cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The role of active galactic nuclei in galaxy formation
Creators: name: Thomas, P. A.
name: Henriques, B. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use Monte-Carlo Markov chain techniques to constrain acceptable parameter regions for the Munich L-Galaxies semi-analytic galaxy formation model. Feedback from active galactic nuclei (AGN) is required to limit star-formation in the most massive galaxies. However, we show that the introduction of tidal stripping of dwarf galaxies as they fall into and merge with their host systems can lead to a reduction in the required degree of AGN feedback. In addition, the new model correctly reproduces both the metallicity of large galaxies and the fraction of intracluster light.
description: Monster's Fiery Breath Conference Proceedings, 4 pages
Kepler-4b: Hot Neptune-Like Planet of a G0 Star Near Main-Sequence Turnoff
Creators: name: Borucki, William J.
name: Koch, Davig G.
name: Brown, Timothy M.
name: Basri, Gibor
name: Batalha, Natalie
name: Caldwell, Douglas A.
name: Cochran, William D.
name: Dunham, Edward W.
name: Gautier, Thomas N.
name: Geary, John C.
name: Gilliland, Ronald L.
name: Howell, Steve B.
name: Jenkins, Jon M.
name: Latham, David W.
name: Lissauer, Jack J.
name: Marcy, Geoffrey W.
name: Monet, David
name: Rowe, Jason F.
name: Sasselov, Dimitar
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Early time-series photometry from NASA's Kepler spacecraft has revealed a planet transiting the star we term Kepler-4, at RA = 19h02m27.68s, Dec = +50:08:08.7. The planet has an orbital period of 3.213 days and shows transits with a relative depth of 0.87 x 10^{-3} and a duration of about 3.95 hours. Radial velocity measurements from the Keck HIRES spectrograph show a reflex Doppler signal of 9.3 (+1.1 -1.9) m/s, consistent with a low-eccentricity orbit with the phase expected from the transits. Various tests show no evidence for any companion star near enough to affect the light curve or the radial velocities for this system. From a transit-based estimate of the host star's mean density, combined with analysis of high-resolution spectra, we infer that the host star is near turnoff from the main sequence, with estimated mass and radius of 1.223 (+0.053 -0.091) solar masses and 1.487 (+0.071 -0.084) solar radii. We estimate the planet mass and radius to be 24.5 +/- 3.8 Earth masses and 3.99 +/- 0.21 Earth radii. The planet's density is near 1.9 g/cm^3; it is thus slightly denser and more massive than Neptune, but about the same size.
description: 9 pages, 4 Figures, 1 Table. Submitted to Ap.J. Letters
Community Relationship Factors Impacting Levels of Loneliness in LGBTQ+ Adults: A Scoping Review
Creators: name: Bauer, Kyla
name: DeSanto, Kristen
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Public Health
subject: Medicine and Health Sciences
subject: Community Health and Preventive Medicine
subject: LGBTQ+
subject: Loneliness

description: A scoping review to identify factors capturing social interactions across the Social Ecological Model that are significantly correlated with loneliness outcomes, or are key aspects of loneliness experiences, in LGBTQ+ adults.
The influences of the Holy Sepulchre on architecture in the Mediterranean basin from the fourth to the end of the seventh centuries
Creators: name: Schutt, Karl Robert
Publisher: name: University of British Columbia
Year: 2011

description: The Holy Sepulchre in Jerusalem was built by Constantine from 327 to 335. It consisted of a basilica, the Martyrion, and a small edicula over the tomb of Christ, known as the Tegurium. By the end of the fourth century a Rotunda was built over the edicula. This complex was quite unique in Christian architecture from the fourth to the end of seventh centuries but this paper reveals that it was not a popular architectural group to serve as a model for other churches in the Mediterranean basin. Only one building, the Cathedral of Ravenna, built by Ursian and dedicated to the "Resurrection", can be termed a "copy", and it only duplicated certain architectural features from the Martyrion, while the Rotunda was completely ignored. Only three buildings, all rotundas, seemed to have been derived from the Anastasis Rotunda; S. Stefano Rotondo in Rome, SS, Karpos and Polykarpos in Constantinople and the moslem Dome of the Rock in Jerusalem. Although Medieval copies of this building were octagonal in plan, no octagonal copies of the Rotunda were constructed before the moslem invasions in the seventh century. No architectural reproductions of the Tegurium are known but the building may have served as a model for reliquaries. The ninth century complex of S. Stefano (San Sepolcro) in Bologna duplicated the group of buildings at the Holy Sepulchre and, although a number of fifth to eighth century church complexes have buildings grouped in a similar fashion, no copies from the Byzantine period are known. Buildings on the site of Christ's tomb were examined in turn by studying illustrations and descriptions of them. Churches throughout the Mediterranean basin were then compared to the restorations of the buildings in Jerusalem to determine if there were any resemblances. If a building only duplicated a number of architectural features or the dedication from the Holy Sepulchre it was considered to be a derivative. To be a copy, both features had to be evident in the secondary structure.
Streamwise-traveling waves of spanwise wall velocity for turbulent drag reduction
Creators: name: Quadrio, M.
name: Ricco, P.
name: Viotti, C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Waves of spanwise velocity imposed at the walls of a plane turbulent channel flow are studied by Direct Numerical Simulations. We consider sinusoidal waves of spanwise velocity which vary in time and are modulated in space along the streamwise direction. The phase speed may be null, positive or negative, so that the waves may be either stationary or traveling forward or backward in the direction of the mean flow. Such a forcing includes as particular cases two known techniques for reducing friction drag: the oscillating wall technique (a traveling wave with infinite phase speed) and the recently proposed steady distribution of spanwise velocity (a wave with zero phase speed). The traveling waves alter the friction drag significantly. Waves which slowly travel forward produce a large reduction of drag, that can relaminarize the flow at low values of the Reynolds number. Faster waves yield a totally different outcome, i.e. drag increase. Even faster waves produce a drag reduction effect again. Backward-traveling waves instead lead to drag reduction at any speed. The traveling waves, when they reduce drag, operate in similar fashion to the oscillating wall, with an improved energetic efficiency. Drag increase is observed when the waves travel at a speed comparable with that of the convecting near-wall turbulence structures. A diagram illustrating the different flow behaviors is presented.
title: Central Bank Digital Currency and Banking Choices
Creators: name: Li, Jiaqi
name: Usher, Andrew
name: Zhu, Yu
Publisher: name: Bank of Canada
publisherIdentifier: https://ror.org/05cc98565
publisherIdentifierScheme: ROR
Year: 2024

description: To what extent does a central bank digital currency (CBDC) compete with bank deposits? To answer this question, we develop and estimate a structural model where each household chooses which financial institution to deposit their digital money with. Households value the interest paid on digital money, the possibility of obtaining complementary financial products, and the access to in-branch services. A non-interest-bearing CBDC that does not provide complementary financial products can substantially crowd out bank deposits only if it provides an extensive service network. Imposing a large limit on CBDC holding would effectively mitigate this crowding out.
description: Dans quelle mesure une monnaie numérique de banque centrale (MNBC) concurrence-t-elle les dépôts bancaires? Pour répondre à cette question, nous élaborons et estimons un modèle structurel dans lequel chaque ménage choisit l’institution financière où déposer son argent numérique. Les ménages évaluent les intérêts servis sur l’argent numérique, la possibilité d’obtenir des produits financiers complémentaires et l’accès aux services en succursale. Une MNBC ne portant pas intérêt et non assortie de produits financiers complémentaires ne peut évincer dans une large mesure les dépôts bancaires que si elle est associée à un réseau de services étendu. L’imposition d’une limite élevée à la détention de MNBC atténuerait efficacement cet effet d’éviction.
QCD Dual
Creators: name: Sannino, Francesco
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We uncover a novel solution of the 't Hooft anomaly matching conditions for QCD. Interestingly in the perturbative regime the new gauge theory, if interpreted as a possible QCD dual, predicts the critical number of flavors above which QCD in the nonperturbative regime, develops an infrared stable fixed point. Remarkably this value is identical to the maximum bound predicted in the nonpertubative regime via the all-orders conjectured beta function for nonsupersymmetric gauge theories.
description: RevTeX, 13 pages. Added discussion on operator matching and flavor decoupling. Version to match the published one
Ophichthidae
Creators: name: Ho, Hsuan-Ching
name: Smith, David G.
name: Tighe, Kenneth A.
name: Hibino, Yusuke
name: Mccosker, John E.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Anguilliformes
Ophichthidae

description: Family Ophichthidae   In the previous volume, Ho et al. (2015b, c) listed 22 genera and 60 species in this family. In the present work, one new species and six new records are added. The total diversity of snake eels now includes 24 genera and 67. Some other unidentified or undescribed forms remain to be examined.
description: Published as part of Ho, Hsuan-Ching, Smith, David G., Tighe, Kenneth A., Hibino, Yusuke & Mccosker, John E., 2018, Checklist of eels of Taiwan (orders Anguilliformes and Saccopharyngiformes): An update, pp. 5-17 in Zootaxa 4454 (1) on page 13, DOI: 10.11646/zootaxa.4454.1.3, http://zenodo.org/record/1446687
An investigation of diet-induced thermogenesis during overfeeding, thermogenic responsiveness to ephedrine administration and diet-induced thermogenesis following propranolol administration
Creators: name: John, M
Publisher: name: University Of Tasmania
Year: 2023

description: The current obesity literature places strong emphasis upon the influence that Diet-Induced Thermogenesis (DIT) has on weight regulation and the possible mediating role of Brown Adipose Tissue (BAT) in DIT. This focus arises from animal research which establishes the significance of DIT and BAT in the energy balance of rodents. Recent studies indicate differential postprandial DIT between lean and obese individuals. The contribution of resting state DIT to energy balance is equivocal, a situation in part due to disagreement regarding the extent of excess energy needed to trigger the response, and individual differences in responding. At present, only catechol-amine stimulation studies suggest the active presence of BAT in adults. This thesis addresses four research questions arising from the obesity literature: (i) Does the DIT response to overfeeding in either post-prandial or resting state conditions show any change over five days overfeeding? (ii) Is a subject's responsiveness to a standard test of thermogenic capacity (i.e. stimulation by the sympatheticomimetic drug ephedrine) predictive of their DIT response to overfeeding? (iii) Is BAT involved in mediating the DIT response during the postprandial period? and (iv) Can the DIT response to overfeeding be blocked by the beta-adrenergic antagonist propranolol? These questions were investigated in two studies. Experiment 1, testing seven subjects, examined questions (i) to (iii), Experiment 2 examined question (iv) with the three strongest responders from the first experiment. DIT and response to sympathetic stimulation were measured through metabolic rate (02 consumption and HR) increase. BAT activity was assessed via skin temperature change at sites of probable BAT deposits. The results suggest that in certain individuals resting state DIT can be achieved following a single day's overfeeding. The data also suggest that dietary history may underpin DIT response ability. As only a positive trend was found between MR stimulated by ephedrine and overfeeding respectively, the relationship between these responses remains equivocal. The BAT hypothesis was challenged by a failure to observe skin temperature increase following both ephedrine administration and overfeeding, and the failure of propanolol to inhibit DIT. The results are interpreted as clarifying the occurrence of resting state DIT in respect to short term overfeeding, and calling into question speculation regarding BAT's role in thermogenesis.
title: Contemporary Posterity: A Helpful Oxymoron
Creators: name: Erslev, Malthe Stavning
Publisher: name: Electronic Book Review
Year: 2021

description: In his essay, Malthe Stavning Erslev approaches the notion of post-digital from the perspective of a broader cultural phenomenon of posterioriy, emphasizing the fact that the prefix post- still allows for discussion of multidirectional and complex changes that our world is currently undergoing. In order to better grasp all the complexities and interrogate somewhat linear periodization implied by the prefix, Erslev employs the oxymoronic concept of contemporary posterity. At the same time, he ties his theoretical proposition with the extensive analysis of an online community engaging in bot-mimicry.
An Analytical Model of Information Dissemination for a Gossip-based Protocol
Creators: name: Bakhshi, Rena
name: Gavidia, Daniela
name: Fokkink, Wan
name: van Steen, Maarten
Publisher: name: arXiv
Year: 2008
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Discrete Mathematics (cs.DM)
subject: Information Theory (cs.IT)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: We develop an analytical model of information dissemination for a gossiping protocol that combines both pull and push approaches. With this model we analyse how fast an item is replicated through a network, and how fast the item spreads in the network, and how fast the item covers the network. We also determine the optimal size of the exchange buffer, to obtain fast replication. Our results are confirmed by large-scale simulation experiments.
description: 20 pages, 8 figures, technical report
title: The Metainterface Spectacle
Creators: name: Andersen , Christian Ulrik
name: Pold, Søren Bro
Publisher: name: Electronic Book Review
Year: 2021

description: Building on their concept of metainterface, Søren Bro Pold and Christian Ulrik Andersen analyze the change in perception and experience that bring forth the always-on(line) mode of engaging with digital content. The notion of ‘spectacle’, in itself having a long history in critical theory, is employed here to discuss media politics and the struggle for power in terms of aesthetized computation, with their main driving forces being data analytics, surveillance and forensics. Pold and Andersen uncover how metainterface spectacle can also serve to empower political agency through reclaiming the apparatus.
Exact solution of Markovian master equations for quadratic fermi systems: thermal baths, open XY spin chains, and non-equilibrium phase transition
Creators: name: Prosen, Tomaz
name: Zunkovic, Bojan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We generalize the method of third quantization to a unified exact treatment of Redfield and Lindblad master equations for open quadratic systems of n fermions in terms of diagonalization of 4n x 4n matrix. Non-equilibrium thermal driving in terms of the Redfield equation is analyzed in detail. We explain how to compute all physically relevant quantities, such as non-equilibrium expectation values of local observables, various entropies or information measures, or time evolution and properties of relaxation. We also discuss how to exactly treat explicitly time dependent problems. The general formalism is then applied to study a thermally driven open XY spin 1/2 chain. We find that recently proposed non-equilibrium quantum phase transition in the open XY chain survives the thermal driving within the Redfield model. In particular, the phase of long-range magnetic correlations can be characterized by hypersensitivity of the non-equilibrium-steady state to external (bath or bulk) parameters. Studying the heat transport we find negative thermal conductance for sufficiently strong thermal driving, as well as non-monotonic dependence of the heat current on the strength of the bath coupling.
description: 24 pages, 12 figures, submitted to New Journal of Physics, Focus issue "Quantum Information and Many-Body Theory"
An Efficient Quantum Algorithm for some Instances of the Group Isomorphism Problem
Creators: name: Gall, François Le
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Data Structures and Algorithms (cs.DS)
subject: Group Theory (math.GR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In this paper we consider the problem of testing whether two finite groups are isomorphic. Whereas the case where both groups are abelian is well understood and can be solved efficiently, very little is known about the complexity of isomorphism testing for nonabelian groups. Le Gall has constructed an efficient classical algorithm for a class of groups corresponding to one of the most natural ways of constructing nonabelian groups from abelian groups: the groups that are extensions of an abelian group $A$ by a cyclic group $Z_m$ with the order of $A$ coprime with $m$. More precisely, the running time of that algorithm is almost linear in the order of the input groups. In this paper we present a quantum algorithm solving the same problem in time polynomial in the logarithm of the order of the input groups. This algorithm works in the black-box setting and is the first quantum algorithm solving instances of the nonabelian group isomorphism problem exponentially faster than the best known classical algorithms.
description: 20 pages; this is the full version of a paper that will appear in the Proceedings of the 27th International Symposium on Theoretical Aspects of Computer Science (STACS 2010)
On the nature of the AGILE galactic transient sources
Creators: name: Romero, Gustavo E.
name: Vila, Gabriela S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Italian gamma-ray satellite AGILE has recently reported the detection of some variable high-energy sources likely of galactic origin. These sources do not have any obvious counterpart at lower energies. We propose that these sources are produced in proton-dominated jets of galactic microquasars. We develop a model for microquasar jets that takes into account both primary leptons and protons and all relevant radiative processes, including secondary particle emission and gamma-ray attenuation due to pair creation in the jet. We obtain spectral energy distributions that correspond to what is observed by AGILE, with most of the power concentrated between 100 MeV and 10 GeV and reaching luminosities of $10^{34-35}$ erg s$^{-1}$. We make detailed spectral predictions that can be tested by the Fermi gamma-ray telescope in the immediate future. We conclude that hadronic jets in galactic accreting sources can be responsible for the variable unidentified gamma-ray sources detected by AGILE.
description: 4 pages, 2 figures. Accepted for publication in Astronomy & Astrophysics (Letters)
Development of a technique for fish feed digestibility estimations using microtracers
Creators: name: Kabir, N M Jahangir
Publisher: name: University Of Tasmania
Year: 2023

description: The aim of this thesis was to compare the methods of feed digestibility determination in fish and subsequently develop a technique for fish feed digestibility estimations using microtracer. The review of current methods showed that none of the existing methods fulfil adequately the criterion of an ideal method when employing external markers. Therefore microtracer F-Ni was used in this study and a series of experiments was conducted to evaluate the digestibility coefficients in fish ( rainbow trout, Oncorhynchus mykiss) using microtracer F-Ni as a marker and compare its suitability with the conventional Cr203 and acid insoluble ash (AIA) markers. The particle counts of microtracer F-Ni per unit weight were validated in Experiment 1, as it was essential to establish a consistent count of particles per unit weight for the calculation of digestibility values. Both direct counting and colour development methods were used for this purpose. Results showed that microtracer F-Ni marker contained on average 64 particle per mg. The sequential uniformity in the rate of passage of the microtracer through the digestive tract were tested in Experiment 2, using similar diets with four inclusion levels to select one level for further digestibility studies. One percent inclusion level was found to be the best as the rate of increase in concentration in different parts of the digestive tract and feces were sequential and progressive for all the three days tested. Apparent digestibility coefficients (ADC) of protein and dry matter were determined and compared employing different fecal collection procedure and different collection interval using this marker with chromic oxide marker and acid insoluble ash marker in Experiment 3. Results indicated that the ADC values generated by using microtracer F-Ni were consistent and in close agreement with the ADC values calculated by using chromic oxide as marker in all the situations. The ADC determined by using AIA were inconsistent and higher than the ADC calculated by both chromic oxide and microtracer F-Ni markers. When tnicrotracer F-Ni and chromic oxide were incorporated into the same diet, ADC values calculated were higher than values obtained with individual marker inclusion. In Experiment 4, protein and dry matter digestibility of fish meal and sunflower meal ingredients were determined and compared using microtracer F-Ni, Cr203 and AIA markers. Digestibility coefficients of nutrients generated using microtracer resulted ADC values similar (P> 0.05) to those using chromic oxide as external marker. Experimental diets containing either microtracer F-Ni or chromic oxide supported excellent growth performances and feed conversion efficiency. In summary, microtracer F-Ni incorporated at 1% can be used as an external marker in fish feed digestibility studies in rainbow trout.
Unesco VR
Creators: name: Di Gregorio, Giuseppe
name: Condorelli, Francesca
Publisher: name: INFN Open Access Repository
Year: 2021
Subjects: 3DLab-Sicilia
S. Bernardo

description: Presentazione fatta durante l'incontro del progetto 3DLab-Sicilia con gli Amministratori di alcuni dei Comuni attraversati dal cammino di S. Bernardo. L'agenda dell'incontro è disponibile in questa pagina.
Artificial magnetism and left handed media from dielectric rings and rods
Creators: name: Jelinek, L.
name: Marques, R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: It is shown that artificial magnetism with relatively large frequency bandwidth can be obtained from periodic arrangements of dielectric rings. Combined with dielectric rods, dielectric rings can provide 3D isotropic left-handed metamaterials being an advantageous alternative to metallic split ring resonators and/or metallic wires when un-detectability by low frequency external magnetic fields is desired. Furthermore it is shown that dielectric rings can be also combined with natural plasma-like media to obtain a left-handed metamaterial.
description: 4 pages, 8 figures
A case study of communicative competence
Creators: name: Hirouchi, H
Publisher: name: University Of Tasmania
Year: 2023

description: In 1990 the Japanese Education Department decided to revise its foreign language curriculum and to introduce a communicative competence component. This implied a re-examination of assessment of foreign language education in the four language skills speaking, listening, reading, and writing. This case study analyses ‚Äöthe concept of communicative competence and investigates how we can improve communicative competence in foreign language education. Fifty Japanese and Australian students at high schools learning each others' language were given questionnaires about their classes in foreign language. The emphasis in this study was on the student's own assessment (self assessment) of their communicative competence. Communicative competence may be defined as the ability to communicate using not only the correct grammar and vocabularly, but to use it in a socially appropriate (for that culture) manner. The results of the questionnaire and interviews conducted with teachers reveals interesting differences between the two student groups. Japanese students generally felt less confident in their own ability to clearly express ideas in English compared to the Australian students in a similar situation. The results are interpreted in terms of the different methods of teaching typically used in the two countries. In Japan, foreign language education is based on the formalist approach while in Australia the activist approach is favoured. These two differing approaches are a reflection in part of certain differences in culture and the ultimate goal in foreign language teaching. In Japan, foreign ‚Äölanguage teaching (predominantly English) is based on the goal of a student's achievement in a written examination for University examination. In Australia there is an emphasis on learning the language as well as aspects of the culture associated with it. As a result Australian students believe that the language is not only enjoyable but also is is helpful to their future career. This results in different motivations for the students. The two approaches to the teaching also result in differences in cognitive ability. The activist approach compared with the formalist approach requires continual participation by the student in the learning process to develop language skills through the active use of language and communicative competence abilities. Japanese students compared with Australian students have a poorer ability in communication, although their knowledge of vocabularly and grammar rules may be greater. They are unable to apply knowledge from one area of language education because their course is not suitable balanced with regard to effective communication. There are many social factors that impinge on successful foreign language learning. Many of these may be overcome if a balanced curricula is adopted. It is the suggestion of this thesis that in order to improve foreign language education in Japan the cultural differences between the cultures will need to be recognised and appropriate teaching methods adopted.
Family concordance in social engagement with faces and the mediating effect of mother-child interaction quality
Creators: name: Korja, Riikka
name: Karlsson, Hasse
name: Luotola, Aino
name: Nordenswan, Elisabeth
name: Holmberg, Eeva
name: Nolvi, Saara
name: Leppänen, Jukka
name: Yada, Akie
name: Lahtela, Hetti
name: Karlsson, Linnea
name: Kataja, Eeva-Leena
name: Häikiö, Tuomo
name: Eskola, Eeva
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Developmental Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Eye tracking study combined with observational parent-child interaction data examining the associations between both parents and child's attention to faces and the mediating role of mother-child interaction quality at 5 years of the child's age
Implementing Increased Transparency and Reproducibility in Economics
Creators: name: Vilhuber, Lars
Publisher: name: Zenodo
Year: 2020
Subjects: reproducibility
verification
economics

description: Replicability is at the core of the scientific enterprise. In the past 30 years, recurring concerns about the extent of replicability (or lack thereof) of the research in various disciplines have surfaced, including in economics. In this talk, I describe the context in which the current discussion in the social science is occurring, the motivation behind the recent focus on pre-publication reproducibility, and the lessons learned so far. I am the Data Editor responsible for pre-publication reproducibility for 8 journals, and will convey to participants practical recommendations for creating reproducible research. The solutions to these problems will change the way research will be taught and conducted, in economics in particular, and in the social sciences more broadly. The implications affect undergraduate and graduate teaching, research infrastructure, and habits. Presented online on 2020-06-27 at the Western Economic Association International's Virtual 95th Conference.
description: The opinions expressed in this talk are solely the authors, and do not represent the views of the U.S. Census Bureau, the American Economic Association, or any of the funding agencies.
Facilitators and barriers to health service access in migrants of Australia: protocol for an equity-focussed qualitative evidence synthesis
Creators: name: Samiksha Ingle
name: Soumyadeep Bhaumik
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: Australia
subject: access to health
subject: health service
subject: health system
subject: migrant

description: Objective :
To understand facilitators and barriers for access to health services in Australian migrants.
Fully compressive tides in galaxy mergers
Creators: name: Renaud, Florent
name: Boily, Christian
name: Naab, Thorsten
name: Theis, Christian
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The disruptive effect of galactic tides is a textbook example of gravitational dynamics. However, depending on the shape of the potential, tides can also become fully compressive. When that is the case, they might trigger or strengthen the formation of galactic substructures (star clusters, tidal dwarf galaxies), instead of destroying them. We perform N-body simulations of interacting galaxies to quantify this effect. We demonstrate that tidal compression occurs repeatedly during a galaxy merger, independently of the specific choice of parameterization. With a model tailored to the Antennae galaxies, we show that the distribution of compressive tides matches the locations and timescales of observed substructures. After extending our study to a broad range of parameters, we conclude that neither the importance of the compressive tides (~15% of the stellar mass) nor their duration (~ 10 Myr) are strongly affected by changes in the progenitors' configurations and orbits. Moreover, we show that individual clumps of matter can enter compressive regions several times in the course of a simulation. We speculate that this may spawn multiple star formation episodes in some star clusters, through e.g., enhanced gas retention.
description: 17 pages, 16 figures, accepted for publication in ApJ
Early migration of total knee replacements
Creators: name: Nolte, Peter A.
name: Puijk, Raymond
name: Rassir, Rachid
name: Pijls, Bart
name: Sierevelt, Inger N
Publisher: name: OSF Registries
Year: 2022
Subjects: subject: Orthopedics
subject: Medicine and Health Sciences
subject: Medical Specialties

description: This systematic review and meta-analysis aim to update the review of Pijls et al. (2018), which evaluated the early and long-term migration patterns of tibial components of TKR with all RSA studies that are published over time.
Idealized world of Malory's "Morte Darthur" : a study of the elements of myth, allegory, and symbolism in the secular and religious milieux of Arthurian Romance
Creators: name: Whitaker, Muriel A. I.
Publisher: name: University of British Columbia
Year: 2011

description: Towards the end of the Middle Ages, Sir Thomas Malory synthesized the diverse elements of British chronicle history, Celtic myth, French courtoisie, and Catholic theology which over a period of six hundred years or more had gathered about the legendary figure of King Arthur. Furthermore, Malory presented in definitive form the kind of idealized milieu that later writers in English came to regard as romantic. Malory's Morte Darthur presents dramatically the activities of a mythic aristocratic society living in a golden age. It preserves the "history" of a British king who defeats the Emperor of Rome and establishes an empire stretching from Ireland and Scandinavia to the Eastern Mediterranean. It portrays the adventures of heroic knights whose prowess is inspired by idealized ladies and whose achievements are helped or hindered by such supernatural agents as fays, magicians, giants, dwarfs, angels and devils. The actions of the knights conform to a ritualistic pattern of quest and combat determined by stereotyped chivalric conventions and performed in a symbol-studded environment. Colours, numbers, costumes, metals, arms, armour, and horses have symbolic significances which may be hierarchic, emotive or moral. Castles and perilous forests represent the antithetical values of security and danger, peace and combat, civilization and primitivism, love and hate. In this antipodal environment occur encounters which often adumbrate a struggle between forces of good and forces of evil. In the religious milieu of the Grail quest, elements of the secular milieu are adopted for the purpose of expressing truths of Catholic faith and morality. The Grail Knight's search for Corbenic is an allegory of the soul's search for God. Arms and armour, dress and colours, animals and plants have symbolic significances drawn from Biblical exegesis and Christian art. The unifying element in the historical, romantic and religious milieux is the quest motif; it is the means by which the ideals of the Malorian world are revealed. The historical quest for the crown of Rome shows Malory's view of sovereignty and the ideal of the good king. The romantic quest for fame and fair ladies shows his view of chivalry and the ideal of the good knight. The spiritual quest for the Holy Grail shows his view of religion and the ideal of the good Christian. It is a measure of Malory's art that the wishfulfilling dream world of romance projects an illusion of reality.
A new coumarin from Juglans mandshurica Maxim induce apoptosis in hepatocarcinoma cells
Creators: name: Lou, Li-Li
name: Zhao, Peng
name: Cheng, Zhuo-Yang
name: Guo, Rui
name: Yao, Guo-Dong
name: Wang, Xiao-Bo
name: Huang, Xiao-Xiao
name: Song, Shao-Jiang
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Hematology

description: In this study, a new coumarin, juglansoside C (1) was isolated from the bark of Juglans mandshurica. Its chemical structure was identified by comprehensive spectroscopic analyses. The in vitro cytotoxicity assay showed that 1 exhibited moderate cytotoxicity against human hepatocellular carcinoma Hep3B cells with an IC50 value of 70.9 μM. Furthermore, Annexin V-FITC/PI staining assay indicated that 1 markedly induced apoptosis in Hep3B cells.
Implementing Increased Transparency and Reproducibility in Economics: Lessons Learned
Creators: name: Vilhuber, Lars
Publisher: name: Zenodo
Year: 2020
Subjects: reproducibility
verification
economics

description: Replicability is at the core of the scientific enterprise. In the past 30 years, recurring concerns about the extent of replicability (or lack thereof) of the research in various disciplines have surfaced, including in economics. I am the Data Editor responsible for pre-publication reproducibility for 8 journals, and will convey to participants practical recommendations for creating reproducible research, as a researcher, as a journal editor, and from an institutional perspective. The solutions to these problems will change the way research will be taught and conducted, in economics in particular, and in the social sciences more broadly. The implications affect undergraduate and graduate teaching, research infrastructure, and habits.
description: The opinions expressed in this talk are solely the authors, and do not represent the views of the U.S. Census Bureau, the American Economic Association, or any of the funding agencies.
Zero Sound in Neutron Stars with Dense Quark Matter under Strong Magnetic Fields
Creators: name: Kouvaris, Chris
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study a neutron star with a quark matter core under extremely strong magnetic fields. We investigate the possibility of an Urca process as a mechanism for the cooling of such a star. We found that apart from very particular cases, the Urca process cannot occur. We also study the stability of zero sound modes under the same conditions. We derive limits for the coupling constant of an effective theory, in order the zero sound to be undamped. We show that zero sound modes can help kinematically to facilitate a cooling process.
Low temperature magnetic structure of the quasi 1-dimensional magnet Ni2SiO4
Creators: name: Colman, R H
name: Fennell, T
name: Ritter, C
name: Lau, G
name: Cava, R J
name: Wills, A S
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Ni2SiO4, Liebenbergite, is an example of a quasi-one-dimensional magnet made up of frustrated corner sharing triangles of Ni2+ (S = 1) ions that propagate parallel to the b axis. Ni2SiO4 is isostructural with olivine, a common mineral of varying composition Fe2-xMgxSiO4, and is described in the orthorhombic space group Pnma. A synthetic polycrystalline sample of Ni2SiO4 was studied using constant wavelength powder neutron diffraction. Diffraction spectra were collected above and below the antiferromagnetic ordering transition (TN ~ 34 K) and were used to refine the atomic and magnetic structures of Ni2SiO4. Corepresentational theory was used to determine the symmetry-allowed magnetic structures after the Neel transition and the refned magnetic structure evidences both ferromagnetic and antiferromagnetic inter-chain interactions, and ferromagnetic intra-chain coupling. The competition between the magnetic interactions can be seen in the canting of the moments away from a collinear arrangement.
description: 4 pages, 2 figures, 1 table, conference proceeding
Household behaviour change interventions for sanitation and hygiene in urban settings: a scoping review
Creators: name: MacLeod, Clara
name: Cumming, Oliver
name: Davies, Katherine
name: Jenala Chipungu
name: Mwamba Mwenge
name: Dreibelbis, Robert
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Public Health
subject: Medicine and Health Sciences
subject: WASH
subject: behaviour change
subject: hygiene
subject: sanitation
subject: urban

description: A scoping review protocol
Superconductivity in Ti-doped Iron-Arsenide Compound Sr4Cr0.8Ti1.2O6Fe2As2
Creators: name: Zhu, Xiyu
name: Han, Fei
name: Mu, Gang
name: Cheng, Peng
name: Shen, Bing
name: Zeng, Bin
name: Wen, Hai-Hu
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Superconductivity was achieved in Ti-doped iron-arsenide compound Sr4Cr0.8Ti1.2O6Fe2As2 (abbreviated as Cr-FeAs-42622). The x-ray diffraction measurement shows that this material has a layered structure with the space group of \emph{P4/nmm}, and with the lattice constants a = b = 3.9003 A and c = 15.8376 A. Clear diamagnetic signals in ac susceptibility data and zero-resistance in resistivity data were detected at about 6 K, confirming the occurrence of bulk superconductivity. Meanwhile we observed a superconducting transition in the resistive data with the onset transition temperature at 29.2 K, which may be induced by the nonuniform distribution of the Cr/Ti content in the FeAs-42622 phase, or due to some other minority phase.
description: 3 pages, 3 figures
PKD2/polycystin-2 induces autophagy by forming a complex with BECN1
Creators: name: Peña-Oyarzun, Daniel
name: Rodriguez-Peña, Marcelo
name: Burgos-Bravo, Francesca
name: Vergara, Angelo
name: Kretschmar, Catalina
name: Sotomayor-Flores, Cristian
name: Ramirez-Sarmiento, Cesar A.
name: de Smedt, Humbert
name: Reyes, Montserrat
name: Perez, William
name: Torres, Vicente A.
name: Morselli, Eugenia
name: Altamirano, Francisco
name: Wilson, Christian A.M.
name: Hill, Joseph A.
name: Lavandero, Sergio
name: Criollo, Alfredo
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Macroautophagy/autophagy is an intracellular process involved in the breakdown of macromolecules and organelles. Recent studies have shown that PKD2/PC2/TRPP2 (polycystin 2, transient receptor potential cation channel), a non-selective cation channel permeable to Ca2+ that belongs to the family of transient receptor potential channels, is required for autophagy in multiple cell types by a mechanism that remains unclear. Here, we report that PKD2 forms a protein complex with BECN1 (beclin 1), a key protein required for the formation of autophagic vacuoles, by acting as a scaffold that interacts with several co-modulators via its coiled-coil domain (CCD). Our data identified a physical and functional interaction between PKD2 and BECN1, which depends on one out of two CCD domains (CC1), located in the carboxy-terminal tail of PKD2. In addition, depletion of intracellular Ca2+ with BAPTA-AM not only blunted starvation-induced autophagy but also disrupted the PKD2-BECN1 complex. Consistently, PKD2 overexpression triggered autophagy by increasing its interaction with BECN1, while overexpression of PKD2D509V, a Ca2+ channel activity-deficient mutant, did not induce autophagy and manifested diminished interaction with BECN1. Our findings show that the PKD2-BECN1 complex is required for the induction of autophagy, and its formation depends on the presence of the CC1 domain of PKD2 and on intracellular Ca2+ mobilization by PKD2. These results provide new insights regarding the molecular mechanisms by which PKD2 controls autophagy.
Hydrogen adsorption on hexagonal silicon nanotubes
Creators: name: Ryou, Junga
name: Hong, Suklyun
name: Kim, Gunn
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a first-principles study of geometrical structure and energetics of hydrogen adsorbed on hexagonal single-walled silicon nanotubes (SiNTs). The adsorption behaviors of hydrogen molecules in SiNTs are investigated. The binding energies for the most stable physisorbed configurations are calculated to be less than 0.1 eV. The energy barriers are also investigated for dissociation of H2 molecules. Finally, we consider encapsulation of H2 molecules in SiNTs. The possibility of SiNTs as hydrogen storage materials is discussed.
Fault prediction in aircraft engines using Self-Organizing Maps
Creators: name: Cottrell, Marie
name: Gaubert, Patrice
name: Eloy, Cédric
name: François, Damien
name: Hallaux, Geoffroy
name: Lacaille, Jérôme
name: Verleysen, Michel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Aircraft engines are designed to be used during several tens of years. Their maintenance is a challenging and costly task, for obvious security reasons. The goal is to ensure a proper operation of the engines, in all conditions, with a zero probability of failure, while taking into account aging. The fact that the same engine is sometimes used on several aircrafts has to be taken into account too. The maintenance can be improved if an efficient procedure for the prediction of failures is implemented. The primary source of information on the health of the engines comes from measurement during flights. Several variables such as the core speed, the oil pressure and quantity, the fan speed, etc. are measured, together with environmental variables such as the outside temperature, altitude, aircraft speed, etc. In this paper, we describe the design of a procedure aiming at visualizing successive data measured on aircraft engines. The data are multi-dimensional measurements on the engines, which are projected on a self-organizing map in order to allow us to follow the trajectories of these data over time. The trajectories consist in a succession of points on the map, each of them corresponding to the two-dimensional projection of the multi-dimensional vector of engine measurements. Analyzing the trajectories aims at visualizing any deviation from a normal behavior, making it possible to anticipate an operation failure.
description: Communication pr\'esent\'ee au 7th International Workshop WSOM 09, St Augustine, Floride, USA, June 2009
Supporting those who care for the aged : an investigation of abuse of the aged and the relationship between carer strain and social support networks
Creators: name: Hensley, DJ
Publisher: name: University Of Tasmania
Year: 2023

description: Abuse of elderly people has been widely researched over the last 20 years. A review of recent literature reveals a wide range of precursors to abuse of the elderly and an equally wide range of proposed interventions: There is wide reference in the literature however, to carer strain or the burden of care experienced by primary carers, with an emphasis on the detection and treatment of the abuser rather than on sociological factors which could lead to the alleviation of abuse or its prevention. This study investigated the place of formal and informal social support networks in relation to the level of strain perceived by primary carers of elderly persons. A sample of SO primary carers were asked to complete a questionnaire about the level of strain they experienced as carers and their use of and satisfaction with formal and informal support networks. The results revealed-a high level of satisfaction with formal services whatever the level of perceived strain reported.. A trend towards a higher level of perceived strain where the size and level of satisfaction with informal supports was lower was also shown. Implications include further examination of . individual formal services and the development of strategies to enhance informal networks.