Exercise addiction and satisfaction of fitness center users as precursors to the intention of continuing to engage in physical activity

Exercise addiction occurs when a person engages in excessive physical activity until they lose control. Among individuals attending fitness centers, the risk of developing exercise addiction has been estimated to be close to 10%. The objective of this study was to determine whether exercise addiction may be an antecedent of satisfaction with the service received and/or of the intention of continuing to partake in leisure-time physical activity at fitness centers in a direct or indirect manner. A total of 361 individuals (29.05 ± 11.40 years old) who were physically active at Spanish fitness centers were asked to respond to a questionnaire on exercise addiction, satisfaction with the sports service, and their intention to continue to engage in physical activity. A multi-group analysis was conducted to check for differences in relationships by sex. The results show the relationships between addiction, satisfaction, and intention to continue physical activity. The standardized values display differences between men and women, with women exhibiting the highest values for the relationships between addiction and the rest of the constructs. Satisfaction with the sports service is a mediator in the relationship between exercise addiction and intention to engage in leisure-time physical activity

Survival of foodborne pathogens in natural cracked olive brines

This work reports the survival (challenge tests) of foodborne pathogen species (Escherichia coli, Staphylococcus aureus, Listeria monocytogenes, and Salmonella enterica) in Aloreña de Málaga table olive brines. The inhibitions were fit using a log-linear model with tail implemented in GInaFIT excel software. The olive brine had a considerable inhibitory effect on the pathogens. The residual (final) populations (Fp) after 24 h was below detection limit (<1.30 log cfu/mL) for all species assayed. The maximum death rate (k) was 9.98, 51.37, 38.35 and 53.01 h, while the time for 4 log reductions (4D) was 0.96, 0.36, 0.36 and 0.24 h for E. coli, S. aureus, L. monocytogenes and S. enterica, respectively. Brine dilutions increased Fp and 4Dr, while decreased k. A cluster analysis showed that E. coli had an overall quite different behaviour being the most resistant species, but the others bacteria behaved similarly, especially S. aureus and S. enterica. Partial Least Squares regression showed that the most influential phenols on microbial survival were EDA (dialdehydic form of decarboxymethyl elenolic acid), HyEDA (EDA linked to hydroxytyrosol), hydroxytyrosol 4-glucoside, tyrosol, and oleoside 11-methyl ester. Results confirm the adverse habitats of table olives for foodborne pathogenic microorganisms.The research leading to these results has received funding from the Junta de Andalucía through PrediAlo Project (AGR7755: www.predialo.science.com.es) and FEDER European funds. Thanks to Copusan S.C.A (Alozaina, Málaga, Spain) for supplying the fruits and facilities for the development of experiments. FNAL wishes to thank the Spanish Government and CSIC for his Ramón y Cajal postdoctoral research contract, while VRG thanks the AgriFood Campus of International Excellence (ceiA3), Bank of Santander, Spanish Government and ‘Aloreña de Málaga’ Olive Manufacturing Association, for her pre-doctoral fellowship (training program of Ph.D. in companies). Authors also express their gratitude to F. Rodríguez-Gómez, M. Brenes, and C. Romero from Instituto de la Grasa (CSIC, Seville) for their invaluable help during HPLC analyses.Peer Reviewe

Serum proteomics of active tuberculosis patients and contacts reveals unique processes activated during Mycobacterium tuberculosis infection.

Tuberculosis (TB) is the most lethal infection among infectious diseases. The specific aim of this study was to establish panels of serum protein biomarkers representative of active TB patients and their household contacts who were either infected (LTBI) or uninfected (EMI-TB Discovery Cohort, Pontevedra Region, Spain). A TMT (Tamdem mass tags) 10plex-based quantitative proteomics study was performed in quintuplicate containing a total of 15 individual serum samples per group. Peptides were analyzed in an LC-Orbitrap Elite platform, and raw data were processed using Proteome Discoverer 2.1. A total of 418 proteins were quantified. The specific protein signature of active TB patients was characterized by an accumulation of proteins related to complement activation, inflammation and modulation of immune response and also by a decrease of a small subset of proteins, including apolipoprotein A and serotransferrin, indicating the importance of lipid transport and iron assimilation in the progression of the disease. This signature was verified by the targeted measurement of selected candidates in a second cohort (EMI-TB Verification Cohort, Maputo Region, Mozambique) by ELISA and nephelometry techniques. These findings will aid our understanding of the complex metabolic processes associated with TB progression from LTBI to active disease

Implantación de criterios sostenibles en los pliegos de contratación de obras públicas de infraestructura

El promotor de una obra es el que tiene la capacidad real de establecer los criterios y exigencias que la empresa contratada debe incorporar en su ejecución; y cuando se trata de un promotor público, éste debe asumir la responsabilidad de introducir objetivos que fomenten una construcción sostenible y promuevan hábitos adecuados de trabajo entre todos los agentes implicados en el proyecto, ejecución y gestión de las obras. La incorporación de criterios sostenibles en los Pliegos de Prescripciones Técnicas permitirá la adjudicación, contratación y ejecución de las obras de infraestructura garantizando una atención preferente a su integración eficaz en el entorno medioambiental correspondiente, de forma compatible con los recursos naturales y con la biodiversidad de la zona. Sin embargo, en este contexto, no sólo se deben considerar los impactos de carácter medioambiental generados, sino también los de carácter económico y social. Estos aspectos se han de tener en cuenta en todas las fases del ciclo de vida de la infraestructura, desde las más previas del proyecto hasta las de explotación de la obra terminada y a las previsibles de demolición o desmontaje al final de su vida útil; por este motivo, en las propuestas desarrolladas en el presente trabajo se han introducido una serie de condicionantes que han de servir a los concurrentes para definir un proyecto más sostenible y para aplicar de manera coherente las soluciones que se consideren necesarias, una vez que se hayan analizado (mediante el Estudio de Impacto Ambiental y otros estudios paralelos) los conflictos medioambientales que puedan derivarse de la ejecución de la obra. Se favorece, de esta forma, un desarrollo solidario con el medio, al tiempo que se intenta crear un vínculo entre todos los estamentos y grupos sociales, en la idea de que cada uno asuma su responsabilidad al respect

Design and psychometric evaluation of the 'Clinical Communication Self-Efficacy Toolkit'

Nursing students experience difficulties when communicating in clinical practice. Their self-efficacy in clinical communication should be explored as part of their competence assessment before they are exposed to real human interactions in the clinical setting. The aim of this study was to design and psychometrically evaluate a toolkit to comprehensively assess nursing students’ self-efficacy in clinical communication. The study followed an observational cross-sectional design. A sample of 365 nursing students participated in the study. The ‘Clinical Communication Self-Efficacy Toolkit’ (CC-SET) was comprised of three tools: the ‘Patient-Centered Communication Self-efficacy Scale’ (PCC-SES), the ‘Patient clinical Information Exchange and interprofessional communication Self-Efficacy Scale’ (PIE-SES), and the ‘Intrapersonal communication and Self-Reflection Self-Efficacy Scale’ (ISR-SES). The tools’ reliability, validity (content, criterion, and construct) and usability were rigorously tested. The Cronbach’s alpha coefficient of the three tools comprising the CC-SET was very high and demonstrated their excellent reliability (PCC-SES = 0.93; PIE-SES = 0.87; ISR-SES = 0.86). The three tools evidenced to have excellent content validity (scales’ content validity index > 0.95) and very good criterion validity. Construct validity analysis demonstrated that the PCC-SES, PIE-SES, and ISR-SES have a clear and theoretically-congruent structure. The CC-SET is a comprehensive toolkit that allows the assessment of nursing students’ self-efficacy in interpersonal, interprofessional, and intrapersonal communication

On Some Sampling-Related Frames in U-Invariant Spaces

This paper is concerned with the characterization as frames of some sequences in -invariant spaces of a separable Hilbert space H where U denotes an unitary operator defined on H ; besides, the dual frames having the same form are also found. This general setting includes, in particular, shift-invariant or modulation-invariant subspaces in L2(R) , where these frames are intimately related to the generalized sampling problem. We also deal with some related perturbation problems. In doing so, we need the unitary operator to belong to a continuous group of unitary operators

Problema de planeamento do projeto para biblioteca de desenvolvimento de software - PSPSWDLIB

Um Problema de Gestão de Projetos de Desenvolvimento de Software é uma variante do Problemas Gestão de Projetos onde o modelo de desenvolvimento de software pode ser apresentado como um conjunto de actividades de software a realizar, um conjunto de recursos humanos, um conjunto de recursos financeiros e o variável tempo dividida por actividade. Este artigo apresenta um exemplo do Problema de Gestão de Projetos de Desenvolvimento de Software para projectos de desenvolvimento de software.A Project Scheduling Problem for Software Development is a variant of Project Scheduling Problem where the software development model can be presented as a set of software activities, a set of developer skills and a set of resources specified on money and the total time divided on time per activity. This paper presents an instance set of Project Scheduling Problem for Software Development for projects of software development

Patrón de Seguridad para el Derecho al Olvido en Ecosistemas Big Data

Los ecosistemas Big Data son cada vez más usados por compañías de cualquier ámbito. Big Data permite la obtención de información valiosa a partir del análisis de grandes cantitades de datos. Normalmente, este tipo de entornos suele tener una alta complejidad lo que hace que sean difíciles de gestionar. Además, en los últimos años han surgido diferentes legislaciones que tratan de controlar el uso y análisis de los datos, lo cual, puede afectar de forma directa a este tipo de ecosistemas. Una de la normativas que más debate está generando es el derecho al olvido, gracias a la cual, se intenta que los usuarios tengan un mayor control sobre dónde se encuentran sus datos y cómo se utilizan. Por ello, sin una correcta adaptación de los entornos Big Data a las nuevas normativas, las empresas pueden no solo recibir graves sanciones económicas sino que les puede ocasionar una pérdida de reputación entre sus clientes. En este artículo proponemos un patrón de seguridad específico para ayudar a los administradores de Big Data a implementr el derecho al olvido en sus ecosistemas Big Data definiendo diferentes escenarios y los elementos que lo conforman