In this work an efficient algorithm to perform a block decomposition for large dense rectangular matrices with entries in 2 is presented. Matrices are stored as column blocks of row major matrices in order to facilitate rows operation and matrix multiplications with block of columns. One of the major bottlenecks of matrix decomposition is the pivoting involving both rows and column exchanges. S...

We initiate a systematic study of linear sketching over F2. For a given Boolean function f : {0, 1}n → {0, 1} a randomized F2-sketch is a distributionM over d×nmatrices with elements over F2 such that Mx suffices for computing f(x) with high probability. We study a connection between F2-sketching and a two-player one-way communication game for the corresponding XOR-function. Our results show th...

To determine mechanisms underlying the transgenerational presence of metabolic perturbations in the intrauterine growth-restricted second-generation adult females (F2 IUGR) despite normalizing the in utero metabolic environment, we examined in vivo glucose kinetics and in vitro skeletal muscle postinsulin receptor signaling after embryo transfer of first generation (F1 IUGR) to control maternal...

Distortion product otoacoustic emission (DPOAE) levels in response to primary pairs (f2 = 2 or 4 kHz, L2 ranging from 20 to 60 dB SPL, L1 = 0.4L2 + 39 dB) were measured with and without suppressor tones (f3), which varied from 1 octave below to 1/2 octave above f2, in normal-hearing subjects. Suppressor level (L3) varied from -5 to 85 dB SPL. DPOAE levels were converted into decrements by subtr...

Relatively little is known about the viral factors contributing to the lethality of the 1918 pandemic, although its unparalleled virulence was likely due in part to the newly discovered PB1-F2 protein. This protein, while unnecessary for replication, increases apoptosis in monocytes, alters viral polymerase activity in vitro, enhances inflammation and increases secondary pneumonia in vivo. Howe...

Influenza A virus segment 2 is known to encode two polypeptides in overlapping open reading frames: PB1, the polymerase, and PB1-F2, a proapoptotic virulence factor. We show that a third major polypeptide is synthesized from PB1 mRNA via differential AUG codon usage. PB1 codon 40 directs translation of an N-terminally truncated version of the polypeptide (N40) that lacks transcriptase function ...

The notation and terminology used here are introduced in the following papers: [13], [15], [1], [16], [2], [4], [10], [11], [17], [5], [14], [12], [3], [7], [6], [9], and [8]. For simplicity, we adopt the following convention: x, a, b, c denote real numbers, n denotes a natural number, Z denotes an open subset of R, and f , f1, f2 denote partial functions from R to R. Next we state a number of ...

Copyright c © 2015 Abdullah Dertli, Yasemin Cengellenmis and Senol Eren. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract A method to obtain self orthogonal codes over finite field F2 is given and the parameters of quantum...

1. A new method has been developed for the specific extraction of histone fraction f2(a) from calfthymus deoxyribonucleoprotein at pH 7 by using a mixture of ethanol and guanidinium chloride. 2. Fraction f2(a) has been separated into the subfractions f2(a)1 and f2(a)2 by acetone precipitation from acid solution, and at pH7. 3. Modifications of existing electrophoretic methods are described that...