Nuclear reactor power as applied to a space-based radar mission

The SP-100 Project was established to develop and demonstrate feasibility of a space reactor power system (SRPS) at power levels of 10's of kilowatts to a megawatt. To help determine systems requirements for the SRPS, a mission and spacecraft were examined which utilize this power system for a space-based radar to observe moving objects. Aspects of the mission and spacecraft bearing on the power system were the primary objectives of this study; performance of the radar itself was not within the scope. The study was carried out by the Systems Design Audit Team of the SP-100 Project

The pupil's response to affective pictures: Role of image duration, habituation, and viewing mode

The pupil has been shown to be sensitive to the emotional content of stimuli. We examined this phenomenon by comparing fearful and neutral images carefully matched in the domains of luminance, image contrast, image color, and complexity of content. The pupil was more dilated after viewing affective pictures, and this effect was (a) shown to be independent of the presentation time of the images (from 100–3,000 ms), (b) not diminished by repeated presentations of the images, and (c) not affected by actively naming the emotion of the stimuli in comparison to passive viewing. Our results show that the emotional modulation of the pupil is present over a range of variables that typically vary from study to study (image duration, number of trials, free viewing vs. task), and encourages the use of pupillometry as a measure of emotional processing in populations where alternative techniques may not be appropriate

The impact of the direct payment of housing benefit: evidence from Great Britain

In recent years, a number of welfare reforms have been introduced in the UK by Conservative-led governments. The most high profile of these is Universal Credit (UC), which is currently being rolled out across the country. A key feature of UC is a change in the way the income-related housing allowance for social housing tenants (Housing Benefit) is administered, as under UC, it is paid directly to tenants (direct payment), who are responsible for paying their rent. This represents a step change for them as for more than 30 years landlord payment has been the norm in the UK. There has been little research into direct payment. This paper seeks to address this gap in knowledge by presenting the key findings of an initiative designed to trial direct payment. It finds that many tenants experienced difficulties on direct payment. Reflecting this, landlords' arrears rose markedly

The impact on welfare and public finances of job loss in industrial Britain

It is important to take a long view of many economic problems. This paper explains how the large-scale loss of industrial jobs in parts of Britain during the 1980s and 1990s still inflates the contemporary budget deficit in the UK. Drawing on the findings of several empirical studies by the authors, it shows that although there has been progress in regeneration the consequences of job loss in Britain’s older industrial areas have been near-permanently higher levels of worklessness, especially on incapacity benefits, low pay, and a major claim on present-day public finances to pay for both in-work and out-of-work benefits. Furthermore, as the UK government implements reductions in welfare spending the poorest places are being hit hardest. In effect, communities in older industrial Britain now face punishment in the form of welfare cuts for the destruction previously wrought to their industrial base

The impact on welfare and public finances of job loss in industrial Britain

It is important to take a long view of many economic problems. This paper explains how the large-scale loss of industrial jobs in parts of Britain during the 1980s and 1990s still inflates the contemporary budget deficit in the UK. Drawing on the findings of several empirical studies by the authors, it shows that although there has been progress in regeneration the consequences of job loss in Britain’s older industrial areas have been near-permanently higher levels of worklessness, especially on incapacity benefits, low pay, and a major claim on present-day public finances to pay for both in-work and out-of-work benefits. Furthermore, as the UK government implements reductions in welfare spending the poorest places are being hit hardest. In effect, communities in older industrial Britain now face punishment in the form of welfare cuts for the destruction previously wrought to their industrial base

Clinical findings and survival in cats naturally infected with feline immunodeficiency virus (FIV)

Background: The clinical course and outcome of natural feline immunodeficiency virus (FIV) infection are variable and incompletely understood. Assigning clinical relevance to FIV infection in individual cats represents a considerable clinical challenge. Objective: To compare signalment, hematologic and biochemical data, major clinical problem and survival between client-owned, FIV-infected and uninfected domestic cats. Animals: Client-owned, domestic cats tested for FIV (n=520). Methods: Retrospective, case control study. Logistic regression analyses were conducted to identify risk factors for FIV infection and to compare hematologic and biochemical data between cases and controls, after adjusting for potential confounders. Survival times were compared using Kaplan-Meier curves. Results: The prevalence of FIV infection was 14.6%. Mixed breed, male sex and older age were risk factors for FIV infection. Hematologic abnormalities, biochemical abnormalities, or both were common in both FIV-infected and uninfected cats. Lymphoid malignancies were slightly more common in FIVinfected than uninfected cats. Survival of FIV-infected cats was not significantly different from that of uninfected cats. Conclusions and clinical importance: Multiple hematologic and biochemical abnormalities are common in old, sick cats regardless of their FIV status. Their presence should not be assumed to indicate clinical progression of FIV infection. A negative effect of FIV on survival was not apparent in this study. Keywords: Clinicopathological findings; Feline immunodeficiency virus; surviva

Clinical findings and survival in cats naturally infected with feline immunodeficiency virus (FIV)

Background: The clinical course and outcome of natural feline immunodeficiency virus (FIV) infection are variable and incompletely understood. Assigning clinical relevance to FIV infection in individual cats represents a considerable clinical challenge. Objective: To compare signalment, hematologic and biochemical data, major clinical problem and survival between client-owned, FIV-infected and uninfected domestic cats. Animals: Client-owned, domestic cats tested for FIV (n=520). Methods: Retrospective, case control study. Logistic regression analyses were conducted to identify risk factors for FIV infection and to compare hematologic and biochemical data between cases and controls, after adjusting for potential confounders. Survival times were compared using Kaplan-Meier curves. Results: The prevalence of FIV infection was 14.6%. Mixed breed, male sex and older age were risk factors for FIV infection. Hematologic abnormalities, biochemical abnormalities, or both were common in both FIV-infected and uninfected cats. Lymphoid malignancies were slightly more common in FIVinfected than uninfected cats. Survival of FIV-infected cats was not significantly different from that of uninfected cats. Conclusions and clinical importance: Multiple hematologic and biochemical abnormalities are common in old, sick cats regardless of their FIV status. Their presence should not be assumed to indicate clinical progression of FIV infection. A negative effect of FIV on survival was not apparent in this study. Keywords: Clinicopathological findings; Feline immunodeficiency virus; surviva

Putting the squeeze on "Generation Rent": housing benefit claimants in the private rented sector - transitions, marginality and stigmatisation

The term 'Generation Rent' has gained currency in recent years to reflect the fact that more 25 to 34 year olds in Britain now live in rented accommodation rather than owner-occupation. The term also conveys the extent to which age-related divisions in the housing market are becoming as significant as longer standing tenure divisions. However, this portmanteau term covers a wide array of different housing circumstances - from students, young professionals and transient households to the working and non-working poor. This paper focuses on the position of a specific category of this age cohort - those 25 to 34 year olds living in self-contained accommodation in the private rented sector who are in receipt of Housing Benefit. On the basis of survey evidence and qualitative interviews with landlords and housing advisers, the paper considers how the marginal economic and housing market position of this age group is being reinforced by the stigmatising attitudes of landlords which formerly applied to tenants in their late teens and early 20s and are now being extended further along the age band. The paper suggests that the use of a 'housing pathways' approach to signify the housing transitions of young adults needs to be revisited, to give greater weight to collective and creative responses to constraints in the housing market and to recognise the key role played by gatekeepers such as landlords in stigmatising groups according to assumed age-related attributes