This thesis offers an evaluation of the Mineral Wells, Texas high school. Fifteen hundred points associated with curriculum and school operation were evaluated to draw presented conclusions.

After approximately 25 years of using open drains in the Lewiston Area, Utah, the water table has not changed appreciably from what it was in 1921 when Hart and Adams (4) conducted their drainage investigations. It is still only about three feet below the ground surface. This is not effective drainage, meeting neither of the two primary drainage requirements of an arid or semi-arid agricultural region, namely; preventing an accumulation of excessive water within the depth of soil required for optimum growth of plant root systems, and maintaining the water table at a depth below the ground surface greater than the maximum height capillary water can rise, carrying any harmful salts that may be present in solution.

The problem of this study is to demonstrate the use of Wells's criteria for evaluating the administration of the elementary school by evaluating the administration of two elementary school principals.

For three years the writer has worked with children from a section in Mineral Wells, Texas, in which home environments were unnecessarily bad. They offered none of the wholesome stimuli for growth and development that homes should give. The houses were drab and cheerless, and the grounds were neglected, often grown up in weeds or cluttered with trash. Through its members, made up of sixth and seventh grade children of Travis Elementary School and including children from the affected homes, plans and procedures were formulated for improving homes, and the interest and cooperation of the parents were secured in extending the improvements over the area. By this plan the writer hoped that life might be made more satisfying for these people as a result of improved surroundings.

The purpose of this study was to examine the attitudes and knowledge of elementary school teachers related to nutrition and physical activity. The information will be used to develop, implement, and evaluate the school-based component of a program entitled "Operation Wellness" in Wells County, Indiana. The primary focus of this study was to determine if teachers needed further training in nutrition and physical fitness concepts and to assess their value of the inclusion of nutrition education and physical activity into their curriculum.A 58-question web-based Teachers' Physical Activity and Nutrition (TPAN) survey was adapted from an instrument created by the Montana Department of Health. The web-link for the survey was forwarded by the principals of the four elementary schools in Wells County to all 100 elementary teachers employed in the county's public schools. Sixty-four of the 100 teachers (64% response rate) responded. The number of years teaching experience ranged from 1 to 37 years. Slightly more than three-quarters (77.6%; n=42) of the teachers reported including nutrition in their curriculum; of these, 83% reported including less than 10 hours per year . Over one-third of the respondents (38%) thought they could teach nutrition, yet only 12% thought they could teach physical fitness, without any additional training. Most teachers wanted ideas to integrate nutrition (75.5%) and PE (93%) into their classroom curriculum. Over half (56%) of the teachers reported having had some type of formal nutrition training. There was no difference in the hours of nutrition education included in the curriculum by those with formal training. The majority of teachers surveyed indicated a 2-hour in-service for nutrition education and physical activity education would be the most desirable option for additional training. Findings from this study can be generalized to communities with similar demographic information to determine the potential needs of the educators. / Department of Family and Consumer Sciences

The purpose of this study was to assess the nutritional practices, physical activity level, and anthropometric measurements of students in grades 4, 6, and 8 in Wells County, IN. The sample included all students enrolled in these grades in the fall of 2002. Parental consent to complete the School Physical Activity and Nutrition (SPAN) survey used to collect food and activity practices and to measure heights and weights was obtained for 670 of the 1,248 students. Individuals were classified into weight groups using the CDC growth charts. Thirty-eight percent of all students were "at risk for overweight" or were "overweight." Students reported spending 3.3 hours of screen time per day. Males consumed more grains and legumes, and participated in more physical activities, than females. Normal weight students consumed more grains and dairy products than overweight students. There were few statistically significant differences by weight classification. Programs that encourage increasing physical activity, decreasing screen time, and making healthier food choices should be emphasized in this community. / Department of Family and Consumer Sciences

Call number: LD2668 .T4 1937 T81

Gegenstand der vorliegenden Arbeit ist die Untersuchung der Photolumineszenzdynamik von Halbleiter-Quantentöpfen (Quantum Wells), die durch Anregung von Intraband-Übergängen mittels resonanter Laserpulse im mittleren Infrarot- und Terahertz-Spektralbereich verändert wird. Diese Zweifarbenexperimente wurden mit Hilfe eines optischen Aufbaus für zeitaufgelöste Photolumineszenzspektroskopie am Großgerät Freie-Elektronen Laser FELBE am Helmholtz-Zentrum Dresden-Rossendorf realisiert. Zeitlich verzögert zur gepulsten optischen Anregung über die Bandlücke wurden Intersubband- oder Intraexziton-Übergange in den Quantum Wells resonant angeregt. Die dadurch erreichte Ladungsträgerumverteilung zeigt sich in einer deutlichen Verringerung der Photolumineszenzintensität zum Zeitpunkt des zweiten Anregepulses, die im Folgenden als Photolumineszenz-Quenching bezeichnet wird. Zunächst wird die Stärke des Photolumineszenz-Quenchings in Abhängigkeit der Polarisationsrichtung des midinfraroten Laserstrahls ausgewertet. Während die Absorption durch freie Ladungsträger für beide Polarisationsrichtungen nachweisbar ist, wird experimentell gezeigt, dass Intersubbandabsorption nur möglich ist, wenn ein Anteil der anregenden Strahlung senkrecht zur Quantum-Well-Ebene polarisiert ist. Das Photolumineszenzsignal ist überwiegend an der energetischen Position der 1s-Exzitonresonanz unterhalb der Bandkante messbar. Die intraexzitonischen Übergangsenergien in Quantum Wells liegen typischerweise im Terahertzbereich. Unter intraexzitonischer 1s-2p Anregung erscheint auch auf dieser Energieskala ein abrupter Intensitätsverlust in der langsam abklingenden Photolumineszenztransiente. Erstmalig wurde im Photolumineszenzspektrum bei höheren Energien im Abstand der Terahertz-Photonenenergie ein zusätzliches 2s-Photolumineszenzsignal detektiert. Eine detaillierte theoretische Beschreibung dieses Problems durch unsere Kooperationspartner Koch et al. von der Phillips-Universität Marburg zeigt, dass unter intraexzitonischer 1s-2p Anregung eine effiziente Coulombstreuung zwischen den nahezu entarteten exzitonischen 2p- und 2s-Zustanden stattfindet. Während der 2p-Zustand optisch dunkel ist, kann die 2s-Population strahlend rekombinieren, was zu dem besagten 2s-Photolumineszenzsignal führt. Die Zeitkonstanten der untersuchten Ladungsträgerdynamik werden durch ein phänomenologisches Modell bestimmt, das die experimentellen Kurven sehr gut abbildet. Es wird ein Ratengleichungsmodell eingeführt, bei dem die involvierten Zustände auf optisch helle und optisch dunkle Besetzungsdichten reduziert werden. Darüber hinaus werden mit einem modifizierten Versuchsaufbau die Terahertz-induzierten Photolumineszenzsignaturen von Magnetoexzitonen untersucht. Die Stärke des 1s-Photolumineszenz-Quenchings ändert sich dabei entsprechend der magnetoexzitonischen Übergänge, die im betrachteten Feldstärkebereich zwischen 0T und 7T liegen. Für Magnetfelder größer als 3T sind keine 2s-Photolumineszenzsignale mehr messbar, da durch das externe magnetische Feld die Entartung der 2p- und 2s-Zustände aufgehoben wird.

International Telemetering Conference Proceedings / October 18-21, 2004 / Town & Country Resort, San Diego, California / To enhance the production management of the rod-pumped wells in the oil field, using a high performance single-chip as the processor, a field monitor system based on GPRS is researched and developed. In the paper the hardware design and software design are expatiated, the sampling frequency and determination rules for the running state are analyzed, the rational communication protocol is designed to ensure the reliable message transmission and reduce the communication fees. In the end the field monitor system is successfully implemented and verified in practice, part of data transmission result is illustrated.

published_or_final_version / abstract / toc / Physics / Master / Master of Philosophy