This paper addressed the dark matter analysis on spiral galaxy NGC 4321 (M100) by considering nine different profiles, so far lacking in scientific literature, i.e., pseudoisothermal, Burkert, NFW, Moore, Einasto, core-modified, DC14, coreNFW and Lucky13 profiles. In this paper, we analyzed rotation curve using nonlinear fitting of star, gaseous halo equations with selected VLA HI observation d...

The recent B-meson anomalies are coherently explained at the TeV scale by 4321 gauge models with hierarchical couplings reminiscent of Standard Model Yukawas. We show that such arise as low-energy limit a complete theory flavor, based on warped fifth dimension where each family is quasi-localized in different brane. Higgs identified pseudo-Nambu-Goldstone boson emerging from same dynamics respo...

With the help of the multiphase chemical evolution model (Mollá, Hardy & Beauchamps 1999) we have derived the evolutionary histories of the galaxies NGC 4303, NGC 4321 y NGC 4535. With these histories and an evolutionary synthesis model, we were able to reproduce their observed radial distributions of the spectral indices Mg2 and Fe5270. Chemical evolution models however may fit well the presen...

Juvenile or type 2 hemochromatosis (JH) is transmitted as a recessive trait that leads to severe iron overload and organ damage typically before age 30 years. Linkage to a locus on chromosome 1q has been found in most patients with JH. The recently identified causal gene encodes hemojuvelin, a protein with a proposed crucial role in iron metabolism. A second, rare type of JH, with clinical expr...

We report on the X-ray observation of the radio selected supernova SN1979C carried out with ASCA in December 1997. The supernova of type IIL was first observed in the optical and occurred in the weakly barred, almost face on spiral galaxy NGC 4321 (M100) which is at a distance of 17.1 Mpc, and contains at least three other supernovae discovered in this century. No point source was detected at t...

In this paper, we illustrate a method to enumerate two-dimensional directed animals, with compact sources, on both the square and the triangular lattice. We give a recursive description of these structures from which we deduce their generating function, according to various parameters: the area, the right half-width and the number of compact sources. We determine the average number of compact s...

Semaphorins, a large family of membranebound and secreted proteins, signal through their transmembrane receptors, the plexins. Semaphorins and plexins share structural homologies with scatter factor receptors, a family of tyrosine kinase receptors for which Met is the prototype. Semaphorins have been studied primarily in the developing nervous system, where they act as repelling cues in axon gu...

The limb movements of many multilegged animals occur in metachronal sequences, often sequences running from posterior to anterior. Such sequences are not so conspicuous in animals with few legs. However, for the walking of certain insects with variable gaits it has been possible to produce a descriptive model based on metachronal rhythms with stepping pattern varying with frequency (Wilson, 196...