Improving dependency label accuracy using statistical post-editing: A cross-framework study

We present a statistical post-editing method for modifying the dependency labels in a dependency analysis. We test the method using two English datasets, three parsing systems and three labelled dependency schemes. We demonstrate how it can be used both to improve dependency label accuracy in parser output and highlight problems with and differences between constituency-to-dependency conversions

DCU-Paris13 systems for the SANCL 2012 shared task

The DCU-Paris13 team submitted three systems to the SANCL 2012 shared task on parsing English web text. The first submission, the highest ranked constituency parsing system, uses a combination of PCFG-LA product grammar parsing and self-training. In the second submission, also a constituency parsing system, the n-best lists of various parsing models are combined using an approximate sentence-level product model. The third system, the highest ranked system in the dependency parsing track, uses voting over dependency arcs to combine the output of three constituency parsing systems which have been converted to dependency trees. All systems make use of a data-normalisation component, a parser accuracy predictor and a genre classifier

Association between Medical Student Grit and United States Medical Licensing Examination Performance

Presented as Themed Oral Presentation at the 2020 IUSM Education Da

Multiple prebiotic metals mediate translation.

Today, Mg2+ is an essential cofactor with diverse structural and functional roles in life's oldest macromolecular machine, the translation system. We tested whether ancient Earth conditions (low O2, high Fe2+, and high Mn2+) can revert the ribosome to a functional ancestral state. First, SHAPE (selective 2'-hydroxyl acylation analyzed by primer extension) was used to compare the effect of Mg2+, Fe2+, and Mn2+ on the tertiary structure of rRNA. Then, we used in vitro translation reactions to test whether Fe2+ or Mn2+ could mediate protein production, and quantified ribosomal metal content. We found that (i) Mg2+, Fe2+, and Mn2+ had strikingly similar effects on rRNA folding; (ii) Fe2+ and Mn2+ can replace Mg2+ as the dominant divalent cation during translation of mRNA to functional protein; and (iii) Fe and Mn associate extensively with the ribosome. Given that the translation system originated and matured when Fe2+ and Mn2+ were abundant, these findings suggest that Fe2+ and Mn2+ played a role in early ribosomal evolution

Workshop report: Playing out transformative adaptation in Usambara, Tanzania

This report documents the information collected during the participatory workshop hosted by The CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS) in partnership with the Selian Agricultural Research Institute (SARI) and Lushoto District Office in the CCAFS site of Usambara Tanzania. This workshop was conducted as part of the CCAFS project “Playing out transformative adaptation in CCAFS benchmark sites in East-Africa: ‘When, where, how and with whom?’ which seeks to identify and understand, through integrated agricultural research, the adaptation process in the CCAFS benchmark site of Usambara, Tanzania. The workshop included farmers from various villages in the CCAFS site, who discussed agricultural practices and perceptions of climate change/variability. The workshop started off with an introduction/icebreaker, after which historical calendars, a discussion of crop suitability and baseline data and gender questions followed. Finally a vision for the future was made, in which the groups were asked to say what they would like to see in the future concerning climate change, food security and gender. The introduction/icebreaker and the general presentation of results were done in a large group but smaller groups were formed to do the historical calendars and to discuss crop suitability and baseline data as well as the gender questions. Most of the small groups were divided by gender, typically with two men’s groups and two women’s groups. In general it can be stated that the farmer is aware of a changing climate and the (negative) consequences this brings about. Furthermore there are differences in perspectives between men and women on the division of tasks and on the household decisionmaking process. Concerning the vision of the future, many farmers let us know that they would like to see more extended information and capacitation on climate change adaptation and mitigation strategies

Inter-rater reliability of cyclic and non-cyclic task assessment using the hand activity level in appliance manufacturing

This study evaluated the inter-rater reliability of the American Conference of Governmental Industrial Hygienists (ACGIH) hand activity level (HAL), an observational ergonomic assessment method used to estimate physical exposure to repetitive exertions during task performance. Video recordings of 858 cyclic and non-cyclic appliance manufacturing tasks were assessed by sixteen pairs of raters using the HAL visual-analog scale. A weighted Pearson Product Moment-Correlation Coefficient was used to evaluate the agreement between the HAL scores recorded by each rater pair, and the mean weighted correlation coefficients for cyclic and non-cyclic tasks were calculated. Results indicated that the HAL is a reliable exposure assessment method for cyclic (r-barw = 0.69) and non-cyclic work tasks (r-barw = 0.68). When the two reliability scores were compared using a two-sample Student’s t-test, no significant difference in reliability (p = 0.63) between these work task categories was found. This study demonstrated that the HAL may be a useful measure of exposure to repetitive exertions during cyclic and non-cyclic tasks. Relevance to industry: Exposure to hazardous levels of repetitive action during non-cyclic task completion has traditionally been difficult to assess using simple observational techniques. The present study suggests that ergonomists could use the HAL to reliably and easily evaluate exposures associated with some non-cyclic work tasks