Un graphe de Barak–Erdős est une version dirigée et sans cycle du aléatoire d’Erdős–Rényi. Ce construit en réalisant percolation par arêtes paramètre p sur le complet d’ensemble sommets {1,…,n}, tel que l’arête entre deux i<j orientée i vers j. La longueur plus long chemin dans ce croît linéairement avec nombre n sommets, à vitesse C(p). Dans cet article, nous utilisons un couplage modèle infin...

“Barak Cenana” is one of the local red rice (Oryza sativa) with high economic value due to its nutrient content. Some agronomic characters such as tall shoot, low number tiller, and late harvesting are drawbacks improving production. Ethyl Methyl Sulphonate (EMS) a chemical mutagen widely used improve by mutation breeding. The present research aims investigate EMS concentration suit...

“Diglosia” (língua rua) signifika uza lian rua ka liu iha komunidade ida nia laran, ida-idak ho funsaun rasik. Timor-Leste situasaun diglosia komplikadu loos, tanba nasaun laran lokál barak, ofisiál tetun portugés, mós lian-indonézia inglés. Iha artigu ne’e, autór sira analiza, durante tinan 20 ikus ita saida uma, igreja, governu, eskola, setór privadu, média, promosaun. Pergunta segundu mak ne...

In this issue of Developmental Cell, Barak et al. (2012) identify a critical role for Fgf9 and Fgf20 signaling in the nephron progenitors of the developing mammalian kidney. These Fgfs serve as survival and nephron-forming competence signals for purified Six2+ cells that represent the progenitors that normally go on to generate nephrons.

in this paper, an advanced formulation of the spectral finite element method (sfem) is presented and applied in order to carry out site response analysis of 2d topographic structures subjected to vertically propagating incident in-plane waves in time-domain. the accuracy, efficiency and applicability of the formulation are demonstrated by solving some wave scattering examples. a numerical param...

Abstract A construction of Bourgain [Bou05] gave the first 2-source extractor to break the min-entropy rate 1/2 barrier. In this note, we write an exposition of his result, giving a high level way to view his extractor construction. We also include a proof of a generalization of Vazirani’s XOR lemma that seems interesting in its own right, and an argument (due to Boaz Barak) that shows that any...

These are notes from a mini course on additive combinatorics given in Princeton University on August 23-24, 2007. The lectures were Boaz Barak (Princeton University), Luca Trevisan (University of California at Berkeley) and Avi Wigderson (Institute for Advanced Study, Princeton). The notes were taken by Aditya Bhaskara, Arnab Bhattacharyya, Moritz Hardt, Cathy Lennon, Kevin Matulef, Rajsekar Ma...