173 research outputs found
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Scientific Findings of the Neskak Gora Project on Second Generation Immigrant Girls and Young Women from North African and South Asian Families in Europe
Research project “Neskak Gora” on discrimination against young second generation female migrants in six European countrie
Ağğağ-Alemin
Aǧǧaǧ-Alemīn, appelé aussi elwali (le saint), est le seul islamisateur dont la mémoire ait été conservée vivante dans l’histoire orale des Kel Ahaggar. Son tombeau, situé entre Hirafok (Herhâfeq) et Idélès, parfaitement entretenu, est bien connu des habitants du nord-est de l’Ahaggar. Selon Ibn Khaldoun (Histoire des Berbères, II : 67), Yahya-ibn-Ibrahîm de la tribu des Guedala rencontra à Kairouan (lors de son voyage à la Mecque en 440/1048-9) Abou-Amran el-Fasi, un savant docteur du rite ma..
Bât
Par G. Barrere Ce bât comprend deux parties :1. l’armature formée de deux arceaux en bois.2. la matelassure constituée par trois coussinets. Chaque coussinet comprend une épaisseur de fibre de palmier cousue dans une enveloppe en peau ou en tissu. On distingue deux coussinets latéraux (longs de 50 cm, larges de 15 cm) qui servent d’appui aux arceaux et un transversal (30 cm × 15 cm) qui protège le garrot de l’âne contre tout frottement. Les arceaux sont en bois de sumac (Rhus oxyacantha) ou d..
Parallel declines in species and genetic diversity driven by anthropogenic disturbance: a multispecies approach in a French Atlantic dune system.
Numerous studies assess the correlation between genetic and species diversities, but the processes underlying the observed patterns have only received limited attention. For instance, varying levels of habitat disturbance across a region may locally reduce both diversities due to extinctions, and increased genetic drift during population bottlenecks and founder events. We investigated the regional distribution of genetic and species diversities of a coastal sand dune plant community along 240 kilometers of coastline with the aim to test for a correlation between the two diversity levels. We further quantify and tease apart the respective contributions of natural and anthropogenic disturbance factors to the observed patterns. We detected significant positive correlation between both variables. We further revealed a negative impact of urbanization: Sites with a high amount of recreational infrastructure within 10 km coastline had significantly lowered genetic and species diversities. On the other hand, a measure of natural habitat disturbance had no effect. This study shows that parallel variation of genetic and species diversities across a region can be traced back to human landscape alteration, provides arguments for a more resolute dune protection, and may help to design priority conservation areas
Financialization and the monetary circuit : a macro-accounting approach
This paper aims to cross-breed the standard monetary circuit accounting model with elements from the Post-Keynesian literature. The goals are: (i) to analyse the implications of credit-based household consumption fed by capital asset inflation for the soundness of a pure credit-money economy of production; and (ii) to provide a more sophisticated description of the working of modern financial systems than the one grounded in the usual 'bank-based vs. market based' distinction
Ultra-porous titanium oxide scaffold with high compressive strength
Highly porous and well interconnected titanium dioxide (TiO2) scaffolds with compressive strength above 2.5 MPa were fabricated without compromising the desired pore architectural characteristics, such as high porosity, appropriate pore size, surface-to-volume ratio, and interconnectivity. Processing parameters and pore architectural characteristics were investigated in order to identify the key processing steps and morphological properties that contributed to the enhanced strength of the scaffolds. Cleaning of the TiO2 raw powder removed phosphates but introduced sodium into the powder, which was suggested to decrease the slurry stability. Strong correlation was found between compressive strength and both replication times and solid content in the ceramic slurry. Increase in the solid content resulted in more favourable sponge loading, which was achieved due to the more suitable rheological properties of the ceramic slurry. Repeated replication process induced only negligible changes in the pore architectural parameters indicating a reduced flaw size in the scaffold struts. The fabricated TiO2 scaffolds show great promise as load-bearing bone scaffolds for applications where moderate mechanical support is required
Effect of the calcination temperature on the composition and microstructure of hydroxyapatite derived from human and animal bone
Household and community socioeconomic and environmental determinants of child nutritional status in Cameroon
BACKGROUND: Undernutrition is a leading cause of child mortality in developing countries, especially in sub-Saharan Africa. We examine the household and community level socioeconomic and environmental factors associated with child nutritional status in Cameroon, and changes in the effects of these factors during the 1990s economic crisis. We further consider age-specific effects of household economic status on child nutrition. METHODS: Child nutritional status was measured by weight-for-age (WAZ) and height-for-age (HAZ) z-scores. Data were from Demographic and Health Surveys conducted in 1991 and 1998. We used analysis of variance to assess the bivariate association between the explanatory factors and nutritional status. Multivariate, multilevel analyses were undertaken to estimate the net effects of both household and community factors. RESULTS: Average WAZ and HAZ declined respectively from -0.70 standard deviations (SD), i.e. 0.70 SD below the reference median, to -0.83 SD (p = 0.006) and from -1.03 SD to -1.14 SD (p = 0.026) between 1991 and 1998. These declines occurred mostly among boys, children over 12 months of age, and those of low socioeconomic status. Maternal education and maternal health seeking behavior were associated with better child nutrition. Household economic status had an overall positive effect that increased during the crisis, but it had little effect in children under 6 months of age. Improved household (water, sanitation and cooking fuel) and community environment had positive effects. Children living in the driest regions of the country were consistently worst off, and those in the largest cities were best off. CONCLUSION: Both household and community factors have significant impact on child health in Cameroon. Understanding these relationships can facilitate design of age- and community-specific intervention programs
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