cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analysis of measurement errors associated with variable-radius plot forest sampling
Creators: name: Omule, Stephen Agnew Yen’Emurwon
Publisher: name: University of British Columbia
Year: 2010

description: Forest inventories form a basis of decision-making in most aspects of forest resources management. Implicitly, therefore, inventories must be conducted efficiently and with a minimum of error. This thesis analyses the errors of measurement during a variable-radius plot forest inventory cruise, with the objective of determining crew variation and bias in tree count, diameter, and total height measurements. Data for the study were collected at The University of British Columbia Research Forest, Maple Ridge, British Columbia, during the third year forestry students field school in mensuration. In each of the six lots of 10 pre-set sample plot centers, three to six 3~man student crews each established prism and relascope plots, took the tree count, and measured the diameters at breast height of all the "in" trees and the total heights of the first "in" trees. The crews took their measurements independently of each other, and had to complete the exercise within a period of 8 hours. The author's measurements and observations in the same plot centers formed the control to the study. The crew variation in tree count was calculated by the method of Analysis of Variance, and in diameter and height measurement by pooling the variation for each tree to obtain a weighted average variation per tree. Bias was evaluated by comparing the crew results with those of the control. The following results were obtained from the study: The average tree count was 9.5 trees in the basal area factor (BAF) - 6 prism plots and 7.4 trees in the BAF = 9 relascope plots. The coefficient of variation of observer tree count was 10.445 with the prism and 4.93% with the relascope. The percentage error in the determination of basal area per hectare from 2 5 prism plots was as much as ± 4.09%. and from 25 relascope plots ± 1.93% at the a = .05 probability level. About 37% of the tree counts in the relascope plots and 25% in the prism plots were measured without error. The maximum tree count error v/as ± 6 trees per plot. The average tree diameter was 52 .67 cm, and the measurer coefficient of variation was 8.16%. Only 6% of the tree diameter measurements were correct. Accuracy was lower at larger tree diameters. The average tree height was 31.38 m, and the measurer coefficient of variation of the tree height measurements was 21.86%. Crews measured tree heights with a significant bias. Only about 2% of the measurements were correct, with over 15% of the measurements being in error by ± 6.0 m or more. Height measurement was subject to larger and more sources of error. The results suggest that forest resouce managers should be more careful in using untrained crews in forest inventory work. They should establish rigorous field training programs, and outline and implement checkcruising guidelines.
Encounters in the ONC - observing imprints of star-disc interactions
Creators: name: Olczak, C.
name: Pfalzner, S.
name: Eckart, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The external destruction of protoplanetary discs in a clustered environment acts mainly due to two mechanisms: gravitational drag by stellar encounters and evaporation by strong stellar winds and radiation. If encounters play a role in disc destruction, one would expect that stars devoid of disc material would show unexpectedly high velocities as an outcome of close interactions. We want to quantify this effect by numerical simulations and compare it to observations. As a model cluster we chose the Orion Nebula Cluster (ONC). We found from the observational data that 8 to 18 stars leave the ONC with velocities several times the velocity dispersion. The majority of these high-velocity stars are young low-mass stars, among them several lacking infrared excess emission. Interestingly, the high-velocity stars are found only in two separate regions of the ONC. Our simulations give an explanation for the location of the high-velocity stars and provide evidence for a strong correlation between location and disc destruction. The high-velocity stars can be explained as the outcome of close three-body encounters; the partial lack of disc signatures is attributed to gravitational interaction. The spatial distribution of the high-velocity stars reflects the initial structure and dynamics of the ONC. Our approach can be generalized to study the evolution of other young dense star clusters, like the Arches cluster, back in time.
description: 12 pages, 9 figures, 1 table, accepted for publication in A&A, adopted changes after review by editors
Fannie Mae's National Housing Survey Monthly Home Purchase Sentiment Index (HPSI) and Key Indicators - December, 2023 (a subset of the complete monthly Fannie Mae National Housing Survey)
Creators: name: Foundation, Fannie Mae
Publisher: name: Roper Center for Public Opinion Research
Year: 2024

description: Economy on right or wrong track (3); personal financial situation (1); good or bad time to buy a house (3); good or bad time to sell a house (3); expect to move (1); direction house prices will go (3); direction rental prices will go (3); direction mortgage rates will go (1); difficulty getting a mortgage (1); home ownership (2).
title: Designing Water Conservation Landscapes Using Local Water Audit Data
Creators: name: Oates, Logan
Publisher: name: Utah State University
Year: 2020

description: In 2016, Eagle Mountain City (EMC) entered into a collaborative agreement with Utah State University Extension to complete several water conservation projects. These projects include Water Checks, landscape water conservation publications, educational programs, and a water-wise landscape design for Eagle Mountain City Hall and a nearby roundabout.
The Water Check program is sponsored by Utah State University’s (USU) Center for Water Efficient Landscaping (CWEL) and offers residential water efficiency checks to EMC residents. Data collected from the Water Check program includes lot size, square feet (sf) of turfgrass, sprinkler types, sprinkler efficiency, and existing watering schedules.
This thesis examines the data collected in the water efficiency checks to assist in the design of the low water use demonstration garden at Eagle Mountain City Hall. Significant findings in the data collection that assisted in the EMC design include the percentage of turfgrass, head type sprinkler efficiency, and scheduling data. This information was used in the EMC design to educate residents on water-wise landscaping pertinent to their locale.
The final product is an 18-page conceptual landscape plan for Eagle Mountain City Hall and the adjacent roundabout, as well as this written thesis, which explores the water audit data and discusses its application in the conceptual design. The conceptual design focuses on low water use plant design and efficient irrigation. A plant list handout was created and given to EMC for distribution at City Hall, which list consisted of an image of each plant, growth habits, hardiness zones, watering needs, and maintenance recommendations. This plant list is intended to be used by EMC residents to identify and select plants for their own homes.
Tropical precipitation clusters as islands on a rough water-vapor topography
Creators: name: Li, Ziwei
name: O'Gorman, Paul A.
name: Rothman, Daniel H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Tropical precipitation clusters exhibit power-law frequency distributions in area and volume (integrated precipitation), implying a lack of characteristic scale in tropical convective organization. However, it remains unknown what gives rise to the power laws and how the power-law exponents for area and volume are related to one another. Here, we explore the perspective that precipitation clusters are islands above a convective threshold on a rough column-water-vapor (CWV) topography. This perspective is supported by the agreement between the precipitation clusters and CWV islands in their frequency distributions as well as fractal dimensions. Power laws exist for CWV islands at different thresholds through the CWV topography, suggesting that the existence of power-laws is not specifically related to local precipitation dynamics, but is rather a general feature of CWV islands. Furthermore, the frequency distributions and fractal dimensions of the clusters can be reproduced when the CWV field is modeled to be self-affine with a roughness exponent of 0.3. Self-affine scaling theory relates the statistics of precipitation clusters to the roughness exponent; it also relates the power-law slopes for area and volume without involving the roughness exponent. Thus, the perspective of precipitation clusters as CWV islands provides a useful framework to consider many statistical properties of the precipitation clusters, particularly given that CWV is well-observed over a wide range of length scales in the tropics. However, the statistics of CWV islands at the convective threshold imply a smaller roughness than is inferred from the power spectrum of the bulk CWV field, and further work is needed to understand the scaling of the CWV field.
description: 22 pages, 9 figures
Twisted cohomology for hyperbolic three manifolds
Creators: name: Menal-Ferrer, Pere
name: Porti, Joan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Geometric Topology (math.GT)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 57M50, 20C15

description: For a complete hyperbolic three manifold M, we consider the representations of its fundamental group obtained by composing a lift of the holonomy with complex finite dimensional representations of SL(2,C). We prove a vanishing result for the cohomology of M with coefficients twisted by these representations, using techniques of Matsushima-Murakami. We give some applications to local rigidity.
title: Economic Sanctions: Their Ineffectiveness at Attaining Their Stated Foreign Policy Goals with Specific Reference to the Cuban Case
Creators: name: Ingram, Harold Lee
Publisher: name: Utah State University
Year: 2000

description: International economic sanctions are not singularly modem phenomena. In ancient Greece, Pericles of Athens enacted the Megerian Decree in 432 BC in response to hostile acts taken against it by neighboring Megera. Later, during the American Revolutionary War, Thomas Jefferson encouraged the use of sanctions as an effective tool of coercive foreign policy to be used against the colonists' enemies. Since then, following the historical precedence of economic acts like the Megerian Decree, economic sanctions have continued to be used as tools of coercive diplomatic policy. For example, following World War I, President Woodrow Wilson encouraged the use of economic sanctions as an equally strong, but less costly alternative to the use of military force. However, even though economic sanctions have long been used in attempts to force desired responses out of target nations (especially unilateral sanctions), they have seldom achieved their stated foreign policy goals.
Global Nature of Solar Coronal Shock Waves shown by Inconsistency between EUV Waves and Type II Radio Bursts
Creators: name: Fulara, Aarti
name: Kwon, Ryun-Young
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We re-examine the physical relationship between Extreme-UltraViolet (EUV) waves and type II radio bursts. It has been often thought that they are two observational aspects of a single coronal shock wave. However, a lack of their speed correlation hampers the understanding of their respective (or common) natures in a single phenomenon. Knowing the uncertainties in identifying true wave components from observations and measuring their speeds, we re-examine the speeds of EUV waves reported in previous literature and compare these with type II radio bursts and Coronal Mass Ejections (CMEs). This confirms the inconsistency between the speeds of EUV waves and their associated type II radio bursts. Second, CME speeds are found to have a better correlation with type II radio bursts than EUV waves. Finally, there exists a tendency for type II speeds and their range to be much greater than those of EUV waves. We demonstrate that the speed inconsistency is in fact an intrinsic tendency and elucidate the nature of a coronal shock wave consisting of both driven and non-driven parts. This suggests that the speed inconsistency would remain even if all other uncertainties were removed.
description: 9 pages, 3 figures, 1 table; Accepted for publication in The Astrophysical Journal Letters
Fine structure in the electronic density of states of Al-Ni-Co decagonal quasicrystal from ultrafast time-resolved optical reflectivity
Creators: name: Mertelj, T.
name: Oslak, A.
name: Dolinsek, J.
name: Fisher, I. R.
name: Kabanov, V. V.
name: Mihailovic, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We measured the temperature and fluence dependence of the time-resolved photoinduced optical reflectivity in a decagonal Al_{71.9}Ni_{11.1}Co_{17.0} quasicrystal. We find no evidence for the relaxation of a hot thermalized electron gas as observed in metals. Instead, a quick diffusion of the hot nonthermal carries ~40 nm into the bulk is detected enhanced by the presence of a broad ~1 eV pseudogap. From the relaxation dynamics we find an evidence for the presence of a fine structure in the electronic density of states around ~13 meV from the Fermi energy. The structure is related to a weak bottleneck for the carrier relaxation observed at low temperatures.
description: The sample composition was corrected
Implications of a High Angular Resolution Image of the Sunyaev-Zel'dovich Effect in RXJ1347-1145
Creators: name: Mason, B. S.
name: Dicker, S. R.
name: Korngut, P. M.
name: Devlin, M. J.
name: Cotton, W. D.
name: Koch, P. M.
name: Molnar, S. M.
name: Sievers, J. L.
name: Aguirre, J. E.
name: Benford, D.
name: Staguhn, J. G.
name: Moseley, H.
name: Irwin, K. D.
name: Ade, P. A. R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The most X-ray luminous cluster known, RXJ1347-1145 (z=0.45), has been the object of extensive study across the electromagnetic spectrum. We have imaged the Sunyaev-Zel'dovich Effect (SZE) at 90 GHz (3.3 mm) in RXJ1347-1145 at 10" resolution with the 64-pixel MUSTANG bolometer array on the Green Bank Telescope (GBT), confirming a previously reported strong, localized enhancement of the SZE 20" to the South-East of the center of X-ray emission. This enhancement of the SZE has been interpreted as shock-heated (> 20 keV) gas caused by an ongoing major (low mass-ratio) merger event. Our data support this interpretation. We also detect a pronounced asymmetry in the projected cluster pressure profile, with the pressure just east of the cluster core ~1.6 times higher than just to the west. This is the highest resolution image of the SZE made to date.
description: 9 pages, 7 figures; accepted for publication in The Astrophysical Journal
title: Chinese Gardens: Solutions for Urban Nature Deficit
Creators: name: Warner, Zachary K.
Publisher: name: Utah State University
Year: 2020

description: Research shows that time spent in nature is good for human health and well-being. However, as the world’s population becomes more concentrated in urban areas regular time in nature, especially extended time, is becoming more difficult to have. On the other hand, Chinese gardens can provide one solution to this problem because they have a unique way of providing a naturalistic space within a small area. Despite this fact, there aren’t many Chinese style gardens outside of China. Therefore, the objective of this thesis was to identify possible barriers to using Chinese garden design principles and construction techniques, then address them with a number of solutions.
As part of this effort the best literature was consulted including books and journal articles on Chinese garden design, history, and related fields. The information from literature was then compared to both Western practices and current development processes for Chinese gardens in the West to identify possible barriers. Many of the barriers were found to be related to cost, cultural differences, materials, laws and regulations, and education.
To address these barriers the literature was consulted, and a number of solutions sprung from the history of Chinese gardens as well as current literature. Overall, however, solutions for overcoming barriers to the use of Chinese garden design principles were found to be centered in foundational design objectives and principles. These objectives and principles were found to allow the flexibility needed for Chinese gardens to adapt to local circumstances and conditions. In the end following these ideas and principles will allow professionals to create gardens that are anywhere along a spectrum from fully Chinese in character to fully local in character.
2D Surface Brightness Modelling of Large 2MASS Galaxies I: Photometry and Structural Parameters
Creators: name: Ríos-López, Emmanuel
name: Añorve, Christopher
name: Ibarra-Medel, Héctor J.
name: López-Cruz, Omar
name: Alvira-Enríquez, Joaquín
name: Iacobuta, Gabriela
name: Valerdi, Mabel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have studied a sample of 101 bright 2MASS galaxies from the Large Galaxy Atlas (LGA), whose morphologies span from early to late-types. We have generated estimates for structural parameters through a two-dimensional (2D) surface brightness photometric decomposition in the three 2MASS bands (J, H, Ks). This work represents a detailed multi-component photometric study of nearby galaxies. We report total magnitudes, effective radii, concentration indices, among other parameters, in the three 2MASS bands. We found that the integrated total magnitudes of early-type galaxies (ETGs) measured on 2MASS LGA mosaics are ~0.35 mag dimmer, when compared with images generated from IRSA image tiles service; nevertheless, when comparing late-type galaxies (LTGs) we did not find any difference. Therefore, for ETGs we present the results derived on IRSA image tiles, while for LTGs we used data from the LGA mosaics. Additionally, by combining these structural parameters with scaling relations and kinematic data, we separated classical bulges from pseudobulges. We found that ~40 % of the objects in our sample are classified as pseudobulges, which are found preferentially in LTGs. Also, our findings confirm trends reported earlier in the distributions for some physical parameters, such as Sérsic index, B/T and q ratios. In general, our results are in agreement with previous one-dimensional studies. In a companion paper, we revise some of the scaling relations among global galaxy properties, as well as their interrelation with Supermassive Black Holes.
description: 24 pages, 17 figures, 6 tables. Accepted for publication in MNRAS (2021 August 9)
GoPro
Creators: Bispebjerg Hospital
Bispebjerg og Frederiksberg Hospital
Publisher: name: Rigsarkivet
Year: 2022

description: Formålet med GoPro har været sikre sagsstyring, vidensdeling og overholdelse af lovgivningen i forhold til arkivering. Systemet har været anvendt af medarbejderne i Direktionssekretariat mhp. at sikre effektive arbejdsgange.
Structure of spanning trees on the two-dimensional Sierpinski gasket
Creators: name: Chang, Shu-Chiuan
name: Chen, Lung-Chi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Consider spanning trees on the two-dimensional Sierpinski gasket SG(n) where stage $n$ is a non-negative integer. For any given vertex $x$ of SG(n), we derive rigorously the probability distribution of the degree $j \in \{1,2,3,4\}$ at the vertex and its value in the infinite $n$ limit. Adding up such probabilities of all the vertices divided by the number of vertices, we obtain the average probability distribution of the degree $j$. The corresponding limiting distribution $ϕ_j$ gives the average probability that a vertex is connected by 1, 2, 3 or 4 bond(s) among all the spanning tree configurations. They are rational numbers given as $ϕ_1=10957/40464$, $ϕ_2=6626035/13636368$, $ϕ_3=2943139/13636368$, $ϕ_4=124895/4545456$.
description: 32 pages, 5 figures, 1 table
title: Acoustic Material Characterization of Additively Manufactured Components
Creators: name: Claes, Leander
name: Jäger, Axel
name: Johannesmann, Sarah
name: Webersen, Manuel
name: Kupnik, Mario
name: Henning, Bernd
Publisher: name: AMA Service GmbH
Year: 2024

description: Additively manufactured or 3d printed components are commonly used for rapid prototyping or small series production purposes. Their mechanical properties, especially in the acoustic regime, are sparsely researched as of now. Therefore, we present a non-destructive measurement procedure to characterize the properties of additively manufactured components. We manufacture 3mm thick plates by fused deposition modeling of polylactic acid (PLA). Using focused laser radiation, broadband ultrasonic Lambwaves are excited in the plates via the photoacoustic effect. These waves are detected using a purposebuilt ultrasonic transducer for plate waves. The measurement signals processed are compared to the output of a plate waveguide model. In an inverse procedure, the material parameters of the model are optimized to yield estimates for the material properties of the sample. Using this approach, we analyze the influence of printing process parameters on the mechanic and acoustic properties of the manufactured specimens.
A High Yield of New Sightlines for the Study of Intergalactic Helium: Far-UV-Bright Quasars from SDSS, GALEX, and HST
Creators: name: Syphers, David
name: Anderson, Scott F.
name: Zheng, Wei
name: Haggard, Daryl
name: Meiksin, Avery
name: Chiu, Kuenley
name: Hogan, Craig
name: Schneider, Donald P.
name: York, Donald G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Investigations of He II Ly-alpha (304 A rest) absorption toward a half-dozen quasars at z~3-4 have demonstrated the great potential of helium studies of the IGM, but the current critically small sample size of clean sightlines for the He II Gunn-Peterson test limits confidence in cosmological inferences, and a larger sample is required. Although the unobscured quasar sightlines to high redshift are extremely rare, SDSS DR6 provides thousands of z>2.8 quasars. We have cross-correlated these SDSS quasars with GALEX GR2/GR3 to establish a catalog of 200 higher-confidence (~70% secure) cases of quasars at z=2.8-5.1 potentially having surviving far-UV (restframe) flux. We also catalog another 112 likely far-UV-bright quasars from GALEX cross-correlation with other (non-SDSS) quasar compilations. Reconnaissance UV prism observations with HST of 24 of our SDSS/GALEX candidates confirm 12 as detected in the far-UV, with at least 9 having flux extending to very near the He II break; with refinements our success rate is even higher. Our SDSS/GALEX selection approach is thereby confirmed to be an order of magnitude more efficient than previous He II quasar searches, more than doubles the number of spectroscopically confirmed clean sightlines to high redshift, and provides a resource list of hundreds of high-confidence sightlines for upcoming He II and other far-UV studies from HST. Our reconnaissance HST prism spectra suggest some far-UV diversity, confirming the need to obtain a large sample of independent quasar sightlines across a broad redshift range to assess such issues as the epoch(s) of helium reionization, while averaging over individual-object pathology and/or cosmic variance.
description: 32 pages, 7 figures, accepted by ApJ
title: Hardware Implementations of CCSDS Deep Space LDPC Codes for a Satellite Transponder
Creators: name: Sorensen, Dana R.
Publisher: name: Utah State University
Year: 2020

description: Error-correction coding is a technique that adds mathematical structure to a message, allowing corruptions to be detected and corrected when the message is received. This is especially important for deep space satellite communications, since the long distances and low signal power levels often cause message corruption. A very strong type of error-correction coding known as LDPC codes was recently standardized for use with space communications. This project implements the encoding and decoding algorithms required for a small satellite radio to be able to use these LDPC codes. Several decoder architectures are implemented and compared by their performance, speed, and complexity. Using these LDPC decoders requires knowledge of the received signal and noise levels, so an appropriate algorithm for estimating these parameters is developed and implemented. The LDPC encoder is implemented using a flexible architecture that allows the entire standardized family of ten LDPC codes to be encoded using the same hardware.
Stability of a Fully Polarized Ultracold Fermi Gas near Zero-Crossing of a p-wave Feshbach Resonance
Creators: name: Zinner, N. T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a fully polarized ultracold Fermi gas interacting through a p-wave Feshbach resonance. Using a two-channel model, we find the effective potential at the point where the p-wave scattering length goes to zero. Here the effective interaction provides attraction and one can therefore ask about the stability of the system. We calculate the energy density of the system in the Thomas-Fermi approximation, determine the profile of the gas, and the critical number of particle in the system as function of the relevant interaction parameters. The instability can be deduced from a simple breathing mode argument which explains the scaling found numerically. The critical particle number turns out to be extremely large unless the external confinement is very tight. We therefore conclude that the effect is insignificant for standard trapping potentials and that the magnetic dipole interaction is the important term at zero scattering length. However, for tight confinement as in an optical lattice higher-order corrections can become important.
description: Published version, 6 pages, 2 figures
A homomorphism theorem and a Trotter product formula for quantum stochastic flows with unbounded coefficients
Creators: name: Das, Biswarup
name: Goswami, Debashish
name: Sinha, Kalyan B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Operator Algebras (math.OA)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: We give a new method for proving the homomorphic property of a quantum stochastic ow satisfying a quantum stochastic differential equation with unbounded coefficients, under some further hypotheses. As an application, we prove a Trotter product formula for quantum stochastic ows and obtain quantum stochastic dilations of a class of quantum dynamical semigroups generalizing results of [5]
A semantic representation for translation of high-level algorithmic languages
Creators: name: Appelbe, William Frederick
Publisher: name: University of British Columbia
Year: 2010

description: Although new high-level programming languages continue to be proposed, major software development efforts are still devoted to developing translators for the current languages. As yet there is no clear methodology for designing and implementing translators; instead there are a large number of tools and techniques applicable to different aspects of translator development. This thesis proposes a new technique for structuring the development of translators for high-level algorithmic languages, based upon an intermediate graphical program representation called GRAIL. Using this approach, the semantic phase of the translator converts source language programs into a corresponding GRAIL representation, then subsequently into code for the target machine. The primary advantage of this approach is to simplify the task of developing translators for high-level algorithmic languages. GRAIL is designed to enable adaptable and efficient translators to be developed for a wide range of source languages. GRAIL was incorporated into a translator writing system, which was used to implement a translator for the programming language ASPLE. The ASPLE translator was highly adaptable, as both the syntax and semantics of ASPLE could be easily modified. The translator writing system demonstrated the feasibility of using GRAIL to implement adaptable translators, although the software used had limited capabilities.
title: An Evaluation of the Effects of Behavioral Skills Training on a Mindfulness-Based Protocol
Creators: name: Darby, Chealsy
Publisher: name: Utah State University
Year: 2020

description: This evaluation examined the effects of behavioral skills training on the correct implementation of a mindfulness-based protocol by direct support staff who provide services to adults with intellectual disabilities in a community, residential setting. Participants included two direct support staff who provide services to two different adults with intellectual disabilities who have a mindfulness-based protocol as an intervention for problem behavior described in their behavior support plan. The participants were exposed to a behavioral skills training package and were required to demonstrate mastery criteria of the mindfulness-based protocol as part of their regular job duties. The results of this evaluation show that when this behavioral skills training package was implemented, the percentage of correctly implemented mindfulness-based protocol steps increased.
Collimation and finite-size effects in suspended resonant guided-mode gratings
Creators: name: Toft-Vandborg, Christian
name: Parthenopoulos, Alexios
name: Darki, Ali Akbar
name: Dantan, Aurélien
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The optical transmission of resonant guided-mode gratings patterned on suspended silicon nitride thin films and illuminated at normal incidence with a Gaussian beam are investigated both experimentally and theoretically. Effects due to the beam focusing and its finite size are accounted for by a phenomenological coupled mode model whose predictions are found to be in very good agreement with the experimentally measured spectra for various grating structures and beam sizes, and which allow for a detailed analysis of the respective magnitude of these effects. These results are highly relevant for the design and optimization of such suspended structured films which are widely used for photonics, sensing and optomechanics applications.
description: 13 pages, 13 figures
Modeling long-range memory with stationary Markovian processes
Creators: name: Miccichè, Salvatore
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper we give explicit examples of power-law correlated stationary Markovian processes y(t) where the stationary pdf shows tails which are gaussian or exponential. These processes are obtained by simply performing a coordinate transformation of a specific power-law correlated additive process x(t), already known in the literature, whose pdf shows power-law tails 1/x^a. We give analytical and numerical evidence that although the new processes (i) are Markovian and (ii) have gaussian or exponential tails their autocorrelation function still shows a power-law decay =1/T^b where b grows with a with a law which is compatible with b=a/2-c, where c is a numerical constant. When a<2(1+c) the process y(t), although Markovian, is long-range correlated. Our results help in clarifying that even in the context of Markovian processes long-range dependencies are not necessarily associated to the occurrence of extreme events. Moreover, our results can be relevant in the modeling of complex systems with long memory. In fact, we provide simple processes associated to Langevin equations thus showing that long-memory effects can be modeled in the context of continuous time stationary Markovian processes.
description: 5 figures
The High-Mass End of the Black Hole Mass Function: Mass Estimates in Brightest Cluster Galaxies
Creators: name: Bonta', E. Dalla
name: Ferrarese, L.
name: Corsini, E. M.
name: Miralda-Escude', J.
name: Coccato, L.
name: Sarzi, M.
name: Pizzella, A.
name: Beifiori, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Hubble Space Telescope imaging and spectroscopic observations of three Brightest Cluster Galaxies, Abell 1836-BCG, Abell 2052-BCG, and Abell 3565-BCG, obtained with the Wide Field and Planetary Camera 2, the Advanced Camera for Surveys and the Space Telescope Imaging Spectrograph. The data provide detailed information on the structure and mass profile of the stellar component, the dust optical depth, and the spatial distribution and kinematics of the ionized gas within the innermost region of each galaxy. Dynamical models, which account for the observed stellar mass profile and include the contribution of a central supermassive black hole (SBH), are constructed to reproduce the kinematics derived from the Halpha and [N II](lambda 6548,6583) emission lines. Secure SBH detection with M_bh=3.61(+0.41,-0.50)x10^9 M_sun and M_bh=1.34(+0.21,-0.19)x10^9 M_sun, respectively, are obtained for Abell 1836-BCG and Abell 3565-BCG, which show regular rotation curves and strong central velocity gradients. In the case of Abell 2052-BCG, the lack of an orderly rotational motion prevents a secure determination, although an upper limit of M_bh < 4.60x10^9 M_sun can be placed on the mass of the central SBH. These measurements represent an important step forward in the characterization of the high-mass end of the SBH mass function.
description: 63 pages, 34 figures, 4 tables, accepted for publication by the Astrophysical Journal
Experimental Philosophy and Metaphysics
Creators: name: Torrengo, Giuliano
Publisher: name: Methode - Analytic Perspectives
Year: 2013

description: In a number of recent papers, advocates of the so-called â€œExperimental Philosophyâ€ movement have launched a quite radical attack against traditional philosophical methods â€“ such as conceptual analysis, thought experiments, and appeal to intuitions. Against such an attack, in this paper I defend the thesis that once we interpret the traditional methods of philosophical in-
quire in broadly Quinean terms, the sort of empirical evidence that experimental philosophers employ turns out to be irrelevant.
description: Methode - Analytic Perspectives, Vol 2, No 2 (2013): New perspectives for the Philosophy of Cognitive Science
A statistical test of emission from unresolved point sources
Creators: name: Slatyer, Tracy R.
name: Finkbeiner, Douglas P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We describe a simple test of the spatial uniformity of an ensemble of discrete events. Given an estimate for the point source luminosity function and an instrumental point spread function (PSF), a robust upper bound on the fractional point source contribution to a diffuse signal can be found. We verify with Monte Carlo tests that the statistic has advantages over the two-point correlation function for this purpose, and derive analytic estimates of the statistic's mean and variance as a function of the point source contribution. As a case study, we apply this statistic to recent gamma-ray data from the Fermi Large Area Telescope (LAT), and demonstrate that at energies above 10 GeV, the contribution of unresolved point sources to the diffuse emission is small in the region relevant for study of the WMAP Haze.
description: 11 pages, 7 figures. Final version, accepted by Mon. Not. R. Astron. Soc. The definitive version is available at www.blackwell-synergy.com.
J. J. Gibson - Un approccio ecologico alla percezione visiva
Creators: name: Dal Sasso, Davide
Publisher: name: Methode - Analytic Perspectives
Year: 2013

description: Mimesis Edizioni, Milano - Udine, 2013 - in corso di pubblicazione
pp. 496, ISBN 978-88-150-7172-9, â‚¬28,92.
description: Methode - Analytic Perspectives, Vol 2, No 2 (2013): New perspectives for the Philosophy of Cognitive Science
title: Testing Investment Strategies for Superior Predictive Ability
Creators: name: Baldwin, Jack K
Publisher: name: Utah State University
Year: 2020

description: When different models are tested on one data sample and repeatedly altered in order to be found significant, the results are likely spurious. This is data-snooping – an ever-growing problem in the finance industry likely due to fierce competition and developments in data processing capacity. In academia, although recognized as a deplorable practice, data-snooping is likewise pervasive perhaps as a result of poor incentive structures at both the university and publisher levels. I manifest the problem of data-snooping through multiple academic and industry examples and then summarize Halbert White and Peter Hansen’s offered solutions, White’s Reality Check and Hansen’s Test for Superior Predictive Ability. I demonstrate the application of their tests by examining several passive investment strategies applicable to recent market moves and report my results.
Component Actions of Liberated $\mathcal{N} = 1$ Supergravity and New Fayet-Iliopoulos Terms in Superconformal Tensor Calculus
Creators: name: Jang, Hun
name: Porrati, Massimo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explicitly compute the component action of certain recently discovered new $\mathcal{N} = 1$ supergravity actions which enlarge the space of scalar potentials allowed by supersymmetry and also contain fermionic interaction terms that become singular when supersymmetry is unbroken. They are the "Liberated Supergravity" introduced by Farakos, Kehagias and Riotto, and supergravities with a new Kahler-invariant Fayet-Iliopoulos term proposed by Antoniadis, Chatrabhuti, Isono, and Knoops. This paper is complementary to our previous papers [Phys. Rev. D 103 (2021), 025008 and 105006], in which new constraints on the coupling constants of those new theories were found. In this paper we spell out many details that were left out of our previous papers.
description: 37 pages
title: The Economic and Health Impacts of Community Gardens on Refugee Populations: CRIC Garden Case Study
Creators: name: Montoya, Joseph
Publisher: name: Utah State University
Year: 2020

description: The purpose of this paper is to examine the economic benefits of community gardens and incubator farms, both of which support the populations they serve from an economic viewpoint as well as socially, and as a benefit to public health and nutrition. The findings were gathered from the large body of research concerning the benefits of community gardens as well as program evaluation responses conducted with gardeners at the Cache Refugee and Immigrant Connection (CRIC) garden in Logan, Utah in 2020. They are also informed by experiences had and lessons learned while working as the garden manager. There is a wealth of information being circulated by researchers in the field about how the many ways community gardens help members of a community, especially those who are considered disadvantaged groups such as increased feelings of wellbeing associated with being outside in green spaces and an increase in the amount of nutritious foods consumed by those who participate in community gardens. This wealth of information is most likely only rivaled by the abundance of food produced at the CRIC garden, which is consumed by those who grow it and their families and is also freely given in gratitude for the opportunities presented to them. It is true that many people come together to gather the resources that are needed to make the garden possible. Without grant money and donations of time and capital the garden would not be possible. But when looked at through the lens of what it gives back, the amount of wealth spread around is hard to fully understand. The purpose of this paper is to look at the benefits to those who are involved with a specific community garden in Logan, Utah. The total value of this garden in terms of saving and contributions to users and the surrounding community has been established. These findings seek to quantify and qualify the full extent of the impacts the garden has on the gardeners and the community as a whole.
title: Investigating Mesospheric Mountain Waves and OH Temperature Dynamics Over Chile
Creators: name: Soward, David G.
Publisher: name: Utah State University
Year: 2020

description: Atmospheric gravity waves (GW) occur throughout the atmosphere, propagating from copious sources in the lower atmosphere into the upper neutral atmosphere and ionosphere. There are many sources of GW, most of them are associated with strong weather disturbances which are highly transient in nature. Another source of GW are strong winds blowing over prominent mountains that generate mountain waves (MW.) An important property of all of these waves is that they propagate upwards, carrying large amounts of energy and momentum which can be deposited in the upper atmosphere as the waves saturate and break. The Andes Lidar Observatory (ALO) was established in 2009 with the primary goal to investigate the dynamics of the mesosphere over the massive Andes Mountains. The Mesospheric Temperature Mapper (MTM), developed by Utah State University, was installed at ALO (30°S, 70°W) in Chile in 2009 with two goals: a) to investigate novel temperature signatures of MW expected over the Andes and b) to obtain seasonal measurements of mesospheric temperature over this isolated region. The MTM obtains these data by measuring the OH airglow emission from which the temperature of the OH layer and the GW activity can be obtained. This study builds on previous work and continues to show the close correlation between the MTM temperature and simultaneous overpass measurements of mesospheric temperature made by the SABER instrument on the NASA TIMED satellite. The MTM consistently revealed a warm bias (~5K) over several years. The TIMED satellite was launched in 2001 and continues to provide near global atmospheric temperature data. Furthermore, an initial examination of MW events is presented. Important properties such as temperature perturbation and event structure are analyzed. These parameters will provide an initial overview of wave activity in the region.
title: Fundamental Aspects of Black Holes
Creators: name: Ciafre, Jacob Fisher
Publisher: name: Utah State University
Year: 2021

description: The literature study here seeks to present the foundations of black hole physics in General Relativity. The report includes a discussion of the Kerr black hole metric, black hole entropy, particle creation, the laws of black hole mechanics, and a bilinear mass formula for the Kerr-Newman black hole solution.
title: Has the Other Shoe Dropped?: Ethiopia’s Rise and Fall as U.S. Supplier of Sub-Saharan African Footwear
Creators: name: Stubblefield, Katherine
name: Roop, Mary
Publisher: name: United States International Trade Commission
publisherIdentifier: https://ror.org/05hsggr76
publisherIdentifierScheme: ROR
Year: 2022

description: Historically, Sub-Saharan African (SSA) countries, including Ethiopia, have accounted for only a small
share of global footwear production. In 2011, U.S. imports of footwear from SSA totaled only $2.4
million, and Ethiopia accounted for only 28 percent. By 2018, however, Ethiopia had grown to become
the leading SSA supplier, accounting for 96 percent of the region’s $36.3 million in footwear exports to
the United States. Despite Ethiopia’s meteoric rise as a U.S. supplier of SSA footwear, challenges with
the local business environment, bottlenecks in global supply chains associated with the COVID-19
pandemic, and political strife have resulted in two years of significant export declines. This paper
provides an overview of Ethiopia’s footwear trade with the United States during the 2011 to 2020 period
and analyzes the key competitive advantages likely impacting Ethiopia’s rapid rise as SSA’s leading
exporter of footwear to the United States. Lastly, it reviews challenges and recent events that
contributed to the country’s fall as a supplier of U.S. footwear.
title: Survival Analysis: An Exact Method for Rare Events
Creators: name: Reutzel, Kristina
Publisher: name: Utah State University
Year: 2020

description: Conventional asymptotic methods for survival analysis work well when sample sizes are at least moderately sufficient. When dealing with small sample sizes or rare events, the results from these methods have the potential to be inaccurate or misleading. To handle such data, an exact method is proposed and compared against two other methods: 1) the Cox proportional hazards model and 2) stratified logistic regression for discrete survival analysis data.
title: Hazard Analysis of a Segment of Highway SR-12 through Bryce Canyon National Park, Southern Utah
Creators: name: Reed, Tomsen
Publisher: name: Utah State University
Year: 2020

description: Over 2.6 million people travel along highway SR-12, a National Scenic Byway, through Bryce Canyon in southern Utah each year. This highway is a major thoroughfare for tourists traveling to Bryce Canyon National Park, Grand Staircase-Escalante National Monument, and other scenic attractions. SR-12 is susceptible to rockfall and landslide hazards where it descends from the Paunsaugunt Plateau into Tropic Canyon, and these hazards have potential consequences of economic loss due to travel delays for tourists and commodities, and possible loss of life. Rockfall could have devastating effects at this location because of the traffic volume, sharp turns, low visibility, and steep drop-offs. A landslide on SR-12 in 2017 prompted emergency repairs that cost over $2.6 million dollars. SR-12 runs below a cliff band of the relatively weak limestones and mudstones, the Tertiary Claron Formation, that make up the colorful hoodoos and erosional features of Bryce Canyon. The Oligocene- to Miocene-aged Ruby’s Inn Thrust Fault has juxtaposed a resistant, cliff-forming Claron layer on a weak, slope-forming layer of the Claron Formation, creating the potential for rockfall that could impact the roadway and associated travel. The research hypothesis of this project is that the Ruby’s Inn Thrust Fault and associated fracturing have weakened the rocks in this cliff band creating a rockfall hazard. Research objectives are 1) to characterize cliff-forming lithologies within the study area; 2) to examine the fracture characteristics in cliffs using scanline techniques; 3) to measure the topography and assess physical properties of the toe slope; and 4) to assess rockfall potential and identify contributing factors for hazards posed by this cliff band in between SR-12 milepost markers 15 and 15.7. Field data collected included linear scanlines along the thrust fault and at a control location site, sample collection, contact geologic mapping, and lithologic unit descriptions. Laboratory testing was performed to assess physical characteristics of the rock, soil, and fracture infillings. These data are used for kinematic analyses of the cliff band to assess failure potential. Rockfall analyses were also performed to assess the probability of rocks reaching the roadway after failure.