Major factors affecting waste generation on construction sites in Iran

Construction and demolition (C&D) waste account for a large share of total solid waste sent to the environment. As a result, effective C&D waste management has been treated as one of the available avenues towards sustainable development. Yet, C&D waste management within the Iranian construction industry has been literally overlooked by investigators. As one of the first studies in Iran, the main causes of generating C&D waste on construction projects have been identified through a review of literature. Afterwards, the list has been subjected to the scrutiny of 101 experts in the field deploying a questionnaire survey. The findings revealed that important causes of C&D waste generation on construction sites were all associated with lack of skills and experience of construction workers and lack of awareness of the concept of waste and values of construction materials. No discrepancy in terms of causes of waste generation was observed among different tiers of construction companies in the Iranian construction industry. The paper concludes with providing a number of guidelines to address the issues as identified for Iran and other developing countries suffering from the same problems.

Moving towards a model of professional identity formation in midwifery through conversations and positioning theory

The disciplines of nursing and midwifery both uphold a powerful oral tradition that can impact upon student learning. Students enrolled in a Graduate Diploma of Midwifery are supervised and assessed by midwives during their placements in midwifery practice settings by a program of 'preceptorship' support and where conversations are innate. Positioning theory, eveloped by Harre and others, is a metaphorical concept in which an individual 'positions' herself/himself within entities of encompassing people, institutions and societies where conversations are conducted either privately or publicly. As construction sites of professional learning, conversations are underpinned by reflective practices.In unravelling conversations, positioning may be applied as an analytical tool by educators to interpret the emerging meanings and themes in their discussions with students, reflective journals by students and in meetings with preceptors/midwives.

Strategic design guidance on tall buildings in the Arab region

Globally, there has been enhanced media -and public interest in tall buildings following the terrorist attacks on the World Trade Centre in New York. In the Arab region, tall buildings have also become an important topic of debate. The Middle East is set to grow significantly over the next two decades. Soaring population and jobs growth will increase demands for the better use of residential and commercial office space. This is a vital issue for the growth in the economy of the region. The number of construction sites for tall buildings in the Arab world is staggering when compared to European developments. A statistical review of tall buildings has shown for example that the United Arab Emirates (UAE) by the year 2010 will outnumber UK and Germany together in the number of 30+ floors buildings by reaching (446 UAE) compared to [243 UK(130) + Germany(113)]. Today high buildings are considered flagship developments not only in the Arab World but also worldwide that play an important part in regeneration. Tall buildings are likely to continue to be relevant to the master planning of areas with good public transport access and capacity. A successful tall building must adhere to a set of clear urban design guidelines that affect the following areas: edges, use, public space, urban integration and environmental factors. This paper addresses this issue. The challenge for architects, urban designers, and planners in the Arab world is to provide the right type and quality of new space and new place that won't undermine the question of identity. The paper explores the nature of tall buildings in the Arab region and provides examples of the positive and negative transformation of the urban environments in a number of locales. The paper concludes by drawing some guidelines for future development of tall buildings in the Arab World.

Securing the oral tradition : reflective positioning and professional conversations in midwifery education

We postulate that positioning is a powerful tool in guiding and transforming student professional learning and practice development. In our experiences with students enrolled in he Graduate Diploma of Midwifery, we determined that positioning elaborates individual scholarship and identity formation of the learner midwife in practice settings. Positioning Theory, developed by Harré and other authorities, is a psycho-sociological 'ontology' or concept of how individuals metaphorically position or locate themselves, and others, within institutions and societies. Three key components of positioning theory include 'position', 'speech act' and 'storylines', developing from the everyday social interactions of professional conversations. Reflective positioning can be applied as an analytical tool for the moment-to- moment exchanges inherent in practice related conversations, occurring between midwives and midwifery students. These moment-to-moment interactions of professional conversations can be used by students to complete or fill their learning gaps. Positioning therefore, provides a novel, contemporary theoretical framework to 'unpack' or understand the complexity of midwifery practice and yet is complementary with reflective practice. Excerpts are used to demonstrate reflective positioning applications by students. Midwives are encouraged by health services and by the University to provide student support through a 'preceptorship' program to supervise, work with and assess students for competence in midwifery practices. We claim that reflective positioning by students within professional conversations with their preceptor/midwives, are the construction sites for learning and where identity formation of each student as a future midwife is both shaped and transformed. Both academics and managers of health services need to embrace the value of workplace conversations, the sites of rich oral traditions of nursing and midwifery. Thus, in seeking claim to our rich oral traditions, all students will benefit from engagement in reflective positioning to promote their professional learning and practice development.

Incentive or deterrent: which encourages greater focus on health and safety in the Victorian construction industry?

The Australian Government commissioned a Royal Commission into the building industry in Australia that reported to Parliament in August 2002. Volume 6 of this report, released in February 2003, discussed certain aspects in occupational health and safety in Australia and leaned toward deterrents as a means of achieving reform. This research defines both incentives and deterrents used to increase awareness of, and improve safety on, building sites in Victoria, a state of Australia. A pilot survey questionnaire was developed following a literature review and industry employer representatives were invited to participate. Industry awareness of Government incentive programmes was found to be low, with less than a quarter stating they read Government strategies. One fund that provides actual research monies into health and safety was known to very few of the respondents. Of the employers surveyed, the majority agreed that financial fines do act as a valid deterrent. Increases in worker compensation premiums were seen as the greatest deterrent due to the effect on company overheads and thus competitive tendering bids. Deterrent programmes were more readily acknowledged by employers as they had an element of self promotion with employers attempting to avoid their application.

Sexual sites, seminal attitudes : sexualities, masculinities, and culture in South Asia

This book situates current research into the sexual cultures of South Asia within a cross-cultural perspective. The book argues that in societies undergoing rapid social and cultural change, the construction of sexuality and the discourses that gather around it have a fundamental connection with an entire range of processes - social, cultural, economic, political and global - with which people must engage. The contributors have studied sexuality as a site around which social and cultural ideas may be expressed.

LAN cafes: cafes, places of gathering or sites of informal teaching and learning?

Despite the interest of sociologists and educational researchers in Internet café as sites for new cultural and social formations and informal learning, thus far little attention has been paid to the function of café owners, managers and other staff in the mediation and co-construction of those spaces. Drawing from interviews with managers of commercial Internet café in Australia specialising in LAN (Local Area Network) gaming, this article seeks to examine their role and their attitudes more closely; in particular with regard to school-aged users of their facilities. We contend that LAN café are liminal spaces situated at the margins of Australian culture and located at the junctions between home, school and the street, online and offline spaces, work and play. The roles of LAN café managers are similarly ambiguous: in many ways they can be regarded as informal teachers facilitating the process of informal learning.

Towards the development of a conceptual design management model for remote sites

Remote and environmentally sensitive sites present unique challenges for participants involved in the design and construction process. Worldwide advances in information technology coupled with improved site accessibility and manageability has enabled the construction industry to undertake such projects with greater ease. Furthermore, research on information technology in construction has begun to focus our attentions on our increased ability to work virtually in distributed teams. These remote sites have a range of development potential as clients have varied interests including; tourism, scientific investigation and resource exploration and processing which impact upon the management of the design process. These sites pose unique challenges to the project teams and in particular for the management of project design. The conceptual design phase is often marked by an iterative and creative process, which tends to be a sociologically oriented world where designers respond to a range of functional, aesthetic, environmental and even spiritual concerns. Strategic decisions made during the briefing and conceptual design stage may impact upon construction logistics and sustainability. Detailed design for construction tends to be a production oriented world. There is a significant body of literature that addresses the application of lean thinking to improving the interface between detailed design and construction production. There is little literature that takes a holistic view of design management for remote sites. The lean design management field of research has much to contribute to the design management of these projects. The review of the literature indicated that much of the lean thinking has been primarily concerned with sequential production. However, lean thinking is based upon principles of flow and value, which is also conducive to the complex process involved in design management for remote sites. A conceptual model is developed that considers both the production and sociological approaches to design management, in response to the peculiar demands of the site and their project teams.

The development of a typology for remote construction projects

Remotely located sites have become more accessible and therefore more valuable and profitable to investors and entrepreneurs. Typically these sites are environmentally sensitive. For the designer, these sites offer a unique challenge conceptually, in terms of the physical and cultural constraints. The built environment research community has yet to seriously take up the challenge of developing theoretical models for the management of the design and construction processes for remotely located projects. Such models would explore efficiency and efficacy management for projects in remote and often hostile areas, in an integrated and sustainable manner. There are varying degrees of remoteness experienced in nearly all construction projects and therefore a clearer definition of the characteristics of remote sites is required. Towards this definition, a typology is initiated for the concept of remotely located construction projects related to environmental sustainability and the management of the design process. The characteristics of the typology are drawn from a selected literature review of the fields of design management and environmental sustainability, and from an exploratory investigation of two case studies.

Community school teacher education and the construction of pedagogical discourse in Papua New Guinea

Pedagogical discourse in Papua New Guinea (PNG) community schooling is mediated by a western styles education. The daily administration and organisation of school activity, graded teaching and learning, subject selection, content boundaries, teaching and assessment methods are all patterned after western schooling. This educational settlement is part of a legacy of German, British and Australian government and non-government colonialism that officially came to an end in 1975. Given the colonial heritage of schooling in PNG, this study is interested in exploring particular aspects of the degree of mutuality between local discourses and the discourses of a western styled pedagogy in post-colonial times, for the purpose of better informing community school teacher education practices. This research takes place at and in the vicinity of Madang Teachers College, a pre-service community school teachers college on the north coast of Papua New Guinea. The research was carried out in the context of the researcher’s employment as a contract lecturer in the English language Department between 1991-1993. As an in-situ study it was influenced by the roles of different participants and the circumstances in which data was gathered and constituted, data which was compatible with participants commitments to community school teacher education and community school teaching and learning. In the exploration of specific pedagogic practices different qualitative research approaches and perspectives were brought to bear in ways best suited to the circumstances of the practice. In this way analytical foci were more dictated by circumstances rather by design. The analytical approach is both a hermeneutic one where participants’ activities are ‘read like texts’, where what is said or written is interpreted against the background of other informing contexts and texts, to better understand how understandings and meanings are produced and circulated; and also a phenomenological one where participants’ perspectives are sought to better understand how pedagogical discursive formations are assimilated with the ‘self’. The effect of shifting between these approaches throughout the study is to build up a sense of co-authorship between researcher and participants in relation to particular aspects of the research. The research explores particular sites where pedagogic discourse is produced, re-produced, distributed, articulated, consumed and contested, and in doing so seeks to better understand what counts as pedagogical discourse. These are sites that are largely unexplored in these terms, in the academic literature on teacher education and community schooling in PNG. As such, they represent gaps in what is documented and understood about the nature of post-colonial pedagogy and teacher training. The first site is a grade two community school class involved in the teaching and early learning of English as the ‘official’ language of instruction. Here local discourses of solidarity and agreement are seen to be mobilised to make meaningful, what are for the teacher and children moments in their construction as post-colonial subjects. What in instructional terms may be seen as an English language lesson becomes, in the light of the research perspectives used, an exercise in the structuring of new social identities, relations and knowings, problematising autonomous views of teaching and learning. The second site explores this issue of autonomous (decontextualised) teaching and learning through an investigation of student teachers’ epistemological contextualisations of knowledge, teaching and learning. What is examined is the way such orientations are constructed in terms of ‘traditional’ and ‘modern’ epistemological and pedagogical alignments, and, in terms of differently conceived notions of community, in a problematisation of the notion of community schooling. The third and fourth sites examine reflective accounts of student teachers’ pedagogic practices, understandings and subjectivities as they confront the moral and political economies and cultural politics of schooling in School Experiences and Practicum contexts, and show how dominant behaviourist and ‘rational/autonomous’ conceptions of what counts as teaching and learning are problematised in the way some students teachers draw upon wider social discourses to construct a dialogue with learners. The final site is a return to the community school where the discourse of school reports through which teachers, children and parents are constructed as particular subjects of schooling, are explored. Here teachers report children’s progress over a four year period and parents write back in conforming, confronting and contesting ways, in the midst of the ongoing enculturation of their children. In this milieu, schooling is shown to be a provider of differentiated social qualifications rather than a socially just and relevant education. Each of the above-mentioned studies form part of a research and pedagogic interest in understanding the ‘disciplining’ effects of schooling upon teacher education, the particular consequences of those effects, what is embraces, resisted and hidden. Each of the above sites is informed by various ‘intertexts’. The use of intertexts is designed to provide a multiplicity of views, actions and voices while enhancing the process of cross-cultural reading through contextualising the studies in ways that reveal knowledges and practices which are often excluded in more conventional accounts of teaching and learning. This research represents a journey, but not an aimless one. It is one which reads the ideological messages of coherence, impartiality and moral soundness of western pedagogical discourse against the school experiences of student-teachers, teachers, children and parents, in post-colonial Papua New Guinea, and finds them lacking.

The value of experiential learning for providing a contextual understanding of the construction process

This research investigates effectiveness of real site visits within an undergraduate course. Experiential learning is a process of providing education, based on the experiences and observations of real-world examples. Some of the theory of experiential learning has been used to examine whether site visits assist the students learning experience.

The results of the research show that students generally have a positive attitude towards site visits and see them as beneficial. Although the study identified that some aspects of construction technology could be easily replaced by computer simulations and the like, other aspects of the curriculum are more effectively taught by retaining real site visits. The research was intended to provide a more structured approach to determining the value of site-based learning in construction-related courses.