cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Promoting padawans: a survey examining the state of mentorship in neurosurgical training in the United Kingdom
Creators: name: Mancuso-Marcello, Marco
name: Salloum, Nadia Liber
name: Copley, Phillip Correia
name: Emelifeonwu, John Amaechi
name: Kaliaperumal, Chandrasekaran
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Mentorship has long since been acknowledged as an integral part of Neurosurgical training. The authors sought to evaluate the state of mentorship in Neurosurgical training in the United Kingdom (UK). A 28-point questionnaire was sent to all neurosurgical trainees in the UK and Ireland via the British Neurosurgical Trainee’s Association (BNTA), comprising 180 trainees. There were 75 responses (180 trainees on the mailing list, 42% response rate). Despite all respondents reporting it to be at least somewhat important to have a mentor, 16% felt they had no mentors. The mean number of mentors was 2.91 with 72% of respondents having more than 1 mentor. In terms of the content of mentorship relationships, 63% were comfortable discussing career related topics with their mentor to a high or very high degree but only 29% felt comfortable discussing their general wellbeing. With regards to allocated educational supervisors, 43% thought this person to be a ‘low’ or ‘very low’ source of mentorship. The three most important traits of the ideal mentor as reported by respondents were: someone chosen by them (48%), working in the same hospital (44%) and having received formal mentorship training (36%). The current perception of mentorship in Neurosurgery from the surveyed trainees is mixed. A healthy majority of trainees benefit from mentorship of some kind, whilst a significant minority feel underserved. The surveyed trainees feel mentorship is slanted more towards clinical and professional aspects of development than it is towards personal ones. Suggestions for future insight would be an evaluation of senior registrar and consultant sentiments towards mentorship, whilst exploration into more flexible models for establishing mentoring relationships may help to address the heavy importance of trainee choice which is voiced by this survey’s results.
Arbeitsmarktintegration von Flüchtlingen und Vorläufig Aufgenommenen in der Schweizer Pflegebranche : eine Analyse der Chancen und Herausforderungen von Arbeitsintegrationsprogrammen für Flüchtlinge und Vorläufig Aufgenommene aus Sicht der Programmanbietenden
Creators: name: Hamzian, Schamim
Publisher: name: ZHAW Zürcher Hochschule für Angewandte Wissenschaften
Year: 2018
Subjects: 331: Arbeitsökonomie
362: Gesundheits- und Sozialdienste

description: Die niedrige Erwerbsquote von Flüchtlingen (FL) und Vorläufig Aufgenommenen (VA) sind im Vergleich zur restlichen Bevölkerung konstant tief. Somit geht auch hervor, dass mindestens jene, die nicht erwerbstätig sind von der Sozialhilfe abhängig sind. Da Erwerbsarbeit ein zentraler Bestandteil der Integration ist, wird jene der FL und VA gehemmt. Der politische Diskurs bezüglich dieser Thematik ist hitzig und die sozioökonomischen Auswirkungen für alle Akteure der Gesellschaft nicht optimal. Gleichzeitig sieht sich das Gesundheitswesen, insbesondere was die Pflegebranche betrifft mit Transformationen, welche verschiedene Aspekte tangieren, konfrontiert. So ist der demographische Wandel einhergehend mit sich wandelnden Bedürfnissen der Klientel eines dieser Aspekte. Ein Lösungsansatz in dieser Hinsicht könnte die Arbeitsmarktintegration von FL und VA in die Pflegebranche darstellen.
Data: Scale up urban agriculture to leverage transformative food systems change, advance social-ecological resilience, and improve sustainability
Creators: name: Qiu, Jiangxiao
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 410204
subject: Ecosystem services (incl. pollination)
classificationCode: 300210
subject: Sustainable agricultural development
classificationCode: 410203
subject: Ecosystem function
classificationCode: 410206
subject: Landscape ecology
classificationCode: 440714
subject: Urban policy
classificationCode: 330413
subject: Urban planning and health
classificationCode: 440408
subject: Urban community development

description: Raw data and code for Qiu et al., Scale up urban agriculture to leverage transformative food systems change, advance social-ecological resilience, and improve sustainability
Astrophysical Black Hole horizons in a cosmological context: Nature and possible consequences on Hawking Radiation
Creators: name: Ellis, George F R
name: Goswami, Rituparno
name: Hamid, Aymen I. M.
name: Maharaj, Sunil D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper considers the nature of apparent horizons for astrophysical black hole situated in a realistic cosmological context. Using semi-tetrad covariant methods we study the local evolutions of the boundaries of the trapped region in the spacetime. For a collapsing massive star immersed in a cosmology with Cosmic Background Radiation (CBR), we show that the initial 2 dimensional marginally trapped surface bifurcates into inner and outer horizons. The inner horizon is timelike while the continuous CBR influx into the black hole makes the outer horizon spacelike. We discuss the possible consequences of these features for Hawking radiation in realistic astrophysical contexts.
description: 14 pages, 4 figures, Minor corrections in the text, Matches the accepted version in Physical Review D
MPEC 2023-R68 : 2023 RW1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 RW1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Additional file 4 of Design of a multi-epitope vaccine against the pathogenic fungi Candida tropicalis using an in silico approach
Creators: name: Akhtar, Nahid
name: Singh, Arshwinder
name: Upadhyay, Atul Kumar
name: Mannan, M. Amin-ul
Publisher: name: figshare
Year: 2022
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 4: Table S4. Program: BLASTP.
A Collaborative Model for a Resolution to Prevent Accidental Fires in High-Rise Buildings in Thailand
Creators: name: Apiwat Patcharakornpinyo
Publisher: name: Faculty of Religion and Philosophy Mahamakut Buddhist University
Year: 2022
Subjects: Building fire prevention law
Building fire prevention system
Collaboration for problem resolution
Accidental fire in high-rise buildings

description: Journal of Philosophical Vision, 27, 2, 11-27
A mathematical theory of resources
Creators: name: Coecke, Bob
name: Fritz, Tobias
name: Spekkens, Robert W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: Systems and Control (eess.SY)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In many different fields of science, it is useful to characterize physical states and processes as resources. Chemistry, thermodynamics, Shannon's theory of communication channels, and the theory of quantum entanglement are prominent examples. Questions addressed by a theory of resources include: Which resources can be converted into which other ones? What is the rate at which arbitrarily many copies of one resource can be converted into arbitrarily many copies of another? Can a catalyst help in making an impossible transformation possible? How does one quantify the resource? Here, we propose a general mathematical definition of what constitutes a resource theory. We prove some general theorems about how resource theories can be constructed from theories of processes wherein there is a special class of processes that are implementable at no cost and which define the means by which the costly states and processes can be interconverted one to another. We outline how various existing resource theories fit into our framework. Our abstract characterization of resource theories is a first step in a larger project of identifying universal features and principles of resource theories. In this vein, we identify a few general results concerning resource convertibility.
description: 32 pages, many figures. v2 and v3: minor revisions
Additional file 5 of Design of a multi-epitope vaccine against the pathogenic fungi Candida tropicalis using an in silico approach
Creators: name: Akhtar, Nahid
name: Singh, Arshwinder
name: Upadhyay, Atul Kumar
name: Mannan, M. Amin-ul
Publisher: name: figshare
Year: 2022
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 5: Table S5. Relative surface accessibility of the amino acid residues in the epitope of the designed vaccine candidate.
Dark Matter in the minimal Inverse Seesaw mechanism
Creators: name: Abada, Asmaa
name: Arcadi, Giorgio
name: Lucente, Michele
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider the possibility of simultaneously addressing the dark matter problem and neutrino mass generation in the minimal inverse seesaw realisation. The Standard Model is extended by two right-handed neutrinos and three sterile fermionic states, leading to three light active neutrino mass eigenstates, two pairs of (heavy) pseudo-Dirac mass eigenstates and one (mostly) sterile state with mass around the keV, possibly providing a dark matter candidate, and accounting for the recently observed and still unidentified monochromatic 3.5 keV line in galaxy cluster spectra. The conventional production mechanism through oscillation from active neutrinos can account only for $\sim 43\%$ of the observed relic density. This can be slightly increased to $\sim 48\%$ when including effects of entropy injection from the decay of light (with mass below 20 GeV) pseudo-Dirac neutrinos. The correct relic density can be achieved through freeze-in from the decay of heavy (above the Higgs mass) pseudo-Dirac neutrinos. This production is only effective for a limited range of masses, such that the decay occurs not too far from the electroweak phase transition. We thus propose a simple extension of the inverse seesaw framework, with an extra scalar singlet coupling to both the Higgs and the sterile neutrinos, which allows to achieve the correct dark matter abundance in a broader region of the parameter space, in particular in the low mass region for the pseudo-Dirac neutrinos.
description: 36 pages, 17 figures. V2 matches the version accepted for publication on JCAP
Mean properties and Free Energy of a few hard spheres confined in a spherical cavity
Creators: name: Urrutia, Ignacio
name: Pastorino, Claudio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We use analytical calculations and event-driven molecular dynamics simulations to study a small number of hard sphere particles in a spherical cavity. The cavity is taken also as the thermal bath so that the system thermalizes by collisions with the wall. In that way, these systems of two, three and four particles, are considered in the canonical ensemble. We characterize various mean and thermal properties for a wide range of number densities. We study the density profiles, the components of the local pressure tensor, the interface tension, and the adsorption at the wall. This spans from the ideal gas limit at low densities to the high-packing limit in which there are significant regions of the cavity for which the particles have no access, due the conjunction of excluded volume and confinement. The contact density and the pressure on the wall are obtained by simulations and compared to exact analytical results. We also obtain the excess free energy for N=4, by using a simulated-assisted approach in which we combine simulation results with the knowledge of the exact partition function for two and three particles in a spherical cavity.
description: 11 pages, 9 figures and two tables
Means and non-real Intersection Points of Taylor Polynomials
Creators: name: Horwitz, Alan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: Suppose that f has continuous derivatives thru order r+1 for x>0, and let P_{c} denote the Taylor polynomial to f of order r at x=c,c>0. In a previous paper of the author, it was shown that if r is an odd whole number and the (r+1)st derivative of f is nonzero on [a,b], then there is a unique x_{0},a
description: 29 pages, no figures. Some small modifications, simplifications and corrections
Bose-Hubbard model with random impurities: Multiband and nonlinear hopping effects
Creators: name: Stasińska, Julia
name: Łącki, Mateusz
name: Dutta, Omjyoti
name: Zakrzewski, Jakub
name: Lewenstein, Maciej
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We investigate the phase diagrams of theoretical models describing bosonic atoms in a lattice in the presence of randomly localized impurities. By including multiband and nonlinear hopping effects we enrich the standard model containing only the chemical-potential disorder with the site-dependent hopping term. We compare the extension of the MI and the BG phase in both models using a combination of the local mean-field method and a Hartree-Fock-like procedure, as well as, the Gutzwiller-ansatz approach. We show analytical argument for the presence of triple points in the phase diagram of the model with chemical-potential disorder. These triple points however, cease to exists after the addition of the hopping disorder.
description: version accepted in Phys. Rev. A
$α$-cluster structure of $^{18}$O
Creators: name: Avila, M. L.
name: Rogachev, G. V.
name: Goldberg, V. Z.
name: Johnson, E. D.
name: Kemper, K. W.
name: Tchuvil'sky, Yu. M.
name: Volya, A. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Background: Clustering phenomena in $N \neq Z$ nuclei provide an opportunity to understand the interplay between cluster and nucleon degrees of freedom. Purpose:To study resonances in the $^{18}$O spectrum, populated in $^{14}$C+$α$ elastic scattering. Method: The Thick Target Inverse Kinematics (TTIK) technique was used to measure the excitation function for the $^{14}$C+$α$ elastic scattering. A 42 MeV $^{14}$C beam was used to populate states of excitation energy up to 14.9 MeV in $^{18}$O. The analysis was performed using a multi-level, multi-channel R-Matrix approach. Results: Detailed spectroscopic information, including spin-parities, partial $α$- and neutron- decay widths and dimensionless reduced widths, was obtained for excited states in $^{18}$O between 8 and 14.9 MeV in excitation energy. Cluster-Nucleon Configuration Interaction Model calculations of the same quantities are performed and compared to the experimental results. Conclusions: Strong fragmentation of large $α$-cluster strengths is observed in the spectrum of $^{18}$O making the $α$-cluster structure of $^{18}$O quite different from the pattern of known quasi-rotational bands of alternating parity that are characteristic of $N=Z$, even-even nuclei like $^{16}$O and $^{20}$Ne.
title: Αξιολόγηση υπηρεσιών τηλεργασίας στην Ελληνική αγορά
title: Assessment of teleworking services in the Greek market
Creators: name: Τζινακη Αικατερινη-Μαρινα
Publisher: name: Technical University of Crete
Year: 2022

description: Με το ξέσπασμα της πανδημίας του Covid-19 υιοθετήθηκε από χιλιάδες ιδιωτικές επιχειρήσεις και δημόσιους οργανισμούς η οργάνωση της εργασίας μέσω τηλεργασίας ως μέτρο περιορισμού της εξάπλωσης της ασθένειας και προστασίας της δημόσιας υγείας. Σκοπός της παρούσας εργασίας είναι η αξιολόγηση των υπηρεσιών τηλεργασίας στην Ελληνική αγορά. Η εργασία βασίζεται σε έρευνα που πραγματοποιήθηκε με το διαμοιρασμό ερωτηματολογίου μέσω διαδικτύου σε εργαζόμενους οι οποίοι απασχολούνται με τηλεργασία. Στόχος της εργασίας είναι η εξαγωγή συμπερασμάτων ως προς τα δημογραφικά στοιχεία των εργαζομένων, τις προκλήσεις της τηλεργασίας, το χρησιμοποιούμενο λογισμικό και υλικοτεχνικό εξοπλισμό και την ικανοποίηση των εργαζομένων από την τηλεργασία. Η εκτίμηση της παρούσας κατάστασης συνεισφέρει στην ανάδειξη πηγών δυσαρέσκειας του εργαζόμενου με τηλεργασία με σκοπό τη βελτίωση των συνθηκών εργασίας και της ποιότητας ζωής του εργαζόμενου.
description: With the outbreak of the Covid-19 pandemic thousands of private companies and public organizations adopted teleworking as a measure to limit the spread of the disease and protect public health. The purpose of this study is the assessment of teleworking services in the Greek market. The study is based on a survey conducted by distributing a questionnaire online to employees whose work arrangement involves teleworking. The aim of the study is to determine the demographics of teleworkers, the challenges of teleworking, the software and hardware used and the satisfaction level of teleworking employees. The assessment of teleworking services contributes to the identification of sources of job dissatisfaction in order to improve working conditions and quality of life.
Motivation Factor Influencing Consumers' Decision to Purchase Agricultural Products in Aranyaprathet District Sa Kaeo Province
Creators: name: Sirapob Pongsamorn
Publisher: name: Faculty of Religion and Philosophy Mahamakut Buddhist University
Year: 2022
Subjects: The Loyalty
Henan Jianye
Football Club

description: Journal of Philosophical Vision, 27, 2, 140-150
Copper Thiophosphate (Cu3PS4) as an Electrode Material for Lithium Solid‐State Batteries with Lithium Thiophosphate (β–Li3PS4) Electrolyte
Creators: name: Zhang, Zhenggang
name: Mazzio, Katherine
name: Riegger, Luise M.
name: Brehm, Wolfgang
name: Janek, Jürgen
name: Sann, Joachim
name: Adelhelm, Philipp
Publisher: name: Humboldt-Universität zu Berlin
Year: 2023
Subjects: subject: conversion reaction
subject: Cu3PS4
subject: solid-state batteries
subject: ternary compounds
subject: transition-metal thiophosphate
subject: 540 Chemie und zugeordnete Wissenschaften
subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten

description: Lithium thiophosphate (β‐Li3PS4) is a promising solid electrolyte (SE) for solid‐state batteries (SSBs). A major limitation is its very narrow electrochemical stability window which is caused by redox reactions involving sulfur and phosphorous. As these redox processes can be reversible, thiophosphates can be also studied as electrode materials. Herein, the use of Cu3PS4 as an active electrode material for Li SSBs with β‐Li3PS4 as the SE is explored. Both compounds exhibit similarities in crystal structure and composition which may benefit their compatibility. An In/InLi alloy is used as the counter electrode. The influence of electrode composition and temperature (room temperature and 60 °C) on the cell behavior is investigated. For an electrode composition of Cu3PS4: β–Li3PS4: C65 = 40: 50: 10 wt%, the initial discharge capacity at 60 °C is 776 mAh g−1 which fades over 60 cycles to 508 mAh g−1 when cycled between 0.8 and 2.8 V (vs. Li+/Li) at 50 mA g−1 (254.8 μA cm−2). Analysis by X‐ray diffraction and X‐ray photoelectron spectroscopy shows that Cu3PS4 irreversibly decomposes during lithiation. During cycling, the redox activity is found to be due to Cu2S and S8 redox.
Hubble Space Telescope High Resolution Imaging of Kepler Small and Cool Exoplanet Host Stars
Creators: name: Gilliland, Ronald L.
name: Cartier, Kimberly M. S.
name: Adams, Elisabeth R.
name: Ciardi, David R.
name: Kalas, Paul
name: Wright, Jason T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: High resolution imaging is an important tool for follow-up study of exoplanet candidates found via transit detection with the Kepler Mission. We discuss here HST imaging with the WFC3 of 23 stars that host particularly interesting Kepler planet candidates based on their small size and cool equilibrium temperature estimates. Results include detections, exclusion of background stars that could be a source of false positives for the transits, and detection of physically-associated companions in a number of cases providing dilution measures necessary for planet parameter refinement. For six KOIs, we find that there is ambiguity in which star hosts the transiting planet(s), with potentially strong implications for planetary characteristics. Our sample is evenly distributed in G, K, and M spectral types. Albeit with a small sample size, we find that physically-associated binaries are more common than expected at each spectral type, reaching a factor of 10 frequency excess at M. We document the program detection sensitivities, detections, and deliverables to the Kepler follow-up program archive.
description: Accepted for the Astronomical Journal; 13 pages with 9 figures
A Model of Lifestyle Based on Buddhist Philosophy of Members of Moral Community in Nonthaburi Province
Creators: name: Phra Khom Khuntivaro Chandrabhapa
Publisher: name: Faculty of Religion and Philosophy Mahamakut Buddhist University
Year: 2022
Subjects: Lifestyle
Buddhist Philosophy
The Moral Community of Nonthaburi Province

description: Journal of Philosophical Vision, 27, 2, 169-180
Quantum lower bound for inverting a permutation with advice
Creators: name: Nayebi, Aran
name: Aaronson, Scott
name: Belovs, Aleksandrs
name: Trevisan, Luca
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Complexity (cs.CC)
subject: Cryptography and Security (cs.CR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Given a random permutation $f: [N] \to [N]$ as a black box and $y \in [N]$, we want to output $x = f^{-1}(y)$. Supplementary to our input, we are given classical advice in the form of a pre-computed data structure; this advice can depend on the permutation but \emph{not} on the input $y$. Classically, there is a data structure of size $\tilde{O}(S)$ and an algorithm that with the help of the data structure, given $f(x)$, can invert $f$ in time $\tilde{O}(T)$, for every choice of parameters $S$, $T$, such that $S\cdot T \ge N$. We prove a quantum lower bound of $T^2\cdot S \ge \tildeΩ(εN)$ for quantum algorithms that invert a random permutation $f$ on an $ε$ fraction of inputs, where $T$ is the number of queries to $f$ and $S$ is the amount of advice. This answers an open question of De et al. We also give a $Ω(\sqrt{N/m})$ quantum lower bound for the simpler but related Yao's box problem, which is the problem of recovering a bit $x_j$, given the ability to query an $N$-bit string $x$ at any index except the $j$-th, and also given $m$ bits of advice that depend on $x$ but not on $j$.
description: To appear in Quantum Information & Computation. Revised version based on referee comments
title: Self-intersecting marginally outer-trapped surfaces within spherically symmetric black holes
Creators: name: Chan, Kam To Billy
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: Black hole mergers have been studied for over 50 years but are still not fully understood, despite growing relevance with the constant stream of gravitational wave detections. Due to the non-linearity of Einstein’s theory of gravity, it is difficult to draw an analytical solution. Numerical simulations of the merger process have progressed and are now able to discern the dynamics of two black hole horizons eventually becoming one, with the involvement of exotic self-intersecting surfaces. Further study has shown that these self-intersecting surfaces appear not only in the dynamical case of black hole mergers, but also for static black holes. This manuscript provides a background to the advancement of our understanding of black hole mergers, discovery of these self-intersecting surfaces, and our advancement in understanding these self-intersecting surfaces through their analysis inside different black holes.
Life Quality Development of Thai People in the 21st Century Based on Therav?da Buddhist Philosophy
Creators: name: Wanitchaya Chaiya
Publisher: name: Faculty of Religion and Philosophy Mahamakut Buddhist University
Year: 2022
Subjects: Life quality development
Thai people in the 21st century
Therav?da Buddhist Philosophy

description: Journal of Philosophical Vision, 27, 2, 181-194
On measurement of the isotropy of the speed of light
Creators: name: Wojtsekhowski, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Three experimental concepts investigating possible anisotropy of the speed of light are presented. They are based on i) beam deflection in a 180 degree magnetic arc, ii) narrow resonance production in an electron-positron collider, and iii) the ratio of magnetic moments of an electron and a positron moving in opposite directions.
description: a discussion of the high precision tests of special relativity, double ratio with e+ & e- beams
Initial state angular asymmetries in high energy p+A collisions: spontaneous breaking of rotational symmetry by a color electric field and C-odd fluctuations
Creators: name: Dumitru, Adrian
name: Giannini, Andre V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a simple model for generating initial-state azimuthal asymmetries in pA collisions from dipole scattering on an anisotropic dense target. Parity even angular harmonics arise from the C-even real part of the dipole S-matrix which spontaneously breaks rotational symmetry in two dimensions due to a condensate for the color electric field. This leads to an angular correlation with the direction of $\vec E$. Parity odd harmonics are generated by the C-odd imaginary part (odderon) due to coupling to coherent target fluctuations which again break rotational invariance. We perform a first qualitative extraction of the amplitude and cutoff of C-odd fluctuations in the dense target.
description: 14 pages, 5 figures; revised version: added a few references and a plot of v4{4} from factorized 4-particle distribution
Corso di formazione su diritto d'autore, copyright e licenze aperte per il personale bibliotecario
Creators: name: Aliprandi, Simone
Publisher: name: Zenodo
Year: 2023
Subjects: diritto d'autore
copyright
open access
public domain
fair use
creative commons
biblioteche
libraries

description: Le slides utilizzate per il corso online tenutosi il 24 e 28 febbraio 2023 e rivolto al personale del sistema bibliotecario dell'Università degli Studi di Perugia.
Effective field theory for the bulk-edge correspondence in a two-dimensional Z_2 topological insulator with Rashba interactions
Creators: name: Gomes, Pedro R. S.
name: Huang, Po-Hao
name: Chamon, Claudio
name: Mudry, Christopher
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We determine the effective field theory in (2+1)-dimensional space and time that captures the long wave length and low-energy limit of fermions hopping on a honeycomb lattice at half-filling when both a dominant intrinsic and subdominant Rashba spin-orbit couplings are present. This effective field theory for a Z_2 topological insulator (the Kane-Mele model at vanishing uniform and staggered chemical potentials) is a perturbation around a double Chern-Simons theory, with the U(1) gauge invariance associated to spin conservation explicitly broken due to the Rashba spin orbit coupling. Nonetheless, we find that the effective field theory has a BRST symmetry that allows us to construct the bulk-edge correspondence.
description: 16 pages, 8 figures; minor corrections; added reference; published version
An Analytical Study Communication for Corporate Image Buddhist Organization affecting to Crisis Faith-Perberted, Loyalty, and Relationships of the Lanna Buddhist
Creators: name: Phrakruwinaitorn Satthaphat Akkadhammo (Nanan)
Publisher: name: Faculty of Religion and Philosophy Mahamakut Buddhist University
Year: 2022
Subjects: Lanna Buddhist
Relationships
Loyalty
Crisis Faith

description: Journal of Philosophical Vision, 27, 2, 195-222
Results on the disconnected contributions for hadron structure
Creators: name: Alexandrou, Constantia
name: Constantinou, Martha
name: Drach, Vincent
name: Hadjiyiannakou, Kyriakos
name: Jansen, Karl
name: Koutsou, Giannis
name: Vaquero, Alejandro
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present results on the disconnected contributions to three point functions entering in studies of hadron structure. We use $N_F = 2+1+1$ twisted mass fermions and give a detailed description on the results of the nucleon σ-terms, isoscalar axial charge and first moments of bare parton distributions for a range of pions masses. In addition we give the σ-terms and the computations are performed using QUDA code implemented on GPUs.
description: 7 pages, 15 figures. Proceedings of the Lattice 2014 conference. v2 fixes captions of figures 1 and 2
Three-dimensional MHD simulations of interplanetary rotational discontinuities impacting the Earth's bow shock and magnetosheath
Creators: name: Cable, S
name: Lin, Y
Publisher: name: Auburn University
Year: 1998

description: The first ever fully three-dimensional magnetohydrodynamic (MHD) simulations of the detailed effects of MHD discontinuities on the magnetosheath have been performed. The simulation results predict that the interaction between a rotational discontinuity (RD) and the bo it shock produces an MHD wave pulse that propagates downstream from the bow shock to the magnetopause. The main components of this pulse are two slow shocks sandwiched between two time-dependent intermediate shocks; in perfectly ideal MHD, these shocks would presumably resolve into slow shocks sandwiched between two RDs. Inside the pulse, the plasma density, thermal pressure, dynamic pressure (rho v(2)), and total pressure all increase, while the magnetic field magnitude decreases; The pulse convects with the downstream flow through the magnetosheath at a speed that is markedly slower than that of the original RD. It comes to rest on the magnetopause, where it raises the total pressure by as much as 75% in some locations. The pulse eventually disappears, as it is convected away by the solar wind flow around the magnetopause. The pulse remains in the magnetosheath for a few Alfven times (i.e., solar wind Alfven velocity divided by the Earth's radius, perhaps 1-3 min depending on the actual solar wind parameters) after the initial RD has propagated downstream past the magnetopause. Comparisons are made with previous one-dimensional and two-dimensional studies of this problem. We conclude that the pulses seen in these simulations are possible causes of magnetic impulse events observed in the ionosphere and slow mode structures observed in the inner subsolar magnetosheath.
The Sastainable Ecotourism Management: A Case Study of Ban leam Community,Pethchaburi Province
Creators: name: Thumrongsak  Damrongsiri
Publisher: name: Faculty of Religion and Philosophy Mahamakut Buddhist University
Year: 2022
Subjects: Sastainable Ecotourism
Ban leam Community
Petchaburi Province

description: Journal of Philosophical Vision, 27, 2, 249-256
The electrostatic characterization of an n-element planar array using the singularity expansion method
Creators: name: Mooney, J
name: Riggs, L
name: Baginski, M
Publisher: name: Auburn University
Year: 1996

description: In this paper, the singularity expansion method (SEM) is used to describe the electrostatic charge distribution on an array of thin linear antennas placed in a uniform electric field. The SEM, which has primarily been used to analyze transient scattering problems, decomposes the electromagnetic interaction process into various quantities such as singularities and modes. Using the SEM, the step plane wave induced transient current on the array is expanded in terms of its singularities (poles) in the Laplace transform (complex frequency domain.) The continuity equation is applied to the induced current expression to obtain the transient charge. The electrostatic charge distribution on the array is found by using the final value theorem on the transient charge expression. It is well known that the SEM factorization of a single linear element reveals that a single pole exists in the fundamental resonance region (near omega L/c = pi, where L is the length of the scatterer). For a two-element array, two poles are observed in the fundamental resonance region. This trend continues such that an n-element array has n poles in the fundamental resonance region. Associated with each pole is a unique modal current and corresponding charge distribution. For example, one of the two fundamental resonance region poles of the two-element array produces half-wavelength sinusoidal current distributions whose directions are the same on one scatterer but opposite on the other. The remaining fundamental resonance region pole produces half-wavelength sinusoidal current distributions whose directions are the same on both scatterers. Corresponding to each mode is a coupling coefficient which determines how much a particular mode couples into the response. A generalization of these results for an n-element array will be given. Furthermore, the electric polarizability is derived in terms of the SEM electric charge description. The value of this research lies in the elegance and strength of the SEM to factor a problem into various quantities which depend on different variables of the problem. By using the SEM to analyse the n-element planar array, a much deeper comprehension of the fundamental aspects of the electrostatic interaction process is achieved.
Investigation of the Interaction Between Magnetosheath Reconnection and Magnetopause Reconnection Driven by Oblique Interplanetary Tangential Discontinuity Using Three-Dimensional Global Hybrid Simulation
Creators: name: Guo, Zhifang
name: Yu, Lin
name: Xueyi, Wang
Publisher: name: Auburn University
Year: 2021

description: Magnetosheath reconnection due to the interaction of an interplanetary directional discontinuity with the bow shock and Earth's magnetosphere under an initially northward interplanetary magnetic field (IMF) has been investigated in previous simulations (e.g., Guo et al., 2018, https://doi.org/10.1029/2018ja025679). Under an initially southward IMF, the magnetosheath reconnection could interact with reconnection at the magnetopause. In this study, using three-dimensional (3D) globalscale hybrid simulations, we present cases with incoming tangential discontinuities (TDs) in an initially southward IMF, which possess various magnetic field rotation angles (Delta Phi) and half-width (w), to study the effects of pre-existing magnetopause reconnection on the formation of magnetosheath flux ropes, as well as the subsequent interaction between the magnetopause reconnection and magnetosheath reconnection, with downstreams of both Quasi-perpendicular (Q-perpendicular to) and Quasi-parallel (Q-II) shock examined. The initial IMF is assumed to be oblique, with a finite B-x and B-z similar to that in Guo et al. (2018), https://dot org/10.1029/2018ja025679 but with a southward B-z < 0. Compared with the cases with an initially northward IMF, magnetopause reconnection weakens the compression processes of the TD and leads to less frequent reconnection in the magnetosheath. The existence and the structure of magnetosheath reconnection are found to strongly depend on the parameters w and Delta Phi of the TD. When interacting with the magnetopause reconnection, the magnetosheath flux ropes can re-reconnect with the geomagnetic dipole field lines, forming new structures of magnetopause flux ropes. The resulting evolution of flux rope configuration is illustrated.
Global hybrid simulation of mode conversion at the dayside magnetopause
Creators: name: Shi, Feng
name: Lin, Yu
name: Wang, Xueyi
Publisher: name: Auburn University
Year: 2013

description: Mode conversion at the magnetopause has been suggested to lead to the generation of kinetic Alfven waves (KAWs) and effective mass transport from the solar wind into the magnetosphere. To investigate the mode conversion process in the dynamic dayside system, a 3D global hybrid simulation associated with a quasiparallel shock under a radial interplanetary magnetic field (IMF) is carried out, in which the foreshock compressional pulses are selfconsistently generated by the interaction between the solar wind and the geomagnetic field. The results show that as the compressional pulses propagate from the magnetosheath to the magnetopause, shortwavelength structures of k(i)approximate to 0.5-1 with enhanced parallel electric field E-vertical bar are excited in the subsolar magnetopause boundary layer (MPBL), where k similar or equal to k(x) is the perpendicular waves number nearly along the GSE x direction, and (i) is the ion Larmor radius. The wavephase relationship between the magnetic field and the density changes from inphase in the magnetosheath to antiphase in the shortwavelength MPBL perturbations. The wave polarization is predominantly compressive in the magnetosheath, whereas strong transverse wave powers appear abruptly around the MPBL. The mode conversion from the compressional pulses to KAWs is identified around the predicted Alfven resonance surface in the MPBL. As these KAWs evolve, KAW modes dominated by azimuthal wave number with k(yi)approximate to 1 are also generated. The KAWs in the MPBL are identified by the sharp increases in E-vertical bar and the electromagnetic field polarization relations of Alfven mode, as well as a spectral analysis. The KAW perturbations propagate poleward into the cusps along the MPBL. Due to the differential flow convection speeds at various latitudes, the KAW packets expand along the northsouth direction, while they may also merge with newlyformed KAWs due to newlyarrived compressional waves.
Forschungsergebnisse schnell und offen publizieren - ein Überblick über Open Access im Fach Chemie
Creators: name: Neumann, Janna
name: Rücknagel, Jessika
Publisher: name: Zenodo
Year: 2022
Subjects: Open Access Talk
Open Access

description: Der Vortrag wurde am 29.09.2022 im Rahmen der Webinar-Reihe Open Access Talk gehalten. Die Reihe ist ein Angebot des BMBF-geförderten Projektes open-access.network. Die möglichst barrierearme Veröffentlichung wissenschaftlicher Erkenntnisse, auch bekannt als Open Access, fördert nicht nur die Sichtbarkeit von Forschungsergebnissen, sondern erleichtert den weltweiten Zugriff. Wegen dieser und weiterer Vorteile setzt sich Open Access im wissenschaftlichen Publikationssystem zunehmend durch und befördert damit gesellschaftlichen und wirtschaftlichen Fortschritt. Auch in der Chemie stehen Wissenschaftler*innen verschiedene Angebote zur Verfügung, die sie für das Open-Access-Publizieren nutzen können. Im Vortrag sind wir auf folgende Fragen eingegangen: Wie kann ich meine Ergebnisse offen publizieren? Welche fachspezifischen Angebote gibt es für die Chemie? Wer unterstützt mich beim Publikationsprozess?
Unruh-DeWitt detector response along static and circular geodesic trajectories for Schwarzschild-AdS black holes
Creators: name: Ng, Keith K.
name: Hodgkinson, Lee
name: Louko, Jorma
name: Mann, Robert B.
name: Martin-Martinez, Eduardo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present novel methods to numerically address the problem of characterizing the response of particle detectors in curved spacetimes. These methods allow for the integration of the Wightman function, at least in principle, in rather general backgrounds. In particular we will use this tool to further understand the nature of conformal massless scalar Hawking radiation from a Schwarzschild black hole in anti-de Sitter space. We do that by studying an Unruh-DeWitt detector at rest above the horizon and in circular geodesic orbit. The method allows us to see that the response rate shows peaks at certain characteristic frequencies, which correspond to the quasinormal modes (QNMs) of the space-time. It is in principle possible to apply these techniques to more complicated and interesting physical scenarios, e.g. geodesic infall or multiple detector entanglement evolution, or the study of the behaviour of quantum correlations in spacetimes with black hole horizons.
description: 13 pages, 12 figures. RevTex 4.1. v2 Updated to published version
Large-order aspects of the delta-expansion in low-dimensional Ising models
Creators: name: Yamada, Hirofumi
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the large order aspects of the delta-expansion under the estimation procession of the critical quantities. As illustrative examples, we revisit one-dimensional Ising model for the analytic study and two-dimensional square Ising model in the high temperature phase for the numerical experiment to large orders. In both models, proposed fundamental base on which the estimation protocol should be constructed is investigated in details and confirmed to be valid. In the square lattice model, we present a new protocol for the estimation of critical exponents and temperature.
description: 13 pages, 17 figures, figures are updated, english is improved, to be published in Phys. Rev. E
Measuring CP violation in Two-Higgs-Doublet models in light of the LHC Higgs data
Creators: name: Grzadkowski, B.
name: Ogreid, O. M.
name: Osland, P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In Two-Higgs-Doublet models, the conditions for CP violation can be expressed in terms of invariants under U(2) rotations among the two SU(2) Higgs doublet fields. In order to design a strategy for measuring the invariants we express them in terms of observables, i.e., masses and couplings of scalar bosons. We find amplitudes directly sensitive to the invariants. Observation of the Standard-Model-like Higgs boson at the LHC severely constrains the models. In particular, in the model with Z_2 symmetry imposed on dimension-4 terms (in order to eliminate tree-level flavour-changing neutral currents), CP violation is strongly suppressed. On the other hand, the most general Two-Higgs-Doublet model (without Z_2 symmetry) would still allow for CP violation to be present in the model, without being in conflict with the LHC data. Consequently, also flavour-changing neutral currents would in general be expected. We briefly sketch a strategy for measuring the remaining CP violation.
description: 26 pages, 7 figures. Version published in JHEP
NOVEL PEG6000 DOPED GRAPHENE NANO POWDER COMPOSITE  WITH IMPROVED STRUCTURAL AND MECHANICAL PROPERTIES
Creators: name: HAJRA BIBI
name: UZMA G
name: ANAS RAMZAN
name: TOOBA JAMSHAID
name: M UMAR
Publisher: name: Zenodo
Year: 2024
Subjects: Novel PEG/GNP Composites, Structural Study, Mechanical Study.

description: Abstract

This study investigates the synthesis, characterization and properties of polyethylene Glycol/graphene nano powder binary composites (PEG/GNPs). These nanocomposites were prepared by co-precipitation method. Structural, morphological, and mechanical properties of these samples were investigated by X-ray powder diffraction (XRD), Fourier transformation infrared (FTIR), Field Emission Scanning Electron Microscopy (FE-SEM) and Universal testing machine (UTM). XRD confirms the phase analysis and crystallinity of the composite. SEM, FTIR and EDS spectroscopy confirms the microstructure of graphene nano powder, identification of functional group and quantitative analysis for elements, respectively and counter confirms the formation of the composites. SEM gives detailed information about the morphology and part distribution. It shows that with the increasing ratio of GNPs (2wt% to 3wt%), the average thickness becomes reduced from 18.43nm to 14.69nm respectively. Mechanical properties were characterized by universal testing machine (UTM). From a mechanical point of view, there was an excellent balance between a remarkable increase in young’s modulus of 3.99N/mm2 for 2wt% and 24 N/mm2 for 3wt% with a slight reduction in the elongation break i.e., 61.11(%) and 33.84(%) respectively.
title: Macromolecular crowding and intrinsically disordered proteins
Creators: name: Trosel, Yanitza
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: The intracellular milieu is crowded and heterogeneous, and this can have profound consequences for biomolecule motions and biochemical kinetics. Macromolecular crowding has been traditionally studied in artificial crowders like Ficoll and dextran or globular proteins such as bovine serum albumin. It is, however, not clear if the effects of artificial crowders on such phenomena are the same as the crowding that is experienced in a heterogeneous biological environment. Bacterial cells, for example, are composed of heterogeneous biomolecules with different sizes, shapes and charges. Using crowders composed of one of three different pretreatments of bacterial cell lysate (unmanipulated, ultracentrifuged, and anion exchanged), we examine the effects of crowding on the diffusivity of a model polymer and an intrinsically disordered protein (IDP). We measure the translational diffusivity, via diffusion NMR, of the test polymer polyethylene glycol (PEG) and the IDP α-synuclein in these bacterial cell lysates. We show that the small (Rg ~ 5 nm) test polymer shows a modest decrease in self-diffusivity with increasing crowder concentration for all lysate treatments. The corresponding self-diffusivity decrease in the artificial Ficoll crowder is much more pronounced. For the IDP, we show that α-synuclein has a significant decrease in the diffusivity in the presence of lysate crowders at low concentrations. Moreover, a comparison of the rheological response of biological and artificial crowders shows that while the artificial crowder Ficoll exhibits a Newtonian response even at high concentrations, the bacterial cell lysate is markedly non-Newtonian; it behaves like a shear-thinning uid with a yield stress. While at any concentration the rheological properties are sensitive to both lysate pretreatment and batch-to-batch variations, the PEG and α-synuclein diffusivity is nearly unaffected by the type of lysate pretreatment.