Forecasting the Impact on Demand Management Strategies: Results from Saturn Model Tests (Part 1)

This report provides a summary of the network modelling which has been undertaken as part of the "Transport Demand Management in Historic Cities" research project. This report describes the development of techniques which enable the strategies of the project, as described in the document "Proposed Strategy Measures - Consultation Document" to be modelled. The results presented within this report should not be taken as the final results for the project. However, the results can be read as a first round of results indicating that the model is capable of forecasting the impacts of the strategies. Furthermore, these results provide an indication of the possible impacts of the strategies and should be used as the basis of discussion with regard to the implications of introduction of such strategies and the manner in which the strategies could he combined

Experimental and Modeling Studies of the Reaction Kinetics of Alkaline-Catalyzed used Frying Oil Glycerolysis using Isopropyl Alcohol as a Reaction Solvent

An alkaline catalyzed glycerolysis of used frying oil using sodium hydroxide and isopropyl alcohol as solvent was investigated. A reaction kinetic model considering glycerol-triglyceride solubility and a second order kinetic mechanism was also developed. The effect of variations in glycerol to used frying oil molar ratio (RGO = 2:1 to 4:1) and temperature (60 to 80ºC) on the rate of reaction were investigated, while the isopropyl alcohol to used frying oil ratio (2:1 v/w) and the concentration of catalyst (3 wt% based on used frying oil) were held constant. Results showed that both RGO and temperature affected the glycerolysis reaction kinetic, with the effect of RGO was found to be superior. The proposed model showed its good agreement with the experimental data. Glycerolysis at RGO = 3:1 and 80ºC in 90 min was found to be a relatively good condition, where 91.03% of tryglceride was converted into MG

Hydrological factors influencing sediment concentration fluctuations in small drainage basins

Although sediment concentrations measured in two contrasting streams in East Yorkshire fluctuate in response to similar hydrological factors, the effectiveness of these factors reflects the environmental characteristics of the drainage basins. Consequently, regression relationships used to predict sediment concentrations in individual streams are not directly applicable outside the region in which they were developed. The sensitivity of sediment concentration variations to environmental conditions makes long term estimates of denudation of limited value

The Politics and Postmodern Reinterpretations of Clinical Praxis:Espousing Local Understanding of Distress

In this paper, inspired by a postmodern reconceptualization of truth and the deconstruction of objectivity, I critique the notion of westerninspired psychotherapy as neutral, universal, apolitical, and normative for all cultures and groups. This value-free idea of clinical praxis,I argue, would advantageously give way to understandings that re-vision the therapeutic encounter as a deeply political context – subject to the vulnerabilities of normal social interactions. Consequently, in view of increasingly credible ideas about the embeddedness of human experience, the subjectivity that must attend ‘scientific’ work, and the deconstruction of hegemonies as givens, I frame the crises currently facing orthodox psychotherapeutic praxis, and challenge its assumed superiority over local espousals of mental distress. This is done in the hope that a new space for more pluralistic forms of therapy might evolve unconstraine

Sorption Mechanism of Lead Ions From Aqueous Solution By Imperata Cylindrica Dried Leaf Particle: Effect of Temperatures

This study was conducted to investigate the sorption mechanism of Pb2+ ions from aqueous solution onto Imperata cylindrica (IC) dried leaf particles. The effect of temperatures (30, 35 and 40oC) was scrutinised from a batch adsorption system using a synthetic liquid waste containing Pb2+ ions. Adsorption of lead ions mechanism was investigated by intraparticle diffusion model. The results showed that higher adsorption rate occurred at higher temperature, and obeyed the pseudo second order adsorption model. The overall rate of lead uptake was found to be controlled by external mass transfer at the beginning of adsorption, then gradually changes to intraparticle diffusion controlled at a later stage. The intraparticle diffusion constant increased with increasing temperature. The values of effective diffusion coefficient (Di) increased at higher temperatures, which were 5.5466 × 10−9, 6.8215 × 10−9, and 7.3726 × 10−9 m2/s at 30, 35, and 40 ◦C, respectivel

Decolonizing the Notion of Mental illness and Healing in Nigeria, West Africa

Mental illness or socially incongruent behaviours and normalcy are conceptualized in radically different ways by culturally diverse groups. These perspectives are informed by paradigms and cosmologies that situate the human person in storied relation to the self, the constructed world and others. However, an epistemological imbalance privileges Western-inspired conceptions of mental health over non-Western or indigenous perspectives. This hegemonic situation serves to propagate a single story about mental health and distress, thereby casting alternative traditions in inferior light. Bolstered by critical psychology’s critique of mainstream psychology and its decidedly postcolonial and social constructivist themes, I address this situation by interrogating the assumptions behind the modernist beliefs of universality and superiority that undergird orthodox clinical praxis. By exploring irreducibly diverse and rich impressions of mental healing, this submission espouses a socioparticipatory and multicultural clinical praxis, challenges positivistic ideas of therapeutic neutrality in Western psychotherapy, presents ‘evidence’ for the effectiveness of indigenous healing traditions and the notional integrity of culturebound ‘illnesses’, and recommends the legitimacy of attendant alleviative practices. Finally, I advocate a re-imagination of the therapeutic landscape – a rethink that addresses the marginalization of indigenous healing systems, and promotes a polyvocality of healing praxis in the Nigerian mental health terrai