Incentivising Privacy in Cryptocurrencies

Privacy was one of the key points mentioned in Nakamoto's Bitcoin whitepaper, and one of the selling points of Bitcoin in its early stages. In hindsight, however, de-anonymising Bitcoin users turned out to be more feasible than expected. Since then, privacy focused cryptocurrencies such as Zcash and Monero have surfaced. Both of these examples cannot be described as fully successful in their aims, as recent research has shown. Incentives are integral to the security of cryptocurrencies, so it is interesting to investigate whether they could also be aligned with privacy goals. A lack of privacy often results from low user counts, resulting in low anonymity sets. Could users be incentivised to use the privacy preserving implementations of the systems they use? Not only is Zcash much less used than Bitcoin (which it forked from), but most Zcash transactions are simply transparent transactions, rather than the (at least intended to be) privacy-preserving shielded transactions. This paper and poster briefly discusses how incentives could be incorporated into systems like cryptocurrencies with the aim of achieving privacy goals. We take Zcash as example, but the ideas discussed could apply to other privacy-focused cryptocurrencies. This work was presented as a poster at OPERANDI 2018, the poster can be found within this short document

An adolescent girl with signs and symptoms of anaphylaxis and negative immunologic workup: a case report.

BackgroundThe increasing incidence of allergies and allergic reactions among children and adults has become a major public health concern. The etiology of allergic reactions can often be confirmed based on a detailed history and supportive testing. However, there are cases where the underlying factors are more complex and difficult to identify.Case presentationHere we present the case report of a 14-year-old Caucasian  girl with weight loss and a 3-year history of reported angioedema culminating in five intensive care unit admissions over the course of 2.5 months. Her initial clinical presentation included hypotension, dyspnea, and reported facial edema, but allergy and immunological workup were negative. A psychiatric workup identified an eating disorder with food restriction, comorbid major depression, obsessive compulsive disorder, and posttraumatic stress disorder. A close collaboration between Adolescent Medicine, Allergy and Immunology, and Psychiatry helped disentangle medical from psychiatric problems, including fluoxetine medication effects, as well as develop a treatment plan that was acceptable to the family. The angioedema was ultimately diagnosed as factitious disorder.ConclusionsThis patient's treatment highlights the importance of a multidisciplinary team approach, a multifactorial etiology that needed to be addressed by multiple specialists, and the importance of long-term treatment and support

Lande: The Calais 'Jungle' and Beyond

Available Open Access under CC-BY-NC licence. How can Archaeology help us understand our contemporary world? This ground-breaking book reflects on material, visual and digital culture from the Calais “Jungle” – the informal camp where, before its destruction in October 2016, more than 10,000 displaced people lived. LANDE: The Calais 'Jungle' and Beyond reassesses how we understand ‘crisis’, activism, and the infrastructure of national borders in Refugee and Forced Migration Studies, foregrounding the politics of environments, time, and the ongoing legacies of empire. Introducing a major collaborative exhibit at Oxford’s Pitt Rivers Museum, the book argues that an anthropological focus on duration, impermanence and traces of the most recent past can recentre the ongoing human experiences of displacement in Europe today.Available Open Access under CC-BY-NC licence. How can Archaeology help us understand our contemporary world? This ground-breaking book reflects on material, visual and digital culture from the Calais “Jungle” – the informal camp where, before its destruction in October 2016, more than 10,000 displaced people lived. LANDE: The Calais 'Jungle' and Beyond reassesses how we understand ‘crisis’, activism, and the infrastructure of national borders in Refugee and Forced Migration Studies, foregrounding the politics of environments, time, and the ongoing legacies of empire. Introducing a major collaborative exhibit at Oxford’s Pitt Rivers Museum, the book argues that an anthropological focus on duration, impermanence and traces of the most recent past can recentre the ongoing human experiences of displacement in Europe today

OH Planar Laser Induced Fluorescence (PLIF) Measurements for the Study of High Pressure Flames: An Evaluation of a New Laser and a New Camera System

Planar laser induced fluorescence (PLIF) is used by the Combustion Branch at the NASA Glenn Research Center (NASA Glenn) to assess the characteristics of the flowfield produced by aircraft fuel injectors. To improve and expand the capabilities of the PLIF system new equipment was installed. The new capabilities of the modified PLIF system are assessed by collecting OH PLIF in a methane/air flame produced by a flat flame burner. Specifically, the modifications characterized are the addition of an injection seeder to a Nd:YAG laser pumping an optical parametric oscillator (OPO) and the use of a new camera with an interline CCD. OH fluorescence results using the injection seeded OPO laser are compared to results using a Nd:YAG pumped dye laser with ultraviolet extender (UVX). Best settings of the new camera for maximum detection of PLIF signal are reported for the controller gain and microchannel plate (MCP) bracket pulsing. Results are also reported from tests of the Dual Image Feature (DIF) mode of the new camera which allows image pairs to be acquired in rapid succession. This allows acquisition of a PLIF image and a background signal almost simultaneously. Saturation effects in the new camera were also investigated and are reported

Mobile Apps for Visual Research: Affordances and Challenges for Participant-Generated Photography

The incorporation of participant-generated photography in research can be a powerful means of studying participants\u27 perspectives and experiences. Approaches such as photovoice and photo-elicitation that incorporate participant-generated photography are increasingly being used in library and information science to study topics such as information needs, information seeking, and use of library space. This article describes two recent studies that used mobile apps (PixStori and EthOS) to facilitate participant-generated photography and photo-elicitation processes in research exploring the information practices of children and young adults, including the affordances, challenges and practical considerations identified by the researchers. Affordances of these apps within a research context include recordability, immediacy, portability, visibility, and durability. Challenges and practical considerations in using these apps in research settings include data security and storage, device failures, app failures, user instruction, cost, and ethical considerations. Implications for future research in library and information science are also explored

On polarization of vector light beams: origin of Berry phase

When generalized from plane waves to general vector beams, the notion of polarization described by the Stokes parameters turns out to be defined in a momentum-associated system that is fixed by the so-called Stratton vector. As the true intrinsic degree of freedom in the language of quantum mechanics, the polarization of light beams in any fixed momentum-associated system is able to characterize their vectorial feature in the laboratory reference system. The Stratton vector is therefore the degree of freedom to distinguish the vectorial feature of light beams that have the same "polarization". Such an observable effect of the Stratton vector helps to understand why plane waves of the same helicity and the same momentum can be different by a Berry phase. This might be the first time to reveal the physical origin of the Berry phase.Comment: 13 pages and 1 figure. A discussion about the relation between the Poincar\'e vectors in different MAS's is adde

Amyloid Beta peptide's effects on NMDA receptors in PC-12 cells

Abstract only availableAmyloid-Beta peptide (Aß), a causative agent in Alzheimer's disease (AD), is known to deposit on cell membranes, disrupt cell functions, and induce cytotoxic effects including over-production of reactive oxygen species (ROS) and disruption of calcium homeostasis. In this project we develop an immortalized neuronal-like cell line (PC-12 cells) for studies of the complex interaction of Aß with neuronal cell membranes, proteins, and signaling pathways relevant to AD. When stimulated with Nerve Growth Factor, PC12 rat pheochromocytoma cells acquire a neuronal phenotype, and unlike primary cells may be passed indefinitely, allowing investigators convenient continuous study of neuronal pathways relevant to AD. In addition to development of PC12 cells for study of AD related pathways, we investigate how local membrane physical property changes induced by oligomeric Amyloid-Beta 1-42(Aß42) impact on primary functions of membrane proteins, including the N-methyl D-aspartate receptor (NMDA-R) and NADPH oxidase. A better understanding of this complex pathway may provide insight into the development of new therapies for the treatment of AD.College of Engineering Undergraduate Research Optio

Lightning Talks

Public or Perish: Promoting Open Access in Tenure & Promotion, by Lana Mariko Wood InstantILL: Simplifying Content Delivery With or Without Subscriptions, by Tina Baich Positioning an Institutional Repository to Respond to Social Justice Issues, by Sarah Hick