93,500 research outputs found
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
Puklina Graham 1991
No full text<i>Puklina</i> Graham, 1991 <p>(Figs 33 A–F)</p> <p> The tetrastichine genus <i>Puklina</i> was erected for two species, <i>P. amblyteles</i> Graham, 1991 (type-species) and <i>P. depilata</i> Graham, 1991. There is no information on the host of <i>P. amblyteles</i>, but <i>P. depilata</i> was described from specimens emerging from seeds of <i>A.</i> ? <i>cerasiferus</i> (mentioned as ‘ <i>Asphodelus “cerasifer”</i> [probably = <i>ramosus</i> L. of <i>Flora Europaea</i>]’ (Graham 1991: 167) containing Eurytomidae collected in France (Provence), and from seeds of <i>A. ramosus</i> collected in Greece (Kos). A further three species of <i>Puklina</i> associated with Eurytomidae in seeds of Xanthorrhoeaceae have been more recently described but two are here synonymised under <i>P depilata.</i></p>Published as part of <i>Delvare, G., Escolà, A. Ribes, Stojanova, A. M., Benoit, L., Lecomte, J. & Askew, R. R., 2019, Exploring insect biodiversity: the parasitic Hymenoptera, chiefly Chalcidoidea, associated with seeds of asphodels (Xanthorrhoeaceae), with the description of nine new species belonging to Eurytomidae and Torymidae, pp. 1-90 in Zootaxa 4597 (1)</i> on page 75, DOI: 10.11646/zootaxa.4597.1.1, <a href="http://zenodo.org/record/2667950">http://zenodo.org/record/2667950</a>
The local spectrum of the Dirac operator for the universal cover of SL_2(R)
No full textUsing representation theory, we compute the spectrum of the Dirac operator on the universal covering group of SL2(R)SL2(R), exhibiting it as the generator of KK1(C,A)KK1(C,A), where AA is the reduced C?C?-algebra of the group. This yields a new and direct computation of the K -theory of AA. A fundamental role is played by the limit-of-discrete-series representation, which is the frontier between the discrete and the principal series of the group. We provide a detailed analysis of the localised spectra of the Dirac operator and compute the Dirac cohomology
sj-R-1-smm-10.1177_09622802231151218 - Supplemental material for Updating the probability of study success for combination therapies using related combination study data
No full textSupplemental material, sj-R-1-smm-10.1177_09622802231151218 for Updating the probability of study success for combination therapies using related combination study data by Emily Graham, Chris Harbron and Thomas Jaki in Statistical Methods in Medical Research</p
Head Start Immunity: Characterising the early protection of C strain vaccine against subsequent classical swine fever virus infection
No full textSupplementary Material:
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fimmu.2019.01584/full#supplementary-material .Copyright © 2019 McCarthy, Everett, Graham, Steinbach and Crooke. Classical Swine Fever Virus (CSFV) is an ongoing threat to the pig industry due to the high transmission and mortality rates associated with infection. Live attenuated vaccines such as the CSFV C strain vaccine are capable of protecting against infection within 5 days of vaccination, but the molecular mechanisms through which this early protection is mediated have yet to be established. In this study, we compared the response of pigs vaccinated with the C strain to non-vaccinated pigs both challenged with a pathogenic strain of CSFV. Analysis of transcriptomic data from the tonsils of these animals during the early stages after vaccination and challenge reveals a set of regulated genes that appear throughout the analysis. Many of these are linked to the ISG15 antiviral pathway suggesting it may play a role in the rapid and early protection conferred by C strain vaccination
American snakes/ Sean P. Graham ; foreword by Rick Shine.
No full textIncludes bibliographical references and index.Cover -- Title -- Copyright -- Contents -- Foreword -- Preface -- Acknowledgments -- 1. Introduction -- 2. Form and Function -- 3. A Day in the Life of a Snake -- 4. A Year in the Life of a Snake -- 5. Snake Sex -- 6. Snake Food -- 7. Snake Eaters -- 8. Snake Defense -- 9. Dangerous Snakes -- 10. Snake Invaders -- 11. Snake Conservation -- Epilogue -- References -- 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 -- Z1 online resource
Letter from John P. John to Joseph R. Goodman, 1942
No full textLetter from John P. John to Joseph R. Goodman: "Here are a couple of letters Caleb received concerning the Japanese situation. I have already sent him a condensed record of their general text. Probably more material will be coming in from time to time and we will forward it to you. I guess this is sufficient since Caleb has spoken with you in detail about the problem and where he is to be contacted in the east. Louise Thompson and I are holding things down while Caleb is away and can be contacted here by mail for anything."Personal correspondence, organizational records, government documents, publications, and other papers created or collected by Joseph R. Goodman documenting the forced removal and incarceration of Japanese Americans during World War II, as well as organized resistance to incarceration. Included in the collection are records of the Japanese Young Men's Christian Association and the Japanese American Citizens' League in San Francisco, including papers of the Japanese YMCA's executive secretary Lincoln Kanai; Sakai family papers; Goodman's correspondence to and from Japanese American incarcerees, organizations opposing forced removal and incarceration of Japanese Americans, the War Relocation Authority, and others; publications, photographs, and ephemera from the Topaz Relocation Center, where Goodman taught high school; War Relocation Authority records and publications; and newspaper clippings, pamphlets, and reports about forced removal and incarceration created by various government, religious, and civic organizations, in California and nationwide
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Discovery of an optical counterpart to the hyperluminous X-ray source in ESO 243-49
No full textThe existence of black holes of masses similar to 10(2)-10(5)M(circle dot) has important implications for the formation and evolution of star clusters and supermassive black holes. One of the strongest candidates to date is the hyperluminous X-ray source (HLX1), possibly located in the S0- a galaxy ESO 243-49, but the lack of an identifiable optical counterpart had hampered its interpretation. Using the Magellan telescope, we have discovered an unresolved optical source with R = 23.80 +/- 0.25 mag and V = 24.5 +/- 0.3 mag within HLX1's positional error circle. This implies an average X-ray/optical flux ratio similar to 500. Taking the same distance as ESO 243-49, we obtain an intrinsic brightness M-R = -11.0 +/- 0.3 mag, comparable to that of a massive globular cluster. Alternatively, the optical source is consistent with a main-sequence M star in the Galactic halo (for example an M4.4 star at approximate to 2.5 kpc). We also examined the properties of ESO 243-49 by combining Swift/Ultraviolet/Optical Telescope (UVOT) observations with stellar population modelling. We found that the overall emission is dominated by a similar to 5-Gyr-old stellar population, but the UV emission at approximate to 2000 angstrom is mostly due to ongoing star formation at a rate of similar to 0.03M(circle dot) yr(-1). The UV emission is more intense (at least a 9 sigma enhancement above the mean) north-east of the nucleus, in the same quadrant as HLX1. With the combined optical and X-ray measurements, we put constraints on the nature of HLX1. We rule out a foreground star and a background AGN. Two alternative scenarios are still viable. HLX1 could be an accreting intermediate mass black hole in a star cluster, which may itself be the stripped nucleus of a dwarf galaxy that passed through ESO 243-49, an event which might have caused the current episode of star formation. Or, it could be a neutron star in the Galactic halo, accreting from an M4-M5 donor star
The sexual excitation/sexual inhibition inventory for women: psychometric properties
No full textThis is a post-print version of the article. The official published version can be found at the link below.This article reports on the development of a new questionnaire designed to assess the propensity for sexual excitation and sexual inhibition in women: The Sexual Excitation/Sexual Inhibition Inventory for Women (SESII-W). The theoretical model underlying this research, the Dual Control Model, postulates that sexual response depends on a balance between excitatory and inhibitory mechanisms and that individuals vary in their propensity for excitation and inhibition. This study describes the development and initial validation of the SESII-W in a sample of 655 women (M age, 33.9 years). Factor analysis identified eight factors and two higher-order factors: one related to sexual excitation and one to sexual inhibition. The measure demonstrated good test-retest reliability and discriminant and convergent validity. Our data underscore that a number of factors affect women's sexual arousal and these appear to be related to opposing processes of sexual excitation and sexual inhibition. Theoretical issues, possible gender differences, and the value of using qualitative data to inform questionnaire development are discussed.This study was funded, in part, by a grant from the Lilly Centre for Women‟s Health
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