Search results for " Reliability."
showing 10 items of 551 documents
Human error contribution to accidents in the manufacturing sector: A structured approach to evaluate the interdependence among performance shaping fa…
2023
Since the 1970s, Human Reliability Analysis (HRA) methods have received a great interest for the quantification of the Human Error Probability (HEP) in Nuclear Power Plants (NPPs). To this purpose, the second-generation HRA methods consider contextual and cognitive factors - named Performance Shaping Factors (PSFs) - that may influence the workers’ performance during tasks execution. Despite the recent extension of HRA methods to different fields, only few studies refer to the manufacturing sector. In addition, the majority of contributions assume the independence among PSFs, which may result in an over or under estimation of HEP. Therefore, the present paper focuses on the manufacturing se…
Polyphenols, methylxanthines, fatty acids and minerals in cocoa beans and cocoa products
2019
In this study, the nutritional profile and some health benefit of three cocoa bean samples of different origins, including Perù, Ecuador (Criollo) and Ghana (Hybrid) and five samples of cocoa products from Criollo variety at different percentage of cocoa solids (from 70 to 100%), are investigated. The Ecuadorian beans were of the same batch used to obtain the chocolate samples (70% cocoa solids) by processing without conching. All samples were analyzed for their proximate composition, mineral content, fatty acids, total polyphenols, catechin, epicathechin theobromine and caffeine. Fatty acid profiles of the cocoa products were quite similar to those obtained in cocoa beans. The atherogenici…
Applying Benford’s Law to Monitor Death Registration Data: A Management Tool for the COVID-19 Pandemic
2021
In Spain, the COVID-19 pandemic has impacted the various regions of the country differ7 ently. The availability of reliable and up-to-date information has proved to be fundamental for the 8 management of this health crisis. However, especially during the first wave of the pandemic (Feb9 ruary-August 2020), the disparity in the recording criteria and in the timing of providing these fig10 ures to the central government created controversy and confusion regarding the real dimension of 11 the pandemic. It is therefore necessary to have objective and homogeneous criteria at the national 12 level to guide health managers in the correct recording and evaluation of the magnitude of the pan13 demic…
Reliability Analysis of a Controlled Stage-Constructed and Reinforced Embankment on Soft Ground Using 2D and 3D Models
2020
Geosynthetic reinforcement has become a very practical technique to improve geotechnical structure safety. In spite of improved soil behavior, structures are affected by uncertainties related to soil and reinforcement material properties. This paper aims to present a reliability analysis in order to take statistical information (uncertainties) into account in a safety analysis of reinforced embankments. The analysis was used in a case study on a controlled stage-constructed embankment on soft ground in order to investigate its probabilistic stability. Modeling was performed by commercial geotechnical software usage (GeoStudio and RocScience packs, SIGMA/W+SLOPE/W and SLIDE³, respectively) a…
LONG-TERM STRUCTURAL DEFICIENCIES IN A MAT FOUNDATION ON CLAY SOIL
2013
A 3-story building with a mat foundation consisting of a slab on a grid of grade beams performed poorly on clay soil. Cracking of the slab became rogressively worse as a result of the incorrect esign and fluctuations in the groundwater pressure under the foundation. The cyclic presence and absence of water rusted the steel reinforcement, and the sulfates in the clay soil caused formation of ettringite in the concrete. Plastic hinges formed in the slab and settlements occurred, causing damage to the beams. The situation is still in progress and may lead to the collapse of the structure under normal service conditions. The geotechnical and structural investigations performed to survey and ass…
Assessing risky and protective behaviors among pedestrians in the Dominican Republic: New evidence about pedestrian safety in the Caribbean
2021
Abstract Introduction Research on pedestrians’ behavior and safety in low and middle-income countries (LMICs) is scarce, compared to high-income economies. This study aimed to present the validation of the Walking Behavior Questionnaire (WBQ), which has not been tested before in the Dominican Republic, and to evaluate age differences in walking-related self-reported behaviors. Methods For this study, a nationwide sample of 1026 pedestrians answered a questionnaire on risky and safe walking behaviors. Psychometric properties of the WBQ, variable correlations and age-based differences in walking were tested. Results Overall, the WBQ presented an adequate structure, goodness-of-fit indexes, an…
Testing reliability and validity of Lorensen’s Self-care Capability Scale (LSCS) among older home-living, care-dependent individuals in Norway
2012
dale b., saevareid h. i., soderhamn o. (2013) Testing reliability and validity of Lorensen’s Self-care Capability Scale (LSCS) among older home-living, care-dependent individuals in Norway. International Journal of Older People Nursing 8, 166–173 doi: 10.1111/j.1748-3743.2012.00339.x Aim and objective. The aim of this study was to test reliability and validity of the Lorensen’s Self-Care Capability Scale (LSCS). Background. The assessment of self-care capability among older people living at home is essential for maintaining independence for as long as possible. Method. The study sample consisted of 242 home nursing patients who were 75 + years old and living at home. The responsible home…
Associations between family-related factors, breakfast consumption and BMI among 10- to 12-year-old European children: the cross-sectional ENERGY-stu…
2013
Objective: To investigate associations of family-related factors with children's breakfast consumption and BMI-z-score and to examine whether children's breakfast consumption mediates associations between family-related factors and children's BMI-z-score. Subjects: Ten-to twelve-year-old children (n = 6374; mean age = 11.6 +/- 0.7 years, 53.2% girls, mean BMI-z-score = 0.4 +/- 1.2) and one of their parents (n = 6374; mean age = 41.4 +/- 5.3 years, 82.7% female, mean BMI = 24.5 +/- 4.2 kg/m(2)) were recruited from schools in eight European countries (Belgium, Greece, Hungary, the Netherlands, Norway, Slovenia, Spain, and Switzerland). The children self-reported their breakfast frequency per …
Association between physical, psychological and social frailty and health-related quality of life among older people
2019
Abstract Background Studies on the association between frailty and health-related quality of life (HRQoL) are scarce and show contradictory results. This study aimed to evaluate the association between physical, psychological and social frailty and HRQoL among community-dwelling older people. Methods A cross-sectional study was performed with baseline data collected in 2015 from the Urban Health Centers Europe (UHCE) project in five European countries, the United Kingdom, Greece, Croatia, The Netherlands and Spain. A total of 2325 participants were included in the baseline measurements of the Urban Health Centers Europe project; 2167 participants (mean age = 79.7; SD=5.6) were included in t…
Reliability and Validity of the Tilburg Frailty Indicator in 5 European Countries
2020
OBJECTIVES: To assess the internal consistency, convergent and divergent validity, and concurrent validity of the Tilburg Frailty Indicator (TFI) within community-dwelling older people in Spain, Greece, Croatia, the Netherlands, and the United Kingdom.DESIGN: Cross-sectional study.SETTING: Primary care and community settings.PARTICIPANTS: In total, 2250 community-dwelling older people (60.3% women; mean age = 79.7 years; standard deviation = 5.7).METHODS: We assessed the reliability and validity of the full TFI as well as its physical, psychological, and social domains. Baseline data of the Urban Health Centers Europe project were used. The internal consistency was assessed with the Cronbac…