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We present estimates of the non-linear bias of cosmological halo formation, spanning a wide range in the halo mass from ∼10 to ∼10 M⊙, based upon both a suite of high-resolution cosmological N-body simulations and theoretical predictions. The halo bias is expressed in terms of the mean bias and stochasticity as a function of local overdensity (δ), under different filtering scales, which is real...

We show that the baryonic gas content of the halo of our galaxy can be probed by performing a multipole expansion on the distribution of diffuse background gamma-ray emission. While the monopole moment (isotropic background) can be used to constrain the baryonic fraction of the halo gas, the quadrupole to monopole ratio is a sensitive probe of the distribution of gas in the halo, i.e. the degre...

We perform an evolutionary multivariate analysis of a sample of 54 Galactic globular clusters with high-quality colour-magnitude diagrams and well-determined ages. The four parameters adopted for the analysis are: metallicity, age, maximum temperature on the horizontal branch, and absolute V magnitude. Our cladistic analysis breaks the sample into three novel groups. An a posteriori kinematical...

Coronal Mass Ejections (CMEs) are large, energetic expulsions of mass and magnetic fields from the Sun; they can significantly affect large volumes of the heliosphere and appear to be a key cause of geomagnetic storms. The present study deals with the influence of Asymmetric 'Full' Halo CMEs, Partial Halo CMEs, Asymmetric and Complex 'Full' Halo CMEs and 'Full' Halo CMEs on cosmic ray intensity...

one of the subjects that researchers are agreed on is hafez acquaintance to music and sing. extensive studies have been conducted on musical terms in hafez works; there are some words in his poems that are surrounded by a musical halo, however theirlexical meanings are still considered through the context of the poems, but nobody can get a profound understanding out of hafez’s artistic elegance...

BACKGROUND Since there is considerable disagreement in grading cytoplasmic haloes, this prospective study was set up to evaluate if certain subtypes of haloes are related to further development. METHODS Out of a total of 152 patients, 713 zygotes could be checked for the formation of a halo. Where present, haloes were subdivided into concentric (symmetric) and polar (asymmetric) types. In add...

We examine the scale dependence of dark matter halo and galaxy clustering on very large scales (0:01 < k‰h Mpc ÿ1 Š < 0:15), due to nonlinear effects from dynamics and halo bias. We pursue a two line offensive: high-resolution numerical simulations are used to establish some old and some new results, and an analytic model is developed to understand their origins. Our simulations show: (i) that ...

Unsupervised machine learning techniques are described and applied on the mildly preprocessed Arabic text of the Holy Qur’an, with promising results. Topic modelling based on nonnegative matrix factorization was used to successfully extract meaningful topics underlying the set of 6236 verses in the corpus. Data visualization using t-SNE dimensionality reduction correctly grouped verses of the H...