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Amerta, Gede Arya
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SYNTHESIS OF NANOHYDROXYAPATITE FROM BUKIT JIMBARAN LIMESTONE Amerta, Gede Arya; Mardana, Ida Bagus Putu; Yasa, Putu
Indonesian Physical Review Vol. 9 No. 1 (2026)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v9i1.548

Abstract

The global demand for biocompatible biomimetic materials drives the development of nanohydroxyapatite (HAp) for biomedical applications. This study aims to synthesize nanohydroxyapatite (Ca₁₀(PO₄)₆(OH)₂) from Bukit Jimbaran limestone, Bali, through a precipitation method. XRF analysis shows that the limestone contains 99.62% CaO, which is the main source of calcium. FTIR results detect the presence of phosphate (PO₄³⁻), carbonate (CO₃²⁻), calcium oxide (CaO), and hydroxyl (OH⁻) groups, confirming the formation of the typical HAp structure. The XRD diffraction pattern showed good agreement with JCPDS 09-0432, with major peaks on the (211), (112), and (300) planes, lattice parameters a = b = 9.45 Å and c = 6.85 Å, an average crystallite size of 8.70 nm, and a crystallinity of 92.88%. SEM-EDX analysis revealed agglomerated particle morphology, with a Ca content of 32.0 wt.% and a P content of 14.0 wt.%. The high crystallinity and very small crystallite size confirm the potential of this synthesized HAp to enhance bioactivity and accelerate bone integration, making Jimbaran limestone HP a strong candidate in the biomedical sector.
PEMBERDAYAAN PERTANIAN LAHAN KERING MALALUI PERTANIAN BAWANG MERAH ORGANIK BERTEKNOLOGI DIGITAL Widayana, Gede; Parwata, I Gusti Lanang Agung; Erlina, Nia; Mardana, Ida Bagus Putu; Artha, I Komang Restu Widi; Jayanti, Ni Kadek Cinta Eka Putri; Wiguna, Anak Agung Gde Suyoga; Amerta, Gede Arya; Febryanti, Putu Vina; Yasa, Gede Darmika
JMM (Jurnal Masyarakat Mandiri) Vol 10, No 2 (2026): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v10i2.37984

Abstract

Abstrak: Program Pengabdian kepada Masyarakat (PkM) ini dilaksanakan pada kelompok tani mitra di wilayah pedesaan dengan basis ekonomi pertanian hortikultura dan perikanan air tawar. Permasalahan utama yang dihadapi mitra meliputi sistem produksi yang masih konvensional, keterbatasan akses air, lemahnya manajemen usaha, serta ketergantungan pemasaran pada pengepul. Kegiatan pengabdian bertujuan meningkatkan kapasitas produksi dan nilai tambah ekonomi mitra melalui penerapan teknologi digital dan penguatan manajemen usaha. Metode pelaksanaan menggunakan pendekatan Participatory Action Learning System (PALS) yang meliputi sosialisasi, pelatihan, penerapan teknologi, pendampingan dan evaluasi, serta penguatan kelembagaan dan keberlanjutan dengan melibatkan 25 anggota kelompok tani. Evaluasi dilakukan melalui pre–post assessment keterampilan dan pencatatan perubahan produktivitas. Hasil kegiatan menunjukkan peningkatan keterampilan teknis mitra sebesar 38%, peningkatan efisiensi produksi pertanian sebesar 30%, serta peningkatan nilai jual produk olahan bawang merah rata-rata sebesar 25% melalui diversifikasi produk dan perbaikan sistem pemasaran.Abstract: This Community Service Program (PkM) is implemented in partner farmer groups in rural areas with an economic base of horticulture and freshwater fisheries. The main problems faced by partners include conventional production systems, limited water access, weak business management, and marketing dependence on collectors. The community service activity aims to increase production capacity and economic added value of partners through the application of digital technology and strengthening business management. The implementation method uses the Participatory Action Learning System (PALS) approach which includes socialization, training, technology application, mentoring and evaluation, as well as institutional strengthening and sustainability by involving 25 farmer group members. Evaluation is carried out through pre-post skills assessments and recording productivity changes. The results of the activity show an increase in partners' technical skills by 38%, an increase in agricultural production efficiency by 30%, and an average increase in the selling value of processed shallot products by 25% through product diversification and improvements to the marketing system.
RESTORASI LUMBUNG PANGAN MELALUI TRANSFORMASI SISTEM PERTANIAN DAN PETERNAKAN BERTEEKNOLOGI TERBARUKAN Ekayana, Anak Agung Gde; Putra, I Dewa Putu Gede Wiyata; Aristana, I Dewa Gede; Widayana, Gede; Julyasih, Ketut Srie Marhaeni; Suarmanayasa, I Nengah; Mardana, Ida Bagus Putu; Amerta, Gede Arya; Wiguna, Anak Agung Gde Suyoga; Mahartana, Ida Bagus Putu Putra
JMM (Jurnal Masyarakat Mandiri) Vol 10, No 2 (2026): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v10i2.38352

Abstract

Abstrak: Wilayah mitra sasaran menghadapi penurunan produktivitas pertanian dan peternakan akibat keterbatasan air, rendahnya efisiensi teknologi, serta meningkatnya kerentanan usaha tani. Program pengabdian Kosabangsa ini bertujuan meningkatkan produktivitas, efisiensi sumber daya, dan kapasitas teknis mitra melalui penerapan teknologi tepat guna berbasis energi terbarukan dan pendekatan partisipatif. Kegiatan dilaksanakan menggunakan metode Participatory Action Learning System (PALS) yang meliputi sosialisasi, pelatihan, penerapan teknologi, pendampingan dan evaluasi, serta dan penguatan kelembagaan dan keberlanjutan, dengan melibatkan dua kelompok mitra sektor pertanian dan peternakan sebanyak 50 orang. Evaluasi dilakukan melalui pre–post assessment keterampilan, observasi lapangan, dan pencatatan perubahan kinerja produksi. Hasil program menunjukkan peningkatan produktivitas pertanian sebesar 25%, peningkatan efisiensi penggunaan air sebesar 35%, serta penurunan tingkat penyakit ternak sebesar 50%. Selain itu, terjadi peningkatan hardskill mitra dalam pengelolaan teknologi dan praktik usaha tani berkelanjutan.Abstract: The target partner area faces declining agricultural and livestock productivity due to limited water, low technological efficiency, and increasing vulnerability of farming businesses. The Kosabangsa community service program aims to increase productivity, resource efficiency, and technical capacity of partners through the application of appropriate technology based on renewable energy and a participatory approach. Activities are implemented using the Participatory Action Learning System (PALS) method, which includes socialization, training, technology application, mentoring and evaluation, and institutional strengthening and sustainability, involving two groups of 50 agricultural and livestock sector partners. Evaluation is carried out through pre-post skills assessments, field observations, and recording changes in production performance. The program results show a 25% increase in agricultural productivity, a 35% increase in water use efficiency, and a 50% decrease in livestock disease rates. In addition, there has been an increase in partners' hard skills in technology management and sustainable farming practices.
TRANSFORMASI PEREKONOMIAN MASYARAKAT MELALUI INTEGRASI USAHA TANI-TERNAK DAN KERAJINAN SONGKET BERTEKNOLOGI MODERN Paramartha, A. A. Gede Yudha; Adnyana, I Gede; Mardana, Ida Bagus Putu; Amerta, Gede Arya; Artha, I Komang Restu Widi; Jayanti, Ni Kadek Cinta Eka Putri; Wiguna, Anak Agung Gde Suyoga; Yasa, Gede Darmika; Febryanti, Putu Vina
JMM (Jurnal Masyarakat Mandiri) Vol 10, No 2 (2026): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v10i2.37971

Abstract

Abstrak: Desa Jinengdalem memiliki potensi sektor tani–ternak dan kerajinan songket, namun belum terkelola optimal akibat ketimpangan irigasi, minimnya penerapan ipteks, lemahnya regulasi desa, serta rendahnya integrasi pengelolaan limbah antar sektor. Program KKN-PMM ini bertujuan meningkatkan kapasitas produksi dan nilai tambah ekonomi melalui pengembangan sistem tani–ternak organik terpadu dan penguatan sentra kerajinan tenun songket. Mitra kegiatan berjumlah 50 orang, terdiri atas 30 petani Kelompok Tani Subak Ketug-Ketug dan 20 pengrajin Kelompok Poni’s Songket. Metode pengabdian menggunakan pendekatan Participatory Action Learning System (PALS) berbasis pentahelix melalui tahapan sosialisasi, pelatihan, penerapan ipteks, pendampingan dan evaluasi, serta penguatan kelembagaan. Program difokuskan pada peningkatan hardskill (teknik produksi, pengelolaan limbah, kualitas produk) dan softskill (manajemen usaha dan kerja sama kelompok). Evaluasi pre–post menunjukkan peningkatan keterampilan teknis petani sebesar 35%, pengrajin 40%, produksi gabah 30%, serta nilai jual songket 25%.Abstract: Jinengdalem Village has potential in the agriculture-livestock and songket craft sectors, but this potential has not been optimally managed due to irrigation imbalances, minimal application of science and technology, weak village regulations, and low integration of waste management between sectors. This KKN-PMM program aims to increase production capacity and economic added value through the development of an integrated organic farming and livestock system and the strengthening of songket weaving centers. There are 50 partners in this activity, consisting of 30 farmers from the Ketug-Ketug Farmers Group and 20 craftsmen from the Poni's Songket Group. The service method uses a pentahelix-based Participatory Action Learning System (PALS) approach through the stages of socialization, training, science and technology application, mentoring and evaluation, as well as institutional strengthening. The program focused on improving hard skills (production techniques, waste management, product quality) and soft skills (business management and group cooperation). Pre-post evaluations showed a 35% increase in farmers' technical skills, a 40% increase in artisans' technical skills, a 30% increase in grain production, and a 25% increase in the selling price of songket.
Co-Authors Anak Agung Gde Ekayana Aristana, I Dewa Gede Artha, I Komang Restu Widi Erlina, Nia Febryanti, Putu Vina Gede Widayana I Gede Adnyana I Gst Lanang Agung Parwata I Nengah Suarmanayasa Ida Bagus Putu Mardana Jayanti, Ni Kadek Cinta Eka Putri Ketut Srie Marhaeni Julyasih Mahartana, Ida Bagus Putu Putra Paramartha, A. A. Gede Yudha Putu Yasa Wiguna, Anak Agung Gde Suyoga Wiyata Putra, I Dewa Putu Gede Yasa, Gede Darmika