Abstract
The purpose of this study was to explore the influence of brand coolness on the intention to acquire NFTs within the luxury fashion market. To achieve this purpose, we developed a conceptual model offering a broader perspective regarding consumers' purchase intention of luxury brands' NFTs by including both emotional aspects related to the brand (brand love) and perceptions predominantly related to the financial nature of the investment (perceived risk). Word-of-mouth (WOM) and willingness to pay (WTP) are also analyzed as outcomes of brand coolness. The model was tested using Partial Least Squares Structural Equation Modeling (PLS-SEM) to examine the proposed relationships. The findings show that brand coolness positively impacts brand love, WOM, and WTP. Although it was not possible to observe a significant relationship between brand coolness and consumers' purchase intention of luxury brands' NFTs, it has significant indirect effects through brand love. Guided by the unexpected findings of the quantitative study, this article also includes a follow-up qualitative study, whose main aim was to further explore the influence of brand coolness on the intention to acquire NFTs within the luxury fashion market. Participants were individuals with relevant knowledge and experience with NFTs. The qualitative study revealed that brand coolness alone is insufficient to drive NFT purchases, while brand love, tied to trust and symbolic value, plays a stronger role, helping explain the quantitative results. Overall, this study contributes to the literature by shedding light on the complex interplay between brand coolness, consumer behavior, and NFTs in the luxury fashion context.

Abstract
Social entrepreneurship is crucial for sustainable development as it blends innovative business models with a focus on economic, social and environmental impact. This synergy can potentially accelerate progress towards the sustainable development goals, creating a more equitable and sustainable future. This study aims to explore this phenomenon by carrying out a systematic review of literature. It is adopted the PRISMA framework to identify 54 relevant studies in this field. The findings characterize the evolution of articles in this field, the number of citations, the relationship between key terms, and the respective clusters. Moreover, seven contributions of social entrepreneurship for sustainable development are identified. Finally, the role of technology in promoting and supporting the interconnection between social entrepreneurship and sustainable development is explored. This study is relevant to enhance understanding of how technology supports social entrepreneurship and helps social entrepreneurs to achieve sustainable development goals.

Abstract
One of the industry’s most common applications of lasers is engraving, which is generally performed on flat surfaces. However, there are many situations where the object to be engraved has an unevenly curved geometry. In those cases, the light power density will be different along the surface for a fixed head, leading to a poor engraving result. This work deals with this problem by designing a robotic application capable of detecting variations on the object surface and automatically creating a trajectory to engrave on it correctly. This was made possible through a robotic manipulator, a time-of-flight distance sensor, and a data processing algorithm over the measured data. Obtained results were acquired using a custom-made test rig and validated by delivering consistent engraving results on irregular surface shapes.

Abstract
Sound design plays an important role in serious games, influencing user experience and learning outcomes. However, deriving general principles and best practices remains challenging, as most literature relies on case-based studies in different application domains. Through a systematic review of the literature, 21 studies were analyzed to address two key questions: 1) what types of serious games and application domains incorporate sound design? and 2) what sound design strategies are implemented to enhance user experience and learning outcomes? The findings show that serious games have mainly focused on education, healthcare, and training, using sound to enhance motivation (50%), cognition (32%), and knowledge acquisition (18%). Furthermore, sound design strategies fulfill distinct roles: sound effects enhance feedback and engagement, background music influences motivation and cognitive processing, ambient sounds support navigation and emotional regulation, and dialogue facilitates knowledge acquisition. The findings highlight the need for further research to establish standardized sound design principles to optimize user experience and learning outcomes in serious games. Copyright © 2025 by SCITEPRESS - Science and Technology Publications, Lda.

Abstract
This paper proposes FLUC, a modular framework that integrates open-source Large Language Models (LLMs) with Unmanned Aerial Vehicle (UAV) autopilot systems to enable autonomous control in Flying Networks (FNs). FLUC translates high-level natural language commands into executable UAV mission code, bridging the gap between operator intent and UAV behaviour. FLUC is evaluated using three open-source LLMs - Qwen 2.5, Gemma 2, and LLaMA 3.2 - across scenarios involving code generation and mission planning. Results show that Qwen 2.5 excels in multi-step reasoning, Gemma 2 balances accuracy and latency, and LLaMA 3.2 offers faster responses with lower logical coherence. A case study on energy-aware UAV positioning confirms FLUC's ability to interpret structured prompts and autonomously execute domain-specific logic, showing its effectiveness in real-time, mission-driven control.

Abstract