primary immunodeficiencies (pid) are a group of disorders, characterized by an unusual susceptibility to infections. delay in diagnosis results in increased morbidity and mortality in affected patients. the purpose of this study was to determine the mortality rate of iranian immunodeficient patients referred to children medical center hospital affiliated to tehran university of medical sciences...

A mutant of E. coli, isolated by Kindler and Hofschneider as a strain defective in RNase III activity, forms a 30S precursor of ribosomal RNA ("30S pre-rRNA"). The half-life of the 30S pre-rRNA in growing cells at 30 degrees , estimated by the rate of specific (3)[H]uridine incorporation, is about 1 min. In rifampicin-treated cells, the RNA is metabolized to mature rRNA with a half-life of abou...

General.?Recently it has been shown by Siddons and Bose (1944) that the compound (2-chloro-7 methoxy 5S-diethyl-amino-butyl) amino-acridine, hereafter called the butyl acridine, was highly effective in controlling the infection of Plasmodium knowlesi in rhesus monkeys even in small doses. The same compound has previously been shown by one of us (Basu and Bose, 1941) to exert a considerably high...

For convex subsets X of a topological vector space E, we show that a KKM principle implies a Fan-Browder type fixed point theorem and that this theorem implies generalized forms of the Sion minimax theorem. The von Neumann-Sion minimax theorem is fundamental in convex analysis and in game theory. von Neumann [8] proved his theorem for simplexes by reducing the problem to the 1-dimensional cases...

Let t ≥ 1 be an integer and letA be a family of subsets of {1, 2, . . . n} every two of which intersect in at least t elements. Identifying the sets with their characteristic vectors in {0, 1}n we study the maximal measure of such a family under a non uniform product measure. We prove, for a certain range of parameters, that the t-intersecting families of maximal measure are the families of all...

Many statements in the study of computational complexity can be cast as statements about Boolean functions f : {−1, 1} → {−1, 1}. However, it was only very late in the last century that the analytic properties of such functions, often expressed via the Fourier transform on the Boolean hypercube, became the key ingredient in proofs of hardness of approximation. In this short survey, we give a br...

A set of n players, each holding a private input bit, communicate over a noisy broadcast channel. Their mutual goal is for all players to learn all inputs. At each round one of the players broadcasts a bit to all the other players, and the bit received by each player is flipped with a fixed constant probability (independently for each recipient). How many rounds are needed? This problem was fir...

We show a tight lower bound of Ω(N log logN) on the number of transmissions required to compute the parity of N input bits with constant error in a noisy communication network of N randomly placed sensors, each having one input bit and communicating with others using local transmissions with power near the connectivity threshold. This result settles the lower bound question left open by Ying, S...

superior vena cava (svc) syndrome is not an uncommon occurrence in patients with malignancy and it is often described as a medical emergency. in majority of the cases, svc syndrome occurs due to mechanical obstruction of the svc by extraluminal compression with primary intrathoracic malignancies. however, intraluminal obstruction due to thrombosis can also produce symptoms and signs of svc synd...

in this case report, we present the first diagnosed case of galloway- mowat syndrome in iran. a 7 month old infant boy with microcephaly that had prominently stunted head growth after birth, gastroesophageal reflux, multiple craniofascial characters, hypothyroidism and nephrotic syndrome diagnosed at 5 months of age associated with rapid decline in renal function and heavy proteinuria in 2 mont...