cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The physical and the geometrical properties of simulated cold HI structures
Creators: name: Gazol, Adriana
name: Villagran, Marco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The objective of this paper is to help shedding some light on the nature and the properties of the cold structures formed via thermal instability in the magnetized atomic interstellar medium. To this end, we searched for clumps formed in forced (magneto)hydrodynamic simulations with an initial magnetic field ranging from 0 to 8.3$μ$G. We statistically analyzed, through the use of Kernel Density Estimations, the physical and the morphological properties of a sample containing $\sim 1500$ clumps, as well as the relative alignments between the main direction of clumps and the internal velocity and magnetic field. The density ($n\sim 50-200$cm$^{-3}$), the thermal pressure ($P_{th}/k\sim 4.9\times 10^3-10^4$K cm$^{-3}$), the mean magnetic field ($\sim 3-11$$μ$G ), and the sonic Mach number of the selected clumps have values comparable to those reported in observations. We find, however, that the cloud sample can not be described by a single regime concerning their pressure balance and their Alfénic Mach number. We measured the morphological properties of clumps mainly through the asphericity and the prolatness, which appear to be more sensitive than the aspect ratios. From this analysis we find that the presence of magnetic field, even if it is weak, does qualitatively affect the morphology of the clumps by increasing the probability of having highly aspherical and highly plolate clumps by a factor of two, that is by producing more filamentary clumps. Finally, we find that the angle between the main direction of the clumps and the local magnetic field lies between $\simπ/4-π/2$ and shifts to more perpendicular alignments as the intensity of this field increases, while the relative direction between the local density structure and the local magnetic field transits from parallel to perpendicular.
description: Accepted for publication in MNRAS
The Impact on Safety, Occupational Health, and Environment in Working for Local Wisdom Metal Handicraft Work in Bangkok Metropolitan
Creators: name: Witthaya Mekhum
name: Witaya Yoosook
name: Sint Punpinij
name: Laongtip Mathurasa
Publisher: name: National Institute of Development Administration
Year: 2008

description: 1, 48, NIDA Development Journal
A Narrative Inquiry Into Indigenous Clients’ Perspectives and Experiences of Western Psychotherapy
Creators: name: Higgison, Katherine
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2024
Subjects: Indigenous
Psychotherapy
Counselling
Narrative Inquiry

description: Indigenous Peoples in Canada experience mental health concerns at unbalanced rates compared to non-Indigenous Canadians, but Indigenous Peoples reportedly “underuse” mainstream (i.e., Western) mental health services, like psychotherapy. Understanding how to “best” attend to the mental health needs of Indigenous Peoples with psychotherapy has largely been hypothetical and theoretical, with little input from Indigenous clients themselves. The current study used a narrative inquiry methodology approach to gain insight into perspectives and experiences of Western conventional psychotherapy among Indigenous Peoples (i.e., clients) in Turtle Island (aka Canada and the United States). The research question framing the current research was: What are Indigenous clients’ narratives of Western psychotherapy? Three Indigenous individuals from urban areas in Quebec and Ontario participated in in-depth interviews. In an endeavour to contribute to social justice aims, such as social change in the context of psychotherapy with Indigenous Peoples, I used a theoretical framing that embraced a social justice and decolonizing lens. The findings conveyed the following main themes: perceptions about therapy, significance of the therapeutic connection, role of power dynamics, role of Indigenous culture, and impacts from research participation. Implications for psychotherapy as it relates to power dynamics are discussed, and potential contributions are offered in the hopes that the psychotherapy field may continue to better address the mental health needs of Indigenous Peoples in Canada through a decolonizing approach.
EB-DEVS: A Formal Framework for Modeling and Simulation of Emergent Behavior in Dynamic Complex Systems
Creators: name: Foguelman, Daniel J.
name: Henning, Philipp
name: Uhrmacher, Adelinde
name: Castro, Rodrigo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Multiagent Systems (cs.MA)
subject: Artificial Intelligence (cs.AI)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Emergent behavior is a key feature defining a system under study as a complex system. Simulation has been recognized as the only way to deal with the study of the emergency of properties (at a macroscopic level) among groups of system components (at a microscopic level), for the manifestations of emergent structures cannot be deduced from analysing components in isolation. A systems-oriented generalisation must consider the presence of feedback loops (micro components react to macro properties), interaction among components of different classes (modular composition) and layered interaction of subsystems operating at different spatio-temporal scales (hierarchical organisation). In this work we introduce Emergent Behavior-DEVS (EB-DEVS) a Modeling and Simulation (M&S) formalism that permits reasoning about complex systems where emergent behavior is placed at the forefront of the analysis activity. EB-DEVS builds on the DEVS formalism, adding upward/downward communication channels to well-established capabilities for modular and hierarchical M&S of heterogeneous multi-formalism systems. EB-DEVS takes a minimalist stance on expressiveness, introducing a small set of extensions on Classic DEVS that can cope with emergent behavior, and making both formalisms interoperable (the modeler decides which subsystems deserve to be expressed via micro-macro dynamics). We present three case studies: flocks of birds with learning, population epidemics with vaccination and sub-cellular dynamics with homeostasis, through which we showcase how EB-DEVS performs by placing emergent properties at the center of the M&S process.
description: 38 page document with: original content 25 pages, references 3 pages, appendices 10 pages
Signal Amplification in NbN Superconducting Resonators via Stochastic Resonance
Creators: name: Abdo, Baleegh
name: Arbel-Segev, Eran
name: Shtempluck, Oleg
name: Buks, Eyal
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We exploit nonlinearity in NbN superconducting stripline resonators, which is originated by local thermal instability, for studying stochastic resonance. As the resonators are driven into instability, small amplitude modulated (AM) microwave signals are amplified with the aid of injected white noise. The dependence of the signal amplification on the modulation amplitude and the modulation frequency is examined and compared with theory.
description: 4 pages, 6 figures
Reasoning from a schema and from an analog in software code reuse
Creators: name: Detienne, Françoise
Publisher: name: arXiv
Year: 2007
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The activity of design involves the decomposition of problems into subproblems and the development and evaluation of solutions. In many cases, solution development is not done from scratch. Designers often evoke and adapt solutions developed in the past. These solutions may come from an internal source, i.e. the memory of the designers, and/or from an external source. The goal of this paper is to analyse the characteristics of the cognitive mechanisms, the knowledge and the representations involved in the code reuse activity performed by experienced programmers. More generally, the focus is the control structure of the reuse activity. Data collected in an experiment in which programmers had to design programs are analyzed. Two code reuse situations are distinguished depending on whether or not the processes involved in reuse start before the elaboration of what acts as a source-solution. Our analysis highlights the use of reasoning from a schema and from an analog in the code reuse activity.
Near-horizon aspects of acceleration radiation by free fall of an atom into a black hole
Creators: name: Camblong, H. E.
name: Chakraborty, A.
name: Ordonez, C. R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A two-level atom freely falling towards a Schwarzschild black hole was recently shown to detect radiation in the Boulware vacuum in an insightful paper [M. O. Scully et al., Proc. Natl. Acad. Sci. U.S.A. 115, 8131 (2018)]. The two-state atom acts as a dipole detector and its interaction with the field can be modeled using a quantum optics approach. The relative acceleration between the scalar field and the detector causes the atom to detect the radiation. In this paper, we show that this acceleration radiation is driven by the near-horizon physics of the black hole. This insight reinforces the relevance of near-horizon conformal quantum mechanics for all the physics associated with the thermodynamic properties of the black hole. We additionally highlight the conformal aspects of the radiation that is given by a Planck distribution with the Hawking temperature.
description: 23 pages, 2 figures, Accepted to be published in PRD
title: Sinonasal rhabdomyosarcoma – An aggressive neoplasm of paediatic age group
Creators: name: Gupta, Shivangi
Publisher: name: EURORAD
Year: 2021
Subjects: subject: Paediatric radiology
subject: Head and neck
subject: Neuroradiology brain
subject: Paediatric
subject: MR
subject: Ultrasound
subject: Abscess delineation
subject: Aneurysms
subject: Arteriovenous malformations
subject: Clinical Cases

description: Clinical History: A 15-year-old female presented with progressively increasing swelling below the left eye and epistaxis ten days post- COVID-19  recovery. She has had intermittent episodes of epistaxis for three months. On examination, a reddish colour mass was seen in the left nasal cavity which did not bleed on touch. 

The patient was referred for MRI of Paranasal sinuses, orbits and brain as per our institutional protocol for all suspected COVID-19-associated rhino-orbital-cerebral mucormycosis.

description: 15 years, female
Classical Trajectories for Complex Hamiltonians
Creators: name: Bender, Carl M.
name: Chen, Jun-Hua
name: Darg, Daniel W.
name: Milton, Kimball A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It has been found that complex non-Hermitian quantum-mechanical Hamiltonians may have entirely real spectra and generate unitary time evolution if they possess an unbroken $\cP\cT$ symmetry. A well-studied class of such Hamiltonians is $H= p^2+x^2(ix)^ε$ ($ε\geq0$). This paper examines the underlying classical theory. Specifically, it explores the possible trajectories of a classical particle that is governed by this class of Hamiltonians. These trajectories exhibit an extraordinarily rich and elaborate structure that depends sensitively on the value of the parameter $ε$ and on the initial conditions. A system for classifying complex orbits is presented.
description: 24 pages, 34 figures
Long-Range Surface-Assisted Molecule-Molecule Hybridization
Creators: name: Castelli, Marina
name: Hellerstedt, Jack
name: Krull, Cornelius
name: Gicev, Spiro
name: Hollenberg, Lloyd C. L.
name: Usman, Muhammad
name: Schiffrin, Agustin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Metalated phthalocyanines (Pc's) are robust and versatile molecular complexes, whose properties can be tuned by changing their functional groups and central metal atom. The electronic structure of magnesium Pc (MgPc) - structurally and electronically similar to chlorophyll - adsorbed on the Ag(100) surface is investigated by low-temperature scanning tunneling microscopy (STM) and spectroscopy (STS), non-contact atomic force microscopy (ncAFM) and density functional theory (DFT). Single, isolated MgPc's exhibit a flat, four-fold rotationally symmetric morphology, with doubly degenerate, partially populated (due to surface-to-molecule electron transfer) lowest unoccupied molecular orbitals (LUMOs). In contrast, MgPc's with neighbouring molecules in proximity undergo a lift of LUMOs degeneracy, with a near-Fermi local density of states with reduced two-fold rotational symmetry, indicative of a long-range attractive intermolecular interaction. The latter is assigned to a surface-mediated two-step electronic hybridization process. First, LUMOs interact with Ag(100) conduction electrons, forming hybrid molecule-surface orbitals with enhanced spatial extension. Then, these delocalized molecule-surface states further hybridize with those of neighbouring molecules. This work highlights how the electronic structure of molecular adsorbates - including orbital degeneracies and symmetries - can be significantly altered via surface-mediated intermolecular hybridization, over extended distances (beyond 3 nm), having important implications for prospects of molecule-based solid-state technologies.
description: 28 pages, 4 figures; supplementary 35 pages, 19 figures
Growing Trees in Internet News Groups and Forums
Creators: name: Kujawski, Bernard
name: Holyst, Janusz A.
name: Rodgers, Geoff J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We present an empirical study of the networks created by users within internet news groups and forums and show that they organise themselves into scale-free trees. The structure of these trees depends on the topic under discussion; specialist topics have trees with a short shallow structure whereas more universal topics are discussed widely and have a deeper tree structure. For news groups we find that the distribution of the time intervals between when a message is posted and when it receives a response exhibits a composite power-law behaviour. From our statistics we can see if the news group or forum is free or is overseen by a moderator. The correlation function of activity, the number of messages posted in a given time, shows long range correlations connected with the users' daily routines. The distribution of distances between each message and its root is exponential for most news groups and power-law for the forums. For both formats we find that the relation between the supremacy (the total number of nodes that are \emph{under} the node $i$, including node $i$) and the degree is linear $s(k)\sim k$, in contrast to the analytical relation for Barabási-Albert network.
Additional file 1 of Nucleated red blood cell distribution in critically ill patients with acute pancreatitis: a retrospective cohort study
Creators: name: Liu, Huan-qin
name: Wang, Guan-qun
name: Zhang, Cheng-shuang
name: Wang, Xia
name: Shi, Ji-kui
name: Qu, Feng
name: Ruan, Hang
Publisher: name: figshare
Year: 2024
Subjects: subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Supplementary Material 1
Super-exponential distortion of subgroups of CAT(-1) groups
Creators: name: Barnard, Josh
name: Brady, Noel
name: Dani, Pallavi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 20F65 (Primary) 20F67, 57M20 (Secondary)

description: We construct 2-dimensional CAT(-1) groups which contain free subgroups with arbitrary iterated exponential distortion, and with distortion higher than any iterated exponential.
description: 6 pages, 3 figures
The fiction of Thea Astley: "To write as a male"?
Creators: name: Milnes, Stephen
Publisher: name: University of British Columbia
Year: 2009

description: In the 1980s, Thea Astley asserted that she had "to write as a male" to acquire literary acceptance in the 1950s and 1960s. In making this statement, Astley outlined what it meant to write as a male and to write as a female. The increasing critical use of these statements as an explanation for the subject matter and the style of Astley's fiction, however, ignores the gendered reception of her work, generates misconceptions regarding her early novels, undervalues the continuity of her feminist critique of what she calls the "genital loading" of Australian culture, and negates her attack on genres, narratives, and plots which constrain women. Using the theoretical work of Raymond Williams, Kaja Silverman, and Rita Felski, this thesis proposes that Astley be read not in terms of "masculine" or "feminine" writing, but in terms of her political commitment to feminism. To contextualize Astley's comment, Chapter One emphasizes the masculine bias of the literary debates in. the 1950s. Chapter Two argues that the "misfit paradigm" used to read Astley's fiction obscures the feminist and class themes of her work. To counteract the view that Astley's early fiction concentrates on male characters, Chapter Three focuses on Astley's representation in The Slow Natives (1965) of wife and prostitute, and on Astley's critique of the mutually reinforcing genres to which they belong: romance and antiromance. Chapters Four, Five, and Six examine, respectively, A Descant for Gossips (1960), An Item From the Late News (1981), and Reaching Tin River (1990). This chronological sequence establishes the consistency of her feminist critique of Australian society. It also accentuates the theme of masculinity in crisis and foregrounds the way in which critics have gendered Astley's work as feminine. These chapters consider the relation between melodrama and masculinity in A Descant for Gossips, the connection between Astley's use of the female "I" and the appearance of the transvestite in An Item From the Late News, and the political implications of the womb as a metaphor, for escape in Reaching Tin River.
Additional file 1 of Patients’ knowledge of the indications for their medications – a scoping review
Creators: name: Bülow, Cille
name: Clausen, Stine Søndersted
name: Thøgersen, Patrick Lundholm
name: Dalin, Dagmar Abelone
name: Hansen, Johanne Mølby
name: Johansson, Karl Sebastian
name: Lundh, Andreas
name: Christensen, Mikkel Bring
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Supplementary Material 1.
Simulation of astrophysical jet using the special relativistic hydrodynamics code
Creators: name: Donmez, Orhan
name: Kayali, Refik
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper describes a multidimensional hydrodynamic code which can be used for the studies of relativistic astrophysical flows. The code solves the special relativistic hydrodynamic equations as a hyperbolic system of conservation laws based on High Resolution Shock Capturing (HRSC) Scheme. Two standard tests, one of which is the relativistic blast wave tested in our previous paper\cite{DO1}, and the other is the collision of two ultrarelativistic blast waves tested in here, are presented to demonstrate that the code captures correctly and gives solution in the discontinuities, accurately. The relativistic astrophysical jet is modeled for the ultrarelativistic flow case. The dynamics of jet flowing is then determined by the ambient parameters such as densities, and velocities of the jets and the momentum impulse applied to the computational surface. We obtain solutions for the jet structure, propagation of jet during the time evolution, and variation in the Mach number on the computational domain at a fixed time.
description: 9 figures
Production experiment, subject 7
Creators: name: Lau-Preechathammarach, Raksit Tyler
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: kdt

description: Target and distractor stimuli embedded in carrier sentences. Subject is a 52-year-old female. Carried out in a quiet room in the temple of Wat Nakharin in Ban Khi Nak.
Electronic states in cylindrical core-multi-shell nanowire
Creators: name: Rudakov, A. O.
name: Kokurin, I. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The recent advances in nanowire (NW) growth technology have made possible the growth of more complex structures such as core-multi-shell (CMS) NWs. We propose the approach for calculation of electron subbands in cylindrical CMS NWs within the simple effective mass approximation. Numerical results are presented for ${\rm GaAs/Al_{0.3}Ga_{0.7}As}$ radial heterostructure with AlGaAs-core and 4 alternate GaAs and AlGaAs shells. The influence of an effective mass difference in heterolayers is discussed.
description: 3 pages, 2 figures; The paper differs from the original journal work by Eq.(8) and the surrounding text
Distribution of bipartite entanglement for random pure states
Creators: name: Giraud, Olivier
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We calculate analytic expressions for the distribution of bipartite entanglement for pure random quantum states. All moments of the purity distribution are derived and an asymptotic expansion for the purity distribution itself is deduced. An approximate expression for moments and distribution of Meyer-Wallach entanglement for random pure states is then obtained.
description: 10 pages, 2 figures
Design Procedure Development in Bulrush Reed Product Development by the Community Management: The Case Study of Tumbol Thasatorn, Amphur Phun-Phin, Surat Thani Province
Creators: name: Benchalak Muangmeesri
name: Wichai Vanpetch
name: Seri Phongphit
name: Chusak Ekpetch
Publisher: name: National Institute of Development Administration
Year: 2009

description: 3, 49, NIDA Development Journal
Modeling of fluid flow in a flexible vessel with elastic walls
Creators: name: Kozlov, V.
name: Nazarov, S.
name: Zavorokhin, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35Q30, 76D05

description: We exploit a two-dimensional model [7], [6] and [1] describing the elastic behavior of the wall of a flexible blood vessel which takes interaction with surrounding muscle tissue and the 3D fluid flow into account. We study time periodic flows in a cylinder with such compound boundary conditions. The main result is that solutions of this problem do not depend on the period and they are nothing else but the time independent Poiseuille flow. Similar solutions of the Stokes equations for the rigid wall (the no-slip boundary condition) depend on the period and their profile depends on time.
Nonparametric, data-based kernel interpolation for particle-tracking simulations and kernel density estimation
Creators: name: Benson, David A
name: Bolster, Diogo
name: Pankavich, Stephen
name: Schmidt, Michael J
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Traditional interpolation techniques for particle tracking include binning and convolutional formulas that use pre-determined (i.e., closed-form, parameteric) kernels. In many instances, the particles are introduced as point sources in time and space, so the cloud of particles (either in space or time) is a discrete representation of the Green's function of an underlying PDE. As such, each particle is a sample from the Green's function; therefore, each particle should be distributed according to the Green's function. In short, the kernel of a convolutional interpolation of the particle sample "cloud" should be a replica of the cloud itself. This idea gives rise to an iterative method by which the form of the kernel may be discerned in the process of interpolating the Green's function. When the Green's function is a density, this method is broadly applicable to interpolating a kernel density estimate based on random data drawn from a single distribution. We formulate and construct the algorithm and demonstrate its ability to perform kernel density estimation of skewed and/or heavy-tailed data including breakthrough curves.
Production experiment, subject 6
Creators: name: Lau-Preechathammarach, Raksit Tyler
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: kdt

description: Target and distractor stimuli embedded in carrier sentences. Subject is a 54-year-old female. Carried out in a quiet room in the temple of Wat Nakharin in Ban Khi Nak.
Fast high-fidelity multi-qubit state transfer with long-range interactions
Creators: name: Hong, Yifan
name: Lucas, Andrew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe an efficient protocol to perform quantum state transfer using Hamiltonian dynamics with long-range interactions. The time to transfer $n$ qubits a sufficiently large distance is proportional to $\sqrt{n}$. Even without error correction, the fidelity of this multi-qubit state transfer process remains finite for arbitrarily well-separated qubits in the presence of uncorrelated random errors in coupling constants.
description: 14 pages, 6 figures
Electrically Controllable Crystal Chirality Magneto-Optical Effects in Collinear Antiferromagnets
Creators: name: Zhou, Xiaodong
name: Feng, Wanxiang
name: Yang, Xiuxian
name: Guo, Guang-Yu
name: Yao, Yugui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The spin chirality, created by magnetic atoms, has been comprehensively understood to generate and control the magneto-optical effects. In comparison, the role of the crystal chirality that relates to nonmagnetic atoms has received much less attention. Here, we theoretically discover the crystal chirality magneto-optical (CCMO) effects, which depend on the chirality of crystal structures that originates from the rearrangement of nonmagnetic atoms. We show that the CCMO effects exist in many collinear antiferromagnets, such as RuO$_{2}$ and CoNb$_{3}$S$_{6}$, which has a local and global crystal chirality, respectively. The key character of the CCMO effects is the sign change if the crystal chirality reverses. The magnitudes of the CCMO spectra can be effectively manipulated by reorienting the Néel vector with the help of an external electric field, and the spectral integrals are found to be proportional to magnetocrystalline anisotropy energy.
description: 6 pages, 4 figs
The structure of degradable quantum channels
Creators: name: Cubitt, Toby S.
name: Ruskai, Mary-Beth
name: Smith, Graeme
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Degradable quantum channels are among the only channels whose quantum and private classical capacities are known. As such, determining the structure of these channels is a pressing open question in quantum information theory. We give a comprehensive review of what is currently known about the structure of degradable quantum channels, including a number of new results as well as alternate proofs of some known results. In the case of qubits, we provide a complete characterization of all degradable channels with two dimensional output, give a new proof that a qubit channel with two Kraus operators is either degradable or anti-degradable and present a complete description of anti-degradable unital qubit channels with a new proof. For higher output dimensions we explore the relationship between the output and environment dimensions ($d_B$ and $d_E$ respectively) of degradable channels. For several broad classes of channels we show that they can be modeled with a environment that is "small" in the sense $d_E \leq d_B$. Perhaps surprisingly, we also present examples of degradable channels with ``large'' environments, in the sense that the minimal dimension $d_E > d_B$. Indeed, one can have $d_E > \tfrac{1}{4} d_B^2$. In the case of channels with diagonal Kraus operators, we describe the subclass which are complements of entanglement breaking channels. We also obtain a number of results for channels in the convex hull of conjugations with generalized Pauli matrices. However, a number of open questions remain about these channels and the more general case of random unitary channels.
description: 42 pages, 3 figures, Web and paper abstract differ; (v2 contains only minor typo corrections)
Crack arrest through branching at curved weak interfaces: an experimental and numerical study
Creators: name: Aranda, M. T.
name: Garcia, I. G.
name: Reinoso, J.
name: Mantic, V.
name: Paggi, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The phenomenon of arrest of an unstably-growing crack due to a curved weak interface is investigated. The weak interface can produce the deviation of the crack path, trapping the crack at the interface, leading to stable crack growth for certain interface geometries. This idea could be used as a technical solution for a new type of crack arrester, with a negligible impact on the global stiffness, strength and weight of the structure. In order to exploit this concept, an experimental campaign based on photo-elasticity and digital image correlation is carried out, showing the capability of curved weak interfaces to arrest cracks. The experiment is repeated for several geometrical configurations through the modification of the interface curvature radii. The phenomenon of crack deviation and subsequent arrest at the interface is also investigated with the assistance of a computational model based on the finite element method. The computational predictions provide the rationale for the interpretation of the experimental observations, and distinguish between the different behaviour of concave and convex interfaces. Consequently, as is shown in the present study, the curved interface concept fosters new routes for the attainment of structures with enhanced fracture resistance capacities, which are of paramount importance for materials and components used in extreme conditions.
description: 19 pages, 13 figures
Additional file 1 of Peripheral-to-central extracorporeal corporeal membrane oxygenation switch in refractory cardiogenic shock patients: outcomes and bridging strategies
Creators: name: Besnard, Aurélie
name: Moyon, Quentin
name: Lebreton, Guillaume
name: Demondion, Pierre
name: Hékimian, Guillaume
name: Chommeloux, Juliette
name: Petit, Matthieu
name: Gautier, Melchior
name: Lefevre, Lucie
name: Saura, Ouriel
name: Levy, David
name: Schmidt, Matthieu
name: Leprince, Pascal
name: Luyt, Charles-Edouard
name: Combes, Alain
name: Pineton de Chambrun, Marc
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Biological Sciences not elsewhere classified
Marine Biology
Science Policy

description: Supplementary Material 1
Meteorologic parameters analysis above Dome C made with ECMWF data
Creators: name: Geissler, K.
name: Masciadri, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we present the characterization of all the principal meteorological parameters (wind speed and direction, pressure, absolute and potential temperature) extended over 25 km from the ground and over two years (2003 and 2004) above the Antarctic site of Dome C. The data set is composed by 'analyses' provided by the General Circulation Model (GCM) of the European Center for Medium Weather Forecasts (ECMWF) and they are part of the catalog MARS. A monthly and seasonal (summer and winter time) statistical analysis of the results is presented. The Richardson number is calculated for each month of the year over 25 km to study the stability/instability of the atmosphere. This permits us to trace a map indicating where and when the optical turbulence has the highest probability to be triggered on the whole troposphere, tropopause and stratosphere. We finally try to predict the best expected isoplanatic angle and wavefront coherence time employing the Richardson number maps, the wind speed profiles and simple analytical models of CN2 vertical profiles.
description: 28 pages, 14 figures, pdf file, to be published on July 2006 - PASP, see also http://www.arcetri.astro.it/~masciadr
Collective excitations in the tetravalent lanthanide honeycomb antiferromagnet, Na2PrO3
Creators: name: Daum, Marcus J.
name: Ramanathan, Arun
name: Kolesnikov, Alexander I.
name: Calder, Stuart A.
name: Mourigal, Martin
name: La Pierre, Henry S.
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: Thermomagnetic and inelastic neutron scattering measurements on Na2PrO3 are reported. This material is an antiferromagnetic honeycomb magnet based on the tetravalent lanthanide Pr4+ and has been proposed to host dominant antiferromagnetic Kitaev interactions. These measurements reveal magnetic fluctuations in Na2PrO3 below an energy of 2 meV as well as crystal-field excitations around 230 meV. The latter energy is comparable to the scale of the spin-orbit interaction and explains both the very small effective moment of around 1.0 μB per Pr4+ and the difficulty to uncover any static magnetic scattering below the ordering transition at TN = 4.6 K. By comparing the low-energy magnetic excitations in Na2PrO3 to that of the isostructural spin-only compound, Na2TbO3, a microscopic model of exchange interactions is developed that implicates dominant and surprisingly large Heisenberg exchange interactions J approximately equal to 1.1(1) meV. Although antiferromagnetic Kitaev interactions with K less than or equal to 0.2J cannot be excluded, the inelastic neutron scattering data of Na2PrO3 is best explained with a delta = 1.24(2) easy-axis XXZ exchange anisotropy.
description: 5 pages, 3 figures; Supplementary Information available on request
Marketing and Consumer Behavior in the Digital Environment
Creators: name: Ivan Lapuemte, Garrido
Publisher: name: Zenodo
Year: 2024

description: Special issue on:

Marketing and Consumer Behavior in the Digital Environment

 

IMPORTANT DATES:

Submission of Full Paper: until July 31, 2024.

Initial decision sent to authors: until November 31, 2024

Deadline for revised papers: February 28, 2025

Notification of acceptance: until March 30, 2025

Deadline for final versions: May 31, 2025

 

Guest Editors:

 Dr. Valter Afonso Vieira

Universidade Estadual de Maringá, Brazil (vavieira@uem.br)

 

  Dr. Edvan Cruz Aguiar

Universidade Federal de Campina Grande, Brazil (edvan.aguiar@ufcg.edu.br )

 

Dr. Marcia Christina Ferreira 

University of Essex, United Kingdom (christina.ferreira@essex.ac.uk)

 

Dr. Marlon Dalmoro

NOVA IMS Information Management School, Portugal and Universidade do Vale do Taquari, Brazil (marlon.dalmoro@univates.br )

 

BAR Editor-in-Chief:

Dr. Ivan Lapuente Garrido

Universidade do Vale do Rio dos Sinos, Business and Management School, Brazil

(bar-eic@anpad.org.br)
Fractional Fokker-Planck Equation for Fractal Media
Creators: name: Tarasov, Vasily E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We consider the fractional generalizations of equation that defines the medium mass. We prove that the fractional integrals can be used to describe the media with noninteger mass dimensions. Using fractional integrals, we derive the fractional generalization of the Chapman-Kolmogorov equation (Smolukhovski equation). In this paper fractional Fokker-Planck equation for fractal media is derived from the fractional Chapman-Kolmogorov equation. Using the Fourier transform, we get the Fokker-Planck-Zaslavsky equations that have fractional coordinate derivatives. The Fokker-Planck equation for the fractal media is an equation with fractional derivatives in the dual space.
description: 17 pages
Electronic states in nanowires with hexagonal cross-section
Creators: name: Kokurin, I. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The electron spectrum in a uniform nanowire with a hexagonal cross-section is calculated by means of a numerical diagonalization of the effective-mass Hamiltonian. Two basis sets are utilized. The wave-functions of low-lying states are calculated and visualized. The approach has an advantage over mesh methods based on finite-differences (or finite-elements) schemes: non-physical solutions do not arise. Our scheme can be easily generalized to the case of multi-band (Luttinger or Kane) ${\bf k}\cdot{\bf p}$ Hamiltonians. The external fields (electrical, magnetic or strain) can be consistently introduced into the problem as well.
description: 3 pages, 2 figures
Call for Papers: Marketing and Consumer Behavior in the Digital Environment
Creators: name: Garrido, Ivan Lapuente
Publisher: name: Zenodo
Year: 2024

description: Special issue on: Marketing and Consumer Behavior in the Digital Environment

 

IMPORTANT DATES:

Submission of Full Paper: until July 31, 2024.Initial decision sent to authors: until November 31, 2024Deadline for revised papers: February 28, 2025Notification of acceptance: until March 30, 2025Deadline for final versions: May 31, 2025

 

Guest Editors:

 Dr. Valter Afonso VieiraUniversidade Estadual de Maringá, Brazil (vavieira@uem.br)

Dr. Edvan Cruz AguiarUniversidade Federal de Campina Grande, Brazil (edvan.aguiar@ufcg.edu.br)

Dr. Marcia Christina Ferreira University of Essex, United Kingdom (christina.ferreira@essex.ac.uk)

Dr. Marlon DalmoroNOVA IMS Information Management School, Portugal and Universidade do Vale do Taquari, Brazil (marlon.dalmoro@univates.br)

 

BAR Editor-in-Chief:

Dr. Ivan Lapuente GarridoUniversidade do Vale do Rio dos Sinos, Business and Management School, Brazil (bar-eic@anpad.org.br)
Progress in Understanding the Nuclear Equation of State at the Quark Level
Creators: name: Thomas, AW
name: Guichon, PAM
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: At the present time there is a lively debate within the nuclear community concerning the relevance of quark degrees of freedom in understanding nuclear structure. We outline the key issues and review the impressive progress made recently within the framework of the quark-meson coupling model. In particular, we explain in quite general terms how the modification of the internal structure of hadrons in-medium leads naturally to three- and four-body forces, or equivalently, to density dependent effective interactions.
description: Invited presentation at XXX Symposium on Nuclear Physics, Hacienda Cocoyoc, Jan. 3-6, 2007
The Teocalli of Tenochtitlan : a digital interpretation of the Aztec Ceremonial Precinct
Creators: name: Garcia Ocampo De Rivera, Antonieta Maria De La Paz
Publisher: name: University of British Columbia
Year: 2009

description: This thesis is an original interpretation of the Teocalli or Ceremonial Precinct of Tenochtitlan, the religious and political center of the Aztec Empire. The reconstruction was based on several types of sources, including: [1] historical (the accounts written by the conquistadors -Hernan Cortes and Bernal Diaz del Castillo- and the chronicles compiled by the missionaries -Fray Bernardino de Sahagun and Fray Diego Duran-);. [2] iconographical (the Codex Borbonicus, the Nuremberg Map, and the Primeros Memoriales Plan); and [3] archaeological materials (the 'Cathedral' and the 'Templo Mayor' excavations). Digital models were constructed by taking into consideration Aztec archaeoastronomical principles and measuring systems. The result is the most accurate and inclusive view of the Ceremonial Precinct since Tenochtitlan was destroyed more than five centuries ago. This research project is being presented in digital form in lieu of the conventional research paper. The organization of materials and findings into a multimedia format was particularly appealing due to its interactive character. The Aztec conception of the universe divided into layers was used as the metaphor for the digital design, therefore the interactive design was divided into six 'layers': [1] An 'Introduction' that defined the research project and the multimedia format; [2] 'The History and Culture of the Aztecs' that provided the cultural background; [3] 'The Role of Archaeoastronomy in Architecture' that explained the archaeoastronomical principles (concepts of positional astronomy employed in ancient Mesoamerican architecture) and the Aztec measuring systems; [4] 'The Digital Interpretations' that gave the user the option of exploring the Ceremonial Precinct either by source or by architectural element; [5] 'The Bibliography' that covered credits from books, images, and sound; and [6] 'Glossaries' that would help the user to understand terms, chronology and ceremonies of the Aztecs. The results of this thesis are of interest to a wide range of disciplines, since it offers not only one of the most accurate views of the Ceremonial Precinct of Tenochtitlan, but it also demonstrates the application of archaeoastronomical and geometrical principles for reconstructing Aztec architecture.
Explicit monodromy of Moore-Read wave functions on a torus
Creators: name: Chung, Suk Bum
name: Stone, Michael
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We construct the wave functions for the Moore-Read $ν= 5/2$ quantum Hall state on a torus in the presence of two quasiholes. These explicit wave functions allow us to compute the monodromy matrix that describes the effect of quasihole motion on the space of degenerate ground states. The result agrees with the recent discussion by Oshikawa {\it et al.} Our calculation provides a conformal field theory explanation of why certain transitions between ground states are forbidden. It is because taking a quasihole around a generator of the torus can change the fusion channel of the two quasiholes, and this requires a change of parity of the electron number in some of the ground states.
description: 34 pages, latex References updated, grammar and typos corrected
The replacement system of the JUNO liquid scintillator pilot experiment at Daya Bay
Creators: name: Yan, Wenqi
name: Hu, Tao
name: Zhou, Li
name: Cao, Jun
name: Cai, Xiao
name: Fang, Jian
name: Sun, Lijun
name: Yu, Boxiang
name: Sun, Xilei
name: Yu, Zeyuan
name: Ding, Yayun
name: Liu, Mengchao
name: Ma, Xiaoyan
name: Qian, Xiaohui
name: Liu, Wanjin
name: Xie, Yuguang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Jiangmen Underground Neutrino Observatory (JUNO), a multi-purpose neutrino experiment, will use 20 kt liquid scintillator (LS). To achieve the physics goal of determining the neutrino mass ordering, 3$\%$ energy resolution at 1 MeV is required. This puts strict requirements on the LS light yield and the transparency. Four LS purification steps have been designed and mid-scale plants have been built at Daya Bay. To examine the performance of the purified LS and find the optimized LS composition, the purified LS was injected to the antineutrino detector 1 in the experimental hall 1 (EH1-AD1) of the Daya Bay neutrino experiment. To pump out the original gadolinium loaded LS and fill the new LS, a LS replacement system has been built in EH1 in 2017. By replacing the Gd-LS with purified water, then replacing the water with purified LS, the replacement system successfully achieved the designed goal. Subsequently, the fluorescence and the wavelength shifter were added to higher concentrations via the replacement system. The data taken at various LS compositions helped JUNO determine the final LS cocktail. Details of the design, the construction, and the operation of the replacement system are reported in this paper.
description: 16 pages, 10 figures
From QCD at high energy to statistical physics and back
Creators: name: Soyez, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In these proceedings, we shall first recall the evolution equations arising when increasing the rapidity $Y=\log(s)$ within the perturbative QCD regime. We shall then summarise the main properties on their asymptotic solutions and discuss the physical picture emerging from our analysis.
description: 4 pages, talk presented at the DIS2006 meeting, April 19-24, Tsukuba, Japan
Self-organized critical behavior: the evolution of frozen spin networks model in quantum gravity
Creators: name: Chen, Jian-Zhen
name: Zhu, Jian-Yang
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In quantum gravity, we study the evolution of a two-dimensional planar open frozen spin network, in which the color (i.e. the twice spin of an edge) labeling edge changes but the underlying graph remains fixed. The mainly considered evolution rule, the random edge model, is depending on choosing an edge randomly and changing the color of it by an even integer. Since the change of color generally violate the gauge invariance conditions imposed on the system, detailed propagation rule is needed and it can be defined in many ways. Here, we provided one new propagation rule, in which the involved even integer is not a constant one as in previous works, but changeable with certain probability. In random edge model, we do find the evolution of the system under the propagation rule exhibits power-law behavior, which is suggestive of the self-organized criticality (SOC), and it is the first time to verify the SOC behavior in such evolution model for the frozen spin network. Furthermore, the increase of the average color of the spin network in time can show the nature of inflation for the universe.
description: 5 pages, 5 figures