Results 261 to 270 of about 1,195,709 (313)

Cattle Abortions and Congenital Malformations Due to Bluetongue Virus Serotype 3 in Southern Belgium, 2024. [PDF]

open access: yesViruses
Delooz L   +6 more
europepmc   +1 more source

Breaking the symmetry to structure light

Optics Letters, 2021
We show that by breaking the symmetry of a beam subjected to tight focusing, namely by obscuring half of it or, equivalently, shifting the beam away from the lens axis, it is possible to obtain novel light properties in the focal spot which, to the best of our knowledge, have not been observed before.
Svetlana N. Khonina, Ilya Golub
openaire   +2 more sources

Testing for Structural Breaks [PDF]

open access: possible, 1991
The purpose of this paper is to investigate the tests of Hansen (1991) to detect structural breaks in cointegrated relations using Monte Carlo methods. The evaluation takes place within the linear quadratic model. The evidence for a single regressor suggests that the test have proper size and that the power is good provided the cost of adjustment is ...
Gregory, Allan W.   +3 more
openaire   +3 more sources

Structural Breaks in Financial Time Series

SSRN Electronic Journal, 2006
This paper reviews the literature on structural breaks in financial time series. The second section discusses the implications of structural breaks in financial time series for statistical inference purposes. In the third section we discuss change-point tests in financial time series, including historical and sequential tests as well as single and ...
Elena Andreou, Eric Ghysels
openaire   +1 more source

Home - About - Disclaimer - Privacy