2,619 research outputs found
Thukydides erklärt von J. Classen. l ter Band (Introduction, premier livre) bearbeitet von J. Stéup
No full textReinach Théodore. Thukydides erklärt von J. Classen. l ter Band (Introduction, premier livre) bearbeitet von J. Stéup. In: Revue des Études Grecques, tome 10, fascicule 37,1897. p. 123
Thukydides erklärt von J. Classen. l ter Band (Introduction, premier livre) bearbeitet von J. Stéup
No full textReinach Théodore. Thukydides erklärt von J. Classen. l ter Band (Introduction, premier livre) bearbeitet von J. Stéup. In: Revue des Études Grecques, tome 10, fascicule 37,1897. p. 123
Classen Office Burglars Ransack Place
No full textPhotograph used for a story in the Oklahoma Times newspaper. Caption: "J.C. Farris, patrolman, inspects the litter left by thieves in the principal's office at Classen high school when called there by George L. Nichols, boiler tender, employed at he school, who discovered the burglary.
Relationships Among Vision, Visual Attention, and Fitness to Drive in Adults With Multiple Sclerosis
No full textAbstract
Date Presented 4/1/2017
We quantified the relationships among visual abilities, visual attention, and fitness to drive in 30 adults with multiple sclerosis. Visual acuity and visual processing speed correlated with critical driving errors (predictive of crashes) may be useful to identify potential at-risk drivers.
Primary Author and Speaker: Sarah Krasniuk
Contributing Authors: Sherrilene Classen, Sarah A. Morrow</jats:p
Visual Attention Cut Points Predicting Fitness to Drive in People With Parkinson’s Disease
No full textAbstract
Date Presented 4/1/2017
People with Parkinson’s disease (PD) have impaired visual attention affecting driver fitness. This study presents cut points to demonstrate that visual attention is an early and persistent impairment in PD drivers and accurately predicts failing or passing an on-road assessment.
Primary Author and Speaker: Sherrilene Classen
Contributing Authors: Karla Crawford, Sarah Jenniex</jats:p
Determination of the dimerization equilibrium constants of omeprazole and Pirkle's alcohol through optical-rotation measurements
No full textA new procedure to measure the equilibrium constants for the dimerization (homochiral and heterochiral) reactions of enantiomers in solution was applied to two different compounds, namely omeprazole and Pirkle's alcohol, both in CHCl3. This procedure is based on the measurement of the optical rotation of the solution as a function of its composition, which exhibits a nonlinear dependence on the enantiomer enrichment. Such nonlinearity depends on the extent of dimerization, and it is a strong effect in the case of omeprazole, whose equilibrium constants are 14.0 +/- 3.5 l/mol and 25.2 +/- 4.0 l/mol for the formation of homochiral and of heterochiral dimers, respectively. Pirkle's alcohol exhibits a weaker effect that allows only to estimate the order of magnitude of these constants, i.e., ca. 0.10 and 0.34 l/mol, respectively
Driving Intervention for Returning Combat Veterans: Interim Analysis of a Randomized Controlled Trial
No full textAbstract
Date Presented 3/31/2017
Motor vehicle collisions are a leading cause of deaths for combat veterans, and effective occupational therapy driving interventions (OT–DIs) are needed. We conducted an analysis of an efficacy trial comparing an OT–DI with traffic safety education and demonstrated a reduction in driving errors for the OT–DI group.
Primary Author and Speaker: Sherrilene Classen
Additional Authors and Speakers: Sandra Winter
Contributing Authors: Charles Levy, Abraham Yarney, Miriam Monahan</jats:p
Investigations on Arabinogalactan-Proteins from Triticum aestivum L., Secale cereale L. and Avena sativa L.
No full textAus dem wässrigen Extrakt der Früchte von Triticum aestivum L., Secale cereale L. und Avena sativa L. wurden hochmolekulare Fraktionen isoliert und aus diesen dann erstmals mit (β-D-Glc)3-Yariv-Phenylgykosid (Yariv-Reagenz) Arabinogalactan-Proteine (AGPs) isoliert. Eine Charakterisierung der AGPs hinsichtlich ihres Kohlenhydrat- und Proteinanteils ergab, dass das Proteoglykan aus Weizen 5,5% (m/m), Roggen-AGP 6,3% (m/m) und Hafer-AGP 5,4% (m/m) Protein enthielt, wobei die Aminosäuren Ala, Hyp, Ser, Gly und Glx die dominierenden Aminosäuren darstellten. Der stark verzweigte Kohlenhydratanteil der Makromoleküle zeigte in der Bindungstyp-Analyse die Grundstruktur eines typischen AGPs mit einem 1,3-, 1,6- und 1,3,6-verknüpften pyranosidischen Galactosegrundgerüst, welches furanosidische Arabinosereste in Position 3 und 6 tragen kann. Diese traten als terminale Arabinose auf. Weiterhin wird die Anwesenheit von 1,5-verknüpften Oligo-Arabinoseketten vermutet. Die Erstellung eines Strukturmodells des AGPs aus Getreide stützt sich zudem auf die freigesetzten Zucker durch eine enzymatische Hydrolyse von Hafer-AGP.
Neben der Strukturaufklärung wurden die AGPs im Weizenkeimling und in der Haferpflanze fluoreszenzmikroskopisch lokalisiert. Dazu wurde das synthetische Yariv-Reagenz, welches spezifisch an AGPs bindet, zur Immunlokalisierung eingesetzt. Es wurden polyklonale Antikörper gegen Yariv-Reagenz generiert, um damit Querschnitte aus der Wurzeln und dem Sproß der Haferpflanze zu inkubieren, die vorher mit Yariv-Reagenz behandelt worden waren. Nach Zusatz von FITC-markierten Sekundärantikörpern wurden die Schnitte durch Konfokale Laser-Raster Mikroskopie (Confocal Laser Scanning Microscopy = CLSM) analysiert. Die AGPs wurden in der Wurzel und im Sproß der Haferpflanze vornehmlich im xylematischen Leitbündelbereich lokalisiert; hier waren Tüpfelkanäle deutlich markiert. Weiterhin wurde eine Immunmarkierung von Hafer-Spross und-Wurzel mit einem monoklonalen Antikörper durchgeführt, der eigens gegen Hafer-AGP generiert wurde. Hier wurden insbesondere in den Zellwänden des Phloems AGPs lokalisiert.From the high molecular weight fraction of aqueous extracts from fruits of Triticum aestivum L., Secale cereale L. und Avena sativa L., arabinogalactan-proteins (AGPs) were isolated by precipitation with (β-D-Glc)3 Yariv phenylgycoside (Yariv-reagent) for the first time. Characterization of AGPs with regard to amino acid composition and structure of the polysaccharide moiety resulted in a structural model for cereal AGPs. The protein content of the AGP from wheat was 5,5% (w/w), protein-content of rye-AGP was 6,3% and oat-AGP 5,4% with the dominating amino acids Ala, Hyp, Ser, Gly and Glx. The highly branched polysaccharide moiety shows a linkage composition typical of AGPs with 1,3-, 1,6- and 1,3,6-linked galactopyranosyl residues and arabinofuranosyl residues predominantly as terminal residues in position 3 and 6 of galactose. Short oligo-arabinose-chains seem to be also present in the carbohydrate-part of AGP. Additionally, liberated sugars after enzymatic hydrolyses of oat-AGP gave important conclusions to set a structural model.
Furthermore, localization of AGPs in plant tissue of oat has been accomplished. Yariv-reagent is known to bind specifically to AGPs. For immunolocalization, polyclonal Yariv-reagent-antibodies have been generated and were used to label Yariv-treated thin sections of shoots and roots from oat. After addition of FITC-conjugated secondary antibodies, the sections were analyzed by confocal laser scanning microscopy (CLSM). AGPs were mainly detected in the area of the xylem, especially there was a strong labelling of the pit canals. Additionally, immunolocalisation was done with a monoclonal antibody generated against oat-AGP. AGPs could be detected in the cell wall of the phloem in shoots and roots of oat via CLSM with a FITC conjugated secondary antibody
Single- and Multi-carrier Quadrature Amplitude Modulation: Principles and Applications for Personal Communications, WATM and Broadcasting: 2nd
No full textSingle- and Multi-carrier Quadrature Amplitude Modulation Principles and Applications for Personal Communications, WLANs and Broadcasting L. Hanzo Department of Electronics and Computer Science, University of Southampton, UK W. Webb Motorola, Arlington Heights, USA formerly at Multiple Access Communications Ltd, Southampton, UK T. Keller Ubinetics, Cambridge Technology Centre, Melbourn, UK formerly at Department of Electronics and Computer Science, University of Southampton, UK Motivated by the rapid evolution of wireless communication systems, this expanded second edition provides an overview of most major single- and multi-carrier Quadrature Amplitude Modulation (QAM) techniques commencing with simple QAM schemes for the uninitiated through to complex, rapidly-evolving areas, such as arrangements for wide-band mobile channels. Targeted at the more advanced reader, the multi-carrier modulation based second half of the book presents a research-orientated outlook using a variety of novel QAM-based arrangements. * Features six new chapters dealing with the complexities of multi-carrier modulation which has found applications ranging from Wireless Local Area Networks (WLAN) to Digital Video Broadcasting (DVB) * Provides a rudimentary introduction for readers requiring a background in the field of modulation and radio wave propagation * Discusses classic QAM transmission issues relevant to Gaussian channels * Examines QAM-based transmissions over mobile radio channels * Incorporates QAM-related orthogonal techniques, considers the spectral efficiency of QAM in cellular frequency re-use structures and presents a QAM-based speech communications system design study * Introduces Orthogonal Frequency Division Multiplexing (OFDM) over both Gaussian and wideband fading channels By providing an all-encompassing self-contained treatment of single- and multi- carrier QAM based communications, a wide range of readers including senior undergraduate and postgraduate students, practising engineers and researchers alike will all find the coverage of this book attractive
Grounded Theory Focus Group Findings in Combat Veterans With Driving Performance Issues
No full textAbstract
Date Presented 3/30/2017
Combat veterans (CVs) face an increased risk of motor vehicle crash and report driving difficulty that impacts community reintegration. Grounded theory methods were used to examine CVs’ driving perception and behaviors. Clinicians working with this population can use findings to tailor interventions.
Primary Author and Speaker: Sherrilene Classen
Additional Authors and Speakers: Sandra Winter
Contributing Authors: Cassie McGowan, Charles Levy, Miriam Monahan, Abraham Yarney</jats:p
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