2,497 research outputs found
Review of "Literature and Political Intellection in Early Stuart England" by Brett A. Hudson.
No full textTodd Butler. Literature and Political Intellection in Early Stuart England. Oxford: Oxford University Press, 2019. xiii + 240 pp. $77.00. Review by Brett A. Hudson, Middle Tennessee State University
Letter from Douglas M. Todd, Assistant Project Manager, Heart Mountain Relocation Project, to Mr. Shoji Nagumo, September 20, 1943
No full textLetter to Shoji Nagumo regarding his appointment as Manager for Block 12 at Heart Mountain incarceration camp.The Japanese American Archival Collection documents the people, places, and daily life of Japanese Americans, primarily those who lived in the once thriving community of pre-war Florin in the Sacramento region, as well as the conditions in American incarceration camps during World War II. The approximately 7,000 original items include personal and official letters, photographs, diaries, arts and crafts, newsletters, textiles, camps artifacts, yearbooks and other publications
Strategies of Political Institutions and Civil Society Actors in the Post-3/11 Era: The Case of Japan
No full textJapan is at a crossroads of public administration and disaster management, especially in the aftermath of the catastrophic events of March 11, 2011: a major earthquake near Tōhoku, and the subsequent tsunami and nuclear reactor meltdown at the Fukushima Daiichi nuclear facility. There have been advocates for more top-down governance to handle such crises (and the ongoing residuals of such crises), while others have touted more decentralization—that is, more governance at the local level. Nevertheless, Japan still faced myriad public policy challenges three years after the catastrophic events. This article investigates the role of nongovernmental organizations (NGOs) in Japan’s local governance in the aftermath of March 11, 2011, addressing broadly the theme of disaster management and, more specifically, the impact (or lack thereof) of NGOs (nonprofits) on the local governance processes in Japan in the midst of the debates regarding top-down and bottom-up approaches to disaster management
Decreased input to the motor cortex increases motor cortical excitability
No full textCopyright © 2006 International Federation of Clinical Neurophysiology Published by Elsevier Ireland Ltd.ObjectiveTo investigate whether a short-duration reduction of input to the motor cortex affects excitability in the hand region of the motor cortex.MethodsSubjects (n=10) received sets of transcranial magnetic stimulation of the motor cortex (TMS) and peripheral ulnar nerve stimulation. Stimuli were delivered before and after 20 min of inactivity of the test hand. The evoked compound muscle action potentials were recorded in two relaxed intrinsic hand muscles using surface EMG.ResultsMotor evoked potential size (MEP; expressed relative to the maximal M-wave) increased by approximately 30-40 in both hand muscles (P=0.012) following inactivity. The enlarged MEP was not associated with changes in F-wave size, a marker of motoneurone excitability, or changes in intracortical inhibition and facilitation measured with paired-pulse TMS.ConclusionsMEP growth most likely reflects an increase in motor cortical excitability. The increased excitability appears to be more associated with reduced voluntary drive to and from the motor cortex rather than reduced afferent input from the periphery.SignificanceThese results have important implications for any investigation of motor cortical excitability in relaxed subjects. The outcome of an experimental intervention is the net result of the intervention itself and alterations in cortical excitability produced by the subjects' inactivity.Gabrielle Todd, Jane E. Butler, Gandevia, and Janet L. Taylo
Intermediate and high-temperature oxidation behavior of an equiatomic TaTiCr RCCA from 800° C to 1400° C
No full textThis study explores the oxidation behavior of a TaTiCr refractory complex concentrated alloy (RCCA) in the temperature regime of 800–1400 °C. The oxidation kinetics were found to be proportional with temperature. However, a mechanistic shift from linear oxidation kinetics at 800 °C and 1000 °C to sub-parabolic kinetics at 1200 °C and 1400 °C was observed. This was attributed to the establishment of continuous external scales of TiO2 and Cr2O3, with fairly continuous underlying complex oxide layers at the higher temperatures. While there were morphological differences in the oxide scales depending on exposure temperature, the oxide species were all similar, primarily consisting of an outer layer of TiO2, an intermediate layer of Cr2O3, and an inner layer of rutile-structured (Cr,Ta,Ti)O2. Internal nitridation was observed in all cases, with a severe degree of internal reaction at 1400 °C, reaching a depth of 750 μm. Overall, the best performance was observed at 1200 °C, where a favorable balance of kinetics and thermodynamics promoted the most continuous oxide layers, thereby enhancing oxidation resistance.This article is published as Welch, Noah J., Maria J. Quintana, Samuel J. Kuhr, Todd M. Butler, and Peter C. Collins. "Intermediate and high-temperature oxidation behavior of an equiatomic TaTiCr RCCA from 800° C to 1400° C." International Journal of Refractory Metals and Hard Materials (2023): 106437.
doi: https://doi.org/10.1016/j.ijrmhm.2023.106437.This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
The influence of microstructure on the oxidation behavior of a TaTiCr refractory complex concentrated alloy
No full textThis work explores the effect of microstructure on the oxidation behavior of an equiatomic TaTiCr RCCA after 24 h of exposure at 800°C, 1000°C, 1200°C, and 1400°C. Two microstructural conditions, both containing a bcc matrix with C15 Laves precipitates, with one condition having coarser precipitates (∼10.9 µm diameter) and one condition having finer precipitates (∼2.9 µm diameter) were studied. At all oxidation temperatures except 800°C, the finer-scale (TaTiCr-F) condition experienced more rapid oxidation kinetics, higher mass gains, and thicker oxide scales and internal reaction zones. However, at 800°C, the microstructure containing coarser precipitates (TaTiCr-C) formed a thicker oxide scale. Continuous, protective Cr2O3 layers were only observed in the coarse precipitate condition and correlations between Cr2O3 layer thickness, subsequent formation of complex refractory oxides, and the initial Laves precipitate size are described. It is proposed that the formation of continuous Cr2O3 is highly dependent on the size and distribution of the Cr-rich Laves phase and only mildly dependent on phase fraction. Oxidation mechanisms for each condition are discussed relative to the initial microstructures, observed oxide species, and related alloy systems.This article is published as Welch, Noah J., Todd M. Butler, Maria J. Quintana, and Peter C. Collins. "The influence of microstructure on the oxidation behavior of a TaTiCr refractory complex concentrated alloy." Journal of Alloys and Compounds (2024): 175613. doi: https://doi.org/10.1016/j.jallcom.2024.175613. © 2024 The Authors. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
Higher S-dualities and Shephard-Todd groups
No full textAbstract: Seiberg and Witten have shown that in N=2 SQCD with Nf = 2Nc = 4 the S-duality group PSL2ℤ acts on the flavor charges, which are weights of Spin(8), by triality. There are other N=2 SCFTs in which SU(2) SYM is coupled to strongly-interacting non-Lagrangian matter: their matter charges are weights of E6, E7 and E8 instead of Spin(8). The S-duality group PSL2ℤ acts on these weights: what replaces Spin(8) triality for the E6, E7, E8root lattices? In this paper we answer the question. The action on the matter charges of (a finite central extension of) PSL2ℤ factorizes trough the action of the exceptional Shephard-Todd groups G4 and G8 which should be seen as complex analogs of the usual triality group S3≃WeylA2. Our analysis is based on the identification of S-duality for SU(2) gauge SCFTs with the group of automorphisms of the cluster category of weighted projective lines of tubular type. © 2015, The Author(s)
Fast Evaluation of Generalized Todd Polynomials: Applications to MacMahon's Partition Analysis and Integer Programming
No full textThe Todd polynomials are defined by their
generating functions It appears as a basic block in Todd class of a toric
variety, which is important in the theory of lattice polytopes and in number
theory. We find generalized Todd polynomials arise naturally in MacMahon's
partition analysis, especially in Ehrhart series computation. We give fast
evaluation of generalized Todd polynomials for numerical 's. In order to
do so, we develop fast operations in the quotient ring
modulo for large prime . As applications, i) we recompute the
Ehrhart series of magic squares of order 6, which was first solved by the first
named author. The running time is reduced from days to about day; ii)
we give a polynomial time algorithm for Integer Linear Programming when the
dimension is fixed, with a good performance.Comment: 24 pages, 1 figur
Koinonia
No full textSpotlight FeatureThe Cult of Cool: Rejecting Relevance and Pursuing Faithfulness, Kate Bowman Johnston
ReflectionFaith and the Problem of Suffering, James Spiegel
ACSD Summer 2006Photos from ACSE
Author InterviewOur Place at the Table: The Role of White People in Racial Reconciliation: An Interview with Doug Schaupp, Glen Kinoshita
Thinking TheologicallyThinking Theologically: The Seasons of Hope\u27s Redemption Part I, Todd Ream
Book ReviewSkin Games, reviewed by Jessie M. Brown
FeaturesThe President\u27s Corner
Editor\u27s Deskhttps://pillars.taylor.edu/acsd_koinonia/1006/thumbnail.jp
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