The Explanatory and Predictive Power of Non Two-Stage-Probability Theories of Decision Making Under Ambiguity

Representing ambiguity in the laboratory using a Bingo Blower (which is transparent and not manipulable) and asking the subjects a series of allocation questions (which are more efficient than pairwise choice questions), we obtain data from which we can estimate by maximum likelihood methods (with explicit assumptions about the errors made by the subjects) a significant subset of the empirically relevant models of behaviour under ambiguity, and compare their relative explanatory and predictive abilities. Our results suggest that not all recent models of behaviour represent a major improvement in explanatory and predictive power, particularly the more theoretically sophisticated ones.Alpha Model, Ambiguity, Bingo Blower, Choquet Expected Utility, Contraction Model, Rank Dependent Expected Utility, Subjective Expected Utility,Vector Expected Utility.

The Explanatory and Predictive Power of Non Two-Stage-Probability Theories of Decision Making Under Ambiguity

Representing ambiguity in the laboratory using a Bingo Blower (which is transparent and not manipulable) and asking the subjects a series of allocation questions (which are more efcient than pairwise choice questions), we obtain data from which we can estimate by maximum likelihood methods (with explicit assumptions about the errors made by the subjects) a signicant subset of the empirically relevant models of behaviour under ambiguity, and compare their relative explanatory and predictive abilities. Our results suggest that not all recent models of behaviour represent a major improvement in explanatory and predictive power, particularly the more theoretically sophisticated ones.Alpha Model, Ambiguity, Bingo Blower, Choquet Expected Utility, Contraction Model, Rank Dependent Expected Utility, Subjec tive Expected Utility,Vector Expected Utility.

The interaction of a high-current, relativistic electron beam with a plasma

Imperial Users onl

Re-Inventing the Public Sphere: Critical Theory, Social Responsibility, Schools, and the Press.

This study examines the contemporary discourses of journalism and pedagogy from the standpoint of critical theory to assess the impact of technocratic rationality and instrumental logic on the practices of communication and education. It is premised on the observation that, spurred by the imperatives of trans-national capital accumulation, privatization inimical to democratic interests has begun to colonize public education. The study represents an effort to reactivate a concept and rhetoric of social responsibility that would animate a project of reclaiming cultural space to be occupied by a public sphere, in a struggle analagous to that waged against feudalism and monarchical Divine Right. . The study argues that communication and education, the essential minima of language, are the basic elements of all cultural development. It makes the case that, by deploying artificial antinomies, education and communication techno-bureaucracy conceals fundamental similarities between the projects of journalism and pedagogy at the levels of both theory and practice--with respect to their complementary roles in enabling citizen participation and appropriating social knowledge in democratic culture--in order to better facilitate reproduction of dominant corporatist ideologies. Taking as the paradigm case the U.S. Supreme Court\u27s 1968 decision in the matter of Hazelwood School District v. Kuhlmeier, the study applies a Foucauldian analytic to evaluate both the Court\u27s decision and responses to it in mainstream press editorials, press industry trade and association periodicals, and journalism reviews. It finds mainstream acceptance on the grounds of its representation of real world conditions, equivocal balance in the trades, and resistance themes in the reviews. The study then thematizes the operation of techno-bureaucratic rationality in the decline of the bourgeois public sphere, and responds to critics who have disparaged social responsibility theory. Finally, it argues for the relevance of such a theory, and explores its implications as a rationale for educational praxis based on the public sphere as counterpoise to the hegemony of state corporatism. Suggestions for further research on the impact potential of desk-top publishing installed in communities, condominium-style, and prepared for by teaching journalistic praxis for a democratic local press, are proffered

Recurrent tetanus

It is, perhaps, not widely known that tetanus may recur in the same individual. Tetanus may recur in 0.5 - 1.0% of cases, months or years after the initial infection. A review of the literature uncovered 98 cases of recurrent tetanus reported to date. Three cases of recurrent tetanus encountered in Malta between 1954 and 1965 are presented. Recurrent tetanus presents important clinical problems. The purpose of this paper is to report these three cases and to discuss the possible underlying etiological factors and therapeutic problems of recurrent tetanus. The details are taken from the records of St. Luke's Hospital, Malta.peer-reviewe

Impact of Water Recovery from Wastes on the Lunar Surface Mission Water Balance

Future extended lunar surface missions will require extensive recovery of resources to reduce mission costs and enable self-sufficiency. Water is of particular importance due to its potential use for human consumption and hygiene, general cleaning, clothes washing, radiation shielding, cooling for extravehicular activity suits, and oxygen and hydrogen production. Various water sources are inherently present or are generated in lunar surface missions, and subject to recovery. They include: initial water stores, water contained in food, human and other solid wastes, wastewaters and associated brines, ISRU water, and scavenging from residual propellant in landers. This paper presents the results of an analysis of the contribution of water recovery from life support wastes on the overall water balance for lunar surface missions. Water in human wastes, metabolic activity and survival needs are well characterized and dependable figures are available. A detailed life support waste model was developed that summarizes the composition of life support wastes and their water content. Waste processing technologies were reviewed for their potential to recover that water. The recoverable water in waste is a significant contribution to the overall water balance. The value of this contribution is discussed in the context of the other major sources and loses of water. Combined with other analyses these results provide guidance for research and technology development and down-selection

Dynamic automata in Larva

As computer systems become larger and more sophisticated, they bring about an increased level of possible execution paths and environment configurations, which, generally, cannot be reliably catered for by testing due to its inherent lack of coverage. As such, many developers are turning onto runtime software verification to be able to provide higher system quality assurance, intercepting undiscovered bugs as they arise. However, sophisticated systems tend to involve large specification properties and thus pose a considerable overhead when the states of such properties are fully enumerated to perform runtime verification. The problem is even more intricate with infinite-state properties where enumeration is not possible. A solution to this issue is through the use of on-the-fly state generation techniques where the next state is dynamically computed at runtime. In this paper, we present dLarva — an extension of the Larva runtime verification tool supporting on-the-fly state-generating automata. This enables the definition of automata in a symbolic manner while also making it possible to traverse infinite state properties. To demonstrate the possibilities of dLarva, we provide an implementation of dLarva that accepts properties using regular expressions which are dynamically evaluated at runtime using derivatives. This implementation is used as the basis for a simple rule-based intrusion detection system for the AnomicFTPD FTP server.peer-reviewe

Curcuma alismatifolia vase life

Cut curcuma stem has a reported vase life of 7 to 21 days and this difference in vase life is probably due to a combination of different factors such as growing conditions and postharvest treatments. However, the cut flower industry needs key postharvest information for new species and cultivars to be able to effectively market the flowers. The objectives of this study was to evaluate the effect of commercial hydrator and holding solutions, commercial growth regulator formulation, floral foam, ethylene and silver thiosulfate (STS) on the postharvest handling of C. alismatifolia cultivars. Control treatment (deionized water) had better vase life than the combinations of the commercial hydrator for 4h and commercial holding solution for 44h. Floral foam reduced vase life to 17 days from 23 days for the control treatment. The growth regulators gibberellin plus benzyladenine (GA4+7 + BA) had a positive effect on the fresh weight keeping parameter, but further studies are necessary. STS did not improve vase life, nor did ethylene at 1 µL L-1 reduce it. The curcuma cultivars tested were not positively affected by vase solution composition and had an average vase life in deionized water of 21 days

1989 Convocation

Opening Selections: Gustav Holt Processional: Jean Joseph Mouret Welcome: Dr. John Peoples, Director, Fermi National Accelerator Laboratory; Dr. Stephanie Pace Marshall, Director; Mike Peil, Student Council President Introductions: Dr. Stephanie Pace Marshall Musical Selections: LeRoy Anderson Keynote Speaker: Dr. Charles Brown, Scientist, Fermi National Accelerator Laboratory Recessional: Charles Marie Wido

Breast Reconstruction and the Covid-19 Pandemic: Adapting Practice

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