cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The rise of chain pharmacies in India: implications for public health
Publisher: name: London School of Hygiene & Tropical Medicine
Year: 2018

description: Pharmacy retail markets in low and middle-income countries (LMIC) have traditionally been dominated by independently owned pharmacies, but economic growth has spurred the entry of pharmacy chains into these markets. Chains could be argued to have the potential to both improve quality and reduce price in comparison to independent pharmacies, however this has been little studied in LMICs. Using mixed methods, including a standardised patient survey, exit interviews with patients, and key informant interviews, research was undertaken to understand the effect of chain pharmacies, in India, on key public health concerns. The management of childhood diarrhoea and suspected tuberculosis was similarly substandard in chains and independents for most areas of assessment. However, chains sold significantly fewer harmful and prescription-only medicines for the diarrhoea patient. No significant price difference was found between chains and independents for the management of the TB case but the diarrhoea consultation was significantly cheaper at chains. Chains offered discounts on medicines, made possible by bulk purchasing and efficiencies in the supply chain. Customers patronising chain pharmacies were both more educated and relatively wealthier than those using independent pharmacies. In-depth interviews explored a set of hypotheses regarding how being organised in a chain may affect key behaviours relating to quality failures. In practice, few differences were identified: chains did not all have qualified pharmacists; the chain structure was not used to enforce regulation; and chain sales staff faced quite high-powered financial incentives. Chains did exert strong influence over customer service and sales, but the potential to exploit this control to improve quality was not realised. Given that the chains are not currently serving poorer groups, and the impact on quality of care was limited, any attempt to leverage this organisational model for public health improvement would require implementation of appropriate regulatory constraints and incentives.
Universal Duality in Luttinger Liquid Coupled to Generic Environment
Creators: name: Yurkevich, Igor V.
name: Yevtushenko, Oleg M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a Luttinger Liquid (LL) coupled to a generic environment consisting of bosonic modes with arbitrary density-density and current-current interactions. The LL can be either in the conducting phase and perturbed by a weak scatterer or in the insulating phase and perturbed by a weak link. The environment modes can also be scattered by the imperfection in the system with arbitrary transmission and reflection amplitudes. We present a general method of calculating correlation functions under the presence of the environment and prove the duality of exponents describing the scaling of the weak scatterer and of the weak link. This duality holds true for a broad class of models and is sensitive to neither interaction nor environmental modes details, thus it shows up as the universal property. It ensures that the environment cannot generate new stable fixed points of the RG flow. Thus, the LL always flows toward either conducting or insulating phase. Phases are separated by a sharp boundary which is shifted by the influence of the environment. Our results are relevant, for example, for low-energy transport in (i) an interacting quantum wire or a carbon nanotube where the electrons are coupled to the acoustic phonons scattered by the lattice defect; (ii) a mixture of interacting fermionic and bosonic cold atoms where the bosonic modes are scattered due to an abrupt local change of the interaction, (iii) mesoscopic electric circuits.
description: 5 pages, 1 figure, 6 pages of appendices with details of calculations
Remarks on the $\mathbf Q$-curvature flow
Creators: name: Chen, Xuezhang
name: Ma, Li
name: Xu, Xingwang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: The main purpose of this short note is to point out that the negative gradient flow for the prescribed $\mathbf Q$-curvature problem on $S^n$ can be extended to handle the case that the $\mathbf Q$-curvature candidate $f$ may change signs.
description: 12 pages
Weak Electron-Phonon Coupling and Unusual Electron Scattering of Topological Surface States in Sb(111) by Laser-Based Angle-Resolved Photoemission Spectroscopy
Creators: name: Xie, Zhuojin
name: He, Shaolong
name: Chen, Chaoyu
name: Feng, Ya
name: Yi, Hemian
name: Liang, Aiji
name: Zhao, Lin
name: Mou, Daixiang
name: He, Junfeng
name: Peng, Yingying
name: Liu, Xu
name: Liu, Yan
name: Liu, Guodong
name: Dong, Xiaoli
name: Yu, Li
name: Zhang, Jun
name: Zhang, Shenjin
name: Wang, Zhimin
name: Zhang, Fengfeng
name: Yang, Feng
name: Peng, Qinjun
name: Wang, Xiaoyang
name: Chen, Chuangtian
name: Xu, Zuyan
name: Zhou, X. J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: High resolution laser-based angle-resolved photoemission measurements have been carried out on Sb(111) single crystal. Two kinds of Fermi surface sheets are observed that are derived from the topological surface states: one small hexagonal electron-like Fermi pocket around $Γ$ point and the other six elongated lobes of hole-like Fermi pockets around the electron pocket. Clear Rashba-type band splitting due to the strong spin-orbit coupling is observed that is anisotropic in the momentum space. Our super-high-resolution ARPES measurements reveal no obvious kink in the surface band dispersions indicating a weak electron-phonon interaction in the surface states. In particular, the electron scattering rate for these topological surface states is nearly a constant over a large energy window near the Fermi level that is unusual in terms of the conventional picture.
description: 10 pages, 4 figures
Observation of Quantized Conductance in Neutral Matter
Creators: name: Krinner, Sebastian
name: Stadler, David
name: Husmann, Dominik
name: Brantut, Jean-Philippe
name: Esslinger, Tilman
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In transport experiments the quantum nature of matter becomes directly evident when changes in conductance occur only in discrete steps, with a size determined solely by Planck's constant h. The observations of quantized steps in the electric conductance have provided important insights into the physics of mesoscopic systems and allowed for the development of quantum electronic devices. Even though quantized conductance should not rely on the presence of electric charges, it has never been observed for neutral, massive particles. In its most fundamental form, the phenomenon requires a quantum degenerate Fermi gas, a ballistic and adiabatic transport channel, and a constriction with dimensions comparable to the Fermi wavelength. Here we report on the observation of quantized conductance in the transport of neutral atoms. We employ high resolution lithography to shape light potentials that realize either a quantum point contact or a quantum wire for atoms. These constrictions are imprinted on a quasi two-dimensional ballistic channel connecting two adjustable reservoirs of quantum degenerate fermionic lithium atoms. By tuning either a gate potential or the transverse confinement of the constrictions, we observe distinct plateaus in the conductance for atoms. The conductance in the first plateau is found to be equal to 1/h, the universal conductance quantum. For low gate potentials we find good agreement between the experimental data and the Landauer formula, with all parameters determined a priori. Our experiment constitutes the cold atom version of a mesoscopic device and can be readily extended to more complex geometries and interacting quantum gases.
description: 7 pages, 4 figures
Energy loss in unstable QGP - problem of the upper cut-off
Creators: name: Carrington, Margaret E.
name: Deja, Katarzyna
name: Mrowczynski, Stanislaw
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The energy loss of a highly energetic parton in a weakly coupled quark-gluon plasma is studied as an initial value problem. An extremely prolate plasma, where the momentum distribution is infinitely elongated along one direction, is considered. The energy loss is strongly time and direction dependent and its magnitude can much exceed the equilibrium value. It is logarithmically ultraviolet divergent. We argue that a good approximation to the energy loss can be obtained if this divergence is cut off with the parton energy.
description: 6 pages, presented by St. Mrowczynski at International Conference on New Frontiers in Physics, Kolymbari, Crete, Greece, August 28 - September 5, 2013
Examination of a simple example of gravitational wave memory
Creators: name: Tolish, Alexander
name: Bieri, Lydia
name: Garfinkle, David
name: Wald, Robert M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We examine a simple example of gravitational wave memory due to the decay of a point particle into two point particles. In the case where one of the decay products is null, there are two types of memory: a null memory due to the null particle and an ordinary memory due to the recoiling timelike particle. In the case where both decay products are timelike, there is only ordinary memory. However, this ordinary memory can mimic the null memory in the limit where one of the decay products has a large velocity.
Coexistence of fast photodarkening and slow photobleaching in Ge19As21Se60 thin films
Creators: name: Khan, Pritam
name: Barik, A. R.
name: Vinod, E. M.
name: Sangunni, K. S.
name: Jain, H.
name: Adarsh, K. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally demonstrate the coexistence of two opposite photo-effects, viz. fast photodarkening (PD) and slow photobleaching (PB) in Ge19As21Se60 thin films, when illuminated with a laser of wavelength 671nm, PD appears to begin instantaneously upon light illumination and saturates in tens of seconds. By comparison, PB is a slower process that starts only after PD has saturated. Although we could observe the coexistence of PD/PB even at moderate, one order of magnitude lower intensity of 0.2 W/cm2, the kinetics of transformation is significantly slowed down. However, both PD and PB follow stretched exponetial dependence on time. Modeling of overall change as a linear sum of two contributions suggests that the changes in As and Ge parts of glass network respond to light indepndent of each other.
description: 6pages, 3 figures and 1 table
Efficient Evaluation of the Probability Density Function of a Wrapped Normal Distribution
Creators: name: Kurz, Gerhard
name: Gilitschenski, Igor
name: Hanebeck, Uwe D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computation (stat.CO)
subject: Systems and Control (eess.SY)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: The wrapped normal distribution arises when a the density of a one-dimensional normal distribution is wrapped around the circle infinitely many times. At first look, evaluation of its probability density function appears tedious as an infinite series is involved. In this paper, we investigate the evaluation of two truncated series representations. As one representation performs well for small uncertainties whereas the other performs well for large uncertainties, we show that in all cases a small number of summands is sufficient to achieve high accuracy.
The open cluster NGC 3532: A new benchmark cluster to understand the transition from fast to slow rotation
Creators: name: Fritzewski, Dario J.
name: Barnes, Sydney A.
name: James, David J.
name: Järvinen, Silva
name: Strassmneier, Klaus G.
Publisher: name: Zenodo
Year: 2022
Subjects: stars: late-type
stars: chromospheres
stars: rotation
stars: activtiy
open clusters and associations: individual: NGC3532
techniques: spectroscopic
techniques: photometric

description: A very rich cluster intermediate in age between the Pleiades (150 Myr) and the Hyades (600 Myr) is needed to probe the rotational evolution, especially the transition between fast and slow rotation that occurs between the two ages. To fill this gap, we present unique rotation periods and stellar activity measurements for members of the 300 Myr-old open cluster NGC 3532. Our observations probe directly for the first time the evolution from fast to slow rotation at this key age. Both the colour-period and the colour-activity diagram show well populated and structured sequences, enabling a one-to-one match of the stars in each diagram. Beyond, we predict rotation periods from the activity measurement and recover them from noisy light curves, highlighting the synergies created by combining light curves, rotation periods, and activity measurements. Through activity measurement, we are able to identify the extended slow rotator sequence extending to P \approx 32d. Their spin-down is comparable to earlier-type slow rotators as a comparison to younger open clusters shows. Our activity measurements also confirms that all fast rotators of near-solar mass (F-G type) have evolved to become slow rotators, demonstrating that the absence of fast rotators in a colour-period diagram is not a detection issue but an astrophysical fact. We identify several short-comings in rotational evolution models. Amongst others, stars on the evolved fast rotator sequence are not spun down strong enough and our observations suggest a significant shorter crossing time for the rotational gap. The joint analysis of chromospheric activity and photometric time series thus enables comprehensive insights into the evolution of the rotation and activity of stars during the transitional phase between the Pleiades and Hyades ages. The rapid, yet well constrained evolution from fast to slow rotation allows for accurate age-ranking of open clusters in between these ages.
description: {"references": ["Barnes 2010, ApJ, 722, 222", "Fritzewski et al. 2019, A&A, 622, A110", "Fritzewski et al. 2020, A&A 641, A51", "Fritzewski et al. 2021a, A&A, 652, A60", "Fritzewski et al. 2021b, A&A, 656, A103", "Matt et al. 2015, ApJL, 799, L23"]}
Rotating Drops with Helicoidal Symmetry
Creators: name: Palmer, Bennett
name: Perdomo, Oscar
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C42, 53C10

description: See http://youtu.be/Mf4IE8gWcJs for a YouTube video showing part of the results in this paper. We consider helicoidal immersions in the Euclidean space whose axis of symmetry is the z-axis that are solutions of the equation 2 H=Λ_0-a 1/2 R^2 where H is the mean curvature of the surface, R is the distance form the point in the surface to the z-axis and a is a real number. We refer to these surfaces as helicoidal rotating drops. We prove the existence of properly immersed solutions that contain the z-axis. We also show the existence of several families of embedded examples. We describe the set of possible solutions and we show that most of these solutions are not properly immerse and are dense in the region bounded by two concentric cylinders. We show that all properly immersed solutions, besides being invariant under a one parameter helicoidal group, they are invariant under a cyclic group of rotations of the variables x and y. The second variation of energy for the volume constrained problem with Dirichlet boundary conditions is also studied.
description: 22 pages, 29 images
THE EFFECT OF CORPORATE SOCIAL RESPONSIBILITY ON MARKET SHARE: A CASE OF BREWERY INDUSTRY IN ADDIS ABABA
Creators: name: Lemma, Ephrem
Publisher: name: Zenodo
Year: 2018

description: In recent years, Corporate Social Responsibility has been attracting heightened attention throughout the world. Stakeholder expectations of the business have increasingly ranged from maximum profits to strong levels of Corporate Social Responsibility (CSR). Previous research into effects of CSR on Business Operations and Performance has yielded mixed results. Research on CSR in the Ethiopia context has however been minimal. Business managers in Ethiopia have actively embraced CSR in recent years, but there are still questions on how CSR affects the business operations and Market Share.

The study has been conducted on the basis of the quantitative and qualitative research techniques to assess the nature or practice of CSR and effect of CSR on Market share in the selected brewery industries located in Addis Ababa. Data were collected through questionnaire. elicit their perception about the nature of CSR in their respected companies
Correspondence related to publishing The Disease Concept of Alcoholism written by E. M. Jellinek
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1960

description: A letter dated November 4, 1960 that Jellinek sent to editor Mark Keller to express his satisfaction with the publication. A quote from United Printing Services, Inc. to Hillhouse Press, attn. Mark Keller, on The Disease Conception (sic!) of "Alcoholism" by Dr. E. L. Jellinek (sic!) re estimating the cost based on the revised specifications to follow the style of the Journal of Alcohol Studies (sic!).
Urban Policy Trends: Understanding the Olympic Bid Plebiscite
Creators: name: Lucas, Jack
Publisher: name: The School of Public Policy Publications
Year: 2019

description: On November 13, 2018, Calgarians voted 56-44 to terminate the city’s bid for the 2026 Winter Olympics. To understand who supported and opposed the bid, The School of Public Policy partnered with the Canadian Municipal Election Study to survey Calgarians in the weeks that followed the vote. Here’s our first look at the data.
description: The School of Public Policy Publications, Vol 12 (2019)
Generalized relativistic hydrodynamics with a convex extension
Creators: name: Beig, Robert
name: LeFloch, Philippe G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose a new model which describes relativistic hydrodynamics and generalizes the standard Euler system of isentropic perfect fluids. Remarkably, our system admits a convex extension which allows us to transform it to a symmetric hyperbolic form. This result sheds new light even on the relativistic Euler system.
description: 7 pages
Pion condensation phase at finite isospin chemical potential in a Holographic QCD model
Creators: name: Nishihara, Hiroki
name: Harada, Masayasu
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We summarize main points of our recent work where we studied the pion condensation for non-zero isospin chemical potential within a holographic QCD model. We confirmed that the second order phase transition with the mean field exponent occurs when the isospin chemical potential $μ_I$ exceed the pion mass, which is consistent with the result obtained by the chiral effective Lagrangian at $O(p^2)$. We find that a deviation for large $μ_I$ region can be understood as a higher order effects in the chiral effective Lagrangian. Our result shows that the chiral condensate defined by $\tildeσ \equiv \sqrt{ \langle σ\rangle^2 + \langle π^a \rangle^2 }$ is almost constant in the small $μ_I$ region, while it grows with $μ_I$ in the large $μ_I$ region showing an enhancement of the chiral symmetry breaking.
description: 5 pages, 3 Figures, to appear in the proccedings of the "Hadron2013" conference held in Nara, 4-8 November 2013
Enhancement of ultrafast electron photoemission from metallic nano antennas excited by a femtosecond laser pulse
Creators: name: Gubko, M. A.
name: Husinsky, W.
name: Ionin, A. A.
name: Kudryashov, S. I.
name: Makarov, S. V.
name: Nathala, C. S. R.
name: Rudenko, A. A.
name: Seleznev, L. V.
name: Sinitsyn, D. V.
name: Treshin, I. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We have demonstrated for the first time that an array of nanoantennas (central nanotips inside sub-micron pits) on an aluminum surface, fabricated using a specific double-pulse femtosecond laser irradiation scheme, results in a 28-fold enhancement of the non-linear (three-photon) electron photoemission yield, driven by a third intense IR femtosecond laser pulse. The supporting numerical electrodynamic modeling indicates that the electron emission is increased not owing to a larger effective aluminum surface, but due to instant local electromagnetic field enhancement near the nanoantenna, contributed by both the tip's lightning rod effect and the focusing effect of the pit as a microreflector and annular edge as a plasmonic lens.
description: 4 pages, 3 figures
The Clifford-Fourier transform $\mathcal{F}_O$ and monogenic extensions
Creators: name: Lopez, Arnoldo Bezanilla
name: Sanchez, Omar Leon
Publisher: name: arXiv
Year: 2014
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 11E88, 15A66, 30G30

description: Several versions of the Fourier transform have been formulated in the framework of Clifford algebra. We present a (Clifford-Fourier) transform, constructed using the geometric properties of Clifford algebra. We show the corresponding results of operational calculus. We obtain a technique to construct monogenic extensions of a certain type of continuous functions, and versions of the Paley-Wiener theorems are formulated.
Secret-Sharing Matroids need not be Algebraic
Creators: name: Ben-Efraim, Aner
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05B35

description: We combine some known results and techniques with new ones to show that there exists a non-algebraic, multi-linear matroid. This answers an open question by Matus (Discrete Mathematics 1999), and an open question by Pendavingh and van Zwam (Advances in Applied Mathematics 2013). The proof is constructive and the matroid is explicitly given.
Density of states in graphene with vacancies: midgap power law and frozen multifractality
Creators: name: Haefner, V.
name: Schindler, J.
name: Weik, N.
name: Mayer, T.
name: Balakrishnan, S.
name: Narayanan, R.
name: Bera, S.
name: Evers, F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The density of states (DoS), $\varrho(E)$, of graphene is investigated numerically and within the self-consistent T-matrix approximation (SCTMA) in the presence of vacancies within the tight binding model. The focus is on compensated disorder, where the concentration of vacancies, $n_\text{A}$ and $n_\text{B}$, in both sub-lattices is the same. Formally, this model belongs to the chiral symmetry class BDI. The prediction of the non-linear sigma-model for this class is a Gade-type singularity $\varrho(E) \sim |E|^{-1}\exp(-|\log(E)|^{-1/x})$. Our numerical data is compatible with this result in a preasymptotic regime that gives way, however, at even lower energies to $\varrho(E)\sim E^{-1}|\log(E)|^{-\mathfrak{x}}$, $1\leq \mathfrak{x} < 2$. We take this finding as an evidence that similar to the case of dirty d-wave superconductors, also generic bipartite random hopping models may exhibit unconventional (strong-coupling) fixed points for certain kinds of randomly placed scatterers if these are strong enough. Our research suggests that graphene with (effective) vacancy disorder is a physical representative of such systems.
description: References updated only
Intonational meaning in Spanish: Production Experiment (full data)
Creators: name: Fliessbach, Jan
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Spanish and Portuguese Language and Literature
subject: Arts and Humanities
subject: Spanish Linguistics

description: The audio-files presented here are all the stimuli and results of an audio-enhanced Discourse Completion Task designed to investigate the prosodic similarities and differences between mirative, obvious, and neutral statements in Castilian Spanish as discussed in --- Fliessbach, Jan (accepted): The intonation of expectations. On marked declaratives, exclamatives, and discourse particles in Castilian Spanish. Berlin: Language Science Press (Open Romance Linguistics). See license file (license_cc_by_nc_sa.txt) for details on use.
The 12CO/13CO ratio in AGB stars of different chemical type-Connection to the 12C/13C ratio and the evolution along the AGB
Creators: name: Ramstedt, S.
name: Olofsson, H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The aim of this paper is to investigate the evolution of the 12C/13C ratio along the AGB through the circumstellar 12CO/13CO ratio. This is the first time a sample including a significant number of M- and S-type stars is analysed together with a carbon-star sample of equal size, making it possible to investigate trends among the different types and establish evolutionary effects. The circumstellar 12CO/13CO abundance ratios are estimated through a detailed radiative transfer analysis of single-dish radio line emission observations. First, the 12CO radiative transfer is solved, assuming an abundance (dependent on the chemical type of the star), to give the physical parameters of the gas, i.e. mass-loss rate, gas expansion velocity, and gas temperature distribution. Then, the 13CO radiative transfer is solved using the results of the 12CO model giving the 13CO abundance. Finally, the 12CO/13CO abundance ratio is calculated. The circumstellar 12CO/13CO abundance ratio differs between the three spectral types. This is consistent with what is expected from stellar evolutionary models assuming that the spectral types constitute an evolutionary sequence; however, this is the first time this has been shown observationally for a relatively large sample covering all three spectral types. The median value of the 13CO abundance in the inner circumstellar envelope is 1.6x10^-5, 2.3x10^-5, and 3.0x10^-5 for the M-type, S-type, and carbon stars of the sample, respectively, corresponding to 12CO/13CO abundance ratios of 13, 26, and 34, respectively. Interestingly, the abundance ratio spread of the carbon stars is much larger than for the M- and S-type stars, even when excluding J-type carbon stars, in line with what could be expected from evolution on the AGB. We find no correlation between the isotopologue ratio and the mass-loss rate, as would be expected if both increase as the star evolves.
description: 11 pages, 5 figures, accepted for publication in A&A
INSTRUCTIONS FOR COLLECTING FIELD DATA
Creators: name: Ariza Lopez
name: Belart Pilar
Publisher: name: Zenodo
Year: 2023
Subjects: soil
erosion
olive grove

description: In order to ensure adequate homogeneity and consistency of the field data of the project and to be able to integrate them into other European projects (LUCAS-Land Use and Coverage Area frame Survey), as well as the incorporation of metadata, it is necessary to complete the forms for each plot and sampling point.
 The presented data corresponds to the result of the survey conducted on all researchers who will be collecting data in the field. These elements are common to all research areas.
Search for binary central stars of the SMC PNe
Creators: name: Hajduk, M.
name: Gladkowski, M.
name: Soszyński, I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Optical Gravitational Lensing Experiment (OGLE), originally designed to search for microlensing events, provides a rich and uniform data set suitable for studying the variability of certain types of objects. We used the OGLE data to study the photometry of central stars of planetary nebulae (PNe) in the Small Magellanic Cloud (SMC). In particular, we searched for close binary central stars with the aim to constrain the binary fraction and period distribution in the SMC. We also searched for PNe mimics and removed them from the PNe sample. We identified 52 counterparts of PNe in the SMC in the I-band images from the OGLE-II and OGLE-III surveys. We analysed the time-series photometry of the PNe. Spectra of the photometric variables were obtained to constrain the nature of the objects or search for additional evidence for binarity. Eight variables were found. Of these, seven objects are PNe mimics, including one symbiotic star candidate. One close binary central star of PN with a period of 1.15 or 2.31 day was discovered. The obtained binary fraction for the SMC PNe and the observational biases are discussed in terms of the OGLE observations.
description: Accepted for publication in A&A. 7 pages and 7 figures, table 4 is only available at the CDS
Lipkin method of particle-number restoration to higher orders
Creators: name: Wang, X. B.
name: Dobaczewski, J.
name: Kortelainen, M.
name: Yu, L. F.
name: Stoitsov, M. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Background: On the mean-field level, pairing correlations are incorporated through the Bogoliubov-Valatin transformation, whereupon the particle degrees of freedom are replaced by quasiparticles. This approach leads to a spontaneous breaking of the particle-number symmetry and mixing of states with different particle numbers. In order to restore the particle number, various methods have been employed, which are based on projection approaches before or after variation. Approximate variation-after-projection (VAP) schemes, utilizing the Lipkin method, have mostly been used within the Lipkin-Nogami prescription. Purpose: Without recurring to the Lipkin-Nogami prescription, and using instead states rotated in the gauge space, we derive the Lipkin method of particle-number restoration up to sixth order and we test the convergence and accuracy of the obtained expansion. Methods: We perform self-consistent calculations using the higher-order Lipkin method to restore the particle-number symmetry in the framework of superfluid nuclear energy-density functional theory. We also apply the Lipkin method to a schematic exactly solvable two-level pairing model. Results: Calculations performed in open-shell tin and lead isotopes show that the Lipkin method converges at fourth order and satisfactorily reproduces the VAP ground-state energies and energy kernels. Near closed shells, the higher-order Lipkin method cannot be applied because of a non-analytic kink in the ground-state energies in function of the particle number. Conclusions: In open-shell nuclei, the higher-order Lipkin method provides a good approximation to the exact VAP energies. The method is computationally inexpensive, making it particularly suitable, for example, for future optimizations of the nuclear energy-density functionals and simultaneous restoration of different symmetries.
description: 10 RevTeX pages, 11 figures
Segregation and phase inversion of strongly and weakly fluctuated Brownian particle mixtures in spherical containers
Creators: name: Awazu, Akinori
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We investigate the segregation pattern formations of strongly and weakly fluctuated Brownian particle mixtures, which are confined in spherical containers with finite volumes. We consider systems where the container restricts the motions of particles combining two familiar methods: spherically symmetric linear potential and the container edge wall. In such systems, the following two segregation patterns are observed. When the container radius is large enough, more weakly fluctuated particles accumulate around the center of the container than strongly fluctuated particles. On the other hand, inverted distributions of strongly and weakly fluctuated particles are observed when the container radius is small. We also found a similar segregation and phase inversion if such particle mixtures construct a chain (hetero-fluctuated polymer) and are confined in a container with no linear potential. We provide the qualitative mechanism and the relationships for the biopolymer behaviors of such phase inversions.
Bayesian Sample Size Determination of Vibration Signals in Machine Learning Approach to Fault Diagnosis of Roller Bearings
Creators: name: Sahu, Siddhant
name: Sugumaran, V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Sample size determination for a data set is an important statistical process for analyzing the data to an optimum level of accuracy and using minimum computational work. The applications of this process are credible in every domain which deals with large data sets and high computational work. This study uses Bayesian analysis for determination of minimum sample size of vibration signals to be considered for fault diagnosis of a bearing using pre-defined parameters such as the inverse standard probability and the acceptable margin of error. Thus an analytical formula for sample size determination is introduced. The fault diagnosis of the bearing is done using a machine learning approach using an entropy-based J48 algorithm. The following method will help researchers involved in fault diagnosis to determine minimum sample size of data for analysis for a good statistical stability and precision.
description: 14 pages, 1 table, 6 figures
Cosmic evolution of gas content and accretion
Creators: name: Combes, Francoise
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In the present universe, the gas is a minor component of giant galaxies, and its dominant phase is atomic (HI). During galaxy evolution in cosmic times, models predict that gas fractions were much higher in galaxies, and gas phases could be more balanced between molecular (H2) and atomic (HI). This gaseous evolution is certainly a key factor to explain the cosmic evolution of the star formation rate density. Star formation efficiency might also vary with redshift, and the relative importance of these factors is not yet well known. Our current knowledge of cosmic evolution of gas from molecular observations at high-z is reviewed and confronted to simulations.
description: 8 pages, 3 figures, to be published in Seychelles conference on galaxy evolution, "Lessons from the Local Group", ed. K. C. Freeman, B. G. Elmegreen, D. L. Block, and M. Woolway (Dordrecht: Springer), in press, 2014
Global Distribution of Water Vapor and Cloud Cover--Sites for High Performance THz Applications
Creators: name: Suen, Jonathan Y.
name: Fang, Michael T.
name: Lubin, Philip M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Absorption of terahertz radiation by atmospheric water vapor is a serious impediment for radio astronomy and for long-distance communications. Transmission in the THz regime is dependent almost exclusively on atmospheric precipitable water vapor (PWV). Though much of the Earth has PWV that is too high for good transmission above 200 GHz, there are a number of dry sites with very low attenuation. We performed a global analysis of PWV with high-resolution measurements from the Moderate Resolution Imaging Spectrometer (MODIS) on two NASA Earth Observing System (EOS) satellites over the year of 2011. We determined PWV and cloud cover distributions and then developed a model to find transmission and atmospheric radiance as well as necessary integration times in the various windows. We produced global maps over the common THz windows for astronomical and satellite communications scenarios. Notably, we show that up through 1 THz, systems could be built in excellent sites of Chile, Greenland and the Tibetan Plateau, while Antarctic performance is good to 1.6 THz. For a ground-to-space communication link up through 847 GHz, we found several sites in the Continental United States where mean atmospheric attenuation is less than 40 dB; not an insurmountable challenge for a link.
description: 15 pages, 23 figures
Characterization of Spatial Coherence of Synchrotron Radiation with Non-Redundant Arrays of Apertures
Creators: name: Skopintsev, P.
name: Singer, A.
name: Bach, J.
name: Muller, L.
name: Beyersdorf, B.
name: Schleitzer, S.
name: Gorobtsov, O.
name: Shabalin, A.
name: Kurta, R.
name: Dzhigaev, D.
name: Yefanov, O. M.
name: Glaser, L.
name: Sakdinawat, A.
name: Liu, Y.
name: Grubel, G.
name: Fromter, R.
name: Oepen, H. P.
name: Viefhaus, J.
name: Vartanyants, I. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a method to characterize the spatial coherence of soft X-ray radiation from a single diffraction pattern. The technique is based on scattering from non-redundant arrays (NRA) of slits and records the degree of spatial coherence at several relative separations from one to 15 microns, simultaneously. Using NRAs we measured the transverse coherence of the X-ray beam at the XUV X-ray beamline P04 of the PETRA III synchrotron storage ring as a function of different beam parameters. To verify the results obtained with the NRAs additional Young's double pinhole experiments were conducted and show good agreement.
description: 15 pages, 6 figures, 2 tables, 42 references
Active workstations do not impair executive function in young and middle-age adults
Creators: name: Ehmann, Peter Joseph
Publisher: name: No Publisher Supplied
Year: 2018

description: Purpose: To examine the effects of self-selected low-intensity walking on an active workstation on executive functions in young and middle-age adults. Methods: Using a within-subjects design, 32 young (20.6 ± 2.0 yr) and 26 middle-age (45.6 ± 11.8 yr) adults performed low-intensity treadmill walking and seated control conditions in randomized order on separate days, while completing an executive function test battery. Executive functions (EFs) were assessed using modified versions of the Stroop (inhibition), Sternberg (working memory), Wisconsin Card Sorting (cognitive flexibility), and Tower of London (global EF) cognitive tasks. Behavioral performance outcomes were assessed using composite task z-scores and traditional measures of reaction time and accuracy. Average heart rate (HR) and step count were also measured throughout. Results: The expected task difficulty effects were found for reaction time and accuracy. No significant main effects or interactions as a function of treadmill walking were found for tasks assessing global EF and the three individual executive function domains. Accuracy on the Tower of London task was slightly impaired during slow treadmill walking for both age groups. Middle-age adults displayed longer planning times for more difficult conditions of the Tower of London during walking compared to sitting. A 50 min session of low-intensity treadmill walking on an active workstation resulted in accruing approximately 4,500 steps. Conclusion: These findings suggest that executive function performance remains relatively unaffected while walking on an active workstation, further supporting the use of treadmill workstations as an effective approach to increase physical activity and reduce sedentary time in the workplace.
Viseletrekonstrukciós lehetőségek a kenézlői honfoglaló temető leletei alapján
Creators: name: Kenéz, Árpád
Publisher: name: Közösségi Régészeti Egyesület
Year: 2022

description: Lancea Regis. A Közösségi Régészeti Egyesület Közleményei. 3. évf. 1. szám (2022)
Assessment of Analytical Orientation Prediction Models for Suspensions Containing Fibers and Spheres
Creators: name: Dietemann, Bastien
name: Bosna, Fatih
name: Kruggel-Emden, Harald
name: Kraft, Torsten
name: Bierwisch, Claas
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: Folgar Tucker model
subject: multicomponent suspensions
subject: smoothed particle hydrodynamics

description: Analytical orientation models like the Folgar Tucker (FT) model are widely applied to predict the orientation of suspended non-spherical particles. The accuracy of these models depends on empirical model parameters. In this work, we assess how well analytical orientation models can predict the orientation of suspensions not only consisting of fibers but also of an additional second particle type in the shape of disks, which are varied in size and filling fraction. We mainly focus on the FT model, and we also compare its accuracy to more complex models like Reduced-Strain Closure model (RSC), Moldflow Rotational Diffusion model (MRD), and Anisotropic Rotary Diffusion model (ARD). In our work, we address the following questions. First, can the FT model predict the orientation of suspensions despite the additional particle phase affecting the rotation of the fibers? Second, is it possible to formulate an expression for the sole Folgar Tucker model parameter that is based on the suspension composition? Third, is there an advantage to choose more complex orientation prediction models that require the adjustment of additional model parameters?
Drivers and barriers in FAIR data sharing:The State of Open Science in Japan 2022
Creators: name: Ikeuchi, Ui
name: Kazuhiro, Hayashi
Publisher: name: Zenodo
Year: 2023

description: The National Institute of Science and Technology Policy (NISTEP) of the Ministry of Education, Culture, Sports, Science and Technology (MEXT) conducted an online questionnaire survey of 1,675 researchers belonging to the Science and Technology Experts Network from October to November 2022. The survey is part of "The State of Open Science in Japan", which has been conducted biennially since 2016. The analysis focused on responses from 1,159 researchers currently engaged in research activities out of 1,237 valid responses (response rate: 73.9%). The responses were analyzed by research field (including Humanities, based on the classification of Essential Science Indicators (ESI) by Clarivate Analytics), age group, and affiliated institution. The results were compared with the survey data from 2016, 2018, and 2020.
title: The Relationship Between Upper Body Strength and Standard Fitness Assessments in Elementary School Children
Creators: name: Carter, Nina G.
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1988

description: This study examined the correlation of four measures of upper body strength (traditional pull-up, modified pull-up, flexed-arm hang, and push-ups), currently being used in physical fitness test batteries, as well as a grip strength test. Seventy-one male (mean ± SD: age 10.6 years ± 6.9 months) and 68 female (age 10.6 years ± 7.6 months) subjects enrolled in the fourth or fifth grade participated in the study. The testing took place during the subjects normal physical education class with two tests being given each class period. All testing as well as height and weight measures were completed in a three week period.

Results indicate that the four fitness test items are moderately correlated (r=0.33 to 0.65; p<0.05) with each other. The grip strength test was not significantly correlated with the upper body strength tests except for the pull-up test for females. Weight and BMI (calculated by using height and weight measures) have a negative correlation (r=-0.28 to -.048; p<0.05) with the modified pull-up, flexed-arm hang, and push-up test. The traditional pull-up test, despite having no correlation with weight, produced the highest percentage of zero scores (56% males; 69% females) and the lowest percentage of passing scores (38.9%/43.1 % males; 30.4% females) using norm/criterion-referenced standards. The modified pull-up test produced the lowest percentage of zero scores (7% males; 4% females) and the highest percentage of passing scores (73.6% males; 69.6% females). Only criterion referenced standards are used with this test. The findings of this study suggest that elementary students are more successful at performing the modified pull-up test than the other measures of upper body strength. Factor analysis indicates that this is also the most reliable test.
SafePASS: A new chapter for Passenger Ship Evacuation and Marine Emergency Response
Creators: name: Stefanidis Fotios
name: Stefanou Evangelos
name: Boulougouris Evangelos
name: Karagiannidis Lazaros
name: Sotiralis Panagiotis
name: Annetis Emmanouil
name: Balet Olivier
name: Veltsistas Panagiotis
Publisher: name: Zenodo
Year: 2022
Subjects: marine
AR
safety
evacuation
risk
passenger

description: Despite the current high level of safety and the efforts to make passenger ships resilient to most fire and flooding scenarios, there are still gaps and challenges in the marine emergency response and ship evacuation processes. Those challenges arise from the fact that both processes are complex, multi-variable problems that rely on parameters involving not only people and technology but also procedural and managerial issues. SafePASS Project, funded under EU’s Horizon 2020 Research and Innovation Programme, is set to radically redefine the evacuation processes by introducing new equipment, expanding the capabilities of legacy systems on-board, proposing new Life-Saving Appliances and ship layouts, and challenging the current international regulations, hence reducing the uncertainty, and increasing the efficiency in all the stages of ship evacuation and abandonment process.
Model of lateral diffusion in ultrathin layered films
Creators: name: Postnikov, Eugene B.
name: Sokolov, Igor M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the diffusion of markers in a layered medium, with the lateral diffusion coefficient being the function of hight. We show that the probability density of the lateral displacements follows one-dimensional Batchelor's equation with time-dependent diffusion coefficient governed by the particles' redistribution in height. For the film of a finite thickness the resulting mean squared displacement exhibits superdiffusion at short times and crosses over to normal diffusion at long times. The approach is used for description of experimental results on inhomogeneous molecular diffusion in thin liquid films deposited on solid surfaces.
description: 15 pages, 4 figures