13 research outputs found

    Backreaction in Axion Monodromy, 4-forms and the Swampland

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    Axion monodromy models can always be described in terms of an axion coupled to 3-form gauge fields with non-canonical kinetic terms. The presence of the saxions parametrising the kinetic metrics of the 3-form fields leads to backreaction effects in the inflationary dynamics. We review the case in which saxions backreact on the K\"ahler metric of the inflaton leading to a logarithmic scaling of the proper field distance at large field. This behaviour is universal in Type II string flux compactifications and consistent with a refinement of the Swampland Conjecture. The critical point at which this behaviour appears depends on the mass hierarchy between the inflaton and the saxions. However, in tractable compactifications, such a hierarchy cannot be realised without leaving the regime of validity of the effective theory, disfavouring transplanckian excursions in string theory.Comment: Proceedings prepared for the "Workshop on Geometry and Physics", November 2016, Ringberg Castl

    Additional file 2: of Discovery of the fourth mobile sulfonamide resistance gene

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    List of known ARGs, categorized by different families of antibiotics, identified as gene cassettes in both samples. (XLSX 20 kb

    Antifungal activity in social/eusocial, communal and solitary thrips species.

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    <p>Slopes of fitted regressions of AdjDensity ( =  difference between treatment and control OD) on time, plotted against 6 concentrations of antifungal extract from 6 thrips species assayed against the entomopathogen <i>Cordyceps bassiana</i>. The species, their levels of organization and the number of replicates are given in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0049737#pone-0049737-t001" target="_blank">Table 1</a>. Red indicates social <i>Kladothrips arotrum</i> and <i>K. antennatus</i> and the eusocial <i>K. intermedius</i>; black indicates communal <i>Teucothrips ater</i> and blue indicates solitary <i>Haplothrips froggattii</i> and <i>H. varius.</i> Negative slopes indicate antifungal effect and magnitude indicates strength. Filled symbols indicate slopes significantly different to zero (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0049737#pone-0049737-t002" target="_blank">Table 2</a>).</p

    Results of testing the significance of the slope of fitted linear models.

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    *<p>N = 15.</p><p>A two-tailed t-test was applied to test the null hypothesis that a given slope was equivalent to zero. A significance level of 0.05 was used to determine if the null hypothesis could be rejected. The values are the t-value and p-value reported by the lmList function of the R package lm rounded to two decimal places. N-values represent the number of data points used in each model fit. The t-test degrees of freedom are therefore N–2.</p

    Pathogen abundance and disease incidence.

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    <p>Note: values within each column followed by the same letter are not statistically significant at P<0.05.</p><p>Amount of pathogen <i>R. solani</i> AG 8 inoculum in the surface soil at sowing and the level of disease incidence measured in 7 week old seedlings from suppressive and non-suppressive fields at Avon and Minnipa with standard errors.</p

    Similarity percentage analysis (SIMPER).

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    <p>Relative abundances (%) of OTUs at the genus level that contribute to the discrimination between fungal communities in suppressive and non-suppressive soils (solid bar = suppression, hatched bar = non-suppression) in the (A) sowing and (B) in-crop (7 week) samples. Numbers in the right column indicate percent contribution to discrimination by SIMPER analysis (sum = 26.8% (A) and 31.2% (B)). * indicate significant differences between suppressive and non-suppressive fields (t-test, p<0.05). Bold taxa indicate that they are shared between the sowing and in-crop samples.</p

    Non-metric dimensional scaling (NMDS) based ordinations for differences among sites and treatments.

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    <p>Analyses generated from Bray Curtis dissimilarity plus a dummy variable (+d) on Hellinger-transformed relative abundances for all-data at 0% bootstrap (closest match) at the genus (A) and family (B) levels and the re-sampled data at the genus (C) and family (D) levels. 2D stress values were 0.17 (A), 0.18 (B), 0.18 (C), and 0.19 (D).</p
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