Reverse osmosis membrane composition, structure and performance modification by bisulphite, iron(III), bromide and chlorite exposure

Reverse osmosis (RO) membrane exposure to bisulphite, chlorite, bromide and iron(III) was assessed in terms of membrane composition, structure and performance. Membrane composition was determined by Rutherford backscattering spectrometry (RBS) and membrane performance was assessed by water and chloride permeation, using a modified version of the solution-diffusion model. Iron(III) dosage in presence of bisulphite led to an autooxidation of the latter, probably generating free radicals which damaged the membrane. It comprised a significant raise in chloride passage (chloride permeation coefficient increased 5.3–5.1 fold compared to the virgin membrane under the conditions studied) rapidly. No major differences in terms of water permeability and membrane composition were observed. Nevertheless, an increase in the size of the network pores, and a raise in the fraction of aggregate pores of the polyamide (PA) layer were identified, but no amide bond cleavage was observed. These structural changes were therefore, in accordance with the transport properties observed.Peer ReviewedPostprint (author's final draft

Las gentes de Levante y su relación con la pesca en el puerto de Santa María a mediados del siglo XX

Págs. 363-37

Effect of the mood produced by virtual reality exposure on body image disturbances

Previous research suggests that negative mood increases body image disturbances. The aim of this study was to examine whether the mood produced by virtual reality exposure had any influence on such disturbances. As expected, dysphoric mood increased body image disturbances in patients with eating disorders

The use of virtual reality in the treatment of eating disorders

A high percentage of patients with eating disorders (ED) respond to treatments such as cognitive-behavioural therapy. However, some patients do not progress significantly with these treatments, or suffer relapses. The incorporation of new technologies may help to increase the efficacy of standard treatments. Virtual reality has been successfully used to treat body image disturbances in ED patients and seems a suitable technology for cue exposure therapy in this setting. We review the published literature and discuss the results

Virtual reality exposure in patients with eating disorders: influence of symptom severity and presence

The aim of this study was to examine the influence of several modulating variables on subjective discomfort experienced by patients with eating disorders while exposed to virtual environments that were emotionally significant for them. Severity of symptoms and sense of presence were analyzed. Both variables influenced the level of subjective discomfort during the exposure to virtual environments

Chistes y agudeses del astut i rústic Bertoldo

Copia digital. Valladolid : Junta de Castilla y León. Consejería de Cultura y Turismo, 2009-201

The use of virtual reality in the study, assessment, and treatment of body image in eating disorders and nonclinical samples: A review of the literature

This article reviews research into the use of virtual reality in the study, assessment, and treatment of body image disturbances in eating disorders and nonclinical samples. During the last decade, virtual reality has emerged as a technology that is especially suitable not only for the assessment of body image disturbances but also for its treatment. Indeed, several virtual environment-based software systems have been developed for this purpose. Furthermore, virtual reality seems to be a good alternative to guided imagery and in vivo exposure, and is therefore very useful for studies that require exposure to life-like situations but which are difficult to conduct in the real world. Nevertheless, review highlights the lack of published controlled studies and the presence of methodological drawbacks that should be considered in future studies. This article also discusses the implications of the results obtained and proposes directions for future research

Granada y la emigración a Indias en el siglo XVI

Tomo I ; págs. 161-19

Granada y la guerra de Cuba a través de "El Defensor de Granada" (1895-1898)

Tomo I ; págs. 479-50