Adults'' Tolerance of Cries: An Experimental Investigation of Acoustic Features

Variations in the aversiveness of a newborn's distress cry were examined using experimental manipulation of 3 acoustic features of the cry (fundamental frequency, intonation, spectral complexity) and of the information given to subjects about the infant's health status. The subjects (N = 164 medical students) were allowed to control the sound pressure level (range: 50 dB [A]-105 dB[A]) of the different cry versions by repeatedly pressing a button (operant titration). For the nonmanipulated (original) cry version, the accepted sound pressure level decreased as fundamental frequency increased at above 610 Hz. This effect was modified by experimental manipulation of spectral complexity as well as intonation. A preference of intonated cries over monotonous cries was most pronounced between 534 and 686 Hz. Significant interactions of the information variable with the intonation and the complexity variables suggest that the listener's reaction to certain physical cry characteristics can be altered substantially by inducing different cognitive sets.     

Engineering education as a complex system

This paper presents a theoretical basis for cultivating engineering education as a complex system that will prepare students to think critically and make decisions with regard to poorly understood, ill-structured issues. Integral to this theoretical basis is a solution space construct developed and presented as a benchmark for evaluating problem-solving orientations that emerge within students’ thinking as they progress through an engineering curriculum. It is proposed that the traditional engineering education model, while analytically rigorous, is characterised by properties that, although necessary, are insufficient for preparing students to address complex issues of the twenty-first century. A Synthesis and Design Studio model for engineering education is proposed, which maintains the necessary rigor of analysis within a uniquely complex yet sufficiently structured learning environment.     

New scalar politics: implications for education policy

This paper argues that globalisation has implications for research and theory in the social sciences, demanding that the social no longer be seen as homologous with nation, but also linked to postnational or global fields. This situation has theoretical and methodological implications for comparative education specifically focused on education policy, which traditionally has taken the nation-state as the unit of analysis, and also worked with ‘methodological nationalism’. The paper argues that globalisation has witnessed a rescaling of educational politics and policymaking and relocated some political authority to an emergent global education policy field, with implications for the functioning of national political authority and national education policy fields. This rescaling and this reworking of political authority are illustrated through two cases: the first is concerned with the impact of a globalised policy discourse of the ‘knowledge economy’ proselytised by the OECD and its impact in Australian policy developments; the second is concerned explicitly with the constitution of a global education policy field as a commensurate space of equivalence, as evidenced in the OECD’s PISA and educational indicators work and their increasing global coverage. The paper indicatively utilises Bourdieu’s ‘thinking tools’ to understand the emergent global education policy field and suggests these are very useful for doing comparative education policy analysis.     

Promoting effective e-learning practices through the constructivist pedagogy

Although rapid advances in technology has allowed for the growth of collaborative e-learning experiences unconstrained by time and space, technology has not been heavily infused in the activities of teaching and learning. This article examines the theory of constructivism as well as the design of e-learning activities using constructivist principles. The manner in which constructivist theory supports e-Learning is explored, and extrapolating from this pedagogical theory, some implications are provided to model effective practices of the characteristics and capacities of this powerful learning environment.     

OPINION FORMATION IN MEDIATED CONFLICTS AND CRISES: A THEORY OF COGNITIVE-AFFECTIVE MEDIA EFFECTS

This paper analyzes opinion formation in the cases of threemediated conflicts using a complex model that evaluates therespondents' value systems, the coverage of the mass media used,the recipients' familiarity with specific events occurring inthe conflicts, and their positions on the issues. The modelpredicts that the recipients' long-term value systems influencetheir positions on the issue in two ways. Firstly, value systemshave a direct impact on the short-term positions on an issue.Secondly, value systems have an indirect impact on the positionsof issues by influencing the recipients' selection of news mediaand thus the type and amount of news information they are exposedto. The type and amount of news influences how knowledgeablethey are of the events related to the conflicts. The familiaritywith these events influences their positions on the issues.Value systems, media usage, familiarity and positions on theissues were measured in a survey. A parallel content analysisexamined the coverage of the conflicts in the German mass media(press, radio, television) during the six-month time frame priorto the survey. Both data sets were merged in order to give anestimate of the information each recipient was exposed to. Theresults of multiple regression analyses support the theoreticalmodel. Furthermore, this paper discusses the relevance of themodel for the analysis of opinion formation as well as the limitationsof the model.