A Multiple Indicators Multiple Causes (MIMIC) model of Behavioural and Psychological Symptoms in Dementia (BPSD)

Introduction: Although there is evidence for distinct behavioural sub-phenotypes in Alzheimer's disease (AD), their inter-relationships and the effect of clinical variables on their expression have been little investigated.

Dealing with post-traumatic stress disorder: The psychological sequelae of bloody Sunday and the response of state services

Objective: This article describes the political context of health and social care services in Northern Ireland at a the of intense social conflict. Method: Concepts from post-traumatic stress disorder (PTSD) and other relevant international psychological literature are then used to study the experience of the Bloody Sunday families, victims of a traumatic event that happened in Derry in January 1972. Results: High levels of psychological morbidity within this population are reported, alongside some evidence that families had not received services that may have helped resolve the trauma. Conclusions: The authors noted that new services planned as a result of the current peace process may offer social workers and other professionals new ways to address the unmet needs of people traumatized by the Troubles.

The psychological effects of organizational restructuring on nurses

This paper reports a comparison of nurses affected by the restructuring associated with healthcare organization mergers (1998-2000) in the United Kingdom and those of non-affected nurses in the UK.

Psychological and social profile of family caregivers upon commencement of palliative care provision

Context
Palliative care services are required to support patients who have advanced, life-threatening, noncurable disease, and their family caregivers. Comprehensive psychological and social support for bereaved family members also is expected. However, recent systematic reviews have demonstrated significant gaps in evidence-based approaches for such support. Furthermore, a comprehensive understanding of the psychological and social response to the family caregiver role is required for support to be optimized.

Objectives
We sought to examine the psychological and social profile of family caregivers on commencement of receiving palliative care services.

Methods
A self-report questionnaire was administered to primary family caregivers of patients within two weeks of admission to three palliative care services in Melbourne, Australia. The questionnaire incorporated six instruments that measured 11 family caregiver-related psychosocial factors; four instruments that measured caregiver psychological distress factors; 14 mental health lifetime risk factors; and a sociodemographic questionnaire.

Results
Three hundred and two family caregivers participated. Nearly half (44%) of the caregivers had a probable anxiety and/or depressive disorder, with 40% scoring more than the cutoff score for probable anxiety and 20% scoring more than the cutoff score for probable depression. Additionally, approximately 15% of caregivers met the criteria for pre-loss grief, and around 10% reported moderate to severe levels of demoralization. Caregivers who had a probable anxiety and/or depressive disorder also reported higher levels of pre-loss grief.

Conclusion
This study provides further evidence of the prevalence of poor psychosocial well-being in this population. The results reinforce the need to develop suitable strategies for psychological and social support for family caregivers.

Panel unit root tests in the presence of cross-sectional dependence: finite sample performance and an application

This paper examines the finite sample properties of three testing regimes for the null hypothesis of a panel unit root against stationary alternatives in the presence of cross-sectional correlation. The regimes of Bai and Ng (2004), Moon and Perron (2004) and Pesaran (2007) are assessed in the presence of multiple factors and also other non-standard situations. The behaviour of some information criteria used to determine the number of factors in a panel is examined and new information criteria with improved properties in small-N panels proposed. An application to the efficient markets hypothesis is also provided. The null hypothesis of a panel random walk is not rejected by any of the tests, supporting the efficient markets hypothesis in the financial services sector of the Australian Stock Exchange.

Comment on “Electron transport through correlated molecules computed using the time-independent Wigner function: Two critical tests”

The many-electron-correlated scattering (MECS) approach to quantum electronic transport was investigated in the linear-response regime [I. Bâldea and H. Köppel, Phys. Rev. B 78, 115315 (2008). The authors suggest, based on numerical calculations, that the manner in which the method imposes boundary conditions is unable to reproduce the well-known phenomena of conductance quantization. We introduce an analytical model and demonstrate that conductance quantization is correctly obtained using open system boundary conditions within the MECS approach.

A Community Study of the Psychological Effects of the Omagh Car Bomb on Adults

Background: The main aims of the study were to assess psychological morbidity among adults nine months after a car bomb explosion in the town of Omagh, Northern Ireland and to identify predictors of chronic posttraumatic stress disorder symptoms.

Method: A questionnaire was sent to all adults in households in The Omagh District Council area. The questionnaire comprised established predictors of PTSD (such as pre-trauma personal characteristics, type of exposure, initial emotional response and long-term adverse physical or financial problems), predictors derived from the Ehlers and Clark (2000) cognitive model, a measure of PTSD symptoms and the General Health Questionnaire.

Results: Among respondents (n = 3131) the highest rates of PTSD symptoms and probable casesness (58.5%) were observed among people who were present in the street when the bomb exploded but elevated rates were also observed in people who subsequently attended the scene (21.8% probable caseness) and among people for whom someone close died (11.9%). People with a near miss (left the scene before the explosion) did not show elevated rates. Exposure to the bombing increased PTSD symptoms to a greater extent than general psychiatric symptoms. Previously established predictors accounted for 42% of the variance in PTSD symptoms among people directly exposed to the bombing. Predictors derived from the cognitive model accounted for 63%.

Conclusions: High rates of chronic PTSD were observed in individuals exposed to the bombing. Psychological variables that are in principle amenable to treatment were the best predictors of PTSD symptoms. Teams planning treatment interventions for victims of future bombings and other traumas may wish to take these results into account.

ARE OECD MACROECONOMIC VARIABLES TREND STATIONARY? EVIDENCE FROM PANEL STATIONARITY TESTS ALLOWING FOR A STRUCTURAL BREAK AND CROSS-SECTIONAL DEPENDENCE

This article applies the panel stationarity test with a break proposed by Hadri and Rao (2008) to examine whether 14 macroeconomic variables of OECD countries can be best represented as random walk or stationary fluctuations around a deterministic trend. In contrast to previous studies, based essentially on visual inspection of the break type or just applying the most general break model, we use a model selection procedure based on BIC. We do this for each time series so that heterogeneous break models are allowed for in the panel. Our results suggest, overwhelmingly, that if we account for a structural break, cross-sectional dependence and choose the break models to be congruent with the data, then the null of stationarity cannot be rejected for all the 14 macroeconomic variables examined in this article. This is in sharp contrast with the results obtained by Hurlin (2004), using the same data but a different methodology.

Psychological adjustment to Type 2 Diabetes and relationship quality

Aims To examine the associations between psychological adjustment to Type 2 diabetes and the reported quality and type of relationships with partners. Methods All participants (n = 88) completed a number of questionnaires, including twomeasures of relationship quality: the Dyadic Adjustment Scale and the PersonalAssessment of Intimacy inRelationships Scale, theDiabetesQuality of Life Scale and the ATT-19 (which assesses personal integration of diabetes). Additionally, HbA1c levels were obtained from medical notes. Results Measures of relationship quality significantly contributed to the explanation of two outcomes: personal integration of diabetes and satisfaction with the burden of self-management behaviours. More specifically, the findings demonstrate that a specific aspect of relationship quality—intimacy in recreational activities—is positively associated with the outcomesmentioned above. Conclusions People with Type 2 diabetes who are not taking insulin, who share engagement in physical activities with their partner are more likely to be psychologically well-adjusted to their diagnosis of diabetes.