scholarly journals Panel Associations Between Newly Dead, Healed, Recovered, and Confirmed Cases During COVID-19 Pandemic

2021 ◽  
Author(s):  
Ming Guan
Keyword(s):  
Event Study ◽  
Random Effects ◽  
Negative Binomial ◽  
Control Strategies ◽  
Research Work ◽  
Negative Binomial Regression ◽  
The United States ◽  
The World ◽  
The Usa ◽  
Key Events

Abstract Background Currently, the knowledge of associations among newly recovered cases (NR), newly healed cases (NH), newly confirmed cases (NC), and newly dead cases (ND) can help to monitor, evaluate, predict, control, and curb the spreading of coronavirus disease 2019 (COVID-19). This study aimed to explore the panel associations of ND, NH, and NR with NC. Methods Data from China Data Lab in Harvard Dataverse with China (January 15, 2020 to January 14, 2021), the United States of America (the USA, January 21, 2020 to April 5, 2021), and the World (January 22, 2020 to March 20, 2021) had been analyzed. The main variables included in the present analysis were ND, NH, NR, and NC. Pooled regression, stacked within-transformed linear regression, quantile regression for panel data, random-effects negative binomial regression, and random-effects Poisson regression were conducted to reflect the associations of ND, NH, and NR with NC. Event study analyses were performed to explore how the key events influenced NC. Results Descriptive analyses showed that mean value of ND/NC ratio regarding China was more than those regarding the USA and the World. The results from tentative analysis reported the significant relationships among ND, NH, NR, and NC regarding China, the USA, and the World. Panel regressions confirmed associations of ND, NH, and NR with NC regarding China, the USA, and the World. Panel event study showed that key events influenced NC regarding USA and the World more greatly than that regarding China. Conclusion The findings in this study confirmed the panel associations of ND, NH, and NR with NC in the three datasets. The efficiencies of various control strategies of COVID-19 pandemic across the globe were compared by the regression outcomes. Future direction of research work could explore the influencing mechanisms of the panel associations.

scholarly journals A panel analysis on preventing and controlling efficiency of COVID-19 pandemic

2020 ◽  
Author(s):  
Ming Guan
Keyword(s):  
United States ◽  
Event Study ◽  
United States Of America ◽  
Control Strategies ◽  
Pooled Analysis ◽  
Panel Analysis ◽  
Treatment Efficiency ◽  
The World ◽  
Key Events ◽  
The Relationship

Abstract BACKGROUND: Currently, the globe is making efforts to curb the spreading of coronavirus disease 2019 (COVID-19). However, only a few studies have examined the associations among spreading growth, treatment efficiency, and death increase. This study aimed to examine the associations of COVID-2019 dead cases, healed cases, and recovered cases.METHODS: Data from China Data Lab in Harvard Dataverse with the China (January 22, 2020 to March 18, 2020), United States of America (USA, March 17, 2020 to April 12, 2020), and the world (January 22, 2020 to April 4, 2020) were analyzed. The main variables included in the analysis were the numbers of COVID-2019 total confirmed cases (TC), total dead cases (TD), newly dead cases (ND), newly confirmed cases (NC), newly healed cases (NH), total healed cases (TH), and newly recovered cases (NR). Pooled, dynamic, and event study analyses were conducted to reflect the associations among them.RESULTS: Descriptive analyses showed that NH/NC ratio in China are bigger than NR/NC in USA and the world. Pooled analysis showed that various roles of regions in NH and NR in a specific sample. Dynamic analysis showed significant roles of lags and NC in NH and NR. Panel event study showed that key events influence ND and NH in China significantly and NR in the world rather than NR in USA.CONCLUSION: The findings in this study indirectly confirmed the relationship between spreading growth, treatment efficiency, and death increase. China’s control strategies of COVID-19 pandemic are worth of learning by the globe.

Sandra Ramos Revisited

2020 ◽  
Vol 2 (4) ◽  
pp. 32-54
Author(s):  
Silvia Spitta
Keyword(s):  
United States ◽  
The United States ◽  
Ancient Greek ◽  
Graphic Arts ◽  
Left Behind ◽  
The World ◽  
The Usa ◽  
Political Choices ◽  
The Rich

Sandra Ramos (b. 1969) is one of the few artists to reflect critically on both sides of the Cuban di-lemma, fully embodying the etymological origins of the word in ancient Greek: di-, meaning twice, and lemma, denoting a form of argument involving a choice between equally unfavorable alternatives. Throughout her works she shines a light on the dilemmas faced by Cubans whether in Cuba or the United States, underlining the bad personal and political choices people face in both countries. During the hard 1990s, while still in Havana, the artist focused on the traumatic one-way journey into exile by thousands, as well as the experience of profound abandonment experienced by those who were left behind on the island. Today she lives in Miami and operates a studio there as well as one in Havana. Her initial disorientation in the USA has morphed into an acerbic representation and critique of the current administration and a deep concern with the environmental collapse we face. A buffoonlike Trumpito has joined el Bobo de Abela and Liborio in her gallery of comic characters derived from the rich Cuban graphic arts tradition where she was formed. While Cuba is now represented as a rotten cake with menacing flies hovering over it ready to pounce, a bombastic Trumpito marches across the world stage, trampling everything underfoot, a dollar sign for a face.

Front-line Healthcare Workers in COVID-19: The Way from Elbow-Bump Greeting to Closing Body Bags

2020 ◽  
Author(s):  
Stefan Bittmann
Keyword(s):  
Health Service ◽  
Healthcare Workers ◽  
Well Being ◽  
The United States ◽  
Angiotensin Ii Receptor ◽  
Front Line ◽  
Resource Center ◽  
Research Activities ◽  
The World ◽  
The Usa

COVID-19 is a serious coronavirus disease that is spreading all over the world. As of the date of this publication, 2.834.134 people have been infected with COVID-19 and 197.924 deaths have been recorded in 185 countries (John Hopkins Corona Resource Center, 25th April 2020) [1]. This overwhelming mortality rate requires intensive research activities around the world. To date, the number of deaths per day in the United States is still killing, indicating an uncontrollable state of infection spread. SARS-CoV-2 binds to the angiotensin II receptor in various tissues of the human body, particularly in the oral cavity and tongue. SARS-CoV-2 requires the cheerful TMPRSS2 to activate this inertia. SARS-CoV-2 uses the ACE2 receptor as a gateway to the lungs. The SARS-CoV-2 virus binds with the spike protein to the ACE2 receptor. COVID-19 is more common among African Americans in the USA (Science 10th April 2020). The comfort and the emotional loading capacity of the employees in the health service are key components for the maintenance of the essential health services during the outbreak of the COVID-19 virus (Coronavirus) [2,3]. Hence, it will be important to anticipate the charges linked with this work and to release support for employees in the health service. The supervision and assessment of the psychic health and the well-being of the employees in the health service will be important, just as the efforts to guarantee a successful reunion with colleagues if they are infected.

scholarly journals Statistical models for analyzing count data: predictors of length of stay among HIV patients in Portugal using a multilevel model

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ahmed Nabil Shaaban ◽  
Bárbara Peleteiro ◽  
Maria Rosario O. Martins
Keyword(s):  
Length Of Stay ◽  
Regression Model ◽  
Random Effects ◽  
Count Data ◽  
Negative Binomial ◽  
Negative Binomial Regression ◽  
Comprehensive Approach ◽  
Negative Binomial Regression Model ◽  
Hiv Patients ◽  
Binomial Regression

Abstract Background This study offers a comprehensive approach to precisely analyze the complexly distributed length of stay among HIV admissions in Portugal. Objective To provide an illustration of statistical techniques for analysing count data using longitudinal predictors of length of stay among HIV hospitalizations in Portugal. Method Registered discharges in the Portuguese National Health Service (NHS) facilities Between January 2009 and December 2017, a total of 26,505 classified under Major Diagnostic Category (MDC) created for patients with HIV infection, with HIV/AIDS as a main or secondary cause of admission, were used to predict length of stay among HIV hospitalizations in Portugal. Several strategies were applied to select the best count fit model that includes the Poisson regression model, zero-inflated Poisson, the negative binomial regression model, and zero-inflated negative binomial regression model. A random hospital effects term has been incorporated into the negative binomial model to examine the dependence between observations within the same hospital. A multivariable analysis has been performed to assess the effect of covariates on length of stay. Results The median length of stay in our study was 11 days (interquartile range: 6–22). Statistical comparisons among the count models revealed that the random-effects negative binomial models provided the best fit with observed data. Admissions among males or admissions associated with TB infection, pneumocystis, cytomegalovirus, candidiasis, toxoplasmosis, or mycobacterium disease exhibit a highly significant increase in length of stay. Perfect trends were observed in which a higher number of diagnoses or procedures lead to significantly higher length of stay. The random-effects term included in our model and refers to unexplained factors specific to each hospital revealed obvious differences in quality among the hospitals included in our study. Conclusions This study provides a comprehensive approach to address unique problems associated with the prediction of length of stay among HIV patients in Portugal.

THE ACTIVITIES OF THE USA AND CHINA IN THE REGIONS OF THE WORLD, AFFECTING THE REALIZATION OF RUSSIA'S INTERESTS. Part 1: country interests and activities

2021 ◽  
Vol 1 (10) ◽  
pp. 149-166
Author(s):  
Dmitry V. Gordienko ◽  
Keyword(s):  
United States ◽  
Russian Federation ◽  
The United States ◽  
Asia Pacific ◽  
The Arctic ◽  
The World ◽  
The Usa ◽  
The Russian Federation ◽  
The Military ◽  
The Impact

The paper examines the interests of Russia, the United States and China in the regions of the world and identifies the priorities of Russia's activities in Europe, Central Asia and the Caucasus, the Asia-Pacific region, the Arctic, Africa, the Middle East and Latin America, their comparative assessment with the interests of the United States and China. An approach to assessing the impact of possible consequences of the activities of the United States and China on the realization of Russia's interests is proposed. This makes it possible to identify the priorities of the policy of the Russian Federation in various regions of the world. The results of the analysis can be used to substantiate recommendations to the military-political leadership of our country. It is concluded that the discrepancy between the interests of the United States and China is important for the implementation of the current economic and military policy of the Russian Federation.

A New World Economic order formation

2021 ◽  
pp. 932-950
Author(s):  
Vladislav Vyacheslavovich Emelyanov
Keyword(s):  
Oil And Gas ◽  
World Order ◽  
The United States ◽  
New Order ◽  
The West ◽  
Wide Range ◽  
The World ◽  
The Usa ◽  
World Economic Order ◽  
The Impact

Every few decades, the world order changes due to various geopolitical, economic and other circumstances. For example, as a result of globalization, the world order has undergone significant changes in the last forty years. Globalization has led to the destruction of the postwar world order, as well as to world leadership by the United States and the West. However, in recent decades, as a result of globalization, the U.S. and the West began to cede their leadership to developing countries, so there is now a change in the economic structure of relations in the world system. Today the center of economic growth is in the East, namely in Asia. There are no new superpowers in the world at the moment, but the unipolar world will cease to exist due to the weakening of the U. S. leadership, which will lead to a change in the world order. A new leader, which may replace the U. S., will not have as wide range of advantages as the USA has. Most likely, the essence of the new order will be to unite the largest countries and alliances into blocks, for example, the USA together with the Trans-Pacific Partnership, the EU, etc. The article outlines forecasts of GDP growth rates as well as the global energy outlook; analyzes the LNG market as well as the impact of the pandemic on the global oil and gas market; and lists the characteristics of U. S. geopolitics.

scholarly journals Injury-related falls from bicycles, skateboards, roller skates, and non-motorized scooters in the United States: 2005 - 2014

2017 ◽  
Vol 4 (1) ◽  
pp. 16
Author(s):  
William Milczarski ◽  
Peter Tuckel ◽  
Richard Maisel
Keyword(s):  
Public Health ◽  
New York ◽  
Negative Binomial ◽  
Local Level ◽  
Specific Treatment ◽  
Negative Binomial Regression ◽  
The United States ◽  
Treatment Modalities ◽  
Public Health Officials ◽  
National Databases

Purpose: To provide an updated and comparative analysis of injury-related falls from bicycles, skateboards, roller skates and non-motorized scooters.Methods: The study uses two national databases – the Nationwide Emergency Department Sample and the Nationwide Inpatient Sample  – and subnational databases for New York, California, and Maryland.  Univariate and multivariate analyses (negative binomial regression) are performed to identify effects of age, gender, racial-ethnic background, and region on the incidence of injury-related falls from each of the four devices.Results: The rate of injuries due to falls from bicycles far surpasses the rates due to falls from the other devices.  When a measure of “exposure” is taken into consideration, however, the rate of injuries from skateboards outstrips the rates from bicycles or roller skates.  The profile of patients who are injured from falls from each of the four devices is distinctive.  Asian-Americans are greatly underrepresented among those who suffer a fall-related injury from any of the four devices.  The incidence of injuries attributable to falls varies considerably by geographic region.Conclusions: Public health officials need to be mindful that while certain activities such as scootering might be gaining in popularity, the number of injuries sustained from bicycles still dwarfs the number attributable to falls from skateboards, roller skates, and scooters combined.  Thus special attention needs to be paid to both prevent falls from bicycles and specific treatment modalities.  It is important for public health officials to gather injury data at the local level to allocate prevention and treatment resources more efficiently.

scholarly journals Trends in Opioid Prescribing Among Hemodialysis Patients, 2007–2014

2018 ◽  
Vol 49 (1) ◽  
pp. 20-31 ◽  
Author(s):  
Matthew Daubresse ◽  
G. Caleb Alexander ◽  
Deidra C. Crews ◽  
Dorry L. Segev ◽  
Mara A. McAdams-DeMarco
Keyword(s):  
Low Income ◽  
Negative Binomial ◽  
Negative Binomial Regression ◽  
The United States ◽  
Incidence Rates ◽  
Opioid Prescription ◽  
Opioid Prescribing ◽  
Hispanic Patients ◽  
Estimate Annual Incidence ◽  
National Trends

Background: Hemodialysis (HD) patients frequently experience pain. Previous studies of HD patients suggest increased opioid prescribing through 2010. It remains unclear if this trend continued after 2010 or declined with national trends. Methods: Longitudinal cohort study of 484,745 HD patients in the United States Renal Data System/Medicare data. We used Poisson/negative binomial regression to estimate annual incidence rates of opioid prescribing between 2007 and 2014. We compared prescribing rates with the general US population using IQVIA’s National Prescription Audit data. Outcomes included the following: percent of HD patients receiving an opioid prescription, rate of opioid prescriptions, quantity, days supply, morphine milligram equivalents (MME) dispensed per 100 person-days, and prescriptions per person. Results: In 2007, 62.4% of HD patients received an opioid prescription. This increased to 63.2% in 2010 then declined to 53.7% by 2014. Opioid quantity peaked in 2011 at 73.5 pills per 100 person-days and declined to 62.6 pills per 100 person-days in 2014. MME peaked between 2010 and 2012 then declined through 2014. In 2014, MME rates were 1.8-fold higher among non-Hispanic patients and 1.6-fold higher among low-income patients. HD patients received 3.2-fold more opioid prescriptions per person compared to the general US population and were primarily prescribed oxycodone and hydrocodone. Between 2012 and 2014, HD patients experienced greater declines in opioid prescriptions per person (18.2%) compared to the general US population (7.1%). Conclusion: Opioid prescribing among HD patients declined between 2012 and 2014. However, HD patients continue receiving substantially more opioids than the general US population.

scholarly journals Shareholder nationality among the major European and American defense contractors: an exploratory data analysis

2019 ◽  
Vol 1 (2) ◽  
pp. 36-49
Author(s):  
Mahdi FAWAZ ◽  
Jean BELIN ◽  
Hélène MASSON
Keyword(s):  
United States ◽  
Exploratory Data Analysis ◽  
The United States ◽  
Investment Funds ◽  
Defense Contractors ◽  
The United Kingdom ◽  
The World ◽  
First Results ◽  
The Usa ◽  
Exploratory Data

This article presents the first results of a statistical analysis of the ownership links between the major European and American defence contractors. This approach, centred on the shareholders and subsidiaries of these companies, enables us to explore the depth of the national links (company and country of origin) and the density of the ownership cooperation that exists within Europe, as well as with the rest of the world, particularly the United States. Information about defence contractors’ ownership links is difficult to obtain and precautions must be taken in the interpretation of the results.  In terms of defence contractor shareholders, it would appear first that the national link is strong for Sweden, Spain and France, less so for Germany and Italy, and particularly weak for the United Kingdom. Next, in European terms the links are concentrated on Airbus, MBDA and KNDS and are little developed in other companies. Finally, we observe asymmetrical links with the USA and a significant presence of American investment funds.

scholarly journals Cooperation and Coopetition as a Tools Which Could Improve Leading Startups all over the World

2017 ◽  
Vol 11 (2) ◽  
pp. 228
Author(s):  
Aneta Ejsmont
Keyword(s):  
United States ◽  
The United States ◽  
Good News ◽  
The European Union ◽  
The United Kingdom ◽  
The World ◽  
The Usa ◽  
Leading Position ◽  
Foreign Sale ◽  
The Moment

Building own business is a long-term and laborious process. A person who leads a startup tries to start with building own business by taking first steps toward financial independence. Analyzing conditions in Poland, on average every second startup sells its services abroad, admittedly it is good news, although half of them do not export at all. Half of the startups which export their services and goods generates more than 50% of their revenues outside Poland. Very interesting is the fact that 60% of exporters have conducted their foreign sale since the moment of establishing their business. On which markets do they sell their services? It turns out that the most popular are markets in the European Union (54%), including the United Kingdom 14% and Germany 9%. Only about 25% of Polish startups exports their products and services to the United States. Taking the United States into consideration, in 2008 the USA lost their leading position in the number of startups which are newly created and achieving success in business. Currently in terms of the number of new startups the USA is on a quite distant place after Denmark, Finland, Sweden, Hungary, New Zealand, Israel or Italy. In short, more companies were closed than created, so it was, as a matter of fact, like in Poland. Therefore, the condition to improve the development of startups both from Poland and other countries all the world is to increase cooperation and coopetition.

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