Research on Medical Data Access Control and Security Sharing in Public Health Events

With the continuous developing of the COVID-2019, more and more countries and regions have strictly supervised the personal information and location data of confirmed patients and their close contacts. At the same time, how to share the necessary information of patients while ensuring that the personal privacy of patients and their close contacts is not leaked, the access process is transparent, traceable, and data is not tampered with, has become a key issue that needs to be solved urgently. Based on this, we propose an accountable medical attribute pass (AMAP) access control scheme in this paper. The scheme first combines the blockchain with an attribute-based access control model. While introducing the blockchain to trace the source of the access process, the access control strategy and key steps in the access system are deployed on the blockchain in the form of smart contracts, so that the entire system can not only ensure the safe access of users to data, but also trace the source of the entire access process. In particular, the solution introduces the medical attribute pass module. Users apply for access in the form of a pass, which avoids multiple matches between subject attributes and access control strategies in the traditional access control model. While achieving fine-grained access control to medical data, a certain degree Improved access efficiency. Finally, the security analysis shows that this scheme can resist denial of service attacks, malicious tampering attacks, single point of failure attacks, main body masquerading attacks, replay attacks, etc. Experiments and performance analysis show that this solution is compared with other solutions. Under the same access control strategy, the more access times, the more obvious the advantages of this solution;the more access control strategies have the same access control strategy, the more effective the solution is. The more obvious the advantages. © 2023 Journal of Propulsion Technology. All rights reserved.

Clinical Guidelines for Dentistry in China During the Coronavirus Disease 2019 Pandemic

Preventing the spread of Coronavirus Disease 2019 (COVID-19) has become the focus of epidemiologists as the highly infectious respiratory disease spreads primarily by close, person-to-person contact via droplets or the skin. Aerosol dissemination may occur in a closed, high-aerosol environment. The aerosols generated in dental procedures can pollute surrounding air and device surfaces. In this paper, we summarize prevention and control measures relating to dentistry. We focus on the relationship between COVID-19 and dental disease prevention and control in dental treatment procedures and imaging examinations, oral health education and perspectives, and guidance for the practice of dentistry during the COVID-19 pandemic to provide a consistent and broadly endorsed standard for dental hospital and clinics. Copyright © 2021 Luo, Wang, Tang, Peng, Ma and Wu.

An integrated interval type-2 fuzzy rough technique for emergency decision making

This paper aims to develop a hybrid emergency decision-making (EDM) method by combining best–worst method (BWM), multi-attributive border approximation area comparison (MABAC) and prospect theory (PT) in trapezoidal interval type-2 fuzzy rough (TrIT2FR) environment. In this hybrid method, the decision information is represented by trapezoidal interval type-2 fuzzy rough numbers (TrIT2FRNs). Firstly, this paper defines the TrIT2FRN and analyzes its desirable properties. Then, the TrIT2FR-BWM is developed to determine criteria weights. To develop the TrIT2FR-BWM, this paper completes the following three core issues: (i) propose an effective theorem to normalize the TrIT2FR weights;(ii) build a crisp programming model to transform the minmax objective of weight-determining model for the TrIT2FR-BWM;(iii) design a consistency ratio for the TrIT2FR-BWM to check the reliability of the determined criteria weights. Afterwards, this paper extends the classical MABAC into TrIT2FR environment to calculate the border approximation area (BAA). Subsequently, the PT is used to rank the alternatives, in which the calculated BAA is selected as the reference point. Lastly, the validity of the proposed method is certificated with a real site selection case of makeshift hospitals on COVID-19. Sensitivity analysis and comparative analyses are conducted to illustrate the robustness and superiorities of the proposed method. Some valuable results are summarized as follows: (i) the best alternative determined by the proposed method conforms with the actual selection result, (ii) the proposed models in the TrIT2FR-BWM have strong robustness, (iii) PT is helpful to improve the decision quality of EDM. © 2023 Elsevier B.V.

Experts' consensus on severe acute respiratory syndrome coronavirus-2 vaccination of children.

At present, severe acute respiratory syndrome coronavirus-2(SARS-CoV-2)infection is still rampant worldwide.As of September 10, 2021, there were about 222 million confirmed cases of corona virus disease 2019(COVID-19)and more than 4.6 million deaths worldwide.With the development of COVID-19 vaccines and the gradual vaccination worldwide, the increasing number of cases in children and unvaccinated young people has drawn attention.According to World Health Organization surveillance data, the proportion of COVID-19 infection cases in children gradually increased, and the proportion of cases in the age groups of under 5 years and 5-14 years increased from 1.0% and 2.5% in January 2020 to 2.0% and 8.7% in July 2021, respectively.At present, billions of adults have been vaccinated with various COVID-19 vaccines worldwide, and their protective effects including reducing infection and transmission, reducing severe disease and hospitalization, and reducing death, as well as high safety have been confirmed.Canada, the United States, Europe and other countries have approved the emergency COVID-19 vaccination in children and adolescents aged 12 to 17 years, and China has also approved the phased vaccination of COVID-19 vaccination in children and adolescents aged 3 to 17 years. For smooth advancement and implementation of COVID-19 vaccination in children, academic institutions, including National Clinical Research Center for Respiratory Diseases, National Center for Children's Health, and The Society of Pediatrics, Chinese Medical Association organized relevant experts to reach this consensus on COVID-19 vaccination in children.Copyright © 2021 by the Chinese Medical Association.

Twenty key issues on severe acute respiratory syndrome coronavirus-2 vaccination in children.

Severe acute respiratory syndrome coronavirus-2(SARS-CoV-2)infection is still worldwide.As a vulnerable group, severe and dead pediatric cases are also reported.Under this severe epidemic situation, children should be well protected.With the widespread vaccination of SARS-CoV-2 vaccine in adults, the infection rate have decreased.Therefore, SARS-CoV-2 vaccine inoculation for children groups step by step is of great significance to the protection of children and the prevention and control of corona virus disease 2019(COVID-19) as a whole.But the safety of children vaccinated with SARS-CoV-2 vaccine is a main concern of parents.Therefore, in order to ensure the safety of vaccination and the implementation of vaccination work, National Clinical Research Center for Respiratory Diseases, National Center for Children's Health and the Society of Pediatrics, Chinese Medical Association organized experts to interpret the main issue of parents about SARS-CoV-2 vaccine for children, in order to answer the doubts of parents.Copyright © 2021 by the Chinese Medical Association.

Diagnosis, treatment and prevention of 2019 novel coronavirus infection in children: experts' consensus statement (Third Edition).

2019 novel coronavirus(2019-nCoV) outbreak is one of the public health emergency of international concern.Since the 2019-nCoV outbreak, China has been adopting strict prevention and control measures, and has achieved remarkable results in the initial stage of prevention and control.However, some imported cases and sporadic regional cases have been found, and even short-term regional epidemics have occurred, indicating that the preventing and control against the epidemic remains grim.With the change of the incidence proportion and the number of cases in children under 18 years old, some new special symptoms and complications have appeared in children patients.In addition, with the occurrence of virus mutation, it has not only attracted attention from all parties, but also proposed a new topic for the prevention and treatment of 2019-nCoV infection in children of China.Based on the second edition, the present consensus further summarizes the clinical characteristics and experience of children's cases, and puts forward recommendations on the diagnostic criteria, laboratory examination, treatment, prevention and control of children's cases for providing reference for further guidance of treatment of 2019-nCoV infection in children.Copyright © 2021 Chinese Medical Association

Bi-directional emotional contagion: An analysis of chinese parents? social media data

Analysis of social media during the COVID-19 quarantine period in Mainland China provides access to a large amount of user-generated content for sentiment analysis during this unexpected and stressful time period. This study focuses on emotions that were communicated in the context of interactions between parents and young children to explore their emotional attitudes and emotional contagion. Results suggest that positive emotional attitudes were more prevalent in parent-child interactions, which contrasts with previous research. In compar-ison to their children, parents expressed more negative moods. Nonetheless, Chinese preschoolers and their parents influenced each other's emotions with bi-directional effects, providing evidence of emotional contagion. Parents' emotional transmission sometimes resulted in passive suppression by the young children. Emotions were manifested more through physical or behavioral interactions as opposed to verbal statements of feelings, espe-cially during parent to child transmissions. The transmission of emotions from children to parents consisted mainly of two types: children's emotional catharsis and children's active emotional agency. The discussion ex-plores explanations for the observed emotional contagion of positive emotions between parents and children, considers the role of power and agency during emotional contagion, and discusses the effects of Chinese socio-cultural factors on the sentiment analysis.

Global DSGE models

We introduce our GDSGE framework and a novel global solution method, called simultaneous transition and policy function iterations (STPFIs), for solving dynamic stochastic general equilibrium models. The framework encompasses many well-known incomplete markets models with highly nonlinear dynamics such as models of financial crises and models with rare disasters including the current COVID-19 pandemic. Using consistency equations, our method is most effective at solving models featuring endogenous state variables with implicit laws of motion such as wealth or consumption shares. Finally, we incorporate this method in an automated and publicly available toolbox that solves many important models in the aforementioned topics, and in many cases, more efficiently and/or accurately than their original algorithms. © 2023 Elsevier Inc.

Visual protest repertoires and protesters' health identity: a battlefield of the anti-new normal movement

This study explores the health identity of the anti-new normal protesters during the coronavirus pandemic through analyzing the visual protest repertoires that were employed by the protesters in the two waves of demonstrations occurring across the world between 2020 and 2021. The authors examine the protesters' interpretations of the coronavirus and its mandatory protective measures, their imaginations of the social milieu that has been forever transformed by COVID-19, and their expectations of life. The protesters prioritize the innate physical body, which is essentialized in that there is a static relationship between the physical body and the self as well as between the self and others. The current study enriches our understandings of the new normal opponents' health identity and provides insights into how it differs from that of the supporters. It helps health educators to effectively construct and deliver health promotion messages and foster healthy behaviors during the pandemic.

Breaking the transverse-magnetic polarized light emission bottleneck of AlGaN LED using nano-patterned substrates and Al reflector

Ultraviolet light-emitting diodes based on Al-rich AlGaN semiconductors operating in the 210 nm-280 nm have drawn significant interest for many critical applications, including water purification, disinfection of air and surface as preventive measures of SARS COV-2, sterilization, etc. However, for the above-mentioned applications, the current technology still relies on toxic and inefficient mercury-based UV lamps. Driven by the immense need for an efficient, mercury-free, compact alternative technology, future water purification and disinfection technologies require the development of high-efficiency UV-C light-emitting diodes. To date, the external quantum efficiency (EQE) in AlGaN quantum well (QW) UV-LED heterostructures has been severely limited due to several factors including large densities of defects/dislocations, extremely low light extraction efficiency (LEE) of dominant transverse magnetic (TM) light, absorptive p -GaN contact, and total internal reflection (TIR). © 2022 IEEE.

Watts-level ultraviolet-C LED integrated light sources for efficient surface and air sterilization

With the epidemic of the coronavirus disease (COVID-19) infection, AlGaN-based ultraviolet-C light emitting diodes (UVC-LEDs) have attracted widespread attention for their sterilization application. However, the sterilization characters of high power integrated light sources (ILSs) haven't been widely investigated before utilizing in public sanitary security. In this work, by integrating up to 195 UVC-LED chips, high power UVC-LED ILSs with a light output power (LOP) of 1.88 W were demonstrated. The UVC-LED ILSs were verified to have efficient and rapid sterilization capability, which have achieved more than 99.9% inactivation rate of several common pathogenic microorganisms within 1 s. In addition, the corresponding air sterilization module based on them was also demonstrated to kill more than 97% of Staphylococcus albus in the air of 20 m(3) confined room within 30 min. This work demonstrates excellent sterilization ability of UVC-LED ILSs with high LOP, revealing great potential of UVC-LEDs in sterilization applications in the future.

Deep Learning for COVID-19 Prediction based on Blood Test

The COVID-19 pandemic is highly infectious and has caused many deaths. The COVID-19 infection diagnosis based on blood test is facing the problems of long waiting time for results and shortage of medical staff. Although several machine learning methods have been proposed to address this issue, the research of COVID-19 prediction based on deep learning is still in its preliminary stage. In this paper, we propose four hybrid deep learning models, namely CNN+GRU, CNN+Bi-RNN, CNN+Bi-LSTM and CNN+Bi-GRU, and apply them to the blood test data from Israelta Albert Einstein Hospital. We implement the four proposed models as well as other existing models CNN, CNN+LSTM, and compare them in terms of accuracy, precision, recall, F1-score and AUC. The experiment results show that CNN+Bi-GRU achieves the best performance in terms of all the five metrics (accuracy of 0.9415, F1-score of 0.9417, precision of 0.9417, recall of 0.9417, and AUC of 0.91).

Privacy Data Protection Scheme for Patients with Major Outbreaks

In 2020, the global outbreak of COVID-19 made the global healthcare system face huge test, and the security of COVID-19 patients privacy data is an extremely important part of the healthcare information system. During the outbreak, there were numerous cases of privacy data leakage of Chinese patients with COVID-19, which caused great distress to patients. This paper proposes a patient privacy data protection scheme combined with blockchain for major epidemics using delegated Byzantine fault tolerant (dBFT) mechanism. The scheme is based on a federated chain, distributing different players such as government agencies, medical institutions and the public in a dual-chain model of main and side chains, and using side chain technology to interact with information between the main and side chains for secure sharing of patient data. It proposes the on-chain hierarchical data encryption scheme (HDES), which protects the patient privacy data on the chain at a fine-grained level using hierarchical encryption technology. Finally, the requested data throughput of the main-side dual-chain model and the encryption and decryption efficiency of the HDES scheme are experimentally analyzed and compared with the existing blockchain electronic medical case scheme. The comparison results show that this scheme has certain efficiency, strong security and high relevance. © 2022, Journal of Computer Engineering and Applications Beijing Co., Ltd.;Science Press. All rights reserved.

Construction and Effect Analysis of MOOC-Based Self-organized Teaching and Research Model for Primary and Secondary School Teachers

The outbreak of the COVID-19 epidemic has promoted the development of online teaching and research for primary and secondary school teachers, and has forced them to improve their informatized teaching abilities rapidly. This research is guided by the basic principles of online teaching and learning, integrated into the 'Internet +' thinking, and adopts literature research and theoretical deduction to determine self-organized teaching and research steps, which includes 'Clear needs and starting evolution-Spontaneous learning, triggering ups and downs- Interactive communication and cause mutations- Generating results and triggering transitions-Migration practices, gathering and bifurcating'. This research gives full play to the supporting role of MOOC (Massive Open Online Course) platforms, resources and tools. Finally, the MOOC-based self-organized teaching and research model for primary and secondary school teachers is constructed. On this basis, this research relies on the 'Smart Classroom Teaching' on the Chinese University MOOCs Platform, and the quasiexperimental research method is used to carry out the practical application of the self-organized teaching and research model. Effect analysis shows that this model can improve the teaching and research performance of primary and secondary school teachers in a short period, prompting teachers to achieve a deep understanding of smart classroom teaching, and effectively solve real-world education and teaching problems. © 2021 IEEE.

Impact of work resumption on air quality after subsiding of COVID-19: evidence from China

This paper explores the short-run impact of work resumption, extensively launched on February 10, 2020 in China, on air quality after the subsiding of COVID-19. Utilizing the data of 1012 air-quality monitoring sites in 233 cities derived from the Real-time Release Air Quality Platform and the difference-in-differences method, we find that alternative measures of air quality index in non-Hubei provinces increase significantly, compared with those in Hubei province which was temporarily not allowed work resumption due to the severity of epidemic. Specifically, our results reveal a rise in AQI of 11.28 per cent, in PM2.5 of 12.47 per cent, in PM10 of 10.49 per cent, and in NO2 of 23.64 per cent, relative to the baseline mean. Moreover, the deterioration of air quality is found to be caused by intracity rather than intercity migration.

Drive High Power UVC-LED Wafer into Low-Cost 4-Inch Era: Effect of Strain Modulation

Ultraviolet-C light-emitting diodes (UVC-LEDs) have great application in pathogen inactivation under various kinds of situations, especially in the fight against COVID-19. Unfortunately, its epitaxial wafers are so far limited to a size of 2 inches, which greatly increases the cost of massive production. In this work, a 4-inch crack-free high-power UVC-LED wafer is reported. This achievement relies on a proposed strain-tailored strategy, where a 3D to 2D (3D-2D) transition layer is introduced during the homo-epitaxy of AlN on the high temperature annealed (HTA)-AlN template, which successfully drives the original compressive strain into a tensile one and thus solves the challenge of realizing a high-quality Al0.6Ga0.4N layer with a flat surface. This smooth Al0.6Ga0.4N layer is nearly pseudomorphically grown on the strain-tailored HTA-AlN template, leading to 4-inch UVC-LED wafers with outstanding performances. The strategy succeeds in compromising the bottlenecked contradictory in producing a large-sized UVC-LED wafer on pronounced crystalline AlN template: The compressive strain in HTA-AlN allows for a crack-free 4-inch wafer, but at the same time leads to a deterioration of the AlGaN morphology and crystal quality. The launch of 4-inch wafers makes the chip fabrication process of UVC-LEDs match the mature blue one, and will definitely speed up the universal application of UVC-LED in daily life.

Assessment of future teachers' satisfaction with the conditions for the implementation of Russian-Chinese joint educational programs

The relevance of the research is due to the need to increase the competitiveness of joint educational programs of pedagogical orientation in the system of Russian-Chinese relations in the field of higher education. The student satisfaction indicator not only indicates the attractiveness/unattractiveness of the educational program, but also allows you to identify the most vulnerable places in the organization of the educational process. The purpose of the study is to identify ways to improve the conditions for the implementation of Russian-Chinese joint educational programs of pedagogical orientation. Materials and methods. The study applied a descriptive method to conducting a survey of students studying under the bachelor's degree majors "Preschool Education", "Music Education", "Fine Arts" at the Moscow Institute of Arts of the Weinan Pedagogical University (Province Shanxi). 198 graduates participated in the questionnaire, accounting for 77% of the total number of graduates from the Moscow Institute of Arts. The study was conducted using the author's questionnaire, compiled taking into account the practice of assessing student satisfaction at Moscow Pedagogical State University and the recommendations of the Ministry of Education of the People's Republic of China on the evaluation of joint Chinese-foreign educational programs. Results. In the study, the assessment of students' satisfaction with learning was carried out in five directions: satisfaction with the quality and content of training, satisfaction with the organization of the educational process, satisfaction with the material and technical support of the educational process, satisfaction with the organization of research activities, satisfaction with the socio-psychological climate at the institute. The study found that students' satisfaction with the organization of the educational process (68.2%) and its material and technical support (66.92%) was the highest, compared with their publishing activities in research work (60.4%). Despite the impossibility of implementing programs under the "3+1" scheme, due to the COVID-19 pandemic, the internal motivation of students during online training in the "4+0" mode did not decrease, which led to the preservation of the contingent of students throughout the entire period of program implementation. Discussion and conclusion. The research results have practical significance for managers, employees and teachers of pedagogical universities participating in the implementation of Chinese-foreign joint educational programs, as well as for representatives of the scientific community dealing with the problems of ensuring the quality of such programs. Further research of students' satisfaction with studying under Russian-Chinese joint educational programs for teacher training can be aimed at analyzing the quality of implementation of such programs at the level of academic degrees of students of pedagogical universities. © 2021 LLC Ecological Help. All rights reserved.

Twenty key issues on severe acute respiratory syndrome coronavirus-2 vaccination in children

Severe acute respiratory syndrome coronavirus-2(SARS-CoV-2)infection is still worldwide.As a vulnerable group, severe and dead pediatric cases are also reported.Under this severe epidemic situation, children should be well protected.With the widespread vaccination of SARS-CoV-2 vaccine in adults, the infection rate have decreased.Therefore, SARS-CoV-2 vaccine inoculation for children groups step by step is of great significance to the protection of children and the prevention and control of corona virus disease 2019(COVID-19) as a whole.But the safety of children vaccinated with SARS-CoV-2 vaccine is a main concern of parents.Therefore, in order to ensure the safety of vaccination and the implementation of vaccination work, National Clinical Research Center for Respiratory Diseases, National Center for Children's Health and the Society of Pediatrics, Chinese Medical Association organized experts to interpret the main issue of parents about SARS-CoV-2 vaccine for children, in order to answer the doubts of parents. Copyright © 2021 by the Chinese Medical Association.