Prof. B. L. Robinson

Prof. Dr. Prof. Prof.

An Approximation Algorithm for l∞-Fitting Robinson Structures to Distances

In this paper, we present a factor 16 approximation algorithm for the following NP-hard distance fitting problem: given a finite set X and a distance d on X, find a Robinsonian distance dR on X minimizing the l∞-error ||d−dR||∞ = maxx,y∈X{|d(x, y)− dR(x, y)|}. A distance dR on a finite set X is Robinsonian if its matrix can be symmetrically permuted so that its elements do not decrease when mov...

Prof. B. Ramamurthi: contributions to Indian neurosurgery (a personal tribute).

Priyanka Sharma, Neha Arora, Prof. B. P .Singh

Design of a new sense amplifier-based flip-flop (SAFF) using GDI Technique and performance comparison of proposed SAFF with existing conventional SAFF with CMOS-NAND latch SAFF and SAFF with CMOS Symmetric latch is presented in this paper. It was found that the main drawback of existing SAFF’s is the cross-coupled set-reset (SR) latch in the output stage. The new flip-flop uses a new output sta...

Prof. B. Ramamurthi: the legend and his legacy.

Neurosurgery in India is a post World War II development, resulting from the keen desire of the new rulers of independent India, that the country should keep up with all the modern advances in every field of medicine. Madras, (now called Chennai) has always been regarded a Mecca for medical sciences in the country and has boasted of many a great medical achievement. The Madras Medical College w...