A generic lexical URL segmentation framework for counting links,colinks or URLs

Large sets of Web page links, colinks, or URLs sometimes need to be counted or otherwise summarized by researchers to analyze Web growth or publishing. Computing professionals also use them to evaluate Web sites or optimize search engines. Despite the apparently simple nature of these types of data, many different summarization methods have been used in the past. Some of these methods may not have been optimal. This article proposes a generic lexical framework to unify and extend existing methods through abstract notions of link lists and URL lists. The approach is built upon decomposing URLs by lexical segments, such as domain names, and systematically characterizing the counting options available. In addition, counting method choice recommendations are inferred from a very general set of theoretical research assumptions. The article also offers practical advice for analyzing raw data from search engines.     

Kinematic analyses of seated throwing activities with and without an assistive pole

In Paralympic seated throwing events, the athlete can throw with and without an assistive pole. This study aimed to identify and compare performance-related kinematic variables associated with both seated throwing techniques. Twenty-nine non-disabled males (21.9 ± 2.6 years) performed 12 maximal throws using a 1-kg ball in two conditions (no-pole and pole). Automatic 3D-kinematic tracking (150 Hz) and temporal data were acquired. There was no significant difference between ball speeds at the point of release between conditions (no-pole = 12.8 ± 1.6 m/s vs. pole = 12.9 ± 1.5 m/s). There were four kinematic variables that were strongly correlated with ball speed when throwing with or without an assistive pole. These variables were elbow flexion at the start phase (pole r = .39 and no-pole r = .41), maximum shoulder external rotation angular velocity during the arm cocking phase (pole r = .42), maximum shoulder internal rotation angular velocity during the arm acceleration phase (pole r = .47), and should internal rotation angular velocity at the instant of ball release (pole r = .40). The pole clearly influenced the throwing technique with all four strongly correlated variables identified in this condition, compared to only one during the no-pole condition. When using the pole, participants produced significantly higher shoulder internal rotation angular velocities during the arm acceleration phase (pole = 367 ± 183°/s vs. no-pole = 275 ± 178°/s, p < .05) and at the instant of ball release (pole = 355 ± 115°/s vs. no-pole = 264 ± 120°/s, p < .05), compared to throwing without the pole. These findings have implications for the development of evidence-based classification systems in Paralympic seated throwing, and facilitate research that investigates the impact of impairment on seated throwing performance.     

Pre-Hispanic Music Survivals from the Canary Islands

This article discusses the evidence, mainly ethno-historical, for music and dance in the Canary Islands prior to the incorporation of the archipelago in the Crown of Castile during the fifteenth century. The survival of essential elements of pre-Hispanic music and dance is noted in some present-day dance forms, as are related customs in some of the islands’ main festivals. The relationship between pre-Hispanic dance and the Renaissance and early modern European dance, in the Canaries, is described and identified as an area for future research.     

The effect of track geometry on 200- and 400-m sprint running performance

This study looked at how the geometry of the running track affects performances in the 200- and 400 m sprint running events. Although an athletics track must be designed with two parallel straights and two curved bends, the lengths of the straights and bends are not fixed and may vary within an approved set of limits. The bend can be semi-circular or a double-curve consisting of arcs of two different radii. A mathematical model was used to calculate the effect of track geometry on race times for six different track designs; three with semi-circular bends (encompassing the extremes of the permitted designs), and the three permitted double-curve designs. The calculations revealed substantial differences among the track designs. The time difference (in the inside lane) between the fastest and slowest tracks is about 0.1 s in the 200-m race and 0.2 s in the 400-m race. The time differential between the outside and inside lanes for a double-curve track can be up to 0.08 s greater than for a standard track with semi-circular bends.     

Load and academic attainment in two business schools

In this paper the relationship between academic load (the number of modules attempted) and academic performance is investigated in a Scottish and an Australian university. An engagement approach to academic integration is employed, in which there is feedback between load and performance, and in which there is scope for diminishing returns to the study of additional modules once loads become high. The results indicate that full‐time students reduced module load in response to information on academic performance. At the Scottish business school many non‐traditional students had taken up opportunities to enter university under the UK government's drive to widen participation. In that school load reduction was undertaken at twice the rate of the Australian business school. For women, reductions from full‐time loads by one or two modules appear rational in that better average marks result. There are indications that status as a widening participation entrant, the learning and assessment environment, the funding regime and rest‐of‐life demands have influences on load reduction and on academic performance.