112,065 research outputs found
How the differential load induced by normal fault scarps controls the distribution of monogenic volcanism
No full textUnderstanding shallow magma transfer and the related vent distribution is crucial for volcanic hazard. Here we investigate how the stress induced by topographic scarps linked to normal faults affects the distribution of monogenic volcanoes at divergent plate boundaries. Our numerical models of dyke propagation below a fault scarp show that the dykes tend to propagate toward and erupt on the footwall side. This effect, increasing with the scarp height, is stronger for dykes propagating underneath the hanging wall side and decreases with the distance from the scarp. A comparison to the East African Rift System, Afar and Iceland shows that (1) the inner rift structure, which shapes the topography, controls shallow dyke propagation; (2) differential loading due to mass redistribution affects magma propagation over a broad scale range (100-105-m). Our results find application to any volcanic field with tectonics- or erosion-induced topographic variations and should be considered in any volcanic hazard assessment
Modeling the shape and velocity of magmatic intrusions, a new numerical approach
No full textNumerical code presented in the manuscript "Modeling the shape and velocity of magmatic intrusions, a new numerical approach" by S. Furst, F. Maccaferri and V. Pinel
Modeling the shape and velocity of magmatic intrusions, a new numerical approach
No full textNumerical code presented in the manuscript "Modeling the shape and velocity of magmatic intrusions, a new numerical approach" by S. Furst, F. Maccaferri and V. Pinel
Hoarding Disorder and Emotional Regulation: a pilot study about beliefs and emotions related with induced hoarding framework.
No full textBuoyancy versus local stress field control on the velocity of magma propagation: insight from analog and numerical modelling, Supporting Data
No full textExperimental data and numerical codes used in the manuscript "Buoyancy versus local stress field control on the velocity of magma propagation: insight from analog and numerical modelling" by V. Pinel, S. Furst, F. Maccaferri and D. Smittarello
author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct
No full textSupplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p
DEVELOPMENT AND CHARACTERIZATION OF A WHOLE GENOME RADIATION HYBRID PANEL FOR TETRAPLOID WHEAT
No full textThe recent release of high-quality sequence information from hexaploid wheat (IWGSC 2014)
coupled with the availability of high-density consensus maps for tetraploid wheat (Maccaferri et al.
2014) has accelerated marker and gene discovery in durum wheat (Triticum durum), thus
facilitating the genetic dissection of agronomic traits (Tuberosa and Pozniak 2014). This
notwithstanding, the construction of genetic maps remains a bottleneck for the investigation of the
durum wheat genome. In this context, the development of physical mapping resources to facilitate
the assembly of BAC contigs in future sequencing projects of durum wheat is becoming a primary
necessity. Radiation hybrid (RH) mapping is a promising recombination-independent mapping
approach, which involves the use of radiation-induced chromosomal breakage and marker
segregation to reconstruct marker order (Tiwari et al. 2016).
In this study, for the first time, a RH panel for tetraploid wheat was developed for reference
durum genotype Svevo (Sv-WGRH panel). The Sv-WGRH panel was developed at Kansas State
University (USA), according to the protocol reported by Tiwari et al. 2016. Freshly dehiscing
pollen of Svevo was irradiated with γ-rays (10-Gy) and this was used to pollinate ~150 emasculated
spikes of Senatore Cappelli (used as the female parent), which produced ~1000 RH1 seeds, each
representing an independent RH event. Greenhouse planting of these 1000 RH1 seeds resulted in
~730 RH1 plants, each representing a RH line of Sv-WGRH panel. Initial assessment of Sv-WGRH
panel was performed based on 19 SSR markers. Results indicated that average marker retention of
Sv-WGRH panel is ~85%. Work is in progress to select most informative 188 RH lines and these
selected lines will be genotyped on a high-density marker platform. This RH panel is an important
resource contributing towards the assembly of the genome sequence of durum wheat and other
tetraploid wheats
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Characterizing the physical properties of gelatin, a classic analog for the brittle elastic crust, insight from numerical modeling
No full textPrecise characterization of the mechanical properties of gelatin, a classic analog of the elastic crust, is necessary for scaling the mechanical models of the Earth's crust behavior in laboratory experiments. Here we reassess how to accurately calculate the Young modulus (E) of gelatin contained in experimental tanks. By means of dedicated analog experiments and finite element simulations, we estimate the bias introduced by using equations appropriate for a half-space to interpret the subsidence due to a cylindrical surface load applied on the gelatin. In the case of a standard experimental setup with gelatin adhering to the tank wall, we find E is overestimated by at least 5% for a box with lateral size smaller than 20 times the cylinder diameter. In addition, we deduce a correction factor to be applied when using an analytical formula. We confirm that measuring the shear velocity leads to accurate estimates for the rigidity of gelatin. We also propose a new method for in situ Young's modulus estimation, relying on the length of air-filled propagating crack. Indeed, for a given injected volume, this length depends only on the density contrast between air and gelatin and on the Young's modulus of the gelatin. The fracture toughness of the gelatin is estimated independently. Direct comparison between fracture toughness and Young's modulus shows that for a given Young's modulus, salted gelatin has a higher fracture toughness than unsalted gelatin
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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