Search results for "Alpha"
showing 10 items of 3228 documents
The Role of the Skeletal Muscle Secretome in Mediating Endurance and Resistance Training Adaptations
2021
Exercise, in the form of endurance or resistance training, leads to specific molecular and cellular adaptions not only in skeletal muscles, but also in many other organs such as the brain, liver, fat or bone. In addition to direct effects of exercise on these organs, the production and release of a plethora of different signaling molecules from skeletal muscle are a centerpiece of systemic plasticity. Most studies have so far focused on the regulation and function of such myokines in acute exercise bouts. In contrast, the secretome of long-term training adaptation remains less well understood, and the contribution of non-myokine factors, including metabolites, enzymes, microRNAs or mitochon…
Dimensiones del Ecosistema Digital Universitario: Validación del Instrumento «University Digital Ecosystem» (UN-DIGECO) / Dimensions of the Universit…
2020
El presente estudio presenta el diseño y validación del instrumento UN-DIGECO (University Digital Ecosystem), orientado a conocer el Ecosistema Digital Universitario, identificando las dimensiones asociadas al uso que hacen los estudiantes de los medios sociales (MMSS) y/o aplicaciones digitales. La validación de contenido y comprensión se efectuó en tres fases: construcción, refinado y validación psicométrica, mediante el análisis factorial confirmatorio, apoyado en el constructo teórico inicial. Se diseñaron ítems –recabando información de instrumentos similares-, acordes a indicadores adscritos a seis dimensiones: aprendizaje, interacción social, creación de contenidos, consumo online, o…
La calidad percibida de los servicios deportivos: diferencias según instalación, género, edad y tipo de usuario en servicios náuticos. (The perceptio…
2008
En el ambito de la gestion deportiva, la calidad de losservicios deportivos y la satisfaccion de los usuarios es un area de gran desarrollo. Este trabajo pretende determinar el grado de calidad percibida en unos servicios deportivos de caracter publico como son unas escuelas de actividades nauticas. Para ello se analizaron 2375 usuarios de estas escuelas que contestaron un cuestionario sobre calidad de servicio percibida y satisfaccion con el servicio recibido. La escala de calidad percibida utilizada determino diez dimensiones de calidad: las clases, el tiempo libre, el entorno nautico, los horarios, la comida, el material nautico, la comida complementaria, la conserjeria, la limpieza y la…
Load-dependent alpha suppression is related to working memory capacity for numbers
2022
Alpha suppression is proposed to reflect a surge in cortical excitability to enhance stimulus processing in working memory. The attenuated state of alpha might reflect the prioritisation of behaviourally relevant information, making it a proxy for working memory functioning. Despite the growing interest in utilising the advancement of brain-based measures to evaluate individuals’ cognitive processes, there was a lack of consistent evidence on the relationship between alpha suppression and working memory performance. To investigate whether interindividual differences in alpha suppression might be related to variability in working memory capacity, we recorded participants’ electroencephalogra…
DEVELOPMENT OF A TEST FOR EVALUATING THE CONCEPTUAL KNOWLEDGE OF CHEMICAL EQUILIBRIUM CONSTANT AMONG UNIVERSITY STUDENTS AND ITS APPLICATION TO SPANI…
2014
This article outlines a procedure that was used to develop a written test for evaluating the conceptual knowledge of chemical equilibrium constant among university students. The concepts in the subject matter were carefully defined through propositional statements. Students' understanding of the topic was determined through interviews. These data were used to produce nine multiple choice questions. Each question was designed to identify misconceptions related to the chemical equilibrium constant. The test was evaluated by foure associate professors and was administred to a total of 196 spanish university students. This test has a Cronbach's alpha reliability of 0.63 and its content validity…
Interferon α interferes with immunological tolerance.
2013
The ability of regulatory T cells (Tregs) to promote immunological tolerance represents an important obstacle in cancer immunotherapy. We have recently discovered that the clinically established immunotherapeutic agent interferon α (IFNα) inactivates the suppressive functions of human Tregs. Here, we outline the mechanisms whereby IFNα mediates this important function and discuss its therapeutic implications for cancer immunotherapy.
Relationship of transforming growth factor-beta1 with tumor necrosis factor-alpha and endothelial activation in patients with stable renal transplant…
2008
Problema fonetyčnoji transkrypciji napivpomjakšenych pryholosych u pidručnykach z ukrajins'koji movy jak inozemnoji
2020
L'articolo ha come obiettivo l'elaborazione di una proposta di trascrizione fonetica delle consonanti semipalatalizzate in ucraino per mezzo dei simboli dell'Alfabeto fonetico internazionale, da usare nei manuali destinati agli studenti stranieri. Vengono prese in considerazione diverse problematiche, tra cui: la limitatezza dei mezzi grafici dell'alfabeto fonetico per esprimere alcune particolarità della correlazione palatale; la resa ortografica delle semi-palatalizzate in ucraino e la sua corrispondenza alla loro pronuncia comune; la tendenza di alcune consonanti palatalizzate all'indurimento e i diversi modi di pronunciare le semi-palatalizzate. Nel lavoro vengono analizzati i contribut…
Ultraviolet A1 radiation induces nitric oxide synthase-2 expression in human skin endothelial cells in the absence of proinflammatory cytokines.
2001
Skin exposure to ultraviolet radiation from sunlight causes erythema and edema formation as well as inflammatory responses. As some of these ultraviolet-induced effects are potentially mediated by nitric oxide synthases, we examined the role of cytokines and ultraviolet A 1 radiation (340–400 nm) on the expression of the nitric oxide synthase-2 in endothelia of normal human skin biopsies during short-term organ culture as well as expression and activity of the nitric oxide synthase-2 in in vitro cell cultures of human dermal endothelial cells. Both, cytokine challenge (interleukin-1β + tumor necrosis factor-α + interferon-γ) but also ultraviolet A 1 exposure (50 J per cm 2 ) in the absence …
Psychometric testing of the Norwegian version of the questionnaire Family Satisfaction in the Intensive Care Unit (FS-ICU-24)
2018
Bjørg Dale,1 Gro Frivold2 1Centre for Caring Research, Southern Norway, University of Agder, Faculty of Health and Sport Sciences, Grimstad, Norway; 2University of Agder, Faculty of Health and Sport Sciences, Grimstad, Norway Introduction: The questionnaire, Family Satisfaction in the Intensive Care Unit (FS-ICU-24), was developed to assess relatives’ satisfaction with care and involvement in decision-making processes when a close family member stays in the ICU Aim: This study was aimed at describing the translation and exploring the psychometric properties of the Norwegian version of the questionnaire. Methods: The study design was a cross-sectional survey. After trans…