587 research outputs found
Multimodal harbor wave climate characterization based on wave agitation spectral types
A new numerical methodology reaching an improved characterization of the historical harbor wave agitation climate is presented in this work. A detailed frequency-direction wave spectrum definition of wave agitation patterns within harbor basins is achieved, providing an in-depth description of the whole multidirectional and multireflective wave patterns occurring as a natural harbor response. This constitutes an advance from the monoparametric/aggregated wave height parameter-based approaches, traditionally used for wave agitation characterization, to a multivariate and disaggregated representation of in-port waves and the multiple wave transformation processes within harbor basins. In addition, the wave agitation spectral type concept is proposed, whereby the wave agitation spectral shapes are classified into representative clusters of the historical wave agitation response in a harbor. A detailed multiannual analysis of the wave agitation response, based on the different in-port spectral wave components, their relation with the outer-harbor forcing waves, and their interactions with the harbor structures, can be achieved with the proposed methodology. This improved harbor wave climate characterization can be especially relevant for port operability and downtime analyses. The methodology is applied and validated in Africa basin (Las Palmas Port, Spain).This work was supported by a FPU (Formación de Profesorado Universitario) grant from the Spanish Ministry of Science, Innovation and Universities to the first author (FPU18/03046). This work was also partially funded under the State R&D Program Oriented to the Challenges of the Society (PID2020-118285RB-I00) of the Spanish Ministry of Science, Innovation and Universities
E47 and Id1 interplay in epithelial-mesenchymal transition
E12/E47 proteins (encoded by E2A gene) are members of the class I basic helix-loop-helix (bHLH) transcription factors (also known as E proteins). E47 has been described as repressor of E-cadherin and inducer of epithelial-mesenchymal transition (EMT). We reported previously that EMT mediated by E47 in MDCK cells occurs with a concomitant overexpression of Id1 and Id3 proteins. Id proteins belong to class V of HLH factors that lack the basic domain; they dimerise with E proteins and prevent their DNA interaction, thus, acting as dominant negative of E proteins. Here, we show that E47 interacts with Id1 in E47 overexpressing MDCK cells that underwent a full EMT as well as in mesenchymal breast carcinoma and melanoma cell lines. By conducting chromatin immunoprecipitation assays we demonstrate that E47 binds directly to the endogenous E-cadherin promoter of mesenchymal MDCK-E47 cells in a complex devoid of Id1. Importantly, our data suggest that both E47 and Id1 are required to maintain the mesenchymal phenotype of MDCK-E47 cells. These data support the collaboration between E47 and Id1 in the maintenance of EMT by mechanisms independent of the dominant negative action of Id1 on E47 binding to E-cadherin promoter. Finally, the analysis of several N0 breast tumour series indicates that the expression of E47 and ID1 is significantly associated with the basal-like phenotype supporting the biological significance of the present findingsThis work was supported by the Spanish Ministry of Education and Science (SAF2007-63051; SAF2010-21143; Consolider Ingenio 2010 CDS07/00017) to
A.C.; (SAF2007-63075 and SAF2010-20175) to G.M.B.; Comunidad de Madrid (S2010/BMD-2303) to A.C and G.M.
Ansiedad en competición y tiempo de disparo en tiradoras de pistola deportiva
Olympic shooting is a precision sport, influenced by both physical and psychological parameters. The main objective of the study was to analyze the effects of competitive anxiety in female sport pistol shooting during the qualification and the final rounds. Twenty-three women, including 5 elite shooters, who competed at a national Spanish Olympic shooting championship, participated in the study. All shooters completed a socio-demographic and a Competitive State Anxiety Inventory-2 (CSAI-2) questionnaire 10 minutes before each competition round. Performance was measured at competition by use of electronic targets Sius Ascor D941. Demographic and anxiety variables were registered using a questionnaire and the CSAI-2, respectively. Wilcoxon signed-rank, U Mann–Whitney tests, linear regressions and Pearson correlations were used for the data analysis. Our results showed that pre-competition anxiety impairs performance and increases trigger time. In addition, there are a strong relation between the physical condition and the psychological variables of somatic anxiety and self-confidence for the finalist shooters. We conclude that anxiety modified trigger time and that shooters’ physical condition is inversely related to anxiety and positively related with performance and self-confidence. For this reasons, physical condition programs could be recommended for Olympic shootingEl tiro olímpico es un deporte de precisión, influenciado por factores físicos y psicológicos. El principal objetivo del estudio fue analizar los efectos de la ansiedad precompetitiva y competitiva en mujeres de la modalidad de pistola deportiva durante la clasificación y la final olímpica. Veintitrés mujeres, incluyendo cinco tiradoras de élite, que compitieron en un Campeonato de España participaron en el estudio. Todas las deportistas completaron un cuestionario sociodemográfico y el CSAI-2 10 minutos antes de cada ronda de competición. El rendimiento fue medido mediante blancos electrónicos Sius Ascor D941 durante la competición. Para el análisis de datos se usaron las pruebas de Wilcoxon, U Mann–Whitney, regresiones lineales y correlaciones de Pearson. Los resultados mostraron que la ansiedad precompetitiva afecta al rendimiento y aumenta el tiempo de disparo. Además, existe una fuerte correlación entre la percepción de la condición física y las variables psicológicas de ansiedad somática y autoconfianza para las atletas finalistas. Nosotros concluimos que la ansiedad modifica el tiempo de disparo y que la condición física de las tiradoras se relaciona de forma inversa con la ansiedad y de forma positiva con la autoconfianza y el rendimiento. Por estas razones, programas de actividad física podrían ser recomendables en tiro olímpico.Actividad Física y Deport
El papel de factores físicos y psicológicos en la calidad de vida de pacientes con FM
Setzenes Jornades de Foment de la Investigació (Any 2011)La fibromialgia (FM) es una enfermedad de etiología desconocida que se caracteriza por dolor crónico generalizado que el paciente localiza en el aparato locomotor. La FM produce un gran impacto psicológico, siendo la depresión y la ansiedad las patologías más comúnmente asociadas a esta enfermedad. Estos pacientes perciben un mayor deterioro de su calidad de vida (CV) en comparación con otras personas con enfermedades reumáticas o crónicas. El curso impredecible del dolor, su presencia continuada y persistente, las limitaciones físicas y psicosociales, junto a los trastornos psicológicos comórbidos encontrados en la FM, hacen de esta enfermedad una de las más incapacitantes. El objetivo principal de este trabajo consistió en estudiar los factores tanto físicos como psicológicos que influyen en la CV de pacientes con FM. Participaron un total de 63 mujeres diagnosticadas de FM (media de edad: 49.53 años) y se utilizaron medidas relacionadas con el dolor, la fatiga, la salud general, depresión y otros síntomas psicopatológicos y la CV. Los resultados mostraron, tras el análisis de regresión, que las variables que mayor impacto tenían sobre la CV eran dos físicas (interferencia del dolor en las actividades y rol físico) y dos psicológicas (sintomatología obsesiva-compulsiva y de ideación paranoide). Estos resultados sustentan la idea de la necesidad de abordar esta enfermedad desde un punto de vista multidisciplina
Knowledge, Attitudes, and Intentions towards HIV Pre-Exposure Prophylaxis among Nursing Students in Spain
Human immunodeficiency virus (HIV) infection is one of the main causes of morbidity and mortality worldwide. Among the preventive approaches proposed to control this disease is pre-exposure prophylaxis (PrEP), whose effectiveness depends on the medication adherence. The aim of the present study was to determine the knowledge and attitudes about PrEP among a sample of Spanish nursing students as well as their intentions of receiving it in case it was indicated. An observational cross-sectional descriptive study was carried out. A total of 570 nursing students from the University of Santiago de Compostela (Spain), ≥18 years old and of both sexes were invited to self-complete a questionnaire between February and March 2020. A total of 352 students decided to participate in the study. Participants had low knowledge [overall knowledge score 1(0–2)] and a neutral attitude towards PrEP. The intention of receiving PrEP improved significantly after the completion of the questionnaire and the administration of information about PrEP (p = 0.039; before: 23.58% and after: 93.77%). Nursing staff play an important role in the prevention of sexually transmitted diseases, so their training in preventive strategies, such as PrEP, could help to reduce the incidence of new cases of HIV infectionS
Heart Rate Variability monitoring during Interferential Current application in the lower back area : a cross-sectional study
[Abstract] Vasovagal reactions may occur occasionally during electrical stimulation using interferential current (IFC). The purpose of this study was to examine variations in autonomic activity during the application of IFC in asymptomatic participants by analysis of their heart rate variability (HRV). Seventy-three male volunteers were randomly assigned to a placebo group (n = 36; HRV was documented for 10 min, both at rest and during a placebo intervention) and an intervention group (n = 37; HRV was documented for 10 min in two conditions labelled as (1) rest and (2) application of IFC technique on the lumbar segment). The diameters of the Poincaré plot (SD1, SD2), stress score (SS), and the ratio between sympathetic and parasympathetic activity (S/PS) were measured. After interventions, differences amongst the placebo group and the IFC group were found in SD2 (p < 0.001), SS (p = 0.01) and S/PS ratio (p = 0.003). The IFC technique was associated with increased parasympathetic modulation, which could induce a vasovagal reaction. Monitorization of adverse reactions should be implemented during the application of IFC technique. HRV indicators might have a part in prevention of vasovagal reactions. Further studies in patients with lumbar pain are needed to explore possible differences in HRV responses due to the presence of chronic pai
Opiniones de estudiantes universitarios asociadas a capacidades resilientes desarrolladas durante la pandemia Covid-19. Una visión desde las dimensiones emocional, ética y cognitiva
En este documento presentamos un primer avance del análisis de datos de una investigación que tuvo como finalidad conocer la opinión de estudiantes universitarios sobre cómo su proceso formativo apoyó el desarrollo de capacidades resilientes y las condiciones institucionales que le permitieron potenciarlas. Se realizó una consulta en una universidad pública de la zona centro-sur de México. Se aplicó un instrumento que examinó tres dimensiones de análisis: emocional, ética y cognitiva, así como las condiciones que aportaba la institución para favorecer una formación orientada al desarrollo de capacidades resilientes durante la pandemia Covid-19. Los resultados muestran que los universitarios reconocieron haber desarrollado capacidades resilientes durante el confinamiento, y que la universidad generó algunas condiciones para apoyar su proceso formativo. En la discusión se destaca que el tema de resiliencia debiera ser integrado como nodo articulador de actividades formativas y generar programas que favorezcan el desarrollo de este tipo de capacidades.
Potenciando las emociones positivas y la activación comportamental en pacientes con fibromialgia mediante la utilización de nuevas tecnologías
Setzenes Jornades de Foment de la Investigació (Any 2011)La fibromialgia es un síndrome de dolor crónico de etiología
desconocida, caracterizado por dolor musculoesquelético generalizado, a
menudo acompañado de fatiga, trastornos del sueño y depresión. La
complejidad del trastorno incluye factores biológicos, psicológicos y
sociales, que causan un fuerte impacto en la calidad de vida de las
personas. La mejor manera de abordar esta complejidad es desde una
perspectiva multidimensional, en la cual los aspectos psicológicos han
cobrado una gran relevancia.
En los últimos años, se han desarrollado programas de intervención
cognitivo-comportamental que han mostrado eficacia en el tratamiento
de la fibromialgia. Estos programas incluyen distintos componentes como
la relajación, mindfulness, programación de actividades y terapia
cognitiva. Uno de los componentes centrales es la activación
comportamental que intenta que las personas participen, de manera
equilibrada, en un mayor número de actividades que les sean
significativas.
Pese a la utilidad de estos programas, la eficacia conseguida todavía
es limitada. Nuestra hipótesis es que el uso de nuevas tecnologías puede
potenciar la eficacia de algunos componentes del tratamiento. Es por esto
que el objetivo central de este trabajo consiste en presentar los
resultados preliminares de un sistema de realidad virtual diseñado para
inducir emociones positivas y promover la actividad en pacientes con
fibromialgia.
En el contexto de un tratamiento grupal de seis sesiones, 20
pacientes recibieron un componente específico de inducción de
emociones diseñado con el apoyo de un entorno virtual flexible, con el fin
de mejorar el componente de activación conductual del tratamiento. Se
realizó una evaluación Pre-Post inducción, en la que se evaluó la
intensidad del dolor, la fatiga, el estado de ánimo, la intensidad de
distintas emociones, la motivación y la capacidad para realizar
actividades. Los resultados mostraron cambios significativos en su estado
de ánimo, en las emociones positivas y en la capacidad y motivación para
realizar actividades
The effects of an appropriate behavior program on elementary school children social skills development in physical education
The purpose of this study was to see the effects of an appropriate behavior development program in relation to the improvement of fair play and social skills behaviors of elementary school children during the physical education class. The participants of this study were 204 students from 5th and 6th grade from seven different public schools in Castilla-La Mancha, Spain. Data was collected through a questionnaire to measure students' pre and post appropriate behaviors when winning, appropriate behaviors when loosing, appropriate behaviors during the game, fair play skills and social skills, during the physical education class. Results from this study revealed that participants improved their behaviors with the implementation of the intervention (appropriate behavior program), generating positive changes in students? attitudes and social skills during physical education class. In relation to children gender, girls had better scores than boys in relation to appropriate behaviors when losing. Further, when comparing students' age, those from 10 to 11 years old scored higher in fair play behaviors and social skills. In conclusion, the intervention program was effective to improve the behaviors of the school children, generating positive changes in their attitudes and social skills during physical education.Fil: Gil Madrona, Pedro. Universidad de Castilla-La Mancha; EspañaFil: Gutiérrez Marín, Eva Cristina. Universidad de Castilla-La Mancha; EspañaFil: Cupani, Marcos. Universidad Nacional de Córdoba. Instituto de Investigaciones Psicológicas. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Psicológicas; ArgentinaFil: Samalot Rivera, Amaury. State University of New York; Estados UnidosFil: Díaz Suárez, Arturo. Universidad de Murcia; EspañaFil: López Sánchez, Guillermo F.. Universidad de Murcia; Españ
Influence of the CoViD-19 Pandemic on Mental Workload and Burnout of Fashion Retailing Workers in Spain
This study analyzed the levels of mental workload and the presence of burnout on a sample of fashion retailing workers from Spain and its relationship with the current CoViD-19 (Coronavirus disease-19) pandemic. We established a cross-sectional design. Participants (n = 360) answered an online survey including questions about sociodemographic data, perception of CoViD-19, CarMen-Q questionnaire (workload), and MBI (burnout syndrome). The survey campaign took place in October and November 2020. The results showed that participants exhibited deep concern about the CoViD-19 pandemic and its influence in the workplace. Although the mental workload was near the middle point of the scale, participants showed moderate to high burnout levels, revealing that the sample was at risk of experiencing higher burnout levels over time as the pandemic and associated economic crisis continued. The multiple regression analysis results indicated that environmental changes, work overload, somatic symptoms, insomnia, negative job expectations, and uncertainty constituted significant mental workload predictors. Insomnia, somatic symptoms, and negative job expectations constituted significant predictors for burnout. Differences between job positions and genders in mental workload and burnout were found. In conclusion, the uncertainty at work derived from the CoViD-19 pandemic harms fashion retailing workers’ psychological well-being in Spain
- …