cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Digital health access and utilisation by women in Aotearoa New Zealand: Protocol for a scoping review.
Creators: name: Mukwezwa Tapera, Rachel
name: Oladimeji, Oluwatoyin
name: Ramalho, Rodrigo
name: Anderson, Anneka
Publisher: name: Zenodo
Year: 2024

description: Digital health is an evolving clinical practice and research area, bringing together health and technology. Digital technologies are crucial tools that facilitate disease prevention, manage illnesses, and improve the overall quality of life. The value and benefits of digital health technologies cannot be understated, however, little is known about how women in Aotearoa New Zealand engage with these opportunities to improve their health and well-being. This scoping review will determine how women fin Aotearoa access and utilise digital health services.
Peristalsis by pulses of activity
Creators: name: Gorbushin, Nikolai
name: Truskinovsky, Lev
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Peristalsis by actively generated waves of muscle contraction is one of the most fundamental ways of producing motion in living systems. We show that peristalsis can be modeled by a train of rectangular-shaped solitary waves of localized activity propagating through otherwise passive matter. Our analysis is based on the FPU-type discrete model accounting for active stresses and we reveal the existence in this problem of a critical regime which we argue to be physiologically advantageous.
[Collected publications]
Creators: name: Greig, Donald Westlake
Publisher: name: Canberra, ACT : The Australian National University
Year: 2017
Subjects: subject: Commercial law
subject: International law

description: Collection of 15 books and articles which includes: 1) International law. 2nd ed. -- 2) Sale of goods -- 3) Commercial law, by G.J. Borrie. 2nd Australian ed. by D.W. Greig -- 4) Carriage of goods [: being chapter 4 of Commercial law by G.J. Borrie. 1st Australian ed. by D.W. Greig] -- 5) Australian outlook, v. 32, no.2 [includes article by D.W. Greig]
Fast and Robust Cascade Model for Multiple Degradation Single Image Super-Resolution
Creators: name: López-Tapia, Santiago
name: de la Blanca, Nicolás Pérez
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Single Image Super-Resolution (SISR) is one of the low-level computer vision problems that has received increased attention in the last few years. Current approaches are primarily based on harnessing the power of deep learning models and optimization techniques to reverse the degradation model. Owing to its hardness, isotropic blurring or Gaussians with small anisotropic deformations have been mainly considered. Here, we widen this scenario by including large non-Gaussian blurs that arise in real camera movements. Our approach leverages the degradation model and proposes a new formulation of the Convolutional Neural Network (CNN) cascade model, where each network sub-module is constrained to solve a specific degradation: deblurring or upsampling. A new densely connected CNN-architecture is proposed where the output of each sub-module is restricted using some external knowledge to focus it on its specific task. As far we know this use of domain-knowledge to module-level is a novelty in SISR. To fit the finest model, a final sub-module takes care of the residual errors propagated by the previous sub-modules. We check our model with three state of the art (SOTA) datasets in SISR and compare the results with the SOTA models. The results show that our model is the only one able to manage our wider set of deformations. Furthermore, our model overcomes all current SOTA methods for a standard set of deformations. In terms of computational load, our model also improves on the two closest competitors in terms of efficiency. Although the approach is non-blind and requires an estimation of the blur kernel, it shows robustness to blur kernel estimation errors, making it a good alternative to blind models.
description: 12 pages and 11 figures (8 figures and 3 tables)
Simple Single-Section Diode Frequency Combs
Creators: name: Day, Matthew. W.
name: Dong, Mark
name: Smith, Bradley C.
name: Owen, Rachel C.
name: Kerber, Grace C.
name: Ma, Taigao
name: Winful, Herbert G.
name: Cundiff, Steven T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Frequency combs, broadband light sources whose spectra consist of coherent, discrete modes, have become essential in many fields. Miniaturizing frequency combs would be a significant advance in these fields, enabling the deployment of frequency-comb based devices for diverse measurement and spectroscopy applications. We demonstrate diode-laser based frequency comb generators. These laser diodes are simple, electrically pumped, inexpensive and readily manufactured. Each chip contains several dozen diode-laser combs. We measure the time-domain output of a diode frequency comb to reveal the underlying frequency dynamics responsible for the comb spectrum, conduct dual comb spectroscopy of a molecular gas with two devices on the same chip, and demonstrate that these combs can be battery powered.
Bold Impressions: A Comparative Analysis of Artist Prints and Print Collecting at the Imperial War Museum and Australian War Memorial
Creators: name: Walton, Alexandra
Publisher: name: The Australian National University
Year: 2018
Subjects: printmaking, artist print, fine art print, print, Australian War Memorial, Imperial War Museum, print collection, curator, curatorship, collection development, war museum, war art, collection, museums

description: This thesis examines the historical development of the artist print collections of the Imperial War Museum and Australian War Memorial, and analyses the relationship of these collections to their institutions. Printmaking is an artistic medium that has historically been used by artists for social critique, and many high quality works of this type are present in the two collections. I argue that in both museums, when developing the print collections, curators were able to acquire beyond the strict interpretation of the museums’ collecting guidelines. As a result of this, the prints have challenged some of the more conservative underlying messages of the museums. National war museums are ideal for a study of contested histories, particularly those within their own collections, and the IWM and AWM are prominent institutions in this specialist category of museums. My hypothesis is that prints can destabilize the histories that war museums wish to present due to their historical use by artists for a variety of purposes that are somewhat unique to the medium. This is driven by the materiality of the print. This study also analyses how museum structures and internal cultures affected the development of the print collections. In particular, I have tried to answer the questions: What factors influenced the development of the print collections? And how did the professional agendas of curators inform that development? Print collecting flourished at key points in the histories of the institutions, particularly when fine art specialists were in charge of acquisitions. While print collecting broadly reflected the aims of the institutions at different times, on occasion it introduced divergent narratives into the war museums. This thesis is interdisciplinary in the way it uses a history methodology and museum studies framework. The historical research methods employed include archival research and semi-structured interviews with selected former and current museum staff. My research will add to academic and curatorial knowledge about how collections are formed in large national museums, and analyse the role and significance of two collections that have not previously been thoroughly examined. The thesis places the curator as the creator of the collection, not merely as someone who carries out instructions from management, but who negotiates between the institutional forces, social forces and the nature of the objects, to ultimately shape the collection.
Real-time EEG-based Emotion Recognition Model using Principal Component Analysis and Tree-based Models for Neurohumanities
Creators: name: Blanco-Rios, Miguel A.
name: Candela-Leal, Milton O.
name: Orozco-Romo, Cecilia
name: Remis-Serna, Paulina
name: Velez-Saboya, Carol S.
name: Lozoya-Santos, Jorge De-J.
name: Cebral-Loureda, Manuel
name: Ramirez-Moreno, Mauricio A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Signal Processing (eess.SP)
subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Within the field of Humanities, there is a recognized need for educational innovation, as there are currently no reported tools available that enable individuals to interact with their environment to create an enhanced learning experience in the humanities (e.g., immersive spaces). This project proposes a solution to address this gap by integrating technology and promoting the development of teaching methodologies in the humanities, specifically by incorporating emotional monitoring during the learning process of humanistic context inside an immersive space. In order to achieve this goal, a real-time emotion detection EEG-based system was developed to interpret and classify specific emotions. These emotions aligned with the early proposal by Descartes (Passions), including admiration, love, hate, desire, joy, and sadness. This system aims to integrate emotional data into the Neurohumanities Lab interactive platform, creating a comprehensive and immersive learning environment. This work developed a ML, real-time emotion detection model that provided Valence, Arousal, and Dominance (VAD) estimations every 5 seconds. Using PCA, PSD, RF, and Extra-Trees, the best 8 channels and their respective best band powers were extracted; furthermore, multiple models were evaluated using shift-based data division and cross-validations. After assessing their performance, Extra-Trees achieved a general accuracy of 96%, higher than the reported in the literature (88% accuracy). The proposed model provided real-time predictions of VAD variables and was adapted to classify Descartes' six main passions. However, with the VAD values obtained, more than 15 emotions can be classified (reported in the VAD emotion mapping) and extend the range of this application.
description: 20 pages, 7 figures. Submitted to Frontiers in Human Neuroscience
CaEGCN: Cross-Attention Fusion based Enhanced Graph Convolutional Network for Clustering
Creators: name: Huo, Guangyu
name: Zhang, Yong
name: Gao, Junbin
name: Wang, Boyue
name: Hu, Yongli
name: Yin, Baocai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: With the powerful learning ability of deep convolutional networks, deep clustering methods can extract the most discriminative information from individual data and produce more satisfactory clustering results. However, existing deep clustering methods usually ignore the relationship between the data. Fortunately, the graph convolutional network can handle such relationship, opening up a new research direction for deep clustering. In this paper, we propose a cross-attention based deep clustering framework, named Cross-Attention Fusion based Enhanced Graph Convolutional Network (CaEGCN), which contains four main modules: the cross-attention fusion module which innovatively concatenates the Content Auto-encoder module (CAE) relating to the individual data and Graph Convolutional Auto-encoder module (GAE) relating to the relationship between the data in a layer-by-layer manner, and the self-supervised model that highlights the discriminative information for clustering tasks. While the cross-attention fusion module fuses two kinds of heterogeneous representation, the CAE module supplements the content information for the GAE module, which avoids the over-smoothing problem of GCN. In the GAE module, two novel loss functions are proposed that reconstruct the content and relationship between the data, respectively. Finally, the self-supervised module constrains the distributions of the middle layer representations of CAE and GAE to be consistent. Experimental results on different types of datasets prove the superiority and robustness of the proposed CaEGCN.
Doppler shift oscillations of a sunspot detected by CYRA and IRIS
Creators: name: Li, D.
name: Yang, X.
name: Bai, X. Y.
name: Su, J. T.
name: Ning, Z. J.
name: Cao, W.
name: Deng, Y. Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. The carbon monoxide (CO) molecular line at around 46655 A in solar infrared spectra is often used to investigate the dynamic behavior of the cold heart of the solar atmosphere, i.e., sunspot oscillation, especially at the sunspot umbra. Aims. We investigated sunspot oscillation at Doppler velocities of the CO 7-6 R67 and 3-2 R14 lines that were measured by the Cryogenic Infrared Spectrograph (CYRA), as well as the line profile of Mg II k line that was detected by the Interface Region Imaging Spectrograph (IRIS). Methods. A single Gaussian function is applied to each CO line profile to extract the line shift, while the moment analysis method is used for the Mg II k line. Then the sunspot oscillation can be found in the time-distance image of Doppler velocities, and the quasi-periodicity at the sunspot umbra are determined from the wavelet power spectrum. Finally, the cross-correlation method is used to analyze the phase relation between different atmospheric levels. Results. At the sunspot umbra, a periodicity of roughly 5 min is detected at the Doppler velocity range of the CO 7-6 R67 line that formed in the photosphere, while a periodicity of around 3 min is discovered at the Doppler velocities of CO 3-2 R14 and Mg II k lines that formed in the upper photosphere or the temperature minimum region and the chromosphere. A time delay of about 2 min is measured between the strong CO 3-2 R14 line and the Mg II k line. Conclusions. Based on the spectroscopic observations from the CYRA and IRIS, the 3 min sunspot oscillation can be spatially resolved in the Doppler shifts. It may come from the upper photosphere or the temperature minimum region and then propagate to the chromosphere, which might be regarded as a propagating slow magnetoacoustic wave.
description: 9 pages, 10 figures, accepted by A&A
title: Path planning for reconfigurable hTetro robot combining heat conduction-based and discrete optimization
Creators: name: Do, Huy
name: Vu, Le Anh
name: Weeger, Oliver
name: Mohan, Rajesh Elara
name: Guo, Yujie
name: Nguyen, Tan Nhat
name: Vu, Minh Bui
name: Duc, Phan Van
Publisher: name: IEEE
Year: 2021

description: Self-reconfigurable robots present advanced solutions for various automation applications in domains, e.g., planetary exploration, rescue missions, cleaning, and maintenance. These robots have the ability to change their morphology according to given requirements or adapt to new circumstances, which, for example, can overcome constraints while navigating within a working environment. However, the autonomous navigation of self-reconfigurable robots is more complex than that of robots with fixed shape because of the intrinsic complexity of robot motions, especially in complicated obstacle environments. To address this challenge, we present a novel path planning method for reconfigurable robots in this study. The technique is inspired by the similarity between a robot motion path and a heat conduction path at the steady-state. In the heat transfer analysis domain, feasible moving locations are modeled as materials with high conductivity, while obstacles are considered thermal insulators, and the initial and destination positions are assigned as heat sink and heat source, respectively. The temperature profile and gradient calculated by finite element analysis are used to indicate the possible moving directions from the heat sink to the heat source. Based on the temperature gradient ascent, a step-wise conductivity reaching algorithm is developed to optimize robot paths using customized multi-objective functions that take the costs of morphology changes, path smoothness, and safety into account. The proposed path planning method is successfully applied to the hinged-tetro self-reconfigurable robot and demonstrated on several virtual environments and a real-world testbed environment.
Tmor-Da: conferences 2 ASA 2020
Creators: name: Ku, Yee Kee
Publisher: name: University of Melbourne
Year: 2021
Subjects: subject: 120508 Urban Design
subject: FOS: Social and economic geography

description: YeeKee Ku (2020) Measuring intensity and frequency of human activities, Ali Ghaffarianhoseini, et al (eds), Imaginable Futures: Design Thinking, and the Scientific Method. 54th International Conference of the Architectural Science Association, Architectural Science Association (ANZAScA), 11 pgs. ISBN: 978-0-9923835-7-2 https://doi.org/10.26188/12782321.v10
https://anzasca.net/category/conference-papers/2020-conference-papers/
https://anzasca.net/paper/measuring-intensity-and-frequency-of-human-activities/
Symbolic-numeric algorithm for parameter estimation in discrete-time models with $\exp$
Creators: name: Berman, Yosef
name: Forrest, Joshua
name: Grote, Matthew
name: Ovchinnikov, Alexey
name: Rueda, Sonia
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Symbolic Computation (cs.SC)
subject: Systems and Control (eess.SY)
subject: Commutative Algebra (math.AC)
subject: Dynamical Systems (math.DS)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics
subject: 92B05, 68W30, 14Q20, 39A60, 13P15

description: Dynamic models describe phenomena across scientific disciplines, yet to make these models useful in application the unknown parameter values of the models must be determined. Discrete-time dynamic models are widely used to model biological processes, but it is often difficult to determine these parameters. In this paper, we propose a symbolic-numeric approach for parameter estimation in discrete-time models that involve univariate non-algebraic (locally) analytic functions such as exp. We illustrate the performance (precision) of our approach by applying our approach to two archetypal discrete-time models in biology (the flour beetle 'LPA' model and discrete Lotka-Volterra competition model). Unlike optimization-based methods, our algorithm guarantees to find all solutions of the parameter values up to a specified precision given time-series data for the measured variables provided that there are finitely many parameter values that fit the data and that the used polynomial system solver can find all roots of the associated polynomial system with interval coefficients.
Soft gamma-ray selected giant radio galaxies: an update
Creators: name: Bassani, L.
name: Ursini, F.
name: Malizia, A.
name: Bruni, G.
name: Panessa, F.
name: Masetti, N.
name: Saviane, I.
name: Monaco, L.
name: Venturi, T.
name: Dallacasa, D.
name: Bazzano, A.
name: Ubertini, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present an update on the sample of soft gamma-ray selected giant radio galaxies (GRGs) extracted from INTEGRAL/IBIS and Swift/BAT surveys; it includes 8 new sources and one candidate object. In the new sample all, but one source, display FR II radio morphologies; the only exception is B21144+35B which is an FR I. The objects belong to both type 1 and 2 AGN optical classes and have redshifts in the range 0.06-0.35, while the radio sizes span from 0.7 to 1 Mpc. In this study, we present for the first time two objects that were never discussed as GRGs before and propose a new candidate GRG. We confirm the correlation between the X-ray luminosity and the radio core luminosity found for other soft gamma-ray selected GRGs and expected for AGNs powered by efficient accretion. We also corroborate previous results that indicate that the luminosity of the radio lobes is relatively low compared with the nuclear X-ray emission. This supports the idea that the nucleus of these GRGs is now more powerful than in the past, consistent with a restarting activity scenario
description: 12 pages, 9 figures. Accepted for publication in MNRAS
Arenocoris fallenii
Creators: name: Valcárcel, Javier Pérez
name: Piloña, Fernando Prieto
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Arenocoris
Arenocoris fallenii

description: Arenocoris fallenii (Schilling, 1829)
Citas bibliográficas:
Huesca: Peña Oroel-Jaca (Vázquez, 1985); sin precisión (Moulet, 1995)
Teruel: Monteagudo (Vázquez, 1985)
Zaragoza: Cadrete a Santa Fe (Laguna de Rins, 1902)
description: Published as part of Valcárcel, Javier Pérez & Piloña, Fernando Prieto, 2011, Contribuciones al catálogo de la familia Coreidae Leach, 1815 (Hemiptera) de Aragón (NE de la Península Ibérica)., pp. 9-20 in Arquivos Entomolóxicos 5 on page 10, DOI: 10.5281/zenodo.11372912
CAFCT-Net: A CNN-Transformer Hybrid Network with Contextual and Attentional Feature Fusion for Liver Tumor Segmentation
Creators: name: Kang, Ming
name: Ting, Chee-Ming
name: Ting, Fung Fung
name: Phan, Raphaël
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Signal Processing (eess.SP)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: I.4.6; I.5.1; J.3
subject: 68T07, 68T10, 68U10, 62P10

description: Medical image semantic segmentation techniques can help identify tumors automatically from computed tomography (CT) scans. In this paper, we propose a Contextual and Attentional feature Fusions enhanced Convolutional Neural Network (CNN) and Transformer hybrid network (CAFCT-Net) for liver tumor segmentation. We incorporate three novel modules in the CAFCT-Net architecture: Attentional Feature Fusion (AFF), Atrous Spatial Pyramid Pooling (ASPP) of DeepLabv3, and Attention Gates (AGs) to improve contextual information related to tumor boundaries for accurate segmentation. Experimental results show that the proposed model achieves a mean Intersection over Union (IoU) of 76.54% and Dice coefficient of 84.29%, respectively, on the Liver Tumor Segmentation Benchmark (LiTS) dataset, outperforming pure CNN or Transformer methods, e.g., Attention U-Net and PVTFormer.
Shaking Force Balancing of the Orthoglide
Creators: name: Geng, Jing
name: Arakelian, Vigen
name: Chablat, Damien
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: The shaking force balancing is a well-known problem in the design of high-speed robotic systems because the variable dynamic loads cause noises, wear and fatigue of mechanical structures. Different solutions, for full or partial shaking force balancing, via internal mass redistribution or by adding auxiliary links were developed. The paper deals with the shaking force balancing of the Orthoglide. The suggested solution based on the optimal acceleration control of the manipulator's common center of mass allows a significant reduction of the shaking force. Compared with the balancing method via adding counterweights or auxiliary substructures, the proposed method can avoid some drawbacks: the increase of the total mass, the overall size and the complexity of the mechanism, which become especially challenging for special parallel manipulators. Using the proposed motion control method, the maximal value of the total mass center acceleration is reduced, as a consequence, the shaking force of the manipulator decreases. The efficiency of the suggested method via numerical simulations carried out with ADAMS is demonstrated.
Scalar potential model of redshift and discrete redshift
Creators: name: Hodge, John C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: On the galactic scale the universe is inhomogeneous and redshift $z$ is occasionally less than zero. A scalar potential model (SPM) that links the galaxy scale $z$ to the cosmological scale $z$ of the Hubble Law is postulated. Several differences among galaxy types suggest that spiral galaxies are Sources and that early type, lenticular, and irregular galaxies are Sinks of a scalar potential field. The morphology-radius and the intragalactic medium cluster observations support the movement of matter from Source galaxies to Sink galaxies. A cell structure of galaxy groups and clusters is proposed to resolve a paradox concerning the scalar potential like the Olber's paradox concerning light. For the sample galaxies, the ratio of the luminosity of Source galaxies to the luminosity of Sink galaxies approaches $2.7 \pm 0.1$. An equation is derived from sample data, which is anisotropic and inhomogeneous, relating $z$ of and the distance $D$ to galaxies. The calculated $z$ has a correlation coefficient of 0.88 with the measured $z$ for a sample of 32 spiral galaxies with $D$ calculated using Cepheid variable stars. The equation is consistent with $z<0$ observations of close galaxies. At low cosmological distances, the equation reduces to $z \approx \exp(KD) \, -1 \approx KD$, where $K$ is a constant, positive value. The equation predicts $z$ from galaxies over 18 Gpc distant approaches a constant value on the order of 500. The SPM of $z$ provides a physical basis for the $z$ of particle photons. Further, the SPM qualitatively suggests the discrete variations in $z$, which was reported by W. G. Tifft, 1997, Astrophy. J. 485, 465 and confirmed by others, are consistent with the SPM.
description: 36 pages, 17 figures, Article in press New Astronomy
Smoothed Particle Hydrodynamics Techniques for the Physics Based Simulation of Fluids and Solids
Creators: name: Koschier, Dan
name: Bender, Jan
name: Solenthaler, Barbara
name: Teschner, Matthias
Publisher: name: arXiv
Year: 2020
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: Graphics research on Smoothed Particle Hydrodynamics (SPH) has produced fantastic visual results that are unique across the board of research communities concerned with SPH simulations. Generally, the SPH formalism serves as a spatial discretization technique, commonly used for the numerical simulation of continuum mechanical problems such as the simulation of fluids, highly viscous materials, and deformable solids. Recent advances in the field have made it possible to efficiently simulate massive scenes with highly complex boundary geometries on a single PC [Com16b, Com16a]. Moreover, novel techniques allow to robustly handle interactions among various materials [Com18,Com17]. As of today, graphics-inspired pressure solvers, neighborhood search algorithms, boundary formulations, and other contributions often serve as core components in commercial software for animation purposes [Nex17] as well as in computer-aided engineering software [FIF16]. This tutorial covers various aspects of SPH simulations. Governing equations for mechanical phenomena and their SPH discretizations are discussed. Concepts and implementations of core components such as neighborhood search algorithms, pressure solvers, and boundary handling techniques are presented. Implementation hints for the realization of SPH solvers for fluids, elastic solids, and rigid bodies are given. The tutorial combines the introduction of theoretical concepts with the presentation of actual implementations.
description: Eurographics Tutorial, 2019
Inter-orbital nematicity and the origin of a single electron Fermi pocket in FeSe
Creators: name: Steffensen, Daniel
name: Kreisel, Andreas
name: Hirschfeld, P. J.
name: Andersen, Brian M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The electronic structure of the enigmatic iron-based superconductor FeSe has puzzled researchers since spectroscopic probes failed to observe the expected electron pocket at the $Y$ point in the 1-Fe Brillouin zone. It has been speculated that this pocket, essential for an understanding of the superconducting state, is either absent or incoherent. Here, we perform a theoretical study of the preferred nematic order originating from nearest-neighbor Coulomb interactions in an electronic model relevant for FeSe. We find that at low temperatures the dominating nematic components are of inter-orbital $d_{xz}-d_{xy}$ and $d_{yz}-d_{xy}$ character, with spontaneously broken amplitudes for these two components. This inter-orbital nematic order naturally leads to distinct hybridization gaps at the $X$ and $Y$ points of the 1-Fe Brillouin zone, and may thereby produce highly anisotropic Fermi surfaces with only a single electron pocket at one of these momentum-space locations. The associated superconducting gap structure obtained with the generated low-energy electronic band structure from spin-fluctuation mediated pairing agrees well with that measured experimentally. Finally, from a comparison of the computed spin susceptibility to available neutron scattering data, we discuss the necessity of additional self-energy effects, and explore the role of orbital-dependent quasiparticle weights as a minimal means to include them.
description: 8 pages, 5 figures + Appedices
Peculiar Velocities of 3000 Spiral Galaxies from the 2MFGC Catalog
Creators: name: Karachentsev, I. D.
name: Kudrya, Yu. N.
name: Karachentseva, V. E.
name: Mitronova, S. N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The 2MFGC catalog we have used contains 18020 galaxies selected from the extended objects in the 2MASS infrared sky survey as having apparent ratios of the axes b/a<0.3. Most of them are spiral galaxies of later morphological types whose disks are seen almost edge-on. The individual distances to the 2724 2MFGC galaxies with known rotation velocities and radial velocities are determined using a multiparameter infrared Tully-Fisher relation. A list of the distances and peculiar velocities of these galaxies is presented. The collective motion of the 2MFGC galaxies relative to the cosmic microwave background is characterized by a velocity V = 199 +- 37 km/s in the direction l = 304o +- 11o, b = -8o +- 8o. Our list is currently the most representative and uniform sample for analyzing non-Hubble motions of galaxies on a scale of ~100 Mpc.
description: 12 pages, 5 figures, 1 table (here we present the beginning of the table as an illustration). Astrophysics, Vol. 49, No. 4, 2006. Original article submitted June 13, 2006. Translated from Astrofizika, Vol. 49, No. 4, pp. 527-540 (November 2006)
Tmor-Da: conferences 2 ASA 2020
Creators: name: Ku, Yee Kee
Publisher: name: University of Melbourne
Year: 2020
Subjects: subject: 120508 Urban Design
subject: FOS: Social and economic geography

description: YeeKee Ku (2020) Measuring intensity and frequency of human activities, Ali Ghaffarianhoseini, et al (eds), Imaginable Futures: Design Thinking, and the Scientific Method. 54th International Conference of the Architectural Science Association, Architectural Science Association (ANZAScA), 11 pgs. ISBN: 978-0-9923835-7-2
https://anzasca.net/category/conference-papers/2020-conference-papers/
https://anzasca.net/paper/measuring-intensity-and-frequency-of-human-activities/
Anisotropic Einstein universes with a global magetic field and SqK-spinors
Creators: name: Ueno, Fumihiro
name: Matsuno, Satsuki
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider an Einstein-Dirac-Maxwell system with two charged massless spinors coupled with an electromagnetic field, and construct a family of exact solutions to the system. The solution spacetime is an anisotropic generalization of the static Einstein universe which has a global cosmic magnetic field generated by the current of the spinors. The spacetime is regarded as a toy model which describes global cosmic magnetic phenomena in the universe. The spinors are induced from Sasakian quasi-Killing spinors, and the total Dirac current flows along fibers of the Hopf-fibration. The magnetic field is a contact magnetic field.
description: 12 pages. arXiv admin note: text overlap with arXiv:2303.14413
Magnetism in SQUIDs at Millikelvin Temperatures
Creators: name: Sendelbach, S.
name: Hover, D.
name: Kittel, A.
name: Mück, M.
name: Martinis, John M.
name: McDermott, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have characterized the temperature dependence of the flux threading dc SQUIDs cooled to millikelvin temperatures. The flux increases as 1/T as temperature is lowered; moreover, the flux change is proportional to the density of trapped vortices. The data is compatible with the thermal polarization of surface spins in the trapped fields of the vortices. In the absence of trapped flux, we observe evidence of spin-glass freezing at low temperature. These results suggest an explanation for the "universal" 1/f flux noise in SQUIDs and superconducting qubits.
description: 4 pages, 4 figures
Stroboscopic aliasing in long-range interacting quantum systems
Creators: name: Kelly, Shane P.
name: Timmermans, Eddy
name: Marino, Jamir
name: Tsai, S. -W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We unveil a mechanism for generating oscillations with arbitrary multiplets of the period of a given external drive, in long-range interacting quantum many-particle spin systems. These oscillations break discrete time translation symmetry as in time crystals, but they are understood via two intertwined stroboscopic effects similar to the aliasing resulting from video taping a single fast rotating helicopter blade. The first effect is similar to a single blade appearing as multiple blades due to a frame rate that is in resonance with the frequency of the helicopter blades' rotation; the second is akin to the optical appearance of the helicopter blades moving in reverse direction. Analogously to other dynamically stabilized states in interacting quantum many-body systems, this stroboscopic aliasing is robust to detuning and excursions from a chosen set of driving parameters, and it offers a novel route for engineering dynamical $n$-tuplets in long-range quantum simulators, with potential applications to spin squeezing generation and entangled state preparation.
description: 5 pages, 4 figures
Separability criteria and bounds for entanglement measures
Creators: name: Breuer, Heinz-Peter
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Employing a recently proposed separability criterion we develop analytical lower bounds for the concurrence and for the entanglement of formation of bipartite quantum systems. The separability criterion is based on a nondecomposable positive map which operates on state spaces with even dimension N >= 4, and leads to a class of nondecomposable optimal entanglement witnesses. It is shown that the bounds derived here complement and improve the existing bounds obtained from the criterion of positive partial transposition and from the realignment criterion.
description: 8 pages, 2 figures
Separation and Quantification of Ionospheric Convection Sources: 2. The Dipole Tilt Angle Influence on Reverse Convection Cells During Northward IMF
Creators: name: Reistad, J. P.
name: Laundal, K. M.
name: Østeward, N.
name: Ohma, A.
name: Thomas, E. G.
name: Haaland, S.
name: Oksavik, K.
name: Milan, S. E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: This paper investigates the influence of Earth's dipole tilt angle on the reverse convection cells (sometimes referred to as lobe cells) in the Northern Hemisphere ionosphere during northward IMF, which we relate to high-latitude reconnection. Super Dual Auroral Radar Network plasma drift observations in 2010-2016 are used to quantify the ionospheric convection. A novel technique based on Spherical Elementary Convection Systems (SECS) that was presented in our companion paper (Reistad et al., 2019, https://doi.org/10.1029/2019JA026634) is used to isolate and quantify the reverse convection cells. We find that the dipole tilt angle has a linear influence on the reverse cell potential. In the Northern Hemisphere the reverse cell potential is typically two times higher in summer than in winter. This change is interpreted as the change in interplanetary magnetic field-lobe reconnection rate due to the orientation of the dipole tilt. Hence, the dipole tilt influence on reverse ionospheric convection can be a significant modification of the more known influence from v(O$_{sw}$)B(O$_{z}$). These results could be adopted by the scientific community as key input parameters for lobe reconnection coupling functions.
Homotopy symmetry in the multiply connected twin paradox of special relativity
Creators: name: Roukema, Boudewijn F.
name: Bajtlik, Stanislaw
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In a multiply connected space, the two twins of the special relativity twin paradox move with constant relative speed and meet a second time without acceleration. The twins' situations appear to be symmetrical despite the need for one to be younger due to time dilation. Here, the suggestion that the apparent symmetry is broken by homotopy classes of the twins' worldlines is reexamined using space-time diagrams. It is found that each twin finds her own spatial path to have zero winding index and that of the other twin to have unity winding index, i.e. the twins' worldlines' relative homotopy classes are symmetrical. Although the twins' apparent symmetry is in fact broken by the need for the non-favoured twin to non-simultaneously identify spatial domain boundaries, the non-favoured twin {\em cannot} detect her disfavoured state if she only measures the homotopy classes of the two twins' projected worldlines, contrary to what was previously suggested. We also note that for the non-favoured twin, the fundamental domain can be chosen by identifying time boundaries (with a spatial offset) instead of space boundaries (with a temporal offset).
description: 11 pages, 9 figures, v6: more elementary algebra, extra figure, accepted in MNRAS, the definitive version will be available at http://www.blackwell-synergy.com
Gauge-Invariant Quantum Fields
Creators: name: Quadri, Andrea
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Gauge-invariant quantum fields are constructed in an Abelian power-counting renormalizable gauge theory with both scalar, vector and fermionic matter content. This extends previous results already obtained for the gauge-invariant description of the Higgs mode via a propagating gauge-invariant field. The renormalization of the model is studied in the Algebraic Renormalization approach.
 The decomposition of Slavnov-Taylor identities into separately invariant sectors is analyzed.
 We also comment on some non-renormalizable extensions of the model whose 1-PI Green's functions are the flows of certain differential equations of the homogeneous Euler type, exactly resumming the dependence on a certain set of dim. 6 and dim. 8 derivative operators.
 The latter are identified uniquely by the condition that they span the mass and kinetic terms in the gauge-invariant dynamical fields.
 The construction can be extended to non-Abelian gauge groups.
description: 45pages, some typos corrected, extended discussion in Sect. V and VII. Final version published in The European Physical Journal C
Deep Inelastic Pion Electroproduction at Threshold
Creators: name: Braun, V. M.
name: Ivanov, D. Yu.
name: Lenz, A.
name: Peters, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the cross section of the deep inelastic pion electroproduction on a proton target at threshold for Q^2 in the region 5-10 GeV^2. The corresponding amplitudes are described in terms of two form factors which we calculate using light cone sum rules (LCSR) to leading order in QCD and including higher twist corrections. Our results suggest a considerable change from a small Q^2 region that can be treated in the soft pion limit using current algebra. In particular, we obtain a π^0 to π^+ producton ratio of order 1/3 and significant nucleon helicity-flip contributions.
description: 21 pages, 3 figures
NLTE determination of the aluminium abundance in a homogeneous sample of extremely metal-poor stars
Creators: name: Andrievsky, S. M.
name: Spite, M.
name: Korotin, S. A.
name: Spite, F.
name: Bonifacio, P.
name: Cayrel, R.
name: Hill, V.
name: François, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Aims: Aluminium is a key element to constrain the models of the chemical enrichment and the yields of the first supernovae. But obtaining precise Al abundances in extremely metal-poor (EMP) stars requires that the non-LTE effects be carefully taken into account. Methods: The NLTE profiles of the blue resonance aluminium lines have been computed in a sample of 53 extremely metal-poor stars with a modified version of the program MULTI applied to an atomic model of the Al atom with 78 levels of Al I and 13 levels of Al II, and compared to the observations. Results: With these new determinations, all the stars of the sample show a ratio Al/Fe close to the solar value: [Al/Fe] =-0.06 +- 0.10 with a very small scatter. These results are compared to the models of the chemical evolution of the halo using different models of SN II and are compatible with recent computations. The sodium-rich giants are not found to be also aluminium-rich and thus, as expected, the convection in these giants only brings to the surface the products of the Ne-Na cycle.
description: To be published on A&A
Haploprocta sulcicornis
Creators: name: Valcárcel, Javier Pérez
name: Piloña, Fernando Prieto
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Haploprocta
Haploprocta sulcicornis

description: Haploprocta sulcicornis (Fabricius, 1794)
Citas bibliográficas:
Teruel: Bronchales, Teruel (Vázquez, 1985)
Zaragoza: Zaragoza (Ardid de Acha, 1903); Moncayo (Champion & Chapman, 1904); Jaulín (Vázquez, 1985); Retuerta de Pina (Ribes et al., 1997)
description: Published as part of Valcárcel, Javier Pérez & Piloña, Fernando Prieto, 2011, Contribuciones al catálogo de la familia Coreidae Leach, 1815 (Hemiptera) de Aragón (NE de la Península Ibérica)., pp. 9-20 in Arquivos Entomolóxicos 5 on page 13, DOI: 10.5281/zenodo.11372912
Phyllophya laciniata
Creators: name: Valcárcel, Javier Pérez
name: Piloña, Fernando Prieto
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Phyllophya
Phyllophya laciniata

description: Phyllophya laciniata (Villiers, 1789)
Citas bibliográficas:
Teruel: Albarracín (Champion, 1902, Moulet, 1995); Bronchales (Vázquez, 1985); sin precisión (Moulet, 1995)
Zaragoza: Zaragoza (Ardid de Acha, 1903); Cadrete, Peñaflor (Vázquez, 1985); Retuerta de Pina (Ribes et al., 1997); Reserva de los Galachos del Ebro (Murria, 2001)
Material estudiado:
Zaragoza: Valdefierro, 12-07-1987, 1♂; Zaragoza, 01-07-1990, 1♀ (A. Melic leg., col. SEA)
description: Published as part of Valcárcel, Javier Pérez & Piloña, Fernando Prieto, 2011, Contribuciones al catálogo de la familia Coreidae Leach, 1815 (Hemiptera) de Aragón (NE de la Península Ibérica)., pp. 9-20 in Arquivos Entomolóxicos 5 on page 14, DOI: 10.5281/zenodo.11372912
The TW Hya Rosetta Stone Project II: Spatially resolved emission of formaldehyde hints at low-temperature gas-phase formation
Creators: name: van Scheltinga, Jeroen Terwisscha
name: Hogerheijde, Michiel R.
name: Cleeves, L. Ilsedore
name: Loomis, Ryan A.
name: Walsh, Catherine
name: Öberg, Karin I.
name: Bergin, Edwin A.
name: Bergner, Jennifer B.
name: Blake, Geoffrey A.
name: Calahan, Jenny K.
name: Cazzoletti, Paolo
name: van Dishoeck, Ewine F.
name: Guzmán, Viviana V.
name: Huang, Jane
name: Kama, Mihkel
name: Qi, Chunhua
name: Teague, Richard
name: Wilner, David J.
Publisher: name: arXiv
Year: 2020
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: FOS: Physical sciences

description: Formaldehyde (H$_2$CO) is an important precursor to organics like methanol (CH$_3$OH). It is important to understand the conditions that produce H$_2$CO and prebiotic molecules during star and planet formation. H$_2$CO possesses both gas-phase and solid-state formation pathways, involving either UV-produced radical precursors or CO ice and cold ($\lesssim 20$ K) dust grains. To understand which pathway dominates, gaseous H$_2$CO's ortho-to-para ratio (OPR) has been used as a probe, with a value of 3 indicating "warm" conditions and $<3$ linked to cold formation in the solid-state. We present spatially resolved ALMA observations of multiple ortho- and para-H$_2$CO transitions in the TW Hya protoplanetary disk to test H$_2$CO formation theories during planet formation. We find disk-averaged rotational temperatures and column densities of $33\pm2$ K, ($1.1\pm0.1)\times10^{12}$ cm$^{-2}$ and $25\pm2$ K, $(4.4\pm0.3)\times10^{11}$ cm$^{-2}$ for ortho- and para-H$_2$CO, respectively, and an OPR of $2.49\pm0.23$. A radially resolved analysis shows that the observed H$_2$CO emits mostly at rotational temperatures of 30-40 K, corresponding to a layer with $z/R\ge0.25$. The OPR is consistent with 3 within 60 au, the extent of the pebble disk, and decreases beyond 60 au to $2.0\pm0.5$. The latter corresponds to a spin temperature of 12 K, well below the rotational temperature. The combination of relatively uniform emitting conditions, a radial gradient in the OPR, and recent laboratory experiments and theory on OPR ratios after sublimation, lead us to speculate that gas-phase formation is responsible for the observed H$_2$CO across the TW Hya disk.
Anoplocerus elevatus
Creators: name: Valcárcel, Javier Pérez
name: Piloña, Fernando Prieto
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Anoplocerus
Anoplocerus elevatus

description: Anoplocerus elevatus (Fieber, 1861)
Citas bibliográficas:
Teruel: Teruel (Vázquez, 1985)
Zaragoza: Retuerta de Pina (Ribes et al., 1997, 1999)
description: Published as part of Valcárcel, Javier Pérez & Piloña, Fernando Prieto, 2011, Contribuciones al catálogo de la familia Coreidae Leach, 1815 (Hemiptera) de Aragón (NE de la Península Ibérica)., pp. 9-20 in Arquivos Entomolóxicos 5 on page 10, DOI: 10.5281/zenodo.11372912