30,869 results on '"Raposo A"'
Search Results
152. Ultrasound Despeckling With GANs and Cross Modality Transfer Learning.
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Diogo Fróis Vieira, Afonso Raposo, António Azeitona, Manya V. Afonso, Luís Mendes Pedro, and João M. Sanches
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- 2024
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153. Structured light for touchless 3D registration in video-based surgical navigation.
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Tânia Baptista, Miguel Marques, Carolina Raposo, Luis Ribeiro 0003, Michel Antunes, and João Pedro Barreto 0001
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- 2024
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154. Herpes Zoster Oftálmico e Lombossacral: relato de caso raro de acometimento simultâneo
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de Albuquerque Costa, Mônica, Boa Sorte Costa, Isabella, Vieira de Andrade, Maria Cristina, de Oliveira Werneck Rodrigues, Daniela, Santos Freire, Érika, and Barbosa Raposo, Nádia Rezende
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- 2023
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155. Aveiro Tech City Living Lab: A Communication, Sensing and Computing Platform for City Environments
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Rito, Pedro, Almeida, Ana, Figueiredo, Andreia, Gomes, Christian, Teixeira, Pedro, Rosmaninho, Rodrigo, Lopes, Rui, Dias, Duarte, Vítor, Gonçalo, Perna, Gonçalo, Silva, Miguel, Senna, Carlos, Raposo, Duarte, Luís, Miguel, Sargento, Susana, Oliveira, Arnaldo, and de Carvalho, Nuno Borges
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Computer Science - Networking and Internet Architecture ,C.2.1 - Abstract
This article presents the deployment and experimentation architecture of the Aveiro Tech City Living Lab (ATCLL) in Aveiro, Portugal. This platform comprises a large number of Internet-of-Things devices with communication, sensing and computing capabilities. The communication infrastructure, built on fiber and Millimeter-wave (mmWave) links, integrates a communication network with radio terminals (WiFi, ITS-G5, C-V2X, 5G and LoRa(WAN)), multiprotocol, spread throughout 44 connected points of access in the city. Additionally, public transportation has also been equipped with communication and sensing units. All these points combine and interconnect a set of sensors, such as mobility (Radars, Lidars, video cameras) and environmental sensors. Combining edge computing and cloud management to deploy the services and manage the platform, and a data platform to gather and process the data, the living lab supports a wide range of services and applications: IoT, intelligent transportation systems and assisted driving, environmental monitoring, emergency and safety, among others. This article describes the architecture, implementation and deployment to make the overall platform to work and integrate researchers and citizens. Moreover, it showcases some examples of the performance metrics achieved in the city infrastructure, the data that can be collected, visualized and used to build services and applications to the cities, and, finally, different use cases in the mobility and safety scenarios.
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- 2022
156. Atherosclerosis antigens as targets for immunotherapy
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Raposo-Gutiérrez, Irene, Rodríguez-Ronchel, Ana, and Ramiro, Almudena R.
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- 2023
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157. Characterization of enamel developmental defects in patients with orofacial clefts and their relationship to surgical procedures
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Farias, Aline, Rojas-Gualdrón, Diego Fernando, Restrepo, Manuel, Zecchin, Karina Gottardello, Bussaneli, Diego Girotto, Yupanqui, Kasandra, Raposo-Amaral, Cassio Eduardo, and dos Santos-Pinto, Lourdes
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- 2023
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158. The Use of Facial Recognition Technology by Law Enforcement in Europe: a Non-Orwellian Draft Proposal
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Raposo, Vera Lúcia
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- 2023
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159. Predictors of very early death in acute promyelocytic leukemia: a retrospective real-world cohort study
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Infante, Joana, Esteves, Graça, Raposo, João, and de Lacerda, João Forjaz
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- 2023
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160. 3D point cloud denoising using anisotropic neighborhoods and a novel sharp feature detection algorithm
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Hurtado, Jan, Gattass, Marcelo, and Raposo, Alberto
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- 2023
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161. Romanovski polynomials in selected physics problems
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Raposo Alvaro, Weber Hans, Alvarez-Castillo David, and Kirchbach Mariana
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romanovski polynomials ,scarf potential ,rosen-morse potential and random matrices ,orthogonality ,02.30.gp ,02.30.hq ,02.30.jr ,03.65.ge ,Physics ,QC1-999 - Published
- 2007
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162. Efficacy of health literacy interventions aimed to improve health gains of higher education students—a systematic review
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Jorge Rosário, Beatriz Raposo, Eunice Santos, Sónia Dias, and Ana Rita Pedro
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Health literacy ,Heath literacy interventions ,Health gains ,Higher education students ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Health literacy (HL) among higher education students is low, making them vulnerable about their health. To reverse this trend, higher education institutions promote HL interventions with various topics and methods. A comprehensive understanding of HL interventions is essential to determine whether these interventions meet the health information needs to improve health outcomes (health gains). The aim of this review was to identify and synthesise evidence on the efficacy of HL interventions implemented in academic settings to improve health outcomes. Methods A systematic review was performed followed the PRISMA guidelines, protocol was registered in PROSPERO (CRD42022369869). A search strategy was performed in the EBSCO Host Web platform, the time limit placed was: 01/01/2017 to 30/09/2022. Eligible studies were those published in peer-reviewed journals and involved higher education students over the age of 18 as the subject of the intervention. Eligible interventions included any interventions evaluated in a study with comparison group that included a pre-post measure of health outcomes, were conducted in an academic setting. To methodology quality of included studies, it was used the Joanna Briggs Institute critical appraisal tool. To synthesise results narrative and thematic synthesis was conducted. Results A total of 9 articles were included in this review, identified health literacy interventions with an impact on health outcomes. The total studies involved 2902 higher education students. All 9 studies were randomised controlled trials. The synthesised evidence supports the efficacy of interventions that contributed to positive changes in mental health, attitudes, norms, and self-efficacy of condom use, emotional, social, and psychological well being, subjective sleep quality, sleep latency, and habitual sleep efficiency, physical activity, and self-reported servings fried foods. HL interventions were educational or motivational and related to health promotion, disease prevention or healthcare. Conclusions HL interventions in higher education students can significantly improve health outcomes protecting them from the negative effects of threats for their health. The interventions designed with different strategies are more effective. HL interventions are associated with health benefits on health promotion, disease prevention and healthcare. For the attendance of higher education to be a successful experience, continuity of HL interventions developed in academic settings is necessary.
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- 2024
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163. The Effect of UV-Vis Radiation on DNA Systems Containing the Photosensitizers Methylene Blue and Acridine Orange
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Thais P. Pivetta, Paulo A. Ribeiro, and Maria Raposo
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DNA intercalators ,methylene blue ,acridine orange ,irradiation ,UV-vis spectroscopy ,Biology (General) ,QH301-705.5 - Abstract
As a vital biomolecule, DNA is known as a target of antineoplastic drugs for cancer therapy. These drugs can show different modes of interaction with DNA, with intercalation and groove binding being the most common types. The intercalation of anticancer drugs with DNA can lead to the disruption of its normal function, influencing cell proliferation. Methylene blue (MB) and acridine orange (AO) are examples of DNA-intercalating agents that have been studied for their application against some types of cancer, mainly for photodynamic therapy. In this work, the impact of light irradiation on these compounds in the absence and presence of DNA was analyzed by means of UV-vis spectroscopy. Bathochromic and hypochromic shifts were observed in the absorbance spectra, revealing the intercalation of the dyes with the DNA base pairs. Dyes with and without DNA present different profiles of photodegradation, whereby the dyes alone were more susceptible to degradation. This can be justified by the intercalation of the dyes on the DNA base pairs allowing the DNA molecule to partially hinder the molecules’ exposition and, therefore, reducing their degradation.
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- 2024
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164. Positive and negative aspects of bacteriophages and their immense role in the food chain
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Soniya Ashok Ranveer, Vaishali Dasriya, Md Faruque Ahmad, Harmeet Singh Dhillon, Mrinal Samtiya, Eman Shama, Taruna Anand, Tejpal Dhewa, Vishu Chaudhary, Priya Chaudhary, Pradip Behare, Chand Ram, Dharun Vijay Puniya, Gulab D. Khedkar, António Raposo, Heesup Han, and Anil Kumar Puniya
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Nutrition. Foods and food supply ,TX341-641 ,Food processing and manufacture ,TP368-456 - Abstract
Abstract Bacteriophages infect and replicate inside a bacterial host as well as serve as natural bio-control agents. Phages were once viewed as nuisances that caused fermentation failures with cheese-making and other industrial processes, which lead to economic losses, but phages are now increasingly being observed as being promising antimicrobials that can fight against spoilage and pathogenic bacteria. Pathogen-free meals that fulfil industry requirements without synthetic additives are always in demand in the food sector. This study introduces the readers to the history, sources, and biology of bacteriophages, which include their host ranges, absorption mechanisms, lytic profiles, lysogenic profiles, and the influence of external factors on the growth of phages. Phages and their derivatives have emerged as antimicrobial agents, biodetectors, and biofilm controllers, which have been comprehensively discussed in addition to their potential applications in the food and gastrointestinal tract, and they are a feasible and safe option for preventing, treating, and/or eradicating contaminants in various foods and food processing environments. Furthermore, phages and phage-derived lytic proteins can be considered potential antimicrobials in the traditional farm-to-fork context, which include phage-based mixtures and commercially available phage products. This paper concludes with some potential safety concerns that need to be addressed to enable bacteriophage use efficiently.
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- 2024
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165. Endoscopic Management of Dysfunctioning Gastric Band after Sleeve Gastrectomy with the Luso-Cor® Esophageal Stent
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Filipe de Sousa Damião, Patrícia Santos, João Lopes, João Raposo, Carlos Noronha Ferreira, and Rui Marinho
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banded sleeve gastrectomy ,gastric band migration ,bariatric surgery endoscopy ,gastric outlet obstruction ,endoscopic stenting ,sleeve gástrico com anel de silastic ,migração de banda gástrica ,endoscopia na cirurgia bariátrica ,obstrução do esvaziamento gástrico ,próteses endoscópicas ,Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Sleeve gastrectomy (SG) can be aided by the addition of a calibration silicone ring, banded SG (BSG). It provides better weight loss than non-banded SG but with higher rate of adverse events. The aim of this case report is to further contribute to the knowledge of how to endoscopically manage these patients by placing a new esophageal stent (Luso-Cor®). A 58-year-old female with grade III obesity (weight 110 kg, BMI: 45.2 kg/m2) underwent SG in 2013. Due to the limited weight loss, a surgical calibration silicon ring was placed in 2017. In the following months, she developed recurrent and abundant postprandial regurgitation, achieving a minimum weight of 66 kg (BMI: 27.1 kg/m2). Gastroesophageal transit showed a stricture at the junction of the gastric corpus and antrum, causing gastric outlet obstruction. Endoscopy identified a regular luminal stenosis with normal mucosa, which allowed easy passage of the endoscope with slight pressure. Two sessions of endoscopic dilatation were performed, first with an 18-mm through-the-scope balloon and later with a 30-mm pneumatic balloon without symptomatic relief. A two-step endoscopic therapeutic approach was proposed to first promote intragastric ring erosion by placing a new partially covered metallic stent, Luso-Cor® esophageal stent 30/20/30 × 240 mm, and subsequently retrieve the stent, followed by cutting and retrieval of the ring. The proximal flare with a 30 mm diameter was placed in the distal esophagus and the distal edge in the prepyloric antrum. However, 2 weeks later, she complained of vomiting and abdominal fullness. Complete migration of the proximal flare of the stent into the remnant gastric fundus was seen on the contrast study. Endoscopy was performed, and the stent was easily removed. A blue calibration ring, partially eroded into the gastric lumen, was observed at the site of gastric tube stenosis. After stent removal, the patient was asymptomatic, and so conservative follow-up was decided. A follow-up endoscopy, performed 5 months later, showed complete reepithelization of the eroded ring. The patient remains asymptomatic after 3 years of follow-up and has regained weight up to 76 kg (BMI: 31.2 kg/m2). The efficacy of endoscopy on the management of ring-related adverse events has been previously reported. Small-case series describe the use of multiple pneumatic dilations or the deployment of plastic or covered metallic stents to cause erosion of the overlying mucosa, followed by cutting and retrieval of the ring. In conclusion, we believe that the mural pressure exerted by the Luso-Cor® esophageal stent, in the limited period it remained in situ, was sufficient to relieve the luminal pressure of the silicon ring, realigning the ring with the remnant gastric tube. This rare clinical entity highlights the potential role of specific metallic stents in the management of these patients.
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- 2024
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166. Speech Outcomes After Palatal Lengthening Via Double Opposing Buccinator Myomucosal Flaps
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Monte, Thais Miguel, Raposo-Amaral, Cesar A., Sabbag, Anelise, Gil, André, Menezes, Priscila T., and Raposo-Amaral, Cassio E.
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- 2024
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167. Teens' Behavior Patterns on the Web: Surfing or Wrecking?
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Raposo-Rivas, Manuela, Martínez-Figueira, María-Esther, Sarmiento Campos, José Antonio, and Parrilla Latas, Angeles
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Adolescents' relationship with technology is controversial both because of the possibilities it offers and because of the risks it entails, even being perceived by them as a real need. In order to improve the knowledge about it, a non-experimental research of transversal style has been carried out using a methodology based on data mining. 1,048 students of Secondary Education participated and answered a questionnaire about their use of the Internet and social networks. Six factors were identified, which could be recognized as patterns of behavior in the network. They are grouped around: (1) the communicative and informative dimension of the resources; (2) the one related to the security in the network; (3) the risk and vulnerability; (4) the specialized information both general and specific, (5) the transfer and acquisition of goods; and (6) the leisure and parental surveillance. The main findings show that their habits are mostly oriented towards the transfer and transaction along with the maintenance of security, avoiding situations that could involve risk and vulnerability in navigation. The identification of these subgroups is timely to develop training and digital literacy actions.
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- 2021
168. A systematic approach on some relevant theorems that follows from Kolmogorov's axioms
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Raposo, Diego J.
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Mathematics - General Mathematics ,60-01, 60A05 - Abstract
A selection of the relevant theorems of Probability Theory that comes directly from Kolmogorov's axioms, Set Theory basic results, definitions and rules of inference are listed and proven in a systematic approach, aiming the student who seeks a self-contained account on the matter before moving to more advanced material.
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- 2022
169. What does it take to solve the 3D Ising model? Minimal necessary conditions for a valid solution
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Viswanathan, G. M., Portillo, M. A. G., Raposo, E. P., and da Luz, M. G. E.
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Condensed Matter - Statistical Mechanics - Abstract
Exact solution of the Ising model on the simple cubic lattice is one of the long-standing open problems in rigorous statistical mechanics. Indeed, it is generally believed that settling it would constitute a methodological breakthrough, fomenting great prospects for further application, similarly to what happened when Lars Onsager solved the two dimensional model eighty years ago. Hence, there have been many attempts to find analytic expressions for the exact partition function $Z$, but all such attempts have failed due to unavoidable conceptual or mathematical obstructions. Given the importance of this simple yet paradigmatic model, here we set out clear-cut criteria for any claimed exact expression for $Z$ to be minimally plausible. Specifically, we present six necessary -- but not sufficient -- conditions that $Z$ must satisfy. These criteria will allow very quick plausibility checks of future claims. As illustrative examples, we discuss previous mistaken ``solutions,'' unveiling their shortcomings., Comment: 8 pages, minor corrections
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- 2022
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170. Ultra-Reliable Low-Latency Millimeter-Wave Communications with Sliding Window Network Coding
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Dias, Eurico, Raposo, Duarte, Esfahanizadeh, Homa, Cohen, Alejandro, Ferreira, Tânia, Luís, Miguel, Sargento, Susana, and Médard, Muriel
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Computer Science - Information Theory ,Computer Science - Networking and Internet Architecture - Abstract
Ultra-reliability and low-latency are pivotal requirements of the new 6th generation of communication systems (xURLLC). Over the past years, to increase throughput, adaptive active antennas were introduced in advanced wireless communications, specifically in the domain of millimeter-wave (mmWave). Consequently, new lower-layer techniques were proposed to cope with practical challenges of high dimensional and electronically-steerable beams. The transition from omni-directional to highly directional antennas presents a new type of wireless systems that deliver high bandwidth, but that are susceptible to high losses and high latency variation. Classical approaches cannot close the rising gap between high throughput and low delay in those advanced systems. In this work, we incorporate effective sliding window network coding solutions in mmWave communications. While legacy systems such as rateless codes improve delay, cross-layer results show that they do not provide low latency communications (LLC - below 10 ms), due to the lossy behaviour of mmWave channel and the lower-layers' retransmission mechanisms. On the other hand, fixed sliding window random linear network coding (RLNC) is able to achieve LLC, and even better, adaptive sliding window RLNC obtains ultra-reliable LLC (Ultra-Reliable and Low-Latency Communications (URLLC) - LLC with maximum delay below 10 ms with more than 99% success rate).
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- 2022
171. Physico-chemical changes in developed probiotic chicken meat spread fermented with Lactobacillus acidophilus and malted millet flour
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Namrata Agrawal, Pradeep Kumar Singh, Gauri Jairath, Md Faruque Ahmad, António Raposo, Anjum Khanam, Sehad N. Alarifi, Heesup Han, and Neha Thakur
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Lactobacillus acidophilus ,Physico-chemical properties ,Probiotic meat spread ,Sorghum millet ,Food processing and manufacture ,TP368-456 - Abstract
This study was envisaged to develop a probiotic chicken meat spread fermented with Lactobacillus acidophilus (Lactic acid bacteria-LAB) and malted sorghum flour as a substrate and evaluation of its quality. Chicken meat spread was prepared by incorporating malted sorghum flour at 0, 2, 4 and 6 % (w/w) levels as a substrate in the product's formulation, along with Lactobacillus acidophilus at a concentration of 1 million cfu/g of the product. The product prepared with different formulations i.e. C (meat spread only), C1 (meat spread with 0 % malted sorghum flour + LAB), T1 (meat spread with 2 % malted sorghum flour + LAB), T2 (meat spread with 4 % malted sorghum flour + LAB) and T3 (meat spread with 6 % malted sorghum flour + LAB) were assessed for fresh product study and the storage stability at refrigeration temperature for 16 days when the physico-chemical parameters were analyzed. The fresh product study revealed significantly (p ≤ 0.05) higher moisture content in the T3 group. However, lower protein, ether extract, and ash content in T2 and T3 samples compared with the control, whereas a higher emulsion stability and cooking yield in the T2 group were observed when compared with the control. Free fatty acid, thiobarbituric acid, and titratable acidity values significantly (p ≤ 0.05) increased for the fermented samples in comparison to the control, and the same trend continued during the entire storage period. This study showcases the potential of using malted sorghum flour and Lactobacillus acidophilus to enhance the functional properties of chicken meat spreads, making them more nutritious and appealing to health-conscious consumers. Future research should focus on optimizing ingredient proportions and exploring alternative substrates to further improve these functional meat products.
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- 2024
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172. Global DNA methylation is not elevated in blood samples from Machado-Joseph disease mutation carriers
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Luís Teves, Ana Rosa Vieira Melo, Ana F. Ferreira, Mafalda Raposo, Carolina Lemos, Conceição Bettencourt, and Manuela Lima
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Machado-Joseph disease ,SCA3 ,polyq disorders ,DNA methylation ,epigenetic modifiers ,Genetics ,QH426-470 - Abstract
Machado-Joseph disease (MJD) is an autosomal dominant spinocerebellar ataxia (SCA) caused by a polyglutamine expansion in the ataxin-3 protein, which initiates a cascade of pathogenic events, including transcriptional dysregulation. Genotype-phenotype correlations in MJD are incomplete, suggesting an influence of additional factors, such as epigenetic modifications, underlying the MJD pathogenesis. DNA methylation is known to impact the pathophysiology of neurodegenerative disorders through gene expression regulation and increased methylation has been reported for other SCAs. In this work we aimed to analyse global methylation in MJD carriers. Global 5-mC levels were quantified in blood samples of 33 MJD mutation carriers (patients and preclinical subjects) and 33 healthy controls, matched by age, sex, and smoking status. For a subset of 16 MJD subjects, a pilot follow-up analysis with two time points was also conducted. No differences were found in median global 5-mC levels between MJD mutation carriers and controls and no correlations between methylation levels and clinical or genetic variables were detected. Also, no alterations in global 5-mC levels were observed over time. Our findings do not support an increase in global blood methylation levels associated with MJD.
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- 2024
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173. Obtaining glycerol alkyl ethers via Williamson synthesis in heterogeneous media using amberlyst-A26TM −OH form and KOH/Al2O3 as basic solid reagents
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Priscila Faustino dos Santos, Fernanda Priscila Nascimento Rodrigues da Silva, Sara Raposo Benfica da Silva, and Vera Lúcia Patrocinio Pereira
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Glycerol ,Williamson ether synthesis ,heterogeneous medium ,AmberlystTM A26 −OH form ,KOH/Al2O3 ,Science ,Chemistry ,QD1-999 - Abstract
Two innovative and efficient routes were developed to produce glycerol-alkyl ethers employing Williamson reaction conditions in a heterogeneous medium. Thus, the ion exchange resin Amberlyst A26TM −OH form and KOH supported on alumina (KOH/Al2O3) were used as basic solid reagents for alkoxide ion formation. First, glycerol-1,3-iodohydrin and glycerol-1,3-bromohydrin were converted into 1,3-methyl- and 1,3-ethyl glycerol ethers (98–100%) when reacted with MeOH and EtOH, both as solvent and reagent. A second route employed glycerol as an alkoxide ion source and different organic halides such as electrophiles (ethyl iodide, ethyl bromide, allyl bromide, and benzyl bromide) in the presence of Amberlyst A26TM −OH form or KOH/Al2O3. When Amberlyst A26TM −OH resin was used glycerol was converted (100%) to glycerol-1-monoether (73%), -1,3-diether (21%), and -triether (6%) by treating with ethyl bromide or ethyl iodide at 60°C in 1,4-dioxane for 24 h. The use of more reactive halides produced a complex mixture of products. Additionally, the use of ethyl bromide in the presence of KOH/Al2O3, under reflux in 1,4-dioxane for 24 h, led to the consumption of 90% of glycerol with the formation of glycerol-1-ethyl ether (98%) and glycerol-1,3-ethyl ether (2%). The ion exchange resin Amberlyst A26TM −OH could be regenerated and reused in the process.
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- 2024
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174. An integrated assessment of niche partitioning reveals mechanisms of coexistence between mesocarnivores
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Ana Luisa Barros, Diogo Raposo, João David Almeida, Hugo Jesus, Maria Alexandra Oliveira, Carlos Rodríguez Fernandes, Darryl I. MacKenzie, and Margarida Santos-Reis
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Camera-trap ,Mediterranean ,Predators ,Spatiotemporal co-occurrence ,Trophic niche ,Ecology ,QH540-549.5 - Abstract
Species diversity depends on the capacity of species to coexist, and when these share similar ecological requirements some degree of partitioning of the ecological niche is expected. Within the order Carnivora, direct and indirect interspecific interactions shape community structure and composition. Although strong negative interactions (e.g., interspecific killing) are expected between large carnivores and subordinate species, mesocarnivores that dominate most human disturbed landscapes can still strongly compete for resources given their similar body size and energy requirements. To identify the mechanisms of coexistence between mesocarnivore species in a Mediterranean landscape we assessed the ecological niche overlap between five species (Vulpes vulpes, Meles meles, Martes foina, Herpestes ichneumon, Genetta genetta), by simultaneously measuring the space, time, and trophic resource use. The multi-species occupancy model fit to camera-trapping data revealed spatial co-occurrence between most species’ pairs and an avoidance pattern between only stone marten and Eurasian badger (78 % probability of a negative effect). Using genetically identified scats, we assessed trophic niche breadth and overlap. Niche breadth was narrow for red fox, Eurasian badger, and stone marten, given these species consumed almost exclusively fruits and arthropods, and so trophic niche overlap was high. For the genet and the mongoose, the consumption of different food resources (e.g., mammals, birds, and reptiles) increased niche breadth and decreased the niche overlap with the other sympatric species. Finally, niche segregation was more significant along the temporal axis, since the mongoose has a diurnal activity pattern and the remaining carnivore species, although mostly nocturnal, had small asynchronies in the activity peaks which could decrease the chance of direct encounters. Therefore, our results suggest that similar habitat preferences and ecological requirements rather than interspecific competition shape the mesocarnivores’ resource use in this landscape. Nonetheless, fine-scale temporal segregation seems the main mechanism to facilitate coexistence, together with small differences in trophic resource use, especially for species with high spatial and temporal overlap.
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- 2024
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175. Assessing the perceptual equivalence of a firefighting training exercise across virtual and real environments
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Narciso, David, Melo, Miguel, Rodrigues, Susana, Dias, Duarte, Cunha, João, Vasconcelos-Raposo, José, and Bessa, Maximino
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- 2024
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176. Impact of the COVID-19 pandemic on the self-care and health condition of the older adults. CUIDAMOS+75. A mixed methods study protocol
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Milagros Rico-Blazquez, Silvia Esteban-Sepúlveda, Raquel Sánchez-Ruano, Ana María Aritztegui-Echenique, Eva María Artigues-Barbera, Pedro Ruymán Brito-Brito, Elvira Casado-Ramirez, María Ángeles Cidoncha-Moreno, María Inmaculada Fabregat-Julve, Isabel Feria-Raposo, Montserrat Hernandez-Pascual, Cristina Lozano-Hernández, María Teresa Moreno-Casbas, Pedro Otones-Reyes, Ana María Palmar-Santos, Azucena Pedraz-Marcos, Esperanza María Romero-Rodriguez, María Cristina Solé-Agustí, Joana María Taltavull-Aparicio, María Clara Vidal-Thomas, Víctor Manuel Gonzalez-Chorda, Cuidamos+75 Group, Rico Milagros, Esteban Silvia, Moreno Teresa, Abad Eva, Ariztegui Ana, Artigues Eva, Avendaño Almudena, Bernabeu Clara, Blanco Joan, Boixadera Mireia, Cabeza Antonio, Cameselle Candela, Casado Elvira, Cidoncha M Ángeles, Company Consuelo, Cortes Elisa Belén, Etxebarria Aitziber, Fabregat Inmaculada, Feria Isabel, Fernández Roser, Galán M José, García Marta, Gimeno Iraida, González Víctor M, Hernandez Montserrat, Izaguirre Eva, López Yolanda, Losada Antonio, Lozano Cristina, Martín Ángel, Martín Susana, Más Marta, Mateo Ana, Miralles Jerónima, Moreno Maribel Noel Rosa, Oter Cristina, Otones Pedro, Padilla Jorge Rafael, Palmar Ana M, Pastor Monica, Pedraz Azucena, Pisà Marta, Reina Gloria, Rich Manuel, Sánchez Raquel, Romero Esperanza M, Ruymán Pedro, Sarabia Carmen M, Solé María, Taltavull Joana Maria, Vicente Sergio, and Vidal Clara
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aged ,big data ,caregivers ,COVID-19 ,nursing ,nursing diagnosis ,Public aspects of medicine ,RA1-1270 - Abstract
AimsTo assess the impact of the COVID-19 pandemic on the health condition of people ≥75 years of age and on their family caregivers in Spain.DesignMulticentric, mixed method concurrent study.MethodsThis work, which will be conducted within the primary care setting in 11 administrative regions of Spain, will include three coordinated studies with different methodologies. The first is a population-based cohort study that will use real-life data to analyze the rates and evolution of health needs, care provision, and services utilization before, during, and after the pandemic. The second is a prospective cohort study with 18 months of follow-up that will evaluate the impact of COVID-19 disease on mortality, frailty, functional and cognitive capacity, and quality of life of the participants. Finally, the third will be a qualitative study with a critical social approach to understand and interpret the social, political, and economic dimensions associated with the use of health services during the pandemic. We have followed the SPIRIT Checklist to address trial protocol and related documents. This research is being funded by the Instituto de Salud Carlos III since 2021 and was approved by its ethics committee (June 2022).DiscussionThe study findings will reveal the long-term impact of the COVID-19 pandemic on the older adults and their caregivers. This information will serve policymakers to adapt health policies to the needs of this population in situations of maximum stress, such as that produced by the COVID-19 pandemic.Trial RegistrationIdentifier: NCT05249868 [ClinicalTrials.gov].
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- 2024
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177. (In) visibilidades do desmatamento na Amazônia: um exercício de apreensão dos fatos e dos atos em contextos de ensino
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Ivone dos Santos Siqueira, Elinete Oliveira Raposo, and Nadia Magalhães da Silva Freitas
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Desmatamento ,Amazônia ,Questões socioambientais ,Pesquisa-formação. ,Education (General) ,L7-991 ,Special aspects of education ,LC8-6691 - Abstract
Os impactos ambientais causados pelas atividades econômicas têm o desmatamento como uma das principais causas da devastação da Amazônia. Neste artigo tratamos do desenvolvimento da estratégia didática Iceberg para a discussão do desmatamento na/da Amazônia. A pesquisa-formação, de natureza qualitativa foi realizada com estudantes de licenciatura. Os esquemas do Iceberg relativos ao desmatamento e as manifestações dos estudantes referentes a estes esquemas, foram analisados pelo método da análise de conteúdo, mais precisamente a técnica da análise de enunciação. Os resultados evidenciam (in)visibilidades sobre o desmatamento que a feitura do Iceberg lançou luz. Os estudantes ao exporem suas produções coletivas indicam que apreenderam as múltiplas causas e consequências relativas ao desmatamento. A prática educativa em questão, baseada na comunicação e no diálogo, mostrou-se importante na formação de professores de ciências, por promover uma visão integrada do cenário amazônico, especificamente o desmatamento na/da Amazônia.
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- 2024
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178. Competencia digital de las personas orientadoras en los centros integrados de formación profesional de España
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Esperanza Requejo Fernández, Manuela Raposo-Rivas, and José Antonio Sarmiento Campos
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orientación ,formación profesional ,capacidad técnica ,nuevas tecnologías ,competencia digital ,Education (General) ,L7-991 - Abstract
La orientación profesional es clave para garantizar una educación de calidad e inclusiva y las tecnologías constituyen uno de los medios que pueden facilitar el alcance de ese desafío, por lo que son precisas ciertas habilidades en su manejo. Esta investigación tiene como objetivo conocer la competencia digital de las personas profesionales de la orientación en los centros de formación profesional de España. Se describen, se comparan y se analizan las respuestas emitidas por el 47,11% de la población a un cuestionario validado creado ad hoc que presenta una fiabilidad α = 0,81. Se desarrolla un estudio de datos descriptivo, correlacional y de redes bayesianas mediante los programas SPSS Statistics 22 y OpenMarkov. Los resultados afirman que la muestra posee una competencia digital a nivel usuario adquirida en su mayoría por autoformación y asistencia a conferencias. Además, los recursos y las herramientas más innovadoras están poco integrados en la orientación profesional, siendo las plataformas y los programas específicos de la orientación los más desconocidos. Como conclusión, las administraciones deben afrontar este desafío ofreciendo programas de formación permanente para mejorar las competencias digitales y, por ende, la integración de recursos tecnológicos como aliados para una educación más accesible e inclusiva.
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- 2024
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179. Análisis de vídeo-anotaciones sobre el uso de recursos tecnológicos durante el Prácticum (Analysis of video-annotations on the use of technological resources during the Practicum)
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Olalla García Fuentes, Manuela Raposo Rivas, María-Esther Martínez-Figueira, and José Antonio Sarmiento Campos
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formador de docentes ,práctica pedagógica ,tecnología avanzada ,grabación en vídeo ,formación preparatoria de profesores ,Theory and practice of education ,LB5-3640 ,Technology ,Social Sciences - Abstract
Las vídeo-anotaciones posibilitan nuevas interacciones asíncronas entre autor y lector, documentan las evidencias multimedia y promueven la reflexión. Con este marco de referencia, se plantea un estudio para conocer las buenas prácticas, así como los impactos, dificultades y requisitos necesarios para implementar los recursos tecnológicos en las prácticas externas de los títulos de Educación. Participan 26 personas que poseen roles diferentes. Se han realizado entrevistas grabadas que se examinan mediante vídeo-anotaciones y cuyos datos se tratan con un análisis textual y factorial, junto con una técnica de clasificación jerárquica. Los resultados muestran 90 segmentos de texto constituidos por 2.657 palabras y 751 formas activas suplementarias, que se agrupan en seis factores. Los resultados muestran una distribución desigual de las variables establecidas entre los grupos y una relación estadísticamente significativa. Se concluye que existe confluencia entre los grupos empleo, comunicación y seguimiento, por un lado; por otro, los grupos aprendizaje, tipología e implicaciones. Existe también una mayor frecuencia en las categorías ‘requerimientos’ e ‘impacto’, lo que pone de manifiesto un discurso de los entrevistados centrado en aquellas cuestiones relacionadas con las exigencias necesarias para implementar las tecnologías en el Prácticum y las mejoras que aportan en este momento formativo.
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- 2024
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180. Blood and cerebellar abundance of ATXN3 splice variants in spinocerebellar ataxia type 3/Machado-Joseph disease
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Mafalda Raposo, Jeannette Hübener-Schmid, Rebecca Tagett, Ana F. Ferreira, Ana Rosa Vieira Melo, João Vasconcelos, Paula Pires, Teresa Kay, Hector Garcia-Moreno, Paola Giunti, Magda M. Santana, Luis Pereira de Almeida, Jon Infante, Bart P. van de Warrenburg, Jeroen J. de Vries, Jennifer Faber, Thomas Klockgether, Nicolas Casadei, Jakob Admard, Ludger Schöls, Olaf Riess, Maria do Carmo Costa, and Manuela Lima
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Ataxin-3 ,polyQ diseases ,Neurodegenerative disease ,RNA-seq ,mRNA ,Alternative splicing ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Spinocerebellar ataxia type 3 (SCA3)/Machado-Joseph disease (MJD) is a heritable proteinopathy disorder, whose causative gene, ATXN3, undergoes alternative splicing. Ataxin-3 protein isoforms differ in their toxicity, suggesting that certain ATXN3 splice variants may be crucial in driving the selective toxicity in SCA3. Using RNA-seq datasets we identified and determined the abundance of annotated ATXN3 transcripts in blood (n = 60) and cerebellum (n = 12) of SCA3 subjects and controls. The reference transcript (ATXN3–251), translating into an ataxin-3 isoform harbouring three ubiquitin-interacting motifs (UIMs), showed the highest abundance in blood, while the most abundant transcript in the cerebellum (ATXN3–208) was of unclear function. Noteworthy, two of the four transcripts that encode full-length ataxin-3 isoforms but differ in the C-terminus were strongly related with tissue expression specificity: ATXN3–251 (3UIM) was expressed in blood 50-fold more than in the cerebellum, whereas ATXN3–214 (2UIM) was expressed in the cerebellum 20-fold more than in the blood. These findings shed light on ATXN3 alternative splicing, aiding in the comprehension of SCA3 pathogenesis and providing guidance in the design of future ATXN3 mRNA-lowering therapies.
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- 2024
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181. Response time of soil moisture to rain in a vineyard with permanent cover
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Rosane da Silva-Dias, Xiana Raposo-Díaz, Aitor García-Tomillo, and Manuel López-Vicente
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Soil water content ,Soil depth ,Temporal variation ,Response time ,Vine variety ,Permanent cover ,Science - Abstract
The time elapsed between the moments of maximum rainfall intensity and maximum soil moisture, known as peak to peak (P2P), is part of the hydrological response of the soil, but literature has missed this metric in any woody crop. In a vineyard with permanent vegetation cover (humid climatic conditions), the influence of two cultivars (Agudelo and Blanco Legítimo) and two zones (rows and inter-row areas) on the values of soil moisture response time, absolute change in moisture (ΔS) and P2P was evaluated for 118 rainfall events in three soil layers. 12 capacitance probes and a weather station were used, and data measured every 15 min. A positive response (ΔS > 0) was observed in 79 %, 73 % and 67 % of all events at soil depth of 5, 15 and 25 cm, decreasing ΔS with increasing soil depth. Differences of ΔS were significant among layers, but not among cultivars and zones. The maximum ΔS occurred at 15 cm, while the minimum was observed at 25 cm. No response was evident when specific thresholds were not reached: rainfall depth (0.60 mm event−1), maximum intensity (1.20 mm h−1) or duration (30 min). Topsoil conditions –high rainfall interception by the dense cover and high soil organic matter content– influenced the results at 5 cm. Rain parameters correlated well with ΔS, but weak with the response time and P2P. P2P occurred earlier in the rows than between the rows, especially at 15 cm. Shorter P2P appeared in Agudelo, with significant differences in the rows at 5 cm. P2P differed significantly among layers, increasing P2P with soil depth. Similar ΔS values appeared in Spring and Autumn, and were significantly different than those in Summer, but P2P did not differ significantly among seasons. Therefore, the magnitude and timing of the soil hydrological response were independent processes.
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- 2024
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182. A Herdade do Freixo do Meio e a emergência de um turismo científico de natureza (um salto ao passado; um mergulho no futuro)
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Albino Lopes, Fernando Romana, Luis Barrosa, Ruben Raposo, and Alfredo Sendim
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Neolítico ,Desflorestação ,Cereais ,Desertificação ,Espaço agroflorestal ,Sustentabilidade ,Medicine (General) ,R5-920 ,Social sciences (General) ,H1-99 - Abstract
Identificam-se, no texto, o que designamos de etapas (ao jeito de breves narrativas) um projeto que se pretende “inovador” de “turismo científico” organizado em passos de uma experiênciação única. As condições do caso de estudo são de ordem quase-laboratoriais. O contexto apresenta-se como o de uma “eco-árqueo-história agro-florestal” do padrão de povoamento mediterrânico-peninsular. Em lugar de se escolher uma abordagem racionalista para refletir sobre os factos em discussão, segue-se uma abordagem à Gabriel Garcia Marques para se fazer experimentar às pessoas comuns o essencial do que está em causa. Só que em lugar de um romance opta-se, neste caso, pela escolha da força de um espaço a explorar, como só pode fazer-se no âmbito de uma digressão turística colocando-se o próprio espaço (a título de personagem) no centro da narrativa. O espaço da Herdade do Freixo do Meio (HFM) conta, efetivamente, uma história radicalmente diferente da narrativa dominante e que faz depender a era da sedentarização como um resultado da designada “revolução (neolítica) dos cereais”. Efetivamente, procura dar-se conta, neste texto, de um “percurso conceptual”, em 10 etapas, ou narrativas, deduzidas da nossa observação direta no terreno, complementada por diversas entrevistas com os atores mencionadas no texto, cobrindo cerca de 7.000 anos de povoamento, no espaço da Herdade do Freixo do Meio (HFM), em Foros de Vale Figueira – concelho de Montemor o Novo, uma propriedade que permite demonstrar a possibilidade de existir uma plena sustentabilidade, de todos os pontos de vista, ou seja, de valores assentes na justiça social, demográfica, económica e, naturalmente, ecológica. O projeto de guião (script) de um roteiro turístico, idealizado enquanto possível produto vendável, visa amplificar o trabalho, verdadeiramente invulgar pela ambição de romper com qualquer vínculo ao passado da exploração latifundiária, realizado na HFM, na fase difícil, do desenvolvimento do projeto, visto do lado do estímulo à procura. Este projeto propõe-se “ajudar” a divulgar a ação coletiva dos atores da experiência agroflorestal revolucionária da HFM e, dessa forma, encontrar o modelo da sua consolidação, por outro lado, o de um novo ciclo de estímulo à procura. Acresce que, nessa consolidação da procura pelo turismo científico, poderá conceber-se um interesse particular a partir do estudo ora proposto, segundo pensamos, analisando-o sob um terceiro ângulo, o da sua efetivamente “fácil” repetibilidade, através dos territórios do interior do nosso país, e não só.
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- 2024
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183. Assessment of knowledge, attitude, and practices regarding the relationship of obesity with diabetes among the general community of Pakistan
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Arooj Kiran, Naseer Ali Shah, Shujaul Mulk Khan, Haroon Ahmed, Muhammad Kamran, Beenish Khan Yousafzai, Zeeshan Ahmad, Sunghoon Yoo, Heesup Han, Ibrahim Alasqah, and António Raposo
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Attitude ,Knowledge ,Obesity ,Pakistan ,Practices ,Diabetes Mellitus ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
This study sought to evaluate the influence of knowledge, attitude, and practices assessment on diabetes related to obesity in Pakistani society. Data was collected both through door to door and online survey approaches from 518 participants by using a pre-validated questionnaire. A total of 15.6% were underweight, 61.2% were normal weight, 17.2% were overweight and 5.8% were in obesity class I and 2.9% were classified as obesity class II. The co-occurrence of obesity and diabetes was 29% (n = 22) among diabetic individuals (n = 84). A majority of the residents (59.1%) were from cities. While 94% of the participants responded to what obesity was, 83.8% knew what diabetes was. Fast food, soft drinks, and mayonnaise were deemed to be healthy by 75.1% of the respondents. Obesity was viewed as a disease by 94.8%, a major health issue by 78.2%, and a weight-loss necessity by 44.6% of participants. Only 24.9% exercised every day, and 23.9% engaged in any physical activity daily. The majority of respondents (50.6%) never tried to lose weight and 23.2% ate junk food daily. The sociodemographic variables showed that the age ranges of 25–34 years (P
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- 2024
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184. Hipertensão Arterial Pulmonar com Características de Envolvimento Venoso: Um Trabalho Investigativo
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Daniel Inácio Cazeiro, Rui Plácido, Miguel Azeredo Raposo, Joana Brito, Alexandra Borba, Tatiana Guimarães, Eugénia Pinto, Pedro Freitas, and Fausto J. Pinto
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Hipertensão Arterial Pulmonar ,Doença Veno-Oclusiva Pulmonar ,Transplante de Pulmão ,Hemangioma Capilar/cirurgia ,Tomografia Computadorizada/diagnóstico por imagem ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Resumo A doença veno-oclusiva pulmonar (DVOP) e a hemangiomatose capilar pulmonar são tipos raros de substratos histopatológicos dentro do espectro da hipertensão arterial pulmonar (HAP) com prognóstico muito ruim. Caracterizam-se por um processo fibroproliferativo generalizado das veias e/ou capilares de pequeno calibre com preservação das veias maiores, resultando em um fenótipo de hipertensão pulmonar pré-capilar. A apresentação clínica é inespecífica e semelhante a outras etiologias de HAP. O diagnóstico definitivo é obtido por meio de análise histológica, embora a biópsia pulmonar não seja aconselhada devido ao maior risco de complicações. No entanto, alguns achados adicionais podem permitir um diagnóstico clínico presuntivo de DVOP, especialmente história de tabagismo, uso de drogas quimioterápicas, exposição a solventes orgânicos (particularmente tricloroetileno), baixa capacidade de difusão do monóxido de carbono (DLCO), dessaturação ao esforço e evidências de doença venosa sem doença cardíaca esquerda no exame de imagem, manifestada por uma tríade clássica de opacidades em vidro fosco, linhas septais, e linfadenopatias. O transplante pulmonar é o único tratamento eficaz e os pacientes devem ser encaminhados no momento do diagnóstico, devido à rápida progressão da doença e ao prognóstico ruim. Apresentamos o caso de um homem de 58 anos com HAP com características de envolvimento venoso/capilar em que a suspeita clínica, o pronto diagnóstico e o encaminhamento precoce para transplante pulmonar foram determinantes para um bom desfecho.
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- 2024
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185. Enhancing life with celiac disease: unveiling effective tools for assessing health-related quality of life
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Ana Luísa Falcomer, Bernardo Romão de Lima, Priscila Farage, Samantha Fabris, Ruth Ritter, António Raposo, Edite Teixeira-Lemos, Cláudia Chaves, and Renata Puppin Zandonadi
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Celiac disease ,gluten-free ,quality of life ,questionnaire ,systematic review ,Immunologic diseases. Allergy ,RC581-607 - Abstract
Celiac disease (CD) is an autoimmune chronic enteropathy provoked by gluten ingestion in genetically predisposed individuals. Considering it´s only safe treatment is a lifelong gluten-free diet, the burden of living with the disease becomes evident, as well as the need to assess CD health-related quality of life (HRQOL). This review aims to identify and analyze the instruments used to evaluate the HRQOL of adults with CD. This integrative review using a systematic approach was designed to achieve high scientific standards. Accordingly, the search strategy was developed and executed as recommended by the guideline of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Detailed individual searches were developed to Pubmed, Science Direct, Scopus, Web of Science, and Google Scholar. After careful analysis of the papers, 43 studies were included, in which seven instruments were identified: Celiac Disease Questionnaire (CDQ) (n=21), Celiac Disease Specific Quality of Life Instrument (CD-QOL) (n=17), Celiac Disease Assessment Questionnaire (CDAQ) (n=4), CeliacQ-7 (n=1), CeliacQ-27 (n=1), Black and Orfila´s self-developed instrument (n=1) and the Coeliac Disease Quality of Life Questionnaire (CDQL) (n=1). The CDQ and CD-QOL were the two most applied instruments. Since the first focuses on the physical and mental symptoms related to the disease and the second focuses on the emotional repercussions of adhering to the GFD treatment for life (dysphoria), the CDQ application is an interesting option for countries that struggle with public policies for CD patients and patients with active CD. The CD-QOL could be used for countries with strict regulations for CD and gluten-free products and populations in remission. When comparing results among different populations, it is preferable to utilize culturally validated instruments, which have been applied across multiple countries, providing greater comparability between study findings.
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- 2024
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186. Qualitative Analysis of Baltic Amber Resin by Gas Chromatography Coupled with Mass Spectrometry and the Therapeutic Potential of this Fossil Resin
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Manuela Soares Raposo, Fernanda Michel Tavares Canto, Raquel Vieira Santana da Silva, Débora de Almeida Azevedo, Ivete Pomarico Souza, and Matheus Melo Pithon
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Amber ,Chromatography ,Mass Spectrometry ,Dentistry ,RK1-715 - Abstract
Objective: To analyze the molecular composition of a sample of Baltic amber taken from an amber bracelet, verify the presence or absence of compounds beneficial to human health, and discuss the therapeutic potential of this fossil resin. Material and Methods: For this, a qualitative analysis was performed by gas chromatography coupled with mass spectrometry (GC-MS system), which can perform an automated separation into individual components of amber. Results: The samples comprised terpenes and terpenoids: monoterpenoids, sesquiterpenoids, diterpenoids, hydronaphthalene, succinic acid, and isopimaric acid. These have therapeutic potential for several diseases, inhibit several stages of the inflammatory process, and improve the symptoms caused by it. Conclusion: The amber of this sample tested is formed by terpenes and terpenoids, substances with anti-inflammatory and analgesic. However, an in-depth study is needed on the release and absorption of substances in human skin or their actual effectiveness.
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- 2024
187. Cross-cultural ethnobotany of the Baltis and Shinas in the Kharmang district, Trans-Himalaya India-Pakistan border
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Basharat Hussain, Zaheer Abbas, Jan Alam, Nidaa Harun, Shujaul Mulk Khan, Zeeshan Ahmad, Heesup Han, Sunghoon Yoo, and António Raposo
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Marginalized communities ,Ethnobotany ,Conservation ,Phytocultural diversity ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Human communities that inhabit the political borders live a transitional life, which is due to several socio-political and geo-climatic factors. The current cross-cultural ethnomedicinal study was conducted at the highly elevated Pakistan-India borders of the Western Himalayas in order to address the medicinal flora and folk knowledge of Balti and Shina communities. Ethnobotanical field surveys were conducted from May 2021 to September 2022. We used semi-structured interviews in order to collect the ethnomedicinal data. The collected data was analyzed using the relative frequency of the citations, use value, and Venn diagrams. A total of 140 interviews were conducted, which comprised of 90 (64.28%) Baltis and 50 (35.71%) Shinas. The interviews recorded 60 medicinal plant species that belong to 56 genera and 35 families. Asteraceae (5 spp.), Lamiaceae (5 spp.), and Apiaceae (4 spp.) were the families that were the most represented. These medicinally valued plants were being used for 55 health issues that are related to different body systems. Delphinium brunonianum, Thymus linearis, Hymenolaena candollei, Corydalis adiantifolia, and Seriphidium brevifolium were medicinal taxa with maximum RFCs and UV. The Baltis have comparatively more ethnomedicinal knowledge than the Shinas. The Baltis commonly used 22 (36.66%) species, which 34 (56.66%) were exclusive to the Baltis and 4 (6.66%) to the Shinas. Both ethnic groups collectively hold significant ethnobotanical knowledge that demands the preservation of risked folk knowledge, which is due to uncertain border situations, outmigration, and permeating allopathic drugs.
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- 2024
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188. When we think of urban afforestation in Brazil, what comes to mind is a mouth that has lost its teeth. e2321654
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Fabio Angeoletto, Enrique Richard, Jeater Santos, Neiva Guedes, Simoni Loverde Oliveira, Ricardo Massulo Albertín, Alesson Guirra, Eliana Raposo, Gedeone Ferreira Lima, and Normandes Matos da Silva
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biodiversity of tropical cities ,urban afforestation ,environmental justice ,global hotspots of biodiversity ,urban ecology ,Geography (General) ,G1-922 ,Urban groups. The city. Urban sociology ,HT101-395 - Abstract
The conservationist mentality of classifying pristine and degraded environments has given way to a more intelligent approach, that is, producing and applying knowledge to increase and support biodiversity in human habitats. Cities have a high potential for the conservation of biological diversity, but it is not fully feasible without considerable planning and management inputs. There are many ecosystem services provided by trees in urban ecological systems, whose positive impact on human well-being is consensual in the literature. Likewise, the capacity of urban flora, especially woody vegetation, to attract and support fauna has been proven in several studies. Tropical megadiverse countries whose cities are undergoing rapid urbanization such as Brazil face the double challenge of creating cities that can support biological diversity, with environmental justice. The most important tool for solving these demands is urban afforestation planning. However, the capacity of Brazilian cities to plan and execute tree-planting projects is low. In this essay, we discuss the main difficulties related to urban afforestation in Brazil and present some alternatives for increasing the number of trees and species and for the democratization of their benefits, especially in neighborhoods with low socioeconomic status
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- 2024
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189. Health Literacy and Diabetes: Challenges and Trends
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Nascimento do Ó, Dulce, primary, Goes, Ana Rita, additional, Raposo, João Filipe, additional, and Loureiro, Isabel, additional
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- 2023
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190. MÁ-ABSORÇÃO DE GLICOSE E GALACTOSE EM UNIDADE DE TERAPIA INTENSIVA EM UM HOSPITAL DE RECIFE: RELATO DE CASO
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CLARA LACERDA CERVANTES DE CARVALHO, ANA, primary, LIBERATO DE SOUZA, ANDERSON, additional, CAETANO CHAGAS, SHAIANE, additional, FERREIRA ARAÚJO DO NASCIMENTO, GABRIELA, additional, LÚCIA DE SOUZA SANTOS, JAYNE, additional, NORBERTA MARQUES DE SANTANA, AMANDA, additional, and RAPOSO MIRANDA, SIMONE, additional
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- 2023
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191. Realistic micromagnetic description of all-optical ultrafast switching processes in ferrimagnetic alloys
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Raposo, V., García-Sánchez, F., Atxitia, U., and Martínez, E.
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Condensed Matter - Mesoscale and Nanoscale Physics - Abstract
Both helicity-independent and helicity-dependent all-optical switching processes driven by single ultrashort laser pulse have been experimentally demonstrated in ferrimagnetic alloys as GdFeCo. Although the switching has been previously reproduced by atomistic simulations, the lack of a robust micromagnetic framework for ferrimagnets limits the predictions to small nano-systems, whereas the experiments are usually performed with lasers and samples of tens of micrometers. Here we develop a micromagnetic model based on the extended Landau-Lifshitz-Bloch equation, which is firstly validated by directly reproducing atomistic results for small samples and uniform laser heating. After that, the model is used to study ultrafast single shot all-optical switching in ferrimagnetic alloys under realistic conditions. We find that the helicity-independent switching under a linearly polarized laser pulse is a pure thermal phenomenon, in which the size of inverted area directly correlates with the maximum electron temperature in the sample. On the other hand, the analysis of the helicity-dependent processes under circular polarized pulses in ferrimagnetic alloys with different composition indicates qualitative differences between the results predicted by the magnetic circular dichroism and the ones from inverse Faraday effect. Based on these predictions, we propose experiments that would allow to resolve the controversy over the physical phenomenon that underlies these helicity-dependent all optical processes., Comment: manuscript and supplementary material, 25+19 pages, 6+10 figures
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- 2022
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192. Intensity $g^{(2)}$-correlations in random fiber lasers: A random matrix theory approach
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Raposo, Ernesto P., Gonzáles, Iván R. R., Coronel, Edwin D., Macêdo, Antônio M. S., Menezes, Leonardo de S., Kashyap, Raman, Gomes, Anderson S. L., and Kaiser, Robin
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Physics - Optics ,Physics - Data Analysis, Statistics and Probability - Abstract
We propose a new approach based on random matrix theory to calculate the temporal second-order intensity correlation function $g^{(2)}(t)$ of the radiation emitted by random lasers and random fiber lasers. The multimode character of these systems, with a relevant degree of disorder in the active medium, and large number of random scattering centers substantially hinder the calculation of $g^{(2)}(t)$. Here we apply for the first time in a photonic system the universal statistical properties of Ginibre's non-Hermitian random matrix ensemble to obtain $g^{(2)}(t)$. Excellent agreement is found with time-resolved measurements for several excitation powers of an erbium-based random fiber laser. We also discuss the extension of the random matrix approach to address the statistical properties of general disordered photonic systems with various Hamiltonian symmetries., Comment: 5 pages, 4 figures
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- 2022
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193. Absence of Walker breakdown in the dynamics of chiral Neel domain walls driven by in-plane strain gradients
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Fattouhi, Mouad, Garcia-Sanchez, Felipe, Yanes, Rocio, Raposo, Victor, Martinez, Eduardo, and Lopez-Diaz, Luis
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Physics - Computational Physics ,Condensed Matter - Materials Science - Abstract
We investigate theoretically the motion of chiral N\'eel domain walls in perpendicularly magnetized systems driven by in-plane strain gradients. We show that such strain drives domain walls efficiently towards increasing tensile (compressive) strain for positive (negative) magnetostrictive materials. During their motion a local damping torque that opposes the precessional torque due to the strain gradient arises. This torque prevents the onset of turbulent dynamics, and steady domain wall motion with constant velocity is asymptotically reached for any arbitrary large strain gradient. Withal, velocities in the range of 500 m/s can be obtained using voltage-induced strain under realistic conditions.
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- 2022
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194. A data-driven approach for learning to control computers
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Humphreys, Peter C, Raposo, David, Pohlen, Toby, Thornton, Gregory, Chhaparia, Rachita, Muldal, Alistair, Abramson, Josh, Georgiev, Petko, Goldin, Alex, Santoro, Adam, and Lillicrap, Timothy
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Computer Science - Machine Learning - Abstract
It would be useful for machines to use computers as humans do so that they can aid us in everyday tasks. This is a setting in which there is also the potential to leverage large-scale expert demonstrations and human judgements of interactive behaviour, which are two ingredients that have driven much recent success in AI. Here we investigate the setting of computer control using keyboard and mouse, with goals specified via natural language. Instead of focusing on hand-designed curricula and specialized action spaces, we focus on developing a scalable method centered on reinforcement learning combined with behavioural priors informed by actual human-computer interactions. We achieve state-of-the-art and human-level mean performance across all tasks within the MiniWob++ benchmark, a challenging suite of computer control problems, and find strong evidence of cross-task transfer. These results demonstrate the usefulness of a unified human-agent interface when training machines to use computers. Altogether our results suggest a formula for achieving competency beyond MiniWob++ and towards controlling computers, in general, as a human would.
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- 2022
195. Compactness bounds in General Relativity
- Author
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Alho, Artur, Natário, José, Pani, Paolo, and Raposo, Guilherme
- Subjects
General Relativity and Quantum Cosmology ,Astrophysics - High Energy Astrophysical Phenomena ,High Energy Physics - Phenomenology - Abstract
A foundational theorem due to Buchdahl states that, within General Relativity (GR), the maximum compactness $\mathcal{C}\equiv GM/(Rc^2)$ of a static, spherically symmetric, perfect fluid object of mass $M$ and radius $R$ is $\mathcal{C}=4/9$. As a corollary, there exists a compactness gap between perfect fluid stars and black holes (where $\mathcal{C}=1/2$). Here we generalize Buchdahl's result by introducing the most general equation of state for elastic matter with constant longitudinal wave speeds and apply it to compute the maximum compactness of regular, self-gravitating objects in GR. We show that: (i) the maximum compactness grows monotonically with the longitudinal wave speed; (ii) elastic matter can exceed Buchdahl's bound and reach the black hole compactness $\mathcal{C}=1/2$ continuously; (iii) however, imposing subluminal wave propagation lowers the maximum compactness bound to $\mathcal{C}\approx0.462$, which we conjecture to be the maximum compactness of \emph{any} static elastic object satisfying causality; (iv) imposing also radial stability further decreases the maximum compactness to $\mathcal{C}\approx 0.389$. Therefore, although anisotropies are often invoked as a mechanism for supporting horizonless ultracompact objects, we argue that the black hole compactness cannot be reached with physically reasonable matter within GR and that true black hole mimickers require either exotic matter or beyond-GR effects., Comment: v2: 4 pages, 4 figures; Version submitted to PRD: Major revision extending the class of elastic materials to describe rigid materials beyond spherical-symmetry. Bounds on the compactness modified accordingly but discussion qualitatively similar to the previous version
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- 2022
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196. Question rewriting? Assessing its importance for conversational question answering
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Raposo, Gonçalo, Ribeiro, Rui, Martins, Bruno, and Coheur, Luísa
- Subjects
Computer Science - Computation and Language ,Computer Science - Machine Learning - Abstract
In conversational question answering, systems must correctly interpret the interconnected interactions and generate knowledgeable answers, which may require the retrieval of relevant information from a background repository. Recent approaches to this problem leverage neural language models, although different alternatives can be considered in terms of modules for (a) representing user questions in context, (b) retrieving the relevant background information, and (c) generating the answer. This work presents a conversational question answering system designed specifically for the Search-Oriented Conversational AI (SCAI) shared task, and reports on a detailed analysis of its question rewriting module. In particular, we considered different variations of the question rewriting module to evaluate the influence on the subsequent components, and performed a careful analysis of the results obtained with the best system configuration. Our system achieved the best performance in the shared task and our analysis emphasizes the importance of the conversation context representation for the overall system performance., Comment: Submitted manuscript (not anonymized) accepted to the 44th European Conference on Information Retrieval (ECIR) 2022. This preprint has not undergone peer review (when applicable) or any post-submission improvements or corrections. The Version of Record of this contribution is published in Advances in Information Retrieval, and is available online at https://doi.org/10.1007/978-3-030-99739-7_23
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- 2022
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197. The role of measurement uncertainty in the validation of a measurement procedure
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Raposo, Fernando C. and Ramsey, Michael H.
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- 2024
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198. Dynamic Visual Identities: Fundamental Principles of Their Design
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Fonte, Pedro, Martins, Nuno, Raposo, Daniel, Pereira, Leonardo, Tosi, Francesca, Editor-in-Chief, Germak, Claudio, Series Editor, Zurlo, Francesco, Series Editor, Jinyi, Zhi, Series Editor, Pozzatti Amadori, Marilaine, Series Editor, Caon, Maurizio, Series Editor, Martins, Nuno, editor, and Raposo, Daniel, editor
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- 2023
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199. Exploring Racial Diversity in Fashion Brand Advertising: An Instagram-Based Study of Three Prominent Brands
- Author
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Martins, Lara, Martins, Nuno, Pereira, Leonardo, Raposo, Daniel, Tosi, Francesca, Editor-in-Chief, Germak, Claudio, Series Editor, Zurlo, Francesco, Series Editor, Jinyi, Zhi, Series Editor, Pozzatti Amadori, Marilaine, Series Editor, Caon, Maurizio, Series Editor, Martins, Nuno, editor, and Raposo, Daniel, editor
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- 2023
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200. Redesigning the Visual Identity of Non-profit Organizations: The Case Study of Escola Oficina
- Author
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Vasconcelos, João, Martins, Nuno, Brandão, Daniel, Pereira, Leonardo, Raposo, Daniel, Tosi, Francesca, Editor-in-Chief, Germak, Claudio, Series Editor, Zurlo, Francesco, Series Editor, Jinyi, Zhi, Series Editor, Pozzatti Amadori, Marilaine, Series Editor, Caon, Maurizio, Series Editor, Martins, Nuno, editor, and Raposo, Daniel, editor
- Published
- 2023
- Full Text
- View/download PDF
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