cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exactly Solvable Model of Randomly Coupled Twisted Superconducting Bilayers
Creators: name: Yuan, Andrew C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Superconductivity (cond-mat.supr-con)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Motivated by recent experiments on twisted junctions of cuprate superconductors (SC), it was proposed [1] that at zero temperature, a random first order Josephson coupling $J_1(\textbf{r}) \cos ϕ$ generates an "effective" global second order coupling, $J_2\cos(2ϕ)$, with a sign that favors $ϕ= \pm π/2$, i.e., spontaneous breaking of time reversal symmetry (TRS). To obtain a more controlled understanding of the suggested "disorder-induced-order" mechanism, we construct an exactly solvable lattice mean field model and prove that when the disorder-average $\bar{J}_1=0$, the model exhibits a TRS breaking phase for all temperatures below the SC transition, i.e., $T_c = T_{\mathrm{TRSB}}$, regardless of the specific form of disorder. In the presence of nonzero $\bar{J}_1\ne 0$, we show that the two transitions split linearly for small $\bar{J}_1 \ll κ$ (where $κ$ is the in-plane SC stiffness), and that $T_{\mathrm{TRSB}}$ vanishes for $\bar J_1> J_c$ where $ J_c= \overline{J^2_1}/κ$ in the weak disorder limit. [1] A. C. Yuan, Y. Vituri, E. Berg, B. Spivak, and S. A. Kivelson, Inhomogeneity-induced time-reversal symmetry breaking in cuprate twist-junctions, arXiv preprint arXiv:2305.15472 (2023)
description: 21 pages (5 main + 16 appendix), 2 figures
The Independence Of Stellar Mass-Loss Rates On Stellar Activity Based On Solar Observations
Creators: name: Cohen, Ofer
Publisher: name: Zenodo
Year: 2013

description: Stellar mass-loss rates are an important input ingredient for stellar evolution models since they determine stellar evolution parameters such as stellar spin-down and increase in stellar luminosity through the lifetime of a star. Due to the lack of direct observations of stellar winds from Sun-like stars stellar X-ray luminosity and stellar level of activity are commonly used as a proxy for estimating stellar mass-loss rates. However, such an intuitive activity - mass-loss rate relation is not well defined. In this paper, I study the mass-loss rate of the Sun as a function of its activity level. I compare in situ solar wind measurements with the solar activity level represented by the solar X-ray flux. I find no clear dependency of the solar mass flux on solar X-ray flux. Instead, the solar mass-loss rate is scattered around an average value of 2 × 10-14 M⊙ yr-1. This independency of the mass-loss rate on level of activity can be explained by the fact that the activity level is governed by the large modulations in the solar close magnetic flux, while the mass-loss rate is governed by the rather constant open magnetic flux. I derive a simple expression for stellar mass-loss rates as a function of the stellar ambient weak magnetic field, the stellar radius, the stellar escape velocity and the average height of the Alfvén surface. This expression predicts stellar mass-loss rates of 10-15 to 10-12 M⊙ yr-1 for Sun-like stars.
Carbon Dynamics in Extracted Minerotrophic Peatlands: An Analysis of the Effect of Plant Biodiversity
Creators: name: Hassanpour Fard, Golnoush
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Geography
subject: Horticulture
subject: Soil Science
subject: Ecology
subject: FOS: Biological sciences
subject: Biogeochemistry
subject: Hydrology
subject: Physical Geography
subject: Environmental Sciences
subject: Peatlands
subject: Restoration
subject: Biodiversity
subject: Ecosystem restoration
subject: Ecological Restoration
subject: Carbon Dynamics

description: Recent experiments have shown that biodiversity loss can impair natural ecosystem functioning. Extraction of horticultural peat is known to alter the diversity of vegetation and convert peatlands from net sinks to persistent sources of carbon to the atmosphere. Peatland restoration has been shown to re‐establish the natural carbon sink function, however, current restoration techniques could be refined with more knowledge of the role of plant biodiversity. In a controlled field study, I tested the effect of plant biodiversity on carbon sequestration in an extracted peatland in Quebec, Canada. Closed‐chamber method was used to measure the flux of carbon between the peatland and the atmosphere in fourteen treatments planted with different numbers of species. Species richness was not found to have a significant impact on carbon sequestration and no overyielding was detected in polycultures. Species identity was important with Carex aquatilis having a significantly positive impact on carbon sequestration.
Unraveling the formation dynamics of metallic femtosecond laser induced periodic surface structures
Creators: name: Khorashad, L. Khosravi
name: Reicks, A.
name: Erickson, A.
name: Shield, J. E.
name: Alexander, D.
name: Laraoui, A.
name: Gogos, G.
name: Zuhlke, C.
name: Argyropoulos, C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Femtosecond laser surface processing (FLSP) is an emerging fabrication technique to efficiently control the surface morphology of many types of materials including metals. However, the theoretical understanding of the FLSP formation dynamics is not a trivial task, since it involves the interaction of various physical processes (electromagnetic, thermal, fluid dynamics) and remains relatively unexplored. In this work, we tackle this problem and present rigorous theoretical results relevant to low-fluence FLSP that accurately match the outcomes of an experimental campaign focused on the formation dynamics of laser induced periodic surface structures (LIPSS) on stainless steel. More specifically, the topology and maximum depth of LIPSS trenches are theoretically and experimentally investigated as a function of the number of laser pulses. Moreover, precise LIPSS morphology measurements are performed using atomic force microscopy (AFM). The proposed comprehensive simulation study is based on two-temperature model (TTM) non-equilibrium thermal simulations coupled with fluid dynamic computations to capture the melting metal phase occurring during FLSP. Our rigorous simulation results are found to be in excellent agreement with the AFM measurements. The presented theoretical framework to model FLSP under low-fluence femtosecond laser pulses will be beneficial to various emerging applications of LIPSS on metallic surfaces, such as cooling high-powered laser diodes and controlling the thermal emission or absorption of metals.
Quasinormal modes for asymptotic safe black holes
Creators: name: Liu, Dao-Jun
name: Yang, Bin
name: Zhai, Yong-Jia
name: Li, Xin-Zhou
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Under the hypothesis of asymptotic safety of gravity, the static, spherically symmetric black hole solutions in the infrared limit are corrected by non-perturbative effects. Specifically, the metric is modified by the running of gravitational couplings. In this work, we investigate the effects of this correction to the quasinormal modes (QNMs) of a test scalar field propagating in this kind of black hole background analytically and numerically. It is found that although the quasi-period frequencies and the damping of oscillations are respectively enhanced and weakened by the quantum correction term, the stability of the black hole remains.
description: 11 pages, 1 figures, accepted for publication in CQG. arXiv admin note: text overlap with arXiv:1007.1317
Distributed autonomous systems to track mobile nodes in industrial wireless sensor networks
Creators: name: Gholami, Mohammad
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Artificial Intelligence
subject: Engineering--Mechanical
subject: Robotics
subject: Wireless Sensor Networks
subject: localization
subject: Multi-agent systems
subject: Artificial neural networks

description: With an ever-increasing trend in automating industrial processes and systems, and with a need to collect and manage information and sensory data in an economic, secure, reliable, and real-time fashion, wireless sensor networks have arisen as one promising solution. One of the imperative problems in the realm of wireless sensor networks is the problem of wireless sensors localization. Although much research has been conducted in this area, many of the proposed approaches produce unsatisfactory results when exposed to dynamic and noisy conditions of a manufacturing environment. This research, first, presents a robust solution, based on artificial neural networks, to tackle the problem of mobile node tracking in industrial wireless sensor networks. The proposed technique is tested on a simulation model, and the results obtained are validated with a physical small-scale wireless sensor network. A sensitivity analysis follows the simulation and physical model studies to investigate the impact of a set of ambient factors and wireless sensor network parameters on the proposed technique. Much of the studies in the literature of the mobile node tracking merely focus on the accuracy of the localization technique. Nevertheless, to design a successful tracking technique for industrial wireless sensor networks requires one to address many more concerns. In industrial wireless sensor networks, where hundreds to thousands of wireless nodes are deployed, resource management, response time, load distribution, reconfigurability, and adaptability of a tracking system become of paramount importance. Thus, this research presents three tracking systems to position mobile nodes in industrial wireless sensor networks in a soft real-time fashion. Each tracking system employs a unique wireless sensor network topology, namely static clusters, dynamic clusters and ad hoc networks of wireless nodes. Each tracking topology is, in turn, governed by a unique multi-agent system. Subsequently, a comprehensive experimentation based on statistical designs is performed to analyze and compare the performance and efficiency of the proposed tracking systems with respect to a set of formulated metrics. The results obtained illustrate that while ad hoc networks exhibit higher performance, the static and dynamic clusters excel in efficiency related metrics.
AGES: The AGN and Galaxy Evolution Survey
Creators: name: Kochanek, C. S.
name: Eisenstein, D. J.
name: Cool, R. J.
name: Caldwell, N.
name: Assef, R. J.
name: Jannuzi, B. T.
name: Jones, C.
name: Murray, S. S.
name: Forman, W. R.
name: Dey, A.
name: Brown, M. J. I.
name: Eisenhardt, P.
name: Gonzalez, A. H.
name: Green, P.
name: Stern, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The AGN and Galaxy Evolution Survey (AGES) is a redshift survey covering, in its standard fields, 7.7 square degrees of the Bootes field of the NOAO Deep Wide-Field Survey (NDWFS). The final sample consists of 23745 redshifts. There are well-defined galaxy samples in ten bands (the Bw, R, I, J, K, IRAC 3.6, 4.5, 5.8 and 8.0 micron and MIPS 24 micron bands) to a limiting magnitude of I<20 mag for spectroscopy. For these galaxies, we obtained 18163 redshifts from a sample of 35200 galaxies, where random sparse sampling was used to define statistically complete sub-samples in all ten photometric bands. The median galaxy redshift is 0.31, and 90% of the redshifts are in the range 0.085
description: 49 pages, 9 figures, submitted to ApJS. Full data tables available upon acceptance
Binding of anti tumour metal complexes to DNA: Closed dicarboxylates as leaving groups on the aquating arm of platinum II and their effect on the DNA binding and tumour inhibiting properties
Creators: name: Ganesan, Natarajan
Publisher: name: Zenodo
Year: 1997

description: The thesis sheds new light on the reactivity of carboplatin with DNA, challenging previous assumptions that its behavior mirrors that of cisplatin. In contrast to cisplatin’s rapid binding, carboplatin demonstrates a slower interaction, influenced by the resistance of its CBDCA moiety to aquation. However, what’s most intriguing is the emerging possibility that carboplatin may not rely solely on aquation but may be activated under physiological conditions before binding to DNA. This activation theory suggests that carboplatin forms DNA adducts in vivo, indicating a more nuanced mechanism of action that could influence its therapeutic efficacy and side effect profile.

Additionally, this research uncovers the exciting potential of Beta poly L malate as a delivery vehicle for platinum-based drugs. Platinum complexes with this bioresorbable polymer exhibit unique DNA binding patterns and, more importantly, demonstrate tumor-inhibiting properties comparable to cisplatin in MCF-7 cancer cells. This discovery opens the door to developing innovative drug delivery systems, offering a targeted and possibly less toxic alternative to traditional chemotherapy. The polymer-platinum complex could represent the next generation of anti-tumor agents with enhanced specificity and reduced systemic side effects.

Finally, the study introduces a novel method for investigating DNA melting behavior through pH-induced helix-to-coil transitions. This rapid and highly reproducible technique promises to revolutionize how researchers study DNA melting, providing a more accurate and efficient tool for detecting subtle interactions between DNA and therapeutic platinum(II) complexes.

With potential applications in high-throughput screening and drug discovery, this method offers a new frontier for exploring DNA-platinum interactions. These findings collectively hint at the exciting future of platinum-based cancer therapies, combining advanced drug mechanisms with innovative delivery systems and analytical methods.

Results from these studies are published and available in the literature. Following are the Pubmed IDs

1) https://pubmed.ncbi.nlm.nih.gov/8660553/ PMID: 8660553

2) https://pubmed.ncbi.nlm.nih.gov/10535754/ PMID: 10535754

3) https://pubmed.ncbi.nlm.nih.gov/9669562/ PMID: 9669562
Agile Professional Virtual Community Inheritance via Adaptation of Social Protocols
Creators: name: Picard, Willy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computers and Society (cs.CY)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Support for human-to-human interactions over a network is still insufficient, particularly for professional virtual communities (PVC). Among other limitations, adaptation and learning-by-experience capabilities of humans are not taken into account in existing models for collaboration processes in PVC. This paper presents a model for adaptive human collaboration. A key element of this model is the use of negotiation for adaptation of social protocols modelling processes. A second contribution is the proposition of various adaptation propagation strategies as means for continuous management of the PVC inheritance.
description: 15 pages, 3 figures
Optical LC-like resonances in high-index particles
Creators: name: Liu, Xiang-yang
name: Huang, Cheng-ping
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Electric LC resonances, occurring in metallic circuits, govern the motion of free electrons or electric signals. In this paper, optical LC-like resonances in high-index particles (HIPs) or dielectric LC resonances have been studied, which involve bounded electrons and optical fields instead. The resonance effect is dominated by optical analogues of inductance and capacitance, which can be determined according to the electromagnetic energy bounded near the particle. The viewpoint of dielectric optical circuit with equivalent parameters facilitates the understanding of dielectric resonance effect. The result also provides a method for studying the optical properties of the HIPs.
description: 19 pages, 5 figures
Experimental Validation of a Model for Predicting Ethanol/Water Vapor Permeation in Industrial Membrane Separation
Creators: name: Lopez, Jessica
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Engineering
subject: Engineering--Chemical
subject: Ethanol
subject: Membrane

description: Renewable energy is one of the crucial elements for sustainable development. Ethanol makes up about 94% of the biofuels produced in the U.S. The rapidly growing market and the pursuit of net positive energy ethanol production systems puts pressure on the development of optimal production processes. Dehydrating ethanol to fuel grade specifications is a highly energy intensive step. Membrane technology, particularly vapor permeation is designed to improve energy and water efficiency in the dehydration of fuel-grade ethanol. Pilot-scale testing facilities were designed and built to test Whitefox Technologies industrial scale membrane cartridges. Along with operational data collected from larger Whitefox plants, a numerical model was experimentally validated. When incorporating leakage, a phenomena that occurs when feed and retentate by-pass the hollow fibers, the retentate stream concentration and flow were predicted within 1% and ±3% error, respectively. The permeate concentration was predicted to within ±7.6% and the flow rate ±8.1%.
Excited state properties of point defects in semiconductors and insulators investigated with time-dependent density functional theory
Creators: name: Jin, Yu
name: Yu, Victor Wen-zhe
name: Govoni, Marco
name: Xu, Andrew C
name: Galli, Giulia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a formulation of spin-conserving and spin-flip, hybrid time-dependent density functional theory (TDDFT), including the calculation of analytical forces, which allows for efficient calculations of excited state properties of solid-state systems with hundreds to thousands of atoms. We discuss an implementation on both GPU and CPU based architectures, along with several acceleration techniques. We then apply our formulation to the study of several point defects in semiconductors and insulators, specifically the negatively charged nitrogen-vacancy and neutral silicon-vacancy centers in diamond, the neutral divacancy center in 4H silicon carbide, and the neutral oxygen-vacancy center in magnesium oxide. Our results highlight the importance of taking into account structural relaxations in excited states, in order to interpret and predict optical absorption and emission mechanisms in spin-defects.
Recurrent Feature Mining and Keypoint Mixup Padding for Category-Agnostic Pose Estimation
Creators: name: Chen, Junjie
name: Chen, Weilong
name: Zuo, Yifan
name: Fang, Yuming
Publisher: name: arXiv
Year: 2025
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Category-agnostic pose estimation aims to locate keypoints on query images according to a few annotated support images for arbitrary novel classes. Existing methods generally extract support features via heatmap pooling, and obtain interacted features from support and query via cross-attention. Hence, these works neglect to mine fine-grained and structure-aware (FGSA) features from both support and query images, which are crucial for pixel-level keypoint localization. To this end, we propose a novel yet concise framework, which recurrently mines FGSA features from both support and query images. Specifically, we design a FGSA mining module based on deformable attention mechanism. On the one hand, we mine fine-grained features by applying deformable attention head over multi-scale feature maps. On the other hand, we mine structure-aware features by offsetting the reference points of keypoints to their linked keypoints. By means of above module, we recurrently mine FGSA features from support and query images, and thus obtain better support features and query estimations. In addition, we propose to use mixup keypoints to pad various classes to a unified keypoint number, which could provide richer supervision than the zero padding used in existing works. We conduct extensive experiments and in-depth studies on large-scale MP-100 dataset, and outperform SOTA method dramatically (+3.2\%PCK@0.05). Code is avaiable at https://github.com/chenbys/FMMP.
Optical forces and torques in non-uniform beams of light
Creators: name: Ruffner, David B.
name: Grier, David G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The spin angular momentum in an elliptically polarized beam of light plays several noteworthy roles in optical traps. It contributes to the linear momentum density in a non-uniform beam, and thus to the radiation pressure exerted on illuminated objects. It can be converted into orbital angular momentum, and thus can exert torques even on optically isotropic objects. Its curl, moreover, contributes to both forces and torques without spin-to-orbit conversion. We demonstrate these effects experimentally by tracking colloidal spheres diffusing in elliptically polarized optical tweezers. Clusters of spheres circulate deterministically about the beam's axis. A single sphere, by contrast, undergoes stochastic Brownian vortex circulation that maps out the optical force field.
description: 4 pages, 1 figure
Infinite aggregation
Creators: name: Wilkinson, Hayden
Publisher: name: The Australian National University
Year: 2021

description: Suppose you found that the universe around you was infinite - that it extended infinitely far in space or in time and, as a result, contained infinitely many persons. How should this change your moral decision-making? Radically, it seems, according to some some philosophers. By various recent arguments, any moral theory that is 'minimally aggregative' will deliver absurd judgements in practice if the universe is (even remotely likely to be) infinite. This seems like sound justification for abandoning any such theory. My goal in thesis is simple: to demonstrate that we need not abandon minimally aggregative theories, even if we happen to live in an infinite universe. I develop and motivate an extension of such theories, which delivers plausible judgements in a range of realistic cases. I show that this extended theory can overcome key objections - both old and new - and that it succeeds where other proposals do not. With this proposal in hand, we can indeed retain minimally aggregative theories and continue to make moral decisions based on what will promote the good.
The SORT1 Protective Allele is Associated with Attenuated Postprandial Lipaemia in Young Adults
Creators: name: Connors, Kimberly
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Nutrition
subject: Postprandial Lipaemia
subject: Genetics
subject: Atherosclerosis
subject: Young Adults

description: Elevated levels of lipids and lipoproteins have strong genetic determinants, and are key risk factors for cardiovascular disease. Study aims were to determine if young adults, when stratified by genotype at the rs646776 variant of the 1p13 locus, displayed differential postprandial responses to an oral fat tolerance test. Participants received a high fat mixed meal following an overnight fast and a fat-exclusion meal at 8 h postprandially. Blood samples were obtained at t=0, 2, 4, 6, 8 and 24 h for lipoprotein analyses via nuclear magnetic resonance profiling. Carriers of the minor, protective allele (TC/CC) displayed lower concentrations of fasting and postprandial very-low density lipoproteins and chylomicrons, in addition to triglyceride content, compared to major, risk allele homozygotes (TT). We report a novel association between the SORT1 1p13 locus and postprandial lipaemia. These results provide evidence of decreased exposure to atherogenic particles in carriers of the minor SORT1 allele, suggesting relative protection against cardiovascular disease compared to TT homozygotes.
Food for thought: a report on the 1985 archaeological and ethnographic investigations into the 'x-ray' concept in the art and culture of Western Arnhem Land, Australia
Creators: name: Taçon, Paul Stephen Charles
Publisher: name: The Australian National University
Year: 2023
Subjects: Rock paintings
Australia
Arnhem Land (N.T.)
Art, Aboriginal Australian
Social life and customs

description: One of the first anthropologists to formally study some of the tribes of Western Arnhem Land was W. Baldwin Spencer. In 1912 he spent over two months at Oenpelli as a guest of Paddy Cahill. Cahill was a reknowned buffalo shooter and friend of the Aborigines who settled at Oenpelli in 1906 after twenty years of hunting in the area.
Epoxyeicosanoids (EETs) Promote The Cancer Stem Cell State by Preventing Breast Cancer Cells Differentiation
Creators: name: El Kadiri, Zineb
Publisher: name: Graduate Studies
Year: 2014
Subjects: Education--Health
Biology
Biology--Cell

description: Our goal is to examine the role of epoxyeicosatrienoic acids (EETs) – omega-6 poly-unsaturated fatty acid metabolites - in modulating breast cancer cell plasticity manifest in the discrete attractor state transitions between cancerous and differentiated states. We used an in vitro breast cancer cell differentiation system, MDA-MB231 that exhibited two quasi-discrete subpopulations representing a stem-like and a differentiated state. We found that elevated EETs suppressed the vitaminD-induced shift of the MDA-MB231 cells towards the differentiated state. Moreover, subpopulation gene expression profiles of cells exposed to EETs robustly identified stem cell-like and differentiated subpopulations as two discrete clusters, regardless of EETs. Interestingly, EETs promoted “stemness” and metastasis genes, while suppressed differentiation related genes, suggesting that EETs not only blocked the switch between the two attractors but also affected cell-intrinsic attractor properties. Our findings suggest that anti-EETs agents may have therapeutic or preventive utility against breast cancer that could be further explored.
Usefulness of a Tailored ‘Situation Background Assessment Recommendation’ Form for Clinical Handover between Postpartum Settings
Creators: name: MacKay, Jennifer
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Nursing
subject: FOS: Health sciences
subject: Clinical handover
subject: SBAR
subject: acute care
subject: Community
subject: postpartum
subject: psychosocial

description: Clinical handover is imperative to safety and quality of care. ‘Situation-Background-Assessment-Recommendation’ (SBAR) communication has been shown to improve the quality of handover. However, usefulness of tailoring the content of an SBAR form for communication between the postpartum acute care and community setting has not been studied. This descriptive mixed methods study evaluates the content validity of a tailored SBAR form and clinicians’ perception of the usefulness of the form to transfer psychosocial information between the postpartum acute care and community setting. In Phase One, an expert panel was employed to determine content validity. In Phase Two, focus group questionnaires and interview data were gathered from social workers and nurses. Findings from both Phases informed revisions. The SBAR form had excellent content validity. Focus group findings revealed multiple themes related to attitude about the usefulness of the form. Participants described the form as useful for improving the quality of clinical handover.
Cohomology of Kac-Moody groups over a finite field
Creators: name: Aguadé, Jaume
name: Ruiz, Albert
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55R35, 20G44, 81R10

description: We compute the mod $p$ cohomology algebra of a family of infinite discrete Kac-Moody groups of rank two defined over finite fields of characteristic different from $p$.
Characterization of the secretion and anchoring domains of Caulobacter crescentus SapA metalloprotease
Creators: name: Gandham, Lyngrace
Publisher: name: University of British Columbia
Year: 2010

description: The Caulobacter crescentus type I secretion system can be used to display foreign peptides at high density on the bacterium’s surface as part of the S-layer. Certain recombinant proteins, however, are subject to proteolytic cleavage by SapA, a unique S-layer associated metalloprotease. SapA (71 kDa) is an unstable protein that breaks down to a 45-kDa product when over-expressed. It needs to be secreted before it can become an active enzyme that anchors to the cell. A point mutation adjacent to the protease’s active site reduced SapA processing, indicating that SapA is self-processing. The last 10 and 50 amino acids were removed and prevented secretion, indicating SapA was a type I secreted protein. Further, SapA secretion was blocked in an S-layer type I secretion deficient strain. Lack of secretion prevents this protease from becoming an active enzyme evidenced by the type I defective clones, which are not processed at all. The last 100 amino acids of the protease are sufficient for anchoring, as determined by immunofluorescence. Interestingly, SapA could be detected on the cell surface by immunofluorescence only in an S-layer negative, O-antigen deficient strain. This suggests that SapA is localized on the cell membrane, beneath the S-layer and is hidden by smooth LPS. A fusion protein, containing a 242 amino acid protein G peptide attached to the last 238 amino acids of SapA secreted and anchored to the cell surface of C. crescentus. This fusion was detectable an anti-IgG antibody. SapA is the first identified self-processing protease that uses its C-terminus for both type I secretion and anchoring.
New inequalities of Ostrowski type for mappings whose derivatives are s-convex in the second sense via fractional integrals
Creators: name: Set, Erhan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: New identity similar to an identity of [13] for fractional integrals have been defined. Then making use of this identity, some new Ostrowski type inequalities for Riemann-Liouville fractional integral have been developed. Our results have some relationships with the results of Alomari et. al., proved in [13] [published in. Appl. Math. Lett. 23 (2010) 1071-1076] and the analysis used in the proofs is simple.
Proton Acceleration In Coronal Shocks
Creators: name: Kozarev, Kamen
Publisher: name: Zenodo
Year: 2013

description: Solar energetic particles (SEP) are produced in powerful eruptions originating on the Sun. In past decades, there has been considerable debate and even confusion as to what the primary source of SEPs is - flares low in the corona, or coronal mass ejection-driven shock waves higher up. Recent observational and modeling work has suggested that traveling shocks can form as low in the corona as 1.2 solar radii, and that they may accelerate charged particles to hundreds of MeV/nucleon while propagating in the corona. I present current work on characterizing coronal shock wave observations and modeling their acceleration of protons to SEP energies.
Probing the Supersymmetry-Mass Scale With F-term Hybrid Inflation
Creators: name: Lazarides, G.
name: Pallis, C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider F-term hybrid inflation and supersymmetry breaking in the context of a model which largely respects a global U(1) R symmetry. The Kaehler potential parameterizes the Kaehler manifold with an enhanced U(1)x(SU(1,1)/U(1)) symmetry, where the scalar curvature of the second factor is determined by the achievement of a supersymmetry-breaking de Sitter vacuum without ugly tuning. The magnitude of the emergent soft tadpole term for the inflaton can be adjusted in the range (1.2-460) TeV -- increasing with the dimensionality of the representation of the waterfall fields -- so that the inflationary observables are in agreement with the observational requirements. The mass scale of the supersymmetric partners turns out to lie in the region (0.09-253) PeV which is compatible with high-scale supersymmetry and the results of LHC on the Higgs boson mass. The mu parameter can be generated by conveniently applying the Giudice-Masiero mechanism and assures the out-of-equilibrium decay of the R saxion at a low reheat temperature Trh<~163 GeV.
description: Published Version
But, what have we done to uplift them? : the administration of aboriginal affairs policy at the Federal level, 1901-1949
Creators: name: Gleeson, Jennifer
Publisher: name: The Australian National University
Year: 2023
Subjects: Bureaucracy
Australia
Public administration
Aboriginal Australians
Government relations

description: "The Constitution of the Commonwealth ... is not an isolated document. It has been built on traditional foundations. Its roots penetrate deep into the past. It embodies the best achievements of political progress, and realises the latest attainable ideals of liberty.
"The men have learnt at last to dig and burrow like rabbits": Entrenchment, Field Fortifications, and the Learning Process in the British Expeditionary Force, 1914-15
Creators: name: Dykstra, Bodie
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: History--Military
subject: trench
subject: warfare
subject: british
subject: army
subject: first
subject: world
subject: war
subject: entrenchment

description: Academic historians have in the past three decades largely dispelled the notion that British generalship in the First World War was plagued with incompetence and have instead explained the heavy casualties of the conflict as the by-product of commanders learning to overcome the tactical difficulties of static trench warfare. Such analyses have inevitably focused on the British army’s offensive role, since it was in the attack that Britain suffered its heaviest losses. The role of the British Expeditionary Force (BEF) on the defensive in 1914 and early 1915 has consequently gone largely overlooked. Trench warfare contained both offensive and defensive qualities, the latter of which revolved chiefly around the construction and employment of field fortifications. In terms of its theories and ideas about how to use earthworks on the battlefield, the BEF was well prepared for war in 1914. Barring some temporary setbacks, most notably during the First Battle of Ypres, the British army between September 1914 and March 1915 continuously adapted its field fortification techniques and gradually improved its methods of training inexperienced officers in new methods, until the change in its operational-strategic posture from defence to offence resulted in the British gradually falling behind the Germans in terms of both defensive theory and field fortification quality.
Conceptual Level Design of Semi-structured Database System: Graph-semantic Based Approach
Creators: name: Sarkar, Anirban
Publisher: name: arXiv
Year: 2012
Subjects: subject: Software Engineering (cs.SE)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences
subject: D.2.10; D.2.2

description: This paper has proposed a Graph - semantic based conceptual model for semi-structured database system, called GOOSSDM, to conceptualize the different facets of such system in object oriented paradigm. The model defines a set of graph based formal constructs, variety of relationship types with participation constraints and rich set of graphical notations to specify the conceptual level design of semi-structured database system. The proposed design approach facilitates modeling of irregular, heterogeneous, hierarchical and non-hierarchical semi-structured data at the conceptual level. Moreover, the proposed GOOSSDM is capable to model XML document at conceptual level with the facility of document-centric design, ordering and disjunction characteristic. A rule based transformation mechanism of GOOSSDM schema into the equivalent XML Schema Definition (XSD) also has been proposed in this paper. The concepts of the proposed conceptual model have been implemented using Generic Modeling Environment (GME).
description: 10 Pages, 3 Tables, 12 Figures
What Moves Us: Emotional Understanding and Affective Engagement Through Material Practices
Creators: name: Saxton Smith, Jill
Publisher: name: Emily Carr University of Art and Design
Year: 2020
Subjects: subject: Emotion
subject: Psychology
subject: FOS: Psychology
subject: Body and soul in art
subject: Home
subject: Motherhood and the arts

description: Domesticity
description: Affect
description: Body
description: Materialism
description: Motherhood
description: Trauma
description: Childhood
Influence of detector motion on discrimination between photon polarizations
Creators: name: Zhou, Tao
name: Cui, Jingxin
name: Cao, Ye
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the discrimination between photon polarizations when measured by moving detectors. Both unambiguous and minimum-error discriminations are considered, and we analyze the the optimal successful (correct) probability as a function of the apparatus' velocity. The Holevo bound for polarization discrimination is also discussed and explicit calculation shows that the Holevo bound and the optimal successful (correct) probability for unambiguous (minimum-error) discrimination simultaneously increase or decrease.
description: 12 pages, 5 figures, accepted by Quantum Information Processing
Who are you? ethnic identity in Canada
Creators: name: Lovell, Kerri Lee
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Ethnic and Racial Studies
subject: Ethnicity
subject: Identity
subject: Canada
subject: EDS

description: Canada is comprised of a rich tapestry of language, ethnic groups, culture and history. Historically, the Canadian government viewed immigration as a means to an end, in which the incoming labour force would populate the vast landscape and ultimately boost the economy to make to make Canada a viable country. Today, immigration is viewed not only in terms of the obvious economic benefits, but as an addition to our already successful pluralist society. The integration process starts the moment the newcomer steps onto Canadian soil; but to what degree, if ever, an individual will identify as ‘Canadian’ is of great interest to sociological researchers. The 2002 Ethnic Diversity Survey provides a useful dataset for the examination of ethnic identity in Canada, and this thesis explores which variables have an effect on whether or not an individual will report ‘Canadian’ as their ethnic identity.
Modifying the Casimir force between indium tin oxide film and Au sphere
Creators: name: Banishev, A. A.
name: Chang, C. -C.
name: Castillo-Garza, R.
name: Klimchitskaya, G. L.
name: Mostepanenko, V. M.
name: Mohideen, U.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present complete results of the experiment on measuring the Casimir force between an Au-coated sphere and an untreated or, alternatively, UV-treated indium tin oxide film deposited on a quartz substrate. Measurements were performed using an atomic force microscope in a high vacuum chamber. The measurement system was calibrated electrostatically. Special analysis of the systematic deviations is performed, and respective corrections in the calibration parameters are introduced. The corrected parameters are free from anomalies discussed in the literature. The experimental data for the Casimir force from two measurement sets for both untreated and UV-treated samples are presented. The experimental errors are determined at a 95% confidence level. It is demonstrated that the UV treatment of an I TO plate results in a significant decrease in the magnitude of the Casimir force (from 21% to 35% depending on separation). However, ellipsometry measurements of the imaginary parts of dielectric permittivities of the untreated and UV-treated samples did not reveal any significant differences. The experimental data are compared with computations in the framework of the Lifshitz theory. It is found that the data for the untreated sample are in a very good agreement with theoretical results taking into account the free charge carriers in an ITO film. For the UV-treated sample the data exclude the theoretical results obtained with account of free charge carriers. These data are in a very good agreement with computations disregarding the contribution of free carriers. According to the explanation provided, this is caused by the phase transition of the ITO film from metallic to dielectric state caused by the UV treatment. Possible applications of the discovered phenomenon in nanotechnology are discussed.
description: 30 pages, 19 figures, 1 table
Novel insights into the cellular roles of p600
Creators: name: Parsons, Kari
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Neuroscience
subject: p600
subject: UBR4
subject: ZUBR1

description: p600 is a large multifunctional protein with important roles in protein degradation, cell adhesion, migration and survival. In the central nervous system (CNS), p600 impacts neurogenesis, neuronal migration, and neuronal survival through interactions with microtubules and calmodulin. The C-terminus of p600 containing the microtubule-binding domains interacts with Ndel1 in vitro and in cultured cells. In the developing neocortex, Ndel1, together with Lis1 and the motor Dynein, regulates mitotic spindle orientation in apical progenitors in a manner reminiscent of p600. My thesis investigates the significance of the p600/Ndel1 interaction. I demonstrate an in vivo association between Ndel1 and p600 in brain tissue. In mitotic cells, I found that overexpression of a NDEL1-binding p600 fragment alters NDEL1's subcellular distribution as well as NDEL1/LIS1 ratios critical in Dynein localization. Finally, I report p600 expression in apical progenitors. My work provides mechanistic insight into the cellular roles of p600, including the function of p600 in neurogenesis.
"Just Finish Already": How the Grey Area of Sexual Consent Highlights Inequalities Inherent in Heterosexual Pleasure
Creators: name: Russell-Miller, Shannon
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2020
Subjects: Sexual consent
Gender
Sexuality
Heterosexuality
Pleasure
Sex
Expectation states
Grey area

description: This qualitative study examines young adults’ expectations and experiences of consent and pleasure which result in a grey area. Based on focus groups and one-on-one interviews with 18 to 25-year-old women and men, I explore various experiences of consensual sex ranging from clearly consensual and pleasurable, consensual yet mediocre experiences, and those which reflect a grey area of consent. Whereas best and simply mediocre sex are characterized by clear feelings of consent, the grey area involves sex that is felt as less than fully consensual but not quite as sexual assault. I apply theories of expectation states, compulsory heterosexuality, and sexual script theories to the findings of this research to argue that adherence to traditional gender norms of heterosexual behaviour lead to greater social importance given to men’s needs for sexual pleasure. These inequalities and expectations surrounding sexual behaviour lead to feeling constrained in one’s ability to negotiate and interpret feelings of desire and consent, resulting in a grey area.
Structure-property studies of conjugated 1,8-naphthalic anhydrides
Creators: name: Woo, Alva Yuen Yiu
Publisher: name: Graduate Studies
Year: 2014
Subjects: Chemistry--Organic
Chemistry--Physical

description: The work in this thesis focuses on investigating the structure-property relationships of conjugated 1,8-naphthalic anhdyrides. Two series of compounds, substituted at the 3- and 4-position of the naphthalic core were designed and synthesized using a variety of aryl groups with different donor strengths. This allowed detailed analysis on how the aryl groups, as well as the position, affect the electronic and photophysical properties of the system. Both series showed a range of quantum yields, intramolecular charge-transfer properties, good electron-accepting character, and good chemical stability. The properties of the two series were compared to one another. Fluorescence quantum yields were much higher in the 4-series than the 3-series and intramolecular charge transfer seemed to be more efficient in the 3-series. Electrochemical properties were comparable between the two series of compounds. Finally, a proof-of-concept and attempted synthesis towards the cyclic diketophosphanyl products was discussed.
The Cauchy problem for the homogeneous Monge-Ampere equation, III. Lifespan
Creators: name: Rubinstein, Yanir A.
name: Zelditch, Steve
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We prove several results on the lifespan, regularity, and uniqueness of solutions of the Cauchy problem for the homogeneous complex and real Monge-Ampere equations (HCMA/HRMA) under various a priori regularity conditions. We use methods of characteristics in both the real and complex settings to bound the lifespan of solutions with prescribed regularity. In the complex domain, we characterize the C^3 lifespan of the HCMA in terms of analytic continuation of Hamiltonian mechanics and intersection of complex time characteristics. We use a conservation law type argument to prove uniqueness of solutions of the Cauchy problem for the HCMA. We then prove that the Cauchy problem is ill-posed in C^3, in the sense that there exists a dense set of C^3 Cauchy data for which there exists no C^3 solution even for a short time. In the real domain we show that the HRMA is equivalent to a Hamilton--Jacobi equation, and use the equivalence to prove that any differentiable weak solution is smooth, so that the differentiable lifespan equals the convex lifespan determined in our previous articles. We further show that the only obstruction to C^1 solvability is the invertibility of the associated Moser maps. Thus, a smooth solution of the Cauchy problem for HRMA exists for a positive but generally finite time and cannot be continued even as a weak C^1 solution afterwards. Finally, we introduce the notion of a "leafwise subsolution" for the HCMA that generalizes that of a solution, and many of our aforementioned results are proved for this more general object.