cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Searching for faint companions with VLTI/PIONIER. I. Method and first results
Creators: name: Absil, Olivier
name: Bouquin, Jean-Baptiste Le
name: Berger, Jean-Philippe
name: Lagrange, Anne-Marie
name: Chauvin, Gaël
name: Lazareff, Bernard
name: Zins, Gérard
name: Haguenauer, Pierre
name: Jocou, Laurent
name: Kern, Pierre
name: Millan-Gabet, Rafael
name: Rochat, Sylvain
name: Traub, Wes
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. A new four-telescope interferometric instrument called PIONIER has recently been installed at VLTI. It provides improved imaging capabilities together with high precision. Aims. We search for low-mass companions around a few bright stars using different strategies, and determine the dynamic range currently reachable with PIONIER. Methods. Our method is based on the closure phase, which is the most robust interferometric quantity when searching for faint companions. We computed the chi^2 goodness of fit for a series of binary star models at different positions and with various flux ratios. The resulting chi^2 cube was used to identify the best-fit binary model and evaluate its significance, or to determine upper limits on the companion flux in case of non detections. Results. No companion is found around Fomalhaut, tau Cet and Regulus. The median upper limits at 3 sigma on the companion flux ratio are respectively of 2.3e-3 (in 4 h), 3.5e-3 (in 3 h) and 5.4e-3 (in 1.5 h) on the search region extending from 5 to 100 mas. Our observations confirm that the previously detected near-infrared excess emissions around Fomalhaut and tau Cet are not related to a low-mass companion, and instead come from an extended source such as an exozodiacal disk. In the case of del Aqr, in 30 min of observation, we obtain the first direct detection of a previously known companion, at an angular distance of about 40 mas and with a flux ratio of 2.05e-2 \pm 0.16e-2. Due to the limited u,v plane coverage, its position can, however, not be unambiguously determined. Conclusions. After only a few months of operation, PIONIER has already achieved one of the best dynamic ranges world-wide for multi-aperture interferometers. A dynamic range up to about 1:500 is demonstrated, but significant improvements are still required to reach the ultimate goal of directly detecting hot giant extrasolar planets.
description: 11 pages, 6 figures, accepted for publication in A&A
title: Sztuczne światło nocą między zagrożeniem a rozwojem.
Creators: name: Tabaka, Przemysław
Publisher: name: Wydawnictwo Politechniki Łódzkiej
Year: 2022

description: Intensywne użytkowanie oświetlenia w porze nocnej doprowadziło do pojawienia się zjawiska nazywanego zanieczyszczeniem światłem. Skala tego zjawiska wciąż rośnie. Pomimo rozmiarów problemu, ta forma zanieczyszczenia środowiska jest najmniej znana. Niewiele osób zamieszkujących obszary mocno zurbanizowane zdaje sobie sprawę z istnienia tego problemu.
Physician patient-sharing relationships and healthcare costs and utilization in China: social network analysis based on health insurance data
Creators: name: Hu, Huajie
name: Zhang, Yichen
name: Zhu, Dawei
name: Guan, Xiaodong
name: Shi, Luwen
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Evidence on physician patient-sharing relationships from developing countries is limited. This study aimed to identify patient-sharing networks among physicians in China and explore the effect of attributes of physician networks on healthcare utilization and costs. Retrospective analysis was undertaken based on healthcare claims from Urban Employee Basic Medical Insurance Data spanning the years 2015 to 2018. We identified patients with hypertension and modeled physician patient-sharing networks using social network analysis. Relationships among physicians were further quantified using network measures. We fitted a log-linear model to examine the association between networks and healthcare at the physician level. 29,321 patients, seen by 3,429 physicians from 57 hospitals in one eastern city of China were included. Physicians were connected to 21 other physicians (threshold = 1 shared patients) or 7 other physicians (threshold = 4, 6, or 8 shared patients). Degree and centrality measures of physicians at primary care facilities were significantly lower than those at secondary or tertiary hospitals (p Primary care physicians were located in peripheral positions in China, and the links between primary care facilities and higher-grade hospitals were still weak. Characteristics of physicians’ networks and the position of physicians in the network were associated with spending and utilization of services, but not all associations were in the same direction.
Periodic Radio Emission from the M7 Dwarf 2MASS J13142039+1320011: Implications for the Magnetic Field Topology
Creators: name: McLean, M.
name: Berger, E.
name: Irwin, J.
name: Forbrich, J.
name: Reiners, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present multi-epoch radio and optical observations of the M7 dwarf 2MASS J13142039+1320011. We detect a ~1 mJy source at 1.43, 4.86, 8.46 and 22.5 GHz, making it the most luminous radio emission over the widest frequency range detected from an ultracool dwarf to date. A 10 hr VLA observation reveals that the radio emission varies sinusoidally with a period of 3.89+/-0.05 hr, and an amplitude of ~30% at 4.86 GHz and ~20% at 8.46 GHz. The periodicity is also seen in circular polarization, where at 4.86 GHz the polarization reverses helicity from left- to right-handed in phase with the total intensity. An archival detection in the FIRST survey indicates that the radio emission has been stable for at least a decade. We also detect periodic photometric variability in several optical filters with a period of 3.79 hr, and measure a rotation velocity of vsini=45+/-5 km/s, in good agreement with the radio and optical periods. The period and rotation velocity allow us to place a lower limit on the radius of the source of >0.12 R_sun, about 30% larger than theoretical expectations. The properties of the radio emission can be explained with a simple model of a magnetic dipole mis-aligned relative to the stellar rotation axis, with the sinusoidal variations and helicity reversal due to the rotation of the magnetic poles relative to our line of sight. The long-term stability of the radio emission indicates that the magnetic field (and hence the dynamo) is stable on a much longer timescale than the convective turn-over time of ~0.2 yr. If the radio emission is due to the electron cyclotron maser process, the inferred magnetic field strength reaches at least 8 kG.
description: Submitted to ApJ; 19 pages; 12 figures; 1 tables; emulateapj style
The evolvability of business and the role of antitrust
Creators: name: Wilkinson, Ian
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Finance (q-fin.GN)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: In this paper, based on theories of complex adaptive systems, I argue that the main case for antitrust policy should be extended to include the criteria of "evolvability." To date, the main case focuses on economizing, including market power as a key filter for identifying suspect cases. Both production and transaction costs are considered as part of economizing and other factors are use to consider the benefits of different industry structures. CAS analysis focuses attention on dynamics, evolution and networks. As I will show, the criteria of evolvability requires us to consider various types of direct and indirect network impacts in business that go beyond the traditional focus on production and transaction costs. These network impacts stem from the connections between transactions and relations over time and place, including how business arrangements at one time, limit or enable arrangements in the future. An assessment of the impacts, I argue, can and should be included in the rules of antitrust and in the processes of antitrust case analysis and decision making.
description: 37 pages, 1 table, 1 Figure
Embedding method for the scattering phase in strongly correlated quantum dots
Creators: name: Molina, Rafael A.
name: Schmitteckert, Peter
name: Weinmann, Dietmar
name: Jalabert, Rodolfo A.
name: Jacquod, Philippe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The embedding method for the calculation of the conductance through interacting systems connected to single channel leads is generalized to obtain the full complex transmission amplitude that completely characterizes the effective scattering matrix of the system at the Fermi energy. We calculate the transmission amplitude as a function of the gate potential for simple diamond-shaped lattice models of quantum dots with nearest neighbor interactions. In our simple models we do not generally observe an interaction dependent change in the number of zeroes or phase lapses that depend only on the symmetry properties of the underlying lattice. Strong correlations separate and reduce the widths of the resonant peaks while preserving the qualitative properites of the scattering phase.
description: 11 pages, 3 figures. Proceedings of the Workshop on Advanced Many-Body and Statistical Methods in Mesoscopic Systems, Constanta, Romania, June 27th - July 2nd 2011. To appear in Journal of Physics: Conference Series
Set of Service Design and Art-Based Methods for Co-Design and Stakeholder Work in Cultural Tourism
Creators: name: Li, Hong
name: Smit, Bert
Publisher: name: Zenodo
Year: 2021
Subjects: Cultural tourism
Service design methods
Art-based methods
Community-led development

description: The document shows the results of D7.1, namely, a Manual – also known as a Menu – that consists of a set of service design and art-based tools/methods for cultural tourism stakeholder consultation and engagement. The Manual serves as one building block of a system of instruments within WP7, along with the SmartCulTour Game, the SmartCulTour Toolkit, and the Strategic Roadmap, which will be developed in the next stages under WP7, constantly evolving to keep pace with the needs of the Living Labs (hereafter referred to as ‘the Labs’ or ‘LLs’) throughout the lifecycle of the SmartCulTour project. The methods included in this Manual will be adopted and further developed in collaboration with the Labs, while the Manual itself can also serve as a valuable tool for the organisation and facilitation of community workshops in general. The double-diamond design process model serves as a service design framework to help narrow down the set of tools/methods to be developed, tested, and implemented in the Labs. Specifically, Task 7.1 lies in the first part of the double diamond, that is, identifying and clarifying the needs of each Lab. Therefore, the majority of tools/methods that have been developed so far contribute to the first diamond, and the focus has been placed on empathy building and empathic engagement. There are 12 service design and art-based tools/methods included in the Manual. Taking into consideration the impact of the COVID-19 pandemic, the Manual is designed to support the use of the tools/methods in both physical and virtual environments. Each method is described according to 12 topics: (1) Underlying idea of the techniques; (2) Situations in which the tool can best be used; (3) Expected output; (4) Guidelines for using the method; (5) Recommended settings in terms of facilitators, participants, and duration; (6) A link to a virtual template (where possible); (7) Materials needed for in-person use of the method; (8) Links with other tools/methods, either as input or as output; (9) Lessons learned from earlier applications of the method; (10) Suggested next steps to complete; (11) Inclusion guide for use of the tool with participants with disabilities; and (12) Reading references. The Manual is intended to provide relevant stakeholders with a useful set of tools/methods to choose from when developing sustainable cultural tourism in diverse contexts. However, it is worth noting that the Manual is not a one-size-fits-all solution. Audiences are encouraged to adopt it proactively, adapt it creatively, and eventually make it fit to local specificities. Design Council. (2005). "Eleven lessons. A study of the design process". Design Council. Retrieved 29 June, 2021.
$D \rightarrow π, l ν$ Semileptonic Decays, $|V_{cd}|$ and 2$^{nd}$ Row Unitarity from Lattice QCD
Creators: name: Na, Heechang
name: Davies, Christine T. H.
name: Follana, Eduardo
name: Koponen, Jonna
name: Lepage, G. Peter
name: Shigemitsu, Junko
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a new calculation of the $D \rightarrow π, l ν$ semileptonic form factor $f^{D \rightarrow π}_+(q^2)$ at $q^2 = 0$ based on HISQ charm and light valence quarks on MILC $N_f = 2 +1$ lattices. Using methods developed recently for HPQCD's study of $D \rightarrow K, l ν$ decays, we find $f^{D \rightarrow π}_+(0) = 0.666(29)$. This signifies a better than factor of two improvement in errors for this quantity compared to previous calculations. Combining the new result with CLEO-c branching fraction data, we extract the CKM matrix element $|V_{cd}| = 0.225(6)_{exp.}(10)_{lat.}$, where the first error comes from experiment and the second from theory. With a total error of $\sim5.3$\% the accuracy of direct determination of $|V_{cd}|$ from $D$ semileptonic decays has become comparable to (and in good agreement with) that from neutrino scattering. We also check for second row unitarity using this new $|V_{cd}|$, HPQCD's earlier $|V_{cs}|$ and $|V_{cb}|$ from the Fermilab Lattice \& MILC collaborations. We find $|V_{cd}|^2 + |V_{cs}|^2 + |V_{cb}|^2 = 0.976(50)$, improving on the current PDG2010 value.
description: 7 pages, 7 figures, and 4 tables
Orbits of LMC/SMC with recent ground-based proper motions
Creators: name: Bartoskova, Katerina
name: Jungwiert, Bruno
name: Ruzicka, Adam
name: Costa, Edgardo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In recent years, with new ground-based and HST measurements of proper motions of the Magellanic Clouds being published, a need of a reanalysis of possible orbital history has arisen. As complementary to other studies, we present a partial examination of the parameter space -- aimed at exploring the uncertainties in the proper motions of both Clouds, taking into account the updated values of Galactic constants and Solar motion, which kinematically and dynamically influence the orbits of the satellites. In the chosen setup of the study, none of the binding scenarios of this pair could be neglected.
description: 2 pages, 2 figures, to appear in the proceedings of "Assembling the Puzzle of the Milky Way", Le Grand Bornand, April 2011
The Allen Telescope Array Pi GHz Sky Survey II. Daily and Monthly Monitoring for Transients and Variability in the Bootes Field
Creators: name: Bower, Geoffrey C.
name: Whysong, David
name: Blair, Samantha
name: Croft, Steve
name: Keating, Garrett
name: Law, Casey
name: Williams, Peter K. G.
name: Wright, Melvyn C. H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present results from daily radio continuum observations of the Bootes field as part of the Pi GHz Sky Survey (PiGSS). These results are part of a systematic and unbiased campaign to characterize variable and transient sources in the radio sky. The observations include 78 individual epochs distributed over 5 months at a radio frequency of 3.1 GHz with a median RMS image noise in each epoch of 2.8 mJy. We produce 5 monthly images with a median RMS of 0.6 mJy. No transient radio sources are detected in the daily or monthly images. At 15 mJy, we set an upper limit (2 sigma) to the surface density of 1-day radio transients at 0.025 deg^-2. At 5 mJy, we set an upper limit (2σ) to the surface density of 1-month radio transients at 0.18 deg^-2. We also produce light curves for 425 sources and explore the variability properties of these sources. Approximately 20% of the sources exhibit some variability on daily and monthly time scales. The maximum RMS fractional modulations on the 1 day and 1 month time scales for sources brighter than 10 mJy are 2 and 0.5, respectively. The probability of a daily fluctuation for all sources and all epochs by a factor of 10 is less than 10^-4. We compare the radio to mid-infrared variability for sources in the field and find no correlation. Finally, we apply the statistics of transient and variable populations to constrain models for a variety of source classes.
description: Accepted for publication in ApJ
Signatures of three-nucleon interactions in few-nucleon systems
Creators: name: Kalantar-Nayestanaki, N.
name: Epelbaum, E.
name: Messchendorp, J. G.
name: Nogga, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Recent experimental results in three-body systems have unambiguously shown that calculations based only on nucleon-nucleon forces fail to accurately describe many experimental observables and one needs to include effects which are beyond the realm of the two-body potentials. This conclusion owes its significance to the fact that experiments and calculations can both be performed with a high accuracy. In this review, both theoretical and experimental achievements of the past decade will be underlined. Selected results will be presented. The discussion on the effects of the three-nucleon forces is, however, limited to the hadronic sector. It will be shown that despite the major successes in describing these seemingly simple systems, there are still clear discrepancies between data and the state-of-the-art calculations.
description: accepted for publication in Rep. Prog. Phys
Energy and Xmax reconstruction of hadron-initiated showers in surface arrays
Creators: name: Ros, G.
name: Medina-Tanco, G. A.
name: Supanitsky, A. D.
name: Del Peral, L.
name: Rodriguez-Frias, M. D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The current methods to determine the primary energy in surface arrays are different when dealing with hadron or photon initiated showers. In this work, we adapt a method previously developed for photon-initiated showers to hadron primaries. We determine the Monte Carlo parametrizations that relate the surface energy estimator and the maximum of shower development for both, proton and Iron primaries. Using for each primary their own set of calibration curves, which is of course impossible in practice, we show that the energy could be inferred with a negligible bias and 12% resolution. However, we show that a mixed calibration could also be performed, including both type of primaries, such that the bias still remains low and the achieved resolution is around 15%. In addition, the method allows the simultaneous determination of Xmax in pure surface arrays with resolution better than 7%.
description: 4 pages, 7 figures. Presented in the 32nd International Cosmic Ray Conference, Beijing 2011
Principal Evaluation
Creators: name: Donley, Jan
name: Detrich, Ronnie
name: States, Jack
name: Keyworth, Randy
Publisher: name: figshare
Year: 2021
Subjects: subject: 130304 Educational Administration, Management and Leadership
subject: FOS: Educational sciences
subject: Education
subject: 160506 Education Policy
subject: FOS: Political science
subject: 130199 Education systems not elsewhere classified

description: The field of principal evaluation, while gaining increased research interest in recent years, lags behind teacher evaluation in terms of conclusions that can be made regarding effective practice. Prior to Race to the Top and ESEA waivers, principal evaluation was implemented inconsistently and evaluation systems lacked instruments with validity and/or reliability, had a tenuous relationship with leadership standards, failed to include measures of student/school outcomes, and had mixed purposes as to their intended use (e.g., sometimes as formative information to help principals improve, while other times as summative information to make personnel decisions). However, today’s evaluation systems have evolved to incorporate multiple measures of principal performance that evaluate principals on research-based principles of effective leadership, often include student outcomes (which is often controversial, however), and are used both to help principals improve and to hold them accountable for their performance. Ongoing and more frequent observations, often conducted by the principal supervisor, who often also serves as a coach/mentor and directs the principal towards needed professional learning, show promise as an effective practice. Using the results from principal evaluations for personnel decisions, such as offering incentives through pay-for-performance programs, yields mixed results and warrants further research attention.
Model based Software Develeopment: Issues & Challenges
Creators: name: basha, N Md Jubair
name: Moiz, Salman Abdul
name: Rizwanullah, Mohammed
Publisher: name: arXiv
Year: 2012
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: One of the goals of software design is to model a system in such a way that it is easily understandable. Nowadays the tendency for software development is changing from manual coding to automatic code generation; it is becoming model-based. This is a response to the software crisis, in which the cost of hardware has decreased and conversely the cost of software development has increased sharply. The methodologies that allowed this change are model-based, thus relieving the human from detailed coding. Still there is a long way to achieve this goal, but work is being done worldwide to achieve this objective. This paper presents the drastic changes related to modeling and important challenging issues and techniques that recur in MBSD.
description: 6 pages, 1 figure, NCRTCST-12
Black string corrections in variable tension braneworld scenarios
Creators: name: da Rocha, Roldao
name: da SIlva, J. M. Hoff
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Braneworld models with variable tension are investigated, and the corrections on the black string horizon along the extra dimension are provided. Such corrections are encrypted in additional terms involving the covariant derivatives of the variable tension on the brane, providing profound consequences concerning the black string horizon variation along the extra dimension, near the brane. The black string horizon behavior is shown to be drastically modified by the terms corrected by the brane variable tension. In particular, a model motivated by the phenomenological interesting case regarding Eotvos branes is investigated. It forthwith provides further physical features regarding variable tension braneworld scenarios, heretofore concealed in all previous analysis in the literature. All precedent analysis considered uniquely the expansion of the metric up to the second order along the extra dimension, what is able to evince solely the brane variable tension absolute value. Notwithstanding, the expansion terms aftermath, further accomplished in this paper from the third order on, elicits the successive covariant derivatives of the brane variable tension, and their respective coupling with the extrinsic curvature, the Weyl tensor, and the Riemann and Ricci tensors, as well as the scalar curvature. Such additional terms are shown to provide sudden modifications in the black string horizon in a variable tension braneworld scenario
description: 12 pages, 5 figures, accepted in PRD
A Cosmological Model of Thermodynamic Open Universe
Creators: name: Goswami, G. K.
name: Trivedi, Mandwi
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we have given a generalisation of the earlier work by Prigogine et al. who have constructed a phenomenological model of entropy production via particle creation in the very early universe generated out of the vacuum rather than from a singularity, by including radiation also as the energy source and tried to develop an alternative cosmological model in which particle creation prevents the big bang. We developed Radiation dominated model of the universe which shows a general tendency that (i) it originates from instability of vacuum rather than from a singularity. (ii) Up to a characteristic time cosmological quantities like density, pressure, Hubble constant and expansion parameter vary rapidly with time. (iii) After the characteristic time these quantities settles down and the models are turned into de-sitter type model with uniform matter, radiation, creation densities and Hubble's constant H. The de-sitter regime survives during a decay time then connects continuously to a usual adiabatic matter radiation RW universe.The interesting thing in the paper is that we have related the phenomenological radiation dominated model to macroscopic model of quantum particle creation in the early universe giving rise to the present observed value of cosmic background radiation . It is also found that the dust filled model tallies exactly with that of the Prigogine's one, which justifies that our model is generalized Prigogine's model. Although the model originates from instability of vacuum rather than from a singularity, still there is a couple of unavoidable singularities in the model.
description: 10,Accepted for publication in International journal of theoretical physics,doi:10.1007/s10773-012-1142-6
A Catalog of Bulge+Disk Decompositions and Updated Photometry for 1.12 Million Galaxies in the Sloan Digital Sky Survey
Creators: name: Simard, Luc
name: Mendel, J. Trevor
name: Patton, David R.
name: Ellison, Sara L.
name: McConnachie, Alan W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We perform two-dimensional, Point-Spread-Function-convolved, bulge+disk decompositions in the $g$ and $r$ bandpasses on a sample of 1,123,718 galaxies from the Legacy area of the Sloan Digital Sky Survey Data Release Seven. Four different decomposition procedures are investigated which make improvements to sky background determinations and object deblending over the standard SDSS procedures that lead to more robust structural parameters and integrated galaxy magnitudes and colors, especially in crowded environments. We use a set of science-based quality assurance metrics namely the disk luminosity-size relation, the galaxy color-magnitude diagram and the galaxy central (fiber) colors to show the robustness of our structural parameters. The best procedure utilizes simultaneous, two-bandpass decompositions. Bulge and disk photometric errors remain below 0.1 mag down to bulge and disk magnitudes of $g \simeq 19$ and $r \simeq 18.5$. We also use and compare three different galaxy fitting models: a pure Sersic model, a $n_b=4$ bulge + disk model and a Sersic (free $n_b$) bulge + disk model. The most appropriate model for a given galaxy is determined by the $F$-test probability. All three catalogs of measured structural parameters, rest-frame magnitudes and colors are publicly released here. These catalogs should provide an extensive comparison set for a wide range of observational and theoretical studies of galaxies.
description: 25 pages, 19 figures, 3 tables in emulateapj style. Accepted for publication in ApJS. Full catalogs to appear in ApJS and also available at ftp://ftp.hia.nrc.gc.ca/pub/users/lsd/astroph/ApJS_SDSS_2011/
Simulación de Controlador de dispositivos con Arduino y Blynk
Creators: name: Cotrado, Juan
name: Sosa, Estefani
Publisher: name: Zenodo
Year: 2021
Subjects: IOT
Blynk
Arduino

description: Este proyecto de investigación consiste en implementar un controlador automático de dispositivos electrónicos el cual controlará los dispositivos que tengan un sistema integrado incluido. Estos se activan y desactivan mediante un dispositivo móvil. En este trabajo, se utiliza proteus para hacer la simulación y junto arduino uno el cual haciendo uso de Blynk el cual es un servicio en la nube, que sirve para el control de Arduino, Raspberry Pi, ESP8266 y las apps a través de Internet, donde se crean proyectos de internet de las cosas en su celular, con una conexión de red y un celular. Realizan una comunicación con Virtual Serial Port Emulator la cual es una aplicación de software que replica los puertos COM físicos. De los cuales crea puertos virtuales, los puertos serie virtuales que se crean son totalmente compatibles con los sistemas operativos y las aplicaciones y se tratan de la misma manera que un puerto real. Este está interconectado con arduino para hacer la conexión desde un dispositivo móvil con el dispositivo electrónico cada información que es mandada desde el dispositivo móvil es registrada y mandada a la nube el cual lleva por nombre Thingspeak el cual permite recoger y almacenar datos de sensores en la nube y desarrollar aplicaciones IoT. Thinkspeak también ofrece aplicaciones que permiten analizar y visualizar tus datos en MATLAB y actuar sobre los datos. Los datos de los sensores pueden ser enviados desde Arduino, Raspberry Pi, BeagleBone Black y otro HW.
Suppression of Superfluidity upon Overflow of Trapped Fermions. Quantal and Thomas-Fermi Studies
Creators: name: Schuck, P.
name: Viñas, X.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Two issues are treated in this work: (i) the generic fact that if a fermionic superfluid in the BCS regime overflows from a narrow container into a much wider one, pairing is much suppressed at the overflow point. Physical examples where this feature may play an important role are discussed (ii) A Thomas-Fermi (TF) approach to inhomogeneous superfluid Fermi-systems is presented and shown that it works well in cases where the Local Density Approximation (LDA) breaks down.
description: 4 pages, 5 figures
H_2-Optimal Decentralized Control over Posets: A State-Space Solution for State-Feedback
Creators: name: Shah, Parikshit
name: Parrilo, Pablo A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We develop a complete state-space solution to H_2-optimal decentralized control of poset-causal systems with state-feedback. Our solution is based on the exploitation of a key separability property of the problem, that enables an efficient computation of the optimal controller by solving a small number of uncoupled standard Riccati equations. Our approach gives important insight into the structure of optimal controllers, such as controller degree bounds that depend on the structure of the poset. A novel element in our state-space characterization of the controller is a remarkable pair of transfer functions, that belong to the incidence algebra of the poset, are inverses of each other, and are intimately related to prediction of the state along the different paths on the poset. The results are illustrated by a numerical example.
description: 39 pages, 2 figures, submitted to IEEE Transactions on Automatic Control
The Solar Wind Energy Flux
Creators: name: Chat, G. Le
name: Issautier, K.
name: Meyer-Vernet, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The solar-wind energy flux measured near the ecliptic is known to be independent of the solar-wind speed. Using plasma data from Helios, Ulysses, and Wind covering a large range of latitudes and time, we show that the solar-wind energy flux is independent of the solar-wind speed and latitude within 10%, and that this quantity varies weakly over the solar cycle. In other words the energy flux appears as a global solar constant. We also show that the very high speed solar-wind (VSW > 700 km/s) has the same mean energy flux as the slower wind (VSW < 700 km/s), but with a different histogram. We use this result to deduce a relation between the solar-wind speed and density, which formalizes the anti-correlation between these quantities.
description: 12 pages, 5 figures
title: Eine Methode zur Entwicklung modularer Produktfamilien
title: A method for the development of modular product families
titleType: AlternativeTitle
Creators: name: Blees, Christoph
Publisher: name: TUHH Universitätsbibliothek
Year: 2011
Subjects: subject: Modulare Produktfamilie
subject: Produktstrukturen
subject: Modular product familie
subject: product structure
classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines
subject: Produktfamilie

description: Im Rahmen der Arbeit wird eine Methode vorgestellt, die eine durchgehende Unterstützung bei der Entwicklung modularer Produktfamilien bietet. Unter Anwendung der Methode entwickelte Produktfamilien sollen nicht nur eine einfache Konfiguration von Produktvarianten erlauben, sondern auch den vielfältigen Anforderungen aus allen Produktlebensphasen gerecht werden. Dazu werden zuerst unabhängig Produktstrukturen aus Sicht der unterschiedlichen Produktlebensphasen entwickelt. Im Anschluss werden die Produktstrukturen in einem Prozess über das Produktleben zusammengefasst.
description: The dissertation presents a method for developing modular product families which differentiates between individual stages in the product lifecycle. Modularisation is first carried out for each stage, and the individual modularisations are then brought together to cover the full product lifecycle. This method allows for the development of modular product structures which not only simplify the configuration of product variants, but also fulfil the requirements of each stage in the product lifecycle.
Employer sanctions: A policy with a pitfall?
Creators: name: Stark, Oded
name: Jakubek, Marcin
name: Stark, Oded
name: Jakubek, Marcin
Publisher: name: Unknown
Year: 2021
Subjects: subject: Institutional and Behavioral Economics
subject: Labor and Human Capital
subject: Employer sanctions
subject: Illegal migrant laborers
subject: Welfare of native laborers

description: This chapter investigates the impact of the imposition of sanctions for employing illegal migrants on the welfare of native laborers. In response to such sanctions, managers in a firm may be reassigned from the supervision of production to the verification of the legality of the firm’s labor force. The chapter analyzes three different conditions of the host country’s labor market: full employment, voluntary unemployment, and minimal wage in combination with involuntary unemployment. It is shown that when the sanctions are steep enough, a profit-maximizing firm will assign managers to verification, which impedes the firm’s productivity. The impact on the wages and / or employment of the native laborers depends on the efficiency of the verification technology, namely on the percentage of the “filtered out” illegal laborers in relation to the fraction of reassigned managers. If this efficiency is not high enough, the sanctions bring in their wake consequences that fly in the face of the very aim of their introduction: the welfare of the native laborers will take a beating.
Supporting the Research Software Development Community at DLR
Creators: name: Schlauch, Tobias
Publisher: name: Zenodo
Year: 2022
Subjects: rse
community-building

description: This talk gives an overview about the central support activities for the research software development community at DLR. Particularly, we focus on the communication and collaboration aspects. In this context, we share our experiences about the communication structures, events, and tools that have been established to enhance collaboration and knowledge exchange among researchers with regard to software development. The talk has been held as part of the HiRSE Seminar Series.
Fractional Action Cosmology: Emergent, Logamediate, Intermediate, Power law Scenarios of the Universe and Generalized Second Law of Thermodynamics
Creators: name: Debnath, Ujjal
name: Jamil, Mubasher
name: Chattopadhyay, Surajit
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In the framework of Fractional Action Cosmology (FAC), we study the generalized second law of thermodynamics for the Friedmann Universe enclosed by a boundary. We use the four well-known cosmic horizons as boundaries namely, apparent horizon, future event horizon, Hubble horizon and particle horizon. We construct the generalized second law (GSL) using and without using the first law of thermodynamics. To check the validity of GSL, we express the law in the form of four different scale factors namely emergent, logamediate, intermediate and power law. For Hubble, apparent and particle horizons, the GSL holds for emergent and logamediate expansions of the universe when we apply with and without using first law. For intermediate scenario, the GSL is valid for Hubble, apparent, particle horizons when we apply with and without first law. Also for intermediate scenario, the GSL is valid for event horizon when we apply first law but it breaks down without using first law. But for power law expansion, the GSL may be valid for some cases and breaks down otherwise.
description: 24 pages, 32 figures, Accepted in Int. J. Theor. Phys
Oscillations in the Habitable Zone around Alpha Centauri B
Creators: name: Forgan, Duncan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Alpha Centauri AB system is an attractive one for radial velocity observations to detect potential exoplanets. The high metallicity of both Alpha Centauri A and B suggest that they could have possessed circumstellar discs capable of forming planets. As the closest star system to the Sun, with well over a century of accurate astrometric measurements (and Alpha Centauri B exhibiting low chromospheric activity) high precision surveys of Alpha Centauri B's potential exoplanetary system are possible with relatively cheap instrumentation. Authors studying habitability in this system typically adopt habitable zones (HZs) based on global radiative balance models that neglect the radiative perturbations of Alpha Centauri A. We investigate the habitability of planets around Alpha Centauri B using 1D latitudinal energy balance models (LEBMs), which fully incorporate the presence of Alpha Centauri A as a means of astronomically forcing terrestrial planet climates. We find that the extent of the HZ is relatively unchanged by the presence of Alpha Centauri A, but there are variations in fractional habitability for planets orbiting at the boundaries of the zone due to Alpha Centauri A, even in the case of zero eccentricity. Temperature oscillations of a few K can be observed at all planetary orbits, the strength of which varies with the planet's ocean fraction and obliquity.
description: 10 pages, 9 figures, accepted for publication in MNRAS
CORRELATION OF SERUM VITAMIN D LEVELS WITH ASTHMA SEVERITY IN CHILDREN AGED 5-15 YEARS: A CROSS-SECTIONAL STUDY
Creators: name: Dr. SANA BARKAT ALI
name: Dr. AFSHEEN ZEHRA
name: Dr. KANWAL KALWER
Publisher: name: Zenodo
Year: 2024
Subjects: Asthma, Children, Vitamin D, Asthma Severity, Pediatric, Cross-Sectional Study, 25-Hydroxyvitamin D.

description: Abstract

Objective: This study aimed to investigate the correlation between serum vitamin D levels and asthma severity in children aged 5-15 years. Methodology: A cross-sectional study was conducted from February 2, 2022, to July 30, 2022 at JPMC Karachi, involving 150 children diagnosed with asthma at a tertiary care hospital. Participants were selected based on strict inclusion and exclusion criteria, ensuring a focus on asthma without confounding chronic conditions. Serum 25-hydroxyvitamin D [25(OH)D] levels were measured, and asthma severity was classified according to the Global Initiative for Asthma (GINA) guidelines. Data were collected through blood samples, spirometry, and structured questionnaires. Statistical analysis included Pearson’s correlation to evaluate the relationship between vitamin D levels and asthma severity, ANOVA to compare vitamin D levels across severity categories, and multivariate regression analysis to control for potential confounders such as age, gender, BMI, and sunlight exposure. Results: The study found a significant negative correlation between serum vitamin D levels and asthma severity (r = -0.48, p < 0.001). Children with severe asthma had the lowest mean vitamin D levels (19.5 ± 6.3 ng/mL), while those with mild asthma had the highest levels (28.7 ± 7.8 ng/mL) (p = 0.001). Multivariate regression analysis confirmed the association between lower vitamin D levels and increased asthma severity, independent of other variables (β = -0.34, p = 0.002). Conclusion: Lower serum vitamin D levels are significantly associated with increased asthma severity in children. Addressing vitamin D deficiency may play a crucial role in managing asthma severity in pediatric populations.
Temperature Scanning Stress Relaxation of an Autonomous Self-Healing Elastomer Containing Non-Covalent Reversible Network Junctions
Creators: name: Das, Amit
name: Sallat, Aladdin
name: Böhme, Frank
name: Sarlin, Essi
name: Vuorinen, Jyrki
name: Vennemann, Norbert
name: Heinrich, Gert
name: Stöckelhuber, Klaus Werner
Publisher: name: Basel : MDPI
Year: 2018
Subjects: subject: Bromo-butyl rubber
subject: Ionic modification
subject: Reversible polymer network
subject: Self-healing
subject: Stress-relaxation
subject: 540

description: In this work, we report about the mechanical relaxation characteristics of an intrinsically self-healable imidazole modified commercial rubber. This kind of self-healing rubber was prepared by melt mixing of 1-butyl imidazole with bromo-butyl rubber (bromine modified isoprene-isobutylene copolymer, BIIR). By this melt mixing process, the reactive allylic bromine of bromo-butyl rubber was converted into imidazole bromide salt. The resulting development of an ionic character to the polymer backbone leads to an ionic association of the groups which ultimately results to the formation of a network structure of the rubber chains. The modified BIIR thus behaves like a robust crosslinked rubber and shows unusual self-healing properties. The non-covalent reversible network has been studied in detail with respect to stress relaxation experiments, scanning electron microscopic and X-ray scattering.
The dynamics, appearance and demographics of relativistic jets triggered by tidal disruption of stars in quiescent supermassive black holes
Creators: name: De Colle, Fabio
name: Guillochon, James
name: Naiman, Jill
name: Ramirez-Ruiz, Enrico
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We examine the consequences of a model in which relativistic jets can be triggered in quiescent massive black holes when a geometrically thick and hot accretion disk forms as a result of the tidal disruption of a star. To estimate the power, thrust and lifetime of the jet, we use the mass accretion history onto the black hole as calculated by detailed hydrodynamic simulations of the tidal disruption of stars. We go on to determine the states of the interstellar medium in various types of quiescent galactic nuclei, and describe how this external matter can affect jets propagating through it. We use this information, together with a two-dimensional hydrodynamic model of the structure of the relativistic flow, to study the dynamics of the jet, the propagation of which is regulated by the density stratification of the environment and by its injection history. The breaking of symmetry involved in transitioning from one to two dimensions is crucial and leads to qualitatively new phenomena. Many of the observed properties of the Swift 1644+57/GRB 110328A event can be understood as resulting from accretion onto and jets driven by a $10^6 M_\odot$ central mass black hole following the disruption of sun-like star. With the inclusion of a stochastic contribution to the luminosity due to variations in the feeding rate driven by instabilities near the tidal radius, we find that our model can explain the X-ray light curve without invoking a rarely-occurring deep encounter. In conjunction with the number density of black holes in the local universe, we hypothesize that the conditions required to produce the Swift event are not anomalous, but are in fact representative of the jet-driven flare population arising from tidal disruptions. [abridged]
description: 16 pages, 16 figures, submitted to ApJ
PIFSC report on the logbook program for the American Samoa longline fishery, October-December 2013.
Creators: name: Pacific Islands Fisheries Science Center (U.S.)
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Pacific Islands Fisheries Science Center
Year: 2014
Subjects: subject: Longlining (Fisheries)--Monitoring--American Samoa.

description: The American Samoa longline fishery continues to experience extremely challenging conditions. Catch of its primary target species, albacore tuna remains at a record low level, in comparison with long term averages. In the 4th quarter, catches of most other marketable species also continued to be lower during 2013 than during 2014, as was the case in the earlier quarters of 2013. Increasing catches of low volume-higher-priced species, such as mahimahi and yellowfin tuna, may indicate a gradual adaptation of the fishery to target species that can be sold to local fresh fish markets where these species are preferred, and where higher prices are available than at the cannery. A summary of the fishery’s catch and effort statistics for the fourth quarter of 2013, based on date of haul, is provided in Table 1. This table was derived from all logbook data submitted to the American Samoa Department of Marine and Wildlife Resources, by February 19, 2013. Table 1 reflects data from an estimated 100% of sets made during this quarter.