Long-term effects of acoustic reafference training (ART)

In sport visual feedback is often used to enhance performance, mostly neglecting the auditory modality. However, athletes produce natural sounds when they move (acoustic reafferences) which they perceive and use to control their movements. We examined the short- and long-term effects of a training intervention on a complex movement by using acoustic reafferences. Natural step sounds produced during hurdling were recorded and played back to the participants immediately before each trial, with an increase (fast group), decrease (slow group), or no manipulation (control group) in the tempo. All groups increased their hurdling performance regarding overall running time, with the slow group showing the best performance development. After a 10-week retention, the fast and slow group further increased performance, whereas the control group declined. The repeated experience with acoustic information associated with the rhythmic pattern of hurdling may have helped developing a cognitive representation of that movement, especially regarding long-term effects.     

Planning the Future in an Uncertain Present: Postsecondary Possibilities for Accompanied Youth of Color Experiencing Homelessness

The Urban Review - Research suggests diverse experiences with homelessness can affect students’ PK-12 school success and, relatedly, postsecondary opportunities. Exploring postsecondary...     

The effect of acute caffeine ingestion on upper body anaerobic exercise and cognitive performance

Abstract

The current study examined the effect of acute caffeine ingestion on mean and peak power production during upper body Wingate test (WANT) performance, rating of perceived exertion, readiness to invest effort and cognitive performance. Using a double-blind design, 12 males undertook upper body WANTs, following ingestion of caffeine (5?mg*kg^?1) or placebo. Pre-substance ingestion, 60?mins post substance ingestion and post exercise participants completed measures of readiness to invest physical and mental effort and cognitive performance. Peak power was significantly higher (P?=?.026), fatigue index greater (P?=?.02) and rating of perceived exertion lower (P?=?.025) in the presence of caffeine. Readiness to invest physical effort was also higher (P?=?.016) in the caffeine condition irrespective of time point (pre, 60?mins post ingestion and post exercise). Response accuracy for incongruent trials on the Flanker task was superior in the presence of caffeine (P?=?.006). There was a significant substance?×?time interaction for response speed in both congruent and incongruent conditions (both P?=?.001) whereby response speeds were faster at 60?mins post ingestion and post exercise in the caffeine condition, compared to placebo. This is the first study to examine the effects of caffeine ingestion on this modality of exercise and suggests that caffeine ingestion significantly enhances peak power, readiness to invest physical effort, and cognitive performance during WANT performance.     

The integration experience of hearing impaired elementary school students in separated and integrated school settings

Integration experiences of hearing impaired German elementary school students in separate educational settings (n = 31) were compared with those of counterparts at the same level in integrated settings (n = 26), and evaluated in regard to psychosocial behavior, semantic-lexical abilities, and communicative skills. Analysis of questionnaire responses and intelligence subtests showed that the only difference between the samples concerned perceived well-being in school, and favored the integrated students. Other percentages of variance are explainable by school type (10%), parents' hearing status (12%), and use of bimodal communication (11%). The integrated students demonstrated a higher level of integration experience, associated with fewer psychosocial abnormalities and better communicative skills. The results indicate that educational setting is not the only factor influencing students' perceived well-being. Other contextual factors, e.g., hearing status of parents and communicative skills, have a similar positive impact on integration experiences     

Development and validation of a low cost blood filtration element separating plasma from undiluted whole blood

Clinical point of care testing often needs plasma instead of whole blood. As centrifugation is labor intensive and not always accessible, filtration is a more appropriate separation technique. The complexity of whole blood is such that there is still no commercially available filtration system capable of separating small sample volumes (10-100 μl) at the point of care. The microfluidics research in blood filtration is very active but to date nobody has validated a low cost device that simultaneously filtrates small samples of whole blood and reproducibly recovers clinically relevant biomarkers, and all this in a limited amount of time with undiluted raw samples. In this paper, we show first that plasma filtration from undiluted whole blood is feasible and reproducible in a low-cost microfluidic device. This novel microfluidic blood filtration element (BFE) extracts 12 μl of plasma from 100 μl of whole blood in less than 10 min. Then, we demonstrate that our device is valid for clinical studies by measuring the adsorption of interleukins through our system. This adsorption is reproducible for interleukins IL6, IL8, and IL10 but not for TNFα. Hence, our BFE is valid for clinical diagnostics with simple calibration prior to performing any measurement.     

Tackling early school leaving: Principals’ insights into Portuguese upper secondary schools

This article addresses Early School Leaving (ESL) as a phenomenon that is identified in the EU and European countries such as Portugal as being the result of school disaffection that can be associated with social and educational problems. The relevance of this problem at the European level is highlighted by the large number of European guidelines on the matter and by the inclusion of ESL as one of the main questions to be addressed by the Horizon 2020. Based on interviews, this article questions possible relationships between how principals perceive both ESL and the measures to deal with it and the culture of the school as an identity of differentia specifica (ethos). It should be emphasised that the approaches of these principals to ESL and the school‐based practices addressing it are quite diverse and relate to the ethos of the schools; students’ trajectories and the complex relationship between education and the labour market. The principals manifest their investment and implication in the provision of adequate measures for their specific contexts and see teachers and external partners as key actors.     

Discrimination and Ethnic-Racial Socialization Among Youth Adopted From South Korea Into White American Families

The current study examined how discrimination relates to adjustment outcomes in a sample of internationally, transracially adopted Korean Americans from the Minnesota Sibling Interaction and Behavior Study (N = 456 adoptees; M_age at T1 = 14.9, M_age at T2 = 18.3, M_age at T3 = 22.3). The moderating roles of ethnic socialization and preparation for bias by parents (i.e., ethnic-racial socialization) were also examined. Results indicated that discrimination predicted higher levels of depressive and externalizing symptoms in youth who reported less preparation for bias. In those experiencing more preparation for bias, associations were not significantly different from zero. Ethnic socialization did not moderate these associations. Such findings provide important information for adoptive parents regarding how to prepare their children to cope with discrimination.     

Librarians,Faculty, and the Writing Center Partnering to Build an Interdisciplinary Course: A Case Study at the University of Houston,USA

This article covers how an interdisciplinary course was developed using the expertise and resources of a history professor, the history and psychology subject librarians, and the university's writing center. The course, supported by a grant, was aimed at helping students improve their research, information literacy, and writing skills across disciplines. The article discusses the involvement of the partners from the initial planning stages to its conclusion, focusing especially on how the librarians created a library session, course-specific guide, annotated bibliography assignment and grading rubric, and how these were used as opportunities to interact with the students throughout the course. Also covered are research and writing challenges, especially for English-language learner students, and how they were addressed by all the partners. It also discusses how the librarians used this experience to seek out opportunities to create similar collaborations with other instructors, and to strengthen ties with support services on campus.     

The Politics of Policy in the McKinney–Vento Homeless Assistance Act: Setting the Agenda for Students Experiencing Homelessness

While most of the press around the Every Student Succeeds Act (ESSA) has focused on how it signals an end to No Child Left Behind, the implications of ESSA for students experiencing homelessness have been largely overlooked. Garnering organizational insights from Kingdon’s (Agendas, alternatives, and public policies, Pearson, Glenviiew, 2011) policy streams and coupling the literature with our first-hand policy experience, we present a political analysis of the McKinney–Vento Homeless Assistance Act from inception through ESSA. Our purpose is to highlight how and why the act grew stronger—and more beneficial for students experiencing homelessness—despite wide-ranging obstacles. Not only did the original policy function to alter the politics around homelessness, but key actors, events, and contexts shaped history and enabled stakeholders who were engaged in the day-to-day work to play an important role in setting the policy trajectory. Implications for stakeholders aiming to improve educational opportunities for other marginalized students are discussed.