Search results for "Mali"
showing 10 items of 3900 documents
Multisensor comparison of NDVI for a semi‐arid environment in Spain
2009
The joint use of multiresolution sensors from different satellites offers many opportunities to describe vegetation and its dynamics. This paper introduces the concept of a virtual constellation (defined as an ensemble of all Earth Observation satellites in orbit that satisfy common requirements) for agricultural applications and contributes to providing the necessary inter-sensor calibration methodology for spectral reflectances and NDVI. For this purpose, we performed an observational study, comparing reflectances and the Normalized Difference Vegetation Index (NDVI), from near-synchronous image pairs of Landsat 7 Enhanced Thematic Mapper Plus (ETM+), as the reference sensor and Landsat 5…
Improved land surface emissivities over agricultural areas using ASTER NDVI
2006
Abstract Land surface emissivity retrieval over agricultural regions is important for energy balance estimations, land cover assessment and other related environmental studies. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) produces images of sufficient spatial resolution (from 15 m to 90 m) to be of use in agricultural studies, in which fields of crops are too small to be well-resolved by low resolution sensors. The ASTER project generates land surface emissivity images as a Standard Product (AST05) using the Temperature/Emissivity Separation (TES) algorithm. However, the TES algorithm is prone to scaling errors in estimating emissivities for surfaces with low s…
Vegetation dynamics from NDVI time series analysis using the wavelet transform
2009
A multi-resolution analysis (MRA) based on the wavelet transform (WT) has been implemented to study NDVI time series. These series, which are non-stationary and present short-term, seasonal and long-term variations, can be decomposed using this MRA as a sum of series associated with different temporal scales. The main focus of the paper is to check the potential of this MRA to capture and describe both intra- and inter-annual changes in the data, i.e., to discuss the ability of the proposed procedure to monitor vegetation dynamics at regional scale. Our approach concentrates on what wavelet analysis can tell us about a NDVI time series. On the one hand, the intra-annual series, linked to th…
Review of S. D. Smith, Man and Animal in Severan Rome: The Literary Imagination of Claudius Aelianus' (Cambridge, CUP, 2014)
2015
Through a detailed review of S. D. Smith's book on Aelian's De Natura Animalium, the present article discusses relevant trends and debates in the study of the ancient representation of animals.
Extraordinarily White: The De/Spectacularization of the Albinotic Body and the Normalization of Its Audience
2018
This chapter discusses three cultural institutions–freak show, art photography and fashion modelling–and the respective figures they produced by presenting albinotic bodies. How are bodily deviance and norm negotiated in these cases of structured seeing? Spectacularizing the ‘albino freak’ as a categorical in-between phenomenon, the freak show drew a sharp distinction between the extraordinary figure on stage and its audience while bestowing the latter with normality. On the other hand, Rick Guidotti’s photographic activism invoking ‘positive exposure’ personalizes albinotic subjects and thus partly breaks down the differentiation between deviant other and normal spectator. Finally, in the …
Informal laws and state law in the horn of Africa
2019
This essay examines the relationship existing between informal law and state laws in the four countries of the Horn of Africa from an historical and comparative perspective. Such relation is considered from the time when the four countries became independent, however reference is also made from time to time to the colonial background when necessary to justify a particular situation. The analysis casts also an eye to the relation existing between religious laws and state laws, as religious laws represent an essential component in the interaction between state laws and the other normative orders present in these four countries. The essay concludes with some recommendations for the improvement…
Pieni matkakertomus Afrikasta
2013
Haaveilin koululaisena, että teen uskomattomia seikkailuja kaukaisiin maailmankolkkiin. Uudemman kerran olin lähdössä päätä pahkaa maailmalle, kun aloitin uskontotieteen opinnot Turun yliopistossa 1990-luvun alussa. Muistan, kuinka silloista professoria huvitti, kun uusien opiskelijoiden esittelytilaisuudessa kerroin haluavani Markku Lehmuskallion jalanjäljille dokumentaristiksi Siperiaan. Maailma oli minulle silloin niin avoin, että en ymmärtänyt, että laadukkaassa dokumenttielokuvassa kuvataan muutakin kuin puhuvia päitä ja eksoottisia rituaaleja. En tiennyt, että alaa opiskellaan usein muualla kuin tiedeyliopistossa. Loppujen lopuksi minusta tuli ihan hyvä etnologi: olen kuluneiden 20 vu…
Analyse des coûts et du financement de l'éducation au Mali
1985
référence interne : 85039
Mali : revue du secteur santé
1986
référence interne : 86068
Éducation thérapeutique structurée par les pairs éducateurs dans le diabète de type 2 au Mali
2016
International audience; Les pays en développement sont confrontés à des ressources financières et humaines limitées, malgré les besoins importants et les défis de santé multiples. Plus de 75% des personnes atteintes de diabète dans le monde vivent dans des pays en développement. En Afrique, le nombre de personnes atteintes de diabète devrait doubler dans les 30 prochaines années.Les défis à relever pour offrir une éducation visant à permettre aux personnes souffrant d'une condition chronique de la gérer eux-mêmes se situent à trois niveaux : les patients, les prestataires de soins, et les systèmes de santé.Au Mali, après le développement de capacités de prise en charge des patients diabétiq…