cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Letter from George Huxley to Emmett L. Bennett Jr., January 24, 1958
Creators: name: Huxley, George
Publisher: name: The University of Texas at Austin
Year: 1958
Subjects: Emmett L. Bennett, Jr. Collection
Emmett L. Bennett, Jr. Collection--Correspondence
Emmett L. Bennett, Jr. Collection--Correspondence--George Huxley
Tentative Text of Tablets found at Pylos 1955
British School at Athens

description: Huxley verifies the receipt of the work "Tentative Texts of Tablets found at Pylos 1955" on behalf of the British School at Athens and thanks Bennett for the gift.
Spin-polarized low-density neutron matter
Creators: name: Gezerlis, Alexandros
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Low-density neutron matter is relevant to the study of neutron-rich nuclei and neutron star crusts. Unpolarized neutron matter has been studied extensively over a number of decades, while experimental guidance has recently started to emerge from the field of ultracold atomic gases. In this work, we study population-imbalanced neutron matter (possibly relevant to magnetars and to density functionals of nuclei) applying a Quantum Monte Carlo method that has proven successful in the field of cold atoms. We report on the first ab initio simulations of superfluid low-density polarized neutron matter. For systems with small imbalances, we find a linear dependence of the energy on the polarization, the proportionality coefficient being dependent on the density. We also present results for the momentum and pair distributions of the two fermionic components.
description: 8 pages, 3 figures, 1 table; v2 corresponds to the published version
An examination of literary and structural aspects of Shaun Tan’s picturebooks and their conveyance of social issues
Creators: name: Smith, Meaghan
Publisher: name: University of British Columbia
Year: 2017

description: This thesis examines the way format, content and linguistic elements convey social issues portrayed in picturebooks. Drawing on David Lewis’ theory of the picturebook as process, three works by Shaun Tan, The Arrival, The Rabbits, and The Red Tree, are analyzed. These analyses illustrate how Tan uses the interplay between text and illustration to provide social commentary on immigration, colonialism, and depression respectively.
Quantum pumping in graphene with a perpendicular magnetic field
Creators: name: Tiwari, Rakesh P.
name: Blaauboer, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider quantum pumping of Dirac fermions in a monolayer of graphene in the presence of a perpendicular magnetic field in the central pumping region. The two external pump parameters are electrical voltages applied to the graphene sheet on either side of the pumping region. We analyze this pump within scattering matrix formalism and calculate both pumped charge and spin currents. The predicted charge currents are of the order of 1000 nA, which is readily observable using current technology.
description: 3 pages, 3 figures
Random matrix model at nonzero chemical potentials with anomaly effects
Creators: name: Fujii, H.
name: Sano, T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Phase diagram of the chiral random matrix model with U(1)A breaking term is studied with the quark chemical potentials varied independently at zero temperature, by taking the chiral and meson condensates as the order parameters. Although, without the U(1)A breaking term, chiral transition of each flavor can happen separately responding to its chemical potential, the U(1)A breaking terms mix the chiral condensates and correlate the phase transitions. In the three flavor case, we find that there are mixings between the meson and chiral condensates due to the U(1)A anomaly, which makes the meson condensed phase more stable. Increasing the hypercharge chemical potential ($μ_Y$) with the isospin and quark chemical potentials ($μ_I$, $μ_q$) kept small, we observe that the kaon condensed phase becomes the ground state and at the larger $μ_Y$ the pion condense phase appears unexpectedly, which is caused by the competition between the chiral restoration and the meson condensation. The similar happens when $μ_Y$ and $μ_I$ are exchanged, and the kaon condensed phase becomes the ground state at larger $μ_I$ below the full chiral restoration.
description: 12 pages, 8 figures
Impact of squark flavour violation on neutralino dark matter
Creators: name: Herrmann, Björn
name: Klasen, Michael
name: Boulc'h, Quentin Le
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the possibility of new sources of flavour violation in the squark sector of supersymmetric models in the context of the dark matter relic density. We show that the corresponding non-minimal flavour violation terms in the squark mass matrices can have an important impact on the thermally averaged (co)annihilation cross section of the neutralino, and in consequence can modify its predicted relic density. We discuss in detail the relevant effects and present a numerical study of neutralino annihilation and coannihilation in this context. We also comment on the LHC phenomenology of the corresponding scenarios.
description: 16 pages, 11 figures. One figure added, wording improved. Version as published in Phys. Rev. D
Euler-Poincaré formulation of hybrid plasma models
Creators: name: Holm, Darryl D.
name: Tronci, Cesare
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Three different hybrid Vlasov-fluid systems are derived by applying reduction by symmetry to Hamilton's variational principle. In particular, the discussion focuses on the Euler-Poincaré formulation of three major hybrid MHD models, which are compared in the same framework. These are the current-coupling scheme and two different variants of the pressure-coupling scheme. The Kelvin-Noether theorem is presented explicitly for each scheme, together with the Poincaré invariants for its hot particle trajectories. Extensions of Ertel's relation for the potential vorticity and for its gradient are also found in each case, as well as new expressions of cross helicity invariants.
description: 32 pages; no figures. To appear in Comm. Math. Sci
Letter from Stanislaw Jakubowski to Emmett L. Bennett Jr., June 20, 1958
Creators: name: Jakubowski, Stanislaw
Publisher: name: The University of Texas at Austin
Year: 1958
Subjects: Emmett L. Bennett, Jr. Collection
Emmett L. Bennett, Jr. Collection--Correspondence
Emmett L. Bennett, Jr. Collection--Correspondence--Stanislaw Jakubowski

description: Jakubowski thanks Bennet for his letter and suggestions, promising to send more of his work in the future.
A mini-max problem for self-adjoint Toeplitz matrices
Creators: name: Courtney, Dennis
name: Sarason, Donald
Publisher: name: arXiv
Year: 2010
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 15B05, 42A70, 30E05, 30H10, 47A20, 47A57, 47B35

description: We study a minimum problem and associated maximum problem for finite, complex, self-adjoint Toeplitz matrices. If $A$ is such a matrix, of size $(N+1)$-by-$(N+1)$, we identify $A$ with the operator it represents on $P_N$, the space of complex polynomials of degrees at most $N$, with the usual Hilbert space structure it inherits as a subspace of $L^2$ of the unit circle. The operator $A$ is the compression to $P_N$ of the multiplication operator on $L^2$ induced by any function in $L^{\infty}$ whose Fourier coefficients of indices between $-N$ and $N$ match the matrix entries of $A$. Our minimum problem is to minimize the $L^{\infty}$ norm of such inducers. We show there is a unique one of minimum norm, and we describe it. The associated maximum problem asks for the maximum of the ratio of the preceding minimum to the operator norm. That problem remains largely open. We present some suggestive numerical evidence.
description: 14 pages, new references added, typos fixed
On solvable spherical subgroups of semisimple algebraic groups (report version)
Creators: name: Avdeev, Roman
Publisher: name: arXiv
Year: 2010
Subjects: subject: Group Theory (math.GR)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 20G07, 14M27

description: A new approach to classification of solvable spherical subgroups of semisimple algebraic groups is considered. This approach is completely different from the known approach by D. Luna and provides an explicit classification.
description: 4 pages, 1 figure. These are the notes of the talk given by the author at the Oberwolfach workshop "Algebraic groups" (April 18th - 24th, 2010); to appear in "Oberwolfach Reports"; v2: small corrections
Letter from Stanislaw Jakubowski to Emmett L. Bennett Jr., April 20, 1960
Creators: name: Jakubowski, Stanislaw
Publisher: name: The University of Texas at Austin
Year: 1960
Subjects: Emmett L. Bennett, Jr. Collection
Emmett L. Bennett, Jr. Collection--Correspondence
Emmett L. Bennett, Jr. Collection--Correspondence--Stanislaw Jakubowski
Linear A
Linear B

description: Jakubowski provides his case for reading Linear A and B signs based on their figurative meanings and acrophonic sounds.
A Generalized Vertex Operator Algebra for Heisenberg Intertwiners
Creators: name: Tuite, Michael P.
name: Zuevsky, Alexander
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider the extension of the Heisenberg vertex operator algebra by all its irreducible modules. We give an elementary construction for the intertwining vertex operators and show that they satisfy a complex parametrized generalized vertex operator algebra. We illustrate some of our results with the example of integral lattice vertex operator superalgebras.
description: 22 pages, minor corrections made, to appear in the Journal of Pure and Applied Algebra
A modification of the method of characteristics: a new class of multidimensional partially integrable nonlinear systems
Creators: name: Zenchuk, A. I.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We represent an algorithm reducing a big class of systems of ($M+1$)-dimensional nonlinear partial differential equations (PDEs) to the systems of $M$-dimensional first order PDEs. Thus, we integrate the original system with respect to only one independent variable reducing its dimensionality by one. For this reason we call such systems partially integrable ones. In particular, if M=1, then $M$-dimensional PDEs become ODEs. Our method may be referred to as a generalization of the method of characteristics. Possible application in hydrodynamics is discussed.
description: 15 pages
Flying microwave qubits with nearly perfect transfer efficiency
Creators: name: Korotkov, Alexander N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a procedure for transferring the state a microwave qubit via a transmission line from one resonator to another resonator, with a theoretical efficiency arbitrarily close to 100%. The emission and capture of the microwave energy is performed using tunable couplers, whose transmission coefficients vary in time. Using the superconducting phase qubit technology and tunable couplers with maximum coupling of 100 MHz, the procedure with theoretical efficiency $η=0.999$ requires a duration of about 400 ns (excluding propagation time) and an ON/OFF ratio of 45. The procedure may also be used for a quantum state transfer with optical photons.
description: 11 pages
Asplenium cyrtosorum K. W. Xu, Li Bing Zhang & W. B. Liao
Creators: name: Xu, Ke-Wang
name: Lu, Ngan Thi
name: Zhou, Xin-Mao
name: Zhang, Liang
name: Zhang, Li-Bing
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Polypodiopsida
Polypodiales
Aspleniaceae
Asplenium
Asplenium cyrtosorum

description: Asplenium cyrtosorum K.W.Xu, Li Bing Zhang & W.B.Liao (Figure 3) Type:— CHINA. Yunnan: Pu’er City, Pu’er Sun River National Forest Park, elev. ca. 1200 m, 22°34’51.74”N, 101°6’31.57”E, 20 April 2017, Ke-Wang Xu & Lei Jiang XKW318 (holotype SYS!). Additional specimens examined:— CHINA. Yunnan: Pu’er City, Pu’er Sun River National Park, elev. ca. 1200 m, 22°34’51.74”N, 101°6’31.57”E, 18 May 2016, Lei Jiang & Hua Peng JL00363 (SYS). VIETNAM. Quang Binh: Minh Hoa district, Dan Hoa Commune, Chalo village, 600 m, 17°40’26.43”N, 105°46’39.19”E, 13 November 2014, Li-Bing Zhang, Liang Zhang & Ngan Thi Lu 7440 (MO); Dak Nong: Dak Glong district, Dak P’lao Commune, Ta Dung Nature Reserve, 1200–1400 m, 11°52’17.98”N, 108°1’36.98”E, 13 November 2006, Su-Kong Wu et al. WP1557 (MO-5959537). Distribution:—Currently only known from southwestern China and Vietnam. Ecology:—This species grows in broad-leaved forests. It is a lithophyte on rocks in humid and shady conditions. Note:—One population of 40–50 individuals was first found in China and it was classified as Critically Endangered according to the IUCN guidelines (Xu et al. 2018a). Two small populations were found in Vietnam, in Quang Binh and Dak Nong, respectively. Morphologically, plants from Vietnam are more robust than those from China.
description: Published as part of Xu, Ke-Wang, Lu, Ngan Thi, Zhou, Xin-Mao, Zhang, Liang & Zhang, Li-Bing, 2021, Asplenium quangbinhense sp. nov. and three new records of Asplenium (Aspleniaceae) from Vietnam, pp. 113-120 in Phytotaxa 521 (2) on pages 116-117, DOI: 10.11646/phytotaxa.521.2.5, http://zenodo.org/record/5533597
description: {"references": ["Xu, K. - W., Jiang, L., Zhang, L. - B. & Liao, W. - B. (2018 a) Asplenium cyrtosorum (Aspleniaceae), a new fern from Yunnan, China. Phytotaxa 351: 176 - 180. https: // doi. org / 10.11646 / phytotaxa. 351.2.6"]}
Letter from M. Jameson to Emmett L. Bennett Jr., January 28, 1958
Creators: name: Jameson, M
Publisher: name: The University of Texas at Austin
Year: 1958
Subjects: Emmett L. Bennett, Jr. Collection
Emmett L. Bennett, Jr. Collection--Correspondence
Emmett L. Bennett, Jr. Collection--Correspondence--M. Jameson
TAPA

description: Jameson provides a paragraph of his work and discusses whether publication from TAPA is probable.
A bioinformatic workflow for analyzing whole genomes in rare Mendelian disease
Creators: name: Couse, Madeline Hazel
Publisher: name: University of British Columbia
Year: 2017

description: The vast majority of the human genome (~98%) is non-coding. A symphony of non-coding sequences resides in the genome, interacting with genes and the environment to tune gene expression. Functional non-coding sequences include enhancers, silencers, promoters, non-coding RNA and insulators. Variation in these non-coding sequences can cause disease, yet clinical sequencing in patients with rare Mendelian disease currently focuses mostly on variants in the ~2% of the genome that codes for protein. Indeed, variants in protein-coding genes that can explain a phenotype are identified in less than half of patients with suspected genetic disease by whole exome sequencing (WES). With the dramatic reduction in the cost of whole genome sequencing (WGS), development of algorithms to detect variants longer than 50 bp (structural variants, SVs), and improved annotation of the non-coding genome, it is now possible to interrogate the entire spectrum of genetic variation to identify a pathogenic mutation. A comprehensive pipeline is needed to analyze non-coding variation and structural variation from WGS. In this thesis, I developed and benchmarked a bioinformatics workflow to detect pathogenic non-coding SNVs/indels and pathogenic SVs, and applied this workflow to unsolved patients with rare Mendelian disorders. The pipeline detected ~80-90% of deletions, ~90% of duplications, ~65% inversions, and ~50% of insertions in a simulated genome and the NA12878 genome. The pipeline captured the majority of known pathogenic non-coding single nucleotide variant (SNVs) and insertion deletions (indels), and selectively prioritized a spiked-in known pathogenic non-coding SNV. Several interesting candidate variants were detected in patients, but none could be convincingly implicated as pathogenic. The bioinformatic workflow described in this thesis is complementary to sequencing pipelines that analyze only protein-coding variants from whole genomes. Application of this workflow to larger cohorts of patients with rare Mendelian diseases should identify pathogenic non-coding variants and SVs to increase diagnostic yield of clinical sequencing studies, assist management of genetic diseases, and contribute knowledge of novel pathogenic variants to the scientific community.
Letter from M. Jameson to Emmett L. Bennett Jr., March 5, 1958
Creators: name: Jameson, M
Publisher: name: The University of Texas at Austin
Year: 1958
Subjects: Emmett L. Bennett, Jr. Collection
Emmett L. Bennett, Jr. Collection--Correspondence
Emmett L. Bennett, Jr. Collection--Correspondence--M. Jameson

description: Jameson apologizes for missing Bennett's talk the week before and provides his contribution for a bibliography.
A purposeful infection : lovesickness and gender in Heliodorus
Creators: name: Simpson, Breanna E. M.
Publisher: name: University of British Columbia
Year: 2017

description: This thesis is the first to undertake a detailed examination of lovesickness within Heliodorus’ Aethiopika. The ancient Greek novels share a central narrative pattern of a young, beautiful, heterosexual couple falling in love, then surviving a series of adventures, kidnappings, and separations, before ending in their reunion and marriage. This pattern is enhanced by the presence of lovesickness, which is identified as a medical ailment which afflicts many individuals within the novels. Building on the work of David Konstan, Katharine Haynes, and Peter Toohey regarding the nature of lovesickness, gender, and desire in the novels, a clear model of lovesickness emerges. This affliction is triggered by eye contact, combines physical and psychological symptoms, alters behaviours, and requires a marriage and sexual consummation to be fully resolved. This pattern is uniform across the victims of lovesickness, regardless of their age, gender, social, or ethnic background, or whether their desire is reciprocated or one-sided. Chapter one identifies and tests the proposed model of lovesickness, and chapter two discusses how lovesickness affects men, focusing on how it influences the central male protagonist’s performance of traditionally masculine behaviours like andreia and sophrosyne. The third chapter focuses on how lovesickness affects women, including the role of beauty in triggering lovesickness, and the juxtaposition of reciprocal and one-sided cases of lovesickness in the female characters in the Aethiopika. The fourth and final chapter looks at cases of lovesickness in the novels that fall outside of the central couple, including rival men, frustrated women, and cases of same-sex desire. Drawing on examples from several other Greek novels, this discussion illuminates the importance of the central couple’s romance within the narrative. This thesis concludes that lovesickness serves as a narrative device that privileges the model of a young, beautiful, heterosexual couple over other cases of lovesickness, desire, or love within the ancient Greek novel. Lovesickness is shown to influence constructions of identity and performances of particular gendered behaviours, aiding the central couple in distinguishing themselves from their rivals and antagonists as conforming to desirable norms of cultural, social, and sexual behaviour.
Turbo-Entzerrung: Implementierungsaspekte für Software Defined Radios
Creators: name: Schwall, Michael
Publisher: name: Karlsruhe
Year: 2015
Subjects: Turbo-Entzerrung
Software Defined Radio
Festkomma
Parallelisierung

description: Damit mobile Funkkommunikation mit SDR-basierten Funksystemen zuverlässig mithilfe eines Turbo-Entzerrers in Echtzeit durchgeführt werden kann, muss dessen Implementierung an die Hardware eines SDRs angepasst werden. Die Arbeit befasst sich mit den Implementierungsaspekten der Turbo-Entzerrung für SDRs und analysiert die Parallelisierbarkeit und die Festkommaaspekte des Verfahrens im Detail. Die Ergebnisse können auf ein breites Spektrum von Prozessoren oder Logiken angewendet werden.
Hybrid quantum system based on rare earth doped crystals = Hybrides Quantensystem basierend auf Kristallen mit Seltenerddotierung
Creators: name: Probst, Sebastian
Publisher: name: Karlsruhe
Year: 2015
Subjects: spin ensemble
hybrid
microwave resonator
rare earth
quantum memory

description: Hybrid quantum circuits interfacing rare earth spin ensembles with microwave resonators are a promising approach for application as coherent quantum memory and frequency converter. In this thesis, hybrid circuits based on Er and Nd ions doped into Y2SiO5 and YAlO3 crystals are investigated by optical and on-chip microwave spectroscopy. Coherent strong coupling between the microwave resonator and spin ensemble as well as a multimode memory for weak coherent microwave pulses are demonstrated.
Reconciling the analytic QCD with the ITEP operator product expansion philosophy
Creators: name: Cvetic, Gorazd
name: Koegerler, Reinhart
name: Valenzuela, Cristian
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Analytic QCD models are those versions of QCD in which the running coupling parameter a(Q^2) has the same analytic properties as the spacelike physical quantities, i.e., no singularities in the complex Q^2 plane except on the timelike semiaxis. In such models, a(Q^2) usually differs from its perturbative analog by power terms ~(Lambda^2/Q^2)^k for large momenta, introducing thus nonperturbative terms in spacelike physical quantities whose origin is the UV regime. Consequently, it contradicts the ITEP-OPE philosophy which states that such terms can come only from the IR regimes. We investigate whether it is possible to construct analytic QCD models which respect the ITEP-OPE philosophy and, at the same time, reproduce not just the high-energy QCD observables, but also the low-energy ones, among them the well-measured semihadronic tau decay ratio.
description: 33 pages, 13 figures, 7 tables; grammatical corrections in the text; to appear in PRD
Asplenium pseudopraemorsum Ching & Wang 1964
Creators: name: Xu, Ke-Wang
name: Lu, Ngan Thi
name: Zhou, Xin-Mao
name: Zhang, Liang
name: Zhang, Li-Bing
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Polypodiopsida
Polypodiales
Aspleniaceae
Asplenium
Asplenium pseudopraemorsum

description: Asplenium pseudopraemorsum Ching & Wang (Figure 5) Type:— CHINA. Hainan: Ling-shui Hsien, Seven Finger Mountain (?Baoting, Qixianling), 13 January 1934, C. Wang et al. 36520 (holotype, PE-01768892!). Additional specimens examined:— CHINA. Hainan: Baoting, Qixianling, elev. ca. 500 m, 26 December 2008, X. C . Zhang et al. 5516 (PE-01857945!); same locality, 13 December 2012, In-Chun Hwang cn0070 (PE-01962734); same locality, 800 m, 18°42′43.15′′N, 109°42′8.76′′E, February 2017, K. W . Xu 264 (SYS). VIETNAM. Khanh Hoa: Hon Ba Nature Reserve, stream ‎behind Yersins house, 1300–1400 m, 24 October 2015, Li-Bing Zhang, Xin-Mao Zhou, Thien Tam Luong, Minh Tri Dang & Bich Ha Duong 8732 (CDBI, MO, PHH). Distribution:—(Hainan Island) China and Vietnam. Ecology:—In Vietnam, Asplenium pseudopraemorsum grows in damp broad-leaved forests as a lithophyte. Note:— Asplenium pseudopraemorsum was originally described based on a single collection from Hainan island in southern China (Ching & Wang 1964). It is morphologically most similar to A. aethiopicum (Burman f. 1768: 32) Becherer (1935: 23), but the former is 40–45 cm tall, pinnae 3–3.5 cm long, pinna stalks 2–4 mm long, and lamina and rachis without reddish brown fimbriate scales, whereas the latter is 25–45 cm tall, pinnae 2.5–4.5 cm long and subsessile, and lamina and rachis with reddish brown fimbriate scales. This species was previously thought to be endemic to Hainan Island with very narrow distribution in China, and it appears to be very rare in Vietnam.
description: Published as part of Xu, Ke-Wang, Lu, Ngan Thi, Zhou, Xin-Mao, Zhang, Liang & Zhang, Li-Bing, 2021, Asplenium quangbinhense sp. nov. and three new records of Asplenium (Aspleniaceae) from Vietnam, pp. 113-120 in Phytotaxa 521 (2) on page 119, DOI: 10.11646/phytotaxa.521.2.5, http://zenodo.org/record/5533597
description: {"references": ["Ching, R. - C. & Wang, C. - H. (1964) Additional materials for the pteridophytic flora of Hainan. Acta Phytotaxonomica Sinica 9: 345 - 373.", "Becherer, A. (1935) Note sur deux especes D' Asplenium. Candollea 6: 22 - 24."]}
Relationship between High-Energy Absorption Cross Section and Strong Gravitational Lensing for Black Hole
Creators: name: Wei, Shao-Wen
name: Liu, Yu-Xiao
name: Guo, Heng
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we obtain a relation between the high-energy absorption cross section and the strong gravitational lensing for a static and spherically symmetric black hole. It provides us a possible way to measure the high-energy absorption cross section for a black hole from strong gravitational lensing through astronomical observation. More importantly, it allows us to compute the total energy emission rate for high-energy particles emitted from the black hole acting as a gravitational lens. It could tell us the range of the frequency, among which the black hole emits the most of its energy and the gravitational waves are most likely to be observed. We also apply it to the Janis-Newman-Winicour solution. The results suggest that we can test the cosmic censorship hypothesis through the observation of gravitational lensing by the weakly naked singularities acting as gravitational lenses.
description: 6 pages, 2 figures, improved version, accepted for publication as a Rapid Communication in Physical Review D
The influence of the Lande $g$-factor in the classical general relativistic description of atomic and subatomic systems
Creators: name: Pachon, Leonardo A.
name: Dubeibe, F. L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the electromagnetic and gravitational fields of the proton and electron in terms of the Einstenian gravity via the introduction of an arbitrary Lande $g$-factor in the Kerr-Newman solution. We show that at length scales of the order of the reduced Compton wavelength, corrections from different values of the $g$-factor are not negligible and discuss the presence of general relativistic effects in highly ionized heavy atoms. On the other hand, since at the Compton-wavelength scale the gravitational field becomes spin dominated rather than mass dominated, we also point out the necessity of including angular momentum as a source of corrections to Newtonian gravity in the quantum description of gravity at this scale.
description: 11 pages, 2 figures
Supplementary material to 'Lava flow hazard assessment on Bioko Island (Equatorial Guinea) - A probabilistic approach using Q-LavHA'
Creators: name: Brauner, Jacob
name: Chevrel, M. O.
name: Walter, T. R.
name: Ela, O. A. N.
name: Sealing, C. R.
name: Vanderkluysen, L.
Publisher: name: Zenodo
Year: 2025

description: Supplementary material to 'Lava flow hazard assessment on Bioko Island (Equatorial Guinea) - A probabilistic approach using Q-LavHA'

Authors:Jacob Brauner (1), Magdalena O. Chevrel (2,3,4), Thomas R. Walter (5), Oscar A.N. Ela (6), Christine R. Sealing (1;7), Loÿc Vanderkluysen (1)

Affiliations:(1) Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104 (USA)(2) Université Clermont Auvergne, Laboratoire Magmas et Volcans, CNRS, IRD, OPGC, 6 Avenue Blaise Pascal, 63178 Aubière, France.(3) Observatoire volcanologique du Piton de la Fournaise, Institut de physique du globe de Paris, 97418, La Plaine des Cafres, France(4) Université Paris Cité, Institut de physique du globe de Paris, CNRS, 75005 Paris, France(5) Deutsches GeoForschungsZentrum GFZ, Telegrafenberg, 14473 Potsdam (Germany)(6) Universidad Nacional de Guinea Ecuatorial, Malabo, Equatorial Guinea(7) Research Corporation of the University of Hawaii, Honolulu, Hawaii (USA)

Corresponding Author: JB, email: jb4356@drexel.edu

 

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Please find the file descriptions in the provided documentation file.
title:  Venezuela, migrazione e rifugio: i numeri dell’esodo
Creators: name: Battistessa , Diego
Publisher: name: RomaTrE-Press
Year: 2019

description: La crescente complessità politica e socio-economica nella quale versa la Repubblica Bolivariana del Venezuela ha portato al deteriora-mento dei servizi e delle condizioni di vita della popolazione che vive all’interno del paese. A partire dal 2015 si è assistito allo sviluppo di una migrazione massiva, che in soli 4 anni ha fatto registrare la cifra record di 4 milioni di cittadini venezuelani che, secondo l’Alto Commissariato delle Nazioni Unite per i Rifugiati, si trovano fuori dal paese.
description: Democrazia e Sicurezza – 2018, n. 4
Thermofield dynamics and twisted Poincaré symmetry on Moyal space-time
Creators: name: Balachandran, A. P.
name: Govindarajan, T. R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: On Moyal space-time, one can implement twisted Poincaré symmetry with the resultant modification of symmetrization and anti-symmetrization postulates for bosons and fermions. We develop the thermofield approach of Umezawa and Takahashi on such a spacetime preserving the twisted Poincaré symmetry of the underlying quantum field theory(qft). Implications of this twisted Poincaré symmetry for qft's at finite temperature are pointed out.
description: 11 pages, References added, Journal version
Development of advanced control strategies for high performance shake table tests
Creators: name: Lin, Jian-Yuan
Publisher: name: University of British Columbia
Year: 2017

description: Shake table test provides a feasible solution for evaluating structural performances in earthquake engineering. It can test structural system in real time. However, high fidelity shake table control remains a challenging issue due to several difficulties, such as hydraulic actuator nonlinearity and the control-structure interaction (CSI) effect. Conventional shake table control employs linear controllers such as proportional-integral-derivative (PID) or loop-shaping controller to regulate the actuator’s movement. However, it is difficult to tune a linear controller to accurately regulate the shake table when the payload and the hydraulic system are nonlinear. These challenges become more problematic when the payload mass is large relative to that of the table. Moreover, it is difficult to track a high frequency reference signal using a linear controller. The main objectives of this study are to illustrate the implementation of hierarchical control and to improve the performance and robustness of shake table test. This thesis consists of three parts. First, the system identification procedure was used to investigate the dynamic characteristics of a hydraulic shake table at the University of British Columbia. The results of the system identification were used to build a reliable simulation model of the hydraulic shake table system. Second, the developed system identification model was used to develop different low-level controllers to regulate the actuator’s movement. Third, advanced high-level control algorithms were implemented to increase tracking performance and control robustness. One nonlinear control algorithm named sliding mode control (SMC) and another optimal control algorithm named model predictive control (MPC) were presented in this thesis. The performance of the newly developed controllers was compared to that of the state-of-the-art linear controllers. The results show that the newly proposed hierarchical control architecture and the advanced high-level controller developed in this thesis can improve the tracking performance and robustness of shake table test.
On the Throughput Cost of Physical Layer Security in Decentralized Wireless Networks
Creators: name: Zhou, Xiangyun
name: Ganti, Radha Krishna
name: Andrews, Jeffrey G.
name: Hjørungnes, Are
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper studies the throughput of large-scale decentralized wireless networks with physical layer security constraints. In particular, we are interested in the question of how much throughput needs to be sacrificed for achieving a certain level of security. We consider random networks where the legitimate nodes and the eavesdroppers are distributed according to independent two-dimensional Poisson point processes. The transmission capacity framework is used to characterize the area spectral efficiency of secure transmissions with constraints on both the quality of service (QoS) and the level of security. This framework illustrates the dependence of the network throughput on key system parameters, such as the densities of legitimate nodes and eavesdroppers, as well as the QoS and security constraints. One important finding is that the throughput cost of achieving a moderate level of security is quite low, while throughput must be significantly sacrificed to realize a highly secure network. We also study the use of a secrecy guard zone, which is shown to give a significant improvement on the throughput of networks with high security requirements.
description: Accepted for publication in IEEE Transactions on Wireless Communications
Band Structure and Optical Absorption in Multilayer Armchair Graphene Nanoribbons: A Pariser-Parr-Pople Model Study
Creators: name: Gundra, Kondayya
name: Shukla, Alok
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using the tight binding and Pariser-Parr-Pople (PPP) model Hamiltonians, we study the electronic structure and optical response of multilayer armchair graphene nanoribbons (AGNRs), both with and without a gate bias. In particular, the influence of the number of layers ($n$), and the strength of the electric field applied perpendicular to layers, for different types of edge alignments, is explored on their electro-optical properties. As a function of increasing $n$, the energy gap initially decreases, eventually saturating for large $n$. The intensity of the linear optical absorption in these systems also increases with increasing $n$, and depends crucially on the polarization direction of the incident light, and the type of the edge alignment. This provides an efficient way of determining the nature of the edge alignment, and $n$, in the experiments. In the presence of a gate bias, the intensity of optical absorption behaves in a nontrivial way. The absorption becomes more intense for the large fields in narrow ribbons exhibiting a red shift of the band gap with the increasing field strength, while in broad ribbons exhibiting a blue shift, the absorption becomes weaker. However, for smaller electric fields, the absorption intensity exhibits more complicated behavior with respect to the field strength. Thus, the effect of the gate bias on optical absorption intensity in multilayer AGNRs is in sharp contrast to the bilayer graphene, which exhibits only enhancement of the absorption intensity with the increasing electric field.
description: 12 pages, 15 figures (included)
title:  Violenza istituzionale e modelli maschili nell’analisi dei men’s studies
Creators: name: Cintioli  ,  Eleonora
Publisher: name: RomaTrE-Press
Year: 2019

description: Gli uomini, soprattutto i giovani, sono i principali autori (e vittime) di violenza. Basandosi sui dati forniti dagli studi sugli uomini, il contributo esamina i fattori che potrebbero favorire l'adozione di atteggiamenti e comportamenti violenti da parte degli uomini. In particolare, discute il ruolo che le istituzioni omosociali, come le forze armate e la polizia, svolgono nella costruzione e nella perpetrazione della mascolinità egemonica.
description: Democrazia e Sicurezza – 2018, n. 4
Computational investigation of the impact of potential AT2R polymorphism on small molecule binding
Creators: name: Sharma, Bhanu
name: Rehman, Md. Tabish
name: AlAjmi, Mohamed F.
name: Shahwan, Moayad
name: Hussain, Tahir
name: Jaiswal, Varun
name: Khan, Mohd Azhar
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: For more than a century, the renin-angiotensin system (RAS) has been acknowledged for playing a crucial part in the physiological control of arterial pressure, as well as sodium and fluid balance. It is now generally acknowledged that one of the receptor of RAS system i.e. angiotensin type 2 receptor (AT2R) functions as a repair system during pathophysiologic circumstances and performs a significant protective role. Efforts have been made previously to design suitable agonist and antagonist molecules to potentially modulate AT2R. One of the agonists and antagonists, named C21 and EMA401, has been studied in a number of pathological conditions. Additionally, a wide panel of single nucleotide polymorphisms (SNPs) has been reported for AT2R, which might potentially affect the efficacy of these molecules. Therefore, computational investigations have been carried out to analyze all the SNPs (1151) reported in NCBI to find potential SNPs affecting the active site of AT2R, as this domain is still unexplored. Structures of these polymorphic forms were modeled, and in silico drug interaction studies with C21 and EMA401 were carried out. The two mutants (rs868939201 and rs1042852794) that significantly affect the binding affinity as that of the wild type were subjected to molecular dynamics simulations. Our analysis of native and mutant AT2R and their complexes with C21 and EMA401 indicated that the occurrence of these mutations affects the conformation of the protein and has affected the binding of these ligand molecules. The study’s findings will aid in the development of better, more versatile medications in the near future, and also in vitro and in vivo studies might be planned in accordance with recent findings. Communicated by Ramaswamy H. Sarma
On the $Λ$CDM Universe in $f(G)$ gravity
Creators: name: Myrzakulov, Ratbay
name: Sáez-Gómez, Diego
name: Tureanu, Anca
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the context of the so-called Gauss-Bonnet gravity, where the gravitational action includes function of the Gauss-Bonnet invariant, we study cosmological solutions, especially the well-known $Λ$CDM model. It is shown that the dark energy contribution and even the inflationary epoch can be explained in the frame of this kind of theories with no need of any other kind of component. Other cosmological solutions are constructed and the rich properties that this kind of theories provide are explored.
description: 9 pages. Version to be published in Gen. Rel. Grav., conclusions improved and references added
Odè Ayé conectado: (des)articulações do movimento afro-alagoano no ciberespaço
Creators: name: Araujo, Ronaldo
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 440712
subject: Social policy
classificationCode: 460105
subject: Applications in social sciences and education
classificationCode: 460807
subject: Information visualisation
classificationCode: 461002
subject: Human information behaviour
classificationCode: 460508
subject: Information retrieval and web search

description: ARAUJO, R. F.. Odè Ayé conectado: (des)articulações do movimento afro-alagoano no ciberespaço. In: Encontro Nacional de História: 'História, Racismo e Religiosidades Negras', 2012, Maceio. Anais Eletrônicos do IV Encontro Nacional de História: "História, Racismo e Religiosidades Negras". Maceio: CPDHis, 2012. v. 4. p. 143-153.O presente artigo discute os movimentos sociais no ciberespaço e explora algumas categorias da manifestação dos movimentos por meio do ativismo online, e tem por objetivo analisar o movimento social negro do Estado de Alagoas no ciberespaço a partir de seus blogs temáticos e webrings. Apresentam-se os resultados parciais de uma pesquisa-ação, neste momento, com abordagem quantitativa descritiva tendo como procedimento metodológico, o mapeamento dos blogs e sua análise a partir da abordagem das redes sociais na busca de melhor compreensão do contexto (data de criação, periodicidade de atualização, interatividade) e conteúdo (categorização tipológica e identificação de recursos colaborativos) de produção do movimento afroalagoano. A blogosfera analisada revelou-se de baixa conectividade após análise de sua configuração em rede. A categoria ‘blogs culturais’, relacionada às manifestações da cultura negra através da música, arte e dança, teve maior representatividade.
Precision computation of the kaon bag parameter
Creators: name: Durr, S.
name: Fodor, Z.
name: Hoelbling, C.
name: Katz, S. D.
name: Krieg, S.
name: Kurth, T.
name: Lellouch, L.
name: Lippert, T.
name: McNeile, C.
name: Portelli, A.
name: Szabo, K. K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Indirect CP violation in K \rightarrow ππ decays plays a central role in constraining the flavor structure of the Standard Model (SM) and in the search for new physics. For many years the leading uncertainty in the SM prediction of this phenomenon was the one associated with the nonperturbative strong interaction dynamics in this process. Here we present a fully controlled lattice QCD calculation of these effects, which are described by the neutral kaon mixing parameter B_K . We use a two step HEX smeared clover-improved Wilson action, with four lattice spacings from a\approx0.054 fm to a\approx0.093 fm and pion masses at and even below the physical value. Nonperturbative renormalization is performed in the RI-MOM scheme, where we find that operator mixing induced by chiral symmetry breaking is very small. Using fully nonperturbative continuum running, we obtain our main result B_K^{RI}(3.5GeV)=0.531(6)_{stat}(2)_{sys}. A perturbative 2-loop conversion yields B_K^{MSbar-NDR}(2GeV)=0.564(6)_{stat}(3)_{sys}(6)_{PT}, which is in good agreement with current results from fits to experimental data.
description: 10 pages, 7 figures. v2: Added one reference and one figure, replaced 2 figures for better readability and updated ensembles, conclusions unchanged. Final, published version
Extension of Wirtinger's Calculus to Reproducing Kernel Hilbert Spaces and the Complex Kernel LMS
Creators: name: Bouboulis, Pantelis
name: Theodoridis, Sergios
Publisher: name: arXiv
Year: 2010
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Over the last decade, kernel methods for nonlinear processing have successfully been used in the machine learning community. The primary mathematical tool employed in these methods is the notion of the Reproducing Kernel Hilbert Space. However, so far, the emphasis has been on batch techniques. It is only recently, that online techniques have been considered in the context of adaptive signal processing tasks. Moreover, these efforts have only been focussed on real valued data sequences. To the best of our knowledge, no adaptive kernel-based strategy has been developed, so far, for complex valued signals. Furthermore, although the real reproducing kernels are used in an increasing number of machine learning problems, complex kernels have not, yet, been used, in spite of their potential interest in applications that deal with complex signals, with Communications being a typical example. In this paper, we present a general framework to attack the problem of adaptive filtering of complex signals, using either real reproducing kernels, taking advantage of a technique called \textit{complexification} of real RKHSs, or complex reproducing kernels, highlighting the use of the complex gaussian kernel. In order to derive gradients of operators that need to be defined on the associated complex RKHSs, we employ the powerful tool of Wirtinger's Calculus, which has recently attracted attention in the signal processing community. To this end, in this paper, the notion of Wirtinger's calculus is extended, for the first time, to include complex RKHSs and use it to derive several realizations of the Complex Kernel Least-Mean-Square (CKLMS) algorithm. Experiments verify that the CKLMS offers significant performance improvements over several linear and nonlinear algorithms, when dealing with nonlinearities.
description: 15 pages (double column), preprint of article accepted in IEEE Trans. Sig. Proc
Short Range Correlations and the EMC Effect
Creators: name: Weinstein, L. B.
name: Piasetzky, E.
name: Higinbotham, D. W.
name: Gomez, J.
name: Hen, O.
name: Shneor, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: This paper shows quantitatively that the magnitude of the EMC effect measured in electron deep inelastic scattering (DIS) at intermediate $x_B$, $0.35\le x_B\le 0.7$, is linearly related to the Short Range Correlation (SRC) scaling factor obtained from electron inclusive scattering at $x_B\ge 1.$. The observed phenomenological relationship is used to extract the ratio of the deuteron to the free $pn$ pair cross sections, the DIS cross section for a free neutron, and $F_2^n/F_2^p$, the ratio of the free neutron to free proton structure functions. We speculate that the observed correlation is because both the EMC effect and SRC are dominated by the high virtuality (high momentum) nucleons in the nucleus.
description: 5 pages, 2 figures, minor changes for PRL acceptance, reference 12 corrected