cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modelling of pollutant transport in compound open channels.
Creators: name: Chatila, Jean Georges.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1998
Subjects: subject: Hydrology.

description: The present research investigates the numerical and experimental modelling aspects of flow in compound channels, with special interest in the transport of inert pollutant aspects. This is examined through developing a 2-D finite difference mathematical model, (CHAT: Compound-channel Hydraulics And Transport), to solve the flow and transport equations for open channels having compound cross-sections. The numerical computation of open-channel flows requires preparing and processing larger volumes of boundary and bathymetry data for computer inputs and the development of numerical algorithms for treating complex boundary condition, channel properties, and free surface effects. Derivation of the basic differential equations is based on the Navier-Stokes equations of continuity and fluid motion, in addition to the convection-dispersion equation. These equations are derived in three dimensions (3-D), however, in order to simplify the problem and ease the computational effort, the equations are integrated over the depth (depth-averaged). Most finite difference methods for calculating the convection portion of the transport equation are plagued by artificial (numerical) diffusion. This is sometimes stronger than the physical diffusion and can render the calculations useless. Therefore, as far as reliability of the results is concerned, selection of the numerical scheme is critical. Data for the verification and validation of the developed mathematical model was obtained through dye-tracer experiments performed in a large concrete channel of the Hydraulics Laboratory, University of Ottawa. Consideration was limited to conservative, non-buoyant material. The study investigates the impact on the mixing processes of strong lateral momentum transfer effects associated with severely compound flow fields. The experiments include measurements of dye concentrations downstream from slug-injection or steady-injection point source(s). Longitudinal and transverse mixing coefficients were calculated using the method of moments and by estimation using empirical relationships. In general, it is not possible to obtain analytical solutions to the dispersion equation in natural waterways with arbitrary boundary conditions. However, a variety of exact solutions exists for idealized situations, which can be useful in obtaining order-of-magnitude estimates. These exact simplified solutions were applied to our experimental data. The comparison between measured and predicted concentration curves by the developed model shows a level of agreement in the general shape, peak concentrations and time to peak. Different statistical methods were considered in evaluating the simulated results.
Neoadjuvant Oncolytic Virus Therapy in a Murine Model of Cancer Surgery
Creators: name: Kus, Agnieszka
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2010
Subjects: subject: Chemistry, Biochemistry.

description: Surgery is the primary treatment modality for most solid tumours. Despite complete resection, the development of metastatic disease limits it curative potential and provides the rationale for neoadjuvant (preoperative) therapies. Oncolytic Viruses (OVs) are replicating therapeutics that are selected or engineered to grow in malignant cell types and are capable of killing the infected target cell, while leaving normal, adjacent cells unharmed. OVs may be an ideal candidate for generating a potent anti-tumour immune response due to effective recruitment of immune cells into the tumour microenvironment, proper activation of immune cells, and generation of tumour antigen-specific T cells. Preoperative OV therapy may serve as a neoadjuvant immunotherapy capable of preventing the development of metastatic disease by generating an effective immune response. Although VSVDelta51GM-CSF treatment of CT26lacZ tumours is able to generate an anti-tumour immune response capable of preventing the growth of a subsequent CT26lacZ tumour, preoperative VSVDelta51GM-CSF treatment of primary tumours in a CT26lacZ surgery model was unable to generate an immune response capable of rejecting a secondary tumour. This abrogation of protection against the secondary CT26lacZ tumour was observed to be a result of the surgical intervention. Preoperative VSVDelta51GM-CSF and VSVDelta51 treatment IV of primary tumours in a B16-F10 surgery model was unable to generate an immune response capable of reducing the number of secondary surface lung metastases. JXS94mGMCSF treatment IT of a primary tumour in a B16-F10 surgery model was able to reduce the number of secondary surface lung metastases, while JXS94mGMCSF injected IV was not. This suggests that one of the factors in the induction of an anti-tumour immune response by neoadjuvant therapy in a surgical model may be the route of administration of ov.
title: Complicaciones asociadas a la inserción de catéteres venosos centrales tunelizados de tipo Tesio.
Creators: name: Gallo Terán, Jaime
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Interventional vascular
subject: Veins / Vena cava
subject: Venous access
subject: Catheters

description: Objetivos
Material y método
Resultados
Conclusiones
description: Objetivos:
Los catéteres venosos centrales tunelizados constituyen una alternativa como acceso vascular temporal o permanente cada vez más importante en los pacientes que requieren tratamiento con hemodiálisis.
Sin embargo,
se han descrito múltiples...
Dictionaries and ideology: The treatment of gays, lesbians and bisexuals in lexicographic works.
Creators: name: Ball, Matthew Bruce.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1998
Subjects: subject: Language, Modern.

description: This thesis examines ideological influence on lexicography. Since dictionaries can be viewed as a form of ideological commentary, what do they say about the different groups that society marginalizes either because of these groups' minority status or because of the norms and values of the majority? How do dictionaries reflect society's persistent prejudices and stereotypes? These questions prove to be important because language and words shape our thoughts and expression and dictionaries are viewed as the authority on their use. This research is of added interest because the dictionary is ostensibly scientific, objective and neutral and many users are not aware that the dictionary might mirror the values and prejudices of the dominant ideology of the society in which it is produced. First, the thesis examines the conceptual framework of the relationship between the dictionary and dominant ideology. Then, I analyze a variety of dictionaries (three English and three French unilingual and three bilingual English-French) and their treatment of 67 lexical items that refer to the lesbian, bisexual and gay communities based on this conceptual framework. The results of this research reveal (a) that the dictionary excludes many words that do not represent the dominant ideology, and (b) that for those words that are included, little information is provided and what is provided reveals sociocultural bias.
Understanding and exploration of cellulose nanofibrils-water interaction for the application in smart responsive materials
Creators: name: Zhu, Jiaying
Publisher: name: University of British Columbia
Year: 2025

description: Cellulose, a natural polymer, has emerged as a promising alternative to petroleum-based materials, offering sustainable and environmentally friendly solutions to address climate change and plastic pollution. Leveraging its intrinsic moisture-sensitive properties, cellulose can be utilized to create a wide range of moisture-responsive materials (MRMs). However, several challenges hinder the practical application of these materials, including prolonged response times, weak interfacial bonding, and restricted hydrophilicity. This thesis addresses these limitations by utilizing cellulose nanofibrils (CNFs) in combination with innovative material design, scalable and facile fabrication techniques, and fundamental mechanism validation. The resulting CNF-based films were further integrated into functional devices to demonstrate proof-of-concept applications. This work initiates an in-depth investigation into the impact of CNF surface charge density on hygroscopicity and ionic conductivity. By manipulating the inherent properties of cellulose, humidity sensing capabilities were significantly enhanced. An increase in surface charge density led to improved water uptake and charge carrier density in CNF films, achieving high humidity sensitivity that outperforms most reported polymer-based humidity sensors. However, the dense structure of CNFs resulted in unsatisfactory response and recovery times. To address this challenge, a bilayer structure composed of CNF and microfibrillated cellulose (MFC) was developed, bonded through chitosan. This innovative design exploits the hierarchical porous structure and differential hygroscopicity of CNF and MFC to create an effective wettability gradient, facilitating rapid and stable moisture transport. The observed moisture-induced structural deformations further inspired an exploration of the hydro-swelling properties of cellulosic films. This property was harnessed to develop a hydration-driven imprinting method, enabling facile surface patterning and demonstrating the versatility of CNF-based materials. The impact of water content on the mechanical properties of CNF was systematically analyzed, revealing its potential for dynamic surface patterning through bulk deformation. A moisture-responsive film comprising a CNF top layer and a polyvinyl alcohol (PVA)/glycerol bottom layer was fabricated, enabling dynamic regulation of light and heat under varying weather conditions. Overall, the approaches outlined in this thesis highlight the immense potential of CNFs in the development of cellulose-based MRMs. These advancements address critical limitations and pave the way for broader adoption of sustainable, high-performance materials in diverse applications.
title: TC en la evaluación del engrosamiento de la pared intestinal: claves para el diagnóstico diferencial.
Creators: name: Villalba Gutiérrez, Alvaro
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Abdomen
subject: Small bowel
subject: Colon
subject: CT

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
Describir los hallazgos radiológicos en TC más útiles para el diagnóstico diferencial en el engrosamiento de la pared intestinal mediante un planteamiento sistematizado de los mismos.
Revisaremos las principales patologías causantes de...
Spatiotemporally restricted arenavirus replication induces immune surveillance and type I interferon-dependent tumour regression
Creators: name: Kalkavan, Halime
name: Sharma, Piyush
name: Kasper, Stefan
name: Helfrich, Iris
name: Pandyra, Aleksandra A.
name: Gassa, Asmae
name: Virchow, Isabel
name: Willimsky, Gerald
name: Lohning, Max
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2017
Subjects: subject: Arenaviruses
subject: Cancer therapy
subject: Tumour immunology
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

description: Immune-mediated effector molecules can limit cancer growth, but lack of sustained immune activation in the tumour microenvironment restricts antitumour immunity. New therapeutic approaches that induce a strong and prolonged immune activation would represent a major immunotherapeutic advance. Here we show that the arenaviruses lymphocytic choriomeningitis virus (LCMV) and the clinically used Junin virus vaccine (Candid#1) preferentially replicate in tumour cells in a variety of murine and human cancer models. Viral replication leads to prolonged local immune activation, rapid regression of localized and metastatic cancers, and long-term disease control. Mechanistically, LCMV induces antitumour immunity, which depends on the recruitment of interferon-producing Ly6C+ monocytes and additionally enhances tumour-specific CD8+ T cells. In comparison with other clinically evaluated oncolytic viruses and to PD-1 blockade, LCMV treatment shows promising antitumoural benefits. In conclusion, therapeutically administered arenavirus replicates in cancer cells and induces tumour regression by enhancing local immune responses.
title: Von Blockchain über Raumfahrt bis virtuellen Welten
title: Von Blockchain über Raumfahrt bis virtuellen Welten
titleType: AlternativeTitle
Creators: name: Jetzke, Tobias
name: Richter, Stephan
name: Abel, Sebastian
Publisher: name: Umweltbundesamt
Year: 2021
Subjects: subject: Futurologie
subject: Horizon Scanning
subject: Digitalisierung
subject: Strategische Vorausschau
subject: Zukunftsforschung
subject: horizon scanning
subject: Blockchain
subject: Robotik
subject: Virtual Reality
subject: bioinspirierte Architektur
subject: gespaltene Gesellschaft
subject: Nachhaltigkeit | Strategien | Internationales

description: Seit einigen Jahren führt das Umweltressort Horizon Scanning Prozesse durch, um neu aufkommende Veränderungen zu identifizieren, die maßgebliche Auswirkungen auf den Umwelt- und Nachhaltigkeitsbereich haben könnten und jenseits der Mainstream-Diskurse in Wissenschaft und Medien liegen. Ziel des Projektes war es, möglichst frühzeitig zukünftige Chancen und Risiken sowie mögliche Handlungsoptionen für die Umweltpolitik abzuleiten und neue Umweltforschungsbedarfe zu identifizieren. Im vorliegenden Bericht sind die Ergebnisse des Horizon Scannings veröffentlicht. Die zehn Themen mit besonderer Relevanz erstrecken sich von Distributed Ledger Technologien und Virtual und Augmented Reality, über die staatliche und private Raumfahrt bis hin zur Bioinspirierten Architektur- und Siedlungsentwicklung, als auch alternativen Lebenskonzepten und gesellschaftlicher Spaltung. Das Thema Künstliche Intelligenz im Umweltbereich wurde ebenfalls im Horizon Scanning Prozess als besonders relevant für das Umweltressort identifiziert und ist in einer gesonderten Studie analysiert und veröffentlich worden. Quelle: https://www.umweltbundesamt.de
description: Seit einigen Jahren führt das Umweltressort Horizon Scanning Prozesse durch, um neu aufkommende Veränderungen zu identifizieren, die maßgebliche Auswirkungen auf den Umwelt- und Nachhaltigkeitsbereich haben könnten und jenseits der Mainstream-Diskurse in Wissenschaft und Medien liegen. Ziel des Projektes war es, möglichst frühzeitig zukünftige Chancen und Risiken sowie mögliche Handlungsoptionen für die Umweltpolitik abzuleiten und neue Umweltforschungsbedarfe zu identifizieren.Im vorliegenden Bericht sind die Ergebnisse des Horizon Scannings veröffentlicht. Die zehn Themen mit besonderer Relevanz erstrecken sich von Distributed Ledger Technologien und Virtual und Augmented Reality, über die staatliche und private Raumfahrt bis hin zur Bioinspirierten Architektur- und Siedlungsentwicklung, als auch alternativen Lebenskonzepten und gesellschaftlicher Spaltung.Das Thema Künstliche Intelligenz im Umweltbereich wurde ebenfalls im Horizon Scanning Prozess als besonders relevant für das Umweltressort identifiziert und ist in einer gesonderten Studie analysiert und veröffentlich worden.
Emergence of new optical resonances in single-layer transition metal dichalcogenides with atomic-size phase patterns
Creators: name: Woods, John M.
name: Chand, Saroj B.
name: Mejia, Enrique
name: Taniguchi, Takashi
name: Watanabe, Kenji
name: Flick, Johannes
name: Grosso, Gabriele
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Atomic-scale control of light-matter interactions represent the ultimate frontier for many applications in photonics and quantum technology. Two-dimensional semiconductors, including transition metal dichalcogenides, are a promising platform to achieve such control due to the combination of an atomically thin geometry and convenient photophysical properties. Here, we demonstrate that a variety of durable polymorphic structures can be combined to generate additional optical resonances beyond the standard excitons. We theoretically predict and experimentally show that atomic-sized patches of 1T phase within the 1H matrix form unique electronic bands that give rise to new and robust optical resonances with strong absorption, circularly polarized emission and long radiative lifetime. The atomic manipulation of two-dimensional semiconductors opens unexplored scenarios for light harvesting devices and exciton-based photonics.
title: Manifestaciones radiológicas del Síndrome de Budd-Chiari.
Creators: name: Blanco Pérez, Esther
Publisher: name: Sociedad Española de Radiología Médica
Year: 2012
Subjects: subject: Abdomen

description: Objetivo docente
Revisión del tema
Conclusiones
description: Objetivo docente:
Los objetivos se describen en la imagen adjunta (figura...
Phylogenomics of palearctic Formica species suggests a single origin of temporary parasitism and gives insights to the evolutionary pathway toward slave-making behaviour
Creators: name: Romiguier, Jonathan
name: Rolland, Jonathan
name: Morandin, Claire
name: Keller, Laurent
Publisher: name: BioMed Central
Year: 2018

description: Background: The ants of the Formica genus are classical model species in evolutionary biology. In particular, Darwin used Formica as model species to better understand the evolution of slave-making, a parasitic behaviour where workers of another species are stolen to exploit their workforce. In his book “On the Origin of Species” (1859), Darwin first hypothesized that slave-making behaviour in Formica evolved in incremental steps from a free-living ancestor. Methods: The absence of a well-resolved phylogenetic tree of the genus prevent an assessment of whether relationships among Formica subgenera are compatible with this scenario. In this study, we resolve the relationships among the 4 palearctic Formica subgenera (Formica str. s., Coptoformica, Raptiformica and Serviformica) using a phylogenomic dataset of 945 genes for 16 species. Results: We provide a reference tree resolving the relationships among the main Formica subgenera with high bootstrap supports. Discussion: The branching order of our tree suggests that the free-living lifestyle is ancestral in the Formica genus and that parasitic colony founding could have evolved a single time, probably acting as a pre-adaptation to slave-making behaviour. Conclusion: This phylogenetic tree provides a solid backbone for future evolutionary studies in the Formica genus and slave-making behaviour.
The role of Internet Service Providers in combating botnets: an examination of recent Australian initiatives and legislative reform
Creators: name: Maurushat, Alana
Publisher: name: Swinburne
Year: 2024

description: This article examines the role of Internet Service Providers (ISPs) in combating botnets. The first section addresses recent Australian initiatives where ISPs are called on to take a proactive security role. The first initiative is the Australian Internet Security Initiative established by ACMA. The second, and most recent, initiative is the Australian Internet Industry Association (IIA) Code of Practice consultation paper on 'For Industry Self-Regulation in the Area of E-Security'1. The E-Security initiative involves ISP monitoring and detecting compromised computers connected to their networks, notifying customers when their computers are infected and, hence, are part of a botnet, providing links to information to disinfect a computer, and quarantining the infected computer until it is 'fit for connection'. The article examines ISP legal liability issues and addresses the February 2010 amendments to the Telecommunications Interception Act which exempt ISPs from the obligations of the previously established interception and warrant framework when performing detection and monitoring (including interception of communications) for reasons related to network protection and security.
Supplementary document for Shaping long-lived electron wavepackets for customizable optical spectra - 4022233.pdf
Creators: name: Dangovski, Rumen
name: Rivera, Nicholas
name: Soljacic, Marin
name: Kaminer, Ido
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Photonics, Optoelectronics and Optical Communications

description: supplemental document.
Supplementary document for Shaping long-lived electron wavepackets for customizable optical spectra - 4022233.pdf
Creators: name: Dangovski, Rumen
name: Rivera, Nicholas
name: Soljacic, Marin
name: Kaminer, Ido
Publisher: name: Optica Publishing Group
Year: 2019
Subjects: Photonics, Optoelectronics and Optical Communications

description: supplemental document.
Vapor-liquid equilibria of the carbon tetrachloride, cyclohexane and isopropyl alcohol system.
Creators: name: Yuan, Kuan Shih.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1961
Subjects: subject: Engineering, Chemical.

description: The vapor-liquid equilibrium data of the binary and the ternary systems of carbon tetrachloride, cyclohexane and isopropyl alcohol at a pressure of 760 mm Hg were determined. A Gillespie type still with modification was used. The density and refractive index were used to analyse the vapor and liquid samples. Temperature was measured by means of a copper-constantan thermocouple. An azeotrope was found for carbon tetrachloride - isopropyl alcohol, cyclohexane - isopropyl alcohol and the ternary system. The Gibbs-Duhem equation for a binary system at constant pressure was used to check the consistency of the binary data. All three binary systems data were found to be thermodynamically consistent. The three-constant Redlich-Kister equation for the binary system was found to represent all the three binary systems under investigation and the thirteen-constant, (nine binary constants and the four ternary constants) Redlich-Kister equation was found to represent the ternary system.
The use of monitoring data in EU chemicals management
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2015
Subjects: Chemikalienmanagement
Umweltprobenbank

description: Since the 1970s, environmental specimen banks (ESB) have emerged in many countries. Their highly standardised sampling and archiving strategies make them a valuable tool in tracing time trends and spatial distributions of chemicals in ecosystem compartments. The present article intends to highlight the potential of ESBs for regulatory agencies in the European Union (EU). The arguments are supported by examples of retrospective monitoring studies conducted under the programme of the German ESB. These studies have evaluated the success of regulatory and industry provisions for substances of concern (i.e. PCB, polybrominated diphenyl ethers, perfluorinated compounds, alkylphenol compounds, organotin compounds, triclosan/methyl-triclosan, musk fragrances). Time trend studies revealed for example that levels of organotin compounds in marine biota from German coastal waters decreased significantly after the EU had decided on a total ban of organotin-based antifoulings in 2003. Similarly, concentrations of commercially relevant congeners of polybrominated diphenyl ethers decreased in herring gull eggs from the North Sea only after an EU-wide ban in 2004. The data presented demonstrate the usefulness of ESB samples for (retrospective) time trend monitoring and underline the benefit of a more intensive cooperation between chemicals management and specimen banking.
Quelle: http://www.ncbi.nlm.nih.gov/
Supplementary document for Design of illumination optics with extended sources based on wavefront tailoring - 4029954.pdf
Creators: name: Sorgato, Simone
name: Chaves, Julio
name: Thienpont, Hugo
name: Duerr, Fabian
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Optical Physics not elsewhere classified

description: supplementary document
Effects of Basins during Subduction Earthquakes on the Collapse Fragility of Existing Tall Steel Buildings
Creators: name: Molina Hutt, Carlos
name: Marafi, N.
name: Berman, J.
name: Eberhard, M.
Publisher: name: The University of British Columbia
Year: 2019

description: Sedimentary basins tend to increase the intensity of earthquake ground motions at long periods and the resulting damage in tall structures. However, the effects of basin amplification on spectral acceleration are not directly included in the seismic hazard maps used in US building codes. This issue is particularly important in the Pacific Northwest, which has several deep basins and the potential for large-magnitude subduction earthquakes that can dominate the seismic hazard at long periods. This study aims to evaluate the impact of deep basins and long-duration shaking on the response of existing tall steel moment-frames by means of a 50-story archetype office building designed per the 1973 Uniform Building Code. Suites of ground motions, developed to investigate the impacts of magnitude 9 Cascadia subduction zone earthquakes on the Pacific Northwest, are used to evaluate the impact of basin effects by comparing seismic demands for records inside versus outside a basin. The study also isolates the effect of duration by using spectrally equivalent motions to the inside and outside basin sets from shorter duration ground motions recorded during crustal earthquakes. A suite of ground motions consistent with the 2475 year return period UHS in Seattle is also considered in order to study the impact of ground motions whose spectra match the UHS versus ground motions consistent with large-magnitude subduction earthquakes. An incremental dynamic analysis approach is carried out for each ground motion set in order to evaluate impacts on the expected collapse fragility of the archetype building. The results indicate that for the archetype 50-story 1970s steel moment frame building: (i) inside basin motions are more likely to cause collapse than the outside basin motion, (ii) duration effects have negligible impact on the relative collapse capacity, and (iii) UHS motions are the least likely to cause collapse.
The role of IPTV in education
Creators: name: Clarke, Ken
name: Mccullough, Michael
name: Leins, Kursten
name: Tidhar, Gil
name: Farmer, Doug
Publisher: name: Swinburne
Year: 2024

description: Internet Protocol TV (IPTV) is best known as a platform for the provision of entertainment services, such as movies-on-demand, and which provides sizeable revenue streams for telecommunications and Internet service providers in various markets across the globe. Less appreciated are the intriguing possibilities IPTV offers in the education domain where operators are also in competition. They, too, are constantly seeking innovative services and delivery mechanisms for their 'customers', who increasingly demand their education via non-traditional modes of delivery to fit in with changing lifestyles and expectations. This article will outline the basics of IPTV technology and provide examples of its being used in a variety of situations across the educational spectrum, including tertiary education, continuing professional development (CPD), and personally tailored education services in the home for the wider community. © 2012 Swinburne University of Technology.
Supplementary document for Design of illumination optics with extended sources based on wavefront tailoring - 4029954.pdf
Creators: name: Sorgato, Simone
name: Chaves, Julio
name: Thienpont, Hugo
name: Duerr, Fabian
Publisher: name: Optica Publishing Group
Year: 2019
Subjects: Optical Physics not elsewhere classified

description: supplementary document
A solution to an inverse problem of groundwater flow using stochastic finite element method
Creators: name: Mardyanto, Mas Agus
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2004
Subjects: subject: Hydrology.
subject: Engineering, Civil.

description: In this study, a stochastic finite element method is used to solve an inverse problem in groundwater flow. The adjoint states method combined with cokriging method is used to estimate the distribution of hydraulic conductivities in an area where hydraulic heads and hydraulic conductivities are measured at some locations. This method starts with obtaining the expected hydraulic heads in the entire study domain at different times. Then, the adjoint states at different times are calculated. Using both calculated values as input, the Jacobians that are needed for the development of covariance matrices of hydraulic heads at different times and the cross-covariance matrices between hydraulic heads at different times and hydraulic conductivities in the aquifer are calculated. Using the maximum likelihood estimate method (MLE), which utilizes all covariance and cross-covariance matrices obtained from the previous step, the statistical parameters (mean, variance, and correlation scale) of the model are estimated. Using the statistical parameter values and all observed values of hydraulic heads at different times and all measured hydraulic conductivities, the distribution of hydraulic conductivity in the entire study domain is estimated. An attempt is made in this thesis to verify the computer program by utilizing two hypothetical problems as verification cases. In some parts of the aquifer, mostly at locations around the observation wells, the resulting hydraulic conductivity distributions have the same pattern with the "true" distribution patterns in both cases of verification. The values of L2-norms calculated by using the "true" and estimated values of log hydraulic conductivity are 0.18 and 0.57 for Case 1 and 2, respectively. Data from two field problems are analyzed as an application of the computer program. The estimated values of hydraulic conductivity are found to be within the range of the observed values given in the original reports. These applications can be considered as a part of the validation of the method. Considering the results of both case studies, it appears that the computer program developed in this study can be used with reasonable success to estimate the hydraulic conductivity distribution in real aquifers. As will be explained in the discussion of the results, however, the effect of zonation needs to be investigated further. (Abstract shortened by UMI.)
Quantum mechanical interaction of matter with the scalar mode of gravitational wave in modified gravity theories
Creators: name: Das, Rakesh
name: Saha, Anirban
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the interaction of a quantum mechanical particle with gravitational wave (GW) in the framework of modified theory of gravity (MTG) where apart from the two standard tensorial modes of polarization of GW there exists another massless scalar mode. The purpose of using the MTG framework in our study is to uncover key features in matter's response to GWs that, if observed in actual GW data, can serve as observational evidence in favor of MTG over standard General Relativity.
description: 6 pages, LaTex, double column
High spatial resolution of uniaxial compressive strength and its application in stope stability design
Creators: name: Cartes Melo, Ignacio Alberto
Publisher: name: University of British Columbia
Year: 2025

description: Rock mass characterization is fundamental in underground mining and geotechnical engineering, particularly for stope stability design. Traditional classification methods such as Rock Quality Designation (RQD), Rock Mass Rating (RMR), and the Q-system have been widely used to assess rock mass properties. However, these methodologies rely on qualitative and empirical assessments, which may not fully capture the inherent variability of rock masses. This research aims to improve the spatial resolution of Uniaxial Compressive Strength (UCS) measurements and integrate advanced numerical modelling techniques for more reliable stope stability predictions. A comprehensive data acquisition campaign was conducted, incorporating both laboratory testing and in-situ measurements. Probabilistic and numerical modelling approaches, including Monte Carlo simulations and finite element analysis, were employed to refine stability assessments. The results demonstrate that an improved UCS spatial resolution enhances the variability in rock mass, allowing for better prediction of potential failure zones and more efficient support design. The findings of this study highlight the need for a paradigm shift in rock mass characterization, moving from empirical classification toward a more mechanistic understanding of rock behaviour. Future research should focus on bridging the gap between traditional classification systems and advanced numerical models. This research contributes to a different perspective on evaluating the stability of underground mining operations.
Hardwaresoftware implementation of a test-bed for the management of sensor networks
Creators: name: Abdo, Jamal
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2006
Subjects: subject: Engineering, Electronics and Electrical.

description: The emergence of new technologies in the wireless realm, coupled with recent advancements in the area of Micro Electro-Mechanical Systems (MEMS) sensor technology, have led the way for current and innovative research in the area of sensor networks. The potential applications of sensor networks range from biomedical to health, military, habitat monitoring, environmental, industrial, traffic control, among others, so more and more wireless sensor networks are being integrated into our daily lives. An implementation of a sensor network test-bed is presented in this thesis. The test-bed is implemented by combining a FPGA-based Nios II Development kit, Cyclone Edition serially connected to a MIB510 equipped with a MICA2 node with ID0. This test-bed can be used for developing tools for monitoring and managing heterogeneous sensor networks. This thesis deals with building a test-bed that consists of a PC which manages the network through a sensor management Graphical User Interface (GUI) and communicates with the sensor nodes through a Base Station.
Routinization of prenatal screening: Women's perspectives on decision making about screening uptake
Creators: name: Chorny, Yelena
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2006
Subjects: subject: Health Sciences, Obstetrics and Gynecology.
subject: Health Sciences, Public Health.
subject: Health Sciences, Epidemiology.

description: Background. Prenatal screening programs, in which screening is routinely offered to all pregnant women, have been implemented in a number of regions in Canada and other countries. Such programs are typically marketed as having the goal of providing women with the opportunity to make an informed choice about screening. Studies have suggested, however, that structural and cultural factors related to the rise of surveillance medicine have combined to effectively routinize the offer and uptake of prenatal screening, potentially hindering the capacity to ensure true autonomy and informed choice for women. Purpose. This study was conducted to explore the concept of the routinization of prenatal screening by examining women's accounts of their decision making about accepting or declining prenatal screening and what judgments they made about the value of prenatal screening for themselves and others. Methods. This was a descriptive, exploratory study using qualitative research methods for data collection and analysis. Data were collected from 18 women who had delivered healthy babies using semi-structured interviews. Both data collection and analysis were conducted using methods of Grounded Theory. Results. Routine uptake of prenatal screening was described by many women. Themes arising from interviews included: the recognition of choice and/or the need for deliberation; the ways in which prenatal screening is presented; the value placed on the information provided by screening; varying conceptions of risk; and the relationships between prenatal screening, abortion, disability, and responsibility. Conclusions. Factors contributing to the routinization of prenatal screening operate at a variety of levels: individual, structural, and cultural. Further research is needed to clarify and quantify the effects of routine acceptance of screening on women and their families, and to determine the most effective and appropriate ways of ensuring that women's choices are truly informed and deliberated.
Using social cognitive theory to identify key determinants of physical activity in people living with multiple sclerosis
Creators: name: Dunlop, Nicole L
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2006
Subjects: subject: Health Sciences, Public Health.
subject: Health Sciences, Recreation.
subject: Psychology, General.

description: Multiple sclerosis is a debilitating neurological disease with few successful symptom alleviating interventions available to the MS population. Preliminary research has shown that PA may aid in alleviating both psychological and physical symptoms; thus, improving overall quality of life. Objective. (1) To determine which social cognitive determinants (i.e., barrier efficacy, task efficacy, outcome expectation, social support, modeling, mood, and environment) would predict PA. (2) To determine whether barrier efficacy, task efficacy, and outcome expectation would mediate the social support, modeling, mood, and environment/PA relationships. Study Design & Participants. 76 participants (58 female and 18 male) completed a baseline questionnaire concerning social cognitive determinants and a 1-month telephone follow-up concerning PA participation. Results. The model accounted for 41% of the variance in PA. Block 1 accounted for 23% of the variance with traffic and modeling of friends making significant contributions to PA. Block 2 of the regression accounted for an additional 18% of variance with barrier efficacy (beta= .25; p<.05) and outcome expectation (beta= .21; p<.05) being significant predictors of PA. Outcome expectations mediated the modeling-friends/PA relationship. Barrier efficacy partially mediated the traffic/PA relationship. Conclusion. PA interventions should aim at increasing barrier efficacy and outcome expectations, and also on important social cognitive variables including barrier efficacy, outcome expectations, social support-friends, modeling-friends and environment (i.e., traffic). The MS patient's PA environment should be safe (i.e., no traffic) and include access to home use PA equipment (i.e., aerobic vide/DVD).
ASASSN-15LH: A SUPERLUMINOUS ULTRAVIOLET REBRIGHTENING OBSERVED by SWIFT and HUBBLE
Creators: name: Brown, Peter J.
name: Yang, Yi
name: Cooke, Jeff
name: Olaes, Melanie
name: Quimby, Robert M.
name: Baade, Dietrich
name: Gehrels, Neil
name: Hoeflich, Peter
name: Maund, Justyn
name: Mould, Jeremy
name: Wang, Lifan
name: Wheeler, J. Craig
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 510103
subject: Cosmology and extragalactic astronomy

description: We present and discuss ultraviolet and optical photometry from the Ultraviolet/Optical Telescope, X-ray limits from the X-Ray Telescope on Swift, and imaging polarimetry and ultraviolet/optical spectroscopy with the Hubble Space Telescope, all from observations of ASASSN-15lh. It has been classified as a hydrogen-poor superluminous supernova (SLSN I), making it more luminous than any other supernova observed. ASASSN-15lh is not detected in the X-rays in individual or co-added observations. From the polarimetry we determine that the explosion was only mildly asymmetric. We find the flux of ASASSN-15lh to increase strongly into the ultraviolet, with an ultraviolet luminosity 100 times greater than the hydrogen-rich, ultraviolet-bright SLSN II SN 2008es. We find that objects as bright as ASASSN-15lh are easily detectable beyond redshifts of similar to 4 with the single-visit depths planned for the Large Synoptic Survey Telescope. Deep near-infrared surveys could detect such objects past a redshift of similar to 20, enabling a probe of the earliest star formation. A late rebrightening-most prominent at shorter wavelengths -is seen about two months after the peak brightness, which is itself as bright as an SLSN. The ultraviolet spectra during the rebrightening are dominated by the continuum without the broad absorption or emission lines seen in SLSNe or tidal disruption events (TDEs) and the early optical spectra of ASASSN-15lh. Our spectra show no strong hydrogen emission, showing only Lya absorption near the redshift previously found by optical absorption lines of the presumed host. The properties of ASASSN-15lh are extreme when compared to either SLSNe or TDEs.
Risk governance of advanced materials
Creators: name: Schwirn, Kathrin
name: Völker, Doris
name: Haase, Andrea
Publisher: name: Umweltbundesamt
Year: 2021
Subjects: subject: Globale Aspekte
subject: Neuartige Materialien
subject: Umweltveränderung
subject: advanced materials
subject: risk governance
subject: chemical safety
subject: early warning system
subject: safe and sustainable by design
subject: regulatory preparedness
subject: Chemicals
subject: Waste | Resources
subject: Health
subject: Sustainability | Strategies | International matters

description: Neuartige Materialien haben das Potenzial, technische Lösungen für drängende globale Herausforderungen zu bieten. Derzeit lässt sich aber nur schwer ableiten, welche neuartigen Materialien in Zukunft tatsächlich zum Einsatz kommen werden und inwieweit die bestehenden (rechtlichen) Rahmenbedingungen geeignet sind, ihre Sicherheit sowie andere Aspekte der Nachhaltigkeit zu berücksichtigen. Dieses Dokument fasst die aktuelle Perspektive der Bundesoberbehörden UBA, BfR und BAuA zusammen, die darauf abzielt, eine gute Governance für neuartige Materialien zu etablieren, um ihre verantwortungsvolle Entwicklung, Verwendung und Lebensende unter Berücksichtigung der Sicherheit für Mensch und Umwelt sicherzustellen. Quelle: www.umweltbundesamt.de
description: Advanced materials have the potential to provide technical solutions for pressing global challenges, i.e. for energy revolution, digitalisation, or health care. However, it is currently difficult to derive which advanced materials will be actually used in the future and to what extent the existing legal frameworks or other measures are suitable to address their safety as well as other aspects of sustainability along their life cycle. This document summarises the current perspective of the higher federal authorities UBA, BfR and BAuA aiming to establish good governance of advanced materials to ensure their responsible development, use and end of life considering human and environment safety. Quelle: www.umweltbundesamt.de
description: Advanced materials have the potential to provide technical solutions for pressing global challenges, i.e. for energy revolution, digitalisation, or health care. However, it is currently difficult to derive which advanced materials will be actually used in the future and to what extent the existing legal frameworks or other measures are suitable to address their safety as well as other aspects of sustainability along their life cycle. This document summarises the current perspective of the higher federal authorities ⁠UBA⁠, ⁠BfR⁠ and BAuA aiming to establish good governance of advanced materials to ensure their responsible development, use and end of life considering human and environment safety.
Quantum Reference Frames for Lorentz Symmetry
Creators: name: Apadula, Luca
name: Castro-Ruiz, Esteban
name: Brukner, Časlav
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Since their first introduction, Quantum Reference Frame (QRF) transformations have been extensively discussed, generalising the covariance of physical laws to the quantum domain. Despite important progress, a formulation of QRF transformations for Lorentz symmetry is still lacking. The present work aims to fill this gap. We first introduce a reformulation of relativistic quantum mechanics independent of any notion of preferred temporal slicing. Based on this, we define transformations that switch between the perspectives of different relativistic QRFs. We introduce a notion of ''quantum Lorentz transformations'' and ''superposition of Lorentz boosts'', acting on the external degrees of freedom of a quantum particle. We analyse two effects, superposition of time dilations and superposition of length contractions, that arise only if the reference frames exhibit both relativistic and quantum-mechanical features. Finally, we discuss how the effects could be observed by measuring the wave-packet extensions from relativistic QRFs.
description: 15 pages, 8 figures
NBN Virtual School of Emerging Sciences: How to transform the world one scientist at a time...
Creators: name: Bailey, Nathan
name: Harte, Chris
name: Panizzon, Debra
Publisher: name: Swinburne
Year: 2024

description: The National Broadband Network (NBN) creates new opportunities for collaborative education. John Monash Science School, Monash University and Pearson Australia have joined together to provide the NBN Virtual School of Emerging Sciences (NVSES), linking together Year 10 students who are passionate about science. The programme provides access to experts in leading fields such as nanotechnology and astrophysics, and gives students the opportunity to be knowledge creators as well as problem solvers. With their experience designing real-world research projects to solve today and tomorrow's problems, graduates of the programme will be well-placed to contribute in their future workplaces. © 2012 Swinburne University of Technology.
Two experiments involving the detection of 14 MeV neutrons.
Creators: name: Malcolm, R.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1965
Subjects: subject: Physics, Nuclear.

description: Part I. An existing Time-of-Flight system was improved so that 14 MeV neutrons, after striking an oxygen target, could be detected with sufficient resolution to indicate whether the state excited was at 6 or 7 MeV. The new data obtained concerning angular distributions was compared with previous data, and agreement was sought with several theoretical models. Part II. Several detection devices, suitable for a spectrometer, which could operate with neutrons up to 14 MeV of energy were tried. One of the devices, a Li6I(Eu) crystal, cooled to the temperature of liquid air, proved quite promising. Once the difficulties of obtaining a good crystal are overcome, it appears that this device is quite suitable for studying neutron induced reactions in shielding materials.
Supplementary document for High-resolution 3D refractive index microscopy of multiple-scattering samples from intensity images - 4044047.pdf
Creators: name: Chowdhury, Shwetadwip
name: Chen, Michael
name: Eckert, Regina
name: Ren, David
name: Wu, Fan
name: Repina, Nicole
name: Waller, Laura
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Biomedical Engineering not elsewhere classified

description: Supporting Information 1