Search results for "Earth"
showing 10 items of 12204 documents
Uttalet i läroböcker i svenska som andraspråk från begriplighetsperspektiv
2020
I denna artikel studerar jag hur uttal presenteras i finska gymnasieläroböcker (n=10) i svenska som andra språk. Syftet är att undersöka vilka uttalsdrag som tas upp i läroböckerna och relationen mellan dessa drag och begriplighet. Metoden som jag använder är kvalitativ innehållsanalys. Prosodiska drag har ansetts ha en stor betydelse för begriplighet. Vad det gäller svenska är speciellt satsrytm viktig. Analysen visar dock att uppmärksamheten oftast fästs vid enskilda segment (språkljud) och ord. Uttalet av hela satser övas också men regler eller anvisningar om produktionen av prosodiska drag presenteras bristfälligt. Att ange explicita råd och att göra inläraren medveten har i tidigare un…
Evolution des paysages Sahélines au cours des six dernières décennies dans la région de Niamey : de la disparition de la brousse tigrée à l'encroutem…
2010
In the Sahel, the rapid increase of the population during the last decades and the climate variation lead to an important environmental degradation. This work aims to measure the impacts of the human pressure on ecosystem during the six last decades. A diachronic cartography of a 100 km² area close to Niamey was done with aerial photographs (1950 and 1975) and GPS measurements (2009). Results showed that the tiger bush vegetation was completely cleared between 1950 and 2009 while the fallow decreases from 7 % to 1 %. In the sandy valley, the increase of cultivated fields from 20,7 % (1950) to 69,4 % (1975) favoured wind and water erosions which allowed surface soil crusting. Between 1975 an…
La rigidité du cadre constitutionnel espagnol en ce qui concerne la répartition territoriale du pouvoir et le processus catalan de «déconnexion»
2016
Le processus démocratique que les institutions catalanes ont commencé avec l'intention de "déconnecter" de la réalité constitutionnelle et juridique espagnole, visant la création d'une République catalane, garde le cap après les élections régionales qui ont eu lieu en septembre 2015. Le renforcement du mouvement indépendantiste en Catalogne, au point d'être devenu presque majoritaire, ne peut être expliqué que par un défaut de fonctionnement du modèle constitutionnel espagnol de répartition territoriale du pouvoir. Ce modèle, créé par la Constitution espagnole de 1978, est le produit d'une conception rigide de la question « nationale » et de l'unité de l'Espagne. Après 2006, les événements …
Stratigraphie séquentielle et architecture sédimentaire haute résolution de l'Oolithe Blanche du Bassin Parisien
2013
La formation carbonatée de l'Oolithe Blanche (Bathonien) du Bassin de Paris est, avec le Trias, un aquifère salin profond majeur qui présente un potentiel réservoir important et reconnu, notamment via l'exploitation géothermique ou les grands projets de recherche dans le domaine du stockage géologique du CO2. Elle a été largement étudiée d'un point de vue sédimentologique et stratigraphique en particulier sur les affleurements de Bourgogne (Floquet et al., 1989 ; Garcia et Sambet, 1994 ; Gaumet et al., 1996 ; Gaumet, 1997). Ces études ont permis de définir un profil de dépôt de type rampe carbonatée qui varie entre une rampe ouverte et une rampe barrée, permettant le développement d'un doma…
Conseqüències psicològiques i socials del fenomen del desnonament: un estudi qualitatiu
2016
espanolEl desahucio plantea problemas en la salud fisica y mental de los individuos, ademas de aumentar las desigualdades sociales. El objetivo de este estudio es ayudar a los profesionales que intervienen en esta problematica social, explorando su percepcion en relacion con este tema. Se ha llevado a cabo un estudio cualitativo, exploratorio y descriptivo. Se han desarrollado 1 Focus Group y 9 entrevistas en profundidad a profesionales «claves», regidores y politicos de Servicios de la administracion publica, tecnicos y/o trabajadores sociales y mediadores de conflictos sociales. El desalojo se percibe como un proceso de duelo, con un impacto emocional severo que afecta a la salud de la pe…
Combined effect of low-molecular-weight organic acids and creosote on phosphatase activities in sandy soil
2018
This paper assesses the impact of creosote and low-molecular-weight organic acids (LMWOAs) on the activity of acid phosphomonoesterase, alkaline phosphomonoesterase, phosphotriesterase, and inorganic pyrophosphatase in soil. The experiment was carried out on loamy sand samples with organic carbon content of 8.71 g · kg -1 , with the following variable factors: dosages of creosote: 0, 0.5%, and 2.5%; type of LMWOAs: oxalic acid, tartaric acid, and citric acid in the amount of 50 mmol · kg -1 of soil; days of experiment: 1, 7, 14, 28, 56, 112. Obtained results showed that contamination with creosote caused decrease in the activity of soil phosphatases. The observed effect did not always incre…
Method development for determination and recovery of rare earth elements from industrial fly ash
2014
Rare earth elements (REE) are important in numerous high technology applications and in addition their supply risk is high, which gives rise to studying new sources for rare earth elements. Rare earth element concentrations in industrial fly ash samples collected from Finnish power plants, using a mixture of peat and biomass as a fuel, have been determined. Two sample pre-treatment methods, ultrasound- and microwave-assisted acid digestions, have been applied to fly ash samples. Measurement conditions for inductively coupled plasma-optical emission spectrometry (ICP–OES) have been optimized to reach robust plasma conditions and the reliability of the analysis has been investigated by using …
Dead wood profile of a semi-natural boreal forest – implications for sampling
2019
Dead wood profile of a forest is a useful tool for describing forest characteristics and assessing forest disturbance history. Nevertheless, there are few studies on dead wood profiles, including both coarse and fine dead wood, and on the effect of sampling intensity on the dead wood estimates. In a semi-natural boreal forest, we measured every dead wood item over 2 cm in diameter from 80 study plots. From eight plots, we further recorded dead wood items below 2 cm in diameter. Based on these data we constructed the full dead wood profile, i.e. the overall number of dead wood items and their distribution among different tree species, volumes of different size and decay stage categories. We …
Psychrophiles: A source of cold-adapted enzymes for energy efficient biotechnological industrial processes
2021
Biocatalysts are the backbone of bioprocessing industries that are going through a phase of transition with reference to the requirement of extraordinary enzymes for various biochemical processes. This transition is well reported and documented by various researchers through elucidation of different features and applications of mesophilic and thermophilic enzymes. However, there is little information available about psychrophilic enzymes and their involvement in industrial processes. Therefore, understanding the features and functions of psychrophilic enzymes could suggest some of their novel applications in various industries such as food, agriculture, chemicals, pharmaceuticals, and waste…
Multi-Energy School System for Seasonal Use in the Mediterranean Area
2020
School buildings represent an energy-consuming sector of real estate where different efficiency actions are necessary. The literature shows how the design of a multi-energy system offers numerous advantages, however, there are problems related to the integration of cogeneration units with renewable energy sources due to the low flexibility of the first one and the high degree of uncertainty of the latter. The authors provide an alternative solution through the analysis of a case study consisting of a multiple energy system in three Sicilian schools, focusing on the system&rsquo