Digital Commons Network^™

Aerodynamic Parameter Identification Of A Venus Lander, Robert A. Sykes

Graduate Theses, Dissertations, and Problem Reports (ETD)

An analysis was conducted to identify the parameters of an aerodynamic model for a Venus lander based on experimental free-flight data. The experimental free-flight data were collected in the NASA Langley 20-ft Vertical Spin Tunnel with a 25-percent Froude-scaled model. The experimental data were classified based on the wind tunnel run type: runs where the lander model was unperturbed over the course of the run, and runs were the model was perturbed (principally in pitch, yaw, and roll) by the wind tunnel operator. The perturbations allow for data to be obtained at higher wind angles and rotation rates than those …

Meeting The Demand For Local Food In West Virginia: An Analysis Of Factors Influencing Producers' Market Participation And Expansion Decisions, Ruth Mary Oldham

Graduate Theses, Dissertations, and Problem Reports (ETD)

Increasing demand in local food markets in WV offers a new or enhanced income generation opportunity to small producers. An ostensible gap in supply to meet this demand sparks an investigation of the factors that influence producers' decisions, as reflected by their behavior and intentions, to participate and expand in local food markets. The factors that influence both the behavior of current commercial producers and potential new entrants are identified through analysis of data collected through a survey of producers identified by field professionals. Specifically, the influence of motivational and place-based sociocultural characteristics, based on guidance from social psychology Theory …

Stable And Fair Congestion Control Mechanisms For Cooperative Vehicle Safety In Vehicular Networks, Neda Nasiriani

Graduate Theses, Dissertations, and Problem Reports (ETD)

Cooperative vehicle safety (CVS) systems operate based on broadcast of vehicle position and safety information to neighboring cars. The communication medium of CVS is a Dedicated Short Range Communication (DSRC) wireless channel. One of the main challenges in large scale deployment of CVS systems is the issue of scalability. To address the scalability problem, several congestion control methods have been proposed and are currently under field study. These mechanisms adapt transmission rate and power, based on network measures such as: Channel Busy Ratio (CBR), packet reception rate and vehicles tracking error. Channel Busy Ratio (CBR) is defined as the ratio …

Subsurface Paleo-Stream Reach Reconstruction And Classification Using Seismic Data Interpretation, Benjamin Ward Dotson

Graduate Theses, Dissertations, and Problem Reports (ETD)

Incorporating the techniques and applications used in the 3D seismic geophysical interpretations with the Rosgen (1996) stream classification, this study was able to identify paleo-stream reaches in the Frio Formation within the Stratton 3D seismic data set. Hydraulic geometry variables from Rosgen's classification scheme were used to classify paleo-stream reaches shown in the seismic data. Estimated paleo-discharges were reconstructed to compare the potential magnitude of flow in the paleo-stream reaches to that in modern rivers in Texas and Mississippi. However, classification and discharge results were accompanied with a high margin of error and many uncertainties regarding the stream channel's geometry …

The Influence Of Gender On The Peer Leadership-Cohesion Relationship, Michael E. Berrebi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Research shows that a moderate to large cohesion-performance relationship exists, suggesting teams that build strong social and task cohesion are more likely to be successful. This effect has also found to be stronger in female over male teams. Peer leadership positions are somewhat overshadowed by coach positions on sport teams but can have an important influence on a team's task and social cohesion. This study investigated the influence gender has on the peer leadership-cohesion relationship. Participants were 381 NCAA Division I male and female soccer players from 67 different universities. Each participant completed questionnaires assessing team cohesion and athlete leader …

Analyzing The Impact Of Wireless Multi-Hop Networking On Vehicular Safety, Rudhir Upretee

Graduate Theses, Dissertations, and Problem Reports (ETD)

One of the core challenges of Intelligent Transportation System is the dissemination of timely and accurate vehicle information (e.g. speed, position) to geographically large distances without compromising data supply rates from immediate neighbors. This feature is critical for the design of vehicle safety and navigation applications. Single hop broadcasting is often inadequate to ensure vehicle safety when the platoon size is arbitrarily large due to its upper bound on rate and range of wireless message transmission. Existing wireless multi-hop protocols do not ensure reliable message delivery while avoiding network congestion in the shared channel. In this thesis, we make two …

Optimization Of A Coded-Modulation System With Shaped Constellation, Xingyu Xiang

Graduate Theses, Dissertations, and Problem Reports (ETD)

Conventional communication systems transmit signals that are selected from a signal constellation with uniform probability. However, information-theoretic results suggest that performance may be improved by shaping the constellation such that lower-energy signals are selected more frequently than higher-energy signals. This dissertation presents an energy efficient approach for shaping the constellations used by coded-modulation systems. The focus is on designing shaping techniques for systems that use a combination of amplitude phase shift keying (APSK) and low-density parity check (LDPC) coding. Such a combination is typical of modern satellite communications, such as the system used by the DVB-S2 standard.;The system implementation requires …

Parental Role In Educating Adolescents About Alcohol And Chemical Substances: What Is The Best Evidence?, Patricia L. Dumonceaux

Theses and Dissertations

No abstract provided.

Traditional To Evidence-Based Psychiatric Nursing Practice: Use Of The Transformative Learning Theory To Promote A Change In Psychiatric Nursing Practice, Jean M. Dahlke

Theses and Dissertations

Background: Nursing leaders, regulatory and government agencies insist nurses incorporate evidence-based nursing interventions into their practice. Nurse educators are challenged to change nurses' use of interventions from those based on tradition to those based on science. Providing adults with new infom1ation does not guarantee learners will actualize or even remember new infonnation. Objective: This ai1icle describes the use of Transformative Leaming theory as framework for an educational event to change current practice of psychiatric nurses. Design: Qualitative, descriptive surveys evaluated the effectiveness of the education to motivate learners ' change in practice. Results: Participants recognized gaps between current nursing interventions …

Multi-Group Invariance Of The Conceptions Of Assessment Scale Among University Faculty And Students, Melanie Anne Diloreto

Dissertations

Conceptions are contextual. In the realm of education, conceptions of various constituent groups are often shaped over a period of a number of years during which time these groups have participated in educational endeavors. Specifically, conceptions of assessment are influenced by beliefs, actions, attitudes, understandings, and past experiences. These conceptions can impact both teaching and learning, and ultimately student achievement. Based on the past work of Gavin T. L. Brown (2004, 2006, 2008, 2010, & 2011) and Fletcher, Meyer, Anderson, Johnston, and Rees (2011) concerning conceptions of assessment held by educators and students in environments with a low-stakes assessment culture, …

Advisor Knowledge Of Disability-Related Needs, Laws, And Accomodation Requirements In Postsecondary Academic Advisement Practices, Rebekah Elizabeth Young

Dissertations

Since the passage of the Rehabilitation Act of 1973 and the Americans with Disabilities Act in 1990, enrollment of students with disabilities in higher education has risen. In 2007-2008, approximately 11% of undergraduate students reported having some type of disability (U.S. NCES, 2012). Since disability disclosure is optional for students in higher education, it is possible that reported enrollment figures are underestimates.

Despite increasingly equitable access to postsecondary education and demonstration of the academic capability necessary for gaining collegiate admission, students with disabilities are less likely to remain enrolled and successfully earn a degree than students without disabilities. Efforts to …

Attitudinal Factors Of Teachers Regarding Arts Integration, Sara Elston Williams

Dissertations

The integration of the arts provides an enriched learning and teaching environment where teachers become facilitators of meaningful and engaging activities and lessons that increase student achievement. This study examined the attitudinal factors possessed by educators in schools who participate in the Whole Schools Initiative and those who do not. This study also reported the perceptions of arts integration by classroom teachers who participate in the Whole Schools Initiative and those who do not participate in the Whole Schools Initiative. The Teaching With the Arts Survey (TWAS) was used to determine if statistically significant differences exist on teacher attitudes, self-efficacy, …

The Journey To Becoming-Authentic From The Voices Of Nursing Students Living With Attention Deficit Hyperactivity Disorder, Sheryl Lynn Allen

Dissertations

Research and literature on nursing students living with attention deficit hyperactivity disorder (ADHD) in higher education is deficient in supporting the needs of a growing population. The aim of this study sought to uncover the essence of nursing students’ experiences through a hermeneutic phenomenological approach and promote deeper understanding of the meaning of lifeworld experiences through the lens of critical social theory (CST). CST sustains freedom from ideological restraints to allow exploration into individual experiences. The voices of student participants provide the medium for articulating meaning. An integrative approach using van Manen’s (1990) and Munhall’s (2012) methods guided this study. …

Principal Leadership Styles, Faculty Morale, And Faculty Job Satisfaction At Selected Elementary Schools, Dawn Vyola Ramsey Hearn

Dissertations

The purpose of this study was to determine if a significant relationship existed between principal leadership styles, faculty morale, and faculty job satisfaction at selected elementary schools. Specifically, the study examined if the perception teachers had of their principals‟ leadership styles had an impact on faculty morale and faculty job satisfaction of teachers in Kindergarten through sixth grade at selected elementary schools in one school district located on the Mississippi Gulf Coast. The Leadership Practices Inventory (LPI) provided data that identified the perceived leadership styles of the school principals. The Purdue Teacher Opinionnaire (PTO) provided data that identified faculty morale …

A Stylistic Analysis And Performance Guide For James Sclater's "Variations And Toccata On A Theme By Paganini", David Michael Ward

Dissertations

This document exists as a resource for understanding and performing the piano music of the American composer James Sclater. It focuses specifically on the Variations and Toccata on a Theme by Paganini (2002), his most important solo piano composition. Sclater’s extensive output includes works for orchestra, voice, opera, band, chorus, as well as compositions for soloists and chamber music.

After a brief biographical summary and some historical background for the subjects under discussion, the main portion of the study provides a stylistic analysis of Sclater’s Variations and Toccata on a Theme by Paganini, a significant and heretofore unexamined piano work …

New Fault Tolerant Multicast Routing Techniques To Enhance Distributed-Memory Systems Performance, Masoud Esmail Masoud Shaheen

Dissertations

Distributed-memory systems are a key to achieve high performance computing and the most favorable architectures used in advanced research problems. Mesh connected multicomputer are one of the most popular architectures that have been implemented in many distributed-memory systems. These systems must support communication operations efficiently to achieve good performance. The wormhole switching technique has been widely used in design of distributed-memory systems in which the packet is divided into small flits. Also, the multicast communication has been widely used in distributed-memory systems which is one source node sends the same message to several destination nodes. Fault tolerance refers to the …

Effects Of The Corrective Reading Program As An Intervention For Seventh Grade English Language Learners, Jennifer L. Robert Psyd

All Student Scholarship

The purpose of this study is to determine the effectiveness of the Corrective Reading program as an intervention for three seventh grade students who are English language learners (ELL). The effectiveness of the Corrective Reading Decoding B2 program on students’ oral reading fluency was examined. A multiple-baseline experimental design was chosen for this research to examine the effects of a direct instruction reading program with three ELL students in the seventh grade. The results indicated that all three participants met their individual goals on the AIMSweb R-CBM progress monitoring fourth grade probes. In addition, all three students’ demonstrated exceptional growth …

Outline Of Economic Analysis Of Regulatory Policy In Telecommunications Industry, Renata Śliwa

internetowy Kwartalnik Antymonopolowy i Regulacyjny (internet Quarterly on Antitrust and Regulation)

The paper presents a trial of the depicting the approach to regulatory policy through the lens of intersubject relations in the process of sectoral regulation. The divergence of aims attached to different actors/subjects in regulated sector is the fundamentals of intersubject relations. The adequate shape of the relations determines the effectiveness of regulated enterprises as well as the welfare of service consumers.

Laser Induced Fluorescence Studies Of Electrostatic Double Layers In An Expanding Helicon Plasma, Jerry Carr Jr.

Graduate Theses, Dissertations, and Problem Reports (ETD)

We report the first evidence of a laboratory double layer (DL) collapsing in the presence of an instability studied by Chakraborty Thakur et al. 1 with the use of time resolved laser induced fluorescence (LIF) studies. Higher time resolution studies then provided the first statistically validated proof of the correlation between the ion acoustic instability and a DL. Time-frequency analysis in the form of time resolved cross power spectra and continuous wavelet transforms were used to provide insight into beam formation. The implications of this work is that in the creation of strong DLs in expanding plasmas for plasma propulsion …

Atg Interviews Benjamin Shaw, Coo, Edanz, Katina Strauch, Tom Gilson

Against the Grain

No abstract provided.

Sort This Pile: Content Management Lessons From The Toy Box, Nancy Flury Carlson

Sci-Tech News

No abstract provided.

Engineering Division, Penny Sympson, Jenny Wong Welch, Laura Palumbo, Nancy Flury Carlson

Sci-Tech News

No abstract provided.

Science-Technology Division, Helen Josephine, Sarah K. Oelker, Joseph R. Kraus

Sci-Tech News

No abstract provided.

Aerospace Section, Mary Strife

Sci-Tech News

No abstract provided.

Biz Of Acq--Pda, Ebooks, Print Books Usage And Expenditures: Knowledge Ecosystem Remix, Antje Mays, Michelle Flinchbaugh

Against the Grain

No abstract provided.

Rewriting Canonical Love Stories From The Peripheries, Karen Ya-Chu Yang

CLCWeb: Comparative Literature and Culture

In her article "Rewriting Canonical Love Stories from the Peripheries" Karen Ya-Chu Yang compares postcolonial and postmodern intertextuality in Taiwanese and the Caribbean texts. Hsien-Yung Pai's "Wandering in the Garden, Waking from a Dream" (1966) and Tien-Hsin Chu's "Breakfast at Tiffany's" (1997) are two short stories which depict identity crises of first generation and second generation 外省人 (waishen gren, mainland immigrants). In these two texts disillusionment towards the center's romantic prospects is the lived reality for those compelled to accept their currently marginalized status and adopt hybrid flexibility as a practical survival strategy. In comparison, Jean Rhys in Wide Sargasso …

Publisher Profile--Edanz Group Ltd.

Against the Grain

No abstract provided.

Commercial Publisher Ebook Platforms, Cris Ferguson

Against the Grain

No abstract provided.

University Press Ebook Platforms: A Brief Overview, Mark Johnson

Against the Grain

No abstract provided.

Analyze This--Usage And Your Collection: Usage Statistics At The Point Of Need: Developing A Collaborative Eletronic Usage Statistics Program, Anita K. Foster, Kathleen Mcevoy

Against the Grain

No abstract provided.