Improvement of motivation and social goals after the realization of a didactic unit of climbing

Monográfico con el título: "Actividades Físicas en el Medio Natural (2ª parte)"Resumen basado en el de la publicaciónTítulo, resumen y palabras clave también en inglésSe intentó observar si se producían cambios significativos en la satisfacción, metas sociales y motivación en las clases de Educación Física, tras utilizar una unidad didáctica de escalada. En este sentido, se aplicó un diseño cuasi experimental con medidas pre post y con carácter descriptivo que estuvo basado en una muestra de 66 participantes (34 chicas y 32 chicos) de un centro de Educación Primaria de la provincia de Granada, con edades entre 10 y 13 años (M =11; DT = .84). Como instrumentos se han utilizado las escalas Sport Motivation Scale (SMS), la Escala de Metas Sociales en Educación Física (EMSEF) y la Escala de Satisfacción en Educación Física (SSI). Se realizó un análisis de consistencia interna, la prueba t para muestras relacionadas y el análisis de la varianza (ANOVA). Los resultados mostraron que una vez realizada la unidad didáctica, los factores han tenido un cambio significativo y positivo.ES

Sincell: an R/Bioconductor package for statistical assessment of cell-state hierarchies from single-cell RNA-seq

Summary: Cell differentiation processes are achieved through a continuum of hierarchical intermediate cell states that might be captured by single-cell RNA seq. Existing computational approaches for the assessment of cell-state hierarchies from single-cell data can be formalized under a general framework composed of (i) a metric to assess cell-to-cell similarities (with or without a dimensionality reduction step) and (ii) a graph-building algorithm (optionally making use of a cell clustering step). The Sincell R package implements a methodological toolbox allowing flexible workflows under such a framework. Furthermore, Sincell contributes new algorithms to provide cell-state hierarchies with statistical support while accounting for stochastic factors in single-cell RNA seq. Graphical representations and functional association tests are provided to interpret hierarchies. The functionalities of Sincell are illustrated in a real case study, which demonstrates its ability to discriminate noisy from stable cell-state hierarchies. Availability and implementation: Sincell is an open-source R/Bioconductor package available at http://bioconductor.org/packages/sincell. A detailed manual and a vignette are provided with the package. Contact: [email protected] Supplementary information: Supplementary data are available at Bioinformatics onlin

Tunneling vortex dynamics in linearly coupled Bose-Hybbard rings

The quantum dynamics of population-balanced fractional vortices and population-imbalanced vortices in an effective two-state bosonic system, made of two coupled discrete circuits with few sites, is addressed within the Bose-Hubbard model. We show that, for low on-site interaction, the tunneling of quantized vortices between the rings performs a coherent, oscillating dynamics connecting current states with chiral symmetry. The vortex-flux transfer dually follows the usual sinusoidal particle current of the Josephson effect, in good agreement with a mean-field approximation. Within such a regime, the switch of persistent currents in the rings resembles flux-qubit features and is feasible for experimental realization. On the contrary, strong interatomic interactions suppress the chiral current and lead the system into fragmented condensation

Innovative Techniques for Landscape Recovery after Clay Mining under Mediterranean Conditions

Open-pit mining results in profound modifications at different environmental scales that may persist for very long time periods, or even indefinitely. Considerable research efforts in mine reclamation strategies have been made, although reclamation failures are still common. In dry climates, such as in the Mediterranean Basin, successful actions may depend on features related to proper species selection and restoration techniques, which may substantially contribute to provide substrate stability and facilitate the regeneration of the main ecological processes. In this context, we developed the TECMINE case-study aimed to evaluate the feasibility and suitability of innovative restoration practices applied to clay-mine reclamation under Mediterranean conditions. The restoration strategy was designed at the landscape level with two main approaches: the recovery of natural geomorphology shapes and ecological restoration, including vegetation recovery and soil quality, based on proper reference ecosystems. After the geomorphological land remodeling, a combination of several innovative restoration techniques was implemented to reclaim plant communities and ecosystem functioning. These techniques involved: (i) accurate species selection according to microhabitat characteristics; (ii) high-quality plant production; (iii) surface remodeling to improve substrate stabilization; and (iv) implementing rainfall collection to enhance resources availability, soil fertility improvement and the amelioration of abiotic conditions for seedlings. Finally, we developed a monitoring program to assess the success of the implemented restoration techniques over time. The application of these innovative techniques has reported interesting results and represents a step forward in the improvement of mine restoration under Mediterranean climate.The study was funded by the LIFE TECMINE Project (LIFE16 ENV/ES/000159) from the European Programme for the Environment and Climate Action (2014–2020)*. L.M. was supported by the Spanish MICINN (PTA2019-018094). The CEAM foundation is funded by the Generalitat Valenciana

Relationships between parent–infant bonding, dyadic adjustment and quality of life, in an intra-partner sample

The transition to parenthood represents a moment of change and adaptation in which the dyadic marital relationship becomes a triadic relationship. Facilitating a positive transition requires a thorough understanding of the explanatory model of the relationship between parental–infant bonding, dyadic adjustment and quality of life (QoL) from an integrative perspective of the family unit. The aim of this work was to analyse the relationships between parent–infant bonding, dyadic adjustment and QoL from an intra-partner perspective, 6–12 months after the birth of a child. A cross-sectional observational study was performed in a convenience sample of 222 couples 6–12 months postpartum, enrolled from October 2013 to March 2016. The mean age of the mothers was 34.07 years (SD = 3.67), and for the fathers, it was 35.75 years (SD = 4.02). Mothers perceived better QoL and greater mother–infant bonding compared to fathers. The perception of an adequate dyadic adjustment, together with positive parent–infant bonding, had positively influenced the individual QoL of both members of the couple 6–12 months after birth. From an intra-partner perspective, the positive transition was influenced by the relationship between parent–infant bonding, dyadic adjustment and QoL. Positive parent–infant bonding in mothers and fathers, as well as promotion of the quality of the relationships between couples, can help promote a better QoL. Positive health results can be achieved in terms of individual and family well-being by designing healthcare interventions that encourage the presence and participation of the family unit.The present study was granted by the General Sub-Directorate for Evaluation and Promotion of Research (Institute of Health Carlos III, ISCIII) and co-funded by the European Regional Development Fund (FEDER) (No. PI14/01549)

El proceso de secado por atomización: formación de gránulos y cinética de secado de gotas

Spray drying is a unit operation very common in many industrial processes. For each particular application, the resulting granulated material must possess determined properties that depend on the conditions in which the spray drying processing has been carried out, and whose dependence must be known in order to optimize the quality of the material obtained. The large number of variables that influence on the processes of matter and energy transfer and on the formation of granular material has required a detailed analysis of the drying process. Over the years there have been many studies on the spray drying processing of all kind of materials and the influence of process variables on the drying kinetics of the granulated material properties obtained. This article lists the most important works published for both the spray drying processing and the drying of individual droplets, as well as studies aimed at modeling the drying kinetics of drops.El proceso de secado por atomización es una operación unitaria que interviene en numerosas aplicaciones industriales. Para cada aplicación en concreto, el material granulado resultante debe poseer unas propiedades determinadas que dependen de las condiciones en las que se lleve a cabo el secado por atomización, y cuya dependencia debe conocerse para así optimizar la calidad del material obtenido. El gran número de variables que influyen en los procesos de transferencia de materia y energía que tienen lugar, y en la formación del material granulado, han hecho necesario el análisis en detalle del proceso de secado. A lo largo de los años han sido muchos los estudios realizados sobre el secado por atomización y la influencia de las variables del proceso en la cinética de secado y las propiedades del material granulado obtenido, para todo tipo de materiales. En este artículo se recogen los trabajos más importantes publicados correspondientes tanto al secado por atomización como al secado de gotas individuales, así como los estudios cuyo objetivo es el modelado de la cinética de secado de gotas

Characterization of silica–water nanofluids dispersed with an ultrasound probe: A study of their physical properties and stability

The stability and agglomeration state of nanofluids are key parameters for their use in different applications. Silica nanofluids were prepared by dispersing the nanoparticles in distilled water using an ultrasonic probe, which has proved to be the most effective system and gives the best results when compared with previous works. Results were obtained concerning the influence of the solid content, pH and salt concentration on the zeta potential, electrical double layer, viscosity, elastic and viscous moduli, particle size and light backscattering. Measurement of all these properties provides information about the colloidal state of nanofluids. The most important variable is the solid content. Despite the agglomeration due to high concentration, nanofluids with low viscosity and behaving like liquid were prepared at 20% of mass load thanks to the good dispersion achieved with the ultrasonic treatment. The pH of the medium can be used to control the stability, since the nanofluids are more stable under basic conditions far from the isoelectric point (IEP) and settle at pH = 2. Therefore, stable nanofluids for at least 48 h, with high solid content, can be prepared at high pH value (pH > 7) due to the electrostatic repulsion between particles

Microstructure and mechanical properties of grains of silica nanofluids dried in an acoustic levitator

The microstructure and mechanical properties of spray-dried grains are key factors in many applications. In this work single droplets of silica nanofluids were dried in an acoustic levitator under different experimental conditions of solid mass fraction, pH value, salt concentration, drying temperature and initial droplet volume. ANOVA method was used to determine their influence on the final grain diameter, the shell thickness and the mechanical strength. The solid content and the droplet volume are the variables that exert an influence on these three properties. In addition, the mechanical strength is influenced by the pH value. The maximum packing fraction of the particles inside the shell was obtained by modeling the viscosity data with the Quemada equation. The packing fraction was then used to calculate the shell thickness. The internal microstructure of the grains was observed by SEM and the shell thickness was measured. Experimental and calculated results show good agreemen

El laboratorio de inmunología en el diagnóstico y control de las enfermedades autoinmunitarias sistémicas (I): protocolo de estudio ante la sospecha clínica

Inclou referències bibliogràfique

Knowledge of disease and access to a specialist reported by Spanish patients with ulcerative colitis. UC-LIFE survey

Education of patients with ulcerative colitis (UC) about their disease and access to a specialist are important to improve health outcomes. Our objective was to determine, by collecting information directly from the patients, their information sources and knowledge of the disease, and the options for access to the gastroenterologist. The information was collected using a printed survey handed out by 39 gastroenterologists to 15 consecutive adult patients with UC. Patients answered anonymously from their home. The responses were stratified by hospital size (> 900; 500-900; < 500 beds). A total of 585 patients received the survey and 436 responded (74.5%; mean age of 46 years [13.5], 53% men). The main information source was the specialist physician (89.2%). Between 32% and 80% of patients had areas of improvement regarding knowledge of their disease. Knowledge of the disease was better in patients from small hospitals (< 500 beds). The frequency of routine visits was also higher in small hospitals. In case of a flare-up, 60% stated they were able to contact their doctor by phone and 37%, that they could get an appointment on the same day. The percentage stating that they had to ask for an appointment and wait until their physician was available was lower in small hospitals. There are areas of improvement with regard to knowledge of their disease in patients with UC followed in hospital clinics. Patients followed in small hospitals seem to know their disease better, are followed more frequently in the clinic, and have better access in case of a flare-up.Antecedentes y propósito: la educación de los pacientes con colitis ulcerosa (CU) sobre su enfermedad y el acceso al especialista es importante para mejorar los resultados en salud. Nuestro objetivo fue conocer, recogiendo información directamente de los pacientes, sus fuentes de información y su conocimiento de la enfermedad, y las posibilidades de acceso al especialista en gastroenterología. Métodos: la información fue recogida mediante encuesta impresa, entregada por 39 gastroenterólogos a 15 pacientes adultos consecutivos con CU. Los pacientes contestaron de forma anónima desde su domicilio. Las respuestas se estratificaron según el tamaño del hospital (> 900; 500-900; < 500 camas). Resultados: quinientos ochenta y cinco pacientes recibieron la encuesta y 436 contestaron (74,5%; edad media 46 años (13,5), 53% hombres). La principal fuente de información fue su médico especialista (89,2%). Entre un 32% y un 80% presentaron áreas de mejora en el conocimiento de su enfermedad. El conocimiento de la enfermedad fue mejor en pacientes de hospitales pequeños (< 500 camas). La frecuencia de revisiones rutinarias fue mayor también en hospitales pequeños. Ante empeoramiento, el 60% declaró poder contactar por teléfono con su médico y el 37%, conseguir cita el mismo día. El porcentaje que declaró tener que pedir cita y esperar disponibilidad fue menor en hospitales pequeños. Conclusiones: en pacientes con CU seguidos en consultas hospitalarias, existen áreas de mejora en el conocimiento de su enfermedad. Los pacientes seguidos en hospitales pequeños parecen conocer mejor su enfermedad, son seguidos con más frecuencia en la consulta y tienen mejor acceso en caso de empeoramiento.Merck Sharp & Dohme de Españ