Digital Commons Network^™

Afterschool Programs In Your Community, Funding And Collaboration, Deb Jones

All Current Publications

An estimated eight million school age children between the ages of 5 and 14, go home to an empty house. Statistics reveal that most juvenile crime is committed between the hours of 2:00 pm and 8:00 pm, with the crime rate tripling in the rst hour after school is out.

Encountering Mormon Country: John Wesley Powell, John Muir, And The Nature Of Utah, Donald Worster

Arrington Annual Lecture

No abstract provided.

Lessons Learned Of Nspo’S Picosatellite Mission: Yamsat - 1a, 1b & 1c, Chen-Joe Fong, Albert Lin, Allen Shie, Marco Yeh, Wen-Chen Chiou, Ming-Hsien Tsai, Pei-Yi Ho, Chin-Wen Liu, Ming-Shong Chang, Hsu-Pan Pan, Steven Tsai, Chiuder Hsiao, Chi-Hung Hwang, Kuei-Shu Chang-Liao, Lin-Kun Wang

Small Satellite Conference

The YamSat is the first developed picosatellite in National Space Program Office’s (NSPO), Taiwan, R.O.C. It is scheduled to flight in the CubeSat launch in 2003. The rapid-prototyping system engineering different from the past formal discipline opens a new satellite development model in NSPO. The YamSat Test Readiness Review Meeting was successfully held in January 2002 and the environmental tests were completed by end March 2002. Besides the breadboard model and engineering test bed to prove of operation concept are built, three YamSats (1A, 1B, & 1C) instead of one are manufactured with slightly different configurations and purposes. The YamSat- …

Mems Technology Demonstration On Traveler-I, Brian D’Souza, Andrew Jamison, Marcus Young, Andrew Ketsdever, Anne Chinnery

Small Satellite Conference

Traveler-I is a flight test platform for advanced micro-electro-mechanical systems (MEMS) devices that is being built at the University of Southern California (USC) and is to be flown aboard the next Scorpius® sub-orbital launch vehicle. Microcosm, Inc. and Scorpius Space Launch Company have initiated a program that currently provides sub-orbital launch opportunities, with the possibility of orbital flights in the future. Flight opportunities such as these allow for short duration missions where new technologies can be rapidly developed and tested in a launch and space environment. Traveler-I allows for low cost flight demonstration and testing of new and innovative MEMS …

A Monopropellant Milli-Newton Thruster System For Attitude Control Of Nanosatellites, Donald Platt

Small Satellite Conference

Work is progressing on monopropellant thrusters for use as an attitude control system for nanosatellites (satellites whose mass is under 10 kilograms). The thrust range for these microthrusters is on the order of millinewtons. Systems using both hydrazine and hydrogen peroxide are being developed which will offer higher performance than currently available thrusters for nanosatellites. Complete thruster systems using both propellant combinations have been built and are undergoing evaluation. Hot firings are currently being conducted. The microthruster system will be tested on an upcoming nanosatellite to be launched at the end of this year. These thrusters will offer an inexpensive, …

Stpsat-1: A New Approach To Dod Experiment Spaceflight, Patricia Davis, Glen Cameron, Eric Aamot, Nathan Devilbiss

Small Satellite Conference

For small satellites, finding affordable access to space is a daunting hurdle. The Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter (ESPA) promises to make excess capacity on future EELV launches available for the Department of Defense (DoD) Space Test Program (STP) and other organizations as a lower-cost launch alternative. STP Satellite Mission 1 (STPSat-1) is the first STP satellite built specifically to exploit this capacity. STPSat-1 continues STP’s mission to provide access to space for DoD sponsored experiments. This spacecraft hosts four such experiments: Spatial Heterodyne Imager for Mesospheric Radicals (SHIMMER); Computerized Ionospheric Tomography Receiver in Space (CITRIS); Micro-Electro-Mechanical …

A Small-Satellite Demonstrator For Generating Artificial Gravity In Space Via A Tethered System, Andre Mazzoleni, John Hoffman

Small Satellite Conference

It is well-known that prolonged exposure in humans to a microgravity environment leads to significant loss of bone and muscle mass; this presents a formidable obstacle to human exploration of space, particularly for missions requiring travel times of several months or more, such as a 6 to 9mon th trip to Mars. Artificial gravity may be produced by spinning a spacecraft about its center of mass, but since the g– force generated by rotation is equal to “omega-squared times r” (where omega is its angular velocity and r is the distance from the center of rotation), we have that unless …

Preliminary Design Of A High Performance Solar Sailing Mission, Dan Cohen, Paul Gloyer, James Rogan

Small Satellite Conference

The Team Encounter participants, Team Encounter, LLC, AeroAstro Inc., and L’Garde, Inc. have recently completed the preliminary design of the Team Encounter spacecraft, Humanity's First Starship™. The spacecraft, intended to be launched as a secondary payload on an Ariane 5 launcher in the first or second quarter of 2004, consists of two parts: the Carrier, which transports the Sailcraft beyond Earth’s gravity well and the Sailcraft which transports its payload of 3 kg out of the solar system. The Carrier must provide a stable platform for deployment and separation of the 4900 m2 solar sail, and will provide for video …

Ffdem: Demonstrating Formation Flying With Small Spacecraft, Luís Gomes, Martin Sweeting, Theresa Beech, Guillermo Ortega

Small Satellite Conference

Several missions are currently proposed that require very close formation flying. Missions such as IRSI -Darwin and Xeus will require the development of new techniques and equipment to achieve the stringent performances required. Both these missions will be preceded by demonstration missions, aimed at validating concepts of formation flying and generating a European capability in this field. These precursor mis sions will very much be standard missions, using a classical “large project” approach. This has lead ESA to consider the procurement of an innovative mission, which would demonstrate some aspects of Formation Flying, using microsatellite class spacecraft, with a mass …

The Inertial Stellar Compass: A New Direction In Spacecraft Attitude Determination , T. Brady, C. Tillier, R. Brown, A. Jimenez, A. Kourepenis

Small Satellite Conference

The Inertial Stellar Compass (ISC) is a real-time, miniature, low power stellar inertial attitude determination system, composed of a wide field-of-view active pixel star camera and a microelectromechanical system (MEMS) gyro assembly, with associated processing and power electronics. The integrated technologies enable an attitude determination system with an accuracy of 0.1 degree (1 sigma) to be realized at very low power and volume. The attitude knowledge provided by the ISC is applicable to a wide range of space and earth science missions that may include the use of highly maneuverable, stabilized, tumbling, or lost spacecraft. Under the guidance of NASA’s …

The Icarus Student Satellite - A Fully Autonomous Student Built Small Satellite For Nasa, Hannah Goldberg, Bt Cesul, Brian Gilchrist

Small Satellite Conference

University of Michigan students, with the mentoring support of engineers from NASA, Michigan, and elsewhere, have developed a small endmass satellite—dubbed Icarus—for NASA’s ProSEDS (Propulsive Small Expendable Deployer System) electrodynamic-tether propulsion mission. The ProSEDS experiment will be launched in late 2002 as a secondary payload attached to the second stage of a Delta–II launch vehicle. Following the completion of the Delta–II primary mission, the second stage will initiate a series of burns to place ProSEDS into a 360-km, near-circular orbit at an inclination of 35°. The Icarus endmass satellite will be cast off from the Delta–II second stage and be …

Tu Sat 1: A Novel Communications And Scientific Satellite, W.C. Holmes, Josh Bryson, Brent Gerig, Jacob Oehrig, Jonathan Rodriguez, Jeremy Schea, Noel Schutt, David Voss, Jonathan Voss, David Whittington, Adam Bennett, Chris Fennig, Stefan Brandle, Jeff Dailey, H.D. Voss

Small Satellite Conference

TU Sat 1 is a multipurpose nanosatellite scheduled for launch on the first CubeSat mission, a 650 km polar orbit. TU Sat 1 provides a low-cost store and forward email communication system for individuals in 3rd world nations. The satellite includes a 115 Kbps primary transceiver and a 1.2 Kbps secondary Ham transceiver. The primary data link uses a 900 MHz COTS data transceiver with a lightweight patch antenna. The satellite 386 CPU on a board processes scientific data, emails and attachments into a 32 Mbyte flash drive. The scientific data is also stored on the 386 before downlink to …

2001 Annual Report, Various Authors

Annual Reports

No abstract provided.

Food Storage, Rodents And Hantavirus, Charlotte Brennand

All Current Publications

No abstract provided.

Utah Science Vol. 61 No. 3, Summer 2002

Utah Science

2 GROWING WHEAT FROM SPACE

10 100 YEARS OF SCIENCE AND RESEARCH AT THE GREENVILLE FARM

20 MAKING POPLARS POPULAR

14 SEEDS -new people, grants and contracts in science

17 SYNTHESIS -science at Utah State

24 SEEK -students in science

25 SEARCH -science on the web

Scoping Comment Summary Report For The Vegetation Treatments Programmatic Environmental Impact Statement, United States Department Of The Interior, Bureau Of Land Management

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

No abstract provided.

Advanced Master Gardener Landscape Gardening For Gardeners, Larry A. Sagers

All Archived Publications

No abstract provided.

Hill Air Force Base: Archaeological Monitoring Of Target And Access Road Development For The Ts-5-2 Target Area, Utah Test And Training Range, Tooele County, Utah, Daron Duke

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

The U.S. Army Corps of Engineers, Fort Worth District, contracted with Geo-Marine, Inc., to conduct archaeologial monitoring for a U.S. Air Force Air Combat Command (ACC) project on the Utah Test and Training Range (UTTR), which is under the jurisdiction of Hill Air Force Base and located in Tooele County, western Utah. Monitoring of ground disturbing activities associated with ACC development of Target TS-5-2 and a 2.5-mile dirt access road on the TS-5 (Wild Isle) area of UTTR was undertaken in January 2001. Additional target and access road development monitoring was conducted in July and August of 2001, and the …

All Tots Need Their Shots- Immunize By Two, Heidi Leblanc

All Archived Publications

This publication information about toddlers and shots and the recommended guidelines to follow.

A System For Emergency Care Ventilator Control, Brad Brian, Ken Johnson

Utah Space Grant Consortium

Closed-loop control of mechanical ventilators could have a positive impact on pre-hospital patient care. Several methods to achieve this goal have been researched. A current method entitled "Adaptive Volume ventilation" is being studied in the Department of Anesthesiology at the University of Utah Health Science Center. Preliminary clinical trials using the work of breathing model have shown that optimal settings for respiratory rate are significantly higher and optimal settings for tidal volume are significantly lower than those set by clinicians. Measured respiratory rate and tidal volumes were 9.7+/-1.4 bpm and 8.9+/-1.9 ml/kg, respectively. Optimal ventilator settings were calculated to be …

Studies Of Urea In Space, Ed Galindo, James Barta

Utah Space Grant Consortium

This is a good story. This is a story about space flight. This is a story about schools, a Native American High School and a University. This is a story about students and doing great research. This is a story about people working together to make some amazing things happen. Things like friendships, courage, commitment and knowledge. This is a story about a science teacher working on an Indian reservation with some of the brightest stars I know, the students and staff of Shoshone-Bannock High school on the Fort Hall, Indian Reservation located in southeastern Idaho. And last, but certainly …

Pulmonary Metaphor Design And Anesthesia Simulation Testing, S. Blake Wachter, James Agutter, Noah D. Syroid, Frank A. Drews, Robert Albers, David Strayer, Dwayne R. Westenskow

Utah Space Grant Consortium

Medical decision making is a crucial process to successfully treat a critical medical emergency. During an unexpected medical event, astronauts, like anesthesiologists, must react quickly in a complex environment. Tools, such as the pulmonary metaphor display, were created to aid the medical caregiver's decision making process. The pulmonary metaphor display is designed to help the caregiver collect and integrate pulmonary data to provide a more accurate, quicker diagnosis and treatment. The following outline anesthesiology simulation study will provide the data to prove that the pulmonary metaphor display is beneficial to medical decision making.

Insights, Spring, 2002, Utah State University

Discovery Magazine

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

Community-Level Effects Of Clearcutting And Wildfire On Shrews, Grasshoppers, And Ground-Dwelling Beetles, J. Creed Clayton

Biology

Timber harvesting is often proposed as a substitute for stand-replacing wildfire; many feel such a controlled disturbance plays a similar ecological role to the natural disturbance of fire. In order to gain more insight into the soundness of this management approach, ground-dwelling beetles (Coleoptera), grasshoppers, crickets, and allies (Orthoptera), and shrews (Insectivora: Soricidae) were sampled by pitfall trap in recently burned, clearcut, and undisturbed forested plots (controls) near Logan, Utah. Over 200 beetle species from 39 families were included in the study. Nine orthopteran and two shrew species were included as well. Beetle abundance was reduced after burning and clearcutting, …

The Influence Of Predator Exclosures And Livestock Grazing On Duck Production At Bear River Migratory Bird Refuge, Utah, Benjamin C. West

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nest predation is a major factor impacting duck production and recruitment on breeding areas in North America. I surveyed waterfowl managers employed by the U.S. Fish and Wildlife Service and U.S. state wildlife agencies to determine their beliefs about nest predation and its management. Over 64% of respondents believed that rates of nest success on their management units averaged < 30% between 1996-2000. Managers believed habitat management and direct predator control were the most effective techniques to reduce nest predation. The construction of predator ex closures around nesting habitat also has been recommended to reduce nest predation. Between 1999-200 I, I evaluated the effectiveness of 4 predator ex closures to enhance duck nest success at Bear River Migratory Bird Refuge, Utah. During this period, rates of nest success in the exclosures were slightly higher than that within control plots, but still < 15%. Although published guidelines commonly recommend predator fences < 117 cm in height, I observed red foxes jump the 11 4-cm-high fences. Additional research is needed to identify effective predator fence designs.

Wildlife managers have argued that periodic disturbance of vegetation should be a component of management on waterfowl breeding areas. Although many techniques are available to manipulate vegetation, grazing by domestic livestock has been controversial. Some researchers have reported that livestock grazing …

Effects Of Myxobolus Cerebralis On The Population Dynamics Of Kokanee In Porcupine Reservoir, Utah, Arthur E. Butts

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study tracked the chronology and severity of Myxobolus cerebralis infection and related it to survival of age-0 kokanee to determine whether M. cerebralis represented a significant agent of morality in the population. Environmental conditions and losses to predation were identified and linked to age-0 kokanee survival to identify other sources of mortality in the population. We attempted to track survival of age-0 kokanee from the outmigration into the reservoir until the end of the first growing season in September of each year. The number of age-0 kokanee that entered the reservoir was calculated by obtaining estimates of total egg …

A Meta-Analysis Of The Alcohol Treatment Outcome Literature: 1993 To 2000, Anthony Phillip Tranchita

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Alcohol misuse is a very common problem with high financial and personal costs. Treatment requires allocation of limited resources for optimal impact. Responsible decision making in this area should be based upon reasoned weighing of research evidence. Miller and colleagues completed a meta-analytic review of all controlled studies published before 1992 to help clinicians do just that. The coding system they employed examined methodological quality, as well as outcome, to obtain a rank­ordering of treatments that seem to have the most quality research support. The current study attempts to extend this work utilizing the same coding on studies published since …

Psychoeducation Groups For Parents Adopting Special-Needs Children, Korinne Knowlton Bouwhuis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis evaluated training groups for adoptive parents of special-needs children. It was hypothesized that training would influence parenting stress, stress symptoms, and marital satisfaction, and that helpfulness of training sections would depend upon the status of the participants' children (i.e., foster, adopted, or adoption in process). Data were collected from 15 participants who were sampled through agencies that typically interact with adoptive parents.

Repeated measures ANOYAs were computed to compare scores on the PSI/SF Parental Distress Subscale, OQ-45, and RDAS across three time intervals. No significant differences were found. Data from a scale of helpfulness were analyzed using descriptive …

Parents' Marital Quality And Interactions In Relation To Child Well-Being, Spencer C. Leavitt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Using a large national data set, this study was among the first to examine direct associations between parents' marital relationships and children's emotional, academic, and behavioral characteristics. The mediating effect of children's home environments, as well as relationships between children and parents, also were analyzed. The research design was longitudinal. Marital variables were measured in 1994, intervening variables in 1996, and children's outcome variables in 1998. It was expected that children would be influenced by three different aspects of their parents' marriage: marital happiness, marital interactions, and marital arguments. The parent/child relationship (parent/child closeness) and the children's home environments were …

Identifying Paths To Successful Marriage And Family Therapy Research: External Factors Within The Publications Of Three Eminent Marriage And Family Therapy Researchers, Sarah Rebecca Sancher Droubay

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In an attempt to identify a possible pathway to successful research in marriage and family therapy (MFT), publications of three eminent MFT researchers—James Alexander, John Gottman, and Howard Liddle—were content analyzed. These 208 journal articles, books, book chapters, and dissertations were examined for external factors and patterns across time.

Results supported the importance of doing clinical work, having a sustained research interest area, obtaining funding, and maximizing the utility of one's research samples. Implications and recommendations for future researchers, research training, career paths in clinical research, and further research are given.