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All Journal Jurnal Fitopatologi Indonesia Kontinu: Jurnal Penelitian Didaktik Matematika Limits: Journal of Mathematics and Its Applications Jurnal Matematika UNAND APTEK Jurnal Ilmiah Wahana Pendidikan PUCUK : Jurnal Ilmu Tanaman Prosiding Konferensi Nasional PKM-CSR Sungkai STATISTIKA Al-Gafari: Manajemen dan Pendidikan Al-Faiza: Journal of Islamic Education Studies Al-Faizi : Hukum, Politik dan Bisnis International Conference on Digital Advanced Tourism, Management, and Technology Limits: Journal of Mathematics and Its Applications

Yuliana Susanti

Unknown Affiliation

Author-ID : 2834870

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Perbandingan Model Regresi Robust Estimasi M Dan Estimasi Least Trimmed Squares (LTS) Pada Jumlah Kasus Tuberkulosis Di Indonesia Dina Rohmah; Yuliana Susanti; Etik Zukhronah
JURNAL PENDIDIKAN MATEMATIKA Vol 4, No 2: November 2020
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/kontinu.4.2.136-146

Model Regresi Linear Produksi Padi di Indonesia dengan Estimasi-M Hasih Pratiwi; Yuliana Susanti; Monaluvy Septiningrum
Limits: Journal of Mathematics and Its Applications Vol 4, No 1 (2007)
Publisher : Institut Teknologi Sepuluh Nopember

Policy of the price of main food is one of important instrument in creating resilience of national food. Remembering the importance of accomplishment e®ort of requirement of food, especially paddy, it is required an e®ort to predict production in future. There are some methods which are applicable to predict the production of paddy and to investigate the factors in°uencing it; one of them is regression analysis. An estimation method which is applicable to determine the regression model is M-estimation. This estimation is an extension of maximum likelihood method and robust estimation, where its estimation value is not in°uenced by small change in data. The purpose ofthis research is to determine the regression model to predict the production of paddy in Indonesia using estimation M.Based on the result of research we conclude that the prediction model for production of paddy in Indonesia with M-estimation isby = ¡92; 790 + 5; 02x1 + 6; 37x2:The increment of one hectare farm wide and one ton seed will increase production of paddy 5.03 tons and 6.23 tons respectively. The regression parameter signi¯cance test shows that the farm wide in°uences the production of paddy signi¯cantly.

MODEL OUTPUT STATISTICS DENGAN PRINCIPAL COMPONENT REGRESSION, PARTIAL LEAST SQUARE REGRESSION, DAN RIDGE REGRESSION UNTUK KALIBRASI PRAKIRAAN CUACA JANGKA PENDEK NISWATUL QONA’AH; HASIH PRATIWI; YULIANA SUSANTI
Jurnal Matematika UNAND Vol 10, No 3 (2021)
Publisher : Jurusan Matematika FMIPA Universitas Andalas Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jmu.10.3.355-368.2021

Penelitian ini merupakan upaya pengembangan Model Output Statistics (MOS) yang akan digunakan sebagai alat kalibrasi prakiraan cuaca jangka pendek. Informasi mengenai prakiraan cuaca yang akurat diharapkan dapat meminimalkan risiko kecelakaan yang disebabkan oleh cuaca, khususnya dalam bidang transportasi udara dan laut. Metode yang akan dikembangkan mencakup beberapa stasiun pengamatan cuaca di Indonesia. MOS merupakan sebuah metode berbasis regresi yang mengoptimalkan hubungan antara observasi cuaca dan luaran model Numerical Weather Predictor (NWP). Beberapa masalah yang muncul kaitannya dengan MOS adalah; mereduksi dimensi luaran NWP, mendapatkan variabel prediktor yang mampu menjelaskan variabilitas variabel respon, dan menentukan metode statistik yang sesuai dengan karakteristik data, sehingga dapat menggambarkan hubungan antara variabel respon dan variabel prediktor. Tujuan dari penelitian ini yaitu untuk mendapatkan pemodelan MOS yang sesuai untuk variabel respon suhu maksimum, suhu minimum, dan kelembapan udara. Metode regresi yang digunakan adalah Principal Component Regression (PCR), Partial Least Square Regression (PLSR), dan ridge regression. Selanjutnya, model MOS yang terbentuk divalidasi dengan kriteria Root Mean Square Error (RMSE) dan Percentage Improval (IM%). MOS mampu mengoreksi bias prakiraan NWP hingga lebih dari 50%. Berdasarkan RMSE terkecil pada penelitian ini, suhu maksimum lebih akurat diprakirakan menggunakan model PLSR, sementara suhu minimum dan kelembapan udara lebih akurat diprakirakan menggunakan ridge regression.Kata Kunci: cuaca, MOS, NWP.

Pemanfaatan Excel untuk Analisis dan Visualisasi Data Kesehatan Masyarakat Kabupaten Sukoharjo Kiki Ferawati; Muhammad Bayu Nirwana; Hasih Pratiwi; Sri Sulistijowati Handajani; Respatiwulan Respatiwulan; Yuliana Susanti; Niswatul Qona’ah
Prosiding Konferensi Nasional Pengabdian Kepada Masyarakat dan Corporate Social Responsibility (PKM-CSR) Vol 4 (2021): Peran Perguruan Tinggi dan Dunia Usaha dalam Mewujudkan Pemulihan dan Resiliensi Masya
Publisher : Asosiasi Sinergi Pengabdi dan Pemberdaya Indonesia (ASPPI)

Pemanfaatan data sebagai alat untuk memahami kondisi lingkungan dan kesehatan di wilayah merupakan hal yang harus dikembangkan di era informasi saat ini. Pengetahuan mengenai pengolahan data juga perlu dikembangkan oleh semua kalangan. Sebagai salah satu sekolah negeri yang terletak di Mojolaban, Sukoharjo, guru dan siswa SMPN 1 Mojolaban merupakan bagian dari masyarakat yang memerlukan pengetahuan tentang analisis dan visualisasi data. Profil kesehatan Kabupaten Sukoharjo yang diterbitkan oleh Dinas Kesehatan merupakan salah satu sumber informasi kesehatan yang dari tahun ke tahun dapat diakses oleh publik. Visualisasi data merupakan salah satu metode penyampaian informasi yang dipelajari dalam statistika. Pelatihan Excel yang diberikan bertujuan untuk memberikan pemahaman terkait penerapan metode statistika dengan Excel serta visualisasinya agar masyarakat dapat lebih memahami tentang kondisi kesehatan di wilayah Kabupaten Sukoharjo. Materi yang dibahas meliputi pengorganisasian data, statistik deskriptif, analisis regresi, pivot, pengenalan chart dan pembuatan dasbor. Hasil dari pelatihan yang diberikan, peserta pelatihan mampu membuat dasbor berisikan diagram yang menampilkan kondisi kesehatan dasar di Sukoharjo.

Effectiveness of Endophytic Bacteria and Arbuscular Mycorrhizal Fungi in Suppressing Ralstonia solanacearum in Eucalyptus pellita Plants Yuliana Susanti; Giyanto Giyanto; Meity Suradji Sinaga; Kikin Hamzah Mutaqin; Budi Tjahjono
Jurnal Fitopatologi Indonesia Vol 16 No 4 (2020)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.16.4.166-176

Penyakit layu bakteri yang disebabkan oleh Ralstonia solanacearum merupakan salah satu penyakit penting pada tanaman eukaliptus (Eucalyptus pellita) di Indonesia. Salah satu pendekatan teknik pengendalian adalah melalui pemanfaatan bakteri endofit dan fungi mikoriza arbuskula (FMA). Penelitian ini ditujukan untuk mengevaluasi keefektifan bakteri endofit dan FMA dalam menekan perkembangan penyakit layu bakteri. Terdapat sepuluh kombinasi bakteri endofit dan FMA yang di-ujikan pada bibit eukaliptus berumur satu bulan. Inokulasi R. solanacearum secara buatan dilakukan tiga bulan setelah introduksi bakteri endofit dan FMA. Percobaan dilakukan di ruang growth chamber. Peubah pengamatan meliputi periode inkubasi, insidensi penyakit, laju penyakit, agresivitas kolonisasi bakteri dengan mengamati cairan bakteri (ooze) R. solanacearum pada bibit eukaliptus, pengukuran aktivitas phenylalanine ammonia lyase (PAL), dan total fenol. Hasil penelitian menunjukkan bahwa perlakuan B5F1 (Paenibacillus polymyxa dan Glomus mosseae) memiliki kemampuan penekanan tertinggi terhadap perkembangan penyakit layu bakteri pada bibit eukaliptus, yaitu sebesar 100%. Perlakuan B5F1 menunjukkan periode inkubasi R. solanacearum lebih lama, persentase insidensi penyakit paling rendah, laju infeksi penyakit rendah, dan penghambatan agresivitas kolonisasi R. solanacearum pada eukaliptus. Sementara perlakuan B4F1 (Serratia marcescens dan G. mosseae) mampu meningkatkan aktivitas PAL dan total fenol tertinggi dibandingkan perlakuan lainnya. Berdasarkan hasil penelitian ini, perlakuan B5F1 dan B4F1 berpotensi mengendalikan penyakit layu bakteri pada tanaman eukaliptus.

Aplikasi Kompos Titonia dan Limbah Cair Sabut Kelapa Muda Dalam Meningkatkan Pertumbuhan Tanaman Tomat (Lycopersicum esculentum Mill.) Khusnu Abdillah Siregar; Lufita Nur Alfiah; Al Muzafri; Yuliana Susanti; Edward Bahar
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 24 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Application of Titonia Compost and Young Coconut Coir Liquid Waste to Increase Growth and Production of Tomato (Lycopersicum esculentum Mill.) This research was conducted at the Experimental Garden of the Faculty of Agriculture, University of Pasir Pengaraian, Rokan Hulu Regency. The time of this research will be carried out for three months starting from September 2022 to November 2022. The purpose of this research is to determine the main and interaction effect of titonia compost and young coconut coir liquid waste in increasing the growth of stevia plants in a sustainable manner. This study used a factorial completely randomized design (CRD) consisting of two factors. The first factor was titonia compost (T) consisting of 4 levels namely 0, 0.5 kg/plot, 1 kg/plot, 1.5 kg/plot and the second factor was young coconut coir liquid waste (S) consisting of 4 levels namely 0.100 ml/plant, 200 ml/plant, 300 ml/plant to obtain 16 treatment combinations with 3 replications. The parameters observed were harvesting age, number of branches, number of leaves, fresh weight of leaves and dry weight of leaves. The data were analyzed statistically and followed by the Honest Significant Difference Test (SJD) at the 5% level. The results showed that the interaction of Titonia Compost and Young Coconut Coir Liquid Waste was significant for plant height, age of flowering and fruit weight of the plants, and did not give a real response to, harvesting age, number of fruit planted, fruit weight per fruit. The best treatment was found in the combination of Titonia Compost 1.5 kg/plot and Young Coconut Coir Liquid Waste 300 ml/Tan (T3S3). The main effect of titonia compost was significant on all observed parameters with the best treatment dose of 1.5 kg/plot. The main effect of young coconut coir liquid waste is significant on all observation parameters with the best treatment of 300 ml/plant

Trial of Utilization of Biogas from Palm Oil Mill Effluent on Household Gas Burner Purwo Subekti; Defidelwina; Ikhsan Gunawan; Heffi Christya Rahayu; Pada Lumba; Yuliana Susanti; Laily Fitriana; Budi Irwansyah; Januar Kaswari
Aptek Jurnal Apliksai Teknologi (APTEK): Volume 15, No. 02, Juni 2023
Publisher : Fakultas Teknik Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/aptek.v15i2.1933

The utilization of biogas produced from the liquid left over from palm oil mill enffluent (POME) needs to be increased, so far the use of biogas from POME for large-scale is new for the purpose of fueling power plant generators (PLTBg). Another increase in the use of biogas is among others as fuel for household-scale gas burner. The trial was carried out by utilizing biogas from the PLTBg purification unit and modifying commercial gas burner. Based on the results of trials, the flame produced is blue and can be used for cooking as the color of the fire from a stove that uses commercial gas. These results prove that apart from being PLTBg fuel, biogas from POME can be used as fuel for domestic purposes and possibly as fuel for other purposes.

Pengaruh Model Pembelajaran Langsung Terhadap Hasil Belajar Siswa Pada Mata Pelajaran IPS Kelas VIII di SMP Negeri 1 Jerowaru Yuliana Susanti
Al-Faizi : Jurnal Politik, Hukum dan Bisnis Vol. 2 No. 2 (2024): NOVEMBER
Publisher : Lembaga Pendidikan Al-Gafari

Show Abstract | Download Original | Original Source | Check in Google Scholar

The problem of education cannot be separated from human life at all. Education for human life is an absolute life that must be fulfilled throughout life. Without education, a group of people will find it difficult to live and develop in line with their ideals to progress. This study aims to determine the effect of direct learning models on student learning outcomes in social studies subjects for class VIII at SMP Negeri 1 Jerowaru. This study uses an experimental method. Data collection techniques use documentation and tests. Sampling was carried out using the cluster random sampling technique, namely taking two classes randomly and placing class VIIID as the experimental class and class VIIIE as the control class, the experimental group was given the application of direct learning while the control class was not given the application of the direct learning model. Student learning outcome data was obtained using a test. The data collected was then analyzed using statistical analysis techniques, the formula used was the t-test formula. Based on the results of data analysis, the t count was obtained as much as 1.692 and the t table value at a significant level of 5% with db = 27 + 27 – 2 = 52 was 1.671, this shows that the t count is greater than the t table (1.692 > 1.671). Thus, it can be concluded that the direct learning model has an effect on student learning outcomes in the subject of social studies in class VIII at SMP Negeri 1 Jerowaru.

EKSPLORASI DAN KARAKTERISASI PLASMA NUTFAH TANAMAN MANGGIS (Garcinia mangostana L.) DI KECAMATAN UJUNG BATU ROKAN HULU Riswandi, Riswandi; Muhammad Alfatih; Edward Bahar; Yuliana Susanti
PUCUK : Jurnal Ilmu Tanaman Vol 4 No 2 (2024): Desember
Publisher : Fakultas Pertanian Universitas Ratu Samban

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/pucuk.v4i2.330

Penelitian ini berjudul Eksplorasi dan Karakterisasi Plasma Nutfah Tanaman Manggis (Garcinia mangostana L.) bertujuan untuk mengetahui tingkat keragaman dan karakteristik dari morfologi tanaman manggis di Kecamatan Ujung Batu Rokan Hulu. Metode yang digunakan dalam penelitian ini adalah metode observasi deskriptif yaitu: mengeksplorasi dan karakterisasi tanaman manggis. Penentuan lokasi penelitian dilakukan melalui kegiatan survei pendahuluan. Informasi diperoleh dari masyarakat sekitar dan pencarian langsung ke lapangan. Pengambilan data sampel pada lokasi terpilih dilakukan secara langsung terhadap tanaman manggis. Pengisian kuisioner serta wawancara dengan masyarakat dilakukan di lokasi pengambilan sampel. Kriteria tanaman yang dijadikan sampel yaitu tanaman yang telah berada di fase generatif. Hasil penelitian menunjukkan bahwa Karakteristik dalam morfologi tanaman manggis di Kecamatan Ujung Batu, Rokan Hulu memiliki variasi yang beragam pada karakternya dan tetap mencirikan karakter morfologi dari tanaman manggis. Tingkat keragaman morfologi tanaman manggis secara kuantitatif tergolong luas pada parameter pengamatan panjang daun, panjang putik, panjang buah, diameter buah, dan bobot buah. Tingkat kemiripan berdasarkan 14 parameter pengamatan kualitatif pada tanaman manggis di Kecamatan Ujung Batu, Rokan Hulu menyebar pada koefisien 73%. Tingkat kemiripan pada nilai koefisien 100% membentuk 9 pasang aksesi.

Strategi Guru dalam Meningkatkan Motivasi Belajar Siswa Kelas II MI NW Tampih: Teacher Strategies in Improving Student Learning Motivation in Class II MI NW Tampih Yuliana Susanti
Al-Faiza : Journal of Islamic Education Studies Vol. 3 No. 1 (2025): MARET
Publisher : Lembaga Pendidikan Al-Gafari

Show Abstract | Download Original | Original Source | Check in Google Scholar

Strategy is a plan that contains a series of activities designed to achieve educational goals. The problem in this study is how a teacher can increase student motivation. The above can be understood first if the learning is delivered in a super serious way. This study aims to determine the teacher's strategy in managing class II MI NW Tampih. The type of research used is qualitative descriptive research, data is obtained by conducting observations, interviews and documentation. The validity of the researcher's data uses triangulation techniques. Data analysis is carried out in four stages, namely: data collection, data reduction, data presentation, and drawing conclusions. The results of this study indicate that how a teacher's strategy in providing student learning motivation in class is an effort made by the teacher to help create optimal conditions. Classroom management is an art or work practice where teachers work individually or through others to optimize class resources for the creation of an effective and efficient learning process, as well as effective methods carried out by a teacher so that the learning process is not boring.

Co-Authors Abdullah Al Muzafri Aslamiah, Suhaibatul Budi Irwansyah Budi Tjahjono Defidelwina Dina Rohmah Edward Bahar Fadlila Nurwanda hasih pratiwi Husni Zakiah Ikhsan Gunawan Irwan Hadi Januar Kaswari Khusnu Abdillah Siregar Kiki Ferawati Kikin H Mutaqin Laily Fitriana Laksono Trisnantoro Lufita Nur Alfiah Luqyana Zakiya Almas MEITY SURADJI SINAGA Monaluvy Septiningrum Muhammad Alfatih Muhammad Bayu Nirwana NISWATUL QONA’AH Pada Lumba Purwo Subekti Respatiwulan Respatiwulan Riswandi Riswandi Sri Sulistijowati Handajani Syarifatul Munawarah Wahyudi, Tino Winita Sulandari Zakya Reyhana Zukhronah, Etik

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