scholarly journals How to Reach a Regional Cooperation Mechanism to Deal With the Epidemic: An Analysis From the Game Theory Perspective

2021 ◽  
Vol 9 ◽  
Author(s):  
Hualei Yang ◽  
Yuanyang Wu ◽  
Yidan Yao ◽  
Siqing Zhang ◽  
Shuo Zhang ◽  
...  
Keyword(s):  
Game Theory ◽  
Economic Development ◽  
Regional Cooperation ◽  
Control Measures ◽  
Global Public Health ◽  
Prevention Measures ◽  
Population Mobility ◽  
Cooperation Mechanism ◽  
The Game Theory ◽  
Health And Economic Development

The outbreak and persistence of COVID-19 have posed a great threat to global public health and economic development. The continuous economic deterioration has been intensified due to the continuous prevention and control measures, such as closed management. Insisting on the prevention of the epidemic or economic restart has become a dilemma for all countries. Epidemic prevention is not only the main behavior of a single country but also a common problem faced by all countries in the region. Continuous prevention measures will affect economic development, but an early restart of the economy is faced with the recurrence of the epidemic. To avoid the emergence of prisoner's dilemma in the governance of the epidemic, each country cannot make decisions with its optimization, and so it is necessary to build a regional cooperation mechanism to achieve the overall optimization of the economy and prevent the epidemic. Based on the game theory, we analyzed the behavior of countries when carrying out regional cooperation to govern the epidemic and put forward specific cooperative income distribution schemes according to the different attributes of the countries. Our results showed that in the presence of population mobility, regional cooperation to govern the epidemic can minimize the total number of infected people and maximize the overall utility of the region, which was significantly better than the overall benefits of the region in the case of non-cooperation. However, in detail, the smaller the difference of preference for preventing and controlling the epidemic between the two, the more likely it is to lead to a win-win situation. Otherwise, there will be one with damaged interests. When damaged interests appear, the appropriate distribution of cooperative income to the country with a small economic scale and low preference in preventing the epidemic is more conducive to the achievement of cooperative mechanisms and the realization of a win-win situation in the region.

scholarly journals Strategy Analysis of Promoting Pollution Control of SMEs

2021 ◽  
Vol 237 ◽  
pp. 01025
Author(s):  
Yanying Zhang ◽  
Gui Jiang ◽  
Ziwei Yu
Keyword(s):  
Game Theory ◽  
Economic Development ◽  
Pollution Control ◽  
Theory Model ◽  
Strategy Analysis ◽  
Pollution Problem ◽  
The Game Theory ◽  
The Government ◽  
Two Sides

The pollution problem of SMEs is an important problem to be solved in the process of China’s economic development. Based on the game theory, this paper takes the government and SMEs as the two sides of the game, constructing the game theory model of pollution control of SMEs, putting forward the strategies to promote the pollution control of SMEs according to the analysis results of the model.

scholarly journals The effects of exposure to pyriproxyfen and predation on Zika virus infection and transmission in Aedes aegypti

2020 ◽  
Vol 14 (11) ◽  
pp. e0008846
Author(s):  
Abdullah A. Alomar ◽  
Bradley H. Eastmond ◽  
Barry W. Alto
Keyword(s):  
Aedes Aegypti ◽  
Zika Virus ◽  
Mosquito Control ◽  
Adult Population ◽  
Adult Emergence ◽  
Control Measures ◽  
Adult Mosquito ◽  
Phenotypic Traits ◽  
Global Public Health ◽  
Prevention Measures

Zika virus (ZIKV) is an emerging mosquito-borne pathogen that can cause global public health threats. In the absence of effective antiviral medications, prevention measures rely largely on reducing the number of adult mosquito vectors by targeting juvenile stages. Despite the importance of juvenile mosquito control measures in reducing adult population size, a full understanding of the effects of these measures in determining mosquito phenotypic traits and in mosquito-arbovirus interactions is poorly understood. Pyriproxyfen is a juvenile hormone analog that primarily blocks adult emergence, but does not cause mortality in larvae. This mechanism has the potential to work in combination with other juvenile sources of mortality in nature such as predation to affect mosquito populations. Here, we experimentally evaluated the effects of juvenile exposure to pyriproxyfen and predatory mosquito Toxorhynchites rutilus on Aedes aegypti phenotypes including susceptibility to ZIKV infection and transmission. We discovered that combined effects of pyriproxyfen and Tx. rutilus led to higher inhibition of adult emergence in Ae. aegypti than observed in pyriproxyfen or Tx. rutilus treatments alone. Adult body size was larger in treatments containing Tx. rutilus and in treatments mimicking the daily mortality of predation compared to control or pyriproxyfen treatments. Susceptibility to infection with ZIKV in Ae. aegypti was reduced in predator treatment relative to those exposed to pyriproxyfen. Disseminated infection, transmission, and titers of ZIKV in Ae. aegypti were similar in all treatments relative to controls. Our data suggest that the combination of pyriproxyfen and Tx. rutilus can inhibit adult Ae. aegypti emergence but may confer a fitness advantage in survivors and does not inhibit their vector competence for ZIKV relative to controls. Understanding the ultimate consequences of juvenile mosquito control measures on subsequent adults’ ability to transmit pathogens is critical to fully understand their overall impacts.

Reputation and Gossip in Game Theory

2019 ◽  
pp. 213-229
Author(s):  
Charles Roddie
Keyword(s):  
Game Theory ◽  
Strategic Behavior ◽  
Third Party ◽  
The Past ◽  
Past Behavior ◽  
Future Behavior ◽  
The Game Theory ◽  
Shed Light

When interacting with others, it is often important for you to know what they have done in similar situations in the past: to know their reputation. One reason is that their past behavior may be a guide to their future behavior. A second reason is that their past behavior may have qualified them for reward and cooperation, or for punishment and revenge. The fact that you respond positively or negatively to the reputation of others then generates incentives for them to maintain good reputations. This article surveys the game theory literature which analyses the mechanisms and incentives involved in reputation. It also discusses how experiments have shed light on strategic behavior involved in maintaining reputations, and the adequacy of unreliable and third party information (gossip) for maintaining incentives for cooperation.

scholarly journals The Superiority of Quantum Strategy in 3-Player Prisoner’s Dilemma

Mathematics ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 1443
Author(s):  
Zhiyuan Dong ◽  
Ai-Guo Wu
Keyword(s):  
Game Theory ◽  
Prisoner's Dilemma ◽  
Prisoner’S Dilemma ◽  
Quantum Game ◽  
Final State ◽  
The Game Theory ◽  
Initial States ◽  
Quantum Strategy ◽  
Selection Of

In this paper, we extend the quantum game theory of Prisoner’s Dilemma to the N-player case. The final state of quantum game theory of N-player Prisoner’s Dilemma is derived, which can be used to investigate the payoff of each player. As demonstration, two cases (2-player and 3-player) are studied to illustrate the superiority of quantum strategy in the game theory. Specifically, the non-unique entanglement parameter is found to maximize the total payoff, which oscillates periodically. Finally, the optimal strategic set is proved to depend on the selection of initial states.

scholarly journals Universal Masking to Control Healthcare-Associated Transmission of SARS-CoV-2

2021 ◽  
pp. 1-24
Author(s):  
Eliza R. Thompson ◽  
Faith S. Williams ◽  
Pat A. Giacin ◽  
Shay Drummond ◽  
Eric Brown ◽  
...  
Keyword(s):  
Large Scale ◽  
Infection Prevention ◽  
Index Patient ◽  
Field Investigation ◽  
Point Prevalence ◽  
Control Measures ◽  
Prevention Measures ◽  
Infection Control Measures ◽  
Va Health Care System ◽  
Healthcare Associated

Abstract Objective: To assess extent of a healthcare-associated outbreak of SARS-CoV-2 and evaluate effectiveness of infection control measures, including universal masking Design: Outbreak investigation including 4 large-scale point-prevalence surveys Setting: Integrated VA Health Care System with 2 facilities and 330 beds Participants: Index patient and 250 exposed patients and staff Methods: We identified exposed patients and staff and classified them as probable and confirmed cases based on symptoms and testing. We performed a field investigation and assessment of patient and staff interactions to develop probable transmission routes. Infection prevention interventions implemented included droplet and contact precautions, employee quarantine, and universal masking with medical and cloth facemasks. Four point-prevalence surveys of patient and staff subsets were conducted using real-time reverse-transcriptase polymerase chain reaction for SARS-CoV-2. Results: Among 250 potentially exposed patients and staff, 14 confirmed cases of Covid-19 were identified. Patient roommates and staff with prolonged patient contact were most likely to be infected. The last potential date of transmission from staff to patient was day 22, the day universal masking was implemented. Subsequent point-prevalence surveys in 126 patients and 234 staff identified 0 patient cases and 5 staff cases of Covid-19, without evidence of healthcare-associated transmission. Conclusions: Universal masking with medical facemasks was effective in preventing further spread of SARS-CoV-2 in our facility in conjunction with other traditional infection prevention measures.

Adherence to Primary Prevention and Skin Self-Examination Practices by Spanish Melanoma Patients

Dermatology ◽  
2021 ◽  
pp. 1-7
Author(s):  
Irene Torrecilla-Martínez ◽  
Esperanza Manrique-Silva ◽  
Victor Traves ◽  
Celia Requena ◽  
Eduardo Nagore
Keyword(s):  
Primary Prevention ◽  
Cutaneous Melanoma ◽  
Public Health Problem ◽  
Global Public Health ◽  
Prevention Measures ◽  
Online Questionnaire ◽  
Cross Sectional ◽  
History Of ◽  
High Level ◽  
Self Examination

<b><i>Background:</i></b> The incidence of cutaneous melanoma, an important global public health problem, has been increasing over the last several decades. <b><i>Objectives:</i></b> In order to decrease melanoma-related mortality, ways to communicate and implement the correct methods for conducting primary and secondary prevention measures (such as early detection via self-examination) should be investigated. <b><i>Materials and Methods:</i></b> An observational, cross-sectional, retrospective study consisting of 409 patients diagnosed with cutaneous melanoma was conducted. An online questionnaire was created to evaluate knowledge levels, attitudes, and adherence to primary preventive measures and to skin self-examination practices. <b><i>Results:</i></b> The results revealed that even when 43% of the patients perform cutaneous self-examinations, only half of them fully followed the recommendations. Patients aged &#x3c;45 years, female, with a I–II phototype, with an intermediate/high level of education, and with a history of NMSC were more likely to have an adequate degree of knowledge. Moreover, patients aged &#x3c;45 years and with an adequate degree of knowledge more frequently showed an adequate adherence to the primary prevention measures. Finally, patients aged 45–60 years and with an adequate degree of knowledge presented a good adherence to the self-skin examination measures. <b><i>Limitations:</i></b> Possible limitations of this study were memory bias through the influence of age within the study population, and bias due to a greater proportion of subjects with a high education level. <b><i>Conclusion:</i></b> Within the population of patients with melanoma, a high percentage of patients do not rigorously follow the recommended prevention measures. Our study highlights the need to implement awareness in this population to improve the prevention of cutaneous cancer.

Health and Economic Development

2019 ◽  
pp. 257-285
Author(s):  
Mario J. Azevedo ◽  
Akim T. Lukwa ◽  
Olufunke A. Alaba
Keyword(s):  
Economic Development ◽  
Health And Economic Development

scholarly journals Sri Lanka: Physical Reconstruction and Economic Development as Conflict Prevention Factors

2013 ◽  
Vol 19 (69) ◽  
pp. 55-76
Author(s):  
Boženko Đevoić
Keyword(s):  
Economic Development ◽  
Sri Lanka ◽  
External Pressure ◽  
Power Sharing ◽  
Sri Lankan ◽  
Conflict Prevention ◽  
Prevention Measures ◽  
Postconflict Reconstruction ◽  
Post Conflict ◽  
The Government

ABSTRACT This article gives an overview of the 26 year long ethnic conflict in Sri Lanka and examines physical reconstruction and economic development as measures of conflict prevention and postconflict reconstruction. During the years of conflict, the Sri Lankan government performed some conflict prevention measures, but most of them caused counter effects, such as the attempt to provide “demilitarization”, which actually increased militarization on both sides, and “political power sharing” that was never honestly executed. Efforts in post-conflict physical reconstruction and economic development, especially after 2009, demonstrate their positive capacity as well as their conflict sensitivity. Although the Sri Lankan government initially had to be forced by international donors to include conflict sensitivity in its projects, more recently this has changed. The government now practices more conflict sensitivity in its planning and execution of physical reconstruction and economic development projects without external pressure.

scholarly journals The Impact of COVID-19 on Pedestrian Flow Patterns in Urban POIs—An Example from Beijing

2021 ◽  
Vol 10 (7) ◽  
pp. 479
Author(s):  
Yihang Li ◽  
Liyan Xu
Keyword(s):  
Prevention And Control ◽  
Control Period ◽  
Flow Patterns ◽  
Control Measures ◽  
Pedestrian Flow ◽  
Prevention Measures ◽  
Government Control ◽  
Functional Categories ◽  
And Control ◽  
The Impact

The COVID-19 pandemic is a major challenge for society as a whole, and analyzing the impact of the spread of the epidemic and government control measures on the travel patterns of urban residents can provide powerful help for city managers to designate top-level epidemic prevention policies and specific epidemic prevention measures. This study investigates whether it is more appropriate to use groups of POIs with similar pedestrian flow patterns as the unit of study rather than functional categories of POIs. In this study, we analyzed the hour-by-hour pedestrian flow data of key locations in Beijing before, during, and after the strict epidemic prevention and control period, and we found that the pedestrian flow patterns differed greatly in different periods by using a composite clustering index; we interpreted the clustering results from two perspectives: groups of pedestrian flow patterns and functional categories. The results show that depending on the specific stage of epidemic prevention and control, the number of unique pedestrian flow patterns decreased from four before the epidemic to two during the strict control stage and then increased to six during the initial resumption of work. The restrictions on movement are correlated with most of the visitations, and the release of restrictions led to an increase in the variety of unique pedestrian flow patterns compared to that in the pre-restriction period, even though the overall number of visitations decreased, indicating that social restrictions led to differences in the flow patterns of POIs and increased social distance.

Population Mobility in Rural Swaziland: a Research Note

1974 ◽  
Vol 12 (4) ◽  
pp. 673-679 ◽  
Author(s):  
John P. Lea
Keyword(s):  
Economic Development ◽  
Transportation System ◽  
Physical Planning ◽  
Research Note ◽  
Major Determinant ◽  
Population Migration ◽  
Economic Policies ◽  
Population Mobility ◽  
Rural Settlements ◽  
External Forces

Population mobility in its various forms has long been recognised as a major determinant of social and economic policies in many transitional, which is the stage in a country's economic development that has been defined by W. W. Rostow as the ‘transitional era when a society prepares itself – or is prepared by external forces – for sustained growth’1 Although much has been published about population migration in Africa, little research has been conducted into the nature and frequency of periodic visits by rural inhabitants to the main urban centres. These journeys are of particular interest to those who are engaged in the physical planning of rural settlements as they provide a clue to the identification of those amenities and services that may be required in the future, as well as the level of demands upon the local transportation system.

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