Toward a division of metropolitan labour: An empirical analysis of the metropolitan area of Barcelona

The economic globalization, firm?s internationalization and the territorial decentralization of the productive process to increase competitivity via prices is producing not only a new process of international labor division between developed countries that overcome the previous divisions between North and South if not also a division of employment inside big metropolitan areas in developed countries. A divisor process of employment that we can call ?metropolitan division of labor?. This metropolitan regions, old nucleus of regional development it transforms in a complex model which interrelations are necessary analyze to develop, from the public territorial institutions, the adequate strategies. The aim of this paper is analyze the model of metropolitan division of labor in the Metropolitan Area of Barcelona.

Antonio Giraldez: At the tip of the microRNA iceberg

Using zebrafish, Giraldez studies how microRNAs guide the body's development

Peterson, Cathy Oral History Interview

Professor of Physical Therapy and Department Chair (2002-2021). Topics include: History of Physical Therapy Department; Transition of University administration; Faculty governance; International service.https://scholarlycommons.pacific.edu/esohc/1159/thumbnail.jp

Fuentes estadísticas y producción pesquera en España (1880-1936): una primera aproximación

Este trabajo trata de llamar la atención sobre un sector prácticamente ignorado por la historiografía económica española, pese a la importancia que ha tenido y tiene la pesca marítima, y no sólo para determinadas regiones litorales. A grandes rasgos, se pueden distinguir dos grandes apartados: en el primero, tratamos sobre la estadística pesquera y los problemas de utilización, fundamentalmente con el fin de ver las posibilidades de reconstruir una serie de producción; en el segundo, se compara el crecimiento de la producción pesquera con el de otros sectores económicos, intentando evaluar su importancia y enmarcándolo en el conjunto de la pesca europea. Por último, averiguar en qué se ha asentado dicho crecimiento: si éste ha sido meramente extensivo o si, por el contrario, tuvo lugar un proceso de transformaciones técnicas que se plasmaron en un aumento de la productividad.This work tries to call the attention over a sector practically ignored by Spanish economical history in spite of the importance that sea-fishing has had, and still has, not only to certain coastal regions. Broadly speaking two parts can be distinguished: in the first one we deal with físhing statistics and its usage problems, mainly with the aim of seeing the possibilities to rebuild a series of production. In the second one, the growth of the fishing production and other economical sectors is compared trying to evaluate its importance and framing the fishing in Europe as a whole. Finally, we try to find out what's the growth based on: if this has been merely extensive or, on the other hand, there was a process of technical transformations wich took shape in an increase of productivity.Publicad

Effect of Relative Humidity in High Temperature Oxidation of Ceria Nanoparticles Coating on 316L Austenitic Stainless Steel

A solution of 20 wt. % colloidal dispersion of Cerium Oxide (CeO2) in 2.5% of acetic acid, was used for depositing a coating film on an austenitic stainless steel 316L. Cerium compounds have been distinguished as potential corrosion inhibitors in coatings over several alloys. The oxidation behavior of the cerium oxide coating on 316L austenitic stainless steel alloy was evaluated in dry and humid environments, the weight changes (W/A) was monitored as a function of time using a custom built Thermogravimetrical Analysis (TGA) instrument at temperatures of 750C, 800C and 850C, and different relative humidity levels (0%, 10% and 20%) respectively. The parabolic oxidation rate and activation energy is calculated experimentally for each relative humidity level. A measurement of the effective diameter size of the ceria nanoparticles was performed using a Light Scattering technique. A characterization of the film morphology and thickness before the oxidation was executed using Atomic Force Microscopy (AFM) Microstructure and chemical composition of the oxidized coated substrates were analyzed using Scanning Electronic Microscopy (SEM) with energy dispersive spectroscopy (EDS). X-Ray Diffractometer (XRD) was used to characterize oxides formed in the surface upon isothermal treatment. A comparison of activation energy values obtained to identify the influence of relative humidity in the oxidation process at high temperature was conducted. Cerium oxides coating may prevent crevice corrosion and increase pitting resistance of 316L relative to the uncoated substrate at high temperatures and different levels of relative humidity acting as a protective oxidation barrier. The calculated parabolic rate constants, kp, at the experimental temperatures tend to increase as a function of humidity levels. The activation energy tends to increase proportionally to higher level of humidity exposures. At 0% relative humidity a value of 319.29 KJ/mol of activation energy is being obtained and at 20% is 366.10 KJ/mol. For the 10% an approximate value of 343.00 KJ/mol has been estimated based on the projection of the kp values at 750C and 800C. The presence of the CeO2 coating film, reduced the oxidation kinetics and provided good cyclic oxidation resistance at increments of relative humidity

Can the Doman method improve motor competence in children of 4 years of age? A quasi-experimental study of two Physical Education programmes in preschool education

Early childhood is a key stage for promoting Physical Education as a means for improving motor competence in children. With this in mind, is there a particular psychomotor stimulation method that can improve said competence? The aim of this study was to analyse and compare the effects on motor competence of two Physical Education and psychomotor stimulation programmes in 4-year-old children. The psychomotor profile of a sample of 49 preschool children (53.1% boys and 46.9% girls; Mage = 4.66, SD = 0.27) was examined using a quasi-experimental model and the Movement Assessment Battery for Children-2 (MABC-2). The percentiles achieved in the tests that make up the battery were measured, which were grouped into three domains: manual dexterity, aiming and catching and balance, as well as the overall psychomotor profile. The control group (n = 25, 52% boys and 48% girls) followed an annual Physical Education programme consisting of a single 50-minute weekly session. The experimental group (n = 24, 54.2% boys and 45.8% girls) followed an early psychomotor stimulation programme based on the Doman method, with 5 weekly sessions lasting 25 minutes each. The results show no significant differences in the psychomotor profile between the control and experimental groups, both in the total percentile and in the percentile of manual dexterity, aiming and catching or balance. Significant differences were found in both groups between the pre-test and the post-test, with greater differences displayed in the control group. The findings suggest that a single session of Physical Education has a greater impact on the psychomotor profile than 5 weekly 25-minute sessions following the Doman method of early stimulation. Furthermore, these findings also point to the need to provide personalised Physical Education that enhances the psychomotor profile of each child