Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (14)

Search Parameters:
Keywords = OECD Codes

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
16 pages, 722 KB  
Article
From Desalination to Governance: A Comparative Study of Water Reuse Strategies in Southern European Hospitality
by Eleonora Santos
Sustainability 2025, 17(15), 6725; https://doi.org/10.3390/su17156725 - 24 Jul 2025
Viewed by 912
Abstract
As climate change intensified water scarcity in Southern Europe, tourism-dependent regions such as Portugal’s Algarve faced growing pressure to adapt their water management systems. This study investigated how hotel groups in the Algarve have adopted and communicated water reuse technologies—specifically desalination and greywater [...] Read more.
As climate change intensified water scarcity in Southern Europe, tourism-dependent regions such as Portugal’s Algarve faced growing pressure to adapt their water management systems. This study investigated how hotel groups in the Algarve have adopted and communicated water reuse technologies—specifically desalination and greywater recycling—under environmental, institutional, and reputational constraints. A comparative qualitative case study was conducted involving three hotel groups—Vila Vita Parc, Pestana Group, and Vila Galé—selected through purposive sampling based on organizational capacity and technology adoption stage. The analysis was supported by a supplementary mini-case from Mallorca, Spain. Publicly accessible documents, including sustainability reports, media coverage, and policy frameworks, were thematically coded using organizational environmental behavior theory and the OECD Principles on Water Governance. The results demonstrated that (1) higher organizational capacity was associated with greater maturity in water reuse implementation; (2) communication transparency increased alongside technological advancement; and (3) early-stage adopters encountered stronger financial, regulatory, and operational barriers. These findings culminated in the development of the Maturity–Communication–Governance (MCG) Framework, which elucidates how internal resources, stakeholder signaling, and institutional alignment influence sustainable infrastructure uptake. This research offered policy recommendations to scale water reuse in tourism through financial incentives, regulatory simplification, and public–private partnerships. The study contributed to the literature on sustainable tourism and decentralized climate adaptation, aligning with UN Sustainable Development Goals 6.4, 12.6, and 13. Full article
Show Figures

Figure 1

21 pages, 1451 KB  
Article
Analyzing Tractor Productivity and Efficiency Evolution: A Methodological and Parametric Assessment of the Impact of Variations in Propulsion System Design
by Ivan Herranz-Matey
Agriculture 2025, 15(15), 1577; https://doi.org/10.3390/agriculture15151577 - 23 Jul 2025
Cited by 1 | Viewed by 785
Abstract
This research aims to analyze the evolution of productivity and efficiency in tractors featuring varying propulsion system designs through the development of a parametric modeling approach. Recognizing that large row-crop tractors represent a significant capital investment—ranging from USD 0.4 to over 0.8 million [...] Read more.
This research aims to analyze the evolution of productivity and efficiency in tractors featuring varying propulsion system designs through the development of a parametric modeling approach. Recognizing that large row-crop tractors represent a significant capital investment—ranging from USD 0.4 to over 0.8 million for current-generation models—and that machinery costs constitute a substantial share of farm production expenses, this study addresses the urgent need for data-driven decision-making in agricultural enterprises. Utilizing consolidated OECD Code 2 tractor test data for all large row-crop John Deere tractors from the MFWD era to the latest generation, the study evaluates tractor performance across multiple productivity and efficiency indicators. The analysis culminates in the creation of a robust, user-friendly parametric model (R2 = 0.9337, RMSE = 1.0265), designed to assist stakeholders in making informed decisions regarding tractor replacement or upgrading. By enabling the optimization of productivity and efficiency while accounting for agronomic and timeliness constraints, this model supports sustainable and profitable management practices in modern agriculture. Full article
(This article belongs to the Section Agricultural Technology)
Show Figures

Figure 1

14 pages, 2223 KB  
Article
Assessing Safety Concerns in Omeprazole Use: An Observational Study of Potentially Inappropriate Prescriptions and Patient Adherence in a Spanish Community Pharmacy
by Franc Capdevila Finestres, Daida Alberto Armas, Antoni Miró Manzano, Verónica Hernández García, Yeray Sosa Alonso, Arturo Hardisson de la Torre and Carmen Rubio Armendáriz
Sci. Pharm. 2025, 93(1), 8; https://doi.org/10.3390/scipharm93010008 - 4 Feb 2025
Viewed by 4969
Abstract
Introduction: Omeprazole is commonly prescribed for conditions associated with excess gastric acid, including gastroesophageal reflux and Helicobacter pylori infection. Spain ranks highest among Organization for Economic Co-operation and Development (OECD) countries in omeprazole consumption (measured in doses per 1000 inhabitants per day, DHD), [...] Read more.
Introduction: Omeprazole is commonly prescribed for conditions associated with excess gastric acid, including gastroesophageal reflux and Helicobacter pylori infection. Spain ranks highest among Organization for Economic Co-operation and Development (OECD) countries in omeprazole consumption (measured in doses per 1000 inhabitants per day, DHD), indicating potential overuse and misuse. Community pharmacists are pivotal in collaborating with healthcare professionals to address safety risks and improve patient outcomes. Objective: This study aims to profile omeprazole users to inform pharmaceutical care (PC) strategies that address patient-specific needs and improve treatment safety. Methods: We conducted an observational, cross-sectional study (CEIm Code FCF-OME-2023-01) involving 100 omeprazole users at a community pharmacy in Barcelona from November 2023 to May 2024. Data were collected via clinical interviews using a Data Collection Questionnaire. Results: Among the omeprazole users, 49% were male, 51% female, and 56% were over the age of 65. A significant proportion (71%) exhibited long-term omeprazole use, and 30% were polymedicated (taking five or more medications). Notably, 52% of patients reported no history of gastric symptoms. Additionally, 22% reported using omeprazole occasionally, following short-term, on-demand treatment regimens, while 78% adhered to a chronic daily dosing schedule. Among these patients, 29.5% demonstrated poor treatment adherence. The analysis of medication-related problems (MRPs) among the 78 patients using omeprazole daily and chronically revealed that the most prevalent MRPs were “unnecessary medication”, “lack of adherence”, “wrong administration”, “drug interactions”, and “lack of knowledge regarding medication use”. Based on STOPP criteria, 45% of users were candidates for deprescribing or dose adjustment. Conclusions: The high incidence of MRPs among omeprazole users highlights the need for enhanced pharmaceutical care (PC). Proactive pharmacist interventions, including deprescribing, dose adjustments, and prescriber collaboration, can reduce adverse medication outcomes and promote safer omeprazole use. Full article
Show Figures

Figure 1

20 pages, 465 KB  
Article
The Moderating Effects of Corporate Social Responsibility on Corporate Financial Performance: Evidence from OECD Countries
by Hawkar Anwer Hamad and Kemal Cek
Sustainability 2023, 15(11), 8901; https://doi.org/10.3390/su15118901 - 31 May 2023
Cited by 15 | Viewed by 7526
Abstract
This study aims to investigate the nature and intensity of the changes in corporate financial performance due to the corporate social responsibility (CSR) disclosures as a result of certain relationships between corporate governance and company performance in the non-financial sector. This study selected [...] Read more.
This study aims to investigate the nature and intensity of the changes in corporate financial performance due to the corporate social responsibility (CSR) disclosures as a result of certain relationships between corporate governance and company performance in the non-financial sector. This study selected 625 non-financial companies across six organizations for economic cooperations (OECD) countries’ stock markets for the period of 10 years (2012–2021). For this qualitative study, corporate governance, financial performance, and corporate social responsibility score data were collected from the DataStream, a reliable database for examining the research on OECD countries’ listed companies. For the data analysis we applied various statistical tools such as regression analysis and moderation analysis. The findings of the study show that all attributes of the corporate governance mechanism, except for audit board attendance, have significant positive impacts on financial performance indicators for all the selected OECD economies except the country France. France’s code of corporate governance has a significant negative impact on return on asset (ROA) and return on equity (ROE) due to differences in cultural and operational norms of the country. The audit board attendance has no significant impact on ROA. Moreover, all the attributes except board size (BSIZ) have significant positive impacts on the earnings per share (EPS) in Spain, The United Kingdom (UK) and Belgium. The values obtained from the moderation effect show that Corporate social responsibility is the key factor in motivating corporate governance practices which eventually improves corporate financial performance. However, this study advocated the implications, Investors and stakeholders should consider both corporate governance and CSR disclosures when making investment decisions. Companies that prioritize both governance and CSR tend to have better financial performance and are more likely to mitigate risks. Moreover, the policy makers can improve the code of corporate governance in order to attain sustainable development in the stock market. Full article
(This article belongs to the Special Issue Corporate Governance for Sustainable Finance)
Show Figures

Figure 1

17 pages, 1069 KB  
Article
‘COVID Is Coming, and I’m Bloody Scared’: How Adults with Co-Morbidities’ Threat Perceptions of COVID-19 Shape Their Vaccination Decisions
by Leah Roberts, Michael J. Deml and Katie Attwell
Int. J. Environ. Res. Public Health 2023, 20(4), 2953; https://doi.org/10.3390/ijerph20042953 - 8 Feb 2023
Cited by 4 | Viewed by 2973
Abstract
Adults with comorbidities have faced a high risk from COVID-19 infection. However, Western Australia experienced relatively few infections and deaths from 2020 until early 2022 compared with other OECD countries, as hard border policies allowed for wide-scale vaccination before mass infections began. This [...] Read more.
Adults with comorbidities have faced a high risk from COVID-19 infection. However, Western Australia experienced relatively few infections and deaths from 2020 until early 2022 compared with other OECD countries, as hard border policies allowed for wide-scale vaccination before mass infections began. This research investigated the thoughts, feelings, risk perceptions, and practices of Western Australian adults with comorbidities aged 18–60 years in regard to COVID-19 disease and COVID-19 vaccines. We conducted 14 in-depth qualitative interviews between January and April 2022, just as the disease was starting to circulate. We coded results inductively and deductively, combining the Extended Parallel Process Model (EPPM) and vaccine belief models. Non-hesitant participants believed COVID-19 vaccines were safe and effective at mitigating COVID-19′s threat and subsequently got vaccinated. Vaccine hesitant participants were less convinced the disease was severe or that they were susceptible to it; they also did not consider the vaccines to be sufficiently safe. Yet, for some hesitant participants, the exogenous force of mandates prompted vaccination. This work is important to understand how people’s thoughts and feelings about their comorbidities and risks from COVID-19 influence vaccine uptake and how mandatory policies can affect uptake in this cohort. Full article
(This article belongs to the Section Toxicology and Public Health)
Show Figures

Figure 1

1 pages, 167 KB  
Abstract
Food Advertising to Children in New Zealand: A Critical Review of the Performance of a Self-Regulatory Complaints System Using a Public Health Law Framework
by Fiona Sing, Sally Mackay, Angela Culpin, Sally Hughes and Boyd Swinburn
Med. Sci. Forum 2022, 9(1), 50; https://doi.org/10.3390/msf2022009050 - 20 Jun 2022
Viewed by 1205
Abstract
New Zealand has the second highest overweight and obese child population in the Organization for Economic Co-operation and Development (OECD). This paper evaluates whether New Zealand’s self-regulatory controls on the advertising of unhealthy food and beverages to children and young people adequately protects [...] Read more.
New Zealand has the second highest overweight and obese child population in the Organization for Economic Co-operation and Development (OECD). This paper evaluates whether New Zealand’s self-regulatory controls on the advertising of unhealthy food and beverages to children and young people adequately protects children from the exposure to, and power of, such marketing, in order to limit its impact on children’s food and beverage preferences. First, an analysis of the relevant New Zealand Advertising Standards Authority (ASA) Codes was conducted, including the ASA Complaints Board and Appeals Board decisions from 2017–2019 to determine the application of the Codes in practice. Second, a public health law framework was applied to the self-regulatory system. Of the 16 complaints assessed, 12 were not upheld, and only one was upheld under the Children and Young People’s Advertising Code (CYPA Code). Three complaints were upheld under the Advertising Standards Code (ASC) but not the CYPA Code. An analysis of the Codes and their interpretation by the Complaints Board found that many facets of the public health law framework were not met. The self-regulatory system does not adequately protect children from the exposure to, and power of, unhealthy food and beverage marketing, and government-led, comprehensive, and enforceable marketing restrictions are required. Full article
26 pages, 2739 KB  
Review
Corium Experimental Thermodynamics: A Review and Some Perspectives
by Marc Barrachin
Thermo 2021, 1(2), 179-204; https://doi.org/10.3390/thermo1020013 - 11 Aug 2021
Cited by 7 | Viewed by 6882
Abstract
More than 30 years ago a specialist meeting was held at Joint Research Center Ispra (Italy) from 15 to 17 January 1990 to review the current understanding of chemistry during severe accidents in light water reactors (LWR). Let us consider that, at the [...] Read more.
More than 30 years ago a specialist meeting was held at Joint Research Center Ispra (Italy) from 15 to 17 January 1990 to review the current understanding of chemistry during severe accidents in light water reactors (LWR). Let us consider that, at the end of the 1980s, thermodynamics introduced in the severe accident codes was really poor. Only some equilibrium constants for a few simple reactions between stoichiometric compounds were used as well as some simple correlations giving estimates of solidus and liquidus temperatures. In the same time, the CALPHAD method was developed and was full of promise to approximate the thermodynamic properties of a complex thermochemical system by the way of a critical assessment of experimental data, a definition of a simple physical model and an optimisation procedure to define the values of the model parameters. It was evident that a nuclear thermodynamic database had to be developed with that new technique to obtain quite rapidly prominent progress in the knowledge of thermochemistry in the severe accident research area. Discussions focused on the important chemical phenomena that could occur across the wide range of conditions of a damaged nuclear plant. The most pressing need for improved chemical models is identified with condensed phase mixtures to model the corium progression. This paper reviews more than 30 years of experimental data production in the field of corium thermodynamics. This work has been conducted through multiple international programs (EURATOM, ISTC, OECD) as well as through more specific studies conducted at the national scale. This research has been capitalised in specific databases such as NUCLEA and TAF-ID, databases developed at IRSN and at CEA, respectively, and are now used in degradation models of the severe accident simulation codes. This research is presented in this paper. In the conclusion, we outline the research perspectives that need to be considered in order to address today’s and tomorrow’s issues. Full article
(This article belongs to the Special Issue Thermodynamics and Nuclear Materials)
Show Figures

Figure 1

12 pages, 813 KB  
Article
Impact of Updated OECD/NEA Thermodynamic Database on the Safety Assessment of Radioactive Waste Repository Studied Using RESRAD-OFFSITE Code
by Jun-Yeop Lee, Sang June Park and Seokyoung Ahn
Appl. Sci. 2021, 11(16), 7269; https://doi.org/10.3390/app11167269 - 6 Aug 2021
Cited by 1 | Viewed by 2312
Abstract
A RESRAD-OFFISTE computational code for the safety assessment model of a radioactive waste repository was utilized to evaluate the influence of the updated OECD/NEA thermodynamic database on the safety assessment model in terms of exposure dose. The solubility data as the input parameter [...] Read more.
A RESRAD-OFFISTE computational code for the safety assessment model of a radioactive waste repository was utilized to evaluate the influence of the updated OECD/NEA thermodynamic database on the safety assessment model in terms of exposure dose. The solubility data as the input parameter for the RESRAD-OFFSITE code obtained with two different sets of chemical thermodynamic databases such as JAEA-TDB and amended JAEA-TDB reflecting the updates of the OECD/NEA thermodynamic database were calculated and compared with each other. As a result, almost identical exposure doses were obtained due to the remarkable similarity between the solubility data of various radionuclides for both chemical thermodynamic databases. In contrast, dramatic changes in exposure dose were observed with varying distribution coefficients. Thermodynamic calculations indicated that the aqueous species distribution can be significantly changed by the selection of a chemical thermodynamic database and thus the relevant distribution coefficient can also be influenced as a consequence. Accordingly, the result obtained in the present work indicated that (i) the impact of the updated chemical thermodynamic data was somewhat minor from the viewpoint of the solubility and (ii) the distribution coefficient, which can be sensitively influenced by the predominant chemical species, produced a remarkable change in the exposure dose. This work provided an insight into the precise exposure dose calculation in terms of the reliable estimation of the distribution coefficient by means of a surface complexation model, which can predict the distribution coefficient as a function of groundwater composition coupled with a chemical speciation calculation based on up to date chemical thermodynamic data. Full article
(This article belongs to the Special Issue Nuclear Wastes Management)
Show Figures

Figure 1

20 pages, 7012 KB  
Article
Retrofitting Agricultural Self-Propelled Machines with Roll-Over and Tip-Over Protective Structures
by Leonardo Vita, Davide Gattamelata and Domenico Pessina
Safety 2021, 7(2), 46; https://doi.org/10.3390/safety7020046 - 4 Jun 2021
Cited by 10 | Viewed by 7758
Abstract
In the agricultural sector, the loss of stability related to the use of self-propelled agricultural machinery (SPAM) has caused and continues to cause accidents, often with fatal outcomes. The probability of occurrence of this risk can be reduced by acting on various aspects, [...] Read more.
In the agricultural sector, the loss of stability related to the use of self-propelled agricultural machinery (SPAM) has caused and continues to cause accidents, often with fatal outcomes. The probability of occurrence of this risk can be reduced by acting on various aspects, but above all the presence of a protective structure is necessary. Depending on the machine, the protective structure can be a roll-over protective structure (ROPS), or a tip-over protective structure (TOPS). Hence, to reduce this gap, a reverse engineering approach and virtual engineering methods were applied starting from the analysis of harmonized standards actually in force, with the goal of providing both a reference procedure to be used in the risk assessment analysis of SPAM’s protective structures and technical information to manufacture and install protective structure on old agricultural machinery. Two representative case studies were used to validate the procedure by means of finite element method (FEM) analyses and computer aided design (CAD) prototyping. Results show that the proposed approach can represent a useful indication for the safety update of this type of machinery. Full article
Show Figures

Figure 1

13 pages, 6158 KB  
Article
Innovations in Multi-Physics Methods Development, Validation, and Uncertainty Quantification
by Maria Avramova, Agustin Abarca, Jason Hou and Kostadin Ivanov
J. Nucl. Eng. 2021, 2(1), 44-56; https://doi.org/10.3390/jne2010005 - 7 Mar 2021
Cited by 22 | Viewed by 4787
Abstract
This paper provides a review of current and upcoming innovations in development, validation, and uncertainty quantification of nuclear reactor multi-physics simulation methods. Multi-physics modelling and simulations (M&S) provide more accurate and realistic predictions of the nuclear reactors behavior including local safety parameters. Multi-physics [...] Read more.
This paper provides a review of current and upcoming innovations in development, validation, and uncertainty quantification of nuclear reactor multi-physics simulation methods. Multi-physics modelling and simulations (M&S) provide more accurate and realistic predictions of the nuclear reactors behavior including local safety parameters. Multi-physics M&S tools can be subdivided in two groups: traditional multi-physics M&S on assembly/channel spatial scale (currently used in industry and regulation), and novel high-fidelity multi-physics M&S on pin (sub-pin)/sub-channel spatial scale. The current trends in reactor design and safety analysis are towards further development, verification, and validation of multi-physics multi-scale M&S combined with uncertainty quantification and propagation. Approaches currently applied for validation of the traditional multi-physics M&S are summarized and illustrated using established Nuclear Energy Agency/Organization for Economic Cooperation and Development (NEA/OECD) multi-physics benchmarks. Novel high-fidelity multi-physics M&S allow for insights crucial to resolve industry challenge and high impact problems previously impossible with the traditional tools. Challenges in validation of novel multi-physics M&S are discussed along with the needs for developing validation benchmarks based on experimental data. Due to their complexity, the novel multi-physics codes are still computationally expensive for routine applications. This fact motivates the use of high-fidelity novel models and codes to inform the low-fidelity traditional models and codes, leading to improved traditional multi-physics M&S. The uncertainty quantification and propagation across different scales (multi-scale) and multi-physics phenomena are demonstrated using the OECD/NEA Light Water Reactor Uncertainty Analysis in Modelling benchmark framework. Finally, the increasing role of data science and analytics techniques in development and validation of multi-physics M&S is summarized. Full article
(This article belongs to the Special Issue Selected Papers from PHYSOR 2020)
Show Figures

Figure 1

15 pages, 278 KB  
Article
Food Advertising to Children in New Zealand: A Critical Review of the Performance of a Self-Regulatory Complaints System Using a Public Health Law Framework
by Fiona Sing, Sally Mackay, Angela Culpin, Sally Hughes and Boyd Swinburn
Nutrients 2020, 12(5), 1278; https://doi.org/10.3390/nu12051278 - 30 Apr 2020
Cited by 24 | Viewed by 8469
Abstract
New Zealand has the second highest overweight and obese child population in the Organisation for Economic Co-operation and Development (OECD). This paper evaluates whether New Zealand’s self-regulatory controls on the advertising of unhealthy food and beverages to children and young people adequately protects [...] Read more.
New Zealand has the second highest overweight and obese child population in the Organisation for Economic Co-operation and Development (OECD). This paper evaluates whether New Zealand’s self-regulatory controls on the advertising of unhealthy food and beverages to children and young people adequately protects children from the exposure to, and power of, such marketing in order to limit its impact on children’s food and beverage preferences. First, an analysis of the relevant New Zealand Advertising Standards Authority (ASA) Codes was conducted, including the ASA Complaints Board and Appeals Board decisions from 2017–2019 to determine the application of the Codes in practice. Second, a public health law framework was applied to the self-regulatory system. Of the 16 complaints assessed, 12 were not upheld, and only one was upheld under the Children and Young People’s Advertising Code (CYPA Code). Three complaints were upheld under the Advertising Standards Code (ASC) but not the CYPA Code. An analysis of the Codes and their interpretation by the Complaints Board found that many facets of the public health law framework were not met. The self-regulatory system does not adequately protect children from the exposure to, and power of, unhealthy food and beverage marketing, and government-led, comprehensive, and enforceable marketing restrictions are required. Full article
(This article belongs to the Special Issue Food Marketing and Dietary Behaviors among Children)
13 pages, 914 KB  
Article
Investigating Some Construct Validity Threats to TALIS 2018 Teacher Job Satisfaction Scale: Implications for Social Science Researchers and Practitioners
by Yusuf F. Zakariya
Soc. Sci. 2020, 9(4), 38; https://doi.org/10.3390/socsci9040038 - 1 Apr 2020
Cited by 22 | Viewed by 6439
Abstract
The credibility of findings ensuing from cross-sectional survey research depends largely on the validity and reliability of the research instruments. Critical attention to the quality of such instruments will ensure logical and valid results. The purpose of this article is to provide evidence [...] Read more.
The credibility of findings ensuing from cross-sectional survey research depends largely on the validity and reliability of the research instruments. Critical attention to the quality of such instruments will ensure logical and valid results. The purpose of this article is to provide evidence for two methodological issues observed that are potential threats to construct validity of widely used Teaching and Learning International Survey (TALIS) 2018 data on teacher job satisfaction scale (TJSS). The first issue concerns reverse recoding of some items necessary to obtain a coherence covariance between these items and other items on the same subscale. The second issue concerns the addition of item cross-loading necessary to improve the fit of the TJSS. Both conceptual and empirical arguments are provided in the current article to substantiate these observations. A series of structural equation modeling tests are evaluated to assess the measurement model of the TJSS across 27 randomly selected countries/economies that participated in the survey. The results reveal gross misspecifications in the measurement model if these issues are not addressed. An alternative two-factor structure with an item cross-loading is proposed and evaluated for TJSS and found acceptable across the countries/economies. Some implications of findings for methodologists and practitioners are presented. Full article
Show Figures

Figure 1

15 pages, 1039 KB  
Article
Incidence of a Non-Sustainability Use of Technology on Students’ Reading Performance in Pisa
by Esteban Vázquez-Cano, José Gómez-Galán, Alfonso Infante-Moro and Eloy López-Meneses
Sustainability 2020, 12(2), 749; https://doi.org/10.3390/su12020749 - 20 Jan 2020
Cited by 58 | Viewed by 7869
Abstract
This article describes an investigation that made a comparative analysis of the influence of the use of technology for non-academic activities on the reading performance of students in 21 countries within the Organisation for Economic Co-operation and Development (OECD), as measured by the [...] Read more.
This article describes an investigation that made a comparative analysis of the influence of the use of technology for non-academic activities on the reading performance of students in 21 countries within the Organisation for Economic Co-operation and Development (OECD), as measured by the Program for International Student Assessment (PISA). To do this, we coded the SumIC001-008-010 variables (“Devices available at home” and “How often do you use digital devices for the following activities outside school”) in the PISA survey and quantified the effect by the proportion of variance explained of each variable in the model for each country. The results show that the reading score increases according to the variable for type and quantity of devices at home but falls drastically in all 21 countries when the “SumIC001” variable exceeds 15 points. Our research also found that the two activities that most negatively impacted reading performance if done on a regular basis were “playing online games via social networks” and “uploading your own created contents.” These results would seem to confirm that the non-sustainability and prolonged use of technology outside school is objectively negative for the development of reading competence in young people. Full article
Show Figures

Figure 1

8 pages, 3745 KB  
Article
The Limitations of an Air-Oxidation Breakaway Model to Predict a Zirconium Fire in a Spent Nuclear Fuel Pool Accident
by Sanggil Park and Min Bum Park
Sustainability 2019, 11(22), 6364; https://doi.org/10.3390/su11226364 - 13 Nov 2019
Cited by 1 | Viewed by 2378
Abstract
The OECD/NEA Spent Fuel Pool (SFP) project was conducted to investigate consequences of spent nuclear fuel pool accident scenarios. From the project, it was observed that cladding temperature could abruptly increase at a certain point and the cladding was completely oxidized. This phenomenon [...] Read more.
The OECD/NEA Spent Fuel Pool (SFP) project was conducted to investigate consequences of spent nuclear fuel pool accident scenarios. From the project, it was observed that cladding temperature could abruptly increase at a certain point and the cladding was completely oxidized. This phenomenon was called a “zirconium fire”. This zirconium fire is one of the crucial concerns for spent fuel pool safety under a postulated loss of coolant accident scenario, since it would lead to an uncontrolled mass release of fission products into the environment. To capture this critical phenomenon, an air-oxidation breakaway model has been implemented in the MELCOR code. This study examines this air-oxidation breakaway model by comparing the SFP project test data with a series of MELCOR code sensitivity calculation results. The air-oxidation model parameters are slightly altered to investigate their sensitivities on the occurrence of the zirconium fire. Through such sensitivity analysis, limitations of the air-oxidation breakaway model are identified, and needs for model improvement is recommended. Full article
(This article belongs to the Section Energy Sustainability)
Show Figures

Figure 1

Back to TopTop