562 research outputs found

    Reviews

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    Where the Shadows Lie: A Jungian Interpretation of Tolkien\u27s The Lord of the Rings. Pia Skogemann. Reviewed by Edith L. Crowe. Finding Oz: How L. Frank Baum Discovered the Great American Story. Evan I. Schwartz. Reviewed by Richard Tuerk. Out of My Bone: The Letters of Joy Davidman. Ed. Don W. King. Reviewed by Joe R. Christopher. Collected Poems. Mervyn Peake, edited with an introduction by R.W. Maslen. Reviewed by David Bratman. C.S. Lewis on the Final Frontier: Science and the Supernatural in the Space Trilogy. Sanford Schwartz. Reviewed by Joe R. Christopher. Death and Fantasy: Essays on Philip Pullman, C.S. Lewis, George MacDonald, And R.L. Stevenson. William Gray. Reviewed by David D. Oberhelman. Stephen R. Donaldson and the Modern Epic Vision. Christine Barkley; Series editors Donald E. Palumbo and C. W. Sullivan III. Jefferson. Reviewed by Kim Coleman Healy. The Fantastic Horizon: Essays and Reviews. Darrell Schweitzer. Reviewed by David Bratman

    »Filozofija i kršćanstvo« »Philosophia et christianita«

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    This work was undertaken during T.L. Stephens’s PhD studentship, supported by the Central England Natural Environmental Research Council (NERC) Training Alliance (CENTA) [award reference: 1503848]. The authors would like to thank Nicolas Le Corvec and an anonymous reviewer for their helpful comments during the reviewing process. Additionally we would like to thank Craig Magee, Atsushi Yamaji, and an anonymous reviewer for their constructive reviews on an earlier version of the manuscript.Peer reviewedPublisher PD

    Renormalized spin coefficients in the accumulated orbital phase for unequal mass black hole binaries

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    We analyze galactic black hole mergers and their emitted gravitational waves. Such mergers have typically unequal masses with mass ratio of the order 1/10. The emitted gravitational waves carry the inprint of spins and mass quadrupoles of the binary components. Among these contributions, we consider here the quasi-precessional evolution of the spins. A method of taking into account these third post-Newtonian (3PN) effects by renormalizing (redefining) the 1.5 PN and 2PN accurate spin contributions to the accumulated orbital phase is developed.Comment: 10 pages, to appear in Class. Quantum Grav. GWDAW13 Proceedings Special Issue, v2: no typos conjectur

    Cyclic Oxidation and Hot Corrosion of NiCrY-Coated Disk Superalloys

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    Powder metallurgy disk superalloys have been designed for higher engine operating temperatures through improvement of their strength and creep resistance. Yet, increasing disk application temperatures to 704 degrees Centigrade and higher could enhance oxidation and activate hot corrosion in harmful environments. Protective coatings could be necessary to mitigate such attack. Cylindrical coated specimens of disk superalloys LSHR and ME3 were subjected to thermal cycling to produce cyclic oxidation in air at a maximum temperature of 760 degrees Centigrade. The effects of substrate roughness and coating thickness on coating integrity after cyclic oxidation were considered. Selected coated samples that had cyclic oxidation were then subjected to accelerated hot corrosion tests. This cyclic oxidation did not impair the coating's resistance to subsequent hot corrosion pitting attack

    SIDER : an R package for predicting trophic discrimination factors of consumers based on their ecology and phylogenetic relatedness

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    KH acknowledges support from the Marie Curie Research Grants Scheme, grant [749594] and Science Foundation Ireland awarded to Yvonne Buckley. TG acknowledges support from European Research Council under the European Union’s Seventh Framework Programme (FP/2007–2013)/ERC Grant Agreement number 311092 awarded to Martin D. Brazeau. AJ was funded by a research scholarship administered by the Fulbright Commission of Ireland and in conjunction with the Marine Institute of Ireland. SB & RI are funded by an ERC consolidators grant (STATEMIG: 310820). The data used to fit the regression models, along with the code itself is bundled within the R package and is available on GitHub https://github.com/healyke/SIDER, with the data also on Figshare https://figshare.com/articles/Dataset_for_the_SIDER_R_package/4737481. Data available from the Dryad Digital Repository: http://dx.doi.org/10.5061/dryad.c6035 (Healy et al. 2017).Stable isotope mixing models (SIMMs) are an important tool used to study species' trophic ecology. These models are dependent on, and sensitive to, the choice of trophic discrimination factors (TDF) representing the offset in stable isotope delta values between a consumer and their food source when they are at equilibrium. Ideally, controlled feeding trials should be conducted to determine the appropriate TDF for each consumer, tissue type, food source, and isotope combination used in a study. In reality however, this is often not feasible nor practical. In the absence of species-specific information, many researchers either default to an average TDF value for the major taxonomic group of their consumer, or they choose the nearest phylogenetic neighbour for which a TDF is available. Here, we present the SIDER package for R, which uses a phylogenetic regression model based on a compiled dataset to impute (estimate) a TDF of a consumer. We apply information on the tissue type and feeding ecology of the consumer, all of which are known to affect TDFs, using Bayesian inference. Presently, our approach can estimate TDFs for two commonly used isotopes (nitrogen and carbon), for species of mammals and birds with or without previous TDF information. The estimated posterior probability provides both a mean and variance, reflecting the uncertainty of the estimate, and can be subsequently used in the current suite of SIMM software. SIDER allows users to place a greater degree of confidence on their choice of TDF and its associated uncertainty, thereby leading to more robust predictions about trophic relationships in cases where study-specific data from feeding trials is unavailable. The underlying database can be updated readily to incorporate more stable isotope tracers, replicates and taxonomic groups to further increase the confidence in dietary estimates from stable isotope mixing models, as this information becomes available.PostprintPeer reviewe

    Melanocortin 1 Receptor Variants in an Irish Population

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    The identification of an association between variants in the human melanocortin 1 receptor (MC1R) gene and red hair and fair skin, as well as the relation between variants of this gene and coat color in animals, suggests that the MC1R is an integral control point in the normal pigmentation phenotype. In order to further define the contribution of MC1R variants to pigmentation in a normal population, we have looked for alterations in this gene in series of individuals from a general Irish population, in whom there is a preponderance of individuals with fair skin type. Seventy-five per cent contained a variant in the MC1R gene, with 30% containing two variants. The Arg151Cys, Arg160Trp, and Asp294His variants were significantly associated with red hair (p = 0.0015, p < 0.001, and p < 0.005, respectively). Importantly, no individuals harboring two of these three variants did not have red hair, although some red-haired individuals only showed one alteration. The same three variants were also over-represented in individuals with light skin type as assessed using a modified Fitzpatrick scale. Despite these associations many subjects with dark hair/darker skin type harbored MC1R variants, but there was no evidence of any particular association of variants with the darker phenotype. The Asp294His variant was similarly associated with red hair in a Dutch population, but was infrequent in red-headed subjects from Sweden. The Asp294His variant was also significantly associated with nonmelanoma skin cancer in a U.K. population. The results show that the Arg151Cys, Arg160Trp, and Asp294His variants are of key significance in determining the pigmentary phenotype and response to ultraviolet radiation, and suggest that in many cases the red-haired component and in some cases fair skin type are inherited as a Mendelian recessive

    The Grizzly, September 19, 1986

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    Case\u27s Open: Kegs Closed • An Important Issue: Campus Counseling • Psych 428: Raising Patients\u27 Confidences • The Temple of Art • Letters: Is This the Way it\u27s Supposed to be?; In the Pen With an Itchy Pen • Commending Some Fine Counseling • Alcohol Opinions • Musser Hall: Not Just AC and HBO • Dr. Ken Nelson Meets Students\u27 Needs • Coming to Grips with U.C. • Staging a Revival of Sorts • Soccer Season Starts • Field Hockey Falls to Delaware • Cross-Country Team Successful at Lebanon Valley • U.C. Goes 2-2https://digitalcommons.ursinus.edu/grizzlynews/1168/thumbnail.jp
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