Sliding filament model of muscle contraction. A myofibril (also known as a muscle fibril) is a basic rod-like unit of a muscle cell. Muscles are composed of tubular cells called myocytes, known as muscle fibers in striated muscle, and these cells in turn contain many chains of myofibrils.
Sustainable management is a resource management technique that seeks to make any harvesting or consumption of natural resources as sustainable as possible. Thus, the main goal is to replenish any resources as fast as they are depleted.n order to accomplish its goal, sustainable management often looks at two different factors: the rate of consumption and the rate of replenishment. In many cases, the goal is to keep these two factors in equilibrium.
(May 2014). Corporate sustainability is a business approach that creates long-term consumer and employee value by creating a green strategy aimed toward the natural environment and taking into consideration every dimension of how a business operates in the social, cultural, and economic environment. Beyond the business case for corporate sustainability, by T Dyllick, K Hockerts, in Business Strategy and the Environment, 2002.  2 Concepts and definitions of CSR and corporate sustainability, M Van Marrewijk, Journal of Business Ethics, 2003.