Results 101 to 110 of about 63,666 (315)
American Journal of Agricultural Economics, EarlyView.Abstract Large‐scale land reforms constitute a substantial redistribution of wealth and reallocation of agricultural land, which is a major form of asset and production input in developing countries. While land redistribution (from the rich to the poor) remains a highly controversial issue, extensive evidence on its effect is limited.
Devashish Mitra +3 more
wiley +1 more source
Deciding between difference and system GMM.
, 2022 Comparing difference GMM estimation coefficient lag dependent variables to lower bound (fixed effect) estimates to decide whether to use difference GMM or system GMM.
Richard Yankey (10695444) +5 more
core +1 more source
Information framing and the impact of nutrition label serving size change
American Journal of Agricultural Economics, EarlyView.Abstract The framing of information can significantly influence how consumers interpret and respond to it. This paper investigates how the change in serving sizes in Nutrition Facts Panel (NFP) affects consumer choices for carbonated soft drinks (CSD). We first estimate a reduced form difference‐in‐differences (DiD) model to document causal effects on ...
Yuxiang Zhang, Yizao Liu, Linlin Fan
wiley +1 more source
On the Use of Fisher Vector Encoding for Voice Spoofing Detection
Proceedings, 2019 Recently, the vulnerability of automatic speaker recognition systems to spoofing attacks has received significant interest among researchers. A robust speaker recognition system demands not only high recognition accuracy but also robustness to spoofing ...
Jahangir Alam
doaj +1 more source
Patient‐Derived Fibroblasts as a Clinically Relevant Model of Kearns–Sayre Syndrome
Annals of Neurology, EarlyView.Objective Kearns–Sayre syndrome (KSS) is characterized by single large‐scale mitochondrial DNA deletions and by severe early‐onset clinical manifestations with neurological involvement. Reliable disease models, as well as validated biomarkers or effective treatments, are lacking.
Laura Valls‐Roca +24 more
wiley +1 more source
CoRR, 2018 While tree methods have been popular in practice, researchers and practitioners are also looking for simple algorithms which can reach similar accuracy of trees. In 2010, (Ping Li UAI'10) developed the method of "abc-robust-logitboost" and compared it with other supervised learning methods on datasets used by the deep learning literature. In this study,
openaire +2 more sources
Annals of Neurology, EarlyView.Objective The ALS Functional Rating Scale–Revised decline rate compresses trajectory shape into a single number, potentially missing distinct phenotypes. We tested whether shape identifies phenotypes that rate does not distinguish, and whether post‐hoc analysis recovers a hidden ultrarapid subgroup. Methods From the Piemonte and Valle d'Aosta register (
Andrea Calvo +20 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The oval window (OW) is an opening connecting the inner and middle ear. Its area has been shown to consistently scale with body mass (BM) in primates, and has been used alongside semi‐circular canal (SCC) size to differentiate Homo sapiens and fossil hominins, including Paranthropus robustus.
Ruy Fernandez, José Braga
wiley +1 more source
Ontogeny of murine bony semicircular canal form
The Anatomical Record, EarlyView.Abstract The labyrinthine geometry and functional anatomy of the semicircular canals have intrigued scientists for decades, and there has been considerable interest in understanding how these complex structures grow and develop with evidence emerging from human studies that size maturation occurs exceptionally early by comparison with other systems ...
Marcela Cárdenas‐Serna +1 more
wiley +1 more source
Asymptotic Results for GMM Estimators of Stochastic Volatility Models [PDF]
We derive closed-form expressions for the optimal weighting matrix for GMM estimation of the stochastic volatility model with AR(1) log-volatility, and for the asymptotic covariance matrix of the resulting estimator.
Geert Dhaene, Olivier Vergote
core