67 research outputs found

    Food security : the Athenian grain-tax law of 374/3 BC

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    This paper examines the translation of the Athenian Grain-Tax Law established in 374/3 BC, the period often referred to as early Classical antiquity. A particular focus is placed on the potential contribution of 'accounting history' as a means of exploring the use of grain tax to ensure food security. In terms of historic interpretations, the Grain-Tax is a relatively new piece of evidence discovered in the Athenian market place excavations of 1986 and, as yet, not known to have been studied within accounting research. Empirical research for this paper took the form of a hermeneutic analysis. The focus of examination was our translation of a Marble Stele inscribed in Greek with the Athenian Grain-Tax Law of 374/3 BC. This included a linguistic translation by the authors taking into account alternative translations of the Grain-Tax from other disciplines and placing the evidence in context through symbolic interpretations of other artifacts of the time based on fieldwork research. Emphasis was placed on the method of accounting for tax collection depicted by the Grain-Tax. Our interpretation of the tax highlights the challenges of researching the interchangeable nature of grain and coinage as a 'currency' for payment including aspects of measurability alongside accountability and the potential implications of this for the use of the tax system as a means of ensuring food security. Drawing new evidence for accounting research from Classical Athens and further exploring the use of hermeneutics within accounting history as a means to increase the scope of what is viewed as evidence in accounting history

    PEDAGOGICAL DESIGN FOR A CROSS-FUNCTIONAL COURSE IN THE ACCELERATED MBA PROGRAM

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    The sub-prime financial crisis exposed weaknesses in the financial risk management of several prominent firms. A deficient risk management is mainly attributed to the lack of integration of finance with other business disciplines. In this paper, we describe a tested implementation of a cross-functional project that improves students’ understanding of firm-value creation and risk management. While this approach can be implemented in any MBA program, we focus specifically on accelerated MBA programs with tight time constraints. Our methods are different from most other integrated courses in several ways. Our cross-functional project bridges the knowledge gaps of students in the area of finance, even if finance is not their primary area of specialization. Further, our approach creates a virtuous cycle for students, faculty, clients, local banks and institutions, university, and the local community

    The Isom Report - 40th Anniversary Ed. - Fall 2020

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    The official newsletter of the Sarah Isom Center for Women and Gender Studies.https://egrove.olemiss.edu/isom_report/1008/thumbnail.jp

    Hospitality codes and social exchange theory : the Pashtunwali and tourism in Afghanistan

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    The Afghan people are shrouded in rumor, myth and superstition. Drawing upon insights from military personnel, intelligence operatives, journalists and others, this study uses Social Exchange Theory (SET) to frame our understanding of their underpinning cultural code, the Pashtunwali. The study contributes both theoretically and empirically: The nature of the Pashtunwali highlights that SET cannot adequately frame some cultural exchange practices and a hybrid framework for negotiated and reciprocal exchange is presented. Furthermore, contextually, this is the first study that explores a code of hospitality through a social exchange lens to explore potential tourism development. A framework exists upon which commercial activity can be built without altering beliefs, social dynamics or day to day pursuits. For commercial development to be successful, it must yield similar or greater levels of income to those that currently exist, more importantly, traditions of autonomy and self-dependence will affect employment and training within an emergent tourism industry

    Aeroservoelastic Testing of a Sidewall Mounted Free Flying Wind-Tunnel Model

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    A team comprised of the Air Force Research Laboratory (AFRL), Northrop Grumman, Lockheed Martin, and the NASA Langley Research Center conducted three j wind-tunnel tests in the Transonic Dynamics Tunnel to demonstrate active control technologies relevant to large, exible vehicles. In the rst of these three tests, a semispan, aeroelastically scaled, wind-tunnel model of a ying wing SensorCraft vehi- cle was mounted to a force balance to demonstrate gust load alleviation. In the second and third tests, the same wing was mated to a new, multi-degree-of-freedom, sidewall mount. This mount allowed the half-span model to translate vertically and pitch at the wing root, allowing better simulation of the full span vehicle's rigid-body modes. Gust Load Alleviation (GLA) and Body Freedom Flutter (BFF) suppression were successfully demonstrated. The rigid body degrees-of-freedom required that the model be own in the wind tunnel using an active control system. This risky mode of testing necessitated that a model arrestment system be integrated into the new mount. The safe and successful completion of these free-flying tests required the development and integration of custom hardware and software. This paper describes the many systems, software, and procedures that were developed as part of this effort

    Aeroservoelastic Testing of Free Flying Wind Tunnel Models Part 2: A Centerline Supported Fullspan Model Tested for Gust Load Alleviation

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    This is part 2 of a two part document. Part 1 is titled: "Aeroservoelastic Testing of Free Flying Wind Tunnel Models Part 1: A Sidewall Supported Semispan Model Tested for Gust Load Alleviation and Flutter Suppression." A team comprised of the Air Force Research Laboratory (AFRL), Boeing, and the NASA Langley Research Center conducted three aeroservoelastic wind tunnel tests in the Transonic Dynamics Tunnel to demonstrate active control technologies relevant to large, flexible vehicles. In the first of these three tests, a full-span, aeroelastically scaled, wind tunnel model of a joined wing SensorCraft vehicle was mounted to a force balance to acquire a basic aerodynamic data set. In the second and third tests, the same wind tunnel model was mated to a new, two degree of freedom, beam mount. This mount allowed the full-span model to translate vertically and pitch. Trimmed flight at10 percent static margin and gust load alleviation were successfully demonstrated. The rigid body degrees of freedom required that the model be flown in the wind tunnel using an active control system. This risky mode of testing necessitated that a model arrestment system be integrated into the new mount. The safe and successful completion of these free-flying tests required the development and integration of custom hardware and software. This paper describes the many systems, software, and procedures that were developed as part of this effort. The balance and free flying wind tunnel tests will be summarized. The design of the trim and gust load alleviation control laws along with the associated results will also be discussed

    Aeroservoelastic Testing of Free Flying Wind Tunnel Models Part 1: A Sidewall Supported Semispan Model Tested for Gust Load Alleviation and Flutter Suppression

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    of a two part document. Part 2 is titled: "Aeroservoelastic Testing of Free Flying Wind Tunnel Models, Part 2: A Centerline Supported Fullspan Model Tested for Gust Load Alleviation." A team comprised of the Air Force Research Laboratory (AFRL), Northrop Grumman, Lockheed Martin, and the NASA Langley Research Center conducted three aeroservoelastic wind tunnel tests in the Transonic Dynamics Tunnel to demonstrate active control technologies relevant to large, flexible vehicles. In the first of these three tests, a semispan, aeroelastically scaled, wind tunnel model of a flying wing SensorCraft vehicle was mounted to a force balance to demonstrate gust load alleviation. In the second and third tests, the same wing was mated to a new, multi-degree of freedom, sidewall mount. This mount allowed the half-span model to translate vertically and pitch at the wing root, allowing better simulation of the full span vehicle's rigid body modes. Gust load alleviation (GLA) and Body freedom flutter (BFF) suppression were successfully demonstrated. The rigid body degrees-of-freedom required that the model be flown in the wind tunnel using an active control system. This risky mode of testing necessitated that a model arrestment system be integrated into the new mount. The safe and successful completion of these free flying tests required the development and integration of custom hardware and software. This paper describes the many systems, software, and procedures that were developed as part of this effort

    Prevalence of comorbidities in rheumatoid arthritis and evaluation of their monitoring: results of an international, cross-sectional study (COMORA)

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    Background: Patients with rheumatoid arthritis (RA) are at increased risk of developing comorbid conditions.<p></p> Objectives: To evaluate the prevalence of comorbidities and compare their management in RA patients from different countries worldwide.<p></p> Methods Study design: international, cross-sectional. Patients: consecutive RA patients. Data collected: demographics, disease characteristics (activity, severity, treatment), comorbidities (cardiovascular, infections, cancer, gastrointestinal, pulmonary, osteoporosis and psychiatric disorders).<p></p> Results: Of 4586 patients recruited in 17 participating countries, 3920 were analysed (age, 56±13 years; disease duration, 10±9 years (mean±SD); female gender, 82%; DAS28 (Disease Activity Score using 28 joints)–erythrocyte sedimentation rate, 3.7±1.6 (mean±SD); Health Assessment Questionnaire, 1.0±0.7 (mean±SD); past or current methotrexate use, 89%; past or current use of biological agents, 39%. The most frequently associated diseases (past or current) were: depression, 15%; asthma, 6.6%; cardiovascular events (myocardial infarction, stroke), 6%; solid malignancies (excluding basal cell carcinoma), 4.5%; chronic obstructive pulmonary disease, 3.5%. High intercountry variability was observed for both the prevalence of comorbidities and the proportion of subjects complying with recommendations for preventing and managing comorbidities. The systematic evaluation of comorbidities in this study detected abnormalities in vital signs, such as elevated blood pressure in 11.2%, and identified conditions that manifest as laboratory test abnormalities, such as hyperglycaemia in 3.3% and hyperlipidaemia in 8.3%.<p></p> Conclusions: Among RA patients, there is a high prevalence of comorbidities and their risk factors. In this multinational sample, variability among countries was wide, not only in prevalence but also in compliance with recommendations for preventing and managing these comorbidities. Systematic measurement of vital signs and laboratory testing detects otherwise unrecognised comorbid conditions.<p></p&gt

    Copper binding to the Alzheimer’s disease amyloid precursor protein

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    Alzheimer’s disease is the fourth biggest killer in developed countries. Amyloid precursor protein (APP) plays a central role in the development of the disease, through the generation of a peptide called Aβ by proteolysis of the precursor protein. APP can function as a metalloprotein and modulate copper transport via its extracellular copper binding domain (CuBD). Copper binding to this domain has been shown to reduce Aβ levels and hence a molecular understanding of the interaction between metal and protein could lead to the development of novel therapeutics to treat the disease. We have recently determined the three-dimensional structures of apo and copper bound forms of CuBD. The structures provide a mechanism by which CuBD could readily transfer copper ions to other proteins. Importantly, the lack of significant conformational changes to CuBD on copper binding suggests a model in which copper binding affects the dimerisation state of APP leading to reduction in Aβ production. We thus predict that disruption of APP dimers may be a novel therapeutic approach to treat Alzheimer’s disease
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