Analytical combat model between opposing forces

Environment and inheritance: opposing forces?

High risk of schizophrenia requires high genetic predisposition to develop schizophrenia, plus an environmental trigger. A schizophrenic family environment is commonly believed to represent this trigger. The hypothesis is presented here that, on the contrary, a high predisposition to schizophrenia in significant others protects against overt illness. The trigger may be the predominance around t...

Johanna Ivaska: Finding opposing forces in integrins

JCB • VOLUME 208 • NUMBER 6 • 2015 652 Johanna Ivaska will tell you that she never planned to continue studying integrins, the sticky transmembrane receptors that grab onto a cell’s extracellular environment, after her PhD. But somehow the integrins seemed to be stuck on her. As a PhD student at the University of Turku in Finland, Ivaska chose a laboratory investigating collagen-binding integri...

Analytical Cutting Forces Model of Helical Milling Operations

Helical milling operations are used to generate or enlarge boreholes by means of a milling tool. The bore diameter can be adjusted through the diameter of the helical path. The kinematics of helical milling on a three axis machine tool is analysed firstly. The relationships between processing parameters, cutting tool geometry characters with machined hole feature are formulated. The feed motion...

Mutually opposing forces during locomotion can eliminate the tradeoff between maneuverability and stability.

A surprising feature of animal locomotion is that organisms typically produce substantial forces in directions other than what is necessary to move the animal through its environment, such as perpendicular to, or counter to, the direction of travel. The effect of these forces has been difficult to observe because they are often mutually opposing and therefore cancel out. Indeed, it is likely th...

The Opposing Forces Diffusion Model: the Initiation and Repression of Collective Violence