120 research outputs found

    Delegation in the land use planning ordinance

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    The assertion that the Land Use Planning Ordinance of the Cape Provincial Administration is delegated to and carried out by local authorities is being investigated. It also analyzes the powers granted (and those not granted) and under which conditions such powers can be exercised. Following an analysis of the current system, suggestions for possible improvements are made. It appears that Provincial advantages of delegation and devolution are used as important arguments in support of the new Ordinance, but that the Ordinance does not convey any important powers, as generally understood by "devolution." True devolution would involve licensing to local authorities to decide on how and where spatial development should occur within its area of ??jurisdiction. The delegated powers are not really planning, but mainly developmental functions. The legislation also has certain gaps that restrict the exercise of some of the delegated powers. The ways in which development control is delegated shows gaps that are likely to affect both the public and private sectors. To be an effective planning institution, in keeping with the needs of the local community, a local authority must be able to make decisions and to pass through what will be in the physical, social and economic needs of all residents. provided

    Critical Soundings: Voice, Space and Sound in Australian Literature

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    Introduction to the Critical Soundings special issue of JASAL. This special issue will consider whether it is possible to claim a distinct sonic texture for Australian literary and cultural formations. What kind of readings result from attending to the relation between silence and the colonial past in Judith Wright’s poetry, to the litany of voices in Christina Stead’s modern vision of Sydney, or the complex links between music and landscape in Tim Winton’s Western Australian coast? Extending a range of historical and theoretical work on sound into an Australian context, this special issue will explore the multiple auditory dimensions of aesthetic, literary and sonic practices in a range of historical, geographical and cultural domains

    Automatic detection of expressed emotion from Five-Minute Speech Samples:Challenges and opportunities

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    Research into clinical applications of speech-based emotion recognition (SER)technologies has been steadily increasing over the past few years. One such potential application is the automatic recognition of expressed emotion (EE) components within family environments. The identification of EE is highly important as they have been linked with a range of adverse life events. Manual coding of these events requires time-consuming specialist training, amplifying the need for automated approaches. Herein we describe an automated machine learning approach for determining the degree of warmth, a key component of EE, from acoustic and text natural language features. Our dataset of 52 recorded interviews is taken from recordings, collected over 20 years ago, from a nationally representative birth cohort of British twin children, and was manually coded for EE by two researchers (inter-rater reliability 0.84–0.90). We demonstrate that the degree of warmth can be predicted with an F1-score of 64.7% despite working with audio recordings of highly variable quality. Our highly promising results suggest that machine learning may be able to assist in the coding of EE in the near future

    Ovi-protective mothers: exploring the proteomic profile of weevil (Gonipterus) egg capsules

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    Insects of different orders produce elaborate structures to protect their eggs from the many threats they may face from the environment and natural enemies. In the weevil genus Gonipterus, their dark, hardened egg capsule is possibly generated by a mixture of the insects' excrement and glandular substances. To test this hypothesis, this study focused on the elucidation of protein components present in the egg capsule cover and interrogated them through comparative analysis and gene expression to help infer potential functions. First, female Gonipterus sp. n. 2 reproductive and alimentary tissues were isolated to establish a reference transcriptome-derived protein database. Then, proteins from weevil frass (excrement) and egg capsule cover were identified through mass spectrometry proteomics. We found that certain egg capsule cover proteins were both exclusive and shared between frass and egg capsule cover, including those of plant origin (e.g. photosystem II protein) and others secreted by the weevil, primarily from reproductive tissue. Among them, a mucin/spidroin-like protein and novel proteins with repetitive units that likely play a structural role were identified. We have confirmed the dual origin of the egg capsule cover substance as a blend of the insects? frass and secretions. Novel proteins secreted by the weevils are key candidates for holding the egg case cover together

    Ovi-protective mothers: exploring the proteomic profile of weevil (Gonipterus) egg capsules

    Get PDF
    Insects of different orders produce elaborate structures to protect their eggs from the many threats they may face from the environment and natural enemies. In the weevil genus Gonipterus, their dark, hardened egg capsule is possibly generated by a mixture of the insects' excrement and glandular substances. To test this hypothesis, this study focused on the elucidation of protein components present in the egg capsule cover and interrogated them through comparative analysis and gene expression to help infer potential functions. First, female Gonipterus sp. n. 2 reproductive and alimentary tissues were isolated to establish a reference transcriptome-derived protein database. Then, proteins from weevil frass (excrement) and egg capsule cover were identified through mass spectrometry proteomics. We found that certain egg capsule cover proteins were both exclusive and shared between frass and egg capsule cover, including those of plant origin (e.g. photosystem II protein) and others secreted by the weevil, primarily from reproductive tissue. Among them, a mucin/spidroin-like protein and novel proteins with repetitive units that likely play a structural role were identified. We have confirmed the dual origin of the egg capsule cover substance as a blend of the insects? frass and secretions. Novel proteins secreted by the weevils are key candidates for holding the egg case cover together

    Posterior Segment Ophthalmic Drug Delivery: Role of Muco-Adhesion with a Special Focus on Chitosan.

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    Posterior segment eye diseases (PSEDs) including age macular degeneration (AMD) and diabetic retinopathy (DR) are amongst the major causes of irreversible blindness worldwide. Due to the numerous barriers encountered, highly invasive intravitreal (IVT) injections represent the primary route to deliver drugs to the posterior eye tissues. Thus, the potential of a more patient friendly topical route has been widely investigated. Mucoadhesive formulations can decrease precorneal clearance while prolonging precorneal residence. Thus, they are expected to enhance the chances of adherence to corneal and conjunctival surfaces and as such, enable increased delivery to the posterior eye segment. Among the mucoadhesive polymers available, chitosan is the most widely explored due to its outstanding mucoadhesive characteristics. In this review, the major PSEDs, their treatments, barriers to topical delivery, and routes of topical drug absorption to the posterior eye are presented. To enable the successful design of mucoadhesive ophthalmic drug delivery systems (DDSs), an overview of mucoadhesion, its theory, characterization, and considerations for ocular mucoadhesion is given. Furthermore, chitosan-based DDs that have been explored to promote topical drug delivery to the posterior eye segment are reviewed. Finally, challenges of successful preclinical to clinical translation of these DDSs for posterior eye drug delivery are discussed

    Health visitors’ perception of their role in the universal childhood immunisation programme and their communication strategies with parents

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    Aim: This study explored health visitors’ perception of their role in the universal childhood immunisation programme with particular emphasis on influencing factors and communication strategies. Background: The majority of parents’ consent to immunisation, but some find decision-making in this area difficult and have unmet information needs. In the United Kingdom, health visitors routinely provide immunisation information for parents, whereas general practitioners (GPs) and practice nurses tend to administer vaccines and respond to parents/carers’ questions. Research has investigated health professionals’ views and knowledge about immunisation, but less is understood about health visitors’ role and how they communicate with parents. Method: Following the Local Research Ethics and Research Governance permissions, all health visitors (n5120) working in one county in the United Kingdom were invited to participate in the study. Semistructured interviews (n522) were undertaken using a prompt guide. The interviews were transcribed verbatim. Thematic analysis using an iterative approach was used to explore the data facilitated by NVIVOTM software. Findings: Five themes emerged from the interviews. These were health visitors’professional role; identity and perceived barriers and communication strategies, parents’ right to choose, confidence in measles, mumps, and rubella (MMR) vaccination and communicating with migrant families about immunisation. There were differences between the health visitors in their perceptions of their roles, skills and knowledge and communication strategies. Health visitors perceived that GPs and practice nurses took a paternalistic approach to the provision of immunisation information, while they used a parental decision making model. Health visitors reported a loss of professional confidence following the MMR crisis. Conclusion: Given the evidence that some parents find it difficult to gain the information they need about immunisation and health visitors’ acknowledgement that their usual communication models were not effective during the MMR crisis, we feel specific communication skills training is needed to enable health professionals to provide parents with appropriate decision support

    Sensors for foetal hypoxia and metabolic acidosis: a review

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    This article reviews existing clinical practices and sensor research undertaken to monitor fetal well-being during labour. Current clinical practices that include fetal heart rate monitoring and fetal scalp blood sampling are shown to be either inadequate or time-consuming. Monitoring of lactate in blood is identified as a potential alternative for intrapartum fetal monitoring due to its ability to distinguish between different types of acidosis. A literature review from a medical and technical perspective is presented to identify the current advancements in the field of lactate sensors for this application. It is concluded that a less invasive and a more continuous monitoring device is required to fulfill the clinical needs of intrapartum fetal monitoring. Potential specifications for such a system are also presented in this paper
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