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Subsurface flow and large-scale lateral saturated soil hydraulic conductivity in a Mediterranean hillslope with contrasting land uses
2017
Abstract The lateral saturated hydraulic conductivity, Ks,l , is the soil property that mostly governs subsurface flow in hillslopes. Determinations of Ks,l at the hillslope scale are expected to yield valuable information for interpreting and modeling hydrological processes since soil heterogeneities are functionally averaged in this case. However, these data are rare since the experiments are quite difficult and costly. In this investigation, that was carried out in Sardinia (Italy), large-scale determinations of Ks,l were done in two adjacent hillslopes covered by a Mediterranean maquis and grass, respectively, with the following objectives: i) to evaluate the effect of land use change o…
Effect of cultivation techniques on the hydrodynamic and mechanical behaviour of the "Lauragais-terreforts"
1993
The effect of various seed bed preparations on hydrodynamic and mechanical parameters was studied experimentally by simulated rainfall on clayeyloamy soils Lauragais, which had developed on chalky molasse on a slope greater than 12 %. The level of soaked up rain ("pluie d'imbibition", Pi) is closely connected to the inital degree of saturation of the soil ; it varies from 10 to 24 mm when the soil is humid and increases when the soil is dry (14 to 47 mm). But when the soil surface is crusted the Pi is less and seems to be no longer controlled by the degree of water in the soil. Treatments with fine structural elements show the fewest possibilities of infiltration during the soaking up stage…
Simulated raindrop's characteristic measurements. A new approach of image processing tested under laboratory rainfall simulation
2018
Abstract The size of the drops determines soil erosion and runoff rates, and then the fate of ecosystems. Various raindrop measurement techniques and tools have been developed to determine natural and simulated raindrop size distributions and mean drop size. There is a need to improve the procedure to determine the raindrop properties, and this is why we develop a new technique to analyze drop size distribution and fall velocity. For this purpose a rainfall simulator with two oscillating Veejet 80100 nozzles in laboratory condition, and high speed imaging technique and edge detection approach in image processing was applied to identify and measure drop size and calculate drop velocity. The …
Caffeine and cardiovascular diseases: critical review of current research.
2015
Caffeine is a most widely consumed physiological stimulant worldwide, which is consumed via natural sources, such as coffee and tea, and now marketed sources such as energy drinks and other dietary supplements. This wide use has led to concerns regarding the safety of caffeine and its proposed beneficial role in alertness, performance and energy expenditure and side effects in the cardiovascular system. The question remains "Which dose is safe?", as the population does not appear to adhere to the strict guidelines listed on caffeine consumption. Studies in humans and animal models yield controversial results, which can be explained by population, type and dose of caffeine and low statistica…
Has the use of antipyretics been modified after the introduction of different concentrations of ibuprofen into the market?
2014
Introduction: Due to the emergence of new pharmaceutical presentations of ibuprofen (40 mg/mL), an analysis was made on the use of antipyretics in paediatric outpatients in Spain. Patients and methods: A cross-sectional, observational, descriptive study was carried out on a sample of children under 14 years old with treated febrile syndrome, seen in the Emergency Room of the Hospital General Universitario de Valencia from November 2012 to January 2013. Results: Of the 217 children included, 144 were treated with paracetamol or ibuprofen, 69 received both drugs, and one received paracetamol and metamizol. There were 58.7% of exposures to paracetamol and 40.9% to ibuprofen. The parents decide…
Climate change impact on SWAT simulated streamflow in western Kenya
2009
12 pages (3/4 p.); International audience; Weather and climate extremes such as droughts and floods have far reaching impacts in Kenya. They have had implications in a variety of sectors including agriculture, water resources, health, energy, and disaster management among others. Lake Victoria and its catchment support millions of people and any impact on its ability to support the livelihoods of the communities in this region is of major concern. Thus, the main objective of this study was to assess the potential future climatic changes on the Nzoia catchment in the Lake Victoria basin, and how they might affect streamflow. The Soil and Water Assessment Tool was used to investigate the impa…
Territoire et formation : quelle dynamique de rapprochement ?
2013
Documents de travail de l'IREDU, n°2013-2; Ce Document de Travail de l'IREDU propose une réflexion sur un aspect de la politique de formation professionnelle pilotée par le Conseil régional de Bourgogne, celui des Comité Territoriaux Formation (CTF).Plus précisément, il s'intéresse aux actuels rapprochements, ou à ceux qui sont en cours de développement, entre la thématique du territoire et celle de la formation, ainsi qu'aux éléments explicatifs d'une telle évolution. Seront aussi évoqués les effets de cette dynamique sur les modalités d'élaboration d'une politique d'intervention régionale et de construction de l'offre de formation.
A rational expectations model for simulation and policy evaluation of the Spanish economy
2010
This paper presents the model used for simulation purposes within the Spanish Ministry of Economic Affairs and Finance. REMS (a Rational Expectations Model for the Spanish economy) is a small open economy dynamic general equilibrium model in the vein of the New-Neoclassical-Keynesian synthesis models, with a strongly micro-founded system of equations. In the long run REMS behaves in accordance with the neoclassical growth model. In the short run, it incorporates nominal, real and financial frictions. Real frictions include adjustment costs in consumption (via habits in consumption and rule-of-thumb households) and investment into physical capital. Due to financial frictions, there is no per…
Die landwirthschaftlich-chemische Versuchsstation am Polytechnikum zu Riga, Lief. 2
1877
Bericht über die Thätigkeit in den Jahren 1874/75 und 1875/76.
Ungdom og e-demokrati : hvilke ønsker og forventninger har ungdom til e-demokrati?
2007
Masteroppgave i informasjonssystemer 2007 - Høgskolen i Agder, Kristiansand E-demokrati er et satsningsområde i offentlig sektor. Det har i Norge vært synkende deltagelse i valg både til Storting og kommunevalg ved de siste valgene. Ungdom i aldersgruppen 18 til 21 år har lavere oppslutning rundt valgene enn eldre aldersgrupper. Flere mener at e-demokrati kan bidra til å øke oppslutning rundt demokratiet og valgene. I denne sammenheng er ungdom en viktig målgruppe. Vi har sett nærmere på e-demokrati rettet mot ungdom. Målet for denne masteroppgaven har vært å forstå hvilke ønsker og forventninger ungdom har til informasjonssystemer innen for edemokrati. For å besvare dette spørsmålet har vi…