cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An unusually low density ultra-short period super-Earth and three mini-Neptunes around the old star TOI-561
Creators: name: Lacedelli, G.
name: Malavolta, L.
name: Borsato, L.
name: Piotto, G.
name: Nardiello, D.
name: Mortier, A.
name: Stalport, M.
name: Cameron, A. Collier
name: Poretti, E.
name: Buchhave, L. A.
name: López-Morales, M.
name: Nascimbeni, V.
name: Wilson, T. G.
name: Udry, S.
name: Latham, D. W.
name: Bonomo, A. S.
name: Damasso, M.
name: Dumusque, X.
name: Jenkins, J. M.
name: Lovis, C.
name: Rice, K.
name: Sasselov, D.
name: Winn, J. N.
name: Andreuzzi, G.
name: Cosentino, R.
name: Charbonneau, D.
name: Di Fabrizio, L.
name: Fiorenzano, A. F. Martinez
name: Ghedina, A.
name: Harutyunyan, A.
name: Lienhard, F.
name: Micela, G.
name: Molinari, E.
name: Pagano, I.
name: Pepe, F.
name: Phillips, D. F.
name: Pinamonti, M.
name: Ricker, G.
name: Scandariato, G.
name: Sozzetti, A.
name: Watson, C. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Based on HARPS-N radial velocities (RVs) and TESS photometry, we present a full characterisation of the planetary system orbiting the late G dwarf TOI-561. After the identification of three transiting candidates by TESS, we discovered two additional external planets from RV analysis. RVs cannot confirm the outer TESS transiting candidate, which would also make the system dynamically unstable. We demonstrate that the two transits initially associated with this candidate are instead due to single transits of the two planets discovered using RVs. The four planets orbiting TOI-561 include an ultra-short period (USP) super-Earth (TOI-561 b) with period $P_{\rm b} = 0.45$ d, mass $M_{\rm b} =1.59 \pm 0.36$ M$_\oplus$ and radius $R_{\rm b}=1.42 \pm 0.07$ R$_\oplus$, and three mini-Neptunes: TOI-561 c, with $P_{\rm c} = 10.78$ d, $M_{\rm c} = 5.40 \pm 0.98$ M$_\oplus$, $R_{\rm c}= 2.88 \pm 0.09$ R$_\oplus$; TOI-561 d, with $P_{\rm d} = 25.6$ d, $M_{\rm d} = 11.9 \pm 1.3$ M$_\oplus$, $R_{\rm d} = 2.53 \pm 0.13$ R$_\oplus$; and TOI-561 e, with $P_{\rm e} = 77.2$ d, $M_{\rm e} = 16.0 \pm 2.3$ M$_\oplus$, $R_{\rm e} = 2.67 \pm 0.11$ R$_\oplus$. Having a density of $3.0 \pm 0.8$ g cm$^{-3}$, TOI-561 b is the lowest density USP planet known to date. Our N-body simulations confirm the stability of the system and predict a strong, anti-correlated, long-term transit time variation signal between planets d and e. The unusual density of the inner super-Earth and the dynamical interactions between the outer planets make TOI-561 an interesting follow-up target.
description: 20 pages, 12 figures. Accepted for publication in MNRAS
title: Cruise Results : Southeast Area Monitoring and Assessment Program (SEAMAP) 2015 Winter Plankton Survey, NOAA Ship Gordon Gunter Cruise 15-01, 3 March – 2 April 2015
Creators: name: Bond, Pamela
Publisher: name: Southeast Fisheries Science Center (U.S.)
Year: 2015

description: The National Oceanic and Atmospheric Administration (NOAA) Ship Gordon Gunter departed Pascagoula, MS 3 March 2015 to initiate the Southeast Area Monitoring and Assessment Program (SEAMAP) Winter Plankton Survey in the northern Gulf of Mexico (GOM). The SEAMAP Program is a cooperative  State/Federal/University program designed to collect biological and environmental data from waters of the U.S. GOM. During the winter survey, plankton samples were collected from a systematic grid of stations to assess distribution, occurrence and abundance of the early life stages of a variety of species of fishes and invertebrates. The survey specifically targeted larvae of grouper, tilefish and other winter spawning species. A total of 113 stations were sampled in the northern GOM from Texas over to Florida during the 29 days at sea (Leg 1, 3 March–14 March and Leg 2, 17 March– 2April 2015).
A Thermodynamics Model for Mechanochemical Synthesis of Gold Nanoparticles: Implications for Solvent-free Nanoparticle Production
Creators: name: Yang, Lin
name: Moores, Audrey
name: Friščić, Tomislav
name: Provatas, Nikolas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Mechanochemistry is becoming an established method for the sustainable, solid-phase synthesis of scores of nano-materials and molecules, ranging from active pharmaceutical ingredients to materials for cleantech. Yet we are still lacking a good model to rationalize experimental observations and develop a mechanistic understanding of the factors at play during mechanically assisted, solid-phase nanoparticle synthesis. We propose herein a structural-phase-field-crystal (XPFC) model with a ballistic driving force to describe such a process, with the specific example of the growth of gold nanoparticles in a two component mixture. The reaction path is described in the context of free energy landscape of the model, and dynamical simulations are performed based on phenomenological model parameters closely corresponding to the experimental conditions, so as to draw conclusions on nanoparticle growth dynamics. It is shown that the ballistic term lowers the activation energy barrier of reaction, enabling the reaction in a temperature regime compatible with experimental observations. The model also explains the mechanism of precipitated grain size reduction that is consistent with experimental observations. Our simulation results afford novel mechanistic insights into mechanosynthesis with implications for nanaparticle production and beyond.
description: 47 pages, 11 figures
Cluster sum rules for three-body systems with angular-momentum dependent interactions
Creators: name: de Diego, R.
name: Garrido, E.
name: Jensen, A. S.
name: Fedorov, D. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We derive general expressions for non-energy weighted and energy-weighted cluster sum rules for systems of three charged particles. The interferences between pairs of particles are found to play a substantial role. The energy-weighted sum rule is usually determined by the kinetic energy operator, but we demonstrate that it has similar additional contributions from the angular momentum and parity dependence of two- and three-body potentials frequently used in three-body calculations. The importance of the different contributions is illustrated with the dipole excitations in $^6$He. The results are compared with the available experimental data.
description: 11 pages, 3 figures, 2 tables
Shear rheology of a dilute emulsion of ferrofluid droplets dispersed in a non-magnetizable carrier fluid under the influence of a uniform magnetic field
Creators: name: Capobianchi, Paolo
name: Lappa, Marcello
name: Oliveira, Mónica S. N.
name: Pinho, Fernando T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The effect of a spatially uniform magnetic field on the shear rheology of a dilute emulsion of monodispersed ferrofluid droplets, immersed in a non-magnetizable immiscible fluid, is investigated using direct numerical simulations. The direction of the applied magnetic field is normal to the shear flow direction. The droplets extra stress tensor arising from the presence of interfacial forces of magnetic nature is modeled on the basis of the seminal work of G. K. Batchelor, J. Fluid Mech., 41.3 (1970) under the assumptions of a linearly magnetizable ferrofluid phase and negligible inertia. The results show that even relatively small magnetic fields can have significant consequences on the rheological properties of the emulsion due to the magnetic forces that contribute to deform and orient the droplets towards the direction of the applied magnetic vector. In particular, we have observed an increase of the effective (bulk) viscosity and a reversal of the sign of the two normal stress differences with respect to the case without magnetic field for those conditions where the magnetic force prevails over the shearing force. Comparisons between the results of our model with a direct integration of the viscous stress have provided an indication of its reliability to predict the effective viscosity of the suspension. Moreover, this latter quantity has been found to behave as a monotonic increasing function of the applied magnetic field for constant shearing flows ("magneto-thickening" behaviour), which allowed us to infer a simple constitutive equation describing the emulsion viscosity.
description: Peer-reviewed version: Added new arguments throughout the whole manuscript. Revised arguments in Section 5.2. Addition of a new section dedicated to the comparison with previous theoretical models (Sect. 5.3)
title:  Quantitative Sustainable Design of Urban Tree Soil Cells for Stormwater Management
Creators: name: Wilson, Jamaya
Publisher: name: University of Kentucky Libraries
Year: 2023
Subjects: classificationCode: 2.1
subject: FOS: Civil engineering

description: Urban trees are critical assets to cities around the world. They act as a green infrastructure system to provide various environmental, economic and social benefits to their surrounding environments. However, the quality of life of urban trees is severely threatened by uncontrolled urbanization and climate change. The compaction of urban soils to meet the structural stability requirements for buildings and pavements directly restricts tree growth. Soil cells are green infrastructure placed in tree wells to transfer active and static loads to pavements. This allows for reduced soil compaction and increased tree root expansion. However, because the technology is still in its infancy stages, the potential global environmental impacts of its implementation are still unknown. This study uses the life cycle assessment (LCA) to quantify the environmental impacts of soil cells planned for tree plots on the University of Kentucky campus. The LCA assesses the project in five life cycle phases: materials extraction, transportation, construction, operation, end-of-life. The materials extraction and transportation phases were found to be the largest contributors to the total environmental impacts quantified within the LCA. Additionally, through sensitivity and uncertainty analyses, it was shown that transportation distance and mass of plastic should be targeted to reduce the system’s total environmental impacts, especially for the impact categories of ozone and fossil fuel depletion. Ultimately, this study can inform the sustainability of soil cells design and operation.
description: © 2023 JaMaya Wilson
Dimensional Reduction of Seiberg-Witten Monopole Equations, N=2 Noncommutative Supersymmetric Field Theories and Young Diagrams
Creators: name: Sako, Akifumi
name: Suzuki, Toshiya
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We investigate the Seiberg-Witten monopole equations on noncommutative(N.C.) R^4 at the large N.C. parameter limit, in terms of the equivariant cohomology. In other words, N}=2 supersymmetric U(1) gauge theories with hypermultiplet on N.C. R}^4 are studied. It is known that after topological twisting partition functions of N}>1 supersymmetric theories on N.C. R^2D are invariant under N.C.parameter shift, then the partition functions can be calculated by its dimensional reduction. At the large N.C. parameter limit, the Seiberg-Witten monopole equations are reduced to ADHM equations with the Dirac equation reduced to 0 dimension. The equations are equivalent to the dimensional reduction of non-Abelian U(N) Seiberg-Witten monopole equations in N -> \infty. The solutions of the equations are also interpreted as a configuration of brane anti-brane system. The theory has global symmetries under torus actions originated in space rotations and gauge symmetries. We investigate the Seiberg-Witten monopole equations reduced to 0 dimension and the fixed point equations of the torus actions. We show that the Dirac equation reduced to 0 dimension is trivial when the fixed point equations and the ADHM equations are satisfied. For finite N, it is known that the fixed points of the ADHM data are isolated and are classified by the Young diagrams. We give a new proof of this statement by solving the ADHM equations and the fixed point equations concretely and by giving graphical interpretations of the field components and these equations.
description: v2: 28+1 pages, 13 figures, appendix for convention added, references added, some descriptions improved, v3: eq.(113),(117) corrected, v4: 29+1 pages, minor corrections
Non-equilibrium evolution of Bose-Einstein condensate deformation in temporally controlled weak disorder
Creators: name: Radonjić, Milan
name: Pelster, Axel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a time-dependent extension of a perturbative mean-field approach to the dirty boson problem by considering how switching on and off a weak disorder potential affects the stationary state of an initially equilibrated Bose-Einstein condensate by the emergence of a disorder-induced condensate deformation. We find that in the switch on scenario the stationary condensate deformation turns out to be a sum of an equilibrium part, that actually corresponds to adiabatic switching on the disorder, and a dynamically-induced part, where the latter depends on the particular driving protocol. If the disorder is switched off afterwards, the resulting condensate deformation acquires an additional dynamically-induced part in the long-time limit, while the equilibrium part vanishes. We also present an appropriate generalization to inhomogeneous trapped condensates. Our results demonstrate that the condensate deformation represents an indicator of the generically non-equilibrium nature of steady states of a Bose gas in a temporally controlled weak disorder.
description: 18 pages, 5 figures, submission to SciPost
title: Cruise Results : Southeast Area Monitoring and Assessment Program (SEAMAP) 2014 Fall Plankton Survey, NOAA Ship Gordon Gunter Cruise GU-14-05, August 22 – September 30, 2014
Creators: name: Bond, Pamela
Publisher: name: Southeast Fisheries Science Center (U.S.)
Year: 2015

description: The National Oceanic and Atmospheric Administration (NOAA) Ship Gordon Gunter departed Pascagoula, MS on August 22, 2014 to initiate the Southeast Area Monitoring and Assessment Program (SEAMAP) Fall Ichthyoplankton Survey in the Gulf of Mexico (GOM). The SEAMAP Program is a cooperative  State/Federal/University program designed to collect biological and environmental data from waters of the U.S. GOM. During the fall survey, plankton samples are collected from a systematic grid of stations to assess distribution, occurrence and abundance of the early life stages of a variety of species of fishes and invertebrates. A total of 31 successful sea days were worked over two legs during the cruise: Leg I, August 22 – September 8; Leg II, September 18 – 30.
Surveying digital musical instrument use in active practice
Creators: name: Sullivan, John
name: Guastavino, Catherine
name: Wanderley, Marcelo M.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Neuroscience
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Digital musical instruments are frequently designed in research and experimental performance contexts but few are taken up into sustained use by active and professional musicians. To identify the needs of performers who use novel technologies in their practices, a survey of musicians was conducted that identified desirable qualities for instruments to be viable in active use, along with attributes for successful uptake and continued use of instruments based on frameworks of long and short term user engagement. The findings are presented as a set of design considerations towards the development of instruments intended for use by active and professional performers.
Evidence for an X-Ray Jet in DG Tau A?
Creators: name: Guedel, M.
name: Skinner, S. L.
name: Briggs, K. R.
name: Audard, M.
name: Arzner, K.
name: Telleschi, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present evidence for an X-ray jet in the T Tau star DG Tau A based on Chandra ACIS data. DG Tau A, a jet-driving classical T Tau star with a flat infrared spectrum, reveals an unusual X-ray spectrum that requires two thermal components with different intervening absorption column densities. The softer component shows a low temperature of T \approx 2.9 MK, and its absorption is compatible with the stellar optical extinction (hydrogen column density N_H \approx 5x10^21 cm^-2). In contrast, the harder component reveals a temperature (22 MK) characteristic for active T Tau stars but its emission is more strongly absorbed (N_H \approx 2.8x10^22 cm^-2). Furthermore, the high-resolution ACIS-S image reveals a weak excess of soft (0.5-2 keV) counts at distances of 2-4" from the star precisely along the optical jet, with a suggestive concentration at 4" where a bow-shock-like structure has previously been identified in optical line observations. The energy distribution of these photons is similar to those of the stellar soft component. We interpret the soft spectral component as originating from shocks at the base of the jet, with shock heating continuing out to a distance of at least 500 AU along the jet, whereas the hard component is most likely coronal/magnetospheric as in other young stellar systems.
description: Accepted for publication in ApJ Letters, 12 pages, 2 figures
Dust in the outskirts of M31 and M33
Creators: name: Zhang, Ruoyi
name: Yuan, Haibo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: M31 and M33 serve as ideal places to study distributions of dust in the outskirts of spiral galaxies. In this letter, using about 0.2 million stars selected from the LAMOST data and combining precise photometry and parallaxes from the Gaia DR2, we have constructed a two-dimensional foreground dust reddening map towards the M31 and M33 region ($111.2° {\le} gl {\le} 136.2°, -36.5° {\le} gb {\le} -16.5°$). The map has a typical spatial resolution of about 12 arc-minute and precision of 0.01 mag. The complex structure of dust clouds towards the M31 is revealed. By carefully removing the foreground extinction from the dust reddening map of Schlegel et al. (1998), we thus have obtained a residual map to study dust distributions in the outskirts of M31 and M33. A large amount of dust is detected in the M31 halo out to a distance of over 100 kpc. Dust in the M31 disk is found to extend out to about 2.5 times its optical radius, whose distribution is consistent with either an exponential disk of scale length of 7.2 kpc or two disks with scale length of 11.1 kpc within its optical radius and 18.3 kpc beyond its optical radius. Dust in the disk of M33 is also found to extend out to about 2.5 times its optical radius, its distribution beyond one optical radius is consistent with an exponential disk of scale length of 5.6 kpc. Our results provide new clues on the distributions and cycling of dust in galaxies.
description: 12 pages, 4 figures, published in ApJL (2020ApJ...905L..20R)
title: Dr. Hermann Hirzel-Seiler zum Andenken (19. August 1890 - 2. Januar 1961)
title: Gedenkfeier anlässlich der Bestattung, Freitag, den 6. Januar 1961 im Grossmünster in Zürich
titleType: Subtitle
Creators: name: Frick, Max
Publisher: name: Gedenkschriften-Verlag
Year: 1961
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Hirzel, Hermann
subject: Zürich
subject: Großmünster (Zürich)

description: Inhalt: Abdankungsansprache von Pfarrer Max Frick
Perturbation Theory in the Complex Plane: Exceptional Points and Where to Find Them
Creators: name: Marie, Antoine
name: Burton, Hugh G. A.
name: Loos, Pierre-François
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We explore the non-Hermitian extension of quantum chemistry in the complex plane and its link with perturbation theory. We observe that the physics of a quantum system is intimately connected to the position of complex-valued energy singularities, known as exceptional points. After presenting the fundamental concepts of non-Hermitian quantum chemistry in the complex plane, including the mean-field Hartree--Fock approximation and Rayleigh--Schrödinger perturbation theory, we provide a historical overview of the various research activities that have been performed on the physics of singularities. In particular, we highlight seminal work on the convergence behaviour of perturbative series obtained within Møller--Plesset perturbation theory, and its links with quantum phase transitions. We also discuss several resummation techniques (such as Padé and quadratic approximants) that can improve the overall accuracy of the Møller--Plesset perturbative series in both convergent and divergent cases. Each of these points is illustrated using the Hubbard dimer at half filling, which proves to be a versatile model for understanding the subtlety of analytically-continued perturbation theory in the complex plane.
description: 22 page, 14 figures, 4 tables
Inference of Markov models from trajectories via Large Deviations at Level 2.5 with applications to random walks in disordered media
Creators: name: Monthus, Cecile
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The inference of Markov models from data on stochastic dynamical trajectories over the large time-window $T$ is revisited via the Large Deviations at Level 2.5 for the time-empirical density and the time-empirical flows. The goal is to obtain the large deviations properties for the probability distribution of the inferred Markov parameters in order to characterize their possible fluctuations around the true Markov parameters for large $T$. The explicit rate functions are given for several settings, namely discrete-time Markov chains, continuous-time Markov jump processes, and diffusion processes in dimension $d$. Applications to various models of random walks in disordered media are described, where the goal is to infer the quenched disordered variables defining a given disordered sample.
description: v3=final version (25 pages)
A dark jet dominates the power output of the stellar black hole Cygnus X-1
Creators: name: Gallo, E.
name: Fender, R.
name: Kaiser, C.
name: Russell, D.
name: Morganti, R.
name: Oosterloo, T.
name: Heinz, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Accreting black holes are thought to emit the bulk of their power in the X-ray band by releasing the gravitational potential energy of the infalling matter. At the same time, they are capable of producing highly collimated jets of energy and particles flowing out of the system with relativistic velocities. Here we show that the 10 solar mass black hole in the X-ray binary Cygnus X-1 is surrounded by a large-scale (about 5 pc in diameter) ring-like structure that appears to be inflated by the inner radio jet. We estimate that in order to sustain the observed emission of the ring, the jet of Cygnus X-1 has to carry a kinetic power that can be as high as the bolometric X-ray luminosity of the binary system. This result may imply that low-luminosity stellar mass black holes as a whole dissipate the bulk of the liberated accretion power in the form of `dark', radiatively inefficient relativistic outflows, rather than locally in the X-ray emitting inflow.
description: Nature, August 11 2005 issue; 3 colour figures
Vector Potential and Surface Magnetic Field in Magnetoelectric Antiferromagnetic Materials
Creators: name: Jiang, Zeyu
name: West, Damien
name: Zhang, Shengbai
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A general formula for the average vector potential of bulk periodic systems is proposed and shown to set the boundary conditions at magnetic interfaces. For antiferromagnetic materials, the study reveals a unique relation between the macroscopic potential and the orientation-dependent magnetic quadrupole, as a result of the different crystalline and magnetic symmetries. In particular, at surfaces and interfaces of a truncated bulk without inversion and time-reversal symmetries, the average vector potential exhibits a discontinuity, which results in an interfacial magnetic field. In general, however, due to the surface and interface electronic and atomic relaxations, additional magnetization may result. For the experimentally-observed magnetoelectric antiferromagnets, in particular, our symmetry analysis suggest that the relaxation effects could well be a system response to the presence of such a potential discontinuity.
description: 15 pages, 3 figures, submitted to Physical Review B
Density dependent equations of state for metal, nonmetal, and transition states for compressed mercury fluid
Creators: name: Ghatee, M. H.
name: Bahadori, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Analytical equations of state are presented for fluid mercury in metal, nonmetal, and in metal-nonmetal transition states. Equations of state for metal and nonmetal states are simple in form but the complexities of transition state leads to a complex fourth-order equation. The interatomic potential function used to describe the metal state have a hard repulsive wall, and that of nonmetal state is the same as potential function of non-polar fluid with induced dipole intermolecular interaction. Metal-nonmetal transition occurs in the liquid density range 11-8 g/cm3, and a density dependent interaction potential which gradually changes from a pure metal interaction to a nonmetal interaction, on going from metal state to nonmetal state in the transition region, is used. Well-depth and the position of potential minimum are presented as temperature dependent quantities; their calculated values for the metal state are typically within 5.0% and 0.33% of the experimental value, respectively. The calculated well-depth for nonmetal state is smaller than the experimental value indicating the effect of high pressure PVT data used, which pushes a pair of mercury atom further together into the repulsive side. In the transition region, calculated well-depths are 2-3 order of magnitudes larger than for the metal state, and contain a sharp rising edge and a steep falling having a singularity characteristic of phase transition.
description: 20 pages, 8 Figures
An Improved upper limit on the decay K^+ -> pi^+ mu^+ e^-
Creators: name: Sher, Aleksey
name: Appel, R.
name: Atoyan, G. S.
name: Bassalleck, B.
name: Bergman, D. R.
name: Cheung, N.
name: Dhawan, S.
name: Do, H.
name: Egger, J.
name: Eilerts, S.
name: Harold, W.
name: Issakov, V. V.
name: Kaspar, H.
name: Kraus, D. E.
name: Lazarus, D. M.
name: Lichard, P.
name: Lowe, J.
name: Lozano, J.
name: Ma, H.
name: Majid, W.
name: Pislak, S.
name: Poblaguev, A. A.
name: Rehak, P.
name: Sher, A.
name: Thompson, J. A.
name: Truoel, P.
name: Zeller, M. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Based on results of a search for the lepton-family-number-violating decay $K^+ \to π^+μ^+ e^-$ with data collected by experiment E865 at the Alternating Gradient Synchrotron of Brookhaven National Laboratory, we place an upper limit on the branching ratio at $2.1 \times 10^{-11}$ (90% C.L.). Combining the results with earlier E865 data and those of a previous experiment, E777, an upper limit on the branching ratio of $1.3 \times 10^{-11}$ (90% C.L.) is obtained.
description: v2: 13 pages, submitted to the Phys. Rev. D v3: 13 pages, resubmitted to Phys. Rev. D (corrections include: a more detailed overview of the combined analysis of the available experimntal data)
Multimodal registration of FISH and nanoSIMS images using convolutional neural networks
Creators: name: He, Xiaojia
name: Bhandarkar, Suchendra
name: Meile, Christof
Publisher: name: UL Research Institutes
Year: 2024
Subjects: classificationCode: 460304
subject: Computer vision
classificationCode: 460306
subject: Image processing
classificationCode: 3107
subject: Microbiology
subject: FOS: Biological sciences

description: Nanoscale secondary ion mass spectrometry (nanoSIMS) and fluorescence in situ hybridization (FISH) microscopy provide high-resolution, multimodal image representations of cell identity and cell activity, respectively, for studies of targeted microbial communities in microbiological research. Despite its importance to microbiologists, multimodal registration of FISH and nanoSIMS images is challenging given the morphological distortion and background noise in both image modalities. In this paper we propose a scheme for multimodal registration of FISH and nanoSIMS images that employs convolutional neural networks (CNNs) for multiscale feature extraction, shape context for computation of the minimum transformation cost feature matching and the thin-plate spline (TPS) model for the registration of the two image modalities. Registration accuracy is quantitatively assessed against manually registered images, at both the pixel and structural levels, using standard metrics. Experimental results show that among the six CNN models that were tested, ResNet18 outperforms VGG16, VGG19, GoogLeNet, ShuffleNet and ResNet101 based on most evaluation metrics. This study demonstrates the utility of CNNs in the registration of multimodal images with significant background noise and morphology distortion. We also show that the shape of microbial aggregates, preserved by binarization, to be a robust feature for registering multimodal microbiology-related images. The proposed multimodal image registration scheme can serve as a powerful tool in microbiological research.Presented at CVCS 2024: the 12th Colour and Visual Computing Symposium, September 5–6, 2024, Gjøvik, Norway
Semi-Supervised Deep Learning for Multi-Tissue Segmentation from Multi-Contrast MRI
Creators: name: Anwar, Syed Muhammad
name: Irmakci, Ismail
name: Torigian, Drew A.
name: Jambawalikar, Sachin
name: Papadakis, Georgios Z.
name: Akgun, Can
name: Akcakaya, Mehmet
name: Bagci, Ulas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Segmentation of thigh tissues (muscle, fat, inter-muscular adipose tissue (IMAT), bone, and bone marrow) from magnetic resonance imaging (MRI) scans is useful for clinical and research investigations in various conditions such as aging, diabetes mellitus, obesity, metabolic syndrome, and their associated comorbidities. Towards a fully automated, robust, and precise quantification of thigh tissues, herein we designed a novel semi-supervised segmentation algorithm based on deep network architectures. Built upon Tiramisu segmentation engine, our proposed deep networks use variational and specially designed targeted dropouts for faster and robust convergence, and utilize multi-contrast MRI scans as input data. In our experiments, we have used 150 scans from 50 distinct subjects from the Baltimore Longitudinal Study of Aging (BLSA). The proposed system made use of both labeled and unlabeled data with high efficacy for training, and outperformed the current state-of-the-art methods with dice scores of 97.52%, 94.61%, 80.14%, 95.93%, and 96.83% for muscle, fat, IMAT, bone, and bone marrow tissues, respectively. Our results indicate that the proposed system can be useful for clinical research studies where volumetric and distributional tissue quantification is pivotal and labeling is a significant issue. To the best of our knowledge, the proposed system is the first attempt at multi-tissue segmentation using a single end-to-end semi-supervised deep learning framework for multi-contrast thigh MRI scans.
description: 20 pages, 9 figures, Journal of Signal Processing Systems
Electron-vibration interaction in single-molecule junctions: from contact to tunneling regime
Creators: name: Tal, O.
name: Krieger, M.
name: Leerink, B.
name: van Ruitenbeek, J. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Point contact spectroscopy on a H2O molecule bridging Pt electrodes reveals a clear crossover between enhancement and reduction of the conductance due to electron-vibration interaction. As single channel models predict such a crossover at transmission probability of t=0.5, we used shot noise measurements to analyze the transmission and observed at least two channels across the junction where the dominant channel has t=0.51+/-0.01 transmission probability at the crossover conductance, which is consistent with the predictions for single-channel models.
description: 4 pages, 1 table, 4 figures
Environmental law and policy in Cameroon legal compliance and challenges by Etong Armand Brice.docx
Creators: name: Etong Brice
Publisher: name: figshare
Year: 2021
Subjects: subject: 50205 Environmental Management
subject: FOS: Earth and related environmental sciences
subject: 50203 Environmental Education and Extension

description: This paper critically investigates the Environmental law in Cameroon, legal compliance and challenges related to the effectiveness of its environmental policies and regulations in terms of implementation, compliance and enforcement. Moreover, it draws a comparative analysis with other countries having best environmental practices that Cameroon might get inspiration from so as to better improve its national environmental policies for an efficient management of challenging global issues like global warming, climate change, deforestation, desertification etc..
Panära orthography conventions
Creators: name: Lapierre, Myriam
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: kre

description: Document was created at the end of a five-day literacy workshop taught by Myriam Lapierre and Bernat Bardagil Mas (August 2017), and updated at the end of a ten-day literacy workshop taught by Myriam Lapierre in August 2018. During these literacy workshops, the Panära community adopted new orthography conventions, which are reflected in the PDF document in this file bundle.
Weyl invariant Jacobi forms along Higgsing trees
Creators: name: Duan, Zhihao
name: Duque, David Jaramillo
name: Kashani-Poor, Amir-Kian
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Using topological string techniques, we compute BPS counting functions of 5d gauge theories which descend from 6d superconformal field theories upon circle compactification. Such theories are naturally organized in terms of nodes of Higgsing trees. We demonstrate that the specialization of the partition function as we move from the crown to the root of a tree is determined by homomorphisms between rings of Weyl invariant Jacobi forms. Our computations are made feasible by the fact that symmetry enhancements of the gauge theory which are manifest on the massless spectrum are inherited by the entire tower of BPS particles. In some cases, these symmetry enhancements have a nice relation to the 1-form symmetry of the associated gauge theory.
description: 57 pages; v2 64 pages: discussion of specialization of Gromov-Witten invariants enhanced and moved to body of paper, with additional tables in appendix
Modelling of runaway electron dynamics during argon-induced disruptions in ASDEX Upgrade and JET
Creators: name: Björk, K. Insulander
name: Vallhagen, O.
name: Papp, G.
name: Reux, C.
name: Embreus, O.
name: Rachlew, E.
name: Fülöp, T.
name: Team, the ASDEX Upgrade
name: contributors, JET
name: Team, the EUROfusion MST1
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Disruptions in tokamak plasmas may lead to the generation of runaway electrons that have the potential to damage plasma-facing components. Improved understanding of the runaway generation process requires interpretative modelling of experiments. In this work we simulate eight discharges in the ASDEX Upgrade and JET tokamaks, where argon gas was injected to trigger the disruption. We use a fluid modelling framework with the capability to model the generation of runaway electrons through the hot-tail, Dreicer and avalanche mechanisms, as well as runaway electron losses. Using experimentally based initial values of plasma current and electron temperature and density, we can reproduce the plasma current evolution using realistic assumptions about temperature evolution and assimilation of the injected argon in the plasma. The assumptions and results are similar for the modelled discharges in ASDEX Upgrade and JET, indicating that the implemented models are applicable to machines of varying size, which is important for the modelling of future, larger machines. For the modelled discharges in ASDEX Upgrade, where the initial temperature was comparatively high, we had to assume that a large fraction of the hot-tail runaway electrons were lost in order to reproduce the measured current evolution.
description: 17 pages, 7 figures
A Survey on Data Pricing: from Economics to Data Science
Creators: name: Pei, Jian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Theoretical Economics (econ.TH)
subject: Artificial Intelligence (cs.AI)
subject: Databases (cs.DB)
subject: Machine Learning (cs.LG)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: Data are invaluable. How can we assess the value of data objectively, systematically and quantitatively? Pricing data, or information goods in general, has been studied and practiced in dispersed areas and principles, such as economics, marketing, electronic commerce, data management, data mining and machine learning. In this article, we present a unified, interdisciplinary and comprehensive overview of this important direction. We examine various motivations behind data pricing, understand the economics of data pricing and review the development and evolution of pricing models according to a series of fundamental principles. We discuss both digital products and data products. We also consider a series of challenges and directions for future work.
Analysis of Strong Outbursts in Selected Blazars from the Metsahovi and UMRAO Monitoring Databases
Creators: name: Pyatunina, T. B.
name: Kudryavtseva, N. A.
name: Gabuzda, D. C.
name: Jorstad, S. G.
name: Aller, M. F.
name: Aller, H. D.
name: Terasranta, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Frequency-dependent time lags for strong outbursts in four gamma-blazars are determined. The time lags for two adjacent outbursts in 2230+114 are correlated with the outburst amplitudes. There is evidence that bright outbursts in 2230+114 appear with a quasi-period of (8.0 +- 0.3) yr.
description: 3 pages, 4 figures, to appear in "Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA" J.D. Romney & M.J. Reid (eds.)
title: The Effects of the Performance Diagnostic Checklist-Human Services Non-Indicated Intervention on Improving Documentation Notes
Creators: name: Thorum, Leigha
Publisher: name: Utah State University
Year: 2024

description: The Performance Diagnostic Checklist-Human Services (PDC-HS) is an assessment used in human service settings to determine effective interventions to improve employee performance. In this study, we used the PDC-HS assessment to help find a type of training that would best improve the quality of session note documentation completed by RBTs® in an autism clinical setting. The participating RBTs® all showed an increase in documentation quality during the non-indicated intervention phase. The results suggest that the PDC-HS non-indicated intervention was effective in improving RBT® performance in completing session note documentation and further research should be conducted to study the impact of the non-indicated intervention on increasing employee performance.
Performance of a low gain avalanche detector in a medical linac and characterisation of the beam profile
Creators: name: Isidori, Tommaso
name: McCavana, Patrick
name: McClean, Brendan
name: McNulty, Ronan
name: Minafra, Nicola
name: Raab, Naomi
name: Rock, Luke
name: Royon, Christophe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Low gain avalanche detectors can measure charged particle fluences with high speed and spatial precision, and are a promising technology for radiation monitoring and dosimetry. A detector has been tested in a medical linac where single particles were observed with a time resolution of 50\,ps. The integrated response is similar to a standard ionising chamber but with a spatial precision twenty times finer, and a temporal precision over 100 million times better, with the capability to measure the charge deposited by a single linac pulse. The unprecedented resolving power allows the structure of the $\sim 3\,μ$s linac pulses to be viewed and the 350\,ps sub-pulses in the train to be observed.
description: 12 pages, 9 figures. Version as published in Phys. Med. Biol. with a more extensive introduction and extra references
Multiplicative structures for Koszul algebras
Creators: name: Buchweitz, Ragnar-Olaf
name: Green, Edward L.
name: Snashall, Nicole
name: Solberg, Øyvind
Publisher: name: arXiv
Year: 2005
Subjects: subject: Rings and Algebras (math.RA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 16S37, 16E40

description: Let $Λ=kQ/I$ be a Koszul algebra over a field $k$, where $Q$ is a finite quiver. An algorithmic method for finding a minimal projective resolution $\mathbb{F}$ of the graded simple modules over $Λ$ is given in Green-Solberg. This resolution is shown to have a "comultiplicative" structure in Green-Hartman-Marcos-Solberg, and this is used to find a minimal projective resolution $\mathbb{P}$ of $Λ$ over the enveloping algebra $Λ^e$. Using these results we show that the multiplication in the Hochschild cohomology ring of $Ł$ relative to the resolution $\mathbb{P}$ is given as a cup product and also provide a description of this product. This comultiplicative structure also yields the structure constants of the Koszul dual of $Ł$ with respect to a canonical basis over $k$ associated to the resolution $\mathbb{F}$. The natural map from the Hochschild cohomology to the Koszul dual of $Λ$ is shown to be surjective onto the graded centre of the Koszul dual.
description: 13 pages
Faint U-Band Dropouts in the WFPC2 Parallels of the Hubble Ultra Deep Field
Creators: name: Wadadekar, Yogesh
name: Casertano, Stefano
name: de Mello, Duilia
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We combine data from the extremely deep Hubble Space Telescope $U$ (F300W) image obtained using WFPC2 as part of the parallel observations of the Hubble Ultra Deep Field campaign, with $BVi$ images from the Great Observatories Origins Deep Survey (GOODS) to identify a sample of Lyman break galaxies in the redshift range $2.0 \lesssim z \lesssim 3.5$. We use recent stellar population synthesis models with a wide variety of ages, metallicities, redshifts, and dust content, and a detailed representation of the \HI cosmic opacity as a function of redshift to model the colors of galaxies in our combination of WFPC2/ACS filters. Using these models, we derive improved color selection criteria that provide a clean selection of relatively unobscured, star forming galaxies in this redshift range. Our WFPC2/F300W image is the deepest image ever obtained at that wavelength. The $10σ$ limiting magnitude measured over 0.2 arcsec$^2$ is 27.5 magnitudes in the WFPC2/F300W image, about 0.5 magnitudes deeper than the F300W image in the Hubble Deep Field (HDF)-N. This extra depth relative to the HDFs allows us to directly probe the luminosity function about 0.5 magnitudes deeper than the depth accessible with the HDF data along an independent line of sight. Our sample of star-forming galaxies with $2.0 \lesssim z \lesssim 3.5$ includes 125 objects, the majority of which show clumpy morphologies. We measure a star formation rate density of 0.18 $M_\odot \rm yr^{-1} Mpc^{-3}$, marginally higher than the value measured for the Hubble Deep Fields.
description: 14 pages, 7 figures, 3 tables, to appear in the Astronomical Journal
The Analysis of Longitudinal Change Patterns in Developing Brain Using Functional and Structural Magnetic Resonance Imaging Data
Creators: name: Saha, Rekha
Publisher: name: Georgia State University
Year: 2023

description:
This paper introduces a novel approach to explore longitudinal changes in brain func- tional network connectivity (FNC) and gray matter (GM) in adolescents, utilizing data from the Adolescent Brain and Cognitive Development (ABCD) study. The study focuses on mul- tivariate patterns of FNC changes over a two-year period, identifying structured Functional Change Patterns (FCPs). One noteworthy finding is the strengthened functional connec- tivity between visual (VS) and sensorimotor (SM) domains as participants age. Moreover, the research highlights gender-specific variations in these patterns. This approach offers a robust means of assessing whole-brain functional changes longitudinally.


Additionally, the paper presents two complementary techniques for analyzing whole-brain structural and functional changes with age. The first method links Functional Change Pat- terns (FCPs) to voxel-wise ?GM, revealing significant correlations for two components. The second technique investigates the connections between FCP and Structural Change Patterns (SCP). These methods provide valuable insights into the linked changes between functional connectivity and GM during adolescence, contributing to a comprehensive understanding of brain development.