361 research outputs found

    Superhydrophobicity in Power Applications

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    Presented at the Insulated Conductors Committee, San Antonio, Texas, October 26-29, 2008

    Calmodulin interacts with angiotensin-converting enzyme-2 (ACE2) and inhibits shedding of its ectodomain

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    AbstractAngiotensin-converting enzyme-2 (ACE2) is a regulatory protein of the renin–angiotensin system (RAS) and a receptor for the causative agent of severe-acute respiratory syndrome (SARS), the SARS-coronavirus. We have previously shown that ACE2 can be shed from the cell surface in response to phorbol esters by a process involving TNF-α converting enzyme (TACE; ADAM17). In this study, we demonstrate that inhibitors of calmodulin also stimulate shedding of the ACE2 ectodomain, a process at least partially mediated by a metalloproteinase. We also show that calmodulin associates with ACE2 and that this interaction is decreased by calmodulin inhibitors

    Disjunctures in practice: ethnographic observations of orthopaedic ward practices in the care of older adults with hip fracture and presumed cognitive impairment

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    Organisational priorities for health care focus on efficiency as the health and care needs of populations increase. But evidence suggests that excessive planning can be counterproductive, leading to resistance from staff and patients, particularly those living with cognitive impairment. The current paper adds to this debate reporting an Institutional Ethnography of staff delivering care for older patients with cognitive impairment on acute orthopaedic wards in three National Health Service hospitals in the United Kingdom. A key problematic identified in this study is the point of disjuncture seen between the actualities of staff experience and intentions of protocols and policies. We identified three forms of disjuncture typified as: ‘disruptions’, where sequenced care was interrupted by patient events; ‘discontinuities’, where divisions in professional culture, space or time interrupted sequenced tasks; and ‘dispersions’, where displaced objects or people interrupted sequenced care flow. Arguably disruption is an integral characteristic of care work; it follows that to enable staff to flourish, organisations need to confer staff the autonomy to address systemic disruptions rather than attempt to eradicate them. Ultimately, organisational representations of ‘good practice’ as readily joined up, impose a care standard ‘stereotype’ that obscures rather than clarifies the interactional problems encountered by staff

    Making body work sequences visible: an ethnographic study of acute orthopaedic hospital wards

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    Within health and social care, academic attention is increasingly paid to understanding the nature and centrality of body work. Relatively little is known about how and where body work specifically fits into the wider work relations that produce it in healthcare settings. We draw on ethnographic observations of staff practice in three National Health Service acute hospital wards in the United Kingdom to make visible the micro-processes of patient care sequences including both body work and the work contextualising and supporting it. Our data, produced in 2015, show body work interactions in acute care to be critically embedded within a context of initiating, preparing, moving and restoring and proceeding. Shades of privacy and objectification of the body are present throughout these sequences. While accomplishing tasks away from the physical body, staff members must also maintain physical and cognitive work focussed on producing body work. Thus, patient care is necessarily complex, requiring much staff time and energy to deliver it. We argue that by making visible the micro-processes that hospital patient care depends on, including both body work and the work sequences supporting it, the complex physical and cognitive workload required to deliver care can be better recognised. (A virtual version of this abstract is available at: https://www.youtube.com/channel/UC_979cmCmR9rLrKuD7z0ycA)

    Training healthcare professionals in LGBTI cultural competencies: Exploratory findings from the Health4LGBTI pilot project

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    Abstract Objectives Lesbian, gay, bisexual, trans and intersex (LGBTI) people experience health inequalities and barriers to accessing healthcare at a greater rate than the general population. This paper aims to present the Health4LGBTI training course for healthcare workers and the results of its pilot implementation. Methods Funded by the European Parliament, the training course was developed by a multidisciplinary team including LGBTI organisations as part of the Health4LGBTI Project. 110 healthcare professionals from diverse medical fields attended the pilot training in six European Member States. Knowledge and attitudes were compared on the basis of a pre-post evaluation design utilising an ad hoc questionnaire. Results Knowledge scores increased after the training, irrespective of age and sexual orientation of participants. Attitudes scores generally improved, particularly in terms of inclusivity and a greater acknowledgement of LGBTI health needs and self-competence. Conclusion The Health4LGBTI training course is both feasible and effective in training healthcare professionals and support staff to improve cultural competence and thereby promoting inclusive healthcare practice. Practice Implications The Health4LGBTI training course can be implemented in different healthcare contexts. Piloting of the course provided an opportunity for healthcare professionals and for support staff to improve their knowledge of, and attitudes towards, LGBTI people

    Implications of COVID-19 control measures for diet and physical activity, and lessons for addressing other pandemics facing rapidly urbanising countries.

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    At the time of writing, it is unclear how the COVID-19 pandemic will play out in rapidly urbanising regions of the world. In these regions, the realities of large overcrowded informal settlements, a high burden of infectious and non-communicable diseases, as well as malnutrition and precarity of livelihoods, have raised added concerns about the potential impact of the COVID-19 pandemic in these contexts. COVID-19 infection control measures have been shown to have some effects in slowing down the progress of the pandemic, effectively buying time to prepare the healthcare system. However, there has been less of a focus on the indirect impacts of these measures on health behaviours and the consequent health risks, particularly in the most vulnerable. In this current debate piece, focusing on two of the four risk factors that contribute to >80% of the NCD burden, we consider the possible ways that the restrictions put in place to control the pandemic, have the potential to impact on dietary and physical activity behaviours and their determinants. By considering mitigation responses implemented by governments in several LMIC cities, we identify key lessons that highlight the potential of economic, political, food and built environment sectors, mobilised during the pandemic, to retain health as a priority beyond the context of pandemic response. Such whole-of society approaches are feasible and necessary to support equitable healthy eating and active living required to address other epidemics and to lower the baseline need for healthcare in the long term

    Prevalence, goals of care and long-term outcomes of patients with life-limiting illness referred to a tertiary ICU

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    OBJECTIVE: To describe the prevalence, characteristics, long-term outcomes and goals-of-care discussions of patients with objective indicators of life-limiting illnesses (LLIs) referred to the intensive care unit. DESIGN, SETTING AND PATIENTS: A prospective, observational, cohort study of all adult inpatients referred to the ICU by the medical emergency team or by direct referral, during the period 30 August 2012 to 1 February 2013, at a tertiary teaching hospital in Australia. MAIN OUTCOME MEASURES: Mortality, LLIs, discharge destination and documentation on goals of care in medical record. RESULTS: A total of 649 of 1024 patients referred to the ICU had an LLI, and only 34.4% of these patients had goals of care documented. Overall, 49.2% were admitted to the ICU, 48.4% were discharged home, and the 1-year mortality was 35.1%. The most common LLI criteria were heart disease (52.2%), chronic obstructive pulmonary disease (24.8%) and frailty (23.7%). The highest 1-year mortality was associated with pre-hospital residence in a nursing home (64.9%), dementia (63.3%), cancer (60.8%) and frailty (50.6%). Analysis of patients by clinical trajectory showed that 1-year mortality was significantly higher for patients with cancer (59.6%), combined organ failure and frailty (47.3%), frailty (43.8%) and organ failure (23.6%), compared with patients with no LLI (P < 0.0001). CONCLUSIONS: A high proportion of patients referred to the ICU have an LLI, and this is associated with prolonged hospital length of stay and a high 1-year mortality, and only one-quarter have documented discussions on goals of care. Patients with cancer-related and frailty-related LLIs have the worst survival trajectories

    Optimising care for patients with cognitive impairment and dementia following hip fracture

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    The global shift in demographics towards aging populations is leading to a commensurate increase in age-related disease and frailty. It is essential to optimise health services to meet current needs and prepare for anticipated future demands. This paper explores issues impacting on people living with cognitive impairment and/or dementia who experience a hip fracture and are cared for in acute settings. This is important given the high mortality and morbidity associated with this population. Given the current insufficiency of clear evidence on optimum rehabilitation of this patient group, this paper explored three key themes namely: recognition of cognitive impairment, response by way of training and education of staff to optimise care for this patient group and review of the importance of outcomes measures. Whilst there is currently insufficient evidence to draw conclusions about the optimal ways of caring for patients living with dementia following hip fracture, this paper concludes that future research should improve understanding of healthcare staff education to improve the outcomes for this important group of patients
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