Publications by authors named "Jonathon Gray"

The degradation of freshwater systems by salt pollution is a threat to global freshwater resources. Salinization is commonly identified by increased specific conductance (conductivity), a proxy for salt concentrations. However, conductivity fails to account for the diversity of salts entering freshwaters and the potential implications this has on microbial communities and functions.

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The solvent can occupy up to ∼70% of macromolecular crystals, and hence, having models that predict solvent distributions in periodic systems could improve the interpretation of crystallographic data. Yet, there are few implicit solvent models applicable to periodic solutes, and crystallographic structures are commonly solved assuming a flat solvent model. Here, we present a newly developed periodic version of the 3D-reference interaction site model (RISM) integral equation method that is able to solve efficiently and describe accurately water and ion distributions in periodic systems; the code can compute accurate gradients that can be used in minimizations or molecular dynamics simulations.

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Atomic models for nucleic acids derived from X-ray diffraction data at low resolution provide much useful information, but the observed scattering intensities can be fit with models that can differ in structural detail. Tradtional geometric restraints favor models that have bond length and angle terms derived from small molecule crystal structures. Here we explore replacing these restraints with energy gradients derived from force fields, including recently developed integral equation models to account for the effects of water molecules and ions that are not part of the explicit model.

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Methods: It draws on a series of 20 interviews with key protagonists and employs a Bakhtinian approach to narrative analysis, which explores the interplay between individual accounts and larger sociocultural themes.

Conclusions: It concludes that the success in managing the complexity of this project can largely be attributed to a systems leader approach that draws on the power of an agile network to be replenished and redeployed against rapidly evolving strategic objectives. This effectively constitutes a parallel operating structure, which is devoted to the design and implementation of strategy based on a continual assessment of the organisation and serves to strengthen rather than supersede established hierarchical structures of authority.

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Background: The current paper reports on a realist evaluation of two consecutive quality improvement campaigns based on the Institute for Healthcare Improvement's Breakthrough Series. The campaigns were implemented by a District Health Board to manage hospital demand in South Auckland, New Zealand. A realist evaluation design was adopted to investigate what worked in the two campaigns and under what conditions.

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Urban stream biofilms are potential hotspots for resistomes and antibiotic resistance genes (ARGs). Biofilm communities that harbor resistance genes may be influenced by contaminant input (e.g.

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Purpose: The purpose of this paper is to identify five quality improvement initiatives for healthcare system leaders, produced by such leaders themselves, and to provide some guidance on how these could be implemented.

Design/methodology/approach: A multi-stage modified-Delphi process was used, blending the Delphi approach of iterative information collection, analysis and feedback, with the option for participants to revise their judgments.

Findings: The process reached consensus on five initiatives: change information privacy laws; overhaul professional training and work in the workplace; use co-design methods; contract for value and outcomes across health and social care; and use data from across the public and private sectors to improve equity for vulnerable populations and the sickest people.

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Sediment bacterial communities play a critical role in biogeochemical cycling in lotic ecosystems. Despite their ecological significance, the effects of urban discharge on spatiotemporal distribution of bacterial communities are understudied. In this study, we examined the effect of urban discharge on the spatiotemporal distribution of stream sediment bacteria in a northeast Ohio stream.

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Background: Quality improvement collaboratives (QIC) have proliferated internationally, but there is little empirical evidence for their effectiveness.

Method: We searched Medline, Embase, CINAHL, PsycINFO and the Cochrane Library databases from January 1995 to December 2014. Studies were included if they met the criteria for a QIC intervention and the Cochrane Effective Practice and Organisation of Care (EPOC) minimum study design characteristics for inclusion in a review.

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Purpose The purpose of this paper is to investigate the contextual factors contributing to the sustainability of healthcare quality improvement (QI) initiatives. Design/methodology/approach Themes from semi-structured interviews with international healthcare leaders are compared with Kaplan and Provost et al.'s (2012) model for understanding success in quality (MUSIQ).

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Background: Standardized perioperative care within an Enhanced Recovery After Surgery (ERAS) programme aims to reduce postoperative morbidity and length of hospital stay (LOS). This study evaluated the effect of ERAS in patients undergoing elective, primary total hip and knee arthroplasty (THA and TKA) in a New Zealand public hospital.

Methods: Data collected prospectively on patients who had undergone THA and TKA in an ERAS programme (ERAS: August-December 2013) were compared to a retrospective cohort of patients managed in a traditional perioperative care environment (control: June-August 2012).

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Aim: Central line-associated bacteraemia (CLAB) is a preventable cause of patient morbidity and mortality in intensive care units. Target CLAB Zero was a national campaign that ran from October 2011 to March 2013 across all New Zealand ICUs (intensive care units). The campaign aimed to reduce the national CLAB rate to less than one incident per 1,000 line days and to establish a national measurement system for CLAB.

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Objective: To examine whether being an organizer in a community organizing program improves personal agency and self-reported mental health outcomes among low-income Pacific Island youth in Auckland, New Zealand.

Method: Counties Manukau Health initiated a community organizing campaign led and run by Pacific Island youth. We used interviews, focus groups and pre- and post-campaign surveys to examine changes among 30 youths as a result of the campaign.

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Introduction: Effective communication is critical to successful large-scale change. Yet, in our experience, communications strategies are not formally incorporated into quality improvement (QI) frameworks. The 1000 Lives Campaign ('Campaign') was a large-scale national QI collaborative that aimed to save an additional 1000 lives and prevent 50 000 episodes of harm in Welsh health care over a 2-year period.

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Background: A 43-year-old African American male initially presented for a dental evaluation of a recurrent swelling on the buccal aspect of tooth #12. His medical history was unremarkable except for a 20-pack year history of smoking. He was eventually diagnosed as having a necrotic pulp #12, and received root canal treatment.

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Quality improvement in specialist services such as clinical genetics is challenging largely due to the complexity of the service and the difficulty in obtaining accurate, reproducible, and measurable data. The objectives were to evaluate the pattern of referrals to the All Wales Medical Genetics Service (AWMGS) North Wales Genetics team based in three separate hospitals, define the capacity of the team and implement change to improve equity, timeliness and efficiency of care delivery to patients. The methodology required collating the monthly referral rates retrospectively for each center over a 2.

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The range and demand for clinical genetic services will continue to grow, and now is an ideal time to assess current service quality. Based on the previous work of quality professional organizations such as the Institute of Medicine (IOM) and The Joint Commission on the Accreditation of Healthcare Organizations (JCAHO) which is now known as The Joint Commission (TJC), an independent group of genetic and healthcare quality professionals (InheritQual) drafted and defined a list of potential quality indicators for clinical genetics. Perspectives on the appropriateness and the practicality of each indicator were surveyed and analyzed.

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One hundred and twenty-eight women undergoing assessment for genetic risk of breast/ovarian cancer completed questionnaires at entry into the assessment process and following risk provision. The key variable of interest was the level of intrusive worries at each time, and factors associated with the level of intrusive worries following risk provision. Based on the CARA model (Renner, Pers Soc Psychol Bull 30:384-396, 2004), it was expected that an unexpected risk assessment (whether good or bad) would result in high levels of intrusive thoughts.

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The study has three aims; firstly to establish if, having been informed of their risk status and that gene testing is inappropriate for them, low and moderate risk patients have misunderstood or failed to grasp this and want a test that is inappropriate for them. Secondly, to elicit patients' willingness to pay for cancer genetic services. Thirdly, to ascertain the aspects of cancer genetics services that are important to high risk patients and present service configurations prioritised in terms of preferences accompanied by their costs (cost-consequences analysis).

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This study identified levels of distress, and predictors of levels of distress, in women undergoing assessment for genetic risk of breast/ovarian cancer based on their family history. It comprised a cohort study following 154 women who completed questionnaires at entry into a cancer genetic assessment programme and following risk provision. Independent significant associates of anxiety following risk provision were age, neuroticism, feeling hopeless about developing cancer, a perceived lack of control over developing cancer, lack of a social confidant, and a coping response involving acceptance/resignation.

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Rationale: Patients concerned about a family history of breast cancer can face difficult decisions about screening, prophylactic surgery and genetic testing. Decision aids can facilitate patient decision making and currently include leaflets and computerized tools. These are largely aimed at the North American market.

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