Results 81 to 90 of about 2,678,299 (258)
Regression-based seasonal unit root tests [PDF]
The contribution of this paper is three-fold. Firstly, a characterisation theorem of the sub-hypotheses comprising the seasonal unit root hypothesis is presented which provides a precise formulation of the alternative hypotheses against which regression ...
Richard J. Smith +2 more
core
, 2003 Since the seminal paper by Dickey and Fuller in 1979, unit-root tests have conditioned the standard approaches to analyse time series with strong serial dependence, the focus being placed in the detection of eventual unit roots in an autorregresive model
García, Ana +2 more
core +1 more source
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source
Testing for Unit Roots: Mexico's GDP [PDF]
The study presents an analysis of the stochastic nature of the gross domestic product of Mexico for the period 1900-2001. Several specifications to test for the existence of unit roots are presented.
Ramon A. Castillo Ponce +1 more
core
Government revenue and expenditure nexus in South Africa
South African Journal of Economic and Management Sciences, 2013 This paper investigates the nexus between government expenditure and government revenue in South Africa within the framework of a vector autoregressive (VAR) approach. It uses the Hylleberg et al.
Esman Nyamongo +2 more
doaj +1 more source
Molecular Oncology, EarlyView.In the present work, we have identified a transcriptional signature based on the differential expression of six genes (BCL2&MAST4, HSH2D&LAT2, METRN&PITPNM2) that would facilitate the early detection of T‐cell acute lymphoblastic leukemia (T‐ALL) patients prone to a poor treatment response and could be implemented at diagnosis, along with other risk ...
Antonio Lahera +11 more
wiley +1 more source
Seasonal unit roots in trade variables [PDF]
In this paper we examine the presence of seasonal unit roots in trade variables for Germany, France, the United Kingdom, and Italy, using the procedure developed by Hylleberg, Engle, Granger, and Yoo (1990) [HEGY].
Carol Alexander +1 more
core
Testing for seasonal unit roots in heterogeneous panels [PDF]
, 2004 This paper uses the approach of Im, Pesaran and Shin (2003) to propose seasonal unit root tests for dynamic heterogeneous panels based on the means of the individuals HEGY test statistics.
Giulietti, Monica +2 more
core +1 more source
Additive Units of Product System of Hilbert Modules
International Journal of Analysis and Applications, 2016 In this paper we consider the notion of additive units and roots of a central unital unit in a spatial product system of two-sided Hilbert C∗-modules.
Biljana Vujosevic
doaj +2 more sources
IDENTIFICATION OF LECTINS OF ZEA MAYS RAW MATERIAL AND THE STUDY OF LECTIN ACTIVITY [PDF]
Annals of Mechnikov's Institute, 2013 The aime of the study was to identify lectins in the Zea mays raw material: roots, stems, heads, leaves and corn silk and study their activity. Lectins activity has been studied using the biological method of ratuserytroagglutination.
Karpiuk UV, Kyslychenko VS
doaj