Sumatra Region Research Articles

Peran Pertumbuhan Ekonomi Dalam Menunjang Kesejahteraan Masyarakat

The role of economic growth aims to change people's lives. A prosperous society can be viewed through economic growth. Economic growth is a process towards a better increase based on rising national income, per capita income and also reduced unemployment. This research uses qualitative methods. This study aims to examine how economic growth in building community welfare. The results of this study show that based on the prevailing price in 2019 Indonesia's gross domestic product reached 15,833.9 trillion. Java and Sumatra regions as suppliers contributed the highest to the increase in gross domestic product in 2019. Meanwhile, in 2022 based on prevailing prices, the Indonesian economy will reach 4,919.9 trillion. In this case, the Java region is still the largest contributor to the increase in gross domestic product.
 Keywords : Role, Economic Growth, Public Welfare

METODE DOUBLE EKSPONENSIAL SMOOTHING DALAM MEMPERKIRAKAN JUMLAH KEBUTUHAN ENERGI LISTRIK DI PT PLN (PERSERO) WILAYAH SUMUT

Electrical energy is one of the most important things in human life. Electrical energy is needed in the industrial sector. In meeting the needs of electrical energy, good planning is needed by predicting the needs of electrical energy. Holt's Double Exponential Smoothing method is a method that can be used to predict electrical energy needs. The results of forecasting the demand for electrical energy at PT PLN (Persero) for the North Sumatra Region for 2022 to 2030 use the Double Double Exponential Smoothing method from Holt (with a value of α = 0.99 and γ = 0.1 which has a MAPE value of 2.0372%. ) namely 13933.19 gwh, 14478.46 gwh, 15023.73 gwh, 15569.00 gwh, 16114.26 gwh, 16659.53 gwh, 17204.80 gwh, 17750.06 gwh, 18295.33 gwh.

Studies on mealybugs (Hemiptera: Pseudococcidae) in Indonesia, with description of a new species and three new country records

Pseudococcid mealybugs (Hemiptera: Coccomorpha: Pseudococcidae) include economically important insect pests worldwide; however, little is known about the species present in Indonesia. Samples were collected and identified from wild and cultivated plants in several regions of southern Sumatra, Indonesia between 2018 and 2020. Eighteen species of Pseudococcidae in 8 genera were identified, including one undescribed species and new host plants. Dysmicoccus zeynepae Zarkani & Kaydan sp. n. is described and illustrated based on the morphology of the adult female, and a key is provided for the identification of all 18 species. Furthermore, Dysmicoccus arachidis Williams, D. carens Williams and Pseudococcus leptotrichotus Williams are recorded for the first time from Indonesia; new locality and host-plant data are given for these species.

Performance and Pest and Disease Resistance Tests Local Genotype of Lowland Rice

Rice is a food commodity with economic value as the main staple to maintain national and global food stability. The need for rice is in genotype with population growth, so it is necessary to increase production and productivity. The development of superior varieties requires genetic resources from local rice genotypes from West Sumatra regions, including Marapulai, Silih Baganti, Bujang Marantau, Hitam Manih, Junjuang, Mundam, Papanai and so on. Information on plant performance tests related to growth, agronomic components, and resistance to pests and diseases of local genotypes of lowland rice is still very limited. The experiment aimed to obtain local genotypes of lowland rice that had the appearance and resistance to pests and diseases. The observed growth and yield components were planting height, number of productive tillers, flowering age, ripening age, panicle length, number of seeds per panicle, number of good seeds per panicle, 1000 grain weight, and dry grain weight per ha. Pest and disease resistance variables are; brown planthopper pests, bacterial leaf blight and blast disease. Observational data were analyzed by F test at 5% level with the Least Significant Difference (LSD) at 5%. Analysis using PC software program Statistix ver 8.0. Collected data are observing pest and disease resistance based on assessment standards from the International Rice Research Institute. Based on the growth and agronomic components of the experiment, Maraplai was one of the genotypes that could be used as a superior variety, with the resistance of brown planthopper biotypes 1, 2 and 3 to making them susceptible. Marapulai local genotype has better growth and yield characteristics, as well as resistance to pests and diseases.

Analysis of agricultural land carrying capacity in North Sumatra Province in 2020

North Sumatra Province is an area with considerable agricultural potential in the Sumatra region. Analysis of the carrying capacity of agricultural land in North Sumatra in 2020 is very important to do in order to determine the carrying capacity of agricultural land in North Sumatra in meeting the food needs of its people. The purpose of this paper is to calculate and present the results of the analysis of the carrying capacity of agricultural land in North Sumatra Province. The data needed in this study is secondary data obtained from several journals and publications from related agencies, such as the Central Statistics Agency (BPS) of North Sumatra Province. The results showed that overall the carrying capacity of North Sumatra’s land was classified as low. The low carrying capacity of rice farming land in North Sumatra is caused by increasing population growth and the quality of agricultural land which continues to decline so that the production of rice plants cannot meet the maximum food needs of the community. Therefore, it is necessary to make efforts to increase the carrying capacity of rice farming land in this area, for example by reducing the population and improving the quality of agricultural land resources.

Utilisation FINN data version 2.5 for forecasting PM2.5 during forest fire 2019 in Sumatra by using WRF–Chem

In 2019 there were forest fires in Sumatra, Indonesia, which co-occurred with a strong positive IOD. The forest fire disaster caused the thick smoke containing dusts such as particulate matter with a size of 2.5 μm (PM2.5). In this study, a model simulation was conducted to predict the distribution of PM2.5 using the WRF–Chem model when forest fires in 2019 occurred. The prediction was produced by adding the latest version of fire inventory from NCAR (FINN) input data, version 2.5. The prediction result was verified and compared with ground station data from the Ministry of Environment and Forestry (KLHK) station and NASA’s EOSDIS satellite imagery. There are three ground stations that were used for verification: the Jambi, Palembang and Pekanbaru stations. Of the three stations, the prediction results at the Palembang station are the best in correlation and RMSE value. Spatially, the distribution of PM2.5 from the model result is similar and can follow the pattern of smoke distribution from satellite imagery observations. Even though, generally the WRF–Chem model equipped with the latest FINN data still cannot produce an accurate prediction for the 2019 forest fires event yet in Sumatra region.

Potential impact and return period analysis study of Sumatra paleo megathrust earthquake using scaling law relations of earthquake parameter (case study: Siberut-West Sumatra megathrust earthquake 1797, Mw 8.2 ~ 8.8)

The paleo-megathrust earthquake occurred in Siberut, West Sumatra in 1797 and it was estimated to have a magnitude (Mw) of about 8.2–8.8. This earthquake triggered a tsunami in the West Sumatra coast and its vicinity. The seismograph was not installed yet at that time, therefore it didn’t has earthquake parameter for advanced analysis. This study hoped to be able to see the earthquake potential impact if the earthquake occurred in this present era. Hereinafter using the scaling law relations of earthquake kinematic model in processing. The result is maximum intensity in Siberut and Tanahbala islands about VII-IX MMI, Painan, Padang, and Pariaman cities about V-VII MMI, and the northern part of West Sumatra region about VI-VII MMI. The PGA in Siberut and Tanahbala is about 60 % g, and Painan, Padang, and Pariaman are about 20 % g or more. Then the value of PGV in Siberut and Tanahbala is about 60 cm/s, in Painan about 10-20 cm/s, and in Padang and Pariaman city about 20-30 cm/s. Furthermore, an estimation of the return period of the earthquake if the source mechanism was modelled as a thrust and strike-slip faults for Mw 8.2-8.8 about 185 until 235 years and 336 until 616 years respectively.

SISTEM INFORMASI PENGARSIPAN PADA KANTOR DITRESKRIMUM SUBDIT III POLDA SUMATERA UTARA BERBASIS WEBSITE

Archives are reviews that have been written, printed and in various forms made by groups/organizations, individuals and institutions or agencies within a company. The archive contains letters, deeds, scripts, books, charters and so on, which can later be used as evidence for actions and decisions. At the office of the general criminal investigation directorate, sub-directorate III of the North Sumatra Regional Police, the archives are still archived in the agenda book or can be called manually archived, especially in the archiving of incoming and outgoing letters. The research objective is to build a website-based mail filing information system using the waterfall method. This study resulted in several menu sections such as adding letters, changing mail data and uploading letters. In testing the system using the black box method and with the desired results. Thus, the results from the data obtained can be applied to the general criminal investigation directorate office, sub-directorate III of the North Sumatra Regional Police.

IMPACT PROFILE OF ENSO AND DIPOLE MODE ON RAINFALL AS ANTICIPATION OF HYDROMETEOROLOGICAL DISASTERS IN THE PROVINCE OF SOUTH SUMATRA

El Niño Southern Oscillation (ENSO) is a weather phenomenon in the Pacific Ocean. At the same time, Dipole Mode (DM) is an ocean-atmosphere interaction phenomenon in the Indian Ocean. The area of South Sumatra Province, which is in the Monsunal area, makes the influence of ENSO and DM very instrumental in determining the length of the rainy season and throughout the year. The South Sumatra region is very vulnerable to forest and land fire disasters due to the condition of the area in the form of swamps and peatlands, which are very easy to burn if the dry season occurs in the South Sumatra area. In this study, an analysis of the effect of ENSO and DM on rainfall in the South Sumatra Region from 1981 to 2020 was carried out using a simple linear regression method and the correlation coefficient using Niño 3.4 index data and Dipole Mode with rainfall data and consecutive rainy days data. Consecutive Wet Day (CWD). The purpose of this study was to determine the effect of Enso and Dipole Mode on rainfall and CWD in the South Sumatra Region. The results show that the correlation between ENSO and rainfall is 0.0017-0.002573, DM and rainfall is 0.05972, and ENSO and CWD is -0.068. The correlation between DMI and CWD is 0.513. So it can be said that ENSO and DMI have no effect on rainfall in the South Sumatra Province. Still, the amount of CWD in South Sumatra Province is significantly determined by the Dipole Mode Index (DMI) at a moderate level. The number of consecutive rainy days in South Sumatra Province is influenced by the dynamics of the ocean and atmosphere of the Indian Ocean, which is characterized by the presence of positive IOD and negative IOD phenomena.

The Effect of El Niño Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD) on Rainfall and Its Correlation with Consecutive Dry Days (CDD) of South Sumatra Province from 1981-2020

El Niño Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD)` are events where the phenomenon of rising and falling sea surface temperatures becomes unnatural. Stronger events where the sea surface temperature anomaly becomes large, then this disrupts local fish and bird populations. The ENSO and IOD phenomena also affect rainfall in several parts of Indonesia. This study analyzed the effect of ENSO and IOD phenomena on rainfall in South Sumatra Province from 1981 to 2020 and the correlation between Consecutive Dry Days (CDD) and Rainfall in South Sumatra Province for the last 40 years. ENSO data and IOD data were analyzed against rainfall data analyzed using a simple linear regression method and associated with CDD in South Sumatra Province with the correlation method. In addition, a correlation analysis was also carried out between the Niño 3.4 index and the Dipole Mode Index (DMI) with rainfall at two stations, namely the Palembang Climatology Station and the Sultan Mahmud Badaruddin II Meteorological Station to determine how much influence the ENSO and IOD phenomena had on rainfall in the Sumatra Province. South. The results of the analysis show that the effect of ENSO and IOD on rainfall at each station is generally not significant. The state of rainfall in the Province of South Sumatra for the last 40 years is almost not influenced by El Nio and La Nia. This is presumably due to the location of the South Sumatra Region which is in the Munsonal area. Monsoon areas are characterized by a unimodial type of rainfall (one peak of the rainy season) where in June, July and August the dry season occurs, while December, January and February are the wet months. The remaining six months is a transitional or transitional period (three months of transition from dry season to rainy season and three months of transition from rainy season to dry season).

Deformation Analysis of 2012 Mw8.6 Indian Ocean Earthquake Based on GPS Data in Preseismic, Coseismic, and Postseismic Phases

The earthquake was one of the biggest natural disasters in Sumatra and dramatically affected this region and the surrounding area. Determination of surface deformation due to the earthquake is essential for disaster mitigation. The Global Navigation Satellite System (GNSS) is a commonly used method for determining surface deformation due to earthquakes. This study analyzes surface deformation during the preseismic, coseismic, and postseismic phases due to the 2012 Mw8.6 Indian Ocean earthquake. The study used Global Positioning System (GPS) data from the Sumatran GPS Array (SuGAr) network. The most significant horizontal deformation was observed at the LEWK station, which was 280.554 mm towards the northeast and experienced a subsidence of 40.830 mm in vertical deformation. Horizontal deformation is still felt by 22.453 mm to the northeast and vertical deformation of 8.810 mm (uplift) at stations that are farther (580 km) from the earthquake's epicenter. However, in the observation period of 60 days (postseismic phase), stations closer to the epicenter are still experiencing a postseismic phase. In contrast, stations far from the epicenter show that the postseismic phase is almost complete. In the preseismic phase, all stations experience almost the same horizontal deformation, ranging from 2.210 mm-3.639 mm, but with a different direction of movement, which may be caused by previous intense earthquake activity, which is still releasing energy (postseismic phase). On the other hand, the vertical deformation during the preseismic phase generally experiences an uplift except at the LEWK station. The results of this study can be additional information for earthquake mitigation in the Sumatra region

ANALISA KESTABILAN TRANSIEN MENGGUNAKAN METODE TRAJEKTORI KRITIS PADA SISTEM WILAYAH SUMBAR

This research is to examine the transient stability analysis using the critical trajectory method in the system of the West Sumatra region. Transient stability plays an important role for safety and reliability in the electric power system which aims to estimate the condition of the system when an outage occurs, either in the form of line discharge or generator discharge. This study discusses the stability of transients that occur due to disturbances in the system that affect the generator. When a disturbance occurs, the system will be in a transient state. In this condition, the safety relay will work to open the circuit breaker within a certain time. However, this does not guarantee that the system will return to steady state conditions. This study discusses the stability of transients that occur due to disturbances in the system that affect the generator. When a disturbance occurs, the system will be in a transient state. In this condition, the safety relay will work to open the circuit breaker within a certain time. However, this does not guarantee that the system will return to steady state conditions. After the disturbance the system will return to stability with a tcb open time of 0.300 second, while when the release of channel 10 between the Pauh Limo-Simpang Haru buses occurs with a tcb open time of 0.250 seconds, the critical clearing time value is 1.143 seconds, then the critical path that occurs in the simulation results the time of the loose line between the Pauh Limo-Simpang Haru bus is 1.143-1.144 second.

K-Means Clustering Algorithm Approach in Clustering Data on Cocoa Production Results in the Sumatra Region

Cocoa agricultural production in Indonesia is currently very low while demand continues to increase every year, so it is very important to build a model that can categorize cocoa farming data. The main objective of this research is to analyze agricultural data using data mining techniques that specifically use the K-Means Clustering algorithm, and Gaussian Mixture Models. In this research, we used quantitative research because it measure number-based data. The results of cocoa production so far still depend on land area, then the number of cocoa trees has a significant effect on the amount of production so it is very important for the government and researchers to develop technologies that can increase cocoa production yields where the demand for cocoa is currently very high in demand worldwide because it can classify the cocoa quality from good quality to poor quality. Based on testing the K-Means Clustering and Gaussian Mixture Model algorithms on data on cocoa production in four provinces, namely North Sumatra, West Sumatra, Lampung and Aceh which were optimized by the Silhouette method, it produced cluster values ​​of 2, 3 and 4. second with a value of 59.8%.

Erythrina subumbrans leaves extracts improved Diabetic condition by reducing MDA and 8-OHDG on Rat model

Erythrina subumbrans, commonly known as DadapDuri, have been used to treat diabetes by people in the West Sumatra region. This study was designed to determine E.subumbransextract on blood glucose and MDA levels in diabetic Wistar rats induced by low-dose Streptozotocin and a high-fat diet. Type II Diabetes Mellitus rats induced by High-fat diet (HFD) and followed by two times injection of a combination of Nicotinamide (110mg/kg BW) and low-dose Streptozotocin (40mg/kg BW). The rat was randomized and then divided into six groups (n=4). Diabetic rats were treated with E. subumbransextract orally in doses of 50, 100, and 200mg/200gBW once daily for three weeks. Metformin (90mg/200gBW, orally) was used as the reference drug. Blood glucose levels were measured every 7th day using a glucometer for three weeks of treatment. After treatment, the serum MDA and 8-OHdG were calculated. Intraperitoneal glucose tolerance test and intraperitoneal insulin tolerance test were performed on the last day of treatment. E. subumbransextract at a dose of 200mg/200gBW administered orally significantly (P < 0.05) could lower and normalize blood glucose levels compared to the Negative control group. The decrease in serum MDA and 8-OHdG levels during E. subumbransextract treatment at dose 3 was significantly different (P 0.05) than the HFD/STZ-NA control group. In this study, it can be concluded that E. subumbransleaves show promising hypoglycemic action and antioxidant effects starting at doses of 200mg/200gBW.

Analysis of Coulomb Stress Changes in Aceh Earthquake on Sibayak Volcano

Based on geological conditions, Indonesia is located between the Indo-Australian plate, the Eurasian plate, and the Pacific plate, making Indonesia prone to tectonic earthquakes. However, since the big earthquake that occurred in Aceh on December 26, 2004, the geological conditions in Sumatra have undergone significant changes marked by stressful situations in the western to southern regions of Sumatra, especially on Sibayak Volcano. This study used data from BMKG and Global CMT, which included magnitude (Mw), depth, earthquake coordinates (longitude and latitude), type of earthquake, strike, dip, and rake. From the analysis using Coulomb 3.3, the highest coulomb stress value of Sibayak Volcano was obtained in 2015 with an average change in coulomb stress of 0.235 bar, shear 0.1909 bar, normal 0.1106 bar. However, the lowest coulomb stress value occurs in 2021 with a moderate shift in coulomb stress of 0.0593 bar, shear 0.0251, normal 0.0849 bar.

Social Harmony in The Bedusun Sedakah Tradition at Belitang District Martapura Regebcy Indonesia

The various regions of Indonesia certainly have cultures and traditions that are formed and passed down from generation to generation. All existing customs and practices have their own unique features and turn them into a feature of society. The diversity of customs is also an attraction, not only must be preserved, but existing are traditions also important to be introduced to a wider audience. A tradition that exists and is practiced in the culture of the South Sumatra region is sedakah bedusun . A tradition to express gratitude and purify the village from various trials and difficulties of life. This study aims to understand and interpret the social and religious values ​​contained in the tradition. This study uses a sociocultural approach and phenomenological type research while data collection techniques are increasingly advanced, namely observation, in-depth interviews in addition to documentation. Data analysis is used simultaneously through interpretation and contents. The results of this study indicate that traditions based on local wisdom have undergone a process of acculturation and acculturation. The meaning of this tradition is to invite the community at large to maintain harmony and make it a social bridge for many people. This is reflected in each traditional procession and its social significance.

Religious Counseling With A Cultural Approach "Basasandi Syarak, Syarak Basandi Kitabullah" to Improve Islamic Spiritualism

Counseling is an activity to help the counselee so that his daily life becomes an effective life. The current phenomenon that occurs in the West Sumatra region is the occurrence of moral decadence caused by many things and one of the causes is that people no longer apply "adat basandi syarak, syarak basandi Kitabullah". The method used in this study is the library research method or a method that explores articles or research that discusses the things the researchers are researching. The results of religious counseling research with the cultural approach of "adat basandi syarak, syarak basandi Kitabullah" are effective in helping counselee problems.

Seismic Anisotropy in the Northern Sumatra Region from Shear Wave Splitting


 
 
 The northern Sumatra consists of several tectonic segments, such as subduction zone, the Sumatra and Mentawai faults. An analysis that can be used to identify the tectonic segments, located beneath the northern Sumatra, is shear wave- splitting. The purpose of the analysis of shear-wave splitting is to monitor the anisotropic characteristics of the structure of the earth layers located beneath the northern Sumatra. The monitoring data were collected from 4 BMKG stations with the magnitude was more than 6.3 Mw and the the range of the epicentral distance was about 85̊-140̊. The data analysis was conducted by using Splitlab program based on rotation-correlation method. The result of the shear-wave splitting analysis shows that there are two anisotropic layers. The delay time found in the first layer is about 0,5-0,9 s, which is assumed that it occurs due to the Sumatran fault. Meanwhile, the delay time found in the second layer is about 1,4-1,8 s, which is assumed that it occurs due to the subduction plate movement on the upper mantle layer. The results of TPTI, TSI and TRSI stations has shown congruence, that is the polarization direction is parallel to the Sumatra fault on the upper layer and the polarization direction is perpendicular to the Sumatra fault on the lower layer. The PSI station shows the polarization direction is different from the other stations, in which they show the polarization direction is perpendicular to the Sumatra fault on the upper layer and the polarization direction is parallel to the Sumatra fault on the lower layer. The difference of the data processing in the PSI station, we assume, is caused by the presence of a complex layer beneath Toba caldera.
 
 

ANALISIS KOMUNITAS ONLINE KITA MENGABDI SUMSEL

<p><em>The Kita Mengabdi Sumsel Community is a community founded on September 24, 2020 online. This community has a vision and mission to develop remote areas in the South Sumatra region. Initially, the Kita Mengabdi Sumsel community was only founded by three administrators, until now this community has 23 members consisting of various professions and regions of origin. What makes this community unique and different from other communities is that the Kita Mengabdi Sumsel community only consists of administrators and does not have members in it. In addition, this community stands online so that in its implementation, as well as meetings, it also runs online so sometimes it causes some problems internally.</em></p>

Implementation of Civil Procedural Law E-litigation in Justice System in Indonesia (Study in District Court in North Sumatra Region)

The background of this research is because The Supreme Court has made a breakthrough in the Law administration of Cases in the Court Electronically (Online) by issuing Supreme Court Regulation (PERMA) Number 1 of 2019 concerning the Administration of Cases and Trials in The Court Electronically. The results of the research, the electronic trial system (e-Litigation) experienced many obstacles, especially in the district court area which is categorized, Blankspot area so that the trial process is not normal for example, the trial schedule that has been set in the e-Court can be known and cannot be known because of internet network interference such as in the Sibuhuan District Court area, Padang Lawas Regency, North Sumatra Province. This view was also affirmed by Abdullah Husain, an Advocate from Peradi Medan who had filed a case in the area. As a result, the Advocate had to contact the Substitute Registrar for the trial schedule to be reviewed because the internet network was problematic. In addition, people in the area prefer conventional (face-to-face) trials that have been carried out for decades on the basis of the law Rechtsreglemen buitengewesten (Rbg). The solution to this problem, the judges will generally question the litigants, whether the trial is electronic or not. The judge always gives views on this e-Court to the litigants in the courtroom, and if approved by all parties, news of the approval of the e-Litigation trial is made. The same obstacles are also experienced by the Simalungun/Pematangsiantar District Court, Padangsidempuan, Tebing Tinggi, Lubuk Pakam and Medan District Court. According to the e-Court Corner officer of the Medan District Court, Gunawan, in the Medan District Court there is very rare internet network disruption unless pln istric flow dies. Advocates take a better view with e-Litigation because the process is easier, faster, light and simple costs in accordance with Article 2 paragraph (4) of Law No. 48 of 2009 on Judicial Power. Of course also, also to avoid games by the judicial mafia. In addition, in the midst of the Covid-19 Pandemic condition is not over, PERMA No. 1 of 2019 will also help the parties not to flock to the conference. PERMA is strongly responded by advocates in Indonesia, especially in North Sumatra