Strategy for the modernization of the armed forced: a study made with small and medium companies of the sector of the spanish defence

Concerning the model Attitudes-Intentions of behaviour (Bagozzi, 1992) and the comprehensive model of Turnover (Griffeth & Hom, 2001), the present study intends to analyze the mediating role of three attitudes (affective commitment, general satisfaction and satisfaction oriented towards the client) in the relationship that variables characterizing the work (Job Motivating Potential, Perception of Employment Alternatives and Sacrifice Perception) establish with output variables (Intention of Turnover and Organization Recommendation). We used a heterogeneous sample of 303 workers belonging to different actors of hotel business. The results of the mediating tests clarify the importance of the considered attitudes in the way job characteristics affect the intentions of behavior of the hotel employees. In general, we think our results can contributed to develop a relevant model for explaining the behavioral intentions of the professionals working with clients (front-office), which conciliates the practices of human resources with the logic of the market

ROV's Video Recordings as a Tool to Estimate Variation in Megabenthic Epifauna Diversity and Community Composition in the Guaymas Basin

Patterns in benthic megafauna diversity in littoral and intertidal zones in the Gulf of California have been associated with both habitat heterogeneity and substrate type. Current knowledge of invertebrate communities in hard bottom habitats at depths > 200 m in the Gulf is poor due to the methodological limitations inherent in sampling deep habitats. Using video imagery of benthic habitats coupled with environmental data from the Remotely Operated Vehicle Doc Ricketts, we documented variation in the diversity and community composition of the benthos from 849 to 990 m depth in the NW limit of the Guaymas Basin, in relation to dissolved oxygen and substrate characteristics. This depth range overlaps an oxygen minimum zone where oxygen drops to levels < 0.5 ml L-1 and strong gradients in a narrow depth range occur. Dissolved oxygen varied along our benthic survey from 0.200 to 0.135 ml L-1. We observed high taxonomic richness across an area of rocky outcrops through the lower transition zone. This megafaunal pattern differs from reports from other oxygen minimum zones characterized by a great abundance of a few species. Taxonomic richness diminished at depths with reduced dissolved oxygen in the lower boundary of the oxygen minimum zone with increasing soft sediment cover. We found that rocky outcrops and structure-forming organisms such as corals, sponges, and oyster aggregations supported a higher diversity (H' = 0.8) than soft sediment (H' = 0.7) as have been observed in other habitats such as seamounts. Environmental variables that explained most of the megafaunal variation were substrate type (18.4%), depth (1.14%) and temperature (0.9%). Salinity (0.45%) and dissolved oxygen (0.3%) were less important factors to explain the megafaunal composition variance. Substrate type played a key role in the diversity and composition of benthic megafauna. These results broaden our understanding concerning the potential roles of substrate characteristics in the community composition of the deep-sea benthic megafaunal assemblages in the Gulf of California and oxygen minimum zones in general

Effect of iron thicknesses on spin transport in a Fe/Au bilayer system

This paper is concerned with a theoretical analysis of the behavior of optically excited spin currents in bilayer and multilayer systems of ferromagnetic and normal metals. As the propagation, control and manipulation of the spin currents created in ferromagnets by femtosecond optical pulses is of particular interest, we examine the influence of different thicknesses of the constituent layers for the case of electrons excited several electronvolts above the Fermi level. Using a Monte-Carlo simulation framework for such highly excited electrons, we first examine the spatio-temporal characteristics of the spin current density driven in a Fe layer, where the absorption profile of the light pulses plays an important role. Further, we examine how the combination of light absorption profiles, spin-dependent transmission probabilities, and iron layer thicknesses affect spin current density in a Fe/Au bilayer system. For high-energy electrons studied here, the interface and secondary electron generation have a small influence on spin transport in the bilayer system. However, we find that spin injection from one layer to another is most effective within a certain range of iron layer thicknesses

Volume-assured pressure support mode plus pirfenidone as resuscitation therapy in patients with exacerbation of idiopathic pulmonary fibrosis

Introduction: Treatment among advanced stage idiopathic pulmonary fibrosis is quite challenging, especially considering that no major evidence has been released about it. This case report demonstrates and discusses the benefit of non-invasive mechanical ventilation in volume-assured pressure support (AVAPS) mode plus pirfenidone based on the relief of a patient’s symptoms in combination with high-resolution computed tomography (HRCT) evidence.Material and methods: An 83-year-old female patient with multiple hospital admissions within a  six-month period initially presented with cardiac symptoms which were later attributed to a possible exacerbation of her primary diagnosis, idiopathic pulmonary fibrosis.Conclusion: The addition of non-invasive mechanical ventilation in AVAPS mode plus pirfenidone can improve the survival rates even in patients with current exacerbations of acute respiratory failure due to idiopathic pulmonary fibrosis

Detección de enfermedades de naturaleza viral transmitidas por semillas, en tres especies hortícolas de la Región del Maule

Resumen (Spanish, English)109 p.Durante la temporada agrícola 1994-95 se realizó una investigación en la VII región para determinar la calidad sanitaria tanto de semillas producidas por agricultores como aquellas distribuidas por comerciantes. El objetivo fue determinar la presencia de enfermedades de naturaleza viral transmitidas por esta vía, en solanáceas y cucurbitáceas, en particular tomate, ají y melón. Se prospectaron cinco localidades (Villa Prat, Villa Seca, Colin, Pencahue y Melozal) donde se recolectaron muestras de semillas de las especies en estudio para su posterior análisis. Además se obtuvieron muestras de distribuidores de semillas de hortalizas. Junto con recolectar información epidemiológica a través de encuestas se determinó la presencia de virus del mosaico del tomate (ToMV), virus del mosaico del pepino (CMV), virus del mosaico de la calabaza (SqMV) y virus del mosaico de la sandía raza 2 (WMV-2) a través de pruebas serológicos (DAS-ELISA), plantas indicadoras y sintomatología visual. Los fitovirus encontrados en muestras de semillas de solanáceas fueron ToMV y CMV, en cambio, en cucurbitáceas fueron encontradas ToMV, CMV y WMV-2. En relación a la distribución de estos fitovirus, tanto ToMV como CMV se encontraron en las cinco localidades estudiadas, en cambio WMV-2, solo se encontró en la localidad de Melozal. ToMV fué el fitovirus encontrado con mayor frecuencia, si se considera el total de muestras de semillas analizadas, en cambio, SqMV fue el unico fitovirus que no se encontró en las muestras de semillas estudiadas

Detección de enfermedades fungosas y bacteriales transmitidas por semilla, en tres especies hortícolas de la Región del Maule.

Resumen (Spanish, English)80 p.En la región del Maule se dedican 15.000 ha. a la producción de hortalizas, entre las que destacan el cultivo de ají (Capsicum annum), melón (Cucumis melo) y tomate (Lycopersicon esculentum), una de las principales características de la actividad agrícola de la Región es que esta en manos de pequeños agricultores, los cuales generalmente están asociados a bajo nivel tecnológico lo que incide fuertemente en la calidad de la producción. Otros de los factores que se asocian es la presencia de enfermedades, las cuales muchas tienen su origen en la utilización de semilla contaminada con agentes fitopatógenos. Sobre esta base se analizaron 39 muestras de semilla (ají, melón y tomate) provenientes de agricultores y de distribuidores de semilla de la Región. El análisis se realizó utilizando dos técnicas propuestas por Richardson (1980), la siembra en medio de cultivo y la producción de plantas. Los patógenos encontrados con mayor frecuencia en las semillas analizadas fueron Calvibacter michiganense ssp. michiganense, Alternaría, Fusarium, Pseudomonas syringae pv. tomato y pv. lachrymans, entre los mas destacados

Intra and Inter-Population Morphological Variation of Shape and Size of the Chilean Magnificent Beetle, Ceroglossus chilensis in the Baker River Basin, Chilean Patagonia

The alteration of habitat generates different degrees of stress in insects. It has been suggested that the degrees of phenotypic disturbances reflect the ability of an individual to overcome the effects of stress. The Baker River Basin in the Aysén Region, Chilean Patagonia has a very fragmented landscape, due to the destruction of the native forest and the use of land for agriculture and animal husbandry. This alteration should generate different degrees of disturbances in the insect communities, whose effects may be quantified by geometric morphometric tools. We analyzed morphological differences in 244 males and 133 females of the the Chilean magnificent beetle, Ceroglossus chilensis (Eschscholtz) (Coleoptera: Carabidae) collected in January, 2007, in mixed forests of Nothofagus dombeyi Mirbel (Ørsted) (Fagales: Nothofagaceae) and N. nitida Hofmus and in Second-growth forest of N. pumilio (Poepp. & Endl.) Krasser. Males were generally wider in the pronotum, while females had wider abdominal sternites. Although there were significant differences in shape and size between mature forests and second-growth forest, these were less significant among the sites within each type of vegetal formation. Individuals had more shape variations in the mature forest. We suggest that differences in shape are due at least in part to the isolation of the habitat. The differences found between sexes raises the question of how morphological variations and sexual dimorphism may be affected spatially by natural selection

Small Renal Masses: Incidental Diagnosis, Clinical Symptoms, and Prognostic Factors

Introduction. The small renal masses (SRMs) have increased over the past two decades due to more liberal use of imaging techniques. SRMs have allowed discussions regarding their prognostic, diagnosis, and therapeutic approach. Materials and methods. Clinical presentation, incidental diagnosis, and prognosis factors of SRMs are discussed in this review. Results. SRMs are defined as lesions less than 4 cm in diameter. SRM could be benign, and most malignant SMRs are low stage and low grade. Clinical symptoms like hematuria are very rare, being diagnosed by chance (incidental) in most cases. Size, stage, and grade are still the most consistent prognosis factors in (RCC). An enhanced contrast SRM that grows during active surveillance is clearly malignant, and its aggressive potential increases in those greater than 3 cm. Clear cell carcinoma is the most frequent cellular type of malign SRM. Conclusions. Only some SRMs are benign. The great majority of malign SRMs have good prognosis (low stage and grade, no metastasis) with open or laparoscopic surgical treatment (nephron sparing techniques). Active surveillance is an accepted attitude in selected cases

SHARDS: Constraints on the dust attenuation law of star-forming galaxies at z~2

We make use of SHARDS, an ultra-deep (<26.5AB) galaxy survey that provides optical photo-spectra at resolution R~50, via medium band filters (FWHM~150A). This dataset is combined with ancillary optical and NIR fluxes to constrain the dust attenuation law in the rest-frame NUV region of star-forming galaxies within the redshift window 1.5<z<3. We focus on the NUV bump strength (B) and the total-to-selective extinction ratio (Rv), targeting a sample of 1,753 galaxies. By comparing the data with a set of population synthesis models coupled to a parametric dust attenuation law, we constrain Rv and B, as well as the colour excess, E(B-V). We find a correlation between Rv and B, that can be interpreted either as a result of the grain size distribution, or a variation of the dust geometry among galaxies. According to the former, small dust grains are associated with a stronger NUV bump. The latter would lead to a range of clumpiness in the distribution of dust within the interstellar medium of star-forming galaxies. The observed wide range of NUV bump strengths can lead to a systematic in the interpretation of the UV slope ($\beta$) typically used to characterize the dust content. In this study we quantify these variations, concluding that the effects are $\Delta\beta$~0.4.Comment: 13 pages, 11+2 figures, 3 tables. MNRAS, in pres