Lifecycle environmental impact and cost analyses of steel bridge piers with seismic risk

Lifecycle approaches have found their wide applications in analyzing, evaluating and assessing technologies and management methods in the infrastructure systems. While environmental problems such as global warming have become a serious issue in the world, researchers and practicing engineers in civil engineering have to pay attention to environmental impacts as well as function, safety, cost and aesthetics in the
whole lifecycle of civil infrastructures. In addition to the normal lifecycle activities accompanied with operation and aging, the effects of natural hazards such as earthquakes with a low occurrence probability but a high
hazard loss require a full consideration in determining both lifecycle cost and lifecycle environmental impact. In this research, an approach is proposed to predetermine the lifecycle environmental impact and costs of bridges from their construction and maintenance as well as the losses and recovery after natural hazards. Based on this research, it becomes possible to quantitatively outline the roles of bridge construction, maintenance and earthquake in both environmental impact and cost in the whole lifetime of a bridge, especially their constituent parts from seismic losses and recoveries.

Mathematics as a second language : looking for a bridge between mathematical language and the language of thought

Our thoughts are in one language, and mathematical results are expressed in a language foreign to the way we think. Mathematics is a unique foreign language with all the components of a language; it has its own grammar, vocabulary, conventions, synonyms, sentence structure, and paragraph structure. Students need to learn these components to partake in a thorough discussion of how to read, write, speak and think mathematics. Beginning with the students natural language and expanding that language to include symbolism and logic is the key. Providing lessons in concrete, pictorial, written and verbal terms allows the instructor to create a translation bridge between the grammar of the mother language and the grammar of mathematics. This papers presents methods to create the translation bridge for students so that they become articulate members of the mathematics community. The students "mother" language, expanded to include the symbols of mathematics and logic, is the the key to both the learning of mathematics and its effective application to problem situations. The use of appropriate language is the key to making mathematics understandable.

Rope dancer : a novel and accompanying essay

The thesis combines a novel and a critical essay. The novel tells of a group of people in Melbourne, some of whom write, party, have sex, take drugs, go climbing and die. The essay discusses four aspects of the novel: climbing fiction, Nietzsche in literature, place and fiction and character as hero.

A pathway to enhancing professionalism: building a bridge between TAFE and university early childhood qualifications

It has been argued that a key strategy to improve developmental and educational outcomes for young children is to increase the number of childcare staff with early childhood university degrees (Saracho & Spodek, 2007). In order to upgrade the qualifications of staff, a number of Australian universities provide pathways that enable graduates of early childhood diploma programs to complete a degree. Several impediments, including institutional structures and individual contextual and personal factors, may affect these pathways. Although a range of organisations offer diploma programs, TAFE (Tertiary and Further Education) is a major provider. The aim of the present study was to investigate student transition between early childhood programs in TAFE and university. The research drew on several data sources, including a survey of the perceptions of students at various points of undertaking the transition. The current credit arrangement for TAFE Diploma graduates was found to be satisfactory; however, gaps were identified between the TAFE and university teaching and learning arrangements with regard to curriculum structures, teaching styles and assessment. Graduates of both programs considered that the completion of both awards would have a positive effect on their careers.

Cultural landscapes : a bridge between culture and nature?

Cultural landscapes are intended to increase awareness that heritage places (sites) are not isolated islands and that there is an interdependence of people, social structures, and the landscape and associated ecological systems. The paper explores whether the recognition of the 1992 World Heritage Cultural Landscape categories, the IUCN Protected Landscapes and the 2005 merging of cultural and natural criteria for World Heritage purposes have been effective in bridging the gap between culture and nature philosophically and in practice. With particular reference to opportunities presented in the Asia-Pacific region, where traditionally culture and nature are not regarded as separate, people are part of nature, the paper will further critically review the nature–culture link and its implications for North American-style national parks where cultural associations may not be seen to be necessary or even desirable. It suggests the imperative of highlighting and respecting in heritage nominations and inscriptions deep cultural associations of traditional communities with natural sites and implications for management to protect cultural and biological diversity and the need for thematic studies.

The human bridge

Two of the ideas taken into collaborative groups emerging within the workshop symposia were: 1. models of collaboration and 2. notions of the gift and gift economy. This research addressed the idea of stepping on other to progress. And asks the question as to how whether one will literally step on another person and how one handles this delicate proposition when confronted with it the notion of putting their weight on the bodies of several people lying on the ground. In this performance, several people lie on the floor blocking access to a entrance way. Persons wishing to enter the space for activities in the community hall, must walk over the person lying on the floor. Two assistants advise, guide and encourage persons entering the hallway if they request or look in need of assistance traversing the human bridge.

Synthetic evaluation method for bridge priority ranking

In order to maintain the transportation operation, proper monitoring systems should be established on road structures, especially bridges. Since these systems need enormous investments, only a part of bridges should be equipped. Thus, the priorities of the bridges should be ranked. In this paper, a method based on two-level synthetic evaluation is proposed. First, the importance of each bridge is analyzed through the economic analysis. Six factors are considered for the bridges in a network, including construction cost, service duration, length, location importance coefficient, traffic volume, and reconstruction time. Second, the safety condition of the bridge is evaluated by using improved entropy method (IEM) which combines subjective weight with objective entropy weight. Five indices are incorporated in this step, i.e., design and construction condition, technical condition, level of overloading, hazard of wind and earthquake and environmental factors. Finally, the priorities of all the bridge in one network can be ranked and classified through a judge matrix. To demonstrate the effectiveness of the proposed method, a main highway including 16 bridges is taken as an illustrative example. The results show that the bridges can be ranked and classified quickly by using the proposed method.

Crossing the bridge: the first-person and time

Personal identity theory has become increasingly sensitive to the importance of the first-person perspective. However, certain ways of speaking about that perspective do not allow the full temporal aspects of first-person perspectives on the self to come into view. In this paper I consider two recent phenomenologically-informed discussions of personal identity that end up yielding metaphysically divergent views of the self: those of Barry Dainton and Galen Strawson. I argue that when we take a properly temporally indexical view of the first-person perspective, and thereby resist the assumption that phenomenally figured and theoretically-figured identity claims must have a common object, the metaphysically awkward accommodations each of these authors is compelled to make cease to be necessary.