Momentum Without Crashes

Market Crashes without External Shocks

Market crash is usually considered an indication that the fundamentals of the economy have changed and recession is around the corner. This, however, need not be the case. For instance, in October 1987 Wall Street lost over 20% of its value in one day, but this was not followed by a recession. Moreover, in the days preceding the crash, there were no significant external events or “bad news” tha...

Parton Energy Loss Without Transverse Momentum Broadening

The Jewel 1.0 Monte Carlo simulates jet evolution in a medium with a microscopic description of splitting and scattering processes. In the framework of this model we investigate the transverse momentum broadening due to medium effects in different scenarios. Depending on assumptions about hadronisation, we observe either a small increase or even a slight decrease of the mean transverse momentum...

Operational momentum effect in children with and without developmental dyscalculia

1 Center for MR-Research, University Children’s Hospital Zurich, Zurich, Switzerland 2 Children’s Research Center, University Children’s Hospital Zurich, Zurich, Switzerland 3 Center of Integrative Human Physiology, University of Zurich, Switzerland 4 Department of Childand Adolescent Psychiatry, DRK-Hospital Westend Berlin, Germany 5 Clinical Psychology and Psychotherapy, University of Potsdam...

Leading Without a Mandate: Strategies for Building Momentum

Electromagnetic energy-momentum equation without tensors: a geometric algebra approach

In this paper, we define energy-momentum density as a product of the complex vector electromagnetic field and its complex conjugate. We derive an equation for the spacetime derivative of the energy-momentum density. We show that the scalar and vector parts of this equation are the differential conservation laws for energy and momentum, and the imaginary vector part is a relation for the curl of...