Daylight for sustainable development of historic sites

Consideration of daylight is one of the contextual ingredients for maintaining a sustainable identity when intervening in a heritage site. Appropriate consideration of daylighting ensures not only visual and thermal comfort in the urban setting, but also contributes to the preservation of the place visual identity. The historic district of el Darb al-Asfar is undergoing a rehabilitation project that raises questions about the new ‘sparking’ look of the place. The ongoing cultural debate in old Cairo on the extent of success of the rehabilitation efforts in preserving the place identity identified a gap in literature regarding the ingredients that constitute identity in heritage settings. The paper argues that the project using new finishing materials of facades has led to changes in daylight levels in the space and hence the visual perception of the place itself. This paper aims to assess the impact of such intervention on the visual perception and the space identity. A digital model is built utilising a combination of photogrammetric and 3D digital technique. The TOWNSCOPE simulation package is used to trace the performance of direct, diffused, and reflected components of daylight within the original and recently resorted scenes. The output of the simulation exercise has been validated by empirical data. The paper concludes by suggesting a set of measures for achieving an appropriate daylight performance in heritage sites Eastern Mediterranean climatic conditions.

Urban sustainability and market typologies : lessons from Tabriz Bazaar

The market is an essential component of urban form. Contemporary shopping malls can benefit from the inherent efficiencies of traditional markets. This paper addresses the development of sustainable models of market typologies based on a specific case study, the Bazaar of Tabriz in Iran.

As one of the biggest historical covered markets in the world (Moradi and Nassabi 2007), it remains an effective trading centre in the city. What are the lessons that make Tabriz a sustainable urban typology and what lessons can we draw from its spatial and operational structure?

To address this question, the paper presents two analytical studies of the urban and building morphology of Tabriz. First, the paper presents an analysis of the urban and social structure of the market based on Lynchian analysis. Second, it provides an analysis of the thermal, ventilation and lighting principles used in the buildings of the market and how they respond to the extreme climatic conditions of north-west Iran.

Rainfall and snow in one side and hot summers in the other, give the buildings in the city really critical performance in terms of life span during the years of operation.

The main target in this case study, is to illuminate the urban typological clarifications in the Bazaar of Tabriz, which wilt elucidate how parallel links between urban morphology (land cover) and urban typology (land use) in a defined urban planning can form a sustainable urban space. Moreover, how the case of this study can be an energy efficient complex with its own urban morphology.

The lessons of Tabriz for the development of contemporary markets are summarised in the paper and need to be addressed at two scales, namely the urban scale and the scale of the building.

Hydrolysis of citrus peel waste with recombinant rhamnosidase for bioenergy generation

Large amounts of Citrus peel (rich in poly-phenolic compounds) are generated as a by-product of the juice processing industry. Development of alternative, higher valued products utilizing peel waste from grapefruit, oranges, Valencia and other citrus fruit would benefit citrus juice processors by providing them with means to profitably process their peel waste and to avoid environmentally hazardous dumping. Citrus peel waste [CPW, comprised of peel, membranes and juice vesicles] contains a high level of polyphenols and has been used for the production of animal feed, single-cell protein, fibre, enzyme(s), immobilization support & bio-sorbent for heavy metal removal. Naringin (a major tri-hydroxy flavonoid glycoside) is available in large amounts in citrus peel, processed juice and can be extracted from citrus peel waste1. The extracted naringin is further hydrolysed by rhamnosidase to produce D-rhamnose for the production of ethanol and other fermentation products. We have produced a recombinant enzyme2 that has the ability to catalyse the cleavage of terminal rhamnoside groups from naringin to prunin and rhamnose. We have recovered important sugar “D-rhamnose” from the processed waste which would be utilized for ethanol production3. This presentation will summarize current efforts to develop an enzymatic treatment which would facilitate the economical processing of citrus waste for bioenergy generation.

Analysis of the cost performance of structural building frames in Australia

The significance of this research is that it is the first comprehensive analysis of cost performance across Australia. It is well known that measuring cost performance is not an easy task; comparisons of building projects on a `like-for-like’ basis are uncommon, and rarely occur in the real world. However, this paper analyses 120 different structural frame models that represent various; structural designs, construction methods, grid spans, and locations.

The research produced price models that were representative of structural frames used in medium-rise non-residential buildings. It is based on pricing a number of standard building frame designs in five Australian cities. The results represent the cost of producing the same building in different locations, using similar building construction techniques. By utilizing a standard model, project variables like building quality, ground conditions and access were eradicated, thereby facilitating an unbiased comparison of cost performance. I addition, the results are an indicator of building productivity based on costs per square metre of various construction types.

This research provides the Australian industry with robust data about the relative cost performance of various structural building frames. In addition, this research has wider implications because the models may also become useful data for the measuring relative cost performance in other countries.

Strategies for the implementation of continuing professional development for SMEs in construction

The Victorian government (in Australia) intends to mandate that all registered building practitioners (RBP) undertake a minimum level of Continuing Professional Development (CPD) as part of the registration process. The introduction of CPD increases the travel costs for construction practitioners; due to the necessity to undertake a minimum level of training. This places an increased burden on construction companies' especially small regional-based firms that are not in a position of financial strength. This research is based on study of training needs of 73 construction companies in Victoria, Australia. The results show that training costs are being unequally weighted towards small regional-based firms; suggesting that the location of the company is a major contributing factor to their ability to meet registration requirements. Regional companies have comparatively high costs for training compared to metropolitan-based firms. Company location is a limiting factor that impacts on the ability of regional firms to implement training programs. This research investigates the notion that increasing registration requirements will improve outcomes for all participants.

International contact lens prescribing in 2011

This is the 11th annual report of contact lens prescribing trends that we have prepared for Contact Lens Spectrum. Each year, we capture current modes of contact lens practice by asking practitioners in each market (optometrists, opticians or ophthalmologists, as appropriate) to provide information about the first 10 lens fits undertaken after receiving our paper or electronic survey form. In 2011, we captured information about 22,362 fits in 29 countries.

International contact lens prescribing in 2010

For the past nine years, we have described the current state of contact lens fitting worldwide in Contact Lens Spectrum. This year, we report on 24,642 lens fits in 27 markets. As in all previous years, coordinators in each market distributed up to 1,000 paper or electronic survey forms to contact lens practitioners who, in turn, collected information about their next 10 fits. Data were processed and checked in the survey administrative offices in Manchester, United Kingdom and in Waterloo, Canada.

The dictionary

The Portia Geach Memorial Award is a celebration of female Australian artists. It’s Australia’s most prestigious portrait prize for female artists and has greatly contributed to the development of female artists in this country. It was established by Florence Kate Geach in 1961 in memory of her sister, Portia Geach and is awarded each year to the best portrait painted from life of some man or woman distinguished in Art, Letters or the Sciences. Our judges this year are Jane Watters, Director S.H. Ervin Gallery, Dr Lindy Lee, Senior Lecturer, Sydney College of the Arts and Ben Quilty, Artist. A media release with the full list of finalists will be distributed tomorrow morning with further details available at www.thetrustcompany.com.au/portiageach. The artwork The Dictionary will be hung in the S.H. Ervin Gallery from 3 October until 16 November, with the exhibition open from 4 October, 1st Prize money $30,000

Researching women in silent cinema: new findings and perspectives

This anthology exposes the richness and variety of interests that motivate feminist film research today. Exploring women’s contribution to silent cinema, scholars from across the globe address questions of performance, nationality, industry, technology, labor, and theory of feminist historiography. The volume builds on the thematic, methodological, and material diversity that characterized earlier efforts in women’s film history, and the originating context of the sixth Women and the Silent Screen conference (Bologna, 2010). Much emphasis is given to the transitional period of silent cinema (1910s to the early 1920s), which emerges as the field where feminist film scholars are beginning to claim their own theoretical and historical ‘place’. While giving a new impetus to the idea of transitional cinema, the collected essays also illuminate the importance of film’s transnational circulation. Questions of nation and nationhood, and women’s inclusion or exclusion within these terms, are examined in connection to issues of cultural globalization. How did American serial queens impact early Chinese film? How did the variety stage accommodate American films in Rio de Janeiro? Along what lines might we discuss women filmmakers who literally toured the world? These are just some of the issues that are discussed in the volume. Each investigation prompts us into distinct acts of cultural contextualization. A particular focus on acting and the agency of the actress is shared across the volume. The fundamental figure of the actress links multiple threads of scholarship, traversing different films and national cinemas. Alice Guy, Asta Nielsen, Florence Turner, Lois Weber, Mary Pickford, Esfir’ Shub, Pearl White, Vera Karalli, Aleksandra Khokhlova, Elsa Lanchester, Louise Fazenda, Sarah Bernhardt, Gemma Bellincioni, Angelina Buracci, Yin Mingzhu, Leni Riefensthal: these are but some of the names that are encountered across the essays in the collection. New findings are exposed and new research perspectives are opened through these and other figures, allowing us to uncover original ways of thinking about women’s visibility and agency on film.

International contact lens prescribing in 2013

Every year since 2001, we have reported data from an international survey of contact lens prescribing in Contact Lens Spectrum. This work, which first started in the United Kingdom, has now recorded information about more than 250,000 contact lens fits in 54 countries. Our approach is simple. We ask contact lens prescribers (optometrists, opticians, or ophthalmologists, depending on the country) to record information about the first 10 contact lens fits that they perform after the start of the survey period each year. Each fit is then weighted to reflect the volume of fits performed by each practitioner. Information is collated at our two survey offices in Manchester, United Kingdom and Waterloo, Canada. For this report of contact lens prescribing in 2013, we report data for 21,673 lens fits in 31 markets around the world.

International contact lens prescribing in 2012

Each year we survey contact lens prescribing colleagues around the world (optometrists, opticians, or ophthalmologists depending on the country) and request prospective information about the first 10 patients that they fit with contact lenses after receipt of our survey. In this, our 12th consecutive annual report for Contact Lens Spectrum, we present information relating to 20,566 contact lens fits across 36 countries.

Impact of grain microstructure on the heterogeneity of precipitation strengthening in an Al-Li-Cu alloy

The effect of grain microstructure on the age-hardening behavior is investigated on recrystallized and un-recrystallized Al-Cu-Li alloys by combining electron-backscatter-diffraction and micro-hardness mapping. The spatial heterogeneity of micro-hardness is found to be strongly dependent on the grain microstructure. Controlled experiments are carried out to change the pre-strain before artificial ageing. These experiments lead to an evaluation of the range of local strain induced by pre-stretching as a function of the grain microstructure and results in heterogeneous formation of the hardening T1 precipitates.

Flight costs and fuel composition of a bird migrating in a wind tunnel

We studied the energy and protein balance of a Thrush Nightingale Luscinia luscinia, a small long-distance migrant, during repeated 12-hr long flights in a wind tunnel and during subsequent two-day fueling periods. From the energy budgets we estimated the power requirements for migratory flight in this 26 g bird at 1.91 Watts. This is low compared to flight cost estimates in birds of similar mass and with similar wing shape. This suggests that power requirements for migratory flight are lower than the power requirements for nonmigratory flight. From excreta production during flight, and nitrogen and energy balance during subsequent fueling, the dry protein proportion of stores was estimated to be around 10%. A net catabolism of protein during migratory flight along with that of fat may reflect a physiologically inevitable process, a means of providing extra water to counteract dehydration, a production of uric acid for anti-oxidative purposes, and adaptive changes in the size of flight muscles and digestive organs in the exercising animal.