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1.
Singapores First Year of COVID-19: Public Health, Immigration, the Neoliberal State, and Authoritarian Populism ; : 53-77, 2022.
Article in English | Scopus | ID: covidwho-20239007

ABSTRACT

Tuberculosis, HIV/AIDS, and Severe Acute Respiratory Syndrome (SARS) are historically significant cases of infectious disease outbreaks that have posed economic, social, reputational, and moral challenges to Singapore and its much-vaunted model. Until only in recent years, Singapore's neoliberal public health system—focused on efficiency and optimal allocation—had neglected HIV/AIDS and thus the segments of society often associated with it. This neglect had been heightened by prevailing social stigmas and stereotypes. This may shed some light on the COVID-19 pandemic, which elicited rapid, responsive, robust, and inclusive government action where mainstream Singaporean community was concerned, but at the same time failed to recognize and deal with the marginalized and possibly stigmatized segments of society, such as migrant workers, whose badly infected dormitories became an international spectacle of crisis and social injustice. COVID-19 resembled tuberculosis and HIV/AIDS in terms of social stigmatization and even moral panic over the unhealthy elements in society. This resulted in the othering of—and disproportionate concern and hostility towards— teenage "spitters” who threatened to spread tuberculosis through their "defiant” behaviour, homosexuals who threatened to spread HIV/AIDS through their "immoral” behaviour and migrant workers in dormitories who were the foreign bringers of disease. The SARS crisis in 2003 was a "wake-up call” for a less-than-prepared Singapore. A subsequently more proactive government learnt key lessons from the crisis, which were systematically institutionalized in readiness for the next infectious disease outbreak. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2022.

4.
2021 Abu Dhabi International Petroleum Exhibition and Conference, ADIP 2021 ; 2021.
Article in English | Scopus | ID: covidwho-1789274

ABSTRACT

Affected by the Covid-19 pandemic and low oil prices, OPEC members were forced to curtail production. The H oilfield in Iraq commenced production curtailment in early March 2020 and then oil production gradually decreased. By the end of 2020, production was less than one-third of the rate before curtailment. There are multiple sets of oil-bearing formations in the H Oilfield vertically. The developed oil reservoirs have a total of more than three hundreds development wells. The reservoir types are diverse, the relationship among multiphase fluids is complex, and the development methods are different. The reduction of the daily production will inevitably require a comprehensive strategy adjustment to cope with the new situation. Any intentional or unintentional shut-in has a price. Therefore, the key is how to reasonably control the production in many oil reservoirs and re-adjust the oil reservoir development plan at the minimum cost while meeting the overall changing production restriction target for each oil reservoir. In this study, the author established a simple and fast process for judging open and closed wells through years of experience in reservoir dynamic analysis and field management. Step 1: Wells are classified according to production characteristics. For pre-selected wells, some wells with unique functions that need to be opened and those that need to be closed for objective reasons should be excluded. Step 2: Conduct single well cost analysis with reference to production status. Respectively evaluate the performance of the production well under the state of opening and closing. Step 3: Establish the model with economic indicators as the objective function. According to different goals, the model established is slightly different. Step 4: Optimize the best solution based on actual needs. Solve the optimal solution under the target and optimize the number of reasonably configured wells in each reservoir. Through this process, combined with historical and current actual production conditions, different types of oil wells in all reservoirs are classified. Their priorities of reopening are evaluated to meet the needs of other production restriction targets and ensure the smooth transition of oilfield development. © Copyright 2021, Society of Petroleum Engineers

5.
2021 IEEE International Conference on Big Data, Big Data 2021 ; : 5007-5013, 2021.
Article in English | Scopus | ID: covidwho-1730865

ABSTRACT

The COVID-19 pandemic has affected people's lives around the world on an unprecedented scale. We intend to investigate hoarding behaviors in response to the pandemic using large-scale social media data. First, we collect hoarding-related tweets shortly after the outbreak of the coronavirus. Next, we analyze the hoarding and anti-hoarding patterns of over 42,000 unique Twitter users in the United States from March 1 to April 30, 2020, and dissect the hoarding-related tweets by age, gender, and geographic location. We find the percentage of women in both hoarding and anti-hoarding groups is higher than that of the general Twitter user population. Furthermore, using topic modeling, we investigate the opinions expressed towards the hoarding behavior by categorizing these topics according to demographic and geographic groups. We also calculate the anxiety scores for the hoarding and anti-hoarding related tweets using a lexical approach. By comparing their anxiety scores with the baseline Twitter anxiety score, we reveal further insights. The LIWC anxiety mean for the hoarding-related tweets is significantly higher than the baseline Twitter anxiety mean. Interestingly, beer has the highest calculated anxiety score compared to other hoarded items mentioned in the tweets. © 2021 IEEE.

6.
Forest Chemicals Review ; 2021(November-December):138-144, 2021.
Article in English | Scopus | ID: covidwho-1717216

ABSTRACT

With the normalization of COVID-19 prevention and control, it is an important starting point to better improve the effect of COVID-19 prevention and control, promote the healthy development of children's body and mind, and improve the effect of home parenthood to increase the design of sports games for children at home. Based on this, in this paper, combined with the current situation of COVID-19 prevention and control, and on the basis of analyzing the importance of children's home sports games, it is proposed to combine children's actual and physical and mental health development characteristics, follow the principles of moderate exercise and parent-child participation, and continuously improve the effectiveness of children's home sports games design, providing theoretical and practical reference for scientific COVID-19 prevention and control and children's physical and mental health development. © 2021 Kriedt Enterprises Ltd. All right reserved.

7.
Canadian Journal of Chemical Engineering ; : 12, 2021.
Article in English | Web of Science | ID: covidwho-1335991

ABSTRACT

Recent studies have shown that rutin (Quercetin-3-O-rhamnosylglucoside) may have an inhibitory effect on COVID-19. Rutin can be extracted from Tartary buckwheat as an active pharmaceutical ingredient. Nevertheless, its purification is mainly hindered by Kaempferol-3-O-rutinoside (K3R) due to their similar molecular structures. This study intends to propose a simulated moving bed (SMB) chromatography process of rutin and K3R to achieve continuous production. True moving bed (TMB) and SMB models were established to numerically analyze and optimize this process. The system consists of a four-zone SMB with two columns in each zone. The effects of the switch interval, feed flowrate, desorbent flowrate, extract flowrate, raffinate flowrate, and recycle flowrate on the purity and yield of rutin and K3R were investigated and the optimized conditions were chosen as 5 min, 3.5, 40, 34, 9.5, and 24.5 L/min, respectively. Consequently, the purities of 99.64% and 99.25%, and the yields of 99.81% and 99.37% for rutin and K3R were obtained, respectively. The simulation results can provide a guidance for the future industrial application of SF-SMB to separate rutin and K3R.

8.
European Respiratory Journal ; 56, 2020.
Article in English | EMBASE | ID: covidwho-1007228

ABSTRACT

Background: The pandemic of COVID-19 is emerging. Concomitant comorbidities are major cause of death after SARS-Cov2 infection. Multidisciplinary groups involved intervention should be a great potential for better outcomes in severe COVID-19. Method: A multidisciplinary medical team was allocated from our hospital to assist Wuhan at an emergency. According the local policy and guidelines, a centralized ward with severe COVID-19 patients were charged by this team. Cardiovascular, endocrine, respiratory, nutrition and psychology disorders, as well as infection control and rehabilitation were systematically evaluated and treated. The data of interventional effect were retrospectively reviewed. Results: A total of 90 severe COVID-19 patients were evaluated with high incidence of comorbidities and effectively treated by these comprehensive interventions (Table 1). In the 50 consecutive mission days, most of them survived (n=86, 96%), discharged (n=72, 80%) or transferred into wards where mild cases were treated. Only 2 were transferred into critical care. Conclusion: The astonishing outcomes achieved by the comprehensive intervention warrant more concerns about multidisciplinary treatment in COVID-19 fight policy.

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