Journal of Developmental and Physical Disabilities | Year: 2014
Illustrations in storybooks not only provide a source of interest for children but also support language development and literacy skills. A better understanding of how to communicate stories through tactile illustrations is a central issue for practitioners and researchers who work with visually impaired children. Recognizing tactile illustrations implies precisely perceiving the shapes and being able to associate meaning with these representations. This study focused on the way tactile pictures were haptically explored by visually impaired children during joint book reading. The aim was to determine how the task and the type of illustrations promoted haptic exploration. Children seemed to be more active and used more often a procedure that relied on following the contours of the shapes, when they have to find the meaning of the pictures than when the meaning was given to them through reading. The 3D illustrations led to the use of a wider variety of exploratory procedures than the 2D illustrations. The adult guidance also influenced the way the children explored tactile illustrations. © 2013 Springer Science+Business Media New York.
Salhi S.,Cread |
Imache A.,Lisode |
Tonneau J.-P.,CIRAD - Agricultural Research for Development |
Cahiers Agricultures | Year: 2012
Over the last decade, Algeria has encouraged the adoption of water saving systems by providing subsidies to fanners through a national plan for agricultural development, with particular attention paid to drip irrigation. This initiative has been successful only for a limited number of farmers. This work aims at analysing the determinants that influence the Algerian farmers in converting to the drip irrigation system. This work is based on a model (Logit) that allowed us to identify variables significantly influencing the innovation behaviour of fanners regarding the decision to adopt the system. The results show that subsidies, type of crop and educational level have positively affected adoption. However, the investment costs, conditions needed to access and lack hydraulic structure seem to have a negative affect the adoption drip irrigation.
Benzohra B.,University of Khemis Miliana |
Bencharif A.,Institute agronomique mediterraneen IAM |
Cahiers Agricultures | Year: 2010
The analysis of the world sugar sector shows a trend of conversion to bioethanol production. At the root of this transformation lie the volatility of sugar prices on the world market and the desire to reduce dependence on oil from some countries exporting sugar. The prices volatility also explains the use of sweeteners in place of sugar, especially in the food industry. The development of bioethanol production from sugar is now favoured by the reform of the sugar market in Europe and the renewed interest of several countries for cleaner renewable energy. © 2007 John Libbey Eurotext.
El Saadi N.,CREAD |
Bah A.,UMI 209 |
Studies in Computational Intelligence | Year: 2010
The problem of internal migration and its effect on urban unemployment and underemployment has been the subject of an abundant theoretical literature on economic development. However, most discussions have been largely qualitative and have not provided enough rigorous frame-works with which to analyze the mechanism of labor migration and urban unemployment. In this paper, we build up an economic behavioral model of rural-urban migration which is an agent-based version of the analytical Todaro model described by deterministic ordinary differential equations. The agent-based model allows to explore the rural-urban labor migration process and give quantitative results on the equilibrium proportion of the labor force that is not absorbed by the modern industrial economy. © 2010 Springer-Verlag Berlin Heidelberg.
Oberti B.,IAMM CIHEAM |
Padilla M.,IAMM CIHEAM |
Mekhancha C.,UMC |
Bedrani S.,CREAD |
And 6 more authors.
Acta Horticulturae | Year: 2014
Objective: Consumption of fruit and vegetables (F&V) may play a role in the fight against overweight. The aim of the current study was to validate the link between consumption of F&V with overweight and biological impact. The Algerian context is a very rapid transition with a high prevalence of overweight and low consumption of F&V. Methodology: Qualitative and quantitative surveys were conducted on 421 persons in urban (200) and rural (200) areas. Experimentation on 40 persons in Adj El Mechri (South Algeria): Distribution of 400 g/capita/day of fruit and vegetables during 2 months. Results: (i) Link between consumption of F&V and the prevalence of overweight is not as obvious as it seems. Three types of people emerge: (a) urban people with a high level of F&V consumption and a normal body mass index, (b) the illiterate urban people with a low consumption of F&V and prone to obesity, (c) the rural elderly, primary school level people with a pre-obese status. (ii) Some physiological and behavioural impacts of increased consumption of F&V were validated: vitamins E and B9 have increased; blood pressure was improved; pre-obese people lost weight while obese persons have increased their weight because the quantity of F&V consumed was added to the usual ration. (iii) Increased availability of F&V was appreciated and did not disrupt the behaviours. Low consumption of F&V was due to their limited access (low income, high prices, low availability and lack of variety).
Gardelle L.,University of Western Brittany |
Droff J.,University of Western Brittany |
Mediterranee | Year: 2015
In the light of recent technopolitan initiatives in North Africa, this article discusses the issues regarding the Algerian technopolitan experience. The existing literature shows that the metropolitan process is less advanced in Algeria than in other Mediterranean countries. However, the ambitious public policy of "Pole d'excellence" suggests that the country will soon fill this gap. The technopolitan policy in North Africa is presented, and its implementation on the site of Sidi Abdellah illustrates the Algerian government ambitions. Then the main issues of such a policy for the Algerian diaspora are discussed. More particularly, the potential career opportunities for highly skilled expatriates are studied. The diaspora might play a role in two ways: first, positive consequences linked to the return of expatriate executives to their home country and second, the networks of expatriates that could find some geographical identification with technopoles in a globalized knowledge economy.