Digital Commons Network^™

Knowledge Server Toolkit: Perl-Based Automation Tools , David Mclean

Small Satellite Conference

A Perl Inference Engine (PIE), A Plan Executor (APE), and a Centroid Classifier (CCL) are described within the infrastructure provided by the Knowledge Server Toolkit (KST) environment. All these tools are implemented as Perl modules so that user's applications can easily use their capabilities. This technology was developed at NASA Goddard Space Flight Center under a task that was looking into languages and tools that are useful for automating satellite ground control systems. However, because these tools are modularized and knowledge driven, this technology should be generally applicable to many fields. After a background description, the Knowledge Representation (KR) and …

Optical Tracking Telemetry And Commanding (Tt&C) For Small Satellites , Michael Enoch, Sabrina Herrin, Lt. Col. Roberta Ewart, Dennis Mansell

Small Satellite Conference

This paper presents information on the current state of technology and potential subsystem and operational concepts to allow the use of low power optical communication systems to perform tracking, telemetry and commanding (IT &C) for small satellites. The mantra of 'smaller, faster, better (& cheaper)' has been realized, at least partially, for many aspects of small satellite design, construction and operations. Most small spacecraft systems have become smaller, lighter and more power efficient while offering greater performance. Unfortunately, one area that has not followed this general trend is IT &C. In many ways, this situation takes on greater significance due …

Evaluating Small Satellites: Is The Risk Worth It?, Todd Mosher, Robert Bitten, Norman Lao, Eric Mahr, Riaz Musani

Small Satellite Conference

"Faster, Better, Cheaper - pick any two" say critics of NASA's current approach to scientific satellites. As proof, they point to the recent failed or impaired small science satellites: Lewis (failed shortly after reaching orbit), Clark (cancelled before leaving the ground), NEAR (trajectory altered due to engine shutdown) and WIRE (failure resulting in depletion of cryogen). Although the space industry has greatly increased their utilization of small satellites to conduct space activities, the question remains, Is Faster, Better, Cheaper (FBC) yielding a good return on investment? This paper takes a historical look at traditional science missions either flown or started …

Solar Terrestrial Relations Observatory (Stereo) Mission And Concept Of Operations, Glen Baer, John Eichstedt, Daniel Ossing

Small Satellite Conference

The Solar Terrestrial Relations Observatory (STEREO) is a new NASA mission designed to increase the understanding of the origin and consequences of coronal mass ejections (CMEs). The mission will consist of two identical spacecraft at approximately lAU from the Sun: one drifting ahead of the Earth and one behind. Simultaneous image pairs will be obtained by the spacecraft at gradually increasing angular separations over the course of the 2-year mission. The spacecraft launch date is scheduled for 2003. The concept of operations for this mission consists of independent and decoupled instrument and spacecraft bus operations. The Science Operations Teams will …

Sunsat - Launch And First Six Month's Orbital Performance, Garth Milne, A. Schoonwinkel, J.J. Du Plessis, S. Mostert, W.H. Steyn, K Vd Westhuizen, D.A. Vd Merwe, H. Grobler, J.A. Koekemoer, N. Steenkamp

Small Satellite Conference

South Africa's first satellite, SUNSAT, has been operating in orbit since a NASA-sponsored launch on the USA Air Force P91-1 Argos Delta II mission on February 23, 1999. SUNSAT is a graduate studentdeveloped satellite from the University of Stellenbosch in South Africa, and includes a NASA GPS receiver for occultation research, laser reflectors, magnetometers, star cameras, Amateur Radio communications, and a 15-m resolution, 3456 pixel, 3-band, stereo-capable push broom imager. SUNSAT is controlled from the University, and most functions were operating in June 1999. Live PAL TV earth images are received well at Stellenbosch on a 4.5 m diameter antenna, …

Mightysat I: In Space, Capt. Barbara Braun, Robert Davis, Thomas Itchkawich, Todd Goforth

Small Satellite Conference

MightySat is a United States Air Force (USAF) Research Laboratory multi-mission, small satellite program dedicated to providing frequent, inexpensive, on-orbit demonstrations of high-payoff space system technologies. MightySat I, the 140lb pathfmder satellite of the MightySat series, was ejected from the Space Shuttle Endeavor on the 15th of December, 1998. Contact with the satellite was established one hour after ejection, and MightySat I has been performing robustly on-orbit ever since. This paper provides an overview of the MightySat I satellite and its experiments: a lightweight composite structure, high-efficiency solar panels, low-power microelectronics, low-shock release devices, and micro-particle impact detectors. The design, …

Natural Resources Conservation Laws: A Report On 17 States And Their Selected Counties And Townships, Huong N. Tran, Liu-Hsiung Chuang, Carolyne L. Guss, Resource Economics And Social Sciences Division, Natural Resources Conservation Service, U.S. Department Of Agriculture

All U.S. Government Documents (Utah Regional Depository)

Laws are social institutions that guide social functions, declare social programs, and even project the visions of a governed society. In a democracy like the United States of America, laws exist at every level of government. Federal, state, and local agencies that have related missions work together as partners, and their staffs need to understand the legal requirements and limitations to better serve the constituents. Private citizens can also benefit from being aware of the laws of other jurisdictions that might serve as models for improving their laws and regulations. With this awareness the public spirit can be enhanced and …

Natural Resources Conservation Laws A Report On 17 States And Their Selected Counties And Townships, Huong N. Tran, Liu-Hsiung Chuang, Carolyne L. Guss, Resource Economics And Social Sciences Division, Natural Resources Conservation Service, U.S. Department Of Agriculture

All U.S. Government Documents (Utah Regional Depository)

Laws are social institutions that guide social functions, declare social programs, and even project the visions of a governed society. In a democracy like the United States of America, laws exist at every level of government. Federal, state, and local agencies that have related missions work together as partners, and their staffs need to understand the legal requirements and limitations to better serve the constituents. Private citizens can also benefit from being aware of the laws of other jurisdictions that might serve as models for improving their laws and regulations. With this awareness the public spirit can be enhanced and …

Synecology And Disturbance Regimes Of Sagebrush Steppe Ecosystems, Neil E. West

Wildland Resources Faculty Publications

The pre-Columbian mixed-growth form, composition, and structure of sagebrush steppes was mostly due to the highly variable semiarid climate and long fire-free intervals. The weak stability of this relatively complex vegetation was easily upset by excessive livestock grazing, especially in drought periods. After a few decades of uncontrolled livestock grazing, it was easy for introduced winter annuals, especially cheatgrass, to dominate the understory and alter the fire regime to larger, more frequent fires that occur earlier in the year. Accelerated soil erosion has caused many sites to lose the potential for management back toward native perennial dominance by controlling only …

Final Environmental Impact Statement: Ferron Natural Gas Project, United States Department Of The Interior, Bureau Of Land Management, Utah, Usda Forest Service, Utah Division Of Oil, Gas, And Mining

Elusive Documents

Anadarko Petroleum Corporation, Chandler and Associates, LLC, and Texaco Exploration and Production, Inc. propose to develop two separate areas northeast and southwest of Price, Utah and extract natural gas. Questar Pipeline Company proposes to develop a new natural gas transmission pipeline as part of the Proposed Action. With the pipeline corridor, the Proposed Action encompasses a total of about 111 ,781 acres. The developments would involve drilling a maximum of 285 natural gas wells on Federal, State and private lands, constructing roads and gathering pipelines for natural gas and produced water, drilling wells for disposing of produced water, and construction …

The Deseret Ranch: An Environmental History, Shawna Morrissey

Utah Space Grant Consortium

This paper outlines the project I am undertaking for my thesis. My thesis will examine the ecological history of the Deseret Land and Livestock Ranch. It will integrate quantitative and qualitative data to interpret a century of environmental change. While my research focuses on the period from 1891 to the present, it will also briefly review the long-term natural history of the region. This thesis will provide an opportunity to integrate traditional historical sources with new technologies. I will apply Geographic Information Systems (GIS) and Remote Sensing technology to graphically chart environmental change. These innovative historical sources, in addition to …

An Analysis Of Pyramidal Image Fusion Techniques, T. R. Meek

Utah Space Grant Consortium

This paper discusses the application of multiresolution image fusion techniques to synthetic aperture radar (SAR) and Landsat imagery. Results were acquired through the development and application of image fusion software to test images. The test images were fused using six image fusion techniques that are the combinations from three types of image decomposition algorithms (ratio of low pass [RoLP] pyramids, gradient pyramids, and morphological pyramids) and two types of fusion algorithms (selection and hybrid selection and averaging). Based upon test results, this study concludes that: small details in city areas make morphological pyramids ineffective, selection forms of fusion do not …

Insights, Spring, 1999, Utah State University

Discovery Magazine

Bi-annual alumni newsletter for the College of Science of Utah State University in Logan.

Estimating Total Body Fat In Sharp-Shinned And Cooper's Hawks: Techniques And Application, John P. Delong

Biology

I evaluated the use of three direct methods (fat scoring, condition indices, and multiple regression of external morphological variables) and one indirect method to estimate total body fat (TBF) in Sharp-shinned Hawks (Accipiter striatus) and Cooper's Hawks (A. cooperii). All three direct methods explained a reasonable amount of variation in actual TBF values (r² ≥ 0.82), and all three methods required the use of four equations to account for the categories of species, age, and sex. Indirect methods are those that predict lean mass and subtract the lean mass estimate from the actual body …

Latin American Immigrants' Perceptions Of Discrimination And Acquisition Of English As A Second Language As A Result Of Using A Community Social Support Center, Holly Mcfarland

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The associations between Latin American immigrants' use of a community social support center and perceived discrimination and language acquisition were investigated. All variables were measured by respondents' self-reports on a questionnaire designed to obtain demographic data as well as describe the needs of the Latin American community in rural Northern Utah. Chi-square analyses indicated a statistically significant association between use of the center and acquisition of English as a second language. No relationship was found between use of the center and perceived discrimination. The results of this study provide valuable demographic data as well as describe some of the experiences …

4-H Summer Camp Program For Youth-At-Risk, Carol A. Daniels

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

To grow up healthy, young people need support, love, and encouragement from caring, principled adults. They need homes, schools, congregations, and communities that are accepting, affirming, and safe (Roehlkepartain , 1997). Youth and Families with Promise (YFP), a mentoring program for youth-at-risk sponsored by Utah State University Extension, is one such community endeavor. The YFP program is offered as a community service with the goal of increasing social, emotional, family, and educational assets of youth between the ages of 8-14. The program is designed to improve the youth's chances of success and to increase their ability to become and remain …

Uptake And Transformation Of Trichloroethylene By Hybrid Poplar: Laboratory Studies, Julie K. Chard

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Trichloroethylene (TCE) was widely used as an industrial solvent and degreasing agent for most of the twentieth century. It is now a widespread groundwater contaminant. Phytoremediation may be a cost-effective cleanup method for TCE-contaminated soils and groundwater. Studies of environmental TCE fate are complicated by its volatility. The literature reports both significant and insignificant plant uptake of TCE. Conflicting findings may be due to differences in exposure level, conditions, and duration of the studies, or to experimental artifacts from laboratory systems.

This research quantified plant uptake and volatilization of TCE using a unique laboratory system. Hybrid poplar trees were exposed …

Prevalence And Possible Causes Of Vitamin B-6 Deficiency Among Women In The Philippines, Siew Sun Wong

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Recently maternal intake of multivitamins has been associated with a reduced risk of orofacial clefts (OFC) in human epidemiologic studies. In the Philippines, vitamin B-6 deficiency was found to be associated with increased risk of OFCs. The birth prevalence of OFCs in the Philippines is among the highest known, but Filipino emigrants in the United States have lower rates, indicating that environmental factors may play an important role in causing OFCs in the Philippines.

The prevalence and possible causes of vitamin B-6 deficiency were investigated through dietary and biochemical assessments in case-control study in Negros Occidental, Philippines. Mothers with OFC …

Temperament, Attachment, And Parenting Stress In Infancy: Relations To Social Competence Of Second Graders, Gina A. Cook

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The importance of social competence in children's development has been recognized, and evidence has been found that children who are socially incompetent are at risk for academic problems. Yet the influences that may be involved from infancy, such as temperament and attachment, have not been explored longitudinally. The purpose of this study was to investigate the influence of infant temperament characteristics on later social development and to explore the idea that this influence may be affected by the infant's attachment security mediated by parenting stress.

Eighteen-month-old infants, from a previous study, were studied as second graders to examine whether their …

Forced Sexual Intercourse In Relation To Female Adolescents' Risky Sexual Behavior, Psychopathology, And Behavior Problems, Mathew Christensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During 1995, over 20,000 adolescents completed the in-home interview for The National Longitudinal Study of Adolescent Health (Add Health). One question asked females if they had ever been forced to have sexual intercourse (FSI). In addition, they were asked about other sexual behavior, their psychological well-being, and behavior problems. The present study examines the associations between FSI and 26 outcome variables, comparing adolescent females who reported FSI with females who reported voluntary intercourse, and with females who reported no intercourse. In addition, the large Add Health sample allowed comparisons between five race/ethnicity groups and four adolescent groups broken down by …

Parent And Teacher Expectations For Early Childhood Education In Oman, Fatma Anwar Khamis Al-Lawati

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to examine parent and teacher expectations for early childhood educational programs in Muscat, the capital city of Oman. Questionnaires were distributed in three private schools in Muscat; these schools differed from one another in terms of their socioeconomic (SES) levels. Parent and teacher expectations were assessed, as reflected in their educational levels and socioeconomic status, in jobs and income level, and by the child's level in kindergarten. Participants were 95 mothers, 52 fathers, and 13 teachers of children age 3.5 to 5.5.

Results indicated that teachers were more developmentally appropriate than mothers and fathers. …

Interactions And Play Behavior Of Mothers Of Typically Developing Infants And Infants With Disabilities: A Vygotskian Approach, Lisa K. Boyce

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study follows a Vygotskian approach to investigate the influence and relatedness of several "scaffolding" behaviors for mother-infant dyads of both typically developing infants and infants with disabilities and how early intervention may influence the dyads through the home visiting process. For this primarily low-income sample, maternal participation during play did not enhance the infants' play. The relation of infant level of play with maternal education, income, and the maternal involvement variables of level of play and use of scaffolding varied with the disability status of the infant. Home visitor support of mother-infant interaction did not appear to influence maternal …

Congruency Of Identity Style In Married Couples, Jerry L. Cook

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study assessed the importance that similar identity style plays in the relationships within recently married couples. To assess the congruency of similar and dissimilar identity style, three postulates were analyzed. These postulates included: (a) Is there a gender difference in reports of marital intimacy? (b) Is similarity of identity style related to marital intimacy? (c) Is there an interaction effect between gender and similarity of identity style in relation to reports of marital intimacy? A sample consisting of 84 couples completed a survey containing questions relevant to identity and marital intimacy. Demographic information was also requested in the survey. …

Big Water Redevelopment Phase Iii, Natalie Robins

Undergraduate Honors Capstone Projects

Big Water, Utah is a small town located just north of the Arizona border in an area of unique scenic character. The town is strategically located as a gateway to outdoor recreation opportunities. It lies between Lake Powell, the newly designated Grand Staircase Escalante National Monument, and the Paria Wilderness. See Figure 1 for an aerial photograph of Big Water and the surrounding area. The region expects growth in the coming years, through both increased tourism and development. Current residents of the area requested planning assistance from the Landscape Architecture and Environmental Planning Department of Utah State University. The assistance …

The Genesis Of European Nationalism, Linda J. Thayne

Undergraduate Honors Capstone Projects

In the aftermath of the second world war to ravage Europe in a single generation, there emerged a conviction among many of the economic, political and social leaders of the most powerful nation-states of Europe and the United States that an equitable resolution to Europe's long standing national suspicions, hatreds and rivalries was crucial to prevent further warfare. For these Europeanists the means for effecting long-term peace and prosperity in Europe was the formation of an integrated European regime. Europeanists believed that the key to achieving this goal rested in their ability to intertwine the national interests of Europe's nation-states …

Writing A Grant For The Development Workshop, Inc., Teneal Taylor

Undergraduate Honors Capstone Projects

With the help of the Tiger Woods Foundation, the Development Workshop, Inc. (DWI) will hire a full-time Grant Writer who will become self-sufficient within three years. This request consists of a $110,000 contribution over a two-year period. Development Workshop, Inc. is a corporation in which its mission is to assist individuals with disabilities or who are otherwise disabled reach their highest level of economic and social independence. DWI is the only organization of its kind in eastern Idaho, and many persons with disabilities would have no other way of finding help without it.

Child Language And Literacy Development: A Parenting Resource Handbook, Joan B. Harrison

Undergraduate Honors Capstone Projects

One night a few years ago, my husband and I stopped in a fast-food restaurant to grab a sandwich. We sat down at a table and our eyes were drawn to a table close by. A young woman in her teens sat at the table, with a small infant in a carrier next to her on the floor. She sat, staring out the window, sipping a soft drink. After a few minutes, the baby began to fuss and squirm. The young woman continued to stare out the window. Soon the baby began to cry, but even this evoked no response …

Brigham City, Utah: Main Street District Improvements, Ross Swanson

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This report is the documentation for a design strategy of Brigham City, Utah's Main Street Historic District (MSD). The purpose of the project is to develop a strategy that can be used to guide future physical improvement to the MSD. The strategy developed in this report provides specific goals to reinforce MSD' s district identity, and enhance the pedestrian and public parking networks inside the MSD. Successful implementation of these goals will assure that the MSD will maintain a commercial and social importance for the city.

This report gives a brief overview of the events that have led to the …

Evaluation Of A Collaborative Model Using A Case Study Analysis Of Watershed Planning In The Intermountain West, Gary Bentrup

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Planning methods that involve collaboration are gaining popularity and currently being applied in a variety of resource management issues . Based on current planning theory, researchers have proposed a conceptual collaborative model for environmental planning and management . This thesis evaluates the usefulness of the model to describe the range of factors important for the establishment and operation of collaboration in environmental planning. This iterative model suggests that collaboration emerges from a series of antecedents and then proceeds sequentially through problem setting, direction setting, implementation, and monitoring and evaluation phases. The evaluation was based on three case studies of watershed-based …

The Relationships Among Body Satisfaction, Self-Esteem, And Social Support In Undergraduate Men And Women, Sarah Murray Hodson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Significant levels of body dissatisfaction exist among college women. Research has also shown levels of body dissatisfaction among college men. Numerous studies have been conducted to investigate the relationship between body dissatisfaction and self-esteem as well as the relationship between self-esteem and social support. Past research, however, has neglected to determine if a relationship exists between body dissatisfaction and social support.

This study sought to determine if this relationship exists for college men and women. The present study was also developed to test the relationships that have been found between social support and self-esteem as well as between self-esteem and …