7,726 research outputs found

    Atrofia grasa orbitaria secundaria al uso de análogos de la prostaglandina en pacientes con diagnóstico de glaucoma, manejados en el servicio de oftalmología del Hospital Militar Central de Bogotá

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    Se observaran las variables identificando la asociación que puede establecerse entre el uso crónico de análogos de la prostaglandinas en pacientes tratados por glaucoma, los cambios producidos a nivel de la grasa periorbitaria, en pacientes tratados por el servicio de glaucoma.El seguimiento se llevara a cabo por el servicio de glaucoma y oculoplástica del hospital militar central

    Service-based survey of dystonia in Munich

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    We performed a service-based epidemiological study of dystonia in Munich, Germany. Due to favourable referral and treatment patterns in the Munich area, we could provide confident data from dystonia patients seeking botulinum toxin treatment. A total of 230 patients were ascertained, of whom 188 had primary dystonia. Point prevalence ratios were estimated to be 10.1 (95% confidence interval 8.4-11.9) per 100,000 for focal and 0.3 (0.0-0.6) for generalised primary dystonia. The most common focal primary dystonias were cervical dystonia with 5.4 (4.2-6.7) and essential blepharospasm with 3.1 (2.1-4.1) per 100,000 followed by laryngeal dystonia (spasmodic dysphonia) with 1.0 (0.4-1.5) per 100,000. Copyright (C) 2002 S. Karger AG, Base

    Estudio de caso y propuestas de mejora para el establecimiento lácteo ovino Granja Alhaurín

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    Trabajo Final Integrador (Área de Consolidación Gestión de la Producción de Agroalimentos - Ingeniería Agronómica) -- UNC- Facultad de Ciencias Agropecuarias, 2023Fil: Ceballos y Spina, María. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias; Argentina.Fil: Lambir Jacobo, Ana Judith. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias; Argentina.Las leches no tradicionales en general están asociadas a economías regionales de pequeñas escalas que elaboran productos artesanales de elevado valor agregado. Los quesos elaborados a partir de estas leches de oveja, cabra o búfala, se enmarcan dentro de los llamados quesos gourmet. Estos quesos no deben comercializarse por los canales tradicionales, sino que requieren de canales especiales; son quesos que están dirigidos a un segmento del mercado con capacidad de pagar un precio superior. En el siguiente trabajo, se realiza un estudio de caso de un tambo y quesería ovina, y se plantean propuestas de mejora a modo de hacer más rentable el proceso productivo. En el mismo se analizan los componentes del establecimiento agro turístico “Granja Alhaurín”, que agrega valor a la leche producida en sus tambos, mediante la elaboración de distintos tipos de quesos, los cuales además son aprovechados en un emprendimiento gastronómico de turismo rural que funciona en el mismo establecimiento. Se pudo observar que la dieta de las ovejas estaba generando baja producción de leche, que el espacio no estaba en su máximo aprovechamiento, y que las BPM se cumplían de manera deficiente. A partir de ello, las propuestas implican: 1) aumentar el tamaño de la majada y mejorar la dieta incorporando un concentrado proteico que permita generar un incremento de 0,4 a 1 l de leche producida por oveja por día y 2) mejorar las BPM en la quesería a modo de ofrecer un producto inocuo y poder gestionar habilitaciones de tránsito federal en un futuro cercano. Por último, se llevó a cabo el análisis económico que comprueba la factibilidad de realizar dichas inversiones recuperando el dinero y generando ganancias en un período estimado de 3 años, respondiendo favorablemente a las propuestas efectuadas.Fil: Ceballos y Spina, María. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias; Argentina.Fil: Lambir Jacobo, Ana Judith. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias; Argentina

    Reconfigurable ferromagnetic liquid droplets.

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    Solid ferromagnetic materials are rigid in shape and cannot be reconfigured. Ferrofluids, although reconfigurable, are paramagnetic at room temperature and lose their magnetization when the applied magnetic field is removed. Here, we show a reversible paramagnetic-to-ferromagnetic transformation of ferrofluid droplets by the jamming of a monolayer of magnetic nanoparticles assembled at the water-oil interface. These ferromagnetic liquid droplets exhibit a finite coercivity and remanent magnetization. They can be easily reconfigured into different shapes while preserving the magnetic properties of solid ferromagnets with classic north-south dipole interactions. Their translational and rotational motions can be actuated remotely and precisely by an external magnetic field, inspiring studies on active matter, energy-dissipative assemblies, and programmable liquid constructs

    HST Observations of the Serendipitous X-ray Companion to Mrk 273: Cluster at z=0.46?

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    We have used HST I-band images to identify Mrk 273X, the very unusual high-redshift X-ray-luminous Seyfert 2 galaxy found by ROSAT in the same field-of-view as Mrk 273. We have measured the photometric properties of Mrk 273X and have also analyzed the luminosity distribution of the faint galaxy population seen in the HST image. The luminosity of the galaxy and the properties of the surrounding environment suggest that Mrk 273X is the brightest galaxy in a relatively poor cluster at a redshift near 0.46. Its off-center location in the cluster and the presence of other galaxy groupings in the HST image may indicate that this is a dynamically young cluster on the verge of merging with its neighboring clusters. We find that Mrk 273X is a bright featureless elliptical galaxy with no evidence for a disk. It follows the de Vaucouleurs (r^{1/4}) surface brightness law very well over a range of 8 magnitudes. Though the surface brightness profile does not appear to be dominated by the AGN, the galaxy has very blue colors that do appear to be produced by the AGN. Mrk 273X is most similar to the IC 5063 class of active galaxies --- a hybrid Sy 2 / powerful radio galaxy.Comment: Accepted for publication in the Astrophysical Journal. 8 pages, including 4 postscript figures. Uses emulateapj.sty and psfig.sty. Higher quality version of Figure 1 is available at http://rings.gsfc.nasa.gov/~borne/fig1-markgals.gi

    Oración funebre dedicada al Illmo. Señor Rector y Colegio Mayor de Santiago el Zebedeo ... de la Universidad de Salamanca

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    Copia digital. Valladolid : Junta de Castilla y León. Consejería de Cultura y Turismo, 2009-2010Port. con orla tip.Texto con apostillas marginales en latí

    Comparing two approaches for parsimonious vegetation modelling in semiarid regions using satellite data

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    [EN] Large portions of Earth's terrestrial surface are arid or semiarid. As in these regions, the hydrological cycle and the vegetation dynamics are tightly interconnected, a coupled modelling of these two systems is needed to fully reproduce the ecosystem behaviour. In this paper, the performance of two parsimonious dynamic vegetation models, suitable for the inclusion in operational ecohydrological models and based on well-established but different approaches, is compared in a semiarid Aleppo Pine region. The first model [water use efficiency (WUE) model] links growth to transpiration through WUE; the second model [light use efficiency (LUE) model] simulates biomass increase in relation to absorbed photosynthetically active radiation and LUE. Furthermore, an analysis of the information contained in MODIS products is presented to indicate the best vegetation indices to be used as observational verification for the models. Enhanced Vegetation Index is reported in literature to be highly correlated with leaf area index, so it is compared with modelled LAI(mod) (rWUE model = 0.45; rLUE model = 0.57). In contrast, Normalized Difference Vegetation Index appears highly linked to soil moisture, through the control exerted by this variable on chlorophyll production, and is therefore used to analyze LAI*(mod), models' output corrected by plant water stress (rWUE model = 0.62; rLUE model = 0.59). Moderate-resolution imaging spectroradiometer Leaf Area Index and evapotranspiration are found to be unrealistic in the studied area. The performance of both models in this semiarid region is found to be reasonable. However, the LUE model presents the advantages of a better performance, the possibility to be used in a wider range of climates and to have been extensively tested in literature. (C) Copyright 2014 John Wiley & Sons, Ltd.The research leading to these results has received funding from the Spanish Ministry of Economy and Competitiveness through the research projects FLOOD-MED (ref. CGL2008-06474-C02-02), SCARCE-CONSOLIDER (ref. CSD2009-00065) and ECO-TETIS (ref. CGL2011-28776-C02-01), and from the European Community's Seventh Framework Programme (FP7 2007-2013) under grant agreement no. 238366. The MODIS data were obtained through the online Data Pool at the NASA Land Processes Distributed Active Archive Centre (LP DAAC), USGS/Earth Resources Observation and Science (EROS) Centre, Sioux Falls, South Dakota (https://lpdaac.usgs.gov/get_data). The meteorological data were provided by the Spanish National Weather Agency (AEMET). The authors thank Antonio Del Campo Garcia and Maria Gonzalez Sanchis at the Universitat Politecnica de Valencia for their support and valuable comments.Pasquato, M.; Medici, C.; Friend, A.; Francés, F. (2015). Comparing two approaches for parsimonious vegetation modelling in semiarid regions using satellite data. Ecohydrology. 8(6):1024-1036. https://doi.org/10.1002/eco.1559S102410368

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    In vitro embryo rescue and plant regeneration following self-pollination with irradiated pollen in cassava (Manihot esculenta Crantz)

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    Cassava is a highly heterozygous species; hence, current methods used in classical cassava breedingcannot match the urgent need to high yielding varieties. Recently, progress was made through androgenesis and gynogenesis as pathways for raising doubled cassava haploid lines to overcome problems associated with cassava’s inherent reproductive biology, but these efforts were limited (nocandidate cassava plantlets were regenerated). For the first time, this study shows that pollen irradiation coupled with self-pollination and embryo rescue regenerated 62 candidate cassava plantlets. Plants of an elite cassava variety, Nase14, served as a mother plant and as the pollen donor for the irradiation. Irradiation dosages of 50 to 250 Gray studied across five pollination events and 300 or 500 Gray in one pollination event caused a reduction in pollen germination up to 67.0%. By 15 days after pollination (DAP) with irradiated pollen, up to 89.7% of the pollinated flowers had aborted. By embryo rescue time (42 DAP), significant differences were observed in number of fruits, seeds and embryos generated, with the non-irradiated pollen treatments having significantly higher numbers. Sixteen (16) heterozygous SSR markers in the parent and ploidy analysis showed that none of the regenerated plants was haploid or homozygous. However, the plantlets resulting from pollination with non-irradiated pollen had 56.2% homozygous loci, while progeny derived from irradiated treatments had frequencies of homozygous loci between 28.1 and 55.0%. This is the first time to use irradiated pollen in cassava as a pathway to generate candidate plantlets as an initial step in double haploid production.Key words: Cassava, doubled haploids, embryo rescue, plant regeneration, pollen germination, pollenirradiation
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