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We present radio observations of the galaxy cluster Abell S1136 at 888 MHz, using the Australian Square Kilometre Array Pathfinder radio telescope, as part of the Evolutionary Map of the Universe Early Science program. We compare these findings with data from the Murchison Widefield Array, XMM-Newton, the Wide-field Infrared Survey Explorer, the Digitised Sky Survey, and the Australia Telescope Compact Array. Our analysis shows the X-ray and radio emission in Abell S1136 are closely aligned and centered on the Brightest Cluster Galaxy, while the X-ray temperature profile shows a relaxed cluster with no evidence of a cool core. We find that the diffuse radio emission in the centre of the cluster shows more structure than seen in previous low-resolution observations of this source, which appeared formerly as an amorphous radio blob, similar in appearance to a radio halo; our observations show the diffuse emission in the Abell S1136 galaxy cluster contains three narrow filamentary structures visible at 888 MHz, between $\sim$80 and 140 kpc in length; however, the properties of the diffuse emission do not fully match that of a radio (mini-)halo or (fossil) tailed radio source.
Attentional impairments are common in dementia with Lewy bodies and its prodromal stage of mild cognitive impairment (MCI) with Lewy bodies (MCI-LB). People with MCI may be capable of compensating for subtle attentional deficits in most circumstances, and so these may present as occasional lapses of attention. We aimed to assess the utility of a continuous performance task (CPT), which requires sustained attention for several minutes, for measuring attentional performance in MCI-LB in comparison to Alzheimer’s disease (MCI-AD), and any performance deficits which emerged with sustained effort.
Method:
We included longitudinal data on a CPT sustained attention task for 89 participants with MCI-LB or MCI-AD and 31 healthy controls, estimating ex-Gaussian response time parameters, omission and commission errors. Performance trajectories were estimated both cross-sectionally (intra-task progress from start to end) and longitudinally (change in performance over years).
Results:
While response times in successful trials were broadly similar, with slight slowing associated with clinical parkinsonism, those with MCI-LB made considerably more errors. Omission errors were more common throughout the task in MCI-LB than MCI-AD (OR 2.3, 95% CI: 1.1–4.7), while commission errors became more common after several minutes of sustained attention. Within MCI-LB, omission errors were more common in those with clinical parkinsonism (OR 1.9, 95% CI: 1.3–2.9) or cognitive fluctuations (OR 4.3, 95% CI: 2.2–8.8).
Conclusions:
Sustained attention deficits in MCI-LB may emerge in the form of attentional lapses leading to omissions, and a breakdown in inhibitory control leading to commission errors.
Making Sense of Mass Education provides a contemporary analysis of the ideas and issues that have traditionally dominated education research, challenging outdated preconceptions with fundamental theory and discussion. It takes a demythologising approach in assessing these issues and their relevance to schooling and education in Australia. This text examines the cultural context of education and the influence of external media and new technologies, and highlights the many forms of discrimination in education, including social class, race and gender. It looks at alternative approaches to education, including the repercussions of gathering data to measure school performance, and considers the intersection of ethics and philosophy in classroom teaching. The fourth edition expands on these issues with three new chapters: on sexuality, children's rights, and neoliberalism and the marketisation of education. Each chapter challenges and breaks down common myths surrounding these topics, encouraging pre-service teachers to think critically and reflect on their own beliefs.
This chapter argues that our subjective experiences ߝ how we experience the world and understand ourselves within it ߝ are just as closely governed as our objective conduct, discussed in the last chapter. Whether they realise it or not, contemporary teachers are expected to play a significant role in this form of regulation. After all, teachers are now not simply responsible for transmitting a given curriculum and keeping children in line; they are de facto psychologists, responsible for the mental health, regulation and development of their pupils.
This chapter argues that the issue of ‘truth’ has played a foundational role, not only within the discipline of philosophy but also within many different aspects of Australian culture. However, there seems to be little agreement on what it really is, and while some philosophers contend that truth is a meaningless concept ߝ a linguistic mirage ߝ most would argue there’s something of importance there ߝ but what is it?Even if we struggle to determine the real nature of truth ߝ as we did with the real nature of right and wrong in Chapter 15 ߝ at least we structure our culture, our knowledges and our school curricula around stuff we know to be unequivocally true … or do we? Arguably, many of the assumptions we make, often derived from five centuries of European colonialism, do not stand up to close scrutiny. They are often ‘truths’ that suit particular interests of the powerful, and subtly act to reinforce their worldview.
The working life of educators ߝ whether in schools or universities ߝ has become dauntingly complex, with the relentless focus on standards and testing, pressure to ensure equitable outcomes, a managerialist working environments, ever-growing professional responsibilities and expectations, increasingly heterogeneous classrooms and fairly relentless media criticism, to name only a fewissues. The job requires continual self-reflection, a commitment to lifelong learning and an ongoing dedication to the profession in order to remain viable at all. Making sense of it all ߝ Making Sense of Mass Education ߝ is not an easy task. Hopefully this book can help a little.
A quick glance through history demonstrates that it has not always been an unbroken chain of human happiness, to put it mildly.Different individuals, groups and peoples have faced persecution for any number of reasons: where they came from, how they looked, their perceived (dis)ability, who or what they believed in, who they loved, how they identified, the family they were born into, or, in some cases, for no reason at all. It is against this backdrop that our current set of human rights has emerged. While this chapter focuses primarilyon children’s rights and their relationship with education and educator obligations, it is necessary to understand the history of rights in order to understand why human rights, and particularly children’s rights, are so important to the work we do as educators.
Of all the ways in which humans have chosen to divide themselves, none has a history as problematic as race. This concept has significant implications for almost every aspect of contemporary human conduct, irrespective of what ‘race’ we identify with, or even are deemed to belong to. This is particularly so in the field of education.
This chapter will look at the complicated history of race as well as some of the current challenges being faced. In order to describe the complex issues within this important area, a wide range of interrelated terms are used. Probably the most important of these terms is the underpinning notion of ‘othering’ ߝ that is, thinking about a certain person or group as not ‘one of us’... as ‘the other’. This important concept is also very relevant to discussions of gender and sexualities, so it is discussed further in Chapter 3.
This chapter makes the case for the importance of philosophy as a discipline in its own right, as a subject area vital to the better understanding of education and as a set of self-reflective practices that can make us better teachers. Philosophy is largely concerned with those areas of study and speculation beyond the reach of empirical analysis, addressing problems about how we construct knowledge, how we produce a just society and how we determine ‘right’ from ‘wrong’. Its central research methodology is simply to think with clarity. The significance of this discipline has not been limited to answering abstract questions about the human condition; philosophy has been instrumental in both making us into rational and reflective citizens and framing the ideas behind our entire system of mass schooling.
More often than not, the advent of contemporary information and communication technologies is presented as one of the great success stories of contemporary schooling, and while ICT has the potential to be a transformative force in education, the issues are complicated and the outcomes far from certain. The field is often divided into those who grew up with such technologies ߝ ‘digital natives’/students ߝ and those who have come to these technologies at a later date ߝ ‘digital immigrants’/teachers. This binary articulates a central problem within a power relation where teachers are normally expected to know more than those they teach. Furthermore, such new technologies do not simply represent mechanisms for accessing more information more quickly and in more interesting ways. By stepping outside the domain of traditional linear texts, traditional understandings of literacy start to lose their meaning. New digital technologies necessitate the adoption of the notion of ‘multiliteracies’, a plural understanding of literacy that encompasses a range of other modes of contemporary meaning-making ߝ hypertext, audio, video and so on ߝ which are integral to the digital universe.
Given that feminist arguments have been around for decades, and that there has been progress towards gender equality, many would argue that concerns over gender have been resolved ߝ a battle won. However, declaring victory in this manner seems very premature. After all, the evidence suggests that a significant number of wider questions still attract attention: just what is gender and what is the best theoretical framework for approaching it? What roles do schools play in its construction? Do we still have to go down the ‘men are to blame for everything’ route? Why should schooling have anything to do with gender identity?
This chapter will unpack the complex and changing relationship between gender and education. In order to accomplish this, it will link each of the most common myths in the area with one of the three waves of feminism that characterised the twentieth century. As with the arguments surrounding social class, it will ultimately be suggested that explanations relying upon a master discourse ߝ not ‘the economy’ again, but in this case patriarchy ߝ a unified system of male domination ߝ are outdated.Similarly, it is argued that the view of gender as a binary of man/woman based on anatomy at birth has had its day.
This chapter examines the rather ambiguous notion of alternative education. To some, sending a child to a Catholic school constitutes an alternative education; to others, nothing short of a total rejection of the central parameters of the mass school deserves the label ߝ such as the elimination of timetables, authority relations, organised curricula, fixed learning goals, even the notion that pupils are to be schooled in any way at all. It’s a subject that often engenders no little passion in those who embrace the categorisation, and no little ridicule among those who do not. Strange though some of the alternative education options might seem, they are all worthy of serious consideration … but what exactly are they?
This chapter argues that educators need to have a good grasp of all the various forms of pre-adulthood we take for granted, such as ‘the child’ and ‘youth’. These categories are the focus of a range of different disciplines, most of which found their explanatory models in nature itself. As such, while the behaviour of children and youth may be deemed to require explanation, the very existence of the categories themselves does not. The issues raised in this chapter concern the degree to which childhood and youth are actually socially constructed categories serving particular social functions. Of greatest interest here are the ways in which childhood and youth are both artefacts of, and vehicles for, social governance.