Science Pipelines for the Square Kilometre Array

The Square Kilometre Array (SKA) will be both the largest radio telescope ever constructed and the largest Big Data project in the known Universe. The first phase of the project will generate on the order of 5 zettabytes of data per year. A critical task for the SKA will be its ability to process data for science, which will need to be conducted by science pipelines. Together with polarization data from the LOFAR Multifrequency Snapshot Sky Survey (MSSS), we have been developing a realistic SKA-like science pipeline that can handle the large data volumes generated by LOFAR at 150 MHz. The pipeline uses task-based parallelism to image, detect sources, and perform Faraday Tomography across the entire LOFAR sky. The project thereby provides a unique opportunity to contribute to the technological development of the SKA telescope, while simultaneously enabling cutting-edge scientific results. In this paper, we provide an update on current efforts to develop a science pipeline that can enable tight constraints on the magnetised large-scale structure of the Universe.Comment: Published in Galaxies, as part of a Special Issue on The Power of Faraday Tomograph

Suited for Success? : Suits, Status, and Hybrid Masculinity

This document is the Accepted Manuscript version. The final, definitive version of this paper has been published in Men and Masculinities, March 2017, doi: https://doi.org/10.1177/1097184X17696193, published by SAGE Publishing, All rights reserved.This article analyzes the sartorial biographies of four Canadian men to explore how the suit is understood and embodied in everyday life. Each of these men varied in their subject positions—body shape, ethnicity, age, and gender identity—which allowed us to look at the influence of men’s intersectional identities on their relationship with their suits. The men in our research all understood the suit according to its most common representation in popular culture: a symbol of hegemonic masculinity. While they wore the suit to embody hegemonic masculine configurations of practice—power, status, and rationality—most of these men were simultaneously marginalized by the gender hierarchy. We explain this disjuncture by using the concept of hybrid masculinity and illustrate that changes in the style of hegemonic masculinity leave its substance intact. Our findings expand thinking about hybrid masculinity by revealing the ways subordinated masculinities appropriate and reinforce hegemonic masculinity.Peer reviewe

Large expert-curated database for benchmarking document similarity detection in biomedical literature search

Document recommendation systems for locating relevant literature have mostly relied on methods developed a decade ago. This is largely due to the lack of a large offline gold-standard benchmark of relevant documents that cover a variety of research fields such that newly developed literature search techniques can be compared, improved and translated into practice. To overcome this bottleneck, we have established the RElevant LIterature SearcH consortium consisting of more than 1500 scientists from 84 countries, who have collectively annotated the relevance of over 180 000 PubMed-listed articles with regard to their respective seed (input) article/s. The majority of annotations were contributed by highly experienced, original authors of the seed articles. The collected data cover 76% of all unique PubMed Medical Subject Headings descriptors. No systematic biases were observed across different experience levels, research fields or time spent on annotations. More importantly, annotations of the same document pairs contributed by different scientists were highly concordant. We further show that the three representative baseline methods used to generate recommended articles for evaluation (Okapi Best Matching 25, Term Frequency-Inverse Document Frequency and PubMed Related Articles) had similar overall performances. Additionally, we found that these methods each tend to produce distinct collections of recommended articles, suggesting that a hybrid method may be required to completely capture all relevant articles. The established database server located at https://relishdb.ict.griffith.edu.au is freely available for the downloading of annotation data and the blind testing of new methods. We expect that this benchmark will be useful for stimulating the development of new powerful techniques for title and title/abstract-based search engines for relevant articles in biomedical research.Peer reviewe

Connecting with Consumers in Subsistence Marketplaces: An Abstract

Research about consumers in subsistence marketplaces (Viswanathan and Sridharan 2009; Viswanathan and Rosa 2007) has grown substantially in line with interest in this market. Beyond the development literature, which has always had a focused interest in such consumers and their reactions to various development interventions, recent interest in such consumers has stemmed from the seminal work of CK Prahalad (Hart and Prahalad, 2002) on the so called bottom-of-the-pyramid, where a role for businesses in reducing poverty has been articulated. Consumers in such marketplaces seem to face a variety of constraints which affect their behavior and these are typically based around income, economic stability (e.g., high inflation), political factors (e.g., governance, political instability, legal systems) and infrastructural challenges (e.g., distribution channels, erratic electricity supply, unreliable transport). Such constraints lead to consumption behaviors that are likely to deviate from existing models where such constraints are less of an issue. A number of themes arise in the literature. One common theme is based around differences in urban and rural environments. For example, rural consumers seem to shop more frequently, form closer relationships with local retailers, spend less on technology and have fewer technological capabilities. Likewise, typical demographic variables (e.g., urban versus rural environments, age, gender) also seem to influence consumption with younger consumers having a better knowledge and capability to use technology. As might be expected, income level is a key factor in explaining consumption behavior. Other individual based factors also seem to be very important, including literacy level, which seems to affect how such individuals process information on products, packaging and advertising. For example, low-literate consumers are typically seen to process information pictographically rather than textually. Similarly, low literate consumers are more likely to be characterised by concrete information processing which suggests a focus on individual attributes rather than more abstract trade-offs between multiple attributes. Given the more typical collectivist cultures of many subsistence marketplaces such consumers are often seen to be heavily influenced by their social context and rely on a good deal of social capital to make decisions – where possible, the assistance of friends and family, for example. Social networks act as an important learning resource that consumers can draw on when needed. These social networks manifest themselves further through local opinion leaders who can also heavily influence decision making. The literature points to some interesting reactions towards price. The typical assumption is that lower prices are better, addressing the affordability constraint. However, as in economically wealthier markets prices are highly subjective and individuals have been shown to react more favorably to products and services which have a small positive price compared to when the product and service is free. Although interest in the area has increased substantially, research in the area is fragmented and spans a number of disciplines. This paper synthesizes existing knowledge about consumer behavior in subsistence marketplaces, highlights gaps and presents a future research agenda. Implications for not-for-profits and a future research agenda will be outlined

For crying out loud.

Gift of Dr. Mary Jane Esplen.Piano vocal [instrumentation]Girlies if you want a sable coat here's just what to do [first line]For crying out loud for crying out loud girlies get diamonds [first line of chorus]C major [key]Moderato [tempo]Popular song ; foxtrot [form/genre]Woman crying ; Maureen Englin (photograph) [illustration]Starmer [engraver]Publisher's advertisement on back cover [note

It was a lucky April shower, it was the most convenient door [first line of chorus]

Performance Medium: Piano, Voice and Chord

It was a lucky April shower, it was the most convenient door [first line of chorus]

Performance Medium: Piano, Voice and Chord