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Bartolomé de las Casas y su locura quijotesca, el intra-diálogo o aparte dramático con el par Sancho Panza / don Quijote en Las Casas: el Obispo de Dios, de Miguel Ángel Asturias
No full textTelevision watching during meals is associated with higher ultra-processed food consumption and higher free sugar intake in childhood
No full textBackground: The consumption of ultra-processed foods (UPFs) is associated with an increased risk of noncommunicable diseases and mortality in adults. The aim of this study was to analyse the association between mealtime television (TV) watching and UPF consumption in childhood.
Materials and methods: Participants in the SENDO project recruited in 2015-2023 were classified into three categories based on the frequency at which they watched TV during meals. Dietary information was collected with a validated 147-item semi-quantitative food frequency questionnaire. Generalized mixed models were used to compare mean UPF consumption between groups after accounting for the main confounders. The predictive margins of participants who had a free sugar intake >10% of their energy intake in each category were also calculated.
Results: Totally 970 subjects (482 girls) with a mean age of 5.00 years (SD = 0.85) were studied. Children who watched TV during meals ≥4 times/week consumed a mean of 4.67% more energy from UPF than those who watch TV 10% of their energy intake in the categories of <3 times/month, 1-3 times/week and ≥4 times/week exposure to TV during meals were 44.9%, 45.9% and 58.7%, respectively.
Conclusion: TV watching during meals is associated with higher consumption of UPFs and a higher risk of exceeding 10% of TEI in free sugar intake in childhood
In vitro digestion of beef and vegan burgers cooked by microwave technology: effects on protein and lipid fractions
No full textCommercial beef burgers and vegan analogues were purchased and, after a microwave treatment, they were
submitted to an in vitro digestion (INFOGEST). Vegan cooked burgers showed similar protein content (16–17 %)
but lower amounts of total peptides than beef burgers. The protein digestibility was higher in beef burgers.
Peptide amounts increased during in vitro digestion, reaching similar amounts in both types of products in the
micellar phase (bioaccessible fraction). The fat content in cooked vegan burgers was significantly lower than in
beef burgers (16.7 and 21.2 %, respectively), with a higher amount of PUFAs and being the lipolysis activity,
measure by FFA, less intense both after cooking and after the gastrointestinal process. Both types of cooked
samples showed high carbonyl amounts (34.18 and 25.51 nmol/mg protein in beef and vegan samples,
respectively), that decreased during in vitro digestion. On the contrary, lipid oxidation increased during
gastrointestinal digestion, particularly in vegan samples. The antioxidant capacity (ABTS and DPPH) showed
higher values for vegan products in cooked samples, but significantly decreased during digestion, reaching
similar values for both types of products
Enhancing bone regeneration: A mechanobiology-centric approach to TPMS-based bone replacements.
No full textCellular porous structures are increasingly used for biomedical applications. Triply Periodic Minimal Surfaces (TPMS) are mathematically defined cellular structures whose geometry can be quickly adjusted to achieve the desired mechanical response (structural and fluid). This has made them desirable as bioinspired materials for bone replacement. Scaffolds for bone replacements should be designed to respond to the mechanical environment: they should provide enough structural support during bone regeneration, while also enabling nutrient diffusion through its pores to allow cell proliferation and differentiation. Mechanobiology plays an important role in bone regeneration and understanding the interaction between the scaffold's geometry, its material, and the mechanobiological environment is required to improve tissue regeneration. The main purpose of this dissertation is to improve the understanding of the mechanical behavior and mechanobiological properties of TPMS structures to design bone replacements that can accurately mimic bone properties.
The design of TPMS scaffolds was parametrized and automated to target bone porosity and pore size while maintaining a good manufacturability. Then, the structural and fluid flow properties of the scaffolds were assessed using Finite Element (FE) and Computational Fluid Dynamics (CFD) models respectively. The results were introduced into an uncoupled tissue differentiation model to predict the TPMS architectures that could be most promising to induce bone differentiation. Finally, a previously validated mechanobiological computational model (FE) was enhanced to evaluate the bone regeneration potential of complex porous structures and integrate the influence of patient-specific properties and clinical strategies to maximize bone regeneration.
The obtained results showed that the permeability of the studied TPMS architectures was affected by pore distribution and architecture. In addition, a novel analytical model that enables the prediction of the permeability values of TPMS structures based on geometrical parameters was developed. The results also indicated that the TPMS Gyroid architecture was the most suitable for promoting tissue differentiation when considering both the structural and fluid flow properties.
Furthermore, the computational mechanobiological model successfully assessed the ability of various scaffolds to promote bone regeneration, emphasizing the importance of scaffold’s geometry and material. The bone ingrowth within the scaffold pores demonstrated that the scaffold's geometrical properties influence cellular diffusion and strain distribution, resulting in differences in regenerated bone volume and distribution. Furthermore, bone ingrowth was found to be material-dependent, implying that the material can be used to fine-tune strain distribution and improve bone growth. Similarly, the use of clinical strategies and consideration of the host's physiological characteristics resulted in variations in bone regeneration, emphasizing the importance of incorporating such parameters into the design process of bone substitutes.
In conclusion, this dissertation provides a framework for designing optimal patient-specific strategies to promote bone regeneration, thereby improving the conceptualization and design of bone replacements
Persistence of fisheries production: a disaggregated analysis in 31 OECD Countries
No full textPrevious studies have focussed on different aspects of fisheries production in several countries. However, the literature has been largely silent on the persistence of fisheries production, which has numerous important policy implications. In this article, we examine time series data corresponding to fisheries production in a group of 31 OECD countries. The analysis focuses on three distinct production series for each country: total fisheries production, aquaculture production, and capture fisheries production, and the time period spans from 1960 to 2020. Using fractional integration methods, the empirical findings provide evidence for persistence in fisheries production and its two components in the majority of the OECD countries examined. Persistence is observed in 29 countries in the case of the total fisheries production, 28 countries in the case of capture fisheries production, and 28 countries in the case of aquaculture production. Evidence of mean reversion is observed in Chile and Colombia for the total fisheries production, and in Belgium, Colombia, and Israel for the capture fisheries production. There is support for mean reversion in aquaculture production data for France, the Netherlands and Poland. An implication of the results is that shocks to the fisheries production or its components are permanent or long-term in nature. Therefore, long-term measures are need to address any disruptions in the fishery sector
Control method based on real–imaginary decomposition at the switching frequency for multiple active bridge converters.
No full textIsolated multiple port DC/DC converters, such as the Multiple Active Bridge (MAB) converter, have many recent applications, such as interconnection between grids, isolated uninterruptible power sources (UPSs) and electric vehicle chargers. MAB converter is an attractive solution from the point of view of the hardware because of its symmetry and its capability to be extended to any number of bridges with a moderate number of components. However, the main challenge of this converter is the control method in order to achieve independent control between the different ports and to minimize recirculating currents. For that reason, three-port power converters have been already investigated, but many improvements can be done for a larger number of ports. This paper proposes to use a Fourier decomposition for the main power signals to separate their real and imaginary parts. As the signals work at the switching frequency, this decomposition is developed with analog electronics. Based on that, a general control method for regulating the power at the different ports is presented using the first harmonic component, which delivers most of the power. In this proposal, two nested control loops ensure accuracy for the DC power flow. Simulation and experimental results validate the proposal.
The paper proposes an independent method of control of a multi active bridge converter based on a dq-decomposition at the switching frequency. The method allows a fast response and an independent control of bidirectional power flow in all of the ports.imag
La concentración de los adultos jóvenes (20-34 años) en las grandes áreas urbanas de España
No full text¿Están los jóvenes españoles "obligados" a migrar a las grandes regiones urbanas para labrarse un porvenir? ¿Hasta qué punto Madrid y Barcelona son un destino casi inevitable para los recién graduados universitarios?
A pesar de la percepción generalizada y unánime sobre este tipo de migraciones que emprenden los adultos jóvenes al terminar sus estudios, la respuesta a estos interrogantes es difícil de abordar. En primer lugar, porque las fuentes estadísticas disponibles no permiten cruzar las variables necesarias para conocer los flujos migratorios de los adultos jóvenes, en particular de los más cualificados; y, por otro lado, porque hay un importante problema de subregistro de esta población en los primeros años tras la migración (es decir, muchos no se empadronan hasta cierto tiempo después).
Bajo estas premisas, el contenido de este trabajo se centra en analizar la localización espacial de los adultos jóvenes, de entre 20 y 34 años de edad, en el territorio español y —más en concreto— en las dos grandes áreas urbanas* del país: Madrid (con Guadalajara y Toledo); y Barcelona (junto a Igualada y Manresa).
Complementariamente, se analiza la evolución de la tasa de aloctonía provincial entre 2011 y 2021 de los adultos jóvenes con estudios superiores, como indicador indirecto del cambio acontecido en menos de una década
Is Pain Metaphysically Evil (Malum Simpliciter)? Some Thoughts from a Thomistic Perspective
No full textContrary to the commonly assumed opinion that Christianity sees pain as intrinsically evil – where evil is defined as the lack of something good – Aquinas defines pain not as a privation but rather a passion of the soul, i.e., an emotion that depends on sensual and/or intellective cognition of something evil, is good in itself, and may serve a purpose. This article offers a formalized version of the Thomistic definition of pain and related negative (unpleasant) emotions experienced by humans. It also compares and contrasts this view with some contemporary scientific and philosophical models of pain
Propuesta de un nuevo frame para el patrimonio inmobiliario de titularidad eclesiástica
No full textSumario: Introducción. 1. Nuevo marco del patrimonio estable de titularidad eclesiástica: Reddere. 2. Transparente. 2.1. Introducción. 2.2. Medidas para hacer más transparente el patrimonio inmobiliario de titularidad eclesiástica. 3. Sostenible. 3.1. Introducción. 3.2. Medidas para hacer más sostenible el patrimonio inmobiliario de titularidad eclesiástica. 4. Solidario. 4.1. Introducción. 4.2. Medidas para hacer visible y verificable la dimensión solidaria del patrimonio inmobiliario de titularidad eclesiástico. Conclusiones. Bibliografía. 1. Fuentes. 2. Autores. 3. Páginas Web consultadas. 4. Notas de prensa. Índice de la Tesis Doctora
Armani Hotels & Resorts: Luxury fashion brand extensions in the hospitality service industry and its mediatic communication strategies: A content analysis
No full textIn recent years, luxury fashion players, including Armani, have converged
into extensions in the luxury hospitality sector. This diversification strategy binds
together the traditional goods centered around retail fashion luxury brands with the
hospitality industry, by including brand DNA and image of its own fashion portfolio
branched out to a luxury hospitality setting. The communication actions employed to
market these ventures imply a strategic approach, as companies of such magnitude
have to adjust depending on desired target, audience, brand positioning, image and
accessibility. Armani Hotels & Resorts are a seminal case study commented
amongst academics like Villena Alarcón, 2019 and Dallabona, 2019. Given its
relevance, this research aims to analyze the communication strategies employed by
Armani to market their Hotels and Resorts venues through a content analysis in
order to obtain clues about their desired target reach providing a deep study of
communication information disseminated through communication channels utilized to
promote two ventures: Armani Hotel Dubai and Armani Hotel Milan. The examination
of the communication strategies employed by luxury fashion players into the luxury
hospitality industry is an often overlooked field of study, henceforth, this study will
provide a structured framework to assess and analyze the implications of each
communication outlet utilized