Adaptación al español del instrumento sobre cultura organizacional de Denison

En este estudio se presentan los resultados de la adaptación a grupos I+D universitarios de habla hispana de la encuesta sobre cultura organizacional de Denison. Este cuestionario, compuesto por 60 ítems que identifican 12 tipos culturales, que a su vez se agrupan en cuatro dimensiones, ha demostrado su influencia para aumentar la efectividad organizacional. La adaptación al castellano que aquí se propone ha sido aplicada a 488 personas pertenecientes a 39 grupos de I+D tecnológicos de la Universidad Politécnica de Valencia. Los resultados obtenidos muestran unas propiedades psicométricas adecuadas para la adaptación realizada en cuanto a validez y fiabilidad, que replican casi en su totalidad la estructura del modelo de la versión original. This article presents a Spanish adaptation of Denison Organizational Culture Survey. This questionnaire consists of 60 items, grouped in 12 sub-scales, which identify 4 cultural dimensions. These dimensions have been widely study and their influence in organizational effectiveness is accepted. The Spanish adaptation proposed here has been applied in 488 participants of 39 I+D technological groups of Polytechnic University of Valencia. Results show adequate psychometric properties, so we can conclude that the Spanish adaptation almost fully replicates the structure of the original version in English

Estudio de factibilidad financiera para el montaje de una granja porcícola con 252 hembras en el departamento de Antioquia para los años 2013-2018

Durante los últimos cinco años, el consumo per cápita de carne de cerdo en Colombia ha estado alrededor de los 3 Kg persona/año. A esta cifra tenemos que añadir la producción de cerdos de economía campesina, cuyo destino principal es el autoconsumo y la distribución a nivel local, en regiones alejadas del país o con menor desarrollo. Sin embargo, es importante resaltar el gran potencial de expansión que aún posee nuestro sector, ya que el promedio de consumo de carne de cerdo a nivel mundial es de 16 Kg persona/año. Esta evaluación de factibilidad financiera refleja la viabilidad de invertir en este sector productivo como una alternativa en el establecimiento y producción de porcinos. Adicionalmente, es importante resaltar que se evidenció que la crisis económica mundial es uno de los factores que puede afectar la situación presentada en el sector porcícola. Los datos técnicos del presente estudio arrojaron que de las 252 hembras de la granja porcícola, se obtienen 7.106 Cerdos para la venta al año. Para lograr esta solvencia económica y mantener la granja en buen funcionamiento, se necesita una inversión inicial de $3.302.786.700. El estudio de mercado definió que el producto principal que se pretende sacar al mercado consiste en cerdos con un peso aproximado de 105 Kg y 150 días de edad. El precio comercial de la granja, para la comercialización de los Cerdos empezará en$4.500 kg y aumentando cada año en base a la inflación.During the last five years, the per capita consumption of pork meat in Colombia has been around 3 kg person/year. To this digit we have to add the production of pork produced by the economy of farmers, whose main purpose is the consumption and distribution in a local level, in faraway regions of the country or with less development. However, it is important to stand out the great potencial of expansion that still has our sector since the average consumption of pork meat worldwide is of 16 kg person/year. This evaluation of financial feasibility reflects the viability to invest in this productive sector as an alternative in the establishment and production of pork. Additionally, is important to highlight that the global economic crisis was evidenced as one of the factors that can be presented in the pork industry. The technical data of the present study showed that of the 252 female of the pig farm, you obtain 7106 pigs to sale every year. To achieve this economic solvency and maintain the farm good performance, you need an initial investment of $3.302.786.700. The marketing research determined that the main product that is pretended to bring out in the market consists in pigs with an approximate weight of 105 kg and 150 days old. The commercial price of the farm for the marketing of the pigs will begin in$4500 a kg and it will increase every year based on inflation

El sector energético español : desde su liberalización hasta la actualidad = The Spanish energy sector : from its liberalization to the present day

[ES] El trabajo versa sobre el sistema eléctrico español. Abarca un análisis sobre una introducción al mismo, hasta las primeras intervenciones del Estado, incluyendo lo que supuso la liberalización de este y su composición actualmente. Se describe, de forma breve, las principales actividades que operan dentro del sector energético, junto al régimen que las regula. Se procede a desarrollar una comparación con el régimen energético del país vecino, Francia, explicando su actuación, enumerando las similitudes y diferencias con nuestro sistema. Y, se explica, de forma somera, la realidad vivida en España, concretamente, en relación con la subida de precios que ha experimentado el sector, junto a las medidas que se han tomado a cabo y el resultado de estas

Ram pressure profiles in galaxy groups and clusters

Using a hybrid method that combines non-radiative hydrodynamical simulations with a semianalytic model of galaxy formation, we determine the ram pressure experienced by galaxies in haloes with virial masses 12.5 ≤ log (M200/ h−1 M⊙) < 15.35 as a function of the halocentric distance, for redshifts 0 ≤ z ≤ 3. The ram pressure is calculated with a self-consistent method that uses the simulation gas particles to obtain the properties of the intergalactic medium. The ram pressure profiles obtained can be well described by beta profile models, with parameters that depend on redshift and halo virial mass in a simple fashion. The fitting formulae provided here will prove useful to include ram pressure effects into semi-analytic models based on methods that lack gas physics, such as dark-matter-only simulations or the Press–Schechter formalism.Instituto de Astrofísica de La PlataFacultad de Ciencias Astronómicas y Geofísica

Polyphosphate accumulation and cell-surface properties by autochthonous bacteria from Argentinian Patagonia

Bacteria persisting in environments contaminated with polycyclic aromatic hydrocarbons (PAHs) have developed physiological mechanisms to counteract environmental stress. Inorganic polyphosphate accumulation represents one of these possible mechanisms. Likewise, properties such as cell-surface hydrophobicity, auto-aggregation, biofilm formation and bioemulsifying activity could facilitate interaction of microorganisms with hydrophobic organic compounds. In this work, these physiological properties were compared in indigenous bacteria from polluted sediments from Argentinian Patagonia, which were cultivated in two culture media (LBm and JPP) as a way to improve in the next future the PAHs removal. The highest hydrophobicity values were obtained in Rhodococcus strains, while Bacillus sp. B18 showed the highest auto-aggregation percentage and emulsion index. The highest numerical values of biofilm formation were determined in Rhodococcus sp. F27, Pseudomonas sp. P26, and Gordonia sp. H19 either on hydrophilic or on hydrophobic support. The qualitative and quantitative polyP determinations confirmed the presence of this biopolymer in the strains evaluated. The highest intracellular phosphate mean values were obtained in Bacillus sp. B18 in LBm and Rhodococcus erythropolis 20 in JPP. The bacteria evaluated belonging to different genera showed significant differences in their cell-surface characteristics, bioemulsifying activity and polyP accumulation. The low-cost JPP culture medium was selected for future contaminant removal studies.Fil: Correa Deza, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; ArgentinaFil: Lobo, Constanza Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; ArgentinaFil: Ferrero, Marcela Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Yacimientos Petrolíferos Fiscales, Argentina; ArgentinaFil: Juárez Tomás, María Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentin

Ram pressure profiles in galaxy groups and clusters

Using a hybrid method that combines non-radiative hydrodynamical simulations with a semianalytic model of galaxy formation, we determine the ram pressure experienced by galaxies in haloes with virial masses 12.5 ≤ log (M200/ h−1 M⊙) < 15.35 as a function of the halocentric distance, for redshifts 0 ≤ z ≤ 3. The ram pressure is calculated with a self-consistent method that uses the simulation gas particles to obtain the properties of the intergalactic medium. The ram pressure profiles obtained can be well described by beta profile models, with parameters that depend on redshift and halo virial mass in a simple fashion. The fitting formulae provided here will prove useful to include ram pressure effects into semi-analytic models based on methods that lack gas physics, such as dark-matter-only simulations or the Press–Schechter formalism.Instituto de Astrofísica de La PlataFacultad de Ciencias Astronómicas y Geofísica

La calle: entretejido de fragmentos urbanos en la ciudad híbrida.

Maracaibo como ciudad portuaria, su dinámica demográfica y de crecimiento, expresa la multiculturalidad e hibridación en sus formas complejas-heterogéneas y las cambiantes dinámicas territoriales; donde la calle actúa como el escenario expresivo de las condiciones de territorialidad. El objetivo de la ponencia es evaluar el potencial de la calle como entretejido entre fragmentos urbanos predominantemente residenciales, considerando las siguientes variables: permeabilidad, interacción, porosidad, variedad, flujos, cruces y códigos genéticos. Resultando, que la calle a través del cambio de uso a comercial, manifiesta el mayor potencial para unir los fragmentos; además, se da una simbiosis entre lo que existe; y el fragmento espontáneo modela patrones de consolidación. Concluyendo, la calle expresa el reconocimiento de diferencias, dado por la territorialidad que constituye, transforma y construye el espacio urban

Selected phytochemical bioactive compounds as quorum sensing inhibitors

Bacterial infections remain an important problem for human health. The control of bacterial infections has been traditionally treated by inhibiting microbial growth using different types of antibiotics. However, the ability of different bacteria to resist the inhibitory action of antibiotics has become a global problem. In fact, there is an important need for the development of new antimicrobials that act on novel bacterial targets. Many pathogenic bacteria control their population and regulate gene expression in response to their cell population density using diffusible signalling com¬pounds. This type of communication has been referred to as “quorum sensing” (QS). This phenomenon can be essential for the synchronization of the virulence production factors, which make it an attractive therapeutic target. Therefore, the search of non-toxic compounds, which inhibit QS and so, the virulence of pathogenic bacteria can bring new alternatives for the treatment of bacterial infections in humans. In this work, we made an attempt to screen the anti-QS activity of 11 bioactive compounds extracted from fruits and vegetables using the biosensor strain, Chromobacterium violaceum. The anti-QS activity was determined quantifying the violacein production of the biosensor strain at three concentrations (50, 100 and 200 µg/ml). At least five of the tested compounds (cinnamaldehyde, pomegranate extracts, ellagic acid resveratrol and rutin) showed anti-QS activity against the biosensor strain. The obtained results showed the potential of bioactive compounds extracted from fruits and vegetables to be used as a new category of anti-pathogenic compounds against bacterial infections.Fil: Truchado , P.. Consejo Superior de Investigaciones Cientificas. Center For Research In Agricultural Genomics.; EspañaFil: Tomás Barberán, F.. Consejo Superior de Investigaciones Cientificas. Center For Research In Agricultural Genomics.; EspañaFil: Allende, A.. Consejo Superior de Investigaciones Cientificas. Center For Research In Agricultural Genomics.; EspañaFil: Ponce, Alejandra Graciela. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Departamento de Ingeniería Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentin

Dibenzothiophene removal by environmental bacteria with differential accumulation of intracellular inorganic polyphosphate

Dibenzothiophene (DBT), which belongs to the group of polycyclic aromatic heterocycles of sulfur, is a model substance to study the removal of sulfur compounds from oil due to its recalcitrance to traditional and specific removal processes. The aim of this work was to evaluate DBT bioremoval by environmental bacteria and its relationship with polyphosphate (polyP) accumulation, cell surface characteristics and bioemulsifying activity. Pseudomonas sp. P26 achieved the highest DBT removal percentage (48%) after 7 days of incubation. Moreover, positive correlations were estimated between DBT removal and bioemulsifying activity and biofilm formation. A strain-dependent relationship between the content of intracellular polyP and the presence of DBT in the culture medium was also demonstrated. The study of these bacterial characteristics, which could promote DBT transformation, is a first approach to select DBT-removing bacteria, in order to develop bioformulations that are able to contribute to desulfurization processes of petroleum-derived pollutants in the future.Fil: Lobo, Constanza Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; ArgentinaFil: Correa Deza, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; ArgentinaFil: Arnau, Gonzalo Víctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; ArgentinaFil: Ferrero, Marcela Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. YPF - Tecnología; ArgentinaFil: Juárez Tomás, María Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentin

Nucleosomes and neutrophil extracellular traps in septic and burn patients

NETosis is a host defense mechanism associated with inflammation and tissue damage. Experimental models show that platelets and von Willebrand factor (VWF) are key elements for intravascular NETosis. We determined NETosis in septic and burn patients at 1 and 4days post-admission (dpa). Nucleosomes were elevated in patients. In septics, they correlated with Human Neutrophil Elastase (HNE)-DNA complexes and SOFA score at 1dpa, and were associated with mortality. Patient´s neutrophils had spontaneous NETosis and were unresponsive to stimulation. Although platelet P-selectin and TNF-α were increased in both groups, higher platelet TLR4 expression, VWF levels and IL-6 were found in septics at 1dpa. Neither platelet activation markers nor cytokines correlated with nucleosomes or HNE-DNA. Nucleosomes could be indicators of organ damage and predictors of mortality in septic but not in burn patients. Platelet activation, VWF and cytokines do not appear to be key mediators of NETosis in these patient groups.Fil: Kaufman, Tomás. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; ArgentinaFil: Magosevich, Débora. Clínica Sagrado Corazón; ArgentinaFil: Moreno, María Carolina. Clínica Bazterrica; ArgentinaFil: Guzman, María Alejandra. Gobiernos de la Ciudad de Buenos Aires. Hospital de Quemados Dr. Arturo Umberto Illia; ArgentinaFil: D'Atri, Lina Paola. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; ArgentinaFil: Carestia, Agostina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; ArgentinaFil: Fandiño, María Eugenia. Clínica Sagrado Corazón; ArgentinaFil: Fondevila, Carlos. Clínica Bazterrica; ArgentinaFil: Schattner, Mirta Ana. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; Argentin