scholarly journals Application of the Logistic Model to the COVID-19 Pandemic in South Africa and the United States: Correlations and Predictions

Author(s):  
David H Roberts

We apply the simple logistic model to the four waves of COVID-19 taking place in South Africa over the period 2020~January~1 through 2022 January 11. We show that this model provides an excellent fit to the time history of three of the four waves. We then derive a theoretical correlation between the growth rate of each wave and its duration, and demonstrate that it is well obeyed by the South Africa data. We then turn to the data for the United States. As shown by Roberts (2020a, 2020b), the basic logistic model provides only a marginal fit to the early data. Here we break the data into six "waves," and treat each one separately. For four of the six the logistic model is useful, and we present full results. We then ask if these data provide a way to predict the length of the ongoing Omicron wave in the US (commonly called "wave 4," but the sixth wave as we have broken the data up). Comparison of these data to those from South Arica, and internal comparison of the US data, suggests that this last wave will die out by about 2022-January-20.

Author(s):  
Carter Malkasian

The American War in Afghanistan is a full history of the war in Afghanistan between 2001 and 2020. It covers political, cultural, strategic, and tactical aspects of the war and details the actions and decision-making of the United States, Afghan government, and Taliban. The work follows a narrative format to go through the 2001 US invasion, the state-building of 2002–2005, the Taliban offensive of 2006, the US surge of 2009–2011, the subsequent drawdown, and the peace talks of 2019–2020. The focus is on the overarching questions of the war: Why did the United States fail? What opportunities existed to reach a better outcome? Why did the United States not withdraw from the war?


2018 ◽  
Vol 25 ◽  
pp. 11-21
Author(s):  
Matthew Dotzler

The conflict between Turkey and the Kurds is once again reaching a boiling point. Following the defeat of ISIL in northern Iraq and Syria, Turkey is now concerned that the returning Kurdish militias pose a threat to its national security. The United States, as an ally to both parties, finds itself in a unique position to push for diplomatic solutions and to mediate the conflict before it grows out of control once again. This paper will examine the history of the Turkish-Kurdish conflict, the actors involved, and how US foreign policy can be used to try and deter yet another war in the region.


1966 ◽  
Vol 23 (2) ◽  
pp. 318
Author(s):  
Max Savelle ◽  
Louis Hartz ◽  
Kenneth D. McRae ◽  
Richard M. Morse ◽  
Richard N. Rosecrance ◽  
...  

Author(s):  
Emily Abrams Ansari

The introduction provides an overview of the history of musical Americanism, from the 1920s to the 1970s, in tandem with an assessment of changing attitudes toward American identity in the United States. It introduces scholarly debates surrounding the Cold War politicization of serialism and tonality and describes the various opportunities for work with government exploited by American composers during the 1950s and 1960s. These opportunities included serving as advisers to the State Department, the US Information Agency, and organizations funded by the CIA, as well as touring overseas as government-funded cultural ambassadors. These contexts establish the basis for the book’s argument that the Cold War presented both challenges and opportunities for Americanist composers that would ultimately result in a rebranding of their style.


2015 ◽  
Vol 40 (1) ◽  
pp. 47-86 ◽  
Author(s):  
Or Rabinowitz ◽  
Nicholas L. Miller

How has the United States behaved historically toward friendly states with nuclear weapons ambitions? Recent scholarship has demonstrated the great lengths to which the United States went to prevent Taiwan, South Korea, and West Germany from acquiring nuclear weapons. Yet seemingly on the other side of the ledger are cases such as Israel, South Africa, and Pakistan, where the United States failed to prevent proliferation, and where many have argued that the United States made exceptions to its nonproliferation objectives given conflicting geopolitical goals. A reexamination of the history of U.S. nonproliferation policy toward Israel, South Africa, and Pakistan, based on declassified documents and interviews, finds that these cases are not as exceptional as is commonly understood. In each case, the United States sought to prevent these states from acquiring nuclear weapons, despite geopolitical constraints. Moreover, once U.S. policymakers realized that prior efforts had failed, they continued to pursue nonproliferation objectives, brokering deals to prevent nuclear tests, public declaration of capabilities, weaponization, or transfer of nuclear materials to other states.


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