introduction: well type ionization chamber is a measuring device which is used to determine the activity of brachytherapy sources. the chamber has a cylindrical volume in which a cylindrical tube is mounted in the middle of the chamber. for the measurements, the brachytherapy sources are transferred to the middle of the tube. materials and methods: for designing the well type chamber, the measu...

severe combined immunodeficiency (scid) represents a rare group of primary immunodeficiency disorders (pids), with known or unknown genetic alterations. here, we report a new interleukin 2 receptor, gamma chain (il-2rg) mutation in an iranian scid newborn.the patient was a 6-day old boy with a family history of pid. the child was screened using a molecular-based analysis for the assessment of t...

Pandora, a double concerto for viola, cello and chamber orchestra was written by Lazar Đorđević (b. 1992) as the final work his DMus degree, premiered on 2 February 2022 in Belgrade. Pandora draws many parallels with works Đorđević’s supervisor, Zoran Erić 1950), one of most prominent Serbian postmodern composers; yet, own “postmodernism” is very different from that predecessors. thus provides ...

Numerical information can be perceived at multiple levels of abstraction (e.g., one bird, or a flock of birds). The unit of input for numerosity perception can therefore involve a discrete object, or a set of objects grouped by shared features (e.g., color). Here we examine how the mere co-occurrence of objects shapes numerosity perception. Across three between-subjects experiments, observers v...

ABSTRACT The highly tangled magnetic field of a magnetar supports shear waves similar to Alfvén in an ordered field. Here, we explore if torsional modes excited the stellar interior and magnetosphere can explain quasi-periodic oscillations (QPOs) observed tail giant flare SGR 1900+14. We solve initial value problem for that couples relativistic magnetosphere. Assuming arise from sudden release ...