Community question answering (CQA) systems such as Yahoo! Answers allow registered-users to ask and answer questions in various question categories. However, a significant percentage of asked questions in Yahoo! Answers are unanswered. In this paper, we propose to reduce this percentage by reusing answers to past resolved questions from the site. Specifically, we propose to satisfy unanswered q...

Calcium-aluminum-rich inclusions (CAIs) preserve a record of events in the earliest solar system, the timing of these events and the conditions under which they occurred. Recent technical (analytical instrumentation) and theoretical advances have enabled researchers to extract an astonishing wealth of new information from CAIs, such as: (1) all CAIs may have formed in a restricted region or reg...

In his influential study of House members in their districts, Richard Fenno asked: “What does the representative see when he or she goes home to look at the represented?” He then followed this question by asking about the effects of a legislator’s view of his district: “How does what he or she sees affect his or her representational activity? What can we learn, from this perspective, about the ...

1.Department of Radiology, Children’s Hospital Boston and Harvard Medical School, Boston, MA, USA 2.Department of Obstetrics and Gynecology and Trent Center for Bioethics, Humanities, and History of Medicine, Duke University, Durham, NC, USA 3.Kennedy Institute of Ethics and Department of Philosophy, Georgetown University, Washington, DC, USA 4.Center for Practical Bioethics, Kansas City, MO, U...

In their recent review, Shah et al made an excellent presentation of the latest perspectives of lung volume reduction with endobronchial valves, emphasising the importance of collateral ventilation (CV) and fissure analysis on selecting proper candidates, as shown in the VENT studies. 3 The authors described representative cases of patients with positive and negative CV using the Chartis system...

Stack Overflow is a highly successful questionanswering website in the programming community, which not only provide quick solutions to programmers’ questions but also is considered as a large repository of valuable software engineering knowledge. However, despite having a very engaged and active user community, Stack Overflow currently has more than 300K unanswered questions. In this paper, we...

T he provision of enteral nutrition shortly after admission to the intensive care unit (ICU) is associated with beneficial outcomes. The development of high residual volumes frequently impedes the delivery of gastric feeding and may be associated with deleterious outcomes. 3 The most common therapeutic option for managing high gastric residual volumes is the initiation of prokinetic therapy wit...