discussion: establishing the etiology, using the evidence–based strategies to improve hirsutism, and treating the underlying disorder, are essential for proper management of women with hirsutism. case presentation: the case was a 17-year-old female with severe hirsutism, oligomenorrhea, and obesity. she was evaluated to identify the etiology and diagnosed as a case of polycystic ovarian syndrom...

in this paper, we consider a class of column-weight two quasi-cyclic low-density paritycheck codes in which the girth can be large enough, as an arbitrary multiple of 8. then we devote a convolutional form to these codes, such that their generator matrix can be obtained by elementary row and column operations on the parity-check matrix. finally, we show that the free distance of the convolution...

We provide a comprehensive characterization of Band Codes (BC) as a resilient-by-design solution to pollution attacks in Network Coding (NC) based peer-to-peer live video streaming. Consider one malicious node injecting bogus coded packets into the network: the recombinations at the nodes generate an avalanche of novel coded bogus packets. Therefore, the malicious node can cripple the communica...

Digital ImageWatermarking is a process of embedding a copy righted information inside the digital image such a way that intruder is not able to trace the information. In this paper a simple visual cryptography based robust digital image watermarking scheme is presented. Watermark Robustness is obtained by using repetition codes and Security of the watermark by visual cryptography. In this metho...

We study the generalisation of Baxter’s three-colour problem to a random lattice. Rephrasing the problem as a matrix model problem we discuss the analyticity structure and critical behaviour of the resulting matrix model. Based on a set of loop equations we develop an algorithm which enables us to solve the three-colour problem recursively. PACS codes: 05.20.y, 04.60.Nc

Departments of Chemistry, Computer Science and Electrical Engineering, Radiology and Biomedical Engineering, Duke University, French Family Science Center, Box 90348, 124 Science Drive, Durham, NC, 27708 *Author e-mail address: [email protected] OCIS codes: (320.7150) Ultrafast spectroscopy, (170.6510) Spectroscopy, tissue diagnostics, (170.1610) Clinical applications, (140.3330) Laser ...

Network Coding (NC) shows great potential in various communication scenarios through changing the packet forwarding principles of current networks. It can improve not only throughput, latency, reliability and security but also alleviates the need of coordination in many cases. However, it is still controversial due to widespread misunderstandings on how to exploit the advantages of it. The aim ...

We present a construction of long MDS codes which are not of the generalized Reed-Solomon (GRS) type. The construction employs subsets S, IS I = m, of a finite field F = GF(q) with the property that no t distinct elements of S add up to some fixed element of F . Large subsets of this kind are used to construct [n=m+2,k=t+l] non-GRS MDS codes over F. T ec hn io n C om pu te r Sc ie nc e D ep ar ...