Implication statementFabric filter is one of the most used Particulate Matter (PM) control devices in industry. The pulse-jet cleaning system is the most used method for the cleaning of the bags, which must be carried out frequently. The flow patterns of the cleaning pulse seems to be an important parameter that must be better understood in order to improve the efficiency of industrial-scale bag filter since the center bags takes the higher share of the air volume mainly due to secondary flow.Artificial turf (AT) is common at all levels of soccer and rugby. Employing an interdisciplinary design, this study aimed to examine the extent to which the negative attitude commonly expressed by players concerning AT is based on the difference in technique between AT and natural turf (NT), or due to pre-existing biases. Thirty professional soccer and rugby players performed a defined set of movements with masked and normal perception conditions on NT and AT. Two-dimensional kinematic analysis (100 Hz) of characteristics in parallel to a psychological assessment of the impact of cognitive bias for a playing surface was assessed. No significant interaction effects between the level of perception and surface type were found. For AT, contact time (CT) was shorter across conditions, while for NT rugby players had longer CT during acceleration/deceleration phases and shorter flight times. Pre-existing negative bias against AT was found during the normal perception trials in the technology acceptance model (Usefulness and Ease of Use) and the general preference questions on how much the athlete would like to play a game on it. The results suggest that opinion was not driven by surface characteristics, but by a cognitive bias, players brought with them to the pitch.Investigating how young women disclose oral pre-exposure prophylaxis (PrEP) use is important given evidence that disclosure is associated with higher adherence. We report qualitative results on PrEP disclosure among young women in South Africa and Tanzania who participated in a PrEP demonstration project (EMPOWER).  https://www.selleckchem.com/products/gsk-lsd1-2hcl.html  In total, 81 in-depth interviews were conducted with 39 young women aged 16-24 years-25 from Johannesburg and 14 from Mwanza-at approximately 3, 6 and/or 9 months post-enrolment. Analysis of data was thematic and inductive. Most Johannesburg participants were students in the inner-city; in Mwanza, all worked in recreational venues, occasionally engaging in sexual transactions with customers. A continuum of approaches was evident. Partner disclosure was common in Johannesburg but less so in Mwanza, where many partners were feared as judgemental and potentially violent. In both sites, participants commonly disclosed to family to secure support, and to friends and work colleagues to advocate about PrEP and encourage uptake among at-risk peers. Adherence clubs appeared helpful in building participants' skills and confidence to disclose, particularly in gender-inequitable sexual relationships. PrEP counselling for young women should focus on strengthening communication skills and helping develop strategies for safe disclosure.Recent research indicates that distance running stride-to-stride variability (SSV) is related to performance and injury. Previous studies have primarily focused on stride characteristics (stride length and time). We assessed SSV for sagittal plane joint angles with the primary purpose of testing for significant differences among the lower body joints. The secondary purpose was to determine if strong correlations exist among joint SSV measures. Thirty recreational adult runners participated in the study (8 females, 22 males, 39 ± 10 years; 53.1 ± 25.7 km/week). A 6-camera motion capture system (200 Hz) collected kinematic data during treadmill running at a preferred pace. A 2 by 3 repeated measures factorial ANOVA (phase-stance, swing; joint-hip, knee, ankle) was run (p = 0.05). There was a significant interaction effect (p less then 0.001) and post hoc analysis revealed knee swing to be the most variable condition by far. For all three joints, there were strong correlations between stance and swing SSV (r = 0.80 to r = 0.88) and correlations among the joints were moderate to strong (r = 0.55 to 0.86). This study helps to better understand the joints/phases that contribute most to variability in the overall stride. Also, the strong correlations suggest that runners appear to have an overall SSV pattern that is similar across joints/phases.The aim of this research was to detangle the association between attention, working-memory (focusing on both control and capacity functions), and sport performance across athletic expertise. Specifically, the mediating effect of working-memory-control and working-memory-capacity on the attention and performance relationship will be investigated, and whether this effect differs across athlete expertise. A sample of 359 athletes (Mage = 18.91 ± SD = 1.01; 54.87% male) with a range of athletic expertise (novice n = 99, amateur n = 92, elite n = 87, and super-elite n = 81) completed a battery of neurocognitive tasks assessing attention, working-memory-control, working-memory-capacity, and a cognitively engaging motor task (e.g. basketball free-throw task). Athletes with more expertise performed better on tasks of attention, working-memory-control and working-memory-capacity. Results of structural equation modelling indicated a positive association between the cognitive measures and sport performance. Specifically, working-memory-control and working-memory-capacity mediated the attention and sport performance relationship. Additionally, invariance testing indicated larger effects for those with more athletic expertise. These findings provide a better understanding of how attention and the control and capacity functions of working-memory interact to predict performance. Theoretical and practical implications of these results are discussed.Social media is an emerging source of body-focused messages affecting young women. This research investigated the diverging cognitive and emotional effects of Pro-Anorexia (Pro-Ana) and Fitspiration content using linguistic analysis. Undergraduate college women (N = 129) viewed one of six experimentally-created blogs text or images of Fitspiration, Pro-Ana, or control (Home Décor) and completed an open-ended prompt with their reaction. Linguistic analysis on post-exposure writing suggested Fitspiration blogs produced positive emotions and social comparison processes; Pro-Ana blogs produced negative and anxious emotions. Participants' history of past disordered eating behavior qualified affective (positive emotion and anxiety), but not cognitive (social comparison) outcomes. Given the cognitive and emotional impact of viewing such media, findings speak to the need for specific content of social media sites to be addressed and discussed in the treatment and prevention of eating disorders.