It is now certain that to ensure a long term sustainable development, protected areas, the favored destinations for ecotourism, required a well written planning management. Each destination however has limited capability which is called “carrying capacity” to invite visitors. Physical, real (ecological) and effective (manageable) are different kinds of carrying capacity. The current study prese...

a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...

introduction: diabetes mellitus is an growing national and international public health concern. the number of people affected by diabetes in world by 2030 will be 69% in developing countries. regular physical activity plays a key role in the management of type 2 diabetes melitus, particularly glycemic control. it has been recommended that peoples with type 2 diabetes participate in moderate-int...

Background: Nerve growth factors reduction and blood-brain barrier distribution is one of the characteristics of multiple sclerosis (MS). Active life-style is known as a complementary and important strategy in MS therapy. The aim of the current study was to investigate the relationship between aerobic capacity and physical activity with serum level of nerve growth factors and markers of blood-b...

Background:  The highest aerobic capacity (VO2max) is one of the criteria that can be used to create a balance between work and worker. To maintain the health and physical capacity of individuals, as well as to increase production and profitability, physical work capacity (PWC) can be used to put individuals in jobs proportional to their capacities. Materials:  This cross-sectional ...