Introduction to the Forum on the Violence of Rhetoric

Fundamentals of Debate. By Harry Franklin Covington. New York. Chas. Scribner's Son's, 1919. Pp. 291, Cloth.

Psycho‐Gymnastics and Society Drama. By Delbert M. Staley, A.M. Ph.D. and Helen C. Culver. Boston. Richard G. Badger, 1918. Cloth, pp. 94.

Winning Declamations. By Edwin DuBois Shurter. Lloyd Adams Noble. New York City, 1917. Cloth, pp. 303.     

Do Different Levels of Inquiry Lead to Different Learning Outcomes? A comparison between guided and structured inquiry

Although the effects of open inquiry vs. more didactic approaches have been studied extensively, the effects of different types of inquiry have not received as much attention. We examined the effects of guided vs. structured inquiry on secondary students' learning of science. Students from three schools in north-eastern Thailand participated (N?=?239, Grades 7 and 10). Two classes in each school were randomly assigned to either the guided or the structured-inquiry condition. Students had a total of 14–15 hours of instructions in each condition. The dependent measures were science content knowledge, science process skills, scientific attitudes, and self-perceived stress. In comparison to the structured-inquiry condition, students in the guided-inquiry condition showed greater improvement in both science content knowledge and science process skills. For scientific attitudes and stress, students in one school benefited from guided inquiry much more than they did from structured inquiry. Findings were explained in terms of differences in the degree to which students engaged effortfully with the teaching material.     

Designing Deliberation Systems

In a liberal democracy, the evolution of political agendas and formation of policy involves deliberation: serious consideration of political issues. Modern-day political participation is dependent on widespread deliberation supported by information and communication technologies, which also offer the potential to revitalize and transform citizen engagement in democracy. Although the majority of Web 2.0 systems enable these discourses to some extent, government institutions commission and manage specialized deliberation systems (information systems designed to support participative discourse) intended to promote citizen engagement. The most common examples of these are political discussion forums. Although usually considered trivial adaptations of well-known technologies, these types of deliberative systems are often unsuccessful, and present a distinct set of design and management challenges. In this article, the authors analyze the issues involved in establishing political deliberation systems under four headings: stakeholder engagement, Web platform design, service management, political process reshaping, and evaluation and improvement. We review the existing literature and present a longitudinal case study: the Norwegian Demokratitorget (Democracy Square). We define key issues in each of the four areas, which need to be understood to design and manage a successful net-based deliberation forum.     

Evaluating the integration of body donor imaging into anatomical dissection using augmented reality

Augmented reality (AR) has recently been utilized as an integrative teaching tool in medical curricula given its ability to view virtual objects while interacting with the physical environment. The evidence for AR in medical training, however, is limited. For this reason, the purpose of this mixed method study was to evaluate the implementation of overlaying donor-specific diagnostic imaging (DSDI) onto corresponding body donors in a fourth-year, dissection-based, medical elective course entitled anatomy for surgeons (AFS). Students registered in AFS course were separated into groups, receiving either DSDI displayed on Microsoft HoloLens AR head-mounted display (n = 12) or DSDI displayed on iPad (n = 15). To test for the change in spatial ability, students completed an anatomical mental rotation test (AMRT) prior to and following the AFS course. Students also participated in a focus group discussion and completed a survey at the end of AFS, analyzed through thematic triangulation and an unpaired, Mann Whitney U test respectively, both addressing dissection experience, DSDI relevancy to dissection, and use of AR in anatomical education. Although statistically significant differences were not found when comparing student group AMRT scores, survey and discussion data suggest that the HoloLens had improved the students' understanding of, and their spatial orientation of, anatomical relationships. Trunk dissection quality grades were significantly higher with students using the HoloLens. Although students mentioned difficulties with HoloLens software, with faculty assistance, training, and enhanced software development, there is potential for this AR tool to contribute to improved dissection quality and an immersive learning experience.     

Hybrid sliding mode observer for switched linear systems with unknown inputs

This paper addresses the state observation and unknown input estimation of a class of switched linear systems with unknown inputs. This class of systems may have modes in which the state is not fully observable. A state transformation allows implementing two suitable reduced-order observers. The first one, based on second order sliding mode techniques, is proposed to reconstruct the discrete state in the presence of unknown inputs. The second one, based on gathering partial information from individual modes of the switched system and on higher order sliding mode techniques, is introduced to estimate the continuous state. Then, the observer injection signal of the first second order sliding mode observer is used to estimate the unknown inputs. Simulation results highlight the efficiency of the proposed method.     

Controlling droplet incubation using close-packed plug flow

Controlling droplet incubation is critical for droplet-based microfluidic applications; however, current techniques are either of limited precision or place strict limits on the incubation times that can be achieved. Here, we present a simple technique to control incubation time by exploiting close-packed plug flow. In contrast to other techniques, this technique is applicable to very short and very long incubation times.     

Behavioural and emotional well-being of children following non-directive play with school staff

This action research project considered whether significant improvements in child and young person behavioural and emotional mental health could be achieved using school-based play workers as opposed to qualified therapists. This was seen as being an important practice question as access to qualified play therapists was severely restricted with long waiting lists. The Strengths and Difficulties Questionnaire (SDQ) was used as a pre- and post-intervention measure to identify any changes following non-directive play sessions with school staff. Significant improvements were found across all SDQ scales, with the most marked improvement observable in children and young people identified as having a high need for intervention. Number of play sessions attended and age group did not significantly affect SDQ scores according to teacher and child/young person ratings. Parent SDQ ratings indicated greater success of the play intervention for children aged between three and eight years compared with children aged between 11 and 15 years.     

Organizing the Baby Boomer Construct: An Exploration of Marketing,Social Systems,and Culture

Baby boomer trends are applied in the development of a conceptual framework that offers a social systems and cultural model for future studies. While there has been considerable recent attention paid to baby boomers, the studies lack a coherent theoretical base that would allow for more advanced and continuing research. Aging baby boomers heading into retirement present excellent research opportunities for scholars.