A novel method for determination of mass attenuation coefficient of x-rays employing NaI (Tl) detector system and radioactive sources is described.in this paper.A rigid geometry arrangement and gating of the spectrometer at FWHM position and selection of absorber foils are all done following detailed investigation, to minimize the effect of small a
The Prevalence of Parasitic Contamination of Fresh Vegetables in Tehran, Iran
Objective:Parasitic diseases have created numerous health and economic problems in developing and developed countries.One of the most prevalent ways of transmitting diseases is by consuming raw vegetables that are contaminated with Jewellery Set parasites.With respect to the importance of healthy vegetable consumption, an awareness of vegetable sta
Stochastic Inflation at NNLO
Abstract Stochastic Inflation is an important framework for understanding the physics of de Sitter space and the phenomenology of inflation.In the leading approximation, this approach results in a Fokker-Planck equation that calculates the probability distribution for a light scalar field as a function of time.Despite its successes, the quantum fie
Accounting and the management of internal interdependencies: 14th century archival sources from the Comune of Siena
The aim of this study is to explore the role that accounting systems effectively played in managing the internal relationships among the various administrative bodies of the Comune (City State) of Siena in the 14th century.This period was characterized by an ever increasing need to monitor economic activities, a need perceived by the Comune with re