results all patients experienced improvement in the wrinkles of the side treated by the combination therapy compared to the other side. in addition, less complication was observed in the side that underwent combination therapy. conclusions our study showed that autologous fat in combination with platelet gel might have better cosmetic results as well as lesser complications in the healing of na...

BACKGROUND Central to the design of a randomised controlled trial is the calculation of the number of participants needed. This is typically achieved by specifying a target difference and calculating the corresponding sample size, which provides reassurance that the trial will have the required statistical power (at the planned statistical significance level) to identify whether a difference of...

A sample size calculation for logistic regression involves complicated formulae. This paper suggests use of sample size formulae for comparing means or for comparing proportions in order to calculate the required sample size for a simple logistic regression model. One can then adjust the required sample size for a multiple logistic regression model by a variance inflation factor. This method re...

Exact power and sample size calculation for bioequivalence studies with high order crossover designs using statistical software nQuery are presented. Such calculation can be very easily performed, and thus provides a convenient tool for practical usage.

Face detection is one of the most fundamental tasks in human-computer-interaction, surveillance, and, more recently, image retrieval. Determining the location and size of faces in input images is a prerequisite for many other applications, including face recognition. In recent years several breakthroughs have been made in this field. These days, face detectors deliver high detection rates, low ...

Compliance and Fixed-Dose Combination Therapy in a Sample of Greek Hypertensive Patients AthAnAsiA K. PAPAzAfiroPoulou, Alexios sotiroPoulos, KyriAKos souliotis, GeorGe PArchAridis, GeorGe deliGiAnnis, GeorGe GionAKis, stefAnos PAPoulis, eystAthios sKliros Hellenic Association of Research and Continuing Education in Primary Care, Athens, Third Department of Internal Medicine and Center of Diabe...

Ultrasonic and dielectrophoretic particle manipulation have been studied for particle trajectory modification and particle trapping in microfluidic channels. We report an approach that combines dielectrophoresis (DEP) and ultrasonic fields to trap and concentrate particles and cells in an aqueous suspension. By simultaneously applying electric and ultrasonic fields to the sample, the favorable ...