and 76% for TSS. All outlet results met the established quality standards. This indicates that the wastewater treatment process at the IPAL functions effectively in reducing the levels of pollutant parameters in wastewater.

Using a descriptive method with a triangulation approach including observation, document analysis, and interviews this study ensures data reliability. Daily monitoring is conducted on wastewater flow and pH levels, while monthly laboratory analysis covers eight key parameters: Total Suspended Solids (TSS), iron (Fe), copper (Cu), zinc (Zn), total chromium (Cr), phosphate (PO³), oil and grease, and pH to evaluate the perfomance of the treatment system. The treatment process begins with the inflow of 960 m³ of wastewater per day into the storage pond, where aeration is applied to ensure homogenization before being transferred to the neutralization unit. pH adjustment is carried out by adding NaOH or HCl before the wastewater undergoes coagulation and flocculation stages. The study’s findings indicate that the WWTP meets the environmental quality standards established in accordance with the Decree of the Head of the Investment Coordinating Board of the Republic of Indonesia (2020), Number SK.214/1/KLHK/2020 concerning the Permit for Wastewater Disposal into the Sea on Behalf of PT Pembangkit Jawa Bali Unit Pembangkitan Gresik. This study emphasizes the importance of systematic monitoring and treatment in wastewater management.

PT X is a chemical manufacturing company specializing in the production of phosphoric acid and sulfuric acid. In addition to waste generated from production processes, PT X also produces domestic wastewater originating from supporting activities such as employee barracks, offices, and laundry facilities. This domestic wastewater contains parameters that can potentially pollute the environment, such as BOD, COD, TSS, ammonia, and Total Coliform, some of which exceed the quality standards set by the Minister of Environment Regulation No. 68 of 2016. This study aims to design an effective Domestic Wastewater Treatment Plant (DWTP) system to process the domestic wastewater of PT X. The proposed DWTP system consists of a collection tank, Anaerobic Baffled Reactor (ABR), Aerobic Biofilter, and disinfection unit. Each unit is designed to reduce pollutant parameters to meet quality standards. Based on the calculations, this system can handle a wastewater flow rate of 21.91 m³/day with high treatment efficiency for critical parameters. The study results indicate that the proposed DWTP design can reduce environmental pollution, improve wastewater treatment operational efficiency, and comply with applicable regulations. Implementing this system is highly recommended to ensure environmental sustainability and the continued operations of PT X.

PT X is one of the industries located in East Java that produces liquid waste. The industrial sector is indeed a large producer of liquid waste. One of the liquid wastes produced is domestic liquid waste. The industry has the responsibility to manage domestic liquid waste in accordance with Government Regulation Number 22 of 2021 which requires industries to carry out domestic wastewater management before being discharged into water bodies. One of the efforts made by the industry to manage the domestic wastewater produced is to use a Domestic Wastewater Treatment Plant. The quality of the treated water has met the domestic wastewater quality standards to be discharged into river and does not pollute the environment.

:Pakistan is a developing country. Its transportation infrastructure mainly consists of road network. About 95% passengers and fright is transported using the road network. This high demand on road network is because of the unreliable railway system between the cities. Due to such high demand on road network the accident involvement risk of an individual is much high as compared to developed countries. This study uses a new modeling approach to estimate road safety risk for WTP.  A correlated random parameters Tobit model (heterogeneity-in-mean) is integrated with machine learning (Decision tree).  The decision tree categorizes higher-order interactions, while the model captures unobserved correlations and heterogeneity. The framework examines WTP determinants using a representative sample of 3178 road users from Pakistan. The model estimates WTP for different (fatal and severe injury) risk reductions to monetize road traffic crash costs. Results show maximum respondents are willing to support safety improvement policies. The model reveals significant WTP heterogeneity linked to perceptions of road safety and accident risk. Systematic preference heterogeneity emerges through higher-order interactions, offering insights into WTP relationships. Marginal effects highlight varying sensitivities to explanatory variables, quantifying their impact on WTP probability and magnitude. The framework provides two key contributions. It identifies public WTP determinants, emphasizing heterogeneous effects. It also helps in prioritization safety policies by understanding public sensitivity to WTP. The insights further emphasizing on the importance of road safety interventions to the specific socio-economic profiles of road users. This study offers a significant contribution to road safety improvement by providing valuable recommendations for policy makers. By integrating detailed socio-economic factors, it also addresses the urgent need for targeted traffic safety interventions in Pakistan. These findings are expected to aid policymakers and stakeholders in developing effective strategies to enhance road safety and reduce the accident involvement risk effectively.

iquid waste produced by the food industry has complex characteristics that depend on production capacity. Liquid waste treatment is carried out physically, chemically, and biologically to reduce the concentration of pollutants that pose environmental problems. PT. X is one of the companies that produces food products. The company has been implementing an environmental management system, particularly wastewater treatment, using WWTP technology. The research aims to assess the performance of liquid wastewater treatment processes at PT. X. The research method used is descriptive, with data collection through direct observation and sampling at the WWTP outlet of PT. X. After testing, the research results show that all main parameters produced by PT. X's WWTP comply with the quality standards of the East Java Governor Regulation No. 72 of 2013. Overall, the WWTP performance remains good.