Cytogenetic analyses were performed on fishes of the genus Hypostomus (Hypostomus ancistroides (Ihering, 1911), Hypostomus strigaticeps (Regan, 1908), Hypostomus regani (Ihering, 1905), and Hypostomus paulinus (Ihering, 1905)) from the seven tributaries of the Paranapanema River Basin (Brazil) by means of different staining techniques (C-, Ag-, CMA3- and DAPI-banding) and fluorescence in situ h...

The contribution provides a comparison of consequences stemming from D-brane theories and Expansive Nondecelerative Universe model, and calls attention to coincidence of the results arising from the mentioned approaches to a description of the Universe. It follows from the comparison that the effects of quantum gravitation should appear at the energy near to 2 TeV. D-brane theories of the Unive...

The globular clusters that we observe in galaxies may be only a fraction of the initial population. Among the evolutionary in uences on the population is the destruction of globular clusters by tidal forces as the cluster moves through the eld of in uence of a disk, a bulge, and/or a putative nuclear component (black hole). We have conducted a series of N-body simulations of globular clusters o...

We have obtained high-dispersion spectra for four massive star clusters in the dwarf irregular galaxies NGC 4214 and NGC 4449, using the HIRES spectrograph on the Keck I telescope. Combining the velocity dispersions of the clusters with structural parameters and photometry from images taken with the Hubble Space Telescope, we estimate mass-to-light ratios and compare these with simple stellar p...

Supermassive black holes in giant elliptical galaxies are remarkably faint given their expected accretion rates. This motivates models of radiatively inefficient accretion, due to either ion-electron thermal decoupling, generation of outflows that inhibit accretion, or settling of gas to a gravitationally unstable disk that forms stars in preference to feeding the black hole. The latter model p...

We use very deep near-infrared (NIR) imaging data obtained in MOIRCS Deep Survey (MODS) to investigate the evolution of the galaxy stellar mass function back to z ∼ 3. The MODS data reach J = 24.2, H = 23.1, K = 23.1 (5σ, Vega magnitude) over 103 arcmin (wide) and J = 25.1, H = 23.7, K = 24.1 over 28 arcmin (deep) in the GOODS-North region. The wide and very deep NIR data allow us to measure th...

I present results from numerical N-body simulations regarding the effect of merging events on the angular momentum distribution of galactic halos as well as a comparison of halo growth in semi-analytic vs. N-body methods. A total of six simulations are used spanning 3 cosmologies: a standard flat Ω0 = 1 model, an open Ω0 = 0.3 model and a “tilted” flat Ω0 = 1 model with spectral index n = 0.8. ...

24 Background: Combination inhaled therapy with long-acting β2-agonist (LABA) and corticosteroid 25 is beneficial in treating asthma and chronic obstructive pulmonary disease (COPD). 26 Objective: In asthma, LABAs enhance glucocorticoid receptor (GR) nuclear translocation in the 27 presence of corticosteroids. Whether this biological mechanism occurs in COPD, a relatively 28 corticosteroid-resi...

We study the formation and evolution of Hii regions around the first stars formed at redshifts z = 10 − 30. We use a one-dimensional Lagrangian hydrodynamics code which self-consistently incorporates radiative transfer and non-equilibrium primordial gas chemistry. The star-forming region is defined as a spherical dense molecular gas cloud with a Population III star embedded at the center. We ex...

The purpose of this investigation was to evaluate the postactivation potentiation (PAP) effects of both dynamic and isometric maximum voluntary contractions (MVCs) on sprint and jump performance and establish whether PAP methods could be used effectively in warm up protocols for soccer players. Twelve male soccer players performed 4 warm up protocols in a cross over, randomised and counterbalan...