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All Journal Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Teknosains Techno: Jurnal Penelitian Jurnal Fisika FLUX Jurnal Geocelebes KACANEGARA Jurnal Pengabdian pada Masyarakat J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Engagement: Jurnal Pengabdian Kepada Masyarakat
Rohima Wahyu Ningrum
Program Studi Pendidikan Fisika, Fakultas Keguruan Dan Ilmu Pendidikan, Universitas Khairun, JL. Bandara Babullah-Akehuda, 97735, Ternate
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences

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Mapping of pga value using psa method in West Halmahera North Maluku Rohima Wahyu Ningrum; Wiwit Suryanto; Hendra Fauzi; Estuning Tyas Wulan Mei
Jurnal Teknosains Vol 9, No 2 (2020): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.41483

Abstract

The earthquake that occurred in the West Halmahera region was very detrimental, even though the human casualties were not very significant. But it will affect the stability and capacity of a region in terms of regional development. The mapping of earthquake-prone areas is carried out by a probabilistic seismic hazard analysis (PSHA) method to analyze soil movement parameters, namely Peak Ground Acceleration so that it can determine earthquake-prone areas in West Halmahera. The results of seismic hazard analysis show that the West Halmahera area is an area that is relatively prone to earthquake hazards because it is still strongly influenced by subduction (megathrust) earthquakes from the Philippine plate, Maluku sea and Sangihe. This is indicated by the value of earthquake acceleration on the Peak Ground Acceleration for the 500 year return period of around 0.38 - 3.69 g and 0.30 - 3.69 g for the 2500 year return period.
Microtremor Data to Strengthen the Students Mastery of Materials in the Implementation of Integrated Physics Learning Rohima Wahyu Ningrum; Hendra Fauzi; Wiwit Suryanto; Estuning Tyas Wulan Mei; Risky Nuri Amelia
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 10 No. 1 (2020)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v10n1.p81-89

Abstract

A geophysical research has been conducted to determine the level of hazard vulnerability in West Halmahera by using microtremor data. Microtremor data are analyzed using the Horizontal to Vertical Spectral Ratio (HVSR) method and it is processed using Geopsy software to know hazard vulnerability level in the region . Data analysis and processing are used as sources of information in physics learning materials using an integrated learning model. Research objectives are to train the students to understand the materials in the fields of study and to enhance other discovery ideas.This research method uses the correlational method and the type of research is experimental research. The research design is an uniquecase research design and the instrument used is tests and questionnaires. The results of this research indicate that the microtremor data using integrated learning models of integrated types have effect on the students Mastery of materials in the implementation of physics learning. The effect of the integrated learning model of integrated type on the students Mastery of materials on the concepts of vibration and waves is 16% and it is in low category. Whereas, the students' responses to integrated learning model of integrated type are quite fun and it can help to improve their mastery of the material on the concepts of vibration and waves.
Mapping of Seismic Vulnerability Potential for Earthquake Disaster Migitation in South Morotai: Pemetaan Potensi Kerentanan Seismik sebagai Mitigasi Bencana Gempa di Morotai Selatan Rohima Wahyu Ningrum; Risky Nuri Amelia; Suryani Taib; Rahim Achmad; Marwis Aswan
JURNAL GEOCELEBES Vol. 6 No. 1: April 2022
Publisher : Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/geocelebes.v6i1.19150

Abstract

The geological condition of Morotai Island is influenced by small faults and tectonic activity from several major and minor plates that form the subduction zone, are the Pacific plate, the Philippine plate, the Sangihe plate, and the Moluccas Sea plate. This causes Morotai Island to have a high potential for earthquake hazards. South Morotai is the center of government, services, trade and economy on Morotai Island, and has a high potential for earthquakes. Therefore, an analysis of the distribution of seismic vulnerability values ​​in South Morotai was carried out based on mapping as a disaster mitigation effort in South Morotai. The microtremor method uses the H/V spectral ratio analysis technique to analyze the level of earthquake hazard based on the value of the seismic vulnerability index by considering local soil conditions. The ground frequency value (f0) obtained when measuring microtremor is between 0.6 Hz to 0.7 Hz. The amplitude value (A0) in the South Morotai area is around 1.9 – 5.2 times strengthening. The value of the seismic susceptibility index (Kg) in the study area is calculated based on the value of the basic frequency and amplitude with between 5.9 to 44.8. It was concluded that the distribution of a high Kg index and an earthquake prone area was in Darame Village, Muhajirin Village, and Wawama Village with a Kg value > 20. This area is composed of alluvium consisting of gravel, potential mud, and boulders, so it is classified into soft soil type. Less vulnerable areas are in Gotalamo Village, Daruba Pantai Village, and Darame Village
KAJIAN KEBERADAAN AIRTANAH PADA SEBAGIAN LERENG GUNUNGAPI GAMALAMA PULAU TERNATE Marwis Aswan; Rohima Wahyu Ningrum; Muhammad Reza Kusman
TECHNO: JURNAL PENELITIAN Vol 8, No 1 (2019): Techno Jurnal Penelitian
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tk.v8i1.1007

Abstract

Kota Ternate adalah sebuah kota yang berada di bawah kaki gunung api, yaitu gunung Gamalama. Daerah Jambula dan Takome merupakan daerah yang sebagian masyarakatnya masih kekurangan air bersih. Penelitian ini bertujuan untuk mengetahui kedalaman airtanah bebas dan struktur perlapisan bawah permukaan di daerah Jambula dan Takome. Untuk melihat kedalaman airtanah bebas dan struktur perlapisan bawah permukaan dapat digunakan metode geolistrik, dengan menggunakan alat Ares multi elektroda, kemudian di ambil (download) dengan menggunakan perangkat lunak (software) ARES-G, kemudian diolah dengan  perangkat lunak (software) Res2Dinv, dan dianalisis menggunakan deskriptif kuantitatif. Dari hasil penelitian menunjukan bahwa kedalaman airtanah bebas pada lintsan J-1 sampai dengan J-3 daerah Jambula berkisar antara 3,2-27,0 m, dan lintasan T-1 dan T-2 daerah Takome berkisar antara 13,4-21,4 m, dengan nilai resistivitas pada seluruh lintasan berkisar antara 14,8-234 Ω.m, lintasan yang paling prospek terdapat airtanah adalah lintasan J-3 daerah Jambula. Lapisan struktur bawah permukaan yang didapat pada tiap-tiap lintasan pengukuran dapat di kelompokkan dalam tiga lapisan, yaitu lapisan pasiran lempung dan kerikil dengan kisaran kedalaman antara 1,25-18,8 m, lapisan kerikil dan pasiran dengan kisaran kedalaman antara 3,2-27 m, dan lapisan batuan beku yang kompak (impermeable) dengan kisaran kedalaman antara 15,9-39,2 m.
Earthquake Disaster Risk Assessment Analysis In Jailolo Coastal Region Rohima Wahyu Ningrum; Risky Nuri Amelia; Hasmawati Hasmawati; Marwis Aswan; Saprudin Saprudin
TECHNO: JURNAL PENELITIAN Vol 10, No 2 (2021): Techno Jurnal Penelitian
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v10i2.3523

Abstract

The village, which is located in the Coastal District of Jailolo, West Halmahera, had a considerable impact from the earthquake. This is because the earthquakes that occur are influenced by tectonic earthquakes due to the movement and collision of tectonic plates on land and the seabed. If the collision causes a fault in the seabed, a tsunami can occur. The purpose of this study was to analyze the risk of earthquake disasters in supporting development planning and to produce an earthquake risk map for the coastal area of Jailolo District, West Halmahera. The analytical method used is descriptive quantitative, and the data collection model is a questionnaire with random sampling. The results obtained are in the form of a hazard value using the PGA value and produce the same PGA value, namely > 0.70 gal with a high category for Bobanehena Village, Saria Village, Payo Village, Bobo Village, and Idamdehe Village. The value of vulnerability (physical, social, and economic vulnerability) shows that Bobanehena Village has a high vulnerability index value with a score of 1.9. The capacity index value for the five villages has the same score of 3 and is included in the high class. So that the value of the earthquake risk level with a high class is obtained, namely in Bobanehena Village and Bobo Village. The high level of risk in the two villages is influenced by the frequency of occurrence of earthquakes with high intensity in the area, the impact of losses due to earthquakes is quite high. Earthquake risk reduction efforts will be maximized if a comprehensive earthquake risk assessment analysis is carried out and a commitment from the Government is carried out.
PEMETAAN PARTISIPATIF JALUR EVAKUASI TSUNAMI DI DESA BABANG KABUPATEN HALMAHERA SELATAN MALUKU UTARA Mohammad Ridwan Lessy; Rohima Wahyuningrum
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 3, No 2 (2020): Juli
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v3i2.672

Abstract

Bencana tsunami masih menjadi acaman wilayah pesisir di Indonesia karena intersitas gempabumi yang tinggi di wilayah ini dan singkatnya waktu tempuh gelombang tsunami ke daratan. Untuk itu, warga masyarakat perlu dipersiapkan untuk menghadapi bencana ini dengan menyusun peta jalur evakuasi tsunami. Peta evakuasi disusun secara partisipatif dengan melibatkan semua elemen pemangku kepentingan untuk mendapatkan kesepahaman persepsi antara semua pemangku kepentingan. Tujuan penyusunan peta jalur evakusi untuk memudahkan dan mengarahkan warga melalukan evakuasi mandiri menuju ke tampat yang lebih aman. Peta jalur evakuasi ini akan semakin efektif apabila ditindaklanjuti dengan penyusnan rencana aksi, sosialisasi dan simulasi secara terus menerus untuk mengevaluasi peta yang telah disusun.
VERTICAL GARDEN MEWUJUDKAN SEKOLAH DASAR BERBASIS LINGKUNGAN Abdulrasyid Tolangara; Rohima Wahyu Ningrum
J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Vol 2, No 1 (2018): April
Publisher : IKIP PGRI Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1147.763 KB) | DOI: 10.30734/j-abdipamas.v2i1.192

Abstract

ABSTRACTSchool yard is the most appropriate learning media to support learning creativity for learners. The narrow use of school yard has not been well implemented so that the students' ignorance towards the environment is closely related to the decreasing environmental quality in schools. To improve the quality of education and learning achievement of learners about environmental knowledge can provide a direct understanding to learners about the environment by applying the concept of vertical garden in the yard of the school. Vertical concept of this garden becomes an alternative in getting around the yard or narrow land. The school plays an important role in this devotion program at the time of making the garden vertical garden, where the school proposes the implementation of maintenance activities and planting new plant species in the annual plan of SDN 34 Kota Ternate. Socialization and workshops that have been done with the school together with community service team Unkhair can provide an early description of the use of a narrow school yard by applying the garden vertical garden. Another target of this program is that students and teachers feel the benefits of this school park in classroom learning so that they can apply the concept of farming obtained for the home.Keywords: Garden vertical garden, environment, school yard.ABSTRAKPekarangan sekolah merupakan media belajar yang paling tepat untuk menunjang kreativitas belajar bagi peserta didik. Pemanfaatan pekarangan sekolah yang sempit masih belum terlaksana dengan baik sehingga ketidakpedulian peserta didik terhadap lingkungan sangat berkaitan dengan menurunnya kualitas lingkungan di sekolah. Untuk dapat meningkatkan kualitas pendidikan dan prestasi belajar peserta didik tentang pengetahuan lingkungan dapat memberi pemahaman langsung kepada peserta didik tentang lingkungan hidup dengan menerapkan konsep vertical garden di pekarangan sekolah. Konsep vertikal garden ini menjadi sebuah alternatif dalam menyiasati pekarangan atau lahan yang sempit. Pihak sekolah sangat berperan penting dalam program pengabdian ini pada saat pembuatan taman vertical garden, dimana pihak sekolah mengusulkan pelaksanaan kegiatan perawatan dan penanaman jenis tanaman baru dalam rencana tahunan SDN 34 Kota Ternate. Sosialisasi dan workshop yang telah dilakukan bersama pihak sekolah bersama tim pengabdian masyarakat Unkhair dapat memberikan gambaran awal tentang pemanfaatan pekarangan sekolah yang sempit dengan menerapkan taman vertical garden. Target lain luaran program ini adalah diharapkan peserta didik dan guru merasakan manfaat dari taman sekolah ini pada pembelajaran di kelas sehingga dapat menerapkan konsep bercocok tanam yang diperoleh untuk dirumah.  Kata Kunci: Taman vertical garden, lingkungan, pekarangan sekolah.
Crystal Structure and Magnetic Susceptibility of Iron Sand From Pangeo Village, Morotai Jaya Subdistrict as The Cathode of Lithium-Ion Batteries Rahim Achmad; Suryani Taib; Rohima Wahyu Ningrum
TECHNO: JURNAL PENELITIAN Vol 11, No 2 (2022): TECHNO JURNAL PENELITIAN
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v11i2.5562

Abstract

Morotai Island has a wealth of iron sand which is a natural resource in Morotai Jaya District, Pangeo Village. The utilization of iron sand is still for local community building materials. The purpose of this study was to determine the structure and magnetic susceptibility of iron sand as a basic material for cathode materials in the manufacture of lithium-ion batteries (LIB). The research sample was taken randomly, then it was prepared in the laboratory to obtain dry-phase iron sand. After being tested using an XRD tool, namely samples A, E, and I, it was found that there was a lot of Fe3O4 contained in iron sand. The diffraction peaks indicate Fe3O4 material with an inverse spinel structure. Sample A is the most crystalline compared to sample I. Sample E has the lowest diffraction peak pattern due to the dominant mineral hematite (Fe2O3) 70.31%. The value of the BSM test obtained the greatest magnetic susceptibility of 82867.54x10-8m3 /kg. The smallest is in sample J with a value of 13186.98 54x10-8m3 /kg because during synthesis it is slightly attracted by magnets and the color is not too black which mixes a lot with other materials. In addition, this relationship is directly proportional to sample E which contains the magnetic material Fe2O3 of the characterization of 70.31. The range of magnetic susceptibility values in samples A to L is in the interval (46 – 80,000) x 10-8m3/kg, and (20,000 - 110,000) x 10-8m3/kg. Based on this interval, both magnetic and mass susceptibility of each iron sand sample contained ilmenite (FeTiO3) particles in the antiferromagnetic group and magnetite (Fe3O4) in the ferromagnetic group.
Pendampingan Komunitas Sekolah melalui Kegiatan Vertical Garden untuk Mewujudkan Sekolah Dasar berbasis Lingkungan di SDN 34 Kota Ternate Maluku Utara Abdul Rasyid Tolangara; Rohima Wahyu Ningrum
Engagement: Jurnal Pengabdian Kepada Masyarakat Vol 2 No 1 (2018): May 2018
Publisher : Asosiasi Dosen Pengembang Masyarajat (ADPEMAS) Forum Komunikasi Dosen Peneliti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52166/engagement.v2i1.24

Abstract

School yard is the most appropriate learning media to support learning creativity for learners. The narrow use of school yard has not been well implemented, so that the students' ignorance towards the environment is closely related to the decreasing environmental quality in schools. To improve the quality of education and learning achievement of learners about environmental knowledge, school can provide a direct understanding to learners about the environment by applying the concept of vertical garden in the yard of the school. Vertical concept of this garden becomes an alternative way in getting around the yard or narrow land. The school plays an important role in this devotion program at the time of making the garden vertical garden, where the school proposes the implementation of maintenance activities and planting new plant species in the annual plan of SDN 34 Kota Ternate. Socialization and workshops that have been done with the school together with community service team, it can provide an early description of the use of a narrow school yard by applying the garden vertical garden. Another target of this program is that students and teachers feel the benefits of this school park in classroom learning, so that they can apply the concept of farming obtained for the home.
Study of Silica Sinter Mineral Content, Surface Temperature, and Fluid Type of Waya Makawa Hot Spring Ploly Village, Makian Island, North Maluku Ningrum, Rohima Wahyu; Taib, Suryani; Aswan, Marwis
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 21, No 2 (2024): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v21i2.17557

Abstract

ABSTRACT − Waya Makawa hot spring is the only hot spring in Ploly Village, Makian Island, North Maluku. Hot water utilization is still in the form of hot spring tourism and has not been explored further. The surface temperature of the Waya Makawa hot spring is quite high, so it is interesting to research because the temperature is the dominant parameter of geothermal areas. This study aimed to determine the mineral content of sintered silica and its relationship to surface temperature, as well as to determine the type of fluid (hot water) of Waya Makawa. The research method used is a quantitative method with mud samples to determine the content of sintered silica tested using the XRF method. A thermocouple temperature sensor measures The hot water sample for its surface temperature. Water samples were taken using a random sampling method to determine the content of chemical elements from hot springs and then analyzed using trilinear diagrams. The mineral content test results obtained in the Waya Makawa mud sample have a fairly high silica mineral content. Point 1 has a silica mineral content of 54.49%, while at point 2 it is 57.84%. At the location of point 1, the average surface temperature obtained is around 37.6 o C, while at point 2 it is around 40.6 o C. The relationship between surface temperature and mineral content in Waya Makawa hot water is very significant, the higher the temperature, the greater the silica mineral content at that point. The results of the chemical analysis show that the Waya Makawa hot spring is an alkaline chloride fluid type and is immature water, as well as an indication of a high permeable zone (fault). This hot water domination system is located in low relief, has been altered with silica characteristics, has silica sinter reserves, and occurs in many tectonic fault systems. 
Co-Authors A. R. Tolangara, A. R. Abdul Haris Rajab Amelia, Risky Nuri Aswan, Marwis Estuning Tyas Wulan Mei Hasmawati Hasmawati Hendra Fauzi Jumaris Jumaris Marwis Aswan Marwis Aswan Marwis Aswan Mohammad Ridwan Lessy, Mohammad Ridwan Muhammad Reza Kusman Rahim Achmad Rahim Achmad Rahim Achmad Saprudin, Saprudin Suryani Taib Suryani Taib Suryanto, Wiwit Wiji Raharjo