A subdifferentiable global contact detection algorithm, the Supporting Separating Hyperplane (SSH) algorithm, based on the signed distance between supporting hyperplanes of two convex sets is developed. It is shown that for polyhedral sets, the SSH algorithm may be evaluated as a linear program, and that this linear program is always feasible and always subdifferentiable with respect to the con...

BACKGROUND Metal-working fluids contain complex mixtures of chemicals and metal workers constitute a potential risk group for the development of allergic contact dermatitis. CASE PRESENTATION Two metal workers developed allergic contact dermatitis on the hands and lower arms from exposure to a neat oil used in metal processing. Patch testing revealed that the relevant contact allergen was a c...

Contact hypersensitivity (CH) to simple haptens and acute allograft rejection are generally regarded as T cell-mediated responses. However, at the present time, considerable controversy exists concerning the precise phenotype of the effector cells that are the proximate causes of inf lammation and tissue destruction. In transplantation immunity, the assumption of a decade a g o t h a t cytotoxi...

BACKGROUND Nickel in metallic items has been regulated in Denmark since 1990; however, 10% of young Danish women are still sensitized to nickel. There is a need for continuous surveillance of the effect of regulation. OBJECTIVES To identify current self-reported metallic exposures leading to dermatitis in nickel-allergic patients, and the minimum contact time needed for dermatitis to occur. ...

Mechanical activation in mechanical removal of GaN using diamond tip and mechanochemical Al2O3 are described by the Archard equation mechanically assisted Arrhenius-type kinetic model, respectively. Evident material-removal under elastic contact occurs with assistance interfacial reactions. By analyzing reactions model Hertzian mechanics, critical volume barrier determined semiquantitatively. T...

The objective of the work was to develop an algorithm for pharmaceutical consulting on sale essential oils. To achieve set goal study, a content analysis information array data aromatherapy products carried out. obtained made it possible systematize aromatic agents according groups depending their type and application (essential oils, base cosmetic massage baths, saunas bathtubs). Having system...