cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The origin of exosomal miR-1246 in human cancer cells
Creators: name: Xu, Yi-Fan
name: Hannafon, Bethany N.
name: Ujjwol Khatri
name: Gin, Amy
name: Ding, Wei-Qun
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Hematology
subject: 60506 Virology

description: miR-1246 is considered an oncomiR in various cancer types. However, the origin and biogenesis of miR-1246 remain controversial which often leads to misinterpretation of its detection and biological function, and inevitably masking its mechanisms of action. Using next generation small RNA sequencing, CRISPR-Cas9 knockout, siRNA knockdown and the poly-A tailing SYBR qRT-PCR, we examined the biogenesis of exosomal miR-1246 in human cancer cell model systems. We found that miR-1246 is highly enriched in exosomes derived from human cancer cells and that it originates from RNU2-1, a small nuclear RNA and essential component of the U2 complex of the spliceosome. Knockdown of Drosha and Dicer did not reduce exosomal miR-1246 levels, indicating that exosomal miR-1246 is generated in a Drosha- and Dicer-independent manner. Direct digestion of cellular lysate by RNase A and knockdown of the RNU2-1 binding protein SmB/B’ demonstrated that exosomal miR-1246 is a RNU2-1 degradation product. Furthermore, the GCAG motif present in the RUN2-1 transcript was shown to mediate miR-1246 enrichment in cancer exosomes. We conclude that exosome miR-1246 is derived from RNU2-1 degradation through a non-canonical microRNA biogenesis process. These findings reveal the origin of an oncomiR in human cancer cells, providing guidance in understanding miR-1246 detection and biological function. Abbreviations: CRISPR, Clustered Regularly Interspaced Short Palindromic Repeats; miRNA, microRNA; PDAC, pancreatic ductal adenocarcinoma; RNU2-1, U2 small nuclear RNA; RT-PCR, Reverse transcription polymerase chain reaction; sgRNA, single-guide RNA.
Onset of magnetism in B2 transition metals aluminides
Creators: name: Kulikov, N. I.
name: Postnikov, A. V.
name: Borstel, G.
name: Braun, J.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ab initio calculation results for the electronic structure of disordered bcc Fe(x)Al(1-x) (0.40.5.
description: 11 pages with 9 embedded postscript figures, to be published in Phys.Rev.B
ТРОМБОЗ СОСУДИСТОГО ДОСТУПА И ОСОБЕННОСТИ ЦЕНТРАЛЬНОЙ ГЕМОДИНАМИКИ
Creators: name: Даминов, Б.Т
name: Хатамов, Э.А
Publisher: name: Zenodo
Year: 2024

description: АВ фистула – это хирургически сформированное сообщение между поверхностной веной и артерией, чаще на руке, (75% всех фистул – на предплечье), что приводит к повышению кровотока через вену, что делает ее доступной для пункции с целью проведения ГД. АВ фистула отличается длительностью подготовки – временем, которое должно пройти от момента формирования АВ фистулы до возможности ее использования – т.к. «созреванием» фистулы, однако имеет меньший риск инфицирования и тромбоза [5,6].

 АВ фистула представляет собой прямое сообщение между артериальным сосудом с высоким давлением и веной – сосудом с низким давлением и высокой степенью податливости и дренируемая непосредственно в правое предсердие. Гемодинамика и функционирование фистулы зависит от функционального круга кровообращения: левое сердце-артериальная система-фистула-отводящая вена-правое сердце. в области фистулы происходит резкое падение гидростатического давления, что приводит к возникновению турбуленции потока крови [7,8]. Кровоток через фистулу резко увеличивается непосредственно после формирования фистулы и продолжает увеличиваться в течение нескольких недель, что связано с увеличением сердечного выброса и артериальной дилатации [9]. Если АВ фистула не позволяет проводить ГД она считается нефункционирующей (недостаточность СД). По разным данным она наблюдается от 25 до 80% случаев в год). Клинически причиной недостаточности АВ фистулы служит тромбоз или нарушение созревания (обычно в связи со стенозом).
Shubnikov-de Haas oscillations in optical conductivity of monolayer MoSe$_2$
Creators: name: Smoleński, T.
name: Cotlet, O.
name: Popert, A.
name: Back, P.
name: Shimazaki, Y.
name: Knüppel, P.
name: Dietler, N.
name: Taniguchi, T.
name: Watanabe, K.
name: Kroner, M.
name: Imamoglu, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report polarization-resolved resonant reflection spectroscopy of a charge-tunable atomically-thin valley semiconductor hosting tightly bound excitons coupled to a dilute system of fully spin- and valley-polarized holes in the presence of a strong magnetic field. We find that exciton-hole interactions manifest themselves in hole-density dependent, Shubnikov-de Haas-like oscillations in the energy and line broadening of the excitonic resonances. These oscillations are evidenced to be precisely correlated with the occupation of Landau levels, thus demonstrating that strong interactions between the excitons and Landau-quantized itinerant carriers enable optical investigation of quantum-Hall physics in transition metal dichalcogenides.
description: Main text: 5 pages, 5 figures; Supplemental Material: 13 pages, 6 figures
THE IMPORTANCE OF INFORMATION SYSTEMS AND TECHNOLOGIES IN THE CONTEXT OF DIGITALIZATION
Creators: name: Xurramov, Azizbek
Publisher: name: Zenodo
Year: 2024

description: The rapid advancement of digitalization has transformed industries, economies, and societies worldwide. At the core of this transformation lie information systems (IS) and technologies, which enable efficient data management, decision-making, and innovation. This paper explores the critical role of IS and technologies in driving digitalization, highlighting their impact on organizational processes, competitiveness, and societal progress. We adopt the IMRAD structure to systematically present the research, focusing on the importance of IS in fostering sustainable digital ecosystems.
Spherical sampling methods for the calculation of metamer mismatch volumes
Creators: name: Mackiewicz, Michal
name: Rivertz, Hans Jakob
name: Finlayson, Graham D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Geometry (cs.CG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences
subject: 68U99

description: In this paper, we propose two methods of calculating theoretically maximal metamer mismatch volumes. Unlike prior art techniques, our methods do not make any assumptions on the shape of spectra on the boundary of the mismatch volumes. Both methods utilize a spherical sampling approach, but they calculate mismatch volumes in two different ways. The first method uses a linear programming optimization, while the second is a computational geometry approach based on half-space intersection. We show that under certain conditions the theoretically maximal metamer mismatch volume is significantly larger than the one approximated using a prior art method.
description: One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of this paper are prohibited. Optical Society of America
Rhizophora racemosa G. Mey.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Rhizophoraceae
Rhizophora
Rhizophora racemosa

description: [1431] Rhizophora racemosa G.Mey.
 Prim. Fl. Esseq. 185 [Nov. 1818] (Meyer 1818). — Rhizophora mangle var. racemos a (G.Mey.) Engl., Fl. Bras. [Martius] 12 (2): 427 [1 Sep. 1876] (Engler 1876).
NOTE. — A species restricted to mangrove forests.
VERNACULAR NAMES. — Pa: kwatri • Ka: konopo, kunapo • Cr: pativyé-janm, pativyé-rouj • Fr: palétuvier rouge • Br: manguevermelho.
 HERBARIUM DATA (FG). — 20 collections at CAY. Sel. exs.: M.-F. Prévost 4684.
SIZE. — Up to 15 m tall (Steyermark 2004).
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 649, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Antiferromagnetic Alignment and Relaxation Rate of Gd Spins in the High Temperature Superconductor GdBa_2Cu_3O_(7-delta)
Creators: name: Ormeno, R. J.
name: Gough, C. E.
name: Yang, G.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The complex surface impedance of a number of GdBa$_2$Cu$_3$O$_{7-δ}$ single crystals has been measured at 10, 15 and 21 GHz using a cavity perturbation technique. At low temperatures a marked increase in the effective penetration depth and surface resistance is observed associated with the paramagnetic and antiferromagnetic alignment of the Gd spins. The effective penetration depth has a sharp change in slope at the Néel temperature, $T_N$, and the surface resistance peaks at a frequency dependent temperature below 3K. The observed temperature and frequency dependence can be described by a model which assumes a negligibly small interaction between the Gd spins and the electrons in the superconducting state, with a frequency dependent magnetic susceptibility and a Gd spin relaxation time $τ_s $ being a strong function of temperature. Above $T_N$, $τ_s$ has a component varying as $1 / (T - T_N)$, while below $T_N$ it increases $\sim T^{-5}$.
description: 4 Pages, 4 Figures. Submitted to Phys. Rev. B
Direct Single Molecule Imaging of Enhanced Enzyme Diffusion
Creators: name: Xu, Mengqi
name: Valdez, Lyanne
name: Sen, Aysuman
name: Ross, Jennifer L.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Recent experimental results have shown that active enzymes can diffuse faster when they are in the presence of their substrates. Fluorescence correlation spectroscopy (FCS), which relies on analyzing the fluctuations in fluorescence intensity signal to measure the diffusion coefficient of particles, has typically been employed in most of the prior studies. However, flaws in the FCS method, due to its high sensitivity to the environment, have recently been evaluated, calling the prior diffusion results into question. It behooves us to adopt complimentary and direct methods to measure the mobility of enzymes in solution. Herein, we use a novel technique of direct single-molecule imaging to observe the diffusion of single enzymes. This technique is less sensitive to intensity fluctuations and gives the diffusion coefficient directly based on the trajectory of the enzymes. Our measurements recapitulate that enzyme diffusion is enhanced in the presence of its substrate and find that the relative increase in diffusion of a single enzyme is even higher than those previously reported using FCS. We also use this complementary method to test if the total enzyme concentration affects the relative increase in diffusion and if enzyme oligomerization state changes during catalytic turnover. We find that the diffusion increase is independent of the total background concentration of enzyme and the catalysis of substrate does not change the oligomerization state of enzymes.
Thermoelectric Transport Properties in Disordered Systems Near the Anderson Transition
Creators: name: Villagonzalo, C.
name: Roemer, R. A.
name: Schreiber, M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the thermoelectric transport properties in the three-dimensional Anderson model of localization near the metal-insulator transition [MIT]. In particular, we investigate the dependence of the thermoelectric power S, the thermal conductivity K, and the Lorenz number L_0 on temperature T. We first calculate the T dependence of the chemical potential from the number density of electrons at the MIT using averaged density of state obtained by diagonalization. Without any additional approximation, we determine from the chemical potential the behavior of S, K and L_0 at low T as the MIT is approached. We find that the d.c. conductivity and K decrease to zero at the MIT as T -> 0 and show that S does not diverge. Both S and L_0 become temperature independent at the MIT and depend only on the critical behavior of the conductivity.
description: 11 pages, 10 eps figures, coded with the EPJ macro package, submitted to EPJ B
Prunus myrtifolia Urb.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Rosales
Rosaceae
Prunus
Prunus myrtifolia

description: [1433] Prunus myrtifolia (L.) Urb.
(Fig. 48D)
 Bot. Jahrb. Syst. 52 (4-5): 320 [3 Aug. 1915] (Urban 1915). — Celastrus myrtifolius L., Sp. Pl. 1: 196 [1 May 1753] (Linnaeus 1753). — Lauro-cerasu s myrtifoli a (L.) Britton, N. Amer. Trees 510 [9 May 1908] (Britton 1908), “ Laurocerasus ”.
 Prunus sphaerocarpa Sw., Prodr. [Swartz] 80 [20 Jun.-29 July 1788] (Swartz 1788).
 Prunus tikalana Lundell, Wrightia 4 (2): 88 [31 Dec. 1968] (Lundell 1968).
VERNACULAR NAMES. — Pa: kunau • Ka: okoipyo • Wp: kunawalu’ɨ • Cr: bwa-noyo • Br: marmelo-bravo, virarú.
 HERBARIUM DATA (FG). — 19 collections at CAY. Sel. exs.: J.-J. de Granville et al. 10765.
INVENTORY DATA (FG). — 7 trees in 6 plots; Fmax <1 %; dbhinv = 48.1 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 650, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
The Performance of the Italian GDP Between 2014 and 2023
Creators: name: Leogrande, Angelo
Publisher: name: Zenodo
Year: 2025

description: ISTAT calculates the value of Italy’s Gross Domestic Product (GDP) at current prices. The data refer to the period between 2014 and 2023. The analysis of Italy’s GDP from 2014 to 2023 provides an interesting overview of the country's economic health, highlighting an overall positive trend in absolute terms, albeit with significant fluctuations. During this decade, Italy’s GDP at market prices grew from €1.743 trillion in 2014 to €1.917 trillion in 2023, demonstrating an underlying economic expansion. However, this growth was not linear, as it was influenced by various internal and external factors, notably the COVID-19 pandemic, which had a profound impact on the global economy and Italy in particular.
Frequency-Dependent Shot Noise as a Probe of Electron-Electron Interaction in Mesoscopic Diffusive Contacts
Creators: name: Nagaev, K. E.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The frequency-dependent shot noise in long and narrow mesoscopic diffusive contacts is numerically calculated. The case of arbitrarily strong electron-electron scattering and zero temperature of electrodes is considered. For all voltages, the noise increases with frequency and tends to finite values. These limiting values are larger than the Poissonian noise and increase nearly as voltage to power 4/3. This allows one to experimentally determine the parameters of electron-electron interaction.
description: 3 pages, RevTeX, 3 eps figures
New Analysis of Neutron Star Constraints on Asymmetric Dark Matter
Creators: name: Garani, Raghuveer
name: Genolini, Yoann
name: Hambye, Thomas
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Due to their extreme density and low temperature, neutron stars (NS) are efficient probes to unveil interactions between standard model and dark matter (DM) particles. From elastic scatterings on NS material, DM can get gravitationally trapped by the star. The cooling of DM through further collisions may lead to the formation of a dense core which could collapse into a black hole, thus destroying the whole NS. From the observation of old NS, such a scenario leads to very stringent constraints on the parameter space of asymmetric DM. In this work we reexamine this possibility in detail. This includes: (a) a new detailed determination of the number of DM particles captured, properly taking into account the fact that neutrons form a highly degenerate Fermi material; (b) the determination of the time evolution of the DM density and energy profiles inside the NS, which allows us to understand how, as a function of time, DM thermalizes with NS material; (c) the determination of the corresponding constraints which hold on the DM-neutron cross section, including for the case where a large fraction of DM particles have not thermalized; (d) the first determination of the stringent constraints which also hold in a similar way on the DM-muon cross section, particularly relevant for leptophilic DM models; and (e) the use of realistic NS equations of state in determining these constraints.
description: 42 pages, 17 figures
Nonassociative Star Product Deformations for D-brane Worldvolumes in Curved Backgrounds
Creators: name: Cornalba, Lorenzo
name: Schiappa, Ricardo
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We investigate the deformation of D-brane world-volumes in curved backgrounds. We calculate the leading corrections to the boundary conformal field theory involving the background fields, and in particular we study the correlation functions of the resulting system. This allows us to obtain the world-volume deformation, identifying the open string metric and the noncommutative deformation parameter. The picture that unfolds is the following: when the gauge invariant combination ω= B + F is constant one obtains the standard Moyal deformation of the brane world-volume. Similarly, when dω= 0 one obtains the noncommutative Kontsevich deformation, physically corresponding to a curved brane in a flat background. When the background is curved, H = dω\not= 0, we find that the relevant algebraic structure is still based on the Kontsevich expansion, which now defines a nonassociative star product with an A_\infty homotopy associative algebraic structure. We then recover, within this formalism, some known results of Matrix theory in curved backgrounds. In particular, we show how the effective action obtained in this framework describes, as expected, the dielectric effect of D-branes. The polarized branes are interpreted as a soliton, associated to the condensation of the brane gauge field.
description: Latex, 50 pages; v2: added 2 references and corrected typos; v3: new section on the homotopy associative algebraic structure, final version for CMP
Alibertia latifolia K. Schum.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Rubiaceae
Alibertia
Alibertia latifolia

description: [1435] Alibertia latifolia (Benth.) K.Schum.
 Fl. Bras.[Martius] 6 (6): 386 [15 June 1889] (Schumann 1889). — Cordiera latifolia Benth., J. Bot. [Hooker] 3: 221 (Bentham 1841).
 Alibertia oligantha K.Schum., Fl. Bras. [Martius] 6 (6): 385 [15 June 1889] (Schumann 1889). — Cordiera oligantha (K.Schum.) Kuntze, Revis. Gen. Pl. 1: 279 [5 Nov. 1891] (Kuntze 1891).
 Alibertia latifolia var. parvifolia K.Schum., Fl. Bras. [Martius] 6 (6): 386 [15 June 1889] (Schumann 1889).
 Alibertia granulosa Rusby, Descr. S. Amer. Pl. 133 [20 Dec. 1920] (Rusby 1920).
 Alibertia latifolia var. pargueniana Steyerm., Mem. New York Bot. Gard. 12 (3): 225 (Steyermark 1965).
VERNACULAR NAMES. — Pa: tukuyuy.
 HERBARIUM DATA (FG). — A single collection, P.Grenand 1808, 12 m.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 650, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Generating Synthetic Data for Real World Detection of DoS Attacks in the IoT
Creators: name: Arnaboldi, Luca
name: Morisset, Charles
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Denial of service attacks are especially pertinent to the internet of things as devices have less computing power, memory and security mechanisms to defend against them. The task of mitigating these attacks must therefore be redirected from the device onto a network monitor. Network intrusion detection systems can be used as an effective and efficient technique in internet of things systems to offload computation from the devices and detect denial of service attacks before they can cause harm. However the solution of implementing a network intrusion detection system for internet of things networks is not without challenges due to the variability of these systems and specifically the difficulty in collecting data. We propose a model-hybrid approach to model the scale of the internet of things system and effectively train network intrusion detection systems. Through bespoke datasets generated by the model, the IDS is able to predict a wide spectrum of real-world attacks, and as demonstrated by an experiment construct more predictive datasets at a fraction of the time of other more standard techniques.
description: 16 pages
A low-frequency view of mixed-morphology supernova remnant VRO 42.05.01, and its neighbourhood
Creators: name: Arias, M.
name: Vink, J.
name: Iacobelli, M.
name: Domcek, V.
name: Haverkorn, M.
name: Oonk, J. B. R.
name: Polderman, I.
name: Reich, W.
name: White, G. J.
name: Zhou, P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Mixed-morphology supernova remnants (MM SNRs) are a mysterious class of objects that display thermal X-ray emission within their radio shell. They are an older class of SNRs, and as such are profoundly affected by the environment into which they evolve. VRO 42.05.01 is a MM SNR of puzzling morphology in the direction of the Galactic anticentre. Low-frequency radio observations of supernova remnants are sensitive to synchrotron electrons accelerated in the shock front. We aim to compare the low-frequency emission to higher frequency observations to understand the environmental and shock acceleration conditions that have given rise to the observed properties of this source. We present a LOFAR High Band Antenna map centred at 143 MHz of the region of the Galactic plane centred at $l = 166^\rm{o}, b = 3.5^\rm{o}$ at 143 MHz, with a resolution of 148'' and an rms noise of 4.4 mJy bm$^{-1}$ . Our map is sensitive to scales as large as $6^\rm{o}$. We compared the LOw Frequency ARay (LOFAR) observations to archival higher frequency radio, infrared, and optical data to study the emission properties of the source in different spectral regimes. We did this both for the SNR and for OA 184, an H II region within our field of view. We find that the radio spectral index of VRO 42.05.01 increases at low radio frequencies; i.e. the LOFAR flux is higher than expected from the measured spectral index value at higher radio frequencies. This observed curvature in the low-frequency end of the radio spectrum occurs primarily in the brightest regions of the source, while the fainter regions present a roughly constant power-law behaviour between 143 MHz and 2695 MHz. We favour an explanation for this steepening whereby radiative shocks have high compression ratios and electrons of different energies probe different length scales across the shocks, therefore sampling regions of different compression ratios.
description: Accepted in A&A
Semiclassical time evolution of the density matrix and tunneling
Creators: name: Ankerhold, Joachim
name: Grabert, Hermann
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The time dependent density matrix of a system with potential barrier is studied using path integrals. The characterization of the initial state, which is assumed to be restricted to one side of the barrier, and the time evolution of the density matrix lead to a three-fold path integral which is evaluated in the semiclassical limit. The semiclassical trajectories are found to move in the complex coordinate plane and barrier penetration only arises due to fluctuations. Both the form of the semiclassical paths and the relevant fluctuations change significantly as a function of temperature. The semiclassical analysis leads to a detailed picture of barrier penetration in the real time domain and the changeover from thermal activation to quantum tunneling. Deep tunneling is associated with quasi-zero modes in the fluctuation spectrum about the semiclassical orbits in the long time limit. The connection between this real time description of tunneling and the standard imaginary time instanton approach is established. Specific results are given for a double well potential and an Eckart barrier.
description: 27 pages, 8 figures, to be published in Phys. Rev. E
Orthogonality constraints and entropy in the SO(5)-Theory of HighT_c-Superconductivity
Creators: name: Wegner, Franz J.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: S.C. Zhang has put forward the idea that high-temperature-superconductors can be described in the framework of an SO(5)-symmetric theory in which the three components of the antiferromagnetic order-parameter and the two components of the two-particle condensate form a five-component order-parameter with SO(5) symmetry. Interactions small in comparison to this strong interaction introduce anisotropies into the SO(5)-space and determine whether it is favorable for the system to be superconducting or antiferromagnetic. Here the view is expressed that Zhang's derivation of the effective interaction V_{eff} based on his Hamiltonian H_a is not correct. However, the orthogonality constraints introduced several pages after this 'derivation' give the key to an effective interaction very similar to that given by Zhang. It is shown that the orthogonality constraints are not rigorous constraints, but they maximize the entropy at finite temperature. If the interaction drives the ground-state to the largest possible eigenvalues of the operators under consideration (antiferromagnetic ordering, superconducting condensate, etc.), then the orthogonality constraints are obeyed by the ground-state, too.
description: 10 pages, no figures
Theory of Magnetism-Driven Negative Thermal Expansion in Inverse Perovskite Antiferromagnets
Creators: name: Kobayashi, Masaya
name: Mochizuki, Masahito
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetism-induced negative thermal expansion (NTE) observed in inverse perovskite antiferromagnets Mn3AN (A=Zn, Ga, etc.) is theoretically studied by a classical spin model with competing bond-length-dependent exchange interactions. We numerically reproduce the crystal-volume expansion upon cooling triggered by a non-coplanar antiferromagnetic order and show that the expansion occurs so as to maximize an energy gain of the nearest-neighbor antiferromagnetic interactions. This mechanism is not specific to inverse perovskite magnets and might also be expected in magnets with other crystal structures. We propose other candidate crystal structures that might exhibit NTE through this mechanism.
description: 6 pages, 5 figures
Energy bounds for the spinless Salpeter equation
Creators: name: Hall, Richard L.
name: Lucha, Wolfgang
name: Schoberl, F. F.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the spectrum of the spinless-Salpeter Hamiltonian H = β\sqrt{m^2 + p^2} + V(r), where V(r) is an attractive central potential in three dimensions. If V(r) is a convex transformation of the Coulomb potential -1/r and a concave transformation of the harmonic-oscillator potential r^2, then upper and lower bounds on the discrete eigenvalues of H can be constructed, which may all be expressed in the form E = min_{r>0} [ β\sqrt{m^2 + P^2/r^2} + V(r) ] for suitable values of P here provided. At the critical point the relative growth to the Coulomb potential h(r)=-1/r must be bounded by dV/dh < 2β/π.
description: 11 pages, 1 figure
X-ray emission from massive stars: lessons learned and remaining mysteries
Creators: name: Rauw, Gregor
Publisher: name: Zenodo
Year: 2021
Subjects: Stars
X-ray emission
gamma Cas stars

description: Nearly all types of massive stars are known to display X-ray emission at some level. Tremendous insight into this phenomenon has been gained thanks to the sensitivity of the current generation of X-ray satellites and X-ray observations are nowadays an integral part of multi-wavelength studies of massive stars and their stellar winds. In this contribution, we review the overall picture and highlight a few recent results related to the temporal modulation of the X-ray emission of single massive stars, the orbital modulation of the emission due to colliding winds in massive binary systems, and the properties of the enigmatic gamma Cas stars, Be stars that display a very hard and strong X-ray emission.
Frequency-dependent (ac) Conduction in Disordered Composites: a Percolative Study
Creators: name: Sen, Asok K.
name: Gupta, Abhijit Kar
Publisher: name: arXiv
Year: 1998
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In a recent paper [Phys. Rev. B{\bf57}, 3375 (1998)], we examined in detail the nonlinear (electrical) dc response of a random resistor cum tunneling bond network ($RRTN$, introduced by us elsewhere to explain nonlinear response of metal-insulator type mixtures). In this work which is a sequel to that paper, we consider the ac response of the $RRTN$-based correlated $RC$ ($CRC$) model. Numerical solutions of the Kirchoff's laws for the $CRC$ model give a power-law exponent (= 0.7 near $p = p_c$) of the modulus of the complex ac conductance at moderately low frequencies, in conformity with experiments on various types of disordered systems. But, at very low frequencies, it gives a simple quadratic or linear dependence on the frequency depending upon whether the system is percolating or not. We do also discuss the effective medium approximation ($EMA$) of our $CRC$ and the traditional random $RC$ network model, and discuss their comparative successes and shortcomings.
description: Revised and reduced version with 17 LaTeX pages plus 8 JPEG figures
ИНСТИТУТ ПРИОРИТЕТА В МЕЖДУНАРОДНЫХ АКТАХ
Creators: name: Жавдотова, Сабина
Publisher: name: Zenodo
Year: 2024

description: Помимо Парижской конвенции по охране промышленной собственности и договоров Всемирной организации интеллектуальной собственности, существует несколько других международных актов, которые регулируют порядок использования права приоритета в области интеллектуальной собственности.
TBA and TCSA with boundaries and excited states
Creators: name: Dorey, Patrick
name: Pocklington, Andrew
name: Tateo, Roberto
name: Watts, Gerard
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the spectrum of the scaling Lee-Yang model on a finite interval from two points of view: via a generalisation of the truncated conformal space approach to systems with boundaries, and via the boundary thermodynamic Bethe ansatz. This allows reflection factors to be matched with specific boundary conditions, and leads us to propose a new (and non-minimal) family of reflection factors to describe the one relevant boundary perturbation in the model. The equations proposed previously for the ground state on an interval must be revised in certain regimes, and we find the necessary modifications by analytic continuation. We also propose new equations to describe excited states, and check all equations against boundary truncated conformal space data. Access to the finite-size spectrum enables us to observe boundary flows when the bulk remains massless, and the formation of boundary bound states when the bulk is massive.
description: 25 pages, LaTeX 2e, 8 figures, uses epsf, amssymb, cite. Revised version: explanations expanded, normalisation of the boundary field corrected, two figures and three references added
Observation of strong surface state effects in the nonlinear magneto-optical response of Ni(110)
Creators: name: Veenstra, K. J.
name: Petukhov, A. V.
name: Jurdik, E.
name: Rasing, Th.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Spectroscopic magnetization induced optical Second Harmonic Generation (MSHG) measurements from a clean Ni(110) surface reveal strong resonance effects near 2.7 eV that can be attributed to the presence of an empty surface state. The good agreement with model calculations shows the potential of MSHG to probe spin polarized interface band structures.
description: REVTeX/EPS figures/Authors's single Postsript file, to appear in PRL, our new phase-sensitive detection technique is used (see PRB, 58, R16020 (1998)), for more details see http://www.sci.kun.nl/tvs/people/petukhov/
Analysis of the statistical behavior of genetic cluster-exact approximation
Creators: name: Hartmann, Alexander K.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The genetic cluster-exact approximation algorithm is an efficient method to calculate ground states of EA spin glasses. The method can be used to study ground-state landscapes by calculating many independent ground states for each realization of the disorder. The algorithm is analyzed with respect to the statistics of the ground states and the valleys of the energy landscape. Furthermore, the distribution inside each valley is evaluated. It is shown that the algorithm does not lead to a true T=0 thermodynamic distribution, i.e. each ground state has not the same frequency of occurrence when performing many runs. An extension of the technique is outlined, which guarantees that each ground states occurs with the same probability.
description: 7 pages, 7 figures, 28 references; update of references
Bi-modal Reprogramming of Cell Cycle by MiRNA-4673 Amplifies Human Neurogenic Capacity
Creators: name: Farahani, Ramin M
name: Rezaei-Lotfi, Saba
name: Simonian, Mary
name: Hunter, Neil
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Computational Biology

description: Molecular mechanisms that inform heterochronic adaptations of neurogenesis in Homo sapiens remain largely unknown. Here we uncover a signature in cell cycle that amplifies proliferative capacity of human neural progenitors by input from microRNA4673 encoded in notch-1. The miRNA instructs bimodal reprogramming of the cell cycle leading to initial synchronisation of neural precursors at G0 phase of the cell cycle followed by accelerated progression through interphase. The key event in G0 synchronisation is transient inhibition by miR4673 of cyclin-dependent kinase-18, a member of an ancient family of cyclins that license M-G1 transition. In parallel, autophagic degradation of p53/p21 and transcriptional silencing of XRCC3/BRCA2 relaxes G1/S cell cycle checkpoint and accelerates interphase by ≈2.8 fold. The resultant reprogrammed cell cycle amplifies the proliferative capacity and delays the differentiation of human neural progenitors.
On $G_2$-structures, special metrics and related flows
Creators: name: Fernández, Marisa
name: Fino, Anna
name: Raffero, Alberto
Publisher: name: arXiv
Year: 2018
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We review results about $G_2$-structures in relation to the existence of special metrics, such as Einstein metrics and Ricci solitons, and the evolution under the Laplacian flow on non-compact homogeneous spaces. We also discuss some examples in detail.
description: To appear in a forthcoming volume of the Fields Institute Communications, entitled "Lectures and Surveys on G2 manifolds and related topics"
The Bisognano-Wichmann Theorem for Massive Theories
Creators: name: Mund, Jens
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The geometric action of modular groups for wedge regions (Bisognano-Wichmann property) is derived from the principles of local quantum physics for a large class of Poincare covariant models in d=4. As a consequence, the CPT theorem holds for this class. The models must have a complete interpretation in terms of massive particles. The corresponding charges need not be localizable in compact regions: The most general case is admitted, namely localization in spacelike cones.
description: 16 pages; improved and corrected formulations
Colour Period Diagrams in the Era of Gaia DR2
Creators: name: Weingrill, Jörg
Publisher: name: Zenodo
Year: 2019
Subjects: astrophsics
stellar rotation
gyrochronology

description: The rotational evolution of main sequence stars is still not fully understood for specific masses and ages. Also the influence of additional parameters like e.g. metallicity have to be investigated more carefully. In order to gain a better understanding, we need to probe stellar open clusters in different age regimes to improve our models. I present two open clusters (NGC6633, IC4756) whose stellar memberships vastly improved with the advent of Gaia DR2. The rotation periods have been determined with Lomb Scargle and Clean respectively and refined using phase dispersion minimization. Using astrometric membership helps to clean up the colour magnitude diagrams. Gaia DR2 colours prove to be more reliable than most ground based surveys.
description: {"references": ["Strassmeier, K. G. et al. (2015). Stellar rotation, binarity, and lithium in the open cluster IC 4756", "De Medeiros, J. R. et al. (2013). Overview of semi-sinusoidal stellar variability with the CoRoT satellite"]}
Alseis longifolia Ducke
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Rubiaceae
Alseis
Alseis longifolia

description: [1436] Alseis longifolia Ducke
 Arch. Jard. Bot. Rio de Janeiro 3: 256 (Ducke 1922).
 HERBARIUM DATA (FG). — 2 collections at CAY. Sel. exs.: J.-J. de Granville B-4741.
SIZE. — Up to 45 cm dbh (Boom & Delprete 2002).
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 650, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Additional file 2: of Serum 25-hydroxyvitamin D levels and mortality risk in patients with liver cirrhosis: a protocol for a systematic review and meta-analysis of observational studies
Creators: name: Völker, Désirée
name: Grünhage, Frank
name: Wagenpfeil, Stefan
name: Lammert, Frank
name: Stokes, Caroline
Publisher: name: figshare
Year: 2019
Subjects: subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Science Policy

description: Search strategy. (DOCX 15 kb)
Effect of particle exchange on the glass transition of binary hard spheres
Creators: name: Ikeda, Harukuni
name: Zamponi, Francesco
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the replica theory of the liquid-glass transition for a binary mixture of large and small additive hard spheres. We consider two different ansätze for this problem: the frozen glass ansatz (FGA) in whichs the exchange of large and small particles in a glass state is prohibited, and the exchange glass ansatz (EGA), in which it is allowed. We calculate the dynamical and thermodynamical glass transition points with the two ansätze. We show that the dynamical transition density of the FGA is lower than that of the EGA, while the thermodynamical transition density of the FGA is higher than that of the EGA. We discuss the algorithmic implications of these results for the density-dependence of the relaxation time of supercooled liquids. We particularly emphasize the difference between the standard Monte Carlo and swap Monte Carlo algorithms. Furthermore, we discuss the importance of particle exchange for estimating the configurational entropy.
description: 16 pages, 5 figures
Transport in a Nearly Periodic Potential with a Magnetic Field
Creators: name: Eckern, U.
name: Ziegler, K.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A two-dimensional gas of non-interacting quasiparticles in a nearly periodic potential and a perpendicular magnetic field is studied. The potential is a superposition of a periodic potential, induced e.g. by a charge density wave or a vortex lattice of a type--II superconductor, and a weak random potential due to impurities. Approximating this model by Dirac fermions with random mass, random energy, and random vector potential, we evaluate the density of states and the Hall conductivity using a self-consistent approximation. We obtain a singular average density of states $ρ(E)\approxρ_0 +|E|^α$, where $α$ decreases with the strength of randomness. The Hall conductivity has a plateau which is destroyed for strong tunneling through the saddle points of the nearly periodic potential.
description: 10 pages, 4 figures, J. Phys. C (in press)
Additional file 3: of Serum 25-hydroxyvitamin D levels and mortality risk in patients with liver cirrhosis: a protocol for a systematic review and meta-analysis of observational studies
Creators: name: Völker, Désirée
name: Grünhage, Frank
name: Wagenpfeil, Stefan
name: Lammert, Frank
name: Stokes, Caroline
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Science Policy

description: Newcastle-Ottawa quality assessment scale for cohort studies (NOS). (DOCX 15 kb)
Adiabatic following of terahertz surface plasmon-polaritons based on tri-layered corrugated thin film coupler
Creators: name: Huang, Wei
name: Yin, Shan
name: Zhang, Wentao
name: Wang, Kaili
name: Zhang, Yuting
name: Han, Jiaguang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this paper, we utilize coupled mode theory (CMT) to model the coupling of surface plasmon polaritons (SPPs) between tri-layered corrugated thin films (CTF) structure coupler in the terahertz region. Employing the stimulated raman adiabatic passage (STIRAP) quantum control technique, we propose a novel directional coupler based on SPPs evolution in tri-layered CTF in some curved configuration. Our calculated results show that the SPPs can be completely transferred from the input to the output CTF waveguides, and even we consider SPPs propagation loss, the transfer rate is still above 70%. The performance of our coupler is also robust that it is not sensitive to the geometry of device and wavelength of SPPs. As a result, our device can tolerate defect induced by fabrication and manipulate THz wave at broadband.
description: 6 pages, 5 figures. New J. Phys (2019)
Transmission resonances on metallic gratings with very narrow slits
Creators: name: Porto, J. A.
name: Garcia-Vidal, F. J.
name: Pendry, J. B.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper we show how transmission metallic gratings with very narrow and deep enough slits can exhibit transmission resonances for wavelengths larger than the period of the grating. By using a transfer matrix formalism and a quasi-analytical model based on a modal expansion, we show that there are two possible ways of transferring light from the upper surface to the lower one: by the excitation of coupled surface plasmon polaritons on both surfaces of the metallic grating or by the coupling of incident plane waves with waveguide resonances located in the slits. Both mechanisms can lead to almost perfect transmittance for those particular resonances.
description: 4 pages (RevTex) + 4 postscript figures