cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Dark Side of Pluto
Creators: name: Lauer, Tod R.
name: Spencer, John R.
name: Bertrand, Tanguy
name: Beyer, Ross A.
name: D, Kirby
name: Runyon
name: L, Oliver
name: White
name: Young, Leslie A.
name: Ennico, Kimberly
name: McKinnon, William B.
name: Moore, Jeffrey M.
name: Olkin, Catherine B.
name: Stern, S. Alan
name: Weaver, Harold A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: During its departure from Pluto, New Horizons used its LORRI camera to image a portion of Pluto's southern hemisphere that was in a decades-long seasonal winter darkness, but still very faintly illuminated by sunlight reflected by Charon. Recovery of this faint signal was technically challenging. The bright ring of sunlight forward-scattered by haze in the Plutonian atmosphere encircling the nightside hemisphere was severely overexposed, defeating the standard smeared-charge removal required for LORRI images. Reconstruction of the overexposed portions of the raw images, however, allowed adequate corrections to be accomplished. The small solar elongation of Pluto during the departure phase also generated a complex scattered-sunlight background in the images that was three orders of magnitude stronger than the estimated Charon-light flux (the Charon-light flux is similar to the flux of moonlight on Earth a few days before first quarter). A model background image was constructed for each Pluto image based on principal component analysis (PCA) applied to an ensemble of scattered-sunlight images taken at identical Sun-spacecraft geometry to the Pluto images. The recovered Charon-light image revealed a high-albedo region in the southern hemisphere. We argue that this may be a regional deposit of N_2 or CH_4 ice. The Charon-light image also shows that the south polar region currently has markedly lower albedo than the north polar region of Pluto, which may reflect the sublimation of N_2 ice or the deposition of haze particulates during the recent southern summer.
description: 24 pages, 10 figures, published in the Planetary Science Journal
Delirium and Its Sequelae in Hospitalized Older Adults Admitted from the Emergency Department to Inpatient Units
Creators: name: Mahjoub, Linda Ruhi
Publisher: name: Zenodo
Year: 2019

description: Objective: The purpose of this study was to report the incidence of delirium and its association with length of stay (LOS), discharge destination, and functional level at the time of discharge among hospitalized older patients 65 years and older who were admitted to non-intensive care units (non-ICU) through the emergency department (ED). A further aim was to describe associations between unrecognized delirium and the use of sitters, restraints, and nurse observed delirium. Method: A prospective cohort study was conducted from September to November 2018 in a 500-bed community hospital located in southern California. The Confusion Assessment Method (CAM-ICU) and the cognition assessment test, Month of The Year Backward (MOTYB), were used to evaluate the cognitive state of the patients. Evaluation was initiated in the ED or within the first 12 hours of admission to non-ICU floors and continued for three consecutive days during patients’ hospital stay. Patients were identified as delirium positive if they were assessed using the CAM-ICU to be positive on any day of assessment. Patient functional levels were measured using the Katz Activities of Daily Living (Katz ADL). Patient LOS, discharge destination, use of sitters and restraints, and nurse observed delirium were collected from the electronic medical record. Findings: Out of 430 eligible patients, 204 consented to participate. Among participants, 146 (76.6%) had negative delirium assessment (never assessed as delirium positive), and 55 (27%) patients had at least one incident of delirium. The LOS (p = iv .003), discharge destination (p = .002), and functional level (p < .0001) had significant associations with delirium incidence. There were also significant relationships between delirium incidence with age (p = .039), altered level of consciousness (LOC) at home (p < .0001), the use of sitters (p = .018), and the use of restraints (p < .0001). Nurses in nonICU units documented the change of mental status or confusion in 12 (5.9%) patients out of 55 who were delirium positive, Phi (φ) = .318, p < .0001. Conclusions: Delirium occurs in the hospital setting; its management is costly, and long-term consequences may be irreversible. Developing a multidisciplinary delirium management program that includes screening in the emergency department and non-ICU units may be useful in helping organizations to manage delirium proactively.
Charged Axially Symmetric Solution and Energy in Teleparallel Theory Equivalent to General Relativity
Creators: name: Nashed, Gamal Gergess Lamee
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An exact charged solution with axial symmetry is obtained in the teleparallel equivalent of general relativity (TEGR). The associated metric has the structure function $G(ξ)=1-ξ^2-2mAξ^3-q^2A^2ξ^4$. The fourth order nature of the structure function can make calculations cumbersome. Using a coordinate transformation we get a tetrad whose metric has the structure function in a factorisable form $(1-ξ^2)(1+r_{+}Aξ)(1+r_{-}Aξ)$ with $r_{\pm}$ as the horizons of Reissner-Nordstr$\ddot{o}$m space-time. This new form has the advantage that its roots are now trivial to write down. Then, we study the singularities of this space-time. Using another coordinate transformation, we obtain a tetrad field. Its associated metric yields the Reissner-Nordstr$\ddot{o}$m black hole. In Calculating the energy content of this tetrad field using the gravitational energy-momentum, we find that the resulting form depends on the radial coordinate! Using the regularized expression of the gravitational energy-momentum in the teleparallel equivalent of general relativity we get a consistent value for the energy.
description: 15 pages, Latex
Narrow-band surveys for very high redshift Lyman-alpha emitters
Creators: name: Nilsson, Kim K.
name: Orsi, Alvaro
name: Lacey, Cedric G.
name: Baugh, Carlton M.
name: Thommes, Eduard
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context: Many current and future surveys aim to detect the highest redshift (z >~ 7) sources through their Lyman-alpha (Ly-alpha) emission, using the narrow-band imaging method. However, to date the surveys have only yielded non-detections and upper limits as no survey has reached the necessary combination of depth and area to detect these very young star forming galaxies. Aims: We aim to calculate model luminosity functions and mock surveys of Ly-alpha emitters at z >~ 7 based on a variety of approaches. Methods: We calculate model luminosity functions at different redshifts based on three different approaches: a semi-analytical model based on CDM, a simple phenomenological model, and an extrapolation of observed Schechter functions at lower redshifts. The results of the first two models are compared with observations made at redshifts z ~ 5.7 and z ~ 6.5, and they are then extrapolated to higher redshift. Results: We present model luminosity functions for redshifts between z = 7 - 12.5 and give specific number predictions for future planned or possible narrow-band surveys for Ly-alpha emitters. We also investigate what constraints future observations will be able to place on the Ly-alpha luminosity function at very high redshift. Conclusion: It should be possible to observe z = 7 - 10 Ly-alpha emitters with present or near-future instruments if enough observing time is allocated. In particular, large area surveys such as ELVIS (Emission Line galaxies with VISTA Survey) will be useful in collecting a large sample. However, to get a large enough sample to constrain well the z >= 10 Ly-alpha luminosity function, instruments further in the future, such as an ELT, will be necessary.
description: 8 pages, 4 figures, 3 tables, Accepted in A&A, best printed in colour
Letter from Kathleen Raine to Robin Skelton, August 11, [1970]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Editors
valueUri: http://id.worldcat.org/fast/902475
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Neoplatonism
valueUri: http://id.worldcat.org/fast/1035884
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: Philosophy
valueUri: http://id.worldcat.org/fast/1060777
subject: FOS: Philosophy, ethics and religion
subject: Platonists
valueUri: http://id.worldcat.org/fast/1066881
subject: Wiccans
valueUri: http://id.worldcat.org/fast/1765210
subject: Critics
valueUri: http://id.worldcat.org/fast/883769

description: Part of a collection of correspondence from Kathleen Raine to Robin Skelton. Skelton was a British poet, academic, anthologist, and practicing Wiccan. He taught at Manchester University before emigrating to Canada in 1963, where he taught creative writing at the University of Victoria and started the literary magazine The Malahat Review. Also included are some letters to Skelton’s wife Sylvia, and his daughters. Spanning close to forty-five years, the correspondence discusses poetry, writing, and philosophy; particularly Platonism and Neoplatonism. Raine often refers to the writings of William Blake and W. B. Yeats. Many letters also mention contemporary literary figures at the time including: Herbert Read, Peter Russell, Liam Miller, and Thurairajah Tambimuttu. In this letter, Raine writes about descriptions of character, the Chelsea Arts Club, and her current work.
Separability and Entanglement of Quantum States Based on Covariance Matrices
Creators: name: Li, Ming
name: Fei, Shao-Ming
name: Wang, Zhi-Xi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the separability of quantum states based on covariance matrices. Separability criteria are presented for multipartite states. The lower bound of concurrence proposed in Phys. Rev. A. 75, 052320 (2007) is improved by optimizing the local orthonormal observables.
description: 11 pages
Discontinuous Galerkin and $C^0$-IP finite element approximation of periodic Hamilton--Jacobi--Bellman--Isaacs problems with application to numerical homogenization
Creators: name: Kawecki, Ellya L.
name: Sprekeler, Timo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35B27, 35J60, 65N12, 65N15, 65N30

description: In the first part of the paper, we study the discontinuous Galerkin (DG) and $C^0$ interior penalty ($C^0$-IP) finite element approximation of the periodic strong solution to the fully nonlinear second-order Hamilton--Jacobi--Bellman--Isaacs (HJBI) equation with coefficients satisfying the Cordes condition. We prove well-posedness and perform abstract a posteriori and a priori analyses which apply to a wide family of numerical schemes. These periodic problems arise as the corrector problems in the homogenization of HJBI equations. The second part of the paper focuses on the numerical approximation to the effective Hamiltonian of ergodic HJBI operators via DG/$C^0$-IP finite element approximations to approximate corrector problems. Finally, we provide numerical experiments demonstrating the performance of the numerical schemes.
description: 25 pages
On the relation between the Schmidt and Kennicutt-Schmidt star formation laws and its implications for numerical simulations
Creators: name: Schaye, Joop
name: Vecchia, Claudio Dalla
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: When averaged over large scales, star formation in galaxies is observed to follow the empirical Kennicutt-Schmidt (KS) law for surface densities above a constant threshold. While the observed law involves surface densities, theoretical models and simulations generally work with volume density laws (i.e. Schmidt laws). We derive analytic relations between star formation laws expressed in terms of surface densities, volume densities, and pressures and we show how these relations depend on parameters such as the effective equation of state of the multiphase interstellar medium. Our analytic relations enable us to implement observed surface density laws into simulations. Because the parameters of our prescription for star formation are observables, we are not free to tune them to match the observations. We test our theoretical framework using high-resolution simulations of isolated disc galaxies that assume an effective equation of state for the multiphase interstellar medium. We are able to reproduce the star formation threshold and both the slope and the normalisation of arbitrary input KS laws without tuning any parameters and with very little scatter, even for unstable galaxies and even if we use poor numerical resolution. Moreover, we can do so for arbitrary effective equations of state. Our prescription therefore enables simulations of galaxies to bypass our current inability to simulate the formation of stars. On the other hand, the fact that we can reproduce arbitrary input thresholds and KS laws, rather than just the particular ones picked out by nature, indicates that simulations that lack the physics and/or resolution to simulate the multiphase interstellar medium can only provide limited insight into the origin of the observed star formation laws.
description: Accepted for publication in MNRAS, 14 pages and 9 figures. Minor changes
Enhancing Gravitational Interaction between Quantum Systems by a Massive Mediator
Creators: name: Pedernales, Julen S.
name: Streltsov, Kirill
name: Plenio, Martin B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In 1957 Feynman suggested that the quantum/classical character of gravity may be assessed by testing the gravitational interaction due to source masses in superposition. However, in all proposed experimental realisations using matter-wave interferometry the extreme weakness of this interaction requires pure initial states with extreme squeezing to achieve measurable effects of non-classical interaction for reasonable experiment durations. In practice, the systems that can be prepared in such nonclassical states are limited to small masses, which in turn limits the strength of their interaction. Here we address this key challenge--the weakness of gravitational interaction--by using a massive body as an amplifying mediator of gravitational interaction between two test systems. Our analysis shows that this results in an effective interaction between the two test-systems that grows with the mass of the mediator, is independent of its initial state and, therefore, its temperature. This greatly reduces the requirement on the mass and degree of delocalization of the test systems and, while still highly challenging, brings experiments on gravitational source masses a step closer to reality.
description: 6 + 4(supplemental) pages, 2 figures, matches published version
A New Approach for Semantic Web Matching
Creators: name: Zamanifar, Kamran
name: Heidari, Golsa
name: Nematbakhsh, Naser
name: Mardookhi, Farhad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In this work we propose a new approach for semantic web matching to improve the performance of Web Service replacement. Because in automatic systems we should ensure the self-healing, self-configuration, self-optimization and self-management, all services should be always available and if one of them crashes, it should be replaced with the most similar one. Candidate services are advertised in Universal Description, Discovery and Integration (UDDI) all in Web Ontology Language (OWL). By the help of bipartite graph, we did the matching between the crashed service and a Candidate one. Then we chose the best service, which had the maximum rate of matching. In fact we compare two services` functionalities and capabilities to see how much they match. We found that the best way for matching two web services, is comparing the functionalities of them.
description: 9 pages, 6 figures, SUComS 2010
High resolution radio continuum survey of M33: I. The radio maps
Creators: name: Tabatabaei, F. S.
name: Krause, M.
name: Beck, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the exponential scale length of total radio emission, the spectral index distribution, and the linear radio polarization in the Scd galaxy M33. Observations were carried out using the 3.6 cm dual channel and the 6.2 cm four channel receivers of the 100--m Effelsberg telescope along with the L-band VLA D--array at 20 cm. High spatial resolution and sensitivity in both total and linearly polarized radio continuum emission from M33 were achieved. We found considerable extended emission, not only from the main arms I S and I N, but also from the weaker arms. The large--scale magnetic field exhibits well--ordered spiral structure with almost the same orientation as that of the optical spiral arms, however, it does not show a clear structural correlation or anti--correlation with the optical arms. There is a north-south asymmetry in polarization that is frequency-dependent. We found that the ring mean spectral index versus radius increases faster beyond $R$ = 4 kpc. At each wavelength, the exponential scale length is larger inside than outside $R$ = 4 kpc. From the larger scales lengths at $R$ $
description: 16 pages, 13 figures, accepted for publication in the Astronomy and Astrophysics Journal
New constraints on the minimum mass for thermonuclear lithium burning in brown dwarfs
Creators: name: Martín, Eduardo L.
name: Lodieu, Nicolas
name: del Burgo, Carlos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The theory of substellar evolution predicts that there is a sharp mass boundary between lithium and non-lithium brown dwarfs, not far below the substellar-mass limit. The imprint of thermonuclear burning is carved on the surface lithium abundance of substellar-mass objects during the first few hundred million years of their evolution, leading to a sharp boundary between lithium and non-lithium brown dwarfs, so-called, the lithium test. New optical spectroscopic observations of the binaries DENIS+J063001.4-184014 and DENIS+J225210.7-173013 obtained using the 10.4-m Gran Telescopio de Canarias are reported here. They allow us to re-determine their combined optical spectral types (M9.5 and L6.5, respectively) and to search for the presence of the LiI resonance doublet. The non detection of the LiI feature in the combined spectrum of DENIS\,J063001.4$-$184014AB is converted into estimates for the depletion of lithium in the individual components of this binary system. In DENIS\,J225210.7$-$173013AB we report the detection of a weak LiI feature which we tentatively ascribe as arising from the contribution of the T3.5-type secondary. Combining our results with data for seven other brown dwarf binaries in the literature treated in a self-consistent way, we confirm that there is indeed a sharp transition in mass for lithium depletion in brown dwarfs, as expected from theoretical calculations. We estimate such mass boundary is observationally located at 51.48$^{+0.22}_{-4.00}$ $M_\mathrm{Jup}$, which is lower than the theoretical determinations.
description: 12 pages, 6 figures, accepted for publication in MNRAS
Vibronic spectroscopy of an artificial molecule
Creators: name: Gunnarsson, David
name: Tuorila, Jani
name: Paila, Antti
name: Sarkar, Jayanta
name: Thuneberg, Erkki
name: Makhlin, Yuriy
name: Hakonen, Pertti
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: With advanced fabrication techniques it is possible to make nanoscale electronic structures that have discrete energy levels. Such structures are called artificial atoms because of analogy with true atoms. Examples of such atoms are quantum dots in semiconductor heterostructures and Josephson-junction qubits. It is also possible to have artificial atoms interacting with each other. This is an artificial molecule in the sense that the electronic states are analogous to the ones in a molecule. In this letter we present a different type of artificial molecule that, in addition to electronic states, also includes the analog of nuclear vibrations in a diatomic molecule. Some of the earlier experiments could be interpreted using this analogy, including qubits coupled to oscillators and qubits driven by an intense field. In our case the electronic states of the molecule are represented by a Josephson-junction qubit, and the nuclear separation corresponds to the magnetic flux in a loop containing the qubit and an LC oscillator. We probe the vibronic transitions, where both the electronic and vibrational states change simultaneously, and find that they are analogous to true molecules. The vibronic transitions could be used for sideband cooling of the oscillator, and we see damping up to sidebands of order 10.
description: 5 pages, 4 figures
Adaptive Large Neighborhood Search for Vehicle Routing Problems with Transshipment Facilities Arising in City Logistics
Creators: name: Friedrich, Christian
name: Elbert, Ralf
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In this paper, we investigate vehicle routing problems with third-party transshipment facilities that arise in the context of city logistics. Contrary to classical vehicle routing problems, where each customer request is delivered directly to its destination, the problems considered in this paper feature the alternative possibility of delivering customer requests to third-party transshipment facilities, such as urban consolidation centers, for a fee. We present an adaptive large neighborhood search with an embedded random variable neighborhood descent as a local search component and a set-partitioning problem for the recombination of routes to solve various versions of the problem. Thereby, we consider location-dependent time windows as well as heterogeneous fleets and propose several new procedures that consider transshipment facilities within the components of our adaptive large neighborhood search. The proposed method is tested on benchmark instances from the literature as well as newly created benchmark instances. It shows promising results, leading to multiple improvements over existing algorithms from the literature. Moreover, a real-world study is presented to gain managerial insights on the impact of transshipment fees, order size, and heterogeneous fleets on the transshipment decisions.
A fluid reservoir model for the Age of Information through energy-harvesting transmitters
Creators: name: Koukoutsidis, Ioannis Z.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: We apply a fluid-reservoir model to study the Age-of-Information (AoI) of update packets through energy-harvesting transmitters. The model is closer to how energy is stored and depleted in reality, and can reveal the system behavior for different settings of packet arrival rates, service rates, and energy charging and depletion rates. We present detailed results for both finite and infinite transmitter buffers and an infinite energy reservoir, and some indicative results for a finite reservoir. The results are derived for the mean AoI in the case of an infinite transmitter buffer and an infinite reservoir, and for the mean peak AoI for the remaining cases. The results show that, similar to a system without energy constraints, the transmitter buffer should be kept to a minimum in order to avoid queueing delays and maintain freshness of updates. Furthermore, a high update packet rate is only helpful in energy-rich regimes, whereas in energy-poor regimes more frequent updates deplete the energy reservoir and result in higher AoI values.
description: 17 pages, 4 figures
Controlling Solvent Quality by Time: Self-Avoiding Sprints in Nonequilibrium Polymerization
Creators: name: Bley, Michael
name: Baul, Upayan
name: Dzubiella, Joachim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: A fundamental paradigm in polymer physics is that macromolecular conformations in equilibrium can be described by universal scaling laws, being key for structure, dynamics, and function of soft (biological) matter and in the materials sciences. Here, we reveal that during diffusion-influenced, nonequilibrium chain-growth polymerization, scaling laws change qualitatively, in particular, the growing polymers exhibit a surprising self-avoiding walk (SAW) behavior in poor and theta-solvents. Our analysis, based on monomer-resolved reaction-diffusion computer simulations, demonstrates that this phenomenon is a result of i) nonequilibrium monomer density depletion correlations around the active polymerization site, leading to a locally directed and self-avoiding growth, in conjunction with ii) chain (Rouse) relaxation times larger than the competing polymerization reaction time. These intrinsic nonequilibrium mechanisms are facilitated by fast and persistent reaction-driven diffusion (sprints) of the active site, with analogies to pseudo-chemotactic active Brownian particles. Our findings have implications for time-controlled structure formation in polymer processing, as in, e.g., reactive self-assembly, photo-crosslinking, and 3D printing.
description: 15 pages, 8 figures
Binary black hole merger: symmetry and the spin expansion
Creators: name: Boyle, Latham
name: Kesden, Michael
name: Nissanke, Samaya
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We regard binary black hole (BBH) merger as a map from a simple initial state (two Kerr black holes, with dimensionless spins {\bf a} and {\bf b}) to a simple final state (a Kerr black hole with mass m, dimensionless spin {\bf s}, and kick velocity {\bf k}). By expanding this map around {\bf a} = {\bf b} = 0 and applying symmetry constraints, we obtain a simple formalism that is remarkably successful at explaining existing BBH simulations. It also makes detailed predictions and suggests a more efficient way of mapping the parameter space of binary black hole merger. Since we rely on symmetry rather than dynamics, our expansion complements previous analytical techniques.
description: 4 pages, 4 figures, matches Phys. Rev. Lett. version
Spatial and kinematic alignments between central and satellite halos
Creators: name: Faltenbacher, A.
name: Jing, Y. P.
name: Li, Cheng
name: Mao, Shude
name: Mo, H. J.
name: Pasquali, Anna
name: Bosch, Frank C. van den
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Based on a cosmological N-body simulation we analyze spatial and kinematic alignments of satellite halos within six times the virial radius of group size host halos (Rvir). We measure three different types of spatial alignment: halo alignment between the orientation of the group central substructure (GCS) and the distribution of its satellites, radial alignment between the orientation of a satellite and the direction towards its GCS, and direct alignment between the orientation of the GCS and that of its satellites. In analogy we use the directions of satellite velocities and probe three further types of alignment: the radial velocity alignment between the satellite velocity and connecting line between satellite and GCS, the halo velocity alignment between the orientation of the GCS and satellite velocities and the auto velocity alignment between the satellites orientations and their velocities. We find that satellites are preferentially located along the major axis of the GCS within at least 6 Rvir (the range probed here). Furthermore, satellites preferentially point towards the GCS. The most pronounced signal is detected on small scales but a detectable signal extends out to 6 Rvir. The direct alignment signal is weaker, however a systematic trend is visible at distances < 2 Rvir. All velocity alignments are highly significant on small scales. Our results suggest that the halo alignment reflects the filamentary large scale structure which extends far beyond the virial radii of the groups. In contrast, the main contribution to the radial alignment arises from the adjustment of the satellite orientations in the group tidal field. The projected data reveal good agreement with recent results derived from large galaxy surveys. (abridged)
description: accepted for publication in ApJ
Ways to Improve Legislation on the Activities of Customer Brokers
Creators: name: O.M. Shevchuk, V.O. Tserkovna
Publisher: name: Zenodo
Year: 2019
Subjects: customs brokers, importers, goods declaration, customs, customs clearance, customs mediation, foreign trade, transactions.

description: The article focuses on the process of becoming customs brokers. Since the proclamation of the independence of the Ukrainian state, the institution of customs clearance has gone its own way of development. With the pace of world trade, the countries of Europe and the country of communication, with this importance, the instant clearance of goods and vehicles may be identified as contributing to expanding the possibilities of providing customs clearance services. In this context, the effectiveness of the customs officer is crucial, not only for the financial sector but also for economic development - and change in the customs system in Ukraine turns into macroeconomic indicators.

It is emphasized that the sphere of customs-brokerage services primarily aims to defend the interests of foreign economic entities and increase the speed of implementation of foreign trade agreements, the speed of movement of goods and vehicles for commercial purposes through the customs border of Ukraine, as well as counteracting smuggling and replenishing of the state budget.

The author specifies the requirement for obtaining permit documents by enterprises from the State Fiscal Service of Ukraine and analyzes the subjectivity of enterprises that may receive a permit for customs brokerage activities and identify some deficiencies in the legislation. Also, comparing the experience of foreign countries, the absence of any financial guarantees in Ukraine for paying customs duties by customs brokers have been revealed, which entails risks of non-fulfillment of obligations and violations of the legislation, and as a result, non-receipt of funds to the budget and bringing to administrative liability customs brokers.

Extension of scientific researches concerning ways of improvement of customs brokerage activity and substantiation of legislative and practical aspects of such activity for the improvement of their functioning in foreign trade and promotion of commodity producers' activities are made. It is considered that high professionalism and deep knowledge of customs agents in the field of a declaration is a positive element for improving the legislation and the necessary assistance to legislative bodies in its law-making activity.
The SOPHIE search for northern extrasolar planets. XVIII: Six new cold Jupiters, including one of the most eccentric exoplanet orbits
Creators: name: Demangeon, O. D. S.
name: Dalal, S.
name: Hébrard, G.
name: Nsamba, B.
name: Kiefer, F.
name: Camacho, J. D.
name: Sahlmann, J.
name: Arnold, L.
name: Astudillo-Defru, N.
name: Bonfils, X.
name: Boisse, I.
name: Bouchy, F.
name: Bourrier, V.
name: Campante, T.
name: Delfosse, X.
name: Deleuil, M.
name: Díaz, R. F.
name: Faria, J.
name: Forveille, T.
name: Hara, N.
name: Heidari, N.
name: Hobson, M. J.
name: Lopez, T.
name: Moutou, C.
name: Rey, J.
name: Santerne, A.
name: Sousa, S.
name: Santos, N. C.
name: Strøm, P. A.
name: Tsantaki, M.
name: Udry, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Context. Due to their low transit probability, the long-period planets are, as a population, only partially probed by transit surveys. Radial velocity surveys thus have a key role to play, in particular for giant planets. Cold Jupiters induce a typical radial velocity semi-amplitude of 10m.s^{-1}, which is well within the reach of multiple instruments that have now been in operation for more than a decade. Aims. We take advantage of the ongoing radial velocity survey with the sophie high-resolution spectrograph, which continues the search started by its predecessor elodie to further characterize the cold Jupiter population. Methods. Analyzing the radial velocity data from six bright solar-like stars taken over a period of up to 15 years, we attempt the detection and confirmation of Keplerian signals. Results. We announce the discovery of six planets, one per system, with minimum masses in the range 2.99-8.3 Mjup and orbital periods between 200 days and 10 years. The data do not provide enough evidence to support the presence of additional planets in any of these systems. The analysis of stellar activity indicators confirms the planetary nature of the detected signals. Conclusions. These six planets belong to the cold and massive Jupiter population, and four of them populate its eccentric tail. In this respect, HD 80869 b stands out as having one of the most eccentric orbits, with an eccentricity of 0.862^{+0.028}_{-0.018}. These planets can thus help to better constrain the migration and evolution processes at play in the gas giant population. Furthermore, recent works presenting the correlation between small planets and cold Jupiters indicate that these systems are good candidates to search for small inner planets.
description: 24 pages, 12 figures, Accepted for publication in Astronomy & Astrophysics
Letter from Kathleen Raine to Robin Skelton, September 22, [between 1970 and 1979]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Platonists
valueUri: http://id.worldcat.org/fast/1066881
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Neoplatonism
valueUri: http://id.worldcat.org/fast/1035884
subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Philosophy
valueUri: http://id.worldcat.org/fast/1060777
subject: FOS: Philosophy, ethics and religion
subject: Wiccans
valueUri: http://id.worldcat.org/fast/1765210
subject: Editors
valueUri: http://id.worldcat.org/fast/902475
subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: Critics
valueUri: http://id.worldcat.org/fast/883769
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Part of a collection of correspondence from Kathleen Raine to Robin Skelton. Skelton was a British poet, academic, anthologist, and practicing Wiccan. He taught at Manchester University before emigrating to Canada in 1963, where he taught creative writing at the University of Victoria and started the literary magazine The Malahat Review. Also included are some letters to Skelton’s wife Sylvia, and his daughters. Spanning close to forty-five years, the correspondence discusses poetry, writing, and philosophy; particularly Platonism and Neoplatonism. Raine often refers to the writings of William Blake and W. B. Yeats. Many letters also mention contemporary literary figures at the time including: Herbert Read, Peter Russell, Liam Miller, and Thurairajah Tambimuttu. In this letter, Raine discusses translations of several of her works and the passing of a friend.
Rural Populations: Using Performance Studies to Understand Treatment and Access to Care Teaching Guide
Creators: name: Sufian, Sandra
name: Case, Gretchen
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: subject: 111717 Primary Health Care
subject: FOS: Health sciences
subject: 111708 Health and Community Services
subject: 111799 Public Health and Health Services not elsewhere classified
subject: Health Care
subject: 190404 Drama, Theatre and Performance Studies
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 110305 Emergency Medicine
subject: FOS: Clinical medicine

description: The Health Humanities Portrait, Rural Populations: Using Performance Studies to Understand Treatment and Access to Care, identifies the challenges and differences related to privacy and geographical access in the delivery of health care in a rural or remote setting.
Common Envelope Mergers: A Possible Channel for Forming Single sdB Stars
Creators: name: Politano, Michael
name: Taam, Ronald E.
name: van der Sluys, Marc
name: Willems, Bart
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We quantify an evolutionary channel for single sdB stars based on mergers of binaries containing a red giant star and a lower mass main sequence or brown dwarf companion in our Galaxy. Population synthesis calculations that follow mergers during the common envelope phase of evolution of such systems reveal a population of rapidly rotating horizontal branch stars with a distribution of core masses between 0.32 Mo - 0.7 Mo that is strongly peaked between 0.47 Mo - 0.54 Mo. The high rotation rates in these stars are a natural consequence of the orbital angular momentum deposition during the merger and the subsequent stellar contraction of the merged object from the tip of the red giant branch. We suggest that centrifugally enhanced mass loss facilitated by the rapid rotation of these stars may lead to the formation of single sdB stars for some of these objects.
description: 13 pages, 2 figures, 1 table, accepted to Astrophysical Journal Letters
Visualization of optical polarization transfer to photoelectron spin vector emitted from the spin-orbit coupled surface state
Creators: name: Kuroda, Kenta
name: Yaji, Koichiro
name: Noguchi, Ryo
name: Harasawa, Ayumi
name: Shin, Shik
name: Kondo, Takeshi
name: Komori, Fumio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Similar to light polarization that is selected by a superposition of optical basis, electron spin direction can be controlled through a superposition of spin basis. We investigate such a spin interference occurring in photoemission of the spin-orbit coupled surface state in Bi2Se3 by using spin- and angle-resolved photoemission spectroscopy combined with laser light source (laser-SARPES). Our laser-SARPES with three-dimensional spin detection and tunable laser polarization including elliptical and circular polarization enables us to directly visualize how the direction of the fully-polarized photoelectron spin changes according to the optical phase and orientation of the incident laser polarization. By this advantage of our laser-SARPES, we demonstrate that such optical information can be projected to the three-dimensional spin vector of the photoelectrons. Our results, therefore, present a novel spin-polarized electron source permitting us to optically control the pure spin state pointing to the arbitrary direction.
description: 3 figures
Letter from Kathleen Raine to Robin Skelton, November 19, [1970?]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Philosophy
valueUri: http://id.worldcat.org/fast/1060777
subject: FOS: Philosophy, ethics and religion
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Editors
valueUri: http://id.worldcat.org/fast/902475
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Platonists
valueUri: http://id.worldcat.org/fast/1066881
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Wiccans
valueUri: http://id.worldcat.org/fast/1765210
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Neoplatonism
valueUri: http://id.worldcat.org/fast/1035884
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Critics
valueUri: http://id.worldcat.org/fast/883769

description: Part of a collection of correspondence from Kathleen Raine to Robin Skelton. Skelton was a British poet, academic, anthologist, and practicing Wiccan. He taught at Manchester University before emigrating to Canada in 1963, where he taught creative writing at the University of Victoria and started the literary magazine The Malahat Review. Also included are some letters to Skelton’s wife Sylvia, and his daughters. Spanning close to forty-five years, the correspondence discusses poetry, writing, and philosophy; particularly Platonism and Neoplatonism. Raine often refers to the writings of William Blake and W. B. Yeats. Many letters also mention contemporary literary figures at the time including: Herbert Read, Peter Russell, Liam Miller, and Thurairajah Tambimuttu. In this letter, Raine shares that she has recently been writing poetry, and wonders if the University of Victoria would be interested in purchasing her collection.
First direct observation of isomeric decay in neutron-rich odd-odd $^{186}$Ta
Creators: name: Watanabe, Y. X.
name: Walker, P. M.
name: Hirayama, Y.
name: Mukai, M.
name: Watanabe, H.
name: Lane, G. J.
name: Ahmed, M.
name: Brunet, M.
name: Hashimoto, T.
name: Ishizawa, S.
name: Kimura, S.
name: Kondev, F. G.
name: Litvinov, Yu. A.
name: Miyatake, H.
name: Moon, J. Y.
name: Niwase, T.
name: Oyaizu, M.
name: Park, J. H.
name: Podolyák, Zs.
name: Rosenbusch, M.
name: Schury, P.
name: Wada, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: De-excitation $γ$ rays associated with an isomeric state of $^{186}$Ta were investigated. The isomers were produced in multinucleon transfer reactions between a $^{136}$Xe beam and a natural W target, and were collected and separated by the KEK Isotope Separation System. Two $γ$ transitions with energies of 161.1(2) and 186.8(1) keV associated with an isomeric decay were observed for the first time. The half-life of the isomeric state of the neutral atom $^{186 \rm m}$Ta was deduced as 17(2) s. Based on the comparison with the previous measurements of the isomeric state using the ESR storage ring at GSI Darmstadt and the coupling of angular momenta of individual particle orbitals in odd-odd nuclei, a decay scheme of $^{186 \rm m}$Ta was proposed.
Highlights from PHENIX - II
Creators: name: Awes, Terry C.
name: collaboration, PHENIX
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: This contribution highlights recent results from the PHENIX Collaboration at RHIC with emphasis on those obtained through lepton and photon measurements in PHENIX.
description: 9 pages, 13 figures, presented at the 20th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions - "Quark Matter 2008", Jaipur, India, February 4-10, 2008
The building up of observed stellar scaling relations of massive galaxies and the connection to black hole growth in the TNG50 simulation
Creators: name: Varma, S.
name: Huertas-Company, M.
name: Pillepich, A.
name: Nelson, D.
name: Rodriguez-Gomez, V.
name: Dekel, A.
name: Faber, S. M.
name: Iglesias-Navarro, P.
name: Koo, D. C.
name: Primack, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: [abridged] We study how mock-observed stellar morphological and structural properties of massive galaxies are built up between $z=0.5$ and $z=3$ in the TNG50 cosmological simulation. We generate mock images with the properties of the CANDELS survey and derive Sersic parameters and optical rest-frame morphologies as usually done in the observations. Overall, the simulation reproduces the observed evolution of the abundances of different galaxy morphological types of star-forming and quiescent galaxies. The $\log{M_*}-\log R_e$ and $\log{M_*}-\logΣ_1$ relations of the simulated star-forming and quenched galaxies also match the observed slopes and zeropoints to within 1-$σ$. In the simulation, galaxies increase their observed central stellar mass density ($Σ_1$) and transform in morphology from irregular/clumpy systems to normal Hubble-type systems in the Star Formation Main Sequence at a characteristic stellar mass of $\sim 10^{10.5}~M_\odot$. This morphological transformation is connected to the activity of the central Super Massive Black Holes (SMBHs). At low stellar masses ($10^9$ < $M_*/M_\odot$ < $10^{10}$) SMBHs grow rapidly, while at higher mass SMBHs switch into the kinetic feedback mode and grow more slowly. During this low-accretion phase, SMBH feedback leads to the quenching of star-formation, along with a simultaneous growth in $Σ_1$. More compact massive galaxies grow their SMBHs faster than extended ones of the same mass and end up quenching earlier. In the TNG50 simulation, SMBHs predominantly grow via gas accretion before galaxies quench, and $Σ_1$ increases substantially after SMBH growth slows down. The simulation predicts therefore that quiescent galaxies have higher $Σ_1$ values than star-forming galaxies for the same SMBH mass, which disagrees with alternative models, and may potentially be in tension with some observations.
description: accepted for publication in MNRAS