R Research Papers

Seemingly unrelated time series model for forecasting the peak and short-term electricity demand: Evidence from the Kalman filtered Monte Carlo method

In this extant paper, a multivariate time series model using the seemingly unrelated times series equation (SUTSE) framework is proposed to forecast the peak and short-term electricity demand using time series data from February 2, 2014, to...

An artificial neural network-based model for predicting paratransit travel time

The nature of paratransit services makes for increased uncertainty in trip time, leading to reported unreliability and dissatisfaction by the users. While providing travel information has proved helpful in formal bus services and has been r...

Ozonation, electrochemical, and biological methods for the remediation of malachite green dye wastewaters: A mini review

The extensive usage of malachite green (MG) dyes in the fish and dye industries cause serious water pollution, leading to catastrophic effects on living organisms and the environment. In addressing the challenges of health risks related to ...

Darboux operators for linear first-order multi-component equations in arbitrary dimensions

How to measure consumer's inconsistency in sensory testing?

Consumer sensory testing is the basis for determining directions of product development in the food industry. However, while compliance assessment by trained and expert assessors is well developed, few information is available on testing co...

BUGSnet: an R package to facilitate the conduct and reporting of Bayesian network Meta-analyses

Abstract Background Several reviews have noted shortcomings regarding the quality and reporting of network meta-analyses (NMAs). We suspect that this issue may be partially attributable to limitations in current NMA software which do not re...

Longevity risk—Its financial impact on pensions

We study the financial impact of longevity risk on defined benefit (DB) pension plan liabilities using the 2010 Ghana population census, and the Lee-Carter model. We compare the usual Lee-Carter model to an extended version. While we observ...

Enhancing energy sector sustainability through robust green governance mechanisms for carbon neutrality

Abstract This study examines the adoption of green governance systems in Nigeria's energy sector to attain carbon neutrality, following Sustainable Development Goals (SDGs) 7 and 13. The study conducted conducts a comprehensive narrative re...

Factors Affecting High Body Weight Variability

Background : High body weight variability (BWV) is associated with many metabolic and cardiovascular diseases in adults. The study was designed to explore the baseline characteristics associated with high BWV. Methods : Using a nationally r...

Clustering of Unhealthy Lifestyle and the Risk of Adverse Events in Patients With Atrial Fibrillation

BackgroundLittle is known regarding the risk of clinical outcomes depending on the clustering of lifestyle behaviors after atrial fibrillation (AF) diagnosis. This study evaluated the association between a cluster of healthy lifestyle behav...

Improved representation of laminar and turbulent sheet flow in subglacial drainage models

Subglacial hydrology models struggle to reproduce seasonal drainage patterns that are consistent with observed subglacial water pressures and surface velocities. We modify the standard sheet-flow parameterization within a coupled sheet–chan...

Entropy Measures for Plithogenic Sets and Applications in Multi-Attribute Decision Making

Plithogenic set is an extension of the crisp set, fuzzy set, intuitionistic fuzzy set, and neutrosophic sets, whose elements are characterized by one or more attributes, and each attribute can assume many values. Each attribute has a corres...

Optimality conditions in multiobjective programming models with semi-infinite constraints using generalized (h,φ)-G-type I functions

In this paper, we introduce a new class of generalized (h,φ)-G-type I vector-valued functions, by combining the notions of (h,φ)-differentiable functions, G-invex functions, and type I functions. By using these new concepts, we formulate an...

Fatty Liver & Diabetes Statistics in Korea: Nationwide Data 2009 to 2017

Background This study investigated the changes of fatty liver disease prevalence in general Korean population. Methods This study analyzed data from the Korean National Health Insurance Service from 2009 to 2017 that included individuals ag...

Evaluating Uses of Deep Learning Methods for Causal Inference

Logistic regression (LR) is a popular method that is used for estimating causal effects in observational studies using propensity scores. We examine the use of deep learning models such as the deep neural network (DNN), PropensityNet (PN), ...

Impact of power outages: Unveiling their influence on micro, small, and medium-sized enterprises and poverty in Sub-Saharan Africa - An in-depth literature review

The paper explores the review on the impact of electricity outages on MSMEs in Sub-Saharan Africa, analyzing their effects on productivity and poverty levels based on a review of 102 studies spanning from 2010 to 2023. The review organizes ...

Extremes of Product of Gaussian Random Variables

We investigate the asymptotic behavior of the product of Gaussian random variables, with a focus on tail probabilities. Although sums of normal variables are well understood through classical limit theorems, their products exhibit significa...

Cumulative Exposure to High γ-Glutamyl Transferase Level and Risk of Diabetes: A Nationwide Population-Based Study

Background Elevated γ-glutamyl transferase (γ-GTP) level is associated with metabolic syndrome, impaired glucose tolerance, and insulin resistance, which are risk factors for type 2 diabetes. We aimed to investigate the association of cumul...

JENIS INDUSTRI, KEPEMILIKAN SAHAM ASING DAN REAKSI PASAR MODAL AKIBAT SERANGAN BOM TERORIS

The purpose of this study is to investigate whether the Indonesian stock market reacts to terrorist bomb attack, and whether the Indonesian stock market reaction to terrorist bomb attack is affected by industry type and foreign ownership. U...

EARNINGS QUALITY AND ASYMMETRIC COST BEHAVIOR: A STUDY OF INDONESIA CAPITAL MARKET

This study investigates whether earnings quality affects to asymmetric cost behavior, i.e., sticky cost of listed firms of Jakarta Stock Exchange (JKSE). This study analyzes 1032 year-firms observations during 2012-2019 periods. This study ...