cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonlocal Particles as Strings
Creators: name: Cheng, Tai-Chung
name: Ho, Pei-Ming
name: Lee, Tze-Kei
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find nonlocal particle theories with two dimensional conformal symmetry, including examples equivalent to the bosonic open string and closed string. This work provides a new approach to construct solvable consistent backgrounds in string theory.
description: 25 pages, Latex, minor changes
Under Development: Stories of Children and NGOs in Delhi, India
Creators: name: McCarthy, Annie
Publisher: name: Canberra, ACT : The Australian National University
Year: 2016
Subjects: Childhood
Development
India
Narrative
NGOs
Ethnography

description: Stories of and by marginalised children in development programs circulate widely in contemporary mediascapes. Beyond these stories and images, which typically depict narratives of victimisation, or of agency against the odds, very little can be gleaned of these children’s lives or their relationship to the development programs they attend. This thesis, based on fieldwork among children who live in four slums in Delhi, India, explores the way children engaged with the programs of a media NGO (non-government organisation). The main focus of this organisation was the training of children in the production of certain kinds of developmental messages and methods of self-expression, and it is this focus that I examine in this thesis. Alongside my ethnographic observations of children’s participation in these NGO classes and campaigns, the ethnography is enriched with a careful reading of children’s performances, stories and drawings produced in the course of these classes. Rather than view such activities as instrumental or demonstrative of children’s participation in NGO schemes, I argue that our understanding of children’s lived experience of development can be ‘thickened’ through a reading of texts and performances that these children produce in NGO spaces. Such considerations allow for a much richer appreciation of the development discourse and the way it is deployed in the NGO space, by children and NGO workers. The children I worked with entered the NGO spaces already tagged as ‘underdeveloped’ slum children. It was expected that in the space of these NGO’s and ‘under’ the principles and theories of development, the children could improve their futures and those of their communities. While frequently performing or enacting this category of the 'underdeveloped child', the children also displayed a keen sense of the development discourse. As such, they were able to skilfully and instrumentally employ a range of positions, from innocent victims to conscious agents, to subvert, disrupt or co-opt the development categories that framed their lives. The kinds of performances and narratives children produced in NGO spaces that I discuss in this thesis cover a range of key issues such as hygiene, marriage and gender violence. They all point to a pragmatic, playful, opportunistic and ultimately personal approach to development. I have tried to represent this in this thesis both textually and visually, using images and photoessays to compliment my written material.
Modeling of 35-day superorbital cycle of $B$ and $V$ light curves of IMXB HZ Her/Her X-1
Creators: name: Kolesnikov, D. A.
name: Shakura, N. I.
name: Postnov, K. A.
name: Volkov, I. M.
name: Bikmaev, I. F.
name: Irsmambetova, T. R.
name: Staubert, R.
name: Wilms, J.
name: Irtuganov, E.
name: Golyshev, P. Yu.
name: Shugarov, S. Yu.
name: Nikolenko, I. V.
name: Trunkovsky, E. M.
name: Schönherr, G.
name: Schwope, A.
name: Klochkov, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The X-ray binary Her X-1 consists of an accreting neutron star and the optical component HZ Her. The 35-day X-ray superorbital variability of this system is known since its discovery in 1972 by the Uhuru satellite and is believed to be caused by forced precession of a warped accretion disk tilted to the orbital plane. We argue that the observed features of the 35-day optical variability of HZ Her can be explained by free precession of the neutron star with a period close to that of the forced disk. The model parameters include a) the X-ray luminosity of the neutron star; b) the optical flux from the accretion disk; c) the tilt of the inner and outer edges of the accretion disk. A possible synchronization mechanism based on the coupling between the neutron star free precession and the dynamical action of non-stationary gas streams is discussed.
description: 12 pages, 11 figures, accepted for publication in Monthly Notices of the Royal Astronomical Society Main Journal
Letter from John McRae (Royal Bank Vernon) to Frank Hewer, February 25, 1908
Creators: name: MacRae, John
Publisher: name: The University of British Columbia
Year: 2017

description: One letter to Frank Hewer from John McRae, manager of the Royal Bank in Vernon (B.C.), dated February 25, 1908, regarding the acknowledgement of a favour and plan to meet with McAllister.
title: Detection of cognitive process during differentiating task with electroencephalography
title: Detection of cognitive process during differentiating task with EEG
titleType: AlternativeTitle
Creators: name: V{U00F5}, T{U00E2}N Quang (Chief Editor)
Publisher: name: The Australian National University
Year: 2018
Subjects: subject: BF311.V6 2012
subject: Electroencephalography
subject: Cognition Measurement
subject: Machine learning

description: Human beings notice differences in their environment and make explicit and implicit differentiations between events and activities. These are very intuitive activities that humans perform on regular basis, studying the cognitive processes behind them will help gain more knowledge on mental tasks, opening up possibilities for better brain-computer interaction (BCI) mechanisms in the future. In this study, these cognitive processes were measured using a non-invasive brain measuring method, Electroencephalography (EEG) as well as a behavioural measure (eye gaze path). Separate experiments were carried out to examine both scenarios of explicit (voluntary) and implicit (involuntary) differentiations. Using a combination of machine learning tools for signal analysis, a high correct rate of classification results in combination with significant statistical figures achieved has shown that one can effectively identify those mental tasks from studying the brainwave and eye gaze measurements. - provided by Candidate.
Exchange-striction driven ultrafast nonthermal lattice dynamics in NiO
Creators: name: Windsor, Y. W.
name: Zahn, D.
name: Kamrla, R.
name: Feldl, J.
name: Seiler, H.
name: Chiang, C. -T.
name: Ramsteiner, M.
name: Widdra, W.
name: Ernstorfer, R.
name: Rettig, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We use femtosecond electron diffraction to study ultrafast lattice dynamics in the highly correlated antiferromagnetic (AF) semiconductor NiO. Using the scattering vector (Q) dependence of Bragg diffraction, we introduce a Q-resolved effective lattice temperature, and identify a nonthermal lattice state with preferential displacement of O compared to Ni ions, which occurs within ~0.3 ps and persists for 25 ps. We associate this with transient changes to the AF exchange striction-induced lattice distortion, supported by the observation of a transient Q-asymmetry of Friedel pairs. Our observation highlights the role of spin-lattice coupling in routes towards ultrafast control of spin order.
description: Manuscript and supplement combined in one file
Two geometrically frustrated magnets studied by neutron diffraction
Creators: name: Mirebeau, I.
name: Apetrei, A.
name: Goncharenko, I. N.
name: Moessner, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In the pyrochlore compounds, Tb$_2$Ti$_2$O$_7$ and Tb$_2$Sn$_2$O$_7$, only the Tb$^{3+}$ ions are magnetic. They exhibit quite abnormal -- and, in view of their chemical similarity, strikingly different -- magnetic behaviour, as probed by neutron diffraction at ambient and applied pressure. Tb$_2$Ti$_2$O$_7$ is a cooperative paramagnet (`spin liquid'), without long range order at ambient pressure; however, it does become ordered under pressure. By contrast, Tb$_2$Sn$_2$O$_7$ enters an "ordered spin ice" state already at ambient pressure. We analyse a simple model which already clearly exhibits some of the qualitative features observed experimentally. Overall, comparing these two compounds emphasizes the power of small perturbations in selecting low-temperature states in geometrically frustrated systems.
description: 6 pages, 4 figures, International Conference on Neutron Scattering Sydney(2005)
Gaussian Process Modelling for Improved Resolution in Faraday Depth Reconstruction
Creators: name: Ndiritu, S. W.
name: Scaife, A. M. M.
name: Tabb, D. L.
name: Carcamo, M.
name: Hanson, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The incomplete sampling of data in complex polarization measurements from radio telescopes negatively affects both the rotation measure (RM) transfer function and the Faraday depth spectra derived from these data. Such gaps in polarization data are mostly caused by flagging of radio frequency interference and their effects worsen as the percentage of missing data increases. In this paper we present a novel method for inferring missing polarization data based on Gaussian processes (GPs). Gaussian processes are stochastic processes that enable us to encode prior knowledge in our models. They also provide a comprehensive way of incorporating and quantifying uncertainties in regression modelling. In addition to providing non-parametric model estimates for missing values, we also demonstrate that Gaussian process modelling can be used for recovering rotation measure values directly from complex polarization data, and that inferring missing polarization data using this probabilistic method improves the resolution of reconstructed Faraday depth spectra.
description: 16 pages, 10 figures, submitted to MNRAS
Practice-led research into ways the museum is explored as a house of wonder in contemporary sculpture
Creators: name: Simpson, Sally Robyn
Publisher: name: The Australian National University
Year: 2012
Subjects: subject: Sculpture, Modern 20th century
subject: Artists and museums
subject: Ecology in art

description: The contemporary ecological debate embodies diverse opinions reflecting the complexity of information available. The museum has recorded the history of human-nature relations, and has influenced ways in which meaning has been assigned to nature. Its influence over the interpretation of objects has been critiqued by 20th century artists and postmodern theorists. However, the museum also continues to engage and inspire some artists, and this research uncovers reasons for this. This research investigates the ways in which contemporary sculpture can employ museum aesthetics to draw attention to flexible and uncertain meaning regarding ecological issues. It is undertaken in two parts. The first, the studio work with an exegesis of 8,000 words, investigates two particular sites and applies museum methodology to sculptures inspired by those environments. The work is supported by a dissertation of 18,000 words researching the work of Mark Dion and Fiona Hall. Both of these artists appropriate museum aesthetics in order to demonstrate that meaning is flexible and engage the viewer in the interpretive process. The studio research culminates in two bodies of work related to the two sites chosen, using the aesthetics of cultural artefacts, natural specimens, and skeleton galleries found in museums of natural history and ethnography. The form and materiality of these objects intends to defy didactic interpretation. The dissertation reveals that, as a result of its history, the museum is a house of wonder and mystery. The examination of Dion's and Hall's works demonstrates their use of postmodern strategies to both challenge the museum and exploit its potential as a house of wonder, and ultimately to engage the viewer's curiosity and active interpretation.
description: Vol.1: Dissertation -- vol.2: Exegesis.
Real-World Cooking Robot System from Recipes Based on Food State Recognition Using Foundation Models and PDDL
Creators: name: Kanazawa, Naoaki
name: Kawaharazuka, Kento
name: Obinata, Yoshiki
name: Okada, Kei
name: Inaba, Masayuki
Publisher: name: arXiv
Year: 2024
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Although there is a growing demand for cooking behaviours as one of the expected tasks for robots, a series of cooking behaviours based on new recipe descriptions by robots in the real world has not yet been realised. In this study, we propose a robot system that integrates real-world executable robot cooking behaviour planning using the Large Language Model (LLM) and classical planning of PDDL descriptions, and food ingredient state recognition learning from a small number of data using the Vision-Language model (VLM). We succeeded in experiments in which PR2, a dual-armed wheeled robot, performed cooking from arranged new recipes in a real-world environment, and confirmed the effectiveness of the proposed system.
description: Accepted at Advanced Robotics, website - https://kanazawanaoaki.github.io/cook-from-recipe-pddl/
On super quantum discord for high-dimensional bipartite state
Creators: name: Zhou, Jianming
name: Hu, Xiaoli
name: Jing, Naihuan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: By quantifying the difference between quantum mutual information through weak measurement performed on a subsystem one is led to the notion of super quantum discord. The super version is also known to be difficult to compute as the quantum discord which was captured by the projective (strong) measurements. In this paper, we give effective bounds of the super quantum discord with or without phase damping channels for higher-dimensional bipartite quantum states, and found that the super version is always larger than the usual quantum discord as in the 2-dimensional case.
description: resubmit the source files
Two-dimensional Particle-in-Cell simulations of axisymmetric black hole magnetospheres
Creators: name: Hirotani, Kouichi
name: Krasnopolsky, Ruben
name: Shang, Hsien
name: Nishikawa, Ken-ichi
name: Watson, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the temporal evolution of an axisymmetric magnetosphere around a rapidly rotating, stellar-mass black hole, applying a two-dimensional particle-in-cell simulation scheme. Adopting a homogeneous pair production, and assuming that the mass accretion rate is much less than the Eddington limit, we find that the black hole's rotational energy is preferentially extracted from the middle latitudes, and that this outward energy flux exhibits an enhancement that lasts approximately 160 dynamical time scales. It is demonstrated that the magnetohydrodynamic approximations cannot be justified in such a magnetically-dominated magnetosphere, because the Ohm's law completely breaks down, and because the charge-separated electron-positron plasmas are highly non-neutral. An implication is given regarding the collimation of relativistic jets.
description: 32 pages, 12 figures; accepted for publication in ApJ
Michel Foucault and the critique of psychiatry
Creators: name: Ninnis, Drew
Publisher: name: The Australian National University
Year: 2012
Subjects: subject: RC437.5.N56 2012
subject: Foucault, Michel, 1926-1984
subject: Philosophy, French 20th century
subject: Psychiatry Philosophy

description: This thesis argues that a metaphysical unease pervades the project of psychiatry, and that a philosophically fruitful way of examining this unease is through the work of Michel Foucault. My claim is that in highlighting the critique of certain philosophies of the human sciences that Foucault maintains throughout his work, we can come to a comprehensive understanding of the open philosophical questions that rest at the heart of any contemporary psychiatric project. In the first part of this thesis, I argue that there are three essential epistemic problems, implicitly highlighted by Foucault, that form the grounds on which a psychiatric knowledge is built. These are the "subjectivity problem," the "separation problem," and the "conceptual problem." In the second part of this thesis, I argue that these epistemological problems have ontological, political, and ethical consequences. Ontological problems for psychiatry arise when I interrogate the techniques and technologies that give psychiatry an empirical foundation, as well as the manner in which they target life through creating bodies and modes of being. Political problems arise for psychiatry when individuals question the nature of their diagnosis, and the manner in which it identifies them. Ethical problems arise from the manner in which psychiatric diagnoses function within our political and juridical systems and is one of central concern to psychiatry and its patients, yet a dimension that is elided in many conceptualisations of the role and function of psychiatry. This thesis reaches three key conclusions. Firstly, that psychiatry is a discourse and discipline that is wider than the parts of it that function as a science, and that trying to conceptualise the nature of the whole through the scientific idealisation of its parts is unhelpful. Secondly, that psychiatric knowledge cannot be separated from its practice, or the other roles and functions that psychiatry performs within our society. Thirdly, that psychiatry can have no fixed nature or utopian state, and that there are essential compromises involved in the way in which we choose to conceptualise it as a form of knowledge and as a social practice. Fixing the nature of psychiatry as scientific or otherwise threatens to place the fundamental philosophical questions of epistemology, ontology, politics, or ethics beyond further argument or consideration and close off broader discussion. My contention is that the work of Foucault assists us in clearing a space for new images of psychiatry and, more importantly, its broader discussion within our communities.
CPFD: Confidence-aware Privileged Feature Distillation for Short Video Classification
Creators: name: Shi, Jinghao
name: Shen, Xiang
name: Zhao, Kaili
name: Wang, Xuedong
name: Wen, Vera
name: Wang, Zixuan
name: Wu, Yifan
name: Zhang, Zhixin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Dense features, customized for different business scenarios, are essential in short video classification. However, their complexity, specific adaptation requirements, and high computational costs make them resource-intensive and less accessible during online inference. Consequently, these dense features are categorized as `Privileged Dense Features'.Meanwhile, end-to-end multi-modal models have shown promising results in numerous computer vision tasks. In industrial applications, prioritizing end-to-end multi-modal features, can enhance efficiency but often leads to the loss of valuable information from historical privileged dense features. To integrate both features while maintaining efficiency and manageable resource costs, we present Confidence-aware Privileged Feature Distillation (CPFD), which empowers features of an end-to-end multi-modal model by adaptively distilling privileged features during training. Unlike existing privileged feature distillation (PFD) methods, which apply uniform weights to all instances during distillation, potentially causing unstable performance across different business scenarios and a notable performance gap between teacher model (Dense Feature enhanced multimodal-model DF-X-VLM) and student model (multimodal-model only X-VLM), our CPFD leverages confidence scores derived from the teacher model to adaptively mitigate the performance variance with the student model. We conducted extensive offline experiments on five diverse tasks demonstrating that CPFD improves the video classification F1 score by 6.76% compared with end-to-end multimodal-model (X-VLM) and by 2.31% with vanilla PFD on-average. And it reduces the performance gap by 84.6% and achieves results comparable to teacher model DF-X-VLM. The effectiveness of CPFD is further substantiated by online experiments, and our framework has been deployed in production systems for over a dozen models.
description: Camera ready for CIKM 2024
$XY$-VBS phase boundary for the square-lattice $J_1$-$J_2$ $XXZ$ model with the ring exchange
Creators: name: Nishiyama, Yoshihiro
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The square-lattice $J_1$-$J_2$ $XXZ$ model with the ring-exchange interaction $K$ was investigated numerically. As for the hard-core-boson model with the nearest-neighbor hopping $J_1/2$, namely, the $J_1$-$K$ $XY$ model, it has been reported that the ring exchange leads to a variety of exotic phases such as the valence-bond-solid (VBS) phase. In this paper, we extend the parameter space in order to investigate the phase boundary between the $XY$ (superfluid) and VBS phases. A notable feature is that the phase boundary terminates at the fully-frustrated point, $J_2/J_1 \to 0.5^-$. As a scaling parameter for the multi-criticality, the distance from the multi-critical point $δ(\ge 0)$ is introduced. In order to detect the phase transition, we employed the high-order fidelity susceptibility $χ^{(3)}_F$, which is readily evaluated via the exact-diagonalization scheme. As a demonstration, for a fixed value of $δ$, the $XY$-VBS criticality was analyzed by the probe $χ^{(3)}_F$. Thereby, with properly scaling $δ$, the $χ^{(3)}_F$ data were cast into the crossover-scaling formula to determine the multi-criticality.
SCUNet++: Swin-UNet and CNN Bottleneck Hybrid Architecture with Multi-Fusion Dense Skip Connection for Pulmonary Embolism CT Image Segmentation
Creators: name: Chen, Yifei
name: Zou, Binfeng
name: Guo, Zhaoxin
name: Huang, Yiyu
name: Huang, Yifan
name: Qin, Feiwei
name: Li, Qinhai
name: Wang, Changmiao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Pulmonary embolism (PE) is a prevalent lung disease that can lead to right ventricular hypertrophy and failure in severe cases, ranking second in severity only to myocardial infarction and sudden death. Pulmonary artery CT angiography (CTPA) is a widely used diagnostic method for PE. However, PE detection presents challenges in clinical practice due to limitations in imaging technology. CTPA can produce noises similar to PE, making confirmation of its presence time-consuming and prone to overdiagnosis. Nevertheless, the traditional segmentation method of PE can not fully consider the hierarchical structure of features, local and global spatial features of PE CT images. In this paper, we propose an automatic PE segmentation method called SCUNet++ (Swin Conv UNet++). This method incorporates multiple fusion dense skip connections between the encoder and decoder, utilizing the Swin Transformer as the encoder. And fuses features of different scales in the decoder subnetwork to compensate for spatial information loss caused by the inevitable downsampling in Swin-UNet or other state-of-the-art methods, effectively solving the above problem. We provide a theoretical analysis of this method in detail and validate it on publicly available PE CT image datasets FUMPE and CAD-PE. The experimental results indicate that our proposed method achieved a Dice similarity coefficient (DSC) of 83.47% and a Hausdorff distance 95th percentile (HD95) of 3.83 on the FUMPE dataset, as well as a DSC of 83.42% and an HD95 of 5.10 on the CAD-PE dataset. These findings demonstrate that our method exhibits strong performance in PE segmentation tasks, potentially enhancing the accuracy of automatic segmentation of PE and providing a powerful diagnostic tool for clinical physicians. Our source code and new FUMPE dataset are available at https://github.com/JustlfC03/SCUNet-plusplus.
description: 10 pages, 7 figures, accept WACV2024
Low-loss coupling to sub-micron thick deposited film rib and nanowire waveguides by vertical tapering
Creators: name: Jin, Zhe
Publisher: name: The Australian National University
Year: 2018
Subjects: subject: QC661.J56 2012
subject: Wave guides
subject: Nanowires
subject: Integrated optics

description: The main purpose of this thesis is to present work towards theoretical and experimental characterization of a vertical taper-based spot size converter to increase the coupling efficiency between a single-mode fibre and rib and nanowire waveguides. Simulations of taper design parameters have been investigated in this thesis and optimised designs established for coupling to high numerical aperture fibres. These have then been experimentally implemented, and the techniques and fabrication processes have been discussed in detail. The experimental measurements of the finished devices are presented and analysis undertaken to determine areas for future improvement.
Fixed Inducing Points Online Bayesian Calibration for Computer Models with an Application to a Scale-Resolving CFD Simulation
Creators: name: Duan, Yu
name: Eaton, Matthew
name: Bluck, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: This paper proposes a novel fixed inducing points online Bayesian calibration (FIPO-BC) algorithm to efficiently learn the model parameters using a benchmark database. The standard Bayesian calibration (STD-BC) algorithm provides a statistical method to calibrate the parameters of computationally expensive models. However, the STD-BC algorithm scales very badly with the number of data points and lacks online learning capability. The proposed FIPO-BC algorithm greatly improves the computational efficiency and enables the online calibration by executing the calibration on a set of predefined inducing points. To demonstrate the procedure of the FIPO-BC algorithm, two tests are performed, finding the optimal value and exploring the posterior distribution of 1) the parameter in a simple function, and 2) the high-wave number damping factor in a scale-resolving turbulence model (SAS-SST). The results (such as the calibrated model parameter and its posterior distribution) of FIPO-BC with different inducing points are compared to those of STD-BC. It is found that FIPO-BC and STD-BC can provide very similar results, once the predefined set of inducing point in FIPO-BC is sufficiently fine. But, the FIPO-BC algorithm is at least ten times faster than the STD-BC algorithm. Meanwhile, the online feature of the FIPO-BC allows continuous updating of the calibration outputs and potentially reduces the workload on generating the database.
A laboratory and field study
on cyclic liquefaction of a pyroclastic soil
Creators: name: Licata, Valeria
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2015

description: The main objective of the thesis is the analysis of the liquefaction potential of a typical pyroclastic soil, under both cyclic laboratory tests and seismic actions expected during strong-motion earthquakes.
The particular choice of volcanic soils was addressed by the peculiar interest for such soils in the Campania region, widely covered by this kind of materials, which affect significantly the stability of the territory versus both seismic and hydrologic extreme events.
Effects of Bulk Mass in Gauge-Higgs Unification
Creators: name: Maru, Nobuhito
name: Takenaga, Kazunori
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study effects of bulk mass on electroweak symmetry breaking and Higgs mass in the scenario of five dimensional SU(3) gauge-Higgs unification defined on M^4\times S^1/Z_2. The asymptotic form of effective potential for the Higgs field is obtained, from which a transparent and useful expression for the Higgs mass is found. The small vacuum expectation values (VEV) for Higgs field can be realized by choosing bulk mass parameters approriately for a fixed set of matter content. The bulk mass for periodic fermion field, in general, has effects to make the Higgs mass less heavy. On the other hand, the bulk mass for antiperiodic field does not directly affect the Higgs mass, but it contributes to increase or decrease the Higgs mass, depending on how small the VEV is induced due to the antiperiodic field. We give numerical examples to confirm these effects, in which the role of the bulk mass is also definitely clear.
description: 14 pages, no figures, (v2)typos and errors corrected, (v3)the final version to appear in PLB
Mechatronics design of a robotic systems
Creators: name: Buonocore, Luca Rosario
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2015

description: The same coordination aspects are the key-points of the last proposed method about comunication: now, the robotic device have to cooperate in order to manage the object in the desired way with a good sensitivity and this can be done exploiting the torque end force sensor of the new system.
A general introduction underlining the need to make a robot autonomous or at least able to operate in unstructured scenarios to cope with human end other robotic device.
Project of ultralight robot arm for aerial manipulation whit simulations and experiments.
Proposed robot manipulator framework in order to exploit the interaction robot-robot, redundancy management for dexterity scopes. Simulations are presented to validate the proposed hardware. And exploit the problematic of the comunication and control of the multiple platform. Simulations are presented to validate the proposed approach.
Variable energy flux in turbulence
Creators: name: Verma, Mahendra K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In three-dimensional hydrodynamic turbulence forced at large length scales, a constant energy flux $ Π_u $ flows from large scales to intermediate scales, and then to small scales. It is well known that for multiscale energy injection and dissipation, the energy flux $Π_u$ varies with scales. In this review we describe this principle and show how this general framework is useful for describing a variety of turbulent phenomena. Compared to Kolmogorov's spectrum, the energy spectrum steepens in turbulence involving quasi-static magnetofluid, Ekman friction, stable stratification, magnetohydrodynamics, and solution with dilute polymer. However, in turbulent thermal convection, in unstably stratified turbulence such as Rayleigh-Taylor turbulence, and in shear turbulence, the energy spectrum has an opposite behaviour due to an increase of energy flux with wavenumber. In addition, we briefly describe the role of variable energy flux in quantum turbulence, in binary-fluid turbulence including time-dependent Landau-Ginzburg and Cahn-Hillianrd equations, and in Euler turbulence.
description: 69 pages
Identification of new nearby white dwarfs using Gaia DR3
Creators: name: Golovin, Alex
name: Reffert, Sabine
name: Vani, Akash
name: Bastian, Ulrich
name: Jordan, Stefan
name: Just, Andreas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Based on the astrometry and photometry in Gaia DR3, we identified new nearby white dwarfs and validated those that had been missed from recent white dwarf catalogues despite being previously documented. To ensure the reliability of their astrometric solutions, we used a cut on just two parameters from Gaia DR3: the amplitude of the image parameter determination goodness-of-fit and the parallax-over-error ratio. In addition, we imposed photometric signal-to-noise requirements to ensure the reliable identification of white dwarfs when using the colour-magnitude diagram.
 We have identified nine previously unreported white dwarfs within the local population of 50 pc, and validated 21 previously reported white dwarfs missing from the GCWD21 (Gentile Fusillo et al. 2021) and other recent volume-limited white dwarf samples. A few of these objects belong to the rare class of ultra-cool white dwarfs. Four white dwarfs in our sample have an effective temperature of $T_{eff}\leq4000$ K within the $1σ$ interval, and two of them have an absolute magnitude of $M_G > 16.0$ mag. The identified white dwarfs are predominantly located in crowded fields, such as near the Galactic plane or in the foreground of the Large Magellanic Cloud. We also find that 19 of these white dwarfs have common proper motion companions with angular separations ranging from $1.1''$ to $7.1''$ and brightness differences between the components of up to 9.8 magnitudes. One of these systems is a triple system consisting of a white dwarf and two K dwarfs, while another is a double white dwarf system. We have identified 103 contaminants among the 2338 high-confidence white dwarfs in the 50 pc subsample of the GCWD21 and have found that their astrometric solutions in Gaia DR3 are spurious, improving the purity by 4.4%.
description: Accepted for publication in A&A on 02 December 2023. 15 pages, 14 figures. Abstract abridged due to arXiv's 1920 character limit
Tom Hawk's 'alysháa, 'ash'íi, Deer, 'avuuspó
Creators: name: , Elvin
name: Halpern, Abraham M.
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: yum

description: 2 WAV files. Side A includes 'alysháa and 'ash'íi, Side B Deer and 'avuuspó, the latter with question marks suggesting the identification is uncertain. Digitization by The Audio Archive (Burlingame, California).
A statistical analysis of dust polarization properties in ALMA observations of Class 0 protostellar cores
Creators: name: Gouellec, V. J. M. Le
name: Maury, A. J.
name: Guillet, V.
name: Hull, C. L. H.
name: Girart, J. M.
name: Verliat, A.
name: Mignon-Risse, R.
name: Valdivia, V.
name: Hennebelle, P.
name: González, M.
name: Louvet, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recent observational progress has challenged the dust grain-alignment theories used to explain the polarized dust emission routinely observed in star-forming cores. In an effort to improve our understanding of the dust grain alignment mechanism(s), we have gathered a dozen ALMA maps of (sub)millimeter-wavelength polarized dust emission from Class 0 protostars, and carried out a comprehensive statistical analysis of dust polarization quantities. We analyze the statistical properties of the polarization fraction P_frac and dispersion of polarization position angles S. More specifically, we investigate the relationship between S and P_frac as well as the evolution of the product S*P_frac as a function of the column density of the gas in the protostellar envelopes. We find a significant correlation in the polarized dust emission from protostellar envelopes seen with ALMA; the power-law index differs significantly from the one observed by Planck in star-forming clouds. The product S*P_frac, which is sensitive to the dust grain alignment efficiency, is approximately constant across three orders of magnitude in envelope column density. This suggests that the grain alignment mechanism producing the bulk of the polarized dust emission in star-forming cores may not depend systematically on the local conditions such as local gas density. Ultimately, our results suggest dust alignment mechanism(s) are efficient at producing dust polarized emission in the various local conditions typical of Class 0 protostars. The grain alignment efficiency found in these objects seems to be higher than the efficiency produced by the standard RAT alignment of paramagnetic grains. Further study will be needed to understand how more efficient grain alignment via, e.g., different irradiation conditions, dust grain characteristics, or additional grain alignment mechanisms can reproduce the observations.
title: Was macht den Menschen aus? „The Family of Man“ im Château Clervaux, Luxemburg
Creators: name: te Heesen, Kerstin
Publisher: name: ZZF - Centre for Contemporary History: Visual History
Year: 2014

description: Das Eintauchen in die besondere Welt der „Family of Man“ beginnt für den Besucher bereits bei der Anreise: Erscheint der großformatige Hinweis am Abzweig der Schnellstraße noch als gewöhnliches Hinweisschild, führt die weitere Fahrt über immer verschlungenere Kurven schließlich zu einer Anhöhe, die einen beeindruckenden Blick über das im Tal liegende Städtchen Clervaux eröffnet. Dominant auf der gegenüberliegenden Seite erstreckt sich leicht erhöht das schneeweiße Schloss, das im Juli 2013 nach längerer Renovierung die Wiedereröffnung der permanenten Ausstellung „The Family of Man“ feierte.
Gated two-dimensional electron gas in magnetic field: nonlinear versus linear regimes
Creators: name: Dyakonova, N.
name: Dyakonov, M.
name: Kvon, Z. D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We study the effect of magnetic field on the properties of a high mobility gated two-dimensional electron gas in a field effect transistor with the Hall bar geometry. When approaching the current saturation when the drain side of the channel becomes strongly depleted, we see a number of unusual effects related to the magnetic field induced re-distribution of the electron density in the conducting channel. The experimental results obtained in the non-linear regime have been interpreted based on the results obtained in the linear regime by a simple theoretical model, which describes quite well our observations.
description: 6 pages, 8 figures
Bouncing Cosmologies
Creators: name: Novello, M.
name: Bergliaffa, S. E. Perez
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We review the general features of nonsingular universes ({\em i.e.} those that go from an era of accelerated collapse to an expanding era without displaying a singularity) as well as cyclic universes. We discuss the mechanisms behind the bounce, and analyze examples of solutions that implement these mechanisms. Observational consequences of such regular cosmologies are also considered, with emphasis in the behavior of the perturbations.
description: Please send comments to novello@cbpf.br with copy to sepbergliaffa@gmail.com
Equivariant counts of points of the moduli spaces of pointed hyperelliptic curves
Creators: name: Bergström, Jonas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H10, 11G20

description: We consider the moduli space $\Hh_{g,n}$ of $n$-pointed smooth hyperelliptic curves of genus $g$. In order to get cohomological information we wish to make $\s_n$-equivariant counts of the numbers of points defined over finite fields of this moduli space. We find recurrence relations in the genus that these numbers fulfill. Thus, if we can make $\s_n$-equivariant counts of $\Hh_{g,n}$ for low genus, then we can do this for every genus. Information about curves of genus 0 and 1 is then found to be sufficient to compute the answers for $\Hh_{g,n}$ for all $g$ and for $n \leq 7$. These results are applied to the moduli spaces of stable curves of genus 2 with up to 7 points, and this gives us the $\s_n$-equivariant Galois (resp. Hodge) structure of their $\ell$-adic (resp. Betti) cohomology.
description: 33 pages, final version, appeared in Documenta Mathematica
Recital of compositions
Creators: name: Morlock, Jocelyn
Publisher: name: University of British Columbia
Year: 2009

description: The thesis is a concert of six musical compositions presented in the recital hall of the UBC School of Music on April 28, 1996. FANFARE FOR THE WINTER SOLSTICE This is a short (2-3 minute) fanfare for six trumpets. The entire piece is based on the opening four-note figure, and is quite contrapuntal and antiphonal in nature. Harmonically, it is the most tonal and consonant piece on the recital. VOLANTIS, THE FLYING FISH! This twelve-minute quintet explores the range of rhythmic and harmonic simplicity and complexity that can be found within the same piece. LIMBO The four movements of this piece for clarinet and piano are closely related in terms of harmony, but contain quite diverse rhythmic motives. The piano and clarinet lines are imitative of one another, especially in the first three movements. RATATOUILLE The name of this short electroacoustic piece comes from the pervasive use of vegetable names for sound material. darkness of prairie sky This six-minute piece for solo bassoon is, like the Fanfare, quite tonal and consonant. It exploits the entire range of the bassoon and shows off the technique of the player. THREE SONGS ON POEMS BY OCTAVIO PAZ These songs for high voice, oboe, and percussion combine traditional notation techniques with proportional notation. The goal of this is to create a somewhat improvisatory sound without undue confusion for the performers.
The Quantum House Of Cards
Creators: name: Waintal, Xavier
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum computers have been proposed to solve a number of important problems such as discovering new drugs, new catalysts for fertilizer production, breaking encryption protocols, optimizing financial portfolios, or implementing new artificial intelligence applications. Yet, to date, a simple task such as multiplying 3 by 5 is beyond existing quantum hardware. This article examines the difficulties that would need to be solved for quantum computers to live up to their promises. I discuss the whole stack of technologies that has been envisioned to build a quantum computer from the top layers (the actual algorithms and associated applications) down to the very bottom ones (the quantum hardware, its control electronics, cryogeny, etc.) while not forgetting the crucial intermediate layer of quantum error correction.
description: 7 pages, 1 figure. Published as a Perspective in PNAS
Measurement of the inclusive and differential $t$-channel single top quark production cross section at 13 TeV with the CMS experiment
Creators: name: Seith, David
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021
Subjects: single top
top quark
LHC
CMS
13 TeV
cros section
polarization
Run 2

description: A measurement of the inclusive and differential $t$-channel single top quark production cross section is performed in this thesis. The measurement uses 137 fb$^{-1}$ of data recorded at the CMS experiment at the LHC with a center-of-mass energy of 13 TeV. Events are selected with exactly one muon or electron and two or three jets, of which at least one is identified as originating from a bottom quark. In the analysis an improved technique for reconstructing the top quark has been developed that makes use of a neural network in order to achieve a better description of the top quark's kinematic variables. A multiclassification BDT is used to classify events into different process categories. The cross sections are extracted from a fit to the output distribution of the multiclassification BDT. The inclusive cross section of $t$-channel single top quark production was measured to be $\sigma_{\mathrm{t}} = 130 \pm 20 \, \mathrm{pb}$ and the cross section of top antiquark production to be $\sigma_{\mathrm{\bar{t}}} = 80 \pm 15 \, \mathrm{pb}$. The differential cross section measurement is performed via unfolding. The measured differential cross sections as a function of the top quark transverse momentum and rapidity agree with the predictions of the SM. Three angular variables, $\cos x, \cos y$, and $\cos z$, are defined in the top quark rest frame between the charged lepton from the top quark decay and three axes, which are defined based on the direction of the spectator quark and the beamline axis. The asymmetries in these distributions are measured to be: $A_{x}(\mathrm{t}+\mathrm{\bar{t}})=-0.07\pm0.09$, $A_{y}(\mathrm{t}+\mathrm{\bar{t}})=0.00\pm0.05$, and $A_{z}(t+\bar{t})=0.42\pm0.08$. The measured asymmetries are used to constraint the magnitude of possible right handed couplings between the top quark and the W boson.
Constraints on the [CII] luminosity of a proto-globular cluster at z~6 obtained with ALMA
Creators: name: Calura, F.
name: Vanzella, E.
name: Carniani, S.
name: Gilli, R.
name: Rosati, P.
name: Meneghetti, M.
name: Paladino, R.
name: Decarli, R.
name: Brusa, M.
name: Lupi, A.
name: D'Amato, Q.
name: Bergamini, P.
name: Caminha, . G. B.
name: -
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report on ALMA observations of D1, a system at z~6.15 with stellar mass M_* ~ 10^7 M_sun containing globular cluster (GC) precursors, strongly magnified by the galaxy cluster MACS J0416.1-2403. Since the discovery of GC progenitors at high redshift, ours is the first attempt to probe directly the physical properties of their neutral gas through infrared observations. A careful analysis of our dataset, performed with a suitable procedure designed to identify faint narrow lines and which can test various possible values for the unknown linewidth value, allowed us to identify a 4-sigma tentative detection of [CII] emission with intrinsic luminosity L_CII=(2.9 +/- 1.4) 10^6 L_sun, one of the lowest values ever detected at high redshift. This study offers a first insight on previously uncharted regions of the L_CII-SFR relation. Despite large uncertainties affecting our measure of the star formation rate, if taken at face value our estimate lies more than 1 dex below the values observed in local and high redshift systems. Our weak detection indicates a deficiency of [CII] emission, possibly ascribed to various explanations, such as a low-density gas and/or a strong radiation field caused by intense stellar feedback, and a low metal content. From the non-detection in the continuum we derive constraints on the dust mass, with 3-sigma upper limit values as low as a few 10^4 M_sun, consistent with the values measured in local metal-poor galaxies.
description: MNRAS, accepted. 15 pages, 5 figures