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1.
BMC Psychiatry ; 22(1): 545, 2022 08 12.
Artigo em Inglês | MEDLINE | ID: mdl-35953808

RESUMO

BACKGROUND: More than half of people who use antipsychotic medication for psychosis report having sexual dysfunction. The REMEDY trial aimed to find out if switching antipsychotic medication provides an effective way to reduce sexual dysfunction among people with psychosis. We set out to recruit 216 participants over a two-year period, but recruitment was stopped after an extended 12-month pilot phase, during which we recruited only 10 participants. As part of a nested process evaluation, we conducted qualitative interviews with front-line clinicians to examine barriers to recruitment to the trial. METHODS: We developed a semi-structured interview schedule to explore staff views on factors that influenced whether they referred potential participants to the study. We interviewed a purposive sample of 51 staff from four National Health Service (NHS) Trusts in England, ensuring a range of different backgrounds, seniority, and levels of involvement in the trial. Audio recordings of interviews were transcribed for verbatim, and data were analysed using an inductive approach to thematic analysis. RESULTS: Nine interconnected themes were generated. Six themes concerned barriers to recruitment; including; prioritising patients' mental stability, mutual discomfort and embarrassment about discussing a "taboo" subject, and concerns about unintended consequences of asking people with psychosis about their sexual functioning. Three themes, including the quality of treatment relationships and strategies for opening dialogue suggested ways to improve recognition of these "hidden" side effects. CONCLUSION: The identification and management of sexual dysfunction among people with psychosis are not priorities for mental health services in England at this time. Many staff working in front-line services feel unprepared and uncomfortable asking people with psychosis about these problems. While greater use of screening tools may improve the identification of sexual dysfunction among people with psychosis, the evaluation and implementation of interventions to manage them will continue to be challenging unless NHS leaders and senior clinicians demonstrate greater commitment to changing current clinical practice. TRIAL REGISTRATION: Current Controlled Trials ISRCTN12307891.


Assuntos
Antipsicóticos , Serviços de Saúde Mental , Transtornos Psicóticos , Antipsicóticos/uso terapêutico , Humanos , Transtornos Psicóticos/complicações , Transtornos Psicóticos/diagnóstico , Transtornos Psicóticos/tratamento farmacológico , Encaminhamento e Consulta , Medicina Estatal
2.
PLoS One ; 14(4): e0214715, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30964883

RESUMO

England's national Improving Access to Psychological Therapies (IAPT) programme advocates stepped care as its organizational delivery of psychological therapies to common mental health problems. There is limited evidence regarding the efficacy of stepped care as a service delivery model, heterogeneity of definition and differences in model implementation in both research and routine practice, hence outcome comparison in terms of effectiveness of model is difficult. Despite sound evidence of the efficacy of low intensity interventions there appears to be a perpetuation of the notion that severity and complexity should only be treated by a high intensity intervention through the continuation of a stratified care model. Yet no psychotherapy treatment is found to be more superior to another, and not enough is known about what works for whom to aid the matching of treatment decision. In the absence of understanding precise treatment factors optimal for recovery, it may be useful to better understand the impact of a service delivery model, and whether different models achieve different outcomes. This study aims to contribute to the discussion regarding the stepped care definition and delivery, and explores the impact on clinical outcomes where different types of stepped care have been implemented within the same service. An observational cohort study analysed retrospective data (n = 16,723) over a 4 year period, in a single IAPT service, where delivery changed from one type of stepped care model to another. We compared the outcomes of treatment completers with a stratified care model and a progression care model. We also explored the assumption that patients who score severe on psychological measures, and therefore are potentially complex, would achieve better outcomes in a stratified model. Outcomes in each model type were compared, alongside baseline factor variables. A significant association was observed between a recovery outcome and model type, with patients 1.5 times more likely to recover in the progression delivery model. The potential implications are that with a progression stepped care model of service delivery, more patients can be treated with a lower intensity intervention, even with initial severe presentations, ensuring that only those that need high intensity CBT or equivalent are stepped up. This could provide services with an effective clinical model that is efficient and potentially more cost effective.


Assuntos
Transtornos de Ansiedade/terapia , Depressão/terapia , Psicoterapia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Transtornos de Ansiedade/patologia , Assistência Integral à Saúde , Depressão/patologia , Inglaterra , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Índice de Gravidade de Doença , Resultado do Tratamento , Adulto Jovem
3.
Lancet Psychiatry ; 6(5): 379-390, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30975539

RESUMO

BACKGROUND: People with severe mental illnesses such as schizophrenia are three times more likely to smoke than the wider population, contributing to widening health inequalities. Smoking remains the largest modifiable risk factor for this health inequality, but people with severe mental illness have not historically engaged with smoking cessation services. We aimed to test the effectiveness of a combined behavioural and pharmacological smoking cessation intervention targeted specifically at people with severe mental illness. METHODS: In the smoking cessation intervention for severe mental illness (SCIMITAR+) trial, a pragmatic, randomised controlled study, we recruited heavy smokers with bipolar disorder or schizophrenia from 16 primary care and 21 community-based mental health sites in the UK. Participants were eligible if they were aged 18 years or older, and smoked at least five cigarettes per day. Exclusion criteria included substantial comorbid drug or alcohol problems and people who lacked capacity to consent at the time of recruitment. Using computer-generated random numbers, participants were randomly assigned (1:1) to a bespoke smoking cessation intervention or to usual care. Participants, mental health specialists, and primary care physicians were unmasked to assignment. The bespoke smoking cessation intervention consisted of behavioural support from a mental health smoking cessation practitioner and pharmacological aids for smoking cessation, with adaptations for people with severe mental illness-such as, extended pre-quit sessions, cut down to quit, and home visits. Access to pharmacotherapy was via primary care after discussion with the smoking cessation specialist. Under usual care participants were offered access to local smoking cessation services not specifically designed for people with severe mental illnesses. The primary endpoint was smoking cessation at 12 months ascertained via carbon monoxide measurements below 10 parts per million and self-reported cessation for the past 7 days. Secondary endpoints were biologically verified smoking cessation at 6 months; number of cigarettes smoked per day, Fagerström Test for Nicotine Dependence (FTND) and Motivation to Quit (MTQ) questionnaire; general and mental health functioning determined via the Patient Health Questionnaire-9 (PHQ-9), the Generalised Anxiety Disorder-7 (GAD-7) questionnaire, and 12-Item Short Form Health Survey (SF-12); and body-mass index (BMI). This trial was registerd with the ISRCTN registry, number ISRCTN72955454, and is complete. FINDINGS: Between Oct 7, 2015, and Dec 16, 2016, 526 eligible patients were randomly assigned to the bespoke smoking cessation intervention (n=265) or usual care (n=261). 309 (59%) participants were male, median age was 47·2 years (IQR 36·3-54·5), with high nicotine dependence (mean 24 cigarettes per day [SD 13·2]), and the most common severe mental disorders were schizophrenia or other psychotic illness (n=343 [65%]), bipolar disorder (n=115 [22%]), and schizoaffective disorder (n=66 [13%]). 234 (88%) of intervention participants engaged with the treatment programme and attended 6·4 (SD 3·5) quit smoking sessions, with an average duration of 39 min (SD 17; median 35 min, range 5-120). Verified quit data at 12 months were available for 219 (84%) of 261 usual care and 223 (84%) of 265 intervention participants. The proportion of participants who had quit at 12 months was higher in the intervention group than in the usual care group, but non-significantly (34 [15%] of 223 [13% of those assigned to group] vs 22 [10%] of 219 [8% of those assigned to group], risk difference 5·2%, 95% CI -1·0 to 11·4; odds ratio [OR] 1·6, 95% CI 0·9 to 2·9; p=0·10). The proportion of participants who quit at 6 months was significantly higher in the intervention group than in the usual care group (32 [14%] of 226 vs 14 [6%] of 217; risk difference 7·7%, 95% CI 2·1 to 13·3; OR 2·4, 95% CI 1·2 to 4·6; p=0·010). The incidence rate ratio for number of cigarettes smoked per day at 6 months was 0·90 (95% CI 0·80 to 1·01; p=0·079), and at 12 months was 1·00 (0·89 to 1·13; p=0·95). At both 6 months and 12 months, the intervention group was non-significantly favoured in the FTND (adjusted mean difference 6 months -0·18, 95% CI -0·53 to 0·17, p=0·32; and 12 months -0·01, -0·39 to 0·38, p=0·97) and MTQ questionnaire (adjusted mean difference 0·58, -0·01 to 1·17, p=0·056; and 12 months 0·64, 0·04 to 1·24, p=0·038). The PHQ-9 showed no difference between the groups (adjusted mean difference at 6 months 0·20, 95% CI -0·85 to 1·24 vs 12 months -0·12, -1·18 to 0·94). For the SF-12 survey, we saw evidence of improvement in physical health in the intervention group at 6 months (adjusted mean difference 1·75, 95% CI 0·21 to 3·28), but this difference was not evident at 12 months (0·59, -1·07 to 2·26); and we saw no difference in mental health between the groups at 6 or 12 months (adjusted mean difference at 6 months -0·73, 95% CI -2·82 to 1·36, and 12 months -0·41, -2·35 to 1·53). The GAD-7 questionnaire showed no difference between the groups (adjusted mean difference at 6 months -0·32 95% CI -1·26 to 0·62 vs 12 months -0·10, -1·05 to 0·86). No difference in BMI was seen between the groups (adjusted mean difference 6 months 0·16, 95% CI -0·54 to 0·85; 12 months 0·25, -0·62 to 1·13). INTERPRETATION: This bespoke intervention is a candidate model of smoking cessation for clinicians and policy makers to address high prevalence of smoking. The incidence of quitting at 6 months shows that smoking cessation can be achieved, but the waning of this effect by 12 months means more effort is needed for sustained quitting. FUNDING: National Institute for Health Research Health Technology Assessment Programme.


Assuntos
Transtorno Bipolar/complicações , Esquizofrenia/complicações , Abandono do Hábito de Fumar/métodos , Fumar/terapia , Adulto , Transtorno Bipolar/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Autorrelato , Fumar/psicologia , Resultado do Tratamento , Reino Unido
4.
Ther Adv Psychopharmacol ; 6(6): 369-381, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28008350

RESUMO

BACKGROUND: Lamotrigine is an anticonvulsant as well as a mood stabilizer. Apart from its established use in the treatment of epilepsy, there has been an expansion of its use in the treatment of mental disorders. Patients with epilepsy as well as those with mental disorders are at increased risk of deliberate drug overdoses. An evidence base for the safety profile of lamotrigine in overdose is an essential tool for prescribers. The objective of this study was to carry out a narrative synthesis of the existing evidence for the safety profile of lamotrigine in overdose. METHODS: A systematic search was conducted of EMBASE (1974 to December 2015), MEDLINE (1946 to December 2015), PsycINFO (1806 to December 2015) and CINAHL (1981 to December 2015) databases. Studies were included in which there was a deliberate or accidental single drug overdose of lamotrigine, with its toxic effects described. Studies that did not involve an overdose were excluded. A narrative synthesis of the described toxic effects was carried out. RESULTS: Out of 562 articles identified, 26 studies were included, mainly in the form of case reports and series. The most commonly described toxic effects of lamotrigine were on the central nervous system, specifically seizures, movement disorders and reduced consciousness. Other toxic effects included QTc interval and QRS complex prolongations, hypersensitivity reactions, serotonin syndrome as well as rhabdomyolysis possibly due to seizures and/or agitation. Deaths were recorded in two studies, with cardiovascular and neurological toxic effects described. CONCLUSIONS: Even though lamotrigine has been reported to be well tolerated, there is a risk of toxic effects which can be life threatening in overdose. This needs to be borne in mind when prescribing to patients at an increased risk of deliberate drug overdose.

5.
Health Technol Assess ; 20(52): 1-250, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27431341

RESUMO

BACKGROUND: If effective, less intensive treatments for people with personality disorder have the potential to serve more people. OBJECTIVES: To compare the clinical effectiveness and cost-effectiveness of psychoeducation with problem-solving (PEPS) therapy plus usual treatment against usual treatment alone in improving social problem-solving with adults with personality disorder. DESIGN: Multisite two-arm, parallel-group, pragmatic randomised controlled superiority trial. SETTING: Community mental health services in three NHS trusts in England and Wales. PARTICIPANTS: Community-dwelling adults with any personality disorder recruited from community mental health services. INTERVENTIONS: Up to four individual sessions of psychoeducation, a collaborative dialogue about personality disorder, followed by 12 group sessions of problem-solving therapy to help participants learn a process for solving interpersonal problems. MAIN OUTCOME MEASURES: The primary outcome was measured by the Social Functioning Questionnaire (SFQ). Secondary outcomes were service use (general practitioner records), mood (measured via the Hospital Anxiety and Depression Scale) and client-specified three main problems rated by severity. We studied the mechanism of change using the Social Problem-Solving Inventory. Costs were identified using the Client Service Receipt Inventory and quality of life was identified by the European Quality of Life-5 Dimensions questionnaire. Research assistants blinded to treatment allocation collected follow-up information. RESULTS: There were 739 people referred for the trial and 444 were eligible. More adverse events in the PEPS arm led to a halt to recruitment after 306 people were randomised (90% of planned sample size); 154 participants received PEPS and 152 received usual treatment. The mean age was 38 years and 67% were women. Follow-up at 72 weeks after randomisation was completed for 62% of participants in the usual-treatment arm and 73% in the PEPS arm. Intention-to-treat analyses compared individuals as randomised, regardless of treatment received or availability of 72-week follow-up SFQ data. Median attendance at psychoeducation sessions was approximately 90% and for problem-solving sessions was approximately 50%. PEPS therapy plus usual treatment was no more effective than usual treatment alone for the primary outcome [adjusted difference in means for SFQ -0.73 points, 95% confidence interval (CI) -1.83 to 0.38 points; p = 0.19], any of the secondary outcomes or social problem-solving. Over the follow-up, PEPS costs were, on average, £182 less than for usual treatment. It also resulted in 0.0148 more quality-adjusted life-years. Neither difference was statistically significant. At the National Institute for Health and Care Excellence thresholds, the intervention had a 64% likelihood of being the more cost-effective option. More adverse events, mainly incidents of self-harm, occurred in the PEPS arm, but the difference was not significant (adjusted incidence rate ratio 1.24, 95% CI 0.93 to 1.64). LIMITATIONS: There was possible bias in adverse event recording because of dependence on self-disclosure or reporting by the clinical team. Non-completion of problem-solving sessions and non-standardisation of usual treatment were limitations. CONCLUSIONS: We found no evidence to support the use of PEPS therapy alongside standard care for improving social functioning of adults with personality disorder living in the community. FUTURE WORK: We aim to investigate adverse events by accessing centrally held NHS data on deaths and hospitalisation for all PEPS trial participants. TRIAL REGISTRATION: Current Controlled Trials ISRCTN70660936. FUNDING: This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 20, No. 52. See the NIHR Journals Library website for further project information.


Assuntos
Relações Interpessoais , Transtornos da Personalidade/terapia , Resolução de Problemas , Psicoterapia/economia , Psicoterapia/métodos , Adulto , Serviços Comunitários de Saúde Mental/organização & administração , Análise Custo-Benefício , Feminino , Serviços de Saúde/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Qualidade de Vida , Anos de Vida Ajustados por Qualidade de Vida , Método Simples-Cego , Medicina Estatal , Reino Unido
9.
Health Place ; 33: 83-9, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25796009

RESUMO

We examine emotional reactions to changes to medical spaces of care, linked with past experiences. In this paper we draw on findings from a qualitative study of the transfer of psychiatric inpatient care from an old to a newly built facility. We show how the meanings attributed to 'therapeutic landscapes' from one׳s past can evoke emotions and memories, manifesting in ideas about nostalgia, solastalgia, salvage and abandonment, which can impinge on one׳s present therapeutic experience. We reflect on how consideration of these ideas might contribute to better future design of psychiatric inpatient facilities and the wellbeing of those using them.


Assuntos
Emoções , Arquitetura Hospitalar/métodos , Hospitais Psiquiátricos , Humanos , Transtornos Mentais/psicologia , Transtornos Mentais/terapia , Pesquisa Qualitativa
10.
J Ment Health ; 24(3): 140-4, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25643153

RESUMO

BACKGROUND: Harm in mental health has traditionally been viewed as "unambiguous" and measured in terms of suicide, self-harm, self-neglect and violence. In order to develop an organisational patient safety strategy, one Trust engaged with service users, carers and senior clinicians and managers in order to understand how they define harm. AIM: To explore the meaning of harm in a mental health and learning disabilities setting. METHOD: This paper describes the outcome of service improvement work with service users, carers, senior clinicians and managers at one Trust to determine what harm meant to them. RESULTS: Harm is a concept which is broader than elements currently seen within organisational patient safety metrics and clinical risk assessments. CONCLUSIONS: Taking into account the diverse feedback received about what constitutes harm, a more inclusive definition emerges which could be incorporated into a new framework for risk management, balancing risk of harms across multiple dimensions. This approach has the potential to bring together consideration of the risk and recovery agendas.


Assuntos
Serviços de Saúde Mental/normas , Saúde Mental , Segurança do Paciente , Comportamento Autodestrutivo/epidemiologia , Comportamento Autodestrutivo/prevenção & controle , Humanos , Medição de Risco , Fatores de Risco
13.
PLoS One ; 9(3): e90169, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24670976

RESUMO

OBJECTIVE: Lithium users are offered routine renal monitoring but few studies have quantified the risk to renal health. The aim of this study was to assess the association between use of lithium carbonate and incidence of renal failure in patients with bipolar disorder. METHODS: This was a retrospective cohort study using the General Practice Research Database (GPRD) and a nested validation study of lithium exposure and renal failure. A cohort of 6360 participants aged over 18 years had a first recorded diagnosis of bipolar disorder between January 1, 1990 and December 31, 2007. Data were examined from electronic primary care records from 418 general practices across the UK. The primary outcome was the hazard ratio for renal failure in participants exposed to lithium carbonate as compared with non-users of lithium, adjusting for age, gender, co-morbidities, and poly-pharmacy. RESULTS: Ever use of lithium was associated with a hazard ratio for renal failure of 2.5 (95% confidence interval 1.6 to 4.0) adjusted for known renal risk factors. Absolute risk was age dependent, with patients of 50 years or older at particular risk of renal failure: Number Needed to Harm (NNH) was 44 (21 to 150). CONCLUSIONS: Lithium is associated with an increased risk of renal failure, particularly among the older age group. The absolute risk of renal failure associated with lithium use remains small.


Assuntos
Transtorno Bipolar/tratamento farmacológico , Lítio/efeitos adversos , Lítio/uso terapêutico , Insuficiência Renal/induzido quimicamente , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Biológicos , Modelos de Riscos Proporcionais , Reprodutibilidade dos Testes , Estudos Retrospectivos , Fatores de Risco , Análise de Sobrevida , Resultado do Tratamento , Suspensão de Tratamento , Adulto Jovem
14.
Personal Ment Health ; 8(2): 91-101, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24431304

RESUMO

INTRODUCTION: A systematic literature review of studies measuring the prevalence of personality disorder in community secondary care is needed to identify both the met and unmet needs and plan services accordingly. METHODS: PsycINFO, MEDLINE and EMBASE databases were searched using NHS Evidence. Only studies assessing overall personality disorder prevalence within help-seeking, outpatient populations were included. Papers were excluded for focusing solely on the prevalence of specific personality disorders or comorbid prevalence within specific populations. RESULTS: A total of 269 papers were identified. Nine papers met criteria and were critically appraised, showing a high level of heterogeneity with regards to methods, inclusion criteria, source of information, time of assessment, instruments used and overall quality of research. Prevalence estimates in Europe varied between 40% and 92%, were more consistently approximated between 45% and 51% in the USA and differed significantly in the two Asian studies: 1.07% (India) and 60% (Pakistan). CONCLUSIONS: The prevalence of personality disorder in community mental health care appears to be substantial, but better estimates will only emerge from high quality studies with greater consistency of method. Implementing screening tools within outpatient or community services may result in high rates of personality disorder identification, with both clinical and service implications.


Assuntos
Pacientes Ambulatoriais/estatística & dados numéricos , Transtornos da Personalidade/epidemiologia , Assistência Ambulatorial/estatística & dados numéricos , Ásia Ocidental/epidemiologia , Europa (Continente)/epidemiologia , Humanos , Prevalência , Atenção Secundária à Saúde/estatística & dados numéricos , Estados Unidos/epidemiologia
15.
Soc Sci Med ; 97: 104-11, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24161095

RESUMO

This paper reports on research framed by theories of therapeutic landscapes and the ways that the social, physical and symbolic dimensions of landscapes relate to wellbeing and healing. We focus especially on the question of how attributes of therapeutic landscapes are constructed in different ways according to the variable perspectives of individuals and groups. Through an ethnographic case study in a psychiatric hospital in the North of England we explore the perceived significance for wellbeing of 'smoking spaces' (where tobacco smoking is practiced in ways that may, or may not be officially sanctioned). We interpret our findings in light of literature on how smoking spaces are linked to the socio-geographical power relations that determine how smoking is organised within the hospital and how this is understood by different groups using the hospital building. We draw on qualitative research findings from discussion groups, observations, and interviews with patients, carers and staff. These focused on their views about the building design and setting of the new psychiatric hospital in relation to their wellbeing, and issues relating to smoking spaces emerged as important for many participants. Creating and managing smoking spaces as a public health measure in psychiatric hospitals is shown to be a controversial issue involving conflicting aims for health and wellbeing of patients and staff. Our findings indicate that although from a physical health perspective, smoking is detrimental, the spaces in which patients and staff smoke have social and psychological significance, providing a forum for the creation of social capital and resistance to institutional control. While the findings relate to one case study setting, the paper illustrates issues of wider relevance and contributes to an international literature concerning the tensions between perceived psychological and psychosocial benefits of smoking vs. physical harm that smoking is likely to cause. We consider the implications for hospital design and the model of care.


Assuntos
Atitude do Pessoal de Saúde , Atitude Frente a Saúde , Arquitetura Hospitalar , Hospitais Psiquiátricos , Pacientes Internados/psicologia , Transtornos Mentais/terapia , Fumar/psicologia , Humanos , Poder Psicológico , Pesquisa Qualitativa , Apoio Social , Resultado do Tratamento , Reino Unido
16.
Soc Sci Med ; 91: 122-9, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23261254

RESUMO

Although there has been a shift toward treatment in the home and the community, in the UK, inpatient facilities are still important in modern mental health care. 'Informal carers', including family members, often play an essential role, not only in providing care in the community but also in care of patients during periods of hospitalisation. UK National Health Service policies increasingly consider the position of these carers as 'partners' in the care process, but relatively little attention has been paid to their position within the hospital settings where treatment is provided for inpatients. This paper contributes to geographical work on carers experiences, by reporting how this issue emerged through a study focused on perceptions of a newly built hospital, compared with the inpatient facilities it replaced. We draw on qualitative research findings from discussion groups and interviews with informal carers. The material considered here focused especially on carers' views of aspects of the hospital environment that were important for wellbeing of carers and the people they look after. The carers' views were supplemented by relevant material drawn from other interviews from our wider study, which included service users and members of hospital staff. These accounts revealed how informal carers experienced the hospital environment; we interpret our findings through a conceptual framework that emphasises carers' experiences of a 'journey' along a 'caring pathway' to and through the hospital space. This perspective allows us to make a connection between three bodies of literature. The first relates to phenomenological interpretations of one's environmental perception, formed as one moves through the world. The second derives from the literature concerning 'permeability' of hospital institutions. Bringing these ideas together provides an innovative, dynamic perspective on a third strand of literature from health geography that examines hospitals as 'therapeutic landscapes'. The analysis helps to explore the extent to which carers in this study were positioned as 'outsiders' in the hospital space.


Assuntos
Atitude Frente a Saúde , Cuidadores/psicologia , Arquitetura Hospitalar , Hospitais Psiquiátricos/organização & administração , Humanos , Pesquisa Qualitativa , Reino Unido
19.
Bioresour Technol ; 101(16): 6336-44, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20374975

RESUMO

Granular biofilms underpin the operation of several categories of anaerobic wastewater treatment bioreactors. Recent studies have demonstrated the feasibility of treating both industrial and domestic wastewaters at their discharge temperatures (usually <18 degrees C), thereby avoiding the heating expenses of mesophilic (20-45 degrees C) or thermophilic (45-65 degrees C) treatments. Previous low-temperature trials used mesophilic inocula and little information is available on the viability of low-temperature anaerobic granulation. Six laboratory-scale, expanded granular sludge bed bioreactors (R1-6) were operated at 15 degrees C (R1-2 and R4-5) and 37 degrees C (R3 and R6). R1-3 were fed glucose-based wastewater and R4-6 were fed volatile fatty acid-based wastewater. Quantitative real-time PCR and qualitative denaturing gradient gel electrophoresis of 16S rRNA genes identified the dominance of Methanomicrobiales (mainly Methanocorpusculum-like organisms) during low-temperature granulation. Granulation only occurred in glucose-fed bioreactors. The results suggest that (i) granulation is feasible in low-temperature bioreactors; (ii) carbohydrate decomposition likely favoured granulation, (iii) Methanocorpusculum-like organisms play a critical role in low-temperature granulation.


Assuntos
Anaerobiose , Biomassa , Reatores Biológicos , Temperatura Baixa , Resíduos Industriais , Microbiologia da Água , Poluentes da Água , Euryarchaeota/genética , Euryarchaeota/metabolismo , Reação em Cadeia da Polimerase , RNA Ribossômico 16S/genética
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