An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Abel Sanromualdo-Collado; Juan Bautista Gallego-Fernández; Patrick A. Hesp; María Luisa Martínez; Nicholas O'Keeffe; Nicolás Ferrer-Valero; Luis Hernández-Calvento
... Foredunes in arid coastal dune systems comprise nebkhas, which originate by interactions between vegetation and aeolian sedimentation. While continuous foredunes in temperate climates have been widely studied, knowledge of interactions between biotic and abiotic drivers in foredunes formed by nebkha is still scarce. With the aim of exploring variables affecting arid foredunes, a range of morpholog ...
... This study aims to determine whether psychological distress and workload predict satisfaction with life in Peruvian female university professors caring for dependent relatives. A total of 157 Peruvian female university professors aged 26–58 years who were caring for dependent relatives (M = 40.50; SD = 7.72) participated in the study. Of the female university professors participating in the study, ...
regressionanalysis, etc ; Gibbs free energy; air; computer simulation; hexadecane; models; prediction; quantitative structure-activity relationships; support vector machines; van der Waals forces; China; Show all 11 Subjects
Abstract:
... Predicting the logarithm of hexadecane/air partition coefficient (L) for organic compounds is crucial for understanding the environmental behavior and fate of organic compounds and developing prediction models with polyparameter linear free energy relationships. Herein, two quantitative structure activity relationship (QSAR) models were developed with 1272 L values for the organic compounds by usi ...
... Consumers can procure renewable energy via subscribing to green electricity from their utility for a price premium (or virtual option) or installing residential solar (or physical option). From economic theory, these options can be framed as substitutes (choosing between) or complements (choosing both). To test for this relationship, this study estimates how subscriptions to green electricity infl ...
... ℓ1‐penalized quantile regression (QR) is widely used for analysing high‐dimensional data with heterogeneity. It is now recognized that the ℓ1‐penalty introduces non‐negligible estimation bias, while a proper use of concave regularization may lead to estimators with refined convergence rates and oracle properties as the signal strengthens. Although folded concave penalized M‐estimation with strongl ...
... This study compares score- and feature-based methods for estimating forensic likelihood ratios for text evidence. Three feature-based methods built on different Poisson-based models with logistic regression fusion are introduced and evaluated: a one-level Poisson model, a one-level zero-inflated Poisson model and a two-level Poisson-gamma model. These are compared with a score-based method that em ...
... An M-quantile regression model is developed for the analysis of multiple dependent outcomes by introducing the notion of directional M-quantiles for multivariate responses. In order to incorporate the correlation structure of the data into the estimation framework, a robust marginal M-quantile model is proposed extending the well-known generalized estimating equations approach to the case of regre ...
regressionanalysis, etc ; curriculum; prediction; quantitative analysis; Show all 4 Subjects
Abstract:
... Morphological knowledge has been established as a critical sub-skill in the learning of bilingual reading and a strong predictor of spelling, word reading, and reading comprehension skills. The goal of this study was to investigate the prediction of morphological knowledge to reading comprehension in 185 university-level English as a Foreign Language (EFL) students, using the four primary derivati ...
... Although information intervention can guide individual behavior, there are variations in information interpretation and processing results caused by different psychological distances. This study explored the explanation mechanism underlying individual psychological distances and their effects on different information intervention strategies that aim to improve waste separation behavior. The survey ...
regressionanalysis, etc ; environmental performance; sustainable development; Show all 3 Subjects
Abstract:
... The sustainable development goals (SDGs) provide a strategic vision and future-oriented plan that companies, regulators and society in general are challenged to face. However, companies’ contribution to the achievement of SDGs is questioned by some critical voices. In the business context, SDGwashing refers to positively pursuing a contribution to some SDGs while ignoring the negative impact of ot ...
regressionanalysis, etc ; climatology; kriging; rain; Thailand; Show all 5 Subjects
Abstract:
... Spatial interpolation methods usually differ in their underlying mathematical concepts. Each has inherent advantages and disadvantages, and choosing a method should be based on the type of data to be analyzed. This paper, therefore, compares and evaluates the performances of well-established interpolation techniques that can be used to estimate monthly rainfall in Thailand. The approaches analyzed ...
regressionanalysis, etc ; Markov chain; algorithms; energy; models; Show all 5 Subjects
Abstract:
... Accurate residual capacity estimation of retired LiFePO₄ batteries is critically important for second-use applications but is challenging with multiple aging pathways and nonlinear degradation mechanisms. In this study, a fast and accurate residual capacity estimation method based on the mechanism and data-driven model is developed with two main contributions. First, as the basis of the residual c ...
regressionanalysis, etc ; data analysis; models; odds ratio; Show all 4 Subjects
Abstract:
... Conditional independence assumption of truncation and failure times conditioning on covariates is a fundamental and common assumption in the regression analysis of left-truncated and right-censored data. Testing for this assumption is essential to ensure the correct inference on the failure time, but this has often been overlooked in the literature. With consideration of challenges caused by left ...
regressionanalysis, etc ; drought; prediction; wavelet; wildfires; California; Show all 6 Subjects
Abstract:
... In recent years, many destructive wildfires have plagued California. Extreme fire conditions, such as drought, have been taking place simultaneously with many of these wildfires. In this study, the relationship was quantified between the self-calibrated Palmer Drought Severity Index (sc-PDSI) and wildfire burn area (BA) in California during the time of 1984–2018, and results indicate that t ...
Ibrar Ibrar; Sudesh Yadav; Ali Braytee; Ali Altaee; Ahmad HosseinZadeh; Akshaya K. Samal; John L. Zhou; Jamshed Ali Khan; Pietro Bartocci; Francesco Fantozzi
regressionanalysis, etc ; algorithms; data collection; osmosis; prediction; Show all 5 Subjects
Abstract:
... Internal concentration polarization (ICP) is currently a major bottleneck in the forward osmosis process. Proper modelling of the internal concentration polarization is therefore vital for improving the process performance and efficiency. This study assessed the feasibility of several machine learning methods for internal concentration polarization prediction, including artificial neural networks, ...
regressionanalysis, etc ; hepatoma; models; patients; prognosis; China; Show all 6 Subjects
Abstract:
... To compare the prognostic accuracy of nine staging systems, some of which are well-known and some of which have only been more recently described, for patients with unresectable HCC treated with radioembolization (RE). Individual scores or classes for the following staging systems were recorded or calculated for patients (n = 89) with unresectable HCC who underwent RE at a single tertiary care cen ...
regressionanalysis, etc ; irrigation and drainage; uncertainty analysis; Show all 3 Subjects
Abstract:
... The present study aims to experimentally evaluate the hydraulic characteristics of a B‐type triangular piano key weir (PKW). Equations are proposed for estimating the discharge coefficient (Cd) of type B triangular PKW. Nine PKW models were tested, and the discharge coefficients were obtained. To determine the PKW efficiency, in each flow condition, the experiment was repeated for a linear weir ha ...
regressionanalysis, etc ; data analysis; econometrics; journals; models; Show all 5 Subjects
Abstract:
... Much of the analysis of panel data has been based on an assumption of strict exogeneity. Distributions are specified for outcome variables conditional on a latent individual effect and conditional on observed predictor variables at all dates, with the future values of the predictor variables assumed to have no effect on the conditional distribution. The paper relaxes this assumption in order to al ...
regressionanalysis, etc ; algorithms; computer software; data analysis; Show all 4 Subjects
Abstract:
... Sufficient dimension reduction aims to reduce the dimension of predictors while maintaining the regression information. Recently, researchers have studied an impressive range of sparse inverse regression estimators. Nonetheless, conspicuously less attention has been given to the multivariate response with high-dimensional covariates settings. To fill the gap, a Fourier transform inverse regression ...
regressionanalysis, etc ; anesthetics; coral reefs; fish; ichthyology; Show all 5 Subjects
Abstract:
... This study describes the length–weight relationships (LWR) for 18 species of coral reef fish from the northern Line Islands, a geographically remote area of the central Pacific (3.48°N 158.80°W). Specimens were collected across multiple field campaigns (on average: 3–5 days per island, two islands per year) from 2006 to 2011 using three‐prong spears, spearguns, handlines, fishing poles, and fish a ...