Awakening vision: examining the reconceptualization of Aboriginal education in Canada via Kaupapa Māori praxis

Kaupapa Māori theory was conceptualized in the 1980s in New Zealand as a framework for revolutionizing Indigenous education. Its success marks it as a transformational praxis beneficial to educators beyond the shores of Aotearoa. This theory propounds a practical, proactive stance that enables a shift in thinking away from the psychology of de-colonization towards a “conscientization” or consciousness raising which Friere says can occur when a people take action against the oppressive elements in their lives. In this paper I provide an overview of the current state of Aboriginal education in Canada, citing examples of Canadian instructors who envisage similar self-empowering pedagogy. In addition, I highlight a Canadian case study to demonstrate the process of critical consciousness underway at a First Nations school in Aklavik, NWT, where teachers are employing Kaupapa Māori theory and culture-based curriculum for positive outcomes. This focus serves as a critical lens to educators, policy makers, and other stakeholders who might want to draw more from the transformative power of the Māori framework as counter strategy to Eurocentric curricula and colonial paradigms.     

Schulformen als differenzielle Lernmilieus Institutionelle und kompositionelle Effekte auf die Leistungsentwicklung im Fach Franz?sisch

Auf der Basis von zwei repr?sentativen Schülerstichproben der Schweizer Kantone Wallis (N = 926) und Fribourg (N = 778), die w?hrend der 8. Jahrgangsstufe im Fach Franz?sisch als Fremdsprache unterrichtet wurden, geht der vorliegende Beitrag der Frage nach, ob Schülerinnen und Schüler je nach besuchtem Bildungsgang unterschiedliche Fortschritte in der Entwicklung ihrer Fachleistungen machen. Von besonderem Interesse ist dabei, ob und in welchem Ausma? die Zusammensetzung der Schülerschaft (Kompositions-effekte) und m?glicherweise auch institutionell differierende didaktische und curriculare Angebote zwischen den Bildungsg?ngen (Institutionseffekte) als lernmilieupr?gende Faktoren von Bedeutung für die Entwicklung der Fachleistungen sind. In Mehrebenenanalysen zeigten sich auch nach Kontrolle der individuellen Eingangsvoraussetzungen (einschlie?lich des Vorwissens) bedeutsame Unterschiede in den Lernzuw?chsen an den verschiedenen Bildungsg?ngen. Die weiteren Analysen lassen darauf schlie?en, dass sowohl von kompositionellen als auch institutionellen Effekten auf die Leistungsentwicklung auszugehen ist.     

Reproducibility of upper leg EMG frequency content during cycling

Reproducibility of frequency content from surface electromyography (sEMG) signals has not been assessed and it is unknown if incremental load testing design could affect sEMG in cycling. The goals of this study were to assess the reproducibility of measures from sEMG frequency content between sessions and to compare these frequency components between a ramp and a step incremental cycling test. Eighteen cyclists performed four incremental load cycling tests to exhaustion. Two tests were performed using a step increment (load started at 100 W for 3 min followed by increments of 30 W every 3 min) and two were performed using a ramp increment (load started at 100 W for 1 min followed by increments of 30 W·min^?1). sEMG was monitored bilaterally for the rectus femoris and vastus lateralis throughout the tests and converted into overall activation (whole signal bandwidth), high- and low-frequency contents. The reproducibility of the frequency content ranged from none to strong (ICC = 0.07–0.90). Vastus lateralis activation was larger at the step compared to the ramp test (P < 0.01), without differences for rectus femoris (P = 0.22–0.91) and for the high-frequency (P = 0.28–0.95) and low-frequency contents (P = 0.13–0.94). sEMG from vastus lateralis and rectus femoris presented none to strong reproducibility. Vastus lateralis is more activated in step test design.     

Performance evaluation of the high sensitive troponin I assay on the Atellica IM analyser

IntroductionThe Fourth Universal Definition of Myocardial Infarction Global Taskforce recommends the use of high sensitive troponin (hs-Tn) assays in the diagnosis of acute myocardial infarction. We evaluated the analytical performance of the Atellica IM High-sensitivity Troponin I Assay (hs-TnI) (Siemens Healthcare Diagnostics Inc., Tarrytown, USA) and compared its performance to other hs-TnI assays (Siemens Advia Centaur, Dimension Vista, Dimension EXL, and Abbott Architect (Wiesbaden, Germany)) at one or more sites across Europe.Materials and methodsPrecision, detection limit, linearity, method comparison, and interference studies were performed according to Clinical and Laboratory Standards Institute protocols. Values in 40 healthy individuals were compared to the manufacturer’s cut-offs. Sample turnaround time (TAT) was examined.ResultsImprecision repeatability CVs were 1.1–4.7% and within-lab imprecision were 1.8–7.6% (10.0–25,000 ng/L). The limit of blank (LoB), detection (LoD), and quantitation (LoQ) aligned with the manufacturer’s values of 0.5 ng/L, 1.6 ng/L, and 2.5 ng/L, respectively. Passing-Bablok regression demonstrated good correlations between Atellica IM analyser with other systems; some minor deviations were observed. All results in healthy volunteers fell below the 99th percentile URL, and greater than 50% of each sex demonstrated values above the LoD. No interference was observed for biotin (≤ 1500 µg/L), but a slight bias at 5.0 g/L haemoglobin and 50 ng/L Tn was observed. TAT from was fast (mean time = 10.9 minutes) and reproducible (6%CV).ConclusionsReal-world analytical and TAT performance of the hs-TnI assay on the Atellica IM analyser make this assay fit for routine use in clinical laboratories.     

Schedule induction and the temporal distributions of adjunctive behavior on periodic water schedules

The ability of periodic water reinforcement schedules to induce or entrain activities was investigated by having observers classify mutually exclusive and exhaustive activities of 10 rats placed in a rich environment with various fixed-time schedules of water delivery. For each activity measured, three characteristics of induced behavior were examined: (1) its excessiveness; (2) the commonly observed inverted-U relation between rate of induced behavior and rate of reinforcement; and (3) the observation that induced activities occur earlier in interreinforcement intervals than do facultative activities, producing multimodal activity distributions. All activities were demonstrated to be noninduced, facultative activities, and none could be classified as schedule-induced behavior by any of the three criteria. The factors that determine the temporal distributions of all activities appeared to be equivalent to the factors that determine the distributions of scheduleinduced activities in situations in which only the induced activities are available.     

Embedded filming for social change: Learning about HIV/AIDS and rural development professionalism

Rural Development Professionals (RDPs) are key actors in processes of social change for people living with HIV/AIDS in rural areas. This article reports on the filming of a series of workshops and courses for RDPs in Ghana, India, Tanzania and Zambia. In this article the filming and the films are analyzed as tools for learning and social change for different audiences. Analyzing the production and consumption processes shows the interconnectedness of the filming and learning during the courses. The results indicate that the films contribute to improved rural development professionalism in the context of HIV/AIDS.     

Muscle force adaptation to changes in upper body position during seated sprint cycling

ABSTRACT

Sprint cycling performance depends upon the balance between muscle and drag forces. This study assessed the influence of upper body position on muscle forces and aerodynamics during seated sprint cycling. Thirteen competitive cyclists attended two sessions. The first session was used to determine handlebar positions to achieve pre-determined hip flexion angles (70–110° in 10° increments) using dynamic bicycle fitting. In the second session, full body kinematics and pedal forces were recorded throughout 2x6-s seated sprints at the pre-determined handlebar positions, and frontal plane images were used to determine the projected frontal area. Leg work, joint work, muscle forces and frontal area were compared at three upper body positions, being optimum (maximum leg work), optimal+10° and optimal-10° of hip flexion. Larger hip (p = 0.01–0.02) and reduced knee (p = 0.02–0.03) contribution to leg work were observed at the optimal+10° position without changes at the ankle joint (p = 0.39). No differences were observed in peak muscle forces across the three body positions (p = 0.06–0.48). Frontal area was reduced at optimum+10° of hip flexion when compared to optimum (p = 0.02) and optimum-10° (p < 0.01). These findings suggest that large changes in upper body position can influence aerodynamics and alter contributions from the knee and hip joints, without influencing peak muscle forces.     

Muscle activity and pedal force profile of triathletes during cycling to exhaustion

The purpose of this study was to analyze pedaling cadence, pedal forces, and muscle activation of triathletes during cycling to exhaustion. Fourteen triathletes were assessed at the power output level relative to their maximal oxygen uptake (355 +/- 23 W). Cadence, pedal forces, and muscle activation were analyzed during start, middle, and end test stages. Normal and tangential forces increased from the start to the end of the test (-288 +/- 33 to -352 +/- 42 N and -79 +/- 45 to -124 +/- 68 N, respectively) accompanied by a decrease in cadence (96 +/- 5 to 86 +/- 6 rpm). Muscle activation increased from the start to the middle and the end in the gluteus maximus (27 +/- 5.5% and 76 +/- 9.3%) and in the vastus lateralis (13 +/- 3.5% and 27 +/- 4.4%), similar increase was observed from the start to the end in the rectus femoris and the vastus medialis (50 +/- 9.3% and 20 +/- 5.7%, respectively). Greater normal force along with enhanced activation of knee and hip extensor muscles is linked with fatigue and declines in cadence of triathletes during cycling to exhaustion.