178 research outputs found
COVID-19 Infection among Nursing Students in Spain: The Risk Perception, Perceived Risk Factors, Coping Style, Preventive Knowledge of the Disease and Sense of Coherence as Psychological Predictor Variables: A Cross Sectional Survey
The exploration of patterns of health beliefs about COVID-19 among nursing students may be beneficial to identify behaviors, attitudes and knowledge about contagion risk. We sought to analyze the variables of risk perception, perceived risk factors, coping style, sense of coherence and knowledge of preventive measures as possible predictors of having suffered from COVID-19. Participants were nursing students from 13 universities in Spain. Sociodemographic and health variables were collected. To test the independent variables, the Perception Risk Coping Knowledge (PRCK-COVID-19) scale was created and validated because there was no specific survey for young people adapted to the pandemic situation of COVID-19. It was validated with adequate psychometric properties. A total of 1562 students (87.5% female, mean age 21.5 +/- 5.7 years) responded. The high perception of the risk of contagion, the high level of knowledge and a coping style focused on the situation were notable. Significant differences by gender were found in the coping styles, problem-focused, avoidance and knowledge scales, with women scoring higher in all categories. The multiple regression analysis was significant (F = 3.68; p < 0.001). The predictor variables were the coping styles subscale search for support and the intrinsic and extrinsic perceived risk factors. Our model predicts that nursing students with a social support-based coping style are at a higher risk of becoming infected with COVID-19, based on their own health belief model
Effects of the Ketogenic Diet on Muscle Hypertrophy in Resistance-Trained Men and Women: A Systematic Review and Meta-Analysis
Reviews focused on the ketogenic diet (KD) based on the increase in fat-free mass (FFM)
have been carried out with pathological populations or, failing that, without population differentiation.
The aim of this review and meta-analysis was to verify whether a ketogenic diet without
programmed energy restriction generates increases in fat-free mass (FFM) in resistance-trained participants.
We evaluated the effect of the ketogenic diet, in conjunction with resistance training, on
fat-free mass in trained participants. Boolean algorithms from various databases (PubMed, Scopus.
and Web of Science) were used, and a total of five studies were located that related to both ketogenic
diets and resistance-trained participants. In all, 111 athletes or resistance-trained participants (87 male
and 24 female) were evaluated in the studies analyzed. We found no significant differences between
groups in the FFM variables, and more research is needed to perform studies with similar ketogenic
diets and control diet interventions. Ketogenic diets, taking into account the possible side effects, can
be an alternative for increasing muscle mass as long as energy surplus is generated; however, their
application for eight weeks or more without interruption does not seem to be the best option due to
the satiety and lack of adherence generated.University of Malaga (Campus of International Excellence Andalucia Tech
Gobierno electrónico y participación ciudadana en la Municipalidad de Surco, 2019
El gobierno electrónico es un tema que constantemente es tomado como referencia por
pido que el mundo globalizado avanza y lo que es aplicado a diversos temas permitiendo
así la implementación de diversas herramientas que permiten mejorar la calidad de los
servicios que pueden estar siendo brindados, sin embargo esto no indica que pueda existir
una relación en todo los caso, como podría ser al relacionarlo con participación ciudadana,
en donde se busca que el ciudadano tenga mayor injerencia en temas de gobierno local
permitiendo así una mejor toma de decisiones en beneficios de todos.
Es por eso que en la presente investigación, se tiene como objetivo determinar la relación
que existe entre el gobierno electrónico y la participación ciudadana, y en como el uso de
TIC permite mejorar la participación del ciudadano en los asuntos públicos dando así una
mejorar en los servicios brindados. La importancia de esta investigación permite
demostrar que tanto la participación ciudadana como el gobierno electrónico no tienen
relación alguna o injerencia una sobre otra, sin embargo el desarrollo del gobierno
electrónico permite una mejorar sustancial en los servicios que reciben los ciudadanos
Modelo genérico para el desarrollo de la arquitectura de software en metodologías ágiles
Este trabajo de tesis propone un modelo para definir elementos generales que permitan establecer directrices e incorporar explícitamente la arquitectura de software en metodologías ágiles sin contraponerse a los valores y principios del Manifiesto Ágil. Para el desarrollo del modelo se utiliza el Patrón de Procesos de MoProSoft, pues permite definir los elementos formales que lo integran. Además, se incluyen tareas propias adaptadas de los Paquetes de Puesta en Operación para el desarrollo de la arquitectura de software de tal manera que éstas no se contrapongan con el Manifiesto Ágil. Así mismo, se establece una generalización del ciclo de vida de las metodologías, considerando actividades y tres etapas (Inicio, Iteracionesy Transición) en base a las metodologías Scrum, XP, ASD, AUP y Kanban. Finalmente sepropone una guía que permite instanciar el modelo hacia la metodología ágil XP, replicable para el caso de las otras metodologí
Solutions to muscle fiber equations and their long time behaviour
We consider the nonlinear initial-boundary value problem governing the dynamical displacements of a one dimensional solid body with specific stress-strain law. This constitutive law results from the modelization of the mechanisms that rules the electrically activated mechanical behaviour of cardiac muscle fibers at the microscopic level. We prove global existence and uniqueness of solutions and we study their asymptotic behaviour in time. In particular we show that under vanishing external forcing solutions asymptotically converge to an equilibrium
Burnout in Palliative Care Nurses, Prevalence and Risk Factors: A Systematic Review with Meta-Analysis
Palliative care nurses are exposed to hard situations, death, and duel feelings in their daily
practice. These, and other work stressors, can favor burnout development. Thus, it is important to
analyze the prevalence and risk factors of burnout in palliative care nurses and estimate its prevalence.
A systematic review and meta-analysis was done with quantitative primary studies. n = 15 studies
were included with n = 6 studies including information for the meta-analysis. The meta-analytic
prevalence estimation of emotional exhaustion was 24% (95% CI 16–34%), for depersonalization
was 30% (95% CI 18–44%) and for low personal accomplishment was 28% with a sample of n = 693
palliative care nurses. The main variables related with burnout are occupational variables followed
by psychological variables. Some interventions to improve working conditions of palliative care
nurses should be implemented to reduce burnout
Prevalence of Depression and Related Factors among Patients with Chronic Disease during the COVID-19 Pandemic: A Systematic Review and Meta-Analysis
The management of chronic diseases in the midst of the COVID-19 pandemic is especially
challenging, and reducing potential psychological harm is essential. This review aims to determine
the prevalence of depression during the COVID-19 pandemic in patients with chronic disease, and
to characterize the impacts of related factors. A systematic review was conducted in accordance
with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines.
The meta-analysis was performed using StatsDirect software. The review identified 33 articles with
a total of 50,905 patients with chronic diseases. Four meta-analyses were performed to estimate
the prevalence of depression. In diabetic patients, the prevalence ranged from 17% (95% CI = 7–31)
(PHQ-9) to 33% (95% CI = 16–51) (PHQ-8); in obese patients, the prevalence was 48% (95% CI = 26–71);
and in hypertensive patients, the prevalence was 18% (95% CI = 13–24). The factors significantly
associated with depression were female sex, being single, deterioration in the clinical parameters
of diabetes, a decrease in self-care behavior, reduced physical activity and sleep time and fear of
contagion. The COVID-19 pandemic has significantly increased levels of depression among persons
with chronic disease. Pandemics and other emergency events have a major impact on mental health,
so early psychological interventions and health management policies are needed to reinforce chronic
patients’ physical and mental health
Two-Arm Flexible Thermal Strap
Airborne and space infrared cameras require highly flexible direct cooling of mechanically-sensitive focal planes. A thermal electric cooler is often used together with a thermal strap as a means to transport the thermal energy removed from the infrared detector. While effective, traditional thermal straps are only truly flexible in one direction. In this scenario, a cooling solution must be highly conductive, lightweight, able to operate within a vacuum, and highly flexible in all axes to accommodate adjustment of the focal plane while transmitting minimal force. A two-armed thermal strap using three end pieces and a twisted section offers enhanced elastic movement, significantly beyond the motion permitted by existing thermal straps. This design innovation allows for large elastic displacements in two planes and moderate elasticity in the third plane. By contrast, a more conventional strap of the same conductance offers less flexibility and asymmetrical elasticity. The two-arm configuration reduces the bending moment of inertia for a given conductance by creating the same cross-sectional area for thermal conduction, but with only half the thickness. This reduction in the thickness has a significant effect on the flexibility since there is a cubic relationship between the thickness and the rigidity or bending moment of inertia. The novelty of the technology lies in the mechanical design and manufacturing of the thermal strap. The enhanced flexibility will facilitate cooling of mechanically sensitive components (example: optical focal planes). This development is a significant contribution to the thermal cooling of optics. It is known to be especially important in the thermal control of optical focal planes due to their highly sensitive alignment requirements and mechanical sensitivity; however, many other applications exist including the cooling of gimbal-mounted components
Folding Elastic Thermal Surface - FETS
The FETS is a light and compact thermal surface (sun shade, IR thermal shield, cover, and/or deployable radiator) that is mounted on a set of offset tape-spring hinges. The thermal surface is constrained during launch and activated in space by a thermomechanical latch such as a wax actuator. An application-specific embodiment of this technology developed for the MATMOS (Mars Atmospheric Trace Molecule Occultation Spectrometer) project serves as a deployable cover and thermal shield for its passive cooler. The FETS fits compactly against the instrument within the constrained launch envelope, and then unfolds into a larger area once in space. In this application, the FETS protects the passive cooler from thermal damage and contamination during ground operations, launch, and during orbit insertion. Once unfolded or deployed, the FETS serves as a heat shield, intercepting parasitic heat loads by blocking the passive cooler s view of the warm spacecraft. The technology significantly enhances the capabilities of instruments requiring either active or passive cooling of optical detectors. This can be particularly important for instruments where performance is limited by the available radiator area. Examples would be IR optical instruments on CubeSATs or those launched as hosted payloads because radiator area is limited and views are often undesirable. As a deployable radiator, the panels making up the FETS are linked thermally by thermal straps and heat pipes; the structural support and deployment energy is provided using tape-spring hinges. The FETS is a novel combination of existing technologies. Prior art for deployable heat shields uses rotating hinges that typically must be lubricated to avoid cold welding or static friction. By using tape-spring hinges, the FETS avoids the need for lubricants by avoiding friction altogether. This also eliminates the potential for contamination of nearby cooled optics by outgassing lubricants. Furthermore, the tape-spring design of the FETS is also self-locking so the panels stay in a rigid and extended configuration after deployment. This unexpected benefit makes the tape-spring hinge design of the FETS a light, simple, reliable, compact, non-outgassing hinge, spring, and latch. While tape-spring hinges are not novel, they have never been used to deploy passive unfolding thermal surfaces (radiator panels, covers, sun shades, or IR thermal shields). Furthermore, because this technology is compact, it has minimal impact on the launch envelope and mass specifications. FETS enhances the performance of hosted payload instruments where the science data is limited by dark noise. Incorporating FETS into a thermal control system increases radiator area, which lowers the optical detector temperature. This results in higher SNR (signal-to-noise ratio) and improved science data
Evolution and Treatment of Academic Burnout in Nursing Students: A Systematic Review
Aim: To analyse the scientific literature related to the evolution of burnout syndrome
during nursing studies and the interventions for the treatment or prevention of this syndrome in
nursing students. Methods: A systematic review of the PubMed, Scopus, and CINAHL databases
was performed in August 2022 using the search phrase “burnout AND nursing students” to extract
experimental and longitudinal studies. Results: Eleven relevant studies were obtained for analysis.
Four were experimental, and seven were cohort studies. According to these studies, the interventions
reduced burnout overall, but on occasion, the burnout scores for some aspects increased, as did the
prevalence. Psychological and work environment-related variables were the most important factors
predicting burnout. Conclusion: Burnout (i.e., emotional exhaustion and depersonalisation) tends to
increase during nursing studies. Related factors include personality, coping strategies, life satisfaction,
and the work environment. Interventions such as progressive muscle relaxation, behavioural therapy,
and recreational music may alleviate burnout.FEDER/Consejería de Universidad, Investigación e Innovación
de la Junta de AndalucíaProject P20-0062
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