Suchergebnisse

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Juan Luis Panadés Vargas, nació en Anrofagasca el 10 de abril de 1937. Provenía de un hogar vinculado con el norte y más todavía, de una experiencia de vida que discurrió en los puntos de humanidad arrancado de las soledades del desierto y de la costa. Su familia se vinculó con los inicios del pueblo de Pampa Unión, destacanose sus parientes del tronco Ferraro y Panadés. con la fomosa botica "Ferraro'; y también con Mejillones, donde su padre, Juan, incentivó la creación, hacia fines de la década de 1940, del Centro para el Progreso; iniciativa que corrió corno un reguero de pólvora en todo el Norte Grande, desde Arica hasta Anrofagasta, con especial gravitación en lo económico y social.

Las relaciones entre Chile y Bolivia pueden examinarse desde diversos ángulos o perspectivas. Es nuestra intención aproximarnos desde el enfoque de las Relaciones Internacionales, como lo postula la escuela de Pierre Renouvin y, en este presupuesto teórico, acentuar las principales dificultades como los puntos de acercamientos que han existido a lo largo de un siglo y medio cuando sobrevinieron las originarias desinteligencias.

Este texto analiza mediante el estudio de la discusión de los Recursos Humanos en la Salud en República Dominicana a la luz de la meta: "salud para todos en el año 2000"; planteando sugerencias sobre el tipo de recursos necesarios en consonancia con esa meta, así como señalando las limitaciones principales identificada por ello, para que dichos recursos pudieran adecuarse a las mismas y los posibles caminos a seguir para superar dichas limitaciones.

PurposeThe purpose of this paper is to analyze the existence of differences in the implementation of environmental practices between companies that possess some form of certified environmental management system (ISO 14001 or EMS) and those that do not have any such system. This study also investigates whether companies with a certified EMS are also making additional environmental demands on their suppliers.Design/methodology/approachAn empirical study utilizing survey data from automotive supplier organizations was completed. A total of 157 in‐person interviews were conducted with managers of Spanish companies which are automotive supplier organizations. Logistic regressions and non‐parametric tests are used to evaluate hypotheses.FindingsA positive relation was found to exist between the possession of certified EMS, specifically ISO 14001 and eco‐management and audit scheme, and the environmental demands that these organizations impose on their suppliers. This finding implies that environmental concern spreads upstream in the supply chain. The environmental demands on suppliers increase with customer organization size, but the degree of internationalization, measured by the rates of imports and exports, does not show a significant relationship to these pressures.Research limitations/implicationsThe study is limited to a single (important) industrial sector and cannot be directly extrapolated to other industries.Originality/valueThere is a paucity of research that relates the adoption of certified EMS by companies to the adoption and implementation of environmental practices in their own organizations and in supply chain partners. This is the first such study to be completed for the automotive industry.

This paper investigates whether lockdown policies aggravated mental health problems of older populations (50 and over) in Europe during the first COVID-19 wave. Using data from the Survey of Health, Ageing and Retirement in Europe (SHARE COVID-19 questionnaire) and from the Oxford COVID-19 Government Response Tracker for 17 countries, we estimate the causal effect of lockdown policies on mental health by combining cross-country variability in the strictness of the policies with cross-individual variability in face-to-face contacts prior to the pandemic. We find that lockdown policies worsened insomnia, anxiety, and depression by 5, 7.2 and 5.1 percentage points, respectively. This effect was stronger for women and those aged between 50 and 65. Interestingly, lockdown policies notably damaged the mental health of healthy populations. We close with a discussion of lockdown policies targeted at individuals above 65 and/or with pre-existing conditions. ; We acknowledge financial support from Agencia Estatal de Investigación (Ministerio de Ciencia e Innovación), project PID2019-104452RB-I00, Fondo Europeo de Desarrollo Regional and Consejería de Transformación Económica, Industria, Conocimiento y Universidades, Junta de Andalucía, projects P18-RT-2135 and CV20-35470. Funding for open access publishing: Universidad Pablo de Olavide/CBUA.

Time-dependent density functional theory (TDDFT) is an efficient method to evaluate excited-state properties of electron systems. However, it is not so well-known that it also provides a very accurate prescription to obtain correlation energies by using the so-called adiabatic connection fluctuation dissipation theorem (ACFDT). In this paper we present a detailed study of the ACFDT performance in bulk solids and jellium clusters. These results confirm the reliability of the ACFDT scheme and pave the way to future applications where standard implementations of the Kohn−Sham density functional theory dramatically fail, in particular to weakly bound systems and van der Waals complexes. ; This work has being funded by the EC Network of Excellence NANOQUANTA (ref NMP4-CT-2004-500198), the Spanish Ministry of Education (grant FIS2004-05035-C03-03), the SANES (ref NMP4-CT-2006-017310), DNA-NANODEVICES (ref IST-2006-029192), and NANO-ERA Chemistry projects, the University of the Basque Country EHU/UPV (SGIker Arina), and the Basque Country Government. The research by JJF and PGG is financed by the Juan de la Cierva and the Ramon y Cajal Programs, respectively. ; Peer reviewed

INTRODUCTION: Periodontal disease ranges from simple gums inflammation to major damage to the periodontal tissues, even losing teeth. Severe periodontitis has a world overall prevalence of 11.2%. These are evaluated with periodontal probes and oral epidemiological indices. Our aim is to estimate the prevalence and severity of periodontal disease of a Spanish military population according to the 2013 WHO criteria. METHODS: Observational study of prevalence carried out in a representative random sample of 221 military staff from the Spanish Army base 'Conde de Gazola'. Prevalence was estimated by calculating the Community Periodontal Index modified, loss of attachment, Plaque Index and Gingival Bleeding Index measured with a third-generation electronic 'Pa-on' periodontal probe. RESULTS: Averages of probing depth, recession and clinical attachment level were 2.17, 0.19 and 2.36 mm. Plaque and gingival bleeding indices were 71% and 40.3%. All subjects bled in some tooth after probing. 3.6% of subjects had no periodontal pockets, 58.8% mild periodontal pockets and 37.1% severe periodontal pockets. All had some loss of attachment, 52% mild loss of attachment and 47.5% severe loss of attachment. Teeth present with and without bleeding were 24.4 (86.5%) and 3.6 (13.1%). 28% of teeth had periodontal pockets and 40.4% loss of attachment. Sextant averages with periodontal pockets and loss of attachment were 2.79 and 3.56. CONCLUSIONS: Our plaque and gingival bleeding indices were high and we found a higher prevalence and severity of periodontal disease than other Spanish and foreign military populations. This could be related to differences in context, life habits and insufficient dental hygiene.

We present an ab initio study of the anisotropy and atomic relaxation effects on the optical properties of nanoparticle dimers. Special emphasis is placed on the hybridization process of localized surface plasmons, plasmon-mediated photoinduced currents, and electric-field enhancement in the dimer junction. We show that there is a critical range of separations between the clusters (0.1–0.5 nm) in which the detailed atomic structure in the junction and the relative orientation of the nanoparticles have to be considered to obtain quantitative predictions for realistic nanoplasmonic devices. It is worth noting that this regime is characterized by the emergence of electron tunneling as a response to the driven electromagnetic field. The orientation of the particles not only modifies the attainable electric field enhancement but can lead to qualitative changes in the optical absorption spectrum of the system. ; We thankfully acknowledge financial support by the European Research Council (ERC-2010-AdG Proposal No. 267374 and ERC-2011-AdG Proposal No. 290891), the Spanish Government (Grants MAT2011-28581-C02-01, FIS2013-46159-C3-1-P, and MAT2014-53432-C5-5-R), and the Basque Country Government (Grupos Consolidados IT-578-13). ; Peer Reviewed

Abstract. Fast ground subsidence in southern Saskatchewan (Canada) between the city of Saskatoon and Rice Lake was observed with the RADARSAT-2 interferometric synthetic aperture radar (InSAR) during 2008–2011. We collected 23 ascending Multi-Look Fine 3 Far (MF3F) and 15 descending Standard 3 (S3) RADARSAT-2 images and performed time-series analysis utilizing Small Baseline Subset (SBAS) and Multidimensional SBAS (MSBAS) methodologies. We observed two well-defined circular regions located a few kilometers apart and subsiding with the nearly constant rate of about 10 cm yr-1. MSBAS decomposition revealed the presence of both vertical and horizontal ground displacements. For further analysis we selected two highly coherent interferograms spanning from November to December 2009 until April 2010 thanks to particularly favorable ground conditions that displayed superior coherence. We performed modeling and inversion assuming spherical and sill source models in order to determine the source location, depth and strength. The sill source model produced the smallest residual of 0.7 cm yr-1 applied to ascending interferograms and 0.9 cm yr-1 applied to descending interferograms. A residual of 1.0 cm yr-1 was achieved with the sill model when both ascending and descending interferograms were used. This model suggested sources located at 1.3 and 1.2 km depth with radius of 1.0 and 1.3 km for eastern and western areas, respectively. The spherical model suggested slightly shallower sources located at 0.9 and 0.8 km. We could not precisely identify the cause of this deformation, but the observed subsidence rate and source depth suggest mining-related origin. Topographic changes produced by this subsidence rate over a long time may produce shallow groundwater redistribution and flooding of agricultural lands.