The Greenfoot programming model consists of a World class (represented by a rectangular screen area) and any number of actor objects that are present in the world and can be programmed to act independently. Its most notable difference is the use of a frame-based editor.Īctor a = getOneIntersectingObject ( Asteroid. Stride is intended to make programming easier for novices, support younger users, and facilitate the transition from block-based languages. In 2017, Greenfoot was extended to support a second programming language, Stride (in addition to Java). In August 2009, a textbook was published that teaches programming with Greenfoot. In March 2009, Greenfoot project became free and open source software, and licensed under GPL-2.0-or-later with the Classpath exception. In May 2007, the Greenfoot project was awarded the 'Duke's Choice Award' in the category 'Java Technology in Education', and in 2010 it won the 'Premier Award for Excellence in Engineering Education Courseware'.

The first full release, Greenfoot version 1.0, was published on, with further releases following occasionally thereafter. Greenfoot is being developed and maintained at King's College London, where the development team moved from the University of Kent. From 2005 development was continued involving the other members of the BlueJ Group. The Greenfoot project was initiated by Michael Kölling in 2003, and a first prototype was built by Poul Henriksen ( master's student) and Michael Kölling ( supervisor) in 2003/2004.

Greenfoot is available for Windows, macOS, Linux, Solaris, and any recent JVM. It is free software, released under the GPL license. Greenfoot is being developed and maintained at King's College London, with support from Oracle. It allows easy development of two-dimensional graphical applications, such as simulations and interactive games. Greenfoot is an integrated development environment using Java or Stride designed primarily for educational purposes at the high school and undergraduate level. Biogas women demonstrated slightly better spirometry results but differences were not statistically significant.GPL-2.0-or-later with the Classpath exception Referent women self-reported higher rates of shortness of breath (52% versus 30%), difficulty breathing (42% versus 23%), and chest pain while breathing (35% versus 17%) during the last 6 months (P=0.09to 0.12) compared to biogas women. Only 43% of the biogas group reported any breathing problems, compared to 71% in the referent group (P=0.03). Women from 31 farms with biogas digesters were compared to age-matched women from 31 biomass-reliant farms, in June 2010. This study evaluated the impact of low tech compost digesters, which generate biogas for cooking, versus traditional fuel sources on the respiratory health of nonsmoking Kenyan farmwomen.

Inexpensive technological innovations which reduce such exposures are needed. Par ailleurs, l’étude des « prédispositions » des collectivités locales en matière d’organisation e.īiomass burning in indoor environments has been highlighted as a major cause of respiratory morbidity for women and children in low-income countries. En Algérie plus de quinze ans après la mise en œuvre de la loi 90-08 portant code communal qui consacre de façon officielle cette réorganisation, en favorisant la décentralisation et le développement par le bas, on se pose, dans cet écrit, la question de savoir quelles sont les principales contraintes auxquelles est soumise l’action communale en Algérie ? Sont-elles uniquement d’ordre financier comme on a souvent tendance à les présenter ? La réponse à cette question nous conduit à passer en revue les différents modèles théoriques se rapportant au partage des fonctions entre l’Etat et les collectivités locales et à étudier la configuration de ce partage en pratique. Résumé : La recherche de l’efficacité des actions publiques et la montée en puissance des idées libérales ont conduit les Etats partout dans le monde à réorganiser leur mode d’intervention à partir des années quatre vingt.

Greenfoot sound library