1,429 research outputs found
The scaling of diving time budgets : insights from an optimality approach
No full textThe authors acknowledge the Natural Environment Research Council for support with this work (grant NER/A/S/2003/00616).Simple scaling arguments suggest that, among air-breathing divers, dive duration should scale approximately with mass to the one-third power. Recent phylogenetic analyses appear to confirm this. The same analyses showed that duration of time spent at the surface between dives has scaling very similar to that of dive duration, with the result that the ratio of dive duration to surface pause duration is approximately mass invariant. This finding runs counter to other arguments found in the diving literature that suggest that surface pause duration should scale more positively with mass, leading to a negative scaling of the dive-pause ratio. We use a published model of optimal time allocation in the dive cycle to show that optimal decisions can predict approximate mass invariance in the dive-pause ratio, especially if metabolism scales approximately with mass to the two-thirds power (as indicated by some recent analyses) and oxygen uptake is assumed to have evolved to supply the body tissues at the required rate. However, emergent scaling rules are sensitive to input parameters, especially to the relationship between the scaling of metabolism and oxygen uptake rate at the surface. Our results illustrate the utility of an optimality approach for developing predictions and identifying key areas for empirical research on the allometry of diving behavior.Peer reviewe
Developing DIVE, a design-led futures technique for SMEs
No full textFutures techniques have long been used in large enterprises as designerly means to explore the future and guide innovation. In the automotive industry, for instance, the development of concept cars is a technique which has repeatedly proven its value. However, while big companies have broadly embraced futures techniques, small- and medium-sized enterprises(SMEs) have lagged behind in applying them, largely because they are too resourceintensive and poorly suited to the SMEs’ needs and idiosyncrasies. To address this issue, we developed DIVE: Design, Innovation, Vision, and Exploration, a design-led futures technique for SMEs. Its development began with an inquiry into concept cars in the automotive industry and concept products and services in other industries. We then combined the insights derived from these design practices with elements of the existing techniques of critical design and design fiction into the creation of DIVE’s preliminary firstversion, which was then applied and evaluated in two iterations with SMEs, resulting in DIVE’s alpha version. After both iterations in context, it seems that DIVE suits the SMEs because of its compact and inexpensive activities which emphasize making and storytelling. Although the results of these activities might be less flashy than concept cars, these simple prototypes and videos help SMEs internalize and share a clear image of a preferable future, commonly known as vision. Developing DIVE thus helped us explore how design cansupport SMEs in envisioning the future in the context of innovation.Accepted author manuscriptDesign Conceptualization and CommunicationProduct Innovatie Managemen
Honeymoon Dive
No full textAt 10.42 a.m. on 22 October 2003, while diving on the wreck of the SS Yongala on the Great Barrier Reef, an American tourist photographed his new wife for their honeymoon album. Instead the photo would become a vital police exhibit. On the right-hand side of the shot, Tina Watson's body lay 27 metres down on the ocean floor, one arm outstretched, reaching upwards. This is the photograph that shocked millions across Australia and the US.
How could a healthy young woman have died, a mere seven minutes into her dive, when Gabe Watson, her buddy and husband of only eleven days, was a certified rescue diver? And why did he later relay sixteen different versions of what happened that day to other divers, police, friends and family?
Did he cold-bloodedly shut off her air or did he panic after claiming her flailing arms dislodged his mask and regulator? When he ascended to the surface, was it to get help or to callously abandon his bride to her ultimate fate?
These remain the captivating questions at the heart of this true-life thriller. Researched across two continents, Honeymoon Dive is in turns disturbing and enthralling as it painstakingly reconstructs events behind one of Australia's most darkly fascinating tragedies
Supplemental Material, Online_Appendix_D - The Trajectory Touchpoint Technique: A Deep Dive Methodology for Service Innovation
No full textSupplemental Material, Online_Appendix_D for The Trajectory Touchpoint Technique: A Deep Dive Methodology for Service Innovation by Lynn Sudbury-Riley, Philippa Hunter-Jones, Ahmed Al-Abdin, Daniel Lewin and Mohabir Vic Naraine in Journal of Service Research</p
Supplemental Material, Online_Appendix_C - The Trajectory Touchpoint Technique: A Deep Dive Methodology for Service Innovation
No full textSupplemental Material, Online_Appendix_C for The Trajectory Touchpoint Technique: A Deep Dive Methodology for Service Innovation by Lynn Sudbury-Riley, Philippa Hunter-Jones, Ahmed Al-Abdin, Daniel Lewin and Mohabir Vic Naraine in Journal of Service Research</p
Supplemental Material, JSR-18-164_Exec_summary - The Trajectory Touchpoint Technique: A Deep Dive Methodology for Service Innovation
No full textSupplemental Material, JSR-18-164_Exec_summary for The Trajectory Touchpoint Technique: A Deep Dive Methodology for Service Innovation by Lynn Sudbury-Riley, Philippa Hunter-Jones, Ahmed Al-Abdin, Daniel Lewin and Mohabir Vic Naraine in Journal of Service Research</p
Supplemental Material, Online_Appendix_A - The Trajectory Touchpoint Technique: A Deep Dive Methodology for Service Innovation
No full textSupplemental Material, Online_Appendix_A for The Trajectory Touchpoint Technique: A Deep Dive Methodology for Service Innovation by Lynn Sudbury-Riley, Philippa Hunter-Jones, Ahmed Al-Abdin, Daniel Lewin and Mohabir Vic Naraine in Journal of Service Research</p
Supplemental Material, Online_Appendix_B - The Trajectory Touchpoint Technique: A Deep Dive Methodology for Service Innovation
No full textSupplemental Material, Online_Appendix_B for The Trajectory Touchpoint Technique: A Deep Dive Methodology for Service Innovation by Lynn Sudbury-Riley, Philippa Hunter-Jones, Ahmed Al-Abdin, Daniel Lewin and Mohabir Vic Naraine in Journal of Service Research</p
Dive Tourism: Evaluating Service Quality
No full textThrough the application of importance- performance analysis (/PA), the author investigated the conceptualization and measurement of service quality for tour operators in the scuba diving industry Findings from a study of consumer perceptions of service quality as they relate to a dive tour operator in Western Australia revealed the core service quality dimensions hat need to be improved for the operator and demonstrated the values and relative simplicity of the importance-performance analyses for dive tour operators generall
The Nature of Americans: A Dive Into the Findings
No full textIn this episode, we take a dive into the findings from the Nature of Americans study, an initiative led by Dr. Stephen Kellert and DJ Case & Associates to understand and connect Americans to nature. Our guests are Dave Case and Daniel Escher from DJ Case and Associates. Also check out our broadcast on this topic at https://fws.rev.vbrick.com/#/videos/8f7abcf6-42ca-4635-bd77-5a927acc1b3
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