Percorrer por data de Publicação, começado por "2025-08-14"
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- Extracellular bioelectrical lexicon: detecting rhythmic patterns within dermal fibroblast populationsPublication . Félix, Rute; Medeiros, Maria do Carmo; Elamine, Youssef; Power, Deborah Mary; Gomes, Henrique LeonelThis study uses a bioelectronic-based method to establish how non-electrogenic cells, like dermal fibroblast, employ bioelectrical signals to convey information. Electrophysiology using large-area Multielectrode Arrays (MEAs) devices revealed how populations of non-electrogenic cells in vitro generate patterns of bioelectrical signals. The period of the bioelectrical patterns depends on cell population activity. In a fully formed, healthy monolayer, bioelectrical activity is minimal. But during the formation of a monolayer, signals appear randomly, with a dominant period of 4.2 min. Occasionally, quasi-periodic bursts occur with a period between 1.6 and 2 min. When a mechanical wound is inflicted and during subsequent monolayer repair, quasi-periodic signal bursts occur, with an average period ranging from 60 to 110 min. The study uncovers a short-range non humoral communication system and a lexicon of bioelectrical signals linked to cell states.
- How do spectator-to-spectator negative interactions lead to a less memorable and recommended sport tourism experience through internal attention and involvement?Publication . Martins, Rute; Monteiro, Patrícia; Campos, Ana Cláudia; Sthapit, Erose; Mascarenhas, MargaridaPurpose – On-site tourist experience co-creation enhances memorability, and the latter precedes tourists’ intention to revisit and recommend the experience/destination to others. However, tourists’ interaction is not always perceived as positive, co-destroying experience value. This study aims to examine the influence of experience value co-destruction on sport tourists’ future behavioral intentions, considering the mediating effects of internal attention, involvement and memorability. Design/methodology/approach – Data were gathered from 254 non-resident spectators at Tudor Nazare´ Tow Surfing Challenge event in Portugal. Findings – The results showed that value co-destruction during a sport tourism experience negatively influences spectators’ internal attention and involvement, which further impacts their memorability and behavioral intentions. Practical implications – Sport event managers should minimize and reverse negative sport tourists’ interactions to enhance the spectators’ attention and involvement in the experience. In addition, to boost the memorability and behavioral intentions, spectators’ involvement should be prioritized through leveraging sport culture and event-generated liminality. Originality/value – This study expanded the research lens of co-destruction of tourist experience value by integrating cognitive psychology and behavioral outcomes, validating the on-site tourist experience co-creation model to co-destruction and extending it to behavioral intentions.
- Mergers and acquisitions: does hiring financial advisors make a difference?Publication . Oliveira, Leandro Rodrigues de; Serra, Fernando Antonio Ribeiro; Ferreira, Manuel Anibal Silva Portugal Vasconcelos; Guerrazzi, Luiz Antonio de CamargoThis study conducts a meta-analysis to address inconsistencies and fragmented understanding regarding the role of financial advisors in mergers and acquisitions (M&A). We aim to quantitatively synthesize existing empirical evidence to clarify the determinants influencing the engagement of financial advisors and, critically, how their characteristics and transaction contexts impact the operational and financial outcomes of M&A deals. Through a systematic literature review and meta-analytic approach, we analyzed 65 empirical studies (articles, theses, and dissertations) to identify and classify variables explaining the selection and influence of financial advisors on M&A performance. Our analysis specifically correlated independent variables measuring financial advisor attributes (e.g., experience, competence, and reputation) with dependent variables reflecting operational performance (transaction completion time) and financial performance (e.g., CAR, SCAR, ROA, ROE, and EBITDA). The findings indicate that the ability to foster positive operational (shorter completion times) and financial outcomes is a primary driver for engaging financial advisors in M&A. Financial advisors demonstrably contribute to more efficient deal closures, higher financial returns, and reduced completion times. The meta-analysis reveals significant moderating effects of financial advisor reputation and M&A complexity (proxied by size) on the relationship between advisor engagement and M&A performance, explaining heterogeneity in prior research. This study significantly advances M&A literature by providing a robust, quantitative synthesis that moves beyond prior inconclusive findings. We demonstrate that financial advisors are critical in navigating M&A complexities, and their effectiveness is contingent upon their reputation and the transaction's inherent complexity. By elucidating these moderating roles, our meta-analysis offers a clearer, more nuanced understanding of when and how financial advisors make a difference, thereby informing both academic theory and practical decision-making in M&A strategy.