155 research outputs found
I Went to the End of Time, and This is What I Found: A Look into the Making of a Solo Performance
No full textabstract: I'll go to the end of time for you (and you don't even know my name) is an evening-length solo performance created and performed by Kristopher K.Q. Pourzal. It premiered November 8-10, 2013 in the Margaret Gisolo Dance Theatre of Arizona State University. The solo was the culmination (suspension, really) of a wild creative journey, the distillation of a process that initially involved several collaborators. Through a series of neurotically/erotically repetitive episodes of self-composed song, text, and dance, the work mines questions of the desire to be seen and the desire to feel alive. The conventions and constructs of the proscenium stage are both utilized and subverted in examining this platform as uniquely suited for revealing the nature of these experiences and their potential relationship. This document is primarily an account of the show's process--its before and after--and serves as a site of exploration, explanation, analysis, reflection, questioning, and ultimately furtherance of the practice-based research made manifest in the performances.Dissertation/ThesisM.F.A. Dance 201
Classification of 2-symbol orthogonal arrays of even-strength t and t + 2 columns up to OD-equivalence
No full textBulutoglu and Ryan [Australas. J. Combin. 70 (2018), 362–385] developed the concept of OD-equivalence of 2-symbol orthogonal arrays (OAs) that captures the symmetries present in the even-strength cases that cannot be captured by array isomorphism. In this paper, we improve upon the classification results up to isomorphism of Stufken and Tang [Ann. Stat. 35 (2007), 793–814] by classifying all non-OD-equivalent 2-symbol OAs of even-strength t with t + 2 columns and index λ. The classification results up to OD-equivalence that we obtain are significantly simpler than the classification results up to isomorphism of Stufken and Tang in the aforementioned paper. © The author(s)
Ultrafast extreme ultraviolet spectroscopy of transition metal dithiolate coordination complexes
No full textTransient tabletop M-edge x-ray absorption near edge structure (XANES) spectroscopy using extreme ultraviolet (XUV) light is used as a tool to interrogate the evolution of the metal center in a series of transition metal dithiolate complexes. The behavior of these molecules after absorption of light has implications for the development of catalysts and photosensitizers using earth-abundant transition metals. The cobalt dithiolene complex, [Co(bdt)2]- (bdt = 1,2-benzendithiolate), is primarily known for its ligand-noninnocence and participation in the catalytic production of hydrogen. After excitation of [Co(bdt)2]- with visible light, its relaxation dynamics are tracked with a combination of optical and transient M-edge XANES spectroscopic techniques that allow for the identification of a ligand-to-metal charge transfer (LMCT) excited state whose spin can be determined by comparison to semi-empirical ligand field multiplet calculations. The combination of optical and x-ray techniques is crucial to identifying relaxation processes that affect predominantly either the metal or the ligand. NEVPT2 calculations are used to understand its optical absorption spectrum and rationalize the timescale by which the molecule relaxes to the ground state. A set of three of cobalt tris(dithiolate) complexes with varying ligand field strength have been studied using optical transient absorption spectroscopy which shows a difference of a factor of at least ten in their excited state lifetimes. Understanding the origin of this change is important to further extending the lifetimes of photosensitizers. The sensitivity of M-edge XANES spectroscopy to the oxidation and spin state of a metal enabled the identification of the excited states involved in the relaxation of all three complexes. The contribution of a long-lived charge transfer state was ruled out and the final excited state was determined to be a 5T state. Finally, a nickel dithiocarbamate complex, Ni(dedtc)2 (dedtc = diethyldithiocarbamate, S2CNEt2) was studied as a simple analogue of a square planar nickel-centered hydrogen catalyst. Examination of this complex and the equivalent copper and zinc complexes reveal new phenomena in XUV spectroscopy, including dependence of the ligand absorbance on the metal center and observation of a ligand-based change in absorbance beneath the nickel M-edge after LMCT excitation.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-05-01The student, Kristopher Benke, accepted the attached license on 2021-04-12 at 10:11.The student, Kristopher Benke, submitted this Dissertation for approval on 2021-04-12 at 10:46.This Dissertation was approved for publication on 2021-04-14 at 11:42.DSpace SAF Submission Ingestion Package generated from Vireo submission #16283 on 2021-09-16 at 17:02:51Made available in DSpace on 2021-09-17T02:34:23Z (GMT). No. of bitstreams: 3
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The geometry in geometric algebra
No full textThesis (M.S.) University of Alaska Fairbanks, 2014We present an axiomatic development of geometric algebra. One may think of a geometric algebra as allowing one to add and multiply subspaces of a vector space. Properties of the geometric product are proven and derived products called the wedge and contraction product are introduced. Linear algebraic and geometric concepts such as linear independence and orthogonality may be expressed through the above derived products. Some examples with geometric algebra are then given.Chapter 1: Preliminaries -- Chapter 2: The geometry of blades -- Chapter 3: Examples with geometric algebra -- Chapter 4: Appendix -- 4.1. Construction of a geometric algebra -- References
Orthogonal Arrays and Legendre Pairs
No full textWell-designed experiments greatly improve test and evaluation. Efficient experiments reduce the cost and time of running tests while improving the quality of the information obtained. Orthogonal Arrays (OAs) and Hadamard matrices are used as designed experiments to glean as much information as possible about a process with limited resources. However, constructing OAs and Hadamard matrices in general is a very difficult problem. Finding Legendre pairs (LPs) results in the construction of Hadamard matrices. This research studies the classification problem of OAs and the existence problem of LPs. In doing so, it makes two contributions to the discipline. First, it improves upon previous classification results of 2-symbol OAs of even-strength t and t+2 columns. Second, it presents previously unknown impossible values for the dimension of the convex hull of all feasible points to the LP problem improving our understanding of its feasible set
Nutritional Justice Action Plan
No full textYou are a part of a collegewide effort to increase access to education and empower students through "open pedagogy." Open pedagogy is a "free access" educational practice that places you - the student - at the center of your own learning process in a more engaging, collaborative learning environment. The ultimate purpose of this effort is to achieve greater social justice in our community in which the work can be freely shared with the broader community. This is a renewable assignment that is designed to enable you to become an agent of change in your community through the framework of the United Nations Sustainable Development Goals (SDGs). For this work, you will integrate the disciplines of Sociology and Nutrition to achieve SDG #2: Zero Hunger with a focus on Target 2.1
The Dimension of an orbitope based on a solution to the Legendre pair problem
No full textThe Legendre pair problem is a particular case of a rank-1 semidefinite description problem that seeks to find a pair of vectors (u,v) each of length ℓ such that the vector (u⊤,v⊤)⊤ satisfies the rank-1 semidefinite description. The group (Zℓ×Zℓ)⋊Z×ℓ acts on the solutions satisfying the rank-1 semidefinite description by ((i,j),k)(u,v)=((i,k)u,(j,k)v) for each ((i,j),k)∈(Zℓ×Zℓ)⋊Z×ℓ. By applying the methods based on representation theory in Bulutoglu [Discrete Optim. 45 (2022)], and results in Ingleton [Journal of the London Mathematical Society s(1-31) (1956), 445-460] and Lam and Leung [Journal of Algebra 224 (2000), 91-109], for a given solution (u⊤,v⊤)⊤ satisfying the rank-1 semidefinite description, we show that the dimension of the convex hull of the orbit of u under the action of Zℓ or Zℓ⋊Z×ℓ is ℓ−1 provided that ℓ=pn or ℓ=pqi for i=1,2, any positive integer n, and any two odd primes p,q. Our results lead to the conjecture that this dimension is ℓ−1 in both cases. We also show that the dimension of the convex hull of all feasible points of the Legendre pair problem of length ℓ is 2ℓ−2 provided that it has at least one feasible point
Nutritional Injustice Public Service Announcement
No full textYou are a part of a collegewide effort to increase access to education and empower students through "open pedagogy." Open pedagogy is a "free access" educational practice that places you - the student - at the center of your own learning process in a more engaging, collaborative learning environment. The ultimate purpose of this effort is to achieve greater social justice in our community in which the work can be freely shared with the broader community. This is a renewable assignment that is designed to enable you to become an agent of change in your community through the framework of the United Nations Sustainable Development Goals (SDGs). For this work, you will integrate the disciplines of Sociology and Nutrition to achieve SDG #2: Zero Hunger with a focus on Target 2.1.Assignment Guideline
Nutritional Justice stakeholder analysis/ power analysis/ systems analysis/ infographic
No full textYou are a part of a collegewide effort to increase access to education and empower students through "open pedagogy." Open pedagogy is a "free access" educational practice that places you - the student - at the center of your own learning process in a more engaging, collaborative learning environment. The ultimate purpose of this effort is to achieve greater social justice in our community in which the work can be freely shared with the broader community. This is a renewable assignment that is designed to enable you to become an agent of change in your community through the framework of the United Nations Sustainable Development Goals (SDGs). For this work, you will integrate the disciplines of Sociology and Nutrition to achieve SDG #2: Zero Hunger with a focus on Target 2.1.Assignment Guideline
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