163 research outputs found
Trophic Interactions And The Efficacy Of Milfoil Weevils For Biocontrol Of Eurasian Watermilfoil In Wisconsin Lakes
No full textEurasian water-milfoil (Myriophyllum spicatum L., henceforth “EWM”) is the most heavily managed nuisance submersed aquatic plant in the United States. EWM’s rapid spring growth and formation of dense surface mats inhibits native macrophyte communities, serves as poor-quality habitat for fish and macroinvertebrates, impacts recreation, and can clog water supply infrastructure. The milfoil weevil (Euhrychiopsis lecontei Dietz) has been associated with EWM declines in several states, though natural weevil densities are generally too small to effect control. Augmentative biocontrol has had varied success and fish predation may account for high weevil mortality. Weevils were augmented in 4 northern Wisconsin lakes in summer 2013. In summer 2014, I collected invertebrates associated with EWM plus 442 bluegill (Lepomis macrochirus Rafinesque) diet samples from the 4 study lakes. Overall, chironomids and oligochaetes were the dominant invertebrates associated with plants, while chironomids and Daphnia spp. constituted up to 27.2% and 24.0% of the fish diets, respectively. Milfoil weevils were found in 2.9% of diet samples examined. Weevil larvae were preyed upon more frequently than adults (94.2% of weevils consumed) and sometimes occurred in high numbers within single diet samples. Since the larval stage contributes the most to EWM damage, selective predation on this stage may limit its use as a control agent
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
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
BENKE-DISSERTATION-2021.pdf: 2425264 bytes, checksum: 1309f977d92270d74397cd3146a8dc91 (MD5)
Benke_Kristopher_Dissertation.docx: 11158473 bytes, checksum: af803d0e32292daaea82fd2150cede26 (MD5)
LICENSE.txt: 4213 bytes, checksum: e4b94f96dec9482c464d7086c4182278 (MD5)
Previous issue date: 2021-04-14Embargo set by: Seth Robbins for item 118497
Lift date: 2023-09-17T02:34:57Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemAuthor requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Onl
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
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
Atmospheric pressure chemical vapor deposition of aluminum oxide for silicon surface passivation—background and materials science
No full textThe author provides a general background on atmospheric pressure chemical vapor deposition (APCVD) of Al2O3, from its origins to more recent research, focusing on surface passivation applications for solar cells and the composition and structure of the APCVD Al2O3-Si interface. Chapter Contents: • 6.1 Background on atmospheric pressure chemical vapor deposition • 6.2 Composition and structure of the APCVD Al2O3-Si interface • References
A field test on the effectiveness of milfoil weevil for controlling Eurasian watermilfoil in Wisconsin lakes
No full textReview of \u3cem\u3eThe Loyal West: Civil War and Reunion in Middle America\u3c/em\u3e by Matthew E. Stanley
No full textInterest in Civil War memory and post–Civil War sectional reconciliation has expanded greatly in recent years, as two 2016 historiographical essays attest.1 Matthew E. Stanley\u27s new book, The Loyal West: Civil War and Reunion in Middle America is thus well timed to make an important contribution to our evolving understanding of the process of sectional reconciliation in the decades following the Civil War. With his focus on Kentucky\u27s northern neighbors in the lower portions of Illinois, Indiana, and Ohio, the editorial staff of the Register of the Kentucky Historical Society believe Stanley\u27s book will help historians better understand the role Kentucky played in the events of the late nineteenth and early twentieth century, which saw a white supremacist version of Civil War memory eclipse an emancipationist version nationally.
We have asked four nineteenth-century historians to consider Stanley\u27s book from varying perspectives. M. Keith Harris teaches history at a private high school in Los Angeles, California. He is the author of Across the Bloody Chasm: The Culture of Commemoration among Civil War Veterans (2014) and is currently writing a book on D. W. Griffith\u27s controversial 1915 silent film, The Birth of a Nation. Anne E. Marshall is an associate professor of history at Mississippi State University and the author of Creating a Confederate Kentucky: The Lost Cause and Civil War Memory in a Border State (2012). James Marten is professor and chair of the history department at Marquette University. His most recent books are Sing Not War: The Lives of Union and Confederate Veterans in Gilded Age America (2011) and America\u27s Corporal: James Tanner in War and Peace (2014). Kristopher Maulden is a visiting assistant professor of history at Columbia College in Missouri. He is completing a book manuscript on the influence of Federalist politics and federal policy in the Ohio River Valley, and he is engaged in a study of nineteenth-century Ohio newspaper editor Charles Hammond. Finally, the author of The Loyal West, Matthew E. Stanley, assistant professor of history at Albany State University, will respond to the reviews
- …
