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Full-Text Articles in Social and Behavioral Sciences

Shear Lag And Eccentricity Effects Of Bolted Connections In Cold-Formed Steel Sections, Lip H. Teh, Veysel Yazici Nov 2013

Shear Lag And Eccentricity Effects Of Bolted Connections In Cold-Formed Steel Sections, Lip H. Teh, Veysel Yazici

Veysel Yazici

This paper examines the "three factors" approach previously presented by the senior author for determining the net section efficiency of a bolted cold-formed steel open profile. One objective is to ascertain that the net section efficiency is governed by three factors: the in-plane shear lag associated with stress concentration around a bolt hole that is also present in a flat sheet, the out-of-plane shear lag that is also present in a bi-symmetric I-section bolted at the flanges only, and the bending moment arising from the connection eccentricity with respect to the neutral axis. This paper presents the test results of …


Effects Of Feed And Draw Solution Temperature And Transmembrane Temperature Difference On The Rejection Of Trace Organic Contaminants By Forward Osmosis, Ming Xie, William E. Price, Long D. Nghiem, Menachem Elimelech Oct 2013

Effects Of Feed And Draw Solution Temperature And Transmembrane Temperature Difference On The Rejection Of Trace Organic Contaminants By Forward Osmosis, Ming Xie, William E. Price, Long D. Nghiem, Menachem Elimelech

William E. Price

The effects of feed and draw solution temperature and transmembrane temperature difference on the rejection of 12 trace organic contaminants (TrOCs) by two forward osmosis (FO) membranes were investigated. The membrane structure parameter (S) and the reverse salt (NaCl) flux selectivity (RSFS) were constant over the temperature range of 20-40 1C, suggesting that within this range, the solution temperature did not significantly influence the membrane polymeric structure. Draw solution properties, including diffusivity, viscosity, and osmotic pressure, played an important role in water and reverse salt (NaCl) flux behaviour and TrOC rejection. Pure water and salt (NaCl) permeability coefficients of the …


Effects Of Caustic Cleaning On Pore Size Of Nanofiltration Membranes And Their Rejection Of Trace Organic Chemicals, Alexander Simon, James A. Mcdonald, Stuart J. Khan, William E. Price, Long D. Nghiem Oct 2013

Effects Of Caustic Cleaning On Pore Size Of Nanofiltration Membranes And Their Rejection Of Trace Organic Chemicals, Alexander Simon, James A. Mcdonald, Stuart J. Khan, William E. Price, Long D. Nghiem

William E. Price

The aim of this study was to assess the impact of caustic cleaning on the rejection of three different trace organic chemical (TrOC) groups (i.e. neutral hydrophilic, neutral hydrophobic and negatively charged) by two nanofiltration (NF) membranes ‒ namely NF270 and NF90. Chemical cleaning was simulated by exposing virgin membrane samples to commercial caustic cleaning formulations as well as sodium hydroxide solutions containing analytical grade additives such as sodium dodecyl sulfate or ethylenediaminetetraacetic acid. The membrane average pore size before and after exposure to a commercially available caustic cleaning formulation was determined based on the pore transport model. The results …


Pork, Beef And Chicken Have Similar Effects On Acute Satiety And Appetite Regulatory Hormone Responses, Karen E. Charlton, Linda C. Tapsell, Marijka Batterham, Jane E. O'Shea, Rebecca L. Thorne, Qingsheng Zhang, Eleanor Beck Aug 2013

Pork, Beef And Chicken Have Similar Effects On Acute Satiety And Appetite Regulatory Hormone Responses, Karen E. Charlton, Linda C. Tapsell, Marijka Batterham, Jane E. O'Shea, Rebecca L. Thorne, Qingsheng Zhang, Eleanor Beck

Qingsheng Zhang

No abstract provided.


Pork, Beef And Chicken Have Similar Effects On Acute Satiety And Hormonal Markers Of Appetite, Karen Charlton, Linda Tapsell, Marijka Batterham, Rebecca Thorne, Jane O'Shea, Qingsheng Zhang, Eleanor Beck Aug 2013

Pork, Beef And Chicken Have Similar Effects On Acute Satiety And Hormonal Markers Of Appetite, Karen Charlton, Linda Tapsell, Marijka Batterham, Rebecca Thorne, Jane O'Shea, Qingsheng Zhang, Eleanor Beck

Qingsheng Zhang

The effects of three different meat-containing breakfast meals (pork, beef or chicken) on acute satiety and appetite regulatory hormones were compared using a within-subjects study design. Thirty fasting non-smoking pre-menopausal women attended a research centre on three test days to consume, a meat-containing meal matched in energy (kJ) and protein content, palatability, and appearance. No difference was found between meat groups for either energy intake or macronutrient profile of food consume data subsequent ad libitum buffet lunch, or over the rest of the day. Visual Analogue Scale(VAS) ratings for hunger and satiety over an 180min period did not differ between …


Cholesterol-Lowering Effects Of B-Glucan Containing Breakfast Cereals And Snack Bars, Karen Charlton, Linda Tapsell, Marijka Batterham, Jane O'Shea, Rebecca Thorne, Qingsheng Zhang, Eleanor Beck Aug 2013

Cholesterol-Lowering Effects Of B-Glucan Containing Breakfast Cereals And Snack Bars, Karen Charlton, Linda Tapsell, Marijka Batterham, Jane O'Shea, Rebecca Thorne, Qingsheng Zhang, Eleanor Beck

Qingsheng Zhang

No abstract provided.


Foodgrain Price Policies In India: The Effects On Foodgrain Production And Rural Poverty, E J. Wilson Jul 2013

Foodgrain Price Policies In India: The Effects On Foodgrain Production And Rural Poverty, E J. Wilson

Edgar Wilson

There is a large research literature which quantifies the important contributions of public, private and human capital to economic growth and poverty reduction.


Independent Effects Of Local And Global Binocular Disparity On The Perceived Convexity Of Stereoscopically Presented Faces In Scenes, Harold Matthews, Harold Hill, Stephen Palmisano Jul 2013

Independent Effects Of Local And Global Binocular Disparity On The Perceived Convexity Of Stereoscopically Presented Faces In Scenes, Harold Matthews, Harold Hill, Stephen Palmisano

Harold Hill

No abstract provided.


Self-Reported Side Effects Of Breast Cancer Treatment: A Cross-Sectional Study Of Incidence, Associations, And The Influence Of Exercise, Sheridan A. Gho, Julie R. Steele, Sandra C. Jones, Bridget J. Munro Jul 2013

Self-Reported Side Effects Of Breast Cancer Treatment: A Cross-Sectional Study Of Incidence, Associations, And The Influence Of Exercise, Sheridan A. Gho, Julie R. Steele, Sandra C. Jones, Bridget J. Munro

Sandra Jones

Purpose Side effects as a result of breast cancer treatment may have a lasting detrimental impact on quality of life. Exercise has been shown to be an effective intervention in post-treatment care. This study aimed to gain a better understanding of breast cancer treatment-related side effects through identifying potential patient characteristic associations, including current levels of exercise. Methods Four hundred and thirty-two breast cancer patients completed an online survey covering their treatment and demographic background, current exercise levels, and self-reported treatment side effects. Side effects were considered in a binary logistic regression against age, surgery, currently undergoing treatment, and exercise …


Saving Lives Or Raising Revenue: Analysing Media Coverage Of The Alcopops Tax In Light Of The Evidence On Its Effects, Sandra C. Jones, Laura Robinson Jun 2013

Saving Lives Or Raising Revenue: Analysing Media Coverage Of The Alcopops Tax In Light Of The Evidence On Its Effects, Sandra C. Jones, Laura Robinson

Sandra Jones

The Australian Government increased the tax on ready-to-drink (RTD) alcohol beverages in 2008, in order to address concerns about increasing alcohol consumption among young people. This decision resulted in significant debate and discussion in the media, and in academic circles. The aim of the current study was to examine media coverage of the debate – and particularly the arguments posed in favour of and against the tax – now that we have objective evidence of its impact. We find that business owners and industry groups were vocal in the media, raising a number of arguments in opposition to the tax; …


Anthropogenic Effects In A Coastal Lagoon: Geochemical Characterization Of Burrill Lake, Nsw, Australia, Brian Jones, Hannah Killian, Bryan Chenhall, Craig Sloss Jun 2013

Anthropogenic Effects In A Coastal Lagoon: Geochemical Characterization Of Burrill Lake, Nsw, Australia, Brian Jones, Hannah Killian, Bryan Chenhall, Craig Sloss

B. G. Jones

Burrill Lake, a small coastal lagoon on the south coast of New South Wales, developed as an impounded drowned river valley following the post-glacial marine transgression. Marine sand fills the entrance to the lagoon whereas the back-barrier basin has accumulated organic-rich mud and sandy bayhead deltas. The bilobate form of the estuary coincides with two different catchment lithologies and land use patterns. The northern lobe drains an agricultural catchment and has a much larger bayhead delta than the southern lobs that drains natural and state forest. Sedimentation rates within the muddy lagoonal deposits are about 1.7 mm/yr. The distributions of …


Extracellular Chaperones Modulate The Effects Of Alzheimer's Patient Cerebrospinal Fluid On A Beta(1-42) Toxicity And Uptake , Justin J. Yerbury, Mark R. Wilson May 2013

Extracellular Chaperones Modulate The Effects Of Alzheimer's Patient Cerebrospinal Fluid On A Beta(1-42) Toxicity And Uptake , Justin J. Yerbury, Mark R. Wilson

Mark R Wilson

Alzheimer's disease is characterised by the inappropriate death of brain cells and accumulation of the A beta peptide in the brain. Thus, it is possible that there are fundamental differences between Alzheimer's disease patients and healthy individuals in their abilities to clear A beta from brain fluid and to protect neurons from A beta toxicity. In the present study, we examined (1) the cytotoxicity of Alzheimer's disease cerebrospinal fluid (CSF) compared to control CSF, (2) the ability of Alzheimer's disease and control CSF to protect cells from A beta toxicity and to promote cell-mediated clearance of A beta and lastly …


Short Term Effects Of Energy Restriction And Dietary Fat Sub-Type On Weight Loss And Disease Risk Factors, Linda C. Tapsell, Marijka Batterham, Xu-Feng Huang, Sze Yen Tan, Grigorijs Teuss, Karen E. Charlton, Jane E. O'Shea, Eva M. Warensjo Apr 2013

Short Term Effects Of Energy Restriction And Dietary Fat Sub-Type On Weight Loss And Disease Risk Factors, Linda C. Tapsell, Marijka Batterham, Xu-Feng Huang, Sze Yen Tan, Grigorijs Teuss, Karen E. Charlton, Jane E. O'Shea, Eva M. Warensjo

Karen E. Charlton

Background and aims: Decreasing energy intake relative to energy expenditure is the indisputable tenet of weight loss. In addition to caloric restriction modification of the type of dietary fat may provide further benefits. The aim of the present study was to examine the effect of energy restriction alone and with dietary fat modification on weight loss and adiposity, as well as on risk factors for obesity related disease. Methods and results: One-hundred and fifty overweight men and women were randomized into a 3 month controlled trial with four low fat (30% energy) dietary arms: (1) isocaloric (LF); (2) isocaloric with …


Long-Term Effects Of Increased Dietary Polyunsaturated Fat From Walnuts On Metabolic Parameters In Type Ii Diabetes, Cassandra Quick, Marijka Batterham, Linda Tapsell, Lynda Gillen, Karen Charlton, Sze Yen Tan, Grigorijs Teuss, Sayne Mam Dalton Apr 2013

Long-Term Effects Of Increased Dietary Polyunsaturated Fat From Walnuts On Metabolic Parameters In Type Ii Diabetes, Cassandra Quick, Marijka Batterham, Linda Tapsell, Lynda Gillen, Karen Charlton, Sze Yen Tan, Grigorijs Teuss, Sayne Mam Dalton

Karen E. Charlton

Background/Objectives: Most dietary interventions have metabolic effects in the short term, but long-term effects may require dietary fat changes to influence body composition and insulin action. This study assessed the effect of sustained high polyunsaturated fatty acids (PUFA) intake through walnut consumption on metabolic outcomes in type II diabetes.Subjects/Methods: Fifty overweight adults with non-insulin-treated diabetes (mean age 54±8.7 years) were randomized to receive low-fat dietary advice ±30 g per day walnuts targeting weight maintenance (around 2000 kcal, 30% fat) for 1 year. Differences between groups were assessed by changes in anthropometric values (body weight, body fat, visceral adipose tissue) and …


Pork, Beef And Chicken Have Similar Effects On Acute Satiety And Appetite Regulatory Hormone Responses, Karen E. Charlton, Linda C. Tapsell, Marijka Batterham, Jane E. O'Shea, Rebecca L. Thorne, Qingsheng Zhang, Eleanor Beck Apr 2013

Pork, Beef And Chicken Have Similar Effects On Acute Satiety And Appetite Regulatory Hormone Responses, Karen E. Charlton, Linda C. Tapsell, Marijka Batterham, Jane E. O'Shea, Rebecca L. Thorne, Qingsheng Zhang, Eleanor Beck

Karen E. Charlton

No abstract provided.


Pork, Beef And Chicken Have Similar Effects On Acute Satiety And Hormonal Markers Of Appetite, Karen Charlton, Linda Tapsell, Marijka Batterham, Rebecca Thorne, Jane O'Shea, Qingsheng Zhang, Eleanor Beck Apr 2013

Pork, Beef And Chicken Have Similar Effects On Acute Satiety And Hormonal Markers Of Appetite, Karen Charlton, Linda Tapsell, Marijka Batterham, Rebecca Thorne, Jane O'Shea, Qingsheng Zhang, Eleanor Beck

Karen E. Charlton

The effects of three different meat-containing breakfast meals (pork, beef or chicken) on acute satiety and appetite regulatory hormones were compared using a within-subjects study design. Thirty fasting non-smoking pre-menopausal women attended a research centre on three test days to consume, a meat-containing meal matched in energy (kJ) and protein content, palatability, and appearance. No difference was found between meat groups for either energy intake or macronutrient profile of food consume data subsequent ad libitum buffet lunch, or over the rest of the day. Visual Analogue Scale(VAS) ratings for hunger and satiety over an 180min period did not differ between …


The Effects Of Phencyclidine Treatment On The Nmdar-Nrg1 Signalling Pathway In Rats, T Morosin, T Du Bois, K Newell, Xu-Feng Huang Apr 2013

The Effects Of Phencyclidine Treatment On The Nmdar-Nrg1 Signalling Pathway In Rats, T Morosin, T Du Bois, K Newell, Xu-Feng Huang

Xu-Feng Huang

No abstract provided.


Effects Of Dopamine D2 Receptor Partial Agonist Bifeprunox On Body Weight Gain, Food And Water Intake In Male Rats, M De Santis, Xu-Feng Huang, C Deng Apr 2013

Effects Of Dopamine D2 Receptor Partial Agonist Bifeprunox On Body Weight Gain, Food And Water Intake In Male Rats, M De Santis, Xu-Feng Huang, C Deng

Xu-Feng Huang

An abstract of a poster presentation that presented at Australian Neuroscience Society 32nd Annual meeting.


Environmental Effects Of Ozone Depletion And Its Interactions With Climate Change: Progress Report, 2011, Anthony L. Andrady, Pieter J. Aucamp, Amy T. Austin, Alkiviadis F. Bais, Carlos L. Ballare, Lars Olof Bjorn, Janet F. Bornman, Martyn Caldwell, Anthony P. Cullen, David J. Erickson, Frank R. De Gruijl, Donat-P Hader, Walter Helbling, Mohammad Ilyas, Janice Longstreth, Robyn Lucas, Richard L. Mckenzie, Sasha Madronich, Mary Norval, Nigel D. Paul, Halim Redhwi, Sharon Robinson, Min Shao, Keith R. Solomon, Barbara Sulzberger, Yukio Takizawa, Xiaoyan Tang, Ayako Torikai, Jan C. Van Der Leun, Craig Williamson, Stephen R. Wilson, Robert C. Worrest, Richard G. Zepp Apr 2013

Environmental Effects Of Ozone Depletion And Its Interactions With Climate Change: Progress Report, 2011, Anthony L. Andrady, Pieter J. Aucamp, Amy T. Austin, Alkiviadis F. Bais, Carlos L. Ballare, Lars Olof Bjorn, Janet F. Bornman, Martyn Caldwell, Anthony P. Cullen, David J. Erickson, Frank R. De Gruijl, Donat-P Hader, Walter Helbling, Mohammad Ilyas, Janice Longstreth, Robyn Lucas, Richard L. Mckenzie, Sasha Madronich, Mary Norval, Nigel D. Paul, Halim Redhwi, Sharon Robinson, Min Shao, Keith R. Solomon, Barbara Sulzberger, Yukio Takizawa, Xiaoyan Tang, Ayako Torikai, Jan C. Van Der Leun, Craig Williamson, Stephen R. Wilson, Robert C. Worrest, Richard G. Zepp

Sharon Robinson

The parties to the Montreal Protocol are informed by three panels of experts. One of these is the Environmental Effects Assessment Panel (EEAP), which deals with two focal issues. The first focus is the effects of increased UV radiation on human health, animals, plants, biogeochemistry, air quality, and materials. The second focus is on interactions between UV radiation and global climate change and how these may affect humans and the environment. When considering the effects of climate change, it has become clear that processes resulting in changes in stratospheric ozone are more complex than believed previously. As a result of …


Remarkable Synergistic Effects In A Mixed Porphyrin Dye-Sensitized Tio2 Film, Attila J. Mozer, Gordon G. Wallace, David L. Officer, Matthew Griffith, Pawel W. Wagner, Klaudia K. Wagner, George Tsekouras, Shogo Mori, Ying Dong Mar 2013

Remarkable Synergistic Effects In A Mixed Porphyrin Dye-Sensitized Tio2 Film, Attila J. Mozer, Gordon G. Wallace, David L. Officer, Matthew Griffith, Pawel W. Wagner, Klaudia K. Wagner, George Tsekouras, Shogo Mori, Ying Dong

Gordon Wallace

A remarkable 300% efficiency enhancement driven by a matching increase in the short circuit current was observed in a mixed porphyrin dye-sensitized solar cell constructed from two dyes in a 3:1 ratio. Absorbed photon-to-current conversion efficiency measurements indicate an improved charge injection yield for both dyes in the mixture. Several possible origins for the observed performance enhancement are discussed.


Effects Of The Entrepreneurial And Managerial Orientations Of Owner-Managers On Company Performance: An Empirical Test In Sri Lanka, Anura De Zoysa, Palli Mulla K A Chandrakumara, Athula Manawaduge Feb 2013

Effects Of The Entrepreneurial And Managerial Orientations Of Owner-Managers On Company Performance: An Empirical Test In Sri Lanka, Anura De Zoysa, Palli Mulla K A Chandrakumara, Athula Manawaduge

Anil Chandrakumara

In this paper we have made strong distinction between managerial and entrepreneurial orientations of leadership and argued that these orientations should have different effects on the performance of companies. Data were collected from a sample of 204 owner-managers of Sri Lankan companies by administering a mailed paper questionnaire. Company performance was measured by the ratings of sales performance on the part of managers concerned. Correlation and regression analysis were then performed in the impact analysis. Our findings indicate that the leadership orientation of owner-managers of small firms is more entrepreneurial than managerial. Also, entrepreneurial orientation (EO) correlated more significantly with …


Feed-Back Effects Of Intra-Trade Between Gcc Countries, Kaul Nandini, Mokhtar Metwally, Nelson Perera Feb 2013

Feed-Back Effects Of Intra-Trade Between Gcc Countries, Kaul Nandini, Mokhtar Metwally, Nelson Perera

Nelson Perera

No abstract provided.


Structural Contributions Of Antipsychotic Drugs To Their Therapeutic Profiles And Metabolic Side Effects, Somayeh Jafari, Francesca Fernandez-Enright, Xu-Feng Huang Feb 2013

Structural Contributions Of Antipsychotic Drugs To Their Therapeutic Profiles And Metabolic Side Effects, Somayeh Jafari, Francesca Fernandez-Enright, Xu-Feng Huang

Xu-Feng Huang

Antipsychotic drugs have various neuropharmacological properties as a result of their structural diversity. Despite their therapeutic benefits, most of the prescribed atypical antipsychotics can induce severe side effects, including weight gain, type II diabetes mellitus, and cardiovascular diseases. Among the developed atypical antipsychotic agents, tetracyclic dibenzodiazepine and thienobenzodiazepine compounds, particularly clozapine and olanzapine, are associated with the greatest weight gain and metabolic disturbances. However, the unique chemical structure of these compounds causes the low risk of side effects reported for typical antipsychotics (e.g. extrapyramidal symptoms and tardive dyskinesia). This report reviews the recent discovery of the potential role of the …


Effects Of Atmospheric Light Scattering On Spectroscopic Observations Of Greenhouse Gases From Space. Part 2: Algorithm Intercomparison In The Gosat Data Processing For Co2 Retrievals Over Tccon Sites, Sergey Oshchepkov, Andrey Bril, Tatsuya Yokota, Paul O. Wennberg, Nicholas M. Deutscher, Debra Wunch, Geoffrey C. Toon, Yukio Yoshida, Christopher W. O'Dell, David Crisp, Charles E. Miller, Christian Frankenberg, Andre Butz, Ilse Aben, Sandrine Guerlet, Otto Hasekamp, Hartmut Boesch, Austin Cogan, Robert Parker, David Griffith, Ronald Macatangay, Justus Notholt, Ralf Sussmann, Markus Rettinger, Vanessa Sherlock, John Robinson, Esko Kyro, Pauli Heikkinen, Dietrich G. Feist, Isamu Morino, Nikolay Kadygrov, Dmitry Belikov, Shamil Maksyutov, Tsuneo Matsunaga, Osamu Uchino, Hiroshi Watanabe Feb 2013

Effects Of Atmospheric Light Scattering On Spectroscopic Observations Of Greenhouse Gases From Space. Part 2: Algorithm Intercomparison In The Gosat Data Processing For Co2 Retrievals Over Tccon Sites, Sergey Oshchepkov, Andrey Bril, Tatsuya Yokota, Paul O. Wennberg, Nicholas M. Deutscher, Debra Wunch, Geoffrey C. Toon, Yukio Yoshida, Christopher W. O'Dell, David Crisp, Charles E. Miller, Christian Frankenberg, Andre Butz, Ilse Aben, Sandrine Guerlet, Otto Hasekamp, Hartmut Boesch, Austin Cogan, Robert Parker, David Griffith, Ronald Macatangay, Justus Notholt, Ralf Sussmann, Markus Rettinger, Vanessa Sherlock, John Robinson, Esko Kyro, Pauli Heikkinen, Dietrich G. Feist, Isamu Morino, Nikolay Kadygrov, Dmitry Belikov, Shamil Maksyutov, Tsuneo Matsunaga, Osamu Uchino, Hiroshi Watanabe

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

This report is the second in a series of companion papers describing the effects of atmospheric light scattering in observations of atmospheric carbon dioxide (CO2) by the Greenhouse gases Observing SATellite (GOSAT), in orbit since 23 January 2009. Here we summarize the retrievals from six previously published algorithms; retrieving column-averaged dry air mole fractions of CO2 (XCO2) during 22 months of operation of GOSAT from June 2009. First, we compare data products from each algorithm with ground-based remote sensing observations by Total Carbon Column Observing Network (TCCON). Our GOSAT-TCCON coincidence criteria select satellite observations within a 5° radius of 11 …


Effects Of Ice Hockey Facial Protectors On The Response Time And Kinematics In Goal-Directed Tasks, P M. Dowler, D J. Pearsall, P J. Stapley Jan 2013

Effects Of Ice Hockey Facial Protectors On The Response Time And Kinematics In Goal-Directed Tasks, P M. Dowler, D J. Pearsall, P J. Stapley

Dr Paul J Stapley

Ice hockey facial protectors are essential to prevent eye (and, in some cases, dental) injuries but must also not encumber vision and, in turn, playersapos; performance. The purpose of this study was to investigate the effects of three different facial protection conditions on temporal and kinematic parameters in a goal-directed pointing task: helmet (control), visor, and cage. Start and end target switches captured temporal estimates (reaction time (RT), movement time, (MT), and response time (RT+MT)), while a 13-light target array and 6-camera Vicon Mx system were used to collect upper-body kinematics data (head and thorax orientation, shoulder and elbow joint …


The Effects Of Inhibitory Control Training On Alcohol Consumption, Implicit Alcohol-Related Cognitions And Brain Electrical Activity, Claire Bowley, Cameron Faricy, Bronwyn Hegarty, Stuart J. Johnstone, Janette L. Smith, Peter J. Kelly, Jacqueline A. Rushby Jan 2013

The Effects Of Inhibitory Control Training On Alcohol Consumption, Implicit Alcohol-Related Cognitions And Brain Electrical Activity, Claire Bowley, Cameron Faricy, Bronwyn Hegarty, Stuart J. Johnstone, Janette L. Smith, Peter J. Kelly, Jacqueline A. Rushby

Faculty of Social Sciences - Papers (Archive)

This study aimed to replicate findings that alcohol consumption and positive implicit beer-related cognitions can be reduced using inhibitory control (IC) training, with the addition of an active training control. Frontal EEG asymmetry, an objective psychophysiological index of approach motivation, was used as a dependent measure to examine training outcomes. Participants were randomly assigned to one of two IC training conditions (Beer NoGo or Beer Go) or a Brief Alcohol Intervention (BAI) (i.e. the active training control). The IC training tasks consistently paired a stimulus that required a response with images of water (Beer NoGo) or images of beer (Beer …


Can Working Memory Predict Target-To-Target Interval Effects In The P300?, Genevieve Z. Steiner, Robert J. Barry, Craig J. Gonsalvez Jan 2013

Can Working Memory Predict Target-To-Target Interval Effects In The P300?, Genevieve Z. Steiner, Robert J. Barry, Craig J. Gonsalvez

Faculty of Social Sciences - Papers (Archive)

It has been suggested that the P300 component of the ERP is an electrophysiological index of memory-updating processes associated with task-relevant stimuli. Component magnitude varies with the time separating target stimuli (target-to-target interval: TTI), with longer TTIs eliciting larger P300 amplitudes. According to the template-update perspective, TTI effects observable in the P300 reflect the updating of stimulus-templates in working memory (WM). The current study explored whether young adults' memory-task ability could predict TTI effects in P300. EEG activity was recorded from 50 university students (aged 18–25 years) while they completed an auditory equiprobable Go/NoGo task with manipulations of TTIs. Participants …


A Randomised Placebo-Controlled Trial To Differentiate The Acute Cognitive And Mood Effects Of Chlorogenic Acid From Decaffeinated Coffee, David A. Camfield, Beata Y. Silber, Andrew B. Scholey, Karen Nolidin, Antionette Goh, Con Stough Jan 2013

A Randomised Placebo-Controlled Trial To Differentiate The Acute Cognitive And Mood Effects Of Chlorogenic Acid From Decaffeinated Coffee, David A. Camfield, Beata Y. Silber, Andrew B. Scholey, Karen Nolidin, Antionette Goh, Con Stough

Faculty of Social Sciences - Papers (Archive)

In the current study, sixty healthy older adults aged 50 years or older, and who were light to moderate coffee drinkers, were administered 6g of a decaffeinated green coffee blend (NESCAFÉ Green Blend coffee; GB) or 540mg pure chlorogenic acids (CGA) or placebo in a double-blind acute cross-over design, with cognitive and mood assessments pre-dose, 40-mins and 120-mins post-dose. The primary outcome measure was accuracy in Rapid Visual Information Processing (RVIP). Secondary cognitive outcome measures included RVIP reaction time as well as Inspection time (IT), Jensen Box decision/reaction times, serial subtraction and N-Back working memory. Secondary mood measures included Bond-Lader …


Acute Effects Of Different Multivitamin Mineral Preparations With And Without Guaraná On Mood, Cognitive Performance And Functional Brain Activation, Andrew Scholey, Isabelle Bauer, Chris Neale, Karen Savage, David Camfield, David White, Silvia Maggini, Andrew Pipingas, Con Stough, Matthew Hughes Jan 2013

Acute Effects Of Different Multivitamin Mineral Preparations With And Without Guaraná On Mood, Cognitive Performance And Functional Brain Activation, Andrew Scholey, Isabelle Bauer, Chris Neale, Karen Savage, David Camfield, David White, Silvia Maggini, Andrew Pipingas, Con Stough, Matthew Hughes

Faculty of Social Sciences - Papers (Archive)

Previous work has identified the positive effects of the acute administration of a multivitamin-guaraná preparation during an effortful executive/working memory task. Here, we aimed to differentiate the effects of multivitamins with and without guaraná and to examine the neural substrates of such effects using functional magnetic resonance imaging (fMRI). Following a double-blind, placebo-controlled, randomised, balanced crossover design, 20 participants (mean age 29 ± 5.54 years) consumed multivitamin preparations with or without guaraná (Berocca® Performance and Boost, respectively) and a placebo. Thirty minutes post-treatment, they underwent neurocognitive assessment, consisting of a 10 min Cognitive Demand Battery, with mood ratings taken immediately …


The Effects Of Multivitamin Supplementation On Diurnal Cortisol Secretion And Perceived Stress, David A. Camfield, Mark A. Wetherell, Andrew B. Scholey, Katherine H. M Cox, Erin Fogg, David J. White, Jerome Sarris, Marni Kras, Con Stough, Avni Sali, Andrew Pipingas Jan 2013

The Effects Of Multivitamin Supplementation On Diurnal Cortisol Secretion And Perceived Stress, David A. Camfield, Mark A. Wetherell, Andrew B. Scholey, Katherine H. M Cox, Erin Fogg, David J. White, Jerome Sarris, Marni Kras, Con Stough, Avni Sali, Andrew Pipingas

Faculty of Social Sciences - Papers (Archive)

Recent evidence suggests that dietary intake of vitamins, in particular the B-vitamins including B6, B9 and B12 may have a number of positive effects on mood and stress. Given the effects of stress on a range of biological mechanisms including the endocrine system, it could be reasonably expected that multivitamin supplementation may also affect markers of these mechanisms such as diurnal cortisol secretion. In the current double-blind placebo-controlled study 138 adults (aged 20 to 50 years) were administered a multivitamin containing B-vitamins versus placebo over a 16-week period. Salivary cortisol measurements were taken at waking, 15-min, 30-min and at bedtime, …