نتایج جستجو برای: break point frequency

تعداد نتایج: 1018716  

Journal: :Political Science Research and Methods 2021

Abstract Decades of research has debated whether women first need to reach a “critical mass” in the legislature before they can effectively influence legislative outcomes. This study contributes debate using supervised tree-based machine learning relationship between increasing variation women's representation and allocation government expenditures three policy areas: education, healthcare, def...

Journal: :The Journal of pharmacology and experimental therapeutics 2008
Sara Jane Ward Timothy W Lefever Cavario Jackson Ronald J Tallarida Ellen A Walker

The cannabinoid and serotonin systems modulate feeding behavior in humans and laboratory animals. The present study assessed whether a cannabinoid (CB)(1) receptor antagonist and a serotonin (5-HT)(2C) receptor agonist alone and in combination attenuate motivation for the liquid nutritional drink Ensure as measured by a progressive ratio (PR) schedule of reinforcement in male C57BL/6 mice. Pret...

Journal: :Al-Raida Journal 1970

2007
David Harris David I. Harvey Stephen J. Leybourne Robert Taylor

We consider the issue of testing a time series for a unit root in the possible presence of a break in a linear deterministic trend at an unknown point in the series. We propose a new break fraction estimator which, where a break in trend occurs, is consistent for the true break fraction at rate Op(T). Unlike other available estimators, however, when there is no trend break our estimator converg...

Journal: Money and Economy 2018

The Central Bank of Iran banned online currency trading through Forex brokers in November 2016. However, some Iranian speculators still trade in the online Forex market. Is this prohibition on Forex trading reasonable? According to reports, the majority of Forex day traders fail and leave the market within six months to a year. Some scholars attribute this failure to the changeable characterist...

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