Results 101 to 110 of about 2,559 (193)

Theta entrainment of gamma modules: effects of heterogeneity and non-stationarity [PDF]

, 2012
Ruben A. Tikidji-Hamburyan, Carmen C. Canavier   +1 more
openalex   +1 more source

Climate and political effects on agriculture: Empirical evidence from SSA

International Studies of Economics, EarlyView.
Abstract The most of Sub‐Saharan African (SSA) countries have been affected by climate change and food insecurity problems due to the reduction of production and productivity of cereal crops in the continent. The purpose of this research was to examine the short‐run and long‐run effects of climate change on agricultural productivity in 24 selected SSA ...
Defaru Adugna Feye, Amsalu Bedemo Beyene, Suchitra Krishna Kumar   +2 more
wiley   +1 more source

A Dynamic False Alarm Rate Control Method for Small Target Detection in Non-Stationary Sea Clutter

Journal of Marine Science and Engineering
Sea surface non-stationarity poses significant challenges to sea-surface small target detection, particularly in maintaining a stable false alarm rate (FAR).
Yunlong Dong, Jifeng Wei, Hao Ding, Ningbo Liu, Zheng Cao, Hengli Yu   +5 more
doaj   +1 more source

Non-stationarity and structural breaks in mineral price and supply historical series

, 1998
Stefano Mainardi
openalex   +1 more source

Controlling or Caring? Associations Between Helicopter Parenting and Perceived Conflict and Support at the Within‐Family Level

Journal of Adolescence, EarlyView.
ABSTRACT Introduction The cultural normativeness hypothesis suggests that helicopter parenting might be less problematic in Chinese cultures, which strongly value intensive parental involvement. Chinese helicopter parenting might show positive associations with both problematic (i.e., conflict) and beneficial (i.e., support) aspects of youth‐parent ...
Yue Wang, Savannah Boele, Loes Keijsers, Skyler T. Hawk   +3 more
wiley   +1 more source

Dealing with multiple experts and non-stationarity in inverse reinforcement learning: an application to real-life problems [PDF]

, 2021
Amarildo Likmeta, Alberto Maria Metelli, Giorgia Ramponi, Andrea Tirinzoni, Matteo Giuliani, Marcello Restelli   +5 more
openalex   +1 more source

Informing DSGE Models Through Dynamic Factor Models

Journal of Applied Econometrics, EarlyView.
ABSTRACT Structural dynamic factor models (SDFM) represent a reliable tool to inform the construction of dynamic stochastic general equilibrium (DSGE) models. The reason is that the log‐linear solution of a DSGE model has a factor structure which ensures consistency between the representations of the two models.
Mario Forni, Luca Gambetti, Marco Lippi, Luca Sala   +3 more
wiley   +1 more source

INFLUENCE OF NON-STATIONARITY OF WIND DIRECTION ON WIND-INDUCED RESPONSE AND PRESSURE OF A SQUARE PRISM BUILDING : A consideration based on the comparison of wind-tunnel tests with field measurements

, 2001
Masayasu Suzuki, Tetsuro Tamura, Satoshi Sanada, Manabu Yamamoto   +3 more
openalex   +2 more sources

Characterizing the fine‐scale spatial distribution of soil phosphorus for efficient phosphorus management in an Illinois tile‐drained field

Journal of Environmental Quality, EarlyView.
Abstract Closed depressions in post‐glacial landscapes can accumulate phosphorus (P) due to repeated flooding and become hotspots for P loss when underlain by subsurface (tile) drainage. Soil P mapping is routinely based on the interpolation of samples from a 1‐ha grid, which may miss closed depressions and underestimate soil P levels leading to ...
Lenarth A. Ferrari, Lowell E. Gentry, Luis F. Andino, Jennifer M. Fraterrigo   +3 more
wiley   +1 more source

A Nordhaus–Gaddum Problem for the Spectral Gap of a Graph

Journal of Graph Theory, EarlyView.
ABSTRACT Let G $G$ be a graph on n $n$ vertices, with complement G¯ $\bar{G}$. The spectral gap of the transition probability matrix of a random walk on G $G$ is used to estimate how fast the random walk becomes stationary. We prove that the larger spectral gap of G $G$ and G¯ $\bar{G}$ is Ω(1∕n) ${\rm{\Omega }}(1\unicode{x02215}n)$.
Sooyeong Kim, Neal Madras
wiley   +1 more source