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All Journal Al-Ta'dib: Jurnal Kajian Ilmu Kependidikan Mathematics and Applications (MAp) Journal Robust: Research of Business and Economics Studies Educalitra: English Education, Linguistics, and Literature Journal
Santri, Dewi
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Religion Humanities Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Mathematics Social Sciences

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PEMODELAN STATISTICAL DOWNSCALING REGRESI KUANTIL LASSO DAN ANALISIS KOMPONEN UTAMA UNTUK PENDUGAAN CURAH HUJAN EKSTRIM Santri, Dewi; Hanike, Yusrianti
MAp (Mathematics and Applications) Journal Vol 2, No 1 (2020)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1152.01 KB) | DOI: 10.15548/map.v2i1.1639

Abstract

Curah hujan ekstrim yang sering terjadi di Indonesia menimbulkan berbagai dampak negatif bagi masyarakat. Terdapat banyak pemodelan curah hujan yang telah dilakukan untuk meminimumkan dampak yang terjadi. Global circulation model (GCM) diyakini menjadi metode terbaik untuk meramalkan data curah hujan ekstrim. Kelemahan dari data GCM adalah masih bersifat global sehingga akan sulit untuk menjelaskan keragaman dalam skala lokal yang lebih rinci. Statistical Downscaling (SD) hadir untuk menangani permasalahan tersebut. SD menghubungkan antara data luaran GCM dan curah hujan untuk menduga perubahan pada skala lokal dengan menggunakan metode regresi. Untuk mengakap nilai ekstrim dari curah hujan maka digunakan metode regresi kuantil. Data luaran GCM yang memiliki multikolinearitas tidak dapat langsung diterapkan dalam model SD. Metode-metode yang dapat digunakan untuk mengatasi masalah multikolinearitas dalam SD antara lain metode analisis komponen utama (AKU) dan metode shrinkage seperti Least Absolute Shrinkage and Selection Operator (LASSO). Metode AKU paling sering digunakan dalam mereduksi dimensi data luaran GCM dan menangani masalah multikolinearitas. Metode shringkage selain dapat menghilangkan multikolinearitas juga dapat meminimumkan ragam penduga parameter dari model regresi. Tujuan penelitian ini adalah  menentukan model curah hujan ekstrim di Kabupaten Indramayu dengan pendekatan SD menggunakan metode regresi kuantil dengan LASSO dan AKU serta memilih model SD terbaik dari kedua metode yang digunakan tersebut. Hasil penelitian menunjukkan bahwa dugaan curah hujan ekstrim di kabupaten Indramayu dengan model SD menggunakan regresi kuantil dengan LASSO menghasilkan prediksi yang lebih konsisten terhadap berbagai selang waktu dugaan dibandingkan model yang menggunakan metode AKU.AbstractExtreme rainfall that frequently occurs in Indonesia has negative impact to society. there are several methods that required to minimize the damage that may occur. So far, Global circulation models (GCM) are the best method to forecast global climate changes include extreme rainfall. GCM data has global scale and unable to provide reliable information at local scale. Statistical Downscaling (SD) has been developed in an attempt to bridge this scale gap. SD uses regression models to represent the link between GCM data and local rainfall. Quantile regression is used to catch the extreme rainfall.  GCM data which has multicolinearity can not be directly applied in SD model. The methods that can be used to overcome multicollinearity are principal component analysis (PCA) and shrinkage methods such as Least Absolute Shrinkage and Selection Operator (LASSO) and ridge. PCA is the most commonly used in SD modeling. PCA can reduce the dimension of GCM data and multicollinearity. Shringkage method can eliminate multicolinearity and minimize variance. The objectives of this study are modeling SD using quantile regression with LASSO and PCA to predict extreme rainfall in Indramayu and to choose the best SD model of  both methods. The result shows that the prediction of extreme rainfall in Indramayu with SD models using quantile regression with LASSO is more consistent at any time prediction compared to models using PCA.
Teachers’ Perception and Practices of Intercultural Communicative Competence Integration in EFL Classroom: A Systematic Literature Review Nafisah, Shofia; Oktarina, Ika; Santri, Dewi; Suwartono, Tono
Educalitra: English Education, Linguistics, and Literature Journal Vol. 3 No. 1 (2024)
Publisher : English Language Education Study Program, Faculty of Social, Economics, and Humanities, University of Nahdlatul Ulama Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.10596576

Abstract

Intercultural communicative competence stands as a cornerstone in modern English as a Foreign Language education, playing a pivotal role in nurturing learners' abilities to navigate diverse cultural landscapes. This systematic review meticulously examines the perspectives and practices of EFL educators in integrating intercultural communicative competence into language teaching, drawing insights from a comprehensive analysis of diverse studies across global contexts, the systematic review methodology of Gough and Newman’s way employed. The findings underscore a discrepancy between teachers' positive perceptions and practices in integrating intercultural communicative competence into the EFL classroom. Besides, the researchers highlight the responsibility of educators in fostering inclusive learning environments that empower learners with the indispensable skills for successful cross-cultural communication in an interconnected world.
Intervensi Pasca Trauma pada Anak Korban Kekerasan Seksual di Indonesia Mu’min, Sitti Aisyah; Santri, Dewi; Susilowati, Tasya
Al-TA'DIB: Jurnal Kajian Ilmu Kependidikan Volume 16 Nomor 2 2023
Publisher : Institut Agama Islam Negeri Kendari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31332/atdbwv16i2.9751

Abstract

Violence against children is an intentional act that causes emotional and physical harm. Recovery and services for child victims of sexual violence often focus on legal and health interventions, neglecting social and psychosocial recovery. This research analyzes the form of intervention for child victims of sexual violence in Kendari's official institutions. It employs a qualitative descriptive method, emphasizing the natural character of the data without using calculations. The research reveals a high and increasing incidence of child sexual violence in Kendari, affecting all sub-districts. In response, the Kendari city government has issued regional regulations to protect children. The research highlights the need for psychosocial interventions for traumatized children. These interventions include: 1) Psychosocial Assistance, addressing the psychological and social conditions of affected children; 2) Counseling and Therapy, providing immediate attention to prevent worsening psychological burdens; 3) Support by UPTP2A Kendari, helping children resume their activities after receiving psychosocial services, counseling, and therapy.
Analisis Pengaruh Labelisasi Halal dan Promosi terhadap Harga dan Minat Beli Kosmetik di Kota Kendari Santri, Dewi; Miftah, Miftah
Robust: Research of Business and Economics Studies Vol. 3 No. 1 (2023): April 2023
Publisher : IAIN Kendari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31332/robust.v3i1.6077

Abstract

AbstractThe public's interest in using cosmetics has been on the rise, coinciding with the increasing number of beauty products manufacturers offer. Several factors influence the intention to purchase cosmetics, including the quality and price of the products. Halal labeling should be one of the significant factors influencing the purchasing decisions of beauty products for the Muslim population in Indonesia. This study aims to determine the impact of halal labeling and promotion's impact on consumers' prices and purchasing intention for cosmetic products in Kendari. The study's population comprises consumers shopping at Beauty Kendari, with a sample size of 100. Data analysis was conducted using Structural Equation Modeling (SEM) through the AMOS program. The research findings show that halal labeling significantly affects the price of cosmetic products at Beauty Kendari. Promotion also significantly impacts the price of cosmetic products at Beauty Kendari. Price significantly influences the purchasing intention of cosmetic products at Beauty Kendari. Halal labeling does not directly affect the consumers' intention to purchase cosmetics, but it exerts an indirect influence through the price as a mediating variable. Promotion significantly impacts purchasing intention directly and indirectly through the price as a mediating variable.AbstrakMinat masyarakat terhadap penggunaan kosmetik mekin meningkat seiring dengan banyaknya produk kecantikan yang ditawarkan oleh para produsen. Terdapat beberapa faktor yang memepengaruhi minat beli kosmetik diantaranya mutu kosmetik dan harga. Labelisasi halal seharusnya menjadi salah satu faktor yang cukup berpengaruh atas keputusan pembelian sebuah produk kecantikan oleh masyarakat muslim Indonesia. Penelitian ini bertujuan untuk mengetahui pengaruh labelisasi halal dan promosi terhadap harga dan minat beli konsumen pada produk kosmetik di Kendari. Populasi dalam penelitian ini konsumen yang berbelanja di Beauty Kendari dan sampel yang digunakan sebanyak 100. Analisis data yang digunakan yaitu menggunakan metode analisis SEM (Structural Equation Modeling) atau model persamaan struktural dengan  program AMOS. Hasil penelitian labelisasi halal berpengaruh signifikan terhadap harga produk kosmetik di Beauty Kendari. Promosi berpengaruh signifikan terhadap harga produk kosmetik di Beauty Kendari. Harga berpengaruh signifikan terhadap minat beli pada produk kosmetik di Beauty Kendari. Labelisasi halal secara langsung tidak berpengaruh terhadap minat beli konsumen kosmetik akan tetapi memiliki pengaruh yang tidak langsung dengan harga sebagai variabel perantara. Promosi memiliki pengaruh yang signifikan terhadap minat beli baik secar alangusng maupun secara tidak langusng dengan harga sebagai variabel perantara.
Pengaruh Jumlah Agkatan Kerja Dan Pertumbuhan Ekonomi Terhadap Tingkat Pengangguran Terdidik Di Sulawesi Tenggara Santri, Dewi; Sari, Kiki Novita; Octaviana, Nur Alfira
Robust: Research of Business and Economics Studies Vol. 4 No. 1 (2024): April 2024
Publisher : IAIN Kendari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31332/robust.v4i1.9008

Abstract

Educated unemployment has always been a complex problem that requires serious handling by the government. It is necessary to know what factors influence the level of educated unemployment in Indonesia to make it easier for the government to handle it. Some literature states that the size of the workforce and economic growth also influence the unemployment rate. This research aims to analyze the influence of the size of the workforce and economic growth on the level of educated unemployment in Southeast Sulawesi. The research was carried out using multiple linear regression analysis using data from 2012 to 2021. The results of the research show that the two variables, both the number of the workforce and economic growth, do not have a significant effect on educated unemployment in Southeast Sulawesi. The increase in the workforce in Southeast Sulawesi does not affect the unemployment rate. And the level of economic growth represented by GRDP does not necessarily reduce the number of unemployed significantly.
Co-Authors Hanike, Yusrianti Miftah Miftah, Miftah Mu’min, Sitti Aisyah Nafisah, Shofia Octaviana, Nur Alfira Oktarina, Ika Sari, Kiki Novita Susilowati, Tasya Tono Suwartono