988 resultados para SAW transducer


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Uneasily Along the Sand evokes the state of mind of the great Mallee poet John Shaw Neilson during a period of hospitalization for nervous exhaustion around 1900. To his bed come the voices and apparitions of all those people whom he might have met but who in life eluded him. It is a ghost community of jesters, singers and seers, who parade in harlequin costumes and recall the poet to the vanishing spirit of the Mallee forest. In particular, a Wotjobaluk man by the name of ‘Jowley’ haunts him, a man found by white people as a child abandoned in a hollow log - abandoned, lost, stolen? The sound installation ‘Mac’ (that forms part of Uneasily and which will receive its first national broadcast to coincide with Mildura Palimpsest #8) evokes their strange meeting and a kind of reconciliation of peoples and cultures with environments that remains elusive. The hospital, where Neilson heard strange voices and saw strange visions, is evoked in a video work based on a set of ‘actions’ performed in Mildura’s Old Base Hospital, and sound recordings made in Pyrenees House, Ararat (a replica of the Swan Hill Hospital where Neilson was confined). The hospital solarium is transformed into a strangely distorted Mallee paddock, of sand, barbed wire and mattresses that leak like hour glasses. Caught in the fence lines of this dream world are scraps of a woman’s dress, bed sheets inscribed with charcoaled graffiti and footprints alluding to the ‘unevennesses’ of a life. Uneasily Along the sand is inspired by Paul Carter’s recent book, ‘Ground Truthing: explorations in a creative region’. The installation of Uneasily in Mildura coincides with Opening, another work inspired by ‘Ground Truthing’ that Carter and Dirk de Bruyn have created for the big screen at Federation Square, Melbourne.

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Objective: To describe how New South Wales (NSW) Area Health Service Chief Executive Officers (CEOs) understood concepts of equity in the development of NSW Health's Equity Statement; CEO knowledge and interpretation of a given concept being one aspect of developing policy.

Design and Setting: This paper describes the process through which NSW Area Health Service CEOs were involved in developing the Equity Statement, specifically:

1. Briefings with individual CEOs on key issues and identification of possible difficulties and potential 'equity champions'.
2. A two-hour workshop to explore ('pre-mortem') why the proposed statement might fail.
3. CEO involvement in identifying strategies that promoted equity already operating locally.
4. C onsultations with selected individuals about the draft recommendations.
5. Feedback to CEOs.

The article provides a case study of consultative policy making by illustrating how participant knowledge can both inform and be strengthened by involvement in the policy development process.

Results: There was a high level of awareness among CEOs of health inequalities and an acceptance of their responsibility to address them. They saw three main ways of doing this: a) equity of resource allocation for health service delivery within and between regions; b) equity of access to health services based on need; and c) equity of health outcomes. CEOs felt that making the health system accountable for health outcomes would provide pressure for system-wide resource allocation changes. They recognised that factors substantially impacting on health outcomes were outside the control of the health system. Furthermore, finding a balance to which they could be held accountable was difficult. All CEOs saw ensuring needs-based access to services as a key area where they could potentially have an impact; and they specifically saw challenges in a conflict between equity and efficiency, marginalisation of special treatment for disadvantaged people, balancing investment in rescue services and prevention/early intervention, and developing a rational health financing system. The resulting policy has been broadly embedded within the NSW health system with strong local support.

Conclusion: The NSW Health and Equity policy was embedded because CEO leadership and acceptance of the policy enhanced local ownership.

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Background
Lying downstream of a myriad of cytokine receptors, the Janus kinase (JAK) – Signal transducer and activator of transcription (STAT) pathway is pivotal for the development and function of the immune system, with additional important roles in other biological systems. To gain further insight into immune system evolution, we have performed a comprehensive bioinformatic analysis of the JAK-STAT pathway components, including the key negative regulators of this pathway, the SH2-domain containing tyrosine phosphatase (SHP), Protein inhibitors against Stats (PIAS), and Suppressor of cytokine signaling (SOCS) proteins across a diverse range of organisms.

Results
Our analysis has demonstrated significant expansion of JAK-STAT pathway components co-incident with the emergence of adaptive immunity, with whole genome duplication being the principal mechanism for generating this additional diversity. In contrast, expansion of upstream cytokine receptors appears to be a pivotal driver for the differential diversification of specific pathway components.

Conclusion
Diversification of JAK-STAT pathway components during early vertebrate development occurred concurrently with a major expansion of upstream cytokine receptors and two rounds of whole genome duplications. This produced an intricate cell-cell communication system that has made a significant contribution to the evolution of the immune system, particularly the emergence of adaptive immunity.

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Objective: To investigate the relationship between parenting style and family functioning, and BMI, among adolescent migrants and refugees from African countries.

Method: A total of 104 parents and their adolescent offspring completed questionnaires assessing the variables of interest, and anthropometric data were collected from them.

Results: Parents reported higher maternal involvement, lower levels of paternal involvement, higher levels of positive parenting, greater use of ‘other’ (non-corporal) discipline styles, greater satisfaction and better communication than did their offspring. Parents also reported greater family cohesion and flexibility than adolescents, and saw their families as more enmeshed and more rigid. Parenting style and family functioning were not strong predictors of BMI according to either report. For adolescents, inconsistent discipline and lack of parental supervision accounted for significant variance in BMI.

Conclusions: Inconsistent discipline and lack of parental supervision may be related to adolescent BMI. Further studies with larger samples are required to confirm these relationships with the view to informing obesity prevention programs for this target population.

Implications: Prevention or intervention programs aimed at reducing the prevalence of overweight and obesity need to consider parenting style in their design.

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Background
Excess gestational weight gain (GWG) can affect the immediate and long term health outcomes of mother and infant. Understanding health providers' views, attitudes and practices around GWG is crucial to assist in the development of practical, time efficient and cost effective ways of supporting health providers to promote healthy GWGs. This study aimed to explore midwives' views, attitudes and approaches to the assessment, management and promotion of healthy GWG and to investigate their views on optimal interventions.
Methods
Midwives working in antenatal care were recruited from one rural and one urban Australian maternity hospital employing purposive sampling strategies to assess a range of practice areas. Face-to-face interviews were conducted with 15 experienced midwives using an interview guide and all interviews were digitally recorded, transcribed verbatim and analysed thematically.
Results
Midwives interviewed exhibited a range of views, attitudes and practices related to GWG. Three dominant themes emerged. Overall GWG was given low priority for midwives working in the antenatal care service in both hospitals. In addition, the midwives were deeply concerned for the physical and psychological health of pregnant women and worried about perceived negative impacts of discussion about weight and related interventions with women. Finally, the midwives saw themselves as central in providing lifestyle behaviour education to pregnant women and identified opportunities for support to promote healthy GWG.
Conclusions
The findings indicate that planning and implementation of healthy GWG interventions are likely to be challenging because the factors impacting on midwives' engagement in the GWG arena are varied and complex. This study provides insights for guideline and intervention development for the promotion of healthy GWG.

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A commercial silica monolithic rod column (100 × 4.6 mm) was cut into smaller sections using a saw. Each time a section was cut from the column, the performance of the remaining intact monolith was retested. No significant change in the performance of the bed was recorded following the removal of 40 mm of the column in three separate cut sections. The work illustrates that monoliths are extremely robust and that they can be remodelled to different lengths if required, or a blocked section of the column (i.e. inlet) could be removed in much the same manner as for GC columns.

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Recent developments in sensor networks and cloud computing saw the emergence of a new platform called sensor-clouds. While the proposition of such a platform is to virtualise the management of physical sensor devices, we foresee novel applications being created based on a new class of social sensors. Social sensors are effectively a human-device combination that sends torrents of data as a result of social interactions. The data generated appear in different formats such as photographs, videos, or short texts, etc. Unlike other sensor devices, social sensors operate on the control of individuals via their mobile devices like smart phones, tablets or laptops. Further, they do not generate data at a constant rate or format like other sensors do. Instead, data from social sensors are spurious and varied, often in response to social events, or a news announcement of interests to the public. This collective presence of social data creates opportunities for novel applications never experienced before. This paper discusses three such applications utilising social sensors within a sensor-cloud environment. Consequently, the associated research problems are also presented.

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The introduction of a social software blog space called the Trading Room in an undergraduate finance unit generated a great deal of activity to support student learning. A subsequent evaluation of this innovation, viewed through the lens of Activity Theory, demonstrated that students perceived high value in the opportunity it provided for them to reaffirm theories, obtain individualised feedback and benchmark their work against others. While assessment is generally seen as the carrot and the stick of learning; students in the study reported that they would still participate in reading and posting to the Trading Room even if there was no assessment requirement. Students did not see any value in the environment as a purely social space, reporting that they saw it primarily as a professional educational community. It would appear that just as there are different communities in the real world social space, there are also different types of communities in the online space.

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Recent developments in sensor networks and cloud computing saw the emergence of a new platform called sensor-clouds. While the proposition of such a platform is to virtualise the management of physical sensor devices, we are seeing novel applications been created based on a new class of social sensors. Social sensors are effectively a human-device combination that sends torrent of data as a result of social interactions and social events. The data generated appear in different formats such as photographs, videos and short text messages. Unlike other sensor devices, social sensors operate on the control of individuals via their mobile devices such as a phone or a laptop. And unlike other sensors that generate data at a constant rate or format, social sensors generate data that are spurious and varied, often in response to events as individual as a dinner outing, or a news announcement of interests to the public. This collective presence of social data creates opportunities for novel applications never experienced before. This paper discusses such applications as a result of utilising social sensors within a sensor-cloud environment. Consequently, the associated research problems are also presented.

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The developments at international level in the debate on what intellectual property (IP) lawyers refer to as traditional cultural expressions (TCEs) have to be seen in the context of the decolonisation movements after the Second World War. Post-war developments saw the formation of the United Nations (UN) and the emphasis on human rights in the UN Charter. With this emphasis came development programmes for indigenous peoples and the recognition of indigenous rights in the ILO Convention No. 107 of the 1957 Concerning the Protection and Intergration of Indigenous and Other Tribal and Semi-Tribal Populations in the Independant Countries. The decolonisation movements also initiated or renewed a parallel debate about the repatriation of items of cultural heritage. There was a remarkable shift in this discussion from 'cultural heritage of mankind' to cultural particularism and an emphasis on 'cultural property' ....

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The introduction of the new “Early Years Learning Framework” (DEEWR, 2009) has shifted the focus in Early Childhood Centres (ECC) from incidental learning through play, to planning curriculum with play as the vehicle to achieve learning in science. Using student research, we identified instances of educator practice that fitted with the new framework, and videoed practitioners’ sessions to select vignettes to use as part of an Early Childhood Science Education Unit. This presentation will discuss the varied practitioners’ approaches we saw and students’ and teachers’ interpretations of forms of ‘intentional teaching, with particular reference to science. We formulated an ‘Intentional Teaching Spectrum’ for the purpose of locating along it early childhood educator practice that differed in the opportunities that practice provided for creative and innovative children’s activity. As this work is not yet complete, full analysis of the video material is yet to be completed, so descriptive aspects only will be discussed.

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Background Chromosomal translocations resulting in alternative fusions of the human TEL (ETV6) and JAK2 genes have been observed in cases of acute lymphoblastic leukemia and chronic myelogenous leukemia, but a full understanding of their role in disease etiology has remained elusive. In this study potential differences between these alternative TEL-JAK2 fusions, including their lineage specificity, were investigated.

Design and Methods TEL-JAK2 fusion types derived from both T-cell acute lymphoblastic leukemia and atypical chronic myelogenous leukemia were generated using the corresponding zebrafish tel and jak2a genes and placed under the control of either the white blood cell-specific spi1 promoter or the ubiquitously-expressed cytomegalovirus promoter. These constructs were injected into zebrafish embryos and their effects on hematopoiesis examined using a range of molecular approaches. In addition, the functional properties of the alternative fusions were investigated in vitro.

Results Injection of the T-cell acute lymphoblastic leukemia-derived tel-jak2a significantly perturbed lymphopoiesis with a lesser effect on myelopoiesis in zebrafish embryos. In contrast, injection of the atypical chronic myelogenous leukemia-derived tel-jak2a resulted in significant perturbation of the myeloid compartment. These phenotypes were observed regardless of whether expressed in a white blood cell-specific or ubiquitous manner, with no overt cellular proliferation outside of the hematopoietic cells. Functional studies revealed subtle differences between the alternative forms, with the acute lymphoblastic leukemia variant showing higher activity, but reduced downstream signal transducer and activator of transcription activation and decreased sensitivity to JAK2 inhibition. JAK2 activity was required to mediate the effects of both variants on zebrafish hematopoiesis.

Conclusions This study indicates that the molecular structure of alternative TEL-JAK2 fusions likely contributes to the etiology of disease. The data further suggest that this class of oncogene exerts its effects in a cell lineage-specific manner, which may be due to differences in downstream signaling.

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It was the end of the academic year in 2020. On the third floor of the Southern Health University's administrative building, the five Vice-Chancellors of the Health Universities were gathering. Outside it was raining, but the patter of drops on the window only served to enhance the coziness of the meeting room. This annual event would take three days. The Vice-Chancellors enjoyed this meeting. They seldom saw each other during the busy academic year and under Professor Hope Brightview's 6 years of chairmanship they had been able to work well together to formulate a rational and profitable distribution of teaching, research and consultation services.

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Neuroendocrine neoplasms (NENs) comprise a heterogeneous group of neoplasms derived from peptide- and amine-secreting cells of the neuroendocrine system. NENs commonly arise in the GI tract but can arise in most organs of the body. NENs in different organs share many common pathologic features. Although the incidence of NENs is not high, the prevalence is not low because many patients may live relatively long periods without major symptoms from the disease. While many of these tumors lead an indolent clinical course, they constitute a therapeutic challenge when they progress, metastasize and become symptomatic. Treatment requires a multidisciplinary approach including cytotoxic chemotherapy. Almost all clinical trials investigating cytotoxic chemotherapy in NENs are small single-arm studies and guidelines are derived from expert opinion and from extrapolating results from small cell lung cancer studies. This article briefly reviews NENs before focusing on reviewing data on the role of cytotoxic chemotherapy studies in NENs.

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According to Rudolf Steiner, within the sensory world there exists a spiritual world that remains concealed from our consciousness to the extent that our perception is limited to our senses and sense bound thinking. He argued that ignorance of this supersensible realm was the result of a limited understanding of the senses. Rather than the usual five senses, Steiner differentiated twelve sense functions through which, he believed, human beings were capable of perceiving subtle dimensions of life beyond the immediately apparent physical realm of being. His theory of the senses elucidated the potentiality for an understanding of the way the spiritual world creates its image in the physical world and he saw artistic activity as a means of making this hidden union manifest. As such, Steiner advocated a multi-sensory architecture that articulated its spiritual presence experientially through an active engagement with its forms, colours, textures, light and sound. However, due to the esoteric overtones of Steiner's writing, his theory of the senses has received very little scholarly attention, particularly in relation to its relevance to architectural creation. This paper aims to peel back the layers of jargon and mysticism that Steiner employed in order to reveal how his unique insights into the nature of the senses informed his architectural products. Such an approach will provide a more comprehensive understanding of Steiner's distinctive architectural forms as well as the significant philosophical ideas that inform them.