Current collection by high voltage anodes in near ionospheric conditions

The authors experimentally identified three distinct regimes with large differences in current collection in the presence of neutrals and weak magnetic fields. In magnetic field/anode voltage space the three regions are separated by very sharp transition boundaries. The authors performed a series of laboratory experiments to study the dependence of the region boundaries on several parameters, such as the ambient neutral density, plasma density, magnetic field strength, applied anode voltage, voltage pulsewidth, chamber material, chamber size and anode radius. The three observed regimes are: classical magnetic field limited collection; stable medium current toroidal discharge; and large scale, high current space glow discharge. There is as much as several orders of magnitude of difference in the amount of collected current upon any boundary crossing, particularly if one enters the space glow regime. They measured some of the properties of the plasma generated by the breakdown that is present in regimes II and III in the vicinity of the anode including the sheath modified electrostatic potential, I-V characteristics at high voltage as well as the local plasma density

The Future Of The Valuation Profession

The aim of this research was to explore the future of the property profession generally and the role of the Valuer in particular, and how the profession could maintain and increase relevance and currency, and set an agenda to support employers in attracting and retaining a more diverse talent pool to run the businesses of the future. This report presents the findings of the research project that investigates extant literature on the issues and challenges faced by the current valuation profession

Natural Suppression of Higgsino-Mediated Proton Decay in Supersymmetric SO(10)

In supersymmetric Grand Unified Theories, proton decay mediated by the color--triplet higgsino is generally problematic and requires some fine--tuning of parameters. We present a mechanism which naturally suppresses such dimension 5 operators in the context of SUSY $SO(10)$. The mechanism, which implements natural doublet--triplet splitting using the adjoint higgs, converts these dimension 5 operators effectively into dimension 6. By explicitly computing the higgs spectrum and the resulting threshold uncertainties we show that the successful prediction of $\sin^2\theta_W$ is maintained {\it as a prediction} in this scheme. It is argued that only a weak suppression of the higgsino mediated proton decay is achievable within SUSY $SU(5)$ without fine--tuning, in contrast to a strong suppression in SUSY $SO(10)$.Comment: 39 pages (3 Feynman graphs not included), in Plain LaTeX, BA-93-2

A Genome-Wide Association Study of Neuroticism in a Population-Based Sample

Neuroticism is a moderately heritable personality trait considered to be a risk factor for developing major depression, anxiety disorders and dementia. We performed a genome-wide association study in 2,235 participants drawn from a population-based study of neuroticism, making this the largest association study for neuroticism to date. Neuroticism was measured by the Eysenck Personality Questionnaire. After Quality Control, we analysed 430,000 autosomal SNPs together with an additional 1.2 million SNPs imputed with high quality from the Hap Map CEU samples. We found a very small effect of population stratification, corrected using one principal component, and some cryptic kinship that required no correction. NKAIN2 showed suggestive evidence of association with neuroticism as a main effect (p<10(-6)) and GPC6 showed suggestive evidence for interaction with age (p approximate to 10(-7)). We found support for one previously-reported association (PDE4D), but failed to replicate other recent reports. These results suggest common SNP variation does not strongly influence neuroticism. Our study was powered to detect almost all SNPs explaining at least 2% of heritability, and so our results effectively exclude the existence of loci having a major effect on neuroticism

Wave Energy Amplification in a Metamaterial based Traveling Wave Structure

We consider the interaction between a particle beam and a propagating electromagnetic wave in the presence of a metamaterial. We show that the introduction of a metamaterial gives rise to a novel dispersion curve which determines a unique wave particle relationship, via the frequency dependence of the metamaterial and the novel ability of metamaterials to exhibit simultaneous negative permittivity and permeability. Using a modified form of Madey's theorem we find that the novel dispersion of the metamaterial leads to a amplification of the EM wave power

Deep Brain Stimulation of the Subthalamic Nucleus Does Not Affect the Decrease of Decision Threshold during the Choice Process When There Is No Conflict, Time Pressure, or Reward

During a decision process, the evidence supporting alternative options is integrated over time, and the choice is made when the accumulated evidence for one of the options reaches a decision threshold. Humans and animals have an ability to control the decision threshold, that is, the amount of evidence that needs to be gathered to commit to a choice, and it has been proposed that the subthalamic nucleus (STN) is important for this control. Recent behavioral and neurophysiological data suggest that, in some circumstances, the decision threshold decreases with time during choice trials, allowing overcoming of indecision during difficult choices. Here we asked whether this within-trial decrease of the decision threshold is mediated by the STN and if it is affected by disrupting information processing in the STN through deep brain stimulation (DBS). We assessed 13 patients with Parkinson's disease receiving bilateral STN DBS six or more months after the surgery, 11 age-matched controls and 12 young healthy controls. All participants completed a series of decision trials, in which the evidence was presented in discrete time points, which allowed more direct estimation of the decision threshold. The participants differed widely in the slope of their decision threshold, ranging from constant threshold within a trial to steeply decreasing. However, the slope of the decision threshold did not depend on whether STN DBS was switched on or off and did not differ between the patients and controls. Furthermore, there was no difference in accuracy and RT between the patients in the on and off stimulation conditions and healthy controls. Previous studies that have reported modulation of the decision threshold by STN DBS or unilateral subthalamotomy in Parkinson's disease have involved either fast decision-making under conflict or time pressure or in anticipation of high reward. Our findings suggest that, in the absence of reward, decision conflict, or time pressure for decision-making, the STN does not play a critical role in modulating the within-trial decrease of decision thresholds during the choice process

COWORKING: THE NEW DESIGN OF WORKPLACES

Globalisation of business, innovative technologies and increase in knowledge-based industries have had significant impacts on organisations’ business practices. This has subsequently affected the demand for space in built-facilities. As a result, the demand for flexible office space solutions such as coworking, or provision of communal, flexible office spaces on a short-term basis, have become a rapidly growing phenomenon. By conducting a case study analyses of two large property trusts in Australia, this research paper examines how the office layouts and configurations are adapted in coworking spaces to facilitate such innovative spaces. Findings identify that the main design strategies for coworking spaces are to enhance space autonomy, create communities, facilitate collaboration, create spontaneous encounters, create multi-purpose and multi-generational spaces, create productive work environments and reduce individual workplace footprints. The research findings emphasise the importance of having more dynamic and creative office layouts and configurations that are better aligned with the interests of landlords, space operators and diverse groups of office space users in flexible office arrangements

Efficacy of depression treatments for immigrant patients: Results from a systematic review

Background: The unprecedented rates of global migration present unique challenges to mental health services in migrant receiving countries to provide efficacious and culturally salient treatment for mental health conditions including depression. This review aimed to identify and evaluate the effectiveness of depression interventions specifically directed towards first-generation immigrant populations.Methods: We conducted a systematic review of original research published between 2000 and 2013 that investigated depression interventions in first generation immigrants.Results: Fifteen studies were included; the majority focused on Latino immigrants living in the United States (US). Twelve studies investigated the use of psychotherapies; the remainder examined collaborative care models and physical exercise-based interventions. Cognitive Behavioral Therapy and Behavioral Activation tended to improve depressive symptoms, especially when culturally adapted to suit clients while Problem Solving Therapy improved depressive symptomology with and without adaptations. Collaborative care and exercise did not significantly improve depressive symptoms.Conclusion: Depression may be effectively treated by means of psychotherapies, especially when treatments are culturally adapted. However the reviewed studies were limited due to methodological weaknesses and were predominantly undertaken in the US with Latino patients. To improve generalizability, future research should be undertaken in non-US settings, amongst diverse ethnic groups and utilize larger sample sizes in either randomized clinical trials or observational cohort studies. © 2014 Antoniades et al.; licensee BioMed Central Ltd

Financial crises and the attainment of the SDGs: an adjusted multidimensional poverty approach

This paper analyses the impact of financial crises on the Sustainable Development Goal of eradicating poverty. To do so, we develop an adjusted Multidimensional Poverty Framework (MPF) that includes 15 indicators that span across key poverty aspects related to income, basic needs, health, education and the environment. We then use an econometric model that allows us to examine the impact of financial crises on these indicators in 150 countries over the period 1980–2015. Our analysis produces new estimates on the impact of financial crises on poverty’s multiple social, economic and environmental aspects and equally important captures dynamic linkages between these aspects. Thus, we offer a better understanding of the potential impact of current debt dynamics on Multidimensional Poverty and demonstrate the need to move beyond the boundaries of SDG1, if we are to meet the target of eradicating poverty. Our results indicate that the current financial distress experienced by many low-income countries may reverse the progress that has been made hitherto in reducing poverty. We find that financial crises are associated with an approximately 10% increase of extreme poor in low-income countries. The impact is even stronger in some other poverty aspects. For instance, crises are associated with an average decrease of government spending in education by 17.72% in low-income countries. The dynamic linkages between most of the Multidimensional Poverty indicators, warn of a negative domino effect on a number of SDGs related to poverty, if there is a financial crisis shock. To pre-empt such a domino effect, the specific SDG target 17.4 on attaining long-term debt sustainability through coordinated policies plays a key role and requires urgent attention by the international community

The future of the Australian valuation profession: New knowledge, emerging trends and practices

© 2018, Emerald Publishing Limited. Purpose: Valuers face significant challenges as processes become automated and the role evolves to data handling and processing. To survive and thrive, valuers must respond to a changing market. The purpose of this paper is to examine the issues, threats and challenges facing the Australian profession, though the issues are global. Design/methodology/approach: This qualitative research sought a deeper understanding of the threats, challenges and new areas of practice that Australian valuers were experiencing. A focus group approach was designed to collect data from practitioners in Sydney and Melbourne. The research aimed to identify new knowledge and skills for the future and emerging trends and practices. Findings: The key issues, threats and challenges faced included increasing use of automated valuation models for low-risk residential valuations, valuers being unable to protect themselves against the banks, loss of control of the data and valuations. In total, 12 knowledge domains and skills required in the future were established and ten emerging trends and practices were identified. Research limitations/implications: The key limitations were that participants were from Melbourne and Sydney in Australia only and the focus is NSW and Victoria centric, although many participants have international work experience. There was an under representation of rural valuers, of small valuation firms, of young, recently joined or qualified valuers and females. Practical implications: The findings inform a manifesto for the future which sets out the practical implications for valuers and the professional body. This action plan sets the new knowledge domains, practices and trends that can be adopted by the profession and its members. Originality/value: This is the original research and highlights some real threats, issues and challenges facing the Australian valuers. It complements work undertaken by legal and accounting professional bodies, which sense change affecting their membership and services. A manifesto for action has been outlined to address the changes that are coming and those already here