A Comparison of High-Intensity Power Training and Graded Treadmill Exercise

The purpose of this study was to investigate acute blood lactate concentration, heart rate, blood pressure, and rating of perceived exertion following two different types of exercise: a high intensity power training exercise test and a graded treadmill exercise test. The hypothesis was that the HIPT exercise test would yield higher levels of blood lactate, heart rate, blood pressure, and RPE, immediately post exercise when compared to a graded treadmill exercise test. Ten college-aged participants with a body mass index /m2, blood pressure \u3c140/90 mmHg, no overt cardiovascular disease, no cardiovascular medications, and no use of tobacco products were included in the study. All participants had a general fitness and training level that allowed them to perform the exercise bouts without any hesitation. Subjects participated in two exercise sessions on separate occasions. A graded treadmill exercise test occurred with the subjects walking on the treadmill until the self-stated desire to stop or until five stages of increased speed and intensity had occurred. In the second meeting, subjects completed a prescribed high-intensity power training exercise test. Heart rate (HR), rating of perceived exertion (RPE), blood pressure (BP), and blood lactate concentration were all obtained before and immediately following each training session, as well as immediately following each stage of the graded treadmill exercise test. Oxygen uptake was obtained during the graded treadmill exercise test. After both tests were conducted, the high intensity power training exercise test showed a higher percentage of blood lactate concentration at its conclusion when compared to the graded treadmill exercise test with lower final average values BP, HR and RPE. In conclusion HIPT exercise yields higher blood lactate concentrations compared to graded treadmill exercise with a lower blood pressure, heart rate, and perceived exertion

Meritocracy of middle school mathematics placement

This study measured the impact of race and gender on merit in placement in the advanced mathematics track at the beginning of 6th grade and is a middle school replication of Stone's (1995) research on high school math placement. The placement process was meritocratic if neither race nor gender nor their combination impacted student placement in the advanced track. The sample for this study included 51,413 9th grade students in 2010-11 from across the state of North Carolina who had a 70% or better projection for success in algebra I in 8th grade as they entered 6th grade in 2007-08. Success was defined as scoring level III or IV on the North Carolina End of Course test. A logistic regression model was used to analyze the data. Data analysis revealed that, after controlling for prior achievement, race was a significant factor. Asian, Black, Hispanic and Multi-Racial students had greater odds of being placed in the advanced track than White students, while American Indian students had lesser odds compared to White students. In addition, gender was also a significant factor in the placement of students in the advanced track in middle school, with the odds of female students being placed in the advanced track greater than for male students. Therefore, the mathematics placement process was not based on merit alone. The findings of this study complicate previous literature that suggests minority students have less access to rigorous curriculum in schools. An additional logistic regression was completed without controlling for prior achievement, demonstrating that odds of all races other than Asian being placed in the advanced mathematics track in middle school were lower than for White students. These results together suggest meritocracy does not exist in mathematics placement, with demographic factors such as race and gender influencing placement in varied ways. Recommendations for education leaders include a need to understand issues related to meritocratic fairness in the mathematics placement process and to actively work to eliminate achievement gaps that impact preparation for rigorous opportunities for students

Procedural learning and consciousness in a finite state grammar task

Thesis (B.S) in Psychology--University of Illinois at Urbana-Champaign, 1992.Includes bibliographical references (leaves 49-53)Microfiche of typescript. [Urbana, Ill.]: Photographic Services, University of Illinois, U of I Library, [1992]. 2 microfiches (70 frames): negative.s 1992 ilu n

Improvement of a Low-cost DIY Wave Gauge

The impacts of waves on shorelines and nearshore ecosystems has highlighted the need for extension and other environmental professionals to have access to accurate and affordable wave measurements. The development of a low-cost DIY wave gauge improved the accessibility of these measurements; however, the original design was limited in battery life. Here, an improved version of the low-cost DIY wave gauge, the DIY Feather Wave Gauge, is presented with the same performance, longer battery life, smaller design, and cheaper cost along with tutorials, parts lists, and other resources. This new gauge has been used to improve shoreline management recommendations

Optical Polarization and Spectral Variability in the M87 Jet

During the last decade, M87's jet has been the site of an extraordinary variability event, with one knot (HST-1) increasing by over a factor 100 in brightness. Variability was also seen on timescales of months in the nuclear flux. Here we discuss the optical-UV polarization and spectral variability of these components, which show vastly different behavior. HST-1 shows a highly significant correlation between flux and polarization, with P increasing from $\sim 20$ at minimum to >40% at maximum, while the orientation of its electric vector stayed constant. HST-1's optical-UV spectrum is very hard ($\alpha_{UV-O}\sim0.5$, $F_\nu\propto\nu^{-\alpha}$), and displays "hard lags" during epochs 2004.9-2005.5, including the peak of the flare, with soft lags at later epochs. We interpret the behavior of HST-1 as enhanced particle acceleration in a shock, with cooling from both particle aging and the relaxation of the compression. We set 2$\sigma$ upper limits of $0.5 \delta$ parsecs and 1.02$c$ on the size and advance speed of the flaring region. The slight deviation of the electric vector orientation from the jet PA, makes it likely that on smaller scales the flaring region has either a double or twisted structure. By contrast, the nucleus displays much more rapid variability, with a highly variable electric vector orientation and 'looping' in the $(I,P)$ plane. The nucleus has a much steeper spectrum ($\alpha_{UV-O} \sim 1.5$) but does not show UV-optical spectral variability. Its behavior can be interpreted as either a helical distortion to a steady jet or a shock propagating through a helical jet.Comment: 14 pages, 7 figures, ApJ, in pres