44 research outputs found

    A Working Paper*: Quality of Life of Rural Nebraskans: How are they Doing and What is in the Future?

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    TABLE OF CONTENTS EXECUTIVE SUMMARY.............................................................................. i INTRODUCTION ............................................................................................... 1 METHODOLOGY AND RESPONDENT PROFILE....................................... 2 FINDINGS ................................................................................................ 4 Global Well-Being (Figure 1)............................... 4 Change in the Modern World (Figure 2)...............................6 Personal Well-Being............................... 6 Availability of Services and Amenities (Figure 3)............................ 8 Dissatisfaction with Services and Amenities (Figure 4)........................... 9 Dissatisfaction with Services/Amenities by Region (Figure 5)...................... 10 Dissatisfaction with Services/Amenities by Community Size (Figure 6)............ 12 Dissatisfaction with Services/Amenities by Income Level (Figure 7)............... 13 CONCLUSIONS ................................................................ 1

    Ligand hydrogenation during hydroformylation catalysis detected by in-situ high-pressure infra-red spectroscopic analysis of a rhodium/phospholene-phosphite catalyst

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    Phospholane-phosphites are known to give highly unusual selectivity’s towards branched aldehydes in the hydroformylation of terminal alkenes. This paper describes the synthesis of hitherto unknown unsaturated phospholene-borane precursors and their conversion to the corresponding phospholene-phosphites. The relative stereochemistry of one of these ligands, and it’s Pd complex was assigned with the aid of X-ray crystal structure determinations. These ligands were able to approach the level of selectivity observed for phospholane-phosphites in the rhodium catalysed hydroformylation of propene. High-Pressure-Infra-Red (HPIR) spectroscopic monitoring of the catalyst formation revealed that whilst the catalysts show good thermal stability with respect to fragmentation, the C=C bond in the phospholene is slowly hydrogenated in the presence of rhodium and syngas. The ability of this spectroscopic tool to detect even subtle changes in structure, remote from the carbonyl ligands underlines the usefulness of HPIR spectroscopy in hydroformylation catalyst development.Peer reviewe

    The Grizzly, May 4, 1993

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    Yeltsin Receives Vote of Confidence • Snakes, Crocs, and Turtles: Reptile World Comes to Ursinus • $10,000 Scholarship Awarded to Ursinus Sophomore • Bernie Bernie Headflap Plays Wismer Lower Lounge • Exam Schedule • U.S.G.A. Minutes • Student Art Awards Given • Sports Shortshttps://digitalcommons.ursinus.edu/grizzlynews/1317/thumbnail.jp

    Current and Nascent SETI Instruments

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    Here we describe our ongoing efforts to develop high-performance and sensitive instrumentation for use in the search for extra-terrestrial intelligence (SETI). These efforts include our recently deployed Search for Extraterrestrial Emissions from Nearby Developed Intelligent Populations Spectrometer (SERENDIP V.v) and two instruments currently under development; the Heterogeneous Radio SETI Spectrometer (HRSS) for SETI observations in the radio spectrum and the Optical SETI Fast Photometer (OSFP) for SETI observations in the optical band. We will discuss the basic SERENDIP V.v instrument design and initial analysis methodology, along with instrument architectures and observation strategies for OSFP and HRSS. In addition, we will demonstrate how these instruments may be built using low-cost, modular components and programmed and operated by students using common languages, e.g. ANSI C.Comment: 12 pages, 5 figures, Original version appears as Chapter 2 in "The Proceedings of SETI Sessions at the 2010 Astrobiology Science Conference: Communication with Extraterrestrial Intelligence (CETI)," Douglas A. Vakoch, Edito

    On the functional group tolerance of ester hydrogenation and polyester depolymerisation catalysed by ruthenium complexes of tridentate aminophosphine ligands

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    The synthesis of a range of phosphine-diamine, phosphine-amino-alcohol, and phosphine-amino-amide ligands and their ruthenium(II) complexes are reported. Five of these were characterised by X-ray crystallography. The activity of this collection of catalysts was initially compared for the hydrogenation of two model ester hydrogenations. Turnover frequencies up to 2400 h-1 were observed at 85 oC. The catalysts turnover, albeit slowly at near ambient temperatures. Using a phosphine diamine RuII complex that was identified as the most active catalyst, a range of aromatic esters were reduced in high yield. The hydrogenation of alkene-, diene-, and alkyne functionalised esters was also studied. Substrates with a remote, but reactive terminal alkene substitutent could be reduced chemoselectively in the presence of 4-dimethylaminopyridine (DMAP) co-catalyst. The chemoselective reduction of the ester function in conjugated dienoate ethyl sorbate could deliver (2E,4E)-hexa-2,4-dien-1-ol, a precursor to leaf alcohol. The mono-unsaturated alcohol (E)-hex-4-en-1-ol was produced with reasonable selectivity, but complete chemoselectivity of C=O over the diene is elusive. High chemoselectivity for the reduction of an ester over an alkyne group was observed in the hydrogenation of an alkynoate for the first time. The catalysts were also active in the depolymerisation reduction of samples of waste PET to produce benzene dimethanol. These depolymerisations were found to be poisoned by the ethylene glycol side product, although good yields could still be achieved.PostprintPeer reviewe

    The Grizzly, October 5, 1993

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    Girls\u27 Pledging Returns Full-Force! • India Shattered by Earthquakes • Acting PA Governor Will Hold TV Town Meeting at Ursinus • Freshman to Compete in Karate\u27s World Cup • Henry Moore Exhibit Opens Today • Charles Fambrough Quintet to Play Ursinus • Editorial: Pledging; Wellness Center • Intramurals Begin: Sign Up! • Bears Crush Garnet Into Pebbleshttps://digitalcommons.ursinus.edu/grizzlynews/1320/thumbnail.jp

    The Grizzly, November 2, 1993

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    Delta Pi Helps Out Local Church • Singel Discusses Health Care • Pi Omega Delta Awarded Banner for Blood Drive Success • Red and Gold Day a Success • Ursinus Student Has Heart • U.S. Economy Improving • U.S.G.A. Minutes • Chinese-American Novelist to Speak • Jackie Guerra: A Flop? • Literary Society • Choir to Perform Saturday • Branker Receives SAI Award • Vs.: Pearl Jam Tries to Follow a Ten • Photo Presentation Spotlights Homeless • Pencil Lovers Repressed at Ursinus • Dr. Margot Kelley Bursts my Bubble • Freshman Class to Hold Date Auction • Renowned Psychiatrist Indicted on Murder Charges • Sports Review • Intramural Volleyball to Begin November 11 • Edens and Guenther: UC Football\u27s Dynamic Duohttps://digitalcommons.ursinus.edu/grizzlynews/1323/thumbnail.jp

    The Grizzly, October 27, 1992

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    UC Helping Out • Ursinus Welcomes David • John Cafferty Coming to UC • Looking Forward, Not Inward • Halloween Party • Where They Stand • Delta Pi and Phi Psi Scare Collegeville Kids • Character is an Issue • Letters to the Editor: On Campus Safety; We Can\u27t Ignore Pain and Suffering • The Need for a Coffeehouse • Football Makes it Two in a Rowhttps://digitalcommons.ursinus.edu/grizzlynews/1302/thumbnail.jp

    The Grizzly, February 9, 1993

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    Novelist Reed to Satire P.C. • New Twists on Pledging • Quilt Weaves Its Way to Ursinus • Doctor Fletcher, UC Professor Emeritus, Hospitalized • Airband is Coming • Coffee House Counts on a Big Semester • Senior Profile: Lynn Cunnane • Fox\u27s Latest Teensomething • A Degree is not Enough Today • The Absurdity of the Circular Argument • U.C. Gets Bad P.R.https://digitalcommons.ursinus.edu/grizzlynews/1309/thumbnail.jp
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