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All Journal Jurnal Pendidikan Matematika dan IPA IJEE (Indonesian Journal of English Education) Tarbawi : Jurnal Ilmu Pendidikan Jurnal GEOSAPTA British: Jurnal Bahasa dan Sastra Inggris J-PEN Borneo : Jurnal Ilmu Pertanian Journal of Earth and Marine Technology (JEMT) Gesture: Jurnal Seni Tari Jurnal Cendekia Mengabdi Berinovasi dan Berkarya Jurnal Pertambangan dan Lingkungan MARAS : Jurnal Penelitian Multidisplin Society Jurnal Pemikiran dan Pengembangan Pembelajaran Jurnal Teknologi Sumberdaya Mineral
Rina Lestari
Program Studi Pendidikan Ekonomi Akuntansi FKIP Untan Pontianak
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Transportation

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KONSELING DENGAN PENDEKATAN RATIONAL EMOTIVE BEHAVIOR THERAPY UNTUK MENGATASI KEBIASAAN MEROKOK Lestari, Rina
Tarbawi : Jurnal Ilmu Pendidikan Vol 14 No 1 (2018): Volume 14 Nomor 1 Juli 2018
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan Institut Agama Islam Negeri (IAIN) Kerinci

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.793 KB) | DOI: 10.32939/tarbawi.v14i1.252

Abstract

Smoking is an act of waste and waste on property. The purpose of this study were to described: 1) smoking habits of students before giving Rational Emotive therapy? ; 2) student smoking habits after giving Rational Emotive therapy ?; and 3) the effectiveness of Rational Emotive counseling therapy in reducing students' smoking habits. This research was used pre test & post test design. The population in this research were all class X students of SMAN 3 Pekanbaru who had smoking habits with totaling 32 students. To determine the sample of this study, the researcher used purposive sampling. Then, through this technique, 5 students were used as the research sample. Besides, the data was analysed by using "t" test. Moreover,  the result of this research showed that: 1) before given emotive rational counseling therapy, students smoking habits are in the high category with an average score of 92.6 and an average percentage of 77.167%; 2) after given emotive rational counseling therapy have decreased,  students smoking habit are in the medium category with an average score of 66.8 and an average percentage of 55.667%; and 3) there is a significant difference between students' smoking habits before and have been given emotive rational counseling therapy that is equal to 4,691. This means that rational emotive counseling therapy is effective to reduce student smoking habits.
EVALUATING THE EFFICACY OF CITRONELLA ESSENTIAL OIL (Cymbopogon nardus) AS A CONTROL AGENT FOR WAREHOUSE RICE WEEVIL (Sitophilus oryzae) Hariani, Nova; Lestari, Rina; Zulfitri, Apriwi
Jurnal Pendidikan Matematika dan IPA Vol 15, No 3 (2024): September 2024
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jpmipa.v15i3.80589

Abstract

Sitophilus oryzae or rice weevil is a primary pest of rice that is very detrimental. Pest control that is usually carried out is fumigation using phosphine gas and fumigation using methyl bromide. The use of insecticides has several negative impacts on humans and the environment, so it is necessary to control pests naturally, namely using citronella essential oil. Citronella essential oil contains high levels of citronella and geraniol compounds and these compounds are contact toxic and antifeedant against insects. This research aims to determine the effect of citronella essential oil on mortality using the fumigation method and the response of rice lice to citronella essential oil in the flourdisc bioassay test. This research was carried out at the insect pest control and biodetriosation and formulation laboratory, using a completely randomized plan. The results showed that citronella oil was classified as effective in controlling the population of S. oryzae with a mortality of 41% using fumigation method and had anti-feedant properties compared to the control in the flour disk assay test. In the flourdisc bioassay method, the percentage of 2 gr/L influences the low relative growth rate, relative consumption rate and conversion efficiency of consumed food and the food prevention index continues to increase. Citronella essential oil has potential and effectiveness as a control for the warehouse pest rice weevil (Sitophilus oryzae).
Pengaruh Campuran Sekam Padi pada Briket Batubara Fachruzzaki, Fachruzzaki; Halim, Halim; Lestari, Rina
Geosapta Vol 8, No 1 (2022): Januari 2022
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jg.v8i1.10740

Abstract

Perusahaan tambang batubara banyak terdapat di Kabupaten Tanah Bumbu Provinsi Kalsel. Sisa pengolahan maupun pengujian batubara kebanyakan dibiarkan oleh perusahaan sehingga terbuang begitu saja. Batubara sisa ini bisa dimanfaatkan untuk dibuat briket. Namun seringkali briket batubara susah menyala dan menimbulkan banyak abu. Maka dari itu perlu penelitian dengan mencampurkannya dengan sekam padi. Sekam padi banyak didapatkan di daerah ini karena selain wilayah industri, juga terdapat wilayah pertanian yang cukup luas. Permasalahan yang ada yaitu sekam padi dan sisa batubara ini tidak banyak yang memanfaatkan sehingga penelitian ini sangat penting dilaksanakan untuk bisa menghasilkan bahan bakar energi alternatif. Metode penelitian yang digunakan yaitu kuantitatif ekperimental. Batubara dihaluskan hingga 18 mesh. Sekam padi dikarbonisasi hingga didapatkan arang sekam kemudian menjadi bahan pencampur batubara dalam pembuatan briket dengan perekat tepung tapioka. Hasil penelitian menunjukkan briket BT-01 dengan komposisi 75% batubara dan 25% sekam memiliki nilai kalor paling tinggi dan waktu menyala lebih panjang. Hasil penelitian ini sangat penting untuk menjadi bahan pertimbangan untuk pemanfaatan lebih lanjut untuk rumah tangga maupun industri mengengah
EXAMINING LOGICO-SEMANTIC RELATION IN INDONESIAN EFL STUDENTS’ WRITING IN SCHOOLING GENRES: SFL PERSPECTIVE Lestari, Rina
IJEE (INDONESIAN JOURNAL OF ENGLISH EDUCATION) IJEE (INDONESIAN JOURNAL OF ENGLISH EDUCATION)| VOL. 11 | NO. 2 | 2024
Publisher : Syarif Hidayatullah State Islamic University of Jakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/ijee.v11i2.36728

Abstract

Writing as a meaning-making is considered as a challenging task both for students and teachers, specifically related to the logical connection between clauses. Adopting Systemic Functional Linguistics (SFL) initiated by Halliday (1994) as framework, this qualitative study examined logical relations constructed in EFL students’ writings across four schooling genres; descriptive, argumentative, recount, and narrative texts to provide writing models for the EFL students and teachers in Indonesian context. The data comprised four high-achieving texts written by four ten graders of senior high school in West Java, Indonesia which were collected purposively based on their genre assessment conducted by the teacher. The collected data were sorted and categorized based on type and relation of the clauses. This textual analysis revealed that the four students employ complex clauses with different types of connections to express their ideas in a coherent and logical manner. The study also identified some weaknesses in the students’ writing that an SFL genre-based pedagogy could address. The study contributes to the understanding of the logico-semantic features of various academic genres in the Indonesian context and offers implications for EFL writing practitioners and scholars.
An Analysis of Mexican Culture “Dia De Los Muertos” in Coco Animation Film Lestari, Rina; Tiana, Delis Meta
British (Jurnal Bahasa dan Sastra Inggris) Vol 13, No 2 (2024): SEPTEMBER
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/british.13.2.100-119.2024

Abstract

This research explores the Mexican culture and how animation films can convey foreign traditions, such as "Dia De Los Muertos, or Day of the Dead," through a qualitative descriptive method. Data was collected from visual sources and references to analyze the Mexican culture in the Coco animation film. The study concluded that animated films can effectively introduce foreign cultures to viewers, and the portrayal of death in films does not always have to be associated with gloomy atmospheres. The research aims to provide insight into Mexican culture, Día de los Muertos, allowing viewers to celebrate and respect relatives who have passed away while also learning about the cultural values of the film. The findings suggest that animated films can be a valuable tool for introducing and promoting foreign cultures. Keywords: Mexican culture, Day of the Dead, animation.
POTENSI GALAM (Melaleuca cajuputi) SEBAGAI PESTISIDA NABATI DALAM MENEKAN SERANGAN Spodoptera frugiperda PADA TANAMAN JAGUNG MANIS (Zea mays saccharata Sturt) Pramudi, Muhammad Indar; Marsuni, Yusriadi; Salamiah, Salamiah; Lestari, Rina; Fikasari, Devaliana catria; Bersinar, Saras
J-PEN Borneo : Jurnal Ilmu Pertanian Vol 7, No 2 (2024)
Publisher : FAKULTAS PERTANIAN UNIVERSITAS BORNEO TARAKAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/jpen.v7i2.5959

Abstract

 Sporodptera frugiperda adalah hama yang menyerang tanaman jagung manis (Zea mays saccharata Sturt) penyebab rendahnya produksi jagung di Indonesia. Pengendalian yang ramah lingkungan dengan memanfaatkan senyawa metabolit sekunder pada tumbuhan rawa berupa galam. Tumbuhan galam mengandung senyawa toksik berupa polifenol, flavonoid, dan terpenoid. Tujuan dari penelitian ini adalah untuk mengetahui potensi daun galam sebagai pestisida alami untuk S. frugiperda. Penelitian dilaksanakan pada bulan November-Juli 2024 di Desa Bentok Darat, Kecamatan Bati-Bati, Kabupaten Tanah Laut. Metode penelitian ini menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 4 perlakuan dan 2 kontrol, yaitu G1 = Larutan daun galam 4%; G2 = Larutan daun galam 8%; G3 = Larutan daun galam 12%, G4 = Larutan daun galam 16%; K0 = Kontrol air dan; KS2= Konsentrasi lamda sihalotrin 1 ml/L yang diulang sebanyak 4 kali sehingga terdapat 24 unit percobaan. Pengamatan dilakukan 7 hari sekali untuk melihat pengaruh larutan daun galam terhadap kejadian serangan, intensitas serangan dan kerusakan tongkol jagung. Hasil dari penelitian ini menunjukkan bahwa larutan daun galam dengan konsentrasi 4%, 8%, 12%, dan 16% berpengaruh dalam menekan kejadian serangan, intensitas serangan dan kerusakan tongkol. Konsentrasi larutan 16% terbukti efektif menekan kejadian serangan sebesar (13,02%), intensitas serangan sebesar (1,36%) dan kerusakan tongkol (25%).
Determination Coal Mine Ultimate Pit Limit based on Kepmen ESDM No. 227.K/MB.01/MEM.B/2023 and PP 26 2022 Suparno, Fanteri Aji Dharma; Aminah, Siti; Haeruddin, Haeruddin; Lestari, Rina; Mulyani, Kurnia Dewi; Manek, Emanuel; Sulistyo Rini, Utari Retno
Journal of Earth and Marine Technology (JEMT) Vol 5, No 2 (2025)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2025.v5i2.7236

Abstract

Economic factors and variables from geological resource models affect ultimate pit limit (UPL). Coal selling price, overburden stripping cost, coal mining cost, and royalties are among the economic factors taken into account in UPL. PP 26 2022 and Kepmen 227.K/MB.01/MEM.B/2023 both control the benchmark coal selling price and royalties. It takes a lot of time to determine UPL utilizing the Lerchs Grossman (LG) algorithm. UPL optimization is now feasible by integrating mining modelling software's Structured Query Language (SQL). The goal of this study is to determine UPL by maximizing coal resources at the site using the help of SQL in LG algorithm, which can optimize pits efficiently, precisely, and economically while taking the most recent laws into account. The study investigates a coal mine in Sanga-sanga, East Kalimantan. The study entails examining data processing using secondary data that was gathered for the study. Using the break-even stripping ratio (BESR) analysis approach, mining limitations are chosen. The chosen incremental stripping ratio (ISR) of 12.88 is in close proximity to the $13.41/ton break-even stripping ratio (BESR). The grid OPT015 in the optimization grid contains the incremental stripping ratio (ISR) value and considered as the UPL for the coal mine.
Edukasi Pemilahan Dan Pemanfaatan Sampah Plastik Mustakim; Lestari, Ayu; Ari, Andi Mohammad; Ikhsan, Mohammad; Lestari, Rina; Fadel, Moh.; Wahiyudi; Patriani
Jurnal Cendekia Mengabdi Berinovasi dan Berkarya Vol 3 No 3 (2025): September
Publisher : Universitas Madako Tolitoli

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56630/jenaka.v3i3.908

Abstract

Untuk mengurangi dampak negatif sampah terhadap lingkungan, sangat penting untuk memberikan pendidikan tentang pemilahan dan pemanfaatan sampah plastik. Pelaksanaan pengabdian ini penting untuk dilakukan mengingat dampak sampah plastik yang ditimbulkan cukup banyak sehingga dibutuhkan solusi dalam mengurangi sampah plastik. Langkah awal pengabdian di lakukan sosialisasi terkait Edukasi tentang Klasifikasi Sampah Plastik, edukasi pemilahan sampah plastik ini guna memudahkan pengelolaan, dan praktik pemilahan langsung, demonstrasi pembuatan produk berguna dari sampah plastik Kegiatan ini dilaksanakan pada tangal 25 agustus 2024 di Desa Mulyasari Kecamatan Lampasio Kabupaten Tolitoli. Peserta yang terlibat yaitu ibu rumah tangga berjumlah 18 orang. Keterlibatan anak-anak usia sekolah untuk mengumpulkan sampah, total sampah plastik yang terkumpul sekitar 7 KG sampah platik terdiri dari gelas minuman plastik, dan botol minuman plastik dan sendok plastik bekas. Kegiatan pengabdian ini memberikan dampak secara langsung bagi kemampuan dan kesadaran masyarakat terkait limbah plastik yang tadinya dianggap menggangu dan tidak memiliki manfaat, hingga memiliki nilai ekonomi bagi masyarakat sekaligus menguragi jumlah sampah plastik yang terbuang.
Mengoptimalkan Platform Media Sosial untuk Mendorong Keterlibatan Aktif Masyarakat dalam Mengatasi Perubahan Iklim dan Pelestarian Lingkungan Lestari, Rina; Nurmandi, Achmad; Younus, Muhammad; Lawelai, Herman; Suardi, Wahdania
Society Vol 13 No 1 (2025): Society
Publisher : Laboratorium Rekayasa Sosial, Jurusan Sosiologi, FISIP Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/society.v13i1.742

Abstract

This research aims to optimize social media platforms to foster active public engagement in tackling climate change and environmental conservation. Social media enables rapid and widespread dissemination of information, creates space for public discussion, and encourages collective action on environmental issues. In this study, researchers applied a qualitative method with a systematic literature review approach, using bibliometric analysis using the Scopus database. The analysis results show a significant increase in publications related to this topic from 2019 to 2024, reflecting the important role of social media in climate change mitigation efforts. With interactive features such as hashtags and online campaigns, social media strengthens awareness and collaboration across communities, governments, and the private sector. In addition, social media plays a role in building digital communities that support each other in promoting environmentally friendly behaviors. The study also highlights the importance of managing accurate information to avoid disinformation and maximize the positive impact of digital platforms on sustainable environmental policy advocacy.
Prediksi Harga Emas Tahun 2024-2025 Dengan Metode Autoregressive Moving Average (ARIMA) Pada Aplikasi RStudio Lestari, Rina; Jayanti, Lina Dwi; Suparno, Fanteri Aji D
Jurnal Pertambangan dan Lingkungan Vol 6, No 1 (2025): Juni 2025
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpl.v1i1.29500

Abstract

Peningkatan harga emas di Indonesia mencerminkan pentingnya prediksi harga emas sebagai dasar pengambilan keputusan berinvestasi yang lebih baik. Penelitian ini bertujuan untuk memprediksi harga emas di Indonesia untuk periode 2024-2025 menggunakan metode autoregressive integrated moving average (ARIMA) melalui aplikasi rstudio. Data yang digunakan berupa data harga emas bulanan periode januari 2018 hingga desember 2023. Pemilihan model terbaik dipilih berdasarkan kriteria nilai terkecil AIC, BIC, MAPE, MAE, dan RMSE. Hasil penelitian ini menunjukkan bahwa model ARIMA (0,1,1) merupakan model terbaik untuk memprediksi harga emas dengan tingkat akurasi yang memadai. Nilai MAPE sebesar 11,63 menunjukkan rata-rata kesalahan prediksi yang dapat diterima. Hasil prediksi menunjukkan bahwa setiap bulannya harga emas mengalami kenaikan yang konsisten selama periode pengamatan. Hal ini ditunjukkan oleh nilai harga emas pada bulan September 2024 sebesar Rp 1.493.022 terus mengalami kenaikan hingga 0,64% dan berhasil memperoleh nilai sebesar Rp 1.598.647 pada bulan Agustus 2025. Meskipun model ini tidak mempertimbangkan faktor eksternal seperti inflasi, nilai tukar mata uang, dan suku bunga, prediksi tetap memberikan informasi yang bermanfaat bagi investor. Kesimpulan pada penelitian ini menunjukkan bahwa model ARIMA (0,1,1) efektif untuk peramalan harga emas berdasarkan data historis, memberikan manfaat dalam pengambilan keputusan investasi.
Co-Authors - Afrizal Achmad Nurmandi Ari, Andi Mohammad AYU LESTARI Bersinar, Saras Delis Meta Tiana Emanuel G. Manek Fachruzzaki, Fachruzzaki Fadel, Moh. Fanteri Aji Dharma Suparno Fatmasari , Elly Fikasari, Devaliana catria Haeruddin Haeruddin Halim Halim, Halim Herman Lawelai Iskandar Iskandar Iskandar Muda Jayanti, Lina Dwi Kurnia Dewi Mulyani Marsuni, Yusriadi Mohammad Ikhsan, Mohammad Muhammad Indar Pramudi Mustakim Mustakim Nova Hariani Patriani Salamiah . Siti Aminah Suardi, Wahdania Utari Retno Sulistyo Rini Wahiyudi Younus, Muhammad Zulfitri, Apriwi