36 research outputs found

    Advancements Towards Single Site Information Storage and Processing Using HfO2 Resistive Random Access Memory (ReRAM)

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    Resistive Random Access Memory (ReRAM) has attracted much attention among researchers due to its fast switching speeds, lower switching voltages, and feasible integration into industry compatible CMOS processing. These characteristics make ReRAM a viable candidate for next-generation Non- Volatile Memory. Transition-Metal-Oxides have been proven to be excellent materials for ReRAM applications. This work investigates the effect of various, post-deposition anneals (PDA) on the switching parameters of Ni/Cu/HfO2/TiN Resistive Memory Devices (RMD). Results are presented in the form of a Small Business Innovation Research (SBIR) grant proposal. The use of the SBIR format emphasizes understanding of the experimental design, commercial viability, and broader impacts of ReRAM technology

    Video Evidence That London Infants Can Resettle Themselves Back to Sleep After Waking in the Night, as well as Sleep for Long Periods, by 3 Months of Age

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    Objective: Most infants become settled at night by 3 months of age, whereas infants not settled by 5 months are likely to have long-term sleep-waking problems. We assessed whether normal infant development in the first 3 months involves increasing sleep-period length or the ability to resettle autonomously after waking in the night. Methods: One hundred one infants were assessed at 5 weeks and 3 months of age using nighttime infrared video recordings and parental questionnaires. Results: The clearest development was in sleep length; 45% of infants slept continuously for 5 hours or more at night at 3 months compared with 10% at 5 weeks. In addition, around a quarter of infants woke and resettled themselves back to sleep in the night at each age. Autonomous resettling at 5 weeks predicted prolonged sleeping at 3 months suggesting it may be a developmental precursor. Infants reported by parents to sleep for a period of 5 hours or more included infants who resettled themselves and those with long sleeps. Three-month olds fed solely breast milk were as likely to self-resettle or have long sleep bouts as infants fed formula or mixed breast and formula milk. Conclusions: Infants are capable of resettling themselves back to sleep in the first 3 months of age; both autonomous resettling and prolonged sleeping are involved in “sleeping through the night” at an early age. Findings indicate the need for physiological studies of how arousal, waking, and resettling develop into sustained sleeping and of how environmental factors support these endogenous and behavioral processes

    Descriptive figures for differences in parenting and infant night-time distress in the first three months of age

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    AIM: To provide descriptive figures for infant distress and associated parenting at night in normal London home environments during the first three months of age. BACKGROUND: Most western infants develop long night-time sleep periods by 4 months of age. However, 30% of infants in many countries sleep for short periods and cry out on waking in the night: the most common type of infant sleep behaviour problem. Preventive interventions may help families and improve services. There is evidence that 'limit-setting' parenting, which is common in western cultures, supports the development of settled infant night-time behaviour. However, a recent review has challenged this and argued that this form of parenting risks distressing infants. This study describes limit-setting parenting as practiced in London, compares it with ‘infant-cued’ parenting, and measures the associated infant distress. METHODS: Longitudinal infra-red video, diary and questionnaire observations comparing a General-Community (n=101) group and subgroups with a Bed-Sharing (n=19) group on measures of infant and parenting behaviours at night. FINDINGS: General-Community parents took longer to detect and respond to infant waking and signalling, and to begin feeding, compared with the highly infant-cued care provided by Bed-Sharing parents. The average latency in General-Community parents' responding to infant night-time waking was 3.5 minutes, during which infants fuss/cried for around one minute. Compared with Bed-Sharing parenting, General-Community parenting was associated with increased infant distress of around 30 minutes per night at 2 weeks, reducing to 12 minutes per night by three months of age. However, differences in infant distress between General-Community subgroups adopting limit-setting versus infant-cued parenting were not large or statistically significant at any age. The figures provide descriptive evidence about limit-setting parenting which may counter some doubts about this form of parenting and help parents and professionals to make choices

    Video evidence that parenting methods predict which infants develop long night-time sleep periods by three months of age

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    Aim To examine two hypotheses about the longitudinal relationship between night-time parenting behaviours in the first few postnatal weeks and infant night-time sleep-waking at five weeks, three months and six months of age in normal London home environments. BACKGROUND: Most western infants develop long night-time sleep periods by four months of age. However, around 20-30% of infants in many countries continue to sleep for short periods and cry out on waking in the night: the most common type of infant sleep behaviour problem. Preventive interventions may help families and improve services. There is evidence that 'limit-setting' parenting, which is common in western cultures, supports the development of settled infant night-time behaviour. However, this evidence has been challenged. The present study measures three components of limit-setting parenting (response delay, feeding interval, settling method), examines their stability, and assesses the predictive relationship between each of them and infant sleep-waking behaviours. METHODS: Longitudinal observations comparing a General-Community (n=101) group and subgroups with a Bed-Sharing (n=19) group on infra-red video, diary and questionnaire measures of parenting behaviours and infant feeding and sleep-waking at night. Findings Bed-Sharing parenting was highly infant-cued and stable. General-Community parenting involved more limit-setting, but was less stable, than Bed-Sharing parenting. One element of General-Community parenting - consistently introducing a short interval before feeding - was associated with the development of longer infant night-time feed intervals and longer day-time feeds at five weeks, compared with other General-Community and Bed-Sharing infants. Twice as many General-Community infants whose parents introduced these short intervals before feeding in the early weeks slept for long night-time periods at three months of age on both video and parent-report measures, compared with other General-Community and Bed-Sharing infants. The findings' implications for our understanding of infant sleep-waking development, parenting programmes, and for practice and research, are discussed

    ‘Talking a different language’: an exploration of the influence of organizational cultures and working practices on transition from child to adult mental health services

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    Background: Organizational culture is manifest in patterns of behaviour underpinned by beliefs, values, attitudes and assumptions, which can influence working practices. Cultural factors and working practices have been suggested to influence the transition of young people moving from child to adult mental health services. Failure to manage and integrate transitional care effectively can lead to young people losing contact with health and social care systems, resulting in adverse effects on health, well-being and potential. Methods: The study aim was to identify the organisational factors which facilitate or impede transition of young people from child and adolescent mental health services (CAMHS) to adult mental health services (AMHS) from the perspective of health professionals and representatives of voluntary organisations. Specific objectives were (i) to explore organizational cultures, structures, processes and resources which influence transition from child to adult mental health services; (ii) identify factors which constitute barriers and facilitators to transition and continuity of care and (iii) make recommendations for service improvements. Within an exploratory, qualitative design thirty four semi-structured interviews were conducted with health and social care professionals working in CAMHS and AMHS in four NHS Mental Health Trusts and four voluntary organizations, in England. Results: A cultural divide appears to exist between CAMHS and AMHS, characterized by different beliefs, attitudes, mutual misperceptions and a lack of understanding of different service structures. This is exacerbated by working practices relating to communication and information transfer which could impact negatively on transition, relational, informational and cross boundary continuity of care. There is also evidence of a cultural shift, with some positive approaches to collaborative working across services and agencies, involving joint posts, parallel working, shared clinics and joint meetings. Conclusions: Cultural factors embodied in mutual misperceptions, attitudes, beliefs exist between CAMHS and AMHS. Working practices can exert either positive or negative effects on transition and continuity of care. Implementation of shared education and training, standardised approaches to record keeping and information transfer, supported by compatible IT resources are recommended, alongside management strategies which evaluate the achievement of outcomes related to transition and continuity of care

    Process, outcome and experience of transition from child to adult mental healthcare : multiperspective study

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    Background Many adolescents with mental health problems experience transition of care from child and adolescent mental health services (CAMHS) to adult mental health services (AMHS). Aims As part of the TRACK study we evaluated the process, outcomes and user and carer experience of transition from CAMHS to AMHS. Method We identified a cohort of service users crossing the CAMHS/AMHS boundary over 1 year across six mental health trusts in England. We tracked their journey to determine predictors of optimal transition and conducted qualitative interviews with a subsample of users, their carers and clinicians on how transition was experienced. Results Of 154 individuals who crossed the transition boundary in 1 year, 90 were actual referrals (i.e. they made a transition to AMHS), and 64 were potential referrals (i.e. were either not referred to AMHS or not accepted by AMHS). Individuals with a history of severe mental illness, being on medication or having been admitted were more likely to make a transition than those with neurodevelopmental disorders, emotional/neurotic disorders and emerging personality disorder. Optimal transition, defined as adequate transition planning, good information transfer across teams, joint working between teams and continuity of care following transition, was experienced by less than 5% of those who made a transition. Following transition, most service users stayed engaged with AMHS and reported improvement in their mental health. Conclusions For the vast majority of service users, transition from CAMHS to AMHS is poorly planned, poorly executed and poorly experienced. The transition process accentuates pre-existing barriers between CAMHS and AMH

    'Talking a different language': an exploration of the influence of organizational cultures and working practices on transition from child to adult mental health services.

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    BACKGROUND: Organizational culture is manifest in patterns of behaviour underpinned by beliefs, values, attitudes and assumptions, which can influence working practices. Cultural factors and working practices have been suggested to influence the transition of young people moving from child to adult mental health services. Failure to manage and integrate transitional care effectively can lead to young people losing contact with health and social care systems, resulting in adverse effects on health, well-being and potential. METHODS: The study aim was to identify the organisational factors which facilitate or impede transition of young people from child and adolescent mental health services (CAMHS) to adult mental health services (AMHS) from the perspective of health professionals and representatives of voluntary organisations. Specific objectives were (i) to explore organizational cultures, structures, processes and resources which influence transition from child to adult mental health services; (ii) identify factors which constitute barriers and facilitators to transition and continuity of care and (iii) make recommendations for service improvements. Within an exploratory, qualitative design thirty four semi-structured interviews were conducted with health and social care professionals working in CAMHS and AMHS in four NHS Mental Health Trusts and four voluntary organizations, in England. RESULTS: A cultural divide appears to exist between CAMHS and AMHS, characterized by different beliefs, attitudes, mutual misperceptions and a lack of understanding of different service structures. This is exacerbated by working practices relating to communication and information transfer which could impact negatively on transition, relational, informational and cross boundary continuity of care. There is also evidence of a cultural shift, with some positive approaches to collaborative working across services and agencies, involving joint posts, parallel working, shared clinics and joint meetings. CONCLUSIONS: Cultural factors embodied in mutual misperceptions, attitudes, beliefs exist between CAMHS and AMHS. Working practices can exert either positive or negative effects on transition and continuity of care. Implementation of shared education and training, standardised approaches to record keeping and information transfer, supported by compatible IT resources are recommended, alongside management strategies which evaluate the achievement of outcomes related to transition and continuity of care

    Methods used for the CASE database 2012 update

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    The purpose of this paper is to provide supplementary information to the interested user on how the CASE database was updated by the EPPI Centre in March 2012. In addition, the paper will inform decision-making regarding future updates by the database sponsors, the Culture and Sport Evidence programme (CASE), to ensure the continuing quality of this important resource
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