A Secure Reconfigurable System-On-Programmable-Chip Computer System

A System-on-Programmable-Chip (SoPC) architecture is designed to meet two goals: to provide a role-based secure computing environment and to allow for user reconfiguration. To accomplish this, a secure root of trust is derived from a fixed architectural subsystem, known as the Security Controller. It additionally provides a dynamically configurable single point of access between applications developed by users and the objects those applications use. The platform provides a model for secrecy such that physical recovery of any one component in isolation does not compromise the system. Dual-factor authentication is used to verify users. A model is also provided for tamper reaction. Secure boot, encrypted instruction, data, and Field Programmable Gate Array (FPGA) configuration are also explored. The system hardware is realized using Altera Avalon SoPC with a NIOS II processor and custom hardware acting as the Security Controller and a second NIOS II acting as the subject application configuration. A DE2 development kit from Altera hosting a Cyclone II FPGA is used along with a Secure Digital (SD) card and a custom printed circuit board (PCB) containing a second Cyclone II to demonstrate the system. User applications were successfully run on the system which demonstrated the secure boot process, system tamper reaction, dynamic role-based access to the security objects, dual-factor authentication, and the execution of encrypted code by the subject processor. Simulations provided detailed examinations of the system execution. Actual tests were conducted on the physical hardware successfully

A Developmental Model of Trust in Humanoid Robots

Trust between humans and artificial systems has recently received increased attention due to the widespread use of autonomous systems in our society. In this context trust plays a dual role. On the one hand it is necessary to build robots that are perceived as trustworthy by humans. On the other hand we need to give to those robots the ability to discriminate between reliable and unreliable informants. This thesis focused on the second problem, presenting an interdisciplinary investigation of trust, in particular a computational model based on neuroscientific and psychological assumptions. First of all, the use of Bayesian networks for modelling causal relationships was investigated. This approach follows the well known theory-theory framework of the Theory of Mind (ToM) and an established line of research based on the Bayesian description of mental processes. Next, the role of gaze in human-robot interaction has been investigated. The results of this research were used to design a head pose estimation system based on Convolutional Neural Networks. The system can be used in robotic platforms to facilitate joint attention tasks and enhance trust. Finally, everything was integrated into a structured cognitive architecture. The architecture is based on an actor-critic reinforcement learning framework and an intrinsic motivation feedback given by a Bayesian network. In order to evaluate the model, the architecture was embodied in the iCub humanoid robot and used to replicate a developmental experiment. The model provides a plausible description of children's reasoning that sheds some light on the underlying mechanism involved in trust-based learning. In the last part of the thesis the contribution of human-robot interaction research is discussed, with the aim of understanding the factors that influence the establishment of trust during joint tasks. Overall, this thesis provides a computational model of trust that takes into account the development of cognitive abilities in children, with a particular emphasis on the ToM and the underlying neural dynamics.THRIVE, Air Force Office of Scientific Research, Award No. FA9550-15-1-002

New ways of working in acute inpatient care: a case for change

This position paper focuses on the current tensions and challenges of aligning inpatient care with innovations in mental health services. It argues that a cultural shift is required within inpatient services. Obstacles to change including traditional perceptions of the role and responsibilities of the psychiatrist are discussed. The paper urges all staff working in acute care to reflect on the service that they provide, and to consider how the adoption of new ways of working might revolutionise the organisational culture. This cultural shift offers inpatient staff the opportunity to fully utilise their expertise. New ways of working may be perceived as a threat to existing roles and responsibilities or as an exciting opportunity for professional development with increased job satisfaction. Above all, the move to new ways of working, which is gathering pace throughout the UK, could offer service users1 a quality of care that meets their needs and expectations

A Review of Near Shore Fisheries Law & Governance in Fiji

This report provides a snapshot of near shore fisheries law and governance in Fiji as of January 2015. It includes an objective, detailed description and analysis of both the modern legal system based on English common law and the traditional iTaukei system of law and governance, and how they apply to near shore fisheries throughout the country. The report also seeks to clarify the relative balance – and the potential gaps, redundancies, and limitations – between these two governing systems by describing how they are or can be used for day-to-day, practical management of near shore fisheries and coastal resources. Ultimately, this report is intended to shed light on a governance system that, on the one hand, has done well over the past 10-15 years to facilitate a dramatic increase in efforts to improve near shore fisheries management in Fiji; but on the other hand, probably requires a thoughtful update sometime in the next several years, with input from all stakeholders, if it is going to promote durable changes in the way near shore fisheries resources are managed for the benefit of both human welfare and environmental integrity

Attention and automation: New perspectives on mental underload and performance

There is considerable evidence in the ergonomics literature that automation can significantly reduce operator mental workload. Furthermore, reducing mental workload is not necessarily a good thing, particularly in cases where the level is already manageable. This raises the issue of mental underload, which can be at least as detrimental to performance as overload. However, although it is widely recognized that mental underload is detrimental to performance, there are very few attempts to explain why this may be the case. It is argued in this paper that, until the need for a human operator is completely eliminated, automation has psychological implications relevant in both theoretical and applied domains. The present paper reviews theories of attention, as well as the literature on mental workload and automation, to synthesize a new explanation for the effects of mental underload on performance. Malleable attentional resources theory proposes that attentional capacity shrinks to accommodate reductions in mental workload, and that this shrinkage is responsible for the underload effect. The theory is discussed with respect to the applied implications for ergonomics research

Restorative Justice-Informed Moral Acquaintance: Resolving the Dual Role Problem in Correctional and Forensic Practice

The issue of dual roles within forensic and correctional fields has typically been conceptualized as dissonance—experienced by practitioners— when attempting to adhere to the conflicting ethical requirements associated with client well-being and community protection. In this paper, we argue that the dual role problem should be conceptualized more broadly; to incorporate the relationship between the offender and their victim. We also propose that Restorative Justice (RJ) is able to provide a preliminary ethical framework to deal with this common ethical oversight. Furthermore, we unite the RJ framework with that of Ward’s (2013) moral acquaintance model to provide a more powerful approach—RJ informed moral acquaintance—aimed at addressing the ethical challenges faced by practitioners within forensic and correctional roles

Anthropological Differences between Contraception and Natural Family Planning

Almost twenty years ago, Pope John Paul II in his apostolic exhortation Familiaris Consortio called on scholars to study the anthropological and moral differences between the recourse to the natural rhythms of a woman’s menstrual cycle (i.e., natural family planning) and contraception (1). Although natural family planning (NFP) and contraception can both be used to prevent pregnancy, there are conspicuous differences between use of natural methods and contraception. Most people, however, have difficulty in distinguishing what the differences are and in understanding why some religious groups, health professionals, and other members of society consider contraception (but not natural family planning) immoral or problematic. As the title indicates, our focus will be more on anthropological than on moral differences. That is, we do not explicitly address the question, “What is the core criterion for judging the moral rightness or wrongness of contraception?” Nevertheless, our findings on the consequences of contraception and sterilization are quite relevant for moral judgments, even for those who use a consequentialist or proportionalist approach in morals. For example, how moral is it to treat a woman’s fertility/reproductive system as a disease or to alter or destroy it