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  1. INTRODUCTOIN               Green building (also known as green construction or sustainable building)   expands and complements the building design concerns of economy, utility, durability, and comfort. A Green Building is one which uses less water, optimizes energy efficiency, conserves natural resources, generates less waste and provides healthier space for occupants as compared to conventional buildings.             Green building is the practice of creating structures and processes that are environment friendly and resource-efficient throughout the life span of a building right from site selection to design, construction, operation, maintenance, renovation and deconstruction. Green Buildings are designed to reduce the overall impact on human health and the natural environment by the following ways: •     ...

  CHAPTER-4 MATERIALS AND METHODS   4.1.1 Drugs used in the present study Drug Name Source Lamivudine Alchem laboratories, Mumbai , India   4.1.2 Excipients and chemicals used in the present study 4.1.3 List of Equipments used in the study   4.2 DOSAGE FORMS SELECTED IN THE PRESENT STUDY 4.2.1 Single unit system (matrix tablets)             Matrix drug delivery systems consist of a polymer, drug, and other excipients distributed throughout the matrix. This system is dependent on polymer wetting, polymer hydration, and polymer dissolution for the controlled release of drug. At the same time, other soluble excipients or drug substances comprising the tablet will also become wet, dissolve, and diffuse out of the matrix, while insoluble excipients or drug substances will be held in place unti...