introduction dosimetric accuracy is a major issue in the quality assurance (qa) program for treatment planning systems (tps). an important contribution to this process has been a proper dosimetry method to guarantee the accuracy of delivered dose to the tumor. in brachytherapy (bt) of gynecological (gyn) cancer it is usual to insert a combination of tandem and ovoid applicators with a complicat...

background: health system pharmacies, like other health care professional, practice under a number of mandated stan­dards. basic concepts of quality assurance (qa) standards should be applied to hospital pharmacy practice. the survey re­ported here is to assess qa system implementation and its standard indicators observation in tehran university of medical sci­ences (tums) hospitals' pharmacies...

This paper investigates the determinants of sustainability report (SR) assurance and whether this is value relevant within context European Union (EU), where, under Non-Financial Reporting Directive (NFRD), reporting mandatory for large public interest entities (PIE) as fiscal year 2017. Using a sample 1832 firm-year observations from 660 listed companies over period 2017–2020, results logistic...

OBJECTIVES To evaluate the quality assurance of mammography results at a reference institution for the diagnosis and treatment of breast cancer in southern Brazil, based on the BIRADS (Breast Imaging Reporting and Data System) 5th edition recommendations for auditing purposes. MATERIALS AND METHODS Retrospective cohort and cross-sectional study with 4502 patients (9668 mammographies)) who und...

Robust electronic authentication capable of reliably identifying remote entities (human users or software components) with a certain level of assurance in authentication strength is an important prerequisite to facilitate effective user authorisation and fine-grained access control in distributed systems. In a Federated Access Management environment, users are referred back to their home or aff...

1 This work is supported by the National Science Foundation through ITR program grant No CCR 0296082, and by NASA through a grant from the NASA Office of Safety and Mission Assurance (OSMA) Software Assurance Research Program (SARP) managed through the NASA Independent Verification and Validation (IV&V) Facility, Fairmont, West Virginia. 2 Correspondence author. E-mail: [email protected] Abstract

The purpose of assurance activities is to reduce risk, thereby ensuring requirements. However, assurance activities incur costs such as budget, schedule, mass ( e g , radiation shielding), etc. The selection of assurance activities to perform is thus an assurance optimization problem. For example, for a given budget, selection of the set of assurance activities that will minimize risk (i.e., ma...