Redevelopment in Jacksonville Beach, Florida: A Coastal Zone Management Perspective

The purpose of this paper is to provide the community leaders and the concerned citizens of Jacksonville Beach, Florida with an understanding of the issues involved with development of the beachfront of that community. Too often development projects are planned and implemented with those responsible unaware of many of the factors which will impact the success of the project. The unusual qualities of the shoreline mandate careful consideration

Strong Electron-Hole Exchange in Coherently Coupled Quantum Dots

We have investigated few-body states in vertically stacked quantum dots. Due to small inter-dot tunneling rate, the coupling in our system is in a previously unexplored regime where electron-hole exchange is the dominant spin interaction. By tuning the gate bias, we are able to turn this coupling off and study a complementary regime where total electron spin is a good quantum number. The use of differential transmission allows us to obtain unambiguous signatures of the interplay between electron and hole spin interactions. Small tunnel coupling also enables us to demonstrate all-optical charge sensing, where conditional exciton energy shift in one dot identifies the charging state of the coupled partner.Comment: 10 pages, 3 figure

Comparison of image registration methods for composing spectral retinal images

Spectral retinal images have signficant potential for improving the early detection and visualization of subtle changes due to eye diseases and many systemic diseases. High resolution in both the spatial and the spectral domain can be achieved by capturing a set of narrowband channel images from which the spectral images are composed. With imaging techniques where the eye movement between the acquisition of the images is unavoidable, image registration is required. In this paper, the applicability of the state-of-the-art image registration methods for the composition of spectral retinal images is studied. The registration methods are quantitatively compared using synthetic channel image data of an eye phantom and semisynthetic set of retinal channel images subjected to known transformations. The experiments show that Generalized dual-bootstrap iterative closest point method outperforms the other evaluated methods in registration accuracy and the number of successful registrations

Melting Ice, a Hot Topic - Climate Change and the Crysosphere

Magazine of the United Nations Environment Programme discussing worldwide environmental policies and other concerns. This issue is devoted to melting ice as a result of global climate change