cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Diamagnetic pumping near the base of a stellar convection zone
Creators: name: Kitchatinov, L. L.
name: Rüdiger, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The property of inhomogeneous turbulence in conducting fluids to expel large-scale magnetic fields in the direction of decreasing turbulence intensity is shown as important for the magnetic field dynamics near the base of a stellar convection zone. The downward diamagnetic pumping confines a fossil internal magnetic field in the radiative core so that the field geometry is appropriate for formation of the solar tachocline. For the stars of solar age, the diamagnetic confinement is efficient only if the ratio of turbulent magnetic diffusivity of the convection zone to the (microscopic or turbulent) diffusivity of the radiative interiour is larger than 10^5. Confinement in younger stars require still larger diffusivity ratio. The observation of persistent magnetic structures on young solar-type stars can thus provide evidences for the nonexistence of tachoclines in stellar interiors and on the level of turbulence in radiative cores.
description: 4 pages, 5 figures
The mother and child reunion: a reconception of child custody litigation and mediation
Creators: name: Bourbonnais, Brenda Susan
Publisher: name: University of British Columbia
Year: 2009

description: Many women have shared with family lawyers such as myself their stories about how the legal system marginalized their maternal connections and child caregiving experiences by imposing on them legal positions and constructs about mothering and caring that differed from the reality of their experiences. This thesis develops the argument that neither the litigation nor the mediation of child custody disputes in Canada address the systemic problems association with the marginalization of women. Both processes reflect white, male, middle class, heterosexual expressions, productions and perpetuations of patriarchy. I first define the dominant ideology of motherhood and present differing mothering experiences which more accurately reflect the realities of caregiving. I then deconstruct the legal and social methods used in both the litigation and mediation of child custody in order to demonstrate their use of dominant ideologies of motherhood and family to limit women’s caregiving opportunities. From the context of two women’s legal experiences, I explore the possibility of introducing feminist legal methods into mediation and litigation in recognition of the fact that women must engage with the legal system to address the practicalities of childcare, economics and shelter. I respond to the popular argument that mediation is a panacea to the ills of litigation by taking the position that both are situated along a continuum perpetuating the same ideological assumptions about mothers and family which oppress all women to some degree. I argue that mediation is ultimately more oppressive to women because unlike litigation, systemic problems in mediation are obscured by romanticism and rhetoric. Firstly, I attempt a mother and child reunion by trying to create a place for feminist conceptions of caregiving within child custody litigation and mediation which would empower women. I conclude that it will be difficult to create a space for feminist methodology in custody litigation and mediation without the continued efforts of lawyers to reconstruct the ideology of mother.
Varying Alpha Generalized Dirac-Born-Infeld Models
Creators: name: Tavares, V. C.
name: Martins, C. J. A. P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the cosmological consequences of a class of Dirac-Born-Infeld models, and assess their viability as a candidate for the recent acceleration of the Universe. The model includes both the rolling tachyon field and the generalized Chaplygin gas models as particular limits, and phenomenologically each of these provides a possible mechanism for a deviation of the value of the dark energy equation of state from its canonical (cosmological constant) value. The field-dependent potential that is characteristic of the rolling tachyon also leads to variations of the fine-structure constant $α$, implying that the model can be constrained both by standard cosmological probes and by astrophysical measurements of $α$. Our analysis, using the latest available low-redshfit data and local constraints from atomic clock and weak equivalence principle experiments, shows that the two possible deviations of the dark energy equation of state are constrained to be $\log_{10}{(1+w_0)_V}
description: 15 pages, 6 figures
Letter from Rowell, Reid, Wilkie & Wood to Mr. [James] Goldie, September 14, 1910
Creators: name: Rowell, Reid
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to Mr. [James] Goldie from Rowell, Reid, Wilkie & Wood, dated September 14, 1910, regarding modifications to the irrigation agreement.
Large Random Arrowhead Matrices: Multifractality, Semi-Localization, and Protected Transport in Disordered Quantum Spins Coupled to a Cavity
Creators: name: Dubail, Jérôme
name: Botzung, Thomas
name: Schachenmayer, Johannes
name: Pupillo, Guido
name: Hagenmüller, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We provide an exact solution of large random arrowhead Hamiltonians with diagonal disorder, a minimal model for inhomogeneously broadened quantum emitters coupled to a cavity mode. We find that the distribution of energy spacing can be continuously tuned between Poisson statistics and a distribution that is very close to semi-Poisson statistics - the latter being usually associated to the critical point of "Anderson" localization-delocalization transitions. We demonstrate that all the eigenstates - including two polaritons and a continuum of dark states - are multifractal, which indicates the existence of a critical "semi-localized" phase for all values of the light-matter coupling strength, where dark states are localized over multiple, arbitrarily-distant sites. By computing the escape probability from an initial site, we find that the system has a peculiar diffusive-like behavior with an escape probability growing linearly with time for any finite coupling strength, and that the escape rate can be controlled by selecting the energy of the initial site. The escape rate averaged over the disorder configurations is found to exhibit a maximum for intermediate coupling strengths, before saturating at a lower value in the collective strong coupling limit - a "cavity protection" effect. Surprisingly, we show that the saturation value increases with the disorder, indicating that the cavity does not only protect transport against disorder but can also turn the latter into an ally improving transport. We finally investigate the system in a two-terminal configuration, and show that the steady-state excitation current exhibits similar features as the escape probability, thereby extending our cavity-protected transport scenario to out-of-equilibrium situations. We finally demonstrate that dark states can provide the major contribution to long-distance transport in disordered systems.
Additional file 2 of Sialolithiasis: retrospective analysis of the effect of an escalating treatment algorithm on patient-perceived health-related quality of life
Creators: name: Lommen, Julian
name: Schorn, Lara
name: Roth, Benjamin
name: Naujoks, Christian
name: Handschel, Jörg
name: Holtmann, Henrik
name: Kübler, Norbert R.
name: Sproll, Christoph
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 2: Table S2 Questionnaire to patients directly after the intervention.
ALMA observations of envelopes around first hydrostatic core candidates
Creators: name: Maureira, Maria Jose
name: Arce, Hector G.
name: Dunham, Michael M.
name: Mardones, Diego
name: Guzman, Andres E.
name: Pineda, Jaime E.
name: Bourke, Tyler L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present ALMA 3 mm molecular line and continuum observations with a resolution of ~3.5" towards five first hydrostatic core (FHSC) candidates (L1451-mm, Per-bolo 58, Per-bolo 45, L1448-IRS2E and Cha-MMS1). Our goal is to characterize their envelopes and identify the most promising sources that could be bona fide FHSCs. We identify two candidates which are consistent with an extremely young evolutionary state (L1451-mm and Cha-MMS1), with L1451-mm being the most promising FHSC candidate. Although our envelope observations cannot rule out Cha-MMS1 as a FHSC yet, the properties of its CO outflow and SED published in recent studies are in better agreement with the predictions for a young protostar. For the remaining three sources, our observations favor a prestellar nature for Per-bolo 45 and rule out the rest as FHSC candidates. Per-bolo 58 is fully consistent with being a Class 0, while L1448 IRS2E shows no emission of high-density tracers (NH2D and N2H+) at the location of the previously identified compact continuum source, which is also undetected in our observations. Thus we argue that there is no embedded source at the presumptive location of the FHSC candidate L1448 IRS2E. We propose instead, that what was thought to be emission from the presumed L1448 IRS2E outflow corresponds to outflow emission from a nearby Class 0 system, deflected by the dense ambient material. We compare the properties of the FHSC candidates studied in this work and the literature, which shows that L1451-mm appears as possibly the youngest source with a confirmed outflow.
description: 26 pages, 14 figures. Accepted for publication in MNRAS
Increasing of entanglement entropy from pure to random quantum critical chains
Creators: name: Santachiara, Raoul
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: It is known that the entropy of a block of spins of size $L$ embedded in an infinite pure critical spin chain diverges as the logarithm of $L$ with a prefactor fixed by the central charge of the corresponding conformal field theory. For a class of strongly random spin chains, it has been shown that the correspondent block entropy still remains universal and diverges logarithmically with an "effective" central charge. By computing the entanglement entropy for a family of models which includes the $N$-states random Potts chain and the $Z_N$ clock model, we give some definitive answer to some recent conjectures about the behaviour of the effective central charge. In particular, we show that the ratio between the entanglement entropy in the pure and in the disordered system is model dependent and we provide a series of critical models where the entanglement entropy grows from the pure to the random case.
description: 4 pages, 2 eps figures, added references
title: Revista Faces de Eva. Estudos sobre a Mulher, N.º 39 (2018)
Creators: name: Jesus, Isabel Henriques de
Publisher: name: CICS.NOVA - Centro Interdisciplinar de Ciências Sociais, Faculdade de Ciências Sociais, Universidade NOVA de Lisboa
Year: 2018

description: Número 39, 2018, da revista Faces de Eva. Estudos sobre a Mulher, publicado na íntegra em acesso aberto total.
description: Jesus, I. H. de (Dir.) (2018). Faces de Eva. Estudos sobre a Mulher, (39). ISSN: 0874-6885
MPEC 2024-T183 : 2024 TJ5
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TJ5

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Additional file 3 of Sialolithiasis: retrospective analysis of the effect of an escalating treatment algorithm on patient-perceived health-related quality of life
Creators: name: Lommen, Julian
name: Schorn, Lara
name: Roth, Benjamin
name: Naujoks, Christian
name: Handschel, Jörg
name: Holtmann, Henrik
name: Kübler, Norbert R.
name: Sproll, Christoph
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 3: Table S3 Questionnaire to patients ≥6 months after the intervention.
Intrinsic Hall conductivities induced by the orbital magnetic moment
Creators: name: Das, Kamal
name: Agarwal, Amit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The intrinsic anomalous Hall effect is one of the most exciting manifestations of the geometric properties of the electronic wave-function. Here, we predict that the electronic wave-function's geometric nature also gives rise to a purely quantum mechanical, {\it intrinsic} (scattering time-independent) component of the Hall conductivities in the presence of a magnetic field. We show that the orbital magnetic moment and the anomalous Hall velocity combine to generate a scattering time-independent contribution to the Hall effect, in addition to the Lorentz force induced scattering time-dependent `classical' Hall effect. This dissipation-less Hall effect also manifests in the thermo-electric and thermal conductivities and is dominant near the band edges and band-crossings. It gives rise to negative magneto-resistance and it also leads to an underestimation in the charge carrier density measured in Hall experiments.
description: 6 pages, 4 figures. Any feedback will be highly appreciated
title: Investigating the role of fishing gear on plastic pollution: The occurrence of fishing gear-related plastic ingested by Atlantic cod (Gadus morhua) and the fragmentation of polymer ropes
Creators: name: Saturno, Jacquelyn
Publisher: name: Memorial University of Newfoundland
Year: 2020

description: Globally, the fishing industry is one key source of plastic pollution as the majority of fishing gear is made from plastic polymers and regularly used at sea. To study this relationship in an area with high fishing activity, I collected the gastrointestinal tracts (GI) of commercially caught Atlantic cod (Gadus morhua) on Fogo Island, Newfoundland and Labrador and dissected them for ingested plastics. The frequency of occurrence was 1.4% for 216 GI tracts. Two of the three plastic items ingested were bait bags used in cod pots and the third was a thread such as the type found in fishing rope. Following this, I conducted an experiment to test the way different polymer fishing ropes create plastic pollution during use. All polymer types emitted plastics at the same rate (total plastic particles over time), with Polypropylene and Polypropylene-Polyethylene having lasted longer during trials, allowing for more time to pollute. Various sizes and morphologies of plastics were emitted, creating different pollution profiles for each polymer type. Through my investigation of the natural environment and testing fishing gear in-use, this thesis demonstrates that fishing gear is a source of plastic pollution in both fish ingestion and through fragmentation of fishing gear during abrasion with the sea floor in Newfoundland and Labrador, Canada.
$J/ψ$ near $T_c$
Creators: name: Song, Taesoo
name: Gubler, Philipp
name: Hong, Juhee
name: Lee, Su Houng
name: Morita, Kenji
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the mass shift and thermal decay width of the $J/ψ$ near the QCD transition temperature $T_c$ by imposing two independent constraints on these variables that can be obtained first by solving the Schrödinger equation and second from the QCD sum rule approach. While the real part of the potential is determined by comparing the QCD sum rule result for charmonium and the D meson to that from the potential model result, the imaginary potential is taken to be proportional to the perturbative form multiplied by a constant factor, which in turn can be determined by applying the two independent constraints. The result shows that the binding energy and the thermal width becomes similar in magnitude at around $T=1.09T_c$, above which the sum rule analysis also becomes unstable, strongly suggesting that the $J/ψ$ will melt slightly above $T_c$.
description: 5 pages, 3 figures
MPEC 2024-T184 : 2024 TK5
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TK5

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Deep learning for solution and inversion of structural mechanics and vibrations
Creators: name: Haghighat, Ehsan
name: Bekar, Ali Can
name: Madenci, Erdogan
name: Juanes, Ruben
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: Deep learning has been the most popular machine learning method in the last few years. In this chapter, we present the application of deep learning and physics-informed neural networks concerning structural mechanics and vibration problems. Demonstration problems involve de-noising data, solution to time-dependent ordinary and partial differential equations, and characterizing the system's response for a given data.
Canalization and Symmetry in Boolean Models for Genetic Regulatory Networks
Creators: name: Reichhardt, C. J. Olson
name: Bassler, Kevin E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Canalization of genetic regulatory networks has been argued to be favored by evolutionary processes due to the stability that it can confer to phenotype expression. We explore whether a significant amount of canalization and partial canalization can arise in purely random networks in the absence of evolutionary pressures. We use a mapping of the Boolean functions in the Kauffman N-K model for genetic regulatory networks onto a k-dimensional Ising hypercube to show that the functions can be divided into different classes strictly due to geometrical constraints. The classes can be counted and their properties determined using results from group theory and isomer chemistry. We demonstrate that partially canalized functions completely dominate all possible Boolean functions, particularly for higher k. This indicates that partial canalization is extremely common, even in randomly chosen networks, and has implications for how much information can be obtained in experiments on native state genetic regulatory networks.
description: 14 pages, 4 figures; version to appear in J. Phys. A
Walking Droplets Through the Lens of Dynamical Systems
Creators: name: Rahman, Aminur
name: Blackmore, Denis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Over the past decade the study of fluidic droplets bouncing and skipping (or ``walking'') on a vibrating fluid bath has gone from an interesting experiment to a vibrant research field. The field exhibits challenging fluids problems, potential connections with quantum mechanics, and complex nonlinear dynamics. We detail advancements in the field of walking droplets through the lens of Dynamical Systems Theory, and outline questions that can be answered using dynamical systems analysis. The article begins by discussing the history of the fluidic experiments and their resemblance to quantum experiments. With this physics backdrop, we paint a portrait of the complex nonlinear dynamics present in physical models of various walking droplet systems. Naturally, these investigations lead to even more questions, and some unsolved problems that are bound to benefit from rigorous Dynamical Systems Analysis are outlined.
description: 19 pages, 12 figures
The Largest Russian Optical Telescope BTA: Current Status and Modernization Prospects
Creators: name: Kudryavtsev, D. O.
name: Vlasyuk, V. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Russian 6-m telescope (BTA), once the largest telescope in the world and now the largest optical telescope in Russia, has been successfully operating for almost 45 years. In this paper we briefly overview the observing methods the facility can currently provide, the ongoing projects on the development of scientific equipment, the status of the telescope among the world's and Russian astronomical communities, our ambitions to attract new users, and the prospects the observatory wishes to realize in the near future.
description: To be published in: I.I. Romanyuk, I.A. Yakunin, A.F. Valeev, and D.O. Kudryavtsev (eds), Ground-Based Astronomy in Russia. 21st Century, Proceedings of the All-Russian Conference, ISBN: 978-5-6045062-0-2
A Mass Formula from Light to Hypernuclei
Creators: name: Samanta, C.
name: Chowdhury, P. Roy
name: Basu, D. N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Simultaneous description of ordinary and hypernuclei masses by a single mass formula has been a great challenge in nuclear physics. Hyperon-separation energies of about forty Lambda($Λ$), three Lambda-Lambda($ΛΛ$), one Sigma($Σ$) and seven Cascade($Ξ$) hypernuclei have been experimentally found. Many of these nuclei are of light masses. We prescribe a new mass formula, called BWMH, which describes the normal and hypernuclei on the same footing. It is based on the modified-Bethe-Weizsäcker mass formula (BWM). BWM is basically an extension of the Bethe-Weizsäcker mass formula (BW) for light nuclei. The parameters of BWM were optimized by fitting about 3000 normal nuclei available recently. The original Bethe-Weizsäcker mass formula (BW) was designed for medium and heavy mass nuclei and it fails for light nuclei. Two earlier works on hypernuclei based on this BW show some limitations. The BWMH gives improved agreement with the experimental data for the line of stability, one-neutron separation energy versus neutron number spectra of normal nuclei, and the hyperon-separation energies from hypernuclei. The drip lines are modified for addition of a $Λ$ hyperon in a normal nucleus.
description: Presented at the "XXIX Mazurian Lakes Conference on Physics: Nuclear Physics and the Fundamental Processes, Piaski, Poland, August 30 - September 6, 2005." (7 pages, 1 Table, 1 Figure)
Additional file 1 of Clinical and molecular characterization of patients with adenylosuccinate lyase deficiency
Creators: name: Mastrogiorgio, Gerarda
name: Macchiaiolo, Marina
name: Buonuomo, Paola Sabrina
name: Bellacchio, Emanuele
name: Bordi, Matteo
name: Vecchio, Davide
name: Brown, Kari Payne
name: Watson, Natalie Karen
name: Contardi, Benedetta
name: Cecconi, Francesco
name: Tartaglia, Marco
name: Bartuli, Andrea
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1. ADSL variants in silico evaluation.
Initial Reports of the Deep Sea Drilling Project - Volume 93
Creators: name: van Hinte, J.E.
name: Wise, S.W., Jr.
name: The Leg 93 Science Party
Publisher: name: U.S. Government Printing Office
Year: 1987
Subjects: Deep Sea Drilling Project
Glomar Challenger
DSDP
Leg 93
Site 603
Site 604
Site 605
North American Basin
New Jersey Transect
Western North Atlantic Ocean
New Jersey Margin

description: This volume covers Leg 93 of the cruises of the Drilling Vessel Glomar Challenger. Glomar Challenger departed from Norfolk, Virginia, on May 4, 1983, to drill the upper and lower continental rise of the northwestern Atlantic Ocean on DSDP Leg 93, and returned to Norfolk on June 17, 1983. Six holes were drilled at three sites during Leg 93, not counting the unsuccessful attempt to emplace a reentry cone at Hole 603A. The original objective of this leg was to drill a deep hole through sediments at the foot of the continental rise and to sample Jurassic basement. It was hoped that one reentry hole would obtain a complete sedimentary record dating from the initial opening of the North Atlantic to the present, showing the development and sedimentation processes of the North American Basin. Drilling in Hole 603B recovered strata of Miocene to Early Cretaceous (Valanginian) age, but because of operations difficulties the last few hundred meters of Jurassic sediments above basement were not cored. Being unable to complete drilling and coring the stratigraphic section to basement at Site 603, Glomar Challenger was diverted to the upper continental rise off New Jersey, where it commenced drilling the New Jersey Transect at Sites 604 and 605. Two holes at Site 604 and one hole at Site 605 were drilled; when combined, these holes provide a detailed record of late Maestrichtian to Quaternary sedimentation. A highlight of Site 605 drilling was the recovery of a Cretaceous/Tertiary boundary section in Section 605-66-1.
A consistent variational formulation of Bishop nonlocal rods
Creators: name: Barretta, Raffaele
name: Faghidian, S. Ali
name: de Sciarra, Francesco Marotti
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Thick rods are employed in Nanotechnology to build modern electro mechanical systems. Design and optimization of such structures can be carried out by nonlocal continuum mechanics which is computationally convenient when compared to atomistic strategies. Bishop's kinematics is able to describe small-scale thick rods if a proper mathematical model of nonlocal elasticity is formulated to capture size effects. In all papers on the matter, nonlocal contributions are evaluated by replacing Eringen's integral convolution with the consequent (but not equivalent) differential equation governed by Helmholtz's differential operator. As notorious in integral equation theory, this replacement is possible for convolutions, defined in unbounded domains, governed by averaging kernels which are Green's functions of differential operators. Indeed, Eringen himself, in order to study nonlocal problems defined in unbounded domains, such as screw dislocations and wave propagations, suggested to replace integro-differential equations with differential conditions. A different scenario appears in Bishop rod mechanics where nonlocal integral convolutions are defined in bounded structural domains, so that Eringen's nonlocal differential equation has to be supplemented with additional boundary conditions. The objective is achieved by formulating the governing nonlocal equations by a proper variational statement. The new methodology provides an amendment of previous contributions in literature and is illustrated by investigating the elastostatic behavior of simple structural schemes. Exact solutions of Bishop rods are evaluated in terms of nonlocal parameter and cross-section gyration radius. Both hardening and softening structural responses are predictable with a suitable tuning of the parameters.
The Influence of Adhocracy Culture on Corporate Performance: An Examination of Hotels in Rivers State, Nigeria
Creators: name: Oluwaseun A., Adediran, Ph.D.
Publisher: name: noland journals
Year: 2024
Subjects: Adhocracy culture, Corporate Performance, Hospitalities.

description: The state of a country's hospitality sector regulates the progress of its inhabitants' wellbeing and quality of life. The Nigerian hospitality industry is challenged with matters that result in deprived service delivery. Therefore, this study seeks to ascertain the result of adhocracy culture on the performance of hospitals in Rivers State, Nigeria. The study was focused on resource-based view theory. Together descriptive and explanatory research projects were used. The study targeted 20 hotels in Rivers State, Nigeria. All the hotels were comprised in the study and consequently, it was a census. The unit of observation included 10 departmental heads from each hotel. A total of 200 respondents were anticipated to contribute to the study. Structured questionnaire was used to obtain primary data. Pilot data was used to measure the questionnaire’s reliability. Frequencies, percentages, means, and standard deviation were used in descriptive statistical analysis. Inferential statistics were used to determine how variables were related. It consisted of correlation and regression analysis to assess the relationship between the independent and dependent variable. The findings of the correlation analysis found out that adhocracy culture had a positive and significant relationship with corporate performance (r=0.640, p=0.000). Further, regression output indicated that adhocracy culture had a positive and significant effect on firm performance (β=.719, p=0.000).
title: Distributed machine learning framework on Akka
title: Σύστημα κατανεμημένης μηχανικής μάθησης στην πλατφόρμα Akka
Creators: name: Λαμπρινιδης Ιωαννης
Publisher: name: Technical University of Crete
Year: 2024

description: The proliferation of data-driven applications has led to a growing demand for efficient and scalable machine learning algorithms. This thesis delves into the design and implementation of a distributed communication kernel in Akka for the Online Machine Learning and Data Mining system(OMLDM), a system that supports distributed online learning by utilizing the Parameter Server paradigm, for effortlessly deploying Online Machine Learning pipelines on streaming platforms. The objective was the implementation of an efficient, scalable, fault tolerant and robust kernel for the OMLDM, to analyze the performance overhead of Akka by comparing it to a local implementation of the OMLDM kernel, that utilizes Java Threads; To evaluate the performance speedup achieved by the kernel in a cluster environment. We demonstrate through experiments the communication overhead of Akka and the performance of the kernel in local and clustered environments.
description: Η αυξανόμενη διάδοση των εφαρμογών που βασίζονται στα δεδομένα έχει οδηγήσει σε αυξανόμενη ζήτηση για αποτελεσματικούς και κλιμακωτούς αλγόριθμους μηχανικής μάθησης. Αυτή η διατριβή εμβαθύνει στο σχεδιασμό και την υλοποίηση ενός κατανεμημένου πυρήνα επικοινωνίας στο Akka για το σύστημα Online Machine Learning and Data Mining (OMLDM), ένα σύστημα που υποστηρίζει κατανεμημένη online μάθηση αξιοποιώντας την Parameter Server αρχιτεκτονική, για την ανάπτυξη Online Machine Learning pipelines σε πλατφόρμες ροής. Ο στόχος ήταν η υλοποίηση ενός αποτελεσματικού, κλιμακωτού, ανθεκτικού σε σφάλματα και ισχυρού πυρήνα για το OMLDM, η ανάλυση της επιβάρυνσης απόδοσης του Akka σε σύγκριση με μια τοπική υλοποίηση του πυρήνα του OMLDM που υλοποιήθηκε σε Java Threads και η αξιολόγηση της αύξησης της ταχύτητας απόδοσης που επιτυγχάνει ο πυρήνας σε ένα περιβάλλον cluster. Παρουσιάζεται μέσω πειραμάτων η επιβάρυνση επικοινωνίας που εισάγει το Akka και η απόδοση του πυρήνα σε τοπικά και clustered περιβάλλοντα.
The origin of exchange bias in multigranular non-collinear IrMn$_3$/CoFe thin films
Creators: name: Jenkins, Sarah
name: Chantrell, Roy W.
name: Evans, Richard F. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Antiferromagnetic spintronic devices have the potential to outperform conventional ferromagnetic devices due to their ultrafast dynamics and high data density. A challenge in designing these devices is the control and detection of the orientation of the anti-ferromagnet. One of the most promising ways to achieve this is through the exchange bias effect. This is of particular importance in large scale multigranular devices. Due to the large system sizes, previously, only micromagnetic simulations have been possible, these have an assumed distribution of antiferromagnetic anisotropy directions. Here, we use an atomistic model where the distribution of antiferromagnetic anisotropy directions occurs naturally and the exchange bias occurs due to the intrinsic disorder in the antiferromagnet. We perform large scale simulations, generating realistic values of exchange bias. We find a strong temperature dependance of the exchange bias, which approaches zero at the blocking temperature while the coercivity has a peak at the blocking temeprature due to the superparamagnetic flipping of the antiferromagnet during the hysteresis loop. We find a large discrepancy between the exchange bias predicted from a geometric model of the antiferromagnetic interface indicating the importance of grain edge effects in multigranular exchange biased systems. The grain size dependence shows the expected peak due to a competition between the superparamagnetic nature of small grains and reduction in the statistical imbalance in the number of interfacial spins for larger grain sizes. Our simulations confirm the existence of single antiferromagnetic domains within each grain. The model gives insights into the physical origin of exchange bias and provides a route to developing optimised nanoscale antiferromagnetic spintronic devices.
Additional file 2 of Clinical and molecular characterization of patients with adenylosuccinate lyase deficiency
Creators: name: Mastrogiorgio, Gerarda
name: Macchiaiolo, Marina
name: Buonuomo, Paola Sabrina
name: Bellacchio, Emanuele
name: Bordi, Matteo
name: Vecchio, Davide
name: Brown, Kari Payne
name: Watson, Natalie Karen
name: Contardi, Benedetta
name: Cecconi, Francesco
name: Tartaglia, Marco
name: Bartuli, Andrea
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Additional file 2. ADSL survey aimed to investigate clinical, biochemical, and molecular features of affected patients.
Dimming of supernovae and gamma ray busts by Compton Scattering and its cosmological implications
Creators: name: Zhang, Pengjie
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Free electrons deplete photons from type Ia supernovae through the (inverse) Compton scattering. This Compton dimming increases with redshift and reaches 0.004 mag at $z=1$ and 0.01 mag at $z=2$. Although far from sufficient to invalidate the existence of dark energy, it can bias constraint on dark energy at a level non-negligible for future supernova surveys. This effect is correctable and should be incorporated in supernova analysis. The Compton dimming has similar impact on cosmology based on gamma ray bursts as standard candles.
description: 3 pages, 3 figures. Minor revisions. Accepted to ApJ
An Empirical Background Model for the NICER X-ray Timing Instrument
Creators: name: Remillard, Ronald A.
name: Loewenstein, Michael
name: Steiner, James F.
name: Prigozhin, Gregory Y.
name: LaMarr, Beverly
name: Enoto, Teruaki
name: Gendreau, Keith C.
name: Arzoumanian, Zaven
name: Markwardt, Craig
name: Basak, Arkadip
name: Stevens, Abigail L.
name: Ray, Paul S.
name: Altamirano, Diego
name: Buisson, Douglas J. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: NICER has a comparatively low background rate, but it is highly variable, and its spectrum must be predicted using measurements unaffected by the science target. We describe an empirical, three-parameter model based on observations of seven pointing directions that are void of detectable sources. An examination of 3556 good time intervals (GTIs), averaging 570 s, yields a median rate (0.4-12 keV; 50 detectors) of 0.87 c/s, but in 5 percent (1 percent) of cases, the rate exceeds 10 (300) c/s. Model residuals persist at 20-30 percent of the initial rate for the brightest GTIs, implying one or more missing model parameters. Filtering criteria are given to flag GTIs likely to have unsatisfactory background predictions. With such filtering, we estimate a detection limit, 1.20 c/s (3 sigma, single GTI) at 0.4-12 keV, equivalent to 3.6e-12 erg/cm^2/s for a Crab-like spectrum. The corresponding limit for soft X-ray sources is 0.51 c/s at 0.3-2.0 keV, or 4.3e-13 erg/cm^2/s for a 100 eV blackbody. Faint-source filtering selects 85 percent of the background GTIs, and higher rates are expected for targets scheduled more favorably. An application of the model to 1 s timescale makes it possible to distinguish source flares from possible surges in the background.
description: 27 pages, 14 figures; submitted to the Astronomical Journal
Frequency conversion cascade by crossing multiple space and time interfaces
Creators: name: Apffel, Benjamin
name: Fort, Emmanuel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Physics (physics.class-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Time varying media recently emerged as promising candidates to fulfill the dream of controlling the wave frequency without nonlinear effects. However, frequency conversion remains limited by the dynamics of the variations of the propagation properties. Here we propose a new concept of space-time cascade to achieve arbitrary large frequency shifts by iterated elementary transformation cycles. These cycles use an intermediate medium in which wave packets enter and exit through non-commutative space and time interfaces. This concept avoids high frequency or sub-wavelength demanding metamaterials. Upward and downward frequency conversions are performed with 100% efficiency regardless of impedance matching. As an example, we implement this concept with water waves controlled by electrostriction and achieve frequency conversion cascades over a range of 4 octaves.
description: 4 figures
Toward a new wills variation act
Creators: name: Ramsay, David Peter
Publisher: name: University of British Columbia
Year: 2009

description: Most common law and civil law jurisdictions have laws in place to provide a safety net so that those who are unfairly disinherited will be able to claim a share in a deceased's estate. Since 1920, British Columbia has been one of those jurisdictions in which a testator's distribution scheme may be varied at the discretion of the Court. However, the absence of a stated purpose of the legislation, a broad judicial discretion to determine what is adequate provision for a spouse and children and the failure of the Supreme Court of Canada in Tataryn v. Tataryn to bring certainty and predictability to the law point to a need for reform. The goal of this thesis is to complete the sentence "the purpose of legislation restricting testamentary freedom is . . . . " and to make recommendations for legislative change to accomplish this purpose. An overview of the law in British Columbia today and the arguments for reform will be outlined in chapters 1, 2 and 3. Chapters 4 through 8 will examine a number of topics to extract policies which might assist in the formulation of a dependant's relief statute's purpose. Historical concepts, family, intestacy and wrongful death legislation as expressions of values will be reviewed. From the doctrine of unjust enrichment, a cause of action independent of a statute, a contract or a tort, but now widely used in claims between family members, will be extracted principles which recognize compensation for the contribution of services and money between family members. Empirical studies about testators' intentions, family and other private relations will be noted in chapter 9. Lastly, chapter 10 will make a number of recommendations for reform. These include: (a) A statement of the statute's purpose. Persons who have lived together in a relationship of some permanence with financial and emotional interdependence should share equally the assets acquired during their time together and the survivor's need for support should be recognized. Children's support needs should also be met but the testamentary autonomy of persons should be subject only to these two objectives. (b) The broadening of categories of claimants to include cohabitants and stepchildren with the introduction of age and dependency criteria for the latter. (c) Criteria to be used in making reasonable financial provision for spouses and children. (d) A priorities scheme. (e) The right to waive the statutory rights by agreement. No attempt is made to provide recommendations for all of the issues that would arise under a new statute.
A spectroscopically confirmed Gaia-selected sample of 318 new young stars within $\sim$200 pc
Creators: name: Žerjal, Maruša
name: Rains, Adam D.
name: Ireland, Michael J.
name: Zhou, George
name: Kammerer, Jens
name: Wallace, Alex
name: Orenstein, Brendan
name: Nordlander, Thomas
name: Abbot, Harrison
name: Chang, Seo-Won
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In the Gaia era, the majority of stars in the Solar neighbourhood have parallaxes and proper motions precisely determined while spectroscopic age indicators are still missing for a large fraction of low-mass young stars. In this work we select 756 overluminous late K and early M young star candidates in the southern sky and observe them over 64 nights with the ANU 2.3m Telescope at Siding Spring Observatory using the Echelle (R=24,000) and Wide Field spectrographs (WiFeS, R=3000-7000). Our selection is kinematically unbiased to minimize the preference against low-mass members of stellar associations that dissipate first, and to include potential members of diffuse components. We provide measurements of H$α$ and calcium H&K emission, as well as lithium absorption line, that enable identification of stars as young as $\sim$10-30 Myr which is a typical age of a stellar association. We report on 346 stars showing a detectable lithium line, 318 of which are not found in the known catalogs of young stars. We also report 126 additional stars in our sample which have no detectable lithium but signs of stellar activity indicating youth. Radial velocities are determined for WiFeS spectra with a precision of 3.2 $\mathrm{km\;s^{-1}}$ and 1.5 $\mathrm{km\;s^{-1}}$ for the Echelle sample.
description: Submitted to MNRAS. 15 pages, 12 figures
Ultrafast photomechanical transduction through thermophoretic implosion
Creators: name: Kavokine, Nikita
name: Zou, Shuangyang
name: Liu, Ruibin
name: Niguès, Antoine
name: Zou, Bingsuo
name: Bocquet, Lydéric
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Since the historical experiments of Crookes, the direct manipulation of matter by light has been both a challenge and a source of scientific debate. Here we show that laser illumination allows to displace a vial of nanoparticle solution over centimetre-scale distances. Cantilever-based force measurements show that the movement is due to millisecond long force spikes, which are synchronised with a sound emission. We observe that the nanoparticles undergo negative thermophoresis, while ultrafast imaging reveals that the force spikes are followed by the explosive growth of a bubble in the solution. We propose a mechanism accounting for the propulsion based on a thermophoretic instability of the nanoparticle cloud, analogous to the Jeans instability that occurs in gravitational systems. Our experiments demonstrate a new type of laser propulsion, and a remarkably violent actuation of soft matter, reminiscent of the strategy used by certain plants to propel their spores.
Moving object detection for visual odometry in a dynamic environment based on occlusion accumulation
Creators: name: Kim, Haram
name: Kim, Pyojin
name: Kim, H. Jin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Detection of moving objects is an essential capability in dealing with dynamic environments. Most moving object detection algorithms have been designed for color images without depth. For robotic navigation where real-time RGB-D data is often readily available, utilization of the depth information would be beneficial for obstacle recognition. Here, we propose a simple moving object detection algorithm that uses RGB-D images. The proposed algorithm does not require estimating a background model. Instead, it uses an occlusion model which enables us to estimate the camera pose on a background confused with moving objects that dominate the scene. The proposed algorithm allows to separate the moving object detection and visual odometry (VO) so that an arbitrary robust VO method can be employed in a dynamic situation with a combination of moving object detection, whereas other VO algorithms for a dynamic environment are inseparable. In this paper, we use dense visual odometry (DVO) as a VO method with a bi-square regression weight. Experimental results show the segmentation accuracy and the performance improvement of DVO in the situations. We validate our algorithm in public datasets and our dataset which also publicly accessible.
description: 7 pages