cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Correlations and synchronization in a Bose-Fermi mixture
Creators: name: Díaz, Pablo
name: Laroze, David
name: Malomed, Boris A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study a Bose-Fermi mixture within the framework of the mean-field theory, including three possible regimes for the fermionic species: fully polarized, BCS, and unitarity. Starting from the 3D description and using the variational approximation (VA), we derive 1D and 2D systems of equations, under the corresponding confining potentials. This method produces a pair of nonlinear Schrödinger (NLS) equations coupled to algebraic equations for the transverse widths of the confined state. The equations incorporate interactions between atoms of the same species and between the species, assuming that the latter can be manipulated by means of the Feshbach resonance (FR). As an application, we explore spatial density correlations in the ground state (GS) between the species, concluding that they strongly depend on the sign and strength of the inter-species interaction. Also studied are the dynamics of the mixture in a vicinity of the GS and the corresponding spatiotemporal inter-species correlation. The correlations are strongly affected by the fermionic component, featuring the greatest variation in the unitary regime. Results produced by the VA are verified by comparison with full numerical solutions.
description: Journal of Physics B: Atomic, Molecular and Optical Physics, in press
Structural Properties of Networks Grown via an Achlioptas Process
Creators: name: Jo, Woo Seong
name: Yi, Su Do
name: Kim, Beom Jun
name: Son, Seung-Woo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: After the Achlioptas process (AP), which yields the so-called explosive percolation, was introduced, the number of papers on percolation phenomena has been literally exploding. Most of the existing studies, however, have focused only on the nature of phase transitions, not paying proper attention to the structural properties of the resulting networks, which compose the main theme of the present paper. We compare the resulting network structure of the AP with random networks and find, through observations of the distributions of the shortest-path length and the betweenness centrality in the giant cluster, that the AP makes the network less clustered and more fragile. Such structural characteristics are more directly seen by using snapshots of the network structures and are explained by the fact that the AP suppresses the formation of large clusters more strongly than the random process does. These structural differences between the two processes are shown to be less noticeable in growing networks than in static ones.
description: 12 pages, 4 figures, submitted for the journal publication
Identification of graphite with perfect rhombohedral stacking by electronic Raman scattering
Creators: name: Pálinkás, András
name: Márity, Krisztián
name: Kandrai, Konrád
name: Tajkov, Zoltán
name: Gmitra, Martin
name: Vancsó, Péter
name: Tapasztó, Levente
name: Nemes-Incze, Péter
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Rhombohedral graphite (RG) shows strong correlations in its topological flat band and is pivotal for exploring emergent, correlated electronic phenomena. One key advantage is the enhancement of electronic interactions with the increase in the number of rhombohedrally stacked graphene layers. Increasing thickness also leads to an exponential increase in the number of stacking faults, necessitating a precise method to identify flawless rhombohedral stacking. Overcoming this challenge is difficult because the established technique for stacking sequence identification, based on the Raman 2D peak, fails in thick RG samples. We demonstrate that the strong layer dependence of the band structure can be harnessed to identify RG without stacking faults, or alternatively, to detect their presence. For thicknesses ranging from 3 to 12 layers, we show that each perfect RG structure presents distinctive peak positions in electronic Raman scattering (ERS). This measurement can be carried out using a conventional confocal Raman spectrometer at room temperature, using visible excitation wavelengths. Consequently, this overcomes the identification challenge by providing a simple and fast optical measurement technique, thereby helping to establish RG as a platform for studying strong correlations in one of the simplest crystals possible.
description: 20 pages, 6 figures
The Perception on Lecturer Oral Corrective Feedback during Students' Presentation
Creators: name: Roniy Yanggara
name: Apni Ranti
Publisher: name: Zenodo
Year: 2020
Subjects: Oral Corrective Feedback
EFL Students
Perception
Students' Presentation

description: PPT FOR INACELT 2020 IAIN PALANGKA RAYA
Experimental investigation on the temperature dependence of the nuclear level density parameter
Creators: name: Dey, Balaram
name: Pandit, Deepak
name: Bhattacharya, Srijit
name: Banerjee, K.
name: Hung, N. Quang
name: Dang, N. Dinh
name: Mondal, Debasish
name: Mukhopadhyay, S.
name: Pal, Surajit
name: De, A.
name: Banerjee, S. R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The effect of temperature (T) and angular momentum (J) on the inverse level density parameter (k) has been studied by populating the compound nucleus $^{97}$Tc in the reaction $^{4}$He + $^{93}$Nb at four incident beam energies of 28, 35, 42 and 50 MeV. For all the four energies, the value of k decreases with increasing J. The T dependence of k has been compared for two angular momentum windows with different theoretical predictions as well as with FTBCS1 calculation which takes into account the quasiparticle-number fluctuations in the pairing field. Interestingly, the experimental data are in good agreement with the theoretical calculations at higher J but deviate from all the calculations at lower J.
description: 5 Figures and 5 pages
(500798) William Hurford Todd
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Searching for scalar field dark matter with LIGO
Creators: name: Göttel, Alexandre S.
name: Ejlli, Aldo
name: Karan, Kanioar
name: Vermeulen, Sander M.
name: Aiello, Lorenzo
name: Raymond, Vivien
name: Grote, Hartmut
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We report on a direct search for scalar field dark matter using data from LIGO's third observing run. We analyse the coupling of size oscillations of the interferometer's beamsplitter and arm test masses that may be caused by scalar field dark matter. Using new efficient search methods to maximise sensitivity for signatures of such oscillations, we set new upper limits for the coupling constants of scalar field dark matter as a function of its mass, which improve upon bounds from previous direct searches by several orders of magnitude in a frequency band from 10 Hz to 180 Hz.
description: 6 pages (including references), 3 figures
(500797) Mary Jane Todd
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
ToMoBrush: Exploring Dental Health Sensing using a Sonic Toothbrush
Creators: name: Yuan, Kuang
name: Ibrahim, Mohamed
name: Song, Yiwen
name: Deng, Guoxiang
name: Vijayan, Suvendra
name: Nerone, Robert
name: Gadre, Akshay
name: Kumar, Swarun
Publisher: name: arXiv
Year: 2024
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: J.3; C.3; H.5.2

description: Early detection of dental disease is crucial to prevent adverse outcomes. Today, dental X-rays are currently the most accurate gold standard for dental disease detection. Unfortunately, regular X-ray exam is still a privilege for billions of people around the world. In this paper, we ask: "Can we develop a low-cost sensing system that enables dental self-examination in the comfort of one's home?"
 This paper presents ToMoBrush, a dental health sensing system that explores using off-the-shelf sonic toothbrushes for dental condition detection. Our solution leverages the fact that a sonic toothbrush produces rich acoustic signals when in contact with teeth, which contain important information about each tooth's status. ToMoBrush extracts tooth resonance signatures from the acoustic signals to characterize varied dental health conditions of the teeth. We evaluate ToMoBrush on 19 participants and dental-standard models for detecting common dental problems including caries, calculus, and food impaction, achieving a detection ROC-AUC of 0.90, 0.83, and 0.88 respectively. Interviews with dental experts validate ToMoBrush's potential in enhancing at-home dental healthcare.
(500796) Eliza Ellen Moore
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Limnesia (Limnesia) volzi Piersig 1906
Creators: name: SAVATENALINTON, SUKONTHIP
name: SMIT, HARRY
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Limnesiidae
Limnesia
Limnesia volzi

description: Limnesia (Limnesia) volzi Piersig, 1906
Limnesia microplatus Wen & Zhu, 2001 —new syn.
Material examined. 0/1/0, rice field, Yasothon Province, Thailand, 15° 44.688ʹ N, 104° 13.244ʹ E, 24-x-2010; 1/2/0, Nong Oep Oe reservoir, Ban Dua, Nong Khai Province, 17° 59ʹ 5.12ʺ N 102° 57ʹ 42.70ʺ E, 30-i-2011.
Remarks. Wen & Zhu (2001) described Limnesia microplatus, and compared it with L. patens Viets, 1935. However, their species is similar to L. volzi in the size, shape of genital field and palp. It matches the description given by Piersig (1906) and Lundblad (1969), and we therefore propose to synonymize L. microplatus with L. volzi. The species is known from Sumatra, Malaysia, China and reported here for the first time from Thailand.
description: Published as part of SAVATENALINTON, SUKONTHIP & SMIT, HARRY, 2017, New records of water mites from standing waters in Thailand, with the description of nine new species (Acari: Hydrachnidia), pp. 69-91 in Zootaxa 4312 (1) on page 74, DOI: 10.11646/zootaxa.4312.1.3, http://zenodo.org/record/852086
The Kozai-Lidov Mechanism in Hydrodynamical Disks. II. Effects of binary and disk parameters
Creators: name: Fu, Wen
name: Lubow, Stephen H.
name: Martin, Rebecca G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Martin et al. (2014b) showed that a substantially misaligned accretion disk around one component of a binary system can undergo global damped Kozai-Lidov oscillations. During these oscillations, the inclination and eccentricity of the disk are periodically exchanged. However, the robustness of this mechanism and its dependence on the system parameters were unexplored. In this paper, we use three-dimensional hydrodynamical simulations to analyze how various binary and disk parameters affect the Kozai-Lidov mechanism in hydrodynamical disks. The simulations include the effect of gas pressure and viscosity, but ignore the effects of disk self-gravity. We describe results for different numerical resolutions, binary mass ratios and orbital eccentricities, initial disk sizes, initial disk surface density profiles, disk sound speeds, and disk viscosities. We show that the Kozai-Lidov mechanism can operate for a wide range of binary-disk parameters. We discuss the applications of our results to astrophysical disks in various accreting systems.
description: updated to match published version
YET ANOTHER UNUSUAL NEW TYPE OF LACEWING LARVA PRESERVED IN 100-MILLION-YEAR OLD AMBER FROM MYANMAR
Creators: name: T. HAUG, JOACHIM
name: G. PAZINATO, PAULA
name: T. HAUG, GIDEON
name: HAUG, CAROLIN
Publisher: name: RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA
Year: 2020

description: Lacewing larvae are mostly predatory, highly mobile larval forms of Insecta. The modern fauna yields several morphotypes of lacewing larvae, each closely associated with a distinct evolutionary lineage within the group of lacewings, Neuroptera. Back in the Cretaceous, about 100 million years ago, many of these larval forms had already evolved. Additionally, many larval forms seem to have been present that are now extinct. We report here a new form, which appears to be extinct now. This new larva has a prominent forward projecting labrum like larval forms of Nevrorthidae and Psychopsidae. It furthermore has (again similar to the latter two) curved venom-injecting stylets formed by mandibles and maxillae. We used quantitative outline analysis to compare the new larva to those of Nevrorthidae and Psychopsidae. The results of this analysis demonstrate that the new larva differs in all aspects of head capsule shape from all known larvae of Nevrorthidae. Its head shape is more similar to that of many larvae of Psychopsidae, yet also here the new larva differs recognisably in one principal component. Also qualitative differences clearly differentiate the new larva from already known ones. Hence, the new larva represents a new, so far unknown morphotype of lacewing larva. This finding adds to the growing 'zoo' of unusual lacewing larvae back in the Cretaceous, indicating that form diversity and ecological diversity of lacewings were much higher 100 million years ago.
description: RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA , Vol 126 No 3 (2020)
Coherent collisional decoherence
Creators: name: Badurina, Leonardo
name: Murgui, Clara
name: Plestid, Ryan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We study the decoherence of a system of $N$ non-interacting heavy particles (atoms) due to coherent scattering with a background gas. We introduce a framework for computing the induced phase shift and loss of contrast for arbitrary preparations of $N$-particle quantum states. We find phase shifts that are inherently $(N\geq 2)$-body effects and may be searched for in future experiments. We analyze simple setups, including a two-mode approximation of an interferometer. We study fully entangled $N00N$ states, which resemble the correlated positions in a matter interferometer, as well as totally uncorrelated product states that are representative of a typical state in an atom interferometer. We find that the extent to which coherent enhancements increase the rate of decoherence depends on the observable of interest, state preparation, and details of the experimental design. In the context of future ultralow-recoil (e.g., light dark matter) searches with atom interferometers we conclude that: {\it i}) there exists a coherently enhanced scattering phase which can be searched for using standard (i.e., contrast/visibility and phase) interferometer observables; {\it ii}) although decoherence rates of one-body observables are {\it not} coherently enhanced, a coherently enhanced loss of contrast can still arise from dephasing; and {\it iii}) higher statistical moments (which are immediately accessible in a counting experiment) {\it are} coherently enhanced and may offer a new tool with which to probe the soft scattering of otherwise undetectable particles in the laboratory.
description: Matches published version. Extended discussion compared to v1
Impaired viral infection and reduced mortality of diatoms in iron-limited oceanic regions
Creators: name: Kranzler, C.F.
name: Thamatrakoln, K.
name: Bruland, K.W.
name: Twining, B.S.
name: Lampe, R.H.
name: Till, C.P.
name: Mack, J.
name: Brzezinski, M.A.
name: Marchetti, A.
name: Latham, J.R.
name: Cohen, N.R.
name: Maniscalco, M.
Publisher: name: Nature Research
Year: 2021

description: Diatom primary productivity is tightly coupled with carbon export through the ballasted nature of the silica-based cell wall, linking the oceanic silicon and carbon cycles. However, despite low productivity, iron (Fe)-limited regimes are considered ‘hot spots’ of diatom silica burial with enhanced carbon export efficiency, raising questions about the mechanisms driving the biogeochemistry of these regions. Marine viruses are classically recognized as catalysts of remineralization through host lysis, short-circuiting the trophic transfer of carbon and facilitating the retention of dissolved organic matter and associated elements in the surface ocean. Here we used metatranscriptomic analysis of diatoms and associated viruses, along with a suite of physiological and geochemical metrics, to study the interaction between diatoms and viruses in Fe-limited regimes of the northeast Pacific. We found low cell-associated diatom virus diversity and abundance in a chronically Fe-limited region of the subarctic northeast Pacific. In a coastal upwelling region of the California Current, transient iron limitation also substantially reduced viral replication. These observations were recapitulated in Fe-limited cultures of the bloom-forming, centric diatom, Chaetoceros tenuissimus, which exhibited delayed virus-mediated mortality in addition to reduced viral replication. We suggest Fe-limited diatoms escape viral lysis and subsequent remineralization in the surface ocean, providing an additional mechanism contributing to enhanced carbon export efficiency and silica burial in Fe-limited oceanic regimes.
Hygrobates (Monobates) falcipalpis Koenike 1906
Creators: name: SAVATENALINTON, SUKONTHIP
name: SMIT, HARRY
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Hygrobatidae
Hygrobates
Hygrobates falcipalpis

description: Hygrobates (Monobates) falcipalpis Koenike, 1906
Material examined. 0/5/0, Pond between Kaeng Krachan and Tha Yang, Phetchaburi Province, 12° 56.131ʹ N, 99° 48.543ʹ E, alt. 11 m a.s.l., 30-xi-2007, leg H. Smit.
Remarks. Cook (1967) described a similar species from India. i.e. H. karekari Cook, 1967. According to Lundblad (1969), the figures of Koenike (1906) are not reliable, and Cook’s species must be synonymized with H. falcipalpis. It is likely that this species of standing waters is widespread, and therefore we follow Lundblad (1969). The present record is new for the fauna of Thailand. Thus far, it has been reported from Oriental region only, namely Java, India, Burma and Thailand (present study).
description: Published as part of SAVATENALINTON, SUKONTHIP & SMIT, HARRY, 2017, New records of water mites from standing waters in Thailand, with the description of nine new species (Acari: Hydrachnidia), pp. 69-91 in Zootaxa 4312 (1) on page 74, DOI: 10.11646/zootaxa.4312.1.3, http://zenodo.org/record/852086
FLARE: field line analysis and reconstruction for 3D plasma boundary modeling
Creators: name: Frerichs, H.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The FLARE code is a magnetic mesh generator that is integrated within a suite of tools for the analysis of the magnetic geometry in toroidal fusion devices. A magnetic mesh is constructed from field line segments and permits fast reconstruction of field lines in 3D plasma boundary codes such as EMC3-EIRENE. Both intrinsically non-axisymmetric configurations (stellarators) and those with symmetry breaking perturbations of an axisymmetric equilibrium (tokamaks) are supported. The code itself is written in Modern Fortran with MPI support for parallel computing, and it incorporates object-oriented programming for the definition of the magnetic field and the material surface geometry. Extended derived types for a number of different magnetohydrodynamic (MHD) equilibrium and plasma response models are implemented. The core element of FLARE is a field line tracer with adaptive step-size control, and this is integrated into tools for the construction of Poincaré maps and invariant manifolds of X-points. A collection of high-level procedures that generate output files for visualization is build on top of that. The analysis modules are build with Python frontends that facilitate customization of tasks and/or scripting of parameter scans.
description: 20 pages, 18 figures
(500795) Emily [Prosser]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Microbial Niche Diversification in the Galápagos Archipelago and Its Response to El Niño
Creators: name: Gifford, S.M.
name: Marchetti, A.
name: DeLong, K.
name: Zhao, L.
name: Stemple, B.
name: Seim, H.
name: Medeiros, P.M.
Publisher: name: Frontiers Media S.A.
Year: 2020

description: The Galápagos Archipelago is located at the intersection of several major oceanographic features that produce diverse environmental conditions around the islands, and thus has the potential to serve as a natural laboratory for discerning the underlying environmental factors that structure marine microbial communities. Here we used quantitative metagenomics to characterize microbial communities in relation to archipelago marine habitats, and how those populations shift due to substantial environmental changes brought on by El Niño. Environmental conditions such as temperature, salinity, inorganic dissolved nutrients, and dissolved organic carbon (DOC) concentrations varied throughout the archipelago, revealing a diversity of potential microbial niches arising from upwelling, oligotrophic to eutrophic gradients, physical isolation, and potential island mass effects. The volumetric abundances of microbial community members shifted with these environmental changes and revealed several taxonomic indicators of different water masses. This included a transition from a Synechococcus dominated system in the west to an even mix of Synechococcus and Prochlorococcus in the east, mirroring the archipelago’s mesotrophic to oligotrophic and productivity gradients. Several flavobacteria groups displayed characteristic habitat distributions, including enrichment of Polaribacter and Tenacibaculum clades in the relatively nutrient rich western waters, Leeuwenhoekiella spp. that were enriched in the more nutrient-deplete central and eastern sites, and the streamlined MS024-2A group found to be abundant across all sites. During the 2015/16 El Niño event, both environmental conditions and microbial community composition were substantially altered, primarily on the western side of the archipelago due to the reduction of upwelling from the Equatorial Undercurrent. When the upwelling resumed, concentrations of inorganic nutrients and DOC at the western surface sites were more typical of mesopelagic depths. Correspondingly, Synechococcus abundances decreased by an order of magnitude, while groups associated with deeper water masses were enriched, including streamlined roseobacters HTCC2255 and HIMB11, Thioglobacaceae, methylotrophs (Methylophilaceae), archaea (Nitrosopumilaceae), and distinct subpopulations of Pelagibaceriales (SAR11 clade). These results provide a quantitative framework to connect community-wide microbial volumetric abundances to their environmental drivers, and thus incorporation into biogeochemical and ecological models.
Deformations and Moduli of Structures on Manifolds: General Existence Theorem and Application to the Sasakian Case
Creators: name: Meersseman, Laurent
name: Nicolau, Marcel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: In this paper, we prove an existence theorem of a local moduli space for geometric structures in a very general setting. Then to show the interest of this result, we apply it to the case of sasakian and Sasaki-Einstein structures.
description: Final version to be published in Annali Sc. Norm. Sup Pisa;
Development of an ultrasound triggered, thermally responsive hydrogel as an on-demand delivery system for bone repair
Creators: name: Badriah Ali
Publisher: name: Royal College of Surgeons in Ireland
Year: 2020
Subjects: subject: 90399 Biomedical Engineering not elsewhere classified
subject: FOS: Medical engineering

description: Bones can physiologically regenerate themselves. In the case of non-unionfractures and certain pathological conditions, however, regeneration issuboptimal, too slow, or does not occur. The clinical ‘gold standard’,autografting, can result in numerous complications including infection, chronicpain and donor site morbidity. Current commercial bone graft substitutes haveshown limited success and an effective ‘off-the-shelf’ solution is required. Theobjective of this study was to develop an ultrasonic-thermally responsivehydrogel for bone regeneration and to investigate its potential for on-demanddelivery of therapeutic agents in response to ultrasound. Thermo-responsivehydrogels demonstrate low ultrasonic adsorption properties, which limits theirapplication as on-demand delivery systems. Calcium phosphates (CaP) haveosteogenic properties and thus can stimulate new bone formation. In addition,they have high ultrasonic absorption coefficients and thus the potential to actas solid-phase sonosensitisers within hydrogel systems. This studyhypothesised that the incorporation of hydroxyapatite (HA) particles into analginate-based thermo-responsive hydrogel, has the potential to augment theultrasound sensitivity of the hydrogel and trigger controlled therapeuticrelease to the target tissue, while still demonstrating the necessarythermoresponsive, rheological and injectability requirements for minimallyinvasive application.Poly(N-isopropylacrylamide) (PNIPAAm) alginate hydrogels were fabricatedand varying quantities (1, 3, 5, and 7 wt %/vol) of HA were incorporated.Rheological characterisation showed the hydrogel elasticity was lowest for the1% HA group and increased with increasing HA concentration. Thepolymerisation temperature increased following the addition of HA butremained less than 36.8 ºC for all groups. All hydrogels were shown to behighly injectable with the maximum force required for injection remainingbelow 6.5 N. The release dynamics of three molecules, sodium fluorescein(NaF) dye, bovine serum albumin (BSA), and bone morphogenetic protein 2(BMP-2), following the application of a standard ultrasound regime wereexplored. Release in response to ultrasound was significantly enhanced in theHA containing hydrogels, demonstrating that HA effectively increasessonosensitisation within the hydrogel. Together these results demonstrate thatthe ultrasonic-thermally-responsive hydrogels developed here are promisinghydrogels capable of on-demand delivery of therapeutic agents for boneregeneration.
Transfer learning with generative models for object detection on limited datasets
Creators: name: Paiano, Matteo
name: Martina, Stefano
name: Giannelli, Carlotta
name: Caruso, Filippo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: I.2.6; I.2.0; I.4.8; I.4.9; I.5.1; I.5.0; I.5.4; J.3
subject: 68T05, 68T07, 68T10, 68T45,

description: The availability of data is limited in some fields, especially for object detection tasks, where it is necessary to have correctly labeled bounding boxes around each object. A notable example of such data scarcity is found in the domain of marine biology, where it is useful to develop methods to automatically detect submarine species for environmental monitoring. To address this data limitation, the state-of-the-art machine learning strategies employ two main approaches. The first involves pretraining models on existing datasets before generalizing to the specific domain of interest. The second strategy is to create synthetic datasets specifically tailored to the target domain using methods like copy-paste techniques or ad-hoc simulators. The first strategy often faces a significant domain shift, while the second demands custom solutions crafted for the specific task. In response to these challenges, here we propose a transfer learning framework that is valid for a generic scenario. In this framework, generated images help to improve the performances of an object detector in a few-real data regime. This is achieved through a diffusion-based generative model that was pretrained on large generic datasets. With respect to the state-of-the-art, we find that it is not necessary to fine tune the generative model on the specific domain of interest. We believe that this is an important advance because it mitigates the labor-intensive task of manual labeling the images in object detection tasks. We validate our approach focusing on fishes in an underwater environment, and on the more common domain of cars in an urban setting. Our method achieves detection performance comparable to models trained on thousands of images, using only a few hundreds of input data. Our results pave the way for new generative AI-based protocols for machine learning applications in various domains.
description: 28 pages, 16 figures, 1 table
Is Epistemic Uncertainty Faithfully Represented by Evidential Deep Learning Methods?
Creators: name: Jürgens, Mira
name: Meinert, Nis
name: Bengs, Viktor
name: Hüllermeier, Eyke
name: Waegeman, Willem
Publisher: name: arXiv
Year: 2024
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Trustworthy ML systems should not only return accurate predictions, but also a reliable representation of their uncertainty. Bayesian methods are commonly used to quantify both aleatoric and epistemic uncertainty, but alternative approaches, such as evidential deep learning methods, have become popular in recent years. The latter group of methods in essence extends empirical risk minimization (ERM) for predicting second-order probability distributions over outcomes, from which measures of epistemic (and aleatoric) uncertainty can be extracted. This paper presents novel theoretical insights of evidential deep learning, highlighting the difficulties in optimizing second-order loss functions and interpreting the resulting epistemic uncertainty measures. With a systematic setup that covers a wide range of approaches for classification, regression and counts, it provides novel insights into issues of identifiability and convergence in second-order loss minimization, and the relative (rather than absolute) nature of epistemic uncertainty measures.
A Case Study: Task Scheduling Methodologies for High Speed Computing Systems
Creators: name: Vucha, Mahendra
name: Rajawat, Arvind
Publisher: name: arXiv
Year: 2015
Subjects: subject: Operating Systems (cs.OS)
subject: Performance (cs.PF)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: High Speed computing meets ever increasing real-time computational demands through the leveraging of flexibility and parallelism. The flexibility is achieved when computing platform designed with heterogeneous resources to support multifarious tasks of an application where as task scheduling brings parallel processing. The efficient task scheduling is critical to obtain optimized performance in heterogeneous computing Systems (HCS). In this paper, we brought a review of various application scheduling models which provide parallelism for homogeneous and heterogeneous computing systems. In this paper, we made a review of various scheduling methodologies targeted to high speed computing systems and also prepared summary chart. The comparative study of scheduling methodologies for high speed computing systems has been carried out based on the attributes of platform & application as well. The attributes are execution time, nature of task, task handling capability, type of host & computing platform. Finally a summary chart has been prepared and it demonstrates that the need of developing scheduling methodologies for Heterogeneous Reconfigurable Computing Systems (HRCS) which is an emerging high speed computing platform for real time applications.
description: 12 pages
Efficient zinc/cobalt inter-replacement in northeast Pacific diatoms and relationship to high surface dissolved Co : Zn ratios
Creators: name: Marchetti, A.
name: Moran, D.M.
name: McIlvin, M.R.
name: Twining, B.S.
name: Saito, M.A.
name: Moffett, J.W.
name: Kellogg, M.M.
name: Vedamati, J.
Publisher: name: Wiley Blackwell
Year: 2020

description: The importance of zinc (Zn) as a nutrient and its ability to be substituted for by cobalt (Co) have been characterized in model marine diatoms. However, the extent to which this substitution capability is distributed among diatom taxa is unknown. Zn/Co metabolic substitution was assayed in four diatom species as measured by the effect of free ion concentrations of Zn2+ and Co2+ on specific growth rate. Analysis of growth responses found substitution of these metals can occur within the northwest Atlantic isolate Thalassiosira pseudonana CCMP1335, the northeast Atlantic isolate Phaeodactylum tricornutum CCMP632, and within the northeast Pacific isolates Pseudo-nitzschia delicatissima UNC1205 and Thalassiosira sp. UNC1203. Metabolic substitution of Co in place of Zn in the Atlantic diatoms supports their growth in media lacking added Zn, but at the cost of reduced growth rates. In contrast, highly efficient Zn/Co substitution that supported growth even in media lacking added Zn was observed in the northeast Pacific diatoms. We also present new data from the northeast Pacific Line P transect that revealed dissolved Co and Zn ratios (dCo : dZn) as high as 3.52 : 1 at surface (0–100 m) depths. We posit that the enhanced ability of the NE Pacific diatoms to grow using Co is an adaptation to these high surface dCo : dZn ratios. Particulate metal data and single-cell metal quotas also suggest a high Zn demand in diatoms that may be partially compensated for by Co.
Analytical model of precessing binaries using post-Newtonian theory in the extreme mass-ratio limit I: General Formalism
Creators: name: Loutrel, Nicholas
name: Mukherjee, Sajal
name: Maselli, Andrea
name: Pani, Paolo
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We develop a fully analytical waveform model for precessing binaries with arbitrary spin vectors using post-Newtonian~(PN) theory in the extreme mass-ratio limit and a hierarchical multi-scale analysis. The analytical model incorporates leading PN order spin precession dynamics from spin-orbit, spin-spin, and quadrupole-monopole couplings, and 2PN order dissipative dynamics truncated to first order in the mass ratio $q \ll 1$. Due to the pure analytic nature of the model, the framework developed herein can readily be extended to both higher PN and higher-$q$ order. Although the PN series is asymptotic to this limit, our results can be used to estimate how precession affects the measurability of certain binary parameters, and to inform and compare with other waveform approximants, such as effective-one-body models, hybrid waveforms, and self-force calculations.
description: 29 pages, 10 figures, published version
On the Peripheral Spectrum of Positive Operators
Creators: name: Glück, Jochen
Publisher: name: arXiv
Year: 2015
Subjects: subject: Spectral Theory (math.SP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47B65, 47A10

description: This paper contributes to the analysis of the peripheral (point) spectrum of positive linear operators on Banach lattices. We show that, under appropriate growth and regularity conditions, the peripheral point spectrum of a positive operator is cyclic and that the corresponding eigenspaces fulfil a certain dimension estimate. A couple of examples demonstrates that some of our theorems are optimal. Our results on the peripheral point spectrum are then used to prove a sufficient condition for the peripheral spectrum of a positive operator to be cyclic; this generalizes theorems of Lotz and Scheffold.
Interactive effects of iron and light limitation on the molecular physiology of the Southern Ocean diatom Fragilariopsis kerguelensis
Creators: name: Moreno, C.M.
name: Marchetti, A.
name: Gong, W.
name: Cohen, N.R.
name: DeLong, K.
Publisher: name: Wiley Blackwell
Year: 2020

description: The polar diatom Fragilariopsis kerguelensis is ubiquitous in Southern Ocean waters and is a major responder to iron fertilization, encountering large gradients in iron concentrations and light availability. We performed a comparative transcriptomic analysis of F. kerguelensis grown under varying iron and light conditions in order to investigate the molecular underpinnings that may explain its physiological response to iron and light limitation. Low iron reduced growth rates more than low light, but there was not an additive effect of low iron and low light on growth rate. Low iron treatments (saturating and low light) had the largest transcriptomic response; however, expression patterns were more similar in low light treatments (high and low iron). Under iron and light limitation, carbon fixation and amino acid, ribosome, and sulfur metabolisms were overrepresented relative to the control (iron replete, saturating light). Transcripts of genes encoding for the proteins aquaporin, proteorhodopsin, plastocyanin, and flavodoxin were overrepresented to the greatest extent in the low iron/low light treatment, indicating there may be an additive effect of iron/light colimitation at the molecular level. Iron and light replete cells demonstrated increased expression of genes encoding for the proteins ferritin, carbonic anhydrase, and numerous iron-dependent proteins relative to the growth-limiting treatments. This transcriptome analysis reveals mechanisms that may underpin the ecological success of this diatom in low iron and light environments, highlighting the important role of diversified photosynthetic isoforms, iron acquisition, unique detoxification mechanisms of reactive oxygen species, and metabolic shifts in amino acid recycling and carbon metabolism.
Sigthoria nilotica
Creators: name: SAVATENALINTON, SUKONTHIP
name: SMIT, HARRY
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Anisitsiellidae
Sigthoria
Sigthoria nilotica

description: Sigthoria nilotica (Nordenskiöld, 1905)
Material examined. 1/0, Roadside pond, Sisaket Province, 15°05.462ʹ N, 104°19.832ʹ E, 9-ii-2011; 7/0, swamp Kaeng Leang Chan, Maha Sarakham Province, 16° 11.469ʹ N, 103° 12.413ʹ E, 2-xi-2016.
Remarks. The species is widespread species, occurring in Africa, Asia and Australia. The present record is new for the fauna of Thailand.
description: Published as part of SAVATENALINTON, SUKONTHIP & SMIT, HARRY, 2017, New records of water mites from standing waters in Thailand, with the description of nine new species (Acari: Hydrachnidia), pp. 69-91 in Zootaxa 4312 (1) on page 73, DOI: 10.11646/zootaxa.4312.1.3, http://zenodo.org/record/852086
(500794) Annie [Prosser]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
title: Breeding for downy mildew resistance in basil
Creators: name: Wident, M.
name: Turner, M.
name: Grimault, V.
name: Van Niekerk, L.
name: Lemaire, B.
name: Rodriguez, A.
name: Degrelle, D.
name: Loubaud, M.
Publisher: name: Julius Kühn-Institut
Year: 2016

description: Julius-Kühn-Archiv 453
(500793) ? [Hubbert]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Assessment of the Financial Condition of Selected Dairy Cooperatives during the COVID-19 Pandemic
Creators: name: Kondej, Magdalena
name: Kondej, Magdalena
Publisher: name: Unknown
Year: 2022
Subjects: subject: Agribusiness
subject: Financial Economics
subject: Industrial Organization
subject: COVID-19 pandemic
subject: finances of dairy cooperatives
subject: financial condition
subject: discriminatory models

description: The aim of the article is to present the financial condition of selected dairy cooperatives using ratio analysis and selected discriminant models. The main objective of the paper is to assess the overall financial condition of dairy cooperatives during the COVID-19 pandemic (2020-2021) and earlier years (2017-2019). The author focused, on the one hand, on the assessment of the financial condition of a selected group and, on the other hand, on the link between the financial situation of selected dairy cooperatives and state aid during the changing economic reality caused by the SARS CoV-2 virus. The financial analysis for dairy cooperatives also reveals a broader comparative context in the time span before and during the COVID-19 pandemic. The research shows that the analysed dairy cooperatives, with the exception of OSM Jasienica Rosielna, did not have a negative financial results.
description: DOI: 10.22630/PRS.2022.22.4.14
(500792) John Hubbert
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
On the radio properties of the intermediate-mass black hole candidate ESO 243-49 HLX-1
Creators: name: Cseh, D.
name: Webb, N. A.
name: Godet, O.
name: Barret, D.
name: Corbel, S.
name: Coriat, M.
name: Falcke, H.
name: Farrell, S. A.
name: Koerding, E.
name: Lenc, E.
name: Wrobel, J. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present follow-up radio observations of ESO 243-49 HLX-1 from 2012 using the Australia Telescope Compact Array (ATCA) and the Karl G. Jansky Very Large Array (VLA). We report the detection of radio emission at the location of HLX-1 during its hard X-ray state using the ATCA. Assuming that the `Fundamental Plane' of accreting black holes is applicable, we provide an independent estimate of the black hole mass of $M_{\rm{BH}}\leq2.8^{+7.5}_{-2.1} \times 10^{6}$ M$_{\odot}$ at 90% confidence. However, we argue that the detected radio emission is likely to be Doppler-boosted and our mass estimate is an upper limit. We discuss other possible origins of the radio emission such as being due to a radio nebula, star formation, or later interaction of the flares with the large-scale environment. None of these were found adequate. The VLA observations were carried out during the X-ray outburst. However, no new radio flare was detected, possibly due to a sparse time sampling. The deepest, combined VLA data suggests a variable radio source and we briefly discuss the properties of the previously detected flares and compare them with microquasars and active galactic nuclei.
description: 10 pages, 2 figures, accepted for publication in MNRAS