cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Magnetic field induced phases in anisotropic triangular antiferromagnets: application to $\mathrm{CuCrO_2}$
Creators: name: Lin, Shi-Zeng
name: Barros, Kipton
name: Mun, Eundeok
name: Kim, Jae-Wook
name: Frontzek, Matthias
name: Barilo, S.
name: Shiryaev, S. V.
name: Zapf, Vivien S.
name: Batista, Cristian D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We introduce a minimal spin model for describing the magnetic properties of $\mathrm{CuCrO_2}$. Our Monte Carlo simulations of this model reveal a rich magnetic field induced phase diagram, which explains the measured field dependence of the electric polarization. The sequence of phase transitions between different mutiferroic states arises from a subtle interplay between spatial and spin anisotropy, magnetic frustration and thermal fluctuations. Our calculations are compared to new measurements up to 92 T.
description: 6.5 pages, 9 figures
Spin- and angle-resolved inverse photoemission setup with spin orientation independent from electron incidence angle
Creators: name: Campos, Abraham F.
name: Duret, Philippe
name: Cabaret, Stéphane
name: Duden, Thomas
name: Tejeda, Antonio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A new spin- and angle-resolved inverse photoemission setup with a low-energy electron source is presented. The spin-polarized electron source, with a compact design, can decouple the spin polarization vector from the electron beam propagation vector, allowing to explore any spin orientation at any wavevector in angle-resolved inverse photoemission. The beam polarization can be tuned to any preferred direction with a shielded electron optical system, preserving the parallel beam condition. We demonstrate the performances of the setup by measurements on Cu(001) and Au(111). We estimate at room temperature the energy resolution of the overall system to be $\sim170$ meV from $k_{B}T_{eff}$ of a Cu(001) Fermi level, allowing a direct comparison to photoemission. The spin-resolved operation of the setup has been demonstrated by measuring the Rashba splitting of the Au(111) Shockley surface state. The effective polarization of the electron beam is $P=30\pm3$ \% and the wavevector resolution is $Δk_{F}\lesssim0.06$ Å$^{-1}$. Measurements on the Au(111) surface state demonstrate how the electron beam polarization direction can be tuned in the three spatial dimensions. The maximum of the spin asymmetry is reached when the electron beam polarization is aligned with the in-plane spin-polarization of the Au(111) surface state.
description: The following article has been accepted by Review of Scientific Instruments
Magnetic Excitations in Spin-Orbit Coupled $d^4$ Mott Insulator on Square Lattice
Creators: name: Akbari, Alireza
name: Khaliullin, Giniyat
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the magnetic order and excitations in strong spin-orbit coupled, Van Vleck-type, $d^4$ Mott insulators on a square lattice. Extending the previous work, we include the tetragonal crystal field splitting and explore its effects on magnetic phase diagram and magnon spectra. Two different ordered phases, with in-plane and out-of-plane orientation of the staggered moments, are found for the higher and lower values of the crystal field splitting, respectively. The magnetic excitation spectra for paramagnetic and magnetically ordered phases are calculated and discussed in the context of a candidate spin-orbit $d^4$ Mott insulator Ca$_2$RuO$_4$.
description: 7 pages, 6 figures; to appear in PRB
Muon pair production via $e^{+}e^{-}$ annihilation in the presence of a circularly polarized laser field
Creators: name: Ouali, M.
name: Ouhammou, M.
name: Taj, S.
name: Benbrik, R.
name: Manaut, B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we have investigated the elementary particle reaction ${e}^{+} {e}^{-} \rightarrowμ^{+} μ^{-}$ that results from the electron-positron interaction, at the leading order, with an intense laser wave of circular polarization. We have derived, by annalytical means, the laser-assisted differential cross section expression by using the scattering matrix approach. We have analyzed the energy and the number of exchanged photons dependence of muon pair production in electron-positron annihilation at different centre of mass energies including the $Z$-boson peak. For this reason, a wide range of high centre of mass energies relevant to future $e^{+}e^{-}$ collider were covered to study the cross section behavior. We have found that, for a given number of exchanged photons, laser field strength and frequency, the circularly polarized laser field decreases the total cross section by several orders of magnitudes.
description: 17 pages, 10 figures
Benchmarking the performance of Density Functional Theory and Point Charge Force Fields in their Description of sI Methane Hydrate against Diffusion Monte Carlo
Creators: name: Cox, Stephen J.
name: Towler, Michael D.
name: Alfè, Dario
name: Michaelides, Angelos
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: High quality reference data from diffusion Monte Carlo calculations are presented for bulk sI methane hydrate, a complex crystal exhibiting both hydrogen-bond and dispersion dominated interactions. The performance of some commonly used exchange-correlation functionals and all-atom point charge force fields is evaluated. Our results show that none of the exchange-correlation functionals tested are sufficient to describe both the energetics and the structure of methane hydrate accurately, whilst the point charge force fields perform badly in their description of the cohesive energy but fair well for the dissociation energetics. By comparing to ice Ih, we show that a good prediction of the volume and cohesive energies for the hydrate relies primarily on an accurate description of the hydrogen bonded water framework, but that to correctly predict stability of the hydrate with respect to dissociation to ice Ih and methane gas, accuracy in the water-methane interaction is also required. Our results highlight the difficulty that density functional theory faces in describing both the hydrogen bonded water framework and the dispersion bound methane.
description: 8 pages, 4 figures, 1 table. Minor typos corrected and clarification added in Methods
Discocera cayennensis Laporte 1833
Creators: name: Dellapé, Pablo Matías
name: Martínez, Auria Paula
name: Coscarón, María Del Carmen
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Lecideaceae
Discocera
Discocera cayennensis

description: Discocera cayennensis Laporte 1833
 Distribution: Brazil, French Guiana, Peru, Surinam, and Uruguay.
 Material studied: Uruguay: Vega del Puente Solis: 1 female, Dennier Coll., (MLP).
 New records: Uruguay
 Observations: The general color can also be metallic green.
description: Published as part of Dellapé, Pablo Matías, Martínez, Auria Paula & Coscarón, María Del Carmen, 2003, New distributional records for the asopine pentatomids in temperate South America, pp. 1-16 in Zootaxa 318 on page 4, DOI: 10.5281/zenodo.156763
German Marine Seismic Data Access - NFDI4Earth Pilot 2022/2023 Mid Term Progress
Creators: name: , Janiene
Publisher: name: Zenodo
Year: 2022

description: The NFDI4Earth Pilot German Marine Seismic Data Access is an initiative by the working group Marine Geophysics (AGMAR) of the Deutsche Geophysikalische Gesellschaft. The two main task areas are to establish an agreed standard for data archival and to develop a rescue strategy for legacy seismic data for the foreseeable future. Pilot Projects are one of the community engagement measures of NFDI4Earth (Measure 1.1 in Task Area 2Participate). In open calls ideas for innovative solutions in Research Data Management are collected from the Earth System Science community and selected projects are funded for 1 year. For more information see: https://www.nfdi4earth.de/2participate/pilots. On October 19th and 21st 2022 the first round of pilot projects (2022-2023) presented their progress after half of their project duration in an online event. NFDI4Earth is a consortium of the National Forschungsdaten Infrastruktur (National Research Data Infrastructure) and funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – project number: 460036893.
PLATFORM STRATEGY OF THE QURAN PLATFORM: A CASE STUDY OF THE DIGITAL QURAN PLATFORM AT SYAAMIL GROUP
Creators: name: MUHAMMAD ZUHDAN AINUL IHSAN
name: DODIE TRICAHYONO
name: EDI WITJARA
Publisher: name: Zenodo
Year: 2023
Subjects: Decline Sales of Al Quran; Platform Business Model; Platform Innovation Kit edition 5.0 Loop#; Syaamil Group

description: Abstract
This research centers on the substantial repercussions of the decline in Al Quran sales and significant revenue reduction experienced by Syaamil Group in 2022 due to the COVID-19 pandemic. In response to this circumstance, Syaamil Group opted to devise a business innovation strategy by venturing into the domain of digital platforms. This research aims to show pain points from users and includes solutions that the platform can provide. In addition, this research also seeks to establish the market needs and potential competition that the Syaamil Digital Quran platform will face. This qualitative research uses The Platform Innovation Kit, edition 5.0 Loop#1 Discover and Launch, to dissect pertinent data. The study highlights two main elements in the platform business model: problem, solution, and market behavior. The design of the business model platform uses these four elements, whereas the Syaamil Digital Quran Platform highlights three user segments: consumers, producers, and partners. Market behavior highlights the ecosystem in the platform that refers to emerging needs, where the Al Quran Digital Syaamil platform currently focuses on Islamic content, online Quran recitation classes, and portable mushaf. Based on the data processing results, it is concluded that the Syaamil Platform consists of three ecosystems: Quran readers, Syaamil Group itself, payment gateways, content creators, and Quran teachers. In addition, there is a high need from Platform users to get an Al Quran Platform with Al Quran memorization features, online bookstores, Al Quran learning features, digital mushaf, and ease of waqf.
Digitising the values of cultural artifacts
Creators: name: Dagioglou, Maria
name: Katsamori, Dora
name: Petasis, Georgios
name: Ferrara, Alfio
name: Montanelli, Stefano
name: Grammatas, Theodore
name: Zora, Maria Dimaki
name: Diamantakou, Aikaterini
name: Berni, Marco
name: Fani, Elena
name: Murteira, Carla
name: Díaz-Faes, Alba Morollón
name: Aristodemou, Elena
name: Kokol, Marko
Publisher: name: Zenodo
Year: 2023

description: Have you ever explored how your visitors perceive values associated with the collections of your museum? Have you tried to rethink your collection from a ‘values-perspective’? Do you want to create novel value-centric activities? VAST is a research and innovation action in the context of Horizon 2020 'Curation of digital assets and advanced digitisation actions' that aims to study the transformation of values across space and time and bring them to the forefront of advanced digitisation. The project will trace and inter-link the values: a) of the past through the analysis of collections of narratives, such as theatrical plays, fairy tales, and scientific documents, that come from different places and from significant moments of European history. b) of the present through the collection and digitisation of how values are conveyed today and of how the audiences experience and perceive the communicated values. At the core of the project lies the VAST Digital Platform. What can VAST Digital Platform offer to you? A methodology for capturing you visitor’s experience A toolkit of value-based educational activities Tools for conducting online user surveys Tools for annotating artefacts with values The poster proposal demonstrates the offerings of the VAST platform, along with some exemplar activities that has helped us in capturing and digitising values, as perceived by audiences engaging in activities like visiting a museum, or participating in an educational activity.
Discocera coccinea Fabricius 1798
Creators: name: Dellapé, Pablo Matías
name: Martínez, Auria Paula
name: Coscarón, María Del Carmen
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Lecideaceae
Discocera
Discocera coccinea

description: Discocera coccinea (Fabricius 1798)
 Distribution: Bolivia, Brazil, Colombia, Ecuador, Paraguay, Peru, and Surinam. Material studied (Fig. 4): Bolivia: Santa Cruz: Buena Vista: 17º 47´S 63º 12´W, 1 male, III/1951. Pando: Santa Fe de Chipri: 10º 47´S 66º 59´W, 1 male, 1 female, IV/ 1953, Martínez col., (MLP). Paraguay: 1 male, 3 females, (MLP).
 Observations: We confirm the presence of this species in Paraguay.
description: Published as part of Dellapé, Pablo Matías, Martínez, Auria Paula & Coscarón, María Del Carmen, 2003, New distributional records for the asopine pentatomids in temperate South America, pp. 1-16 in Zootaxa 318 on page 4, DOI: 10.5281/zenodo.156763
Scholarly publishing in a developing nation
Creators: name: Bakoush, Omran
name: Bredan, Amin
name: Tashani, Osama
Publisher: name: Zenodo
Year: 2023
Subjects: citations
Scholarly publishing
Editors

description: The scholarly literature from the developing world is low, and the scientific impact in some countries, including Libya, is much lower compared with their peers. This study explores the editorial practices and editors' perspectives to gain insight into the standard of scholarly publishing in Libya.
description: Microsoft Excel
description: Between January 21th 2022 and February 12th 2022, the editors-in-chief (EC) of Libyan academic journals were identified and invited to participate in this study, with a self-administered questionnaire that includes questions on the editorial practices, the degree of satisfaction with the submitted and published manuscripts, the review process, and the journal's performance, as well as the challenges facing the journals. The websites of the journals were also examined for journal quality and indexation coverage and citations were assessed. Moreover, we examined the number of citations in Google Scholar for all articles published in 2019 in each journal. Descriptive statistics were used to quantitatively summarize the data and thematic analysis were used for the narrative text.
Distinguishing $d_{xz}+i d_{yz}$ and $d_{x^2-y^2}$ pairing in $Sr_2RuO_4$ by high magnetic field H-T phase diagrams
Creators: name: Gupta, R.
name: Shallcross, S.
name: Quintanilla, J.
name: Gradhand, M.
name: Annett, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Employing a realistic tight-binding model describing the Fermi surface in the normal state of $Sr_2RuO_4$ we map out magnetic field versus temperature phase diagrams for $d_{x^2-y^2} (B_{1g})$ and $d_{xz}+id_{yz} (E_g)$ pairing types. Both produce (i) a similar Knight shift suppression of $\sim\!80\%$ and (ii) a bicritical point at $T=0.88$K separating low field second order phase transitions from high field Pauli limiting first order transitions. We find, however, strikingly different phase behaviour within the high field Pauli limiting region. For $d_{x^2-y^2}$ pairing symmetry an additional lower critical line of first order transitions is found (terminating in a critical point at $T=0.09-0.22$K depending on the choice of Hubbard U parameters) while for $d_{xz}+id_{yz}$ no such additional high field phase transitions are found for any choice of Hubbard U. In conjunction with our earlier finding [{\it Physical Review B} {\bf 102} (23), 235203] for $p$-wave helical pairing of a still different high field phase structure (a lower critical field line meeting the upper critical field line exactly at the bicritical point), we suggest high field Pauli limiting phase structure as a possible route to distinguish pairing symmetries in this material.
description: 8 pages, 8 figures
Euthyrhynchus floridanus Linnaeus 1767
Creators: name: Dellapé, Pablo Matías
name: Martínez, Auria Paula
name: Coscarón, María Del Carmen
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Euthyrhynchus
Euthyrhynchus floridanus

description: Euthyrhynchus floridanus (Linnaeus 1767)
 Distribution: Bolivia, Brazil, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, México, Panamá, and United States.
 Material studied (Fig. 5): Bolivia: La Paz: Coroico: 16º 11´S 67º 44´W, 3 males, 2 females, Denier Coll., (MLP). Pando: Santa Fé de Chipri: 10º 47´S 66º 59´W, 1 female, IV/1953, Martínez col., (MLP).
 Observations: There are female specimens from Bolivia that have the apex of the head red as in the Central American populations.
description: Published as part of Dellapé, Pablo Matías, Martínez, Auria Paula & Coscarón, María Del Carmen, 2003, New distributional records for the asopine pentatomids in temperate South America, pp. 1-16 in Zootaxa 318 on pages 4-6, DOI: 10.5281/zenodo.156763
A gravitational and dynamical framework of star formation: The Orion Nebula
Creators: name: Kounkel, Marina
name: Stassun, Keivan G.
name: Covey, Kevin
name: Hartmann, Lee
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Orion Nebula Cluster (ONC) is the most massive region of active star formation within a kpc of the Sun. Using Gaia DR3 parallaxes and proper motions, we examine the bulk motions of stars radially and tangentially relative to the cluster center. We find an age gradient with distance to the stars in the ONC, from 385 pc for the oldest stars, to 395 pc for the younger stars, indicating that the star forming front is propagating into the cloud. We find an organized signature of rotation of the central cluster, but it is present only in stars younger than 2 Myr. We also observe a net infall of young stars into the center of the ONC's deep gravitational potential well. The infalling sources lie preferentially along the filament, on the other hand, outflowing sources are distributed spherically around the cluster, and they have larger velocity dispersion. We further propose a solution to a long-standing question of why the ONC shows a weak signature of expansion even though the cluster is likely bound: much of this expansion may be driven by unstable N-body interactions among stars, resulting in low-velocity ejections. Though analyzing signatures imprinted on stellar dynamics across different spatial scales, these observation shed new light on the signatures of formation and evolution of young clusters.
description: 14 pages, accepted to MNRAS
O processo do amparador na conscienciologia usando: Kanban para trabalhar a Pensenologia em uma pessoa nível financeiro Pobreza Extrema de nível evolutivo Omni-consciência
Creators: name: Brandl, Edenilson
Publisher: name: Zenodo
Year: 2023
Subjects: amparador
conscienciologia
Kanban
Pensenologia

description: No processo do amparador na conscienciologia, o método Kanban pode ser aplicado para trabalhar a pensenologia em indivíduos em situação de pobreza extrema com nível evolutivo de omni-consciência.
Hydrophilic Porous Materials as Helmet Padding Able to Prevent Traumatic Brain Injuries
Creators: name: Sokoloff, J. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Medical Physics (physics.med-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The minimum possible value of the average deceleration of the head of a player engaged in an impact sport such as football or hockey, as a result of an impact of his/her helmet with a surface or another player, is inversely proportional to the helmet padding thickness. Since there are practical limits to its maximum thickness, it is difficult to significantly reduce the average acceleration. There is evidence, however, that the peak, rather than the average, acceleration is the most significant cause of brain injury. It is proposed here that brain injuries that occur as a result of an impact, could be reduced by using as padding a hydrophilic porous material swollen with fluid. The friction experienced by the fluid as it is squeezed out of the porous material in an impact can "tune" the acceleration of the skull so that it is never significantly higher than its average during the impact.
description: 15 pages, 10 figures
Oplomus catena Drury 1782
Creators: name: Dellapé, Pablo Matías
name: Martínez, Auria Paula
name: Coscarón, María Del Carmen
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Oplomus
Oplomus catena

description: Oplomus catena (Drury 1782)
 Distribution: Argentina, Brazil, French Guiana, Paraguay and Uruguay.
 Material studied (Fig. 6): Argentina: Misiones: 1 male, P. Aguirre col., (MACN). Paraguay: 1 male, Berg Coll., (MLP); Independencia, 1 female, (MACN).
description: Published as part of Dellapé, Pablo Matías, Martínez, Auria Paula & Coscarón, María Del Carmen, 2003, New distributional records for the asopine pentatomids in temperate South America, pp. 1-16 in Zootaxa 318 on page 6, DOI: 10.5281/zenodo.156763
Short distance correlators in the XXZ spin chain for arbitrary string distributions
Creators: name: Mestyán, M.
name: Pozsgay, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In this letter we consider expectation values of local correlators in highly excited states of the spin-1/2 XXZ chain. Assuming that the string hypothesis holds we formulate the following conjecture: The correlation functions can be computed using the known factorized formulas of the finite temperature situation, if the building blocks are computed via certain linear integral equations using the string densities only. We prove this statement for the nearest neighbour z-z correlator for states with arbitrary string densities. Also, we check the conjecture numerically for other correlators in the finite temperature case. Our results pave the way towards the computation of the stationary values of correlators in non-equilibrium situations using the so-called quench-action approach.
description: 15 pages, v2: minor modifications, v3: minor modifications
Cyber-Cosmos: A New Citizen Science Concept in A Dark Sky Destination
Creators: name: Barbosa, Domingos
name: Coelho, Bruno
name: Bergano, Miguel
name: Magalhães, Catarina
name: Mendonça, David
name: Silva, Daniela
name: Correia, Alexandre C. M.
name: Pandeirada, João
name: Ribeiro, Valério
name: Esposito, Thomas
name: Marchis, Franck
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Astrotourism and related citizen science activities are becoming a major trend of a sustainable, high-quality tourism segment, core elements to the protection of Dark skies in many countries. In the Summer of 2020, in the middle of COVID pandemics, we started an initiative to train young students - Cyber-Cosmos - using an Unistellar eVscope, a smart, compact and user-friendly digital telescope that offers unprecedented opportunities for deep-sky observation and citizen science campaigns. Sponsored by the Ciência Viva Summer program, this was probably the first continuous application of this equipment in a pedagogical and citizen-science context, and in a pandemic context. Pampilhosa da Serra, home to a certified Dark Sky destination (Aldeias do Xisto) in central Portugal, was the chosen location for this project, where we expect astrotourism and citizen science to flourish and contribute to space sciences education.
description: Manuscript presented at the International Astronautical Congress, IAC 2021, Dubai, United Arab Emirates, 25 - 29 October 2021. Copyright by IAF
Chemical composition of two cultivars of Moringa oleífera Lam. With two different sowing densities and cutting frequencies.
Creators: name: León, Larry
name: Ortega, Jorge
name: Rivas, Luis
name: Kenedi Jaimes
Publisher: name: Zenodo
Year: 2020
Subjects: Moringa oleifera
nutritional value
planting density
cutting frequency

description: The Moringa is a tree from the south of the Himalayan wide spread among the tropics as an alternative for human nutrition based on the nutritional value of it leaves, adaptability and high growing rate, to evaluate the chemical composition of two cultivars, Común and Super of Moringa oleífera Lam. Using two different sowing densities (0.1m x 0.1m and 0.4m x 0.4m) and cutting frequencies (45, 60 and 75 days after sowing). The investigation was carried out at the Agronomy Faculty, Zulia University, Venezuela. The experimental design used was a randomized complete blocks with 3 repetitions. The contents of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF) and ash were determined using the AOAC methodology, and Van Soest. Results showed significant differences for the variables, DM (p <0.05) for the common cultivar at 0.40m with a 91.3%; CP content obtained significant differences (p <0.05) showing 24.17% with a cutting frequency of 45 days. No significant differences found between cultivars, the interaction of the sowing density and cutting frequency directly affect the nutritional content of the moringa. The chemical composition of these cultivars implies a potential use for human and animal nutrition in the tropics.
Position-momentum uncertainty products
Creators: name: Ahmed, Zafar
name: Yadav, Indresh
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We point out two interesting features of position-momentum uncertainty product: $U=Δx Δp$. We show that two special (non-differentiable) eigenstates of the Schr{ö}dinger operator with the Dirac Delta potential $[V(x)=-V_0 δ(x)],V_0>0$, also satisfy the Heisenberg's uncertainty principle by yielding $U> \frac{\hbar}{2}$. One of these eigenstates is a zero-energy and zero-curvature bound state.
description: Modified version, no Figures, one Table, 8 pages, to appear in Eur. J. Phys
Precise predictions for $A_H q_-$ associated production in the littlest Higgs model with $T$ parity at the LHC
Creators: name: Xiao-Dong, Yang
name: Shou-Jian, Xiong
name: Wen-Gan, Ma
name: Ren-You, Zhang
name: Lei, Guo
name: Xiao-Zhou, Li
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In the framework of the littlest Higgs model with $T$ parity, we present complete calculations for the $A_H q_-$ $(q_-=u_-, \bar{u}_-,d_-, \bar{d}_-,c_-, \bar{c}_-,s_-, \bar{s}_-)$ associated production up to the QCD next-to-leading order (NLO) at the CERN Large Hadron Collider with subsequent pure weak decay of $T$-odd mirror quark. We apply the PROSPINO scheme to avoid the double counting problem and to keep the convergence of the perturbative QCD description. The theoretical correlations between the integrated cross section and the factorization and renormalization scale, the global symmetry-breaking scale and the Yukawa coupling parameter are studied separately. We also provide the kinematic distributions of the final decay products. Our numerical results show that the NLO QCD correction reduces the scale uncertainty and enhances the leading-order integrated cross section remarkably, with the $K$ factor varying in the range of $1.41 \sim 1.68$ ($1.58 \sim 1.89$) as the increment of the global symmetry-breaking scale $f$ from $500~{\rm GeV}$ to $1.5~{\rm TeV}$ ($1.1~{\rm TeV}$) at the $\sqrt{s} = 14~{\rm TeV}$ ($8~{\rm TeV}$) LHC. We find that it is possible to select the signal events of the $A_Hq_-$ production from its background by putting proper cuts on the final leading jet and missing energy.
description: 28 pages, 14 figures
Boundary effects on the supersymmetric sine-Gordon model through light-cone lattice approach
Creators: name: Matsui, Chihiro
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We discussed subspaces of the N=1 supersymmetric sine-Gordon model with Dirichlet boundaries through light-cone lattice regularization. In this paper, we showed, unlike the periodic boundary case, both of Neveu-Schwarz (NS) and Ramond (R) sectors of a superconformal field theory were obtained. Using a method of nonlinear integral equations for auxiliary functions defined by eigenvalues of transfer matrices, we found that an excitation state with an odd number of particles is allowed for a certain value of a boundary parameter even on a system consisting of an even number of sites. In a small-volume limit where conformal invariance shows up in the theory, we derived conformal dimensions of states constructed through the lattice-regularized theory. The result shows existence of the R sector, which cannot be obtained from the periodic system, while a winding number is restricted to an integer or a half-integer depending on boundary parameters.
description: Typos were corrected
Reducing Injection-Related Safety Events in Retina Clinics
Creators: name: John, Denise A
name: Hansemann, Beth
name: Lieu, Philip
name: Weizer, Jennifer
Publisher: name: Taylor & Francis
Year: 2022
Subjects: adverse event
healthcare failure mode and effect analysis
intravitreal injections
patient safety

description: Purpose: At the Kellogg Eye Center, we identified a series of injection-related patient safety events that led to a systematic review and redesign of our intravitreal injection protocol. The objective was to reduce injection-related patient safety events to zero. Methods: A retroactive review, using the Healthcare Failure Mode and Effect Analysis model as a guide, was performed on our process for delivering intravitreal injections to identify potential failure modes and their impact. Results: The total number of injection-related safety events was 1 in 2017 and 16 in 2018 at baseline. Potential vulnerabilities identified included errors in communication, patient identification, clinical documentation, and medication orders. The injection protocol was redesigned. After implementation, there were zero injection-related safety events in all Kellogg Eye Center Retina clinics for the subsequent 18-month follow-up period. Conclusion: It is possible to redesign and implement an intravitreal injection protocol to reduce the rate of safety events in a large academic eye center.
High efficiency uniform positron beam loading in a hollow channel plasma wakefield accelerator
Creators: name: Zhou, Shiyu
name: Hua, Jianfei
name: Su, Qianqian
name: Mori, Warren B.
name: Joshi, Chan
name: Lu, Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We propose a novel positron beam loading regime in a hollow plasma channel that can efficiently accelerate $e^+$ beam with high gradient and narrow energy spread. In this regime, the $e^+$ beam coincides with the drive $e^-$ beam in time and space and their net current distribution determines the plasma wakefields. By precisely shaping the beam current profile and loading phase according to explicit expressions, three-dimensional Particle-in-Cell (PIC) simulations show that the acceleration for $e^+$ beam of $\sim$nC charge with $\sim$GV/m gradient, $\lesssim$0.5% induced energy spread and $\sim$50% energy transfer efficiency can be achieved simultaneously. Besides, only tailoring the current profile of the more tunable $e^-$ beam instead of the $e^+$ beam is enough to obtain such favorable results. A theoretical analysis considering both linear and nonlinear plasma responses in hollow plasma channels is proposed to quantify the beam loading effects. This theory agrees very well with the simulation results and verifies the robustness of this beam loading regime over a wide range of parameters.
Oplomus festivus Dallas 1851
Creators: name: Dellapé, Pablo Matías
name: Martínez, Auria Paula
name: Coscarón, María Del Carmen
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Oplomus
Oplomus festivus

description: Oplomus festivus Dallas 1851
 Distribution: Argentina, Bolivia, Brazil, Colombia, Ecuador, Panamá, Paraguay, Peru, Surinam, and Venezuela.
 Material studied (Fig. 6): Argentina: Corrientes: Sto. Tome: 28º 33´S 56º 2´W, 1 female, (MLP). Salta: Oran 23º 8´S 64º 19´W, 2 males, (MACN). Santa Fe: 3 males, 2 females, (MACN). Tucumán: J. M. Arnau Coll., (MACN). Bolivia: Santa Cruz: 17º 47´S 63º 12´W, 1 female, (MACN). Brazil: Pará: Matto Grosso, 1 male, (MACN). Paraguay: Asunción: 25º 18´S 57º 38´W, 1 female, (MACN).
description: Published as part of Dellapé, Pablo Matías, Martínez, Auria Paula & Coscarón, María Del Carmen, 2003, New distributional records for the asopine pentatomids in temperate South America, pp. 1-16 in Zootaxa 318 on page 7, DOI: 10.5281/zenodo.156763
Heisenberg Uncertainty Relation Revisited
Creators: name: Fujikawa, Kazuo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is shown that all the known uncertainty relations are the secondary consequences of Robertson's relation. The basic idea is to use the Heisenberg picture so that the time development of quantum mechanical operators incorporate the effects of the measurement interaction. A suitable use of triangle inequalities then gives rise to various forms of uncertainty relations. The assumptions of unbiased measurement and unbiased disturbance are important to simplify the resulting uncertainty relations and to give the familiar uncertainty relations such as a naive Heisenberg error-disturbance relation. These simplified uncertainty relations are however valid only conditionally. Quite independently of uncertainty relations, it is shown that the notion of precise measurement is incompatible with the assumptions of unbiased measurement and unbiased disturbance. We can thus naturally understand the failure of the naive Heisenberg's error-disturbance relation, as was demonstrated by the recent spin-measurement by J. Erhart, et al..
description: 13 pages, 1 figure, Invited talk given at the Conference in Honour of the 90th Birthday of Freeman Dyson, August 26-29, 2013, Nanyang Technological University, Singapore. Some of the statements made more precise and references specified in more detail. Journal reference added
The Challenges Facing Law Enforcement In Live-Streamed Child Sexual Abuse Cases
Creators: name: III, Daniel Dale Spencer
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 480408
subject: Law, science and technology
classificationCode: 460404
subject: Digital forensics
classificationCode: 440207
subject: Cybercrime
classificationCode: 440218
subject: Victims
classificationCode: 440201
subject: Causes and prevention of crime

description: The live streaming of child sexual abuse is a serious problem that demands urgent attention from law enforcement, legislature, and the platforms that it occurs on. While child sexual exploitation and abuse crimes have been occurring for decades, the growing number of internet users combined with the recent Covid-19 outbreak has shifted a lot of these crimes online. Crimes that occur over live streams are particularly difficult to investigate. Previous research has highlighted four main types of challenges associated with these types of cases: legislative, social, technical, and investigative. While studies have been conducted that explored these challenges individually, this study fills a research gap by exploring which of these challenges affect law enforcement personnel that work live-streamed child sexual abuse cases post-Covid-19. For this study, an anonymous online survey was sent out to law enforcement individuals and agencies nationwide. The survey was actively distributed for one month. Out of the 29 responses received, 13 participants qualified to take the survey and were asked about the challenges they faced working these types of cases and about any solutions to these challenges. After collecting the data, descriptive statistics identified the challenges, and a thematic analysis was conducted. Following a grounded theory process, the analysis identified five main themes that encompassed multiple types of challenges and solutions. These themes were: a lack of consensus, education, the role of application service providers and platforms, a need for better technology, and out-of-jurisdiction challenges. These themes explored in-depth the participants’ responses and further identified the challenges facing law enforcement that work live-streamed child sexual abuse cases, as well as any current solutions to these challenges. Two main challenges frequently mentioned by the participants were end-to-end encryption and anonymizing services, and one of the main solutions to many of the challenges was the education of parents, children, and legislators. For future research, the author recommends exploration of the following topics: the investigation of the factors that play strong roles in determining the time it takes to investigate live-streamed child sexual abuse cases, research related to how AI could assist law enforcement working these cases, further exploration of a framework for the education of parents and children about social media usage and the risks of live streaming, how social platforms can be used in many ways, and research that examines how often law enforcement encounters live-streamed child sexual abuse cases/whether these cases are common or not.
Encircling exceptional points in a Riemann sphere for efficient asymmetric polarization-locked devices
Creators: name: Li, Aodong
name: Chen, Lin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Dynamically encircling exceptional points (EPs) in two-dimensional Hamiltonian parameter space has enabled intriguing chiral dynamics in which the final state of the system depends on the encircling direction. Here, we show that full Hamiltonian parameter space can be described in a Riemann sphere, and those points on the parameter space boundary with the eigenstates of the system Hamiltonian being convergent, converge to the north vertex. We present that encircling one EP on the Riemann sphere leads to chiral response, and a continuous encircling trajectory passing through the north vertex can realize near-unity asymmetrical transmission. An asymmetric polarization-locked devices are designed by mapping the encircling path onto the L-shaped silicon waveguides. We experimentally demonstrate near 100% asymmetrical polarization conversion efficiency between TE and TM modes with the mode crosstalk below -20 dB at 1550 nm. Our results bring the study of EP-associated dynamics into the realm of highly-efficient asymmetrical polarization conversion and power up new application opportunities for EP physics.
description: 16 pages, 5 figures
Three-loop HTLpt thermodynamics at finite temperature and chemical potential
Creators: name: Haque, Najmul
name: Bandyopadhyay, Aritra
name: Andersen, Jens O.
name: Mustafa, Munshi G.
name: Strickland, Michael
name: Su, Nan
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the three-loop thermodynamic potential of QCD at finite temperature and chemical potential(s) using the hard-thermal-loop perturbation theory (HTLpt) reorganization of finite temperature and density QCD. The resulting analytic thermodynamic potential allows us to compute the pressure, energy density, and entropy density of the quark-gluon plasma. Using these we calculate the trace anomaly, speed of sound, and second-, fourth-, and sixth-order quark number susceptibilities. For all observables considered we find good agreement between our three-loop HTLpt calculations and available lattice data for temperatures above approximately 300 MeV.
description: 48 pages, 14 figures; v2 - published version
Nuclear DFT analysis of electromagnetic moments in odd near doubly magic nuclei
Creators: name: Sassarini, P. L.
name: Dobaczewski, J.
name: Bonnard, J.
name: Ruiz, R. F. Garcia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We use the nuclear density functional theory to determine nuclear electric quadrupole and magnetic dipole moments in all one-particle and one-hole neighbours of eight doubly magic nuclei. We align angular momenta along the intrinsic axial-symmetry axis with broken time-reversal symmetry, which allows us to explore fully the self-consistent charge, spin, and current polarisation. Spectroscopic moments are determined for symmetry-restored wave functions and compared with available experimental data. We find that the obtained polarisations do not call for using quadrupole- or dipole-moment operators with effective charges or effective g-factors.
description: 16 LaTeX pages, 6 figures, extended version, accepted as a Letter in Journal of Physics G
Electrons and phonons in single layers of hexagonal indium chalcogenides from ab initio calculations
Creators: name: Zolyomi, V.
name: Drummond, N. D.
name: Fal'ko, V. I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We use density functional theory to calculate the electronic band structures, cohesive energies, phonon dispersions, and optical absorption spectra of two-dimensional In$_2$X$_2$ crystals, where X is S, Se, or Te. We identify two crystalline phases (alpha and beta) of monolayers of hexagonal In$_2$X$_2$, and show that they are characterized by different sets of Raman-active phonon modes. We find that these materials are indirect-band-gap semiconductors with a sombrero-shaped dispersion of holes near the valence-band edge. The latter feature results in a Lifshitz transition (a change in the Fermi-surface topology of hole-doped In$_2$X$_2$) at hole concentrations $n_{\rm S}=6.86\times 10^{13}$ cm$^{-2}$, $n_{\rm Se}=6.20\times 10^{13}$ cm$^{-2}$, and $n_{\rm Te}=2.86\times 10^{13}$ cm$^{-2}$ for X=S, Se, and Te, respectively, for alpha-In$_2$X$_2$ and $n_{\rm S}=8.32\times 10^{13}$ cm$^{-2}$, $n_{\rm Se}=6.00\times 10^{13}$ cm$^{-2}$, and $n_{\rm Te}=8.14\times 10^{13}$ cm$^{-2}$ for beta-In$_2$X$_2$.
description: 9 pages. arXiv admin note: text overlap with arXiv:1302.6067
title: Investigating the Efficacy of Online Text Reconstruction Exercises for Facilitating the Use of Metadiscourse Markers in First-Year Japanese University Students’ Argumentative Writing
Creators: name: Gann, David A.
Publisher: name: The Open University
Year: 2023

description: This thesis examines pedagogical merits of online text reconstruction exercises (OTREs) and examines their efficacy in teaching argumentative writing (AW) and students’ experience of learning through them. It looks at a specific type of OTRE called WebSequiturs and that application’s unique pedagogical affordances. Key research questions ask to what extent OTREs can influence EFL university students to use select metadiscourse markers (MDMs) in written argument; and to what extent those exercises can guide students to use those MDMs appropriately. A third research question asks about students’ perceptions of their experiences completing OTREs. This study was conducted at Tokyo University of Science and involved nine students in a first-year undergraduate compulsory English course. This study strives for an interpretive understanding of participants’ experiences. Hence, I pursue this topic through action research. I also take a mixed-methods approach, using both quantitative and qualitative data. Quantitative data shows that following OTRE sessions, frequency of the use of selected MDMs in participants’ writing increased. The variety of MDMs having similar meanings likewise increased. There was also an increase in the range of communicative functions across which MDMs were used. Moreover, the unique uses of select MDMs also increased. Finally, there was an increase in appropriacy of use. Qualitative data showed that during the OTREs participants sometimes reached metalinguistic levels of awareness, as evidenced by their utterances. These utterances were frequently followed by increased levels of appropriacy of MDM use in participants’ writing. During semi-structured interviews, participants responded, evincing the view that OTREs had played an important role in their developing use of MDMs in their AW. The findings of this study suggest that OTREs are helpful in influencing English learners to become autonomous users of selected MDMs and that they can also guide learners to use MDMs appropriately. The findings also show that participants understood the purpose of the OTREs and valued the exercises for their linguistic instruction and for their collaborative qualities. In my conclusion, I recommend that universities implement programs using similar OTREs and train their teachers in how to maximise their efficacy in teaching AW.
O processo do amparador na conscienciologia usando: ISO 14001 (Norma de Gestão Ambiental) para trabalhar a Egocídio em uma pessoa nível financeiro Classe Média-Alta de nível evolutivo Autconsciência
Creators: name: Brandl, Edenilson
Publisher: name: Zenodo
Year: 2023
Subjects: amparador
conscienciologia
ISO 14001 (Norma de Gestão Ambiental)
Egocídio

description: No processo do amparador na conscienciologia, a norma ISO 14001, que trata de gestão ambiental, pode ser aplicada para trabalhar o egocídio em indivíduos de classe média-alta com nível evolutivo de autconsciência.