scholarly journals The impact of non-pharmaceutical interventions, demographic, social, and climatic factors on the initial growth rate of COVID-19: A cross-country study

2021 ◽  
Vol 760 ◽  
pp. 144325
Author(s):  
Jacqueline Duhon ◽  
Nicola Bragazzi ◽  
Jude Dzevela Kong
Keyword(s):  
Growth Rate ◽  
Climatic Factors ◽  
Initial Growth ◽  
Initial Growth Rate ◽  
Country Study ◽  
Cross Country ◽  
The Impact ◽  
Pharmaceutical Interventions

scholarly journals Assessment of Early Mitigation Measures Against COVID-19 in Puerto Rico: March 15-May 15, 2020

2020 ◽  
Author(s):  
Miguel Valencia ◽  
José E. Becerra ◽  
Juan C. Reyes ◽  
Kenneth G. Castro
Keyword(s):  
Growth Rate ◽  
Puerto Rico ◽  
Mitigation Measures ◽  
Test Collection ◽  
Initial Growth ◽  
Rt Pcr ◽  
Epidemic Curve ◽  
Cyclical Trend ◽  
The Impact ◽  
Pharmaceutical Interventions

ABSTRACTBackgroundOn March 15, 2020 Puerto Rico implemented non-pharmaceutical interventions (NPIs), including a mandatory curfew, as part of a state of emergency declaration to mitigate the community transmission of the SARS-CoV-2 virus. The strict enforcement of this curfew was extended through May 25, with a gradual relaxation beginning on May 1. This report summarizes an assessment of these early mitigation measures on the progression of COVID-19 in the island.Methods and FindingsFrom March 15 to May 15, 2020, 41,748 results of molecular (RT-PCR) tests were reported to the Puerto Rico Department of Health. Of these, 1,866 (4.5%) were positive, corresponding to 1,219 individuals with COVID-19 included in the study. We derived the epidemic growth rates (r) and the corresponding reproductive numbers (R) from the epidemic curve of these 1,219 individuals with laboratory-confirmed diagnosis of COVID-19 using their date of test collection as a proxy for symptoms onset. We then compared the observed cases with the R-based epidemic model projections had the mitigation measures not been implemented. Computations were conducted in the R packages forecast, incidence and projections.The number of daily RT-PCR-confirmed cases peaked on March 30 (84 cases), showing a weekly cyclical trend, with lower counts on weekends and a decreasing secular trend since March 30. The initial exponential growth rate (r) was 17.0% (95% CI: 8.4%, 25.6%), corresponding to a doubling of cases every 4.1 days, and to a reproduction number (Ro) of 1.89 (95% CI: 1.41, 2.39). After March 30, the r value reverted to an exponential decay rate (negative) of −3.6% (95% CI: −5.7%, −1.4%), corresponding to a halving of cases every 19.4 days and to an Ro of 0.90 (95% CI: 0.84, 0.97). Had the initial growth rate been maintained, a total of 18,699 (96%CI: 4,113, 87,438) COVID-19 cases would have occurred by April 30 compared with 1,119 observed.ConclusionsOur findings are consistent with very effective implementation of early non-pharmaceutical interventions (NPIs) as mitigation measures in Puerto Rico. These results serve as a baseline to assess the impact of the transition from mitigation to containment stages in Puerto Rico.

Growth phenomenon in amorphous solids irradiated with GeV heavy ions: Electronic-energy-loss dependence of the initial growth rate

1996 ◽  
Vol 54 (22) ◽  
pp. 15690-15694 ◽  
Author(s):  
A. Audouard ◽  
J. Dural ◽  
M. Toulemonde ◽  
A. Lovas ◽  
G. Szenes ◽  
...  
Keyword(s):  
Growth Rate ◽  
Energy Loss ◽  
Heavy Ions ◽  
Amorphous Solids ◽  
Electronic Energy ◽  
Initial Growth ◽  
Initial Growth Rate ◽  
Growth Phenomenon

Growth rate dispersion by initial growth rate distributions and growth rate fluctuations

AIChE Journal ◽  
1987 ◽  
Vol 33 (1) ◽  
pp. 121-129 ◽  
Author(s):  
R. C. Zumstein ◽  
R. W. Rousseau
Keyword(s):  
Growth Rate ◽  
Initial Growth ◽  
Initial Growth Rate

scholarly journals Efficacy of Microarray Profiling Data Combined with QTL Mapping for the Identification of a QTL Gene Controlling the Initial Growth Rate in Rice

2012 ◽  
Vol 53 (4) ◽  
pp. 729-739 ◽  
Author(s):  
Kenji Yano ◽  
Tomonori Takashi ◽  
Shiro Nagamatsu ◽  
Mikiko Kojima ◽  
Hitoshi Sakakibara ◽  
...  
Keyword(s):  
Growth Rate ◽  
Qtl Mapping ◽  
Initial Growth ◽  
Initial Growth Rate ◽  
Microarray Profiling

scholarly journals The impact of mandatory adoption of XBRL on firm’s stock liquidity: a cross-country study

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Wafa Sassi ◽  
Hakim Ben Othman ◽  
Khaled Hussainey
Keyword(s):  
Design Methodology ◽  
Civil Law ◽  
Random Effects Model ◽  
Stock Liquidity ◽  
Content Type ◽  
Business Reporting ◽  
Country Study ◽  
Mandatory Adoption ◽  
Cross Country ◽  
The Impact

Purpose The purpose of this paper is to examine the impact of the mandatory adoption of eXtensible Business Reporting Language (XBRL) on firm’s stock liquidity. Design/methodology/approach Using a random-effects model, this study examines the impact of the mandatory adoption of XBRL (ADOPXBRL) on firm’s stock liquidity of 980 companies pertaining to 13 countries for a period from 2000 to 2016. Findings This paper finds that the mandatory ADOPXBRL affects negatively and significatively Amihud’s (2002) illiquidity ratio. Therefore, mandatory XBRL adoption enhances the firm’s stock liquidity. In addition, this paper finds that the impact of the mandatory ADOPXBRL on firm’s stock liquidity is more pronounced in civil law countries than in common law countries. Originality/value This paper contributes to the literature on the advantage of XBRL especially for the civil law countries by examining the impact of the mandatory ADOPXBRL on firm’s stock liquidity.

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