supercooled fog dispersal for airport operations

1965 ◽  
Vol 46 (6) ◽  
pp. 323-327 ◽  
Author(s):  
W. Boynton Beckwith
Keyword(s):  
United States ◽  
Side Effects ◽  
The United States ◽  
Dry Ice ◽  
Direct Benefits ◽  
Weather Control ◽  
Precipitation Increase ◽  
Schedule Reliability ◽  
Airline Schedule ◽  
Better Than

The capability of dissipating supercooled fogs by aircraft seeding has been recognized since Schaefer experimented in 1946. Except for some localized application of this weather control and some side effects of research aimed at precipitation increase, no organized program of airport weather improvement was established in the United States until 1963. Seeding of supercooled fogs by dry ice was organized during two winters for the purpose of increasing airline schedule reliability at airports subjected to this cold fog. Better than 80% success was attained by this method, resulting in the operation of approximately 200 scheduled flights which would otherwise have been canceled. Typical examples of visibility improvement after less than an hour of seeding are illustrated. The direct benefits resulting from these programs outweigh the costs significantly and suggest that similar fog dispersal operations should be expanded to other areas of the United States which are subjected to supercooled fogs.

scholarly journals Comparative Study on Relative Fossil Energy Carrying Capacity in China and the United States

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2972
Author(s):  
Zhili Zuo ◽  
Jinhua Cheng ◽  
Haixiang Guo ◽  
Yonglin Li
Keyword(s):  
United States ◽  
Carrying Capacity ◽  
The United States ◽  
Reference Area ◽  
Energy Sustainability ◽  
Fossil Energy ◽  
The Relationship ◽  
Population And Environment ◽  
Better Than ◽  
Innovative Concept

Based on resource carrying capacity, this study used the revised theory of relative resource carrying capacity (RRCC) and introduced an innovative concept of relative fossil energy carrying capacity (RFECC), which evaluates the degree of fossil energy sustainability based on the relationship between economy, population, and environment. This study took China and the United States as the study objects, took the whole country as the reference area, and calculated the RFECC of population, economic, and environmental resources from 2000 to 2018. Therefore, based on the comparative analysis, the following conclusions were drawn: (i) there is a big difference in the RFECC between China and the United States, which is manifested in the inverted U-shaped trend in China and the U-shaped trend in the United States; (ii) the relative fossil energy carrying states in China and the United States are different, mainly reflected in the economy and environment; (iii) the gap in RFECC between China and the United States has gradually widened; in general, China’s economic RFECC is better than that of the United States, while environmental RFECC and population RFECC in the United States is better than that of China; and (iv) coal and oil should be used as a breakthrough point for the sustainable fossil energy and sustainable development for China and the United States, respectively.

Understanding and Improving U.S. Financial Sanctions

2017 ◽  
Author(s):  
Jennifer M. Harris ◽  
Robert B. Kahn
Keyword(s):  
United States ◽  
Foreign Policy ◽  
Side Effects ◽  
The United States ◽  
Policy Tools ◽  
The Past

This chapter uses the Iran and Russia cases to understand how modern U.S. financial sanctions operate (including how they interact with traditional tools of foreign policy) and how to better incorporate them into the United States’ standing arsenal of foreign policy tools. It does so by considering three broad sets of questions: First, how has the use of financial sanctions evolved over the past fifteen years? Second, what are the main ways in which financial sanctions impose costs on sanctioned countries? Finally, how should U.S. policymakers alter the use of financial sanctions to maximize their impact, sustain their strength, and minimize problematic side effects?

“You Know Better Than to Ask That”

2017 ◽  
Author(s):  
Matt Eisenbrandt
Keyword(s):  
United States ◽  
The United States ◽  
Public Disclosures ◽  
Better Than

This chapter describes the legal team’s search for the getaway driver, Amado Garay, who testified against Alvaro Saravia and Roberto D’Aubuisson in 1987 but was not seen again. Through a coincidence, this team discovers that Garay is under witness protection in the United States. The legal team begins a complicated and frustrating effort to confirm whether Garay remains in witness protection and how to get in contact with him. The team also suspects that Roberto Santivañez, who made public disclosures about D’Aubuisson and others during the 1980s, could be under protection as well.

Do Employment-Conditional Earnings Subsidies Work?

2018 ◽  
pp. 154-176 ◽  
Author(s):  
Lane Kenworthy
Keyword(s):  
United States ◽  
United Kingdom ◽  
Labor Market ◽  
The United States ◽  
Cash Transfers ◽  
Tax Credits ◽  
Relative Poverty ◽  
The United Kingdom ◽  
Labor Market Regulations ◽  
Better Than

Cash transfers and tax credits to people in paid work but with low earnings are increasingly prominent in affluent countries. How effective are these programs at reducing poverty and increasing employment? The experiences of the United States and United Kingdom suggest that, in an economy with weak unions and limited labor market regulations, an employment-conditional earnings subsidy increases employment among persons at the low end of the labor market but reduces low-end wage levels somewhat. Overall, it appears to boost the absolute incomes of low-end households. Even so, cross-country comparison offers little support for a conclusion that the institutional configuration in these countries, including the employment-conditional earnings subsidy, is especially effective at generating high and rising employment, high and rising incomes among low-end households, or low and decreasing relative poverty rates. Quite a few other affluent nations have done as well as or better than the United Kingdom and the United States in recent decades.

Uncertainties in Vaccination

Uncertainty ◽  
2019 ◽  
pp. 93-106
Author(s):  
Kostas Kampourakis ◽  
Kevin McCain
Keyword(s):  
United States ◽  
Side Effects ◽  
The United States ◽  
Efficacy And Safety ◽  
Real Possibility ◽  
The Past

Whereas vaccines have helped save millions of lives over the past several decades, today there is a significant anti-vaccination (anti-vaxx) movement, especially in the United States, that questions their safety. The problem is that these anti-vaxx arguments focus on rare cases of side effects or—even worse—on unfounded connections between the administration of vaccines and particular conditions such as autism. Such reactions make people overlook the fact that several diseases that in the past killed millions of people have been completely or almost completely eradicated thanks to vaccines. Even though vaccine side effects are a real possibility, one has to weigh the risk of facing those (which is very low and arise in relatively rare cases) against the hundreds or thousands of children who, thanks to the vaccine, will avoid hospitalization or even death. Uncertainties always exist, and we cannot be absolutely certain about the efficacy and safety of any vaccine. But for many of them, there is solid evidence that the problems are rare, and certainly the affected individuals are a lot fewer than those who might suffer and even die from the disease.

scholarly journals Influences on Attitudes Regarding Potential COVID-19 Vaccination in the United States

Vaccines ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 582 ◽  
Author(s):  
Kendall Pogue ◽  
Jamie L. Jensen ◽  
Carter K. Stancil ◽  
Daniel G. Ferguson ◽  
Savannah J. Hughes ◽  
...  
Keyword(s):  
United States ◽  
Structural Equation Modeling ◽  
Side Effects ◽  
Structural Equation ◽  
The United States ◽  
Equation Modeling ◽  
Vaccine Acceptance ◽  
The World ◽  
Short And Long Term

The COVID-19 pandemic continues to ravage the world, with the United States being highly affected. A vaccine provides the best hope for a permanent solution to controlling the pandemic. However, to be effective, a vaccine must be accepted and used by a large majority of the population. The aim of this study was to understand the attitudes towards and obstacles facing vaccination with a potential COVID-19 vaccine. To measure these attitudes a survey was administered to 316 respondents across the United States by a survey corporation. Structural equation modeling was used to analyze the relationships of several factors with attitudes toward potential COVID-19 vaccination. Prior vaccine usage and attitudes predicted attitudes towards COVID-19 vaccination. Assessment of the severity of COVID-19 for the United States was also predictive. Approximately 68% of all respondents were supportive of being vaccinated for COVID-19, but side effects, efficacy and length of testing remained concerns. Longer testing, increased efficacy and development in the United States were significantly associated with increased vaccine acceptance. Messages promoting COVID-19 vaccination should seek to alleviate the concerns of those who are already vaccine-hesitant. Messaging directed at the benefits of vaccination for the United States as a country would address the second predictive factor. Enough time should be taken to allay concerns about both short- and long-term side effects before a vaccine is released.

scholarly journals IL DOLORE, GLI OPPIACEI E I PROBLEMI NEL LORO USO

2018 ◽  
Author(s):  
Alberto Panerai
Keyword(s):  
United States ◽  
Side Effects ◽  
Developed Countries ◽  
The United States ◽  
The World ◽  
Opiate Analgesics ◽  
Transport Factors

Several reasons recently lead to a dramatic increase in the use of opiate analgesics all over the world. Italy has always been a Country where opiates were prescribed less than in other Countries, even those incorrectly called “under-developed Countries”. The reason has to be searched in cultural, regulatory (detention, transport) factors, as well in the caution of practitioners for the side effects of opiates or the fear of inducing addiction. Recently rules have become easier also in Italy and here, aswell as abroad, mainly in the United States, the use of opiates has been rapidly increasing. However, the enthusiasm was followed by several serious doubts that are prompting a reversal of this trend. At present, the suggestion is to use opiates, but to pay a lot of attention to when use them and in which patients. Moreover, this “social” caution, was matched by the observation of a number of problems before unknown that make the use of opiates more difficult than it was previously thought.

scholarly journals A comparison of sleep, depressive symptoms, and parental perceptions between U.S. and Taiwan adolescents with self-reported sleep problems

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Ya-Ting Yang ◽  
Katherine A Kaplan ◽  
Jamie M Zeitzer
Keyword(s):  
United States ◽  
Depressive Symptoms ◽  
Sleep Problems ◽  
The United States ◽  
Preliminary Evaluation ◽  
Sleep Behavior ◽  
Behavioral Choices ◽  
Antecedents And Consequences ◽  
Inadequate Sleep ◽  
Better Than

Abstract Study Objectives Inadequate sleep is pervasive among teens worldwide, resulting in daytime sleepiness and, in some cases, depressive symptoms. In addition to their own behavioral choices, parent perceptions may also play a role in adolescent sleep. This study conducted a preliminary evaluation of the antecedents and consequences of sleep factors among adolescents in the United States and Taiwan. Methods Participants were adolescents with self-reported sleep concerns from academically similar schools in Taiwan (n = 548) and northern California, United States (n = 128). Questionnaires on sleep and mood were administered to both the teens and parents. Results While Taiwanese students’ self-reported sleep behavior was generally better than U.S. students (p < .01), Taiwanese students had higher overall self-reported sleepiness (p < .01). Furthermore, Taiwanese parents reported teen sleep durations of 6.53 ± .827 hours per night during the week (with 45% perceiving this as sufficient), while U.S. parents reported teen sleep durations of 7.22 ± .930 hours (with 27% perceiving this as sufficient). Adolescents in both cohorts had high levels of symptoms consistent with depression (Taiwan: 70%, United States: 62%), which was associated with shorter sleep times for both cohorts and evening chronotype in the Taiwanese, but not U.S., adolescents. Conclusions Some differences exist between Taiwanese and U.S. adolescents, with generally better sleep and less sleepiness reported among students in the United States, and Taiwanese students’ sleep influenced more strongly by chronotype. Furthermore, Taiwanese parents reported less concern about their child’s insufficient sleep, despite the fact that inadequate sleep is strongly associated with depressive symptoms for both cohorts.

Syndrome of Inappropriate Antidiuretic Hormone Associated with Escitalopram Therapy

CNS Spectrums ◽  
2006 ◽  
Vol 11 (6) ◽  
pp. 429-432 ◽  
Author(s):  
Anjali Nirmalani ◽  
Saundra L. Stock ◽  
Glenn Catalano
Keyword(s):  
United States ◽  
Side Effects ◽  
High Risk ◽  
Antidiuretic Hormone ◽  
Side Effect ◽  
Parent Compound ◽  
The United States ◽  
Side Effect Profile ◽  
Significant Side Effect ◽  
Risk Patients

ABSTRACTEscitalopram is the selective serotonin reuptake inhibitor (SSRI) most recently approved for use in the United States. It is structurally related to citalopram, but is felt to have a more tolerable side-effect profile than its parent compound. Side effects are not generally serious and include headache, diarrhea, and nausea. While hyponatremia and the syndrome of inappropriate antidiuretic hormone (SIADH) have been associated with treatment with other SSRIs, there has only been one case of escitalopram-induced SIADH reported in the literature to date. We now report another case of a patient who developed SIADH after being treated with escitalopram for 4 weeks. The patient's hyponatremia improved following the discontinuation of escitalopram. Clinicians should be aware of this uncommon but significant side effect of SSRIs and monitor high-risk patients for the development of SIADH.

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