The effect of curricular activities on learner autonomy: the perspective of undergraduate mechanical engineering students

This study researches how first-year engineering students perceived the influence of curricular activities on their own learning autonomy, measured with an adaptation of the Personal Responsibility Orientation to Self-direction in Learning Scale (PRO-SDLS). Participants were questioned to assess the influence of the teacher's role. The results indicate that learners’ characteristics (motivation and self-efficacy) contribute more to learner autonomy (LA) than the teaching–learning transaction (control and initiative), as in the original PRO-SDLS validation. The most autonomous learners presented higher values in all LA components and dimensions, but the differences were greater in motivation and initiative. The participants with higher LA were not as dependent on the teacher, regarding assessment, the completion of classroom tasks and deadlines. Regardless of the degree of autonomy in learning, all participants viewed teachers as the main source of information. Therefore, LA plays an important role in teaching activities planning. Suggestions for adjustments and more flexible learning scenarios are formulated.     

Principals’ qualifications in special education and students with and at risk for disabilities’ reading achievement growth in kindergarten

To effectively teach reading to students with and at risk for disabilities, special and general education teachers depend on principals who support effective specialized reading instruction. Yet, extant research indicates that principals have inadequate preparation for supporting specialized instruction. To address this issue, scholars have recommended that leader preparation programs should provide prospective leaders with more preparation in special education. However, research to date provides limited indications of whether more preparation would in fact support more effective leadership for special education. Therefore, we examined data from the Early Childhood Longitudinal Study to determine whether principals’ qualifications in special education and in reading predicted struggling readers’ and students with disabilities’ reading achievement growth in kindergarten. We found no effects; principals’ coursework in special education, coursework in reading, prior experiences as a special education teacher, and experience in school leadership did not predict reading achievement growth among students with or at-risk for disabilities.     

A Comparison of Latent Growth Models for Constructs Measured by Multiple Items

A multiple testing approach is outlined that can be used to examine the assumption of underlying normal variables in latent variable models with categorical indicators. The method is based on an application of the increasingly popular Benjamini–Hochberg multiple testing procedure, and is readily applicable with widely circulated software. The discussed method is especially useful for ascertaining this assumption that is very often made in research based on structural equation modeling using models containing discrete outcomes. The described approach is illustrated with numerical data.     

Museum without walls： Imagining new formative spaces

The ＂Museum of Childhood＂ is a project connected to the Post-Graduate Program in Education at Unesc （Brazil） and since 2005 has been developing interfaces with research, teaching and extension. In this paper, the authors would like to show how the museological conception of the Museum of Childhood makes imagination from one of the central axis of its formative relation with the public. Such conception breaks with the traditional view of museums as buildings where old things are collected and preserved. In fact, the Museum of Childhood, in the light of its objective conditions, wants to be a museum without walls, a museum that, using the device of spatial demarcation, spreads itself in the university campus and other public places, with the objective of communicating with the people. This conception comes closer to the transgressive nature of modem arts, which desacralizes the work of art as masterpiece and proposed, for example, the fugacity of installations and aesthetic interventions. This conception takes the Benjaminian notion of the past as the dimension where other futures remain latent, that is, the museum is seen not as a guardian of the past, but as an establishment that wants to use its collections to communicate with the public. The overrunning of the static physical space, for example, forces the public to recreate its horizon of expectations concerning what a museum show be. In order to accomplish its original objectives, the Museum of Childhood works intensively on the formation of the public by proposing monitored visits in which creative activities are developed and by improving its homepage.     

Quantitative analysis of Brazilian football players' organisation on the pitch

The purpose of this study was to characterise Brazilian teams' coverage area and spread on the pitch while attacking and defending and to analyse the teams' organisation in tackle and shot on goal situations. We obtained the trajectories of 223 players in eight games with a tracking method. Team area was defined as the area of the convex hull formed by players' positions. Team spread was defined as the Frobenius norm of the distance-between-player matrix. We calculated teams' area and spread over time and in situations of shots on goal (n = 233) and tackles (n = 1897). While the players attacked, spread and area (median +/- confidence interval) ranged from 322.9 +/- 0.8 to 387.8 +/- 1.0 m and from 905.4 +/- 4.4 to 1407.6 +/- 5.5 m2, respectively. On defence, the values were smaller (p < 0.05) and ranged from 283.4 +/- 0.9 to 325.8 +/- 0.9 m and from 773.8 +/- 4.6 to 1158.4 +/- 5.5 m2 for the spread and the area. In defending circumstances, the teams presented a greater area and spread when they suffered shots on goal than when the teams performed tackles. In attacking situations, the teams presented a greater area and spread when they suffered tackles than when they performed shots on goal. The results allowed showing the attacking-defending interaction between Brazilian teams.     

How education background affects design outcome: teaching product development to mechanical engineers,industrial designers and managers

ABSTRACT

Product design and development (PDD) is a current topic of academic and industrial research. Emphasis on innovation and entrepreneurship, as well as design thinking and creativity has been recently pulled together into the teaching and research on PDD. This paper looks into a multidisciplinary setting made up of three similar but independent PDD masters courses taught at three higher education institutions, having the same assessment, syllabus, assignments and outcomes. As expected, students’ projects foci are different. The outcomes of this experience were confronted with an ex-post literature review, which generated thorough guidelines that supported an innovative proposal for PDD education, to be implemented into an interdisciplinary Summer School. Significant generalisable contributions for educating modern engineers, designers and business entrepreneurs are expected, instead of just teaching methods of engineering, design and entrepreneurship at the case universities. The limitation of the used inductive reasoning concerns ‘truth’ being suggested but not assured.     

Cues of paternal uncertainty and father to child physical abuse as reported by mothers in Rio de Janeiro, Brazil

Objective

Paternity is uncertain, so if paternal feelings evolved to promote fitness, we might expect them to vary in response to variables indicative of paternity probability. We therefore hypothesized that the risk of lapses of paternal affection, including abusive assaults on children, will be exacerbated by cues of non-paternity.

Methods

Cross-sectional study of 331 Brazilian mothers, interviewed about 1 focal child (age 1–12) residing with her and the putative father. Child physical abuse was assessed using the Conflict Tactic Scales: Parent Child (CTSPC). Two potential cues of (non) paternity were (1) whether the parents co-resided when the child was conceived, and (2) whether third parties allegedly commented on father–child resemblance. Data were analyzed through multiple logistic regressions.

Results

Mothers reported child physical abuse by 15.9% (95% CI 4.6–27.1) of fathers who had not cohabited with them at conception, compared to 5.9% (95% CI 3.1–8.7) of those who had. The odds ratio for abuse by fathers who had not cohabited at conception in relation to those who had—adjusted for income, education, age, sex of child, whether child was first born, household size, time father spent with child, and alcohol abuse and drug use by father—was 4.3 (95% CI 1.4–13.8). Mothers reported abuse of 7.0% (95% CI 4.0–10.0) of children who purportedly resembled their fathers, versus 8.7% (95% CI 0.2–17.1) of those who did not.

Conclusion

According to maternal reports, not having co-resided at conception quadrupled the chance of child physical abuse by currently co-residing Brazilian fathers. The reported prevalence of abuse was unrelated to reported allegations of father–child resemblance.     

A place for arguing in engineering education: a study on students’ assessments

This paper focuses on the issue of how engineering programmes demand and/or promote argumentative reasoning, which is a subsequent aspect of curricular development. This was the main objective of the project on which this paper reports. This is to say that the focus is on assessment as a way to establish to what extent argumentative reasoning is demanded and mobilised in teaching and learning processes. This aim was achieved using a sample of assignments developed in courses in different Bologna undergraduate programmes at the Engineering School at the University of Porto, during the first semester of the academic year 2009/2010. Whereas problem solving in engineering constitutes a structural element in the curricular organisation of the engineering programmes and is strongly related to argumentative skills, it was possible to conclude that students demonstrate and explain extensively, but do not argue, possibly because their teachers do not invite them to do so in assessment situations.     

Nonlinear modeling and robust LMI fuzzy control of overhead crane systems

Overhead cranes are widely used structures for lifting and conveying heavy loads. The development of feedback control systems for such equipment is important due to the large number of potential applications and advantages over manual operation concerning stability and robustness. This paper aims to represent the key nonlinear dynamics of crane systems by means of a state-space fuzzy model with compact rule-base structure. The fuzzy model is useful to assist the design of a fuzzy controller based on the concept of parallel compensation. A well-posed conservative linear-matrix-inequality (LMI) feasibility problem is formulated so that a solution guarantees closed-loop Lyapunov stability, bounded control inputs, quick positioning of the supporting cart, and suppression of load oscillations and collisions. The fuzzy controller is composed by rules with linear control laws derived from local state-space models. The controller warrants asymptotic convergence of the states. Due to the nonlinear nature of the fuzzy model and controller, Jacobian linearization is avoided. The proposed fuzzy control approach for cranes has shown to be more effective and robust than an optimal quadratic controller, and able to move cargo smoothly and safely to a destination. Particularly, constrained and smoother control inputs avoid actuator saturation, and tend to increase its lifetime. Laboratory experiments using the LMI fuzzy controller and actual data validates the approach for cranes in actual scenario.