cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Learning to Poke by Poking: Experiential Learning of Intuitive Physics
Creators: name: Agrawal, Pulkit
name: Nair, Ashvin
name: Abbeel, Pieter
name: Malik, Jitendra
name: Levine, Sergey
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We investigate an experiential learning paradigm for acquiring an internal model of intuitive physics. Our model is evaluated on a real-world robotic manipulation task that requires displacing objects to target locations by poking. The robot gathered over 400 hours of experience by executing more than 100K pokes on different objects. We propose a novel approach based on deep neural networks for modeling the dynamics of robot's interactions directly from images, by jointly estimating forward and inverse models of dynamics. The inverse model objective provides supervision to construct informative visual features, which the forward model can then predict and in turn regularize the feature space for the inverse model. The interplay between these two objectives creates useful, accurate models that can then be used for multi-step decision making. This formulation has the additional benefit that it is possible to learn forward models in an abstract feature space and thus alleviate the need of predicting pixels. Our experiments show that this joint modeling approach outperforms alternative methods.
Serum vitamin D levels in patients with chronic kidney disease
Creators: name: Rozita, Mohd
name: Noorul Afidza, Mohamad
name: Ruslinda, Mustafar
name: Cader, Rizna
name: Halim, A. Gafor
name: Kong, Chiew Tong Norella
name: Nor Azm, Kamaruddin
name: Shah, Shamsul Azhar
Publisher: name: Technische Universität Dortmund
Year: 2013
Subjects: subject: 25-hydroxyvitamin D
subject: vitamin D insufficiency and deficiency
subject: normal population
subject: CKD patients
subject: 610

description: Introduction: Hypovitaminosis D is reported to be associated with several medical complications. Recent studies have reported a high worldwide prevalence of Vitamin D deficiency in the general population (up to 80 %). This is even higher in patients with chronic kidney disease (CKD) and increases with advancing stages of CKD. Objectives: To determine the difference in serum Vitamin D [25-hydroxyvitamin D, 25(OH) D] levels between CKD patients and normal healthy population. Materials and Methods: A prospective crosssectional study involving 50 normal volunteers (control) and 50 patients with CKD stages 2-4. Their demographic profiles were recorded and blood samples taken for serum 25(OH) D, intact parathyroid hormone (iPTH) and other routine blood tests. Results: All subjects regardless of renal status had hypovitaminosis D (< 30ng/mL). The mean serum 25(OH) D were comparable in the control and CKD groups (15.3 ± 4.2 ng/mL vs 16.1 ± 6.2 ng/mL, p = NS). However, within the Vitamin D deficient group, the CKD group had lower levels of serum 25(OH) D [12.6( 3.7) ng/mL vs 11.2(6.5) ng/mL, p = 0.039]. Female gender [OR 22.553; CI 95 % (2.16-235.48); p = 0.009] and diabetic status [OR 6.456; CI 95 % (1.144-36.433); p = 0.035] were independent predictors for 25(OH) D deficiency. Conclusions: Vitamin D insufficiency and vitamin D deficiency are indeed prevalent and under-recognized. Although the vitamin D levels among the study subjects and their control are equally low, the CKD group had severe degree of vitamin D deficiency. Diabetic status and female gender were independent predictors of low serum 25(OH)D.
description: EXCLI Journal ; Vol. 12, 2013
On the contour prescriptions in string-inspired nonlocal field theories
Creators: name: Buoninfante, Luca
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In quantum field theory, a consistent prescription to define and deform integration contours in the complex energy plane is needed to evaluate loop integrals and compute scattering amplitudes. In some nonlocal field theories, including string field theory, interaction vertices contain transcendental functions of momenta that can diverge along certain complex directions, thus making it impossible to use standard techniques, such as Wick rotation, to perform loop integrals. The aim of this paper is to investigate the viability of several contour prescriptions in the presence of nonlocal vertices. We consider three ``different'' prescriptions, and establish their (in)equivalence in local and nonlocal theories. In particular, we prove that all these prescriptions turn out to be equivalent in standard local theories, while this is not the case for nonlocal theories where amplitudes must be defined first in Euclidean space, and then analytically continued to Minkowski. We work at one-loop level and focus on the bubble diagram. In addition to proving general results for a large class of nonlocal theories, we show explicit calculations in a string inspired nonlocal scalar model.
description: 45 pages, 8 figures (many subfigures). V2: minor changes; version accepted for publication in PRD
Advances in hepatic stem/progenitor cell biology
Creators: name: Verhulst, Stefaan
name: Best, Jan
name: Van Grunsven, Leo A.
name: Dollé, Laurent
Publisher: name: Technische Universität Dortmund
Year: 2015
Subjects: subject: 610

description: The liver is famous for its strong regenerative capacity, employing different modes of regeneration according to type and extent of injury. Mature liver cells are able to proliferate in order to replace the damaged tissue allowing the recovery of the parenchymal function. In more severe scenarios hepatocytes are believed to arise also from a facultative liver progenitor cell compartment. In human, severe acute liver failure and liver cirrhosis are also both important clinical targets in which regeneration is impaired, where the role of this stem cell compartment seems more convincing. In animal models, the current state of ambiguity regarding the identity and role of liver progenitor cells in liver physiology dampens the enthusiasm for the potential use of these cells in regenerative medicine. The aim of this review is to give the basics of liver progenitor cell biology and discuss recent results vis-à-vis their identity and contribution to liver regeneration.
description: EXCLI Journal ; Vol. 14, 2015
Mechanisms underlying different onset patterns of focal seizures
Creators: name: Wang, Yujiang
name: Trevelyan, Andrew J
name: Valentin, Antonio
name: Alarcon, Gonzalo
name: Taylor, Peter N
name: Kaiser, Marcus
Publisher: name: arXiv
Year: 2016
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Focal seizures are episodes of pathological brain activity that appear to arise from a localised area of the brain. The onset patterns of focal seizure activity have been studied intensively, and they have largely been distinguished into two types - low amplitude fast oscillations (LAF), or high amplitude spikes (HAS). Here we explore whether these two patterns arise from fundamentally different mechanisms. Here, we use a previously established computational model of neocortical tissue, and validate it as an adequate model using clinical recordings of focal seizures. We then reproduce the two onset patterns in their most defining properties and investigate the possible mechanisms underlying the different focal seizure onset patterns in the model. We show that the two patterns are associated with different mechanisms at the spatial scale of a single ECoG electrode. The LAF onset is initiated by independent patches of localised activity, which slowly invade the surrounding tissue and coalesce over time. In contrast, the HAS onset is a global, systemic transition to a coexisting seizure state triggered by a local event. We find that such a global transition is enabled by an increase in the excitability of the "healthy" surrounding tissue, which by itself does not generate seizures, but can support seizure activity when incited. In our simulations, the difference in surrounding tissue excitability also offers a simple explanation of the clinically reported difference in surgical outcomes. Finally, we demonstrate in the model how changes in tissue excitability could be elucidated, in principle, using active stimulation. Taken together, our modelling results suggest that the excitability of the tissue surrounding the seizure core may play a determining role in the seizure onset pattern, as well as in the surgical outcome.
Villagers of Modernity: A Study of the Urban Village in Shenzhen, China
Creators: name: Gao, Yanming
Publisher: name: University of Chicago
Year: 2022

description: Drawing upon ethnography and archival research, this long-form journalism depicts life in an urban village (chengzhongcun) in Shenzhen, China. Specifically, this article aims to explore the intricate relationship between the municipal government, the urban policies, and urban villagers. While the urban village in China is a well-discussed topic, the significance of this article rises from its attention to the diverse individual lived experience in an urban village that is unique to Shenzhen, a modern southern Chinese city. By contrasting the seemingly unregulated yet vibrant urban village area to the grand narrative of socialist modernity that Shenzhen is known for, this article asks the question of who the city is for, and how urban villagers can fit in the modernity narrative of Shenzhen.
A Ramsey Class for Steiner Systems
Creators: name: Bhat, Vindya
name: Nešetřil, Jaroslav
name: Reiher, Christian
name: Rödl, Vojtěch
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05D10, 05C55

description: We construct a Ramsey class whose objects are Steiner systems. In contrast to the situation with general $r$-uniform hypergraphs, it turns out that simply putting linear orders on their sets of vertices is not enough for this purpose: one also has to strengthen the notion of subobjects used from "induced subsystems" to something we call "strongly induced subsystems". Moreover we study the Ramsey properties of other classes of Steiner systems obtained from this class by either forgetting the order or by working with the usual notion of subsystems. This leads to a perhaps surprising induced Ramsey theorem in which designs get coloured.
description: third version addresses changes arising from the referee reports
Nearest neighbour statistics and probability functions : a theoretical examination of relationships between nearest neighbour statistics and stochastic processes which generate point patterns
Creators: name: Aplin, Graeme.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Quench dynamics of Bose-Einstein condensates in boxlike traps
Creators: name: Du, Rong
name: Xing, Jian-Chong
name: Xiong, Bo
name: Zheng, Jun-Hui
name: Yang, Tao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the nonequilibrium dynamics of two-dimensional Bose-Einstein condensates in boxlike traps with power-law potential boundaries by quenching the interatomic interactions. For both concave and convex potentials, we show that ring dark solitons can be excited during the quench dynamics. The modulation strength of the quench and the steepness of the boundary are two main factors affecting the evolution of the system. Five dynamic regimes are identified concerning the number of ring dark solitons excited in the condensate. For the situation without ring dark soliton excitations, the condensate undergoes damped radius oscillation. As far as the appearance of ring dark solitons, interesting structures arise from their decay. For the concave potential, the excitation patterns show a nested structure of vortex-antivortex pairs. For the convex potential, on the other hand, the dynamic excitation patterns display richer structures that have multiple transport behaviors.
description: 6 pages, 5 figures
Mayer, Bernhard/Seybold, Michael, Die Kirche als Mysterium in ihren Ämtern und Dienste
Creators: name: Ziegenaus, Anton
Publisher: name: Forum Katholische Theologie
Year: 1970

description: Forum Katholische Theologie, Bd. 4 Nr. 2 (1988): Forum Katholische Theologie, Band 4, Heft 2
Efficacy and safety of ashwagandha root extract on sexual health in healthy women: findings of a prospective, randomized, double-blind, placebo-controlled study
Creators: name: Mutha, Amit Shrenikraj
name: Mutha, Sonali Amit
name: Tejuja, Anupama Hem
name: Langade, Deepak K.
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: This study compared the efficacy and safety of Ashwagandha Root Extract (ARE) in healthy women against a placebo for improvement of Female Sexual Dysfunction (FSD). In this randomized, double-blind, placebo-controlled study, 62 healthy women aged 18–50 years were randomly allocated to ARE 600 mg/day (n = 31), or identical placebo (n = 31) for 8 weeks. Female Sexual Function Index (FSFI) scale, Female Sexual Distress Scale (FSDS), Satisfying Sexual Encounters (SSEs), Perceived Stress Scale (PSS-10), and SF-12 Quality of Life (QoL) scale was performed at each visit. Laboratory assessments included serum hormones, liver and renal parameters estimation at baseline and week 8. Greater improvements in scores for FSFI (p = 0.002), PSS (p = 0.0009), and SF-12 (p = 0.044) was seen with ARE. More improvement (p < 0.0001) in ‘sexual desire’ on the SSE scale and ‘desire (p = 0.003), satisfaction’ (p = 0.027) domain in FSFI scores occured with ARE. The hormonal levels were within normal ranges, and no changes were observed in safety parameters. Only one woman in the placebo group had mild dizziness. ARE improved sexual function and overall quality of life in women with sexual dysfunction. It was well-tolerated and may be a promising therapeutic option for FSD, though further research is needed.
Stable and high quality electron beams from staged laser and plasma wakefield accelerators
Creators: name: Foerster, F. M.
name: Döpp, A.
name: Haberstroh, F.
name: Grafenstein, K. v.
name: Campbell, D.
name: Chang, Y. -Y.
name: Corde, S.
name: Cabadağ, J. P. Couperus
name: Debus, A.
name: Gilljohann, M. F.
name: Habib, A. F.
name: Heinemann, T.
name: Hidding, B.
name: Irman, A.
name: Irshad, F.
name: Knetsch, A.
name: Kononenko, O.
name: de la Ossa, A. Martinez
name: Nutter, A.
name: Pausch, R.
name: Schilling, G.
name: Schletter, A.
name: Schöbel, S.
name: Schramm, U.
name: Travac, E.
name: Ufer, P.
name: Karsch, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We present experimental results on a plasma wakefield accelerator (PWFA) driven by high-current electron beams from a laser wakefield accelerator (LWFA). In this staged setup stable and high quality (low divergence and low energy spread) electron beams are generated at an optically-generated hydrodynamic shock in the PWFA. The energy stability of the beams produced by that arrangement in the PWFA stage is comparable to both single-stage laser accelerators and plasma wakefield accelerators driven by conventional accelerators. Simulations support that the intrinsic insensitivity of PWFAs to driver energy fluctuations can be exploited to overcome stability limitations of state-of-the-art laser wakefield accelerators when adding a PWFA stage. Furthermore, we demonstrate the generation of electron bunches with energy spread and divergence superior to single-stage LW-FAs, resulting in bunches with dense phase space and an angular-spectral charge density beyond the initial drive beam parameters. These results unambiguously show that staged LWFA-PWFA can help to tailor the electron-beam quality for certain applications and to reduce the influence of fluctuating laser drivers on the electron-beam stability. This encourages further development of this new class of staged wakefield acceleration as a viable scheme towards compact, high-quality electron beam sources.
On augmented superfield approach to vector Schwinger model
Creators: name: Gupta, Saurabh
name: Kumar, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We exploit the techniques of Bonora-Tonin superfield formalism to derive the off-shell nilpotent and absolutely anticommuting (anti-)BRST as well as (anti-)co-BRST symmetry transformations for the (1+1)-dimensional (2D) bosonized vector Schwinger model. In the derivation of above symmetries, we invoke the (dual)-horizontality conditions as well as gauge and (anti-)co-BRST invariant restrictions on the superfields that are defined onto the (2, 2)-dimensional supermanifold. We provide geometrical interpretation of the above nilpotent symmetries (and their corresponding charges). We also express the nilpotency and absolute anticommutativity of the (anti-)BRST and (anti-)co-BRST charges within the framework of augmented superfield formalism.
description: LaTeX file, 14 pages, no figures, version to appear in IJMPA
(202262) Rose Ada Sulivan
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.
Programação em Arduino de controlador de fluxo de agentes nos ninhos e controle de temperatura do ambiente
Creators: name: Fonseca, João Pedro Silva
name: Araújo Lima, Danielli
Publisher: name: figshare
Year: 2022
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences
subject: 91007 Manufacturing Robotics and Mechatronics (excl. Automotive Mechatronics)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 90602 Control Systems, Robotics and Automation

description: No projeto é apresentado o processo de implantação de um método automático de controle de fluxo de robôs em um ninho de depósito de materiais após realização de sua rota em determinada área. Esse método de controle se baseia na utilização de um microcontrolador denominado Arduino, devidamente programado para controlar o sensor existente nos ninhos. A implantação de um método de controle automático via Arduino nesse processo teve por finalidade verificar possíveis contribuições em termos de viabilidade econômica, técnica e funcional, além de melhorias no desempenho operacional, que possam permitir e indicar a sua aplicação em processos de escala industrial. Hoje, grande parte dos sistemas de controle são através de sensores, seja sensor de temperatura, umidade, radiação solar, dentre outros. O sensor é um dispositivo que lê uma grandeza física e transforma em uma Elétrica. Inicialmente foi feito um estudo para a aplicação da prototipagem baseada na plataforma Arduino com intuito de realização de testes dos sensores nos ninhos onde serão depositados os objetos capturados pelos robôs, para fazer o controle do fluxo de agentes que passam pelo ninho e também dos sensores de temperatura, para fazer a medição da mesma em determinado instante em algum ninho situado em uma área de ação dos agentes. Um problema encontrado é que vários robôs estão indo em direção a um mesmo ninho, gerando um congestionamento dos mesmos, aumentando a temperatura em um certo local e também a temperatura dos robôs. Esse fato pode afetar diretamente na funcionalidade do circuito, fazendo que o robô fique lento ou apresente falhas, e afeta também na vida útil do robô. Na prática, o projeto pode ser eficiente para controlar a melhor rota que deve ser seguida pelo robô, fazendo uma organização dos ninhos e controlando a temperatura para que não afete a funcionalidade do sistema.
"Prepositional" interference and deviation in migrant German and migrant Hungarian in Australia
Creators: name: Endrödy, T. E.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Quantum gravitational effects on boundary
Creators: name: Park, I. Y.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Quantum gravitational effects may hold the key to some of the outstanding problems in theoretical physics. In this work we analyze the perturbative quantum effects on the boundary of a gravitational system and Dirichlet boundary condtion imposed at the classical level. Our analysis reveals that for a black hole solution there exists a clash between the quantum effects and Dirichlet boundary condition: the solution of the one-particle-irreducible (1PI) action no longer obeys the Dirichlet boundary condition. The analysis also suggests that the violation of the Dirichlet boundary condition should be tied with a certain mechanism of information storage on the boundary.
description: 31 pages, 5 figures, minor changes, version to appear in TMPh
Universal Critical Behavior of Percolation in Orientationally Ordered Janus Particles and Other Anisotropic Systems
Creators: name: Hu, Hao
name: Ziff, Robert M.
name: Deng, Youjin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We combine percolation theory and Monte Carlo simulation to study in two dimensions the connectivity of an equilibrium lattice model of interacting Janus disks which self-assemble into an orientationally ordered stripe phase at low temperature. As the patch size is increased or the temperature is lowered, clusters of patch-connected disks grow, and a percolating cluster emerges at a threshold. In the stripe phase, the critical clusters extend longer in the direction parallel to the stripes than in the perpendicular direction, and percolation is thus anisotropic. It is found that the critical behavior of percolation in the Janus system is consistent with that of standard isotropic percolation, when an appropriate spatial rescaling is made. The rescaling procedure can be applied to understand other anisotropic systems, such as the percolation of aligned rigid rods and of the $q$-state Potts model with anisotropic interactions.
description: 6+10 pages, 4+14 figures
Strict local martingales: examples
Creators: name: Li, Xue-Mei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We show that a continuous local martingale is a strict local martingale if its supremum process is not in $ L_α$ for a positive number $α$ smaller than $1$. Using this we construct a family of strict local martingales.
description: To appear: Statistics and Probability Letters
Holographic quenches and anomalous transport
Creators: name: Ammon, Martin
name: Grieninger, Sebastian
name: Jimenez-Alba, Amadeo
name: Macedo, Rodrigo P.
name: Melgar, Luis
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the response of the chiral magnetic effect due to continuous quenches induced by time dependent electric fields within holography. Concretely, we consider a holographic model with dual chiral anomaly and compute the electric current parallel to a constant, homogeneous magnetic field and a time dependent electric field in the probe approximation. We explicitly solve the PDEs by means of pseudospectral methods in spatial and time directions and study the transition to an universal "fast" quench response. Moreover, we compute the amplitudes, i.e.,~residues of the quasi normal modes, by solving the (ODE) Laplace transformed equations. We investigate the possibility of considering the asymptotic growth rate of the amplitudes as a well defined notion of initial time scale for linearized systems. Finally, we highlight the existence of Landau level resonances in the electrical conductivity parallel to a magnetic field at finite frequency and show explicitly that these only appear in presence of the anomaly. We show that the existence of these resonances induces, among others, a long-lived AC electric current once the electric field is switched off.
description: 34 pages, 10 figures
Theodor Fontane's Unterm Birnbaum : an analysis of irrational and rational elements
Creators: name: Meyer, Charles
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Retrieving information from a black hole using quantum machine learning
Creators: name: Leone, Lorenzo
name: Oliviero, Salvatore F. E.
name: Piemontese, Stefano
name: True, Sarah
name: Hamma, Alioscia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a seminal paper[JHEP09(2007)120], Hayden and Preskill showed that information can be retrieved from a black hole that is sufficiently scrambling, assuming that the retriever has perfect control of the emitted Hawking radiation and perfect knowledge of the internal dynamics of the black hole. In this paper, we show that for $t-$doped Clifford black holes - that is, black holes modeled by random Clifford circuits doped with an amount $t$ of non-Clifford resources - an information retrieval decoder can be learned with fidelity scaling as $\exp(-αt)$ using quantum machine learning while having access only to out-of-time-order correlation functions. We show that the crossover between learnability and non-learnability is driven by the amount of non-stabilizerness present in the black hole and sketch a different approach to quantum complexity.
Tidal disruption events from supermassive black hole binaries
Creators: name: Coughlin, Eric R.
name: Armitage, Philip J.
name: Nixon, Chris
name: Begelman, Mitchell C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate the pre-disruption gravitational dynamics and post-disruption hydrodynamics of the tidal disruption of stars by supermassive black hole (SMBH) binaries. We focus on binaries with relatively low mass primaries ($10^6M_{\odot}$), moderate mass ratios, and separations with reasonably long gravitational wave inspiral times (tens of Myr). First, we generate a large ensemble (between 1 and 10 million) of restricted three-body integrations to quantify the statistical properties of tidal disruptions by circular SMBH binaries of initially-unbound stars. Compared to the reference case of a disruption by a single SMBH, the binary potential induces significant variance into the specific energy and angular momentum of the star at the point of disruption. Second, we use Newtonian numerical hydrodynamics to study the detailed evolution of the fallback debris from 120 disruptions randomly selected from the three-body ensemble (excluding only the most deeply penetrating encounters). We find that the overall morphology of the debris is greatly altered by the presence of the second black hole, and the accretion rate histories display a wide range of behaviors, including order of magnitude dips and excesses relative to control simulations that include only one black hole. Complex evolution persists, in some cases, for many orbital periods of the binary. We find evidence for power in the accretion curves on timescales related to the binary orbital period, though there is no exact periodicity. We discuss our results in the context of future wide-field surveys, and comment on the prospects of identifying and characterizing the subset of events occurring in nuclei with binary SMBHs.
description: 31 pages, 25 figures, MNRAS Accepted; updated to incorporate referee comments. Movies of simulations can be found here: http://w.astro.berkeley.edu/~eric_coughlin/movies.html
(202263) Henry Coles Henley
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.
The changing image of Theodore Roosevelt : a study in the secularization of historical writing
Creators: name: Crean, David R. .
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Factors affecting profitability of insurance companies in Ethiopia
Creators: name: Sisay, Horsa
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Insurance is one of the major risks mitigating mechanism in modern economy. The existence and survival of financially strong insurance companies is therefore inevitable. For insurers to be reliable and financially sound, their profitability and most importantly knowing what factors makes them profitable is very crucial objective. In order to achieve this objective, this study used quantitative research approach using Panel data covering ten-year period from 2009–2018 for nine insurance companies. The study used linear regression model to see the effect of independent variables, which were the factors under study, on dependent variable profitability peroxide by ROA. Data was analyzed with software Eviws8.The findings of the study showed that market share and managerial efficiency have statistically significant relationship with insurers' profitability, and liquidity is positively less significant relationship with profitability. Whereas the Volume of capital, inflation and GDP are significantly negative with profitability and size, liquidity, leverage and growth rate are negative but insignificant relationship with profitability. The study provides evidence that company volume of capital, market share, managerial efficiency, and inflation and GDP are important factors affecting profitability of insurance companies in Ethiopia. Therefore, the study recommends that Ethiopian insurance companies should give due consideration to these factors to address profitability issues.
On the Quantization of Length in Noncommutative Spaces
Creators: name: Muthukumar, B.
name: Rashid, Aamir
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider canonical/Weyl-Moyal type noncommutative (NC) spaces with rectilinear coordinates. Motivated by the analogy of the formalism of the quantum mechanical harmonic oscillator problem in quantum phase-space with that of the canonical-type NC 2-D space, and noting that the square of length in the latter case is analogous to the Hamiltonian in the former case, we arrive at the conclusion that the length and area are quantized in such an NC space, if the area is expressed entirely in terms of length. We extend our analysis to 3-D case and formulate a ladder operator approach to the quantization of length in 3-D space. However, our method does not lend itself to the quantization of spacetime length in 1+1 and 2+1 Minkowski spacetimes if the noncommutativity between time and space is considered. If time is taken to commute with spatial coordinates and the noncommutativity is maintained only among the spatial coordinates in 2+1 and 3+1 dimensional spacetime, then the quantization of spatial length is possible in our approach.
description: 9 pages, minor changes, version accepted for publication in Advances in High Energy Physics
Non-Unitarity, sterile neutrinos, and Non-Standard neutrino Interactions
Creators: name: Blennow, Mattias
name: Coloma, Pilar
name: Fernandez-Martinez, Enrique
name: Hernandez-Garcia, Josu
name: Lopez-Pavon, Jacobo
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The simplest Standard Model extension to explain neutrino masses involves the addition of right-handed neutrinos. At some level, this extension will impact neutrino oscillation searches. In this work we explore the differences and similarities between the case in which these neutrinos are kinematically accessible (sterile neutrinos) or not (mixing matrix non-unitarity). We clarify apparent inconsistencies in the present literature when using different parametrizations to describe these effects and recast both limits in the popular neutrino non-standard interaction (NSI) formalism. We find that, in the limit in which sterile oscillations are averaged out at the near detector, their effects at the far detector coincide with non-unitarity at leading order, even in presence of a matter potential. We also summarize the present bounds existing in both limits and compare them with the expected sensitivities of near future facilities taking the DUNE proposal as a benchmark. We conclude that non-unitarity effects are too constrained to impact present or near future neutrino oscillation facilities but that sterile neutrinos can play an important role at long baseline experiments. The role of the near detector is also discussed in detail.
description: 19 pages, 2 figures: minor changes and references added, version published in JHEP
Towards laboratory detection of topological vortices in superfluid phases of QCD
Creators: name: Das, Arpan
name: Dave, Shreyansh S.
name: De, Somnath
name: Srivastava, Ajit M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Topological defects arise in a variety of systems, e.g. vortices in superfluid helium to cosmic strings in the early universe. There is an indirect evidence of neutron superfluid vortices from glitches in pulsars. One also expects that topological defects may arise in various high baryon density phases of quantum chromodynamics (QCD), e.g. superfluid topological vortices in the color flavor locked (CFL) phase. Though vastly different in energy/length scales, there are universal features, e.g. in the formation of all these defects. Utilizing this universality, we investigate the possibility of detecting these topological superfluid vortices in laboratory experiments, namely heavy-ion collisions. Using hydrodynamic simulations, we show that vortices can qualitatively affect the power spectrum of flow fluctuations. This can give unambiguous signal for superfluid transition resulting in vortices, allowing for check of defect formation theories in a relativistic quantum field theory system, and the detection of superfluid phases of QCD. Detection of nucleonic superfluid vortices in low energy heavy-ion collisions will give opportunity for laboratory controlled study of their properties, providing crucial inputs for the physics of pulsars.
description: 6 pages, 3 figures, published version
(202265) Florence Charrington
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.
Magnetic field dependence of excitations near spin-orbital quantum criticality
Creators: name: Biffin, A.
name: Rüegg, Ch.
name: Embs, J.
name: Guidi, T.
name: Loidl, A.
name: Tsurkan, V.
name: Coldea, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The spinel FeSc$_2$S$_4$ has been proposed to realize a near-critical spin-orbital singlet (SOS) state, where entangled spin and orbital moments fluctuate in a global singlet state on the verge of spin and orbital order. Here we report powder inelastic neutron scattering measurements that observe the full bandwidth of magnetic excitations and we find that spin-orbital triplon excitations of an SOS state can capture well key aspects of the spectrum in both zero and applied magnetic fields up to 8.5 T. The observed shift of low-energy spectral weight to higher energies upon increasing applied field is naturally explained by the entangled spin-orbital character of the magnetic states, a behavior that is in strong contrast to spin-only singlet ground state systems, where the spin gap decreases upon increasing applied field.
description: 13 pages, 8 figures. Revised version now matches published manuscript
Quasinormal modes and thermodynamic properties of GUP-corrected Schwarzschild black hole surrounded by quintessence
Creators: name: Karmakar, Ronit
name: Gogoi, Dhruba Jyoti
name: Goswami, Umananda Dev
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the Quasinormal Modes (QNMs) of the Schwarzschild black hole surrounded by a quintessence field after implementing the quantum corrections to its solution as required by the Generalised Uncertainty Principle (GUP). We analyse the dependence of the QNMs on the deformation parameters of GUP as well as on the quintessence parameter. In most cases the QNMs show the appreciable dependency on these parameters. For a better idea of the accuracy of calculations of QNMs, we compare the results of the QNMs obtained via Mashhoon method with the 6th order WKB method. A good agreement between these two methods of QNM calculations is seen depending on the different factors. Further, we study the thermodynamic properties of the GUP-corrected Schwarzschild black hole and check for any dependence with the deformation parameters and the quintessence parameter. In particular, we compute the Hawking temperature, heat capacity and entropy for the black hole and analyse the results graphically to show the dependency of the thermodynamic properties on the said parameters. We have seen that the thermodynamic properties of black holes also depend noticeably on the model parameters in most cases. Black hole remnants have been studied and it is shown that the possible existence of remnant radius as well as remnant temperature depends on the deformations introduced. However, it is observed that the GUP-corrected black hole constructed here can not become a remnant.
description: 17 pages, 9 figures. Published version
PhaTYP: Predicting the lifestyle for bacteriophages using BERT
Creators: name: Shang, Jiayu
name: Tang, Xubo
name: Sun, Yanni
Publisher: name: arXiv
Year: 2022
Subjects: subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: Bacteriophages (or phages), which infect bacteria, have two distinct lifestyles: virulent and temperate. Predicting the lifestyle of phages helps decipher their interactions with their bacterial hosts, aiding phages' applications in fields such as phage therapy. Because experimental methods for annotating the lifestyle of phages cannot keep pace with the fast accumulation of sequenced phages, computational method for predicting phages' lifestyles has become an attractive alternative. Despite some promising results, computational lifestyle prediction remains difficult because of the limited known annotations and the sheer amount of sequenced phage contigs assembled from metagenomic data. In particular, most of the existing tools cannot precisely predict phages' lifestyles for short contigs. In this work, we develop PhaTYP (Phage TYPe prediction tool) to improve the accuracy of lifestyle prediction on short contigs. We design two different training tasks, self-supervised and fine-tuning tasks, to overcome lifestyle prediction difficulties. We rigorously tested and compared PhaTYP with four state-of-the-art methods: DeePhage, PHACTS, PhagePred, and BACPHLIP. The experimental results show that PhaTYP outperforms all these methods and achieves more stable performance on short contigs. In addition, we demonstrated the utility of PhaTYP for analyzing the phage lifestyle on human neonates' gut data. This application shows that PhaTYP is a useful means for studying phages in metagenomic data and helps extend our understanding of microbial communities.
description: 16 pages, 11 figures
Planejamento inteligente e discreto de um time de robôs baseado em computação bio-inspirada
Creators: name: Bernardes, Victor Hugo Xavier
name: Araújo Lima, Danielli
Publisher: name: figshare
Year: 2022
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences
subject: 91007 Manufacturing Robotics and Mechatronics (excl. Automotive Mechatronics)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 90602 Control Systems, Robotics and Automation

description: Os robôs enquanto exercem suas tarefas podem encontrar situações que lidem com eventos aleatórios, o seu desempenho, portanto depende de sua capacidade de aprendizagem e adaptação. Sendo necessário ajustar-se constantemente as novas situações impostas, diversas abordagens são utilizadas para que os mesmos possam se sobressair nessas ocasiões, uma das mais interessantes tem inspiração em sistemas biológicos e mecanismos naturais para assim aproveitar de como a natureza encontra engenhosas soluções. Usando de autômatos celulares que utilizam noções de Algoritmos Genéticos (Ags) e Otimização por Colônia de Formigas (ACO) para então colocá-los numa matriz bidimensional permitindo que explorem o máximo possível o ambiente num dado tempo. Torna-se evidente como tais técnicas facilitam no desenvolvimento e desenrolar da atividade uma vez que adicionando o conceito de feromônio tal como as formigas usam pode-se montar formas de incentivar uma maior exploração do ambiente. A princípio será feito um estudo para a elaboração do programa inicial. Os robôs implementados com a Otimização por colônia de formigas (ACO), serão colocados em uma determinada área e para vasculhar a presença de objetos e realizar a captura do mesmo, e encaminhá-lo a um ninho, ou seja um local onde possa ser depositado o objeto capturado. O processo será realizado até conseguirem encontrar o caminho mais curto do ninho até o objeto e vice-versa, sendo que a grande maioria deles deverão apresentar esse padrão de comportamento. O projeto ainda se encontra em fase de desenvolvimento, onde a programação ainda deve ser melhorada para funcionar adequadamente. O feromônio a ser utilizado na programação necessita de ajustes e melhorias para ter um melhor desempenho do time de robôs.
Smooth magnetogenesis
Creators: name: Campanelli, L.
name: Marrone, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the Ratra scenario of inflationary magnetogenesis, the kinematic coupling between the photon and the inflaton undergoes a nonanalytical jump at the end of inflation. Using smooth interpolating analytical forms of the coupling function, we show that such unphysical jump does not invalidate the main prediction of the model, which still represents a viable mechanism for explaining cosmic magnetization. Nevertheless, there is a spurious result associated with the nonanaliticity of the coupling, to wit, the prediction that the spectrum of created photons has a power-law decay in the ultraviolet regime. This issue is discussed using both semiclassical approximation and smooth coupling functions.
description: 9 pages, 5 figures, typos corrected, references updated, version matching the published one