Presentación No. 147

Presentación CITA 2009

This editorial is an introduction of the special issue composed with the best papers in e-learning of CITA2009 (Congreso Iberoamericano de Telemática). This congress was organized in Gijón/Xixón, Asturies, España, in May of 2009. The two selected papers are related with different matters of elearning, such as learning objects and system architecture. In this editorial we introduce CITA 2009 and...

Presentación De La Asignatura

Comments on «Carcinoma de tiroides incidental versus no incidental: presentación clínica, tratamiento quirúrgico y pronóstico».

Background and objective: Thyroid cancer may be clinically evident as a tumor mass in the neck or as a histopathological incidental finding after thyroid surgery for an apparent benign condition. Our objective was to assess the differences in clinical signs, surgical management, and course between incidental and clinically diagnosed thyroid tumors. Methods: A retrospective study was conducted o...

Shielding evaluation of a typical radiography department: a comparison between NCRP reports No.49 and 147

Background: Designing and shielding of an appropriate radiography room has been one of the major concerns of radiation scientists since the first decade after the invention of X-rays. Recently, report No.147 of National Council on Radiation Protection and Measurements (NCRP) has been published. In this study the researchers have investigated the effect of new report recommendation on primary an...

Tnet_a_638968_p 143..147

Neural networks show a progressive increase in complexity during the time course of evolution. From diffuse nerve nets in Cnidaria to modular, hierarchical systems in macaque and humans, there is a gradual shift from simple processes involving a limited amount of tasks and modalities to complex functional and behavioral processing integrating different kinds of information from highly specializ...