Steady and Stable: Numerical Investigations of Nonlinear Partial Differential Equations

Excerpt: Mathematics is a language which can describe patterns in everyday life as well as abstract concepts existing only in our minds. Patterns exist in data, functions, and sets constructed around a common theme, but the most tangible patterns are visual. Visual demonstrations can help undergraduate students connect to abstract concepts in advanced mathematical courses. The study of partial differential equations, in particular, benefits from numerical analysis and simulation

High-resolution international LOFAR observations of 4C 43.15: spectral ages and injection indices in a high-z radio galaxy

Galaxie

Reflection and the art of coaching: fostering high-performance in olympic ski cross

In preparation for the 2010 Vancouver Winter Olympic Games, the lead author engaged in systematic reflection in an attempt to implement coaching behaviours and create practice environments that promoted athlete development (psycho-social and physical performance). The research was carried out in relation to his work as head Ski Cross coach working with (primarily) three athletes in their quest for Olympic qualification and subsequent performance success in the Olympic Games. This project sought to examine coach-athlete interactions. Of particular interest were coach and athlete responses regarding the implementation of autonomy supportive coaching behaviours in a high context. Autonomy supportive coaching behaviours have previously been strongly associated with positive athlete psycho-social and performance outcomes, however, a paucity of research has examined its implementation in high-performance contexts. Through the use of participant ethnography, it was possible to gain considerable insights regarding athletes' perceptions of choice, implications of perceived athletic hierarchies, as well as cultural and experience-related influences on training and performance expectations

Raining in MKW 3 s: a Chandra-MUSE analysis of X-Ray cold filaments around 3CR 318.1

High Energy Astrophysic

The use of neutron reflectivity in determining the structure of a platinum-carbon multi-layer

The neutron reflectivity from three platinum-carbon bilayers on a silicon substrate has been measured using θ-2θ scans. The thicknesses and densities of the layers are determined and also the nature of the multi-layer-substrate interface is deduced. This is accomplished by modelling the reflectivities of different multi-layer structures and comparing them to the experimental data

Mechanical charactization of sonar window materials

The three-dimensional mechanical behavior of thick Spectra/epoxy sonar window materials containing various special materials is summarized in this report. Three different materials, which were fabricated by two companies known as `A` and `B` were received from the Naval Warfare Center. The three materials designated `A with microspheres (A micron),` `A without microspheres (A),` and `B` were measured for all properties. The total number of tests was reduced through the assumption that the two orthogonal, in-place directions were identical. Consequently, these materials should have only six independent elastic variables. The measured constants and strengths are given

International society of sport psychology position stand: mental health through occupational health and safety in high performance sport

There is considerable attention devoted to athlete mental health in high-performance sport. The International Society of Sport Psychology seeks to extend this discourse by expanding the discussion through a lens of occupational health and safety (OHS). Drawing upon knowledge from OHS, the authors have considered existing mental health challenges as well as proactive and reactive strategies conducive of athlete safety. This Position Stand is structured into four sections. The authors introduce OHS and its relevance to high-performance sport in section one. Section two focuses on athlete mental health and the need for an OHS approach within sport organisations. Section three is focused particularly on athlete safety in relation to high-performance youth athletes. The fourth and final section is a broader ideological discussion of how OHS might vary in approach based on national sport systems and cultural orientation. © 2021 International Society of Sport Psychology