Social and Behavioral Sciences Commons^™

Gesturing During Mental Problem Solving Reduces Eye Movements, Especially For Individuals With Lower Visual Working Memory Capacity, Wim T. Pouw, Myrto F. Mavilidi, Tamara Van Gog, Fred Paas

Faculty of Social Sciences - Papers (Archive)

Non-communicative hand gestures have been found to benefit problem-solving performance. These gestures seem to compensate for limited internal cognitive capacities, such as visual working memory capacity. Yet, it is not clear how gestures might perform this cognitive function. One hypothesis is that gesturing is a means to spatially index mental simulations, thereby reducing the need for visually projecting the mental simulation onto the visual presentation of the task. If that hypothesis is correct, less eye movements should be made when participants gesture during problem solving than when they do not gesture. We therefore used mobile eye tracking to investigate the …

Exploring Australian Women's Level Of Nutrition Knowledge During Pregnancy: A Cross-Sectional Study, Khlood Bookari, Heather Yeatman, Moira J. Williamson

Faculty of Social Sciences - Papers (Archive)

Background: The Australian Guide to Healthy Eating (AGHE) for pregnancy provides a number of food- and nutrition-related recommendations to assist pregnant women in optimizing their dietary behavior. However, there are limited data demonstrating pregnant women’s knowledge of the AGHE recommendations. This study investigated Australian pregnant women’s knowledge of the AGHE and related dietary recommendations for maintaining a healthy pregnancy. The variations in nutrition knowledge were compared with demographic characteristics. Methods: A cross-sectional study assessed eight different nutrition knowledge domains and the demographic characteristics of pregnant women. Four hundred women across Australia completed a multidimensional online survey based on validated and …

Physical Activity Patterns During Pregnancy In A Sample Of Portuguese Women: A Longitudinal Prospective Study, Paula Clara-Santos, Sandra Abreu, Carla Moreira, Rute Santos, Margarida Ferreira, Odete Alves, Pedro Moreira, Jorge Mota

Faculty of Social Sciences - Papers (Archive)

Background: Physical activity (PA) patterns during pregnancy have not been explored in depth and most previous studies lack assessment of variables such as type, frequency, duration and intensity of activity. Objectives: This study had two goals: 1) to analyze PA patterns during pregnancy according to weekly time spent on different types of activity; and 2) to determine women's perception about health care providers regarding PA advisement during pregnancy. Patients and Methods: A longitudinal prospective study was carried out with a 118-pregnant women cohort. Participants were evaluated during all trimesters. Self-reported questionnaires were used to collect personal and obstetric data. Type, …

Mineral Phase Formation And Zinc Removal During Sintering Of Filter Cake Wastes, Zhe Wang, David J. Pinson, Sheng Chew, Brian J. Monaghan, Harold P. Rogers, Guangqing Zhang

Faculty of Engineering and Information Sciences - Papers: Part A

A large amount of filter cake wastes are produced from the gas cleaning systems of blast furnace (BF) ironmaking and basic oxygen furnace (BOF) steelmaking processes. The filter cake wastes cannot be directly recycled through the ironmaking process due to the high zinc contents and are therefore, predominantly, stockpiled. The storage of filter cake wastes presents a long- Term environmental issue but also an opportunity to extract or recover the iron content, motivating a search for processes or technologies to allow their cost-effective recycling. In this study, two filter cake wastes from BlueScope Ltd. were sintered at 1 100-1 300°C …

Microstructure And Micro-Texture Evolution During The Dynamic Recrystallisation Of A Ni-30fe-Nb-C Model Alloy, Parvez Mannan, Ahmed A. Saleh, Azdiar A. Gazder, Gilberto Casillas, Elena V. Pereloma

Faculty of Engineering and Information Sciences - Papers: Part A

The evolution of microstructure and micro-texture during discontinuous dynamic recrystallisation of an austenitic Ni-30Fe-Nb-C model alloy subjected to interrupted plane strain compression at strains (ε) of 0.23, 0.35, 0.68, 0.85 and 1.2 was investigated using electron backscattering diffraction and transmission electron microscopy. Throughout the strain range, the majority of dynamic recrystallisation events comprised nucleation in necklace-like arrangements located at and along grain boundaries via bulging. At ε ≥ 0.68, discrete nucleation events were also observed within grain interiors. Grain growth during dynamic recrystallisation is characteristic of strain induced boundary migration. The initial texture comprised Cube-RD ({013}〈100〉), Cube-ND ({001}〈310〉) and Cube …

On The Feasibility Of Partial Slip Reversal And De-Twinning During The Cyclic Loading Of Twip Steel, Ahmed A. Saleh, Bjorn Clausen, Donald W. Brown, Elena V. Pereloma, Christopher H. J Davies, Carlos N. Tome, Azdiar A. Gazder

Faculty of Engineering and Information Sciences - Papers: Part A

A recently modified Elasto-Plastic Self-Consistent (EPSC) model which empirically accounts for both intergranular and intragranular back stresses has been successfully used to simulate the cyclic (tension-compression) loading behaviour of an Fe-24Mn-3Al-2Si-1Ni-0.06C TWinning Induced Plasticity (TWIP) steel between strain limits of ±1%. Lattice strain measurements acquired via in-situ neutron diffraction were used to further validate the modelling results. An improved prediction of the pronounced Bauschinger effect during unloading is achieved when the reversibility of partial slip in the 〈112〉 direction is accounted for. This result indicates a potential contribution of the stress-induced separation of partial dislocations to the observed early yielding …

Experimental And Numerical Study On The Effect Of Zddp Films On Sticking During Hot Rolling Of Ferritic Stainless Steel Strip, Liang Hao, Zhengyi Jiang, Dongbin Wei, Dianyao Gong, Xiawei Cheng, Jingwei Zhao, Suzhen Luo, Laizhu Jiang

Faculty of Engineering and Information Sciences - Papers: Part A

The aim of this study is to investigate the effect of zinc dialkyl dithio phosphate (ZDDP) films on sticking during hot rolling of a ferritic stainless steel strip. The surface characterization and crack propagation of the oxide scale are very important for understanding the mechanism of the sticking. The high-temperature oxidation of one typical ferritic stainless was conducted at 1373 K (1100 °C) for understanding its microstructure and surface morphology. Hot-rolling tests of a ferritic stainless steel strip show that no obvious cracks among the oxide scale were observed with the application of ZDDP. A finite element method model was …

Response Of Rigid Piles During Passive Dragging, Wei Dong Guo

Faculty of Engineering and Information Sciences - Papers: Part A

This paper develops a three-layer model and elastic solutions to capture nonlinear response of rigid, passive piles in sliding soil. Elastic solutions are obtained for an equivalent force per unit length p_s of the soil movement. They are repeated for a series of linearly increasing p_s (with depth) to yield the nonlinear response. The parameters underpinning the model are determined against pertinent numerical solutions and model tests on passive free-head and capped piles. The solutions are presented in non-dimensional charts and elaborated through three examples. The study reveals the following:

• On-pile pressure in rotationally restrained, sliding layer reduces …

Lubrication Characterisation Analysis Of Stainless Steel Foil During Micro Rolling, Haibo Xie, Kenichi Manabe, Tsuyoshi Furushima, Kazuo Tada, Zhengyi Jiang

Faculty of Engineering and Information Sciences - Papers: Part A

Physical parameters, such as microscopic and roughness, play important roles in microforming process due to an increasing ratio of surface to volume of the deformed material. The study on lubrication characterisation in microforming is getting more attractive to researchers because traditional models are not reliable in this scaled down process. In this study, the micro rolling deformation characterisation has been investigated on SUS 304 stainless steel considering lubricant effect and feature size effect. The foil thickness plays an important role in the tribological features of micro rolling. The evolutions of both oil film thickness and foil surface are analysed accordingly. …

Confusions And Conundrums During Final Practicum: A Study Of Preservice Teachers' Knowledge Of Challenging Behaviour, Samantha Mcmahon, Valerie Harwood

Faculty of Social Sciences - Papers (Archive)

This chapter describes the psy-knowledges central to preservice teachers' understandings of challenging behaviour. Particularly, it pays attention to the unexpectedly dangerous questions generated when working towards a practical and integrated understanding of how biological, psychological, and ecological factors interact. This chapter deploys Foucauldian discourse analysis to problematize the preservice teachers' shifting and changeable awareness of these causal attributions of behaviour and how this impacts their pedagogy.

Australian Midwives And Provision Of Nutrition Education During Pregnancy: A Cross Sectional Survey Of Nutrition Knowledge, Attitudes, And Confidence, Jamila Arrish, Heather Yeatman, Moira J. Williamson

Faculty of Social Sciences - Papers (Archive)

Background: Maternal nutrition during pregnancy affects the health of the mother and the baby. Midwives are ideally placed to provide nutrition education to pregnant women. There is limited published research evidence of Australian midwives' nutrition knowledge, attitudes and confidence. Aim: To investigate Australian midwives' nutrition knowledge, attitudes and confidence in providing nutrition education during pregnancy. Methods: Members of the Australian College of Midwives (n = 4770) were sent an invitation email to participate in a web-based survey, followed by two reminders. Findings: The completion rate was 6.9% (329 of 4770). The majority (86.6% and 75.7%, respectively) highly rated the importance …

Into The Firing Line: Civilian Ingress During The 2013 "Red October" Bushfires, Australia, Carrie Wilkinson, Christine Eriksen, Trent D. Penman

Faculty of Social Sciences - Papers (Archive)

A major issue for bushfire management arises when residents decide to leave a safe area and enter the fire zone to rescue or defend their property, pets, loved ones or other assets. Here, we use statistical and narrative analyses of data from an online survey and semi-structured interviews with residents affected by the 2013 "Red October" bushfires in New South Wales, Australia. The survey results revealed that of the 58 % of respondents who were not at home at the time the threat became apparent, 65 % indicated that they attempted to get home prior to the arrival of the …

Identity Formation Of Lbote Preservice Teachers During The Practicum: A Case Study In Australia In An Urban High School, Hoa Thi Mai Nguyen, Lynn D. Sheridan

Faculty of Social Sciences - Papers (Archive)

The article presents a case study of a growing number of English language background other than English (LBOTE) students in teacher education in Australia. Topics discussed include the impact of teaching practice in the identity formation of preservice teachers, the work experience of teachers in Australian schools, and the teacher identity.

Effects Of Sintering Materials And Gas Conditions On Formation Of Silico-Ferrites Of Calcium And Aluminium During Iron Ore Sintering, Zhe Wang, David J. Pinson, Sheng Chew, Brian J. Monaghan, Mark Pownceby, Nathan A.S. Webster, Harold P. Rogers, Guangqing Zhang

Faculty of Engineering and Information Sciences - Papers: Part A

Silico-ferrites of calcium and aluminium (SFCA) are desirable phases in a high quality iron ore sinter product. The effects of sintering temperature, CaO/SiO2 ratio, sintering gas atmosphere and cooling procedure on the phase composition of sintered specimens from an industrial sinter blend were examined with focus on the formation of SFCA phases. The proportions of mineral phases in specimens sintered at 1 250-1 325°C were quantitatively examined using image analysis. SFCA can be formed at low temperatures by solid state reactions, the formation of which was enhanced by increasing temperature. Further increasing sintering temperature promoted the reduction of Fe3+ in …

Correcting Intensity Loss Errors In The Absence Of Texture-Free Reference Samples During Pole Figure Measurement, Ahmed A. Saleh, Quoc Viet Vu, Azdiar A. Gazder

Faculty of Engineering and Information Sciences - Papers: Part A

Even with the use of X-ray polycapillary lenses, sample tilting during pole figure measurement results in a decrease in the recorded X-ray intensity. The magnitude of this error is affected by the sample size and/or the finite detector size. These errors can be typically corrected by measuring the intensity loss as a function of the tilt angle using a texture-free reference sample (ideally made of the same alloy as the investigated material). Since texture-free reference samples are not readily available for all alloys, the present study employs an empirical procedure to estimate the correction curve for a particular experimental configuration. …