942 resultados para Mediterráneo romano
Resumo:
This short article explores the ways in which the news media's reporting about Indigenous Australians can be improved. The article looks at how journalists predominantly portray Indigenous people in vulnerable circumstances. Journalists also often misrepresent Indigenous Australians in ways that can potentially harm individuals and communities. In forums about the media, it is common to hear Indigenous people say that they ignore non-Indigenous news services due to such problems, and they rely on community media instead. Even so, the non-Indigenous media has a huge impact on public understanding and government policies, which directly influence the living conditions of Indigenous people. Thus it remains important to consider how the performance of non-Indigenous media can be improved, and the article discusses the steps that are needed if this is to happen.
Resumo:
The processes used in Australian universities for reviewing the ethics of research projects are based on the traditions of research and practice from the medical and health sciences. The national guidelines for ethical conduct in research are heavily based on presumptions that the researcher–participant relationship is similar to a doctor–patient relationship. The National Health and Medical Research Council, Australian Research Council and Australian Vice-Chancellors’ Committee have made a laudable effort to fix this problem by releasing the National Statement on Ethical Conduct in Human Research in 2007, to replace the 1999 National Statement on Ethical Conduct in Research Involving Humans. The new statement better encompasses the needs of the humanities, social sciences and creative industries. However, this paper argues that the revised National Statement and ethical review processes within universities still do not fully encompass the definitions of ‘research’ and the requirements, traditions, codes of practice and standards of the humanities, social sciences and creative industries. The paper argues that scholars within these disciplines often lack the language to articulate their modes of practice and risk management strategies to university-level ethics committees. As a consequence, scholars from these disciplines may find their research is delayed or stymied. The paper focuses on creative industries researchers, and explores the issues that they face in managing the ethical review process, particularly when engaging in practice-based research. Although the focus is on the creative industries, the issues are relevant to most fields in the humanities and social sciences.
Seeking inclusion : views from ‘vulnerable’ communities about reporting by the Australian news media
Resumo:
This conference paper reports on the findings of the 'Vulnerability and the News Media’ project about news reporting on communities that are commonly regarded as ‘vulnerable’ by virtue of their issues or circumstances. The project focuses on news reporting of Indigenous and ethnically diverse communities, as well as people affected by mental health issues, people with disabilities, and survivors of crime and traumatic events. Numerous educational initiatives have tried to improve the quality of media reports about these communities and their issues. Despite this, the project’s research with stakeholders from those communities has found that they continue to raise the same concerns that have been expressed about the news media since the 1970s. In focus group research, stakeholders from these communities expressed concern about their continuing under-representation or omission from the news media. They felt that voices, experiences, perspectives and issues from their communities rarely appeared, or if they did appear, it was in limited contexts – often in circumstances that portrayed them as vulnerable or disruptive. They also pointed to ongoing media misrepresentation, such as stereotyping, inappropriate framing, and over-reliance on ‘usual suspects’ to talk about their communities. A common theme that they voiced was their need for greater inclusiveness in the media. Participants wished that journalists would better represent the diversity of life experiences and perspectives within their communities. Stakeholders also wanted an increased in representation of their political frameworks, such as stories about the difficulties they encountered in dealing with social and bureaucratic systems, and their understandings of causes and potential solutions for issues affecting their communities.
A new model to study healing of a complex femur fracture with concurrent soft tissue injury in sheep
Resumo:
High energy bone fractures resulting from impact trauma are often accompanied by subcutaneous soft tissue injuries, even if the skin remains intact. There is evidence that such closed soft tissue injuries affect the healing of bone fractures, and vice versa. Despite this knowledge, most impact trauma studies in animals have focussed on bone fractures or soft tissue trauma in isolation. However, given the simultaneous impact on both tissues a better understanding of the interaction between these two injuries is necessary to optimise clinical treatment. The aim of this study was therefore to develop a new experimental model and characterise, for the first time, the healing of a complex fracture with concurrent closed soft tissue trauma in sheep. A pendulum impact device was designed to deliver a defined and standardised impact to the distal thigh of sheep, causing a reproducible contusion injury to the subcutaneous soft tissues. In a subsequent procedure, a reproducible femoral butterfly fracture (AO C3-type) was created at the sheep’s femur, which was initially stabilised for 5 days by an external fixator construct to allow for soft tissue swelling to recede, and ultimately in a bridging construct using locking plates. The combined injuries were applied to twelve sheep and the healing observed for four or eight weeks (six animals per group) until sacrifice. The pendulum impact led to a moderate to severe circumferential soft tissue injury with significant bruising, haematomas and partial muscle disruptions. Posttraumatic measurements showed elevated intra-compartmental pressure and circulatory tissue breakdown markers, with recovery to normal, pre-injury values within four days. Clinically, no neurovascular deficiencies were observed. Bi-weekly radiological analysis of the healing fractures showed progressive callus healing over time, with the average number of callus bridges increasing from 0.4 at two weeks to 4.2 at eight weeks. Biomechanical testing after sacrifice showed increasing torsional stiffness between four and eight weeks healing time from 10% to 100%, and increasing ultimate torsional strength from 10% to 64% (relative to the contralateral control limb). Our results demonstrate the robust healing of a complex femur fracture in the presence of a severe soft tissue contusion injury in sheep and demonstrate the establishment of a clinically relevant experimental model, for research aimed at improving the treatment of bone fractures accompanied by closed soft tissue injuries.
Resumo:
Biological validation of new radiotherapy modalities is essential to understand their therapeutic potential. Antiprotons have been proposed for cancer therapy due to enhanced dose deposition provided by antiproton-nucleon annihilation. We assessed cellular DNA damage and relative biological effectiveness (RBE) of a clinically relevant antiproton beam. Despite a modest LET (~19 keV/μm), antiproton spread out Bragg peak (SOBP) irradiation caused significant residual γ-H2AX foci compared to X-ray, proton and antiproton plateau irradiation. RBE of ~1.48 in the SOBP and ~1 in the plateau were measured and used for a qualitative effective dose curve comparison with proton and carbon-ions. Foci in the antiproton SOBP were larger and more structured compared to X-rays, protons and carbon-ions. This is likely due to overlapping particle tracks near the annihilation vertex, creating spatially correlated DNA lesions. No biological effects were observed at 28–42 mm away from the primary beam suggesting minimal risk from long-range secondary particles.
Resumo:
The purpose of this paper is to identify goal conflicts – both actual and potential – between climate and social policies in government strategies in response to the growing significance of climate change as a socioecological issue (IPCC 2007). Both social and climate policies are political responses to long-term societal trends related to capitalist development, industrialisation, and urbanisation (Koch, 2012). Both modify these processes through regulation, fiscal transfers and other measures, thereby affecting conditions for the other. This means that there are fields of tensions and synergies between social policy and climate change policy. Exploring these tensions and synergies is an increasingly important task for navigating genuinely sustainable development. Gough et al (2008) highlight three potential synergies between social and climate change policies: First, income redistribution – a traditional concern of social policy – can facilitate use of and enhance efficiency of carbon pricing. A second area of synergy is housing, transport, urban policies and community development, which all have potential to crucially contribute towards reducing carbon emissions. Finally, climate change mitigation will require substantial and rapid shifts in producer and consumer behaviour. Land use planning policy is a critical bridge between climate change and social policy that provides a means to explore the tensions and synergies that are evolving within this context. This paper will focus on spatial planning as an opportunity to develop strategies to adapt to climate change, and reviews the challenges of such change. Land use and spatial planning involve the allocation of land and the design and control of spatial patterns. Spatial planning is identified as being one of the most effective means of adapting settlements in response to climate change (Hurlimann and March, 2012). It provides the instrumental framework for adaptation (Meyer, et al., 2010) and operates as both a mechanism to achieve adaptation and a forum to negotiate priorities surrounding adaptation (Davoudi, et al., 2009). The acknowledged role of spatial planning in adaptation however has not translated into comparably significant consideration in planning literature (Davoudi, et al., 2009; Hurlimann and March, 2012). The discourse on adaptation specifically through spatial planning is described as ‘missing’ and ‘subordinate’ in national adaptation plans (Greiving and Fleischhauer, 2012),‘underrepresented’ (Roggema, et al., 2012)and ‘limited and disparate’ in planning literature (Davoudi, et al., 2009). Hurlimann and March (2012) suggest this may be due to limited experiences of adaptation in developed nations while Roggema et al. (2012) and Crane and Landis (2010) suggest it is because climate change is a wicked problem involving an unfamiliar problem, various frames of understanding and uncertain solutions. The potential for goal conflicts within this policy forum seem to outweigh the synergies. Yet, spatial planning will be a critical policy tool in the future to both protect and adapt communities to climate change.
Resumo:
This chapter describes how investigative journalism can uncover news that often goes unreported about personalities, problems, ways of life and pressing issues in ethnic and religious sub-communities. While investigative journalism is traditionally understood as reporting that exposes corrupt, inefficient, incompetent or other inappropriate conduct in politics and business circles, investigative reporters do far more than that. They also map human activities, landmarks, patterns and changes in the landscape, and connections across the whole of society. This type of investigative journalism can improve reporting of ethnic and religious sub-communities via identification, deep observation and analysis of trends, events, and issues that would otherwise remain hidden or obscured. The chapter includes details of techniques that investigative journalists can employ to identify interesting topics, find sources of information, analyse data and issues, and report compelling stories.
Resumo:
We have studied the mineral analcime using a combination of scanning electron microscopy with energy dispersive spectroscopy and vibrational spectroscopy. The mineral analcime Na2(Al4SiO4O12)·2H2O is a crystalline sodium silicate. Chemical analysis shows the mineral contains a range of elements including Na, Al, Fe2+ and Si. The mineral is characterized by intense Raman bands observed at 1052, 1096 and 1125 cm−1. The infrared bands are broad; nevertheless bands may be resolved at 1006 and 1119 cm−1. These bands are assigned to SiO stretching vibrational modes. Intense Raman band at 484 cm−1 is attributed to OSiO bending modes. Raman bands observed at 2501, 3542, 3558 and 3600 cm−1 are assigned to the stretching vibrations of water. Low intensity infrared bands are noted at 3373, 3529 and 3608 cm−1. The observation of multiple water bands indicate that water is involved in the structure of analcime with differing hydrogen bond strengths. This concept is supported by the number of bands in the water bending region. Vibrational spectroscopy assists with the characterization of the mineral analcime.
Resumo:
The mineral pectolite NaCa2Si3O8(OH) is a crystalline sodium calcium silicate which has the potential to be used in plaster boards and in other industrial applications. Raman bands at 974 and 1026 cm−1 are assigned to the SiO stretching vibrations of linked units of Si3O8 units. Raman bands at 974 and 998 cm−1 serve to identify Si3O8 units. The broad Raman band at around 936 cm−1 is attributed to hydroxyl deformation modes. Intense Raman band at 653 cm−1 is assigned to OSiO bending vibration. Intense Raman bands in the 2700–3000 cm−1 spectral range are assigned to OH stretching vibrations of the OH units in pectolite. Infrared spectra are in harmony with the Raman spectra. Raman spectroscopy with complimentary infrared spectroscopy enables the characterisation of the silicate mineral pectolite.
Resumo:
This paper outlines the progress by the JoMeC (Journalism, Media & Communication) Network in developing TLO (Threshold Learning Outcome) statements for Bachelor-level university programs in the disciplines of Journalism, Public Relations and Media & Communications Studies. The paper presents the finalised TLO statement for Journalism, and outlines moves to engage discipline-based groups to further develop preliminary TLOs for Public Relations and Media & Communication Studies. The JoMeC Network was formed in 2011, in response to requirements that from 2014 all degrees and qualifications at Australian universities would be able to demonstrate that they comply with the threshold learning standards set by the Australian Qualifications Framework (AQF). The AQF’s threshold standards define the minimum types and levels of knowledge, skills and capabilities that a student must demonstrate in order to graduate. The Tertiary Education Quality and Standards Agency (TEQSA) will use the AQF’s threshold standards as a key tool in recording and assessing the performance of higher educational institutions, and determining whether they should be registered as Australian Higher Education Providers under the Higher Education Standards Framework. The Office of Learning & Teaching (OLT) places the onus on discipline communities to collaborate in order to develop and ‘own’ the threshold learning standards that can be considered the minimum learning outcomes of university-level programs in that field. With the support of an OLT Grant, the JoMeC Network’s prime goal has been to develop three sets of discipline-specific TLOs – one each for the Journalism, Public Relations, and Media & Communications Studies disciplines. This paper describes the processes of research, consultation, drafting and ongoing revision of the TLO for Journalism. It outlines the processes that the JoMeC Network has taken in developing a preliminary TLO draft to initiate discussion of Public Relations and Media & Communication Studies. The JoMeC Network plans to hand management of further development of these TLOs to scholars within the discipline who will engage with academics and other stakeholders to develop statements that the respective disciplines can embrace and ‘own’.