The effects of exercise in hypoxic and normoxic conditions on endothelin-1 and arterial compliance

The purpose of this study was to determine the effects of short-term normoxic and hypoxic exercise on plasma endothelin-1 and nitric oxide levels, and the relationship of arterial compliance and pulmonary artery pressure to endothelin-1. Seven endurance-trained males completed two incremental and two steady-state exercise tests performed at ventilatory threshold in normoxia and hypoxia (fraction of inspired oxygen = 0.14). Plasma endothelin-1was measured throughout steady-state tests. Arterial compliance using applanation tonometry, plasma nitric oxide and pulmonary artery pressure using Doppler echocardiography were measured before and after exercise. Small arterial compliance and pulmonary artery pressure significantly increased following exercise. There were no main effects of condition or time for plasma endothelin-1and nitric oxide levels. There were no significant relationships between plasma endothelin-1 and arterial compliance or pulmonary artery pressure. In conclusion, mechanisms other than the endothelial system may play a role in the exercise-induced changes in small artery compliance in this study population. Moderate hypoxia and a 30-minute steady-state exercise have limited effects on plasma endothelin-1 in endurance-trained males.     

Making it work: teachers’ perspectives on inclusion

This qualitative study was designed to investigate teachers’ perceptions of the impact of inclusion of children with special needs on their classes. Twenty participants were randomly selected from the 25 teachers who had volunteered for the study. These teacher participants completed a survey which was composed of 62 items dealing with attitudes and perceptions, incentives for encouraging inclusion, and concerns from a classroom perspective. From these 20 participants, five teachers were then randomly selected for interviews. Findings revealed that some of the teachers’ primary concerns were planning time, meeting the needs of all students, and ongoing professional development to respond effectively to the increasingly diverse needs of students in the classroom.     

Human Resource Development and Personnel in a Post-Katrina/Rita Environment

This article provides a pre- and post-Katrina snapshot of issues in the human resource arena with emphasis on resilience, persistence, and the overwhelming need for effective planning.     

Promoting Completion Through Organizational Development and Process Improvement

In 2007, Tulsa Community College (TCC) joined the national Achieving the Dream (ATD) network, which is dedicated to developing data-informed interventions to increase persistence and completion among community college students. TCC’s participation in the national initiative set it down a path for positive institutional change, but it was the College’s restructuring of their internal work teams and their process improvements since 2011–2012 that have resulted in a sustainable system that will help retain knowledge and ensure successful leadership transitions. In 2013, TCC rebranded its modified ATD system as Completing the Dream, combining the goals of Complete College America with the action research principles of Achieving the Dream. Because of these efforts, the College is in a stronger position today than it has ever been to serve our students using evidence-based strategies, ultimately resulting in more college-educated citizens in the Tulsa area.     

Analyses of Dual Credit in Rural Eastern Colorado

The purpose of this study was to analyze the available data on dual credit programs at 29 high schools served through five college centers of one community college over a time span of nine years. This is the first study completed in Colorado examining the PSEO (Post Secondary Enrollment Options) Act that allows dual credit programs funded by the state. It investigates the variables associated with student access and selection. The results of the study suggest that the purpose of the legislation is being met. Nearly all of the selected high schools provide some dual credit courses to eligible high school students. The data also indicated that there is a strong relationship between distance education among schools linked by networks and the rate of participation.