Edith Cowan University

About: Edith Cowan University is a education organization based out in Perth, Western Australia, Australia. It is known for research contribution in the topics: Population & Tourism. The organization has 4040 authors who have published 13529 publications receiving 339582 citations. The organization is also known as: Edith Cowan & ECU.

Processing and properties of topologically optimised biomedical Ti-24Nb-4Zr-8Sn scaffolds manufactured by selective laser melting

Abstract: This study investigated the effect of the processing parameters on the quality and mechanical properties of a biomedical titanium alloy (Ti–24Nb–4Zr–8Sn) scaffolds fabricated by selective laser melting. Optimal manufacturing parameters were then determined through analysing the pores distribution, geometrical accuracy and the mechanical properties of the produced components. The evaporation of tin during the process is thought to be the main cause of pore generation at higher incident energy densities. Using the optimal processing conditions, the strength of the scaffold reached 51 MPa at a scaffold density of 3 and a high solid strut relative density of ~99.3%. Fracture surface analysis found that the main reason for strut early failure was the weaknesses of struts caused by the presence of pores as well the thickness of strut and internal unmelted powders. **Co-corresponding author.

Using online technologies to support problem based learning: Learners' responses and perceptions

Abstract: This paper reports a study in which a form of online problem based learning was employed with a group of on campus students in an undergraduate university course. The paper explores the practical issues associated with teaching and learning in this fashion and describes the responses and perceptions of the learners. In the main, the students responded very positively to the changed learning environment despite the fact that it caused them to spend more time in these courses doing different things to which they were accustomed. In particular the students' perceived that the various problem based activities contributed substantially to their learning and enjoyment in the course. The results do, however, suggest some caution is necessary in the use of this approach. While the environment seems readily transferable to flexible and open learning settings, the students frequently indicated that they valued the input of the teacher and saw this component as a valuable part of teaching and learning. The results suggest the need to remember the important place of the teacher in any learning process and the need to ensure students have adequate access to, and lines of, communication with their teachers.

A review on recent advancement of electromagnetic interference shielding novel metallic materials and processes

Abstract: The demand for new materials in the field of electromagnetic interference shielding has increased dramatically in the last few decades due to the advancements in the electronics industry. To meet these growing demands, many new materials are being investigated to replace traditionally used metal sheets. Some of the promising materials being researched are polymer-based composites due to their low specific weight, ease of fabrication, and low cost. Some researchers have also looked into the modification and synthetization of new metal-based shielding materials. One of the significant disadvantages of modifying metallic materials is the reduction of their electrical conductivity that adversely affects the shielding effectiveness. Hence, the modifications carried out should be able to maintain the shielding effectiveness at high values while eliminating the shortcomings of metal sheets. In this review article, novel metal-based materials are analyzed for their shielding effectiveness. While some of the materials reviewed in this paper are merely metal-based composites, others consist of more complex additives including metal oxides and carbides. Apart from the shielding effectiveness, this article analyses the variation of other important properties such as electrical conductivity and mechanical properties for a few of these materials.

Palliative care for families: remembering the hidden patients.

Abstract: Families of patients receiving palliative care are profoundly affected by the challenges of the illness. They observe care that the patient receives, provide care for the patient, and receive support from health professionals in the form of information, counselling, or practical assistance. As they witness and participate in the patient's care, they judge the quality of care that the patient receives. They often see themselves as the patient's care advocates and may harbour regret and guilt if they believe that the patient did not have the best possible care. The illness experience profoundly affects family members' psychological and physical health; recognition of this has coined the term "hidden patients." This article briefly synthesizes empirical work that suggests how to best support families in a palliative care context. We discuss how to define the family, emphasizing a systems approach to family care. We describe the impact of the illness on the family in terms of family members' health, family communication issues, psychological issues, needs for information, physical care demands, and family costs of caring.