We study interactions between localized scatterers on metallic carbon nanotubes by a mapping onto a onedimensional Casimir problem. Backscattering of electrons between localized scattering potentials mediates long-range forces between them. We model spatially localized scatterers by local and nonlocal potentials and treat simultaneously the effects of intravalley and intervalley backscattering....

Given the abundance of cameras and LCDs in today's environment, there exists an untapped opportunity for using these devices for communication. Specifically, cameras can tune to nearby LCDs and use them for network access. The key feature of these LCD-camera links is that they are highly directional and hence enable a form of interference-free wireless communication. This makes them an attracti...

Authors Dina H. Kandil, MD, FCAP* Department of Pathology, University of Vermont, Burlington, Vermont Philip A. Branton, MD Department of Pathology, Inova Fairfax Hospital, Fairfax, Virginia Anthony Montag, MD Department of Pathology, University of Chicago Medical Center, Chicago, Illinois Esther Oliva, MD Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts Kumarasen ...

Janice R. Perussi* Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, 13560-970 São Carlos SP, Brazil Dina N. Paltoo Cancer Prevention Fellowship Program, National Cancer Institute, 6116 Executive Boulevard, Suite 705, 20892, Baltimore MD, U.S.A. Veronica A. L. Toppin and Robert G. Canada Department of Physiology and Biophysics, Howard University College of Medicine, 520 W S...

Ayurveda does not stand simply for the cure of certain diseases in individuals. It aims at keeping both the individual and the society healthy and happy by preservation and promotion of physical and mental health and prevention of diseases. These measures are described in detail in the form of dina carya, rtu carya and ratri carya. For a common man, these practices are prescribed in the form of...

BACKGROUND Profiling of jobs in terms of competency requirements has increasingly been applied in many organizational settings. Testing these competencies through situational judgment tests (SJTs) leads to validity problems because it is not usually clear which constructs SJTs measure. The primary purpose of this paper is to evaluate whether the application of cognitive diagnosis models (CDM) t...

Conventional and wavelet methods are combined to characterize gravity-waves (GWs) produced by two intense tropical cyclones (TCs) in the upper troposphere and lower stratosphere (UT/LS) from GPS winsonde data. Analyses reveal large contribution of GWs induced by TCs to wave energy densities in the UT/LS. An increase in total energy density of about 30% of the climatological energy density in au...

1Corina Radu, 1Magdalena Meszaros, 1Dana Crisan, 2Ofelia Anton, 3Ioana Rusu, 1Liliana Dina, 1Mircea Grigorescu, 4Nadim Al Hajjar, 4Molnar Geza 1 Department of Gastroenterology, “Octavian Fodor” Institute of Gastroenterology and Hepatology, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania; 2 Department of Radiology and Computed Tomography, “Octavian Fodor” Institute of...

BACKGROUND: Prosmoking messages, delivered through marketing and the media, can reach very young children and influence attitudes and behaviors around smoking. This study examined the reach of tobacco marketing to 5 and 6 year olds in 6 lowand middle-income countries. METHODS: Researchers worked one-on-one with 5 and 6 year olds in Brazil, China, India, Nigeria, Pakistan, and Russia (N = 2423)....