cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the gas heating effect of helium atmospheric pressure plasma jet
Creators: name: Nascimento, Fellype do
name: Gerling, Torsten
name: Kostov, Konstantin Georgiev
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Plasma medicine is an emerging research field which has been driven by the development of plasma sources suitable to generate low temperature plasmas. In many cases, such devices can operate without a gas flow, producing a plasma discharge from the ambient air. However, the most common case is the use of a working gas at a given flow rate to produce a plasma jet. Helium (He) is one of the gases commonly used as the carrier gas to generate cold atmospheric pressure plasma jets (CAPPJs) due mainly to the easiness to ignite a gas discharge with it. However, in this work it was observed that most of the heating of a He CAPPJ can come just from the expansion of the He gas. This was found through measurements of gas temperature ($T_{gas}$), using fiber optic temperature (FOT) sensors, and thermal output, using both FOT and infrared imaging with the He flow impinging on a copper (Cu) plate. Such findings were achieved through comparisons of $T_{gas}$ and the temperature on the Cu ($T_{Cu}$) plate in the conditions with and without discharge ignition, as well as comparing $T_{gas}$ in the free gas/jet mode with and without discharge ignition. It was verified that the $T_{gas}$ values increased as the distance from the gas outlet was enlarged, especially at low He flow rates, even without discharge ignition. Despite the temperature increase with distance, it is possible to produce plasma jets with temperatures lower than 40 $^\circ$C at low He flow rates.
Ultrafast quasiparticle dynamics in superconducting iron pnictide CaFe1.89Co0.11As2
Creators: name: Kumar, Sunil
name: Harnagea, L.
name: Wurmehl, S.
name: Buchner, B.
name: Sood, A. K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Nonequilibrium quasiparticle relaxation dynamics is reported in superconducting CaFe1.89Co0.11As2 single crystal using femtosecond time-resolved pump-probe spectroscopy. The carrier dynamics reflects a three-channel decay of laser deposited energy with characteristic time scales varying from few hundreds of femtoseconds to order of few nanoseconds where the amplitudes and time-constants of the individual electronic relaxation components show significant changes in the vicinity of the spin density wave (T_SDW ~ 85 K) and superconducting (T_SC ~ 20 K) phase transition temperatures. The quasiparticles dynamics in the superconducting state reveals a charge gap with reduced gap value of 2$Δ$_0/k_BT_SC ~ 1.8. We have determined the electron-phonon coupling constant $\lemda$ to be ~ 0.14 from the temperature dependent relaxation time in the normal state, a value close to those reported for other types of pnictides. From the peculiar temperature-dependence of the carrier dynamics in the intermediate temperature region between the superconducting and spin density wave phase transitions, we infer a temperature scale where the charge gap associated with the spin ordered phase is maximum and closes on either side while approaching the two phase transition temperatures.
description: 6 pages, 4 figures (revised manuscript); http://dx.doi.org/10.1016/j.ssc.2013.02.008
New Higgs interactions and recent data from the LHC and the Tevatron
Creators: name: Banerjee, Shankha
name: Mukhopadhyay, Satyanarayan
name: Mukhopadhyaya, Biswarup
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We perform a multi-parameter global analysis of all data available till date from the ATLAS, CMS and Tevatron experiments, on the signals of a Higgs boson, to investigate how much scope exists for departure from the standard model prediction. We adopt a very general and model-independent scenario, where separate deviations from standard model values are possible for couplings of the observed scalar with up-and down-type fermions, W-and Z-boson pairs, as well as gluon and photon pair effective interactions. An arbitrary phase in the coupling with the top-pair, and the provision for an invisible decay width for the scalar are also introduced. After performing a global fit with seven parameters, we find that their values at 95% confidence level can be considerably different from standard model expectations. Moreover, rather striking implications of the phase in top-quark coupling are noticed. We also note that the invisible branching ratio can be sizeable, especially when the couplings of the Higgs to W-and Z-pairs are allowed to be different.
description: 18 pages, 4 figures; v2: minor additions to text
Sustainable tourism certification: A case study of Noosa Biosphere Reserve
Creators: name: Withyman, Cathie
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 350803
subject: Tourism management
classificationCode: 350701
subject: Corporate governance
classificationCode: 350711
subject: Organisational planning and management

description: Tourism is the world’s largest and fastest growing industry (UNWTO, 2012). It is a global phenomenon with widespread impacts that are both positive and negative. In this context, there is increasing pressure on tourism providers and destination managers to demonstrate sustainable practices and efforts to protect and conserve the natural environment upon which most tourism depends. Eco or sustainable certification has been highlighted as a key tool in sustainable tourism management (Bien, 2007; Font, 2009; Honey, 2008), but after nearly 30 years in the marketplace, uptake of certification remains low (Dodds & Joppe, 2009b). The aim of this research is to gain an insight into how sustainable tourism certification is currently viewed, implemented and promoted as a tourism management tool in a biosphere reserve setting. The case study setting of this research is Noosa Biosphere Reserve in Australia. One hundred tourism firms were surveyed and in-depth interviews were conducted to gain a comprehensive insight into the activity system of sustainable tourism certification. Cultural Historical Activity Theory was used as a methodological analysis framework to assist in the identification of expansive learning opportunities from the surfacing ‘tensions’ and ‘contradictions’. The study found that certification uptake is limited by internal and external constraints faced by the tourism operator. As well, the voluntary nature of certification coupled with an absence of leadership from destination management organisations and government, has compounded operator perception that certification is not a particularly valued sustainable development management tool. It emerged that the development and expansion of motivational drivers would be useful to encourage uptake of certification by tourism operators.
The rigid syntomic ring spectrum
Creators: name: Déglise, Frédéric
name: Mazzari, Nicola
Publisher: name: arXiv
Year: 2012
Subjects: subject: K-Theory and Homology (math.KT)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: The aim of this paper is to show that Besser syntomic cohomology is representable by a rational ring spectrum in the motivic homotopical sense. In fact, extending previous constructions, we exhibit a simple representability criterion and we apply it to several cohomologies in order to get our central result. This theorem gives new results for syntomic cohomology such as h-descent and the compatibility of cycle classes with Gysin morphisms. Along the way, we prove that motivic ring spectra induces a complete Bloch-Ogus cohomological formalism and even more. Finally, following a general motivic homotopical philosophy, we exhibit a natural notion of syntomic coefficients.
description: Final version to appear in the Journal de l'institut des Math\'ematiques de Jussieu. Many typos have been corrected and the exposition has been improved according to the suggestions of the referees: we thank them a lot!
Topological insulating phase arising in transition metal dichalcogenide alloy
Creators: name: de Lima, F. Crasto
name: Focassio, B.
name: Miwa, R. H.
name: Fazzio, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Transition metal dichalcogenides have been the subject of numerous studies addressing technological applications and fundamental issues. Single-layer PtSe2 is a semiconductor with a trivial bandgap, in contrast, its counterpart with 25% of Se atoms substituted by Hg, Pt2HgSe3 (jacutingaite, a naturally occurring mineral), is a 2D topological insulator with a large bandgap. Based on ab-initio calculations, we investigate the energetic stability, and the topological transition in Pt(HgxSe1-x)2 as a function of alloy concentration, and the distribution of Hg atoms embedded in the PtSe2 host. Our findings reveal the dependence of the topological phase with respect to the alloy concentration and robustness with respect distribution of Hg. Through a combination of our ab-initio results and a defect wave function percolation model, we estimate the random alloy concentration threshold for the topological transition to be only 9%. Our results expand the possible search for non-trivial topological phases in random alloy systems.
General-Relativistic Simulations of Three-Dimensional Core-Collapse Supernovae
Creators: name: Ott, C. D.
name: Abdikamalov, E.
name: Moesta, P.
name: Haas, R.
name: Drasco, S.
name: O'Connor, E.
name: Reisswig, C.
name: Meakin, C.
name: Schnetter, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the three-dimensional (3D) hydrodynamics of the post-core-bounce phase of the collapse of a 27-solar-mass star and pay special attention to the development of the standing accretion shock instability (SASI) and neutrino-driven convection. To this end, we perform 3D general-relativistic simulations with a 3-species neutrino leakage scheme. The leakage scheme captures the essential aspects of neutrino cooling, heating, and lepton number exchange as predicted by radiation-hydrodynamics simulations. The 27-solar-mass progenitor was studied in 2D by B. Mueller et al. (ApJ 761:72, 2012), who observed strong growth of the SASI while neutrino-driven convection was suppressed. In our 3D simulations, neutrino-driven convection grows from numerical perturbations imposed by our Cartesian grid. It becomes the dominant instability and leads to large-scale non-oscillatory deformations of the shock front. These will result in strongly aspherical explosions without the need for large-scale SASI shock oscillations. Low-l-mode SASI oscillations are present in our models, but saturate at small amplitudes that decrease with increasing neutrino heating and vigor of convection. Our results, in agreement with simpler 3D Newtonian simulations, suggest that once neutrino-driven convection is started, it is likely to become the dominant instability in 3D. Whether it is the primary instability after bounce will ultimately depend on the physical seed perturbations present in the cores of massive stars. The gravitational wave signal, which we extract and analyze for the first time from 3D general-relativistic models, will serve as an observational probe of the postbounce dynamics and, in combination with neutrinos, may allow us to determine the primary hydrodynamic instability.
description: 24 emulateapj pages, 15 figures. Accepted for publication in the Astrophysical Journal
Zero energy bound states in tunneling conductance spectra at the interface of an s-wave superconductor and a topological insulator in NbN-$Bi_2Se_3$-Au thin film junctions
Creators: name: Koren, Gad
name: Kirzhner, Tal
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Measurements of conductance spectra in a superconductor - topological insulator - normal metal thin film junctions of NbN-$\rm Bi_2Se_3$-Au are reported. Junctions with ex-situ and in-situ prepared $\rm NbN-Bi_2Se_3$ interfaces were studied. At low temperatures, all the ex-situ junctions showed coherence peaks in their conductance spectra, but imbedded robust zero bias conductance peaks were observed only in junctions with a metallic or a metal to insulator transition below $\rm T_c$ of the NbN electrode. The in-situ junctions which had about two orders of magnitude lower resistance at low temperatures, generally showed flat conductance spectra at low bias, with no coherence or broad Andreev peaks, since the critical current of the NbN electrode was reached first, at voltage bias below the energy gap of the superconductor. A weak zero bias conductance peak however, was observed in one of these junctions. We conclude that significant tunneling barriers, as in the ex-situ prepared junctions, are essential for the observation of coherence peaks and the zero energy bound states. The later seem to originate in the $\rm Bi_2Se_3$-NbN interface, as they are absent in reference Au-NbN junctions without the topological layer sandwiched in between.
description: Published version
A study to develop a policy planning strategy framework in gold market in Bangkok, Thailand
Creators: name: Manochantavanich, Kanokrat
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 440703
subject: Economic development policy
classificationCode: 350608
subject: Marketing theory

description: This research project proposes to develop a policy planning strategy framework for the gold market in Bangkok, Thailand. This thesis has identified not only a way to improve the efficiency and potential of the gold trading market, but also to fill the gap in knowledge that concerns the governance practices of the Sino-Thais who conduct business in the gold retail market. The gold retail market is called the ‘Throng Thu Dang’ (TTD). This retail gold market trading is the most popular type of trading for pure gold of 96.5%. It requires a revised plan to support current and future market problems. This paper also establishes the background and setting of the project including key definitions in the gold trading industry. It sets out the background and history of the Thai gold industry including the cooperation between the Native-Thai government and the Sino-Thai TTD shops. The Sino-Thai and Native-Thai culture that oversee the way business is managed, the lack of regulation and monitoring, the earning capacity of the goldsmiths and their improved employment prospects, the lack of global competitiveness and the lost opportunities to improve the Thai economy.
Study of strange quark density fluctuations in Au+Au Collisions at $\sqrt{s_{NN}}$ = 7.7-200 GeV from AMPT Model
Creators: name: Tariq, Junaid
name: Ikram, Sumaira
name: Ashraf, M. U.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The strangeness production is an important observable to study the QCD phase diagram. The yield ratios of strange quark can be helpful to search for the QCD critical end point (CEP) and/or first-order phase transition. In this work, we studied the production of $K^{\pm}$, $Ξ^-(\barΞ^{+})$, $ϕ$ and $Λ(\bar Λ)$ in {\auau} collisions at {\sqrtsNN} = 7.7, 11.5, 14.5, 19.6, 27, 39, 54.4, 62.4, and 200 GeV from A Multi-Phase Transport model with string melting version (AMPT-SM). We calculated the invariant yield of these strange hadrons using a different set of parameters compared to those reported in earlier studies and also by varying the hadronic cascade time ($t_{max}$) in the AMPT-SM model. We also calculated the yield ratios, $\mathcal{O}_{K^{\pm}-Ξ^{-}(\bar Ξ^{+})-ϕ-Λ(\bar Λ)}$ which are reported as sensitive to the strange quark density fluctuations and found that the AMPT-SM model fails to describe the non-monotonic trend observed by the experimental data. The negative particle ratio are found to be higher than the ratio of positive particles which is consistent with the experimental data. A significant effect is also seen on these ratios by varying the $t_{max}$. For a crossover transition between the Quark-Gluon Plasma (QGP) and hadronic matter, the double yield ratios considered in the present study based on AMPT-SM model do not show any non-monotonic behaviors and thus providing a baseline for the search of CEP, because there is no first-order or second-order phase transition in the AMPT model. The more realistic equation of state based dynamical modeling is still required for the heavy-ion collisions in order to extract the definite physics conclusion about the non-monotonic energy dependence behavior.
description: 8 pages, 2 figures
Improving predictability of time to harvest and yield of field grown tomato crops
Creators: name: Neupane, Tika
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 300408
subject: Crop and pasture post harvest technologies (incl. transportation and storage)
classificationCode: 300499
subject: Crop and pasture production not elsewhere classified

description: Accurate predictions of the timing of harvest and crop yield are of major benefit to large scale commercial tomato growers as they support efficient utilisation of resources and enable planting schedules to be managed so that there is a regular supply of product to the market. The predictive tools available to field tomato growers are limited as most tomato crop models have been developed for greenhouse conditions and indeterminate tomato cultivars. As the success of a crop yield forecasting system strongly depends on the crop simulation models ability to quantify the influence of weather and management practices on plant development, data describing effects of these factors on the key developmental events of flowering and fruit maturity are valuable. In this study the effects of a range of management factors and planting times on flowering and fruit maturation were assessed in field trials and commercial crops. Analysis of commercial crop data from 217 crops grown over three production seasons in the Bundaberg region in Queensland, Australia demonstrated the dominant effect of temperature on crop development and also identified differences in developmental rate due to soil type. Replicated field trials revealed a small but significant effect of crop pruning strategies on flowering time and harvest date. Varying the fruit load on plants pruned to produce different branching patterns induced no significant changes in the photosynthesis rate of the plants, indicating that plasticity in source sink relations exist with new shoots from the axils of the leaves replacing fruit as the major sink in plants with reduced fruit load. It was also observed that varying the branching patterns in field grown tomato had a significant impact on assimilate partitioning and that this response resulted in a significant branching pattern effect on harvesting date of the crops. The fruit maturation rate and first harvesting time of commercial field grown tomato was influenced by pruning strategy, with the optimum strategy being that which maintained a desired source-sink ratio of vegetative and reproductive sink organs for optimum yield of the crops. Base thermal time and seasonal pattern models for prediction of harvest date were developed that provided improved predictability over the current calendar date model used by industry. No adequate prediction of yield was achieved, and much more work is needed in identification of the key factors causing the very large crop to crop differences in yield in commercial production in the study location.
Cosmic Ray Electrons, Positrons and the Synchrotron emission of the Galaxy: consistent analysis and implications
Creators: name: Di Bernardo, Giuseppe
name: Evoli, Carmelo
name: Gaggero, Daniele
name: Grasso, Dario
name: Maccione, Luca
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A multichannel analysis of cosmic ray electron and positron spectra and of the diffuse synchrotron emission of the Galaxy is performed by using the DRAGON code. This study is aimed at probing the interstellar electron source spectrum down to E ~ 1 GeV and at constraining several propagation parameters. We find that above 4 GeV the electron source spectrum is compatible with a power-law of index -2.5. Below 4 GeV instead it must be significantly suppressed and the total lepton spectrum is dominated by secondary particles. The positron spectrum and fraction measured below a few GeV are consistently reproduced only within low reacceleration models. We also constrain the scale-height zt of the cosmic-ray distribution using three independent (and, in two cases, original) arguments, showing that values of z_t < 2 kpc are excluded. This result may have strong implications for particle dark matter searches.
description: 21 pages, 9 figures, 3 tables; accepted for publication in JCAP
The splitting lemmas for nonsmooth functionals on Hilbert spaces I
Creators: name: Lu, Guangcun
Publisher: name: arXiv
Year: 2012
Subjects: subject: Functional Analysis (math.FA)
subject: Analysis of PDEs (math.AP)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: Primary 58E05, 49J52, 49J45

description: The Gromoll-Meyer's generalized Morse lemma (so called splitting lemma) near degenerate critical points on Hilbert spaces, which is one of key results in infinite dimensional Morse theory, is usually stated for at least $C^2$-smooth functionals. It obstructs one using Morse theory to study most of variational problems of form $F(u)=\int_Ωf(x, u,..., D^mu)dx$ as in (\ref{e:1.1}). In this paper we establish a splitting theorem and a shifting theorem for a class of continuously directional differentiable functionals (lower than $C^1$) on a Hilbert space $H$ which have higher smoothness (but lower than $C^2$) on a densely and continuously imbedded Banach space $X\subset H$ near a critical point lying in $X$. (This splitting theorem generalize almost all previous ones to my knowledge). Moreover, a new theorem of Poincaré-Hopf type and a relation between critical groups of the functional on $H$ and $X$ are given. Different from the usual implicit function theorem method and dynamical system one our proof is to combine the ideas of the Morse-Palais lemma due to Duc-Hung-Khai \cite{DHK} with some techniques from \cite{JM, Skr, Va1}. Our theory is applicable to the Lagrangian systems on compact manifolds and boundary value problems for a large class of nonlinear higher order elliptic equations.
description: 68 pages; v2: for the published version we correct a few typo and state Theorems A.1, A.2 in a more precise way
A Novel clustering and neural based technique for segmentation and classification of road objects
Creators: name: Kinattukara Jobachan, Tejy
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 460306
subject: Image processing

description: The segmentation and classification of roadside objects is important for road maintenance and road safety. Many road safety reports and research papers show that the majority of road fatalities are from hit objects, head on collisions and angle type crashes. Many such fatalities can be avoided if the risk factors involved are identified earlier and fixed suitably. As a result, it is quite imperative to develop advanced segmentation as well as classification techniques to identify different road objects in order to create safer roads.
Transition from chimera/solitary states to traveling waves
Creators: name: Rybalova, Elena
name: Muni, Sishu
name: Strelkova, Galina
Publisher: name: arXiv
Year: 2022
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study numerically the spatiotemporal dynamics in a ring network of nonlocally coupled nonlinear oscillators, each represented by a two-dimensional discrete-time model of the classical van der Pol oscillator. It is shown that the discretized oscillator exhibits a richer behavior, combining the peculiarities of both the original system and its own dynamics. Moreover, a large variety of spatiotemporal structures is observed in the network of discrete van der Pol oscillators when the discretization parameter and the coupling strength are varied. Regimes such as the coexistence of multichimera state/traveling wave and solitary state are revealed for the first time and are studied in detail. It is established that the majority of the observed chimera/solitary states, including the newly found ones, are transient towards the purely traveling wave mode. The peculiarities of the transition process and the lifetime (transient duration) of the chimera structures and the solitary state are analyzed depending on the system parameters, the observation time, initial conditions, and the influence of external noise.
description: 16 pages, 16 figures
A non-classical van der Waals loop: Collective variables method
Creators: name: Romanik, R. V.
name: Kozlovskii, M. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The equation of state is investigated for an Ising-like model in the framework of collective variables method. The peculiar feature of the theory is that a non-classical van der Waals loop is extracted. The results are compared with the ones of a trigonometric parametric model in terms of normalized magnetization, \tilde{M}, and field, \tilde{H}.
description: 9 pages, 2 figures
Injective hulls of simple modules over differential operator rings
Creators: name: Carvalho, Paula A. A. B.
name: Hatipoglu, Can
name: Lomp, Christian
Publisher: name: arXiv
Year: 2012
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16P40, 16W20, 16S15, 16D50

description: We study injective hulls of simple modules over differential operator rings $R[θ; d]$, providing necessary conditions under which these modules are locally Artinian. As a consequence we characterize Ore extensions of $S=K[x][θ;σ, d]$ for $d$ a $K$-linear derivation and $σ$ a $K$-linear automorphism of $K[x]$ such that injective hulls of simple $S$-modules are locally Artinian.
description: revised version
Data Sharing for Energy Modelling
Creators: name: Jones, Catherine
name: Newbold, Elizabeth
name: Yates, Katie
name: Zoldoske, Teagan
name: Boston, Andy
name: Colechin, Mike
name: Colechin, Keelan
name: Davidson, Joy
name: Lines, Clara
name: Jasinska, Agnes
Publisher: name: UKERC
Year: 2025

description: This report presents an analysis of the barriers to data sharing identified by participants of the data sharing for energy modelling workshop, using the DINI barriers and FAIR (Findable, Accessible, Interoperable and Reusable) approach to make a set of recommendations to address those barriers.
Energy research is multi-disciplinary, so there are different expectations, domain standards and cross-over terminology which makes the sharing of data a challenge, especially for models which focus on whole systems analysis. The participants highlighted the importance of community building and knowledge sharing.
The energy sector, both research and operational, is a heavy user of energy models and there is overlap in input data requirements for these models which is reflected in some of the commercial and legal barriers identified.
A particular feature for modelling in this domain is the consideration of the timescales being modelled. It is common for models to address the next 30-50 years. Physical power assets have a decades long lifespan, but new types of assets are coming on stream while old things disappear. So, models need to consider how to deal with both old assets and incorporating new technologies which means that resources need to be invested to keep models active and relevant.
Chicago On the Aisle: Claudia Cassidy's Music Criticism and Legacy
Creators: name: Edgar, Hannah
Publisher: name: University of Chicago
Year: 2018
Subjects: subject: Claudia Cassidy
subject: music
subject: Chicago Tribune
subject: music criticism

description: For most of her life, Claudia Cassidy (1899–1996) was Chicago’s most prolific and widely read critic, and, as this paper argues, one of the most influential arts critics of the twentieth century. She began her career at the Chicago Journal of Commerce (1924–1941), moving from there to the Chicago Sun (1941–42) and then to the Chicago Tribune (1942–65), where she reached the height of her influence. After leaving the Tribune, Cassidy wrote for numerous local and national publications as a critic-at-large. In total, her career spanned five beats (music, theater, dance, books, and film), two continents (North America and Europe), and nearly seven decades, giving her a uniquely privileged vista of the twentieth century’s performing arts. Despite this, Cassidy has been largely neglected in academia and greater discourses about American arts criticism since her death. This paper launches the first analysis of the legacy and local impact of Cassidy’s music criticism, positing Cassidy’s ability to reach wide audiences at the Tribune, her colorful writing style, and advocacy for Chicago’s arts as primary factors in her rise. By consulting oral histories and personal correspondences, as well as Cassidy’s own work, this paper also disentangles the complexities of Cassidy’s legacy, addressing assertions made against her: for example, that she was guilty of gross conflicts of interest, that she was musically naïve, and that her criticism was especially vitriolic. Specific episodes in Cassidy’s career are addressed as touchstones, including her involvement with Lyric Opera as it reemerged from the rhetorical ashes in the 1950s, her varying approval of CSO leadership, and her departure from WFMT after general director Norm Pellegrini threatened to dismiss her over her CSO coverage. These conflicts are foregrounded to highlight Cassidy’s unique influence on local institutions.
Controlling and reversing the transition from classical diffusive to quantum ballistic transport in a quantum walk by driving the coin
Creators: name: Xue, Peng
name: Sanders, Barry C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that the standard quantum-walk quantum-to-classical transition, characterized by ballistic-to-diffusive spreading of the walker's position, can be controlled by externally modulating the coin state. We illustrate by showing an oscillation between classical diffusive and quantum ballistic spreading using numerical and asymptotically exact closed-form solutions, and we prove that the walker is in a controllable incoherent mixture of classical and quantum walks with a reversible quantum-to-classical transition.
description: 7 pages, 6 figures
Technology development for sustainable use of stormwater using numerical modelling
Creators: name: Akram, Fatema
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 400513
subject: Water resources engineering

description: Runoff estimation is very important for adequate management of stormwater; however runoff assessment is not simple for those catchments where there is a lack of data. Australian Rainfall and Runoff recommended several methods for estimating runoff which are explicitly suitable for particular regions of Australia. Unfortunately there is no regional equation available specifically for Queensland. Moreover, stream gauges in Australian catchments are relatively sparse, and many catchments are crisscrossed by numerous rivers. This study attracted the author’s attention because it was viewed as essential in the Australian context to have a reliable methodology for estimating runoff from ungauged catchments. The main aim of this study is to develop a technology for reusing stormwater for irrigation purposes, especially in an ungauged catchment. This study presents a new approach for stormwater runoff quantification from an ungauged catchment where there is no regional equation available, through developing a hydrologic-hydraulic integrated model, applying Geographical Information Systems (GIS) and numerical modelling techniques. Using the simulated stormwater runoff, the necessary stormwater pond volume is calculated and a typical design of pond is suggested to reuse the stored stormwater for irrigation purposes of a case study area.
Constraining solar hidden photons using HPGe detector
Creators: name: Horvat, R.
name: Kekez, D.
name: Krcmar, M.
name: Krecak, Z.
name: Ljubicic, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this Letter we report on the results of our search for photons from a U(1) gauge factor in the hidden sector of the full theory. With our experimental setup we observe the single spectrum in a HPGe detector arising as a result of the photoelectric-like absorption of hidden photons emitted from the Sun on germanium atoms inside the detector. The main ingredient of the theory used in our analysis, a severely constrained kinetic mixing from the two U(1) gauge factors and massive hidden photons, entails both photon into hidden state oscillations and a minuscule coupling of hidden photons to visible matter, of which the latter our experimental setup has been designed to observe. On a theoretical side, full account was taken of the effects of refraction and damping of photons while propagating in Sun's interior as well as in the detector. We exclude hidden photons with kinetic couplings chi > (2.2 x 10^{-13}- 3 x 10^{-7}) in the mass region 0.2 eV < m_gamma' < 30 keV. Our constraints on the mixing parameter chi in the mass region from 20 eV up to 15 keV prove even slightly better then those obtained recently by using data from the CAST experiment, albeit still somewhat weaker than those obtained from solar and HB stars lifetime arguments.
description: elsarticle style, 3 eps figures, 4 pages, version published in Phys. Lett. B
A new formulation of general-relativistic hydrodynamic equations using primitive variables
Creators: name: Servignat, Gaël
name: Novak, Jerome
name: Cordero-Carrión, Isabel
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present the derivation of hydrodynamical equations for a perfect fluid in General Relativity, within the 3+1 decomposition of spacetime framework, using only primitive variables. Primitive variables are opposed to conserved variables, as defined in the widely used Valencia formulation of the same hydrodynamical equations. The equations are derived in a covariant way, so that they can be used to describe any configuration of the perfect fluid. Once derived, the equations are tested numerically. We implement them in an evolution code for spherically symmetric self-gravitating compact objects. The code uses pseudospectral methods for both the metric and the hydrodynamics. First, convergence tests are performed, then the frequencies of radial modes of polytropes are recovered with and without the Cowling approximation, and finally the performance of our code in the black hole collapse and migration tests are described. The results of the tests and the comparison with a reference corecollapse and neutron star oscillations code suggests that not only our code can handle very strong gravitational fields, but also that this new formulation helps gaining a significant amount of computational time in hydrodynamical simulations of smooth flows in General Relativity.
Corresponding Active Orbital Spaces along Chemical Reaction Paths
Creators: name: Bensberg, Moritz
name: Reiher, Markus
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The accuracy of reaction energy profiles calculated with multi-configurational electronic structure methods and corrected by multi-reference perturbation theory depends crucially on consistent active orbital spaces selected along the reaction path. However, it has been challenging to choose molecular orbitals that can be considered corresponding in different molecular structures. Here, we demonstrate how active orbital spaces can be selected consistently along reaction coordinates in a fully automated way. The approach requires no structure interpolation between reactants and products. Instead, it emerges from a synergy of the Direct Orbital Selection orbital mapping ansatz combined with our fully automated active space selection algorithm autoCAS. We demonstrate our algorithm for the potential energy profile of the homolytic carbon-carbon bond dissociation and rotation around the double bond of 1-pentene in the electronic ground state. However, our algorithm also applies to electronically excited Born-Oppenheimer surfaces.
description: 18 pages, 5 figures
The VMC Survey - VI. Quasars behind the Magellanic system
Creators: name: Cioni, M. -R. L.
name: Kamath, D.
name: Rubele, S.
name: van Loon, J. Th.
name: Wood, P. R.
name: Emerson, J. P.
name: Gibson, B. K.
name: Groenewegen, M. A. T.
name: Ivanov, V. D.
name: Miszalski, B.
name: Ripepi, V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The number and spatial distribution of confirmed quasi-stellar objects (QSOs) behind the Magellanic system is limited. This undermines their use as astrometric reference objects for different types of studies. We have searched for criteria to identify candidate QSOs using observations from the VISTA survey of the Magellanic Clouds system (VMC) that provides photometry in the YJKs bands and 12 epochs in the Ks band. The (Y-J) versus (J-Ks) diagram has been used to distinguish QSO candidates from Milky Way stars and stars of the Magellanic Clouds. Then, the slope of variation in the Ks band has been used to identify a sample of high confidence candidates. These criteria were developed based on the properties of 117 known QSOs presently observed by the VMC survey. VMC YJKs magnitudes and Ks light-curves of known QSOs behind the Magellanic system are presented. About 75% of them show a slope of variation in Ks>10^-4 mag/day and the shape of the light-curve is in general irregular and without any clear periodicity. The number of QSO candidates found in tiles including the South Ecliptic Pole and the 30 Doradus regions is 22 and 26, respectively, with a ~20% contamination by young stellar objects, planetary nebulae, stars and normal galaxies. By extrapolating the number of QSO candidates to the entire VMC survey area we expect to find about 1200 QSOs behind the LMC, 400 behind the SMC, 200 behind the Bridge and 30 behind the Stream areas, but not all will be suitable for astrometry. Further, the Ks band light-curves can help support investigations of the mechanism responsible for the variations.
description: 17 pages, 15 figures, replaced with accepted version by Astronomy & Astrophysics
Tunneling wavefunction proposal with loop quantum geometry effects
Creators: name: Motaharfar, Meysam
name: Singh, Parampreet
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In Vilenkin's tunneling wavefunction proposal our expanding universe is born via a tunneling through a barrier from nothing at the zero scale factor. We explore the viability of this proposal for the spatially closed FLRW model with a positive cosmological constant including quantum gravity modifications in the Planck regime. Our setting is the effective spacetime description of loop quantum cosmology (LQC) which is known to replace the big bang singularity with a bounce due to the holonomy modifications. Due to the bounce, the barrier potential of the Wheeler-DeWitt theory is replaced by a step like potential which makes the tunneling proposal incompatible. But for a complete picture of singularity resolution, inverse scale factor modifications from quantum geometry must be included which play an important role at very small scale factors in the spatially closed models. We show that with inclusion of inverse scale factor modifications the resulting potential is again a barrier potential. The universe at the vanishing scale factor is dynamically non-singular and in an Einstein static like phase. We show that quantum geometric effects in LQC provide a non-singular completion of Vilenkin's tunneling proposal. We also find that quantum geometric effects result in a possibility of a tunneling to a quantum cyclic universe albeit for a very large value of cosmological constant determined by the quantum geometry.
description: 19 pages, 6 figures. Expanded discussion on validity of effective approach. References added. Published version in PRD
Smooth parametric dependence of asymptotics of the semiclassical focusing NLS
Creators: name: Belov, Sergey
name: Venakides, Stephanos
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider the one dimensional focusing (cubic) Nonlinear Schrödinger equation (NLS) in the semiclassical limit with exponentially decaying complex-valued initial data, whose phase is multiplied by a real parameter. We prove smooth dependence of the asymptotic solution on the parameter. Numerical results supporting our estimates of important quantities are presented.
description: 28 pages, 4 figures
The effect of different intensities of physical activity and diet on cardiometabolic markers, cardiac and vascular function, and gut microbiota
Creators: name: Batacan, Romeo
Publisher: name: CQUniversity
Year: 2023
Subjects: classificationCode: 420702
subject: Exercise physiology

description: Cardiometabolic disorder (CMD) has progressively become a global public health concern because of its association with increased risk of developing cardiovascular disease (CVD) and diabetes. Recent studies suggest that light-intensity training (LIT) and high-intensity interval training (HIIT) can induce physiological adaptations that may reduce CMD risk whilst sedentary behaviour has been reported to increase CMD risk. However, the exact cardiometabolic consequences of sedentary behaviour, LIT and HIIT, and the underlying mechanisms behind the distinct health outcomes they produce remains to be elucidated.
￼How Are Model Limitations And Uncertainties Are Assessed And Used To Decide When To Shift To High Fidelity Models
Creators: name: Réthoré, Pierre-Elouan
Publisher: name: Zenodo
Year: 2015
Subjects: multi-fidelity
wind farm flow models
A2E

description: Presentation on which models to select and when to run them. Higher fidelity models (HFM) can be orders of magnitude more expensive than lower fidelity models (LFM), so it ends up being a trade-off between accuracy and computational expenses (and simulation time). This presentation presents this problem, from the perspective of wind farm flow models. It touches the challenges of comparing models together, agains data, UQ and finally multi-fidelity.

This presentation took place at the A2E workshop on Wind-Plant System Design and Analysis, January 16 2015 at NREL NWTC.
Using Active Learning Methods to Strategically Select Essays for Automated Scoring
Creators: name: Firoozi, Tahereh
name: Mohammadi, Hamid
name: Gierl, Mark J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Research on automated essay scoring has become increasing important because it serves as a method for evaluating students' written-responses at scale. Scalable methods for scoring written responses are needed as students migrate to online learning environments resulting in the need to evaluate large numbers of written-response assessments. The purpose of this study is to describe and evaluate three active learning methods than can be used to minimize the number of essays that must be scored by human raters while still providing the data needed to train a modern automated essay scoring system. The three active learning methods are the uncertainty-based, the topological-based, and the hybrid method. These three methods were used to select essays included as part of the Automated Student Assessment Prize competition that were then classified using a scoring model that was training with the bidirectional encoder representations from transformer language model. All three active learning methods produced strong results, with the topological-based method producing the most efficient classification. Growth rate accuracy was also evaluated. The active learning methods produced different levels of efficiency under different sample size allocations but, overall, all three methods were highly efficient and produced classifications that were similar to one another.
Managing and sharing multidisciplinary information in human-environment observatories: feedbacks and recommendations from the French DRIIHM network
Creators: name: ARNAUD, Fanny
name: LERIGOLEUR, Emilie
name: JEAN-CHARLES, Arnaud
name: LE BERRE, Iwan
name: PARDO, Corinne
name: RAYNAL, Jean-Claude
name: FOZZANI, Jérôme
name: MICHEL, Kristell
name: APERS-TREMELO, Marie-Laure
name: ROUX-MICHOLLET, Dad
Publisher: name: Journal of Interdisciplinary Methodologies and Issues in Science (JIMIS) - CNRS-Episciences-ESPACE-Agorantic
Year: 2020
Subjects: Research Data Infrastructure
Human-Environment Observatories
Multidisciplinarity
FAIR data

description: The LabEx DRIIHM is a research network that gathers together 13 Human-Environment Observatories (OHM) focused on anthropogenically modified socio-ecosystems in France and worldwide. Within the open science context, a Research Data Infrastructure (RDI) was implemented brick by brick to describe, visualize, and disseminate multidisciplinary long-tail datasets produced by the DRIIHM community. The RDI contains both tools and standards at the network scale, and specific tools at the individual observatory scale. This paper describes the building blocks of the RDI and analyses its strengths and challenges on the basis of engineer feedback and user surveys. Recommendations for improving the RDI, better measuring its effectiveness, and enhancing open science awareness, have been formalized for the SO-DRIIHM project that will start in 2020. Cross-disciplinary approaches using DataViz tools have emerged already, and these enrich the way in which scientific information is disseminated, and could raise new scientific issues.