line of the death certificate, including underlying and contributory conditions. We calculated age group specific annual mortality using midyear population estimates from the Office for National Statistics. MRSA was mentioned on 1387/6723 (20.6%) death certificates that included an ICD-9 code for staphylococcal infection (table). The percentage of certificates mentioning MRSA increased from 7.5...

BACKGROUND Web-based approaches, specifically social media sites, represent a promising approach for recruiting young gay and bisexual men for research studies. Little is known, however, about how the performance of social media advertisements (ads) used to recruit this population is affected by ad content (ie, image and text). OBJECTIVE The aim of this study was to evaluate the effects of di...

To what extend can one use Twitter in opinion polls for political elections? Merely counting Twitter messages mentioning political party names is no guarantee for obtaining good election predictions. By improving the quality of the document collection and by performing sentiment analysis, predictions based on entity counts in tweets can be considerably improved, and become nearly as good as tra...

After briefly mentioning the historical background of PLL/SRL, we examine PRISM, a logic-based modeling language, as an instance of PLL/SRL research. We first look at the distribution semantics, PRISM’s semantics, which defines a probability measure on a set of possible Herbrand models. We then mention characteristic features of PRISM as a tool for probabilistic modeling.

AIMS Several states in the U.S. have legalized cannabis for recreational or medical uses. In this context, cannabis edibles have drawn considerable attention after adverse effects were reported. This paper investigates Twitter users' perceptions concerning edibles and evaluates the association edibles-related tweeting activity and local cannabis legislation. METHODS Tweets were collected betw...

In this paper, we give some sufficient conditions under which perturbations preserve Hilbert frames and near-Riesz bases. Similar results are also extended to frame sequences, Riesz sequences and Schauder frames. It is worth mentioning that some of our perturbation conditions are quite different from those used in the previous literature on this topic.

We congratulate the authors on a paper with an exciting mix of novel theoretical insights and practical experimental testing and verification of the ideas. We provide a personal view of the developments introduced by the paper, mentioning some areas where further work might be usefully undertaken, before presenting some results assessing the generalisation performance of stability selection on ...