The sensory basis ofmagnetoreception in animals still remains amystery. One hypothesis ofmagnetoreception is that photochemical radical pair reactions can transducemagnetic information in specialized photoreceptor cells, possibly involving the photoreceptor molecule cryptochrome. This hypothesis triggered a considerable amount of research in the past decade. Here, we present an updated picture ...

The synthesis of optimal narrow beam low sidelobe linear array is addressed. Only the length of the array is constrained. The number, the positions and the weightings of the elements are left free. It is proven, that the optimal design is always an array with a small number of elements. One first demonstrates that among equally spaced linear arrays of given length, the sparsest Dolph-Chebyshev ...

This paper derives the optimal size and timing of interest rate target changes. Despite the simplicity of the optimal rule, we are able to replicate a number of puzzling features of interest rate targeting observed in practice, as well as explain some dynamic properties of market interest rates. Extensions to deal with monetary policy cycles, anticipated and unanticipated target changes, and th...

I study the optimal design of marketable permit systems to regulate various pollutants (e.g., air pollution in urban areas) when the regulator lives in a real world of imperfect information and incomplete enforcement. I show that the regulator should have pollution markets integrated through optimal exchange rates when the marginal-abatement cost curves in the different markets are steeper than...

Dedication This dissertation is dedicated to the memories of my beloved grandfather, Fengzhi Wu, who passed away in the year 2000. He was an outstanding artist in Chinese calligraphy. His righteous and generous personality as also demonstrated in his artworks affected me and numerous others. He was an honorable man and a lovely grandfather.

This paper discusses the use of control theory for optimum design of aerodynamic configurations. Examples are presented of the application of this msethod to the reduction of shock induced pressure drag on airfoils in two-dimensional transonic flow.

This paper studies the optimal design of long-term executive equity compensation when boards of directors make project termination decisions based on accounting information and executives can take costly actions to manipulate this information. The model shows that incentives for manipulation (i) persist even though the optimal contract requires the CEO to hold his equity for the long run (i.e.,...

The paper discusses how conflicts between the multiple objectives of policymakers (efficiency, equity, fiscal, speed of reform, signaling,...) can influence the optimal design of concessions contract for network services in infrastructure. The discussion covers the relevance of information asymmetries for the optimal regulatory regime and processes, for the optimal design of awarding processes ...

in this paper, the optimal design of a three phase surface mounted permanent magnet synchronous motor has been done by particle swarm optimization and bees algorithm. this machine has been designed for high speed applications, and an epoxy and glass fiber bandage is used for permanent magnet protection against centrifugal forces. the optimization has been done by new design equations to improve...