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Publicações

Publicações por LIAAD

2020

Bone scintigraphy and PET-CT: A necessary alliance for bone metastasis detection in breast cancer?

Autores
Santos, JC; Abreu, MH; Santos, MS; Duarte, H; Alpoim, T; Sousa, S; Abreu, PH;

Publicação
JOURNAL OF CLINICAL ONCOLOGY

Abstract
e13070 Background: Bone is one of the main sites of breast cancer metastasis. Staging of this kind of disease spread can be performed in locally advanced cases with PET-CT in conjunction with Bone Scintigraphy. The purpose of this work is to compare the efficiency of bone metastasis detection between PET-CT and bone scintigraphy. Methods: Prospective analysis of locally advanced breast cancer patients treated in a Comprehensive Cancer Center between 2014 and 2019 that performed PET-CT and Bone Scintigraphy in the staging. Interval between the two exams could not exceed 2 months. Clinical and pathological characteristics of the disease were collected from electronic files and independently clinical images reports were considered to evaluate the ability of each imaging modalities to identify bone disease. In discrepancy cases a re-analysis of the images by two independent nuclear physicians was performed to validate the findings. Results: We analyzed 204 cases. The majority of them had ductal carcinomas (72.5%), cT2/3 (70%), cN1/2(61.8%) and G2/3 (94.6%), luminal B- like, HER2 positive disease (49.2%). In this cohort, bone metastasis was documented in 52 (25.5%) patients. PET-CT presented 97.0% of accuracy, surpassing the 94.1% presented by Bone Scintigraphy. The latter failed to correctly detect bone metastasis in 11 (5.4%) patients and only outperformed PET-CT in 3 (1.5%) patients. The main difference between the two modalities was the non-detection of cranium lesions in PET-CT images. Conclusions: PET-CT showed higher efficiency in bone metastasis detection than Bone Scintigraphy, probably because it detects lytic lesions. The non-detection of cranium ones can be harmful and so modifications in the image acquisition are required to improve the quality of PET-CT, avoiding other exams in bone staging.

2020

Nature-Based Tourism

Autores
Filipe, S; Barbosa, B; Santos, CA;

Publicação
Advances in Hospitality, Tourism, and the Services Industry - Global Opportunities and Challenges for Rural and Mountain Tourism

Abstract
This chapter is based on consumer behavior theories and analyses consumers' perspectives about camping as a tourism alternative. It explores motivations and several relevant factors that influence the attitudes and behaviors of tourists regarding camping activities. The methodology was qualitative and used focus groups as a data collection tool. A content and thematic analysis was adopted as data mining technique. Results provide empirical support to the influence of subjective norms, relevant others' preference for camping, and sustainable consumer profile on attitudes toward camping which influence camping intention. Moreover, camping intention, motivations, relevant others' preference for camping, perceived control, and past experience affect camping behavior. Overall, this chapter shows that consumer behavior theories and models provide very interesting cues on campers' decision process, offering alternative and complementing views to the extant literature, namely to the studies using the popular push-pull approach.

2020

A CLOSER LOOK AT VET EDUCATION THROUGH THE LENSES OF SUSTAINABLE DEVELOPMENT GOALS

Autores
Barbosa, B; Benedicto, B; Amaral Santos, C; Filipe, S; Costa, F; Melo, A; Paiva Dias, G; Rodrigues, C;

Publicação
ICERI Proceedings - ICERI2020 Proceedings

Abstract
This paper aims to study the perceptions of Vocational Education and Training (VET) students and VET teachers about the image of vocational education in Portugal and the contributions of VET to the achievement of the goals set in the 2030 Agenda. For this purpose, a qualitative study was conducted in Portugal in 2020 with a sample of 5 former VET students and 12 VET teachers. The objective was for participants to provide their views, experiences, and opinions on the inclusiveness and quality of VET education at the secondary level and how it may contribute to students’ lifelong opportunities, employability, and social inequality reduction. Various perspectives were offered, including divergent views between teachers and students. Topics such as equity, stigma, social status, employability and empowerment resulting from professional recognition, namely due to continuing studies at a higher level, were also discussed. Overall, this study provides valuable insights on the possible roles of VET in what concerns the 2030 Agenda, demonstrating that this topic deserves urgent attention from researchers.

2020

VOCATIONAL EDUCATION AND TRAINING VS. GENERAL EDUCATION: THE INFLUENCE OF THE SOCIOECONOMIC CONTEXT ON STUDENTS' CHOICES

Autores
Traqueia, A; Nogueira, S; Barbosa, B; Costa, F; Dias, GP; Filipe, S; Melo, A; Rodrigues, C; Santos, CA;

Publicação
14TH INTERNATIONAL TECHNOLOGY, EDUCATION AND DEVELOPMENT CONFERENCE (INTED2020)

Abstract
Despite the growing popularity of Vocational Education and Training (VET), which is mainly oriented towards labour market inclusion, literature shows that there is still stigmatization and association of those programmes with lower quality training offers when compared to the so-called general secondary education. The main aim of this article is to shed light on the differences in students' sociodemographic profiles between the two education alternatives. It adopts a quantitative approach, exploring secondary data collected by national (e.g., Ministry of Education) and international (e.g., OECD) organizations regarding secondary education students in Portugal. Results confirm that students in VET secondary education have a different sociodemographic profile, namely in terms of income, parents' academic qualifications and professional activities, thus presenting a clear lower social status than students in general secondary education. Indeed, VET is more common in Portuguese secondary schools with a student population originating from more disadvantaged socioeconomic backgrounds. This study also highlights the limitations of the available secondary data, suggesting a set of variables and hypotheses built on contributions from extant literature that may enable a better understanding of the reasons behind the differences in students' profiles. Implications for schools and decision makers, as well as suggestions for future research, are also presented.

2020

THE VET SUCCESS PARADOX: BETWEEN EMPLOYABILITY AND CONTINUATION OF STUDIES

Autores
Nogueira, S; Traqueia, A; Barbosa, B; Costa, F; Dias, GP; Filipe, S; Melo, A; Rodrigues, C; Santos, CA;

Publicação
14TH INTERNATIONAL TECHNOLOGY, EDUCATION AND DEVELOPMENT CONFERENCE (INTED2020)

Abstract
Despite the existence of Vocational Education and Training (VET) programmes allowing dual certification (general school and vocational diplomas), the main aim of vocational courses is arguably the insertion of young people in the labour market. Still, there is a diversification of pathways for upper secondary vocational students, including continuing studies at a tertiary level. In fact, international statistics point to the increased number of vocational students that choose to pursue studies at a higher level, encouraged, among several motivations, by the quest for social mobility. Despite the relevance of this theme, studies that explore students' pathways after the completion of upper secondary vocational education are still scarce. To fill this gap, the paper synthesizes and reviews literature contributions with the purpose of identifying the factors that explain the adoption of each of the pathways (working, continuing to study or neither) by upper secondary education VET students. As a result, the article discusses a list of factors associated with career choices after completion of VET secondary studies and proposes a set of questions for future research. Overall, this paper shows that VET deserves urgent consideration by researchers and offers valuable insights for academics, students, parents and decision makers alike.

2020

There is no one way to internationalization at home: Virtual mobility and student engagement through formal and informal approaches to curricula [Il n’a pas une solution unique pour l’internationalisation à la maison: Mobilité virtuelle et implication des étudiants dans des approches curriculaires formelles et informelles] [Não há uma forma única para a internacionalização em casa: Mobilidade virtual e envolvimento dos estudantes em abordagens formais e informais dos curricula] [No hay una forma única de internacionalización en casa: Movilidad virtual y envolvimiento de los estudiantes a través de enfoques formales e informales de los curricula]

Autores
Barbosa, B; Santos, C; Prado Meza, CM;

Publicação
Revista Lusofona de Educacao

Abstract
Internationalization at Home (IaH) is the most accessible approach for internationalizing education, as it does not involve mobility or considerable investment. This article discusses results of two distinct IaH initiatives: a 4-week collaboration between students from a Portuguese university and a Mexican university, and a set of activities conducted throughout one semester in a multicultural classroom in one Portuguese university. The analysis shows that, despite the clear differences of the two initia-tives, they provided very interesting outcomes, with students recogniz-ing the development of intercultural communication skills and other soft skills, which were perceived as adding value to the learning process and to their future professional careers.

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