Race,Media, and the Cultivation of Concern

These reflections on critical communication and cultural studies of race draw on Bruno Latour's idea of ‘matters of concern’ to propose that scholars expand the focus of inquiry from empirical questions of veracity and accuracy in representations of race to concerns with how (and where) media gather and mobilize sentiments and affective investments that increasingly underwrite quotidian practices of racial inequality and racism in the post racial period.     

The Internet Defends Itself: The Network Neutrality Debate on the Web

This study examines the network neutrality debate, as represented online. The research begins by conducting network analysis to identify key websites, followed by retrieving the relevant documents and using content analysis. Results demonstrate that the online version of the debate skews heavily toward the pro-network neutrality side. The web debate also includes much higher proportions of voices from nonprofit sectors, especially nongovernmental organizations. Telecommunications companies and trade groups, which anchor the anti-network neutrality coalition, are relatively quiet online. These findings show groups that are less powerful making heavy use of online communication and, in light of the political history of the issue, they also suggest online mobilizing may help reshape the dynamics of issue advocacy.     

Diagnosis,Evaluation, and Treatment of Lead Poisoning in General Population

Among the heavy metals, lead still remains the major toxic pollutant of the environment. Human exposure to lead can occur through numerous pathways including air, food, dust, soil, and water. In the present study 14 lead poisoned patients with non-occupational lead exposure were evaluated. They were followed up and compared against the controls with no history of lead exposure. The patients had high blood lead levels and symptoms of weakness, dizziness, abdominal pain, generalized body ache, loss of appetite, and anxiety. Repeated course of chelation therapy helped to bring down their body burden of lead. Alternative sources for lead exposure can cause severe lead poisoning in general population. Screening and medical management of such individuals is very important to identify and eliminate sources of lead. The treatment and management requires a thorough medical evaluation and environmental intervention.     

Exploring the potential common psychotherapeutic factors: use of cognitive behavioural therapy,mindful yoga and positive psychology in enhancing the well-being of students with SENs in Hong Kong

This study examined the effects of cognitive behavioural therapy (CBT), mindful yoga and positive psychology interventions and identified common psychotherapeutic elements that exert critical treatment effects on Hong Kong Chinese students with special educational needs (SENs). Forty-seven participants received CBT intervention while 42 and 41 participants received mindful yoga and positive psychology interventions, respectively (N = 130). Mixed ANOVAs revealed no significant interaction effect between time and intervention condition on any outcome variables. However, within-subjects ANOVA revealed significant improvements in some dimensions within each intervention, including areas of behavioural problems, positive feelings and positive relationships. Changes in negative automatic thoughts were also found to lessen negative emotions in all three interventions. This study ascertained the differential effects of the selected approaches in ameliorating negative emotion, reducing behavioural problems and enhancing positive relationships among students with SENs in various treatment approaches. In addition, this study highlighted several common psychotherapeutic elements, which could potentially serve as important factors and constitute the formulation of an integrative psychotherapeutic framework for enhancing the well-being of students with SENs in Hong Kong. Finally, implications for practice and the possible development of an integrative intervention model were discussed.     

From Evidence to Action: A Seamless Process in Formative Assessment?

Based on the results of a generalizability study of measures of teacher knowledge for teaching mathematics developed at the National Center for Research on Evaluation, Standards, and Student Testing at the University of California, Los Angeles, this article provides evidence that teachers are better at drawing reasonable inferences about student levels of understanding from assessment information than they are at deciding the next instructional steps. We discuss the implications of the results for effective formative assessment and end with considerations of how teachers can be supported to know what to teach next.     

Nonlinear trajectory tracking controller for a class of robotic vehicles

A global state feedback tracking controller for a class of vehicles, namely marine vehicles, hovercrafts and indoor airships is considered in this paper. The control algorithm uses a velocity transformation of the vehicle equations of motion. It is shown that this algorithm is suitable for control of fully actuated systems and leads to fast response. This property arises from the fact that the dynamical couplings in the vehicle are taken into account in the control gain matrix. A Lyapunov-like function is proposed for the stability analysis of the system under the controller. The algorithms robustness issue is considered too. Numerical simulations are given to illustrate effectiveness of the approach.     

Nonionizing Radiation Hazards

This paper summarizes biophysical and bioengineering studies of biological hazards which may result from exposure to microwaves. Various phases of this study include: determination of the electrical characteristics of body tissues; determination of microwave and membrane characteristics; studies of a variety of electromechanical phenomena which can be evoked by RF fields; investigations of the mode of propagation of microwaves into man and animals, including absorption and reflectance characteristics and radar cross-section of man. One outcome of this work is a standard of safe exposure which is presently accepted in most Western countries.     

Combining feminist pedagogy and transactional distance to create gender-sensitive technology-enhanced learning

In this paper, we argue for a new synthesis of two pedagogic theories: feminist pedagogy and transactional distance, which explain why and how distance education has been such a positive system for women in a national distance learning university. We illustrate this with examples of positive action initiatives for women. The concept of transactional distance allows us to explore distance as a form of psychological and communication space, not simply of geographical distance. Feminist pedagogy, on the other hand, has recognised the importance of gender in structuring disciplines as well as teaching strategies. Both theories implicitly position the face-to-face classroom as the ideal learning environment, with the implication that distance learning has to produce a deficient environment. We argue that the evidence for women does not support this and present examples of feminist distance learning provision that has offered successful technology-enhanced learning and educational opportunities.     

Body_machine? Encounters of the human and the mechanical in education,industry and science

This paper unveils the body_machine as a key element of dynamic mental maps that have come to shape both educational praxis and research. It traces and analyses instances in which the human and the mechanical encountered each other in metaphorical, material and visual forms, thereby blurring to some extent the boundaries between them while capturing and mobilising specific forms of knowing and acting. The paper studies, first, how certain ‘orienting frames of reference’ and associated ‘experimental systems’ managed to materialise around the body_machine and penetrate theory and praxis; and, second, what visual and textual sources related to a vocational school may reveal about where and how the body_machine has come to operate in education, industry and science. The paper centres on early twentieth-century photographs and analyses these not only as media presenting, representing and interrogating common thought and practice but also as agents of meaning-making around the body_machine.