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- A new equipment for automatic calibration of the Semmes-Weinstein monofilamentPublication . Castro-Martins, Pedro; Pinto-Coelho, LuisDiabetic foot is a complication that carries a considerable risk in diabetic patients. The consequent loss of protective sensitivity in the lower limbs requires an early diagnosis due to the imminent possibility of ulceration or amputation of the affected limb. To assess the loss of protective sensitivity, the 10 gf Semmes-Weinstein (SW) monofilament is the most used first-line procedure. However, the used device is most often non-calibrated and its feedback can lead to decision errors. In this paper we present an equipment that is able to automatically conduct a metrological verification and evaluation of the 10 gf SW monofilament in the assessment of the loss of protective sensitivity. Additionally, the pro posed equipment is able to simulate the practicioner’s procedure, or can be used for training purposes, providing force-feedback information. After calibration, displacement vs. buckling force contours were ploted for three distinct monofilaments, confirming then ability of the equipment to provide fast, detailed and precise information.
- Towards a pneumatic insole concept to offloading plantar pressure in diabetic foot pathologyPublication . Castro-Martins, Pedro; Pinto-Coelho, Luis; Vaz, Mário; Marques, ArcelinaDiabetic foot is a serious complication of diabetes that affects millions of people worldwide. It is characterized by poor circulation, nerve damage and high plantar pressure that can lead to the development of foot ulcers and amputations. Offloading plantar pressure in certain regions is extremely important. In this paper we propose a preliminary methodology for a new concept of a pneumatic insole to offloading pressure on critical points in the plantar region of the diabetic foot. It is expected that this pneumatic insole will have an intelligent and differentiated performance in result of the pressures imposed inside the shoe. The proposed methodology consists of producing an insole with pockets, located in critical regions of the foot, which can be inflated with air to maintain a stable pressure. If any region is identified with a pressure above the defined threshold, these pockets can empty until the pressure is uniform. This pneumatic insole will promote a better redistribution of plantar pressure in the diabetic foot, it does not add significant weight or volume to the shoe and should bring greater comfort to the user.
- Emerging advancements for virtual and augmented reality in healthcarePublication . Coelho, Luis; Queirós, Ricardo; Reis, Sara SeabraWithin the last few years, devices that are increasingly capable of offering an immersive experience close to reality have emerged. As devices decrease in size, the interest and application possibilities for them increase. In the healthcare sector, there is an enormous potential for virtual reality development, as this technology allows, on the one hand, the execution of operations or processes at a distance, decoupling realities; and on the other hand, it offers the possibility of simulation for training purposes, whenever there are contexts of risk to the patient or to the health professional. However, virtual reality devices and immersion in virtual environments still requires some improvement as complaints such as headaches and nausea are still common among users, and so continuous research and development is critical to progress the technology. Emerging Advancements for Virtual and Augmented Reality in Healthcare synthesizes the trends, best practices, methodologies, languages, and tools used to implement virtual reality and create a positive user experience while also discussing how to implement virtual reality into day-to-day work with a focus on healthcare professionals and related areas. The application possibilities and their impact are transversal to all areas of health and fields such as education, training, surgery, pain management, physical rehabilitation, stroke rehabilitation, phobia therapy, and telemedicine. Covering topics such as mental health treatment and virtual simulations, it is ideal for medical professionals, engineers, computer scientists, researchers, practitioners, managers, academicians, teachers, and students.
- The importance of ethical reasoning in next generation tech educationPublication . Reis, Sara; Coelho, Luis; Sarmet, Max; Araújo, Joana; Corchado, Juan M.Artificial intelligence (AI) is having a profound impact on human life, with both benefits and drawbacks in the societal, environmental, and technological realms. However, the ethical implications of AI are often not addressed in technology education, leaving future professionals with a lack of awareness in this area. This is concerning, as AI has the potential to greatly information delivery and affect human thinking, interaction, decision-making, and communication. To address these issues, there is a need for a framework to guide and help future AI developers make ethically responsible decisions. In this paper we propose a framework to foster ethical awareness and promote respect for human dignity and well-being, while also preventing harm. It is designed to be incorporated into technology education, ensuring that future professionals are equipped to navigate the ethical implications of AI. By prioritizing ethical reasoning in technology education, we can build a better and more responsible AI industry, ensuring that AI can provide benefits for society and does not cause harm. Additionally, a tech industry that values ethics and social responsibility will be better equipped to build technology that serves the public interest, rather than solely maximizing profits. Teaching ethical reasoning in technology education is a crucial step in preparing future professionals to make informed and ethical decisions in the development and use of AI systems. It will lead to a better and more responsible AI industry that benefits all of society.
- A low resource skeleton maturation estimation system for automatic hand X-Ray assessment in pediatric applicationsPublication . Campos, Ana; Silva, Maria; Azeredo, Ricardo; Coelho, Luis; Reis, Sara; Abreu, SílviaThe assessment of differences between skeletal age and chronological age in childhood is often based on the comparison of the patient's left hand x-ray with a reference atlas, performed by a experienced professional. This procedure involves a manual image analysis, that can be subject to inter rater variability posing several problems for clinical applications. In this paper a new methodology for skeleton maturation estimation based on automatic hand X-ray assessment for pediatric applications on a low resource devices (e.g. mobile device) is proposed. The pipeline covers hand-area estimation and bone-area estimation to achieve maturation scores which are then indexed with references images, separately for male and female. The proposed approach is based on simple image processing functions always bearing in mind the application on a mobile context. The involved steps are thoroughly presented and all the used functions are explained. The performance of the system was then evaluated using the complete pipeline. The obtained results pointed to an average error rate of 15,38±3,31%, which is subject to improvements. In particular, contrast enhancement in some lower quality images still offers some challenges.
- Smart computer-assisted teaching: an innovative approach to personalized educationPublication . Coelho, Luis; Reis, Sara SeabraSmart Computer-Assisted Teaching (SCAT) has emerged as a response to the challenges of traditional classroom teaching, which can often be rigid, one-size-fits-all, and unable to accommodate the unique needs and learning styles of individual students. With the rapid advancements in technology, especially in artificial intelligence (AI) and machine learning (ML), educators and researchers have recognized the potential of using intelligent computer systems to augment and enhance traditional teaching methods. SCAT leverages these technological innovations to provide students with personalized and adaptive learning experiences. The key benefits of smart computer-assisted teaching are the possibility of personalization, fast feedback and assessment, and enhanced collaboration. AI and ML algorithms can be used to analyze student data, identify their individual learning needs, and provide targeted feedback and support. These systems are designed to adapt to the pace and style of learning of each student and provide them with personalized learning pathways that are tailored to their needs and abilities. SCAT has the potential to transform the way we educate students, providing them with more personalized and effective learning experiences that can help them to achieve their full potential and can better prepare students for the demands of the 21st century.
- Towards an in-shoe pneumatic insole to plantar injury prevention in diabetic footPublication . Castro-Martins, Pedro; Coelho, Luis; Vaz, Mário; Pinto, Marcelino; Marques, Maria ArcelinaDiabetic foot is a serious complication of diabetes that affects millions of people around the world. It is characterized by poor circulation, nerve damage and high plantar pressure that can lead to the development of foot ulcers and amputations. Offloading plantar pressure in certain regions is extremely important. In this paper we propose a preliminary methodology for a new concept of pneumatic insole for plantar pressure offloading. It consists of an insole with pockets, located in critical regions of the diabetic foot, which can be inflated or deflated to maintain adequate pressure. The main goal of this work is to select the most suitable fluid for the system and that provides a better applicability for this new solution, describing its pros and cons. When analyzing the results, the use of compressed air as a fluid to regulate the pressure in the insole pockets stood out as the most appropriate and advantageous option compared to other gaseous or liquid fluids. Liquid fluids have negative aspects, such as the risk of damaging electronic components in case of leaks and the need for additional reservoirs. In addition, air has a better thermal insulation capacity and does not pose a risk of toxicity, an important aspect for a system that will be in direct contact with the diabetic foot. The availability and zero cost of air, its lightness, and the absence of the need for reservoirs make the pneumatic insole more accessible and low cost, also providing greater cushioning, shock absorption and pressure redistribution.
- Success Factors in the Application of Lean and Six-Sigma Methodologies to Healthcare: A Literature ReviewPublication . Queijo, Ana Rita; Reis, Sara Seabra dos; Coelho, Luis; Pinto Ferreira, Luís; Silva, FranciscoTo provide a safe and fair-value health service that ensures quality, hospitals must provide efficient processes, trained and committed personnel, appropriate technology and a strategic platform which integrates these aspects effectively. At present, a broad set of tools and methodologies are available, associated to the reconfiguration of processes for enhancing efficiency and enabling excellence and sustainability. Of these, the most noteworthy are Lean and Six-Sigma methodologies. A literature review was performed covering the implementation of these methodologies in health services over the last 5 years. The aim was to determine the current approach in this sector and propose guidelines aligned with the future challenges and the needs of healthcare managers. The influence of team management strategies in the final project outcomes has also been addressed representing a novelty.
- Speech- and Language-Based Classification of Alzheimer’s Disease: A Systematic ReviewPublication . Vigo, Inês; Coelho, Luis; Reis, Sara Seabra dosBackground: Alzheimer’s disease (AD) has paramount importance due to its rising prevalence, the impact on the patient and society, and the related healthcare costs. However, current diagnostic techniques are not designed for frequent mass screening, delaying therapeutic intervention and worsening prognoses. To be able to detect AD at an early stage, ideally at a pre-clinical stage, speech analysis emerges as a simple low-cost non-invasive procedure. Objectives: In this work it is our objective to do a systematic review about speech-based detection and classification of Alzheimer’s Disease with the purpose of identifying the most effective algorithms and best practices. Methods: A systematic literature search was performed from Jan 2015 up to May 2020 using ScienceDirect, PubMed and DBLP. Articles were screened by title, abstract and full text as needed. A manual complementary search among the references of the included papers was also performed. Inclusion criteria and search strategies were defined a priori. Results: We were able: to identify the main resources that can support the development of decision support systems for AD, to list speech features that are correlated with the linguistic and acoustic footprint of the disease, to recognize the data models that can provide robust results and to observe the performance indicators that were reported. Discussion: A computational system with the adequate elements combination, based on the identified best-practices, can point to a whole new diagnostic approach, leading to better insights about AD symptoms and its disease patterns, creating conditions to promote a longer life span as well as an improvement in patient quality of life. The clinically relevant results that were identified can be used to establish a reference system and help to define research guidelines for future developments.
- Natural language processing and cloud computing in disease prevention and managementPublication . Ferreira, Ricardo; Gregório, Pedro; Coelho, Luis; Reis, Sara SeabraRecent studies show the high prevalence of the use of messaging platform and its growth trend, especially in younger populations (Figueroa Jacinto and Arndt 2018). Messaging apps are used not only to communicate and stay in touch with family and friends, but also to access services. Interactions with commercial purposes, such as making purchases, seeking out assistance and customer support, providing feedback or making reservations are already widely used, but legal and healthcare related areas also present prominent growth (Eeuwen 2017). In this chapter it is our objective to explore how technologies such as natural language processing, speech recognition, text-to-speech, machine learning, and cloud computing can be integrated to develop high quality chatbots for healthcare purposes. Additionally, we will cover an application case based on COVID-19 prevention and management.