cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Systematic Review of Molecular Imaging Agents Targeting Bradykinin B1 and B2 Receptors
Creators: name: Lau, Joseph
name: Rousseau, Julie
name: Kwon, Daniel
name: Bénard, François
name: Lin, Kuo-Shyan
Publisher: name: Multidisciplinary Digital Publishing Institute
Year: 2020

description: Kinins, bradykinin and kallidin are vasoactive peptides that signal through the bradykinin B1 and B2 receptors (B1R and B2R). B2R is constitutively expressed in healthy tissues and mediates responses such as vasodilation, fluid balance and retention, smooth muscle contraction, and algesia, while B1R is absent in normal tissues and is induced by tissue trauma or inflammation. B2R is activated by kinins, while B1R is activated by kinins that lack the C-terminal arginine residue. Perturbations of the kinin system have been implicated in inflammation, chronic pain, vasculopathy, neuropathy, obesity, diabetes, and cancer. In general, excess activation and signaling of the kinin system lead to a pro-inflammatory state. Depending on the disease context, agonism or antagonism of the bradykinin receptors have been considered as therapeutic options. In this review, we summarize molecular imaging agents targeting these G protein-coupled receptors, including optical and radioactive probes that have been used to interrogate B1R/B2R expression at the cellular and anatomical levels, respectively. Several of these preclinical agents, described herein, have the potential to guide therapeutic interventions for these receptors.
Guar Gum/Montmorillonite Nanocomposites and Their Potential Application in Drug Delivery
Creators: name: Dziadkowiec, Joanna
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2016
Subjects: montmorillonite
guar gum
biopolymer-clay nanocomposite
nanocomposite
drug delivery
Ibuprofen

description: Clays are ubiquitous near the Earth’s surface. Medicinal properties of these nontoxic minerals have been intuitively recognized since ancient times. Up till now, clays have been used in pharmaceutical formulations as active agents and excipients. Currently, there is an urgent need to seek advanced, functional materials with low environmental impact. Answering to that trend, clay-biopolymer nanocomposites were synthesized in this thesis and applied in a drug delivery system. In the first part of the thesis, Portuguese clay from a bentonite deposit in Benavila (Portugal) was collected from six sampling sites and characterized. The highest content of clay fraction, approximately 30%, was found in two of the sampling sites. After purification, the smectite-rich samples were analyzed with respect to clay content, mineralogical and chemical composition, physicochemical and mechanical properties. SEM-EDS revealed that the smectite present in the ore is montmorillonite with varying Fe content. This was also indicated by the means of XRD, XRF and FTIR. The Benavila sample, which was richest in smectite, as well as the sodium Wyoming montmorillonite from the Source Clay Repository (SWy-2) were successfully used to synthesize clay-biopolymer nanocomposites. The chosen biopolymers were the plant-extracted polysaccharides – neutral guar gum and its cationic form. The obtained materials were thoroughly characterized by XRD, TGA and NMR, and the intercalated structure was reported. The prepared nanocomposites were loaded with an anti-inflammatory drug ibuprofen and tested in an in-vitro release system. The drug-loaded materials were characterized with XRD, TGA and NMR. A membrane diffusion method was chosen as a dissolution testing strategy and the drug was quantified by UV-Vis spectroscopy. The materials exhibited improved properties as a noticeable reduction of release rate was achieved.
An exploration of sex-role stereotyping in Australian, award-winning children’s picture books
Creators: name: Kok, Jodi
Publisher: name: Swinburne
Year: 2024

description: A content analysis of 25 award-winning Australian picture books was conducted to examine whether the incidence of sex-role stereotyping had decreased in Australian picture books since the mid 1970s. Comparing a sample of books from the mid 70s to a sample from the 00s, three potential areas of stereotyping were assessed: ratios of male to female characters in central roles, titles, illustrations, and as animal characters; activities the main characters were depicted engaging in; and an exploration of the text for traits that main characters exhibited. The hypothesis that in the early sample there would be more male than female characters in all ratio counts, but that no such difference would exist in the current sample was only partially supported. Whilst no statistically significant differences were found, a trend towards equity between the early and recent sample was found in the categories of titles and animal characters. The hypothesis that, in keeping with culturally prescribed stereotypes, male characters would be found to engage in significantly more instrumental-independent activities and masculine traits than females, and that females would engage in significantly more passive-dependent activities than male characters was not supported. Many previous studies had indicated that in terms of activities and traits, male characters were more rigidly stereotyped than female characters. Thus it was hypothesised that female characters would be found to engage in significantly more instrumental-independent activities and masculine traits than male characters would be found to engage in passivedependent activities and feminine traits, but this failed to gain support. It was concluded that, in the current sample, little stereotyping was present, and that areas of disparity had shown a trend towards equality in the current sample.
title: Kontrol'nye spiski dlja izucenija i ocenki sostojanija promyslennych ob'ektov s opasnymi dlja vody vescestvami i preparatami v celljulozno-bumaznoj promyslennosti
title: Контрольный список № ЦТ. 6: Отбелка
titleType: AlternativeTitle
Creators: name: Winkelmann-Oei, Gerhard
Publisher: name: My University
Year: 2016
Subjects: subject: Papierindustrie
subject: Zellstoffindustrie
subject: Gewässerschutz
subject: Wasserverunreinigung
subject: Risikomanagement
subject: Leitfaden
subject: paper industry
subject: pulp industry
subject: pulp production
subject: water protection
subject: water pollution
subject: water pollutants
subject: risk management
subject: checklist
subject: guideline
subject: Chemikalien
subject: Chemicals

description: Diese branchenspezifischen Checklisten bilden einen Leitfaden für die Untersuchung und Beurteilung des Zustandes von Anlagen mit wassergefährdenden Stoffen und Zubereitungen in der Zellulose- und Papierindustrie. Dabei bieten sie eine Übersicht über die verschiedenen Handlungsfelder sowie einen nach Produktionsbereichen aufgeteilten Bereich um potentielle Risikoquellen und Modernisierungsziele zu identifizieren. Quelle: Bericht
description: Эти отраслевые контрольные листы представляют собой руководство по проверке и оценке состояния установок с вредными для водных ресурсов материалами и растворами в целлюлозно-бумажной промышленности. При этом они предлагают обзор различных сфер деятельности, а также сферы, разделенной по производственным отраслям, для идентификации потенциальных источников риска и целей модернизации.
Detecting cylinders in 3D range data using model selection criteria
Creators: name: Gheissari, Niloofar
name: Bab-Hadiashar, Alireza
Publisher: name: Swinburne
Year: 2024

description: In this paper, we use a model selection criterion to decide whether two cylinders should be merged as a single cylinder or they should be left separated. We compare and evaluate an extensive number of different model selection criteria for this purpose and examine which factors can affect their performance. We conclude that SSC, GIC, MCAIC and CAIC have a better performance (for this particular application) compared to the other criteria.
Near-Surface Ground Ice Conditions In University Valley, McMurdo Dry Valleys of Antarctica.
Creators: name: Lapalme, Caitlin
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2015
Subjects: Permafrost
Ground ice
Polygon
Cryostructure
McMurdo Dry Valleys
Antarctica
CT scan

description: This study aims to quantify ground ice content and describe the cryostructures and sediment in 15 ice-bearing permafrost cores collected from nine sand-wedge polygons in University Valley. The objectives were reached through laboratory measurements and computed tomodensitometric (CT) scanned image analysis of the permafrost cores. The soils in the valley were predominantly medium-sand. Four types of cryostructures were present in the cores: structureless, suspended, crustal and porphyritic. Excess ice content ranged from 0 to 93%, gravimetric water content ranged from 13 to 1881% and volumetric ice content varied from 28 to 93%. Median excess ice, volumetric ice and gravimetric water contents significantly increased in the top 20 cm of the cores taken from the polygon shoulders with increasing distance from University Glacier. Ground ice was preferentially stored in the centre of the investigated polygons where the ground surface remains cryotic throughout the year. Conversely, higher ground ice contents were measured in the shoulders of the investigated polygon where the ground surface is seasonally non-cryotic. CT-scanned images were shown to reasonably assess the distribution and presence of excess ice in permafrost cores taken from a cold and hyper-arid environment. The results of this thesis provide the first cryostratigraphic study in the McMurdo Dry Valleys of Antarctica.
Seed pre-treatment strategy effect on the emergence and vegetative yield of fluted pumpkin (Telfairia occidentalis (F.) Hook).pdf
Creators: name: Elemi, Ekama Derrick
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 300203
subject: Agricultural land planning
classificationCode: 300204
subject: Agricultural management of nutrients
classificationCode: 300205
subject: Agricultural production systems simulation

description: A field experiment was conducted at the Teaching and Research Farm, University of Calabar, Calabar during the early cropping season of April – September, 2017 and 2018 to investigate the effects of seed pretreatment strategies on emergence and vegetative yield of fluted pumpkin. The study was arranged in Randomized Complete Block Design (RCBD) with three replications. Treatments included five levels of shed drying (in days) – 1, 2, 4, 6 and the control in which seeds were sown as soon as extracted from the pods. Data were collected on percentage germination, vine length (cm), number of leaves per plant, number of regrowth, leaf area (cm2 ) as well as fresh and dry weight of shoots. Data were subjected to analyses of variance (ANOVA) procedure and significant means compared using Fishers’ Least Significant Difference at 5 % probability level. Results revealed that drying fluted pumpkin seeds under shed for 4 days prior to sowing enhanced germination percentage (85.20 and 90.00 %), vine length, regrowth (robust development of lateral branches) as well as shoot weight (2.59 t/ha), leaf fresh weight (3.18 t/ha) in 2017 and leaf fresh weigh (3.42 t/ha) in 2018. Drying seeds of fluted pumpkin for four days is hereby recommended for adoption by farmers for optimum yield in Calabar and its environs. Keywords: Sustainable yield, fluted pumpkin, shed dried, optimum yields, leafy vegetable
Individual Variability in Response to Social Stress in Dairy Heifers
Creators: name: Nogues, Emeline
name: Lecorps, Benjamin
name: Weary, Daniel M.
name: Von Keyserlingk, Marina A. G.
Publisher: name: Multidisciplinary Digital Publishing Institute
Year: 2020

description: Regrouping is associated with increased aggression, and disruption of time-budgets. Individuals vary in how well they cope with social stress. Our objective was to describe individual differences in agonistic behavior in dairy heifers after regrouping, and determine how time-budget and behavioral synchronization were affected by these coping strategies. A total of 30 heifers were individually regrouped at 5-months of age into stable groups of 12 unfamiliar animals. For 24 h, agonistic behaviors initiated and received by the regrouped heifer were continuously recorded, and standing, resting and feeding time and synchronization were sampled every 5 min. Scores of engagement in agonistic interactions and avoidance of interactions were calculated for each regrouped heifer. Linear mixed effects models were used to assess whether these two response types were related, and how variation in these responses related to activity and synchronization. Engaged heifers displayed lower avoidance and spent more time feeding. Avoidant heifers spent less time feeding and resting, and were less synchronized while feeding. We conclude that dairy heifers differ in social coping strategy when regrouped through different levels of engagement and avoidance, and that these differences affected their time-budget and behavioral synchronization.
Quality in use: addressing and validating affective requirements
Creators: name: Bentley, B. Todd
Publisher: name: Swinburne
Year: 2024

description: From a user's perspective, product quality has typically been equated to usability, where the primary focus is performance (i.e. efficiency and effectiveness) and user satisfaction. This view on quality has been adequate to validate the 'fitness for purpose' for many products. However, many other products, such as computer games or at-home-technologies, are not based solely on performance-based qualities. By defining and validating the quality of these non-performance-based technologies using the same measures as performance-based technologies fails to address a key quality - the ability of the product to create fun, enjoyment, or other user affective experiences. This thesis investigates system quality issues in non-performance-based technologies, primarily addressing affect. It explores what affect is in relation to system quality, how can affect impact quality in use, what product characteristics can aid in the creation of positive user affect, and how to validate whether a product successfully created the desired user affect. To begin, current knowledge about the relationship between systems development, quality in use, and affect is summarised. Concepts used synonymously with affect were studied (e.g. satisfaction, user experience, emotion). It was found that these are related to affect, but are not affect themselves. Following this, a broad survey asking users to identify product characteristics that create positive affect during use is reported on. Results showed that the system characteristics of learnability, feedback, curiosity, and user cooperation can each increase and enhance positive user affect experienced. If it is an aim for the system to create an affective experience in a user then this should be considered a requirement of the system; and as a requirement, it is necessary to validate that it achieves this aim. To this end, a laboratory study exploring psycho-physiology and cued-recall debrief as methods to evaluate user affect was conducted. Results revealed that both methods show promise for evaluating user affect. Cued-recall is capable of identifying specific user affects, but is limited because it relies on the user to report these affects. Physiological measures can objectively identify when a person is experiencing affect, but is limited because it is not possible to determine what affect is being experienced. Combined, these methods represent an optimal and viable evaluation method for user affect.
Micro-tip manipulated origami for robust twisted few-layer graphene
Creators: name: Zou, Ruo-Jue
name: Deng, Long
name: Xue, Si-Min
name: Cai, Feng-Fei
name: Tong, Ling-Hui
name: Zhang, Yang
name: Tian, Yuan
name: Zhang, Li
name: Zhang, Lijie
name: Qin, Zhihui
name: Yin, Long-Jing
Publisher: name: arXiv
Year: 2025
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Twisted few-layer graphene (tFLG) has emerged as an ideal model system for investigating novel strongly correlated and topological phenomena. However, the experimental construction of tFLG with high structural stability is still challenging. Here, we introduce a highly accessible method for fabricating robust tFLG by polymer micro-tip manipulated origami. Through using a self-prepared polymer micro-tip, which is composed of multiple dimethylpolysiloxane, poly(vinyl chloride), and graphite sheets, to fold graphene layers, we fabricated tFLG with different twist angles (0°-30°) and various layers, including twisted bilayers (1+1), twisted double-bilayers (2+2), twisted double-trilayers (3+3), and thicker layers. Even ABC-stacked tFLG were created, such as twisted ABC/ABC and ABC/ABA graphene coexisting in an ABC-ABA domain wall region. We found that the origami-fabricated tFLG exhibits high stability against thermal and mechanical perturbations including heating and transferring, which could be attributed to its special folding and tearing structures. Moreover, based on the rich types of samples, we revealed twist-angle and stacking-order dependent Raman characteristics of tFLG, which is valuable for understanding the stacking-modulated phonon spectroscopy. Our experiments provide a simple and efficient approach to construct structurally robust tFLG, paving the way for the study of highly stable twisted van der Waals heterostructures.
description: 17 pages, 5 figures
Similitudes entre l'Ontario et le Québec? Le cas des demandes d'instauration des tribunaux islamiques
Creators: name: Charbonneau Larcher, Claudie
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2011
Subjects: Ontario
Québec
Culture juridique
Tradition juridique
Polémique sur les demandes d'instauration des tribunaux islamiques

description: Cette étude s'attache à la compréhension des cultures juridiques de l'Ontario (Common Law) et du Québec (droit civil), ainsi qu'aux représentations sociales divergentes du droit auxquelles elles renvoient. La période d'enquête est celle de la polémique sur l'instauration des tribunaux islamiques (2003 à 2005) qui aura enfanté la motion parlementaire québécoise S'opposer à l'implantation des tribunaux dits islamiques au Québec et au Canada et la Loi ontarienne de 2006 sur l'arbitrage. L'analyse proposée vise à mettre en relief la présence, dans les deux provinces, de tangentes juridiques éloignées, structurées par les différentes cultures juridiques que sont la Common Law et le droit civil.
Supplementary document for Machine learning algorithms to control concentrations of carbon nanocomplexes in biological medium via optical absorption spectroscopy: how to choose and what to expect? - 5398835.pdf
Creators: name: Sarmanova, Olga
name: Laptinskiy, Kirill
name: Burikov, Sergey
name: Khmeleva, Maria
name: Fedyanina, Anna
name: Tomskaya, Alexandra
name: Efitorov, Aleksandr
name: Dolenko, Sergey
name: Dolenko, Tatiana
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Detailed results of learning algorithms and pseudocode
Weiterentwicklung des Energieeffizienz-Benchmarkings in der Industrie durch Nutzbarmachung der Datenströme aus energiepolitischen Instrumenten zur automatischen Generierung von Statistiken für das Energieeffizienz-Benchmarking
Creators: name: Kühn, Armin
name: Freund, Mariann
name: Uzsilaityte-Schulte, Lina
Publisher: name: My University
Year: 2018
Subjects: subject: Energieeffizienz
subject: Benchmarking
subject: Industrie
subject: Benchmarks
subject: EN 16231
subject: Berichtspflichten
subject: energiepolitische Instrumente
subject: Energiekennzahl
subject: ISO 50006
subject: Klima | Energie

description: Im Rahmen dieses Vorhabens werden Möglichkeiten zur Änderung bzw. Weiterentwicklung der Berichterstattungsmechanismen energiepolitischer Instrumente aufgezeigt, um eine breite Datenbasis für die Ermittlung von branchenbezogenen Energieeffizienz-Benchmarks zu schaffen. Dazu wird eine Methodik für die Bildung von Energieeffizienz-Kennzahlen festgelegt, welche die Wahl der Betrach-tungsebene und relevante Vorarbeiten zum Thema berücksichtigt. Darauf aufbauend wird eine Systematik für den erforderlichen Datenbedarf spezifiziert. Anhand dieser Systematik werden konkrete Berichterstattungsmechanismen auf Eignung als Datenbasis für ein Energieeffizienz-Benchmarking-System hin analysiert. Für die Auswahl geeigneter energiepolitischer Instrumente wird eine Liste in Frage kommender Instrumente identifiziert und anhand relevanter Kriterien bewertet. Die dabei letztlich verbleibenden fünf energiepolitischen Instrumente weisen jedoch eine unzureichende Datenbasis für die Bildung aussagekräftiger Energiekennzahlen auf und erfordern eine Weiterentwicklung der Berichtspflichten. Dieses Zwischenergebnis lässt sich aus den einzelnen Erläuterungen und Vorschlägen gewinnen. Eine Weiterentwicklung der analysierten Berichtspflichten ist jedoch mit wesentlichem Aufwand bei unklarem Nutzen verbunden, wie Diskussion und Bewertung des Zwischenergebnisses unter Einbeziehung von Expertenmeinungen ergibt. Aus diesem Grund wird zusätzlich eine alternative Variante zum Aufbau eines branchenbezogenen Energieeffizienz-Benchmarking-Systems nach Vorbild des in den USA entwickelten ENERGY STAR-Ansatzes beschrieben und Vorgeschlagen. Quelle: Forschungsbericht
description: Mit dem Vorhaben sollte es ermöglicht werden, die Datenströme aus energiepolitischen Instrumenten zur automatischen Generierung von Energieeffizienz-Benchmarkingdaten zu nutzen. Im Rahmen der Projektarbeiten zeigte sich, dass die dabei letztlich verbliebenen fünf energiepolitischen Instrumente Besondere AusgleichsregelungSpitzenausgleichEnergieauditpflicht nach EDL-GEU-Emissionshandel undStrompreiskompensationeine unzureichende Datenbasis für die Bildung aussagekräftiger Energiekennzahlen aufweisen. Daher wurde vom Forschungsnehmer abgeraten, Energieeffizienz-Benchmarkingdaten aus der Berichterstattung energiepolitischer Instrumente weiter zu entwickeln.
Deciphering the multi-target therapeutic capabilities of Ocimum tenuiflorum Linn. Compounds against systemic lupus erythematosus and inflammatory bowel disease: a network pharmacology and molecular modelling approach
Creators: name: Kumar, Satish
name: Sarkar, Biswatrish
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified

description: The coexistence of Systemic Lupus Erythematosus (SLE) and Inflammatory Bowel Disease (IBD) is a rare and hard-to-diagnose multisystem autoimmune disorder. Allopathic treatment approaches often fall short in managing both conditions simultaneously, as specific medications targeting this dual manifestation are lacking. In such instances, herbal medicine can offer a potential solution through its holistic approach. Ocimum tenuiflorum (O. tenuiflorum) a rich source of bioactive compounds belonging to Lamiaceae family. This study employs network pharmacology and molecular modelling to unveil the multi-target and multi-pathway mechanisms of O. tenuiflorum as a complementary therapy. A total of 423 common targets were obtained, among which AKT1, TNF, SRC, EGFR, HIF1A, HSP9AA, BCL2, and STAT3 were identified as the key targets. Lastly, molecular modelling validated the strong binding affinity between O. tenuiflorum ‘s compounds and the identified targets. In conclusion, these investigations provide new insight for further study of O. tenuiflorum towards the management of SLE and IBD.
What exactly is entrepreneurial spirit? A conceptual framework and empirical evidence
Creators: name: Thyil, Vijaya
name: Durden, Geoffrey
Publisher: name: Swinburne
Year: 2024

description: The indispensable role of entrepreneurial spirit of individuals, firms and regions in building strong entrepreneurial cultures, sustaining global competitive advantage and promoting economic growth has been widely acknowledged, and researchers have identified some distinguishing characteristics of entrepreneurial spirit in individuals, firms and regions. However, there is a lack of integration of the theories, and gaps in the explanation of the process as to how entrepreneurial spirit is triggered, nurtured and sustained. This paper presents a comprehensive framework that synthesizes the diverse theories in the literature and presents an in-depth perspective of the process that leads to sustainability of entrepreneurial spirit, using data from twenty-three small and medium-sized firms in Australia. Findings are useful for effective policy planning and targeted support.
Supplementary document for Machine learning algorithms to control concentrations of carbon nanocomplexes in biological medium via optical absorption spectroscopy: how to choose and what to expect? - 5398835.pdf
Creators: name: Sarmanova, Olga
name: Laptinskiy, Kirill
name: Burikov, Sergey
name: Khmeleva, Maria
name: Fedyanina, Anna
name: Tomskaya, Alexandra
name: Efitorov, Aleksandr
name: Dolenko, Sergey
name: Dolenko, Tatiana
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Uncategorized

description: Detailed results of learning algorithms and pseudocode
Ground Ice Content and Geochemistry of Active Layer and Permafrost in Northwestern Arctic Canada
Creators: name: Fontaine, Marielle
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2016
Subjects: geochemistry
thaw unconformity
active layer
relict active layer
permafrost
northwestern Arctic Canada

description: This study aimed to contribute to baseline knowledge of permafrost geochemistry within the uppermost 3-4 m of permafrost at 8 sites on the Peel Plateau and east of the Mackenzie Delta, NWT (67-68oN). The following variables were measured: gravimetric water content (GWC), pore water conductivity (PWC), leachate conductivity (LC), dissolved ions by ICP-AES (i.e. Ca, SO4, Mg, Fe, K, Na, Mn, Cl), organic carbon content (calculated by linear regression from organic matter content), as well as inorganic carbon content (obtained from loss on ignition analysis). PWC was positively correlated to GWC and values were generally at least 5 times less than LC values, likely underestimating total dissolved solutes using the former method. LC increased with depth to reach maximum values below the paleo thaw unconformity (>10 mS/cm). Carbon content typically remained low throughout the cores with the exception of samples associated to the shallow-rooted vegetation cover at the ground surface. Results showed that the active layer, relict active layer and the permafrost below the thaw unconformity can be divided into three statistically significant layers. PCA results indicated some spatial patterns with increasing LC values at greater depth, suggesting that layer geochemical profiles reflect varying degrees of soil chemical weathering processes since the early Holocene.
Experimental Investigations of Flow Development, Gap Instability and Gap Vortex Street Generation in Eccentric Annular Channels
Creators: name: Choueiri, George H.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2014
Subjects: eccentric annular channel
annular flow
gap instability
gap vortex street
eccentricity
inlet conditions
diameter ratio
Reynolds number

description: Isothermal flow development, gap instability, and gap vortex street generation in eccentric annular channels have been studied experimentally. A representative paradigm of a flow in a highly eccentric annular channel was examined for a channel having an inner-to-outer diameter ratio d/D = 0.50 and an eccentricity e = 0.8 for a Reynolds number Re = 7300. Observation of the flow development has identified three distinct regions: the entrance region, the fluctuation-growth region and the rapid-mixing region. Weak quasi-periodic velocity fluctuations were first detected in the downstream part of the entrance region, and grew into very strong ones, reaching peak-to-peak amplitudes in the narrow gap that were nearly 60% of the bulk velocity. The dependence on inlet conditions, d/D, e and Re on the development and structure of flows was also investigated. Experimental conditions covered the ranges: 0 ≤ Re ≤ 19000, 0 ≤ e ≤ 0.9 and d/D = 0.25, 0.50 and 0.75. For Re < 7000, the Strouhal number, the normalized mid-gap axial flow velocity and the axial and cross-flow fluctuation intensities at mid-gap were found to increase with increasing Re and to depend strongly on inlet conditions. At higher Re, however, these parameters reached asymptotic values that were only mildly sensitive to inlet conditions. A map was constructed for the various stages of periodic motions vs. e and Re and it was found that, for e < 0.5 or Re < 1100, the flow was unconditionally stable as far as gap instability is concerned. For e ≤ 0.5, transition to turbulence occurred at Re ≈ 6000, whereas, for 0.6 ≤ e ≤ 0.9, the critical Reynolds number for the formation of periodic motions was found to increase with eccentricity from 1100 for e = 0.6 to 3800 for e = 0.9. The use of an empirically derived "mixing layer Strouhal number" permitted a universal description of gap vortex street periodicity in eccentric annular channels. This study has contributed to our understanding of the physical mechanisms that lead to gap instability and the development of a gap vortex street and the dependence of these flow phenomena on the channel geometry and the dynamic conditions of the flow.
Supplementary document for Ring-shaped optical trap based on acousto-optic tunable spatial filter - 5398905.pdf
Creators: name: Obydennov, Dmitry
name: Yushkov, Konstantin
name: Molchanov, Vladimir
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Photonics and Electro-Optical Engineering (excl. Communications)

description: Supplemental document includes calculated optical trap performance for different particle sizes.
Studying the Transformation of a Social Representation: The Case of Physicians in Televised Media
Creators: name: Ward, Natalie
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2014
Subjects: Social representations
Televised media
Physicians
Methodology

description: This thesis presents a methodology for, and a case study of, the transformation of a social representation. The basis of the thesis is derived from an understanding of representations as a complex, dynamic, pluralistic phenomena that both exist in time and draw their form and meaning from past and present knowledge(s). We are guided by an interest in understanding how one might study a social representation that is already an entrenched social phenomena and how one might go about studying such an entity in a systematic fashion over time. We devised a method through which data can be aggregated over a bound, measurable unit of time and analyzed systematically into core and peripheral systems, allowing for the study of transformation of representation of long duration. Our methodology thus embeds social representations in particular historical, temporal moments in order to assess the structural formation of the representation. To assess the applicability of our methodology, we undertook a study of the social representation of physicians in televised medical dramas. The case of the physician was selected because of their existence as a known social phenomenon of long-duration with a prominent, continuous social presence. In our exploration of this case, we sought to answer two questions. The first asks, ‘what is the social representation of the physician as presented in televised medical dramas’, while the second queries is ‘if and how this social representation has changed over time’. We present thus not only the identification and transformation of a representation, that of the physician, but we also offer a methodology with which to do so. Our methodology demonstrates that exploring representations in the past as a way to study the transformation of social representation has potential to generate new knowledge about old things. While the study of newly emerging phenomena presents an ideal time to study social representations, the study of older representations offers the opportunity to better understand how knowledge is created, changed, and re-created.
Application of Multiobjective Optimization in Chemical Engineering Design and Operation
Creators: name: Fettaka, Salim
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2012
Subjects: Multiobjective optimization
Pareto domain
Evolutionary algorithms
Styrene reactor
Shell-and-tube heat exchanger

description: The purpose of this research project is the design and optimization of complex chemical engineering problems, by employing evolutionary algorithms (EAs). EAs are optimization techniques which mimic the principles of genetics and natural selection. Given their population-based approach, EAs are well suited for solving multiobjective optimization problems (MOOPs) to determine Pareto-optimal solutions. The Pareto front refers to the set of non-dominated solutions which highlight trade-offs among the different objectives. A broad range of applications have been studied, all of which are drawn from the chemical engineering field. The design of an industrial packed bed styrene reactor is initially studied with the goal of maximizing the productivity, yield and selectivity of styrene. The dual population evolutionary algorithm (DPEA) was used to circumscribe the Pareto domain of two and three objective optimization case studies for three different configurations of the reactor: adiabatic, steam-injected and isothermal. The Pareto domains were then ranked using the net flow method (NFM), a ranking algorithm that incorporates the knowledge and preferences of an expert into the optimization routine. Next, a multiobjective optimization of the heat transfer area and pumping power of a shell-and-tube heat exchanger is considered to provide the designer with multiple Pareto-optimal solutions which capture the trade-off between the two objectives. The optimization was performed using the fast and elitist non-dominated sorting genetic algorithm (NSGA-II) on two case studies from the open literature. The algorithm was also used to determine the impact of using discrete standard values of the tube length, diameter and thickness rather than using continuous values to obtain the optimal heat transfer area and pumping power. In addition, a new hybrid algorithm called the FP-NSGA-II, is developed in this thesis by combining a front prediction algorithm with the fast and elitist non-dominated sorting genetic algorithm-II (NSGA-II). Due to the significant computational time of evaluating objective functions in real life engineering problems, the aim of this hybrid approach is to better approximate the Pareto front of difficult constrained and unconstrained problems while keeping the computational cost similar to NSGA-II. The new algorithm is tested on benchmark problems from the literature and on a heat exchanger network problem.
A multidisciplinary theory of entrepreneurship as a function of cultural perceptions of opportunity
Creators: name: Dana, Leo-Paul
name: Anderson, Robert B.
Publisher: name: Swinburne
Year: 2024

description: This paper flows from our evaluation of some 90 works exploring the entrepreneurship and enterprise activities Indigenous people around the world. The authors of these works discuss the contemporary economic activities of Indigenous peoples from a variety of perspectives, including anthropology, development studies, education, entrepreneurship, ethnic studies, geography, management, sociology and political science. By studying theses works we seek to determine if entrepreneurship among Indigenous people differs from entrepreneurship in mainstream western economies; and if it does, how and why.
The Performance of Deep Neural Networks in Differentiating Chest X-Rays of COVID-19 Patients From Other Bacterial and Viral Pneumonias
Creators: name: Elgendi, Mohamed
name: Nasir, Muhammad Umer
name: Tang, Qunfeng
name: Fletcher, Richard Ribon
name: Howard, Newton
name: Menon, Carlo
name: Ward, Rabab Kreidieh
name: Nicolaou, Savvas
Publisher: name: Frontiers in Medicine
Year: 2021

description: Chest radiography is a critical tool in the early detection, management planning, and follow-up evaluation of COVID-19 pneumonia; however, in smaller clinics around the world, there is a shortage of radiologists to analyze large number of examinations especially performed during a pandemic. Limited availability of high-resolution computed tomography and real-time polymerase chain reaction in developing countries and regions of high patient turnover also emphasizes the importance of chest radiography as both a screening and diagnostic tool. In this paper, we compare the performance of 17 available deep learning algorithms to help identify imaging features of COVID19 pneumonia. We utilize an existing diagnostic technology (chest radiography) and preexisting neural networks (DarkNet-19) to detect imaging features of COVID-19 pneumonia. Our approach eliminates the extra time and resources needed to develop new technology and associated algorithms, thus aiding the front-line healthcare workers in the race against the COVID-19 pandemic. Our results show that DarkNet-19 is the optimal pre-trained neural network for the detection of radiographic features of COVID-19 pneumonia, scoring an overall accuracy of 94.28% over 5,854 X-ray images. We also present a custom visualization of the results that can be used to highlight important visual biomarkers of the disease and disease progression.
Long versus short violent videogame play: do players habituate?
Creators: name: Callahan, Patrick
Publisher: name: Swinburne
Year: 2024

description: Numerous studies have found evidence that after playing violet videogames for 20 minutes, people experience short term increases in aggression, hostility, and anger. The current study used 62 males and 36 females from different backgrounds, aged 18-31 years, to investigate whether or not players habituate during longer, more realistic lengths of play. Participants were randomly assigned to play the first-person-shooter (FPS) game Quake III for either 20 or 60 minutes. State anger was measured pre-game and post-game using the State-Trait Anger Expression Inventory (STAXI). Participants in the long condition showed a smaller change in state anger (CSA) from pre-game to post-game than those in the short condition. This difference was however, not statistically significant. Results suggest that at some point between 20 and 60 minutes, players’ affective response begins to attenuate. Gaming habits were also investigated and it was found that on average gamers play for 106 minutes in one sitting. In addition, desensitization effects were investigated. Results supported the hypotheses that females would show a significantly larger CSA than males and that participants unexposed to violent videogames would show a significantly larger CSA than exposed participants. The current research suggests 106 minutes of game-play in future research will provide more representative results of the ‘real world’, in turn, helping future researchers predict the types of people who may be negatively affected by violent videogames in both the short-term and long-term.
Supplementary document for Ring-shaped optical trap based on acousto-optic tunable spatial filter - 5398905.pdf
Creators: name: Obydennov, Dmitry
name: Yushkov, Konstantin
name: Molchanov, Vladimir
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Photonics and Electro-Optical Engineering (excl. Communications)

description: Supplemental document includes calculated optical trap performance for different particle sizes.
Re-Writing “Pleasure and Necessity”: The Female Reader of Hegel’s Phenomenology of Spirit
Creators: name: Feeney, Amanda Lynn
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2016
Subjects: Hegel
Feminist Philosophy
Phenomenology of Spirit

description: This thesis demonstrates that “Pleasure and Necessity”, a section of Hegel’s Phenomenology of Spirit, both should and can be re-written, bringing the female reader out of the margins and into the texts of Hegel’s Absolute system. First, I demonstrate that the Phenomenology is a Bildungsroman that is both important for the reader’s philosophical education and Hegelian science itself. I provide an interpretation of “Pleasure and Necessity”, demonstrate that this section alienates the female reader, and discuss why Antigone is not a solution to this problem. Rather, I conclude that this stage should be re-written. Furthermore, I argue that “Pleasure and Necessity” can be re- written because the Phenomenology already contains the outline of its own re-writing insofar as it corresponds to the Logic. Finally, I re-write “Pleasure and Necessity” as “Impulse and Ought”, using new figures to re-stage the logical operation that occurs in the original text.
Aufmerksamkeits-Kompensations-Fragebogen
AKO
Creators: name: Niemann, H.
name: Volz-Sidiropoulou, E.
name: Gauggel, S.
Publisher: name: Psychometrikon, Aachen, Germany
Year: 2011
Subjects: subject: 610
subject: 150

description: Der „Aufmerksamkeits-Kompensations-Fragebogen“ dient der mehrdimensionalen Erfassung kompensatorischen Verhaltens im Bereich der Aufmerksamkeit. Er besteht aus 13 Items, welche drei Aspekte (Dimensionen) kompensatorischen Verhaltens messen: 1. Aspekt der Substitution: Einsatz von Strategien, welche das Anforderungsniveau der Aufgaben regulieren, so dass es den eigenen noch intakten Fähigkeiten entspricht („Regulation der Aufgabenbearbeitung“); 2. Aspekt der „Akkomodation“ / “Assimilation“: Erwartungen der Angehörigen oder anderer Personen sowie eigene Ziele werden verändert, so dass das Ungleichgewicht zwischen den eigenen Fähigkeiten und den Umweltanforderungen ausgeglichen werden kann („Adaptationsstrategien“); 3. Aspekt der Ergebnis-Absicherung: Strategien, mit deren Hilfe Bedingungen geschaffen werden, damit eine Aufgabe erfolgreich beendet werden kann, z.B. das Einfordern externer Hilfe oder das Setzen von Zeitvorgaben („Ergebniskontrollstrategien“). Die drei Sub-Scores lassen sich zu einem Gesamt-Summenscore zusammenfassen. Der Summenwert ist ein Ausdruck des Ausmaßes, in dem kompensatorisches Verhalten insgesamt zum Ausbalancieren von Aufmerksamkeitsdefiziten eingesetzt wird.
Predicting the Impact of COVID-19 on Australian Universities
Creators: name: Thatcher, Arran
name: Zhang, Mona
name: Todoroski, Hayden
name: Chau, Anthony
name: Wang, Joanna
name: Liang, Gang
Publisher: name: MDPI
Year: 2021

description: This article explores the impact of the novel coronavirus (COVID-19) upon Australia’s education industry with a particular focus on universities. With the high dependence that the revenue structures of Australian universities have on international student tuition fees, they are particularly prone to the economic challenges presented by COVID-19. As such, this study considers the impact to total Australian university revenue and employment caused by the significant decline in the number of international students continuing their studies in Australia during the current pandemic. We use a linear regression model calculated from data published by the Australian Government’s Department of Education, Skills, and Employment (DESE) to predict the impact of COVID-19 on total Australian university revenue, the number of international student enrolments in Australian universities, and the number of full-time equivalent (FTE) positions at Australian universities. Our results have implications for both policy makers and university decision makers, who should consider the need for revenue diversification in order to reduce the risk exposure of Australian universities.
Analysis of multiserver retrial queueing system: a martingale approach and an algorithm of solution
Creators: name: Abramov, Vyacheslav M.
Publisher: name: Swinburne
Year: 2024

description: The paper studies a multiserver retrial queueing system withm servers. Arrival process is a point process with strictly stationary and ergodic increments. A customer arriving to the system occupies one of the free servers. If upon arrival all servers are busy, then the customer goes to the secondary queue, orbit, and after some random time retries more and more to occupy a server. A service time of each customer is exponentially distributed random variable with parameter μ1. A time between retrials is exponentially distributed with parameter μ2 for each customer. Using a martingale approach the paper provides an analysis of this system. The paper establishes the stability condition and studies a behavior of the limiting queue-length distributions as μ2 increases to infinity. As μ2→∞, the paper also proves the convergence of appropriate queue-length distributions to those of the associated “usual” multiserver queueing system without retrials. An algorithm for numerical solution of the equations, associated with the limiting queue-length distribution of retrial systems, is provided.
"Think About the Women!": The New Anti-Abortion Discourse in English Canada
Creators: name: Gordon, Kelly
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2011
Subjects: abortion
women's studies
discourse
anti-abortion movement

description: This thesis offers an overview of the new rhetorical strategies of persuasion being implemented by the contemporary English Canadian anti-abortion movement. This thesis analyzes the main arguments, philosophical principles, narratives and other important rhetorical strategies used by the contemporary anti-abortion movement in English-speaking Canada. It seeks, in other words, to explain how the anti-abortion movement talks to Canadians and how it attempts to persuade them of anti-abortion views.