BACKGROUND Skin graft is one of the commonly done procedures by plastic surgeons, dermato surgeons and general surgeons. Pain at the donor area is a common complaint by the patient. The skin graft donor site area is usually covered with petrolatum dressing dermatosurgeons. AIM This study was done to compare collagen dressing with petroleum gauze dressing in control of post-operative pain on s...

A novel frequency domain technique for image blocking artifact reduction is presented in this paper. For each block, its DC and AC coefficients are recalculated for artifact reduction. To achieve this, a closed form representation of the optimal correction of the DCT coefficients is produced by minimizing a novel enhanced form of the Mean Squared Difference of Slope (MSDS), for every frequency ...

ultraviolet waves, because of their short wavelength, have a high energy and considerable damaging effects on surfaces. protection against ultraviolet radiations is one of the finishing treatments done on surfaces exposed to sunlight. the importance of this issue in relation to human health, due to complications such as skin burns and cancer, is doubled. up to now, different materials such as z...

Nanoscience and nanotechnology measure and manipulate matter on the nanometer scale, 10 meters. To put that in scale, the diameter of a human hair and the thickness of one sheet of newspaper are each about 100,000 nm. It is very, very, very small! Although nano as a concept is still unknown to most nonscientists around the world, the Chinese public is already enraptured with the nano concept. N...

Results from 2.5D and 3D studies of the onset development tearing instability are presented, using high fidelity resistive MHD simulations. A limited parameter study strength reconnecting field (or shear angle) was performed. An initially simple 1D equilibrium used, consisting a modified force-free current sheet, with periodic boundary conditions in all directions. In cases, linear non-linear e...

PURPOSE Rapid development of nanotechnology has recently brought significant attention to the extraordinary biological features of nanomaterials. The objective of the present investigation was to evaluate morphological characteristics of the assembles of gold and platinum nanoparticles (nano-Au and nano-Pt respectively), with Salmonella Enteritidis (Gram-negative) and Listeria monocytogenes (Gr...

Any planar resistor (channel) close to a conducting layer left floating (gate) forms a capacitor C whose thermal voltage noise (kT/C noise) has a backgating effect on the sheet resistance of the channel that is a powerful source of 1/f resistance noise in planar resistors and, hence, in planar devices. This 1/f spectrum is created by the bias voltage VDS applied to the resistor, which is a dist...

This deliverable is performed within the scope of the SURFnet Research on Networking (RoN) project. These deliverables are partly written by students of the University of Twente.