We present a parameterless approach to predict the shape of the infrared (IR) luminosity function (LF) at redshifts z≤ 2. It requires no tuning and relies on only three observables: (1) the redshift evolution of the stellar mass function for star-forming galaxies, (2) the evolution of the specific star formation rate (sSFR) of main-sequence galaxies, and (3) the double-Gaussian decomposition of...

Thus in the closest pack in three dimensions, the triangular pattern cannot exist without the square, and vice versa. Abstract: An earlier paper describes a program to prove the Kepler conjecture. This paper reduces the third step of that program to a system of inequalities and one exceptional connguration of spheres. Although these inequalities have not yet been rigorously established, they se...

in this paper we introduce the notion of classical quasi-primary submodules that generalizes the concept of classical primary submodules. then, we investigate decomposition and minimal decomposition into classical quasi-primary submodules. in particular, existence and uniqueness of classical quasi-primary decompositions in finitely generated modules over noetherian rings are proved. moreover, w...

in recent years, researchers have become interested in examining the effect of pettlep imagery on motor performance and how pettlep imagery can improve the performance. the aim of this study was to compare the effect of pettlep imagery and balance practice on dynamic balance in the elderly. participants were 42 male elderly in arak city. they were divided into 4 groups based on the scores of dy...

Let K be a family of graphs. A K-decomposition, D , of a graph H (called the host) is a partition of the edges of H such that the subgraph induced by each part of the partition (called blocks) is isomorphic to an element of K. The chromatic index of the decomposition, denoted χ′(D), is the minimum number of colors required to color each block in the decomposition so that blocks that share a com...

Introduction: According to the American Society of Radiation Oncology, all patients receive radiation therapy during their illness, where radiation is delivered by the medical linear accelerator (Linac). The aim of this study was to evaluate the quality assurance (QA) of the Linac in analyzing the used dose profile in the treatment of cancer tumors. Materi...

Background: Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders, affecting 5-10% of reproductive aged women. High levels of androgen hormone can be accounted as the most important symptoms in PCOS. Androgen is the precursor of steroid biosynthesis in ovary. The transport of cholesterol to the inner mitochondrial membrane through StAR protein is also necessary for andr...