Optimal Economic Speed and the Impact on Marine GHG Emissions – Saving Money and the World at the Same Time

2012 ◽  
Author(s):  
David G. St. Amand

The purpose of this paper is to provide shipping companies a straightforward tool for assessing the attractiveness of implementing a speed optimization program for their vessels. The curves and analyses provided are not meant to be absolutely accurate but rather to provide a “reasonable” level of accuracy for identifying the potential impact on profitability of a speed optimization program. The author has endeavored to highlight areas where additional technical input or accuracy improvement is appropriate for final decision-making and implementation.

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Naeem Abas ◽  
Esmat Kalair ◽  
Saad Dilshad ◽  
Nasrullah Khan

PurposeThe authors present the impact of the coronavirus disease 2019 (COVID-19) pandemic on community lifelines. The state machinery has several departments to secure essential lifelines during disasters and epidemics. Many countries have formed national disaster management authorities to deal with manmade and natural disasters. Typical lifelines include food, water, safety and security, continuity of services, medicines and healthcare equipment, gas, oil and electricity supplies, telecommunication services, transportation means and education system. Supply chain systems are often affected by disasters, which should have alternative sources and routes. Doctors, nurses and medics are front-line soldiers against diseases during pandemics.Design/methodology/approachThe COVID-19 pandemic has revealed how much we all are connected yet unprepared for natural disasters. Political leaders prioritize infrastructures, education but overlook the health sector. During the recent pandemic, developed countries faced more mortalities, fatalities and casualties than developing countries. This work surveys the impact of the COVID-19 pandemic on health, energy, environment, industry, education and food supply lines.FindingsThe COVID-19 pandemic caused 7% reductions in greenhouse gas (GHG) emissions during global lockdowns. In addition, COVID-19 has affected social fabric, behaviors, cultures and official routines. Around 2.84 bn doses have been administrated, with approximately 806 m people (10.3% of the world population) are fully vaccinated around the world to date. Most developed vaccines are being evaluated for new variants like alpha, beta, gamma, epsilons and delta first detected in the UK, South Africa, Brazil, USA and India. The COVID-19 pandemic has affected all sectors in society, yet this paper critically reviews the impact of COVID-19 on health and energy lifelines.Practical implicationsThis paper critically reviews the health and energy lifelines during pandemic COVID-19 and explains how these essential services were interrupted.Originality/valueThis paper critically reviews the health and energy lifelines during pandemic COVID-19 and explains how these essential services were interrupted.


Author(s):  
Peter Gál ◽  
Miloš Mrva ◽  
Matej Meško

The aim of the paper is to demonstrate the impact of heuristics, biases and psychological traps on the decision making. Heuristics are unconscious routines people use to cope with the complexity inherent in most decision situations. They serve as mental shortcuts that help people to simplify and structure the information encountered in the world. These heuristics could be quite useful in some situations, while in others they can lead to severe and systematic errors, based on significant deviations from the fundamental principles of statistics, probability and sound judgment. This paper focuses on illustrating the existence of the anchoring, availability, and representativeness heuristics, originally described by Tversky & Kahneman in the early 1970’s. The anchoring heuristic is a tendency to focus on the initial information, estimate or perception (even random or irrelevant number) as a starting point. People tend to give disproportionate weight to the initial information they receive. The availability heuristic explains why highly imaginable or vivid information have a disproportionate effect on people’s decisions. The representativeness heuristic causes that people rely on highly specific scenarios, ignore base rates, draw conclusions based on small samples and neglect scope. Mentioned phenomena are illustrated and supported by evidence based on the statistical analysis of the results of a questionnaire.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Krishnadas Nanath ◽  
Ali Sajjad ◽  
Supriya Kaitheri

PurposeUniversity selection in higher education is a complex task for aspirants from a decision-making perspective. This study first aims to understand the essential parameters that affect potential students' choice of higher education institutions. It then aims to explore how these parameters or priorities have changed given the impact of the COVID-19 pandemic. Learning about the differences in priorities for university selection pre- and post-COVID-19 pandemic might help higher education institutions focus on relevant parameters in the post-pandemic era.Design/methodology/approachThis study uses a mixed-method approach, with primary and secondary data (university parameters from the website and LinkedIn Insights). We developed a university selector system by scraping LinkedIn education data of various universities and their alumni records. The final decision-making tool was hosted on the web to collect potential students' responses (primary data). Response data were analyzed via a multicriteria decision-making (MCDM) model. Portal-based data collection was conducted twice to understand the differences in university selection priorities pre- and post-COVID-19 pandemic. A one-way MANOVA was performed to find the differences in priorities related to the university decision-making process pre- and post-COVID-19.FindingsThis study considered eight parameters of the university selection process. MANOVA demonstrated a significant change in decision-making priorities of potential students between the pre- and post-COVID-19 phases. Four out of eight parameters showed significant differences in ranking and priority. Respondents made significant changes in their selection criteria on four parameters: cost (went high), ranking (went low), presence of e-learning mode (went high) and student life (went low).Originality/valueThe current COVID-19 pandemic poses many uncertainties for educational institutions in terms of mode of delivery, student experience, campus life and others. The study sheds light on the differences in priorities resulting from the pandemic. It attempts to show how social priorities change over time and influence the choices students make.


Author(s):  
SUPRIO DAS ◽  
SHAMIK SURAL ◽  
ARUN K. MAJUMDAR

Important soccer tournaments like the World Cup and the European Cup are broadcast to billions of people across the world. Therefore, advertising through billboards surrounding the playing arena in a soccer match is very attractive for promoting the brand image of a company. Analysis of strength and weakness of such an advertisement is helpful for the sponsors since a lot of money is spent on it and due to its potential impact on a large number of viewers at the same time. In this paper, we present a two-stage fuzzy system for analyzing the visual impact of advertisement billboards in soccer telecasts. In the first stage, visual impact of each shot is evaluated. Two parameters, namely, size and duration, of the billboards are considered in the fuzzy rules. After the shot level analysis, results are combined in the second stage to derive an overall visual impact. In both the stages, parameters of the fuzzy set membership functions are tuned using the Particle Swarm Optimization algorithm. The results have been compared against a user survey.


2020 ◽  
Vol 11 (11) ◽  
pp. 20876-20880
Author(s):  
Sheen Job ◽  
Megha Sharma ◽  
Dr Mahendra Singh

Bats are known reservoirs of virulent zoonotic pathogens not known to experience disease. They are known as nature’s pest controllers which are insectivorous and pollinators which are frugivorous in their nature. In the entire ecosystem bats play a vital role in various ways to sustain the diversity at its best. However, recent events have cast great aspersions on the bat behavior and the potential impact it has on Public Health not just in a specified region but  globally. The impact has been devastating and disastrous. The recent COVID 19 pandemic spell, opened the eyes of the scientific community, economists and even governments to work together. A host of issues were brought to light, as to how viral pathogenicity has played havoc with such virulence in the world community.  Numerous studies proved beyond doubt bats act as natural reservoirs for a large number of emerging and re emerging pathogens that other animals and humans can contract. It would be surprising to know that these viruses  are also listed in the bioterrorism list of pathogens. Such diversity shows that the bats are well adapted to the effects of virulent pathogens within their internal milieu. The first report of transmission of a bat virus to human was reported in 1960, it was the Rabies virus belonging to the Lyssa virus genus. SARS, Ebola, Nipah have already proven to be virulent and lethal.(1)   AIM To ascertain the viral dynamics in bats that lead to rapid transmission and infectivity in humans Objectives To understand the characteristics that bats possess, to host virulent pathogens To outline the mechanisms in bats in causing rapid transmission to humans


2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S224-S224
Author(s):  
Sara McNamara

Abstract Part 2 of this symposium will discuss how to maximize the reach and impact of your published work. Researchers are under increasing pressure to demonstrate the impact of their work. First, it is important to clearly articulate the translational impact of your work in the Discussion of your manuscript and briefly in the Abstract. In addition, it is important to know how to increase visibility of your manuscript because university administrators and funding agencies rely heavily on numerical metrics for decision-making. This presentation will look at the needs that metrics serve and provide an overview of how the dominant metric, the Impact Factor, is determined (along with a discussion of the metric’s flaws). The value of newer methodologies and alternative metrics (Altmetrics) will also be discussed. The presentation will also cover practical steps for how researchers can increase the reach and potential impact of their work.


2021 ◽  
Author(s):  
David Sung Choe ◽  
J. Lynne Whitworth ◽  
Ashutosh Kak ◽  
Genevieve Bisset

Abstract The greenhouse-gas (GHG) emissions target set by UNFCCC Paris Accord in 2016 will emerge as a new value driver to project development planning that has the potential to degrade the viability of future offshore oil and gas projects. Integration of GHG emissions and legislated carbon price as new decision drivers to project decision-making will require an in-depth understanding on the overall economic impact of carbon-conscious choices. In this light, the purpose of this paper is to present the impact of such choices on project development planning and implications for Decision Quality (DQ). The case study presents a comparative assessment of total GHG emissions and comparative project economics for a Greenfield project, considering four development concepts: a Reference Case with a "traditional" offshore facility and three hypothetical cases, each of which are defined, evaluated, and compared against the Reference Case. Development of each case is discussed and created to support decision-making during project development planning. The paper presents an economic comparison to demonstrate the importance of including a carbon assessment early in project development planning to assure a thorough concept evaluation. It also demonstrates how a clear outlook on the annual GHG intensity over project life can be vital, for project sanction and mitigation of high carbon cost penalties in the future regulatory landscape. Early understanding of risks associated with carbon price and regulatory enforcement can potentially change how industries analyze the viability of their projects/assets. The paper demonstrates the importance of assessing carbon-conscious options early in the project development planning stage, and how this helps developers to navigate the risks and opportunities in the drive to a lower-carbon society.


2021 ◽  
Vol 9 (2) ◽  
pp. 253-266
Author(s):  
Viknesh R ◽  
Kavitha R Gowda ◽  
Jayanta Banerjee

Owing to the vast number of choices open to customers, they can often feel paralysed in their decision-making. Offering a wide range of options can activate the effect of Decision Paralysis, which delays the client's final decision. The impact of Decision Paralysis can prevail in restaurants. This study reveals the existence of decision paralysis among customers in restaurants when placing an order. The aim is to investigate the prevalence of Decision Paralysis among customers, with particular reference to placing an order in a restaurant and the influence on consumers’ purchase decisions. A survey questionnaire was rolled out using Google forms to customers who have experienced dining in a restaurant. A total of 416 survey responses were collected for data analysis through the convenience sampling method. It was found that, customer purchase decision has been affected by the decision paralysis effect. It was also found that customers experience a dilemma due to tremendous options or choices in the food sector by the service providers. This study was limited to restaurants and in terms of cuisine, with hotels not being considered. Hence, the main limitation is not being able to generalise the findings of this study to the whole of the food catering sector. The study will benefit both scholars and marketing practitioners in understanding the difficulty a customer faces during purchase decision-making.


2018 ◽  
Vol 24 (2) ◽  
pp. 207
Author(s):  
Arturo Izurieta ◽  
Byron Delgado ◽  
Nicolas Moity ◽  
Monica Calvopiña ◽  
Iván Cedeño ◽  
...  

Galápagos is one of the most pristine archipelagos in the world and its conservation relies upon research and sensible management. In recent decades both the interest in, and the needs of, the islands have increased, yet the funds and capacity for necessary research have remained limited. It has become, therefore, increasingly important to identify areas of priority research to assist decision-making in Galápagos conservation. This study identified 50 questions considered priorities for future research and management. The exercise involved the collaboration of policy makers, practitioners and researchers from more than 30 different organisations. Initially, 360 people were consulted to generate 781 questions. An established process of preworkshop voting and three rounds to reduce and reword the questions, followed by a two-day workshop, was used to produce the final 50 questions. The most common issues raised by this list of questions were human population growth, climate change and the impact of invasive alien species. These results have already been used by a range of organisations and politicians and are expected to provide the basis for future research on the islands so that its sustainability may be enhanced.


Author(s):  
Khwanjira Ponsree ◽  
Nathatenee Gebsombut ◽  
Vorrapol Paiyasen ◽  
Tanat Archariyapibal ◽  
Sedthawut Srichiangwang ◽  
...  

The world is being heavily polluted, which is contributing to many natural disasters. Attempts are being made to come up with innovations that lessen the impact of pollution. Electric cars are one such innovation. Here we investigate the awareness of and decision making about buying electric vehicles among 204 young adults. We propose that consumer decisions related to several factors, which include global warming, air pollution, electric cars, travel and socialization, green self-identity of young adults, and intentions on the use of electric cars. This research was able to show that independent variables can affect consumer awareness and decision making towards the purchase or adoption of electric cars.


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