5,287 research outputs found

    Amblyopia and quality of life: a systematic review

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    Background/Aims Amblyopia is a common condition which can affect up to 5% of the general population. The health-related quality of life (HRQoL) implications of amblyopia and/or its treatment have been explored in the literature. Methods A systematic literature search was undertaken (16th-30th January 2007) to identify the HRQoL implications of amblyopia and/or its treatment. Results A total of 25 papers were included in the literature review. The HRQoL implications of amblyopia related specifically to amblyopia treatment, rather than the condition itself. These included the impact upon family life; social interactions; difficulties undertaking daily activities; and feelings and behaviour. The identified studies adopted a number of methodologies. The study populations included; children with the condition; parents of children with amblyopia; and adults who had undertaken amblyopia treatment as a child. Some studies developed their own measures of HRQoL, and others determined HRQoL through proxy measures. Conclusions The reported findings of the HRQoL implications are of importance when considering the management of cases of amblyopia. Further research is required to assess the immediate and long-term effects of amblyopia and/or its treatment upon HRQoL using a more standardised approach

    Fifteen new species of Sonoma Casey from the eastern United States and a description of the male of Sonoma tolulae (LeConte) (Coleoptera: Staphylinidae: Pselaphinae)

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    Fifteen new species of faronine pselaphines in the genus Sonoma Casey are described: S. baylessae; S. brasstownensis; S. chouljenkoi; S. cygnus; S. gilae; S. gimmeli; S. holmesi; S. mayori; S. nicholsae; S. parkorum; S. nhunguyeni; S. sokolovi; S. streptophorophallus; S. tishechkini; S. tridens. Male specimens of Sonoma tolulae (LeConte) were collected from the type locality and this species is redescribed. These species bring the total diversity of the genus to 43 species. The genus is divided into four species groups based on characters of the male genitalia. Sonoma corticina Casey was not included in the genus when it was described, thus it cannot be the type species of the genus. We here designate Sonoma tolulae (LeConte) as the type species of the genus Sonoma. A key is provided that will allow discrimination of all eastern species. Life history, habitat, and collection techniques are discussed

    Letter from the Ritz-Carlton to Robert Goelet

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    https://digitalcommons.salve.edu/goelet-personal-expenses/1232/thumbnail.jp

    Comparison of three collection techniques for capture of Coleoptera, with an emphasis on saproxylic species, in Great Smoky Mountains National Park, USA

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    Collection methods and/or habitats sampled influence how many and which species are captured during entomological surveys. Here we compare Coleoptera catches among three survey activities, each using a single collection method, at the same study sites in Great Smoky Mountains National Park, USA. Activities included: short-term flight intercept trapping (FITs); sifting/Berlese funneling of leaf litter and extremely decayed downed coarse woody debris; and using emergence chambers containing coarse woody debris of various decay classes. In total, 2472 adult beetle specimens, representing 217 lowest identifiable taxa within 164 genera and 42 families, were collected during the FIT survey. Each survey activity yielded more than 2000 specimens, and a combined total of 413 species was collected. A combination of all surveys yielded the highest species richness when normalized for number of specimens indicating that variation of habitat and/or collection method significantly increases species richness. Of single surveys the FIT survey had the highest absolute species richness (217) and the highest richness when normalized for number of specimens. Species overlap among survey activities was low (Sorensen’s quotient of similarity was 0.20–0.27), which showed that each was about equally dissimilar from all others. Overlap of catch between FITs and emergence chambers was too low to justify substitution of emergence surveys with the FIT survey protocol used when attempting to collect saproxylic Coleoptera

    International terrorism and the american dream: A dialectical fairytale

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    La construcción que hoy día se hace del terrorismo en el sistema internacional es parte de nuestros mundos de ensueño de consumo masivo confrontado con las imágenes del sueño americano. Estos mundos ideales proporcionan los discursos hegemónicos de una política paneuropea y universalista que asesina a un gran número de civiles inocentes con fines políticos, actos de terrorismo, al mismo tiempo que niega que tales actos constituyan terrorismo. La violencia utilizada se representa como un sacrificio compartido y necesario para el sueño americano, sugiriendo una unidad, de otra manera inexistente, supuestamente en “defensa propia” frente al terrorismo. En realidad, lo que se está consumando no son acciones contra el terrorismo y la guerra de agresión, sino guerra de agresión y terrorismo en sí mismos haciéndose pasar por la defensa de las comunidades imaginadas de la nación y “Occidente”. El artículo hace hincapié especialmente en los medios de comunicación y en las películas de Hollywood, incluyendo las redes sociales. El trabajo se basa en el análisis del sistema-mundo, académicos de Relaciones Internacionales y teóricos de la cultura, los medios y la comunicación para analizar los usos del terrorismo hoy en día. Al mismo tiempo, el artículo se basa en teóricos críticos y en intelectuales públicos, desde Edward Said a Judith Butler o el Papa Francisco, para criticar las oposiciones binarias y orientalistas de los discursos paneuropeos actuales sobre terrorismo internacional, de manera que queden expuestas sus complejidades y realidades, históricamente y en la actualidadToday’s framing of terrorism in the international system is part of our contemporary dreamworlds of mass consumption set against images of the American Dream. These dreamworlds provide the hegemonic discourses of a European universalist foreign policy that kills huge numbers of innocent non-combatants for political purposes, acts of terrorism, while denying that such acts constitute terrorism. The violence used is represented as a necessary and shared sacrifice for the American Dream, suggesting a unity, otherwise lacking, supposedly in “self-defense” against terrorism. In reality, what is being consumed are not actions against terrorism and aggressive war, but aggressive war and terrorism themselves masquerading as a defense of the imagined communities of the nation and “the West”. The focus of this article is especially on media and Hollywood films, including social media. The work draws on both world-systems analysis, international relations scholars, and theorists of culture, media and communication to analyze the uses of terrorism today. Simultaneously the article draws on critical theorists and public intellectuals, from Edward Said to Judith Butler to Pope Francis, to critique the binary Orientalist oppositions of today’s pan-European discourses on international terrorism, in ways that expose their complexities and realities, historically and currentl

    Extending the halo mass resolution of NN-body simulations

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    We present a scheme to extend the halo mass resolution of N-body simulations of the hierarchical clustering of dark matter. The method uses the density field of the simulation to predict the number of sub-resolution dark matter haloes expected in different regions. The technique requires as input the abundance of haloes of a given mass and their average clustering, as expressed through the linear and higher order bias factors. These quantities can be computed analytically or, more accurately, derived from a higher resolution simulation as done here. Our method can recover the abundance and clustering in real- and redshift-space of haloes with mass below 7.5×1013h1M\sim 7.5 \times 10^{13}h^{-1}M_{\odot} at z=0z=0 to better than 10%. We demonstrate the technique by applying it to an ensemble of 50 low resolution, large-volume NN-body simulations to compute the correlation function and covariance matrix of luminous red galaxies (LRGs). The limited resolution of the original simulations results in them resolving just two thirds of the LRG population. We extend the resolution of the simulations by a factor of 30 in halo mass in order to recover all LRGs. With existing simulations it is possible to generate a halo catalogue equivalent to that which would be obtained from a NN-body simulation using more than 20 trillion particles; a direct simulation of this size is likely to remain unachievable for many years. Using our method it is now feasible to build the large numbers of high-resolution large volume mock galaxy catalogues required to compute the covariance matrices necessary to analyse upcoming galaxy surveys designed to probe dark energy.Comment: 11 pages, 7 Figure

    Make It Real - Undergraduate Research Opportunities

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    Theme one in the Quest for Distinction is for VCU to become a leader among national research universities in providing all students with high quality learning/living experiences focused on inquiry, discovery, and innovation in a global environment. Quest is grounded in a commitment to providing students with a diversity of experiences which are available at a premiere public research university. The goal of this project is to take advantage of the wealth of research resources at the Medical College of Virginia Campus, coordinate cross campus efforts to facilitate the use of these resources and increase faculty participation in mentoring undergraduate research projects

    Structure of the Draco Dwarf Spheroidal Galaxy

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    This article studies the structure of the Draco dwarf spheroidal galaxy with an emphasis on the question of whether the spatial distribution of its stars has been affected by the tidal interaction with the Milky Way, using R- and V-band CCD photometry for eleven fields. The article reports coordinates for the center, a position angle of the major axis, and the ellipticity. It also reports the results of searches for asymmetries in the structure of Draco. These results, and searches for a ``break'' in the radial profile and for the presence of principal sequences of Draco in a color-magnitude diagram for regions more than 50 arcmin from the center, yield no evidence that tidal forces from the Milky Way have affected the structure of Draco.Comment: 25 pages, 11 figures, 3 tables. Accepted for publication in A
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