Search results for "SOI"
showing 10 items of 4823 documents
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…
Networks and health care systems
1996
The network concept has been successful in the economic littérature and in the health care economics littérature. However the network concept is not easy to define. In the first part, this paper suggests a framework for network conceptions analysis :first, network can be conceived as a structure of economic organisation (such as infrastructure networks), or as a coordination mode, alternative and different from market or hierarchy coordination. In the second part, this paper analyses recent mutations in the health care system (such as cooperation relationships between several hospitals and private clinics, networks between hospitals and ambulatory medical care...) from the network concept a…
Laulu-puu-rumpu : saamelaismusiikin alkulähteillä
1998
Spatial data fusion and analysis for soil characterization: a case study in a coastal basin of south-western Sicily (southern Italy)
2012
Salinization is one of the most serious problems confronting sustainable agriculture in semi-arid and arid regions. Accurate mapping of soil salinization and the associated risk represent a fundamental step in planning agricultural and remediation activities. Geostatistical analysis is very useful for soil quality assessment because it makes it possible to determine the spatial relationships between selected variables and to produce synthetic maps of spatial variation. The main objective of this paper was to map the soil salinization risk in the Delia-Nivolelli alluvial basin (south-western Sicily, southern Italy), using multivariate geostatistical techniques and a set of topographical, phy…
Vieillissement : les risques d'une mauvaise santé bucco-dentaire
2021
The influence of coconut fibre and salts composite used for eliminating slipperiness and on roads on soils = Wpływ kompozytu mieszanki włókien kokoso…
2015
The subject of the study is analyzing the impact of coconut fibre and salt mixture used for eliminating slipperiness on roads on roadside soil. The tests were done on the soil samples taken from the fixed areas twice: in the autumn before applying the composite and in the following spring. Laboratory tests indicated decrease of conduciveness in soil after using the composite in wintertime. This can cause decreasing saltiness of roadside soil. In contrast to commonly used methods of eliminating slipperiness on roads with salts only applying the composite could diminish the negative effects of roadside soil saltiness.
Hillotolppia ja politiikan monikärkiohjuksia : retorinen vertailu Timo Soinin oppositio- ja hallitusajan teksteistä
2018
Tutkimuksen tehtävänä on vertailla Timo Soinin retoriikkaa ennen ja jälkeen puolueen hallitukseen nousun. Vuoden 2015 eduskuntavaalien jälkeen Perussuomalaiset nousi hallitukseen ensimmäistä kertaa puolueen historiassa. Samalla puolueen puheenjohtajasta Timo Soinista tuli Suomen ulkoministeri. Tarkoituksena on selvittää ensinnäkin, muuttuuko Timo Soinin retoriikka ja miten se muuttuu, kun perussuomalaiset pääsee hallitukseen ja hän ministeriksi. Tarkoituksena on myös tarkastella, kuinka populistisella retoriikalla voi pärjätä koalitiohallituksessa. Tutkimuksen aineiston muodostavat Timo Soinin blogitekstit vuosilta 2013 ja 2015. Tarkemmin aineisto on rajattu koskemaan molemmilta tarkasteluv…
Timbral Qualities of Semantic Structures of Music.
2010
The rapid expansion of social media in music has provided the field with impressive datasets that offer insights into the semantic structures underlying everyday uses and classification of music. We hypothesize that the organization of these structures are rather directly linked with the ”qualia” of the music as sound. To explore the ways in which these structures are connected with the qualities of sounds, a semantic space was extracted from a large collection of musical tags with latent semantic and cluster analysis. The perceptual and musical properties of 19 clusters were investigated by a similarity rating task that used spliced musical excerpts representing each cluster. The resulting…
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…
Western blot characterization of exosomes isolated from rat plasma and evaluation of the efficiency of a precipitation method in exosome isolation
2017
Eksosomit ovat halkaisijaltaan 40-100 nm kokoisia solunulkoisia vesikkeleitä, joita solut erittävät solunsisäisen multivesikulaarisen rakkulan yhdistyessä solukalvoon. Eksosomit ovat tärkeässä roolissa solujen välisessä viestinnässä, sillä ne kuljettavat monenlaisia biomolekyylejä, kuten useita eri RNA-tyyppejä, lipidejä ja proteiineja. Aivoissa eksosomit liittyvät neurodegeneratiivisiin sairauksiin, kuten Parkisonin tautiin, Alzheimerin tautiin ja aivovammaan. Eksosomit kykenevät läpäisemään veri-aivoesteen, ja tutkijat ovatkin esittäneet paljon kiinnostusta eksosomien mahdollisuuksiin uutena hoitokeinona. Lisäksi eksosomien kuljettamat molekyylit sisältävät tietoa eksosomit erittäneen sol…