cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Some effects of low, non-freezing temperatures on plants
Creators: name: Gallopin, Isabel Gomez
Publisher: name: University of British Columbia
Year: 2011

description: Low, non-freezing temperatures can cause both, harmful and beneficial effects on plants, and this research was carried out to survey some effects on starch and pigment accumulation. Four species were selected on the basis of photosynthetic biochemistry and major systematic grouping. Zea and Gomphrena possess the C₄-dicarboxylic acid pathway typical of certain families of tropical origin, while Triticum and Phaseolus contain the Calvin cycle alone which is typical of plants originating in temperate regions. Zea and Triticum are Monocotyledoneae while Gomphrena and Phaseolus are members of the Dicotyledoneae. Plants of each species were subjected to 10 days of cold treatment starting when they were 10, 21 or 35 days old (15, 26 and 40 days old for Gomphrena), and spectrophotometry measurements of starch, chlorophylls a and b, and carotenoids were carried out during the treatments. The effects of cold temperature depended on species, age, and duration of treatment. All of the species exhibited a significantly higher level of starch in the cold temperature for at least two of the three ages tested. The most dramatic effect of low temperature occurred in Gomphrena when the starch concentration increased to over 2000 per cent of the concentration attained at the warm temperature. Variations in the effect of cold treatment between the different ages tested were more pronounced in the monocots used than in the dicot species studied and variations due to the duration of cold treatment were observed in Gomphrena and Triticum. Cold treatment also caused significant reduction in total chlorophylls, chlorophyll a and chlorophyll b in all the species except Triticum. In Zea, the response to cold decreased as the plants aged, and the duration of cold treatment had a significant effect in Zea and Gomphrena. When the youngest plants only are considered, the response of starch and chlorophyll levels to cold treatment was well correlated with the typical photosynthetic pathway of the species tested. Low temperature had no significant effect on total carotenoid concentration .The effect of low temperature on light transmission by young Zea leaves during the first 48 hours of greening was also examined. Chlorophyll a concentration and leaf light transmission were highly correlated and the more convenient transmission measurements can therefore be used to predict leaf chlorophyll concentration. At the warm temperature used, there was a linear increase in chlorophyll concentration after a 2 hour lag period. Preceding cold treatment caused a longer lag period before chlorophyll began to accumulate at the warm temperature. Also, no chlorophyll accumulated, or there was net chlorophyll breakdown at low temperature. Kinetin treatment did not prevent the decrease in chlorophyll concentration at the low temperature.
Internet voting protocol based on implicit data security
Creators: name: Parakh, Abhishek
name: Kak, Subhash
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: This paper presents a new protocol for Internet voting based on implicit data security. This protocol allows recasting of votes, which permits a change of mind by voters either during the time window over which polling is open or during a shorter period over which recasting is permitted. The security of votes depends on multiple servers such that each vote is divided into partitions and these partitions are distributed among the servers, all of which need to be brought together to reconstruct the votes. Such a protocol has potential applications in bargaining and electronic commerce.
description: 4 pages
ψ₉₄–ψ₂₀₀: How the World Emerges. The Cycle of Differences and the Architecture of Creation
Creators: name: Yulia, Logacheva
Publisher: name: Zenodo
Year: 2025
Subjects: ψ-theory, ontological difference, world genesis, living zero, time topology, ψ-gravity, ψ-structure, fluctuation, crystallization, philosophical cosmology, emergence, onto-cosmology, phase architecture, structural metaphysics, ψ₉₄–ψ₂₀₀

description: This work presents the central arc of ψ-theory, revealing how the world emerges through a rigorous structure of difference. Beginning with ψ₉₄ as the implantation of the “living zero” and culminating in ψ₂₀₀ as a closed organism of differentiated being, the article constructs a triadic architecture of fluctuation, generation, and crystallization. Theoretical physics, mathematics, and metaphysics are integrated into a unified ontological model where time, gravity, and form are not primordial entities but consequences of ψ-differentiation.

A new formula of time as the derivative of differential density, a model of ψ-gravity as attraction toward minimal differentiation, and a topological logic of phases are proposed. The ψ₉₄–ψ₂₀₀ structure is shown to be the genesis mechanism of the universe—an architecture, not of matter, but of becoming itself. This foundational document introduces a new onto-cosmology and offers a language for the emergence of worl
Development of vaccine platforms for membrane display of surface antigens using HIV-1 Env as model immunogen
Creators: name: Aldon, Yoann Leopold Thomas
Publisher: name: Imperial College London
Year: 2019

description: The HIV-1 pandemic remains a major public health concern worldwide with over 1.5 million new infections every year. Despite the many effective prevention tools now available, access to treatment and implementations of these tools are proving difficult. Thus, developing an effective vaccine to prevent HIV-1 transmission remains of upmost importance. To date, HIV-1 vaccines failed to induce robust protective immunity and prophylactic vaccines that will elicit long-lasting protective immune responses still remain to be developed. The HIV-1 Envelope glycoprotein (Env) has been the main target of immunogen design with the aim of inducing neutralizing antibodies. In order to cover Env diversity, prophylactic vaccines are expected to induce broadly neutralizing antibodies (bNAbs). This will likely require Env trimers that limit exposure of non-neutralizing antibody (nNAb) epitopes within stabilized closed pre-fusion Envs that exhibit bNAb epitopes. In this thesis, an iterative design process generated membrane-bound Env immunogens that present stabilized native-like trimers. This ultimately resulted in the ConSOSL.UFO.750 trimer that preferentially binds quaternary-specific bNAbs relative to nNAbs. Further characterization of the soluble ConSOSL.UFO.664 confirmed presentation of a closed pre-fusion native-like structure. Immunogenicity studies demonstrated that ConSOSL.UFO.664 can induce autologous Tier 2 neutralization in rabbits and showed that ConSOSL.UFO.750 can modulate the T helper response in a mouse model. To improve the potential of the membrane-bound designs to induce relevant immune responses, virus-like particles (VLPs) based on Mumps and PIV5 pseudotyping were developed. These VLPs displayed Env immunogens and were able to modulate the immune response by intrastructural help in mice. Work presented in this thesis shows the successful design of immunogens that preserve the pre-fusion native-like structure of Env, amenable to various vaccination platforms. The ConSOSL.UFO design has now been moved into phase I clinical trial within the EAVI2020 consortium which will provide critical information for the development of an effective vaccine.
Higher Dimensional Charged Rotating Dilaton Black Holes
Creators: name: Sheykhi, A.
name: Allahverdizadeh, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we present the metric for the $n$-dimensional charged slowly rotating dilaton black hole with $N = [(n -1)/2]$ independent rotation parameters, associated with $N$ orthogonal planes of rotation in the background of asymptotically flat and asymptotically (anti)-de Sitter spacetime. The mass, angular momentum and the gyromagnetic ratio of such a black hole are determined for the arbitrary values of the dilaton coupling constant. We find that the gyromagnetic ratio crucially depends on the dilaton coupling constant, $α$, and decreases with increasing $α$ in any dimension.
description: 15 pages, 1 figure
Inclusive rates from smeared spectral densities in the two-dimensional O(3) non-linear $\sigma$-model
Creators: name: Bulava, John
name: Hansen, Maxwell T.
name: Hansen, Michael W.
name: Patella, Agostino
name: Tantalo, Nazario
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2021
Subjects: density: spectral
width: finite
finite size: effect
density: correlation function
dimension: 2
current: conservation law
O(3)
sigma model: nonlinear
quantum chromodynamics
Euclidean
lattice
lattice field theory
statistical
continuum limit
energy dependence
hadron
Monte Carlo

description: This work employs the spectral reconstruction approach of Ref. [1] to determine an inclusive rate in the $1+1$ dimensional O(3) non-linear $\sigma$-model, analogous to the QCD part of ${e}^+{e}^- \rightarrow \rm {hadrons}$. The Euclidean two-point correlation function of the conserved current $j$ is computed using Monte Carlo lattice field theory simulations for a variety of spacetime volumes and lattice spacings. The spectral density of this correlator is related to the inclusive rate for $j \rightarrow {\rm X}$ in which all final states produced by the external current are summed. The ill-posed inverse problem of determining the spectral density from the correlation function is made tractable through the determination of smeared spectral densities in which the desired density is convolved with a set of known smearing kernels of finite width $\epsilon$. The smooth energy dependence of the underlying spectral density enables a controlled $\epsilon \to 0$ extrapolation in the inelastic region, yielding the real-time inclusive rate without reference to individual finite-volume energies or matrix elements. Systematic uncertainties due cutoff effects and residual finite-volume effects are estimated and taken into account in the final error budget. After taking the continuum limit, the results are consistent with the known analytic rate to within the combined statistical and systematic errors. Above energies where 20-particle states contribute, the overall precision is sufficient to discern the four-particle contribution to the spectral density.
Recovery of chaotic tunneling due to destruction of dynamical localization by external noise
Creators: name: Ishikawa, Akiyuki
name: Tanaka, Atushi
name: Shudo, Akira
Publisher: name: arXiv
Year: 2009
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum tunneling in the presence of chaos is analyzed, focusing especially on the interplay between quantum tunneling and dynamical localization. We observed flooding of potentially existing tunneling amplitude by adding noise to the chaotic sea to attenuate the destructive interference generating dynamical localization. This phenomenon is related to the nature of complex orbits describing tunneling between torus and chaotic regions. The tunneling rate is found to obey a perturbative scaling with noise intensity when the noise intensity is sufficiently small and then saturate in a large noise intensity regime. A relation between the tunneling rate and the localization length of the chaotic states is also demonstrated. It is shown that due to the competition between dynamical tunneling and dynamical localization, the tunneling rate is not a monotonically increasing function of Planck's constant. The above results are obtained for a system with a sharp border between torus and chaotic regions. The validity of the results for a system with a smoothed border is also explained.
description: 14 pages, 15 figures
Non-leptonic charmless Bc decays and their search at LHCb
Creators: name: Descotes-Genon, Sebastien
name: He, Jibo
name: Kou, Emi
name: Robbe, Patrick
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the decay of Bc mesons into two light mesons (pi, K^(*), eta', rho, omega, phi). All these decay channels come from a single type of diagram, namely tree annihilation. This allows us to derive extremely simple SU(3) relations among these processes. The size of annihilation contributions is an important issue in B physics, and we provide two different estimates in the case of non-leptonic charmless Bc decays, either a comparison with annihilation decays of heavy-light mesons or a perturbative model inspired by QCD factorisation. We finally discuss a possible search for these channels at LHCb.
description: 22 pages, 1 figure
Geometallurgical mapping and mine modelling - comminution studies: La Colosa Case Study, AMIRA P843A
Creators: name: Montoya Lopera, PA
Publisher: name: University Of Tasmania
Year: 2023

description: La Colosa is a world-class porphyry gold (Au) project located in Colombia, currently undergoing pre-feasibility analysis. As part of collaboration between AngloGold Ashanti and the AMIRA P843A GeMIII Project, the application of emerging geometallurgical characterisation testing and modelling tools has been incorporated into the early stages of project development. The aim of the geometallurgical study is to map inherent comminution variability across the La Colosa deposit providing information critical for mine/mill design and optimisation. In this study, site-based data incorporating 17,505 multi-element assays, 275 QXRD bulk mineralogy measurements, 15,195 EQUOtip rebound hardness values, 9015 sonic velocity measurements, 16,676 density measurements and routine geological logging information from 92 diamond drill holes has been integrated with a range of geometallurgical comminution tests (i.e. 155 A*b values and 151 BMWi values). The thesis demonstrates the integration techniques used at La Colosa to link routine data acquisition methods with comminution test results through the development of proxy support models. The integration incorporates a range of statistical techniques including principal component analysis, regression modelling and geostatistics. By creating proxy models, comminution index estimates can be propagated into the geological database enabling comminution processing domains to be defined. These domains provide the first spatial representation of comminution performance and variability at La Colosa and these can be compared with traditional geological domains. In general, the comminution hardness of the rocks is related to proximity to structural corridors (trending 350), to topographic surface and the western contact between intramineral diorite and hornfels. The study shows that, overall, La Colosa rocks are intermediate to hard in terms of crushing and grinding. Seven hardness domains were identified for crushing and seven for grinding. This study will provide the foundation for ongoing comminution characterisation as the La Colosa project evolves through project cycles into an operational mine.
ANIMA D3.5 - Tool suite mobile application
Creators: name: Marki, Ferenc
Publisher: name: Zenodo
Year: 2022

description: Deliverable for acting the release of the ANIMA mobile application (officially called Anima Research, nicknamed by AnimApp)
description: This ANIMA deliverable was initially set confidential further to the project's Grant Agreement. After screening, the Management Team decided to turn it public.
Phase Behavior of Propane and Propene Hydrates
Creators: name: Thompson, Russell Albert, Jr.
Publisher: name: California Institute of Technology
Year: 1947
Subjects: subject: Chemical Engineering
subject: FOS: Chemical engineering
subject: (Chemical Engineering)

description: The compositions of propane, propene, and propane-propene
hydrates varied from 5 to 15 mols of water per mol of
hydrocarbon. No appreciable separation of the propene from the
propane was found between the excess liquid hydrocarbon phase
and the hydrate phase. These facts represent the results of
twenty experiments at 400 psia and 33 - 39° F.

While the variations in apparent compositions are over
one hundred times the experimental error as demonstrated by
material balances, no theoretical explanation is offered to
interpret this behavior.
The covalent bond in Particle Spectroscopy
Creators: name: Bugg, D. V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: It is proposed that meson resonances are linear combinations of q-qbar and meson-meson (MM); baryon resonances are combinations of qqq and meson-baryon (MB). Mixing between these combinations arises via decays of confined states to meson-meson or meson-baryon. There is a precise analogy with the covalent bond in molecular physics; it helps to visualise what is happening physically. One eigenstate is lowered by the mixing; the other moves up and normally increases in width. Cusps arise at thresholds. At sharp thresholds due to S-wave 2-particle decays, these cusps play a conspicuous role in many sets of data.
description: 11 pages, 2 figures; extended version of a talk at the Hadron09 conference
Towards U-statistics clustering inference for multiple groups
Creators: name: Bello, Debora Zava
name: Valk, Marcio
name: Cybis, Gabriela Bettella
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology

description: Inference in clustering is paramount to uncovering inherent group structure in data. Clustering methods that assess statistical significance have recently drawn attention due to their role in identifying patterns in high-dimensional data with applications in many scientific fields. Towards developing a general framework for clustering in multiple groups, we present here a U-statistics-based approach, specially tailored for high-dimensional datasets, that clusters the data into three groups while assessing the significance of such partitions. We also consider theoretical aspects of allowing for an outlier group. Our approach stands on the U-statistics-based clustering framework of the methods in R package uclust and inherits its properties being a non-parametric method relying on very few assumptions about the data. Thus it can be applied to a wide range of datasets. Furthermore our method aims to be a statistically powerful tool to find the best partitions of the data into three groups when that particular structure is present. To do so, we first propose an extension of the test U-statistic and develop its asymptotic theory. Additionally we propose a ternary non-nested significance clustering method. Our approach is tested through multiple simulations and is shown to be comparable or have more statistical power to competing alternatives in all scenarios considered. An application to image recognition data showcases our method.
Hot subdwarf binaries - Masses and nature of their heavy compact companions
Creators: name: Geier, Stephan
name: Heber, Uli
name: Edelmann, Heinz
name: Kupfer, Thomas
name: Napiwotzki, Ralf
name: Podsiadlowski, Philipp
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Neutron stars and stellar-mass black holes are the remnants of massive stars, which ended their lives in supernova explosions. These exotic objects can only be studied in relatively rare cases. If they are interacting with close companions they become bright X-ray sources. If they are neutron stars, they may be detected as pulsars. Only a few hundred such systems are presently known in the Galaxy. However, there should be many more binaries with basically invisible compact objects in non-interacting binaries. Here we report the discovery of unseen compact companions to hot subdwarfs in close binary systems. Hot subdwarfs are evolved helium-core-burning stars that have lost most of their hydrogen envelopes, often due to binary interactions. Using high-resolution spectra and assuming tidal synchronisation of the subdwarfs, we were able to constrain the companion masses of 32 binaries. While most hot subdwarf binaries have white-dwarf or late-type main sequence companions, as predicted by binary evolution models, at least 5% of the observed subdwarfs must have very massive companions: unusually heavy white dwarfs, neutron stars and, in some cases, even black holes. We present evolutionary models which show that such binaries can indeed form if the system has evolved through two common-envelope phases. This new connection between hot subdwarfs, which are numerous in the Galaxy, and massive compact objects may lead to a tremendous increase in the number of known neutron stars and black holes and shed some light on this dark population and its evolutionary link to the X-ray binary population.
description: 8 pages, 5 figures, to appear in the Journal of Physics Conference Proceedings (JPCS) for the 16th European White Dwarf Workshop, Barcelona, Spain, June 30 - July 11, 2008
The madrid novels of pereda
Creators: name: Smith, Clifford
Publisher: name: University of British Columbia
Year: 2011

description: José María de Pereda (I833-I906) lived most of his life at his house in Polanco, in Santander Province on the Cantabrian Coast. The greater part of his novels and stories are set in the towns and villages of this province, but throughout them, he was conscious of the influence that Madrid and its customs was exerting on the traditional way of life in the small centers of provincial society. His awareness of this social force is most clearly expressed in three long short stories and two full-length novels, Pedro Sánchez and La Montálvez, in which the principal setting is the Spanish capital city. These novels have never received the critical acclaim that is their due, because of the desire of many critics to judge them by non-literary criteria. This thesis studies Pereda's presentation of the historical background to the novels and his analysis of various aspects of Madrid life, especially the political system, the press and the attitudes of fashionable society to love and sex, to education and religion. His ideas on the aesthetics of art and on Spain's literary heritage give rise to certain trends in his narrative style; this and the technical accomplishment of the two full-length novels, is discussed at some length. A final section analyses his creation of characters and situations, and his treatment of themes in these two novels, in order to show that the real measure of his success is the host of characters, whom he made human and artistically credible.
Search for the 3He-eta bound state at COSY-11
Creators: name: Krzemien, W.
name: Smyrski, J.
name: Budzanowski, A.
name: Czerwinski, E.
name: Czyzykiewicz, R.
name: Gil, D.
name: Grzonka, D.
name: Jarczyk, L.
name: Kamys, B.
name: Khoukaz, A.
name: Klaja, P.
name: Moskal, P.
name: Oelert, W.
name: Przerwa, J.
name: Ritman, J.
name: Sefzick, T.
name: Siemaszko, M.
name: Silarski, M.
name: Taeschner, A.
name: Wolke, M.
name: Wuestner, P.
name: Zdebik, J.
name: Zielinski, M. J.
name: Zipper, W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We have measured excitation function for dp -> ppp_pi- reaction near the eta production threshold. We observe an enhancement of the counting rate above the threshold which can originate from the production of the eta meson in the reaction dp -> 3He eta and its subsequent absorption on neutron in the 3He nucleus leading to creation of the p_pi- pair.
description: Presented at 10th International Workshop on Meson Production, Properties and Interaction (MESON 2008), Cracow, Poland, 6 - 10 June 2008, 4 pages, 4 figures,references added
Observations of pulsar radio-emission with microsecond resolution.
Creators: name: Allen, RK
Publisher: name: University Of Tasmania
Year: 2023

description: This thesis describes a new technique for observing pulsar micro-structure, which is a class of random fluctuations in pulsar radio-emission on timescales less than one millisecond. Using this technique observations were made with a time resolution of 0.5 ˜í¬¿s. No new phenomena were revealed by the improvement in time resolution over that used by other workers. However the first measurement of the microstructure timescale of pulsar PSR 1749-28 was obtained. The design of the equipment and the computer processing involved in the method are described in the thesis. In this method -pulsar signals in a bandwidth of 2 MHz are mixed to baseband and recorded on videotape. Subsequently selected parts of the tape are digitized using the stop action facility of the recorder and an interleaved sampling scheme. The effects of interstellar dispersion are removed by computer processing yielding the maximal time resolution 1/B where B is the bandwidth, that is, 2 MHz. This method avoids the normal restriction, imposed by the speed of the digitizer, that applies when digitizing is done in real time, namely that the bandwidth must be restricted to half the sample rate. Recordings were made of signals received by the Molonglo radiotelescope at 408 MHz from 15 pulsars. A total of 22 pulses from four different pulsars were strong enough and otherwise suitable for analysis. Each pulse involves 86000 samples, that is, a time window of 20 ms sampled at an effective rate of 4.5 MHz. The pulses were analyzed at time resolutions down to 0.5 ˜í¬¿s and the dynamic spectrum of each in an observing window 15 ms x 2 MHz was obtained. A search was made for frequency-time structures such as those produced by moving,radiating sources and by interference effects in the pulsar magnetosphere. Such structures were not observed. Auto-correlation and cross-correlation analyses were carried out on the data. The results for PSR 0950+08 agree with those obtained by other workers. A characteristic microstructure timescale of 250 ¬¨¬± 50 ˜í¬¿s was obtained from the auto-correlation of the power spectrum of PSR 1749-28. All of the observations are consistent with the amplitude-modulated noise (AMN) model of Rickett (1975) together with interstellar scintillation. One particular pulse from PSR 0950+08 was analyzed in great detail because some large unresolved intensity fluctuations were apparent. Single intense impulses are not consistent with the ANN model and would be of some astrophysical interest if found. A series of tests were applied to the data; it is concluded that such impulses were not observed. The relationship of the ANN model to pulsar emission theories and the direction of future research are discussed.
IMPACT OF RENEWABLE ENERGY SOURCES ON THE ECOSYSTEM OF UZBEKISTAN
Creators: name: Mamatxalilova, Dinora
Publisher: name: Zenodo
Year: 2024

description: Uzbekistan has recently increased investment in renewable energy to reduce reliance on fossil fuels and mitigate climate change. This article examines the environmental impacts, both positive and negative, of expanding solar, wind, and hydropower infrastructure in Uzbekistan. A literature review reveals that while renewable energy provides climate benefits, large-scale projects can disrupt local ecosystems. Proactive policies will be key to maximizing the sustainability of Uzbekistan's renewable energy sector.
Unsteady flow phenomena in an axial flow compressor.
Creators: name: Boxhall, Peter James
Publisher: name: University Of Tasmania
Year: 2023

description: A broad investigation of the unsteady flow phenomena which occur in an axial flow compressor is presented. It is based on an analysis of hot wire measurements of the time variation in velocity at fixed points in the flow through a single stage machine with three blade rows. The study has been confined mainly to the \potential flow\" unsteadiness due to the rotor movement and the effect of wakes from one blade row interacting with downstream rows. A general experimental investigation of the compressor blade wakes is included. The results are compared with velocity distributions calculated from existing potential flow models of the flow through a cascade and a new model lased on the approximations of thin aerofoil theory is developed by the author. Consideration is given to the development of a model of a blade wake and the author's potential flow model is extended to include a wake and boundary. layer thickness effect. Also included is an account of a brief experimental investigation of the noise generated by the compressor due to blade row interaction effects."
A mixed methods protocol to evaluate the effectiveness and acceptability of COVID-19 Community Assessment Hubs
Creators: name: Symmons, Sophie Mulcahy
name: Fox, Robert
name: Marese Mannion
name: Joyce, David
name: Brún, Aoife De
name: Glynn, Liam
name: Ryan, Damien
name: Keane, Niamh
name: McAuliffe, Eilish
Publisher: name: Zenodo
Year: 2021

description: Abstract  Background: Ireland’s health system has been under significant strain due to staff shortages and inadequate capacity. Critical care bed capacity per capita in Ireland is among the lowest in Europe, thus, the coronavirus disease 2019 (COVID-19) pandemic has put additional strain on an over-stretched system. COVID-19 Community Assessment Hubs (CAHs) were established to mitigate unnecessary admission to acute hospitals, and reduce infection spread by supporting COVID-19 positive or suspected positive patients to isolate at home, or in isolation facilities. There is some evidence that similar assessment centres may be a successful triage strategy to reduce burden on hospital and acute care. Aim: The aim of this study is to evaluate the impact of COVID-19 Community Assessment Hubs on service delivery in one region in Ireland. Methods: A mixed-methods approach will be used, incorporating co-design to engage stakeholders and ensure informed data capture and analysis. Online surveys will assess CAH patients’ experiences of access to and quality of care. Clinical patient data from CAHs will be collected and analysed using multinomial logistic regression to check for association with patient demographics and COVID-19 symptoms, and CAH early warning scores and outcomes (Transfer to Emergency Department, Transfer to isolation unit, Sent home with care plan). Semi-structured interviews will be conducted with: patients to elicit an in-depth understanding of experiences and acceptability of attending CAHs; and staff to understand challenges, benefits, and effectiveness of CAHs. Interview data will be analysed using a thematic analysis approach. Discussion: This study will provide valuable insights from both patient and staff perspectives on the operation of CAHs. We will evaluate the effectiveness and acceptability of CAHs and propose areas for improvement of the service. This will contribute to international literature on the use of community assessment centres during infectious disease pandemics. Participant Information Sheets, Consent Forms, Interview Guides and Survey for this protocol are available here.
Thermodynamics of Charged Brans-Dicke AdS Black Holes
Creators: name: Sheykhi, A.
name: Yazdanpanah, M. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is well-known that in four dimensions, black hole solution of the Brans-Dikce-Maxwell equations is just the Reissner-Nordstrom solution with a constant scalar field. However, in $n\geq4$ dimensions, the solution is not yet the $(n+1)$-dimensional Reissner-Nordstrom solution and the scalar field is not a constant in general. In this paper, by applying a conformal transformation to the dilaton gravity theory, we derive a class of black hole solutions in $(n+1)$-dimensional $(n\geq 4)$ Brans-Dikce-Maxwell theory in the background of anti-de Sitter universe. We obtain the conserved and thermodynamic quantities through the use of the Euclidean action method. We find a Smarr-type formula and perform a stability analysis in the canonical ensemble. We find that the solution is thermally stable for small $α$, while for large $α$ the system has an unstable phase, where $α$ is a coupling constant between the scalar and matter field.
description: 14 pages, one figure, to appear in Phys. Lett. B
F(R) supergravity
Creators: name: Ketov, Sergei
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We review the F(R) supergravity recently proposed in Phys. Lett. B674 (2009) 59 and Class. Quantum Grav. 26 (2009) 135006. Our construction supersymmetrizes popular f(R) theories of modified gravity in four spacetime dimensions. We use curved superspace of N=1 Poincar'e supergravity in its minimal (2nd order) formulation so that our F(R) supergravity action is manifestly invariant under local N=1 supersymmetry. We prove that the F(R) supergravity is classically equivalent to the standard N=1 Poincar'e supergravity (minimally) coupled to a dynamical chiral superfield, via a Legendre-Weyl transform in superspace. A K"ahler potential, a superpotential and a scalar potential of the chiral superfield are governed by a single holomorphic function. We find the conditions of vanishing cosmological constant without fine-tuning, which define a no-scale F(R) supergravity.
description: 10 pages; to appear in the Proceedings of International Conference `Invisible Universe', Paris, Palais de l'UNESCO, June 29 -July 3, 2009
INKLYUZIV TA'LIM - TENG IMKONIYATLAR POYDEVORIDIR.
Creators: name: Isodullayeva, Iqboloy
name: Maxammatova, Flora
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqolada inklyuziv ta’limning e’tirof etilishi, barcha uchun ochiq bo‘lishi va kompleks yondashuv jihatlari, iklyuziv ta’limni rivojlantirish ustuvor yo’nalishlarga ega bo’lgan tamoyillari va yo’nalishlarining muhim ahamiyati haqida.
Signature of primordial non-Gaussianity of phi^3-type in the mass function and bias of dark matter haloes
Creators: name: Desjacques, Vincent
name: Seljak, Uros
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore the effect of a cubic correction gnl*phi^3 on the mass function and bias of dark matter haloes extracted from a series of large N-body simulations and compare it to theoretical predictions. Such cubic terms can be motivated in scenarios like the curvaton model, in which a large cubic correction can be produced while simultaneously keeping the quadratic fnl*phi^2 correction small. The deviation from the Gaussian halo mass function is in reasonable agreement with the theoretical predictions. The scale-dependent bias correction Delta b_kappa(k,gnl) measured from the auto- and cross-power spectrum of haloes, is similar to the correction in fnl models, but the amplitude is lower than theoretical expectations. Using the compilation of LSS data in Slosar et al. (2008), we obtain for the first time a limit on gnl of -3.5*10^5 < gnl < +8.2*10^5 (at 95% CL). This limit will improve with the future LSS data by 1-2 orders of magnitude, which should test many of the scenarios of this type.
description: 21 pages, 11 figures (v2): typo corrected, clarifications+references added (v3): paper somewhat reorganized, added discussion on initial conditions, version accepted by PRD
Rayleigh wave dispersion studies of crustal and upper mantle structure in New Guinea.
Creators: name: Brooks, J A
Publisher: name: University Of Tasmania
Year: 2023

description: A study of Rayleigh wave dispersion from earthquakes within the New Guinea area has revealed two features of shear velocity distribution not examined previously. Variations in depth,to 300 km below the tectonically stable platform of southern New Guinea were determined from recordings of fundamental and higher mode Rayleigh waves. This average profile for paths shorter than 2000 km, contains a low velocity zone reaching 4.2 km/sec. at depths of 120 to 160 km, which is overlain by a relatively thick cap of material with a velocity of 4.4 km/sec. The lateral gross distribution of shear velocities beneath the crust, emerged from examination of fundamental mode dispersion profiles. Many of the phase velocity profiles were resolved from single station data and techniques used to define the correct dispersion in such cases are discussed. Although interpretations of these are strictly limited in structurally heterogeneous regions such as New Guinea, phase velocities at periods near 40 seconds are controlled mainly by shear velocities in the uppermost 50 km of the mantle, in zones of greater homogeneity than the crust. Known geophysical data, existing hypotheses of geotectonic development of the New Guinea region, the concept of sea floor spreading, and observed characteristics of mineral assemblages under high temperatures and pressures, provide a framework within which these data are examined. Upper mantle Velocities are highest, about 4.7 km/sec., beneath the crust of the Solomon Sea, lowest beneath the shield structure of southern New Guinea and appear to have intermediate values beneath the cordilleran region. These differences are large enough to indicate that regional variations exist in the mineralogy of the upper mantle. The relatively low velocities underlying the southern New Guinea crust may also imply a higher heat flow than normally expected in the most ancient pre Cambrian shield regions of the world. In general the results are not sufficiently detailed or comprehensive to test existing hypotheses of geotectonic development of this complex region and the study should rather be treated as a basic contribution to knowledge of the New Guinea area.
De l'open access à la science ouverte
Creators: name: Ollendorff, Christine
Publisher: name: Zenodo
Year: 2022
Subjects: open access
open science

description: Bref historique de l'accès ouvert aux publications scientifiques, définitions, acteurs concernés et évolution vers la science ouverte. Exemples de la France et des Arts et Métiers. Présentation faite lors d'un webinaire organisé par l'ADBS le 17 février 2022.
Massive Gravity in Three Dimensions
Creators: name: Bergshoeff, Eric A.
name: Hohm, Olaf
name: Townsend, Paul K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A particular higher-derivative extension of the Einstein-Hilbert action in three spacetime dimensions is shown to be equivalent at the linearized level to the (unitary) Pauli-Fierz action for a massive spin-2 field. A more general model, which also includes `topologically-massive' gravity as a special case, propagates the two spin 2 helicity states with different masses. We discuss the extension to massive ${\cal N}$-extended supergravity, and we present a `cosmological' extension that admits an anti-de Sitter vacuum.
description: Minor corrections plus a further correction to discussion of supersymmetry in adS vacua, Version to be published
Three fermions in a box
Creators: name: Luu, Thomas
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: I calculate finite-volume effects for three identical spin-1/2 fermions in a box assuming short-ranged repulsive interactions of `natural size'. This analysis employs standard perturbation theory in powers of 1/L, where L^3 is the volume of the box. I give results for the ground states in the A_1, T_1, and E cubic representations.
description: 7 pages, 1 figure Proceedings from Lattice '08
Slow Light of an Amplitude Modulated Gaussian Pulse in Cesium Vapor
Creators: name: Tang, Wenzhuo
name: Luo, Bin
name: Liu, Yu
name: Guo, Hong
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Slow light of an amplitude modulated Gaussian (AMG) pulse in cesium vapor is demonstrated and studied, as an appropriate amplitude modulation to a single pulse can expand its spectrum and thus increase the utilization efficiency of the bandwidth of a slow light system. In a single-$Λ$ type electromagnetically induced transparency (EIT) system, the slowed AMG pulse experiences severe distortion, mainly owing to the frequency dependent transmission of medium. Additionally, due to its spectral distribution, the frequency dependent dispersion of the medium causes simultaneous slow and fast light of different spectral components and thus a certain dispersive distortion of the AMG pulse. Further, a post-processing method is proposed to recover the slowed (distorted) pulse, which indicates that by introducing a linear optical system with a desired gain spectrum we can recover the pulse in an "all-optical" way. Finally, we discuss the limitations during this compensation procedure in detail. Although it is demonstrated in the cesium vapor using EIT, this method should be applicable to a wide range of slow light systems.
description: 5 pages, 5 figures
D4.2. Promote use and increase participation to the S3E framework
Creators: name: S3E Consortium
Publisher: name: Zenodo
Year: 2023

description: This deliverable covers the Progress and outcomes of Task 4.2, preparing the ground for the Boost phase and the 2nd cycle of our acceleration programme. The purpose of T4.2 was to Support participation and engagement of our beneficiaries and stakeholders: Start-ups, challenges organisations, experts.

The deliverable presents the structure of our S3E framework as it evolved through the 1st cycle, consolidates conclusions and insights from other deliverables (Open Call #1 Results, Engagement, Dissemination & Communication, and Synergies Plan). The deliverable also refers to the Impact Assessment and our strategy to improve and further promote S3E Framework.
Vortex patterns in a superconducting-ferromagnetic rod
Creators: name: Romaguera, Antonio R. de C.
name: Doria, Mauro M.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A superconducting rod with a magnetic moment on top develops vortices obtained here through 3D calculations of the Ginzburg-Landau theory. The inhomogeneity of the applied field brings new properties to the vortex patterns that vary according to the rod thickness. We find that for thin rods (disks) the vortex patterns are similar to those obtained in presence of a homogeneous magnetic field instead because they consist of giant vortex states. For thick rods novel patterns are obtained as vortices are curve lines in space that exit through the lateral surface.
description: 4 pages, 4 figues, Proceeding of the Sixth International Conference in School Format on Vortex Matter in Nanostructured Superconductors (VORTEX VI)
Mask, strategies and inspection time
Creators: name: Bingham, EB
Publisher: name: University Of Tasmania
Year: 2023

description: This study evaluated a number of procedural problems in the Inspection Time research which had not previously been evaluated. Three problems appeared to be related to the backward masking stimuli and procedure used in the measurement of Inspection Time. In the course of the study three new masks were generated and evaluated for effectiveness and reliability in controlling effectiveness and reliability in controlling post-masking cues. The effect of these different masks on mean I.T. measure and on the I.T.-I.Q. correlation was assessed. The occurrence and nature of strategy use across different target-mask stimuli was examined, classified and documented. Finally, the extent and nature of practice effects was determined. All these procedural problems were found to be closely interrelated and all were shown to affect the measurement of Inspection Time. Results clearly indicated that the procedural aspects of the Inspection Time measure need to be standardised and controlled before the reliability and meaningfulness of the LT.-I.Q. correlation can be fully realised.
Studies in the field of bisbenzylisoquinoline alkaloids.
Creators: name: Clezy, Peter Steele
Publisher: name: University Of Tasmania
Year: 2023

description: Atherospermine, the major base of Atherosoerma moschatum, has been shown to be identical with berbamine and the phenolic group in this base has been placed unequivocally. Sodium in liquid ammonia reductive cleavages have been used to investigate. structural problems which could not be resolved by standard degradative methods. In particular the secondary nitrogen group has been placed in daphnoline and daphnandrine while more information has been gained concerning the placement of hydroxyl groups in aromoline, daphnandrine, daphnoline,isochondrodendrine and.chondrocurine. Observations, on reductive fission experiments on dauricine and repanduline have been recorded. Some stereochemical problems associated with repandine and okyacanthine have been discussed. Extractions have been performed using modern techniques and these procedures have revealed the presence of new compounds in Berberis vulgaris (isotetrandrine, berberine oxalamide) and Chondrodendron tomentosum (tomentosine, N-benzylphthalimide). Extractions on the Daphnandras have revealed further irregularities in their alkaloid content. The results of 4 survey of some Tasmanian plants for alkaloid-bearing species have been tabulated. Friedelin together with some other non-basic compounds have been iSolated'from the bark of Takini, tree nativeto Surinam South America.
Sir Edmund Walker, servant of Canada
Creators: name: Marshall, Barbara Ruth
Publisher: name: University of British Columbia
Year: 2011

description: In the laissez-faire system of the late nineteenth century, Sir Edmund Walker, Canadian businessman, saw his life in terms not of his personal gain, but of his service to his country. His Victorian curiosity and ethic of service prompted him to work for Canada in many varied areas from banking, to the arts, to planning a new imperial structure in the Round Table. By World War I, however, this Victorian ethic could no longer survive in the modern world which had evolved. Government also ended laissez-faire by entering fields which business philanthropy had neglected. While most Canadians seemed to recognize Sir Edmund's achievements, after the war they scoffed at his outdated views of service. Byron Edmund Walker, born in 1848 in Haldimand County, Ontario, was the eldest son of a poor, but educated, middle class, English family. Their love of culture and science was transmitted to him at an early age. Although he started banking at twelve, becoming president of the Canadian Bank of Commerce in 1907, Edmund Walker did not neglect this cultural heritage. The Champlain Society, Royal Ontario Museum, University of Toronto, National Gallery, Art Gallery of Ontario, and Guild of Civic Art in Toronto are some of the institutions which he worked for, or helped to found. During this same period Sir Edmund also built up the Canadian Bank of Commerce, the nation's second largest bank, and as the foremost banker in Canada, he led discussions at the decennial revision of the Bank Act. A self-made millionaire, Walker died in Toronto in 1924. Because his career coincided with Canada's greatest boom, from about 1900 to 1914, it is difficult to establish how much Sir Edmund's efforts actually contributed to his many accomplishments. This is further complicated by the fact that in these ventures he was assisted ably by Zebulon Lash, his enigmatic, corporation lawyer friend. Yet with qualifications, Walker's 'service' to Canada is still outstanding. This thesis, then, is primarily an examination of Sir Edmund Walker's ideas, and how they functioned in his Canadian environment.