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Perception of crampedness is an individual's subjective feeling of limited space due to the density of the physical environment. This study aims to determine the effect of perceptions of overcrowding on psychological well-being in flat occupants in Makassar City. The population of this study were residents of the Mariso Flats in Makassar City. The number of research subjects was 158 people who were taken using the accidental sampling technique. The characteristics of the subjects in this study were residents of flats aged 18-40 years. The data analysis method used in this study is simple linear regression analysis. The results of the data analysis that has been carried out show that there is an influence of perceptions of overcrowding on psychological well-being of the residents of flats in Makassar City (p=0.000 R square -0.130). The effective contribution of the distress variable to the psychological well-being variable is 13.0%, which is shown from the value of R square = 0.130.

Ethics relates to good living habits, both in a person and in a society or community group. This means that ethics are related to values, good ways of life, good rules of life, and all habits that are adopted and passed from one person to another or from one generation to another. Islamic Bank Services In Indonesia (BPRS) formulates ethical Islamic work ethics  which in the form of its main values is an elaboration of ethical values applied by all BPRS employees (employees). This study conducted a qualitative mapping  of research articles on ethical behavior in service from 2019 to 2023, focusing on the year of publication, theories used and research variables. A total  of 100 articles from accredited journals on Google Scholar were included in the analysis. In this study assisted by two software including publish or perish software and VOSviewer. The theory of ethical behavior in Islamic banking services  is found to be a theory  that  is considered to be used quite often, but the relationship between the ethical behavior of servants in Islamic banks and fukus is that BPRS is still very rare. Software publish or perish and VOSviewer. Publish or perish software for data collection while VOSviewer software to get 3 outputs that will be analyzed with a bibliometric approach including Network Visualization, Overlay Visualization and Density Visualization. From the results of the analysis of the three outputs, it can be concluded that the theory or topic of ethical behavior and Islamic banking was found to be a theory that has been used since 2019  and is quite often used, but the relationship of the theory of Islamic bangking ethical behavior is not found related, or you could say the theory of Islamic bangking ethical behavior theory has never been made as a research topic in the span of 2019 until 2023.  

The total population of Deli Serdang, based on the results of the 2020 Population Census, is 1,931,441 people, including people with irregular residence, and is the second largest in North Sumatra after Medan City. While the population growth rate from 2020-2021, based on the last SP 2020 figure, is 0.69 percent per year, the total population of Deli Serdang in 2021 is estimated at 1,941,374 people with a population density of 777 people per Km2.

Increasing population density is now affecting all aspects. Spatial planning that is not conducive affects the level of community welfare. Reduced land makes people unable to grow crops to the fullest. Modern agriculture can be implemented in a simple way, namely starting from the family environment by utilizing narrow land or through the use of land that is not large. Utilization of land that is not large is by using a verticultural cropping system which can overcome the narrowness of the land. The activities carried out were at KWT Dewi Sartika, to be precise, in the Sentul Village, Blitar City. The activities carried out are counseling and mentoring regarding the incorporation and application of verticultural methods in dealing with less extensive land. The implementation of this activity aims to educate the public regarding the use of narrow land for conventional, organic and commercial farming. This activities also aims to update the vertical system that has been carried out by the community.

The density of charters and the large number of people living around the banks of the Teluk Angke area in RT Teluk Gong. 05/08 Kelurahan Pejagalan resulted in an increase in the amount of waste of various types, ranging from food waste, plastic waste, fruit peel waste, used cans, etc. The purpose of this community service activity is to help the community in dealing with environmental-based diseases. The socialization method was carried out on health promotion in the abdimas scientific forum activities with the theme "Media Posters for Health Promotion Disposing of Good and Correct Garbage for Environment-Based Disease Control" using poster media for ± 15 minutes followed by questions and answers, posting posters in each resident's trash can, monitoring and evaluation. The results obtained from this study were changes in the behavior of participants about how to dispose of waste properly and correctly, thus increasing public awareness of how important it is if we dispose of waste properly and correctly so that we can control environmental-based diseases.

Making this soap aims to provide an explanation for making solid soap made from lemon essential oil as an effort to improve community skills and can be applied by the community in the future as a business. Soap making is done by heating coconut oil at a temperature of 800C. Mix 30% NaOH with heated oil until it becomes homogeneous, stirring continuously until the saponification process is perfect. Add the stearic acid which has been dissolved in the alcohol and stir until smooth, add the white sugar and stir again, add the glycerin while stirring, add the foam booster while continuing to stir until the mixture becomes homogeneous. Add coloring and fragrance, namely lemon oil, which is carried out at 400C. Pour the mixture into the mold and let it sit for 15-30 minutes. The soap has hardened and can be removed from the mold. The tests performed were preference, allergy, aroma, color, froth and density tests. The result shows that solid soap has been successfully made, but still requires some further refinement regarding the density and transparency of the soap. With the procedures for making soap and the analytical test that the author described above, new knowledge and skills can be used for the community as well as solid soap business opportunities

Analisis Kode Statis (Static Code Analysis) masuk ke dalam metode white box testing yang digunakan pada pengembangan aplikasi. Analisis ini dilakukan dengan cara mengevaluasi source code untuk mendeteksi pelanggaran kode apa saja yang terdapat dalam project aplikasi open source To Do List berbasis website menggunakan Laravel dan Vue.js. Proses analisis kode statis bertujuan memberikan pemahaman serta memastikan basic code pada project telah memenuhi standarisasi pengkodean yang telah ditetapkan. Teknik pengujian source code dilakukan melewati proses scanning pada project dengan standarisasi pengkodean yang telah ditetapkan dan diatur dalam Quality Gate SonarQube sebagai acuan untuk seberapa tinggi kualitas kode yang harus dilalui. Hasil analisis yang diperoleh melalui tool SonarQube menunjukkan pelanggaran kode yang ditemukan secara keseluruhan pada project To Do List dengan beberapa kategori issues, yaitu 4 bug, 2 security hotspots, 31 code smell, dan 117 duplicate lines of code dengan density sebesar 18,3% yang membutuhkan total waktu estimasi pengerjaan untuk perbaikan pelanggaran kode sebanyak 2 jam 35 menit.

PT Kusuma Mulia Plasindo Infitex is a company engaged in the manufacturing sector that produces polypropylene and HD (Hight density Polyethylene) plastic products. The problem that occurred at PT Kusuma Mulia Plasindo Infitex was that the number of defective products on HD plastic products of 98,327 kg contained 4,194 kg of defective products. The purpose of this study is to determine the factors that cause defects and suggestions for improvements to minimize defective products. This study uses the six sigma method which is useful for finding the root causes of problems that are adjusted to the characteristics of the data they have. The 5 stages of six sigma are DMAIC(define, measure, analyze, improve, control) and kaizen is the Five M-Checklist. So from the results of data processing, the value is obtained in the form of DPMO 8393.048 and a sigma value of 2.49. Proposed improvements include providing training in plastic welding, providing additional 5-10 minute breaks and supervision while working. Perform routine machine maintenance every month and cleaning every day. Adding ventilation and blowers in the production room. Carry out the production process according to the existing SOP at the company, especially in mixing materials according to the SOP for raw materials that have been made by the company.

Mortar is a mixture of materials composed of fine aggregate (sand), adhesives such as (clay, lime, portlaand cement) and water with a certain composition. Mortar can be affected by several specification factors such as density, mortar age, type of bonding material, and aggregate properties. In this study using coconut fiber ash as an added material in making mortar which has a function as an enhancer of compressive strength value in mortar. In coconut fiber ash, it has an important chemical compound for mortar, namely silica compounds which function as the main element to increase the compressive strength value of mortar. The purpose of the study was to determine the effect of adding coconut fiber ash material on the compressive strength of mortar with a percentage of 0%, 2.5%, 5%, 7.5%, 10%. From the results of the research conducted, a compressive strength value of 253 Mpa was obtained at a percentage of 10% of 7 days old and 253 Mpa at a percentage of 2.5% of 7 days old.

The concept of the smart city has emerged as a strategic response to rapid urbanization, increasing population density, and escalating environmental degradation. It is designed to create more efficient urban management through the integration of information and communication technologies, with the primary goal of enhancing public services, optimizing resource use, and improving citizens’ quality of life. One of its most significant promises is its potential to mitigate ecological challenges, particularly in monitoring and reducing air pollution levels. This study aims to analyze the impact of smart city implementation on urban ecology and quality of life, focusing on air quality as a key indicator. A quantitative comparative approach was applied, using both primary data from air quality measurements PM2.5, CO₂, NO₂, and AQI and secondary data from government reports, environmental agencies, and academic publications. The research was conducted in five major Asian cities recognized for adopting smart city initiatives. The results reveal varied outcomes: Tokyo and Kuala Lumpur demonstrated substantial improvements in air quality and livability, while Beijing and New Delhi continued to struggle with severe pollution. Jakarta showed partial progress, though improvements remain limited. These findings indicate that while technology is critical, it alone does not ensure ecological sustainability. Effective governance, public participation, and context-based strategies are equally crucial. This study highlights the need for smart city policies to prioritize ecological resilience and human well-being as central elements of sustainable urban development.

Efforts to increase income, provide employment, contribute to the availability of animal protein and increase production activities are part of food security in the aquaculture sector. Based on data reported from the DGT KKP Statistics, (2021) aquaculture can increase production activities, where in 2020 the third quarter of fish farming production reached 11.5 million tons and increased to 12.25 million tons in 2021 in the third quarter.  Alternative techniques that can be done as an effort to increase fish farming production results are optimizing the use of biofloc system technology (Pramono et al., 2018; Faridah et al., 2019 and Permana et al., 2021). This biofloc system is a union of living organic substances into the form of blobs, where this biofloc is composed of the word bio which means life while floc means blob. For example, in tilapia farming, to increase production results so that they can ... Meeting market demand can implement a biofloc system. Tilapia is classified as a type of freshwater fish that is in great demand in the market. The advantages of implementing a biofloc system in tilapia farming are environmentally friendly so that it is easy to carry out advanced cultivation, there is efficiency in water utilization, short maintenance period, and maximizing stocking density. In addition to the advantages, there are also obstacles faced, fish farming with a biofloc system such as lack of understanding of fish farming with the biofloc method, directly providing feed without paying attention and lack of water quality control. Furthermore, the research conducted implemented the observational descriptive method. 

Waste oil treatment through the distillation method with the addition of sulfuric acid and sodium hydroxide media was successfully carried out. The purpose of this study was to obtain quality diesel fuel, study the effect of the concentration of chemical media used, and determine the effectiveness of using spritus substitute fuel. Waste oil treatment is carried out using a distillation method that involves the process of precipitation, filtration and addition of acid and alkaline media. After going through the processing process, the resulting products are analyzed and tested physically and chemically such as density, specific gravity, flash point, fire point, calorific value, and kinematic viscosity. The results of physical test research and parameters were obtained at optimum conditions of use using H2SO4 and NaOH concentrations of 6%. Physical tests obtained brownish-yellow fuel while parameter tests on density tests were 817 km/m3, specific gravity was 0.801, flash point and fire point were 61°C and 72°C,while kinematic viscosity was 4.99 m2/s. The results of this test show that the fuel obtained tends to have diesel quality, so that the fuel has the potential and effectiveness to be used as a substitute for spritus in patching motorcycle tires

Helminthiasis can be diagnosed by finding helminth eggs on a stool laboratory examination. Stool examination consists of qualitative and quantitative examination. One of the methods used in qualitative examination is the sedimentation method, this method utilizes the force of gravity by using a solution of lower density so that parasites can settle under the solution with the help of a centrifuge. One of the factors that affect centrifugation is time and speed. This study aims to determine the effect of time and speed of centrifugation on the profile of helminths eggs. The research was conducted at the meids laboratory of the Catholic Polytechnic Mangunwijaya Semarang. This type of research is experimental. Positive samples of Soil Transmitted Helminths (STH) eggs were centrifuged with time variations of 10 minutes, 5 minutes and 3 minutes at speeds of 3000 rpm, 2000 rpm and 1500 rpm. The data were then analyzed using Shapiro-wilk and Paired Samples T-test. Statistic test shows a difference of STH eggs profile between 3000 rpm 10 minutes and 2000 rpm 5 & 10 minutes, and 3000 rpm 3 & 5 minutes, between 2000 rpm 3 minutes and 1500 rpm 5 minutes, between 2000 rpm 10 minutes and 1500 rpm 5 minutes dan 200 rpm 3 minutes, between 3000 rpm 5 minutes and 2000 rpm 3 minutes (p < 0.05). There is an effect of variations in time and speed of centrifugation on the profile of STH eggs.

Soil in a construction must have a high soil density value, a high soil density value affects the carrying capacity of the soil in carrying the load on it. dynamic cone penetration test / DCP (Dynamic Cone Penetrometer) is often performed. To get the CBR value, the DCP test results are correlated with a DCP-CBR Value Correlation formula. However, to anticipate deficiencies in the CBR-DCP correlation test, it is necessary to correct it with the DCP-CBR Correlation Formula from the Ministry of Public Works and Housing which is generally accepted for all regions of Indonesia. This research was conducted by conducting DCP tests at 8 points in the field and then taking soil samples which would then be taken to the laboratory to test the physical properties of the soil. After all the data has been obtained, then analyze and formulate the DCP – CBR correlation formula and compare it with the correlation formula. After doing the research, it is found that the DCP – CBR correlation formula model studied has the formula Log CBR = 3.2322 – 1.512 Log DCP, where this formula is generally in accordance with the DCP – CBR correlation formula from the Ministry of Public Works because of the position of the curve. slightly above the curve of the DCP-CBR Correlation formula of the Ministry of PUPR

A level road intersection is a meeting place for vehicle flows from various directions both towards the intersection and leaving the intersection, so that at the intersection there is the potential for vehicle conflicts to occur which are at the same time at the same point. This causes the vehicle to reduce speed. Reducing vehicle speed at intersections results in the potential for queues and delays. Evaluation of the performance of the intersection needs to be done to find out the current performance of the intersection, so that anticipatory steps can be taken so that the performance of the intersection can be maintained and maintained in good condition. In this study, an analysis of intersection performance will be carried out using the Vissim software. In this study, an assessment of the unsignalized intersection of Pasar Butun, Balikpapan City was carried out. The data needed for input into the model include traffic flow data at rush hour or peak density hours, intersection geometry data. The output or results generated by the model are intersection performance information in the form of queue length and delay time parameters  Degree of Saturation (DS) for the existing condition is 1.70 and for the next 5 years it is 2.20. Parameters of queue length and time delay in existing conditions are 33.0 m and 3.65 sec/pcu and for the next 5 years projection are 87 m and delay time is 187.s/pcu

Acute Respiratory Infections (ARI) are upper and lower respiratory infections caused by infection or bacteria. According to WHO (2018), 40%-60% of the world's under-five population experience ARI. ARI occurs due to many factors, including LBW, Nutritional Status, Immunization Status, and Residential Density. This study aimed to determine whether there was a relationship between these factors and the incidence of ARI at the Batua Makassar Health Center. The design of this study used an analytical survey with a cross-sectional design. The research sample consisted of 90 children under five with a simple random sampling technique, and the measuring instruments used were questionnaires and KMS. Data analysis using chi-square test. The results of the study using the chi-square test obtained a value of P = 0.049 (LBW), P = 0.013 (nutritional status), P = 0.000 (research status), P = 0.001 (density of residence) because the -value = <0.05 then Ha is accepted, it means that there is a relationship of several factors to the incidence of ARI in toddlers at the Batua Makassar Health Center. From the results of this study, it can be said that the condition of LBW, nutritional status, immunization status, and density of residence has a significant relationship. Families are expected to add information by actively participating in activities carried out by health workers on reducing factors that can cause ARI in toddlers.

The use of sea sand in construction work from an economic point of view does have advantages. One of them is increasing the income of the sea sand collectors who are spread throughout the area in Fakfak Regency. In addition, the potential availability of sea sand is quite large and is able to accommodate all types of concrete construction work in this area. This study aims to determine and analyze the use of sea sand in the AC-WC mixture of course by doing the Marshall test. This study uses variations in asphalt content of 5.0%, 5.5%, 6.0%, 6.5% and 7.0%, this study was carried out using Marshall testing in accordance with the general specifications of Bina Marga 2018. The results of the research conducted showed a relationship asphalt content and Marshall parameters such as stability value, VMA, density, MQ at an asphalt content of 5.0%-7.0%, meet the specifications of 1932 kg, 19.84%, 2.26 gr/cm3 and 1031 kg/mm. Values of VIM, VFWA and flow at 5.5% asphalt content are known to not meet the mix spasticity, namely 8.07%, 59.71% and 1.67 mm. Based on the Marshall parameter data, the Optimum Asphalt Content value is 6.5%.

The implementation of the 2020 Pilkada in Gunungpati District as a whole has improved in terms of the quality of its implementation. This is the result of the cooperation of all competent parties at the sub-district and village levels. This study aims to analyze the collaboration of the Supervisory Committee for the Election of Governors and Deputy Governors in 2020, Gunungpati District and to understand in depth the flow of information using Social Network Analysis (SNA). The results showed that the overall density of the supervisory committee network was 0.53 or 53%, so the characteristics of the network of members of the Panwaslu Kec.Gunungpati network were in the high category. Panwaslu members with the initials DAP, RV, WPU and M are the most dominant members of the Panwaslu with values of Centrality, Closeness and Betweness Centrality in the network.  

Runway or runway is an area used by aircraft to take off. The length of the runway depends on the size of the aircraft served. Runway has a pavement structure that can withstand the weight of an aircraft when it wants to fly. This study discusses the damage to the surface structure of the Threshold 07 and Threshold 25 runways at the Sultan Aji Muhammad Sulaiman (SAMS) runway in Sepinggan Balikpapan. Damage to the pavement surface often results from significant heat temperatures from the aircraft when taking off. Visual observations show that there are problems with the Threshold 07 and Threshold 25 pavement surfaces, the damage that occurs is the change in the surface shape of some segments, where the surface deformation eleves are up to 40 mm. Test results from Coredrill samples show that there are internal problems in the asphalt mixture, namely high asphalt content and low density value. By looking at the conditions above, there are problems caused by external and internal factors of the existing pavement, especially the surface conditions namely Threshold which is a location where the load is in MTOW conditions and the aircraft is moving slowly as well as high temperatures (environment and pavement)

ARI is an acute infection that attacks the respiratory tract, namely the organs that start from the nose to the alveoli along with the adnexa. In general, the risk factors for ARI are physical environmental factors, host factors, agent factors and social environmental factors, physical environmental factors, namely indoor air pollution. , the physical condition of the house. The purpose of this research is to find out how the correlation of knowledge and the environment with the incidence of ARI in the community in Nania Village, Ambon City. The research design used in this research is descriptive analytic research with a cross sectional approach. This research was carried out in Nania Village, Ambon City in July-August 2020. The research sample used was 60 people. The sampling method in this study was simple random sampling. From the research results, it was found that there was a relationship between the incidence of ARI and room occupancy density, a value of 0.000 was obtained, there was a relationship with the type of floor, a value of 0.000 was obtained, there was a relationship with the type of wall, a value of 0.000 was obtained, there was a relationship with the ceiling of the house, a value of 0.000 was obtained, there is a lighting relationship obtained a value of 0.000. So it can be concluded that there is a significant relationship with the incidence of ARI in the Nania village community, Ambon city.