1,115 research outputs found

    How can heat maps of indexing vocabularies be utilized for information seeking purposes?

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    The ability to browse an information space in a structured way by exploiting similarities and dissimilarities between information objects is crucial for knowledge discovery. Knowledge maps use visualizations to gain insights into the structure of large-scale information spaces, but are still far away from being applicable for searching. The paper proposes a use case for enhancing search term recommendations by heat map visualizations of co-word relation-ships taken from indexing vocabulary. By contrasting areas of different "heat" the user is enabled to indicate mainstream areas of the field in question more easily.Comment: URL workshop proceedings: http://ceur-ws.org/Vol-1311

    Assessing Educational Research -- An Information Service for Monitoring a Heterogeneous Research Field

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    The paper presents a web prototype that visualises different characteristics of research projects in the heterogeneous domain of educational research. The concept of the application derives from the project "Monitoring Educational Research" (MoBi) that aims at identifying and implementing indicators that adequately describe structural properties and dynamics of the research field. The prototype enables users to visualise data regarding different indicators, e.g. "research activity", "funding", "qualification project", "disciplinary area". Since the application is based on Semantic MediaWikitechnology it furthermore provides an easily accessible opportunity to collaboratively work on a database of research projects. Users can jointly and in a semantically controlled way enter metadata on research projects which are the basis for the computation and visualisation of indicators.Comment: 8 pages, 10 figures, Libraries in the digital age (LIDA) 2014 conferenc

    Analysis of the Heyd-Scuseria-Ernzerhof density functional parameter space

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    The Heyd-Scuseria-Ernzerhof (HSE) density functionals are popular for their ability to improve the accuracy of standard semilocal functionals such as Perdew-Burke-Ernzerhof (PBE), particularly for semiconductor band gaps. They also have a reduced computational cost compared to hybrid functionals, which results from the restriction of Fock exchange calculations to small inter-electron separations. These functionals are defined by an overall fraction of Fock exchange and a length scale for exchange screening. We systematically examine this two-parameter space to assess the performance of hybrid screened exchange (sX) functionals and to determine a balance between improving accuracy and reducing the screening length, which can further reduce computational costs. Three parameter choices emerge as useful: "sX-PBE" is an approximation to the sX-LDA screened exchange density functionals based on the local density approximation (LDA); "HSE12" minimizes the overall error over all tests performed; and "HSE12s" is a range-minimized functional that matches the overall accuracy of the existing HSE06 parameterization but reduces the Fock exchange length scale by half. Analysis of the error trends over parameter space produces useful guidance for future improvement of density functionals.Comment: 11 pages, 7 figures, accepted to the Journal of Chemical Physic

    Nihilation of femininity in the battle of looks: a Sartrean reading of Jhumpa Lahiriā€™s ā€œA temporary matterā€

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    The panoptic gaze is vested in with a constitutive impact upon the subjectivity of individuals. Feminist scholars like Luce Irigaray have charged that the metaphor of vision is intimately connected with the construction of gender and sexual difference. By pointing to the masculine logic of Western thought, Irigaray confirms that a womanā€™s entry into a dominant scopic economy signifies her inevitable confinement to passivity. This essay aims to examine the sexual politics of metaphors of vision in a literary text that is controversially argued to be a voice for the subordinated Indian immigrant women in the US. As one of the most influential schools of thought in Western philosophy, the Sartrean paradigm of sexual difference is employed to investigate this allegation by identifying the latent binary system at work in the fiction of Jhumpa Lahiri, who has garnered substantial yet controversial critical attention over her representations of gender. Specifically, this essay focuses on Lahiriā€™s prefatory story to her Pulitzer Prize-winning short story collection, Interpreter of Maladies (2000), to unravel the manner her exercise of vision in this narrative perpetuates the dichotomies of a male subject and a female object pre-established in the traditional hierarchies of gender in the West. In this story, Lahiri (un)wittingly privileges masculinity over femininity and reduces the latter to a typically disgusting Sartrean female body of holes and slime. Hence, notwithstanding infrequent emasculated images of the male subject, it is ultimately the masculine that, in the battle of looks between male and female, nihilates the Other to the state of ā€œbeing-in-itselfā€ and enjoys supremacy over the feminine

    Genetic dissection of NK cell responses

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    The association of Natural Killer (NK) cell deficiencies with disease susceptibility has established a central role for NK cells in host defence. In this context, genetic approaches have been pivotal in elucidating and characterizing the molecular mechanisms underlying NK cell function. To this end, homozygosity mapping and linkage analysis in humans have identified mutations that impact NK cell function and cause life-threatening diseases. However, several critical restrictions accompany genetic studies in humans. Studying NK cell pathophysiology in a mouse model has therefore proven a useful tool. The relevance of the mouse model is underscored by the similarities that exist between cell-structure-sensing receptors and the downstream signaling that leads to NK cell activation. In this review, we provide an overview of how human and mouse quantitative trait locis (QTLs) have facilitated the identification of genes that modulate NK cell development, recognition, and killing of target cells

    Nihilation of Femininity in the Battle of Looks: A Sartrean Reading of Jhumpa Lahiriā€™s ā€œA Temporary Matterā€

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    The panoptic gaze is vested in with a constitutive impact upon the subjectivity of individuals. Feminist scholars like Luce Irigaray have charged that the metaphor of vision is intimately connected with the construction of gender and sexual difference. By pointing to the masculine logic of Western thought, Irigaray confirms that a womanā€™s entry into a dominant scopic economy signifies her inevitable confinement to passivity. This essay aims to examine the sexual politics of metaphors of vision in a literary text that is controversially argued to be a voice for the subordinated Indian immigrant women in the US. As one of the most influential schools of thought in Western philosophy, the Sartrean paradigm of sexual difference is employed to investigate this allegation by identifying the latent binary system at work in the fiction of Jhumpa Lahiri, who has garnered substantial yet controversial critical attention over her representations of gender. Specifically, this essay focuses on Lahiriā€™s prefatory story to her Pulitzer Prize-winning short story collection, Interpreter of Maladies (2000), to unravel the manner her exercise of vision in this narrative perpetuates the dichotomies of a male subject and a female object pre-established in the traditional hierarchies of gender in the West. In this story, Lahiri (un)wittingly privileges masculinity over femininity and reduces the latter to a typically disgusting Sartrean female body of holes and slime. Hence, notwithstanding infrequent emasculated images of the male subject, it is ultimately the masculine that, in the battle of looks between male and female, nihilates the Other to the state of ā€œbeing-in-itselfā€ and enjoys supremacy over the feminine
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