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Pritchard Shipyard Kaolin Pipe Analysis, Geoffrey R. Hughes Jul 2004

Pritchard Shipyard Kaolin Pipe Analysis, Geoffrey R. Hughes

Publications

This report analyzes fragments of Kaolin tobacco pipes recovered at the Pritchard Shipyard archaeological site (38CH1049) in an attempt to assess the site’s stratigraphic integrity. Kaolin tobacco pipes, as a class of archaeological material has the potential to address this question because of their temporal attribute: the direct relationship between bore diameter to manufacturing period. As a result, tobacco pipes offer insight into the following questions: 1) When was the site’s earliest possible occupation? 2) On average, what were the most intensive occupational periods? 3) What was the site’s maximum possible occupational range? 4) To what extent is the site’s …


A Longitudinal Analysis Of Socioeconomic Differences In Obesity And Weight Change During The Early Adult Years, Young-Taek Kim May 2004

A Longitudinal Analysis Of Socioeconomic Differences In Obesity And Weight Change During The Early Adult Years, Young-Taek Kim

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Obesity has reached epidemic proportions in American society. However, not enough attention has been given to weight change by temporal and dynamic detailed social characteristics, controlled for unobserved heterogeneities nested in county and state. Using the National Longitudinal Survey Youth (NLSY79), this study examined weight change and its development into unhealthy conditions like being overweight or obese, in relation to change in social characteristics including life course events. This study also examined the social characteristics of remaining at a normal weight through all time intervals over a 19-year period. Using hierarchical linear multilevel analysis, this study found that changes in …


An Analysis Of Bilingual Programs In The Context Of A Schoolwide Reading Program, Jonathan A. Stewart May 2004

An Analysis Of Bilingual Programs In The Context Of A Schoolwide Reading Program, Jonathan A. Stewart

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There has been much controversy over the effectiveness of bilingual education in helping English language learning (ELL) students to become successful students. One variable overlooked in this literature has been the use of effective instruction in these programs. This investigation compared students in a schoolwide reading program that utilizes research-based practices, Success for All (SFA) and its Spanish counterpart Éxito Para Todos (EPT). Three groups of third-grade students were compared at 8-week intervals throughout the school year: English-speaking students in SFA, ELL (English language learning) students in SFA with ESL (English as a Second Language), and ELL students in EPT. …


An Activity Theory Analysis Of A Case Of It-Driven Organisational Change, Wannapa Suratmethakul, Helen Hasan Jan 2004

An Activity Theory Analysis Of A Case Of It-Driven Organisational Change, Wannapa Suratmethakul, Helen Hasan

Faculty of Commerce - Papers (Archive)

The paper describes unexpected problems encountered in the automation of a scheduling process using an IT application already in use in other similar organisations. A grounded theory approach was used to collect and categorise data on the case. Activity Theory was then used to analyse the attempt by management to implement organisational change through the introduction of the system. The findings suggest that it is inadvisable to impose organisational change through the introduction of a complex IT system, particularly when this disrupts entrenched decision-making processes of the organisation.


Analysis Of The Mechanism By Which Calcium Negatively Regulates The Tyrosine Phosphorylation Cascade Associated With Sperm Capacitation, Mark Baker, Louise Hethrington, Heath W. Ecroyd, Shaun D. Roman, Robert J. Aitken Jan 2004

Analysis Of The Mechanism By Which Calcium Negatively Regulates The Tyrosine Phosphorylation Cascade Associated With Sperm Capacitation, Mark Baker, Louise Hethrington, Heath W. Ecroyd, Shaun D. Roman, Robert J. Aitken

Faculty of Science - Papers (Archive)

The capacitation of mammalian spermatozoa involves the activation of a cAMP-mediated signal transduction pathway that drives tyrosine phosphorylation via mechanisms that are unique to this cell type. Controversy surrounds the impact of extracellular calcium on this process, with positive and negative effects being recorded in independent publications. We clearly demonstrate that the presence of calcium in the external medium decreases tyrosine phosphorylation in both human and mouse spermatozoa. Under these conditions, a rise in intracellular pH was recorded, however, this event was not responsible for the observed changes in phosphotyrosine expression. Rather, the impact of calcium on tyrosine phosphorylation in …


Finite-Element Analysis To Determine Effect Of Monolimb Flexibility On Structural Strength And Interaction Between Residual Limb And Prosthetic Socket, Winson Lee, Ming Zhang, David A. Boone, Bill Contoyannis Jan 2004

Finite-Element Analysis To Determine Effect Of Monolimb Flexibility On Structural Strength And Interaction Between Residual Limb And Prosthetic Socket, Winson Lee, Ming Zhang, David A. Boone, Bill Contoyannis

Faculty of Engineering and Information Sciences - Papers: Part A

Monolimb refers to a kind of transtibial prostheses having the socket and shank molded into one piece of thermoplastic material. One of its characteristics is that the shank is made of a material that can deform during walking, which can simulate ankle joint motion to some extent. Changes in shank geometry can alter the stress distribution within the monolimb and at the residual limb-socket interface and, respectively, affect the deformability and structural integrity of the prosthesis and comfort perceived by amputees. This paper describes the development of a finite-element model for the study of the structural behavior of monolimbs with …


Using Transcendental Phenomenology To Explore The “Ripple Effect” In A Leadership Mentoring Program, Tammy Moerer-Urdahl, John W. Creswell Jan 2004

Using Transcendental Phenomenology To Explore The “Ripple Effect” In A Leadership Mentoring Program, Tammy Moerer-Urdahl, John W. Creswell

Department of Educational Psychology: Faculty Publications

Several approaches exist for organizing and analyzing data in a phenomenological qualitative study. Transcendental phenomenology, based on principles identified by Husserl (1931) and translated into a qualitative method by Moustakas (1994), holds promise as a viable procedure for phenomenological research. However, to best understand the approach to transcendental phenomenology, the procedures need to be illustrated by a qualitative study that employs this approach. This article first discusses the procedures for organizing and analyzing data according to Moustakas (1994). Then it illustrates each step in the data analysis procedure of transcendental phenomenology using a study of reinvestment or the “ripple effect” …