Material characterization,stratigraphy, textures,and painting techniques of the mural painting The Allegory of the Industrial Development of São Paulo by Fulvio Pennacchi

ABSTRACT

This work presents a study of samples of the mural painting The Allegory of the Industrial Development of São Paulo (Alegoria ao Desenvolvimento Industrial Paulista), made in the city of São Paulo, Brazil, by the artist Fulvio Pennacchi. Using transmitted light petrographic microscopy, scanning electron microscopy coupled with energy dispersive X-ray spectrometry, and X-ray fluorescence, the stratigraphy, the textures, the mineralogy, and the chemical compositions of the mural were established; therefore the painting techniques, pigments, and materials applied by the artist were identified. The mural was painted with the fresco technique and variations. This technique involves the use of materials of mineral origin, both in the support and for the pigments. About the artist’s relevance, Fulvio Pennacchi is considered an important muralist of his time, being one of the pioneers in the production of frescoes in Brazil. The mural, measuring approximately 11?×?6?m, painted in 1954, was removed from where it was originally made, in consequence of a fire that affected the place. Specialized engineers transported it, and today it is stored awaiting restoration. The data presented here can support the process of restoration of the mural, as well as contribute to the improvement of protocols for the analysis of works of art, and to the historical record of mural painting techniques over time.     

Assessing collaborative work in a higher education blended learning context: strategies and students’ perceptions

This study examines students' views on a blended learning module developed and offered at the University of Aveiro. The paper presents the module and the strategies, tools, activities and assessment. In order to examine the effectiveness of the module, data were collected from reflections, postings and questionnaires. Findings document students’ opinions concerning the module, the activities and their learning. Students valued the module but expressed concerns in using the wiki tool, assessing collaborative work and in engaging in peer assessment activities. The results have practical implications for the design of collaborative activities and innovative assessment in blended learning environments.

Bewertung kollaborativer Arbeit in einem gemischten Hochschulbildungs‐Lernkontext: Strategien und Wahrnehmungen der Studenten

Diese Studie untersucht die Ansichten von Studenten auf einem gemischten Lern‐Modul, entwickelt und angeboten von der Universität Aveiro. Das Papier stellt das Modul und die Strategien, Tools, Aktivitäten und Bewertung vor. Um die Wirksamkeit des Moduls zu untersuchen, wurden die Daten von Reflexionen, Notizen und Fragebögen gesammelt. Die Ergebnisse dokumentieren die Meinungen über das Modul, ihre Aktivitäten und ihr Lernen. Studenten schätzten das Modul hatten aber Bedenken beim Wiki‐Tool, bezüglich des kooperativen Arbeitens, Bewertungen und Peer‐Bewertungs‐Aktivitäten. Die Ergebnisse haben praktische Folgen für das Design gemeinsamer Aktivitäten und innovative Bewertungen ?gemischter Lernumgebungen”.

L’évaluation du travail collaboratif dans un contexte d’enseignement universitaire mixte: le strategies et les perceptions des étudiants

La présente étude examine les opinions des étudiants sur un module d’apprentissage mixte (blended) mis au point et assuré à l’Université d’Aveiro. Cet article présente le module et les stratégies, les outils, les activités et l’évaluation. Pour déterminer l’efficacité de ce module, on a rassemblé des données à partir des réflexions, des envois et des questionnaires. Les éléments recueillis illustrent les opinions des étudiants à propos du module, des activités et de ce qu’ils ont appris. Les étudiants ont apprécié le module mais exprimé leur inquiétude quant à l’usage de l’outil wiki, de l’évaluation du travail collaboratif et de l’engagement dans des activités d’évaluation de leurs camarades. Ces résultats ont des retombées pratiques pour la conception des activités collaboratives et d’un mode d’évaluation innovant dans des environnements d’apprentissage mixte.

La evaluación del trabajo colaborativo dentro de un entorno de aprendizaje mixto (Blended Learning) en la enseñanza superior: estrategias y percepciones de los estudiantes

El presente estudio examina las opiniones de los estudiantes acerca de un módulo de aprendizaje mixto desarrollado y propuesto por la Universidad de Aveiro. El artículo presenta el módulo y las estrategías, herramientas, actividades y evaluación. Para determinar la eficacia del módulo se hizo una recogida de datos, basandose en reflexiones, mensajes y cuestionarios. Los resultados ilustran las opinones de los estudiantes acerca del módulo, de las actividades y de lo que han aprendido.Los estudiantes valoran el módulo pero expresaron su preocupación acerca del uso de la herramienta wiki, de la evaluación del trabajo cooperativo y de la dedicación a actividades de evaluación mutual. Esos resultados conllevan consecuencias prácticas para el diseño de actividades cooperativas y la evaluación innovadora en entornos de aprendizaje mixto.     

Student–teacher closeness and conflict in students with and without special educational needs

Teachers play a key role in creating effective conditions for students to succeed in school. The quality of student–teacher relationships is consistently associated with social, emotional, behavioural and academic adjustment, and this is even more relevant for students with special educational needs (SEN), considering these students’ emotional, social and learning vulnerabilities. This study aimed to examine the associations between students’ externalising and internalising behaviour, social skills and academic performance, and teachers’ perceptions of conflict and closeness in their relationships with students with and without SEN. Data regarding 360 students in Year 3, Year 5 and Year 7 (169 students with SEN) were collected. Teachers (n = 74) reported on the student–teacher relationship and students’ social skills, behaviour problems and academic performance. Special education teachers (n = 38) provided information regarding the diagnosis and profile of functioning of students with SEN. Results showed that teachers’ reports of students’ social skills and externalising problems were the strongest predictors of closeness and conflict. Internalising problems and SEN status also predicted decreased closeness, despite smaller effects. Taken together, findings support the importance of professional development opportunities focusing on facilitating teachers’ relationships with students with perceived challenging behaviour.     

Nutritional intake of elite football referees

Abstract

There is a paucity of dietary data in football referees. In this study, 23 elite main and assistant referees (34.4 ± 5.6 years) completed a 7-day dietary record during the competitive season. No nutritional intake differences were observed between main and assistant referees. Referees’ mean daily energy intake (DEI) was 2819 ± 279 kcal. The intake of proteins (1.7 ± 0.2 g · kg^?1), carbohydrates (4.1 ± 0.8 g · kg^?1) and fats (1.4 ± 0.2 g · kg^?1) represented, respectively, 18.4 ± 1.5%, 44.4 ± 4.4% and 34.6 ± 4.1% of the DEI. Carbohydrate intakes before, during and after exercise were 66 ± 42, 7 ± 15 and 120 ± 62 g. Daily carbohydrate, fibre, polyunsaturated fat and water intakes were below recommendations, while fat, saturated fat, cholesterol and sodium intakes were above recommended values. The prevalence of inadequate intake was high for vitamin E (96%), folate (74%), vitamin A (61%), vitamin C (39%), magnesium (26%) and calcium (22%). Carbohydrate intake before, during and after exercise were far from achieving the minimum recommended values. Most referees demonstrated a negligent behaviour of hydration during exercise. Referees would benefit from dietary education in order to optimise performance and health.     

Specificities of the artistic cultural labor market in Brazilian metropolitan regions between 2002 and 2010

This paper analyzes the singularity of artistic cultural sector workers in the Brazilian metropolitan labor market, considering the job satisfaction of artists that Throsby proposes in his work preference model of artist behavior (1994). We also examine the effect of public expenditures on the income of workers in the cultural sector. Using 2002 to 2010 data from the Monthly Employment Survey (PME) and administrative records from Finance of Brazil (FINBRA), we estimate a probit model and a wage equation. In our model, we estimate wages as a function of: (1) sociodemographic characteristics of workers, (2) a variable for informal jobs, (3) the number of working hours, (4) a variable for the worker having another job, (5) per capita expenditures on culture interacted with a dummy for artistic cultural workers, (6) interactive binary variables involving place of residence and artistic cultural workers and (7) the predicted probability obtained by the probit model. This probability is estimated based on the likelihood of working in a creative activity, considering both workers from the cultural sector and other workers, controlled by: (1) sociodemographic characteristics of workers, (2) characteristics of their jobs, (3) dummies for the metropolitan regions and (4) willingness of creative workers to work additional hours interacted with the number of hours worked. Our results show that workers in the cultural sector are likely to work longer hours when compared to workers in other sectors. For our wage equation, the results suggest that women earn relatively less than men and blacks earn less than whites. Furthermore, earnings increase with age and the level of education. Formal workers obtain higher earnings when compared to informal ones. Finally, an increase in the per capita public expenditure on the cultural sector raises the income of workers in artistic cultural occupations.     

Effects of concurrent training on interleukin-6, tumour necrosis factor-alpha and C-reactive protein in middle-aged men

The purpose of this study was to evaluate the effects of moderate- to high-intensity resistance and concurrent training on inflammatory biomarkers and functional capacity in sedentary middle-aged healthy men. Participants were selected on a random basis for resistance training (n = 12), concurrent training (n = 11) and a control group (n = 13). They performed three weekly sessions for 16 weeks (resistance training: 10 exercises with 3 × 8-10 repetition maximum; concurrent training: 6 exercises with 3 × 8-10 repetition maximum, followed by 30 minutes of walking or running at 55-85% [Vdot]O(2peak)). Maximal strength was tested in bench press and leg press. The peak oxygen uptake ([Vdot]O(2peak)) was measured by an incremental exercise test. Tumour necrosis factor-α, interleukin-6 and C-reactive protein were determined. The upper- and lower-body maximal strength increase for both resistance (+42.52%; +20.9%, respectively) and concurrent training (+28.35%; +21.5%, respectively) groups (P = 0.0001).[Vdot]O(2peak) increased in concurrent training when comparing pre- and post-training (P = 0.0001; +15.6%). No differences were found in tumour necrosis factor-α and interleukin-6 for both groups after the exercise. C-reactive protein increased in resistance training (P = 0.004). These findings demonstrated that 16 weeks of moderate- to high-intensity training could improve functional capacity, but did not decrease inflammatory biomarkers in middle-aged men.     

Fighting for excellence: the case of the Federal University of Pelotas

This paper investigates the implementation and evaluation of quality management systems within the higher education sector in Brazil. It is based on Institutional and Neo Institutional theories and presents the case of the Federal University of Pelotas, to discuss higher education institutions’ options in a context of wide and complex environmental changes.