The vast majority of the celestial gamma-ray sources detected so far have not yet been identified with secure counterparts at other wavelenghts. Here we report the preliminary evidence of a probable association between galaxy clusters and unidentified gamma-ray sources of high galactic latitude (|b| > 20 deg) in the Third EGRET catalog. All of the clusters which are most probably associated wit...

Although developmental timing of gene expression is used to infer potential gene function, studies have yet to correlate this information between species. We analyzed 10,921 ESTs in 3311 clusters from first- and infective third-stage larva (L1, L3i) of the parasitic nematode Strongyloides stercoralis and compared the results to Caenorhabditis elegans, a species that has an L3i-like dauer stage....

A comprehensive multicolor survey was undertaken to investigate global optical properties of Abell clusters of galaxies. This survey was christened the LowRedshift Cluster Optical Survey (LOCOS). LOCOS was devised to search for patterns of galaxy evolution induced by the environment. The generated data base contains accurate deep CCD photometric measurements (Kron-Cousins R, B and I) for a samp...

The COVID-19 pandemic has spread rapidly around the world in a frightening way. In Brazil, third country with highest number of infected and deaths from disease, it is important for government health authorities to identify federation units that stand out cases this disease target resources. circular scan statistic proposed by Martin Kulldorff allows some statistical significance relation Brazi...

BACKGROUND Based on biochemical properties, Enterobacter cloacae represents a large complex of at least 13 variant species, subspecies, and genotypes that progressively identified as the most species causing hospital-acquired infections. The aim of this study was to determine the relevance between phylogenetically related strains within the E. cloacae complex and the frequency of urinary tract ...

Gene and whole genome duplications have profoundly shaped the structure and function of the vertebrate genome. Teleost fish, which comprise approximately 50% of all known vertebrate species, have undergone a third round of whole genome duplication (3R) above and beyond the two rounds of whole genome duplication shared by all vertebrates (2R). Most non-teleost vertebrates including tetrapods hav...

The κ-space three-dimensional parameter system was originally defined to examine the physical properties of dynamically hot elliptical galaxies and bulges (DHGs). The axes of κ-space are proportional to the logarithm of galaxy mass, mass-to-light ratio, and a third quantity that is mainly surface brightness. In this paper we define self-consistent κ parameters for disk galaxies, galaxy groups a...

\Ve consider the problem of color image quantization, or clustering of the color space. vVe propose a new methodology for doing this, called model-based clustering trees. This is grounded in model-based clustering, which bases inference on finite mixture models estimated by maximum likelihood using the EM algorithm, and automatically chooses the number of clusters by Bayesian model selection, a...

Gene and whole genome duplications have profoundly shaped the structure and function of the vertebrate genome. Teleost fish, which comprise approximately 50% of all known vertebrate species, have undergone a third round of whole genome duplication (3R) above and beyond the two rounds of whole genome duplication shared by all vertebrates (2R). Most non-teleost vertebrates including tetrapods hav...

Observations have shown that the majority of massive stars, progenitors black holes (BHs), on average more than one stellar companion. In triple systems, wide inner binaries can be driven to a merger by third body due long-term secular interactions, most notably eccentric Lidov-Kozai effect. this study, we explore properties BH mergers in systems and compare their population those produced isol...