scholarly journals Elevation Change Derived from SARAL/ALtiKa Altimetric Mission: Quality Assessment and Performance of the Ka-Band

2018 ◽  
Vol 10 (4) ◽  
pp. 539 ◽  
Author(s):  
◽  
◽  
◽  
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Keyword(s):  
Quality Assessment ◽  
Elevation Change ◽  
Ka Band ◽  
And Performance

Evaluation of the ARKRAY HA-8190V instrument for HbA1c

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Eline A.E. van der Hagen ◽  
Sanne Leppink ◽  
Karin Bokkers ◽  
Carla Siebelder ◽  
Cas W. Weykamp
Keyword(s):  
Quality Assessment ◽  
Concentration Level ◽  
External Quality Assessment ◽  
Clinical Samples ◽  
Diabetic Patients ◽  
External Quality ◽  
Target Values ◽  
Performance Specifications ◽  
Certification Programme ◽  
And Performance

Abstract Objectives Hemoglobin A1c (HbA1c) is a valuable parameter in the monitoring of diabetic patients and increasingly in diagnosis of diabetes. Manufacturers continuously optimize instruments, currently the main focus is to achieve faster turnaround times. It is important that performance specifications remain of high enough standard, which is evaluated in this study for the new ARKRAY HA-8190V instrument. Methods The Clinical and Laboratory Standards Institute (CLSI) protocols EP-5, EP-9 and EP-10 were applied to investigate imprecision, bias and linearity. In addition potential interferences, performance in External Quality Assessment (EQA) and performance against the HA-8180V instrument in 220 clinical samples was evaluated. Results The HA-8190V demonstrates a CV of ≤0.8% in IFCC SI units (≤0.6% National Glycohemoglobin Standardization Program [NGSP]) at 34 and 102 mmol/mol levels (5.3 and 11.5% NGSP) and a bias of −0.1 mmol/mol (−0.01% NGSP) at a concentration of 50 mmol/mol (6.7% NGSP), but with a significant slope as compared to target values. This results in a bias of −1.0 and 0.9 mmol/mol (−2.0 and 0.9% NGSP) at the 30 and 70 mmol/mol (4.9 and 8.6% NGSP) concentration level. Simulation of participation in the IFCC certification programme results in a Silver score (bias −0.1 mmol/mol, CV 1.1%). Interference in the presence of the most important Hb variants (AS, AC, AE, AD) and elevated HbA2 and HbF concentrations is less than 3 mmol/mol (0.3% NGSP) at a concentration of 50 mmol/mol (6.7% NGSP). Conclusions Analytical performance of the HA-8190V is very good, especially with respect to precision and HbA1c quantification in the presence of the most common Hb variants.

scholarly journals Noncathartic CT Colonography: Image Quality Assessment and Performance and in a Screening Cohort

2013 ◽  
Vol 201 (4) ◽  
pp. 787-794 ◽  
Author(s):  
Joel G. Fletcher ◽  
Alvin C. Silva ◽  
Jeff L. Fidler ◽  
Joseph G. Cernigliaro ◽  
Armando Manduca ◽  
...  
Keyword(s):  
Image Quality ◽  
Quality Assessment ◽  
Ct Colonography ◽  
Image Quality Assessment ◽  
And Performance

scholarly journals Accounting Policies in the Function of Quality Assessment of Financial Statements

2021 ◽  
Vol 59 (3) ◽  
pp. 357-373
Author(s):  
Jelena Raičević
Keyword(s):  
Quality Assessment ◽  
Financial Statements ◽  
Relevant Information ◽  
Cash Flows ◽  
Business Decisions ◽  
Financial Position ◽  
And Performance ◽  
Complex Relationships ◽  
A Company

Abstract Financial statements represent an instrument by which relevant information about a company is passed on to its users. Based on the information presented in the financial statements, i.e. information on the financial position and performance of the company, and generated cash flows and capital, users make business decisions. Specific accounting policies serve as the basis for the preparation of quality financial statements. Management is responsible for the preparation and presentation of financial statements and selects accounting policies. Although simple, the issue of choosing the accounting policies can be extremely delicate and complex. Besides management, there are other stakeholders who may be affected by this issue. As a consequence, there are complex relationships that affect the choice of accounting policies, and thus the quality of financial statements.

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