cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum effects near the Cauchy horizon of a Reissner-Nordstrom black hole
Creators: name: Sela, Orr
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a massless, minimally-coupled quantum scalar field on a Reissner-Nordstrom black hole background, and we study the leading asymptotic behavior of the expectation value of the stress energy tensor operator $\langle\hat{T}_{μν}\rangle_{ren}$ and of $\langle\hatΦ^{2}\rangle_{ren}$ near the inner horizon, in both the Unruh and the Hartle-Hawking quantum states. We find that the coefficients of the expected leading-order divergences of these expectation values vanish, indicating that the modifications of the classical geometry due to quantum vacuum effects might be weaker than expected. In addition, we calculate the leading-order divergences of $\langle\hat{T}_{μν}\rangle_{ren}$ and of $\langle\hatΦ^{2}\rangle_{ren}$ in the Boulware state near the outer (event) horizon, and we obtain analytical expressions that correspond to previous numerical results.
description: 23 pages, 1 figure; references and appendix added
Stitching the Yukawa Quilt
Creators: name: Ramond, P.
name: Roberts, R. G.
name: Ross, G. G.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We develop a systematic analysis of quark mass matrices which, starting with the measured values of quark masses and mixing angles, allows for a model independent search for all possible (symmetric or hermitian) mass matrices having texture zeroes at the unification scale. A survey of all six and five texture zero structures yields a total of five possible solutions which may be distinguished by improved measurements of the CKM matrix elements and which may readily be extended to include lepton masses with the Georgi-Jarlskog texture. The solutions naturally suggest a parameterisation for the mass matrices based on a perturbative expansion and we present some speculations concerning the origin of such structure.
description: 30 pages, RAL-93-010 UFIFT-93-06
Computational Mining of Meso-Scale Physics From High-Energy X-Ray Data Sets
Creators: name: Siddharth  Maddali
Publisher: name: Carnegie Mellon University
Year: 2016
Subjects: subject: 20399 Classical Physics not elsewhere classified
subject: FOS: Physical sciences

description: Migration of grain boundaries in an idealized, well-ordered polycrystalline sample is an often-studied phenomenon in microstructural materials science. It is the subject of many imaging experiments in two dimensions and simulations in two and three dimensions, the collective knowledge of which has given us many insights into behavior of specific materials. This thesis describes the characterization of the grain boundaries in a specially prepared polycrystalline aggregate of high-purity iron with a bodycentered cubic lattice whose microstructure was imaged non-destructively in three dimensions with near-field high-energy diffraction microscopy (nf-HEDM) which uses synchrotron X-rays as a probe. The sample was imaged using nf-HEDM before and after a cycle of annealing in order to activate boundary migration for a short interval of time. Also described are the development of computational techniques for denoising grain boundary images in three dimensions as well as a scheme to solve the inverse problem of computing the dynamical parameters influencing boundary migration from the observed boundary geometries and transport. The two snapshots of the full three-dimensional grain boundary network were used to quantify the geometry and transport of individual grains and track their progress through the annealing. A study of the influence of grain boundary curvature on boundary velocity revealed a weak correlation for a large fraction of the boundaries.
Problems of Contemporary Society: How Terrorism Shaped Today’s Britain
Creators: name: Ferreira, Joana
Publisher: name: E-Journal of Intercultural Studies
Year: 2021

description: The transition period between the 20th and the 21st century in Great Britain was defined by the challenging duty of tackling the rising threat of terrorism. Terrorism in Great Britain has been a component of its history and also an outcome of internal conflicts throughout several historical periods. However, Britain’s growing power and influence around the globe has gradually caught the attention of new opposing forces whose origins extend beyond its borders. The Britain of today is under threat of two conflicting ideologies: white supremacy and Islamic extremism. Although these two groups tend to employ similar strategies, their contrasting goals inevitably clash against one another and their interference in Britain’s national security has resulted in multiple casualties and plunged the country into unwavering fear, flaring up nationalist ideals, media manipulation, political cynicism, and opportunism. The purpose of this academic paper is to analyze the modern definition of terrorism, the past and the present history of terrorist acts in Great Britain, the characteristics that distinguish and tie white supremacy and Islamic extremism together, the increasing popularity of far-right movements and conspiracy theories as well as the link to the rampant hate crimes and revenge attacks in Britain. The last section will explore how Brexit and the Irish border became once again the cause of uncertainty regarding the IRA in Northern Ireland.
description: E-Journal of Intercultural Studies, Vol. 1 N.º 9 (2021)
Determination of phytotoxicity and cytogenotoxicity due to exposure to particles originating from sugarcane burning using test systems Lactuca sativa L. and Allium cepa L.
Creators: name: Vieira, Cinthia
name: Nicola, Patricia
name: Bortoleti, Kyria
Publisher: name: figshare
Year: 2022
Subjects: Environmental Science

description: Sugarcane straw burning generates particulate matter with complex composition resulting in atmosphere pollution. Sugarcane straw sugarcane burning particles (PSSB) contain several chemical compounds that were previously identified to be associated with carcinogenic and mutagenic processes. The aim of the present study was to obtain PSSB under laboratory conditions and subsequently determine phyto- and cytogenotoxicity of these particles using Lactuca sativa L. and Allium cepa L. bioassays. Seeds of lettuce var. Cinderela and onion cv. Vale-Ouro IPA-11 were germinated in Petri dishes containing different concentrations of PSSB (25 mg/mL, 50 mg/mL, 100 mg/mL, 200 mg/mL and 300 mg/mL) and control group for 72 hr. Seed germination of lettuce was inhibited by PSSB, in a concentration-dependent manner, accompanied by decreased root growth, suggesting phytotoxic effects. Further, the reduction of mitotic index and high number of chromosomal alterations in onion of meristematics cells indicated a cytogenotoxic action attributed to PSSB. Although the chemical composition of PSSB in question has not been determined, their phyto- and cytogenotoxic effects may be linked to the possible presence of polycyclic aromatic hydrocarbons (PAHs), which are identified in the literature as the main constituents of particulate matter resulting from the burning of sugarcane straw, in addition to having biological effects that result in mutations and cancer. Data demonstrated that the use of plants bioassays might be an important tool for biomonitoring air quality.
OCFL: An application-independent file layout for repositories
Creators: name: Metz, Rosalyn
name: Hankinson, Andrew
name: Warner, Simeon
name: Jefferies, Neil
name: Morley, Julian
name: Woods, Andrew
Publisher: name: Zenodo
Year: 2019
Subjects: Storage
Preservation
Filesystem
Object store
Versioning

description: The Oxford Common File Layout (OCFL, https://ocfl.io/) specification describes an open and application-independent approach to the storage of digital objects in a structured, transparent, and predictable manner. It is designed to promote sustainable long-term access and management of content within digital repositories. Repository content — that is, the digital files and metadata that a repository might manage — is typically much more durable than the repository software application. By providing a specification for file layout, the OCFL is an attempt at reducing, or even eliminating, the need for time consuming and risky data migrations associated with software transitions. The resulting structure supports deployment and replication using filesystems and object store technologies, and provides a basis for shared tooling. The OCFL specification builds on experience with the BagIt specification and the Moab design to support strong fixity checks and to provide a simple structure to efficiently capture versions of object contents so that all previous states of an object may be recovered and examined. This presentation will focus on the motivations and vision for the OCFL, explain key choices in the specification, and describe the status of implementation efforts.
Boosting Away Singularities from Conformal String Backgrounds
Creators: name: Gasperini, M.
name: Maharana, J.
name: Veneziano, G.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Generalizing our previous work, we show how $O(d,d)$ transformations can be used to "boost away" in new dimensions the physical singularities that occur generically in cosmological and/or black-hole string backgrounds. As an example, we show how a recent model by Nappi and Witten can be made singularity-free via $O(3,3)$ boosts involving a fifth dimension.
description: 11 pages, CERN-TH.6634/92
Stable convergence of inner functions
Creators: name: Ivrii, Oleg
Publisher: name: arXiv
Year: 2018
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30J05, 30F45, 30C80, 30H20

description: Let $\mathscr J$ be the set of inner functions whose derivative lies in the Nevanlinna class. In this paper, we discuss a natural topology on $\mathscr J$ where $F_n \to F$ if the critical structures of $F_n$ converge to the critical structure of $F$. We show that this occurs precisely when the critical structures of the $F_n$ are uniformly concentrated on Korenblum stars. The proof uses Liouville's correspondence between holomorphic self-maps of the unit disk and solutions of the Gauss curvature equation. Building on the works of Korenblum and Roberts, we show that this topology also governs the behaviour of invariant subspaces of a weighted Bergman space which are generated by a single inner function.
description: 45 pages
Galactic Dark Matter Population as the Source of Neutrino Masses
Creators: name: Davoudiasl, Hooman
name: Mohlabeng, Gopolang
name: Sullivan, Matthew
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We propose that neutrino masses can be zero $in ~vacuo$ and may be generated by the local distribution of dark matter through a feeble long range scalar force. We discuss potential phenomenological constraints and implications of this framework. Our model typically implies that the relic neutrino background left over from the Big Bang is mostly absent in our Galactic neighborhood. Hence, a positive detection signal from future proposed experiments, such as PTOLEMY, could in principle falsify our scenario.
description: 5 pages, 1 figure, version published in PRD rapid communications
Literature as a Social Mirror and a Cultural Tool For Protest
Creators: name: Torres, Isabel Da Conceição Pontes
Publisher: name: E-Journal of Intercultural Studies
Year: 2021

description: In a letter to Karl Marx, Friedrich Engels confessed that he learned more from Honoré de Balzac about the French society than from all the books of all the historians, economists and statisticians of the time put together. Literary art has always presenteditself as a social mirror, exposing the reflection of the society in which the writer was inserted, but to what actual extent can Literature reveal and interpret human behavior and society? To what extent can it expose, condemn, and be the engine of its transformation?As Bakhtin's conception argues, the social function of literature as a space for critical reflection, makes, particularly the works that bring the tendency of realistic theory, raise the analysis and weighting of the subject in relation to the society in which they areinserted. This, alongside with the obvious fact that literature is part of the culture of a given society and, therefore, it reveals social patterns that have been considered relevant, and which will help to decipher its mutations, progress and ways of manifesting culture, reveals the value of Literature as an instrument of the social sciences since it allows us to understand what the primary factors of a society are and how they affect it. In this paper I will explain in more detail how literature does then reflect the environment the author lives in and, therefore, its society, to the point where you can identify political, social, economic and several other factors, and use it as a tool to expose and protest many injustices, both if narrating the present or the past, as it is never too late to give a voice to the wronged.
description: E-Journal of Intercultural Studies, Vol. 1 N.º 9 (2021)
The Protean IR: Developing a versatile and decentralized repository through an API
Creators: name: Pope, Kathryn
name: Luna Lucero, Brian
Publisher: name: Zenodo
Year: 2019
Subjects: Institutional repositories
digital collections
APIs

description: Columbia University Libraries recently released a new version of Columbia's institutional repository, Academic Commons. As we worked on the update, users asked for the ability to curate collections of related works. In response, the project team considered how we might implement some type of "collections" and we soon found ourselves questioning the nature of the repository. Did our assigned categories reflect the thinking of depositors and researchers? Could we be both a campus-wide repository and a showcase for the curated works of specific groups or projects? These questions led us to redefine the repository. Rather than a website for distributing scholarly works we now see it as a body of digital documents and records describing them that can be indexed, searched and retrieved in multiple contexts. This conclusion represents a paradigm shift in our thinking about the repository. This new vision of decentralized access is made possible through an API that serves records from Academic Commons based on user queries. Since the introduction of the API, we have worked with on-campus partners to envision how we can implement it to present curated selections of repository content on department and project websites.
Systematic mischaracterization of exoplanetary system dynamical histories from a model degeneracy near mean-motion resonance
Creators: name: Boisvert, John H.
name: Nelson, Benjamin E.
name: Steffen, Jason H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: There is a degeneracy in the radial velocity exoplanet signal between a single planet on an eccentric orbit and a two-planet system with a period ratio of 2:1. This degeneracy could lead to misunderstandings of the dynamical histories of planetary systems as well as measurements of planetary abundances if the correct architecture is not established. We constrain the rate of mischaracterization by analyzing a sample of 60 non-transiting, radial velocity systems orbiting main sequence stars from the NASA Exoplanet Archive (NASA Archive) using a new Bayesian model comparison pipeline. We find that 15 systems (25% of our sample) show compelling evidence for the two-planet case with a confidence level of 95%.
description: 4 pages, 6 figures, and a machine-readable table
Success Story 4. Mapping Standards in the Realm of Self-healing Properties [Project: SHINTO; Expert: Valter Loll]
Creators: name: Quattrocchi, Gabriele
name: Giuffrida, Maria
Publisher: name: Zenodo
Year: 2024

description: SHINTO applied to the standardisation booster service to get support in connecting the SHINTO management and researchers with the right stakeholders in the standardisation scene (standardisation organisations, technical committees, peer experts). The objective of the project was to gain insights into and investigate the standardisation landscape (relevant existing standards) in the new field of technology, assist the standardisation organisation to evaluate the need for new standards.
The speed of gravitational waves and power-law solutions in a scalar-tensor model
Creators: name: Granda, L. N.
name: Jimenez, D. F.
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: One of the most relevant solutions in any cosmological model concerning the evolution of the universe is the power-law solution. For the scalar-tensor model of dark energy with kinetic and Gauss Bonnet couplings, it is shown that we can conserve the power-law solution and at the same time meet the recent observational bound on the speed of gravitational waves. In the FRW background the anomalous contribution to the speed of gravitational waves, coming from the kinetic and Gauss-Bonnet couplings, cancel each other for power-law solutions. It is shown that by simple restriction on the model parameters we can achieve a non-time-dependent cancellation of the defect in the velocity of the gravitational waves. The model can realize the cosmic expansion with contributions from the kinetic and Gauss-Bonnet couplings of the order of ${\cal O}(1)$ to the dark energy density parameter. The results are valid on the homogeneous FRW background and the limitations of the approach are discussed.
description: Discussion about matter effect is added, version as appear in Astropart. Phys. 103 (2018) 115-121
Observation of two critical points linked to the high field phase B in CeCu2Si2
Creators: name: Weickert, Franziska
name: Gegenwart, Philipp
name: Geibel, Christoph
name: Assmus, Wolf
name: Steglich, Frank
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present thermal expansion and magnetostriction measurements on a CeCu2Si2 single crystal of A/S-type up to 17.9T magnetic field applied along the crystallographic a-direction (Delta L ll a ll H) and down to 0.015K temperature. We identify clear thermodynamic anomalies at the superconducting transition T_c and at two second order transitions T_A,B into ordered phases A and B. Our measurements establish for the first time the boundary of phase B at high field and low temperature. No evidence for additional high field phases above B is found up to the maximum field. We speculate based on our experimental results that i) phase B is similar to phase A of spin-density wave type and ii) the first order phase transition between A and B is caused by Fermi surface reconstruction. We furthermore identify a new quantum critical point at H_c ~ 17T, where T_B is suppresssed to zero, and a bicritical point at (0.35K, 7.0T), where phase lines T_A(H) and T_B(H) meet.
Sharp estimates of the spherical heat kernel
Creators: name: Nowak, Adam
name: Sjögren, Peter
name: Szarek, Tomasz Z.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 35K08 (Primary) 60J65 (Secondary)

description: We prove sharp two-sided global estimates for the heat kernel associated with a Euclidean sphere of arbitrary dimension. This solves a long-standing open problem.
description: 9 pages, to appear in J. Math. Pures Appl. (9)
Gravity model in the Korean highway
Creators: name: Jung, Woo-Sung
name: Wang, Fengzhong
name: Stanley, H. Eugene
Publisher: name: arXiv
Year: 2007
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We investigate the traffic flows of the Korean highway system, which contains both public and private transportation information. We find that the traffic flow T(ij) between city i and j forms a gravity model, the metaphor of physical gravity as described in Newton's law of gravity, P(i)P(j)/r(ij)^2, where P(i) represents the population of city i and r(ij) the distance between cities i and j. It is also shown that the highway network has a heavy tail even though the road network is a rather uniform and homogeneous one. Compared to the highway network, air and public ground transportation establish inhomogeneous systems and have power-law behaviors.
description: 13 pages
Antibiotic susceptibility and virulence profiling of endemic X. fastidiosa subsp. fastidiosa isolates from Costa Rica
Creators: name: Rodriguez-Murillo Neysa
name: Zúñiga-Pereira Ana Mariel
name: Chacón-Díaz Carlos
Publisher: name: Zenodo
Year: 2019

description: Xylella fastidiosa subsp. fatidiosa is endemic in Costa Rica. Although the bacteria has great potential for disease and it is widespread throughout the country, a common feature is that symptoms of host infected plants tend to be asymptomatic or in worst scenarios show mild symptoms as reported for “crespera disease” in coffee. Another trait within this population is that isolates have shown broad genetic diversity, based on different typing techniques including MLST. Our recent efforts have focused on phenotypic characterization of isolated strains. We tested antibiotic susceptibility of X. fastidiosa subsp. fastidiosa to tetracycline, streptomycin, gentamicin, chloramphenicol, ciprofloxacin, and penicillin. Minimal Inhibition Concentration (MIC) (mg/ml) were generated using Etest® assay, a quantitative technique that has been used previously in slow growing bacteria including X. fastidiosa, with reproducible results, a difficult task to achieve using other susceptibility determination techniques. Results show an overall susceptibility of X. fastidiosa to most of the antibiotic tested; however, differences in MICs within isolates for each antibiotic should not be overlooked. To evaluate if endemic X. fastidiosa subsp. fastidiosa population is capable of infecting and causing sever disease in Nerium oleander as seen for X. fastidiosa subsp. pauca (ST53) also present in Costa Rica. Several isolates of X. fastidiosa subsp. fastidiosa representing different ST types, were assayed in a virulence test using Nerium oleander, 8 months after inoculation none of the tested isolates have induced evident symptoms of disease, bacteria were barely detected near the inoculation site after 6 months post inoculation, monitoring is still an ongoing task. This research was financially supported by funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 635646: POnTE (Pest Organisms Threatening Europe) and grant agreement No 727987: XF-ACTORS (Xylella fastidiosa active containment through a multidisciplinary oriented research strategy).
Next-to-next-to-leading order $N$-jettiness soft function for $tW$ production
Creators: name: Li, Hai Tao
name: Wang, Jian
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the $N$-jettiness soft function for $tW$ production up to next-to-next-to-leading order in QCD, which is an important ingredient of the $N$-jettiness subtraction method for predicting the differential cross sections of massive coloured particle productions. The divergent parts of the results have been checked using the renormalization group equations controlled by the soft anomalous dimension.
description: 14 pages, 3 figures, published version in PLB
Mission 2: Enhance and develop partnerships with global and local organisations to maximise the value of water research
Creators: name: Martin-Ortega, Julia
name: Hopson, Susannah
Publisher: name: Zenodo
Year: 2024

description: This presentation is a water@leeds Mission 2 (enhance and develop partnerships with gloabl and local organisations to maximise the value of water research) update regarding Mission successes over the past year, as they relate to water@leeds KPIs. It also contains some information about our plans for the coming year.
Asymptotically optimal multistage tests of simple hypotheses
Creators: name: Bartroff, Jay
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62L10 (Primary); 91A20 (Secondary)

description: A family of variable stage size multistage tests of simple hypotheses is described, based on efficient multistage sampling procedures. Using a loss function that is a linear combination of sampling costs and error probabilities, these tests are shown to minimize the integrated risk to second order as the costs per stage and per observation approach zero. A numerical study shows significant improvement over group sequential tests in a binomial testing problem.
description: Published in at http://dx.doi.org/10.1214/009053607000000235 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Stability of the spiral spin liquid in MnSc$_2$S$_4$
Creators: name: Iqbal, Yasir
name: Müller, Tobias
name: Jeschke, Harald O.
name: Thomale, Ronny
name: Reuther, Johannes
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the stability of the spiral spin liquid phase in MnSc$_2$S$_4$ against thermal and quantum fluctuations as well as against perturbing effects of longer-range interactions. Employing $ab~initio$ density functional theory (DFT) calculations we propose a realistic Hamiltonian for MnSc$_2$S$_4$, featuring second ($J_2$) and third $(J_3)$ neighbor Heisenberg interactions on the diamond lattice that are considerably larger than previously assumed. We argue that the combination of strong $J_2$ and $J_3$ couplings reproduces the correct magnetic Bragg peak position measured experimentally. Calculating the spin-structure factor within the pseudofermion functional-renormalization group technique we find that close to the magnetic phase transition the sizable $J_3$ couplings induce a strong spiral selection effect, in agreement with experiments. With increasing temperature the spiral selection becomes weaker such that in a window around three to five times the ordering temperature an approximate spiral spin liquid is realized in MnSc$_2$S$_4$.
description: 11 pages, 10 figures, 1 table. Published version
Multiscalar amplitudes to all orders in perturbation theory
Creators: name: Argyres, E. N.
name: Kleiss, Ronald H. P.
name: Papadopoulos, Costas G.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A method for calculating loop amplitudes at the multiboson threshold is presented, based on Feynman-diagram techniques. We explicitly calculate the one-loop amplitudes in both $ϕ^4$-symmetric and broken symmetry cases, using dimensional regularization. We argue that, to all orders in the perturbation expansion, the unitarity-violating behaviour of the tree-order amplitudes persists.
description: 7 pages, Latex, CERN-TH.6852/93
Computational Image Analysis Techniques for Super-resolution Localization Microscopy
Creators: name: Kuan-Chieh Jackie Chen
Publisher: name: Carnegie Mellon University
Year: 2015
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering

description: Super-resolution microscopy techniques, which overcome the di raction limit of optical microscopy, are revolutionizing biological research by providing the ability to localize proteins within cells at nanometer resolution. Super-resolution localization microscopy (SRLM) is one of such techniques. It achieves nanometer resolution by randomly activating separate uorophores and computationally determining their locations. While discoveries of cellular structures at nanometer resolution made recently demonstrated its potential, SRLM still faces several key technological challenges in image analysis. To overcome these challenges, we developed computational tools for analyzing and enhancing SRLM images to enable quantitative characterization and dynamic visualization of cellular processes. One of the computational tools we developed is an image quality assessment method, which directly quantifies the accuracy or precision of the geometry or structure of the SRLM image objects. Another computational tool we developed is an SRLM image segmentation method, which identifies the boundaries of SRLM image objects by kernel density-based method. We utilize correlative uorescence and atomic force microscopy images to characterize and validate the accuracy of the segmentation method. We have also developed a new data aggregation method under a sliding-window scheme, which improves the temporal resolution to enhance the capability of SRLM imaging of live cells. Together, these computational image analysis techniques enable fundamental extensions of SRLM, which will be essential for quantitative analysis and characterization of dynamic cellular processes.
Solid deuterium surface degradation at ultracold neutron sources
Creators: name: Anghel, A.
name: Bailey, T. L.
name: Bison, G.
name: Blau, B.
name: Broussard, L. J.
name: Clayton, S. M.
name: Cude-Woods, C.
name: Daum, M.
name: Hawari, A.
name: Hild, N.
name: Huffman, P.
name: Ito, T. M.
name: Kirch, K.
name: Korobkina, E.
name: Lauss, B.
name: Leung, K.
name: Lutz, E. M.
name: Makela, M.
name: Medlin, G.
name: Morris, C. L.
name: Pattie, R. W.
name: Ries, D.
name: Saunders, A.
name: Schmidt-Wellenburg, P.
name: Talanov, V.
name: Young, A. R.
name: Wehring, B.
name: White, C.
name: Wohlmuther, M.
name: Zsigmond, G.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Solid deuterium (sD_2) is used as an efficient converter to produce ultracold neutrons (UCN). It is known that the sD_2 must be sufficiently cold, of high purity and mostly in its ortho-state in order to guarantee long lifetimes of UCN in the solid from which they are extracted into vacuum. Also the UCN transparency of the bulk sD_2 material must be high because crystal inhomogeneities limit the mean free path for elastic scattering and reduce the extraction efficiency. Observations at the UCN sources at Paul Scherrer Institute and at Los Alamos National Laboratory consistently show a decrease of the UCN yield with time of operation after initial preparation or later treatment (`conditioning') of the sD_2. We show that, in addition to the quality of the bulk sD_2, the quality of its surface is essential. Our observations and simulations support the view that the surface is deteriorating due to a build-up of D_2 frost-layers under pulsed operation which leads to strong albedo reflections of UCN and subsequent loss. We report results of UCN yield measurements, temperature and pressure behavior of deuterium during source operation and conditioning, and UCN transport simulations. This, together with optical observations of sD_2 frost formation on initially transparent sD_2 in offline studies with pulsed heat input at the North Carolina State University UCN source results in a consistent description of the UCN yield decrease.
description: 15 pages, 22 figures, accepted by EPJ-A
Optimal Hypercontractivity for Fermi Fields and Related Non-Commutative Integration
Creators: name: Carlen, Eric
name: Lieb, Elliott
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Optimal hypercontractivity bounds for the fermion oscillator semigroup are obtained. These are the fermion analogs of the optimal hypercontractivity bounds for the boson oscillator semigroup obtained by Nelson. In the process, several results of independent interest in the theory of non-commutative integration are established. {}.
description: 18 p., princeton/ecel/7-12-92
Knife edge skimming for improved separation of molecular species by the deflector
Creators: name: Trippel, Sebastian
name: Johny, Melby
name: Kierspel, Thomas
name: Onvlee, Jolijn
name: Bieker, Helen
name: Ye, Hong
name: Mullins, Terry
name: Gumprecht, Lars
name: Długołęcki, Karol
name: Küpper, Jochen
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: A knife edge for shaping a molecular beam is described to improve the spatial separation of the species in a molecular beam by the electrostatic deflector. The spatial separation of different molecular species from each other as well as from atomic seed gas is improved. The column density of the selected molecular-beam part in the interaction zone, which corresponds to higher signal rates, was enhanced by a factor of 1.5, limited by the virtual source size of the molecular beam.
description: 3 pages, 2 figures
Classical capacity of quantum channels with general Markovian correlated noise
Creators: name: Datta, Nilanjana
name: Dorlas, Tony
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The classical capacity of a quantum channel with arbitrary Markovian correlated noise is evaluated. For the general case of a channel with long-term memory, which corresponds to a Markov chain which does not converge to equilibrium, the capacity is expressed in terms of the communicating classes of the Markov chain. For an irreducible and aperiodic Markov chain, the channel is forgetful, and one retrieves the known expression for the capacity.
On Convergence Properties of Shannon Entropy
Creators: name: Piera, Francisco J.
name: Parada, Patricio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Convergence properties of Shannon Entropy are studied. In the differential setting, it is shown that weak convergence of probability measures, or convergence in distribution, is not enough for convergence of the associated differential entropies. A general result for the desired differential entropy convergence is provided, taking into account both compactly and uncompactly supported densities. Convergence of differential entropy is also characterized in terms of the Kullback-Liebler discriminant for densities with fairly general supports, and it is shown that convergence in variation of probability measures guarantees such convergence under an appropriate boundedness condition on the densities involved. Results for the discrete setting are also provided, allowing for infinitely supported probability measures, by taking advantage of the equivalence between weak convergence and convergence in variation in this setting.
description: Submitted to IEEE Transactions on Information Theory
Computational Design and Evaluation Methods for Empowering Non-Experts in Digital Fabrication
Creators: name: Ulu, Nurcan Gecer
Publisher: name: Carnegie Mellon University
Year: 2018
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: Despite the increasing availability of personal fabrication hardware and services, the true potential of digital fabrication remains unrealized due to lack of computational techniques that can support 3D shape design by nonexperts. This work develops computational methods that address two key aspects of content creation:(1) Function-driven design synthesis, (2) Design assessment. For design synthesis, a generative shape modeling algorithm that facilitates automatic geometry synthesis and user-driven modification for nonexperts is introduced. A critical observation that arises from this study is that the most geometrical specifications are dictated by functional requirements. To support design by high-level functional prescriptions, a physics based shape optimization method for compliant coupling behavior design has been developed. In line with this idea, producing complex 3D surfaces from flat 2D sheets by exploiting the concept of buckling beams has also been explored. Effective design assessment, the second key aspect, becomes critical for problems in which computational solutions do not exist. For these problems, this work proposes crowdsourcing as a way to empower non-experts in esoteric design domains that traditionally require expertise and specialized knowledge.
title: ADCO, Cinquième cartulaire de Saint-Étienne de Dijon (1664), Cart. 28 (G 132), 258 folios, f. 00160
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Cinquième cartulaire de Saint-Étienne de Dijon (1664), Archives départementales de la Côte-d'Or, Cart. 28 (G 132), 258 folios, f. 00160, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cinquième cartulaire de Saint-Étienne de Dijon (1664), Archives départementales de la Côte-d'Or, Cart. 28 (G 132), 258 folios, f. 00160, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Nullification of multi-Higgs threshold amplitudes in the Standard Model
Creators: name: Argyres, E. N.
name: Kleiss, R.
name: Papadopoulos, C. G.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that nullification of all tree-order threshold amplitudes involving Higgs particles in the Standard Model occurs, provided that certain equations relating the masses of all existing elementary particles to the mass of the Higgs scalar are satisfied. The possible role of these relations in restoring the high-multiplicity unitarity and their phenomenological relevance are briefly discussed.
description: CERN-TH.6853/93, 9 pages, Latex
Constraining the microlensing effect on time delays with new time-delay prediction model in $H_{0}$ measurements
Creators: name: Chen, Geoff C. -F.
name: Chan, James H. H.
name: Bonvin, Vivien
name: Fassnacht, Christopher D.
name: Rojas, Karina
name: Millon, Martin
name: Courbin, Fred
name: Suyu, Sherry H.
name: Wong, Kenneth C.
name: Sluse, Dominique
name: Treu, Tommaso
name: Shajib, Anowar J.
name: Hsueh, Jen-Wei
name: Lagattuta, David J.
name: Koopmans, Leon V. E.
name: Vegetti, Simona
name: McKean, John P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Time-delay strong lensing provides a unique way to directly measure the Hubble constant ($H_{0}$). The precision of the $H_{0}$ measurement depends on the uncertainties in the time-delay measurements, the mass distribution of the main deflector(s), and the mass distribution along the line of sight. Tie and Kochanek (2018) have proposed a new microlensing effect on time delays based on differential magnification of the coherent accretion disc variability of the lensed quasar. If real, this effect could significantly broaden the uncertainty on the time delay measurements by up to $30\%$ for lens systems such as PG1115+080, which have relatively short time delays and monitoring over several different epochs. In this paper we develop a new technique that uses the time-delay ratios and simulated microlensing maps within a Bayesian framework in order to limit the allowed combinations of microlensing delays and thus to lessen the uncertainties due to the proposed effect. We show that, under the assumption of Tie and Kochanek (2018), the uncertainty on the time-delay distance ($D_{Δt}$, which is proportional to 1/$H_{0}$) of short time-delay ($\sim18$ days) lens, PG1115+080, increases from $\sim7\%$ to $\sim10\%$ by simultaneously fitting the three time-delay measurements from the three different datasets across twenty years, while in the case of long time-delay ($\sim90$ days) lens, the microlensing effect on time delays is negligible as the uncertainty on $D_{Δt}$ of RXJ1131-1231 only increases from $\sim2.5\%$ to $\sim2.6\%$.
All hands on deck: How aerial imagery can support inclusive participatory landscape decision-making
Creators: name: Huang, Yilin
Publisher: name: ETH Zurich
Year: 2023
Subjects: subject: Participatory mapping
subject: drones
subject: UAV (unmanned aerial vehicle)
subject: Spatial representation
subject: Environmental justice
subject: Participatory action research
subject: info:eu-repo/classification/ddc/320
subject: info:eu-repo/classification/ddc/600
subject: info:eu-repo/classification/ddc/500
subject: Political science
subject: FOS: Political science
subject: Technology (applied sciences)
subject: Natural sciences
subject: FOS: Natural sciences

description: Land-use management is crucial for reconciling competing ecological, social, and economic interests in the face of sustainability challenges such as climate change, food security, and biodiversity conservation. To ensure landscape management decisions are sustainable, resilient, and relevant for the community they impact, participatory landscape decision-making engages stakeholders from various sectors and prioritizes local involvement and knowledge. This study investigates how drone-captured aerial imagery can be used as boundary objects -- easily interpretable landscape representations -- to create a common understanding among diverse stakeholders. We examine the role of aerial imagery in legitimizing local knowledge during participatory landscape decision-making, and seek to identify the most readily interpretable type of aerial imagery for untrained observers, in our case, members of rural village councils in Laos. Employing Participatory Action Research (PAR), we visited 27 villages in Laos where we collected drone-captured images from various angles, printed the images in the field, and hosted focus groups with village council participants selected by village heads. Considering the effects of resolution and angle on image interpretzability, these focus group discussions aimed to identify the interpretability of three aerial images: the oblique and top-down nadir images, taken with the drone, and satellite images taken from Google Earth. We also asked participants how they would use the images during the decision-making process of recent landscape decisions that had affected their community. We found that while nadir images had the highest element identification rate, participants preferred the familiar angle the oblique image offered. Participant feedback indicated they would use different images for different purposes: nadir was useful for projects that involved whole-village planning due to its preservation of scale, while oblique images were most useful for self-localization, and for projects that require the imagination of local conditions in the context of the surrounding landscape. Overall, we found that aerial imagery can legitimize local knowledge for decision-making processes, bolstering land claims and supporting negotiations of fair compensation for land. We note that while there are technical limitations and ethical considerations, drone aerial imagery is a valuable asset for equitable multi-stakeholder landscape management dialogue.
POSSIBLE QUINTESSENCE-LIKE PSEUDOSCALAR DARK ENERGY EFFECTS ON 56FE NUCLEAR TRANSITION ENERGIES OBSERVED IN SUPERNOVA 1991T
Creators: name: Orlando, Robert D
Publisher: name: Purdue University Graduate School
Year: 2025
Subjects: classificationCode: 510601
subject: Nuclear physics
classificationCode: 510703
subject: Particle physics
classificationCode: 510701
subject: Astroparticle physics and particle cosmology
classificationCode: 510103
subject: Cosmology and extragalactic astronomy

description: Fitting the background-subtracted spectral data of SN 1991T indicates that the gamma rays emitted by the 56Fe nuclei are shifted to lower energies at the 3.2σ statistical level. The average energy shift of both the first and second excited states is found to be δE/E = 0.023±0.007 where the uncertainty is given at one standard deviation. Assuming this energy shift is constant as the universe evolves over time implies that δ ˙ E/E = (5.2±1.7)×10−10 yr−1. It is assumed that this energy shift is caused by a dynamical pseudoscalar field Q that acts as dark energy with a coupling to the nucleons of atoms. This interaction would cause an apparent variation in the mass of the pion, thereby shifting the gamma ray energies. To relate the energy deviation to the pion mass and Q, the excited 56Fe nucleus is modeled as a deformed rigid rotor and vibrating liquid drop. The implied pion mass variation, indicated by the observed energy deviations, is found to be δ ˙ m/m=−(2.2±0.7)×10−10 yr−1, modeling the nucleus as a deformed rigid rotor, and δ ˙ m/m=−(2.5±0.8)×10−10 yr−1, modeling the nucleus as a vibrating liquid drop. It can also be used to determine the value of ˙ Q, which corresponds to the term of the dark energy field that changes as the universe evolves. This quantity will depend on the free parameters α and p, which are the decay constant coefficient of the field and the power of the quintessence tracking potential, respectively. The maximum value of ˙ Q will result for α = 0.1 and p = 1. These values are ˙ Q = (1.07±0.35)×108 GeV/yr for the nucleus as a rigid rotor and ˙ Q = (1.22 ± 0.39) × 108 GeV/yr for the nucleus as a vibrating liquid drop. The measured values of the dark energy equation of state parameter determined by DESI observations of the BAO and complemented by Planck observations of the CMB and SNe indicate that there exists an allowed α–p parameter space. This implies that the fractional kinetic energy densities determined by ˙ Q are consistent with cosmological observations under the assumptions that are used throughout this work. Here upper limits are also presented to take into account the possibility that the observed energy deviations are caused by an unknown systematic error.
Revelações Estéticas Durante a Pandemia o Projeto Streetart Against Covid
Creators: name: Silva, Luísa
Publisher: name: E- Revista de Estudos Interculturais
Year: 2021

description: Após quase um ano de pandemia do Covid 19, e com o país de novo em confinamento, é o momento adequado para divulgar as intervenções de grafitti e street art, realizadas a partir de março de 2020. Tem por base a pesquisa elaborada para o projeto StreetArt Against Covid, do Centro de Estudos Interculturais (CEI) do ISCAP –P.PORTO, sobre as manifestações artísticas desenvolvidas no espaço público, durante os meses de pandemia. Neste artigo são apresentadas as intervenções mais relevantes, quer pela sua dimensão, quer pela profusão de obras de um só autor, cujas localizações abrangem as cidades do Porto, Matosinhos e V.N. de Gaia.
description: E- Revista de Estudos Interculturais , Vol. 1 N.º 9 (2021)