[Cross-sectional study on the use of masks among occupational groups with high-risk positions for overseas import and pollution transmission].

Objective: To investigate the wearing of masks and the knowledge of masks among high-risk positions for overseas import and pollution transmission. Methods: From May 14 to 17, 2022, a convenient sampling method was used to conduct an online survey among 963 workers in high-risk positions for overseas import and pollution transmission in Beijing. The behaviors of individual use and wearing masks, the distribution and supervision of the unit, the knowledge of personal mask protection and the subjective feelings of wearing masks were analyzed. The χ(2) test and logistic regression model were used to analyze the influencing factors of the correct selection of masks. Results: The majority of the workers in high-risk positions for overseas import and pollution transmission were male (86.0%, 828/963), age concentration in 18-44 years old (68.2%, 657/963), and the majority of them had college or bachelor degrees (49.4%, 476/963). 79.4%(765/963) of the workers chose the right type of masks, female, 45-59 years old and high school education or above were the risk factors for correct selection of masks (P <0.05). Workers had good behaviors such as wearing/removing masks, but only 10.5% (101/963) could correctly rank the protective effect of different masks. 98.4% (948/963) of the workers believed that their work units had provided masks to their employees, and 99.1% (954/963) and 98.2%(946/963) of them had organized training and supervision on the use of masks, respectively. 47.4%(456/963) of the workers were uncomfortable while wearing masks. Conclusion: The overall selection and use of masks among occupational groups in high-risk positions for overseas import and pollution transmission in China need to be further standardized. It is necessary to strengthen supervision and inspection on the use of masks among occupational groups, and take improvement measures to improve the comfort of wearing masks.

The relationship between SARS-CoV-2 vaccination and COVID-19 in children

Objective: To analyze the vaccination status of SARS-CoV-2 in children, and explore the relationship between SARS-CoV-2 vaccination and COVID-19 in children. Methods: A retrospective study was conducted to analyze the clinical data of 335 cases of SARS-CoV-2 Omicron variant infection from February 15, 2022 to March 18, 2022 in Shenzhen Third People's Hospital. Results: Among 335 children with SARS-CoV-2 infection, 174(51.9%) cases were vaccinated with the SARS-CoV-2 vaccine;33(31.4%) cases were vaccinated in the 3-<6 years old group;141(61.3%) cases were vaccinated in the 6-<14 years old group. There was a statistically significant difference in the proportion of SARS-CoV-2 vaccination between the 6-<14 years old group and the 3-<6 years old group (X2=26.1, P < 0.05). In the study cohort, 3-<6 years old group and 6-<14 years old group, there was no significant difference in the incidence of COVID-19 in the vaccinated group compared with the unvaccinated group (P > 0.05). In the study cohort, the proportion of confirmed cases of 1 dose of SARS-CoV-2 vaccine and 2 doses or more of SARS-CoV-2 vaccine was 89.5% (68 cases) and 77.6% (76 cases), respectively;in the 6~<14 years old group, the proportion of confirmed cases of 1 dose of SARS-CoV-2 vaccine and 2 doses or more of SARS-CoV-2 vaccine was 90.0% (54 cases) and 76.5% (62 cases), respectively;the differences were statistically significant (X2=4.264, P < 0.05;X2=4.279, P < 0.05). The IgG levels of 18.28 (6.61, 55.2) AU/mL and 58.3 (25.85, 131.41) AU/mL in the study cohort who were vaccinated for 1 dose, 2 doses and more, respectively;the IgG levels of 20.13 (8.33, 44.33) AU/mL and 56.57 (25.85, 150.07) AU/mL in the 6~<14 years old group who were vaccinated for 1 dose, 2 doses and more, respectively;and the differences were statistically significant (Z=-4.37, P < 0.05;Z=-3.96, P < 0.05). Conclusions: Children who received 2 doses of SARS-CoV-2 vaccine have a lower incidence of COVID-19 and higher levels of SARS-CoV-2 antibodies compared with who received 1 dose. It is recommended that children are advised to be vaccinated against the COVID-19.

COVID-19 breakthrough infection after four doses of the vaccines: a case report

The COVID-19 vaccines provide a high degree of protection against severe disease, hospitalisation, and death. However, no vaccine claimed 100% effectiveness and it is expected that a small proportion of vaccinated individuals may develop a breakthrough infection due to individual differences, virus variants and other factors. We conducted an epidemiological investigation and analysis of an imported case who had finished four doses of vaccination, and in order to provide a relevant reference for regular epidemic prevention and control in the post-pandemic era.

Modeling and Analysis of Infectious Disease Transmission Considering Protection and Isolation

Based on the SEIR model, two compartments for self-protection and isolation are introduced, and a more general infectious disease transmission model is proposed.Through qualitative analysis of the model, the basic reproduction number of the model is calculated, and the local asymptotic stability of the disease-free equilibrium point and the endemic equilibrium point of the model is analyzed through eigenvalue theory and Routh-Hurwitz criterion.The numerical simulation and fitting results of COVID-19 virus show that the proposed SEIQRP model can effectively describe the dynamic transmission process of the infectious disease.In the model, the three parameters, i.e.protection rate, incubation period isolation rate, and infected person isolation rate play a very critical role in the spread of the disease.Raising people's awareness of self-protection, focusing on screening for patients in the incubation period, and isolating and treating infected people can effectively reduce the spread of infectious diseases. © 2023 Northeastern University.All rights reserved.

Build an Agent-Based Model for COVID-19 Effect of Mitigation Policies

Non-Drug Intervention (NDI) is one of the important means to prevent and control the outbreak of coronavirus disease 2019 (COVID-19), and the implementation of this series of measures plays a key role in the development of the epidemic. The purpose of this paper is to study the impact of different mitigation measures on the situation of the COVID 19, and effectively respond to the prevention and control situation in the "post-epidemic era". The present work is based on the Susceptible-Exposed-Infectious-Remove-Susceptible (SEIRS) Model, and adapted the agent-based model (ABM) to construct the epidemic prevention and control model framework to simulate the COVID-19 epidemic from three aspects: social distance, personal protection, and bed resources. The experiment results show that the above NDI are effective mitigation measures for epidemic prevention and control, and can play a positive role in the recurrence of COVID-19, but a single measure cannot prevent the recurrence of infection peaks and curb the spread of the epidemic;When social distance and personal protection rules are out of control, bed resources will become an important guarantee for epidemic prevention and control. Although the spread of the epidemic cannot be curbed, it can slow down the recurrence of the peak of the epidemic;When people abide by social distance and personal protection rules, the pressure on bed resources will be eased. At the same time, under the interaction of the three measures, not only the death toll can be reduced, but the spread of the epidemic can also be effectively curbed. © 2022 ACM.

Nonlinear dynamics modeling and epidemic forecast of COVID-19

To study the spreading trend and risk of COVID-19, according to the characteristics of COVID-19, this paper proposes a new transmission dynamic model named SLIR(susceptible-low-risk-infected-recovered), based on the classic SIR model by considering government control and personal protection measures. The equilibria, stability and bifurcation of the model are analyzed to reveal the propagation mechanism of COVID-19. In order to improve the prediction accuracy of the model, the least square method is employed to estimate the model parameters based on the real data of COVID-19 in the United States. Finally, the model is used to predict and analyze COVID-19 in the United States. The simulation results show that compared with the traditional SIR model, this model can better predict the spreading trend of COVID-19 in the United States, and the actual official data has further verified its effectiveness. The proposed model can effectively simulate the spreading of COVID-19 and help governments choose appropriate prevention and control measures. Copyright ©2023 Control and Decision.

Preparation and Properties of an Efficient Purification Material for Personal Protection

At present, the filtration of virus and other small particles in the air by meltblown cloth produced by electret treatment mainly depends on its electrostatic adsorption mechanism. However, because the surface charge of melt blown fabric can not be maintained for a long time, it can not maintain high efficiency filtration for a long time. Therefore, there is no guarantee for the medical staffs to not be infected by COVID-19. Therefore, it is necessary to improve the mechanical filtration efficiency of melt blown fabric in the situation of an electric charge loss. In this paper, nylon 6 (PA6) nanofibers were electrospun on melt blown cloth by electrospinning technology, and a sandwich material with melt blown cloth as surface layer and PA6 nanofibers as middle layer was made by hot- pressing technology;the surface morphology, thermal and mechanical properties of the sandwich material were characterized, and its filtration performance was tested. The experimental results show that the surface integrity of the sandwich material is high, and the diameter of nanofibers can reach about 67 nm;without the electret treatment, the filtration efficiency of the sandwich material for particles in an size of 0.2 μm is more than 95%,while the filtration efficiency of non-woven fabric is zero;the filtration resistance of the material is about 284 Pa, which is suitable for personal protection. © 2023 Chengdu University of Science and Technology. All rights reserved.

Research progress of nasal mucosal immunization vaccine against COVID-19

Respiratory mucosal immune system is the body's first line of defense against infection. Since the outbreak of novel coronavirus disease 2019 (COVID-19) in 2019, nasal mucosal immune vaccine, with its ability to induce cellular, humoral and mucosal triple immune responses, has become a research hotspot. This article focuses on novel coronavirus, with an understanding of its structure and pathogenesis, a brief introduction to the immune mechanism of nasal mucosa, a summary of the different types of nasal mucosal immune vaccines and their clinical research, aiming to provide some theoretical reference for the development of new vaccines, and exploration of the best methods and strategies to combat COVID-19.

Water Management Priorities in a Post-COVID World

This paper maintains that the growing crisis of water scarcity cannot be addressed from within the paradigm that created the problem. The extractive paradigm which prevails views high economic growth as the main goal of development to be achieved through the increasing extraction of natural resources. Approaches to water management that are based on this paradigm view water as a resource primarily meant for human consumption. In contrast, the paper proposes an ecosystem paradigm in which water is viewed as being embedded within the ecosystem as an essential part of it to be conserved and preserved for future generations. The author identifies five areas of action for water management in the post-COVID context: move away from water-intensive agriculture through crop diversification;sustainable and community-based groundwater management;protection of river systems and wetlands;ensuring water quality and drinking water security and the creation of strong legal frameworks for water governance. © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2023.

The Impact of the Pandemic on the Greek Constitution

This chapter discusses the main legal problems Greece faced during the various phases of the COVID-19 crisis. The impact of the pandemic on the protection of civil rights seems to be lasting and nefarious. Fundamental rights were subject to unprecedented restrictions for the sake of public health, without any effective judicial protection. Free movement, the right of assembly, religious liberty, freedom of speech, economic liberty, and ultimately personal autonomy limited by compulsory vaccination, were regulated exhaustively by detailed and intrusive administrative rules and prohibitions. Moreover, the pandemic put under great pressure the existing framework for the constitutional protection of fundamental rights where the principle of proportionality is the cornerstone of judicial review. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2022.

A stimulus-organism-response perspective to examine green hotel patronage intention

PurposeThis study aims to investigate the relationships among monetary cost (stimulus), perceived greenwash fear, attitude and perceived behavioural control (organism-related factors) and green hotel patronage intention (response) using the stimulus-organism-response (S-O-R) model.Design/methodology/approachA total of 262 valid questionnaires were collected. Data were collected using the purposive sampling method and tested using the partial least squares (PLS) approach.FindingsMonetary cost is positively related to only one organism-related factor which is perceived greenwash fear. All organism-related factors are positively related to response, which is green hotel patronage intention. Attitude mediates the relationship between perceived greenwash fear and green hotel patronage intention, as well as perceived behavioural control and green hotel patronage intention.Research limitations/implicationsA longitudinal study can be performed in the future to observe the actual green hotel patronage behaviour of customers.Practical implicationsGreen hoteliers should focus on the development of communication strategies to enhance their corporate reputation. Green hoteliers also need to build trust by showing their green initiatives are genuine, identify consumers who are willing to pay more for green hotels and offer promotions with price incentives such as frequency discounts, coupons and rebates to increase interest and trialability.Originality/valueFew studies have focused on the use of monetary cost as a stimulus in the S-O-R model to predict green hotel patronage intention. This study also tested the mediating effect of attitude, one of the organism-related factors, in the model.

Transformative service research approaches for visitor experiences in major sporting events

PurposeThis research conceptualises the hallmark event, Melbourne Cup in Australia, as a major sporting brand experience. While numerous studies have explored consumer engagement and experiences in major sporting events, few research studies highlight the negative issues, such as alcoholism, gambling and violence, that may affect consumer engagement and experience. This article addresses the challenges and opportunities of providing immersive and transformative experiences through transformative service research (TSR) approaches when such negative issues are swirling around.Design/methodology/approachThe paper is conceptual. It uses the example of Melbourne Cup to illuminate aspects of the conceptual framework.FindingsThe article unpacks a myriad of positive and negative immersive brand experiences and contributes a conceptual framework to understand the sporting brand experience phenomenon and shows how authentically responsible marketing approaches can improve the sport spectator experience.Research limitations/implicationsInsights from the extended TSR framework presents implications for various organisations that are involved with strategic destination marketing approaches. It guides key stakeholders to engage in dialogue and collaborate in order to improve the attendee transformative experience. Inviting collaborators will facilitate the exchange of ideas that will improve event organisation. Consistent approaches among hospitality service providers would improve alcohol service and create a safe environment for attendees. The TSR framework guides players of the experience to engage in meaningful dialogue with a common goal to improve consumer wellbeing. Education and training therefore are key elements in the consumer sporting brand experience.Practical implicationsThe adapted TSR framework offers insights to destination marketers such as sporting agencies, tour operators and sporting organisations/clubs. Marketers may promote bigger sporting events and organise tours via travel agencies and ignore key elements that may influence attendee decision. Destination marketing organisations (DMOs) can use the framework to promote effective planning and the key initiatives that the iconic event is involved with. The framework can be used as a guide to manage similar international events. Events of major or mega size and international reputation need specific frameworks that address crowd behaviours of similar sizes.Originality/valueAn extended transformative service approach is being conceptualised for major sporting brand experiences. Practical implications are also highlighted for DMOs when raising the profile of city brands.

Resilience strategies of Filipino irregular migrant domestic workers in the Netherlands during the COVID-19 pandemic

COVID-19 has brought a combination of health, socioeconomic and protection challenges to migrants everywhere, and a common view is that these effects have been harshest for those already in vulnerable situations before the pandemic. However, the lived experiences of Filipino irregular migrant domestic workers (IMDWs) in the Netherlands point to a range of impacts instead of a homogenous one. Drawing on interviews and participant observations, we analyse three specific pandemic consequences: income and financial remittance volatility, dual country or transnational precarity and physical and migration status immobility. We then analyse the resilience strategies deployed by IMDWs to navigate through such impacts. While our focus is on the microlevel, we also highlight the vital importance of the responses by the community on the mesolevel, and the government on the macrolevel. Following this relational approach, we put forward a conceptualisation of individual resilience as the capacity to navigate the negative impacts of a shock or crisis to maintain, adapt, or transform valued functionings. We argue that IMDWs cultivate resilience despite their precarious legal status;however, the effectiveness of strategies is contingent on personal circumstances as well as the sociopolitical context wherein they are deployed. The paper contributes to the literature by providing a more nuanced picture of the impacts of and responses to COVID-19 in relation to migrants with irregular status. The articulation of resilience in terms of valued functionings also paves the way for the advancement of the still nascent research agenda on migration and human development.

The exclusive countryside post‐pandemic

The processes through which the British countryside has become increasingly socially exclusive have been a theme of rural scholars' research since the 1970s, and these social changes are reflected in experiences of the pandemic. This paper begins by observing the central importance of power relations, and then discusses the pivotal role of housing as a motor of rural social change and exclusivity. Notwithstanding these processes, and indeed largely because of these asymmetric power relations, rural poverty remains. This paper summarises experiences of social exclusion in rural areas during the pandemic and reflects on the social redistribution of risk and the need to rebuild social protection in a continuing ‘permacrisis'. The emergence of the concept of the permacrisis indicates a recognition that the Covid‐19 pandemic is only one of a series of continuing or recurring challenges or potential ‘shocks' that we face, and this paper concludes by suggesting a research agenda for rural scholars as well as a potential rural policy agenda. [ FROM AUTHOR] Copyright of Geographical Journal is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full . (Copyright applies to all s.)

Electrospun Polymer Nanofibers for Technology Applications: A Short Review

Nanofibers are a type of nanomaterial with a diameter ranging from ten to a few hundred nanometers with a high surface-to-volume ratio and porosity. They can build a network of high-porosity material with excellent connectivity within the pores, making them a preferred option for numerous applications. This review explores nanofibers from the synthesis techniques to fabricate nanofibers, with an emphasis on the technological applications of nanofibers like water and air filtration, photovoltaics, batteries and fuel cells, gas sensing, photocatalysis, and biomedical applications like wound dressing and drug delivery. The nanofiber production market has an expected compound annual growth rate (CAGR) of 6% and should reach around 26 million US $ in 2026. The limitations and potential opportunities for large-scale applications of nano-fibrous membranes are also discussed. We expect this review could provide enriched information to better understand Electrospun Polymer Nanofiber Technology and recent advances in this field. © 2023 Bentham Science Publishers.

THE LABOR OF MEDICAL WORKERS IN THE USA: A SOCIAL ASPECT

The shortage of medical personnel is becoming a heavy burden on modern healthcare systems around the world. All countries, without exception, turned out to be vulnerable, regardless of the level of income and available forms of medical care. This study addresses the issue of staffing at the time of transition to a new technological level of the healthcare system in the United States. The paper shows that at the present stage in the country there is a need for fundamental changes in the personnel policy in the medical field. The challenges caused by the COVID-19 pandemic not only exposed all the vulnerabilities of the national health system, but also opened up opportunities considering the lessons learned to rethink the long-term vision of solving the workforce problems directly related to the use of new technologies. Based on the analysis of statistical data and sociological research, the author identified the latest trends of overcoming barriers in the field of training and retraining of personnel in the context of the transition to digital medicine. Overexertion among medical personnel associated with increased workload has exacerbated the problem of their professional burnout. The mass protests of physicians necessitated the development of new approaches to the labor protection of employees in the medical field. Solution of such important social problems will require a long time and financial costs and is possible only through the joint efforts of the state and the entire community as a whole. © 2023, Russian Academy of Sciences.

Attitude and acceptance toward COVID-19 vaccines among Kabul city's residents: a cross sectional study

Objective: The present study aimed to assess the attitude and perception of Kabul city's residents toward COVID-19 vaccines hesitancy and acceptance. Methods: Applying a cross-sectional study design, the data was collected from 665 participants in Kabul city using a predesigned validated questionnaire. For statistical analysis, Spearman correlation, chi-square, and logistic regression techniques were used. Results: Although the vaccine availability was limited for the public during the survey period, 70.5% of the participants were willing to receive COVID-19 vaccines. Meanwhile, 49.2% participants were concerned about the COVID-19 vaccines side effects. The presence of positive COVID-19 cases among family members and friends (OR: 2.7), presence of fears during COVID-19 pandemic (OR: 4.4) and beliefs that vaccine has important and vital role in people's protection against COVID-19 (OR: 5.3), increase the likelihood of vaccine acceptance among the participants. On the other hand, participant's mistrust of the safety of COVID-19 vaccines (OR: 0.21) and disbelief on ministry of public health "MoPH" advice about COVID-19 vaccine safety and efficiency (OR: 0.27) decrease the odds of COVID-19 vaccine acceptance among the respondents. In addition, a strong correlation was found between vaccine attitude and vaccine acceptance scales (Spearman p=0.52, p<0.001). Conclusion: Although majority of the participants were willing to receive the COVID-19 vaccines, due to high level of participant's concerns about COVID-19 vaccines-related side effects, a great proportion of the respondents were hesitate to receive the COVID-19 vaccines. Accordingly, public awareness about COVID-19 vaccines must be increased to counteract incorrect and misleading propaganda about vaccination and immunization.

Regulatory Aspects on AI and Pharmacovigilance for COVID-19

This chapter looks at current and perspective legislative and regulatory scenario, identifying rules governing the use of Artificial Intelligence in the health sector at European Union level with a focus on the impact of AI on pharmacovigilance activities. After some preliminary considerations on definitory issues, attention will be paid to the challenges posed by AI to pharmaceutical industry in developing medicinal products and monitoring their quality, safety and efficacy. The European strategy addressing the use of AI in pursuing a better health policy will then be outlined, followed by some caveat concerning ethical implications and protection of personal data. © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2022.

A survey of automatic contact tracing approaches using bluetooth low energy

To combat the ongoing Covid-19 pandemic, many new ways have been proposed on how to automate the process of finding infected people, also called contact tracing. A special focus was put on preserving the privacy of users. Bluetooth Low Energy as base technology has the most promising properties, so this survey focuses on automated contact tracing techniques using Bluetooth Low Energy. We define multiple classes of methods and identify two major groups: systems that rely on a server for finding new infections and systems that distribute this process. Existing approaches are systematically classified regarding security and privacy criteria.Copyright © 2021 ACM.

PROTECTION OF PERSONAL DATA IN ECUADOR AS A RESULT OF THE COVID-19 HEALTH EMERGENCY

With the validity of the Constitution of the Republic of 2008, the protection of personal data that is constantly at risk of being violated, due to the development of technology and the use of different digital platforms, is guaranteed. For this reason, it is necessary to identify which rights are implicit and how they can be violated. In Ecuador, particularly since the Covid-19 pandemic, the use of apps has become more frequent, as well as the requirement of information on the health of people by the State, for this reason, it is important to analyze the respective regulation around the subject that has been carried out with the validity of the Personal Data Protection Law. For this purpose, a descriptive research with a qualitative approach has been used, based on the exegetical analysis of the constitutional norms, as well as the Organic Law of Jurisdictional Guarantees and Constitutional Control in contrast to the Organic Law of Data Protection of Ecuador. In addition, to the review of the resolutions of the Constitutional Court of Ecuador and the Inter-American Commission on Human Rights. © 2023, University of Cienfuegos, Carlos Rafael Rodriguez. All rights reserved.