Case Study: The Automation of an over the Counter Financial Derivatives Transaction Using the CORDA Blockchain

2021 ◽  
pp. 128-137
Author(s):  
Andrei Carare ◽  
Michela Ciampoli ◽  
Giovanni De Gasperis ◽  
Sante Dino Facchini
2020 ◽  
Vol 4 (2) ◽  
pp. 234-240
Author(s):  
Artur Schander ◽  
Andrew Glickman ◽  
Nancy Weber ◽  
Brian Rodgers ◽  
Michael Carney

Introduction: Emergency physicians are trained to treat a variety of ailments in the emergency department (ED), some of which are emergent, while others are not. A common complaint seen in the ED is a sore throat. While most sore throats are easily diagnosed and treated, less common causes are often not considered in the differential diagnoses. Therefore, the purpose of this case study was to present an atypical case of sore throat and discuss differential diagnoses. Case Presentation: The patient was a 45-year-old female who presented to the ED with a three-day history of sore throat that was exacerbated by eating and drinking. The patient was not on any prescription medications, but tried over-the-counter medications for the sore throat without any improvement in symptoms. Review of systems was positive for sore throat, fevers, and chills. Physical examination of her oropharynx revealed mildly dry mucous membranes with confluent plaques and white patchy ulcerative appearance involving the tongue, tonsils, hard palate, and soft palate. Rapid streptococcal antigen, mononucleosis spot test, and KOH test were performed and found to be negative. Discussion: After initial testing was negative, a follow-up complete blood count with differential and complete metabolic profile were ordered. The patient was found to have decreased lymphocytes and platelets. Based upon those results, a diagnosis was made in the ED, the patient was started on medication, and further laboratory workup was ordered to confirm the diagnosis. ED providers should consider non-infectious as well as infectious causes for a sore throat, as this might lead to a diagnosis of an underlying condition.


2016 ◽  
Vol 8 (2) ◽  
pp. 228-247
Author(s):  
William E. Balson ◽  
Gordon Rausser

Purpose Risk-based clearing has been proposed by Rausser et al. (2010) for over-the-counter (OTC) derivatives. This paper aims to illustrate the application of risk-based margins to a case study of the mortgage-backed securities derivative portfolio of the American International Group (AIG) during the period 2005-2008. There exists sufficient publicly available information to examine AIG’s derivative portfolio and how that portfolio would depend on conjectural changes in margin requirements imposed on its OTC derivative positions. Generally, such data on OTC derivative portfolio positions are unavailable in the public domain, and thus, the AIG data provide a unique opportunity for an objective evaluation. Design/methodology/approach This paper uses modern financial methodology to evaluate risk-based margining and collateralization for the major OTC derivative portfolio of the AIG. Findings This analysis reveals that a risk-based margin procedure would have led to earlier margin calls of greater magnitude initially than the collateral calls actually faced by AIG Financial Products (AIGFP). The total margin ultimately required by the risk-based procedure, however, is similar in magnitude to the collateral calls faced by AIGFP by August 2008. It is likely that a risk-based clearing procedure applied to AIG’s OTC contracts would have led to the AIG undertaking significant hedging and liquidation of their OTC positions well before the losses built up to the point they had, perhaps avoiding the federal government’s orchestrated restructuring that occurred in September 2008. Originality/value There has been no published risk-based evaluations of a major OTC portfolio of derivatives for any company, let alone the AIG.


2018 ◽  
Vol 41 (4) ◽  
pp. 453-486
Author(s):  
Rubeena Tashfeen ◽  
Tashfeen Mahmood Azhar

Purpose No systematic models are being used in empirical research that provide assurance for the choice of proxies that are being used. The purpose of this paper is to examine the validity of the proxies being used in empirical research, and as a case study, it focuses on the area of financial derivatives. Design/methodology/approach First, the authors review results of proxies from the financial derivatives literature and follow with empirical tests to confirm the findings from the review. Findings The review shows that proxies provide mixed results. The findings are further supported by the results from empirical tests. It suggests that measures used in the studies related to financial derivatives theory may need to be refined and highlights that no solid bases or tests have been developed for the proxies used to measure the constructs. Research limitations/implications As individual proxies are examined across studies, a meta-regression analysis cannot be used, and there is no other available model to capture this type of examination. The approach adopted has some limitations but provides a basis for examining the reasonableness of proxies as measures of constructs. Originality/value This is the first study that attempts to examine the strength of proxies in capturing related constructs. The methodology is unique to a review of past studies in financial derivatives. It supports the need for developing more rigorous models/bases for the measures being used, and this is an area that has been ignored in empirical research.


Author(s):  
Kranti N. Khekale

Constipation is a common complaint in older adults. Although constipation is not a physiologic consequence of normal aging, decreased mobility and other medical conditions may contribute to its increased prevalence in older adults. The prevalence of constipation rises dramatically with age, with some estimates approaching 50% among adults over 80 years of age. There are a variety of over-the-counter and prescription laxatives available for the treatment of constipation. There are many laxatives sold in the market. They have not been studied in controlled trials to make a recommendation. Its side effect may be harmful to patient. There is no one best evidence-based treatment for chronic constipation in the elderly. this study, shows single case of geriatric patient suffering from constipation wherein  Gandharvahasta tailwas given 10ml orally. The reference of Gandharvahasta tail is  Bhaishajya Ratanavali. Gandharvahasta tail acts as mild laxative with sweet taste, pleasant smell. Gandharvahasta Tail shows significant result with no side effect. It is easily palatable so there is no compliant for taking medicine.


2021 ◽  
Vol 7 ◽  
pp. 205032452110211
Author(s):  
Rosalind Gittins ◽  
Samantha Cole

We describe a case report where buprenorphine was successfully used for the management of kratom ( Mitragyna speciosa) dependency during the Covid-19 pandemic in a specialist community substance misuse treatment service. The individual had a notable iatrogenic dependency on oral over the counter and prescribed opioid medication. She resorted to using kratom as a ‘tea’ to self-detoxify before getting into difficulty. Upon presentation, she disclosed using kratom up to 70 g/day with hourly dosing, in addition to co-codamol (8 mg codeine/500 mg paracetamol tablets) three times a week. Initiation of oral buprenorphine sublingual tablets was complicated due to Covid-19: dispensing arrangements were liberalised from the outset and the dose was incrementally increased, eventually to 24 mg/day. Comorbidities included mental health conditions and chronic pain which improved with buprenorphine treatment and psychotherapy. Further research is required to determine optimal regimens for the management of kratom dependency. This case study adds to the current paucity of published data regarding how to manage such cases in the community setting, which is important since kratom is thought to be increasingly used in the western world.


Energies ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 113
Author(s):  
Hernán Gómez-Villarreal ◽  
Miguel Carrión ◽  
Ruth Domínguez

We formulated a problem faced by a power producer who owns a combined-cycle gas turbine (CCGT) and desires to maximize its expected profit in a medium-term planning horizon. We assumed that this producer can participate in the spot and over-the-counter markets to buy and sell natural gas and electricity. We also considered that the power producer has gas storage available that can be used for handling the availability of gas and the uncertainty of gas prices. A stochastic programming model was used to formulate this problem, where the electricity and gas prices were characterized as stochastic processes using a set of scenarios. The proposed model includes the technical constraints resulting from the operation of the combined cycle power plant and the gas storage and a detailed description of the different markets in which the power producer can participate. Finally, the performance of the proposed model is tested in a realistic case study. The numerical results show that the usage of the gas storage unit allows the power producer to increase its expected profit. Additionally, it is observed that bilateral contracting decisions are not influenced by the presence of the gas storage unit.


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