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A First Ever Look into Greece’s Vast Educational Data: Interesting Findings and Policy Implications
Education Sciences, 2021 Intro: In this survey the academic performance of primary and secondary school students in Greece, for three consecutive school years, was examined. The data concerned all Greek students of the last two grades of elementary school and the three grades of
Ilias Papadogiannis +4 more
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BMJ Open, 2022 Objective To examine the impact of the government communicating uncertainties relating to COVID-19 vaccine effectiveness on vaccination intention and trust after people are exposed to conflicting information.Design Experimental design where participants ...
Eleonore Batteux +3 more
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Uncertainty about Trade Policy Uncertainty [PDF]
SSRN Electronic Journal, 2020 We revisit in this note the macroeconomic impact of the recent rise in trade policy uncertainty. As in the literature, we do find that high trade policy uncertainty can adversely impact domestic and foreign economic activity. In addition, we identify an alternative business sentiment channel that is separate and distinct from the impact of trade policy
Benigno, Gianluca, Groen, Jan J. J.
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SoilGrids 2.0: producing soil information for the globe with quantified spatial uncertainty
The Soil, 2021 . SoilGrids produces maps of soil properties for the entire globe at medium spatial resolution (250 m cell size) using state-of-the-art machine learning methods to generate the necessary models.
L. Poggio +6 more
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Social Media Analytics as a Tool for Cultural Spaces—The Case of Twitter Trending Topics
Big Data and Cognitive Computing, 2022 We are entering an era in which online personalities and personas will grow faster and faster. People are tending to use the Internet, and social media especially, more frequently and for a wider variety of purposes.
Vassilis Poulopoulos, Manolis Wallace
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The Quarterly Journal of Economics, 2014 Abstract We develop a theory of endogenous uncertainty and business cycles in which short-lived shocks can generate long-lasting recessions. In the model, higher uncertainty about fundamentals discourages investment. Since agents learn from the actions of others, information flows slowly in times of low activity and uncertainty remains ...
Pablo Fajgelbaum +2 more
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Pursuing Social Justice in Educational Robotics
Education Sciences, 2022 In educational systems that make their first attempt to incorporate STEAM concepts in their teaching, educational robotics is typically the place to start; robotics kits are purchased, and a small group of pupils is typically selected to develop a ...
Manolis Wallace, Vassilis Poulopoulos
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VACS: VAccination disComfort Scale
Clinics and Practice, 2022 The vaccination of children is a crucial tool to protect both individuals and the world in general from various diseases and pathogens. Unfortunately, the vaccination procedure is not a pleasant one for all children, with many experiencing various levels
Manolis Wallace +2 more
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Analysis of Product Sampling for New Product Diffusion Incorporating Multiple-Unit Ownership
Abstract and Applied Analysis, 2014 Multiple-unit ownership of nondurable products is an important component of sales in many product categories. Based on the Bass model, this paper develops a new model considering the multiple-unit adoptions as a diffusion process under the influence of ...
Zhineng Hu, Yurong Pei, Ruikun Xie
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A Two-Stage Method to Determine Optimal Product Sampling considering Dynamic Potential Market
The Scientific World Journal, 2015 This paper develops an optimization model for the diffusion effects of free samples under dynamic changes in potential market based on the characteristics of independent product and presents a two-stage method to figure out the sampling level. The impact
Zhineng Hu, Wei Lu, Bing Han
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