Recommender systems make suggestions about products or services based on matching known or estimated preferences of users with properties of products or services (contentbased), properties of other users considered to be similar (collaborative filtering), or some hybrid approach. Collaborative filtering is widely used in E-commerce. To generate accurate recommendations in collaborative filterin...

Reduction mammoplasty is one of the most frequently performed procedures in plastic surgery for macromastia or gigantomastia. Recently it is also evolved for oncoplastic breast cancer surgery due to equivalent in terms of outcome for breast conserving surgery with radiotherapy versus mastectomy. Various techniques and modification has been made to achieve long lasting and aesthetically good res...

The “peak reduction” method is a powerful combinatorial technique with applications in many different areas of mathematics as well as theoretical computer science. It was introduced by Whitehead, a famous topologist and group theorist, who used it to solve an important algorithmic problem concerning automorphisms of a free group. Since then, this method was used to solve numerous problems in gr...

Non linearity of High Power Amplifier will increase the bit error rate and hence it is necessary to perform back off from nonlinear region to linear region OFDM technology is widely used in current 4G standard. While Performing IFFT there is a possibility that some signals may be added with same phase and hence increasing peak power of signal which cease to increase peak to average power ratio ...

--------------------------------------------------------------------ABSTRACT-------------------------------------------------------------------------Multi-carrier modulation is an attractive technique for fourth generation wireless communication. Orthogonal Frequency Division Multiplexing (OFDM) is multi-carrier transmission scheme. Its high Peak to Average Power Ratio (PAPR) of the transmitted...

Elbow dislocations are a common orthopedic injury, but the ideal reduction method remains elusive. The complex trochoginglymus anatomy of the joint, along with the close proximity to neurovascular structures, makes the elbow a challenge to reduce. Elbow dislocations occur at a rate of approximately 6 to 8 cases per 100,000 individuals and account for 10% to 25% of all elbow injuries annually.1 ...

A strategy for the electrochemical detection of DNA based on catalytic hairpin assembly combined with nanocatalyst label-based redox cycling reaction signal amplification. A superior detection limit of 0.3 aM toward DNA can be achieved.