Explicit time-stepping for moving meshes

In order to move the nodes in a moving mesh method a time-stepping scheme is required which is ideally explicit and non-tangling (non-overtaking in one dimension (1-D)). Such a scheme is discussed in this paper, together with its drawbacks, and illustrated in 1-D in the context of a velocity-based Lagrangian conservation method applied to first order and second order examples which exhibit a regime change after node compression. An implementation in multidimensions is also described in some detail.

Storage of stones by Jays Garrulus glandarius

The aims of this study were to test whether or not Jays Garrulus glandarius store stones and, if so, to examine the conditions under which they store stones. By directly observing the behaviour of five captive jays that were housed individually in flight cages, we found that stones were stored only in the absence of food items or when food items were no longer available to store and that there was a strong preference for storing stones that resembled acorns in both size and appearance (in terms of colour, shape and smoothness of the surface) and were undamaged rather than heavily chipped. These results are discussed in terms of Tinbergen's classic ethological model in which animals respond selectively to certain key features and ignore other features of the stimulus.

Health service systems and comorbidity: stepping up to the mark

Clients with co-occurring substance use and mental health disorders are not well served in traditional health care systems where specialist services offer segregated interventions and the client is left to negotiate required treatment across both systems. In recent years, policy change guiding the treatment of dual diagnosis in the United States, United Kingdom, Australia and elsewhere has triggered the development of diverse models of treatment, each of which function at different points on a continuum from serial to fully integrated care. This paper outlines key models and provides examples, while considering their potential for appropriately addressing the needs of this client group. Consideration is given to the benefits of an interaction between stepped care and the chosen model, as a means of enhancing care efficiency while retaining the focus on positive outcomes.

Wings or winds : inferring bat migration in a stepping-stone archipelago

Eocene ocean currents and prevailing winds correlate with over-water dispersals of terrestrial mammals from Africa to Madagascar. Since the Early Miocene (about 23 Ma), these currents flowed in the reverse direction, from the Indian Ocean towards Africa. The Comoro Islands are equidistant between Africa and Madagascar and support an endemic land vertebrate fauna that shares recent ancestry predominantly with Madagascar. We examined whether gene flow in two Miniopterus bat species endemic to the Comoros and Madagascar correlates with the direction of current winds, using uni- and bi-parentally inherited markers with different evolutionary rates. Coalescence-based analyses of mitochondrial matrilines support a Pleistocene (approximately 180 000 years ago) colonization event from Madagascar west to the Comoros (distance: 300 km) in the predicted direction. However, nuclear microsatellites show that more recent gene flow is restricted to a few individuals flying against the wind, from Grande Comore to Anjouan (distance: 80 km).

Migrant stones : stonewalling with ghost muscle

A series of events: workshop in the collective memory and response to the stones of SW Vic, followed by a stone walling workshop led by professional stone wallers, and the construction of a permanent section of stone wall on the foreshore of Lake Bolac.

Can primary care team-based transition to insulin improve outcomes in adults with type 2 diabetes: the stepping up to insulin cluster randomized controlled trial protocol

Type 2 diabetes (T2D) brings significant human and healthcare costs. Its progressive nature means achieving normoglycaemia is increasingly difficult, yet critical to avoiding long term vascular complications. Nearly one-half of people with T2D have glycaemic levels out of target. Insulin is effective in achieving glycaemic targets, yet initiation of insulin is often delayed, particularly in primary care. Given limited access to specialist resources and the size of the diabetes epidemic, primary care is where insulin initiation must become part of routine practice. This would also support integrated holistic care for people with diabetes. Our Stepping Up Program is based on a general practitioner (GP) and practice nurse (PN) model of care supported appropriately by endocrinologists and credentialed diabetes educator-registered nurses. Pilot work suggests the model facilitates integration of the technical work of insulin initiation within ongoing generalist care.

Stepping out of our comfort zones: pre-service teachers' responses to a critical analysis of gender/power relations in sexuality education

This paper discusses pre-service teachers' responses to a critical analysis of gender/power relations using examples from a final assessment for an intensive elective unit called Teaching Sexuality in the Middle Years. This unit critically examines gender/ power relations, the production of difference, heteronormativity and pleasure and desire, employing a feminist post-structural framework. Despite the focus on critical thinking, reflection and interrogating structural inequalities in this unit some students were resistant or unable to engage with this approach in their assessments, although appearing to do so in workshops. We consider the broad range of sexuality education discourses mobilised by this unit to try to make sense of what looks like resistance but may be something more complex and difficult to negotiate. The paper ends with a consideration of some of the implications of this approach for practice.