scholarly journals Effect of Fiber Stripes of COVID-19 Healthy Personal Materials On Durability, And Physicomechanical Characteristic of Concrete For Decorative Landscape Pavements And Artificial Rocks

2021 ◽  
Author(s):  
Ahmed Abd El aal
Keyword(s):  
Physicomechanical Characteristic ◽  
Personal Protection ◽  
Water Penetration ◽  
Global Epidemic ◽  
Physicomechanical Characteristics ◽  
Surgical Masks ◽  
Transfer Capability ◽  
Single Use ◽  
Overall Performance ◽  
The Impact

Abstract This research presents a new method for determining the impact of healthy personal protection materials HPPM stripes, such as surgical masks, protective suits, overhead and safety foot shoes, on the durability, physicomechanical characteristics of concrete for use in architectural forms. As a result of the current global epidemic caused by Coronavirus, the use of (HPPM) such as surgical masks, protective suits, overhead and safety foot shoes has increased considerably (COVID-19). COVID-19's second and third waves are currently affecting various countries, necessitating the use of face masks (FM). As a result, millions of single FS have been discharged into the wild, washing up on beaches, floating beneath the seas, and winding up in hazardous locations. The effect of stripes fibers on physicomechanical aspects of concrete, such as workability, UCS, FS, IMs, spalling, and AbR; sorptivity, Sw; n; water penetration, permeability, and economic and eco-friendly aspects, was also discussed. With a focus on HPPM especially single-use face masks, this research investigates an innovative way for incorporating pandemic waste into concrete structures. SEM and XRD were also employed to analyze microstructures and the interfacial transition zone, as well as to identify the elements. HPPM was found to have a pore-blocking effect, which reduced permeability and capillary porosity. It was also discovered that the best concentrations of HPPM, particularly masks, were applied by volume at 0 %, 0.1, 1.5, 2.0, and 2.5 %. The usage of single-use face masks increased the strength qualities and overall performance of the concrete samples. The tendency of growing strength began to disappear around 2%. The results of this investigation show that stripe content has no effect on compressive strength. The stripe, on the other hand, is critical in determining the flexural strength of concrete. A SEM was used to analyze the microstructure of concrete. HPPM fibers are discovered to act as bridges across cracks, enhancing the matrixes transfer capability. From a technological and environmental standpoint, the study found that using healthy personal protection materials fiber in the production of concrete is viable.

scholarly journals Extended use or reuse of single-use surgical masks and filtering face-piece respirators during the coronavirus disease 2019 (COVID-19) pandemic: A rapid systematic review

2020 ◽  
Vol 42 (1) ◽  
pp. 75-83 ◽  
Author(s):  
Elaine C. Toomey ◽  
Yvonne Conway ◽  
Chris Burton ◽  
Simon Smith ◽  
Michael Smalle ◽  
...  
Keyword(s):  
Systematic Review ◽  
Systematic Reviews ◽  
Data Extraction ◽  
Evidence Base ◽  
World Health ◽  
Healthcare Organizations ◽  
Surgical Masks ◽  
Single Use ◽  
Current Guidance ◽  
The Impact

AbstractBackground:Shortages of personal protective equipment during the coronavirus disease 2019 (COVID-19) pandemic have led to the extended use or reuse of single-use respirators and surgical masks by frontline healthcare workers. The evidence base underpinning such practices warrants examination.Objectives:To synthesize current guidance and systematic review evidence on extended use, reuse, or reprocessing of single-use surgical masks or filtering face-piece respirators.Data sources:We used the World Health Organization, the European Centre for Disease Prevention and Control, the US Centers for Disease Control and Prevention, and Public Health England websites to identify guidance. We used Medline, PubMed, Epistemonikos, Cochrane Database, and preprint servers for systematic reviews.Methods:Two reviewers conducted screening and data extraction. The quality of included systematic reviews was appraised using AMSTAR-2. Findings were narratively synthesized.Results:In total, 6 guidance documents were identified. Levels of detail and consistency across documents varied. They included 4 high-quality systematic reviews: 3 focused on reprocessing (decontamination) of N95 respirators and 1 focused on reprocessing of surgical masks. Vaporized hydrogen peroxide and ultraviolet germicidal irradiation were highlighted as the most promising reprocessing methods, but evidence on the relative efficacy and safety of different methods was limited. We found no well-established methods for reprocessing respirators at scale.Conclusions:Evidence on the impact of extended use and reuse of surgical masks and respirators is limited, and gaps and inconsistencies exist in current guidance. Where extended use or reuse is being practiced, healthcare organizations should ensure that policies and systems are in place to ensure these practices are carried out safely and in line with available guidance.

scholarly journals Extended use or re-use of single-use surgical masks and filtering facepiece respirators: A rapid evidence review

2020 ◽  
Author(s):  
Elaine Toomey ◽  
Yvonne Conway ◽  
Christopher Burton ◽  
Simon Smith ◽  
Michael Smalle ◽  
...  
Keyword(s):  
Systematic Reviews ◽  
Data Extraction ◽  
Evidence Base ◽  
Open Science ◽  
World Health ◽  
Limited Evidence ◽  
Surgical Masks ◽  
Guidance Documents ◽  
Single Use ◽  
The Impact

Background The COVID-19 pandemic has led to unprecedented demand for personal protective equipment. Shortages of surgical masks and filtering facepiece respirators has led to the extended use or re-use of single-use respirators and surgical masks by frontline healthcare workers. The evidence base underpinning such practices has been questioned. Objectives To summarise guidance and synthesise systematic review evidence on extended use, re-use or reprocessing of single-use surgical masks or filtering facepiece respirators. Methods A targeted search of the World Health Organization, European Centre for Disease Prevention and Control, the US Centers for Disease Control and Prevention, and Public Health England websites was conducted to identify guidance. Four databases (Medline, Pubmed, Epistemonikos, Cochrane Database of Systematic Reviews) and three preprint repositories (Litcovid, MedRxiv and Open Science Framework) were searched for relevant systematic reviews. Record screening and data extraction was conducted by two reviewers. Quality of included systematic reviews was appraised using the AMSTAR-2 checklist. Findings were integrated and narratively synthesised to highlight the extent to which key claims in guidance documents were supported by research evidence. Results Six guidance documents were identified. All note that extended use or re-use of single-use surgical masks and respirators (with or without reprocessing) should be considered only in situations of critical shortage. Extended use was generally favoured over re-use because of reduced risk of contact transmission. Four high-quality systematic reviews were included: three focused on reprocessing (decontamination) of N95 respirators and one focused on reprocessing of surgical masks. There was limited evidence on the impact of extended use on masks and respirators. Vaporised hydrogen peroxide and ultraviolet germicidal irradiation were highlighted as the most promising reprocessing methods, but evidence on the relative efficacy and safety of different methods was limited. We found no well-established methods for reprocessing respirators at scale. Conclusions: There is limited evidence on the impact of extended use and re-use of surgical masks and respirators. Where extended use or re-use is being practiced, healthcare organisations should ensure that policies and systems are in place to ensure these practices are carried out safely and in line with available guidance.

RESEARCH: Dry Heat Processing of Single-Use Respirators and Surgical Masks

2020 ◽  
Vol 54 (6) ◽  
pp. 410-416
Author(s):  
Joyce M. Hansen ◽  
Scott Weiss ◽  
Terra A. Kremer ◽  
Myrelis Aguilar ◽  
Gerald McDonnell
Keyword(s):  
Microbial Contamination ◽  
Healthcare Providers ◽  
High Volume ◽  
Airborne Particles ◽  
Heat Processing ◽  
Protective Equipment ◽  
Healthcare Facilities ◽  
Dry Heat ◽  
Surgical Masks ◽  
Single Use

The COVID-19 pandemic, caused by severe acute respiratory syndrome coronavirus 2, has challenged healthcare providers in maintaining the supply of critical personal protective equipment, including single-use respirators and surgical masks. Single-use respirators and surgical masks can reduce risks from the inhalation of airborne particles and microbial contamination. The recent high-volume demand for single-use respirators and surgical masks has resulted in many healthcare facilities considering processing to address critical shortages. The dry heat process of 80°C (176°F) for two hours (120 min) has been confirmed to be an appropriate method for single-use respirator and surgical mask processing.

Novel Coronavirus 2019 Outbreak: A Global Epidemic

2020 ◽  
Vol 17 (12) ◽  
pp. 1458-1464
Author(s):  
Sweta Kamboj ◽  
Rohit Kamboj ◽  
Shikha Kamboj ◽  
Kumar Guarve ◽  
Rohit Dutt
Keyword(s):  
World Health ◽  
Upper Respiratory Tract ◽  
Global Epidemic ◽  
The Public ◽  
The Government ◽  
Tract Disease ◽  
The 1960S ◽  
Novel Coronavirus ◽  
Health Organization ◽  
The Impact

Background: In the 1960s, the human coronavirus was designated, which is responsible for the upper respiratory tract disease in children. Back in 2003, mainly 5 new coronaviruses were recognized. This study directly pursues to govern knowledge, attitude and practice of viral and droplet infection isolation safeguard among the researchers during the outbreak of the COVID-19. Introduction: Coronavirus is a proteinaceous and infectious pathogen. It is an etiological agent of severe acute respiratory syndrome (SARS) and the Middle East respiratory syndrome (MERS). Coronavirus, appeared in China from the seafood and poultry market last year, which has spread in various countries, and has caused several deaths. Methods: The literature data has been taken from different search platforms like PubMed, Science Direct, Embase, Web of Science, who.int portal and complied. Results: Corona virology study will be more advanced and outstanding in recent years. COVID-19 epidemic is a threatening reminder not solely for one country but all over the universe. Conclusion: In this review article, we encapsulated the pathogenesis, geographical spread of coronavirus worldwide, also discussed the perspective of diagnosis, effective treatment, and primary recommendations by the World Health Organization, and guidelines of the government to slow down the impact of the virus are also optimistic, efficacious and obliging for the public health. However, it will take a prolonged time in the future to overcome this epidemic.

The Impact of Bar Service Operation Practices on Organizational Performance in Indian Hotel Industry

2015 ◽  
Vol 8 (1) ◽  
Author(s):  
Mohinder C. Dhiman ◽  
Abhishek Ghai
Keyword(s):  
Organizational Performance ◽  
Hotel Industry ◽  
Demographic Variables ◽  
Study Results ◽  
Service Operation ◽  
Managerial Implications ◽  
Overall Performance ◽  
The Impact ◽  
The Relationship ◽  
Bivariate Test

The paper has a two fold purpose - examine the impact of bar service operation practices (BSOP) on organizational performance (OP) and study the relationship between organizational performance and demographic variables. Based on a survey of 362 bar managers perceptions on the impact of bar service operation practices on organizational performance were assessed by 59 practices and 6 demographic variables. Bivariate test and ANOVA were employed to test the working hypothesis in the study. Results indicated that there is a positive relationship between the bar service operation practices and organizational performance. Further, the results indicate some practical and managerial implications to improve organizational overall performance.

scholarly journals Impact of Dataset Size on Classification Performance: An Empirical Evaluation in the Medical Domain

2021 ◽  
Vol 11 (2) ◽  
pp. 796
Author(s):  
Alhanoof Althnian ◽  
Duaa AlSaeed ◽  
Heyam Al-Baity ◽  
Amani Samha ◽  
Alanoud Bin Dris ◽  
...  
Keyword(s):  
Empirical Evaluation ◽  
Classification Performance ◽  
Support Vector ◽  
Robust Model ◽  
Original Distribution ◽  
C4.5 Decision Tree ◽  
Dataset Size ◽  
Overall Performance ◽  
Medical Domain ◽  
The Impact

Dataset size is considered a major concern in the medical domain, where lack of data is a common occurrence. This study aims to investigate the impact of dataset size on the overall performance of supervised classification models. We examined the performance of six widely-used models in the medical field, including support vector machine (SVM), neural networks (NN), C4.5 decision tree (DT), random forest (RF), adaboost (AB), and naïve Bayes (NB) on eighteen small medical UCI datasets. We further implemented three dataset size reduction scenarios on two large datasets and analyze the performance of the models when trained on each resulting dataset with respect to accuracy, precision, recall, f-score, specificity, and area under the ROC curve (AUC). Our results indicated that the overall performance of classifiers depend on how much a dataset represents the original distribution rather than its size. Moreover, we found that the most robust model for limited medical data is AB and NB, followed by SVM, and then RF and NN, while the least robust model is DT. Furthermore, an interesting observation is that a robust machine learning model to limited dataset does not necessary imply that it provides the best performance compared to other models.

scholarly journals The role of infant nutrition in the global epidemic of non-communicable disease

2016 ◽  
Vol 75 (2) ◽  
pp. 162-168 ◽  
Author(s):  
Atul Singhal
Keyword(s):  
Early Life ◽  
Infant Nutrition ◽  
Communicable Disease ◽  
Bottle Feeding ◽  
Postnatal Life ◽  
World Region ◽  
Global Epidemic ◽  
Main Determinants ◽  
The Impact

Non-communicable diseases (NCD) and atherosclerotic CVD in particular, are the most important health problems of the 21st century. Already in every world region except Africa, NCD account for greater mortality than communicable, maternal, perinatal and nutritional conditions combined. Although modifiable lifestyle factors in adults are the main determinants, substantial evidence now suggests that factors in early life also have a major role in the development of NCD; commonly referred to as the Developmental Origins of Health and Disease hypothesis. Factors in utero, early postnatal life and throughout childhood, have been shown to affect NCD by influencing risk factors for CVD such as obesity, diabetes, hypertension and dyslipidaemia. Infant nutrition (e.g. breastfeeding rather than bottle feeding) and a slower pattern of infant weight gain have been shown to be particularly protective against later risk of obesity and CVD in both low- and high-income countries. The mechanisms involved are poorly understood, but include epigenetic changes; effects on endocrine systems regulating body weight, food intake and fat deposition; and changes in appetite regulation. As a consequence, strategies to optimise early life nutrition could make a major contribution to stemming the current global epidemic of NCD. This review will consider the role of early life factors in the development of NCD, focusing on the impact of infant nutrition/growth on obesity and CVD. The review will highlight the experimental (randomised) evidence where available, briefly summarise the underlying mechanisms involved and consider the implications for public health.

The impact of counterfeit risk management on healthcare supply chain performance: an empirical analysis

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mauro Falasca ◽  
Scott Dellana ◽  
William J. Rowe ◽  
John F. Kros
Keyword(s):  
Risk Management ◽  
Supply Chain ◽  
The United States ◽  
Equation Modeling ◽  
Significant Positive Effect ◽  
Healthcare Organizations ◽  
Content Type ◽  
Overall Performance ◽  
The Impact ◽  
Positive Effect

PurposeThis study develops and tests a model exploring the relationship between supply chain (SC) counterfeit risk management and performance in the healthcare supply chain (HCSC).Design/methodology/approachIn the proposed theoretical model, HCSC counterfeit risk management is characterized by HCSC counterfeit risk orientation (HCRO), HCSC counterfeit risk mitigation (HCRM) and HCSC risk management integration (HRMI), while performance is represented by healthcare logistics performance (HLP) and healthcare organization overall performance (HOP). Partial least squares structural equation modeling (PLS-SEM) and survey data from 55 HCSC managers are used to test the research hypotheses.FindingsHCRO has a significant positive effect on HCRM, while HCRM has a positive impact on HRMI. With respect to HLP, HCRM has a nonsignificant effect, while HRMI has a significant impact, thus confirming the important mediating role of HRMI. Finally, HLP has a significant positive effect on the overall performance of healthcare organizations.Research limitations/implicationsAll study participants were from the United States, limiting the generalizability of the study findings to different countries or regions. The sample size employed in the study did not allow the authors to distinguish among the different types of healthcare organizations.Originality/valueThis study delineates between a healthcare organization's philosophy toward counterfeiting risks vs actions taken to eliminate or reduce the impact of counterfeiting on the HCSC. By offering firm-level guidance for managers, this study informs healthcare organizations about addressing the challenge of counterfeiting in the HCSC.

scholarly journals The impact of the COVID-19 pandemic on mental health

2021 ◽  
Vol 11 (8) ◽  
pp. 44-54
Author(s):  
Julia Budzyńska ◽  
Magdalena Leśniewska ◽  
Ilona Kozioł ◽  
Joanna Milanowska
Keyword(s):  
Mental Health ◽  
Psychological Impact ◽  
Economic Security ◽  
Post Traumatic Stress ◽  
Past Infection ◽  
Global Epidemic ◽  
Response To Stress ◽  
Post Traumatic ◽  
Health Organization ◽  
The Impact

BACKGROUND: The outbreak of a coronavirus pandemic in 2019 posed a serious threat to the global population. Coronavirus Disease 2019 (COVID-19) has not only been a public health emergency, but has also affected mental health worldwide. Patients were exposed to a number of significant stressors during COVID-19 infection by which it appears that it may have had a major impact on mental health. Little is known about changes in levels of psychological affect, stress, anxiety and depression during this pandemic.AIM OF THE STUDY: The purpose of this study was to analyze the most recent available literature on the association of pandemic COVID-19 with psychiatric disorders occurring both as a result of past infection and in response to stress associated with the new situation of a global epidemic of Sars-CoV-2 virus.RESULTS: The psychological effects of the epidemic are clearly noticeable. The study identified groups particularly vulnerable to developing symptoms of anxiety, depression and post-traumatic stress disorder. Risk factors were also identified in people working in health care as having direct contact with the effects of infection with the new virus.SUMMARY AND CONCLUSIONS: Key elements of preventing psychological impact are the creation of a mental health organization. Another important task for governments is to create the conditions for economic security, as financial problems or job losses can also be the cause of mental crises.

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