Auric Variations

A female voice softly recites physical and psychological associations of aura colours. On screen, individual words fade in and out rhythmically amid a field of swirling and morphing colours. The animated words correlate with the words being spoken, but not every word is displayed, therefore enabling an alternative range of verbal associations to emerge. “Auric Variations” plays with the mix of affirmation and anxiety that can underscore contemporary subjective experiences and the new age techniques we sometimes used to understand them.

Mingling

In this video, white words and phrases fade quickly in and out amongst small bursting dots of colour. Set to an energetic, synthesised soundtrack, the animated text combines, and sometimes confuses, an internal monologue with dialogue and overheard conversations. The unfolding narrative follows an unnamed narrator through a crowded social event. By visually and textually mixing self-conscious reflections with polite conversations, “Mingling” explores the social niceties and nervous behaviours that often inform our interpersonal experiences. Through its fast-paced and disjointed rendering of verbal communication, the work playfully draws out the sometimes-awkward and uncomfortable dialogues that exist between personal and social, internal and external, imagined and actual. This work was commission by the Museum of Contemporary Art, Australia (Sydney), to celebrate the organisation’s major redevelopment and acknowledge the generosity of individuals and organisations who supported the capital project.

Outlook

This wall-mounted sculpture features eight photographic prints displayed on a computer monitor mounting system. The eight panels each swivel and articulate separately. Together, they combine to create an abstract landscape based on a desktop background image of an idyllic tropical setting. Recalling the workstation of a futures trader, logistics manager, or design guru, the screen armature draws out the simultaneously romantic and vacuous characteristics of the imagery. By combining the visual languages of both physical and on-screen desktop environments with the pictorial traditions of landscape and abstraction, this work questions how and where we deploy nature, desire and wonderment in our increasingly technologised lives.

The drift

In this video, text floats on screen amidst a field of swirling coloured orbs and a stock music soundtrack. The text is sourced from Internet dating websites and combine into a single animated portrait charting an array of likes, dislikes, influences, beliefs and hobbies. This work examines the nature of consciousness and identity in a contemporary context. It reworks the languages of Internet dating websites to question how we construct and communicate our sense of self. Drawing on Zygmunt Bauman’s theoretical work on “liquid modernity”, this work presents an exaggerated take on contemporary identity that emphasizes its construction through consumer tastes, lifestyle choices and relationships with popular culture.

Threshold

In this video, the words of a translated poem fade in and out above an abstract, moving horizon line. The animated words are set to an emotive stock music track. This work examines processes of signification. It emphasizes abstraction and disconnection as fundamental and generative operations in making meaning. Extending on post-structural and deconstructionist ideas, this work questions the signifying processes of translation and metaphor. By emphasizing the abstract qualities of a translated love poem, it questions the sites and mechanisms of signification.

Volume

In this video, words describing socially awkward conversations float around an animated cloud of gas. A cosmic stock music track accompanies the words. This work examines processes of signification. It emphasizes multiplicity and disconnection as fundamental and generative operations in making meaning. By playing with the simultaneity of internal monologues and external conversations, it draws attention to the seams, gaps and slippages that occur in signifying acts.

Outcrop

In this wall-mounted sculpture, speakers are mounted into a timber-veneered cabinet. The speakers play a dark, searching soundtrack. Also mounted on the cabinet is a photographic image of a rocky gully in the American desert. This work examines how we construct, represent and deploy notions of nature in our contemporary lives. It mixes the languages of furniture design, landscape photography and sculpture. Drawing on Zygmunt Bauman’s theoretical work on “liquid modernity”, this work questions how and where we find space for contemplation and reflection in a contemporary context increasingly defined by temporary social bonds and consumer choices.

Spin

“Spin” borrows idioms and metaphors from sports commentary and squeezes them into a single emotional rollercoaster. Accompanied by a driving soundtrack, text appears and disappears one word at a time. As the work progresses, multiple words fade in and out at the same time, filling the screen and testing our ability to read and assimilate these well-worn phrases. On the one hand, the work mimes some of what we enjoy about sport – its ability to take us to another place, to incite passion and emotion, and to enable us to share in common experiences, goals and desires. On the other hand, it plays up the hyperbolic language often associated with sports broadcasting. The very language that helps take us to another place, incite passion and make us feel part of something bigger than ourselves, is pushed to its extreme and starts to burst at the seams. This work was commissioned for “Kick Off: contemporary video art program” at Metricon Stadium, Gold Coast, and supported by Project Services, Department of Public Works, Queensland Government.

Swell

In this video, an abstract kaleidoscopic pattern slowly morphs and changes colour. It is accompanied by a male voice performing a word association or stream-of-consciousness activity. This work examines the nature of consciousness and identity in a contemporary context. It mixes the languages of meditation, new age philosophy and pop-psychology. Drawing on Zygmunt Bauman’s theoretical work on “liquid modernity”, this work questions how and where we find space for contemplation in a contemporary context increasingly defined by temporary social bonds, consumer choices and private anxieties.

Experiences of a walking intervention in a University community : Qualitative perspectives

Background: This study explored the experiences of university employees that participated in a walking intervention that encouraged individuals to walk more throughout their workday. The 10-week program was comprised of 5 phases (i.e. baseline, anticipating barriers, short planned walks, longer planned walks and maintenance) and utilized a pedometer diary and an online website for logging steps. The pedometer diary included “action plans” for addressing barriers and planning walking and the online dashboard provided graphical outputs that allowed participants to visualize whether they were reaching or exceeding their step targets. Methods: A subsample of 12 academic and administrative employees from the study completed open ended questionnaires at the end of the study. The questions focused on capturing the major themes of benefits/mediators and problems/moderators of the program and were assessed using phenomenological approaches. Results: Participants found a raised consciousness of physical inactivity throughout the work day. They also found it useful to have a graphical display of physical activity patterns, but found time constraints and lack of managerial support to be the primary barriers/moderators of the program. Those most likely to withdraw from the program experienced technical difficulties with objective monitors and the online website. Conclusions: Findings highlight the value in being involved in a group forum and provide insights into the challenges of supporting such programs within the workplace.

Frank-starling control of a left ventricular assist device

A physiological control system was developed for a rotary left ventricular assist device (LVAD) in which the target pump flow rate (LVADQ) was set as a function of left atrial pressure (LAP), mimicking the Frank-Starling mechanism. The control strategy was implemented using linear PID control and was evaluated in a pulsatile mock circulation loop using a prototyped centrifugal pump by varying pulmonary vascular resistance to alter venous return. The control strategy automatically varied pump speed (2460 to 1740 to 2700 RPM) in response to a decrease and subsequent increase in venous return. In contrast, a fixed-speed pump caused a simulated ventricular suction event during low venous return and higher ventricular volumes during high venous return. The preload sensitivity was increased from 0.011 L/min/mmHg in fixed speed mode to 0.47L/min/mmHg, a value similar to that of the native healthy heart. The sensitivity varied automatically to maintain the LAP and LVADQ within a predefined zone. This control strategy requires the implantation of a pressure sensor in the left atrium and a flow sensor around the outflow cannula of the LVAD. However, appropriate pressure sensor technology is not yet commercially available and so an alternative measure of preload such as pulsatility of pump signals should be investigated.

Response to comments on "Productivity is a poor predictor of plant species richness"

Pan et al. claim that our results actually support a strong linear positive relationship between productivity and richness, whereas Fridley et al. contend that the data support a strong humped relationship. These responses illustrate how preoccupation with bivariate patterns distracts from a deeper understanding of the multivariate mechanisms that control these important ecosystem properties.