Search results for "strike"
showing 10 items of 52 documents
A strike-slip core complex from the Najd fault system, Arabian shield
2014
Metamorphic core complexes are usually thought to be associated with regional crustal extension and crustal thinning, where deep crustal material is exhumed along gently dipping normal shear zones oblique to the regional extension direction. We present a new mechanism whereby metamorphic core complexes can be exhumed along crustal-scale strike-slip fault systems that accommodated crustal shortening. The Qazaz metamorphic dome in Saudi Arabia was exhumed along a gently dipping jog in a crustal-scale vertical strike-slip fault zone that caused more than 25 km of exhumation of lower crustal rocks by 30 km of lateral motion. Subsequently, the complex was transected by a branch of the strike-sli…
Complex vein systems as a data source in tectonics: An example from the Ugab Valley, NW Namibia
2014
Abstract Neoproterozoic metaturbidites in the Lower Ugab Domain, Namibia, contain a complex network of four sets of quartz-calcite veins, overprinted by km-scale folds associated with four regional foliations. The veins formed by fluid overpressure predating the main deformation. Deformation structures developed at the junction of two mobile belts during the assembly of Gondwana, the NS Kaoko Belt, and the EW trending Damara Belt. Km-scale NS trending folds were initiated during EW constriction in the Kaoko Belt, while their further development and all subsequent events are related to constriction in the EW-Damara Belt, with coeval sinistral strike slip in the Kaoko Belt. Deformation of the…
Communicative Strategies from Cyberfemism: @Feminismosmad and the Twitter Diffusion of the 8m Strike in Madrid
2020
Resumen Tanto desde el ámbito académico como desde el movimiento feminista se discute el alcance y la relevancia de las nuevas herramientas digitales para la subversión de la agenda, el cambio en los sistemas políticos occidentales y, en suma, el fin de las desigualdades entre géneros (Zafra, 2011; Núñez Puente, 2011). Mediante un análisis cuantitativo y entrevistas semiestructuradas, estudiamos el uso de Twitter por parte de @FeminismosMad. Este perfil se enfocó en explicar la Huelga feminista, así como en motivar la participación de la ciudadanía en las diferentes actividades organizadas durante el proceso del 8M. Abstract The scope and relevance of new digital tools for subverting the do…
Multi-temporal tectonic evolution of Capo Granitola and Sciacca foreland transcurrent faults (Sicily channel)
2019
Highlights • Seismic reflection profiles evidence tectonic inversion and active strike-slip faults offshore SW Sicily foreland • Pliocene-Quaternary transpressional inversion of Late Miocene extensional basins • Transpressional fold growth rates were high in Latest Miocene-Pliocene and decreased during Quaternary Joint analysis of high-penetration multi-channel and high-resolution single-channel seismic reflection profiles, calibrated by deep well boreholes, allowed a detailed reconstruction of the Late Miocene to Recent tectonic history of the Capo Granitola and Sciacca fault systems offshore southwestern Sicily. These two fault arrays are part of a regional system of transcurrent faults t…
Impact Acceleration During Prolonged Running While Wearing Conventional Versus Minimalist Shoes.
2020
Purpose: In recent years a sub-group of minimalist runners have emerged who aim to perform physical exercise more naturally in an attempt to reduce running-related injuries. Here we aimed to determine the effect that running with minimalist footwear in a prolonged run has on footimpact accelerations. Method: Seventeen runners ran with minimalist and conventional shoes (MS and CS, respectively) in two separate sessions; the participants had experience with both footwear types. We measured the length and frequency of each stride, as well as the tibial and head impact acceleration every 5 minutes during a prolonged run (30 minutes at 80% of each individual's maximum aerobic speed). Results: Th…
Effect of fatigue and gender on kinematics and ground reaction forces variables in recreational runners.
2017
The presence of fatigue has been shown to modify running biomechanics. Overall in terms of gender, women are at lower risk than men for sustaining running-related injuries, although it depends on the factors taken into account. One possible reason for these differences in the injury rate and location might be the dissimilar running patterns between men and women. The purpose of this study was to determine the effect of fatigue and gender on the kinematic and ground reaction forces (GRF) parameters in recreational runners. Fifty-seven participants (28 males and 29 females) had kinematic and GRF variables measured while running at speed of 3.3 m s−1 before and after a fatigue test protocol. T…
Active tectonics in the Calabrian Arc: Insights from the Late Miocene to Recent structural evolution of the Squillace Basin (offshore eastern Calabri…
2023
The Calabrian Arc represents one of the most active sectors of the upper plate of the Tyrrhenian-Ionian subduction system. This research aims to reconstruct the evolution of the Squillace Basin (Ionian offshore of the Calabrian Arc) from the Late Miocene to Recent times and recognise active shallow and deep structures using a multiscale approach. The latter is based on interpreting high-penetration and high-resolution seismic reflection profiles, calibrated with well-log data coupled with bathymetric data and the distribution of instrumental earthquakes. Data highlight three steps in the evolution of the Squillace Basin. A Late Miocene extensional event led to the formation of WNW-ESE orien…
Visibility in mediated borderscapes : The hunger strike of asylum seekers as an embodiment of border violence
2018
In 2012, two Afghan asylum seekers camped outside the Parliament building in Helsinki during a hunger strike that lasted for 72 days. Although the protest was very visible in the city space, the mainstream media and most politicians ignored it. This paper analyzes the protest and its mediation through the concepts of borderscape and visibility. Using methods of visual and discourse analysis, we examine the ways in which the hunger strike protest – and its mediation – negotiate the (in)visibility of borders. We show how the city can be a site for both policing and for politicizing asylum issues. In particular, we focus on the ways in which protesting asylum seekers embody borders and border …
Development of a Low-Cost IoT System for Lightning Strike Detection and Location
2019
Lightning and thunder are some of the most violent natural phenomena. They generate a great deal of expenditure and economic loss, especially when they strike in cities. The identification of the concrete geographic area where they strike is of critical importance for emergency services in order to enhance their effectiveness by doing an intensive coverage of the affected area. To achieve this purpose at the city scale, this paper proposes the design, prototype, and validation of a distributed network of Internet of Things (IoT) devices. The IoT devices are empowered with lightning detection capabilities and are synchronized with the other devices in the sensor network. All of them cooperat…
Tiešsaistes videospēļu “Counter Strike” un “League of Legends” spēlētāju interaktīvā komunikācija
2017
Bakalaura darbā „tiešsaistes video spēļu „Counter Strike” un „League of Legends” spēlētāju interaktīvā komunikācija” tiek pētīta verbālās un neverbālās valodas lietošana un tās pielietojums dažādos komunikācijas kanālos. Papildus pēc iegūtajiem datiem un veiktajiem novērojumiem tiek noskaidrots auditorijas (spēlētāju) viedoklis par komunikācijas saturu un nepieciešamību. Darba teorētisko daļu veido daļas par kvalitatīvu komunikāciju, kā arī nodaļas par interaktīvo komunikāciju, tiešsaistes video spēlēm un tiešsaistes spēļu komunikāciju kopumā. Empīriskajā daļā ar kontentanalīzes palīdzību tiek pētīti ar novērojuma metodi iegūti dati par spēlētāju komunikācija tiešsaistes spēļu virtuālajā vi…