3,254 research outputs found
La influencia de la edad y el género sobre los determinantes de la adopción del smartphone para la planificación de viajes
Vallespín, M., Molinillo, S. & Pérez-Aranda, J. (2016).La influencia de la edad y el género sobre los determinantes de la asopción del smartphone para la planificación de viajes. In Correia, M., Santos, J.A.C., Santos, M., Aguas, P. & Baptista (Eds.), Tourism & Management Studies International Conference TMS Algarve (p. 176), Portugal.Objetivo: Esta investigación analiza el comportamiento del turista ante la llegada de un nuevo canal de comercialización como es el canal móvil. Para ello, y con el objetivo de guiar a las empresas del sector en sus estrategias de segmentación, se analiza por separado, el comportamiento de los diferentes segmentos.
Metodología: Mediante análisis ANOVA, sobre una muestra de 624 consumidores turísticos españoles, se estudia la influencia de la edad y el género para la planificación de viajes a través del canal móvil. En concreto, las variables dependientes consideradas son: la facilidad de uso, la utilidad percibida y el hábito que perciben hacia el canal móvil, su futura intención de uso, el apoyo que perciben de su círculo más cercano y los hábitos arraigados a otros canales como son el canal online y el canal offline.
Principales resultados: Se encuentra que la variable edad genera diferentes comportamientos en casi todas las variables analizadas. De este modo, son los turistas menores de 45 años los que parecen presentar un mayor potencial ya que presentan un mayor hábito hacia el canal online y hacia el canal móvil en detrimento de los canales offline. Además, este segmento (menores de 45 años) también encuentran esta canal más fácil de usar. En cambio, el género parece no generar apenas diferencias, tan solo los hombres parecen presentar un mayor arraigo hacia las agencias de viajes. Podría concluirse, por tanto, que las diferencias de género encontradas antaño sobre el uso de las tecnologías parecen estar desapareciendo.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
Development of gambling disorder after bariatric surgery: a call for research
The relationship between bariatric surgery and alcohol use disorder (AUD) suggests that there may be a parallel connection between bariatric surgery and gambling disorder (GD), although this has never been researched before. Here, we describe observations suggesting that patients undergoing bariatric surgery may develop gambling disorders after surgery. Obese, older adults, and women may be at particular risk of developing GD because of their higher susceptibility to somatic comorbidities. We call for research addressing factors affecting the development of GD in patients undergoing bariatric surgery and how this could be prevented
Development of gambling disorder after bariatric surgery: a call for research
The relationship between bariatric surgery and alcohol use disorder (AUD) suggests that there may be a parallel connection between bariatric surgery and gambling disorder (GD), although this has never been researched before. Here, we describe observations suggesting that patients undergoing bariatric surgery may develop gambling disorders after surgery. Obese, older adults, and women may be at particular risk of developing GD because of their higher susceptibility to somatic comorbidities. We call for research addressing factors affecting the development of GD in patients undergoing bariatric surgery and how this could be prevented
Biofeedback Interventions for Impulsivity-related Processes in Addictive Disorders
Purpose of Review Biofeedback is a promising technique that has been used as a treatment tool for different psychological disorders. In this regard, central (neurofeedback) and peripheral psychophysiological signals are presented as comprehensible stimuli with the aim of training specific processes. This review summarizes recent evidence about its use for the treatment of impulsivity-related processes in addictive disorders. Recent Findings Neurofeedback (NFB) protocols, based on electroencephalography (EEG) and functional magnetic resonance imaging (fMRI), have focused on substance use disorders. Biofeedback protocols using peripheral measures have been mainly based on heart rate variability and focused on behavioral addictions. EEG-NFB reported good results in the reduction of hyperarousal, impulsivity and risk taking in alcohol use disorder, and decreased rates of smoking and less craving in nicotine addiction. In fMRI-NFB, effective NFB performance has been related with better clinical outcomes in substance use disorders; however, its implication for treatment is still unclear. Heart rate variability biofeedback results are scarce, but some interventions have been recently designed aimed at treating behavioral addictions. Summary In addictive disorders, biofeedback interventions for impulsivity-related processes have shown promising results, although the literature is still scarce. Further research should aim at proving the effectiveness of biofeedback protocols as a treatment option for impulsivity in addictive disorders
Diferencia fractal en superficies de tierra vertida con suelo de Tamaulipas
La tierra vertida es una técnica constructiva sustentable y económicamente viable para desarrollarse en Tamaulipas, por la disponibilidad de materiales y procedimientos de fabricación similares a los tradicionales. Son diversas las variables que deben estudiarse en estos elementos para conocer sus propiedades, entre las que se encuentran la rugosidad y la porosidad, las cuales son importantes debido a su estrecha relación con la resistencia mecánica y durabilidad del material estudiado. El presente trabajo tuvo por objetivo caracterizar superficies sólidas a partir de la dimensión fractal para conocer su uniformidad y porosidad, comparándola con una superficie de concreto. Los sólidos fueron obtenidos a partir de tierra vertida conformada de dos combinaciones de suelos estabilizadas con cemento provenientes del estado de Tamaulipas. Se encontró que una superficie de tierra vertida es menos irregular que una superficie de concreto además de tener una menor porosidad reflejada en una menor dimensión fractal; los resultados sugieren que esto es debido a la presencia de arcilla en las mezclas de tierra vertida. Poured earth is a sustainable construction and economically feasible technique to develop in Tamaulipas, by the materials availability and traditional manufacturing procedures uses. There are several variables to be considered in these elements for their properties, among them it can be found roughness and porosity analysis which are important because they are related to material mechanical resistance and durability. This study aimed to characterize solid surfaces using fractal dimension to know its uniformity and porosity, compared with a concrete surface. Solids were obtained from poured earth of two combinations of soils stabilized with cement from the state of Tamaulipas. We found that a surface of a sample, obtained with ground, is more uniform than poured concrete surface, and that fractal dimension is higher while porosity increases; results suggest that this is because of the presence of clay in the poured earth mixtures
Diseño de muros mololítico para un prototipo de vivienda sustentable
Actualmente, la tierra vertida se propone como una alternativa potencial para la construcción de viviendas en ciertas regiones del estado de Tamaulipas, México. El objetivo del presente trabajo es proponer el porcentaje de cemento CPO 20 requerido para obtener la resistencia a la compresión de la tierra vertida para ser empleado como muro de carga. Se realizaron mezclas de dos suelos de la ciudad de Tampico, Tamaulipas y se estabilizaron con cemento a diversas proporciones. Los suelos fueron caracterizados y a las mezclas se determinó su resistencia a la compresión; posteriormente se calculó el espesor que debería tener el muro para soportar una losa cuyo sistema constructivo es bambucreto, apoyada en 2 sentidos. Se encontró que es aceptable adicionar 6% de cemento para un muro de 25cm de espesor cuya capacidad de carga es 17,787 kg para soportar una losa propuesta de bambucreto
The values of intrapleural pressure before the removal of chest tube in non-complicated pulmonary lobectomies
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Non-suicidal Self-Injury in Eating Disordered Patients: Associations with Heart Rate Variability and State-Trait Anxiety
Background: Non-suicidal self-injury (NSSI) is commonly present in individuals with eating disorders (EDs) and is often employed as a maladaptive emotion regulation strategy to avoid or abate negative emotions. One of the most prevalent negative emotions experienced by self-injurers is anxiety; however, this emotion has not been extensively studied in this population. Thus, the aim of our study was to investigate the influence of anxiety on NSSI in patients with ED from two different dimensions: state anxiety and trait anxiety.Methods: The study comprised a total of 66 females: 12 ED patients with NSSI, 32 ED patients without a history of NSSI, and 22 healthy controls. State and trait anxiety were assessed by means of State-Trait Anxiety Inventory (STAI-S-T) and physiological data [i.e., heart rate variability (HRV)] were collected.Results: STAI-trait scores were significantly higher in ED patients with NSSI than ED patients without NSSI. Furthermore, when conducting logistic regression analyses higher STAI-trait scores were associated with NSSI in ED patients. However, no differences in STAI-state scores and HRV were found between ED patients with and without NSSI.Discussion: The present findings suggest that anxiety as a trait is associated with the use of maladaptive strategies (i.e., NSSI) in ED patients. These results uphold the need to target trait anxiety in ED treatment in order to prevent possible NSSI behaviors
Phase-type distributions for studying variability in resistve memories
A new statistical approach has been developed to analyze Resistive Random Access Memory (RRAM) variability. The stochastic nature of the physical processes behind the operation of resistive memories makes variability one of the key issues to solve from the industrial viewpoint of these new devices. The statistical features of variability have been usually studied making use of Weibull distribution. However, this probability distribution does not work correctly for some resistive memories, in particular for those based on the Ni/HfO2/Si structure thar has been employed in this work. A completely new approach based on phase-type modelling is proposed in this paper to characterize the randomness of resistive memories operation. An in-depth comparision with experimental results shows that the fitted phase-type distribution works better than the Weibull distribution and also helps to understand the physics of the resistive memories.Spanish Ministry of Economy and Competitiveness (FEDER program) TEC2017-84321-C4-3-R MTM2017-88708-PIMB-CNM (CSIC) (Barcelona
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