Sumatra Region Research Articles

Analysis of Socio-Economic Influences on Household Waste Management in West Sumatra

The purpose of this study was to determine the effect of education, population, and technology on household waste management decisions. This study used multiple linear regression analysis with data obtained from BPS Susenas 2023 data in the West Sumatra region. The findings of this study revealed that the level of education (junior high school, high school, and university), population, and technology, did not have a significant influence on household waste management decisions. Although some variables such as technology and education level have a positive relationship direction towards waste management, the results are not statistically significant, which means they are not strong enough to influence households' decision to manage waste. These results suggest that households' decision to manage waste does not only depend on education, population, or technology use, but may also be influenced by other factors, such as environmental socialization, local policies, availability of waste management facilities, and ingrained habits.

Distribution and habitat suitability of Amorphophallus gigas with MaxEnt modeling in north Sumatra, Indonesia

Amorphophallus gigas is exclusively found in community agroforestry gardens within the northern Sumatra region, Indonesia. This species faces various threats including land conversion and tuber extraction for economic purposes. Despite its unique habitat characteristics, the conservation status remains unrecorded on the IUCN Red List. Effective conservation requires comprehensive data, including distribution and habitat conditions in the field. Therefore, this study aimed to analyze the variables affecting the distribution of A. gigas in northern Sumatra and predict the size of the area with the potential for spread. The variables examined included height, slope, slope direction, climatic conditions, and land cover. Coordinate points were taken directly in the field using GPS, while Maximum Entropy (MaxEnt) modeling was used to predict the suitability of the habitat of the species. MaxEnt modeling of variables affecting the distribution of A. gigas showed that soil type played an important role (contribution 55%), followed by the average monthly temperature range (16%), and altitude (7.9%). The most suitable area was found to be located in the southern part of the province. The results of this research are useful for formulating conservation strategies for A. gigas.

Contributing Factors of Anxiety on Healthcare Workers during COVID-19 Pandemic at Referral Hospital of Sumatra Region in Indonesia

Contributing Factors of Anxiety on Healthcare Workers during COVID-19 Pandemic at Referral Hospital of Sumatra Region in Indonesia

Competence and Discipline in Improving Police Performance: Qualitative Analysis

This study aims to examine the extent to which the competence and work discipline of police members in the Directorate of Vital Object Security of the South Sumatra Regional Police affect their performance in carrying out security duties in the Obvitnas/Obviter area. The research method used in this study is qualitative analysis. Respondents in this study were personnel of the Ditpamobvit of the South Sumatra Regional Police who carried out security duties in the Obvitnas area: Head of Bin Opsnal, Deputy Director of Pamobvit, and Director of Pam Obvit. The location of the study was at the Ditpamobvit of the South Sumatra Regional Police. The instruments used included interviews, observations, and documentation. The steps in this study included collecting data from interviews with personnel who carried out security and the leadership of Ditpamobvit and then describing and presenting the data that had been collected in written form. The results of this study indicate that competence and work discipline greatly influence the improvement of the performance of Ditpamobvit personnel of the South Sumatra Regional Police in carrying out duties in the Obvitnas and Obviter areas.

Genetic Population of Hypothenemus hampei Ferarri (Coleoptera: Scolytinae) from Coffee (Coffea spp.) in Sumatra, Indonesia Using The Cytochrome Oxidase Subunit I Gene

Hypothenemus hampei Ferrari, 1867, is a globally significant pest of coffee (Coffea spp.). Genetic information about H. hampei from various locations, including countries in America, Africa, and Asia (Java, Indonesia), is available. However, the data has yet to be available for Sumatra. This research aims to study the genetic population of H. hampei in coffee plants in Sumatra. In this study, a total of 27 mitochondrial cytochrome oxidase subunit 1 (COI) gene sequences were used to estimate the population genetics of H. hampei in Sumatra, collected from C. arabica, C. canephora, and C. liberica at nine locations. The analysis of the COI gene sequences revealed that they contained 236 base pairs (53.76%) of conserved sites, 203 base pairs (46.24%) of variable sites, 153 base pairs (34.85%) of parsimony sites, and 50 base pairs (11.38%) of informative single sites out of a total of 439 base pairs. Haplotype analysis of the COI gene in H. hampei from Sumatra revealed 10 haplotypes, with a haplotype diversity (h) of 0.649 and nucleotide diversity (π) of 0.004. Genetic differentiation (Fst) of H. hampei is low among populations in Sumatra. Genetic variation within populations is higher, and between populations is low. The genetic distance of 0-0.28%, 27 H. hampei sequences from Sumatra are in the same branch, indicating low genetic variation. This information holds great potential for designing sustainable control strategies to manage this pest species in coffee plants, particularly in the Sumatra region.

Optimalisasi Layanan Anak Melalui Kegiatan Wisata Literasi di Dinas Kearsipan dan Peprustakaan Provinsi Sumatera Barat

The West Sumatra Provincial Archives and Libraries Office, as an institution with responsibility for literacy development in the region, is required to continue to innovate in providing services that suit the needs and characteristics of children's libraries. The main goal is to increase children's interest in reading and introduce them to the world of literacy in a fun way. We also want to create positive experiences so that children are more interested in returning to the library. The literacy tourism program comes as a creative solution that combines elements of education and recreation, creating a fun learning experience for children. This research used a qualitative approach with descriptive methods. Data analysis used an interactive model, which consists of three main stages; data condensation, data presentation, conclusion drawing. The results of this study show strategic efforts in increasing children's interest in reading and literacy in the West Sumatra region. The literacy tourism program emerged as an innovative solution that combines learning elements with recreational activities, creating a fun experience for children in interacting with books and literacy activities.

Moderation of Madhhabs in West Sumatra Towards Hadhanah of Minors Whose Mothers Remarry

This study examines the implementation of the fiqh madhhab of West Sumatran society regarding the hadhanah rights of minors whose mothers remarry. The study aimed to map the moderation of the West Sumatran madhhab of society, known as the Shafi'i madhhab. This research uses qualitative methods with a sociological approach to law. Seventeen cases were found in 3 research locations: Pariaman, Luhak Agam, and Luhak Fifty Cities. The location was chosen because it is an area with a higher level of moderation than other regions in West Sumatra. The location of this study was determined using a purposive random sample technique. In the people of West Sumatra, the right of hadhanah remains with the mother, even if the mother remarries. This opinion is in harmony with that of the Maliki Madhhab. The matrilineal kinship system in Minangkabau also supports this: the child belongs to the mother and her family. When the mother's father is divorced, the child follows his mother. However, in 3 cases, it was found that the father took away the rights of a minor whose mother remarried. Basically, the people of West Sumatra have practiced the moderation of mazhab. This is evident from their practice, where they indirectly practice the diversity of mazhab opinions in the case of hadhanah of minors whose mothers remarry.

Transforming the West Sumatra Police Hall: Retrofitting Strategies for a Multifunctional Facility

The West Sumatra Regional Police Hall, initially designed as an open sports facility without a roof, is repurposed into a multifunctional center for sports activities, social events, and disaster emergency response. The existing structure, a portal frame of reinforced concrete columns and beams, requires strengthening due to budget constraints that prevent its demolition and reconstruction. This study aims to evaluate the structural performance of the building after retrofitting to accommodate additional loads, including a truss frame and roof coverings. The jacketing method is used for column retrofitting, involving an increase in cross-sectional dimensions and additional reinforcement to enhance the structure’s strength and stiffness. Structural analysis shows that the original building lacks adequate capacity to withstand internal and external loads. Post-retrofitting, the analysis demonstrates significant improvements, including reduced shear forces and bending moments in columns and beams, minimized inter-level deflections, and compliance with column interaction diagrams. These enhancements ensure the building is structurally safe, particularly against seismic hazards, and capable of fulfilling its new functions. The findings highlight the effectiveness of the jacketing method for retrofitting and its potential application in similar structural repurposing projects.

Dispute over Customary Land of the Bodi Sapik Clan, Certified Without the Permission of the Mamak Kapalo Waris and Its Settlement in Jorong Baruah, Tanah Datar

Land disputes arise from conflicts of interest over land. Communal customary land is one type of land that is often disputed. One such dispute over communal customary land belonging to the Bodi Sapik clan occurred in Jorong Baruah, Nagari Padang Magek, Tanah Datar Regency. In this case, the communal customary land was certified without the permission of the head heir. West Sumatra Regional Regulation No. 7 of 2023 on Communal Customary Land states that the head heir is the leader of the communal customary land. Furthermore, Article 13 stipulates that the management and utilization of communal customary land is carried out by the head heir based on consensus with the clan members. Therefore, a study is needed with the following research questions: 1) Why did the defendant not seek prior permission from the head heir before certifying the Bodi Sapik clan's communal customary land? 2) How was the certification process of the Bodi Sapik clan's communal customary land carried out without the permission of the head heir in Jorong Baruah, Nagari Padang Magek, Tanah Datar Regency? 3) How was the dispute over the certification of the Bodi Sapik clan's communal customary land, which was carried out without the permission of the head heir in Jorong Baruah, Nagari Padang Magek, Tanah Datar Regency, resolved? This research uses an empirical juridical method with qualitative analysis. Based on the analysis and discussion, the results of this study show that the reason the defendant did not seek permission from the head heir when certifying the Bodi Sapik clan's communal customary land was because it was not the defendant who registered or certified the communal customary land, but rather the defendant's older brother, Jhond Kennedy, and because the defendant had not yet received his share of the inheritance and was trying to protect the inherited property. Meanwhile, the certification process of the Bodi Sapik clan's communal customary land in Jorong Baruah, Nagari Padang Magek, was carried out in 2000 when the defendant's older brother was the village head and there was a National Agrarian Operation Project (Prona) which authorized village governments to issue land ownership certificates (sporadik). This sporadik was used as the basis for land registration (issuance of a communal customary land certificate) at the Tanah Datar Regency Land Agency office. Furthermore, the dispute over the Bodi Sapik clan's communal customary land was resolved through negotiation, followed by mediation at the Tanah Datar Police Station, Batusangkar District Court, and finally at the Padang State Administrative Court.

Entrepreneurial Intentions of Accounting Students Based on Entrepreneurial Knowledge, Self-Efficacy, Family Environment, and Accounting Knowledge

Competition for labor in Indonesia is getting tighter, especially for new graduates. Increasing entrepreneurial interest among students, especially accounting students, is one solution to overcome unemployment. This study aims to analyze the effect of entrepreneurial knowledge, self-efficacy, family environment, and accounting knowledge on entrepreneurial intentions of accounting students at public universities in the southern Sumatra region. This research uses quantitative methods with a sample of 104 accounting students class of 2019 who have taken entrepreneurship courses. Data were collected through questionnaires and analyzed using multiple linear regression. The results showed that the four independent variables, namely entrepreneurial knowledge, self-efficacy, family environment, and accounting knowledge, have a positive and significant influence on student entrepreneurial intentions. This study provides implications for the development of planned behavior theory and is an evaluation material for higher education institutions in improving entrepreneurship programs to encourage students to become entrepreneurs and reduce unemployment rates.

The Child Marriage Trends in 3T Regions of Sumatra: The Impact of Law No. 16/2019 and the Covid-19 Pandemic on Poor Communities

The study "Identification of Changes in Marriage Trends Age < 19 years Post the Law No. 16/ 2019 and in Covid Age 19 in Rural and Urban Poor, in 3T (Outer, Remote, and Frontier) Region of Sumatra Island" was carried out by PERMAMPU (Perempuan Sumatra Mampu) in 26 villages distributed over 26 districts, in 8 provinces on the island of Sumatra, using the FPAR (Feminist Participatory Action Research) method. This study is undermined by PERMAMPU's concerns about the increasing data and practice of child marriage and early marriage <19 years especially in the countryside, although the Marriage Law No. 1 of 1974, which previously allowed 16 years of marriage for women and 19 years for men, has been reduced to a minimum age of 19 years in women and men through the Law No.1 of 2019. The FPAR method focuses on the life stories of women and related stakeholders. The information and data obtained from 1,147 sources (986 women & 161 men) resulted in 32 case studies. In addition to qualitative data, also obtained quantitative data that showed an increasing trend in child-age marriage practices. This is typically caused by, among other things, a lack of understanding of Law No. 16 of 2019 and a low level of education about sexual and reproductive health rights, which led to unwanted pregnancies, school dropouts, and poverty.

STRATEGIES IN THE IMPLEMENTATION OF SYNCHROMODAL FREIGHT TRANSPORTATION ON SUMATERA ISLAND

The Sumatra region plays a significant role in Indonesia's economy. In 2022, for instance, the region contributed 22.04% to Indonesia's Gross Domestic Product (GDP), ranking just below Java, the largest contributor. Sumatra is rich in various resources such as plantations, oil, gas, and geothermal energy. However, the operational activities of freight transportation in Sumatra, particularly West Sumatra, still face several challenges stemming from the transportation system and environmental conditions. This research was conducted to explore the opportunities, challenges, strengths, and weaknesses of implementing a synchromodal transportation system in Sumatra as an analysis for its implementation. The study used the Synchromodality Framework and SWOT Analysis. Several transportation collaboration models have been developed, including unimodality, intermodality, multimodality, and synchromodality. Each model has its advantages and disadvantages and is applied based on the characteristics of the transportation system. Related studies have been conducted on multimodal transport, hub & spoke for regional transportation, and single-mode transport. The study concluded that the advantages of implementing a synchromodal transportation system in Sumatra include better utilization of available resources concerning real-time aspects, flexibility, collaboration and coordination, and synchronization. Its weaknesses are related to the need for collaboration networks among transportation operators from different business sectors. The opportunities for implementing synchromodal transportation in Sumatra include real-time aspects, flexibility, collaboration and coordination, synchronization, and commodity and regional factors. The challenges relate to the complexity of planning synchromodal transportation networks and routes, as well as the need for technological and information system support

SISTEM INFORMASI KEPEGAWAIAN PADA BADAN KEUANGAN DAN ASET DAERAH SUMATERA UTARA BERBASIS WEBSITE

This study aims to design and develop a website-based personnel information system at the North Sumatra Regional Finance and Asset Agency to improve the efficiency and effectiveness of personnel data management. This information system is designed to overcome various problems that often arise in manual data management, such as data duplication, delays in information processing, and difficulty in accessing fast and accurate data. The method used in this waterfall method research includes needs analysis, system design, development, and system testing. The resulting system has main features, namely management of employee personal data, work history, absence, performance assessment, and career development information. This website-based system allows related parties to access and manage personnel data in real-time, increasing ease in monitoring performance and personnel administration processes. The test results show that this system is able to improve the efficiency of personnel data management and minimize errors that occur in manual data processing. The implementation of this website-based personnel information system is expected to support the improvement of the performance of the North Sumatra Regional Finance and Asset Agency as a whole.

Analysis of Waste Management at TPS Perumnas Mandala, Kec. Percut Sei Tuan

Indonesia is a country with a very large population and the trend continues to increase. The North Sumatra region produces the 7th largest volume of waste in Indonesia, with around 882,033 thousand tons of waste generated. Perumnas Mandala is one of the areas in the city of Medan that has a dense population, where the temporary disposal site (TPS) is not far from residential areas. So the problem of waste management arose at the Perumnas Mandala waste landfill, Percut Sei Tuan district. The aim of this research is to determine waste management at TPS Perumnas Mandala Kec.Sei Tuan. This research uses a qualitative approach with descriptive research type. The population in this study were all residents around Perumnas Mandala. The samples in this study were informants, namely the head of waste officers at the Perumnas Mandala TPS, 2 waste officers at the Perumnas Mandala TPS, and several residents around the Perumnas Mandala TPS, namely around 5 communities around the Perumnas Mandala TPS, using a purposive sampling technique. The research results show that waste management at TPS is still not good due to several factors such as lack of waste transportation facilities, lack of waste officers in managing waste at TPS, lack of community habits in sorting types of waste, limited trucks and trucks that are damaged so they stop working. operating waste transportation for 4 months, this has caused the volume of waste to increase at the TPS. The conclusion of this research is that waste management at the Perumnas Mandala TPS is not optimal, it is recommended that the government and the private sector improve facilities and infrastructure as well as collaborate with the community in managing waste well.

Optimization of GGMplus Gravity Data to Identify Sumatran Faults Segments in Kaba Stratovolcano, Bengkulu, Revealed by FHD and SVD Techniques

Abstract Kaba volcano is a perilous and currently active volcanic site located near the Sumatran fault, specifically within the Kepahiyang region of Bengkulu. Given the intricate nature of its location, it is crucial to monitor the local fault zone activity in the vicinity of the Kaba volcano. meanwhile, these fault zones are typically associated with high permeability areas and are characterized by high-density contrasts. Therefore, we applied First Horizontal Derivative (FHD) and Second Vertical Derivative (SVD) methods to identify the presence of the Musi Kepahiyang segment in Bengkulu, using GGMplus high resolution gravity data. Based on the results of the FHD analysis, clear gravity anomalies are observed along the northwest (NW) and southeast (SE) regions of Kepahiyang, with Bouguer anomaly values reaching 800 mGal. The discernible patterns unveiled through FHD analysis distinctly delineate the Musi fault (NW), Kepahiyang fault (SW), and Garba fault, unveiling a rich tapestry of tectonic activity surrounding the Kepahiyang area in Bengkulu. Complementing these findings, SVD analysis reveals a consistent anomaly distribution, albeit with marginally diminished Bouguer anomaly values, affirming the robustness of the detected features. Through the fusion of FHD and SVD methodologies, our study offers an understanding of the structural complexities pervading the segment in Kaba Stratovolcano, shedding light on its dynamic geological evolution, and fortifying our comprehension of fault dynamics in the Sumatra region.

Analysis of land use using Landsat 8 OLI in coastal North Sumatra: a study from 2019 to 2024

Abstract Medan and Deli Serdang are recognized as the most developed regions in Northern Sumatra. However, there have been limited studies focusing on recent land use changes in their coastal zones. To address this gap, this study aims to analyze land use in Medan and Deli Serdang and examine the changes between 2019 and 2024. Using recent Landsat 8 OLI imagery, a supervised classification was conducted in Google Earth Engine. The CART classifier was used to divide the land use into water bodies, built-up, agricultural land, and mangroves. The Kappa index for 2019 and 2024 were 0.78 and 0.77, respectively, indicating reasonable classification accuracy. Agricultural land was found to be the dominant land use type, covering 52.78 % in 2019 and 51.76 % in 2024. A decrease was observed in agricultural land and water bodies, while mangrove coverage and built-up areas increased. The findings provide current conditions of land use in the coastal area of Medan and Deli Serdang, especially for planning and conservation in the coastal area.

Diseminasi dan Adopsi Inovasi Pupuk Bioorganik di Tingkat Petani Kabupaten Lima Puluh Kota

Lima Puluh Kota Region is one of regions in West Sumatra is known for its centers of food crops such as corn, peanuts, sweet potatoes, and paddy. Farmers must be able to optimize the land so that production and productivity of food crop can be increased. The optimization of land in this region can be done by eco-friendly agriculture, such as using bio-organic fertilizer technology. The objective of this research is to identify the rate of dissemination and acceptance of bio-organic fertilizer innovation in Lima Puluh Kota Region Farmers. The research method used a census with the number of respondents are 70 farmers. To describe research variables used descriptive statistical analysis with frequency table. The level of dissemination in this research is measured easy-to-understand information, information relevance, recipients of information. The results of the research are the dissemination rate belongs to the highest category with the score 3.5 and the adoption rate in the higher category with the score 3.5. Keywords: adoption, bio-organic, dissemination, innovation

Pengaruh Spiritual Leadership Terhadap Workplace Spirituality Dan Organization Citizenship Behavior Serta Dampaknya Terhadap Performance Pada Personel Kepolisian Daerah Sumatera Utara

This study aims to examine and analyze the effect of Spiritual Leadership on personnel Performance through Workplace Spirituality and Organizational Citizenship Behavior, directly or indirectly. The approach used in this research is a causal approach. The population in this study were all police personnel at the North Sumatra Regional Police Directorate of Special Criminal Investigation (Ditreskrimsus). The sample in this study used the slovin formula sample, totaling 69 police personnel at the North Sumatra Regional Police Directorate of Special Criminal Investigation (Ditreskrimsus). Data collection techniques in this study used documentation, observation, and questionnaire techniques. Data analysis techniques in this study used a quantitative approach using statistical analysis using Outer Model Analysis, Inner Model Analysis, and Hypothesis Testing. Data processing in this study uses the PLS (Partial Least Square) software program. The results of this study indicate that Spiritual Leadership, Workplace Spirituality and Organizational Citizenship Behavior have a direct effect on employee performance, Spiritual Leadership has a significant effect on Workplace Spirituality, and Spiritual Leadership, Workplace Spirituality has a significant effect on Organization Citizenship Behavior and indirectly Spiritual Leadership has a significant effect on personnel performance through Workplace Spirituality and Organizational Citizenship Behavior of police personnel at the North Sumatra Regional Police Directorate of Special Criminal Investigation (Ditreskrimsus)

EVALUATION OF DAILY SATELLITE AND REANALYSIS OF RAINFALL DATA OVER SOUTH SUMATRA REGION

The limitations of good rainfall data due to constraints on direct measurements can be overcome by using satellite data or reanalysis data. The use of this data must, of course, go through a validation process first. This research aims to evaluate daily data from the Tropical Rainfall Measurement Mission (TRMM) version 3B42RT (TRMM_3B42RT) and European Center for Medium-Range Weather Forecasts (ECMWF) Reanalysis 5 (ERA5) data against data collected from 17 rain gauges in the Sumatra region South. Evaluation is carried out based on the Correlation Coefficient (CC), Root Mean Square Error (RMSE), Mean Absolute Error (MAE), and Mean Bias Error (MBE) values between the data. In addition, the estimation capabilities of TRMM_3B42RT and ERA5 were evaluated based on the Probability of Detection (POD), False Alarm Ratio (FAR), and Critical Success Index (CSI) values. The results show a very high correlation between TRMM_3B42RT and ERA5 with rain gauge data, especially in terms of monthly data. These values (monthly data) for TRMM_3B42RT and ERA5 data are 0.3-0.9 and 0.2-0.9, respectively. The RMSE values of TRMM_3B42RT and ERA5 data in monthly analysis are 75-250mm/month and 100-180mm/month, respectively. The forecasting performance of TRMM_3B42RT and ERA5 shows good results, especially for moderate rainfall in daily data and heavy rainfall in monthly data. The results of this analysis show tha the monthly data TRMM_3B42RT is more in line with the station data and can be used in further research.

Connectivity Infrastructure Spending and Its Indicator Achievement: Case Study of Southern Sumatra Region

Connectivity infrastructure is one of the crucial aspects in the development of a region. The Indonesian government has allocated a significant budget for connectivity infrastructure spending. The effectiveness of infrastructure spending reflects how much the connectivity infrastructure indicators have been achieved. The increase in connectivity infrastructure spending must be directly proportional to the rise in the quality and quantity of connectivity infrastructure. This study aims to analyze the correlation between connectivity infrastructure spending and the achievement of its indicators, especially in the Southern Sumatra region. The analysis method used is the Pearson Correlation analysis method, an approach to analyzing growth and the effectiveness of connectivity infrastructure spending. The results show that infrastructure spending and the achievement of its indicators have a relatively weak and negative correlation for roads and bridges. This study provides implications that the Southern Sumatra Region still needs improvement and evaluation between the distribution of government spending and program implementation for better regional development effectiveness.