Water resources are a key factor restricting human survival and social and economic development.The Miyun Reservoir, which is the only surface drinking water source in Beijing and the water storage reservoir of the South-to-North Water Diversion Project, plays a decisive role in ensuring water-use sustainability of the capital.This study focused on
The anterior cervical spine surgery is a common procedure to stabilize vertebrae damaged by various diseases.The plates and screws are usually used in the spine fixation.This kind of instrumentation may detach from the bones which is a rare but well-known complication.A 77-year-old male presented to the otorhinolaryngology department with throat pa
In order to analyze the evolution of cooperatives up to the present day, with a critical approach from theory and practice, definitions and typologies, values and principles, as well as the fulfillment of the cooperative identity, were examined through theoretical, historical-logical and analysis and synthesis methods.The main results obtained were
Target essie well nested energy of this article is to consider particularities of human factor influence in professional activity of aviation maintenance specialists.In consequence of theoretic analysis of studying of this problem were discovered preconditions and recent trends of development of human factor at specialists of this activity area as
Modern complex systems include products and services that comprise many interconnected pieces of integrated hardware and software, which are expected to serve humans interacting with them.As technology advances, expectations of a smooth, flawless system operation grow.Model-based systems engineering, an approach based on conceptual models, copes wi