cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hubble Space Telescope imaging of the progenitor sites of six nearby core-collapse supernovae
Creators: name: Maund, Justyn R.
name: Smartt, Stephen J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The search for the progenitors of six core-collapse supernovae (CCSNe) in archival HST WFPC2 pre-explosion imaging is presented here. These SNe are 1999an, 1999br, 1999ev, 2000ds, 2000ew and 2001B. Post-explosion imaging of the SNe, with the HST ACS/WFC, has been utilised with the technique of differential astrometry to identify the progenitor locations on the pre-explosion imaging. SNe 1999br, 1999ev, 2000ew and 2001B are recovered in late time imaging and an estimate of the progenitor location on the pre-explosion imaging, with sub-pixel accuracy, has been made. Only the progenitor of the type II-P SN 1999ev has been recovered, on pre-explosion F555W imaging, at a $4.8σ$ significance level. Assuming a red supergiant progenitor, the pre-explosion observation is consistent with $M_{ZAMS}=15-18M_{\odot}$. The progenitors of the other five SNe were below the $3σ$ detection threshold of the pre-explosion observations. The detection thresholds were translated to mass limits for the progenitors by comparison with stellar evolution models. Pre-explosion observations of the peculiarly faint SN 1999br limit the mass of a red supergiant progenitor to $M_{ZAMS} < 12M_{\odot}$. Analysis has been extended, from previous studies, to include possible detections of high-$\mathrm{T_{eff}}$, high-mass stars by conducting synthetic photometry of model Wolf-Rayet star spectra. The mass limits for the type II-P SNe 1999an and 1999br are consistent with the previously determined mass limits for this type of SN. The detection limits for the progenitors of the type Ibc SNe (2000ds, 2000ew and 2001B) do not permit differentiation between high-mass WR progenitors or low mass progenitors in binaries.
description: Submitted to MNRAS; 22 figures, 6 low res jpeg; all figures available at http://www.ast.cam.ac.uk/~jrm/papers
The Case of Significant Variations in Gold-Green and Black Open Access: Evidence from Indian Research Output
Creators: name: Singh, Vivek Kumar
name: Piryani, Rajesh
name: Srichandan, Satya Swarup
Publisher: name: arXiv
Year: 2020
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: Open Access has emerged as an important movement worldwide during the last decade. There are several initiatives now that persuade researchers to publish in open access journals and to archive their pre- or post-print versions of papers in repositories. Institutions and funding agencies are also promoting ways to make research outputs available as open access. This paper looks at open access levels and patterns in research output from India by computationally analyzing research publication data obtained from Web of Science for India for the last five years (2014-2018). The corresponding data from other connected platforms -- Unpaywall and Sci-Hub -- are also obtained and analyzed. The results obtained show that about 24% of research output from India, during last five years, is available in legal forms of open access as compared to world average of about 30%. More articles are available in gold open access as compared to green and bronze. On the contrary, more than 90% of the research output from India is available for free download in Sci-Hub. We also found disciplinary differentiation in open access, but surprisingly these patterns are different for gold-green and black open access forms. Sci-Hub appears to be complementing the legal gold-green open access for less covered disciplines in them. The central institutional repositories in India are found to have low volume of research papers deposited.
Additional file 1 of Research utilisation in clinical practice: the experience of nurses and midwives working in public hospitals
Creators: name: Asrat Hailu Dagne
name: H. /Mariam Demewozu Tebeje
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Marine Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: Hematology
subject: 60506 Virology

description: Additional file 1. Interviews.
Design and robust control of micro-actuators for positioning systems
Creators: name: Zarrabi Ekbatani, Romina
Publisher: name: Swinburne
Year: 2024

description: The design and control of micro-actuators are crucial for applications in robotics, aerospace, and healthcare. This research focuses on positioning systems using piezoelectric and Ionic Polymer Metal Composite (IPMC) actuators. It begins with a detailed review of these actuators, covering their principles, fabrication, and performance. A piezoelectric-driven system is designed for precise, fast movement, followed by a dual-stage system for greater accuracy and displacement. Advanced control methods, including reinforcement learning and sliding mode control, are applied to improve accuracy and robustness. These systems show significant potential for enhancing precision in challenging environments like underwater settings, surgical tools and high-precision manufacturing.
The Project as a Social System: Asia-Pacific Perspectives on Project Management
Creators: name: Linger, Henry
name: Owen, Jill
Publisher: name: Monash University
Year: 2020
Subjects: subject: 80707 Organisation of Information and Knowledge Resources
subject: FOS: Media and communications
subject: 160512 Social Policy
subject: FOS: Political science
subject: 80608 Information Systems Development Methodologies
subject: FOS: Computer and information sciences
subject: 120507 Urban Analysis and Development
subject: FOS: Social and economic geography

description: In recent years research initiatives in the field of project management have accelerated and are now pursued across many disciplinary fields and a vast range of project types, ranging from construction to organisational change and new product development. This diversity of research into phenomena within the ‘project’ context suggests the dynamism of and progress within this field of study, and its potential to contribute to scholarly knowledge within a range of disciplinary areas outside of project management itself, including organisational studies, knowledge management and organisational learning. The papers presented in this book reflect the richness of this developing intellectual area in highlighting how projects interrelate with their social and contextual environments.
Strong lensing, cosmology and lensing halos
Creators: name: Mortsell, Edvard
name: Sunesson, Christoffer
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: With future wide and deep cosmological sky surveys, a large number of gravitationally lensed, multiply imaged systems will be found. In addition to multiply imaged galaxies and quasars, sources will include transient events like supernovae and gamma ray bursts in which case very accurate time delay measurements are possible. Also, large numbers of systems with several lensed sources behind a single lens will be observed. In this paper, we review and compare different possibilities of using future strong lensing data to probe lens matter distributions and to determine the Hubble parameter and the matter density of the universe. Specifically, we investigate the possibility to break the well-known degeneracy between dark matter halo profiles and the Hubble parameter using observed flux ratios. We also investigate how strong lensing can provide useful constraints on the matter density of the universe independently of the flux ratios and other cosmological probes.
description: 15 pages, 4 figures, matches JCAP version
The Market In Babies: Stories of Australian Adoption
Creators: name: Quartly, Marian
name: Shurlee Swain
name: Cuthbert, Denise
Publisher: name: Monash University
Year: 2020
Subjects: subject: 200299 Cultural Studies not elsewhere classified
subject: FOS: Other humanities
subject: 160301 Family and Household Studies
subject: FOS: Sociology
subject: 210301 Aboriginal and Torres Strait Islander History
subject: FOS: History and archaeology
subject: 210399 Historical Studies not elsewhere classified

description: The Market in Babies: Stories of Australian Adoption tells the history of adoption in Australia from its beginnings in the nineteenth century to its decline at the beginning of the twentyfirst. The authors find that a market in babies has long existed. In the early years supply outstripped demand: needy babies were hard to place. Midtwentieth century supply and demand grew together, with adoption presented as the perfect solution to two social problems: infertility and illegitimacy. Supply declined in the 1970s and demand turned to new global markets. Now these markets are closing, but technology provides new opportunities and Australians are acquiring babies through the surrogacy markets of India and the United States. As the rate of adoptions in Australia falls to an historic low, and parliaments across the country are apologising to parents and adoptees for the pain caused by past practices, this book identifies an historical continuum between the past and the present, and challenges the view that the best interests of the child can ever be protected in an environment where the market in babies is allowed to flourish. The authors of The Market in Babies are longestablished scholars expert in the history of the family, welfare history and the making of public policy in Australia.
Additional file 1 of Organic colorants based on lac dye and brazilwood as markers for a chronology and geography of medieval scriptoria: a chemometrics approach
Creators: name: Nabais, Paula
name: Melo, Maria J.
name: Lopes, João A.
name: Vieira, Márcia
name: Castro, Rita
name: Romani, Aldo
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Plant Biology

description: Additional file 1: Figure S1. Typologies of the manuscripts found in Portuguese collections. Table S1–S5. Microspectrofluorimetry and infrared data of samples from lac dye in medieval manuscript illuminations (12th–13th c.). Table S6. Microspectrofluorimetry and infrared data of lac dye reconstructions. Table S7. Infrared spectra. Table S8. Percentage of calcium carbonate. Table S9–S12. Microspectrofluorimetry and infrared data of samples from brazilwood in medieval manuscript illuminations (end of 13th–15th c.). Table S13. Microspectrofluorimetry and infrared data of brazilwood reconstructions. Figure S2. Scatter plot representing the first three scores from the PCA model used to produce the dendrogram for lac dye (Lac) and brazilwood (BW) based paints. Link to video in: https://www.dropbox.com/s/4vfyc63cjsvn7j1/Heritage Sci Nabais P_ Scatter plot.mp4?dl=0 .
83. The Andromeda photometric survey
Creators: name: Perryman, Michael
Publisher: name: Zenodo
Year: 2022

description: The Gaia Andromeda Photometry Survey contains 3-colour epoch photometry for a million stars in the region of the Andromeda Galaxy. It was selected, as representative of the sky scanning and range of stellar densities, to provide a test region in advance of the full-sky epoch photometry planned for DR4.
An integrated chain risk analysis of genetic modification in livestock production chains
Creators: name: Novoselova, Tatiana A.
name: Meuwissen, Miranda P.M.
name: Huirne, Ruud B.M.
name: Novoselova, Tatiana A.
name: Meuwissen, Miranda P.M.
name: Huirne, Ruud B.M.
Publisher: name: Unknown
Year: 2006
Subjects: Consumer/Household Economics

description: This article presents an integrated consumer acceptance and supply chain risk analysis of genetic modification in livestock production chains. In general, results provide insight into feasibility of certain GM applications to be incorporated into pork chain. Overall, livestock producers can expect a cost reduction. Moreover, with the heterogeneous nature of consumer preferences there are some segments that wholly respond on the integration of different GM applications in the chain. However, in some cases, it is difficult to say whether the chain can respond to consumers' requirements.
[Brev til DKNVS]
Creators: name: Müller, Carl
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1857

description: VS kan får benytte et rom i Katedralskolen
description: Vedlegg. Polydoc nr. 1: 4078. Polydoc nr. 2: 3173.
Beckmann, Joachim, Quellen zur Geschichte des christlichen Gottesdienstes
Creators: name: Schmidt-Clausen, Kurt
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 5 Nr. 3 (1956): Ökumenische Rundschau, Band 5, Heft 3
Multi-Thread Hydrodynamic Modeling of a Solar Flare
Creators: name: Warren, Harry P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Past hydrodynamic simulations have been able to reproduce the high temperatures and densities characteristic of solar flares. These simulations, however, have not been able to account for the slow decay of the observed flare emission or the absence of blueshifts in high spectral resolution line profiles. Recent work has suggested that modeling a flare as an sequence of independently heated threads instead of as a single loop may resolve the discrepancies between the simulations and observations. In this paper we present a method for computing multi-thread, time-dependent hydrodynamic simulations of solar flares and apply it to observations of the Masuda flare of 1992 January 13. We show that it is possible to reproduce the temporal evolution of high temperature thermal flare plasma observed with the instruments on the \textit{GOES} and \textit{Yohkoh} satellites. The results from these simulations suggest that the heating time-scale for a individual thread is on the order of 200 s. Significantly shorter heating time scales (20 s) lead to very high temperatures and are inconsistent with the emission observed by \textit{Yohkoh}.
description: Submitted to ApJ
Athleticism and its transfer to Canada
Creators: name: Armstrong, Peter Evans
Publisher: name: University of British Columbia
Year: 2009

description: This thesis examines the origins of athleticism in England and its transfer to Canada. During the course of the nineteenth century, the focus of the English public schools changed dramatically. At the start of the century an English upper-class student's leisure time was largely employed in roaming the country-side, trespassing on neighboring estates and poaching. Teachers' responsibilities ended at the classroom door. Seventy-five years later an English public school student's life was focussed on games and team sports including cricket and the various types of football. Teachers now ran all aspects of school life which was designed to instill the manly, Christian, virtues which would enable graduates to take their proper place as leaders in the British Empire. And team sports were a vehicle to achieve that end. Team sports such as cricket and rugby, and the various institutions that promoted them, occupied a central place in upper-class English life and became infused with what Professor Mangan refers to as the 'games ethic': the ideology of athleticism. When the British administrators, soldiers, and immigrants came to Canada they brought with them their love of games and this 'games ethic' that was modified by Canadian experience. In England the 'ethic' was firmly entrenched and supported by a unique class and social structure. Because that structure did not exist in Canada, the attempts of early British Canadians to instill the 'ethic' in the new country were problematic and played out in the conflict between amateurs and professionals. Although an emerging working-class culture and an increasingly commercialized society challenged and eventually made the distinction between amateur and professional athletes irrelevant, belief in the 'games ethic' and in the instrumental value of team sports survived and continues to influence Canadian sport policy today.
Cross-racial Envy and Underinvestment in South Africa
Creators: name: Haile, Daniel
name: Sadrieh, Karim
name: Verbon, Harrie
name: Haile, Daniel
name: Sadrieh, Karim
name: Verbon, Harrie
Publisher: name: Unknown
Year: 2006
Subjects: Institutional and Behavioral Economics

description: Trust games are employed to investigate the effect of heterogeneity in income and race on cooperation in South Africa. The amount of socio-economic information available to the subjects about their counterparts is varied. No significant behavioural differences are observed, when no such information is provided. However, when the information is available, it significantly affects individual trust behaviour. The low income subjects from both racial groups invest significantly less in partnerships with the high income subjects of the other racial group than in any other partnership. We attribute this behaviour to cross-racial envy, which on aggregate may lead to substantial underinvestment in the economy.
Search for Sub-eV Sterile Neutrino at RENO
Creators: name: The RENO Collaboration
name: Choi, J. H.
name: Jang, H. I.
name: Jang, J. S.
name: Jeon, S. H.
name: Joo, K. K.
name: Ju, K.
name: Jung, D. E.
name: Kim, J. G.
name: Kim, J. H.
name: Kim, J. Y.
name: Kim, S. B.
name: Kim, S. Y.
name: Kim, W.
name: Kwon, E.
name: Lee, D. H.
name: Lee, H. G.
name: Lim, I. T.
name: Moon, D. H.
name: Pac, M. Y.
name: Seo, H.
name: Seo, J. W.
name: Shin, C. D.
name: Yang, B. S.
name: Yoo, J.
name: Yoon, S. G.
name: Yeo, I. S.
name: Yu, I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report a search result for a light sterile neutrino oscillation with roughly 2200 live days of data in the RENO experiment. The search is performed by electron antineutrino ($\overlineν_e$) disappearance taking place between six 2.8 GW$_{\text{th}}$ reactors and two identical detectors located at 294 m (near) and 1383 m (far) from the center of reactor array. A spectral comparison between near and far detectors can explore reactor $\overlineν_e$ oscillations to a light sterile neutrino. An observed spectral difference is found to be consistent with that of the three-flavor oscillation model. This yields limits on $\sin^{2} 2θ_{14}$ in the $10^{-4} \lesssim |Δm_{41}^2| \lesssim 0.5$ eV$^2$ region, free from reactor $\overlineν_e$ flux and spectrum uncertainties. The RENO result provides the most stringent limits on sterile neutrino mixing at $|Δm^2_{41}| \lesssim 0.002$ eV$^2$ using the $\overlineν_e$ disappearance channel.
Nurse-led interprofessional pressure injury prevention in pediatric cardiac critical care
Creators: name: McGill, Sandra
Publisher: name: No Publisher Supplied
Year: 2021

description: Purpose of Project: The purpose of this project was to evaluate an interprofessional pediatric pressure injury prevention initiative to determine its effect on hospital-acquired pressure injury incidence in the pediatric cardiac intensive care population.Methodology: The pre-post quality improvement evaluation consisted of a retrospective review of compliance data and hospital-acquired pressure injury incidence data from the Pediatric Cardiac Intensive Care Unit. Healthcare workers with a role in pressure injury prevention in the Pediatric Cardiac Intensive Care Unit were invited to participate in a survey to assess their attitudes towards the preventative strategies implemented.Results: Results demonstrated a statistical significance in improvement with compliance (p < .05), a substantial decrease (71%) in hospital-acquired pressure injury incidence rates, an 80% decrease in severity, and a 60% decrease in medical device-related pressure injuries. There was an 80% response rate for the survey, which yielded insightful suggestions from the interprofessional respondents.Implications for Practice: Hospital-acquired conditions are a nursing quality indicator that requires a plan of action to be addressed. Nurses can make an impact in improving patient outcomes and have a key role in leading quality improvement initiatives, such as reducing pressure injuries in critically ill children. Strategies that include interprofessional support for comprehensive pediatric pressure injury prevention guidelines may mitigate financial and clinical risks. This study's findings can influence the development of evidence-based guidelines that can be disseminated to the larger pediatric critical care community.
The dark matter content of early-type barred galaxies
Creators: name: Corsini, E. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The dynamics of a barred galaxy depends on the pattern speed of its bar. The only direct method for measuring the pattern speed of a bar is the Tremaine-Weinberg technique. This method relies on the analysis of the distribution and dynamics of the stellar component. It is best suited to gas-poor galaxies and therefore it has been restricted to early-type barred galaxies. On the other hand, a variety of indirect methods, which are based on the analysis of the distribution and dynamics of the gaseous component, has been used to measure the bar pattern speed in late-type barred galaxies. The complete sample of galaxies for which the bar pattern speed has been directly measured with the Tremaine-Weinberg method is given. Nearly all the measured bars are as rapidly rotating as they can be. By comparing this result with recent high-resolution N-body simulations of bars in cosmologically-motivated dark matter halos, it is possible to conclude that these bars are not located inside centrally-concentrated halos.
description: 5 pages. Proceedings of "Baryons in Dark Matter Halos". Novigrad, Croatia, 5-9 Oct 2004. Editors: R. Dettmar, U. Klein, P. Salucci. Published by SISSA
84. Gaia's microlensing events
Creators: name: Perryman, Michael
Publisher: name: Zenodo
Year: 2022

description: Photometric microlensing has been responsible for the many thousands of events that have been discovered to date, including more than 350 exoplanets. Gaia is opening a new chapter in these studies, with its all-sky coverage, and its 3-colour sampling. Data Release 3 has identified 363 such events, 90 of them new.
The Companion to Philosophy in Australia and New Zealand (Second Edition)
Creators: name: Oppy, Graham
name: N.N. Trakakis
Publisher: name: Monash University
Year: 2020
Subjects: subject: 220210 History of Philosophy
subject: FOS: Philosophy, ethics and religion
subject: 220304 Epistemology
subject: Philosophy
subject: 220312 Philosophy of Cognition
subject: 220299 History and Philosophy of Specific Fields not elsewhere classified
subject: 220314 Philosophy of Mind (excl. Cognition)

description: Philosophy in Australia and New Zealand has for some time now been experiencing something of a ‘golden age’. The richness of Australasia’s philosophical past, though less well known, should also not be forgotten. Australasian philosophy, although heavily indebted to overseas trends, includes much distinctive and highly original work. The Companion contains a wide range of articles contributed by prominent philosophers and scholars, and includes biographical essays on selected philosophers, topics and controversies, as well as shorter entries on associations, research centres, departments, journals, pedagogy, and international links. Important philosophical contributions made by those working outside of the academy are also included, along with philosophy’s recent inroads into the wider community—in primary and secondary schools, community-based forums and ‘philosophy cafés’. A Companion to Philosophy in Australia and New Zealand will provide scholars and the wider community, in Australia, New Zealand and beyond, with a greater appreciation of the philosophical heritage of this region, and will be a standard work of reference for many years to come.
Still Learning: A 50 Year History of Monash University Peninsula Campus
Creators: name: Woodhouse, Fay
Publisher: name: Monash University
Year: 2020
Subjects: subject: 220202 History and Philosophy of Education
subject: FOS: Philosophy, ethics and religion

description: Still Learning: A 50 Year History of Monash University Peninsula Campus is an institutional history that brings the lives of students and staff – academic and extracurricular– into focus, and conveys the excitement and atmosphere of the times. Several of Australia’s most famous artists, teachers, writers, politicians and entertainers studied at Peninsula Campus, and Still Learning connects significant moments in Australia’s history to their time on campus. Well known children’s writer Paul Jennings, artist and sculptor Peter Corlett and the incorrigible Max Gillies were all students at the institution. As editor of the student magazine Struan,Gillies made a name for himself in 1962 over the issue of censorship, at a time when censorship laws greatly impacted on the value of student reading materials. In the 1960s and 1970s a ‘Miss Frankston’ competition, which would not be countenanced today, was a popular event. Students writing in Struan enjoyed a staple diet of sport, social activities, rock music, sexual relationships, and interstate and overseas trips. They nonetheless complained of lack of funds for food! The 1970s were turbulent times in Australia, and the issues of the day played out in the lives of students and staff on the campus. Still Learning highlights the Portsea Annexe and the significant part it played as an external venue for teachers developing their classroom experience. In its in carnations as Frankston Teachers’ College and the State College of Victoria at Frankston, the institution thrived. However, as the Chisholm Institute of Technology at Frankston it faced many challenges and entered into a period of relative decline.The timely merger with Monash University in 1990 slowly improved the campus’s fortunes. Today, Monash University Peninsula Campus is a significant part of the southern hemisphere’s largest university, with a vibrant campus and a key focusas a health precinct.
Input Subsidy Programs and Commercial Market Development: Modeling Fertilizer Use Decisions in a Two-Channel Marketing System
Creators: name: Xu, Zhiying
name: Jayne, Thomas S.
name: Govereh, Jones
name: Xu, Zhiying
name: Jayne, Thomas S.
name: Govereh, Jones
Publisher: name: Unknown
Year: 2006
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: crowding out effect
subject: input marketing channels
subject: fertilizer
subject: sub-Saharan Africa
subject: survey data

description: Many governments in developing countries distribute fertilizer at subsidized prices to stimulate fertilizer use and agricultural productivity. However, the extent to which government fertilizer subsidy programs affect private suppliers' sales of fertilizer is largely unknown and subject to considerable debate. This paper models farmer input use decisions in a two-channel marketing system and develops an econometric method to measure the potential "crowding out" effect of government subsidy programs. Using nationally representative household panel survey data in Zambia, we estimate how household fertilizer acquisition from commercial dealers and government programs are influenced by household socioeconomic, demographic, and market variables, and agro-ecological factors. Results indicate that the crowding out effect is sensitive to where governments choose to operate subsidy programs. The quantity of fertilizer procured from private sector may fall substantially if government chooses to distribute fertilizer in areas where fertilizer use is likely to be profitable and where private retail networks are already operating. On the other hand, the crowding out effect is negligible if government subsidy programs operate in areas where private fertilizer sales are low; in such areas, government programs may possibly enhance commercial demand over the long run.
description: Replaced with revised version of paper 07/18/06.
Search for the Radiative Decay B --> phi gamma
Creators: name: Aubert, B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We perform a search for the exclusive radiative decay B0 --> phi gamma, which is dominated by b d annihilation, in a sample of 124 million BB events collected with the BABAR detector at the PEP-II asymmetric-energy e+e- storage ring at SLAC. No significant signal is seen. We set an upper limit on the branching fraction BR(B0 --> phi gamma < 8.5x10-7) at the 90% confidence level.
description: 8 pages, 4 postscript figures
Productivity Before and After Exports: The Case of Korean Food Processing Firms
Creators: name: Gopinath, Munisamy
name: Kim, Hanho
name: Kim, Sooil
name: Gopinath, Munisamy
name: Kim, Hanho
name: Kim, Sooil
Publisher: name: Unknown
Year: 2006
Subjects: Agribusiness

description: In this article, we analyze the export decision of Korean manufacturing firms with emphasis on those in the food processing sector. A dynamic discrete choice model based on sunk (entry or exit) costs is specified for export behavior. Data for 1996-2002 on 1022 Korean firms, of which 95 are in the food processing sector, are assembled. A nonparametric measure of firm productivity is derived for use in the export-behavior (probit) model. Results show the significant effects of sunk costs on the export decision of Korean firms. A firm-size effect on export behavior is identified for food processing firms, unlike in the case of their manufacturing counterparts. We also find a firm-size effect on productivity in all manufacturing firms.
CURRENT TRENDS IN TEACHING SPEAKING AND LISTENING SKILLS
Creators: name: Eshnazarova, Munavvarbonu
Publisher: name: Zenodo
Year: 2024

description: The ability to communicate effectively is essential in today’s globalized world, making speaking and listening skills crucial components of language learning. Teaching these skills has evolved considerably over the years, shifting from traditional, teacher-centered approaches to more dynamic, learner-centered models. As new technologies and methodologies emerge, they offer innovative ways to enhance both speaking and listening proficiency. This thesis explores the latest trends in teaching speaking and listening skills, focusing on technology integration, communicative teaching approaches, and promoting learner autonomy.
On high energy tails in inelastic gases
Creators: name: Lambiotte, R.
name: Brenig, L.
name: Salazar, J. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the formation of high energy tails in a one-dimensional kinetic model for granular gases, the so-called Inelastic Maxwell Model. We introduce a time- discretized version of the stochastic process, and show that continuous time implies larger fluctuations of the particles energies. This is due to a statistical relation between the number of inelastic collisions undergone by a particle and its average energy. This feature is responsible for the high energy tails in the model, as shown by computer simulations and by analytical calculations on a linear Lorentz model.
description: 8 pages, 2 figures, submitted to physica a
Single Photon Randomness based on a Defect Center in Diamond
Creators: name: Chen, Xing
name: Greiner, Johannes
name: Wrachtrup, Jörg
name: Gerhardt, Ilja
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The prototype of a quantum random number generator is a single photon which impinges onto a beam splitter and is then detected by single photon detectors at one of the two output paths. Prior to detection, the photon is in a quantum mechanical superposition state of the two possible outcomes with - ideally - equal amplitudes until its position is determined by measurement. When the two output modes are observed by a single photon detector, the generated clicks can be interpreted as ones and zeros - and a raw random bit stream is obtained. Here we implement such a random bit generator based on single photons from a defect center in diamond. We investigate the single photon emission of the defect center by an anti-bunching measurement. This certifies the "quantumness" of the supplied photonic input state, while the random "decision" is still based on the vacuum fluctuations at the open port of the beam-splitter. Technical limitations, such as intensity fluctuations, mechanical drift, and bias are discussed. A number of ways to suppress such unwanted effects, and an a priori entropy estimation are presented. The single photon nature allows for a characterization of the non-classicality of the source, and allows to determine a background fraction. Due to the NV-center's superior stability and optical properties, we can operate the generator under ambient conditions around the clock. We present a true 24/7 operation of the implemented random bit generator.
description: 21 pages, 4 figures
Policing fantasy city
Creators: name: Huey, Laura
Publisher: name: University of British Columbia
Year: 2009

description: This study explores the creation and proliferation of urban entertainment destinations i n two Vancouver neighbourhoods - Gastown and Granville Mall - and the effect that these spaces are having on the delivery of urban policing services. This analysis provides a basis for a critique of both the 'broken windows' thesis and consumer culture. Urban entertainment destinations (UEDS) are sites that utilize forms of entertainment as a means of retailing goods and services. Unlike traditional notions of the city, site operators, and increasingly consumers, view these areas solely as spaces of consumption linked to pleasure. However, the marketing of many of these sites as pleasure spots is problematic for site operators because of the pre-existence of various forms of 'urban blight' that are commonly associated with the inner city. In order to reduce, or eliminate, a number of 'quality of life' issues that plague retailers and consumers, such as panhandling, graffiti, squeegees, street youth, and so on, business improvement associations (BIAs), which function roughly as site operators, demand an increased police presence. To augment existing public policing programs in their areas, many BIAs are also contracting private security services to engage in 'broken windows'-style policing in public spaces. Many of these services work cooperatively with public programs. The thesis advances three propositions. First, urban entertainment destinations generate demands for both increased and diversified forms of policing. Second, these demands for policing can be traced to modern consumption patterns and the mass media. Third, these demands can translate into 'policing' practices that are not centered around crime prevention or other strategies commonly associated with policing per se, but rather have more to do with creating and maintaining images of safety and 'risklessness' in sites frequented by consumers.
Struggle Country: The Rural Ideal in Twentieth Century Australia
Creators: name: Davison, Graeme
name: Brodie, Marc
Publisher: name: Monash University
Year: 2020
Subjects: subject: 160104 Social and Cultural Anthropology
subject: FOS: Sociology
subject: 160403 Social and Cultural Geography
subject: FOS: Social and economic geography

description: The decline of Australian country life is not new – either as a phenomenon or as a popular fear. Contemporary interest in this area is often highlighted in hopeful policy frameworks for the revitalisation of town and countryside. The continuing interaction between our dreams of the Australian countryside and the reality of its decline is the key focus of Struggle Country: The Rural Ideal in Twentieth Century Australia. Linking present concerns to history, this collection of essays looks at how the dreams of progress that captured the imagination of country towns and regions, city politicians and even historians themselves, led to specific positive and negative outcomes in these areas, which in turn influenced how these regions were treated. This book provides: - a broad historical perspective on ideas of 'decline' in the bush - a thorough understanding of how country people have seen themselves and their future, and how this has affected development in country areas - a nuanced approach to 'studies of the bush', distinguishing between farmers and country town dwellers and their experiences and beliefs, and providing both historical and contemporary analysis. Struggle Country revitalises the field of 'rural history'. In recent years, interest in rural and regional Australia has focused on the decline of country life, due largely to concerns over the effects of a globalised economy and the impact of a range of political developments. But this focus has had little historical perspective: it has concentrated on contemporary developments and has failed to place recent problems in the broader context of the development of rural Australia. The eleven papers in this collection provide much of this context, bringing the historical background and parallels to the fore. The book will be of great interest to historians and students of Australian history, as well as to readers interested in the relationship between rural dreams and the underlying realities of rural life.
Atomistic Structure Learning Algorithm with surrogate energy model relaxation
Creators: name: Mortensen, Henrik Lund
name: Meldgaard, Søren Ager
name: Bisbo, Malthe Kjær
name: Christiansen, Mads-Peter V.
name: Hammer, Bjørk
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Machine Learning (cs.LG)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The recently proposed Atomistic Structure Learning Algorithm (ASLA) builds on neural network enabled image recognition and reinforcement learning. It enables fully autonomous structure determination when used in combination with a first-principles total energy calculator, e.g. a density functional theory (DFT) program. To save on the computational requirements, ASLA utilizes the DFT program in a single-point mode, i.e. without allowing for relaxation of the structural candidates according to the force information at the DFT level. In this work, we augment ASLA to establish a surrogate energy model concurrently with its structure search. This enables approximative but computationally cheap relaxation of the structural candidates before the single-point energy evaluation with the computationally expensive DFT program. We demonstrate a significantly increased performance of ASLA for building benzene while utilizing a surrogate energy landscape. Further we apply this model-enhanced ASLA in a thorough investigation of the c(4x8) phase of the Ag(111) surface oxide. ASLA successfully identifies a surface reconstruction which has previously only been guessed on the basis of scanning tunnelling microscopy images.
A Fuzzy-based Framework to Support Multicriteria Design of Mechatronic Systems
Creators: name: Mohebbi, Abolfazl
name: Achiche, Sofiane
name: Baron, Luc
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Designing a mechatronic system is a complex task since it deals with a high number of system components with multi-disciplinary nature in the presence of interacting design objectives. Currently, the sequential design is widely used by designers in industries that deal with different domains and their corresponding design objectives separately leading to a functional but not necessarily an optimal result. Consequently, the need for a systematic and multi-objective design methodology arises. A new conceptual design approach based on a multi-criteria profile for mechatronic systems has been previously presented by the authors which uses a series of nonlinear fuzzy-based aggregation functions to facilitate decision-making for design evaluation in the presence of interacting criteria. Choquet fuzzy integrals are one of the most expressive and reliable preference models used in decision theory for multicriteria decision making. They perform a weighted aggregation by the means of fuzzy measures assigning a weight to any coalition of criteria. This enables the designers to model importance and also interactions among criteria thus covering an important range of possible decision outcomes. However, specification of the fuzzy measures involves many parameters and is very difficult when only relying on the designer's intuition. In this paper, we discuss three different methods of fuzzy measure identification tailored for a mechatronic design process and exemplified by a case study of designing a vision-guided quadrotor drone. The results obtained from each method are discussed in the end.
A Need for Speed? Rural Internet Connectivity and the No access / Dial-up / High-speed Decision
Creators: name: Whitacre, Brian E.
name: Mills, Bradford F.
name: Whitacre, Brian E.
name: Mills, Bradford F.
Publisher: name: Unknown
Year: 2006
Subjects: Public Economics

description: As residential high-speed Internet access has become more prevalent, the composition of the "digital divide" between rural and urban households has shifted. In 2000, dial-up access rates in rural household lagged behind their urban counterparts by eleven percent. By 2003, however, dial-up access rates were equal between rural and urban households, due in part to soaring high-speed rates in urban areas. This paper explores the household decision between no Internet access, dial-up access, and high-speed access. In particular, nested logit and multinomial logit specifications are compared. The paper also uses a decomposition technique to estimate the contributions of various factors (including education, income, and infrastructure levels) to each of the "access-specific" divides between rural and urban households. The results suggest that the nested logit is the preferred specification, and that differences in education and income account for the majority of each type of divide.
Feature Selection for Classification of Blazars Based on Optical Photometric and Polarimetric Time-Series Data
Creators: name: Uemura, Makoto
name: Abe, Taisei
name: Yamada, Yurika
name: Ikeda, Shiro
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Blazars can be divided into two subtypes, flat spectrum radio quasars (FSRQs) and BL Lac objects, which have been distinguished phenomenologically by the strength of their optical emission lines, while their physical nature and relationship are still not fully understood. In this paper, we focus on the differences in their variability. We characterize the blazar variability using the Ornstein-Uhlenbeck (OU) process, and investigate the features that are discriminative for the two subtypes. We used optical photometric and polarimetric data obtained with the 1.5-m Kanata telescope for 2008-2014. We found that four features, namely the variation amplitude, characteristic timescale, and non-stationarity of the variability obtained from the light curves and the median of the degree of polarization (PD), are essential for distinguishing between FSRQs and BL Lac objects. FSRQs are characterized by rare and large flares, while the variability of BL Lac objects can be reproduced with a stationary OU process with relatively small amplitudes. The characteristics of the variability are governed not by the differences in the jet structure between the subtypes, but by the peak frequency of the synchrotron emission. This implies that the nature of the variation in the jets is common in FSRQs and BL Lac objects. We found that BL Lac objects tend to have high PD medians, which suggests that they have a stable polarization component. FSRQs have no such component, possibly because of a strong Compton cooling effect in sub-pc scale jets.
description: 13 pages, 10 figures, accepted for publication in PASJ
Renormalization of Hard-Core Guest Charges Immersed in Two-Dimensional Electrolyte
Creators: name: Samaj, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: This paper is a continuation of a previous one [L. {Š}amaj, {\it J. Stat. Phys.} {\bf 120}:125 (2005)] dealing with the renormalization of a guest charge immersed in a two-dimensional logarithmic Coulomb gas of pointlike $\pm$ unit charges, the latter system being in the stability-against-collapse regime of reduced inverse temperatures $0\le β<2$. In the previous work, using a sine-Gordon representation of the Coulomb gas, an exact renormalized-charge formula was derived for the special case of the {\em pointlike} guest charge $Q$, in its stability regime $β| Q| < 2$. In the present paper, we extend the renormalized-charge treatment to the guest charge with a hard core of radius $σ$, which allows us to go beyond the stability border $β| Q| = 2$. In the limit of the hard-core radius much smaller than the correlation length of the Coulomb-gas species and at a strictly finite temperature, due to the counterion condensation in the extended region $β| Q| >2$, the renormalized charge $Q_{\rm ren}$ turns out to be a periodic function of the bare charge $Q$ with period 1. The renormalized charge therefore does not saturate at a specific finite value as $| Q| \to\infty$, but oscillates between two extreme values. In the high-temperature Poisson-Boltzmann scaling regime of limits $β\to 0$ and $Q\to\infty$ with the product $βQ$ being finite, one reproduces correctly the monotonic dependence of $βQ_{\rm ren}$ on $βQ$ in the guest-charge stability region $β| Q| <2$ and the Manning-Oosawa type of counterion condensation with the uniform saturation of $βQ_{\rm ren}$ at the value $4/π$ in the region $β| Q|\ge 2$.
description: 28 pages, 1 figure