Éduquer et communiquer en matière de changements climatiques : Défis et possibilités

Les éducateurs et agents de communication en matière de changements climatiques font face à de nombreux défis. Les concepts scientifiques reliés au climat sont souvent mal interprétés. Les citoyens estiment que les changements climatiques auront peu d’impacts sur leur propre vie. Ils perçoivent peu les changements graduels dans leur environnement. Les comportements de surconsommation rapportent pouvoir, plaisir et reconnaissance. Plusieurs personnes, déconnectées du milieu naturel, ont tendance à prendre des décisions émotives et à résoudre rapidement les problèmes environnementaux. À partir des travaux de recherche dans le domaine, des stratégies de communication et d’éducation sont proposées pour favoriser chez les apprenants une meilleure compréhension des changements climatiques, leur communiquer l’urgence d’agir, les motiver à adopter des comportements d’atténuation et les rendre aptes à implanter des mesures d’adaptation.Educating and communicating about climate change is challenging. Climate change scientific concepts are often misunderstood. People believe that climate change will have few impacts on their own life. People have difficulty to perceive gradual environmental changes. Overconsumption brings people power, pleasure and recognition. People, disconnected from nature, tend to make emotional decisions and to quickly solve environmental problems. Drawn from research, climate change communication and education strategies are presented for helping learners to better understand climate change, communicating the urgency to act, motivating the adoption of mitigation behaviours and reinforcing people’s skills for implementing adaptations

Des communautés de pratique en milieu universitaire : Quels défis et quelle valeur pour l’innovation dans l’organisation ?

Notre article s’intéresse au transfert des connaissances dans deux communautés de pratique universitaires. Nous avons procédé à une analyse comparée de deux communautés de pratique dont l’origine de création et la motivation sont très différentes, bien qu’elles soient toutes les deux issues du milieu universitaire, un milieu rarement étudié sur ce plan. Nous avons observé plusieurs avantages, notamment le développement d’une culture collaborative, le partage des pratiques ou le développement de partenariats. Toutefois, le potentiel d’innovation paraît limité, notamment en raison de la disjonction entre la logique des travailleurs participants et celle de la direction ainsi que l’absence d’acteurs transversaux qui pourraient favoriser le développement des capacités d’apprentissage au sein de ces systèmes sociaux.Our article analyzes communities of practice in two university organizations. We did a comparative analysis of communities of practice with different motivations and origins, while they are both from the university environment, a work sector which is rarely studied. Many advantages were observed, mainly the development of a culture of collaboration, the sharing of practices and the development of partnerships. However the potential for innovation seems limited, partly because of the disjunction between the logics and motivation of the members of the communities and that of the university management, as well as the absence of transversal actors who play an important role in knowledge management and the development of learning capacities in these social systems

The Lantern Vol. 63, No. 1, Fall 1995

• The Birthday Celebration • Surprise! Surprise! • Oregold • Future of Parenthood #2 • Seeds • How I Spent My Summer Vacation • Random Scenes From 1/2 Hour at Work • Life in the Coal Mines • Driveway • Midnight in the Court of Kings • The Black Quadrilateral • People I Hate to See, But Refuse to Dismiss • Metropolized • Poetry in Motion • Dream #3 • Rhythms • Mercykilling • Untitled • Lupine Lord • At the Bottom of the Cup • House of Commons • Poetry I Can\u27t Standhttps://digitalcommons.ursinus.edu/lantern/1147/thumbnail.jp

Heat transfer in a swirling fluidized bed with Geldart type-D particles

A relatively new variant in fluidized bed technology, designated as the swirling fluidized bed (SFB), was investigated for its heat transfer characteristics when operating with Geldart type D particles. Unlike conventional fluidized beds, the SFB imparts secondary swirling motion to the bed to enhance lateral mixing. Despite its excellent hydrodynamics, its heat transfer characteristics have not been reported in the published literature. Hence, two different sizes of spherical PVC particles (2.61mm and 3.65mm) with the presence of a center body in the bed have been studied at different velocities of the fluidizing gas. The wall-to-bed heat transfer coefficients were measured by affixing a thin constant foil heater on the bed wall. Thermocouples located at different heights on the foil show a decrease in the wall heat transfer coefficient with bed height. It was seen that only a discrete particle model which accounts for the conduction between the particle and the heat transfer surface and the gas-convective augmentation can adequately represent the mechanism of heat transfer in the swirling fluidized bed

Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements

Measurement of the inclusive isolated-photon cross section in pp collisions at √s = 13 TeV using 36 fb−1 of ATLAS data

The differential cross section for isolated-photon production in pp collisions is measured at a centre-of-mass energy of 13 TeV with the ATLAS detector at the LHC using an integrated luminosity of 36.1 fb. The differential cross section is presented as a function of the photon transverse energy in different regions of photon pseudorapidity. The differential cross section as a function of the absolute value of the photon pseudorapidity is also presented in different regions of photon transverse energy. Next-to-leading-order QCD calculations from Jetphox and Sherpa as well as next-to-next-to-leading-order QCD calculations from Nnlojet are compared with the measurement, using several parameterisations of the proton parton distribution functions. The predictions provide a good description of the data within the experimental and theoretical uncertainties. [Figure not available: see fulltext.

The Canadian Urban Environmental Health Research Consortium - A protocol for building a national environmental exposure data platform for integrated analyses of urban form and health

Background: Multiple external environmental exposures related to residential location and urban form including, air pollutants, noise, greenness, and walkability have been linked to health impacts or benefits. The Canadian Urban Environmental Health Research Consortium (CANUE) was established to facilitate the linkage of extensive geospatial exposure data to existing Canadian cohorts and administrative health data holdings. We hypothesize that this linkage will enable investigators to test a variety of their own hypotheses related to the interdependent associations of built environment features with diverse health outcomes encompassed by the cohorts and administrative data. Methods: We developed a protocol for compiling measures of built environment features that quantify exposure; vary spatially on the urban and suburban scale; and can be modified through changes in policy or individual behaviour to benefit health. These measures fall into six domains: air quality, noise, greenness, weather/climate, and transportation and neighbourhood factors; and will be indexed to six-digit postal codes to facilitate merging with health databases. Initial efforts focus on existing data and include estimates of air pollutants, greenness, temperature extremes, and neighbourhood walkability and socioeconomic characteristics. Key gaps will be addressed for noise exposure, with a new national model being developed, and for transportation-related exposures, with detailed estimates of truck volumes and diesel emissions now underway in selected cities. Improvements to existing exposure estimates are planned, primarily by increasing temporal and/or spatial resolution given new satellite-based sensors and more detailed national air quality modelling. Novel metrics are also planned for walkability and food environments, green space access and function and life-long climate-related exposures based on local climate zones. Critical challenges exist, for example, the quantity and quality of input data to many of the models and metrics has changed over time, making it difficult to develop and validate historical exposures. Discussion: CANUE represents a unique effort to coordinate and leverage substantial research investments and will enable a more focused effort on filling gaps in exposure information, improving the range of exposures quantified, their precision and mechanistic relevance to health. Epidemiological studies may be better able to explore the common theme of urban form and health in an integrated manner, ultimately contributing new knowledge informing policies that enhance healthy urban living