Results 81 to 90 of about 7,939,634 (308)

Multi-State Models for Panel Data: The msm Package for R

open access: yesJournal of Statistical Software, 2011
Panel data are observations of a continuous-time process at arbitrary times, for example, visits to a hospital to diagnose disease status. Multi-state models for such data are generally based on the Markov assumption.
Christopher H. Jackson
doaj  

Instrument Selection in Panel Data Models with Endogeneity: A Bayesian Approach

open access: yesEconometrics
This paper proposes the use of Bayesian inference techniques to search for and obtain valid instruments in dynamic panel data models where endogenous variables may exist. The use of Principal Component Analysis (PCA) allows for obtaining a reduced number
Álvaro Herce, Manuel Salvador
doaj   +1 more source

Productive efficiency analysis of quantitative economics journals through Stochastic Frontier Analysis using panel data || Análisis de eficiencia productiva de revistas de economía cuantitativa a través del análisis de frontera estocástica utilizando datos de panel

open access: yesRevista de Métodos Cuantitativos para la Economía y la Empresa, 2020
The main goal of a scientific journal is to diffuse new knowledge. The number of citations received by a journal can be considered as a measure of this objective and, in turn, as a measure of productivity in relation to the production process in which ...
Gavilan, José M., Ortega, Francisco J.
doaj   +1 more source

Modeling hepatic fibrosis in TP53 knockout iPSC‐derived human liver organoids

open access: yesMolecular Oncology, EarlyView.
This study developed iPSC‐derived human liver organoids with TP53 gene knockout to model human liver fibrosis. These organoids showed elevated myofibroblast activation, early disease markers, and advanced fibrotic hallmarks. The use of profibrotic differentiation medium further amplified the fibrotic signature seen in the organoids.
Mustafa Karabicici   +8 more
wiley   +1 more source

Institutional quality, aid flows, and malaria burden: a geospatial analysis of sub-Saharan Africa

open access: yesMalaria Journal
Background Malaria remains a major public health challenge in sub-Saharan Africa, accounting for approximately 95 percent of global malaria deaths despite extensive interventions.
Caroline Namubiru
doaj   +1 more source

The Relationship between Commercial, Technological, Research (Multidimensional) Complexity Indices and Financial Development

open access: yesEkonomi, Politika & Finans Araştırmaları Dergisi
The source of economic growth is the supply-demand balance. Demand refers to consumption and supply refers to production. Producing quality products plays an important role on the production side of this balance.
Tuba Esra Baskak
doaj   +1 more source

When Inflation Drives Twin Deficits Catch in the Eurozone [PDF]

open access: yesAmfiteatru Economic
The paper explores the impact of inflation on the validity of the twin deficits hypothesis (TDH) in the Eurozone countries, focussing on how different inflation levels influence twin deficit existence (i.e., a positive relation between fiscal and ...
Barbara Brixova   +3 more
doaj   +1 more source

Aggregation in Linear Models for Panel Data

open access: yesJOURNAL OF THE JAPAN STATISTICAL SOCIETY, 2009
We study the impact of individual and temporal aggregation in linear static and dynamic models for panel data in terms of model specification and efficiency of the estimated parameters. Model wise we find that i) individual aggregation does not affect the model structure but temporal aggregation may introduce residual autocorrelation, and ii ...
Petkovic, Alexandre, Veredas, David
openaire   +3 more sources

Tumor and germline testing with next generation sequencing in epithelial ovarian cancer: a prospective paired comparison using an 18‐gene panel

open access: yesMolecular Oncology, EarlyView.
Genetic testing in epithelial ovarian cancer includes both germline and tumor‐testing. This approach often duplicates resources. The current prospective study assessed the feasibility of tumor‐first multigene testing by comparing tumor tissue with germline testing of peripheral blood using an 18‐gene NGS panel in 106 patients.
Elisabeth Spenard   +12 more
wiley   +1 more source

Development of Digital Technologies in Russia: Regional Aspects [PDF]

open access: yesЭкономика региона, 2019
The modern economy is on the way to a new technological order based on knowledge-intensive industries relying on digital technologies. This transition’s possible effects are yet to be sufficiently studied as they require thorough analysis and the use of ...
Marina Yuryevna Arkhipova   +1 more
doaj  

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