Garuda - Garba Rujukan Digital

LANDSLIDE HAZARD MAPPING IN SIBOLANGIT DISTRICT, NORTH SUMATRA PROVINCE USING GEOGRAPHIC INFORMATION SYSTEMS Panjaitan, Frandica; Somantri, Lili; Maruddani, Rizki Feroza; Kartikasari, Ika
Jurnal Tanah dan Sumberdaya Lahan Vol. 12 No. 1 (2025)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2025.012.1.14

The purpose of this study was to find out and describe the use of GIS in mapping the level of landslide vulnerability in Sibolangit District, Deli Serdang Regency, North Sumatra. The model used referred to the estimation of the 2004 Puslittanak, as it utilizes parameters that are easy to measure, widely available, and in accordance with the territory of Indonesia. These parameters include rainfall, rock type, soil type, slope gradient, and land cover. The research methods used were overlay, scoring, and weighting. In the mapping process, each parameter had a score of classification multiplied by the weight of each parameter, then the results of the multiplication of the scores and weights were summed based on the suitability of their geographical location. The results of the study showed that the Sibolangit District area had the potential for landslides from low, medium to high levels. Based on the landslide disaster prediction model, the study area predominantly fell under the moderate susceptibility class, covering 15 villages. Additionally, 10 villages were identified with low vulnerability level and 5 villages with high vulnerability level. The use of GIS was also used to see the size of each area in Sibolangit District based on the level of vulnerability to landslide disasters. The level of validity of this map is quite good because it uses official data and methods suitable for the territory of Indonesia. Thus, it is accurate enough for the purpose of vulnerability identification and landslide disaster mitigation planning.

LANDSLIDE HAZARD MAPPING IN SIBOLANGIT DISTRICT, NORTH SUMATRA PROVINCE USING GEOGRAPHIC INFORMATION SYSTEMS Panjaitan, Frandica; Somantri, Lili; Maruddani, Rizki Feroza; Kartikasari, Ika
Jurnal Tanah dan Sumberdaya Lahan Vol. 12 No. 1 (2025)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2025.012.1.14

The purpose of this study was to find out and describe the use of GIS in mapping the level of landslide vulnerability in Sibolangit District, Deli Serdang Regency, North Sumatra. The model used referred to the estimation of the 2004 Puslittanak, as it utilizes parameters that are easy to measure, widely available, and in accordance with the territory of Indonesia. These parameters include rainfall, rock type, soil type, slope gradient, and land cover. The research methods used were overlay, scoring, and weighting. In the mapping process, each parameter had a score of classification multiplied by the weight of each parameter, then the results of the multiplication of the scores and weights were summed based on the suitability of their geographical location. The results of the study showed that the Sibolangit District area had the potential for landslides from low, medium to high levels. Based on the landslide disaster prediction model, the study area predominantly fell under the moderate susceptibility class, covering 15 villages. Additionally, 10 villages were identified with low vulnerability level and 5 villages with high vulnerability level. The use of GIS was also used to see the size of each area in Sibolangit District based on the level of vulnerability to landslide disasters. The level of validity of this map is quite good because it uses official data and methods suitable for the territory of Indonesia. Thus, it is accurate enough for the purpose of vulnerability identification and landslide disaster mitigation planning.

KAJIAN ETHNICHEMISTRY DALAM PEMBELAJARAN KIMIA MELALUI INTEGRASI BUDAYA MENYIRIH PADA MATERI GUGUS FUNGSI DENGAN MENGGUNAKAN PENDEKATAN SAINTIFIK Kartikasari, Ika; Hariyadi, Bambang; Zurweni, Zurweni; Haryanto
Jurnal Muara Pendidikan Vol. 10 No. 1 (2025): Jurnal Muara Pendidikan, Vol 10 Issue 1, Juni 2025
Publisher : LPPM Universitas Muhammadiyah Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52060/mp.v10i1.2995

This study aims to examine the application of the ethnochemistry approach in chemistry learning through the integration of betel chewing culture in functional group material using a scientific approach. The betel chewing culture involving materials such as betel leaves (Piper betle), areca nut (Areca catechu), and betel lime (calcium hydroxide) is known to contain various active chemical compounds, including alkaloids, phenols, esters, and alcohols. The scientific approach allows students to observe, ask, try, reason, and communicate the results of the analysis of these materials, so that they can understand the concept of functional groups in the context of local culture. This study uses a descriptive qualitative method with a literature study approach and participatory observation of the practice of betel chewing culture in the community. The results of the study show that the integration of local culture in chemistry learning can improve students' conceptual understanding, learning interest, and cultural awareness. The ethnochemistry approach has proven effective in creating contextual, meaningful, and relevant learning to students' daily lives. Therefore, the application of a local culture-based learning model through a scientific approach is recommended as an innovative alternative in chemistry learning. Keywords: Ethnichemistry, betel chewing culture, scientific approach, functional groups, contextual chemistry learning.

EFEKTIFITAS MODEL PEMBELAJARAN THINKING ALOUD PAIR PROBLEM SOLVING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA SMP Yohanes Azka, Yohanes Azka; Kartikasari, Ika; Suryati, Suryati; Asyhar, Rayandra
Jurnal Muara Pendidikan Vol. 9 No. 2 (2024): Jurnal Muara Pendidikan, Vol 9 No 2, Desember 2024
Publisher : LPPM Universitas Muhammadiyah Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52060/mp.v9i2.2502

This study examined the low mathematical problem-solving ability of grade VIII students at SMP N 13 Merangin, where only 12 out of 35 students achieved the Minimum Completeness Criteria (KKM), far below the classic achievement target of 70%. In addition, student learning outcomes are still relatively low at 31.18%, completely because the learning method is still centered on teachers. This study aims to describe the mathematical problem-solving ability of students using the Thinking Aloud Pair Problem Solving (TAPPS) learning model better than conventional learning. An experimental method was used, with 124 grade VIII students as the population and simple random sampling to determine class VIII B as the control group and VIII C as the experimental group. Data was collected using essay questions on algebraic simplification. The normality test using the Kolmogorov-Smirnov formula and the homogeneity test with the Hartly test (F-test) showed normal and homogeneous distributed data. The hypothesis test using the t-test produces a calculation value of t-calculate. =2.65 is greater than, =1.67, meaning, Accepted. This shows that the mathematical problem-solving ability taught using the TAPPS model is better than the conventional method.

Title

Found 4 Documents
Search

Abstract

Abstract

Abstract

Abstract

Title Search

Found 4 Documents Search

Abstract

Abstract

Abstract

Abstract

Title

Found 4 Documents
Search