'Where water wells up from the earth’: excavations at the findspot of the Late Bronze Age hoard from Broadward, Shropshire

The paper begins by considering the importance of springs as a focus for votive deposits in Bronze Age Britain. This is not a new idea, but nowhere has this association been examined through the excavation of one of these features. The point is illustrated by excavation at the findspot of a famous group of Late Bronze Age weapons, the Broadward hoard, discovered in 1867. Little was known about the site, where it was found or the character of the original deposit, but a study of contemporary accounts of the hoard, combined with geophysical and topographical surveys, led to small-scale excavation in 2010, which showed that the deposit had most probably been buried in a pit on the edge of a spring. Other finds associated with the spring included an Early Bronze Age macehead, a Roman pot and various Saxon and medieval animal bones. The latest deposit, with a post-medieval carbon date, included a wooden knife or dagger. An adjacent palaeochannel provided an important environmental sequence for this part of the English–Welsh borderland and suggests that the Late Bronze Age hoard had been deposited not far from a settlement. A nearby earthwork enclosure was associated with a clay weight, which may be of similar date. Despite the limited scale of the fieldwork, it illustrates the potential for treating springs associated with artefact finds on the same terms as other archaeological deposits.

Predictability of the Arctic sea ice edge

Skillful sea ice forecasts from days to years ahead are becoming increasingly important for the operation and planning of human activities in the Arctic. Here we analyze the potential predictability of the Arctic sea ice edge in six climate models. We introduce the integrated ice-edge error (IIEE), a user-relevant verification metric defined as the area where the forecast and the “truth” disagree on the ice concentration being above or below 15%. The IIEE lends itself to decomposition into an absolute extent error, corresponding to the common sea ice extent error, and a misplacement error. We find that the often-neglected misplacement error makes up more than half of the climatological IIEE. In idealized forecast ensembles initialized on 1 July, the IIEE grows faster than the absolute extent error. This means that the Arctic sea ice edge is less predictable than sea ice extent, particularly in September, with implications for the potential skill of end-user relevant forecasts.

Adhesion as a tool for in-built nanotechnology design in cementitious materials

Confined water, such as those molecules in nanolayers of 2-3 nm in length, plays an important role in the adhesion of hydrophilic materials, mainly in cementitious ones. In this study, the effects of water containing kosmotropic substances on adhesion, known for their ability of enhancing the hydrogen bond (H-bond) network of confined water, were evaluated using mechanical strength tests. Indeed, to link adhesion provided by water confined in nanolayers to a macro-response of the cementitious samples, such as the bending strength, requires the evaluation of local water H-bond network configuration in the presence of kosmotropes, considering their influences on the extent and the strength of H-bonds. Among the kosmotropes, trimethylamine and sucrose provided a 50% increase in bending strength compared to the reference samples, the latter just using water as an adhesive, whereas trehalose was responsible for reducing the bending strength to a value close to the samples without any adhesive. The results attained opened up perspectives regarding exploring the confined water behavior which naturally occurs throughout the hydration process in cement-based materials.

The impact of work settings on organisational performance measures in built facilities

A current facilities management discourse seeks to discover how the built environment promotes or retards organisational change. However, whether or not significant change arises at all is yet to be definitively established. Hence, a contribution to the school of thought in this direction is considered important. This research investigated organisational performance relative to innovative work settings. The aim of the study was to determine whether organisational performance and, hence, change are indeed brought about by innovative work settings. A sample of 102 work settings was studied, and several null hypotheses on innovative work settings and organisational performance were tested using the Kruskal-Wallis H test. Although subtle shifts were observed in the aspects of organisational performance that seem predicated on innovative work settings, to some extent the proposition that the physical properties and design of the workplace can influence organisational performance was validated.

The academic acclimatisation difficulties of international students of the built environment

Teaching models common to Australasia can be antithetical to those of its Asian neighbours. Australasian andragogy is a bottom-up student-centred mode of knowledge transmission promoting extroverted learning styles, whilst in Asia andragogy is commonly a top-down teacher centred model promoting introspective learning. Yet these teaching styles are in opposition to the cultural-systems attributed to Asia and the West. Such socio-cultural differences are recognised in this research as contributing to the difficulties international Built Environment undergraduates experience when asked to learn in multi-disciplinary collaborative teams. This paper presents the initial stages of a study currently running as a reflexive research program aimed at resolving these learning difficulties. The primary aim of this program is to inform a new culturally inclusive andragogy for design teaching. The outcome of the research questions are addressed through a triangulated analysis including: the formative appraisal of student satisfaction through questionnaires; the summative evaluation of student achievement through the analysis of grades and the assessment of knowledge and skills gained through the measure of student design projects; and illuminative evaluation through focus group discussions and the observation of tutorials.

The academic acclimatisation difficulties of international students of the built environment

Teaching models common to Australasia can be antithetical to those of its Asian neighbours. Australasian andragogy is a bottom-up student-centred mode of knowledge transmission promoting extroverted learning styles, whilst in Asia andragogy is commonly a top-down teachercentred model promoting introspective learning. Yet these teaching styles are in opposition to the cultural-systems attributed to Asia and the West. Such socio-cultural differences are recognised in this research as contributing to the difficulties international Built Environment undergraduates experience when asked to learn in multi-disciplinary collaborative teams. This paper presents the initial stages of a study currently running as a reflexive research program aimed at resolving these learning difficulties. The primary aim of this program is to inform a new culturally inclusive andragogy for design teaching. The outcome of the research questions are addressed through a triangulated analysis including: the formative appraisal of student satisfaction through questionnaires; the summative evaluation of student achievement through the analysis of grades and the assessment of knowledge and skills gained through the measure of student design projects; and illuminative evaluation through focus group discussions and the observation of tutorials.

Main streams and fine rivers : thinking the aporetics of edge

This paper takes up the question (reframed by Deleuze and Guattari) of where expansion takes place: at the ends or from the centre. Despite the connotations of mediocrity that can be attributed to the term ‘mainstream’, it is possible to rethink what happens at close range as the space of radical openings. Writers can often believe that what is most abnormal or fringe will produce the highest probability of creative ‘event’. The question, however, can be posed – framed by the lineage of deconstruction – whether the key to unlocking any system of totality or closed possibility may lie in a very central (although physically peripheral) location. If, instead of the classical image, expansion may occur from re-imagined ‘middles’ rather than conventional ‘margins’, this reading of where potential can arise may offer a more resilient model than that of fragile peripheries, forever exposed to being amputated from staid centres of status and restricted participation. Drawing on the writings of Deleuze and Guattari, Derrida and Badiou, this paper seeks to unsettle any simplistic approach to the notion of edge, reinscribing it within the repetitiveness of our situations, to argue that right in the middle of the so-called mainstream, there might be the fine rivers of aporia that when encountered in thought can constitutes gates to that which is most radical in writing and other creative practices.

Understanding sustainable policy paths and their influence on the built environment

Sustainable development is an international problem as it affects everyone everywhere.Up until recently, it has been pursued on a national scale leading from a confused understanding of sustainability from the international community. The various international summits and meetings on the topic have allowed establishment of general guidelines and attitudes that need to be taken by national policy writers. Because of the lack of understanding on the topic, as it encompasses many aspects of social, economic and environmental behaviours, there has been a general individual interpretation of these ideas that has then shaped national policies. These policies differ in nature and therefore must be analysed to identify these differences and their implications on the built environment. The Melbourne 2030 plan and the London plan are two of the leading and highly mentioned policies stemming from the advanced nature of the respective economies. These nations’ polices have implications that trickle down to the very core of building design and lead stakeholders in certain directions as opposed to others. The research attempts to highlight the paths taken by these different nations and what influence this has had on the overall state of sustainable development in the localised communities respectively. Analysing the state of sustainable development ideas from the international, to the national and down to the local policy strategies will give a clear picture of the state of policy direction in the localised context. Looking then at two buildings in these contexts identifies how policy can play a major role in shaping sustainable design related outcomes. The research finds that the UK and London plan is well-structured and pays close attention to the built environment while there is much less evidence of this in the Australia and Melbourne policy plans. This can be seen in the overall outcome of the chosen building case studies where the chosen London building shows more promise in its sophisticated use of technologies to achieve a highly sustainable building as compared to the chosen Melbourne building. It has been suggested that because of the differences in rating tools and their applications, there may be problems in successfully comparing two buildings in different contexts. This gives rise to the question of global sustainability where it is understood that sustainability is a global problem and cannot be tackled on a fragmented basis. This then may suggest that the international stage of sustainable understanding should be holistic in that it should be tackled at a global stage instead of the current fragmented national stage.

When a local competitor (slightly) shakes up the global giant: a case on the soft drink market

As marcas globais mantiveram muita atenção no campo do marketing (Kotler, 1997; Holt, Quelch, e Taylor, 2004; Özsomer e Altaras, 2008), enquanto as marcas locais foram subestimadas (Ger, 1999; Schuiling e Kapferer, 2004). No entanto, o debate adaptação contra padronização foi amplamente discutido. Centra-se na definição de como uma empresa internacional deve construir a sua estratégia: ao padronizar sua estratégia de marketing ou, adaptando para melhor atender a cultura e às necessidades locais (Levitt, 1983; Subhash, 1989; Herbig, 1998; Holt, 2004; Melewar e Vemmervik , 2004; Heerden e Barter, 2008). No entanto, este assunto não foi discutido no contexto específico do consumo alternativo oferecido por concorrentes locais específicos. Hoje em dia, um aumento na oferta de produtos alternativos é observado. O consumo socialmente responsável está crescendo (Sen e Bhattacharya, 2001; Holt, 2002; Loureiro, 2002; François-Lecompte e Valette-Florence, 2006). O mercado dos refrigerantes de cola é de interesse particular. Colas alternativas são refrigerantes de cola que surgiram durante a última década em algumas regiões ou zonas específicas do mundo. Estas colas claramente posicionam-se como uma alternativa ao refrigerante global Coca-Cola. A alternativa não é baseada no preço mas nas características especiais dos produtos que constituem uma proposição de valor específica, diferente da Coca-Cola. Na França, desde uma década, o número de colas regionais aumentou, sendo mais de quinze hoje. O refregirante Breizh Cola foi lançado em 2002 e atinge quase uma quota de mercado de 10% na região Bretanha hoje. Em 2009, a Coca-Cola Entreprise iniciou uma campanha de marketing específica, na Bretanha, baseada em recursos visuais e parcerias regionais. Este caso de adaptação em um contexto de concorrência local específico é explorado nesta dissertação que incide sobre as razões da preferência para Breizh Cola, de um lado, e sobre as acções empreendidas pela Coca-Cola na Bretanha, do outro lado. Este estudo mostra que a Coca-Cola anda nos passos de Breizh Cola, a fim de melhor atender às expectativas local.

The market strategies alternatives of an e-business start-up in Brazil

The e-business market is one of the fastest growing markets in Brazil, with e-business sales accounting for BRL 14.8 billion in 2010 and a growth of 40% per year (+1000% over the past 7 years). Sales-event clubs and collective bargaining websites are one of the most dynamic segments of the e-business market: the number of new players is increasing rapidly, with over 1200 collective bargaining websites currently operating in Brazil. In that context, growth and differentiation seem to be two key success factors for Coquelux. According to webshopper (23rd Edition, e-bit), growth can be achieved by targeting middle and low-income consumers from class C, who represent 50% of the total e-commerce sales. But Coquelux, which is specialized in desire and luxury brands, has built its reputation and competitive advantage through its “exclusivity”, by targeting wealthier consumers from classes A and B who are attracted by its fashionable and high-end positioning. The evolution (growth?) of this market and the development of its competition naturally raise a strategic question for Coquelux’s managers: can Coquelux grow and still maintain its competitive advantage? Should it grow by expanding its consumer base to class C? If so, how? Consumers from classes A, B or C must be targeted through the same online communication channels. Recent studies from the ABEP/ABIPEME emphasized the importance of social networks as a tool for converting new clients and gaining their loyalty, regardless of their social class. However, high-income and low-income e-consumers do not have the same consumption habits, do not respond to the same type of marketing strategies, and most importantly, do not share the same values. Thus, it seems difficult to expand Coquelux’s consumer base to class C without changing its marketing strategies and altering its image Three options were identified for Coquelux: reinforcing its leadership on the luxury segment and focusing on a small niche market (1), which would threaten its survival in the long run; completely changing its strategy and competing for a mass market through commercial brands (2), which requires major financial investments that managers don’t have access to; or finding an intermediary solution (3). This thesis’ recommendation for the third option consists in focusing on premium brands (rather than luxury) in order to increase sales volume (Coquelux’s most profitable sales happened with local desire brands) with products that appeal to class B but also attract the emerging class C which is looking for brand recognition. It could thus implement a slow entry strategy towards the mass market without damaging its main competitive advantage.

A well-balanced flow equation for noise removal and edge detection

In this paper, an anisotropic nonlinear diffusion equation for image restoration is presented. The model has two terms: the diffusion and the forcing term. The balance between these terms is made in a selective way, in which boundary points and interior points of the objects that make up the image are treated differently. The optimal smoothing time concept, which allows for finding the ideal stop time for the evolution of the partial differential equation is also proposed. Numerical results show the proposed model's high performance.

Influence of the tool edge geometry on specific cutting energy at high-speed cutting

This paper presents specific cutting energy measurements as a function of the cutting speed and tool cutting edge geometry. The experimental work was carried out on a vertical CNC machining center with 7,500 rpm spindle rotation and 7.5 kW power. Hardened steels ASTM H13 (50 HRC) were machined at conventional cutting speed and high-speed cutting (HSC). TiN coated carbides with seven different geometries of chip breaker were applied on dry tests. A special milling tool holder with only one cutting edge was developed and the machining forces needed to calculate the specific cutting energy were recorded using a piezoelectric 4-component dynamometer. Workpiece roughness and chip formation process were also evaluated. The results showed that the specific cutting energy decreased 15.5% when cutting speed was increased up to 700%. An increase of 1 °in tool chip breaker chamfer angle lead to a reduction in the specific cutting energy about 13.7% and 28.6% when machining at HSC and conventional cutting speed respectively. Furthermore the workpiece roughness values evaluated in all test conditions were very low, closer to those of typical grinding operations (∼0.20 μm). Probable adiabatic shear occurred on chip segmentation at HSC Copyright © 2007 by ABCM.

Edge detection in digital images using fuzzy numbers

The purpose of this paper is to introduce a new approach for edge detection in grey shaded images. The proposed approach is based on the fuzzy number theory. The idea is to deal with the uncertainties concerning the grey shades making up the image and, thus, calculate the appropriateness of the pixels in relation to a homogeneous region around them. The pixels not belonging to the region are then classified as border pixels. The results have shown that the technique is simple, computationally efficient and with good results when compared with both the traditional border detectors and the fuzzy edge detectors. Copyright © 2009, Inderscience Publishers.

Influence of maxillary incisor edge asymmetries on the perception of smile esthetics among orthodontists and laypersons

Introduction: Our objective was to determine the perception of smile esthetics among orthodontists and laypeople with respect to asymmetries on the maxillary incisor edges in a frontal smile analysis. Methods: Two frontal close-up smile photos of 2 women, 1 white and 1 Afro-Brazilian, were selected for this study. Both smiles displayed healthy maxillary anterior dentitions. The images were digitally altered to create tooth wear on the maxillary left central and lateral incisors in 0.5-mm increments. The final images were randomly assembled into a photo album that was given to 120 judges, 60 orthodontists and 60 laypersons. Each rater was asked to evaluate the attractiveness of the images with visual analog scales. The data collected were statistically analyzed with 1-way analysis of variance with the Tukey post-hoc test and the unpaired Student t test. Results: The most attractive smiles in both types of smiles were those without asymmetries and the 0.5-mm wear in the lateral incisor. In general, tooth wear was considered unattractive by both groups of raters following a pattern: the more tooth wear, the more unattractive the smile; tooth wear in the central incisor was considered more unattractive than in the lateral incisor. For both group of raters, 0.5 mm of wear in the central incisor was considered unattractive, whereas the thresholds for lateral incisor discrepancies were 0.5 mm for orthodontists and 1.0 mm for laypersons. Conclusions: The result of this study corroborates the clinical assumption that symmetry between the maxillary central incisors is a paramount goal for esthetic treatments. Copyright © 2013 by the American Association of Orthodontists.

Avaliação do desempenho de um aeromotor de eixo vertical

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