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Test 1938a: Case Ih Dx 50 Also Farmall 50, 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 …

Utilizing Peer Interactions To Promote Learning Through A Web-Based Peer Assessment System, Lan Li, Allen L. Steckelberg, Sribhagyam Srinivasan

Department of Teaching, Learning, and Teacher Education: Faculty Publications

Abstract: Peer assessment is an instructional strategy in which students evaluate each other’s performance for the purpose of improving learning. Despite its accepted use in higher education, researchers and educators have reported concerns such as students’ time on task, the impact of peer pressure on the accuracy of marking, and students’ lack of ability to make critical judgments about peers’ work. This study explored student perceptions of a web-based peer assessment system. Findings conclude that web-based peer assessment can be effective in minimizing peer pressure, reducing management workload, stimulating student interactions, and enhancing student understanding of marking criteria and critical …

Babbling, Chewing, And Sucking: Oromandibular Coordination At 9 Months, Roger W. Steeve, Christopher A. Moore, Jordan R. Green, Kevin J. Reilly, Jacki Ruark Mcmurtrey

Department of Special Education and Communication Disorders: Faculty Publications

Purpose: The ontogeny of mandibular control is important for understanding the general neurophysiologic development for speech and alimentary behaviors. Prior investigations suggest that mandibular control is organized distinctively across speech and nonspeech tasks in 15-month-olds and adults and that, with development, these extant forms of motor control primarily undergo refinement and rescaling. The present investigation was designed to evaluate whether these coordinative infrastructures for alimentary behaviors and speech are evident during the earliest period of their co-occurrence.
Method: Electromyographic (EMG) signals were obtained from the mandibular muscle groups of 15 typically developing 9-month-old children during sucking, chewing, and speech.
Results: …

Migraine-Associated Vestibulopathy, Julie A. Honaker, Ravi N. Samy

Department of Special Education and Communication Disorders: Faculty Publications

Purpose of review: In the past few years, otologists have been seeing an increasing number of patients with vestibular disorders due to migraine- associated vestibulopathy. This article reviews some of the latest developments in the understanding of this disease process, specifically its incidence, symptoms, diagnosis, and treatment.
Recent findings: Migraine-associated vestibular symptoms may include episodic true vertigo, movement-provoked dysequilibrium, imbalance/unsteadiness, and complaints of lightheadedness. The pathophysiology of migraine-associated vestibulopathy is not completely understood; however, both peripheral and central deficits have been observed. Although the International Headache Society classification does not include migraine-associated vestibulopathy as a subclassification of migraine, there is …

Pacifier Stiffness Alters The Dynamics Of The Suck Central Pattern Generator, Emily Zimmerman, Steven M. Barlow

Department of Special Education and Communication Disorders: Faculty Publications

Variation in pacifier stiffness on non-nutritive suck (NNS) dynamics was examined among infants born prematurely with a history of respiratory distress syndrome. Three types of silicone pacifiers used in the NICU were tested for stiffness, revealing the Super Soothie™ nipple is 7 times stiffer than the Wee™ or Soothie™ pacifiers even though shape and displaced volume are identical. Suck dynamics among 20 preterm infants were subsequently sampled using the Soothie™ and Super Soothie™ pacifiers during follow-up at approximately 3 months of age. ANOVA revealed significant differences in NNS cycles/min, NNS amplitude, NNS cycles/burst, and NNS cycle periods as a function …

Respiratory Distress Syndrome Degrades The Fine Structure Of The Non-Nutritive Suck In Preterm Infants, Susan Stumm, Steven M. Barlow, Meredith Estep, Jaehoon Lee, Susan Cannon, Joy Carlson, Donald Finan

Department of Special Education and Communication Disorders: Faculty Publications

Aims and Objectives—Suck development is a challenging hurdle for preterm infants who endure an extensive oxygen history due to respiratory distress syndrome (RDS). The fine structure of the non-nutritive suck (NNS) was studied in preterm infants according to RDS severity.

Design and Methods—Recordings of NNS were completed cribside in the neonatal intensive care unit (NICU) in 55 preterm infants distributed among one healthy control group and two RDS infant groups. NNS pressure amplitude (cmH₂0) and within-burst suck cycle period (ms) were the dependent measures extracted from digitized records of pacifier nipple compression pressure.

Results and Conclusions—RDS preterm infants …

Respiratory Treatment History Predicts Suck Pattern Stability In Preterm Infants, Meredith Poore, Steven M. Barlow, Jingyan Wang, Mereditch Estep, Jaehoon Lee

Department of Special Education and Communication Disorders: Faculty Publications

Sensory deprivation and motor restriction associated with extensive oxygen therapy may lead to poor oromotor control in preterm infants. Non-nutritive suck is one of the first complex oromotor behaviors infants perform. This study determined the spatiotemporal variability of non-nutritive suck (NNS) pressure trajectories in three preterm groups with differing oxygen histories—one control group with minimal or no O₂ therapy, and two Respiratory Distress Syndrome (RDS) groups with either a mild/moderate (RDS1) or moderate/severe (RDS2) O₂ history. The Non-nutritive Suck Spatiotemporal Index (NNS STI) quantifies spatial and temporal variability across kinematic trajectories, and was calculated from digital representations of …

Regional Volumetric Change Of The Tongue During Mastication In Pigs, Z. J. Liu, B. Yamamura, V. Shcherbatyy, Jordan R. Green

Department of Special Education and Communication Disorders: Faculty Publications

Structure and movement of the tongue have been studied extensively, but little study has been carried on its 3D deformation and ensuing volumetric changes during various functions. The purpose of this study is to investigate the volumetric changes of a regional section of the tongue during feeding. Four 12-week-old Yucatan miniature pigs were used. During natural mastication and water drinking, the width, length, thickness and volumetric changes were measured using six implanted ultrasonic crystals, which circumscribed a wedge-shaped volume in the region of the tongue body. Jaw movements were videotaped and digitized. Signals from these two sources were synchronized to …

Non-Nutritive Suck Parameter In Preterm Infants With Rds, Meredith Estep, Steven M. Barlow, Rajesh Vantipalli, Donald Finan, Jaehoon Lee

Department of Special Education and Communication Disorders: Faculty Publications

Objective—To characterize the integrity of non-nutritive suck (NNS) parameters among three groups of preterm infants ranging from normal to those with progressive degrees of respiratory distress syndrome (RDS).

Study Design—NNS compression waveforms were sampled from 55 infants in the neonatal intensive care unit using a silicone pacifier electronically instrumented for intraluminal pressure. Seven select NNS parameters were measured at two different sessions, and statistically analyzed using a General Linear Model Analysis of Covariance.

Results and Conclusions—Preterm infants with a more extensive history of RDS and oxygen therapy manifest significantly (p≤0.001) degraded performance on six of the seven NNS measures. This …

Short-Term Memory, Working Memory, And Executive Functioning In Preschoolers: Longitudinal Predictors Of Mathematical Achievement At Age 7 Years, Rebecca Bull, Kimberly Andrews Espy, Sandra A. Wiebe

Department of Educational Psychology: Faculty Publications

This study examined whether measures of short-term memory, working memory, and executive functioning in preschool children predict later proficiency in academic achievement at 7 years of age (third year of primary school). Children were tested in preschool (M age = 4 years, 6 months) on a battery of cognitive measures, and mathematics and reading outcomes (from standardized, norm-referenced school-based assessments) were taken on entry to primary school, and at the end of the first and third year of primary school. Growth curve analyses examined predictors of math and reading achievement across the duration of the study and revealed that …

Dian Xing Xiang Guan Fen Xi Zai Zhong Guo Qing Shao Nian Jian Kang Xing Wei Ying Xiang Yin Su Tan Tao Zhong De Ying Yong [Multi-Factor Influences On Chinese Youth Health Behaviors: Canonical Correlation Analysis On Data From The Global School-Based Health Survey], Teresa M. Merrick, Ying Zhang, Ian Newman, Duane F. Shell, L. Qian

Department of Educational Psychology: Faculty Publications

Objective: To explore interrelationships among conceptually related groups of health behaviors in Chinese youth using the multivariate technique of canonical correlation to provide a multi-dimensional view of the component variables.

Methods: Responses on health behaviors from the 2003 Global School-Based Student Health Survey(GSHS) in China were grouped into four conceptual categories-health risks, psychological, behavior, and environmental and analyzed through canonical correlation using SPSS 13.0.

Results: Negative psychological state is reflected by high level incidence of being lonely, being worried, being depressed, considering suicide, and planning how to attempt suicide, while healthy behavior by low tobacco use, alcohol use, sedentary behavior …

Anabolic Androgenic Steroids: Use And Perceived Use In Non-Athlete College Students, Joseph M. Berning, Kent J. Adams, Mark Debeliso, Bryant A. Stamford, Ian Newman

Department of Educational Psychology: Faculty Publications

Objective: The authors investigated the use and perceived use of anabolic androgenic steroids (AAS) among nonathlete college students. Participants: The authors surveyed a sample of 485 nonathlete college students at a major metropolitan university. Methods: They administered a survey on use and perceived use of AAS to the students. Results: Forty-two participants (9%) reported using AAS (37 men, 5 women). Seniors were the most likely to use AAS (36%), and freshman the least likely (7%). Thirty-four percent of nonusers and 41% of users indicated they knew between 1 and 5 AAS users. Of the total sample, 36% perceived that 5% …

Preparation And Opportunity, Marilyn Grady

Department of Educational Administration: Faculty Publications

Following is the text of the speech I delivered as the recipient of the 2008 Living Legends Award at the annual meeting of the National Council of Professors of Educational Administration in San Diego. The truth is, I've acquired a certain taste for anonymity when I speak to groups. Unfortunately, in this room this evening, I may not have that luxury. I expect I will not be able to embellish as many details tonight. I get to talk this evening because I have stood in the same spot long enough to have observed a few aspects of being a professor …