cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stochastic analysis of multiply-supported piping systems under correlated ground excitations.
Creators: name: Mantegh, Iraj.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1994
Subjects: subject: Engineering, Civil.

description: Piping systems are among the most important systems in modern industrial facilities, which are also highly affected by events like earthquakes, hurricanes, flood, etc. Like nerves in our body they nurture the industrial plants and hence require protection from these events. For dynamic and specially seismic loading there is no universally accepted design code, hence research is still underway in this area. The response of a system excited by ground motions has two components: (1) pseudo-static which is due to the ground displacement at support points and (2) dynamic which is due to the vibrational excitation. The current methods of estimating that response are typically based on the assumption of a uniform ground motion. Some authors have recently attempted to modify the methods for the spatial variations of ground motion. In this work a different method is presented which also considers the non-uniformity in support excitations. The treatment is based on the random vibration principles and can develop the pseudo-static time history of the system and also the maximum dynamic response at each degree of freedom. For a typical piping system, the correlated ground acceleration and displacement time series are developed at the excited support points. The time series are used to develop the pseudo-static component, and also for the dynamic component by means of a classical step-by-step integration method. Dynamic responses are also developed by the stochastic method and some current methods and are compared, in each case, with the results from the integration method. It is verified that the stochastic results are comparable with the current method results. Comparing the results in case of a uniform and a non-uniform ground motion, it is shown that the cross correlation of support inputs does affect the components of the response significantly and the effect is not predictable. It is also shown that neglecting the non-uniformity in ground motions can lead to an underestimation of results, in some cases, while in some other cases to an overestimation.
title: Official invitation letters to promote male partner attendance and couple voluntary HIV counselling and testing in antenatal care
title: an implementation study in Mbeya Region, Tanzania
titleType: Subtitle
Creators: name: Jefferys, Laura F.
name: Nchimbi, Philo
name: Mbezi, Paulina
name: Sewangi, Julius
name: Theuring, Stefanie
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2015
Subjects: subject: Invitation letters
subject: Male involvement
subject: ANC
subject: CVCT
subject: HIV
subject: PMTCT
subject: Tanzania
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

description: Background The benefits of male partner involvement in antenatal care (ANC) and prevention of mother-to-child transmission of HIV (PMTCT) for maternal and infant health outcomes have been well recognised. However, in many sub-Saharan African settings, male involvement in these services remains low. Previous research has suggested written invitation letters as a way to promote male partner involvement. Methods In this implementation study conducted at three study sites in southwest Tanzania, acceptability of written invitation letters for male partners was assessed. Pre-study CVCT rates of 2–19 % had been recorded at the study sites. Pregnant women approaching ANC without a male partner were given an official letter, inviting the partner to attend a joint ANC and couple voluntary counselling and testing (CVCT) session. Partner attendance was recorded at subsequent antenatal visits, and the invitation was repeated if the partner did not attend. Analysis of socio-demographic indices associated with male partner attendance at ANC was also performed. Results Out of 318 women who received an invitation letter for their partner, 53.5 % returned with their partners for a joint ANC session; of these, 81 % proceeded to CVCT. Self-reported HIV-positive status at baseline was negatively associated with partner return (p = 0.033). Male attendance varied significantly between the rural and urban study sites (p
title: ÐÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð¾ Ð½Ð°ÑÑÐ¸Ñ-22 Ð½Ð° Ð¿ÑÑÐºÐµ Ð¿ÑÐ¾ÑÐ¾Ð½Ð¾Ð² ÑÐ¸ÐºÐ»Ð¾ÑÑÐ¾Ð½Ð°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Production of sodium-22 radionuclide by proton bombardment on cyclotron
Creators: name: ÐÐ¸Ð¼ÐµÐ½Ð¾Ð²Ð°, ÐÐ°ÑÐ°Ð»Ð¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: Ð½Ð°ÑÑÐ¸Ð¹-22
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ÑÐ´ÐµÑÐ½Ð°Ñ ÑÐµÐ°ÐºÑÐ¸Ñ
Ð¾Ð±Ð»ÑÑÐµÐ½Ð¸Ðµ Ð¿ÑÐ¾ÑÐ¾Ð½Ð°Ð¼Ð¸
Ð²ÑÑ Ð¾Ð´
Ð°ÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ Ð½Ð° ÐºÐ¾Ð½ÐµÑ Ð¾Ð±Ð»ÑÑÐµÐ½Ð¸Ñ
sodium-22
cyclotron
nuclear reaction
protons bombardment
thick target yield
activity at the end of bombardment

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÐµÑ ÑÐ¾Ð±Ð¾Ð¹ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð½Ð° ÑÐµÐ¼Ñ Ð¿Ð¾Ð´Ð±Ð¾ÑÐ° Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² Ð¼Ð¸ÑÐµÐ½Ð¸ Ð´Ð»Ñ Ð½Ð°ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¸Ð·Ð¾ÑÐ¾Ð¿Ð° Ð½Ð°ÑÑÐ¸Ñ-22 Ð¿ÑÑÐµÐ¼ Ð¾Ð±Ð»ÑÑÐµÐ½Ð¸Ñ Ð¼Ð¸ÑÐµÐ½Ð¸ Ð¿ÑÑÐºÐ¾Ð¼ Ð¿ÑÐ¾ÑÐ¾Ð½Ð¾Ð² Ñ ÑÐ½ÐµÑÐ³Ð¸ÐµÐ¹ 24 ÐÑÐ. ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ: â¢ ÐÐ½Ð°Ð»Ð¸Ð· Ð·Ð°ÑÑÐ±ÐµÐ¶Ð½ÑÑ Ð¸ Ð¾ÑÐµÑÐµÑÑÐ²ÐµÐ½Ð½ÑÑ Ð»Ð¸ÑÐµÑÐ°ÑÑÑÐ½ÑÑ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ¾Ð² Ð¿Ð¾ ÑÐµÐ¼Ðµ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð° ÑÐ°Ð´Ð¸Ð¾Ð½ÑÐºÐ»Ð¸Ð´Ð¾Ð² Ð½Ð° ÑÐ¸ÐºÐ»Ð¾ÑÑÐ¾Ð½Ðµ. â¢ ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÐ¸Ð¿Ð¾Ð² ÑÐ´ÐµÑÐ½ÑÑ ÑÐµÐ°ÐºÑÐ¸Ð¹, Ð¿ÑÐ¾Ð¸ÑÑÐ¾Ð´ÑÑÐ¸Ñ Ð¿ÑÐ¸ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ð¸ ÑÑÐºÐ¾ÑÐµÐ½Ð½ÑÑ ÑÐ°ÑÑÐ¸Ñ Ñ ÑÐ´ÑÐ°Ð¼Ð¸ Ð¿Ð»Ð°Ð½Ð¸ÑÑÐµÐ¼ÑÑ Ð¼Ð¸ÑÐµÐ½ÐµÐ¹. â¢ ÐÐ¾Ð¸ÑÐº Ð¸ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð¿Ð¾ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾ Ð¸Ð·Ð¼ÐµÑÐµÐ½Ð½ÑÐ¼ ÑÐµÑÐµÐ½Ð¸ÑÐ¼ ÑÐ´ÐµÑÐ½ÑÑ ÑÐµÐ°ÐºÑÐ¸Ð¹. â¢ ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð²ÑÑÐ¾Ð´Ð° ÑÐµÐ»ÐµÐ²Ð¾Ð³Ð¾ Ð¸Ð·Ð¾ÑÐ¾Ð¿Ð° Ð¿Ð¾ ÑÐµÑÐµÐ½Ð¸Ñ ÑÐµÐ°ÐºÑÐ¸Ð¸. â¢ ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾Ð¹ ÑÐ¾Ð»ÑÐ¸Ð½Ñ Ð¼Ð¸ÑÐµÐ½Ð¸ Ð´Ð»Ñ Ð½Ð°ÑÐ°Ð±Ð¾ÑÐºÐ¸ ÑÐ°Ð´Ð¸Ð¾Ð°ÐºÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ Ð¸Ð·Ð¾ÑÐ¾Ð¿Ð° 22.
description: The present work is a study on the selection of target parameters for the production of the isotope sodium-22 by irradiating the target with a proton beam with an energy of 24 MeV. Tasks that were solved during the study: â¢ Analysis of foreign and domestic literature sources on the production of radionuclides on a cyclotron. â¢ Determination of the main types of nuclear reactions occurring during the interaction of accelerated particles with the nuclei of planned targets. â¢ Search and processing of information on experimentally measured cross sections of nuclear reactions. â¢ Determination of the thick target yield of the target isotope by the reaction cross section. â¢ Determination of the optimal target thickness for the production of the radioactive isotope 22.
Nanolipoparticles-mediated MDR1 siRNA delivery reduces doxorubicin resistance in breast cancer cells and silences MDR1 expression in xenograft model of human breast cancer
Creators: name: Nourbakhsh, Mahnaz
name: Jaafari, Mahmoud Reza
name: Lage, Hermann
name: Abnous, Khalil
name: Mosaffa, Fatemeh
name: Badiee, Ali
name: Behravan, Javad
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2015
Subjects: subject: Breast cancer
subject: Gene therapy
subject: Liposome
subject: Multidrug resistance
subject: siRNA delivery
subject: Tumor targeting
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::616 Krankheiten

description: Objective(s): P-glycoprotein (P-gp) is an efflux protein, the overexpression of which has been associated with multidrug resistance in various cancers. Although siRNA delivery to reverse P-gp expression may be promising for sensitizing of tumor cells to cytotoxic drugs, the therapeutic use of siRNA requires effective carriers that can deliver siRNA intracellularly with minimal toxicity on target cells. We investigated a special class of PEGylated lipid-based nanoparticles (NP), named nanolipoparticles (NLPs), for siRNA- mediated P-gp downregulation. Materials and Methods: NLPs were prepared based on low detergent dialysis method. After characterization, we evaluated the effect of NLPs on siRNA delivery, and P-gp downregulation compared to oligofectamineTM (OFA) in vitro and in vivo. Results: Our results showed a significant decrease in P-gp expression and subsequent enhancement of chemosensitivity to doxorubicin in vitro. Although the effectiveness of NLPs for in vitro siRNA delivery compared to OFA was limited, the results of in vivo studies showed noticeable effectiveness of NLPs for systemic siRNA delivery. siRNA delivery using NLPs could downregulate MDR1 in tumor cells more than 80%, while OFA had a reverse effect on MDR1 expression in vivo. Conclusion: The results indicated that the prepared NLPs could be suitable siRNA delivery systems for tumor therapy.
Spreading the festive smear: why managers should take social media seriously
Creators: name: Holland, Peter
Publisher: name: Swinburne
Year: 2024

description: As Christmas party season approaches, many will begin turning their attention to the office party. While some may focus on concerns about the venue and cost-cutting measures (in the current economic climate), perhaps a more worthy concern is whether we can any longer assume that what happens at the Christmas party will stay at the Christmas party...
The Painted Cities of Vesuvius: Pigments, Application, and Conservation of Roman Wall Paintings from the Bay of Naples
Creators: name: Crandall, Alison M.
Publisher: name: Brandeis University
Year: 2015
Subjects: Rome
Roman Wall Paintings
Roman Painting
Pigments
Pompeii
Herculaneum
Archaeological Science
Archaeochemistry
pXRF
GC-MS
FT-IR
Roman Frescoes

description: Wall paintings decorated the majority of space in both Roman households and public buildings, depicting everything from the objects and scenes of daily life to vibrant vignettes of mythology, and there is no better corpus of preserved images than those found in the colorful Roman towns and villas on the Bay of Naples, buried and preserved by the 79 CE eruption of Mount Vesuvius. Today, these sites attract millions of visitors every year, simultaneously capturing the imagination of the world and endangering the remains of the day frozen in time. To properly address this, further study must be done into the materials that compose these walls, from the base levels of cement and plaster to the pigment adorning them in order to better understand the art form and how to protect it. This study begins with the general construction of walls, their plaster-layer preparation, and the sources for pigments and their subsequent application. Then, conservation approaches and techniques are described and examined. This project also incorporates scientific methodology into a case study of fragments of wall painting from the region from private collections, including portable X-Ray Fluorescence (pXRF), Fourier (FT-IR), and Gas Chromatography-Mass Spectrometry (GC-MS), to extrapolate details about their composition and production. The case study shows a variety of material from the Bay of Naples and demonstrates the complexity of finding a standardized and effective way of protecting these sites as part of the world's cultural heritage. More research is required to determine the next course of action and it must be done carefully, but it is, in some ways, a race against time.
Sustainable Farming Quarterly, December 1990
Creators: name: Granatstein, David
Publisher: name: Washington State University
Year: 1990
Subjects: Agriculture

description: Less fallow means more profit in Colorado study / National Ag Library is a gold mine of sustainable information / Persian Gulf crisis stimulates interest in green manures / Sustainable ag questions? AERO database has answers / Utah researchers excited about alternative cash crop / Beneficial insects in cover-crop systems attract new attention
L'évolution du conte populaire à la Renaissance.
Creators: name: Gomes, Caroline.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2002
Subjects: subject: Literature, Modern.

description: Trop souvent dans l'ombre des contes populaires merveilleux et des contes de fées ou bien situés dans le sillage des fabliaux et du Décaméron , les contes populaires français de la Renaissance n'ont pas toujours été appréciés avec justesse. Ils sont appréhendés sous diverses approches et perspectives qui tendent généralement à les définir à l'aide de critères préétablis et plutôt stables, lesquels ne rendent pas compte de leur complexité et mènent, par conséquent, au conformisme. Il s'agit donc dans un premier temps de procéder à une description des contes populaires en France qui respecte leurs différences en même temps qu'elle souligne leur parenté. Après quoi, on s'intéressera à la question du passage de l'oral à l'écrit des contes populaires qui s'effectue à une époque où l'imprimé conquiert de plus en plus de territoire. Nous prêterons une attention toute particulière à la façon dont les contes populaires réagissent à ces nouvelles conditions de production qui leur sont étrangères alors qu'ils relevaient auparavant de la tradition orale.
The principalship: Five women principals' relationships and responsibilities.
Creators: name: Leblanc, Renée.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2002
Subjects: subject: Women's Studies.

description: Many women currently occupy the position of high school principal, and the number of studies conducted with women educational administrators has increased to reflect that reality. In the past, women who became school administrators had to have succeeded according to rules that they had no part in making; they were accommodating the demands of administrative roles shaped by men (Young, 1995). Since Young wrote that conclusion in 1995, the landscape has changed, and even more women occupy educational administrative positions. This study attempted to ascertain to what extent and in what ways women are now able to shape administrative roles to suit themselves; in terms of their leadership approach, and their conception of power, and authority. The qualitative study is based on data collected from semi-structured, open-ended interviews with five women high school principals, as well as observations conducted at their work place. The aim of the study was to further our understanding of how they enact their role as the principal of a high school. (Abstract shortened by UMI.)
Investigating the role of communication via the BLA-to-GC projection in CTA acquisition
Creators: name: Murdy, Tom
Publisher: name: Brandeis University
Year: 2021
Subjects: Conditioned taste aversion
Optogenetics
Cortico-amygdalar circuits
Gustatory cortex
Basolateral amygdala
Brain

description: Conditioned taste aversion (CTA) is an evolutionarily useful association of gastric malaise with prior consumption of a taste. Communication between the gustatory cortex (GC) and basolateral amygdala (BLA) seems to play a central role in CTA acquisition. While it is the amygdala-cortical pathway that is most commonly thought of as being central to this form of learning, recently, it has been suggested that chronic chemogenetic perturbation of GC to BLA projecting neurons during exposure to a novel tastant in a CTA learning paradigm attenuates CTA acquisition. However, such perturbations of GC cell bodies likely also alter the activity of the larger GC population via lateral connections of these GC to BLA projecting neurons. Thus, the nature of the perturbation used in this previous study leaves it unclear whether communication via the GC to BLA projection itself is truly vital for CTA acquisition. My study tests this hypothesis using a more temporally and spatially precise optogenetic perturbation of specifically GC to BLA axon terminals: I inhibited the immediate, short-term (2.5-second) taste-evoked activity of bilateral GC-projecting neuron (GC-PN) terminals in BLA during exposure to a novel tastant in a CTA learning paradigm. My results suggest reduced learning in animals that underwent this optogenetic perturbation. On closer inspection, I observed a bimodal distribution of responses to the perturbation, such that some animals failed to learn, and others robustly learned the aversion. Initial post-hoc histological analysis reveals no underlying relationships between sites of virus injection in GC or optical fiber localization above BLA with learning outcome. Nonetheless, acknowledging the need for further data acquisition, I cautiously interpret these results to implicate activity of the GC to BLA projection in CTA learning.
Studies on the role(s) of post-translational modification(s) of human apolipoprotein B during very low density lipoprotein assembly and secretion.
Creators: name: Vukmirica, Jelena.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2002
Subjects: subject: Chemistry, Biochemistry.

description: The role of two post-translational modifications, N-linked glycosylation and palmitoylation, of human apolipoprotein B (apoB) in the biosynthesis of hepatic apoB-containing very low density lipoproteins (VLDL) was investigated. Working with tunicamycin-treated rat hepatoma McA-RH7777 cells stably expressing human apoB variants, we found that inhibition of N-linked glycosylation decreased the secretion of apoB variants, without affecting translation. Detailed biochemical analysis was performed following site-specific mutagenesis at consensus N-linked glycosylation sites (using asparagine-to-glutamine substitution) within recombinant human apoB variants (i.e. apoB17, -B37, -B48, and -B50). Four notable features associated with the requirement of N-linked oligosaccharides during apoB biosynthesis were observed: (a) N-linked oligosaccharides were required for efficient secretion of the apoB polypeptide. (b) N-linked oligosaccharides were required for the assembly and secretion of the apoB-containing VLDL. (c) Removal of N-linked oligosaccharides was associated with accumulation of total intracellular apoB without specific apoB retention in the ER, and (d) Expression of mutant apoB lacking N-glycans was associated with changes in mass or activity of microsomal triglyceride transfer protein (MTP). Similar biochemical analysis was performed following site-specific mutagenesis at potential palmitoylation sites (using cysteine-to-serine substitution) within human apoB48. The cysteine-to-serine substitution had no effect on the secretion of apoB48-containing lipoproteins or apoB intracellular distribution. Thus, while N-linked glycosylation at the amino terminus of apoB represents an important requisite for proper biogenesis of apoB-containing VLDL, palmitoylation is not required for apoB-containing VLDL assembly and secretion.
Modeling, simulation and numerical analysis of transient characteristics of unregulated power system networks
Creators: name: Basher, Mohamed Abul
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2003
Subjects: subject: Engineering, Electronics and Electrical.
subject: Engineering, System Science.
subject: Energy.

description: Design and operations of electrical distribution-transmission networks are analyzed mathematically, implemented numerically and validated by simulation. A dynamic model of a three node network with capacitors, inductors, load current controllers and regulators is proposed and cast in a general model of differential state-space equations in canonical form. The model is implemented via a Runge-Kutta algorithm. Realistic values of distribution systems are chosen as input and validated interactively so as to avoid instabilities and maintain reasonable characteristics. Typically cases are analyzed and the behavior of state variable is represented graphically. The software used and mode of representation aim at providing a robust environment to help power managers in their daily control of load balancing. The analysis also opens directions for the design of power distribution network.
Is there peace within Islamic fundamentalists? When Islamic fundamentalism moderates the effect of meta-belief of friendship on positive perceptions and trust toward outgroup
Creators: name: Putra, Idhamsyah Eka
name: Sukabdi, Zora A.
Publisher: name: Swinburne
Year: 2024

description: On the basis that religious fundamentalists have a strong bond to their religion, we hypothesized that Islamic fundamentalism would moderate the effect of ingroup meta-belief of friendship on positive perceptions and trust on Christians. The results of the research involving 147 Muslim participants showed that the effect of ingroup meta-belief of friendship on positive perception and trust was significant among participants with high Islamic fundamentalism. It indicates that Islamic fundamentalists may become the ones who stand at the forefront to build a good relationship with other religions when they think their religion sees a particular outgroup as friendly.
Kitsap County 4-H Newsletter, June 2020
Creators: name: Washington State University Kitsap County Extension
Publisher: name: Washington State University
Year: 2020
Subjects: 4-H Club

description: Contents:
description: Important Dates
description: Extension Notes
description: In the Spotlight
description: 4-H in Kitsap County
description: State & National 4-H Opportunities
description: 4-H Fundraisers
description: Scholarship Opportunities
description: Volunteer News
description: 4-H Office Contact Information
Entre frères et cousins: L'expérience familiale des voyageurs de la seigneurie de Rivière-du-Loup dans le commerce des fourrures, 1788--1821
Creators: name: Blouin, Sonia
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2003
Subjects: subject: History, Canadian.

description: Portant sur les voyageurs de Rivière-du-Loup qui se sont engagés pour la traite des fourrures entre 1788 et 1821, cette thèse fait connaître le profil socioéconomique des engagés de la seigneurie. En plus d'identifier les raisons qui poussèrent ces hommes à se faire pagayeurs, ce travail présente un bilan migratoire révelant que le commerce des pelleteries à davantage contribué à l'émigration des canotiers qu'à leur établissement. Cependant, l'objectif principal de cette recherche consiste à faire la lumière sur l'expérience familiale vécue par les voyageurs au sein de cette occupation. Il est principalement question de montrer que la présence familiale était un phénomène marquant qui impliquait surtout des frères et des cousins. Autrement dit, elle concernait avant tout des individus issus de la même génération puisque des arrêts de la pratique de la traite des fourrures auraient provoqué une rupture de la présence familiale intergénérationnelle.
The Sins of Our Ancestors: Conservative Evangelical Christianity and Cosmological Responses to Racial Division in Post-Apartheid South Africa
Creators: name: Bafford, Douglas
Publisher: name: Brandeis University
Year: 2022
Subjects: anthropology of Christianity
conservatism
moral discourse
multiracial congregations
theodicy
African Studies
Cosmology
South Africa

description: This dissertation analyzes the efforts of South African conservative evangelical Christians to build multiracial congregations in the wake of apartheid histories of racial violence, division, and inequality. Drawing on sixteen months of ethnographic fieldwork conducted predominantly in Johannesburg, I trace their efforts to address the ongoing salience of race in everyday life through a theologically and socially conservative lens. I ask what semiotic and discursive techniques they employ—some of which emerge from Southern African history, while others stem from a transnational history of conservative Christianity—to respond to the country’s racial, cultural, and socioeconomic divides. The dissertation is divided into two parts, the first of which begins with the anxieties conservative evangelicals exhibit toward “religious others” like Pentecostalism and African traditional religion that nonetheless overlap uncomfortably with some of their own practices. They reproduce historical Euro-American fears of ecstatic forms of religion yet reshape these concerns to echo prevailing secular discourse over materialist excesses. Likewise, they reframe Christianity as a salvific force against earlier colonial and apartheid injustice, as well as post-apartheid poverty and inequality. Associated with notions of racial difference is “culture,” which takes on ambiguous meanings for evangelicals, who support the celebration of cultural individuality, provided it remains within the boundaries of Christian orthodoxy.
description: The second part focuses on three topics that have fostered global controversy among conservative Christians: shifting gender and sexuality norms, the creation vs. evolution debate, and the intersection of religion and secular political authority. I consider each theme from a South African perspective, first examining how conservatives craft an opposition to progressive attempts to spread LGBTQ acceptance, while distancing themselves from more extreme voices within the evangelical world. Next, I turn to their reframing of debates over human origins as a means to associate biological evolution with apartheid-era racism. Finally, I suggest that pervasive discourse around discipline emerges as part of a cosmological model for legitimate authority, which structures their ambiguous stances toward the state and perceived social disorder. These ethnographic analyses together reveal multiple dimensions of how a conservative brand of Christianity positions South Africans to aspire to a new multiracial future.
Hippocampal Rem2 in taste learning and memory
Creators: name: Kimbrell, Katherine Elizabeth
Publisher: name: Brandeis University
Year: 2021
Subjects: conditioned taste aversion
Rem2
social transmission of food prefence
hippocampus
learning
memory

description: The molecular/cellular plasticity mechanisms that ensure adaptive animal behaviors remain less than fully understood. Our lab has shown that Rem2, a small GTPase of the Ras-like superfamily, regulates multiple plasticity-related phenomena, including synapse formation and function and dendritic arbor complexity. While the above work involved examination of visual cortex, Rem2 is also expressed the hippocampus, a region that mediates a broad swath of learning and memory behaviors, including Social Transmission of Food Preference (STFP) and the Morris Water Maze (MWM). For this thesis, I examined the hypothesis that Rem2 function is a vital part of hippocampal learning in mice, using these paradigms and other similar forms of learning that show evidence of being enhanced by hippocampal inactivation—specifically, conditioned taste aversion (CTA). In transgenic mice in which Rem2 was deleted specifically in hippocampus, STFP was ablated, and CTA was enhanced, a pattern of results that strongly suggests integral involvement in hippocampal learning-related processes. Surprisingly, a total Rem2 knockout had no effect on STFP (or MWM), suggesting that molecular mechanisms interact with distributed circuit function to control learning. By testing the role of Rem2 in behaviors that differentially recruit the hippocampus, we have added to our knowledge of molecules that underlie learning and memory in the hippocampus in addition to the role of the hippocampus in these learning and memory circuits.
Participer aux Congrès missionnaires d'Amérique: Un bienfait pour l'église Catholique du Canada
Creators: name: Bolduc, Adèle
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2003
Subjects: subject: Religion, General.

description: À l'issue du Synode des évêques pour l'Amérique, en décembre 1997, il fut décidé que les Congrès missionnaires d'Amérique latine (COMLA) deviendraient des Congrès missionnaires de toute l'Amérique (CAM). Au Canada et ailleurs, les réactions à une telle décision furent variées, puisque la tradition latino-américaine des COMLA datait de plus de vingt ans. L'Auteur se demande si les catholiques du Canada peuvent tirer profit des CAM, et si oui, à quelles conditions. Après avoir établi certains paramètres, l'Auteur propose des attitudes et démarches qui permettraient aux participants, et aux Églises locales qui les envoient, de bénéficier de l'exercice. Notons entre autres le désir de prendre part à un évènement de Pentecôte célèbre dans une Église ou les défis de l'évangélisation sont différents des nôtres.
title: Age-Related Loss of Lumbar Spinal Lordosis and Mobility
title: A Study of 323 Asymptomatic Volunteers
titleType: Subtitle
Creators: name: Dreischarf, Marcel
name: Albiol, Laia
name: Rohlmann, Antonius
name: Pries, Esther
name: Bashkuev, Maxim
name: Zander, Thomas
name: Duda, Georg
name: Druschel, Claudia
name: Strube, Patrick
name: Putzier, Michael
name: Schmidt, Hendrik
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2014
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit

description: Background The understanding of the individual shape and mobility of the lumbar spine are key factors for the prevention and treatment of low back pain. The influence of age and sex on the total lumbar lordosis and the range of motion as well as on different lumbar sub-regions (lower, middle and upper lordosis) in asymptomatic subjects still merits discussion, since it is essential for patient-specific treatment and evidence-based distinction between painful degenerative pathologies and asymptomatic aging. Methods and Findings A novel non-invasive measuring system was used to assess the total and local lumbar shape and its mobility of 323 asymptomatic volunteers (age: 20–75 yrs; BMI <26.0 kg/m2; males/females: 139/184). The lumbar lordosis for standing and the range of motion for maximal upper body flexion (RoF) and extension (RoE) were determined. The total lordosis was significantly reduced by approximately 20%, the RoF by 12% and the RoE by 31% in the oldest (>50 yrs) compared to the youngest age cohort (20–29 yrs). Locally, these decreases mostly occurred in the middle part of the lordosis and less towards the lumbo- sacral and thoraco-lumbar transitions. The sex only affected the RoE. Conclusions During aging, the lower lumbar spine retains its lordosis and mobility, whereas the middle part flattens and becomes less mobile. These findings lay the ground for a better understanding of the incidence of level- and age-dependent spinal disorders, and may have important implications for the clinical long-term success of different surgical interventions.
Determinants of (+)-Limonene Synthase Enantioselectivity
Creators: name: Pham, Le Anh Thu
Publisher: name: Brandeis University
Year: 2023

description: Terpenes make up the most abundant class of naturally occurring organic molecules and can be used in a wide variety of industries. In-depth understanding of their biosynthetic mechanisms allows scientists to reengineer them and manufacture useful chemicals that are not currently available in nature. Additionally, these enzymes make multiple stereocenters with a high degree of specificity, and currently we don’t understand how they achieve this. Limonene is the simplest monoterpene product requiring a simple cyclization reaction by limonene synthase (LS). This molecule is found in nature as two distinct (+) and (-) enantiomers which are each made by their own specific enzymes: (+)-limonene is made by (+)-LS found in navel oranges while (-)-limonene is made by (-)-LS found in spearmint. The goal of my research is to elucidate the determinants of (+)-LS enantioselectivity by swapping the active site residues found in (+)-LS to those found in (-)-LS and making (+)-LS more (-)-enantiomer-specific. Here we report that the single mutation F484L generates a promiscuous enzyme that is slower than the wildtype, but it results in a 50% production of (-)-limonene. Double mutations with a second-shell residue fail to enhance the enantioselectivity further. Future efforts will focus on determining the structure of the mutant enzyme bound to a substrate analogue and determining other mutations that could alter the enantiomeric outcome completely.
Stress distribution in rectangular plates with inserts under axial loading.
Creators: name: Malhotra, Rabinder Nath.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1970
Subjects: subject: Engineering, Mechanical.

description: The stress distribution in finite plates containing rectangular inserts and subjected to axial loads has been investigated in this thesis. For obtaining the solutions, the basic differential equations have been reduced in terms of finite difference form. The influence of modulus of elasticity, shape and orientation of insert on the stress concentration produced has also been examined here. Two-dimensional models containing inserts of rectangular shape and various orientations have been analysed further, by means of the photoelastic techniques. Experimental data have been obtained along the sections where rapid stress variations are expected. Shear difference procedure has been employed to calculate the principal stress and shear stress distributions along these sections.
Prenatal genetic testing and screening for consanguineous couples in clinical practice: is clinical practice consistent with practice guidelines?
Creators: name: Reddy, Neeraja
Publisher: name: Brandeis University
Year: 2015
Subjects: consanguinity
NSGC guidelines
genetic counseling
prenatal testing
stigma

description: Our study assessed the preconception and prenatal genetic counseling services offered to consanguineous couples in North America. We surveyed genetic counselors who have worked in a prenatal setting at any point between the years 2010 and 2015. We received 132 completed surveys and respondents had an average of 7.5 years of experience in a prenatal setting. Respondents in our study had counseled an average of 19 consanguineous couples since the start of their career. The mean baseline risk respondents quoted for consanguineous couples to have a child with a genetic disorder or congenital anomaly varied from 5.02% to 10.55% depending on the degree of relatedness while counselors cited a 3.57% mean baseline risk for unrelated couples. The common psychosocial concerns perceived by respondents when counseling consanguineous couples were stigma, discrimination, fear, blame and influences of cultural and religious beliefs. Fifty-four percent (N=132) of counselors reported that they refer to some guideline with the majority referring to the National Society of Genetic Counselors (NSGC) guideline for genetic counseling and screening of consanguineous couples and their offspring, published in 2002. When asked if they have recommendations for revising the NSGC guidelines, a number of respondents suggested they be revised to include information on offering new technologies such as expanded carrier screening, non-invasive prenatal testing (NIPT), chromosomal microarray and exome sequencing to consanguineous couples as well as strategies to discussing incidental/secondary findings with consanguineous couples. This study, although limited in size, shows that the genetic counseling practices for consanguineous couples is more consistent than observed in the previous study by Bennett et al. (1999).
In the Wake of "Collapse": Life at El Zotz, Guatemala during the Early Postclassic Period
Creators: name: Kingsley, Melanie
Publisher: name: Brandeis University
Year: 2014
Subjects: Maya
Postclassic Period
El Zotz

description: This dissertation conveys the results of excavations at the site of El Zotz, Petén, Guatemala. Specifically, it focuses on a small group of individuals who lived at the site after the demise of its royal dynasty before the tenth century. This work aims to locate the economic and social practices of this Early Postclassic (A.D. 950-1250/1300) community within the context of research into the transition away from dynastic rule and the Classic period “collapse”, in which Maya centers of the southern lowlands were abandoned in the eighth to ninth century A.D., royal dynasties ceased to be memorialized in monumental architecture and art, and the ideas of divine kingship crumpled.\r Evidence from several ancient settlements, including the site of El Zotz, indicates that the turbulent transition from the Classic to Postclassic period was experienced in different ways, at different times, and in different places. Instead of a full abandonment and decay of sites and culture, the tenth century proved to be a dynamic process of adaptation to new sociopolitical circumstances—in the absence of specialists who had been supported by royal courts, for example, individuals developed new techniques for producing obsidian blades and ceramic figurines. Far from being a brand new era, however, ceramic traditions from the Classic period continued far into the Early Postclassic period as populations maintained household practices they had been observing for centuries. Additionally, these individuals adopted elements of larger Postclassic Maya traditions from Yucatan to the southern lowlands and continued to inhabit El Zotz for three to four centuries after the demise of its royal court. \r Findings from the site suggest that the success of this small population likely lay in the sociopolitical processes of the centuries before, specifically, the apparent minimal linkage of individual households to the political center and ruling institutions of El Zotz. In fact, the longevity of certain economic practices imply that at the height of the Classic period, the oversight of households by royal courts was focused on controlling only selective objects. Overall, then, this dissertation aims to give granularity to the interplay between individuals and governing institutions in the past suggesting that, at least at El Zotz, socioeconomic choices were made at the household not community level.
Simulation of incident field coupling with nonuniform transmission lines
Creators: name: Irfan, Nazish
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2007
Subjects: subject: Engineering, Electronics and Electrical.

description: This thesis develops a new algorithm to simulate incident field coupling with high-speed interconnects. The interconnects considered in this thesis are represented by nonuniform multi-conductor transmission lines and are described through the Telegraphers Equations. The developed algorithm is based on the concept of model-order reduction via projection onto Hilbert space, where a reduced-order model representing the transmission line is constructed and employed as a stamp for representing the line. The incident field is represented by a set of terminal sources obtained from the projection operator used in constructing the reduced-order model. In addition to being developed to handle nonuniform transmission lines, the proposed algorithm offers an advantage by guaranteeing the passivity of the reduced order model. Several examples are presented to validate the validity and accuracy of the proposed algorithm.
Smart Sensor with network plug and play capabilities
Creators: name: Sharovar, Igor
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2004
Subjects: subject: Engineering, Electronics and Electrical.

description: This thesis proposes enhancements to the network capabilities of the IEEE 1451.1 standard. The IEEE 1451.1 standard belongs to the popularly used, innovative group of specifications called Smart Sensor. It defines a standardized way to design and develop transducers that can be easily connected to a sensor network. The IEEE 1451.1 standard defines a Common Object Model, which may be used to design the network capability of a Smart Sensor device, but does not define a standard way to connect Smart Sensor devices to different types of networks. A variety of modern technologies is applied today, allowing ease with which network devices connect to networks. One such technology is Universal Plug and Play (UPnP), which defines the mechanism and protocol for the discovery of network devices, as well as their control and event functions. The goal of this thesis is to expand the IEEE 1451.1 standard to make Smart Sensor devices capable of working as UPnP devices. Achieving this will enable the design of an UPnP Smart Sensor that will not only connect different types of transducers to a sensor network, but will also provide a standard and easy mechanism to connect these devices to different networks, including the Internet, while minimizing the effort required for their design and implementation.
Parallel block predictor-corrector methods for the numerical solution of ODE's.
Creators: name: Yang, Liming.
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 1993
Subjects: subject: Engineering, System Science.

description: Stability and efficiency (i.e. derivative function evaluations per processor) are the two main considerations in deriving good numerical methods for ODE's. The underlying challenge is to increase the stability region while maintaining or even improving efficiency. To achieve this, some extensions of predictor-corrector based methods, which apply a fixed number of corrector iterations, are considered. This thesis studies two particular members of a family of methods called the Parallel Block Predictor-Corrector Family, which are based on these extensions. These two members are called PBPC/2 and PBPC/3. They are characterized by iterated corrector evaluations carried out in two adjacent blocks. Stability properties of these methods are analyzed and compared with some existing block-based parallel predictor-corrector methods. Performance of the PBPC/2 and PBPC/3 methods and these existing block-based parallel predictor-corrector methods is compared using solution formulas which extend over a range of integration orders and which use various number of processors. The results obtained from a stability analysis and from a collection of numerical experiments indicate that the proposed methods provide a potential opportunity to balance stability properties and efficiency in the parallel computer systems.
title: Ð£Ð³Ð»ÐµÑÐ¾Ð´Ð½ÑÐ¹ Ð½Ð°Ð½Ð¾Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¾Ñ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð² Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÐ¿Ð¾ÐºÑÐ¸Ð´Ð½ÑÑ ÑÐ¼Ð¾Ð»
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Carbon nanomodifier of composite materials based on epoxy resins
Creators: name: ÐÑÐ°ÐµÐ², ÐÐ°Ð½Ð¸Ð»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: ÑÐ¿Ð¾ÐºÑÐ¸Ð´Ð½ÑÐµ ÑÐ¼Ð¾Ð»Ñ
Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ ÑÐ¿Ð¾ÐºÑÐ¸Ð´Ð½ÑÑ ÑÐ¼Ð¾Ð»
Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ðµ ÑÐ¿Ð¾ÐºÑÐ¸Ð´Ð½ÑÑ ÑÐ¼Ð¾Ð»
epoxy resins
application epoxy resins
preparation epoxy resins

description: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð½Ð°ÑÐµÐ»ÐµÐ½Ð¾ Ð½Ð° Ð°Ð½Ð°Ð»Ð¸Ð· Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð´Ð¾Ð±Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð½Ð°Ð½Ð¾ÑÐ³Ð»ÐµÑÐ¾Ð´Ð° Ð½Ð° Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ½ÑÐµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ¾Ð², ÑÑÐ¾Ð±Ñ Ð²ÑÑÐ²Ð¸ÑÑ Ð¿Ð¾ÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½ÑÐµ ÑÐ»ÑÑÑÐµÐ½Ð¸Ñ Ð² Ð¸Ñ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°Ñ.
description: The study aims to analyze the effect of adding nanocarbon on strength characteristics of composites to identify potential improvements in their properties.
title: ÐÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ¾ÑÐ¼Ð¾Ð·Ð½Ð¾Ð³Ð¾ ÑÑÐ¿Ð¿Ð¾ÑÑÐ° Ð´Ð»Ñ Ð¼Ð¾ÑÐ¾ÑÐ¸ÐºÐ»Ð° Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÐ¾Ð¿Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Design of a motorcycle brake caliper based on topological optimization
Creators: name: ÐÐ¸Ð»Ð°Ð»Ð¾Ð², ÐÐ»ÑÐ´Ð°Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: SIMP Ð¼ÐµÑÐ¾Ð´
ÑÐ¾Ð¿Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ°Ñ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ
Ð¼Ð¸Ð½Ð¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ Ð¼Ð°ÑÑÑ
ÑÐ¾ÑÐ¼Ð¾Ð·Ð½Ð¾Ð¹ ÑÑÐ¿Ð¿Ð¾ÑÑ
Ð¼Ð¾ÑÐ¾ÑÐ¸ÐºÐ»
SIMP method
topological optimization
mass minimization
brake caliper
motorcycle

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¾ÑÐ¼Ð¾Ð·Ð½Ð¾Ð³Ð¾ ÑÑÐ¿Ð¿Ð¾ÑÑÐ° Ð´Ð»Ñ Ð¼Ð¾ÑÐ¾ÑÐ¸ÐºÐ»Ð° Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ ÑÐ¾Ð¿Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¸ Ð°Ð´Ð´Ð¸ÑÐ¸Ð²Ð½ÑÑ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¹. ÐÑÐ½Ð¾Ð²Ð½Ð°Ñ ÑÐµÐ»Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð·Ð°ÐºÐ»ÑÑÐ°Ð»Ð°ÑÑ Ð² ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ð¸ Ð¼Ð°ÑÑÑ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ð¿ÑÐ¸ ÑÐ¾ÑÑÐ°Ð½ÐµÐ½Ð¸Ð¸ ÐµÑ ÑÐºÑÐ¿Ð»ÑÐ°ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð½Ð°Ð´ÐµÐ¶Ð½Ð¾ÑÑÐ¸. ÐÐ½Ð°ÑÐ°Ð»Ðµ Ð¸ÑÑÐ»ÐµÐ´ÑÑÑÑÑ Ð²Ð¸Ð´Ñ ÑÐ¾ÑÐ¼Ð¾Ð·Ð½ÑÑ ÑÐ¸ÑÑÐµÐ¼, Ð´Ð°Ð»ÐµÐµ Ð¸Ð·ÑÑÐ°ÐµÑÑÑ Ð¼ÐµÑÐ¾Ð´Ñ ÑÐ¾Ð¿Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸, Ð´Ð°Ð»ÐµÐµ Ð¼ÐµÑÐ¾Ð´ SIMP, Ð¿Ð¾ÑÐ»Ðµ ÑÑÐ¾Ð³Ð¾ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÑÐµÑÑÑ Ð´ÐµÑÐ°Ð»Ñ, ÐºÐ¾ÑÐ¾ÑÐ°Ñ Ð¿Ð¾Ð´Ð²ÐµÑÐ³Ð°ÐµÑÑÑ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸, Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸, ÑÐ°ÑÑÐµÑ Ð½Ð° Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð½Ð¾ Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ðµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ.
description: This work is dedicated to the design of a motorcycle brake caliper using topological optimization and additive manufacturing technologies. The main objective of the research was to reduce the weight of the structure while maintaining its operational reliability. First, various types of braking systems are examined, followed by a study of topological optimization methods. The SIMP method is then considered, after which the part is designed, optimized, processed, and analyzed for stress-strain state.
Vibrations of a columnar vortex in a trapped Bose-Einstein condensate
Creators: name: Koens, Lyndon
name: Simula, Tapio
name: Martin, Andrew M.
Publisher: name: Swinburne
Year: 2024

description: We derive a governing equation for a Kelvin wave supported on a vortex line in a Bose-Einstein condensate, in a rotating cylindrically symmetric parabolic trap, where it is assumed that the shape of the vortex line is dominated by the properties of the condensate at the center of the trap. From this solution the Kelvin wave dispersion relation is determined. In the limit of an oblate trap and in the absence of longitudinal trapping our results are consistent with previous work. We show that the derived Kelvin wave dispersion in the general case is in quantitative agreement with numerical calculations of the Bogoliubov spectrum.
Tuning Active Nematic Systems: An Investigation of Geometrical and Light-Responsive Mechanisms
Creators: name: Zarei, Zahra
Publisher: name: Brandeis University
Year: 2024
Subjects: Physics

description: Active nematics are out of equilibrium systems that, at the molecular level, consume energy toproduce motion on larger scales. They naturally display turbulence, but controlling this turbulence allows us to modify their behavior. One method of control is by confining them within specific geometries, which necessitates knowledge of how these geometries influence their dynamics. In this dissertation, We used two methods to control the nematic: rigid boundaries and external stimuli. First, we confined the nematic to tame the dynamics using annulus geometry. Varying the annulus’s inner radius and width, we uncover different dynamical states and cluster them using circulation and defect density order parameters. Second, we created a light-activated active nematic using a light-responsive kinesin motor. We characterize the steady-state flow and defect density as a function of applied light. We also examine the transient behavior as the system switches between steady states upon changes in light intensities. Our work establishes an experimental platform that can exploit spatiotemporally- heterogeneous patterns of activity to generate targeted dynamic states.