Developments in understanding of Baryogenesis are reviewed. We start with early motivations and the proposals in the context of GUTs. Next, the importance of the sphaleron solution and its implications are discussed. Studies of the Standard Model reveal that the latter has a Higgs structure incompatible with existence of observed B asymmetry. We then discuss a generic scenario for electroweak b...

A large family of noncommutative Einstein-Maxwell null pp -waves to order one in the noncommutativity parameters is constructed. They are solutions to the Einstein and field equations for general relativity coupled to a Seiberg-Witten electromagnetic field. Noncommutativity enters the spacetime metric through a conformal factor and is responsible for dilating/contracting the separation between ...

The economy of Mexico is diversified, with the highest proportion of activity in its formal economic structure. Services account for 47.3 percent of GDP, community and social services 22.4 percent, financial services 13.5 percent, and transport and communications 11.4 percent. Industry generates 28.2 percent of GDP, and agriculture 5 percent. The informal sector is large. Although estimates of ...

A coordinate transformation is found which diagonalizes the axisym-metric pp-waves. Its effect upon concrete solutions, including impulsive and shock waves, is discussed.

We obtain the pp-waves of D = 5 and D = 4 gauged supergravities supported by U (1) 3 and U (1) 4 gauged field strengths respectively. We show that generically these solutions preserve 1/4 of the supersymmetry, but supernumerary supersymmetry can arise for appropriately constrained harmonic functions associated with the pp-waves. In particular it implies that the solutions are independent of the...

We consider aspects of holography in the pp-wave limit of AdS5 × S. This geometry contains two R’s, one obtained from AdS5 directions, and the other from the S. We argue that the holographic direction in the pp-wave background can be taken to be r, the radial direction in the first R. Normalizable modes correspond to states, and non-normalizable modes correspond to deformations of the boundary ...

[12] W. F. Punch, et al, " A genetic algorithm approach to design of advanced composite material structures " , MSU Reference paper, 1993. 18 coded into the genome. A branch-and-bound method was considered, but rejected as too expensive. Also, a left-to-right march was considered. Perhaps one of these approaches are actually worth attempting. Different parallel structures could be attempted. As...

We synthesised analogues of diphosphoinositol polyphosphates (PP-InsPs) in which the diphosphate is replaced by an α-phosphonoacetic acid (PA) ester. Structural analysis revealed that 5-PA-InsP(5) mimics 5-PP-InsP(5) binding to the kinase domain of PPIP5K2; both molecules were phosphorylated by the enzyme. PA-InsPs are promising candidates for further studies into the biology of PP-InsPs.

Sterkfontein Member 4, a 2.4 million year old karstic cave in South Africa, has yielded three species of Parapapio, including Pp. broomi, Pp. jonesi and Pp. whitei. Prior analyses of dental metric variation have indicated that Pp. whitei exhibits the largest molars, followed by Pp. broomi, with Pp. jonesi having the smallest. However, craniofacial morphometrics and isotopic values have shown a ...