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Test 2014a: Case Ih Farmall 75a, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Current And Future Aac Research Considerations For Adults With Acquired Cognitive And Communication Impairments, Melanie Fried-Oken, David R. Beukelman, Karen Hux

Department of Special Education and Communication Disorders: Faculty Publications

Adults with acquired language impairments secondary to stroke, traumatic brain injury, and neurodegenerative diseases are candidates for communication supports outside of the traditional restoration-based approaches to intervention. Recent research proves repeatedly that augmentative and alternative communication (AAC) provides a means for participation, engagement, conversation, and message transfer when individuals can no longer expect full return of premorbid communication skills and that inclusion of communication supports should begin early. We discuss current research and future directions for integrated systems of technical supports that include low-technology, high tech, and partner-dependent strategies for adults with severe and chronic aphasia, cognitive-communication problems resulting from …

Communication Support For People With Als, David R. Beukelman, Susan Fager, Amy Nordness

Department of Special Education and Communication Disorders: Faculty Publications

Almost all people with amyotrophic lateral sclerosis (ALS) experience a motor speech disorder, such as dysarthria, as the disease progresses. At some point, 80 to 95% of people with ALS are unable tomeet their daily communication needs using natural speech. Unfortunately, once intelligibility begins to decrease, speech performance often deteriorates so rapidly that there is little time to implement an appropriate augmentative and alternative communication (AAC) intervention; therefore, appropriate timing of referral for AAC assessment and intervention continues to be a most important clinical decision-making issue. AAC acceptance and use have increased considerably during the past decade. Many people use …

The Influence Of Neighborhood Density And Word Frequency On Phoneme Awareness In 2nd And 4th Grades, Tiffany Hogan, Ryan P. Bowles, Hugh W. Catts, Holly L. Storkel

Department of Special Education and Communication Disorders: Faculty Publications

The purpose of this study was to test the hypothesis that two lexical characteristics – neighborhood density and word frequency – interact to influence performance on phoneme awareness tasks. Phoneme awareness was examined in a large, longitudinal dataset of 2nd and 4th grade children. Using linear logistic test model, the relation between words’ neighborhood density, word frequency, and phoneme awareness performance was examined across grades while co-varying type and place of deletion. A predicted interaction was revealed: words from dense neighborhoods or those with high frequency were more likely to yield correct phoneme awareness responses across grades. Findings support an …

The Co-Emergence Of Cognition, Language, And Speech Motor Control In Early Development: A Longitudinal Correlation Study, Ignatius S. B. Nip, Jordan R. Green, David Marx

Department of Special Education and Communication Disorders: Faculty Publications

Although the development of spoken language is dependent on the emergence of cognitive, language, and speech motor skills, knowledge about how these domains interact during the early stages of communication development is currently limited. This exploratory investigation examines the strength of associations between longitudinal changes in articulatory kinematics and development of skills in multiple domains thought to support early communication development. Twenty-four children were investigated every 3 months between the ages of 9 and 21 months. Movements of the upper lip, lower lip, and jaw were transduced using a three-dimensional motion capture system to obtain age-related changes in movement speed …

Subthalamic Nucleus Deep Brain Stimulation Changes Velopharyngeal Control In Parkinson’S Disease, Michael J. Hammer, Steven M. Barlow, Kelly E. Lyons, Rajesh Pahwa

Department of Special Education and Communication Disorders: Faculty Publications

Purpose—Adequate velopharyngeal control is essential for speech, but may be impaired in Parkinson’s disease (PD). Bilateral subthalamic nucleus deep brain stimulation (STN DBS) improves limb function in PD, but the effects on velopharyngeal control remain unknown. We tested whether STN DBS would change aerodynamic measures of velopharyngeal control, and whether these changes were correlated with limb function and stimulation settings.

Methods—Seventeen PD participants with bilateral STN DBS were tested within a morning session after a minimum of 12 h since their most recent dose of anti-PD medication. Testing occurred when STN DBS was on, and again 1 h after STN …

Feasibility Of Group Voice Therapy For Individuals With Parkinson’S Disease, Jeff Searl, Kristel Wilson, Karen Haring, Angela M. Dietsch, Kelly E. Lyons, Rajesh Pahwa

Department of Special Education and Communication Disorders: Faculty Publications

Purpose: The primary purpose was to demonstrate the feasibility of executing treatment tasks focused on increasing loudness in a group format for individuals with Parkinson’s disease (PD). A second purpose was to report preliminary pre-to-post treatment outcomes for individuals with PD immediately after they complete the group program. Methods: The group intervention is described. Fifteen adults with PD who participated in the group and three clinicians leading the group provided feedback about the execution of the intervention. The participants also provided voice samples and self-ratings of voice handicap once before completing the 8-week voice group and once immediately after completing …

A Mixed Methods Study Of How The Transition Process Impacts The Autonomy Of Pre-Service Secondary Mathematics Teachers, Linda Kasal Fusco

Department of Educational Administration: Dissertations, Theses, and Student Research

This mixed methods study sought to identify the impact that transition into the practice of teaching had on the autonomy of pre-service secondary teachers of Mathematics. It was based on the belief that a Mathematics teacher’s autonomy depended on: beliefs about Mathematics and how it was learned, reflections on the teaching practice, and social constraints of a secondary school culture. Data was collected between January 2009 and March 2010. In Phase I (Quantitative) the participants (N = 30), selected from ten State University of New York teacher preparation colleges and universities, completed five instruments to quantify the three factors of …

Women In Positions Of Influence: Exploring The Journeys Of Female Community Leaders, Mary Pflanz

Department of Educational Administration: Dissertations, Theses, and Student Research

Although the leadership norm continues to be male-oriented, more women are occupying positions of leadership in our society. The prevalent question has shifted from whether or not women can lead to how effectively they lead. To better understand the effectiveness of female community leaders, this qualitative research study explores the common features in the paths of women who have attained leadership positions. The stories of these women were derived by conducting ten interviews with women who are in positions of leadership within their communities. The interviews used open-ended questions to elicit personal responses from the interviewees, and phenomenological methods were …

On The Betti Number Of Differential Modules, Justin Devries

Department of Mathematics: Dissertations, Theses, and Student Research

Let R = k[x₁, ..., x_n] with k a field. A multi-graded differential R-module is a multi-graded R-module D with an endomorphism d such that d² = 0. This dissertation establishes a lower bound on the rank of such a differential module when the underlying R-module is free. We define the Betti number of a differential module and use it to show that when the homology ker d/im d of D is non-zero and finite dimensional over k then there is an inequality rank_R D ≥ 2ⁿ. This …