Sustainable designEnvironmentally sustainable design (also called environmentally conscious design, eco-design, etc.) is the philosophy of designing physical objects, the built environment, and services to comply with the principles of ecological sustainability and also aimed at improving the health and comfort of occupants in a building. Sustainable design seeks to reduce negative impacts on the environment, the health and well-being of building occupants, thereby improving building performance.
Groupe modulaireEn mathématiques, on appelle groupe modulaire le groupe PSL(2, Z), quotient du groupe spécial linéaire SL(2, Z) par son centre { Id, –Id }. Il s'identifie à l'image de SL(2, Z) dans le groupe de Lie On le note souvent Γ(1) ou simplement Γ. Ce nom provient de l'action à gauche et fidèle de Γ(1) par homographies sur le demi-plan de Poincaré H des nombres complexes de partie imaginaire strictement positive. Cette action n'est que la restriction de l'action de PGL(2, C) sur la droite projective complexe P(C) = C ∪ {∞} : la matrice agit sur P(C) par la transformation de Möbius qui en envoie z sur .
Bicycle-friendlyBicycle-friendly policies and practices help some people feel more comfortable about traveling by bicycle with other traffic. The level of bicycle-friendliness of an environment can be influenced by many factors including town planning and cycling infrastructure decisions. A stigma towards people who ride bicycles and fear of cycling is a social construct that needs to be fully understood when promoting a bicycle friendly culture.
Private sector developmentPrivate sector development (PSD) is a term in the international development industry to refer to a range of strategies for promoting economic growth and reducing poverty in developing countries by building private enterprises. This could be through working with firms directly, with membership organisations to represent them, or through a range of areas of policy and regulation to promote functioning, competitive markets. Supporters argue that PSD is an important part of poverty reduction.
