cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tracking tourists in a gamification process: a theoretical approach
Creators: name: Signoretti, Alberto
name: Martins, Marcio
Publisher: name: Journal of Tourism & Development
Year: 2017

description: This article proposes a theoretical approach to the use of new technologies to track tourists: a smartphone application based on GPS devices associated to a gamification process. Designed to encourage tourists to share their time and space behaviour during their stay, it allows to collect information related with the tourist movements, like territoriality, movement patterns, orientation and locomotion. As the multi-attraction visit is very common while visiting a urban destination during the multi-destination trips, it will provide a set of data related to the visit intensity and the visit specificity. Based on GPS devices, the association with other advanced technology, has advantages such as GIS, Google Earth or others, is very accurate in urban areas due to high coverage, and it is not very intrusive. Despite being limited to smartphone battery life it was designed to track them without an internet connection and to send data automatically to the “cloud” as soon as a wireless connection is found. One of the most innovative methods is the possibility to track tourists not for only one day but for all the entire stay without being intrusive, contributing to a deeper understanding of tourist’s space and time behaviour. It provides, simultaneously a much more appealing and profitable visit to the tourist.
description: Journal of Tourism & Development, Vol 1 No 27/28 (2017)
Additional file 5 of Implementing a personalized pharmaceutical plan in kidney or liver transplant patients: study protocol for a stepped-wedge cluster randomized trial (GRePH)
Creators: name: Pourrat, Xavier
name: Berthy, Elise
name: Dupuis, Antoine
name: Barbier, Louise
name: Buchler, Matthias
name: Guillon, Leslie Grammatico
name: Monmousseau, Fanny
name: Ruspini, Eric
name: Salamé, Ephrem
name: Houdard, Solène Brunet
name: Giraudeau, Bruno
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Marine Biology
subject: Cancer
subject: Science Policy
subject: Hematology
subject: 60506 Virology
subject: FOS: Biological sciences

description: Additional file 5. Knowledge of hygienic and dietary measures questionnaire.
The Cannabis use disorder identification test - revised (CUDIT-R) : categorisation and interpretation
Creators: name: Marshall, SE
Publisher: name: University Of Tasmania
Year: 2023

description: The Cannabis Use Identification Test-Revised (CUDIT-R) is a brief cannabis misuse-screening tool, which is widely used to identify cannabis use problems. The CUDIT-R is widely accepted and psychometrically reliable within a clinical population. However, it is unclear if these same cut-offs are applicable in a community population. Additionally, the proposed changes in the DSM-5 introduce a new classification system and severity threshold system for identifying the severity of cannabis use disorder. Accordingly, the current CUD1T-R cut-off scores will no longer mirror the DSM severity thresholds. Consequently, the current study aims to identify community based cut-off scores that are consistent with the DSM-5 cannabis use disorder severity thresholds, as well as an indication of possible psychosocial difficulties experienced at these levels of cannabis use severity. Method and Results. The sample for analysis consisted of 310 Australian cannabis users. Receiver operating characteristics (ROCs) was the statistical procedure used to determine cut-off scores that produced maximum sensitivity and specificity, when calibrated against the DSM-IV and DSM-5 cannabis use severity thresholds, and the Severity of Dependence Scale. The results identified that a CUD1T-R cut-off of 13 was the optimal threshold for cannabis dependence (DSM-1V); a cut-off score of 9 was the optimal threshold for mild cannabis use disorder (DSM-5), a cut-off score of 13 was identified for moderate and severe cannabis use disorder (DSM-5), and finally, a SDS cut-off score of 10 was identified. Discussion. The current study has identified community based CUDIT-R cut-off points that are consistent with the DSM-5 cannabis use disorder severity thresholds and has provided an indication of possible psychosocial difficulties experienced by cannabis users at varying CUDIT-R cut-off points, which may inform clinical intervention.
Oxazolopyridines towards the treatment of Human African sleeping sickness
Creators: name: Almohaywi, B
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis describes the synthesis and structure activity relationship (SAR) of oxazolopyridine and related analogues against Trypanosoma brucei, the causative agent of Human African Trypanosomiasis, a neglected, fatal parasitic disease that is a major cause of death and disability affecting many sub-Saharan African countries. Collaborators at Monash Institute of Pharmaceutical Science (MIPs), and ESKITIS institute found eight compounds as potential candidates via high throughput screening (HTS) of a large library of compounds against the disease. Amongst the compounds screened, an oxazolo[4,5-b]pyridine compound was of particular interest. In collaboration with MIPS, this work aimed to modify certain regions of the lead compounds and to develop a SAR against T. brucei, aiming for the synthesis of better analogues of the lead compound, as discussed in Chapter 2 and Chapter 3. A number of compounds have been made through modification around the central phenyl ring and the heterocyclic oxazolopyridine core. Modification at the central phenyl ring revealed the intolerance of that position for substitution, while the best compounds remained either the lead compound itself or its analogues, with the chlorine being replaced by either a hydrogen or substituting the 2-furyl amide for its 3-furyl counterpart. Modification of the heterocyclic core has resulted in a number of active compounds. We suggested that the modification and substitutions on oxazolopyridine core is more favourable for better activity. In addition to the anti-trypanosomal activities, these compounds are similar to heterocyclic amine derivatives found in cooked meat and fish, which has the potential to cause cancer. This has prompted us to investigate the potential for DNA damage activity of these compounds and the amine precursors, as discussed in Chapter 4.
Additional file 1 of Early-life maternal attachment and risky health behaviours in adolescence: findings from the United Kingdom Millennium Cohort Study
Creators: name: Reyes, Beatrice D.
name: Hargreaves, Dougal S.
name: Creese, Hanna
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Cell Biology
Biotechnology
Science Policy

description: Additional file 1.
A Bayesian approach to the analysis of time symmetry in light curves: Reconsidering Scorpius X-1 occultations
Creators: name: Blocker, Alexander W.
name: Protopapas, Pavlos
name: Alcock, Charles R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present a new approach to the analysis of time symmetry in light curves, such as those in the x-ray at the center of the Scorpius X-1 occultation debate. Our method uses a new parameterization for such events (the bilogistic event profile) and provides a clear, physically relevant characterization of each event's key features. We also demonstrate a Markov Chain Monte Carlo algorithm to carry out this analysis, including a novel independence chain configuration for the estimation of each event's location in the light curve. These tools are applied to the Scorpius X-1 light curves presented in Chang et al. (2007), providing additional evidence based on the time series that the events detected thus far are most likely not occultations by TNOs.
description: 24 pages, 18 figures. Preprint typeset using LaTeX style emulateapj v. 04/20/08
An output adjusted price index for public school expenditures in British Columbia (1961-1969)
Creators: name: Armstrong, Henry Graham
Publisher: name: University of British Columbia
Year: 2011

description: The research examined the validity of four commonly held assumptions which appear to be the bases of public school policy in British Columbia. 1. The rate of increase in the price of public school education has been greater than price increases in the economy generally. 2. There has been an increase in the quantities of goods and services purchased and that these goods and services are not required for the educative process. 3. A reduction in the flow of funds will curtail the purchases of goods and services not required for the educative process. 4. The rate of increase in price can be curtailed by reducing the flow funds to public schools and by restricting the rate of increase in. teachers' salaries. A price index, using the Paashe method, was first constructed. Then, using this index operational expenditures for public schools in B.C. between 1961 and 1969 were deflated. Differences in the costs of elementary, junior secondary, senior secondary, special elementary and occupational students were used to weight student data to determine changes in the units of output. Unit costs were determined in current and constant dollar terms. Analysis of the data demonstrated that the rate of increase in the price of public school education was lower than the rate of increase in the prices of the products of some other labour intensive industries and the average weekly wage of British Columbians. Further, that the rate of increase in the price and the rate of increase in the quantity of services purchased were inversely related to the degree to which the services are directly involved in the educative process.
Critique of multinomial coefficients method for evaluating Tsallis and Renyi entropies
Creators: name: Parvan, A. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Oikonomou [Physica A 386 (2007) 119] has published a calculation which purports to show that the Tsallis and Renyi entropies can be obtained from the generalized multinomial coefficients. In this paper, we prove that the method of generalized multinomial coefficients failed to determine the Tsallis entropy at equilibrium. Moreover, it is shown that Oikonomou's analysis contains mistakes which led him to misleading statements related to the Jaynes principle of maximum entropy, the Tsallis and the Renyi statistics.
MPEC 2023-Y27 : 2023 YB
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 YB

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Noncommutative quantum mechanics: uniqueness of the functional description
Creators: name: Bemfica, F. S.
name: Girotti, H. O.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The generalized Weyl transform of index $α$ is used to implement the time-slice definition of the phase space path integral yielding the Feynman kernel in the case of noncommutative quantum mechanics. As expected, this representation for the Feynman kernel is not unique but labeled by the real parameter $α$. We succeed in proving that the $α$-dependent contributions disappear at the limit where the time slice goes to zero. This proof of consistency turns out to be intricate because the Hamiltonian involves products of noncommuting operators originating from the non-commutativity. The antisymmetry of the matrix parameterizing the non-commutativity plays a key role in the cancelation mechanism of the $α$-dependent terms.
description: 13 pages
Anatomy of a polis-system : Magna Graecia during the archaic period
Creators: name: Miller, AJ
Publisher: name: University Of Tasmania
Year: 2023

description: The aim of this thesis is to examine the development and dynamics of Magna Graecia' s polis-system during the archaic period, and to evaluate the sources, nuances, parameters, and exercising of Italiote power in the context of inter-polis relations for these centuries. Particular attention is given to the rise of large imperialist poleis in this period, and the impact these states had upon the polis-system as a whole. Following thematic studies of the conceptual addition of Magna Graecia to the Hellenic world and the ways in which the earliest Greek presence in southern Italy influenced the parameters of the future Italiote polis-system, the thesis then divides Magna Graecia's poleis into separate geographic regions for detailed examination. Special attention is paid to the way in which the northern, southern, and central regions of Magna Graecia were dominated by Greeks of one particular ethnic identity, be it Euboian, Achaian, or otherwise. Analysis of the maritime interests and strengths of the Euboians and their poleis on the Bay of Naples and the Straits of Messina, is followed by a study of the Achaian hegemony in central Magna Graecia and the enduring preponderance of the senior Achaian polis of the archaic period, Sybaris. Attention is also paid to the considerable effect these hegemonies had upon the pole is of Magna Graecia not of Euboian or Achaian extraction, in terms of their foreign policies and development. The thesis concludes with a study of the last decades of the archaic period and the momentous changes that took place within the Italiote polis-system at this time. Essentially, power within this polis-system experienced long-term and fundamental redistribution. Particular attention is given to the way in which internecine warfare brought about the destruction of many of the props of Achaian Italiote power in Magna Graecia, which in turn ushered in a far less monopolistic era in terms of strength within this polis-system. It is concluded that the collapse of Sybaris and the chain reaction it sparked, facilitated a widespread decline in the political stocks of the Italiote poleis from which it took generations to recover. It is thus maintained that Sybaris was the symbol of archaic Magna Graecia's power and that its demise ultimately exposed the Italiote pole is to numerous hitherto dormant dangers and outside interference. Moreover, it is demonstrated that the parameters of Magna Graecia' s polis-system, so long linked to the stability of its dominant Achaian and Euboian components, were irrecoverably altered during the transition to the classical period.
Additional file 5 of A novel model of acquired hydrocephalus for evaluation of neurosurgical treatments
Creators: name: McAllister, James P.
name: Talcott, Michael R.
name: Isaacs, Albert M.
name: Zwick, Sarah H.
name: Garcia-Bonilla, Maria
name: Castaneyra-Ruiz, Leandro
name: Hartman, Alexis L.
name: Dilger, Ryan N.
name: Fleming, Stephen A.
name: Golden, Rebecca K.
name: Morales, Diego M.
name: Harris, Carolyn A.
name: Limbrick, David D.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 5: Table S1. Medications.
Jamming transition in air transportation networks
Creators: name: Lacasa, Lucas
name: Cea, Miguel
name: Zanin, Massimiliano
Publisher: name: arXiv
Year: 2009
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In this work we present a model of an air transportation traffic system from the complex network modelling viewpoint. In the network, every node corresponds to a given airport, and two nodes are connected by means of flight routes. Each node is weighted according to its load capacity, and links are weighted according to the Euclidean distance that separates each pair of nodes. Local rules describing the behavior of individual nodes in terms of the surrounding flow have been also modelled, and a random network topology has been chosen in a baseline approach. Numerical simulations describing the diffusion of a given number of agents (aircraft) in this network show the onset of a jamming transition that distinguishes an efficient regime with null amount of airport queues and high diffusivity (free phase) and a regime where bottlenecks suddenly take place, leading to a poor aircraft diffusion (congested phase). Fluctuations are maximal around the congestion threshold, suggesting that the transition is critical. We then proceed by exploring the robustness of our results in neutral random topologies by embedding the model in heterogeneous networks. Specifically, we make use of the European air transportation network formed by 858 airports and 11170 flight routes connecting them, which we show to be scale-free. The jamming transition is also observed in this case. These results and methodologies may introduce relevant decision making procedures in order to optimize the air transportation traffic.
Ghosts in asymmetric brane gravity and the decoupled stealth limit
Creators: name: Koyama, Kazuya
name: Padilla, Antonio
name: Silva, Fabio P
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the spectrum of gravitational perturbations around a vacuum de Sitter brane in a 5D asymmetric braneworld model, with induced curvature on the brane. This generalises the stealth acceleration model proposed by Charmousis, Gregory and Padilla (CGP) which realises the Cardassian cosmology in which power law cosmic acceleration can be driven by ordinary matter. Whenever the bulk has infinite volume we find that there is always a perturbative ghost propagating on the de Sitter brane, in contrast to the Minkowski brane case analysed by CGP. We discuss the implication of this ghost for the stealth acceleration model, and identify a limiting case where the ghost decouples as the de Sitter curvature vanishes.
description: 21 pages
Thermal elution of oligonucleotides on cellulose columns containing oligodeoxyribonucleotides of defined length and sequence
Creators: name: Astell, Caroline Ruth
Publisher: name: University of British Columbia
Year: 2011

description: The high degree of specificity of base interactions of complementary polynucleotides is a fundamental property of biological systems. Through interactions of this type, genetic information is able to flow, to succeeding generations by replication of the genome, and from deoxyribonucleic acid and ribonucleic acids to proteins, by the steps of transcription and translation. The experiments reported in this thesis are concerned with a study of the feasibility of developing a method suitable for the isolation of naturally occurring polynucleotides by hybridization of the polynucleotide with a complementary oligodeoxyribonucleotide. Homo-oligodeoxyribonucleotides (lengths up to the dodecanucleotides) of thymidylic and deoxy-adenylic acids have been prepared by chemical procedures, as have oligodeoxyribonucleotides of the repeating, complementary trinucleotide base sequences, d(pTpTpC)[sub n], d(pCpTpT)[sub n], and d(pApApG)[sub n], (n = 1 to 4). Various oligonucleotides have been linked covalently to cellulose, an insoluble, inert matrix, via the 5'phosphoryl group on the oligodeoxyribonuc1eotides, using the water-soluble carbodiimide, N-cyclohexyl-N'β(4-methylmorpholinium)ethylcarbodiimide p-toluenesulfonate. The resultant oligonucleotide-celluloses, in the form of small columns, were examined for their ability to retain complementary oli gomers. The retained oligonucleotides can be eluted conveniently with a linear temperature gradient. The data indicate that at least all but one nucleotide, and possibly the entire oligonucleotide attached to the cellulose is capable of hydrogen bonding with its complementary sequence. The resolution obtained with these columns is such that oligonucleotides, differing in length by one nucleotide residue may be fractionated. The capacity is 1/3 to 1/4 of the theoretical amount. Preliminary experiments suggest that these oligonucleotide-celluloses are capable of selectively removing a complementary sequence of nucleic acid from a mixture of nucleic acids.
Dark Matter Halos and Evolution of Bars in Disk Galaxies: Collisionless Models Revisited
Creators: name: Villa-Vargas, Jorge
name: Shlosman, Isaac
name: Heller, Clayton
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We construct and evolve families of steady-state models of stellar disks embedded in live DM halos, in order to study the dynamical and secular phases of bar evolution. These models are tested against those published in the literature in order to extend them and include the gaseous component in the follow up paper. We are interested in the angular momentum (J) redistribution in the disk-halo system. We confirm the previous results and quantify for the first time the dual role that the DM halos play in the bar evolution: more centrally concentrated halos dilute the dynamical processes, such as spontaneous bar instability and vertical buckling instability, and slowdown the J transfer, while facilitating it in the secular phase. Within the corotation radius (Rcr), the disk J remains nearly constant, as long as Rcr stays within the disk -- a sign that the lost J to the outer disk and the halo is being compensated by an influx of fresh J due to the outward motion of Rcr. This is feasible as long as the bar slowdown dominates the loss of J inside Rcr. We find that in some models the bar pattern speed stalls for prolonged time periods when Rcr is located outside the disk. This phenomenon appears concurrent with the near absence of J transfer between the disk and the halo. Furthermore, we confirm that stellar bars generally display the corotation to bar size ratios in the range of ~1-1.4, but only between the times of the first buckling and Rcr leaving the disk. The corotation-to-disk size ratio emerges as an important dynamic discriminator between various stages of barred disk evolution. Finally, we analyze a number of correlations between the basic parameters of a barred disk and a halo, some already reported in the literature and some new.
description: 15 pages, 20 figures, to be published by the Astrophysical Journal; small corrections following the referee comments
Kullback-Leibler aggregation and misspecified generalized linear models
Creators: name: Rigollet, Philippe
Publisher: name: arXiv
Year: 2009
Subjects: subject: Machine Learning (stat.ML)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In a regression setup with deterministic design, we study the pure aggregation problem and introduce a natural extension from the Gaussian distribution to distributions in the exponential family. While this extension bears strong connections with generalized linear models, it does not require identifiability of the parameter or even that the model on the systematic component is true. It is shown that this problem can be solved by constrained and/or penalized likelihood maximization and we derive sharp oracle inequalities that hold both in expectation and with high probability. Finally all the bounds are proved to be optimal in a minimax sense.
description: Published in at http://dx.doi.org/10.1214/11-AOS961 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Additional file 1 of Improvised centrifugal spinning for the production of polystyrene microfibers from waste expanded polystyrene foam and its potential application for oil adsorption
Creators: name: Budlayan, Marco Laurence M.
name: Patricio, Jonathan N.
name: Lagare-Oracion, Jeanne Phyre
name: Arco, Susan D.
name: Alguno, Arnold C.
name: Basilio, Antonio
name: Latayada, Felmer S.
name: Capangpangan, Rey Y.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
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: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Hematology

description: Additional file 1.
Structural adjustment and regional relocation in the Tasmanian hop industry
Creators: name: Miller, CL
Publisher: name: University Of Tasmania
Year: 2023

description: The uniqueness of the agricultural pursuit of hop growing lies in its very high input costs and related agglomerative tendencies; the interest for this study lies in the predictable fluctuations in the area planted to the crop, deriving as they do from a complex of market-related and industry-behaviour considerations. Physical requirements for the crop are relatively narrow, but more important causes of local specialization have traditionally derived from the industrial use of the crop and the centralizing of certain processing facilities, particularly as these affect smaller producers. The attraction of the perennial crop for producers of even a hectare or less derives from the prospect of highly profitable returns; a prospect frequently not fulfilled. The hop plant, Humulus lupulus, has earned its reputation as a gambler's crop; the balance between fixed input costs, variable yields and prices for the commodity periodically has favoured costs over returns, leading to cyclical changes in total planted area and in the number of hop growers._ The spatial expression of such fluctuations is seen in the emergence of a core area of production within which land-use intensity for the crop has remained relatively unchanged for over a century. Beyond the core, the extensive margins of production exhibit cyclical expansion and contraction, at times including localities as widely spaced as Flinders Island and Strahan; but the forces leading to concentration and specialization within the industry have tended to confine production increasingly to the Derwent Valley and minor localities in the south of the state until the last two decades. Since 1960, a major new production region has emerged in the north-east of the state, reflecting changed economies of scale brought about by improved hop varieties and technological developments. The new hops have higher brewing value, thereby reducing the relative demand from brewers; smaller, more traditional growers in the south of the state have not been able to compete with the lower unit production costs of larger growers and have ceased production almost entirely. The central argument of the thesis is that the industry approach, particularly involving detailed study of production on individual farms, is a valuable contribution towards the understanding of patterns of agricultural land use as a whole. The study examines the industry in its historical and contemporary contexts and demonstrates the interrelatedness of physical and economic constraints to production. It considers the nature of political and behavioural influences and their respective impact on the spatial arrangement of the industry.
Effects of Molecular Adsorption on Optical Losses of the Ag (111) Surface
Creators: name: Gavrilenko, Alexander V.
name: McKinney, Carla S.
name: Gavrilenko, Vladimir I.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The first principles density functional theory (DFT) is applied to study effects of molecular adsorption on optical losses of silver (111) surface. The ground states of the systems including water, methanol, and ethanol molecules adsorbed on Ag (111) surface were obtained by the total energy minimization method within the local density approximation (LDA). Optical functions were calculated within the Random Phase Approximation (RPA) approach. Contribution of the surface states to optical losses was studied by calculations of the dielectric function of bare Ag (111) surface. Substantial modifications of the real and imaginary parts of the dielectric functions spectra in the near infrared and visible spectral regions, caused by surface states and molecular adsorption, were obtained. The results are discussed in comparison with available experimental data.
description: 7 pages, 4 figures, 1 table
Complexity of links in 3-manifolds
Creators: name: Pervova, Ekaterina
name: Petronio, Carlo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M27 (primary), 57M25, 57M20 (secondary)

description: We introduce a natural-valued complexity c(X) for pairs X=(M,L), where M is a closed orientable 3-manifold and L is a link contained in M. The definition employs simple spines, but for well-behaved X's we show that c(X) equals the minimal number of tetrahedra in a triangulation of M containing L in its 1-skeleton. Slightly adapting Matveev's recent theory of roots for graphs, we carefully analyze the behaviour of c under connected sum away from and along the link. We show in particular that c is almost always additive, describing in detail the circumstances under which it is not. To do so we introduce a certain (0,2)-root for a pair X, we show that it is well-defined, and we prove that X has the same complexity as its (0,2)-root. We then consider, for links in the 3-sphere, the relations of c with the crossing number and with the hyperbolic volume of the exterior, establishing various upper and lower bounds. We also specialize our analysis to certain infinite families of links, providing rather accurate asymptotic estimates.
description: 24 pages, 6 figures
Responding to the Nelson Memo: Repository Re-Curation for Open Science
Creators: name: Habermann, Ted
Publisher: name: Zenodo
Year: 2023
Subjects: metadata
Re-curation
repository
PID
ROR
DOI
Dryad
DataCite Commons
funder ID

description: The Nelson memo published by the White House Office of Science Technology Policy during August, 2022 highlighted the importance of persistent identifiers for connecting repository assets (e.g. datasets, people, organizations, and funders) to the global research infrastructure. Existing repositories of datasets, papers, and other research artifacts stand ready to make important contributions to global open science, but metadata in these repositories lack the required identifiers and repositories lack tools for finding and integrating them.

 

Re-curation, the process of improving existing metadata with new information, is one of the steps required to address these challenges while keeping repositories current and engaged with their communities. It includes mining repository metadata, bibliographies, and the global research infrastructure for information in many forms and interfaces.

 

Real-world solutions drawn from Dryad will demonstrate this re-curation approach along with metrics that measure and quantify progress.

A presentation presented at the 2023 AGU fall meeting.
Measures of success : capturing the impact of drug courts
Creators: name: Moore, E
Publisher: name: University Of Tasmania
Year: 2023

description: This research examines the development of therapeutic jurisprudence (T J) internationally and focuses on the outcomes of evaluations of various drug court programs. The field of T J generally and issues in the practice of evaluation are considered critically. The scope of success is examined with respect to recidivism, cost-effectiveness and other measures. Experiences from my visits to nine international drug courts and numerous associated agencies between February and May 2012 are distilled into a discussion of the 10 Key Components of drug courts at work. Extracts from interviews with 16 participants of the Court Mandated (drug) Diversion program (CMD) in Tasmania provide insight into outcomes self-attributed to participation in the program. This suggests the benefit of extending the parameters of how success is defined by the program, and could be useful in demonstrating not only the range of achievements of the program but also the value for money it therefore represents within the criminal justice system. A form designed to collect data of this nature is included. The prison costs saved (avoided) by 14 of the above offenders participating in the CMD program as an alternative to custody total $1.23 million. It is hoped that the provision of objective evidence of this nature can inform government policy and funding decisions in this area. In addition, a series of 'observations that work' and 'promising practices' is examined, and suggestions are made for the consideration of the local CMD program.
Additional file 1 of Confirmatory Efficacy and Safety Trial of Magnetic Seizure Therapy for Depression (CREST-MST): study protocol for a randomized non-inferiority trial of magnetic seizure therapy versus electroconvulsive therapy
Creators: name: Daskalakis, Zafiris J.
name: Tamminga, Carol
name: Throop, Alanah
name: Palmer, Lucy
name: Dimitrova, Julia
name: Farzan, Faranak
name: Thorpe, Kevin E.
name: McClintock, Shawn M.
name: Blumberger, Daniel M.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1:. SPIRIT checklist
Non-empirical nuclear energy functionals, pairing gaps and odd-even mass differences
Creators: name: Duguet, T.
name: Lesinski, T.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: First, we briefly outline some aspects of the starting project to design non-empirical energy functionals based on low-momentum vacuum interactions and many-body perturbation theory. Second, we present results obtained within an approximation of such a scheme where the pairing part of the energy density functional is constructed at first order in the nuclear plus Coulomb two-body interaction. We discuss in detail the physics of the odd-even mass staggering and the necessity to compute actual odd-even mass differences to analyze it meaningfully.
description: 8 pages, 1 figure, proceedings of the International Conference on Nuclear Structure and Dynamics, Dubrovnik, Croatia, May 4 - 8, 2009
The pre- versus post-main sequence evolutionary phase of B[e] stars: Constraints from 13CO band emission
Creators: name: Kraus, Michaela
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Many galactic B[e] stars suffer from improper distance determinations, which make it difficult to distinguish between a pre- and post-main sequence evolutionary phase on the basis of luminosity arguments. In addition, these stars have opaque circumstellar material, obscuring the central star, so that no detailed surface abundance studies can be performed. We propose a different indicator for the supergiant status of a B[e] star, based on the enrichment of its circumstellar matter by 13C, and detectable via its 13CO band emission in the K band spectra. Based on stellar evolution models, we calculate the variation of the 12C/13C isotopic surface abundance ratio during the evolution of non-rotating stars with different initial masses. For different values of the 12C/13C ratio we then compute synthetic first-overtone vibration-rotational band spectra from both the 12CO and 13CO molecule at different spectral resolutions. We further discuss the influence of stellar rotation on the variation of the surface 12C/13C ratio. The surface 12C/13C isotope ratio is found to decrease strongly during the post-main sequence evolution of non-rotating stars, from its interstellar value of about 70 to a value of about 15-20 for stars with initial masses higher than 7 M_sun, and to a value of less than 5 for stars with initial masses higher than 25 M_sun. We find that detectable 13CO band head emission is produced for isotope ratios 12C/13C < 20, and can most easily be detected with a spectral resolution of R ~ 1500...3000. For the rotating stellar models, the drop in 12C/13C already occurs for all stars with M > 9 M_sun during the main-sequence evolution. The detection of 13CO band head emission in such mid-resolution K band spectra of a B[e] star thus favours an evolved rather than a young nature of the object.
description: 10 pages, 6 figures, accepted for publication in A&A
Isocurvature forecast in the anthropic axion window
Creators: name: Hamann, J.
name: Hannestad, S.
name: Raffelt, G. G.
name: Wong, Y. Y. Y.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We explore the cosmological sensitivity to the amplitude of isocurvature fluctuations that would be caused by axions in the "anthropic window" where the axion decay constant f_a >> 10^12 GeV and the initial misalignment angle Theta_i << 1. In a minimal Lambda-CDM cosmology extended with subdominant scale-invariant isocurvature fluctuations, existing data constrain the isocurvature fraction to alpha < 0.09 at 95% C.L. If no signal shows up, Planck can improve this constraint to 0.042 while an ultimate CMB probe limited only by cosmic variance in both temperature and E-polarisation can reach 0.017, about a factor of five better than the current limit. In the parameter space of f_a and H_I (Hubble parameter during inflation) we identify a small region where axion detection remains within the reach of realistic cosmological probes.
description: 14 pages, 4 figures; v2: matches published version
An investigation into the effects of varying environments on high school children.
Creators: name: Moore, James F. H
Publisher: name: University Of Tasmania
Year: 2023

description: The idea for this study originated as a result of the Symposium, \Social Peychology in the Classroom\" presented by the Paychology and Guidance Branch of the Education Department of Victoria at the A.N.Z.A.A.S. Conference in Melbourne in August 1955. Many of the ideas and techniques and the results which had been obtained by their application were thought-provoking but the underlying theme which was continually stressed by all the speakers was the one which led to this study. This is the theme which is implicit in the approach to practical problems of the Psychology and Guidance Branch of the Victoria Education Department; the school is a social situation and that problems of adjustment in the school can best be dealt with by taking into account the total sooial situation within which the child finds himself. It follows that the success or failure of the school in imparting information and attitudes will then be to a large extent dependent on the social structure of the school and the classroom."
Diffusivity bounds for 1D Brownian polymers
Creators: name: Tarrès, Pierre
name: Tóth, Bálint
name: Valkó, Benedek
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60K35, 60K37, 60K40 (Primary) 60F15, 60G15, 60J25, 60J55 (Secondary)

description: We study the asymptotic behavior of a self-interacting one-dimensional Brownian polymer first introduced by Durrett and Rogers [Probab. Theory Related Fields 92 (1992) 337--349]. The polymer describes a stochastic process with a drift which is a certain average of its local time. We show that a smeared out version of the local time function as viewed from the actual position of the process is a Markov process in a suitably chosen function space, and that this process has a Gaussian stationary measure. As a first consequence, this enables us to partially prove a conjecture about the law of large numbers for the end-to-end displacement of the polymer formulated in Durrett and Rogers [Probab. Theory Related Fields 92 (1992) 337--349]. Next we give upper and lower bounds for the variance of the process under the stationary measure, in terms of the qualitative infrared behavior of the interaction function. In particular, we show that in the locally self-repelling case (when the process is essentially pushed by the negative gradient of its own local time) the process is super-diffusive.
description: Published in at http://dx.doi.org/10.1214/10-AOP630 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
The cluster-galaxy cross-spectrum: an additional probe of cosmological and halo parameters
Creators: name: Huetsi, Gert
name: Lahav, Ofer
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There are several wide field galaxy and cluster surveys planned for the nearest future, e.g. BOSS, WFMOS, ADEPT, Hetdex, SPT, eROSITA. In the simplest approach one would analyze these independently, thus neglecting the extra information provided by the cluster-galaxy cross-pairs. In this paper we have focused on the possible synergy between these surveys by investigating the amount of information encoded in the cross-pairs. We present a model for the cluster-galaxy cross-spectrum within the Halo Model framework. To assess the gain in performance due to inclusion of the cluster-galaxy cross-pairs we carry out a Fisher matrix analysis for a BOSS-like galaxy redshift survey targeting luminous red galaxies and a hypothetical mass-limited cluster redshift survey with a lower mass threshold of 1.7x10^14 M_sun/h over the same volume. On small scales cluster-galaxy cross-spectrum probes directly density profile of the halos, instead of the density profile convolved with itself, as is the case for the galaxy power spectrum. Due to this different behavior, adding information from the cross-pairs helps to tighten constraints on the halo occupation distribution. By inclusion of the cross-pairs a factor of ~2 stronger constraints are obtained for sigma_8, while the improvement for the dark energy figure-of-merit is somewhat weaker: an increase by a factor of 1.4.
description: 12 pages, Accepted for publication in A&A
Additional file 2 of Confirmatory Efficacy and Safety Trial of Magnetic Seizure Therapy for Depression (CREST-MST): study protocol for a randomized non-inferiority trial of magnetic seizure therapy versus electroconvulsive therapy
Creators: name: Daskalakis, Zafiris J.
name: Tamminga, Carol
name: Throop, Alanah
name: Palmer, Lucy
name: Dimitrova, Julia
name: Farzan, Faranak
name: Thorpe, Kevin E.
name: McClintock, Shawn M.
name: Blumberger, Daniel M.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2:. CREST-MST Consent
The transition from primary school to secondary school : one experience
Creators: name: Moore, Janette Maree
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis addresses the issue of the transition of students from primary school to secondary school and attempts to answer the following three research questions: 1) What are the perceptions of students about secondary school a) in Grade Six prior to admission, and b) within their first six months after admission? 2) What are the perceptions of parents about secondary school a) prior to the transition of their son/daughter to secondary school, and b) towards the end of their son' sf daughter's first year at secondary school? 3) To what extent are Grade Six primary teachers' predictions of students' peiformances in their first year of secondary school va_lidated by the students' secondary teachers? Following an overview of the relevant literature, this thesis describes the data gathering procedures which were undertaken throughout 1994, 1995 and 1996 in an attempt to answer the research questions. The research phase of this thesis was conducted in only two schools. The participants were students, parents and teachers of these schools. Students, parents and teachers participated in a variety of data gathering procedures. Each procedure is described and the results are reported, analysed and discussed. This thesis finds that the perceptions of secondary school held by students both prior to and following enrolment in secondary school vary on the basis of gender and familial association with the secondary school. The research identifies 19 perceptions which are of concern to children prior to transition and eight perceptions which are of concern to children following transition. Such concerns are outlined. Additionally this study finds that the perceptions of parents can be grouped into several main areas both before and after transition but that these areas are not particularly consistent across the time span. As well the study claims that the Grade Six and Seven teachers fmd reasonable congruence between each other's assessments of students in their first year of secondary school. This thesis concludes that modifications to transition educational practices are necessary at all levels of the education system and accordingly makes recommendations for modifications to current practice.
The mass and velocity anisotropy of the Carina, Fornax, Sculptor and Sextans dwarf spheroidal galaxies
Creators: name: Lokas, Ewa L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We model the large kinematic data sets for the four Milky Way dwarf spheroidal (dSph) satellites: Carina, Fornax, Sculptor and Sextans, recently published by Walker et al. The member stars are selected using a reliable dynamical interloper removal scheme tested on simulated data. Our member selection is more restrictive than the one based on metallicity indicators as it removes not only contamination due to Milky Way stars but also the unbound stars from the tidal tails. We model the cleaned data sets by adjusting the solutions of the Jeans equations to the profiles of the projected velocity dispersion and kurtosis. The data are well reproduced by models where mass follows light and the best-fitting stellar orbits are isotropic to weakly tangential, as expected from the tidal stirring scenario. The Fornax dwarf, with more than 2400 member stars, is a dSph galaxy with the most accurately determined mass to date: its 1 sigma error following from the sampling errors of the velocity moments is below 5 percent. With mass-to-light ratio of 97 solar units, Sextans seems to be the most dark matter dominated of the four dSph galaxies.
description: 5 pages, 4 figures, accepted for publication in MNRAS Letters