Results 71 to 80 of about 11,240 (193)

Clearing the Air: How Fine Particulate Matter Regulations Reshape Farmland Values in U.S. Corn and Soybean Regions

open access: yesJournal of Agricultural Economics, EarlyView.
ABSTRACT We investigate the impact of air quality regulations targeting fine particulate matter (PM2.5) on farmland values in corn and soybean producing counties in the United States over the period 1997–2022. Using self‐reported farmland value data from the Agricultural Census and county‐level pollution classifications provided by the Environmental ...
Cécile Couharde, Rémi Generoso
wiley   +1 more source

An analysis of the FIR/RADIO Continuum Correlation in the Small Magellanic Cloud

open access: yes, 2012
The local correlation between far-infrared (FIR) emission and radio-continuum (RC) emission for the Small Magellanic Cloud (SMC) is investigated over scales from 3 kpc to 0.01 kpc. Here, we report good FIR/RC correlation down to ~15 pc.
A. Hughes   +61 more
core   +1 more source

Environmental Performance Evaluation Under the Frontier Analysis Framework: A Farm‐Level Systematic Review and Meta‐Analysis

open access: yesJournal of Agricultural Economics, EarlyView.
ABSTRACT Quantifying and improving the environmental performance (EP) of agriculture has become an urgent research and policy priority. Over the past three decades, frontier‐based analytical frameworks have been widely applied to evaluate farm‐level EP.
Fissha Asmare   +5 more
wiley   +1 more source

Combined Forecasting Method of Landslide Deformation Based on MEEMD, Approximate Entropy, and WLS-SVM

open access: yesISPRS International Journal of Geo-Information, 2017
Given the chaotic characteristics of the time series of landslides, a new method based on modified ensemble empirical mode decomposition (MEEMD), approximate entropy and the weighted least square support vector machine (WLS-SVM) was proposed.
Shaofeng Xie   +3 more
doaj   +1 more source

A tutorial for understanding SEM using R: Where do all the numbers come from?

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Structural equation modeling (SEM) is often seen as a complex and difficult method, especially for those who want to understand how the numbers in SEM software output are actually computed. Although many open‐source SEM tools are now available—especially in the R programming environment—looking into their source code to understand the ...
Yves Rosseel, Marc Vidal
wiley   +1 more source

RSSI-Aided Joint Clock Synchronization and Ranging in Wireless Sensor Networks

open access: yesIEEE Access
Clock synchronization and localization are two fundamental problems in Wireless Sensor Networks (WSNs). Joint synchronization and ranging have been shown to significantly improve their accuracy.
Le Chung Tran   +6 more
doaj   +1 more source

Iterative image reconstruction for sparse-view CT using normal-dose image induced total variation prior.

open access: yesPLoS ONE, 2013
X-ray computed tomography (CT) iterative image reconstruction from sparse-view projection data has been an important research topic for radiation reduction in clinic.
Jing Huang   +8 more
doaj   +1 more source

A Data Fusion Orientation Algorithm Based on the Weighted Histogram Statistics for Vector Hydrophone Vertical Array

open access: yesSensors, 2020
In this paper, we propose a data fusion algorithm based on the weighted histogram statistics (DF-WHS) to improve the performance of direction-of-arrival (DOA) estimation for the vector hydrophone vertical array (VHVA).
Yan Liang   +5 more
doaj   +1 more source

Taxing windfall money: A quasi‐experimental study

open access: yesContemporary Economic Policy, EarlyView.
Abstract This paper examines individuals' reaction to windfall income taxation. We take advantage of similar tax reforms on lottery winnings in Portugal and Spain in 2013 to study effects on lottery participation in both countries. Using a Synthetic Difference in Differences approach on a database of 348 draws from EuroMillions, our results indicate ...
Álvaro Muñiz‐Fernández, Levi Pérez
wiley   +1 more source

Factors and Mechanism Affecting the Attractiveness of Public Transport: Macroscopic and Microscopic Perspectives

open access: yesJournal of Advanced Transportation, 2022
Enhancing the attractiveness of public transport is a key objective for transit agencies that seek to achieve sustainable urban mobility. This study identifies the key factors that affect the attractiveness of public transport from the macroscopic and ...
Chunqin Zhang   +6 more
doaj   +1 more source

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