cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quasi-static crack front deformations in cohesive materials
Creators: name: Lebihain, Mathias
name: Roch, Thibault
name: Molinari, Jean-François
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: When a crack interacts with material heterogeneities, its front distorts and adopts complex tortuous configurations that are reminiscent of the energy barriers encountered during crack propagation. As such, the study of crack front deformations is key to rationalize the effective failure properties of micro-structured solids and interfaces. Yet, the impact of a localized dissipation in a finite region behind the crack front, called the process zone, has often been overlooked. In this work, we derive the equation ruling 3D coplanar crack propagation in heterogeneous cohesive materials where the opening of the crack is resisted by some traction in its wake. We show that the presence of a process zone results in two competing effects on the deformation of crack fronts: (i) it makes the front more compliant to small-wavelength perturbations, and (ii) it smooths out local fluctuations of strength and process zone size, from which emerge heterogeneities of fracture energy. Their respective influence on front deformations is shown to strongly impact the stability of perturbed crack fronts, as well as their stationary shapes when interacting with arrays of tough obstacles. Overall, our theory provides a unified framework to predict the variety of front profiles observed in experiments, even when the small-scale yielding hypothesis of linear elastic fracture mechanics breaks down.
Health and healing in a social setting : Siquijor Island, Philippines
Creators: name: Maghanoy, Lois
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.
Making memories stronger: Characterising the Effect of Piracetam, Memantine and Brain-Derived Neurotrophic Factor on Consolidation and Reconsolidation in the Day-Old Chick
Creators: name: Samartgis, Jodi Rebecca
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Psychology in Clinical Neuropsychology to the School of Psychological Science, Faculty of Science, Technology and Engineering, La Trobe University, Bundoora.
A linguistic study of the return of language in a homogeneous group of aphasic subjects (Class I Schuell)
Creators: name: Madsen, M. F.
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.
Designing a thermodynamically stable and intrinsically ductile refractory alloy
Creators: name: Shaikh, Sufyan M.
name: Murty, B. S.
name: Yadav, Satyesh K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Developing ductile refractory BCC alloys has remained a challenge. The intrinsic ductility (D) of an alloy is the ratio of surface energy ($γ_s$) and unstable stacking fault energy ($γ_{usfe}$). Lowering the valence electron concentration has been shown to improve the intrinsic ductility of refractory alloys. However, Re has been widely used to ductilize W, contrary to the low valency criteria suggested in the literature. Here we use density functional theory to calculate the enthalpy of formation, $γ_{usfe}$ and $γ_s$ of Group IV, V, VI elements and their 25 equiatomic binary alloys in BCC crystal structure. We found that positive enthalpy leads to a considerable reduction in $γ_{usfe}$ compared to composition averaged value, resulting in improved intrinsic ductility. Enthalpy is maximum at the equiatomic concentrations indicating the highly repulsive interaction between the alloy constituents and vicer-versa. We found that the repulsive interaction between the alloy constituents leads to a reduction in $γ_{usfe}$, making alloys intrinsically ductile.
description: 19 pages, 6 figures
(201493) Alice Kirkpatrick
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
A Direct Two-Dimensional Pressure Formulation in Molecular Dynamics
Creators: name: Yesudasan, Sumith
name: Chacko, Sibi K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Two-dimensional (2D) pressure field estimation in molecular dynamics (MD) simulations has been done using three-dimensional (3D) pressure field calculations followed by averaging, which is computationally expensive due to 3D convolutions. In this work, we develop a direct 2D pressure field estimation method which is much faster than 3D methods without losing accuracy. The method is validated with MD simulations on two systems: a liquid film and a cylindrical drop of argon suspended in surrounding vapor.
description: Replaced with an improvised version
Experimental Demonstration of Entanglement-Enhanced Rotation Angle Estimation Using Trapped Ions
Creators: name: Itano, W. M.
name: Kielpinski, D.
name: Meyer, V.
name: Rowe, M. A.
name: Sackett, C. A.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Contribution of σ-meson exchange to elastic lepton-proton scattering
Creators: name: Koshchii, O.
name: Afanasev, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Lepton mass effects play a decisive role in description of elastic lepton-proton scattering when the beam's energy is comparable to the mass of the lepton. The future MUSE experiment, which is devised to solve the "Proton Radius Puzzle", is going to cover the corresponding kinematic region for a scattering of muons by a proton target. We anticipate that helicity-flip meson exchanges will make a difference in comparison of elastic electron-proton versus muon-proton scattering in MUSE. In this article, we estimate the $σ$ meson exchange contribution in the $t$-channel. This contribution, mediated by two-photon coupling of $σ$, is calculated to be at most $\sim 0.1 \%$ for muons in the kinematics of MUSE and it is about 3 orders in magnitude larger than for electrons because of the lepton-mass difference.
description: 8 pages, 5 figures, minor corrections
Two characterisations of groups amongst monoids
Creators: name: Montoli, Andrea
name: Rodelo, Diana
name: Van der Linden, Tim
Publisher: name: arXiv
Year: 2016
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18D35, 20J15, 18E99, 03C05, 08C05

description: The aim of this paper is to solve a problem proposed by Dominique Bourn: to provide a categorical-algebraic characterisation of groups amongst monoids and of rings amongst semirings. In the case of monoids, our solution is given by the following equivalent conditions: (i) $G$ is a group; (ii) $G$ is a Mal'tsev object, i.e., the category of points over $G$ in the category of monoids is unital; (iii) $G$ is a protomodular object, i.e., all points over $G$ are stably strong. We similarly characterise rings in the category of semirings. On the way we develop a local or object-wise approach to certain important conditions occurring in categorical algebra. This leads to a basic theory involving what we call unital and strongly unital objects, subtractive objects, Mal'tsev objects and protomodular objects. We explore some of the connections between these new notions and give examples and counterexamples.
description: 30 pages. Revised version: small changes throughout the text, restricted Proposition 6.17 to the pointed context, added references to recent related work
A comparative study of changes of private school patterns in Australia and in China, 1985-1994 :
Creators: name: Ma, Xiaomei
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.
Signatures of anisotropic diffusion around PeVatrons in 100 TeV gamma-ray data
Creators: name: Giacinti, G.
name: Abounnasr, T.
name: Neronov, A.
name: Semikoz, D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Tibet AS$γ$ collaboration has reported a diffuse $γ$-ray emission signal from the Galactic Plane. We consider the possibility that the diffuse emission from the outer Galactic Plane at the highest energies is produced by cosmic rays spreading from a single supernova-type source either in the Local or Perseus arm of the Milky Way. We show that anisotropic diffusion of multi-PeV cosmic rays along the Galactic magnetic field can produce an extended source spanning ten(s) of degrees on the sky, with a flux-per-unit-solid-angle consistent with Tibet AS$γ$ measurements. Observations of this new type of very extended sources, and measurements of their morphologies, can be used to characterize the anisotropic diffusion of PeV cosmic rays in the Galactic magnetic field, and to constrain the locations and properties of past PeVatrons.
description: 7 pages, 3 figures
Evaluating single session family therapy in a child and adolescent mental health service (CAMHS) setting
Creators: name: Wyatt, Roy
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Clinical Psychology (DClinPsych) to the School of Psychological Science, Faculty of Science, Technology and Engineering, La Trobe University, Bundoora.
Anomaly-based Correlation of IDS Alarms
Creators: name: Tjhai, Gina C.
Publisher: name: University of Plymouth
Year: 2011
Subjects: Intrusion Detection System
Intrusion Detection System False Alarms and Unsupervised- based Correlation

description: An Intrusion Detection System (IDS) is one of the major techniques for securing information systems and keeping pace with current and potential threats and vulnerabilities in computing systems. It is an indisputable fact that the art of detecting intrusions is still far from perfect, and IDSs tend to generate a large number of false IDS alarms. Hence human has to inevitably validate those alarms before any action can be taken. As IT infrastructure become larger and more complicated, the number of alarms that need to be reviewed can escalate rapidly, making this task very difficult to manage. The need for an automated correlation and reduction system is therefore very much evident. In addition, alarm correlation is valuable in providing the operators with a more condensed view of potential security issues within the network infrastructure. The thesis embraces a comprehensive evaluation of the problem of false alarms and a proposal for an automated alarm correlation system. A critical analysis of existing alarm correlation systems is presented along with a description of the need for an enhanced correlation system. The study concludes that whilst a large number of works had been carried out in improving correlation techniques, none of them were perfect. They either required an extensive level of domain knowledge from the human experts to effectively run the system or were unable to provide high level information of the false alerts for future tuning. The overall objective of the research has therefore been to establish an alarm correlation framework and system which enables the administrator to effectively group alerts from the same attack instance and subsequently reduce the volume of false alarms without the need of domain knowledge. The achievement of this aim has comprised the proposal of an attribute-based approach, which is used as a foundation to systematically develop an unsupervised-based two-stage correlation technique. From this formation, a novel SOM K-Means Alarm Reduction Tool (SMART) architecture has been modelled as the framework from which time and attribute-based aggregation technique is offered. The thesis describes the design and features of the proposed architecture, focusing upon the key components forming the underlying architecture, the alert attributes and the way they are processed and applied to correlate alerts. The architecture is strengthened by the development of a statistical tool, which offers a mean to perform results or alert analysis and comparison. The main concepts of the novel architecture are validated through the implementation of a prototype system. A series of experiments were conducted to assess the effectiveness of SMART in reducing false alarms. This aimed to prove the viability of implementing the system in a practical environment and that the study has provided appropriate contribution to knowledge in this field.
Υποστηρικτικές δράσεις στο περιβάλλον από τον τομέα ορυκτών καυσίμων
Creators: name: Φλεβαράκης, Κωνσταντίνος Χριστοφόρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Αεριοποίηση ανθράκων
Ενισχυμένη απόληψη υδρογονανθράκων
Μη συμβατικά κοιτάσματα λιθίου
Coal gasification
Enhanced oil recovery
Unconventional lithium deposits

description: Το διαχρονικό ζήτημα της προστασίας του φυσικού περιβάλλοντος έχει λάβει προεκτάσεις σε πολλούς τομείς της καθημερινότητας του ανθρώπου. Διεθνείς από κοινού συμφωνίες συνετέλεσαν στην σύσταση ενιαίου εθνικού σχεδίου για την ενέργεια και το κλίμα. Στον σχεδιασμό αυτόν γνωστοποιούνται δεδομένα και στόχοι που αφορούν την ενέργεια ώστε να επιτευχθούν οι διεθνείς συμφωνίες. Πιο συγκεκριμένα στη παρούσα διπλωματική εργασία περιγράφονται όσα αναφέρονται στο Ενιαίο Σχέδιο για την Ενέργεια και το Κλίμα (ΕΣΕΚ) και τη μελέτη που εξέδωσε το ITRE (Industry, Research and Energy) κι αφορούν τον τομέα της ενέργειας των ορυκτών καυσίμων. Τα δεδομένα που προκύπτουν εμπλουτίζονται από δράσεις οι οποίες λειτουργούν υποστηρικτικά στο φυσικό περιβάλλον όπως η αεριοποίηση των ανθράκων, η ενισχυμένη απόληψη υδρογονανθράκων με διοξείδιο του άνθρακα ( CO2 EOR) και η συμπαραγωγή Λιθίου από κοιτάσματα υδρογονανθράκων. Τέλος, ο εμπλουτισμός πραγματοποιείται με την ανάπτυξη του σχεδίου της Ινδίας για την παραγωγή ενέργειας από αεριοποιημένους άνθρακες ο οποίος ακολουθείτε από την μελέτη ενισχυμένης απόληψης υδρογονανθράκων με χρήση διοξειδίου του άνθρακα και ολοκληρώνεται με την αναφορά μιας σύγχρονης και αμφιλεγόμενης δράσης δηλαδή της συμπαραγωγής Λιθίου από υψηλής αλατότητας υπόγεια ύδατα τα οποία συνδέονται με κοιτάσματα υδρογονανθράκων.
description: Undoubtedly, environmental protection has been at the centre of discussions for a long time. The past few years international policy makers contributed to our national energy plan. Through national energy plan we are informed about data and targets that we have to adopt in order to achieve international agreements. To be more specific, in this Master Thesis I describe data, targets and tools that our national energy plan and the report of the committee on Industry, Research and Energy (ITRE) mention as guidelines to fossil fuels energy sector. In addition to these, I am pinpointing environmentally supportive actions by fossil fuels energy sector such as coal gasification, CO2 tertiary oil recovery and Lithium production from brines. Last but not least to sum up, I describe India’s coal gasification national plan, a report about CO2 enhanced oil recovery and a report about viability of production methods which are applied to Lithium brines.
description: Σε συνεργασία με: Μηχανικών Μεταλλείων Μεταλλουργών (Εθνικό Μετσόβιο Πολυτεχνείο), Γεωλογίας και Γεωπεριβάλλοντος (Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών), Οικονομικών Επιστημών (Δημοκρίτειο Πανεπιστήμιο Θράκης)
Simulations of the Fe K-alpha Energy Spectra from Gravitationally Microlensed Quasars
Creators: name: Krawczynski, Henric
name: Chartas, George
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The analysis of the Chandra X-ray observations of the gravitationally lensed quasar RX J1131-1231 revealed the detection of multiple and energy-variable spectral peaks. The spectral variability is thought to result from the microlensing of the Fe K-alpha emission, selectively amplifying the emission from certain regions of the accretion disk with certain effective frequency shifts of the Fe K-alpha line emission. In this paper, we combine detailed simulations of the emission of Fe K-alpha photons from the accretion disk of a Kerr black hole with calculations of the effect of gravitational microlensing on the observed energy spectra. The simulations show that microlensing can indeed produce multiply peaked energy spectra. We explore the dependence of the spectral characteristics on black hole spin, accretion disk inclination, corona height, and microlensing amplification factor, and show that the measurements can be used to constrain these parameters. We find that the range of observed spectral peak energies of QSO RX J1131-1231 can only be reproduced for black hole inclinations exceeding 70 degree and for lamppost corona heights of less than 30 gravitational radii above the black hole. We conclude by emphasizing the scientific potential of studies of the microlensed Fe K$α$ quasar emission and the need for more detailed modeling that explores how the results change for more realistic accretion disk and corona geometries and microlensing magnification patterns. A full analysis should furthermore model the signal-to-noise ratio of the observations and the resulting detection biases.
description: 14 pages, 14 figures
Simultaneous Inference of Neutron Star Equation of State and the Hubble Constant with a Population of Merging Neutron Stars
Creators: name: Ghosh, Tathagata
name: Biswas, Bhaskar
name: Bose, Sukanta
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We develop a method for implementing a proposal on utilizing knowledge of neutron star (NS) equation of state (EoS) for inferring the Hubble constant from a population of binary neutron star (BNS) mergers. This method is useful in exploiting BNSs as standard sirens when their redshifts are not available. Gravitational wave (GW) signals from compact object binaries provide a direct measurement of their luminosity distances, but not their redshifts. Unlike in the past, here we employ a realistic EoS parametrization in a Bayesian framework to simultaneously measure the Hubble constant and refine the constraints on the EoS parameters. The uncertainty in the redshift depends on the uncertainties in the EoS and the mass parameters estimated from GW data. Combining the inferred BNS redshifts with the corresponding luminosity distances, one constructs a redshift-distance relation and deduces the Hubble constant from it. Here, we show that in the Cosmic Explorer era, one can measure the Hubble constant to a precision of $\lesssim 5\%$ (with a $90\%$ credible interval) with a realistic distribution of a thousand BNSs, while allowing for uncertainties in their EoS parameters. Such a measurement can potentially resolve the current tension in the measurements of the Hubble constant from the early- and late-time universe. The methodology implemented in this work demonstrates a comprehensive prescription for inferring the NS EoS and the Hubble constant by simultaneously combining GW observations from merging NSs, while employing a simple population model for NS masses and keeping the merger rate of NSs constant in redshift. This method can be immediately extended to incorporate merger rate, population properties, and additional cosmological parameters.
description: Published in PRD
Ενθυμήσεις, Αφιερώσεις, Κτητορικά και Βραχέα Χρονικά σε κώδικες των Μετεώρων
Creators: name: Γκιουζέλης, Ευάγγελος Σταματίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Θεολογία
Καλαμπάκα
Ιερά Μονή Αγίου Στεφάνου
Theology
Kalabaka
Monastery of Saint Stefanos

description: Η παρούσα εργασία για τις Ενθυμήσεις, τα Αφιερώματα και τα Βραχέα Χρονικά των Κωδίκων και των Χειρογράφων των Αγίων Μετεώρων είναι ένα ακόμη λαμπρό ερευνητικό έργο για τον καλοπροαίρετο ερευνητή. Ξεκινώντας από τους Κώδικες και τα χειρόγραφα της Ιεράς Μονής του Αγίου Στεφάνου, ακολούθησε ομοίως η Ιερά Μονή Αγίας Τριάδος και κλείνοντας με τους κώδικες και τα χειρόγραφα της Ιεράς Μονής Αγίου Νικολάου Αναπαύσα. Σχετικά με τις αναμνήσεις και τα αφιερώματα, τα περισσότερα από αυτά που αναφέρθηκαν στην Εισαγωγή, και φαίνεται ότι αν κάποιος θέλει να ασχοληθεί εκτενέστερα με την έρευνά του, θα μπορέσει να εμβαθύνει σε όλα αυτά τα στοιχεία, όπως και οι προηγούμενοι ερευνητές. Τα κτητορικά υποδεικνύουν τον ιδιοκτήτη που μπορεί να είναι ο συγγραφέας. Πολλά είναι χωρίς ημερομηνία και έχουν ένα στυλ που καθορίζει τη γραφή τους. Οι μνήμες έχουν ιστορικό ενδιαφέρον και όταν εκτείνονται σε μεγαλύτερο κύκλο ονομάζονται διηγήματα. Ελπίζω αυτή η εργασία να αποτελέσει ερευνητικό σταθμό και επιστημονικό γεγονός.
description: The present work on the Memoirs, Tributes and Brief Chronicles of the Holy Meteor Codices and Manuscripts is yet another brilliant research project for the well-intentioned researcher. Starting with the Codices and manuscripts of the Holy Monastery of Agios Stefanos, followed similarly by the Holy Monastery of Agia Triados and closing with the codices and manuscripts of the Holy Monastery of Agios Nikolaos Anapaus. Regarding the memories and tributes, most of them were mentioned in the Introduction, and it seems that if one wants to go further in his research, he will be able to delve into all these elements, as the previous researchers did. Possessives indicate the owner who may be the author. Many are undated and have a style that defines their writing. Memoirs have historical interest and when they extend into a larger circle they are called short stories. I hope this work will be a research station and a scientific event.
description: Σε συνεργασία με: Κοινωνικής Θεολογίας (Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών)
(201495) Louisa Astley Aliston
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Gravastar under the framework of braneworld gravity II: effect of the Kuchowicz metric function
Creators: name: Ray, Saibal
name: Ghosh, Shounak
name: Sengupta, Rikpratik
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In recent years, a class of compact objects called gravastars have drawn immense interest as regular solutions to end state stellar collapse. Since the energy density involved in collapse process is expected to be high, it is a natural choice to study such compact objects in context of modified gravity theories which reduce to General Relativity (GR) in the low energy regime. We have already framed a model of gravastar in such a modified gravity framework involving extra dimensional Randall-Sundrum (RS) single brane gravity~[Phys. Rev. D \textbf{102}, 024037 (2020)] \cite{Sengupta1}. As a sequel in the present paper we substantially improve our previous model by choosing the Kuchowicz function as one of the metric potentials, which leads to many new interesting results and physical features from our analysis as discussed in this paper. Also, we provide essential additional stability checks on our gravastar model to investigate the possibility of any instability creeping in due to the higher dimensional framework. Our present improved gravastar model is found to clear all the stability checks successfully. Very interestingly, the static spherically symmetric matter distributions are found to accommodate both classes of solutions obeying and violating the modified energy conditions on the RS brane as we find in this work. We can conclude from our analysis that the Kuchowicz metric potential is very effective for describing regular solutions to compact objects at substantially high energies on the 3-brane.
description: 14 pages, 10 figures
A parametric reconstruction of the deceleration parameter
Creators: name: Mamon, Abdulla Al
name: Das, Sudipta
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The present work is based on a parametric reconstruction of the deceleration parameter $q(z)$ in a model for the spatially flat FRW universe filled with dark energy and non-relativistic matter. In cosmology, the parametric reconstruction technique deals with an attempt to build up a model by choosing some specific evolution scenario for a cosmological parameter and then estimate the values of the parameters with the help of different observational datasets. In this paper, we have proposed a logarithmic parametrization of $q(z)$ to probe the evolution history of the universe. Using the type Ia supernova (SNIa), baryon acoustic oscillation (BAO) and the cosmic microwave background (CMB) datasets, the constraints on the arbitrary model parameters $q_{0}$ and $q_{1}$ are obtained (within $1σ$ and $2σ$ confidence limits) by $χ^{2}$-minimization technique. We have then reconstructed the deceleration parameter, the total EoS parameter $ω_{tot}$, the jerk parameter and have compared the reconstructed results of $q(z)$ with other well-known parametrizations of $q(z)$. We have also shown that two model selection criteria (namely, Akaike information criterion and Bayesian Information Criterion) provide the clear indication that our reconstructed model is well consistent with other popular models.
description: v2:substantially revised, refs added, Accepted for publication in European Physical Journal C
Διερεύνηση των αντιλήψεων και στάσεων των επαγγελματιών υγείας της 3ης ΥΠΕ που συμμετείχαν στο Εθνικό Πρόγραμμα Εμβολιασμών Κατ’ οίκον έναντι του νέου κορωνοϊού Sars Cov-2 για τη δημιουργία ενός βιώσιμου μοντέλου κατ’ οίκον φροντίδας στην Πρωτοβάθμια Φροντίδα Υγείας
Creators: name: Ταχταλίδου, Ζωή Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Εμβολιασμός κατά SARS-CoV-2
Πρωτοβάθμια Φροντίδα Υγείας
Φροντίδα κατ’ οίκον.
Covid-19 vaccination
Homebound patients
Homecare

description: Σκοπός της ποσοτικής έρευνας ήταν η διερεύνηση των στάσεων και αντιλήψεων των επαγγελματιών υγείας των Κέντρων Υγείας της 3ης ΥΠΕ σχετικά με την εμπειρία τους από το πρόγραμμα «Κατ’ οίκον εμβολιασμοί» έναντι του νέου Κορωνοϊού SARS COV-2 και η συλλογή σημαντικών πληροφοριών για τη δυνατότητα εφαρμογής ενός βιώσιμου μοντέλου «Φροντίδας κατ’ οίκον» με στόχο την ολιστική φροντίδα ατόμων με αδυναμία πρόσβασης στις δομές Πρωτοβάθμιας Φροντίδας Υγείας καθώς και την βελτίωση της οργάνωσης των δομών αυτών. Στη συνέχεια έγινε περιγραφική και επαγωγική στατιστική ανάλυση των αποτελεσμάτων και επιχειρήθηκε συσχέτιση παραγόντων που τυχόν διαφοροποίησαν τις απαντήσεις των συμμετεχόντων. Από την ανάλυση των αποτελεσμάτων φάνηκε πως η εμπειρία από τη συμμετοχή στο πρόγραμμα «Κατ’ οίκον εμβολιασμοί» ήταν θετική για την πλειοψηφία των συμμετεχόντων και πως υπάρχει δυνατότητα για την εφαρμογή ενός προγράμματος «Φροντίδας κατ’ οίκον» αλλά προϋποθέτει την εξασφάλιση επάρκειας χρόνου και την απαραίτητη στελέχωση σε ανθρώπινο δυναμικό και υλικοτεχνικό εξοπλισμό.
description: A quantitative study to probe attitudes and perception of health workers based on their experience from the “Homebound patients’ vaccination” program against coronavirus SARS COV-2 and the ability of a sustainable formation of a “Homecare” program with holistic care for patients with less or no access to Primary Health services and their improvement in general. Then using descriptive and inductive statistical analysis for the results we tried to find factors that may influenced participants’ answers. The analysis showed that there was positive experience on the “Homebound patients’ vaccination” program for the majority of the participants and the ability of forming a sustainable “Homecare” program can be achieved if time, staff and equipment availability is ensured.
Understanding the glycopeptide antibiotic crosslinking cascade – in vitro approaches revealing the details of a complex biosynthesis pathway
Creators: name: Cryle, Max
name: Zhao, Yongwei
name: Ho, Y. T. Candace
name: TAILHADES, JULIEN
Publisher: name: Monash University
Year: 2022
Subjects: Proteins and peptides
Natural products and bioactive compounds
Organic chemical synthesis

description: The glycopeptide antibiotics (GPAs) are a fascinating example of complex natural product biosynthesis, with the non-ribosomal synthesis of the peptide core coupled to a cytochrome P450-mediated cyclisation cascade that crosslinks aromatic side chains within this peptide. Given the challenges associated with the synthesis of GPAs stems from their highly crosslinked structure, there is great interest in understanding how biosynthesis accomplishes this challenging set of transformations. In this regard, the use of in vitro experiments has delivered important insights into this process, including the identification of the unique role of the X-domain as a platform for P450 recruitment. In this mini-review, we present an analysis of the results of in vitro studies into the GPA cyclisation cascade, which has demonstrated both the tolerances and limitations of this process for modified substrates, and in turn developed rules for the future reengineering of this important antibiotic class.
Older adults' travel patterns and use of public and private transport to chosen occupations in Singapore and Melbourne
Creators: name: Krishnasamy, Charmaine
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in total fulfilment of the requirements for the degree of Doctor of Philosophy to the Department of Occupational Therapy, School of Allied Health, La Trobe University, Bundoora.
Probing quantum entanglement from magnetic-sublevels populations: beyond spin squeezing inequalities
Creators: name: Müller-Rigat, Guillem
name: Lewenstein, Maciej
name: Frérot, Irénée
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spin squeezing inequalities (SSI) represent a major tool to probe quantum entanglement among a collection of few-level atoms, and are based on collective spin measurements and their fluctuations. Yet, for atomic ensembles of spin-$j$ atoms and ultracold spinor gases, many experiments can image the populations in all Zeeman sublevels $s=-j, -j+1, \dots, j$, potentially revealing finer features of quantum entanglement not captured by SSI. Here we present a systematic approach which exploits Zeeman-sublevel population measurements in order to construct novel entanglement criteria, and illustrate our approach on ground states of spin-1 and spin-2 Bose-Einstein condensates. Beyond these specific examples, our approach allows one to infer, in a systematic manner, the optimal permutationally-invariant entanglement witness for any given set of collective measurements in an ensemble of $d$-level quantum systems.
description: 6 + 9 pages, 2 figures. Final version accepted in Quantum Journal
Qatar Exoplanet Survey : Qatar-3b, Qatar-4b and Qatar-5b
Creators: name: Alsubai, Khalid A.
name: Mislis, Dimitris
name: Tsvetanov, Zlatan I.
name: Latham, David W.
name: Bieryla, Allyson
name: Buchhave, Lars A.
name: Esquerdo, Gilbert A.
name: Bramich, D. M.
name: Pyrzas, Stylianos
name: Vilchez, Nicolas P. E.
name: Mancini, Luigi
name: Southworth, John
name: Evans, Daniel F.
name: Henning, Thomas
name: Ciceri, Simona
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report the discovery of Qatar-3b, Qatar-4b, and Qatar-5b, three new transiting planets identified by the Qatar Exoplanet Survey (QES). The three planets belong to the hot Jupiter family, with orbital periods of $P_{Q3b}$=2.50792 days, $P_{Q4b}$=1.80539 days, and $P_{Q5b}$=2.87923 days. Follow-up spectroscopic observations reveal the masses of the planets to be $M_{Q3b}$=4.31$\pm0.47$ $M_{\rm J}$, $M_{Q4b}$=6.10$ \pm0.54$ $M_{\rm J}$, and $M_{Q5b}$ = 4.32$ \pm0.18$ $M_{\rm J}$, while model fits to the transit light curves yield radii of $R_{Q3b}$ = 1.096$ \pm0.14$ $R_{\rm J}$, $R_{Q4b}$ = 1.135$ \pm0.11$ $R_{\rm J}$, and $R_{Q5b}$ = 1.107$ \pm0.064$ $R_{\rm J}$. The host stars are low-mass main sequence stars with masses and radii $M_{Q3}$ = 1.145$ \pm0.064$ $M_{\odot}$, $M_{Q4}$ = 0.896$ \pm0.048$ $M_{\odot}$, $M_{Q5}$ = 1.128$ \pm0.056$ $M_{\odot}$ and $R_{Q3}$ = 1.272$ \pm0.14$ $R_{\odot}$, $R_{Q4}$ = 0.849$\pm0.063$ $R_{\odot}$ and $R_{Q5}$ = 1.076$\pm0.051$ $R_{\odot}$ for Qatar-3, 4 and 5 respectively. The V magnitudes of the three host stars are $V_{Q3}$=12.88, $V_{Q4}$=13.60, and $V_{Q5}$=12.82. All three new planets can be classified as heavy hot Jupiters (M > 4 $M_{J}$).
description: 13Pages, 8Figures
Pattern-Division Multiplexing for Continuous-Aperture MIMO
Creators: name: Zhang, Zijian
name: Dai, Linglong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: Systems and Control (eess.SY)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In recent years, continuous-aperture multiple-input multiple-output (CAP-MIMO) is reinvestigated to achieve improved communication performance with limited antenna apertures. Unlike the classical MIMO composed of discrete antennas, CAP-MIMO has a continuous antenna surface, which is expected to generate any current distribution (i.e., pattern) and induce controllable spatial electromagnetic waves. In this way, the information can be modulated on the electromagnetic waves, which makes it promising to approach the ultimate capacity of finite apertures. The pattern design for CAP-MIMO is the key factor to determine the communication performance, but it has not been well studied in the literature. In this paper, we propose the pattern-division multiplexing to design the patterns for CAP-MIMO. Specifically, we first derive the system model of a typical multi-user CAP-MIMO system, which allows us to formulate the sum-rate maximization problem. Then, we propose a general pattern-division multiplexing technique to transform the design of continuous pattern functions to the design of their projection lengths on finite orthogonal bases. Based on this technique, we further propose a pattern design scheme to solve the formulated sum-rate maximization problem. Simulation results show that, the sum-rate achieved by the proposed scheme is about 260% higher than that achieved by the benchmark scheme.
description: Accepted by IEEE ICC 2022. In this paper, we propose pattern-division multiplexing to design the patterns for a continuous-aperture MIMO system. The simulation codes are provided at: http://oa.ee.tsinghua.edu.cn/dailinglong/publications/publications.html. arXiv admin note: substantial text overlap with arXiv:2111.08630
Supplements to Drastic demographic changes triggered the Uralic spread
Creators: name: Grünthal, Riho
name: Heyd, Volker
name: Holopainen, Sampsa
name: Janhunen, Juha A.
name: Khanina, Olesya
name: Miestamo, Matti
name: Nichols, Johanna
name: Saarikivi, Janne
name: Sinnemäki, Kaius
Publisher: name: Zenodo
Year: 2022
Subjects: Uralic, Finno-Ugric, Indo-European, Yamnaya, Indo-Iranian, Siberia, Eurasia, Seima-Turbino, 4.2 ka event, linguistic homelandK

description: Supplements (text, figures, tables, R script, dataset) to an article published in Diachronica (https://doi.org/10.1075/dia.20038.gru).
Subcritical bootstrap percolation via Toom contours
Creators: name: Hartarsky, Ivailo
name: Szabó, Réka
Publisher: name: arXiv
Year: 2022
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 60K35 (primary), 60C05, 82C20 (secondary)

description: In this note we provide an alternative proof of the fact that subcritical bootstrap percolation models have a positive critical probability in any dimension. The proof relies on a recent extension of the classical framework of Toom. This approach is not only simpler than the original multi-scale renormalisation proof of the result in two and more dimensions, but also gives significantly better bounds. As a byproduct, we improve the best known bounds for the stability threshold of Toom's North-East-Center majority rule cellular automaton.
description: 16 pages, 3 figures
Imag(in)ing the mother : transformative images in H.D.'s epic poetry
Creators: name: Lucas, Rose
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.
Uniform exponential growth for CAT(0) square complexes
Creators: name: Kar, Aditi
name: Sageev, Michah
Publisher: name: arXiv
Year: 2016
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: In this paper we start the inquiry into proving uniform exponential growth in the context of groups acting on CAT(0) cube complexes. We address free group actions on CAT(0) square complexes and prove a more general statement. This says that if $F$ is a finite collection of hyperbolic automorphisms of a CAT(0) square complex $X$, then either there exists a pair of words of length at most 10 in $F$ which freely generate a free semigroup, or all elements of $F$ stabilize a flat (of dimension 1 or 2 in $X$). As a corollary, we obtain a lower bound for the growth constant, $\sqrt[10]{2}$, which is uniform not just for a given group acting freely on a given CAT(0) cube complex, but for all groups which are not virtually abelian and have a free action on a CAT(0) square complex.
description: Comments welcome
UGR tests with atomic clocks and atom interferometers
Creators: name: Di Pumpo, Fabio
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Atomic interference experiments test the universality of the coupling between matter-energy and gravity at different spacetime points, thus being in principle able to probe possible violations of the universality of the gravitational redshift (UGR). In this contribution, we introduce a UGR violation model and then discuss UGR tests performed by atomic clocks and atom interferometers on the same footing. We present a large class of atom-interferometric geometries which are sensitive to violations of UGR.
description: 8 pages, 3 figures. Contribution to the 2022 Gravitation session of the 56th Rencontres de Moriond
(201489) James Smith
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Sparse domination theorem for multilinear singular integral operators with $L^{r}$-Hörmander condition
Creators: name: Li, Kangwei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: In this note, we show that if $T$ is a multilinear singular integral operator associated with a kernel satisfies the so-called multilinear $L^{r}$-Hörmander condition, then $T$ can be dominated by multilinear sparse operators.
description: 13 pages. Updated according to the referees' suggestions, to appear in Michigan Math. J
Chitosan nanoparticles as a delivery vehicle for [14C]-Doxorubicin and the formaldehyde releasing prodrug AN-250
Creators: name: Masarudin, Mas Jaffri
Publisher: name: La Trobe
Year: 2023

description: Submission note: A thesis submitted in total fulfillment of the requirements for the degree of Doctor of Philosophy to the Department of Physics, School of Engineering and Mathematical Sciences, Department of Biochemistry, School of Molecular Sciences Faculty of Science, Technology and Engineering, La Trobe University Bundoora.

There are issues with some images in this thesis.
title: Determining the Macromolecular Structures of Photosynthetic Supercomplexes from Rhodobacter using Cryo-Electron Microscopy
Creators: name: Bracun, Laura
Publisher: name: University of Liverpool Repository
Year: 2025

description: The reaction center (RC)−light-harvesting complex 1 (LH1) supercomplex plays a central role in bacterial photosynthesis by converting light into chemical energy. Some RC–LH1 complexes integrate an additional protein PufX which is key for bacterial growth and photosynthetic competence. This thesis presents the atomic models of RC−LH1−PufX complexes from three species of purple bacteria: Rhodobacter (Rba.) sphaeroides, Rba. veldkampii and Rba. capsulatus. Electron potential maps used to build the models were obtained by single particle cryo-electron microscopy at resolutions of 2.84 Å (Rba. veldkampii), 3.40 Å and 2.79 Å (Rba. sphaeroides), and 2.59 Å (Rba. capsulatus). The RC–LH1–PufX native monomers of Rba. veldkampii and Rba. capsulatus contain LH1 rings comprised of 15 αβ-heterodimers featuring a gap formed by PufX. The RC−LH1−PufX native dimer of Rba. sphaeroides contains an S-shaped LH1 ring of 28 αβ-heterodimers with two large gaps formed by PufX polypeptides, and an additional polypeptide PufY inserted between the LH1 ring and the RC near each gap. In order to understand the process of dimerization and the structural impacts of the additional polypeptides PufX and PufY, we also characterized the native monomer and three mutant complexes: one without the PufX, one without the PufY and one with PufX replaced with PufX of a strictly monomeric complex from Rba. veldkampii. 
The presented high-resolution WT and mutant structures provided insights into monomeric and dimeric RC‒LH1 complex formation, quinone pathway and roles of polypeptides PufX and PufY. PufX was observed to mediate dimerization through its N-terminus, correct complex assembly and halting the LH1 ring elongation resulting in a characteristic open architecture. PufY was observed to possibly stabilize the LH1 ring, increasing the efficiency of excitation energy transfer and potentially helping with quinone navigation. The features, similarities and differences displayed by RC‒LH1‒PufX complexes serve as a structural basis for understanding the mechanism of anoxygenic photosynthesis, as well as environmental adaptation and evolution of photosynthetic systems.
The verb phrase in Singapore English
Creators: name: Lian, Ho Mian
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.