Shuttle payload S-band communications system

The Shuttle payload S-band communications system design, operational capabilities, and performance are described in detail. System design requirements, overall system and configuration and operation, and laboratory/flight test results are presented. Payload communications requirements development is discussed in terms of evolvement of requirements as well as the resulting technical challenges encountered in meeting the initial requirements. Initial design approaches are described along with cost-saving initiatives that subsequently had to be made. The resulting system implementation that was finally adopted is presented along with a functional description of the system operation. A description of system test results, problems encountered, how the problems were solved, and the system flight experience to date is presented. Finally, a summary of the advancements made and the lessons learned is discussed

Meme - a novel & In search of digital gothic

This doctoral thesis comprises a novel, Meme, which I consider to be in the new genre of digital gothic, and a piece of contextualising research, In Search of Digital Gothic. Meme tells the story of Scarlett, a PhD student in Digital Anthropology who stumbles across the existence of an ancient folk tale that is so disturbing, frightening or dangerous that it has always been forbidden from being shared. Scarlett comes to believe that the tale was leaked onto the internet, and sets out to track it down. In doing so, she discovers it may have played a role in the death of her brother Nathan, whose suicide some years before has left her traumatised and unable to connect with the world around her. In my contextualising research, I explain how I was drawn to the "digital gothic" as a way to express the sense that, beneath the perfect sheen of our twenty-first-century digitally mediated lives, there are troubling and ambiguous forces that border on the uncanny. The Gothic as a genre is a natural correlative or container for such ideas, and my project explores existing manifestations of the digital gothic in both prose fiction and multimedia works. In Part II, "Infectious Media", I examine the behaviour of 'memes', and analyse their unsettling features as 'uncanny replicators' that display 'uncanny metalepsis'. I draw comparisons with Bram Stoker's Dracula (1897), arguing that Dracula is in essence -a meme; and with the ghost stories of M.R. James, in particular "The Mezzotint" (1904), where multimedia objects repeatedly breach their protective frames. Part Ill, "Digital Masks, Digital Ghosts", explores 'presence' in the digital age, with a focus on the haunting possibilities inherent in social media and communications, anonymity and trolling. I use the recent cinematic subgenre of webcam horror (Unfriended, Cam, Host) to examine the notion of the digital ghost. Finally, in Part IV, "Haunted Mazes", I discuss the manifestation of 'uncanny time' and 'interactivity' in the digital gothic, utilising the metaphor of the maze or labyrinth. I use the Jacques Derrida/Mark Fisher concept of 'hauntology' as a frame to examine these themes in the M. R. James ghost story "Mr Humphreys and his Inheritance" (1911), and Charlie Brooker's interactive television episode, Black Mirror: Bandersnatch (2018). Taken together, the novel and the contextual research offer an innovative creative­critical undertaking that nonetheless draws upon an existing tradition of literary work, and resonates meaningfully with the wider culture beyond it

Lucerne for dryland farming systems in the Queensland subtropics

The degraded fertility of cropping soils in the Queensland grain belt can be improved by using lucerne, either in short or longer-term rotations. Research in collaboration with NSW Agriculture to improve the adoption of lucerne in farming systems, includes breeding and commercialising better cultivars. Lucerne “probe sets”, comprising cultivars, accessions and breeder lines, were sown at 5 sites in 1997 to measure their production and persistence and to set genetic ideotype targets for further breeding. Highly winter active lines were the most productive and there were some winter active lines that expressed strong persistence traits. The winter active benchmark cv. Trifecta has been clearly superseded but production by the highly winter active benchmark, cv. Sequel was exceeded by only cv. Rippa and Y9549. Breeding for higher winter activity is a priority for short-term rotation lucernes for the Queensland grain belt. For this, there is a strong existing germplasm base to combine with well-selected accessions

The Development of a Nutrition Screening Tool for Mental Health Settings Prone to Obesity and Cardiometabolic Complications: Study Protocol for the NutriMental Screener

People living with serious mental illness (SMI) experience physical health complications at disproportionate rates to people without an SMI. Unhealthy dietary intake and disordered eating behaviors are key driving factors. There is a lack of valid nutrition-risk screening tools targeted to mental health services, and typically used nutrition-risk screening tools are not suitable for mental health services. This paper details the rationale and study protocol for development and validation of the NutriMental screener, a tool for use in clinical practice to identify service users who are at risk for common nutrition issues experienced by this population group and trigger referral to a specialist clinician. The development process includes five phases. Phase I is the development of nutrition-related domains of interest from screening tools used in mental health services. Phase II involves a literature review and service-user interviews to identify additional domains. Phase III consists of international workshops with relevant clinicians and persons with SMI to gain a consensus on questions to be included in the draft tool. Phase IV involves conducting multinational feasibility and preliminary validation studies. Phase V consists of performing formal validation studies. The development of a nutrition-risk screening tool for mental health services is a necessary step to help rectify the physical-health disparities and life-expectancy gap for people with SMI

Everyone a changemaker? Exploring the moral underpinnings of social innovation discourse through real utopias

The term ‘social innovation’ has come to gather all manner of meanings from policymakers and politicians across the political spectrum. But while actors may unproblematically unite around a broad perspective of social innovation as bringing about (positive) social change, we rarely see evidence of a shared vision for the kind of social change that social innovation ought to bring about. Taking inspiration from methods that recognise the utopian think- ing inherent in the social innovation concept, we draw upon Erik Olin Wright’s concept of ‘real utopias’ to investigate the moral underpinnings inherent in the public statements of Ashoka, one of the most prominent social innovation actors operating in the world today. We seek to animate discussion on the moral princi- ples that guide social innovation discourse through examining the problems that Ashoka is trying to solve through social innov- ation, the world they are striving to create, and the strategies they propose to realise their vision

A New Solid Deuterium Source of Ultra-Cold Neutrons

In polarized neutron decay, the angular correlation between the neutron spin and the direction of emission of the electron is characterized by the coefficient A. Measuring A involves determining the forward-backward asymmetry of the decay beta with respect to the direction of the neutron polarization. The value of A, when combined with measurements of the neutron lifetime, determines the values of the vector and axial vector weak coupling constants, Gv and GA. The value of Gv can also be determined by measurements of superallowed nuclear beta decay and by requiring that the Cabibo-Kobayashi-Maskawi (CKM) mixing matrix be unitary along with the measured value of other elements of the CKM matrix

Evolution, appearance, and occupational success

Visual characteristics, including facial appearance, are thought to play an important role in a variety of judgments and decisions that have real occupational outcomes in many settings. Indeed, there is growing evidence suggesting that appearance influences hiring decisions and even election results. For example, attractive individuals are more likely to be hired, taller men earn more, and the facial appearance of candidates has been linked to real election outcomes. In this article, we review evidence linking physical appearance to occupational success and evaluate the hypothesis that appearance based biases are consistent with predictions based on evolutionary theories of coalition formation and leadership choice. We discuss why appearance based effects are so pervasive, addressing ideas about a "kernel of truth" in attributions and about coalitional psychology. We additionally highlight that appearance may be differently related to success at work according to the types of job or task involved. For example, leaders may be chosen because the characteristics they possess are seen as best suited to lead in particular situations. During a time of war, a dominant-appearing leader may inspire confidence and intimidate enemies while during peace-time, when negotiation and diplomacy are needed, interpersonal skills may outweigh the value of a dominant leader. In line with these ideas, masculine-faced leaders are favored in war-time scenarios while feminine-faced leaders are favored in peace-time scenarios. We suggest that such environment or task specific competencies may be prevalent during selection processes, whereby individuals whose appearance best matches perceived task competences are most likely selected, and propose the general term "task-congruent selection" to describe these effects. Overall, our review highlights how potentially adaptive biases could influence choices in the work place. With respect to certain biases, understanding their origin and current prevalence is important in order to potentially reduce discrimination in the work place

Measurement of the Solar Neutrino Capture Rate by the Russian-American Gallium Solar Neutrino Experiment During One Half of the 22-Year Cycle of Solar Activity

We present the results of measurements of the solar neutrino capture rate in gallium metal by the Russian-American Gallium Experiment SAGE during slightly more than half of a 22-year cycle of solar activity. Combined analysis of the data of 92 runs during the 12-year period January 1990 through December 2001 gives a capture rate of solar neutrinos with energy more than 233 keV of 70.8 +5.3/-5.2 (stat.) +3.7/-3.2 (syst.) SNU. This represents only slightly more than half of the predicted standard solar model rate of 128 SNU. We give the results of new runs beginning in April 1998 and the results of combined analysis of all runs since 1990 during yearly, monthly, and bimonthly periods. Using a simple analysis of the SAGE results combined with those from all other solar neutrino experiments, we estimate the electron neutrino pp flux that reaches the Earth to be (4.6 +/- 1.1) E10/(cm^2-s). Assuming that neutrinos oscillate to active flavors the pp neutrino flux emitted in the solar fusion reaction is approximately (7.7 +/- 1.8) E10/(cm^2-s), in agreement with the standard solar model calculation of (5.95 +/- 0.06) E10/(cm^2-s).Comment: English translation of article submitted to Russian journal Zh. Eksp. Teor. Fiz. (JETP); 12 pages, 5 figures. V2: Added winter-summer difference and 2 reference