cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Investigating the mechanical properties of aluminum and epoxy polymer using molecular dynamics simulations
Creators: name: Pratt, Douglas R.
Publisher: name: Memorial University of Newfoundland
Year: 2020

description: Molecular Dynamics simulations were used to recreate mechanical testing procedures and to predict the mechanical properties of aluminum and epoxy polymers. In the first study, a procedure for performing nanoindentation on single crystal FCC aluminum was designed and used to test which available force field and parameter sets were best suited for accurately predicting the elastic modulus. The modulus was calculated from the generated force-displacement curve using Oliver & Pharr as well as Hertz indentation theory. The results were compared to literature data of single crystal aluminum and concluded the Embedded-Atom Method force field was the most accurate parameter model. The second study used Molecular Dynamics to simulate the curing of epoxy resins with a hardener to compare the effect of crosslinking reaction completion on the polymer’s predicted mechanical properties obtained from a uniaxial tensile test. Results were compared to experimental results of the same epoxy polymer. The work concluded that the cure rate had a significant influence on the elastic modulus and density, while little effect on Poisson’s ratio.
Verfahrensordnung MWS-Kommission Ethik der Forschung
Creators: name: Max Weber Stiftung - Deutsche Geisteswissenschaftliche Institute im Ausland
Publisher: name: Zenodo
Year: 2023
Subjects: Max Weber Stiftung
Ethik

description: Die vorliegende Verfahrensordnung beschreibt die Aufgaben, Zusammensetzung und Arbeitsweise der Ethikkommission innerhalb der Max Weber Stiftung.
An iterative algorithm for parametrization of shortest length shift registers over finite rings
Creators: name: Kuijper, M.
name: Pinto, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: Symbolic Computation (cs.SC)
subject: FOS: Computer and information sciences
subject: 94A55, 11T71

description: The construction of shortest feedback shift registers for a finite sequence S_1,...,S_N is considered over the finite ring Z_{p^r}. A novel algorithm is presented that yields a parametrization of all shortest feedback shift registers for the sequence of numbers S_1,...,S_N, thus solving an open problem in the literature. The algorithm iteratively processes each number, starting with S_1, and constructs at each step a particular type of minimal Gröbner basis. The construction involves a simple update rule at each step which leads to computational efficiency. It is shown that the algorithm simultaneously computes a similar parametrization for the reciprocal sequence S_N,...,S_1.
description: Submitted
Macculloch Hall Historical Museum: a case study on decolonizing a historic house museum
Creators: name: Perez, Adiana Lecelle
Publisher: name: No Publisher Supplied
Year: 2020

description: Macculloch Hall Historical Museum, a historic house museum located in Morristown, New Jersey is a case study in applying decolonizing practices in an educational institution without indigenous or minority collections. Using MHHM fills a gap in Museum Studies literature and addresses the issue of transparency for historic sites that reside on lands expropriated from native peoples, or on lands that housed a large number of enslaved people (like southern plantations). Currently, the existing literature provides a strong framework for large museums and historic sites looking to decolonize their practices and programming. Little has been done, thus far, to provide models for museums that do not fall within this classification but still seek to become more transparent about the history of their sites or collections. This thesis will first explore the concept of decolonization and what it means to decolonize. Next, this thesis evaluates the impact of the United States’ colonial history and the Eurocentric practices that have been enforced in historic sites and museums. Specifically, MHHM’s own colonial past and the challenges that exist in this institution's efforts to decolonize is addressed. Lastly, I will look at additions that can be implemented in MHHM’s historic garden, educational curriculum that can be added, historical material that can be included in interpretive tours and exhibits, and avenues for collaboration that can be explored with minority and Lenape groups. By evaluating historic challenges to museum decolonization, and failures in previous attempts by other institutions to decolonize, this thesis will identify steps museums and historic sites without indigenous and minority collections can take to successfully implement positive decolonization practices.
Reading for Resurgence: Indigenous Literatures, Communities, and Learning
Creators: name: Hanson, Aubrey
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Education--Language and Literature
subject: Indigenous
subject: Education
subject: Curriculum
subject: Language Arts
subject: Literature

description: This study explores the relationships between Indigenous literatures, Indigenous communities, and learning. My primary research question was this: How do Indigenous literatures matter to the resurgence of healthy Indigenous communities? To investigate this question, I held individual conversations with 14 participants: seven Alberta secondary school teachers and seven Indigenous writers from across Canada. During these conversations, we discussed why Indigenous literatures matter to Indigenous communities through each participant’s experiences and perspectives. To analyze these conversations, I took up a hermeneutic and Indigenous métissage, interweaving my emerging arguments with perspectives from participants and from relevant scholarship. Through this interpretive process, I developed four primary understandings in relation to my research question. I found that Indigenous literatures matter to the resurgence of healthy Indigenous communities: first, because they create community; second, because they challenge colonial contexts, often through challenging learning; third, because they call readers to relate and respond; and fourth, because they enable transformation in education and in relationships between Indigenous and non-Indigenous people. By pursuing the rich connections between Indigenous literatures, Indigenous communities, and learning, this study asks what it means to read for resurgence. I therefore explore the spaces of possibility opened up by the work of particular writers and teachers. I also explore spaces where there is room for growth, amplifying the ongoing call for better ways of engaging with Indigenous content in Canadian schooling. Through its examinations, this research contributes to scholarship in Indigenous education and Indigenous literary studies, as well as offering implications for educational practice, particularly in relation to language arts curricula.
Effect of cam-type femoroacetabular impingement on hip joint kinematics
Creators: name: Given, Laura Elizabeth
Publisher: name: University of British Columbia
Year: 2010

description: Cam-type femoroacetabular impingement is a painful disorder common in young adults, caused by decreased concavity of the femoral head-neck. It is associated with hip osteoarthritis, though the exact mechanism of joint damage is not fully understood. Gait analysis has shown that cam deformities cause changes to coupled motions in vivo, though it is unclear whether these changes are compensatory or due to direct bony contact. The objective of this study was to determine how cam deformities and surgical resection affect patterns of hip rotation, translation of the center of rotation, and force required to flex and abduct the hip. We assessed the relationship between deformity and coupled motions, translations of center of femoral rotation, and force required to create active unconstrained flexion and abduction ex vivo. Three deformities were simulated on each of six hemi-pelvis/proximal femur specimens. Four muscles were simulated by cables drawn from the distal tendon to the location of proximal attachment. Motion was created by actively shortening one of these cables while statically loading the others. Markers on the femur and pelvis were tracked, allowing for calculation of joint rotations and translations. A load cell on the active cable allowed for measurement of the applied force. We found that deformity resulted in increased external rotation, adduction and translation during flexion and increased internal rotation, extension and decreased translation during abduction. We also found that when a more severe deformity was present, more force was required to create both flexion and abduction to the same angle. Further, we found that resection resulted in increased internal rotation and translation during flexion and decreased internal rotation during abduction. Less force was required to create flexion and abduction following resection. Changes to motion patterns occur as a result of changed contact loads between the femoral head and acetabulum, resulting in loading of regions of articular cartilage which may not be optimized for these loads and may, therefore, begin a degenerative cascade leading to osteoarthritis. As coupled motions were observed within ranges of flexion and abduction required for daily living, it is recommended that resection be performed in an attempt to slow the progression of osteoarthritis by limiting contact between the femoral head-neck and acetabulum.
Behavioural and physiological responses of Steller sea lions to invasive marking techniques : evidence of post-operative pain
Creators: name: Walker, Kristen Amy
Publisher: name: University of British Columbia
Year: 2010

description: Marine mammal research often requires marking and tracking animals to collect long-term ecological data, but these procedures may cause pain. The aim of this thesis was to assess the behavioural and physiological effects of invasive marking and tracking techniques used on marine mammals. This thesis consists of 7 chapters, beginning with a general introduction (Ch. 1) and ending with a general discussion (Ch. 7). Chapter 2 reviews the literature on short- and long-term effects of marking and tagging, concluding that the preponderance of studies focus on injuries and behavioural changes and that no research prior to this thesis has assessed post-operative pain in marine mammals. Chapters 3 to 6 describe experiments designed to fill this gap by focussing on pain responses of endangered Steller sea lions to invasive marking (hot-iron branding) and tracking (implanting a tracking device via intra-abdominal surgery) procedures. Seven behaviours associated with post-operative pain were monitored for 3 d pre- up to 12 d post-surgery with the aim of describing behavioural responses after abdominal surgery (Ch. 3) and comparing the efficacy of two analgesic treatments (Ch. 4). In both studies sea lions spent more time with their back arched and standing, and spent less time lying on the ventral side and in locomotion after surgery, regardless of analgesic treatment. Chapter 5 described the behavioural responses of sea lions after hot-iron branding. In the 3 days after branding sea lions spent more time grooming their branded area, less time with pressure on their branded side, and less time in the pool and in locomotion. Chapter 6 assessed physiological (breathing and heart rate) and behavioural responses of anaesthetised sea lions during hot-iron branding. Sea lions had increased heart and breathing rate during and in the minutes after hot-iron branding. Behavioural responses during branding included trembling and head and shoulder movements. These findings illustrate behavioural and physiological responses that can be applied to assessing pain in sea lions, and suggest that more effective analgesic protocols are required to mitigate pain responses after hot-iron branding and abdominal surgery.
Higgs boson pair production and decay at NLO in QCD: the $b\bar{b}γγ$ final state
Creators: name: Li, Hai Tao
name: Si, Zong-Guo
name: Wang, Jian
name: Zhang, Xiao
name: Zhao, Dan
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Higgs boson pair production at the LHC provides a probe to the Higgs boson self-coupling. The higher-order QCD corrections in this process are sizable and must be taken into account in comparison with data. Due to the small cross section, it is necessary to consider at least one of the Higgs bosons decaying to bottom quarks. The QCD corrections to the decay processes would also be important in such cases. We present a full calculation of the total and differential cross sections for the $b\bar{b}γγ$ final state with next-to-leading order (NLO) QCD corrections. After applying typical kinematic cuts in the final state, we find that QCD NLO corrections in the decay decrease the LO result by $19\%$ and reduce the scale uncertainties by a factor of two. The QCD corrections to the invariant mass $m_{jjγγ}$ distribution, the transverse momentum spectra of the leading bottom quark jet and photon are significant and can not be approximated by a constant factor.
description: 19 pages, 4 figures; v2: to match the journal version
Strengthening Family Climate and Parent-Adolescent Relationship Quality Through the Teen Positive Parenting Program
Creators: name: Smygwaty, Serena
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Psychology--Developmental
subject: Teen Triple-P
subject: Family Climate
subject: Parent-adolescent relationships

description: This study examined the baseline characteristics of five parents who accessed the Level Four Group Teen Triple-P Positive Parenting Program (LFG Teen PPP) within Alberta, Canada, as well as pre-post changes in two parents and one parent-adolescent dyad following program completion. The LFG Teen PPP is an eight-session behavioural parent-training program designed to reduce adolescent social-emotional and behavioural problems (SEBs), parent-adolescent conflict, inter-parental conflict over child rearing, and parental maladjustment and to improve familial and parent-adolescent relationship quality through teaching positive parenting practices. Measures of demographics, adolescent SEBs, dysfunctional parenting practices, parent-adolescent conflict, inter-parental conflict over child rearing, parental mental health, family climate, and parent-adolescent relationship quality were completed by parents and adolescents immediately after the first (T1) and last (T2) sessions and one-month after the last (T3) session. Results indicated that parents were similar to one another with regards to baseline demographics, severity of adolescent SEBs, degree of inter-parental conflict over child rearing, and family climate, and were aligned with international samples with respect to baseline demographics, use of dysfunctional parenting practices, and degree of parent-adolescent conflict. Results indicated statistically and clinically significant changes in most parent and adolescent-reported outcomes. Implications, limitations, and directions for future research are discussed.
Formulation of a National e-Health Strategy Development Framework for Pakistan
Creators: name: Ali, Sajid
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Health Sciences
subject: Public Health
subject: Health Care Management

description: Health systems across developing and developed countries face constant and difficult challenges in coping with an ever increasing demand for health care. At the same time, the world has witnessed an ever increasing influence of (ICT) in health care delivery. This has become known as ‘e-health’ and is broadly composed of four domains such as telehealth, health informatics, e-Learning and e-Commerce. e-Health in spite of its usefulness in isolated settings across the globe, still lacks sustainable integration into existing health systems for lack of ‘thoughtful strategy’. This thesis establishes an e-Health Strategy Development Framework (e-HSDF). The methodology includes literature review to identify tools for conceptual framework along with synthesis of evidence to formulate the complete the e-HSDF. Pakistan was used as an example for hypothetical application of the e-HSDF. The completion of the framework contributes to the field of e-health implementation by providing a structured, systematic and evidence-based tool.
The Safety and Cost-Effectiveness of Carotid Angioplasty and Stenting in Calgary
Creators: name: Almekhlafi, Mohammed
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Epidemiology
subject: Economics

description: Objectives To evaluate the safety and cost of carotid stenting in Calgary. Methods A cost-utility analysis from the perspective of the Canadian health care system was performed comparing stenting to endarterectomy using a decision analytic model. A prospective cohort study was done for trans cranial Doppler monitoring during stenting procedures. Findings were correlated with 24-hour MRI brain lesions using a binomial regression model. Results Stenting was more expensive than endarterectomy ($6106.84 incremental cost) and had a lower effectiveness (- 0.12 QALYs). Results were influenced by the procedure costs and were sensitive to patients’ characteristics. In 26 subjects who underwent stenting, MRI lesions were detected in 76%. Procedural monitoring showed a median of 224.5 emboli. Large emboli correlated with MRI lesions after adjusting for age and symptoms status. Conclusion To improve the outcomes of carotid stenting, research should aim to improve the procedure safety without increasing its costs.
Effect of the band structure topology on the minimal conductivity for bilayer graphene with symmetry breaking
Creators: name: Dávid, Gyula
name: Rakyta, Péter
name: Oroszlány, László
name: Cserti, József
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using the Kubo formula we develop a general and simple expression for the minimal conductivity in systems described by a two by two Hamiltonian. As an application we derive an analytical expression for the minimal conductivity tensor of bilayer graphene as a function of a complex parameter $w$ related to recently proposed symmetry breaking mechanisms resulting from electron-electron interaction or strain applied to the sample. The number of Dirac points changes with varying parameter w, this directly affect the minimal conductivity. Our analytic expression is confirmed using an independent calculation based on Landauer approach and we find remarkably good agreement between the two methods. We demonstrate that the minimal conductivity is very sensitive to the change of the parameter $w$ and the orientation of the electrodes with respect to the sample. Our results show that the minimal conductivity is closely related to the topology of the low energy band structure.
description: Extended version of v1, 8 pages, 4 figures
title: Studies on marginally trapped tubes with positive Cosmological Constant Λ
Creators: name: Su, Haipeng
Publisher: name: Memorial University of Newfoundland
Year: 2019

description: In general relativity, the cosmological constantΛ is a special term in the Einstein
 field equations. Many observational clues suggest that Λ is positive. In this thesis,
 we investigate the behavior of quasilocal horizons of black holes under the condition
 of positive Λ. We modify the Λ = 0 condition in [10] and recalculate the evolution of
 marginally trapped tube in Tolman-Bondi spacetime with non-vanishing Λ. Then, we
 apply the obtained results to some examples of the gravitational collapse of spherical
 dust clouds to investigate the influence of positive Λ on marginally trapped tube
 during the formation or growth of black hole. By analysis and comparison, we have
 found that there are significant effects of positive cosmological constant Λ on the
 behavior of marginally trapped tube evolutions in dust clouds collapse.
Plant Mechanics, Optimization and Remodeling
Creators: name: Gholamirad, Maryam
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Mechanical
subject: Engineering, Mechanical

description: The thesis presented here is focused on plant mechanics and structural optimization; the major finding of the work is that the micro-structure of the Arabidopsis root does sense and show reactions to external mechanical stresses; such reactions involve re-orientation of the microtubule (MT) cytoskeleton closer to the maximum principal tensile stress direction after a significant bending moment is applied. If the root is free of external mechanical stresses (only having internal turgor pressure) then there are two scenarios: in the first scenario, within the cell division zone, the microtubules direction is perpendicular to the main axis of the cell (along maximum principal tensile stress direction and aligned with hoop stress).In the second scenario, within the cell elongation zone, microtubules make a 45 degree angle with the main axis of the cell (possibly due to maximum shear stress). Another focus of the work presented here is to draw inspiration from nature and apply the “self-optimizing” rules found in natural tissues to engineering frame structural design. This was achieved by simulating frame structures based on two different theories: Wolff’s theory (for natural tissues) and Michell’s theory (for engineering comparative analysis). The performance of the two frame structures studied was evaluated against each other, and it was shown that, for an example of a cantilever beam, structures created based on Wolff’s theory are easier to generate under dimensional restrictions and have greater strength than analogous frame structures modeled based on Michell’s theory. In order to observe microtubule re-orientation, Arabidopsis root cells were observed by means of a confocal microscope, and the data were analyzed using image processing to find the dominant pattern of microtubules. The influence of gravity on microtubules direction was also studied by rotating control samples in different directions; gravity was found to have negligible impact on microtubule orientation. The root cell was then simulated numerically to study the direction of principal stresses, and confirm the re-orientation of the microtubules closer to the maximum principal tensile stress direction. For the strength comparison of the frame structures based on the two theories (Wolff and Michell), a cantilever domain was defined, and the curves were then generated for a computer programming environment, and results were later exported for finite element analysis.
Cosa resta dell’acqua? Tra narcisi e dispositivi di visione
Creators: name: Cappelletto, Chiara
Publisher: name: Status Quaestionis
Year: 2018

description: This article discusses water both as a natural substance and as a medium of visualization. It describes how this liquid matter is increasingly thought of as a cultural artifact, and proposes an analogy between our experience of it as surface and mass, and its quality as mirror and environment. By examining the myth of Narcissus and its many variants, and recalling the reasons why the idea of a natural image is untenable, this analysis suggests that onlookers are «media amphibians», capable of recognizing faces in reflected images and immersing themselves in other bodies and spaces.
description: Status Quaestionis, No 14 (2018): L’acqua in letteratura e nelle arti: storie, simboli, immagini
Can we distinguish the adiabatic fluctuations and isocurvature fluctuations with pulsar timing arrays?
Creators: name: Chen, Zu-Cheng
name: Liu, Lang
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Understanding the nature of primordial fluctuations is pivotal to unraveling the Universe's early evolution. While these fluctuations are observed to be nearly scale-invariant, quasi-adiabatic, and Gaussian on large scales, their small-scale behavior remains poorly constrained, offering a potential window into new physics. Recent detections of a stochastic gravitational wave background in the nanohertz frequency range by pulsar timing arrays (PTAs), including NANOGrav, PPTA, EPTA+InPTA, and CPTA, align with astrophysical predictions from supermassive black hole binaries but could also encode signatures of primordial phenomena. We investigate whether the observed signal originates from primordial isocurvature or adiabatic fluctuations by fitting them to the latest NANOGrav dataset. Through comprehensive Bayesian model comparison, we evaluate the distinguishability of these scenarios given current PTA sensitivities. Our results demonstrate that existing data cannot conclusively differentiate between isocurvature and adiabatic sources, highlighting the need for enhanced observational capabilities to probe the primordial universe at small scales.
description: 12 pages, 4 figures, version accepted for publication in Sci. China Phys. Mech. Astron. (SCPMA);
Dall’inizio alla fine del mondo Percorsi dell’acqua nella Bibbia ebraica
Creators: name: Martone, Corrado
Publisher: name: Status Quaestionis
Year: 2018

description: This article deals with the main similes and metaphors concerning the water found in the Hebrew Bible, namely the water seen as primeval element in the creation narrative, the many metaphors regarding the rain, the drew, the hailstorm. Subsequently, the article focuses on other aspects and uses of the water such as the drinking water, the water seen as a healing element, and the central role of the water in the priestly purity rules. The article ends with an analysis of the use of the water in some Biblical descriptions of the end of the world.
description: Status Quaestionis, No 14 (2018): L’acqua in letteratura e nelle arti: storie, simboli, immagini
Data from: Ecological and biological indicators of the accuracy of species distribution models: lessons from European bryophytes
Creators: name: Collart, Flavien
name: Broennimann, Olivier
name: Guisan, Antoine
name: Vanderpoorten, Alain
Publisher: name: figshare
Year: 2023
Subjects: Terrestrial ecology
Community ecology (excl. invasive species ecology)

description: Occurrence data filtered from GBIF.org, trait database and dataset from IFBL square inventory ( Sotiaux & Vanderpoorten, 2015, updated in www.biogenet.ulg.ac.be ). These datasets were used for the analyses in the paper "Ecological and biological indicators of the accuracy of species distribution models: lessons from European bryophytes" accepted in Ecography (10.1111/ecog.06721)
Detecting the superfluid critical momentum of Bose gases in optical lattices through dipole oscillations
Creators: name: Saito, Takuya
name: Danshita, Ippei
name: Ozaki, Takeshi
name: Nikuni, Tetsuro
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study stability of superflow of Bose gases in optical lattices by analyzing the Bose-Hubbard model within the Gutzwiller mean-field approximation. We calculate the excitation spectra of the homogeneous Bose-Hubbard model at unit filling to determine the critical momenta for the Landau and dynamical instabilities. These two critical momenta are shown to approach each other when the on-site interaction increases towards the Mott transition point. In order to make a direct connection with realistic experiments, we next take into account a parabolic trapping potential and compute the real-time dynamics of dipole oscillations induced by suddenly displacing the trap center. We consider the following two cases: standard softcore bosons, whose interparticle interactions include the on-site one only, and hardcore bosons with long-range dipole-dipole interactions. For both cases, we show that the dipole oscillation is significantly damped when the maximum local momentum exceeds a certain threshold, which quantitatively agrees with the critical momentum for the dynamical instability in the homogeneous system. In the case of dipolar hardcore bosons, the dynamical instability of dipole oscillations leads to the formation of checkerboard density waves in the superfluid phase near the boundary to the supersolid phase.
description: 21 pages, 27 figures
Activation of small molecules by pincer iridium complexes
Creators: name: Field, Kathleen Donohue
name: Field, Kathleen Donohue
Publisher: name: No Publisher Supplied
Year: 2014

description: Since the initial report of pincer complexes in the late 1960’s, much research has been undertaken to understand the reactivity and applicability of these complexes. This thesis aims to add to the rich knowledge of pincer complexes and the activation of small molecules to lead to interesting chemical transformations. Advantageously, the pincer framework can be easily adapted by changing different aspects of the ligand. The synthesis, characterization and reactivity of (Me-PCP)IrHn, in which the para position on the backbone of the catalyst has been changed from a hydrogen to a methyl group is reported. Finally, attempts to isolate the highly reactive 3-coordinate 14-electron (Me-PCP)Ir species are also addressed. Rather than isolation or observance of any active catalytic species proposed as a 14e-, agostic, solvated, or dimeric species, it has been found that the cyclometalation or C-H activation of the tbutyl group attached to one of the phosphorous atoms occurs readily. Characterization of cyclometalated complexes and an interesting cyclometalated insertion product is described. Two different mechanisms are proposed and discussed in relation to previously cited pathways for the formation of each complex. The knowledge of the activation and binding of oxygen as well as the reactivity of oxidants and isolation of reactive intermediates is limited. The synthesis and characterization of two (Me-PCP)Ir oxygen species is detailed via reaction with oxygen directly followed by a discussion of the reactivity with other oxidants. A combined experimental and computational study was completed to determine the binding energies for the addition of a variety of ligands to the metal center of (PCP)IrHCl, (PCP)IrH2, and the (PCP)Ir fragment. The thermodynamics were determined directly through equilibrium reactions and compared to values derived from DFT calculations utilizing a variety of functionals with good agreement. Finally, the activation of hydrazine and related compounds by the parent (PCP)IrH2 complex is achieved and leads to both dehydrogenation and hydrogenation of hydrazine by pincer iridium (PCP) type catalysts to synthesize N2, H2 and NH3. The reactivity of other pincer complexes for this reaction will be compared and a computationally calculated mechanism for both pathways will be discussed along with supporting experimental evidence.
On Deformity: Bodies in Contemporary Canadian Fiction
Creators: name: Ram, Véronique Dorais
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Literature--Canadian (English)
subject: Deformity
subject: Nation
subject: Body
subject: Fiction
subject: Family

description: This dissertation ponders how deformity acts as an index of resistance to the conventional family saga; it challenges the authority of the genre, which perpetuates conformity to affirm the existence of a national identity. I open with a history of the trope of deformity and a theory on its applicability to questions of the nation in Canadian fiction. Bonnie Burnard’s A Good House begins the literary analysis and considers how Daphne’s asymmetrical face exemplifies the novel’s overarching deformation of the domestic realist text. Ann-Marie MacDonald’s Fall on Your Knees rereads Victorian conventions to demonstrate the perversity of power and the purity of individuality as the characters contest hegemonic cultural projects. The giants and runts that make up the Hervé family in D. Y. Béchard’s Vandal Love rewrite the traditional roman de la terre and exhibit how the trope of deformity underscores an indefinable Canadian identity – one that possesses roots only by seeking to disavow those roots. Anna’s body in Susan Swan’s The Biggest Modern Woman of the World resists all acts of colonization, including historical proofs, and performs a parody that reverses the ideal of the female body as a trope for the mother nation. Lastly, the stories of Fielding and Smallwood in A Colony of Unrequited Dreams and The Custodian of Paradise destabilize the formulation of a collective unconscious based on historical writings. Their symbolic deformities reveal how Newfoundland’s status as a nation is both fact (as historically represented by Smallwood) and fiction (as imagined by Fielding). The deformed bodies in these texts are non-compliant disruptions of national discourses that enable national identity through exclusive ideological frameworks; they destabilize centralized myths of the nation frequently employed by supporters of the classical canon to reaffirm a sense of cultural existence. Though they criticize the superficiality of kinship, they nonetheless highlight a still prevalent need for roots, physical and historical, as they reconstitute a more flexible sense of community.
Dystroglycan-dependent modulation of aquaporin-4 distribution : a new target to prevent brain edema
Creators: name: Noel, Geoffroy Pierre Jean-Claude
Publisher: name: University of British Columbia
Year: 2010

description: Aquaporin-4 (AQP4) constitutes the principal water channel in the brain and is mainly clustered at the perivascular astrocyte endfeet. This polarized distribution is of major importance because it enhances water fluxes thereby modulating brain swelling in different pathophysiological conditions. Evidence points to a role of the dystroglycan (DG) complex in the localization of AQP4. To investigate in vivo the role of extracellular matrix (ECM) ligand-binding to glycosylated sites on DG in the polarized distribution of AQP4, I used the Largemyd mouse that presents defective O-glycosylation of DG and found a loss of AQP4 at astrocyte endfeet. Using a mixture of ECM molecules present at the perivascular basal lamina, I found that DG clustering is regulated by laminin in astrocyte cultures. Furthermore, I show that laminin induces a reduction in AQP4-mediated water transport. Subsequently, the analysis of cell surface compartmentalization of AQP4 showed that it depends on both cholesterol and DG. Further experiments revealed an interdependent regulation between laminin binding to DG and lipid raft reorganization. I next investigated the signaling events that may be involved in the coclustering of AQP4 and DG in astrocytes. An increase in tyrosine phosphorylation was observed at 3h in laminin-treated astrocytes and this was concomitant to the maximum laminin-induced clustering of lipid rafts and AQP4. I identified the protein-serine kinase C delta (PKCdelta) as one of the main kinases exhibiting an increase in tyrosine phosphorylation upon laminin treatment. The inhibition of PKCdelta showed that it is involved not only in the regulation of the laminin-induced clustering of AQP4 but also in AQP4-mediated water transport in astrocytes. Given the crucial role of AQP4 distribution in brain edema, I finally focused on the identification of drugs modulating the laminin-dependent AQP4 clustering which may prevent brain edema. By screening a chemical library, I identified 6 drugs and found that chloranil prevents AQP4 clustering by activating metalloproteinases that cleave DG. These findings revealed the molecular mechanisms regulating the laminin-induced and DG-dependent clustering of AQP4 at astrocyte endfeet and provide a tool to identify modulators of AQP4 clustering that will be tested in models of brain edema.
Detecting inertial effects with airborne matter-wave interferometry
Creators: name: Geiger, Remi
name: Ménoret, Vincent
name: Stern, Guillaume
name: Zahzam, Nassim
name: Cheinet, Patrick
name: Battelier, Baptiste
name: Villing, André
name: Moron, Frédéric
name: Lours, Michel
name: Bidel, Yannick
name: Bresson, Alexandre
name: Landragin, Arnaud
name: Bouyer, Philippe
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: Space Physics (physics.space-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Inertial sensors relying on atom interferometry offer a breakthrough advance in a variety of applications, such as inertial navigation, gravimetry or ground- and space-based tests of fundamental physics. These instruments require a quiet environment to reach their performance and using them outside the laboratory remains a challenge. Here we report the first operation of an airborne matter-wave accelerometer set up aboard a 0g plane and operating during the standard gravity (1g) and microgravity (0g) phases of the flight. At 1g, the sensor can detect inertial effects more than 300 times weaker than the typical acceleration fluctuations of the aircraft. We describe the improvement of the interferometer sensitivity in 0g, which reaches 2 x 10-4 ms-2 / \surdHz with our current setup. We finally discuss the extension of our method to airborne and spaceborne tests of the Universality of free fall with matter waves.
description: 7 pages, 6 figures. The final version of this article is available in OPEN access (free) from the editor website at http://www.nature.com/ncomms/journal/v2/n9/full/ncomms1479.html
Heat-charge separation in a hybrid superconducting quantum Hall setup
Creators: name: Panu, Carlo
name: Taddei, Fabio
name: Polini, Marco
name: Yacoby, Amir
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Separating heat from charge in a material is an extremely challenging task since they are transported by the very same carriers, i.e. electrons or holes. In this Letter we show that such separation can reach 100% efficiency in a hybrid superconducting quantum Hall setup, provided that the quantum Hall system is tuned to integer filling factor. We present microscopic calculations for a three-terminal setup to illustrate our idea.
description: Paper (8 pages, 4 figures) + SM (1 page) + Erratum (2 pages, 3 figures)
The educational experiences of Lao Americans impacted by deportation
Creators: name: Bourommavong, Monica A.
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Lao American
Southeast Asian American
Education
Incarceration
Deportation
Immigration
Critical race studies
Critical refugee studies
Refugees
Immigrants
Laos

description: In February 2020, Southeast Asian community organizations learned that the Government of Laos and the US State Department and the Department of Homeland Security made a verbal agreement to accept Lao deportees from the US (Southeast Asian American and Asian American Organizations Across the Country Denounce Trump Administration's Move to Increase Deportations to Laos 2020). Lao Americans with orders of removal had been waiting in limbo, because Laos previously did not accept deportees from the US. This development brought more urgency to Lao American deportation, and rallied organizing, advocacy, and research efforts. Unique to the experience of Lao American deportation is the fact that many are facing deportation today because of crimes that they committed in their adolescent to young adult years. As much of adolescence in the US is spent in school, it is important to examine the possible connections between the experiences of schooling and deportation of Lao Americans impacted by deportation. Through semi-structured interviews, three Lao Americans impacted by deportation shared their experiences of migration, K-12 education, incarceration, and facing deportation. This study will examine their experiences through the lenses of critical race theory in education, critical refugee studies, and Southeast Asian critical theory. Their stories present counternarratives (Solórzano & Yosso, 2006) that resist dominant narratives that simultaneously designate Lao Americans the model and deviant minority (Ngo, 2006; Chung, n.d.), and share alternative narratives of resistance, success, and hope. These counternarratives diversify the current understandings of Asian American identities, lived experiences, and education. This study will broaden the understanding of Lao American, Southeast Asian American, immigrant and refugee education, and presents implications for school educators, youth and immigration advocates, and immigration and education policymakers.
Resolved Spectroscopy of a Brown Dwarf Binary at the T Dwarf/Y Dwarf Transition
Creators: name: Burgasser, Adam J.
name: Gelino, Christopher R.
name: Cushing, Michael. C.
name: Kirkpatrick, J. Davy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report resolved near-infrared imaging and spectroscopic observations of the T8.5 binary WISEP J045853.90+643452.6AB obtained with Keck/NIRC2, Keck/OSIRIS and the Keck Laser Guide Star Adaptive Optics system. These data confirm common proper and radial motion for the two components, and we see the first indications of orbital motion (mostly radial) for this system. H-band spectroscopy identifies both components as very late-type brown dwarfs with strong H2O and CH4 absorption. The spectrum of WISE J0458+6434B also exhibits a compelling signature of NH3 absorption over 1.52-1.54 micron when compared to the T9 dwarf UGPS J072227.51-054031.2. Comparison to T8-Y0 spectral standards and H-band spectral indices indicate classifications of T8.5 and T9.5 for these two components, approaching the boundary between the T dwarf and Y dwarf spectral classes.
description: Accepted for publication to ApJ (10 pages, 7 figures)
How Newly Graduated Social Workers Educated in a Critical Tradition Experience Their Practice
Creators: name: Gallop, Cynthia
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Social Work
subject: FOS: Sociology
subject: Critical
subject: Social Work
subject: Practice
subject: New Graduate

description: Individuals embarking on their journey to become professional social workers often state they feel as if they know nothing upon entering their practice. Regardless of the number of years critical social workers have practiced, they are also thought to know nothing. By utilizing a philosophical hermeneutic approach for my research I chose to recognize that new critical social work ideas, theories and practices come from something and somewhere (Moules, 2002). This research approach involved interviewing six social workers who graduated in the last three years from two social work schools in Canada with a declared critical orientation. I asked these budding new professionals to describe what happens when they begin working in organizations that may or may not support a critical ideology and how this impacts their practice. Interpretations of the participant experiences suggest that this nothing is not an empty space. Instead, it is the in-between space where new critical social work graduates might feel abandoned and unsupported, scrambling for time and resources, and anxious to find the right words. This is the space where much of their practice involves the frustration of being dismissed because they are both new and unconventional in their thinking. However, it is also the space in which new critical social work graduates experience the joy of finding a language to express what they already knew before beginning their schooling. It is the space they sometimes create by insinuating themselves and their ideas into their agencies in a delicate curvilinear manner. Finally, this nothing is also where new graduates might find solace both in themselves and the Other. Arguments are made on the need for critical social work practitioners and researchers to provide leadership to human service organizations, educational institutions, and the field in general by researching, supporting, and celebrating those critical practices that do embody the cultural mores and values of our work.
Acque ariostesche
Creators: name: Dalmas, Davide
Publisher: name: Status Quaestionis
Year: 2018

description: After a first part that briefly deals with other types of water and other works by Ariosto, the essay focuses mainly on the role of the sea in the Orlando furioso. The intent is not only to show how the sea, especially in its storm-like dimension, is a very rich presence in the poem, a repeated opportunity to exhibit descriptive skills and intertextual complexity, but above all to recognize it as a narrative element of fundamental importance in the construction of the structure and the meaning of the entire work.
description: Status Quaestionis, No 14 (2018): L’acqua in letteratura e nelle arti: storie, simboli, immagini
Due storie d’acqua in Shakespeare: Ofelia e Narciso tra Pitagora e Ovidio
Creators: name: Lombardi, Chiara
Publisher: name: Status Quaestionis
Year: 2018

description: The essay aims at analyzing two stories of water in Shakespeare: the tragic death of Ophelia in Hamlet, and the myth of Narcissus implicitly evoked in the Sonnets. Both may be read not only according to the Ovidian representation of the passions, as has already been significantly shown (for example by Bate 1991, and Enterline 2006 and 2012), but also in light of a relationship with the Pythagorical philosophy underlying the same conceptual frame of the Ovidian Metamorphosis. I would like to show that, behind the Pythagorical symbology of water, whose movement is conceived at the same time as a conclusive act, and as a flow always renewing itself in a world of fluid images, we may find a different perspective on Shakespearian aesthetics and the late Renaissance view of humankind and art.
description: Status Quaestionis, No 14 (2018): L’acqua in letteratura e nelle arti: storie, simboli, immagini
Causal Fermion Systems and Octonions
Creators: name: Finster, Felix
name: Gresnigt, Niels G.
name: Isidro, J. M.
name: Marciano, Antonino
name: Paganini, Claudio F.
name: Singh, Tejinder P.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compare the structures and methods in the theory of causal fermion systems with approaches to fundamental physics based on division algebras, in particular the octonions. We find that octonions and, more generally, tensor products of division algebras come up naturally to describe the symmetries of the vacuum configuration of a causal fermion system. This is achieved by associating the real and imaginary octonion basis elements with the neutrino and charged sectors of the vacuum fermionic projector, respectively. Conversely, causal fermion systems provide octonionic theories with spacetime structures and dynamical equations via the causal action principle. In this way, octonionic theories and causal fermion systems complement each other..
description: 36 pages, LaTeX, 1 figure, minor improvements (published version)