Los ajustes deprimen el empleo. Análisis de coyuntura del mercado de trabajo en el segundo trimestre de 2012

La economía española ha entrado en recesión en el segundo trimestre de 2012, por segunda vez desde que estalló la crisis económica. La intensa caída de la actividad económica provoca una nueva oleada de destrucción de empleo. Como consecuencia, se ha alcanzado la tasa de paro más alta en un trimestre en la serie histórica de la EPA que ofrece el INE. En el artículo presente se analizan la evolución de las principales variables laborales en el mercado de trabajo español y de Andalucía. Se presta especial atención a la formación de la mano de obra y a la evolución de los diferentes grupos de trabajadores cualificados de acuerdo con la evolución del ciclo económico en el periodo 2008-2012.In the second quarter of 2012, Spanish economy has come into a new recession period for the second time since the beginning of the economic crisis. The big decrease of economic activity is the cause of a new wave of employment destruction. As a result, the highest rate of unemployment in modern Spanish economic history has been reached, according to the data provided by the National Institute of Statistics. In this paper, we analyse the evolution of the main labour indicators in the Spanish and Andalusian Labour Markets. We pay special attention to the impact of economic crisis on different groups of workers according to their educational levels in the period 2008-2012

Spectroscopic characterisation of the stellar content of ultra diffuse galaxies

Understanding the peculiar properties of Ultra Diffuse Galaxies (UDGs) via spectroscopic analysis is a challenging task requiring very deep observations and exquisite data reduction. In this work we perform one of the most complete characterisations of the stellar component of UDGs to date using deep optical spectroscopic data from OSIRIS at GTC. We measure radial and rotation velocities, star formation histories (SFH) and mean population parameters, such as ages and metallicities, for a sample of five UDG candidates in the Coma cluster. From the radial velocities, we confirm the Coma membership of these galaxies. We find that their rotation properties, if detected at all, are compatible with dwarf-like galaxies. The SFHs of the UDG are dominated by old (~ 7 Gyr), metal-poor ([M/H] ~ -1.1) and alpha-enhanced ([Mg/Fe] ~ 0.4) populations followed by a smooth or episodic decline which halted ~ 2 Gyr ago, possibly a sign of cluster-induced quenching. We find no obvious correlation between individual SFH shapes and any UDG morphological properties. The recovered stellar properties for UDGs are similar to those found for DDO44, a local UDG analogue resolved into stars. We conclude that the UDGs in our sample are extended dwarfs whose properties are likely the outcome of both internal processes, such as bursty SFHs and/or high-spin haloes, as well as environmental effects within the Coma cluster.Comment: Accepted for publication in MNRA

Instalados en la recesión económica. Análisis de coyuntura del mercado de trabajo en el segundo semestre de 2012

A lo largo de 2012, España experimenta una profundización en la recesión económica que está sufriendo. Durante los cuatro trimestres de este año, no se han visto cifras positivas de crecimiento, sino una caída constante. La misma tendencia se observa en el resto de economías europeas, que en la última parte del año están adentrándose, o van camino de caer, de nuevo en la recesión. Como consecuencia de esta evolución, el deterioro del mercado de trabajo español sigue aumentando. Cae la ocupación y aumenta el desempleo hasta casi seis millones de personas, alcanzándose la tasa de paro más elevada de los registros de la EPA (26,02%). En el presente trabajo se presenta una panorámica sobre la evolución de la economía y el mercado de trabajo en España en el segundo semestre de 2012. El artículo también recoge un epígrafe dedicado al análisis de la evolución de las variables económicas y laborales más relevantes en Andalucía

Desequilibrios crecientes. Análisis de coyuntura del mercado de trabajo en el primer semestre de 2013

A lo largo del primer semestre de 2013, la economía española ha seguido en el proceso de recesión económica, si bien se presentan algunos indicios de que las previsiones para los próximos años pueden mejorar indicando el final de la crisis y el comienzo de la recuperación económica. No obstante, la tasa de paro en España se situó en el 26,26%, y la tasa de empleo en el 43,91%, valores muy alejados de la media de la UE. En el presente artículo se presenta una panorámica sobre la evolución de la economía y del mercado de trabajo en España en el primer trimestre de 2013. En primer lugar se analiza la evolución del cuadro macroeconómico general de la economía española. En las tres secciones siguientes se analizan, respectivamente, la oferta de trabajo, la demanda de trabajo y el desempleo. El artículo concluye con un epígrafe dedicado a la evolución de las variables económicas y laborales en Andalucía en el mismo periodo de tiempo

Predictive models based on RSM and ANN for roughness and wettability achieved by laser texturing of S275 carbon steel alloy

Laser texturing is increasingly gaining attention in the field of metal alloys due to its ability to improve surface properties, particularly in steel alloys. However, the input parameters of the technology must be carefully controlled to achieve the desired surface roughness. Roughness is critical to the activation of the surface before further bonding operations, and it is often assessed using several parameters such as Ra, Rt, Rz, and Rv. This surface activation affects the properties of the metal alloy in terms of wettability, which has been evaluated by the deposition of ethylene glycol droplets through a contact angle. This allowed a direct relationship to be established between the final roughness, the wettability of the surface and the texturing parameters of the alloy. This raises the interest of being able to predict the behaviour in terms of roughness and wettability for future applications in improving the behaviour of metallic alloys. In this research, a comparative analysis between Response Surface Models (RSM) and predictive models based on Artificial Neural Networks (ANN) has been conducted. The model based on neural networks was able to predict all the output variables with a fit greater than 90%., improving that obtained by RSM. The model obtained by ANN allows a greater adaptability to the variation of results obtained, reaching deviations close to 0.2 μm. The influence of input parameters, in particular power and scanning speed, on the achieved roughness and surface wettability has been figured out by contact angle measurements. This increases its surface activation in terms of wettability. Superhydrophilic surfaces were achieved by setting the power to 20 W and scanning speed to ten mm/s. In contrast, a power of 5 W and a scanning speed of 100 mm/s reduced the roughness values.Funding for open access charge: Universidad de Málaga / CBU

Triaxial stellar systems following the r1/n luminosity law: an analytical mass-density expression, gravitational torques and the bulge/disc interplay

We have investigated the structural and dynamical properties of triaxial stellar systems whose surface brightness profiles follow the r1/n luminosity law - extending the analysis by Ciotti, who explored the properties of spherical r1/n systems. A new analytical expression that accurately reproduces the spatial (i.e., deprojected) luminosity density profiles (error less than 0.1 per cent) is presented for detailed modelling of the Sérsic family of luminosity profiles. We evaluate both the symmetric and the non-axisymmetric components of the gravitational potential and force, and compute the torques as a function of position. For a given triaxiality, stellar systems with smaller values of n have a greater non-axisymmetric gravitational field component. We also explore the strength of the non-axisymmetric forces produced by bulges with differing n and triaxiality on systems having a range of bulge-to-disc ratios. The increasing disc-to-bulge ratio with increasing galaxy type (decreasing n) is found to greatly reduce the amplitude of the non-axisymmetric terms, and therefore reduce the possibility that triaxial bulges in late-type systems may be the mechanism or perturbation for non-symmetric structures in the disc. Using seeing-convolved r1/n-bulge plus exponential-disc fits to the K-band data from a sample of 80 nearby disc galaxies, we probe the relations between galaxy type, Sérsic index n and the bulge-to-disc luminosity ratio. These relations are shown to be primarily a consequence of the relation between n and the total bulge luminosity. In the K band, the trend of decreasing bulge-to-disc luminosity ratio along the spiral Hubble sequence is predominantly, though not entirely, a consequence of the change in the total bulge luminosity; the trend between the total disc luminosity and Hubble type is much weake

Effectiveness of interventions to improve medication adherence in adults with depressive disorders: a meta-analysis

Trastorno depresivo mayor; Metanálisis; Adherencia al tratamientoTrastorn depressiu major; Metaanàlisi; Adherència al tractamentMajor depressive disorder; Meta-analysis; Treatment adherenceBackground Non-adherence to medication is a major obstacle in the treatment of depressive disorders. We systematically reviewed the literature to evaluate the effectiveness of interventions aimed at improving adherence to medication among adults with depressive disorders with emphasis on initiation and implementation phase. Methods We searched Medline, EMBASE, The Cochrane Central Register of Controlled Trials (CENTRAL), PsycINFO, Social Science Citation Index and Science Citation Index for randomized or non-randomized controlled trials up to January 2022. Risk of bias was assessed using the criteria of the Cochrane Collaboration. Meta-analyses, cumulative and meta-regression analyses for adherence were conducted. Results Forty-six trials (n = 24,324) were included. Pooled estimate indicates an increase in the probability of adherence to antidepressants at 6 months with the different types of interventions (OR 1.33; 95% CI: 1.09 to 1.62). The improvement in adherence is obtained from 3 months (OR 1.62, 95% CI: 1.25 to 2.10) but it is attenuated at 12 months (OR 1.25, 95% CI: 1.02 to 1.53). Selected articles show methodological differences, mainly the diversity of both the severity of the depressive disorder and intervention procedures. In the samples of these studies, patients with depression and anxiety seem to benefit most from intervention (OR 2.77, 95% CI: 1.74 to 4.42) and collaborative care is the most effective intervention to improve adherence (OR 1.88, 95% CI: 1.40 to 2.54). Conclusions Our findings indicate that interventions aimed at improving adherence to medication among adults with depressive disorders are effective up to six months. However, the evidence on the effectiveness of long-term adherence is insufficient and supports the need for further research efforts.This study has been funded by Instituto de Salud Carlos III through the project "PI18/00767" (Co-funded by European Regional Development Fund/European Social Fund "A way to make Europe"/"Investing in your future")

Estudio sobre el proceso de enseñanza-aprendizaje en las universidades populares españolas. Una visión desde los propios implicados

This study tries to know the process education-learning in one the institutions less well-known nonFormal Education in Spain: the Popular Universitires. The study took I finish at national level by means of a descriptive methodology using three types different from questionnaires (directors, monitors and participants) like techniqueof collection of data. As well, these data were equipped with meaning by means of a study of case in the Popular University of Loja (Granada) in which were used like techniques of collection of data the semistructured interviews, groups of discussion and institutional document analysis. Between the most important conclusions we can emphasize than the education-learning process takes like fundamental axis the student (learning rate, motivation, individualized education…).Este estudio trata de conocer el proceso de enseñanza-aprendizaje en una de las instituciones de Educación no Formal menos conocida en España: las Universidades Populares. El estudio se llevó acabo a nivel nacional mediante una metodología descriptiva utilizando tres tipos distintos de cuestionarios (directivos, monitores y participantes) como técnica de recogida de datos. A su vez, estos datos fueron dotados de significado mediante un estudio de caso en la Universidad Popular de Loja (Granada) en el que se utilizaron como técnicas de recogida de datos las entrevistas semiestructuradas, grupos de discusión y análisis de documentos institucionales. Entre las conclusiones más importantes podemos destacar que el proceso de enseñanza-aprendizaje toma como eje fundamental al alumno (ritmo de aprendizaje, motivación, enseñanza individualizada…)