Publications by authors named "Anh Viet Pham"

3 Publications

  • Page 1 of 1

State-level COVID-19 Outbreak and Stock Returns.

Financ Res Lett 2021 Mar 19:102002. Epub 2021 Mar 19.

Department of Accounting, Monash Business School.

We use state-level data to evaluate the connection between outbreaks of COVID-19 and stock returns over the period January-June 2020. We show that daily increases in the number of infected cases, hospitalized cases, and deaths are negatively associated with next day stock returns of firms headquartered in the same state. The relationship is weaker among states with high levels of medical resources and states that are likely to get support from the federal government. In addition, we find that the negative effect is reduced for firms that report an expectation that an outbreak will increase revenues and for firms with a strong corporate social responsibility practice. We believe our study is the first paper to assess cross-sectional stock price reactions to COVID-19 as a function of the state-level impact of the pandemic outbreak.
View Article and Find Full Text PDF

Download full-text PDF

Source Listing
March 2021

Application of relative air pollution index (RAPI)-a new method for aggregate assessment of current air pollution in Cam Pha coal mining area, Quang Ninh province, Vietnam.

Environ Monit Assess 2020 Jun 3;192(7):411. Epub 2020 Jun 3.

Research Center for Environmental Monitoring and Modeling (CEMM), VNU University of Science, 334 Nguyen Trai street, Thanh Xuan district, Hanoi, Vietnam.

In this article, the authors apply the relative air pollution index (RAPI) proposed by Pham Ngoc Ho for aggregate assessment of daily air pollution level (RAPI) using data from 3 daily standards (1, 8, and 24 h) of each country's standard, including Vietnam Technical Regulation QCVN 05:2013/MONRE. By using the automated data of ambient air at 3 monitoring stations in Cam Pha coal mining area, Quang Ninh province in 2018, results of the frequency of pollution by month (f%) have shown that overall, the air quality in dry season (October-March) is worse than that in rainy season (April-September). Results of pollution frequency by month in a year f% also indicate that air pollution in 2018 at 3 stations is mostly at level I (no pollution) with f% ranged from 10 to 58.3%, but pollution level II-IV (light pollution-very heavy pollution) also happened as f% fluctuated from 20 to 42% in some months. Comparing with air quality assessment in 2011-2015 at this area by periodic monitoring equipment of Quang Ninh Center for Environmental Monitoring, results in 2018 have shown that individual index of RAPI is consistent with the current status of air quality with high accuracy. To compare with RAPI, we used VN_AQI index of the Vietnam Environment Administration (VEA). Comparison results show that both indices do not encounter eclipsing effect. However, ambiguous effect occurred in the case of VN_AQI index (warning not suitable for reality in some cases). In addition, advantages and limitations of these two methods have been analyzed and explained in detail.
View Article and Find Full Text PDF

Download full-text PDF

Source Listing
June 2020

Rehabilitation of a patient with cleft lip and palate with an extremely edentulous atrophied posterior maxilla using zygomatic implants: case report.

Cleft Palate Craniofac J 2004 Sep;41(5):571-4

Erasmus Hospital, Université Libre de Bruxelles, Department of Oral and Maxillofacial Surgery, 808 Route de Lennik, 1070 Brussels, Belgium.

Objective: This case report describes the clinical and surgical management of a patient with a unilateral alveolar cleft and associated extremely atrophied totally edentulous maxilla.

Method: Two zygomatic implants and four endosseous oral implants were placed under general anesthesia in a compromised maxilla to rehabilitate a 33-year-old patient with cleft lip and palate. The two specially designed zygomatic implants were utilized to avoid the need for bone grafting in the patient. The final prosthetic rehabilitation was an esthetic and functional maxillary overdenture prosthesis supported by implants.

Results: Preliminary results have shown how dental prostheses supported by endosseous implants in grafted alveolar cleft are a reliable possibility in the dental rehabilitation of this malformation.

Conclusion: The use of zygomatic implants may be considered a reliable alternative to more resource-demanding techniques such as bone grafting in patients with cleft palate.
View Article and Find Full Text PDF

Download full-text PDF

Source Listing
September 2004