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The separator membranes is one of the lithium ion battery components which functions to prevent short circuits in the battery cells and the lithium ion transfer medium. Types of polymers that can be used for separation membranes include polyethylene, polypropylene, polyvinylide fluoride (PVDF), polyacrylonitrile (PAN), polyvinyl alcohol (PVA), polyethylene oxide (PEO), and polymethyl methacrylate (PMMA). PVDF polymer was selected because it has the advantages of high polarity, high dielectric constant, and excellent electrochemical stability. However, the polymer has a weakness, namely a relatively high level of crystallinity, so it needs to be blended with Cellulose Acetate (CA) to reduce the degree of crystallinity and improve membranes performance. Fillers are used as additives to increase ionic conductivity. This research aims to determine the effect of nanoclay filler concentration on PVDF/CA membranes. The membranes solution was made by mixing CA, PVDF, nanoclay, and PVP addictive, with variations of nanoclay (0; 1.75; 3.59; 5.22; 6.94; and 8.46 %wt). The CA/PVDF membranes was then put through characterisation testing with FTIR, XRD, SEM, electrolyte uptake, and porosity. According to the test results, the best characterisation results are found in membranes with variations of nanoclay 6.94 %wt, which have electrolyte uptake values of 78.208% and porosity values of 97.520%.

The objective of this research is to estimate the probability of pregnancy resumption after discontinuing reversible contraceptives-pills, injectables, implants and IUDs, and to examine the factors associated with the resumption of fertility. The study uses pregnancy calendar data from Indonesia Demographic and Health Surveys (IDHS) of 2007, 2012 and 2017. A hazard model survival method is used for estimating the time needed to resume pregnancy since discontinuing reversible contraceptives. Retrospective data on 4,573; 5,183 and 5,989 episodes of reversible contraceptive discontinuation at the three surveys respectively have been analysed. This study shows that women regained fecundity within one year of discontinuing IUD, pill, injectables or implants. Women using IUD could resume their pregnancy faster than those using implants, pills and injectables. Over the three IDHS 2007, 2012 and 2017 the age-specific percentages of women becoming pregnant after one year of contraceptive discontinuation vary between 72 and 85 for IUD, 75 and 81 for pills, 72 and 76 for implants and 64 and 67 for injectables, with the percentages being higher among younger women. The analysis further shows that length of contraceptive use, parity, prior sexually transmitted infections, knowledge of fertile period, household wealth status and place of residence have no impact on occurrence of pregnancy after contraceptive discontinuation. The analysis disproves a myth that reversible contraceptives make women infertile. Depending on the type of reversible contraceptive used, 65% to 85% of the women were able to conceive after one year of discontinuation.

Electric ducted fans can be used to generate the necessary force and moment for propulsion in many applications. It powered by an electric motor that rotates a multi-bladed propeller. EDF has different specifications for each size, in this study the focus is on knowing the thrust generated by the EDF using the computational fluid dynamics (CFD) method. Fibonacci number of blade is used 5, 8, and 13 blades with a diameter of 80 mm, with a duct housing size of 81 mm in diameter. The geometry model used refers to the 80 mm FMS brand EDF. The thrust value for each variation in the number of blades continues to increase as the rotational speed increases.

Objective: This study aims to evaluate the influence of dietary flavonoids on the growth performance, blood and intestinal profiles, and carcass characteristics of broilers by employing a meta-analysis method.Methods: A database was built from published studies which have reported on the addition of various levels of flavonoids from herbs into broiler diets and then monitored growth performance, blood constituents, carcass proportion and small intestinal morphology. A total of 42 articles were integrated into the database. Several forms of flavonoids in herbs were applied in the form of unextracted and crude extracts. The database compiled was statistically analyzed using mixed model methodology. Different studies were considered as random effects, and the doses of flavonoids were treated as fixed effects. The model statistics used were the p-values and the Akaike information criterion. The significance of an effect was stated when its p-value was <0.05.Results: Dietary flavonoids increased (quadratic pattern; p<0.05) the average daily gain of broilers in the finisher phase. There was a reduction (p<0.01) in the feed conversion ratio of the broilers both in the starter (linear pattern) and finisher phases (quadratic pattern). The mortality rate tended to decrease linearly (p<0.1) with the addition of flavonoids, while the carcass parameter was generally not influenced. A reduction (p<0.001) in cholesterol and malondialdehyde concentrations (both linearly) was observed, while super oxide dismutase activity increased linearly (p<0.001). Increasing the dose of flavonoids increased (p<0.01) the villus height (VH) and villus height and crypt depth (VH:CD) ratio (p<0.05) in the duodenum. Similarly, the VH:CD ratio was elevated (p<0.001) in the jejunum following flavonoid supplementation.Conclusion: Increasing levels of flavonoids in broilers diet leads to an improvement in growth performance, blood constituents, carcass composition and small intestinal morphology.

Public health is one of the basic sectors that are influenced by transportation. Public health factors related with transportation performances are environmental quality, people access to health facilities, traffic safety, mode choice and its relationship with health, and disease spreading risk. Based on the case of Transportation Master Plan (Rencana Induk Transportasi Jakarta, RITJ) of Capital Jakarta, Indonesia, this paper explores the topic of how adequate urban transportation planning in Indonesia accommodate health factors in its process and substance. This study takes quantitative method to identify Jakarta transportation condition in relation with health sector and to understand to what extent transportation planning accommodate health factors. Qualitative method is also used to analyze people perception regarding the level of the transportation planning process in accommodating their interest in health. The research concludes that the negative impact of transportation activities to the health sector in Jakarta such as air pollution, traffic accident, and passive mode choice are still high. The RITJ planning process did not accommodate urban health criteria adequately. This paper suggests a better transportation planning to assure adequate accommodation of urban health criteria both in its process and substances.

Accommodating the needs of Indonesia’s rapidly growing urban population is essential to reaching national reproductive health goals and international commitments. As in other rapidly urbanizing low- and middle-income countries, satisfying the needs of Indonesia’s urban poor is both a high priority and a significant challenge. In this study, we assessed both how being from urban poor or near-poor households affects the quantity and quality of family planning and maternal health services received and the extent to which differentials had narrowed during the 2012–2017 period. This time interval is significant due to the introduction of a national social health insurance scheme in 2014, establishing the foundation for universal health care in the country. Data from the 2012 and 2017 Indonesian Demographic and Health Surveys were analyzed using logistic and multinomial logit regression. Poverty status was measured in terms of urban household wealth quintiles. For family planning, although urban poor and near-poor women made different method choices than non-poor women, no substantial 2017 differences in contraceptive prevalence, unmet need for family planning or informed choice were observed. However, urban poor women and to a lesser extent near-poor women systematically lagged non-poor urban women in both the quantity and quality of maternal health services received in connection with recent pregnancies. Significant maternal health service gains were observed for all urban women during the study reference period, with gains for poor and near poor urban women exceeding those for non-poor on several indicators. While the deployment of pro-poor interventions such as the national social health insurance scheme is likely to have contributed to these results, evidence suggesting that the scheme may not be influencing consumer health-seeking behaviors as had been anticipated along with continued limitations in public health sector supply-side readiness resulting in service quality issues suggest that more will have to be done.

When the measurement-type Current Transformer (CT) is used for protection schemes, this condition causes problems related to the operation of the protection relay. This performance can provide the right output to be captured by the relay when using the CT type of protection system, and measurement CT will be appropriately used as a measurement instrument. When the primary current is greater, the denser the flux flowing in the iron core, and when a certain primary current value is reached, the iron core is unable to accommodate the flux that must be flowed. As a result, the value Es is unable to rise again, so the error ratio begins to rise, and the secondary current output is distorted. This research aims to design a tool that can display the distortion that occurs in the secondary current, and this research will evaluate its impact on the characteristics of the inverse-type overcurrent relay. The research method is R&D (Research & Development) by configuring a prototype analog test table so that saturation occurs on the CT connected to the protection relay. The results of the research Simulation of protection coordination failure due to core saturation can be shown, and the design of core saturation test equipment can be demonstrated. The root cause of core failure can be traced from the disconnection time deviation that occurs at the protection relay. The design of core saturation test equipment can be implemented to display protection failures due to core saturation and show the correlation between the voltage excitation curve and relay disconnection time. Testing CT ratio 30/5 with a burden of 1.5 VA, the operating limit is 183.3% of the primary rated rating, meaning that for CT with a primary rated current of 30 amperes, testing up to 60 amperes shows the results have not occurred core saturation.

Background Periodontitis is a chronic inflammatory disease characterized by progressive damage on the structure of tooth-supporting tissues. The aim of the study is determining the combination photodynamic effect of diode laser 405 nm treatments and the administration of doxycycline 0.1% within 1, 3, 5, and 7 days on a Wistar rat model of periodontitis. Methods Samples were induced with Porphyromonas gingivalis ATCC33277 to allow periodontitis development and were treated with combination of doxycycline and laser diode, then statistical analysis was carried out (One-Way ANOVA test and the post-hoc Duncan test; Kruskal–Wallis test and Mann–Whitney follow-up test for non-parametric data). Samples were divided into five groups, laser exposure used was 405-nm diode laser with energy density of 8 J/cm 2 . The expression level of histomorphometric was calculated by measuring the number of macrophages, lymphocytes, fibroblasts and the distance between the CEJ-AV. Results The results showed that the combination treatment of doxycycline and laser exposure yielded immunomodulatory effects. The expression level of fibroblast and the distance between CEJ-AV bone showed that the combination of doxycycline and laser therapy exerted healing effect in rat models of periodontitis on day 5 and 7. Conclusion The combination of doxycycline 0.1% and diode laser therapy provides a healing effect in rats models of periodontitis.

Background Although efforts to reduce high maternal mortality in countries such as Indonesia tend to focus on addressing health risks among pregnant women, family planning has been shown globally to reduce maternal mortality by reducing both total and higher-risk pregnancies. This article assesses past contributions of family planning to the reduction of maternal mortality in Indonesia and the potential future contribution toward achieving the 2030 SDG maternal mortality goal. Methods The study takes advantage of data from long series of population censuses and large-scale surveys that are available in few other low- and middle-income countries. We use the decomposition method suggested by (Matern Child Health J, 16:456–463, 2012) and regression-based policy simulations to estimate the number of maternal deaths averted during 1970–2017 due to contraceptive use and project potential future contributions to the year 2030. Results It is estimated that between 523,885 and 663,146 maternal deaths were averted from 1970 to 2017 due to contraceptive use, a 37.5–43.1% reduction. If the contraceptive prevalence rate (CPR) were to rise from 63% in 2017 to 70% in 2030 and unmet need for family planning were to fall to from 10 to 7%, an additional 34,621–37,186 maternal deaths would be averted, an 18.9–20.0% reduction. A 2030 CPR of 75% and unmet need for family planning of 5% would result in 51,971–54,536 maternal deaths being averted, a 28.4–29.4% reduction. However, the CPR growth rate would have to nearly double the 2000–2017 rate to reach 70% CPR by 2030 and more than triple to reach 75%. Achieving the most ambitious target would still leave the maternal mortality ratio at 125 in 2030 without corresponding improvements in maternal health services. Conclusions Although substantial reductions in maternal mortality between 1970 and 2017 can be attributed to contraceptive use and further contributions to the year 2030 are probable, smaller contributions are likely due to the already relatively high CPR and the challenges that must be overcome to move the CPR significantly higher. The ability of Indonesia to reach the 2030 SDG maternal mortality target of 70 maternal deaths per 100,000 live births will depend primarily upon health system effectiveness in addressing health risks to women once they are pregnant.

Type of the article: Research Article This study aims to forecast how the relocation of Indonesia’s new capital to East Kalimantan will impact regional economic development, labor market dynamics, and vocational education readiness. Employing an integrated system dynamics and foresight methodology, the study models the interdependencies among economic transformation, industrial shifts, and future workforce requirements. The analysis combines qualitative foresight data, gathered through in-depth interviews and focus group discussions with 66 key stakeholders (16 government and education policymakers, 30 leaders of large industries, and 20 SME representatives), with system modeling to simulate long-term trends and policy impacts. The simulation results indicate a significant structural transition from a resource-based economy to a service-oriented and low-carbon economic model, leading to a sharp projected increase in labor demand across green and digital-intensive sectors. These projections underscore the urgent need for a vocational education system that is more adaptive, technologically relevant, and environmentally aligned. However, anticipated challenges such as persistent skill mismatches, inadequate stakeholder engagement in policy design, and outdated curricula may hinder vocational institutions from effectively responding to emerging labor market demands. This study highlights the strategic importance of modernizing vocational education and establishing stronger collaborative frameworks among government, industry, and educational institutions. By forecasting workforce readiness under multiple development scenarios, the research provides actionable insights to support evidence-based policymaking and the creation of a resilient, future-oriented innovation ecosystem in East Kalimantan. Acknowledgments This research has been funded by the Indonesia Endowment Fund for Education Agency (LPDP) in 2024. We extend our sincere gratitude to the Ministry of Education, Culture, Research, and Technology of the Republic of Indonesia, as well as the Directorate General of Vocational Education through the Directorate of Partnerships and Alignment of the Business and Industrial World (Mitrasdudi), for their valuable support. Furthermore, we would like to express our appreciation to the Regional Government of East Kalimantan Province for their continuous assistance and cooperation.