Corals are very efficient at using solar radiation, with photosynthetic quantum efficiencies approaching theoretical limits. Here, we investigated potential mechanisms underlying such outstanding photosynthetic performance through extracting inherent optical properties of the living coral tissue and skeleton in a massive faviid coral. Using Monte Carlo simulations developed for medical tissue o...

The charged particle community is looking for techniques exploiting proton interactions instead of X-ray absorption for creating images of human tissue. Due to multiple Coulomb scattering inside the measured object it has shown to be highly non-trivial to achieve sufficient spatial resolution. We present imaging of biological tissue with a proton microscope. This device relies on magnetic optic...

István A. Kovács, 2, ∗ Réka Mizsei, and Péter Csermely Wigner Research Centre, Institute for Solid State Physics and Optics, H-1525 Budapest, P.O.Box 49, Hungary Institute of Theoretical Physics, Szeged University, H-6720 Szeged, Hungary Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Pusztaszeri út 59-67, H-1025 Budapest, Hungary Department ...

We study a class of acoustic metamaterials formed by layers of perforated plates and producing negative refraction and backward propagation of sound. A slab of such material is shown to act as a perfect acoustic lens, yielding images with subwavelength resolution over large distances. Our study constitutes a nontrivial extension of similar concepts from optics to acoustics, capable of sustainin...

As refractive surgeons, it is safe to say we have all had our share of challenging cases. For this issue, Cataract & Refractive Surgery Today and I asked several editorial board members and other top surgeons to address a wide variety of interesting refractive complications, including suction break with the Intralase FS Laser (Intralase Corp., Irvine, CA), a lost LASIK flap, and the implantatio...

ModuLand plug-in for Cytoscape: An algorithm for the determination of extensively overlapping modules, community centrality and its use in biological networks Máté Szalay-Bekő and Robin Palotai, Balázs Szappanos, István A. Kovács, Balázs Papp and Peter Csermely Department of Medical Chemistry, Semmelweis University, Budapest, Hungary Evolutionary Systems Biology Group, Biological Research Centr...

From the Department of Physiological Optics, Vision Science Research Center, School of Optometry, University of Alabama at Birmingham, Birmingham, Alabama 35294, Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, Missouri 63110, Departments of Ophthalmology and Human Genetics, Kellogg Eye Center, University of Michigan, Ann Arbor, Michigan 4810...