cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
"Crisis Government’s Legitimacy Paradox: Foreseeability and Unobservable Success"
Creators: name: Slate, Daniel D.
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: subject: emergency powers
subject: crisis government
subject: existential risk
subject: foresight
subject: Talmud

description: This paper contributes a rethinking of crisis government, starting from two observations. First, nearly all prior political theorizing about crisis focuses on imminent or already-present threats, rather than more amorphous forecasted risks. Historical theories justify drastic responses only when an actual, present threat exists, and are silent about how to approach the risk of total societal destruction on the basis of uncertain forecasts and longer time scales. Second, prior theories rely on a legitimacy principle based on retrospective, ex post approval of norm violations that stopped an observed threat or a directly experienced emergency. These theories give little guidance about whether crisis governments can operate instead based on foresight and anticipation. If their interventions succeed, such governments would prevent forecasted disasters from occurring, but the actual presence of an emergency—which extant theory requires to legitimate crisis government—would then be unobserved. Such a government’s very success would prevent the actualization of its legitimacy, presenting a paradox for present theory. Drawing on the Talmud's discussion of how to preclude a civilization-scale catastrophe, this paper contributes a new theory of crisis government that answers how we can legitimately act on the basis of foresight to address the anticipated exigencies of existential risks.
Internalising problems in young children with an intellectual disability, phobia origins and risk for parental psychopathology : a preliminary investigation
Creators: name: Ciechomski, Lisa D.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Long-Term X-Ray/UV Variability in ULXs
Creators: name: Khan, Norman
name: Middleton, Matthew. J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The focus of NASA's Swift telescope has been transients and target-of-opportunity observing, resulting in many observations of ultraluminous X-ray sources (ULXs) over the last ~20 years. For the vast majority of these observations, simultaneous data has been obtained using both the X-ray telescope (XRT) and the ultraviolet and optical telescope (UVOT), providing a unique opportunity to study coupled variability between these bands. Using a sample of ~40 ULXs with numerous repeat observations, we extract stacked images to characterise the spatial extent of the UV-Optical emission and extract long-term light curves to search for first-order linear correlations between the UV and X-ray emission. We find that a small subset may show weakly correlated joint variability, while other sources appear to display non-linear relationships between the bands. We discuss these observations in the context of several theoretical models: precession, irradiation of the outer accretion disc and irradiation of the companion star. We conclude that more complicated analysis or higher quality data may be required to accurately constrain the nature of the joint X-ray and UV/optical emission in these sources.
description: 14 pages, 13 Figures
Analytics-assisted triage of psychological workers’ compensation claims
Creators: name: Park, Kyu Hyung
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: Workers’ compensation is a form of insurance for employers providing income replacement, medical benefits and rehabilitation support to eligible workers suffering a work-related injury or illness. The cost of work-related injuries and illnesses is significant in Australia, amounting to 4.1 percent of GDP in terms of total economic cost. Among all injuries, psychological injury is the most expensive form of workers’ compensation claim due to its typically long duration. Despite the importance and cost of work-related psychological injury, the factors associated with prolonged claim duration are still not well understood. Using data provided by the workers’ compensation agency in South Australia, this research identifies factors associated with the duration of workers’ compensation claims for psychological injuries (psychological claims), and develops a practical and informative business model to aid the management of such claims by using modern analytics techniques including classification tree and association rule learning. We find that the factor most associated with duration of psychological claims is occupation, followed by bodily location of the most recent prior claim and age of injured worker. It is found that, among psychological claims, those made by claimants in high socio-economic occupations are at higher risk of prolonged claim duration. We finally develop a triage model that uses these factors to segment claims according to risk of prolonged duration. The model enables the focusing of efforts and resources on high-risk claims, thereby reducing the economic and societal burden of work-related injury.
Hybrid Spatio-Temporal Graph Convolutional Network: Improving Traffic Prediction with Navigation Data
Creators: name: Dai, Rui
name: Xu, Shenkun
name: Gu, Qian
name: Ji, Chenguang
name: Liu, Kaikui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Traffic forecasting has recently attracted increasing interest due to the popularity of online navigation services, ridesharing and smart city projects. Owing to the non-stationary nature of road traffic, forecasting accuracy is fundamentally limited by the lack of contextual information. To address this issue, we propose the Hybrid Spatio-Temporal Graph Convolutional Network (H-STGCN), which is able to "deduce" future travel time by exploiting the data of upcoming traffic volume. Specifically, we propose an algorithm to acquire the upcoming traffic volume from an online navigation engine. Taking advantage of the piecewise-linear flow-density relationship, a novel transformer structure converts the upcoming volume into its equivalent in travel time. We combine this signal with the commonly-utilized travel-time signal, and then apply graph convolution to capture the spatial dependency. Particularly, we construct a compound adjacency matrix which reflects the innate traffic proximity. We conduct extensive experiments on real-world datasets. The results show that H-STGCN remarkably outperforms state-of-the-art methods in various metrics, especially for the prediction of non-recurring congestion.
ULYSSES: Universal LeptogeneSiS Equation Solver
Creators: name: Granelli, Alessandro
name: Moffat, Kristian
name: Perez-Gonzalez, Yuber
name: Schulz, Holger
name: Turner, Jessica
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: ULYSSES is a python package that calculates the baryon asymmetry produced from leptogenesis in the context of a type-I seesaw mechanism. The code solves the semi-classical Boltzmann equations for points in the model parameter space as specified by the user. We provide a selection of predefined Boltzmann equations as well as a plugin mechanism for externally provided models of leptogenesis. Furthermore, the ULYSSES code provides tools for multi-dimensional parameter space exploration. The emphasis of the code is on user flexibility and rapid evaluation. It is publicly available at https://github.com/earlyuniverse/ulysses
description: 20 pages, 2 figures, 4 tables
Nucleon structure functions and longitudinal spin asymmetries in the chiral quark constituent model
Creators: name: Dahiya, Harleen
name: Randhawa, Monika
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have analysed the phenomenological dependence of the spin independent ($F_1^{p,n}$ and $F_2^{p,n}$) and the spin dependent ($g_1^{p,n}$) structure functions of the nucleon on the the Bjorken scaling variable $x$ using the unpolarized distribution functions of the quarks $q(x)$ and the polarized distribution functions of the quarks $Δq(x)$ respectively. The chiral constituent quark model ($χ$CQM), which is known to provide a satisfactory explanation of the proton spin crisis and related issues in the nonperturbative regime, has been used to compute explicitly the valence and sea quark flavor distribution functions of $p$ and $n$. In light of the improved precision of the world data, the $p$ and $n$ longitudinal spin asymmetries ($A_1^p(x)$ and $A_1^n(x)$) have been calculated. The implication of the presence of the sea quarks has been discussed for ratio of polarized to unpolarized quark distribution functions for up and down quarks in the $p$ and $n$ $\frac{Δu^p(x)}{u^p(x)}$, $\frac{Δd^p(x)}{d^p(x)}$, $\frac{Δu^n(x)}{u^n(x)}$, and $\frac{Δd^n(x)}{d^n(x)}$. The ratio of the $n$ and $p$ structure functions $R^{np}(x)=\frac{F_2^n(x)}{F_2^p(x)}$ has also been presented. The results have been compared with the recent available experimental observations. The results on the spin sum rule have also been included and compared with data and other recent approaches.
description: 28 pages, 8 figures. To appear in PRD. arXiv admin note: text overlap with arXiv:1505.03304
Ukrainian Arts and Humanities research in Scopus: A Bibliometric Analysis
Creators: name: Nazarovets, Serhii
name: Mryglod, Olesya
Publisher: name: arXiv
Year: 2023
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: This article presents the results of a quantitative analysis of Ukrainian Arts and Humanities (A&H) research from 2012 to 2021, as observed in Scopus. The overall publication activity and the relative share of A&H publications in relation to Ukraine's total research output, comparing them with other countries. The study analyzes the diversity and total number of sources, as well as the geographic distribution of authors and citing authors, to provide insights into the internationalization level of Ukrainian A&H research. Additionally, the topical spectrum and language usage are considered to complete the overall picture. According to our results, the publication patterns for Ukrainian A&H research exhibit dynamics comparable to those of other countries, with a gradual increase in the total number of papers and sources. However, the citedness is lower than expected, and the share of publications in top-quartile sources is lower for 2020-2021 period compared to the previous years. The impact of internationally collaborative papers, especially those in English, is higher. Nevertheless, over half of all works remain uncited, probably due to the limited readership of the journals selected for publication.
description: Library Hi Tech (2023)
"Scenarios 2075: The Cascading Risks Study"
Creators: name: Undheim, Trond Arne
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: systemic risk
disaster research
existential risk
AI risk
biorisk
scenarios

description: Humanity faces a myriad of existential technology, geopolitical, and ecological risks. When studied separately, one misses the destructive systemic trajectories due to cascading risks. The Cascading Risk Study uses methods of triangulation between board game creation, literature review, scenario planning, quantitative growth indicators projected into 2075, modified Delphi survey, taxonomy development, focus groups and interviews, and case study research to inform the issue. This paper is focused on the five input scenarios created as well as initial findings from an online survey on global systemic risks. The results show that an expert sample (n=145) do not consider 2075 to be a time frame relevant for human extinction, but that they are strongly concerned already about 2225 and beyond. The survey confirms the relevance of the five disruption factors used for scenario building (tech, governance, business, social dynamics, environment), with heightened concern about technology, particularly biotech and AI, and especially the combination of the two. Respondents suggest deep dives in specific application areas of AI, bioengineering, and climate change. Both survey and literature review finds support for taking into consideration a wider array of factors, indicating that even mid-range risks may become systemic.
Multiplicity-free key polynomials
Creators: name: Hodges, Reuven
name: Yong, Alexander
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: The key polynomials, defined by A. Lascoux-M.-P. Schützenberger, are characters for the Demazure modules of type A. We classify multiplicity-free key polynomials. The proof uses two combinatorial models for key polynomials. The first is due to A. Kohnert. The second is by S. Assaf-D. Searles, in terms of quasi-key polynomials. Our argument proves a sufficient condition for a quasi-key polynomial to be multiplicity-free.
description: 20 pages
Reimagining Multidisciplinary Pediatric Care for Children with Feeding and Swallowing Difficulties at Oregon Health & Science University
Creators: name: No Individual Author
Publisher: name: Oregon Health and Science University
Year: 2023
Subjects: subject: Hospitals, Pediatric
subject: Northwestern United States
subject: Pediatric Feeding
subject: Multi-disciplinary care

description: At OHSU, where multidisciplinary care is crucial for pediatric feeding disorders, coordination challenges exist. This project evaluates the needs through stakeholder interviews and recommends improvements based on market analysis, aiming to enhance care coordination for children with feeding difficulties.
Confidence-Aware Active Feedback for Interactive Instance Search
Creators: name: Zhang, Yue
name: Liang, Chao
name: Jiang, Longxiang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Information Retrieval (cs.IR)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Online relevance feedback (RF) is widely utilized in instance search (INS) tasks to further refine imperfect ranking results, but it often has low interaction efficiency. The active learning (AL) technique addresses this problem by selecting valuable feedback candidates. However, mainstream AL methods require an initial labeled set for a cold start and are often computationally complex to solve. Therefore, they cannot fully satisfy the requirements for online RF in interactive INS tasks. To address this issue, we propose a confidence-aware active feedback method (CAAF) that is specifically designed for online RF in interactive INS tasks. Inspired by the explicit difficulty modeling scheme in self-paced learning, CAAF utilizes a pairwise manifold ranking loss to evaluate the ranking confidence of each unlabeled sample. The ranking confidence improves not only the interaction efficiency by indicating valuable feedback candidates but also the ranking quality by modulating the diffusion weights in manifold ranking. In addition, we design two acceleration strategies, an approximate optimization scheme and a top-K search scheme, to reduce the computational complexity of CAAF. Extensive experiments on both image INS tasks and video INS tasks searching for buildings, landscapes, persons, and human behaviors demonstrate the effectiveness of the proposed method. Notably, in the real-world, large-scale video INS task of NIST TRECVID 2021, CAAF uses 25% fewer feedback samples to achieve a performance that is nearly equivalent to the champion solution. Moreover, with the same number of feedback samples, CAAF's mAP is 51.9%, significantly surpassing the champion solution by 5.9%. Code is available at https://github.com/nercms-mmap/caaf.
description: Accepted by IEEE Transactions on Multimedia
Ricci flat Finsler metrics by warped product
Creators: name: Marcal, Patricia
name: Shen, Zhongmin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this work, we consider a class of Finsler metrics using the warped product notion introduced by Chen, S. and Zhao (2018), with another "warping", one that is consistent with static spacetimes. We will give the PDE characterization for the proposed metrics to be Ricci-flat and explicitly construct two non-Riemannian examples.
description: Typo in Equation (14.a) corrected
Principles for designing programming tasks : how task characteristics influence student learning of programming
Creators: name: Carbone, Angela
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Converting Ammonia to Hydrogen Gas using Defective Graphene
Creators: name: Gante, Nicholas
name: Dr Marco Sacchi
Publisher: name: Zenodo
Year: 2020
Subjects: Graphene
Renewable Energy
Hydrogen Gas Production
Hydrogen Source
Ammonia
DFT
CASTEP
Single Vacancy

description: In the last decade, graphene has been researched extensively because of its unique chemical, electronic and physical properties that can be exploited for numerous applications. Graphene has shown promise in energy storage, gas sensors, nano- devices and catalysts. [1] Recent studies have shown that the presence of naturally occurring defects can activate graphene for chemical functionalization. [2] For instance, the presence of a simple single point vacancy defect has been shown to significantly increase chemical reactivity towards H2, NOx, SO2 and NH3. [3,4] Primarily, research has been carried out with the purpose of functionalizing this active site, typically through heteroatom doping of some form. [5] We have investigated the possibility of using the innate reactivity of the single vacancy to promote the dissociation of ammonia (NH3) and achieve graphitic nitrogen doping and hydrogen gas (H2) formation. Nitrogen doped graphene is a highly sought-after material, with applications in supercapacitors and bio-sensing technology. Meanwhile, efficient production and storage of H2 gas is highly desirable for a source of renewable energy. The dissociation pathway for ammonia with single vacancy graphene was studied through a series of calculations using CASTEP, an efficient and scalable plane waves DFT code. All calculations were spin polarised and paired with vdW corrections of the Tkatchenko-Scheffler (TS) type. We have found a potential dissociation pathway which ammonia could undergo at moderate temperatures, in which hydrogen movement was dominated by hydrogen diffusion steps from the defect site. References 1 L. Rodríguez-Pérez, M. Á. Herranz and N. Martín, Chem. Commun., 2013, 49, 3721–3735. 2 S. T. Skowron, I. V. Lebedeva, A. M. Popov and E. Bichoutskaia, , DOI:10.1039/c4cs00499j. 3 S. Dandeliya and S. Anurag, IEEE Sens. J., 2019, 19, 2031–2038. 4 X.-J. Wu, Z.-J. Fei, W.-G. Liu, J. Tan, G.-H. Wang, D.-Q. Xia, K. Deng, X.-K. Chen, D.-T. Xiao, S.-W. Wu and W. Liu, Nucl. Sci. Tech., 2019, 30, 69. 5 B. Wang, L. Tsetseris and S. T. Pantelides, J. Mater. Chem. A, 2013, 1, 14927.
Optical Frequency Comb Fourier Transform Spectroscopy of $^{14}$N$_2$$^{16}$O at 7.8 μm
Creators: name: Hjältén, Adrian
name: Germann, Matthias
name: Krzempek, Karol
name: Hudzikowski, Arkadiusz
name: Głuszek, Aleksander
name: Tomaszewska, Dorota
name: Soboń, Grzegorz
name: Foltynowicz, Aleksandra
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We use a Fourier transform spectrometer based on a compact mid-infrared difference frequency generation comb source to perform broadband high-resolution measurements of nitrous oxide, $^{14}$N$_2$$^{16}$O, and retrieve line center frequencies of the $ν$$_1$ fundamental band and the $ν$$_1$ + $ν$$_2$ - $ν$$_2$ hot band. The spectrum spans 90 cm$^{-1}$ around 1285 cm$^{-1}$ with a sample point spacing of 3 ${\times}$ 10$^{-4}$ cm$^{-1}$ (9 MHz). We report line positions of 72 lines in the $ν$$_1$ fundamental band between P(37) and R(38), and 112 lines in the $ν$$_1$ + $ν$$_2$ - $ν$$_2$ hot band (split into two components with e/f rotationless parity) between P(34) and R(33), with uncertainties in the range of 90-600 kHz. We derive upper state constants of both bands from a fit of the effective ro-vibrational Hamiltonian to the line center positions. For the fundamental band, we observe excellent agreement in the retrieved line positions and upper state constants with those reported in a recent study by AlSaif et al. using a comb-referenced quantum cascade laser [J Quant Spectrosc Radiat Transf, 2018;211:172-178]. We determine the origin of the hot band with precision one order of magnitude better than previous work based on FTIR measurements by Toth [http://mark4sun.jpl.nasa.gov/n2o.html], which is the source of the HITRAN2016 data for these bands.
Suzaku Observations of Spectral Variations of the Ultra Luminous X-ray Source Holmberg IX X-1
Creators: name: Kobayashi, Shogo B.
name: Nakazawa, Kazuhiro
name: Makishima, Kazuo
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences
subject: 85A04

description: Observations of the Ultra Luminous X-ray source (ULX) Holmberg IX X-1 were carried out with Suzaku twice, once on 2012 April 13 and then on 2012 October 24, with exposures of 180 ks and 217 ks, respectively. The source showed a hard power-law shape spectrum with a mild cutoff at $\sim 8$ keV, which is typical of ULXs when they are relatively dim. On both occasions, the 0.6-11 keV spectrum was explained successfully in terms a cool ($\sim 0.2$ keV) multi-color disk blackbody emission model and a thermal Comptonization emission produced by an electron cloud with a relatively low temperature and high optical depth, assuming that a large fraction of the disk-blackbody photons are Comptonized whereas the rest is observed directly. The 0.5-10 keV luminosity was $1.2\times10^{40}$ erg s$^{-1}$ in April, and $\sim 14\%$ higher in October. This brightening was accompanied by spectral softening in $\ge 2$ keV, with little changes in the $\le 2$ keV spectral shape. This behavior can be understood if the accretion disk remains unchanged, while the electron cloud covers a variable fraction of the disk. The absorbing column density was consistent with the galactic line-of sight value, and did not vary by more than $1.6\times 10^{21}$ cm$^{-2}$. Together with the featureless spectra, these properties may not be reconciled easily with the super-critical accretion scenario of this source.
description: 10 pages, 6 figures, accepted for publication in PASJ
Foreign experience and corporate innovation in China
Creators: name: Shu, Ao
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: In this thesis, we examine whether board of directors and senior executives with foreign experience affect a firm's innovation performance, which determines the firm's long term competitiveness, by utilising the data on foreign experience of directors and senior executives of all A-share listed companies in China from 1990 to 2010. We find that directors and senior executives with foreign experience increase innovative efficiency and result in more innovation output. It appears that the effect is more pronounced for senior-level overseas returnees who accumulated their foreign experience from countries with a higher standard of corporate governance, management practice and intellectual property rights protection, relative to their counterparts. Further, overseas returnees with commerce related degrees demonstrate a better performance in a firm's innovation output than overseas returnees with non-commerce related degrees. Our study documents that the foreign background of senior level returnees is able to increase the human capital of the firm that benefits the long-term firm's value adding by boosting the firm's innovation output.
Blowups and longtime developments with near-boundary mass accretions of irregularly-shaped Euler--Poisson dominated molecular clouds in astrophysics
Creators: name: Liu, Chao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Motivated by the astrophysical problems of star formations from molecular clouds,we make the first step on the possible long time behaviors of certain irregularly-shaped molecular clouds. We emphasis the main difficulty of the blowups of the irregular-shaped fluids with vacuum (molecular clouds) comes from the initial irregular configurations of its density (multiple centers of gravity). This inevitably causes far more complicated movements during the evolution than the one with spherical symmetry. The spherical symmetric case has been well studied. However, for the non-spherical symmetric case with the gravity, it is very rare in the references due to a very complicate nonlinear interaction between the gravity and the fluids. This article concludes, under the admissible data (i.e., large scale, irregularly-shaped, expanding and rotational molecular clouds), the developments of the solution (molecular clouds) are either global (the first class) with near-boundary mass accretions (leads to star formations), or blowup at finite time. In addition, certain singularities can be removed from the boundary if the data is strongly admissible. This paper partially answers Makino's conjecture [37] in 1992 on the finite time blowup of any tame solution without symmetries for some data and the model of the molecular clouds and the local wellposedness have been established in the companion article [30].
description: 41 pages, split this long paper into two, and the title changed slightly. Agrees with the published version
Struggling over the curricula and pedagogies for work-related learning
Creators: name: Brown, Mike
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Topological Information Retrieval with Dilation-Invariant Bottleneck Comparative Measures
Creators: name: Cao, Yueqi
name: Vlontzos, Athanasios
name: Schmidtke, Luca
name: Kainz, Bernhard
name: Monod, Anthea
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Algebraic Topology (math.AT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 68P15, 68P20, 55N31

description: Appropriately representing elements in a database so that queries may be accurately matched is a central task in information retrieval; recently, this has been achieved by embedding the graphical structure of the database into a manifold in a hierarchy-preserving manner using a variety of metrics. Persistent homology is a tool commonly used in topological data analysis that is able to rigorously characterize a database in terms of both its hierarchy and connectivity structure. Computing persistent homology on a variety of embedded datasets reveals that some commonly used embeddings fail to preserve the connectivity. We show that those embeddings which successfully retain the database topology coincide in persistent homology by introducing two dilation-invariant comparative measures to capture this effect: in particular, they address the issue of metric distortion on manifolds. We provide an algorithm for their computation that exhibits greatly reduced time complexity over existing methods. We use these measures to perform the first instance of topology-based information retrieval and demonstrate its increased performance over the standard bottleneck distance for persistent homology. We showcase our approach on databases of different data varieties including text, videos, and medical images.
description: 29 pages, 10 figures, 4 tables
From Homological Algebra To Topology via Type B Zigzag Algebra and Heisenberg Algebra
Creators: name: Nge, Kie Seng
Publisher: name: The Australian National University
Year: 2022

description: We construct a faithful categorical action of the type $B$ braid group on the bounded homotopy category of finitely generated projective modules over a finite dimensional algebra which we call the type $B$ zigzag algebra. This categorical action is closely related to the action of the type $B$ braid group on curves on the disc. Thus, our exposition can be seen as a type $B$ analogue of the work of Khovanov-Seidel. Moreover, we relate our topological (respectively categorical) action of the type $B$ Artin braid group to their topological (respectively categorical) action of the type $A$ Artin braid group. Then, we prove Rouquier's conjecture \cite[Conjecture 9.8]{Rouq} on the faithfulness of Type $B$ $2$-braid group on Soergel category following the strategy used by Jensen's master with the diagrammatic tools from Elias-Williamson. In the final part of the thesis, we produce a graded Fock vector in the Laurent ring $\Z[t,t^{-1}]$ for a crossingless matching using Heisenberg algebra. We conjecture that the span of such vectors forms a Temperley-Lieb representation, and hence, a new presentation of Jones polynomial can be obtained.
Set-theoretic solutions of the Yang-Baxter equation associated to weak braces
Creators: name: Catino, Francesco
name: Mazzotta, Marzia
name: Miccoli, Maria Maddalena
name: Stefanelli, Paola
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 16T25, 81R50, 20M18

description: We investigate a new algebraic structure which always gives rise to a set-theoretic solution of the Yang-Baxter equation. Specifically, a weak (left) brace is a non-empty set $S$ endowed with two binary operations $+$ and $\circ$ such that both $(S,+)$ and $(S, \circ)$ are inverse semigroups and they hold \begin{align*} a \circ \left(b+c\right) = a\circ b - a +a\circ c \qquad \text{and} \qquad a\circ a^- = - a + a, \end{align*} for all $a,b,c \in S$, where $-a$ and $a^-$ are the inverses of $a$ with respect to $+$ and $\circ$, respectively. In particular, such structures include that of skew braces and form a subclass of inverse semi-braces. Any solution $r$ associated to an arbitrary weak brace $S$ has a behavior close to bijectivity, namely $r$ is a completely regular element in the full transformation semigroup on $S\times S$. In addition, we provide some methods to construct weak braces.
description: 29 pages. The name of the structure and the title of the paper have changed. Accepted for publication in Semigroup Forum
Learning and teaching in teacher education : a self-study
Creators: name: Brandenburg, Ron T.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Conjugation Properties of Tensor Product and Fusion Coefficients
Creators: name: Coquereaux, Robert
name: Zuber, Jean-Bernard
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 22E46, 17B10, 17B67, 20G42, 81R10, 20C33

description: We review some recent results on properties of tensor product and fusion coefficients under complex conjugation of one of the factors. Some of these results have been proven, some others are conjectures awaiting a proof, one of them involving hitherto unnoticed observations on ordinary representation theory of finite simple groups of Lie type
description: 8 pages, 2 figures
Field effect in stacked van der Waals heterostructures: Stacking sequence matters
Creators: name: Stradi, Daniele
name: Papior, Nick R.
name: Brandbyge, Mads
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Stacked van der Waals (vdW) heterostructures where semi-conducting two-dimensional (2D) materials are contacted by overlayed graphene electrodes enable atomically-thin, flexible electronics. We use first-principles quantum transport simulations of graphene-contacted MoS2 devices to show how the transistor effect critically depends on the stacking configuration relative to the gate electrode. We can trace this behavior to the stacking-dependent response of the contact region to the capacitive electric field induced by the gate. The contact resistance is a central parameter and our observation establish an important design rule for devices based on 2D atomic crystals.
Statistical LOS/NLOS Classification for UWB Channels
Creators: name: Buhari, Mohammed Dahiru
name: Susilo, Tri Bagus
name: Khan, Irfan
name: Sadiq, Bashir Olaniyi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Ultrawideband (UWB) technology has attracted a lot of attention for indoor and outdoor positioning systems due to its high accuracy and robustness in non-line-of-sight (NLOS) environments. However, UWB signals are affected by multipath propagation which causes errors in localization. To overcome this problem, researchers have proposed various techniques for NLOS identification and mitigation. One of the approaches is statistical LOS/NLOS classification, which uses statistical parameters of the received signal to distinguish between LOS and NLOS channels. In this paper, we formulated several techniques which can be used for effectively classifying a Line of Sight (LOS) channel from a Non-Line of Sight (NLOS) channel. Various parameters obtained from Channel Impulse Response (CIR) like Skewness, Kurtosis, Root Mean Squared Delay Spread (RDS), Mean Excess Delay (MED), Energy, Energy Ratio, and Mean of Covariance Matrix are used for channel classification. In addition to this, the Joint Probability Density Functions (PDFs) of various parameters are used to improve the accuracy of UWB LOS/NLOS channel classification. Two different criteria-Likelihood Ratio and Hypothesis Tests are used for the identification of the channel.
Teaching about teaching, learning about teaching : a self-study of my practice as a teacher educator
Creators: name: Berry, Amanda
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field. Winner of the Mollie Holman Doctoral Medal for Excellence
CSI Clustering with Variational Autoencoding
Creators: name: Baur, Michael
name: Würth, Michael
name: Koller, Michael
name: Andrei, Vlad-Costin
name: Utschick, Wolfgang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The model order of a wireless channel plays an important role for a variety of applications in communications engineering, e.g., it represents the number of resolvable incident wavefronts with non-negligible power incident from a transmitter to a receiver. Areas such as direction of arrival estimation leverage the model order to analyze the multipath components of channel state information. In this work, we propose to use a variational autoencoder to group unlabeled channel state information with respect to the model order in the variational autoencoder latent space in an unsupervised manner. We validate our approach with simulated 3GPP channel data. Our results suggest that, in order to learn an appropriate clustering, it is crucial to use a more flexible likelihood model for the variational autoencoder decoder than it is usually the case in standard applications.
Gevrey Stability of Prandtl Expansions for 2D Navier-Stokes
Creators: name: Gerard-Varet, David
name: Maekawa, Yasunori
name: Masmoudi, Nader
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We investigate the stability of boundary layer solutions of the two-dimensional incompressible Navier-Stokes equations. We consider shear flow solutions of Prandtl type : $$ u^ν(t,x,y) \, = \, \big (U^E(t,y) + U^{BL}(t,\frac{y}{\sqrtν})\,, \, 0 \big )\, , \quad 0
On-site Energy Utilization Evaluation of Telecommunication Base Station: A Case Study of Western Uganda
Creators: name: Kwocan, Aceronga
name: Buhari, Mohammed Dahiru
name: Ukagwu, Kelechi
name: Serugunda, Jonathan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Due to the widespread installation of Base Stations, the power consumption of cellular communication is increasing rapidly (BSs). Power consumption rises as traffic does, however, this scenario varies from geolocation to geolocation because sites in rural and urban areas have variable traffic loads. Therefore, in order to address various power consumption issues, it is necessary to analyze these sites and offer valid data that network operators can employ. This study took into account the impact of traffic load on energy consumption both in rural and urban locations in western Uganda because prior models did not adequately account for the impact of traffic load on both rural and urban sites. Regression models are used to examine these effects of traffic load on power consumption. Based on measurements taken for twenty-eight days in a row in six urban and rural areas, linear models have been presented. The findings showed that both rural and urban BTS were well-fitted by the suggested linear models. Depending on the layouts of the sites, it was found that energy consumption varied along with traffic, with the number of transceivers present having an impact on both the traffic load and energy consumption.
Financiamento de Campanha Política da Bancada Evangélica da Câmara Federal: uma abordagem com o uso de Mineração de Dados
Creators: name: Gomes, Josir Cardoso
Publisher: name: Zenodo
Year: 2022
Subjects: Bancada evangélica
Financiamento de campanha eleitoral
Mineração de dados
Clusterização

description: A atual turbulência política no Brasil tem sido fonte de grande inquietação e o rumo da nossa incipiente democracia tem se tornado incerto. Em especial, o crescimento das candidaturas evangélicas ao longo dos últimos 20 anos trouxe pautas conservadoras que podem limitar ou cercear a liberdade de minorias que não compartilham os mesmos valores morais dos diferentes grupos religiosos
 evangélicos. Como um dos principais fatores de sucesso eleitoral é o financiamento das campanhas políticas, estudar como se dá o financiamento de campanha desses candidatos pode trazer à tona um novo conhecimento sobre esse fenômeno. A hipótese central é que novas categorias não triviais emergirão deste processamento e que seja possível categorizar os deputados federais evangélicos a partir do padrão de financiamento dos mesmos. A partir dos dados de financiamento de campanha política e a base de resultados eleitorais do TSE, foram utilizadas técnicas de mineração de dados e segmentação para encontrar padrões de fiinanciamento dentre os deputados federais eleitos em 2018 que se autodenominam evangélicos com o intuito de comparar as classificações das denominações evangélicas com as classificações geradas por máquina, fazendo assim uma análise crítica dos resultados encontrados. A pesquisa concluiu que o padrão de financiamento de deputados evangélicos é distinto dos demais deputados e que foi possível classificá-los em grupos distintos. Sendo o foco da pesquisa empírica a influência dos evangélicos na política brasileira, o desenvolvimento de um arcabouço metodológico que facilite a classificação de agentes políticos em função do tipo de financiamento e do sucesso (ou insucesso) eleitoral, abre novas possibilidades na área da ciência política e também para a CI, que tem entre um dos seus pilares os sistemas de recuperação e organização do conhecimento.
Secretary problem and two almost the same consecutive applicants
Creators: name: Rukavicka, Josef
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 60G40

description: We present a new variant of the secretary problem. Let $A$ be a totally ordered set of $n$ \emph{applicants}. Given $P\subseteq A$ and $x\in A$, let $rr(P,x)=\vert\{z\in P \mid z\leq x\}\vert\mbox{ }$ be the \emph{relative rank of} $x$ \emph{with regard to} $P$, and let $rr_n(x)=rr(A,x)$. Let $x_1,x_2,\dots,x_n\in A$ be a random sequence of distinct applicants. The aim is to select $1
"... and the word was made flesh" - the impact of discourses of embodiment in promoting safe manual handling practice in aged care
Creators: name: Bernoth, Maree
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Spinorial representation of submanifolds in metric Lie groups
Creators: name: Bayard, Pierre
name: Roth, Julien
name: Jiménez, Berenice Zavala
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C27, 53C40

description: In this paper we give a spinorial representation of submanifolds of any dimension and codimension into Lie groups equipped with left invariant metrics. As applications, we get a spinorial proof of the Fundamental Theorem for submanifolds into Lie groups, we recover previously known representations of submanifolds in $\mathbb{R}^n$ and in the 3-dimensional Lie groups $S^3$ and $E(κ,τ),$ and we get a new spinorial representation for surfaces in the 3-dimensional semi-direct products: this achieves the spinorial representations of surfaces in the 3-dimensional homogeneous spaces. We finally indicate how to recover a Weierstrass-type representation for CMC-surfaces in 3-dimensional metric Lie groups recently given by Meeks, Mira, Perez and Ros.
description: 35 pages, no figures
Special Vinberg Cones and the Entropy of BPS Extremal Black Holes
Creators: name: Alekseevsky, Dmitri V.
name: Marrani, Alessio
name: Spiro, Andrea
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider the static, spherically symmetric and asymptotically flat BPS extremal black holes in ungauged N = 2 D = 4 supergravity theories, in which the scalar manifold of the vector multiplets is homogeneous. By a result of Shmakova on the BPS attractor equations, the entropy of this kind of black holes can be expressed only in terms of their electric and magnetic charges, provided that the inverse of a certain quadratic map (uniquely determined by the prepotential of the theory) is given. This inverse was previously known just for the cases in which the scalar manifold of the theory is a homogeneous symmetric space. In this paper we use Vinberg's theory of homogeneous cones to determine an explicit expression for such an inverse, under the assumption that the scalar manifold is homogeneous, but not necessarily symmetric. As immediate consequence, we get a formula for the entropy of BPS black holes that holds in any model of N = 2 supergravity with homogeneous scalar manifold.
description: 38 pages; v4: this version is the same of v3; only these comments are modified to announce that a detailed description of the correction of the computational error of v2 -- now fixed in v3 and in this version v4 - can be found in "Erratum to: Special Vinberg Cones and the Entropy of BPS Extremal Black Holes", published in JHEP 06 (2023) 192
Stable Co-Catalyst-Free Photocatalytic H2 Evolution From Oxidized Titanium Nitride Nanopowders
Creators: name: Zhou, Xuemei
name: Zolnhofer, Eva M.
name: Nguyen, Nhat Truong
name: Liu, Ning
name: Meyer, Karsten
name: Schmuki, Patrik
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In the present work, a simple strategy is used to thermally oxidize TiN nanopowder (ca. 20 nm) to an anatase phase of a TiO2:Ti3+:N compound. In contrast to the rutile phase of such a compound this photocatalyst provides photocatalytic activity for hydrogen evolution under AM1.5 conditions - this without the use of any noble metal co-catalyst. Moreover the photocatalyst is active and stable over extended periods of time (tested for 4 months). Importantly, to achieve successful conversion to the active anatase polymorph, sufficiently small starting particles of TiN are needed. The key factor for catalysis is the stabilization of the co-catalytically active Ti3+ species against oxidation by nitrogen present in the starting material.