Interoperability and Information Integration in an Early Online Academic Digital Library of Theses and Dissertations: The Case of BTD     

Roberto Carlos dos Santos Pacheco  Vinícius Medina Kern  Paulo Henrique S. Bermejo 《International Information and Library Review》2003,35(2-4):319

Cooperative organization has been proposed as a means to improve the usefulness of virtual libraries. Information interchange among library and other academic applications is often hindered by the lack of application interoperability. This hindrance may be overcome through the development of standards that allow for digital libraries to exchange and share information with other applications. The Graduate Program in Production Engineering (PPGEP) of the Federal University of Santa Catarina (UFSC) launched its Theses and Dissertations Bank (BTD) in 1995. BTD is possibly the first online academic digital library of theses. From a digital document repository, BTD evolved into a system that combines bibliometry and informetry features. BTD is used by students and faculty in their research activities, but also by decision makers from industry and academia. They use it, respectively, to search for specialists and to measure interest and knowledge interchange among PPGEP research areas. This article presents the history, features, and development prospects for the BTD project. The integration of BTD with other academic applications, especially those of the Brazilian national science and technology platform, is emphasized.  相似文献   

Development and construct validation of an inventory for assessing the home environment for motor development     

Rodrigues LP  Saraiva L  Gabbard C 《Research quarterly for exercise and sport》2005,76(2):140-148

A contemporary view of early childhood motor development considers environmental influences as critical factors in optimal growth and behavior, with the home being the primary agent. However, there has been minimal research examining the relationship between motor development and the home. The present study addresses this gap with the goal of creating an innovative parental self-report instrument to assess the quality and quantity of factors (affordances and events) in the home that are conducive to enhancing motor development in children ages 18-42 months. Following initial face validity determination, expert opinion feedback and selective pilot testing, construct validity was examined using 321 Portuguese families. Factor analysis techniques were used to: (a) compare competingf actorial models according to previous theoretical assumptions, and (b) analyze the fit of the preferred model. Of the five plausible models tested, the five-factor solution provided the best fit to the data. Reliability was established through the scale reliability coefficient with a value of .85. The findings of this study suggest that the Affordances in the Home Environment for Motor Development Self-Report is a valid and reliable instrument to assess how well home environments afford movement and potentially promote motor development.  相似文献   

Dominant–non-dominant asymmetry of kicking a stationary and rolling ball in a futsal context     

Fabio Augusto Barbieri  Lilian Teresa Bucken Gobbi  Paulo Roberto Pereira Santiago  Sergio Augusto Cunha 《Journal of sports sciences》2015,33(13):1411-1419

The aim of this study was to analyse the characteristics of the asymmetries in the dominant and non-dominant limbs when kicking stationary and rolling balls. Ten experienced Brazilian amateur futsal players participated in this study. Each participant performed kicks under two conditions (stationary ball vs. rolling ball) with the dominant and non-dominant limbs (five kicks per condition per limb). We analysed the kicking accuracy, ball and foot velocities, angular joint displacement and velocity. The asymmetry between the dominant and non-dominant limbs was analysed by symmetry index and two-way repeated measures ANOVA. The results did not reveal any interaction between the condition and limb for ball velocity, foot velocity and accuracy. However, kicking with the dominant limb in both kicks showed higher ball velocity (stationary ball: dominant – 24.27 ± 2.21 m · s^?1 and non-dominant – 21.62 ± 2.26 m · s^?1; rolling ball: dominant – 23.88 ± 2.71 m · s^?1 and non-dominant – 21.42 ± 2.25 m · s^?1), foot velocity (stationary ball: dominant – 17.61 ± 1.87 m · s^?1 and non-dominant – 15.58 ± 2.69 m · s^?1; rolling ball: dominant – 17.25 ± 2.26 m · s^?1 and non-dominant – 14.77 ± 2.35 m · s^?1) and accuracy (stationary ball: dominant – 1.17 ± 0.84 m and non-dominant – 1.56 ± 1.30 m; rolling ball: dominant – 1.31 ± 0.91 m and non-dominant – 1.97 ± 1.44 m). In addition, the angular joint adjustments were dependent on the limb in both kicks (the kicks with non-dominant limb showed lower hip external rotation than the kicks with the dominant limb), indicating that the hip joint is important in kick performance. In conclusion, the kicks with the non-dominant limb showed different angular adjustments in comparison to kicks with the dominant limb. In addition, kicking a rolling ball with the non-dominant limb showed higher asymmetry for accuracy, indicating that complex kicks are more asymmetric.  相似文献   

Mathematical competence for all: Options, implications and obstacles     

Paulo Abrantes 《Educational Studies in Mathematics》2001,47(2):125-143

In the recent evolution of Portuguese basic education, the concept of competence and the process of curriculum development became major aspects of an innovative movement at a national level. Concerning school mathematics, this evolution provided an opportunity to explore the way in which mathematical competence for all could be defined and interpreted with the purpose of abandoning a technique-oriented view of the curriculum and the process of developing it. After describing the context and exploring the concept of competence, this paper presents a formulation for the characteristics of mathematical competence for all and discusses some of its implications. Finally, the paper tries to identify the obstacles that tend to emerge when such an approach is proposed in the context of a national curriculum. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

Engaging plant anatomy and local knowledge on the buriti palm (<Emphasis Type="Italic">Mauritia flexuosa</Emphasis> L.f.: Arecaceae): the microscopic world meets the golden grass artisan’s perspective     

Rebeca V. R. Viana  Vera L. Scatena  Mayra T. Eichemberg  Paulo T. Sano 《Cultural Studies of Science Education》2018,13(1):253-265

Considering that both Western Science and Local Knowledge Systems share a common ground—observations of the natural world—the dialogue between them should not only be possible, but fruitful. Local communities whose livelihoods depend on traditional uses of the local biodiversity not only develop knowledge about nature, making several uses of such knowledge, but, with that process, several inquiries about nature can be raised. Here we present our experience with the engagement of Western Science with golden grass artisan’s knowledge about the buriti palm (M. flexuosa). We applied 25 semi-directive interviews, combined with field diary and participative observation, in two quilombola communities from Jalapão region (Central-Brazil). One of the inquiries that emerged from the artisan’s perspectives was about the differences between male and female buriti palms’ fiber. We then engaged both local and scientific perspectives regarding this issue using plant anatomy as a dialogue instrument. Here we describe this experience and resort to Paulo Freire’s ideas on dialogue to argue that, to integrate Western Science and Local Knowledge Systems in a collaborative and contextualized perspective, the research should be faced as a mutual learning practice.  相似文献   

The effectiveness of Web search engines for retrieving relevant ecommerce links     

Bernard J. Jansen  Paulo R. Molina 《Information processing & management》2006

Ecommerce is developing into a fast-growing channel for new business, so a strong presence in this domain could prove essential to the success of numerous commercial organizations. However, there is little research examining ecommerce at the individual customer level, particularly on the success of everyday ecommerce searches. This is critical for the continued success of online commerce. The purpose of this research is to evaluate the effectiveness of search engines in the retrieval of relevant ecommerce links. The study examines the effectiveness of five different types of search engines in response to ecommerce queries by comparing the engines’ quality of ecommerce links using topical relevancy ratings. This research employs 100 ecommerce queries, five major search engines, and more than 3540 Web links. The findings indicate that links retrieved using an ecommerce search engine are significantly better than those obtained from most other engines types but do not significantly differ from links obtained from a Web directory service. We discuss the implications for Web system design and ecommerce marketing campaigns.  相似文献   

Perception of career barriers: The importance of gender and ethnic variables     

Paulo Cardoso  José Ferreira Marques 《International Journal for Educational and Vocational Guidance》2008,8(1):49-61

Differences of gender and ethnicity were examined in terms of the perception of barriers to career development. The Perception of Career Barriers Inventory (IPBC) was administered to a sample of 457 ninth grade students in Portuguese state schools. Gender differences were found, with girls generally scoring higher and in particular on some specific scales. African ethnic participants score higher than Portuguese participants across all the IPBC scales. These findings are more obvious with African participants born in Africa than with those born in Portugal. Implications for future research and practice are discussed.  相似文献   

Reading and spelling acquisition in European Portuguese: a preliminary study     

Sandra Fernandes  Paulo Ventura  Luís Querido  José Morais 《Reading and writing》2008,21(8):805-821

We investigated the initial development of reading and spelling in European Portuguese. First-graders, tested in February and June, had to read and spell words and pseudowords. In February there were regularity and graphemic complexity effects, indicating that these children relied on grapheme–phoneme conversion. The lexicality effect found in spelling, in June, suggest that by the end of first grade these children had begun to construct an orthographic lexicon. However, lexical addressing is not inconsistent with phonological mediation as regularization errors increased between the sessions. Additionally, the previously reported similarity in global performance of Portuguese and French beginning readers may conceal processing differences that are related to specific characteristics of the corresponding orthographic codes.

Sandra FernandesEmail:

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Introduction to the Treatment of Non-Linear Effects Using a Gravitational Pendulum     

Klaus Weltner  Antonio Sergio C. Esperidião  Paulo Miranda 《Science & Education》2004,13(7-8):611-629

We show that the treatment of pendulum movement, other than the linear approximation,may be an instructive experimentally based introduction to the physics of non-lineareffects. Firstly the natural frequency of a gravitational pendulum is measured as functionof its amplitude. Secondly forced oscillations of a gravitational pendulum are investigatedexperimentally without limiting amplitudes. By this arrangement new phenomena, thebistability and the jump-effect, can be observed. In the case of bistability the drivengravitational pendulum can oscillate in two different stable modes. Either it oscillateswith a small amplitude and approximately in phase with the exciting torque or it oscillateswith a larger amplitude and approximately anti-phase. The jump effect is the spontaneoustransition from one mode of oscillation to the other. Both effects can be demonstrated andexplained.  相似文献   

A Critique of the external product evaluation of the brazilian system of undergraduate education     

da Rocha Bastos  Lilia  Michael  William Burton  de Oliveira  Denize Torres 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2001,47(1-2):151-158

International Review of Education -  相似文献