Machining operations affect the properties of final surface layer, and these can impact on its functional performance, particularly fatigue behaviour. Among machined surface, topography is one major parameter affecting The literature review has demonstrated that stress concentration factors Kt provide a more reliable estimation behaviour components. Finite Element (FE) simulations accurately ca...

abstract heavy metals uptake and their distribution in plants are different. in addition to the genetic factors, environmental factors such as interactions of heavy metals with essential elements are very important on the amount of heavy metals uptake. in this study, the effects of iron and manganese on accumulation of cadmium in shoot and root of sunflower and corn in different concentration o...

background: bromide is found naturally in groundwater and surface water. the rapid growth of industrial activities, drainage of surface runoff, and use of methyl bromide in pesticides has increased bromide discharge to the environment. disinfection of water-containing bromide causes the creation of additional products of organo-halogenated that are considered cancer-causing agents. in this stud...

The half-maximal inhibitory concentration IC[Formula: see text] is an important pharmacodynamic index of drug effectiveness. To estimate this value, the dose response relationship needs to be established, which is generally achieved by fitting monotonic sigmoidal models. However, recent studies on Human Immunodeficiency Virus (HIV) mutants developing resistance to antiviral drugs show that the ...

This article presents a brief overview of the research performed at the Human Factors Division of The University of Michigan Transportation Research Institute between 1977 and 1986. The focus of the research has been on human factors (ergonomics) aspects of road safety. Specifically, the research has dealt with the following issues: vehicle headlighting, vehicle rear lighting and signalling, ve...

Whilst vehicular and industrial contributions to the airborne particulate budget are well explored, the input due to building demolition is relatively unknown. Air quality is of importance to human health, and it is well known that composition of airborne particles can have a significant influence on both chronic and acute health effects. Road dust (RD) was collected before and after the demoli...

To put it very simply, Dr. Storr's message is this: aggression is something we cannot eradicate, but must learn to control. Without it, the human species could not exist; because of it, the human species faces extinction. Without it, the individual human being would be reduced to nothingness; because of it, he may inflict appalling suffering on himself and others of his kind. Granting Dr. Storr...