Search results for "Portfolios"
showing 5 items of 5 documents
Regional Ambassadors or State Agents? Assessing the Role of Catalan Cabinet Ministers in Spain
2022
Identificador de proyecto: UPO-FEDER (grant number UPO-1380883)
Procedures for study of teaching practices. Literature Review
2012
Interest in studying teaching practices has increased, because of the need to evaluate teachers and dissatisfaction with the usual ways of doing it. Recent approaches with Value-Added Models, based on students’ results on achievement tests do not seem satisfactory. The article is based on a review of literature and classifies the approaches to practices in three groups: instruments based on information given by teachers; observation protocols; and approaches based on the analysis of products of the practices. Specific tools are described and advantages and disadvantages of the three approaches are discussed. El interés por las prácticas docentes ha aumentado, en parte por la necesidad de ev…
Implementation of Digital Portfolios in Early Childhood Education
2019
Curricula, influenced by the digitalization, set requirements for early childhood education (ECE) settings to implement digital practices. However, ECE teachers are struggling to integrate information and communication technology (ICT) and child-centered pedagogy, such as digital portfolios, successfully into practice. Previous research efforts have focused on analyzing the barriers of digital technology implementation. This study, in turn, takes a broader view and addresses the complex task of implementing digital practices into education by analyzing the factors that foster and challenge the implementation process. The results show that human related factors are considered the most foster…
Do Investors Care About Noise Trader Risk?
2011
International audience; The link between investor sentiment and asset valuation is at the center of a long-running debate in behavioral finance. Using a new composite sentiment indicator, we show that the conventional risk does not explain the abnormal returns of portfolios most sensitive to the sentiment factor. Our result supports the existence of a sentiment risk valued by financial markets. We also find that the firms more impacted by the sentiment risk correspond to difficult-to-arbitrage and hard-to-value stocks, e.g. small stocks, growth stocks, young stocks, unprofitable stocks, lower dividend-paying stocks, intangible stocks and high volatility stocks.
Data from: Collective defence portfolios of ant hosts shift with social parasite pressure
2014
Host defences become increasingly costly as parasites breach successive lines of defence. Because selection favours hosts that successfully resist parasitism at the lowest possible cost, escalating coevolutionary arms races are likely to drive host defence portfolios towards ever more expensive strategies. We investigated the interplay between host defence portfolios and social parasite pressure by comparing 17 populations of two Temnothorax ant species. When successful, collective aggression not only prevents parasitation but also spares host colonies the cost of searching for and moving to a new nest site. However, once parasites breach the host's nest defence, host colonies should resort…