We have investigated the pattern and extent of nucleotide diversity in 10 X-chromosomal genes where mutations are known to cause mental retardation in humans. For each gene, we sequenced the entire coding regions from cDNA in humans, chimpanzees and orangutans as well as about 3kb of genomic DNA in 20 humans sampled worldwide and in 10 chimpanzees representing two " subspecies ". Overall nucleo...

This paper discuss the Low Complexity Post-Coded MIMO OFDM (PC-MIMO OFDM) Systems: Design and performance analysis. The signal is propagating from the transmitter to receiver along number of different paths, referred as multipath in wireless environment. Path loss, macroscopic fading and microscopic fading are propagating signal power drops. Orthogonal Frequency Division Multiplexing (OFDM) pro...

Radio-frequency identification (RFID) blind spots are the regions within the maximum operating range of the RFID system where the RFID reader fails to read the RFID tag. The existence of blind spots have troubled supply chain management and RFID system engineers because any failed or omitted reading of RFID tag would slow down the inventory tracking process. This paper studies the potential loc...

Introduction: There is increasing interest [1], [2], [3], [4] in space-time coding for multiple input multiple output (MIMO) frequency selective wireless channels. This paper addresses space-time code design for such channels from a single carrier perspective. We derive code construction criterion for exploiting full spatio-temporal diversity in the channel. We analyze the delay diversity code ...

frequency of vocabulary used in a piece of writing, prose or poetry, is one of the stylistic features of the writer. words are like bricks which constitute the structure of a literary work, and the way the writer puts or organizes the words , reflects his/her literary characteristics which in turn distinguishes him/her from other writers. being simply one of the elements constituting the writer...