We thoroughly investigate conformally Schwarzschild spacetimes in different coordinate systems to seek for physically reasonable models of a cosmological black hole. assume that conformal factor depends only on the time and spacetime is asymptotically flat Friedmann-Lema\^{\i}tre-Robertson-Walker universe filled by perfect fluid obeying linear equation state $p=w\rho$ with $w>-1/3$. In this cla...

With insight from examples and physical arguments, the Tolman-Ehrenfest criterion of thermal equilibrium for test fluids in static spacetimes is extended to local conformally geometries. The temperature rescaled fluid scales with inverse conformal factor, reproducing evolution cosmic microwave background Friedmann universes, Hawking Sultana-Dyer cosmological black hole, a heuristic argument by ...

Proliferative kidney disease (PKD) is a serious infection of wild and farmed salmonids, affecting mainly the kidney and spleen but becoming systemic in most susceptible fish hosts. This report deals with the transmission of Tetracapsula bryosalmonae Canning, Curry, Feist, Longshaw & Okamura 1999 from naturally infected bryozoans Fredericella sultana Blumenbach 1779 to naive rainbow trout Oncorh...

various destructive and non-destructive methods are used to measure the maturity and internal quality parameters of fruits. destructive methods often consume time and are costly. in this study, the ability of near infrared spectroscopy for prediction of the quality properties such as soluble solids content, titratable acid, ph, total phenol and extract anthocyanin of 'bidaneh ghermez'...

Leo-II cooperates with other theorem-provers to prove theorems in classical higherorder logic. It returns hybrid proofs, which contain inferences made by Leo-II as well as the backend provers with which it cooperates. This article describes recent improvements made to Leo-II.

  Mahisefid is the most popular fish in Iran with the highest economic value. The analysis of mitochondrial DNA has been extensively used as a marker for population genetic studies and is a powerful tool in studies of gene flow and evolutionary biology. Two hundred ninety four samples were collected from Sefid Rud River (100), Lamir River (98), Shir Rud River (48) and Tajan River (48) during s...