cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Inclusive electron scattering in the quasielastic region with Korea-IBS-Daegu-SKKU density functional
Creators: name: Gil, Hana
name: Hyun, Chang Ho
name: Kim, Kyungsik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: With the framework of KIDS (Korea-IBS-Daegu-SKKU) density functional model, the isoscalar and isovector effective masses of nucleon and the effect of symmetry energy in nuclear medium are investigated in inclusive $(e,e')$ reaction in quasielastic region. The effective masses are varied in the range $(0.7 \sim 1.0)M$ with free nucleon mass $M$, and the symmetry energy is varied within the uncertainty allowed by nuclear data and neutron star observation. The wave functions of nucleons inside target nucleus are generated by solving Hartree-Fock equation with adjusting equation of state, binding energy and radius of various stable nuclei, and effective mass of nucleon in the KIDS model. With the obtained wave functions, we calculate the differential cross section for the inclusive $(e,e')$ reaction and compare the theoretical results with Bates, Saclay, and SLAC experimental data. Our model describes experimental data better at SLAC-type high incident electron energy than those measured from Bates and Saclay. The influence of the effective mass and symmetry energy appears to be precise on the longitudinal cross section.
description: Version to be published in Physical Review C
A Reversible Data Hiding Method in Compressible Encrypted Images
Creators: name: Imaizumi, Shoko
name: Izawa, Yusuke
name: Hirasawa, Ryoichi
name: Kiya, Hitoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: We propose a reversible data hiding (RDH) method in compressible encrypted images called the encryption-then-compression (EtC) images. The proposed method allows us to not only embed a payload in encrypted images but also compress the encrypted images containing the payload. In addition, the proposed RDH method can be applied to both plain images and encrypted ones, and the payload can be extracted flexibly in the encrypted domain or from the decrypted images. Various RDH methods have been studied in the encrypted domain, but they are not considered to be two-domain data hiding, and the resultant images cannot be compressed by using image coding standards, such as JPEG-LS and JPEG 2000. In our experiment, the proposed method shows high performance in terms of lossless compression efficiency by using JPEG-LS and JPEG 2000, data hiding capacity, and marked image quality.
description: 10 pages
Becoming classical: A possible influence on the quantum-to-classical transition
Creators: name: Herzenberg, C. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Although cosmic expansion at very small distances is usually dismissed as entirely inconsequential, it appears that these extraordinarily small effects may in fact have a real and significant influence on our world. Calculations suggest that the minute recessional velocities associated with regions encompassed by extended bodies may have a role in creating the distinction between quantum and classical behavior. Using an uncertainty in position estimated from the spread in velocities associated with its size, the criterion that the uncertainty in position should be smaller than the extension of the object leads to a threshold size that could provide a fundamental limit distinguishing the realm of objects governed by classical laws from those governed by quantum mechanics.
description: 2 pages, 0 figures, submitted to Nature for publication as a brief communication
Design, construction and operation of a variable geometry manipulator
Creators: name: Chu, Mark Sin Tian
Publisher: name: University of British Columbia
Year: 2009

description: This thesis focuses on design, dynamical simulation, operation and performance evaluation of a variable geometry manipulator used in space as well as ground based operations. The system is composed of a mobile base supporting two modules connected in a chain topology. Each module consists of two links: one free to slew while the other is permitted to deploy. The governing equations of motion for the planar dynamics of the manipulator system are obtained using the Lagrangian procedure. A Fortran computer program is written for the dynamical simulation of the system. The accuracy of the formulation and the validity of the computer simulation code are verified through energy conservation tests. An extensive parametric study follows which provides better appreciation of the complex interactions between the system variables, initial disturbances, manipulator maneuvers, as well as the revolute joints and pay load flexibility. It also identifies critical combinations of system parameters and maneuvers which may lead to an unacceptable response. Results indicate that the coupling effects together with the flexibility at the revolute joints have significant impact on the manipulator's performance. Obviously, this will affect the desired trajectory tracking by the end-effector, suggesting a need for a suitable control algorithm. This is achieved through the classical Proportional-Integral-Derivative (PID) control strategy. The design, construction and integration of a prototype manipulator system, which progressed concurrently with the numerical simulation phase are also described in detail. Finally, the numerically predicted results are compared with the prototype performance. The remarkable agreement tends to substantiate integrity of the prototype design and effective implementation of the controller. The study lays a sound foundation for further exploration of this class of novel manipulators.
Enhanced vortex heat conductance in mesoscopic superconductors
Creators: name: Kopnin, N. B.
name: Mel'nikov, A. S.
name: Pozdnyakova, V. I.
name: Ryzhov, D. A.
name: Shereshevskii, I. A.
name: Vinokur, V. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Electronic heat transport along the flux lines in a long ballistic mesoscopic superconductor cylinder with a radius of the order of several coherence lengths is investigated theoretically using both semiclassical approach and the full quantum-mechanical analysis of the Bogoliubov--de Gennes equations. The semiclassical approach is constructed analogously to the Landauer transport theory in mesoscopic conductors employing the idea that heat is carried by the quasiparticle modes propagating along the vortex core. We show that the vortex heat conductance in a mesoscopic sample is strongly enhanced as compared to its value for a bulk superconductor; it grows as the cylinder radius decreases. This unusual behavior results from a strongly increased number of single-particle transport modes due to giant mesoscopic oscillations of energy levels, which originate from the interplay between the Andreev reflection at the vortex core boundary and the normal reflection at the sample edge. We derive the exact quantum-mechanical expression for the heat conductance and solve the Bogoliubov--de Gennes equations numerically. The results of numerical computations confirm the qualitative Landauer-type picture and allow us to take into account the partial reflections of excitations. We analyze the effect of surface imperfections on the spectrum of core excitations. We show that the giant oscillations of core levels and thus the essential features of the heat transport characteristic to ideal mesoscopic samples hold for a broad class of surface imperfections as well.
description: 12 pages, 7 figures
Questionnaire d'enquête sur les rituels dans l'enseignement supèrieur adressé aux enseignants
Creators: name: Perrine, Martin
name: Assude Térésa
Publisher: name: Zenodo
Year: 2021
Subjects: rituels, enseignement, université

description: Ce questionnaire a été réalisé dans le cadre d'un travail de recherche concernant les pratiques pédagogiques dans l'enseignement du supérieur. Ce travail s'intéresse ici particulièrement aux rituels utilisé par les enseignants du supérieur pendant leurs enseignements.
Patch-based Medical Image Segmentation using Matrix Product State Tensor Networks
Creators: name: Selvan, Raghavendra
name: Dam, Erik B
name: Flensborg, Søren Alexander
name: Petersen, Jens
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Tensor networks are efficient factorisations of high-dimensional tensors into a network of lower-order tensors. They have been most commonly used to model entanglement in quantum many-body systems and more recently are witnessing increased applications in supervised machine learning. In this work, we formulate image segmentation in a supervised setting with tensor networks. The key idea is to first lift the pixels in image patches to exponentially high-dimensional feature spaces and using a linear decision hyper-plane to classify the input pixels into foreground and background classes. The high-dimensional linear model itself is approximated using the matrix product state (MPS) tensor network. The MPS is weight-shared between the non-overlapping image patches resulting in our strided tensor network model. The performance of the proposed model is evaluated on three 2D- and one 3D- biomedical imaging datasets. The performance of the proposed tensor network segmentation model is compared with relevant baseline methods. In the 2D experiments, the tensor network model yields competitive performance compared to the baseline methods while being more resource efficient.
description: Journal extension of our preliminary conference work "Segmenting two-dimensional structures with strided tensor networks", Selvan et al. 2021, available at arXiv:2102.06900. 24 pages, 12 figures. Accepted to be published at the Journal of Machine Learning for Biomedical Imaging, to be updated at https://www.melba-journal.org/papers/2022:005.html
On the inhomogeneous NLS with inverse-square potential
Creators: name: Campos, Luccas
name: Guzmán, Carlos M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider the inhomogeneous nonlinear Schrödinger equation with inverse-square potential in $\mathbb{R}^N$ $$ i u_t + \mathcal{L}_a u+λ|x|^{-b}|u|^αu = 0,\;\;\mathcal{L}_a=Δ-\frac{a}{|x|^2}, $$ where $λ=\pm1$, $α,b>0$ and $a>-\frac{(N-2)^2}{4}$. We first establish sufficient conditions for global existence and blow-up in $H^1_a(\mathbb{R}^N)$ for $λ=1$, using a Gagliardo-Nirenberg-type estimate. In the sequel, we study local and global well-posedness in $H^1_a(\mathbb{R}^N)$ in the $H^1$-subcritical case, applying the standard Strichartz estimates combined with the fixed point argument. The key to do that is to establish good estimates on the nonlinearity. Making use of these estimates, we also show a scattering criterion and construct a wave operator in $H^1_a(\mathbb{R}^N)$, for the mass-supercritical and energy-subcritical case.
description: 27 pages
Monte Carlo Studies of Geomagnetic Field Effects on the Imaging Air Cherenkov Technique for the MAGIC Telescope Site
Creators: name: Commichau, S. C.
name: Biland, A.
name: Contreras, J. L.
name: Reyes, R. de los
name: Moralejo, A.
name: Sitarek, J.
name: Sobczynska, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Imaging air Cherenkov telescopes (IACTs) detect the Cherenkov light from extensive air showers (EAS) initiated by very high energy (VHE) gamma-rays impinging on the Earth's atmosphere. Due to the overwhelming background from hadron induced EAS, the discrimination of the rare gamma-like events is vital. The influence of the geomagnetic field (GF) on the development of EAS can further complicate the imaging air Cherenkov technique. The amount and the angular distribution of Cherenkov light from EAS can be obtained by means of Monte Carlo (MC) simulations. Here we present the results from dedicated MC studies of GF effects on images from gamma-ray initiated EAS for the MAGIC telescope site, where the GF strength is ~40 micro Tesla. The results from the MC studies suggest that GF effects degrade not only measurements of very low energy gamma-rays below ~100 GeV but also those at TeV-energies.
description: minor text changes
Testing the companion hypothesis for the origin of the X-ray emission from intermediate-mass main-sequence stars
Creators: name: Stelzer, B.
name: Huelamo, N.
name: Micela, G.
name: Hubrig, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There is no straightforward explanation for intrinsic X-ray emission from intermediate-mass main-sequence stars. Therefore the observed emission is often interpreted in terms of (hypothesized) late-type magnetically active companion stars. We use Chandra imaging observations to spatially resolve in X-rays a sample of main-sequence B-type stars with recently discovered companions at arcsecond separation. We find that all spatially resolved companions are X-ray emitters, but seven out of eleven intermediate-mass stars are also X-ray sources. If this emission is interpreted in terms of additional sub-arcsecond or spectroscopic companions, this implies a high multiplicity of B-type stars. Firm results on B star multiplicity pending, the alternative, that B stars produce intrinsic X-rays, can not be discarded. The appropriate scenario in this vein is might be a magnetically confined wind, as suggested for the X-ray emission of the magnetic Ap star IQ Aur. However, the only Ap star in the Chandra sample is not detected in X-rays, and therefore does not support this picture.
description: 12 pages; accepted for publication in Astronomy & Astrophysics
A Second Look at the Metal Line Variability of G29-38
Creators: name: Debes, J. H.
name: Lopez-Morales, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The pulsating white dwarf G29-38 possesses a dust disk and metal lines attributed to the accretion of its disk material. \citet{vonhipg29} have reported variability in the equivalent width of G29-38's CaII K line on the timescale of days. We use high resolution optical spectroscopy of G29-38's CaII K line to test this observation. Over six days spanning in June 2007 and October 2007 we see no evidence for variability in the equivalent width of the Ca II K line. We also sample the variability of the Ca II K line over integrated timescales of $\sim$100-500 seconds, where errors from incomplete coverage of pulsation modes are predicted to be $\sim$8-15%. We find that the scatter of the equivalent widths over this time period is consistent with measurement errors at the 7% level, slightly weaker than predicted but within the uncertainties of predictions. Weaker Ca and Mg lines observed show no significant variability on yearly timescales over ten years based on our data and other high resolution spectra. We conclude that further study is warranted to verify if the accretion onto G29-38 is variable.
description: 14 pages, 4 figures, Accepted to ApJL
Semi-device independent randomness from d-outcome continuous-variable detection
Creators: name: Tebyanian, Hamid
name: Avesani, Marco
name: Vallone, Giuseppe
name: Villoresi, Paolo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently, semi-device independent protocols have attracted increasing attention, guaranteeing security with few hypotheses and experimental simplicity. In this paper, we demonstrate a many-outcomes scheme with the binary phase-shift keying (BPSK) for a semi-device independent protocol based on the energy assumption. We show in theory that the number of certified random bits of the d-outcomes system outperforms the standard scheme (binary-outcomes). Furthermore, we compare the results of two well-known measurement schemes, homodyne and heterodyne detection. Lastly, taking into account the experimental imperfections, we discuss the experimental feasibility of the d-outcome design.
description: 8 pages, 11 figures
Initial Reports of the Deep Sea Drilling Project - Volume 94
Creators: name: Ruddiman, W.F.
name: Kidd, R.B.
name: Thomas, E.
name: The Leg 94 Science Party
Publisher: name: U.S. Government Printing Office
Year: 1987
Subjects: Deep Sea Drilling Project
Glomar Challenger
DSDP
Leg 94
Site 606
Site 607
Site 608
Site 609
Site 610
Site 611
North Atlantic Ocean
Feni Ridge
Rockall Trough
Gardar Ridge
Mid-Atlantic Ridge
King's Trough

description: This volume covers Leg 94 of the cruises of the Drilling Vessel Glomar Challenger. Leg 94 represents the last of four transects of sites set up by the Ocean Paleoenvironment Panel to examine climatic and oceanographic changes in the Pacific and Atlantic oceans. During Leg 94, a transect of six holes aligned roughly in a south-southwest/north-northeast direction were drilled in the North Atlantic from 37° to 53°N. The principal objective of this transect was to document the magnitude and spectral character of the surface-ocean response to high-latitude climatic change in the northern hemisphere during the Neogene. Changes in the modes of oceanic response in this highly sensitive region could then be traced from the late Quaternary record, documented from piston coring, back into times of significantly different climatic boundary conditions (no northern hemisphere ice sheets, an open Panamanian Isthmus, a closed Gibraltar Isthmus, a smaller Antarctic ice sheet). Ancillary paleoclimatic objectives included the recovery of both a faunal and an isotopic record of deepwater variations at water depths ranging from 2393 to 3871 m. Other major targets sought included ascertaining (1) the Neogene history of accelerated sediment deposition on the Feni Ridge in Rockall Trough and the Gardar Ridge on the east flank of the Mid-Atlantic Ridge; and (2) the tectonic history of the King's Trough complex north of the Azores. In addition, rotary or extended core barrel drilling at Site 608 below the upper Neogene hydraulic piston coring objectives attempted to fill gaps in the global DSDP stratigraphic array of Eocene-Oligocene sediment cores. Other significant objectives included establishing (1) a record of Neogene paleomagnetic stratigraphy including detailed polarity transitions; (2) sequences defining variations in the input of continental detritus, particularly by ice rafting; and (3) a Neogene CaCO3 dissolution history for the North Atlantic. Leg 94 began in Norfolk, Virginia in June 1983 and ended in St. John’s, Newfoundland in August 1983.
Next-generation biology: Sequencing and data analysis approaches fornon-model organisms.
Creators: name: Da Fonseca, Rute R.
name: Albrechtsen, Anders
name: Espregueira Themudo, Gonçalo
name: Ramos-Madrigal, Jazmín
name: Sibbesen, Jonas Andreas
name: Maretty, Lasse
name: Zepeda-Mendoza, M. Lisandra
name: Campos, Paula F.
name: Heller, Rasmus
name: Pereira, Ricardo J.
Publisher: name: UNESCO/IOC
Year: 2016
Subjects: subject: RADseq
subject: RNAseq
subject: Targeted sequencing
subject: Genotype likelihoods
subject: Comparative genomics
subject: Population genomic
subject: Parameter Discipline::Biological oceanography::Other biological measurements
subject: Data Management Practices::Data analysis

description: As sequencing technologies become more affordable, it is now realistic to propose studying the evolutionary history of virtually any organism on a genomic scale. However, when dealing with non-model organisms it is not always easy to choose the best approach given a specific biological question, a limited budget, and challenging sample material. Furthermore, although recent advances in technology offer unprecedented opportunities for research in non-model organisms, they also demand unprecedented awareness from the researcher regarding the assumptions and limitations of each method.In this review we present an overview of the current sequencing technologies and the methods used in typical high-throughput data analysis pipelines. Subsequently,we contextualize high-throughput DNA sequencing technologies within their applications in non-model organism biology. We include tips regarding managing unconventional sample material, comparative and population genetic approaches that do not require fully assembled genomes, and advice on how to deal with low depth sequencing data.
Energy of general 4-dimensional stationary axisymmetric spacetime in the teleparallel geometry
Creators: name: Xu, Shanxian
name: Jing, Jiliang
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The field equation with the cosmological constant term is derived and the energy of the general 4-dimensional stationary axisymmetric spacetime is studied in the context of the hamiltonian formulation of the teleparallel equivalent of general relativity (TEGR). We find that, by means of the integral form of the constraints equations of the formalism naturally without any restriction on the metric parameters, the energy for the asymptotically flat/de Sitter/Anti-de Sitter stationary spacetimes in the Boyer-Lindquist coordinate can be expressed as $E=\frac{1}{8π}\int_S dθdϕ(sinθ\sqrt{g_{θθ}}+\sqrt{g_{ϕϕ}}-(1/\sqrt{g_{rr}})(\partial{\sqrt{g_ {θθ} g_{ϕϕ}}}/\partial r))$. It is surprised to learn that the energy expression is relevant to the metric components $g_{rr}$, $g_{θθ}$ and $g_{ϕϕ}$ only. As examples, by using this formula we calculate the energies of the Kerr-Newman (KN), Kerr-Newman Anti-de Sitter (KN-AdS), Kaluza-Klein, and Cvetič-Youm spacetimes.
description: 12 pages
Content Marketing and Growth Hacking Playbook
Creators: name: Almeida, Samuel
name: Kolyvas, Themis
name: Jakobs- Bohack, Susanne
name: Bobisch, Christian
name: Núñez, María José
name: Hancock, Mitchell
Publisher: name: Zenodo
Year: 2020

description: The iPRODUCE Content Marketing and Growth Hacking Playbook is a living document that details the strategy for generation of awareness and outreach through communication and marketing of project content, growth of the project and its target groups through development and absorption of knowledge, and the dissemination of results. The deliverable describes the iPRODUCE main target groups; channels, tools and activities for implementing the strategy; role of partners; timeline; and how the consortium will monitor and assess the impact of its efforts. This deliverable will be updated continuously.
Scalar Pre-potentials for Spinor and Tensor Fields on Spacetime
Creators: name: Tucker, Robin W.
name: Walton, Timothy J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We review a technique for solving a class of classical linear partial differential systems of relevance to physics in Minkowski spacetime. All the equations are amenable to analysis in terms of complex solutions in the kernel of the scalar Laplacian and a complexified Hertz potential. The complexification prescription ensures the existence of regular physical solutions with chirality and propagating, non-singular, pulse-like characteristics that are bounded in all three spatial dimensions. The technique is applied to the source-free Maxwell, Bopp-Landé-Podolsky and linearised Einstein field systems, and particular solutions are used for constructing classical models describing single-cycle laser pulses and a mechanism is discussed for initiating astrophysical jets. Our article concludes with a brief introduction to spacetime Clifford algebra ideals that we use to represent spinor fields. We employ these to demonstrate how the same technique used for tensor fields enables one to construct new propagating, chiral, non-singular, pulse-like spinor solutions to the massless Dirac equation in Minkowski spacetime.
description: 31 pages, 6 figures, written for Tekin Dereli's 70th birthday Festschrift celebration. arXiv admin note: text overlap with arXiv:1805.08825
Search for Neutral MSSM Higgs Bosons at LEP
Creators: name: ALEPH
name: DELPHI
name: L3
name: Searches", OPAL Collaborations. The LEP Working Group "for Higgs Boson
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four collaborations are statistically combined and examined for their consistency with the background hypothesis and with a possible Higgs boson signal. The combined LEP data show no significant excess of events which would indicate the production of Higgs bosons. The search results are used to set upper bounds on the cross-sections of various Higgs-like event topologies. The results are interpreted within the MSSM in a number of "benchmark" models, including CP-conserving and CP-violating scenarios. These interpretations lead in all cases to large exclusions in the MSSM parameter space. Absolute limits are set on the parameter tanb and, in some scenarios, on the masses of neutral Higgs bosons.
description: 81 pages, 22 figures, Submitted to Euro. Phys. J. C
Carrier transport in 2D graphene layers
Creators: name: Hwang, E. H.
name: Adam, S.
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Carrier transport in gated 2D graphene monolayers is theoretically considered in the presence of scattering by random charged impurity centers with density $n_i$. Excellent quantitative agreement is obtained (for carrier density $n > 10^{12} \rm{cm}^{-2}$) with existing experimental data (Ref. \onlinecite{kn:novoselov2004, kn:novoselov2005, kn:zhang2005, kn:kim2006, kn:fuhrer2006}). The conductivity scales linearly with $n/n_i$ in the theory, and shows extremely weak temperature dependence. The experimentally observed asymmetry between electron and hole conductivities is explained by the asymmetry in the charged impurity configuration in the presence of the gate voltage, while the high-density saturation of conductivity for the highest mobility samples is explained as a crossover between the long-range and the point scattering dominated regimes. We argue that the experimentally observed saturation of conductivity at low density arises from the charged impurity induced inhomogeneity in the graphene carrier density which becomes severe for $n \lesssim n_i \sim 10^{12} \rm{cm}^{-2}$.
description: 5 pages, 4 figures, published in Phys. Rev. Lett
Ultracold atom-molecule collisions with fermionic atoms
Creators: name: D'Incao, J. P.
name: Esry, B. D.
name: Greene, Chris H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Elastic and inelastic properties of weakly bound s- and p-wave molecules of fermionic atoms that collide with a third atom are investigated. Analysis of calculated collisional properties of s-wave dimers of fermions in different spin states permit us to compare and highlight the physical mechanisms that determine the stability of s-wave and p-wave molecules. In contrast to s-wave molecules, the collisional properties of p-wave molecules are found to be largely insensitive to variations of the p-wave scattering length and that these collisions will usually result in short molecular lifetimes. We also discuss the importance of this result for both theories and experiments involving degenerate Fermi gases.
description: 6 pages, 2 figures
An RSM Extension For: ¨The Higher Order Coherence Arises - A Lower Dimension Emerges¨ --  Optional Endings  Authors: M. Kirjonen doi.org/10.5281/14795293
Creators: name: Kirjonen, Miikka Markus
name: Kirjonen, Miikka Markus
Publisher: name: Zenodo
Year: 2025
Subjects: universal wavefunction
poetic mathematical formalism
Coherence
recursive
phase coupling
cosmic phenomena
consciousness
approach
Physics
emergence
fractal
fractal recursion
0-dimensional
0D

description: Two additional endings to the original paper – True Coherence Has No Space for Separation –  from section 7. onward. I urge one to see the extra mile! It's Poetic!

They extend the infinite poetic possibilities on how approach this framework. They all are valid ¨flavors¨ how to reach the outcome. They are not strictly all so different in terms of the common underlying thinking, but they enrich the narrative and help bridge the gap between the rigorous formalism and the intuitive, lived experience of coherence in a playful ¨not-so-serious¨ way. A way I'd like to see more in academia. Physics is next to an art form, hence it's a grand play of vantages and angles of approach.

This offered trinity of optional endingss is intended to strengthen the overall message, oofer variation for the comprehension, inviting readers to appreciate that the emergence of consciousness and cosmic coherence is as much an poetic art as it is a mathematical science. My free-flow intuition approaches – all paint a picture of the universe as a continuous, recursive composition of phase-coupled excitations. I wrote all 3 versions to leverage as many angles as possible in order to fully reflect my underlying vision.

My personal favourite ending might well be option no. 2. below. The mathematical formalism I here propose — encompassing the fractal recursion operator R, the coherence measure C(t), and the emergent universal wavefunction (Ψ ∞) — captures the idea that true coherence arises not by adding complexity in the form of extra dimensions but by stripping away the illusions of separation. In the limit of infinite recursive refinement, the system converges to a state of perfect phase locking—a 0-dimensional (0D) state where all distinctions vanish. This vision resonates with our shared metaphor of free-jazz approach improvisation: just as musicians continually refine and loop their improvisations to create a coherent performance, so too does the wavefunction “improvise” through recursive phase coupling, yielding stable resonance chambers that underlie the same both consciousness and cosmic phenomena how ever you refine the approach.
Planning in an uncertain environment : a case study of gas turbine technology
Creators: name: El-Ramly, Manal
Publisher: name: University of British Columbia
Year: 2009

description: The electric industry is in a time of rapid change, as it is moving from a regulated monopolistic environment with a guaranteed rate of return to a risky competitive market with many players. This change is introducing uncertainty with respect to supply, demand, pricing, input fuel costs and technology. This thesis proposes a methodology for financial decision making in such an uncertain environment. The objective of the model is to demonstrate an approach for solving the problem, not to provide a specific answer to the problem. Therefore, the model discussed here is simple; users who use the approach are capable of developing their own, more sophisticated, models. A probabilistic cash flow model technique is employed in this thesis. The model is based on a Monte Carlo Simulation. The model determines the supply price of electricity to achieve a MARR (minimum attractive rate of return) on a gas turbine project. The model also compares two technologies, namely, F Series and G Series gas turbines, to determine which technology to implement depending on an organizations' appetite for risk. The input variables for the model are associated with a large degree of uncertainty, particularly due to the rapid changes in the electric industry. Expert judgments was used to characterize this uncertainty, through a process of subjective elicitation. Based on the results of the 3 experts, if one were to invest in a new gas turbine facility, the technology to implement today, given the assumptions of the models, would be the G Series if there were no constraint on the ability to sell the demand. As the constraint on demand increases, the F Series becomes the better alternative, as its decreased capital costs becomes more advantageous than its lower efficiency. The large variations in the experts' opinions suggests that the conclusions are themselves uncertain. A different sampling of experts could very well result in a different conclusion.
Search for RPV Gaugino and Gravitino Production at HERA
Creators: name: Adler, V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In R-parity violating supersymmetry a gaugino can be produced at HERA by the t-channel exchange of a selectron between the beam positron or electron and an initial quark from the beam proton. In the generic MSSM model the gaugino can decay in a cascade into two quarks and an (anti)lepton. For this model a search in the e^{+-}-channel has been performed with the ZEUS detector using combined e^{+-}p-data of L_{int}=121pb^{-1}. No deviations from the Standard Model have been observed and exclusion limits on parameters of the MSSM have been set. Assuming the GMSB model with the gravitino as lightest supersymmetric particle and the neutralino as next-to-lightest supersymmetric particle, the neutralino decays into a gravitino and a high-energy photon. For this model searches have been performed with the H1 detector using e^+p-data of L_{int}=64.3pb^{-1} and e^-p-data of L_{int}=13.5pb^{-1} and with the ZEUS detector using e^+p-data of L_{int}=65.1pb^{-1}. No deviations from the Standard Model have been observed and limits on the selectron and neutralino masses have been set. Additionally, limits on the R-parity violating Yukawa coupling have been derived in the search performed with the H1 detector.
description: Contributed to proceedings of International Europhysics Conference on High Energy Physics (HEP2005), July 21st - 27th 2005, Lisboa, Portugal
Comparing engineering students perceptions of online and traditional face-to-face environments during a problem and Project Based Learning (PBL) module
Creators: name: O'Connor, Sean
name: Power, Jason
name: Blom, Nicolaas
name: TANNER, DAVID
name: Stack Mulvihill, Eamonn
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 39
subject: Education

description: Research examining the future of engineering education has highlighted forthcoming challenges for engineering institutions, such as increasing cohort sizes, limited budgets and a demand for the delivery of flexible, diverse and student-centred curricula. To this end,scholars have suggested the use of problem and project based learning (PBL) methodologies that can be implemented within hybrid learning environments. This paper examines and compares students' perceptions of a PBL module that was delivered by means of online and traditional face-to-face environments. The goal of this paper is to highlight the students' voice over other stakeholders to provide valuable insights into their preferences of current pedagogical practices. This in turn can provide information to improve teaching and learning in hybrid learning environments. This study was carried out with two student cohorts of first year engineering students. One of the cohorts completed the module in 2021 (N=94) in an online environment and the second in 2022 (N=89) in a traditional face-to-face environment. This paper focus on analysing the 2022 cohort and comparing the results against the findings presented at SEFI 2022 in Barcelona for the 2021 cohort. The findings revealed areas of significance for educators conducting PBL within online and hybrid environments. This includes the role of communication, module planning, dealing with conflict, and flexibility in learning.
Feasibility of Large Free-standing Liquid Films in Space
Creators: name: Zheng, Rui
name: Witten, Thomas A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider the feasibility of large-scale free-standing thin liquid film experiment in the space environment as a new realization to study two-dimensional hydrodynamics. We identify material and environmental criteria necessary to avoid freezing, evaporation, chemical degradation, and spontaneous collapse of the film. These criteria pose no obstacles to achieving films of kilometer scale and lifetime of many months, with attainable Reynolds number up to 10^7. However, impacts from meteoroids pose a serious threat to the film, and require substantial shielding or unproven self-healing properties in the film. Current theoretical and experimental studies of two-dimensional turbulence are briefly reviewed. We also describe a specific candidate liquid for the film.
description: 13 pages
Search for R-Parity violating Supersymmetry with the D0 Detector
Creators: name: Autermann, Christian
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Searches for R-parity violating supersymmetry with the D0 detector at the Fermilab Tevatron ppbar-collider are presented. In the case of non-zero LLE couplings lambda_ijk>=0.01, multi-lepton final states, and for a small coupling lambda_122<<0.01 di-muon final states are studied. The case of non-zero LQD coupling lambda'_211 leads to final states with two muons and jets. A total integrated luminosity of 0.38 fb-1 collected between April 2002 and August 2004 is utilized. The observed numbers of events are in agreement with the Standard Model expectation, and limits on RPV supersymmetry are derived, extending significantly previous bounds.
description: to appear in Proceedings of SUSY06, the 14th International Conference on Supersymmetry and the Unification of Fundamental Interactions, UC Irvine, California, 12-17 June 2006
Image Captioning with Attention for Smart Local Tourism using EfficientNet
Creators: name: Fudholi, Dhomas Hatta
name: Windiatmoko, Yurio
name: Afrianto, Nurdi
name: Susanto, Prastyo Eko
name: Suyuti, Magfirah
name: Hidayatullah, Ahmad Fathan
name: Rahmadi, Ridho
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Smart systems have been massively developed to help humans in various tasks. Deep Learning technologies push even further in creating accurate assistant systems due to the explosion of data lakes. One of the smart system tasks is to disseminate users needed information. This is crucial in the tourism sector to promote local tourism destinations. In this research, we design a model of local tourism specific image captioning, which later will support the development of AI-powered systems that assist various users. The model is developed using a visual Attention mechanism and uses the state-of-the-art feature extractor architecture EfficientNet. A local tourism dataset is collected and is used in the research, along with two different kinds of captions. Captions that describe the image literally and captions that represent human logical responses when seeing the image. This is done to make the captioning model more humane when implemented in the assistance system. We compared the performance of two different models using EfficientNet architectures (B0 and B4) with other well known VGG16 and InceptionV3. The best BLEU scores we get are 73.39 and 24.51 for the training set and the validation set respectively, using EfficientNetB0. The captioning result using the developed model shows that the model can produce logical caption for local tourism-related images
description: 10 pages, 7 figures, still in review at ICITDA Conference
Uniform attractors for non-autonomous wave equations with nonlinear damping
Creators: name: Sun, Chunyou
name: Cao, Daomin
name: Duan, Jinqiao
Publisher: name: arXiv
Year: 2006
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35L05, 35B40, 35B41

description: We consider dynamical behavior of non-autonomous wave-type evolutionary equations with nonlinear damping, critical nonlinearity, and time-dependent external forcing which is translation bounded but not translation compact (i.e., external forcing is not necessarily time-periodic, quasi-periodic or almost periodic). A sufficient and necessary condition for the existence of uniform attractors is established using the concept of uniform asymptotic compactness. The required compactness for the existence of uniform attractors is then fulfilled by some new a priori estimates for concrete wave type equations arising from applications. The structure of uniform attractors is obtained by constructing a skew product flow on the extended phase space for the norm-to-weak continuous process.
description: 33 pages, no figure
title: System_relevant? Die Bedeutung der gesellschaftlichen (Nicht-)Anerkennung von SAGE-Berufen für die Fachkräfte
Creators: name: Breßlein, Nina
Publisher: name: Alice Salomon Hochschule Berlin
Year: 2024

description: SAGE-Berufen wird, trotz der beigemessenen Systemrelevanz für die Gesellschaft, nur
unzureichend Anerkennung entgegengebracht. Der soziale Bereich steht aktuell Herausforderungen
wie mangelhaften Arbeitsbedingungen, einem grassierenden Fachkräftemangel
und einer an Komplexität zunehmenden Gesellschaft gegenüber. Vor dem Hintergrund
dieser Entwicklungen ist es wichtig, sich mit der Perspektive von im sozialen
Bereich tätigen Personen auseinanderzusetzen. Die vorliegende Masterthesis verfolgt
das Ziel, konjunktive Erfahrungsräume bei sozialen Fachkräften in Bezug auf die gesellschaftliche
Stellung ihrer Berufe zu rekonstruieren. Der empirische Teil umfasst zwei
Gruppendiskussionen mit Masterstudent:innen und Berufstätigen, die mit der dokumentarischen
Methode ausgewertet werden. Eine der zentralen Erkenntnisse ist, dass sich
bei den Fachkräften eine Anerkennungskrise dokumentiert. Dabei lässt sich eine Diskrepanz
zwischen dem Bewusstsein für Komplexität und Relevanz ihrer Berufe sowie einer
Falschrahmung und unzureichenden Anerkennung der beruflichen Tätigkeiten durch die
Gesellschaft erkennen. Eine weitere Erkenntnis ist, dass sich bei den Diskussionsteilnehmer:
innen trotz der Anerkennungskrise keine realistische Handlungsperspektive,
etwa in Form von berufspolitischem Aktivwerden, entfaltet. Es lässt sich daraus eine
Notwendigkeit der Aufwertung von sozialen Berufen schließen, bei der die herausgearbeitete
Anerkennungskrise und ihre konstituierenden Bedingungen als relevante Orientierungen
fungieren könnten. Dafür bietet sich eine Weiterbearbeitung des Themenkomplexes,
etwa im Sinne einer breiter gefächerten Auswertung sowie einer Typenbildung,
an.
Casimir Energies: Temperature Dependence, Dispersion, and Anomalies
Creators: name: Brevik, I.
name: Milton, K. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Assuming the conventional Casimir setting with two thick parallel perfectly conducting plates of large extent with a homogeneous and isotropic medium between them, we discuss the physical meaning of the electromagnetic field energy $W_{\rm disp}$ when the intervening medium is weakly dispersive but nondissipative. The presence of dispersion means that the energy density contains terms of the form $d[ωε(ω)] /dω$ and $d[ωμ(ω)] /dω$. We find that, as $W_{\rm disp}$ refers thermodynamically to a non-closed physical system, it is {\it not} to be identified with the internal thermodynamic energy $U$ following from the free energy $F$, or the electromagnetic energy $W$, when the last-mentioned quantities are calculated without such dispersive derivatives. To arrive at this conclusion, we adopt a model in which the system is a capacitor, linked to an external self-inductance $L$ such that stationary oscillations become possible. Therewith the model system becomes a non-closed one. As an introductory step, we review the meaning of the nondispersive energies, $F, U,$ and $W$. As a final topic, we consider an anomaly connected with local surface divergences encountered in Casimir energy calculations for higher spacetime dimensions, $D>4$, and discuss briefly its dispersive generalization. This kind of application is essentially a generalization of the treatment of Alnes {\it et al.} [J. Phys. A: Math. Theor. {\bf 40}, F315 (2007)] to the case of a medium-filled cavity between two hyperplanes.
description: 15 pages, no figures; slight revision of discussion
Single and double coincidence nucleon spectra in the weak decay of Lambda hypernuclei
Creators: name: Bauer, E.
name: Garbarino, G.
name: Parreno, A.
name: Ramos, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent progress has been experienced in the field of hypernuclear weak decay, especially concerning the ratio of the neutron- to proton-induced Lambda non-mesonic decay rates, G_n/G_p. Theoretical analyses of nucleon coincidence data have been performed in a finite nucleus framework. They led to the extraction of G_n/G_p values in agreement with pure theoretical estimates, thus providing an evidence for the solution of a longstanding puzzle. Here we present an alternative approach to the problem, based on a nuclear matter formalism extended to finite nuclei via the local density approximation. The work is motivated by the exigence to make the determination of G_n/G_p from data less model dependent. One-meson-exchange potentials are used for describing both the one- and two-nucleon induced decays, Lambda N -> n N and Lambda N N -> n N N. For the latter, treated within a microscopic approach, the channels Lambda n n -> n n n and Lambda p p -> n p p are included in addition to the mode Lambda n p -> n n p already considered, in a phenomenological way, in previous studies. The propagation of the final nucleons in the residual nucleus is simulated by an intranuclear cascade code. We evaluate single and double coincidence nucleon spectra for the non-mesonic decay of C-12-Lambda. Through the comparison of our predictions with KEK coincidence data we determine G_n/G_p=0.43 \pm 0.10 for this hypernucleus, confirming previous finite nucleus analyses.
description: 34 pages, 17 figures
Classification of Kerr-de Sitter-like spacetimes with conformally flat $\mathscr{I}$ in all dimensions
Creators: name: Mars, Marc
name: Peón-Nieto, Carlos
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Using asymptotic characterization results of spacetimes at conformal infinity, we prove that Kerr-Schild-de Sitter spacetimes are in one-to-one correspondence with spacetimes in the Kerr-de Sitter-like class with conformally flat $\mathscr{I}$. Kerr-Schild-de Sitter are spacetimes of Kerr-Schild form with de Sitter background that solve the $(Λ>0)$-vacuum Einstein equations and admit a smooth conformal compactification sharing $\mathscr{I}$ with the background metric. Kerr-de Sitter-like metrics with conformally flat $\mathscr{I}$ are a generalization of the Kerr-de Sitter metrics, defined originally in four spacetime dimensions and extended here to all dimensions in terms of their initial data at null infinity. We explicitly construct all metrics in this class as limits or analytic extensions of Kerr-de Sitter. The structure of limits is inferred from corresponding limits of the asymptotic data, which appear to be hard to guess from the spacetime metrics.
description: 46 pages, 1 figure