Correlating USA COVID-19 cases at epidemic onset days to domestic flights passenger inflows by state

Author(s):  
J. A. Ruiz-Gayosso ◽  
M. del Castillo-Escribano ◽  
E. Hernández-Ramírez ◽  
M. del Castillo-Mussot ◽  
A. Pérez-Riascos ◽  
...  

In the USA, COVID-19 first infection cases were imported by external travelers. At the epidemic onset days, we assume that the disease partially spreads due to domestic passengers air transportation in its densely connected airport network. Taking into account all USA states, we arranged COVID-19 infected cases data in a convenient common time origin timeline as if the beginning of the epidemic would have occurred simultaneously in every state. Looking for a trend between cases and air passengers, we obtained with this timeline very good statistical Pearson and Spearman correlations between accumulated infected cases by state and a positive power of the product [Formula: see text], where [Formula: see text] is the domestic flight passengers (travelers) inflow by state before the epidemic and [Formula: see text] is its population. We also found a good correlation between percentages of urban area by state and their COVID-19 daily new cases growth rates at onset days.

2020 ◽  
Vol 31 (11) ◽  
pp. 2050153
Author(s):  
J. Hernández-Casildo ◽  
E. Hernández-Ramírez ◽  
M. del Castillo-Escribano ◽  
J. A. Ruiz-Gayosso ◽  
M. del Castillo-Mussot ◽  
...  

In every country except China, COVID-19 first infection cases were imported by travelers, which are either people coming back to their own country or visiting foreigners (international or external tourists). In a global and regional phenomenological analysis of COVID-19 spread, we assume that tourism inflow is a trigger mechanism of worldwide dissemination at the pandemic onset days. Taking into account all countries, a convenient common-time origin timeline was employed as if the beginning of the epidemic would have occurred simultaneously in every country. We obtained very good statistical Pearson and Spearman correlations between accumulated infected cases by country and a positive power of the product [Formula: see text], where [Formula: see text] is the tourism inflow before the pandemic and [Formula: see text] is the country population.


2019 ◽  
pp. 71-77
Author(s):  
Vladimir V. Vorozhikhin ◽  
Eugenia L. Moreva ◽  
Vladimir G. Starovoytov ◽  
Igor G. Tyutyunnik

The purpose of this paper is an investigation of LEDs illumination experience at US-based aerodromes with an assessment of its feasibility and its necessity in Russia. The following methods were used: the analysis of aerodrome lighting requirements; the review and the analysis of development features in aerodrome LEDs illumination; the experience analysis of LEDs illumination of US-based aerodromes; the deductive analysis and the assessment synthesis of feasibility and necessity of US experience in LEDs illumination at Russian-based aerodromes. The following results were achieved: – The analysis of issues and opportunities was conducted for development of LEDs illumination at US-based aerodromes and of American experts’ recommendations for its use; – The cases were taken for use and assessment of development in LEDs illumination at US-based aerodromes; – The review and the analysis were conducted in relation to a developing market of LEDs illumination at Russian-based aerodromes. The main conclusion is that the US experience will improve quality and reliability of service provided in air transportation, comfort, and safety of Russian flights, as well as competitiveness of Russian- based airports and airlines (indirectly).


Author(s):  
Rosser Johnson

New Zealand television networks introduced infomercials (30 minute advertisements designed to appear as if they are programmes) in late 1993. Although infomercials date from the 1950s in the USA, they were unknown in this country and quickly came to be seen as a peculiarly “intense” form of hyper-commercial broadcasting. This article aims to sketch out the cultural importance of the infomercial by analysing historical published primary sources (from the specialist and general press) as they reflect the views and opinions that resulted from the introduction of the infomercial. Specifically, it outlines the three main areas where that cultural importance was located. It concludes by analysing the significance of the cultural impact of the infomercial, both within broadcasting and within wider society.


Oryx ◽  
1976 ◽  
Vol 13 (3) ◽  
pp. 281-286 ◽  
Author(s):  
Raymond F. Dasmann

One of the key papers at the Technical Meetings that accompanied the IUCN General Assembly in Zaïre was Dr Dasmann's showing how the emphasis in nature conservation has shifted. No longer can the ‘biosphere people’ – the people of the developed nations who draw on the resources of the whole world to maintain their life-style – simply urge developing countries to ‘protect’ wildlife and establish national parks while at the same time pressing them to cut back their population growth. One extra person in the USA will consume more in energy and materials than 20 extra people in Tanzania. What Dr Dasmann calls the ‘ecosystem people’—those who depend for all their resources on supplies within their local ecosystem – lived in balance with nature and, moreover, did not live impoverished lives, Today we can only solve our world problems by getting back to some better balance, ‘the old partnership with nature that existed without people being aware of it’. What we need, he suggests, is ‘conservation as if people mattered’ and ‘development as if nature mattered’. Nature conservation today demands new life-styles.


2016 ◽  
Vol 63 (1) ◽  
pp. 140-143
Author(s):  
Nigel Spivey
Keyword(s):  
The Body ◽  
The Usa ◽  
Mr Safe ◽  

In 1830 a hoard of Roman silver weighing some 25 kilograms was recovered from farmland near Berthouville, between Rouen and Caen. The silver was mostly worked into drinking vessels and associated items such as jugs, ladles, and bowls. Two statuettes of the god Mercury confirmed this as a votive deposit, as indicated by various dedications from Romano-Gallic pilgrims, notably on nine pieces left by Quintus Domitius Tutus (‘Mr Safe’) in the mid-first century ad. Restored by conservation experts at the Getty Museum, the cache – along with several other treasures from Gaul – has served as witness to ‘Roman luxury’ in an exhibition on tour in the USA. The exhibition's catalogue is a volume that earns its place in any classical library. The Berthouville Silver Treasure and Roman Luxury may not add very much to our understanding of luxuria in Roman discourse: it is left unclear what happens when a ‘luxury object’ is put out of circulation, or at least transferred into the enclosed economy of a sanctuary; and if Mercury was a deity of fortune favoured particularly by freed slaves, perhaps a set of silver spoons was not such an ‘elite’ attribute as supposed? Beyond such factors of value, however, the figurative elaboration on display is striking. At the centre of a libation bowl we find the Lydian queen Omphale in a drunken slumber, exposing her derrière – as if to say ‘Beware how you imbibe’. One wine pitcher shows Achilles leaping aboard his chariot, with the body of Hector trussed in tow; turn the jug round, and there is Achilles again, now himself stricken in battle. On another pitcher, Achilles is among Greeks mourning the death of Patroclus; and there is Hector's corpse in a pair of scales, as the price of his ransom is assessed. We would be impressed to find such ‘sophisticated’ iconography upon objects in use at some stately villa at Rome or around the Bay of Naples. What does its appearance in the moist pastures of Normandy signify – at least for our preconceptions of ‘provincial taste’?


2020 ◽  
Vol 80 (3) ◽  
pp. 321-337 ◽  
Author(s):  
Kevin Nooree Kim ◽  
Ani L. Katchova

Purpose Following the recent global financial crisis, US regulatory agencies issued laws to implement the Basel III accords to ensure the resiliency of the US banking sector. Theories predict that enhanced regulations may alter credit issuance of the regulated banks due to increased capital requirements, but the direction of changes might not be straightforward especially with respect to the agricultural loans. A decrease in credit availability from banks might pose a serious problem for farmers who rely on bank credit especially during economic recessions. The paper aims to discuss these issues. Design/methodology/approach In this study, the impact of Basel III regulatory framework implementation on agricultural lending in the USA is examined. Using panel data of FDIC-insured banks from 2008 to 2017, the agricultural loan volume and growth rates are examined for agricultural banks and all US banks. Findings The results show that agricultural loan growth rates have slowed down, but the amount of agricultural loan volume issuance still remained positive. More detailed examination finds that regulated agricultural banks have decreased both the agricultural loan volume and their loan exposure to the agricultural sector, showing a possible sign of credit crunch. Originality/value This study examines whether the implementation of the Basel III regulation has resulted in changes in agricultural loan issuance by US banks as predicted by the lending channel theory.


1984 ◽  
Vol 6 (2) ◽  
pp. 245-265
Author(s):  
Michel Crozier
Keyword(s):  
The Usa ◽  
As If ◽  

The seasoned traveller landing in the USA three years after Ronald Reagan’s inauguration as president may be forgiven a certain skepticism about America’s constantly changing moods, for once again he is taken by surprise. Strange impressions assail him. Much is just as it was when Jimmy Carter left office, and yet it is as if the clock had been turned back twenty-five years. “Happy days are here again.” It is difficult to put one’s finger on the change, but there is something in the air, something in the way people talk to each other.


2019 ◽  
Vol 75 (1) ◽  
pp. 130-135 ◽  
Author(s):  
Alexis Papathanassis

Purpose The cruise sector has undergone a significant transformation over the past decades, rendering it amongst the fastest growing tourism segments. Nevertheless, cruise holidays represent a relatively small fraction of the entire tourism sector; and so do their economic impacts and externalities. The cruise business has emerged as a result of technological developments in passenger air-transportation and the resulting decline of passenger-shipping. While the increased visibility and over-exposure of its market and product developments may have enabled the re-invention and growth of the cruise sector, they are also amplifiers for its economic and sustainability risks. The purpose of this paper is to relativise both the potential risks and benefits to contribute to more pragmatism in future destination development investments and policies. Design/methodology/approach Based on a brief historical analysis of cruising and current trends, a realistic future is painted where the passenger and capacity growth rates of cruise tourism gradually level out. Findings Moreover, the cruise business becomes increasingly technologically driven to maintain profitability and establish its position in the wider experience portfolio of holiday consumers. Originality/value Traditionally, the relevance argument for cruise tourism research is based on the reported sector's growth rates and corresponding impacts, positive and negative, on destinations. Yet, the mere reproduction of growth rates and passenger numbers in isolation may well foster a misconception and even an overstatement of the cruise sector's significance and role within the wider tourism context. Arguably, the historical analysis and the comparative statistics contained in this paper paint a much-needed realistic picture and contribute to a deeper understanding of the sector's current dynamics.


2019 ◽  
Vol 26 (3) ◽  
pp. 293-312
Author(s):  
Lucas Nogueira Cabral de Vasconcelos ◽  
Orleans Silva Martins

Purpose Investors label high (low) book-to-market (B/M) firms as value (growth) companies. The conventional wisdom supports that growth stocks grow faster than the value ones, creating greater shareholder value. The Purpose of this paper is to analyze how stocks of growth and value companies create value for their shareholders in Brazil, compared to the USA market. For this, the authors analyze three dimensions of return. Design/methodology/approach First, the authors perform portfolios to analyze the growth rates of shareholders’ return. Then, the authors perform regressions to study the explanatory power of the B/M in growth. The data come from Thomson Reuters Eikon database and the Brazilian Institute of Geography and Statistics. The authors select all non-financial firms with available data from 1997 to 2017. Findings The profitability of growth firms is higher than the value ones, in almost every year after the portfolios’ formation, with little variation. Contrary to the findings for the US market, growth companies in Brazil show higher dividend growth than value companies. Research limitations/implications It is possible that the database does not contain complete and entirely reliable accounting data, which may partially affect the results. Practical implications The findings contradict those exposed in the USA. The implications are the inverse of the US study: the duration-based explanation could be a vital factor for the value premium in the Brazilian stock market. Also, the findings support the standard valuation techniques and help the growth rates estimation in the valuation process (top-down approach). Originality/value This study is the first to compare the profitability and dividend growth of growth/value stocks in the Brazilian market. Overall, growth stocks have considerable profitability, and dividend growth compared to value stocks.


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