cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Designing cardiovascular physiology practical with students as partners
Creators: name: Chan, Enoch
name: Chui, Noreen Nog-Qin
name: Cheuk Lun Wong
name: Yuet Yi Hung
Publisher: name: F1000 Research Limited
Year: 2024

description: Background

Traditional basic science practicals are perceived by health professionals students to be irrelevant, which is detrimental to their motivation to learn. It is imperative to ensure that physiology practicals are fit for purpose for healthcare students.

Summary of work

We partnered with three medical students to design a 3-hour practical class, using an open-source simulation of rat cardiovascular system (RatCVS) developed by John Dempster, University of Strathclyde.

The first half of the practical class was teacher-guided, where students preformed pre-set experiments with a step-to-step protocol and questions that guide their data interpretation. Afterwards, students were taught how to design simple pharmacological experiments, and then designed experiments to investigate how to control blood pressure for a patient with pheochromocytoma. The teacher then provided feedback accordingly to students’ findings.

The practical was formally taught to first-year medical students. It was evaluated using an online survey adapted from validated instruments for evaluating situational motivation and perceived usefulness of the learning activity.

Summary of results

A total of 317 surveys was disseminated, and 57 valid responses were received (response rate=17.98%). For situational motivation (7-point Likert scale), the mean scores (± SD) for intrinsic motivation (IM), identified regulation (IR), external regulation (ER) and amotivation (AM) were 5.1 (±1.1), 5.5 (±0.9), 4.5 (±1.1) and 2.8 (±1.1), respectively.

When asked to self-rate their understanding of the topic before and after the activity in a score out of 10, the mean score (± SD) before the activity was 4.9 (±1.6), and after the activity was 7.0 (±1.5). The increment was statistically significant (p < 0.001). The survey respondents also perceived they learnt knowledge relevant for their future work.

Discussion and Conclusion

The results demonstrate that self-motivation was prominent amongst the survey respondents; and the practical was useful in improving conceptual understanding and teaching work-relevant knowledge to medical students. This provides the proof of principle that engaging students as partners to design physiology practical is rewarding.

Take-home message

Engaging students as partners is learning design is useful for ensuring an activity is fit for purpose for the target student groups.
Perfecting the Ultra-violet of Holographic Descriptions of QCD
Creators: name: Evans, Nick
name: Tedder, Andrew
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate imposing a UV cutoff into a simple AdS/QCD model of the rho mesons. The cutoff corresponds to the scale at which QCD moves from perturbative to non-perturbative behaviour, above which the gravity dual will itself become strongly coupled. Simply imposing a cutoff significantly improves the fit to the masses of the tower of excited rho mesons. Formally one should match the couplings of higher dimension operators and the anomalous dimensions of fields to the QCD values at the cutoff. We explore examples of these matchings including looking at the anomalous dimensions of the qbar gamma^mu q operators and including a G Tr F^4 coupling.
description: 10 pages, 2 figures
Pandemic Drugs at Pandemic Speed: Infrastructure for Accelerating COVID-19 Drug Discovery with Hybrid Machine Learning- and Physics-based Simulations on High Performance Computers
Creators: name: Bhati, Agastya P.
name: Wan, Shunzhou
name: Alfè, Dario
name: Clyde, Austin R.
name: Bode, Mathis
name: Tan, Li
name: Titov, Mikhail
name: Merzky, Andre
name: Turilli, Matteo
name: Jha, Shantenu
name: Highfield, Roger R.
name: Rocchia, Walter
name: Scafuri, Nicola
name: Succi, Sauro
name: Kranzlmüller, Dieter
name: Mathias, Gerald
name: Wifling, David
name: Donon, Yann
name: Di Meglio, Alberto
name: Vallecorsa, Sofia
name: Ma, Heng
name: Trifan, Anda
name: Ramanathan, Arvind
name: Brettin, Tom
name: Partin, Alexander
name: Xia, Fangfang
name: Duan, Xiaotan
name: Stevens, Rick
name: Coveney, Peter V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Machine Learning (cs.LG)
subject: Biological Physics (physics.bio-ph)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The race to meet the challenges of the global pandemic has served as a reminder that the existing drug discovery process is expensive, inefficient and slow. There is a major bottleneck screening the vast number of potential small molecules to shortlist lead compounds for antiviral drug development. New opportunities to accelerate drug discovery lie at the interface between machine learning methods, in this case developed for linear accelerators, and physics-based methods. The two in silico methods, each have their own advantages and limitations which, interestingly, complement each other. Here, we present an innovative infrastructural development that combines both approaches to accelerate drug discovery. The scale of the potential resulting workflow is such that it is dependent on supercomputing to achieve extremely high throughput. We have demonstrated the viability of this workflow for the study of inhibitors for four COVID-19 target proteins and our ability to perform the required large-scale calculations to identify lead antiviral compounds through repurposing on a variety of supercomputers.
Lattice QCD equation of state at finite chemical potential from an alternative expansion scheme
Creators: name: Borsanyi, S.
name: Fodor, Z.
name: Guenther, J. N.
name: Kara, R.
name: Katz, S. D.
name: Parotto, P.
name: Pasztor, A.
name: Ratti, C.
name: Szabo, K. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Taylor expansion of the equation of state of QCD suffers from shortcomings at chemical potentials $μ_B \geq (2-2.5)T$. First, one faces difficulties inherent in performing such an expansion with a limited number of coefficients; second, higher order coefficients determined from lattice calculations suffer from a poor signal-to-noise ratio. In this work, we present a novel scheme for extrapolating the equation of state of QCD to finite, real chemical potential that can extend its reach further than previous methods. We present continuum extrapolated lattice results for the new expansion coefficients and show the thermodynamic observables up to $μ_B/T\le3.5$.
description: 13 pages, 10 figures
Graphical description of the action of Clifford operators on stabilizer states
Creators: name: Elliott, Matthew B.
name: Eastin, Bryan
name: Caves, Carlton M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a graphical representation of stabilizer states and translate the action of Clifford operators on stabilizer states into graph operations on the corresponding stabilizer-state graphs. Our stabilizer graphs are constructed of solid and hollow nodes, with (undirected) edges between nodes and with loops and signs attached to individual nodes. We find that local Clifford transformations are completely described in terms of local complementation on nodes and along edges, loop complementation, and change of node type or sign. Additionally, we show that a small set of equivalence rules generates all graphs corresponding to a given stabilizer state; we do this by constructing an efficient procedure for testing the equality of any two stabilizer graphs.
description: 14 pages, 8 figures. Version 2 contains significant changes. Submitted to PRA
Anomalously Slow Domain Growth in Fluid Membranes with Asymmetric Transbilayer Lipid Distribution
Creators: name: Laradji, Mohamed
name: Kumar, P. B. Sunil
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The effect of asymmetry in the transbilayer lipid distribution on the dynamics of phase separation in fluid vesicles is investigated numerically for the first time. This asymmetry is shown to set a spontaneous curvature for the domains that alter the morphology and dynamics considerably. For moderate tension, the domains are capped and the spontaneous curvature leads to anomalously slow dynamics, as compared to the case of symmetric bilayers. In contrast, in the limiting cases of high and low tensions, the dynamics proceeds towards full phase separation.
description: 4 pages, 5 figures
When quantum state tomography benefits from willful ignorance
Creators: name: Motka, L.
name: Paur, M.
name: Rehacek, J.
name: Hradil, Z.
name: Sanchez-Soto, L. L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that quantum state tomography with perfect knowledge of the measurement apparatus proves to be, in some instances, inferior to strategies discarding all information about the measurement at hand, as in the case of data pattern tomography. In those scenarios, the larger uncertainty about the measurement is traded for the smaller uncertainty about the reconstructed signal. This effect is more pronounced for minimal or nearly minimal informationally complete measurement settings, which are of utmost practical importance.
description: 9 pages, 3 figures. Comments welcome!
Multi-particle quantum walks and Fisher information in one-dimensional lattices
Creators: name: Cai, Xiaoming
name: Yang, Hongting
name: Shi, Hai-Long
name: Li, Chao-Hong
name: Andrei, Natan
name: Guan, Xi-Wen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Recent experiments on quantum walks (QWs) of a single and two particles demonstrated subtle quantum statistics-dependent walks in one-dimensional (1D) lattices. However the roles of interaction and quantum statistics in such a kind of walks are little known at a many-body level. In this letter, using time-evolving block decimation algorithm and many-body perturbation theory we rigorously study QWs, Bloch oscillations and quantum Fisher informations (FIs) for three indistinguishable bosons and fermions in 1D lattices. We show that such strongly correlated many-body QWs not only give rise to statistics-and-interaction-dependent ballistic transports of scattering states, two- and three-body bound states, but also present a quantum enhanced precision measurement of the gravitational force. It turns out that in contrast to the walks of the fermions, the QWs of three bosons exhibit richer dynamics of co-walkings and competitive Bloch oscillations, which remarkably present a surprising time scaling $t^3$ of FI below a characteristic time $t_0$ and saturate to the fundamental limit of $t^2$ for $t>t_0$.
description: 6+16 pages, 5+11 figures
A note on the moduli-induced gravitino problem
Creators: name: Shuhmaher, Natalia
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The cosmological moduli problem has been recently reconsidered. Papers [1,2] show that even heavy moduli (m_ϕ> 10^5 GeV) can be a problem for cosmology if a branching ratio of the modulus into gravitini is large. In this paper, we discuss the tachyonic decay of moduli into the Standard Model's degrees of freedom, e.g. Higgs particles, as a resolution to the moduli-induced gravitino problem. Rough estimates on model dependent parameters set a lower bound on the allowed moduli at around 10^8 ~ 10^9 GeV.
description: 6 pages, references added, identical to the published version
Conceptions of instruction in the workplace
Creators: name: Beno, Jane E.
Publisher: name: University of British Columbia
Year: 2008

description: This research project investigated the question, What are the qualitatively different conceptions of instruction held by instructors of adults in the workplace? The research approach of phenomenography was used to discover how instructors of adults interpreted their instructional experiences. The sample studied consisted of twenty-two members of the Puget Sound Chapter of the American Society for Training and Development who were trainers in various workplace settings. The respondents' understandings of instruction were sought through semi-structured interviews that focused on one of their instructional experiences. Three conceptions were found through an iterative process of examining units of meaning in the context of the individual interview and the context of all the interviews. The global meaning of each conception is: instruction is (a) imparting information to learners who receive and apply it on the job (Transmission Conception), (b) assisting learners to share and apply ideas and experiences (Enablement Conception), and (c) involving learners in an experiential process of discovering and constructing meaning (Constructive Conception). The structure of each conception was then analyzed to maximize the differences among them. Several findings emerged: (a) each conception had several components that were more clearly about learning than about instruction; (b) all the conceptions had one structural component that was the same - learning involves applying new knowledge on the job -suggesting that this may be an essential component of instruction in the workplace; and (c)two characteristics of meaning and connectedness appear to divide the conceptions placing the Transmission and Enablement Conceptions on one side and the Constructive Conception on the other. It was concluded that (a) there are more than the two dichotomous ways of viewing the instruction of adults that is suggested in the literature (teacher-controlled and collaborative); (b) there appears to be a generic conception of instruction common to many settings, that instruction is about transmitting information; (c) understandings of knowledge are related to conceptions of instruction; and (d) the context in which instruction occurs is a framing factor for thinking about instruction. The set of conceptions that was found can be used to study instructors' thinking about instruction in other settings as well as for their training and ongoing development.
Luttinger sum rule for finite systems of correlated electrons
Creators: name: Kokalj, J.
name: Prelovsek, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The validity of the Luttinger sum rule is considered for finite systems of interacting electrons, where the Fermi volume is determined by location of zeroes of Green's function. It is shown that the sum rule in the paramagnetic state is evidently violated within the planar t-J model at low doping while for the related Hubbard model, even in the presence of next-nearest-neighbor hopping, no clearcut exception is found.
description: 4 pages, 1 figure
Discrete approximations to reflected Brownian motion
Creators: name: Burdzy, Krzysztof
name: Chen, Zhen-Qing
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60F17 (Primary) 60J60, 60J10, 31C25 (Secondary)

description: In this paper we investigate three discrete or semi-discrete approximation schemes for reflected Brownian motion on bounded Euclidean domains. For a class of bounded domains $D$ in $\mathbb{R}^n$ that includes all bounded Lipschitz domains and the von Koch snowflake domain, we show that the laws of both discrete and continuous time simple random walks on $D\cap2^{-k}\mathbb{Z}^n$ moving at the rate $2^{-2k}$ with stationary initial distribution converge weakly in the space $\mathbf{D}([0,1],\mathbb{R}^n)$, equipped with the Skorokhod topology, to the law of the stationary reflected Brownian motion on $D$. We further show that the following ``myopic conditioning'' algorithm generates, in the limit, a reflected Brownian motion on any bounded domain $D$. For every integer $k\geq1$, let $\{X^k_{j2^{-k}},j=0,1,2,...\}$ be a discrete time Markov chain with one-step transition probabilities being the same as those for the Brownian motion in $D$ conditioned not to exit $D$ before time $2^{-k}$. We prove that the laws of $X^k$ converge to that of the reflected Brownian motion on $D$. These approximation schemes give not only new ways of constructing reflected Brownian motion but also implementable algorithms to simulate reflected Brownian motion.
description: Published in at http://dx.doi.org/10.1214/009117907000000240 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Lagrangian description of the radiation damping
Creators: name: Barone, P. M. V. B.
name: Mendes, A. C. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present a Lagrangian formalism to the dissipative system of a charge interacting with its own radiation field, which gives rise to the radiation damping \cite{Heitler}, by the indirect representation doubling the phase-space dimensions.
description: 3 pages
Gravitational waves during inflation in presence of a decaying cosmological parameter from a 5D vacuum theory of gravity
Creators: name: Martinez, Silvina Paola Gomez
name: Aguilar, Jose Edgar Madriz
name: Bellini, Mauricio
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study gravitational waves generated during the inflationary epoch in presence of a decaying cosmological parameter on a 5D geometrical background which is Riemann flat. Two examples are considered, one with a constant cosmological parameter and the second with a decreasing one.
description: accepted in Phys. Lett. B
Extracting nucleon strange and anapole form factors from world data
Creators: name: Young, R. D.
name: Roche, J.
name: Carlini, R. D.
name: Thomas, A. W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The complete world set of parity violating electron scattering data up to Q^2~0.3 GeV^2 is analysed. We extract the current experimental determination of the strange electric and magnetic form factors of the proton, as well as the weak axial form factors of the proton and neutron, at Q^2 = 0.1 GeV^2. Within experimental uncertainties, we find that the strange form factors are consistent with zero, as are the anapole contributions to the axial form factors. Nevertheless, the correlation between the strange and anapole contributions suggest that there is only a small probability that these form factors all vanish simultaneously.
description: 4 pages, 3 figs; v2: version to appear in PRL
Η ανάσταση των νεκρών κατά τον Ιωάννη Χρυσόστομο
Creators: name: Kostic, Nikola Slobodan (Κόστιτς, Νίκολα Σλομπόνταν)
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Άγιος Ιωάννης Χρυσόστομος
Ανάσταση των νεκρών
Εσχατολογία
Saint John Chrysostom
Resurrection of the dead
Εschatology

description: Στην Χριστιανική παράδοση η εσχατολογία ποτέ δεν αποτέλεσε τελευταίο κεφάλαιο στο μέρος της δογματικής θεολογίας. Υπήρχε, υπάρχει και θα συνεχίσει να υπάρχει ως ένα σύνολο το οποίο συνοδεύει όλη την ιστορία. Εάν θα θέλαμε να μιλήσουμε για την αρχή και το τέλος του κόσμου, τότε θα λέγαμε ότι η εσχατολογία βρίσκεται στο τέλος. Όμως, στην χριστιανική-βιβλική σκέψη το τέλος προσδιορίζει την αρχή και αυτή η αρχή είναι η ανάσταση. Χωρίς την εσχατολογία η ιστορία θα ήταν μια ροή διαφόρων γεγονότων τα οποία δεν θα είχαν ούτε σημασία, ούτε σκοπό. Έτσι, η εσχατολογία στην καθημερινότητά μας, σημαίνει πίστη στην ανάσταση και πίστη στην αιώνια ζωή. Στόχος της παρούσας μελέτης είναι, αφενός η παρουσίαση της Ορθόδοξης Χριστιανικής διδασκαλίας περί των εσχάτων, μέσα από τα έργα του αγίου Ιωάννου του Χρυσοστόμου και αφετέρου η ανάδειξη της δογματικής σκέψης του συγκεκριμένου Πατέρα της Εκκλησίας
description: Ιn Christian tradition, eschatology has never been portrayed as the last part of dogmatic theology, although it represents the end, or more precisely the beginning, and that beginning is its central part, Resurrection. Therefore, it encompasses the Christian thought as an entirety which follows the course of history and proves thas it is (the thought) essentially and purely eschatological. The essay does not tend to urge the readers to accept the above view points, nor to gain them in their deliberations, but it has two goals. First of all, it tries, based on Orthodox Christian teachings, primarily in the work of Saint John Chrysostom, to explain the eschatone, or, more precisely, the resurrection of the dead. Secondly, this essay has for its goal to prove that one of the greatest Father of the Church has written thematically, not only about the ethical meaning of mankind salvation, but also the dogmatic, which represents the basis of his entire teaching
A regularity upgrade of pressure
Creators: name: Li, Dong
name: Zhang, Xiaoyi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q31 (35B65 76B03)

description: For the incompressible Euler equations the pressure formally scales as a quadratic function of velocity. We provide several optimal regularity estimates on the pressure by using regularity of velocity in various Sobolev, Besov and Hardy spaces. Our proof exploits the incompressibility condition in an essential way and is deeply connected with the classic Div-Curl lemma which we also generalise as a fractional Leibniz rule in Hardy spaces. To showcase the sharpness of results, we construct a class of counterexamples at several end-points.
description: 23 pages
The Detection of Far Ultraviolet Line Emission from Balmer-Dominated Supernova Remnants in the Large Magellanic Cloud
Creators: name: Ghavamian, Parviz
name: Blair, William P.
name: Sankrit, Ravi
name: Hughes, John P.
name: Raymond, John C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first far ultraviolet (FUV) spectra of the four known Balmer-dominated supernova remnants (SNRs) in the Large Magellanic Cloud, acquired with the Far Ultraviolet Spectroscopic Explorer. The remnants DEM L 71 (0505-67.9), 0509-67.5, 0519-69.0 and 0548-70.4 are all in the non-radiative stages of evolution and exhibit expansion speeds ranging from ~ 500 km/s to ~ 5000 km/s. We have detected broad emission lines of Ly beta, Ly gamma, C III and O VI in DEM L 71 (V(FWHM) ~ 1000 km/s) and have detected broad Ly beta and O VI emission in 0519-69.0, (V(FWHM) ~ 3000 km/s). In addition, broad Ly beta emission (V(FWHM) ~ 3700 km/s) has been observed in 0509-67.5, the first detection of broad line emission from this SNR. No emission was detected in our FUSE spectrum of 0548-70.4, allowing us to place only upper limits on the FUV line fluxes. The spectra of these SNRs are unaffected by postshock cooling, and provide valuable probes of collisionless heating efficiency in high Mach number shocks. We have used the Ly beta / O VI flux ratio and relative widths of the broad Ly beta and O VI lines to estimate the degree of electron-proton and proton-oxygen ion equilibration in DEM L 71, 0509-67.5, and 0519-69.0. Although our equilibration estimates are subject to considerable uncertainty due to the faintness of the FUV lines and contributions from bulk Doppler broadening, our results are consistent with a declining efficiency of electron- proton and proton-oxygen ion equilibration with increasing shock speed. From our shock velocity estimates we obtain ages of 295-585 years for 0509-67.5 and 520-900 years for 0519-69.0, respectively, in good agreement with the ages obtained from SN light echo studies.
description: 13 pages, 3 tables, 9 figures in emulateapj format, Accepted by ApJ
An impact study of the educational experience on the financial, employment and educational development of graduates of the Douglas College business programs
Creators: name: Cheung, Hilary D.
Publisher: name: University of British Columbia
Year: 2008

description: Douglas College Business Program students have graduated for the past twenty-two years. This study was undertaken to examine three specific aspects of the 'impact' that the Douglas College educational experience has had on these business graduates. Impact, as defined by Alfred (1982), is the sum total of outcomes, changes and benefits produced by a college. Through the use of Astin's model of the components of the process of higher education, specific outcomes related to employment, finances and further educational development were investigated. A survey was conducted of graduates from selected business programs from the years 1981 and 1986. Analyses were carried out to determine outcomes of having graduated from a Douglas College business program. It was found that the Douglas College business program graduates experienced positive outcomes related to employment, finances, and pursuit of further education. Graduates perceived that the benefits related to employment were more important than other benefits related to their educational experience.
title: Niecodzienna codzienność. Nie tylko o jednym wierszu Juliana Tuwima
Creators: name: Sioma, Radosław
Publisher: name: Instytut Socjologii Uniwersytetu Wrocławskiego
Year: 2018

description: Artykuł jest interpretacją wiersza Juliana Tuwima Życie codzienne, w którym poeta odsłania wyjątkowość codzienności, jej niepojętość i tajemnicę. Lektura wiersza odwołuje się do innych utworów poetyckich (Zbigniewa Herberta, Jerzego Lieberta, Krystyny Miłobędzkiej), a przeprowadzona zostaje przy pomocy opozycyjnych kategorii poręczności rzeczy i ich istnienia (Martin Heidegger), komunikacji (Søren Kierkegaard/Michał Paweł Markowski), niesamowitości (Zygmunt Freud) i epifanii literackiej (Ryszard Nycz). W ostatecznym rachunku poezja jawi się jako próba poszukiwania języka dla niepojętości („jedyności” – Józef Czechowicz) świata, która zanika wskutek rutynizujących mechanizmów konstruowania „rzeczywistości codziennej” (opisanych przez Petera L. Bergera i Thomasa Luckmana).
Electronic transport in inhomogeneous quantum wires
Creators: name: Rech, J.
name: Matveev, K. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the transport properties of a long non-uniform quantum wire where the electron-electron interactions and the density vary smoothly at large length scales. We show that these inhomogeneities lead to a finite resistivity of the wire, due to a weak violation of momentum conservation in the collisions between electrons. Estimating the rate of change of momentum associated with non-momentum-conserving scattering processes, we derive the expression for the resistivity of the wire in the regime of weakly interacting electrons and find a contribution linear in temperature for a broad range of temperatures below the Fermi energy. By estimating the energy dissipated throughout the wire by low-energy excitations, we then develop a different method for deriving the resistivity of the wire, which can be combined with the bosonization formalism. This allows us to compare our results with previous works relying on an extension of the Tomonaga-Luttinger model to inhomogeneous systems.
description: 18 pages, 2 figures. Invited paper for special issue of Journal of Physics: Condensed Matter on "The 0.7 Feature and Interactions in One-dimensional Systems"
Computable Rényi mutual information: Area laws and correlations
Creators: name: Scalet, Samuel O.
name: Alhambra, Álvaro M.
name: Styliaris, Georgios
name: Cirac, J. Ignacio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The mutual information is a measure of classical and quantum correlations of great interest in quantum information. It is also relevant in quantum many-body physics, by virtue of satisfying an area law for thermal states and bounding all correlation functions. However, calculating it exactly or approximately is often challenging in practice. Here, we consider alternative definitions based on Rényi divergences. Their main advantage over their von Neumann counterpart is that they can be expressed as a variational problem whose cost function can be efficiently evaluated for families of states like matrix product operators while preserving all desirable properties of a measure of correlations. In particular, we show that they obey a thermal area law in great generality, and that they upper bound all correlation functions. We also investigate their behavior on certain tensor network states and on classical thermal distributions.
description: 15 pages, 2 figures, comments welcome
title: Calabaza, Zapallo :
title: Directrices para la ejecución del examen de la distinción, la homogeneidad y la estabilidad.
titleType: Subtitle
Creators: name: International Union For The Protection Of New Varieties Of Plants,
Publisher: name: International Union for the Protection of New Varieties of Plants,
Year: 0
Subjects: Pumpkin
Group identity.
New Varieties of Plants

description: La finalidad de estas directrices (“directrices de examen”) es elaborar los principios que figuran en la Introducción General (documento TG/1/3) y sus documentos TGP conexos, con objeto de que sirvan de orientación práctica y detallada para el examen armonizado de la distinción, homogeneidad y estabilidad (DHE) y en particular, para identificar los caracteres apropiados para el examen DHE y producir descripciones armonizadas de variedades.
Ηλεκτρονική Διακυβέρνηση: Ανασχεδιασμός των φορολογικών προληπτικών μερικών επιτόπιων ελέγχων μέσω διαδικτυακής εφαρμογής
Creators: name: Χατζηστεργίου, Αγγελική Ευάγγελου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Ηλεκτρονική διακυβέρνηση
Μερικός επιτόπιος φορολογικός έλεγχος
Γραφειοκρατία
Τεχνολογίες Πληροφορικής κι Επικοινωνιών
Ευέλικτη διακυβέρνηση
Επιχειρησιακές διεργασίες
Διοίκηση επιχειρησιακών διεργασιών,
Αναδημιουργία επιχειρησιακών διεργασιών
Τεχνολογία blockchain.
Ε-government
Οn-the-spot tax audit
Bureaucracy
Paperless audit
Information and Communication Technologies
Agile government
Business process
Business process management
Business process reengineering
Blockchain technology

description: Στα πλαίσια της παρούσας εργασίας, παρουσιάζεται η σύγχρονη αλληλουχία των διοικητικών διαδικασιών που προηγούνται, υποστηρίζουν κι έπονται της διενέργειας ενός προληπτικού φορολογικού μερικού επιτόπιου ελέγχου, καθώς επίσης και τα μειονεκτήματα αυτής. Προτείνεται μία νέα μέθοδος διενέργειας του ελέγχου, η οποία επηρεάζει και τις τρεις φάσεις του. Η διενέργεια του υποστηρίζεται από φορητή υπολογιστική συσκευή - tablet & πένα, power bank, λογισμικό ηλεκτρονικής χειρόγραφης υπογραφής, και σύνδεση στο Διαδίκτυο μέσω δικτύου κινητής τηλεφωνίας ενώ ο χρήστης κατά την διάρκεια του ελέγχου χρησιμοποιεί μία διαδικτυακή εφαρμογή, που συνδέεται στο δίκτυο της εκάστοτε Αρχής . Απώτερος σκοπός της πρότασης είναι η αυτοματοποίηση των διαδικασιών που συνθέτουν την διενέργεια του προληπτικού ελέγχου, βελτιστοποιώντας την προς όφελος του δημοσίου τομέα αλλά και των πολιτών. Επιπροσθέτως, μέσω της εργασίας ο αναγνώστης εισάγεται στην έννοια και τις αρχές της τεχνολογίας blockchain και του τρόπου με τον οποίο αυτή μπορεί να εφαρμοστεί σε έναν δημόσιο φορέα. Τέλος, διευκρινίζεται πως, η εργασία δεν αποσκοπεί στην παρουσίαση των ελεγκτικών διαδικασιών, ουδεμία αναφορά γίνεται στον τρόπο με τον οποίο αυτές διενεργούνται ενώ επίσης δεν συμπεριλαμβάνεται κάποιο εσωτερικό επίσημο έγγραφο
description: In this study, the current sequence of the administrative procedures is presented, that precede, support and follow the implementation of a on-the-spot tax audit, as well as its disadvantages. Α new method of audit is proposed, which affects the three phases mentioned above. It is supported by a portable computing device - tablet & pen, power bank, electronic handwriting signature software, and Internet connection over a mobile phone network while the user uses a web-based application linked to the network of the Authority. The ultimate aim of the proposal is to automate the processes that make up the on-the-spot tax audit by optimizing them for the benefit of both the public sector and the citizens. Also through the study the reader is introduced to the concept and principles of blockchain technology and how it can be applied to a public entity. Finally, it is clarified that this study is not intended to present audit procedures, there is no reference to how they are performed, and no internal document is included
Resolving the Dusty Circumstellar Structure of the Enigmatic Symbiotic Star CH Cygni with the MMT Adaptive Optics System
Creators: name: Biller, Beth A.
name: Close, Laird M.
name: Li, Aigen
name: Marengo, Massimo
name: Bieging, John H.
name: Hinz, Phil M.
name: Hoffmann, William F.
name: Brusa, Guido
name: Miller, Doug
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We imaged the symbiotic star CH Cyg and two PSF calibration stars using the unique 6.5m MMT deformable secondary adaptive optics system. Our high-resolution (FWHM=0.3"), very high Strehl (98%+-2%) mid-infrared (9.8 and 11.7 um) images of CH Cyg allow us to probe finer length scales than ever before for this object. CH Cyg is significantly extended compared to our unresolved PSF calibration stars (Mu UMa and Alpha Her) at 9.8 and 11.7 um. We estimated the size of the extension by convolving a number of simple Gaussian models with the Mu UMa PSF and determining which model provided the best fit to the data. Adopting the Hipparcos distance for this object of 270 pc, we found a nearly Gaussian extension with a FWHM at 9.8 um of ~40.5+-2.7 AU (0.15+-0.01") and a FWHM at 11.7 um of 45.9+-2.7 AU (0.17+-0.01"). After subtracting out the Gaussian component of the emission (convolved with our PSF), we found a faint \~0.7" asymmetric extension which peaks in flux ~0.5" north of the stars. This extension is roughly coincident with the northern knotlike feature seen in HST WFPC2 images obtained in 1999.
description: 18 pages, 7 figures, accepted by the Astrophysical Journal
Four-Spin Terms and the Origin of the Chiral Spin Liquid in Mott Insulators on the Triangular Lattice
Creators: name: Cookmeyer, Tessa
name: Motruk, Johannes
name: Moore, Joel E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: At strong repulsion, the triangular-lattice Hubbard model is described by $s=1/2$ spins with nearest-neighbor antiferromagnetic Heisenberg interactions and exhibits conventional 120$^\circ$ order. Using the infinite density matrix renormalization group and exact diagonalization, we study the effect of the additional four-spin interactions naturally generated from the underlying Mott-insulator physics of electrons as the repulsion decreases. Although these interactions have historically been connected with a gapless ground state with emergent spinon Fermi surface, we find that at physically relevant parameters, they stabilize a chiral spin-liquid (CSL) of Kalmeyer-Laughlin (KL) type, clarifying observations in recent studies of the Hubbard model. We then present a self-consistent solution based on mean-field rewriting of the interaction to obtain a Hamiltonian with similarities to the parent Hamiltonian of the KL state, providing a physical understanding for the origin of the CSL.
description: 7+15 pages, 4+17 figures
Disorder-induced currents as signatures of chiral superconductivity
Creators: name: Karmakar, Madhuparna
name: Ganesh, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Chiral superconductors are expected to carry a spontaneous, chiral and perpetual current along the sample edge. However, despite the availability of several candidate materials, such a current has not been observed in experiments. In this article, we suggest an alternative probe in the form of impurity-induced chiral currents. We first demonstrate that a single non-magnetic impurity induces an encircling chiral current. Its direction depends on the chirality of the order parameter and the sign of the impurity potential. Building on this observation, we consider the case of multiple impurities, e.g., realized as adatoms deposited on the surface of a candidate chiral superconductor. We contrast the response that is obtained in two cases: (a) when the impurities are all identical in sign and (b) when the impurities have mixed positive and negative signs. The former leads to coherent currents within the sample, arising from the fusion of individual current loops. The latter produces loops of random chirality that lead to incoherent local currents. These two scenarios can be distinguished by measuring the induced magnetic field using recent probes such as diamond NV centres. We argue that impurity-induced currents may be easier to observe than edge currents, as they can be tuned by varying impurity strength and concentration. We demonstrate these results using a toy model for $p_x \pm i p_y$ superconductivity on a square lattice. We develop an improved scheme for Bogoliubov deGennes (BdG) simulations where both the order parameter as well as the magnetic field are determined self-consistently.
description: 8 pages, 6 figures
Marks on paper : exploring literacy through theatre - impact of performing on literacy and upgrading students
Creators: name: Andruske, Cynthia Lee
Publisher: name: University of British Columbia
Year: 2008

description: This work explored the impact that performing in the literacy play "Marks on Paper" had on adult literacy and upgrading students in British Columbia, Canada, from 1989-1992. The findings suggest that through performance learner/actors experienced an increased positive self-image and an increased awareness about illiteracy. Often this translated into a sense of empowerment resulting in transformations in perspectives and actions for the students. The research design was a historical case study of "Marks on Paper." The play experienced three phases in its history: Chinook Touring Theatre, Literacy Players, and their four spin-off productions. Three data sources were used: 1) twenty-two audio-taped, semi-structured, open-ended interviews of the learner/actors; 2) documents collected from the groups included play programs, newspaper clippings, journals, learner event reports, personal scrapbooks, photographs, and props; 3) observations made as a participant-observer from both videotapes and live events. Three major categories emerged from the research. First, in terms of PSYCHO-SOCIAL CHARACTERISTICS, performing in the play enhanced the players self-image and created a sense of belonging. SOCIO-POLITICAL PERSPECTIVES were manifested in raised awareness, empowerment, and transformation/action. Finally, the play had a SOCIO-EDUCATIONAL impact in terms of learning and teaching. The findings of this research have implications for self-understanding, understanding others, raising awareness, problem-solving, teaching, and learning. The play provided the learner/actors with the opportunity to explore their performing capabilities, inter-personal skills, and perceptions of illiteracy in the classroom, informal settings, rehearsal, and public performance. This helped increase self-confidence in the learners. The play was used as an instrument for learners to work in groups and to network with peers. Theatre like "Marks on Paper" can provide a voice for students to create dialogue, solve problems, and create awareness about illiteracy. Also, theatre encouraged students to work on their own behalf with professionals and the community to seek solutions for illiteracy.
Numerical analysis of a model of two phase compressible fluid flow
Creators: name: Feireisl, Eduard
name: Petcu, Madalina
name: She, Bangwei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We consider a model of a binary mixture of two immiscible compressible fluids. We propose a numerical scheme and discuss its basic properties: Stability, consistency, convergence. The convergence is established via the method of generalized weak solutions combined with the weak-strong uniqueness principle.
Mobility Functional Areas and COVID-19 Spread
Creators: name: Iacus, Stefano Maria
name: Santamaria, Carlos
name: Sermi, Francesco
name: Spyratos, Spyridon
name: Tarchi, Dario
name: Vespe, Michele
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: Machine Learning (cs.LG)
subject: Econometrics (econ.EM)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: This work introduces a new concept of functional areas called Mobility Functional Areas (MFAs), i.e., the geographic zones highly interconnected according to the analysis of mobile positioning data. The MFAs do not coincide necessarily with administrative borders as they are built observing natural human mobility and, therefore, they can be used to inform, in a bottom-up approach, local transportation, spatial planning, health and economic policies. After presenting the methodology behind the MFAs, this study focuses on the link between the COVID-19 pandemic and the MFAs in Austria. It emerges that the MFAs registered an average number of infections statistically larger than the areas in the rest of the country, suggesting the usefulness of the MFAs in the context of targeted re-escalation policy responses to this health crisis. The MFAs dataset is openly available to other scholars for further analyses.
description: accept version for journal Transportation
GASTOF: Ultra-fast ToF forward detector for exclusive processes at the LHC
Creators: name: Bonnet, L.
name: Pierzchala, T.
name: Piotrzkowski, K.
name: Rodeghiero, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: GASTOF (Gas Time-of-Flight) detector is a Cherenkov detector proposed for very precise (10--20 ps) arrival time measurements of forward protons at some 420 m from the central detectors of CMS and ATLAS. Such an excellent time resolution will allow by z-by-timing technique for precise measurement of the z-coordinate of the event vertex in exclusive production at the LHC, when two colliding protons are scattered at very small angles. In the paper we present first GASTOF prototype, simulations of its performance as well as first tests using a cosmic muon telescope.
description: 6 pages, 3 figures, presented at the conference ''Physics at LHC'', Krakow, June 2006
Development of an Early Prediction System for Flood Disasters Based on the Internet of Things (IoT) with the Application of Deep Learning
Creators: name: Khalif, Mhd. Idham
name: Listyo Edi Prabowo
name: Nazarullah, Fachran
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Deep learning
subject: Flood prediction
subject: Internet of things
subject: Raspberry Pi

description: In this study, we propose the development of an integrated approach to flood prediction systems using the implementation of an artificial neural network approach on the backend system to improve the accuracy of the results. In this study, we propose the development of an integrated approach to flood prediction systems using an artificial neural network approach on the backend system. The Internet of Things (IoT) device used consists of a raspberry pi connected to an ultrasonic sensor and a web camera module. The ultrasonic sensor is used to measure the distance to the water surface, while the web camera module is used to take photos of the current river conditions. Our experiments show that our system successfully monitors river water level conditions, displays data on a web platform, and analyzes data for flood prediction using machine learning with an MSE error rate of 0.038%.
Additional file 1: of TRIM47 is up-regulated in colorectal cancer, promoting ubiquitination and degradation of SMAD4
Creators: name: Liang, Qian
name: Tang, Chaotao
name: Tang, Mingyu
name: Zhang, Qingwei
name: Gao, Yunjie
name: Ge, Zhizheng
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Figure S1. SMAD4 is loss in colorectal cancer and correlated with poor prognosis. (A) Representative images of SMAD4 protein expression in colorectal cancer tissues and paired adjacent tissues using IHC in Renji dataset (Cohort 2, n = 180). (B) Statistical analysis of SMAD4 protein expression in colorectal cancer tissues and paired adjacent tissues using IHC staining in Renji dataset (Cohort 2, n = 180, nonparametric Mann–Whitney test, P < 0.05). (C) Univariate regression analysis in Cohort 2 (All the bars correspond to 95% confidence intervals). (D) Multivariable regression analysis in Cohort 2 (All the bars correspond to 95% confidence intervals). (PDF 356 kb)