Exploring the role of national culture on knowledge practices: a comparison between Spain and the UK

In the context of a competitive knowledge-based economy, the knowledge provided by a firm's founders is one of the most important measures of success. This paper aims to identify the role of national culture on a founder's knowledge practices in a modern organisation. Using data collected from 258 Small to Medium sized Enterprises (SME(S)) in the Spanish and UK telecommunication industries (130 from Spain and 128 from the UK), we propose three knowledge management practices to be analysed; namely transfer, transformation and open-mindedness. This paper provides evidence that while Spanish SME(S) are more positively associated with higher levels of transfer and transformation of knowledge, UK SME(S) are more positively associated with higher levels of open-mindedness. Hence, this study serves as an important contribution to the small amount of literature currently available in this field by examining different practices that can be explained by the cultural characteristics of both countries.     

The effect of students’ roles on the establishment of shared knowledge during collaborative problem solving: a case study from the field of mathematics

According to role theory each participant in a peer interaction performs a specific role in order to maintain his/her face. The aim of the present study was to examine whether the roles performed during collaborative problem solving affect the establishment of shared mathematical knowledge. The participants of our study were 40 student teachers who worked in dyads to solve three mathematical problems. The categorization of the roles performed and the analysis of their effect in the establishment of shared knowledge led us to the conclusion that certain role combinations enhance while others hinder the establishment of shared mathematical knowledge. An earlier version of this paper was presented at the 28th Annual Conference of the International Group for the Psychology of Mathematics Education (PME 28), held in Bergen, Norway in 2004.     

The Role of Religious Socialization and Religiosity in African American and Caribbean Black Adolescents’ Sexual Initiation

Journal of Religion and Health - This study determined the nature of the associations between religious socialization, religiosity, and adolescent sexual initiation. Data originated from the...     

The Rise and Fall of Syphilis in Renaissance Europe

The rapid changes that syphilis underwent after the first major outbreak that occurred in Naples in the mid-1490s are believed to constitute the first well-documented example of a human disease. The new plague was of exceptional virulence, highly contagious and causing severe ulceration at the site of infection. According to medical and other historical sources, the ‘genius epidemics’ changed some years after this onset, and a slower-progressing form of syphilis seems to have replaced the initial severe form, as do many virulent epidemic infectious diseases that appear in devastating forms in a previously uninfected population. But what exactly were the features of the disease at the moment of its appearance in Europe at the end of the fifteenth century? How many years did it take for the early, virulent form to be replaced and become endemic? What was the pace of these changes through the decades following the onset of the epidemic? In this essay, I review these issues through an analysis of a large number of chronologically-ordered primary historical sources.     

The use of Internet technology for psychoeducation and support with dementia caregivers

A large randomized trial evaluated the benefits of online education, support, and self-care promotion for caregivers of persons with dementia. Anecdotal reports from participants indicated enjoyment of the materials, convenient access from home, and support from professionals and other caregivers. A substantial number of screened caregivers experienced obstacles of access, cost, and time regarding use of technology. Telephone options are being explored, and future caregiving generations are expected to have increased exposure and willingness to use computer technology, such as the program described here.     

Mismatch between what is expected and what actually occurs triggers memory reconsolidation or extinction

In previous experiments on contextual memory, we proposed that the unreinforced re-exposure to the learning context (conditioned stimulus, CS) acts as a switch guiding the memory course toward reconsolidation or extinction, depending on reminder duration. This proposal implies that the system computes the total exposure time to the context, from CS onset to CS offset, and therefore, that the reminder presentation must be terminated for the switching mechanism to become operative. Here we investigated to what extent this requirement is necessary, and we explored the relation between diverse phases in the reconsolidation and extinction processes. We used the contextual memory model of the crab Chasmagnathus which involves an association between the learning context (CS) and a visual danger stimulus (unconditioned stimulus, US). Administration of cycloheximide was used to test the lability state of memory at different time points. The results show that two factors, no-reinforcement during the reminder (i.e., CS re-exposure) and CS offset are the necessary conditions for both processes to occur. Regardless of the reminder duration, memory retrieved by unreinforced CS re-exposure emerges intact and consolidated when tested before CS offset, suggesting that neither reconsolidation nor extinction is concomitant with CS re-exposure. Either process could only be triggered once the definitive mismatch between CS and US is confirmed by CS termination without the expected reinforcement.     

Beyond self-esteem: influence of multiple motives on identity construction

Diverse theories suggest that people are motivated to maintain or enhance feelings of self-esteem, continuity, distinctiveness, belonging, efficacy, and meaning in their identities. Four studies tested the influence of these motives on identity construction, by using a multilevel regression design. Participants perceived as more central those identity elements that provided a greater sense of self-esteem, continuity, distinctiveness, and meaning; this was found for individual, relational, and group levels of identity, among various populations, and by using a prospective design. Motives for belonging and efficacy influenced identity definition indirectly through their direct influences on identity enactment and through their contributions to self-esteem. Participants were happiest about those identity elements that best satisfied motives for self-esteem and efficacy. These findings point to the need for an integrated theory of identity motivation.     

Comment on IQ, sustained attention, and visual processing speed in children and adolescents with schizophrenia spectrum disorders

This paper is intended to lend support to the 2005 findings of McCarthy, Kraseski, Schvartz, Mercado, Daisy, Tobing, and Ryan in relation to the WISC-III performance of children and adolescents with Schizophrenia Spectrum Disorders. Relevant evidence from the literature and recent studies conducted by our group at the Institute of Psychiatry, UK, are discussed.