cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Geochronology, taxonomy and morphology of select fossils of the Buchan Caves, south-eastern Australia
Creators: name: Shean, Danielle A.
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: The Buchan Caves, in the northeast of Victoria, contain a diverse and fascinating palaeofauna, reflecting a wide range of environmental conditions from the Pleistocene through to the present. Prominent within the assemblage is the Pleistocene-aged megafauna, represented at Buchan by Thylacoleo carnifex, Simosthenurus occidenta/is, 'Procoptodon' gilli, Zygomaturus trilobus, Diprotodon optatum, Protemnodon anak, Protemnodon sp., Sthenurus sp., Palorchestes azael and Palorchestes parvus. The objective of this thesis was to investigate the antiquity, morphology and myology of a newly discovered cranium of Palorchestes azael. Using Uranium-Thorium dating technique on calcite encrusting the fossil, a new date of 275 ± 0.03 Ka was determined, which allows correlation of this fossil locale with other fossiliferous cave deposits throughout Australia. Examination of comparative myology and osteology of vestibular-proboscis-bearing placental mammals, including Tapirus terrestris, Elephas maximus, Saiga tatarica andAlces alces, it is suggested that unlike older species within the genus, such as P painei, P azael did not possess a proboscis. Distinct differences in cranial morphology (such as the unusual positioning of the jugal, nasals and zygomatic arch, as well as foreshortening of the antero-dorsal surface of the cranium) indicates that P azael differs from all other species observed in this investigation. The differences observed in the masticatory musculature proposed a change in dietary behaviour from older species of Palorchestes. The large sinus cavities observed throughout the cranium of P azael are structurally analogous to those of Diprotodon optatum, a contemporary of P azael, and may represent a functional multi-derived feature, possibly evolved to reduce skull weight and increase surface area for the insertion of masticatory musculature.
The Use of Minimal Spanning Trees in Particle Physics
Creators: name: Rainbolt, Jessica Lovelace
name: Schmitt, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Applications (stat.AP)
subject: High Energy Physics - Experiment (hep-ex)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Minimal spanning trees (MSTs) have been used in cosmology and astronomy to distinguish distributions of points in a multi-dimensional space. They are essentially unknown in particle physics, however. We briefly define MSTs and illustrate their properties through a series of examples. We show how they might be applied to study a typical event sample from a collider experiment and conclude that MSTs may prove useful in distinguishing different classes of events.
description: 29 pages, 30 figures
Control Synthesis for Stability and Safety by Differential Complementarity Problem
Creators: name: Yi, Yinzhuang
name: Koga, Shumon
name: Gavrea, Bogdan
name: Atanasov, Nikolay
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: This paper develops a novel control synthesis method for safe stabilization of control-affine systems as a Differential Complementarity Problem (DCP). Our design uses a control Lyapunov function (CLF) and a control barrier function (CBF) to define complementarity constraints in the DCP formulation to certify stability and safety, respectively. The CLF-CBF-DCP controller imposes stability as a soft constraint, which is automatically relaxed when the safety constraint is active, without the need for parameter tuning or optimization. We study the closed-loop system behavior with the CLF-CBF-DCP controller and identify conditions on the existence of local equilibria. Although in certain cases the controller yields undesirable local equilibria, those can be confined to a small subset of the safe set boundary by proper choice of the control parameters. Then, our method can avoid undesirable equilibria that CLF-CBF quadratic programming techniques encounter.
Quark Confinement, New Cosmic Expansion and General Yang-Mills Symmetry
Creators: name: Hsu, Jong-Ping
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We discuss a unified model of quark confinement and new cosmic expansion with linear potentials based on a general $(SU_3)_{color} \times (U_1)_{baryon}$ symmetry. The phase functions in the usual gauge transformations are generalized to new `action integrals'. The general Yang-Mills transformations have group properties and reduce to usual gauge transformations in special cases. Both quarks and `gauge bosons' are permanently confined by linear potentials. In this unified model of particle-cosmology, physics in the largest cosmos and that in the smallest quark system appear to both be dictated by the general Yang-Mills symmetry and characterized by a universal length. The basic force between two baryons is independent of distance. However, the cosmic repulsive force exerted on a baryonic supernova by a uniform sphere of galaxies is proportional to the distance from the center of the sphere. The new general Yang-Mills field may give a field-theoretic explanation of the accelerated cosmic expansion. The prediction could be tested experimentally by measuring the frequency shifts of supernovae at different distances.
description: 8 pages, to be published in the Chinese Physics C (2017). (to replace the previous submission by the same author.)
Relativistic effects on the Schrödinger-Newton equation
Creators: name: Brizuela, David
name: Duran-Cabacés, Albert
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Schrödinger-Newton model describes self-gravitating quantum particles, and it is often cited to explain the gravitational collapse of the wave function and the localization of macroscopic objects. However, this model is completely nonrelativistic. Thus, in order to study whether the relativistic effects may spoil the properties of this system, we derive a modification of the Schrödinger-Newton equation by considering certain relativistic corrections up to the first post-Newtonian order. The construction of the model begins by considering the Hamiltonian of a relativistic particle propagating on a curved background. For simplicity, the background metric is assumed to be spherically symmetric and it is then expanded up to the first post-Newtonian order. After performing the canonical quantization of the system, and following the usual interpretation, the square of the module of the wave function defines a mass distribution, which in turn is the source of the Poisson equation for the gravitational potential. As in the nonrelativistic case, this construction couples the Poisson and the Schrödinger equations and leads to a complicated nonlinear system. Hence, the dynamics of an initial Gaussian wave packet is then numerically analyzed. We observe that the natural dispersion of the wave function is slower than in the nonrelativistic case. Furthermore, for those cases that reach a final localized stationary state, the peak of the wave function happens to be located at a smaller radius. Therefore, the relativistic corrections effectively contribute to increase the self-gravitation of the particle and strengthen the validity of this model as an explanation for the gravitational localization of the wave function.
description: Version accepted for publication. We have added Refs. [20], [22], [23], and [24], and corrected several typos in the bibliography. The new Appendix B analyzes the effects produced by relativistic corrections in the Poisson equation. We have also included several clarifications, in particular in Sec. 2.2., to explain the validity of the model
Limit theory for geometric statistics of point processes having fast decay of correlations
Creators: name: Blaszczyszyn, B.
name: Yogeshwaran, D.
name: Yukich, J. E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: Computational Geometry (cs.CG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: 60F05, 60D05, 60G55

description: Let $P$ be a simple,stationary point process having fast decay of correlations, i.e., its correlation functions factorize up to an additive error decaying faster than any power of the separation distance. Let $P_n:= P \cap W_n$ be its restriction to windows $W_n:= [-{1 \over 2}n^{1/d},{1 \over 2}n^{1/d}]^d \subset \mathbb{R}^d$. We consider the statistic $H_n^ξ:= \sum_{x \in P_n}ξ(x,P_n)$ where $ξ(x,P_n)$ denotes a score function representing the interaction of $x$ with respect to $P_n$. When $ξ$ depends on local data in the sense that its radius of stabilization has an exponential tail, we establish expectation asymptotics, variance asymptotics, and CLT for $H_n^ξ$ and, more generally, for statistics of the re-scaled, possibly signed, $ξ$-weighted point measures $μ_n^ξ := \sum_{x \in P_n} ξ(x,P_n) δ_{n^{-1/d}x}$, as $W_n \uparrow \mathbb{R}^d$. This gives the limit theory for non-linear geometric statistics (such as clique counts, intrinsic volumes of the Boolean model, and total edge length of the $k$-nearest neighbors graph) of $α$-determinantal point processes having fast decreasing kernels extending the CLTs of Soshnikov (2002) to non-linear statistics. It also gives the limit theory for geometric U-statistics of $α$-permanental point processes and the zero set of Gaussian entire functions, extending the CLTs of Nazarov and Sodin (2012) and Shirai and Takahashi (2003), which are also confined to linear statistics. The proof of the central limit theorem relies on a factorial moment expansion originating in Blaszczyszyn (1995), Blaszczyszyn, Merzbach, Schmidt (1997) to show the fast decay of the correlations of $ξ$-weighted point measures. The latter property is shown to imply a condition equivalent to Brillinger mixing and consequently yields the CLT for $μ_n^ξ$ via an extension of the cumulant method.
description: 62 pages. Fundamental changes to the terminology including the title. The earlier 'clustering' condition is now introduced as a notion of mixing and its connection to Brillinger mixing is remarked. Newer results for superposition of independent point processes have been added
(200441) Mabel Louisa Elizabeth White
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.
LHC multijet events as a probe for anomalous dimension-six gluon interactions
Creators: name: Krauss, Frank
name: Kuttimalai, Silvan
name: Plehn, Tilman
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Higher-dimensional multi-gluon interactions affect essentially all effective Lagrangian analyses at the LHC. We show that, contrary to common lore, such operators are best constrained in multi-jet production. Our limit on the corresponding new physics scale in the multi-TeV range exceeds the typical reach of global dimension-6 Higgs and top analyses. This implies that the pure Yang-Mills operator can safely be neglected in almost all specific higher-dimensional analyses at Run II.
Symmetry breaking, Anisotropic Growth and Spectroscopy of Single Crystal Gold Nanoparticles
Creators: name: WENMING TONG
Publisher: name: Monash University
Year: 2017
Subjects: subject: 100706 Nanofabrication, Growth and Self Assembly
subject: FOS: Nanotechnology
subject: 100708 Nanomaterials
subject: 30304 Physical Chemistry of Materials
subject: FOS: Chemical sciences

description: This thesis reports investigations into both synthesis and the morphology-optical property relationships of gold nanoparticles. Specifically, the single crystal gold nanorod is chosen as a model to investigate the symmetry breaking of single crystal gold seeds and the effect of this on the gold nanorod aspect ratio (a ratio of length to width of gold nanorods) control during nanorod growth. Single crystal gold nanorods are also chosen for a case study into the effect of the tip morphologies on the optical properties via correlated single particle spectroscopy. In an extension to the optical properties, surface plasmon resonance coupling of gold nanocube dimers are investigated.
PERFIL CLÍNICO-EPIDEMIOLÓGICO DOS INDIVÍDUOS DIAGNOSTICADOS COM CRIPTOCOCOSE NO NORTE DO TOCANTINS
Creators: name: João Victor Campos SILVA
name: Rogério Vitor Matheus RODRIGUES
name: Silvia Minharro BARBOSA
Publisher: name: Zenodo
Year: 2024
Subjects: Criptococose
Epidemiologia
Infecções Oportunistas

description: A criptococose é uma zoonose oportunista causada por fungos dos género Cryptococcus spp. que possui distribuição global, acometendo principalmente indivíduos imunocomprometidos, em especial aqueles vivendo com HIV/AIDS. No Brasil, não é uma doença de notificação obrigatória, assim carecem dados para determinar o comportamento epidemiológico desta micose. Diante disso, o presente estudo propôs o levantamento clínico e epidemiológico dos casos de criptococose atendidos em um hospital universitário no Norte do Tocantins. Trata-se de um estudo retrospectivo baseado em dados de prontuários dos indivíduos diagnosticados com criptococose atendidos no Hospital de Doenças Tropicais da Universidade Federal do Tocantins no período de 2017 a 2021. Foram identificados 8 casos de infecção criptocócica, com predominância de casos em adultos do sexo masculino (n=7/8; 87,5%) e procedentes de áreas urbanas (n=7/8; 87,5%). A infecção pelo HIV esteve presente em todos os pacientes (n=8/8; 100%), todos manifestaram a forma clínica de meningoencefalite (n=8/8; 100%), 3 (37,5%) evoluíram com sequelas e 1 (12,5%) ao óbito. Logo, faz-se necessário a instituição de medidas para vigilância epidemiológica da criptococose, à fim de fornecer dados para futuros estudos clínicos e ações de prevenção e promoção de saúde.
On the Almost Everywhere Stability of Discrete-Time Dynamical Systems
Creators: name: Karabacak, Ozkan
name: Wisniewski, Rafael
name: Leth, John-Josef
Publisher: name: arXiv
Year: 2016
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: For a dynamical system, it is known that the existence of a Lyapunov-type density function, called Lyapunov density or Rantzer's density function, implies convergence of Lebesgue almost all solutions to an equilibrium. Using the duality between Frobenius-Perron and Koopmann operators, we generalize this result from equilibrium to invariant sets, both for continuous- and discrete-time. Furthermore, some redundant assumptions that exist in the literature of almost everywhere stability for discrete-time, such as the local stability of the attractor and the compactness of the state space, has been removed.
Riddles in Maasai
Creators: name: Karani, Michael
Publisher: name: Zenodo
Year: 2020
Subjects: Languages of Tanzania
Nilotic
Eastern Nilotic
Maasai
Riddles

description: An overview of riddles and riddling in Maasai.
description: Note: This talk has not gone through a process of peer review, and findings should therefore be treated as preliminary and subject to change. Acknowledgement and citation: Karani, Michael. 2020. Riddles in Maasai. Talk given at the Rift Valley Network Workshop "Riddles of the Rift Valley: Variation and convergence in a verbal genre". 20/11/2020.
(200443) Thomas James Hayter Chase
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.
All finite-mass Dirac monopoles
Creators: name: Blaschke, Filip
name: Beneš, Petr
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We present a "primitive" way of realizing finite-mass Dirac monopoles in $U(1)$ gauge theories involving a single non-minimally interacting scalar field. Typically, the energy density of this type of monopole is not concentrated at its core, but it is distributed in a spherical shell, as we illustrate on several exact solutions in the Bogomol'nyi-Prasad-Sommerfield (BPS) limit. We show that our construction can be interpreted as a limit of infinitely massive $W$ bosons coupled to electromagnetic field-strength via a dipole moment. Combining our approach with ideas of Weinberg and Lee, we present a general landscape of $U(1)$ gauge models that support a finite-mass Dirac monopole. In fact, all classical monopoles, i.e., Wu-Yang, 't Hooft-Polyakov, Cho-Maison, etc., are special points on this landscape.
description: 5 pages, 3 figures, revised version published in PRD
Script for mathematical models - Resource intensive;Script for mathematical models - Resource light;Simulation model analysis;Simulation models;Readme from Suppression force-fields and diffuse competition: competition de-escalation is an evolutionarily stable strategy
Creators: name: Atwater, Daniel Z.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology

description: Competition theory is founded on the premise that individuals benefit from harming their competitors, which helps them secure resources and prevent inhibition by neighbours. When multiple individuals compete, however, competition has complex indirect effects that reverberate through competitive neighbourhoods. The consequences of such ‘diffuse’ competition are poorly understood. For example, competitive effects may dilute as they propagate through a neighbourhood, weakening benefits of neighbour suppression. Another possibility is that competitive effects may rebound on strong competitors, as their inhibitory effects on their neighbours benefit other competitors in the community. Diffuse competition is unintuitive in part because we lack a clear conceptual framework for understanding how individual interactions manifest in communities of multiple competitors. Here, I use mathematical and agent-based models to illustrate that diffuse interactions—as opposed to direct pairwise interactions—are likely the dominant mode of interaction among multiple competitors. Consequently, competitive effects may regularly rebound, incurring fitness costs under certain conditions, especially when kin-kin interactions are common. These models provide a powerful framework for investigating competitive ability and its evolution and produce clear predictions in ecologically realistic scenarios.
Informed Sampling-based Collision Avoidance with Least Deviation from the Nominal Path
Creators: name: Enevoldsen, Thomas T.
name: Galeazzi, Roberto
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This paper addresses local path re-planning for $n$-dimensional systems by introducing an informed sampling scheme and cost function to achieve collision avoidance with minimum deviation from an (optimal) nominal path. The proposed informed subset consists of the union of ellipsoids along the specified nominal path, such that the subset efficiently encapsulates all points along the nominal path. The cost function penalizes large deviations from the nominal path, thereby ensuring current safety in the face of potential collisions while retaining most of the overall efficiency of the nominal path. The proposed method is demonstrated on scenarios related to the navigation of autonomous marine crafts.
description: Accepted for publication at IROS'2022
A refined approach for non-negative entire solutions of $Δu + u^p = 0$ with subcritical Sobolev growth
Creators: name: Villavert, John
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35B08, 35B53, 35J60

description: Let $N\geq 2$ and $1 < p < (N+2)/(N-2)_{+}$. Consider the Lane-Emden equation $Δu + u^p = 0$ in $\mathbb{R}^N$ and recall the classical Liouville type theorem: if $u$ is a non-negative classical solution of the Lane-Emden equation, then $u \equiv 0$. The method of moving planes combined with the Kelvin transform provides an elegant proof of this theorem. A classical approach of J. Serrin and H. Zou, originally used for the Lane-Emden system, yields another proof but only in lower dimensions. Motivated by this, we further refine this approach to find an alternative proof of the Liouville type theorem in all dimensions.
description: 17 pages
Secondary GeV-TeV emission from ultra-high-energy cosmic rays accelerated by GRB 221009A
Creators: name: Mirabal, Nestor
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The origin of ultra-high-energy cosmic rays (UHECRs) remains elusive. Gamma-ray bursts (GRBs) are among the best candidates able to meet the stringent energy requirements needed for particle acceleration to such high energies. If UHECRs were accelerated by the central engine of GRB 221009A, it might be possible to detect secondary photons and neutrinos as the UHECRs travel from the source to the Earth. Here we attempt to interpret some of the early publicly available data connected to this burst. If the reported early GeV-TeV detection was produced by secondary emission from UHECRs it probably indicates that UHECRs reached energies $> 10^{21}$ eV and that GRB 221009A exploded inside a magnetic void with intergalactic magnetic field (IGMF) strength $B \leq 3 \times 10^{-16}$ G. In order to understand the entire energy deposition mechanism, we propose to search existing and future Fermi-LAT data for secondary emission arriving over larger spatial scales and longer time-scales. This strategy might help clarify the origin of UHECRs, constrain the intergalactic magnetic field (IGMF) strength along this line of sight and start to quantify the fraction of magnetic voids around GRBs.
description: Accepted for publication in MNRAS Letters. 2 pages
Genomic and evolutionary basis of a passerine invasion (Corvidae: Corvus splendens)
Creators: name: URSZULA KRZEMINSKA
Publisher: name: Monash University
Year: 2017
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60411 Population, Ecological and Evolutionary Genetics
subject: Molecular Biology
subject: 60309 Phylogeny and Comparative Analysis

description: The focus of this thesis is the application of genetics to address the key knowledge gaps related to migration patterns, genetic diversity and evolutionary history of the invasive house crow (Corvus splendens). The house crow is one of the best known and most widespread crow species and is characterised by a capacity to exploit diverse habitats often remote from its natural range.
Advanced Electrochemical Techniques for Investigating Electron Transfer Kinetics
Creators: name: Sze-Yin Tan
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: Heterogenous interfacial electron transfer processes are of fundamental and applied importance to electrochemists and are extensively studied by a wide range of electrochemical techniques. This thesis focuses on the development of analysis strategies and electrochemical methodologies for more detailed quantitative investigations of electron transfer kinetics at a plethora of electrode materials, with an emphasis on carbon-based materials. Of interest are the techniques of Fourier-transformed large amplitude alternating current voltammetry (FTACV) and scanning electrochemical microscopy (SECM).

 The complementary electrochemical techniques of FTACV and SECM are used for measurements of fast electron transfer to reveal the impact of the complex heterogeneous surface of degenerately-doped polycrystalline boron-doped diamond electrode surfaces compared to conventional electrode materials such as platinum and gold. This part of the work highlights the importance of understanding the influence of measurement technique and further demonstrates how electron transfer at semi-metallic electrodes differ from conventional metallic electrodes.

 The oxidation of a ferrocene-derivative at highly oriented pyrolytic graphite is used to demonstrate the effects of reversible reactant adsorption on the SECM response. The high surface area-to-solution volume ratio of nanogap SECM measurements depicts the importance of understanding the impact of such surface effects. Precise quantitative kinetic analysis requires understanding of the mass transport between the SECM probe and electrode surface. Finite element method modelling was used to extensively investigate the effects of electrode reactant processes and the results of the models shed light on important factors that need to be accounted for in quantitative analysis of nanogap voltammetric measurements.

 FTACV is further developed as a tool for kinetic selectivity at heterogeneous electrode surfaces. This is achieved by taking advantage of the harmonic-dependent measurement timescale of FTACV to deconvolute a dual-heterogeneity electrochemical response into its individual components. Protocols are developed for this application and demonstrated experimentally using the ruthenium hexamine and ferrocene methanol redox couples.
Riddles in Ihanzu
Creators: name: Harvey, Andrew
Publisher: name: Zenodo
Year: 2020
Subjects: Languages of Tanzania
Tanzanian Rift Valley Area
Bantu
Ihanzu
Riddles

description: An overview of riddles and riddling in Ihanzu.
description: Note: This talk has not gone through a process of peer review, and findings should therefore be treated as preliminary and subject to change. Acknowledgement and citation: Harvey, Andrew. 2020. Riddles in Ihanzu. Talk given at the Rift Valley Network Workshop "Riddles of the Rift Valley: Variation and convergence in a verbal genre". 20/11/2020.
MPEC 2023-F118 : 2023 FJ3
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 FJ3

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.
Hidden Hearts of Neutrino Active Galaxies
Creators: name: Murase, Kohta
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent multimessenger studies have provided evidence for high-energy neutrino sources that are opaque to GeV-TeV gamma rays. We present model-independent studies on the connection between neutrinos and gamma rays in the active galaxy NGC 1068, and find that the neutrinos most likely come from regions within about 30-100 Schwarzschild radii. This is especially the case if neutrinos are produced via the photomeson production process, although the constraints could be alleviated if hadronuclear interactions are dominant. We consider the most favorable neutrino production regions, and discuss coronae, jets, winds, and their interactions with dense material. The results strengthen the importance of understanding dissipation mechanisms near the coronal region and the outflow base. There could be a connection between active galactic nuclei with near-Eddington accretion and tidal disruptions events, in that neutrinos are produced in the obscured vicinity of supermassive black holes.
description: 10 pages, 4 figures, version published in ApJL
Cinclidotus aquaticus Bruch & Schimp.
Creators: name: Kiebacher, Thomas
name: Lüth, Michael
name: Lüth, Volker
name: Kučera, Jan
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Pottiales
Cinclidotaceae
Cinclidotus
Cinclidotus aquaticus

description: Cinclidotus aquaticus (Hedw.) Bruch & Schimp.
 SPECIMEN. — Austria. Upper Austria: Piesslingursprung, 760 m a.s.l., 27.IX.2003, Kučera (CBFS[CBFS 11079]; MK031725, MK031717).
description: Published as part of Kiebacher, Thomas, Lüth, Michael, Lüth, Volker & Kučera, Jan, 2019, Morphological and molecular evidence for synonymy of Cinclidotus confertus Lüth with C. riparius (Host ex Brid.) Arn., pp. 259-269 in Cryptogamie, Bryologie 20 (20) on page 269, DOI: 10.5252/cryptogamie-bryologie2019v40a20, http://zenodo.org/record/7999944
\bf $δM$ Formalism: A New Approach to Cosmological Perturbation Theory in Anisotropic Inflation
Creators: name: Talebian-Ashkezari, Alireza
name: Ahmadi, Nahid
name: Abolhasani, Ali Akbar
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: We study the evolution of the metric perturbations in a Bianchi background in the long-wavelength limit. By applying the gradient expansion to the equations of motion we exhibit a generalized "Separate Universe" approach to the cosmological perturbation theory. Having found this consistent separate universe picture, we introduce the $δM $ formalism for calculating the evolution of the linear tensor perturbations in anisotropic inflation models in {\it almost} the same way that the so-called $δN$ formula is applied to the super-horizon dynamics of the curvature perturbations. Similar to her twin formula, $δN$, this new method can substantially reduce the amount of calculations related to the evolution of tensor modes. However, it is not as general as $δN$, it is a "perturbative" formula and solves the shear only to linear order. In other words, it is restricted to weak shear limit.
description: 35 pages, 2 figures
Quantum state purity versus average phonon number for characterization of mechanical oscillators in cavity optomechanics
Creators: name: Børkje, K.
name: Marin, F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Quantum oscillators in Gaussian states are often characterized by average occupation numbers that refer to a basis of eigenstates of the non-interacting oscillator Hamiltonian. We argue that quantum state purity is a more appropriate characteristic of such states, which can be applied to oscillators of any dimensionality. For a one-dimensional oscillator, the state purity is directly related to a thermal occupation number defined with respect to the number state basis in which the oscillator's quantum state is thermal. Thus, it naturally introduces a more versatile definition of an average occupation number. We study optomechanical sideband cooling of one- and two-dimensional mechanical oscillators in particular, and derive exact analytical expressions for the maximal mechanical state purity achievable in the quantum backaction limit. In the case of a one-dimensional oscillator, we show that the thermal occupation number related to purity can be well approximated by the average phonon number in the weak-coupling regime, but that the two differ in the regime of ultrastrong optomechanical coupling or in cases where the oscillator's resonance frequency is strongly renormalized.
description: 13 pages, 4 figures
(200444) Eliza Corke
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.
Multidimensional Gas Chromatography with Advanced Mass Spectrometry for Phytoanalysis of Plant Essential Oil
Creators: name: YONG FOO WONG
Publisher: name: Monash University
Year: 2017
Subjects: subject: 30199 Analytical Chemistry not elsewhere classified
subject: FOS: Chemical sciences

description: This thesis describes the method development and application for targeted and/or untargeted analysis of a diverse range of plant secondary compounds in a range of plant essential oils (agarwood, tea tree, copaiba, and eucalyptus). Techniques used for analysis include advanced multidimensional gas chromatography (MDGC), hyphenated with either unit mass or high resolution mass spectrometry (MS). The thesis outcomes provides an extension of existing information for practical studies using MDGC-MS detection methods for plant-derived extracts. This thesis also highlights the opportunities for future developments in high resolution methods for the analysis of plant secondary compounds.
Novel strategy for obtaining and studying metal complexes: a spectroscopic, computational and electrochemical study of metal complexes with pyridine based ligands
Creators: name: SHRAVAN SHASHI ACHARYA
Publisher: name: Monash University
Year: 2017
Subjects: subject: 30102 Electroanalytical Chemistry
subject: FOS: Chemical sciences
subject: 30604 Electrochemistry
subject: Inorganic Chemistry
subject: Computational Chemistry

description: Several pyridine-based metal complexes were studied spectroscopically, electrochemically and computationally with the aim of achieving better insight of the metal centre and applying the fundamental knowledge gained in the development of an efficient catalytic centre. We were fairly successful in our goal. The NMR studies yielded improved understanding of several cobalt and manganese polypyridyl-based catalytic centres. A robust synthetic strategy, however, was needed to test these complexes for any catalytic activity. A novel and easy film forming metal complexation technique was developed. Using the technique a successful electrocatalyst for the reduction of nitrite was reported. An additional computational study of reorganization energies was carried out on a set of copper-polypyridine complexes to generate a trend that would assist in the identification of an efficient redox-mediator for use in dye sensitized solar cells.
Consistency relations for large scale structures with primordial non-Gaussianities
Creators: name: Valageas, Patrick
name: Taruya, Atsushi
name: Nishimichi, Takahiro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate how the consistency relations of large-scale structures are modified when the initial density field is not Gaussian. We consider both scenarios where the primordial density field can be written as a nonlinear functional of a Gaussian field and more general scenarios where the probability distribution of the primordial density field can be expanded around the Gaussian distribution, up to all orders over $δ_{L0}$. Working at linear order over the non-Gaussianity parameters $f_{\rm NL}^{(n)}$ or $S_n$, we find that the consistency relations for the matter density fields are modified as they include additional contributions that involve all-order mixed linear-nonlinear correlations $\langle \prod δ_L \prod δ\rangle$. We derive the conditions needed to recover the simple Gaussian form of the consistency relations. This corresponds to scenarios that become Gaussian in the squeezed limit. Our results also apply to biased tracers, and velocity or momentum cross-correlations.
description: 13 pages
Cyrene as a greener alternative to harmful solvents used in pharmaceutical cleaning
Creators: name: Aramouni, Nicolas
name: STEINER-BROWNE, MARINA
name: MOURAS, RABAH
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences

description: This work explores the use of cyrene as a green solvent to improve the cleaning performance on Islatravir, Doravirine and Olanzapine, which are challenging drugs to clean. Cyrene addition showed an improvement in aqueous and methanolic solubility, and ternary cyrene blends showed high solubility at high cyrene concentration, which did not directly translate into a reduction in cleaning time. The presence of cyrene and its geminal diol form reduced the API surface concen?tration after cleaning, thus improving the dissolution of the bound API layer. Cyrene was effi?ciently removed by water and left low residues. Higher cyrene concentrations (>20% vol) must be assessed for API solubility and suitability for CIP applications.
(200446) Thomas Corke Chase
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.
Gravitational waves at aLIGO and vacuum stability with a scalar singlet extension of the Standard Model
Creators: name: Balazs, Csaba
name: Fowlie, Andrew
name: Mazumdar, Anupam
name: White, Graham
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A new gauge singlet scalar field can undergo a strongly first-order phase transition (PT) leading to gravitational waves (GW) potentially observable at aLIGO and simultaneously stabilize the electroweak vacuum. aLIGO (O5) is potentially sensitive to cosmological PTs at $10^7$-$10^8$ GeV, which coincides with the requirement that the singlet scale is less than the Standard Model (SM) vacuum instability scale, which is between $10^8$ GeV and $10^{14}$ GeV. After sampling its parameter space, we identify three benchmark points with a PT at about $T\approx 10^7$ GeV in a gauge singlet extension of the SM. We calculate the nucleation temperature, order parameter, characteristic timescale, and peak amplitude and frequency of GW from bubble collisions during the PT for the benchmarks and find that, in an optimistic scenario, GW from such a PT may be in reach of aLIGO (O5). We confirm that the singlet stabilizes the electroweak vacuum whilst remaining consistent with zero-temperature phenomenology as well. Thus, this scenario presents an intriguing possibility that aLIGO may detect traces of fundamental physics motivated by vacuum stability at an energy scale that is well above the reach of any other experiment.
description: 10 pages, 7 figures. Improved calculation of beta parameter. Conclusions unchanged. Closely matches published version
title: Measuring asymmetry
title: A recommendation
titleType: AlternativeTitle
Creators: name: Frondel, Manuel
name: Vance, Colin
Publisher: name: Technische Universität Dortmund
Year: 2014
Subjects: subject: irreversibility
subject: decomposition approaches
subject: 310
subject: 330
subject: 620

description: A range of primary methods for dealing with price asymmetry, such as the approaches proposed by WOLFFRAM (1971) and HOUCK (1977), have been established in the literature, but consensus on which method should be preferred remains elusive. This note demonstrates that, theoretically, these two definitions are equivalent to a straightforward notion of asymmetry based on first differences. Using monthly data on gasoline prices and sales from the U.S., we illustrate, however, that, in practice, these approaches may yield divergent conclusions with respect to asymmetry.We argue that in such situations the asymmetry notion based on first differences should be preferred.
description: Discussion Paper / SFB 823;3/2014
The effect of the loss of basal cellular processes on early zebrafish development
Creators: name: Moore, Wade Bradley
Publisher: name: Monash University
Year: 2017
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Developmental Biology

description: Basal cellular processes such as mRNA translation or cellular mitosis are essential to development. Loss of basal cellular processes during embryogenesis can result in broad developmental defects. Using the zebrafish animal model, the loss of two basal cellular process genes, s415 and cep57 was characterised to better understand their role during embryogenesis. Loss of s415 causes numerous defects that arise during organogenesis. Loss of the centrosomal gene cep57 causes broad defects that arise during gastrulation. Both genes were confirmed to be essential for vertebrate development and advance our understanding of the cellular basis of development and disease.
Hadronic production of $Ξ_{bc}$ with the intrinsic heavy-quark content at a fixed-target experiment at the LHC
Creators: name: Li, Hong-Tai
name: Zheng, Xu-Chang
name: Yan, Jiang
name: Wu, Xing-Gang
name: Chen, Gu
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we make a detailed study on the hadronic production of the $Ξ_{bc}$ baryon at a fixed target experiment at the LHC (After@LHC). In estimating the production cross sections, the $(g+g)$, $(g+c)$ and $(g+b)$ production mechanisms are considered. For the initial heavy quarks, in addition to the extrinsic component, we also consider the intrinsic component. It is found that the $(g+c)$ and $(g+b)$ production mechanisms give sizable contributions to the $Ξ_{bc}$ production, and the $(g+b)$ mechanism dominates the production. The results show that there are about $3.40\times10^5$ $Ξ_{bc}$ events can be produced per year at After@LHC if the integrated luminosity of After@LHC can be up to $2\,{\rm fb}^{-1}$ per year. Moreover, the intrinsic heavy quarks can have significant impact on the production, which inversely makes the intrinsic component be possibly tested at the After@LHC.
description: 13 pages, 18 figures
Hadza phonetics: 3D/4D ultrasound and other instrumental analyses
Creators: name: Coburn, Jeremy
Publisher: name: Zenodo
Year: 2020
Subjects: Tanzanian Rift Valley Area
Languages of Tanzania
Hadza
Click Consonants
Phonetics
3D/4D Ultrasound

description: Since Sands, Maddieson & Ladefoged (1996), no in-depth instrumental investigation into Hadza phonetics has been undertaken and several key phonetic and phonological questions remain open. This presentation will discuss those open questions, as well as present novel data which promise to contribute significantly to our understanding of Hadza phonetics. Of particular interest is the groundbreaking information now available with advances in 3D/4D ultrasonography, providing spatially and temporally rich data on lingual articulation.
description: Note: This talk has not gone through a process of peer review, and findings should therefore be treated as preliminary and subject to change. Acknowledgement and citation: Coburn, Jeremy. 2020. Hadza phonetics: 3D/4D ultrasound and other instrumental analyses. Talk given at the Rift Valley Network Webinar Series. 26/08/2020.
Cinclidotus confertus Luth
Creators: name: Kiebacher, Thomas
name: Lüth, Michael
name: Lüth, Volker
name: Kučera, Jan
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Pottiales
Cinclidotaceae
Cinclidotus
Cinclidotus confertus

description: Cinclidotus confertus Lüth
 SPECIMENS. — 1: Greece. Epirus: Vikos Gorge between Vikos and Monodendri, 495 m a.s.l., 07.VI.2015, ML & TK (priv. herb. ML 8158; MK314718, MK036235); 2: Epirus: Aoos Gorge between Konitsa an Stomio monastery, 460 m a.s.l., 40.025417°N, 20.768278°E, 09.VI.2015, TK & ML (CBFS[CBFS 20056], priv. herb. TK 944; MK031726, MK031718).
description: Published as part of Kiebacher, Thomas, Lüth, Michael, Lüth, Volker & Kučera, Jan, 2019, Morphological and molecular evidence for synonymy of Cinclidotus confertus Lüth with C. riparius (Host ex Brid.) Arn., pp. 259-269 in Cryptogamie, Bryologie 20 (20) on page 269, DOI: 10.5252/cryptogamie-bryologie2019v40a20, http://zenodo.org/record/7999944
Application of Inorganic Hole Transporting Materials in Perovskite Solar Cells
Creators: name: GAVESHANA ANURADHA SEPALAGE
Publisher: name: Monash University
Year: 2017
Subjects: subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 100708 Nanomaterials
subject: FOS: Nanotechnology

description: Despite their rapid increase in device performances, organic-inorganic hybrid “perovskite” solar cells are costly and suffer from low stability of organic hole transporting materials (HTMs) and toxicity of lead. This thesis presents the application of inorganic HTMs as alternatives to organic HTMs, development of deposition techniques for inorganic HTMs and the role of HTMs on the performance and long-term stability of devices. Record power conversion efficiencies were achieved for planar structured inorganic HTMs based devices and their stability at different illumination and temperature conditions have been investigated. Moreover, a novel bismuth-based perovskite has been investigated as a replacement for the Pb-based perovskite.