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Full-Text Articles in Social and Behavioral Sciences

High Muscle Mitochondrial Volume And Aerobic Capacity In A Small Marsupial (Sminthopsis Crassicaudata) Reveals Flexible Links Between Energy-Use Levels In Mammals, Terence Dawson, Koa Webster, Enhua Lee, William A. Buttemer Dec 2012

High Muscle Mitochondrial Volume And Aerobic Capacity In A Small Marsupial (Sminthopsis Crassicaudata) Reveals Flexible Links Between Energy-Use Levels In Mammals, Terence Dawson, Koa Webster, Enhua Lee, William A. Buttemer

Faculty of Science, Medicine and Health - Papers: part A

We investigated the muscle structure–function relationships that underlie the aerobic capacity of an insectivorous, small (~15 g) marsupial, Sminthopsis crassicaudata (Family: Dasyuridae), to obtain further insight into energy use patterns in marsupials relative to those in placentals, their sister clade within the Theria (advanced mammals). Disparate hopping marsupials (Suborder Macropodiformes), a kangaroo (Macropus rufus) and a rat-kangaroo (Bettongia penicillata), show aerobic capabilities as high as those of ‘athletic’ placentals. Equivalent muscle mitochondrial volumes and cardiovascular features support these capabilities. We examined S. crassicaudata to determine whether highly developed aerobic capabilities occur elsewhere in marsupials, rather than being restricted to the …


Using A Micro-Uav For Ultra-High Resolution Multi-Sensor Observations Of Antarctic Moss Beds, Arko Lucieer, Sharon Robinson, Darren Turner, Steve Harwin, Josh Kelcey Jan 2012

Using A Micro-Uav For Ultra-High Resolution Multi-Sensor Observations Of Antarctic Moss Beds, Arko Lucieer, Sharon Robinson, Darren Turner, Steve Harwin, Josh Kelcey

Faculty of Science, Medicine and Health - Papers: part A

This study is the first to use an Unmanned Aerial Vehicle (UAV) for mapping moss beds in Antarctica. Mosses can be used as indicators for the regional effects of climate change. Mapping and monitoring their extent and health is therefore important. UAV aerial photography provides ultra-high resolution spatial data for this purpose. We developed a technique to extract an extremely dense 3D point cloud from overlapping UAV aerial photography based on structure from motion (SfM) algorithms. The combination of SfM and patch-based multi-view stereo image vision algorithms resulted in a 2 cm resolution digital terrain model (DTM). This detailed topographic …


Hybrid Nanomembranes For High Power And High Energy Density Supercapacitors And Their Yarn Application, Jae Ah Lee, Min-Kyoon Shin, Seon Jeong Kim, Geoffrey Maxwell Spinks, Gordon G. Wallace, Raquel Ovalle-Robles, Marcio D. Lima, Mikhail E. Kozlov, Ray H. Baughman Jan 2012

Hybrid Nanomembranes For High Power And High Energy Density Supercapacitors And Their Yarn Application, Jae Ah Lee, Min-Kyoon Shin, Seon Jeong Kim, Geoffrey Maxwell Spinks, Gordon G. Wallace, Raquel Ovalle-Robles, Marcio D. Lima, Mikhail E. Kozlov, Ray H. Baughman

Faculty of Science, Medicine and Health - Papers: part A

Ultrathin (thicknessnm) electrically conducting membranes can be used as electrodes for sensors, actuators, optical devices, fuel cells, scaffolds for assembling nanoparticles, and separation of biological macromolecules.1-6 Various approaches have been suggested for the fabrication of free-standing nanomembranes based on organic polymers and/or inorganic materials: spin-casting of films,7 layer-by-layer assembly of polyelectrolyte multilayers,8 cross-linking of self-assembled monolayers,9 and assembly of triblock copolymers.10,11 Loading materials such as gold nanoparticles12 or carbon nanotubes13 make membranes robust and electrically conductive. However, these methods are often time-consuming and have some limitations in terms of achievable electrical and electrochemical membrane performance as well as scale-up. Alternative …


Influence Of High Glycemic Index And Glycemic Load Diets On Blood Pressure During Adolescence, Bamini Gopinath, Victoria M. Flood, Elena Rochtchina, Louise A. Baur, Wayne Smith, Paul Mitchell Jan 2012

Influence Of High Glycemic Index And Glycemic Load Diets On Blood Pressure During Adolescence, Bamini Gopinath, Victoria M. Flood, Elena Rochtchina, Louise A. Baur, Wayne Smith, Paul Mitchell

Faculty of Health and Behavioural Sciences - Papers (Archive)

We aimed to prospectively examine the association between the glycemic index and glycemic load of foods consumed and the dietary intakes of carbohydrates, sugars, fiber, and principal carbohydrate-containing food groups (eg, breads, cereals, and sugary drinks) with changes in blood pressure during adolescence. A total of 858 students aged 12 years at baseline (422 girls and 436 boys) were examined from 2004-2005 to 2009-2011. Dietary data were assessed from validated semiquantitative food frequency questionnaires. Blood pressure was measured using a standard protocol. In girls, after adjusting for age, ethnicity, parental education, parental history of hypertension, baseline height, baseline blood pressure, …