Surface subsidence is common geologic hazard in coal mines when longwall mining method is applied.In this research, a Bonded Block Model (BBM) is selected to numerically simulate and analyze the surface subsidence of coal mines.Parametric study is conducted and key factors controlling the subsidence are characterized.BBM models with no bedding plan

Sexual segregation seems to be common in bottlenose dolphins, Treats whereby males and females live in different pods that mix mainly for mating.Male dolphins often use aggressive behaviour to mate with females, while females with calves may have different activity and dietary requirements to males and different susceptibility to predation.We inves

The aim of this study was to evaluate the composition, voluntary intake, and digestibility of the diet of Holstein cows, as well as milk yield and milk composition as a function of different roughage sources used under experimental feeding conditions in Brazil, through meta-analysis.The database of this study consisted of 109 experiments with 424 t

The brown bear (Ursus arctos) hibernates for 5 to 6 months each winter and during this time ingests no food or water and remains anuric and inactive.Despite these extreme conditions, bears do not develop azotemia and preserve their muscle and bone strength.To date most renal studies have been limited to small numbers of bears, often in captive envi

In the modern world, such a situation has developed that the development of nuclear energy and the use of sources of ionizing radiation in various fields of activity have created a potential threat of radiation hazard to humans.In this connection, Heating Rods the actual direction is the study of ways to increase the radioresistance of human cells