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All Journal JURNAL PIJAR Journal of the Indonesian Mathematical Society Science and Technology Indonesia Beta: Jurnal Tadris Matematika Jurnal Pengabdian Magister Pendidikan IPA EIGEN MATHEMATICS JOURNAL Jurnal Matematika UNAND Jurnal Teknodik Jurnal Abdi Insani Square : Journal of Mathematics and Mathematics Education JPIn : Jurnal Pendidik Indonesia SPEKTA (Jurnal Pengabdian Kepada Masyarakat : Teknologi dan Aplikasi) Jurnal Ilmiah Abdi Mas TPB Unram Prosiding Konferensi Nasional PKM-CSR Jurnal Pijar MIPA Jurnal Pariwisata Nusantara Jurnal Pendidikan dan Pengabdian Masyarakat Jurnal Pengabdian Inovasi Masyarakat Indonesia Sinergi dan Harmoni Masyarakat MIPA
Mamika Ujianita Romdhini
Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Mataram
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Nursing Physics Public Health Social Sciences Other

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Bimbingan Teknis Penggunaan Artificial Intelligence (AI) dalam Membuat Manuskrip Artikel Ilmiah di Fakultas MIPA Universitas Mataram Romdhini, Mamika Ujianita; Hermanto, Dhony; Hamdiani, Saprini; Kamali, Siti Raudhatul; Ismillayli, Nurul
Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 1 (2024): Januari - Maret
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v6i4.6412

Abstract

Salah satu indikator kinerja dosen adalah publikasi artikel ilmiah dalam jurnal bereputasi internasional yang harus diiringi dengan kemampuan dosen untuk membuat manuskrip artikel ilmiah yang berkualitas. Di sisi lain, kemajuan teknologi yang cepat membawa banyak perubahan dan memerlukan terobosan-terobosan teknis. Kecerdasan buatan atau artificial intelligence (AI) adalah salah satu kemajuan teknis yang memiliki potensi besar dalam mendukung kinerja dosen. Pengabdian ini bertujuan untuk meningkatkan kemampuan dosen-dosen Fakultas MIPA Universitas Mataram dalam menggunakan AI dalam membuat manuskip artikel ilmiah. Bimbingan teknis yang dilakukan menggunakan pendekatan praktis dan konseptual dengan metode Focus Group Discussion (FGD). Lokasi pengabdian yang dipilih adalah di Fakultas Matematika dan Ilmu Pengetahuan Alam. Tim Pengabdian kepada Masyarakat telah melakukan bimbingan teknis ini kepada dosen-dosen hingga tersusunnya manuskrip artkel ilmiah yang siap dipublikasikan dalam jurnal internasional bereputasi. Di masa mendatang, kegiatan ini diharapkan dapat diselenggarakan di tingkat program studi.
Keunggulan Berkelanjutan Pemasaran Gaharu Melalui Sinergi Riset dan Edukasi Kerjasama Universitas Mataram dan CSEAS Kyoto University Jepang Romdhini, Mamika Ujianita; Mulyaningsih, Tri; Ito, Michiho; Yanagisawa, Masayuki; Yumi, Fujiwara; Sukenti, Kurniasih; Sunarwidhi , Anggit Listyacahyani; Hidayati, Ernin; Julisaniah, Nur Indah
Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 2 (2024): April-Juni
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v7i2.7454

Abstract

Harga pasar gaharu yang tinggi sangat berpengaruh pada pemasaran gaharu. Perdagangan ini secara bertahap menimbulkan ancaman terhadap populasi gaharu di alam liar. Diperlukan identifikasi spesies, klasifikasi, dan penelitian yang akurat untuk memastikan budidaya dan perdagangan gaharu yang berkelanjutan. Pengabdian ini bertujuan untuk mengedukasi para pelaku industri gaharu di Pulau Lombok mengenai status terkini populasi spesies penghasil gaharu liar, termasuk dinamika perdagangan gaharu global secara keseluruhan. Edukasi yang dilakukan menggunakan pendekatan praktis dan konseptual dengan metode Focus Group Discussion (FGD) kerjasama FMIPA Universitas Mataram dan CSEAS Kyoto University, Jepang. Lokasi pengabdian yang dipilih adalah di Desa Orong, Desa Pusuk, dan Ampenan. Tim Pengabdian kepada Masyarakat telah melakukan edukasi agar khalayak sasaran memiliki peningkatan pengetahuan standarisasi kualitas gubal gaharu dalam rangka menjaga keberlanjutan pemasaran gaharu ke pasar internasional, serta usaha-usaha menjaga kelestarian pohon gaharu di Pulau Lombok
Indeks Topologi Padmakar Ivan dan Szeged pada Graf Koprima Prima dari Grup Bilangan Bulat Modulo Abdurahim, Abdurahim; Pratiwi, Lia Fitta; Karang, Gusti Yogananda; Wardhana, I Gede Adhiya Wisnu; Irwansyah, Irwansyah; Awanis, Zatta Yumni; Romdhini, Mamika Ujianita
Square : Journal of Mathematics and Mathematics Education Vol. 6 No. 2 (2024)
Publisher : UIN Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/square.2024.6.2.22836

Abstract

The Prime Coprime Graph is defined as a graph in which two distinct vertices are adjacent if and only if the greatest common divisor of their orders is 1, indicating that they are coprime. This research focuses on deriving general formulas for the Padmakar-Ivan index and the Szeged index for the coprime prime graph of the modulo integer group with n=p^k, where p is a prime number and k is not less than 2. As a result of this study, explicit formulas for the Padmakar-Ivan and Szeged indices were obtained, along with an analysis of the relationship between these two indices.Keywords: prime coprime graph, Padmakar-Ivan index, Szeged index.
Implementasi Modul Olimpiade SMP Di SMPN 2 Kuripan Lombok Barat Putra, Lalu Riski Wirendra; Pratama, Rendi Bahtiar; Karang, Gusti Yogananda; Irwansyah, Irwansyah; Wardhana, I Gede Adhitya Wisnu; Romdhini, Mamika Ujianita; Abdurahim, Abdurahim; Maulana, Fariz; Satriyantara, Rio; Awanis, Zata Yumni; Putri, Syaftirridho; Graha, Syifa Salsabila Satya; Wahidah, Fathul Maulina; Pratiwi, Lia Fitta; Pradana, Satriawan; Siboro, Ayes Malona; Farwan, Farwan
Sinergi dan Harmoni Masyarakat MIPA Vol. 1 No. 1 (2024): Oktober
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/sinonim.v1i1.5517

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk mengimpelementasikan modul pembelajaran olimpiade matematika bagi siswa SMPN 2 Kuripan. Kebutuhan akan modul ini didasarkan pada rendahnya akses siswa terhadap materi-materi persiapan olimpiade yang terstruktur dan sesuai dengan kemampuan serta kebutuhan mereka. Metode yang digunakan dalam pengembangan modul ini meliputi analisis kebutuhan, desain dan pengembangan modul, serta uji coba. Modul ini dirancang untuk mencakup berbagai topik matematika yang sering muncul dalam olimpiade, disertai dengan contoh soal dan pembahasan yang mendalam. Hasil dari kegiatan ini menunjukkan bahwa penggunaan modul olimpiade matematika ini dapat meningkatkan pemahaman siswa terhadap materi olimpiade, serta memotivasi mereka untuk lebih aktif dalam mengikuti kompetisi. Evaluasi melalui uji coba menunjukkan respon positif dari siswa, dengan peningkatan signifikan pada hasil latihan soal.
On Spectrum and Energy of Non-Commuting Graph for Group U_{6n} Romdhini, Mamika Ujianita; Nawawi, Athirah; Al-Sharqi, Faisal; Al-Quran, Ashraf
Journal of the Indonesian Mathematical Society Vol. 31 No. 4 (2025): DECEMBER
Publisher : IndoMS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jims.v31i4.1928

Abstract

Let $G$ be a group and $Z(G)$ be the center of $G$. In this paper, we discuss a specific type of graph known as the non-commuting graph, denoted by $\Gamma_G$, whose vertex set contains all group elements excluding central elements, $G\backslash Z(G)$. This graph has to satisfy a condition in which $v_p,v_q \in G\backslash Z(G)$ where $v_p \neq v_q$, are adjacent whenever $v_p v_q\neq v_q v_p$. This paper presents the spectrum and energy of the non-commuting graph for $U_{6n}$, $\Gamma_{U_{6n}}$ associated with the adjacency, degree sum, and degree sum adjacency matrices and their energy relationship.
Delta Degree-Based Indices of Prime Coprime Graph for Integers Modulo Group Abdurahim; Romdhini, Mamika Ujianita; Qudsi, Jihadil; Al-Sharqi, Faisal; Rodzi, Zahari Md.
Science and Technology Indonesia Vol. 11 No. 1 (2026): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.1.10-18

Abstract

Research on prime coprime graphs of finite groups has largely focused on structural properties, spectra, and classical topological indices, with limited attention given to delta degree-based indices. To address this gap, this study investigates delta degree-based topological indices of the prime coprime graph constructed on the group of integers modulo n, Zn. In this graph, the vertices correspond to the elements of Zn, and two distinct vertices are adjacent if and only if the greatest common divisor of their orders is either 1 or a prime number. In the present work, the focus lies on computing and analyzing several delta degree-based topological indices that are obtained by incorporating the concept of delta degree into classical topological indices, including the delta first Zagreb index, the delta second Zagreb index, the delta hyper Zagreb index, and the delta forgotten index. The methodology involves deriving formulas for these delta-based indices for various values of n, supported by systematic computations and data tabulation. Beyond purely algebraic computation, statistical tools are employed to investigate the relationships between different indices. In particular, a comparative distribution analysis is conducted to determine whether pairs of indices exhibit similar patterns of variability using the Levene test.
Revitalization of Agarwood Planting in Forest Areas with the Specific Purpose of Senaru as an Income-Generating Investment for University of Mataram and Cultivators Romdhini, Mamika Ujianita; Mulyaningsih, Tri; Muktasam, Muktasam; Baldovini, Nicolas; Takamatsu, Sakura; Nadia, Ahsanu; Puspita Dewi, Chandra
SPEKTA (Jurnal Pengabdian Kepada Masyarakat : Teknologi dan Aplikasi) Vol. 6 No. 2 (2025)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/spekta.v6i2.14086

Abstract

Background: Agarwood, valued for its aromatic fragrance, thrives in West Nusa Tenggara, where demand is very high. However, natural forest sources are scarce, driving up market prices and limiting supply. To address this, farmers have begun cultivating agarwood trees. Community service initiatives are urgent, as they offer economic, environmental, and social benefits. Contribution: This study introduces a community-based revitalization program for agarwood cultivation in the KHDTK (Forest Area with Specific Purpose) of Senaru. By integrating applied biotechnology with participatory forest management, the program provides empirical evidence of how agarwood planting can simultaneously improve rural livelihoods, support environmental rehabilitation, and contribute to broader debates in sustainable forestry and applied technology. Method: The methods include site assessment and sustainable land preparation, and staggered planting. A total of 2070 high-quality agarwood seedlings are distributed to local farmers, who received training in cultivation, maintenance, and resin production techniques. Monitoring was conducted over 6 months to evaluate survival, growth, and socio-economic outcomes. Results: After 6 months, 90% of seedlings survived, and carbon sequestration potential was estimated at 3.31 tons CO₂ per year. These findings indicate that agarwood revitalization can deliver measurable ecological and economic benefits. Conclusion: With proper implementation and support, this project can serve as a model for other regions seeking to balance ecological preservation with socio-economic growth.
Relation Between Randic and Harmonic Energies of Commuting Graph for Dihedral Groups Romdhini, Mamika Ujianita; Nawawi, Athirah
Science and Technology Indonesia Vol. 11 No. 2 (2026): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.2.481-488

Abstract

Consider a finite group G with center Z(G). This work examines the commuting graph $\Gamma_G$, a graph constructed from a group $G$ whose vertices correspond precisely to the noncentral elements of the group, that is, all elements in $G$ except those belonging to its center $Z(G)$. The graph is defined on the vertex set $G\backslash Z(G)$, where two distinct vertices vp and vq are joined by an edge precisely when they commute, that is, whenever vp vq=vq vp. The number of vertices adjacent to vp is denoted as dvp, which is the degree of vp. The Randic and harmonic matrices of $\Gamma_G$ are defined as square matrices in which $(p,q)-$th entry are $\frac{1}{\sqrt{d_{v_p} \cdot d_{v_q}} }$ and $\frac{2}{d_{v_p}+d_{v_q} }$ if $v_p$ and $v_q$ are adjacents, respectively; otherwise, it is zero. Randic energy is the sum of the absolute eigenvalues of the Randic matrix whereas harmonic energy is the sum of the absolute eigenvalues of the harmonic matrix. In this paper, we compare the Randic and harmonic energies of the commuting graph for non-abelian dihedral group of order 2n, D2n.
PENERAPAN PENDEKATAN PEMECAHAN MASALAH MELALUI BELAJAR DALAM KELOMPOK KECIL UNTUK MENINGKATKAN PROFESI BELAJAR PADA MATA KULIAH TEORI PELUANG Mamika Ujianita Romdhini, Laila Hayati dan
Jurnal TEKNODIK Jurnal Teknodik Vol.XVI No.2 Juni 2012
Publisher : Pusat Data dan Teknologi Informasi Kementerian Pendidikan Kebudayaan, Riset dan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1152.504 KB) | DOI: 10.32550/teknodik.v0i0.18

Abstract

Penelitian ini dilakukan untuk meningkatkan prestasi belajar mahasiswa dengan pendekatan pemecahan masalah melalui belajar dalam kelompok kecil. Penelitian ini dilakukan dalam 3 siklus pada mahasiswa semester I program studi pendidikan matematika FKIP Universitas Mataram tahun ajaran 2011/2012. Hasil penelitian menunjukkan dari siklus 1 sampai siklus 3 berturut-turut diperoleh ketuntasan belajar yang dicapai mahasiswa adalah 85,19% dengan rata-rata 78,37; 59,25% dengan rata-rata nilai 59,35 dan 81,48% dengan rata-rata nilai 79,81. Aktivitas belajar mahasiswa dari siklus 1 sampai siklus 3 berjalan efektif. Dari hal tersebut, disimpulkan bahwa penerapan pendekatan pemecahan masalah melalui belajar dalam kelompok kecil dapat meningkatkan prestasi belajar mahasiswa program studi pendidikan matematika tahun ajaran 2011/2012 pada mata kuliah teori peluang.
Structural Properties and Reverse Topological Indices of Order GCD Graphs of Integers Modulo Ring Romdhini, Mamika Ujianita; Abdurahim, Abdurahim; Maharani, Andika Ellena Saufika Hakim
Journal of the Indonesian Mathematical Society Vol. 32 No. 2 (2026): JUNE
Publisher : IndoMS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jims.v32i2.2009

Abstract

The order GCD graph of a ring, having the ring elements as the vertex set, and two distinct vertices are adjacent if and only if the greatest common divisor (gcd) of the order of both vertices is equal to the order of the product of these two vertices in the ring. This paper aims to analyze the reverse Sombor, Randić, and Harmonic indices of the order GCD graph where the set of vertices is integers modulo ring elements. The results provide new insights into the mathematical properties of reverse topological indices and their potential applications.
Co-Authors Abdul Azis Lalu Mursy Abdurahim Abdurahim, Abdurahim Ahmad Tedi Ruslan Al-Quran, Ashraf Al-Sharqi, Faisal Awanis, Zatta Yumni Ayes Malona Siboro Baldovini, Nicolas Borisman Bertinegara Davina Puspa Ningrum Devi Lastri Dhony Hermanto Diah Ayu Saptyaningtyas Dira Agnita Putri Widodo Dwi Yan Resilia Dzakiyatul Mardliyah Ermawati Sapni ERNIN HIDAYATI Fahmi Handika Fariz Maulana Farwan Farwan Farwan, Farwan Fathul Maulina Wahidah Ghina Briliana Fatin Octariana Graha, Syifa Salsabila Satya Gusti Yoga Nanda Karang Gusti Yogananda Karang Gusti Yogananda Karang Halilintar Nur Hidayatullah Hermanto, Koko Hibban Kholiq Hibban Kholiq Husni Fitroti I Gede Adhitya Wisnu W. I Gede Adhitya Wisnu Wardhana I Gede Adhitya Wisnu Wardhana I Gede Adhitya Wisnu Whardana Irwansyah - Irwansyah Irwansyah Irwansyah Irwansyah Irwansyah Irwansyah Irwansyah Irwansyah Ito, Michiho Jihadil Qudsi Julisaniah, Nur Indah Karang, Gusti Yogananda Krissinta Bulan Wardhani Kurniasih Sukenti Kurniawan Sugiarto Laila Hayati Laila Hayati, Laila Lailia Awalushaumi Lalu Djatmika Santriawan Lalu Riski Wirendra Putra Lely Kurniawati Lely kurniawati Lena Yuliastini Lia Fitta Pratiwi Lia Fitta Pratiwi M. Afdhaluzzikri M. Setyo Nugroho Maharani, Andika Ellena Saufika Hakim Mariana, Baiq Marliadi Susanto Marliadi Susanto Marwan Marwan Maulana, Fariz Mira Sulisdiana Muhammad Imam Al Paqih Muhammad Khairurradziqin Muhammad Taufan Muktasam Mustika Hadijati Nadia W Nadia, Ahsanu Nafika Fatanaya Nawawi, Athirah Ni Wayan Switrayni Nora Idiawati Nurkurnia Sari Nurul Ismillayli Parizal Hidayatullah Pradana, Satriawan Pratama, Rendi Bahtiar Pratiwi, Lia Fitta Puguh Riawang Puspita Dewi, Chandra Putra, Lalu Riski Wirendra Putri, Syaftirridho Qomaria Sinta Sari Qudsi, Jihadil Rabbelia Tri Qudrani Raden Mohammad Akbar Rafi Raehanatul Mardiyah Rahman, Muhammad Rizki Rendi Bahtiar Pratama Rida Akausar Hardi Rina Juliana Rio Satriyantara Ririn Maulidia Rizki Faturrahman Rodzi, Zahari Md. Rossy Jamalul Hoir Ruru Honiar Saprini Hamdiani Sarwa Hita Satriawan Pradana Septi Fajria Siboro, Ayes Malona Siti Rahmatullah Siti Raudhatul Kamali Siti Raudhatul Kamali Sunarwidhi , Anggit Listyacahyani Surya Hadi Surya Hadi Syaftirridho Putri Syifa Salsabila Satya Graha Takamatsu, Sakura Teguh Ardianto, Teguh Tri Mulyaningsih Ulul Khairi Zuryati Wahidah, Fathul Maulina Wahyu Ulfayandhie Misuki Wardhana, I Gede Adhiya Wisnu Wirahadi, Ahmad Yanagisawa, Masayuki Yumi, Fujiwara Zata Yumni Awanis Zata Yumni Awanis