Results 141 to 150 of about 8,348,933 (325)

Consumption of anthropogenic foods influences the nutritional and reproductive condition of hunter‐harvested black bears

Wildlife Biology, EarlyView.
The consumption of human food subsidies influences ecological processes, and can affect individual behavior and fitness with population level changes in abundance and distribution. American black bears Ursus americanus often consume human food subsidies, which have been correlated with increased bear body size, age‐specific fertility and mortality ...
Isabel I. Field, Jonathan N. Pauli, David M. MacFarland, Jennifer L. Price Tack, Matthew M. Smith   +4 more
wiley   +1 more source

Super-Consistent Tests of Lp-Functional Form [PDF]

This paper develops a consistent test of best Lp-predictor functional form for a time series process. By functionally relating two moment conditions with different nuisance parameters we are able to construct a vector moment condition in which at least ...
Jonathan Hill
core  

Regional coyote densities estimated from camera trapping covary with deer productivity, anthropogenic land use, and human–coyote conflicts

Wildlife Biology, EarlyView.
Density estimates assist conservation and management decisions. Unfortunately, management of elusive mesocarnivores occurring at low densities has often relied on qualitative metrics or population indices. The proliferation of camera trap sampling of wildlife provides an opportunity to apply recently developed methods for estimating density of unmarked
Zackary J. Delisle, Audrey M. Andritsch, Robert K. Swihart, J. Andrew DeWoody   +3 more
wiley   +1 more source

Pairwise Likelihood Estimation of the 2PL Model with Locally Dependent Item Responses

Applied Sciences
The local independence assumption is crucial for the consistent estimation of item parameters in item response theory models. This article explores a pairwise likelihood estimation approach for the two-parameter logistic (2PL) model that treats the local
Alexander Robitzsch
doaj   +1 more source

Efficient Estimation in Semiparametric GARCH Models [PDF]

It is well-known that financial data sets exhibit conditional heteroskedasticity.GARCH type models are often used to model this phenomenon. Since the distribution of the rescaled innovations is generally far from a normal distribution, a semiparametric ...
Drost, F.C., Klaassen, C.A.J.
core   +1 more source

Fate of orphans of Canada geese harvested by hunters in Connecticut, USA, depends upon which month the parents were killed

Wildlife Biology, EarlyView.
Little is known about what happens to juvenile birds after one or both of their parents are harvested by hunters during the post‐fledging dependency period. Here, we compare the fate of juvenile Canada geese Branta canadensis that lost ≥ 1 parent to hunters (orphans) during this period to other juveniles that retained both parents (non‐orphans). For 25
Michael R. Conover, Lauren J. Head
wiley   +1 more source

Track-before-detect procedures for detection of extended object

EURASIP Journal on Advances in Signal Processing, 2011
In this article, we present a particle filter (PF)-based track-before-detect (PF TBD) procedure for detection of extended objects whose shape is modeled by an ellipse.
Fan Ling, Zhang Xiaoling, Shi Jun
doaj  

Fixed-B Asymptotics in Single Equation Cointegration Models with Endogenous Regressors [PDF]

This note uses fixed bandwidth (fixed-b) asymptotic theory to suggest a new approach to testing cointegration parameters in a single-equation cointegration environment. It is shown that the standard tests still have asymptotic distributions that are free
Bunzel, Helle
core  

Tales of Cyberspace and Artificial Intelligence: Diverging Stakeholderships?

Global Policy, EarlyView.
ABSTRACT This article traces the evolution of the Internet from the 1990s to the 2020s and compares it with the development of Artificial Intelligence (AI), particularly following the public launch of ChatGPT in late 2022. It identifies both parallels and divergencies between these two overlapping technological domains, focusing on the growing ...
Johan Eriksson, Giampiero Giacomello
wiley   +1 more source

A Bayesian look at nuisance parameters

Trabajos de Estadistica Y de Investigacion Operativa, 1980
The elimination of nuisance parameters has classically been tackled by variousad hoc devices, and has led to a number of attempts to define partial sufficiency and ancillarity. The Bayesian approach is clearly defined. This paper examines some classical procedures in order to see when they can be given a Bayesian justification.
openaire   +2 more sources