Broken Promises: The Effect of Psychological Contract Violation on Student-Athlete Trust and Intentions to Leave Their Team

The purpose of this study was to examine the impact that increased perceptions psychological contract breach between student-athletes and their coaches have on student-athletes’ affective trust in their coaches, cognitive trust in their coaches, and intentions to leave their team. Based on a sample of 248 NCAA Division I and Division II student-athletes, the results reveal that increased perceptions of psychological contract breach significantly lower student-athletes’ cognitive trust in their coaches and significantly increases their intentions to leave their team. Higher levels of psychological contract violation acted as a partial mediator on the relationship between psychological contract breach and cognitive trust. Psychological contract violation also acted as a partial mediator on the relationship between psychological breach and intentions to leave. Neither perceptions of psychological contract breach nor psychological contract violation were significantly related to affective trust

Rings, Rungs, and Rugs: Harmony Hammond’s Floor Pieces and Wrapped Sculptures (1973-1984)

Harmony Hammond has spent decades making art in a range of styles, techniques, and drawing on multiple influences. One main influence could be her queer identity, which was established in the early 1970s. If this is the case, where is it evident? How did her personal life affect her artistic career? I propose that her sexual identity is directly related to the way she made art, and that the people she was associated with helped her explore this identity in her work

Knowledge-based gene expression classification via matrix factorization

Motivation: Modern machine learning methods based on matrix decomposition techniques, like independent component analysis (ICA) or non-negative matrix factorization (NMF), provide new and efficient analysis tools which are currently explored to analyze gene expression profiles. These exploratory feature extraction techniques yield expression modes (ICA) or metagenes (NMF). These extracted features are considered indicative of underlying regulatory processes. They can as well be applied to the classification of gene expression datasets by grouping samples into different categories for diagnostic purposes or group genes into functional categories for further investigation of related metabolic pathways and regulatory networks. Results: In this study we focus on unsupervised matrix factorization techniques and apply ICA and sparse NMF to microarray datasets. The latter monitor the gene expression levels of human peripheral blood cells during differentiation from monocytes to macrophages. We show that these tools are able to identify relevant signatures in the deduced component matrices and extract informative sets of marker genes from these gene expression profiles. The methods rely on the joint discriminative power of a set of marker genes rather than on single marker genes. With these sets of marker genes, corroborated by leave-one-out or random forest cross-validation, the datasets could easily be classified into related diagnostic categories. The latter correspond to either monocytes versus macrophages or healthy vs Niemann Pick C disease patients.Siemens AG, MunichDFG (Graduate College 638)DAAD (PPP Luso - Alem˜a and PPP Hispano - Alemanas

Consistent Treatment of Relativistic Effects in Electrodisintegration of the Deuteron

The influence of relativistic contributions to deuteron electrodisintegration is systematically studied in various kinematic regions of energy and momentum transfer. As theoretical framework the equation-of-motion and the unitarily equivalent S-matrix approaches are used. In a (p/M)-expansion, all leading order relativistic $\pi$-exchange contributions consistent with the Bonn OBEPQ model are included. In addition, static heavy meson exchange currents including boost terms, $\gamma\pi\rho/\omega$-currents, and $\Delta$-isobar contributions are considered. Sizeable effects from the various relativistic two-body contributions, mainly from $\pi$-exchange, have been found in inclusive form factors and exclusive structure functions for a variety of kinematic regions.Comment: 41 pages revtex including 15 postscript figure

1978: Abilene Christian College Bible Lectures - Full Text

SPIRITUALITY Being the Abilene Christian University Annual Bible Lectures 1978 Published by Abilene Christian University Book Store ACU Station Abilene, Texas 7960

Do Athletic Department Mission Statements Influence Employees’ Perceptions of Psychological Contract Fulfillment?

Mission statements are utilized by organizations to influence perceptions of key stakeholders, including employees. For more than two decades, scholars theorized mission statement content influenced employees’ psychological contract terms and perceptions of fulfillment although empirical research remained limited. Athletic department employees function to fulfill the mission of their department and host university. Utilizing a large sample of employees from National Collegiate Athletic Association athletic departments, this study explored how mission statement content influenced employees’ psychological contract terms and perceptions of fulfillment

The Impact of Psychological Contract Breach on Student-Athlete Perceived In-Role Performance and Organizational Citizenship Behaviors

Recent research has demonstrated that breached psychological contracts between student-athletes and their coaches can have negative consequences for team members (Barnhill, Czekanski, & Turner, 2013; Barnhill & Turner, 2013, 2014). While these studies are informative, they have been focused on student-athlete attitudes. The purpose of this study was to explore how psychological contracts affect student-athletes\u27 behaviors and performance. The results indicated that neither psychological contract breaches, nor psychological contract violation are significantly related to organizational citizenship behaviors or in-role performance of studentathletes. Implications and suggestions for future results are discussed

NURBS and Grid Generation

This paper provides a basic overview of NURBS and their application to numerical grid generation. Curve/surface smoothing, accelerated grid generation, and the use of NURBS in a practical grid generation system are discussed