cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Simulation of Sensor Spoofing Attacks on Unmanned Aerial Vehicles Using the Gazebo Simulator
Creators: name: Pekaric, Irdin
name: Arnold, David
name: Felderer, Michael
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: Robotics (cs.RO)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Conducting safety simulations in various simulators, such as the Gazebo simulator, became a very popular means of testing vehicles against potential safety risks (i.e. crashes). However, this was not the case with security testing. Performing security testing in a simulator is very difficult because security attacks are performed on a different abstraction level. In addition, the attacks themselves are becoming more sophisticated, which directly contributes to the difficulty of executing them in a simulator. In this paper, we attempt to tackle the aforementioned gap by investigating possible attacks that can be simulated, and then performing their simulations. The presented approach shows that attacks targeting the LiDAR and GPS components of unmanned aerial vehicles can be simulated. This is achieved by exploiting vulnerabilities of the ROS and MAVLink protocol and injecting malicious processes into an application. As a result, messages with arbitrary values can be spoofed to the corresponding topics, which allows attackers to update relevant parameters and cause a potential crash of a vehicle. This was tested in multiple scenarios, thereby proving that it is indeed possible to simulate certain attack types, such as spoofing and jamming.
Understanding the electronic and phonon transport properties of thermoelectric material BiCuSeO: a first-principles study
Creators: name: Fan, D. D.
name: Liu, H. J.
name: Cheng, L.
name: Zhang, J.
name: Jiang, P. H.
name: Wei, J.
name: Liang, J. H.
name: Shi, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using first-principles pseudopotential method and Boltzmann transport theory, we give a comprehensive understanding of the electronic and phonon transport properties of thermoelectric material BiCuSeO. By choosing proper hybrid functional for the exchange-correlation energy, we find that the system is semiconducting with a direct band gap of ~0.8 eV, which is quite different from those obtained previously using standard functionals. Detailed analysis of a three-dimensional energy band structure indicates that there is a valley degeneracy of eight around the valence band maximum, which leads to a sharp density of states and is responsible for a large p-type Seebeck coefficient. Moreover, we find that the density of states effective masses are much larger and results in very low hole mobility of BiCuSeO. On the other hand, we find larger atomic displacement parameters for the Cu atoms, which indicates that the stronger anharmonicity of BiCuSeO may originate from the rattling behavior of Cu instead of previously believed Bi atoms.
Force sensitivity of multilayer graphene optomechanical devices
Creators: name: Weber, Peter
name: Güttinger, Johannes
name: Noury, Adrien
name: Vergara-Cruz, Jorge
name: Bachtold, Adrian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Mechanical resonators based on low-dimensional materials are promising for force and mass sensing experiments. The force sensitivity in these ultra-light resonators is often limited by the imprecision in the measurement of the vibrations, the fluctuations of the mechanical resonant frequency, and the heating induced by the measurement. Here, we strongly couple multilayer graphene resonators to superconducting cavities in order to achieve a displacement sensitivity of $1.3$ fm Hz$^{-1/2}$. This coupling also allows us to damp the resonator to an average phonon occupation of $7.2$. Our best force sensitivity, $390$ zN Hz$^{-1/2}$ with a bandwidth of $200$ Hz, is achieved by balancing measurement imprecision, optomechanical damping, and heating. Our results hold promise for studying the quantum capacitance of graphene, its magnetization, and the electron and nuclear spins of molecules adsorbed on its surface.
Critical behavior of charged black holes in Gauss-Bonnet gravity`s rainbow
Creators: name: Hendi, Seyed Hossein
name: Panahiyan, Shahram
name: Panah, Behzad Eslam
name: Faizal, Mir
name: Momennia, Mehrab
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Following an earlier study regarding Gauss-Bonnet-Maxwell black holes in the presence of gravity's rainbow [S. H. Hendi and M. Faizal, Phys. Rev. D 92, 044027 (2015)], in this paper, we will consider all constants as energy dependent ones. The geometrical and thermodynamical properties of this generalization are studied and the validation of the first law of thermodynamics is examined. Next, through the use of proportionality between cosmological constant and thermodynamical pressure, van der Waals-like behavior of these black holes in extended phase space is investigated. An interesting critical behavior for sets of rainbow functions in this case is reported. Also, the critical behavior of uncharged and charged solutions is analyzed and it is shown that the generalization to a charged case puts an energy dependent restriction on values of different parameters.
description: 13 pages, 8 figures, published version
Psychological and educational implications of childhood epilepsy
Creators: name: Riisik, Dawn M.
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 Reference field.
A Multiply-Imaged z $\sim$ 6.3 Lyman Alpha Emitter candidate behind Abell 2261
Creators: name: Rydberg, Claes-Erik
name: Zitrin, Adi
name: Zackrisson, Erik
name: Melinder, Jens
name: Whalen, Daniel J.
name: Klessen, Ralf S.
name: Gonzalez, Juan
name: Östlin, Göran
name: Carollo, Daniela
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: While the Lyman-$α$ ($\mathrm{Ly}α$) emission line serves as an important tool in the study of galaxies at $z\lesssim 6$, finding Ly$α$ emitters (LAE) at significantly higher redshifts has been more challenging, probably because of the increasing neutrality of the intergalactic medium above $z\sim6$. Galaxies with extremely high rest-frame Ly$α$ equivalent widths, EW(Ly$α$) $\gtrsim 150$ Å, at $z>6$ are good candidates for Ly$α$ follow-up observations, and can stand out in multiband imaging surveys because of their unusual colors. We have conducted a photometric search for such objects in the Cluster Lensing And Supernova survey with Hubble (CLASH), and report here the identification of three likely gravitationally-lensed images of a single LAE candidate at $z\sim6.3$, behind the galaxy cluster Abell 2261($z = 0.225$). In the process, we also measured with Keck/MOSFIRE the first spectroscopic redshift of a multiply-imaged galaxy behind Abell 2261, at $z = 3.337$. This allows us to calibrate the lensing model, which in turn is used to study the properties of the candidate LAE. Population III galaxy spectral energy distribution (SED) model fits to the CLASH broadband photometry of the possible LAE provide a slightly better fit than Population I/II models. The best fitted model suggests intrinsic EW(Ly$α$) $\approx 160$ Å after absorption in the interstellar and intergalactic medium. Future spectroscopic observations will examine this prediction as well as shed more light on the morphology of this object, which indicates it may be a merger of two smaller galaxies.
description: 13 pages, 6 figures
Letter from Alfred Richard Orage to John Gawsworth, February 10, 1933
Creators: name: Orage, A. R. (Alfred Richard), 1873-1934
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Editors
valueUri: http://id.worldcat.org/fast/902475
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Publishers and publishing
valueUri: http://id.worldcat.org/fast/1083463
subject: Poetry
valueUri: http://id.worldcat.org/fast/1423828
subject: Orage, A. R. (Alfred Richard), 1873-1934
valueUri: http://id.worldcat.org/fast/822
subject: Gawsworth, John, 1912-1970
valueUri: http://id.worldcat.org/fast/336

description: Part of a collection of correspondence to poet and anthologist John Gawsworth, from Alfred Richard Orage. Orage was an editor, and writer, best known for his time as an editor of “The New Age” magazine. In this letter, Orage politely declines to publish a poem because the N.E.W. is unable to pay for contributions.
Characterizing HR3549B using SPHERE
Creators: name: Mesa, D.
name: Vigan, A.
name: D'Orazi, V.
name: Ginski, C.
name: Desidera, S.
name: Bonnefoy, M.
name: Gratton, R.
name: Langlois, M.
name: Marzari, F.
name: Messina, S.
name: Antichi, J.
name: Biller, B.
name: Bonavita, M.
name: Cascone, E.
name: Chauvin, G.
name: Claudi, R. U.
name: Curtis, I.
name: Fantinel, D.
name: Feldt, M.
name: Garufi, A.
name: Galicher, R.
name: Henning, Th.
name: Incorvaia, S.
name: Lagrange, A. M.
name: Millward, M.
name: Perrot, C.
name: Salasnich, B.
name: Scuderi, S.
name: Sissa, E.
name: Wahhaj, Z.
name: Zurlo, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Aims. In this work, we characterize the low mass companion of the A0 field star HR3549. Methods. We observed HR3549AB in imaging mode with the the NIR branch (IFS and IRDIS) of SPHERE@VLT, with IFS in YJ mode and IRDIS in the H band. We also acquired a medium resolution spectrum with the IRDIS long slit spectroscopy mode. The data were reduced using the dedicated SPHERE GTO pipeline, purposely designed for this instrument. We employed algorithms such as PCA and TLOCI to reduce the speckle noise. Results. The companion was clearly visible both with IRDIS and IFS.We obtained photometry in four different bands as well as the astrometric position for the companion. Based on our astrometry, we confirm that it is a bound object and put constraints on its orbit. Although several uncertainties are still present, we estimate an age of ~100-150 Myr for this system, yielding a most probable mass for the companion of 40-50MJup and T_eff ~300-2400 K. Comparing with template spectra points to a spectral type between M9 and L0 for the companion, commensurate with its position on the color-magnitude diagram.
description: Accepted by A&A, 13 pages, 10 Figures (Figures 9 and 10 degraded to reduce the dimension)
Letter from Alfred Richard Orage to John Gawsworth, April 23, 1934
Creators: name: Orage, A. R. (Alfred Richard), 1873-1934
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Orage, A. R. (Alfred Richard), 1873-1934
valueUri: http://id.worldcat.org/fast/822
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Editors
valueUri: http://id.worldcat.org/fast/902475
subject: Publishers and publishing
valueUri: http://id.worldcat.org/fast/1083463
subject: Gawsworth, John, 1912-1970
valueUri: http://id.worldcat.org/fast/336
subject: Poetry
valueUri: http://id.worldcat.org/fast/1423828

description: Part of a collection of correspondence to poet and anthologist John Gawsworth, from Alfred Richard Orage. Orage was an editor, and writer, best known for his time as an editor of “The New Age” magazine. In this letter, Orage thanks Gawsworth for contributing some poems.
VULNERLIZER: Cross-analysis Between Vulnerabilities and Software Libraries
Creators: name: Pekaric, Irdin
name: Felderer, Michael
name: Steinmüller, Philipp
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The identification of vulnerabilities is a continuous challenge in software projects. This is due to the evolution of methods that attackers employ as well as the constant updates to the software, which reveal additional issues. As a result, new and innovative approaches for the identification of vulnerable software are needed. In this paper, we present VULNERLIZER, which is a novel framework for cross-analysis between vulnerabilities and software libraries. It uses CVE and software library data together with clustering algorithms to generate links between vulnerabilities and libraries. In addition, the training of the model is conducted in order to reevaluate the generated associations. This is achieved by updating the assigned weights. Finally, the approach is then evaluated by making the predictions using the CVE data from the test set. The results show that the VULNERLIZER has a great potential in being able to predict future vulnerable libraries based on an initial input CVE entry or a software library. The trained model reaches a prediction accuracy of 75% or higher.
Letter from Alfred Richard Orage to John Gawsworth, May 09, 1933
Creators: name: Orage, A. R. (Alfred Richard), 1873-1934
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Orage, A. R. (Alfred Richard), 1873-1934
valueUri: http://id.worldcat.org/fast/822
subject: Poetry
valueUri: http://id.worldcat.org/fast/1423828
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Publishers and publishing
valueUri: http://id.worldcat.org/fast/1083463
subject: Gawsworth, John, 1912-1970
valueUri: http://id.worldcat.org/fast/336
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Editors
valueUri: http://id.worldcat.org/fast/902475

description: Part of a collection of correspondence to poet and anthologist John Gawsworth, from Alfred Richard Orage. Orage was an editor, and writer, best known for his time as an editor of “The New Age” magazine. In this letter, Orage discusses publishing two poems.
Australian administration and education in the territories of Papua and Mandated New Guinea before February 1942
Creators: name: Henshaw, David Ian Bryce
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 Reference field.
Towards Model Co-evolution Across Self-Adaptation Steps for Combined Safety and Security Analysis
Creators: name: Witte, Thomas
name: Groner, Raffaela
name: Raschke, Alexander
name: Tichy, Matthias
name: Pekaric, Irdin
name: Felderer, Michael
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: Formal Languages and Automata Theory (cs.FL)
subject: Robotics (cs.RO)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Self-adaptive systems offer several attack surfaces due to the communication via different channels and the different sensors required to observe the environment. Often, attacks cause safety to be compromised as well, making it necessary to consider these two aspects together. Furthermore, the approaches currently used for safety and security analysis do not sufficiently take into account the intermediate steps of an adaptation. Current work in this area ignores the fact that a self-adaptive system also reveals possible vulnerabilities (even if only temporarily) during the adaptation. To address this issue, we propose a modeling approach that takes into account the different relevant aspects of a system, its adaptation process, as well as safety hazards and security attacks. We present several models that describe different aspects of a self-adaptive system and we outline our idea of how these models can then be combined into an Attack-Fault Tree. This allows modeling aspects of the system on different levels of abstraction and co-evolve the models using transformations according to the adaptation of the system. Finally, analyses can then be performed as usual on the resulting Attack-Fault Tree.
Finite volumes for simulation of large molecules
Creators: name: Heida, Martin
Publisher: name: Weierstrass Institute
Year: 2023
Subjects: subject: Finite volume
subject: Voronoi
subject: convergence analysis
subject: overview
subject: 65N08
subject: 65N12
subject: 65N50
subject: 80M12

description: We study a finite volume scheme for simulating the evolution of large molecules within their reduced state space. The finite volume scheme under consideration is the SQRA scheme developed by Lie, Weber and Fackeldey. We study convergence of a more general family of FV schemes in up to 3 dimensions and provide a convergence result for the SQRA-scheme in arbitrary space dimensions.
A comparative study between EGB gravity and GTR by modelling compact stars
Creators: name: Bhar, Piyali
name: Govender, Megan
name: Sharma, Ranjan
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we utilise the Krori-Barua ansatz to model compact stars within the framework of Einstein- Gauss-Bonnet (EGB) gravity. The thrust of our investigation is to carry out a comparative analysis of the physical properties of our models in EGB and classical general relativity theory.
The significance of technical and further education in the inter-relationship between post-secondary participation, employment and unemployment
Creators: name: Vasudeva, Raj Baldevdas
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 Reference field.
The turbulent life of dust grains in the supernova-driven, multi-phase interstellar medium
Creators: name: Peters, Thomas
name: Zhukovska, Svitlana
name: Naab, Thorsten
name: Girichidis, Philipp
name: Walch, Stefanie
name: Glover, Simon C. O.
name: Klessen, Ralf S.
name: Clark, Paul C.
name: Seifried, Daniel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Dust grains are an important component of the interstellar medium (ISM) of galaxies. We present the first direct measurement of the residence times of interstellar dust in the different ISM phases, and of the transition rates between these phases, in realistic hydrodynamical simulations of the multi-phase ISM. Our simulations include a time-dependent chemical network that follows the abundances of H^+, H, H_2, C^+ and CO and take into account self-shielding by gas and dust using a tree-based radiation transfer method. Supernova explosions are injected either at random locations, at density peaks, or as a mixture of the two. For each simulation, we investigate how matter circulates between the ISM phases and find more sizeable transitions than considered in simple mass exchange schemes in the literature. The derived residence times in the ISM phases are characterised by broad distributions, in particular for the molecular, warm and hot medium. The most realistic simulations with random and mixed driving have median residence times in the molecular, cold, warm and hot phase around 17, 7, 44 and 1 Myr, respectively. The transition rates measured in the random driving run are in good agreement with observations of Ti gas-phase depletion in the warm and cold phases in a simple depletion model, although the depletion in the molecular phase is under-predicted. ISM phase definitions based on chemical abundance rather than temperature cuts are physically more meaningful, but lead to significantly different transition rates and residence times because there is no direct correspondence between the two definitions.
description: submitted to MNRAS, movies https://hera.ph1.uni-koeln.de/~silcc/
Spin Hall magnetoresistance in antiferromagnet/normal metal bilayers
Creators: name: Manchon, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We predict the emergence of spin Hall magnetoresistance in a magnetic bilayer composed of a normal metal adjacent to an antiferromagnet. Based on a recently derived drift-diffusion equation, we show that the resistance of the bilayer depends on the relative angle between the direction transverse to the current flow and the Néel order parameter. Although this effect presents striking similarities with the spin Hall magnetoresistance recently reported in ferromagnetic bilayers, in the present case its physical origin is attributed to the anisotropic spin relaxation of itinerant spins in the antiferromagnet.
description: 5 pages, 3 figures
Children's explanations in science : a study of conceptual change
Creators: name: Tytler, Russell William
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 Reference field.
Wind turbine sound propagation: Comparison of a linearized Euler equations model with parabolic equation methods
Creators: name: Colas, Jules
name: Emmanuelli, Ariane
name: Dragna, Didier
name: Blanc-Benon, Philippe
name: Cotté, Benjamin
name: Stevens, Richard J. M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Noise generated by wind turbines is significantly impacted by its propagation in the atmosphere. Hence, for annoyance issues an accurate prediction of sound propagation is critical to determine noise levels around wind turbines. This study presents a method to predict wind turbine sound propagation based on linearized Euler equations. We compare this approach to the parabolic equation method, which is widely used since it captures the influence of atmospheric refraction, ground reflection, and sound scattering at a low computational cost. Using the linearized Euler equations is more computationally demanding but can reproduce more physical effects as fewer assumptions are made. An additional benefit of the linearized Euler equations is that they provide a time-domain solution. To compare both approaches, we simulate sound propagation in two distinct scenarios. In the first scenario, a wind turbine is situated on flat terrain; in the second, a turbine is situated on a hilltop. The results show that both methods provide similar noise predictions in the two scenarios. We find that while some differences in the propagation results are observed in the second case, the final predictions for a broadband extended source are similar between the two methods.
A cross-cultural study of compliments and compliment responses in Australian English and Vietnamese
Creators: name: Nguyen, Minh Nguyet
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in partial fulfilment of the requirements for the degree of Master of Applied Linguistics to the Graduate School of Education, La Trobe University, Bundoora, Victoria.

This thesis analyses and compares compliment functions, compliment formulas, compliment topics and compliment responses by native Vietnamese speakers and native Australian English speakers based on natural observation. The basic roles of compliments in the two cultures are similar. However, in Vietnamese, compliments are also used to express deference. There is strong evidence of formulaicity in compliments in both Australian English and Vietnamese, but there are also distinctions between the two sets of data due to differences in the two grammar systems. Similar broad topics of compliments: appearance, performance, personality and possessions are found in the corpus. However, the big gaps in frequencies of occurrence across appearance and performance by the two groups of informants suggest different hierarchies of values in the two cultures. More pronounced differences are found in compliment responses. Australian and Vietnamese compliment responses cover a continuum of the responses: Accept, Deflect/Evade, Downgrade and Deny. Approximately equal frequencies are found in the Deflect/Evade strategy. However, Australians accept compliments more often while the Vietnamese tend to employ Downgrade and Deny responses. This may be explained by the strong influence of modesty in Vietnamese society. Both groups make use of non-verbal responses, but the wider range of Vietnamese non-verbal responses and the complexity of their interpretation may be attributed to the ambiguous nature of this Asian communication style. The findings, which indicate similarities and differences in Australian English and Vietnamese compliments may be found useful in the English teaching situation in Vietnam and in the teaching of Vietnamese to Australians. They provide an empirical base for material writing and course design. In addition, they can assist in explaining differences in culture-related issues.
Nonsingular black holes in Palatini extensions of General Relativity
Creators: name: Olmo, Gonzalo J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An introduction to extended theories of gravity formulated in metric-affine (or Palatini) spaces is presented. Focusing on spherically symmetric configurations with electric fields, we will see that in these theories the central singularity present in General Relativity is generically replaced by a wormhole structure. The resulting space-time becomes geodesically complete and, therefore, can be regarded as non-singular. We illustrate these properties considering two different models, namely, a quadratic $f(R)$ theory and a Born-Infeld like gravity theory.
description: 37 pages, 3 figures. Lecture notes published as a chapter in the book "Theoretical Frontiers in Black Holes and Cosmology", Springer Proceedings in Physics, Eds. R. Kallosh and E. Orazi, (2016)
Nonuniform Berry-Esseen bounds for martingales with applications to statistical estimation
Creators: name: Fan, Xiequan
name: Grama, Ion
name: Liu, Quansheng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G42, 60F05, 60F10, 60E15, 62E20, 62J05

description: We establish nonuniform Berry-Esseen bounds for martingales under the conditional Bernstein condition. These bounds imply Cramér type large deviations for moderate $x$'s, and are of exponential decay rate as de la Peña's inequality when $x\rightarrow \infty$. Statistical applications associated with linear regressions and self-normalized large deviations are also provided.
description: 21 pages
Community, attachment, structures and the epidemic, CASE: a study of the importance of gay community in the lives of gay men
Creators: name: Grierson, Jeffrey
Publisher: name: La Trobe
Year: 2023

description: Abstract: Community, Attachment, Structures and the Epidemic maps some of the changes in gay men's experience and conceptualisation of community that have occurred during the AIDS epidemic. Social identity theory has been employed to investigate the social-psychological aspects of gay identity at personal, social and community levels. The study compares three generations of gay men in Melbourne; pre- peri- and post-AIDS. As a starting point, the study employed focus groups to explore basic conceptions of gay community. In the first of two major data collection phases, 32 gay men between the ages of 18 and 40 participated in semistructured interviews of between 45 minutes and one and a half hours. The interviews explored the men's social networks, past and present relationship to the commercial gay scene, feelings about gay organisations businesses, neighbourhoods, entertainment, aesthetics, the way they see other gay people, their thoughts about the impact of AIDS on gay communities and their aspirations for gay communities. The second phase of data collection utilised a questionnaire developed from the analysis of the interviews. The 55 item questionnaire covered demographic information, coming out history, initial experiences of the gay world, friendship networks, feelings about the institutions, people and conceptual elements of gay community, items concerning practices of gay community, the community attachment subscale from the SAPA study and items on HIV/AIDS. The questionnaire was completed by 432 gay men, 207 recruited at the Midsumma carnival, an annual gay and lesbian event in Melbourne and 225 through the mailing list of the Victorian AIDS Council. Analysis of the questionnaire data uncovered a complex constellation of difference in the conceptualisation and experience of gay community between the groups, particularly with regard to the content and boundaries of the category 'gay community'. The research challenges practice based models of gay community attachment and proposes a more dynamic, fluid and multi-dimensional conceptualisation of gay social identity.

Originally part of the Australasian Digital Theses (ADT) database.

Submission note: A thesis submitted in total fulfilment for the requirements for the degree of Doctor of Philosophy [to the Australian Research Centre in Sex, Health and Society], Faculty of Health Sciences, La Trobe University, Bundoora.
The Ly$α$ emission from high-$z$ galaxies hosting strong Damped Ly$α$ systems
Creators: name: Joshi, Ravi
name: Srianand, Raghunathan
name: Noterdaeme, Pasquier
name: Petitjean, Patrick
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the average Ly$α$ emission associated with high-$z$ strong (log $N$(H I) $\ge$ 21) damped Ly$α$ systems (DLAs). We report Ly$α$ luminosities ($L_{\rm Lyα}$) for the full as well as various sub-samples based on $N$(H I), $z$, $(r-i)$ colours of QSOs and rest equivalent width of Si II$λ$1526 line (i.e., $W_{1526}$). For the full sample, we find $L_{\rm Lyα}$$< 10^{41} (3σ)\ \rm erg\ s^{-1}$ with a $2.8σ$ level detection of Ly$α$ emission in the red part of the DLA trough. The $L_{\rm Lyα}$ is found to be higher for systems with higher $W_{1526}$ with its peak, detected at $\geq 3σ$, redshifted by about 300-400 $\rm km\ s^{-1}$ with respect to the systemic absorption redshift, as seen in Lyman Break Galaxies (LBGs) and Ly$α$ emitters. A clear signature of a double-hump Ly$α$ profile is seen when we consider $W_{1526} \ge 0.4$ Å and $(r-i) < 0.05$. Based on the known correlation between metallicity and $W_{1526}$, we interpret our results in terms of star formation rate (SFR) being higher in high metallicity (mass) galaxies with high velocity fields that facilitates easy Ly$α$ escape. The measured Ly$α$ surface brightness requires local ionizing radiation that is 4 to 10 times stronger than the metagalactic UV background at these redshifts. The relationship between the SFR and surface mass density of atomic gas seen in DLAs is similar to that of local dwarf and metal poor galaxies. We show that the low luminosity galaxies will contribute appreciably to the stacked spectrum if the size-luminosity relation seen for H I at low-$z$ is also present at high-$z$. Alternatively, large Ly$α$ halos seen around LBGs could also explain our measurements.
description: 23 Pages, 15 Figures, Accepted for Publication in MNRAS Main Journal
The social and cultural construction of identity of the children of Filipino immigrants in Australia
Creators: name: Torres-D'Mello, Marina Arlene
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 Reference field.
A p-Laplacian supercritical Neumann problem
Creators: name: Colasuonno, Francesca
name: Noris, Benedetta
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: For $p>2$, we consider the quasilinear equation $-Δ_p u+|u|^{p-2}u=g(u)$ in the unit ball $B$ of $\mathbb R^N$, with homogeneous Neumann boundary conditions. The assumptions on $g$ are very mild and allow the nonlinearity to be possibly supercritical in the sense of Sobolev embeddings. We prove the existence of a nonconstant, positive, radially nondecreasing solution via variational methods. In the case $g(u)=|u|^{q-2}u$, we detect the asymptotic behavior of these solutions as $q\to\infty$.
description: 34 pages, 1 figure
Magnetic diffuse scattering in artificial kagome spin ice
Creators: name: Sendetskyi, Oles
name: Anghinolfi, Luca
name: Scagnoli, Valerio
name: Möller, Gunnar
name: Leo, Naëmi
name: Alberca, Aurora
name: Kohlbrecher, Joachim
name: Lüning, Jan
name: Staub, Urs
name: Heyderman, Laura Jane
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The study of magnetic correlations in dipolar-coupled nanomagnet systems with synchrotron x-ray scattering provides a means to uncover emergent phenomena and exotic phases, in particular in systems with thermally active magnetic moments. From the diffuse signal of soft x-ray resonant magnetic scattering, we have measured magnetic correlations in a highly dynamic artificial kagome spin ice with sub-70-nm Permalloy nanomagnets. On comparing experimental scattering patterns with Monte Carlo simulations based on a needle-dipole model, we conclude that kagome ice I phase correlations exist in our experimental system even in the presence of moment fluctuations, which is analogous to bulk spin ice and spin liquid behavior. In addition, we describe the emergence of quasi-pinch-points in the magnetic diffuse scattering in the kagome ice I phase. These quasi-pinch-points bear similarities to the fully developed pinch points with singularities of a magnetic Coulomb phase, and continually evolve into the latter on lowering the temperature. The possibility to measure magnetic diffuse scattering with soft x rays opens the way to study magnetic correlations in a variety of nanomagnetic systems.
description: 8 pages, 5 figures; http://journals.aps.org/prb/abstract/10.1103/PhysRevB.93.224413
The impact of tertiary teachers' understanding of electricity on their teaching
Creators: name: Tabanera, Maria Dolores Tubera
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 Reference field.
IoT Security and Home Automation Management System
Creators: name: Muhammad A. B
name: Danladi K.G.
name: Lawal M. I.
name: Mukhtar I.B.
name: Abdussalam G.
name: Nurudeen S.B.
name: Haruna G.R.
Publisher: name: gjrpublication
Year: 2024

description: The smart home and management system in this study are powered by D.C. batteries. It can operate for two to three days on a fully charged battery before running low. The project title and the maximum temperature are shown on the LCD when the system is powered on. It will also demonstrate to you that the house is empty. The quantity of persons you choose to enter the house is up to you. When the maximum is set to 12, the door won't open again until someone hits the escape button and leaves the house before someone else can enter. There is a fan in the house that is used to cool the temperature of the house if it is hot, and you can choose when you want the fan to turn on automatically by selecting the maximum temperature. If you choose the maximum temperature to be 30 °C, the fan will not operate until that temperature is reached. And if everyone leaves the house, both the fan and light will automatically switch off since no one is inside the house. There is a light in front of the house for security reasons. If it is dark at night, it will automatically turn on. This light is controlled by the second light-dependent resistor outside the house. If the LDR senses the presence of light, the bulb outside the house will switch off during the day, and if it senses the presence of darkness, that is, at night, it will turn on itself for security purposes. The first LDR is inside the house. If any person enters the house, it will turn on the light in the house. The light will not go off until everyone leaves the house. There is a smoke detector sensor to sense the presence of fire in the house; if there is a fire outbreak, the GSM Module and ESP32 that are used in the research will help send a message to the houseowner. These messages will both be sent as SMS and through a smart phone using a Wi-Fi connection. Most of the research done nowadays doesn’t have both an IoT connection and a GSM module. Also, a motion detection sensor is used to detect an intrusion. If an intruder tries to enter the house or approach the house by the time everyone is asleep, it will send an SMS to the houseowner that they are motion-detected.
A Study of Data-driven Methods for Adaptive Forecasting of COVID-19 Cases
Creators: name: Stylianides, Charithea
name: Malialis, Kleanthis
name: Kolios, Panayiotis
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Physics and Society (physics.soc-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Severe acute respiratory disease SARS-CoV-2 has had a found impact on public health systems and healthcare emergency response especially with respect to making decisions on the most effective measures to be taken at any given time. As demonstrated throughout the last three years with COVID-19, the prediction of the number of positive cases can be an effective way to facilitate decision-making. However, the limited availability of data and the highly dynamic and uncertain nature of the virus transmissibility makes this task very challenging. Aiming at investigating these challenges and in order to address this problem, this work studies data-driven (learning, statistical) methods for incrementally training models to adapt to these nonstationary conditions. An extensive empirical study is conducted to examine various characteristics, such as, performance analysis on a per virus wave basis, feature extraction, "lookback" window size, memory size, all for next-, 7-, and 14-day forecasting tasks. We demonstrate that the incremental learning framework can successfully address the aforementioned challenges and perform well during outbreaks, providing accurate predictions.
description: Keywords: incremental learning, data streams, neural networks, time-series forecasting
Drop spreading with random viscosity
Creators: name: Xu, Feng
name: Jensen, Oliver E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We examine theoretically the spreading of a viscous liquid drop over a thin film of uniform thickness, assuming the liquid's viscosity is regulated by the concentration of a solute that is carried passively by the spreading flow. The solute is assumed to be initially heterogeneous, having a spatial distribution with prescribed statistical features. To examine how this variability influences the drop's motion, we investigate spreading in a planar geometry using lubrication theory, combining numerical simulations with asymptotic analysis. We assume diffusion is sufficient to suppress solute concentration gradients across but not along the film. The solute field beneath the bulk of the drop is stretched by the spreading flow, such that the initial solute concentration immediately behind the drop's effective contact lines has a long-lived influence on the spreading rate. Over long periods, solute swept up from the precursor film accumulates in a short region behind the contact line, allowing patches of elevated viscosity within the precursor film to hinder spreading. A low-order model provides explicit predictions of the variances in spreading rate and drop location, which are validated against simulations.
Is the dark matter particle its own antiparticle?
Creators: name: Queiroz, Farinaldo S.
name: Rodejohann, Werner
name: Yaguna, Carlos E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose a test based on direct detection data that allows to determine if the dark matter particle is different from its antiparticle. The test requires the precise measurement of the dark matter spin-independent direct detection cross sections off $\mathrm{three}$ different nuclei, and consists of interpreting such signals in terms of self-conjugate (particle $=$ antiparticle) dark matter to see if such interpretation is consistent. If it is not, the dark matter must be different from its antiparticle. We illustrate this procedure for two sets of target nuclei, $\mathrm{\{Xe, Ar, Si\}}$ and $\mathrm{\{Xe, Ar, Ge\}}$, identifying the regions of the parameter space where it is particularly feasible. Our results indicate that future signals in direct detection experiments, if sufficiently accurate, might be used to establish that the dark matter particle is not its own antiparticle --a major step towards the determination of the fundamental nature of the dark matter.
description: 6 pages, 4 figures
Securing Fixed Neural Network Steganography
Creators: name: Luo, Zicong
name: Li, Sheng
name: Li, Guobiao
name: Qian, Zhenxing
name: Zhang, Xinpeng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Image steganography is the art of concealing secret information in images in a way that is imperceptible to unauthorized parties. Recent advances show that is possible to use a fixed neural network (FNN) for secret embedding and extraction. Such fixed neural network steganography (FNNS) achieves high steganographic performance without training the networks, which could be more useful in real-world applications. However, the existing FNNS schemes are vulnerable in the sense that anyone can extract the secret from the stego-image. To deal with this issue, we propose a key-based FNNS scheme to improve the security of the FNNS, where we generate key-controlled perturbations from the FNN for data embedding. As such, only the receiver who possesses the key is able to correctly extract the secret from the stego-image using the FNN. In order to improve the visual quality and undetectability of the stego-image, we further propose an adaptive perturbation optimization strategy by taking the perturbation cost into account. Experimental results show that our proposed scheme is capable of preventing unauthorized secret extraction from the stego-images. Furthermore, our scheme is able to generate stego-images with higher visual quality than the state-of-the-art FNNS scheme, especially when the FNN is a neural network for ordinary learning tasks.
Hollow carbon sphere/metal oxide nanocomposite anodes for lithium-ion batteries
Creators: name: Wenelska, K.
name: Ottmann, A.
name: Schneider, P.
name: Thauer, E.
name: Klingeler, R.
name: Mijowska, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Hollow carbon spheres (HCS) covered with metal oxide nanoparticles (SnO2 and MnO2, respectively) were successfully synthesized and investigated regarding their potential as anode materials for lithium-ion batteries. Raman spectroscopy shows a high degree of graphitization for the HCS host structure. The mesoporous nature of the nanocomposites is confirmed by Brunauer-Emmett-Teller analysis. For both metal oxides under study, the metal oxide functionalization of HCS yields a significant increase of electrochemical performance. The charge capacity of HCS/SnO2 is 370 mAh/g after 45 cycles (266 mAh/g in HCS/MnO2) which clearly exceeds the value of 188 mAh/g in pristine HCS. Remarkably, the data imply excellent long term cycling stability after 100 cycles in both cases. The results hence show that mesoporous HCS/metal oxide nanocomposites enable exploiting the potential of metal oxide anode materials in Lithium-ion batteries by providing a HCS host structure which is both conductive and stable enough to accommodate big volume change effects.
Sex education in schools : its role in the maintenance of gender stereotypes
Creators: name: Szirom, Tricia
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 Reference field.
Writing fiction from fact: making a video on workplace communication and cultural diversity
Creators: name: Hannon, John Andrew
Publisher: name: La Trobe
Year: 2023

description: Accompanying training package [videorecording and workbook]: In a nutshell : cross-cultural communication at work -- Melbourne : Open Channel, for the Office of Multicultural Affairs, 1995.

(Video) producer, John Hannon, (video) director, Luigi Acquisto -- In a nutshell : cross-cultural communication.

Submission note: A thesis submitted to the Graduate School of Education and School of Arts and Media, Faculty of Humanities and Social Sciences.