Physical Sciences and Mathematics Commons^™

Ceg 720: Computer Architecture I, Soon M. Chung

Computer Science & Engineering Syllabi

Review of sequential computer architecture and study of parallel computers. Topics include memory hierarchy, reduced instruction set computer, pipeline processing, multiprocessing, various parallel computers, interconnection networks, and fault-tolerant computing.

Ceg 725: Computer Vision Ii, Arthur A. Goshtasby

Computer Science & Engineering Syllabi

In this course we will learn computer algorithms that interpret images. Some of the algorithms will be practiced through computer implementation.

Ceg 830: Distributed Computing Systems, Prabhaker Mateti

Computer Science & Engineering Syllabi

Example languages and packages: SR and PYM, file servers, semantics of file sharing, caches and replication, log-structured file systems, remote evaluation, process migration, mobile projects, check pointing and rollback-recovery.

Ceg 860: Object-Oriented Programming, Krishnaprasad Thirunarayan

Computer Science & Engineering Syllabi

This course motivates the need for object-oriented programming, and studies, in detail, object-oriented programming techniques, languages, and technology. The lectures will focus on the foundations of OOP, while the student presentations will focus on the applications and extensions of Object Technology.

Ceg 320/520: Computer Organization, Nikolaos Bourbakis

Computer Science & Engineering Syllabi

No abstract provided.

A Long-Period Planet Orbiting A Nearby Sun-Like Star, Hugh R. A. Jones, R. Paul Butler, Chris Tinney, Simon O'Toole, Rob Wittenmyer, Gregory W. Henry, Stefano Meschiari, Steve Vogt, Eugenio Rivera, Greg Laughlin, Brad D. Carter, Jeremy Bailey, James S. Jenkins

Information Systems and Engineering Management Research Publications

The Doppler wobble induced by the extra-solar planet HD 134987b was first detected by data from the Keck Telescope nearly a decade ago, and was subsequently confirmed by data from the Anglo-Australian Telescope (AAT). However, as more data have been acquired for this star over the years since, the quality of a single Keplerian fit to that data has been getting steadily worse. The best-fitting single Keplerian to the 138 Keck and AAT observations now in hand has an root-mean-square (rms) scatter of 6.6 m s−1. This is significantly in excess of both the instrumental precision achieved by both the …

Editors' Introduction And Acknowledgements, Coalition For Education In The Outdoors (Ceo)

Research in Outdoor Education

The article offers information related to papers that were published in the publication "Research in Outdoor Education" Volume 10, as well as acknowledging the efforts of all who contributed to the publication.

Front Matter, Coalition For Education In The Outdoors (Ceo)

Research in Outdoor Education

The Coalition for Education in the Outdoors is a network of institutions, organizations, agencies, centers, businesses, and associations linked and communicating in support of the broad purposed of education in, for , and about the outdoors. The Coalitions assists in identifying the needs of its affiliates in meeting their various constituent needs, as well as advancing the mission of outdoor education globally.

A Research Task Force was initiated by the Coalition in 1990 with the purpose of supporting the conduct of research in the field and dissemination of the results. The symposium at Bradford Woods and this publication offer evidence …

Preface, Anderson B. Young

Research in Outdoor Education

A preface to the journal "Research in Outdoor Education," volume 10 is presented by the author on behalf of the Coalition for Education in the Outdoors (CEO) Research Committee.

Measuring Positive Youth Development At Summer Camp: Problem Solving And Camp Connectedness, Jim Sibthorp, Laurie Brown, M. Deborah Bialeschki

Research in Outdoor Education

While research on summer camps has generally supported the benefits of organized camping for youth, increasing pressure exists for camps to document outcomes to stakeholders and to base their practices on evidence. This paper discusses the theoretical and empirical development of two measures relevant to these needs: Problem Solving Confidence and Camp Connectedness. The process of scale development included reviewing conceptual and theoretical literature as it related to camp settings. Items based on the relevant content domains were then generated, reviewed by experts, and pilot tested with 557 campers. Evidence from this pilot study suggests that both measures may be …

The Importance Of Trust In Outdoor Education: Exploring The Relationship Between Trust In Outdoor Leaders And Developmental Outcomes, Wynn Shooter, Jim Sibthorp, John Gookin

Research in Outdoor Education

Recent studies have acknowledged the influence of the leader in the outdoor education process and have illuminated the need for strong interpersonal relationships between participants and leaders. Developing interpersonal trust is one among many ways that leaders can promote such positive interpersonal relationships between themselves and participants. Transdisciplinary literature suggests that trust in a leader can predict outcomes that are important to outdoor education. This study found a positive relationship between trust in outdoor leaders and the course outcomes of leadership development and outdoor skills development among students of National Outdoor Leadership School (NOLS) courses. Implications for program implementation and …

Resilience As Experienced By Environmental Educators, Kelly Henderson, Timothy S. O'Connell

Research in Outdoor Education

This study examined resilience as experienced by environmental educators in the face of growing environmental adversity. Through in-depth interviews, this hermeneutical study sheds light on the environmental factors and internal competencies that contribute to resilience in seven environmental educators. Additionally, the interaction between these factors and competencies (known as the person/environment transactional process) is explored. Kumpfer's (1999) Resilience Framework provides the organizational framework for the results of this study.

Fostering Leadership Through A Three-Week Experience: Does Outdoor Education Make A Difference?, Alan Ewert, Jillisa Overholt

Research in Outdoor Education

Leadership is one of the principal goals and desired outcomes from participation for many outdoor education programs. This study examines the effectiveness of a short-term expedition-based outdoor experience on the leadership skill level of program participants. Results demonstrate a significant increase in self-reported leadership skills over time for the treatment group, p < .001, as well as a significant difference in leadership skill levels between the treatment group and the control group, p < .05. It is argued that outdoor education settings offer the types of hands-on and diverse experiential leadership development opportunities that are often lacking in other leadership development realms. Building on current leadership theory, implications for outdoor leadership training programs are discussed and several models of outdoor leadership skill development are presented.

Re-Thinking Group Development In Adventure Programming: A Qualitative Examination, Levi Dexel, Bruce Martin, Laura Black, Aiko Yoshino

Research in Outdoor Education

The purpose of the study was to re-examine the efficacy of Tuckman's (1965) model of group development in adventure programming. More specifically, the researchers were interested in comparing Tuckman's traditional sequential model to more contemporary non-sequential and integrative models that have emerged as alternative ways to conceptualize the process of group development. The researchers used a case study approach (Merriam, 2001) and techniques characteristic of naturalistic inquiry (Lincoln & Guba, 1985) to explore the nature of group development among participants in a weeklong sea kayaking expedition. The researchers concluded that more contemporary models of group development more accurately explained the …

Children's Perceptions Of An Environmental Leadership Program: Camp 2 Grow, Karla Henderson, Barry Garst, M. Deborah Bialeschki, David Santucci

Research in Outdoor Education

Nature-deficit disorder has been highlighted as a concern for today's children. Organized camps for children have traditionally been associated with nature-based opportunities. However, the role that camps have in developing an appreciation for the outdoors and environmental stewardship has not been documented. The purpose of this study was to evaluate youths' perceived connections to nature resulting from a pilot test of a leadership and environmental stewardship program (i.e., Camp 2 Grow) undertaken at organized resident camps during the summer of 2009. Qualitative analyses of personal reflection journals were used. Campers recognized through this program that having the freedom to enjoy …

Longitudinal Participant Outcomes Associated With Outward Bound And National Outdoor Leadership School: A Means-End Investigation, Marni Goldenberg, Katherine Soule, Jason Cummings, Dan Pronsolino

Research in Outdoor Education

Means-end theory was used to analyze differences in outcomes from original and follow-up interviews occurring over the three subsequent years after Outward Bound (OB) and National Outdoor Leadership School (NOLS) course participation. In 2006, a semi-structured, in-person interview was conducted after participants (N=510) completed their course. In 2007, 2008, and 2009, semi-structured telephone interviews were conducted with a convenience sample of original participants. Results of this study show how OB and NOLS programs continue to increase participant self-respect, self-esteem, and self-confidence, provide a sense of accomplishment, and impart transferable lessons and skills three years after course participation. Understanding such participant …

Kinetic Analysis Of Prodrug Activation And Atp/Utp Substrate Preference Of Nine Human Deoxycytidine Kinase Mutants, Breanna Wentz, Jaclyn Einspahr, Michael H. Godsey

CUP Undergraduate Research

Deoxynucleoside analogues are prodrugs that canfunction as inhibitors of both viral and cellular DNA replication processes. They are important in anti-cancer therapy because they hinder DNA synthesis and cellular mitosis. Within the cell, deoxyribonucleotides are synthesized using the salvage pathways by converting the unphosphorylated nucleosides to their mono, di- and tri-phosphate forms using a phosphoryl donor: ATP or UTP. Human deoxycytidine kinase (dCK) is the first and rate-limiting enzyme in this process. The dCK protein uses nucleotide triphosphates to phosphorylate several clinically important nucleoside analogue prodrugs in addition to its natural substrates. The preferred physiological phosphoryl donor for dCK is …

Field-Induced Quantum Phase Transitions In The Spin-1/2 Triangular-Lattice Antiferromagnet Cs2cubr4, Nathanael Alexander Fortune, Scott T. Hannahs, Y. Takano, Y. Yoshida, T. Sherline, A. A. Wilson-Muenchow, T. Ono, H. Tanaka

Physics: Faculty Publications

In classical magnetic spin systems, geometric frustration leads to a large number of states of identical energy. We report here evidence from magnetocaloric and related measurements that in Cs2CuBr4 — a geometrically frustrated Heisenberg S= 1/2 triangular antiferromagnet — quantum fluctuations stabilize a series of gapped collinear spin states bounded by first-order transitions at simple increasing fractions of the saturation magnetization for fields directed along the c axis. Only the first of these quantum phase transitions has been theoretically predicted, suggesting that quantum effects continue to dominate at fields much higher than previously considered.

Color-Magnitude Relation And Morphology Of Low-Redshift Ulirgs In Sloan Digital Sky Survey, Yuxi Chen, James D. Lowenthal, Min S. Yun

Astronomy: Faculty Publications

We present color-magnitude and morphological analysis of 54 low-redshift ultraluminous infrared galaxies (ULIRGs; 0.018 < z < 0.265 with z = 0.151), a subset of the Infrared Astronomical Satellite 1Jy sample, in the Sloan Digital Sky Survey (SDSS). The ULIRGs are both bright and blue: they are on average 1mag brighter in than the SDSS galaxies within the same redshift range, and 0.2mag bluer in g - r. They form a group in the color-magnitude diagram distinct from both the red sequence and the blue cloud formed by the SDSS galaxies: 24 out of the 52 unsaturated objects (46%) lie outside the 90% level number density contour of the SDSS galaxies. The majority (47, or 87%) have the colors typical of the blue cloud, and only four (7%) sources are located in the red sequence. While ULIRGs are popularly thought to be precursors to a QSO phase, we find few (three, or 6%) in the "green valley" where the majority of the X-ray- and IR-selected active galactic nuclei (AGNs) are found. Moreover, none of the AGN-host ULIRGs are found in the green valley. For the 14 previously spectroscopic identified AGNs (28%), we perform point-spread function subtractions and find that on average the central point sources contribute less than one-third to the total luminosity, and that their high optical luminosities and overall blue colors are apparently the result of star formation activity of the host galaxies. Visual inspection of the SDSS images reveals a wide range of morphologies including many close pairs, tidal tails, and otherwise disturbed profiles, in strong support of previous studies and the general view of ULIRGs as major mergers of gas-rich disk galaxies. A detailed morphology analysis using Gini and M coefficients shows that slightly less than one-half (42% in g band) of the ULIRGs are located in the merger region defined by morphology studies of local galaxies, while the remaining sources are located in the region of late-type and irregular galaxies. The heterogeneous distribution of ULIRGs in the G-M space is qualitatively consistent with the results found by numerical simulations of disk-disk mergers, and our study also shows that the measured morphological parameters are systematically affected by the signal-to-noise ratio and thus the merging galaxies can appear in various regions of the G-M parameter space. We briefly discuss the origins of the uncertainties and note that the morphology measurements should be implemented with caution for low physical resolution images. In general, our results reinforce the view that ULIRGs contain young stellar populations and are mergers in progress, but we do not observe the concentration of ULIRGs/AGN in the green valley as found by other studies. Our study provides a uniform comparison sample for studying dusty starbursts at higher redshifts such as Spitzer MIPS 24 μm-selected ULIRGs at z = 1-2 or submillimeter galaxies.

Apparent Seasonal Cycle In Isotopic Discrimination Of Carbon In The Atmosphere And Biosphere Due To Vapor Pressure Deficit, Ashley P. Ballantyne, J. B. Miller, P. P. Tans

Ecosystem and Conservation Sciences Faculty Publications

We explore seasonal variability in isotopic fractionation by analyzing observational data from the atmosphere and the biosphere, as well as simulated data from a global model. Using simulated values of atmospheric CO₂ and its carbon isotopic composition, we evaluated different methods for specifying background concentrations when calculating the isotopic signature of source CO₂ (δ_s) to the atmosphere. Based on this evaluation, we determined that free troposphere measurements should be used when available as a background reference when calculating δ_s from boundary layer observations. We then estimate the seasonal distribution of δ_s from monthly …

Evolution Of Trace Gases And Particles Emitted By A Chaparral Fire In California, S. K. Akagi, J. S. Craven, J. W. Taylor, G. R. Mcmeeking, Robert J. Yokelson, I. R. Burling, S. P. Urbanski, C. E. Wold, J. H. Seinfeld, H. Coe, M. J. Alvarado, D. R. Weise

Chemistry and Biochemistry Faculty Publications

Biomass burning (BB) is a major global source of trace gases and particles. Accurately representing the production and evolution of these emissions is an important goal for atmospheric chemical transport models. We measured a suite of gases and aerosols emitted from an 81 hectare prescribed fire in chaparral fuels on the central coast of California, US on 17 November 2009. We also measured physical and chemical changes that occurred in the isolated down-wind plume in the first similar to 4 h after emission. The measurements were carried out onboard a Twin Otter aircraft outfitted with an airborne Fourier transform infrared …

Laboratory Measurements Of Trace Gas Emissions From Biomass Burning Of Fuel Types From The Southeastern And Southwestern United States, I. R. Burling, Robert J. Yokelson, David W. T. Griffith, T. J. Johnson, P. Veres, J. M. Roberts, C. Warneke, S. P. Urbanski, J. Reardon, D. R. Weise, Wei Min Hao, J. De Gouw

Chemistry and Biochemistry Faculty Publications

Vegetation commonly managed by prescribed burning was collected from five southeastern and southwestern US military bases and burned under controlled conditions at the US Forest Service Fire Sciences Laboratory in Missoula, Montana. The smoke emissions were measured with a large suite of state-of-the-art instrumentation including an open-path Fourier transform infrared (OP-FTIR) spectrometer for measurement of gas-phase species. The OP-FTIR detected and quantified 19 gas-phase species in these fires: CO2, CO, CH4, C2H2, C2H4, C3H6, HCHO, HCOOH, CH3OH, CH3COOH, furan, H2O, NO, NO2, HONO, NH3, HCN, HCl, and SO2. Emission factors for these species are presented for each vegetation type burned. …

Trace Gas And Particle Emissions From Domestic And Industrial Biofuel Use And Garbage Burning In Central Mexico, Ted J. Christian, Robert Yokelson, B. Cardenas, L. T. Molina, G. Engling, S. C. Hsu

Chemistry and Biochemistry Faculty Publications

In central Mexico during the spring of 2007 we measured the initial emissions of 12 gases and the aerosol speciation for elemental and organic carbon (EC, OC), anhydrosugars, Cl(-), NO(3)(-), and 20 metals from 10 cooking fires, four garbage fires, three brick making kilns, three charcoal making kilns, and two crop residue fires. Global biofuel use has been estimated at over 2600 Tg/y. With several simple case studies we show that cooking fires can be a major, or the major, source of several gases and fine particles in developing countries. Insulated cook stoves with chimneys were earlier shown to reduce …

Assessment Of Utah Bankruptcies By Census Tracts: A Spatial Statistical Approach, Kenneth Pena

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

There are two questions raised when looking at the spatial pattern of the rate of bankruptcies in Utah: (i) are there similarities between the bankruptcy data in adjacent census tracts and (ii) can local cluster and outliers be identified within the data? Specifically, are there similar rates of bankruptcies in bordering census tracts and are there any localized areas of interest where we find extremely high or extremely low rates of bankruptcies? This study uses spatial statistics to perform tests for spatial autocorrelation to address these two questions. It also looks at commonalities in the clusters and differences in the …

Improving Accuracy Of Large-Scale Prediction Of Forest Disease Incidence Through Bayesian Data Reconciliation, Ephraim M. Hanks

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

Increasing the accuracy of predictions made from ecological data typically involves replacing or replicating the data, but the cost of updating large-scale data sets can be prohibitive. Focusing resources on a small sample of locations from a large, less accurate data set can result in more reliable observations, though on a smaller scale. We present an approach for increasing the accuracy of predictions made from a large-scale eco logical data set through reconciliation with a small, highly accurate data set within a Bayesian hierarchical modeling framework. This approach is illustrated through a study of incidence of eastern spruce dwarf mistletoe …

Numerical Solution Of The Five-Moment Ideal Two-Fluid Equations In One Dimension, Marcus Scott

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

Plasmas are frequently treated as a single conducting fluid and modeled using the equations of magnetohydrodynamics. However, this regime works better for low-frequency plasmas. High-frequency plasmas may be modeled using the principles of kinetic theory. For plasmas with frequencies between these two extremes, a two-fluid approach can yield better results. In 2006, Ammar Hakim mathematically modeled a plasma with a set of equations called the five-moment ideal two-fluid equations. An attempt is made reproduce those results. A derivation of this set of equations by taking moments of the Boltzmann equation is presented. Electric and magnetic fields contribute to the source …

Assessing The Precision And Accuracy In A Small Sample Of Actical Devices, Peter Sherick

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

Actigraphy is an increasingly popular approach in medicine to assess patient activity levels in a variety of scenarios. The devices are essentially accelerometers encased in a write-watch type assembly. This project sought to determine the device precision and accuracy for the Actical model. In a sample of four Acticals, it was found that intra-device variability was minimal. However, one device was found to be statistically biased in comparison to the other three. This bias could have adverse effects on aggregated or magnitude dependent data analysis. Also, inter-device comparisons may be problematic.

Grading Practice Influence On The Value Of An Assigned Grade, Carrie Bala

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

This article presents results of a study of grading practice influence on the value of an assigned grade. The value of an assigned grade, as an indication of student achievement of learning goals, was measured using the Utah Criterion-Referenced Test (CRT) in the subjects of Geometry and Algebra 2. The grading policies of six mathematics teachers at the same high school were categorized according to grading practice and their combined 587 students' scores on the Utah CRT were collected and analyzed. The findings suggest that certain grading practices , such as the use of a 1-4 scale and a criterion-referenced …

Earth‐Moon‐Mars Radiation Environment Module Framework, Nathan A. Schwadron, L. Townsend, K. Kozarev, M. A. Dayeh, F. Cucinotta, M. Desai, M. Golightly, D. Hassler, R. Hatcher, M. Y. Kim, A. Posner, M. Pourarsalan, Harlan E. Spence, R. K. Squier

Physics & Astronomy

[1] We are preparing to return humans to the Moon and setting the stage for exploration to Mars and beyond. However, it is unclear if long missions outside of low-Earth orbit can be accomplished with acceptable risk. The central objective of a new modeling project, the Earth-Moon-Mars Radiation Exposure Module (EMMREM), is to develop and validate a numerical module for characterizing time-dependent radiation exposure in the Earth-Moon-Mars and interplanetary space environments. EMMREM is being designed for broad use by researchers to predict radiation exposure by integrating over almost any incident particle distribution from interplanetary space. We detail here the overall …

2,3-Bis(Bromomethyl)-1,4-Diphenylbenzene, Jonathan B. Briggs, Mikael D. Jazdzyk, Glen P. Miller

Chemistry

In the title compound, C(20)H(16)Br(2), the terminal phenyl groups are twisted away from the central ring by approximately 55 and -125 degrees (average of four dihedral angles each), respectively. The crystal structure is stabilized by a combination of interMolecular and intraMolecular interactions including interMolecular pi-pi stacking interactions [C atoms of closest contact = 3.423 ( 5) angstrom].