Network Analysis with the Enron Email Corpus

We use the Enron email corpus to study relationships in a network by applying six different measures of centrality. Our results came out of an in-semester undergraduate research seminar. The Enron corpus is well suited to statistical analyses at all levels of undergraduate education. Through this note's focus on centrality, students can explore the dependence of statistical models on initial assumptions and the interplay between centrality measures and hierarchical ranking, and they can use completed studies as springboards for future research. The Enron corpus also presents opportunities for research into many other areas of analysis, including social networks, clustering, and natural language processing.Comment: in Journal of Statistics Education, Volume 23, Number 2, 201

Gut biogeography of the bacterial microbiota

Animals assemble and maintain a diverse but host-specific gut microbial community. In addition to characteristic microbial compositions along the longitudinal axis of the intestines, discrete bacterial communities form in microhabitats, such as the gut lumen, colonic mucus layers and colonic crypts. In this Review, we examine how the spatial distribution of symbiotic bacteria among physical niches in the gut affects the development and maintenance of a resilient microbial ecosystem. We consider novel hypotheses for how nutrient selection, immune activation and other mechanisms control the biogeography of bacteria in the gut, and we discuss the relevance of this spatial heterogeneity to health and disease

Performance of postlinguistically deaf cochlear implant patients on the connected speech test (version 3)

This paper discusses a study on postlingual cochlear implantees and the effectiveness of the CST in evaluating enhancement of speech recognition abilities

Variasi Temperatur Pencampuran Terhadap Parameter Marshall Pada Campuran Lapis Aspal Beton

This study was conducted to determine the effect of temperature variations on the mixing processof the asphalt concrete AC-WC (Asphalt Concrete-Wearing Course) subtle gradations in themiddle limit and lower limit of the Marshall parameters with reference to specifications of BinaMarga, 2010.From the results of experiments conducted that the optimum asphalt content is used to middle limitusing a asphalt content of 5,7% and 6,8% for the lower limit after that mixing was done usingtemperature variation of 120 o C, 130 o C, 140 o C, 150 o C, and 160 o C.To a mixture of Laston AC-WC subtle gradations middle limit grading 5,7% asphalt contentmixing temperature using a temperature of 120 o C, 130 o C, 140 o C, 150 o C, 160 o C and still meet allstandards of marshall parameters. Ideal mixing temperature variations in the middle limit ofmixing temperature 150 o C-160 o C. While the lower limit to the level of 6,8% asphalt contentmixing temperatures between 120 o C-160 o C did not meet the specifications, because the MQ valuebelow the minimum value of 250 kg / mm

Seismic resilience of road bridges: lessons learned from the 14 November 2016 Kaikoura Earthquake

ABSTRACT: The 14th of November 2016 Kaikōura Earthquake sequence has highly affected the transport infrastructure in New Zealand. From the perspective of life-safety, the overall bridge performance was satisfactory; however, based on the observed undesirable sub-system performance of the damaged bridges, further investigation into possible improvements of the current design philosophy was warranted. This paper describes the structural performance of the most severely damaged bridges during the Kaikōura Earthquake. The study is based on observations made during site inspections, on subsequent computational analyses performed and on a functionality database collected during the period following the event. The paper also introduces resilience indicators as a tool to predict the lifecycle performance and functionality of bridges. Finally, conclusions on the resilience and functionality of the bridges in the aftermath of the earthquake are raised, highlighting the main performance issues and suggesting strategies and technologies to enhance their seismic resilience during future events

French translation and validation of the Jefferson Scale of Empathy - Health Professions Student version

Background: Background: Jefferson Scale of Empathy is one of the most widely used tools worldwide to assess empathy. The extended version for Health Professions Students (JSE HPS) has not yet been translated into French. Objective: The aim of our study was to translate the JSE HPS into French and assess the psychometric properties of this new version (JSE HPS Fr). Methods: The JSE HPS was translated according to international recommendations. The main psychometric qualities (test-retest reliability, internal consistency, floor and ceiling effects and construct validity) were studied in a sample of physiotherapy students. Participants provided general information (age, gender, year of study) and completed the JSE HPS Fr and the Questionnaire of Cognitive and Affective Empathy (QCAE). Participants were also asked to complete the JSE-HPS-Fr again one week later to assess its test-retest reliability. Results: 408 students (161 males and 247 females; mean age: 21.3 years) participated. The JSE HPS Fr demonstrated good test-retest reliability for the total score (ICC=0.81) and good internal consistency (α Cronbach: 0.79). The JSE HPS also showed good convergent validity with the QCAE questionnaire (r=0.41, p<0.05). No floor or ceiling effects were observed. Conclusions: The results indicate that the JSE HPS Fr is a valid and reliable tool to assess the level of empathy of French-speaking physiotherapy students