438 research outputs found

    The Application of Risk Based Inspection to Pressure Vessels and Aboveground Storage Tanks in Petroleum Fuel Refineries

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    Plant reliability and profitability are important performance indicators for oil refineries. The amount of inspection and maintenance resources that is devoted to process equipment effects the overall plant performance. Dedicating the same level of resources to inspecting and maintaining each piece of equipment is not cost effective and can lead to oversight of high risk equipment. Although in an operating plant, the number of high risk items usually exists in lower percentages than low risk items, an oversight in the inspection and maintenance of high risk equipment may produce catastrophic results. Risk based inspection (RBI) provides a methodology for prudent assignment of resources to assess and maintain equipment integrity based on their risk levels. The application of RBI to pressure vessels and aboveground storage tanks are demonstrated through two examples related to a crude distillation column and a crude storage tank

    Twenty-first century contact in care: a response by foster carers

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    In this post, Jenny Simpson shares her research into how foster carers manage young people's use of digital devices. The study involved young people in care aged 14-18 in England, as well as their foster carers and social workers, and considered how they used such devices to contact family members. It found that monitoring of young people’s use of such devices was a continuous part of the foster carers’ role but they often lacked adequate skills, training and support

    Twenty-first century contact: the use of mobile communication devices and the internet by young people in care

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    This article contributes to the growing area of research appertaining to the use of mobile communication devices and the internet by children in care in order to maintain contact with family and friends. It is based on a triadic method of semi-structured interviews with 12 young people and their foster carers and social work practitioners. The study found that the young people were not passive recipients of their familial and friendship networks and did not deem their interactions as ‘contact’, perceiving them more as ‘staying in touch’. The opportunities provided for this by the new technology enabled immediacy, reach and communication in real time and duration – all features that allowed them to control the ‘who, how and when’ of their relationships. But despite the potential of the new communication methods to bring cohesion between young people and their relatives, it was not utilised or supported by their foster carers or social work practitioners who tended to view this new channel of communication as a risk or a nuisance

    Addressing the needs of the children’s integrated workforce: A method for developing collaborative practice through joint learning

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    The delivery of welfare, health and educational provision to the majority of children aged 0–18 in England is primarily led by local authorities via their children’s integrated service. In 2004 the children’s integrated service model was launched and it promised the benefits of an integrated and collaborative system of working, regarding flexibility and responsiveness to national policy, local development and capacity building (Robinson et al, 2008). However, the implementation and emergence of this model has been characterised by competing local and national agendas, practitioner misunderstanding and lack of trust, a lack of strong leadership and also financial restrictions. It can therefore be contended that conceptually children’s integrated services are not operating fully with a collaborative and integrated workforce. As a possible solution to the current situation, it is proposed that joint learning, along with a combined continual professional development (CPD) framework, be made available as a valuable starting point for such organisations. Learning and working together has benefits for children and practitioners, and especially, as this article will argue, for playwork practitioners

    An exploration of ego impairment in Bipolar Mood Disorder using the Ego Impairment Index-2

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    The study was exploratory in nature, with 62 adult participants participating in this research. The aim of the study was to determine the level of ego impairment, if any, among a group of patients diagnosed with Bipolar Disorder. The data obtained from this sample was subjected to the Rorschach-based Ego Impairment Index-2 (EII-2). An in-depth analysis of the composite variables of this index was performed, allowing a comprehensive grasp of the implications of ego impairment in everyday functioning. The study was conducted in order to ascertain the nature of the psychological dynamics at play amongst this population group. The value of using the EII-2 is seen in its ability to establish various strengths and weaknesses in areas of ego functioning that are a core component of the personality, rather than behavioural manifestations that are sporadic and subject to change. Thus the results will reflect traits that are enduring and fundamental when considering the personality. In addition, the areas of psychological functioning that were determined were linked to the current conceptualisation of Bipolar Disorder, which, at present, is primarily conceived of as a biological disorder. The results of the EII-2 yielded from this sample indicated an overall moderate ego impairment falling within the moderate range, indicating that for this population, an impairment of ego was evident. Particularly, the domains of reality testing, cognitive functioning and object relatedness seemed to be most impaired.Dissertation (MA)--University of Pretoria, 2010.PsychologyUnrestricte

    Time-averaged copper concentrations from continuous exposures predicts pulsed exposure toxicity to the marine diatom, Phaeodactylum tricornutum: importance of uptake and elimination

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    Intermittent, fluctuating and pulsed contaminant discharges result in organisms receiving highly variable contaminant exposures. Current water quality guidelines are predominantly derived using data from continuous exposure toxicity tests, and most frequently applied by regulators with the assumption that concentrations from a single sampling event will provide a meaningful approach to assessing potential effects. This study investigated the effect of single and multiple (daily) dissolved copper pulses on the marine diatom, Phaeodactylum tricornutum, including measurements of copper uptake and elimination to investigate the toxic mechanism. Copper pulses of between 0.5 and 24 h and continuous exposures with equivalent 72-h time-averaged concentrations (TACs) resulted in similar biomass inhibition of P. tricornutum, with continuous exposures often being marginally more toxic. Rates of cell division generally recovered to control levels within 24 h of the copper pulse removal. Upon resuspension in clean seawater, the extracellular copper per cell decreased rapidly, whereas the intracellular copper per cell decreased slowly. Negligible loss of copper from the total algal biomass indicated that P. tricornutum did not have an effective mechanism for eliminating copper from cells, rather the intracellular copper decreased as a result of dilution by cellular division as the algal growth rate recovered. The measurement of copper uptake after 72-h exposure and kinetics of elimination thereafter suggest that continuous exposures are marginally more toxic to P. tricornutum than pulsed copper exposures with equivalent TACs because slow internalization and saturation of algal membrane transport sites results in less copper uptake into pulse-exposed cells than continuously-exposed cells coupled with dilution of internalized copper via cellular division in the post-exposure period. In the case of P. tricornutum, the results indicate that water quality guidelines for copper based on continuous exposure will be conservative when applied to short-term discharges

    Health promotion in an Australian Aboriginal community: the Growing Strong Brains Âź toolkit

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    AIM: The aim of this paper is to describe the implementation and evaluation of the Growing Strong BrainsÂź (GSB) toolkit in a remote Aboriginal community in Western Australia (WA) over a 2-year period, 2018-2019. BACKGROUND: Ngala, a community service organisation in WA, developed the GSB toolkit in 2014, a culturally appropriate and interactive resource to build knowledge of early childhood development within Aboriginal communities. This was in response to evidence that a higher percentage of children in Aboriginal communities were developmentally vulnerable compared to the rest of the population. The GSB toolkit promotes awareness and understanding of early brain development pre-birth and in the early years of a child\u27s life. METHODS: The project was underpinned by participatory action research (PAR). Reflective PAR review cycles (n = 5) monitored local community engagement, navigated challenges and utilised community strengths. Fifty-nine local service providers attended a 2-day formal training. Data were collected by using various methods throughout the project, including feedback following training, focus groups, surveys, one-on-one interviews using yarning techniques and reflective feedback from the Project Lead. FINDINGS: Establishing local Aboriginal project staff was pivotal to the success of the project. When delivering services for and with Aboriginal people, it is essential that cultural competence, safety and decision-making is carried through from planning to implementation and evaluation, and involves genuine, respectful and authentic relationships. Sufficient time allocation directed towards building relationships with other service providers and local community members needs to be considered and built into future projects.The Growing Strong BrainsÂź project is embedded within the local community, and anticipated implementation outcomes were achieved. The support of the local people and service providers was beyond expectation, enabling the building of local capacity, and the development of a common understanding of the key messages from the GSB toolkit to allow integration throughout all levels of the community. This project has been important to build on the strategies necessary to introduce, implement and evaluate the GSB toolkit in other remote Aboriginal communities
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