114 research outputs found

    The enhancement of floral biodiversity in small scale constructed wetland treatment systems

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    Within the U.K. small-scale treatment wetlands are primarily constructed using a monoculture of Phragmites australis. This thesis investigates the potential for enhancing the biodiversity value of these wetlands by the inclusion of appropriate floral species. Extensive literature reviews found that although there was a plethora of data for the design of constructed wetlands, there was a dearth of information on enhancing the biodiversity value of these wetlands. Three potential biodiversity enhancing species were identified which could be beneficial; purple loosestrife Lythrum salicaria, meadowsweet Filipendula ulmaria and water mint Mentha aquatica. A microcosm study was undertaken to investigate the growth of these species, the interactions between them and with Phragmites australis. The two pollutants employed in these studies were nitrogen and salinity. A second parallel system was constructed where competition between the plants was restricted by installing root dividers. The results of the microcosm study identified that selected species survived within all of the nutrient concentrations employed. The roots of the biodiversity enhancing species predominantly stayed within the upper humus layer of the wetland and so would not interfere with the subsurface flow of the wetland or the treatment potential of the Phragmites australis roots. The area coverage of the biodiversity enhancing species combined with the coverage and treatment potential of the Phragmites australis roots show that these species are suitable for growing within a small-scale constructed wetland at the tested nutrient concentrations. Fatalities were present within the salinity concentrations, therefore they can only be utilised at up to a limiting salinity concentration. A field study was subsequently undertaken at operational sites to investigate the addition of biodiversity enhancing species into mature and newly restored reedbeds with mixed results. Following the study, design principle recommendations are made for including biodiversity enhancing species within a small-scale treatment wetland systems within the U.K

    Haematuria: from identification to treatment

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    Haematuria has a prevalence of 0.1% to 2.6%. Potential diagnoses may include infection, kidney stones, trauma, exercise or spurious causes, such as foods, drugs or menstruation, and a tumour. Approximately 20% of patients with haematuria have a urological tumour, with a further 20% found to have a significant underlying pathology. Haematuria is subsequently known as the ‘classic presentation’ of bladder cancer with 70-80% of patients experiencing painless, gross (visible) haematuria. However, in all cases of visible haematuria, a tumour should be suspected until proven otherwise. A patient with visible haematuria requires urgent, stringent investigation, warranting specialist assessment and subsequent selective referral through a series of patient-centred investigations at a haematuria clinic. One-stop clinics have been shown to improve the patient experience in early diagnosis of potentially life-threatening conditions. Yet despite morbidity and mortality from bladder cancer increasing, the haematuria service has remained largely unchanged for several decades. This paper will discuss the tests and investigations that need to be undertaken in an individual with either visible or non-visible haematuria, and outline the care that is needed to support patients through the investigation process, with special focus on bladder tumour

    From impediment to innovation: Introducing a residential school within the Human Services Discipline

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    Recent external program accreditation identified the need for increased face-to-face student engagement within the Human Services core courses. A three-day residential school within the Human Services Case Management course was proposed and accepted. This poster describes how an integrated approach enabled the successful launch of a new residential school within an existing course

    Perioperative management of patients undergoing penile prosthesis surgery in the UK: A survey of current practice

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    Objectives: This study aimed to define contemporary perioperative management of patients undergoing penile implant surgery in the UK. Methods: All consultant urological surgeons responsible for the insertion of penile prostheses in the UK were invited to complete an online survey comprising of 25 questions relating to surgeon demographics, patient selection, preoperative work-up, intraoperative management and postoperative care. Anonymised responses underwent descriptive statistical analysis, with particular focus on measures employed to reduce the risk of perioperative infection. Results: Of the 34 invited surgeons, 26 (76.5%) responded to the survey. The majority reported undertaking between 10 and 30 cases in 2018 (n=17; 65.4%). A total of 23 (88.5%) respondents reported employing a threshold for diabetic control, although the exact limit varied between surgeons. Most respondents (n=22; 84.6%) reported routinely sampling urine for microscopy, culture and sensitivity. All but one (n=25; 96.2%) reported routinely performing cavernosal washouts, with the most common solution being a mixture of gentamicin and vancomycin (42.3%). All reported routinely giving intravenous antibiotics on induction of anaesthesia, and although there was no clear consensus, most surgeons preferentially used an aminoglycoside in combination with one other agent (including penicillins or teicoplanin). Conclusion: The variation in current perioperative management demonstrates a potential need for the development and introduction of evidence-based guidelines to standardise practice nationwide
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