bluuebunny/crossref_metadata_2025_split huggingface dataset:
Utilization of Igneous Rock as Coarse Aggregate in Asphalt Concrete Binder Course Mixture
Authors: Rangan P R , Tumpu M , Mansyur  
Published: January 2023

Abstract
Enrekang Regency, South Sulawesi Province, is an area that has a source of material in the form of river aggregate which was classified as igneous rock in Mata Allo River. However, the use of river stone so far has only been limited as to building materials and has not been used as coarse aggregate in asphalt mixtures. The use of river stone which had been underutilized is also based on the fact that there is no research on this aggregate. This study aims to determine the feasibility of Mata Allo River aggregate that can be used as coarse aggregate in the asphalt concrete binder course (AC-BC) mixture against the Marshall test. This research was conducted by testing the characteristics of coarse aggregate based on the standards of Highways, Indonesia. The composition of the AC-BC mixture as a result of aggregate gradation were 50.00% of coarse aggregate, 45.15% of fine aggregate and 5.85% of filler, respectively. AC-BC mixture were produced using petroleum bitumen of 60/70 grade penetration at variations in asphalt content of 4.0%, 4.5%, 5.0%, 5.5%, and 6.0%. Based on the results of the study, the Mata Allo River Aggregate which is classified as igneous rock is suitable for use as road material with flexible pavement construction for the AC-BC mixture resulting from laboratory testing, where the Marshall characteristic test results for the mixture meet the specifications of Bina Marga, Indonesia.
Modeling of Flood Prone Areas In The Kelara Watershed
Authors: Mustamin M R , Maricar F , Karamma R 
Published: January 2023

Abstract
One of the efforts to minimize the negative impacts of flooding in the Kelara Watershed is to make model flood-prone areas that can be used as an initial reference for flood disaster mitigation. The analytical method used is hydraulic analysis using 2D HECRAS numerical simulations to determine areas affected by flooding based on flood discharge at a return period of 2 - 100 years. Based on the simulation results, it is found that the discovery area for Q2 is 331.42 Ha, Q5 is 547.21 Ha, Q10 is 798.76 Ha, Q20 is 925.11 Ha, Q25 is 925.79 Ha, Q50 is 1048.48 Ha, and Q100 is 1146.71 Ha. From the results of the flood depth verification, it was also known that the flood that occurred on January 22, 2019 was approaching the 100 year return period flood and June 12, 2020, was approaching the 20 year return period flood. So from the results of mapping and field verification, it is known that the 4 affected districts are Binamu District, Kelara District, Turatea District, and Biringbulu District with the location of the worst flooding occurred in Sapanang Village, Binamu District.
Equipment Maintenance Effect on Energy Losses Reduction at Medium Voltage Distribution Network
Authors: Yusran  , Manjang S , Mukhlisah  , Suhaimah  
Published: January 2023

Abstract
The energy loss is one of primary problems at medium voltage distribution network. The declining quality of distribution network equipment is main factor of energy losses. The equipment maintenance has a significant correlation with energy losses reduction. This research discussed the effect of equipment maintenance on energy losses reduction at medium voltage distribution network. The research object was a feeder of 20 kV medium voltage overhead line at Bontoala Substation, Makassar. The research method was the quantitative calculation of energy losses in a month based on empirical formulas, with and without maintenance condition. The calculation was performed on three distribution network equipment: connector, transformer, and insulators. Based on the calculation results, the total energy losses without maintenance were 118,373.429 kWh. With maintenance, the value of losses can be reduced to 36,960.339 kWh or equal with 68.776% reduction. The research result shows the significant impact on equipment maintenance to distribution network energy losses.
Spatial Territoriality Characteristics in a Waterfront Slum Settlement (Case Study: Karabba Village, Makassar)
Authors: Asmal I , Gani P J A , Ridwan  , Amri N , Walenna M A 
Published: January 2023

Abstract
Humans use territorial behavior to meet their privacy needs while carrying out their activities. The use of spatial in slums, particularly those on the water, is extremely limited, which indirectly influences their behavior of human activities in creating their outdoor spatial as territorial space. Based on field observations, this study aims to analyze the spatial territoriality of slum settlements on the water in terms of form and characteristics, as well as gender activities. The method used is rationalistic research, with the approach being to see the truth not only from empirical data but also from interviews as part of the cognitive construction. The results show that the territorial space formed above the air is strongly influenced by the activities that occur above it, as well as the boundaries of the physical territory that are formed intentionally or unintentionally and are motivated by social and kinship characteristics that emerge as a result of the time of the activities that occur. Women’s activities are still strongly influenced by personal distance and distance from home, as well as the nature of kinship that occurs. Men are more active outside the home because they have little space for social activities, so they carry out their activities on the road. Because of their inquisitive nature, children are looking for a place for wide activity, a shady place, and other places that are not used for activities.
Land capability and carrying capacity analysis against land use change in the Motaain Border Region (Indonesia-Timor Leste)
Authors: Manaf M , Irfan U R , de Fretes R A 
Published: January 2023

Abstract
Changes in land use in the border regions of the Motaain state (Indonesia-Timor Leste) are caused by population growth and a variety of activities of the population. Thus, changes in land use that are not controlled affect the ability and carrying capacity of the land. Moreover, the research objective is to assess the characteristics of the region from the physical aspects of the environment to spatial changes, as a reference for controlling spatial use. The analytical methods are used population density and activity density (Kernel density); analysis of activity patterns (cluster and outlier analysis and spatial auto-correlation Moran’s I); class analysis of land capability and carrying capacity (overlay); and quantitative statistical quantitative analysis. The results of the analysis explain that from the year 2013 until 2017 the border area of the Motaain state experienced population growth and activities, these affected spatial patterns that change in land use from non-developed land to build-up land. It is also explained that overlay analysis results are more dominant land capability classes are very low as well as the carrying capacity to land that is predominantly a potential and protected development area. The difference in capability and carrying capacity to land is a product of social activities that cannot be controlled.
Prospect Analysis of Geosite at Bukit Biru Area in Kutai Kartanegara, East Kalimantan
Authors: Heriyanto  , Shodiqin M A , Sasmito K , Putri R I 
Published: January 2023

Abstract
Indonesia is known to the world as the “Emerald of the Equator”, because of its abundant natural wealth that includes varieties of biological and non-biological resources (geological resources) which are widely spread throughout the archipelago, both in land and water. The Bukit Biru area is known as a fertile area and holds a variety of potential, either from geodiversity, biodiversity and also cultural diversity. Based on those matters, it has the potential to become one of the areas for geotourism prospect location and make it a new creative geotourism area in Indonesia. This area has a geological condition that is dominated by structural landscapes and fluvial plains composed of Medium Sandstone units to very fine sandstone units and alluvial deposits. The research method used is a quantitative assessment of geosite and geomorphosite assessment based on the parameters of a scientific approach, educational value, economic value, conservation value and additional value. The research is divided into 3 stages, namely pre-field, field and post-field. Based on the research, there are 3 geosites, namely Bukit Biru Waterfall, Bukit Biru Summit and Taman Arum. The results of the Geosite and Geomorphosite Analysis of the Bukit Biru area are Bukit Biru Waterfall with a value of 73.3%, Bukit Biru Summit with a value of 60%, and Taman Arum with a value of 57.5%. Improvement of the infrastructure for each geosite needs an increase to create a comfortable tourist attraction as well as to improve the economy of the people in Bukit Biru area.
Flood Analysis of Bila River with Mathematical Models
Authors: Handayani R , Lopa RT , Karamma R 
Published: January 2023

Abstract
The Bila River is one of the rivers in South Sulawesi, especially in Sidrap Regency which almost every year experience river overflows that cause flooding in the area around the river and cause losses to the community trying to analyze the flood of the river Bila with a mathematical model. The method used is to perform hydrological calculations with the help of the HEC-HMS application and simulation of flood discharge with the help of the HEC-RAS application. The results obtained are based on the results of running the HEC-RAS application with a design flood discharge of Q20 yr = 1518.10 m3/s. Recommendations for handling the flood of the Bila. River in the short, medium, and long, namely the addition of top embankments at the point of overflow, installation of control gates on tributaries and construction of retention ponds. Short and medium term amounted to 812.57 Ha and for long term handling amounted to 829.26 Ha.
Community Capacity and Resilience in Facing The Threat of Fire Disaster (Case Study: Barrang Lompo Island, Makassar City)
Authors: Pattimahu Z , Rasyid A R , Sastrawati I , Sutopo Y K D 
Published: January 2023

Abstract
This research is based on the high intensity of fires in dense residential areas of Makassar City, which is caused by high vulnerability to fire and low community capacity and resilience. Barrang Lompo Island is an area with a fairly high population and density of buildings. So that the potential of fires is also likely to occur on Barrang Lompo. This study aimed to identify the level of community capacity and resilience using a community capital framework approach. The capacity stage analysis is carried out by converting qualitative data into a capacity assessment scale. Then, using expert opinion to assess the value of each variable using AHP method. Furthermore, classifying the level of Community capacity is classified using the scoring method. The results show that community capacity are classified as moderate to high, with a score of 1.89-2.31. In general, the capacity and resilience of fire, including individual capabilities, social capital, local culture, natural and physical capital, are moderate to high. Meanwhile, policy and financial aspects are quite low. In conclusion, to improve community resilience, it is recommended to improve individual preparedness through education, create a small island fire management policy, provide emergency transport and improve the local economy.
Geoelectrical resistivity and geochemical method for groundwater investigation in the coastal sediment
Authors: Azis A , Irfan U R , Alimuddin I 
Published: January 2023

Abstract
This research presents new investigations on the identification and mapping of heavy metals in aquifer systems using geoelectrical methods, water samples, and geochemical analyses. The subsurface was investigated using a total of three geoelectrical survey lines in the Wenner Schlumberger configuration. Six samples—three from bore wells, two from rivers, and one from the sea—were collected for additional laboratory examination in order to observe the quality of the water samples and variations in hadrochemical water samples in the research area. Soil samples collected from three different places were geochemically analysed. Cd concentration (0.94-2.42 mg/kg) was found to be higher in the northern portion of the study site, and Cr concentration (4.39-72.98 mg/kg), Ni concentration (12.11-47.69 mg/kg), and Co concentration (7,19-12,86) were found to be higher in the southern section. While Cd, Cr, Ni, and Co distribution of heavy metals are quite high in the northern and southern areas of Galesong beach, they are relatively low in the middle. A geochemical study of soil samples reveals that Cd and Cr concentrations are significantly high in the resistivity zone (<20 Ωm). The environmental resistivity value is low from the center zone to the northwest. The heavy metal zone in the aquifer system can be simply represented by the geoelectrical resistivity distribution presented in the form of a depth section, even though the resistivity value of more than 40 Ωm can be regarded as an aquifer zone.
Control of Space Utilization in Urban Coastal Area, Case Study in Sapolohe Village, Bontobahari District, Bulukumba Regency
Authors: Dewi N , Akil A , Sutomo S T 
Published: January 2023

Abstract
The establishment of the Bontobahari Sub-district as the center of a coastal tourism area, especially the Bira Coastal area, has an impact on the increasing number of traffic activities and infrastucture development in several areas. One of them is the coastal area in Sapolohe Village. The objective of this research is to identify the forms of discrepancies in space utilization, to determine the factors that cause the discrepancies in space utilization, and to identify the management of control over the space utilization. This research was conducted from August to October 2020 in Sapolohe Village, Bontobahari District, Bulukumba Regency. The data were obtained from literature studies, field observations, questionnaires, interviews, visual materials or documentations, and map overlays. The analysis was carried out through map overlay or spatial analysis, influence factors analysis through statistical analysis in the form of multiple linear regression tests, and descriptive analysis. The results of the study explain that there are various forms of discrepancies in the use of space in the research location, where there are 288 buildings that breach the road boundary line, 564 buildings that breach the coastal boundary line, and 4 buildings that violate the existing IMB (Building Construction Permit) function. The occurrence of discrepancies in space utilization in the research location is influenced by the results of planning that is not properly socialized, the use of space that is not in accordance with the results of the planning, and the lack of control over space utilization by the local government. Meanwhile, the management of controlling the use of space in the coastal area of Sapolohe Village is related to planning, space utilization and control of space utilization.
The Effectiveness of Clean Water Services of PAMSIMAS Program in Marioriwawo District
Authors: Ulfah  , Selintung M , Bakri B 
Published: January 2023

Abstract
Community-based drinking water and sanitation (PAMSIMAS) program is a government program that aims to meet the community’s drinking water needs. The implementation of the PAMSIMAS program in Marioriwawo District needs to be evaluated the effectiveness of its services to the community and analyze ways to improve service quality. Data was collected by distributing questionnaires to 50 respondents in five villages and then processed by using the SPSS application. The model for the effectiveness of the clean water service of PAMSIMAS in Marioriwawo District is Y= 0.534 + 0.133 X1 + 0.020 X2 + 0.024 X3 + 0.203 X4 + 0.173 X5 where X1 is the quality variable, X2 is the quantity variable, X3 is the continuity variable, X4 is the ability to pay contribution variable, and X5 is the institutional variable. Correlation coefficient (R) is 0.780. The average of clean water service of PAMSIMAS in Marioriwawo District is 2.83 which is categorized as effective. Improving clean water services for PAMSIMAS in Marioriwawo District can be done by checking water quality at least once every six months, monitoring pipelines regularly, applying contribution rates based on water usage and applying sanctions for customers who break the rules.
Mineralogical Transformation and Mass Balance Model at a Nickel Laterite Profile in Malili District, South Sulawesi, Indonesia
Authors: Fahrisyah Reifan , Tonggiroh Adi , Sufriadin  
Published: January 2023

Abstract
The purpose of this study is to determine the mineralogy transformation and mass balance model to understand the mobility of laterite elements using Microscopy, X-Ray Diffraction (XRD) and X-Ray Fluorescence (XRF). The bedrock of the profile is a serpentinized peridotite consisting mainly of lizardite with minor magnetite. The saprolite zone of profile is dominated by the mineral lizardite, while in the limonite zone due to the perfect weathering process, the lizardite mineral has already transforms into goethite. The results of mass balance calculation analysis using Ti as the immobile element showed that Mg and Si were reduced along all layers of profile. Meanwhile, Fe, Al, Mn, and Cr increased towards the upper zone of the laterite nickel profile. Meanwhile, Ni was concentrated in the saprolite zone with an addition of ~386.42%.
The Effect Micro Climate on The Flowering Phenology of Forest Clove Plants (Zyzygium obtusifolium L)
Authors: Kamsurya M Y , Ala A , Musa Y , Rafiuddin  
Published: January 2023

Abstract
Microclimate is one of the environmental factors that affect the growth, flowering and quality of clove flower production, including forest clove plants. This study aims to explain the effect of microclimate on the flowering phenology of forest clove plants and the length of the flowering phenoplast. The research lasted for 17 months, starting from January 2020 - May 2021. The field research was carried out on the island of Ambon, Maluku. The sampling location was determined using the purposive method. Measurement of temperature and relative humidity using a thermohydrometer, solar intensity was measured using a lux meter. Data analysis used principal component regression. The results showed that the length of the flowering phenology was 167.6 days. Microclimate parameters affect the flowering phenology of forest clove plants, R-square 0.93 and the correlation is very strong (R 0.95). Air temperature and intensity of sunlight, both between stands and below stands have a negative effect, meaning that with the influence of these three variables the flowering phenology takes place earlier. On the other hand, with the air humidity variable the effect is positive, meaning that the flowering phenology will be delayed. Air temperature is the variable that has the greatest influence on the flowering phenology of forest clove plants.
Mineralogy and texture of the iron ore deposits in Tanjung and Pake, Bontocani, South Sulawesi, Indonesia
Authors: Bakri H , Imran A M , Maulana A , Irfan U R 
Published: January 2023

Abstract
Iron ore deposits in the Bontocani area are scattered in the form of boulders around the contact zone between granodiorite and limestone, which indicates the skarn type. The study of mineralogy, particularly Fe-bearing minerals in outcrops in the Tanjung and Pake areas, is the goal of this research. The method chosen is fieldwork for detailed analysis of characteristics and relationships between granodiorite intrusions and limestones, as well as representative rock sampling. Furthermore, mineralogy analysis in the laboratory using ore petrography and XRD (X-Ray Diffraction) methods. The iron-bearing minerals found at both of their locations consisted of oxides namely magnetic, hematite, and ilmenite; hydroxide minerals namely goethite; and siderite of the carbonate group. In the Tanjung area as well-found sulfide minerals, namely pyrite, chalcopyrite, covellite, and sphalerite; chromite and manganese of the oxide-hydroxide group; and gangue minerals consisting of calcite, quartz, albite, diopside, hedenbergite, danalite, andradite, and magnesite. Meanwhile, in Pake, the sulfide minerals found are alabandite; oxide minerals namely manganese and pyrolusite; azurite from the hydroxide group; and gangue minerals including calcite, quartz, magnesite, chlorite, andradite. Based on the mineral texture of the ore from mineragraphic analysis, there are textures in the form of open space-filling, replacement, intergrowth, and granular.
The Capability of Pekanbaru City Government to Manage Waste Transportation for the Period of January-June 2021
Authors: Adlin A , Yusri A , Harto S , Erman E , Isril I , Azwar W 
Published: January 2023

Abstract
This research was conducted to describe the capability of the Pekanbaru city government to manage waste in January-June 2021. The city government’s capability was measured by six indicators: institutions, human resources, policies, financial resources, technical capabilities, and leadership. Quantitative data was collected by sending a questionnaire to 101 respondents who are divided into 3 categories, namely: environmental scholars, environmental activists, and others. The data was processed and presented in the form of bar charts and pie charts. This study found that the weakest aspects of the government’s ability were in terms of technical management and leadership, followed by financial resources, policies, human resources, and institutions.
Climate Change and Food Insecurities: The Importance of Food Loss and Waste Reduction in Indonesia
Authors: Munir A , Fadhilah  
Published: January 2023

Abstract
Rapid increasing population of Indonesia poses a future threat to the food supply for the national demand. Furthermore, global climate change is putting a strain on the food supply chain. Droughts, floods, landslides, and pest/disease attacks all have serious consequences for agricultural production, particularly food crops. According to The Economist Intelligence Unit (EIU) data published in 2017, Indonesia ranks second in the world in terms of food loss and waste contribution, chasing only Saudi Arabia. Moreover, according to the Food Sustainability Index in the Economist Intelligence Unit (2017), Indonesian food loss and waste or uneaten totalled 1.3 million tons in a single year. In Indonesia, the most common method of dealing with food waste is dumping or landfilling, which produces methane and other greenhouse gases that contribute to climate change. This research was conducted by employing quick survey for colecting primary data and desk evaluation study for collecting secondary data. Meta analysis was employed in this research. Therefore, to emphasize the importance of reducing food loss and waste in Indonesia to reduce food insecurity caused by climate change, this paper investigates how food loss and waste exacerbates climate change. This paper outlined some scenarios for preventing food loss and waste at all stages of the food chain, including agricultural production, post-harvest handling and storage, distribution and consumption behaviour, and government policy, which can be implemented to begin initiatives to reduce food loss and waste to address the threat of future starvation in Indonesia because of climate change.