Results 191 to 200 of about 6,213,269 (396)

Digging Out the PPP Hypothesis: an Integrated Empirical Coverage [PDF]

We use several popular tests to test the validity of the Purchasing Power Parity (PPP) hypothesis. In particular, we analyze four classes of tests { standard univariate unit root tests, co-integration, panel unit root tests and unit root tests for ...
Miguel de Carvalho, Paulo Julio
core  

Interleukin‐6 as a Key Biomarker in Facioscapulohumeral Dystrophy: Evidence From Longitudinal Analyses

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Facioscapulohumeral muscular dystrophy type 1 (FSHD1) is a progressive neuromuscular disorder with no approved treatments. Identifying reliable biomarkers is critical to monitor disease severity, activity, and progression. Interleukin‐6 (IL‐6) has been proposed as a candidate biomarker, but longitudinal validation is limited ...
Jonathan Pini, Emanuela Martinuzzi, Sandra Dhifallah, Abderhmane Slioui, Angela Puma, Luisa Villa, Michele Cavalli, Andra Ezaru, Jérémy Garcia, Manuela Gambella, Federico Torre, Luca Jacopo Pavan, Nicolas Glaichenhaus, Sabrina Sacconi   +13 more
wiley   +1 more source

Testing for stationary of housing prices in China: An examination using efficient unit root tests. [PDF]

Heliyon
Bian N, Chen Y.
europepmc   +1 more source

Purchasing Power Parity (PPP) in a Transition Economy - Cambodia: Empirical Evidence from Bilateral Exchange Rates [PDF]

This study contributes to the existing literature by examining the validity of PPP hypothesis for Cambodia. The standard unit root tests (ADF and PP) and the panel unit root tests fail to support PPP hypothesis for the nine Cambodia’s trading partners ...
Tuck Cheong Tang, Venus Khim-Sen Liew
core  

Accelerated Progression of Gait Impairment in Parkinson's Disease and REM Sleep Without Atonia

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective People with Parkinson's disease (PD) and rapid eye movement (REM) sleep without atonia (RSWA) often have more severe gait disturbances compared to PD without RSWA. The association between the presence and expression of RSWA and the rate of progression of gait impairment in PD is unknown.
Sommer L. Amundsen‐Huffmaster, Jae Woo Chung, Maria E. Linn‐Evans, Matthew N. Petrucci, Chiahao Lu, Destiny J. Weaver, Joshua De Kam, Scott E. Cooper, Paul J. Tuite, Aleksandar Videnovic, Michael J. Howell, Colum D. MacKinnon   +11 more
wiley   +1 more source

Testing unit root non-stationarity in the presence of missing data in univariate time series of mobile health studies. [PDF]

J R Stat Soc Ser C Appl Stat
Fowler C, Cai X, Baker JT, Onnela JP, Valeri L.   +4 more
europepmc   +1 more source

CSF Levels of NPTX2 Are Associated With Less Brain Atrophy Over Time in Cognitively Unimpaired Individuals

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Neuronal pentraxin 2 (NPTX2) is a synaptic protein involved in synaptic plasticity and regulation of neuronal excitability. Lower baseline cerebrospinal fluid (CSF) NPTX2 levels have been shown to be associated with an earlier onset of mild cognitive impairment (MCI), a pre‐dementia syndrome, even after CSF Alzheimer's Disease (AD)
Juan P. Vazquez, Corinne Pettigrew, Yuxin Zhu, Claire Anderson, Guray Erus, Christos Davatzikos, Michael Miller, Abhay Moghekar, Sungtaek Oh, Chan‐Hyun Na, Marilyn Albert, Paul Worley, Anja Soldan   +12 more
wiley   +1 more source

More N fertilizer, more maize, and less alfalfa: maize benefits from its higher N uptake per unit root length. [PDF]

Front Plant Sci
Shao Z, Zheng C, Postma JA, Gao Q, Zhang J.   +4 more
europepmc   +1 more source

Recursive Right-Tailed Unit Root Tests for an Explosive Asset Price Bubble

, 2013
David I. Harvey, Stephen J. Leybourne, Robert Sollis   +2 more
openalex   +2 more sources

Panel unit root tests of purchasing power parity hypothesis: Evidence from Turkey [PDF]

In this paper, we employ some front page panel unit root tests to examine the validity of the purchasing power parity hypothesis in Turkey. Using monthly observations panel data of nine major county’s currency dates January 2003 through April 2010, we ...
Gozgor, Giray
core   +1 more source