Quality Assessment
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2021 ◽  
A. Kumaraguruparan ◽  
K.W.J.P. Wijesundara ◽  
U.G.D Weerasinghe ◽  

The definition of sustainability has evolved since it was defined by the Brundtland commission in 1987, and become comprehensive over time with defined social, environmental and economy based ‘Sustainable Development Goals’. Today the necessity and feasibility of inclusion of safety and comfort as key components of sustainable development of urban streets has become vital considering the number of accidents and crimes taking place in urban contexts. High number of road accidents have been recorded in Colombo as noted from the report issued by the Sri Lanka Department of Census and Statistics. This is primarily due to lack of regulations or any ratification on enforcing physical safety and comfort aspects. Therefore considering the principles of sustainability, and sustainability rating being established an universal quality assessment tool, it is important to incorporate physical safety and comfort as an element of sustainability in designing urban streets. The analysis is done by defining sustainability through literature review, identifying the research gap on physical safety and comfort using VOSviewer software, and assessing the significance of safety and comfort in designing urban streets using available online data.

2021 ◽  
Vol 6 (7) ◽  
pp. 82-86
A. J. Adese ◽  
O. D. Olajide

The frequent collapse of buildings in Nigeria has necessitated carrying out a quality check not only on the structural design of these buildings but also on the materials used in their construction. Sandcrete blocks are used as a walling unit mostly because they are cheap and fast to produce. They can also be use as either load-bearing or non-load bearing purpose. Hence, this paper gives an in-depth quality assessment of sandcrete blocks commercially produced in Okitipupa Local Government Area of Ondo State, Nigeria. Six sandcrete block producing locations were visited within the local government and both six inches (6″) blocks (450×150×225 mm) and nine inches (9″) blocks (450×225×225 mm) from each location were randomly collected, together with their soil samples. Twenty-four control samples of 6″ and 9″ sandcrete blocks were also produced in accordance with the Nigerian Industrial Standard (NIS 87: 2007). Specific gravity test, silt/clay content and sieve analysis test were performed on each soil samples from different locations to check their suitability for block production, in addition, bulk density, compressive strength and water absorption were performed on the collected sandcrete blocks. In general, the compressive strength of the block samples was between 1.09 N/mm2 to 1.19 N/mm2 for six inches and 1.37 N/mm2 to 1.64 N/mm2 for nine inches which falls below the 2.5 N/mm2 and 3.45 N/mm2 minimum recommendation given by the NIS.

2021 ◽  
pp. 028418512110558
Pan Yang ◽  
Yajie Tang ◽  
Hongying Wang ◽  
Xiangxiang Zhang ◽  
Boyang Yang

Background Early diagnosis of biliary atresia (BA) is an important clinical challenge. Purpose To summarize the latest diagnostic performance of different ultrasonic (US) features for BA. Material and Methods MeSH terms “biliary atresia” and “ultrasonography” and related hyponyms were used to search PubMed, EMBASE, and the Cochrane Central Register of Controlled Trials. Eligible articles were included and data were retrieved. The methodologic quality was assessed by version 2 of the Quality Assessment of Diagnostic Accuracy Studies tool. Estimated sensitivity and specificity of each US feature were calculated by Stata 14.0. Results Fifty eligible studies on 5622 patients were included. Respective summary sensitivity and specificity were 77% (95% CI=69–84) and 98% (95% CI=96–99) for triangular cord sign (TCS) in 32 studies, 86% (95% CI=78–92) and 86% (95% CI=72–94) for shear wave elastography (SWE) in seven studies, 75% (95% CI=65–83) and 92% (95% CI=86–95) for gallbladder and biliary system abnormality (GBA) in 25 studies, and 81% (95% CI=69–90) and 79% (95% CI=67–87) for hepatic artery (HA) enlargement in seven studies. The overall US features from 11 studies yielded a summary sensitivity of 84% (95% CI=72–92) and specificity of 86% (95% CI=77–92). Conclusion TCS and GBA were the two most widely accepted US features currently used for differential diagnosis of BA. The newly developed SWE was an objective and convenient method with good diagnostic performance. HA enlargement can be used as an auxiliary sign.

Food Control ◽  
2021 ◽  
pp. 108737
Lenka Česlová ◽  
Kateřina Pravcová ◽  
Miroslava Juričová ◽  
Jan Fischer

Cancers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 6047
Denisse Champin ◽  
Max Carlos Ramírez-Soto ◽  
Javier Vargas-Herrera

Little is known regarding the usefulness of the smartphone in the detection of uterine cervical lesions or uterine cervical cancer. Therefore, we evaluated the usefulness of the smartphone in the detection of uterine cervical lesions and measured its diagnostic accuracy by comparing its findings with histological findings. We conducted a systematic review to identify studies on the usefulness of the smartphone in detecting uterine cervical lesions indexed in SCOPUS, MEDLINE/PubMed, Cochrane, OVID, Web of Science, and SciELO until November 2020. The risk of bias and applicability was assessed using the Quality Assessment of Diagnostic Accuracy Studies-2 tool. A total of 16 studies that evaluated the usefulness of the smartphone in the detection of uterine cervical lesions based on the images clicked after visual inspection with acetic acid (VIA), Lugol’s iodine (VILI), or VIA/VILI combination were included in the study. Five studies estimated diagnostic sensitivity and specificity, nine described diagnostic concordance, and five described the usefulness of mobile technology. Among the five first studies, the sensitivity ranged between 66.7% (95% confidence interval (CI); 30.0–90.3%) and 94.1% (95% CI; 81.6–98.3%), and the specificity ranged between 24.0% (95% CI; 9.0–45.0%) and 85.7% (95% CI; 76.7–91.6%). The risk of bias was low (20%), and the applicability was high. In conclusion, the smartphone images clicked after a VIA were found to be more sensitive than those following the VILI method or the VIA/VILI combination and naked-eye techniques in detecting uterine cervical lesions. Thus, a smartphone may be useful in the detection of uterine cervical lesions; however, its sensitivity and specificity are still limited.

Elena I. Zimina

National libraries as well as any other progressive institutions have to assess the results of their performance. Depending on the type, functions, structure, areas of activities, organizational and financial methods, any national library can test wide sets of performance indicators consistent with its mission. Those indicators may differ from the indicators being tested by other national libraries. Quite often national libraries can also use additional indicators if financial/sponsoring organizations or target user groups etc. require this.The paper considers the methods and procedures for measuring quantitative indicators of national libraries’ performance according to the new international standard ISO 21248:2019 “Information and documentation: Quality assessment for national libraries”, which is partially based upon the ISO 11620:2008 standard “Information and documentation. Library performance indicators”. The author presents specific examples for calculating indicators using formulas and detailed description of steps for calculation of indicators depending on the library mission and goals. Along with qualitative indicators, the new standard recommends to use qualitative indicators to assess the impact of national libraries not only on their users, but also on society as a whole. In recent years, libraries have developed and probated methods to justify their importance. One of those methods is user surveying by means of special questionnaires made on the basis of ISO 16439:2014 standard “Information and documentation. Methods and procedures for assessing the impact of libraries” and circulated by libraries among their users to educe and differentiate interests of different user groups to provide them with subsequent target service.

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