23,836 research outputs found
A Historical Guide to Ralph Ellison
No full textThe essays in this collection treat the whole of Ralph Ellison's body of work, including his famous novel Invisible Man. The volume confronts Ellison the man of ideas, essayist, and short story writer, as well as the material in his posthumously published novel Juneteenth, in order to provide contemporary readers and critics with a comprehensive examination of Ellison.Intro -- Contents -- Abbreviations -- Introduction -- Ralph Ellison, 1913-1994: A Brief Biography -- ELLISON IN HIS TIME -- "Creative and Cultural Lag": The Radical Education of Ralph Ellison -- A Delicate Ear, a Retentive Memory, and the Power to Weld the Fragments -- "Something Warmly, Infuriatingly Feminine": Gender, Sexuality, and the Work of Ralph Ellison -- The Integrated Literary Tradition -- Ralph Ellison's Politics of Integration -- Illustrated Chronology -- Bibliographical Essay: Probing the Lower Frequencies: Fifty Years of Ellison Criticism -- Contributors -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W -- Y -- ZThe essays in this collection treat the whole of Ralph Ellison's body of work, including his famous novel Invisible Man. The volume confronts Ellison the man of ideas, essayist, and short story writer, as well as the material in his posthumously published novel Juneteenth, in order to provide contemporary readers and critics with a comprehensive examination of Ellison.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
Evaluation of new diagnostic and treatment strategies in the management of the Zollinger-Ellison syndrome
No full textIncludes bibliography.Despite major advances over the last two decades with the management of patients with Zollinger-Ellison syndrome (ZES), unanswered questions remain concerning the natural history of the disease, the impact of new diagnostics modalities on cure rates, and the role of surgery in the era of modem medical therapies. The aims of the thesis are to (i) analyse the database of 40 ZES patients treated at Groote Schuur Hospital (GSH) over two decades, with special reference to the impact of various surgical strategies on outcome, (ii) investigate a possible correlation between biological tissue marker expression and tumour behaviour, (iii) study the effect of somatostatin receptor scintigraphy (SRS) on surgical cure rates, and (iv) assess the efficacy and safety of a new proton pump inhibitor (pantoprazole) in controlling acid hypersecretion
Mesophilic-hydrothermal-thermophilic (M-H-T) digestion of green corn straw
No full textMesophilic-hydrothermal (80-160 degrees C, 30 min)-thermophilic (M-H-T) digestion and control tests of mesophilic (M), thermophilic (T), hydrothermal-mesophilic (H-M), and mesophilic-thermophilic digestion (M-T) of green corn straw were conducted for a 20-day fermentation period. The results indicate that M-H-T is an efficient method to improve methane production. A maximum methane yield of 371.74 mL/g volatile solid was obtained by the M (3 days)-H (140 degrees C)-T (17 days) process, which was 20.44%, 16.55%, 31.44%, and 14.31% higher than the yields of the M, T, 140-M, and M-T processes. The enhanced methane production was attributed to (1) the improved hemicellulose degradation and lignin disorganization; (2) prevention of the degradation of soluble sugar, easily hydrolyzed hemicellulose and cellulose into furfural and methylfurfural; and (3) lack of formation of Maillard reaction products during initial hydrothermal treatment. (C) 2015 Elsevier Ltd. All rights reserved
A 2 h periodic variation in the low-mass X-ray binary Ser X-1
No full textSpectroscopy of the low-mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ?2 h periodic variability that is present in the three strongest emission lines. We tentatively interpret this variability as due to orbital motion, making it the first indication of the orbital period of Ser X-1. Together with the fact that the emission lines are remarkably narrow, but still resolved, we show that a main-sequence K dwarf together with a canonical 1.4 M? neutron star gives a good description of the system. In this scenario, the most likely place for the emission lines to arise is the accretion disc, instead of a localized region in the binary (such as the irradiated surface or the stream-impact point), and their narrowness is due instead to the low inclination (?10°) of Ser X-1
Clifford G. McIntire, James H. Anderson, William L. Giles, Roy L. Lovvorn, Robert T. Clapp
No full textClifford G. McIntire (second from left), co-author of the McIntire-Stennis Act, is pictured with Experiment Station Director James H. Anderson (left), MSU President William L. Giles, Cooperative State Research Service Administrator Roy L. Lovvorn, and Dean Robert T. Clapp (right) at the Forest Products Laboratory during a McIntire-Stennis meeting.https://scholarsjunction.msstate.edu/ua-photo-collection/6476/thumbnail.jp
f(G,T) and its Cosmological Implications
No full textA coupled formulation of the Gauss-Bonnet invariant term G and the
energy momentum trace T term provide a modified f(G,T) gravity,
has been analyzed in this study. The functional form for the
f(G,T) gravity has been taken as f(G,T)=αT+ βGThe presentation of the authors' names and (or) special characters in the title of the pdf file of the accepted manuscript may differ slightly from what is displayed on the item page. The information in the pdf file of the accepted manuscript reflects the original submission by the author
Heat of formation of the hydroperoxyl radical HOO via negative ion studies
No full textWe present a determination of Delta(f)H(298)(HOO) based upon a negative. ion thermodynamic cycle. The photoelectron spectra of HOO- and DOO- were used to measure the molecular electron affinities (EAs). In a separate experiment, a tandem flowing afterglow-selected ion flow tube (FA-SIFT) was used to measure the forward and reverse rate constants for HOO- + HCdropCH reversible arrow HOOH + HCdropC(-) at 298 K, which gave a value for Delta(acid)H(298)(HOO-H). The experiments yield the following values: EA(HOO) = 1.078 +/- 0.006 eV; T-0((X) over tilde HOO - (A) over tilde HOO) = 0.872 +/- 0.007 eV; EA(DOO) = 1.077 +/- 0.005 eV; T-0((X) over tilde DOO - (A) over tilde DOO) = 0.874 +/- 0.007 eV; Delta(acid)G(298)(HOO-H) = 369.5 +/- 0.4 kcal mol(-1); and Delta(acid)H(298)(HOO-H) = 376.5 +/- 0.4 kcal mol(-1). The acidity/EA thermochemical cycle yields values for the bond enthalpies of DH298(HOO-H) = 87.8 +/- 0.5 kcal mol(-1) and Do(HOO-H) = 86.6 +/- 0.5 kcal mol(-1). We recommend the following values for the heats of formation of the hydroperoxyl radical: Delta(f)H(298)(HOO) = 3.2 +/- 0.5 kcal mol(-1) and Delta(f)H(0)(HOO) = 3.9 +/- 0.5 kcal mol(-1); we recommend that these values supersede those listed in the current NIST-JANAF thermochemical tables
Comments on moderate alcohol consumption and mortality
No full textAbstract not availableElizabeth Barrett-Connor, Giovanni de Gaetano, Luc Djoussé, Curtis Ellison, Ramon Estruch, Harvey Finkel, Tedd Goldfinger, Ulrich Keil, Dominique Lanzmann-Petithory, Fulvio Mattivi, Erik Skovenborg, Creina Stockley, Arne Svilaas, Pierre-Louis Teissedre, Dag S. Thelle, Fulvio Ursini, Andrew L. Waterhous
Relations between x-ray timing features and spectral parameters of galactic black hole x-ray binaries
No full textWe present a study of correlations between spectral and timing parameters for a sample of black hole X-ray binary candidates. Data are taken from GX
339-4, H 1743-322, and XTE J1650-500, as the Rossi X-ray Timing Explorer
(RXTE) observed complete outbursts of these sources. In our study we investigate outbursts that happened before the end of 2009 to make use of the high-energy coverage of the HEXTE detector and select observations that
show a certain type of quasi-periodic oscillations (type-C QPOs). The spectral parameters are derived using the empirical convolution model simpl to model the Comptonized component of the emission together with a disc blackbody for the emission of the accretion disc. Additional spectral features, namely a reflection component, a high-energy cut-off, and excess emission at 6.4 keV, are taken into account. Our investigations confirm the known positive
correlation between photon index and centroid frequency of the QPOs and reveal an anti-correlation between the fraction of up-scattered photons and the QPO frequency. We show that both correlations behave as expected in the “sombrero”
geometry. Furthermore, we find that during outburst decay the correlation between photon index and QPO frequency follow a general track, independent of individual outbursts
Public Values and Public Trust: Responses to Welfare State Reform in the UK
No full textThe current reform programme in the UK welfare state appears to improve cost-efficiency and responsiveness in many areas, but runs the risk of generating further problems. This paper argues that the justification for the new directions in policy rest ultimately on a particular understanding of agency. The limitations of this account explain why proponents of the reforms tend not to recognise or pay adequate attention to problems of legitimacy and public trust. Evidence from a new survey is used to demonstrate this in the context of the reform of the National Health Servic
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