Duquesne University

About: Duquesne University is a education organization based out in Pittsburgh, Pennsylvania, United States. It is known for research contribution in the topics: Population & Health care. The organization has 3615 authors who have published 7169 publications receiving 180066 citations. The organization is also known as: Duquesne University of the Holy Spirit.

The Extraordinary Ordinary Powers of Abductive Reasoning

Abstract: The psychology of cognition has been influenced by semiotic models of representation, but little work has been done relating semiotics and the process of cognition proper. In this paper, I argue that the semiotically relevant concept of abduction is crucial for this effort. Abduction is identified as the ground-state, or default, mode of cognition. As such, it deals with the issue of reasoning toward meaning and away from what Peirce called `genuine doubt'. In this fashion, abduction is shifted from being solely a logical and semiotic concept to a psychological concept. Abduction is first examined historically, and then further compared to the more traditional reasoning modes of deduction and induction to show how all three are necessary for any complete model of cognition and research into cognition. Different modes of abduction, including detection, diagnosis and divination, and different directions of abductive research in psychology are detailed.

Working within the Zone of Proximal Development: Formative Assessment as Professional Development

Abstract: (2003). Working within the Zone of Proximal Development: Formative Assessment as Professional Development. Journal of Science Teacher Education: Vol. 14, No. 1, pp. 23-48.

Ligamentum teres: a functional description and potential clinical relevance.

Abstract: The primary purpose of this study was to investigate the role the ligamentum teres has in providing hip stability using a biomechanical model. The second purpose was to review arthroscopic findings in those with a complete ligamentum teres rupture and question them regarding instability to determine how clinical findings related to the biomechanical model. A string model was created to examine ligamentum teres excursion during various hip positions. A retrospective review of 350 consecutive surgical patients identified 20 subjects with a complete ligamentum teres rupture that was not repaired at the time of surgery. The model found the ligamentum teres to have the greatest excursion when the hip was externally rotated in flexion (ER/FLEX) and internally rotated in extension (IR/EXT). During operative assessment, it was noted that all 20 subjects had laxity during dynamic impingement testing when their hip was in a position of ER/FLEX. Nine (45%) of the 20 subjects with ligamentum teres rupture were available for follow-up (mean 31 months post-op). Five out of these 9 subjects noted instability: 5 of 9 with squatting (ER/FLEX) and 4 of 9 with crossing one leg behind of the other (IR/EXT). These 5 subjects had osseous risk factors that compromised hip stability including inferior acetabular insufficiency. The ligamentum teres may contribute to hip stability when the hip is in ER/FLEX and IR/EXT. Individuals with osseous risk factors for instability, including inferior acetabular insufficiency, may have instability with squatting (ER/FLEX) and crossing one leg behind of the other (IR/EXT). IV.