cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Radial quadrupole and scissors modes in trapped Fermi gases across the BCS phase transition
Creators: name: Urban, Michael
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The excitation spectra of the radial quadrupole and scissors modes of ultracold Fermi gases in elongated traps are studied across the BCS superfluid-normal phase transition in the framework of a transport theory for quasiparticles. In the limit of zero temperature, this theory reproduces the results of superfluid hydrodynamics, while in the opposite limit, above the critical temperature, it reduces to the collisionless Vlasov equation. In the intermediate temperature range, the excitation spectra have two or three broad peaks, respectively, which are roughly situated at hydrodynamic and collisionless frequencies, and whose strength is shifted from the hydrodynamic to the collisionless modes with increasing temperature. By fitting the time dependent quadrupole deformation with a damped oscillation of a single frequency, we can understand the "jump" of the frequency of the radial quadrupole mode as a function of interaction strength which has recently been reported by the Innsbruck group.
description: 6 pages, v2: extended description of the theoretical method
Local holomorphic Euler characteristic and instanton decay
Creators: name: Gasparim, Elizabeth
name: Köppe, Thomas
name: Majumdar, Pushan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 14J60, 14J81

description: We study the local holomorphic Euler characteristic $χ(x,\mathcal{F})$ of sheaves near a surface singularity obtained from contracting a line $\ell$ inside a smooth surface $Z$. We prove non-existence of sheaves with certain prescribed numerical invariants. Non-existence of instantons on $Z$ with certain charges follows, and we conclude that $\ell^2$ poses an obstruction to instanton decay. A Macaulay 2 algorithm to compute $χ$ is made available at http://www.maths.ed.ac.uk/~s0571100/Instanton/
description: 15 pages. Revision history: v1: Original. v2: minor corrections, as published
Deliverable 3.5 Specification of new pilot funding calls
Creators: name: De San Pedro Bota, Iris
name: Doležal, Michael
Publisher: name: Zenodo
Year: 2021
Subjects: Open Science, RRI, funding, open peer review, co-creation

description: The two research funding partners in ORION, the Instituto de Salud Carlos III, ISCIII, Spain, and the South Moravian Center for International Mobility, JCMM, Czech Republic, worked together and took complementary approaches to explore integration of Open Science RRI principles in funding processes, co-creating funding calls with multiple stakeholders, thus ‘opening-up’ the research funding engine. ISCIII designed the RRI Health Awards to reward those institutions that implement the RRI dimensions in their institutions, and JCMM designed and ran a student competition on Open Science projects for the Brno universities.
Horizons in Robinson-Trautman space-times
Creators: name: Natorf, W.
name: Tafel, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The past quasi-local horizons in vacuum Robinson-Trautman spacetimes are described. The case of a null (non-expanding) horizon is discussed. It is shown that the only Robinson-Trautman space-time admitting such a horizon with sections diffeomorphic to S_2 is the Schwarzschild space-time. Weakening this condition leads to the horizons of the C-metric. Properties of the hypersurface r=2m for finite retarded time u are examined.
description: 11p
Kink Confinement and Supersymmetry
Creators: name: Mussardo, Giuseppe
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We analyze non-integrable deformations of two-dimensional N=1 supersymmetric quantum field theories with kink excitations. As example, we consider the multi-frequency Super Sine Gordon model. At weak coupling, this model is robust with respect to kink confinement phenomena, in contrast to the purely bosonic case. If we vary the coupling, the model presents a sequence of phase transitions, where pairs of kinks disappear from the spectrum. The phase transitions fall into two classes: the first presents the critical behaviors of the Tricritical Ising model, the second instead those of the gaussian model. In the first case, close to the critical point, the model has metastable vacua, with a spontaneously supersymmetry breaking. When the life-time of the metastable vacua is sufficiently long, the role of goldstino is given by the massless Majorana fermion of the Ising model. On the contrary, supersymmetry remains exact in the phase transition of the second type.
description: 29 pages, 12 figures
MPEC 2024-T24 : 2024 TA
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TA

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Urytalpa yoshidai Uesugi 2004
Creators: name: Zhu, Yi
name: Huang, Junhao
name: Liu, Liwei
name: Qi, Lei
name: Wang, Yang
name: Wu, Hong
name: Wang, Qingyun
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Keroplatidae
Urytalpa
Urytalpa yoshidai

description: Urytalpa yoshidai Uesugi, 2004 (Figs 4–5)
Urytalpa yoshidai Uesugi, 2004: 374.
Specimen examined. Male. CHINA: Sichuan, Mt. Tiantai (30.28° N, 103.14° E), 950 m, 05.VIII.2020, coll. Ying Wang, slide no. TTS-10-78.
DNA barcode. The DNA barcode sequence of the studied specimen is deposited in BOLD and GenBank (Table 1).
Distribution. China (Sichuan), Japan.
Comments. The only specimen of this species was not intact (Fig. 4), but we found that its morphological characters of the head and male terminalia (Fig. 5) exactly match the description of U. yoshidai (Uesugi 2004: Fig. 4).
description: Published as part of Zhu, Yi, Huang, Junhao, Liu, Liwei, Qi, Lei, Wang, Yang, Wu, Hong & Wang, Qingyun, 2024, A new species and a new record of Urytalpa Edwards, 1929 (Diptera: Keroplatidae) from China, pp. 113-123 in Zootaxa 5447 (1) on page 117, DOI: 10.11646/zootaxa.5447.1.7, http://zenodo.org/record/11119297
Light-matter excitations in the ultra-strong coupling regime
Creators: name: Anappara, Aji A.
name: De Liberato, Simone
name: Tredicucci, Alessandro
name: Ciuti, Cristiano
name: Biasiol, Giorgio
name: Sorba, Lucia
name: Beltram, Fabio
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In a microcavity, light-matter coupling is quantified by the vacuum Rabi frequency $Ω_R$. When $Ω_R$ is larger than radiative and non-radiative loss rates, the system eigenstates (polaritons) are linear superposition of photonic and electronic excitations, a condition actively investigated in diverse physical implementations. Recently, a quantum electrodynamic regime (ultra-strong coupling) was predicted when $Ω_R$ becomes comparable to the transition frequency. Here we report unambiguous signatures of this regime in a quantum-well intersubband microcavity. Measuring the cavity-polariton dispersion in a room-temperature linear optical experiment, we directly observe the anti-resonant light-matter coupling and the photon-energy renormalization of the vacuum field.
Anthalona spinifera Tiang-nga, Sinev et Sanoamuang 2016
Creators: name: Gusakov, Vladimir A.
name: Dien, Tran Duc
name: Tran, Hoan Quoc
name: Thanh, Nguyen Thi Hai
name: Huan, Phan Trong
name: Ha, Vo Thi
name: Dinh, Cu Nguyen
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Branchiopoda
Anomopoda
Chydoridae
Anthalona
Anthalona spinifera

description: 18. * Anthalona spinifera Tiang-nga, Sinev et Sanoamuang, 2016
Localities and specimens found: 42 – 1♀, 1♀ ov.
Distribution and ecology. As the previous congener, this is a rare member of the genus, recently described from Thailand (Tiang-nga et al. 2016). It probably also belongs to the endemics of the region. So far, A. spinifera has only been recorded in Thailand and Malaysia (Sinev 2016, 2017; Tiang-nga et al. 2016, 2020; Sinev & Yusoff 2018; Choedchim & Maiphae 2023; Sinev et al. 2023b). This is its first find in Vietnam.
The lifestyle and ecology of A. spinifera are poorly studied. Obviously, it is a macrophyte-associated species that prefers overgrown shallow biotopes. Tо date, the crustacean has been detected in lakes, swamps, rice fields and slow-flowing rivers (Sinev 2017; Tiang-nga et al. 2016, 2020; Sinev & Yusoff 2018; Choedchim & Maiphae 2023). We found two of its females in a small artificial pond, abundantly plant-filled and heavily acidified (see Appendix 1).
description: Published as part of Gusakov, Vladimir A., Dien, Tran Duc, Tran, Hoan Quoc, Thanh, Nguyen Thi Hai, Huan, Phan Trong, Ha, Vo Thi & Dinh, Cu Nguyen, 2025, An annotated checklist of the main representatives of meiobenthos from inland water bodies of Central and Southern Vietnam. III. Water fleas (Cladocera), pp. 401-455 in Zootaxa 5613 (3) on page 413, DOI: 10.11646/zootaxa.5613.3.1, http://zenodo.org/record/15216705
Testing Error Correcting Codes by Multicanonical Sampling of Rare Events
Creators: name: Iba, Yukito
name: Hukushima, Koji
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The idea of rare event sampling is applied to the estimation of the performance of error-correcting codes. The essence of the idea is importance sampling of the pattern of noises in the channel by Multicanonical Monte Carlo, which enables efficient estimation of tails of the distribution of bit error rate. The idea is successfully tested with a convolutional code.
Hypatian Math
Creators: name: Del Bel, Julian
Publisher: name: Zenodo
Year: 2025

description: Physical phenomena emerge from the combined contributions of all ”places” – including the real continuum and p-adic number fields. We present a concrete implementation of this principle through precise numerical integration, demonstrating how these divergent contributions can be reconciled to produce normalized physical quantities. Adelic integration emerged in reconciling quantum field theoretic models with number-theoretic methods. In this work, we develop a quantum-consistent framework wherein contributions from the real continuum and the p-adic spectrum are integrated with Euler-like prime factors. A critical aspect of our model is the anomaly detection mechanism, which is essential for ensuring that recursive expansions do not propagate numerical instabilities
Karhunen-Loeve Basis Functions of Kolmogorov Turbulence in the Sphere
Creators: name: Mathar, Richard J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The statistically independent Karhunen-Loeve modes of refractive indices with isotropic Kolmogorov spectrum of the covariance are calculated in a sphere of given radius, rendered as series of 3D Zernike functions. Many of the symmetry arguments of the associated 2D problem for the circular input pupil remain valid. The technique of efficient diagonalization of the eigenvalue problem in wavenumber space is founded on the Fourier representation of the 3D Zernike basis.
description: Corrected factor 2pi in eq. (20) and associated tables
title: Ignite your strengths: Resilience education for firefighters
Creators: name: Blaney, Leigh
name: Spriggs, Geoffrey
name: Lumley, Joshua
name: Agyekum, Eric
name: Slonowsky, Dean
name: Macdonald, Anna
Publisher: name: Crisis, Stress, and Human Resilience: An International Journal
Year: 2023
Subjects: subject: Volunteer fire fighters
subject: Resilience (Personality trait)

description: This article was originally published as: Blaney, L., Spriggs, G., Lumley, J., Agyekum, E., Slonowsky, D., & Macdonald, A. (2023). Ignite your strengths: Resilience education for firefighters. Crisis, Stress, and Human Resilience: An International Journal, 5(2), 35-56.
description: This study took an innovative approach to design, develop and test a health promoting resilience education workshop for paid-on-call (POC) firefighters and explored the following questions: (1) Is a resilience education workshop effective for building and maintaining resilience in volunteer firefighters? (2) How do firefighters define and experience resilience? (3) What are the strategies that firefighters use to build and maintain resilience? Firefighters attended a resilience education workshop, and mixed methods were used to explore the complexity of resilience and address the research questions. Participants were asked to complete questionnaires pre-education (Pre-Ed), immediately following the education (Post-Ed), and two months following the education (2 Month Post-Ed). We found that prior to education, firefighters are moderately resilient, as measured using the Resilience Scale (RS) and Resilience at Work (R@W) Scale. Resilience scores on both scales demonstrated statistically significant increases immediately following a resilience education workshop. Qualitative data indicates that firefighters have a wide array of health strategies for building and maintaining their resilience that were further enhanced through experiential education. The workshop introduced new resilience strategies that were integrated into the firefighters’ ‘toolbox’ of cognitive and behavioural skills and these strategies continued to be utilized over time. The results of this study indicate that resilience education should be integrated into organizational health and safety policies. The multiple tools and analyses used in this study support the overal findings that resilience education workshops are an effective tool to be used in a broader wellness context for firefighters.
Some fundamental problems for an energy conserving adaptive resolution molecular dynamics scheme
Creators: name: Site, L. Delle
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Adaptive resolution molecular dynamics (MD) schemes allow for changing the number of degrees of freedom on the fly and preserve the free exchange of particles between regions of different resolution. There are two main alternatives on how to design the algorithm to switch resolution using auxiliary ''switching'' functions; force based and potential energy based approach. In this work we show that, in the framework of classical MD, the latter presents fundamental conceptual problems which make unlikely, if not impossible, the derivation of a robust algorithm based on the potential energy.
description: 4 pages, 1 figure (color); Phys.Rev.E (2007) in press
30BALINT1118.pdf
Creators: name: Nemes-Nagy, Eniko
Publisher: name: figshare
Year: 2021
Subjects: Biochemistry

description: The constantly and intensely changing modern society has a negative influence on the the general population’shealth status. Risk factors being deeply inserted in the structure of the modern society can hardly be influencedand corrected. The aim of the study was the lifestyle- and diet-related comparison of two distinct adultpopulations from Romania: Bacau and Tirgu Mures. Material and methods: We evaluated the dietary habits,alcohol consumption and physical activity by a complex, validated questionnaire. Body mass index wasalso determined. The adult population from Tirgu Mures numbered 352 subjects, who were compared to theadults from Bacau, numbering 231 individuals. The considered threshold of significance was 0.05. Bodymass index is over the normal range in more than 2/3 of the subjects. The overweight occurrence was37.95%. The majority of the subjects (77.5%) has regular daily exercise (30 minutes or more). Daily alcoholconsumption was present in 42.42% of the cases. Dietary habits were also analyzed: 61.9% of the subjectsconsume breakfast daily, and 46.94% of them consumes snacks between meals 2-3 times per week. Astatistical difference could be observed regarding the frequency of breakfast consumption and body massindex (p-0.042): 2/3 of the studied adults from Tirgu Mures who eat breakfast sometimes having their bodymass index over 25 kg/m2. Regarding physical activity a significant difference could be observed in case ofthose who responded rarely or never (p-0.027) (76.0% of Mures county with this response vs. only 24.0% inBacau). The frequency of alcohol consumption is higher in Tirgu Mures and surroundings in case of once orseveral times per week consumption (p-0.005). Instructional and educational interventions targeting thedevelopment of healthier lifestyle habits in general population are worthy and needed to reduce the riskfactors associated with the development of cardiovascular and metabolic diseases and reducing the burdenupon the society of these diseases.
Energy analysis of residential structure space conditioned by heat pump and furnace using computer simulation
Creators: name: Choi, Charlie Kee-Choon
Publisher: name: University of British Columbia
Year: 2010

description: An energy simulation program, named RHECAP (Residential Home Energy Consumption Analysis Program), for residential structure space conditioned by a furnace and a heat pump has been developed. The program calculates the hourly cooling or heating load imposed on the furnace or heat pump and then the energy input to the furnace or heat pump to satisfy the load for every hour of every day of a condensed year. The condensed year consists of thirty-six days; a month is represented by three days. The hourly cooling load is determined by using a method designated as "Time-Averaging with Shift". This method has been developed from time-averaging principle and uses a different set of parameters, time-averaging period and shift amount, for different energy sources. Each hourly load of a day is obtained by summing the arithmetic average of the radiant heat gains of a number of preceding hours and the convective heat gain of the current hour. This gives the daily load profile which is then shifted to yield the final load profile. This method accounts for the building heat storage effect in converting instantaneous heat gain to the cooling load. A polynomial equation which expresses the furnace efficiency degradation with the drop of the furnace load has been developed. This equation and the furnace performance at steady state condition are used to represent furnace performance for the entire range of operating conditions. The same equation can be used for furnace units of all different capacities. Six linear equations that represent the non-dimensionalized heat pump performance, the output rating (heating and sensible cooling) and electricity use, have been developed. The equations are functions of the outdoor enthalpy. These equations only require the heat pump performance at the outdoor temperature of 35°C (tonnage of heat pump is quoted under this condition) to represent the heat pump performance for the entire range of outdoor operating conditions. The six equations can be used for heat pumps of different capacities from different manufacturers. A simple method of selecting a yearly condensed weather data has been developed. The condensed weather data consists of three days of actual weather information for each month. The weather information is used to determine the cooling and heating load contributions of weather dependent sources and heat pump performance. The program results are compared with the results of two existing programs using an existing and a fictitious residential structure in Vancouver to validate the program. The validation of the program seems to indicated that the program provides acceptable results and the simulation methods used are valid.
Negative differential resistance in molecular junctions: application to graphene ribbon junctions
Creators: name: Cheraghchi, Hosein
name: Esfarjani, Keivan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using self-consistent calculations based on Non-Equilibrium Green's Function (NEGF) formalism, the origin of negative differential resistance (NDR) in molecular junctions and quantum wires is investigated. Coupling of the molecule to electrodes becomes asymmetric at high bias due to asymmetry between its highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels. This causes appearance of an asymmetric potential profile due to a depletion of charge and reduction of screening near the source electrode. With increasing bias, this sharp potential drop leads to an enhanced localization of the HOMO and LUMO states in different parts of the system. The reduction in overlap, caused by localization, results in a significant reduction in the transmission coefficient and current with increasing bias. An atomic chain connected to two Graphene ribbons was investigated to illustrate these effects. For a chain substituting a molecule, an even-odd effect is also observed in the NDR characteristics.
description: 8 pages, 8 figures
Stellar Evolution in the Early Universe
Creators: name: Hirschi, R.
name: Frischknecht, U.
name: Thielemann, F. -K.
name: Pignatari, M.
name: Chiappini, C.
name: Ekstroem, S.
name: Meynet, G.
name: Maeder, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Massive stars played a key role in the early evolution of the Universe. They formed with the first halos and started the re-ionisation. It is therefore very important to understand their evolution. In this paper, we describe the strong impact of rotation induced mixing and mass loss at very low $Z$. The strong mixing leads to a significant production of primary nitrogen 14, carbon 13 and neon 22. Mass loss during the red supergiant stage allows the production of Wolf-Rayet stars, type Ib,c supernovae and possibly gamma-ray bursts (GRBs) down to almost Z=0 for stars more massive than 60 solar masses. Galactic chemical evolution models calculated with models of rotating stars better reproduce the early evolution of N/O, C/O and C12/C13. We calculated the weak s-process production induced by the primary neon 22 and obtain overproduction factors (relative to the initial composition, Z=1.e-6) between 100-1000 in the mass range 60-90.
description: 8 pages, 4 figures, proceedings of IAU Symposium 255, "Low-Metallicity Star Formation: From the First stars to Dwarf Galaxies", L.K. Hunt, S. Madden & R. Schneider, eds
Development of Decision-Making System for Allocating Cane Harvesting Laborers In Inbound Logistics of Sugar Cane and Sugar Industry
Creators: name: Noptada Chaibung
name: Kanchana Sethanan
Publisher: name: Faculty of Engineering, Khon Kaen Univeristy
Year: 2011
Subjects: Labor allocation,Capacitated clustering, Mathematical model, Spanning tree

description: 4, 38, KKU Engineering Journal
Entanglement swapping in a Franson interferometer setup
Creators: name: Messina, Ugo
name: Palma, G. Massimo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a simple scheme to swap the non local correlations, characteristic of a Franson interferometric setup, between pairs of frequency entangled photons emitted by distinct non linear crystals in a parametric down conversion process. Our scheme consists of two distinct sources of frequency entangled photons. One photon of each pair is sent to a separate Mach - Zender interferometer while the other photons of the pairs are mixed by a beam splitter and then detected in a Ou - Mandel interferometer. For suitably postselected joint measuremetns, the photons sent at the Mach -Zender show a coincidence photocount statistics which depends non locally on the settings of the two interferometers.
description: Published on the special issue of JMO in honour of the 60th birthday of Sir Peter Knight, FRS. Submitted to JMO on 10 February 2007. While the present manuscript was processed an independent experimental implementation of the same scheme discussed in our manuscript has been made bythe Geneva GAP as described in arXiv:0704.0758v1
New Positron Spectral Features from Supersymmetric Dark Matter - a Way to Explain the PAMELA Data?
Creators: name: Bergstrom, Lars
name: Bringmann, Torsten
name: Edsjo, Joakim
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The space-borne antimatter experiment PAMELA has recently reported a surprising rise in the positron to electron ratio at high energies. It has also recently been found that electromagnetic radiative corrections in some cases may boost the gamma-ray yield from supersymmetric dark matter annihilations in the galactic halo by up to three or four orders of magnitude, providing distinct spectral signatures for indirect dark matter searches to look for. Here, we investigate whether the same type of corrections can also lead to sizeable enhancements in the positron yield. We find that this is indeed the case, albeit for a smaller region of parameter space than for gamma rays; selecting models with a small mass difference between the neutralino and sleptons, like in the stau coannihilation region in mSUGRA, the effect becomes more pronounced. The resulting, rather hard positron spectrum with a relatively sharp cutoff may potentially fit the rising positron ratio measured by the PAMELA satellite. To do so, however, very large "boost factors" have to be invoked that are not expected in current models of halo structure. If the predicted cutoff would also be confirmed by later PAMELA data or upcoming experiments, one could either assume non-thermal production in the early universe or non-standard halo formation to explain such a spectral feature as an effect of dark matter annihilation. At the end of the paper, we briefly comment on the impact of radiative corrections on other annihilation channels, in particular antiprotons and neutrinos.
description: corrected axis labels in Fig. 3; matches the published version (PRD, in press)
Label-free detection of single nanoparticles with disordered nanoisland surface plasmon sensor
Creators: name: Lee, Hongki
name: Berk, Joel
name: Webster, Aaron
name: Kim, Donghyun
name: Foreman, Matthew R
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We report sensing of single nanoparticles using disordered metallic nanoisland substrates supporting surface plasmon polaritons (SPPs). Speckle patterns arising from leakage radiation of elastically scattered SPPs provides a unique fingerprint of the scattering microstructure at the sensor surface. Experimental measurements of the speckle decorrelation are presented and shown to enable detection of sorption of individual gold nanoparticles and polystyrene beads. Our approach is verified through bright-field and fluorescence imaging of particles adhering to the nanoisland substrate.
description: Supplementary data available from journal website
The Dependence of Galaxy Formation on Cosmological Parameters: Can we distinguish the WMAP1 and WMAP3 Parameter Sets?
Creators: name: Wang, Jie
name: De Lucia, Gabriella
name: Kitzbichler, Manfred G.
name: White, Simon D. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We combine N-body simulations of structure growth with physical modelling of galaxy evolution to investigate whether the shift in cosmological parameters between the 1-year and 3-year results from the Wilkinson Microwave Anisotropy Probe affects predictions for the galaxy population. Structure formation is significantly delayed in the WMAP3 cosmology, because the initial matter fluctuation amplitude is lower on the relevant scales. The decrease in dark matter clustering strength is, however, almost entirely offset by an increase in halo bias, so predictions for galaxy clustering are barely altered. In both cosmologies several combinations of physical parameters can reproduce observed, low-redshift galaxy properties; the star formation, supernova feedback and AGN feedback efficiencies can be played off against each other to give similar results. Models which fit observed luminosity functions predict projected 2-point correlation functions which scatter by about 10-20 per cent on large scale and by larger factors on small scale, depending both on cosmology and on details of galaxy formation. Measurements of the pairwise velocity distribution prefer the WMAP1 cosmology, but careful treatment of the systematics is needed. Given current modelling uncertainties, it is not easy to distinguish the WMAP1 and WMAP3 cosmologies on the basis of low-redshift galaxy properties. Model predictions diverge more dramatically at high redshift. Better observational data at z>2 will better constrain galaxy formation and perhaps also cosmological parameters.
description: 18 pages,17 figures, version accepted by MNRAS, references and subsection on PVD added
Ion implanted GaAs Mesfet technology
Creators: name: Lowe, Kerry Steven
Publisher: name: University of British Columbia
Year: 2010

description: The availability of high quality semi-insulating GaAs substrates is essential to the development of GaAs metal semiconductor field effect transistor (MESFET) integrated circuits. Problems have been encountered with horizontal Bridgman grown substrates since, for example, these must be doped with Cr to make then semi-insulating and the Cr tends to diffuse during device processing. Undoped semi-insulating GaAs substrates can be grown by the Liquid Encapsulated Czochralski (LEC) technique and allow the possibility of forming active regions by the process of implanting dopants directly into the substrate. The purpose of this thesis was to develop at the University of British Columbia a GaAs MESFET technology based on direct ion implantation and to develop methods to assess undoped LEC substrates for Cominco Limited, Trail, B.C. A test device array consisting of structures for process, material, and device characterization was designed and then fabricated on Cominco wafers by a direct implantation process. Measurements on the test device array elements showed that this initial process could be used to produce MESFET's operational up to 3 GHz and that the test device array will be useful for monitoring future process developments and improvements. In addition, a channel conductance deep level transient spectroscopy system, a photocurrent deep level transient spectroscopy system, and a novel MESFET drain current hysteresis analysis system were developed to examine deep levels in GaAs and deep level trapping effects in GaAs MESFET's.
X-Ray Analysis of Oxygen-induced Perpendicular Magnetic Anisotropy in Pt/Co/AlOx trilayer
Creators: name: Manchon, Aurélien
name: Pizzini, Stefania
name: Vogel, Jan
name: Uhlir, Vojteh
name: Lombard, Lucien
name: Ducruet, Clarisse
name: Auffret, Stéphane
name: Rodmacq, Bernard
name: Dieny, Bernard
name: Hochstrasser, Michael
name: Panaccione, Giancarlo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: X-ray spectroscopy measurements have been performed on a series of Pt/Co/AlOx trilayers to investigate the role of Co oxidation in the perpendicular magnetic anisotropy of the Co/AlOx interface. It is observed that high temperature annealing modifies the magnetic properties of the Co layer, inducing an enhancement of the perpendicular magnetic anisotropy. The microscopic structural properties are analyzed via X-ray Absorption Spectroscopy, X-ray Magnetic Circular Dichroism and X-ray Photoelectron Spectroscopy measurements. It is shown that annealing enhances the amount of interfacial oxide, which may be at the origin of a strong perpendicular magnetic anisotropy.
Innovación educativa, perspectiva de género: de la teoría a la práctica
Creators: name: García-Holgado, A.
Publisher: name: Zenodo
Year: 2021
Subjects: STEM, STEAM, género, inclusión, CreaSTEAM, W-STEM, coeducación

description: Conferencia invitada en el VI Congreso de Educación Contemporánea. Calidad Educativa y Buen Vivir. Esta conferencia se ha celebrado en la Universidad Nacional de Chimborazo (Ecuador) del 24 al 27 de noviembre de 2021. En esta ponencia se defiende la igualdad de género a través de la coeducación que es una propuesta pedagógica actual para dar respuesta a la reivindicación de la igualdad realizada por la teoría feminista, que propone una reformulación del modelo de transmisión del conocimiento y de las ideas desde una perspectiva de género en los espacios de socialización destinados a la formación y el aprendizaje. Este enfoque se ilustra desde dos proyectos europeos CreaSTEAM (2020-1-ES01-KA201-082601) y W-STEM (598923-EPP-1-2018-1-ES-EPPKA2-CBHE-JP).
description: W-STEM (Building the future of Latin America: engaging women into STEM) is a project funded under European Union ERASMUS + Capacity-building in Higher Education Programme (598923-EPP-1-2018-1-ES-EPPKA2-CBHE-JP). The European Commission support for the production of this publication does not constitute an endorsement of the contents which reflects the views only of the authors, and the Commission cannot be held responsi­ble for any use which may be made of the information contained therein. CreaSTEAM (Co-thinking and Creation for STEAM diversity-gap reduction) is co-financed by the Erasmus + program of the European Union (Ref.: 2020-1-ES01-KA201-082601). The content of the publication is the sole responsibility of the consortium and neither the European Commission, nor the Spanish Service for the Internationalization of Education (SEPIE) are responsible for the use that may be made of the information disclosed.
Highly accurate recommendation algorithm based on high-order similarities
Creators: name: Liu, Jian-Guo
name: Zhou, Tao
name: Wang, Bing-Hong
name: Zhang, Yi-Cheng
Publisher: name: arXiv
Year: 2008
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Information Retrieval (cs.IR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this Letter, we introduce a modified collaborative filtering (MCF) algorithm, which has remarkably higher accuracy than the standard collaborative filtering. In the MCF, instead of the standard Pearson coefficient, the user-user similarities are obtained by a diffusion process. Furthermore, by considering the second order similarities, we design an effective algorithm that depresses the influence of mainstream preferences. The corresponding algorithmic accuracy, measured by the ranking score, is further improved by 24.9% in the optimal case. In addition, two significant criteria of algorithmic performance, diversity and popularity, are also taken into account. Numerical results show that the algorithm based on second order similarity can outperform the MCF simultaneously in all three criteria.
Thermal Flipping of Interstellar Grains
Creators: name: Weingartner, Joseph C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In interstellar dust grains, internal processes dissipate rotational kinetic energy. The dissipation is accompanied by thermal fluctuations, which transfer energy from the vibrational modes to rotation. Together, these processes are known as internal relaxation. For the past several years, internal relaxation has been thought to give rise to thermal flipping, with profound consequences for grain alignment theory. I show that thermal flipping is not possible in the limit that the inertia tensor does not vary with time.
description: 5 pages, accepted by ApJ
Clustering of supernova Ia host galaxies
Creators: name: Carlberg, R. G.
name: Sullivan, M.
name: Borgne, D. Le
name: Conley, A.
name: Howell, D. A.
name: Perrett, K.
name: Astier, P.
name: Balam, D.
name: Balland, C.
name: Basa, S.
name: Hardin, D.
name: Fouchez, D.
name: Guy, J.
name: Hook, I.
name: Pain, R.
name: Pritchet, C. J.
name: Regnault, N.
name: Rich, J.
name: Perlmutter, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: For the first time the cross-correlation between type Ia supernova host galaxies and surrounding field galaxies is measured using the Supernova Legacy Survey sample. Over the z=0.2 to 0.9 redshift range we find that supernova hosts are correlated an average of 60% more strongly than similarly selected field galaxies over the 3-100 arcsec range and about a factor of 3 more strongly below 10 arcsec. The correlation errors are empirically established with a jackknife analysis of the four SNLS fields. The hosts are more correlated than the field at a significance of 99% in the fitted amplitude and slope, with the point-by-point difference of the two correlation functions having a reduced $χ^2$ for 8 degrees of freedom of 4.3, which has a probability of random occurrence of less than 3x10^{-5}. The correlation angle is 1.5+/-0.5 arcsec, which deprojects to a fixed co-moving correlation length of approximately 6.5+/- 2/h mpc. Weighting the field galaxies with the mass and star formation rate supernova frequencies of the simple A+B model produces good agreement with the observed clustering. We conclude that these supernova clustering differences are primarily the expected outcome of the dependence of supernova rates on galaxy masses and stellar populations with their clustering environment.
description: ApJ (Letts) accepted
Constraints on Barrow entropy from M87* and S2 star observations
Creators: name: Jusufi, Kimet
name: Azreg-Aïnou, Mustapha
name: Jamil, Mubasher
name: Saridakis, Emmanuel N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use data from M87* central black hole shadow, as well as from the S2 star observations, in order to extract constraints on Barrow entropy. The latter is a modified entropy arising from quantum-gravitational effects on the black hole horizon, quantified by the new parameter $Δ$. Such a change in entropy leads to a change in temperature, as well as to the properties of the black hole and its shadow. We investigate the photon sphere and the shadow of a black hole with Barrow entropy, and assuming a simple model for infalling and radiating gas we estimate the corresponding intensity. Furthermore, we use the radius in order to extract the real part of the quasinormal modes, and for completeness we investigate the spherical accretion of matter onto the black hole, focusing on isothermal and polytropic test fluids. We extract the allowed parameter region, and by applying a Monte-Carlo-Markov Chains analysis we find that $ Δ\simeq 0.0036^{+0.0792}_{-0.0145}$. Hence, our results place the upper bound $Δ\lesssim0.0828$ at 1$σ$, a constraint that is less strong than the Big Bang Nucleosynthesis one, but significantly stronger than the late-time cosmological constraints.
description: 10 pages, 6 figures, 1 table, version to appear in Universe, as invited contribution to the Special Issue "Large Scale Structure of the Universe"
Flow regimes and pressure histories during blowdown from a vertical tube
Creators: name: Steeves, Alan
Publisher: name: University of British Columbia
Year: 2010

description: A series of blowdown experiments have been performed while discharging either vertically (upwards or downwards) or horizontally in order to compare the effect of body force on transient flow patterns and pressure histories. Tests were done using Freon-114 in a clear polycarbonate pipe 4 m long with a 32 mm I.D. Results, presented in the form of flow regime maps, show that the basic nature of the developing flow in a vertical pipe when discharging upward is different than for the downward discharge case. Both cases are in turn markedly different than for horizontal discharge. Pressure histories were found to fall into two categories: one in which the pressure fell rapidly to near the saturation pressure, then slowly to atmospheric; a second in which transient repressurization to nearly the initial pressure was observed following the initial pressure drop. The second category occurred only in the vertical pipe and could not be satisfactorily explained. Rapid changes in axial pressure gradient, and possible flow reversal, were noted in the repressurization case.
On the impact of an intermediate duration X-ray burst on the accretion environment in IGR J17062-6143
Creators: name: Bult, Peter
name: Altamirano, Diego
name: Arzoumanian, Zaven
name: Ballantyne, David R.
name: Chenevez, Jerome
name: Fabian, Andrew C.
name: Gendreau, Keith C.
name: Homan, Jeroen
name: Jaisawal, Gaurava K.
name: Malacaria, Christian
name: Miller, Jon M.
name: Parker, Michael L.
name: Strohmayer, Tod E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on a spectroscopic analysis of the X-ray emission from IGR J17062-6143 in the aftermath of its June 2020 intermediate duration Type I X-ray burst. Using the Neutron Star Interior Composition Explorer, we started observing the source three hours after the burst was detected with MAXI/GSC, and monitored the source for the subsequent twelve days. We observed the tail end of the X-ray burst cooling phase, and find that the X-ray flux is severely depressed relative to its historic value for a three day period directly following the burst. We interpret this intensity dip as the inner accretion disk gradually restoring itself after being perturbed by the burst irradiation. Superimposed on this trend we observed a $1.5$ d interval during which the X-ray flux is sharply lower than the wider trend. This drop in flux could be isolated to the non-thermal components in the energy spectrum, suggesting that it may be caused by an evolving corona. Additionally, we detected a 3.4 keV absorption line at $6.3σ$ significance in a single $472$ s observation while the burst emission was still bright. We tentatively identify the line as a gravitationally redshifted absorption line from burning ashes on the stellar surface, possibly associated with ${}^{40}{\rm Ca}$ or ${}^{44}{\rm Ti}$.
description: 14 pages, 7 figures, 3 tables. Accepted for publication in ApJ
Non-uniform sampling, image recovery from sparse data and the discrete sampling theorem
Creators: name: Yaroslavsky, Leonid P.
name: Shabat, Gil
name: Salomon, Benny G.
name: Ideses, Ianir A.
name: Fishbain, Barak
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In many applications sampled data are collected in irregular fashion or are partly lost or unavailable. In these cases it is required to convert irregularly sampled signals to regularly sampled ones or to restore missing data. In this paper, we address this problem in a framework of a discrete sampling theorem for band-limited discrete signals that have a limited number of non-zero transform coefficients in a certain transform domain. Conditions for the image unique recovery, from sparse samples, are formulated and then analyzed for various transforms. Applications are demonstrated on examples of image super-resolution and image reconstruction from sparse projections.
Andropogon 1950-1983 Response Curves
Creators: name: Frailey, Anna
Publisher: name: figshare
Year: 2021
Subjects: subject: Plant Biology
subject: FOS: Biological sciences
subject: Atmospheric Sciences
subject: FOS: Earth and related environmental sciences

description: Andropogon 1950-1983 Response Curves
Test of unparticle long range forces from perihelion precession of Mercury
Creators: name: Das, Suratna
name: Mohanty, Subhendra
name: Rao, Kumar
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Unparticle exchange gives rise to long range forces which deviate from the inverse square law due to non-canonical dimension of unparticles. It is well known that a potential of the form $r^{-n}$ where $n$ is not equal to one gives rise to a precession in the perihelion of planetary orbits. We calculate the constraints on unparticle couplings with baryons and leptons from the observations of perihelion advance of Mercury orbit.
description: Version to be appeared in PRD
Cthulhu morbus come teleologia del (e) fallimento della moderna secolarizzazione e Epifania Strategica, Massimo Morigi, Repubblicanesimo Geopolitico, Neo-marxismo, Neo-marxisms.pdf
Creators: name: Morigi, Massimo
Publisher: name: figshare
Year: 2021
Subjects: subject: 220301 Aesthetics
subject: FOS: Philosophy, ethics and religion
subject: 220199 Applied Ethics not elsewhere classified
subject: 220101 Bioethics (human and animal)
subject: 220302 Decision Theory
subject: 220304 Epistemology
subject: 220305 Ethical Theory
subject: History
subject: 210399 Historical Studies not elsewhere classified
subject: FOS: History and archaeology
subject: 220206 History and Philosophy of Science (incl. Non-historical Philosophy of Science)
subject: 220209 History of Ideas
subject: 220210 History of Philosophy
subject: 220311 Philosophical Psychology (incl. Moral Psychology and Philosophy of Action)
subject: Philosophy
subject: 229999 Philosophy and Religious Studies not elsewhere classified
subject: 220399 Philosophy not elsewhere classified
subject: 220315 Philosophy of Religion
subject: 220316 Philosophy of Specific Cultures (incl. Comparative Philosophy)
subject: 220317 Poststructuralism
subject: 220499 Religion and Religious Studies not elsewhere classified
subject: 220405 Religion and Society
subject: Religious Studies
subject: 220319 Social Philosophy

description: Storia della epidemia Covid19 dal punto di vista neomarxista e antropologico-filosofico
Cephennium granulum REITTER 1884
Creators: name: Assing, Volker
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Cephennium
Cephennium granulum

description: Cephennium granulum REITTER, 1884 (Figs 13-14)
The original description is based on an unspecified number of type specimens from "Parnes bei Athen, Salonichi" (REITTER 1884). Besuchet (unpublished notes) examined material (including type material) from Corfu, Thessaloniki, Parnes (near Athens), Oros Parnassos, and Nauplia, as well as several specimens without specified localities ("Graecia") from the collections of Perrot, Dodero, Binaghi, and Croissandeau, from NHMW, SDEI, and from his own collection (MHNG). The aedeagus is illustrated in Figs 13-14.
description: Published as part of Assing, Volker, 2021, On the Cephennium fauna of Greece (Coleoptera, Staphylinidae, Scydmaeninae), pp. 869-889 in Linzer biologische Beiträge 52 (2) on page 872, DOI: 10.5281/zenodo.5039012
Epigenetica e filosofia e fisica della prassi
Creators: name: Morigi, Massimo
Publisher: name: figshare
Year: 2021
Subjects: subject: 220399 Philosophy not elsewhere classified
subject: FOS: Philosophy, ethics and religion

description: Saggio filosofico di Massimo Morigi sull'epigenetica profilato sul paradigma del Repubblicanesimo Geopolitico