Icebergs in the Clouds: the Other Risks of Cloud Computing

Cloud computing is appealing from management and efficiency perspectives, but brings risks both known and unknown. Well-known and hotly-debated information security risks, due to software vulnerabilities, insider attacks, and side-channels for example, may be only the "tip of the iceberg." As diverse, independently developed cloud services share ever more fluidly and aggressively multiplexed hardware resource pools, unpredictable interactions between load-balancing and other reactive mechanisms could lead to dynamic instabilities or "meltdowns." Non-transparent layering structures, where alternative cloud services may appear independent but share deep, hidden resource dependencies, may create unexpected and potentially catastrophic failure correlations, reminiscent of financial industry crashes. Finally, cloud computing exacerbates already-difficult digital preservation challenges, because only the provider of a cloud-based application or service can archive a "live," functional copy of a cloud artifact and its data for long-term cultural preservation. This paper explores these largely unrecognized risks, making the case that we should study them before our socioeconomic fabric becomes inextricably dependent on a convenient but potentially unstable computing model.Comment: 6 pages, 3 figure

An empirical examination of the effects of ethics, disclosure, and signal theory on disciplinary actions within the accounting profession

There has been extensive research examining the relationship between the public mission of the accounting profession and the private interests of its professionals. All professions have been offered a special place within society due to the importance of the functions they perform as well as their stated public missions. In exchange, society delegates specific rights to the professions such as exclusivity of practice, self-discipline, and self-selection of their membership. Existing research suggests that the accounting profession\u27s private interests have potentially encroached upon its public mission. By using the Economic Theory of the Self Regulated Profession, Disclosure Theory, and Signal Theory, testable hypotheses are generated that examine the accounting profession\u27s self-disciplinary function. Specifically, disciplinary actions of the accounting, legal, and medical professions are compared scores of the Defining Issues Test – 2 derived from panel data. Next, Signal Theory is employed to determine if an external mitigate potentially influences the disciplinary actions of the accounting profession. Finally, Disclosure Theory is examined in terms of the number and severity of punishments issued by the legal, medical, and accounting professions. Results of the study find that that the disciplinary actions of the legal, medical, and accounting professions appear benefit their memberships over public mission. However, tests of Signal Theory report increased levels of disciplinary actions during periods of potential external regulation to the profession. Finally, tests of Disclosure Theory suggest that increased transparency of disciplinary actions increase their number and severity

An investigation into pilot and system response to critical in-flight events. Volume 2: Appendix

Materials relating to the study of pilot and system response to critical in-flight events (CIFE) are given. An annotated bibliography and a trip summary outline are presented, as are knowledge surveys with accompanying answer keys. Performance profiles of pilots and performance data from the simulations of CIFE's are given. The paper and pencil testing materials are reproduced. Conditions for the use of the additive model are discussed. A master summary of data for the destination diversion scenario is given. An interview with an aircraft mechanic demonstrates the feasibility of system problem diagnosis from a verbal description of symptoms and shows the information seeking and problem solving logic used by an expert to narrow the list of probable causes of aircraft failure

An investigation into pilot and system response to critical in-flight events, volume 2

Critical in-flight event is studied using mission simulation and written tests of pilot responses. Materials and procedures used in knowledge tests, written tests, and mission simulations are include

High-speed civil transport flight- and propulsion-control technological issues

Technology advances required in the flight and propulsion control system disciplines to develop a high speed civil transport (HSCT) are identified. The mission and requirements of the transport and major flight and propulsion control technology issues are discussed. Each issue is ranked and, for each issue, a plan for technology readiness is given. Certain features are unique and dominate control system design. These features include the high temperature environment, large flexible aircraft, control-configured empennage, minimizing control margins, and high availability and excellent maintainability. The failure to resolve most high-priority issues can prevent the transport from achieving its goals. The flow-time for hardware may require stimulus, since market forces may be insufficient to ensure timely production. Flight and propulsion control technology will contribute to takeoff gross weight reduction. Similar technology advances are necessary also to ensure flight safety for the transport. The certification basis of the HSCT must be negotiated between airplane manufacturers and government regulators. Efficient, quality design of the transport will require an integrated set of design tools that support the entire engineering design team

Innovative learning in action (ILIA) issue six: Innovative practice in assessment

Welcome to this, the sixth edition of Innovative Learning in Action (ILIA) which focuses our attention on the theme of innovative practice in assessment. On the face of it, innovative assessment may be regarded as any form of assessment which involves the application of a new technique, method or tool. However, to quote Graham Mohl (2007): ‘Innovative assessment is not just some trendy new technique dreamt-up purely to save on the amount of time teachers spend on marking, it is a genuine attempt to improve quality of learning in higher education. If we do save time in the process then all the better for our own learning.’ http://www.city.londonmet.ac.uk/deliberation s/assessment/mowl_index.html. The range of work in this edition of ILIA demonstrates how colleagues are readily embracing this fundamental principle. These papers and snapshots show us how contributors are actively exploring, reviewing and modifying their practice to address assessment principles and strategies helping to produce active learners who are reasoning, critical, highly motivated, capable of self-evaluation and equipped with transferable skills to enable them to flourish in the 21st century global economy. Whilst covering diverse and extensive territory both conceptually and practically, in their entirety these works share common ground in embracing the notion of ‘the redistribution of educational power’ (Heron, 1981). Assessment therefore becomes something which is not simply ‘done to’ students, but it is also ‘done by’ and ‘done with’ students (Harris and Bell, 1990) and is as much about enhancing the quality of their learning as it is about measuring their performance. Some of these works may challenge traditional positions and approaches and in so doing I hope they will provide you with a stimulating and thought-provoking opportunity to reflect on practice and student learning

Revisiting the Question: Are Systems of Systems just (traditional) Systems or are they a new class of Systems?

This paper revisits a question asked and debated widely over the past decade: are Systems of Systems (SoS) just traditional systems or are they a new class of systems? Many have argued that SoS are a new class of systems, but little research has been available to provide evidence of this. In this paper we share highlights of recent research to show SoS not only have a different structure than systems and thus need to be engineered differently, but also may possess different attributes for beyond first use properties (the “illities”) such as flexibility and adaptability as compared to systems. By examining historical examples and by using a maritime security SoS as a research test bed, this paper shows that the “ility” called survivability had some design strategies that were directly mapped from systems and also allowed new strategies that only made sense for a SoS (e.g. vigilance). The paper also shows that some design strategies have a different implementation and meaning (e.g. margin) at the level of a system compared to SoS level. We conclude the answer to the question “Are SoS’s just systems?” is both yes and no. They are manifestly systems but possess properties not found in traditional systems. This is shown to true of the meta-property of survivability as applied against a directed SoS

Has globalisation changed the Phillips curve? Firm-level evidence on the effect of activity on prices

The flattening of the Phillips curve observed in the industrial countries has been attributed to globalisation, while the traditional explanation centres on monetary policy credibility. The empirical literature is not conclusive, since macroeconomic data are affected by substantial identification problems. This paper argues that recourse to micro data is needed to identify structural changes in the slope of the Phillips curve. Taking advantage of a unique dataset including about 2,000 Italian firms, the paper tests whether a change in the link between capacity utilisation and prices is confirmed at company level, after controlling for inflation expectations, and whether it is concentrated among those firms that are more exposed to globalisation on either the product or the labour market. The answer is negative in all cases. The results do not support the view that the flattening of the Phillips curve is due to globalisation.Phillips curve, globalisation, inflation, monetary policy

Community Integration and Normalization

Utilizing archived data for 650 individuals, psychosocial variables were examined to elucidate the effect of deinstitutionalization on success of community integration. Deinstitutionalization has been blamed for a host of societal ills including the burgeoning homeless population and for overcrowding in prisons. Many claim that deinstitutionalization has failed and that the chronically severely mentally ill have not become part of their communities. Utilizing extant data on consumers released from Pennsylvania state hospitals as part of a unique initiative, the psychosocial variables of age, race, gender, length of institutionalization, placement following hospitalization and diagnosis were correlated with homelessness, incarceration, or whereabouts known to measure rate of community integration. Of all living consumers released under this initiative, 97% are living in the community

The Evolution of Development Thinking: Theory and Policy

This paper makes an effort to trace the course of development thinking and associated development policy over the past six decades. Section I focuses on the early Post-War Consensus, with theory focused on extensions of classical dualism theory and policy concentrating on creating the pre-conditions for development. Section II traces the increasing awareness of the role of prices, a diminishing reliance on the developmentalist state and an increased reliance on structural adjustment lending associated with IFI conditionality. Section III illuminates the search for "silver bullets" which can be identified as key to the achievement of success. Finally, Section IV presents the author's assessment of where we are now and where we will, or should be, heading in the effort to achieve the third world's basic development objectives.Development Theory, Development Policy