Search results for "Planetary Science"
showing 10 items of 4367 documents
Comparison of Crop Trait Retrieval Strategies Using UAV-Based VNIR Hyperspectral Imaging.
2021
Hyperspectral cameras onboard unmanned aerial vehicles (UAVs) have recently emerged for monitoring crop traits at the sub-field scale. Different physical, statistical, and hybrid methods for crop trait retrieval have been developed. However, spectra collected from UAVs can be confounded by various issues, including illumination variation throughout the crop growing season, the effect of which on the retrieval performance is not well understood at present. In this study, four retrieval methods are compared, in terms of retrieving the leaf area index (LAI), fractional vegetation cover (fCover), and canopy chlorophyll content (CCC) of potato plants over an agricultural field for six dates duri…
Preliminary data concerning the morphology of a Calabrian Ionian margin area: Caulonia and Marina di Gioiosa canyons
2008
In the framework of the Vector National Italian Project (VulCost line), aimed to study the role of the morphology and the geology of the Ionian Calabrian margin in the coastline evolution, an oceanographic cruise was planned to collect geophysical data along two canyon systems: Caulonia and Marina di Gioiosa. The survey explored the continental shelf and slope from a depth of 15 m to more than 1150 m, using Multibeam Echosounder to investigate the seafloor topography. This work provides an outline of the erosive feature of the slope, shaped mostly by seasonal river input and by the connection to the structural and geological characteristics of the margin, made interesting by a narrow shelf …
Understanding Degassing Pathways Along the 1886 Tarawera (New Zealand) Volcanic Fissure by Combining Soil and Lake CO2 Fluxes
2019
CO2 flux measurements are often used to monitor volcanic systems, understand the cause of volcanic unrest, and map sub-surface structures. Currently, such measurements are incomplete at Tarawera (New Zealand), which erupted with little warning in 1886 and produced a ∼17 km long fissure. We combine new soil CO2 flux and C isotope measurements of Tarawera with previous data from Rotomahana and Waimangu (regions also along the 1886 fissure) to fingerprint the CO2 source, understand the current pathways for degassing, quantify the CO2 released along the entire fissure, and provide a baseline survey. The total CO2 emissions from the fissure are 1227 t⋅d–1 (742–3398 t⋅d–1 90 % confidence interval…
From molecular mechanisms to clinical management of antineoplastic drug-induced cardiovascular toxicity: A translational overview
2019
Significance: Antineoplastic therapies have significantly improved the prognosis of oncology patients. However, these treatments can bring to a higher incidence of side-effects, including the worrying cardiovascular toxicity (CTX). Recent Advances: Substantial evidence indicates multiple mechanisms of CTX, with redox mechanisms playing a key role. Recent data singled out mitochondria as key targets for antineoplastic drug-induced CTX; understanding the underlying mechanisms is, therefore, crucial for effective cardioprotection, without compromising the efficacy of anti-cancer treatments. Critical Issues: CTX can occur within a few days or many years after treatment. Type I CTX is associated…
Benvingut Rogers a Espanya o de què tracta, realment, l'empatia
2016
espanolEl objetivo de este trabajo es aportar una vision global de la obra de Carl Rogers y de su impacto en el panorama internacional y espanol de la Psicoterapia actual. Planteamos que la obra de Rogers y el concepto de empatia no han «entrado» realmente en Espana, que el conocimiento que aqui existe es superficial y anecdotico, comparado con el desarrollo e impacto internacional que tienen hoy. Para mostrarlo, se evalua la presencia de la obra de Rogers en nuestro contexto geografico, aplicando algunos indices de prevalencia utilizados en anteriores revisiones internacionales: a) publicaciones que existen sobre Rogers o su obra; b) organizaciones profesionales, Institutos de Formacion y …
Sedimentology of a Late Quaternary lacustrine record from the south-eastern Carpathian Basin
2021
The Upper Pleistocene geoarchives in the south‐eastern Carpathian Basin are represented predominantly by loess–palaeosol records. In 2015, a 10 m sediment core composed of clay‐rich lacustrine sediments was recovered by vibracoring a dry lake basin located between the Vršac Mountains (Serbia) and the Banat Sands in the south‐eastern Carpathian Basin; a location relevant for placing regional archaeological results in a palaeoenvironmental context. Here, we present results from geoelectrical prospection and a lithostratigraphic interpretation of this sequence supported by a detailed granulometric study supplemented by ostracod analysis. An age model based on luminescence dating is discussed a…
Sobre la configuración formal de galicismos léxicos como palabras idiomáticas en estructuras locucionales en español
2020
espanolEl objetivo del presente articulo es ofrecer un analisis de la configuracion formal de un tipo muy concreto de palabras idiomaticas: nueve prestamos lexicos procedentes del frances que sobreviven insertos en locuciones en espanol. Para ello, delimitaremos los conceptos de palabra idiomatica, prestamo lexico y galicismo, y expondremos un procedimiento metodologico lexicografico para recopilar este tipo de voces en diccionarios generales actuales como el DLE y el DEA. A continuacion, se procedera al analisis lexicogenetico y morfologico de las nueve voces idiomaticas, para intentar extraer una valoracion global sobre su configuracion EnglishThe aim of this paper is to offer an analysis…
Les autotraduccions poètiques al castellà de Joan Fuster (Verbo, 1946-1949)
2017
Resum: Es preten posar en relleu la importancia de la poesia i la traduccio en el conjunt de l’obra literaria de Joan Fuster a partir de les autotraduccions poetiques en castella que publica, entre 1946 i 1949, en Verbo , revista literaria que funda i dirigi amb Jose Albi. Par- tint d’una contextualitzacio previa en que es justifica la presencia de l’autotraduccio en la historia de la literatura catalana, s’analitzen els motius pels quals Fuster hague de traduir un nombre considerable de poemes. En aquest sentit, hi intervenen dos factors basics que determinen l’orientacio de la nostra investigacio: el paper central de Fuster en la creacio de Verbo i els dubtes que generaren les autotrad…
Mujeres rurales profesionales: su evaluación del medio rural en Cataluña y Galicia
2014
Dentro del contexto de las nuevas ruralidades algunas mujeres profesionales han decidido quedarse en el mundo rural para desarrollar su propio proyecto profesional y vital. Es un fenómeno nuevo dado el proceso constante de emigración rural hacia las ciudades que España ha sufrido en el pasado. La investigación la hemos llevado a cabo en zonas rurales de Cataluña y Galicia a través de entrevistas en profundidad. Nuestro objetivo es captar cómo estas mujeres profesionales perciben no solo el mundo rural sino también a las mujeres rurales actuales. Su percepción, fruto de un proceso de formación y experiencia de vida en otros lugares, urbanos, se puede convertir en un espejo para las generacio…
Ceramide Mediates Acute Oxygen Sensing in Vascular Tissues
2014
AbstractAims: A variety of vessels, such as resistance pulmonary arteries (PA) and fetoplacental arteries and the ductus arteriosus (DA) are specialized in sensing and responding to changes in oxygen tension. Despite opposite stimuli, normoxic DA contraction and hypoxic fetoplacental and PA vasoconstriction share some mechanistic features. Activation of neutral sphingomyelinase (nSMase) and subsequent ceramide production has been involved in hypoxic pulmonary vasoconstriction (HPV). Herein we aimed to study the possible role of nSMase-derived ceramide as a common factor in the acute oxygen-sensing function of specialized vascular tissues. Results: The nSMase inhibitor GW4869 and an anticera…