Abstract Self-tapping wood screws are important fasteners in timber construction. A characteristic of these is their high axial load-bearing capacity, which also depends on withdrawal capacity. This used for structural design and thus an optimization parameter screws. To increase the knowledge influence thread parameters, such as outer diameter, pitch or flank angle, required. The influences an...

Abstract In the present paper, reported literature data on grain-size dependence of resistivity Ni and Cu are critically evaluated by two conceptually different methods. One is phenomenological approach Andrews (Phys. Lett. 19: 558, 1965) according to which in a polycrystalline metal there contribution inversely proportional average grain diameter, proportionality constant defined as parameter ...

BACKGROUND & AIMS Vitamin D, best known to regulate bone mineralization, has numerous additional roles including regulation inflammatory pathways. Recently, an increased incidence of 25-hydroxyvitamin D3 (25(OH)D3) deficiency has been found in subjects suffering from liver diseases. We here investigated if low vitamin D levels might be associated with prognosis, inflammation and infectious comp...

Exposure to ambient ultrafine particles induces airway inflammatory reactions and tissue remodeling. In this experiment, to determine whether ultrafine carbon black (ufCB) affects proliferation of airway epithelium and, if so, what the mechanism of action is, we studied human primary bronchial epithelial cell cultures. Incubation of cells in the serum-free medium with ufCB increased incorporati...

In the OPTIMAL theory of motor learning [Wulf, G., & Lewthwaite, R. (2016). Optimizing performance through intrinsic motivation and attention for learning: The OPTIMAL theory of motor learning. Psychonomic Bulletin & Review, 23, 1382-1414], 3 factors are postulated to facilitate learning: enhanced expectancies (EE) for performance, autonomy support (AS), and an external focus (EF) of attention....