We extend the simulation-based definition of Virtual Grey Box (VGB) security – originally proposed for obfuscation (Bitansky and Canetti, 2010) – to a broad class of cryptographic primitives. These include functional encryption, graded encoding schemes, bi-linear maps (with über assumptions), as well as unexplored ones like homomorphic functional encryption. Our main result is a characterizatio...

The value of the penalized maximum likelihood method was recently shown in assessing the test-retest reliability of functional activation (Maitra et al: MRM 2002; 48:6270). We extend this methodology to the analysis of grouped functional magnetic resonance imaging (fMRI) data. Specifically we have applied this technique to two functional paradigms, (a) pain paradigm that used a mechanical probe...

objectives: this study aimed at investigating the effectiveness of mindfulness based cognitive therapy (mbct) in management of pain and functional limits of chronic pain patients. methods & materials: in this semi-experimental study, 30 volunteer female patients suffering from chronic pain attending a clinical assessment for treatment of chronic pain were recruited using the convenience samplin...

Ultrathin plasmonic metasurfaces have proven their ability to control and manipulate light at unprecedented levels, leading to exciting optical functionalities and applications. Although to date metasurfaces have mainly been investigated from an electromagnetic perspective, their ultrathin nature may also provide novel and useful mechanical properties. Here we propose a thin piezoelectric plasm...

We report the thermal annealing-induced formation of ring-like structure of Zn(II)-doped magnetite from iron alkoxide leaf-like nanoplate precusor. The phase, structure and morphology of magnetite nanorings were comprehensively characterized by powder X-ray diffraction, X-ray photoelectron spectroscopy, atomic force microscope, scanning electron microscope, and transmission electron microscope....

The preparation of thermochromic vanadium dioxide (VO2) films in an economical way is of interest to realizing the application of smart windows. Here, we reported a successful preparation of self-assembly VO2 nanoplate films on TiO2-buffered glass by a facile hydrothermal process. The VO2 films composed of triangle-shaped plates standing on substrates exhibit a self-generated porous structure, ...

Ultraviolet (UV) photodetectors are important tools in the fields of optical imaging, environmental monitoring, and air and water sterilization, as well as flame sensing and early rocket plume detection. Herein, hexagonal-like Nb₂O₅ nanoplates are synthesized using a facile solvothermal method. UV photodetectors based on single Nb₂O₅ nanoplates are constructed and the optoelectronic properties ...

Graphene-based nanocomposites have been demonstrated to be promising high-capacity anodes for lithium ion batteries to satisfy the ever-growing demands for higher capacity, longer cycle life and better high-rate performance. Synergetic effects between graphene and the introduced second-phase component are generally observed. In this feature review article, we will focus on the recent work on fo...

A simple chemical bath deposition method has been developed to study the formation of nanoplate morphology tungsten oxide. The obtained materials were characterized by field emission scanning electron microscopy, transmission x-ray diffractometry, Raman spectroscopy, and UV–vis diffuse reflectance spectroscopy. photocatalytic activity resulting samples was further evaluated degradation Rhodamin...