Portfolio of compositions with commentary

The 'Portfolio of Compositions' comprises three works, 'Contretemps', 'Awaken' and 'The Pit and the Pendulum', all of which share a common origin, a point of conception. The circumstances of their inception and subsequent development are explained in the commentary, a document which also sets out in an attempt to contextualise the relationship, diversity and scope of their respective content, through reference to both the commonality of the compositional stimulus and the precepts of my research plan. The main focus of the portfolio, 'The Pit and the Pendulum', is a work of operatic stature, inspired by a short story of the same name by Edgar Allan Poe. The two shorter pieces were completed first, but were also, however, born out of the beginnings of the major work; a few pages of orchestral score, scribbled quickly, the result of my initial emotional response to Poe's opening lines. Pages that survive virtually unchanged in the final orchestration, setting the 'harmonic' scene for the unfolding tale. Developing an interest in the complex and algorithmic properties of effective or fulfilling musical ‘line’, I wondered if there might be found, in Poe’s written prose, some suggestion of a literary equivalence of melodic line and counterpoint, mirrored in his narrative style. The objectives of my research questions, then, are as follows: The production of a large-scale musical composition, created entirely in artistic response to Edgar Allen Poe’s short tale. The composition shall sit within the restrictive framework of Poe’s unaltered narrative: the perceived spoken rhythm of each line of his prose, at first carefully transcribed as a stream of un-pitched notation, thereby providing a clearly defined stimulus for subsequent melodic and harmonic development. This ‘musicalisation’ to be inspired by the characteristics and style of Poe’s narrative content, fully preserved and presented, verbatim, in the finished work as the vocal line. Through intertextual exposition, it is anticipated that some justification of my postulations on Poe’s method might be revealed. The process has generated an outcome for further discussion; a portfolio of three discrete compositions, all inspired by the same source and which can be directly related to each other through reflective consideration and articulation of the creative process

Synthesis, Structure of Nitrogen-Containing Phosphinogold(I) Ferrocenes. In vitro Activity against Bladder and Colon Carcinoma Cell Lines

The gold salt [(tht)AuCl] was reacted with [1-N,N-dimethylaminométhyl-2-diphenylphosphino]ferrocene (1) forming the bimetallic derivative 4. The reaction of methyl iodide and tetramethylammonium bromide on the chloride 4 produced the ammonium salt 5 and the bromide 6 respectively. New aminophosphines 2 and 3, which represent two of the rare phosphorylated metallocenes containing P(III)-N bond have also been coordinated to gold(I) to form 7 and 8. The presence of the ethoxy group in 7 provides evidence for the lability of one nitrogen-phosphorus bond. The X-ray structure of compounds 4 and 7 have been established. Both crystallize in space group P21/c, monoclinic, with a = 11.095(2) Å, b = 12.030(3) Å, c = 17.763(4) Å, β= 94.02(2)∘, Z = 4 for 4 and a = 14.863(3) Å, b = 8.036(5)Å, c = 18.062(5)Å, β =101.64(1)°, Z = 4 for 7. 197Au Mössbauer data are in good agreement with those for other linear P-Au-Cl containing complexes. The compounds were evaluated for in vitro anti-tumour activity against two human tumours. Differential cytotoxicity was observed with activity comparable to cisplatin, with the exception of one compound which was significantly more cytotoxic

Multisensory gaze stabilization in response to subchronic alteration of vestibular type I hair cells

The functional complementarity of the vestibulo-ocular reflex (VOR) and optokinetic reflex (OKR) allows for optimal combined gaze stabilization responses (CGR) in light. While sensory substitution has been reported following complete vestibular loss, the capacity of the central vestibular system to compensate for partial peripheral vestibular loss remains to be determined. Here, we first demonstrate the efficacy of a 6-week subchronic ototoxic protocol in inducing transient and partial vestibular loss which equally affects the canal- and otolith-dependent VORs. Immunostaining of hair cells in the vestibular sensory epithelia revealed that organ-specific alteration of type I, but not type II, hair cells correlates with functional impairments. The decrease in VOR performance is paralleled with an increase in the gain of the OKR occurring in a specific range of frequencies where VOR normally dominates gaze stabilization, compatible with a sensory substitution process. Comparison of unimodal OKR or VOR versus bimodal CGR revealed that visuo-vestibular interactions remain reduced despite a significant recovery in the VOR. Modeling and sweep-based analysis revealed that the differential capacity to optimally combine OKR and VOR correlates with the reproducibility of the VOR responses. Overall, these results shed light on the multisensory reweighting occurring in pathologies with fluctuating peripheral vestibular malfunction

Emetic toxin-producing strains of Bacillus cereus show distinct characteristics within the Bacillus cereus group.

One hundred representative strains of Bacillus cereus were selected from a total collection of 372 B. cereus strains using two typing methods (RAPD and FT-IR) to investigate if emetic toxin-producing hazardous B. cereus strains possess characteristic growth and heat resistance profiles. The strains were classified into three groups: emetic toxin (cereulide)-producing strains (n=17), strains connected to diarrheal foodborne outbreaks (n=40) and food-environment strains (n=43), these latter not producing the emetic toxin. Our study revealed a shift in growth limits towards higher temperatures for the emetic strains, regardless of their origin. None of the emetic toxin-producing strains were able to grow below 10 degrees Celsius. In contrast, 11% (9 food-environment strains) out of the 83 non-emetic toxin-producing strains were able to grow at 4 degrees Celsius and 49% at 7 degrees Celsius (28 diarrheal and 13 food-environment strains). non-emetic toxin-producing strains. All emetic toxin-producing strains were able to grow at 48 degrees Celsius, but only 39% (16 diarrheal and 16 food-environment strains) of the non-emetic toxin-producing strains grew at this temperature. Spores from the emetic toxin-producing strains showed, on average, a higher heat resistance at 90 degrees Celsius and a lower germination, particularly at 7 degrees Celsius, than spores from the other strains. No difference between the three groups in their growth kinetics at 24 degrees Celsius, 37 degrees Celsius, and pH 5.0, 7.0, and 8.0 was observed. Our survey shows that emetic toxin-producing strains of B. cereus have distinct characteristics, which could have important implication for the risk assessment of the emetic type of B. cereus caused food poisoning. For instance, emetic strains still represent a special risk in heat-processed foods or preheated foods that are kept warm (in restaurants and cafeterias), but should not pose a risk in refrigerated foods

“So, I try not to go…” Acute-on-chronic breathlessness and presentation to the emergency department: in-depth interviews with patients, carers and clinicians

Context: People with acute-on-chronic breathlessness due to cardiorespiratory conditions frequently present to the emergency department (ED) causing burden for the person concerned, their care takers, and emergency services. Objective: To understand the reasons for ED presentation for acute-on-chronic breathlessness and how optimal care might avoid presentations. Methods: Qualitative in-depth linked interviews were conducted as part of a mixed-methods study. Transcripts of audio-recordings were subjected to thematic analysis. Consenting patients presenting to a single tertiary hospital ED with acute-on-chronic breathlessness able to be interviewed were eligible. Patient-participants (n = 18) were purposively sampled for maximum variation. Patient-participant–nominated carers (n = 9) and clinicians (n = 8) were recruited. Results: Theme 1: “The context for the decision to present to the ED” is the experience of acute-on-chronic breathlessness, in which a person faces an existential crisis not knowing where the next breath is coming from, and previous help-seeking experiences. Theme 2 (“Reasons for presentation”): Some were reluctant to seek help until crisis when family carers were often involved in the decision to present. Others had previous poor experiences of help-seeking for breathlessness in the community and turned to the ED by default. Some had supportive primary clinicians and presented to the ED either on their clinician's recommendation or because their clinician was unavailable. Conclusions: The decision to present to the ED is made in the context of serious crisis and previous experiences. Discussion of the reason for presentation may enable better management of chronic breathlessness and reduce the need for future emergency presentation

Cross-national mixed methods comparative case study of recovery-focused mental health care planning and coordination in acute inpatient mental health settings (COCAPP-A)

Background: Serious concerns have been identified in relation to care planning, patient involvement and consent to treatment in mental health wards, including for those patients detained under the Mental Health Act. Further evidence is needed to develop care planning interventions that embed dignity, recovery and participation for all people using inpatient mental health care. Design: We propose to undertake a cross-national comparative study of recovery-focused mental health care planning in inpatient settings. This two-phase exploratory mixed methods study will produce theory and empirical evidence to complement that developed in our current study of community mental health services to inform a future whole systems intervention study. The study is guided by a theoretical framework emphasising the connections between different 'levels' of organisation (macro/meso/micro). In phase 1 we study the macro-level through the comparative analysis of English and Welsh policy contexts. In phase 2 concurrent quantitative and qualitative data will be collected at 6 NHS Trust/Health Board case study sites (meso-level) and within each site, a single micro-level mental health ward will be selected to provide in-depth qualitative data related to care planning processes. Phase 1: We will extend our current meta-narrative mapping review (Wong et al 2013) of English and Welsh policies and the international literature on personalised recovery-oriented care planning and coordination in community settings to include inpatient settings. We will provide a review of evidence that is useful, rigorous and relevant for service providers and decision-makers and to inform Phase 2. Phase 2: We are employing a concurrent transformative mixed methods approach with embedded case studies (Creswell 2009: 215). We will conduct six in-depth meso-level case study investigations across contrasting NHS Trusts in England (n=4) and Local Health Boards in Wales (n=2), selected to reflect variety in geography and population and include a mix of rural, urban and inner city settings providing routine inpatient care. A large sample of service users (total n=300), inpatient staff (n=300) and informal carers (n=150) will be surveyed about perceptions of acute mental health care and care planning, recovery oriented practices, therapeutic relationships and empowerment using validated questionnaires. Documents and interviews with managers, consultant psychiatrists, ward staff and informal carers (n=60) will also be generated relating to local contexts, policies and practices. In each site we will also select a single inpatient ward and conduct a series of case studies embedded within each organisational case study, to explore care planning in detail. We will invite a sample of service users (total n=36) to participate in in-depth interviews about care planning and structured narrative reviews of their care plans; undertake a structured review of anonymised care plans for a further sample (n=60) of consecutively discharged patients; and conduct observation of care planning processes (n= 18). Framework method will be employed to integrate and compare textual and statistical summaries of qualitative and quantitative analyses within each case study site, informed by the theoretical framework focused on recovery and personalisation. Armed with our set of six within-case analyses we will then conduct a cross-case analysis to draw out key findings from across all sites

A verification framework for interannual-to-decadal predictions experiments

Decadal predictions have a high profile in the climate science community and beyond, yet very little is known about their skill. Nor is there any agreed protocol for estimating their skill. This paper proposes a sound and coordinated framework for verification of decadal hindcast experiments. The framework is illustrated for decadal hindcasts tailored to meet the requirements and specifications of CMIP5 (Coupled Model Intercomparison Project phase 5). The chosen metrics address key questions about the information content in initialized decadal hindcasts. These questions are: (1) Do the initial conditions in the hindcasts lead to more accurate predictions of the climate, compared to un-initialized climate change projections? and (2) Is the prediction model’s ensemble spread an appropriate representation of forecast uncertainty on average? The first question is addressed through deterministic metrics that compare the initialized and uninitialized hindcasts. The second question is addressed through a probabilistic metric applied to the initialized hindcasts and comparing different ways to ascribe forecast uncertainty. Verification is advocated at smoothed regional scales that can illuminate broad areas of predictability, as well as at the grid scale, since many users of the decadal prediction experiments who feed the climate data into applications or decision models will use the data at grid scale, or downscale it to even higher resolution. An overall statement on skill of CMIP5 decadal hindcasts is not the aim of this paper. The results presented are only illustrative of the framework, which would enable such studies. However, broad conclusions that are beginning to emerge from the CMIP5 results include (1) Most predictability at the interannual-to-decadal scale, relative to climatological averages, comes from external forcing, particularly for temperature; (2) though moderate, additional skill is added by the initial conditions over what is imparted by external forcing alone; however, the impact of initialization may result in overall worse predictions in some regions than provided by uninitialized climate change projections; (3) limited hindcast records and the dearth of climate-quality observational data impede our ability to quantify expected skill as well as model biases; and (4) as is common to seasonal-to-interannual model predictions, the spread of the ensemble members is not necessarily a good representation of forecast uncertainty. The authors recommend that this framework be adopted to serve as a starting point to compare prediction quality across prediction systems. The framework can provide a baseline against which future improvements can be quantified. The framework also provides guidance on the use of these model predictions, which differ in fundamental ways from the climate change projections that much of the community has become familiar with, including adjustment of mean and conditional biases, and consideration of how to best approach forecast uncertainty