25 research outputs found

    Artificial Synthesis of Conjugated Microporous Polymers via Sonogashira-Hagihara Coupling

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    Amorphous network materials are becoming increasingly important with applications, for example, as supercapacitors, battery anodes, and proton conduction membranes. The design of these materials is hampered by the amorphous nature of the structure and sensitivity to synthetic conditions. Here, we show that through artificial synthesis, fully mimicking the catalytic formation cycle, and full synthetic conditions, we can generate structural models that can fully describe the physical properties of these amorphous network materials. This opens up pathways for the rational design where complex structural influences, such as the solvent and catalyst choice, can be taken into account

    Chemical vapour deposition synthetic diamond: materials, technology and applications

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    Substantial developments have been achieved in the synthesis of chemical vapour deposition (CVD) diamond in recent years, providing engineers and designers with access to a large range of new diamond materials. CVD diamond has a number of outstanding material properties that can enable exceptional performance in applications as diverse as medical diagnostics, water treatment, radiation detection, high power electronics, consumer audio, magnetometry and novel lasers. Often the material is synthesized in planar form, however non-planar geometries are also possible and enable a number of key applications. This article reviews the material properties and characteristics of single crystal and polycrystalline CVD diamond, and how these can be utilized, focusing particularly on optics, electronics and electrochemistry. It also summarizes how CVD diamond can be tailored for specific applications, based on the ability to synthesize a consistent and engineered high performance product.Comment: 51 pages, 16 figure

    Midwives' emotional wellbeing: Impact of conducting a Structured Antenatal Psychosocial Assessment (SAPSA)

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    Research problem: To investigate the impact of conducting structured antenatal psychosocial assessments (SAPSA) on midwives' emotional wellbeing. The SAPSA includes screening and assessment tools for domestic violence, childhood trauma, drug and alcohol use, depression, and vulnerability factors. Participants and methods: Registered midwives who had conducted the SAPSA with women during the first hospital booking visit at two hospitals in NSW. Data was collected by means of focus group interviews. Results: Four sub-themes were identified that directly impacted upon the midwives' emotional wellbeing: cumulative complex disclosures, frustration and stress, lack of support for midwives and unhealthy coping strategies. Discussion and conclusions: There was a cumulative emotional effect with some midwives utilising unhealthy strategies to cope with feelings of frustration, inadequacy and vicarious trauma. Establishment of structured referral pathways for women and supportive systems for midwives is essential prior to implementing the SAPSA. Crown Copyright © 2009

    Factors that may influence midwives work-related stress and burnout

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    Research question: To determine the incidence and level of work-related stress and burnout in midwives and contributing and protective demographic factors that may influence those levels. Participants and method: All registered midwives (152) working in two public hospital maternity units within the same health service district in NSW completed the Maslach Burnout Inventory Human Services Survey and a demographic survey including care model, shift work, lifestyle data and exercise level. Findings: There was a response rate of 36.8% with 56 (56/152) midwives completing the surveys. Almost two thirds (60.7%) of midwives in this sample experienced moderate to high levels of emotional exhaustion, a third (30.3%) scoring low personal accomplishment and a third (30.3%) experiencing depersonalization related to burnout. Significant differences were found among groups of midwives according to years in the profession, shifts worked, how many women with multiple psychosocial issues were included in the midwife's workload and the midwife's uptake of physical exercise. Those midwives who had spent longer in the profession and exercised scored low burnout levels. Conclusion: The impact of years in the profession, shifts worked, how many women with multiple psychosocial issues were included in their workload and the midwife's level of exercise significantly affected how these midwives dealt with burnout and provided care for women. As the response rate was low, and the study cannot be generalised to the entire midwifery workforce but provides important insights for further research. Understanding factors related to burnout can benefit health care institutions financially and in terms of human costs, especially in view of consistent international shortages of midwives. © 2011 Australian College of Midwives

    Addressing obesity in pregnancy: The design and feasibility of an innovative intervention in NSW, Australia

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    Objective: Obesity amongst women of child bearing age is increasing at an unprecedented, rate throughout the Western world. This paper describes the design of an innovative, collaborative, antenatal intervention that aims to assist women to manage their weight during pregnancy and, presents aspects of the programme evaluation. Data sources/study setting: The programme was introduced at two sites, one in South East Sydney and, the other on the Central North Coast of NSW. Data were drawn from both sites and pooled for analysis. Study design: This evaluation used mixed methods drawing on qualitative and quantitative data. Data collection methods: Focus groups were held with staff in the antenatal clinic, who were, responsible for recruiting to the new service. Members of staff were also asked to record BMI for all women offered the service and using a simple questionnaire, record the reasons women gave for declining the new service. Principle findings: The recruitment rate to the new service was 35% though this result should be treated with caution. Those women with a BMI of >35 were twice as likely to elect to participate in the new service as women with a BMI of less than 35. Focus groups with midwives in the antenatal clinic responsible for recruitment identified three themes impacting on recruitment to the service; 'finding the words', 'acknowledging challenges' and 'midwives' knowledge'. Conclusions: Antenatal clinic midwives were unprepared for talking to women about their weight. Increasing the confidence and skills of staff in offering service innovations to eligible women is a major challenge to be met if new models of care are to be successful in addressing overweight and obesity in pregnancy. © 2011 Australian College of Midwives
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