cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Digitale Wissenschaftskommunikation
Creators: name: Gebert, Björn
Publisher: name: UNSPECIFIED
Year: 2020

description: Wie können Schüler*innen und Wissenschaftler*innen schon im Unterricht und in Seminaren an Werkzeuge und Methoden digitaler Wissenschaftskommunikation herangeführt werden? Nach einer Begriffsbestimmung wird in dem Artikel zunächst eine Reihe digitaler und kostenfrei nutzbarer Medien/Netzwerke/Apps vorgestellt und in Hinblick auf ihre Nutzung in der Wissenschaftskommunikation charakterisiert – mit Fokus auf den Geisteswissenschaften und auf jenen Medien/Netzwerken/Apps, mit denen Inhalte geteilt werden, die sich prinzipiell an eine breitere Öﬀentlichkeit als die der eigenen Arbeitsgruppe etc. richten. Dabei werden auch einige didaktische Möglichkeiten skizziert, die sich dabei jeweils eröﬀnen – über das für sich allein schon sinnvolle gemeinsame, angeleitete Ausprobieren und mehr oder minder spielerische Erlernen der Tools im, bei entsprechenden Privatsphäreeinstellungen, weitgehend geschützten Raum von Unterricht und Hochschullehre hinaus.
Classical and Quantum Dynamics on Orbifolds
Creators: name: Kordyukov, Yuri A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We present two versions of the Egorov theorem for orbifolds. The first one is a straightforward extension of the classical theorem for smooth manifolds. The second one considers an orbifold as a singular manifold, the orbit space of a Lie group action, and deals with the corresponding objects in noncommutative geometry.
Critic-proofing: how using critic reviews and game genres can refine heuristic evaluations
Creators: name: Livingston, Ian J.
name: Mandryk, Regan L.
name: Stanley, Kevin G.
Publisher: name: ACM
Year: 2010

description: Heuristic evaluation -- a technique where experts inspect software and determine where the application violates predetermined policies for good usability - is an effective technique for evaluating productivity software. The technique has recently been applied to video games, examining playability and usability for both single and multiplayer games. However, the severity ratings assigned to usability problems and used as a coarse categorization method for triage are still subjectively and somewhat arbitrarily assigned by evaluators, offering limited organizational value. In addition, they fail to account for the diversity found between games and game genres. In this paper we present a modified heuristic evaluation technique, which produces a prioritized list of heuristic violations based on the problem's frequency, impact, persistence, the heuristic it violates, and the game's genre. We evaluate our technique in a case study and show that the technique provides substantial value with little additional effort.
Wissenschaft und Aussenpolitik. Beiträge zur Tagung anlässlich des 50. Jubiläums der Schaffung des ersten Postens eines Schweizerischen Wissenschaftsattachés
Creators: name: Zala, Antoine Fleury Und Sacha
Publisher: name: Diplomatische Dokumente der Schweiz (DDS)
Year: 2012

description: Am 1. Oktober 2008 jährte sich zum 50. Mal die Schaffung des ersten Postens eines Wissenschaftsrats in der schweizerischen Botschaft in Washington. Heute sind für die Schweiz 17 Wissenschaftsrätinnen und -räte im Ausland tätig. Sie arbeiten in Schweizer Botschaften oder in einem der «Swissnex», einem Schweizer Haus für Wissenschaftsaustausch. Der historische Kontext und die Entwicklung der Wissenschaftsaussenpolitik waren bisher jedoch kaum erforscht. Im Dezember 2008 organisierten die Diplomatischen Dokumente der Schweiz (DDS), zusammen mit dem Staatssekretariat für Bildung und Forschung (SBF) und mit der Unterstützung des Departements für auswärtige Angelegenheiten (EDA) zu diesem Thema eine internationale Tagung in Bern. Ziel des Anlasses war es, die Geschichte und die aktuelle Tätigkeit der Schweizer Wissenschaftsattaché(e)s vorzustellen. Im vorliegenden Band werden nun die Forschungsresultate der Tagungsbeiträge präsentiert.
Dynamic PL&T using Two Reference Nodes Equipped with Steered Directional Antenna for Significant PL&T Accuracy
Creators: name: Shakhakarmi, Niraj
name: Vaman, Dhadesugoor R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Dynamic Position Location and Tracking (PL&T) is proposed deploying the integrated approach of zone finding and triangulation using two friendly nodes equipped with Steered Directional Antenna (DA) in Mobile Ad hoc Networks (MANET). This approach allows the system to use only two references instead of a typical 3 references for a straight triangulation. Moreover, the performance of the proposed algorithm with references using directional antennas shows significant improvement over triangulation using references with Omnidirectional antennas as the beam power is concentrated. However, dynamic switching of reference nodes is frequently required as the target moves outside the predicted zone. This paper presents a better tracking accuracy in using proposed dynamic PL&T as compared to other PL&T techniques. The multipath fading is also addressed with the use of KV transform coding technique which uses forward error correction and sample interleaving achieves greater than 90% tracking accuracy with BERs of 10-6 or better.
description: 7 pages, 12 figures
Additional file 1 of Community structure, environmental conditions and anthropogenic pressure on the habitat of the European endemic aquatic plant Luronium natans (L.) Raf.
Creators: name: Banaś, Krzysztof
name: Ronowski, Rafał
name: Chmara, Rafał
name: Szmeja, Józef
Publisher: name: figshare
Year: 2023
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Water conditions in the Luronium natans community with species with a frequency > 5%. Explanations: 1- I. lacustris, 2- L. dortmanna, 3- S. denticulatum, 4- M. alterniflorum, 5-J. bulbosus, 6- E. canadensis, 7- W. exannulata, 8-L. uniflora. 9- E. palustris. Figure S2. Oxygenation and water temperature, PAR light intensity and water transparency in the Luronium community with species with a frequency > 5%. Explanations see Fig. S1. Figure S3. Environmental conditions in the sediment in Luronium community with species with a frequency > 5%. Explanations see Fig. S1. Figure S4. Differences in the depth of occurrence, PAR intensity, water oxygenation and temperature between habitats of L. natans (Ln) and other isoetids (Il - I. lacustris, Ld - L. dortmanna and Lu - L. uniflora). Statistically significant differences were determined with p<0.001 - ***, p<0.01- **, p<0.05 - *. Figure S5. Difference in pH, redox potential, calcium concentration and water conductivity between habitats of L. natans (Ln) and other isoetids (Il - I. lacustris, Ld - L. dortmanna and Lu - L. uniflora). Statistically significant differences were determined with p<0.001 - ***, p<0.01- **, p<0.05 - *. Figure S6. Differences in water transparency and color, nitrogen and phosphorus concentration between habitats of L. natans (Ln) and other isoetids (Il - I. lacustris, Ld - L. dortmanna and Lu - L. uniflora). Statistically significant differences were determined with p<0.001- ***, p<0.01 - **, p<0.05 - *. Figure S7. Differences in pH, redox potential, calcium concentration and sediment conductivity between habitats of L. natans (Ln) and other isoetids (Il - I. lacustris, Ld - L. dortmanna and Lu - L. uniflora). Statistically significant differences were determined with p<0.001 - ***, p<0.01- **, p<0.05 - *. Figure S8. Differences in nitrogen and phosphorus concentration, organic matter and sediment hydration between habitats of L. natans (Ln) and other isoetids (Il -I. lacustris, Ld - L. dortmanna and Lu - L. uniflora). Statistically significant differences were determined with p<0.001 - ***, p<0.01- **, p<0.05 - *.
Radiation Reaction: General approach and applications, especially to electrodynamics
Creators: name: O'Connell, R. F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Radiation reaction (but, more generally, fluctuations and dissipation) occurs when a system interacts with a heat bath, a particular case being the interaction of an electron with the radiation field. We have developed a general theory for the case of a quantum particle in a general potential (but, in more detail, an oscillator potential) coupled to an arbitrary heat bath at arbitrary temperature, and in an external time-dependent $c$-number field. The results may be applied to a large variety of problems in physics but we concentrate by showing in detail the application to the blackbody radiation heat bath, giving an exact result for radiation reaction problem which has no unsatisfactory features such as the runaway solutions associated with the Abraham-Lorentz theory. In addition, we show how atomic energy and free energy shifts due to temperature may be calculated. Finally, we give a brief review of applications to Josephson junctions, quantum statistical mechanics, mesoscopic physics, quantum information, noise in gravitational wave detectors, Unruh radiation and the violation of the quantum regression theorem
Ivermectin for Covid-19
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2020
Subjects: Covid-19
Ivermectin
Hydroxychloroquine
Doxycycline
azithromycin

description: Discussion of scholar papers published on Ivermectin and of some news that we can find about its use for Covid-19. A list of clinical trials is also given. The discussion was made in a series of versions from 14 June to 16 July 2020. For what concerns scholar papers, we report among them a preprint posted on 10 June in MedRχiv, which concludes that Ivermectin was associated with lower mortality during treatment of Covid-19. We report also the preprint, posted on 8 July in MedRχiv too, showing the result of a clinical trial. This preprint tells, in its conclusions that add-on use of Ivermectin is giving better results when compared to controls, in particular a significant shorter hospital stay. From news, we consider in particular the case of Iquitos, capital city of the Loreto Region in Peru, where, by May 25, Covid-19 cases and deaths had dropped notably, as reported on the web. The formulation of ivermectin used in Peru is also discussed, in particular that of the oral solution disclosed by the Peruvian Government.
description: Before reading this work, please consider that I am not a physician. I do not suggest the use of ivermectin. I am not touting this drug. This analysis of publications and news about ivermectin is made in the framework of a wider investigation about information concerning drugs used for Covid-19.
The L^1-norm of exponential sums in Z^d
Creators: name: Petridis, Giorgis
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: Let A be a finite set of integers and F_A its exponential sum. McGehee, Pigno & Smith and Konyagin have independently proved that the L^1-norm of F_A is at least c log|A| for some absolute constant c. The lower bound has the correct order of magnitude and was first conjectured by Littlewood. In this paper we present lower bounds on the L^1-norm of exponential sums of sets in the d-dimensional grid Z^d. We show that the L^1-norm of F_A is considerably larger than log|A| when A is a subset of Z^d with multidimensional structure. We furthermore prove similar lower bounds for sets in Z, which in a technical sense are multidimensional and discuss their connection to an inverse result on the theorem of McGehee, Pigno & Smith and Konyagin.
description: 13 pages. Section 5 has been modified. Conjecture 5.1 has been changed and is now called a question. The logarithmic lower bound on the L^1-norm of exponential sums of random sets in {1,...,N}^2 (Corollary 1.2 of version 1) is very weak and has been removed
Orbits, masses, and evolution of main belt triple (87) Sylvia
Creators: name: Fang, Julia
name: Margot, Jean-Luc
name: Rojo, Patricio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Sylvia is a triple asteroid system located in the main belt. We report new adaptive optics observations of this system that extend the baseline of existing astrometric observations to a decade. We present the first fully dynamical 3-body model for this system by fitting to all available astrometric measurements. This model simultaneously fits for individual masses, orbits, and primary oblateness. We find that Sylvia is composed of a dominant central mass surrounded by two satellites orbiting at 706.5 +/- 2.5 km and 1357 +/- 4.0 km, i.e., about 5 and nearly 10 primary radii. We derive individual masses of 1.484 -0.014/+0.016 x 10^19 kg for the primary (corresponding to a density of 1.29 +/- 0.39 g cm^-3), 7.33 -2.3/+4.7 x 10^14 kg for the inner satellite, and 9.32 -8.3/+20.7 x 10^14 kg for the outer satellite. The oblateness of the primary induces substantial precession and the J_2 value can be constrained to the range of 0.0985-0.1. The orbits of the satellites are relatively circular with eccentricities less than 0.04. The spin axis of the primary body and the orbital poles of both satellites are all aligned within about two degrees of each other, indicating a nearly coplanar configuration and suggestive of satellite formation in or near the equatorial plane of the primary. We also investigate the past orbital evolution of the system by simulating the effects of a recent passage through 3:1 mean-motion eccentricity-type resonances. In some scenarios this allow us to place constraints on interior structure and past eccentricities.
description: 14 pages, 8 figures, accepted to AJ
Additional file 1 of Associations between changes in habitual sleep duration and lower self-rated health among COVID-19 survivors: findings from a survey across 16 countries/regions
Creators: name: Matsui, Kentaro
name: Chung, Frances
name: Bjelajac, Adrijana Koscec
name: Merikanto, Ilona
name: Korman, Maria
name: Mota-Rolim, Sérgio
name: Cunha, Ana Suely
name: Bjorvatn, Bjørn
name: Xue, Pei
name: Benedict, Christian
name: Morin, Charles M.
name: Espie, Colin A.
name: Landtblom, Anne-Marie
name: Penzel, Thomas
name: De Gennaro, Luigi
name: Holzinger, Brigitte
name: Hrubos-Strøm, Harald
name: Leger, Damien
name: Bolstad, Courtney J.
name: Nadorff, Michael R.
name: Plazzi, Giuseppe
name: Reis, Catia
name: Chan, Ngan Yin
name: Wing, Yun Kwok
name: Yordanova, Juliana
name: Dauvilliers, Yves
name: Partinen, Markku
name: Inoue, Yuichi
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: Cancer
subject: Mental Health
subject: Computational Biology

description: Additional file 1: Supplementary Table 1. Exclusions.Supplementary Table 2. Multiple linear regression for self-rated health in participants who did not test positive for COVID-19 (n = 9,285). Supplementary Table 3. Multiple linear regression with country fixed effects for self-rated health in participants who did not test positive for COVID-19 (n = 9,285). Supplementary Table 4. Multiple linear regression for self-rated health in COVID-19 group (n= 1,509). Supplementary Table 5. Multiple linear regression with country fixed effects for self-rated health in COVID-19 group (n= 1,509). Supplementary Table 6. Ethical approval data.
Forward Jets and Forward-Central Jets at CMS
Creators: name: Sen, Niladri
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report on cross section measurements for inclusive forward jet production and for the simultaneous production of a forward and a central jet in sqrt{s} = 7 TeV pp-collisions. Data collected in 2010, corresponding to an integrated luminosity of 3.14 pb^{-1}, is used for the measurements. Jets in the transverse momentum range pT = 35 - 140 GeV/c are reconstructed with the anti-kT (R = 0.5) algorithm. The extended coverage of large pseudo-rapidities is provided by the Hadronic Forward calorimeter (3.2 < η< 4.7), while central jets are limited to η< 2.8, covered by the main detector components. The two differential cross sections are presented as a function of the jet transverse momentum. Comparisons to next-to-leading order perturbative calculations, and predictions from event generators based on different parton showering mechanisms (PYTHIA and HERWIG) and parton dynamics (CASCADE) are shown.
description: 4 pages, 4 figures, PANIC'11 conference proceedings
Spectral distribution and wavefunction of electrons emitted from a single particle source in the quantum Hall regime
Creators: name: Battista, F.
name: Samuelsson, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate theoretically a scheme for spectroscopy of electrons emitted by an on-demand single particle source. The total system, with an electron turnstile source and a single level quantum dot spectrometer, is implemented with edge states in a conductor in the quantum Hall regime. Employing a Floquet scattering approach, the source and the spectrometer are analyzed within a single theoretical framework. The non-equilibrium distribution of the emitted electrons is analyzed via the direct current at the dot spectrometer. In the adiabatic and intermediate source frequency regimes, the distribution is found to be strongly peaked around the active resonant level of the turnstile. At high frequencies the distribution is split up into a set of fringes, resulting from the interplay of resonant transport through the turnstile and absorption or emission of individual Floquet quanta. For ideal source operation, with exactly one electron emitted per cycle, an expression for the single electron wavefunction is derived.
description: 12 pages, 7 figures
Human-Centered Design for Health Information Technology: A Qualitative Approach
Creators: name: Tang, Charlotte
name: Carpendale, Sheelagh
Publisher: name: IGI Global
Year: 2011

description: This chapter presents issues that may arise in human-centered research in health care environments. The authors first discuss why human-centered approach is increasingly employed to study and to design health care technology. They then present some practical concerns that may arise when conducting qualitative research in medical settings, from research design, to data collection and data analysis, and to technology design. Many of these concerns were also experienced in their own human-centered field studies conducted in the last few years. The authors conclude the chapter by illustrating some of these issues using their own research case study that investigated nurses’ information flow in a hospital ward.
Linear approach to the orbiting spacecraft thermal problem
Creators: name: Gaite, Jose
name: Fernandez-Rico, German
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Systems and Control (eess.SY)
subject: Classical Physics (physics.class-ph)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences
subject: J.2
subject: 93C73 (Primary) 70J10, 34.04 (Secondary)

description: We develop a linear method for solving the nonlinear differential equations of a lumped-parameter thermal model of a spacecraft moving in a closed orbit. Our method, based on perturbation theory, is compared with heuristic linearizations of the same equations. The essential feature of the linear approach is that it provides a decomposition in thermal modes, like the decomposition of mechanical vibrations in normal modes. The stationary periodic solution of the linear equations can be alternately expressed as an explicit integral or as a Fourier series. We apply our method to a minimal thermal model of a satellite with ten isothermal parts (nodes) and we compare the method with direct numerical integration of the nonlinear equations. We briefly study the computational complexity of our method for general thermal models of orbiting spacecraft and conclude that it is certainly useful for reduced models and conceptual design but it can also be more efficient than the direct integration of the equations for large models. The results of the Fourier series computations for the ten-node satellite model show that the periodic solution at the second perturbative order is sufficiently accurate.
description: 20 pages, 11 figures, accepted in Journal of Thermophysics and Heat Transfer
Photonic Analogue of Two-dimensional Topological Insulators and Helical One-Way Edge Transport in Bi-Anisotropic Metamaterials
Creators: name: Khanikaev, Alexander B.
name: Mousavi, S. Hossein
name: Tse, Wang-Kong
name: Kargarian, Mehdi
name: MacDonald, Allan H.
name: Shvets, Gennady
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Recent progress in understanding the topological properties of condensed matter has led to the discovery of time-reversal invariant topological insulators. Because of limitations imposed by nature, topologically non-trivial electronic order seems to be uncommon except in small-band-gap semiconductors with strong spin-orbit interactions. In this Article we show that artificial electromagnetic structures, known as metamaterials, provide an attractive platform for designing photonic analogues of topological insulators. We demonstrate that a judicious choice of the metamaterial parameters can create photonic phases that support a pair of helical edge states, and that these edge states enable one-way photonic transport that is robust against disorder.
description: 13 pages, 3 figures
Scaling laws in the diffusion limited aggregation of persistent random walkers
Creators: name: Nogueira, Isadora R.
name: Alves, Sidiney G.
name: Ferreira, Silvio C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the diffusion limited aggregation of particles executing persistent random walks. The scaling properties of both random walks and large aggregates are presented. The aggregates exhibit a crossover between ballistic and diffusion limited aggregation models. A non-trivial scaling relation $ξ\sim\ell^{1.25}$ between the characteristic size $ξ$, in which the cluster undergoes a morphological transition, and the persistence length $\ell$, between ballistic and diffusive regimes of the random walk, is observed.
description: 13 pages, 7 figures; Physica A: Statistical Mechanics and its Applications, In Press, Uncorrected Proof, Available online 8 July 2011, ISSN 0378-4371
Additional file 1 of How healthy participants value additional diagnostic testing with amyloid-PET in patients diagnosed with mild cognitive impairment — a bidding game experiment
Creators: name: van Maurik, I. S.
name: Bakker, E. D.
name: van Unnik, A. A. J. M.
name: Broulikova, H. M.
name: Zwan, M. D.
name: van de Giessen, E.
name: Berkhof, J.
name: Bouwman, F. H.
name: Bosmans, J. E.
name: van der Flier, W. M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mental Health

description: Additional file 1: Supplemental Information 1. Information provided to participants in the survey. Supplemental Table 1. Highest monetary values by health benefit. Supplemental Table 2. Willingness-to-pay results from random effect model after winsorization.
Integrating 2D Mouse Emulation with 3D Manipulation for Visualizations on a Multi-Touch Table
Creators: name: Vlaming, Luc
Publisher: name: Johann Bernoulli Institute for Mathematics and Computer Science (FWN-JBI-SVCG) University of Groningen
Year: 2010

description: Research Location: Interactions Laboratory, Department of Computer Science, University of Calgary, 2010.
Observer Design for Takagi-Sugeno Descriptor System with Lipschitz Constraints
Creators: name: Ilhem, Kilani
name: Dalel, Jabri
name: Saloua, Bel Hadj Ali
name: Naceur, Abdelkrim Mohamed
Publisher: name: arXiv
Year: 2012
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper investigates the design problem of observers for nonlinear descriptor systems described by Takagi-Sugeno (TS) system; Depending on the available knowledge on the premise variables two cases are considered. First a TS descriptor system with measurables premises variables are proposed. Second, an observer design which satisfying the Lipschitz condition is proposed when the premises variables are unmeasurables. The convergence of the state estimation error is studied using the Lyapunov theory and the stability conditions are given in terms of Linear Matrix Inequalities (LMIs). Examples are included to illustrate those methods.
description: 13 pages,5 figures; International Journal of Instrumentation and Control Systems (IJICS) Vol.2, No.2, April 2012
Vibrational contribution to the thermodynamics of nanosized precipitates: vacancy-copper clusters in bcc-Fe
Creators: name: Talati, M.
name: Posselt, M.
name: Bonny, G.
name: Al-Motasem, A. T.
name: Bergner, F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Within the harmonic approximation, the effects of lattice vibration on the thermodynamics of nano-sized coherent clusters in bcc-Fe consisting of vacancies and/or copper are investigated. A combination of on-lattice simulated annealing based on Metropolis Monte Carlo simulations and off-lattice relaxation by Molecular Dynamics is applied to obtain the most stable cluster configurations at T = 0 K. The most recent interatomic potential built within the framework of the embedded atom method for the Fe-Cu system is used. The vibrational part of the total free energy of defect clusters in bcc-Fe is calculated using their phonon density of states. The total free energy of pure bcc-Fe and fcc-Cu as well as the total formation free energy and the total binding free energy of the vacancy-copper clusters are determined for finite temperatures. Our results are compared with the available data from previous investigations performed using empirical many-body interatomic potentials and first-principle methods. For further applications in rate theory and object kinetic Monte Carlo simulations, the vibrational effects evaluated in the present study are included in the previously derived analytical fits based on the classical capillary model.
description: 6 figures
Investigation of the presence of GnRH and GnRH-R system in bovine oocytes, sperm and early embryos and their functional role in reproduction
Creators: name: Perera, Uswatteliyanaralalage Felicia Ruwanie
Publisher: name: University of British Columbia
Year: 2010

description: The objectives of this study were to investigate: 1) the effect of GnRH agonist on oocyte maturation, sperm function and fertilization, 2) the presence of GnRH-R in bovine oocytes, sperm and early embryos. To examine the effect of GnRH agonist on sperm function, sperm were incubated in modified Tyrode’s medium with 0, 0.2, 0.4, 0.8 and 1.2 µgmL⁻¹ of buserelin and with1 µgmL⁻¹ P₄ for 3 h. Acrosome status in each group was assessed at 0 h and 3 h. For zona-binding assay, in vitro matured oocytes were co-incubated with sperm in different concentrations of buserelin and P₄ for 4 h and the zona-bound sperm in each treatment group was determined. Acrosome reacted percentage were higher in sperm treated with 0.4, 0.8 µgmL⁻¹ buserelin than the control group (p<0.001). The number of zona-bound sperm were higher in 0.8 µgmL⁻¹ buserelin compared to negative control (p<0.01). Effect of buserelin was blocked by antide. To investigate the effect of GnRHa on maturation of bovine oocytes 0.8 µgmL⁻¹ buserelin was added to the in vitro maturation media and maturation rate was obtained after 24 h against control groups with FSH and without FSH. To assess the effect on fertilization rate one group of oocytes undergoing in vitro fertilization was treated with 0.8 µgmL⁻¹ buserelin, while in vitro fertilization without buserelin served as control. Maturation rate was not different among the groups and were 55.14 ± 0.39, 50.69 ± 0.42 and 43.5 ± 0.46 % for oocytes treated with FSH, buserelin and negative control, respectively. No difference was observed on fertilization rates, with fertilization rates being 55.25 ± 0.89 and 51.25 ± 0. 51% for buserelin treated and the control group, respectively. Presence of GnRH-R protein and mRNA on bovine sperm, oocytes, cumulus cells and early embryos were studied using immunostaining technique and RT-PCR. No receptors for GnRH were detected in bovine sperm, oocytes or early embryos studied and expression of GnRH-R mRNA was also not evident. GnRH-R mRNA was expressed by cumulus cells, immature and mature COC. GnRH receptor mRNA expression by mature COC was higher than immature COC (2.01±0.12 and 0.89±0.2).
Additional file 1 of Customized-individually-made origin® implants in total knee arthroplasty allow a reliable solution for accurate reproduction of planned implant positioning
Creators: name: Sajan, Martin
name: Moussa, Mohamad K.
name: Lefèvre, Nicolas
name: Payan, Charles
name: Valentin, Eugénie
name: Meyer, Alain
name: Bohu, Yoann
name: Khalaf, Zeinab
name: Grimaud, Olivier
name: Gerometta, Antoinne
name: Hardy, Alexandre
name: Khiami, Frédéric
Publisher: name: figshare
Year: 2023
Subjects: subject: Biophysics
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: Additional file 1: Appendix 1. Preoperative analysis Knee Plan® (Symbios, Yverdon-les-Bains, Switzerland). Annexe 2. Preoperative planning using the Knee Plan® (Symbios, Yverdon-les-bains, Suisses)
Effects of gamification on participation and data quality in a real-world market research domain
Creators: name: Cechanowicz, Jared
name: Gutwin, Carl
name: Brownell, Briana
name: Goodfellow, Larry
Publisher: name: ACM
Year: 2013

description: Gamification has become an increasingly popular way to improve user engagement and motivation, but there is currently a lack of empirical research to demonstrate that increased gamification provides these benefits. To help address this problem we designed three versions of a gamified market research survey and tested them alongside the established industry standard in a study of over 600 participants. We also highlight examples where game elements compromise respondent data, and provide design solutions that correct the problem without losing the motivational benefits of gamification.
Task-Driven Adaptive Statistical Compressive Sensing of Gaussian Mixture Models
Creators: name: Duarte-Carvajalino, Julio M.
name: Yu, Guoshen
name: Carin, Lawrence
name: Sapiro, Guillermo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: A framework for adaptive and non-adaptive statistical compressive sensing is developed, where a statistical model replaces the standard sparsity model of classical compressive sensing. We propose within this framework optimal task-specific sensing protocols specifically and jointly designed for classification and reconstruction. A two-step adaptive sensing paradigm is developed, where online sensing is applied to detect the signal class in the first step, followed by a reconstruction step adapted to the detected class and the observed samples. The approach is based on information theory, here tailored for Gaussian mixture models (GMMs), where an information-theoretic objective relationship between the sensed signals and a representation of the specific task of interest is maximized. Experimental results using synthetic signals, Landsat satellite attributes, and natural images of different sizes and with different noise levels show the improvements achieved using the proposed framework when compared to more standard sensing protocols. The underlying formulation can be applied beyond GMMs, at the price of higher mathematical and computational complexity.
Herschel Search for O2 Toward the Orion Bar
Creators: name: Melnick, Gary J.
name: Tolls, Volker
name: Goldsmith, Paul F.
name: Kaufman, Michael J.
name: Hollenbach, David J.
name: Black, John H.
name: Encrenaz, Pierre
name: Falgarone, Edith
name: Gerin, Maryvonne
name: Hjalmarson, Åke
name: Li, Di
name: Lis, Dariusz C.
name: Liseau, René
name: Neufeld, David A.
name: Pagani, Laurent
name: Snell, Ronald L.
name: van der Tak, Floris
name: van Dishoeck, Ewine F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the results of a search for molecular oxygen (O2) toward the Orion Bar, a prominent photodissociation region at the southern edge of the HII region created by the luminous Trapezium stars. We observed the spectral region around the frequency of the O2 N_J = 3_3 - 1_2 transition at 487 GHz and the 5_4 - 3_4 transition at 774 GHz using the Heterodyne Instrument for the Far Infrared on the Herschel Space Observatory. Neither line was detected, but the 3sigma upper limits established here translate to a total line-of-sight O2 column density < 1.5 10^16 cm^-2 for an emitting region whose temperature is between 30K and 250 K, or < 1 10^16 cm^-2 if the O2 emitting region is primarily at a temperature of ~< 100 K. Because the Orion Bar is oriented nearly edge-on relative to our line of sight, the observed column density is enhanced by a factor estimated to be between 4 and 20 relative to the face-on value. Our upper limits imply that the face-on O2 column density is less than 4 10^15 cm^-2, a value that is below, and possibly well below, model predictions for gas with a density of 10^4 - 10^5 cm^-3 exposed to a far ultraviolet flux 10^4 times the local value, conditions inferred from previous observations of the Orion Bar. The discrepancy might be resolved if: (1) the adsorption energy of O atoms to ice is greater than 800 K; (2) the total face-on Av of the Bar is less than required for O2 to reach peak abundance; (3) the O2 emission arises within dense clumps with a small beam filling factor; or, (4) the face-on depth into the Bar where O2 reaches its peak abundance, which is density dependent, corresponds to a sky position different from that sampled by our Herschel beams.
description: 30 pages, 7 figures, 1 table. Accepted for publication in ApJ
Gamifying behaviour that leads to learning
Creators: name: Watson, Diane
name: Hancock, Mark
name: Mandryk, Regan L.
Publisher: name: ACM
Year: 2013

description: Many courses require self-study to succeed. This is especially true of online courses. However, self-study activities, such as reading the textbook and completing the associated workbook, are not motivating and do not contribute directly to grades. As a result many students do not complete these activities and this may lead to a lower understanding of the material and a lower overall grade in the class. In this paper we present the prototype of a casual game, Reading Garden, which encourages self-study through casual gameplay.
A double component in GRB 090618: a proto-black hole and a genuinely long GRB
Creators: name: Izzo, L.
name: Ruffini, R.
name: Penacchioni, A. V.
name: Bianco, C. L.
name: Caito, L.
name: Chakrabarti, S. K.
name: Rueda, Jorge A.
name: Nandi, A.
name: Patricelli, B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The joint X and gamma-ray observations of GRB 090618 by a large number of satellites offer an unprecedented possibility of testing crucial aspects of theoretical models. In particular, it allows us to test (a) the formation of an optically thick e+e- baryon plasma self-accelerating to Lorentz factors in the range 200 < g < 3000; (b) its transparency condition with the emission of a component of 10^{53-54} baryons in the TeV region and (c) the collision of these baryons with the circumburst medium clouds, characterized by dimensions of 10^{15-16} cm. In addition, these observations offer the possibility of testing a new understanding of the thermal and power-law components in the early phase of this GRB. We test the fireshell model of GRBs in one of the closest (z = 0.54) and most energetic (Eiso = 2.90 x 10^{53} ergs) GRBs, namely GRB 090618. We analyze its emission using several spectral models, with special attention to the thermal and power-law components. We determine the fundamental parameters of a canonical GRB within the context of the fireshell model. We find evidences of the existence of two different episodes in GRB 090618. The first episode lasts 50 s and is characterized by a spectrum consisting of thermal component, which evolves between kT = 54 keV and kT = 12 keV. The second episode, which lasts for \sim 100s, behaves as a canonical long GRB with a Lorentz gamma factor at transparency of g = 495, a temperature at transparency of 29.22 keV and with characteristic masses of the surrounding clouds of \sim 10^{22-24} g. We support the recently proposed two-component nature of GRB 090618 by using specific theoretical analysis and illustrate that the episode 1 cannot be considered to be either a GRB or a part of a GRB event, but it appears to be related to the progenitor of the collapsing bare core leading to the formation of the black hole which we call a proto-black hole.
description: 19 pages, 18 figures. The abstract was reduced from the original one
FIAVL como vía de emancipación
Creators: name: Suing, Abel
Publisher: name: Zenodo
Year: 2023
Subjects: FIAVL
Comunicación
Ecuador
Loja
arte
Cultura
desarrollo

description: Publicación presentada en la sección de opinión del diario digital hora 32 https://hora32.com.ec/ que se edita en Loja (Ecuador)
Bundles over Nearly-Kahler Homogeneous Spaces in Heterotic String Theory
Creators: name: Klaput, Michael
name: Lukas, Andre
name: Matti, Cyril
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct heterotic vacua based on six-dimensional nearly-Kahler homogeneous manifolds and non-trivial vector bundles thereon. Our examples are based on three specific group coset spaces. It is shown how to construct line bundles over these spaces, compute their properties and build up vector bundles consistent with supersymmetry and anomaly cancelation. It turns out that the most interesting coset is $SU(3)/U(1)^2$. This space supports a large number of vector bundles which lead to consistent heterotic vacua, some of them with three chiral families.
description: 32 pages, reference added
Cardiovascular and metabolic function after thoracic spinal cord injury
Creators: name: Inskip, Jessica Ann
Publisher: name: University of British Columbia
Year: 2010

description: Spinal cord injury (SCI) has the potential to disrupt autonomic pathways in the spinal cord leading to a range of autonomic dysfunctions. The cardiovascular (CV) and metabolic sequelae can restrict the lives of individuals with SCI and contribute to the deterioration of their cardiometabolic health. Here I investigated the whole-body CV and metabolic ramifications of experimental SCI in rats. Complete thoracic SCI was performed at two different levels in order to determine whether these outcomes demonstrated a level dependence. High-(T3) and low-(T10) thoracic SCI both result in flaccid hindlimb paralysis, but have different effects on the level of supraspinal autonomic control. CV and metabolic function were assessed at several times post-injury to investigate changes over time. Animals with acute high-thoracic SCI displayed resting hypotension that resolved with time post-injury. However, their capacity to control blood pressure (BP) in response to physiological stimuli remained deficient; animals with high-thoracic SCI displayed pronounced orthostatic hypotension (OH) and severe episodes of sensory stimulation-induced hypertension known as autonomic dysreflexia (AD). The resting BP and heart rate of animals with low-thoracic SCI, and their ability to respond to orthostatic stress, was indistinguishable from sham controls. Lipid metabolism was also disordered by SCI in a level-dependent pattern. Animals with high-thoracic SCI carried increased white adipose tissue and had higher circulating triacylglycerol levels compared to animals with low-thoracic SCI and sham controls. However, there was no difference in the distribution of cholesterol-carrying lipoproteins. Carbohydrate metabolism in animals with SCI did not support the diabetic profile suggested by the lipid results. Overall, animals with SCI were more sensitive to glucose and insulin than sham-injured animals. The pronounced ketone response to fasting in animals with high-thoracic SCI suggests that there are diverse effects on substrate metabolism. This work introduces simple tests that can be performed to investigate several important and understudied autonomic outcomes of SCI. The results reveal the importance of the intact autonomic nervous system in regulating CV and metabolic function. The disparity between motor and autonomic function encourages modifying our current conventions so that we stratify subjects by their autonomic injury level and their motor deficits.
Supplementary document for A redundant information model for Fourier ptychographic microscopy - 6608120.pdf
Creators: name: gao, Huiqin
name: Pan, An
name: GAO, Yuting
name: zhang, yu
name: wan, quanzhen
name: Yao, Baoli
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplemental Document
Additional file 1 of Increasing serum miR-409-3p predicts the major adverse cardiac adverse events in elderly patients after hip fracture surgery
Creators: name: Sun, Zhengtao
name: Cheng, Kai
name: Jin, Guochao
name: Jia, Jian
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Hematology

description: Additional file 1: Table S1. Baseline information of study subjects.
The neutrino velocity anomaly as an explanation of the missing observation of neutrinos in coincidence with GRB
Creators: name: Autiero, D.
name: Migliozzi, P.
name: Russo, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The search for neutrinos emitted in coincidence with Gamma-Bay Burst has been so far unsuccessfully. In this paper we show that the recent result reported by the OPERA Collaboration on an early arrival time of muon neutrinos with respect to the one computed assuming the speed of light in vacuum could explain the null search for neutrinos in coincidence with Gamma-Ray Burst.
Spin-induced symmetry breaking in orbitally ordered NiCr_2O_4 and CuCr_2O_4
Creators: name: Suchomel, Matthew R.
name: Shoemaker, Daniel P.
name: Ribaud, Lynn
name: Kemei, Moureen C.
name: Seshadri, Ram
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: At room temperature, the normal oxide spinels NiCr_2O_4 and CuCr_2O_4 are tetragonally distorted and crystallize in the I4_1/amd space group due to cooperative Jahn-Teller ordering driven by the orbital degeneracy of tetrahedral Ni$^{2+}$ ($t_2^4$) and Cu$^{2+}$ ($t_2^5$). Upon cooling, these compounds undergo magnetic ordering transitions; interactions being somewhat frustrated for NiCr_2O_4 but not for CuCr_2O_4. We employ variable-temperature high-resolution synchrotron X-ray powder diffraction to establish that at the magnetic ordering temperatures there are further structural changes, which result in both compounds distorting to an orthorhombic structure consistent with the Fddd space group. NiCr_2O_4 exhibits additional distortion, likely within the same space group, at a yet-lower transition temperature of $T$ = 30 K. The tetragonal to orthorhombic structural transition in these compounds appears to primarily involve changes in NiO_4 and CuO_4 tetrahedra.
InTheMED D7.5 Report on the InTheMED Final Scientific Conference
Creators: name: Azevedo, Leonardo
name: Escada, Cláudia
Publisher: name: Zenodo
Year: 2023
Subjects: Final Scientific Conference
European Geosciences Union

description: Deliverable 7.5 reports on the Final Scientific Conference of the InTheMED project that took place at the EGU (European Geosciences Union) General Assembly 2023 in Vienna (Austria) from April 23rd to April 28th, 2023. The final conference was held on the last day, where there was the opportunity for the partners to present their results regarding their technical results obtained under the project framework.
description: This project is part of the PRIMA Programme supported by the European Union's Horizon 2020 Research and Innovation Programme under Grant Agreement No 1923.
Searching for continuous gravitational wave signals using LIGO and Virgo detectors
Creators: name: Leaci, Paola
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Direct and unequivocal detection of gravitational waves represents a great challenge of contemporary physics and astrophysics. A worldwide effort is currently operating towards this direction, building ever sensitive detectors, improving the modelling of gravitational wave sources and employing ever more sophisticated and powerful data analysis techniques. In this paper we review the current status of LIGO and Virgo ground based interferometric detectors and some data analysis tools used in the continuous wave searches to extract the faint gravitational signals from the interferometric noise data. Moreover we discuss also relevant results from recent continuous wave searches.
description: 9 pages, 1 figure, http://www.fisica.unisalento.it/iwra/index2.php
Additional file 1 of Association between high expression of intratumoral fibroblast activation protein and survival in patients with intrahepatic cholangiocarcinoma
Creators: name: Waki, Yuhei
name: Morine, Yuji
name: Noma, Takayuki
name: Takasu, Chie
name: Teraoku, Hiroki
name: Yamada, Shinichiro
name: Saito, Yu
name: Ikemoto, Tetsuya
name: Shimada, Mitsuo
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Supplementary Material 1