cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Leptoria undetermined
Creators: name: Amjad, Farah
name: Ahusan, Mohamed
name: Amir, Hana
name: de Villiers, Nina M
name: Gress, Erika
name: Mah, Christopher L
name: Naeem, Shafiya
name: Rico-Seijo, Nuria
name: Samaai, Toufiek
name: Afzal, Maryiam S
name: Woodall, Lucy C
name: Stefanoudis, Paris V
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Anthozoa
Scleractinia
Merulinidae
Leptoria
Leptoria undetermined

description: Leptoria sp. indet.
Materials
Type status: Other material. Taxon: scientificName: Leptoria sp.; kingdom: Animalia; phylum: Cnidaria; class: Anthozoa-Hexacorallia; order: Scleractinia; family: Merulinidae; genus: Leptoria; Location: waterBody: Indian Ocean; country: Maldives; locality: North Male’, Vaavu, Laamu; minimumDepthInMeters: 2; maximumDepthInMeters: 10; locationRemarks: Nekton Maldives Mission; Identification: identifiedBy: Farah Amjad, Paris Stefanoudis, Mariyam Shidha Afzal, Hana Amir; dateIdentified: 2022, 2023; identificationRemarks: Identified only from imagery; Event: samplingProtocol: Submersible OR Remotely Operated Vehicle OR Snorkel; Record Level: basisOfRecord: Human observation
description: Published as part of Amjad, Farah, Ahusan, Mohamed, Amir, Hana, de Villiers, Nina M, Gress, Erika, Mah, Christopher L, Naeem, Shafiya, Rico-Seijo, Nuria, Samaai, Toufiek, Afzal, Maryiam S, Woodall, Lucy C & Stefanoudis, Paris V, 2024, An underwater imagery identification guide for shallow, mesophotic and deep-sea benthos in Maldives, pp. e 120128 in Biodiversity Data Journal 12 on page e120128, DOI: 10.3897/BDJ.12.e120128
A Low Metallicity Molecular Cloud In The Lower Galactic Halo
Creators: name: Hernandez, Audra K.
name: Wakker, Bart P.
name: Benjamin, Robert A.
name: French, David
name: Kerp, Juergen
name: Lockman, Felix J.
name: O'Toole, Simon
name: Winkel, Benjamin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We find evidence for the impact of infalling, low-metallicity gas on the Galactic disk. This is based on FUV absorption line spectra, 21-cm emission line spectra, and FIR mapping to estimate the abundance and physical properties of IV21 (IVC135+54-45), a galactic intermediate-velocity molecular cloud (IVMC) that lies ~300 pc above the disk. The metallicity of IV21 was estimated using observations toward the sdB star PG1144+615, located at a projected distance of 16 pc from the cloud's densest core, by measuring ion and HI column densities for comparison with known solar abundances. Despite the cloud's bright FIR emission and large column densities of molecular gas as traced by CO, we find that it has a sub-solar metallicity of log(Z/Z_Sun)=-0.43 +/- 0.12dex. IV21 is thus the first known sub-solar metallicity cloud in the solar neighborhood. In contrast, most intermediate-velocity clouds (IVC) have near-solar metallicities and are believed to originate in the Galactic Fountain. The cloud's low metallicity is also atypical for Galactic molecular clouds, especially in the light of the bright FIR emission which suggest a substantial dust content. The measured I_100mu/N(HI) ratio is a factor of three below the average found in high latitude \HI clouds within the solar neighborhood. We argue that IV21 represents the impact of an infalling, low-metallicity high-velocity cloud (HVC) that is mixing with disk gas in the lower Galactic halo.
description: 8 figures, Accepted to ApJ
Disputatio Philosophica: De Natura Physicae, Ejusque Principiis Internis; [1636]
Creators: name: Schragmüller, Johann Conrad
name: Werner, Philipp Christian
name: Zachmann, Simon
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2017

description: Erscheinungsjahr nach einem Chronogramm auf der Titelseite: Anno Mars In Te VtonICIs qVo DVrVs sæVIIt arVIs
Effect of polymer concentration and length of hydrophobic end block on the unimer-micelle transition broadness in amphiphilic ABA symmetric triblock copolymer solutions
Creators: name: Han, X. -G.
name: Ma, Y. -H.
name: Ouyang, S. -L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The effects of the length of each hydrophobic end block N_{st} and polymer concentration \barϕ_{P} on the transition broadness in amphiphilic ABA symmetric triblock copolymer solutions are studied using the self-consistent field lattice model. When the system is cooled, micelles are observed, i.e.,the homogenous solution (unimer)-micelle transition occurs. When N_{st} is increased, at fixed \barϕ_{P}, micelles occur at higher temperature, and the temperature-dependent range of micellar aggregation and half-width of specific heat peak for unimer-micelle transition increase monotonously. Compared with associative polymers, it is found that the magnitude of the transition broadness is determined by the ratio of hydrophobic to hydrophilic blocks, instead of chain length. When \barϕ_{P} is decreased, given a large N_{st}, the temperature-dependent range of micellar aggregation and half-width of specific heat peak initially decease, and then remain nearly constant. It is shown that the transition broadness is concerned with the changes of the relative magnitudes of the eductions of nonstickers and solvents from micellar cores.
description: 8 pages, 4 figures
SgrA$^{*}$ spin and mass estimates through the detection of an extremely large mass-ratio inspiral
Creators: name: Vazquez-Aceves, Veronica
name: Lin, Yiren
name: Torres-Orjuela, Alejandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Estimating the spin of ${\rm SgrA^\ast}$ is one of the current challenges we face in understanding the center of our Galaxy. In the present work, we show that detecting the gravitational waves (GWs) emitted by a brown dwarf inspiraling around ${\rm SgrA^\ast}$ will allow us to measure the mass and the spin of ${\rm SgrA^\ast}$ with unprecedented accuracy. Such systems are known as extremely large mass-ratio inspirals (XMRIs) and are expected to be abundant and loud sources in our galactic center. We consider XMRIs with a fixed orbital inclination and different spins of ${\rm SgrA^\ast}$ ($s$) between 0.1 and 0.9. For both cases, we obtain the number of circular and eccentric XMRIs expected to be detected by space-borne GW detectors like LISA and TianQin. We find that if the orbit is eccentric, then we expect to always have several XMRIs in band while for almost circular XMRIs, we only expect to have one source in band if ${\rm SgrA^\ast}$ is highly spinning. We later perform a Fisher matrix analysis to show that by detecting a single XMRI the mass of ${\rm SgrA^\ast}$ can be determined with an accuracy of the order $10^{-2}\,\text{M}_{\odot}$, while the spin can be measured with an accuracy between $10^{-7}$ and $10^{-4}$ depending on the orbital parameters of the XMRI.
description: 7 pages, 2 figures, 1 table
A Graphical Approach to Radio Frequency Quadrupole Design
Creators: name: Turemen, G.
name: Unel, G.
name: Yasatekin, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The design of a radio frequency quadrupole, an important section of all ion accelerators, and the calculation of its beam dynamics properties can be achieved using the existing computational tools. These programs, originally designed in 1980s, show effects of aging in their user interfaces and in their output. The authors believe there is room for improvement in both design techniques using a graphical approach and in the amount of analytical calculations before going into CPU burning finite element analysis techniques. Additionally an emphasis on the graphical method of controlling the evolution of the relevant parameters using the drag-to-change paradigm is bound to be beneficial to the designer. A computer code, named DEMIRCI, has been written in C++ to demonstrate these ideas. This tool has been used in the design of Turkish Atomic Energy Authority (TAEK)'s 1.5 MeV proton beamline at Saraykoy Nuclear Research and Training Center (SANAEM). DEMIRCI starts with a simple analytical model, calculates the RFQ behavior and produces 3D design files that can be fed to a milling machine. The paper discusses the experience gained during design process of SANAEM Project Prometheus (SPP) RFQ and underlines some of DEMIRCI's capabilities.
description: 7 pages, 9 figures
Sessile drop evaporation in a gap -- crossover between diffusion-limited and phase transition-limited regime
Creators: name: Hartmann, S.
name: Diddens, C.
name: Jalaal, M.
name: Thiele, U.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider the time evolution of a sessile drop of volatile partially wetting liquid on a rigid solid substrate. Thereby, the drop evaporates under strong confinement, namely, it sits on one of the two parallel plates that form a narrow gap. First, we develop an efficient mesoscopic thin-film description in gradient dynamics form. It couples the diffusive dynamics of the vertically averaged vapour density in the narrow gap to an evolution equation for the profile of the volatile drop. The underlying free energy functional incorporates wetting, interface and bulk energies of the liquid and gas entropy. The model allows us to investigate the transition between diffusion-limited and phase transition-limited evaporation for shallow droplets. Its gradient dynamics character also allows for a full-curvature formulation. Second, we compare results obtained with the mesoscopic model to corresponding direct numerical simulations solving the Stokes equation for the drop coupled to the diffusion equation for the vapour as well as to selected experiments. In passing, we discuss the influence of contact line pinning.
Crocidura fuscomurina
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Insectivora
Soricidae
Crocidura
Crocidura fuscomurina

description: Crocidura fuscomurina (Heuglin, 1865). Leopoldina, 5, in Nouv. Acta Acad. Caes. Leop.- Carol., 32:36. TYPE LOCALITY: Sudan, Bahr-el-Ghazal, Meshra-el-Req. DISTRIBUTION: Known only from type locality. COMMENT: Regarded as unidentifiable by Heim de Balsac and Meester, 1977, Part 1:16. RH considers it to be conspecific with bicolor.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Insectivora, pp. 58-106 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 75, DOI: 10.5281/zenodo.7353001
description: {"references": ["Heim de Balsac, H., and J. Meester. 1977. Order Insectivora. Part 1. Pp. 1 - 29, in The mammals of Africa: An identification manual (J. Meester and H. W. Setzer, eds.). [issued 22 Aug 1977]. Smithsonian Institution Press, Washington, D. C., not continuously paginated."]}
Migration of massive black hole binaries in self--gravitating accretion discs: Retrograde versus prograde
Creators: name: Roedig, Constanze
name: Sesana, Alberto
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the interplay between mass transfer, accretion and gravitational torques onto a black hole binary migrating in a self-gravitating, retrograde circumbinary disc. A direct comparison with an identical prograde disc shows that: (i) because of the absence of resonances, the cavity size is a factor a(1+e) smaller for retrograde discs; (ii) nonetheless the shrinkage of a circular binary semi--major axis, a, is identical in both cases; (iii) a circular binary in a retrograde disc remains circular while eccentric binaries grow more eccentric. For non-circular binaries, we measure the orbital decay rates and the eccentricity growth rates to be exponential as long as the binary orbits in the plane of its disc. Additionally, for these co-planar systems, we find that interaction (~ non--zero torque) stems only from the cavity edge plus a(1+e) in the disc, i.e. for dynamical purposes, the disc can be treated as a annulus of small radial extent. We find that simple 'dust' models in which the binary- disc interaction is purely gravitational can account for all main numerical results, both for prograde and retrograde discs. Furthermore, we discuss the possibility of an instability occurring for highly eccentric binaries causing it to leave the disc plane, secularly tilt and converge to a prograde system. Our results suggest that there are two stable configurations for binaries in self-gravitating discs: the special circular retrograde case and an eccentric (e~ 0.6) prograde configuration as a stable attractor.
description: 14 pages, 2 Tabes, 11 Figures, submitted to MNRAS, comments welcome
Learning Music-Dance Representations through Explicit-Implicit Rhythm Synchronization
Creators: name: Yu, Jiashuo
name: Pu, Junfu
name: Cheng, Ying
name: Feng, Rui
name: Shan, Ying
Publisher: name: arXiv
Year: 2022
Subjects: subject: Sound (cs.SD)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Although audio-visual representation has been proved to be applicable in many downstream tasks, the representation of dancing videos, which is more specific and always accompanied by music with complex auditory contents, remains challenging and uninvestigated. Considering the intrinsic alignment between the cadent movement of dancer and music rhythm, we introduce MuDaR, a novel Music-Dance Representation learning framework to perform the synchronization of music and dance rhythms both in explicit and implicit ways. Specifically, we derive the dance rhythms based on visual appearance and motion cues inspired by the music rhythm analysis. Then the visual rhythms are temporally aligned with the music counterparts, which are extracted by the amplitude of sound intensity. Meanwhile, we exploit the implicit coherence of rhythms implied in audio and visual streams by contrastive learning. The model learns the joint embedding by predicting the temporal consistency between audio-visual pairs. The music-dance representation, together with the capability of detecting audio and visual rhythms, can further be applied to three downstream tasks: (a) dance classification, (b) music-dance retrieval, and (c) music-dance retargeting. Extensive experiments demonstrate that our proposed framework outperforms other self-supervised methods by a large margin.
description: Accepted for publication in IEEE Transactions on Multimedia
Crocidura glassi Heim de Balsac 1966
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Insectivora
Soricidae
Crocidura
Crocidura glassi

description: Crocidura glassi Heim de Balsac, 1966. Mammalia, 30:448. TYPE LOCALITY: Ethiopia, Harar, Gara Mulata Mtns. DISTRIBUTION: Ethiopian highlands east of Rift Valley.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Insectivora, pp. 58-106 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 75, DOI: 10.5281/zenodo.7353001
Laboratory studies of THGEM-based WELL structures with resistive anodes
Creators: name: Arazi, L.
name: Pitt, M.
name: Bressler, S.
name: Moleri, L.
name: Rubin, A.
name: Breskin, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: In this work we investigate three variants of single amplification-stage detector elements; they comprise THGEM electrodes closed at their bottom with metallic or resistive anodes to form WELL-type configurations. We present the results of a comparative study of the Thick-WELL (THWELL), Resistive-WELL (RWELL) and Segmented Resistive WELL (SRWELL), focusing on their performance in terms of spark-quenching capability, gain variation with position and counting rate, pulse shapes and signal propagation to neighboring readout pads; the study included both 30x30 and 100x100 mm$^2$ detectors. It was shown that the WELL structures with resistive anodes offer stable operation even in a highly ionizing environment, with effective spark quenching, as well as higher gain than the standard THGEM/induction-gap configuration. Cross talk between neighboring readout pads was shown to be effectively eliminated in the segmented detector with a conductive grid underneath the resistive layer. The latter multiplier should allow for the design of very thin detectors, e.g. sampling elements in digital hadronic calorimeters planned for experiments in future linear colliders.
description: Submitted to JINST
Merulina undetermined
Creators: name: Amjad, Farah
name: Ahusan, Mohamed
name: Amir, Hana
name: de Villiers, Nina M
name: Gress, Erika
name: Mah, Christopher L
name: Naeem, Shafiya
name: Rico-Seijo, Nuria
name: Samaai, Toufiek
name: Afzal, Maryiam S
name: Woodall, Lucy C
name: Stefanoudis, Paris V
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Anthozoa
Scleractinia
Merulinidae
Merulina
Merulina undetermined

description: Merulina sp. indet.
Materials
Type status: Other material. Taxon: scientificName: Merulina sp.; kingdom: Animalia; phylum: Cnidaria; class: Anthozoa-Hexacorallia; order: Scleractinia; family: Merulinidae; genus: Merulina; Location: waterBody: Indian Ocean; country: Maldives; locality: Vaavu, Addu; minimumDepthInMeters: 10; maximumDepthInMeters: 30; locationRemarks: Nekton Maldives Mission; Identification: identifiedBy: Farah Amjad, Paris Stefanoudis, Mariyam Shidha Afzal, Hana Amir; dateIdentified: 2022, 2023; identificationRemarks: Identified only from imagery; Event: samplingProtocol: Submersible OR Remotely Operated Vehicle OR Snorkel; Record Level: basisOfRecord: Human observation
description: Published as part of Amjad, Farah, Ahusan, Mohamed, Amir, Hana, de Villiers, Nina M, Gress, Erika, Mah, Christopher L, Naeem, Shafiya, Rico-Seijo, Nuria, Samaai, Toufiek, Afzal, Maryiam S, Woodall, Lucy C & Stefanoudis, Paris V, 2024, An underwater imagery identification guide for shallow, mesophotic and deep-sea benthos in Maldives, pp. e 120128 in Biodiversity Data Journal 12 on page e120128, DOI: 10.3897/BDJ.12.e120128
Fractional Quantum Zeno Effect Emerging from Non-Hermitian Physics
Creators: name: Sun, Yue
name: Shi, Tao
name: Liu, Zhiyong
name: Zhang, Zhidong
name: Xiao, Liantuan
name: Jia, Suotang
name: Hu, Ying
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Exploring non-Hermitian phenomenology is an exciting frontier of modern physics. However, the demonstration of a non-Hermitian phenomenon that is quantum in nature has remained elusive. Here, we predict quantum non-Hermitian phenomena: the fractional quantum Zeno (FQZ) effect and FQZ-induced photon antibunching. We consider a quantum optics platform with reservoir engineering, where nonlinear emitters are coupled to a bath of decaying bosonic modes whose own decay rates form band structures. By engineering the dissipation band, the spontaneous emission of emitters can be suppressed by strong dissipation through an algebraic scaling with fractional exponents - the FQZ effect. This fractional scaling originates uniquely from the divergent dissipative density of states near the dissipation band edge, different from the traditional closed-bath context. We find FQZ-induced strong photon antibunching in the steady state of a driven emitter even for weak nonlinearities. Remarkably, we identify that the sub-Poissonian quantum statistics of photons, which has no classical analogs, stems here from the key role of non-Hermiticity. Our setup is experimentally feasible with the techniques used to design lattice models with dissipative couplings.
description: 16+15 pages, 8+6 figures
Dark Energy from holographic theories with hyperscaling violation
Creators: name: Cadoni, Mariano
name: Ciulu, Matteo
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that analytical continuation maps scalar solitonic solutions of Einstein-scalar gravity, interpolating between an hyperscaling violating and an Anti de Sitter (AdS) region, in flat FLRW cosmological solutions sourced by a scalar field. We generate in this way exact FLRW solutions that can be used to model cosmological evolution driven by dark energy (a quintessence field) and usual matter. In absence of matter, the flow from the hyperscaling violating regime to the conformal AdS fixed point in holographic models corresponds to cosmological evolution from power-law expansion at early cosmic times to a de Sitter (dS) stable fixed point at late times. In presence of matter, we have a scaling regime at early times, followed by an intermediate regime in which dark energy tracks matter. At late times the solution exits the scaling regime with a sharp transition to a dS spacetime. The phase transition between hyperscaling violation and conformal fixed point observed in holographic gravity has a cosmological counterpart in the transition between a scaling era and a dS era dominated by the energy of the vacuum.
description: 18 pages, 4 figures. V2:Some typo errors and Eq. (3.12) corrected, three references added
Crocidura gouliminensis Vesmanis and Vesmanis 1979
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Insectivora
Soricidae
Crocidura
Crocidura gouliminensis

description: Crocidura gouliminensis Vesmanis and Vesmanis, 1979. Zool. Abh. Mus. Tierk. Dresden, 36(2):52. TYPE LOCALITY: Morocco, Agadir Prov., 28 km S. W. Goulimine, 28° 46' N., 10° 14 ' W. DISTRIBUTION: Known only from the type locality. COMMENT: RH questions the validity of this species.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Insectivora, pp. 58-106 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 75, DOI: 10.5281/zenodo.7353001
Mycedium undetermined
Creators: name: Amjad, Farah
name: Ahusan, Mohamed
name: Amir, Hana
name: de Villiers, Nina M
name: Gress, Erika
name: Mah, Christopher L
name: Naeem, Shafiya
name: Rico-Seijo, Nuria
name: Samaai, Toufiek
name: Afzal, Maryiam S
name: Woodall, Lucy C
name: Stefanoudis, Paris V
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Anthozoa
Scleractinia
Merulinidae
Mycedium
Mycedium undetermined

description: Mycedium sp. indet.
Materials
Type status: Other material. Taxon: scientificName: Mycedium sp.; kingdom: Animalia; phylum: Cnidaria; class: Anthozoa-Hexacorallia; order: Scleractinia; family: Merulinidae; genus: Mycedium; Location: waterBody: Indian Ocean; country: Maldives; locality: North Male’, Vaavu, Laamu, Huvadhu, Addu; minimumDepthInMeters: 10; maximumDepthInMeters: 30; locationRemarks: Nekton Maldives Mission; Identification: identifiedBy: Farah Amjad, Paris Stefanoudis, Mariyam Shidha Afzal, Hana Amir; dateIdentified: 2022, 2023; identificationRemarks: Identified only from imagery; Event: samplingProtocol: Submersible OR Remotely Operated Vehicle OR Snorkel; Record Level: basisOfRecord: Human observation
description: Published as part of Amjad, Farah, Ahusan, Mohamed, Amir, Hana, de Villiers, Nina M, Gress, Erika, Mah, Christopher L, Naeem, Shafiya, Rico-Seijo, Nuria, Samaai, Toufiek, Afzal, Maryiam S, Woodall, Lucy C & Stefanoudis, Paris V, 2024, An underwater imagery identification guide for shallow, mesophotic and deep-sea benthos in Maldives, pp. e 120128 in Biodiversity Data Journal 12 on page e120128, DOI: 10.3897/BDJ.12.e120128
Soft decoding without soft demapping with ORBGRAND
Creators: name: An, Wei
name: Medard, Muriel
name: Duffy, Ken R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: For spectral efficiency, higher order modulation symbols confer information on more than one bit. As soft detection forward error correction decoders assume the availability of information at binary granularity, however, soft demappers are required to compute per-bit reliabilities from complex-valued signals. Here we show that the recently introduced universal soft detection decoder ORBGRAND can be adapted to work with symbol-level soft information, obviating the need for energy expensive soft demapping. We establish that doing so reduces complexity while retaining the error correction performance achieved with the optimal demapper.
Long range universal quantum computation in large-size coupled cavity array independent of cavity number
Creators: name: Shao, Xiao-Qiang
name: Zheng, Tai-Yu
name: You, Jia-Bin
name: Oh, C. H.
name: Zhang, Shou
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a new approach for implementing a $\sqrt{\rm swap}$ gate between two spatially far apart sites connected by a large-size coupled cavity array as quantum bus. The duration is only related to the parity of cavity number but independent of a specific number of cavity, thus it is possible to process quantum information in an arbitrary long distance in principle without time varied. Referring to the recent experimental progresses on coupled-cavity array, we also make an assessment of the scalability and take the cavity number $N$ = 5 as an example to illustrate the robustness of our proposal via quantum process tomography.
description: 5 pages, 4 figures
Two-loop electroweak threshold corrections to the bottom and top Yukawa couplings
Creators: name: Kniehl, Bernd A.
name: Veretin, Oleg L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the relationship between the $\overline{\mathrm{MS}}$ Yukawa coupling and the pole mass for the bottom and top quarks at the two-loop electroweak order ${\cal O}(α^2)$ in the gaugeless limit of the standard model. We also consider the $\overline{\mathrm{MS}}$ to pole mass relationships at this order, which include tadpole contributions to ensure the gauge independence of the $\overline{\mathrm{MS}}$ masses. In order to suppress numerically large tadpole contributions, we propose a redefinition of the running heavy-quark mass in terms of the $\overline{\mathrm{MS}}$ Yukawa coupling. We also present $Δr$ in the $\overline{\mathrm{MS}}$ scheme at ${\cal O}(α^2)$ in the gaugeless limit. As an aside, we also list the exact two-loop expression for the mass counterterms of the bottom and top quarks.
description: 22 pages, 3 figures, matches journal publication including corrigendum
Theoria Physica De Sensibilibus Rerum Naturalium Principiis; Anno M.DC.XLII
Creators: name: Geilfus, Johann
name: Maccius, Christoph
name: Brunn, Philibert
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2017

description: Widmungsempfänger: Jacob Jung, David Engler, Johann Koch, Eitel Sigismund, Michael Laminit, Johann Jacob Jenisch, Jacob Eckold, Christian Seyfrid. - Beiträger, Tobias Hermann, Georg Christoph Burger, Johann Sigismund Majer
Superradiance of Degenerate Fermi Gases in a Cavity
Creators: name: Chen, Yu
name: Yu, Zhenhua
name: Zhai, Hui
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In this letter we consider spinless Fermi gases placed inside a cavity and study the critical strength of pumping field for driving a superradiance transition. We emphasize that Fermi surface nesting effect strongly enhances the superradiance tendency. Around certain fillings, when the Fermi surface is nearly nested with a relevant nesting momentum, the susceptibility of the system toward a checkboard density-wave ordered state is strongly enhanced, because of which a much smaller (sometime even vanishingly small) critical pumping field strength can lead to superradiance. This leads to interesting reentrance behavior and topologically distinct structure in the phase diagram. Away from these fillings, the Pauli exclusion principle brings about the dominant effect for which the critical pumping strength is lowered in the low-density regime and increased in the high-density regime, in comparison to a Bose gas with same density. These results open the prospect of studying rich phenomena of degenerate Fermi gases in cavity.
description: 5 pages, 4 figures, revised version
Krylov Complexity in Open Quantum Systems
Creators: name: Liu, Chang
name: Tang, Haifeng
name: Zhai, Hui
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Krylov complexity is a novel measure of operator complexity that exhibits universal behavior and bounds a large class of other measures. In this letter, we generalize Krylov complexity from a closed system to an open system coupled to a Markovian bath, where Lindbladian evolution replaces Hamiltonian evolution. We show that Krylov complexity in open systems can be mapped to a non-hermitian tight-binding model in a half-infinite chain. We discuss the properties of the non-hermitian terms and show that the strengths of the non-hermitian terms increase linearly with the increase of the Krylov basis index $n$. Such a non-hermitian tight-binding model can exhibit localized edge modes that determine the long-time behavior of Krylov complexity. Hence, the growth of Krylov complexity is suppressed by dissipation, and at long-time, Krylov complexity saturates at a finite value much smaller than that of a closed system with the same Hamitonian. Our conclusions are supported by numerical results on several models, such as the Sachdev-Ye-Kitaev model and the interacting fermion model. Our work provides insights for discussing complexity, chaos, and holography for open quantum systems.
description: 8 pages, 5 figures, a mistake in the operator Lindblad equation is corrected
A new vacuum for Loop Quantum Gravity
Creators: name: Dittrich, Bianca
name: Geiller, Marc
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct a new vacuum for loop quantum gravity, which is dual to the Ashtekar-Lewandowski vacuum. Because it is based on BF theory, this new vacuum is physical for $(2+1)$-dimensional gravity, and much closer to the spirit of spin foam quantization in general. To construct this new vacuum and the associated representation of quantum observables, we introduce a modified holonomy-flux algebra which is cylindrically consistent with respect to the notion of refinement by time evolution suggested in [1]. This supports the proposal for a construction of a physical vacuum made in [1,2], also for $(3+1)$-dimensional gravity. We expect that the vacuum introduced here will facilitate the extraction of large scale physics and cosmological predictions from loop quantum gravity.
description: 11 pages, 5 figures
$γ$ rays run on time
Creators: name: Martínez, Daniel Beltrán
name: Llanes-Estrada, Felipe J.
name: Tejedor-García, Gloria
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Significant absorption of radiation is usually accompanied by refraction. This is not the case for $γ$ rays travelling cosmic distances. We show that the real and imaginary parts of the refraction index are indeed commensurable, as they are related by dispersion relations, but when turning to physical observables, the (finite) optical depth is way larger than the (infinitesimal) time delay of the gamma rays relative to gravitational radiation. The numerically large factor solving the apparent contradiction is $E_γ/H_0$ arising from basic wave properties (Bouguer-Beer-Lambert law) and the standard cosmological model, respectively.
description: 11 pages containing 9 plots
Noncommutative $SO(2,3)_{\star}$ Gauge Theory of Gravity
Creators: name: Ćirić, Marija Dimitrijević
name: Đorđević, Dušan
name: Gočanin, Dragoljub
name: Nikolić, Biljana
name: Radovanović, Voja
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Topological gravity (in the sense that it is metric-independent) in a $2n$-dimensional spacetime can be formulated as a gauge field theory for the AdS gauge group $SO(2,2n-1)$ by adding a multiplet of scalar fields. These scalars can break the gauge invariance of the topological gravity action, thus making a connection with Einstein's gravity. This review is about a noncommutative (NC) star-product deformation of the four-dimensional AdS gauge theory of gravity, including Dirac spinors and the Yang-Mills field. In general, NC actions can be expanded in powers of the canonical noncommutativity parameter $θ$ using the Seiberg-Witten map. The leading-order term of the expansion is the classical action, while the higher-order $θ$-dependent terms are interpreted as new types of coupling between classical fields due to spacetime noncommutativity. We study how these perturbative NC corrections affect the field equations of motion and derive some phenomenological consequences, such as NC-deformed Landau levels of an electron. Finally, we discuss how topological gravity in four dimensions (both classical and noncommutative) appears as a low-energy sector of five-dimensional Chern-Simons gauge theory in the sense of Kaluza-Klein reduction.
description: 18 pages; Contribution to the special issue of the European Physical Journal on "Noncommutativity and Physics"; v2: published version
Oulophyllia undetermined
Creators: name: Amjad, Farah
name: Ahusan, Mohamed
name: Amir, Hana
name: de Villiers, Nina M
name: Gress, Erika
name: Mah, Christopher L
name: Naeem, Shafiya
name: Rico-Seijo, Nuria
name: Samaai, Toufiek
name: Afzal, Maryiam S
name: Woodall, Lucy C
name: Stefanoudis, Paris V
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Cnidaria
Anthozoa
Scleractinia
Merulinidae
Oulophyllia
Oulophyllia undetermined

description: Oulophyllia sp. indet.
Materials
Type status: Other material. Taxon: scientificName: Oulophyllia sp.; kingdom: Animalia; phylum: Cnidaria; class: Anthozoa-Hexacorallia; order: Scleractinia; family: Merulinidae; genus: Oulophyllia; Location: waterBody: Indian Ocean; country: Maldives; locality: Laamu; minimumDepthInMeters: 8; maximumDepthInMeters: 10; locationRemarks: Nekton Maldives Mission; Identification: identifiedBy: Farah Amjad, Paris Stefanoudis, Mariyam Shidha Afzal, Hana Amir; dateIdentified: 2022, 2023; identificationRemarks: Identified only from imagery; Event: samplingProtocol: Submersible OR Remotely Operated Vehicle OR Snorkel; Record Level: basisOfRecord: Human observation
description: Published as part of Amjad, Farah, Ahusan, Mohamed, Amir, Hana, de Villiers, Nina M, Gress, Erika, Mah, Christopher L, Naeem, Shafiya, Rico-Seijo, Nuria, Samaai, Toufiek, Afzal, Maryiam S, Woodall, Lucy C & Stefanoudis, Paris V, 2024, An underwater imagery identification guide for shallow, mesophotic and deep-sea benthos in Maldives, pp. e 120128 in Biodiversity Data Journal 12 on page e120128, DOI: 10.3897/BDJ.12.e120128
Motion of a parametrically driven damped coplanar double pendulum
Creators: name: Sarkar, Rebeka
name: Kumar, Krishna
name: Khastgir, Sugata Pratik
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Physics (physics.class-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present the results of linear stability of a damped coplanar double pendulum and its non-linear motion, when the point of suspension is vibrated sinusoidally in the vertical direction with amplitude $a$ and frequency $ω$. A double pendulum has two pairs of Floquet multipliers, which have been calculated for various driving parameters. We have considered the stability of a double pendulum when it is in any of its possible stationary states: (i) both pendulums are either vertically downward or upward and (ii) one pendulum is downward, and the other is upward. The damping is considered to be velocity-dependent, and the driving frequency is taken in a wide range. A double pendulum excited from its stable state shows both periodic and chaotic motion. The periodic motion about its pivot may be either oscillatory or rotational. The periodic swings of a driven double pendulum may be either harmonic or subharmonic for lower values of $a$. The limit cycles corresponding to the normal mode oscillations of a double pendulum of two equal masses are squeezed into a line in its configuration space. For unequal masses, the pendulum shows multi-period swings for smaller values of $a$ and damping, while chaotic swings or rotational motion at relatively higher values of $a$. The parametric driving may lead to stabilization of a partially or fully inverted double pendulum.
description: 24 pages, 16 figures
Phase transformation B1 to B2 in TiC, TiN, ZrC and ZrN under pressure
Creators: name: Ivashchenko, V. I.
name: Turchi, P. E. A.
name: Shevchenko, V. I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Phase stability of various phases of MX (M = Ti, Zr; X = C, N) at equilibrium and under pressure is examined based on first-principles calculations of the electronic and phonon structures. The results reveal that all B1 (NaCl-type) MX structures undergo a phase transition to the B2-structures under high pressure in agreement with the previous total-energy calculations. The B1-MX structures are dynamically stable under very high pressure (210-570 GPa). The pressure-induced B2 (CsCl-type) MC phases are dynamically unstable even at high pressures, and TiN and ZrN are found to crystallize with the B2-structure only at pressures above 55 GPa. The first-order B1-to-B2 phase transition in these nitrides is not related to the softening of phonon modes, and the dynamical instability of B2-MX is associated with a high density of states at the Fermi level.
description: 9 pages, 4 figures
Crocidura gracilipes Peters 1870
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Insectivora
Soricidae
Crocidura
Crocidura gracilipes

description: Crocidura gracilipes Peters, 1870. Monatsb. Preuss. Akad. Wiss. Berlin, p. 584. TYPE LOCALITY: Tanzania, Mt. Kilamanjaro, "auf der Reise nach dem Kilimandscharo "; somewhat uncertain. DISTRIBUTION: South Africa to S. Sudan, S. Ethiopia, W. Somalia; perhaps Guinea and Guinea-Bissau; Cameroun. COMMENT; Includes altae, hildegardeae, holobrunneus, ibeana, lutreola, maanjae, phaios, procera, rubecula, silacea and virgata; see Heim de Balsac and Meester, 1977, Part 1:16. Gureev, 1979:410-412, listed hildegardeae, ibeana, lutreola, maanjae, and silacea as distinct species without comment. Dieterlen and Heim de Balsac, 1979, Saugetierk. Mitt., 27:241-287, listed hildegardeae as a distinct species. For comment on type locality, see Moreau, et al., 1946, Proc. Zool. Soc. Lond., 1945:395. ISIS NUMBER: 5301403007005048001 as C. gracilipes. 5301403007005053001 as C. hildegardeae. 5301403007005121001 as C. silacea.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Insectivora, pp. 58-106 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 75, DOI: 10.5281/zenodo.7353001
description: {"references": ["Heim de Balsac, H., and J. Meester. 1977. Order Insectivora. Part 1. Pp. 1 - 29, in The mammals of Africa: An identification manual (J. Meester and H. W. Setzer, eds.). [issued 22 Aug 1977]. Smithsonian Institution Press, Washington, D. C., not continuously paginated.", "Gureev, A. A. 1979. Fauna SSSR, Mlekopitayutschie, tom. 4, vyp. 2. Nasekomoyadnye ... [Fauna of the USSR, Mammals, vol. 4, pt. 2. Insectivores (Mammalia, Insectivora)]. Nauka, Leningrad, 501 pp. (in Russian).", "Dieterlen, F., and H. Heim de Balsac. 1979. Zur Okologie und Taxonomie der Spitzmause (Soricidae) des Kivu-Gebietes. Saugetierkundliche Mitteilungen, 27: 241 - 287."]}
Level and pseudo-Gorenstein binomial edge ideals
Creators: name: Rinaldo, Giancarlo
name: Sarkar, Rajib
Publisher: name: arXiv
Year: 2022
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13D02 13C14 05E40

description: We prove that level binomial edge ideals with regularity 2 and pseudo-Gorenstein binomial edge ideals with regularity 3 are cones, and we describe them completely. Also, we characterize level and pseudo-Gorenstein binomial edge ideals of bipartite graphs.
description: 17 pages, 2 figures. Some typos are fixed
A proposition of a robust system for historical document images indexation
Creators: name: Zaghden, Nizar
name: Mullot, Remy
name: Alimi, Mohamed Adel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Characterizing noisy or ancient documents is a challenging problem up to now. Many techniques have been done in order to effectuate feature extraction and image indexation for such documents. Global approaches are in general less robust and exact than local approaches. That's why, we propose in this paper, a hybrid system based on global approach(fractal dimension), and a local one based on SIFT descriptor. The Scale Invariant Feature Transform seems to do well with our application since it's rotation invariant and relatively robust to changing illumination.In the first step the calculation of fractal dimension is applied to images in order to eliminate images which have distant features than image request characteristics. Next, the SIFT is applied to show which images match well the request. However the average matching time using the hybrid approach is better than "fractal dimension" and "SIFT descriptor" if they are used alone.
description: 7 pages
On the semigroup $\boldsymbol{B}_ω^{\mathscr{F}_n}$ which is generated by the family $\mathscr{F}_n$ of finite bounded intervals of $ω$
Creators: name: Gutik, Oleg
name: Popadiuk, Olha
Publisher: name: arXiv
Year: 2022
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: Primary 20A15, 22A15, Secondary 54D10, 54D30, 54H12

description: We study the semigroup $\boldsymbol{B}_ω^{\mathscr{F}}$, which is introduced in the paper [O. Gutik and M. Mykhalenych, \emph{On some generalization of the bicyclic monoid}, Visnyk Lviv. Univ. Ser. Mech.-Mat. \textbf{90} (2020), 5--19 (in Ukrainian)], in the case when the family $\mathscr{F}_n$ generated by the set $\{0,1,\ldots,n\}$. We show that the Green relations $\mathscr{D}$ and $\mathscr{J}$ coincide in $\boldsymbol{B}_ω^{\mathscr{F}_n}$, the semigroup $\boldsymbol{B}_ω^{\mathscr{F}_n}$ is isomorphic to the semigroup $\mathscr{I}_ω^{n+1}(\overrightarrow{\mathrm{conv}})$ of partial convex order isomorphisms of $(ω,\leqslant)$ of the rank $\leqslant n+1$, and $\boldsymbol{B}_ω^{\mathscr{F}_n}$ admits only Rees congruences. Also, we study shift-continuous topologies on the semigroup $\boldsymbol{B}_ω^{\mathscr{F}_n}$. In particular we prove that for any shift-continuous $T_1$-topology $τ$ on the semigroup $\boldsymbol{B}_ω^{\mathscr{F}_n}$ every non-zero element of $\boldsymbol{B}_ω^{\mathscr{F}_n}$ is an isolated point of $(\boldsymbol{B}_ω^{\mathscr{F}_n},τ)$, $\boldsymbol{B}_ω^{\mathscr{F}_n}$ admits the unique compact shift-continuous $T_1$-topology, and every $ω_{\mathfrak{d}}$-compact shift-continuous $T_1$-topology is compact. We describe the closure of the semigroup $\boldsymbol{B}_ω^{\mathscr{F}_n}$ in a Hausdorff semitopological semigroup and prove the criterium when a topological inverse semigroup $\boldsymbol{B}_ω^{\mathscr{F}_n}$ is $H$-closed in the class of Hausdorff topological semigroups.
description: 19 pages, 1 figure
Classification and Quantification of Entanglement Through Wedge Product and Geometry
Creators: name: Mahanti, Soumik
name: Dutta, Sagnik
name: Panigrahi, Prasanta K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Wedge product of post-measurement vectors leading to an `area' measure of the parallelogram has been shown to give the generalized I-concurrence measure of entanglement. Extending the wedge product formalism to multi qudit systems, we have presented a modified faithful entanglement measure, incorporating the higher dimensional volume and the area elements of the parallelepiped formed by the post-measurement vectors. The measure fine grains the entanglement monotone, wherein different entangled classes manifest with different geometries. We have presented a complete analysis for the bipartite qutrit case considering all possible geometric structures. Three entanglement classes can be identified with different geometries of post-measurement vectors, namely three planar vectors, three mutually orthogonal vectors, and three vectors that are neither planar and not all of them are mutually orthogonal. It is further demonstrated that the geometric condition of area and volume maximization naturally leads to the maximization of entanglement. The wedge product approach uncovers an inherent geometry of entanglement and is found to be very useful for characterization and quantification of entanglement in higher dimensional systems.
description: 10 pages
Benefits and Pitfalls of PubChem Compounds Sourced from SureChEMBL, Patentscope, and Google Patents
Creators: name: Ohms, Joerg
Publisher: name: Zenodo
Year: 2023
Subjects: Patent
PaubChem
SureChEMBL
Patentscope
Google Patents

description: Presentation PIUG Community Engagement Hour June 07, 2023 Validity of of PubChem Compounds Sourced from SureChEMBL, Patentscope, and Google Patents