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1.
Applied Sciences ; 13(11):6437, 2023.
Article in English | ProQuest Central | ID: covidwho-20242320

ABSTRACT

Physical inactivity is becoming an important threat to public health in today's society. The COVID-19 pandemic has also reduced physical activity (PA) levels given all the restrictions imposed worldwide. In this work, physical activity interventions supported by mobile devices and relying on control engineering principles were proposed. The model was constructed relying on previous studies that consider a fluid analogy of Social Cognitive Theory (SCT), which is a psychological theory that describes how people acquire and maintain certain behaviors, including health-promoting behaviors, through the interplay of personal, environmental, and behavioral factors. The obtained model was validated using secondary data (collected earlier) from a real intervention with a group of male subjects in Great Britain. The present model was extended with new technology for a better understanding of behavior change interventions. This involved the use of applications, such as phone-based ecological momentary assessments, to collect behavioral data and the inclusion of simulations with logical reward conditions for reaching the behavioral threshold. A goal of 10,000 steps per day is recommended due to the significant link observed between higher daily step counts and lower mortality risk. The intervention was designed using a Model Predictive Control (MPC) algorithm configured to obtain a desired performance. The system was tested and validated using simulation scenarios that resemble different situations that may occur in a real setting.

2.
J Colloid Interface Sci ; 645: 627-638, 2023 Sep.
Article in English | MEDLINE | ID: covidwho-2313817

ABSTRACT

There is a close relationship between the SARS-CoV-2 virus and lipoproteins, in particular high-density lipoprotein (HDL). The severity of the coronavirus disease 2019 (COVID-19) is inversely correlated with HDL plasma levels. It is known that the SARS-CoV-2 spike (S) protein binds the HDL particle, probably depleting it of lipids and altering HDL function. Based on neutron reflectometry (NR) and the ability of HDL to efflux cholesterol from macrophages, we confirm these observations and further identify the preference of the S protein for specific lipids and the consequent effects on HDL function on lipid exchange ability. Moreover, the effect of the S protein on HDL function differs depending on the individuals lipid serum profile. Contrasting trends were observed for individuals presenting low triglycerides/high cholesterol serum levels (LTHC) compared to high triglycerides/high cholesterol (HTHC) or low triglycerides/low cholesterol serum levels (LTLC). Collectively, these results suggest that the S protein interacts with the HDL particle and, depending on the lipid profile of the infected individual, it impairs its function during COVID-19 infection, causing an imbalance in lipid metabolism.


Subject(s)
COVID-19 , Lipoproteins, HDL , Humans , Spike Glycoprotein, Coronavirus , SARS-CoV-2/metabolism , Cholesterol , Triglycerides
3.
Frontiers in public health ; 10, 2022.
Article in English | EuropePMC | ID: covidwho-2092976

ABSTRACT

Introduction The COVID-19 pandemic has brought about important changes. On March 14, 2020, a strict home confinement was decreed in Spain. Children did not attend school and were not allowed to leave their homes. The aim of this study was to determine the emotional state of these children, as well as associated factors. Material and methods A cross-sectional descriptive study was conducted using an online questionnaire sent by cell phone. This survey includes sociodemographic items and questions concerning the emotional impact of the lockdown. With the questions on emotions, two categories of emotional state were established with the variables fear, irritability, sadness and somatization: those who were less or more emotionally affected. A multivariate logistic model was used to estimate the associations between the variables. Results A total of 3,890 responses were obtained. The mean age of the children was 6.78 years (range 0 to 16). A score indicating poor emotional state was reported by 40.12%. The multivariate logistic model for poor emotional state was directly associated with having less appetite, sleep disturbances, and with parents' beliefs that their child will have difficulties returning to normal life after lockdown. A better emotional state was associated with being an only child, access to outdoor spaces at home, having pets, and parents informing their children about the pandemic using creative explanations. Conclusions During strict home confinement, a considerable emotional impact was observed in children as described by their parents. Specific elements were associated with a better or poorer emotional state.

4.
Sustainability ; 14(20):12989, 2022.
Article in English | MDPI | ID: covidwho-2071750

ABSTRACT

Color is a complex communicative element. At the level of artistic creation, this component influences both formal aspects and symbolic weight, directly affecting the construction of the message, and its associated emotion. During the COVID-19 pandemic, people generated countless images transmitting the subjective experiences of this event, and the social network Instagram was used to share this visual material. Using the repository of images created in the Instagram account CAM (The COVID Art Museum), we propose a methodology to understand the use of color and its emotional relationship in this context. The proposed methodology consists of creating a model that learns to recognize emotions via a convolutional neural network using the ArtEmis database. This model will subsequently be applied to recognize emotions in the CAM dataset, also extracting color attributes and their harmonies. Once both processes are completed, we combine the results, generating an expanded discussion on the usage of color and emotion. The results indicate that warm colors and analog compositions prevail in the sample. The relationship between emotions and composition shows a trend in positive emotions, reinforced by the results of the emotional relationship analysis of color attributes (hue, saturation, and lighting).

5.
Empirical Studies of the Arts ; : 02762374221104059, 2022.
Article in English | Sage | ID: covidwho-1868897

ABSTRACT

Visual representation as a means of communication uses elements to build a narrative. We propose using computer analysis to perform a quantitative analysis of the elements used in the visual creations that have been produced in reference to the epidemic, using 927 images compiled from The Covid Art Museum's Instagram account. This process has been carried out with techniques based on deep learning to detect objects contained in each study image. The research reveals the elements that are repeated in images to create narratives and the relations of association that are established in the sample. The predominant discourses in the sample do not show concern for the effects of illness. On the contrary, the impact and effects of confinement, through the prominent presence of elements such as human figures, windows, and buildings, are the most expressed experiences in the creations analyzed.

6.
Research Square ; 2022.
Article in English | EuropePMC | ID: covidwho-1786458

ABSTRACT

Introduction: The COVID-19 pandemic has brought about important changes. On March 14, 2020, a strict home confinement was decreed in Spain. Children did not attend school and were not allowed to leave their homes. The aim of this study was to determine the emotional state of these children, as well as associated factors. Material and methods: A cross-sectional descriptive study was conducted using an online questionnaire sent by cell phone. This survey includes sociodemographic items and questions concerning the emotional impact of the lockdown. With the questions on emotions, two categories of emotional state were established with the variables fear, irritability, sadness and somatization: those who were less or more emotionally affected. A multivariate logistic model was used to estimate the associations between the variables. Results: A total of 3890 responses were obtained. The mean age of the children was 6.47 years (range 0 to 17). A score indicating poor emotional state was reported by 40.12%. The multivariate logistic model for poor emotional state was directly associated with having less appetite, sleep disturbances, and with parents’ beliefs that their child will have difficulties returning to normal life after lockdown. A better emotional state was associated with being an only child, access to outdoor spaces at home, having pets, and parents informing their children about the pandemic using creative explanations. Conclusions: During strict home confinement, a considerable emotional impact was observed in children as described by their parents. Specific elements were associated with a better or poorer emotional state.

7.
Int J Environ Res Public Health ; 18(16)2021 08 18.
Article in English | MEDLINE | ID: covidwho-1360764

ABSTRACT

Psychological distress and psychosocial factors are studied in the sports context in players of various specialties, but are only little studied with coaches who carry out their work with these athletes; that is where we put the emphasis, trying to determine the perception of coaches on psychological distress and psychosocial risk factors that may influence their sports work in times of a pandemic. It is an ex post facto study with a single-group retrospective design, with a representative sample of 94 coaches out of a possible 109. The Kessler Psychological Distress Scale and the short version of the ISTAS21 Psychosocial Risk Assessment at Work Questionnaire were adapted to the sports context. The results show that the youngest, those with the least experience and level 1 and level 2 coaches show the highest levels of stress. According to the psychosocial risk assessment, level 1 and 2 coaches, with experience between 6 to 10 years, are in the risk zone. Therefore, it is important to work with a group of coaches who are in the psychosocial risk zone and with high levels of psychological discomfort in order to avoid mental, emotional and physical stress, for the good performance of their work in the best possible conditions.


Subject(s)
Basketball , COVID-19 , Psychological Distress , Humans , Pandemics , Retrospective Studies , SARS-CoV-2 , Stress, Psychological/epidemiology
8.
Arte, Individuo y Sociedad ; 33(2):621-627, 2021.
Article in Spanish | ProQuest Central | ID: covidwho-1302693

ABSTRACT

José Ruiz es un artista que ha decido confinarse durante la cuarentena provocada por el COVID-19 en la galería de arte Espacio El Dorado (Bogotá, Colombia). Como parte del proyecto “Impresiones sobre actualidad” lleva 109 días encerrado realizando una cuarentena de impresión que reflexiona sobre el concepto de actualidad mediante el uso de la palabra “Hoy”. Previo al confinamiento, los visitantes al espacio facilitaban un enunciado que contuviera dicha palabra seguida de una inquietud personal, grupal, nacional, global o universal, que era impresa para formar parte de la instalación artística realizada en la galería. Durante el confinamiento, la recepción de enunciados se ha realizado a través de internet. Una experiencia que además es emitida en vivo las 24 h. del día. Un proyecto con unos antecedentes que parten de su interés por los archivos y las publicaciones que viene desarrollando desde hace años. Mediante esta entrevista conoceremos su trayectoria, los antecedentes del proyecto y su experiencia durante el confinamiento en la galería de arte.Alternate abstract: José Ruiz is an artist who has decided to be confined during the quarantine caused by the COVID-19 in the art gallery Espacio El Dorado (Bogota , Colombia). As part of the project “Impression on present”, he has been in lockdown for 109 days doing a “print quarantine” that reflects on present concept using of the word "Today. Before confinement, visitors provided a sentence that contained that word followed by a personal, group, national, global or universal concern, which was printed to form part of the artistic installation made in the gallery. Nowadays, the sentence reception is done via internet. An experience that is also broadcast live 24 hours a day. This is a project with backgrounds based on his interest in archives and publications that he has been developing for years. Through this interview we will understand your trajectory, the background of the project and your experience during the confinement at the art gallery.

9.
Sustainability ; 13(2):582, 2021.
Article in English | MDPI | ID: covidwho-1016248

ABSTRACT

As a result of the global pandemic caused by COVID-19, universities have carried out teaching in a digital way, accelerating the inclusion and use of technologies in methodological adaptation. The research aims to ascertain the perception that students at the Faculty of Education Sciences of the University of Granada have regarding the pedagogical model adopted in the virtual learning environment during confinement through the second semester of the 2019–2020 academic year. The information collection method was an online questionnaire, using simple random sampling with proportional affixing 0.5, 95% confidence level and maximum permissible error of 4.7%. The results demonstrate a generalised dissatisfaction of the students, being fundamental to carry out the transition of the educational processes and training of the teaching staff. The implementation of active methodologies increases due to the virtual condition, specifically the flipped classroom methodology, but students manifest generalised dissatisfaction regarding the adequate methodological development and the involvement of professors. There is an outstanding use of e-mail and the virtual learning platform (PRADO), although they consider that they do not have the appropriate knowledge about image editors, video, computer graphics, synchronous response systems and anti-plagiarism tools. The students surveyed express that the tutoring functions, tasks and beliefs of the teaching staff in e-learning are not satisfactory.

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