cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Entanglement Entropy in Excited States of the Quantum Lifshitz Model
Creators: name: Parker, Daniel E.
name: Vasseur, Romain
name: Moore, Joel E.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We investigate the entanglement properties of an infinite class of excited states in the quantum Lifshitz model (QLM). The presence of a conformal quantum critical point in the QLM makes it unusually tractable for a model above one spatial dimension, enabling the ground state entanglement entropy for an arbitrary domain to be expressed in terms of geometrical and topological quantities. Here we extend this result to excited states and find that the entanglement can be naturally written in terms of quantities which we dub "entanglement propagator amplitudes" (EPAs). EPAs are geometrical probabilities that we explicitly calculate and interpret. A comparison of lattice and continuum results demonstrates that EPAs are universal. This work shows that the QLM is an example of a 2+1d field theory where the universal behavior of excited-state entanglement may be computed analytically.
description: Published version. Invited contribution to the special issue of J. Phys. A: "John Cardy's scale-invariant journey in low dimensions: a special issue for his 70th birthday"
Efficient Optical flow and Stereo Vision for Velocity Estimation and Obstacle Avoidance on an Autonomous Pocket Drone
Creators: name: McGuire, Kimberly
name: de Croon, Guido
name: De Wagter, Christophe
name: Tuyls, Karl
name: Kappen, Hilbert
Publisher: name: arXiv
Year: 2016
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Miniature Micro Aerial Vehicles (MAV) are very suitable for flying in indoor environments, but autonomous navigation is challenging due to their strict hardware limitations. This paper presents a highly efficient computer vision algorithm called Edge-FS for the determination of velocity and depth. It runs at 20 Hz on a 4 g stereo camera with an embedded STM32F4 microprocessor (168 MHz, 192 kB) and uses feature histograms to calculate optical flow and stereo disparity. The stereo-based distance estimates are used to scale the optical flow in order to retrieve the drone's velocity. The velocity and depth measurements are used for fully autonomous flight of a 40 g pocket drone only relying on on-board sensors. The method allows the MAV to control its velocity and avoid obstacles.
description: 7 pages, 10 figures, Published at IEEE Robotics and Automation Letters
Project 1640 Observations of the White Dwarf HD 114174 B
Creators: name: Bacchus, E.
name: Parry, I. R.
name: Oppenheimer, R.
name: Aguilar, J.
name: Beichman, C.
name: Brenner, D.
name: Burruss, R.
name: Cady, E.
name: Luszcz-Cook, S.
name: Crepp, J.
name: Dekany, R.
name: Gianninas, A.
name: Hillenbrand, L.
name: Kilic, M.
name: King, D.
name: Lockhart, T. G.
name: Matthews, C. T.
name: Nilsson, R.
name: Pueyo, L.
name: Rice, E. L.
name: Roberts, L. C.
name: Sivaramakrishnan, A.
name: Soummer, R.
name: Vasisht, G.
name: Veicht, A.
name: Zhai, C.
name: Zimmerman, N. T.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the first near infra-red spectrum of the faint white dwarf companion HD 114174 B, obtained with Project 1640. Our spectrum, covering the Y, J and H bands, combined with previous TRENDS photometry measurements, allows us to place further constraints on this companion. We suggest two possible scenarios; either this object is an old, low mass, cool H atmosphere white dwarf with Teff ~ 3800 K or a high mass white dwarf with Teff > 6000 K, potentially with an associated cool (Teff ~ 700 K) brown dwarf or debris disk resulting in an infra-red excess in the L band. We also provide an additional astrometry point for 2014 June 12 and use the modelled companion mass combined with the RV and direct imaging data to place constraints on the orbital parameters for this companion.
description: Accepted for publication in MNRAS
Diffuse cosmic rays shining in the Galactic center: A novel interpretation of H.E.S.S. and Fermi-LAT gamma-ray data
Creators: name: Gaggero, D.
name: Grasso, D.
name: Marinelli, A.
name: Taoso, M.
name: Urbano, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a novel interpretation of the $γ$-ray diffuse emission measured by Fermi-LAT and H.E.S.S. in the Galactic center (GC) region and the Galactic ridge (GR). In the first part we perform a data-driven analysis based on PASS8 Fermi-LAT data: we extend down to few GeV the spectra measured by H.E.S.S. and infer the primary cosmic-ray (CR) radial distribution between 0.1 and 3 TeV. In the second part we adopt a CR transport model based on a position-dependent diffusion coefficient. Such behavior reproduces the radial dependence of the CR spectral index recently inferred from the Fermi-LAT observations. We find that the bulk of the GR emission can be naturally explained by the interaction of the diffuse steady-state Galactic CR sea with the gas present in the Central Molecular Zone. Although our results leave room for a residual radial-dependent emission associated with a central source, the relevance of the large-scale background prevents from a solid evidence of a GC Pevatron.
description: 5 pages, 3 figures, accepted for publication in Physical Review Letters
Realizing and Adiabatically Preparing Bosonic Integer and Fractional Quantum Hall states in Optical Lattices
Creators: name: He, Yin-Chen
name: Grusdt, Fabian
name: Kaufman, Adam
name: Greiner, Markus
name: Vishwanath, Ashvin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the ground states of 2D lattice bosons in an artificial gauge field. Using state of the art DMRG simulations we obtain the zero temperature phase diagram for hardcore bosons at densities $n_b$ with flux $n_ϕ$ per unit cell, which determines a filling $ν=n_b/n_ϕ$. We find several robust quantum Hall phases, including (i) a bosonic integer quantum Hall phase (BIQH) at $ν=2$, that realizes an interacting symmetry protected topological phase in 2D (ii) bosonic fractional quantum Hall phases including robust states at $ν=2/3$ and a Laughlin state at $ν=1/2$. The observed states correspond to the bosonic Jain sequence ($ν=p/(p+1)$) pointing towards an underlying composite fermion picture. In addition to identifying Hamiltonians whose ground states realize these phases, we discuss their preparation beginning from independent chains, and ramping up interchain couplings. Using time dependent DMRG simulations, these are shown to reliably produce states close to the ground state for experimentally relevant system sizes. Besides the wave-function overlap, we utilize a simple physical signature of these phases, the non-monotonic behavior of a two-point correlation, a direct consequence of edge states in a finite system, to numerically assess the effectiveness of the preparation scheme. Our proposal only utilizes existing experimental capabilities.
description: refs added, typo corrected
title: Julgeolekupoliitika mõttekojad Balti riikides
Creators: name: Rämmer, Algo
Publisher: name: Tallinn: Sisekaitseakadeemia
Year: 2022
Subjects: classificationCode: 5
subject: FOS: Social sciences

description: Aasta-aastalt on suurenenud kompetentsikeskuste osa poliitikate kujundamisel. Kodanikuühiskonna tugevus seostub riigi kerksus- ja heidutusvõimega, suutlikkusega seista vastu suurriikide imperialistlikele ambitsioonidele. Ühtlasi
aitab kodanikuühiskonna kaasamine poliitikate kujundamisse ja elluviimisse toime tulla suurenevate hübriidohtudega. Julgeolekupoliitika mõttekodade kaardistamine võimaldab ühtlasi välja selgitada nende pädevusvaldkonnad.

Võtmesõnad/Keywords: julgeolekupoliitika; mõttekojad; Balti riigid; security policy;  Baltic countries
description: 1. Sissejuhatus ; 2. Eesti mõttekojad ; 3. Läti mõttekojad ; 4. Leedu mõttekojad ; 5. Ülikoolid ja julgeoleku-uuringud ; 6. Mõttekodade kompetentsivaldkonnad ; 7. Kokkuvõte ; 8. Kasutatud allikad ; 9. Lisa
Exact fundamental limits of the first and second hyperpolarizabilities
Creators: name: Lytel, Rick
name: Mossman, Sean
name: Crowell, Ethan L.
name: Kuzyk, Mark G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: This letter calculates the exact fundamental limits of the first (β) and second (γ) hyperpolarizabilities using Monte-Carlo sampling of energy spectra and transition moments constrained by the diagonal Thomas-Reiche-Kuhn (TRK) sum rules and filtered by the off-diagonal TRK sum rules. The upper bounds of β and γ are determined from these quantities by applying error-refined extrapolation to perfect compliance to the sum rules. The method yields the largest diagonal component of the hyperpolarizabilities for an arbitrary number of interacting electrons in any number of dimensions without the necessity for exotic interactions or unconventional spectra. The results show that the fundamental limits agree with those achieved by potential optimization and direct solution of mechanical Hamiltonians, about 30% (40%) below original estimates of the limits for β (γ), and show that the special cases that lead to divergent nonlinearities in the many-state catastrophe are not physically realizable. Thus, this letter shows for the first time that the fundamental limits are rigorously exact and are achievable without exotic material designs.
Innovative strategies for awareness creation on plastic waste management in Nigeria.pdf
Creators: name: Orji, Evelyn   Ijeoma
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: The demand for plastic products is on the rise with increasing demand in different sectors of human society. This amounts to the generation of plastic waste globally at an alarming rate thereby leading to plastic pollution. This study identified that plastic pollution is one of the challenges plaguing the universe status quo with more than estimated eighty million tons of plastic-related wastes being released into the sea annually. Plastic pollution affects the health, socio-economic, and agricultural sectors in Nigeria in a profound way. This study further identified the great need for proper plastic waste management strategies in order to enhance public health in Nigeria. It recommended the innovative tools of poetry, music, and educational blogs among others for use in plastic pollution education for sustainable development in Nigeria. It also recommended plastic recycling as one of the innovative strategies to enhance public health for sustainable development in Nigeria. This study issued a clarion call for more intensive research on the impacts of plastic pollution on public health in Nigeria. It concluded by highlighting the need for greater international collaborations and partnerships in finding a sustainable solution to the global menace. Keywords: Climate change, education, plastic pollution, public health, sustainable development, waste
The Interaction of Successive Coronal Mass Ejections: A Review
Creators: name: Lugaz, Noé
name: Temmer, Manuela
name: Wang, Yuming
name: Farrugia, Charles J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We present a review of the different aspects associated with the interaction of successive CMEs in the corona and inner heliosphere, focusing on the initiation of series of CMEs, their interaction in the heliosphere, the particle acceleration associated with successive CMEs, and the effect of compound events on Earth's magnetosphere. The two main mechanisms resulting in the eruption of series of CMEs are sympathetic eruptions and homologous eruptions. The interaction of successive CMEs has been observed remotely in coronagraphs and heliospheric imagers, and inferred from in situ measurements. It is associated with magnetic reconnection, momentum exchange, the propagation of a fast magnetosonic shock through a magnetic ejecta and changes in CME expansion. The presence of a CME a few hours before a fast eruption is connected with higher fluxes of SEPs, while CME-CME interaction occurring in the corona is often associated with unusual radio bursts. Higher suprathermal population, enhanced turbulence and wave activity, stronger shocks, and shock-shock or shock-CME interaction have been proposed as physical mechanisms to explain these SEP events. When measured in situ, CME-CME interaction may be associated with relatively well organized multiple-magnetic cloud events, instances of shocks propagating through a previous magnetic ejecta or more complex ejecta. The compression of a CME by another and the propagation of a shock inside a magnetic ejecta can lead to extreme values of the southward magnetic field, sometimes associated with large values of the dynamic pressure. This can result in intense geomagnetic storms, but also trigger substorms and large earthward motions of the magnetopause, potentially associated with changes in the outer radiation belts. Future measurements by Solar Probe+ and Solar Orbiter may shed light on the evolution of CMEs as they interact.
description: 44pages, 12 Figures, accepted by Solar Physics
Comprehensive Timing and X-ray Spectral Analysis of GX 1+4
Creators: name: Serim, M. M.
name: Sahiner, S.
name: Cerri-Serim, D.
name: Inam, S. C.
name: Baykal, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present analysis of RXTE--PCA observations of GX 1+4 between March 3, 2001 and January 31, 2003 together with the CGRO--BATSE X-ray flux and frequency derivative time series between 1991 and 1999. From the timing analysis of RXTE-PCA observations, we are able to phase connect pulse arrival times of the source within two different time intervals and obtain corresponding timing solutions. Using these pulse arrival times, we contribute to long term pulse frequency history of the source. We look for episodic correlations and anti-correlations between torque and X-ray luminosity using CGRO--BATSE X-ray flux and frequency derivative time series and find that correlation state of GX 1+4 seems to change on $\sim$ 100-200 days long intervals. We estimate torque noise of the source and observe flickering noise ($f^{-1}$). We achieve to measure the longest observed timescale for a noise process among accretion powered X-ray pulsars by extending the noise estimate for a time scale ranging from 31 days to 44 years. Spectral analysis of individual RXTE-PCA observations indicates a significant correlation between iron line flux and unabsorbed X-ray flux. Pulse phase resolved spectra of the source indicate a broadening of iron line complex at the bin corresponding to the pulse minimum.
description: 20 pages, 9 figures, accepted for publication in MNRAS
Report on REGREEN Workshop in Ningbo, China
Creators: name: Hardiman, Richard
Publisher: name: Zenodo
Year: 2024

description: For the first time since the beginning of the REGREEN project, REGREENERs were able to meet our Chinese colleagues face-to-face at a joint International Workshop on “REGREEN: Nature-Based Solutions for Smart, Green and Healthy Urban Transitions in China and Europe” held 27-30 October 2023 hosted by the Institute of Urban Environment, Chinese Academy of Sciences (IUE-CAS) in Ningbo, China.

The workshop in Ningbo was a demonstration of bonding between European and Chinese counterparts after working together through virtual media and exchange of email texts and documents over 4 years. Technically and scientifically the same outcomes could have been achieved through virtual media. However, the Ningbo workshop demonstrated that face-to-face meetings are irreplaceable in order to gain mutual understanding of common scientific, social and cultural challenges between European and Chinese colleagues.

The success of the workshop was due to the excellent organisation by Professor Yao Yang XU (IUE-CAS), Professor Jun YANG, Tsinghua University, Beijing and Professor Bin ZHAO at Fudan University, Shanghai. It comprised field visits to NBS sites in Shanghai and Ningbo and a one-and-a-half-day workshop in Ningbo. There were 48 participants in all of which 11 were from REGREEN Europe.

The workshop featured academic exchanges through presentations and roundtable discussions on topics on: NBS governance and enablers, urban environmental challenges, NBS evidence dataset, ecosystem services mapping and model construction, business investment models of NBS, urban planning transformation, collaborative NBS design, education, and citizen science, all within the conceptual framework of reshaping and greening urban areas.
Sommerfeld-Enhanced $J$-Factors For Dwarf Spheroidal Galaxies
Creators: name: Boddy, Kimberly K.
name: Kumar, Jason
name: Strigari, Louis E.
name: Wang, Mei-Yu
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: For models in which dark matter annihilation is Sommerfeld-enhanced, the annihilation cross section increases at low relative velocities. Dwarf spheroidal galaxies (dSphs) have low characteristic dark matter particle velocities and are thus ideal candidates to study such models. In this paper we model the dark matter phase space of dSphs as isotropic and spherically-symmetric, and determine the $J$-factors for several of the most important targets for indirect dark matter searches. For Navarro-Frenk-White density profiles, we quantify the scatter in the $J$-factor arising from the astrophysical uncertainty in the dark matter potential. We show that, in Sommerfeld-enhanced models, the ordering of the most promising dSphs may be different relative to the standard case of velocity-independent cross sections. This result can have important implications for derived upper limits on the annihilation cross section, or on possible signals, from dSphs.
description: 19 pages, 7 figures, 1 table; v2: published version
Superconducting qubits on silicon substrates for quantum device integration
Creators: name: Keller, Andrew J.
name: Dieterle, Paul B.
name: Fang, Michael
name: Berger, Brett
name: Fink, Johannes M.
name: Painter, Oskar
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present the fabrication and characterization of transmon qubits formed from aluminum Josephson junctions on two different silicon-based substrates: (i) high-resistivity silicon (Si) and (ii) silicon-on-insulator (SOI). Key to the qubit fabrication process is the use of an anhydrous hydrofluoric vapor process which removes silicon surface oxides without attacking aluminum, and in the case of SOI substrates, selectively removes the lossy buried oxide underneath the qubit region. For qubits with a transition frequency of approximately $5$GHz we find qubit lifetimes and coherence times comparable to those attainable on sapphire substrates ($T_{1,\text{Si}} = 27μ$s, $T_{2,\text{Si}} = 6.6μ$s; $T_{1,\text{SOI}} = 3.5μ$s, $T_{2,\text{SOI}} = 2.2μ$s). This qubit fabrication process in principle permits co-fabrication of silicon photonic and mechanical elements, providing a route towards chip-scale integration of electro-opto-mechanical transducers for quantum networking of superconducting microwave quantum circuits.
description: 6 pages, 4 figures
ELIXIR's Impact Toolkit
Creators: name: De Ruyck, Kim
name: Melo, Ana M. P.
name: Stansberg, Christine
name: Balsyte, Erika
name: Alloza, Eva
name: Angelis, Jelena
name: Anton, Mihail
name: Barlow, Mary
name: Battistella, Diana
name: Ben-Avraham, Danny
name: Blomberg, Niklas
name: Bruno, Chiara
name: Chasapi, Anastasia
name: Cook, Martin
name: Dangles, Marie
name: De Freitas, Mariana
name: Delva, Emily
name: De Leo, Francesca
name: Farrell, Gavin
name: Ferk, Polonca
name: Francis, Rhys
name: Van Gelder, Celia
name: Griniece, Elina
name: Gurwitz, Kim
name: Harrison, Elaine
name: Hoffmann, Nils
name: Hooft, Rob
name: Jansen, Mascha
name: Knox, Catherine
name: Lauer, Katharina
name: Leskosek, Brane
name: Lindvall, Jessica
name: Maus, Irena
name: Milano, Annalisa
name: Ouzounis, Christos
name: Petryszak, Robert
name: Xènia Pérez Sitjà
name: Ruch, Patrick
name: Törnroos, Johanna
name: Zippy Tseng
name: Saenz, Angela
name: Schnitzer, Helena
name: Smith, Andrew
name: Sousoni, Despoina
name: Strachotova, Anna
name: Vergoulis, Thanasis
name: Witham, Rick
name: Wong, Nichola
name: Martin, Corinne
Publisher: name: F1000 Research Limited
Year: 2023

description: This Toolkit collates a range of impact-related materials, including training documents and materials, worked examples, factsheets, lists of indicators, key publications, case studies, and presentation slides. These have been created and/or brought together using a bottom-up approach that tries to reflect the varied needs of Nodes in ELIXIR member countries. The primary audiences of this Toolkit are those in ELIXIR (e.g. operators, developers and managers of bioinformatics resources) wishing to demonstrate and communicate the performance, impact, and ultimately public value of their research infrastructure, to their particular set of funders and stakeholders. Sibling research infrastructures in the life sciences and beyond may also find the Toolkit useful.
ИЧКИ ИШЛАР ОРГАНЛАРИ ХОДИМЛАРИНИ ИЖТИМОИЙ ҲИМОЯ ҚИЛИШ МЕХАНИЗМИНИ ТАКОМИЛЛАШТИРИШНИНГ ЎЗИГА ХОС ХУСУСИЯТЛАРИ
Creators: name: Раджапова, Лола
Publisher: name: Zenodo
Year: 2024

description: Ҳар қандай давлатда демократиянинг асосий белгиловчи мезони инсон ҳуқуқ ва эркинликларининг муҳофаза килинганлик даражасидир. Дарҳақиқат, ҳуқуқий демократик давлат қуришнинг асосий шарти инсон ҳуқуқ ва эркинликларини ҳимоя қилиш ҳамда жамиятда ҳар бир инсон ҳуқуқ ва эркинликлари кафолатланишининг ҳақиқий тизимини яратиш ҳисобланади.
The Spectral Periodicity of Spinon Continuum in Quantum Spin Ice
Creators: name: Chen, Gang
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Motivated by the rapid experimental progress of quantum spin ice materials, we study the dynamical properties of pyrochlore spin ice in the U(1) spin liquid phases. In particular, we focus on the spinon excitations that appear at high energies and show up as an excitation continuum in the dynamic spin structure factor. The keen connection between the crystal symmetry fractionalization of the spinons and the spectral periodicity of the spinon continuum is emphasized and explicitly demonstrated. When the spinon experiences a background $π$ flux and the spinon continuum exhibits an enhanced spectral periodicity with a folded Brillouin zone, this spectral property can then be used to detect the spin quantum number fractionalization and U(1) spin liquid. Our prediction can be immediately examined by inelastic neutron scattering experiments among quantum spin ice materials with Kramers' doublets. Further application to the non-Kramers' doublets is discussed.
description: 6 pages, 3 figures, 1 table, several corrections, to appear in PhysRevB
ELIXIR All Hands Dublin 2023 – Setting the stage for the ELIXIR 2024-28 Scientific Programme
Creators: name: Harrison, Elaine
name: Clarke, Zuzana
name: Balsyte, Erika
name: Maccallum, Peter
Publisher: name: F1000 Research Limited
Year: 2023

description: ELIXIR, the European infrastructure for life science data, held its 2023 annual meeting in Dublin. The meeting was the ninth and largest, attended by over 380 ELIXIR delegates in-person, over 180 online and 22 invited guests from Europe and further afield. The event marked a turning point in the infrastructure’s lifecycle, with the current five-year Scientific Programme ending in 2023 and a new Programme starting in 2024 (see Box 1). This short report summarises the event for those unable to attend, provides an aide-memoire for participants, and the appendix gathers together the rich resources presented over the three days.
Speed-of-light pulses in the massless nonlinear Dirac equation with a potential
Creators: name: Quintero, Niurka R.
name: Mertens, Franz G.
name: Cooper, Fred
name: Saxena, Avadh
name: Bishop, A. R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We consider the massless nonlinear Dirac (NLD) equation in $1+1$ dimension with scalar-scalar self-interaction $\frac{g^2}{2} (\barΨ Ψ)^2$ in the presence of three external electromagnetic potentials $V(x)$, a potential barrier, a constant potential, and a potential well. By solving numerically the NLD equation, we find that, for all three cases, after a short transit time, the initial pulse breaks into two pulses which are solutions of the massless linear Dirac equation traveling in opposite directions with the speed of light. During this splitting the charge and the energy are conserved, whereas the momentum is conserved when the solutions possess specific symmetries. For the case of the constant potential, we derive exact analytical solutions of the massless NLD equation that are also solutions of the massless linearized Dirac equation.
description: 11 pages, 7 figures
ДВИГАТЕЛЬНАЯ АКТИВНОСТЬ КАК ГЛАВНОЕ УСЛОВИЕ НОРМАЛЬНОГО РОСТА И РАЗВИТИЯ ОРГАНИЗМА
Creators: name: Файзиева, М.Ф.
name: Расулова, Н.Ф.
name: Мухамедова, Н.С.
Publisher: name: Zenodo
Year: 2024

description: Здоровье – наиболее важное богатство для каждого человека, однако и для всего общества. При встречах, с родными людьми мы желаем им крепкого здоровья, так как это - главное в жизни. Здоровье помогает нам выполнять наши задачи, удачно решать главные жизненные трудности, справляться с проблемами. Воспитывайте у деток потребность в движении! Еще известный педагог 17 века Ян Амос Каменский писал: «Чем больше малыш что-либо делает, бежит, играет, тем лучше он спит, тем проще варит его желудок, тем скорее вырастает, тем он делается сильнее физиологически и духовно».
SHARP - IV. An apparent flux ratio anomaly resolved by the edge-on disc in B0712+472
Creators: name: Hsueh, J. -W.
name: Oldham, L.
name: Spingola, C.
name: Vegetti, S.
name: Fassnacht, C. D.
name: Auger, M. W.
name: Koopmans, L. V. E.
name: McKean, J. P.
name: Lagattuta, D. J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Flux ratio anomalies in quasar lenses can be attributed to dark matter substructure surrounding the lensing galaxy and, thus, used to constrain the substructure mass fraction. Previous applications of this approach infer a substructure abundance that potentially in tension with the predictions of a $Λ$CDM cosmology. However, the assumption that all flux ratio anomalies are due to substructure is a strong one, and alternative explanations have not been fully investigated. Here, we use new high-resolution near-IR Keck~II adaptive optics imaging for the lens system CLASS B0712+472 to perform pixel-based lens modelling for this system and, in combination with new VLBA radio observations, show that the inclusion of the disc in the lens model can explain the flux ratio anomalies without the need for dark matter substructures. The projected disc mass comprises 16% of the total lensing mass within the Einstein radius and the total disc mass is $1.79 \times 10^{10} M_{sun}$. The case of B0712+472 adds to the evidence that not all flux ratio anomalies are due to dark subhaloes, and highlights the importance of taking the effects of baryonic structures more fully into account in order to obtain an accurate measure of the substructure mass fraction.
description: 9 pages, 5 figures, 5 tables. Accepted by MNRAS
Multi-Grid Detector for Neutron Spectroscopy: Results Obtained on Time-of-Flight Spectrometer CNCS
Creators: name: Anastasopoulos, M.
name: Bebb, R.
name: Berry, K.
name: Birch, J.
name: Bryś, T.
name: Buffet, J. -C.
name: Clergeau, J. -F.
name: Deen, P. P.
name: Ehlers, G.
name: van Esch, P.
name: Everett, S. M.
name: Guerard, B.
name: Hall-Wilton, R.
name: Herwig, K.
name: Hultman, L.
name: Höglund, C.
name: Iruretagoiena, I.
name: Issa, F.
name: Jensen, J.
name: Khaplanov, A.
name: Kirstein, O.
name: Lopez-Higuera, I.
name: Piscitelli, F.
name: Robinson, L.
name: Schmidt, S.
name: Stefanescu, I.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The Multi-Grid detector technology has evolved from the proof-of-principle and characterisation stages. Here we report on the performance of the Multi-Grid detector, the MG.CNCS prototype, which has been installed and tested at the Cold Neutron Chopper Spectrometer, CNCS at SNS. This has allowed a side-by-side comparison to the performance of $^3$He detectors on an operational instrument. The demonstrator has an active area of 0.2 m$^2$. It is specifically tailored to the specifications of CNCS. The detector was installed in June 2016 and has operated since then, collecting neutron scattering data in parallel to the He-3 detectors of CNCS. In this paper, we present a comprehensive analysis of this data, in particular on instrument energy resolution, rate capability, background and relative efficiency. Stability, gamma-ray and fast neutron sensitivity have also been investigated. The effect of scattering in the detector components has been measured and provides input to comparison for Monte Carlo simulations. All data is presented in comparison to that measured by the $^3$He detectors simultaneously, showing that all features recorded by one detector are also recorded by the other. The energy resolution matches closely. We find that the Multi-Grid is able to match the data collected by $^3$He, and see an indication of a considerable advantage in the count rate capability. Based on these results, we are confident that the Multi-Grid detector will be capable of producing high quality scientific data on chopper spectrometers utilising the unprecedented neutron flux of the ESS.
description: submitted to JINST
Prijave in praktične izkušnje iz ERC projektov
Creators: name: Križan, Peter
Publisher: name: Zenodo
Year: 2023

description: Predstavitev z naslovom Prijave in praktične izkušnje iz ERC projektov iz enodnevnega usposabljanja s področja EU centraliziranih projektov. Predavanje je bilo organizirano pod okriljem ZRS Koper v sklopu projekta KRPAN v sredo, 20. decembra 2023.
Prijave in praktične izkušnje iz ERC projektov
Creators: name: dr. Križan, Peter
Publisher: name: Zenodo
Year: 2023

description: Predstavitev z naslovom Prijave in praktične izkušnje iz ERC projektov iz enodnevnega usposabljanja s področja predstavitve in izvajanja centraliziranih EU projektov. Predavanje je bilo organizirano pod okriljem ZRS Koper v sklopu projekta KRPAN v sredo, 20. decembra 2023.

 

Dogodek je bil organiziran v okviru projekta KRPAN - Krepitev Raziskovalne Podpore in Aktivnosti za Napredek na evropskih raziskovalnih projektih, ki ga sofinancirata Republika Slovenija, Ministrstvo za visoko šolstvo, znanost in inovacije ter Evropska unija – NextGenerationEU.
Experimental realization of time-dependent phase-modulated continuous dynamical decoupling
Creators: name: Farfurnik, D.
name: Aharon, N.
name: Cohen, I.
name: Hovav, Y.
name: Retzker, A.
name: Bar-Gill, N.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The coherence times achieved with continuous dynamical decoupling techniques are often limited by fluctuations in the driving amplitude. In this work, we use time-dependent phase-modulated continuous driving to increase the robustness against such fluctuations in a dense ensemble of nitrogen-vacancy centers in diamond. Considering realistic experimental errors in the system, we identify the optimal modulation strength, and demonstrate an improvement of an order of magnitude in the spin-preservation of arbitrary states over conventional single continuous driving. The phase-modulated driving exhibits comparable results to previously examined amplitude-modulated techniques, and is expected to outperform them in experimental systems having higher phase accuracy. The proposed technique could open new avenues for quantum information processing and many body physics, in systems dominated by high frequency spin-bath noise, for which pulsed dynamical decoupling is less effective.
DNA-identification of the first Dutch Siberian northern shrike Lanius borealis sibericus from a toepad sample
Creators: name: De Knijff, P
name: Raa, Marije Te
Publisher: name: Zenodo
Year: 2022
Subjects: DNA
Shrike

description: This document with ZENODO URL https://doi.org/ 10.5281/zenodo.6982812 was prepared as supplementary information to the following article to appear in Dutch Birding: Siberische Noordelijke Klapekster bij Nuenen in november 1909; written by Justin J F J Jansen, Pepijn Kamminga, Martin Brandsma, Reuven Yosef & Peter de Knijff. Summary On 25 November 1909, a grey shrike Lanius was purchased by Rijksmuseum voor Natuurlijke Historie (now Naturalis Biodiversity Center) at Leiden, Zuid-Holland, Netherlands (skin RMNH.AVES1663). The bird, a first-winter female, was collected at Nuenen, Noord-Brabant, Netherlands. It was at the time identified as Great Grey Shrike L excubitor. The bird was recently re-identified as a Northern Shrike L borealis (L b borealis or L b sibericus). Here we describe all relevant technical aspects of the DNA-study that was performed in order to support this identification. For this we used a toe pad sample. We obtained a mitochondrial Cytochrome B fragment of 893 bp. which gave a 100% match with L b sibericus. This was the first record for the Netherlands, and chronologically the second for Europe.
Developing a Protocol for addressing gender-based violence in research and higher education institutions: UniSAFE guidelines
Creators: name: Madesi, Vasia
name: Polykarpou, Panagiota
name: Mergaert, Lut
name: Wuiame, Nathalie
Publisher: name: Zenodo
Year: 2023
Subjects: Gender-based violence
Research Performing Organisations
Universities
Toolkit
Awareness raising

description: This document is part of a toolkit developed in the framework of the UniSAFE Project “Gender-based violence and institutional responses: Building a knowledge base and operational tools to make universities and research organisations safe from gender-based violence”, available here: https://unisafe-toolkit.eu/home/
Developing a Protocol for addressing gender-based violence in research and higher education institutions: UniSAFE guidelines
Creators: name: Madesi, Vasia
name: Polykarpou, Panagiota
name: Mergaert, Lut
name: Wuiame, Nathalie
name: Linkova, Marcela
name: Andreska, Zuzana
Publisher: name: Zenodo
Year: 2023
Subjects: Gender-based violence
Research Performing Organisations
Universities
Toolkit
Awareness raising

description: This document is part of a toolkit developed in the framework of the UniSAFE Project “Gender-based violence and institutional responses: Building a knowledge base and operational tools to make universities and research organisations safe from gender-based violence”, available here: https://unisafe-toolkit.eu/home/
Shaping planetary nebulae with jets in inclined triple stellar systems
Creators: name: Akashi, Muhammad
name: Soker, Noam
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We conduct three-dimensional hydrodynamical simulations of two opposite jets launched obliquely to the orbital plane around an asymptotic giant branch (AGB) star and within its dense wind, and demonstrate the formation of a `messy' planetary nebula (PN), namely, a PN lacking any type of symmetry (highly irregular). In building the initial conditions we assume that a tight binary system orbits the AGB star, and that the orbital plane of the tight binary system is inclined to the orbital plane of the binary system and the AGB star (the triple system plane). We further assume that the accreted mass on to the tight binary system forms an accretion disk around one of the stars, and that the plane of the disk is tilted to the orbital plane of the triple system. The highly asymmetrical and filamentary structure that we obtain support the notion that messy PNe might be shaped by triple stellar systems.
description: Accepted to Monthly Notices of the Royal Astronomical Society (MNRAS)
A Reappraisal on Dark Matter Co-annihilating with a Top/Bottom Partner
Creators: name: Keung, Wai-Yee
name: Low, Ian
name: Zhang, Yue
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We revisit the calculation of relic density of dark matter particles co-annihilating with a top or bottom partner, by properly including the QCD bound-states (onia) effects of the colored partners, as well as the relevant electroweak processes which become important in the low mass region. We carefully set up the complete framework that incorporates the relevant contributions and investigate their effects on the cosmologically preferred mass spectrum, which turn out to be comparable in size to those coming from the Sommerfeld enhancement. We apply the calculation to three scenarios: bino-stop and bino-sbottom co-annihilations in supersymmetry, and a vector dark matter co-annihilating with a fermionic top partner. In addition, we confront our analysis of the relic abundance with recent direct detection experiments and collider searches at the LHC, which have important implications in the bino-stop and bino-sbottom scenarios. In particular, in the bino-stop case recent LHC limits have excluded regions of parameter with a direct detection rate that is above the neutrino floor.
description: 22 pages, 7 figures. v2: updated with the 2017 Moriond results; included non-abelian interaction contribution to bound state formation; conclusion not changed; more references added
To be or not to be constructive, that is not the question
Creators: name: Sanders, Sam
Publisher: name: arXiv
Year: 2017
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: In the early twentieth century, L.E.J. Brouwer pioneered a new philosophy of mathematics, called intuitionism. Intuitionism was revolutionary in many respects but stands out -mathematically speaking- for its challenge of Hilbert's formalist philosophy of mathematics and rejection of the law of excluded middle from the 'classical' logic used in mainstream mathematics. Out of intuitionism grew intuitionistic logic and the associated Brouwer-Heyting-Kolmogorov interpretation by which 'there exists x' intuitively means 'an algorithm to compute x is given'. A number of schools of constructive mathematics were developed, inspired by Brouwer's intuitionism and invariably based on intuitionistic logic, but with varying interpretations of what constitutes an algorithm. This paper deals with the dichotomy between constructive and non-constructive mathematics, or rather the absence of such an 'excluded middle'. In particular, we challenge the 'binary' view that mathematics is either constructive or not. To this end, we identify a part of classical mathematics, namely classical Nonstandard Analysis, and show it inhabits the twilight-zone between the constructive and non-constructive. Intuitively, the predicate 'x is standard' typical of Nonstandard Analysis can be interpreted as 'x is computable', giving rise to computable (and sometimes constructive) mathematics obtained directly from classical Nonstandard Analysis. Our results formalise Osswald's longstanding conjecture that classical Nonstandard Analysis is locally constructive. Finally, an alternative explanation of our results is provided by Brouwer's thesis that logic depends upon mathematics.
description: 70 pages; update of version published in 'Indagationes Mathematicae'; to appear as a chapter of the Brouwer volume 'L.E.J. Brouwer, fifty years later'
Brownian Dynamics of Confined Suspensions of Active Microrollers
Creators: name: Usabiaga, Florencio Balboa
name: Delmotte, Blaise
name: Donev, Aleksandar
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We develop efficient numerical methods for performing many-body Brownian dynamics simulations of a recently-observed fingering instability in an active suspension of colloidal rollers sedimented above a wall [M. Driscoll, B. Delmotte, M. Youssef, S. Sacanna, A. Donev and P. Chaikin, Nature Physics, 2016, doi:10.1038/nphys3970]. We present a stochastic Adams-Bashforth integrator for the equations of Brownian dynamics, which has the same cost as but is more accurate than the widely-used Euler-Maruyama scheme, and uses a random finite difference to capture the stochastic drift proportional to the divergence of the configuration-dependent mobility matrix. We generate the Brownian increments using a Krylov method, and show that for particles confined to remain in the vicinity of a no-slip wall by gravity or active flows the number of iterations is independent of the number of particles. Our numerical experiments with active rollers show that the thermal fluctuations set the characteristic height of the colloids above the wall, both in the initial condition and the subsequent evolution dominated by active flows. The characteristic height in turn controls the timescale and wavelength for the development of the fingering instability.
description: Revised and resubmitted to J. Chem. Phys
Taxonomy structure of Agapanthia (Epoptes) asphodeli (Latreille, 1804) (Coleoptera, Cerambycidae)
Creators: name: Lazarev, M.A.
Publisher: name: Гуманитарное пространство
Year: 2023
Subjects: Coleoptera
Cerambycidae
taxonomy
zoogeography
new status
new subspecies
new synonyms
name restored

description: The taxonomy of the species is revised; 8 subspecies are accepted: Agapanthia (Epoptes) a. asphodeli (Latreille, 1804) type locality France, Bordeaux environs; A. (E.) a. lopadusae Rapuzzi & Sparacio, 2017, stat. n. type locality Italy, Sicilian Channel, Lampedusa Island; A. (E.) a. renatae Steiner & Schmid, 2013, stat. n. type locality Greece, Peloponnese, Arcadia, between Karitena and Kastro; A. (E.) a. cretica Bernhauer, 1978, stat. n. type locality Crete, Mount Ida, Anogia; A. (E.) a. kastamonica ssp. n. type locality Turkey, Kastamonu province, Yaralıgöz Dağı; A. (E.) a. nicosiensis Pic, 1927 is restored to its original rank type locality Cyprus; A. (E.) a. zappii Sama, 1987, stat. n. type locality Algeria (Batna), Telmet canyon (Aures Mountains), 1700 m; A. (E.) a. fadli Sama & Rapuzzi, 2006, stat. n. type locality “14 km east of Burg al ‘Arab (west of Alexandria), 30°58’N 29°40’E”. One subspecies is described as new and the species rank of five names is downgraded to subspecies level. Two new synonyms are proposed: A. (E.) renatae Steiner & Schmid, 2013 = A. (E.) asphodeli balcanica Sláma, 2019, syn. n.; A. (E.) cretica Bernhauer, 1978 = A. (E.) probsti Holzschuh, 1984, syn. n. The holotype of A. reyi Mulsant & Godart, 1870 is depicted for the first time, so the synonymies by Sama (1979) A. (E.) asphodeli = A. (E.) reyi Mulsant & Godart, 1870 is proved.
А new species of the genus Pidonia Mulsant, 1863 (Coleoptera, Cerambycidae) from the Russian Far East
Creators: name: Danilevsky, M.L.
Publisher: name: Гуманитарное пространство
Year: 2023
Subjects: Coleoptera
Cerambycidae
Lamiinae
Pidonia (Cryptopidonia)
taxonomy
new species
Far East Russia

description: Pidonia (Cryptopidonia) petrovi sp. n. similar to Japanese P. (C.) hylophila Kuboki, 1977 is described from the Russian Far East.
Radiogenic Neutron Yield Calculations for Low-Background Experiments
Creators: name: Westerdale, S.
name: Meyers, P. D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Nuclear recoil backgrounds are one of the most dangerous backgrounds for many dark matter experiments. A primary source of nuclear recoils is radiogenic neutrons produced in the detector material itself. These neutrons result from fission and $(α,n)$ reactions originating from uranium and thorium contamination. In this paper, we discuss neutron yields from these sources. We compile a list of $(α,n)$ yields for many materials common in low-background detectors, calculated using NeuCBOT, a new tool introduced in this paper, available at https://github.com/shawest/neucbot. These calculations are compared to computations made using data compilations and SOURCES-4A
Open Science in Lattice Gauge Theory community
Creators: name: Athenodorou, Andreas
name: Bennett, Ed
name: Lenz, Julian
name: Papadopoulou, Elli
Publisher: name: Zenodo
Year: 2022
Subjects: Open Science, FAIR, Data Management Plan, Lattice Gauge Theories

description: Talk presented at the the 39th International Symposium on Lattice Field Theory by Andreas Athenodorou, based on the "Survey on lattice data analysis, presentation, and curation practices", the results of which can be found in https://doi.org/10.5281/zenodo.6980070 Abstract: Open science aims to make scientific research processes, tools and results accessible to all scientific communities, creating trust in science and enabling digital competences to be realized in research, leading to increased innovation. It provides standard and transparent pathways to conducting research and fosters best practices for collecting, analysing, preserving, sharing and reusing data, software, workflows and other outputs through collaborative networks. Open Science appears to becoming the norm with its applications spanning throughout the whole research cycle of a project. The importance of making Open Science a reality is reflected in the policy and implementation actions of the European Commission incorporated in research and innovation funding programmes (FP7, Horizon 2020, Horizon Europe) and the development of the European Open Science Cloud (EOSC) as it improves the quality, efficiency and responsiveness of research. EOSC will enable researchers across disciplines and countries to store, curate and share data under a common policy framework with rules of participation and pre-defined set of technical specifications that are expected to help shape the “Internet of FAIR data and services” in Europe. In this talk we will present the basic Open Science principles explaining briefly best practices for materialising open science. Subsequently, we will present the results of the landscaping survey of Open Science in the Lattice Gauge Theories community (https://latticesurvey.hpcf.cyi.ac.cy/index.php/157898). Finally, we will provide directions in which the LGT community could move in order to enhance Openness and FAIRness (Finability, Accessibility, Interoperability, Reusability) in Science.