cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Conventional and multiple trellis-coded 8-PSK modulations over EHF mobile satellite channels.
Creators: name: Rao, Nan Yuan.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1994
Subjects: subject: Engineering, Electronics and Electrical.

description: The increasing demand of the frequency spectrum for land mobile satellite communication services has led to the approach of moving the current operating frequency up to EHF (30/20 GHz) band. In this thesis, the propagation characteristics of the EHF mobile satellite communication channel are estimated and modeled. Conventional and multiple trellis-coded modulation schemes designed for fading environment are considered for the EHF mobile satellite channel. The design criteria for optimum trellis-coded modulation scheme on the folding channel are studied. Through computer simulation, the performances of both coherent and differential trellis-coded modulation systems with selected coding schemes on the EHF channel models are evaluated. The effects of using channel state information and interleaving technique on the trellis-coded modulation systems are also studied. Finally the simulation results are presented and discussed.
Sunken Village Wet Site, Portland, OR
Creators: name: Matsui, Akira
Publisher: name: Washington State University
Year: 2008
Subjects: Wet-site archaeology
Archaeology

description: Akira Matsui, Chief Archaeologist, National Institute for Cultural Heritage, Nara, Japan, who passed too early from cancer a few years back, had a column in the Yomiuri Shimbun Newspaper, the most popular one in Japan with an estimated circulation of over 10 million (called the biggest newspaper in the world). He wrote his column about our collaboration in excavating the National Historic Landmark Sunken Village wet site in Portland Oregon in 2007--he sponsored the project. My son Jaered Croes, who runs www.textfugu.com, a Japanese language teaching site, help us translate the article. (see publications on the Sunken Village wet site 2009): Last September 2007, five fellow researchers and I went to Oregon in the United States of America to participate in an excavation. It all started when my old friend Professor Dale Croes from the South Puget Sound Community College emailed me saying: “I found some pits packed with acorns in an ancient Columbia River intertidal beach site called Sunken Village. Would you like to do a collaborative project there?” We knew that in the fall, the ancient Japanese Jomon people would store large amounts of acorns in storage pits so that during the passing winter they would have food. However, there is a difference between how Eastern and Western Japan went about this. Eastern Japan Jomon put their storage pits on top of a hill, and the West puts it at the bottom of a hill in a muddy, wet place. We didn't know the reason for this. When I asked Dale about the acorn pits, we hoped that we could get some ideas through this Oregon work. I've been part of the Higashimyo wet site research advisory board, Saga City Board of Education, coordinating the excavations and research since 2004. On the Ariake Sea, with the Kose River running along it, the early Jomon people lived there 7000 years ago. We found six shell middens, and around their bases we found 200 acorn storage pits. What surprised me was how many of the baskets were still preserved. By the time the excavation was over, the total number had risen to 730 basketry examples.
Mechanisms of effects of phytoestrogens on reproduction, steroidogenesis and steroid action in male rats
Creators: name: McVey, Mark
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2004
Subjects: subject: Chemistry, Biochemistry.
subject: Health Sciences, Nutrition.

description: The consequences of soy isoflavone consumption on steroidogenesis were examined in F1 male rats from a multi-generation reproduction study investigating the effects of diets varying in isoflavone content. F1 male rats were obtained from a multi-generation study where the parental generation was fed diets containing alcohol-washed soy protein supplemented with increasing amounts of Novasoy, a commercially available isoflavone supplement. A control group was maintained on a soy-free casein-based diet (AIN93G). Testicular and serum androgen levels were assayed with commercial kits and were approximately doubled at postnatal day (PND) 120 for rats fed a diet of elevated levels of isoflavones. Steroidogenic enzyme activities were significantly increased at PND 28 and immunohistochemistry revealed approximately 25% greater numbers of Leydig cells stained for steroidogenic factor 1 at both PND 28 and 120 amongst rats fed elevated levels of isoflavones, resembling high human consumption rates. These findings show that F1 male rats continuously exposed to a mixture of dietary soy isoflavones from conception onwards exhibit altered gene expression at PND 28, which may lead to increased microsomal steroidogenic enzyme activity at this age and serum and testicular androgen profiles in adulthood. (Abstract shortened by UMI.)
Language Ideologies and Mobility: A Political Economy Approach to Quebec City's English-speaking Minority
Creators: name: Caron, Daniel
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: English-language education
ethno-linguistic categories
language ideologies
mobility
official-linguistic minorities
political economy

description: Socio-economic processes have long underlined the value of language and ethno-linguistic categories in Canada. The Quiet Revolution, widely considered to be one such process, has resulted in the production of Quebec's English-speaking minority. Although recent studies pertaining to Quebec's English-speaking minority have largely focused on the construction of identity, little research has explored the perceived value of language. While Quebec City’s English-speaking minority is increasingly bilingual, figures suggest that its youth continues to migrate. Through a critical perspective, this thesis explores how Quebec City’s English-speaking minority is navigating the uneven distribution and rising value of bilingualism. Using a qualitative approach, I conducted 15 interviews with participants who attended an English-language high school in Quebec City. Results revealed that participants mobilized ethnic and economic language ideologies as a means to negotiate the value of their linguistic practices and that these language ideologies structured mobility and enabled participants to reposition themselves within a new linguistic market.
Performance evaluation and analysis of datagram congestion control algorithms in IP networks
Creators: name: Chen, Hanliu
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2008
Subjects: subject: Engineering, Electronics and Electrical.
subject: Computer Science.

description: Providing a TCP-friendly congestion control protocol to support multimedia applications has been a great challenge for many researchers. DCCP (Datagram Congestion Control Protocol) is a promising protocol that was proposed recently. This thesis proposes to use VCP (Variable-structure congestion Control Protocol) to overcome the shortcomings of RED (Random Early Detection). We make mathematical analysis and run OPNET simulation to validate DCCP/VCP congestion control strategy. We have also conducted some performance analysis and made comparison with some other related traffic congestion control strategies under both wired and WiMAX environments. The simulation results show that DCCP/VCP can maintain a shorter buffer queue size than the other congestion control strategies. DCCP/VCP also provides zero packet drop rate which solves the random packet loss problem in RED router.
Modulation of ion channel activity in vascular muscle cells by neuropeptide Y.
Creators: name: Xiong, Zhi-Gang.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1995
Subjects: subject: Health Sciences, Pharmacology.

description: Neuropeptide Y (NPY) is a 36 amino acid peptide that is co-stored and co-released with noradrenaline from perivascular sympathetic nerves. In the present project, I tested the hypothesis that the vasopressor effect of NPY is related to its modulation of ion channel activities. The effects of NPY on Ca$\sp{2+}$-channel currents in freshly isolated vascular smooth muscle cells (VSMC) from the rat tail artery were studied with the perforated-patch recording technique. At a testing potential of +10 mV, the amplitude of inward current was increased by 46% in the presence of NPY 150 nM. The effects of NPY on both Ca$\sp{2+}$ current amplitude and steady-state activation were much weaker compared to the dihydropyridine agonist Bay K 8644. Unlike Bay K 8644 which shifted steady-state inactivation curve toward less positive membrane potential by 14.3 mV, NPY had no signifiant effect on steady-state inactivation of the current. A synergistic action between NPY and Bay K 8644 was observed as the combined effect of NPY and Bay K 8644 was larger than the sum of NPY and Bay K 8644 alone. The effects of NPY on the Ca$\sp{2+}$-activated K$\sp+$ channel (K$\sb{(Ca)}$) in VSMCs from the rat tail artery were also studied by whole-cell and single channel recording technique. NPY did not affect the open times or current amplitude, but increased significantly the short (from 0.49 to 0.58 ms) and long (from 441 to 728 ms) close times. An inhibition of K$\sb{(Ca)}$ channels was also observed in cell-attached patches when NPY was applied in the bath solution, indicating involvement of diffusible second messenger. The effect of NPY on K$\sb{(Ca)}$ channels was ATP-dependent. Tyrosine kinase inhibitors (genistein, lavendustin A, and tyrphostin A25) by themselves potentiated K$\sb{(Ca)}$ channel currents in a dose-dependent manner. At a testing potential of +30 mV and in the presence of genistein 15 $\mu$M, whole-cell current amplitude of K$\sb{(Ca)}$ increased by 143%. Similarly, single channel open probability increased by 120%. The potentiating effect of genistein on K$\sb{(Ca)}$ channels was ATP-dependent. Daidzein, an inactive analogue of genistein had no effect on K$\sb{(Ca)}.$ It is concluded that NPY potentiates vasoconstriction by a synergistic effect on C$\sp{2+}$ and K$\sb{(Ca)}$ channels in VSMCs. NPY can promote Ca$\sp{2+}$ entry by increasing Ca$\sp{2+}$ channel activity. Inhibition of K$\sb{(Ca)}$ channel would further increase the influx of C$\sp{2+}$ by promoting membrane depolarization and/or prolonging the duration of action potentials. It is also concluded that the effect of NPY on K$\sb{(Ca)}$-channel is mediated by a phosphorylation-dependent pathway, probably involving tyrosine phosphorylation. (Abstract shortened by UMI.)
Studies of the hydration of polyelectrolytes.
Creators: name: Desnoyers, J. E.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1961
Subjects: subject: Chemistry, Inorganic.

description: Three approaches to the study of hydration of polymeric ions in relation to that of analogous simple ions have been made as follows: In the first part of the thesis, information in sought regarding the hydration of polyions by evaluating the degree of dielectric saturation near the charged particles. Previously, this had been done only in the ease of isolated simple ions assumed to be point charges. Since the ionic atmosphere can never be removed from the polyions, even in very dilute solutions, the simple electrostatic field cannot be used in the evaluation of the extent of dielectric saturation. The dielectric constant has therefore been obtained directly as a function of the distance from the polyion from a solution of the Poisson-Boltzmann equation and previously published relations between dielectric constant and field intensity. The solutions have been obtained by numerical methods using a digital electronic computer. The Poisson-Boltzmann equation was solved by this method for the following models: simple ions, cylindrical polyions, spherical polyions and planar colloidal ions. The relative degrees of dielectric saturation were calculated and related to the relative extents of primary hydration for the different ionic models. The effect of dielectric saturation on the field and potential functions is also discussed for the various ion models. The second part of the thesis deals with solvent electrostriction and the determination of salting-out by polyelectrolytes. In order to interpret the experimental data obtained on the salting-out of non-electrolytes (argon, ethylene, d-1 leucine and benzamide) by polyelectrolytes (sodium polyphosphates, potassium polymethacrylate and poly-4-vinyl-N-n-butylpyridinium bromide), it was first found necessary to modify the existing salting-out theories for simple ions and a proposed theory for polymeric ions, by taking into account the effect of dielectric saturation of the solvent near the ions. Such effects are shown to be important in determining salting-out constants and, in fact, lead to the recognition of the necessity for taking into account the specific structure (e.g. effective radius) of the primary hydration shell. Other modifications to the theory are also suggested. In the modified salting-out theory referred to above, the radius of the primary hydration shell in required. The third part of the thesis therefore describes the evaluation of this parameter from experimentally measured apparent molar volumes for simple and polymeric ions. The significance of these apparent molar volumes in relation to the hydration of this polymeric and simple ions is also discussed.
The Message in the Medium
Creators: name: Gelberg, Samuel Paul
Publisher: name: Brandeis University
Year: 2022
Subjects: medium
context
McLuhan
adaptation

description: The medium is a central aspect to any work. No art can exist without a medium to shape it. Following in the footsteps of Marshall McLuhan, this thesis explores the relationship between a text and its medium. By leveraging the inherent properties and traits of a medium, an artist can enhance their work into something truly unique to the medium. This thesis explores this concept in several different media such as films, novels, comics, and poetry. In each, there is an exploration of some traits of the medium and how specific texts were able to use this to their advantage. Under consideration are texts such as Mrs. Dalloway, b o d y, I'm Thinking of Ending Things, The Knife of Never Letting Go, Watchmen, Being John Malkovich, Easter Wings, and more.
COMPOUND NEOLOGISMS IN NEWSPAPER STYLE (ON THE EXAMPLES OF THE SUNDAY TIMES)
Creators: name: Khudoynazarova, Nargiza
name: Bazarbaeva, Albina
Publisher: name: Zenodo
Year: 2025

description: This article explores the formation, function, and stylistic impact of compound neologisms in newspaper language. By analyzing a range of contemporary journalistic texts, the study highlights how new compound words are creatively constructed to capture public attention, reflect cultural trends, and convey complex ideas with brevity and wit. The research categorizes different types of compound neologisms based on their structural patterns and semantic innovations, examining their roles in headlines, opinion pieces, and editorials. The findings demonstrate that compound neologisms not only enrich the lexical landscape of modern journalism but also serve as powerful tools for shaping public discourse and enhancing reader engagement.
Effects of the Syrian Refugee Crisis on the EU: Nationalism on the Rise
Creators: name: Taoushiani, Marinella
Publisher: name: Brandeis University
Year: 2017
Subjects: Xenophobia
Right-Wing
Populist
Refugee
Asylum
European Union
Nationalism

description: The last ten years have been challenging for the European Union. From the economic Euro Crisis in 2009, the after effects of the Arab Spring in 2011, and the peak of the Syrian refugee crisis in 2015, the governments of the EU are increasingly finding themselves in disagreement. Currently, nations are increasingly divided over immigration, with strong nationalistic movements emerging as many member states look to reclaim their sovereignty. In 2016 Britain voted to leave the Union, leaving open the possibility that other states will follow, with nationalism, xenophobia and support for right-wing populist parties rising throughout Europe. This paper will explore in what ways the Syrian refugee crisis has exacerbated EU governance issues by increasing nationalism within certain member states. It will also examine the potential breakdown of European values by looking at the rise of right-wing politics, and the increasing xenophobic attitudes of political leaders and EU citizens. This study looks at the refugee problem as a sort of tipping point that could gravely fracture the EU, and it seeks to determine if Europe will be able to overcome this rise in nationalism and remain united.
Evolution of star clusters in realistic tidal fields
Creators: name: Rossi, Luca
Publisher: name: Swinburne
Year: 2024

description: Evidence suggests that most of the stars in galaxies don't form in isolation, but in systems counting from dozens to millions of stars, called star clusters. In order to understand how stars form and populate the galaxy is then fundamental to understand the dynamical evolution of these objects.
The thesis presents the results of a project aimed to study the dynamical evolution of clusters in realistic tidal fields by using state-of-the-art N-body simulations.
Raman spectroscopic studies of acyl cysteine proteases.
Creators: name: Doran, John D.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1996
Subjects: subject: Chemistry, Biochemistry.

description: For a series of acyl cysteine proteases structure-reactivity relationships for the deacylation step have been established using a combination of Raman and absorption spectroscopies and enzyme kinetics. The simple chromophoric ligand 5-methylthienylacryloyl- (5MTA-) and three novel peptide based substrates labelled with the 5MTA- moiety, were used to create acyl enzyme adducts with papain, cathepsin B, cathepsin L, and protein engineered mutants of cathepsins B and L. The chromophoric specific substrates, 2-Ethoxycarbamido-3-(5-methylthienyl)acryloyl ethyl ester (NHCOOEt5MTAEt), 2-(N-acetyl-L-alanine)amino-3(5-methylthienyl)acryloyl ethyl ester (Ala5MTAEt), and 2-(N-acetyl-L-phenylalanine)amino-3-(5-methylthienyl) acryloyl ethyl ester (Phe5MTAEt), were designed to utilize hydrogen bonding and hydrophobic interactions which are known to promote catalysis in papain. For cathepsins B and L removing one of the hydrogen bonding groups making up the oxyanion hole reduces the deacylation rate 3-25 fold with the tour substrates. The deacylation rate constants for the acyl cysteine protease series span a 214 fold range, from 0.07 to 15 $\times$ 10$\sp{-3}$ sec$\sp{-1}$. Using $\sp $C=O substitution it is possible to detect the acyl C=O frequency, $\nu\sb{\rm C-O}$, for each acyl cysteine protease in the Raman difference spectrum. A correlation between the $\nu\sb{\rm C-O}$ frequency and the deacylation rate constant was established, where $\nu \sb{\rm C-O}$ increases with increasing reactivity. This trend is the opposite to that seen with acyl serine proteases. The opposite trend for acyl cysteine proteases is ascribed to the strong electron polarizing forces in the active site, due principally to an $\alpha$ helix dipole, which change the hybridization about the carbonyl carbon atom. A correlation was also established between the absorption maximum, $\lambda\sb{\rm max}$, and the deacylation rate constant. As the deacylation rate increases, 214 fold across the series, $\lambda\sb{\rm max}$ red shifts from 367 to 384 nm. It is proposed that differential interactions between the $\alpha$-helix dipole in the active site of the proteins and the $\pi$-electrons in the bound chromophoric substrate are responsible for these changes in $\lambda\sb{\rm max}$, with increasing red shifts being caused by more favourable $\alpha$-helix dipole-substrate interactions in the excited electronic state. It is also proposed that similar interactions occur between the $\alpha$-helix dipole and the transition state of the acyl enzyme on the reaction pathway, giving rise to the observed differences in deacylation rates. These results demonstrate the importance of $\alpha$-helix dipoles in cysteine protease active sites in modulating enzymatic activity, and provide the first experimental evidence for the role of $\alpha$-helix dipoles in catalysis.
Kitsap County 4-H Newsletter, September 2022
Creators: name: Washington State University Kitsap County Extension
Publisher: name: Washington State University
Year: 2022

description: In this issue:
description: Important Dates
description: In the Spotlight
description: 4-H in Kitsap County
description: 4-H Fundraisers
description: State & National 4-H Opportunities
description: Scholarship Opportunities
description: Volunteer News
description: 4-H Office Contact Information
Graceful communities, eventually: An exploration of the relationship between community and grace in "The Double Hook", "Fugitive Pieces", "The Shipping News", and "Crackpot"
Creators: name: Moore, Marya
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2003
Subjects: subject: Literature, Comparative.
subject: Literature, Canadian (English).

description: Within the communities of The Double Hook, Fugitive Pieces, The Shipping News, and Crackpot, unexplainable and incomprehensible phenomena identify and define grace. Chapter one examines The Double Hook; analyzing the community's decimated state at the opening of the novel, it proceeds to an understanding of the role of grace within the community's recuperation of wholeness. Chapter two, focusing on Fugitive Pieces, examines an individual's responsibility in receiving grace and the manner in which grace expands when it is actively present in a community. Chapter three explores issues of incest, adultery, and death, which confront the community in The Shipping News. Rather than being destroyed by disaster, the community, consistently through the grace it receives, extends grace to those who most need it. Finally, chapter four reveals a community reconfigured by grace from a place of exclusion into a place of inclusion and restoration in Crackpot. The different perspective that each novel presents on the relationship between community and grace offers further insight into the incomprehensibility of grace and its consistent presence in Canadian literature.
Jitter buffer management algorithms for voice communication.
Creators: name: Zhang, Peng Frank.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2002
Subjects: subject: Computer Science.

description: This thesis studies some jitter management algorithms for real-time applications. These algorithms are executed at a destination node, and assume no knowledge of the source characteristic or the impact of the network path characteristic. The work mainly focuses on prediction algorithms that make use of the information of the packets received in the past, and adjust buffer parameters in order to maintain certain level of quality of service (QoS). Two algorithms are proposed, first, to apply the least mean square method to predict the future packet interarrival time so that the buffer parameters can be dynamically changed in order to adapt to the bursty network traffic; second, to apply the fuzzy logic method on the buffer management to maintain the gap probability within acceptable level while keep the latency as low as possible. These two new algorithms have been evaluated using OPNET simulation and compared with some other algorithms such as the I-policy and the E-policy. We studied and discussed the tradeoff among the gap probability, average display latency, and packet loss probability. Towards the end, we have also made some design recommendations.
Fostering collaborative evidence-based decision-making: The public health nurse's role.
Creators: name: Versteeg, Cynthia Elaine.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2002
Subjects: subject: Health Sciences, Nursing.

description: The Canadian Nursing Association promotes the use of evidence-based decision-making (EBDM) as a component of quality nursing care. A shift to a population health approach encourages public participation in health-related decision-making. Public health nurses (PHNs) participate in joint health-related decision-making with community partners. The purpose of this exploratory and descriptive study was to gain an in-depth understanding of EBDM from the perspective of the PHN. The meaning of EBDM, the perceived barriers and facilitators of using evidence, and the role of the PHN in bringing evidence to the joint decision-making process that they share with community partners was explored. A qualitative methodology known as ethnography was used and data were collected from two sources: observations at team meetings and semi-structured interviews with PHNs. Analysis of the data led to the identification of three sub-themes: holistically knowing the community, bridging 'evidence' to context, and actively managing information. All three sub-themes contribute to the main theme: the PHNs' role in fostering collaborative 'evidence-based' decision-making in the community. The PHNs' holistic view of evidence, which includes hard and soft data, contextual data and professional experience, is discussed. Basic steps in a shared EBDM process are described and dimensions of the context in which PHNs practice are explored. Implications for education, practice, research, and policy are discussed.
Investigating male body image within the goodness-of-fit model
Creators: name: Cross, Dana K
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2005
Subjects: subject: Health Sciences, Recreation.

description: Lerner, Baker, and Lerner's (1985) Goodness-of-Fit model was adopted as a framework to investigate the influence of varied contexts (football and society) and associated body type ideals on body image. Determining that expectations concerning players' body types existed in the context of football tested the first assumption of the model; both mesomorphic and endomorphic body types were desired. The second assumption was framed by considering that players either match or mismatch the body ideal of each context. Out of 145 participants, 68% matched the expectations of both contexts, 30% mismatched at least one context, and 2% mismatched both contexts. The last assumption maintains that an individual will receive positive feedback if he matches the expectations of a context, resulting in positive psychosocial adjustment, and negative feedback because of a mismatch will result in negative psychosocial adjustment if a mismatch occurs. Our data contradicted the first component of this last assumption; the majority of participants who mismatched one or both contexts reported positive feedback scores (72.3%). The second component was supported, however, as participants who received positive feedback from both contexts generated the highest body image scores (M = 4.08, SD = 0.64) as compared to those who reported negative feedback in one or both contexts (M = 3.61, SD = 0.81, d = 0.69). Unique to this study was questioning the role that valuing the context played. Higher body image scores were observed for participants who valued society, both contexts, or neither context combined compared to participants who valued the sport context alone (M = 4.02, SD = 0.65; M = 3.81, SD = 0.84, respectively). Due to the small effect (d = 0.28), however, value might not add to this model.
A diagnostic tool to evaluate customer relationship management performance
Creators: name: Chen, Xu
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2008
Subjects: subject: Business Administration, Management.
subject: Engineering, System Science.

description: As customer relationship management (CRM) becomes more complex and more strategic to the company it serves, CRM framework and CRM performance become more important concepts for companies. The better CRM performance measurement, the more effectively the CRM systems can serve the present and future needs of the organization. During the 1990's, CRM frameworks and CRM performance measurement have been identified by numerous researchers as a major issue and topic for CRM. While there have been numerous related CRM framework and CRM performance measurement studies in the past years, none have focused on the customer-based framework and no CRM performance measurement tools covering whole aspects of CRM performance. The purpose of this research was to define a customer-oriental CRM framework and develop a CRM performance measurement tool. Based on background regarding CRM framework, a new CRM framework was defined with five key components, customers, CRM systems, various customers touch points, strategy management departments and information technology supporting. This research identified measurement criteria of CRM performance in four aspects, service channels performance, strategy performance, IT performance and customer satisfaction performance. Three survey questionnaires were designed to investigate how CRM managers, IT managers and customers of companies understand the performance of CRM systems. According to the result collected from surveys, a dedicated analysis was operated to set up questionnaires' reliability and validity.
Les restrictions du port de l'arme de service chez les corps policiers municipaux au Québec : un débat qui n'a pas encore eu lieu.
Creators: name: Dubé, Yves.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1993
Subjects: subject: Sociology, Criminology and Penology.

description: Nous voulions, dans cette recherche, reperer les debats concernant la pertinence pour les policiers municipaux au Quebec de porter une arme a feu et analyser les arguments qui y sont contenus. Pour realiser cet objectif, nous avons procede en trois etapes. Premierement, nous avons examine la litterature traitant de la question afin de faire ressortir les principaux arguments qui justifient encore le port de l'arme pour tous les policiers municipaux, peu importe leurs fonctions. Deuxiemement, nous avons scrute dans la presse ecrite le discours tenu lors d'incidents commis par des policiers qui ont occasionne la mort de plusieurs personnes (68) entre 1975 et 1986 au Quebec. Troisiemement, nous avons rencontre les dirigeants policiers (patronaux et syndicaux) de l'Outaouais afin de connai tre davantage leur opinion sur le sujet. Le compte rendu de ces demarches nous a alors permis de constater qu'aucun debat n'a encore vraiment ete fait sur la pertinence du port de l'arme pour les policiers municipaux au Quebec. Une conclusion qui nous incite a croire que sans une volonte politique des gouvernements a restreindre le pouvoir d'homicide des policiers, et une meilleure sensibilisation de la population a la realite criminelle et des consequences d'une police armee sans restriction, ce debat n'aura jamais lieu. (Abstract shortened by UMI.)
Younger and Older Adults' Differentiation of Trait Impressions of Faces
Creators: name: Ng, Stacey
Publisher: name: Brandeis University
Year: 2013
Subjects: differentiation
face perception
older adults

description: Trait impressions of faces may differ between older and younger adults (YA) that may be explained by a number of phenomena. The dedifferentiation hypothesis of cognitive aging suggests that older adults' (OA) cognitive processes become less distinct over time (Ghisletta & de Ribaupierre, 2005). This study evaluates age-related behavioral dedifferentiation in first impressions of faces by analyzing the degree to which older or younger adults use a rating scale when rating trait impressions of both older and younger faces. OA differentiated less than YA on ratings of babyfaceness, competence, health, trustworthiness, and hostility, but not attractiveness. An own-age bias was only partially supported in ratings of health, attractiveness and untrustworthiness. The positivity effect was only supported minimally in differentiation of the most untrustworthy faces. Finally, correlations between measures of cognitive and sensory abilities paralleled differentiation of trait impressions from faces between older and younger adults.
Artificial transposon activity contributes to aging in Drosophila somatic tissue and dFOXO protects against detrimental effect on lifespan.
Creators: name: Rigal, Joyce Michael
Publisher: name: Brandeis University
Year: 2022
Subjects: FOXO
Transposons
Aging

description: Transposable elements (TE) are mobile sequences of DNA that can become transcriptionally active as an animal ages. Activation of the stress response transcription factor FOXO can increase longevity in flies and worms. Research into the subject has centered on metabolism as the driver of aging. Whether TE activity is a byproduct of heterochromatin breakdown or can contribute towards the aging process is not known. Neither is the potential effect of FOXO on TE activity during aging. Here we examine dFOXO’s effect on TE during aging by using next sequencing approaches and find that the TE landscape is a caveat to determining whether there is a dFOXO effect. We place the TE gypsy under the control of the UAS GAL4 system to model TE activation during aging and circumvent the TE landscape caveat. We find that TE activity can shorten the lifespan of male D. melanogaster and the mortality defect is only apparent after middle age. The increase in mortality is not present in the reverse transcriptase mutants, indicating an intact reverse transcriptase is necessary for the decrease in lifespan. The decline in lifespan in the active gypsy flies is accompanied by the acceleration of a subset of aging phenotypes. TE activity increases sensitivity to oxidative stress and promotes a decline in circadian rhythmicity. The overexpression of the Forkhead-box O family (FOXO) stress response transcription factor can partially rescue the detrimental effects of TE activity on lifespan. Our results provide evidence that active TE can behave as effectors in the aging process and suggest a potential novel role for dFOXO to promote longevity in D. melanogaster.
Obstacles in the Process of Refugee Integration in Culturally and Politically Homogeneous Swedish and Danish Welfare States
Creators: name: Wang, Shinan
Publisher: name: Brandeis University
Year: 2018
Subjects: integration
refugee
welfare states
Denmark
Sweden
Immigration

description: This thesis studies the process of refugee integration into Scandinavian welfare states, which are overwhelmed by the recent refugee crisis. Scandinavian countries are known as humanitarian superpowers because they have assisted a large number of refugees in the past, and their generous welfare system has attracted more refugees to resettle there. After gathering and evaluating both quantitative and qualitative data of the chosen cases—Sweden and Denmark—it can be concluded that the in these two welfare states, refugees and also other types of immigrants have not been culturally, socially, and economically integrated well. It also contrasts Sweden with Denmark, indicating that the Danish laws passed to dissuade asylum seekers have blocked the number of asylum seekers since 2015. After examining theories on assimilation, integration, welfare state and citizenship, this thesis concludes that instead of being beneficial for refugees, the welfare system in these two countries is actually one of the biggest obstacles that prevents refugees from being well integrated into the Swedish and Danish society. Other obstacles, such as anti-immigrant policies and xenophobic public attitudes, also slow down the process of refugee integration in Swedish and Danish welfare states.
title: Data-inspired advances in geometric measure theory
title: Generalized surface and shape metrics
titleType: Subtitle
Creators: name: Ibrahim, Sharif N.
Publisher: name: Washington State University
Year: 2014
Subjects: Geometric measure theory

description: Author's preferred version is on arXiv. Modern geometric measure theory, developed largely to solve the Plateau problem, has generated a great deal of technical machinery which is unfortunately regarded as inaccessible by outsiders. Consequently, its ideas have not been incorporated into other fields as effectively as possible. Some of these tools (e.g., distance and decompositions in generalized surface space using the flat norm) hold interest from a theoretical perspective but computational infeasibility prevented practical use. Others, like nonasymptotic densities as shape signatures, have been developed independently as useful data analysis tools (e.g., the integral area invariant). Here, geometric measure theory has promise to help close the gaps in our understanding of these ideas. The flat norm measures distance between currents (or generalized surfaces) by decomposing them in a way that is robust to noise. One new result here is that the flat norm can be suitably discretized and approximated on a simplicial complex by means of a simplicial deformation theorem. While not surprising given the classical (cubical) deformation theorem or, indeed, Sullivan's convex cellular deformation theorem (which includes simplicial deformation as a special case), the bounds on the deformation can be made smaller and more practical by focusing on the simplicial case. Computationally, the discretized flat norm can be expressed as a linear programming problem and thus solved in polynomial time. Furthermore, the solution is guaranteed to be integral if the complex satisfies a simple topological condition (absence of relative torsion). This discretized integrality result (with some work) yields a similar statement for the continuous case: the flat norm decomposition of an integral 1-current in the plane can be taken to be integral, something previously unknown for 1-currents which are not boundaries of 2-currents. Nonasymptotic densities (integral area invariants) taken along the boundary of a shape are often enough to reconstruct the shape. This result is easy when the densities are known for arbitrarily small radii but that is not generally possible in practice. When only a single radius is used, variations on reconstruction results (modulo translation and rotation) of polygons and (a dense set of) smooth curves are presented.
Identifying Technology Terms in Document Text
Creators: name: Cherenina, Olga
Publisher: name: Brandeis University
Year: 2013
Subjects: identifying technology terms
emergence

description: Finding technologies in the text of patents or other documents such as medical articles is a subtask of building a technology ontology. Building such a technology ontology was proposed by Brandeis scholars as part of the project aimed at patent classification based on a certain notion of availability of technologies relevant to the patent. Technology ontology represents a database of technologies evaluated by their availability within certain time frame, that is their maturity. Technology terms identification in the text of documents is an initial step necessary for building an ontology. The terms found in the text of the patent will reflect the notion of a technology and constitute the basis for technology maturity identification.\r \r \r Here, we explore the efficiency of using natural language processing techniques to help identify technologies in patent text. We attempt at creating and using a matcher that uses lexical and syntactic features to look for technology terms. We address the problem of determining the concept of a technology which is important for the task and use an annotation for the evaluation of the matcher. Finally, we analyze the results and propose improvements to the system.
Real-time distributed video transcoding on a heterogeneous computing platform
Creators: name: Chang, Zhi Hao
Publisher: name: Swinburne
Year: 2024

description: The requirements for real-time video transcoding systems have been significantly increased due to the easy and widely available access to high resolution video streams and large-scale applications in recent years. A real-time distributed video transcoding system working in a heterogeneous environment has been proposed to tackle the high requirements of such applications. The proposed approach emphasizes throughput of video data aggregation which involves the continuous input video stream and outcomes of transcoded video streams that are accessible on-the-fly in contrast to the batch-oriented approach such as the MapReduce framework, where output latencies can be significant.
The notion of complementarity in Murray Bookchin's social project.
Creators: name: Chiasson, Alex.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1995
Subjects: subject: Sociology, Theory and Methods.

description: The objective of this work is to prove that, within the framework of Vachet's "Crisis of Ideologies", the philosophy of Murray Bookchin does not offer the basis for an ideological renewal. By concentrating our efforts on his notion of complementarity, we will first attempt to prove that it is the central notion of Murray Bookchin's thought. Secondly, we will try to demonstrate, through the analysis of this notion, that we cannot find the basis for an ideological renewal. Our development is divided in two parts comprising of five chapters. The first part, which is divided into two chapters, outlines the theoretical foundations of the notion. In it, we analyze the role of complementarity on an internal social level, and on the new proposed relationship between humanity and the natural world. In the second part, which is divided into three chapters, we examine the forms of his notion of complementarity within his social project, especially, in relation to the notions of community, politics, and economy.
Velocity Tuning in Center-Surround Cells in the Retina and LGN
Creators: name: Lipnick, Andrew
Publisher: name: Brandeis University
Year: 2018
Subjects: speed tuning
visual cortex
Brain

description: Center surround cells in the retina and LGN have been shown to exhibit speed tuning (Frishman, Schweitzer-Tong, Goldstein, J. Neurophysiol. 50: 1393-1414, 1983). Understanding the mechanism of this speed tuning is necessary to understand the visual system’s responses to moving stimuli. Recent experiments in the Van Hooser lab showed that speed tuning in the visual cortex could not be adjusted with visual experience (Ritter et al., 2017), and we would like to understand the neural mechanisms that underlie speed tuning in the cortex. Modeling the retina and LGN, the primary inputs to the visual cortex, is important because knowing what information the cortex receives is necessary to understand how the visual system processes speed and direction. In order to understand the properties of the center-surround cells that give rise to cortical responses, first a simulation approach was taken. However, kernel based simulations provided little intuition as to how velocity tuning arises. To address this, we developed a Fourier analysis approach that can be analyzed more easily. The function of the kernel was decomposed into multiple functions, each with only one or two variables, allowing for easier analysis. Fourier analysis allowed for quicker computation and better prediction.
Battery pack balancing systems for underground mine electric vehicles
Creators: name: Cui, Xiudong
Publisher: name: Swinburne
Year: 2024

description: This PhD research focuses on the non-uniformity of battery packs in underground mine electric vehicles, which have zero emissions. The non-uniformity in the battery pack is inevitable and can significantly reduce the pack capacity and their service life. This thesis alleviates the side effect of the non-uniformity through a dedicated balancing system and the contributions are summarized as proposing new balancing criteria and designing new balancing controller. The proposed criteria use dynamically estimate battery states to more accurately reflect the non-uniformity and this increases the pack capacity significantly compared to the traditional balancing criterion. The balancing controller improves the balancing speed and shortens the balancing time in the fast charging process. These contributions have been verified by hardware test or simulation with different battery types.
An investigation into acid-base balance at the gills of rainbow trout (Oncorhynchus mykiss) using in situ hybridization and immunocytochemistry for proton-ATPase and band 3.
Creators: name: Sullivan, Gary V.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1995
Subjects: subject: Biology, Cell.

description: This thesis examines changes that occur in the epithelial cells of rainbow trout (Oncorhynchus mykiss) gills with respect to the expression of Na$\sp+$ and Cl$\sp-$ ion-transporting proteins during periods of acid-base disturbance. In the first part of the study, the expression of the V-type proton ATP-ase (H$\sp+$-ATPase) was examined in the gill of trout to provide direct evidence for its existence, determine its cellular distribution, and assess its response to acid-base disturbance. Gill epithelial cells demonstrated specific immunoreactivity, the intensity of which was increased markedly after 18 h of exposure to hypercapnia (1% CO$\sb2$ in air). The specificity of the antiserum for the 31-kDa subunit of the H$\sp+$-ATPase was supported by Western blotting with the presence of an immunoreactive band at 31-kDa. The increased H$\sp+$-ATPase immunoreactivity in the epithelial cells of hypercapnic fish demonstrates an "up-regulation" of this protein in response to respiratory acidosis. Oligonucleotide probes, complementary to the mRNA of the 31- and 56-kDa subunits of the bovine renal H$\sp+$-ATPase were constructed. The H$\sp+$-ATPase mRNA expression was increased markedly in the gills of acidotic fish and was accompanied by a pronounced elevation in branchial H$\sp+$ excretion. The probe for the Band 3 mRNA also demonstrated a specific hybridization signal in gill epithelial cells which was greatly increased in the gills of alkalotic fish, which were excreting large amounts of HCO$\sb3\sp-$. The results of this thesis provide direct evidence for the presence of an electrogenic H$\sp+$ pump located on the apical surface of the pavement cell which is actively up-regulated during periods of acidosis through increased transcription and translation of the protein as well as increased membrane association. Further evidence is provided for the presence of Band 3 or a Band 3-like protein which is responsible for Cl$\sp-$/HCO$\sb3\sp-$ exchange across the gill. (Abstract shortened by UMI.)
The Duality of Disaster: Disability Politics in an Age of Climate Change
Creators: name: Barstein, Leeza K
Publisher: name: Brandeis University
Year: 2023
Subjects: Disaster Response
Civil or Human Rights
Public Access Programs for People with Disabilities

description: This thesis seeks to address how disasters both exacerbate the existing structural abandonment people with disabilities face daily, as well as how disabled communities exercise their agency during disasters. These two sides to crises are what I argue give disasters their ‘duality.’ I first provide an overview and analysis of existing literature within environmental and disability studies to merge the two disciplines. Ultimately, I argue that environmental and climate frameworks are not only compatible with the disability justice framework but also deeply enhanced by this framework. Next, I focus on how structural abandonment that disabled people face regularly, particularly the practice of institutionalization in nursing homes, is exacerbated during disasters. I analyzed and coded data from a series of primary source documents and then included my own synthesis of how this data connects to various theories pertaining to disaster and disability. Finally, I discussed how disability-led initiatives before, during, and after disasters have successfully pushed back against the aforementioned structural forces. For this section, I conducted 14 semi-structured interviews with disability rights advocates, disability-led organizations, disaster responders who are disabled, and academics. 