cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
AUGURY: A time-series based application for the analysis and forecasting of system and network performance metrics
Creators: name: Gutierrez, Nicolas
name: Wiesinger-Widi, Manuela
Publisher: name: arXiv
Year: 2016
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: This paper presents AUGURY, an application for the analysis of monitoring data from computers, servers or cloud infrastructures. The analysis is based on the extraction of patterns and trends from historical data, using elements of time-series analysis. The purpose of AUGURY is to aid a server administrator by forecasting the behaviour and resource usage of specific applications and in presenting a status report in a concise manner. AUGURY provides tools for identifying network traffic congestion and peak usage times, and for making memory usage projections. The application data processing specialises in two tasks: the parametrisation of the memory usage of individual applications and the extraction of the seasonal component from network traffic data. AUGURY uses a different underlying assumption for each of these two tasks. With respect to the memory usage, a limited number of single-valued parameters are assumed to be sufficient to parameterize any application being hosted on the server. Regarding the network traffic data, long-term patterns, such as hourly or daily exist and are being induced by work-time schedules and automatised administrative jobs. In this paper, the implementation of each of the two tasks is presented, tested using locally-generated data, and applied to data from weather forecasting applications hosted on a web server. This data is used to demonstrate the insight that AUGURY can add to the monitoring of server and cloud infrastructures.
description: 8 pages, 9 figures, submitted to SYNASC2016
COMPETITION ON DRUGS - ABUSIVE CONDUCTS IN THE PHARMACEUTICAL INDUSTRY
Creators: name: PINI, GIAN DIEGO
Publisher: name: Universit� degli Studi di Milano
Year: 2017

description: Questo scritto tratta dell?intersezione tra diritto brevettuale e diritto della concorrenza con specifico riferimento all?ambito farmaceutico. Punto focale sono le strategie adottate dalle imprese farmaceutiche (c.d. originators) per ritardare o bloccare l?ingresso sul mercato dei farmaci generici, con conseguente danno per la salute dei consumatori e per le finanze pubbliche. Le condotte esaminate comprendono la creazione di cluster di brevetti, la lite temeraria, l?imposizione di una nuova versione del farmaco, la denigrazione dei generici, la fornitura di informazioni false o fuorvianti all?ufficio brevettuale e l?imposizione di prezzi eccessivi. Sono infine discussi gli accordi transattivi con i quali i genericisti s'impegnano a non entrare nel mercato a fronte del pagamento di una somma da parte dell?originator. Tutte queste condotte sono accomunate dal fatto che l?impatto anticoncorrenziale dipende in misura rilevante dall?esistenza di uno o pi� brevetti sul farmaco e dall?abuso dei diritti che questi conferiscono al titolare. Teoria e prassi applicativa di autorit� e corti in campo farmaceutico, a livello nazionale, europeo e statunitense, sono analizzate nell'ottica di dimostrare che tali condotte rappresentano non solo un abuso di posizione dominante (qualora l?impresa detenga sufficiente potere di mercato), ma anche un abuso del diritto brevettuale (interpretato teleologicamente). In linea con la recente sentenza del Consiglio di Stato nel caso Pfizer, la medesima condotta potr� quindi porsi in contrasto sia con la disciplina brevettuale sia con quella concorrenziale (in termini di abuso del diritto, e sua species abuso di posizione dominante) quando l?obiettivo perseguito (e potenzialmente realizzabile) dall?impresa farmaceutica sia in contrasto con la ragione per la quale i diritti le sono stati riconosciuti, in questo caso il benessere di lungo periodo dei consumatori. Pur perseguendo un obiettivo comune, gli strumenti messi a disposizione dal diritto della concorrenza e dal diritto brevettuale sono distinti e complementari. Soltanto un?applicazione delle due discipline in piena coerenza l?una con l?altra pu� assicurarne il reciproco rafforzamento e permettere a ciascuna di svolgere il proprio ruolo nel raggiungimento dell'obiettivo comune.
L'ESERCITO ITALIANO E LA CONQUISTA DELLA CATALOGNA (1808-1811).UNO STUDIO DI MILITARY EFFECTIVENESS NELL'EUROPA NAPOLEONICA.
Creators: name: ABBIATI, MICHELE
Publisher: name: Universit� degli Studi di Milano
Year: 2017

description: L?esercito italiano e la conquista della Catalogna (1808-1811) Uno studio di Military Effectiveness nell?Europa napoleonica Settori scientifico-disciplinari SPS/03 ? M-STO/02 La ricerca ha lo scopo di ricostruire e valutare l?effettivit� militare dell?esercito italiano al servizio di Napoleone I. In primo luogo attraverso un?analisi statistica e strategica della costruzione, e del successivo impiego, dell?istituzione militare del Regno d?Italia durante gli anni della sua esistenza (1805-14); successivamente, � stato scelto un caso di studi particolarmente significativo, come la campagna di Catalogna (1808-11, nel contesto della guerra di Indipendenza spagnola), per poter valutare il contributo operazionale e tattico dei corpi inviati dal governo di Milano e la loro integrazione con l?apparato militare complessivo del Primo Impero. La tesi ha voluto rispondere alla mancanza di studi sul comportamento in guerra dell?esercito italiano e, allo stesso tempo, introdurre nella storiografia militare italiana la metodologia di studi, d?origine anglosassone e ormai di tradizione trentennale, di Military Effectiveness. La ricerca si � primariamente basata, oltre che sulla copiosa memorialistica a stampa italiana e francese, sulla documentazione d?archivio della Secr�tairerie d?�tat imp�riale (Archives Nationales di Pierrefitte-sur-Seine, Parigi), del Minist�re de la Guerre francese (Service historique de la D�fence, di Vincennes, Parigi) e del Ministero della Guerra del Regno d?Italia (Archivio di Stato di Milano). Dal punto di vista dei risultati � stato possibile verificare come l?esercito italiano abbia rappresentato, per Bonaparte, uno strumento duttile e di facile impiego, pur in un contesto di sostanziale marginalit� numerica complessiva di fronte alle altre (e cospicue) forze messe in campo da parte dell?Impero e dei suoi altri Stati satellite e alleati. Per quanto riguarda la campagna di conquista della Catalogna � stato invece possibile appurare il fondamentale contributo dato dal contingente italiano, sotto i punti di vista operazionale e tattico, per la buona riuscita dell?invasione; questo primariamente grazie alle elevate caratteristiche generali mostrate dallo stesso, ma anche per peculiarit� disciplinari e organizzative che resero i corpi italiani adatti a operazioni particolarmente aggressive.
MPEC 2024-B163 : 2024 BO3
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 BO3

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
I'LL DO IT TOMORROW: HEALTH STRATEGIES IN UNCERTAIN PERIODS
Creators: name: GIOLA, SERENA
Publisher: name: Universit� degli Studi di Milano
Year: 2019

description: This thesis is presented as a series of three separate but related papers, in agreement with the scientific board of the Network for the Advancement of Social and Political Studies. It is the result of my path of study in Economic Sociology and Labour Studies Doctor of Philosophy Program. Each paper is part of a wider initiative which aims to analyse the effects of an uncertainty situation on health, health behaviours and health care unmet needs and decisions. In addition, also aims to identify on which variables we should intervene to reduce the negative consequences (or amplify the positive consequences) of economic insecurity or job insecurity on the general health status of a population. Given the presence of a general aim, the three papers share a common theoretical framework while adopting different focuses.
On the distance of stabilizer quantum codes from $J$-affine variety codes
Creators: name: Galindo, Carlos
name: Geil, Olav
name: Hernando, Fernando
name: Ruano, Diego
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Self-orthogonal $J$-affine variety codes have been successfully used to obtain quantum stabilizer codes with excellent parameters. In a previous paper we gave formulae for the dimension of this family of quantum codes, but no bound for the minimum distance was given. In this work, we show how to derive quantum stabilizer codes with designed minimum distance from $J$-affine variety codes and their subfield-subcodes. Moreover, this allows us to obtain new quantum codes, some of them either, with better parameters, or with larger distances than the previously known codes.
A spark ignition engine fault diagnosis system
Creators: name: Arslan, Sinasi.
Publisher: name: Monash University
Year: 2022

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.
On the Convergence Time of a Natural Dynamics for Linear Programming
Creators: name: Bonifaci, Vincenzo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: F.1.1; G.1.6; G.1.7
subject: 68Q05, 90C05

description: We consider a system of nonlinear ordinary differential equations for the solution of linear programming (LP) problems that was first proposed in the mathematical biology literature as a model for the foraging behavior of acellular slime mold Physarum polycephalum, and more recently considered as a method to solve LPs. We study the convergence time of the continuous Physarum dynamics in the context of the linear programming problem, and derive a new time bound to approximate optimality that depends on the relative entropy between projected versions of the optimal point and of the initial point. The bound scales logarithmically with the LP cost coefficients and linearly with the inverse of the relative accuracy, establishing the efficiency of the dynamics for arbitrary LP instances with positive costs.
Back to the factory: the continuing salience of industrial workplace history
Creators: name: Akgöz, Görkem
name: Croucher, Richard
name: Pizzolato, Nicola
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: Global labour history
subject: factory history
subject: industrialization
subject: post-industrialization
subject: working-class history
subject: 900 Geschichte und Geografie
subject: 300 Sozialwissenschaften
subject: 330 Wirtschaft

description: Factories remain significant sites of employment, crucial to capitalism. In the twentieth century, scholars registered achievements in documenting their history, but since the late 1980s, and for a generation, the field lost impetus within labour history although insights continued to accumulate through work in adjacent disciplines. The factory has not featured on the agenda of ‘transnational’ and ‘global’ labour history, but we suggest that it can and should contribute to that broader global project, reinvigorating labour history, not least by contributing a dimension close to workers’ everyday experience.
State variable simulation package for IBM-PC
Creators: name: Okyar, Halit.
Publisher: name: Monash University
Year: 2022

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.
HIFLUGCS: X-ray luminosity -- dynamical mass relation and its implications for mass calibrations with the SPIDERS and 4MOST surveys
Creators: name: Zhang, Yu-Ying
name: Reiprich, Thomas H.
name: Schneider, Peter
name: Clerc, Nicolas
name: Merloni, Andrea
name: Schwope, Axel
name: Borm, Katharina
name: Andernach, Heinz
name: Caretta, César A.
name: Wu, Xiang-Ping
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the X-ray luminosity (L) versus dynamical mass (M) relation for 63 nearby clusters in the HIFLUGCS. The luminosity measurements are obtained based on ~1.3 Ms of clean XMM data and ROSAT pointed observations. The masses are estimated using optical spectroscopic redshifts of 13647 cluster galaxies in total. Given sufficient numbers of member galaxies in computing the dynamical masses, the L-M relations agree between the disturbed and undisturbed clusters. The cool-core clusters still dominate the scatter in the L-M relation even when a core corrected X-ray luminosity is used, which indicates that the scatter mainly reflects the structure formation history of the clusters. As shown by the clusters with a small number of redshifts, the dynamical masses can be underestimated leading to a biased scaling relation. To investigate the potential of spectroscopic surveys to follow up high-redshift galaxy clusters/groups observed in X-ray surveys for the identifications and mass calibrations, we carried out Monte-Carlo re-sampling of the cluster galaxy redshifts and calibrated the uncertainties of the redshift and dynamical mass estimates when only reduced numbers of galaxy redshifts per cluster are available. The re-sampling considers the SPIDERS and 4MOST configurations, designed for the follow-up of the eROSITA clusters, and was carried out for each cluster at the actual cluster redshift as well as at z=0.2, 0.4, 0.6, and 0.8. For following up very distant cluster/groups, we carried out the mass calibration based on the re-sampling with only 10zs/cluster, and redshift calibration based on the re-sampling with only 5zs/cluster and 10zs/cluster, respectively. Our results demonstrate the power of combining upcoming X-ray and optical spectroscopic surveys for mass calibration. The scatter in the dynamical mass estimates for the clusters with at least ten members is within 50%.
description: 20 pages, 9 figures, A&A accepted
Weakly Anisotropic Noncentrosymmetric Superconductors with Radial Line Nodes and Thermodynamical Anomalies
Creators: name: Günay, Mehmet
name: Hakioğlu, T.
name: Sömek, Hasan Hüseyin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In noncentrosymmetric superconductors (NCSs), the inversion symmetry (IS) is most commonly broken by an antisymmetric spin-orbit coupling (SOC) removing the spin degeneracy and splitting the Fermi surface (FS) into two branches. A two component condensate is then produced with a doublet pair potential mixing an even singlet and an odd triplet. When the triplet and the singlet strengths are comparable, the pair potential can have rich nodes. The angular line nodes (ALNs) are associated with strong anisotropy and they are widely studied in the literature. When the anisotropy is not strong, they can be replaced by other types of nodes in closed or open forms affecting the low temperature properties. Here, we focus on the weakly anisotropic case and the line nodes in the superconducting plane which become circular in the limit of full isotropy. We study the topology of these radial line nodes (RLNs) and show that it is characterized by the $Z_2$ classification similar to the Quantum-Spin-Hall Insulators. From the thermodynamical perspective, the RLNs cause, even in the topological phases, an exponentially suppressed low temperature behaviour which can be mistaken by nodeless s-wave pairing, thus, providing an explanation to a number of recent experiments with contraversial pairing symmetries. In the rare case when the RLN is on the Fermi surface, the exponential suppression is replaced by a linear temperature dependence. The RLNs are difficult to detect, and for this reason, they may have escaped experimental attention. We demonstrate that Andreev conductance measurements with clean interfaces can efficiently probe the weakly anisotropic samples where the RLNs are expected to be found.
description: 12 pages, 5 figures
Predicting Stellar Rotation Periods Using XGBoost
Creators: name: Gomes, Nuno R. C.
name: Del Sordo, Fabio
name: Torgo, Luís
Publisher: name: Zenodo
Year: 2023
Subjects: machine-learning
xgboost
stars: low-maxx
stars: rotation
data analysis

description: The estimation of rotation periods of stars is a key problem in stellar astrophysics.
 Given the large amount of data available from ground-based and space telescopes, there is nowadays a growing concern to find reliable methods that allow one to quickly and automatically estimate stellar rotation periods accurately and with precision.
 The work we present is aimed at developing a computationally inexpensive approach to automatically predict thousands of stellar rotation periods.
 We focused on building a robust supervised machine learning model to predict surface stellar rotation periods from structured data sets, built from the Kepler catalogue of K and M stars.
 We analysed the set of independent variables extracted from Kepler light curves, investigating the relationships between them and the response.
 With these variables in hand, we trained regression extreme gradient boosting models that contain different numbers of predictors, and assessed their prediction performance, resorting to several metrics.
 We obtained models with quality comparable to the state of the art, and we were able to select a minimal set of variables with which we built extreme gradient boosting models without significant loss of performance.
 We obtained a goodness of fit, as measured by the adjusted coefficient of determination, of about 97%, for a model built with data sets containing stars with rotation periods between 7 and 45 days.
 Based on the results obtained with this study, we conclude that the best models built with the proposed methodology are competitive with the state of the art approaches, having the advantage of being computational cheap, easy to train, and relying on small sets of predictors.
The tennis racket effect in a three-dimensional rigid body
Creators: name: Van Damme, L.
name: Mardesic, P.
name: Sugny, D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We propose a complete theoretical description of the tennis racket effect, which occurs in the free rotation of a three-dimensional rigid body. This effect is characterized by a flip ($π$- rotation) of the head of the racket when a full ($2π$) rotation around the unstable inertia axis is considered. We describe the asymptotics of the phenomenon and conclude about the robustness of this effect with respect to the values of the moments of inertia and the initial conditions of the dynamics. This shows the generality of this geometric property which can be found in a variety of rigid bodies. A simple analytical formula is derived to estimate the twisting effect in the general case. Different examples are discussed.
description: 20 pages, 11 figures, submitted to Physica D (2016)
Ground Motion Models for Northern South America
Creators: name: Arteta, Carlos
name: Pájaro, César
name: Mercado, Vicente
name: Montejo, Julián
name: Arcila, Mónica
name: Abrahamson, Norman
Publisher: name: Zenodo
Year: 2022

description: Repository with the published Ground Motion Models for Northern South America developed by Universidad del Norte and the Colombian Geological Survey (SGC), with the advisoring of professor Norman Abrahamson from UC Berkeley. The GMMs are availabel at the GitHub repository of https://github.com/capajaro/GMMs_Northern-South-America in a form of a Python code and an excel spreadseet.
Convection-driven kinematic dynamos at low Rossby and magnetic Prandtl numbers
Creators: name: Calkins, Michael A.
name: Long, Louie
name: Nieves, David
name: Julien, Keith
name: Tobias, Steven M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Geophysics (physics.geo-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Most large-scale planetary magnetic fields are thought to be driven by low Rossby number convection of a low magnetic Prandtl number fluid. Here kinematic dynamo action is investigated with an asymptotic, rapidly rotating dynamo model for the plane layer geometry that is intrinsically low magnetic Prandtl number. The thermal Prandtl number and Rayleigh number are varied to illustrate fundamental changes in flow regime, ranging from laminar cellular convection to geostrophic turbulence in which an inverse energy cascade is present. A decrease in the efficiency of the convection to generate a dynamo, as determined by an increase in the critical magnetic Reynolds number, is observed as the buoyancy forcing is increased. This decreased efficiency may result from both the loss of correlations associated with the increasingly disordered states of flow that are generated, and boundary layer behavior that enhances magnetic diffusion locally. We find that the spatial characteristics of $α$, and thus the large-scale magnetic field, is dependent only weakly on changes in flow behavior. However, our results are limited to the linear, kinematic dynamo regime, and future simulations including the Lorentz force are therefore necessary to assess the robustness of this result. In contrast to the large-scale magnetic field, the behavior of the small-scale magnetic field is directly dependent on, and therefore shows significant variations with, the small-scale convective flow field.
description: 28 pages, 12 figures
Servodrives of industrial robots
Creators: name: Orr, Stuart.
Publisher: name: Monash University
Year: 2022

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.
Desiree - a Refinement Calculus for Requirements Engineering
Creators: name: Fenglin, Li
name: Mylopoulos John
Publisher: name: Zenodo
Year: 2016

description: This publication includes: - A Ph.D. thesis: **Desiree - a Refinement Calculus for Requirements Engineering**
 - A detailed evaluation of the Desiree framework, including tool, tutorials, case study, questionnaires, and an experiment report. The experiment report (``Desiree.Evaluation.pdf’’) introduces the a set of evaluations we have performed to evaluate the Desiree framework, including: - Assessing the coverage of our requirements ontology by applying it to all the 625 requirements in the PROMISE dataset;
 - Evaluating the expressiveness of our description-based language by using it to rewrite all the 625 requirements in the dataset;
 - Illustrating our methodology by performing a realistic case study;
 - Evaluating the the effectiveness of the entire Desiree framework through three controlled experiments. The materials are structured as follows: ```
 ├── Case.Study.Meeting.Scheduler
 ├── Experiments
 ├── LICENSE.md
 ├── Questionnaire
 ├── README.md
 ├── Report - Desiree.Evaluation.pdf
 ├── Thesis - Desiree.pdf
 └── Tool
 ```
Speckle interferometry of secondary components in nearby visual binaries
Creators: name: Tokovinin, Andrei
name: Horch, Elliott P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Statistical characterization of secondary subsystems in binaries helps to distinguish between various scenarios of multiple-star formation. The DSSI speckle instrument was used at the Gemini-N telescope for several hours in 2015 July to probe binarity of 25 secondary components in nearby solar-type binaries. Six new subsystems were resolved, with meaningful detection limits for the remaining targets. The large incidence of secondary subsystems agrees with other similar studies. The newly resolved subsystem HIP 115417 Ba,Bb causes deviations in the observed motion of the outer binary from which an astrometric orbit of Ba,Bb with a period of 117 years is deduced.
description: Accepted by Astrophysical Journal Supplement Series. 7 pages, 4 figures, 3 tables
Concentration of ground state solution for a fractional Hamiltonian Systems
Creators: name: Ledesma, César E. Torres
name: Zhang, Ziheng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 34C37, 35A15, 35B38

description: In this paper we are concerned with the existence of ground states solutions for the following fractional Hamiltonian systems $$ \left\{ \begin{array}{ll} -_tD^α_\infty(_{-\infty}D^α_t u(t)) - λL(t)u(t)+\nabla W(t,u(t))=0,\\[0.1cm] u \in H^α(\mathbb{R},\mathbb{R}^n), \end{array} \right.\qquad(\hbox{FHS})_λ$$ where $α\in (1/2,1)$, $t\in \mathbb{R}$, $u\in \mathbb{R}^n$, $λ>0$ is a parameter, $L\in C(\mathbb{R},\mathbb{R}^{n^2})$ is a symmetric matrix for all $t\in \mathbb{R}$, $W\in C^1(\mathbb{R} \times \mathbb{R}^n,\mathbb{R})$ and $\nabla W(t,u)$ is the gradient of $W(t,u)$ at $u$. Assuming that $L(t)$ is a positive semi-definite symmetric matrix for all $t\in \mathbb{R}$, that is, $L(t)\equiv 0$ is allowed to occur in some finite interval $T$ of $\mathbb{R}$, $W(t,u)$ satisfies Ambrosetti-Rabinowitz condition and some other reasonable hypotheses, we show that (FHS)$_λ$ has a ground sate solution which vanishes on $\mathbb{R}\setminus T$ as $λ\to \infty$, and converges to $u\in H^α(\mathbb{R}, \mathbb{R}^n)$, where $u\in E_{0}^α$ is a ground state solution of the Dirichlet BVP for fractional systems on the finite interval $T$. Recent results are generalized and significantly improved.
title: Organisational Socialisation: Longitudinal Investigations into Newcomer Sense-Making and Adjustment
Creators: name: Thomas, Helen D C
Publisher: name: Goldsmiths, University of London
Year: 1999

description: This research investigated the organisational socialisation of newcomers, that is, the process by which new employees come to "learn the ropes" of their role and their place within the wider organisational context. The research was longitudinal and focused on a number of issues, of which only the key ones will be mentioned here. First, the development of a measure of the content of newcomer learning during socialisation. Second, a more rigorous assessment of how the socialisation process unfolds over time, and related methodological issues of construct stability during a period of change. Third, an assessment of which factors influence the achievement of positive socialisation outcomes (e.g., organisational commitment). And fourth, newcomers' understanding of insider norms and organisational reality. These issues were investigated in two organisations, the British Army and a multi-national professional services firm. Research was primarily through longitudinal questionnaire studies, over five and three measurement points respectively focusing on the early period of organisational socialisation. A new measure of the content of socialisation learning was developed as part of this thesis, and proved useful in understanding the dynamics of organisational socialisation and predicting outcomes. The longitudinal research designs enabled a greater understanding of the early stages of organisational socialisation which have received little research attention. Further, this allowed a comparison of the organisational socialisation process as it occurs in two disparate organisations. A number of factors were found to influence positive socialisation outcomes, and also newcomer understanding of and adjustment to organisational reality.
A construction of a large family of commuting pairs of integrable symplectic birational 4-dimensional maps
Creators: name: Petrera, Matteo
name: Suris, Yuri B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Algebraic Geometry (math.AG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We give a construction of completely integrable 4-dimensional Hamiltonian systems with cubic Hamilton functions. Applying to the corresponding pairs of commuting quadratic Hamiltonian vector fields the so called Kahan-Hirota-Kimura discretization scheme, we arrive at pairs of birational 4-dimensional maps. We show that these maps are symplectic with respect to a symplectic structure that is a perturbation of the standard symplectic structure on $\mathbb R^4$, and possess two independent integrals of motion, which are perturbations of the original Hamilton functions. Thus, these maps are completely integrable in the Liouville-Arnold sense. Moreover, under a suitable normalization of the original pairs of vector fields, the pairs of maps commute and share the invariant symplectic structure and the two integrals of motion.
description: 17 pp
Ground Motion Models for Northern South America
Creators: name: Arteta, Carlos
name: Pájaro, César
name: Mercado, Vicente
name: Montejo, Julián
name: Arcila, Mónica
name: Abrahamson, Norman
Publisher: name: Zenodo
Year: 2022

description: Repository with the published Ground Motion Models for Northern South America developed by Universidad del Norte and the Colombian Geological Survey (SGC), with the advisoring of professor Norman Abrahamson from UC Berkeley. The GMMs are availabel at the GitHub repository GMMs_Northern-South-America in a form of a Python code and an excel spreadseet.
Kinematic sensitivity to the Fierz term of $β$-decay differential spectra
Creators: name: Gonzalez-Alonso, Martin
name: Naviliat-Cuncic, Oscar
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The current most stringent constraints on exotic scalar or tensor couplings in neutron and nuclear $β$ decay, involving left-handed neutrinos, are obtained from the Fierz interference term. The sensitivity to this term in a correlation coefficient is usually driven by an energy-averaged kinematic factor that increases monotonically toward smaller values of the $β$ endpoint energies. We first point out here that this property does not hold for certain differential observables that are directly sensitive to the Fierz term, such as the $β$ or the recoil energy spectrum. This observation is relevant for the selection of sensitive transitions in searches for exotic couplings through spectrum shape measurements. We then point out previous errors in the exploitation of measurements of the $β-ν$ angular correlation coefficient and discuss their impact on the extraction of constraints on exotic couplings.
description: 7 pages, 5 figures
title: Diagnostic benefit of high b-value computed diffusion-weighted imaging in acute brainstem infarction
Creators: name: Ablefoni, Maxime
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Diagnostic or prognostic study
subject: Retrospective
subject: Ischaemia / Infarction
subject: Artifacts
subject: Diagnostic procedure
subject: MR-Diffusion/Perfusion
subject: MR
subject: Vascular
subject: Neuroradiology brain
subject: Neuro

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Out of all ischemic strokes, approximately 10% are located in the brainstem[1].Most commonly occurring locations are pontine followed by the medulla oblongata and the mesencephalon. The clinical manifestation is related to the site of vessel...
Hierarchical fringe tracker to co-phase and coherence very large optical interferometers
Creators: name: Petrov, Romain G.
name: Boskri, Abdelkarim
name: Bresson, Yves
name: Agabi, Karim
name: Folcher, Jean-Pierre
name: Elhalkouj, Thami
name: Lagarde, Stephane
name: Benkhaldoun, Zouhair
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The full scientific potential of the VLTI with its second generation instruments MATISSE and GRAVITY require fringe tracking up to magnitudes K>14 with the UTs and K>10 with the ATs. The GRAVITY fringe tracker (FT) will be limited to K~10.5 with UTs and K~7.5 with ATs, for fundamental conceptual reasons: the flux of each telescope is distributed among 3 cophasing pairs and then among 5 spectral channels for coherencing. To overcome this limit we propose a new FT concept, called Hierarchical Fringe Tracker (HFT) that cophase pairs of apertures with all the flux from two apertures and only one spectral channel. When the pair is cophased, most of the flux is transmitted as if it was produced by an unique single mode beam and then used to cophase pairs of pairs and then pairs of groups. At the deeper level, the flux is used in an optimized dispersed fringe device for coherencing. On the VLTI such a system allows a gain of about 3 magnitudes over the GRAVITY FT. On interferometers with more apertures such as CHARA (6 telescopes) or a future Planet Formation Imager (12 to 20 telescopes), the HFT would be even more decisive, as its performance does not decrease with the number of apertures. It would allow building a PFI reaching a coherent magnitude H~10 with 16 apertures with diameters smaller than 2 m. We present the HFT concept, the first steps of its feasibility demonstration from computer simulations and the optical design of a 4 telescopes HFT prototype.
description: SPIE Astronomical Telescopes and Instrumentation conference, 10 - 15 June 2018 ;10 pages, 9 figures
The use of cold-formed sections as primary structural members in buildings
Creators: name: Filippone, Frank G. .
Publisher: name: Monash University
Year: 2022

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.
Spectropolarimetric evidence for a siphon flow along an emerging magnetic flux tube
Creators: name: Requerey, Iker S.
name: Cobo, B. Ruiz
name: Iniesta, J. C. Del Toro
name: Suárez, D. Orozco
name: Rodríguez, J. Blanco
name: Solanki, S. K.
name: Barthol, P.
name: Gandorfer, A.
name: Gizon, L.
name: Hirzberger, J.
name: Riethmüller, T. L.
name: van Noort, M.
name: Schmidt, W.
name: Pillet, V. Martínez
name: Knölker, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the dynamics and topology of an emerging magnetic flux concentration using high spatial resolution spectropolarimetric data acquired with the Imaging Magnetograph eXperiment on board the Sunrise balloon-borne solar observatory. We obtain the full vector magnetic field and the line-of-sight (LOS) velocity through inversions of the Fe I line at 525.02 nm with the SPINOR code. The derived vector magnetic field is used to trace magnetic field lines. Two magnetic flux concentrations with different polarity and LOS velocities are found to be connected by a group of arch-shaped magnetic field lines. The positive polarity footpoint is weaker (1100 G) and displays an upflow, while the negative polarity footpoint is stronger (2200 G) and shows a downflow. This configuration is naturally interpreted as a siphon flow along an arched magnetic flux tube.
description: Accepted for publication in ApJS
Temperature dependence of Er3+ ionoluminescence and photoluminescence in Gd2O3:Bi nanopowder
Creators: name: Boruc, Zuzanna
name: Gawlik, Grzegorz
name: Fetliński, Bartosz
name: Kaczkan, Marcin
name: Malinowski, Michał
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ionoluminescence (IL) and photoluminescence (PL) of trivalent erbium ions (Er3+) in Gd2O3 nanopowder host activated with Bi3+ ions has been studied in order to establish the link between changes in luminescent spectra and temperature of the sample material. IL measurements have been performed with H2+ 100 keV ion beam bombarding the target material for a few seconds, while PL spectra have been collected for temperatures ranging from 20 to 700°C. The PL data was used as a reference in determining the temperature corresponding to IL spectra. The collected data enabled the definition of empirical formula based on the Boltzmann distribution, which allows the temperature to be determined with a maximum sensitivity of 9.7 x 10-3 °C-1. The analysis of the Er3+ energy level structure in terms of tendency of the system to stay in thermal equilibrium, explained different behaviors of the lines intensities. This work led to the conclusion that temperature changes during ion excitation can be easily defined with separately collected PL spectra. The final result, which is empirical formula describing dependence of fluorescence intensity ratio on temperature, raises the idea of an application of method in temperature control, during processes like ion implantation and some nuclear applications.
description: 10 pages, 7 figures
Ergonomic system design for an advanced computer numerical control drilling and profile cutting machine
Creators: name: Myer, Martyn K.
Publisher: name: Monash University
Year: 2022

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.
Mechanical stability of particle-stabilized droplets under micropipette aspiration
Creators: name: Samudrala, Niveditha
name: Nam, Jin
name: Sarfati, Raphael
name: Style, Robert W.
name: Dufresne, Eric R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the mechanical behavior of particle-stabilized droplets using micropipette aspiration. We observe that droplets stabilized with amphiphilic dumbbell-shaped particles exhibit a two-stage response to increasing suction pressure. Droplets first drip, then wrinkle and buckle like an elastic shell. While particles have a dramatic impact on the mechanism of failure, the mechanical strength of the droplets is only modestly increased. On the other hand, droplets coated with the molecular surfactant Sodium Dodecyl Sulfate are even weaker than bare droplets. In all cases, the magnitude of the critical pressure for the onset of instabilities is set by the fluid surface tension.
title: The Persistence of Religious Iconography in the Secular Imagery of Filmic Culture - A Study of an Artist's Source Material
Creators: name: Thompsett, Dolly
Publisher: name: Goldsmiths, University of London
Year: 2007

description: This text exists to feed my practice. I intend it to help me to compile and understand effects and devices that I can use to make my paintings of real events epic, seductive and moving. In a sense it constitutes a personal archive. The powerful effects and devices that I examine here come from both cinema and from 'proto-cinematic' European painting. The text is organised to allow me to explore three archetypal atmospheric set pieces from Hollywood movies, and to analyse the way that they are constructed from individual effects and ideas which come originally from the canon of great paintings from European history. The Psychological Interior, The Nightmarish Urban Spectacle and The Infinite Black Void are the subjects of my three chapters. Each set piece triggers an emotional response in the viewer, be it empathy, disorientation, fear or awe. The styling that overlays the motif solicits the emotional response and is made up of specific colour, spatial and light and dark effects. Although these Hollywood set pieces are largely dismissed as being manipulative and populist, I will claim that they are worthy of critical attention, being both visually sophisticated and extremely powerful. These set pieces move us despite our current facility to debunk their seductive and emotionally manipulative appeal. I will show how these enduring set pieces have their origins in 'Old Master' religious paintings where they were part of a persuasive visual language intended to 'sell' religion to an often illiterate audience. In the late twentieth century cinema has claimed them and kept them alive so that a new generation of artists, myself included, are able to reappropriate them via the 'wash-cycle' of popular culture. I have used analytical means drawn from semioticians' study of images to dissect complex images and filmic sequences and to identity the visual elements which convey certain atmospheres. Having isolated these elements, I can begin to analyse them and to sift through art history to find painterly predecessors.
Cophasing the Planet Formation Imager
Creators: name: Petrov, Romain G.
name: Boskri, Abdelkarim
name: Elhalkouj, Thami
name: Monnier, John
name: Ireland, Michael
name: Kraus, Stefan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Planet Formation Imager (PFI) is a project for a very large optical interferometer intended to obtain images of the planet formation process at scales as small as the Hill sphere of giant exoplanets. Its main science instruments will work in the thermal infrared but it will be cophased in the near infrared, where it requires also some capacity for scientific imaging. PFI imaging and resolution specifications imply an array of 12 to 20 apertures and baselines up to a few kilometers cophased at near infrared coherent magnitudes as large as 10. This paper discusses various cophasing architectures and the corresponding minimum diameter of individual apertures, which is the dominant element of PFI cost estimates. From a global analysis of the possible combinations of pairwise fringe sensors, we show that conventional approaches used in current interferometers imply the use of prohibitively large telescopes and we indicate the innovative strategies that would allow building PFI with affordable apertures smaller than 2 m in diameter. The approach with the best potential appears to be Hierarchical Fringe Tracking based on "two beams spatial filters" that cophase pairs of neighboring telescopes with all the efficiency of a two telescopes fringe tracker and transmit most of the flux as if it was produced by an unique single mode aperture to cophase pairs of pairs and then pairs of groups of apertures. We consider also the adaptation to PFI of more conventional approaches such as a combination of GRAVITY like fringe trackers or single or multiple chains of 2T fringe trackers.
description: SPIE Astronomical Telescopes and Instrumentation conference, 10 - 15 June 2018 ;10 pages, 4 figures
Spectral energy distribution of M-subdwarfs: A study of their atmospheric properties
Creators: name: Rajpurohit, A. S.
name: Reyle, C.
name: Allard, F.
name: Homeier, D.
name: Bayo, A.
name: Mousis, O.
name: Rajpurohit, S.
name: Fernandez-Trincado, J. G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. M-type subdwarfs are metal-poor low-mass stars and probe for the old populations in our Galaxy. Accurate knowledge of their atmospheric parameters and especially the composition is essential for understanding the chemical history of our Galaxy. Aims. The purpose of this work is to perform a detailed study of M-subdwarf spectra covering the full wavelength range from the optical to the near-infrared. It allows to do a more detailed analysis of the atmospheric composition in order to determine the stellar parameters, and to constrain the atmospheric models. The study will allow us to further understand physical and chemical processes such as increasing condensation of gas into dust, to point out the missing continuum opacities and see how the main band features are reproduced by the models. The spectral resolution and the large wavelength coverage used is a unique combination to constrain the process that occur in cool atmosphere. Methods. We obtained medium-resolution (R = 5000-7000) spectra over the wavelength range 0.3-2.5 μm of ten M-type subdwarfs with X-SHOOTER at VLT. These data constitute an unique atlas of M-subdwarfs from optical to near-infrared. We performed spectral synthesis analysis using a full grid of synthetic spectra computed from BT-Settl models and obtained consistent stellar parameters such as effective temperature, surface gravity and metallicity. Results. We show that state-of the-art atmospheric models correctly represent the overall shape of their spectral energy distribution, as well as atomic and molecular line profiles both in the optical and near-infrared. We found that the actual fitted gravities of almost all our sample are consistent with old objects, except for LHS 73 where it is found surprisingly low.
description: 11 pages, 8 figures, accepted for publication in A&A
Identification of Bifurcations from Observations of Noisy Biological Oscillators
Creators: name: Salvi, Joshua D.
name: Maoiléidigh, Dáibhid Ó
name: Hudspeth, A. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Cell Behavior (q-bio.CB)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Hair bundles are biological oscillators that actively transduce mechanical stimuli into electrical signals in the auditory, vestibular, and lateral-line systems of vertebrates. A bundle's function can be explained in part by its operation near a particular type of bifurcation, a qualitative change in behavior. By operating near different varieties of bifurcation, the bundle responds best to disparate classes of stimuli. We show how to determine the identity of and proximity to distinct bifurcations despite the presence of substantial environmental noise.
description: 6 figures, 1 supporting material
On the correlation of light polarization in uncorrelated disordered magnetic media
Creators: name: Kozhaev, M. A.
name: Niyazov, R. A.
name: Belotelov, V. I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Light scattering in a magnetic medium with uncorrelated inclusions is theoretically studied in the approximation of ladder diagram. Correlation between polarizations of electromagnetic waves that are produced by infinitely-distant dipole source is considered. Here white noise disorder model with Gaussian distribution is taken into account. In such a medium the magneto-optical interaction leads to correlation between perpendicular light polarizations. Spatial field correlation matrix with nonzero nondiagonal elements is obtained in the first order on gyration.
description: 6 pages, 3 figures