The Mathematics Laboratory in Engineering Studies

This paper describes the setting up of a Mathematics Laboratory which could help to complement the theoretical teaching of this subject by presenting real situations similar to those the Engineering student wilt encounter in future.     

Coping with methods for delineating emerging fields: Nanoscience and nanotechnology as a case study

Proper field delineation plays an important role in scientometric studies, although it is a tough task. Based on an emerging and interdisciplinary field nanoscience and nanotechnology– this paper highlights the problem of field delineation. First we review the related literature. Then, three different approaches to delineate a field of knowledge were applied at three different levels of aggregation: subject category, publication level, and journal level. Expert opinion interviews served to assess the data, and precision and recall of each approach were calculated for comparison. Our findings confirm that field delineation is a complicated issue at both the quantitative and the qualitative level, even when experts validate results.     

Effect of resistance training with different frequencies and subsequent detraining on muscle mass and appendicular lean soft tissue,IGF-1, and testosterone in older women

Objective: To analyse the effect of resistance training (RT) frequency on muscle mass, appendicular lean soft tissue, insulin-like growth factor 1 (IGF-1), testosterone, and their changes with detraining in older women. Methods: Forty-five physically independent older women (≥ 60?years) were randomly assigned to perform RT either two (G2X, n = 21) or three times/week (G3X, n = 24), during 12?weeks (8 exercises, 1 set of 10–15 repetition maximum). Muscle mass and appendicular lean soft tissue, IGF-1, testosterone, and dietary intake were measured at pre-training, post-training, and after detraining (12?weeks). Results: Muscle mass and appendicular lean soft tissue significantly increased post-training (G2X?=?+5.5% and G3X?=?+5.8%, P?P?P?Conclusion: We conclude that lower RT frequency is as effective as higher frequency to improve muscle mass and appendicular lean soft tissue, and to maintain testosterone and IGF-1. Additionally, detraining may reduce testosterone regardless of RT frequency. These results are specifically for community-dwelling older women and may not be generalized to other populations.     

Analysis of the distances covered and technical actions performed by professional tennis players during official matches

The purpose of this study was to analyse the physical and technical performances of professional tennis players during official matches. The trajectories of eight players were obtained during matches, using an automatic tracking method. The distances covered and technical performances were analysed for the first and second sets. The athletes covered (mean ± standard deviation) a total of 1702.4 ± 448.2 m in the first set, 1457.6 ± 678.1 m in the second set and 3160.0 ± 880.1 in the entire match. No differences were found between the sets for the physical variables (lateral and forward displacements, distance covered per rally, per game and per set, and the percentage of time spent in each range of velocity). However, the distances covered by the athletes during the rallies in which they were serving (median = 5.2; interquartile range (IQR) = 6.7 m) were statistically smaller than when they were returning (median = 6.2; IQR = 7.7 m). Forehand ground stroke proficiency decreased from the first (mean ± standard deviation: 75.2 ± 4.11%) to the second set (mean ± standard deviation = 65.5 ± 14.3%). In conclusion, tennis players did not present reduced physical performance from the first to the second set.     

Analysis of the consumption of artistic-cultural goods and services in Brazil

This work aims to evaluate the determinants of the consumption of artistic-cultural goods and services in Brazil, conceiving this consumption as an activity with positive effects on the consumer and on the society as a whole. Using the human capital approach, we estimate a model in which the expenditures on artistic-cultural goods and services depend on socio-economic, educational and socio-demographic characteristics of the head of the household, and on variables that indicate the location of the household. The results indicate that artistic-cultural expenditures are strongly determined by income and by the education of the consumer. Furthermore, the expenditure differs regionally, which may occur due to supply variations or historic-cultural distinctions.     

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.     

Chemical Engineering and Environmental Engineering Education in Hungary

Engineering education has more than 200 years of tradition in Hungary. Chemical engineers are trained at the Technical University of Budapest (TUB) and at the University of Veszprém. The curriculum of the TUB chemical engineering education is given. Undergraduate environmental engineering education is offered at the University of Miskolc, at the Janus Pannonius University in Pécs and at the University of Veszprém. Curricula of the latter two are given. The TUB has several environmental specialization opportunities for engineering students, but at present no separate undergraduate environmental engineering education is offered. Such a curriculum is now under preparation and will be introduced in 1998. Several technical colleges also offer environmental engineering education, where the duration of the training is 3 years. Postgraduate education is a very suitable form to add environmental knowledge to the existing engineering knowledge of graduate engineers. The TUB and the universities in Miskolc and Veszprém are all very active in this field.     

Students in Higher Education Governance: The Portuguese case

This article aims at analysing and discussing student participation in Portuguese higher education institutions and, specifically, in university governance. In a first moment, it describes this participation under both the previous (1988–2007) and the new legal frameworks (since 2007). A discussion of the changes introduced by this last framework and the extent to which it has contributed to the erosion of student participation in governance is undertaken. Next, the article deals with the ways students are involved in quality assessment at both its systemic and institutional levels. The case of a specific Portuguese university is used as an example of how this involvement takes place. The article concludes with a discussion on the main features of Portuguese student participation in governance, focusing on its effectiveness and suggesting measures for improvement.

     

Models for antecedents of turnover intention and behavior among Brazilian employees

International Journal for Educational and Vocational Guidance - Studies indicate that the costs resulting from voluntary turnover range from 93 to 200% of the annual salary for a single position,...