8,225 research outputs found
Multi-faith spaces at UK universities display two very different visions of public religion
Multi-faith spaces display and influence the state of public religion at UK universities. In the past decade the vast majority of university managers have adopted multi-faith policies. In most cases these reflect a growing engagement with religious identity and practice. But in a few cases the creation of multi-faith spaces corresponded with clashes between students of different faiths, student protests and negative media coverage about campus relations. How could the same policy have such different results? Jonathan D Smith suggests that the difference can be found in how university managers approach religion on campus, illustrated by two different approaches to accommodating Islamic prayer
Invited commentary on Stewart and Davis " 'Big data' in mental health research-current status and emerging possibilities"
No abstract available
Protostellar Feedback Processes and the Mass of the First Stars
We review theoretical models of Population III.1 star formation, focusing on
the protostellar feedback processes that are expected to terminate accretion
and thus set the mass of these stars. We discuss how dark matter annihilation
may modify this standard feedback scenario. Then, under the assumption that
dark matter annihilation is unimportant, we predict the mass of stars forming
in 12 cosmological minihalos produced in independent numerical simulations.
This allows us to make a simple estimate of the Pop III.1 initial mass function
and how it may evolve with redshift.Comment: 6 pages, Proceedings of 'The First Stars and Galaxies: Challenges for
the Next Decade", Austin, TX, March 8-11, 201
Loops and quasigroups: Aspects of current work and prospects for the future
summary:This paper gives a brief survey of certain recently developing aspects of the study of loops and quasigroups, focussing on some of the areas that appear to exhibit the best prospects for subsequent research and for applications both inside and outside mathematics
Developing Open Source Software using Version Control Systems: An Introduction to the Git Language for Documenting Your Computational Research
Version control systems track the history of code as it is committed (saved) by any number of developers. Have you made a coding error and cannot debug it? Version control systems allow for resetting code back to when it worked, and show what code has changed since previous commits.
The contents of this lecture provide an introduction to the git version control language, GitHub for cloud hosting open source code repositories, and tutorials that demonstrate common and useful git and GitHub practices. This lecture is intended to be coupled with a discussion on creating reproducible computational research.The zipped folder contains: 1. pre-meeting software installation instructions, 2. references for discussion on reproducibility, coding best practices, and legal issues, and 3. slideshow with tutorial. Commands needed for the tutorial are in the slide notes. Links to additional video tutorials are provided in a slide.
Combined, the presentation + reproducibility discussion + tutorial are designed to take about 50 minutes to complete. If used in a course, the tutorial information on the hidden slides could be used as part of a student assignment
The impact of a high versus a low glycaemic index breakfast cereal meal on verbal episodic memory in healthy adolescents
In this study, healthy adolescents consumed a) a low glycaemic index (G.I.) breakfast cereal meal, or b) a high G.I. breakfast cereal meal, before completing a test of verbal episodic memory in which the memory materials were encoded under conditions of divided attention. Analysis of remembering/forgetting indices revealed that the High G.I. breakfast group remembered significantly more items relative to the Low G.I. breakfast group after a long delay. The superior performance observed in the High G.I. group, relative to the Low G.I. group, may be due to the additional glucose availability provided by the high G.I. meal at the time of memory encoding. This increased glucose availability may be necessary for effective encoding under dual task conditions
Testing use of mitochondrial COI sequences for the identification and phylogenetic analysis of New Zealand caddisflies (Trichoptera)
We tested the hypothesis that cytochrome c oxidase subunit 1 (COI) sequences would successfully discriminate recognised species of New Zealand caddisflies. We further examined whether phylogenetic analyses, based on the COI locus, could recover currently recognised superfamilies and suborders. COI sequences were obtained from 105 individuals representing 61 species and all 16 families of Trichoptera known from New Zealand. No sequence sharing was observed between members of different species, and congeneric species showed from 2.3 to 19.5% divergence. Sequence divergence among members of a species was typically low (mean = 0.7%; range 0.0–8.5%), but two species showed intraspecific divergences in excess of 2%. Phylogenetic reconstructions based on COI were largely congruent with previous conclusions based on morphology, although the sequence data did not support placement of the purse-cased caddisflies (Hydroptilidae) within the uncased caddisflies, and, in particular, the Rhyacophiloidea. We conclude that sequence variation in the COI gene locus is an effective tool for the identification of New Zealand caddisfly species, and can provide preliminary phylogenetic inferences. Further research is needed to ascertain the significance of the few instances of high intra-specific divergence and to determine if any instances of sequence sharing will be detected with larger sample sizes
Effect of silver content on the structure and antibacterial activity of silver-doped phosphate-based glasses
Staphylococcus aureus can cause a range of diseases, such as osteomyelitis, as well as colonize implanted medical devices. In most instances the organism forms biofilms that not only are resistant to the body's defense mechanisms but also display decreased susceptibilities to antibiotics. In the present study, we have examined the effect of increasing silver contents in phosphate-based glasses to prevent the formation of S. aureus biofilms. Silver was found to be an effective bactericidal agent against S. aureus biofilms, and the rate of silver ion release (0.42 to 1.22 µg·mm–2·h–1) from phosphate-based glass was found to account for the variation in its bactericidal effect. Analysis of biofilms by confocal microscopy indicated that they consisted of an upper layer of viable bacteria together with a layer (20 µm) of nonviable cells on the glass surface. Our results showed that regardless of the silver contents in these glasses (10, 15, or 20 mol%) the silver exists in its +1 oxidation state, which is known to be a highly effective bactericidal agent compared to that of silver in other oxidation states (+2 or +3). Analysis of the glasses by 31P nuclear magnetic resonance imaging and high-energy X-ray diffraction showed that it is the structural rearrangement of the phosphate network that is responsible for the variation in silver ion release and the associated bactericidal effectiveness. Thus, an understanding of the glass structure is important in interpreting the in vitro data and also has important clinical implications for the potential use of the phosphate-based glasses in orthopedic applications to deliver silver ions to combat S. aureus biofilm infections
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