Search results for "Enos"
showing 10 items of 1576 documents
SIRM–SIC appropriateness criteria for the use of Cardiac Computed Tomography. Part 1: Congenital heart diseases, primary prevention, risk assessment …
2021
AbstractIn the past 20 years, Cardiac Computed Tomography (CCT) has become a pivotal technique for the noninvasive diagnostic work-up of coronary and cardiac diseases. Continuous technical and methodological improvements, combined with fast growing scientific evidence, have progressively expanded the clinical role of CCT. Recent large multicenter randomized clinical trials documented the high prognostic value of CCT and its capability to increase the cost-effectiveness of the management of patients with suspected CAD. In the meantime, CCT, initially perceived as a simple non-invasive technique for studying coronary anatomy, has transformed into a multiparametric “one-stop-shop” approach abl…
Slab-triggered wet upwellings produce large volumes of melt: Insights into the destruction of the North China Craton
2018
Abstract Cratons have remained stable for billions of years, despite of ongoing mantle convection and plate tectonics. The North China Craton (NCC), however, is abnormal, as it has experienced a destruction event during the Mesozoic and Cenozoic which was accompanied by extensive magmatism. Several lines of evidence suggest that the (Paleo-)Pacific plate played an important role in this event. Yet, the geodynamic link between subduction and craton destruction remains poorly understood, and it is unclear why there is no systematic spatial and temporal variation of magmatism related to subduction. Here, we perform 2-D petrological-thermomechanical simulations to investigate the influence of s…
Hf isotope compositions of Mediterranean lamproites: Mixing of melts from asthenosphere and crustally contaminated mantle lithosphere
2010
Abstract Mediterranean lamproites from Spain, Italy, Serbia and Macedonia are mantle-derived ultrapotassic volcanic rocks that occur exclusively in postcollisional, extension-related geodynamic settings within the Alpine–Himalaya orogenic belt. Previous studies inferred them to be multi-component melts, originating by mixing of several mantle end-members: (1) provenance-controlled crust-contaminated mantle component(s), (2) an ultra-depleted mantle component, and (3) a component ultimately derived from the convecting mantle. Hf isotope ratios of Mediterranean lamproites reported here cover a large range of eHf values from 0 to −15, for less variable eNd −2 to −13, providing further evidence…
Craton reactivation on the Labrador Sea margins: 40Ar/39Ar age and Sr–Nd–Hf–Pb isotope constraints from alkaline and carbonatite intrusives
2007
Abstract The once-contiguous North Atlantic craton (NAC) is crosscut by the Labrador Sea that opened during the Early Cenozoic after extensive Mesozoic continental rifting and removal of cratonic mantle. This large-scale structural change within the cratonic lithosphere was followed at about 150 Ma by the cessation of ultrapotassic and potassic-to-carbonatitic magma production, which had prevailed throughout much of the NAC history. At Aillik Bay, a sequence of olivine lamproites (1374.2 ± 4.2 Ma, 2σ), aillikites/carbonatites (590–555 Ma), and nephelinites (141.6 ± 1.0 Ma, 2σ) erupted through the southern NAC edge on the present-day Labrador Sea margin. Links between these alkaline magma ty…
Melt infiltration of the lower lithosphere beneath the Tanzania craton and the Albertine rift inferred from S receiver functions
2012
[1] The transition between the lithosphere and the asthenosphere is subject to numerous contemporary studies as its nature is still poorly understood. The thickest lithosphere is associated with old cratons and platforms and it has been shown that seismic investigations may fail to image the lithosphere-asthenosphere boundary in these areas. Instead, several recent studies have proposed a mid-lithospheric discontinuity of unknown origin existing under several cratons. In this study we investigate the Tanzania craton in East Africa which is enclosed by the eastern and western branches of the East African Rift System. We present evidence from S receiver functions for two consecutive discontin…
CO 2 output and δ 13 C(CO 2 ) from Mount Etna as indicators of degassing of shallow asthenosphere
1997
An estimated average CO2 output from Etna's summit craters in the range of 13±3 Mt/a has recently been determined from the measured SO2 output and measured CO2/SO2 molar ratios. To this amount the CO2 output emitted diffusely from the soil (≈ 1 Mt/a) and the amount of CO2 dissolved in Etna's aquifers (≈ 0.25 Mt/a) must be added. Data on the solubility of CO2 in Etnean magmas at high temperature and pressure allow the volume of magma involved in the release of such an amount of this gas to be estimated. This volume of magma (≈ 0.7 km3/a) is approximately 20 times greater than the volume of magma erupted annually during the period 1971–1995. On the basis of C-isotopic data of CO2 collected in…
Tratamiento de la anemia ferropénica posthemorragia digestiva aguda: ferroterapia oral vs. intravenosa
2021
Antecedentes: la hemorragia digestiva aguda es una afección muy prevalente y la anemia ferropénica subsiguiente es una comorbilidad común; sin embargo, faltan guías de tratamiento de la anemia para los pacientes afectados. Objetivo: comparar la eficacia y seguridad del hierro carboximaltosa (FCM) intravenoso y el sulfato ferroso oral (FeSulf) en pacientes con anemia secundaria a hemorragia digestiva no varicosa, determinar la influencia de ambos tratamientos en la calidad de vida durante el seguimiento de los pacientes y valorar los efectos secundarios y adherencia a ambos tratamientos. Método: un estudio prospectivo de 42 días aleatorizó a 61 pacientes con hemoglobina <10 g / dl al alta (d…
Parámetros clínicos y características microbiológicas en pacientes con tejidos periimplantarios sanos, mucositis y peri-implantitis
2014
La restauración de los dientes ausentes mediante implantes dentales constituye hoy en día un tratamiento rutinario y muy extendido. Varios estudios longitudinales han demostrado altas tasas de supervivencia de los implantes en función, que van desde el 90 % al 95 % en un periodo de hasta 20 años de seguimiento. Las complicaciones biológicas alrededor de los implantes dentales se clasifican en tempranas y tardías. Los fracasos tempranos son los que tienen lugar en el tiempo hasta la conexión del pilar al implante y son más fáciles de diagnosticar debido a la falta de osteointegración. Los fracasos tardíos son el resultado de la incapacidad de mantener la oseointegración, siendo la complicaci…
Rompé tus barreras: Un análisis sobre el uso del coaching ontológico en la plataforma de entrenamiento de Nike en Buenos Aires
2020
In recent times, coaching has become relevant in heterogeneous discourses and practices in the economic, political and cultural fields of contemporary societies. Based on our ethnographic analysis of different training sessions on the Nike+ Run Club platform in Buenos Aires, in this article we study how ontological coaching operates in the field of sport and races. Then, we ask about how people who attend this platform appropriate coaching techniques to manage emotions, moods, and body effects according to the business entrepreneurship logic. Through this work, the ethnographic results are articulated with a reflection about the theory, practice, and values of the ontological coaching, wher…
Kokemuksia kokonaisuudesta : tutkielma kehollisuuden ja maailmankatsomuksen suhteesta buenosairesilaisten joogaavien katolisten keskuudessa
2010
Tutkielma käsittelee kehollisuuden ja henkisyyden suhdetta kymmenen buenosairesilaisen joogaavan katolisen elämässä. Keskeisin tutkimuskysymys on, miten informantit merkityksellistävät omaa elämäänsä joogan ja katolilaisuuden kautta, ja millä tavalla nuo merkitykset kohtaavat yksilön maailmankatsomuksessa. Lähestymistapoina toimivat sekä symboli- että kehoantropologia. Symboliselta kannalta yksilö nähdään aktiivisena merkityksentuottajana, joka tulkitsee ja uudelleentulkitsee kokemuksiaan, ihmissuhteitaan ja elämäntapahtumiaan. Kehollinen paradigma muistuttaa kehollisuuden olevan aina osa kokevaa subjektia: kehollisuutta ei voi ottaa kulttuurintutkimuksen ulkoiseksi kohteeksi sen ollessa yk…