Transport and Environment Database System (TRENDS): Maritime Air Pollutant Emission Modelling

This paper reports the development of the maritime module within the framework of the Transport and Environment Database System (TRENDS) project. A detailed database has been constructed for the calculation of energy consumption and air pollutant emissions. Based on an in-house database of commercial vessels kept at the Technical University of Denmark, relationships between the fuel consumption and size of different vessels have been developed, taking into account the fleet's age and service speed. The technical assumptions and factors incorporated in the database are presented, including changes from findings reported in Methodologies for Estimating air pollutant Emissions from Transport (MEET). The database operates on statistical data provided by Eurostat, which describe vessel and freight movements from and towards EU 15 major ports. Data are at port to Maritime Coastal Area (MCA) level, so a bottom-up approach is used. A port to MCA distance database has also been constructed for the purpose of the study. This was the first attempt to use Eurostat maritime statistics for emission modelling; and the problems encountered, since the statistical data collection was not undertaken with a view to this purpose, are mentioned. Examples of the results obtained by the database are presented. These include detailed air pollutant emission calculations for bulk carriers entering the port of Helsinki, as an example of the database operation, and aggregate results for different types of movements for France. Overall estimates of SOx and NOx emission caused by shipping traffic between the EU 15 countries are in the area of 1 and 1.5 million tonnes, respectively

Variation, norms and prescribed standard in the Mandarin Chinese spoken in Singapore

Relatório de estágio do mestrado em Economia, apresentado à Faculdade de Economia da Universidade de Coimbra, sob a orientação de Carlos Carreira e Edgar Silva.No decorrer do estágio curricular, verificou-se o incremento do número de processos de insolvência de empresas-clientes da My Business, a entidade de acolhimento do presente estágio curricular. A recessão económica de 2008-2012 teve um grande impacto na economia portuguesa, refletindo-se na dinâmica das empresas, onde se observam variações significativas das taxas de entrada e saída de empresas e de criação e destruição de emprego nos diversos sectores. Este trabalho tem um duplo objetivo: primeiro, apresentar e enquadrar sectorialmente e regionalmente a entidade de acolhimento; segundo, analisar os efeitos da crise económica na dinâmica da indústria transformadora portuguesa. Na sua concretização adotou-se uma abordagem não experimental, delineando uma via descritiva e exploratória. Entre 2008 e 2012, observou-se um aumento substancial na destruição de emprego relativamente ao período de pré-crise e um pico na taxa de saída de empresas do mercado em 2011, coincidindo com a aplicação do Memorando de Entendimento. A saída de empresas parece ser influenciada negativamente por variáveis como o nível de produtividade e a dimensão da empresa. A entrada de empresas não apresenta qualquer impacto estatisticamente significativo na taxa de risco de saída das empresas. Durante o período de crise, as restrições financeiras das empresas são preponderantes sobre a produtividade no risco de saída

Narrative writing, reading and cognitive processes in middle childhood: what are the links?

This study investigated the relationship between measures of reading and writing, and explored whether cognitive measures known to be related to reading ability were also associated with writing performance in middle childhood. Sixty-Four children, aged between 8 years 9 months and 11 years 9 months, took part in a battery of writing, reading, and cognitive ability tasks. Reading fluency emerged as having a strong relationship to written language performance, after controlling for age and verbal reasoning. While children with reading difficulties were weak at spelling accuracy, they were otherwise found to produce written compositions of similar quality to typical readers. Boys produced less written text than girls, but did not demonstrate weaker written language abilities. Collectively the results demonstrate that writing skills can be separated into transcription and composition processes, and highlight the need for further research on the relationship between reading fluency and children’s writing

Precipitation sensitivity to autoconversion rate in a numerical weather-prediction model

Aerosols are known to significantly affect cloud and precipitation patterns and intensity, but these interactions are ignored or very simplistically handled in climate and numerical weather-prediction (NWP) models. A suite of one-way nested Met Office Unified Model (UM) runs, with a single-moment bulk microphysics scheme was used to study two convective cases with contrasting characteristics observed in southern England. The autoconversion process that converts cloud water to rain is directly controlled by the assumed droplet number. The impact of changing cloud droplet number concentration (CDNC) on cloud and precipitation evolution can be inferred through changes to the autoconversion rate. This was done for a range of resolutions ranging from regional NWP (1 km) to high resolution (up to 100 m grid spacing) to evaluate the uncertainties due to changing CDNC as a function of horizontal grid resolution. The first case is characterised by moderately intense convective showers forming below an upper-level potential vorticity anomaly, with a low freezing level. The second case, characterised by one persistent stronger storm, is warmer with a deeper boundary layer. The colder case is almost insensitive to even large changes in CDNC, while in the warmer case a change of a factor of 3 in assumed CDNC affects total surface rain rate by ~17%. In both cases the sensitivity to CDNC is similar at all grid spacings <1 km. The contrasting sensitivities of these cases are induced by their contrasting ice-phase proportion. The ice processes in this model damp the precipitation sensitivity to CDNC. For this model the convection is sensitive to CDNC when the accretion process is more significant than the melting process and vice versa

Educational archaeology and the practice of utopian pedagogy

This paper explores the idea, and some elements of the (potential) practice, of utopian pedagogy. It begins by outlining the general aims of ‘utopian pedagogy’ and notes the shift within contemporary writings away from the metaphor of the architect (armed with a utopian ‘blueprint’) towards that of the archaeologist. The ontological underpinnings of educational archaeology are discussed before attention turns to a critical examination of the pedagogical process of excavation. The key questions here are (to labour the metaphor) where to dig and how to identify a utopian find. The paper argues that, without a substantive normative vision to serve as a guide, utopian archaeology is conceptually flawed and practically ineffectual, romanticising an endlessly open process of exploration. The final section suggests that the fears associated with utopian architecture (authoritarian imposition, totalising closure) are misplaced and that drawing up a ‘blueprint’ should be the aim and responsibility of utopian pedagogy

Search for dark matter with a 231-day exposure of liquid argon using DEAP-3600 at SNOLAB

DEAP-3600 is a single-phase liquid argon (LAr) direct-detection dark matter experiment, operating 2 km underground at SNOLAB (Sudbury, Canada). The detector consists of 3279 kg of LAr contained in a spherical acrylic vessel. This paper reports on the analysis of a 758  tonne⋅day exposure taken over a period of 231 live-days during the first year of operation. No candidate signal events are observed in the WIMP-search region of interest, which results in the leading limit on the WIMP-nucleon spin-independent cross section on a LAr target of 3.9×10−45  cm2 (1.5×10−44  cm2) for a 100  GeV/c2 (1  TeV/c2) WIMP mass at 90% C.L. In addition to a detailed background model, this analysis demonstrates the best pulse-shape discrimination in LAr at threshold, employs a Bayesian photoelectron-counting technique to improve the energy resolution and discrimination efficiency, and utilizes two position reconstruction algorithms based on the charge and photon detection time distributions observed in each photomultiplier tube

Recasting Jung Through an Indigenist Approach to Deepen Shared Knowledges of Well-being and Healing on Australian Soils: Protocol for a Qualitative Landscape Research Study

Background: The colonization of Australia is responsible for complex layers of trauma for the First Nations peoples of the continent. First Nations Australians' well-being is irrevocably tied to the well-being of the land. The application of a landscape-based approach to collaborative research shows promise in enabling genuine relationships that yield rich and informative data. However, there is a lack of practical evidence in the field of landscape research—research tied to First Nations Australians' worldviews of landscape.Objective: This study aims to deepen shared knowledges of well-being and healing on Australian soils. We aim to examine ritual co-design as a novel method for deepening these shared knowledges.Methods: This research comprises a qualitative and participatory action research design operationalized through an Indigenist approach. It is a 2-phase project that is co-designed with First Nations Australians. Phase 1 of this project is a relational study that endeavors to deepen the theory underpinning the project, alongside the development of meaningful and reciprocal community connections. Phase 2 is a series of 3 participatory action research cycles to co-design a new communal ritual. This process seeks to privilege First Nations Australians' voices and ways of knowing, which are themselves communal, ritual, and symbolic. The framework developed by psychiatrist Carl Jung informs the psychological nature of the enquiry. An Indigenist approach to landscape research recasts the Jungian frame to enable a culturally safe, context-specific, and landscape-based method of qualitative research.Results: The research is in the preliminary stages of participant recruitment. It is expected that data collection will commence in late 2022.Conclusions: It is expected that this qualitative and co-designed project will strengthen the cross-cultural co-designer relationships and that the data gathered from these relationships, and the accompanying practical outcomes, will provide new insight into the interaction between human and landscape well-being. The field of landscape research is in an embryonic phase. This new field is embedded in the understanding that First Nations Australians' well-being is irrevocably tied to the well-being of the land, and this study seeks to build on this evidence base. A strength of this research is the relational methodology, in which First Nations Peoples' needs and desires will inform future research directions. It is limited by its context specific nature; however, it is expected that findings will be usable in guiding future research directions in the multidisciplinary field of landscape research

Electromagnetic backgrounds and potassium-42 activity in the DEAP-3600 dark matter detector

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