Claim Missing Document
Check
Articles

Found 12 Documents
Search

Simulation Study and Development of Semiparametric Multiresponse Multigroup Truncated Spline Regression for Rice Pest Control Azizah, Laila Nur; Fernandes, Adji Achmad Rinaldo; Wardhani, Ni Wayan Surya
CAUCHY: Jurnal Matematika Murni dan Aplikasi Vol 10, No 1 (2025): CAUCHY: JURNAL MATEMATIKA MURNI DAN APLIKASI
Publisher : Mathematics Department, Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/cauchy.v10i1.29773

Abstract

Rice pest control is a critical challenge in the agricultural sector that requires a deep understanding of rice pest management. Regression analysis is a statistical method capable of describing and predicting cause-and-effect relationships between individuals. In real-life applications, not all relationships exhibit a known curve pattern, and non-identifiable curve forms are often observed. Additionally, a single cause may affect more than one outcome, and the outcomes themselves can have interrelationships. Such relationships can be approached through a multi-response semiparametric regression using a truncated spline multi-group model. This study aims to develop a multi-response semiparametric multi-group regression model using the truncated spline approach to understand the variables influencing rice pest control under light and dark conditions. This model is applied to secondary and simulated data with various scenarios to determine the best model. The study results indicate that the optimal model for secondary data is a semiparametric regression model with a linear order and a single knot point, achieving a determination coefficient of 89.17%. Simulation results show that the scenario 1 model (linear with a single knot point) produces a high determination coefficient. This multi-response regression model proves more optimal when error variance and multicollinearity levels are kept low to moderate.
Zero Waste-Based Organic and Non-Organic Waste Sorting Education Prodyanatasari, Arshy; Diasandy, Deva Raka Satria; Azizah, Laila Nur; Izati, Lufia Elen Ayu; Hidayat, Abdullah Farikh
Room of Civil Society Development Vol. 3 No. 3 (2024): Room of Civil Society Development
Publisher : Lembaga Riset dan Inovasi Masyarakat Madani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59110/rcsd.347

Abstract

Waste is generated from the activities of living organisms and is divided into organic, inorganic, and hazardous categories. Proper disposal of waste is crucial for minimizing environmental pollution. One effective approach is educating people about Zero Waste principles and implementing the 3Rs: reduce, reuse, and recycle. This activity involved repurposing mineral water gallons as bins for organic and inorganic waste. The PkM activity took place at SD YBPK Kota Kediri on April 26, 2024, targeting all students from grades I to VI, totaling 70 participants. The PkM was conducted using the Participatory Action Research (PAR) method and work performance evaluations. The outcomes of this PkM activity included increased knowledge among participants about identifying organic and inorganic waste, as well as heightened awareness of proper waste disposal according to waste classification.