Embodied Practices of Engineering Work

This article explores relationships between activity theoretic and ethnomethodological studies of work and its objects, with specific reference to the case of design practices in civil engineering. My starting point is the shared interest of activity theory and ethnomethodology in the place of artifacts in everyday working practice. I review briefly some basic premises of first ethnomethodological, then activity theoretic studies of artifacts-in-use. I then offer a preliminary account of computer-aided and paper-based design work in civil engineering, informed by both perspectives. My account emphasizes the multiplicity of media and associated objects involved in the work of engineering on the one hand, and their integration in practice into a coherent field of action on the other. The article concludes by returning to the question of relationships between ethnomethodology and activity theory, focusing on differences in their respective stances toward theory itself.     

The impact of urbanisation on avian species: The inextricable link between people and birds

This study investigates the impact of urbanisation on birdlife in a major city. Line transects and point counts were used to survey birds in three habitat types: parkland, residential areas and business/industrial areas. Abundance, richness and diversity of assemblages were determined for all bird species and for those birds native to the area. Behaviours of birds, and of human residents in relation to birds, in these urban areas were documented, including all instances of avian aggression. Bird species, including a subset of native bird species, have greater abundance and richness in parklands. Overall species diversity is greatest in residential habitat types, but native diversity is greatest in parklands. Introduced species are most abundant in business/industrial habitat types. The most frequent aggressive encounters were initiated by noisy miners Manorina melanocephalas, one of the four most common species throughout all habitat types (other common species include the rainbow lorikeet Trichoglossus haematodus, rock dove Columba livia and common myna Sturnus tristis). Other behaviours involved birds utilising food and roost resources and were classified as being caused by active and passive human behaviours. These outcomes indicate that local changes to the environment can impact the bird species by providing different food and roost resources. Human residents and local governments have a range of tools to modify the diversity of urban areas. Further research is needed to determine alternative definitions of modification, such as defining it as open space, and investigating the health of the avian populations in urban areas.     

Informed consent comprehension among vulnerable populations in Ecuador: video-delivered vs. in-person standard method

The informed consent comprehension process is key to engaging potential research subject participation. The aim of this study is to compare informed consent comprehension between two methods: standard and video-delivered. We compared the in-person and video-delivered informed consent process in the Familias Unidas intervention. We evaluated comprehension using a 7-item true/false questionnaire. There were a total of 152 participants in the control group and 87 in the experimental. General characteristics were similar between both groups (p > 0.05). First-attempt informed consent comprehension was higher in the intervention group but was not statistically significant (80% and 78% respectively p = 0.44). A video-delivered informed consent process did not differ from the standard method of informed consent in a low educational and socioeconomic environment.     

Person Recognition from Dynamic Events: The Kinematic Specification of Individual Identity in Walking Style

Three experiments used Johanssons [Perception and Psychophysics, 14, 201–211 (1973)] point-light technique to investigate, whether observers could correctly recognize others from their natural and deceptive walking styles based solely on the kinematic pattern produced when walking. Participants watched pairs of video-clips of unknown young male actors and judged whether the video-clips in each pair were from the same actor or not. The pairs of video-clips consisted of one clip of an actor walking naturally across a room and one clip of an actor attempting to walk deceptively (attempting to make themselves appear considerably older than they actually were). The results from Experiments 1a and 1b demonstrated that participants were fairly accurate at recognizing when the actors in the two video-clips were the same and when they were different. In addition, an invariant of walking style (weight shift) was shown to be an important kinematic feature for the identification of walkers. Experiment 2 demonstrated that those walkers whose weight shift differed between their natural and their deceptive walk were more effective in deceiving observers about their true identity than those whose weight shift was the same in the two walks. The results are discussed in relation to the kinematic specification of identity, and the production and perception of deceptive intent.Experiment 1 was completed as partial fulfillment of the requirements for Part 1 of an MSc (Hons) by the first author. This research was conducted with the financial assistance of University of Canterbury Research Committee Grant #U6279. Thanks are extended to Dean Owen, Rebekah Gunns & Kerry Marsh for their insightful comments.     

Victim Selection and Kinematics: A Point-Light Investigation of Vulnerability to Attack

Three experiments used a point-light methodology to investigate whether movement style specifies vulnerability to physical attack. Both female (Experiment 1) and male (Experiment 2) walkers could be differentiated according to ease-of-attack based solely on the kinematic information provided whilst walking. Specific walking style features predicted ease-of-attack and profiles of prototypically easy to attack and difficult to attack walkers were identified. Variations in walking style as a function of clothing and footwear style were also shown to predict differences in ease-of-attack ratings (Experiment 3). Theoretical and practical implications of these findings are considered.     

A Study of Youth Services Networks from a Political-Economy Perspective

ABSTRACT

Volunteers play a vital role in modern societies by boosting the labor force within both the public and private sectors. While the factors that may lead people to volunteer have been investigated in a number of studies, the means by which volunteering contributes to the well-being of such volunteers is poorly understood. It has been suggested through studies that focus on the absence of depression in volunteers that self-esteem and sense of control may be major determinants of the increased well-being reported by volunteers. This is consistent with the homeostatic model of subjective well-being, which proposes that self-esteem, optimism, and perceived control act as buffers that mediate the relationship between environmental experience and subjective well-being (SWB). Using personal well-being as a more positive measure of well-being than absence of depression, this study further explored the possible mediating role of self-esteem, optimism, and perceived control in the relationship between volunteer status and well-being. Participants (N = 1,219) completed a 97-item survey as part of the Australian Unity Wellbeing project. Variables measured included personal well-being, self-esteem, optimism, and a number of personality and psychological adjustment factors. Analyses revealed that perceived control and optimism, but not self-esteem, mediated the relationship between volunteer status and personal well-being.     

Detecting Happiness: Perceiver Sensitivity to Enjoyment and Non-Enjoyment Smiles

The physiognomic distinctions between spontaneous enjoyment smiles and deliberate non-enjoyment smiles provide the social perceiver with a functional, accessible source of information to help regulate social interaction. Two experiments were performed to investigate whether perceivers were sensitive to this information in a contextually meaningful manner. In Experiment 1, participants were asked to judge whether a target individual was happy or not. The results revealed that participants were indeed sensitive to the differences between enjoyment and non-enjoyment smiles. In Experiment 2, participants performed a priming task without any specific instruction to judge emotional state. Neutral expressions, non-enjoyment smiles and enjoyment smiles were employed as primes in a word valence identification task. The results demonstrated a clear trend indicative of perceiver sensitivity. When compared to a the baseline condition of a neutral expression prime, enjoyment but not non-enjoyment smiles facilitated identification of positive words.