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Repositório IC-Online

Institution's Scientific Repository

 

IC-Online, the Institutional Repository of Scientific Information of the Polytechnic of Leiria (IPLeiria), is part of the RCAAP Project (Open Access Scientific Repositories of Portugal). Its main objectives are to organise, preserve and disseminate the scientific production of the Polytechnic of Leiria (IPLeiria), helping to increase the visibility and impact of the institution's scientific publications.

The IC-Online Repository includes various types of digital documents, such as articles from national and international scientific journals, papers from congresses and conferences, master's dissertations and doctoral theses, among others.

Email repositorio@ipleiria.pt

Recent Submissions

A 1.2V 900nW conductance converter
Publication . Miranda, Nuno; Morais, Raul
This article describes a new electrical conductance converter method suitable for very low power applications, where energy constraints prevails over speed and measurement accuracy. Method idea gather voltage time integration and shopper stabilization techniques to process noisy low amplitude signals and to overcome severe limitations of weak inversion channel CMOS circuitry. Main features and tradeoffs are exploited. A 1.2V ASIC implementation on standard 0.35μm CMOS schematics is also presented. Post-layout simulations shows a total power consumption lower than 900nW including current source excitation inherent to the conductance measurement. Such low power consumption allows the measurement of several physical parameters on self-powered wireless networks.
2010-06Conference paper Restricted access Show more
Business Intelligence in higher education: Enhancing the teaching-learning process with a SRM system
Publication . Piedade, Maria Beatriz; Santos, Maribel Yasmina
Promoting students success requires the implementation of processes and mechanisms that allows the closely monitoring of the students academic activities. Although essential, the activities involved in this complex process do not take place in many higher education institutions due to the lack of appropriate practices and an adequate technological support that sustain these practices. To overcome this complex problem, a conceptual and a technological infrastructure was proposed and integrated into a Student Relationship Management (SRM) system. The SRM system is associated with Business Intelligence concepts and technologies used to obtain knowledge about the students and to support the decision making process. To validate the SRM system relevance, a set of applications cases were carried out in real contexts and supported by the implemented prototype. This paper presents some of the results obtained through the prototype implementation and on the analysis of the several actions that were carried out under the principles of the SRM practice.
2010-06Conference paper Restricted access Show more
Unveiling the power of supplier-country image on B2B customers' perceptions: Beyond the product’s beauty
Publication . Crespo, Cátia Fernandes; Crespo, Nuno Fernandes; Silva, Susana C.
Researchers in business-to-business (B2B) sectors often assume that findings regarding country-of-origin (COO) effects on end consumers can be directly applied to the industrial marketing context. This tendency to generalize can result in an inaccurate understanding of how buyers perceive COO information in B2B scenarios. This study investigates the effect of supplier-country image on international customers’ perceptions of both perceived product quality and relationship quality in a B2B market environment. We further examine the consequences of perceived product quality and relationship quality on supplier awareness and customer loyalty. Data collected from 182 international B2B buyers in the Portuguese footwear, molds, and wood products and furniture industries were analyzed using structural equation modeling (SEM). The results indicate that supplier-country image influences the relationship quality dimensions (trust, commitment, and satisfaction) and perceived product quality. Moreover, trust and commitment enhance customer loyalty, while trust and satisfaction leverage supplier awareness. In contrast, perceived product quality only influences customer loyalty, albeit to a weaker extent. Thus, relationship quality plays a more significant role than perceived product quality in influencing supplier awareness and customer loyalty in B2B environments. These results challenge the notion that the impact of COO on end consumers can be equally applied in B2B contexts, and they expand our understanding of how supplier-country image affects relationship quality in the industrial setting. Furthermore, they draw managers’ attention to the importance of mitigating a potentially negative COO image through measures aimed at improving relationships.
2025-01-12Journal article Open access Show more
The Effect of Celebrity Endorsement on Brand Equity: A Cross Cultural Comparison
Publication . Crespo, Cátia Fernandes; Ribeiro, Fábio Matos; Ferreira, Alcina Gaspar; Popa, Victor
Celebrity endorsement has become a popular advertising strategy on a global scale. However, although responses to celebrity endorsement are considered to diverge across cultures, cross-cultural research on celebrity endorsement as an advertising strategy is argued to be scarce. The purpose of this research is to extend the current literature by examining cross-cultural similarities and differences in celebrity endorsement effectiveness. We investigate the impact of celebrity endorsement strategies on brand image and brand identification and how these factors, in turn, influence brand equity, across markets. Data were collected through an online survey addressed to two markets: Portugal, and Moldova. A total of 365 valid answers were obtained, 195 from the Portuguese market, and 170 from the Moldovan market. Partial least squares structural equation modeling was used to test the hypotheses. The results indicate that the attitude toward the celebrity endorser has a significantly positive effect on brand image and a significantly positive effect on brand identification, only in the Moldovan market. In both markets, brand image and brand identification positively influence brand equity.
2024-03-20Journal article Restricted access Show more
Examining the Role of Perceived Source Credibility on Social Media Influencer’s Ascribed Opinion Leadership
Publication . Crespo, Cátia Fernandes; Tille, Melanie
Building on the theoretical framework of the source credibility model, this study aims to investigate how the different dimensions of social media influencer’s (SMI) perceived source credibility, respectively expertise, attractiveness, and trustworthiness impact on influencers’ ascribed opinion leadership, and ultimately affect social media users’ purchase intentions. A cross-cultural analysis focused on the German and Portuguese markets of Instagram users was implemented. Data were collected with an online survey distributed in Germany and Portugal, resulting in a sample of 467 participants, 214 from Germany and 253 from Portugal. Data were analyzed using structural equation modeling with partial least squares (PLS-SEM). Findings confirmed that expertise and attractiveness enhance the influencer’s ascribed opinion leadership. On the contrary, trustworthiness does not influence ascribed opinion leadership. The influencer’s ascribed opinion leadership promotes purchase intention. This study advances influencer marketing literature by deepening our understanding on the influence of online opinion leaders on social media user’s behavioral intentions.
2023-09-26Journal article Restricted access Show more