University of Zielona Góra
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Accounting research: A bibliometric analysis
No full textBibliometrics is a fundamental field of information science that studies bibliographic material quantitatively. It is very useful for organising available knowledge within a specific scientific discipline. This study presents a bibliometric overview of accounting research using the Web of Science database, identifying the most relevant research in the field classified by papers, authors, journals, institutions and countries. The results show that the most influential journals are: The Journal of Accounting and Economics, Journal of Accounting Research, The Accounting Review and Accounting, Organizations and Society. It also shows that US institutions are the most influential worldwide. However, it is important to note that some very good research in this area, including a small number of papers and citations, may not show up in this study due to the specific characteristics of different subtopics
Bombing the City:Civilian Accounts of the Air War over Britain and Japan, 1939-1945
No full textBombing the City confronts the relationship between the civilian support for war, and the suffering that it meted out to them directly. In order to do so, it will examine the personal accounts of ordinary people in the cities of wartime Britain and Japan, focusing on how they experienced the war as non-combatants
Electronic correlations in the Hubbard model on a bi-partite lattice
No full textIn this work we study the Hubbard model on a bi-partite lattice using the coupled-cluster method (CCM). We first investigate how to implement this approach in order to reproduce the lack of magnetic order in the 1D model, as predicted by the exact Bethe-Ansatz solution. This result can only be reproduced if we include an algebraic correlation in some of the coupled-cluster model coefficients. Using the correspondence between the Heisenberg model and the Hubbard model in the large-coupling limit, we use very accurate results for the CCM applied to the Heisenberg and its generalisation, the XXZ model, to determine CCM coefficients with the correct properties. Using the same approach we then study the 2D Hubbard model on a square and a honeycomblattice, both of which can be though of as simplified models of real 2D materials. We analyse the charge and spin excitations, and show that with care we can obtain good results
Expressed Emotion in relatives of persons with dementia: a systematic review and meta-analysis
No full textOBJECTIVES: Expressed Emotion (EE) refers to a number of key aspects of interpersonal relationships which have been shown to relate to outcomes in relatives of people with health conditions. DESIGN: A systematic review and meta-analysis of EE and outcomes in relatives of persons with dementia is reported. Potential research studies were identified via a search of three electronic databases; PsychINFO, MEDLINE and the Web of Science between 1960 and 2015. RESULTS: We reviewed 12 studies investigating correlations between EE and well-being in relatives of patients with dementia. Factors hypothesised to influence EE including attributions, social support, coping strategies and relationship quality were also reviewed. CONCLUSION: High-EE relatives were found to have increased levels of burden (Z = 6.967, P <0.001) and greater levels of depression (Z = 5.842, P <0.001). Compared to low-EE relatives, high-EE relatives were more likely to attribute the patient's problems to factors that were personal to and controllable by the patient. Relatives with less social support, inefficient coping strategies and a poor relationship with the patients, were more likely to be classified as high-EE
The experience of postnatal depression in immigrant mothers living in western countries:a meta-synthesis
No full textBackground: Postnatal depression affects women from all cultures and countries. The postnatal period is thought to be a vulnerable time for all mothers. Immigrant women may be at particular risk as they attempt to adhere to childbirth rituals in western societies which might exacerbate stress, while navigating through the multiple stressors they face from migration in the transition to motherhood.Methods: This study utilized a meta-synthesis approach to synthesize qualitative studies exploring postnatal depression in immigrant mothers living in western countries. Searching six databases identified 16 studies that met criteria.Results: The synthesis revealed two overarching themes of migration and cultural influences on immigrant mothers that interact and give rise to psychosocial understandings of postnatal depression, remedies and healthcare barriers. Mothers used self-help coping strategies in line with this.Conclusions: Immigrant mothers living in western countries are subject to multifactorial stressors following childbirth, increasing their susceptibility to postnatal depression. These stressors relate to being an immigrant in a western society and cultural influences, which may be harder to comply with, when removed from their sociocultural context. Social support appears to play a mediating role for these immigrant mothers. There were several similarities between immigrant and non-immigrant mothers including their views of healthcare and medication, their health-seeking behaviours and their fears of having their baby removed. All these findings have implications for healthcare settings in terms of assessments and service delivery. Copyright © 2016 John Wiley & Sons, Ltd
Optimised Reactive Power Supports using Transformer Tap Stagger in Distribution Networks
No full textIn distribution networks, the operation of two parallel transformers in small different tap positions, i.e. known as tap stagger, can provide a means of absorbing reactive power. The aggregated VAr absorption from many pairs of parallel transformers could help mitigate the high voltages in the upstream transmission system during periods of low demand. Considering distribution networks as reactive power support providers, this paper presents an optimal control strategy for the tap stagger to minimise the introduced network losses as well as the tap switching operations. A genetic algorithm based solution procedure is developed to find the optimal dispatch for the transformer tap positions, in order to achieve the VAr absorption required by the transmission system. The proposed method is compared with two alternative control approaches based on the rule-based method and the branch-and-bound algorithm, respectively. Two practical UK distribution networks are modelled from real data and used to demonstrate the effectiveness of the proposed control strategy under different operating conditions
The experiences of fathers when their partners are admitted with their infants to a psychiatric Mother and Baby Unit
No full textMothers with severe post-natal mental illness can be admitted with their infant to a psychiatric mother and baby unit (MBU) in the UK. MBUs provide specialist assessment, management and support. Partners of women admitted to MBUs are integral to their recovery but may show reduced wellbeing themselves, yet their support needs have not been investigated. This study aimed to identify how fathers experience the MBU and how they felt supported. A qualitative design was adopted by using a purposive sample of 17 fathers, recruited from a MBU during their partner's admission. Semi-structured interviews were used, and responses were analysed using an inductive thematic analysis. Four main themes were developed: (1) ‘double whammy’, (2) understanding the admission and illness, (3) support for fathers, and (4) personal stressors and coping. We identified the emotional struggle that fathers experienced when coping simultaneously with the arrival of a baby and their partner's illness. Furthermore, fathers sought support from many sources, but their knowledge of psychiatric services and mental illness was limited. Fathers felt uncertain about their partners' progression and when their partner would return home with their baby. The provision of an information pack and regular one-to-one meetings between fathers and MBU staff are recommended. Copyright © 2016 John Wiley & Sons, Ltd. Key Practitioner Message •Partners of mothers admitted to a psychiatric mother and baby unit have shown increased vulnerability to mental illness themselves; however, little is known about the support that these fathers need and receive during this time. •Using interviews, this study sought to understand a) how fathers experienced the mental illness of their partner and the unit's services and b) how fathers could be better supported. •Fathers face many emotional and practical challenges during their partner's admission and seek support from numerous sources, including the mother and baby unit. •Fathers require more information from the mother and baby unit with regard to mental illness and the unit's services. Furthermore, the introduction of regular one-to-one updates between staff and fathers would provide an opportunity for fathers to understand how their partner is progressing and for staff to informally assess the father's wellbeing and outstanding support needs
Broad Ion Beam Serial Section Tomography
No full textHere we examine the potential of serial Broad Ion Beam (BIB) Ar+ ion polishing as an advanced serial section tomography (SST) technique for destructive 3D material characterisation for collecting data from volumes with lateral dimensions significantly greater than 100 μm and potentially over millimetre sized areas. Further, the associated low level of damage introduced makes BIB milling very well suited to 3D EBSD acquisition with very high indexing rates. Block face serial sectioning data registration schemes usually assume that the data comprises a series of parallel, planar slices. We quantify the variations in slice thickness and parallelity which can arise when using BIB systems comparing Gatan PECS and Ilion BIB systems for large volume serial sectioning and 3D-EBSD data acquisition. As a test case we obtain 3D morphologies and grain orientations for both phases of a WC-11%wt. Co hardmetal. In our case we have carried out the data acquisition through the manual transfer of the sample between SEM and BIB which is a very slow process (1-2 slice per day), however forthcoming automated procedures will markedly speed up the process. We show that irrespective of the sectioning method raw large area 2D-EBSD maps are affected by distortions and artefacts which affect 3D-EBSD such that quantitative analyses and visualisation can give misleading and erroneous results. Addressing and correcting these issues will offer real benefits when large area (millimetre sized) automated serial section BIBS is developed