Life Sciences Commons^™

The Effect Of A Calorie Controlled Diet Containing Walnuts On Substrate Oxidation During 8-Hours In A Room Calorimeter, Linda C. Tapsell, Marijka Batterham, Sze Yen Tan, Eva M. Warensjo

Faculty of Health and Behavioural Sciences - Papers (Archive)

Objective Dietary macronutrient proportions affect substrate utilization, but in practice people consume foods. We hypothesized that in overweight adults, a calorie controlled diet based on core foods and including walnuts may be advantageous in promoting greater use of fat stores. Methods This crossover study tested the effects of diet-related energy expenditure and fat oxidation in 16 overweight individuals over an 8-hour period. The 2 diets included breakfast and lunch meals during the measurement period and an evening meal the night before. They comprised core foods of bread/cereals, fruit, vegetables, milk/yogurt, and meat, and either walnuts (walnut diet) or olive oil …

The Effect Of Detraining On Muscle Strength And Cross-Sectional Area Following Unilateral Resistance Training, Herbert Groeller, John A. Sampson

Faculty of Health and Behavioural Sciences - Papers (Archive)

Muscle strength appears well preserved following short periods of detraining, despite a decline in muscle cross-sectional area and muscle activation. PURPOSE: This study determined the effect a 12-week unilateral elbow flexor resistance training regimen followed by 8 weeks of detraining on muscle cross-sectional area, muscle activation, and dynamic and static strength in trained and non-exercising contralateral limbs. METHODS: Ten males volunteered for the investigation and completed a 4-week pre-treatment training period (50-80%1RM) prior to commencing the experimental resistance training regimen. Subjects attended 3 sessions per week over 12 weeks of experimental training wherein they exercised at 85%1RM. Each subjects trained …

The Effect Of Preparation Conditions And Biopolymer Dispersants On The Properties Of Swnt Buckypapers, Jenny Boge, Luke J. Sweetman, Marc In Het Panhuis, Stephen F. Ralph

Faculty of Science - Papers (Archive)

The effect of varying preparation conditions on the properties of buckypapers made using single-walled carbon nanotubes (SWNTs) was systematically investigated. Changing the sonication time, final dispersion volume or membrane filter used to prepare SWNT-Triton X-100 buckypapers all generally had only a small influence on the density, thickness, contact angle and electrical conductivity of the resulting material. More significant changes were noted when the effects of variations in the above preparation conditions on the mechanical properties and surface morphology of SWNT-Triton X-100 buckypapers were investigated. However, the largest changes in properties were found when various biopolymers (bovine serum albumin, lysozyme, gellan …

The Effect Of Bacteria On The Sensitivity Of Microalgae To Copper In Laboratory Bioassays, Jacqueline Levy, Jenny L. Stauber, Steven A. Wakelin, Dianne F. Jolley

Faculty of Science - Papers (Archive)

Although single-species laboratory toxicity tests with microalgae are sensitive and highly reproducible, they lack environmental realism. Interactions between algae and their associated bacteria, either in the plankton or in biofilms, may alter algal sensitivity to contaminants, which are not mimicked in laboratory toxicity tests. This study investigated the effects of simple algal-bacterial relationships on the sensitivity of laboratory-cultured algae to copper using 72-h algal growth-rate inhibition bioassays. Four species of microalgae were used, two isolates of each; a strain of algae with no microscopically visible and no culturable bacteria present (operationally defined as axenic) and a non-axenic strain. The four …

Using Lidar To Assess The Effect Of Fire And Floods On Upland Peat Bogs, Waterfall Gully, Mount Lofty Ranges, South Australia, Javier Leon Patino, Solomon Buckman, Robert P. Bourman, Rowena Morris, Katherine C. Brownlie

Faculty of Science - Papers (Archive)

A flood exceeding the 100 year average recurrence interval in November 2005 led to the failure of an upland peat bog in Waterfall Gully. The area is prone to severe bushfire and flood events and the control dam at the base of First Falls was filled with sediment sourced from Wilson Bog. A resistant quartzite bar at Fourth Falls has formed a natural constriction point against which burnt logs and debris have collected following previous fire events forming a natural dam resulting in sediment/peat accumulation upstream. The failure of the bog was inevitable as the vegetative material in the log-jam …

Effect Of High Amylose Maize Starches On Colonic Fermentation And Apoptotic Response To Dna-Damage In The Colon Of Rats, Ian L. Brown, Richard K. Le Leu, Graeme P. Young, Ying Hu

Faculty of Health and Behavioural Sciences - Papers (Archive)

Background

We investigated in rats the effects of feeding different forms of high amylose maize starches (HAMS) rich in resistant starch (RS) to understand what the implications of RS heterogeneity might be for colonic biology, including innate cellular responses to DNA-damage.

Methods

A range of maize starches were compared: digestible cornstarch (Control), HYLON^® VII, Hi-maize^® 1043, Hi-maize^® 240, Hi-maize^® 260 and NOVELOSE^® 330. Included in the comparison was Cellulose. End-points after 4 weeks included: pH, short chain fatty acids (SCFA) levels, colonic epithelial cell kinetics and apoptotic response to carcinogen 'azoxymethane' in the colonic epithelium. …