Good practices to influence engagement and learning outcomes on a traditional introductory programming course

ABSTRACT

There have been many successful examples of new methodological approaches developed to help students in computer programming courses. Of these approaches, the peer assessment mechanism could be useful in providing students with opportunities to learn from one another, improve their learning experience and reach efficient learning outcomes. The paper presents and analyses an improved system based on the received evaluations of a previously developed web-based programming-assisted environment. This system automatically manages the peer code review process and delivers feedback to peers in a manner that favours the incremental learning of the concepts presented throughout the course. The experimental results are focussed on the impact of this system on students’ programming competence, time management capabilities and student engagement.     

Sliding mode optimal control for linear systems

This paper addresses the optimal control problem for a linear system with respect to a Bolza–Meyer criterion with a non-quadratic non-integral term. The optimal solution is obtained as a sliding mode control, whereas the conventional linear feedback control fails to provide a causal solution. Performance of the obtained optimal controller is verified in the illustrative example against the conventional LQ regulator that is optimal for the quadratic Bolza–Meyer criterion. The simulation results confirm an advantage in favor of the designed sliding mode control.     

Naming speed and effortful and automatic inhibition in children with arithmetic learning disabilities

We report a two-year longitudinal study aimed at investigating the rate of access to numerical and non-numerical information in long-term memory and the functioning of automatic and effortful cognitive inhibition processes in children with arithmetical learning disabilities (ALDs). Twelve children with ALDs, of age 9.3 years, and twelve gender–age-matched controls were involved in the study. Rate of access was measured through digit- and letter-naming tasks, automatic cognitive inhibition was measured using a negative priming paradigm, and effortful cognitive inhibition was measured rating intrusion errors in a working memory task. Children with ALDs suffered from a deficit in the speed of activating both numerical and non-numerical information from long-term memory and in effortful inhibition mechanisms. No evidence for dysfunction of the automatic inhibition processes was found.     

Recent advances in swollen-state NMR spectroscopy for the study of drying oils

The cross-linking processes of three drying oils (poppy, linseed, walnut), a class of organic compounds very important in the field of artworks, were studied by means of ¹H-NMR spectroscopy, following the change of the protons signals when oils are heated at 60 °C in the presence of air or nitrogen gas. This preliminary information is particularly important to identify the presence of drying oils within a solid painting film. We demonstrated that it was possible to study these films by swollen-state NMR, an innovative spectroscopy method that can directly analyze very small semisolid samples instead of solutions. The main advantages of this method are the short time of analysis, the possibility to analyze samples without any preliminary treatment, and the small quantity of the sample required. Therefore, swollen-state NMR technique was used to characterize three real painting films: in this way, we succeeded in recognizing in real paintings specimens the presence of drying oils employed as binders, avoiding any interferences due to other organic compounds acting as binding agents, like waxes or egg-yolk media.     

Pigments and binders in “Madonna col Bambino e S. Giovannino” by Botticelli investigated by micro-Raman and GC/MS

During the restoration plan of the famous painting “Madonna col Bambino e S. Giovannino” by Sandro Botticelli, located in the Museo Civico of Piacenza (Italy), a study on painting materials was carried out. The pigments, the binders and the materials used for the application of ground and priming layers were studied using micro-Raman spectroscopy, gas chromatography coupled with mass spectrometry (GC/MS), optical and electronic microscopies. Gypsum and anhydrite were found in the ground layer, while carbon black and lead white were used in the priming layers. The precious pigments of the artist's palette and the binders used (egg and animal glue) were determined.     

Students’ feedback in mid-term surveys: an explorative contribution in the Italian university context

This article focuses on the role of student feedback in the process of higher education quality assurance. The most recent reforms of the educational systems encourage teachers to enlarge their educational paradigm by experimenting with assessment practices that would go behind accountability and be more responsive to students’ learning needs. In Italy, despite the widespread acknowledgment of the role played by students’ feedback in providing information about the outputs of their education, the quality assurance process has remained, thus far, largely unchanged. Student compliance with rather traditional academic teaching practices and a diffused sense of uselessness of the results coming from end-course surveys represent increasing malpractices in the Italian quality assurance system. In view of the above, the article reports an explorative study aimed to develop a mid-term survey for student feedback. Implications for future research are discussed.     

A Quantitative Approach to Evaluate the Relative Efficiency of Museums

Data Envelopment Analysis is used for evaluating the technical efficiency of museum institutions. This approach enables us to create for each museum a relative efficiency measure, which takes into account both the resources used by museums and the results of their activities. Moreover this technique is able to overcome some of the difficulties found when applying more traditional indicators of productivity in evaluating the technical efficiency of cultural institutions. An empirical analysis carried out on data from Italian municipal museums illustrates this application of the operational research model.