The Role of Age and Verbal Ability in the Theory of Mind Task Performance of Subjects with Autism

A number of studies have reported that most children with autism fail theory of mind tasks. It is unclear why certain children with autism pass such tests and what might be different about these subjects. In the present study, the role of age and verbal ability in theory of mind task performance was explored. Data were pooled from 70 autistic, 34 mentally handicapped, and 70 normal young subjects, previously tested for a number of different studies. The analysis suggested that children with autism required far higher verbal mental age to pass false belief tasks than did other subjects. While normally developing children had a 50% probability of passing both tasks at the verbal mental age of 4 years, autistic subjects took more than twice as long to reach this probability of success (at the advanced verbal mental age of 9-2). Possible causal relations between verbal ability and the ability to represent mental states are discussed.     

Liminality in education: generating a creative space of encounter and dialogue between teachers and students within educational structures

ABSTRACT

The dominant results-driven/performance-oriented culture and the pressures of performativity in education have meant that the promotion of creativity has been narrow in scope and the translation into practice less apparent than the rhetoric would suggest. Creativity can survive even in times of standardisation, but it is more likely to be confined to interstitial zones. Interstitial zones are in-between social spaces outside the formal teaching zones in which creativity may give voice to those students whose voice is not always heard in the formal teaching context.

Often, creativity is equated exclusively to substantial creative outputs and, as a result, teachers who are not sensitised to creativity in a broader sense may underestimate their own creative ability and the positive impact this might have on the relationship with their students. A shift in teacher education that results in a more meaningful appreciation of both the nature of creativity and its benefits is therefore required. A developmental approach which starts with teacher cultivation of creative sensibility is essential to achieve greater infusion of creativity. The paper posits that teachers who resist rigid social structures and engage in critical pedagogy are also more likely to be receptive to creativity and its the pastoral potential in education.     

“Real life use” of troponin in the emergency department: a survey of over 3000 cases

Introduction

The aim of this study was to identify clinical variables which may be independently associated with positivity of a cardiac troponin I (cTnI) assay in a large population of patients admitted to the emergency department (ED).

Materials and methods

3166 subjects, with at least two troponin I tests ordered within 6 hours in the ED, were studied. Patient data were statistically analyzed to identify clinical associations with increased values of Troponin I.

Results

Although patients with diagnosis of acute coronary syndrome displayed troponin I values significantly higher than those of other groups, positivity to troponin I (> 40 ng/L) was also observed in patients with other clinical conditions. In multivariate analysis, age, elevated heart rate and electrocardiographyc changes were independently associated with troponin I positivity at admission. In the whole study population troponin I positivity exhibited high sensitivity and negative predictive value, counterbalanced by low specificity and limited positive predictive value.

Conclusions

Troponin I positivity should be combined with history and clinical evaluation and cautiously interpreted in the ED, especially in patients exhibiting factors associated with higher troponin I levels such as older age, elevated heart rate or ECG changes.Key words: troponin I, acute coronary syndrome, emergency service, hospital, chest pain     

The Impact of the National Endowment for the Arts in the United States: Institutional and Sectoral Effects on Private Funding

This paper examines the impact of the National Endowment for the Arts on private donations to the arts. The aim of the analysis is to assess whether public funding generates a crowding effect on private giving. We distinguish between institutional and sectoral crowding phenomena and discuss their possible implications.We used both a qualitative approach and an econometric model to estimate the effect of NEA introduction and appropriations on donations. Our results suggest that at the institutional level NEA grants do not generally induce donations to recipients while at the sectoral level appropriations and private giving are independent. The introduction of the agency appears to have caused a decrease in donations.     

Differences in field dependence-independence cognitive style as a function of socioeconomic status,sex, and cognitive competence

This study analyzes the field dependence-independence (FDI) cognitive style—ascertained and measured by means of the Children's Embedded Figures Test (CEFT) — as a function of socioeconomic status, sex, and cognitive competence — measured on the McCarthy Scales—in 7-year-old children. The tests were administered to 117 subjects, of whom 79 were of low socioeconomic status (50 girls and 29 boys) and 38 were of upper-middle socioeconomic status (20 girls and 18 boys). All subjects were in their second year of primary education. Subjects of upper-middle socioeconomic status achieved significantly higher scores than did subjects of low socioeconomic status on the five McCarthy Scales and on the FDI variable. The sex variable produced differences only in the FDI variable, where boys scored higher than girls. Perceptual ability explains 22.84% of the FDI variance; verbal ability is excluded from the regression equation that analyzes such dependence. Finally, the interpretation of FDI as a stylistic or cognitive variable is discussed.     

A polymeric micro-optical interface for flow monitoring in biomicrofluidics

We describe design and miniaturization of a polymeric optical interface for flow monitoring in biomicrofluidics applications based on polydimethylsiloxane technology, providing optical transparency and compatibility with biological tissues. Design and ray tracing simulation are presented as well as device realization and optical analysis of flow dynamics in microscopic blood vessels. Optics characterization of this polymeric microinterface in dynamic experimental conditions provides a proof of concept for the application of the device to two-phase flow monitoring in both in vitro experiments and in vivo microcirculation investigations. This technology supports the study of in vitro and in vivo microfluidic systems. It yields simultaneous optical measurements, allowing for continuous monitoring of flow. This development, integrating a well-known and widely used optical flow monitoring systems, provides a disposable interface between live mammalian tissues and microfluidic devices making them accessible to detection∕processing technology, in support or replacing standard intravital microscopy.     

Radio Station Innovation and Risk Taking: A Survey of Programmers and General Managers

We conducted a survey of radio station program directors and general managers to explore the perception and role of innovation within radio programming and the key factors that influence this perception. In the study, we found that, in general, programmers and general managers perceive little innovation in programming except at their own stations. Results also indicate perceptions that more risk taking is needed in radio programming, that risk taking is essential for the financial health of a station, that increased artist diversity and an innovative music rotation influence the perception of innovation at the station level, and that too many commercials are being placed within an average hour of programming.