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  • Phosphorylation of H,K-ATPase α-subunit in microsomes from rabbit gastric mucosa by cAMP-dependent protein kinase

    Resource Type:
    Article
    Creator:
    Rubtsov, Alexander M., Petukhov, Sergei P., Murtazina, Dilyara A., Lopina, Olga D., and Storey, Kenneth B.
    Abstract:
    A 100-kDa protein that is a main component of the microsomal fraction from rabbit gastric mucosa is phosphorylated by cAMP-dependent protein kinase (PKA) in the presence of 0.2% Triton X-100. Microsomes from rabbit gastric mucosa possess activity of H,K-ATPase but not activity of Na,K-ATPase. Incubation of microsomes with 5 μM fluorescein 5′-isothiocyanate (FITC) results in both an inhibition of H,K-ATPase and labeling of a protein with an electrophoretic mobility corresponding to the mobility of the protein phosphorylated by PKA. The data suggest that the α-subunit of H,K-ATPase can be a potential target for PKA phosphorylation.
    Date Created:
    1999-07-27

  • The differential impact of social defeat on mice living in isolation or groups in an enriched environment: Plasma corticosterone and monoamine variations

    Resource Type:
    Article
    Creator:
    Anisman, Hymie, Audet, Marie-Claude, McQuaid, Robyn J., and Jacobson-Pick, Shlomit
    Abstract:
    Social defeat in mice is a potent stressor that promotes the development of depressive- and anxiety-like behaviours, as well as variations of neuroendocrine and brain neurotransmitter activity. Although environmental enrichment may protect against some of the adverse behavioural and biological effects of social defeat, it seems that, among male group-housed mice maintained in an enriched environment (EE), aggressive behaviours may be more readily instigated, thus promoting distress and exacerbating psychopathological features. Thus, although an EE can potentially have numerous beneficial effects, these may depend on the general conditions in which mice were raised. It was observed in the current investigations that EE group-housed BALB/cByJ mice displayed increased anxiety-like behaviours compared to their counterparts maintained in a standard environment (SE). Furthermore, in response to social defeat, EE group-housed male mice exhibited decreased weight gain, exaggerated corticosterone elevations and altered hippocampal norepinephrine utilization compared to their SE counterparts. These effects were not apparent in the individually housed EE mice and, in fact, enrichment among these mice appeared to buffer against serotonin changes induced by social defeat. It is possible that some potentially beneficial effects of enrichment were precluded among group-housed mice, possibly owing to social disturbances that might occur in these conditions. In fact, even if social interaction is an essential feature of enrichment, it seems that some of the positive effects of this housing condition might be optimal when mice are housed individually, particularly with regard to buffering the effects of social defeat.
    Date Created:
    2013-03-01

  • Plasmon-enhanced refractometry using silver nanowire coatings on tilted fibre Bragg gratings

    Resource Type:
    Article
    Creator:
    Bialiayeu, A., Ianoul, Anatoli, Prezgot, Dan, Bottomley, Adam, and Albert, Jacques
    Abstract:
    A novel technique for increasing the sensitivity of tilted fibre Bragg grating (TFBG) based refractometers is presented. The TFBG sensor was coated with chemically synthesized silver nanowires 100nm in diameter and several micrometres in length. A 3.5-fold increase in sensor sensitivity was obtained relative to the uncoated TFBG sensor. This increase is associated with the excitation of surface plasmons by orthogonally polarized fibre cladding modes at wavelengths near 1.5μm. Refractometric information is extracted from the sensor via the strong polarization dependence of the grating resonances using a Jones matrix analysis of the transmission spectrum of the fibre.
    Date Created:
    2012-11-09

  • Cross-section electrical resistance tomography of La Soufrière of Guadeloupe lava dome

    Resource Type:
    Article
    Creator:
    Lesparre, Nolwenn, Adler, Andy, Komorowski, Jean-Christophe, Grychtol, Bartłomiej, and Gibert, Dominique
    Abstract:
    The electrical resistivity distribution at the base of La Soufrière of Guadeloupe lava dome is reconstructed by using transmission electrical resistivity data obtained by injecting an electrical current between two electrodes located on opposite sides of the volcano. Several pairs of injection electrodes are used in order to constitute a data set spanning the whole range of azimuths, and the electrical potential is measured along a cable covering an angular sector of ≈120? along the basis of the dome. The data are inverted to performa slice electrical resistivity tomography (SERT) with specific functions implemented in the EIDORS open source package dedicated to electrical impedance tomography applied to medicine and geophysics. The resulting image shows the presence of highly conductive regions separated by resistive ridges. The conductive regions correspond to unconsolidated material saturated by hydrothermal fluids. Two of them are associated with partial flank collapses and may represent large reservoirs that could have played an important role during past eruptive events. The resistive ridges may represent massive andesite and are expected to constitute hydraulic barriers.
    Date Created:
    2014-01-01

  • Strain-optic coefficients of individual cladding modes of singlemode fibre: Theory and experiment

    Resource Type:
    Article
    Creator:
    Albert, Jacques and Chen, Chengkun
    Date Created:
    2006-09-05

  • Non-uniform-tilt-modulated fiber Bragg grating for temperature-immune micro-displacement measurement

    Resource Type:
    Article
    Creator:
    Chen, Chengkun, Guo, Tuan, and Albert, Jacques
    Date Created:
    2009-04-10

  • Single-frequency Er3+-doped silica-based planar waveguide laser with integrated photo-imprinted Bragg reflectors

    Resource Type:
    Article
    Creator:
    Hibino, Y., Kitagawa, T., Hill, K. O., Bilodeau, F., Jihnson, D. C., Malo, B., Theriault, S., Albert, Jacques, and Hattori, K.
    Abstract:
    Single-longitudinal-mode operation of Er3+-P2O5-codoped silica planar waveguide lasers which are equipped with integrated Bragg grating reflectors is demonstrated, with a polarized output of 340 μW at 1546 nm. The gratings are photo-imprinted using 193 nm light exposure through a phase mask in GeO2-free optical waveguides that have been sensitized by H2 loading.
    Date Created:
    1994-08-04

  • Enhanced photosensitivity in lightly doped standard telecommunication fibre exposed to high fluence ArF excimer laser light

    Resource Type:
    Article
    Creator:
    Hill, K. O., Albert, Jacques, Bilodeau, F., Johnson, D. C., Malo, B., and Theriault, S.
    Abstract:
    The core refractive index of Corning SMF-28 optical fibre exposed to ArF laser pulses increases with the square of the fluence per pulse. Bragg gratings with a refractive index modulation amplitude higher than 10 -3 have been obtained. This is an order of magnitude improvement over previously reported values for this type of fibre in the absence of treatment to enhance the photosensitivity.
    Date Created:
    1995-05-25

  • Effective index drift from molecular hydrogen diffusion in hydrogen-loaded optical fibres and its effect on Bragg grating fabrication

    Resource Type:
    Article
    Creator:
    Johnson, D. C., Malo, B., Albert, Jacques, Bilodeau, F., and Hill, K. O.
    Abstract:
    When hydrogen loading is used to enhance the photosensitivity of silica-based optical waveguides and fibres, the presence of molecular hydrogen dissolved in the glass matrix changes the effective index of propagation of guided optical modes by as much as 0.05%. Real-time monitoring of the reflectivity spectrum of Bragg gratings written in such conditions shows that the centre wavelength follows the changes in hydrogen concentration due to diffusion and reaction with glass defects.
    Date Created:
    1994-01-01

  • Chirped in-fibre Bragg grating dispersion compensators: Linearization of dispersion characteristic and demonstration of dispersion compensation in 100km, 10 Gbit/s optical fibre link

    Resource Type:
    Article
    Creator:
    Takiguchi, K., Johnson, D. C., Hill, K. O., Hagimoto, K., Kitagawa, T., Malo, B., Bilodeau, F., Theriault, S., Albert, Jacques, and Kataoka, T.
    Abstract:
    An apodized chirped in-fibre Bragg grating that has a linear dispersion characteristic is reported. The frequency components of an optical pulse (centre wavelength 1551 nm; 10 GHz bandwidth) incident on the grating are reflected with a relative delay that varies linearly from 0 to 130 ps across the spectral width of the pulse. The dispersion compensator is used to correct for the dispersion in a 100 km link (nondispersion shifted fibre) operating at a 10 Gbit/s transmission rate and a wavelength of 1551 nm.
    Date Created:
    1994-10-13

  • Apodised in-fibre Bragg grating reflectors photoimprinted using a phase mask

    Resource Type:
    Article
    Creator:
    Johnson, D. C., Theriault, S., Malo, B., Bilodeau, F., Hill, K. O., and Albert, Jacques
    Abstract:
    An apodized in-fibre Bragg grating reflector is fabricated using the phase mask photoimprinting technique. The reflector has a centre wavelength of 1550 nm, a bandwidth of 0.22 nm and a peak reflectivity of 90%. At 0.4 nm (50 GHz) from the centre wavelength the reflectivity is 40 dB lower than the peak reflectivity; this is an improvement of more than 20 dB over an unapodized Bragg grating reflector with similar bandwidth and peak reflectivity.
    Date Created:
    1995-02-02

  • A Systematic Approach for Variable Selection With Random Forests: Achieving Stable Variable Importance Values

    Resource Type:
    Article
    Creator:
    Banks, Sarah N., Millard, Koreen, Behnamian, Amir, White, Lori, Richardson, Murray, and Pasher, Jon
    Abstract:
    Random Forests variable importance measures are often used to rank variables by their relevance to a classification problem and subsequently reduce the number of model inputs in high-dimensional data sets, thus increasing computational efficiency. However, as a result of the way that training data and predictor variables are randomly selected for use in constructing each tree and splitting each node, it is also well known that if too few trees are generated, variable importance rankings tend to differ between model runs. In this letter, we characterize the effect of the number of trees (ntree) and class separability on the stability of variable importance rankings and develop a systematic approach to define the number of model runs and/or trees required to achieve stability in variable importance measures. Results demonstrate that both a large ntree for a single model run, or averaged values across multiple model runs with fewer trees, are sufficient for achieving stable mean importance values. While the latter is far more computationally efficient, both the methods tend to lead to the same ranking of variables. Moreover, the optimal number of model runs differs depending on the separability of classes. Recommendations are made to users regarding how to determine the number of model runs and/or trees that are required to achieve stable variable importance rankings.
    Date Created:
    2017-09-15

  • The Protean Challenge of Game Collections at Academic Libraries

    Resource Type:
    Article
    Creator:
    Cross, Emma, Smith, Robert, and Mould, David
    Abstract:
    The rise of game development and game studies on university campuses prompts academic libraries to consider how to support teaching and research in this area. This article examines current issues and challenges in the development of game collections at academic libraries. The gaming ecosystem has become more complex and libraries may need to move beyond collections largely based on console video games. This article will advance the discussion by considering emerging issues to support access to the full range of games. The article will use examples from Carleton University Library, Ottawa, which has been developing a game collection since 2008.
    Date Created:
    2015-01-01

  • Publishing graduate student research in geography: the fundamentals

    Resource Type:
    Article
    Creator:
    Ballamingie, Patricia and Tudin, Susan
    Date Created:
    2013-05-01

  • In the Company of my Peers: Implementation of RDA in Canada

    Resource Type:
    Article
    Creator:
    Riva, Pat, Cross, Emma, Andrews, Sue, Oliver, Chris, and Grover, Trina
    Abstract:
    This article describes the progress made toward implementing Resource Description and Access (RDA) in libraries across Canada, as of Fall 2013. Differences in the training experiences in the English-speaking cataloging communities and French-speaking cataloging communities are discussed. Preliminary results of a survey of implementation in English-Canadian libraries are included as well as a summary of the support provided for French-Canadian libraries. Data analysis includes an examination of the rate of adoption in Canada by region and by sector. Challenges in RDA training delivery in a Canadian context are identified, as well as opportunities for improvement and expansion of RDA training in the future.
    Date Created:
    2014-01-01

  • Adaptation and validation of an existing bottom-up model for simulating temporal and inter-dwelling variations of residential appliance and lighting demands

    Resource Type:
    Article
    Creator:
    Beausoleil-Morrison, Ian, Wills, A. D., and Ugursal, V. I.
    Abstract:
    The design and analysis of community-scale energy systems and incentives is a non-trivial task. The challenge of such undertakings is the well-documented uncertainty of building occupant behaviours. This is especially true in the residential sector, where occupants are given more freedom of activity compared to work environments. Further complicating matters is the dearth of available measured data. Building performance simulation tools are one approach to community energy analysis, however such tools often lack realistic models for occupant-driven demands, such as appliance and lighting (AL) loads. For community-scale analysis, such AL models must also be able to capture the temporal and inter-dwelling variation to achieve realistic estimates of aggregate electrical demand. This work adapts the existing Centre for Renewable Energy Systems Technology (CREST) residential energy model to simulate Canadian residential AL demands. The focus of the analysis is to determine if the daily, seasonal, and inter-dwelling variation of AL demands estimated by the CREST model is realistic. An in-sample validation is conducted on the model using 22 high-resolution measured AL demand profiles from dwellings located in Ottawa, Canada. The adapted CREST model is shown to broadly capture the variation of AL demand variations observed in the measured data, however seasonal variation in daily AL demand behaviour was found to be under-estimated by the model. The average and variance of daily load factors was found to be similar between measured and modelled. The model was found to under-predict the daily coincidence factors of aggregated demands, although the variance of coincident factors was shown to be similar between measured and modelled. A stochastic baseload input developed for this work was found to improve estimates of the magnitude and variation of both baseload and peak demands.
    Date Created:
    2017-09-05

  • Full-scale Atlas motion platform: structure, actuation, and control

    Resource Type:
    Article
    Creator:
    Hayes, M.J.D., Jung, B., Langlois, Robert, and Copeland, Z.
    Date Created:
    2016-01-01

  • Fast feature-based video segmentation and annotation

    Resource Type:
    Conference Proceeding
    Creator:
    Whitehead, Anthony D.
    Abstract:
    we present a method of segmenting video to detect cuts with accuracy equal to or better than both histogram and other feature based methods. As well, the method is faster than other feature based methods. By utilizing feature tracking on corners, rather than lines, we are able to reliably detect features such as cuts, fades and salient frames. Experimental evidence shows that the method is able to withstand high motion situations better than existing methods. Initial implementations using full sized video frames are able to achieve processing rates of 10-30 frames per second depending on the level of motion and number of features being tracked; this includes the time to generate the MPEG decompressed frames.
    Date Created:
    2003-01-01

  • Distributed storage in disruption tolerant network

    Resource Type:
    Conference Proceeding
    Creator:
    Nayak, Amiya, Du, Jingzhe, and Kranakis, Evangelos
    Abstract:
    We describe a novel Distributed Storage protocol in Disruption (Delay) Tolerant Networks (DTN). Since DTNs can not guarantee the connectivity of the network all the time, distributed data storage and look up has to be performed in a store-and-forward way. In this work, we define local distributed location regions which are called cells to facilitate the data storage and look up process. Nodes in a cell have high probability of moving within their cells. Our protocol resorts to storing data items in cells which have hierarchical structure to reduce routing information storage at nodes. Multiple copies of a data item may be stored at nodes to counter the adverse impact of the nature of DTNs. The cells are relatively stable regions and as a result, data exchange overheads among nodes are reduced. Through experimentation, we show that the proposed distributed storage protocol achieves higher successful data storage ratios with lower delays and limited data item exchange requirements than other protocols in the literature.
    Date Created:
    2010-08-27

  • On the role of the input power constraint in the beamforming optimality range in TIMO channels

    Resource Type:
    Conference Proceeding
    Creator:
    Yanikomeroglu, Halim and Al-Ahmadi, Saad
    Date Created:
    2009-10-19

  • Escherian Reflections on the Charter and Human Rights in Canada

    Resource Type:
    Article
    Creator:
    Mac Neil, Michael
    Date Created:
    2014-01-01

  • Continuous approximate synthesis of planar function-generators minimising the design error

    Resource Type:
    Article
    Creator:
    Guigue, Alexis and Hayes, M. John
    Abstract:
    It has been observed in the literature that as the cardinality of the prescribed discrete input-output data set increases, the corresponding four-bar linkages that minimise the Euclidean norm of the design and structural errors tend to converge to the same linkage. The important implication is that minimising the Euclidean norm, or any p-norm, of the structural error, which leads to a nonlinear least-squares problem requiring iterative solutions, can be accomplished implicitly by minimising that of the design error, which leads to a linear least-squares problem that can be solved directly. Apropos, the goal of this paper is to take the first step towards proving that as the cardinality of the data set tends towards infinity the observation is indeed true. In this paper we will integrate the synthesis equations in the range between minimum and maximum input values, thereby reposing the discrete approximate synthesis problem as a continuous one. Moreover, we will prove that a lower bound of the Euclidean norm, and indeed of any p-norm, of the design error for planar RRRR function-generating linkages exists and is attained with continuous approximate synthesis.
    Date Created:
    2016-07-01

  • An information driven hybrid evolutionary algorithm for optimal design of a Net Zero Energy House

    Resource Type:
    Article
    Creator:
    Bucking, Scott, Zmeureanu, Radu, and Athienitis, Andreas
    Abstract:
    Building Performance Simulation (BPS) is a powerful tool to estimate and reduce building energy consumption at the design stage. However, the true potential of BPS remains unrealized if trial and error simulation methods are practiced to identify combinations of parameters to reduce energy use of design alternatives. Optimization algorithms coupled with BPS is a process-orientated tool which identifies optimal building configurations using conflicting performance indicators. However, the application of optimization approaches to building design is not common practice due to time and computation requirements. This paper proposes a hybrid evolutionary algorithm which uses information gained during previous simulations to expedite and improve algorithm convergence using targeted deterministic searches. This technique is applied to a net-zero energy home case study to optimize trade-offs in passive solar gains and active solar generation using a cost constraint.
    Date Created:
    2013-08-27

  • Discussing stories: On how a dialogic reading intervention improves kindergartners' oral narrative construction

    Resource Type:
    Article
    Creator:
    Sénéchal, Monique and Lever, Rosemary
    Abstract:
    Oral narrative skills are assumed to develop through parent-child interactive routines. One such routine is shared reading. A causal link between shared reading and narrative knowledge, however, has not been clearly established. The present research tested whether an 8-week shared-reading intervention enhanced the fictional narrative skills of children entering formal education. Dialogic reading, a shared reading activity that involves elaborative questioning techniques, was used to engage children in oral interaction during reading and to emphasize elements of story knowledge. Forty English-speaking five- and six-year-olds were assigned to either the dialogic-reading or an alternative-treatment group. ANCOVA results found that the dialogic-reading children’s post-test narratives were significantly better on structure and context measures than those for the alternative-treatment children, but results differed for produced or retold narratives. The dialogic-reading children also showed expressive vocabulary gains. Overall, this study concretely determined that aspects of fictional narrative construction knowledge can be learned from interactive book reading.
    Date Created:
    2011-01-01

  • Techno-economic assessment of photovoltaic (PV) and building integrated photovoltaic/thermal (BIPV/T) system retrofits in the Canadian housing stock

    Resource Type:
    Article
    Creator:
    Ugursal, V. Ismet, Beausoleil-Morrison, Ian, Nikoofard, Sara, and Asaee, S. Rasoul
    Abstract:
    Techno-economic impact of retrofitting houses in the Canadian housing stock with PV and BIPV/T systems is evaluated using the Canadian Hybrid End-use Energy and Emission Model. Houses with south, south-east and south-west facing roofs are considered eligible for the retrofit since solar irradiation is maximum on south facing surfaces in the northern hemisphere. The PV system is used to produce electricity and supply the electrical demand of the house, with the excess electricity sold to the grid in a net-metering arrangement. The BIPV/T system produces electricity as well as thermal energy to supply the electrical as well as the thermal demands for space and domestic hot water heating. The PV system consists of PV panels installed on the available roof surface while the BIPV/T system adds a heat pump, thermal storage tank, auxiliary heater, domestic hot water heating equipment and hydronic heat delivery system, and replaces the existing heating system in eligible houses. The study predicts the energy savings, GHG emission reductions and tolerable capital costs for regions across Canada. Results indicate that the PV system retrofit yields 3% energy savings and 5% GHG emission reduction, while the BIPV/T system yields 18% energy savings and 17% GHG emission reduction in the Canadian housing stock. While the annual electricity use slightly increases, the fossil fuel use of the eligible houses substantially decreases due to BIPV/T system retrofit.
    Date Created:
    2017-10-01

  • Micro-cogeneration versus conventional technologies: Considering model uncertainties in assessing the energy benefits

    Resource Type:
    Article
    Creator:
    Johnson, Geoffrey, Beausoleil-Morrison, Ian, and Wills, Adam
    Abstract:
    Fuel cells with nominal outputs of approximately 1kW AC are emerging as a prime-mover of a micro-cogeneration system potentially well-suited to compete, on an energy basis, with conventional methods for satisfying occupant electrical and thermal demands in a residential application. As the energy benefits of these systems can be incremental when compared to efficient conventional methods, it is especially important to consider the uncertainties of the models on which simulation results are based. However, researchers have yet to take this aspect into account.This article makes a contribution by demonstrating how these model uncertainties may be propagated to the simulation results of a micro-cogeneration system for comparison to a reference scenario using a case study. This case study compares the energy performance of a fuel-cell based micro-cogeneration system serving only domestic hot water demands to an efficient reference scenario where the conventional methods for providing electrical and thermal demands are considered to be a central gas-fired combined-cycle plant and a condensing tankless water heater respectively. The simulation results demonstrated that if model uncertainties were ignored, it would have been possible to demonstrate that the considered micro-cogeneration system was more efficient than the reference scenario for average consumption levels of domestic hot water. However, when model uncertainties were considered, the efficiency of the considered micro-cogeneration system could not reliably exceed that of the reference scenario by serving the domestic hot water needs of a single-family home.
    Date Created:
    2017-03-05

  • Electrical-end-use data from 23 houses sampled each minute for simulating micro-generation systems

    Resource Type:
    Article
    Creator:
    Beausoleil-Morrison, Ian and Johnson, Geoffrey
    Abstract:
    An improved understanding of the consumption patterns, end-uses, and temporal variations of electrical loads in houses is warranted because a significant fraction of a society's total electricity consumption occurs within residential buildings. In general, there is a lack of high-temporal-resolution data describing occupant electrical consumption that are available to researchers in this field. To address this, new measurements were performed and combined with data emanating from an earlier study to provide a database of annual measurements for 23 houses at a 1-min resolution that characterizes whole-house, non-HVAC, air conditioner, and furnace fan electrical draws, as well as the draw patterns of some major appliances. All houses were located in Ottawa, Canada. The non-HVAC measurements of this 23-house sample were shown to be in agreement with published estimates for the housing stock. The furnace fan was found to be the most significant end-use. These high-temporal-resolution data of electrical demands in houses can be used by researchers to increase the fidelity of building performance simulation analyses of different micro-generation technologies in residential buildings.
    Date Created:
    2017-03-05

  • Techno-economic feasibility evaluation of air to water heat pump retrofit in the Canadian housing stock

    Resource Type:
    Article
    Creator:
    Beausoleil-Morrison, Ian, Asaee, S. Rasoul, and Ugursal, V. Ismet
    Abstract:
    This study was conducted to assess the techno-economic feasibility of converting the Canadian housing stock (CHS) into net/near zero energy buildings by introducing and integrating high efficient and renewable/alternative energy technologies in new construction and existing houses. Performance assessment of energy retrofit and renewable/alternative energy technologies in existing houses in regional and national scale is necessary to devise feasible strategies and incentive measures. The Canadian Hybrid Residential End-Use Energy and GHG Emissions model (CHREM) that utilizes a bottom-up modeling approach is used to investigate the techno-economic feasibility of air to water heat pump retrofit in the Canadian housing stock. The proposed energy retrofit includes an air to water heat pump, auxiliary boiler, thermal storage tank, hydronic heat delivery and domestic hot water (DHW) heating. Energy savings, GHG emission changes and economic feasibility of the air source heat pump retrofit are considered in this study. Results show that there is a potential to reduce 36% of energy consumption and 23% of GHG emissions of the CHS if all eligible houses undertake the retrofit. Economic analysis indicates that the feasibility of air to water heat pump systems is strongly affected by the current status of primary energy use for electricity generation and space and DHW heating as well as energy prices and economic conditions. Legislation, economic incentives and education for homeowners are necessary to enhance the penetration level of air to water heat pump retrofits in the CHS.
    Date Created:
    2017-01-25

  • Distributed evolutionary algorithm for co-optimization of building and district systems for early community energy masterplanning

    Resource Type:
    Article
    Creator:
    Bucking, Scott and Dermardiros, Vasken
    Abstract:
    Buildings play a significant role in climate change mitigation. In North America, energy used to construct and operate buildings accounts for some 40% of total energy use, largely originating from fossil fuels. The strategic reduction of these energy demands requires knowledge of potential upgrades prior to a building's construction. Furthermore, renewable energy generation integrated into buildings façades and district systems can improve the resiliency of community infrastructure. However, loads that are non-coincidental with on-site generation can cause load balancing issues. This imbalance is typically due to solar resources peaking at noon, whereas building loads typically peak in the morning and late afternoon or evenings. Ideally, the combination of on-site generation and localized storage could remedy such load balancing issues while reducing the need for fossil fuels. In response to these issues, this paper contributes a methodology that co-optimizes building designs and district technologies as an integrated community energy system. A distributed evolutionary algorithm is proposed that can navigate over 10154 potential community permutations. This is the first time in literature that a methodology demonstrates the co-optimization of buildings and district energy systems to reduce energy use in buildings and balance loads at this scale. The proposed solution is reproducible and scalable for future community masterplanning studies.
    Date Created:
    2018-02-01

  • Techno-economic assessment of solar assisted heat pump system retrofit in the Canadian housing stock

    Resource Type:
    Article
    Creator:
    Beausoleil-Morrison, Ian, Asaee, S. Rasoul, and Ugursal, V. Ismet
    Abstract:
    The techno-economic feasibility of retrofitting existing Canadian houses with solar assisted heat pump (SAHP) is investigated. The SAHP architecture is adopted from previous studies conducted for the Canadian climate. The system utilizes two thermal storage tanks to store excess solar energy for use later in the day. The control strategy is defined in order to prioritise the use of solar energy for space and domestic hot water heating purposes. Due to economic and technical constraints a series of eligibility criteria are introduced for a house to qualify for the retrofit. A model was built in ESP-r and the retrofit was introduced into all eligible houses in the Canadian Hybrid Residential End-Use Energy and GHG Emissions model. Simulations were conducted for an entire year to estimate the annual energy savings, and GHG emission reductions. Results show that the SAHP system performance is strongly affected by climatic conditions, auxiliary energy sources and fuel mixture for electricity generation. Energy consumption and GHG emission of the Canadian housing stock can be reduced by about 20% if all eligible houses receive the SAHP system retrofit. Economic analysis indicates that the incentive measures will likely be necessary to promote the SAHP system in the Canadian residential market.
    Date Created:
    2017-01-01

  • Peter the Venerable and Secular Friendships

    Resource Type:
    Article
    Creator:
    Saurette, Marc
    Date Created:
    2010-02-02

  • Non enim ab hiis que sensus est iudicare sensum. Sensation and Thought in Theaetetus, Plotinus and Proclus

    Resource Type:
    Article
    Creator:
    MacIsaac, Gregory
    Abstract:
    I examine the relation between sensation and discursive thought (dianoia) in Plato, Plotinus, and Proclus. In Theaetetus, a soul whose highest faculty was sensation would have no unified experience of the sensible world, lacking universal ideas to give order to the sensible flux. It is implied that such universals are grasped by the soul's thinking. In Plotinus the soul is not passive when it senses the world, but as the logos of all things it thinks the world through its own forms. Proclus argues against the derivation of universal logoi from the senses, which alone can't make the sensible world comprehensible. At most they give a record of the original sense-impression in its particularity. The soul's own projected logoi give the sensible world stability. For Proclus, bare sensation does not depend on thought, but a unified experience of the sense-world depends on its paradigmatic logoi in our souls.
    Date Created:
    2014-01-01

  • Low temperature plasma etching for Si3 N4 waveguide applications

    Resource Type:
    Article
    Creator:
    Vandusen, R., Tarr, Gary, Waldron, P. D., Celo, Dritan, Smy, Tom, and Albert, Jacques
    Date Created:
    2008-03-10

  • Fabrication of a variable diffraction efficiency phase mask by multiple dose ion implantation

    Resource Type:
    Article
    Creator:
    Johnson, D. C., Champion, H. G., Erickson, L. E., Hill, K. O., Malo, B., Theriault, S., Bilodeau, F., and Albert, Jacques
    Abstract:
    A variable diffraction efficiency phase mask is produced by focused ion beam, implanting a grating pattern into a fused SiO 2 substrate with a 100-nm-diam, 200keV Si beam. The substrate is prepared by cleaning and coating with a 20-nm-thick film of Al to dissipate the ion charge. The pattern consists of 930 lines, each 80μm long, at a pitch of 1.075μm, to obtain a 1-mm-long grating. The substrate is wet etched in a 1M% HF solution for about 45min to produce a phase mask with the desired diffraction efficiency. This phase mask is used to photoimprint Bragg gratings into standard hydrogenated single-mode telecommunication fibers using 193nm light from an ArF laser.
    Date Created:
    1995-11-01

  • Environmental controls of frost cracking revealed through in situ acoustic emission measurements in steep bedrock

    Resource Type:
    Article
    Creator:
    Girard, Lucas, Gruber, Stephan, Weber, Samuel, and Beutel, Jan
    Abstract:
    Frost cracking, the breakdown of rock by freezing, is one of the most important mechanical weathering processes acting on Earth's surface. Insights on the mechanisms driving frost cracking stem mainly from laboratory and theoretical studies. Transferring insights from such studies to natural conditions, involving jointed bedrock and heterogeneous thermal and hydrological properties, is a major challenge. We address this problem with simultaneous in situ measurements of acoustic emissions, used as proxy of rock damage, and rock temperature/moisture content. The 1 year data set acquired in an Alpine rock wall shows that (1) liquid water content has an important impact on freezing-induced rock damage, (2) sustained freezing can yield much stronger damage than repeated freeze-thaw cycling, and (3) that frost cracking occurs over the full range of temperatures measured extending from 0 down to -15°C. These new measurements yield a slightly different picture than previous field studies where ice segregation appears to play an important role. Key PointsRock liquid water content has an important impact on the freezing-induced damageSustained freezing can yield stronger damage than repeated freeze-thaw cyclingFrost cracking occurs on a wide range of temperatures extending from 0 to -15C
    Date Created:
    2013-05-16

  • Analysis of Piezoelectric Ice Protection Systems Combined with Ice-Phobic Coatings

    Resource Type:
    Article
    Creator:
    Pommier-Budinger, Valerie, Tepylo, Nicolas, Budinger, Marc, and Huang, Xiao
    Abstract:
    The aeronautics industry is looking for ice protection systems consuming less energy. Electromechanical and especially piezoelectric solutions are a promising area of research for reducing average consumptions. This article provides an analytical model of a simple structure to assess the power and voltage required to obtain the delamination of the accumulated layer of ice at the support/ice interface. This model also allows analyzing the impact of the resonance frequencies used for supplying piezoelectric actuators on the tensile stress into PZT materials. Finally, this article assesses the effect of different ice - phobic coatings combined with piezoelectric ice protection systems. Experimental measurements of ice adhesion for different ice - phobic coatings allow evaluating the shear stress at which ice is detached from the surface. These results are then used to estimate - thanks to the proposed analytical model - the additional gain of power that would be provided by the use of such coatings.
    Date Created:
    2016-06-10

  • Field-assisted patterned dissolution of silver nanoparticles in phosphate glass

    Resource Type:
    Article
    Creator:
    Albert, Jacques and Andreyuk, Alexander
    Abstract:
    Phosphate glass samples doped with silver ions through a Na+-Ag+ ion-exchange process were treated in a hydrogen atmosphere at temperatures near 430 °C for durations ranging from 4 to 5 h. Such treatment causes metallic silver precipitation at the surface as well as nanoclustering of silver atoms under the surface under conditions very similar to those used for silicate glasses. The presence of silver clusters resulted in a characteristic coloring of the glass and was verified by the observation of a plasmon resonance peak near 410-420 nm in the absorption spectra. Applying a DC voltage between 1.4 and 2 kV at temperatures between 120 and 130 °C led to dissolution of the clusters in the area under the positive electrode, thereby bleaching the glass color. The use of a patterned doped-silicon electrode further led to the formation of a 300 nm thick surface relief on the glass surface and of a volume complex permittivity grating extending at least 4 μm under the surface. Such volume complex refractive index gratings may find applications in passive or active (laser) photonic devices in rare-earth doped phosphate glasses, where conventional bulk grating formation techniques have limited applicability.
    Date Created:
    2014-01-01

  • Strong Bragg gratings in phosphate glass single mode fiber

    Resource Type:
    Article
    Creator:
    Temyanko, V. L., Honkanen, S., Schülzgen, A., Albert, Jacques, and Peyghambarian, N.
    Date Created:
    2006-09-15

  • Maskless writing of submicrometer gratings in fused silica by focused ion beam implantation and differential wet etching

    Resource Type:
    Article
    Creator:
    Brebner, J. L., Bilodeau, F., Hill, K. O., Malo, B., Albert, Jacques, Templeton, I. M., and Johnson, D. C.
    Date Created:
    1993-12-01

  • Formation and bleaching of strong ultraviolet absorption bands in germanium implanted synthetic fused silica

    Resource Type:
    Article
    Creator:
    Trudeau, Y. B., Brebner, J. L., Hill, K. O., Kajrys, G., Albert, Jacques, Johnson, D. C., and Malo, B.
    Abstract:
    Germanium ions have been implanted in fused silica using ion beams having energies of 3 and 5 MeV and doses ranging from 1×1012 to 5×1014 ions/cm2. For wavelengths shorter than 400 nm, the optical absorption increases strongly with two absorption bands appearing at 244 and 212 nm. The ion-induced optical absorption can be bleached almost completely by irradiation with 249 nm excimer laser light. Ion implantation also increases the refractive index of silica near the substrate surface. At 632.8 nm a refractive index increase of more than 10-2 has been measured. This decreases by 4×10-3 upon bleaching with 249 nm light.
    Date Created:
    1992-12-01

  • Au-coated tilted fiber Bragg grating twist sensor based on surface plasmon resonance

    Resource Type:
    Article
    Creator:
    Zhou, Wenjun, Albert, Jacques, Zhang, Yang, and Shen, Changyu
    Abstract:
    A fiber twist sensor based on the surface plasmon resonance (SPR) effect of an Au-coated tilted fiber Bragg grating (TFBG) is proposed. The SPR response to the twist effect on an Au-coated TFBG (immersing in distilled water) is studied theoretically and experimentally. The results show that the transmission power around the wavelength of SPR changes with the twist angle. For the twist ranging from 0° to 180° in clockwise or anti-clockwise directions, the proposed sensor shows sensitivities of 0.037 dBm/° (S-polarized) and 0.039 dBm/° (P-polarized), which are almost 7.5 times higher than that of the current similar existing twist sensor.
    Date Created:
    2014-01-01

  • Ion implantation-induced strong photosensitivity in high-purity fused silica: Correlation of index changes with VUV color centers

    Resource Type:
    Article
    Creator:
    Brebner, J. L., Albert, Jacques, Allard, L. B., and Verhaegen, M.
    Abstract:
    We have studied optical changes induced by ArF (6.4 eV/193 nm) excimer laser light illumination of high purity SiO2 implanted with Si2+ (5 MeV) at a fluence of 1015 ions/cm2. Optical absorption was measured from 3 eV (400 nm) to 8 eV (155 nm) and showed evidence of several well-defined absorption bands. A correlation in the bleaching behavior appears to exist between the so-called D band (located at 7.15 eV) and the well-known B2α band which is attributed to oxygen vacancies. Changes in the refractive index as a function of ArF illumination were measured and found to be in good quantitative agreement with a Kramers-Kronig analysis of the optical absorption data.
    Date Created:
    1996-12-01

  • Potassium and silver ion-exchanged dual-core glass waveguides with gratings

    Resource Type:
    Article
    Creator:
    Leonelli, R., Albert, Jacques, Li, M. J., Najafi, S. I., Honkanen, S., and Wang, W. J.
    Abstract:
    A two-step double ion-exchange process is employed to produce dual-core waveguides in glass. First, potassium ion exchange is carried out at 400°C. Then, silver ion exchange is performed at 300°C. The fabricated waveguides have low losses, large single-mode regions, and more symmetrical profiles than single ion-exchanged waveguides. Etched gratings are also made in dual-core waveguides. Very high efficiencies are demonstrated in these waveguides.
    Date Created:
    1991-12-01

  • Hacking with Multi-touch for Java (MT4j)

    Resource Type:
    Conference Proceeding
    Creator:
    Noble, James, Marshall, Stuart, Anslow, Craig, and Biddle, Robert
    Abstract:
    Developing applications for touch devices is hard. Developing touch based applications for multi-user input is harder. The Multi-Touch for Java (MT4j) toolkit supports developing touch based applications for multiple users. In this paper, we outline our experience using MT4j for developing a number of software applications to support developers working in co-located teams. Our experience using the toolkit will help developers to understand the nuances of the toolkit and design issues that can be applied to other toolkits for developing multi-user touch based applications.
    Date Created:
    2016-10-21

  • Facebooking in "face": Complex identities meet simple databases

    Resource Type:
    Conference Proceeding
    Creator:
    Brubaker, Jed R., Handel, Mark, Yarosh, Svetlana, Bivens, Rena, Haimson, Oliver L., and Lingel, Jessa
    Abstract:
    Online systems often struggle to account for the complicated self-presentation and disclosure needs of those with complex identities or specialized anonymity. Using the lenses of gender, recovery, and performance, our proposed panel explores the tensions that emerge when the richness and complexity of individual personalities and subjectivities run up against design norms that imagine identity as simplistic or one-dimensional. These models of identity not only limit the ways individuals can express their own identities, but also establish norms for other users about what to expect, causing further issues when the inevitable dislocations do occur. We discuss the challenges in translating identity into these systems, and how this is further marred by technical requirements and normative logics that structure cultures and practices of databases, algorithms and computer programming.
    Date Created:
    2015-01-01

  • Object-level recombination of commodity applications

    Resource Type:
    Conference Proceeding
    Creator:
    Foster, Blair and Somayaji, Anil
    Abstract:
    This paper presents ObjRecombGA, a genetic algorithm framework for recombining related programs at the object file level. A genetic algorithm guides the selection of object files, while a robust link resolver allows working program binaries to be produced from the object files derived from two ancestor programs. Tests on compiled C programs, including a simple web browser and a well-known 3D video game, show that functional program variants can be created that exhibit key features of both ancestor programs. This work illustrates the feasibility of applying evolutionary techniques directly to commodity applications. Copyright 2010 ACM.
    Date Created:
    2010-08-27

  • Multiple password interference in text passwords and click-based graphical passwords

    Resource Type:
    Conference Proceeding
    Creator:
    Van Oorschot, Paul C., Biddle, Robert, Forget, Alain, Chiasson, Sonia, and Stobert, Elizabeth
    Abstract:
    The underlying issues relating to the usability and security of multiple passwords are largely unexplored. However, we know that people generally have difficulty remembering multiple passwords. This reduces security since users reuse the same password for different systems or reveal other passwords as they try to log in. We report on a laboratory study comparing recall of multiple text passwords with recall of multiple click-based graphical passwords. In a one-hour session (short-term), we found that participants in the graphical password condition coped significantly better than those in the text password condition. In particular, they made fewer errors when recalling their passwords, did not resort to creating passwords directly related to account names, and did not use similar passwords across multiple accounts. After two weeks, participants in the two conditions had recall success rates that were not statistically different from each other, but those with text passwords made more recall errors than participants with graphical passwords. In our study, click-based graphical passwords were significantly less susceptible to multiple password interference in the short-term, while having comparable usability to text passwords in most other respects. Copyright 2009 ACM.
    Date Created:
    2009-12-01

  • A Liberal China policy for Canada’s majority Conservative administration?

    Resource Type:
    Article
    Creator:
    Kovalio, Jacob
    Date Created:
    2001-07-01

  • UML consistency rules: a systematic mapping study

    Resource Type:
    Report
    Creator:
    Labiche, Yvan, Genero, Marcela, and Torre, Damiano
    Abstract:
    Context: The Unified Modeling Language (UML), with its 14 different diagram types, is the de-facto standard tool for objectoriented modeling and documentation. Since the various UML diagrams describe different aspects of one, and only one, software under development, they are not independent but strongly depend on each other in many ways. In other words, the UML diagrams describing a software must be consistent. Inconsistencies between these diagrams may be a source of the considerable increase of faults in software systems. It is therefore paramount that these inconsistencies be detected, analyzed and hopefully fixed. Objective: The aim of this article is to deliver a comprehensive summary of UML consistency rules as they are described in the literature to date to obtain an extensive and detailed overview of the current research in this area. Method: We performed a Systematic Mapping Study by following well-known guidelines. We selected 94 primary studies from a search with seven search engines performed in December 2012. Results: Different results are worth mentioning. First it appears that researchers tend to discuss very similar consistency rules, over and over again. Most rules are horizontal (98.07%) and syntactic (88.03%). The most used diagrams are the class diagram (71.28%), the state machine diagram (42.55%) and the sequence diagram (47.87%). Conclusion: The fact that many rules are duplicated in primary studies confirms the need for a well accepted list of consistency rules. This paper is a first step in this direction. Results indicate that much more work is needed to develop consistency rules for all 14 UML diagrams, in all dimensions of consistency (e.g., semantic and syntactic on the one hand, horizontal, vertical and evolution on the other hand).
    Date Created:
    2014-01-01

  • Multi-objective construction of an entire adequate test suite for an EFSM

    Resource Type:
    Report
    Creator:
    Labiche, Yvan and Asoudeh, Nesa
    Abstract:
    In this paper we propose a method and a tool to generate test suites from extended finite state machines, accounting for multiple (potentially conflicting) objectives. We aim at maximizing coverage and feasibility of a test suite while minimizing similarity between its test cases and minimizing overall cost. Therefore, we define a multi-objective genetic algorithm that searches for optimal test suites based on four objective functions. In doing so, we create an entire test suite at once as opposed to test cases one at a time. Our approach is evaluated on two different case studies, showing interesting initial results.
    Date Created:
    2013-10-01

  • An orchestrated survey of available algorithms and tools for Combinatorial Testing

    Resource Type:
    Report
    Creator:
    Labiche, Yvan and Khalsa, Sunint Kaur
    Abstract:
    For functional testing based on the input domain of a functionality, parameters and their values are identified and a test suite is generated using a criterion exercising combinations of those parameters and values. Since software systems are large, resulting in large numbers of parameters and values, a technique based on combinatorics called Combinatorial Testing (CT) is used to automate the process of creating those combinations. CT is typically performed with the help of combinatorial objects called Covering Arrays. The goal of the present work is to determine available algorithms/tools for generating a combinatorial test suite. We tried to be as complete as possible by using a precise protocol for selecting papers describing those algorithms/tools. The 75 algorithms/tools we identified are then categorized on the basis of different comparison criteria, including: the test suite generation technique, the support for selection (combination) criteria, mixed covering array, the strength of coverage, and the support for constraints between parameters. Results can be of interest to researchers or software companies who are looking for a CT algorithm/tool suitable for their needs.
    Date Created:
    2014-01-01

  • Forced Retirement Risk and Portfolio Choice

    Resource Type:
    Research Paper
    Creator:
    Nam, Tong-yob, Lee, Minjoon, and Chen, Guodong
    Date Created:
    2018-08-12

  • Critical Success Factors in Technology Transfer from Government Laboratories to Private Sector

    Resource Type:
    Article
    Creator:
    Kumar, Uma and Uruthirapathy, Aareni
    Abstract:
    Each year the Canadian government allocates a significant amount of money for science and technology. A major portion of this allocation goes for R& D. In order to enjoy adequate return, technologies that are developed in Canadian federal labs need to be transferred to the public effectively. There are critical factors in technology transfer which play a key role in determining the effectiveness of this transfer process. This study examines the technical, organizational, and people factors which can enhance technology transfer from government laboratories.
    Date Created:
    2007-11-01

  • Combining Static and Dynamic Analyses to Reverse-Engineer Scenario Diagrams

    Resource Type:
    Report
    Creator:
    Kolbah, Bojana and Labiche, Yvan
    Abstract:
    This paper discusses reverse engineering source code to produce UML sequence diagrams, with the aim to aid program comprehension and other software life cycle activities (e.g., verification). As a first step we produce scenario diagrams using the UML sequence diagram notation. We build on previous work, now combining static and dynamic analyses of a Java software, our objective being to obtain a lightweight instrumentation and therefore disturb the software behaviour as little as possible. We extract the control flow graph from the software source code and obtain an execution trace by instrumenting and running the software. Control flow and trace information is represented as models and UML scenario diagram generation becomes a model transformation problem. Our validation shows that we indeed reduce the execution overhead inherent to dynamic analysis, without losing in terms of the quality of the reverse-engineered information, and therefore in terms of the usefulness of the approach (e.g., for program comprehension).
    Date Created:
    2011-09-01

  • On the Effectiveness of Contracts as Test Oracles in the Detection and Diagnosis of Faults in Concurrent Object-Oriented Software

    Resource Type:
    Report
    Creator:
    Araujo, Wladimir, Briand, Lionel Claude, and Labiche, Yvan
    Abstract:
    Design by Contract (DbC) is a software development methodology that focuses on clearly defining the interfaces between components to produce better quality object-oriented software. The idea behind DbC is that a method defines a contract stating the requirements a client needs to fulfill to use it, the precondition, and the properties it ensures after its execution, the postcondition. Though there exists ample support for DbC for sequential programs, applying DbC to concurrent programs presents several challenges. Using Java as the target programming language, this paper tackles such challenges by augmenting the Java Modelling Language (JML) and modifying the JML compiler to generate Runtime Assertion Checking (RAC) code to support DbC in concurrent programs. We applied our solution in a carefully designed case study on a highly concurrent industrial software system from the telecommunications domain to assess the effectiveness of contracts as test oracles in detecting and diagnosing functional faults in concurrent software. Based on these results, clear and objective requirements are defined for contracts to be effective test oracles for concurrent programs whilst balancing the effort to design them. Main results include that contracts of a realistic level of completeness and complexity can detect around 76% of faults and reduce the diagnosis effort for such faults by at least ten times. We, therefore, show that DbC can not only be applied to concurrent software but can also be a valuable tool to improve the economics of software engineering.
    Date Created:
    2013-09-01

  • John Gilmour's Insider Art

    Resource Type:
    Article
    Creator:
    Miller, James D. and Johnston-Miller, Mary
    Date Created:
    2013-10-11

  • Sustainable Energy Options for the Future of MoCreebec Eeyoud - November 2019

    Resource Type:
    Article
    Creator:
    Russell, Joshua, Coady, Joseph, Schott, Stephan, Duquette, Jean, Lafreniere, Keelia, and Chabot, Jean-Pierre
    Date Created:
    2019-11-01

  • 16 Schools, $150,000 and 9 days: Experimenting with the Patron Driven Acquisition Model in a Consortial Environment

    Resource Type:
    Conference Proceeding
    Creator:
    Neely, Colleen, Davis, Kate, Jin, Lei, and Rykse, Harriet
    Abstract:
    Presented at Electronic Resources & Libraries Conference, Austin, TX, February 28, 2011.
    Date Created:
    2011-02-28

  • The Lansdowne Live Community Development Project: Ottawas Bid to Commercialize Public Space

    Resource Type:
    Conference Proceeding
    Creator:
    Hilton, Robert, Stoney, Christopher, and Shepherd, Robert
    Date Created:
    2010-06-01

  • Upper Canada and the Mapping of Settler Space

    Resource Type:
    Conference Proceeding
    Creator:
    Walsh, John C.
    Date Created:
    2011-05-31

  • The benefits of an Enrichment Mini Course for millennials in the library’s Discovery Centre

    Resource Type:
    Article
    Creator:
    Tudin, Susan
    Abstract:
    Every year, for over three decades, Carleton University in Ottawa, Ontario has participated with other local educational institutions in providing a week-long instruction program that introduces young students to higher education. Highly motivated participants in grades 8 – 11 and numbering over 3,000 attend from several school boards in both eastern Ontario and western Quebec. The Enriched Mini Course Program has become an important recruitment tool for each institution, and at Carleton University, over 50 enriched mini courses are offered including one recent addition by the MacOdrum library staff. In this article, the author recounts how leading an enriched mini course for millennials in the university library's new Discovery Centre is an innovative initiative that demonstrates the significance of the academic library in the local community, and how staff collaboration helps to develop team building and positive vibes with the millennials.
    Date Created:
    2016-07-01

  • Robert Lewis Griffiths

    Resource Type:
    Book
    Creator:
    Griffiths, Naomi E.S.
    Abstract:
    First edition published on the occasion of an exhibition of R.L. Griffith's paintings at Wallack Galleries in Ottawa: The Estate Collection: Pleasure and Solace, works by Robert Lewis Griffiths.
    Date Created:
    2015-11-18

  • Influencing users towards better passwords: Persuasive cued click-points

    Resource Type:
    Conference Proceeding
    Creator:
    Chiasson, Sonia, Forget, Alain, Biddle, Robert, and Van Oorschot, Paul C.
    Abstract:
    Usable security has unique usability challenges because the need for security often means that standard human-computerinteraction approaches cannot be directly applied. An important usability goal for authentication systems is to support users in selecting better passwords, thus increasing security by expanding the effective password space. In click-based graphical passwords, poorly chosen passwords lead to the emergence of hotspots ' portions of the image where users are more likely to select click-points, allowing attackers to mount more successful dictionary attacks. We use persuasion to influence user choice in click-based graphical passwords, encouraging users to select more random, and hence more secure, click-points. Our approach is to introduce persuasion to the Cued Click-Points graphical password scheme (Chiasson, van Oorschot, Biddle, 2007). Our resulting scheme significantly reduces hotspots while still maintaining its usability.
    Date Created:
    2008-01-01

  • Documents on Canadian external relations: the Arctic, 1874-1949

    Resource Type:
    Book
    Creator:
    Kropf, Joel and Cavell, Janice
    Abstract:
    “The first volume of Documents on Canadian External Relations was published in 1967, as Canada celebrated its first century of nationhood. Since then, volumes in this series have dealt with various periods in the history of Canadian foreign policy, from the Laurier era up to the Pearson years in government. The series currently includes 29 regular volumes and has reprinted over 20,000 documents, totalling almost 40,000 pages of text, making it the largest historical documentary project in Canada. The subject of this special volume, the Arctic, has an ever-growing importance for Canada as we approach our federation's 150th anniversary. This volume illuminates how and why Canada asserted its sovereignty over the Far North between 1874 and 1949, and it demonstrates how much Canadians today owe to the nation builders of the past”--Preface, p. [vi].
    Date Created:
    2016-01-01

  • Multi-objective optimal design of a near net zero energy solar house

    Resource Type:
    Conference Proceeding
    Creator:
    Bucking, Scott, Zmeureanu, Radu, and Athienitis, Andreas
    Abstract:
    This paper presents a multi-objective redesign case study of an archetype solar house based on a near net zero energy (NZE) demonstration home located in Eastman, Quebec. Using optimization techniques, pathways are identified from the original design to both cost and energy optimal designs. An evolutionary algorithm is used to optimize trade-offs between passive solar gains and active solar generation, using two objective functions: net-energy consumption and life-cycle cost over a thirty-year life cycle. In addition, this paper explores different pathways to net zero energy based on economic incentives, such as feed-in tariffs for on-site electricity production from renewables. The main objective is to identify pathways to net zero energy that will facilitate the future systematic design of similar homes based on the concept of the archetype that combines passive solar design; energy-efficiency measures, including a geothermal heat pump; and a building-integrated photovoltaic system. Results from this paper can be utilized as follows: (1) systematic design improvements and applications of lessons learned from a proven NZE home design concept, (2) use of a methodology to understand pathways to cost and energy optimal building designs, and (3) to aid in policy development on economic incentives that can positively influence optimized home design.
    Date Created:
    2014-01-01

  • Exhibits and Events at MacOdrum Library: A Practical Guide

    Resource Type:
    Other
    Creator:
    Draayer, Ingrid
    Abstract:
    This guide combines the knowledge gathered during my long career coordinating the Carleton University Library exhibits program and my recent sabbatical research on exhibits and events in academic libraries. Between 1983, when I was hired as Exhibits Librarian at Carleton University Library, and 2002, when the Library had little space available for exhibits and I became Head of Access Services, I was responsible for running the Library’s exhibits program. After the latest renovation to MacOdrum Library was completed in the Fall of 2013 and included dedicated space for exhibits, I was once again asked to coordinate and produce exhibits for the Library. During my 2014/2015 sabbatical I investigated the current state of exhibits and events in academic libraries through literature and Web searches and site visits to a number of universities. The end result is this guide, which I hope is both practical and inspirational.
    Date Created:
    2015-09-10

  • A Critical Review of the False Dichotomy Surrounding the Iowa Gambling Task. Technical Report 2016-01

    Resource Type:
    Report
    Creator:
    Humeny, Courtney
    Abstract:
    The debate surrounding how emotion and c ognition are organized in the brain often lead s to Damasio’s Somatic Marker Hypothesis. This theory endorses a highly interactive process between emotion and cognition, but has been criticized for being too broad to capture the specific links between the t wo. It also implies that emotion operates from a neural architecture that is dissociable from cognition. Although empirical findings from the Iowa Gambling Task lend support for the theory, this can promote a false dichotomy between emotion and cognition. Issues will be raised regarding the view that the theory and the task are ill - formulated to account for the phases of decision making. Further theoretical work may be required to align the task with Damasio’s view of emotion as integrated with cognition.
    Date Created:
    2016-01-05

  • Timescapes: Putting history in your hip pocket

    Resource Type:
    Conference Proceeding
    Creator:
    Opp, James and Whitehead, Anthony D.
    Abstract:
    In this work we discuss our efforts to use the ubiquity of smart phone systems and the mobility they provide to stream historical information about your current place on the earth to the end user. We propose the concept of timescapes to portray this historical significance of where they are standing and allow a brief travel through time. By combining GPS location, with a rich media interpretation of existing historical documents, historical facts become an on-demand resource available to travellers, school children, historians and any interested 3rd party. To our knowledge this is the first introduction of the term timescape to be used in the context of historical information pull. Copyright
    Date Created:
    2013-09-05

  • Risk taking personality traits on affect processing during modified versions of the Iowa Gambling Task. Technical Report 2016-02

    Resource Type:
    Report
    Creator:
    Humeny, Courtney
    Abstract:
    The Iowa Gamb ling Task (IGT) is widely used to assess the role of emotion in decision making. However, there is only indirect evidence to support that the task measures emotion. There are inconsistencies in performance within in healthy populations who display risk tak ing traits. Two hundred and fifty participants were assessed for psychopathy, sensation seeking, and impulsiveness. The IGT was compared with modified versions that directly manipulated emotion within in the task by indexing reward and punishment cards wit h images varying in emotional content. Participants continued to learn to avoid risky decks in all versions of the IGT. The manipulation of emotional content within the task did affect performance: fearful images contributed to greater risky deck selection s. Across the tasks, psychopathy showed the strongest relationship to risky deck selections, and lower levels of psychopathy was associated decreased risky deck selections. However, psychopathy did not affect learning in the modified versions. Exploratory analysis on image valance found that negative images (compared to neutral) benefited learning for individuals with higher levels of psychopathy. Discussion will center on the benefits of manipulating emotion directly within the task as a means to assess th e validity of the IGT.
    Date Created:
    2016-02-02

  • Towards eliminating steganographic communication

    Resource Type:
    Conference Proceeding
    Creator:
    Whitehead, Anthony D.
    Abstract:
    There have been a number of steganography embedding techniques proposed over the past few years. In turn, there has been great interest in steganalysis techniques as the embedding techniques improve. Specifically, universal steganalysis techniques have become more attractive since they work independently of the embedding technique. In this work, we examine the effectiveness of a basic universal technique that relies on some knowledge about the cover media, but not the embedding technique. We consider images as a cover media, and examine how a single technique that we call steganographic sanitization performs on 26 different steganography programs that are publicly available on the Internet. Our experiments are completed using a number of secret messages and a variety of different levels of sanitization. However, since our intent is to remove covert communication, and not authentication information, we examine how well the sanitization process preserves authentication information such as watermarks and digital fingerprints.
    Date Created:
    2005-12-01

  • Understanding Chinese Confucommunism

    Resource Type:
    Article
    Creator:
    Kovalio, Jacob
    Date Created:
    2010-10-04

  • Can Shape Predict An Emotional Response? Detecting the Valence of Blurry Words. Technical Report 2015-01

    Resource Type:
    Report
    Creator:
    Yisa, Felix
    Abstract:
    My study attempted to find out if the old part of our brain (limbic system) had a significant role in influencing how we detect the valence of blurry words without conscious awareness of what the words are. 10 participants were shown blurry words that could not be read and were asked to guess valence, without a time limit. The hypotheses for this study was that participants would be accurate in detecting valence of blurred words and that participants would rate negative words the most accurately. I also predicted that participants would attempt to read words before rating valence and they would attempt to read the words only in the beginning. The stimuli were shown to the participants on printed-paper. There were 10 blurred words per page with accompanying 5-point Likert scales by each blurred word with a reference scale at the top of every page. My research data found that there was a significant statistical difference between people’s ability to detect the valence of blurred words compared to the normal ability (which is 100% accuracy). The comparison showed that the participants were significantly worse at detecting the valence of blurred words than unblurred words. There was no significant statistical difference between people’s ability to detect the valence of blurry neutral words compared to the valence of blurry nonsensical words. Participants were equally accurate at both of these word-types. Participant responses also showed that they were statistically better at detecting the valence of negative blurry words than positive blurry words. So they were better at detecting negative valence than those of other valences.
    Date Created:
    2015-01-06

  • ONIX-PL: OCUL License Mapping Project

    Resource Type:
    Conference Proceeding
    Creator:
    Neely, Colleen
    Abstract:
    Webinar presented to members of the Ontario Council of University Libraries, June 29, 2011.
    Date Created:
    2011-06-29

  • The future of information science education in Canada: issues and discussion

    Resource Type:
    Conference Proceeding
    Creator:
    Cross, Emma
    Date Created:
    2017-05-31

  • The Future of Drug Coverage in Canada

    Resource Type:
    Report
    Creator:
    Daw, Jamie R., Mintzes, Barbara, Morgan, Steven G., Gagnon, Marc-André, Martin, Danielle, and Lexchin, Joel
    Date Created:
    2015-07-15

  • Bachelor of Information Technology – Information Resource Management

    Resource Type:
    Conference Proceeding
    Creator:
    Cross, Emma and Merriam, Helena
    Date Created:
    2017-05-12

  • Value added proposition: the evolution of e-book cataloguers at Carleton University Library

    Resource Type:
    Poster
    Creator:
    Hayward, Angela, Cross, Emma, and McGreal, Louise
    Abstract:
    Carleton University Library has an innovative staff development program to expand the skill set of e-book cataloguers to provide a comprehensive service to manage and expand access e-books. In 2009 Carleton University Library hired its first e-book cataloguer in response to the rapid growth of digital resources in the Library collection; a second position was added in 2011. These positions have successfully evolved to incorporate a wide variety of duties related to e-books in response to rapidly changing digital environment. Conference poster presented at the CLA annual conference, June 3 to 5, 2015 in Ottawa, Ontario.
    Date Created:
    2015-06-03

  • Putting the Romance Back in Teams: Is Trust the Key to Unlock Knowledge Sharing?

    Resource Type:
    Article
    Creator:
    Tuer, Frances L.
    Abstract:
    One reason teams are seen to be a high-performance work practice (HPWP) is that the diversity of team member knowledge, skills and abilities, known as cognitive resource diversity supposedly brings new perspectives, information, ideas and resources to the solution of problems and the exploration and exploitation of opportunities. However, to date the performance of heterogeneous teams has been disappointing with the most common finding being increased conflict. Based on social identity and social exchange theories and building onto Mayer, Davis & Schoorman's (1995) classic integrative model of trust, this paper proposes that trust is a critical mediator in the relationship between cognitive resource diversity and within-team knowledge sharing.
    Date Created:
    2007-04-01

  • Getting ready for RDA: a modular approach to training library staff

    Resource Type:
    Conference Proceeding
    Creator:
    Cross, Emma
    Abstract:
    Resource Description and Access is the new content standard coming Spring 2013, with national libraries using RDA effective March 30, 2013. Libraries need to address training for staff in all departments on how to interpret, catalogue and use RDA records.
    Date Created:
    2013-02-13

  • Dataverse - A Data Sharing Platform

    Resource Type:
    Conference Proceeding
    Creator:
    Duimovich, George
    Abstract:
    Presentation to Data Science Seminar at Carleton University, Institute for Data Science, May 11, 2016.
    Date Created:
    2016-05-11

  • Energy Modelling Methodology for Community Masterplanning

    Resource Type:
    Conference Proceeding
    Creator:
    Bucking, Scott
    Abstract:
    Net-zero energy is an influential idea in guiding the building stock towards renewable energy resources. Increasingly, this target is scaled to entire communities which may include dozens of buildings in each new development phase. Although building energy modelling processes and codes have been well developed to guide decision making, there is a lack of methodologies for community integrated energy masterplanning. The problem is further complicated by the availability of district systems which better harvest and store on-site renewable energy. In response to these challenges, this paper contributes an energy modelling methodology which helps energy masterplanners determine trade-offs between building energy saving measures and district system design. Furthermore, this paper shows that it is possible to mitigate electrical and thermal peaks of a net-zero energy community using minimal district equipment. The methodology is demonstrated using a cold-climate case-study with both significant heating/ cooling loads and solar energy resources.
    Date Created:
    2017-07-25

  • Threshold Concepts for Teaching Information Literacy in the Classroom

    Resource Type:
    Conference Proceeding
    Creator:
    Tudin, Susan
    Abstract:
    Poster presented at the Teaching & Learning Symposium, Carleton University, May 11, 2016
    Date Created:
    2016-05-11

  • A systematic review of model based testing tool support

    Resource Type:
    Report
    Creator:
    Labiche, Yvan and Shafique, Muhammad
    Abstract:
    Model-based testing (MBT) is about testing a software system by using a model of its behaviour. To benefit fully from MBT, automation support is required. This paper presents a systematic review of prominent MBT tool support where we focus on tools that rely on state-based models. The systematic review protocol precisely describes the scope of the search and the steps involved in tool selection. Precisely defined criteria are used to compare selected tools and comprise support for test coverage criteria, level of automation for various testing activities, and support for the construction of test scaffolding. The results of this review should be of interest to a wide range of stakeholders: software companies interested in selecting the most appropriate MBT tool for their needs; organizations willing to invest into creating MBT tool support; researchers interested in setting research directions.
    Date Created:
    2010-05-01

  • UML diagram synthesis techniques: a systematic mapping study

    Resource Type:
    Report
    Creator:
    Labiche, Yvan, Torre, Damiano, and Genero, Marcela
    Abstract:
    Context: The Unified Modeling Language (UML), with its 14 different diagram types, is the de-facto standard modeling language for object-oriented modeling and documentation. Since the various UML diagrams describe different aspects of one, and only one, software under development, they are not independent but strongly depend on each ot her in many ways. In other words, diagrams must remain consistent. Dependencies between diagrams can become so intricate that it is sometimes even possible to synthesize one diagram on the basis of others. Support for synthesizing one UML diagram from other diagrams can provide the designer with significant help, thus speeding up the design process, decreasing the risk of errors, and guaranteeing consistency among the diagrams. Objective: The aim of this article is to provide a comprehensive summary of UML synthesis techniques as they have been described in literature to date in order to obtain an extensive and detailed overview of the current research in this area. Method: We have performed a Systematic Mapping Study by following well-known guide-lines. We selected ten primary studies by means of a search with seven search engines per-formed on October 2, 2013. Results: Various results are worth mentioning. First it appears that researchers have not frequently published papers concerning UML synthesis techniques since 2004 (with the exception of two papers published in 2010). Only half of the UML diagram types are involved in the synthesis techniques we discovered. The UML diagram type most frequently used as the source for synthesizing another diagram is the sequence diagram (66.7%), and the most synthesized diagrams are the state machine diagram (58.3%) and the class diagram (25%). Conclusion: The fact that we did not obtain a large number of primary stud ies over a 14 year period (only ten papers) indicates that synthesizing a UML diagram from other UML diagrams is not a particularly active line of research. Research on UML diagram synthesis is nevertheless relevant since synthesis techniques rely on or en force diagram consistency , and studying UML diagram consistency is an active line of research. Another r esult is that research is need ed to investigate synthesis techniques for other types of UML diagrams than those involved in our primary studies.
    Date Created:
    2015-08-01

  • Comparing GUI Functional System Testing with Functional System Logic Testing - An Experiment

    Resource Type:
    Report
    Creator:
    Labiche, Yvan and Alkhalid, A.
    Abstract:
    The practitioner interested in reducing software verification effort may found herself lost in the many alternative definitions of Graphical User Interface (GUI) testing that exist and their relation to the notion of system testing. One result of these many definitions is that one may end up testi ng twice the same parts of the Software Under Test (SUT), specifically the application logic code. To clarify two important testing activities for the avoidance of duplicate testing effort, this paper studies possible differences between GUI testing and system testing experimentally. Specifically, we selected a SUT equipped with system tests that directly exercise the application code; We used GUITAR, a well-known GUI testing software to GUI test this SUT. Experimental results show important differences between system testing and GUI testing in terms of structural coverage and test cost.
    Date Created:
    2016-09-08

  • Scottie Wilson's Canadian Legacy

    Resource Type:
    Article
    Creator:
    Miller, James D. and Johnston-Miller, Mary Margaret
    Date Created:
    2016-04-12

  • Reducing Instrumentation Overhead when Reverse-Engineering Object Interactions

    Resource Type:
    Report
    Creator:
    Mehrfard, Hossein and Labiche, Yvan
    Abstract:
    Reverse-engineering object interactions from source code can be done through static, dynamic, or hybrid (static plus dynamic) analyses. In the latter two, monitoring a program and collecting runtime information translates into some overhead during program execution. Depending on the type of application, the imposed overhead can reduce the precision and accuracy of the reverse-engineered object interactions (the larger the overhead the less precise or accurate the reverse-engineered interactions), to such an extent that the reverse-engineered interactions may not be correct, especially when reverse-engineering a multithreaded software system. One is therefore seeking an instrumentation strategy as less intrusive as possible. In our past work, we showed that a hybrid approach is one step towards such a solution, compared to a purely dynamic approach, and that there is room for improvements. In this paper, we uncover, in a systematic way, other aspects of the dynamic analysis that can be improved to further reduce runtime overhead, and study alternative solutions. Our experiments show effective overhead reduction thanks to a modified procedure to collect runtime information.
    Date Created:
    2015-11-01

  • L'entrepreneuriat social, mieux connaître Ie concept

    Resource Type:
    Article
    Creator:
    Brouard, Francois
    Abstract:
    Entrepreneurship is a recognized concept both for research and practice. It is possible to find university courses, research published in specialized journals, associations dedicated to entrepreneurship promotion and governmental support. In a regional economic development context, a special form of entrepreneurship could achieve other objectives. Social entrepreneurship is an emergent concept earning more popularity than ever around the planet. However the concept is not well known. The objective of the paper is to present an overview of the social entrepreneurship concept.
    Date Created:
    2007-02-01

  • Women’s Leadership Matters: The Impact Of Women’s Leadership In The Canadian Federal Public Service

    Resource Type:
    Report
    Creator:
    Morris, Marika
    Description:
    The study was initiated as Canada’s contribution to the Wilson’s Centre Global Women’s Leadership Initiative Women in Public Service Project initiated by Hilary Clinton when she was Secretary of State. In partnership with the Centre for Women in Politics and Public Leadership, Gender Equality Measurement Initiative, and Centre for Research on Women and Work at Carleton University and the Public Service Commission of Canada.
    Abstract:
    This study was undertaken to determine whether women in leadership positions in the Canadian federal Public Service (PS) have had an impact on policy, programs, operations, administration or workplace conditions, what that impact might be, and how to measure it. Drawing from qualitative interviews with current and retired Executives and Deputy Ministers in the Canadian federal public service, it provides recommendations and considerations around gender and impact moving forward.
    Date Created:
    2016-06-22

  • The Welfare and Distributional Effects of Fiscal Volatility: a Quantitative Evaluation

    Resource Type:
    Research Paper
    Creator:
    Bachmann, Rudiger, Lee, Minjoon, Bai, Jinhui H., and Zhang, Fudong
    Date Created:
    2018-05-18

  • The Whole is Greater than the Sum of its Parts: Collection Growth Reports & Informed Decision-Making

    Resource Type:
    Poster
    Creator:
    Newton Miller, Laura
    Abstract:
    Collection space is an issue within the library. The assessment librarian examined statistics from various resources that are typically collected in the library, but not normally looked at as a whole. These Collection Growth Reports will help library staff to make evidence-based purchasing and weeding decisions.
    Date Created:
    2015-07-20

  • Building the Future: Minecraft and LeBreton Flats at Carleton University MacOdrum Library

    Resource Type:
    Conference Proceeding
    Creator:
    Tucci, Ryan
    Abstract:
    Libraries are quickly becoming spaces for more than just books and journals. At Carleton University MacOdrum Library, we used Minecraft to introduce elementary and high school students to the power of gaming as a tool to foster education, research and collaboration. In May 2015, we encouraged students to take part in a project that engaged them with a local project called the LeBreton Flats Redevelopment Project. The redevelopment project led by the National Capital Commission (NCC), shortlisted four developers and published their proposals for the community to see. Using the criteria presented by the four pre-qualified proponents, the students were asked to research and propose their own ideas for the space. Using a scale version of the space in Minecraft, the students built their proposed plan for the space in a 1:1 scale replica of LeBreton Flats.
    Date Created:
    2016-01-29

  • A Blue Ocean Strategy Analysis of IMAX’s Move to Go Hollywood

    Resource Type:
    Article
    Creator:
    Becker, Hilary
    Date Created:
    2014-01-01

  • A systematic identification of consistency rules for UML diagrams

    Resource Type:
    Report
    Creator:
    Torre, Damiano, Elaasar, Maged, Genero, Marcela, and Labiche, Yvan
    Abstract:
    UML diagrams describe different views of one piece of software. These diagrams strongly depend on each other and must therefore be consistent with one another, since inconsistencies between diagrams may be a source of faults during software development activities that rely on these diagrams. It is therefore paramount that consistency rules be defined and that inconsistencies be detected, analyzed and fixed. The relevant literature shows that authors typically define their own UML consistency rules, sometimes defining the same rules and sometimes defining rules that are already in the UML standard. The reason might be that no consolidated set of rules that are deemed relevant by authors can be found to date. The aim of our research is to provide a consolidated set of UML consistency rules and obtain a detailed overview of the current research in this area. We therefore followed a systematic procedure in order to collect and analyze UML consistency rules. We then consolidated a set of 116 UML consistency rules (avoiding redundant definitions or definitions already in the UML standard) that can be used as an important reference for UML-based software development activities, for teaching UML-based software development, and for further research.
    Date Created:
    2016-07-01

  • Education for Experience: One View of Tibetan Tantric Initiation

    Resource Type:
    Research Paper
    Creator:
    Given, Brian J.
    Abstract:
    The ethnographic treatment of "rites de Passage" is discussed with reference to material relating to religious initiation. It is suggested that the major transitions engendered through the Tibetan Buddhist Tantric W a n g Kur rituals may be profitably analyzed not simply as changes in social status but rather as tools for the re-ordering of phenomenology which are designed to engender long-term alterations in the initiates' experience of the world. The initiation provides a rationale and instruction conjunctive with ritual technique which is consciously designed to globally and permanently alter the consciousness of the practitioner. Suggestions for studies of rites of passage which take into account this dimension of the ritual control of experience are offered.
    Date Created:
    1992-10-22

  • Assigning Value to Peel's Regional Police’s School Resource Officer Program

    Resource Type:
    Report
    Creator:
    Duxbury, Linda E. and Bennell, Craig
    Abstract:
    Police in schools In an era where the costs of policing are constantly under scrutiny from governing municipalities, the time has come for police agencies to re-evaluate the services they provide. To do this, they need to answer questions relating to the value that different activities they perform create in the communities they serve. In other words, they need to change the focus of the conversation from “what does this service cost” to “what value does this service provide.” This document summarizes key findings from a longitudinal (2014-2017), multi-method (quantitative, qualitative, and ethnographic analysis, along with a Social Return on Investment [SROI] analysis) case study undertaken to identify the value of School Resource Officers (SROs) that are employed by Peel Regional Police and work in the service’s Neighborhood Police Unit (NPU). Of note is the application of SROI techniques in this evaluation process. SROI, a methodology that emerged from the not-for-profit sector, helps researchers identify sources of value outside of those considered through traditional valuation techniques, such as cost-benefit analysis. Evaluation of Peel Police’s SRO program was motivated by a number of factors. First, the costs of this program are both easy to identify and significant (just over $9 million per year). Second, it is very challenging to identify the value that this program provides to students and the community. The challenges of quantifying the value offered by assigning full-time SROs to Canadian high schools is evidenced by the fact that such programs are rare, as police services around the world have responded to pressures to economize by removing officers from schools and either eliminating the role of the SRO or having one officer attend to many schools.
    Date Created:
    2018-01-10

  • Methodology for energy and economic modeling of net zero energy communities

    Resource Type:
    Conference Proceeding
    Creator:
    Bucking, Scott and Cotton, James S.
    Abstract:
    Net zero energy (NZE) communities are becoming pivotal to the energy vision of developers. Communities that produce as much energy as they consume provide many benefits, such as reducing life-cycle costs and better resilience to grid outages. If deployed using smart-grid technology, NZE communities can act as a grid node and aid in balancing electrical demand. However, identifying cost-effective pathways to NZE requires detailed energy and economic models. Information required to build such models is not typically available at the early master-planning stages, where the largest energy and economic saving opportunities exist. Methodologies that expedite and streamline energy and economic modeling could facilitate early decision making. This paper describes a reproducible methodology that aids modelers in identifying energy and economic savings opportunities in the early community design stages. As additional information becomes available, models can quickly be recreated and evaluated. The proposed methodology is applied to the first-phase design of a NZE community under development in Southwestern Ontario.
    Date Created:
    2015-01-01

  • The Strategic Dimensions of information Systems Capability: An Evolutionary and Resource-based View

    Resource Type:
    Article
    Creator:
    Grant, Gerald and Liebenau, Jonathan
    Abstract:
    Research emphasizing evolutionary and resource-based perspectives of the firm highlights the importance of core capabilities as sources of superior performance, and views capabilities in computer-based IT systems as instrumental in leading to strategic advantage. However, the asymmetrical results from such systems present a somewhat confusing picture as to the key issues that managers should be addressing. We present an approach to IS capability development that applies a combined evolutionary and resource-based perspective. We propose that IS capability is determined along three strategic dimensions and will result from effective and sustained efforts in three complementary areas that are discussed in this paper. We use three case studies to illustrate the use of the proposed IS capability framework in analyzing information systems in organizations.
    Date Created:
    2007-02-01

  • The Culture of Protection and the Protection of Culture - A Canadian Perspective in 1998

    Resource Type:
    Research Paper
    Creator:
    Acheson, Keith and Maule, Christopher
    Abstract:
    An earlier version of this paper was prepared for a Symposium, Cultural Policies in Regional Integration, sponsored by the Center for the Study of Western Hemispheric Trade and the Mexican Center of the Institute of Latin American Studies, The University of Texas at Austin, February 2, 1998.
    Date Created:
    1998-02-28

  • A CyberUrban Space Odyssey. The Spatiality of Contemporary Social Movements

    Resource Type:
    Article
    Creator:
    Lim, Merlyna
    Abstract:
    The article scrutinizes the complex entanglement of cyberurban spaces in the making and development of contemporary social movement by analyzing its imaginaries, practices, and trajectories. This issue of New Geographies, “Geographies of Information” (edited by Taraneh Meskhani & Ali Fard), presents a new set of frameworks that refrain from generalizations to highlight the many facets of the socio-technical constructions, processes, and practices that form the spaces of information and communication. In addition to Lim, contributors of the issue include prominent thinkers and scholars in various related disciplines such as Rob Kitchin (critical data), Stephen Graham (urbanism) and Malcolm McCullough (architecture/urban computing).
    Date Created:
    2015-10-20